Battle RC Frequencies now almost seems like right American switch RC transmitter fly plane hearts content its Its privilege right fought long hard modeling predeces sors over 40 years ago Part three-part series U Walt Good HOW WOULD like fly Radio Con trol AMA Nationals upon arrival discover 268 RC contes tantswith over 200 fre quency situationat 1958 Nats Chicagovividly illustrates painful steps AMA encountered its struggle obtain RC channels rap idly growing family RC fliers story early years fly ing RC frequencies battles fought obtain first RC chan nels FCC Over span 40 years Academy Model Aeronautics has en gaged least six confrontations Federal Communications Commission ac quire new RC channels protect channels already gained Equally impor tant fliers needed channels did require examinations licensing first battle begins acquisition single examination-free RC frequency last skirmish wont over until AMA has achieved its long-term goal gaining 80 exclusive RC channels Please note personal report based viewed events active participant almost phase por trayed story hope accurate its undoubtedly limited weakening memory hundreds ragged incom plete files gladly leave task filling gaps other generous souls participated efforts First look earliest beginnings 88 Model Aviation 4 authors twin brother Bill 1937-vintage transmitter Power output 100 watts note two big tubes An AC power cord runs outlet inside hangar author 1938 RC Guff model Note open side door revealing receiver relay Single-channel control rudder done using rubber-powered escapement THE EVENING STAR WMhJngton D CA-iSFEDERAL COMMUNICATIONS COMMISSION WEOSEODAY APRIL U 5952 Denny Envisions Radio Co -I es FutureFrom CEO E STERLING perfectly poHible soi recelvero thatCommissioner today model plane fans fly could get cost dow____________________________________________________________[v32][b2125429121100]] about 824 TheRemarks theIr creations radIo control mltters would much exAQA/Je Instead cIrcling wIre pensIve about $180 r ' tether planned sell ThIs Informed opln- clubs members Informed opIn can c wIth transmItters whlIIAJ0A Ion Iteginald ontrol plane Denny star d take five radio chan % stage andneis operate transmitter... screen Mr rudder control nyelevators etc took it1 i e about radioup Federal Communca 8 controlledtlons CommissIon tuinedF j down cold 11i models In-- vented Today Infinite numberl4 used , ultra high frequency channels e tar- available radIo con F Competition among builders IdAUINGOON 0 0 get practice tolled plane event meet ~ h ~runer planes has made pos guided - wd FCC has alIf D07aictemporary use 21251 possible new departuref. described megacycle wave band dem . model builders asa utopia could 1send planes fsr eyep ould see bF-be Above Reginald Denny movie star developer RC target drones during WW ii proposed FCC establish frequencies hobby RC planes Mr Denny claimed turned him down cold George Sterling figures apparently didnt know new 27255 MHz RC channel gone effect month earlier Below left L-R Walt Good Reginald Denny Bud Chapman lunching Paramount Studios 1938 Walt telling Denny about hobby RC planes Bud 1938 California Free Flight Gas Model Champ listens As FF Gas winners Walt Bud got airplane trips Hollywood tour Paramount Studios promoting movie Men Wings Right Walt Good Dorothy Lamour showboat set St Louis Blues Bud Walt parts movie extras grandstand audience scene Pre-World War W II RC Contests 19371941 Lets step back years just prior WW II see early RC fliers ac quired frequencies fly 1937 Nats Detroit first Nats RC event held RC pilots used amateur radio frequenciesprimarily 56 60 MHz six Nats entries acquired necessary amateur Ham licenses partners done transmitter signed air license holder sending call sign Morse code before flight signed off after flight During actual flight model builder part team used control buttons steer plane Legally speaking non-Ham al lowed operate transmitter overlooked days stories subject later Thus five RC Nats held 1937 through 1941 Ham frequencies used exclusively World War II shut down amateur radio en tirely 1942 1946 Ham transmit ters disabledas Radio Control hobby erstwhile RC hobbyists engaged military service work ing days nights weekends confiden tial hush-hush projects Uncle Sam After World War II 1946-1952 im mediate postwar years RC event re vived 1946 AMA Nats Wichita KS five RC entries year pilots flew great enthusi asm Again amateur radio frequencies used FCC shifted prewar 56-60 MHz band 50-54 MHz after war regulatory body still required Ham li cense obtain such license pass code test electronics test test radio regulationsnot easy task modeler wanted simple radio equipment simple radio license What RC hobbyists needed able obtain license exclusively RC flying examination Examination-free RC frequencies 1946 British modelers led way May 1989 89 RC competitions rorooo o 4p tosuoi 04oi, hr rho itoi ho nrrdI cidre Thr chip drrrol heir hop crc o ocrirroir crc ii Verrirerit IrrrloOotert cor hiro lrrrorvrry. rr horroorrrrl 004cr errilo C rrrrrrrlrtOricP C cirriricod rrrrroirrr arid Irrophr thrirt irk pp Vrorr itrrrirrit Iii di irk ni rkiirl ii irl hip diii hirk iii -A dli icud urrililii rrrurorr ii1 0did ii crc C CI cr Cc rIpohd iiirc l-I ivr crriiu i i1 As appeared July 1937 issue QST Ross Hull Byron Goodman assemble 13-fl RC Glider West Hartford CT along Clinton DeSoto staff QST amateur radio magazine introduced RO hobby radio amateurs securing examination-free RC license 27 MHz 460 MHz done means simple exchange let ters between D W Allen Society Model Aero Engineers British counter part AMA British Post fice represented Engineer-in-Chief Radio Branch Mr C E Clarke Mr Clarkes short reply Allen dated November 8 1946 sanctioned follow ing frequencies RC model use Britain Frequency #14605 MHz within Hz Frequency #22766-28 MHz Additional specifications Clarkes let ter follows Maximum input power five watts No special license required Use equipment RC communication Modelers US felt optimistic British could obtain RC frequencies quickly expected little no delay se curing similar response Federal Communications Commission FCC Un fortunately wrong Several years pass before obtained similar RC use frequencies America First Battle RC Frequencies 1946 living Washington DC 1946 Russ Nichols executive diFEDERAL COMMUNICATIONS COMMISSION WASHINGTON 25 DC November 4 1948 ARORESS ALL COMMUNICATIONS reply refer 6104 Loademy Model Lsronautics l03 Conxeoticut Lvenue NW Washington 6 D 0 Gentlemen Observation made during National Model Airoraft Meet Naval Air Station Olathe Kansas August 4 8 1948 inclusive revealed number ireg1slarities oomneo tion use 01 amateur stations purpose remotely controlling model aircraft radio intended t oitationa will jasued instance However 1l appreciated organization calls attention members foflowing omissions appear quit prevalent airt emphasizes amat eur stations operated purpose applicable rules should adhered Thzring course Meet foflowing omissions As result FCC inspectors report AMA received letter FCC outlining violations committed RC contestants 1948 Nationals held Olathe KS rector AMA immediately dis cussed modelers RC frequency needs him Having worked several gov eminent agencies before joining AMA Russ familiar some proce dures suggested arrange visit Federal Communications Commis sion discuss matter RC frequencies face-to-face January 1947 letter FCC AMA ouflined its RC airplane needs fashion similar British SMAE letter requested exploratory meeting first meeting held April 30 1947 Eight FCC engineers representing seven FCC departments attended Russ representing AMA pos itive result FCC suggestion newly contemplated Citizens Radio Service might able offer channel RC Af ter several visits FCC personnel year Russ thought making some progressalthough still ob tained no RC frequencies 1947 Nats Minneapolis seven RC entries number suc cessful flights RC planes growing up However still using Ham fre quencies concomitant requirement amateur license just gotten Ham license after three attempts months pass code test must admit thing hurt watching 10year-old kid zip through code test first try As consolation finished writ ten parts electronics regulations exams before did Follow-up meetings between FCC AMA discuss simple no exam RC frequencies equally unproductive 1948 drew close still achieved nothing tangible Admittedly bit slow learning deal FCCs bureaucratic system however about get some action RC modelers charged FCC viola tions1948 1948 Nats August Olathe KS saw 14 RC entries demon strated numerous flights also scored first FCC observers appeared Nats showed interest RC event expressed concern AMA November 1948 letter detailing number violations FCC regulations through improper use amateur sta tions no citations made against Ham operators time FCC dicated might future ci tation type could result withdrawal Hams license FCC finally gotten FCCs attention respect RC planes frequen cies Ironically wasnt sort atten tion hoped FCC observers learned later inspectors local field office simply doing duty As described FCC report fol lowing six violations cited FCC inspectors During course meet fol lowing omissions noted 90 Model Aviation noted 1 No provision kind made measurement emitted frequency violation Section 12135 rules 2 some instances amateur stations operated unlicensed persons licensed amateurs stood simply operated unlicensed persons li censed operator attendance violation Section 1228 rules either case 3 Failure identify amateur station transmitting control signals violation Section 12159 rules 4 Although amateur stations being operated portable stations Olathe KS overall period 48 hours licensees submitted notices portable operation Commissions Engineer Charge Kansas City MO violation Section 1291 rules 5 Several amateur station transmitters observed operating outside signed amateur frequency bands viola tion Sections 12111 12113 rules 6 Little no effort made maintain proper station log violation Section 12136 rules AMA took FCC report Ham radio violations 1948 Nats seriously cautioning its Ham users 50 MHz band RC follow stated FCC regu lations Although several violated rules easily correctible regula tion opinion haunt Ham RC fliers 40 yearsand present day Section 1228 allowed licensed operator Ham voice station hand microphone person wished speak transmit voice via radio prohibited other mode emission such Morse codes on-off signals tones sent anyone other licensed operator impact RC flier Ham operator permitted hand RC control box anyone elseeven own son friendfor steering plane rule still effect today FCC Violations1949 second 1949 letter FCC cited new amateur ra dio violations letter sent AMA directly charged permitting certain unlicensed persons participating 18th National AMA Meet Naval Air Station Olathe KS engage portable operation amateur station W3NPS violation Section 1228 Commissions rules two-page reply FCC must have effective because let offthis time Its possible took considera tion fact Rudder Bug won RC event year doubt Although viewpoint RC modeler some FCC-cited violations might seem like peccadilloes prov able infringements rules effect amateur two-way communication nonvoice signals clearly deci sively illustrated certain FCC rules Ham operation simply incom patible Radio Control modeler practice FCC IMrZT DE DK1n5 recent conference Weahington office Federal C nicatione Ciaioc brought out fact FCC Ie genuinely terested solving unl4ue problem brought about advent radio control flying Urge scale Attending rpreaentlng Academy Dr Qood Chairmen Radio Control Cmaitte CO Wright AMA President Willie C Drown firet Free ideat Academy end Headquartere staff mabere ooweinua Opinion foflowing conference signif icant forward etep usda AMA effort obtain lees strin gent requirements obtaining FCC Uoeue radio control flying leading op conference wee letter received fron Con iniesion calling ettention nuer aeqlem nonconforndty regulaticca wMch observed end reported F C C off ciala attending Rational Meet Olatha diacuesing letter waa specifically requested notice given AMA einbere ell radio operation non-ailitary governmental nature includ radio control flying Ie sub3eat FCC control perti nent regulatiorm must obeyed Whle thie euheot miga well point out Academy hopes obtain relaxation requirement us aay fly radio control oon sense dictate obeying law FCC ot reasonably inpected cooperate us pereiet cooperating witi Thus November 1948 Issue Model Aviation reported AMA FCC held discussions Olathe violations upshot meeting new FCC regulations would required because RC operation specifically covered existing FCC regulations Obviously basic conflict tween FCC AMA viewpoints much RC modeler should reason ably required know apparent FCC philosophy modeler clever enough build tame RC model ought have no trouble passing exami nations obtain Ham license AMA philosophy different same clever modeler ought able build use simple low-powered trans mitter receiver RC having learn skills required communications-oriented radio amateur negotiations between FCC AMA during formative years regulating RC frequencies battle lines drawn around fundamental difference viewFEDERAL COMMUNICATIONS COMM ISSION WASHINGTON 25 DC Septenber 16 1949 TO TUE SECRETARY reply refer 8032 Mr Walter Good W3NPS 9123 Eton Road Silver Spring Maryland Dear Sir Commission has received information its Engineer Charge Kansas City Lljasouri soveral occasions during period July 25 July 30 1949 permitted certain unlicensed persons participating 113th National Academy Llodel Aeronautics Lleet Naval Air Station Olathe Kansas engage portable operation enateur station violation Section 318 Communications Act 1934 amended apd Section 1228 Commissions Rules requested submit ion explanation may have youq matter tfr After Nats 1949 FCC threatened revoke Walt Goods Ham radio license allow ing unlicensed persons operate amateur station three-page reply Walt pre vented happening close call OK FCC allow unlicensed person talk radio station OK allow fly airplane May 1989 91 Radio Control R C enthusiasts have long wanted License-Free band its now equipment VERNON C MACNAIB quarter century has illegal operate radio transmitter license granted Federal Bureau currently FCC Federal Connunicalions Commission law modified June 1949 allow layman Mr John Q Public obtain license operate radio transmitter necessity being examined determine technical bnowledge radio ecen bnowing character International Morse Code Citicens Band plain citicens modrl airplane builders fliers opened June first course ceclaiss definite restrictions because transmis sions must interfere already established licensrd sercicco excerpted follows fr " Regulations governir. . As reported Model Airplane News 1950 Radio Control now Vernon Mac Nabb produced first examination-free sets operation 465 MHz frequency required type-approval tests FCC lab no home-built sets allowed operate Treasslttar aaeptetIs .ttoaatahad R5t, battacta t rlshi point second AMA/FCC meeting1948 Within two weeks after 1948 FCC vio lations letter AMA President-elect C 0 Wright visited Washington DC joined AMA meeting FCC discuss letter Attending AMA Willis Brown first AMA president active Ham Russ Nichols Walt Good chairman AMA RC Com mittee As reported AMA Model Aviation November 30 1948 recent conference Washington office FCC re vealed fact FCC genuinely terested solving unique problems brought about advent Radio Con trol flying large scale positive FCC action resulted AMA/FCC meeting June 1 1949 FCC established first Citizens Radio Service channel RC regulation specified RC flier may use frequency 465 MHz simple Citizen Band type license 465 MHz transmitter must manufactured item type ap proved FCC laboratoryno homebuilt units allowed represented good start FCC recognition modelers need examfree RC operation Some manufacturers thought 465 MHz frequency would too difficult ap ply RC because considered too high radio frequency available technology example vacuum tubes market sufficient quality used receiver small tube six-volt heater-type cath ode drew 300 mAh needed heavy battery give adequate flight life Ive told Nate Rambo used Farmpack brand battery intended radios farm achieve flight time de sired Vernon MacNabb Citizen-Ship Ra dio Corporation bolstered thorough knowledge radio technology compo nents persuaded Idea company Indi anapolis tackle transmitter re ceiver design George Fathauer engineered design help partners Sam Dick Goldstein project took better part year although much time spent FCC laboratories type approval tests made transmitter first rejected FCC because frequency drifted out toler ance temperatures below freezing After problem corrected transmitter returned FCCwhere remained such long time Mac Nabb urged Indiana senator Homer Capehart intervene Capeharts inquir ies disclosed transmitter passed tests paperwork hadnt completed approval certificate arrived three days later just time Gene Foxworthy fly Citizenship 465 MHz gear 1950 RC Natsand win MacNabb still has first RC license 465 MHz issued FCC June 26th 1950 transmitter receiver sold $3995 inexpensive con verted 1988 dollars todays market $3995 price tag would translate over $300 Through recent contacts some pioneering names early years Radio Control learned MacNabb day lives Pompano Beach FL plays golf three times week still flies little RCat 85 years age told paid Idea Company sum $500 total 465 MHz development concept tested production design Gene Foxworthy wife Martha re tired West Virginia still active RC talk weekly Ham ra dios Gene designed first mechanical parts MacNabb gear well doing test flying Goldstein brothers earned PhD physics theyre both professors astronomy University Vir ginia other Cnlifornia Obviously high-powered devel opment team Still FCC RC violations1951 Andrews Field near Washington DC 1951 FCC again alleged improper us age amateur frequency RC again issued warning letters happened CD RC event violation cited spent consider able time conversing FCC inspec torpartly divert him shutting down event before finished flying Al though ploy worked didnt prevent letter reprimand came through later stating RC opera tor must have Ham license However FCC stopped short taking license away thank goodness Participants 1951 Nats RC event came up creative roundabout solu tion operator licensing problem lo cal Ham operated unlicensed RC transmitters holding controls hand pushing buttons re sponse voice commands pilot feasible way completing RC event satisfying local FCC spector hardly satisfactory modelers viewpoint Up time except re cently approved 465 MHz gear Ham frequencies available RC use As abundanfly clear cited examples amateur frequencies still re quired Ham operator license spite awkwardness conform ing Ham operator rules owe much thanks Ham community its contri butions pioneering early RC planes electronics efforts made possi ble non-Ham experimenters join advancing tide development RC Air craft Ross Hull Byron Goodman Clinton DeSoto others ARRL Head quarters staff deserve mention Turning operator question newly acquired 465 MHz RC channel no firm guidelines set forth owner 465 MHz gear al lowable operator controls May owner hand transmitter friend try controls Since Citizens Radio Ser vice rules clear point FCC modified request AMA shortly after 465 MHz came un Continued page 198 92 Model Aviation England past three years 61 49 both suitable model also believe solid 45 Royal OS suit ably de-tuned would plenty power current setup Merco 6155 285 venturi SST silencer 10 holes open no pressure Taffinders 5% nitro PA fuel 114 x 6 Bolly three-blade prop engine has two 020 head gaskets added further soften four-cycle/twocycle break combination gets through pattern using just 3% oz fuel Lines 70 ft 018 cable model weighs 64 oz current trim finish see Sig dopenitrate clear base followed butyrate colorover silkspan wing 56-oz Sig glass cloth epoxy everywhere else am com pletely convinced glass cloth epoxy way go speed strength fuel-proofing stability finish As far can tell light lighter tra ditional dope-and-paper finish have very good results using Loctite Finishing Epoxy cloth stuff sands like chalk leaves very little material plane use dope colors nitrate bonding coat must first applied over epoxy butyrate wont adhere directly epoxy very well usually spray two coats nitrate clear over sanded epoxy-glass surface sand lightly spray filler coat talc nitrate After wet-sanded 400-grit paper spray colors last thought build model again would add another inch inch-and-a-half tail moment length would increase elevators groove leverage would also look scalelike may wish incorpor ate change own T-60 II Fly safe fly quiet contact Don McClave 221 NW 2nd Ave Suite 300 Portland OR 92709 find out can join PAMPA association model Stunt fliers enthusiasts responding advertisers mention read about ModelAviation Frequency Battle/Good Continued page 92 der CRS umbrella Under new regu lation persons other owner would allowed operate RC transmitter owners permission fore stalled possible repetition mis understandings concerning piloting occurred modelers using ama teur radio frequencies frequency home-built RC gear 1949-1952 Gratified though 1949 have 465 MHz frequency ap proved RC use some us felt strongly still worthwhile pursue fre quency allocation simple home-built gear almost three years before FCC handed us victory second fa vorable ruling concerning RC frequency us age permitting home-built gear dispens ing requirement examina tion story achieved C/LNewR/C IHANGERJCATALOG Kits OR Plans I Innovative InexpensiveI Quick & Easy Build rnttttNrrr Ut QUICK & LIVELY SPORT RIPLASIE GREAT FOR SMALL FIELDSOr d e r y o u r s t o d y I gned new ton 074 Queen nee engine $2 ISpecifications Wing Span 26 Wing Area 275 Sq Length 25 Loading 13 02/Sq Ft. Weight 11/2 Lbs I Radio 4Channel micro servos Expeneote aileron trainer qualifies pilot sleek look ing airplane Sinpie durable rectangular 2spar nheeted wings sheeted hon type fonelage nolid tail surf aces pre-cut AAA balsa ply full-sian illustrated plans STANGEL ENTERPRISES conplete instructions hardware package wheels ftc p 0 BOX 336 Ml EAA Ilana $4995 $35O 5kM Plans Only S995cSllO 5kM MEMBERWAUKEIHA W SCONS N 0 8 1336 AMJ 198 Model Aviation K&S METAL CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture f carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises 2540 RIDGE ROAD LANSING ILLINOIS 60438 Phone 312-895-8151 Aluminum/Brass/Copper Tubing & Shapes Music Wire Tos Soldenng Irons Silk Silk Span Finishing Matenals Send 25 br catalog KASigring A017 W ROfli *aat goal follows 27255 MHz frequency desig nated FCC use Industrial Scientific Medical ISM band indus trial controls scientific experiments medical applications such diathermy practice however other users excludedso much frequency known unofficially FCC Garbage Band sensed despite hangers-on already acquired licensing con struction requirements 27255 MHz frequency would minimalif could demonstrate channel would work RC After British modelers using 27 MHz RC since 1946 over three years FCC reluctant consider 27255 MHz RC some proof its work ability USA environment end FCC provided AMA Ex perimental License KG2XDA actual flight tests begin February 1950 July 1950 over 100 flights made Washington DC area oaly two cases apparent interference flight planeand no crashes However unconvinced local tests gave broad enough data spread FCC suggested supplemental flight tests conducted other areas agency extended KG2XDA li cense nine AMA members across USA provided 200 additional flights Most modelers members AMAs first RC Committee covered both RC contest rules frequencies Chairman Walt Good Bethesda MD Clay Freese Chicago IL William Stel mach Ed Rockwood Palo Alto CA Dick Schumacher Van Nuys CA Warren Bartlett Detroit MI Harry Geyer Jim Schenck Pittsburgh PA Ed Lorenz Hyde Park NY midyear 1951 eight 300 tests completed marred glitch es considered reason able proof satisfactory RC operation 27255 MHz test Warren Bartlett tentionally flew near hospital using diathermy equipment 27 MHz frequency established 1000 ft too close causing glitches plane mile proved adequately safe distance showing no interference experimental radio gear homemade modelers using crystal control less five watts some cases modified 52MHz RC rigs formerly used Ham RCers Stepping back early 1951 over 200 flights completed felt time FCC engineers being much too conservative asking test flights much too slow getting started drafting some simple 27 MHz rules discussed situation lunching Dave Rabenhorst John Hopkins Lab both worked As both mod eler engineer clearly understood picture Any suggestions Dave asked said yes recommending go higher FCC organization speak di rectly seven FCC commis sioners final voters FCC ac tions Note FCC established Congress 1934 seven com missioners appointed US Presi PLAIN CRADLE-2 AlsoPurchase local hobby shop order direct~tet0 j3 Completely Fusiproof 6 Wide Fuselage Unbreakable es Flat Perfect Field Shop Same Day Shipping Nest eetIefIe return unused lt fuN refund Marty BerrSend $1796 plus $200 shipping handling 94 Stonefield Trail South Windsor CT 06074114 end 113 Scale Sizes 5 plus $200 S & H Want go vertical flintjet Series 04 ikytank FOf Tile shark sill allon jetlike performnc whO nor hassle ducted k5 enpens Both kits balsa cuounractios nit h spar wings y can act ommoda te standard mini nero o h channel radi nsyntens nih accept 20 2y nine engines noceptinna pyrforsancesset 21 25 rear en haunt enginen Thy ik uomesbmt docile inapt spea ds ki tnare mediate flyer ie offer plans canopies forA-4 SkyhewkF-20 Tigeraherk uisb airatch build Shifi Plans3k slug uput3k0000 soun Canopy $1000 Flawn only 400 sq area 330 sq area Other products available Poel Isjeitinn lireus 3f tenath 30 length Fans lain ginard Pnpes Insonatuon flodel Pro$4500 s/fl$4000 S/f doctu 1111 Isis B Plans Send check Money Order coo add $3- FL flea add 6% sales tax3055814477 PARRISH AIRCRAFT & Scale Models 1125 SW 49th Tar. 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$IC 5K20 $K720 fans $CDF-t $1996 Navy P40-i Skyray 1% e ength ing span 10 lbs oh $IC actible landing anar $CDF-2 6 Sill EPlinger Feandine Menebee AMA 14PF5 Hall Fame Prices lot conrpleea plans sub assanebly detailed parts lists Add $200 tee MaIlIng Tuba SeedIer brechura ahead crowd new broobere showing new Plan Sets 1989 Seed $1 etondable yost 1st order1 WE TECHNICAL SERVICES PO Box 76884-A Atlanta GA 30328 dent Sounds great DaveHow get speak Well said stepfather Sen ator Charles Tobey New Hampshire Im sure can arrange upon Dave stepped phone called senators office turned asked want appointment commissioner afternoon morrow decided tomorrow meeting FCC Commissioner George Sterling spring 1951 turning point acquisition 27255 MHz frequency RC As fellow DCRC member Carl Cessna walked down hall commis sioners office FCC staff members gawked RC plane toting Sterling gracious understanding probably because quickly learned active Ham operator since 1912 understood technical radio pects ease knowledge FCC commissioner hold Ham license Most appointees politically affiliated connected radio broadcast industry both As side note Ive just read QST Amateur Radio Journal January 1988 Sterling WlAE remains active Ham home Maine today five Hams got licenses 1912 still active today After carefully examining planes RC gear listening report AMAs flight test program 27255 MHz Sterling responded one-page sum mary proposal pushing FCC staff response posi tive believe reasonable plan maybe restrictive neces SUPER DELUXE PRE-BUILT KITR 1 Carbon Fiber reinforced Epoxy Glass Fuselage• 2 FACTORY SHEETED Carbon Fiber reinforced Ultralight Honeycomb Plug-in Wingrr 3 FACTORY SHEETED adjustable 8 removable stab 4 Tn conventional retract 5 Pre-cut firewallOnly AVAILABLE IN BASIC KIT ONLY $1Length-6067$450 Carbon Fiber Reinforced Fuselage Wing Area- 700 sq Latest Japanese Pattern Design n byWegi 775 850 bs Top Japanese Pilot able FAI AMAEttg ye 0cc Please add $15 shippingPATTERN TEK 1408298 0311 will happy pass along favorable recommendations Shortly thereafter AMA received preliminary draft rule-making Docket #10086 modified clude 27255 MHz frequency RC course AMA commented favorably Simple RC rules arrive1952 Novem ber 1951 final proposal rule-making Docket #10086 appeared amend ment Part 19 Rules Citizens Ra dio Service included AMA plan adopting 27255 MHz frequency RC Since no objections received FCC regulation became official March 24 1952 long struggle AMA finally won approval first homebuilt RC frequency following regulations applied new Class C stations 1 Frequency27255 MHz crystal control assure accuracy 2 Powerfive watts maximum 3 Emissionson/off carrier tone mod ulation 4 Type approval required crystal-controlled transmitters Thus homebuilt gear OK 5 license simple FCC Form 505 flier sends nearest FCC fice No exams required After five years effort part AMA FCC March 24 1952 great day indeed About month after 27255 MHz fre quency made available received letter FCC Commissioner Sterling enclosed clipping Washington Evening Star newspaper about Reginald Denny well-known movie star produced RC target drones US military during WW II Denny now proposing use radio equipment RC model fliers According clip ping Denny approached FCC .. turned down cold Exactly never found out note attached clipping FCC responding advertisers mention read about Model Aviation 200 Model Aviation ZAP UNIVERSITY COLLEGE OF GLUE KNOWLEDGE ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX AH Designs47 AMA Membership65 Academy Aviation R&D10 Ace Radio Control9 Aerodrome Models188 Aerospace Composite Prod43 Airtronics6-7 AI-tec Su-pr-Line Prod180 Altech Marketing179 181 183 American Jr Aircraft Co22 American Sailplane Des66 Astro Flight15 Authorized RC Service57 B&P Associates47 Quay Barber Models170 Berkeley Trading Co178 Marty Berr156 199 Blue Ridge Mach & Tools171 Blue Sky Enterprises169 Bolar Heli Research173 Dave Brown Products41 Byron Originals95 104 Campbell Tools Co173 Campbells Custom Kits166 Circus Hobbies186-188 Cleveland Model Supply16 Colorado Model Products8 Composite Aircraft Eng49 CompuServe175 Control Systems Labs161 Coverite1 63 Cox Hobbies101 Crenshaw Aero176 Culpepper Models Inc49 DGA Designs67 D&R Aircraft Mfg156 Davey Systems Corp157 Tom Dixon190 Dodgson Designs166 Doylejet171 Du-Bro Products Inc38 55 198 Elden-Ken Electronics197 FAI Model Supply189 FHS Supply Inc5 Fiberglass Master53 Fiorenze Hobby Center173 First US RC Flight School197 Flights Fancy Aeromodel174 Florlo Flyer177 Flyline Models197 Fourmost Products51 Fox Mfg Co162 Fults Dual Struts22 Futaba Corp America21 204 G&A Products51 GM Precision Products66 Gas Model Products189 Gator RC Products64 Carl Goldberg Models96 203 Gorham Model Products12 Paul K Guillow Inc174 Hi Performance Sailplanes173 High Performance Models55 High Sky67 Hobby Barn154-155 Hobby Dynamics111 114 Hobby Horn18 Hobby Lobby International17 Hobby Shirts & Hats197 Hobby Woods57 MS Atlanta184 Ikon Northwest Co39 Indy RC Sales Inc158-160 InVenture180 JR Radios111 114 JTec170 Jan Crystals18 Larry Jolly Model Products156 Jomar20 22 KD Grapphics42 K&B Mfg177 K&S Engineering198 K W Enterprises171 Kingsway Enterprises196 Kircher RC Products169 Kraft Midwest166 Kustom Kraftsmanship172 Kyosho185 Leisure Electronics163 Lone Star Models167 MACS Products64 MARC Show173 Memphis Model Market168 Jim Messers172 Micro Mark34-35 Midwest Products23 Model Rectifier Corp . Coy 2&3 819 Sid Morgan Plans182 Walt Moucha Models16 Mutchlers Hobbies164-165 NF Video Library42 NEPRO176 Nayco Co20 North Products169 Northeast Aerodynamics4 PacerTech12182191200 Paper Airplanes Intl172 Parrish Aircraft199 Pattern Tek200 John Peck Leisure Prod176 Pelican Enterprises198 Penn Valley Hobby Center169 Performance Hobbies176 Performance Products Ultd190 Perkins Avionics41 Phillips Aircraft Co182 Pica Products10 Planes & Things170 Polks Hobby Pot OGold169 Progress Mfg Co177 Pro-Tune Corp168 RB Bunch57 RC Buyers Guide22 RC Extras190 RJL Industries 66 Ragan/Barker Group47 Red Max Fuel5 Reynolds Jewelry181 Robart39 Robbe Model Sport11 Roun Tuit ..196 SAC66 SR Batteries153 Safety Plus16 53 Satellite City13 Scale Model Research171 Scale Plans & Photo Ser169 Sermos RC Snap Connectors64 Shamrock Competition Imports 9 Sheldons Hobby Shop20 Sig Mfg Co4 109 191 Skyline Hobby Mfg. Bob Smith Industries4 49 Square Cut Tools51 Stangel Enterprises198 Sullivan Iroducts102-103 Sunshine Hobbies67 Superior Aircraft174 Swanson Assoc20 Tatone Products Co178 Tidewater Hobby Enterprises161 Toledo RC Exposition171 Top Flite Models Inc113 Tower Hobbies192-195 Trader Jacks Buy Sell55 Tru-Turn189 VL Products67 Vinylwrite Custom Lettering64 WE Technical Services200 Williams Brothers53 Windsor Propeller Co43 Wing Mfg Co178 World EnginesCover 4 Nick Ziroli Models196 ZZ Enterprises57 Commissioner Sterling wrote Dr Good has fellow Denny Thats what call first-rate commis sioner modelers owe Sterling great debt successful outcome First Battle encouraging 1952 ac quired two RC channels 465 MHz 27255 MHz well simple no-exam permits just what wanted beginning EAA/Wischers Continued page 108 temperatures days Besides water demand high two survi val items heat humiditydeli ciously top-heavy soft serve cones May 1989 201
Edition: Model Aviation - 1989/05
Page Numbers: 88, 89, 90, 91, 92, 198, 199, 200, 201
Battle RC Frequencies now almost seems like right American switch RC transmitter fly plane hearts content its Its privilege right fought long hard modeling predeces sors over 40 years ago Part three-part series U Walt Good HOW WOULD like fly Radio Con trol AMA Nationals upon arrival discover 268 RC contes tantswith over 200 fre quency situationat 1958 Nats Chicagovividly illustrates painful steps AMA encountered its struggle obtain RC channels rap idly growing family RC fliers story early years fly ing RC frequencies battles fought obtain first RC chan nels FCC Over span 40 years Academy Model Aeronautics has en gaged least six confrontations Federal Communications Commission ac quire new RC channels protect channels already gained Equally impor tant fliers needed channels did require examinations licensing first battle begins acquisition single examination-free RC frequency last skirmish wont over until AMA has achieved its long-term goal gaining 80 exclusive RC channels Please note personal report based viewed events active participant almost phase por trayed story hope accurate its undoubtedly limited weakening memory hundreds ragged incom plete files gladly leave task filling gaps other generous souls participated efforts First look earliest beginnings 88 Model Aviation 4 authors twin brother Bill 1937-vintage transmitter Power output 100 watts note two big tubes An AC power cord runs outlet inside hangar author 1938 RC Guff model Note open side door revealing receiver relay Single-channel control rudder done using rubber-powered escapement THE EVENING STAR WMhJngton D CA-iSFEDERAL COMMUNICATIONS COMMISSION WEOSEODAY APRIL U 5952 Denny Envisions Radio Co -I es FutureFrom CEO E STERLING perfectly poHible soi recelvero thatCommissioner today model plane fans fly could get cost dow____________________________________________________________[v32][b2125429121100]] about 824 TheRemarks theIr creations radIo control mltters would much exAQA/Je Instead cIrcling wIre pensIve about $180 r ' tether planned sell ThIs Informed opln- clubs members Informed opIn can c wIth transmItters whlIIAJ0A Ion Iteginald ontrol plane Denny star d take five radio chan % stage andneis operate transmitter... screen Mr rudder control nyelevators etc took it1 i e about radioup Federal Communca 8 controlledtlons CommissIon tuinedF j down cold 11i models In-- vented Today Infinite numberl4 used , ultra high frequency channels e tar- available radIo con F Competition among builders IdAUINGOON 0 0 get practice tolled plane event meet ~ h ~runer planes has made pos guided - wd FCC has alIf D07aictemporary use 21251 possible new departuref. described megacycle wave band dem . model builders asa utopia could 1send planes fsr eyep ould see bF-be Above Reginald Denny movie star developer RC target drones during WW ii proposed FCC establish frequencies hobby RC planes Mr Denny claimed turned him down cold George Sterling figures apparently didnt know new 27255 MHz RC channel gone effect month earlier Below left L-R Walt Good Reginald Denny Bud Chapman lunching Paramount Studios 1938 Walt telling Denny about hobby RC planes Bud 1938 California Free Flight Gas Model Champ listens As FF Gas winners Walt Bud got airplane trips Hollywood tour Paramount Studios promoting movie Men Wings Right Walt Good Dorothy Lamour showboat set St Louis Blues Bud Walt parts movie extras grandstand audience scene Pre-World War W II RC Contests 19371941 Lets step back years just prior WW II see early RC fliers ac quired frequencies fly 1937 Nats Detroit first Nats RC event held RC pilots used amateur radio frequenciesprimarily 56 60 MHz six Nats entries acquired necessary amateur Ham licenses partners done transmitter signed air license holder sending call sign Morse code before flight signed off after flight During actual flight model builder part team used control buttons steer plane Legally speaking non-Ham al lowed operate transmitter overlooked days stories subject later Thus five RC Nats held 1937 through 1941 Ham frequencies used exclusively World War II shut down amateur radio en tirely 1942 1946 Ham transmit ters disabledas Radio Control hobby erstwhile RC hobbyists engaged military service work ing days nights weekends confiden tial hush-hush projects Uncle Sam After World War II 1946-1952 im mediate postwar years RC event re vived 1946 AMA Nats Wichita KS five RC entries year pilots flew great enthusi asm Again amateur radio frequencies used FCC shifted prewar 56-60 MHz band 50-54 MHz after war regulatory body still required Ham li cense obtain such license pass code test electronics test test radio regulationsnot easy task modeler wanted simple radio equipment simple radio license What RC hobbyists needed able obtain license exclusively RC flying examination Examination-free RC frequencies 1946 British modelers led way May 1989 89 RC competitions rorooo o 4p tosuoi 04oi, hr rho itoi ho nrrdI cidre Thr chip drrrol heir hop crc o ocrirroir crc ii Verrirerit IrrrloOotert cor hiro lrrrorvrry. rr horroorrrrl 004cr errilo C rrrrrrrlrtOricP C cirriricod rrrrroirrr arid Irrophr thrirt irk pp Vrorr itrrrirrit Iii di irk ni rkiirl ii irl hip diii hirk iii -A dli icud urrililii rrrurorr ii1 0did ii crc C CI cr Cc rIpohd iiirc l-I ivr crriiu i i1 As appeared July 1937 issue QST Ross Hull Byron Goodman assemble 13-fl RC Glider West Hartford CT along Clinton DeSoto staff QST amateur radio magazine introduced RO hobby radio amateurs securing examination-free RC license 27 MHz 460 MHz done means simple exchange let ters between D W Allen Society Model Aero Engineers British counter part AMA British Post fice represented Engineer-in-Chief Radio Branch Mr C E Clarke Mr Clarkes short reply Allen dated November 8 1946 sanctioned follow ing frequencies RC model use Britain Frequency #14605 MHz within Hz Frequency #22766-28 MHz Additional specifications Clarkes let ter follows Maximum input power five watts No special license required Use equipment RC communication Modelers US felt optimistic British could obtain RC frequencies quickly expected little no delay se curing similar response Federal Communications Commission FCC Un fortunately wrong Several years pass before obtained similar RC use frequencies America First Battle RC Frequencies 1946 living Washington DC 1946 Russ Nichols executive diFEDERAL COMMUNICATIONS COMMISSION WASHINGTON 25 DC November 4 1948 ARORESS ALL COMMUNICATIONS reply refer 6104 Loademy Model Lsronautics l03 Conxeoticut Lvenue NW Washington 6 D 0 Gentlemen Observation made during National Model Airoraft Meet Naval Air Station Olathe Kansas August 4 8 1948 inclusive revealed number ireg1slarities oomneo tion use 01 amateur stations purpose remotely controlling model aircraft radio intended t oitationa will jasued instance However 1l appreciated organization calls attention members foflowing omissions appear quit prevalent airt emphasizes amat eur stations operated purpose applicable rules should adhered Thzring course Meet foflowing omissions As result FCC inspectors report AMA received letter FCC outlining violations committed RC contestants 1948 Nationals held Olathe KS rector AMA immediately dis cussed modelers RC frequency needs him Having worked several gov eminent agencies before joining AMA Russ familiar some proce dures suggested arrange visit Federal Communications Commis sion discuss matter RC frequencies face-to-face January 1947 letter FCC AMA ouflined its RC airplane needs fashion similar British SMAE letter requested exploratory meeting first meeting held April 30 1947 Eight FCC engineers representing seven FCC departments attended Russ representing AMA pos itive result FCC suggestion newly contemplated Citizens Radio Service might able offer channel RC Af ter several visits FCC personnel year Russ thought making some progressalthough still ob tained no RC frequencies 1947 Nats Minneapolis seven RC entries number suc cessful flights RC planes growing up However still using Ham fre quencies concomitant requirement amateur license just gotten Ham license after three attempts months pass code test must admit thing hurt watching 10year-old kid zip through code test first try As consolation finished writ ten parts electronics regulations exams before did Follow-up meetings between FCC AMA discuss simple no exam RC frequencies equally unproductive 1948 drew close still achieved nothing tangible Admittedly bit slow learning deal FCCs bureaucratic system however about get some action RC modelers charged FCC viola tions1948 1948 Nats August Olathe KS saw 14 RC entries demon strated numerous flights also scored first FCC observers appeared Nats showed interest RC event expressed concern AMA November 1948 letter detailing number violations FCC regulations through improper use amateur sta tions no citations made against Ham operators time FCC dicated might future ci tation type could result withdrawal Hams license FCC finally gotten FCCs attention respect RC planes frequen cies Ironically wasnt sort atten tion hoped FCC observers learned later inspectors local field office simply doing duty As described FCC report fol lowing six violations cited FCC inspectors During course meet fol lowing omissions noted 90 Model Aviation noted 1 No provision kind made measurement emitted frequency violation Section 12135 rules 2 some instances amateur stations operated unlicensed persons licensed amateurs stood simply operated unlicensed persons li censed operator attendance violation Section 1228 rules either case 3 Failure identify amateur station transmitting control signals violation Section 12159 rules 4 Although amateur stations being operated portable stations Olathe KS overall period 48 hours licensees submitted notices portable operation Commissions Engineer Charge Kansas City MO violation Section 1291 rules 5 Several amateur station transmitters observed operating outside signed amateur frequency bands viola tion Sections 12111 12113 rules 6 Little no effort made maintain proper station log violation Section 12136 rules AMA took FCC report Ham radio violations 1948 Nats seriously cautioning its Ham users 50 MHz band RC follow stated FCC regu lations Although several violated rules easily correctible regula tion opinion haunt Ham RC fliers 40 yearsand present day Section 1228 allowed licensed operator Ham voice station hand microphone person wished speak transmit voice via radio prohibited other mode emission such Morse codes on-off signals tones sent anyone other licensed operator impact RC flier Ham operator permitted hand RC control box anyone elseeven own son friendfor steering plane rule still effect today FCC Violations1949 second 1949 letter FCC cited new amateur ra dio violations letter sent AMA directly charged permitting certain unlicensed persons participating 18th National AMA Meet Naval Air Station Olathe KS engage portable operation amateur station W3NPS violation Section 1228 Commissions rules two-page reply FCC must have effective because let offthis time Its possible took considera tion fact Rudder Bug won RC event year doubt Although viewpoint RC modeler some FCC-cited violations might seem like peccadilloes prov able infringements rules effect amateur two-way communication nonvoice signals clearly deci sively illustrated certain FCC rules Ham operation simply incom patible Radio Control modeler practice FCC IMrZT DE DK1n5 recent conference Weahington office Federal C nicatione Ciaioc brought out fact FCC Ie genuinely terested solving unl4ue problem brought about advent radio control flying Urge scale Attending rpreaentlng Academy Dr Qood Chairmen Radio Control Cmaitte CO Wright AMA President Willie C Drown firet Free ideat Academy end Headquartere staff mabere ooweinua Opinion foflowing conference signif icant forward etep usda AMA effort obtain lees strin gent requirements obtaining FCC Uoeue radio control flying leading op conference wee letter received fron Con iniesion calling ettention nuer aeqlem nonconforndty regulaticca wMch observed end reported F C C off ciala attending Rational Meet Olatha diacuesing letter waa specifically requested notice given AMA einbere ell radio operation non-ailitary governmental nature includ radio control flying Ie sub3eat FCC control perti nent regulatiorm must obeyed Whle thie euheot miga well point out Academy hopes obtain relaxation requirement us aay fly radio control oon sense dictate obeying law FCC ot reasonably inpected cooperate us pereiet cooperating witi Thus November 1948 Issue Model Aviation reported AMA FCC held discussions Olathe violations upshot meeting new FCC regulations would required because RC operation specifically covered existing FCC regulations Obviously basic conflict tween FCC AMA viewpoints much RC modeler should reason ably required know apparent FCC philosophy modeler clever enough build tame RC model ought have no trouble passing exami nations obtain Ham license AMA philosophy different same clever modeler ought able build use simple low-powered trans mitter receiver RC having learn skills required communications-oriented radio amateur negotiations between FCC AMA during formative years regulating RC frequencies battle lines drawn around fundamental difference viewFEDERAL COMMUNICATIONS COMM ISSION WASHINGTON 25 DC Septenber 16 1949 TO TUE SECRETARY reply refer 8032 Mr Walter Good W3NPS 9123 Eton Road Silver Spring Maryland Dear Sir Commission has received information its Engineer Charge Kansas City Lljasouri soveral occasions during period July 25 July 30 1949 permitted certain unlicensed persons participating 113th National Academy Llodel Aeronautics Lleet Naval Air Station Olathe Kansas engage portable operation enateur station violation Section 318 Communications Act 1934 amended apd Section 1228 Commissions Rules requested submit ion explanation may have youq matter tfr After Nats 1949 FCC threatened revoke Walt Goods Ham radio license allow ing unlicensed persons operate amateur station three-page reply Walt pre vented happening close call OK FCC allow unlicensed person talk radio station OK allow fly airplane May 1989 91 Radio Control R C enthusiasts have long wanted License-Free band its now equipment VERNON C MACNAIB quarter century has illegal operate radio transmitter license granted Federal Bureau currently FCC Federal Connunicalions Commission law modified June 1949 allow layman Mr John Q Public obtain license operate radio transmitter necessity being examined determine technical bnowledge radio ecen bnowing character International Morse Code Citicens Band plain citicens modrl airplane builders fliers opened June first course ceclaiss definite restrictions because transmis sions must interfere already established licensrd sercicco excerpted follows fr " Regulations governir. . As reported Model Airplane News 1950 Radio Control now Vernon Mac Nabb produced first examination-free sets operation 465 MHz frequency required type-approval tests FCC lab no home-built sets allowed operate Treasslttar aaeptetIs .ttoaatahad R5t, battacta t rlshi point second AMA/FCC meeting1948 Within two weeks after 1948 FCC vio lations letter AMA President-elect C 0 Wright visited Washington DC joined AMA meeting FCC discuss letter Attending AMA Willis Brown first AMA president active Ham Russ Nichols Walt Good chairman AMA RC Com mittee As reported AMA Model Aviation November 30 1948 recent conference Washington office FCC re vealed fact FCC genuinely terested solving unique problems brought about advent Radio Con trol flying large scale positive FCC action resulted AMA/FCC meeting June 1 1949 FCC established first Citizens Radio Service channel RC regulation specified RC flier may use frequency 465 MHz simple Citizen Band type license 465 MHz transmitter must manufactured item type ap proved FCC laboratoryno homebuilt units allowed represented good start FCC recognition modelers need examfree RC operation Some manufacturers thought 465 MHz frequency would too difficult ap ply RC because considered too high radio frequency available technology example vacuum tubes market sufficient quality used receiver small tube six-volt heater-type cath ode drew 300 mAh needed heavy battery give adequate flight life Ive told Nate Rambo used Farmpack brand battery intended radios farm achieve flight time de sired Vernon MacNabb Citizen-Ship Ra dio Corporation bolstered thorough knowledge radio technology compo nents persuaded Idea company Indi anapolis tackle transmitter re ceiver design George Fathauer engineered design help partners Sam Dick Goldstein project took better part year although much time spent FCC laboratories type approval tests made transmitter first rejected FCC because frequency drifted out toler ance temperatures below freezing After problem corrected transmitter returned FCCwhere remained such long time Mac Nabb urged Indiana senator Homer Capehart intervene Capeharts inquir ies disclosed transmitter passed tests paperwork hadnt completed approval certificate arrived three days later just time Gene Foxworthy fly Citizenship 465 MHz gear 1950 RC Natsand win MacNabb still has first RC license 465 MHz issued FCC June 26th 1950 transmitter receiver sold $3995 inexpensive con verted 1988 dollars todays market $3995 price tag would translate over $300 Through recent contacts some pioneering names early years Radio Control learned MacNabb day lives Pompano Beach FL plays golf three times week still flies little RCat 85 years age told paid Idea Company sum $500 total 465 MHz development concept tested production design Gene Foxworthy wife Martha re tired West Virginia still active RC talk weekly Ham ra dios Gene designed first mechanical parts MacNabb gear well doing test flying Goldstein brothers earned PhD physics theyre both professors astronomy University Vir ginia other Cnlifornia Obviously high-powered devel opment team Still FCC RC violations1951 Andrews Field near Washington DC 1951 FCC again alleged improper us age amateur frequency RC again issued warning letters happened CD RC event violation cited spent consider able time conversing FCC inspec torpartly divert him shutting down event before finished flying Al though ploy worked didnt prevent letter reprimand came through later stating RC opera tor must have Ham license However FCC stopped short taking license away thank goodness Participants 1951 Nats RC event came up creative roundabout solu tion operator licensing problem lo cal Ham operated unlicensed RC transmitters holding controls hand pushing buttons re sponse voice commands pilot feasible way completing RC event satisfying local FCC spector hardly satisfactory modelers viewpoint Up time except re cently approved 465 MHz gear Ham frequencies available RC use As abundanfly clear cited examples amateur frequencies still re quired Ham operator license spite awkwardness conform ing Ham operator rules owe much thanks Ham community its contri butions pioneering early RC planes electronics efforts made possi ble non-Ham experimenters join advancing tide development RC Air craft Ross Hull Byron Goodman Clinton DeSoto others ARRL Head quarters staff deserve mention Turning operator question newly acquired 465 MHz RC channel no firm guidelines set forth owner 465 MHz gear al lowable operator controls May owner hand transmitter friend try controls Since Citizens Radio Ser vice rules clear point FCC modified request AMA shortly after 465 MHz came un Continued page 198 92 Model Aviation England past three years 61 49 both suitable model also believe solid 45 Royal OS suit ably de-tuned would plenty power current setup Merco 6155 285 venturi SST silencer 10 holes open no pressure Taffinders 5% nitro PA fuel 114 x 6 Bolly three-blade prop engine has two 020 head gaskets added further soften four-cycle/twocycle break combination gets through pattern using just 3% oz fuel Lines 70 ft 018 cable model weighs 64 oz current trim finish see Sig dopenitrate clear base followed butyrate colorover silkspan wing 56-oz Sig glass cloth epoxy everywhere else am com pletely convinced glass cloth epoxy way go speed strength fuel-proofing stability finish As far can tell light lighter tra ditional dope-and-paper finish have very good results using Loctite Finishing Epoxy cloth stuff sands like chalk leaves very little material plane use dope colors nitrate bonding coat must first applied over epoxy butyrate wont adhere directly epoxy very well usually spray two coats nitrate clear over sanded epoxy-glass surface sand lightly spray filler coat talc nitrate After wet-sanded 400-grit paper spray colors last thought build model again would add another inch inch-and-a-half tail moment length would increase elevators groove leverage would also look scalelike may wish incorpor ate change own T-60 II Fly safe fly quiet contact Don McClave 221 NW 2nd Ave Suite 300 Portland OR 92709 find out can join PAMPA association model Stunt fliers enthusiasts responding advertisers mention read about ModelAviation Frequency Battle/Good Continued page 92 der CRS umbrella Under new regu lation persons other owner would allowed operate RC transmitter owners permission fore stalled possible repetition mis understandings concerning piloting occurred modelers using ama teur radio frequencies frequency home-built RC gear 1949-1952 Gratified though 1949 have 465 MHz frequency ap proved RC use some us felt strongly still worthwhile pursue fre quency allocation simple home-built gear almost three years before FCC handed us victory second fa vorable ruling concerning RC frequency us age permitting home-built gear dispens ing requirement examina tion story achieved C/LNewR/C IHANGERJCATALOG Kits OR Plans I Innovative InexpensiveI Quick & Easy Build rnttttNrrr Ut QUICK & LIVELY SPORT RIPLASIE GREAT FOR SMALL FIELDSOr d e r y o u r s t o d y I gned new ton 074 Queen nee engine $2 ISpecifications Wing Span 26 Wing Area 275 Sq Length 25 Loading 13 02/Sq Ft. Weight 11/2 Lbs I Radio 4Channel micro servos Expeneote aileron trainer qualifies pilot sleek look ing airplane Sinpie durable rectangular 2spar nheeted wings sheeted hon type fonelage nolid tail surf aces pre-cut AAA balsa ply full-sian illustrated plans STANGEL ENTERPRISES conplete instructions hardware package wheels ftc p 0 BOX 336 Ml EAA Ilana $4995 $35O 5kM Plans Only S995cSllO 5kM MEMBERWAUKEIHA W SCONS N 0 8 1336 AMJ 198 Model Aviation K&S METAL CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture f carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises 2540 RIDGE ROAD LANSING ILLINOIS 60438 Phone 312-895-8151 Aluminum/Brass/Copper Tubing & Shapes Music Wire Tos Soldenng Irons Silk Silk Span Finishing Matenals Send 25 br catalog KASigring A017 W ROfli *aat goal follows 27255 MHz frequency desig nated FCC use Industrial Scientific Medical ISM band indus trial controls scientific experiments medical applications such diathermy practice however other users excludedso much frequency known unofficially FCC Garbage Band sensed despite hangers-on already acquired licensing con struction requirements 27255 MHz frequency would minimalif could demonstrate channel would work RC After British modelers using 27 MHz RC since 1946 over three years FCC reluctant consider 27255 MHz RC some proof its work ability USA environment end FCC provided AMA Ex perimental License KG2XDA actual flight tests begin February 1950 July 1950 over 100 flights made Washington DC area oaly two cases apparent interference flight planeand no crashes However unconvinced local tests gave broad enough data spread FCC suggested supplemental flight tests conducted other areas agency extended KG2XDA li cense nine AMA members across USA provided 200 additional flights Most modelers members AMAs first RC Committee covered both RC contest rules frequencies Chairman Walt Good Bethesda MD Clay Freese Chicago IL William Stel mach Ed Rockwood Palo Alto CA Dick Schumacher Van Nuys CA Warren Bartlett Detroit MI Harry Geyer Jim Schenck Pittsburgh PA Ed Lorenz Hyde Park NY midyear 1951 eight 300 tests completed marred glitch es considered reason able proof satisfactory RC operation 27255 MHz test Warren Bartlett tentionally flew near hospital using diathermy equipment 27 MHz frequency established 1000 ft too close causing glitches plane mile proved adequately safe distance showing no interference experimental radio gear homemade modelers using crystal control less five watts some cases modified 52MHz RC rigs formerly used Ham RCers Stepping back early 1951 over 200 flights completed felt time FCC engineers being much too conservative asking test flights much too slow getting started drafting some simple 27 MHz rules discussed situation lunching Dave Rabenhorst John Hopkins Lab both worked As both mod eler engineer clearly understood picture Any suggestions Dave asked said yes recommending go higher FCC organization speak di rectly seven FCC commis sioners final voters FCC ac tions Note FCC established Congress 1934 seven com missioners appointed US Presi PLAIN CRADLE-2 AlsoPurchase local hobby shop order direct~tet0 j3 Completely Fusiproof 6 Wide Fuselage Unbreakable es Flat Perfect Field Shop Same Day Shipping Nest eetIefIe return unused lt fuN refund Marty BerrSend $1796 plus $200 shipping handling 94 Stonefield Trail South Windsor CT 06074114 end 113 Scale Sizes 5 plus $200 S & H Want go vertical flintjet Series 04 ikytank FOf Tile shark sill allon jetlike performnc whO nor hassle ducted k5 enpens Both kits balsa cuounractios nit h spar wings y can act ommoda te standard mini nero o h channel radi nsyntens nih accept 20 2y nine engines noceptinna pyrforsancesset 21 25 rear en haunt enginen Thy ik uomesbmt docile inapt spea ds ki tnare mediate flyer ie offer plans canopies forA-4 SkyhewkF-20 Tigeraherk uisb airatch build Shifi Plans3k slug uput3k0000 soun Canopy $1000 Flawn only 400 sq area 330 sq area Other products available Poel Isjeitinn lireus 3f tenath 30 length Fans lain ginard Pnpes Insonatuon flodel Pro$4500 s/fl$4000 S/f doctu 1111 Isis B Plans Send check Money Order coo add $3- FL flea add 6% sales tax3055814477 PARRISH AIRCRAFT & Scale Models 1125 SW 49th Tar. 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$IC 5K20 $K720 fans $CDF-t $1996 Navy P40-i Skyray 1% e ength ing span 10 lbs oh $IC actible landing anar $CDF-2 6 Sill EPlinger Feandine Menebee AMA 14PF5 Hall Fame Prices lot conrpleea plans sub assanebly detailed parts lists Add $200 tee MaIlIng Tuba SeedIer brechura ahead crowd new broobere showing new Plan Sets 1989 Seed $1 etondable yost 1st order1 WE TECHNICAL SERVICES PO Box 76884-A Atlanta GA 30328 dent Sounds great DaveHow get speak Well said stepfather Sen ator Charles Tobey New Hampshire Im sure can arrange upon Dave stepped phone called senators office turned asked want appointment commissioner afternoon morrow decided tomorrow meeting FCC Commissioner George Sterling spring 1951 turning point acquisition 27255 MHz frequency RC As fellow DCRC member Carl Cessna walked down hall commis sioners office FCC staff members gawked RC plane toting Sterling gracious understanding probably because quickly learned active Ham operator since 1912 understood technical radio pects ease knowledge FCC commissioner hold Ham license Most appointees politically affiliated connected radio broadcast industry both As side note Ive just read QST Amateur Radio Journal January 1988 Sterling WlAE remains active Ham home Maine today five Hams got licenses 1912 still active today After carefully examining planes RC gear listening report AMAs flight test program 27255 MHz Sterling responded one-page sum mary proposal pushing FCC staff response posi tive believe reasonable plan maybe restrictive neces SUPER DELUXE PRE-BUILT KITR 1 Carbon Fiber reinforced Epoxy Glass Fuselage• 2 FACTORY SHEETED Carbon Fiber reinforced Ultralight Honeycomb Plug-in Wingrr 3 FACTORY SHEETED adjustable 8 removable stab 4 Tn conventional retract 5 Pre-cut firewallOnly AVAILABLE IN BASIC KIT ONLY $1Length-6067$450 Carbon Fiber Reinforced Fuselage Wing Area- 700 sq Latest Japanese Pattern Design n byWegi 775 850 bs Top Japanese Pilot able FAI AMAEttg ye 0cc Please add $15 shippingPATTERN TEK 1408298 0311 will happy pass along favorable recommendations Shortly thereafter AMA received preliminary draft rule-making Docket #10086 modified clude 27255 MHz frequency RC course AMA commented favorably Simple RC rules arrive1952 Novem ber 1951 final proposal rule-making Docket #10086 appeared amend ment Part 19 Rules Citizens Ra dio Service included AMA plan adopting 27255 MHz frequency RC Since no objections received FCC regulation became official March 24 1952 long struggle AMA finally won approval first homebuilt RC frequency following regulations applied new Class C stations 1 Frequency27255 MHz crystal control assure accuracy 2 Powerfive watts maximum 3 Emissionson/off carrier tone mod ulation 4 Type approval required crystal-controlled transmitters Thus homebuilt gear OK 5 license simple FCC Form 505 flier sends nearest FCC fice No exams required After five years effort part AMA FCC March 24 1952 great day indeed About month after 27255 MHz fre quency made available received letter FCC Commissioner Sterling enclosed clipping Washington Evening Star newspaper about Reginald Denny well-known movie star produced RC target drones US military during WW II Denny now proposing use radio equipment RC model fliers According clip ping Denny approached FCC .. turned down cold Exactly never found out note attached clipping FCC responding advertisers mention read about Model Aviation 200 Model Aviation ZAP UNIVERSITY COLLEGE OF GLUE KNOWLEDGE ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX AH Designs47 AMA Membership65 Academy Aviation R&D10 Ace Radio Control9 Aerodrome Models188 Aerospace Composite Prod43 Airtronics6-7 AI-tec Su-pr-Line Prod180 Altech Marketing179 181 183 American Jr Aircraft Co22 American Sailplane Des66 Astro Flight15 Authorized RC Service57 B&P Associates47 Quay Barber Models170 Berkeley Trading Co178 Marty Berr156 199 Blue Ridge Mach & Tools171 Blue Sky Enterprises169 Bolar Heli Research173 Dave Brown Products41 Byron Originals95 104 Campbell Tools Co173 Campbells Custom Kits166 Circus Hobbies186-188 Cleveland Model Supply16 Colorado Model Products8 Composite Aircraft Eng49 CompuServe175 Control Systems Labs161 Coverite1 63 Cox Hobbies101 Crenshaw Aero176 Culpepper Models Inc49 DGA Designs67 D&R Aircraft Mfg156 Davey Systems Corp157 Tom Dixon190 Dodgson Designs166 Doylejet171 Du-Bro Products Inc38 55 198 Elden-Ken Electronics197 FAI Model Supply189 FHS Supply Inc5 Fiberglass Master53 Fiorenze Hobby Center173 First US RC Flight School197 Flights Fancy Aeromodel174 Florlo Flyer177 Flyline Models197 Fourmost Products51 Fox Mfg Co162 Fults Dual Struts22 Futaba Corp America21 204 G&A Products51 GM Precision Products66 Gas Model Products189 Gator RC Products64 Carl Goldberg Models96 203 Gorham Model Products12 Paul K Guillow Inc174 Hi Performance Sailplanes173 High Performance Models55 High Sky67 Hobby Barn154-155 Hobby Dynamics111 114 Hobby Horn18 Hobby Lobby International17 Hobby Shirts & Hats197 Hobby Woods57 MS Atlanta184 Ikon Northwest Co39 Indy RC Sales Inc158-160 InVenture180 JR Radios111 114 JTec170 Jan Crystals18 Larry Jolly Model Products156 Jomar20 22 KD Grapphics42 K&B Mfg177 K&S Engineering198 K W Enterprises171 Kingsway Enterprises196 Kircher RC Products169 Kraft Midwest166 Kustom Kraftsmanship172 Kyosho185 Leisure Electronics163 Lone Star Models167 MACS Products64 MARC Show173 Memphis Model Market168 Jim Messers172 Micro Mark34-35 Midwest Products23 Model Rectifier Corp . Coy 2&3 819 Sid Morgan Plans182 Walt Moucha Models16 Mutchlers Hobbies164-165 NF Video Library42 NEPRO176 Nayco Co20 North Products169 Northeast Aerodynamics4 PacerTech12182191200 Paper Airplanes Intl172 Parrish Aircraft199 Pattern Tek200 John Peck Leisure Prod176 Pelican Enterprises198 Penn Valley Hobby Center169 Performance Hobbies176 Performance Products Ultd190 Perkins Avionics41 Phillips Aircraft Co182 Pica Products10 Planes & Things170 Polks Hobby Pot OGold169 Progress Mfg Co177 Pro-Tune Corp168 RB Bunch57 RC Buyers Guide22 RC Extras190 RJL Industries 66 Ragan/Barker Group47 Red Max Fuel5 Reynolds Jewelry181 Robart39 Robbe Model Sport11 Roun Tuit ..196 SAC66 SR Batteries153 Safety Plus16 53 Satellite City13 Scale Model Research171 Scale Plans & Photo Ser169 Sermos RC Snap Connectors64 Shamrock Competition Imports 9 Sheldons Hobby Shop20 Sig Mfg Co4 109 191 Skyline Hobby Mfg. Bob Smith Industries4 49 Square Cut Tools51 Stangel Enterprises198 Sullivan Iroducts102-103 Sunshine Hobbies67 Superior Aircraft174 Swanson Assoc20 Tatone Products Co178 Tidewater Hobby Enterprises161 Toledo RC Exposition171 Top Flite Models Inc113 Tower Hobbies192-195 Trader Jacks Buy Sell55 Tru-Turn189 VL Products67 Vinylwrite Custom Lettering64 WE Technical Services200 Williams Brothers53 Windsor Propeller Co43 Wing Mfg Co178 World EnginesCover 4 Nick Ziroli Models196 ZZ Enterprises57 Commissioner Sterling wrote Dr Good has fellow Denny Thats what call first-rate commis sioner modelers owe Sterling great debt successful outcome First Battle encouraging 1952 ac quired two RC channels 465 MHz 27255 MHz well simple no-exam permits just what wanted beginning EAA/Wischers Continued page 108 temperatures days Besides water demand high two survi val items heat humiditydeli ciously top-heavy soft serve cones May 1989 201
Edition: Model Aviation - 1989/05
Page Numbers: 88, 89, 90, 91, 92, 198, 199, 200, 201
Battle RC Frequencies now almost seems like right American switch RC transmitter fly plane hearts content its Its privilege right fought long hard modeling predeces sors over 40 years ago Part three-part series U Walt Good HOW WOULD like fly Radio Con trol AMA Nationals upon arrival discover 268 RC contes tantswith over 200 fre quency situationat 1958 Nats Chicagovividly illustrates painful steps AMA encountered its struggle obtain RC channels rap idly growing family RC fliers story early years fly ing RC frequencies battles fought obtain first RC chan nels FCC Over span 40 years Academy Model Aeronautics has en gaged least six confrontations Federal Communications Commission ac quire new RC channels protect channels already gained Equally impor tant fliers needed channels did require examinations licensing first battle begins acquisition single examination-free RC frequency last skirmish wont over until AMA has achieved its long-term goal gaining 80 exclusive RC channels Please note personal report based viewed events active participant almost phase por trayed story hope accurate its undoubtedly limited weakening memory hundreds ragged incom plete files gladly leave task filling gaps other generous souls participated efforts First look earliest beginnings 88 Model Aviation 4 authors twin brother Bill 1937-vintage transmitter Power output 100 watts note two big tubes An AC power cord runs outlet inside hangar author 1938 RC Guff model Note open side door revealing receiver relay Single-channel control rudder done using rubber-powered escapement THE EVENING STAR WMhJngton D CA-iSFEDERAL COMMUNICATIONS COMMISSION WEOSEODAY APRIL U 5952 Denny Envisions Radio Co -I es FutureFrom CEO E STERLING perfectly poHible soi recelvero thatCommissioner today model plane fans fly could get cost dow____________________________________________________________[v32][b2125429121100]] about 824 TheRemarks theIr creations radIo control mltters would much exAQA/Je Instead cIrcling wIre pensIve about $180 r ' tether planned sell ThIs Informed opln- clubs members Informed opIn can c wIth transmItters whlIIAJ0A Ion Iteginald ontrol plane Denny star d take five radio chan % stage andneis operate transmitter... screen Mr rudder control nyelevators etc took it1 i e about radioup Federal Communca 8 controlledtlons CommissIon tuinedF j down cold 11i models In-- vented Today Infinite numberl4 used , ultra high frequency channels e tar- available radIo con F Competition among builders IdAUINGOON 0 0 get practice tolled plane event meet ~ h ~runer planes has made pos guided - wd FCC has alIf D07aictemporary use 21251 possible new departuref. described megacycle wave band dem . model builders asa utopia could 1send planes fsr eyep ould see bF-be Above Reginald Denny movie star developer RC target drones during WW ii proposed FCC establish frequencies hobby RC planes Mr Denny claimed turned him down cold George Sterling figures apparently didnt know new 27255 MHz RC channel gone effect month earlier Below left L-R Walt Good Reginald Denny Bud Chapman lunching Paramount Studios 1938 Walt telling Denny about hobby RC planes Bud 1938 California Free Flight Gas Model Champ listens As FF Gas winners Walt Bud got airplane trips Hollywood tour Paramount Studios promoting movie Men Wings Right Walt Good Dorothy Lamour showboat set St Louis Blues Bud Walt parts movie extras grandstand audience scene Pre-World War W II RC Contests 19371941 Lets step back years just prior WW II see early RC fliers ac quired frequencies fly 1937 Nats Detroit first Nats RC event held RC pilots used amateur radio frequenciesprimarily 56 60 MHz six Nats entries acquired necessary amateur Ham licenses partners done transmitter signed air license holder sending call sign Morse code before flight signed off after flight During actual flight model builder part team used control buttons steer plane Legally speaking non-Ham al lowed operate transmitter overlooked days stories subject later Thus five RC Nats held 1937 through 1941 Ham frequencies used exclusively World War II shut down amateur radio en tirely 1942 1946 Ham transmit ters disabledas Radio Control hobby erstwhile RC hobbyists engaged military service work ing days nights weekends confiden tial hush-hush projects Uncle Sam After World War II 1946-1952 im mediate postwar years RC event re vived 1946 AMA Nats Wichita KS five RC entries year pilots flew great enthusi asm Again amateur radio frequencies used FCC shifted prewar 56-60 MHz band 50-54 MHz after war regulatory body still required Ham li cense obtain such license pass code test electronics test test radio regulationsnot easy task modeler wanted simple radio equipment simple radio license What RC hobbyists needed able obtain license exclusively RC flying examination Examination-free RC frequencies 1946 British modelers led way May 1989 89 RC competitions rorooo o 4p tosuoi 04oi, hr rho itoi ho nrrdI cidre Thr chip drrrol heir hop crc o ocrirroir crc ii Verrirerit IrrrloOotert cor hiro lrrrorvrry. rr horroorrrrl 004cr errilo C rrrrrrrlrtOricP C cirriricod rrrrroirrr arid Irrophr thrirt irk pp Vrorr itrrrirrit Iii di irk ni rkiirl ii irl hip diii hirk iii -A dli icud urrililii rrrurorr ii1 0did ii crc C CI cr Cc rIpohd iiirc l-I ivr crriiu i i1 As appeared July 1937 issue QST Ross Hull Byron Goodman assemble 13-fl RC Glider West Hartford CT along Clinton DeSoto staff QST amateur radio magazine introduced RO hobby radio amateurs securing examination-free RC license 27 MHz 460 MHz done means simple exchange let ters between D W Allen Society Model Aero Engineers British counter part AMA British Post fice represented Engineer-in-Chief Radio Branch Mr C E Clarke Mr Clarkes short reply Allen dated November 8 1946 sanctioned follow ing frequencies RC model use Britain Frequency #14605 MHz within Hz Frequency #22766-28 MHz Additional specifications Clarkes let ter follows Maximum input power five watts No special license required Use equipment RC communication Modelers US felt optimistic British could obtain RC frequencies quickly expected little no delay se curing similar response Federal Communications Commission FCC Un fortunately wrong Several years pass before obtained similar RC use frequencies America First Battle RC Frequencies 1946 living Washington DC 1946 Russ Nichols executive diFEDERAL COMMUNICATIONS COMMISSION WASHINGTON 25 DC November 4 1948 ARORESS ALL COMMUNICATIONS reply refer 6104 Loademy Model Lsronautics l03 Conxeoticut Lvenue NW Washington 6 D 0 Gentlemen Observation made during National Model Airoraft Meet Naval Air Station Olathe Kansas August 4 8 1948 inclusive revealed number ireg1slarities oomneo tion use 01 amateur stations purpose remotely controlling model aircraft radio intended t oitationa will jasued instance However 1l appreciated organization calls attention members foflowing omissions appear quit prevalent airt emphasizes amat eur stations operated purpose applicable rules should adhered Thzring course Meet foflowing omissions As result FCC inspectors report AMA received letter FCC outlining violations committed RC contestants 1948 Nationals held Olathe KS rector AMA immediately dis cussed modelers RC frequency needs him Having worked several gov eminent agencies before joining AMA Russ familiar some proce dures suggested arrange visit Federal Communications Commis sion discuss matter RC frequencies face-to-face January 1947 letter FCC AMA ouflined its RC airplane needs fashion similar British SMAE letter requested exploratory meeting first meeting held April 30 1947 Eight FCC engineers representing seven FCC departments attended Russ representing AMA pos itive result FCC suggestion newly contemplated Citizens Radio Service might able offer channel RC Af ter several visits FCC personnel year Russ thought making some progressalthough still ob tained no RC frequencies 1947 Nats Minneapolis seven RC entries number suc cessful flights RC planes growing up However still using Ham fre quencies concomitant requirement amateur license just gotten Ham license after three attempts months pass code test must admit thing hurt watching 10year-old kid zip through code test first try As consolation finished writ ten parts electronics regulations exams before did Follow-up meetings between FCC AMA discuss simple no exam RC frequencies equally unproductive 1948 drew close still achieved nothing tangible Admittedly bit slow learning deal FCCs bureaucratic system however about get some action RC modelers charged FCC viola tions1948 1948 Nats August Olathe KS saw 14 RC entries demon strated numerous flights also scored first FCC observers appeared Nats showed interest RC event expressed concern AMA November 1948 letter detailing number violations FCC regulations through improper use amateur sta tions no citations made against Ham operators time FCC dicated might future ci tation type could result withdrawal Hams license FCC finally gotten FCCs attention respect RC planes frequen cies Ironically wasnt sort atten tion hoped FCC observers learned later inspectors local field office simply doing duty As described FCC report fol lowing six violations cited FCC inspectors During course meet fol lowing omissions noted 90 Model Aviation noted 1 No provision kind made measurement emitted frequency violation Section 12135 rules 2 some instances amateur stations operated unlicensed persons licensed amateurs stood simply operated unlicensed persons li censed operator attendance violation Section 1228 rules either case 3 Failure identify amateur station transmitting control signals violation Section 12159 rules 4 Although amateur stations being operated portable stations Olathe KS overall period 48 hours licensees submitted notices portable operation Commissions Engineer Charge Kansas City MO violation Section 1291 rules 5 Several amateur station transmitters observed operating outside signed amateur frequency bands viola tion Sections 12111 12113 rules 6 Little no effort made maintain proper station log violation Section 12136 rules AMA took FCC report Ham radio violations 1948 Nats seriously cautioning its Ham users 50 MHz band RC follow stated FCC regu lations Although several violated rules easily correctible regula tion opinion haunt Ham RC fliers 40 yearsand present day Section 1228 allowed licensed operator Ham voice station hand microphone person wished speak transmit voice via radio prohibited other mode emission such Morse codes on-off signals tones sent anyone other licensed operator impact RC flier Ham operator permitted hand RC control box anyone elseeven own son friendfor steering plane rule still effect today FCC Violations1949 second 1949 letter FCC cited new amateur ra dio violations letter sent AMA directly charged permitting certain unlicensed persons participating 18th National AMA Meet Naval Air Station Olathe KS engage portable operation amateur station W3NPS violation Section 1228 Commissions rules two-page reply FCC must have effective because let offthis time Its possible took considera tion fact Rudder Bug won RC event year doubt Although viewpoint RC modeler some FCC-cited violations might seem like peccadilloes prov able infringements rules effect amateur two-way communication nonvoice signals clearly deci sively illustrated certain FCC rules Ham operation simply incom patible Radio Control modeler practice FCC IMrZT DE DK1n5 recent conference Weahington office Federal C nicatione Ciaioc brought out fact FCC Ie genuinely terested solving unl4ue problem brought about advent radio control flying Urge scale Attending rpreaentlng Academy Dr Qood Chairmen Radio Control Cmaitte CO Wright AMA President Willie C Drown firet Free ideat Academy end Headquartere staff mabere ooweinua Opinion foflowing conference signif icant forward etep usda AMA effort obtain lees strin gent requirements obtaining FCC Uoeue radio control flying leading op conference wee letter received fron Con iniesion calling ettention nuer aeqlem nonconforndty regulaticca wMch observed end reported F C C off ciala attending Rational Meet Olatha diacuesing letter waa specifically requested notice given AMA einbere ell radio operation non-ailitary governmental nature includ radio control flying Ie sub3eat FCC control perti nent regulatiorm must obeyed Whle thie euheot miga well point out Academy hopes obtain relaxation requirement us aay fly radio control oon sense dictate obeying law FCC ot reasonably inpected cooperate us pereiet cooperating witi Thus November 1948 Issue Model Aviation reported AMA FCC held discussions Olathe violations upshot meeting new FCC regulations would required because RC operation specifically covered existing FCC regulations Obviously basic conflict tween FCC AMA viewpoints much RC modeler should reason ably required know apparent FCC philosophy modeler clever enough build tame RC model ought have no trouble passing exami nations obtain Ham license AMA philosophy different same clever modeler ought able build use simple low-powered trans mitter receiver RC having learn skills required communications-oriented radio amateur negotiations between FCC AMA during formative years regulating RC frequencies battle lines drawn around fundamental difference viewFEDERAL COMMUNICATIONS COMM ISSION WASHINGTON 25 DC Septenber 16 1949 TO TUE SECRETARY reply refer 8032 Mr Walter Good W3NPS 9123 Eton Road Silver Spring Maryland Dear Sir Commission has received information its Engineer Charge Kansas City Lljasouri soveral occasions during period July 25 July 30 1949 permitted certain unlicensed persons participating 113th National Academy Llodel Aeronautics Lleet Naval Air Station Olathe Kansas engage portable operation enateur station violation Section 318 Communications Act 1934 amended apd Section 1228 Commissions Rules requested submit ion explanation may have youq matter tfr After Nats 1949 FCC threatened revoke Walt Goods Ham radio license allow ing unlicensed persons operate amateur station three-page reply Walt pre vented happening close call OK FCC allow unlicensed person talk radio station OK allow fly airplane May 1989 91 Radio Control R C enthusiasts have long wanted License-Free band its now equipment VERNON C MACNAIB quarter century has illegal operate radio transmitter license granted Federal Bureau currently FCC Federal Connunicalions Commission law modified June 1949 allow layman Mr John Q Public obtain license operate radio transmitter necessity being examined determine technical bnowledge radio ecen bnowing character International Morse Code Citicens Band plain citicens modrl airplane builders fliers opened June first course ceclaiss definite restrictions because transmis sions must interfere already established licensrd sercicco excerpted follows fr " Regulations governir. . As reported Model Airplane News 1950 Radio Control now Vernon Mac Nabb produced first examination-free sets operation 465 MHz frequency required type-approval tests FCC lab no home-built sets allowed operate Treasslttar aaeptetIs .ttoaatahad R5t, battacta t rlshi point second AMA/FCC meeting1948 Within two weeks after 1948 FCC vio lations letter AMA President-elect C 0 Wright visited Washington DC joined AMA meeting FCC discuss letter Attending AMA Willis Brown first AMA president active Ham Russ Nichols Walt Good chairman AMA RC Com mittee As reported AMA Model Aviation November 30 1948 recent conference Washington office FCC re vealed fact FCC genuinely terested solving unique problems brought about advent Radio Con trol flying large scale positive FCC action resulted AMA/FCC meeting June 1 1949 FCC established first Citizens Radio Service channel RC regulation specified RC flier may use frequency 465 MHz simple Citizen Band type license 465 MHz transmitter must manufactured item type ap proved FCC laboratoryno homebuilt units allowed represented good start FCC recognition modelers need examfree RC operation Some manufacturers thought 465 MHz frequency would too difficult ap ply RC because considered too high radio frequency available technology example vacuum tubes market sufficient quality used receiver small tube six-volt heater-type cath ode drew 300 mAh needed heavy battery give adequate flight life Ive told Nate Rambo used Farmpack brand battery intended radios farm achieve flight time de sired Vernon MacNabb Citizen-Ship Ra dio Corporation bolstered thorough knowledge radio technology compo nents persuaded Idea company Indi anapolis tackle transmitter re ceiver design George Fathauer engineered design help partners Sam Dick Goldstein project took better part year although much time spent FCC laboratories type approval tests made transmitter first rejected FCC because frequency drifted out toler ance temperatures below freezing After problem corrected transmitter returned FCCwhere remained such long time Mac Nabb urged Indiana senator Homer Capehart intervene Capeharts inquir ies disclosed transmitter passed tests paperwork hadnt completed approval certificate arrived three days later just time Gene Foxworthy fly Citizenship 465 MHz gear 1950 RC Natsand win MacNabb still has first RC license 465 MHz issued FCC June 26th 1950 transmitter receiver sold $3995 inexpensive con verted 1988 dollars todays market $3995 price tag would translate over $300 Through recent contacts some pioneering names early years Radio Control learned MacNabb day lives Pompano Beach FL plays golf three times week still flies little RCat 85 years age told paid Idea Company sum $500 total 465 MHz development concept tested production design Gene Foxworthy wife Martha re tired West Virginia still active RC talk weekly Ham ra dios Gene designed first mechanical parts MacNabb gear well doing test flying Goldstein brothers earned PhD physics theyre both professors astronomy University Vir ginia other Cnlifornia Obviously high-powered devel opment team Still FCC RC violations1951 Andrews Field near Washington DC 1951 FCC again alleged improper us age amateur frequency RC again issued warning letters happened CD RC event violation cited spent consider able time conversing FCC inspec torpartly divert him shutting down event before finished flying Al though ploy worked didnt prevent letter reprimand came through later stating RC opera tor must have Ham license However FCC stopped short taking license away thank goodness Participants 1951 Nats RC event came up creative roundabout solu tion operator licensing problem lo cal Ham operated unlicensed RC transmitters holding controls hand pushing buttons re sponse voice commands pilot feasible way completing RC event satisfying local FCC spector hardly satisfactory modelers viewpoint Up time except re cently approved 465 MHz gear Ham frequencies available RC use As abundanfly clear cited examples amateur frequencies still re quired Ham operator license spite awkwardness conform ing Ham operator rules owe much thanks Ham community its contri butions pioneering early RC planes electronics efforts made possi ble non-Ham experimenters join advancing tide development RC Air craft Ross Hull Byron Goodman Clinton DeSoto others ARRL Head quarters staff deserve mention Turning operator question newly acquired 465 MHz RC channel no firm guidelines set forth owner 465 MHz gear al lowable operator controls May owner hand transmitter friend try controls Since Citizens Radio Ser vice rules clear point FCC modified request AMA shortly after 465 MHz came un Continued page 198 92 Model Aviation England past three years 61 49 both suitable model also believe solid 45 Royal OS suit ably de-tuned would plenty power current setup Merco 6155 285 venturi SST silencer 10 holes open no pressure Taffinders 5% nitro PA fuel 114 x 6 Bolly three-blade prop engine has two 020 head gaskets added further soften four-cycle/twocycle break combination gets through pattern using just 3% oz fuel Lines 70 ft 018 cable model weighs 64 oz current trim finish see Sig dopenitrate clear base followed butyrate colorover silkspan wing 56-oz Sig glass cloth epoxy everywhere else am com pletely convinced glass cloth epoxy way go speed strength fuel-proofing stability finish As far can tell light lighter tra ditional dope-and-paper finish have very good results using Loctite Finishing Epoxy cloth stuff sands like chalk leaves very little material plane use dope colors nitrate bonding coat must first applied over epoxy butyrate wont adhere directly epoxy very well usually spray two coats nitrate clear over sanded epoxy-glass surface sand lightly spray filler coat talc nitrate After wet-sanded 400-grit paper spray colors last thought build model again would add another inch inch-and-a-half tail moment length would increase elevators groove leverage would also look scalelike may wish incorpor ate change own T-60 II Fly safe fly quiet contact Don McClave 221 NW 2nd Ave Suite 300 Portland OR 92709 find out can join PAMPA association model Stunt fliers enthusiasts responding advertisers mention read about ModelAviation Frequency Battle/Good Continued page 92 der CRS umbrella Under new regu lation persons other owner would allowed operate RC transmitter owners permission fore stalled possible repetition mis understandings concerning piloting occurred modelers using ama teur radio frequencies frequency home-built RC gear 1949-1952 Gratified though 1949 have 465 MHz frequency ap proved RC use some us felt strongly still worthwhile pursue fre quency allocation simple home-built gear almost three years before FCC handed us victory second fa vorable ruling concerning RC frequency us age permitting home-built gear dispens ing requirement examina tion story achieved C/LNewR/C IHANGERJCATALOG Kits OR Plans I Innovative InexpensiveI Quick & Easy Build rnttttNrrr Ut QUICK & LIVELY SPORT RIPLASIE GREAT FOR SMALL FIELDSOr d e r y o u r s t o d y I gned new ton 074 Queen nee engine $2 ISpecifications Wing Span 26 Wing Area 275 Sq Length 25 Loading 13 02/Sq Ft. Weight 11/2 Lbs I Radio 4Channel micro servos Expeneote aileron trainer qualifies pilot sleek look ing airplane Sinpie durable rectangular 2spar nheeted wings sheeted hon type fonelage nolid tail surf aces pre-cut AAA balsa ply full-sian illustrated plans STANGEL ENTERPRISES conplete instructions hardware package wheels ftc p 0 BOX 336 Ml EAA Ilana $4995 $35O 5kM Plans Only S995cSllO 5kM MEMBERWAUKEIHA W SCONS N 0 8 1336 AMJ 198 Model Aviation K&S METAL CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture f carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises 2540 RIDGE ROAD LANSING ILLINOIS 60438 Phone 312-895-8151 Aluminum/Brass/Copper Tubing & Shapes Music Wire Tos Soldenng Irons Silk Silk Span Finishing Matenals Send 25 br catalog KASigring A017 W ROfli *aat goal follows 27255 MHz frequency desig nated FCC use Industrial Scientific Medical ISM band indus trial controls scientific experiments medical applications such diathermy practice however other users excludedso much frequency known unofficially FCC Garbage Band sensed despite hangers-on already acquired licensing con struction requirements 27255 MHz frequency would minimalif could demonstrate channel would work RC After British modelers using 27 MHz RC since 1946 over three years FCC reluctant consider 27255 MHz RC some proof its work ability USA environment end FCC provided AMA Ex perimental License KG2XDA actual flight tests begin February 1950 July 1950 over 100 flights made Washington DC area oaly two cases apparent interference flight planeand no crashes However unconvinced local tests gave broad enough data spread FCC suggested supplemental flight tests conducted other areas agency extended KG2XDA li cense nine AMA members across USA provided 200 additional flights Most modelers members AMAs first RC Committee covered both RC contest rules frequencies Chairman Walt Good Bethesda MD Clay Freese Chicago IL William Stel mach Ed Rockwood Palo Alto CA Dick Schumacher Van Nuys CA Warren Bartlett Detroit MI Harry Geyer Jim Schenck Pittsburgh PA Ed Lorenz Hyde Park NY midyear 1951 eight 300 tests completed marred glitch es considered reason able proof satisfactory RC operation 27255 MHz test Warren Bartlett tentionally flew near hospital using diathermy equipment 27 MHz frequency established 1000 ft too close causing glitches plane mile proved adequately safe distance showing no interference experimental radio gear homemade modelers using crystal control less five watts some cases modified 52MHz RC rigs formerly used Ham RCers Stepping back early 1951 over 200 flights completed felt time FCC engineers being much too conservative asking test flights much too slow getting started drafting some simple 27 MHz rules discussed situation lunching Dave Rabenhorst John Hopkins Lab both worked As both mod eler engineer clearly understood picture Any suggestions Dave asked said yes recommending go higher FCC organization speak di rectly seven FCC commis sioners final voters FCC ac tions Note FCC established Congress 1934 seven com missioners appointed US Presi PLAIN CRADLE-2 AlsoPurchase local hobby shop order direct~tet0 j3 Completely Fusiproof 6 Wide Fuselage Unbreakable es Flat Perfect Field Shop Same Day Shipping Nest eetIefIe return unused lt fuN refund Marty BerrSend $1796 plus $200 shipping handling 94 Stonefield Trail South Windsor CT 06074114 end 113 Scale Sizes 5 plus $200 S & H Want go vertical flintjet Series 04 ikytank FOf Tile shark sill allon jetlike performnc whO nor hassle ducted k5 enpens Both kits balsa cuounractios nit h spar wings y can act ommoda te standard mini nero o h channel radi nsyntens nih accept 20 2y nine engines noceptinna pyrforsancesset 21 25 rear en haunt enginen Thy ik uomesbmt docile inapt spea ds ki tnare mediate flyer ie offer plans canopies forA-4 SkyhewkF-20 Tigeraherk uisb airatch build Shifi Plans3k slug uput3k0000 soun Canopy $1000 Flawn only 400 sq area 330 sq area Other products available Poel Isjeitinn lireus 3f tenath 30 length Fans lain ginard Pnpes Insonatuon flodel Pro$4500 s/fl$4000 S/f doctu 1111 Isis B Plans Send check Money Order coo add $3- FL flea add 6% sales tax3055814477 PARRISH AIRCRAFT & Scale Models 1125 SW 49th Tar. 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$IC 5K20 $K720 fans $CDF-t $1996 Navy P40-i Skyray 1% e ength ing span 10 lbs oh $IC actible landing anar $CDF-2 6 Sill EPlinger Feandine Menebee AMA 14PF5 Hall Fame Prices lot conrpleea plans sub assanebly detailed parts lists Add $200 tee MaIlIng Tuba SeedIer brechura ahead crowd new broobere showing new Plan Sets 1989 Seed $1 etondable yost 1st order1 WE TECHNICAL SERVICES PO Box 76884-A Atlanta GA 30328 dent Sounds great DaveHow get speak Well said stepfather Sen ator Charles Tobey New Hampshire Im sure can arrange upon Dave stepped phone called senators office turned asked want appointment commissioner afternoon morrow decided tomorrow meeting FCC Commissioner George Sterling spring 1951 turning point acquisition 27255 MHz frequency RC As fellow DCRC member Carl Cessna walked down hall commis sioners office FCC staff members gawked RC plane toting Sterling gracious understanding probably because quickly learned active Ham operator since 1912 understood technical radio pects ease knowledge FCC commissioner hold Ham license Most appointees politically affiliated connected radio broadcast industry both As side note Ive just read QST Amateur Radio Journal January 1988 Sterling WlAE remains active Ham home Maine today five Hams got licenses 1912 still active today After carefully examining planes RC gear listening report AMAs flight test program 27255 MHz Sterling responded one-page sum mary proposal pushing FCC staff response posi tive believe reasonable plan maybe restrictive neces SUPER DELUXE PRE-BUILT KITR 1 Carbon Fiber reinforced Epoxy Glass Fuselage• 2 FACTORY SHEETED Carbon Fiber reinforced Ultralight Honeycomb Plug-in Wingrr 3 FACTORY SHEETED adjustable 8 removable stab 4 Tn conventional retract 5 Pre-cut firewallOnly AVAILABLE IN BASIC KIT ONLY $1Length-6067$450 Carbon Fiber Reinforced Fuselage Wing Area- 700 sq Latest Japanese Pattern Design n byWegi 775 850 bs Top Japanese Pilot able FAI AMAEttg ye 0cc Please add $15 shippingPATTERN TEK 1408298 0311 will happy pass along favorable recommendations Shortly thereafter AMA received preliminary draft rule-making Docket #10086 modified clude 27255 MHz frequency RC course AMA commented favorably Simple RC rules arrive1952 Novem ber 1951 final proposal rule-making Docket #10086 appeared amend ment Part 19 Rules Citizens Ra dio Service included AMA plan adopting 27255 MHz frequency RC Since no objections received FCC regulation became official March 24 1952 long struggle AMA finally won approval first homebuilt RC frequency following regulations applied new Class C stations 1 Frequency27255 MHz crystal control assure accuracy 2 Powerfive watts maximum 3 Emissionson/off carrier tone mod ulation 4 Type approval required crystal-controlled transmitters Thus homebuilt gear OK 5 license simple FCC Form 505 flier sends nearest FCC fice No exams required After five years effort part AMA FCC March 24 1952 great day indeed About month after 27255 MHz fre quency made available received letter FCC Commissioner Sterling enclosed clipping Washington Evening Star newspaper about Reginald Denny well-known movie star produced RC target drones US military during WW II Denny now proposing use radio equipment RC model fliers According clip ping Denny approached FCC .. turned down cold Exactly never found out note attached clipping FCC responding advertisers mention read about Model Aviation 200 Model Aviation ZAP UNIVERSITY COLLEGE OF GLUE KNOWLEDGE ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX AH Designs47 AMA Membership65 Academy Aviation R&D10 Ace Radio Control9 Aerodrome Models188 Aerospace Composite Prod43 Airtronics6-7 AI-tec Su-pr-Line Prod180 Altech Marketing179 181 183 American Jr Aircraft Co22 American Sailplane Des66 Astro Flight15 Authorized RC Service57 B&P Associates47 Quay Barber Models170 Berkeley Trading Co178 Marty Berr156 199 Blue Ridge Mach & Tools171 Blue Sky Enterprises169 Bolar Heli Research173 Dave Brown Products41 Byron Originals95 104 Campbell Tools Co173 Campbells Custom Kits166 Circus Hobbies186-188 Cleveland Model Supply16 Colorado Model Products8 Composite Aircraft Eng49 CompuServe175 Control Systems Labs161 Coverite1 63 Cox Hobbies101 Crenshaw Aero176 Culpepper Models Inc49 DGA Designs67 D&R Aircraft Mfg156 Davey Systems Corp157 Tom Dixon190 Dodgson Designs166 Doylejet171 Du-Bro Products Inc38 55 198 Elden-Ken Electronics197 FAI Model Supply189 FHS Supply Inc5 Fiberglass Master53 Fiorenze Hobby Center173 First US RC Flight School197 Flights Fancy Aeromodel174 Florlo Flyer177 Flyline Models197 Fourmost Products51 Fox Mfg Co162 Fults Dual Struts22 Futaba Corp America21 204 G&A Products51 GM Precision Products66 Gas Model Products189 Gator RC Products64 Carl Goldberg Models96 203 Gorham Model Products12 Paul K Guillow Inc174 Hi Performance Sailplanes173 High Performance Models55 High Sky67 Hobby Barn154-155 Hobby Dynamics111 114 Hobby Horn18 Hobby Lobby International17 Hobby Shirts & Hats197 Hobby Woods57 MS Atlanta184 Ikon Northwest Co39 Indy RC Sales Inc158-160 InVenture180 JR Radios111 114 JTec170 Jan Crystals18 Larry Jolly Model Products156 Jomar20 22 KD Grapphics42 K&B Mfg177 K&S Engineering198 K W Enterprises171 Kingsway Enterprises196 Kircher RC Products169 Kraft Midwest166 Kustom Kraftsmanship172 Kyosho185 Leisure Electronics163 Lone Star Models167 MACS Products64 MARC Show173 Memphis Model Market168 Jim Messers172 Micro Mark34-35 Midwest Products23 Model Rectifier Corp . Coy 2&3 819 Sid Morgan Plans182 Walt Moucha Models16 Mutchlers Hobbies164-165 NF Video Library42 NEPRO176 Nayco Co20 North Products169 Northeast Aerodynamics4 PacerTech12182191200 Paper Airplanes Intl172 Parrish Aircraft199 Pattern Tek200 John Peck Leisure Prod176 Pelican Enterprises198 Penn Valley Hobby Center169 Performance Hobbies176 Performance Products Ultd190 Perkins Avionics41 Phillips Aircraft Co182 Pica Products10 Planes & Things170 Polks Hobby Pot OGold169 Progress Mfg Co177 Pro-Tune Corp168 RB Bunch57 RC Buyers Guide22 RC Extras190 RJL Industries 66 Ragan/Barker Group47 Red Max Fuel5 Reynolds Jewelry181 Robart39 Robbe Model Sport11 Roun Tuit ..196 SAC66 SR Batteries153 Safety Plus16 53 Satellite City13 Scale Model Research171 Scale Plans & Photo Ser169 Sermos RC Snap Connectors64 Shamrock Competition Imports 9 Sheldons Hobby Shop20 Sig Mfg Co4 109 191 Skyline Hobby Mfg. Bob Smith Industries4 49 Square Cut Tools51 Stangel Enterprises198 Sullivan Iroducts102-103 Sunshine Hobbies67 Superior Aircraft174 Swanson Assoc20 Tatone Products Co178 Tidewater Hobby Enterprises161 Toledo RC Exposition171 Top Flite Models Inc113 Tower Hobbies192-195 Trader Jacks Buy Sell55 Tru-Turn189 VL Products67 Vinylwrite Custom Lettering64 WE Technical Services200 Williams Brothers53 Windsor Propeller Co43 Wing Mfg Co178 World EnginesCover 4 Nick Ziroli Models196 ZZ Enterprises57 Commissioner Sterling wrote Dr Good has fellow Denny Thats what call first-rate commis sioner modelers owe Sterling great debt successful outcome First Battle encouraging 1952 ac quired two RC channels 465 MHz 27255 MHz well simple no-exam permits just what wanted beginning EAA/Wischers Continued page 108 temperatures days Besides water demand high two survi val items heat humiditydeli ciously top-heavy soft serve cones May 1989 201
Edition: Model Aviation - 1989/05
Page Numbers: 88, 89, 90, 91, 92, 198, 199, 200, 201
Battle RC Frequencies now almost seems like right American switch RC transmitter fly plane hearts content its Its privilege right fought long hard modeling predeces sors over 40 years ago Part three-part series U Walt Good HOW WOULD like fly Radio Con trol AMA Nationals upon arrival discover 268 RC contes tantswith over 200 fre quency situationat 1958 Nats Chicagovividly illustrates painful steps AMA encountered its struggle obtain RC channels rap idly growing family RC fliers story early years fly ing RC frequencies battles fought obtain first RC chan nels FCC Over span 40 years Academy Model Aeronautics has en gaged least six confrontations Federal Communications Commission ac quire new RC channels protect channels already gained Equally impor tant fliers needed channels did require examinations licensing first battle begins acquisition single examination-free RC frequency last skirmish wont over until AMA has achieved its long-term goal gaining 80 exclusive RC channels Please note personal report based viewed events active participant almost phase por trayed story hope accurate its undoubtedly limited weakening memory hundreds ragged incom plete files gladly leave task filling gaps other generous souls participated efforts First look earliest beginnings 88 Model Aviation 4 authors twin brother Bill 1937-vintage transmitter Power output 100 watts note two big tubes An AC power cord runs outlet inside hangar author 1938 RC Guff model Note open side door revealing receiver relay Single-channel control rudder done using rubber-powered escapement THE EVENING STAR WMhJngton D CA-iSFEDERAL COMMUNICATIONS COMMISSION WEOSEODAY APRIL U 5952 Denny Envisions Radio Co -I es FutureFrom CEO E STERLING perfectly poHible soi recelvero thatCommissioner today model plane fans fly could get cost dow____________________________________________________________[v32][b2125429121100]] about 824 TheRemarks theIr creations radIo control mltters would much exAQA/Je Instead cIrcling wIre pensIve about $180 r ' tether planned sell ThIs Informed opln- clubs members Informed opIn can c wIth transmItters whlIIAJ0A Ion Iteginald ontrol plane Denny star d take five radio chan % stage andneis operate transmitter... screen Mr rudder control nyelevators etc took it1 i e about radioup Federal Communca 8 controlledtlons CommissIon tuinedF j down cold 11i models In-- vented Today Infinite numberl4 used , ultra high frequency channels e tar- available radIo con F Competition among builders IdAUINGOON 0 0 get practice tolled plane event meet ~ h ~runer planes has made pos guided - wd FCC has alIf D07aictemporary use 21251 possible new departuref. described megacycle wave band dem . model builders asa utopia could 1send planes fsr eyep ould see bF-be Above Reginald Denny movie star developer RC target drones during WW ii proposed FCC establish frequencies hobby RC planes Mr Denny claimed turned him down cold George Sterling figures apparently didnt know new 27255 MHz RC channel gone effect month earlier Below left L-R Walt Good Reginald Denny Bud Chapman lunching Paramount Studios 1938 Walt telling Denny about hobby RC planes Bud 1938 California Free Flight Gas Model Champ listens As FF Gas winners Walt Bud got airplane trips Hollywood tour Paramount Studios promoting movie Men Wings Right Walt Good Dorothy Lamour showboat set St Louis Blues Bud Walt parts movie extras grandstand audience scene Pre-World War W II RC Contests 19371941 Lets step back years just prior WW II see early RC fliers ac quired frequencies fly 1937 Nats Detroit first Nats RC event held RC pilots used amateur radio frequenciesprimarily 56 60 MHz six Nats entries acquired necessary amateur Ham licenses partners done transmitter signed air license holder sending call sign Morse code before flight signed off after flight During actual flight model builder part team used control buttons steer plane Legally speaking non-Ham al lowed operate transmitter overlooked days stories subject later Thus five RC Nats held 1937 through 1941 Ham frequencies used exclusively World War II shut down amateur radio en tirely 1942 1946 Ham transmit ters disabledas Radio Control hobby erstwhile RC hobbyists engaged military service work ing days nights weekends confiden tial hush-hush projects Uncle Sam After World War II 1946-1952 im mediate postwar years RC event re vived 1946 AMA Nats Wichita KS five RC entries year pilots flew great enthusi asm Again amateur radio frequencies used FCC shifted prewar 56-60 MHz band 50-54 MHz after war regulatory body still required Ham li cense obtain such license pass code test electronics test test radio regulationsnot easy task modeler wanted simple radio equipment simple radio license What RC hobbyists needed able obtain license exclusively RC flying examination Examination-free RC frequencies 1946 British modelers led way May 1989 89 RC competitions rorooo o 4p tosuoi 04oi, hr rho itoi ho nrrdI cidre Thr chip drrrol heir hop crc o ocrirroir crc ii Verrirerit IrrrloOotert cor hiro lrrrorvrry. rr horroorrrrl 004cr errilo C rrrrrrrlrtOricP C cirriricod rrrrroirrr arid Irrophr thrirt irk pp Vrorr itrrrirrit Iii di irk ni rkiirl ii irl hip diii hirk iii -A dli icud urrililii rrrurorr ii1 0did ii crc C CI cr Cc rIpohd iiirc l-I ivr crriiu i i1 As appeared July 1937 issue QST Ross Hull Byron Goodman assemble 13-fl RC Glider West Hartford CT along Clinton DeSoto staff QST amateur radio magazine introduced RO hobby radio amateurs securing examination-free RC license 27 MHz 460 MHz done means simple exchange let ters between D W Allen Society Model Aero Engineers British counter part AMA British Post fice represented Engineer-in-Chief Radio Branch Mr C E Clarke Mr Clarkes short reply Allen dated November 8 1946 sanctioned follow ing frequencies RC model use Britain Frequency #14605 MHz within Hz Frequency #22766-28 MHz Additional specifications Clarkes let ter follows Maximum input power five watts No special license required Use equipment RC communication Modelers US felt optimistic British could obtain RC frequencies quickly expected little no delay se curing similar response Federal Communications Commission FCC Un fortunately wrong Several years pass before obtained similar RC use frequencies America First Battle RC Frequencies 1946 living Washington DC 1946 Russ Nichols executive diFEDERAL COMMUNICATIONS COMMISSION WASHINGTON 25 DC November 4 1948 ARORESS ALL COMMUNICATIONS reply refer 6104 Loademy Model Lsronautics l03 Conxeoticut Lvenue NW Washington 6 D 0 Gentlemen Observation made during National Model Airoraft Meet Naval Air Station Olathe Kansas August 4 8 1948 inclusive revealed number ireg1slarities oomneo tion use 01 amateur stations purpose remotely controlling model aircraft radio intended t oitationa will jasued instance However 1l appreciated organization calls attention members foflowing omissions appear quit prevalent airt emphasizes amat eur stations operated purpose applicable rules should adhered Thzring course Meet foflowing omissions As result FCC inspectors report AMA received letter FCC outlining violations committed RC contestants 1948 Nationals held Olathe KS rector AMA immediately dis cussed modelers RC frequency needs him Having worked several gov eminent agencies before joining AMA Russ familiar some proce dures suggested arrange visit Federal Communications Commis sion discuss matter RC frequencies face-to-face January 1947 letter FCC AMA ouflined its RC airplane needs fashion similar British SMAE letter requested exploratory meeting first meeting held April 30 1947 Eight FCC engineers representing seven FCC departments attended Russ representing AMA pos itive result FCC suggestion newly contemplated Citizens Radio Service might able offer channel RC Af ter several visits FCC personnel year Russ thought making some progressalthough still ob tained no RC frequencies 1947 Nats Minneapolis seven RC entries number suc cessful flights RC planes growing up However still using Ham fre quencies concomitant requirement amateur license just gotten Ham license after three attempts months pass code test must admit thing hurt watching 10year-old kid zip through code test first try As consolation finished writ ten parts electronics regulations exams before did Follow-up meetings between FCC AMA discuss simple no exam RC frequencies equally unproductive 1948 drew close still achieved nothing tangible Admittedly bit slow learning deal FCCs bureaucratic system however about get some action RC modelers charged FCC viola tions1948 1948 Nats August Olathe KS saw 14 RC entries demon strated numerous flights also scored first FCC observers appeared Nats showed interest RC event expressed concern AMA November 1948 letter detailing number violations FCC regulations through improper use amateur sta tions no citations made against Ham operators time FCC dicated might future ci tation type could result withdrawal Hams license FCC finally gotten FCCs attention respect RC planes frequen cies Ironically wasnt sort atten tion hoped FCC observers learned later inspectors local field office simply doing duty As described FCC report fol lowing six violations cited FCC inspectors During course meet fol lowing omissions noted 90 Model Aviation noted 1 No provision kind made measurement emitted frequency violation Section 12135 rules 2 some instances amateur stations operated unlicensed persons licensed amateurs stood simply operated unlicensed persons li censed operator attendance violation Section 1228 rules either case 3 Failure identify amateur station transmitting control signals violation Section 12159 rules 4 Although amateur stations being operated portable stations Olathe KS overall period 48 hours licensees submitted notices portable operation Commissions Engineer Charge Kansas City MO violation Section 1291 rules 5 Several amateur station transmitters observed operating outside signed amateur frequency bands viola tion Sections 12111 12113 rules 6 Little no effort made maintain proper station log violation Section 12136 rules AMA took FCC report Ham radio violations 1948 Nats seriously cautioning its Ham users 50 MHz band RC follow stated FCC regu lations Although several violated rules easily correctible regula tion opinion haunt Ham RC fliers 40 yearsand present day Section 1228 allowed licensed operator Ham voice station hand microphone person wished speak transmit voice via radio prohibited other mode emission such Morse codes on-off signals tones sent anyone other licensed operator impact RC flier Ham operator permitted hand RC control box anyone elseeven own son friendfor steering plane rule still effect today FCC Violations1949 second 1949 letter FCC cited new amateur ra dio violations letter sent AMA directly charged permitting certain unlicensed persons participating 18th National AMA Meet Naval Air Station Olathe KS engage portable operation amateur station W3NPS violation Section 1228 Commissions rules two-page reply FCC must have effective because let offthis time Its possible took considera tion fact Rudder Bug won RC event year doubt Although viewpoint RC modeler some FCC-cited violations might seem like peccadilloes prov able infringements rules effect amateur two-way communication nonvoice signals clearly deci sively illustrated certain FCC rules Ham operation simply incom patible Radio Control modeler practice FCC IMrZT DE DK1n5 recent conference Weahington office Federal C nicatione Ciaioc brought out fact FCC Ie genuinely terested solving unl4ue problem brought about advent radio control flying Urge scale Attending rpreaentlng Academy Dr Qood Chairmen Radio Control Cmaitte CO Wright AMA President Willie C Drown firet Free ideat Academy end Headquartere staff mabere ooweinua Opinion foflowing conference signif icant forward etep usda AMA effort obtain lees strin gent requirements obtaining FCC Uoeue radio control flying leading op conference wee letter received fron Con iniesion calling ettention nuer aeqlem nonconforndty regulaticca wMch observed end reported F C C off ciala attending Rational Meet Olatha diacuesing letter waa specifically requested notice given AMA einbere ell radio operation non-ailitary governmental nature includ radio control flying Ie sub3eat FCC control perti nent regulatiorm must obeyed Whle thie euheot miga well point out Academy hopes obtain relaxation requirement us aay fly radio control oon sense dictate obeying law FCC ot reasonably inpected cooperate us pereiet cooperating witi Thus November 1948 Issue Model Aviation reported AMA FCC held discussions Olathe violations upshot meeting new FCC regulations would required because RC operation specifically covered existing FCC regulations Obviously basic conflict tween FCC AMA viewpoints much RC modeler should reason ably required know apparent FCC philosophy modeler clever enough build tame RC model ought have no trouble passing exami nations obtain Ham license AMA philosophy different same clever modeler ought able build use simple low-powered trans mitter receiver RC having learn skills required communications-oriented radio amateur negotiations between FCC AMA during formative years regulating RC frequencies battle lines drawn around fundamental difference viewFEDERAL COMMUNICATIONS COMM ISSION WASHINGTON 25 DC Septenber 16 1949 TO TUE SECRETARY reply refer 8032 Mr Walter Good W3NPS 9123 Eton Road Silver Spring Maryland Dear Sir Commission has received information its Engineer Charge Kansas City Lljasouri soveral occasions during period July 25 July 30 1949 permitted certain unlicensed persons participating 113th National Academy Llodel Aeronautics Lleet Naval Air Station Olathe Kansas engage portable operation enateur station violation Section 318 Communications Act 1934 amended apd Section 1228 Commissions Rules requested submit ion explanation may have youq matter tfr After Nats 1949 FCC threatened revoke Walt Goods Ham radio license allow ing unlicensed persons operate amateur station three-page reply Walt pre vented happening close call OK FCC allow unlicensed person talk radio station OK allow fly airplane May 1989 91 Radio Control R C enthusiasts have long wanted License-Free band its now equipment VERNON C MACNAIB quarter century has illegal operate radio transmitter license granted Federal Bureau currently FCC Federal Connunicalions Commission law modified June 1949 allow layman Mr John Q Public obtain license operate radio transmitter necessity being examined determine technical bnowledge radio ecen bnowing character International Morse Code Citicens Band plain citicens modrl airplane builders fliers opened June first course ceclaiss definite restrictions because transmis sions must interfere already established licensrd sercicco excerpted follows fr " Regulations governir. . As reported Model Airplane News 1950 Radio Control now Vernon Mac Nabb produced first examination-free sets operation 465 MHz frequency required type-approval tests FCC lab no home-built sets allowed operate Treasslttar aaeptetIs .ttoaatahad R5t, battacta t rlshi point second AMA/FCC meeting1948 Within two weeks after 1948 FCC vio lations letter AMA President-elect C 0 Wright visited Washington DC joined AMA meeting FCC discuss letter Attending AMA Willis Brown first AMA president active Ham Russ Nichols Walt Good chairman AMA RC Com mittee As reported AMA Model Aviation November 30 1948 recent conference Washington office FCC re vealed fact FCC genuinely terested solving unique problems brought about advent Radio Con trol flying large scale positive FCC action resulted AMA/FCC meeting June 1 1949 FCC established first Citizens Radio Service channel RC regulation specified RC flier may use frequency 465 MHz simple Citizen Band type license 465 MHz transmitter must manufactured item type ap proved FCC laboratoryno homebuilt units allowed represented good start FCC recognition modelers need examfree RC operation Some manufacturers thought 465 MHz frequency would too difficult ap ply RC because considered too high radio frequency available technology example vacuum tubes market sufficient quality used receiver small tube six-volt heater-type cath ode drew 300 mAh needed heavy battery give adequate flight life Ive told Nate Rambo used Farmpack brand battery intended radios farm achieve flight time de sired Vernon MacNabb Citizen-Ship Ra dio Corporation bolstered thorough knowledge radio technology compo nents persuaded Idea company Indi anapolis tackle transmitter re ceiver design George Fathauer engineered design help partners Sam Dick Goldstein project took better part year although much time spent FCC laboratories type approval tests made transmitter first rejected FCC because frequency drifted out toler ance temperatures below freezing After problem corrected transmitter returned FCCwhere remained such long time Mac Nabb urged Indiana senator Homer Capehart intervene Capeharts inquir ies disclosed transmitter passed tests paperwork hadnt completed approval certificate arrived three days later just time Gene Foxworthy fly Citizenship 465 MHz gear 1950 RC Natsand win MacNabb still has first RC license 465 MHz issued FCC June 26th 1950 transmitter receiver sold $3995 inexpensive con verted 1988 dollars todays market $3995 price tag would translate over $300 Through recent contacts some pioneering names early years Radio Control learned MacNabb day lives Pompano Beach FL plays golf three times week still flies little RCat 85 years age told paid Idea Company sum $500 total 465 MHz development concept tested production design Gene Foxworthy wife Martha re tired West Virginia still active RC talk weekly Ham ra dios Gene designed first mechanical parts MacNabb gear well doing test flying Goldstein brothers earned PhD physics theyre both professors astronomy University Vir ginia other Cnlifornia Obviously high-powered devel opment team Still FCC RC violations1951 Andrews Field near Washington DC 1951 FCC again alleged improper us age amateur frequency RC again issued warning letters happened CD RC event violation cited spent consider able time conversing FCC inspec torpartly divert him shutting down event before finished flying Al though ploy worked didnt prevent letter reprimand came through later stating RC opera tor must have Ham license However FCC stopped short taking license away thank goodness Participants 1951 Nats RC event came up creative roundabout solu tion operator licensing problem lo cal Ham operated unlicensed RC transmitters holding controls hand pushing buttons re sponse voice commands pilot feasible way completing RC event satisfying local FCC spector hardly satisfactory modelers viewpoint Up time except re cently approved 465 MHz gear Ham frequencies available RC use As abundanfly clear cited examples amateur frequencies still re quired Ham operator license spite awkwardness conform ing Ham operator rules owe much thanks Ham community its contri butions pioneering early RC planes electronics efforts made possi ble non-Ham experimenters join advancing tide development RC Air craft Ross Hull Byron Goodman Clinton DeSoto others ARRL Head quarters staff deserve mention Turning operator question newly acquired 465 MHz RC channel no firm guidelines set forth owner 465 MHz gear al lowable operator controls May owner hand transmitter friend try controls Since Citizens Radio Ser vice rules clear point FCC modified request AMA shortly after 465 MHz came un Continued page 198 92 Model Aviation England past three years 61 49 both suitable model also believe solid 45 Royal OS suit ably de-tuned would plenty power current setup Merco 6155 285 venturi SST silencer 10 holes open no pressure Taffinders 5% nitro PA fuel 114 x 6 Bolly three-blade prop engine has two 020 head gaskets added further soften four-cycle/twocycle break combination gets through pattern using just 3% oz fuel Lines 70 ft 018 cable model weighs 64 oz current trim finish see Sig dopenitrate clear base followed butyrate colorover silkspan wing 56-oz Sig glass cloth epoxy everywhere else am com pletely convinced glass cloth epoxy way go speed strength fuel-proofing stability finish As far can tell light lighter tra ditional dope-and-paper finish have very good results using Loctite Finishing Epoxy cloth stuff sands like chalk leaves very little material plane use dope colors nitrate bonding coat must first applied over epoxy butyrate wont adhere directly epoxy very well usually spray two coats nitrate clear over sanded epoxy-glass surface sand lightly spray filler coat talc nitrate After wet-sanded 400-grit paper spray colors last thought build model again would add another inch inch-and-a-half tail moment length would increase elevators groove leverage would also look scalelike may wish incorpor ate change own T-60 II Fly safe fly quiet contact Don McClave 221 NW 2nd Ave Suite 300 Portland OR 92709 find out can join PAMPA association model Stunt fliers enthusiasts responding advertisers mention read about ModelAviation Frequency Battle/Good Continued page 92 der CRS umbrella Under new regu lation persons other owner would allowed operate RC transmitter owners permission fore stalled possible repetition mis understandings concerning piloting occurred modelers using ama teur radio frequencies frequency home-built RC gear 1949-1952 Gratified though 1949 have 465 MHz frequency ap proved RC use some us felt strongly still worthwhile pursue fre quency allocation simple home-built gear almost three years before FCC handed us victory second fa vorable ruling concerning RC frequency us age permitting home-built gear dispens ing requirement examina tion story achieved C/LNewR/C IHANGERJCATALOG Kits OR Plans I Innovative InexpensiveI Quick & Easy Build rnttttNrrr Ut QUICK & LIVELY SPORT RIPLASIE GREAT FOR SMALL FIELDSOr d e r y o u r s t o d y I gned new ton 074 Queen nee engine $2 ISpecifications Wing Span 26 Wing Area 275 Sq Length 25 Loading 13 02/Sq Ft. Weight 11/2 Lbs I Radio 4Channel micro servos Expeneote aileron trainer qualifies pilot sleek look ing airplane Sinpie durable rectangular 2spar nheeted wings sheeted hon type fonelage nolid tail surf aces pre-cut AAA balsa ply full-sian illustrated plans STANGEL ENTERPRISES conplete instructions hardware package wheels ftc p 0 BOX 336 Ml EAA Ilana $4995 $35O 5kM Plans Only S995cSllO 5kM MEMBERWAUKEIHA W SCONS N 0 8 1336 AMJ 198 Model Aviation K&S METAL CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture f carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises 2540 RIDGE ROAD LANSING ILLINOIS 60438 Phone 312-895-8151 Aluminum/Brass/Copper Tubing & Shapes Music Wire Tos Soldenng Irons Silk Silk Span Finishing Matenals Send 25 br catalog KASigring A017 W ROfli *aat goal follows 27255 MHz frequency desig nated FCC use Industrial Scientific Medical ISM band indus trial controls scientific experiments medical applications such diathermy practice however other users excludedso much frequency known unofficially FCC Garbage Band sensed despite hangers-on already acquired licensing con struction requirements 27255 MHz frequency would minimalif could demonstrate channel would work RC After British modelers using 27 MHz RC since 1946 over three years FCC reluctant consider 27255 MHz RC some proof its work ability USA environment end FCC provided AMA Ex perimental License KG2XDA actual flight tests begin February 1950 July 1950 over 100 flights made Washington DC area oaly two cases apparent interference flight planeand no crashes However unconvinced local tests gave broad enough data spread FCC suggested supplemental flight tests conducted other areas agency extended KG2XDA li cense nine AMA members across USA provided 200 additional flights Most modelers members AMAs first RC Committee covered both RC contest rules frequencies Chairman Walt Good Bethesda MD Clay Freese Chicago IL William Stel mach Ed Rockwood Palo Alto CA Dick Schumacher Van Nuys CA Warren Bartlett Detroit MI Harry Geyer Jim Schenck Pittsburgh PA Ed Lorenz Hyde Park NY midyear 1951 eight 300 tests completed marred glitch es considered reason able proof satisfactory RC operation 27255 MHz test Warren Bartlett tentionally flew near hospital using diathermy equipment 27 MHz frequency established 1000 ft too close causing glitches plane mile proved adequately safe distance showing no interference experimental radio gear homemade modelers using crystal control less five watts some cases modified 52MHz RC rigs formerly used Ham RCers Stepping back early 1951 over 200 flights completed felt time FCC engineers being much too conservative asking test flights much too slow getting started drafting some simple 27 MHz rules discussed situation lunching Dave Rabenhorst John Hopkins Lab both worked As both mod eler engineer clearly understood picture Any suggestions Dave asked said yes recommending go higher FCC organization speak di rectly seven FCC commis sioners final voters FCC ac tions Note FCC established Congress 1934 seven com missioners appointed US Presi PLAIN CRADLE-2 AlsoPurchase local hobby shop order direct~tet0 j3 Completely Fusiproof 6 Wide Fuselage Unbreakable es Flat Perfect Field Shop Same Day Shipping Nest eetIefIe return unused lt fuN refund Marty BerrSend $1796 plus $200 shipping handling 94 Stonefield Trail South Windsor CT 06074114 end 113 Scale Sizes 5 plus $200 S & H Want go vertical flintjet Series 04 ikytank FOf Tile shark sill allon jetlike performnc whO nor hassle ducted k5 enpens Both kits balsa cuounractios nit h spar wings y can act ommoda te standard mini nero o h channel radi nsyntens nih accept 20 2y nine engines noceptinna pyrforsancesset 21 25 rear en haunt enginen Thy ik uomesbmt docile inapt spea ds ki tnare mediate flyer ie offer plans canopies forA-4 SkyhewkF-20 Tigeraherk uisb airatch build Shifi Plans3k slug uput3k0000 soun Canopy $1000 Flawn only 400 sq area 330 sq area Other products available Poel Isjeitinn lireus 3f tenath 30 length Fans lain ginard Pnpes Insonatuon flodel Pro$4500 s/fl$4000 S/f doctu 1111 Isis B Plans Send check Money Order coo add $3- FL flea add 6% sales tax3055814477 PARRISH AIRCRAFT & Scale Models 1125 SW 49th Tar. 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$IC 5K20 $K720 fans $CDF-t $1996 Navy P40-i Skyray 1% e ength ing span 10 lbs oh $IC actible landing anar $CDF-2 6 Sill EPlinger Feandine Menebee AMA 14PF5 Hall Fame Prices lot conrpleea plans sub assanebly detailed parts lists Add $200 tee MaIlIng Tuba SeedIer brechura ahead crowd new broobere showing new Plan Sets 1989 Seed $1 etondable yost 1st order1 WE TECHNICAL SERVICES PO Box 76884-A Atlanta GA 30328 dent Sounds great DaveHow get speak Well said stepfather Sen ator Charles Tobey New Hampshire Im sure can arrange upon Dave stepped phone called senators office turned asked want appointment commissioner afternoon morrow decided tomorrow meeting FCC Commissioner George Sterling spring 1951 turning point acquisition 27255 MHz frequency RC As fellow DCRC member Carl Cessna walked down hall commis sioners office FCC staff members gawked RC plane toting Sterling gracious understanding probably because quickly learned active Ham operator since 1912 understood technical radio pects ease knowledge FCC commissioner hold Ham license Most appointees politically affiliated connected radio broadcast industry both As side note Ive just read QST Amateur Radio Journal January 1988 Sterling WlAE remains active Ham home Maine today five Hams got licenses 1912 still active today After carefully examining planes RC gear listening report AMAs flight test program 27255 MHz Sterling responded one-page sum mary proposal pushing FCC staff response posi tive believe reasonable plan maybe restrictive neces SUPER DELUXE PRE-BUILT KITR 1 Carbon Fiber reinforced Epoxy Glass Fuselage• 2 FACTORY SHEETED Carbon Fiber reinforced Ultralight Honeycomb Plug-in Wingrr 3 FACTORY SHEETED adjustable 8 removable stab 4 Tn conventional retract 5 Pre-cut firewallOnly AVAILABLE IN BASIC KIT ONLY $1Length-6067$450 Carbon Fiber Reinforced Fuselage Wing Area- 700 sq Latest Japanese Pattern Design n byWegi 775 850 bs Top Japanese Pilot able FAI AMAEttg ye 0cc Please add $15 shippingPATTERN TEK 1408298 0311 will happy pass along favorable recommendations Shortly thereafter AMA received preliminary draft rule-making Docket #10086 modified clude 27255 MHz frequency RC course AMA commented favorably Simple RC rules arrive1952 Novem ber 1951 final proposal rule-making Docket #10086 appeared amend ment Part 19 Rules Citizens Ra dio Service included AMA plan adopting 27255 MHz frequency RC Since no objections received FCC regulation became official March 24 1952 long struggle AMA finally won approval first homebuilt RC frequency following regulations applied new Class C stations 1 Frequency27255 MHz crystal control assure accuracy 2 Powerfive watts maximum 3 Emissionson/off carrier tone mod ulation 4 Type approval required crystal-controlled transmitters Thus homebuilt gear OK 5 license simple FCC Form 505 flier sends nearest FCC fice No exams required After five years effort part AMA FCC March 24 1952 great day indeed About month after 27255 MHz fre quency made available received letter FCC Commissioner Sterling enclosed clipping Washington Evening Star newspaper about Reginald Denny well-known movie star produced RC target drones US military during WW II Denny now proposing use radio equipment RC model fliers According clip ping Denny approached FCC .. turned down cold Exactly never found out note attached clipping FCC responding advertisers mention read about Model Aviation 200 Model Aviation ZAP UNIVERSITY COLLEGE OF GLUE KNOWLEDGE ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX AH Designs47 AMA Membership65 Academy Aviation R&D10 Ace Radio Control9 Aerodrome Models188 Aerospace Composite Prod43 Airtronics6-7 AI-tec Su-pr-Line Prod180 Altech Marketing179 181 183 American Jr Aircraft Co22 American Sailplane Des66 Astro Flight15 Authorized RC Service57 B&P Associates47 Quay Barber Models170 Berkeley Trading Co178 Marty Berr156 199 Blue Ridge Mach & Tools171 Blue Sky Enterprises169 Bolar Heli Research173 Dave Brown Products41 Byron Originals95 104 Campbell Tools Co173 Campbells Custom Kits166 Circus Hobbies186-188 Cleveland Model Supply16 Colorado Model Products8 Composite Aircraft Eng49 CompuServe175 Control Systems Labs161 Coverite1 63 Cox Hobbies101 Crenshaw Aero176 Culpepper Models Inc49 DGA Designs67 D&R Aircraft Mfg156 Davey Systems Corp157 Tom Dixon190 Dodgson Designs166 Doylejet171 Du-Bro Products Inc38 55 198 Elden-Ken Electronics197 FAI Model Supply189 FHS Supply Inc5 Fiberglass Master53 Fiorenze Hobby Center173 First US RC Flight School197 Flights Fancy Aeromodel174 Florlo Flyer177 Flyline Models197 Fourmost Products51 Fox Mfg Co162 Fults Dual Struts22 Futaba Corp America21 204 G&A Products51 GM Precision Products66 Gas Model Products189 Gator RC Products64 Carl Goldberg Models96 203 Gorham Model Products12 Paul K Guillow Inc174 Hi Performance Sailplanes173 High Performance Models55 High Sky67 Hobby Barn154-155 Hobby Dynamics111 114 Hobby Horn18 Hobby Lobby International17 Hobby Shirts & Hats197 Hobby Woods57 MS Atlanta184 Ikon Northwest Co39 Indy RC Sales Inc158-160 InVenture180 JR Radios111 114 JTec170 Jan Crystals18 Larry Jolly Model Products156 Jomar20 22 KD Grapphics42 K&B Mfg177 K&S Engineering198 K W Enterprises171 Kingsway Enterprises196 Kircher RC Products169 Kraft Midwest166 Kustom Kraftsmanship172 Kyosho185 Leisure Electronics163 Lone Star Models167 MACS Products64 MARC Show173 Memphis Model Market168 Jim Messers172 Micro Mark34-35 Midwest Products23 Model Rectifier Corp . Coy 2&3 819 Sid Morgan Plans182 Walt Moucha Models16 Mutchlers Hobbies164-165 NF Video Library42 NEPRO176 Nayco Co20 North Products169 Northeast Aerodynamics4 PacerTech12182191200 Paper Airplanes Intl172 Parrish Aircraft199 Pattern Tek200 John Peck Leisure Prod176 Pelican Enterprises198 Penn Valley Hobby Center169 Performance Hobbies176 Performance Products Ultd190 Perkins Avionics41 Phillips Aircraft Co182 Pica Products10 Planes & Things170 Polks Hobby Pot OGold169 Progress Mfg Co177 Pro-Tune Corp168 RB Bunch57 RC Buyers Guide22 RC Extras190 RJL Industries 66 Ragan/Barker Group47 Red Max Fuel5 Reynolds Jewelry181 Robart39 Robbe Model Sport11 Roun Tuit ..196 SAC66 SR Batteries153 Safety Plus16 53 Satellite City13 Scale Model Research171 Scale Plans & Photo Ser169 Sermos RC Snap Connectors64 Shamrock Competition Imports 9 Sheldons Hobby Shop20 Sig Mfg Co4 109 191 Skyline Hobby Mfg. Bob Smith Industries4 49 Square Cut Tools51 Stangel Enterprises198 Sullivan Iroducts102-103 Sunshine Hobbies67 Superior Aircraft174 Swanson Assoc20 Tatone Products Co178 Tidewater Hobby Enterprises161 Toledo RC Exposition171 Top Flite Models Inc113 Tower Hobbies192-195 Trader Jacks Buy Sell55 Tru-Turn189 VL Products67 Vinylwrite Custom Lettering64 WE Technical Services200 Williams Brothers53 Windsor Propeller Co43 Wing Mfg Co178 World EnginesCover 4 Nick Ziroli Models196 ZZ Enterprises57 Commissioner Sterling wrote Dr Good has fellow Denny Thats what call first-rate commis sioner modelers owe Sterling great debt successful outcome First Battle encouraging 1952 ac quired two RC channels 465 MHz 27255 MHz well simple no-exam permits just what wanted beginning EAA/Wischers Continued page 108 temperatures days Besides water demand high two survi val items heat humiditydeli ciously top-heavy soft serve cones May 1989 201
Edition: Model Aviation - 1989/05
Page Numbers: 88, 89, 90, 91, 92, 198, 199, 200, 201
Battle RC Frequencies now almost seems like right American switch RC transmitter fly plane hearts content its Its privilege right fought long hard modeling predeces sors over 40 years ago Part three-part series U Walt Good HOW WOULD like fly Radio Con trol AMA Nationals upon arrival discover 268 RC contes tantswith over 200 fre quency situationat 1958 Nats Chicagovividly illustrates painful steps AMA encountered its struggle obtain RC channels rap idly growing family RC fliers story early years fly ing RC frequencies battles fought obtain first RC chan nels FCC Over span 40 years Academy Model Aeronautics has en gaged least six confrontations Federal Communications Commission ac quire new RC channels protect channels already gained Equally impor tant fliers needed channels did require examinations licensing first battle begins acquisition single examination-free RC frequency last skirmish wont over until AMA has achieved its long-term goal gaining 80 exclusive RC channels Please note personal report based viewed events active participant almost phase por trayed story hope accurate its undoubtedly limited weakening memory hundreds ragged incom plete files gladly leave task filling gaps other generous souls participated efforts First look earliest beginnings 88 Model Aviation 4 authors twin brother Bill 1937-vintage transmitter Power output 100 watts note two big tubes An AC power cord runs outlet inside hangar author 1938 RC Guff model Note open side door revealing receiver relay Single-channel control rudder done using rubber-powered escapement THE EVENING STAR WMhJngton D CA-iSFEDERAL COMMUNICATIONS COMMISSION WEOSEODAY APRIL U 5952 Denny Envisions Radio Co -I es FutureFrom CEO E STERLING perfectly poHible soi recelvero thatCommissioner today model plane fans fly could get cost dow____________________________________________________________[v32][b2125429121100]] about 824 TheRemarks theIr creations radIo control mltters would much exAQA/Je Instead cIrcling wIre pensIve about $180 r ' tether planned sell ThIs Informed opln- clubs members Informed opIn can c wIth transmItters whlIIAJ0A Ion Iteginald ontrol plane Denny star d take five radio chan % stage andneis operate transmitter... screen Mr rudder control nyelevators etc took it1 i e about radioup Federal Communca 8 controlledtlons CommissIon tuinedF j down cold 11i models In-- vented Today Infinite numberl4 used , ultra high frequency channels e tar- available radIo con F Competition among builders IdAUINGOON 0 0 get practice tolled plane event meet ~ h ~runer planes has made pos guided - wd FCC has alIf D07aictemporary use 21251 possible new departuref. described megacycle wave band dem . model builders asa utopia could 1send planes fsr eyep ould see bF-be Above Reginald Denny movie star developer RC target drones during WW ii proposed FCC establish frequencies hobby RC planes Mr Denny claimed turned him down cold George Sterling figures apparently didnt know new 27255 MHz RC channel gone effect month earlier Below left L-R Walt Good Reginald Denny Bud Chapman lunching Paramount Studios 1938 Walt telling Denny about hobby RC planes Bud 1938 California Free Flight Gas Model Champ listens As FF Gas winners Walt Bud got airplane trips Hollywood tour Paramount Studios promoting movie Men Wings Right Walt Good Dorothy Lamour showboat set St Louis Blues Bud Walt parts movie extras grandstand audience scene Pre-World War W II RC Contests 19371941 Lets step back years just prior WW II see early RC fliers ac quired frequencies fly 1937 Nats Detroit first Nats RC event held RC pilots used amateur radio frequenciesprimarily 56 60 MHz six Nats entries acquired necessary amateur Ham licenses partners done transmitter signed air license holder sending call sign Morse code before flight signed off after flight During actual flight model builder part team used control buttons steer plane Legally speaking non-Ham al lowed operate transmitter overlooked days stories subject later Thus five RC Nats held 1937 through 1941 Ham frequencies used exclusively World War II shut down amateur radio en tirely 1942 1946 Ham transmit ters disabledas Radio Control hobby erstwhile RC hobbyists engaged military service work ing days nights weekends confiden tial hush-hush projects Uncle Sam After World War II 1946-1952 im mediate postwar years RC event re vived 1946 AMA Nats Wichita KS five RC entries year pilots flew great enthusi asm Again amateur radio frequencies used FCC shifted prewar 56-60 MHz band 50-54 MHz after war regulatory body still required Ham li cense obtain such license pass code test electronics test test radio regulationsnot easy task modeler wanted simple radio equipment simple radio license What RC hobbyists needed able obtain license exclusively RC flying examination Examination-free RC frequencies 1946 British modelers led way May 1989 89 RC competitions rorooo o 4p tosuoi 04oi, hr rho itoi ho nrrdI cidre Thr chip drrrol heir hop crc o ocrirroir crc ii Verrirerit IrrrloOotert cor hiro lrrrorvrry. rr horroorrrrl 004cr errilo C rrrrrrrlrtOricP C cirriricod rrrrroirrr arid Irrophr thrirt irk pp Vrorr itrrrirrit Iii di irk ni rkiirl ii irl hip diii hirk iii -A dli icud urrililii rrrurorr ii1 0did ii crc C CI cr Cc rIpohd iiirc l-I ivr crriiu i i1 As appeared July 1937 issue QST Ross Hull Byron Goodman assemble 13-fl RC Glider West Hartford CT along Clinton DeSoto staff QST amateur radio magazine introduced RO hobby radio amateurs securing examination-free RC license 27 MHz 460 MHz done means simple exchange let ters between D W Allen Society Model Aero Engineers British counter part AMA British Post fice represented Engineer-in-Chief Radio Branch Mr C E Clarke Mr Clarkes short reply Allen dated November 8 1946 sanctioned follow ing frequencies RC model use Britain Frequency #14605 MHz within Hz Frequency #22766-28 MHz Additional specifications Clarkes let ter follows Maximum input power five watts No special license required Use equipment RC communication Modelers US felt optimistic British could obtain RC frequencies quickly expected little no delay se curing similar response Federal Communications Commission FCC Un fortunately wrong Several years pass before obtained similar RC use frequencies America First Battle RC Frequencies 1946 living Washington DC 1946 Russ Nichols executive diFEDERAL COMMUNICATIONS COMMISSION WASHINGTON 25 DC November 4 1948 ARORESS ALL COMMUNICATIONS reply refer 6104 Loademy Model Lsronautics l03 Conxeoticut Lvenue NW Washington 6 D 0 Gentlemen Observation made during National Model Airoraft Meet Naval Air Station Olathe Kansas August 4 8 1948 inclusive revealed number ireg1slarities oomneo tion use 01 amateur stations purpose remotely controlling model aircraft radio intended t oitationa will jasued instance However 1l appreciated organization calls attention members foflowing omissions appear quit prevalent airt emphasizes amat eur stations operated purpose applicable rules should adhered Thzring course Meet foflowing omissions As result FCC inspectors report AMA received letter FCC outlining violations committed RC contestants 1948 Nationals held Olathe KS rector AMA immediately dis cussed modelers RC frequency needs him Having worked several gov eminent agencies before joining AMA Russ familiar some proce dures suggested arrange visit Federal Communications Commis sion discuss matter RC frequencies face-to-face January 1947 letter FCC AMA ouflined its RC airplane needs fashion similar British SMAE letter requested exploratory meeting first meeting held April 30 1947 Eight FCC engineers representing seven FCC departments attended Russ representing AMA pos itive result FCC suggestion newly contemplated Citizens Radio Service might able offer channel RC Af ter several visits FCC personnel year Russ thought making some progressalthough still ob tained no RC frequencies 1947 Nats Minneapolis seven RC entries number suc cessful flights RC planes growing up However still using Ham fre quencies concomitant requirement amateur license just gotten Ham license after three attempts months pass code test must admit thing hurt watching 10year-old kid zip through code test first try As consolation finished writ ten parts electronics regulations exams before did Follow-up meetings between FCC AMA discuss simple no exam RC frequencies equally unproductive 1948 drew close still achieved nothing tangible Admittedly bit slow learning deal FCCs bureaucratic system however about get some action RC modelers charged FCC viola tions1948 1948 Nats August Olathe KS saw 14 RC entries demon strated numerous flights also scored first FCC observers appeared Nats showed interest RC event expressed concern AMA November 1948 letter detailing number violations FCC regulations through improper use amateur sta tions no citations made against Ham operators time FCC dicated might future ci tation type could result withdrawal Hams license FCC finally gotten FCCs attention respect RC planes frequen cies Ironically wasnt sort atten tion hoped FCC observers learned later inspectors local field office simply doing duty As described FCC report fol lowing six violations cited FCC inspectors During course meet fol lowing omissions noted 90 Model Aviation noted 1 No provision kind made measurement emitted frequency violation Section 12135 rules 2 some instances amateur stations operated unlicensed persons licensed amateurs stood simply operated unlicensed persons li censed operator attendance violation Section 1228 rules either case 3 Failure identify amateur station transmitting control signals violation Section 12159 rules 4 Although amateur stations being operated portable stations Olathe KS overall period 48 hours licensees submitted notices portable operation Commissions Engineer Charge Kansas City MO violation Section 1291 rules 5 Several amateur station transmitters observed operating outside signed amateur frequency bands viola tion Sections 12111 12113 rules 6 Little no effort made maintain proper station log violation Section 12136 rules AMA took FCC report Ham radio violations 1948 Nats seriously cautioning its Ham users 50 MHz band RC follow stated FCC regu lations Although several violated rules easily correctible regula tion opinion haunt Ham RC fliers 40 yearsand present day Section 1228 allowed licensed operator Ham voice station hand microphone person wished speak transmit voice via radio prohibited other mode emission such Morse codes on-off signals tones sent anyone other licensed operator impact RC flier Ham operator permitted hand RC control box anyone elseeven own son friendfor steering plane rule still effect today FCC Violations1949 second 1949 letter FCC cited new amateur ra dio violations letter sent AMA directly charged permitting certain unlicensed persons participating 18th National AMA Meet Naval Air Station Olathe KS engage portable operation amateur station W3NPS violation Section 1228 Commissions rules two-page reply FCC must have effective because let offthis time Its possible took considera tion fact Rudder Bug won RC event year doubt Although viewpoint RC modeler some FCC-cited violations might seem like peccadilloes prov able infringements rules effect amateur two-way communication nonvoice signals clearly deci sively illustrated certain FCC rules Ham operation simply incom patible Radio Control modeler practice FCC IMrZT DE DK1n5 recent conference Weahington office Federal C nicatione Ciaioc brought out fact FCC Ie genuinely terested solving unl4ue problem brought about advent radio control flying Urge scale Attending rpreaentlng Academy Dr Qood Chairmen Radio Control Cmaitte CO Wright AMA President Willie C Drown firet Free ideat Academy end Headquartere staff mabere ooweinua Opinion foflowing conference signif icant forward etep usda AMA effort obtain lees strin gent requirements obtaining FCC Uoeue radio control flying leading op conference wee letter received fron Con iniesion calling ettention nuer aeqlem nonconforndty regulaticca wMch observed end reported F C C off ciala attending Rational Meet Olatha diacuesing letter waa specifically requested notice given AMA einbere ell radio operation non-ailitary governmental nature includ radio control flying Ie sub3eat FCC control perti nent regulatiorm must obeyed Whle thie euheot miga well point out Academy hopes obtain relaxation requirement us aay fly radio control oon sense dictate obeying law FCC ot reasonably inpected cooperate us pereiet cooperating witi Thus November 1948 Issue Model Aviation reported AMA FCC held discussions Olathe violations upshot meeting new FCC regulations would required because RC operation specifically covered existing FCC regulations Obviously basic conflict tween FCC AMA viewpoints much RC modeler should reason ably required know apparent FCC philosophy modeler clever enough build tame RC model ought have no trouble passing exami nations obtain Ham license AMA philosophy different same clever modeler ought able build use simple low-powered trans mitter receiver RC having learn skills required communications-oriented radio amateur negotiations between FCC AMA during formative years regulating RC frequencies battle lines drawn around fundamental difference viewFEDERAL COMMUNICATIONS COMM ISSION WASHINGTON 25 DC Septenber 16 1949 TO TUE SECRETARY reply refer 8032 Mr Walter Good W3NPS 9123 Eton Road Silver Spring Maryland Dear Sir Commission has received information its Engineer Charge Kansas City Lljasouri soveral occasions during period July 25 July 30 1949 permitted certain unlicensed persons participating 113th National Academy Llodel Aeronautics Lleet Naval Air Station Olathe Kansas engage portable operation enateur station violation Section 318 Communications Act 1934 amended apd Section 1228 Commissions Rules requested submit ion explanation may have youq matter tfr After Nats 1949 FCC threatened revoke Walt Goods Ham radio license allow ing unlicensed persons operate amateur station three-page reply Walt pre vented happening close call OK FCC allow unlicensed person talk radio station OK allow fly airplane May 1989 91 Radio Control R C enthusiasts have long wanted License-Free band its now equipment VERNON C MACNAIB quarter century has illegal operate radio transmitter license granted Federal Bureau currently FCC Federal Connunicalions Commission law modified June 1949 allow layman Mr John Q Public obtain license operate radio transmitter necessity being examined determine technical bnowledge radio ecen bnowing character International Morse Code Citicens Band plain citicens modrl airplane builders fliers opened June first course ceclaiss definite restrictions because transmis sions must interfere already established licensrd sercicco excerpted follows fr " Regulations governir. . As reported Model Airplane News 1950 Radio Control now Vernon Mac Nabb produced first examination-free sets operation 465 MHz frequency required type-approval tests FCC lab no home-built sets allowed operate Treasslttar aaeptetIs .ttoaatahad R5t, battacta t rlshi point second AMA/FCC meeting1948 Within two weeks after 1948 FCC vio lations letter AMA President-elect C 0 Wright visited Washington DC joined AMA meeting FCC discuss letter Attending AMA Willis Brown first AMA president active Ham Russ Nichols Walt Good chairman AMA RC Com mittee As reported AMA Model Aviation November 30 1948 recent conference Washington office FCC re vealed fact FCC genuinely terested solving unique problems brought about advent Radio Con trol flying large scale positive FCC action resulted AMA/FCC meeting June 1 1949 FCC established first Citizens Radio Service channel RC regulation specified RC flier may use frequency 465 MHz simple Citizen Band type license 465 MHz transmitter must manufactured item type ap proved FCC laboratoryno homebuilt units allowed represented good start FCC recognition modelers need examfree RC operation Some manufacturers thought 465 MHz frequency would too difficult ap ply RC because considered too high radio frequency available technology example vacuum tubes market sufficient quality used receiver small tube six-volt heater-type cath ode drew 300 mAh needed heavy battery give adequate flight life Ive told Nate Rambo used Farmpack brand battery intended radios farm achieve flight time de sired Vernon MacNabb Citizen-Ship Ra dio Corporation bolstered thorough knowledge radio technology compo nents persuaded Idea company Indi anapolis tackle transmitter re ceiver design George Fathauer engineered design help partners Sam Dick Goldstein project took better part year although much time spent FCC laboratories type approval tests made transmitter first rejected FCC because frequency drifted out toler ance temperatures below freezing After problem corrected transmitter returned FCCwhere remained such long time Mac Nabb urged Indiana senator Homer Capehart intervene Capeharts inquir ies disclosed transmitter passed tests paperwork hadnt completed approval certificate arrived three days later just time Gene Foxworthy fly Citizenship 465 MHz gear 1950 RC Natsand win MacNabb still has first RC license 465 MHz issued FCC June 26th 1950 transmitter receiver sold $3995 inexpensive con verted 1988 dollars todays market $3995 price tag would translate over $300 Through recent contacts some pioneering names early years Radio Control learned MacNabb day lives Pompano Beach FL plays golf three times week still flies little RCat 85 years age told paid Idea Company sum $500 total 465 MHz development concept tested production design Gene Foxworthy wife Martha re tired West Virginia still active RC talk weekly Ham ra dios Gene designed first mechanical parts MacNabb gear well doing test flying Goldstein brothers earned PhD physics theyre both professors astronomy University Vir ginia other Cnlifornia Obviously high-powered devel opment team Still FCC RC violations1951 Andrews Field near Washington DC 1951 FCC again alleged improper us age amateur frequency RC again issued warning letters happened CD RC event violation cited spent consider able time conversing FCC inspec torpartly divert him shutting down event before finished flying Al though ploy worked didnt prevent letter reprimand came through later stating RC opera tor must have Ham license However FCC stopped short taking license away thank goodness Participants 1951 Nats RC event came up creative roundabout solu tion operator licensing problem lo cal Ham operated unlicensed RC transmitters holding controls hand pushing buttons re sponse voice commands pilot feasible way completing RC event satisfying local FCC spector hardly satisfactory modelers viewpoint Up time except re cently approved 465 MHz gear Ham frequencies available RC use As abundanfly clear cited examples amateur frequencies still re quired Ham operator license spite awkwardness conform ing Ham operator rules owe much thanks Ham community its contri butions pioneering early RC planes electronics efforts made possi ble non-Ham experimenters join advancing tide development RC Air craft Ross Hull Byron Goodman Clinton DeSoto others ARRL Head quarters staff deserve mention Turning operator question newly acquired 465 MHz RC channel no firm guidelines set forth owner 465 MHz gear al lowable operator controls May owner hand transmitter friend try controls Since Citizens Radio Ser vice rules clear point FCC modified request AMA shortly after 465 MHz came un Continued page 198 92 Model Aviation England past three years 61 49 both suitable model also believe solid 45 Royal OS suit ably de-tuned would plenty power current setup Merco 6155 285 venturi SST silencer 10 holes open no pressure Taffinders 5% nitro PA fuel 114 x 6 Bolly three-blade prop engine has two 020 head gaskets added further soften four-cycle/twocycle break combination gets through pattern using just 3% oz fuel Lines 70 ft 018 cable model weighs 64 oz current trim finish see Sig dopenitrate clear base followed butyrate colorover silkspan wing 56-oz Sig glass cloth epoxy everywhere else am com pletely convinced glass cloth epoxy way go speed strength fuel-proofing stability finish As far can tell light lighter tra ditional dope-and-paper finish have very good results using Loctite Finishing Epoxy cloth stuff sands like chalk leaves very little material plane use dope colors nitrate bonding coat must first applied over epoxy butyrate wont adhere directly epoxy very well usually spray two coats nitrate clear over sanded epoxy-glass surface sand lightly spray filler coat talc nitrate After wet-sanded 400-grit paper spray colors last thought build model again would add another inch inch-and-a-half tail moment length would increase elevators groove leverage would also look scalelike may wish incorpor ate change own T-60 II Fly safe fly quiet contact Don McClave 221 NW 2nd Ave Suite 300 Portland OR 92709 find out can join PAMPA association model Stunt fliers enthusiasts responding advertisers mention read about ModelAviation Frequency Battle/Good Continued page 92 der CRS umbrella Under new regu lation persons other owner would allowed operate RC transmitter owners permission fore stalled possible repetition mis understandings concerning piloting occurred modelers using ama teur radio frequencies frequency home-built RC gear 1949-1952 Gratified though 1949 have 465 MHz frequency ap proved RC use some us felt strongly still worthwhile pursue fre quency allocation simple home-built gear almost three years before FCC handed us victory second fa vorable ruling concerning RC frequency us age permitting home-built gear dispens ing requirement examina tion story achieved C/LNewR/C IHANGERJCATALOG Kits OR Plans I Innovative InexpensiveI Quick & Easy Build rnttttNrrr Ut QUICK & LIVELY SPORT RIPLASIE GREAT FOR SMALL FIELDSOr d e r y o u r s t o d y I gned new ton 074 Queen nee engine $2 ISpecifications Wing Span 26 Wing Area 275 Sq Length 25 Loading 13 02/Sq Ft. Weight 11/2 Lbs I Radio 4Channel micro servos Expeneote aileron trainer qualifies pilot sleek look ing airplane Sinpie durable rectangular 2spar nheeted wings sheeted hon type fonelage nolid tail surf aces pre-cut AAA balsa ply full-sian illustrated plans STANGEL ENTERPRISES conplete instructions hardware package wheels ftc p 0 BOX 336 Ml EAA Ilana $4995 $35O 5kM Plans Only S995cSllO 5kM MEMBERWAUKEIHA W SCONS N 0 8 1336 AMJ 198 Model Aviation K&S METAL CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture f carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises 2540 RIDGE ROAD LANSING ILLINOIS 60438 Phone 312-895-8151 Aluminum/Brass/Copper Tubing & Shapes Music Wire Tos Soldenng Irons Silk Silk Span Finishing Matenals Send 25 br catalog KASigring A017 W ROfli *aat goal follows 27255 MHz frequency desig nated FCC use Industrial Scientific Medical ISM band indus trial controls scientific experiments medical applications such diathermy practice however other users excludedso much frequency known unofficially FCC Garbage Band sensed despite hangers-on already acquired licensing con struction requirements 27255 MHz frequency would minimalif could demonstrate channel would work RC After British modelers using 27 MHz RC since 1946 over three years FCC reluctant consider 27255 MHz RC some proof its work ability USA environment end FCC provided AMA Ex perimental License KG2XDA actual flight tests begin February 1950 July 1950 over 100 flights made Washington DC area oaly two cases apparent interference flight planeand no crashes However unconvinced local tests gave broad enough data spread FCC suggested supplemental flight tests conducted other areas agency extended KG2XDA li cense nine AMA members across USA provided 200 additional flights Most modelers members AMAs first RC Committee covered both RC contest rules frequencies Chairman Walt Good Bethesda MD Clay Freese Chicago IL William Stel mach Ed Rockwood Palo Alto CA Dick Schumacher Van Nuys CA Warren Bartlett Detroit MI Harry Geyer Jim Schenck Pittsburgh PA Ed Lorenz Hyde Park NY midyear 1951 eight 300 tests completed marred glitch es considered reason able proof satisfactory RC operation 27255 MHz test Warren Bartlett tentionally flew near hospital using diathermy equipment 27 MHz frequency established 1000 ft too close causing glitches plane mile proved adequately safe distance showing no interference experimental radio gear homemade modelers using crystal control less five watts some cases modified 52MHz RC rigs formerly used Ham RCers Stepping back early 1951 over 200 flights completed felt time FCC engineers being much too conservative asking test flights much too slow getting started drafting some simple 27 MHz rules discussed situation lunching Dave Rabenhorst John Hopkins Lab both worked As both mod eler engineer clearly understood picture Any suggestions Dave asked said yes recommending go higher FCC organization speak di rectly seven FCC commis sioners final voters FCC ac tions Note FCC established Congress 1934 seven com missioners appointed US Presi PLAIN CRADLE-2 AlsoPurchase local hobby shop order direct~tet0 j3 Completely Fusiproof 6 Wide Fuselage Unbreakable es Flat Perfect Field Shop Same Day Shipping Nest eetIefIe return unused lt fuN refund Marty BerrSend $1796 plus $200 shipping handling 94 Stonefield Trail South Windsor CT 06074114 end 113 Scale Sizes 5 plus $200 S & H Want go vertical flintjet Series 04 ikytank FOf Tile shark sill allon jetlike performnc whO nor hassle ducted k5 enpens Both kits balsa cuounractios nit h spar wings y can act ommoda te standard mini nero o h channel radi nsyntens nih accept 20 2y nine engines noceptinna pyrforsancesset 21 25 rear en haunt enginen Thy ik uomesbmt docile inapt spea ds ki tnare mediate flyer ie offer plans canopies forA-4 SkyhewkF-20 Tigeraherk uisb airatch build Shifi Plans3k slug uput3k0000 soun Canopy $1000 Flawn only 400 sq area 330 sq area Other products available Poel Isjeitinn lireus 3f tenath 30 length Fans lain ginard Pnpes Insonatuon flodel Pro$4500 s/fl$4000 S/f doctu 1111 Isis B Plans Send check Money Order coo add $3- FL flea add 6% sales tax3055814477 PARRISH AIRCRAFT & Scale Models 1125 SW 49th Tar. 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$IC 5K20 $K720 fans $CDF-t $1996 Navy P40-i Skyray 1% e ength ing span 10 lbs oh $IC actible landing anar $CDF-2 6 Sill EPlinger Feandine Menebee AMA 14PF5 Hall Fame Prices lot conrpleea plans sub assanebly detailed parts lists Add $200 tee MaIlIng Tuba SeedIer brechura ahead crowd new broobere showing new Plan Sets 1989 Seed $1 etondable yost 1st order1 WE TECHNICAL SERVICES PO Box 76884-A Atlanta GA 30328 dent Sounds great DaveHow get speak Well said stepfather Sen ator Charles Tobey New Hampshire Im sure can arrange upon Dave stepped phone called senators office turned asked want appointment commissioner afternoon morrow decided tomorrow meeting FCC Commissioner George Sterling spring 1951 turning point acquisition 27255 MHz frequency RC As fellow DCRC member Carl Cessna walked down hall commis sioners office FCC staff members gawked RC plane toting Sterling gracious understanding probably because quickly learned active Ham operator since 1912 understood technical radio pects ease knowledge FCC commissioner hold Ham license Most appointees politically affiliated connected radio broadcast industry both As side note Ive just read QST Amateur Radio Journal January 1988 Sterling WlAE remains active Ham home Maine today five Hams got licenses 1912 still active today After carefully examining planes RC gear listening report AMAs flight test program 27255 MHz Sterling responded one-page sum mary proposal pushing FCC staff response posi tive believe reasonable plan maybe restrictive neces SUPER DELUXE PRE-BUILT KITR 1 Carbon Fiber reinforced Epoxy Glass Fuselage• 2 FACTORY SHEETED Carbon Fiber reinforced Ultralight Honeycomb Plug-in Wingrr 3 FACTORY SHEETED adjustable 8 removable stab 4 Tn conventional retract 5 Pre-cut firewallOnly AVAILABLE IN BASIC KIT ONLY $1Length-6067$450 Carbon Fiber Reinforced Fuselage Wing Area- 700 sq Latest Japanese Pattern Design n byWegi 775 850 bs Top Japanese Pilot able FAI AMAEttg ye 0cc Please add $15 shippingPATTERN TEK 1408298 0311 will happy pass along favorable recommendations Shortly thereafter AMA received preliminary draft rule-making Docket #10086 modified clude 27255 MHz frequency RC course AMA commented favorably Simple RC rules arrive1952 Novem ber 1951 final proposal rule-making Docket #10086 appeared amend ment Part 19 Rules Citizens Ra dio Service included AMA plan adopting 27255 MHz frequency RC Since no objections received FCC regulation became official March 24 1952 long struggle AMA finally won approval first homebuilt RC frequency following regulations applied new Class C stations 1 Frequency27255 MHz crystal control assure accuracy 2 Powerfive watts maximum 3 Emissionson/off carrier tone mod ulation 4 Type approval required crystal-controlled transmitters Thus homebuilt gear OK 5 license simple FCC Form 505 flier sends nearest FCC fice No exams required After five years effort part AMA FCC March 24 1952 great day indeed About month after 27255 MHz fre quency made available received letter FCC Commissioner Sterling enclosed clipping Washington Evening Star newspaper about Reginald Denny well-known movie star produced RC target drones US military during WW II Denny now proposing use radio equipment RC model fliers According clip ping Denny approached FCC .. turned down cold Exactly never found out note attached clipping FCC responding advertisers mention read about Model Aviation 200 Model Aviation ZAP UNIVERSITY COLLEGE OF GLUE KNOWLEDGE ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX AH Designs47 AMA Membership65 Academy Aviation R&D10 Ace Radio Control9 Aerodrome Models188 Aerospace Composite Prod43 Airtronics6-7 AI-tec Su-pr-Line Prod180 Altech Marketing179 181 183 American Jr Aircraft Co22 American Sailplane Des66 Astro Flight15 Authorized RC Service57 B&P Associates47 Quay Barber Models170 Berkeley Trading Co178 Marty Berr156 199 Blue Ridge Mach & Tools171 Blue Sky Enterprises169 Bolar Heli Research173 Dave Brown Products41 Byron Originals95 104 Campbell Tools Co173 Campbells Custom Kits166 Circus Hobbies186-188 Cleveland Model Supply16 Colorado Model Products8 Composite Aircraft Eng49 CompuServe175 Control Systems Labs161 Coverite1 63 Cox Hobbies101 Crenshaw Aero176 Culpepper Models Inc49 DGA Designs67 D&R Aircraft Mfg156 Davey Systems Corp157 Tom Dixon190 Dodgson Designs166 Doylejet171 Du-Bro Products Inc38 55 198 Elden-Ken Electronics197 FAI Model Supply189 FHS Supply Inc5 Fiberglass Master53 Fiorenze Hobby Center173 First US RC Flight School197 Flights Fancy Aeromodel174 Florlo Flyer177 Flyline Models197 Fourmost Products51 Fox Mfg Co162 Fults Dual Struts22 Futaba Corp America21 204 G&A Products51 GM Precision Products66 Gas Model Products189 Gator RC Products64 Carl Goldberg Models96 203 Gorham Model Products12 Paul K Guillow Inc174 Hi Performance Sailplanes173 High Performance Models55 High Sky67 Hobby Barn154-155 Hobby Dynamics111 114 Hobby Horn18 Hobby Lobby International17 Hobby Shirts & Hats197 Hobby Woods57 MS Atlanta184 Ikon Northwest Co39 Indy RC Sales Inc158-160 InVenture180 JR Radios111 114 JTec170 Jan Crystals18 Larry Jolly Model Products156 Jomar20 22 KD Grapphics42 K&B Mfg177 K&S Engineering198 K W Enterprises171 Kingsway Enterprises196 Kircher RC Products169 Kraft Midwest166 Kustom Kraftsmanship172 Kyosho185 Leisure Electronics163 Lone Star Models167 MACS Products64 MARC Show173 Memphis Model Market168 Jim Messers172 Micro Mark34-35 Midwest Products23 Model Rectifier Corp . Coy 2&3 819 Sid Morgan Plans182 Walt Moucha Models16 Mutchlers Hobbies164-165 NF Video Library42 NEPRO176 Nayco Co20 North Products169 Northeast Aerodynamics4 PacerTech12182191200 Paper Airplanes Intl172 Parrish Aircraft199 Pattern Tek200 John Peck Leisure Prod176 Pelican Enterprises198 Penn Valley Hobby Center169 Performance Hobbies176 Performance Products Ultd190 Perkins Avionics41 Phillips Aircraft Co182 Pica Products10 Planes & Things170 Polks Hobby Pot OGold169 Progress Mfg Co177 Pro-Tune Corp168 RB Bunch57 RC Buyers Guide22 RC Extras190 RJL Industries 66 Ragan/Barker Group47 Red Max Fuel5 Reynolds Jewelry181 Robart39 Robbe Model Sport11 Roun Tuit ..196 SAC66 SR Batteries153 Safety Plus16 53 Satellite City13 Scale Model Research171 Scale Plans & Photo Ser169 Sermos RC Snap Connectors64 Shamrock Competition Imports 9 Sheldons Hobby Shop20 Sig Mfg Co4 109 191 Skyline Hobby Mfg. Bob Smith Industries4 49 Square Cut Tools51 Stangel Enterprises198 Sullivan Iroducts102-103 Sunshine Hobbies67 Superior Aircraft174 Swanson Assoc20 Tatone Products Co178 Tidewater Hobby Enterprises161 Toledo RC Exposition171 Top Flite Models Inc113 Tower Hobbies192-195 Trader Jacks Buy Sell55 Tru-Turn189 VL Products67 Vinylwrite Custom Lettering64 WE Technical Services200 Williams Brothers53 Windsor Propeller Co43 Wing Mfg Co178 World EnginesCover 4 Nick Ziroli Models196 ZZ Enterprises57 Commissioner Sterling wrote Dr Good has fellow Denny Thats what call first-rate commis sioner modelers owe Sterling great debt successful outcome First Battle encouraging 1952 ac quired two RC channels 465 MHz 27255 MHz well simple no-exam permits just what wanted beginning EAA/Wischers Continued page 108 temperatures days Besides water demand high two survi val items heat humiditydeli ciously top-heavy soft serve cones May 1989 201
Edition: Model Aviation - 1989/05
Page Numbers: 88, 89, 90, 91, 92, 198, 199, 200, 201
Battle RC Frequencies now almost seems like right American switch RC transmitter fly plane hearts content its Its privilege right fought long hard modeling predeces sors over 40 years ago Part three-part series U Walt Good HOW WOULD like fly Radio Con trol AMA Nationals upon arrival discover 268 RC contes tantswith over 200 fre quency situationat 1958 Nats Chicagovividly illustrates painful steps AMA encountered its struggle obtain RC channels rap idly growing family RC fliers story early years fly ing RC frequencies battles fought obtain first RC chan nels FCC Over span 40 years Academy Model Aeronautics has en gaged least six confrontations Federal Communications Commission ac quire new RC channels protect channels already gained Equally impor tant fliers needed channels did require examinations licensing first battle begins acquisition single examination-free RC frequency last skirmish wont over until AMA has achieved its long-term goal gaining 80 exclusive RC channels Please note personal report based viewed events active participant almost phase por trayed story hope accurate its undoubtedly limited weakening memory hundreds ragged incom plete files gladly leave task filling gaps other generous souls participated efforts First look earliest beginnings 88 Model Aviation 4 authors twin brother Bill 1937-vintage transmitter Power output 100 watts note two big tubes An AC power cord runs outlet inside hangar author 1938 RC Guff model Note open side door revealing receiver relay Single-channel control rudder done using rubber-powered escapement THE EVENING STAR WMhJngton D CA-iSFEDERAL COMMUNICATIONS COMMISSION WEOSEODAY APRIL U 5952 Denny Envisions Radio Co -I es FutureFrom CEO E STERLING perfectly poHible soi recelvero thatCommissioner today model plane fans fly could get cost dow____________________________________________________________[v32][b2125429121100]] about 824 TheRemarks theIr creations radIo control mltters would much exAQA/Je Instead cIrcling wIre pensIve about $180 r ' tether planned sell ThIs Informed opln- clubs members Informed opIn can c wIth transmItters whlIIAJ0A Ion Iteginald ontrol plane Denny star d take five radio chan % stage andneis operate transmitter... screen Mr rudder control nyelevators etc took it1 i e about radioup Federal Communca 8 controlledtlons CommissIon tuinedF j down cold 11i models In-- vented Today Infinite numberl4 used , ultra high frequency channels e tar- available radIo con F Competition among builders IdAUINGOON 0 0 get practice tolled plane event meet ~ h ~runer planes has made pos guided - wd FCC has alIf D07aictemporary use 21251 possible new departuref. described megacycle wave band dem . model builders asa utopia could 1send planes fsr eyep ould see bF-be Above Reginald Denny movie star developer RC target drones during WW ii proposed FCC establish frequencies hobby RC planes Mr Denny claimed turned him down cold George Sterling figures apparently didnt know new 27255 MHz RC channel gone effect month earlier Below left L-R Walt Good Reginald Denny Bud Chapman lunching Paramount Studios 1938 Walt telling Denny about hobby RC planes Bud 1938 California Free Flight Gas Model Champ listens As FF Gas winners Walt Bud got airplane trips Hollywood tour Paramount Studios promoting movie Men Wings Right Walt Good Dorothy Lamour showboat set St Louis Blues Bud Walt parts movie extras grandstand audience scene Pre-World War W II RC Contests 19371941 Lets step back years just prior WW II see early RC fliers ac quired frequencies fly 1937 Nats Detroit first Nats RC event held RC pilots used amateur radio frequenciesprimarily 56 60 MHz six Nats entries acquired necessary amateur Ham licenses partners done transmitter signed air license holder sending call sign Morse code before flight signed off after flight During actual flight model builder part team used control buttons steer plane Legally speaking non-Ham al lowed operate transmitter overlooked days stories subject later Thus five RC Nats held 1937 through 1941 Ham frequencies used exclusively World War II shut down amateur radio en tirely 1942 1946 Ham transmit ters disabledas Radio Control hobby erstwhile RC hobbyists engaged military service work ing days nights weekends confiden tial hush-hush projects Uncle Sam After World War II 1946-1952 im mediate postwar years RC event re vived 1946 AMA Nats Wichita KS five RC entries year pilots flew great enthusi asm Again amateur radio frequencies used FCC shifted prewar 56-60 MHz band 50-54 MHz after war regulatory body still required Ham li cense obtain such license pass code test electronics test test radio regulationsnot easy task modeler wanted simple radio equipment simple radio license What RC hobbyists needed able obtain license exclusively RC flying examination Examination-free RC frequencies 1946 British modelers led way May 1989 89 RC competitions rorooo o 4p tosuoi 04oi, hr rho itoi ho nrrdI cidre Thr chip drrrol heir hop crc o ocrirroir crc ii Verrirerit IrrrloOotert cor hiro lrrrorvrry. rr horroorrrrl 004cr errilo C rrrrrrrlrtOricP C cirriricod rrrrroirrr arid Irrophr thrirt irk pp Vrorr itrrrirrit Iii di irk ni rkiirl ii irl hip diii hirk iii -A dli icud urrililii rrrurorr ii1 0did ii crc C CI cr Cc rIpohd iiirc l-I ivr crriiu i i1 As appeared July 1937 issue QST Ross Hull Byron Goodman assemble 13-fl RC Glider West Hartford CT along Clinton DeSoto staff QST amateur radio magazine introduced RO hobby radio amateurs securing examination-free RC license 27 MHz 460 MHz done means simple exchange let ters between D W Allen Society Model Aero Engineers British counter part AMA British Post fice represented Engineer-in-Chief Radio Branch Mr C E Clarke Mr Clarkes short reply Allen dated November 8 1946 sanctioned follow ing frequencies RC model use Britain Frequency #14605 MHz within Hz Frequency #22766-28 MHz Additional specifications Clarkes let ter follows Maximum input power five watts No special license required Use equipment RC communication Modelers US felt optimistic British could obtain RC frequencies quickly expected little no delay se curing similar response Federal Communications Commission FCC Un fortunately wrong Several years pass before obtained similar RC use frequencies America First Battle RC Frequencies 1946 living Washington DC 1946 Russ Nichols executive diFEDERAL COMMUNICATIONS COMMISSION WASHINGTON 25 DC November 4 1948 ARORESS ALL COMMUNICATIONS reply refer 6104 Loademy Model Lsronautics l03 Conxeoticut Lvenue NW Washington 6 D 0 Gentlemen Observation made during National Model Airoraft Meet Naval Air Station Olathe Kansas August 4 8 1948 inclusive revealed number ireg1slarities oomneo tion use 01 amateur stations purpose remotely controlling model aircraft radio intended t oitationa will jasued instance However 1l appreciated organization calls attention members foflowing omissions appear quit prevalent airt emphasizes amat eur stations operated purpose applicable rules should adhered Thzring course Meet foflowing omissions As result FCC inspectors report AMA received letter FCC outlining violations committed RC contestants 1948 Nationals held Olathe KS rector AMA immediately dis cussed modelers RC frequency needs him Having worked several gov eminent agencies before joining AMA Russ familiar some proce dures suggested arrange visit Federal Communications Commis sion discuss matter RC frequencies face-to-face January 1947 letter FCC AMA ouflined its RC airplane needs fashion similar British SMAE letter requested exploratory meeting first meeting held April 30 1947 Eight FCC engineers representing seven FCC departments attended Russ representing AMA pos itive result FCC suggestion newly contemplated Citizens Radio Service might able offer channel RC Af ter several visits FCC personnel year Russ thought making some progressalthough still ob tained no RC frequencies 1947 Nats Minneapolis seven RC entries number suc cessful flights RC planes growing up However still using Ham fre quencies concomitant requirement amateur license just gotten Ham license after three attempts months pass code test must admit thing hurt watching 10year-old kid zip through code test first try As consolation finished writ ten parts electronics regulations exams before did Follow-up meetings between FCC AMA discuss simple no exam RC frequencies equally unproductive 1948 drew close still achieved nothing tangible Admittedly bit slow learning deal FCCs bureaucratic system however about get some action RC modelers charged FCC viola tions1948 1948 Nats August Olathe KS saw 14 RC entries demon strated numerous flights also scored first FCC observers appeared Nats showed interest RC event expressed concern AMA November 1948 letter detailing number violations FCC regulations through improper use amateur sta tions no citations made against Ham operators time FCC dicated might future ci tation type could result withdrawal Hams license FCC finally gotten FCCs attention respect RC planes frequen cies Ironically wasnt sort atten tion hoped FCC observers learned later inspectors local field office simply doing duty As described FCC report fol lowing six violations cited FCC inspectors During course meet fol lowing omissions noted 90 Model Aviation noted 1 No provision kind made measurement emitted frequency violation Section 12135 rules 2 some instances amateur stations operated unlicensed persons licensed amateurs stood simply operated unlicensed persons li censed operator attendance violation Section 1228 rules either case 3 Failure identify amateur station transmitting control signals violation Section 12159 rules 4 Although amateur stations being operated portable stations Olathe KS overall period 48 hours licensees submitted notices portable operation Commissions Engineer Charge Kansas City MO violation Section 1291 rules 5 Several amateur station transmitters observed operating outside signed amateur frequency bands viola tion Sections 12111 12113 rules 6 Little no effort made maintain proper station log violation Section 12136 rules AMA took FCC report Ham radio violations 1948 Nats seriously cautioning its Ham users 50 MHz band RC follow stated FCC regu lations Although several violated rules easily correctible regula tion opinion haunt Ham RC fliers 40 yearsand present day Section 1228 allowed licensed operator Ham voice station hand microphone person wished speak transmit voice via radio prohibited other mode emission such Morse codes on-off signals tones sent anyone other licensed operator impact RC flier Ham operator permitted hand RC control box anyone elseeven own son friendfor steering plane rule still effect today FCC Violations1949 second 1949 letter FCC cited new amateur ra dio violations letter sent AMA directly charged permitting certain unlicensed persons participating 18th National AMA Meet Naval Air Station Olathe KS engage portable operation amateur station W3NPS violation Section 1228 Commissions rules two-page reply FCC must have effective because let offthis time Its possible took considera tion fact Rudder Bug won RC event year doubt Although viewpoint RC modeler some FCC-cited violations might seem like peccadilloes prov able infringements rules effect amateur two-way communication nonvoice signals clearly deci sively illustrated certain FCC rules Ham operation simply incom patible Radio Control modeler practice FCC IMrZT DE DK1n5 recent conference Weahington office Federal C nicatione Ciaioc brought out fact FCC Ie genuinely terested solving unl4ue problem brought about advent radio control flying Urge scale Attending rpreaentlng Academy Dr Qood Chairmen Radio Control Cmaitte CO Wright AMA President Willie C Drown firet Free ideat Academy end Headquartere staff mabere ooweinua Opinion foflowing conference signif icant forward etep usda AMA effort obtain lees strin gent requirements obtaining FCC Uoeue radio control flying leading op conference wee letter received fron Con iniesion calling ettention nuer aeqlem nonconforndty regulaticca wMch observed end reported F C C off ciala attending Rational Meet Olatha diacuesing letter waa specifically requested notice given AMA einbere ell radio operation non-ailitary governmental nature includ radio control flying Ie sub3eat FCC control perti nent regulatiorm must obeyed Whle thie euheot miga well point out Academy hopes obtain relaxation requirement us aay fly radio control oon sense dictate obeying law FCC ot reasonably inpected cooperate us pereiet cooperating witi Thus November 1948 Issue Model Aviation reported AMA FCC held discussions Olathe violations upshot meeting new FCC regulations would required because RC operation specifically covered existing FCC regulations Obviously basic conflict tween FCC AMA viewpoints much RC modeler should reason ably required know apparent FCC philosophy modeler clever enough build tame RC model ought have no trouble passing exami nations obtain Ham license AMA philosophy different same clever modeler ought able build use simple low-powered trans mitter receiver RC having learn skills required communications-oriented radio amateur negotiations between FCC AMA during formative years regulating RC frequencies battle lines drawn around fundamental difference viewFEDERAL COMMUNICATIONS COMM ISSION WASHINGTON 25 DC Septenber 16 1949 TO TUE SECRETARY reply refer 8032 Mr Walter Good W3NPS 9123 Eton Road Silver Spring Maryland Dear Sir Commission has received information its Engineer Charge Kansas City Lljasouri soveral occasions during period July 25 July 30 1949 permitted certain unlicensed persons participating 113th National Academy Llodel Aeronautics Lleet Naval Air Station Olathe Kansas engage portable operation enateur station violation Section 318 Communications Act 1934 amended apd Section 1228 Commissions Rules requested submit ion explanation may have youq matter tfr After Nats 1949 FCC threatened revoke Walt Goods Ham radio license allow ing unlicensed persons operate amateur station three-page reply Walt pre vented happening close call OK FCC allow unlicensed person talk radio station OK allow fly airplane May 1989 91 Radio Control R C enthusiasts have long wanted License-Free band its now equipment VERNON C MACNAIB quarter century has illegal operate radio transmitter license granted Federal Bureau currently FCC Federal Connunicalions Commission law modified June 1949 allow layman Mr John Q Public obtain license operate radio transmitter necessity being examined determine technical bnowledge radio ecen bnowing character International Morse Code Citicens Band plain citicens modrl airplane builders fliers opened June first course ceclaiss definite restrictions because transmis sions must interfere already established licensrd sercicco excerpted follows fr " Regulations governir. . As reported Model Airplane News 1950 Radio Control now Vernon Mac Nabb produced first examination-free sets operation 465 MHz frequency required type-approval tests FCC lab no home-built sets allowed operate Treasslttar aaeptetIs .ttoaatahad R5t, battacta t rlshi point second AMA/FCC meeting1948 Within two weeks after 1948 FCC vio lations letter AMA President-elect C 0 Wright visited Washington DC joined AMA meeting FCC discuss letter Attending AMA Willis Brown first AMA president active Ham Russ Nichols Walt Good chairman AMA RC Com mittee As reported AMA Model Aviation November 30 1948 recent conference Washington office FCC re vealed fact FCC genuinely terested solving unique problems brought about advent Radio Con trol flying large scale positive FCC action resulted AMA/FCC meeting June 1 1949 FCC established first Citizens Radio Service channel RC regulation specified RC flier may use frequency 465 MHz simple Citizen Band type license 465 MHz transmitter must manufactured item type ap proved FCC laboratoryno homebuilt units allowed represented good start FCC recognition modelers need examfree RC operation Some manufacturers thought 465 MHz frequency would too difficult ap ply RC because considered too high radio frequency available technology example vacuum tubes market sufficient quality used receiver small tube six-volt heater-type cath ode drew 300 mAh needed heavy battery give adequate flight life Ive told Nate Rambo used Farmpack brand battery intended radios farm achieve flight time de sired Vernon MacNabb Citizen-Ship Ra dio Corporation bolstered thorough knowledge radio technology compo nents persuaded Idea company Indi anapolis tackle transmitter re ceiver design George Fathauer engineered design help partners Sam Dick Goldstein project took better part year although much time spent FCC laboratories type approval tests made transmitter first rejected FCC because frequency drifted out toler ance temperatures below freezing After problem corrected transmitter returned FCCwhere remained such long time Mac Nabb urged Indiana senator Homer Capehart intervene Capeharts inquir ies disclosed transmitter passed tests paperwork hadnt completed approval certificate arrived three days later just time Gene Foxworthy fly Citizenship 465 MHz gear 1950 RC Natsand win MacNabb still has first RC license 465 MHz issued FCC June 26th 1950 transmitter receiver sold $3995 inexpensive con verted 1988 dollars todays market $3995 price tag would translate over $300 Through recent contacts some pioneering names early years Radio Control learned MacNabb day lives Pompano Beach FL plays golf three times week still flies little RCat 85 years age told paid Idea Company sum $500 total 465 MHz development concept tested production design Gene Foxworthy wife Martha re tired West Virginia still active RC talk weekly Ham ra dios Gene designed first mechanical parts MacNabb gear well doing test flying Goldstein brothers earned PhD physics theyre both professors astronomy University Vir ginia other Cnlifornia Obviously high-powered devel opment team Still FCC RC violations1951 Andrews Field near Washington DC 1951 FCC again alleged improper us age amateur frequency RC again issued warning letters happened CD RC event violation cited spent consider able time conversing FCC inspec torpartly divert him shutting down event before finished flying Al though ploy worked didnt prevent letter reprimand came through later stating RC opera tor must have Ham license However FCC stopped short taking license away thank goodness Participants 1951 Nats RC event came up creative roundabout solu tion operator licensing problem lo cal Ham operated unlicensed RC transmitters holding controls hand pushing buttons re sponse voice commands pilot feasible way completing RC event satisfying local FCC spector hardly satisfactory modelers viewpoint Up time except re cently approved 465 MHz gear Ham frequencies available RC use As abundanfly clear cited examples amateur frequencies still re quired Ham operator license spite awkwardness conform ing Ham operator rules owe much thanks Ham community its contri butions pioneering early RC planes electronics efforts made possi ble non-Ham experimenters join advancing tide development RC Air craft Ross Hull Byron Goodman Clinton DeSoto others ARRL Head quarters staff deserve mention Turning operator question newly acquired 465 MHz RC channel no firm guidelines set forth owner 465 MHz gear al lowable operator controls May owner hand transmitter friend try controls Since Citizens Radio Ser vice rules clear point FCC modified request AMA shortly after 465 MHz came un Continued page 198 92 Model Aviation England past three years 61 49 both suitable model also believe solid 45 Royal OS suit ably de-tuned would plenty power current setup Merco 6155 285 venturi SST silencer 10 holes open no pressure Taffinders 5% nitro PA fuel 114 x 6 Bolly three-blade prop engine has two 020 head gaskets added further soften four-cycle/twocycle break combination gets through pattern using just 3% oz fuel Lines 70 ft 018 cable model weighs 64 oz current trim finish see Sig dopenitrate clear base followed butyrate colorover silkspan wing 56-oz Sig glass cloth epoxy everywhere else am com pletely convinced glass cloth epoxy way go speed strength fuel-proofing stability finish As far can tell light lighter tra ditional dope-and-paper finish have very good results using Loctite Finishing Epoxy cloth stuff sands like chalk leaves very little material plane use dope colors nitrate bonding coat must first applied over epoxy butyrate wont adhere directly epoxy very well usually spray two coats nitrate clear over sanded epoxy-glass surface sand lightly spray filler coat talc nitrate After wet-sanded 400-grit paper spray colors last thought build model again would add another inch inch-and-a-half tail moment length would increase elevators groove leverage would also look scalelike may wish incorpor ate change own T-60 II Fly safe fly quiet contact Don McClave 221 NW 2nd Ave Suite 300 Portland OR 92709 find out can join PAMPA association model Stunt fliers enthusiasts responding advertisers mention read about ModelAviation Frequency Battle/Good Continued page 92 der CRS umbrella Under new regu lation persons other owner would allowed operate RC transmitter owners permission fore stalled possible repetition mis understandings concerning piloting occurred modelers using ama teur radio frequencies frequency home-built RC gear 1949-1952 Gratified though 1949 have 465 MHz frequency ap proved RC use some us felt strongly still worthwhile pursue fre quency allocation simple home-built gear almost three years before FCC handed us victory second fa vorable ruling concerning RC frequency us age permitting home-built gear dispens ing requirement examina tion story achieved C/LNewR/C IHANGERJCATALOG Kits OR Plans I Innovative InexpensiveI Quick & Easy Build rnttttNrrr Ut QUICK & LIVELY SPORT RIPLASIE GREAT FOR SMALL FIELDSOr d e r y o u r s t o d y I gned new ton 074 Queen nee engine $2 ISpecifications Wing Span 26 Wing Area 275 Sq Length 25 Loading 13 02/Sq Ft. Weight 11/2 Lbs I Radio 4Channel micro servos Expeneote aileron trainer qualifies pilot sleek look ing airplane Sinpie durable rectangular 2spar nheeted wings sheeted hon type fonelage nolid tail surf aces pre-cut AAA balsa ply full-sian illustrated plans STANGEL ENTERPRISES conplete instructions hardware package wheels ftc p 0 BOX 336 Ml EAA Ilana $4995 $35O 5kM Plans Only S995cSllO 5kM MEMBERWAUKEIHA W SCONS N 0 8 1336 AMJ 198 Model Aviation K&S METAL CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture f carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises 2540 RIDGE ROAD LANSING ILLINOIS 60438 Phone 312-895-8151 Aluminum/Brass/Copper Tubing & Shapes Music Wire Tos Soldenng Irons Silk Silk Span Finishing Matenals Send 25 br catalog KASigring A017 W ROfli *aat goal follows 27255 MHz frequency desig nated FCC use Industrial Scientific Medical ISM band indus trial controls scientific experiments medical applications such diathermy practice however other users excludedso much frequency known unofficially FCC Garbage Band sensed despite hangers-on already acquired licensing con struction requirements 27255 MHz frequency would minimalif could demonstrate channel would work RC After British modelers using 27 MHz RC since 1946 over three years FCC reluctant consider 27255 MHz RC some proof its work ability USA environment end FCC provided AMA Ex perimental License KG2XDA actual flight tests begin February 1950 July 1950 over 100 flights made Washington DC area oaly two cases apparent interference flight planeand no crashes However unconvinced local tests gave broad enough data spread FCC suggested supplemental flight tests conducted other areas agency extended KG2XDA li cense nine AMA members across USA provided 200 additional flights Most modelers members AMAs first RC Committee covered both RC contest rules frequencies Chairman Walt Good Bethesda MD Clay Freese Chicago IL William Stel mach Ed Rockwood Palo Alto CA Dick Schumacher Van Nuys CA Warren Bartlett Detroit MI Harry Geyer Jim Schenck Pittsburgh PA Ed Lorenz Hyde Park NY midyear 1951 eight 300 tests completed marred glitch es considered reason able proof satisfactory RC operation 27255 MHz test Warren Bartlett tentionally flew near hospital using diathermy equipment 27 MHz frequency established 1000 ft too close causing glitches plane mile proved adequately safe distance showing no interference experimental radio gear homemade modelers using crystal control less five watts some cases modified 52MHz RC rigs formerly used Ham RCers Stepping back early 1951 over 200 flights completed felt time FCC engineers being much too conservative asking test flights much too slow getting started drafting some simple 27 MHz rules discussed situation lunching Dave Rabenhorst John Hopkins Lab both worked As both mod eler engineer clearly understood picture Any suggestions Dave asked said yes recommending go higher FCC organization speak di rectly seven FCC commis sioners final voters FCC ac tions Note FCC established Congress 1934 seven com missioners appointed US Presi PLAIN CRADLE-2 AlsoPurchase local hobby shop order direct~tet0 j3 Completely Fusiproof 6 Wide Fuselage Unbreakable es Flat Perfect Field Shop Same Day Shipping Nest eetIefIe return unused lt fuN refund Marty BerrSend $1796 plus $200 shipping handling 94 Stonefield Trail South Windsor CT 06074114 end 113 Scale Sizes 5 plus $200 S & H Want go vertical flintjet Series 04 ikytank FOf Tile shark sill allon jetlike performnc whO nor hassle ducted k5 enpens Both kits balsa cuounractios nit h spar wings y can act ommoda te standard mini nero o h channel radi nsyntens nih accept 20 2y nine engines noceptinna pyrforsancesset 21 25 rear en haunt enginen Thy ik uomesbmt docile inapt spea ds ki tnare mediate flyer ie offer plans canopies forA-4 SkyhewkF-20 Tigeraherk uisb airatch build Shifi Plans3k slug uput3k0000 soun Canopy $1000 Flawn only 400 sq area 330 sq area Other products available Poel Isjeitinn lireus 3f tenath 30 length Fans lain ginard Pnpes Insonatuon flodel Pro$4500 s/fl$4000 S/f doctu 1111 Isis B Plans Send check Money Order coo add $3- FL flea add 6% sales tax3055814477 PARRISH AIRCRAFT & Scale Models 1125 SW 49th Tar. 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$IC 5K20 $K720 fans $CDF-t $1996 Navy P40-i Skyray 1% e ength ing span 10 lbs oh $IC actible landing anar $CDF-2 6 Sill EPlinger Feandine Menebee AMA 14PF5 Hall Fame Prices lot conrpleea plans sub assanebly detailed parts lists Add $200 tee MaIlIng Tuba SeedIer brechura ahead crowd new broobere showing new Plan Sets 1989 Seed $1 etondable yost 1st order1 WE TECHNICAL SERVICES PO Box 76884-A Atlanta GA 30328 dent Sounds great DaveHow get speak Well said stepfather Sen ator Charles Tobey New Hampshire Im sure can arrange upon Dave stepped phone called senators office turned asked want appointment commissioner afternoon morrow decided tomorrow meeting FCC Commissioner George Sterling spring 1951 turning point acquisition 27255 MHz frequency RC As fellow DCRC member Carl Cessna walked down hall commis sioners office FCC staff members gawked RC plane toting Sterling gracious understanding probably because quickly learned active Ham operator since 1912 understood technical radio pects ease knowledge FCC commissioner hold Ham license Most appointees politically affiliated connected radio broadcast industry both As side note Ive just read QST Amateur Radio Journal January 1988 Sterling WlAE remains active Ham home Maine today five Hams got licenses 1912 still active today After carefully examining planes RC gear listening report AMAs flight test program 27255 MHz Sterling responded one-page sum mary proposal pushing FCC staff response posi tive believe reasonable plan maybe restrictive neces SUPER DELUXE PRE-BUILT KITR 1 Carbon Fiber reinforced Epoxy Glass Fuselage• 2 FACTORY SHEETED Carbon Fiber reinforced Ultralight Honeycomb Plug-in Wingrr 3 FACTORY SHEETED adjustable 8 removable stab 4 Tn conventional retract 5 Pre-cut firewallOnly AVAILABLE IN BASIC KIT ONLY $1Length-6067$450 Carbon Fiber Reinforced Fuselage Wing Area- 700 sq Latest Japanese Pattern Design n byWegi 775 850 bs Top Japanese Pilot able FAI AMAEttg ye 0cc Please add $15 shippingPATTERN TEK 1408298 0311 will happy pass along favorable recommendations Shortly thereafter AMA received preliminary draft rule-making Docket #10086 modified clude 27255 MHz frequency RC course AMA commented favorably Simple RC rules arrive1952 Novem ber 1951 final proposal rule-making Docket #10086 appeared amend ment Part 19 Rules Citizens Ra dio Service included AMA plan adopting 27255 MHz frequency RC Since no objections received FCC regulation became official March 24 1952 long struggle AMA finally won approval first homebuilt RC frequency following regulations applied new Class C stations 1 Frequency27255 MHz crystal control assure accuracy 2 Powerfive watts maximum 3 Emissionson/off carrier tone mod ulation 4 Type approval required crystal-controlled transmitters Thus homebuilt gear OK 5 license simple FCC Form 505 flier sends nearest FCC fice No exams required After five years effort part AMA FCC March 24 1952 great day indeed About month after 27255 MHz fre quency made available received letter FCC Commissioner Sterling enclosed clipping Washington Evening Star newspaper about Reginald Denny well-known movie star produced RC target drones US military during WW II Denny now proposing use radio equipment RC model fliers According clip ping Denny approached FCC .. turned down cold Exactly never found out note attached clipping FCC responding advertisers mention read about Model Aviation 200 Model Aviation ZAP UNIVERSITY COLLEGE OF GLUE KNOWLEDGE ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX AH Designs47 AMA Membership65 Academy Aviation R&D10 Ace Radio Control9 Aerodrome Models188 Aerospace Composite Prod43 Airtronics6-7 AI-tec Su-pr-Line Prod180 Altech Marketing179 181 183 American Jr Aircraft Co22 American Sailplane Des66 Astro Flight15 Authorized RC Service57 B&P Associates47 Quay Barber Models170 Berkeley Trading Co178 Marty Berr156 199 Blue Ridge Mach & Tools171 Blue Sky Enterprises169 Bolar Heli Research173 Dave Brown Products41 Byron Originals95 104 Campbell Tools Co173 Campbells Custom Kits166 Circus Hobbies186-188 Cleveland Model Supply16 Colorado Model Products8 Composite Aircraft Eng49 CompuServe175 Control Systems Labs161 Coverite1 63 Cox Hobbies101 Crenshaw Aero176 Culpepper Models Inc49 DGA Designs67 D&R Aircraft Mfg156 Davey Systems Corp157 Tom Dixon190 Dodgson Designs166 Doylejet171 Du-Bro Products Inc38 55 198 Elden-Ken Electronics197 FAI Model Supply189 FHS Supply Inc5 Fiberglass Master53 Fiorenze Hobby Center173 First US RC Flight School197 Flights Fancy Aeromodel174 Florlo Flyer177 Flyline Models197 Fourmost Products51 Fox Mfg Co162 Fults Dual Struts22 Futaba Corp America21 204 G&A Products51 GM Precision Products66 Gas Model Products189 Gator RC Products64 Carl Goldberg Models96 203 Gorham Model Products12 Paul K Guillow Inc174 Hi Performance Sailplanes173 High Performance Models55 High Sky67 Hobby Barn154-155 Hobby Dynamics111 114 Hobby Horn18 Hobby Lobby International17 Hobby Shirts & Hats197 Hobby Woods57 MS Atlanta184 Ikon Northwest Co39 Indy RC Sales Inc158-160 InVenture180 JR Radios111 114 JTec170 Jan Crystals18 Larry Jolly Model Products156 Jomar20 22 KD Grapphics42 K&B Mfg177 K&S Engineering198 K W Enterprises171 Kingsway Enterprises196 Kircher RC Products169 Kraft Midwest166 Kustom Kraftsmanship172 Kyosho185 Leisure Electronics163 Lone Star Models167 MACS Products64 MARC Show173 Memphis Model Market168 Jim Messers172 Micro Mark34-35 Midwest Products23 Model Rectifier Corp . Coy 2&3 819 Sid Morgan Plans182 Walt Moucha Models16 Mutchlers Hobbies164-165 NF Video Library42 NEPRO176 Nayco Co20 North Products169 Northeast Aerodynamics4 PacerTech12182191200 Paper Airplanes Intl172 Parrish Aircraft199 Pattern Tek200 John Peck Leisure Prod176 Pelican Enterprises198 Penn Valley Hobby Center169 Performance Hobbies176 Performance Products Ultd190 Perkins Avionics41 Phillips Aircraft Co182 Pica Products10 Planes & Things170 Polks Hobby Pot OGold169 Progress Mfg Co177 Pro-Tune Corp168 RB Bunch57 RC Buyers Guide22 RC Extras190 RJL Industries 66 Ragan/Barker Group47 Red Max Fuel5 Reynolds Jewelry181 Robart39 Robbe Model Sport11 Roun Tuit ..196 SAC66 SR Batteries153 Safety Plus16 53 Satellite City13 Scale Model Research171 Scale Plans & Photo Ser169 Sermos RC Snap Connectors64 Shamrock Competition Imports 9 Sheldons Hobby Shop20 Sig Mfg Co4 109 191 Skyline Hobby Mfg. Bob Smith Industries4 49 Square Cut Tools51 Stangel Enterprises198 Sullivan Iroducts102-103 Sunshine Hobbies67 Superior Aircraft174 Swanson Assoc20 Tatone Products Co178 Tidewater Hobby Enterprises161 Toledo RC Exposition171 Top Flite Models Inc113 Tower Hobbies192-195 Trader Jacks Buy Sell55 Tru-Turn189 VL Products67 Vinylwrite Custom Lettering64 WE Technical Services200 Williams Brothers53 Windsor Propeller Co43 Wing Mfg Co178 World EnginesCover 4 Nick Ziroli Models196 ZZ Enterprises57 Commissioner Sterling wrote Dr Good has fellow Denny Thats what call first-rate commis sioner modelers owe Sterling great debt successful outcome First Battle encouraging 1952 ac quired two RC channels 465 MHz 27255 MHz well simple no-exam permits just what wanted beginning EAA/Wischers Continued page 108 temperatures days Besides water demand high two survi val items heat humiditydeli ciously top-heavy soft serve cones May 1989 201
Edition: Model Aviation - 1989/05
Page Numbers: 88, 89, 90, 91, 92, 198, 199, 200, 201
Battle RC Frequencies now almost seems like right American switch RC transmitter fly plane hearts content its Its privilege right fought long hard modeling predeces sors over 40 years ago Part three-part series U Walt Good HOW WOULD like fly Radio Con trol AMA Nationals upon arrival discover 268 RC contes tantswith over 200 fre quency situationat 1958 Nats Chicagovividly illustrates painful steps AMA encountered its struggle obtain RC channels rap idly growing family RC fliers story early years fly ing RC frequencies battles fought obtain first RC chan nels FCC Over span 40 years Academy Model Aeronautics has en gaged least six confrontations Federal Communications Commission ac quire new RC channels protect channels already gained Equally impor tant fliers needed channels did require examinations licensing first battle begins acquisition single examination-free RC frequency last skirmish wont over until AMA has achieved its long-term goal gaining 80 exclusive RC channels Please note personal report based viewed events active participant almost phase por trayed story hope accurate its undoubtedly limited weakening memory hundreds ragged incom plete files gladly leave task filling gaps other generous souls participated efforts First look earliest beginnings 88 Model Aviation 4 authors twin brother Bill 1937-vintage transmitter Power output 100 watts note two big tubes An AC power cord runs outlet inside hangar author 1938 RC Guff model Note open side door revealing receiver relay Single-channel control rudder done using rubber-powered escapement THE EVENING STAR WMhJngton D CA-iSFEDERAL COMMUNICATIONS COMMISSION WEOSEODAY APRIL U 5952 Denny Envisions Radio Co -I es FutureFrom CEO E STERLING perfectly poHible soi recelvero thatCommissioner today model plane fans fly could get cost dow____________________________________________________________[v32][b2125429121100]] about 824 TheRemarks theIr creations radIo control mltters would much exAQA/Je Instead cIrcling wIre pensIve about $180 r ' tether planned sell ThIs Informed opln- clubs members Informed opIn can c wIth transmItters whlIIAJ0A Ion Iteginald ontrol plane Denny star d take five radio chan % stage andneis operate transmitter... screen Mr rudder control nyelevators etc took it1 i e about radioup Federal Communca 8 controlledtlons CommissIon tuinedF j down cold 11i models In-- vented Today Infinite numberl4 used , ultra high frequency channels e tar- available radIo con F Competition among builders IdAUINGOON 0 0 get practice tolled plane event meet ~ h ~runer planes has made pos guided - wd FCC has alIf D07aictemporary use 21251 possible new departuref. described megacycle wave band dem . model builders asa utopia could 1send planes fsr eyep ould see bF-be Above Reginald Denny movie star developer RC target drones during WW ii proposed FCC establish frequencies hobby RC planes Mr Denny claimed turned him down cold George Sterling figures apparently didnt know new 27255 MHz RC channel gone effect month earlier Below left L-R Walt Good Reginald Denny Bud Chapman lunching Paramount Studios 1938 Walt telling Denny about hobby RC planes Bud 1938 California Free Flight Gas Model Champ listens As FF Gas winners Walt Bud got airplane trips Hollywood tour Paramount Studios promoting movie Men Wings Right Walt Good Dorothy Lamour showboat set St Louis Blues Bud Walt parts movie extras grandstand audience scene Pre-World War W II RC Contests 19371941 Lets step back years just prior WW II see early RC fliers ac quired frequencies fly 1937 Nats Detroit first Nats RC event held RC pilots used amateur radio frequenciesprimarily 56 60 MHz six Nats entries acquired necessary amateur Ham licenses partners done transmitter signed air license holder sending call sign Morse code before flight signed off after flight During actual flight model builder part team used control buttons steer plane Legally speaking non-Ham al lowed operate transmitter overlooked days stories subject later Thus five RC Nats held 1937 through 1941 Ham frequencies used exclusively World War II shut down amateur radio en tirely 1942 1946 Ham transmit ters disabledas Radio Control hobby erstwhile RC hobbyists engaged military service work ing days nights weekends confiden tial hush-hush projects Uncle Sam After World War II 1946-1952 im mediate postwar years RC event re vived 1946 AMA Nats Wichita KS five RC entries year pilots flew great enthusi asm Again amateur radio frequencies used FCC shifted prewar 56-60 MHz band 50-54 MHz after war regulatory body still required Ham li cense obtain such license pass code test electronics test test radio regulationsnot easy task modeler wanted simple radio equipment simple radio license What RC hobbyists needed able obtain license exclusively RC flying examination Examination-free RC frequencies 1946 British modelers led way May 1989 89 RC competitions rorooo o 4p tosuoi 04oi, hr rho itoi ho nrrdI cidre Thr chip drrrol heir hop crc o ocrirroir crc ii Verrirerit IrrrloOotert cor hiro lrrrorvrry. rr horroorrrrl 004cr errilo C rrrrrrrlrtOricP C cirriricod rrrrroirrr arid Irrophr thrirt irk pp Vrorr itrrrirrit Iii di irk ni rkiirl ii irl hip diii hirk iii -A dli icud urrililii rrrurorr ii1 0did ii crc C CI cr Cc rIpohd iiirc l-I ivr crriiu i i1 As appeared July 1937 issue QST Ross Hull Byron Goodman assemble 13-fl RC Glider West Hartford CT along Clinton DeSoto staff QST amateur radio magazine introduced RO hobby radio amateurs securing examination-free RC license 27 MHz 460 MHz done means simple exchange let ters between D W Allen Society Model Aero Engineers British counter part AMA British Post fice represented Engineer-in-Chief Radio Branch Mr C E Clarke Mr Clarkes short reply Allen dated November 8 1946 sanctioned follow ing frequencies RC model use Britain Frequency #14605 MHz within Hz Frequency #22766-28 MHz Additional specifications Clarkes let ter follows Maximum input power five watts No special license required Use equipment RC communication Modelers US felt optimistic British could obtain RC frequencies quickly expected little no delay se curing similar response Federal Communications Commission FCC Un fortunately wrong Several years pass before obtained similar RC use frequencies America First Battle RC Frequencies 1946 living Washington DC 1946 Russ Nichols executive diFEDERAL COMMUNICATIONS COMMISSION WASHINGTON 25 DC November 4 1948 ARORESS ALL COMMUNICATIONS reply refer 6104 Loademy Model Lsronautics l03 Conxeoticut Lvenue NW Washington 6 D 0 Gentlemen Observation made during National Model Airoraft Meet Naval Air Station Olathe Kansas August 4 8 1948 inclusive revealed number ireg1slarities oomneo tion use 01 amateur stations purpose remotely controlling model aircraft radio intended t oitationa will jasued instance However 1l appreciated organization calls attention members foflowing omissions appear quit prevalent airt emphasizes amat eur stations operated purpose applicable rules should adhered Thzring course Meet foflowing omissions As result FCC inspectors report AMA received letter FCC outlining violations committed RC contestants 1948 Nationals held Olathe KS rector AMA immediately dis cussed modelers RC frequency needs him Having worked several gov eminent agencies before joining AMA Russ familiar some proce dures suggested arrange visit Federal Communications Commis sion discuss matter RC frequencies face-to-face January 1947 letter FCC AMA ouflined its RC airplane needs fashion similar British SMAE letter requested exploratory meeting first meeting held April 30 1947 Eight FCC engineers representing seven FCC departments attended Russ representing AMA pos itive result FCC suggestion newly contemplated Citizens Radio Service might able offer channel RC Af ter several visits FCC personnel year Russ thought making some progressalthough still ob tained no RC frequencies 1947 Nats Minneapolis seven RC entries number suc cessful flights RC planes growing up However still using Ham fre quencies concomitant requirement amateur license just gotten Ham license after three attempts months pass code test must admit thing hurt watching 10year-old kid zip through code test first try As consolation finished writ ten parts electronics regulations exams before did Follow-up meetings between FCC AMA discuss simple no exam RC frequencies equally unproductive 1948 drew close still achieved nothing tangible Admittedly bit slow learning deal FCCs bureaucratic system however about get some action RC modelers charged FCC viola tions1948 1948 Nats August Olathe KS saw 14 RC entries demon strated numerous flights also scored first FCC observers appeared Nats showed interest RC event expressed concern AMA November 1948 letter detailing number violations FCC regulations through improper use amateur sta tions no citations made against Ham operators time FCC dicated might future ci tation type could result withdrawal Hams license FCC finally gotten FCCs attention respect RC planes frequen cies Ironically wasnt sort atten tion hoped FCC observers learned later inspectors local field office simply doing duty As described FCC report fol lowing six violations cited FCC inspectors During course meet fol lowing omissions noted 90 Model Aviation noted 1 No provision kind made measurement emitted frequency violation Section 12135 rules 2 some instances amateur stations operated unlicensed persons licensed amateurs stood simply operated unlicensed persons li censed operator attendance violation Section 1228 rules either case 3 Failure identify amateur station transmitting control signals violation Section 12159 rules 4 Although amateur stations being operated portable stations Olathe KS overall period 48 hours licensees submitted notices portable operation Commissions Engineer Charge Kansas City MO violation Section 1291 rules 5 Several amateur station transmitters observed operating outside signed amateur frequency bands viola tion Sections 12111 12113 rules 6 Little no effort made maintain proper station log violation Section 12136 rules AMA took FCC report Ham radio violations 1948 Nats seriously cautioning its Ham users 50 MHz band RC follow stated FCC regu lations Although several violated rules easily correctible regula tion opinion haunt Ham RC fliers 40 yearsand present day Section 1228 allowed licensed operator Ham voice station hand microphone person wished speak transmit voice via radio prohibited other mode emission such Morse codes on-off signals tones sent anyone other licensed operator impact RC flier Ham operator permitted hand RC control box anyone elseeven own son friendfor steering plane rule still effect today FCC Violations1949 second 1949 letter FCC cited new amateur ra dio violations letter sent AMA directly charged permitting certain unlicensed persons participating 18th National AMA Meet Naval Air Station Olathe KS engage portable operation amateur station W3NPS violation Section 1228 Commissions rules two-page reply FCC must have effective because let offthis time Its possible took considera tion fact Rudder Bug won RC event year doubt Although viewpoint RC modeler some FCC-cited violations might seem like peccadilloes prov able infringements rules effect amateur two-way communication nonvoice signals clearly deci sively illustrated certain FCC rules Ham operation simply incom patible Radio Control modeler practice FCC IMrZT DE DK1n5 recent conference Weahington office Federal C nicatione Ciaioc brought out fact FCC Ie genuinely terested solving unl4ue problem brought about advent radio control flying Urge scale Attending rpreaentlng Academy Dr Qood Chairmen Radio Control Cmaitte CO Wright AMA President Willie C Drown firet Free ideat Academy end Headquartere staff mabere ooweinua Opinion foflowing conference signif icant forward etep usda AMA effort obtain lees strin gent requirements obtaining FCC Uoeue radio control flying leading op conference wee letter received fron Con iniesion calling ettention nuer aeqlem nonconforndty regulaticca wMch observed end reported F C C off ciala attending Rational Meet Olatha diacuesing letter waa specifically requested notice given AMA einbere ell radio operation non-ailitary governmental nature includ radio control flying Ie sub3eat FCC control perti nent regulatiorm must obeyed Whle thie euheot miga well point out Academy hopes obtain relaxation requirement us aay fly radio control oon sense dictate obeying law FCC ot reasonably inpected cooperate us pereiet cooperating witi Thus November 1948 Issue Model Aviation reported AMA FCC held discussions Olathe violations upshot meeting new FCC regulations would required because RC operation specifically covered existing FCC regulations Obviously basic conflict tween FCC AMA viewpoints much RC modeler should reason ably required know apparent FCC philosophy modeler clever enough build tame RC model ought have no trouble passing exami nations obtain Ham license AMA philosophy different same clever modeler ought able build use simple low-powered trans mitter receiver RC having learn skills required communications-oriented radio amateur negotiations between FCC AMA during formative years regulating RC frequencies battle lines drawn around fundamental difference viewFEDERAL COMMUNICATIONS COMM ISSION WASHINGTON 25 DC Septenber 16 1949 TO TUE SECRETARY reply refer 8032 Mr Walter Good W3NPS 9123 Eton Road Silver Spring Maryland Dear Sir Commission has received information its Engineer Charge Kansas City Lljasouri soveral occasions during period July 25 July 30 1949 permitted certain unlicensed persons participating 113th National Academy Llodel Aeronautics Lleet Naval Air Station Olathe Kansas engage portable operation enateur station violation Section 318 Communications Act 1934 amended apd Section 1228 Commissions Rules requested submit ion explanation may have youq matter tfr After Nats 1949 FCC threatened revoke Walt Goods Ham radio license allow ing unlicensed persons operate amateur station three-page reply Walt pre vented happening close call OK FCC allow unlicensed person talk radio station OK allow fly airplane May 1989 91 Radio Control R C enthusiasts have long wanted License-Free band its now equipment VERNON C MACNAIB quarter century has illegal operate radio transmitter license granted Federal Bureau currently FCC Federal Connunicalions Commission law modified June 1949 allow layman Mr John Q Public obtain license operate radio transmitter necessity being examined determine technical bnowledge radio ecen bnowing character International Morse Code Citicens Band plain citicens modrl airplane builders fliers opened June first course ceclaiss definite restrictions because transmis sions must interfere already established licensrd sercicco excerpted follows fr " Regulations governir. . As reported Model Airplane News 1950 Radio Control now Vernon Mac Nabb produced first examination-free sets operation 465 MHz frequency required type-approval tests FCC lab no home-built sets allowed operate Treasslttar aaeptetIs .ttoaatahad R5t, battacta t rlshi point second AMA/FCC meeting1948 Within two weeks after 1948 FCC vio lations letter AMA President-elect C 0 Wright visited Washington DC joined AMA meeting FCC discuss letter Attending AMA Willis Brown first AMA president active Ham Russ Nichols Walt Good chairman AMA RC Com mittee As reported AMA Model Aviation November 30 1948 recent conference Washington office FCC re vealed fact FCC genuinely terested solving unique problems brought about advent Radio Con trol flying large scale positive FCC action resulted AMA/FCC meeting June 1 1949 FCC established first Citizens Radio Service channel RC regulation specified RC flier may use frequency 465 MHz simple Citizen Band type license 465 MHz transmitter must manufactured item type ap proved FCC laboratoryno homebuilt units allowed represented good start FCC recognition modelers need examfree RC operation Some manufacturers thought 465 MHz frequency would too difficult ap ply RC because considered too high radio frequency available technology example vacuum tubes market sufficient quality used receiver small tube six-volt heater-type cath ode drew 300 mAh needed heavy battery give adequate flight life Ive told Nate Rambo used Farmpack brand battery intended radios farm achieve flight time de sired Vernon MacNabb Citizen-Ship Ra dio Corporation bolstered thorough knowledge radio technology compo nents persuaded Idea company Indi anapolis tackle transmitter re ceiver design George Fathauer engineered design help partners Sam Dick Goldstein project took better part year although much time spent FCC laboratories type approval tests made transmitter first rejected FCC because frequency drifted out toler ance temperatures below freezing After problem corrected transmitter returned FCCwhere remained such long time Mac Nabb urged Indiana senator Homer Capehart intervene Capeharts inquir ies disclosed transmitter passed tests paperwork hadnt completed approval certificate arrived three days later just time Gene Foxworthy fly Citizenship 465 MHz gear 1950 RC Natsand win MacNabb still has first RC license 465 MHz issued FCC June 26th 1950 transmitter receiver sold $3995 inexpensive con verted 1988 dollars todays market $3995 price tag would translate over $300 Through recent contacts some pioneering names early years Radio Control learned MacNabb day lives Pompano Beach FL plays golf three times week still flies little RCat 85 years age told paid Idea Company sum $500 total 465 MHz development concept tested production design Gene Foxworthy wife Martha re tired West Virginia still active RC talk weekly Ham ra dios Gene designed first mechanical parts MacNabb gear well doing test flying Goldstein brothers earned PhD physics theyre both professors astronomy University Vir ginia other Cnlifornia Obviously high-powered devel opment team Still FCC RC violations1951 Andrews Field near Washington DC 1951 FCC again alleged improper us age amateur frequency RC again issued warning letters happened CD RC event violation cited spent consider able time conversing FCC inspec torpartly divert him shutting down event before finished flying Al though ploy worked didnt prevent letter reprimand came through later stating RC opera tor must have Ham license However FCC stopped short taking license away thank goodness Participants 1951 Nats RC event came up creative roundabout solu tion operator licensing problem lo cal Ham operated unlicensed RC transmitters holding controls hand pushing buttons re sponse voice commands pilot feasible way completing RC event satisfying local FCC spector hardly satisfactory modelers viewpoint Up time except re cently approved 465 MHz gear Ham frequencies available RC use As abundanfly clear cited examples amateur frequencies still re quired Ham operator license spite awkwardness conform ing Ham operator rules owe much thanks Ham community its contri butions pioneering early RC planes electronics efforts made possi ble non-Ham experimenters join advancing tide development RC Air craft Ross Hull Byron Goodman Clinton DeSoto others ARRL Head quarters staff deserve mention Turning operator question newly acquired 465 MHz RC channel no firm guidelines set forth owner 465 MHz gear al lowable operator controls May owner hand transmitter friend try controls Since Citizens Radio Ser vice rules clear point FCC modified request AMA shortly after 465 MHz came un Continued page 198 92 Model Aviation England past three years 61 49 both suitable model also believe solid 45 Royal OS suit ably de-tuned would plenty power current setup Merco 6155 285 venturi SST silencer 10 holes open no pressure Taffinders 5% nitro PA fuel 114 x 6 Bolly three-blade prop engine has two 020 head gaskets added further soften four-cycle/twocycle break combination gets through pattern using just 3% oz fuel Lines 70 ft 018 cable model weighs 64 oz current trim finish see Sig dopenitrate clear base followed butyrate colorover silkspan wing 56-oz Sig glass cloth epoxy everywhere else am com pletely convinced glass cloth epoxy way go speed strength fuel-proofing stability finish As far can tell light lighter tra ditional dope-and-paper finish have very good results using Loctite Finishing Epoxy cloth stuff sands like chalk leaves very little material plane use dope colors nitrate bonding coat must first applied over epoxy butyrate wont adhere directly epoxy very well usually spray two coats nitrate clear over sanded epoxy-glass surface sand lightly spray filler coat talc nitrate After wet-sanded 400-grit paper spray colors last thought build model again would add another inch inch-and-a-half tail moment length would increase elevators groove leverage would also look scalelike may wish incorpor ate change own T-60 II Fly safe fly quiet contact Don McClave 221 NW 2nd Ave Suite 300 Portland OR 92709 find out can join PAMPA association model Stunt fliers enthusiasts responding advertisers mention read about ModelAviation Frequency Battle/Good Continued page 92 der CRS umbrella Under new regu lation persons other owner would allowed operate RC transmitter owners permission fore stalled possible repetition mis understandings concerning piloting occurred modelers using ama teur radio frequencies frequency home-built RC gear 1949-1952 Gratified though 1949 have 465 MHz frequency ap proved RC use some us felt strongly still worthwhile pursue fre quency allocation simple home-built gear almost three years before FCC handed us victory second fa vorable ruling concerning RC frequency us age permitting home-built gear dispens ing requirement examina tion story achieved C/LNewR/C IHANGERJCATALOG Kits OR Plans I Innovative InexpensiveI Quick & Easy Build rnttttNrrr Ut QUICK & LIVELY SPORT RIPLASIE GREAT FOR SMALL FIELDSOr d e r y o u r s t o d y I gned new ton 074 Queen nee engine $2 ISpecifications Wing Span 26 Wing Area 275 Sq Length 25 Loading 13 02/Sq Ft. Weight 11/2 Lbs I Radio 4Channel micro servos Expeneote aileron trainer qualifies pilot sleek look ing airplane Sinpie durable rectangular 2spar nheeted wings sheeted hon type fonelage nolid tail surf aces pre-cut AAA balsa ply full-sian illustrated plans STANGEL ENTERPRISES conplete instructions hardware package wheels ftc p 0 BOX 336 Ml EAA Ilana $4995 $35O 5kM Plans Only S995cSllO 5kM MEMBERWAUKEIHA W SCONS N 0 8 1336 AMJ 198 Model Aviation K&S METAL CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture f carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises 2540 RIDGE ROAD LANSING ILLINOIS 60438 Phone 312-895-8151 Aluminum/Brass/Copper Tubing & Shapes Music Wire Tos Soldenng Irons Silk Silk Span Finishing Matenals Send 25 br catalog KASigring A017 W ROfli *aat goal follows 27255 MHz frequency desig nated FCC use Industrial Scientific Medical ISM band indus trial controls scientific experiments medical applications such diathermy practice however other users excludedso much frequency known unofficially FCC Garbage Band sensed despite hangers-on already acquired licensing con struction requirements 27255 MHz frequency would minimalif could demonstrate channel would work RC After British modelers using 27 MHz RC since 1946 over three years FCC reluctant consider 27255 MHz RC some proof its work ability USA environment end FCC provided AMA Ex perimental License KG2XDA actual flight tests begin February 1950 July 1950 over 100 flights made Washington DC area oaly two cases apparent interference flight planeand no crashes However unconvinced local tests gave broad enough data spread FCC suggested supplemental flight tests conducted other areas agency extended KG2XDA li cense nine AMA members across USA provided 200 additional flights Most modelers members AMAs first RC Committee covered both RC contest rules frequencies Chairman Walt Good Bethesda MD Clay Freese Chicago IL William Stel mach Ed Rockwood Palo Alto CA Dick Schumacher Van Nuys CA Warren Bartlett Detroit MI Harry Geyer Jim Schenck Pittsburgh PA Ed Lorenz Hyde Park NY midyear 1951 eight 300 tests completed marred glitch es considered reason able proof satisfactory RC operation 27255 MHz test Warren Bartlett tentionally flew near hospital using diathermy equipment 27 MHz frequency established 1000 ft too close causing glitches plane mile proved adequately safe distance showing no interference experimental radio gear homemade modelers using crystal control less five watts some cases modified 52MHz RC rigs formerly used Ham RCers Stepping back early 1951 over 200 flights completed felt time FCC engineers being much too conservative asking test flights much too slow getting started drafting some simple 27 MHz rules discussed situation lunching Dave Rabenhorst John Hopkins Lab both worked As both mod eler engineer clearly understood picture Any suggestions Dave asked said yes recommending go higher FCC organization speak di rectly seven FCC commis sioners final voters FCC ac tions Note FCC established Congress 1934 seven com missioners appointed US Presi PLAIN CRADLE-2 AlsoPurchase local hobby shop order direct~tet0 j3 Completely Fusiproof 6 Wide Fuselage Unbreakable es Flat Perfect Field Shop Same Day Shipping Nest eetIefIe return unused lt fuN refund Marty BerrSend $1796 plus $200 shipping handling 94 Stonefield Trail South Windsor CT 06074114 end 113 Scale Sizes 5 plus $200 S & H Want go vertical flintjet Series 04 ikytank FOf Tile shark sill allon jetlike performnc whO nor hassle ducted k5 enpens Both kits balsa cuounractios nit h spar wings y can act ommoda te standard mini nero o h channel radi nsyntens nih accept 20 2y nine engines noceptinna pyrforsancesset 21 25 rear en haunt enginen Thy ik uomesbmt docile inapt spea ds ki tnare mediate flyer ie offer plans canopies forA-4 SkyhewkF-20 Tigeraherk uisb airatch build Shifi Plans3k slug uput3k0000 soun Canopy $1000 Flawn only 400 sq area 330 sq area Other products available Poel Isjeitinn lireus 3f tenath 30 length Fans lain ginard Pnpes Insonatuon flodel Pro$4500 s/fl$4000 S/f doctu 1111 Isis B Plans Send check Money Order coo add $3- FL flea add 6% sales tax3055814477 PARRISH AIRCRAFT & Scale Models 1125 SW 49th Tar. 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$IC 5K20 $K720 fans $CDF-t $1996 Navy P40-i Skyray 1% e ength ing span 10 lbs oh $IC actible landing anar $CDF-2 6 Sill EPlinger Feandine Menebee AMA 14PF5 Hall Fame Prices lot conrpleea plans sub assanebly detailed parts lists Add $200 tee MaIlIng Tuba SeedIer brechura ahead crowd new broobere showing new Plan Sets 1989 Seed $1 etondable yost 1st order1 WE TECHNICAL SERVICES PO Box 76884-A Atlanta GA 30328 dent Sounds great DaveHow get speak Well said stepfather Sen ator Charles Tobey New Hampshire Im sure can arrange upon Dave stepped phone called senators office turned asked want appointment commissioner afternoon morrow decided tomorrow meeting FCC Commissioner George Sterling spring 1951 turning point acquisition 27255 MHz frequency RC As fellow DCRC member Carl Cessna walked down hall commis sioners office FCC staff members gawked RC plane toting Sterling gracious understanding probably because quickly learned active Ham operator since 1912 understood technical radio pects ease knowledge FCC commissioner hold Ham license Most appointees politically affiliated connected radio broadcast industry both As side note Ive just read QST Amateur Radio Journal January 1988 Sterling WlAE remains active Ham home Maine today five Hams got licenses 1912 still active today After carefully examining planes RC gear listening report AMAs flight test program 27255 MHz Sterling responded one-page sum mary proposal pushing FCC staff response posi tive believe reasonable plan maybe restrictive neces SUPER DELUXE PRE-BUILT KITR 1 Carbon Fiber reinforced Epoxy Glass Fuselage• 2 FACTORY SHEETED Carbon Fiber reinforced Ultralight Honeycomb Plug-in Wingrr 3 FACTORY SHEETED adjustable 8 removable stab 4 Tn conventional retract 5 Pre-cut firewallOnly AVAILABLE IN BASIC KIT ONLY $1Length-6067$450 Carbon Fiber Reinforced Fuselage Wing Area- 700 sq Latest Japanese Pattern Design n byWegi 775 850 bs Top Japanese Pilot able FAI AMAEttg ye 0cc Please add $15 shippingPATTERN TEK 1408298 0311 will happy pass along favorable recommendations Shortly thereafter AMA received preliminary draft rule-making Docket #10086 modified clude 27255 MHz frequency RC course AMA commented favorably Simple RC rules arrive1952 Novem ber 1951 final proposal rule-making Docket #10086 appeared amend ment Part 19 Rules Citizens Ra dio Service included AMA plan adopting 27255 MHz frequency RC Since no objections received FCC regulation became official March 24 1952 long struggle AMA finally won approval first homebuilt RC frequency following regulations applied new Class C stations 1 Frequency27255 MHz crystal control assure accuracy 2 Powerfive watts maximum 3 Emissionson/off carrier tone mod ulation 4 Type approval required crystal-controlled transmitters Thus homebuilt gear OK 5 license simple FCC Form 505 flier sends nearest FCC fice No exams required After five years effort part AMA FCC March 24 1952 great day indeed About month after 27255 MHz fre quency made available received letter FCC Commissioner Sterling enclosed clipping Washington Evening Star newspaper about Reginald Denny well-known movie star produced RC target drones US military during WW II Denny now proposing use radio equipment RC model fliers According clip ping Denny approached FCC .. turned down cold Exactly never found out note attached clipping FCC responding advertisers mention read about Model Aviation 200 Model Aviation ZAP UNIVERSITY COLLEGE OF GLUE KNOWLEDGE ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX AH Designs47 AMA Membership65 Academy Aviation R&D10 Ace Radio Control9 Aerodrome Models188 Aerospace Composite Prod43 Airtronics6-7 AI-tec Su-pr-Line Prod180 Altech Marketing179 181 183 American Jr Aircraft Co22 American Sailplane Des66 Astro Flight15 Authorized RC Service57 B&P Associates47 Quay Barber Models170 Berkeley Trading Co178 Marty Berr156 199 Blue Ridge Mach & Tools171 Blue Sky Enterprises169 Bolar Heli Research173 Dave Brown Products41 Byron Originals95 104 Campbell Tools Co173 Campbells Custom Kits166 Circus Hobbies186-188 Cleveland Model Supply16 Colorado Model Products8 Composite Aircraft Eng49 CompuServe175 Control Systems Labs161 Coverite1 63 Cox Hobbies101 Crenshaw Aero176 Culpepper Models Inc49 DGA Designs67 D&R Aircraft Mfg156 Davey Systems Corp157 Tom Dixon190 Dodgson Designs166 Doylejet171 Du-Bro Products Inc38 55 198 Elden-Ken Electronics197 FAI Model Supply189 FHS Supply Inc5 Fiberglass Master53 Fiorenze Hobby Center173 First US RC Flight School197 Flights Fancy Aeromodel174 Florlo Flyer177 Flyline Models197 Fourmost Products51 Fox Mfg Co162 Fults Dual Struts22 Futaba Corp America21 204 G&A Products51 GM Precision Products66 Gas Model Products189 Gator RC Products64 Carl Goldberg Models96 203 Gorham Model Products12 Paul K Guillow Inc174 Hi Performance Sailplanes173 High Performance Models55 High Sky67 Hobby Barn154-155 Hobby Dynamics111 114 Hobby Horn18 Hobby Lobby International17 Hobby Shirts & Hats197 Hobby Woods57 MS Atlanta184 Ikon Northwest Co39 Indy RC Sales Inc158-160 InVenture180 JR Radios111 114 JTec170 Jan Crystals18 Larry Jolly Model Products156 Jomar20 22 KD Grapphics42 K&B Mfg177 K&S Engineering198 K W Enterprises171 Kingsway Enterprises196 Kircher RC Products169 Kraft Midwest166 Kustom Kraftsmanship172 Kyosho185 Leisure Electronics163 Lone Star Models167 MACS Products64 MARC Show173 Memphis Model Market168 Jim Messers172 Micro Mark34-35 Midwest Products23 Model Rectifier Corp . Coy 2&3 819 Sid Morgan Plans182 Walt Moucha Models16 Mutchlers Hobbies164-165 NF Video Library42 NEPRO176 Nayco Co20 North Products169 Northeast Aerodynamics4 PacerTech12182191200 Paper Airplanes Intl172 Parrish Aircraft199 Pattern Tek200 John Peck Leisure Prod176 Pelican Enterprises198 Penn Valley Hobby Center169 Performance Hobbies176 Performance Products Ultd190 Perkins Avionics41 Phillips Aircraft Co182 Pica Products10 Planes & Things170 Polks Hobby Pot OGold169 Progress Mfg Co177 Pro-Tune Corp168 RB Bunch57 RC Buyers Guide22 RC Extras190 RJL Industries 66 Ragan/Barker Group47 Red Max Fuel5 Reynolds Jewelry181 Robart39 Robbe Model Sport11 Roun Tuit ..196 SAC66 SR Batteries153 Safety Plus16 53 Satellite City13 Scale Model Research171 Scale Plans & Photo Ser169 Sermos RC Snap Connectors64 Shamrock Competition Imports 9 Sheldons Hobby Shop20 Sig Mfg Co4 109 191 Skyline Hobby Mfg. Bob Smith Industries4 49 Square Cut Tools51 Stangel Enterprises198 Sullivan Iroducts102-103 Sunshine Hobbies67 Superior Aircraft174 Swanson Assoc20 Tatone Products Co178 Tidewater Hobby Enterprises161 Toledo RC Exposition171 Top Flite Models Inc113 Tower Hobbies192-195 Trader Jacks Buy Sell55 Tru-Turn189 VL Products67 Vinylwrite Custom Lettering64 WE Technical Services200 Williams Brothers53 Windsor Propeller Co43 Wing Mfg Co178 World EnginesCover 4 Nick Ziroli Models196 ZZ Enterprises57 Commissioner Sterling wrote Dr Good has fellow Denny Thats what call first-rate commis sioner modelers owe Sterling great debt successful outcome First Battle encouraging 1952 ac quired two RC channels 465 MHz 27255 MHz well simple no-exam permits just what wanted beginning EAA/Wischers Continued page 108 temperatures days Besides water demand high two survi val items heat humiditydeli ciously top-heavy soft serve cones May 1989 201
Edition: Model Aviation - 1989/05
Page Numbers: 88, 89, 90, 91, 92, 198, 199, 200, 201
Battle RC Frequencies now almost seems like right American switch RC transmitter fly plane hearts content its Its privilege right fought long hard modeling predeces sors over 40 years ago Part three-part series U Walt Good HOW WOULD like fly Radio Con trol AMA Nationals upon arrival discover 268 RC contes tantswith over 200 fre quency situationat 1958 Nats Chicagovividly illustrates painful steps AMA encountered its struggle obtain RC channels rap idly growing family RC fliers story early years fly ing RC frequencies battles fought obtain first RC chan nels FCC Over span 40 years Academy Model Aeronautics has en gaged least six confrontations Federal Communications Commission ac quire new RC channels protect channels already gained Equally impor tant fliers needed channels did require examinations licensing first battle begins acquisition single examination-free RC frequency last skirmish wont over until AMA has achieved its long-term goal gaining 80 exclusive RC channels Please note personal report based viewed events active participant almost phase por trayed story hope accurate its undoubtedly limited weakening memory hundreds ragged incom plete files gladly leave task filling gaps other generous souls participated efforts First look earliest beginnings 88 Model Aviation 4 authors twin brother Bill 1937-vintage transmitter Power output 100 watts note two big tubes An AC power cord runs outlet inside hangar author 1938 RC Guff model Note open side door revealing receiver relay Single-channel control rudder done using rubber-powered escapement THE EVENING STAR WMhJngton D CA-iSFEDERAL COMMUNICATIONS COMMISSION WEOSEODAY APRIL U 5952 Denny Envisions Radio Co -I es FutureFrom CEO E STERLING perfectly poHible soi recelvero thatCommissioner today model plane fans fly could get cost dow____________________________________________________________[v32][b2125429121100]] about 824 TheRemarks theIr creations radIo control mltters would much exAQA/Je Instead cIrcling wIre pensIve about $180 r ' tether planned sell ThIs Informed opln- clubs members Informed opIn can c wIth transmItters whlIIAJ0A Ion Iteginald ontrol plane Denny star d take five radio chan % stage andneis operate transmitter... screen Mr rudder control nyelevators etc took it1 i e about radioup Federal Communca 8 controlledtlons CommissIon tuinedF j down cold 11i models In-- vented Today Infinite numberl4 used , ultra high frequency channels e tar- available radIo con F Competition among builders IdAUINGOON 0 0 get practice tolled plane event meet ~ h ~runer planes has made pos guided - wd FCC has alIf D07aictemporary use 21251 possible new departuref. described megacycle wave band dem . model builders asa utopia could 1send planes fsr eyep ould see bF-be Above Reginald Denny movie star developer RC target drones during WW ii proposed FCC establish frequencies hobby RC planes Mr Denny claimed turned him down cold George Sterling figures apparently didnt know new 27255 MHz RC channel gone effect month earlier Below left L-R Walt Good Reginald Denny Bud Chapman lunching Paramount Studios 1938 Walt telling Denny about hobby RC planes Bud 1938 California Free Flight Gas Model Champ listens As FF Gas winners Walt Bud got airplane trips Hollywood tour Paramount Studios promoting movie Men Wings Right Walt Good Dorothy Lamour showboat set St Louis Blues Bud Walt parts movie extras grandstand audience scene Pre-World War W II RC Contests 19371941 Lets step back years just prior WW II see early RC fliers ac quired frequencies fly 1937 Nats Detroit first Nats RC event held RC pilots used amateur radio frequenciesprimarily 56 60 MHz six Nats entries acquired necessary amateur Ham licenses partners done transmitter signed air license holder sending call sign Morse code before flight signed off after flight During actual flight model builder part team used control buttons steer plane Legally speaking non-Ham al lowed operate transmitter overlooked days stories subject later Thus five RC Nats held 1937 through 1941 Ham frequencies used exclusively World War II shut down amateur radio en tirely 1942 1946 Ham transmit ters disabledas Radio Control hobby erstwhile RC hobbyists engaged military service work ing days nights weekends confiden tial hush-hush projects Uncle Sam After World War II 1946-1952 im mediate postwar years RC event re vived 1946 AMA Nats Wichita KS five RC entries year pilots flew great enthusi asm Again amateur radio frequencies used FCC shifted prewar 56-60 MHz band 50-54 MHz after war regulatory body still required Ham li cense obtain such license pass code test electronics test test radio regulationsnot easy task modeler wanted simple radio equipment simple radio license What RC hobbyists needed able obtain license exclusively RC flying examination Examination-free RC frequencies 1946 British modelers led way May 1989 89 RC competitions rorooo o 4p tosuoi 04oi, hr rho itoi ho nrrdI cidre Thr chip drrrol heir hop crc o ocrirroir crc ii Verrirerit IrrrloOotert cor hiro lrrrorvrry. rr horroorrrrl 004cr errilo C rrrrrrrlrtOricP C cirriricod rrrrroirrr arid Irrophr thrirt irk pp Vrorr itrrrirrit Iii di irk ni rkiirl ii irl hip diii hirk iii -A dli icud urrililii rrrurorr ii1 0did ii crc C CI cr Cc rIpohd iiirc l-I ivr crriiu i i1 As appeared July 1937 issue QST Ross Hull Byron Goodman assemble 13-fl RC Glider West Hartford CT along Clinton DeSoto staff QST amateur radio magazine introduced RO hobby radio amateurs securing examination-free RC license 27 MHz 460 MHz done means simple exchange let ters between D W Allen Society Model Aero Engineers British counter part AMA British Post fice represented Engineer-in-Chief Radio Branch Mr C E Clarke Mr Clarkes short reply Allen dated November 8 1946 sanctioned follow ing frequencies RC model use Britain Frequency #14605 MHz within Hz Frequency #22766-28 MHz Additional specifications Clarkes let ter follows Maximum input power five watts No special license required Use equipment RC communication Modelers US felt optimistic British could obtain RC frequencies quickly expected little no delay se curing similar response Federal Communications Commission FCC Un fortunately wrong Several years pass before obtained similar RC use frequencies America First Battle RC Frequencies 1946 living Washington DC 1946 Russ Nichols executive diFEDERAL COMMUNICATIONS COMMISSION WASHINGTON 25 DC November 4 1948 ARORESS ALL COMMUNICATIONS reply refer 6104 Loademy Model Lsronautics l03 Conxeoticut Lvenue NW Washington 6 D 0 Gentlemen Observation made during National Model Airoraft Meet Naval Air Station Olathe Kansas August 4 8 1948 inclusive revealed number ireg1slarities oomneo tion use 01 amateur stations purpose remotely controlling model aircraft radio intended t oitationa will jasued instance However 1l appreciated organization calls attention members foflowing omissions appear quit prevalent airt emphasizes amat eur stations operated purpose applicable rules should adhered Thzring course Meet foflowing omissions As result FCC inspectors report AMA received letter FCC outlining violations committed RC contestants 1948 Nationals held Olathe KS rector AMA immediately dis cussed modelers RC frequency needs him Having worked several gov eminent agencies before joining AMA Russ familiar some proce dures suggested arrange visit Federal Communications Commis sion discuss matter RC frequencies face-to-face January 1947 letter FCC AMA ouflined its RC airplane needs fashion similar British SMAE letter requested exploratory meeting first meeting held April 30 1947 Eight FCC engineers representing seven FCC departments attended Russ representing AMA pos itive result FCC suggestion newly contemplated Citizens Radio Service might able offer channel RC Af ter several visits FCC personnel year Russ thought making some progressalthough still ob tained no RC frequencies 1947 Nats Minneapolis seven RC entries number suc cessful flights RC planes growing up However still using Ham fre quencies concomitant requirement amateur license just gotten Ham license after three attempts months pass code test must admit thing hurt watching 10year-old kid zip through code test first try As consolation finished writ ten parts electronics regulations exams before did Follow-up meetings between FCC AMA discuss simple no exam RC frequencies equally unproductive 1948 drew close still achieved nothing tangible Admittedly bit slow learning deal FCCs bureaucratic system however about get some action RC modelers charged FCC viola tions1948 1948 Nats August Olathe KS saw 14 RC entries demon strated numerous flights also scored first FCC observers appeared Nats showed interest RC event expressed concern AMA November 1948 letter detailing number violations FCC regulations through improper use amateur sta tions no citations made against Ham operators time FCC dicated might future ci tation type could result withdrawal Hams license FCC finally gotten FCCs attention respect RC planes frequen cies Ironically wasnt sort atten tion hoped FCC observers learned later inspectors local field office simply doing duty As described FCC report fol lowing six violations cited FCC inspectors During course meet fol lowing omissions noted 90 Model Aviation noted 1 No provision kind made measurement emitted frequency violation Section 12135 rules 2 some instances amateur stations operated unlicensed persons licensed amateurs stood simply operated unlicensed persons li censed operator attendance violation Section 1228 rules either case 3 Failure identify amateur station transmitting control signals violation Section 12159 rules 4 Although amateur stations being operated portable stations Olathe KS overall period 48 hours licensees submitted notices portable operation Commissions Engineer Charge Kansas City MO violation Section 1291 rules 5 Several amateur station transmitters observed operating outside signed amateur frequency bands viola tion Sections 12111 12113 rules 6 Little no effort made maintain proper station log violation Section 12136 rules AMA took FCC report Ham radio violations 1948 Nats seriously cautioning its Ham users 50 MHz band RC follow stated FCC regu lations Although several violated rules easily correctible regula tion opinion haunt Ham RC fliers 40 yearsand present day Section 1228 allowed licensed operator Ham voice station hand microphone person wished speak transmit voice via radio prohibited other mode emission such Morse codes on-off signals tones sent anyone other licensed operator impact RC flier Ham operator permitted hand RC control box anyone elseeven own son friendfor steering plane rule still effect today FCC Violations1949 second 1949 letter FCC cited new amateur ra dio violations letter sent AMA directly charged permitting certain unlicensed persons participating 18th National AMA Meet Naval Air Station Olathe KS engage portable operation amateur station W3NPS violation Section 1228 Commissions rules two-page reply FCC must have effective because let offthis time Its possible took considera tion fact Rudder Bug won RC event year doubt Although viewpoint RC modeler some FCC-cited violations might seem like peccadilloes prov able infringements rules effect amateur two-way communication nonvoice signals clearly deci sively illustrated certain FCC rules Ham operation simply incom patible Radio Control modeler practice FCC IMrZT DE DK1n5 recent conference Weahington office Federal C nicatione Ciaioc brought out fact FCC Ie genuinely terested solving unl4ue problem brought about advent radio control flying Urge scale Attending rpreaentlng Academy Dr Qood Chairmen Radio Control Cmaitte CO Wright AMA President Willie C Drown firet Free ideat Academy end Headquartere staff mabere ooweinua Opinion foflowing conference signif icant forward etep usda AMA effort obtain lees strin gent requirements obtaining FCC Uoeue radio control flying leading op conference wee letter received fron Con iniesion calling ettention nuer aeqlem nonconforndty regulaticca wMch observed end reported F C C off ciala attending Rational Meet Olatha diacuesing letter waa specifically requested notice given AMA einbere ell radio operation non-ailitary governmental nature includ radio control flying Ie sub3eat FCC control perti nent regulatiorm must obeyed Whle thie euheot miga well point out Academy hopes obtain relaxation requirement us aay fly radio control oon sense dictate obeying law FCC ot reasonably inpected cooperate us pereiet cooperating witi Thus November 1948 Issue Model Aviation reported AMA FCC held discussions Olathe violations upshot meeting new FCC regulations would required because RC operation specifically covered existing FCC regulations Obviously basic conflict tween FCC AMA viewpoints much RC modeler should reason ably required know apparent FCC philosophy modeler clever enough build tame RC model ought have no trouble passing exami nations obtain Ham license AMA philosophy different same clever modeler ought able build use simple low-powered trans mitter receiver RC having learn skills required communications-oriented radio amateur negotiations between FCC AMA during formative years regulating RC frequencies battle lines drawn around fundamental difference viewFEDERAL COMMUNICATIONS COMM ISSION WASHINGTON 25 DC Septenber 16 1949 TO TUE SECRETARY reply refer 8032 Mr Walter Good W3NPS 9123 Eton Road Silver Spring Maryland Dear Sir Commission has received information its Engineer Charge Kansas City Lljasouri soveral occasions during period July 25 July 30 1949 permitted certain unlicensed persons participating 113th National Academy Llodel Aeronautics Lleet Naval Air Station Olathe Kansas engage portable operation enateur station violation Section 318 Communications Act 1934 amended apd Section 1228 Commissions Rules requested submit ion explanation may have youq matter tfr After Nats 1949 FCC threatened revoke Walt Goods Ham radio license allow ing unlicensed persons operate amateur station three-page reply Walt pre vented happening close call OK FCC allow unlicensed person talk radio station OK allow fly airplane May 1989 91 Radio Control R C enthusiasts have long wanted License-Free band its now equipment VERNON C MACNAIB quarter century has illegal operate radio transmitter license granted Federal Bureau currently FCC Federal Connunicalions Commission law modified June 1949 allow layman Mr John Q Public obtain license operate radio transmitter necessity being examined determine technical bnowledge radio ecen bnowing character International Morse Code Citicens Band plain citicens modrl airplane builders fliers opened June first course ceclaiss definite restrictions because transmis sions must interfere already established licensrd sercicco excerpted follows fr " Regulations governir. . As reported Model Airplane News 1950 Radio Control now Vernon Mac Nabb produced first examination-free sets operation 465 MHz frequency required type-approval tests FCC lab no home-built sets allowed operate Treasslttar aaeptetIs .ttoaatahad R5t, battacta t rlshi point second AMA/FCC meeting1948 Within two weeks after 1948 FCC vio lations letter AMA President-elect C 0 Wright visited Washington DC joined AMA meeting FCC discuss letter Attending AMA Willis Brown first AMA president active Ham Russ Nichols Walt Good chairman AMA RC Com mittee As reported AMA Model Aviation November 30 1948 recent conference Washington office FCC re vealed fact FCC genuinely terested solving unique problems brought about advent Radio Con trol flying large scale positive FCC action resulted AMA/FCC meeting June 1 1949 FCC established first Citizens Radio Service channel RC regulation specified RC flier may use frequency 465 MHz simple Citizen Band type license 465 MHz transmitter must manufactured item type ap proved FCC laboratoryno homebuilt units allowed represented good start FCC recognition modelers need examfree RC operation Some manufacturers thought 465 MHz frequency would too difficult ap ply RC because considered too high radio frequency available technology example vacuum tubes market sufficient quality used receiver small tube six-volt heater-type cath ode drew 300 mAh needed heavy battery give adequate flight life Ive told Nate Rambo used Farmpack brand battery intended radios farm achieve flight time de sired Vernon MacNabb Citizen-Ship Ra dio Corporation bolstered thorough knowledge radio technology compo nents persuaded Idea company Indi anapolis tackle transmitter re ceiver design George Fathauer engineered design help partners Sam Dick Goldstein project took better part year although much time spent FCC laboratories type approval tests made transmitter first rejected FCC because frequency drifted out toler ance temperatures below freezing After problem corrected transmitter returned FCCwhere remained such long time Mac Nabb urged Indiana senator Homer Capehart intervene Capeharts inquir ies disclosed transmitter passed tests paperwork hadnt completed approval certificate arrived three days later just time Gene Foxworthy fly Citizenship 465 MHz gear 1950 RC Natsand win MacNabb still has first RC license 465 MHz issued FCC June 26th 1950 transmitter receiver sold $3995 inexpensive con verted 1988 dollars todays market $3995 price tag would translate over $300 Through recent contacts some pioneering names early years Radio Control learned MacNabb day lives Pompano Beach FL plays golf three times week still flies little RCat 85 years age told paid Idea Company sum $500 total 465 MHz development concept tested production design Gene Foxworthy wife Martha re tired West Virginia still active RC talk weekly Ham ra dios Gene designed first mechanical parts MacNabb gear well doing test flying Goldstein brothers earned PhD physics theyre both professors astronomy University Vir ginia other Cnlifornia Obviously high-powered devel opment team Still FCC RC violations1951 Andrews Field near Washington DC 1951 FCC again alleged improper us age amateur frequency RC again issued warning letters happened CD RC event violation cited spent consider able time conversing FCC inspec torpartly divert him shutting down event before finished flying Al though ploy worked didnt prevent letter reprimand came through later stating RC opera tor must have Ham license However FCC stopped short taking license away thank goodness Participants 1951 Nats RC event came up creative roundabout solu tion operator licensing problem lo cal Ham operated unlicensed RC transmitters holding controls hand pushing buttons re sponse voice commands pilot feasible way completing RC event satisfying local FCC spector hardly satisfactory modelers viewpoint Up time except re cently approved 465 MHz gear Ham frequencies available RC use As abundanfly clear cited examples amateur frequencies still re quired Ham operator license spite awkwardness conform ing Ham operator rules owe much thanks Ham community its contri butions pioneering early RC planes electronics efforts made possi ble non-Ham experimenters join advancing tide development RC Air craft Ross Hull Byron Goodman Clinton DeSoto others ARRL Head quarters staff deserve mention Turning operator question newly acquired 465 MHz RC channel no firm guidelines set forth owner 465 MHz gear al lowable operator controls May owner hand transmitter friend try controls Since Citizens Radio Ser vice rules clear point FCC modified request AMA shortly after 465 MHz came un Continued page 198 92 Model Aviation England past three years 61 49 both suitable model also believe solid 45 Royal OS suit ably de-tuned would plenty power current setup Merco 6155 285 venturi SST silencer 10 holes open no pressure Taffinders 5% nitro PA fuel 114 x 6 Bolly three-blade prop engine has two 020 head gaskets added further soften four-cycle/twocycle break combination gets through pattern using just 3% oz fuel Lines 70 ft 018 cable model weighs 64 oz current trim finish see Sig dopenitrate clear base followed butyrate colorover silkspan wing 56-oz Sig glass cloth epoxy everywhere else am com pletely convinced glass cloth epoxy way go speed strength fuel-proofing stability finish As far can tell light lighter tra ditional dope-and-paper finish have very good results using Loctite Finishing Epoxy cloth stuff sands like chalk leaves very little material plane use dope colors nitrate bonding coat must first applied over epoxy butyrate wont adhere directly epoxy very well usually spray two coats nitrate clear over sanded epoxy-glass surface sand lightly spray filler coat talc nitrate After wet-sanded 400-grit paper spray colors last thought build model again would add another inch inch-and-a-half tail moment length would increase elevators groove leverage would also look scalelike may wish incorpor ate change own T-60 II Fly safe fly quiet contact Don McClave 221 NW 2nd Ave Suite 300 Portland OR 92709 find out can join PAMPA association model Stunt fliers enthusiasts responding advertisers mention read about ModelAviation Frequency Battle/Good Continued page 92 der CRS umbrella Under new regu lation persons other owner would allowed operate RC transmitter owners permission fore stalled possible repetition mis understandings concerning piloting occurred modelers using ama teur radio frequencies frequency home-built RC gear 1949-1952 Gratified though 1949 have 465 MHz frequency ap proved RC use some us felt strongly still worthwhile pursue fre quency allocation simple home-built gear almost three years before FCC handed us victory second fa vorable ruling concerning RC frequency us age permitting home-built gear dispens ing requirement examina tion story achieved C/LNewR/C IHANGERJCATALOG Kits OR Plans I Innovative InexpensiveI Quick & Easy Build rnttttNrrr Ut QUICK & LIVELY SPORT RIPLASIE GREAT FOR SMALL FIELDSOr d e r y o u r s t o d y I gned new ton 074 Queen nee engine $2 ISpecifications Wing Span 26 Wing Area 275 Sq Length 25 Loading 13 02/Sq Ft. Weight 11/2 Lbs I Radio 4Channel micro servos Expeneote aileron trainer qualifies pilot sleek look ing airplane Sinpie durable rectangular 2spar nheeted wings sheeted hon type fonelage nolid tail surf aces pre-cut AAA balsa ply full-sian illustrated plans STANGEL ENTERPRISES conplete instructions hardware package wheels ftc p 0 BOX 336 Ml EAA Ilana $4995 $35O 5kM Plans Only S995cSllO 5kM MEMBERWAUKEIHA W SCONS N 0 8 1336 AMJ 198 Model Aviation K&S METAL CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture f carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises 2540 RIDGE ROAD LANSING ILLINOIS 60438 Phone 312-895-8151 Aluminum/Brass/Copper Tubing & Shapes Music Wire Tos Soldenng Irons Silk Silk Span Finishing Matenals Send 25 br catalog KASigring A017 W ROfli *aat goal follows 27255 MHz frequency desig nated FCC use Industrial Scientific Medical ISM band indus trial controls scientific experiments medical applications such diathermy practice however other users excludedso much frequency known unofficially FCC Garbage Band sensed despite hangers-on already acquired licensing con struction requirements 27255 MHz frequency would minimalif could demonstrate channel would work RC After British modelers using 27 MHz RC since 1946 over three years FCC reluctant consider 27255 MHz RC some proof its work ability USA environment end FCC provided AMA Ex perimental License KG2XDA actual flight tests begin February 1950 July 1950 over 100 flights made Washington DC area oaly two cases apparent interference flight planeand no crashes However unconvinced local tests gave broad enough data spread FCC suggested supplemental flight tests conducted other areas agency extended KG2XDA li cense nine AMA members across USA provided 200 additional flights Most modelers members AMAs first RC Committee covered both RC contest rules frequencies Chairman Walt Good Bethesda MD Clay Freese Chicago IL William Stel mach Ed Rockwood Palo Alto CA Dick Schumacher Van Nuys CA Warren Bartlett Detroit MI Harry Geyer Jim Schenck Pittsburgh PA Ed Lorenz Hyde Park NY midyear 1951 eight 300 tests completed marred glitch es considered reason able proof satisfactory RC operation 27255 MHz test Warren Bartlett tentionally flew near hospital using diathermy equipment 27 MHz frequency established 1000 ft too close causing glitches plane mile proved adequately safe distance showing no interference experimental radio gear homemade modelers using crystal control less five watts some cases modified 52MHz RC rigs formerly used Ham RCers Stepping back early 1951 over 200 flights completed felt time FCC engineers being much too conservative asking test flights much too slow getting started drafting some simple 27 MHz rules discussed situation lunching Dave Rabenhorst John Hopkins Lab both worked As both mod eler engineer clearly understood picture Any suggestions Dave asked said yes recommending go higher FCC organization speak di rectly seven FCC commis sioners final voters FCC ac tions Note FCC established Congress 1934 seven com missioners appointed US Presi PLAIN CRADLE-2 AlsoPurchase local hobby shop order direct~tet0 j3 Completely Fusiproof 6 Wide Fuselage Unbreakable es Flat Perfect Field Shop Same Day Shipping Nest eetIefIe return unused lt fuN refund Marty BerrSend $1796 plus $200 shipping handling 94 Stonefield Trail South Windsor CT 06074114 end 113 Scale Sizes 5 plus $200 S & H Want go vertical flintjet Series 04 ikytank FOf Tile shark sill allon jetlike performnc whO nor hassle ducted k5 enpens Both kits balsa cuounractios nit h spar wings y can act ommoda te standard mini nero o h channel radi nsyntens nih accept 20 2y nine engines noceptinna pyrforsancesset 21 25 rear en haunt enginen Thy ik uomesbmt docile inapt spea ds ki tnare mediate flyer ie offer plans canopies forA-4 SkyhewkF-20 Tigeraherk uisb airatch build Shifi Plans3k slug uput3k0000 soun Canopy $1000 Flawn only 400 sq area 330 sq area Other products available Poel Isjeitinn lireus 3f tenath 30 length Fans lain ginard Pnpes Insonatuon flodel Pro$4500 s/fl$4000 S/f doctu 1111 Isis B Plans Send check Money Order coo add $3- FL flea add 6% sales tax3055814477 PARRISH AIRCRAFT & Scale Models 1125 SW 49th Tar. 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$IC 5K20 $K720 fans $CDF-t $1996 Navy P40-i Skyray 1% e ength ing span 10 lbs oh $IC actible landing anar $CDF-2 6 Sill EPlinger Feandine Menebee AMA 14PF5 Hall Fame Prices lot conrpleea plans sub assanebly detailed parts lists Add $200 tee MaIlIng Tuba SeedIer brechura ahead crowd new broobere showing new Plan Sets 1989 Seed $1 etondable yost 1st order1 WE TECHNICAL SERVICES PO Box 76884-A Atlanta GA 30328 dent Sounds great DaveHow get speak Well said stepfather Sen ator Charles Tobey New Hampshire Im sure can arrange upon Dave stepped phone called senators office turned asked want appointment commissioner afternoon morrow decided tomorrow meeting FCC Commissioner George Sterling spring 1951 turning point acquisition 27255 MHz frequency RC As fellow DCRC member Carl Cessna walked down hall commis sioners office FCC staff members gawked RC plane toting Sterling gracious understanding probably because quickly learned active Ham operator since 1912 understood technical radio pects ease knowledge FCC commissioner hold Ham license Most appointees politically affiliated connected radio broadcast industry both As side note Ive just read QST Amateur Radio Journal January 1988 Sterling WlAE remains active Ham home Maine today five Hams got licenses 1912 still active today After carefully examining planes RC gear listening report AMAs flight test program 27255 MHz Sterling responded one-page sum mary proposal pushing FCC staff response posi tive believe reasonable plan maybe restrictive neces SUPER DELUXE PRE-BUILT KITR 1 Carbon Fiber reinforced Epoxy Glass Fuselage• 2 FACTORY SHEETED Carbon Fiber reinforced Ultralight Honeycomb Plug-in Wingrr 3 FACTORY SHEETED adjustable 8 removable stab 4 Tn conventional retract 5 Pre-cut firewallOnly AVAILABLE IN BASIC KIT ONLY $1Length-6067$450 Carbon Fiber Reinforced Fuselage Wing Area- 700 sq Latest Japanese Pattern Design n byWegi 775 850 bs Top Japanese Pilot able FAI AMAEttg ye 0cc Please add $15 shippingPATTERN TEK 1408298 0311 will happy pass along favorable recommendations Shortly thereafter AMA received preliminary draft rule-making Docket #10086 modified clude 27255 MHz frequency RC course AMA commented favorably Simple RC rules arrive1952 Novem ber 1951 final proposal rule-making Docket #10086 appeared amend ment Part 19 Rules Citizens Ra dio Service included AMA plan adopting 27255 MHz frequency RC Since no objections received FCC regulation became official March 24 1952 long struggle AMA finally won approval first homebuilt RC frequency following regulations applied new Class C stations 1 Frequency27255 MHz crystal control assure accuracy 2 Powerfive watts maximum 3 Emissionson/off carrier tone mod ulation 4 Type approval required crystal-controlled transmitters Thus homebuilt gear OK 5 license simple FCC Form 505 flier sends nearest FCC fice No exams required After five years effort part AMA FCC March 24 1952 great day indeed About month after 27255 MHz fre quency made available received letter FCC Commissioner Sterling enclosed clipping Washington Evening Star newspaper about Reginald Denny well-known movie star produced RC target drones US military during WW II Denny now proposing use radio equipment RC model fliers According clip ping Denny approached FCC .. turned down cold Exactly never found out note attached clipping FCC responding advertisers mention read about Model Aviation 200 Model Aviation ZAP UNIVERSITY COLLEGE OF GLUE KNOWLEDGE ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX AH Designs47 AMA Membership65 Academy Aviation R&D10 Ace Radio Control9 Aerodrome Models188 Aerospace Composite Prod43 Airtronics6-7 AI-tec Su-pr-Line Prod180 Altech Marketing179 181 183 American Jr Aircraft Co22 American Sailplane Des66 Astro Flight15 Authorized RC Service57 B&P Associates47 Quay Barber Models170 Berkeley Trading Co178 Marty Berr156 199 Blue Ridge Mach & Tools171 Blue Sky Enterprises169 Bolar Heli Research173 Dave Brown Products41 Byron Originals95 104 Campbell Tools Co173 Campbells Custom Kits166 Circus Hobbies186-188 Cleveland Model Supply16 Colorado Model Products8 Composite Aircraft Eng49 CompuServe175 Control Systems Labs161 Coverite1 63 Cox Hobbies101 Crenshaw Aero176 Culpepper Models Inc49 DGA Designs67 D&R Aircraft Mfg156 Davey Systems Corp157 Tom Dixon190 Dodgson Designs166 Doylejet171 Du-Bro Products Inc38 55 198 Elden-Ken Electronics197 FAI Model Supply189 FHS Supply Inc5 Fiberglass Master53 Fiorenze Hobby Center173 First US RC Flight School197 Flights Fancy Aeromodel174 Florlo Flyer177 Flyline Models197 Fourmost Products51 Fox Mfg Co162 Fults Dual Struts22 Futaba Corp America21 204 G&A Products51 GM Precision Products66 Gas Model Products189 Gator RC Products64 Carl Goldberg Models96 203 Gorham Model Products12 Paul K Guillow Inc174 Hi Performance Sailplanes173 High Performance Models55 High Sky67 Hobby Barn154-155 Hobby Dynamics111 114 Hobby Horn18 Hobby Lobby International17 Hobby Shirts & Hats197 Hobby Woods57 MS Atlanta184 Ikon Northwest Co39 Indy RC Sales Inc158-160 InVenture180 JR Radios111 114 JTec170 Jan Crystals18 Larry Jolly Model Products156 Jomar20 22 KD Grapphics42 K&B Mfg177 K&S Engineering198 K W Enterprises171 Kingsway Enterprises196 Kircher RC Products169 Kraft Midwest166 Kustom Kraftsmanship172 Kyosho185 Leisure Electronics163 Lone Star Models167 MACS Products64 MARC Show173 Memphis Model Market168 Jim Messers172 Micro Mark34-35 Midwest Products23 Model Rectifier Corp . Coy 2&3 819 Sid Morgan Plans182 Walt Moucha Models16 Mutchlers Hobbies164-165 NF Video Library42 NEPRO176 Nayco Co20 North Products169 Northeast Aerodynamics4 PacerTech12182191200 Paper Airplanes Intl172 Parrish Aircraft199 Pattern Tek200 John Peck Leisure Prod176 Pelican Enterprises198 Penn Valley Hobby Center169 Performance Hobbies176 Performance Products Ultd190 Perkins Avionics41 Phillips Aircraft Co182 Pica Products10 Planes & Things170 Polks Hobby Pot OGold169 Progress Mfg Co177 Pro-Tune Corp168 RB Bunch57 RC Buyers Guide22 RC Extras190 RJL Industries 66 Ragan/Barker Group47 Red Max Fuel5 Reynolds Jewelry181 Robart39 Robbe Model Sport11 Roun Tuit ..196 SAC66 SR Batteries153 Safety Plus16 53 Satellite City13 Scale Model Research171 Scale Plans & Photo Ser169 Sermos RC Snap Connectors64 Shamrock Competition Imports 9 Sheldons Hobby Shop20 Sig Mfg Co4 109 191 Skyline Hobby Mfg. Bob Smith Industries4 49 Square Cut Tools51 Stangel Enterprises198 Sullivan Iroducts102-103 Sunshine Hobbies67 Superior Aircraft174 Swanson Assoc20 Tatone Products Co178 Tidewater Hobby Enterprises161 Toledo RC Exposition171 Top Flite Models Inc113 Tower Hobbies192-195 Trader Jacks Buy Sell55 Tru-Turn189 VL Products67 Vinylwrite Custom Lettering64 WE Technical Services200 Williams Brothers53 Windsor Propeller Co43 Wing Mfg Co178 World EnginesCover 4 Nick Ziroli Models196 ZZ Enterprises57 Commissioner Sterling wrote Dr Good has fellow Denny Thats what call first-rate commis sioner modelers owe Sterling great debt successful outcome First Battle encouraging 1952 ac quired two RC channels 465 MHz 27255 MHz well simple no-exam permits just what wanted beginning EAA/Wischers Continued page 108 temperatures days Besides water demand high two survi val items heat humiditydeli ciously top-heavy soft serve cones May 1989 201
Edition: Model Aviation - 1989/05
Page Numbers: 88, 89, 90, 91, 92, 198, 199, 200, 201
Battle RC Frequencies now almost seems like right American switch RC transmitter fly plane hearts content its Its privilege right fought long hard modeling predeces sors over 40 years ago Part three-part series U Walt Good HOW WOULD like fly Radio Con trol AMA Nationals upon arrival discover 268 RC contes tantswith over 200 fre quency situationat 1958 Nats Chicagovividly illustrates painful steps AMA encountered its struggle obtain RC channels rap idly growing family RC fliers story early years fly ing RC frequencies battles fought obtain first RC chan nels FCC Over span 40 years Academy Model Aeronautics has en gaged least six confrontations Federal Communications Commission ac quire new RC channels protect channels already gained Equally impor tant fliers needed channels did require examinations licensing first battle begins acquisition single examination-free RC frequency last skirmish wont over until AMA has achieved its long-term goal gaining 80 exclusive RC channels Please note personal report based viewed events active participant almost phase por trayed story hope accurate its undoubtedly limited weakening memory hundreds ragged incom plete files gladly leave task filling gaps other generous souls participated efforts First look earliest beginnings 88 Model Aviation 4 authors twin brother Bill 1937-vintage transmitter Power output 100 watts note two big tubes An AC power cord runs outlet inside hangar author 1938 RC Guff model Note open side door revealing receiver relay Single-channel control rudder done using rubber-powered escapement THE EVENING STAR WMhJngton D CA-iSFEDERAL COMMUNICATIONS COMMISSION WEOSEODAY APRIL U 5952 Denny Envisions Radio Co -I es FutureFrom CEO E STERLING perfectly poHible soi recelvero thatCommissioner today model plane fans fly could get cost dow____________________________________________________________[v32][b2125429121100]] about 824 TheRemarks theIr creations radIo control mltters would much exAQA/Je Instead cIrcling wIre pensIve about $180 r ' tether planned sell ThIs Informed opln- clubs members Informed opIn can c wIth transmItters whlIIAJ0A Ion Iteginald ontrol plane Denny star d take five radio chan % stage andneis operate transmitter... screen Mr rudder control nyelevators etc took it1 i e about radioup Federal Communca 8 controlledtlons CommissIon tuinedF j down cold 11i models In-- vented Today Infinite numberl4 used , ultra high frequency channels e tar- available radIo con F Competition among builders IdAUINGOON 0 0 get practice tolled plane event meet ~ h ~runer planes has made pos guided - wd FCC has alIf D07aictemporary use 21251 possible new departuref. described megacycle wave band dem . model builders asa utopia could 1send planes fsr eyep ould see bF-be Above Reginald Denny movie star developer RC target drones during WW ii proposed FCC establish frequencies hobby RC planes Mr Denny claimed turned him down cold George Sterling figures apparently didnt know new 27255 MHz RC channel gone effect month earlier Below left L-R Walt Good Reginald Denny Bud Chapman lunching Paramount Studios 1938 Walt telling Denny about hobby RC planes Bud 1938 California Free Flight Gas Model Champ listens As FF Gas winners Walt Bud got airplane trips Hollywood tour Paramount Studios promoting movie Men Wings Right Walt Good Dorothy Lamour showboat set St Louis Blues Bud Walt parts movie extras grandstand audience scene Pre-World War W II RC Contests 19371941 Lets step back years just prior WW II see early RC fliers ac quired frequencies fly 1937 Nats Detroit first Nats RC event held RC pilots used amateur radio frequenciesprimarily 56 60 MHz six Nats entries acquired necessary amateur Ham licenses partners done transmitter signed air license holder sending call sign Morse code before flight signed off after flight During actual flight model builder part team used control buttons steer plane Legally speaking non-Ham al lowed operate transmitter overlooked days stories subject later Thus five RC Nats held 1937 through 1941 Ham frequencies used exclusively World War II shut down amateur radio en tirely 1942 1946 Ham transmit ters disabledas Radio Control hobby erstwhile RC hobbyists engaged military service work ing days nights weekends confiden tial hush-hush projects Uncle Sam After World War II 1946-1952 im mediate postwar years RC event re vived 1946 AMA Nats Wichita KS five RC entries year pilots flew great enthusi asm Again amateur radio frequencies used FCC shifted prewar 56-60 MHz band 50-54 MHz after war regulatory body still required Ham li cense obtain such license pass code test electronics test test radio regulationsnot easy task modeler wanted simple radio equipment simple radio license What RC hobbyists needed able obtain license exclusively RC flying examination Examination-free RC frequencies 1946 British modelers led way May 1989 89 RC competitions rorooo o 4p tosuoi 04oi, hr rho itoi ho nrrdI cidre Thr chip drrrol heir hop crc o ocrirroir crc ii Verrirerit IrrrloOotert cor hiro lrrrorvrry. rr horroorrrrl 004cr errilo C rrrrrrrlrtOricP C cirriricod rrrrroirrr arid Irrophr thrirt irk pp Vrorr itrrrirrit Iii di irk ni rkiirl ii irl hip diii hirk iii -A dli icud urrililii rrrurorr ii1 0did ii crc C CI cr Cc rIpohd iiirc l-I ivr crriiu i i1 As appeared July 1937 issue QST Ross Hull Byron Goodman assemble 13-fl RC Glider West Hartford CT along Clinton DeSoto staff QST amateur radio magazine introduced RO hobby radio amateurs securing examination-free RC license 27 MHz 460 MHz done means simple exchange let ters between D W Allen Society Model Aero Engineers British counter part AMA British Post fice represented Engineer-in-Chief Radio Branch Mr C E Clarke Mr Clarkes short reply Allen dated November 8 1946 sanctioned follow ing frequencies RC model use Britain Frequency #14605 MHz within Hz Frequency #22766-28 MHz Additional specifications Clarkes let ter follows Maximum input power five watts No special license required Use equipment RC communication Modelers US felt optimistic British could obtain RC frequencies quickly expected little no delay se curing similar response Federal Communications Commission FCC Un fortunately wrong Several years pass before obtained similar RC use frequencies America First Battle RC Frequencies 1946 living Washington DC 1946 Russ Nichols executive diFEDERAL COMMUNICATIONS COMMISSION WASHINGTON 25 DC November 4 1948 ARORESS ALL COMMUNICATIONS reply refer 6104 Loademy Model Lsronautics l03 Conxeoticut Lvenue NW Washington 6 D 0 Gentlemen Observation made during National Model Airoraft Meet Naval Air Station Olathe Kansas August 4 8 1948 inclusive revealed number ireg1slarities oomneo tion use 01 amateur stations purpose remotely controlling model aircraft radio intended t oitationa will jasued instance However 1l appreciated organization calls attention members foflowing omissions appear quit prevalent airt emphasizes amat eur stations operated purpose applicable rules should adhered Thzring course Meet foflowing omissions As result FCC inspectors report AMA received letter FCC outlining violations committed RC contestants 1948 Nationals held Olathe KS rector AMA immediately dis cussed modelers RC frequency needs him Having worked several gov eminent agencies before joining AMA Russ familiar some proce dures suggested arrange visit Federal Communications Commis sion discuss matter RC frequencies face-to-face January 1947 letter FCC AMA ouflined its RC airplane needs fashion similar British SMAE letter requested exploratory meeting first meeting held April 30 1947 Eight FCC engineers representing seven FCC departments attended Russ representing AMA pos itive result FCC suggestion newly contemplated Citizens Radio Service might able offer channel RC Af ter several visits FCC personnel year Russ thought making some progressalthough still ob tained no RC frequencies 1947 Nats Minneapolis seven RC entries number suc cessful flights RC planes growing up However still using Ham fre quencies concomitant requirement amateur license just gotten Ham license after three attempts months pass code test must admit thing hurt watching 10year-old kid zip through code test first try As consolation finished writ ten parts electronics regulations exams before did Follow-up meetings between FCC AMA discuss simple no exam RC frequencies equally unproductive 1948 drew close still achieved nothing tangible Admittedly bit slow learning deal FCCs bureaucratic system however about get some action RC modelers charged FCC viola tions1948 1948 Nats August Olathe KS saw 14 RC entries demon strated numerous flights also scored first FCC observers appeared Nats showed interest RC event expressed concern AMA November 1948 letter detailing number violations FCC regulations through improper use amateur sta tions no citations made against Ham operators time FCC dicated might future ci tation type could result withdrawal Hams license FCC finally gotten FCCs attention respect RC planes frequen cies Ironically wasnt sort atten tion hoped FCC observers learned later inspectors local field office simply doing duty As described FCC report fol lowing six violations cited FCC inspectors During course meet fol lowing omissions noted 90 Model Aviation noted 1 No provision kind made measurement emitted frequency violation Section 12135 rules 2 some instances amateur stations operated unlicensed persons licensed amateurs stood simply operated unlicensed persons li censed operator attendance violation Section 1228 rules either case 3 Failure identify amateur station transmitting control signals violation Section 12159 rules 4 Although amateur stations being operated portable stations Olathe KS overall period 48 hours licensees submitted notices portable operation Commissions Engineer Charge Kansas City MO violation Section 1291 rules 5 Several amateur station transmitters observed operating outside signed amateur frequency bands viola tion Sections 12111 12113 rules 6 Little no effort made maintain proper station log violation Section 12136 rules AMA took FCC report Ham radio violations 1948 Nats seriously cautioning its Ham users 50 MHz band RC follow stated FCC regu lations Although several violated rules easily correctible regula tion opinion haunt Ham RC fliers 40 yearsand present day Section 1228 allowed licensed operator Ham voice station hand microphone person wished speak transmit voice via radio prohibited other mode emission such Morse codes on-off signals tones sent anyone other licensed operator impact RC flier Ham operator permitted hand RC control box anyone elseeven own son friendfor steering plane rule still effect today FCC Violations1949 second 1949 letter FCC cited new amateur ra dio violations letter sent AMA directly charged permitting certain unlicensed persons participating 18th National AMA Meet Naval Air Station Olathe KS engage portable operation amateur station W3NPS violation Section 1228 Commissions rules two-page reply FCC must have effective because let offthis time Its possible took considera tion fact Rudder Bug won RC event year doubt Although viewpoint RC modeler some FCC-cited violations might seem like peccadilloes prov able infringements rules effect amateur two-way communication nonvoice signals clearly deci sively illustrated certain FCC rules Ham operation simply incom patible Radio Control modeler practice FCC IMrZT DE DK1n5 recent conference Weahington office Federal C nicatione Ciaioc brought out fact FCC Ie genuinely terested solving unl4ue problem brought about advent radio control flying Urge scale Attending rpreaentlng Academy Dr Qood Chairmen Radio Control Cmaitte CO Wright AMA President Willie C Drown firet Free ideat Academy end Headquartere staff mabere ooweinua Opinion foflowing conference signif icant forward etep usda AMA effort obtain lees strin gent requirements obtaining FCC Uoeue radio control flying leading op conference wee letter received fron Con iniesion calling ettention nuer aeqlem nonconforndty regulaticca wMch observed end reported F C C off ciala attending Rational Meet Olatha diacuesing letter waa specifically requested notice given AMA einbere ell radio operation non-ailitary governmental nature includ radio control flying Ie sub3eat FCC control perti nent regulatiorm must obeyed Whle thie euheot miga well point out Academy hopes obtain relaxation requirement us aay fly radio control oon sense dictate obeying law FCC ot reasonably inpected cooperate us pereiet cooperating witi Thus November 1948 Issue Model Aviation reported AMA FCC held discussions Olathe violations upshot meeting new FCC regulations would required because RC operation specifically covered existing FCC regulations Obviously basic conflict tween FCC AMA viewpoints much RC modeler should reason ably required know apparent FCC philosophy modeler clever enough build tame RC model ought have no trouble passing exami nations obtain Ham license AMA philosophy different same clever modeler ought able build use simple low-powered trans mitter receiver RC having learn skills required communications-oriented radio amateur negotiations between FCC AMA during formative years regulating RC frequencies battle lines drawn around fundamental difference viewFEDERAL COMMUNICATIONS COMM ISSION WASHINGTON 25 DC Septenber 16 1949 TO TUE SECRETARY reply refer 8032 Mr Walter Good W3NPS 9123 Eton Road Silver Spring Maryland Dear Sir Commission has received information its Engineer Charge Kansas City Lljasouri soveral occasions during period July 25 July 30 1949 permitted certain unlicensed persons participating 113th National Academy Llodel Aeronautics Lleet Naval Air Station Olathe Kansas engage portable operation enateur station violation Section 318 Communications Act 1934 amended apd Section 1228 Commissions Rules requested submit ion explanation may have youq matter tfr After Nats 1949 FCC threatened revoke Walt Goods Ham radio license allow ing unlicensed persons operate amateur station three-page reply Walt pre vented happening close call OK FCC allow unlicensed person talk radio station OK allow fly airplane May 1989 91 Radio Control R C enthusiasts have long wanted License-Free band its now equipment VERNON C MACNAIB quarter century has illegal operate radio transmitter license granted Federal Bureau currently FCC Federal Connunicalions Commission law modified June 1949 allow layman Mr John Q Public obtain license operate radio transmitter necessity being examined determine technical bnowledge radio ecen bnowing character International Morse Code Citicens Band plain citicens modrl airplane builders fliers opened June first course ceclaiss definite restrictions because transmis sions must interfere already established licensrd sercicco excerpted follows fr " Regulations governir. . As reported Model Airplane News 1950 Radio Control now Vernon Mac Nabb produced first examination-free sets operation 465 MHz frequency required type-approval tests FCC lab no home-built sets allowed operate Treasslttar aaeptetIs .ttoaatahad R5t, battacta t rlshi point second AMA/FCC meeting1948 Within two weeks after 1948 FCC vio lations letter AMA President-elect C 0 Wright visited Washington DC joined AMA meeting FCC discuss letter Attending AMA Willis Brown first AMA president active Ham Russ Nichols Walt Good chairman AMA RC Com mittee As reported AMA Model Aviation November 30 1948 recent conference Washington office FCC re vealed fact FCC genuinely terested solving unique problems brought about advent Radio Con trol flying large scale positive FCC action resulted AMA/FCC meeting June 1 1949 FCC established first Citizens Radio Service channel RC regulation specified RC flier may use frequency 465 MHz simple Citizen Band type license 465 MHz transmitter must manufactured item type ap proved FCC laboratoryno homebuilt units allowed represented good start FCC recognition modelers need examfree RC operation Some manufacturers thought 465 MHz frequency would too difficult ap ply RC because considered too high radio frequency available technology example vacuum tubes market sufficient quality used receiver small tube six-volt heater-type cath ode drew 300 mAh needed heavy battery give adequate flight life Ive told Nate Rambo used Farmpack brand battery intended radios farm achieve flight time de sired Vernon MacNabb Citizen-Ship Ra dio Corporation bolstered thorough knowledge radio technology compo nents persuaded Idea company Indi anapolis tackle transmitter re ceiver design George Fathauer engineered design help partners Sam Dick Goldstein project took better part year although much time spent FCC laboratories type approval tests made transmitter first rejected FCC because frequency drifted out toler ance temperatures below freezing After problem corrected transmitter returned FCCwhere remained such long time Mac Nabb urged Indiana senator Homer Capehart intervene Capeharts inquir ies disclosed transmitter passed tests paperwork hadnt completed approval certificate arrived three days later just time Gene Foxworthy fly Citizenship 465 MHz gear 1950 RC Natsand win MacNabb still has first RC license 465 MHz issued FCC June 26th 1950 transmitter receiver sold $3995 inexpensive con verted 1988 dollars todays market $3995 price tag would translate over $300 Through recent contacts some pioneering names early years Radio Control learned MacNabb day lives Pompano Beach FL plays golf three times week still flies little RCat 85 years age told paid Idea Company sum $500 total 465 MHz development concept tested production design Gene Foxworthy wife Martha re tired West Virginia still active RC talk weekly Ham ra dios Gene designed first mechanical parts MacNabb gear well doing test flying Goldstein brothers earned PhD physics theyre both professors astronomy University Vir ginia other Cnlifornia Obviously high-powered devel opment team Still FCC RC violations1951 Andrews Field near Washington DC 1951 FCC again alleged improper us age amateur frequency RC again issued warning letters happened CD RC event violation cited spent consider able time conversing FCC inspec torpartly divert him shutting down event before finished flying Al though ploy worked didnt prevent letter reprimand came through later stating RC opera tor must have Ham license However FCC stopped short taking license away thank goodness Participants 1951 Nats RC event came up creative roundabout solu tion operator licensing problem lo cal Ham operated unlicensed RC transmitters holding controls hand pushing buttons re sponse voice commands pilot feasible way completing RC event satisfying local FCC spector hardly satisfactory modelers viewpoint Up time except re cently approved 465 MHz gear Ham frequencies available RC use As abundanfly clear cited examples amateur frequencies still re quired Ham operator license spite awkwardness conform ing Ham operator rules owe much thanks Ham community its contri butions pioneering early RC planes electronics efforts made possi ble non-Ham experimenters join advancing tide development RC Air craft Ross Hull Byron Goodman Clinton DeSoto others ARRL Head quarters staff deserve mention Turning operator question newly acquired 465 MHz RC channel no firm guidelines set forth owner 465 MHz gear al lowable operator controls May owner hand transmitter friend try controls Since Citizens Radio Ser vice rules clear point FCC modified request AMA shortly after 465 MHz came un Continued page 198 92 Model Aviation England past three years 61 49 both suitable model also believe solid 45 Royal OS suit ably de-tuned would plenty power current setup Merco 6155 285 venturi SST silencer 10 holes open no pressure Taffinders 5% nitro PA fuel 114 x 6 Bolly three-blade prop engine has two 020 head gaskets added further soften four-cycle/twocycle break combination gets through pattern using just 3% oz fuel Lines 70 ft 018 cable model weighs 64 oz current trim finish see Sig dopenitrate clear base followed butyrate colorover silkspan wing 56-oz Sig glass cloth epoxy everywhere else am com pletely convinced glass cloth epoxy way go speed strength fuel-proofing stability finish As far can tell light lighter tra ditional dope-and-paper finish have very good results using Loctite Finishing Epoxy cloth stuff sands like chalk leaves very little material plane use dope colors nitrate bonding coat must first applied over epoxy butyrate wont adhere directly epoxy very well usually spray two coats nitrate clear over sanded epoxy-glass surface sand lightly spray filler coat talc nitrate After wet-sanded 400-grit paper spray colors last thought build model again would add another inch inch-and-a-half tail moment length would increase elevators groove leverage would also look scalelike may wish incorpor ate change own T-60 II Fly safe fly quiet contact Don McClave 221 NW 2nd Ave Suite 300 Portland OR 92709 find out can join PAMPA association model Stunt fliers enthusiasts responding advertisers mention read about ModelAviation Frequency Battle/Good Continued page 92 der CRS umbrella Under new regu lation persons other owner would allowed operate RC transmitter owners permission fore stalled possible repetition mis understandings concerning piloting occurred modelers using ama teur radio frequencies frequency home-built RC gear 1949-1952 Gratified though 1949 have 465 MHz frequency ap proved RC use some us felt strongly still worthwhile pursue fre quency allocation simple home-built gear almost three years before FCC handed us victory second fa vorable ruling concerning RC frequency us age permitting home-built gear dispens ing requirement examina tion story achieved C/LNewR/C IHANGERJCATALOG Kits OR Plans I Innovative InexpensiveI Quick & Easy Build rnttttNrrr Ut QUICK & LIVELY SPORT RIPLASIE GREAT 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knowledge FCC commissioner hold Ham license Most appointees politically affiliated connected radio broadcast industry both As side note Ive just read QST Amateur Radio Journal January 1988 Sterling WlAE remains active Ham home Maine today five Hams got licenses 1912 still active today After carefully examining planes RC gear listening report AMAs flight test program 27255 MHz Sterling responded one-page sum mary proposal pushing FCC staff response posi tive believe reasonable plan maybe restrictive neces SUPER DELUXE PRE-BUILT KITR 1 Carbon Fiber reinforced Epoxy Glass Fuselage• 2 FACTORY SHEETED Carbon Fiber reinforced Ultralight Honeycomb Plug-in Wingrr 3 FACTORY SHEETED adjustable 8 removable stab 4 Tn conventional retract 5 Pre-cut firewallOnly AVAILABLE IN BASIC KIT ONLY $1Length-6067$450 Carbon Fiber Reinforced Fuselage Wing Area- 700 sq Latest Japanese Pattern Design n byWegi 775 850 bs Top Japanese Pilot able FAI AMAEttg ye 0cc Please add $15 shippingPATTERN TEK 1408298 0311 will happy pass along favorable recommendations Shortly thereafter AMA received preliminary draft rule-making Docket #10086 modified clude 27255 MHz frequency RC course AMA commented favorably Simple RC rules arrive1952 Novem ber 1951 final proposal rule-making Docket #10086 appeared amend ment Part 19 Rules Citizens Ra dio Service included AMA plan adopting 27255 MHz frequency RC Since no objections received FCC regulation became official March 24 1952 long struggle AMA finally won approval first homebuilt RC frequency following regulations applied new Class C stations 1 Frequency27255 MHz crystal control assure accuracy 2 Powerfive watts maximum 3 Emissionson/off carrier tone mod ulation 4 Type approval required crystal-controlled transmitters Thus homebuilt gear OK 5 license simple FCC Form 505 flier sends nearest FCC fice No exams required After five years effort part AMA FCC March 24 1952 great day indeed About month after 27255 MHz fre quency made available received letter FCC Commissioner Sterling enclosed clipping Washington Evening Star newspaper about Reginald Denny well-known movie star produced RC target drones US military during WW II Denny now proposing use radio equipment RC model fliers According clip ping Denny approached FCC .. turned down cold Exactly never found out note attached clipping FCC responding advertisers mention read about Model Aviation 200 Model Aviation ZAP UNIVERSITY COLLEGE OF GLUE KNOWLEDGE ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX AH Designs47 AMA Membership65 Academy Aviation R&D10 Ace Radio Control9 Aerodrome Models188 Aerospace Composite Prod43 Airtronics6-7 AI-tec Su-pr-Line Prod180 Altech Marketing179 181 183 American Jr Aircraft Co22 American Sailplane Des66 Astro Flight15 Authorized RC Service57 B&P Associates47 Quay Barber Models170 Berkeley Trading Co178 Marty Berr156 199 Blue Ridge Mach & Tools171 Blue Sky Enterprises169 Bolar Heli Research173 Dave Brown Products41 Byron Originals95 104 Campbell Tools Co173 Campbells Custom Kits166 Circus Hobbies186-188 Cleveland Model Supply16 Colorado Model Products8 Composite Aircraft Eng49 CompuServe175 Control Systems Labs161 Coverite1 63 Cox Hobbies101 Crenshaw Aero176 Culpepper Models Inc49 DGA Designs67 D&R Aircraft Mfg156 Davey Systems Corp157 Tom Dixon190 Dodgson Designs166 Doylejet171 Du-Bro Products Inc38 55 198 Elden-Ken Electronics197 FAI Model Supply189 FHS Supply Inc5 Fiberglass Master53 Fiorenze Hobby Center173 First US RC Flight School197 Flights Fancy Aeromodel174 Florlo Flyer177 Flyline Models197 Fourmost Products51 Fox Mfg Co162 Fults Dual Struts22 Futaba Corp America21 204 G&A Products51 GM Precision Products66 Gas Model Products189 Gator RC Products64 Carl Goldberg Models96 203 Gorham Model Products12 Paul K Guillow Inc174 Hi Performance Sailplanes173 High Performance Models55 High Sky67 Hobby Barn154-155 Hobby Dynamics111 114 Hobby Horn18 Hobby Lobby International17 Hobby Shirts & Hats197 Hobby Woods57 MS 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Coy 2&3 819 Sid Morgan Plans182 Walt Moucha Models16 Mutchlers Hobbies164-165 NF Video Library42 NEPRO176 Nayco Co20 North Products169 Northeast Aerodynamics4 PacerTech12182191200 Paper Airplanes Intl172 Parrish Aircraft199 Pattern Tek200 John Peck Leisure Prod176 Pelican Enterprises198 Penn Valley Hobby Center169 Performance Hobbies176 Performance Products Ultd190 Perkins Avionics41 Phillips Aircraft Co182 Pica Products10 Planes & Things170 Polks Hobby Pot OGold169 Progress Mfg Co177 Pro-Tune Corp168 RB Bunch57 RC Buyers Guide22 RC Extras190 RJL Industries 66 Ragan/Barker Group47 Red Max Fuel5 Reynolds Jewelry181 Robart39 Robbe Model Sport11 Roun Tuit ..196 SAC66 SR Batteries153 Safety Plus16 53 Satellite City13 Scale Model Research171 Scale Plans & Photo Ser169 Sermos RC Snap Connectors64 Shamrock Competition Imports 9 Sheldons Hobby Shop20 Sig Mfg Co4 109 191 Skyline Hobby Mfg. Bob Smith Industries4 49 Square Cut Tools51 Stangel Enterprises198 Sullivan Iroducts102-103 Sunshine Hobbies67 Superior Aircraft174 Swanson Assoc20 Tatone Products Co178 Tidewater Hobby Enterprises161 Toledo RC Exposition171 Top Flite Models Inc113 Tower Hobbies192-195 Trader Jacks Buy Sell55 Tru-Turn189 VL Products67 Vinylwrite Custom Lettering64 WE Technical Services200 Williams Brothers53 Windsor Propeller Co43 Wing Mfg Co178 World EnginesCover 4 Nick Ziroli Models196 ZZ Enterprises57 Commissioner Sterling wrote Dr Good has fellow Denny Thats what call first-rate commis sioner modelers owe Sterling great debt successful outcome First Battle encouraging 1952 ac quired two RC channels 465 MHz 27255 MHz well simple no-exam permits just what wanted beginning EAA/Wischers Continued page 108 temperatures days Besides water demand high two survi val items heat humiditydeli ciously top-heavy soft serve cones May 1989 201