Recen t changes amateur radio regulations can put ham license within easy reach almost anyone RC fliers have taken advantage new licensing regulations thinking about Discussions club meetings fly-ins have convinced new prospective hams have clear understanding rules practices relating remote control model craft Federal Communications Commission terminology via amateur radio six-meter old-timers active other phases ham radio aware newer types non-RC activities six-meter band Club officers contest direct ors have responsibility frequency control compliance AMA Safety Code Radio Control Utilization Plan seem singularly unin formed what con stitutes legal six-meter oper ation article represents effort part change First few definitions Part 97 subpart FCC regulations defines amateur service radio communication service purpose self-training intercommunication technical investigations carried out amateurs duly authorized persons interested radio technique solely personal aim pecuniary interest An amateur operator defined person holding written authorization control operator amateur radio station written authorization amateur license amateur license actually has two partsan operators license station license FCC assigns call sign amateur station five classes operator licenses different classes licenses convey different operating privileges require demonstration different skill levels no-code license February 1991 FCC eliminated Morse code test examination Technician class amateur radio license Technician class license may now obtained simply passing 55-question multiple-choice written test amateur regulations amateur practices basic radio communications theory Technician license conveys full amateur privileges amateur frequencies above 30 MHz including six-meter band Amateur license exams conducted FCC-authorized volunteer examiners Check local ham club obtain exam schedule area American Radio Relay League ARRL 225 Main St Newington CT 06111 publishes complete study materials Technician license can put contact nearest ARRL-affiliated ham club clubs conduct licensing classes ARRL material contains need know exam simply isnt tough spend some time preparing Only simplest math required Regulations What RC privileges does FCC extend Technician licensee specific reference RC amateur reg-ulations contained subpart C regulations 972 15 Remote control model craft An amateur station trans mitting signals model craft may operated follows station iden tification procedure required transmissions directed model craft provided label indicating station call sign station licensees name address affixed station transmitter b control signals considered codes ciphers intended obscure meaning com munication c transmitter power must exceed 1 W Section excuses RC station re quirement ama teur station must period ically transmit its call sign via voice Morse code other authorized type emission Section b has regulations prohibit ham use codes ciphers regulations specifically define model craft believe FCC would look kindly use ham radio control full-scale airplane automobile Another regulation interest 979 states part license document photocopy thereof must personal possession licensee times person control operator station cited regulations should lay rest some myths concerning just what constitutes legal use amateur frequencies RC Part 4 AMA Radio Control Utilization Plan requires AMA event officials enforce Amateur Radio Operator licensing requirements sanctioned events experience seldom done usual excuse access Call Book February 1995 35 officials have no way determine licensed Regulation 979 plainly states no can legally operate amateur radio station unless has license personal possession Period Event officials should also verify transmitter labeling requirements 97215 met Violation of regulations can result criminal civil penalties Admittedly FCC enforcement agents unlikely visit fly-ins However FCC may well become involved should unfortunate incident occur Furthermore believe use amateur RC equipment contrary FCC regulations constitutes violation AMA safety code suspect may also negate some primary liability coverage provided homeowners umbrella policies have told event officials should know better its legal anyone fly six meters long licensed amateur turns transmitter off definitely no specific authorization regulations allow anyone licensed amateur operate hamband RC transmitter Rule 97115 does permit unlicensed persons under certain conditions participate amateur radio communications under immediate supervision licensed control operator However FCC issued ruling FCC 80-634 dated November 6 1980 97115 does apply RC operations no circumstances under unlicensed person may operate RC transmitter operating amateur frequencies Part 97 has completely rewritten since ruling issued language interest remains essentially unchanged Therefore ruling still effect has force law An unlicensed person cannot legally touch controls RC transmitter transmitting signals amateur frequencies As licensed amateur cannot hand transmitter unlicensed person purposes instruction demonstration buddy-box system transmits ham frequencies used both users must licensed amateurs thanks Technical Director Bob Underwood very kindly dug copy FCC ruling out voluminous files Frequencies Note no mention 97215 specific frequencies word about six meters 50 MHz 53 MHz other magic numbers come mind think about ham radio RC fact no specific frequencies channels designated FCC RC use no exclusive RC channels ham bands Regulations contained subpart D part 97 identify types radio frequency emissions may used various frequencies assigned amateur radio service regulations effectively prohibit types emissions used RC equipment frequencies below 501 MHz still leaves us quite bit room Todays radio technology makes RC control practical amateur bands 6 meters 2 meters 125 meters 70 centimeters 33 centimeters 23 centimeters Thats 1268 MHz spectrum space 20 kHz spacing room 6340 RC channels legal far FCC concerned course channels use amateurs purposes unrelated RC still plenty room available need Six-meter practices Le galities aside am aware RC activity using ham band other six-meter band sixmeter band includes frequencies between 50 54 MHz Ten RC channels eight two-color frequencies common use ten channels between 50800 50980 MHz channels spaced 20 kHz apart have assigned AMA RCMA channel numbers 00 09 Because channel spacing same now used 72 MHz use narrow-band receivers narrow-band formerly gold-stickered transmitters required field identification system same used 72 MHz except black rather red wind streamer used additional frequencies 53100 53200 53300 0 MHz Since frequencies 100 kHz apart narrow-band equipment required frequencies have assigned channel numbers identified field two-color wind streamer system top streamer black indicating use amateur frequency color second streamer indicates frequency See AMA Membership Manual details channel-marking systems other information AMA Radio Control Utilization Plan frequencies channels may used licensed amateurs control aircraft surface models History historical reasons present day six-meter frequency conventions immediate post-WW II period RC flying done hams no frequencies assigned FCC RC use anyone else very little manufactured RC equipment available hams built own FCC regulations technology available time made six meters principal band choice particular frequency ham used usually dictated whatever war surplus crystal could find junk box February 1995 37 Dark Yellow Orange Black White Silver Perfect Paint high quality part fuel proof paint combines convenience superb results Perfect Paint will cover dopes epoxies metals fiberglass plastic smooth hard mar resis tant finish will crack chip NOW AVAILABLE p~ucheveronihobbyiproductsN PO Box 2480 Sandusky Ohio 44870 Phone & Fax 419-797-2208 video enables beginner LU cover model th 25mb professional results Easy follow presentation Film Video Pioductions 512 847-1551 512 847-9104 $2995 -4- 300 5 & H 20 Summit Dr west wimberley TX 78676 little standardization frequencies few manufacturers Frequency coordination among fliers really problem since RC pilots very few quite far between gas tube super-regenerative receivers day did have sufticient selectivity allow simultaneous flights same field regardless frequency As state art progressed receivers became selective manufactured equipment became available RC fliers chose frequencies near 53 MHz upper end band avoid interference amateur stations engaged point-to-point communications lower end band communications stations avoided upper end band order avoid interference TV channel 2 54-60 MHz early television sets lacked selectivity advent RC superheterodyne receivers possible conduct RC flight time eventually hams AMA manufacturers agreed standardize eight 53 MHz frequencies simplify frequency coordination among fliers 100 kHz spacing appropriate capabilities early superhets 50 MHz channels came being because changes way amateurs use six-meter band addition traditional point-to-point communications via voice Morse code variety communication modes have come use Amateur repeater stations now widely used repeater station relays rebroadcasts signals other stations Repeater station antennas normally located mountaintops tall buildings towers repeaters may have effective communications range 100 miles Two amateurs six meters attempting communicate point-to-point using lowpowered hand-held mobile radios simple antennas would probably have communications range ten miles average terrain relaying signals through repeater range would dramatically extended Repeaters usually owned maintained ham clubs operate fixed frequencies FCC has authorized repeater stations operate frequencies between 51 54MHz FCC regulations micromanage ham bands Over years amateur community has demonstrated its ability keep its own house order FCC has wisely refrained creating lot rules does have resources enforce largely left up amateurs decide among themselves type activities conducted portions various ham bands no means simple task some central coordinating agency required ARRL has undertaken job has created band plans various ham bands ARRL amateur radio AMA model aviation two organizations arc similarly organized principal spokesman hobby provide similar services members except ARRL liability insurance business share somewhat similar problems amateur ARRL member ARRL member pleased decisions made ARRL no matter democratic decision-making process Sound familiar ARRL band plans have force law ARRL has no enforcement authority its band plans essentially gentlemens agreements However blatant disregard established operating conventions such specified band plans may well bring citation FCC under 97101 requires operations conducted accordance good engineering good amateur practice Deliberate malicious interference radio communication signal also prohibited 97101 Despite potential shortcomings band plans almost universally observed amateurs Newcomers may have never heard band plans quickly discover no talk operate out band plan segments 38 Model Aviation 4COLORS Flame Red Deep Red Sky Blue Deep Blue Midnight Blue Bright Yellow Cub Yellow J Complete Line Precision Bench Top MetalworKIng quipment MANUAL & CNC LATHES S SSORIES LOCAL PARTS Using 53 MHz 53 MHz RC frequencies included older ARRL six-meter band plans However FCC authorized repeater operations frequencies ARRL decided would best interests majority amateurs move preferred location RC operations 50800 MHz band segment change coordinated AMA occurred less simultaneously phased changes 72 MHz did away old two-color 72 MHz frequencies eventually resulted todays 50-channel environment 53 MHz channels no longer ARRL band plan However still included AMA Radio Control Utilization Plan RCUP still used ham fliers present amateur communication via repeater stations conducted amateur two-meter band 144-148 Mhz Almost location United States within communications range least two-meter repeater live coast very southeastern corner North Carolina can contact least dozen two-meter repeaters low-powered mobile radio no six-meter repeaters within communications range total 50 active six-meter repeaters southeastern states GA KY MS NC SC TN VA WV Thirteen repeaters transmit frequencies 10 kHz away 53 MHz RC frequencies can supply list repeater frequencies locations states Send businesssize SASE address end article eight states 13 areas 53 MHz frequencies may subject repeater interference depending capabilities RC receiver used location power level repeater very few cases areas may overlap two three frequencies might possibly affected states no problem finding 53 MHz frequency free interference similar situation prevails parts country southeast repeaters transmit 53 MHz frequencies output frequency listen 52 MHz frequencies input frequency may true regions RC users must avoid both input output frequencies repeaters Operation near input frequencies may result interference fixed mobile stations transmitting repeater Transmissions RC transmitter may interfere jam repeater very impolite will make repeater users very angry may result citation FCC under 97101 prevent repeaters interfering other coordinated FCC-recognized regional volunteer amateur organizations groups reliable source up-to-date information about repeater operations area Ask local radio club ARRL contact repeater coordinator area plan attend fly-in contest away home dont forget check repeater situation destination Six-meter repeaters pose little no problem RC operation 53 MHz frequencies arent very since operate fixed frequencies easy avoid careful using 53 MHz fields located near television transmitting sites TV channel 2 54-60 MHz Most TV stations have very high levels effective radiated power interference real possibility Using channels 00-09 Ideally 508 MHz channels channels 00-09 will free interference amateur stations engaged point-to-point communications However equipment used point-topoint communication fully frequency agile entirely possible operator engaged communications stray area above 508 MHz Propagation six-meter band normally line-of-sight However ionospheric conditions will occasionally support brief periods long distance skip TEE STRIPS SELF ADHESIVE SANDING STRIP FOR USE WITH ALL /A14 TEE-BAR PRODUCTS 3 x 5 yds continuous roll Cut length Adheres surfaces Clean neat Available assorted grits No messy glue drying time Unroll length cut & apply Instantly ready sanding No132G 100180 280 Garnet $595 25 Load Free Silicon Carbide $660 Add 20% postage Send 500 catalog k Applied Design Co P 0 Box 3384 Torrance CA 90510 2 volt ci motor pictured out Fox 74 motor prrn power reliability have expect Fox motors BUY SMART BUY AMERICAN BUY FOX VV FOX FOX MANUFACTURING COMPANY 5305 TOWSON AVENUE FORT SMITH ARKANSAS 72901 PHONE 501 646-1656 501 646-1757 February 1995 39 LDM Industries Ball Bearing Servo Conversion Kits can upgrade standard servos ball bearing servos just minutes less cost 1 ball bearingservoyou can upgrade4 standard servos Futaba Kit Fits S28 538 S48 5128 S138 5148 Cirrus CS28 CS128 CS238 CS248 servos #9600 4 pack 95 #96101 pack 5 Aliftonics Kit Fits 94102 standard servo #9700 4 pack$2995 #9710 1 pack$795 Univeisal Kit Fits]R501 &507Focus HS300 RCDO5 Tower TE-SI Hobbico CS-51 Ace 330 19800 4 pack$2095 #98101 pack$595 Other Great Products LDM Part #8000 STRONGBOX$795 Part #8100 STRONGBOX II$1195 Part #9500 NO-HEAT Trim Solvent$695 1 Select correct propeller size following engine manufacturers recommendation 2 Before using plastic props remove flash along edges propeller scraping pocket knife 3 Install propeller using correct nut washer airfoil side forward securely tighten wrench Recheck after flight 4 Only use chicken stick electric starter start engine make adjust ments behind engine 5 Keep spectators least 20 feet away out path rotating propeller order send check money order including $300 S & H LDI Industries Inc PO Box 292396 Dept 2 Tampa FL 336872396 Phone 8139914277 Fax 813991-4810 Florida residents add 61/2% sales tax VISA and MASTER CARD Accepted @1993 LDM Industries Inc 6 Wear safety glasses hand protection operating model engines DO NOT permit objects touch turning pro peller Remain clear propeller arc 7 To stop engine cut off fuel supply accordance manufacturers instruc tions case DO NOT stop pro peller hand other object 8 Inspect propeller after flight Dis card propeller has nicks scratches other visible defect DO NOT repair alter way modify propeller 9 Propeller tips should painted order increase visibility turning rotating propeller can cause serious personal injury FOLLOW THESE INSTRUCTIONS CAREFULLY Windsor Propeller Co / 3219 Monier Circle / Rancho Cordova CA / 95742 * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $299 Cat No 202 Air Cleaner Fine $299 Replacement Inserts Cat No 104 PkI2 Inserts Coarse $239 Cat No 204 Pk/2 Inserts Fine 239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc POBox3756CenrerLineMichigan4lOl5 lAdd $250 shipping igan residents add 4% sales taxI communications band openings occur number stations air increases dramatically time time amateur organizations sponsor operating contests include six-meter band object usually make contact stations areas possible During band openings contests band occupancy high band tends fill up bottom Stations move higher frequency find clear channel entirely possible heat competition such niceties band plan RC channels may forgotten ignored unlikely will ever experience interference distant station due skip propagation local station working skip legal limit 1500 watts peak envelope power another matter Understanding environment no guarantee will never experience interference other amateur activities six meters never have dont know anyone has some potential exists opinion of us black flag fliers less likely experience interference six meters 72 MHz However intend fly RC six meters essential understand band being used fellow amateurs area local ham club good source information QST monthly magazine published ARRL will keep up-todate FCC rules band plans contests operating practices may have some effect RC operations intend avail yourself benefits ham radio other RC urge join participate both local ham club ARRL much less apt experience accidental interference local hams know activities Offer conduct program RC meetings ARRL has some control over destiny ham RC operations need voices within membership willing speak up NEW ONLY $2695 McS MODEL PLANE CADDY Fats aU single wiag planes body widths upto S 114 wing widths up aU landing gear conflgnrations Also available biwing style bodywidths up toS t/4 Siagh Wing$2695FREE BiWing$3195shipping handling SD cNEcK oft hioNEY ORDER AND SUIPHNG INFORMATION I~ MeS CADDYS PO nOX 185 RAEFORD NC 28376 40 Model Aviation 4I Eliminates wobble output shaft Reduces control response deadband Reduces chance flutter Improves control surface centering Allows use pull-pull cables Extends life servos PROPELLER SAFETY MESSAGE safety precautions designed enhance enjoyment model flying should part modelers routine both flying site workshop THE ULTIMATE RACK POR MELD CARRYING AND sTaRAun __________________PAT PBNDJ RC matters no substitute firsthand experience Try arrange use some type communications receiver covers six meters Most fairly inexpensive scanning receivers such sold Radio Shack include sixmeter band Typically FM receivers will copy repeaters other FM stations AM single-sideband digital stations will audible understandable Spend much time can listening various times day possible take receiver out field normal flying days listen listen youll learn ham radio Does ham license have potential increase enjoyment model aviation past fewer RC frequencies available non-hams exclusive channels available black flag fliers object considerable envy availability fifty 72 MHz channels has shortened wait pin model airports However some larger fly-ins six-meter users still enjoy slight advantage Free flight fliers often have look airplanes after successful flights ham free fighters equip models miniature radio beacons use simple direction-finding equipment facilitate recovery Ham radio has used transmit signals TV cameras carried model aircraft Experimenters advanced modelers may interested use ham radio telemetryreceiving data airspeed altitude rpm like models AMA technical team investigating interference potential RC operation occasioned FCC proposal NPRM 92-235 used amateur radio frequencies control aircraft used experiments Modeling-related communications can also important Most model airports have no telephone using hand-held radio local radio clubs two-meter L T-ON OWEN LESS HASSLE MORE FUN Dieselize Davis Diesel Its Awesome kHuo DAVIS MODeL PRODUCTS Devis Diesel Heads Over 100 models Irma 04936 cv Wadds largest preducer Medal Easel Fuek HOLIDAY SPECIAL rf $29951 1211III*%1iIM] Airborne Video Excitement Other Mobile Uses cameraTransmisier Range2000 feet Line sight Transmitter Size1250 x 1250 x 400 Weight5 ounce CameraSize181 2x 17345 x 980 Weight1 ounce Video 8OO2OODOS VISA A~A7D Order Yours Today Super Dou6er II Clipped Wing Version Designed Brad Shepherd wood Premium Quality Hand-Cut Kit Ku daeure Pee-Cut Machined Balsa & Lite Ply Pails Built Up nalsa Lite Ply Construction Two Sheets Full-Size Rolled Plans Extensive Hardware Package Pre-Bent Landing Gear Wire C Extremely aerobatic yet capable slow predictable flight Model Specifwavvons Wing Span 51 Inches wing Area 517 Sq Weight 4 3/4-5 1/4 lbs Recommended Radio Four Channel Recommended Engine 45-50 Four Stroke Spoil 40 Two Cycle Make Check Money Order out LINUK MODELS Add $450 S&H Mans Residents add\ / 5%Tax $425 LINCK MODELS Dept MA 141 Moulton Hill Road Monnon MA 01057 t413 267-9545 February 1995 41 4 50% Power Same Easy Starting No Glow Plugs Runs llvice Long Scale Sound PO Box 141 ord CT 06460 077-1670 complete cots/ag send selfaddressed 7S stamped #10 envelope & $3 credited te tot order MICRO-ELECTRIC ICRO-JET Ducted-Fan System Package Entire module weighs just 26 grams ounee thrust Flies models 6060 sq up 3 oz System Peetisge includes motor 3s 5OmAh Nid battery wiring harness charger pans complete Instructions build tan module MICROJETSJstm 1 flTWIN MICRO-JET System $2695 Plea acid 02 Se posaaaeandma id ernie repeater equipped autopatch ham can access telephone network call 911 will bring ambulance fire department need arises may simply want tell wife its great day flyinghold dinner until dark couple hams hand-held radios can simplify management long flight line parking area busy fly-in several on-the-air round tables meet regularly bit hangar flying via ham radio operate lower long-distance frequencies available Technician licensee some larger metropolitan areas will find nets operating local repeaters go RC flying originated ham bands hobbies RC flying ham radio will continue closely related Traditionally two hobbies have attracted same types individualstechnically inclined people driven experiment make things work radio equipment use today based technology developed amateurs likely next generation equipment will originate ham bands FCC under unrelenting pressure large powerful constituencies grant operating privileges increasing number users types radio equipment radio spectrum finite new user creates potential interference other users True clear channels no longer exist art RC modeling advancing giant steps flying heavy models speeds approach 200 mph magnificent Scale creations represent investments several thousand dollars several years work controlled best todays narrowband radios models can brought down spurious signal improperly maintained two-way radio passing car neighboring youngster new ARF discount toy store mixup pins frequency control board UNIQUEFree PLANS KITSCatalog Sd At4ea 1528 S KOELLER BOX 301W OSEKOSH WI 54951 uuv FOR THE MODELER! FREE /C14551 M304 6624538 CATALOG Choose Fmni Lage Selection OtShop Model & much morel tVIDEO TAPES ALSO 6.1 SAVE YOUR FIELD SNUF-LER muffler isa low cost easy install lightweight sound reducing muffler no performance penalty answer AMA muffler rule suggestions saving flying fields Meets AMA muffler rule suggestions SNUF-FLERM 3 10 decibels quieter stock muffler MUFFLER No power loss possible 300-500 RPM increase Pnted Improves engine idle s better fuel economy Easily attached 25-108 stock mufflers Heat corrosion resistant Black E coat finish No special adapters required weighs 35 oza Fits ASP BRAT ENYA FOX HP IRVINE K & B OS MAX ROYAL VS SUPER TIGRE mufflers available hobby shop ORDER DIRECT tor immediate shipment Check MO. Vioa MC COD SEND 250 STAMP accepted Add $250 UPS $200 COD 6% sales tax FOR ADDITIONAL INFO tsr CsliI residentAND JTEC CATALOG February 1995 43 8-BALL SPECIAL Giant Sport its Best premium quality wood & foam kit containing hand cut balsa ply parts f/ cowl aluminum landing gear canopy foam wing cores rolled plans Extremely aerobatic yet capable slow solid flight Span 85 Weight 175 lbs1 Intro Price $19995Area 1367 Length 63 S26955Power G38/042 similar Reids Quality Model Products 16 Main Street Phelps New York 14532 Catalog SLOO 3155483779 American Made 2 $2495 CAT NO BOO Some known basic technologies can provide radios vastly improved resistance interference What needed reduction practice demonstration testing actual operating environments Radio amateurs have historically demonstrated ability type thing FCC regulations encourage type experimentation ham bands promising long-term technology seems spread spectrum allows stations use same frequencies simultaneously mutual interference type emission already authorized some ham bands Short-term solutions may involve such well-known concepts frequency diversity present frequency assignments narrow-band radios result leadership dedication AMA AMA can should take leadership role solving interference problem through technical advance AMA can set goals coordinate activities experimenters provide liaison ARRL RCMA FCC other concerned parties Perhaps AMA can provide test equipment some funding sample demonstration hardware Spectrum pollution going get worse time marches going have radios need survive time action now can expect hams part Happy landings 73 Thanks Warren Plohr W8IAH made important contributions article Technical review Bob Underwood Robert Johnson AA4L Box 4099 Calabash NC 28467 oz 25 $1 O5IYd 2 oz 38 14 oz 44 $135IYd 3 oz 50 14 oz 50 $15OIYd 32 oz 50 FIBERGL4SS SUPER SALE Limited Quantities Prices Plain Weave Epoxy Finish Minimum Purchase 10 Yds $1 6OIYd $200/Yd $2OOIYd Satin Weave 316 oz 38 $25OIYd Bolt prices $075 $15OIYd CLUBS MANUFACIURERS & DEALERS WELCOME osite Structures Technology _____________________ P 0 Box 642 Dept JI Tehachapi CA 93581 Order Desk 1400438-1278 ' REPORT CARD ON HINGES After ten years everybody thinks schools out hinges Lets grade competition see needs classes EASY HINES- TM What look CA hinge Experience no can match SIGs 10 years development use HingeCorrect thickness achieve balance between strength durability flexibility ease assembly No holes slots weaken hinge Special surface treatment secure grip facing comes off hinge will come out Facing Thin easy insert hinge Treated C wicks across whole hinge wood Processed retard CA cure time correct mistake just surface bonds ALL surface bonds MATERIALS THAT REALLY WORK EVERY TIME FOR LONG liME Dont depend lucA depend SIG EASY HINGES first still best name CA hinges Hinges rather ordinary item critical life model Dont save buck hinges crash buy use SIG EASY HINGES confidence SIG Easy Hinges DB D GP B C F GB SH-710 Pkp 24- S29b Materials Total Thickness HingeThicknessAAAABAB TearStrengthAAAABAB A A F n A F n B fl4 F F D F F C4 D F Surface Treatment floknintinrj Stronnth Slots Holes Glue Action Wickina DelayedCureACCFFFF BC CCAverage Grade SIG MFG CO INC 401-7 So Front St Montezuma IA 50171 623-5154 February 1995 45 LIGHTING SYSTEMS THE ORIGINALS. Still Best RAM 01Adj Flash Nay Lights 9V NEW 94 span w/ wing light conn$2995 RAM 02Strobe Light 9V adjustable flash rate 1995 3995 RAM 03Landing Lights 48V receiver controlled RAM 04Mars Rotating Beacon 9V adjustable rate1995 RAM 05Marine Navigation Lights 9V non flashing1095 RAM 06Sky Lights 18 Light Set 72-9V best way fly night2495 RAM 14Big Airplane Navigation Lights 9V 168 span non flashing2495 RAM 16Econo Landing Lights 9V servo controlled brightest1995 RAM 23Real Strobe Light 3V brightest2995 RAM 65 T6 Lg Scale Lighting 72-9V Comb #s 04 14 & 16 100 span 5995 SEE YOUR DEALERS SEND STAMPED ENVELOPE FOR RAM iNFO if unavailabie iocaiiy send check money order fuli credit card info cost item plus $4 DO l$5 00 foreignl br immediate shipnent include fuli address br UPS Sorry no COD cRam 229C E Rollins Rd d Lake Beach IL 60073 ST F D D F D
Edition: Model Aviation - 1995/02
Page Numbers: 35, 37, 38, 39, 40, 41, 43, 45
Recen t changes amateur radio regulations can put ham license within easy reach almost anyone RC fliers have taken advantage new licensing regulations thinking about Discussions club meetings fly-ins have convinced new prospective hams have clear understanding rules practices relating remote control model craft Federal Communications Commission terminology via amateur radio six-meter old-timers active other phases ham radio aware newer types non-RC activities six-meter band Club officers contest direct ors have responsibility frequency control compliance AMA Safety Code Radio Control Utilization Plan seem singularly unin formed what con stitutes legal six-meter oper ation article represents effort part change First few definitions Part 97 subpart FCC regulations defines amateur service radio communication service purpose self-training intercommunication technical investigations carried out amateurs duly authorized persons interested radio technique solely personal aim pecuniary interest An amateur operator defined person holding written authorization control operator amateur radio station written authorization amateur license amateur license actually has two partsan operators license station license FCC assigns call sign amateur station five classes operator licenses different classes licenses convey different operating privileges require demonstration different skill levels no-code license February 1991 FCC eliminated Morse code test examination Technician class amateur radio license Technician class license may now obtained simply passing 55-question multiple-choice written test amateur regulations amateur practices basic radio communications theory Technician license conveys full amateur privileges amateur frequencies above 30 MHz including six-meter band Amateur license exams conducted FCC-authorized volunteer examiners Check local ham club obtain exam schedule area American Radio Relay League ARRL 225 Main St Newington CT 06111 publishes complete study materials Technician license can put contact nearest ARRL-affiliated ham club clubs conduct licensing classes ARRL material contains need know exam simply isnt tough spend some time preparing Only simplest math required Regulations What RC privileges does FCC extend Technician licensee specific reference RC amateur reg-ulations contained subpart C regulations 972 15 Remote control model craft An amateur station trans mitting signals model craft may operated follows station iden tification procedure required transmissions directed model craft provided label indicating station call sign station licensees name address affixed station transmitter b control signals considered codes ciphers intended obscure meaning com munication c transmitter power must exceed 1 W Section excuses RC station re quirement ama teur station must period ically transmit its call sign via voice Morse code other authorized type emission Section b has regulations prohibit ham use codes ciphers regulations specifically define model craft believe FCC would look kindly use ham radio control full-scale airplane automobile Another regulation interest 979 states part license document photocopy thereof must personal possession licensee times person control operator station cited regulations should lay rest some myths concerning just what constitutes legal use amateur frequencies RC Part 4 AMA Radio Control Utilization Plan requires AMA event officials enforce Amateur Radio Operator licensing requirements sanctioned events experience seldom done usual excuse access Call Book February 1995 35 officials have no way determine licensed Regulation 979 plainly states no can legally operate amateur radio station unless has license personal possession Period Event officials should also verify transmitter labeling requirements 97215 met Violation of regulations can result criminal civil penalties Admittedly FCC enforcement agents unlikely visit fly-ins However FCC may well become involved should unfortunate incident occur Furthermore believe use amateur RC equipment contrary FCC regulations constitutes violation AMA safety code suspect may also negate some primary liability coverage provided homeowners umbrella policies have told event officials should know better its legal anyone fly six meters long licensed amateur turns transmitter off definitely no specific authorization regulations allow anyone licensed amateur operate hamband RC transmitter Rule 97115 does permit unlicensed persons under certain conditions participate amateur radio communications under immediate supervision licensed control operator However FCC issued ruling FCC 80-634 dated November 6 1980 97115 does apply RC operations no circumstances under unlicensed person may operate RC transmitter operating amateur frequencies Part 97 has completely rewritten since ruling issued language interest remains essentially unchanged Therefore ruling still effect has force law An unlicensed person cannot legally touch controls RC transmitter transmitting signals amateur frequencies As licensed amateur cannot hand transmitter unlicensed person purposes instruction demonstration buddy-box system transmits ham frequencies used both users must licensed amateurs thanks Technical Director Bob Underwood very kindly dug copy FCC ruling out voluminous files Frequencies Note no mention 97215 specific frequencies word about six meters 50 MHz 53 MHz other magic numbers come mind think about ham radio RC fact no specific frequencies channels designated FCC RC use no exclusive RC channels ham bands Regulations contained subpart D part 97 identify types radio frequency emissions may used various frequencies assigned amateur radio service regulations effectively prohibit types emissions used RC equipment frequencies below 501 MHz still leaves us quite bit room Todays radio technology makes RC control practical amateur bands 6 meters 2 meters 125 meters 70 centimeters 33 centimeters 23 centimeters Thats 1268 MHz spectrum space 20 kHz spacing room 6340 RC channels legal far FCC concerned course channels use amateurs purposes unrelated RC still plenty room available need Six-meter practices Le galities aside am aware RC activity using ham band other six-meter band sixmeter band includes frequencies between 50 54 MHz Ten RC channels eight two-color frequencies common use ten channels between 50800 50980 MHz channels spaced 20 kHz apart have assigned AMA RCMA channel numbers 00 09 Because channel spacing same now used 72 MHz use narrow-band receivers narrow-band formerly gold-stickered transmitters required field identification system same used 72 MHz except black rather red wind streamer used additional frequencies 53100 53200 53300 0 MHz Since frequencies 100 kHz apart narrow-band equipment required frequencies have assigned channel numbers identified field two-color wind streamer system top streamer black indicating use amateur frequency color second streamer indicates frequency See AMA Membership Manual details channel-marking systems other information AMA Radio Control Utilization Plan frequencies channels may used licensed amateurs control aircraft surface models History historical reasons present day six-meter frequency conventions immediate post-WW II period RC flying done hams no frequencies assigned FCC RC use anyone else very little manufactured RC equipment available hams built own FCC regulations technology available time made six meters principal band choice particular frequency ham used usually dictated whatever war surplus crystal could find junk box February 1995 37 Dark Yellow Orange Black White Silver Perfect Paint high quality part fuel proof paint combines convenience superb results Perfect Paint will cover dopes epoxies metals fiberglass plastic smooth hard mar resis tant finish will crack chip NOW AVAILABLE p~ucheveronihobbyiproductsN PO Box 2480 Sandusky Ohio 44870 Phone & Fax 419-797-2208 video enables beginner LU cover model th 25mb professional results Easy follow presentation Film Video Pioductions 512 847-1551 512 847-9104 $2995 -4- 300 5 & H 20 Summit Dr west wimberley TX 78676 little standardization frequencies few manufacturers Frequency coordination among fliers really problem since RC pilots very few quite far between gas tube super-regenerative receivers day did have sufticient selectivity allow simultaneous flights same field regardless frequency As state art progressed receivers became selective manufactured equipment became available RC fliers chose frequencies near 53 MHz upper end band avoid interference amateur stations engaged point-to-point communications lower end band communications stations avoided upper end band order avoid interference TV channel 2 54-60 MHz early television sets lacked selectivity advent RC superheterodyne receivers possible conduct RC flight time eventually hams AMA manufacturers agreed standardize eight 53 MHz frequencies simplify frequency coordination among fliers 100 kHz spacing appropriate capabilities early superhets 50 MHz channels came being because changes way amateurs use six-meter band addition traditional point-to-point communications via voice Morse code variety communication modes have come use Amateur repeater stations now widely used repeater station relays rebroadcasts signals other stations Repeater station antennas normally located mountaintops tall buildings towers repeaters may have effective communications range 100 miles Two amateurs six meters attempting communicate point-to-point using lowpowered hand-held mobile radios simple antennas would probably have communications range ten miles average terrain relaying signals through repeater range would dramatically extended Repeaters usually owned maintained ham clubs operate fixed frequencies FCC has authorized repeater stations operate frequencies between 51 54MHz FCC regulations micromanage ham bands Over years amateur community has demonstrated its ability keep its own house order FCC has wisely refrained creating lot rules does have resources enforce largely left up amateurs decide among themselves type activities conducted portions various ham bands no means simple task some central coordinating agency required ARRL has undertaken job has created band plans various ham bands ARRL amateur radio AMA model aviation two organizations arc similarly organized principal spokesman hobby provide similar services members except ARRL liability insurance business share somewhat similar problems amateur ARRL member ARRL member pleased decisions made ARRL no matter democratic decision-making process Sound familiar ARRL band plans have force law ARRL has no enforcement authority its band plans essentially gentlemens agreements However blatant disregard established operating conventions such specified band plans may well bring citation FCC under 97101 requires operations conducted accordance good engineering good amateur practice Deliberate malicious interference radio communication signal also prohibited 97101 Despite potential shortcomings band plans almost universally observed amateurs Newcomers may have never heard band plans quickly discover no talk operate out band plan segments 38 Model Aviation 4COLORS Flame Red Deep Red Sky Blue Deep Blue Midnight Blue Bright Yellow Cub Yellow J Complete Line Precision Bench Top MetalworKIng quipment MANUAL & CNC LATHES S SSORIES LOCAL PARTS Using 53 MHz 53 MHz RC frequencies included older ARRL six-meter band plans However FCC authorized repeater operations frequencies ARRL decided would best interests majority amateurs move preferred location RC operations 50800 MHz band segment change coordinated AMA occurred less simultaneously phased changes 72 MHz did away old two-color 72 MHz frequencies eventually resulted todays 50-channel environment 53 MHz channels no longer ARRL band plan However still included AMA Radio Control Utilization Plan RCUP still used ham fliers present amateur communication via repeater stations conducted amateur two-meter band 144-148 Mhz Almost location United States within communications range least two-meter repeater live coast very southeastern corner North Carolina can contact least dozen two-meter repeaters low-powered mobile radio no six-meter repeaters within communications range total 50 active six-meter repeaters southeastern states GA KY MS NC SC TN VA WV Thirteen repeaters transmit frequencies 10 kHz away 53 MHz RC frequencies can supply list repeater frequencies locations states Send businesssize SASE address end article eight states 13 areas 53 MHz frequencies may subject repeater interference depending capabilities RC receiver used location power level repeater very few cases areas may overlap two three frequencies might possibly affected states no problem finding 53 MHz frequency free interference similar situation prevails parts country southeast repeaters transmit 53 MHz frequencies output frequency listen 52 MHz frequencies input frequency may true regions RC users must avoid both input output frequencies repeaters Operation near input frequencies may result interference fixed mobile stations transmitting repeater Transmissions RC transmitter may interfere jam repeater very impolite will make repeater users very angry may result citation FCC under 97101 prevent repeaters interfering other coordinated FCC-recognized regional volunteer amateur organizations groups reliable source up-to-date information about repeater operations area Ask local radio club ARRL contact repeater coordinator area plan attend fly-in contest away home dont forget check repeater situation destination Six-meter repeaters pose little no problem RC operation 53 MHz frequencies arent very since operate fixed frequencies easy avoid careful using 53 MHz fields located near television transmitting sites TV channel 2 54-60 MHz Most TV stations have very high levels effective radiated power interference real possibility Using channels 00-09 Ideally 508 MHz channels channels 00-09 will free interference amateur stations engaged point-to-point communications However equipment used point-topoint communication fully frequency agile entirely possible operator engaged communications stray area above 508 MHz Propagation six-meter band normally line-of-sight However ionospheric conditions will occasionally support brief periods long distance skip TEE STRIPS SELF ADHESIVE SANDING STRIP FOR USE WITH ALL /A14 TEE-BAR PRODUCTS 3 x 5 yds continuous roll Cut length Adheres surfaces Clean neat Available assorted grits No messy glue drying time Unroll length cut & apply Instantly ready sanding No132G 100180 280 Garnet $595 25 Load Free Silicon Carbide $660 Add 20% postage Send 500 catalog k Applied Design Co P 0 Box 3384 Torrance CA 90510 2 volt ci motor pictured out Fox 74 motor prrn power reliability have expect Fox motors BUY SMART BUY AMERICAN BUY FOX VV FOX FOX MANUFACTURING COMPANY 5305 TOWSON AVENUE FORT SMITH ARKANSAS 72901 PHONE 501 646-1656 501 646-1757 February 1995 39 LDM Industries Ball Bearing Servo Conversion Kits can upgrade standard servos ball bearing servos just minutes less cost 1 ball bearingservoyou can upgrade4 standard servos Futaba Kit Fits S28 538 S48 5128 S138 5148 Cirrus CS28 CS128 CS238 CS248 servos #9600 4 pack 95 #96101 pack 5 Aliftonics Kit Fits 94102 standard servo #9700 4 pack$2995 #9710 1 pack$795 Univeisal Kit Fits]R501 &507Focus HS300 RCDO5 Tower TE-SI Hobbico CS-51 Ace 330 19800 4 pack$2095 #98101 pack$595 Other Great Products LDM Part #8000 STRONGBOX$795 Part #8100 STRONGBOX II$1195 Part #9500 NO-HEAT Trim Solvent$695 1 Select correct propeller size following engine manufacturers recommendation 2 Before using plastic props remove flash along edges propeller scraping pocket knife 3 Install propeller using correct nut washer airfoil side forward securely tighten wrench Recheck after flight 4 Only use chicken stick electric starter start engine make adjust ments behind engine 5 Keep spectators least 20 feet away out path rotating propeller order send check money order including $300 S & H LDI Industries Inc PO Box 292396 Dept 2 Tampa FL 336872396 Phone 8139914277 Fax 813991-4810 Florida residents add 61/2% sales tax VISA and MASTER CARD Accepted @1993 LDM Industries Inc 6 Wear safety glasses hand protection operating model engines DO NOT permit objects touch turning pro peller Remain clear propeller arc 7 To stop engine cut off fuel supply accordance manufacturers instruc tions case DO NOT stop pro peller hand other object 8 Inspect propeller after flight Dis card propeller has nicks scratches other visible defect DO NOT repair alter way modify propeller 9 Propeller tips should painted order increase visibility turning rotating propeller can cause serious personal injury FOLLOW THESE INSTRUCTIONS CAREFULLY Windsor Propeller Co / 3219 Monier Circle / Rancho Cordova CA / 95742 * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $299 Cat No 202 Air Cleaner Fine $299 Replacement Inserts Cat No 104 PkI2 Inserts Coarse $239 Cat No 204 Pk/2 Inserts Fine 239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc POBox3756CenrerLineMichigan4lOl5 lAdd $250 shipping igan residents add 4% sales taxI communications band openings occur number stations air increases dramatically time time amateur organizations sponsor operating contests include six-meter band object usually make contact stations areas possible During band openings contests band occupancy high band tends fill up bottom Stations move higher frequency find clear channel entirely possible heat competition such niceties band plan RC channels may forgotten ignored unlikely will ever experience interference distant station due skip propagation local station working skip legal limit 1500 watts peak envelope power another matter Understanding environment no guarantee will never experience interference other amateur activities six meters never have dont know anyone has some potential exists opinion of us black flag fliers less likely experience interference six meters 72 MHz However intend fly RC six meters essential understand band being used fellow amateurs area local ham club good source information QST monthly magazine published ARRL will keep up-todate FCC rules band plans contests operating practices may have some effect RC operations intend avail yourself benefits ham radio other RC urge join participate both local ham club ARRL much less apt experience accidental interference local hams know activities Offer conduct program RC meetings ARRL has some control over destiny ham RC operations need voices within membership willing speak up NEW ONLY $2695 McS MODEL PLANE CADDY Fats aU single wiag planes body widths upto S 114 wing widths up aU landing gear conflgnrations Also available biwing style bodywidths up toS t/4 Siagh Wing$2695FREE BiWing$3195shipping handling SD cNEcK oft hioNEY ORDER AND SUIPHNG INFORMATION I~ MeS CADDYS PO nOX 185 RAEFORD NC 28376 40 Model Aviation 4I Eliminates wobble output shaft Reduces control response deadband Reduces chance flutter Improves control surface centering Allows use pull-pull cables Extends life servos PROPELLER SAFETY MESSAGE safety precautions designed enhance enjoyment model flying should part modelers routine both flying site workshop THE ULTIMATE RACK POR MELD CARRYING AND sTaRAun __________________PAT PBNDJ RC matters no substitute firsthand experience Try arrange use some type communications receiver covers six meters Most fairly inexpensive scanning receivers such sold Radio Shack include sixmeter band Typically FM receivers will copy repeaters other FM stations AM single-sideband digital stations will audible understandable Spend much time can listening various times day possible take receiver out field normal flying days listen listen youll learn ham radio Does ham license have potential increase enjoyment model aviation past fewer RC frequencies available non-hams exclusive channels available black flag fliers object considerable envy availability fifty 72 MHz channels has shortened wait pin model airports However some larger fly-ins six-meter users still enjoy slight advantage Free flight fliers often have look airplanes after successful flights ham free fighters equip models miniature radio beacons use simple direction-finding equipment facilitate recovery Ham radio has used transmit signals TV cameras carried model aircraft Experimenters advanced modelers may interested use ham radio telemetryreceiving data airspeed altitude rpm like models AMA technical team investigating interference potential RC operation occasioned FCC proposal NPRM 92-235 used amateur radio frequencies control aircraft used experiments Modeling-related communications can also important Most model airports have no telephone using hand-held radio local radio clubs two-meter L T-ON OWEN LESS HASSLE MORE FUN Dieselize Davis Diesel Its Awesome kHuo DAVIS MODeL PRODUCTS Devis Diesel Heads Over 100 models Irma 04936 cv Wadds largest preducer Medal Easel Fuek HOLIDAY SPECIAL rf $29951 1211III*%1iIM] Airborne Video Excitement Other Mobile Uses cameraTransmisier Range2000 feet Line sight Transmitter Size1250 x 1250 x 400 Weight5 ounce CameraSize181 2x 17345 x 980 Weight1 ounce Video 8OO2OODOS VISA A~A7D Order Yours Today Super Dou6er II Clipped Wing Version Designed Brad Shepherd wood Premium Quality Hand-Cut Kit Ku daeure Pee-Cut Machined Balsa & Lite Ply Pails Built Up nalsa Lite Ply Construction Two Sheets Full-Size Rolled Plans Extensive Hardware Package Pre-Bent Landing Gear Wire C Extremely aerobatic yet capable slow predictable flight Model Specifwavvons Wing Span 51 Inches wing Area 517 Sq Weight 4 3/4-5 1/4 lbs Recommended Radio Four Channel Recommended Engine 45-50 Four Stroke Spoil 40 Two Cycle Make Check Money Order out LINUK MODELS Add $450 S&H Mans Residents add\ / 5%Tax $425 LINCK MODELS Dept MA 141 Moulton Hill Road Monnon MA 01057 t413 267-9545 February 1995 41 4 50% Power Same Easy Starting No Glow Plugs Runs llvice Long Scale Sound PO Box 141 ord CT 06460 077-1670 complete cots/ag send selfaddressed 7S stamped #10 envelope & $3 credited te tot order MICRO-ELECTRIC ICRO-JET Ducted-Fan System Package Entire module weighs just 26 grams ounee thrust Flies models 6060 sq up 3 oz System Peetisge includes motor 3s 5OmAh Nid battery wiring harness charger pans complete Instructions build tan module MICROJETSJstm 1 flTWIN MICRO-JET System $2695 Plea acid 02 Se posaaaeandma id ernie repeater equipped autopatch ham can access telephone network call 911 will bring ambulance fire department need arises may simply want tell wife its great day flyinghold dinner until dark couple hams hand-held radios can simplify management long flight line parking area busy fly-in several on-the-air round tables meet regularly bit hangar flying via ham radio operate lower long-distance frequencies available Technician licensee some larger metropolitan areas will find nets operating local repeaters go RC flying originated ham bands hobbies RC flying ham radio will continue closely related Traditionally two hobbies have attracted same types individualstechnically inclined people driven experiment make things work radio equipment use today based technology developed amateurs likely next generation equipment will originate ham bands FCC under unrelenting pressure large powerful constituencies grant operating privileges increasing number users types radio equipment radio spectrum finite new user creates potential interference other users True clear channels no longer exist art RC modeling advancing giant steps flying heavy models speeds approach 200 mph magnificent Scale creations represent investments several thousand dollars several years work controlled best todays narrowband radios models can brought down spurious signal improperly maintained two-way radio passing car neighboring youngster new ARF discount toy store mixup pins frequency control board UNIQUEFree PLANS KITSCatalog Sd At4ea 1528 S KOELLER BOX 301W OSEKOSH WI 54951 uuv FOR THE MODELER! FREE /C14551 M304 6624538 CATALOG Choose Fmni Lage Selection OtShop Model & much morel tVIDEO TAPES ALSO 6.1 SAVE YOUR FIELD SNUF-LER muffler isa low cost easy install lightweight sound reducing muffler no performance penalty answer AMA muffler rule suggestions saving flying fields Meets AMA muffler rule suggestions SNUF-FLERM 3 10 decibels quieter stock muffler MUFFLER No power loss possible 300-500 RPM increase Pnted Improves engine idle s better fuel economy Easily attached 25-108 stock mufflers Heat corrosion resistant Black E coat finish No special adapters required weighs 35 oza Fits ASP BRAT ENYA FOX HP IRVINE K & B OS MAX ROYAL VS SUPER TIGRE mufflers available hobby shop ORDER DIRECT tor immediate shipment Check MO. Vioa MC COD SEND 250 STAMP accepted Add $250 UPS $200 COD 6% sales tax FOR ADDITIONAL INFO tsr CsliI residentAND JTEC CATALOG February 1995 43 8-BALL SPECIAL Giant Sport its Best premium quality wood & foam kit containing hand cut balsa ply parts f/ cowl aluminum landing gear canopy foam wing cores rolled plans Extremely aerobatic yet capable slow solid flight Span 85 Weight 175 lbs1 Intro Price $19995Area 1367 Length 63 S26955Power G38/042 similar Reids Quality Model Products 16 Main Street Phelps New York 14532 Catalog SLOO 3155483779 American Made 2 $2495 CAT NO BOO Some known basic technologies can provide radios vastly improved resistance interference What needed reduction practice demonstration testing actual operating environments Radio amateurs have historically demonstrated ability type thing FCC regulations encourage type experimentation ham bands promising long-term technology seems spread spectrum allows stations use same frequencies simultaneously mutual interference type emission already authorized some ham bands Short-term solutions may involve such well-known concepts frequency diversity present frequency assignments narrow-band radios result leadership dedication AMA AMA can should take leadership role solving interference problem through technical advance AMA can set goals coordinate activities experimenters provide liaison ARRL RCMA FCC other concerned parties Perhaps AMA can provide test equipment some funding sample demonstration hardware Spectrum pollution going get worse time marches going have radios need survive time action now can expect hams part Happy landings 73 Thanks Warren Plohr W8IAH made important contributions article Technical review Bob Underwood Robert Johnson AA4L Box 4099 Calabash NC 28467 oz 25 $1 O5IYd 2 oz 38 14 oz 44 $135IYd 3 oz 50 14 oz 50 $15OIYd 32 oz 50 FIBERGL4SS SUPER SALE Limited Quantities Prices Plain Weave Epoxy Finish Minimum Purchase 10 Yds $1 6OIYd $200/Yd $2OOIYd Satin Weave 316 oz 38 $25OIYd Bolt prices $075 $15OIYd CLUBS MANUFACIURERS & DEALERS WELCOME osite Structures Technology _____________________ P 0 Box 642 Dept JI Tehachapi CA 93581 Order Desk 1400438-1278 ' REPORT CARD ON HINGES After ten years everybody thinks schools out hinges Lets grade competition see needs classes EASY HINES- TM What look CA hinge Experience no can match SIGs 10 years development use HingeCorrect thickness achieve balance between strength durability flexibility ease assembly No holes slots weaken hinge Special surface treatment secure grip facing comes off hinge will come out Facing Thin easy insert hinge Treated C wicks across whole hinge wood Processed retard CA cure time correct mistake just surface bonds ALL surface bonds MATERIALS THAT REALLY WORK EVERY TIME FOR LONG liME Dont depend lucA depend SIG EASY HINGES first still best name CA hinges Hinges rather ordinary item critical life model Dont save buck hinges crash buy use SIG EASY HINGES confidence SIG Easy Hinges DB D GP B C F GB SH-710 Pkp 24- S29b Materials Total Thickness HingeThicknessAAAABAB TearStrengthAAAABAB A A F n A F n B fl4 F F D F F C4 D F Surface Treatment floknintinrj Stronnth Slots Holes Glue Action Wickina DelayedCureACCFFFF BC CCAverage Grade SIG MFG CO INC 401-7 So Front St Montezuma IA 50171 623-5154 February 1995 45 LIGHTING SYSTEMS THE ORIGINALS. Still Best RAM 01Adj Flash Nay Lights 9V NEW 94 span w/ wing light conn$2995 RAM 02Strobe Light 9V adjustable flash rate 1995 3995 RAM 03Landing Lights 48V receiver controlled RAM 04Mars Rotating Beacon 9V adjustable rate1995 RAM 05Marine Navigation Lights 9V non flashing1095 RAM 06Sky Lights 18 Light Set 72-9V best way fly night2495 RAM 14Big Airplane Navigation Lights 9V 168 span non flashing2495 RAM 16Econo Landing Lights 9V servo controlled brightest1995 RAM 23Real Strobe Light 3V brightest2995 RAM 65 T6 Lg Scale Lighting 72-9V Comb #s 04 14 & 16 100 span 5995 SEE YOUR DEALERS SEND STAMPED ENVELOPE FOR RAM iNFO if unavailabie iocaiiy send check money order fuli credit card info cost item plus $4 DO l$5 00 foreignl br immediate shipnent include fuli address br UPS Sorry no COD cRam 229C E Rollins Rd d Lake Beach IL 60073 ST F D D F D
Edition: Model Aviation - 1995/02
Page Numbers: 35, 37, 38, 39, 40, 41, 43, 45
Recen t changes amateur radio regulations can put ham license within easy reach almost anyone RC fliers have taken advantage new licensing regulations thinking about Discussions club meetings fly-ins have convinced new prospective hams have clear understanding rules practices relating remote control model craft Federal Communications Commission terminology via amateur radio six-meter old-timers active other phases ham radio aware newer types non-RC activities six-meter band Club officers contest direct ors have responsibility frequency control compliance AMA Safety Code Radio Control Utilization Plan seem singularly unin formed what con stitutes legal six-meter oper ation article represents effort part change First few definitions Part 97 subpart FCC regulations defines amateur service radio communication service purpose self-training intercommunication technical investigations carried out amateurs duly authorized persons interested radio technique solely personal aim pecuniary interest An amateur operator defined person holding written authorization control operator amateur radio station written authorization amateur license amateur license actually has two partsan operators license station license FCC assigns call sign amateur station five classes operator licenses different classes licenses convey different operating privileges require demonstration different skill levels no-code license February 1991 FCC eliminated Morse code test examination Technician class amateur radio license Technician class license may now obtained simply passing 55-question multiple-choice written test amateur regulations amateur practices basic radio communications theory Technician license conveys full amateur privileges amateur frequencies above 30 MHz including six-meter band Amateur license exams conducted FCC-authorized volunteer examiners Check local ham club obtain exam schedule area American Radio Relay League ARRL 225 Main St Newington CT 06111 publishes complete study materials Technician license can put contact nearest ARRL-affiliated ham club clubs conduct licensing classes ARRL material contains need know exam simply isnt tough spend some time preparing Only simplest math required Regulations What RC privileges does FCC extend Technician licensee specific reference RC amateur reg-ulations contained subpart C regulations 972 15 Remote control model craft An amateur station trans mitting signals model craft may operated follows station iden tification procedure required transmissions directed model craft provided label indicating station call sign station licensees name address affixed station transmitter b control signals considered codes ciphers intended obscure meaning com munication c transmitter power must exceed 1 W Section excuses RC station re quirement ama teur station must period ically transmit its call sign via voice Morse code other authorized type emission Section b has regulations prohibit ham use codes ciphers regulations specifically define model craft believe FCC would look kindly use ham radio control full-scale airplane automobile Another regulation interest 979 states part license document photocopy thereof must personal possession licensee times person control operator station cited regulations should lay rest some myths concerning just what constitutes legal use amateur frequencies RC Part 4 AMA Radio Control Utilization Plan requires AMA event officials enforce Amateur Radio Operator licensing requirements sanctioned events experience seldom done usual excuse access Call Book February 1995 35 officials have no way determine licensed Regulation 979 plainly states no can legally operate amateur radio station unless has license personal possession Period Event officials should also verify transmitter labeling requirements 97215 met Violation of regulations can result criminal civil penalties Admittedly FCC enforcement agents unlikely visit fly-ins However FCC may well become involved should unfortunate incident occur Furthermore believe use amateur RC equipment contrary FCC regulations constitutes violation AMA safety code suspect may also negate some primary liability coverage provided homeowners umbrella policies have told event officials should know better its legal anyone fly six meters long licensed amateur turns transmitter off definitely no specific authorization regulations allow anyone licensed amateur operate hamband RC transmitter Rule 97115 does permit unlicensed persons under certain conditions participate amateur radio communications under immediate supervision licensed control operator However FCC issued ruling FCC 80-634 dated November 6 1980 97115 does apply RC operations no circumstances under unlicensed person may operate RC transmitter operating amateur frequencies Part 97 has completely rewritten since ruling issued language interest remains essentially unchanged Therefore ruling still effect has force law An unlicensed person cannot legally touch controls RC transmitter transmitting signals amateur frequencies As licensed amateur cannot hand transmitter unlicensed person purposes instruction demonstration buddy-box system transmits ham frequencies used both users must licensed amateurs thanks Technical Director Bob Underwood very kindly dug copy FCC ruling out voluminous files Frequencies Note no mention 97215 specific frequencies word about six meters 50 MHz 53 MHz other magic numbers come mind think about ham radio RC fact no specific frequencies channels designated FCC RC use no exclusive RC channels ham bands Regulations contained subpart D part 97 identify types radio frequency emissions may used various frequencies assigned amateur radio service regulations effectively prohibit types emissions used RC equipment frequencies below 501 MHz still leaves us quite bit room Todays radio technology makes RC control practical amateur bands 6 meters 2 meters 125 meters 70 centimeters 33 centimeters 23 centimeters Thats 1268 MHz spectrum space 20 kHz spacing room 6340 RC channels legal far FCC concerned course channels use amateurs purposes unrelated RC still plenty room available need Six-meter practices Le galities aside am aware RC activity using ham band other six-meter band sixmeter band includes frequencies between 50 54 MHz Ten RC channels eight two-color frequencies common use ten channels between 50800 50980 MHz channels spaced 20 kHz apart have assigned AMA RCMA channel numbers 00 09 Because channel spacing same now used 72 MHz use narrow-band receivers narrow-band formerly gold-stickered transmitters required field identification system same used 72 MHz except black rather red wind streamer used additional frequencies 53100 53200 53300 0 MHz Since frequencies 100 kHz apart narrow-band equipment required frequencies have assigned channel numbers identified field two-color wind streamer system top streamer black indicating use amateur frequency color second streamer indicates frequency See AMA Membership Manual details channel-marking systems other information AMA Radio Control Utilization Plan frequencies channels may used licensed amateurs control aircraft surface models History historical reasons present day six-meter frequency conventions immediate post-WW II period RC flying done hams no frequencies assigned FCC RC use anyone else very little manufactured RC equipment available hams built own FCC regulations technology available time made six meters principal band choice particular frequency ham used usually dictated whatever war surplus crystal could find junk box February 1995 37 Dark Yellow Orange Black White Silver Perfect Paint high quality part fuel proof paint combines convenience superb results Perfect Paint will cover dopes epoxies metals fiberglass plastic smooth hard mar resis tant finish will crack chip NOW AVAILABLE p~ucheveronihobbyiproductsN PO Box 2480 Sandusky Ohio 44870 Phone & Fax 419-797-2208 video enables beginner LU cover model th 25mb professional results Easy follow presentation Film Video Pioductions 512 847-1551 512 847-9104 $2995 -4- 300 5 & H 20 Summit Dr west wimberley TX 78676 little standardization frequencies few manufacturers Frequency coordination among fliers really problem since RC pilots very few quite far between gas tube super-regenerative receivers day did have sufticient selectivity allow simultaneous flights same field regardless frequency As state art progressed receivers became selective manufactured equipment became available RC fliers chose frequencies near 53 MHz upper end band avoid interference amateur stations engaged point-to-point communications lower end band communications stations avoided upper end band order avoid interference TV channel 2 54-60 MHz early television sets lacked selectivity advent RC superheterodyne receivers possible conduct RC flight time eventually hams AMA manufacturers agreed standardize eight 53 MHz frequencies simplify frequency coordination among fliers 100 kHz spacing appropriate capabilities early superhets 50 MHz channels came being because changes way amateurs use six-meter band addition traditional point-to-point communications via voice Morse code variety communication modes have come use Amateur repeater stations now widely used repeater station relays rebroadcasts signals other stations Repeater station antennas normally located mountaintops tall buildings towers repeaters may have effective communications range 100 miles Two amateurs six meters attempting communicate point-to-point using lowpowered hand-held mobile radios simple antennas would probably have communications range ten miles average terrain relaying signals through repeater range would dramatically extended Repeaters usually owned maintained ham clubs operate fixed frequencies FCC has authorized repeater stations operate frequencies between 51 54MHz FCC regulations micromanage ham bands Over years amateur community has demonstrated its ability keep its own house order FCC has wisely refrained creating lot rules does have resources enforce largely left up amateurs decide among themselves type activities conducted portions various ham bands no means simple task some central coordinating agency required ARRL has undertaken job has created band plans various ham bands ARRL amateur radio AMA model aviation two organizations arc similarly organized principal spokesman hobby provide similar services members except ARRL liability insurance business share somewhat similar problems amateur ARRL member ARRL member pleased decisions made ARRL no matter democratic decision-making process Sound familiar ARRL band plans have force law ARRL has no enforcement authority its band plans essentially gentlemens agreements However blatant disregard established operating conventions such specified band plans may well bring citation FCC under 97101 requires operations conducted accordance good engineering good amateur practice Deliberate malicious interference radio communication signal also prohibited 97101 Despite potential shortcomings band plans almost universally observed amateurs Newcomers may have never heard band plans quickly discover no talk operate out band plan segments 38 Model Aviation 4COLORS Flame Red Deep Red Sky Blue Deep Blue Midnight Blue Bright Yellow Cub Yellow J Complete Line Precision Bench Top MetalworKIng quipment MANUAL & CNC LATHES S SSORIES LOCAL PARTS Using 53 MHz 53 MHz RC frequencies included older ARRL six-meter band plans However FCC authorized repeater operations frequencies ARRL decided would best interests majority amateurs move preferred location RC operations 50800 MHz band segment change coordinated AMA occurred less simultaneously phased changes 72 MHz did away old two-color 72 MHz frequencies eventually resulted todays 50-channel environment 53 MHz channels no longer ARRL band plan However still included AMA Radio Control Utilization Plan RCUP still used ham fliers present amateur communication via repeater stations conducted amateur two-meter band 144-148 Mhz Almost location United States within communications range least two-meter repeater live coast very southeastern corner North Carolina can contact least dozen two-meter repeaters low-powered mobile radio no six-meter repeaters within communications range total 50 active six-meter repeaters southeastern states GA KY MS NC SC TN VA WV Thirteen repeaters transmit frequencies 10 kHz away 53 MHz RC frequencies can supply list repeater frequencies locations states Send businesssize SASE address end article eight states 13 areas 53 MHz frequencies may subject repeater interference depending capabilities RC receiver used location power level repeater very few cases areas may overlap two three frequencies might possibly affected states no problem finding 53 MHz frequency free interference similar situation prevails parts country southeast repeaters transmit 53 MHz frequencies output frequency listen 52 MHz frequencies input frequency may true regions RC users must avoid both input output frequencies repeaters Operation near input frequencies may result interference fixed mobile stations transmitting repeater Transmissions RC transmitter may interfere jam repeater very impolite will make repeater users very angry may result citation FCC under 97101 prevent repeaters interfering other coordinated FCC-recognized regional volunteer amateur organizations groups reliable source up-to-date information about repeater operations area Ask local radio club ARRL contact repeater coordinator area plan attend fly-in contest away home dont forget check repeater situation destination Six-meter repeaters pose little no problem RC operation 53 MHz frequencies arent very since operate fixed frequencies easy avoid careful using 53 MHz fields located near television transmitting sites TV channel 2 54-60 MHz Most TV stations have very high levels effective radiated power interference real possibility Using channels 00-09 Ideally 508 MHz channels channels 00-09 will free interference amateur stations engaged point-to-point communications However equipment used point-topoint communication fully frequency agile entirely possible operator engaged communications stray area above 508 MHz Propagation six-meter band normally line-of-sight However ionospheric conditions will occasionally support brief periods long distance skip TEE STRIPS SELF ADHESIVE SANDING STRIP FOR USE WITH ALL /A14 TEE-BAR PRODUCTS 3 x 5 yds continuous roll Cut length Adheres surfaces Clean neat Available assorted grits No messy glue drying time Unroll length cut & apply Instantly ready sanding No132G 100180 280 Garnet $595 25 Load Free Silicon Carbide $660 Add 20% postage Send 500 catalog k Applied Design Co P 0 Box 3384 Torrance CA 90510 2 volt ci motor pictured out Fox 74 motor prrn power reliability have expect Fox motors BUY SMART BUY AMERICAN BUY FOX VV FOX FOX MANUFACTURING COMPANY 5305 TOWSON AVENUE FORT SMITH ARKANSAS 72901 PHONE 501 646-1656 501 646-1757 February 1995 39 LDM Industries Ball Bearing Servo Conversion Kits can upgrade standard servos ball bearing servos just minutes less cost 1 ball bearingservoyou can upgrade4 standard servos Futaba Kit Fits S28 538 S48 5128 S138 5148 Cirrus CS28 CS128 CS238 CS248 servos #9600 4 pack 95 #96101 pack 5 Aliftonics Kit Fits 94102 standard servo #9700 4 pack$2995 #9710 1 pack$795 Univeisal Kit Fits]R501 &507Focus HS300 RCDO5 Tower TE-SI Hobbico CS-51 Ace 330 19800 4 pack$2095 #98101 pack$595 Other Great Products LDM Part #8000 STRONGBOX$795 Part #8100 STRONGBOX II$1195 Part #9500 NO-HEAT Trim Solvent$695 1 Select correct propeller size following engine manufacturers recommendation 2 Before using plastic props remove flash along edges propeller scraping pocket knife 3 Install propeller using correct nut washer airfoil side forward securely tighten wrench Recheck after flight 4 Only use chicken stick electric starter start engine make adjust ments behind engine 5 Keep spectators least 20 feet away out path rotating propeller order send check money order including $300 S & H LDI Industries Inc PO Box 292396 Dept 2 Tampa FL 336872396 Phone 8139914277 Fax 813991-4810 Florida residents add 61/2% sales tax VISA and MASTER CARD Accepted @1993 LDM Industries Inc 6 Wear safety glasses hand protection operating model engines DO NOT permit objects touch turning pro peller Remain clear propeller arc 7 To stop engine cut off fuel supply accordance manufacturers instruc tions case DO NOT stop pro peller hand other object 8 Inspect propeller after flight Dis card propeller has nicks scratches other visible defect DO NOT repair alter way modify propeller 9 Propeller tips should painted order increase visibility turning rotating propeller can cause serious personal injury FOLLOW THESE INSTRUCTIONS CAREFULLY Windsor Propeller Co / 3219 Monier Circle / Rancho Cordova CA / 95742 * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $299 Cat No 202 Air Cleaner Fine $299 Replacement Inserts Cat No 104 PkI2 Inserts Coarse $239 Cat No 204 Pk/2 Inserts Fine 239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc POBox3756CenrerLineMichigan4lOl5 lAdd $250 shipping igan residents add 4% sales taxI communications band openings occur number stations air increases dramatically time time amateur organizations sponsor operating contests include six-meter band object usually make contact stations areas possible During band openings contests band occupancy high band tends fill up bottom Stations move higher frequency find clear channel entirely possible heat competition such niceties band plan RC channels may forgotten ignored unlikely will ever experience interference distant station due skip propagation local station working skip legal limit 1500 watts peak envelope power another matter Understanding environment no guarantee will never experience interference other amateur activities six meters never have dont know anyone has some potential exists opinion of us black flag fliers less likely experience interference six meters 72 MHz However intend fly RC six meters essential understand band being used fellow amateurs area local ham club good source information QST monthly magazine published ARRL will keep up-todate FCC rules band plans contests operating practices may have some effect RC operations intend avail yourself benefits ham radio other RC urge join participate both local ham club ARRL much less apt experience accidental interference local hams know activities Offer conduct program RC meetings ARRL has some control over destiny ham RC operations need voices within membership willing speak up NEW ONLY $2695 McS MODEL PLANE CADDY Fats aU single wiag planes body widths upto S 114 wing widths up aU landing gear conflgnrations Also available biwing style bodywidths up toS t/4 Siagh Wing$2695FREE BiWing$3195shipping handling SD cNEcK oft hioNEY ORDER AND SUIPHNG INFORMATION I~ MeS CADDYS PO nOX 185 RAEFORD NC 28376 40 Model Aviation 4I Eliminates wobble output shaft Reduces control response deadband Reduces chance flutter Improves control surface centering Allows use pull-pull cables Extends life servos PROPELLER SAFETY MESSAGE safety precautions designed enhance enjoyment model flying should part modelers routine both flying site workshop THE ULTIMATE RACK POR MELD CARRYING AND sTaRAun __________________PAT PBNDJ RC matters no substitute firsthand experience Try arrange use some type communications receiver covers six meters Most fairly inexpensive scanning receivers such sold Radio Shack include sixmeter band Typically FM receivers will copy repeaters other FM stations AM single-sideband digital stations will audible understandable Spend much time can listening various times day possible take receiver out field normal flying days listen listen youll learn ham radio Does ham license have potential increase enjoyment model aviation past fewer RC frequencies available non-hams exclusive channels available black flag fliers object considerable envy availability fifty 72 MHz channels has shortened wait pin model airports However some larger fly-ins six-meter users still enjoy slight advantage Free flight fliers often have look airplanes after successful flights ham free fighters equip models miniature radio beacons use simple direction-finding equipment facilitate recovery Ham radio has used transmit signals TV cameras carried model aircraft Experimenters advanced modelers may interested use ham radio telemetryreceiving data airspeed altitude rpm like models AMA technical team investigating interference potential RC operation occasioned FCC proposal NPRM 92-235 used amateur radio frequencies control aircraft used experiments Modeling-related communications can also important Most model airports have no telephone using hand-held radio local radio clubs two-meter L T-ON OWEN LESS HASSLE MORE FUN Dieselize Davis Diesel Its Awesome kHuo DAVIS MODeL PRODUCTS Devis Diesel Heads Over 100 models Irma 04936 cv Wadds largest preducer Medal Easel Fuek HOLIDAY SPECIAL rf $29951 1211III*%1iIM] Airborne Video Excitement Other Mobile Uses cameraTransmisier Range2000 feet Line sight Transmitter Size1250 x 1250 x 400 Weight5 ounce CameraSize181 2x 17345 x 980 Weight1 ounce Video 8OO2OODOS VISA A~A7D Order Yours Today Super Dou6er II Clipped Wing Version Designed Brad Shepherd wood Premium Quality Hand-Cut Kit Ku daeure Pee-Cut Machined Balsa & Lite Ply Pails Built Up nalsa Lite Ply Construction Two Sheets Full-Size Rolled Plans Extensive Hardware Package Pre-Bent Landing Gear Wire C Extremely aerobatic yet capable slow predictable flight Model Specifwavvons Wing Span 51 Inches wing Area 517 Sq Weight 4 3/4-5 1/4 lbs Recommended Radio Four Channel Recommended Engine 45-50 Four Stroke Spoil 40 Two Cycle Make Check Money Order out LINUK MODELS Add $450 S&H Mans Residents add\ / 5%Tax $425 LINCK MODELS Dept MA 141 Moulton Hill Road Monnon MA 01057 t413 267-9545 February 1995 41 4 50% Power Same Easy Starting No Glow Plugs Runs llvice Long Scale Sound PO Box 141 ord CT 06460 077-1670 complete cots/ag send selfaddressed 7S stamped #10 envelope & $3 credited te tot order MICRO-ELECTRIC ICRO-JET Ducted-Fan System Package Entire module weighs just 26 grams ounee thrust Flies models 6060 sq up 3 oz System Peetisge includes motor 3s 5OmAh Nid battery wiring harness charger pans complete Instructions build tan module MICROJETSJstm 1 flTWIN MICRO-JET System $2695 Plea acid 02 Se posaaaeandma id ernie repeater equipped autopatch ham can access telephone network call 911 will bring ambulance fire department need arises may simply want tell wife its great day flyinghold dinner until dark couple hams hand-held radios can simplify management long flight line parking area busy fly-in several on-the-air round tables meet regularly bit hangar flying via ham radio operate lower long-distance frequencies available Technician licensee some larger metropolitan areas will find nets operating local repeaters go RC flying originated ham bands hobbies RC flying ham radio will continue closely related Traditionally two hobbies have attracted same types individualstechnically inclined people driven experiment make things work radio equipment use today based technology developed amateurs likely next generation equipment will originate ham bands FCC under unrelenting pressure large powerful constituencies grant operating privileges increasing number users types radio equipment radio spectrum finite new user creates potential interference other users True clear channels no longer exist art RC modeling advancing giant steps flying heavy models speeds approach 200 mph magnificent Scale creations represent investments several thousand dollars several years work controlled best todays narrowband radios models can brought down spurious signal improperly maintained two-way radio passing car neighboring youngster new ARF discount toy store mixup pins frequency control board UNIQUEFree PLANS KITSCatalog Sd At4ea 1528 S KOELLER BOX 301W OSEKOSH WI 54951 uuv FOR THE MODELER! FREE /C14551 M304 6624538 CATALOG Choose Fmni Lage Selection OtShop Model & much morel tVIDEO TAPES ALSO 6.1 SAVE YOUR FIELD SNUF-LER muffler isa low cost easy install lightweight sound reducing muffler no performance penalty answer AMA muffler rule suggestions saving flying fields Meets AMA muffler rule suggestions SNUF-FLERM 3 10 decibels quieter stock muffler MUFFLER No power loss possible 300-500 RPM increase Pnted Improves engine idle s better fuel economy Easily attached 25-108 stock mufflers Heat corrosion resistant Black E coat finish No special adapters required weighs 35 oza Fits ASP BRAT ENYA FOX HP IRVINE K & B OS MAX ROYAL VS SUPER TIGRE mufflers available hobby shop ORDER DIRECT tor immediate shipment Check MO. Vioa MC COD SEND 250 STAMP accepted Add $250 UPS $200 COD 6% sales tax FOR ADDITIONAL INFO tsr CsliI residentAND JTEC CATALOG February 1995 43 8-BALL SPECIAL Giant Sport its Best premium quality wood & foam kit containing hand cut balsa ply parts f/ cowl aluminum landing gear canopy foam wing cores rolled plans Extremely aerobatic yet capable slow solid flight Span 85 Weight 175 lbs1 Intro Price $19995Area 1367 Length 63 S26955Power G38/042 similar Reids Quality Model Products 16 Main Street Phelps New York 14532 Catalog SLOO 3155483779 American Made 2 $2495 CAT NO BOO Some known basic technologies can provide radios vastly improved resistance interference What needed reduction practice demonstration testing actual operating environments Radio amateurs have historically demonstrated ability type thing FCC regulations encourage type experimentation ham bands promising long-term technology seems spread spectrum allows stations use same frequencies simultaneously mutual interference type emission already authorized some ham bands Short-term solutions may involve such well-known concepts frequency diversity present frequency assignments narrow-band radios result leadership dedication AMA AMA can should take leadership role solving interference problem through technical advance AMA can set goals coordinate activities experimenters provide liaison ARRL RCMA FCC other concerned parties Perhaps AMA can provide test equipment some funding sample demonstration hardware Spectrum pollution going get worse time marches going have radios need survive time action now can expect hams part Happy landings 73 Thanks Warren Plohr W8IAH made important contributions article Technical review Bob Underwood Robert Johnson AA4L Box 4099 Calabash NC 28467 oz 25 $1 O5IYd 2 oz 38 14 oz 44 $135IYd 3 oz 50 14 oz 50 $15OIYd 32 oz 50 FIBERGL4SS SUPER SALE Limited Quantities Prices Plain Weave Epoxy Finish Minimum Purchase 10 Yds $1 6OIYd $200/Yd $2OOIYd Satin Weave 316 oz 38 $25OIYd Bolt prices $075 $15OIYd CLUBS MANUFACIURERS & DEALERS WELCOME osite Structures Technology _____________________ P 0 Box 642 Dept JI Tehachapi CA 93581 Order Desk 1400438-1278 ' REPORT CARD ON HINGES After ten years everybody thinks schools out hinges Lets grade competition see needs classes EASY HINES- TM What look CA hinge Experience no can match SIGs 10 years development use HingeCorrect thickness achieve balance between strength durability flexibility ease assembly No holes slots weaken hinge Special surface treatment secure grip facing comes off hinge will come out Facing Thin easy insert hinge Treated C wicks across whole hinge wood Processed retard CA cure time correct mistake just surface bonds ALL surface bonds MATERIALS THAT REALLY WORK EVERY TIME FOR LONG liME Dont depend lucA depend SIG EASY HINGES first still best name CA hinges Hinges rather ordinary item critical life model Dont save buck hinges crash buy use SIG EASY HINGES confidence SIG Easy Hinges DB D GP B C F GB SH-710 Pkp 24- S29b Materials Total Thickness HingeThicknessAAAABAB TearStrengthAAAABAB A A F n A F n B fl4 F F D F F C4 D F Surface Treatment floknintinrj Stronnth Slots Holes Glue Action Wickina DelayedCureACCFFFF BC CCAverage Grade SIG MFG CO INC 401-7 So Front St Montezuma IA 50171 623-5154 February 1995 45 LIGHTING SYSTEMS THE ORIGINALS. Still Best RAM 01Adj Flash Nay Lights 9V NEW 94 span w/ wing light conn$2995 RAM 02Strobe Light 9V adjustable flash rate 1995 3995 RAM 03Landing Lights 48V receiver controlled RAM 04Mars Rotating Beacon 9V adjustable rate1995 RAM 05Marine Navigation Lights 9V non flashing1095 RAM 06Sky Lights 18 Light Set 72-9V best way fly night2495 RAM 14Big Airplane Navigation Lights 9V 168 span non flashing2495 RAM 16Econo Landing Lights 9V servo controlled brightest1995 RAM 23Real Strobe Light 3V brightest2995 RAM 65 T6 Lg Scale Lighting 72-9V Comb #s 04 14 & 16 100 span 5995 SEE YOUR DEALERS SEND STAMPED ENVELOPE FOR RAM iNFO if unavailabie iocaiiy send check money order fuli credit card info cost item plus $4 DO l$5 00 foreignl br immediate shipnent include fuli address br UPS Sorry no COD cRam 229C E Rollins Rd d Lake Beach IL 60073 ST F D D F D
Edition: Model Aviation - 1995/02
Page Numbers: 35, 37, 38, 39, 40, 41, 43, 45
Recen t changes amateur radio regulations can put ham license within easy reach almost anyone RC fliers have taken advantage new licensing regulations thinking about Discussions club meetings fly-ins have convinced new prospective hams have clear understanding rules practices relating remote control model craft Federal Communications Commission terminology via amateur radio six-meter old-timers active other phases ham radio aware newer types non-RC activities six-meter band Club officers contest direct ors have responsibility frequency control compliance AMA Safety Code Radio Control Utilization Plan seem singularly unin formed what con stitutes legal six-meter oper ation article represents effort part change First few definitions Part 97 subpart FCC regulations defines amateur service radio communication service purpose self-training intercommunication technical investigations carried out amateurs duly authorized persons interested radio technique solely personal aim pecuniary interest An amateur operator defined person holding written authorization control operator amateur radio station written authorization amateur license amateur license actually has two partsan operators license station license FCC assigns call sign amateur station five classes operator licenses different classes licenses convey different operating privileges require demonstration different skill levels no-code license February 1991 FCC eliminated Morse code test examination Technician class amateur radio license Technician class license may now obtained simply passing 55-question multiple-choice written test amateur regulations amateur practices basic radio communications theory Technician license conveys full amateur privileges amateur frequencies above 30 MHz including six-meter band Amateur license exams conducted FCC-authorized volunteer examiners Check local ham club obtain exam schedule area American Radio Relay League ARRL 225 Main St Newington CT 06111 publishes complete study materials Technician license can put contact nearest ARRL-affiliated ham club clubs conduct licensing classes ARRL material contains need know exam simply isnt tough spend some time preparing Only simplest math required Regulations What RC privileges does FCC extend Technician licensee specific reference RC amateur reg-ulations contained subpart C regulations 972 15 Remote control model craft An amateur station trans mitting signals model craft may operated follows station iden tification procedure required transmissions directed model craft provided label indicating station call sign station licensees name address affixed station transmitter b control signals considered codes ciphers intended obscure meaning com munication c transmitter power must exceed 1 W Section excuses RC station re quirement ama teur station must period ically transmit its call sign via voice Morse code other authorized type emission Section b has regulations prohibit ham use codes ciphers regulations specifically define model craft believe FCC would look kindly use ham radio control full-scale airplane automobile Another regulation interest 979 states part license document photocopy thereof must personal possession licensee times person control operator station cited regulations should lay rest some myths concerning just what constitutes legal use amateur frequencies RC Part 4 AMA Radio Control Utilization Plan requires AMA event officials enforce Amateur Radio Operator licensing requirements sanctioned events experience seldom done usual excuse access Call Book February 1995 35 officials have no way determine licensed Regulation 979 plainly states no can legally operate amateur radio station unless has license personal possession Period Event officials should also verify transmitter labeling requirements 97215 met Violation of regulations can result criminal civil penalties Admittedly FCC enforcement agents unlikely visit fly-ins However FCC may well become involved should unfortunate incident occur Furthermore believe use amateur RC equipment contrary FCC regulations constitutes violation AMA safety code suspect may also negate some primary liability coverage provided homeowners umbrella policies have told event officials should know better its legal anyone fly six meters long licensed amateur turns transmitter off definitely no specific authorization regulations allow anyone licensed amateur operate hamband RC transmitter Rule 97115 does permit unlicensed persons under certain conditions participate amateur radio communications under immediate supervision licensed control operator However FCC issued ruling FCC 80-634 dated November 6 1980 97115 does apply RC operations no circumstances under unlicensed person may operate RC transmitter operating amateur frequencies Part 97 has completely rewritten since ruling issued language interest remains essentially unchanged Therefore ruling still effect has force law An unlicensed person cannot legally touch controls RC transmitter transmitting signals amateur frequencies As licensed amateur cannot hand transmitter unlicensed person purposes instruction demonstration buddy-box system transmits ham frequencies used both users must licensed amateurs thanks Technical Director Bob Underwood very kindly dug copy FCC ruling out voluminous files Frequencies Note no mention 97215 specific frequencies word about six meters 50 MHz 53 MHz other magic numbers come mind think about ham radio RC fact no specific frequencies channels designated FCC RC use no exclusive RC channels ham bands Regulations contained subpart D part 97 identify types radio frequency emissions may used various frequencies assigned amateur radio service regulations effectively prohibit types emissions used RC equipment frequencies below 501 MHz still leaves us quite bit room Todays radio technology makes RC control practical amateur bands 6 meters 2 meters 125 meters 70 centimeters 33 centimeters 23 centimeters Thats 1268 MHz spectrum space 20 kHz spacing room 6340 RC channels legal far FCC concerned course channels use amateurs purposes unrelated RC still plenty room available need Six-meter practices Le galities aside am aware RC activity using ham band other six-meter band sixmeter band includes frequencies between 50 54 MHz Ten RC channels eight two-color frequencies common use ten channels between 50800 50980 MHz channels spaced 20 kHz apart have assigned AMA RCMA channel numbers 00 09 Because channel spacing same now used 72 MHz use narrow-band receivers narrow-band formerly gold-stickered transmitters required field identification system same used 72 MHz except black rather red wind streamer used additional frequencies 53100 53200 53300 0 MHz Since frequencies 100 kHz apart narrow-band equipment required frequencies have assigned channel numbers identified field two-color wind streamer system top streamer black indicating use amateur frequency color second streamer indicates frequency See AMA Membership Manual details channel-marking systems other information AMA Radio Control Utilization Plan frequencies channels may used licensed amateurs control aircraft surface models History historical reasons present day six-meter frequency conventions immediate post-WW II period RC flying done hams no frequencies assigned FCC RC use anyone else very little manufactured RC equipment available hams built own FCC regulations technology available time made six meters principal band choice particular frequency ham used usually dictated whatever war surplus crystal could find junk box February 1995 37 Dark Yellow Orange Black White Silver Perfect Paint high quality part fuel proof paint combines convenience superb results Perfect Paint will cover dopes epoxies metals fiberglass plastic smooth hard mar resis tant finish will crack chip NOW AVAILABLE p~ucheveronihobbyiproductsN PO Box 2480 Sandusky Ohio 44870 Phone & Fax 419-797-2208 video enables beginner LU cover model th 25mb professional results Easy follow presentation Film Video Pioductions 512 847-1551 512 847-9104 $2995 -4- 300 5 & H 20 Summit Dr west wimberley TX 78676 little standardization frequencies few manufacturers Frequency coordination among fliers really problem since RC pilots very few quite far between gas tube super-regenerative receivers day did have sufticient selectivity allow simultaneous flights same field regardless frequency As state art progressed receivers became selective manufactured equipment became available RC fliers chose frequencies near 53 MHz upper end band avoid interference amateur stations engaged point-to-point communications lower end band communications stations avoided upper end band order avoid interference TV channel 2 54-60 MHz early television sets lacked selectivity advent RC superheterodyne receivers possible conduct RC flight time eventually hams AMA manufacturers agreed standardize eight 53 MHz frequencies simplify frequency coordination among fliers 100 kHz spacing appropriate capabilities early superhets 50 MHz channels came being because changes way amateurs use six-meter band addition traditional point-to-point communications via voice Morse code variety communication modes have come use Amateur repeater stations now widely used repeater station relays rebroadcasts signals other stations Repeater station antennas normally located mountaintops tall buildings towers repeaters may have effective communications range 100 miles Two amateurs six meters attempting communicate point-to-point using lowpowered hand-held mobile radios simple antennas would probably have communications range ten miles average terrain relaying signals through repeater range would dramatically extended Repeaters usually owned maintained ham clubs operate fixed frequencies FCC has authorized repeater stations operate frequencies between 51 54MHz FCC regulations micromanage ham bands Over years amateur community has demonstrated its ability keep its own house order FCC has wisely refrained creating lot rules does have resources enforce largely left up amateurs decide among themselves type activities conducted portions various ham bands no means simple task some central coordinating agency required ARRL has undertaken job has created band plans various ham bands ARRL amateur radio AMA model aviation two organizations arc similarly organized principal spokesman hobby provide similar services members except ARRL liability insurance business share somewhat similar problems amateur ARRL member ARRL member pleased decisions made ARRL no matter democratic decision-making process Sound familiar ARRL band plans have force law ARRL has no enforcement authority its band plans essentially gentlemens agreements However blatant disregard established operating conventions such specified band plans may well bring citation FCC under 97101 requires operations conducted accordance good engineering good amateur practice Deliberate malicious interference radio communication signal also prohibited 97101 Despite potential shortcomings band plans almost universally observed amateurs Newcomers may have never heard band plans quickly discover no talk operate out band plan segments 38 Model Aviation 4COLORS Flame Red Deep Red Sky Blue Deep Blue Midnight Blue Bright Yellow Cub Yellow J Complete Line Precision Bench Top MetalworKIng quipment MANUAL & CNC LATHES S SSORIES LOCAL PARTS Using 53 MHz 53 MHz RC frequencies included older ARRL six-meter band plans However FCC authorized repeater operations frequencies ARRL decided would best interests majority amateurs move preferred location RC operations 50800 MHz band segment change coordinated AMA occurred less simultaneously phased changes 72 MHz did away old two-color 72 MHz frequencies eventually resulted todays 50-channel environment 53 MHz channels no longer ARRL band plan However still included AMA Radio Control Utilization Plan RCUP still used ham fliers present amateur communication via repeater stations conducted amateur two-meter band 144-148 Mhz Almost location United States within communications range least two-meter repeater live coast very southeastern corner North Carolina can contact least dozen two-meter repeaters low-powered mobile radio no six-meter repeaters within communications range total 50 active six-meter repeaters southeastern states GA KY MS NC SC TN VA WV Thirteen repeaters transmit frequencies 10 kHz away 53 MHz RC frequencies can supply list repeater frequencies locations states Send businesssize SASE address end article eight states 13 areas 53 MHz frequencies may subject repeater interference depending capabilities RC receiver used location power level repeater very few cases areas may overlap two three frequencies might possibly affected states no problem finding 53 MHz frequency free interference similar situation prevails parts country southeast repeaters transmit 53 MHz frequencies output frequency listen 52 MHz frequencies input frequency may true regions RC users must avoid both input output frequencies repeaters Operation near input frequencies may result interference fixed mobile stations transmitting repeater Transmissions RC transmitter may interfere jam repeater very impolite will make repeater users very angry may result citation FCC under 97101 prevent repeaters interfering other coordinated FCC-recognized regional volunteer amateur organizations groups reliable source up-to-date information about repeater operations area Ask local radio club ARRL contact repeater coordinator area plan attend fly-in contest away home dont forget check repeater situation destination Six-meter repeaters pose little no problem RC operation 53 MHz frequencies arent very since operate fixed frequencies easy avoid careful using 53 MHz fields located near television transmitting sites TV channel 2 54-60 MHz Most TV stations have very high levels effective radiated power interference real possibility Using channels 00-09 Ideally 508 MHz channels channels 00-09 will free interference amateur stations engaged point-to-point communications However equipment used point-topoint communication fully frequency agile entirely possible operator engaged communications stray area above 508 MHz Propagation six-meter band normally line-of-sight However ionospheric conditions will occasionally support brief periods long distance skip TEE STRIPS SELF ADHESIVE SANDING STRIP FOR USE WITH ALL /A14 TEE-BAR PRODUCTS 3 x 5 yds continuous roll Cut length Adheres surfaces Clean neat Available assorted grits No messy glue drying time Unroll length cut & apply Instantly ready sanding No132G 100180 280 Garnet $595 25 Load Free Silicon Carbide $660 Add 20% postage Send 500 catalog k Applied Design Co P 0 Box 3384 Torrance CA 90510 2 volt ci motor pictured out Fox 74 motor prrn power reliability have expect Fox motors BUY SMART BUY AMERICAN BUY FOX VV FOX FOX MANUFACTURING COMPANY 5305 TOWSON AVENUE FORT SMITH ARKANSAS 72901 PHONE 501 646-1656 501 646-1757 February 1995 39 LDM Industries Ball Bearing Servo Conversion Kits can upgrade standard servos ball bearing servos just minutes less cost 1 ball bearingservoyou can upgrade4 standard servos Futaba Kit Fits S28 538 S48 5128 S138 5148 Cirrus CS28 CS128 CS238 CS248 servos #9600 4 pack 95 #96101 pack 5 Aliftonics Kit Fits 94102 standard servo #9700 4 pack$2995 #9710 1 pack$795 Univeisal Kit Fits]R501 &507Focus HS300 RCDO5 Tower TE-SI Hobbico CS-51 Ace 330 19800 4 pack$2095 #98101 pack$595 Other Great Products LDM Part #8000 STRONGBOX$795 Part #8100 STRONGBOX II$1195 Part #9500 NO-HEAT Trim Solvent$695 1 Select correct propeller size following engine manufacturers recommendation 2 Before using plastic props remove flash along edges propeller scraping pocket knife 3 Install propeller using correct nut washer airfoil side forward securely tighten wrench Recheck after flight 4 Only use chicken stick electric starter start engine make adjust ments behind engine 5 Keep spectators least 20 feet away out path rotating propeller order send check money order including $300 S & H LDI Industries Inc PO Box 292396 Dept 2 Tampa FL 336872396 Phone 8139914277 Fax 813991-4810 Florida residents add 61/2% sales tax VISA and MASTER CARD Accepted @1993 LDM Industries Inc 6 Wear safety glasses hand protection operating model engines DO NOT permit objects touch turning pro peller Remain clear propeller arc 7 To stop engine cut off fuel supply accordance manufacturers instruc tions case DO NOT stop pro peller hand other object 8 Inspect propeller after flight Dis card propeller has nicks scratches other visible defect DO NOT repair alter way modify propeller 9 Propeller tips should painted order increase visibility turning rotating propeller can cause serious personal injury FOLLOW THESE INSTRUCTIONS CAREFULLY Windsor Propeller Co / 3219 Monier Circle / Rancho Cordova CA / 95742 * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $299 Cat No 202 Air Cleaner Fine $299 Replacement Inserts Cat No 104 PkI2 Inserts Coarse $239 Cat No 204 Pk/2 Inserts Fine 239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc POBox3756CenrerLineMichigan4lOl5 lAdd $250 shipping igan residents add 4% sales taxI communications band openings occur number stations air increases dramatically time time amateur organizations sponsor operating contests include six-meter band object usually make contact stations areas possible During band openings contests band occupancy high band tends fill up bottom Stations move higher frequency find clear channel entirely possible heat competition such niceties band plan RC channels may forgotten ignored unlikely will ever experience interference distant station due skip propagation local station working skip legal limit 1500 watts peak envelope power another matter Understanding environment no guarantee will never experience interference other amateur activities six meters never have dont know anyone has some potential exists opinion of us black flag fliers less likely experience interference six meters 72 MHz However intend fly RC six meters essential understand band being used fellow amateurs area local ham club good source information QST monthly magazine published ARRL will keep up-todate FCC rules band plans contests operating practices may have some effect RC operations intend avail yourself benefits ham radio other RC urge join participate both local ham club ARRL much less apt experience accidental interference local hams know activities Offer conduct program RC meetings ARRL has some control over destiny ham RC operations need voices within membership willing speak up NEW ONLY $2695 McS MODEL PLANE CADDY Fats aU single wiag planes body widths upto S 114 wing widths up aU landing gear conflgnrations Also available biwing style bodywidths up toS t/4 Siagh Wing$2695FREE BiWing$3195shipping handling SD cNEcK oft hioNEY ORDER AND SUIPHNG INFORMATION I~ MeS CADDYS PO nOX 185 RAEFORD NC 28376 40 Model Aviation 4I Eliminates wobble output shaft Reduces control response deadband Reduces chance flutter Improves control surface centering Allows use pull-pull cables Extends life servos PROPELLER SAFETY MESSAGE safety precautions designed enhance enjoyment model flying should part modelers routine both flying site workshop THE ULTIMATE RACK POR MELD CARRYING AND sTaRAun __________________PAT PBNDJ RC matters no substitute firsthand experience Try arrange use some type communications receiver covers six meters Most fairly inexpensive scanning receivers such sold Radio Shack include sixmeter band Typically FM receivers will copy repeaters other FM stations AM single-sideband digital stations will audible understandable Spend much time can listening various times day possible take receiver out field normal flying days listen listen youll learn ham radio Does ham license have potential increase enjoyment model aviation past fewer RC frequencies available non-hams exclusive channels available black flag fliers object considerable envy availability fifty 72 MHz channels has shortened wait pin model airports However some larger fly-ins six-meter users still enjoy slight advantage Free flight fliers often have look airplanes after successful flights ham free fighters equip models miniature radio beacons use simple direction-finding equipment facilitate recovery Ham radio has used transmit signals TV cameras carried model aircraft Experimenters advanced modelers may interested use ham radio telemetryreceiving data airspeed altitude rpm like models AMA technical team investigating interference potential RC operation occasioned FCC proposal NPRM 92-235 used amateur radio frequencies control aircraft used experiments Modeling-related communications can also important Most model airports have no telephone using hand-held radio local radio clubs two-meter L T-ON OWEN LESS HASSLE MORE FUN Dieselize Davis Diesel Its Awesome kHuo DAVIS MODeL PRODUCTS Devis Diesel Heads Over 100 models Irma 04936 cv Wadds largest preducer Medal Easel Fuek HOLIDAY SPECIAL rf $29951 1211III*%1iIM] Airborne Video Excitement Other Mobile Uses cameraTransmisier Range2000 feet Line sight Transmitter Size1250 x 1250 x 400 Weight5 ounce CameraSize181 2x 17345 x 980 Weight1 ounce Video 8OO2OODOS VISA A~A7D Order Yours Today Super Dou6er II Clipped Wing Version Designed Brad Shepherd wood Premium Quality Hand-Cut Kit Ku daeure Pee-Cut Machined Balsa & Lite Ply Pails Built Up nalsa Lite Ply Construction Two Sheets Full-Size Rolled Plans Extensive Hardware Package Pre-Bent Landing Gear Wire C Extremely aerobatic yet capable slow predictable flight Model Specifwavvons Wing Span 51 Inches wing Area 517 Sq Weight 4 3/4-5 1/4 lbs Recommended Radio Four Channel Recommended Engine 45-50 Four Stroke Spoil 40 Two Cycle Make Check Money Order out LINUK MODELS Add $450 S&H Mans Residents add\ / 5%Tax $425 LINCK MODELS Dept MA 141 Moulton Hill Road Monnon MA 01057 t413 267-9545 February 1995 41 4 50% Power Same Easy Starting No Glow Plugs Runs llvice Long Scale Sound PO Box 141 ord CT 06460 077-1670 complete cots/ag send selfaddressed 7S stamped #10 envelope & $3 credited te tot order MICRO-ELECTRIC ICRO-JET Ducted-Fan System Package Entire module weighs just 26 grams ounee thrust Flies models 6060 sq up 3 oz System Peetisge includes motor 3s 5OmAh Nid battery wiring harness charger pans complete Instructions build tan module MICROJETSJstm 1 flTWIN MICRO-JET System $2695 Plea acid 02 Se posaaaeandma id ernie repeater equipped autopatch ham can access telephone network call 911 will bring ambulance fire department need arises may simply want tell wife its great day flyinghold dinner until dark couple hams hand-held radios can simplify management long flight line parking area busy fly-in several on-the-air round tables meet regularly bit hangar flying via ham radio operate lower long-distance frequencies available Technician licensee some larger metropolitan areas will find nets operating local repeaters go RC flying originated ham bands hobbies RC flying ham radio will continue closely related Traditionally two hobbies have attracted same types individualstechnically inclined people driven experiment make things work radio equipment use today based technology developed amateurs likely next generation equipment will originate ham bands FCC under unrelenting pressure large powerful constituencies grant operating privileges increasing number users types radio equipment radio spectrum finite new user creates potential interference other users True clear channels no longer exist art RC modeling advancing giant steps flying heavy models speeds approach 200 mph magnificent Scale creations represent investments several thousand dollars several years work controlled best todays narrowband radios models can brought down spurious signal improperly maintained two-way radio passing car neighboring youngster new ARF discount toy store mixup pins frequency control board UNIQUEFree PLANS KITSCatalog Sd At4ea 1528 S KOELLER BOX 301W OSEKOSH WI 54951 uuv FOR THE MODELER! FREE /C14551 M304 6624538 CATALOG Choose Fmni Lage Selection OtShop Model & much morel tVIDEO TAPES ALSO 6.1 SAVE YOUR FIELD SNUF-LER muffler isa low cost easy install lightweight sound reducing muffler no performance penalty answer AMA muffler rule suggestions saving flying fields Meets AMA muffler rule suggestions SNUF-FLERM 3 10 decibels quieter stock muffler MUFFLER No power loss possible 300-500 RPM increase Pnted Improves engine idle s better fuel economy Easily attached 25-108 stock mufflers Heat corrosion resistant Black E coat finish No special adapters required weighs 35 oza Fits ASP BRAT ENYA FOX HP IRVINE K & B OS MAX ROYAL VS SUPER TIGRE mufflers available hobby shop ORDER DIRECT tor immediate shipment Check MO. Vioa MC COD SEND 250 STAMP accepted Add $250 UPS $200 COD 6% sales tax FOR ADDITIONAL INFO tsr CsliI residentAND JTEC CATALOG February 1995 43 8-BALL SPECIAL Giant Sport its Best premium quality wood & foam kit containing hand cut balsa ply parts f/ cowl aluminum landing gear canopy foam wing cores rolled plans Extremely aerobatic yet capable slow solid flight Span 85 Weight 175 lbs1 Intro Price $19995Area 1367 Length 63 S26955Power G38/042 similar Reids Quality Model Products 16 Main Street Phelps New York 14532 Catalog SLOO 3155483779 American Made 2 $2495 CAT NO BOO Some known basic technologies can provide radios vastly improved resistance interference What needed reduction practice demonstration testing actual operating environments Radio amateurs have historically demonstrated ability type thing FCC regulations encourage type experimentation ham bands promising long-term technology seems spread spectrum allows stations use same frequencies simultaneously mutual interference type emission already authorized some ham bands Short-term solutions may involve such well-known concepts frequency diversity present frequency assignments narrow-band radios result leadership dedication AMA AMA can should take leadership role solving interference problem through technical advance AMA can set goals coordinate activities experimenters provide liaison ARRL RCMA FCC other concerned parties Perhaps AMA can provide test equipment some funding sample demonstration hardware Spectrum pollution going get worse time marches going have radios need survive time action now can expect hams part Happy landings 73 Thanks Warren Plohr W8IAH made important contributions article Technical review Bob Underwood Robert Johnson AA4L Box 4099 Calabash NC 28467 oz 25 $1 O5IYd 2 oz 38 14 oz 44 $135IYd 3 oz 50 14 oz 50 $15OIYd 32 oz 50 FIBERGL4SS SUPER SALE Limited Quantities Prices Plain Weave Epoxy Finish Minimum Purchase 10 Yds $1 6OIYd $200/Yd $2OOIYd Satin Weave 316 oz 38 $25OIYd Bolt prices $075 $15OIYd CLUBS MANUFACIURERS & DEALERS WELCOME osite Structures Technology _____________________ P 0 Box 642 Dept JI Tehachapi CA 93581 Order Desk 1400438-1278 ' REPORT CARD ON HINGES After ten years everybody thinks schools out hinges Lets grade competition see needs classes EASY HINES- TM What look CA hinge Experience no can match SIGs 10 years development use HingeCorrect thickness achieve balance between strength durability flexibility ease assembly No holes slots weaken hinge Special surface treatment secure grip facing comes off hinge will come out Facing Thin easy insert hinge Treated C wicks across whole hinge wood Processed retard CA cure time correct mistake just surface bonds ALL surface bonds MATERIALS THAT REALLY WORK EVERY TIME FOR LONG liME Dont depend lucA depend SIG EASY HINGES first still best name CA hinges Hinges rather ordinary item critical life model Dont save buck hinges crash buy use SIG EASY HINGES confidence SIG Easy Hinges DB D GP B C F GB SH-710 Pkp 24- S29b Materials Total Thickness HingeThicknessAAAABAB TearStrengthAAAABAB A A F n A F n B fl4 F F D F F C4 D F Surface Treatment floknintinrj Stronnth Slots Holes Glue Action Wickina DelayedCureACCFFFF BC CCAverage Grade SIG MFG CO INC 401-7 So Front St Montezuma IA 50171 623-5154 February 1995 45 LIGHTING SYSTEMS THE ORIGINALS. Still Best RAM 01Adj Flash Nay Lights 9V NEW 94 span w/ wing light conn$2995 RAM 02Strobe Light 9V adjustable flash rate 1995 3995 RAM 03Landing Lights 48V receiver controlled RAM 04Mars Rotating Beacon 9V adjustable rate1995 RAM 05Marine Navigation Lights 9V non flashing1095 RAM 06Sky Lights 18 Light Set 72-9V best way fly night2495 RAM 14Big Airplane Navigation Lights 9V 168 span non flashing2495 RAM 16Econo Landing Lights 9V servo controlled brightest1995 RAM 23Real Strobe Light 3V brightest2995 RAM 65 T6 Lg Scale Lighting 72-9V Comb #s 04 14 & 16 100 span 5995 SEE YOUR DEALERS SEND STAMPED ENVELOPE FOR RAM iNFO if unavailabie iocaiiy send check money order fuli credit card info cost item plus $4 DO l$5 00 foreignl br immediate shipnent include fuli address br UPS Sorry no COD cRam 229C E Rollins Rd d Lake Beach IL 60073 ST F D D F D
Edition: Model Aviation - 1995/02
Page Numbers: 35, 37, 38, 39, 40, 41, 43, 45
Recen t changes amateur radio regulations can put ham license within easy reach almost anyone RC fliers have taken advantage new licensing regulations thinking about Discussions club meetings fly-ins have convinced new prospective hams have clear understanding rules practices relating remote control model craft Federal Communications Commission terminology via amateur radio six-meter old-timers active other phases ham radio aware newer types non-RC activities six-meter band Club officers contest direct ors have responsibility frequency control compliance AMA Safety Code Radio Control Utilization Plan seem singularly unin formed what con stitutes legal six-meter oper ation article represents effort part change First few definitions Part 97 subpart FCC regulations defines amateur service radio communication service purpose self-training intercommunication technical investigations carried out amateurs duly authorized persons interested radio technique solely personal aim pecuniary interest An amateur operator defined person holding written authorization control operator amateur radio station written authorization amateur license amateur license actually has two partsan operators license station license FCC assigns call sign amateur station five classes operator licenses different classes licenses convey different operating privileges require demonstration different skill levels no-code license February 1991 FCC eliminated Morse code test examination Technician class amateur radio license Technician class license may now obtained simply passing 55-question multiple-choice written test amateur regulations amateur practices basic radio communications theory Technician license conveys full amateur privileges amateur frequencies above 30 MHz including six-meter band Amateur license exams conducted FCC-authorized volunteer examiners Check local ham club obtain exam schedule area American Radio Relay League ARRL 225 Main St Newington CT 06111 publishes complete study materials Technician license can put contact nearest ARRL-affiliated ham club clubs conduct licensing classes ARRL material contains need know exam simply isnt tough spend some time preparing Only simplest math required Regulations What RC privileges does FCC extend Technician licensee specific reference RC amateur reg-ulations contained subpart C regulations 972 15 Remote control model craft An amateur station trans mitting signals model craft may operated follows station iden tification procedure required transmissions directed model craft provided label indicating station call sign station licensees name address affixed station transmitter b control signals considered codes ciphers intended obscure meaning com munication c transmitter power must exceed 1 W Section excuses RC station re quirement ama teur station must period ically transmit its call sign via voice Morse code other authorized type emission Section b has regulations prohibit ham use codes ciphers regulations specifically define model craft believe FCC would look kindly use ham radio control full-scale airplane automobile Another regulation interest 979 states part license document photocopy thereof must personal possession licensee times person control operator station cited regulations should lay rest some myths concerning just what constitutes legal use amateur frequencies RC Part 4 AMA Radio Control Utilization Plan requires AMA event officials enforce Amateur Radio Operator licensing requirements sanctioned events experience seldom done usual excuse access Call Book February 1995 35 officials have no way determine licensed Regulation 979 plainly states no can legally operate amateur radio station unless has license personal possession Period Event officials should also verify transmitter labeling requirements 97215 met Violation of regulations can result criminal civil penalties Admittedly FCC enforcement agents unlikely visit fly-ins However FCC may well become involved should unfortunate incident occur Furthermore believe use amateur RC equipment contrary FCC regulations constitutes violation AMA safety code suspect may also negate some primary liability coverage provided homeowners umbrella policies have told event officials should know better its legal anyone fly six meters long licensed amateur turns transmitter off definitely no specific authorization regulations allow anyone licensed amateur operate hamband RC transmitter Rule 97115 does permit unlicensed persons under certain conditions participate amateur radio communications under immediate supervision licensed control operator However FCC issued ruling FCC 80-634 dated November 6 1980 97115 does apply RC operations no circumstances under unlicensed person may operate RC transmitter operating amateur frequencies Part 97 has completely rewritten since ruling issued language interest remains essentially unchanged Therefore ruling still effect has force law An unlicensed person cannot legally touch controls RC transmitter transmitting signals amateur frequencies As licensed amateur cannot hand transmitter unlicensed person purposes instruction demonstration buddy-box system transmits ham frequencies used both users must licensed amateurs thanks Technical Director Bob Underwood very kindly dug copy FCC ruling out voluminous files Frequencies Note no mention 97215 specific frequencies word about six meters 50 MHz 53 MHz other magic numbers come mind think about ham radio RC fact no specific frequencies channels designated FCC RC use no exclusive RC channels ham bands Regulations contained subpart D part 97 identify types radio frequency emissions may used various frequencies assigned amateur radio service regulations effectively prohibit types emissions used RC equipment frequencies below 501 MHz still leaves us quite bit room Todays radio technology makes RC control practical amateur bands 6 meters 2 meters 125 meters 70 centimeters 33 centimeters 23 centimeters Thats 1268 MHz spectrum space 20 kHz spacing room 6340 RC channels legal far FCC concerned course channels use amateurs purposes unrelated RC still plenty room available need Six-meter practices Le galities aside am aware RC activity using ham band other six-meter band sixmeter band includes frequencies between 50 54 MHz Ten RC channels eight two-color frequencies common use ten channels between 50800 50980 MHz channels spaced 20 kHz apart have assigned AMA RCMA channel numbers 00 09 Because channel spacing same now used 72 MHz use narrow-band receivers narrow-band formerly gold-stickered transmitters required field identification system same used 72 MHz except black rather red wind streamer used additional frequencies 53100 53200 53300 0 MHz Since frequencies 100 kHz apart narrow-band equipment required frequencies have assigned channel numbers identified field two-color wind streamer system top streamer black indicating use amateur frequency color second streamer indicates frequency See AMA Membership Manual details channel-marking systems other information AMA Radio Control Utilization Plan frequencies channels may used licensed amateurs control aircraft surface models History historical reasons present day six-meter frequency conventions immediate post-WW II period RC flying done hams no frequencies assigned FCC RC use anyone else very little manufactured RC equipment available hams built own FCC regulations technology available time made six meters principal band choice particular frequency ham used usually dictated whatever war surplus crystal could find junk box February 1995 37 Dark Yellow Orange Black White Silver Perfect Paint high quality part fuel proof paint combines convenience superb results Perfect Paint will cover dopes epoxies metals fiberglass plastic smooth hard mar resis tant finish will crack chip NOW AVAILABLE p~ucheveronihobbyiproductsN PO Box 2480 Sandusky Ohio 44870 Phone & Fax 419-797-2208 video enables beginner LU cover model th 25mb professional results Easy follow presentation Film Video Pioductions 512 847-1551 512 847-9104 $2995 -4- 300 5 & H 20 Summit Dr west wimberley TX 78676 little standardization frequencies few manufacturers Frequency coordination among fliers really problem since RC pilots very few quite far between gas tube super-regenerative receivers day did have sufticient selectivity allow simultaneous flights same field regardless frequency As state art progressed receivers became selective manufactured equipment became available RC fliers chose frequencies near 53 MHz upper end band avoid interference amateur stations engaged point-to-point communications lower end band communications stations avoided upper end band order avoid interference TV channel 2 54-60 MHz early television sets lacked selectivity advent RC superheterodyne receivers possible conduct RC flight time eventually hams AMA manufacturers agreed standardize eight 53 MHz frequencies simplify frequency coordination among fliers 100 kHz spacing appropriate capabilities early superhets 50 MHz channels came being because changes way amateurs use six-meter band addition traditional point-to-point communications via voice Morse code variety communication modes have come use Amateur repeater stations now widely used repeater station relays rebroadcasts signals other stations Repeater station antennas normally located mountaintops tall buildings towers repeaters may have effective communications range 100 miles Two amateurs six meters attempting communicate point-to-point using lowpowered hand-held mobile radios simple antennas would probably have communications range ten miles average terrain relaying signals through repeater range would dramatically extended Repeaters usually owned maintained ham clubs operate fixed frequencies FCC has authorized repeater stations operate frequencies between 51 54MHz FCC regulations micromanage ham bands Over years amateur community has demonstrated its ability keep its own house order FCC has wisely refrained creating lot rules does have resources enforce largely left up amateurs decide among themselves type activities conducted portions various ham bands no means simple task some central coordinating agency required ARRL has undertaken job has created band plans various ham bands ARRL amateur radio AMA model aviation two organizations arc similarly organized principal spokesman hobby provide similar services members except ARRL liability insurance business share somewhat similar problems amateur ARRL member ARRL member pleased decisions made ARRL no matter democratic decision-making process Sound familiar ARRL band plans have force law ARRL has no enforcement authority its band plans essentially gentlemens agreements However blatant disregard established operating conventions such specified band plans may well bring citation FCC under 97101 requires operations conducted accordance good engineering good amateur practice Deliberate malicious interference radio communication signal also prohibited 97101 Despite potential shortcomings band plans almost universally observed amateurs Newcomers may have never heard band plans quickly discover no talk operate out band plan segments 38 Model Aviation 4COLORS Flame Red Deep Red Sky Blue Deep Blue Midnight Blue Bright Yellow Cub Yellow J Complete Line Precision Bench Top MetalworKIng quipment MANUAL & CNC LATHES S SSORIES LOCAL PARTS Using 53 MHz 53 MHz RC frequencies included older ARRL six-meter band plans However FCC authorized repeater operations frequencies ARRL decided would best interests majority amateurs move preferred location RC operations 50800 MHz band segment change coordinated AMA occurred less simultaneously phased changes 72 MHz did away old two-color 72 MHz frequencies eventually resulted todays 50-channel environment 53 MHz channels no longer ARRL band plan However still included AMA Radio Control Utilization Plan RCUP still used ham fliers present amateur communication via repeater stations conducted amateur two-meter band 144-148 Mhz Almost location United States within communications range least two-meter repeater live coast very southeastern corner North Carolina can contact least dozen two-meter repeaters low-powered mobile radio no six-meter repeaters within communications range total 50 active six-meter repeaters southeastern states GA KY MS NC SC TN VA WV Thirteen repeaters transmit frequencies 10 kHz away 53 MHz RC frequencies can supply list repeater frequencies locations states Send businesssize SASE address end article eight states 13 areas 53 MHz frequencies may subject repeater interference depending capabilities RC receiver used location power level repeater very few cases areas may overlap two three frequencies might possibly affected states no problem finding 53 MHz frequency free interference similar situation prevails parts country southeast repeaters transmit 53 MHz frequencies output frequency listen 52 MHz frequencies input frequency may true regions RC users must avoid both input output frequencies repeaters Operation near input frequencies may result interference fixed mobile stations transmitting repeater Transmissions RC transmitter may interfere jam repeater very impolite will make repeater users very angry may result citation FCC under 97101 prevent repeaters interfering other coordinated FCC-recognized regional volunteer amateur organizations groups reliable source up-to-date information about repeater operations area Ask local radio club ARRL contact repeater coordinator area plan attend fly-in contest away home dont forget check repeater situation destination Six-meter repeaters pose little no problem RC operation 53 MHz frequencies arent very since operate fixed frequencies easy avoid careful using 53 MHz fields located near television transmitting sites TV channel 2 54-60 MHz Most TV stations have very high levels effective radiated power interference real possibility Using channels 00-09 Ideally 508 MHz channels channels 00-09 will free interference amateur stations engaged point-to-point communications However equipment used point-topoint communication fully frequency agile entirely possible operator engaged communications stray area above 508 MHz Propagation six-meter band normally line-of-sight However ionospheric conditions will occasionally support brief periods long distance skip TEE STRIPS SELF ADHESIVE SANDING STRIP FOR USE WITH ALL /A14 TEE-BAR PRODUCTS 3 x 5 yds continuous roll Cut length Adheres surfaces Clean neat Available assorted grits No messy glue drying time Unroll length cut & apply Instantly ready sanding No132G 100180 280 Garnet $595 25 Load Free Silicon Carbide $660 Add 20% postage Send 500 catalog k Applied Design Co P 0 Box 3384 Torrance CA 90510 2 volt ci motor pictured out Fox 74 motor prrn power reliability have expect Fox motors BUY SMART BUY AMERICAN BUY FOX VV FOX FOX MANUFACTURING COMPANY 5305 TOWSON AVENUE FORT SMITH ARKANSAS 72901 PHONE 501 646-1656 501 646-1757 February 1995 39 LDM Industries Ball Bearing Servo Conversion Kits can upgrade standard servos ball bearing servos just minutes less cost 1 ball bearingservoyou can upgrade4 standard servos Futaba Kit Fits S28 538 S48 5128 S138 5148 Cirrus CS28 CS128 CS238 CS248 servos #9600 4 pack 95 #96101 pack 5 Aliftonics Kit Fits 94102 standard servo #9700 4 pack$2995 #9710 1 pack$795 Univeisal Kit Fits]R501 &507Focus HS300 RCDO5 Tower TE-SI Hobbico CS-51 Ace 330 19800 4 pack$2095 #98101 pack$595 Other Great Products LDM Part #8000 STRONGBOX$795 Part #8100 STRONGBOX II$1195 Part #9500 NO-HEAT Trim Solvent$695 1 Select correct propeller size following engine manufacturers recommendation 2 Before using plastic props remove flash along edges propeller scraping pocket knife 3 Install propeller using correct nut washer airfoil side forward securely tighten wrench Recheck after flight 4 Only use chicken stick electric starter start engine make adjust ments behind engine 5 Keep spectators least 20 feet away out path rotating propeller order send check money order including $300 S & H LDI Industries Inc PO Box 292396 Dept 2 Tampa FL 336872396 Phone 8139914277 Fax 813991-4810 Florida residents add 61/2% sales tax VISA and MASTER CARD Accepted @1993 LDM Industries Inc 6 Wear safety glasses hand protection operating model engines DO NOT permit objects touch turning pro peller Remain clear propeller arc 7 To stop engine cut off fuel supply accordance manufacturers instruc tions case DO NOT stop pro peller hand other object 8 Inspect propeller after flight Dis card propeller has nicks scratches other visible defect DO NOT repair alter way modify propeller 9 Propeller tips should painted order increase visibility turning rotating propeller can cause serious personal injury FOLLOW THESE INSTRUCTIONS CAREFULLY Windsor Propeller Co / 3219 Monier Circle / Rancho Cordova CA / 95742 * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $299 Cat No 202 Air Cleaner Fine $299 Replacement Inserts Cat No 104 PkI2 Inserts Coarse $239 Cat No 204 Pk/2 Inserts Fine 239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc POBox3756CenrerLineMichigan4lOl5 lAdd $250 shipping igan residents add 4% sales taxI communications band openings occur number stations air increases dramatically time time amateur organizations sponsor operating contests include six-meter band object usually make contact stations areas possible During band openings contests band occupancy high band tends fill up bottom Stations move higher frequency find clear channel entirely possible heat competition such niceties band plan RC channels may forgotten ignored unlikely will ever experience interference distant station due skip propagation local station working skip legal limit 1500 watts peak envelope power another matter Understanding environment no guarantee will never experience interference other amateur activities six meters never have dont know anyone has some potential exists opinion of us black flag fliers less likely experience interference six meters 72 MHz However intend fly RC six meters essential understand band being used fellow amateurs area local ham club good source information QST monthly magazine published ARRL will keep up-todate FCC rules band plans contests operating practices may have some effect RC operations intend avail yourself benefits ham radio other RC urge join participate both local ham club ARRL much less apt experience accidental interference local hams know activities Offer conduct program RC meetings ARRL has some control over destiny ham RC operations need voices within membership willing speak up NEW ONLY $2695 McS MODEL PLANE CADDY Fats aU single wiag planes body widths upto S 114 wing widths up aU landing gear conflgnrations Also available biwing style bodywidths up toS t/4 Siagh Wing$2695FREE BiWing$3195shipping handling SD cNEcK oft hioNEY ORDER AND SUIPHNG INFORMATION I~ MeS CADDYS PO nOX 185 RAEFORD NC 28376 40 Model Aviation 4I Eliminates wobble output shaft Reduces control response deadband Reduces chance flutter Improves control surface centering Allows use pull-pull cables Extends life servos PROPELLER SAFETY MESSAGE safety precautions designed enhance enjoyment model flying should part modelers routine both flying site workshop THE ULTIMATE RACK POR MELD CARRYING AND sTaRAun __________________PAT PBNDJ RC matters no substitute firsthand experience Try arrange use some type communications receiver covers six meters Most fairly inexpensive scanning receivers such sold Radio Shack include sixmeter band Typically FM receivers will copy repeaters other FM stations AM single-sideband digital stations will audible understandable Spend much time can listening various times day possible take receiver out field normal flying days listen listen youll learn ham radio Does ham license have potential increase enjoyment model aviation past fewer RC frequencies available non-hams exclusive channels available black flag fliers object considerable envy availability fifty 72 MHz channels has shortened wait pin model airports However some larger fly-ins six-meter users still enjoy slight advantage Free flight fliers often have look airplanes after successful flights ham free fighters equip models miniature radio beacons use simple direction-finding equipment facilitate recovery Ham radio has used transmit signals TV cameras carried model aircraft Experimenters advanced modelers may interested use ham radio telemetryreceiving data airspeed altitude rpm like models AMA technical team investigating interference potential RC operation occasioned FCC proposal NPRM 92-235 used amateur radio frequencies control aircraft used experiments Modeling-related communications can also important Most model airports have no telephone using hand-held radio local radio clubs two-meter L T-ON OWEN LESS HASSLE MORE FUN Dieselize Davis Diesel Its Awesome kHuo DAVIS MODeL PRODUCTS Devis Diesel Heads Over 100 models Irma 04936 cv Wadds largest preducer Medal Easel Fuek HOLIDAY SPECIAL rf $29951 1211III*%1iIM] Airborne Video Excitement Other Mobile Uses cameraTransmisier Range2000 feet Line sight Transmitter Size1250 x 1250 x 400 Weight5 ounce CameraSize181 2x 17345 x 980 Weight1 ounce Video 8OO2OODOS VISA A~A7D Order Yours Today Super Dou6er II Clipped Wing Version Designed Brad Shepherd wood Premium Quality Hand-Cut Kit Ku daeure Pee-Cut Machined Balsa & Lite Ply Pails Built Up nalsa Lite Ply Construction Two Sheets Full-Size Rolled Plans Extensive Hardware Package Pre-Bent Landing Gear Wire C Extremely aerobatic yet capable slow predictable flight Model Specifwavvons Wing Span 51 Inches wing Area 517 Sq Weight 4 3/4-5 1/4 lbs Recommended Radio Four Channel Recommended Engine 45-50 Four Stroke Spoil 40 Two Cycle Make Check Money Order out LINUK MODELS Add $450 S&H Mans Residents add\ / 5%Tax $425 LINCK MODELS Dept MA 141 Moulton Hill Road Monnon MA 01057 t413 267-9545 February 1995 41 4 50% Power Same Easy Starting No Glow Plugs Runs llvice Long Scale Sound PO Box 141 ord CT 06460 077-1670 complete cots/ag send selfaddressed 7S stamped #10 envelope & $3 credited te tot order MICRO-ELECTRIC ICRO-JET Ducted-Fan System Package Entire module weighs just 26 grams ounee thrust Flies models 6060 sq up 3 oz System Peetisge includes motor 3s 5OmAh Nid battery wiring harness charger pans complete Instructions build tan module MICROJETSJstm 1 flTWIN MICRO-JET System $2695 Plea acid 02 Se posaaaeandma id ernie repeater equipped autopatch ham can access telephone network call 911 will bring ambulance fire department need arises may simply want tell wife its great day flyinghold dinner until dark couple hams hand-held radios can simplify management long flight line parking area busy fly-in several on-the-air round tables meet regularly bit hangar flying via ham radio operate lower long-distance frequencies available Technician licensee some larger metropolitan areas will find nets operating local repeaters go RC flying originated ham bands hobbies RC flying ham radio will continue closely related Traditionally two hobbies have attracted same types individualstechnically inclined people driven experiment make things work radio equipment use today based technology developed amateurs likely next generation equipment will originate ham bands FCC under unrelenting pressure large powerful constituencies grant operating privileges increasing number users types radio equipment radio spectrum finite new user creates potential interference other users True clear channels no longer exist art RC modeling advancing giant steps flying heavy models speeds approach 200 mph magnificent Scale creations represent investments several thousand dollars several years work controlled best todays narrowband radios models can brought down spurious signal improperly maintained two-way radio passing car neighboring youngster new ARF discount toy store mixup pins frequency control board UNIQUEFree PLANS KITSCatalog Sd At4ea 1528 S KOELLER BOX 301W OSEKOSH WI 54951 uuv FOR THE MODELER! FREE /C14551 M304 6624538 CATALOG Choose Fmni Lage Selection OtShop Model & much morel tVIDEO TAPES ALSO 6.1 SAVE YOUR FIELD SNUF-LER muffler isa low cost easy install lightweight sound reducing muffler no performance penalty answer AMA muffler rule suggestions saving flying fields Meets AMA muffler rule suggestions SNUF-FLERM 3 10 decibels quieter stock muffler MUFFLER No power loss possible 300-500 RPM increase Pnted Improves engine idle s better fuel economy Easily attached 25-108 stock mufflers Heat corrosion resistant Black E coat finish No special adapters required weighs 35 oza Fits ASP BRAT ENYA FOX HP IRVINE K & B OS MAX ROYAL VS SUPER TIGRE mufflers available hobby shop ORDER DIRECT tor immediate shipment Check MO. Vioa MC COD SEND 250 STAMP accepted Add $250 UPS $200 COD 6% sales tax FOR ADDITIONAL INFO tsr CsliI residentAND JTEC CATALOG February 1995 43 8-BALL SPECIAL Giant Sport its Best premium quality wood & foam kit containing hand cut balsa ply parts f/ cowl aluminum landing gear canopy foam wing cores rolled plans Extremely aerobatic yet capable slow solid flight Span 85 Weight 175 lbs1 Intro Price $19995Area 1367 Length 63 S26955Power G38/042 similar Reids Quality Model Products 16 Main Street Phelps New York 14532 Catalog SLOO 3155483779 American Made 2 $2495 CAT NO BOO Some known basic technologies can provide radios vastly improved resistance interference What needed reduction practice demonstration testing actual operating environments Radio amateurs have historically demonstrated ability type thing FCC regulations encourage type experimentation ham bands promising long-term technology seems spread spectrum allows stations use same frequencies simultaneously mutual interference type emission already authorized some ham bands Short-term solutions may involve such well-known concepts frequency diversity present frequency assignments narrow-band radios result leadership dedication AMA AMA can should take leadership role solving interference problem through technical advance AMA can set goals coordinate activities experimenters provide liaison ARRL RCMA FCC other concerned parties Perhaps AMA can provide test equipment some funding sample demonstration hardware Spectrum pollution going get worse time marches going have radios need survive time action now can expect hams part Happy landings 73 Thanks Warren Plohr W8IAH made important contributions article Technical review Bob Underwood Robert Johnson AA4L Box 4099 Calabash NC 28467 oz 25 $1 O5IYd 2 oz 38 14 oz 44 $135IYd 3 oz 50 14 oz 50 $15OIYd 32 oz 50 FIBERGL4SS SUPER SALE Limited Quantities Prices Plain Weave Epoxy Finish Minimum Purchase 10 Yds $1 6OIYd $200/Yd $2OOIYd Satin Weave 316 oz 38 $25OIYd Bolt prices $075 $15OIYd CLUBS MANUFACIURERS & DEALERS WELCOME osite Structures Technology _____________________ P 0 Box 642 Dept JI Tehachapi CA 93581 Order Desk 1400438-1278 ' REPORT CARD ON HINGES After ten years everybody thinks schools out hinges Lets grade competition see needs classes EASY HINES- TM What look CA hinge Experience no can match SIGs 10 years development use HingeCorrect thickness achieve balance between strength durability flexibility ease assembly No holes slots weaken hinge Special surface treatment secure grip facing comes off hinge will come out Facing Thin easy insert hinge Treated C wicks across whole hinge wood Processed retard CA cure time correct mistake just surface bonds ALL surface bonds MATERIALS THAT REALLY WORK EVERY TIME FOR LONG liME Dont depend lucA depend SIG EASY HINGES first still best name CA hinges Hinges rather ordinary item critical life model Dont save buck hinges crash buy use SIG EASY HINGES confidence SIG Easy Hinges DB D GP B C F GB SH-710 Pkp 24- S29b Materials Total Thickness HingeThicknessAAAABAB TearStrengthAAAABAB A A F n A F n B fl4 F F D F F C4 D F Surface Treatment floknintinrj Stronnth Slots Holes Glue Action Wickina DelayedCureACCFFFF BC CCAverage Grade SIG MFG CO INC 401-7 So Front St Montezuma IA 50171 623-5154 February 1995 45 LIGHTING SYSTEMS THE ORIGINALS. Still Best RAM 01Adj Flash Nay Lights 9V NEW 94 span w/ wing light conn$2995 RAM 02Strobe Light 9V adjustable flash rate 1995 3995 RAM 03Landing Lights 48V receiver controlled RAM 04Mars Rotating Beacon 9V adjustable rate1995 RAM 05Marine Navigation Lights 9V non flashing1095 RAM 06Sky Lights 18 Light Set 72-9V best way fly night2495 RAM 14Big Airplane Navigation Lights 9V 168 span non flashing2495 RAM 16Econo Landing Lights 9V servo controlled brightest1995 RAM 23Real Strobe Light 3V brightest2995 RAM 65 T6 Lg Scale Lighting 72-9V Comb #s 04 14 & 16 100 span 5995 SEE YOUR DEALERS SEND STAMPED ENVELOPE FOR RAM iNFO if unavailabie iocaiiy send check money order fuli credit card info cost item plus $4 DO l$5 00 foreignl br immediate shipnent include fuli address br UPS Sorry no COD cRam 229C E Rollins Rd d Lake Beach IL 60073 ST F D D F D
Edition: Model Aviation - 1995/02
Page Numbers: 35, 37, 38, 39, 40, 41, 43, 45
Recen t changes amateur radio regulations can put ham license within easy reach almost anyone RC fliers have taken advantage new licensing regulations thinking about Discussions club meetings fly-ins have convinced new prospective hams have clear understanding rules practices relating remote control model craft Federal Communications Commission terminology via amateur radio six-meter old-timers active other phases ham radio aware newer types non-RC activities six-meter band Club officers contest direct ors have responsibility frequency control compliance AMA Safety Code Radio Control Utilization Plan seem singularly unin formed what con stitutes legal six-meter oper ation article represents effort part change First few definitions Part 97 subpart FCC regulations defines amateur service radio communication service purpose self-training intercommunication technical investigations carried out amateurs duly authorized persons interested radio technique solely personal aim pecuniary interest An amateur operator defined person holding written authorization control operator amateur radio station written authorization amateur license amateur license actually has two partsan operators license station license FCC assigns call sign amateur station five classes operator licenses different classes licenses convey different operating privileges require demonstration different skill levels no-code license February 1991 FCC eliminated Morse code test examination Technician class amateur radio license Technician class license may now obtained simply passing 55-question multiple-choice written test amateur regulations amateur practices basic radio communications theory Technician license conveys full amateur privileges amateur frequencies above 30 MHz including six-meter band Amateur license exams conducted FCC-authorized volunteer examiners Check local ham club obtain exam schedule area American Radio Relay League ARRL 225 Main St Newington CT 06111 publishes complete study materials Technician license can put contact nearest ARRL-affiliated ham club clubs conduct licensing classes ARRL material contains need know exam simply isnt tough spend some time preparing Only simplest math required Regulations What RC privileges does FCC extend Technician licensee specific reference RC amateur reg-ulations contained subpart C regulations 972 15 Remote control model craft An amateur station trans mitting signals model craft may operated follows station iden tification procedure required transmissions directed model craft provided label indicating station call sign station licensees name address affixed station transmitter b control signals considered codes ciphers intended obscure meaning com munication c transmitter power must exceed 1 W Section excuses RC station re quirement ama teur station must period ically transmit its call sign via voice Morse code other authorized type emission Section b has regulations prohibit ham use codes ciphers regulations specifically define model craft believe FCC would look kindly use ham radio control full-scale airplane automobile Another regulation interest 979 states part license document photocopy thereof must personal possession licensee times person control operator station cited regulations should lay rest some myths concerning just what constitutes legal use amateur frequencies RC Part 4 AMA Radio Control Utilization Plan requires AMA event officials enforce Amateur Radio Operator licensing requirements sanctioned events experience seldom done usual excuse access Call Book February 1995 35 officials have no way determine licensed Regulation 979 plainly states no can legally operate amateur radio station unless has license personal possession Period Event officials should also verify transmitter labeling requirements 97215 met Violation of regulations can result criminal civil penalties Admittedly FCC enforcement agents unlikely visit fly-ins However FCC may well become involved should unfortunate incident occur Furthermore believe use amateur RC equipment contrary FCC regulations constitutes violation AMA safety code suspect may also negate some primary liability coverage provided homeowners umbrella policies have told event officials should know better its legal anyone fly six meters long licensed amateur turns transmitter off definitely no specific authorization regulations allow anyone licensed amateur operate hamband RC transmitter Rule 97115 does permit unlicensed persons under certain conditions participate amateur radio communications under immediate supervision licensed control operator However FCC issued ruling FCC 80-634 dated November 6 1980 97115 does apply RC operations no circumstances under unlicensed person may operate RC transmitter operating amateur frequencies Part 97 has completely rewritten since ruling issued language interest remains essentially unchanged Therefore ruling still effect has force law An unlicensed person cannot legally touch controls RC transmitter transmitting signals amateur frequencies As licensed amateur cannot hand transmitter unlicensed person purposes instruction demonstration buddy-box system transmits ham frequencies used both users must licensed amateurs thanks Technical Director Bob Underwood very kindly dug copy FCC ruling out voluminous files Frequencies Note no mention 97215 specific frequencies word about six meters 50 MHz 53 MHz other magic numbers come mind think about ham radio RC fact no specific frequencies channels designated FCC RC use no exclusive RC channels ham bands Regulations contained subpart D part 97 identify types radio frequency emissions may used various frequencies assigned amateur radio service regulations effectively prohibit types emissions used RC equipment frequencies below 501 MHz still leaves us quite bit room Todays radio technology makes RC control practical amateur bands 6 meters 2 meters 125 meters 70 centimeters 33 centimeters 23 centimeters Thats 1268 MHz spectrum space 20 kHz spacing room 6340 RC channels legal far FCC concerned course channels use amateurs purposes unrelated RC still plenty room available need Six-meter practices Le galities aside am aware RC activity using ham band other six-meter band sixmeter band includes frequencies between 50 54 MHz Ten RC channels eight two-color frequencies common use ten channels between 50800 50980 MHz channels spaced 20 kHz apart have assigned AMA RCMA channel numbers 00 09 Because channel spacing same now used 72 MHz use narrow-band receivers narrow-band formerly gold-stickered transmitters required field identification system same used 72 MHz except black rather red wind streamer used additional frequencies 53100 53200 53300 0 MHz Since frequencies 100 kHz apart narrow-band equipment required frequencies have assigned channel numbers identified field two-color wind streamer system top streamer black indicating use amateur frequency color second streamer indicates frequency See AMA Membership Manual details channel-marking systems other information AMA Radio Control Utilization Plan frequencies channels may used licensed amateurs control aircraft surface models History historical reasons present day six-meter frequency conventions immediate post-WW II period RC flying done hams no frequencies assigned FCC RC use anyone else very little manufactured RC equipment available hams built own FCC regulations technology available time made six meters principal band choice particular frequency ham used usually dictated whatever war surplus crystal could find junk box February 1995 37 Dark Yellow Orange Black White Silver Perfect Paint high quality part fuel proof paint combines convenience superb results Perfect Paint will cover dopes epoxies metals fiberglass plastic smooth hard mar resis tant finish will crack chip NOW AVAILABLE p~ucheveronihobbyiproductsN PO Box 2480 Sandusky Ohio 44870 Phone & Fax 419-797-2208 video enables beginner LU cover model th 25mb professional results Easy follow presentation Film Video Pioductions 512 847-1551 512 847-9104 $2995 -4- 300 5 & H 20 Summit Dr west wimberley TX 78676 little standardization frequencies few manufacturers Frequency coordination among fliers really problem since RC pilots very few quite far between gas tube super-regenerative receivers day did have sufticient selectivity allow simultaneous flights same field regardless frequency As state art progressed receivers became selective manufactured equipment became available RC fliers chose frequencies near 53 MHz upper end band avoid interference amateur stations engaged point-to-point communications lower end band communications stations avoided upper end band order avoid interference TV channel 2 54-60 MHz early television sets lacked selectivity advent RC superheterodyne receivers possible conduct RC flight time eventually hams AMA manufacturers agreed standardize eight 53 MHz frequencies simplify frequency coordination among fliers 100 kHz spacing appropriate capabilities early superhets 50 MHz channels came being because changes way amateurs use six-meter band addition traditional point-to-point communications via voice Morse code variety communication modes have come use Amateur repeater stations now widely used repeater station relays rebroadcasts signals other stations Repeater station antennas normally located mountaintops tall buildings towers repeaters may have effective communications range 100 miles Two amateurs six meters attempting communicate point-to-point using lowpowered hand-held mobile radios simple antennas would probably have communications range ten miles average terrain relaying signals through repeater range would dramatically extended Repeaters usually owned maintained ham clubs operate fixed frequencies FCC has authorized repeater stations operate frequencies between 51 54MHz FCC regulations micromanage ham bands Over years amateur community has demonstrated its ability keep its own house order FCC has wisely refrained creating lot rules does have resources enforce largely left up amateurs decide among themselves type activities conducted portions various ham bands no means simple task some central coordinating agency required ARRL has undertaken job has created band plans various ham bands ARRL amateur radio AMA model aviation two organizations arc similarly organized principal spokesman hobby provide similar services members except ARRL liability insurance business share somewhat similar problems amateur ARRL member ARRL member pleased decisions made ARRL no matter democratic decision-making process Sound familiar ARRL band plans have force law ARRL has no enforcement authority its band plans essentially gentlemens agreements However blatant disregard established operating conventions such specified band plans may well bring citation FCC under 97101 requires operations conducted accordance good engineering good amateur practice Deliberate malicious interference radio communication signal also prohibited 97101 Despite potential shortcomings band plans almost universally observed amateurs Newcomers may have never heard band plans quickly discover no talk operate out band plan segments 38 Model Aviation 4COLORS Flame Red Deep Red Sky Blue Deep Blue Midnight Blue Bright Yellow Cub Yellow J Complete Line Precision Bench Top MetalworKIng quipment MANUAL & CNC LATHES S SSORIES LOCAL PARTS Using 53 MHz 53 MHz RC frequencies included older ARRL six-meter band plans However FCC authorized repeater operations frequencies ARRL decided would best interests majority amateurs move preferred location RC operations 50800 MHz band segment change coordinated AMA occurred less simultaneously phased changes 72 MHz did away old two-color 72 MHz frequencies eventually resulted todays 50-channel environment 53 MHz channels no longer ARRL band plan However still included AMA Radio Control Utilization Plan RCUP still used ham fliers present amateur communication via repeater stations conducted amateur two-meter band 144-148 Mhz Almost location United States within communications range least two-meter repeater live coast very southeastern corner North Carolina can contact least dozen two-meter repeaters low-powered mobile radio no six-meter repeaters within communications range total 50 active six-meter repeaters southeastern states GA KY MS NC SC TN VA WV Thirteen repeaters transmit frequencies 10 kHz away 53 MHz RC frequencies can supply list repeater frequencies locations states Send businesssize SASE address end article eight states 13 areas 53 MHz frequencies may subject repeater interference depending capabilities RC receiver used location power level repeater very few cases areas may overlap two three frequencies might possibly affected states no problem finding 53 MHz frequency free interference similar situation prevails parts country southeast repeaters transmit 53 MHz frequencies output frequency listen 52 MHz frequencies input frequency may true regions RC users must avoid both input output frequencies repeaters Operation near input frequencies may result interference fixed mobile stations transmitting repeater Transmissions RC transmitter may interfere jam repeater very impolite will make repeater users very angry may result citation FCC under 97101 prevent repeaters interfering other coordinated FCC-recognized regional volunteer amateur organizations groups reliable source up-to-date information about repeater operations area Ask local radio club ARRL contact repeater coordinator area plan attend fly-in contest away home dont forget check repeater situation destination Six-meter repeaters pose little no problem RC operation 53 MHz frequencies arent very since operate fixed frequencies easy avoid careful using 53 MHz fields located near television transmitting sites TV channel 2 54-60 MHz Most TV stations have very high levels effective radiated power interference real possibility Using channels 00-09 Ideally 508 MHz channels channels 00-09 will free interference amateur stations engaged point-to-point communications However equipment used point-topoint communication fully frequency agile entirely possible operator engaged communications stray area above 508 MHz Propagation six-meter band normally line-of-sight However ionospheric conditions will occasionally support brief periods long distance skip TEE STRIPS SELF ADHESIVE SANDING STRIP FOR USE WITH ALL /A14 TEE-BAR PRODUCTS 3 x 5 yds continuous roll Cut length Adheres surfaces Clean neat Available assorted grits No messy glue drying time Unroll length cut & apply Instantly ready sanding No132G 100180 280 Garnet $595 25 Load Free Silicon Carbide $660 Add 20% postage Send 500 catalog k Applied Design Co P 0 Box 3384 Torrance CA 90510 2 volt ci motor pictured out Fox 74 motor prrn power reliability have expect Fox motors BUY SMART BUY AMERICAN BUY FOX VV FOX FOX MANUFACTURING COMPANY 5305 TOWSON AVENUE FORT SMITH ARKANSAS 72901 PHONE 501 646-1656 501 646-1757 February 1995 39 LDM Industries Ball Bearing Servo Conversion Kits can upgrade standard servos ball bearing servos just minutes less cost 1 ball bearingservoyou can upgrade4 standard servos Futaba Kit Fits S28 538 S48 5128 S138 5148 Cirrus CS28 CS128 CS238 CS248 servos #9600 4 pack 95 #96101 pack 5 Aliftonics Kit Fits 94102 standard servo #9700 4 pack$2995 #9710 1 pack$795 Univeisal Kit Fits]R501 &507Focus HS300 RCDO5 Tower TE-SI Hobbico CS-51 Ace 330 19800 4 pack$2095 #98101 pack$595 Other Great Products LDM Part #8000 STRONGBOX$795 Part #8100 STRONGBOX II$1195 Part #9500 NO-HEAT Trim Solvent$695 1 Select correct propeller size following engine manufacturers recommendation 2 Before using plastic props remove flash along edges propeller scraping pocket knife 3 Install propeller using correct nut washer airfoil side forward securely tighten wrench Recheck after flight 4 Only use chicken stick electric starter start engine make adjust ments behind engine 5 Keep spectators least 20 feet away out path rotating propeller order send check money order including $300 S & H LDI Industries Inc PO Box 292396 Dept 2 Tampa FL 336872396 Phone 8139914277 Fax 813991-4810 Florida residents add 61/2% sales tax VISA and MASTER CARD Accepted @1993 LDM Industries Inc 6 Wear safety glasses hand protection operating model engines DO NOT permit objects touch turning pro peller Remain clear propeller arc 7 To stop engine cut off fuel supply accordance manufacturers instruc tions case DO NOT stop pro peller hand other object 8 Inspect propeller after flight Dis card propeller has nicks scratches other visible defect DO NOT repair alter way modify propeller 9 Propeller tips should painted order increase visibility turning rotating propeller can cause serious personal injury FOLLOW THESE INSTRUCTIONS CAREFULLY Windsor Propeller Co / 3219 Monier Circle / Rancho Cordova CA / 95742 * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $299 Cat No 202 Air Cleaner Fine $299 Replacement Inserts Cat No 104 PkI2 Inserts Coarse $239 Cat No 204 Pk/2 Inserts Fine 239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc POBox3756CenrerLineMichigan4lOl5 lAdd $250 shipping igan residents add 4% sales taxI communications band openings occur number stations air increases dramatically time time amateur organizations sponsor operating contests include six-meter band object usually make contact stations areas possible During band openings contests band occupancy high band tends fill up bottom Stations move higher frequency find clear channel entirely possible heat competition such niceties band plan RC channels may forgotten ignored unlikely will ever experience interference distant station due skip propagation local station working skip legal limit 1500 watts peak envelope power another matter Understanding environment no guarantee will never experience interference other amateur activities six meters never have dont know anyone has some potential exists opinion of us black flag fliers less likely experience interference six meters 72 MHz However intend fly RC six meters essential understand band being used fellow amateurs area local ham club good source information QST monthly magazine published ARRL will keep up-todate FCC rules band plans contests operating practices may have some effect RC operations intend avail yourself benefits ham radio other RC urge join participate both local ham club ARRL much less apt experience accidental interference local hams know activities Offer conduct program RC meetings ARRL has some control over destiny ham RC operations need voices within membership willing speak up NEW ONLY $2695 McS MODEL PLANE CADDY Fats aU single wiag planes body widths upto S 114 wing widths up aU landing gear conflgnrations Also available biwing style bodywidths up toS t/4 Siagh Wing$2695FREE BiWing$3195shipping handling SD cNEcK oft hioNEY ORDER AND SUIPHNG INFORMATION I~ MeS CADDYS PO nOX 185 RAEFORD NC 28376 40 Model Aviation 4I Eliminates wobble output shaft Reduces control response deadband Reduces chance flutter Improves control surface centering Allows use pull-pull cables Extends life servos PROPELLER SAFETY MESSAGE safety precautions designed enhance enjoyment model flying should part modelers routine both flying site workshop THE ULTIMATE RACK POR MELD CARRYING AND sTaRAun __________________PAT PBNDJ RC matters no substitute firsthand experience Try arrange use some type communications receiver covers six meters Most fairly inexpensive scanning receivers such sold Radio Shack include sixmeter band Typically FM receivers will copy repeaters other FM stations AM single-sideband digital stations will audible understandable Spend much time can listening various times day possible take receiver out field normal flying days listen listen youll learn ham radio Does ham license have potential increase enjoyment model aviation past fewer RC frequencies available non-hams exclusive channels available black flag fliers object considerable envy availability fifty 72 MHz channels has shortened wait pin model airports However some larger fly-ins six-meter users still enjoy slight advantage Free flight fliers often have look airplanes after successful flights ham free fighters equip models miniature radio beacons use simple direction-finding equipment facilitate recovery Ham radio has used transmit signals TV cameras carried model aircraft Experimenters advanced modelers may interested use ham radio telemetryreceiving data airspeed altitude rpm like models AMA technical team investigating interference potential RC operation occasioned FCC proposal NPRM 92-235 used amateur radio frequencies control aircraft used experiments Modeling-related communications can also important Most model airports have no telephone using hand-held radio local radio clubs two-meter L T-ON OWEN LESS HASSLE MORE FUN Dieselize Davis Diesel Its Awesome kHuo DAVIS MODeL PRODUCTS Devis Diesel Heads Over 100 models Irma 04936 cv Wadds largest preducer Medal Easel Fuek HOLIDAY SPECIAL rf $29951 1211III*%1iIM] Airborne Video Excitement Other Mobile Uses cameraTransmisier Range2000 feet Line sight Transmitter Size1250 x 1250 x 400 Weight5 ounce CameraSize181 2x 17345 x 980 Weight1 ounce Video 8OO2OODOS VISA A~A7D Order Yours Today Super Dou6er II Clipped Wing Version Designed Brad Shepherd wood Premium Quality Hand-Cut Kit Ku daeure Pee-Cut Machined Balsa & Lite Ply Pails Built Up nalsa Lite Ply Construction Two Sheets Full-Size Rolled Plans Extensive Hardware Package Pre-Bent Landing Gear Wire C Extremely aerobatic yet capable slow predictable flight Model Specifwavvons Wing Span 51 Inches wing Area 517 Sq Weight 4 3/4-5 1/4 lbs Recommended Radio Four Channel Recommended Engine 45-50 Four Stroke Spoil 40 Two Cycle Make Check Money Order out LINUK MODELS Add $450 S&H Mans Residents add\ / 5%Tax $425 LINCK MODELS Dept MA 141 Moulton Hill Road Monnon MA 01057 t413 267-9545 February 1995 41 4 50% Power Same Easy Starting No Glow Plugs Runs llvice Long Scale Sound PO Box 141 ord CT 06460 077-1670 complete cots/ag send selfaddressed 7S stamped #10 envelope & $3 credited te tot order MICRO-ELECTRIC ICRO-JET Ducted-Fan System Package Entire module weighs just 26 grams ounee thrust Flies models 6060 sq up 3 oz System Peetisge includes motor 3s 5OmAh Nid battery wiring harness charger pans complete Instructions build tan module MICROJETSJstm 1 flTWIN MICRO-JET System $2695 Plea acid 02 Se posaaaeandma id ernie repeater equipped autopatch ham can access telephone network call 911 will bring ambulance fire department need arises may simply want tell wife its great day flyinghold dinner until dark couple hams hand-held radios can simplify management long flight line parking area busy fly-in several on-the-air round tables meet regularly bit hangar flying via ham radio operate lower long-distance frequencies available Technician licensee some larger metropolitan areas will find nets operating local repeaters go RC flying originated ham bands hobbies RC flying ham radio will continue closely related Traditionally two hobbies have attracted same types individualstechnically inclined people driven experiment make things work radio equipment use today based technology developed amateurs likely next generation equipment will originate ham bands FCC under unrelenting pressure large powerful constituencies grant operating privileges increasing number users types radio equipment radio spectrum finite new user creates potential interference other users True clear channels no longer exist art RC modeling advancing giant steps flying heavy models speeds approach 200 mph magnificent Scale creations represent investments several thousand dollars several years work controlled best todays narrowband radios models can brought down spurious signal improperly maintained two-way radio passing car neighboring youngster new ARF discount toy store mixup pins frequency control board UNIQUEFree PLANS KITSCatalog Sd At4ea 1528 S KOELLER BOX 301W OSEKOSH WI 54951 uuv FOR THE MODELER! FREE /C14551 M304 6624538 CATALOG Choose Fmni Lage Selection OtShop Model & much morel tVIDEO TAPES ALSO 6.1 SAVE YOUR FIELD SNUF-LER muffler isa low cost easy install lightweight sound reducing muffler no performance penalty answer AMA muffler rule suggestions saving flying fields Meets AMA muffler rule suggestions SNUF-FLERM 3 10 decibels quieter stock muffler MUFFLER No power loss possible 300-500 RPM increase Pnted Improves engine idle s better fuel economy Easily attached 25-108 stock mufflers Heat corrosion resistant Black E coat finish No special adapters required weighs 35 oza Fits ASP BRAT ENYA FOX HP IRVINE K & B OS MAX ROYAL VS SUPER TIGRE mufflers available hobby shop ORDER DIRECT tor immediate shipment Check MO. Vioa MC COD SEND 250 STAMP accepted Add $250 UPS $200 COD 6% sales tax FOR ADDITIONAL INFO tsr CsliI residentAND JTEC CATALOG February 1995 43 8-BALL SPECIAL Giant Sport its Best premium quality wood & foam kit containing hand cut balsa ply parts f/ cowl aluminum landing gear canopy foam wing cores rolled plans Extremely aerobatic yet capable slow solid flight Span 85 Weight 175 lbs1 Intro Price $19995Area 1367 Length 63 S26955Power G38/042 similar Reids Quality Model Products 16 Main Street Phelps New York 14532 Catalog SLOO 3155483779 American Made 2 $2495 CAT NO BOO Some known basic technologies can provide radios vastly improved resistance interference What needed reduction practice demonstration testing actual operating environments Radio amateurs have historically demonstrated ability type thing FCC regulations encourage type experimentation ham bands promising long-term technology seems spread spectrum allows stations use same frequencies simultaneously mutual interference type emission already authorized some ham bands Short-term solutions may involve such well-known concepts frequency diversity present frequency assignments narrow-band radios result leadership dedication AMA AMA can should take leadership role solving interference problem through technical advance AMA can set goals coordinate activities experimenters provide liaison ARRL RCMA FCC other concerned parties Perhaps AMA can provide test equipment some funding sample demonstration hardware Spectrum pollution going get worse time marches going have radios need survive time action now can expect hams part Happy landings 73 Thanks Warren Plohr W8IAH made important contributions article Technical review Bob Underwood Robert Johnson AA4L Box 4099 Calabash NC 28467 oz 25 $1 O5IYd 2 oz 38 14 oz 44 $135IYd 3 oz 50 14 oz 50 $15OIYd 32 oz 50 FIBERGL4SS SUPER SALE Limited Quantities Prices Plain Weave Epoxy Finish Minimum Purchase 10 Yds $1 6OIYd $200/Yd $2OOIYd Satin Weave 316 oz 38 $25OIYd Bolt prices $075 $15OIYd CLUBS MANUFACIURERS & DEALERS WELCOME osite Structures Technology _____________________ P 0 Box 642 Dept JI Tehachapi CA 93581 Order Desk 1400438-1278 ' REPORT CARD ON HINGES After ten years everybody thinks schools out hinges Lets grade competition see needs classes EASY HINES- TM What look CA hinge Experience no can match SIGs 10 years development use HingeCorrect thickness achieve balance between strength durability flexibility ease assembly No holes slots weaken hinge Special surface treatment secure grip facing comes off hinge will come out Facing Thin easy insert hinge Treated C wicks across whole hinge wood Processed retard CA cure time correct mistake just surface bonds ALL surface bonds MATERIALS THAT REALLY WORK EVERY TIME FOR LONG liME Dont depend lucA depend SIG EASY HINGES first still best name CA hinges Hinges rather ordinary item critical life model Dont save buck hinges crash buy use SIG EASY HINGES confidence SIG Easy Hinges DB D GP B C F GB SH-710 Pkp 24- S29b Materials Total Thickness HingeThicknessAAAABAB TearStrengthAAAABAB A A F n A F n B fl4 F F D F F C4 D F Surface Treatment floknintinrj Stronnth Slots Holes Glue Action Wickina DelayedCureACCFFFF BC CCAverage Grade SIG MFG CO INC 401-7 So Front St Montezuma IA 50171 623-5154 February 1995 45 LIGHTING SYSTEMS THE ORIGINALS. Still Best RAM 01Adj Flash Nay Lights 9V NEW 94 span w/ wing light conn$2995 RAM 02Strobe Light 9V adjustable flash rate 1995 3995 RAM 03Landing Lights 48V receiver controlled RAM 04Mars Rotating Beacon 9V adjustable rate1995 RAM 05Marine Navigation Lights 9V non flashing1095 RAM 06Sky Lights 18 Light Set 72-9V best way fly night2495 RAM 14Big Airplane Navigation Lights 9V 168 span non flashing2495 RAM 16Econo Landing Lights 9V servo controlled brightest1995 RAM 23Real Strobe Light 3V brightest2995 RAM 65 T6 Lg Scale Lighting 72-9V Comb #s 04 14 & 16 100 span 5995 SEE YOUR DEALERS SEND STAMPED ENVELOPE FOR RAM iNFO if unavailabie iocaiiy send check money order fuli credit card info cost item plus $4 DO l$5 00 foreignl br immediate shipnent include fuli address br UPS Sorry no COD cRam 229C E Rollins Rd d Lake Beach IL 60073 ST F D D F D
Edition: Model Aviation - 1995/02
Page Numbers: 35, 37, 38, 39, 40, 41, 43, 45
Recen t changes amateur radio regulations can put ham license within easy reach almost anyone RC fliers have taken advantage new licensing regulations thinking about Discussions club meetings fly-ins have convinced new prospective hams have clear understanding rules practices relating remote control model craft Federal Communications Commission terminology via amateur radio six-meter old-timers active other phases ham radio aware newer types non-RC activities six-meter band Club officers contest direct ors have responsibility frequency control compliance AMA Safety Code Radio Control Utilization Plan seem singularly unin formed what con stitutes legal six-meter oper ation article represents effort part change First few definitions Part 97 subpart FCC regulations defines amateur service radio communication service purpose self-training intercommunication technical investigations carried out amateurs duly authorized persons interested radio technique solely personal aim pecuniary interest An amateur operator defined person holding written authorization control operator amateur radio station written authorization amateur license amateur license actually has two partsan operators license station license FCC assigns call sign amateur station five classes operator licenses different classes licenses convey different operating privileges require demonstration different skill levels no-code license February 1991 FCC eliminated Morse code test examination Technician class amateur radio license Technician class license may now obtained simply passing 55-question multiple-choice written test amateur regulations amateur practices basic radio communications theory Technician license conveys full amateur privileges amateur frequencies above 30 MHz including six-meter band Amateur license exams conducted FCC-authorized volunteer examiners Check local ham club obtain exam schedule area American Radio Relay League ARRL 225 Main St Newington CT 06111 publishes complete study materials Technician license can put contact nearest ARRL-affiliated ham club clubs conduct licensing classes ARRL material contains need know exam simply isnt tough spend some time preparing Only simplest math required Regulations What RC privileges does FCC extend Technician licensee specific reference RC amateur reg-ulations contained subpart C regulations 972 15 Remote control model craft An amateur station trans mitting signals model craft may operated follows station iden tification procedure required transmissions directed model craft provided label indicating station call sign station licensees name address affixed station transmitter b control signals considered codes ciphers intended obscure meaning com munication c transmitter power must exceed 1 W Section excuses RC station re quirement ama teur station must period ically transmit its call sign via voice Morse code other authorized type emission Section b has regulations prohibit ham use codes ciphers regulations specifically define model craft believe FCC would look kindly use ham radio control full-scale airplane automobile Another regulation interest 979 states part license document photocopy thereof must personal possession licensee times person control operator station cited regulations should lay rest some myths concerning just what constitutes legal use amateur frequencies RC Part 4 AMA Radio Control Utilization Plan requires AMA event officials enforce Amateur Radio Operator licensing requirements sanctioned events experience seldom done usual excuse access Call Book February 1995 35 officials have no way determine licensed Regulation 979 plainly states no can legally operate amateur radio station unless has license personal possession Period Event officials should also verify transmitter labeling requirements 97215 met Violation of regulations can result criminal civil penalties Admittedly FCC enforcement agents unlikely visit fly-ins However FCC may well become involved should unfortunate incident occur Furthermore believe use amateur RC equipment contrary FCC regulations constitutes violation AMA safety code suspect may also negate some primary liability coverage provided homeowners umbrella policies have told event officials should know better its legal anyone fly six meters long licensed amateur turns transmitter off definitely no specific authorization regulations allow anyone licensed amateur operate hamband RC transmitter Rule 97115 does permit unlicensed persons under certain conditions participate amateur radio communications under immediate supervision licensed control operator However FCC issued ruling FCC 80-634 dated November 6 1980 97115 does apply RC operations no circumstances under unlicensed person may operate RC transmitter operating amateur frequencies Part 97 has completely rewritten since ruling issued language interest remains essentially unchanged Therefore ruling still effect has force law An unlicensed person cannot legally touch controls RC transmitter transmitting signals amateur frequencies As licensed amateur cannot hand transmitter unlicensed person purposes instruction demonstration buddy-box system transmits ham frequencies used both users must licensed amateurs thanks Technical Director Bob Underwood very kindly dug copy FCC ruling out voluminous files Frequencies Note no mention 97215 specific frequencies word about six meters 50 MHz 53 MHz other magic numbers come mind think about ham radio RC fact no specific frequencies channels designated FCC RC use no exclusive RC channels ham bands Regulations contained subpart D part 97 identify types radio frequency emissions may used various frequencies assigned amateur radio service regulations effectively prohibit types emissions used RC equipment frequencies below 501 MHz still leaves us quite bit room Todays radio technology makes RC control practical amateur bands 6 meters 2 meters 125 meters 70 centimeters 33 centimeters 23 centimeters Thats 1268 MHz spectrum space 20 kHz spacing room 6340 RC channels legal far FCC concerned course channels use amateurs purposes unrelated RC still plenty room available need Six-meter practices Le galities aside am aware RC activity using ham band other six-meter band sixmeter band includes frequencies between 50 54 MHz Ten RC channels eight two-color frequencies common use ten channels between 50800 50980 MHz channels spaced 20 kHz apart have assigned AMA RCMA channel numbers 00 09 Because channel spacing same now used 72 MHz use narrow-band receivers narrow-band formerly gold-stickered transmitters required field identification system same used 72 MHz except black rather red wind streamer used additional frequencies 53100 53200 53300 0 MHz Since frequencies 100 kHz apart narrow-band equipment required frequencies have assigned channel numbers identified field two-color wind streamer system top streamer black indicating use amateur frequency color second streamer indicates frequency See AMA Membership Manual details channel-marking systems other information AMA Radio Control Utilization Plan frequencies channels may used licensed amateurs control aircraft surface models History historical reasons present day six-meter frequency conventions immediate post-WW II period RC flying done hams no frequencies assigned FCC RC use anyone else very little manufactured RC equipment available hams built own FCC regulations technology available time made six meters principal band choice particular frequency ham used usually dictated whatever war surplus crystal could find junk box February 1995 37 Dark Yellow Orange Black White Silver Perfect Paint high quality part fuel proof paint combines convenience superb results Perfect Paint will cover dopes epoxies metals fiberglass plastic smooth hard mar resis tant finish will crack chip NOW AVAILABLE p~ucheveronihobbyiproductsN PO Box 2480 Sandusky Ohio 44870 Phone & Fax 419-797-2208 video enables beginner LU cover model th 25mb professional results Easy follow presentation Film Video Pioductions 512 847-1551 512 847-9104 $2995 -4- 300 5 & H 20 Summit Dr west wimberley TX 78676 little standardization frequencies few manufacturers Frequency coordination among fliers really problem since RC pilots very few quite far between gas tube super-regenerative receivers day did have sufticient selectivity allow simultaneous flights same field regardless frequency As state art progressed receivers became selective manufactured equipment became available RC fliers chose frequencies near 53 MHz upper end band avoid interference amateur stations engaged point-to-point communications lower end band communications stations avoided upper end band order avoid interference TV channel 2 54-60 MHz early television sets lacked selectivity advent RC superheterodyne receivers possible conduct RC flight time eventually hams AMA manufacturers agreed standardize eight 53 MHz frequencies simplify frequency coordination among fliers 100 kHz spacing appropriate capabilities early superhets 50 MHz channels came being because changes way amateurs use six-meter band addition traditional point-to-point communications via voice Morse code variety communication modes have come use Amateur repeater stations now widely used repeater station relays rebroadcasts signals other stations Repeater station antennas normally located mountaintops tall buildings towers repeaters may have effective communications range 100 miles Two amateurs six meters attempting communicate point-to-point using lowpowered hand-held mobile radios simple antennas would probably have communications range ten miles average terrain relaying signals through repeater range would dramatically extended Repeaters usually owned maintained ham clubs operate fixed frequencies FCC has authorized repeater stations operate frequencies between 51 54MHz FCC regulations micromanage ham bands Over years amateur community has demonstrated its ability keep its own house order FCC has wisely refrained creating lot rules does have resources enforce largely left up amateurs decide among themselves type activities conducted portions various ham bands no means simple task some central coordinating agency required ARRL has undertaken job has created band plans various ham bands ARRL amateur radio AMA model aviation two organizations arc similarly organized principal spokesman hobby provide similar services members except ARRL liability insurance business share somewhat similar problems amateur ARRL member ARRL member pleased decisions made ARRL no matter democratic decision-making process Sound familiar ARRL band plans have force law ARRL has no enforcement authority its band plans essentially gentlemens agreements However blatant disregard established operating conventions such specified band plans may well bring citation FCC under 97101 requires operations conducted accordance good engineering good amateur practice Deliberate malicious interference radio communication signal also prohibited 97101 Despite potential shortcomings band plans almost universally observed amateurs Newcomers may have never heard band plans quickly discover no talk operate out band plan segments 38 Model Aviation 4COLORS Flame Red Deep Red Sky Blue Deep Blue Midnight Blue Bright Yellow Cub Yellow J Complete Line Precision Bench Top MetalworKIng quipment MANUAL & CNC LATHES S SSORIES LOCAL PARTS Using 53 MHz 53 MHz RC frequencies included older ARRL six-meter band plans However FCC authorized repeater operations frequencies ARRL decided would best interests majority amateurs move preferred location RC operations 50800 MHz band segment change coordinated AMA occurred less simultaneously phased changes 72 MHz did away old two-color 72 MHz frequencies eventually resulted todays 50-channel environment 53 MHz channels no longer ARRL band plan However still included AMA Radio Control Utilization Plan RCUP still used ham fliers present amateur communication via repeater stations conducted amateur two-meter band 144-148 Mhz Almost location United States within communications range least two-meter repeater live coast very southeastern corner North Carolina can contact least dozen two-meter repeaters low-powered mobile radio no six-meter repeaters within communications range total 50 active six-meter repeaters southeastern states GA KY MS NC SC TN VA WV Thirteen repeaters transmit frequencies 10 kHz away 53 MHz RC frequencies can supply list repeater frequencies locations states Send businesssize SASE address end article eight states 13 areas 53 MHz frequencies may subject repeater interference depending capabilities RC receiver used location power level repeater very few cases areas may overlap two three frequencies might possibly affected states no problem finding 53 MHz frequency free interference similar situation prevails parts country southeast repeaters transmit 53 MHz frequencies output frequency listen 52 MHz frequencies input frequency may true regions RC users must avoid both input output frequencies repeaters Operation near input frequencies may result interference fixed mobile stations transmitting repeater Transmissions RC transmitter may interfere jam repeater very impolite will make repeater users very angry may result citation FCC under 97101 prevent repeaters interfering other coordinated FCC-recognized regional volunteer amateur organizations groups reliable source up-to-date information about repeater operations area Ask local radio club ARRL contact repeater coordinator area plan attend fly-in contest away home dont forget check repeater situation destination Six-meter repeaters pose little no problem RC operation 53 MHz frequencies arent very since operate fixed frequencies easy avoid careful using 53 MHz fields located near television transmitting sites TV channel 2 54-60 MHz Most TV stations have very high levels effective radiated power interference real possibility Using channels 00-09 Ideally 508 MHz channels channels 00-09 will free interference amateur stations engaged point-to-point communications However equipment used point-topoint communication fully frequency agile entirely possible operator engaged communications stray area above 508 MHz Propagation six-meter band normally line-of-sight However ionospheric conditions will occasionally support brief periods long distance skip TEE STRIPS SELF ADHESIVE SANDING STRIP FOR USE WITH ALL /A14 TEE-BAR PRODUCTS 3 x 5 yds continuous roll Cut length Adheres surfaces Clean neat Available assorted grits No messy glue drying time Unroll length cut & apply Instantly ready sanding No132G 100180 280 Garnet $595 25 Load Free Silicon Carbide $660 Add 20% postage Send 500 catalog k Applied Design Co P 0 Box 3384 Torrance CA 90510 2 volt ci motor pictured out Fox 74 motor prrn power reliability have expect Fox motors BUY SMART BUY AMERICAN BUY FOX VV FOX FOX MANUFACTURING COMPANY 5305 TOWSON AVENUE FORT SMITH ARKANSAS 72901 PHONE 501 646-1656 501 646-1757 February 1995 39 LDM Industries Ball Bearing Servo Conversion Kits can upgrade standard servos ball bearing servos just minutes less cost 1 ball bearingservoyou can upgrade4 standard servos Futaba Kit Fits S28 538 S48 5128 S138 5148 Cirrus CS28 CS128 CS238 CS248 servos #9600 4 pack 95 #96101 pack 5 Aliftonics Kit Fits 94102 standard servo #9700 4 pack$2995 #9710 1 pack$795 Univeisal Kit Fits]R501 &507Focus HS300 RCDO5 Tower TE-SI Hobbico CS-51 Ace 330 19800 4 pack$2095 #98101 pack$595 Other Great Products LDM Part #8000 STRONGBOX$795 Part #8100 STRONGBOX II$1195 Part #9500 NO-HEAT Trim Solvent$695 1 Select correct propeller size following engine manufacturers recommendation 2 Before using plastic props remove flash along edges propeller scraping pocket knife 3 Install propeller using correct nut washer airfoil side forward securely tighten wrench Recheck after flight 4 Only use chicken stick electric starter start engine make adjust ments behind engine 5 Keep spectators least 20 feet away out path rotating propeller order send check money order including $300 S & H LDI Industries Inc PO Box 292396 Dept 2 Tampa FL 336872396 Phone 8139914277 Fax 813991-4810 Florida residents add 61/2% sales tax VISA and MASTER CARD Accepted @1993 LDM Industries Inc 6 Wear safety glasses hand protection operating model engines DO NOT permit objects touch turning pro peller Remain clear propeller arc 7 To stop engine cut off fuel supply accordance manufacturers instruc tions case DO NOT stop pro peller hand other object 8 Inspect propeller after flight Dis card propeller has nicks scratches other visible defect DO NOT repair alter way modify propeller 9 Propeller tips should painted order increase visibility turning rotating propeller can cause serious personal injury FOLLOW THESE INSTRUCTIONS CAREFULLY Windsor Propeller Co / 3219 Monier Circle / Rancho Cordova CA / 95742 * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $299 Cat No 202 Air Cleaner Fine $299 Replacement Inserts Cat No 104 PkI2 Inserts Coarse $239 Cat No 204 Pk/2 Inserts Fine 239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc POBox3756CenrerLineMichigan4lOl5 lAdd $250 shipping igan residents add 4% sales taxI communications band openings occur number stations air increases dramatically time time amateur organizations sponsor operating contests include six-meter band object usually make contact stations areas possible During band openings contests band occupancy high band tends fill up bottom Stations move higher frequency find clear channel entirely possible heat competition such niceties band plan RC channels may forgotten ignored unlikely will ever experience interference distant station due skip propagation local station working skip legal limit 1500 watts peak envelope power another matter Understanding environment no guarantee will never experience interference other amateur activities six meters never have dont know anyone has some potential exists opinion of us black flag fliers less likely experience interference six meters 72 MHz However intend fly RC six meters essential understand band being used fellow amateurs area local ham club good source information QST monthly magazine published ARRL will keep up-todate FCC rules band plans contests operating practices may have some effect RC operations intend avail yourself benefits ham radio other RC urge join participate both local ham club ARRL much less apt experience accidental interference local hams know activities Offer conduct program RC meetings ARRL has some control over destiny ham RC operations need voices within membership willing speak up NEW ONLY $2695 McS MODEL PLANE CADDY Fats aU single wiag planes body widths upto S 114 wing widths up aU landing gear conflgnrations Also available biwing style bodywidths up toS t/4 Siagh Wing$2695FREE BiWing$3195shipping handling SD cNEcK oft hioNEY ORDER AND SUIPHNG INFORMATION I~ MeS CADDYS PO nOX 185 RAEFORD NC 28376 40 Model Aviation 4I Eliminates wobble output shaft Reduces control response deadband Reduces chance flutter Improves control surface centering Allows use pull-pull cables Extends life servos PROPELLER SAFETY MESSAGE safety precautions designed enhance enjoyment model flying should part modelers routine both flying site workshop THE ULTIMATE RACK POR MELD CARRYING AND sTaRAun __________________PAT PBNDJ RC matters no substitute firsthand experience Try arrange use some type communications receiver covers six meters Most fairly inexpensive scanning receivers such sold Radio Shack include sixmeter band Typically FM receivers will copy repeaters other FM stations AM single-sideband digital stations will audible understandable Spend much time can listening various times day possible take receiver out field normal flying days listen listen youll learn ham radio Does ham license have potential increase enjoyment model aviation past fewer RC frequencies available non-hams exclusive channels available black flag fliers object considerable envy availability fifty 72 MHz channels has shortened wait pin model airports However some larger fly-ins six-meter users still enjoy slight advantage Free flight fliers often have look airplanes after successful flights ham free fighters equip models miniature radio beacons use simple direction-finding equipment facilitate recovery Ham radio has used transmit signals TV cameras carried model aircraft Experimenters advanced modelers may interested use ham radio telemetryreceiving data airspeed altitude rpm like models AMA technical team investigating interference potential RC operation occasioned FCC proposal NPRM 92-235 used amateur radio frequencies control aircraft used experiments Modeling-related communications can also important Most model airports have no telephone using hand-held radio local radio clubs two-meter L T-ON OWEN LESS HASSLE MORE FUN Dieselize Davis Diesel Its Awesome kHuo DAVIS MODeL PRODUCTS Devis Diesel Heads Over 100 models Irma 04936 cv Wadds largest preducer Medal Easel Fuek HOLIDAY SPECIAL rf $29951 1211III*%1iIM] Airborne Video Excitement Other Mobile Uses cameraTransmisier Range2000 feet Line sight Transmitter Size1250 x 1250 x 400 Weight5 ounce CameraSize181 2x 17345 x 980 Weight1 ounce Video 8OO2OODOS VISA A~A7D Order Yours Today Super Dou6er II Clipped Wing Version Designed Brad Shepherd wood Premium Quality Hand-Cut Kit Ku daeure Pee-Cut Machined Balsa & Lite Ply Pails Built Up nalsa Lite Ply Construction Two Sheets Full-Size Rolled Plans Extensive Hardware Package Pre-Bent Landing Gear Wire C Extremely aerobatic yet capable slow predictable flight Model Specifwavvons Wing Span 51 Inches wing Area 517 Sq Weight 4 3/4-5 1/4 lbs Recommended Radio Four Channel Recommended Engine 45-50 Four Stroke Spoil 40 Two Cycle Make Check Money Order out LINUK MODELS Add $450 S&H Mans Residents add\ / 5%Tax $425 LINCK MODELS Dept MA 141 Moulton Hill Road Monnon MA 01057 t413 267-9545 February 1995 41 4 50% Power Same Easy Starting No Glow Plugs Runs llvice Long Scale Sound PO Box 141 ord CT 06460 077-1670 complete cots/ag send selfaddressed 7S stamped #10 envelope & $3 credited te tot order MICRO-ELECTRIC ICRO-JET Ducted-Fan System Package Entire module weighs just 26 grams ounee thrust Flies models 6060 sq up 3 oz System Peetisge includes motor 3s 5OmAh Nid battery wiring harness charger pans complete Instructions build tan module MICROJETSJstm 1 flTWIN MICRO-JET System $2695 Plea acid 02 Se posaaaeandma id ernie repeater equipped autopatch ham can access telephone network call 911 will bring ambulance fire department need arises may simply want tell wife its great day flyinghold dinner until dark couple hams hand-held radios can simplify management long flight line parking area busy fly-in several on-the-air round tables meet regularly bit hangar flying via ham radio operate lower long-distance frequencies available Technician licensee some larger metropolitan areas will find nets operating local repeaters go RC flying originated ham bands hobbies RC flying ham radio will continue closely related Traditionally two hobbies have attracted same types individualstechnically inclined people driven experiment make things work radio equipment use today based technology developed amateurs likely next generation equipment will originate ham bands FCC under unrelenting pressure large powerful constituencies grant operating privileges increasing number users types radio equipment radio spectrum finite new user creates potential interference other users True clear channels no longer exist art RC modeling advancing giant steps flying heavy models speeds approach 200 mph magnificent Scale creations represent investments several thousand dollars several years work controlled best todays narrowband radios models can brought down spurious signal improperly maintained two-way radio passing car neighboring youngster new ARF discount toy store mixup pins frequency control board UNIQUEFree PLANS KITSCatalog Sd At4ea 1528 S KOELLER BOX 301W OSEKOSH WI 54951 uuv FOR THE MODELER! FREE /C14551 M304 6624538 CATALOG Choose Fmni Lage Selection OtShop Model & much morel tVIDEO TAPES ALSO 6.1 SAVE YOUR FIELD SNUF-LER muffler isa low cost easy install lightweight sound reducing muffler no performance penalty answer AMA muffler rule suggestions saving flying fields Meets AMA muffler rule suggestions SNUF-FLERM 3 10 decibels quieter stock muffler MUFFLER No power loss possible 300-500 RPM increase Pnted Improves engine idle s better fuel economy Easily attached 25-108 stock mufflers Heat corrosion resistant Black E coat finish No special adapters required weighs 35 oza Fits ASP BRAT ENYA FOX HP IRVINE K & B OS MAX ROYAL VS SUPER TIGRE mufflers available hobby shop ORDER DIRECT tor immediate shipment Check MO. Vioa MC COD SEND 250 STAMP accepted Add $250 UPS $200 COD 6% sales tax FOR ADDITIONAL INFO tsr CsliI residentAND JTEC CATALOG February 1995 43 8-BALL SPECIAL Giant Sport its Best premium quality wood & foam kit containing hand cut balsa ply parts f/ cowl aluminum landing gear canopy foam wing cores rolled plans Extremely aerobatic yet capable slow solid flight Span 85 Weight 175 lbs1 Intro Price $19995Area 1367 Length 63 S26955Power G38/042 similar Reids Quality Model Products 16 Main Street Phelps New York 14532 Catalog SLOO 3155483779 American Made 2 $2495 CAT NO BOO Some known basic technologies can provide radios vastly improved resistance interference What needed reduction practice demonstration testing actual operating environments Radio amateurs have historically demonstrated ability type thing FCC regulations encourage type experimentation ham bands promising long-term technology seems spread spectrum allows stations use same frequencies simultaneously mutual interference type emission already authorized some ham bands Short-term solutions may involve such well-known concepts frequency diversity present frequency assignments narrow-band radios result leadership dedication AMA AMA can should take leadership role solving interference problem through technical advance AMA can set goals coordinate activities experimenters provide liaison ARRL RCMA FCC other concerned parties Perhaps AMA can provide test equipment some funding sample demonstration hardware Spectrum pollution going get worse time marches going have radios need survive time action now can expect hams part Happy landings 73 Thanks Warren Plohr W8IAH made important contributions article Technical review Bob Underwood Robert Johnson AA4L Box 4099 Calabash NC 28467 oz 25 $1 O5IYd 2 oz 38 14 oz 44 $135IYd 3 oz 50 14 oz 50 $15OIYd 32 oz 50 FIBERGL4SS SUPER SALE Limited Quantities Prices Plain Weave Epoxy Finish Minimum Purchase 10 Yds $1 6OIYd $200/Yd $2OOIYd Satin Weave 316 oz 38 $25OIYd Bolt prices $075 $15OIYd CLUBS MANUFACIURERS & DEALERS WELCOME osite Structures Technology _____________________ P 0 Box 642 Dept JI Tehachapi CA 93581 Order Desk 1400438-1278 ' REPORT CARD ON HINGES After ten years everybody thinks schools out hinges Lets grade competition see needs classes EASY HINES- TM What look CA hinge Experience no can match SIGs 10 years development use HingeCorrect thickness achieve balance between strength durability flexibility ease assembly No holes slots weaken hinge Special surface treatment secure grip facing comes off hinge will come out Facing Thin easy insert hinge Treated C wicks across whole hinge wood Processed retard CA cure time correct mistake just surface bonds ALL surface bonds MATERIALS THAT REALLY WORK EVERY TIME FOR LONG liME Dont depend lucA depend SIG EASY HINGES first still best name CA hinges Hinges rather ordinary item critical life model Dont save buck hinges crash buy use SIG EASY HINGES confidence SIG Easy Hinges DB D GP B C F GB SH-710 Pkp 24- S29b Materials Total Thickness HingeThicknessAAAABAB TearStrengthAAAABAB A A F n A F n B fl4 F F D F F C4 D F Surface Treatment floknintinrj Stronnth Slots Holes Glue Action Wickina DelayedCureACCFFFF BC CCAverage Grade SIG MFG CO INC 401-7 So Front St Montezuma IA 50171 623-5154 February 1995 45 LIGHTING SYSTEMS THE ORIGINALS. Still Best RAM 01Adj Flash Nay Lights 9V NEW 94 span w/ wing light conn$2995 RAM 02Strobe Light 9V adjustable flash rate 1995 3995 RAM 03Landing Lights 48V receiver controlled RAM 04Mars Rotating Beacon 9V adjustable rate1995 RAM 05Marine Navigation Lights 9V non flashing1095 RAM 06Sky Lights 18 Light Set 72-9V best way fly night2495 RAM 14Big Airplane Navigation Lights 9V 168 span non flashing2495 RAM 16Econo Landing Lights 9V servo controlled brightest1995 RAM 23Real Strobe Light 3V brightest2995 RAM 65 T6 Lg Scale Lighting 72-9V Comb #s 04 14 & 16 100 span 5995 SEE YOUR DEALERS SEND STAMPED ENVELOPE FOR RAM iNFO if unavailabie iocaiiy send check money order fuli credit card info cost item plus $4 DO l$5 00 foreignl br immediate shipnent include fuli address br UPS Sorry no COD cRam 229C E Rollins Rd d Lake Beach IL 60073 ST F D D F D
Edition: Model Aviation - 1995/02
Page Numbers: 35, 37, 38, 39, 40, 41, 43, 45
Recen t changes amateur radio regulations can put ham license within easy reach almost anyone RC fliers have taken advantage new licensing regulations thinking about Discussions club meetings fly-ins have convinced new prospective hams have clear understanding rules practices relating remote control model craft Federal Communications Commission terminology via amateur radio six-meter old-timers active other phases ham radio aware newer types non-RC activities six-meter band Club officers contest direct ors have responsibility frequency control compliance AMA Safety Code Radio Control Utilization Plan seem singularly unin formed what con stitutes legal six-meter oper ation article represents effort part change First few definitions Part 97 subpart FCC regulations defines amateur service radio communication service purpose self-training intercommunication technical investigations carried out amateurs duly authorized persons interested radio technique solely personal aim pecuniary interest An amateur operator defined person holding written authorization control operator amateur radio station written authorization amateur license amateur license actually has two partsan operators license station license FCC assigns call sign amateur station five classes operator licenses different classes licenses convey different operating privileges require demonstration different skill levels no-code license February 1991 FCC eliminated Morse code test examination Technician class amateur radio license Technician class license may now obtained simply passing 55-question multiple-choice written test amateur regulations amateur practices basic radio communications theory Technician license conveys full amateur privileges amateur frequencies above 30 MHz including six-meter band Amateur license exams conducted FCC-authorized volunteer examiners Check local ham club obtain exam schedule area American Radio Relay League ARRL 225 Main St Newington CT 06111 publishes complete study materials Technician license can put contact nearest ARRL-affiliated ham club clubs conduct licensing classes ARRL material contains need know exam simply isnt tough spend some time preparing Only simplest math required Regulations What RC privileges does FCC extend Technician licensee specific reference RC amateur reg-ulations contained subpart C regulations 972 15 Remote control model craft An amateur station trans mitting signals model craft may operated follows station iden tification procedure required transmissions directed model craft provided label indicating station call sign station licensees name address affixed station transmitter b control signals considered codes ciphers intended obscure meaning com munication c transmitter power must exceed 1 W Section excuses RC station re quirement ama teur station must period ically transmit its call sign via voice Morse code other authorized type emission Section b has regulations prohibit ham use codes ciphers regulations specifically define model craft believe FCC would look kindly use ham radio control full-scale airplane automobile Another regulation interest 979 states part license document photocopy thereof must personal possession licensee times person control operator station cited regulations should lay rest some myths concerning just what constitutes legal use amateur frequencies RC Part 4 AMA Radio Control Utilization Plan requires AMA event officials enforce Amateur Radio Operator licensing requirements sanctioned events experience seldom done usual excuse access Call Book February 1995 35 officials have no way determine licensed Regulation 979 plainly states no can legally operate amateur radio station unless has license personal possession Period Event officials should also verify transmitter labeling requirements 97215 met Violation of regulations can result criminal civil penalties Admittedly FCC enforcement agents unlikely visit fly-ins However FCC may well become involved should unfortunate incident occur Furthermore believe use amateur RC equipment contrary FCC regulations constitutes violation AMA safety code suspect may also negate some primary liability coverage provided homeowners umbrella policies have told event officials should know better its legal anyone fly six meters long licensed amateur turns transmitter off definitely no specific authorization regulations allow anyone licensed amateur operate hamband RC transmitter Rule 97115 does permit unlicensed persons under certain conditions participate amateur radio communications under immediate supervision licensed control operator However FCC issued ruling FCC 80-634 dated November 6 1980 97115 does apply RC operations no circumstances under unlicensed person may operate RC transmitter operating amateur frequencies Part 97 has completely rewritten since ruling issued language interest remains essentially unchanged Therefore ruling still effect has force law An unlicensed person cannot legally touch controls RC transmitter transmitting signals amateur frequencies As licensed amateur cannot hand transmitter unlicensed person purposes instruction demonstration buddy-box system transmits ham frequencies used both users must licensed amateurs thanks Technical Director Bob Underwood very kindly dug copy FCC ruling out voluminous files Frequencies Note no mention 97215 specific frequencies word about six meters 50 MHz 53 MHz other magic numbers come mind think about ham radio RC fact no specific frequencies channels designated FCC RC use no exclusive RC channels ham bands Regulations contained subpart D part 97 identify types radio frequency emissions may used various frequencies assigned amateur radio service regulations effectively prohibit types emissions used RC equipment frequencies below 501 MHz still leaves us quite bit room Todays radio technology makes RC control practical amateur bands 6 meters 2 meters 125 meters 70 centimeters 33 centimeters 23 centimeters Thats 1268 MHz spectrum space 20 kHz spacing room 6340 RC channels legal far FCC concerned course channels use amateurs purposes unrelated RC still plenty room available need Six-meter practices Le galities aside am aware RC activity using ham band other six-meter band sixmeter band includes frequencies between 50 54 MHz Ten RC channels eight two-color frequencies common use ten channels between 50800 50980 MHz channels spaced 20 kHz apart have assigned AMA RCMA channel numbers 00 09 Because channel spacing same now used 72 MHz use narrow-band receivers narrow-band formerly gold-stickered transmitters required field identification system same used 72 MHz except black rather red wind streamer used additional frequencies 53100 53200 53300 0 MHz Since frequencies 100 kHz apart narrow-band equipment required frequencies have assigned channel numbers identified field two-color wind streamer system top streamer black indicating use amateur frequency color second streamer indicates frequency See AMA Membership Manual details channel-marking systems other information AMA Radio Control Utilization Plan frequencies channels may used licensed amateurs control aircraft surface models History historical reasons present day six-meter frequency conventions immediate post-WW II period RC flying done hams no frequencies assigned FCC RC use anyone else very little manufactured RC equipment available hams built own FCC regulations technology available time made six meters principal band choice particular frequency ham used usually dictated whatever war surplus crystal could find junk box February 1995 37 Dark Yellow Orange Black White Silver Perfect Paint high quality part fuel proof paint combines convenience superb results Perfect Paint will cover dopes epoxies metals fiberglass plastic smooth hard mar resis tant finish will crack chip NOW AVAILABLE p~ucheveronihobbyiproductsN PO Box 2480 Sandusky Ohio 44870 Phone & Fax 419-797-2208 video enables beginner LU cover model th 25mb professional results Easy follow presentation Film Video Pioductions 512 847-1551 512 847-9104 $2995 -4- 300 5 & H 20 Summit Dr west wimberley TX 78676 little standardization frequencies few manufacturers Frequency coordination among fliers really problem since RC pilots very few quite far between gas tube super-regenerative receivers day did have sufticient selectivity allow simultaneous flights same field regardless frequency As state art progressed receivers became selective manufactured equipment became available RC fliers chose frequencies near 53 MHz upper end band avoid interference amateur stations engaged point-to-point communications lower end band communications stations avoided upper end band order avoid interference TV channel 2 54-60 MHz early television sets lacked selectivity advent RC superheterodyne receivers possible conduct RC flight time eventually hams AMA manufacturers agreed standardize eight 53 MHz frequencies simplify frequency coordination among fliers 100 kHz spacing appropriate capabilities early superhets 50 MHz channels came being because changes way amateurs use six-meter band addition traditional point-to-point communications via voice Morse code variety communication modes have come use Amateur repeater stations now widely used repeater station relays rebroadcasts signals other stations Repeater station antennas normally located mountaintops tall buildings towers repeaters may have effective communications range 100 miles Two amateurs six meters attempting communicate point-to-point using lowpowered hand-held mobile radios simple antennas would probably have communications range ten miles average terrain relaying signals through repeater range would dramatically extended Repeaters usually owned maintained ham clubs operate fixed frequencies FCC has authorized repeater stations operate frequencies between 51 54MHz FCC regulations micromanage ham bands Over years amateur community has demonstrated its ability keep its own house order FCC has wisely refrained creating lot rules does have resources enforce largely left up amateurs decide among themselves type activities conducted portions various ham bands no means simple task some central coordinating agency required ARRL has undertaken job has created band plans various ham bands ARRL amateur radio AMA model aviation two organizations arc similarly organized principal spokesman hobby provide similar services members except ARRL liability insurance business share somewhat similar problems amateur ARRL member ARRL member pleased decisions made ARRL no matter democratic decision-making process Sound familiar ARRL band plans have force law ARRL has no enforcement authority its band plans essentially gentlemens agreements However blatant disregard established operating conventions such specified band plans may well bring citation FCC under 97101 requires operations conducted accordance good engineering good amateur practice Deliberate malicious interference radio communication signal also prohibited 97101 Despite potential shortcomings band plans almost universally observed amateurs Newcomers may have never heard band plans quickly discover no talk operate out band plan segments 38 Model Aviation 4COLORS Flame Red Deep Red Sky Blue Deep Blue Midnight Blue Bright Yellow Cub Yellow J Complete Line Precision Bench Top MetalworKIng quipment MANUAL & CNC LATHES S SSORIES LOCAL PARTS Using 53 MHz 53 MHz RC frequencies included older ARRL six-meter band plans However FCC authorized repeater operations frequencies ARRL decided would best interests majority amateurs move preferred location RC operations 50800 MHz band segment change coordinated AMA occurred less simultaneously phased changes 72 MHz did away old two-color 72 MHz frequencies eventually resulted todays 50-channel environment 53 MHz channels no longer ARRL band plan However still included AMA Radio Control Utilization Plan RCUP still used ham fliers present amateur communication via repeater stations conducted amateur two-meter band 144-148 Mhz Almost location United States within communications range least two-meter repeater live coast very southeastern corner North Carolina can contact least dozen two-meter repeaters low-powered mobile radio no six-meter repeaters within communications range total 50 active six-meter repeaters southeastern states GA KY MS NC SC TN VA WV Thirteen repeaters transmit frequencies 10 kHz away 53 MHz RC frequencies can supply list repeater frequencies locations states Send businesssize SASE address end article eight states 13 areas 53 MHz frequencies may subject repeater interference depending capabilities RC receiver used location power level repeater very few cases areas may overlap two three frequencies might possibly affected states no problem finding 53 MHz frequency free interference similar situation prevails parts country southeast repeaters transmit 53 MHz frequencies output frequency listen 52 MHz frequencies input frequency may true regions RC users must avoid both input output frequencies repeaters Operation near input frequencies may result interference fixed mobile stations transmitting repeater Transmissions RC transmitter may interfere jam repeater very impolite will make repeater users very angry may result citation FCC under 97101 prevent repeaters interfering other coordinated FCC-recognized regional volunteer amateur organizations groups reliable source up-to-date information about repeater operations area Ask local radio club ARRL contact repeater coordinator area plan attend fly-in contest away home dont forget check repeater situation destination Six-meter repeaters pose little no problem RC operation 53 MHz frequencies arent very since operate fixed frequencies easy avoid careful using 53 MHz fields located near television transmitting sites TV channel 2 54-60 MHz Most TV stations have very high levels effective radiated power interference real possibility Using channels 00-09 Ideally 508 MHz channels channels 00-09 will free interference amateur stations engaged point-to-point communications However equipment used point-topoint communication fully frequency agile entirely possible operator engaged communications stray area above 508 MHz Propagation six-meter band normally line-of-sight However ionospheric conditions will occasionally support brief periods long distance skip TEE STRIPS SELF ADHESIVE SANDING STRIP FOR USE WITH ALL /A14 TEE-BAR PRODUCTS 3 x 5 yds continuous roll Cut length Adheres surfaces Clean neat Available assorted grits No messy glue drying time Unroll length cut & apply Instantly ready sanding No132G 100180 280 Garnet $595 25 Load Free Silicon Carbide $660 Add 20% postage Send 500 catalog k Applied Design Co P 0 Box 3384 Torrance CA 90510 2 volt ci motor pictured out Fox 74 motor prrn power reliability have expect Fox motors BUY SMART BUY AMERICAN BUY FOX VV FOX FOX MANUFACTURING COMPANY 5305 TOWSON AVENUE FORT SMITH ARKANSAS 72901 PHONE 501 646-1656 501 646-1757 February 1995 39 LDM Industries Ball Bearing Servo Conversion Kits can upgrade standard servos ball bearing servos just minutes less cost 1 ball bearingservoyou can upgrade4 standard servos Futaba Kit Fits S28 538 S48 5128 S138 5148 Cirrus CS28 CS128 CS238 CS248 servos #9600 4 pack 95 #96101 pack 5 Aliftonics Kit Fits 94102 standard servo #9700 4 pack$2995 #9710 1 pack$795 Univeisal Kit Fits]R501 &507Focus HS300 RCDO5 Tower TE-SI Hobbico CS-51 Ace 330 19800 4 pack$2095 #98101 pack$595 Other Great Products LDM Part #8000 STRONGBOX$795 Part #8100 STRONGBOX II$1195 Part #9500 NO-HEAT Trim Solvent$695 1 Select correct propeller size following engine manufacturers recommendation 2 Before using plastic props remove flash along edges propeller scraping pocket knife 3 Install propeller using correct nut washer airfoil side forward securely tighten wrench Recheck after flight 4 Only use chicken stick electric starter start engine make adjust ments behind engine 5 Keep spectators least 20 feet away out path rotating propeller order send check money order including $300 S & H LDI Industries Inc PO Box 292396 Dept 2 Tampa FL 336872396 Phone 8139914277 Fax 813991-4810 Florida residents add 61/2% sales tax VISA and MASTER CARD Accepted @1993 LDM Industries Inc 6 Wear safety glasses hand protection operating model engines DO NOT permit objects touch turning pro peller Remain clear propeller arc 7 To stop engine cut off fuel supply accordance manufacturers instruc tions case DO NOT stop pro peller hand other object 8 Inspect propeller after flight Dis card propeller has nicks scratches other visible defect DO NOT repair alter way modify propeller 9 Propeller tips should painted order increase visibility turning rotating propeller can cause serious personal injury FOLLOW THESE INSTRUCTIONS CAREFULLY Windsor Propeller Co / 3219 Monier Circle / Rancho Cordova CA / 95742 * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $299 Cat No 202 Air Cleaner Fine $299 Replacement Inserts Cat No 104 PkI2 Inserts Coarse $239 Cat No 204 Pk/2 Inserts Fine 239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc POBox3756CenrerLineMichigan4lOl5 lAdd $250 shipping igan residents add 4% sales taxI communications band openings occur number stations air increases dramatically time time amateur organizations sponsor operating contests include six-meter band object usually make contact stations areas possible During band openings contests band occupancy high band tends fill up bottom Stations move higher frequency find clear channel entirely possible heat competition such niceties band plan RC channels may forgotten ignored unlikely will ever experience interference distant station due skip propagation local station working skip legal limit 1500 watts peak envelope power another matter Understanding environment no guarantee will never experience interference other amateur activities six meters never have dont know anyone has some potential exists opinion of us black flag fliers less likely experience interference six meters 72 MHz However intend fly RC six meters essential understand band being used fellow amateurs area local ham club good source information QST monthly magazine published ARRL will keep up-todate FCC rules band plans contests operating practices may have some effect RC operations intend avail yourself benefits ham radio other RC urge join participate both local ham club ARRL much less apt experience accidental interference local hams know activities Offer conduct program RC meetings ARRL has some control over destiny ham RC operations need voices within membership willing speak up NEW ONLY $2695 McS MODEL PLANE CADDY Fats aU single wiag planes body widths upto S 114 wing widths up aU landing gear conflgnrations Also available biwing style bodywidths up toS t/4 Siagh Wing$2695FREE BiWing$3195shipping handling SD cNEcK oft hioNEY ORDER AND SUIPHNG INFORMATION I~ MeS CADDYS PO nOX 185 RAEFORD NC 28376 40 Model Aviation 4I Eliminates wobble output shaft Reduces control response deadband Reduces chance flutter Improves control surface centering Allows use pull-pull cables Extends life servos PROPELLER SAFETY MESSAGE safety precautions designed enhance enjoyment model flying should part modelers routine both flying site workshop THE ULTIMATE RACK POR MELD CARRYING AND sTaRAun __________________PAT PBNDJ RC matters no substitute firsthand experience Try arrange use some type communications receiver covers six meters Most fairly inexpensive scanning receivers such sold Radio Shack include sixmeter band Typically FM receivers will copy repeaters other FM stations AM single-sideband digital stations will audible understandable Spend much time can listening various times day possible take receiver out field normal flying days listen listen youll learn ham radio Does ham license have potential increase enjoyment model aviation past fewer RC frequencies available non-hams exclusive channels available black flag fliers object considerable envy availability fifty 72 MHz channels has shortened wait pin model airports However some larger fly-ins six-meter users still enjoy slight advantage Free flight fliers often have look airplanes after successful flights ham free fighters equip models miniature radio beacons use simple direction-finding equipment facilitate recovery Ham radio has used transmit signals TV cameras carried model aircraft Experimenters advanced modelers may interested use ham radio telemetryreceiving data airspeed altitude rpm like models AMA technical team investigating interference potential RC operation occasioned FCC proposal NPRM 92-235 used amateur radio frequencies control aircraft used experiments Modeling-related communications can also important Most model airports have no telephone using hand-held radio local radio clubs two-meter L T-ON OWEN LESS HASSLE MORE FUN Dieselize Davis Diesel Its Awesome kHuo DAVIS MODeL PRODUCTS Devis Diesel Heads Over 100 models Irma 04936 cv Wadds largest preducer Medal Easel Fuek HOLIDAY SPECIAL rf $29951 1211III*%1iIM] Airborne Video Excitement Other Mobile Uses cameraTransmisier Range2000 feet Line sight Transmitter Size1250 x 1250 x 400 Weight5 ounce CameraSize181 2x 17345 x 980 Weight1 ounce Video 8OO2OODOS VISA A~A7D Order Yours Today Super Dou6er II Clipped Wing Version Designed Brad Shepherd wood Premium Quality Hand-Cut Kit Ku daeure Pee-Cut Machined Balsa & Lite Ply Pails Built Up nalsa Lite Ply Construction Two Sheets Full-Size Rolled Plans Extensive Hardware Package Pre-Bent Landing Gear Wire C Extremely aerobatic yet capable slow predictable flight Model Specifwavvons Wing Span 51 Inches wing Area 517 Sq Weight 4 3/4-5 1/4 lbs Recommended Radio Four Channel Recommended Engine 45-50 Four Stroke Spoil 40 Two Cycle Make Check Money Order out LINUK MODELS Add $450 S&H Mans Residents add\ / 5%Tax $425 LINCK MODELS Dept MA 141 Moulton Hill Road Monnon MA 01057 t413 267-9545 February 1995 41 4 50% Power Same Easy Starting No Glow Plugs Runs llvice Long Scale Sound PO Box 141 ord CT 06460 077-1670 complete cots/ag send selfaddressed 7S stamped #10 envelope & $3 credited te tot order MICRO-ELECTRIC ICRO-JET Ducted-Fan System Package Entire module weighs just 26 grams ounee thrust Flies models 6060 sq up 3 oz System Peetisge includes motor 3s 5OmAh Nid battery wiring harness charger pans complete Instructions build tan module MICROJETSJstm 1 flTWIN MICRO-JET System $2695 Plea acid 02 Se posaaaeandma id ernie repeater equipped autopatch ham can access telephone network call 911 will bring ambulance fire department need arises may simply want tell wife its great day flyinghold dinner until dark couple hams hand-held radios can simplify management long flight line parking area busy fly-in several on-the-air round tables meet regularly bit hangar flying via ham radio operate lower long-distance frequencies available Technician licensee some larger metropolitan areas will find nets operating local repeaters go RC flying originated ham bands hobbies RC flying ham radio will continue closely related Traditionally two hobbies have attracted same types individualstechnically inclined people driven experiment make things work radio equipment use today based technology developed amateurs likely next generation equipment will originate ham bands FCC under unrelenting pressure large powerful constituencies grant operating privileges increasing number users types radio equipment radio spectrum finite new user creates potential interference other users True clear channels no longer exist art RC modeling advancing giant steps flying heavy models speeds approach 200 mph magnificent Scale creations represent investments several thousand dollars several years work controlled best todays narrowband radios models can brought down spurious signal improperly maintained two-way radio passing car neighboring youngster new ARF discount toy store mixup pins frequency control board UNIQUEFree PLANS KITSCatalog Sd At4ea 1528 S KOELLER BOX 301W OSEKOSH WI 54951 uuv FOR THE MODELER! FREE /C14551 M304 6624538 CATALOG Choose Fmni Lage Selection OtShop Model & much morel tVIDEO TAPES ALSO 6.1 SAVE YOUR FIELD SNUF-LER muffler isa low cost easy install lightweight sound reducing muffler no performance penalty answer AMA muffler rule suggestions saving flying fields Meets AMA muffler rule suggestions SNUF-FLERM 3 10 decibels quieter stock muffler MUFFLER No power loss possible 300-500 RPM increase Pnted Improves engine idle s better fuel economy Easily attached 25-108 stock mufflers Heat corrosion resistant Black E coat finish No special adapters required weighs 35 oza Fits ASP BRAT ENYA FOX HP IRVINE K & B OS MAX ROYAL VS SUPER TIGRE mufflers available hobby shop ORDER DIRECT tor immediate shipment Check MO. Vioa MC COD SEND 250 STAMP accepted Add $250 UPS $200 COD 6% sales tax FOR ADDITIONAL INFO tsr CsliI residentAND JTEC CATALOG February 1995 43 8-BALL SPECIAL Giant Sport its Best premium quality wood & foam kit containing hand cut balsa ply parts f/ cowl aluminum landing gear canopy foam wing cores rolled plans Extremely aerobatic yet capable slow solid flight Span 85 Weight 175 lbs1 Intro Price $19995Area 1367 Length 63 S26955Power G38/042 similar Reids Quality Model Products 16 Main Street Phelps New York 14532 Catalog SLOO 3155483779 American Made 2 $2495 CAT NO BOO Some known basic technologies can provide radios vastly improved resistance interference What needed reduction practice demonstration testing actual operating environments Radio amateurs have historically demonstrated ability type thing FCC regulations encourage type experimentation ham bands promising long-term technology seems spread spectrum allows stations use same frequencies simultaneously mutual interference type emission already authorized some ham bands Short-term solutions may involve such well-known concepts frequency diversity present frequency assignments narrow-band radios result leadership dedication AMA AMA can should take leadership role solving interference problem through technical advance AMA can set goals coordinate activities experimenters provide liaison ARRL RCMA FCC other concerned parties Perhaps AMA can provide test equipment some funding sample demonstration hardware Spectrum pollution going get worse time marches going have radios need survive time action now can expect hams part Happy landings 73 Thanks Warren Plohr W8IAH made important contributions article Technical review Bob Underwood Robert Johnson AA4L Box 4099 Calabash NC 28467 oz 25 $1 O5IYd 2 oz 38 14 oz 44 $135IYd 3 oz 50 14 oz 50 $15OIYd 32 oz 50 FIBERGL4SS SUPER SALE Limited Quantities Prices Plain Weave Epoxy Finish Minimum Purchase 10 Yds $1 6OIYd $200/Yd $2OOIYd Satin Weave 316 oz 38 $25OIYd Bolt prices $075 $15OIYd CLUBS MANUFACIURERS & DEALERS WELCOME osite Structures Technology _____________________ P 0 Box 642 Dept JI Tehachapi CA 93581 Order Desk 1400438-1278 ' REPORT CARD ON HINGES After ten years everybody thinks schools out hinges Lets grade competition see needs classes EASY HINES- TM What look CA hinge Experience no can match SIGs 10 years development use HingeCorrect thickness achieve balance between strength durability flexibility ease assembly No holes slots weaken hinge Special surface treatment secure grip facing comes off hinge will come out Facing Thin easy insert hinge Treated C wicks across whole hinge wood Processed retard CA cure time correct mistake just surface bonds ALL surface bonds MATERIALS THAT REALLY WORK EVERY TIME FOR LONG liME Dont depend lucA depend SIG EASY HINGES first still best name CA hinges Hinges rather ordinary item critical life model Dont save buck hinges crash buy use SIG EASY HINGES confidence SIG Easy Hinges DB D GP B C F GB SH-710 Pkp 24- S29b Materials Total Thickness HingeThicknessAAAABAB TearStrengthAAAABAB A A F n A F n B fl4 F F D F F C4 D F Surface Treatment floknintinrj Stronnth Slots Holes Glue Action Wickina DelayedCureACCFFFF BC CCAverage Grade SIG MFG CO INC 401-7 So Front St Montezuma IA 50171 623-5154 February 1995 45 LIGHTING SYSTEMS THE ORIGINALS. Still Best RAM 01Adj Flash Nay Lights 9V NEW 94 span w/ wing light conn$2995 RAM 02Strobe Light 9V adjustable flash rate 1995 3995 RAM 03Landing Lights 48V receiver controlled RAM 04Mars Rotating Beacon 9V adjustable rate1995 RAM 05Marine Navigation Lights 9V non flashing1095 RAM 06Sky Lights 18 Light Set 72-9V best way fly night2495 RAM 14Big Airplane Navigation Lights 9V 168 span non flashing2495 RAM 16Econo Landing Lights 9V servo controlled brightest1995 RAM 23Real Strobe Light 3V brightest2995 RAM 65 T6 Lg Scale Lighting 72-9V Comb #s 04 14 & 16 100 span 5995 SEE YOUR DEALERS SEND STAMPED ENVELOPE FOR RAM iNFO if unavailabie iocaiiy send check money order fuli credit card info cost item plus $4 DO l$5 00 foreignl br immediate shipnent include fuli address br UPS Sorry no COD cRam 229C E Rollins Rd d Lake Beach IL 60073 ST F D D F D