If have interest form corn petition story must reading authors odyssey through three Nats two close-butno-champagne endings culminating heartbreaker striking whether youre CL Precision Aerobatics Plans cluded construction very special airplane@Ted Fancher EXCITATION Little did know time chose name prophetic would become Never experience has airplane taken its builder/flier such emotional roller coaster ride did late almost great Excitation Excitation completed spring 1978 After period flight testing trim ming convinced machine would competitive best would necessity Lincoln Natt would mark return top competitors unable compete 1978 due atten dance World Championships would no easy wins Lincoln Victories two local California contests July proved Excitations ability score well flew left Nats optimistic state mind optimism appeared well-founded end qualifying semi-finals third place very much chase National Championship Unfortunately morning Walker Cup flyoff awoke Stunt fliers night maregale force winds aday airplanes tied tool boxes blown away hats tents impossible judging flying conditionsa real Stunt event opposed Precision Aerobatics championship Excitation performed admirably although definitely need horsepower ST40 capable providing Despite flying highest score second round having legitimate shot Walker Cup right up last flight day total effort up demands day competi tion ended up 5th place satisfactory totally satisfying national debut Although somewhat disappointed felt learned great deal Lincoln experience First foremost ST40 although ade quate conditions did provide reserve horsepower necessary top perform ances under poor conditions advantage 40 its use allowed Excitation legally flown 015 cables thought reduction drag thus achieved outweighed potential loss torque avallable larger engine performance Lincoln proved wrong however simple curea drawer full outstanding Vic Garner-prepared ST46s would drop right Since next major competition FAL Team Trials Dayton following month could use 46 018 anchor chalns required AMA rules inasmuch FAI rules require no minimum line diameter horsepower less drag equals increased performance event convinced 015 lines strong enough pay dearly conviction Once again took off beautiful San Francisco peninsula live Excita tion baggage pitand visions Poland dancing head Surely after performing near stand-off its anemic Lincoln condition new Charles Atlas-ized Excitation could finally leading rather scrambling pack Oh nearly first day Dayton appeared though indeed week last Hot muggy weather resultant high density alti tudes top guns scratching heads werent catching floundering airplanes fell out thin calm dead Ohio skies Excitation other hand performing perfectlyflying little 44 Model Aviation faster sure purposely gener ally taking delight its new-found muscles Such state affairs day qualifying everyone looking breath air finding noneand Excitation perform ing better ever end day topnot little sizable margin having highest score qualifying rounds Cloud Nine going far call Shareen #1 supporter telling shed better get some books speaking Polish good Talk about premature could write new definition Mr Webster two rounds following day things con tinued going way Most pilots still fighting dead airwith notable exception Stiletto McDonaldand going third last round very solid second place again shot * 1 just put practice flight about mentor impossible-to-please critic Bill Fitzgerald stated Youre finally starting get idea Such staggering praise first good thing say week pumped up moved pull-test area last flight convinced no way could kept off team Years hard work about pay off ever man ready OK Ted pull Ill release No sweat done thousand times never problem snap jerk.my lines perhaps heart up line broke.damn dont have spare lines dumb dumb dumb Wynn Paul asks What size lines need Ted dont know cant think come controls dont work What mean Theyre jammed full down Terrific something inside must have broken Bob Whitely Bart Klapinski bring knife surgery begins Bob Hunt Ted have fly after next flight lose turn incision complete bellcrank has swung past 1800 jammed over center fingers crossed force back. okay now .sure sure is. has .theres no time voice crowd flaps elevators bothdown.oh its trimmed way.no little down lot.what now .something must bentcontrol horn push rod.no way tell Bob Hunt Ted must fly now pass Oh boy go.is handle set right.who knows. ease wing-over. whoops well least know handle isnt right .try adjust inverted flight.nothings right. wont turn outside. almost stuck time. disaster ster k God its over ever over After numbers made team fallen pinnacle ignominious 6th Place emotional wreck came close quitting competition ever have Excita tion proving itself aptly named Unfortunately Jekyll Hyde relation ship capricious lady quite over As learn through toying emotions abusing psyche would let know finality complete examination home uncov ered severe trauma control system includ ing control horn twisted about 200 force jammed controlswhich caused previously inexplicable condition both flaps elevators being down about 150 same time also broken solder joint December 1981 45 According 10 aumnor on-field dis assembly allows model stored compact shipping case Extra small pieces stored Windy Urtnowskis Sweeper van rough facsimile author peers around edge instrument panel canopy dyed dark blue fabric dye photos author between arms horn flap control horn Surgery performed affected areas after recuperative retrimming Devil Lady appeared ready another sault Walker Cup Come 1980 made last pilgrimage Ohio Wilmington Nats Early week things going well prepared well before having trouble adjusting two days travel sleep finals held second day would have spectator perhaps happier thout knowing After day practice two days qualifying rounds very nearly disastrous first round semi-finals finally health airplane act together same time place fourth year row 3rd place entering Walker Cup flyoff once again optimism creeping out onto sleeve could lose sincere Let tell morning finals dawned little cloudy blustery no rain appeared imminent conditions ideal certainly superior Lincolns gales crack dawn unflappable buddy Bill Fitzgerald holding Garner ST46 barked life first planned three warm-up flights prior start compe tition uncharacteristically Excitation came off little rich cool morning air went perfunctorily through slow sloppy pattern rnn out both fuel nervous jitters After completing pattern habitually three outside triangles clear lines landing now Excitations final perversity 46 Model Aviation Supertigre 46 prepared author vu uarner sports Adam lain muffler Note cooling air inlet louvers Heated air needs room escape mere must large airoutlets larger inlets Finish Sig dope lots elbow grease file inch-thick tail requires careful shaping ninge iine allowtull range movement Note hatch fuselage hinge line allow access elevator control horn detail points can make lot dnmerence wnen youre up top three Ruling pens dry transfers trick Slightly taperea nap isa constant 17% wing chord Lines details done Rapidograph technical pen available art stores Rignm wing features storage compartment forthe Jim WalkerTrophy unfortunately little bit premature FULL-SIZE PLANSAVAILABLE SEE PAGE 140 3/007/8 LEAOING EDGE ALL WACO VERY LIGHT BALSA I*4LESS NOTED GEALSYARLE-Ua LITE-PLY GEAR2 WIGS NOTE RIGHT WING 3/4 SHORTER TRAB LEFT tSAPPANTS WA-SPAR 3 RIGHT S LEFT FLAPS L IN LENGTH UFOOGOT FOTORE 4 FLAP STAGE LINE SWEPT FERWARA EACH SIDE 0--~ 050 K FOAM WINGUj KOHPBENN CAL HARSHMAPLE MOUNT -.-3 TSP FLITE BELL- & ______CRAMS MAY BEMAKE ROOT SAD TIP RIB TEMPLATEST WING PLANSLRATITOTED HEAVY LI1SEE TEST ROOT SECTION SOFT BALSA TIPS 571150 TPS NOTE FLAT SATE TO AVOIDTT THINSE HINGING FLAP PORN DO NOT STROSBACR HUHEXTEND HERN FARTHER INTOU - IV4AASA TV KLETT NOLANFLAP THAW SPAWN FOR THEUH3/RGSTAG H ELEVATOR BEARINGSASIE REAGANRIA V ORINS AVE FLAPSA' IE SR ETNALSA IVWMEASHINSA A1ARERIBS II OUTBOARD WINS TSPSCHAP BALSA SANGEA SUPPORTS 110 PLACES 9 GEE TEAT FOR MSV32 PLY--'VA FORTAWAS/3D PLA STAB Fl THRO F3 ARE VA PLY- FA TH FH AGE VA BALSA LATS AI/GHOST WIPE FFOFTF4EDERFTNAINO GEAR EV RIB SCRAGGALSAFILLETSV1 'I ENSHE GEFACT-V8SVEET BALSAWINO GAO SAIL 3/32/5 LOIWERAN 3/A s/S MAPLE ENOJIE MDGNTSTLRTLE DEVIATOR S BOTTOM BUCKS SHOALS BE KOLDED OR FLANKEDVA SOFT USE FOLLOWED BACKS ANLY F TRA UTE WOGE IS AVAILABLE GSA FILER ALOCAS COWL N TSP BLOCA• V32 PLY SLUWLEP MEDIUM GALSA HOLLOWEDcoHALVED LABORS V4 LLBASAIIANSVERTICAL STAB B S -ArII Fl- FTG -T"TI 42FTFII. 575 OZ SNIFLOW TANKIFUSELAGSIDEVI~ThWIPE NNUES H -CZiSG-3D BELLCAAIAA MNT BOLT 75 SPNSER-B FLOORVIG PLYAND NOTS-_ EHAXY Mt IAKRROAC WIREASASSOOPA VA VENTRAL FR VA FUSELAGE ENGINE ST AKCOALING ARCARVE WHEELRENTS TO SIDESS/A TOEWTEEL SR SIMIARSUTLETSTREAMLINE SHAPE FROM TWO LAMINATlANS GE I/A A-AC COWL HALO DOWNAND CR0 GE I/DT BALSA VAPLS CROSS MEMBERSDESIGNED B DRAWN BY TED FANCIER WING SJ NW 75 AREA BAA AS IN LENGTH 47WEIGHT BA-HA 02 TRACING BY StE DRIHARCO SAGAS 175 L5 BOUNCE STEELS 0 5 5 4 5 K WEXc/TA77ON showed itself last inverted corner triangles gave jerk through lines heart dropped stomach realized what happening wavered up down once twice wave good-bye moved handle ineffectually hoping wrong wasnt. controls failed went concrete quarter lap later scatter ing debris about feet very startled Bill Fitzgerald haps final rude gesture endless criticism performance through said let know Upon sober reflection became obvious methat Excitations perverse nature result demonic forces simply poor execution preparation part pilot final failurea broken pin heavy duty 4-40 Kwik-Linkwas almost surely caused extreme load placed line failure 10 months previously link should have replaced wasnt result outstanding Stunt ships last two years memory design proven performer highest levels competition worthy project anyone interested serious Stunt activity second Excitationprobably renamed superstitious reasonsis nearing completion shop written time however preparation execution will worthy Excitations aerobatic potential wont giving away again Construction Excitation designed early 1978 incorporates design characteristics tested proven Imitation MA September October1979 Specifically designs utilize higher normal aspect ratio wing blunt leading edges narrow chord nearly full-span flaps long tail moment moderate size low aspect ratio horizontal stab elevator Finally refined control system used consists longer length control horns larger 3-in diameter circu lar bellcrank moves smaller custom ary control surfaces Rather reiterate design logic features suggest reread Imitation article general hy potheses unchanged Excitation generally conventional con struction unusual feature very thick built up stabilizer elevator Ill deal some detail moment wing wish stab elevator available J K Custom Foam Wings 10261 Janice Lynn Cypress CA 90630 strongly urge builders especially just getting started competitive aerobatics take advantage expertise John Poynter Foam wings accomplished artisans such John others have done make over night Stunt success stories anything since George Aldrichs Nobler straight light what get cheap wings available variety degrees completion ultimate J K Master series come sheeted leading trailing edges installed shaped lite ply spar gear supports shown plans place also available gear supports few bucks less However supports cheap insurance since literally have destroy whole wing break loose extremely important ifyou cant fly smooth pavement time J K wings come complete assem bly instructions showing bellcrank installation method joining panels simple butt joint reinforced around lightweight glass cloth Hobbypoxy Formula II glue wing can course built up conven tional fashion using root tip templates shown plans employing appropriate spars planking cap strips historical D-tube construction method wing tips carved light balsa hollowed Add ermanent tip weight make provision dictated flight testing original carried about 3/4 1 oz final trim inboard tip should have adjustable leadout guides either shown plans own favorite system forward foam spar located during design interfere leadouts during adjustment safe side might want remove outer 6 foam spar inboard wing allow additional leadout movement wing flaps can either built up shown plans have some light rigid t could carved shape stress must rigid Flexible flaps create impossi ble flight trim problems Again allow swept-forward hinge line must either use two horns complex difficult build im possible tweak else use Werwage single horn method inserting horn plywood rib sandwich right root simple easy build tweakable basic fuselage box conventional con struction -in sheet sides 1/32 ply doub lers l x -in maple motor mounts long eron top allow attractive shaping bulkheads shown three parts very light blocks available especially aft CG use upper lower sections either planking 3/32 x ps molding 1/16 balsa sheet case cowling nose Continued page 132 December1981 47 IFYOU CAN FLYA FALCON 56. / L READY~ YOURE TO LEARN HOW TO FLY SCALE WITh OUR DYNAMIC TAIL DRAGGER TRAINER0 GEE BEE Sportster just another pretty airplane perfect model get tricycle landing gears tail draggers nothing true sport scale builds easier Sportster Average time build airframe 8-10 hours Plans & illustrated instructions quite simple follow Ask dealer show TAIL DRAGGER N. better known GEE BEE Sportster I 0The Tail Dragger Trainer copyrighted COVERITE J L 420 BABYLON ROAD HORSHAM PENNSYLVANIA 19044 U 5 RUBBER STRIP FAI RUBBERMade USA SIZES 1/4 3/16 1/8 3/32 1/16 1mm thick 042 BOXED 16 ounces rubber per box PRICE $1200 per box postpaid USA NEW PIRELLI SIZES 6mm 3mm 1mm thick PRICE $1800 per hankapprox 1/2 kg TIMERS KSB Fuel DT $1150 ea plus 10% UPS Sole US Distributors & World-wide Sales Send 25 1981 catalog FAIModel Supply ence brain Things start come gether wonder took long Another tack same subject Helicop ters about training gear pondered training gear longtime cricket has nice wide stance wanted something longer skids looked like belong Helicopter stead plumbers junk pile discovered polyethelene golf club separator tubes Take tube cut two Stuff one-half oblong styrofoam fishing bobber end use instant glue soda hold bobbers Cover tubes favorite contact Paper Make four clamps springy steel strapping clamp tubes main gear legs bobbers come grommets run inner Nyrod radio compartment through skid hold antenna skids cost about $150 pair make durable springy light easy clean look almost like pontoons allow fly taxi scoot sideways grass Finally have never seen another model chopper fly Are state regional national organizations devoted Are directories Helicopter pilots could contact need help turn can help based limited experience would willing eager get people started hobby Lastly Ive enclosed some pix Cricket Semper Humilis will notice training skids other minor mods landing gear tail boom Im against modifying just its own sake good reasons Ive found Cricket very durable stable re sponsive few minor mods Ive able fly day about two months maintenance being cleaning oiling says lot Cricket HB 25 PDP Futaba electronics especially knew what kind stresses have put through Thanks listening Tom Gibbons way Toms letter received August bad progress again rate progress individual thing Ive student solo Aeronca Champ five hours have another couldnt solo Cessna 150 fifteen yet satisfied first solo Glenn Willison have doing little flying nearby parking lot Glenn just began flying recently called some instruction trim-out Cricket think weve fun probably cant tell expres sions Um can just figure out two stick radios work Chesney Rt 9 Box 621-A Greensboro NC 27409 Excitation Fancher Continued page 4 block should carved light balsa blocks procedure build fuselage box tack-glue cowl turtle deck top bottom blocks place proceed shape whole works near completion Once shaped pop off blocks pin fuselage box upside down firmly large flat building board Cut out belly cradle carefully align install wing Use slow-drying glue make strong joint Measure remeasure measure again nothing critical performance tail built-up just like small wing Make 1/32 plywood templates root tip ribs Sandwich appropriate number 1/16 rib blanks between templates sand shape Glue ribs spars ensuring 90 degrees spar properly aligned Add scrap balsa supports hinges time drying cut skins very light 1/16 balsa sheet Two stab four elevator skins necessary First glue stab skins spars dry use small paint brush apply Titebond glue ribs top bottom Pin skins securely ribs ensure uniform adhesion dry use long sanding block make flush surface glue leading edge Cut slots favorite hinges Dump shavings out leading edge gap install shape ing edge complete elevators first cut hinge slots match stab apply sheeting both sides once Titebond Shape dry have used good wood sanitary construction techniques should now have 140 sq stab elevator weighs ito 1 oz Now time install tail right Wrong After building Stunt ships 25 years having tails end up crooked despite strenuous efforts finally broke code No matter carefully align stab attach top bottom blocks after tail glued place will invariably twist fuselage way another thereby destroying perfect alignment answer install controls down last minor bit pushrod adjustment Leave just little space fore aft move ment stab achieving exact neutral finally glue place Now proceed permanently attach turtledeck already attached bottom block Only after dry fuselage made rigid can 132 Model Aviation P0 Box 3957 Torrance CA 90510 fmally secure tail place sure will remain way major components assembled can get down detail work Cut shape rudder vertical stabilizer a Hinge rudder vertical stab soft wire rudder can adjusted Glue place conventional location top rear fuselage Cut ventral fin balsa Install tall wheel wire reinforcing medium weight glass cloth Formula II Hobb$poxy original canopy 040 butyrate plastic molded vacuum box However commercially-available canopies could employed hint back RC teardrop-shaped canopies lend themselves very well style degree cockpit detail choice used go whole hog seats seatbelts instru ments fire extinguishers etc Current trends leaning toward basics pilot head few instruments darkly tinted canopy simulated painted-on cockpit carved balsa blocks imaginative cockpit de tailing have personally seen employed high-ranking officer Atianta Stunt Con spiracy refuse give initials last name began Dixon Colonel Tom flew neatly-built Nobler untinted clear canopy through interested bystander could view beautifully painted black cockpit interior strip paper neatly glued floor typed two words Cockpit Detail comes innovation technological breakthroughs cant top rebels comes finish Ill defer masters Until can build plane fillets dont look like Mt Saint Helens wont pretend give advice Whatever type finish use make neat light thing know about paint heavy design have included standard pre drafting numbers-sheet detailing design para meters Excitation comparison Imitation numbers will plainly show Excitation nearly identical aerodynamically major difference highly tapered wing primarily appearance resulted swept-forward flap hinge line achieve 67% taper ratio straight hinge line would have resulted highiy swept leading edge order place aerodynamic center proper location fuselage forward leading edge would have needed very shorttoo short allow tank fit swept-forward flaps will work smoothly single horn carefully constructed per drawings important consideration arms enter flaps right root very strongjoint therefore mandatory make plywood sandwich shown ensure adequate strength sandwich epoxied directly root flap Final weight should low 50-oz range best performance Excitation 650 sq area small current standards Higher weights will still fly well power loading becomes marginal particularly vertical ma neuvers couple trimming suggestions longerarm control system provides adequate mechanical advantage over control-surface air loads under severe circumstances setup shown 3-in bellcrank 90-in pushrod arm bellerank 75-in control horn arms results sensitive system conven tional 4-in handle such Hot Rock encourage use Baron-style adjustable handle provide control sensitivity suits taste Adding nose weight airplane aerodynamically unstable done simply desensitize control feel results airplane trimmed less its full aerobatic potential Optimum center gravity CG location can determined through flight testing Move CG aft quarter inch time observe flight certain point ship will go effortlessly around corner hard flat no tendency hunt after controls neutral ized far aft position will primarily determiend K stability factor design such Excitation long tail moment and/or large tail area will accept further aft CG will design short and/or small area tail hard flat corner achieved ship will probably too sensitive tastedont add nose weighL next important indication proper CG manner ship glides engine quits CG too far aft engine quits ship will immediately go light lines nose up slightly Smooth approaches will difficult may become impossible possibly hazardous upwind such case add nose weight until control positive Unless have very small tall thus adequate K factor will achieve two goals within fraction inch same CG location youve found proper CG adjust handle line spacing fine-tune sensitivity taste Once have achieved combi nation will have airplane com fortable fly yet aerodynamically trimmed its maximum potential large reserve available merely opening up line can R/C dealer 0MODELMANIA TO OUR CLIL COTITTOS ESE 44 otOURLYN S MODEL TA- F IPT C Wt4800CLSN NY 24 RETNEFOCI 144 3 FROM STATEN ISLANE TO F El F 0440 EAST CONE bLANC RAE F IT N 011100 FLU TO OPEN MOMTE4EC 15 5' 5SF F TAMPTIT Too OATI2TS SPECIALS GOOF LATIL SN 450 SR OP -C NL4I MR44UFATORERS NAME 9ISOERAPT SYSTEMS WV AM 30250EP7C P41 7253 14 151 oEP 0 593SEPSO AM 72 1401511 SEPT00 3045EPSO AM 72 22 SEP00 3950P2K 41 72 21K SEPT00 3960EPOK 41 22 4 244 oEPSO 40975EPOK N 72 3 21 [EPTO 398$EPEOC ANY AM 7 3990KPR5C OF' AM 7 48804PC1411-15114 4010KPSIO450 GAblE FOR SPECIAL PRICES AOl CETRI SSOEP0I SIGARTURE SERIES ESTS P0 mAP CO P41 4030TORPLITE oEALINO 10010 4820I4EOCON MI! CEO OOc 040AICREL AER PIATCF TOO t 8 03 FINIoAI RE II OT PECIET ES TOPFL1TE OQACA STEPOLL10 0 POL ITT AAENC MO lIE CL P 41114 4 POLL 408$PICRO 8 PEAR P oICC EoT 19 951 OFLITARA PGE4 2 ER 0 FOOL PATE2 05P04 EAGLE III 504-IOOEPLE POPTEC 1588101 -01CR 4A0 0 TOOC 41OCtOREEG GE14TLC LAO So AIRTPON4C OLOPI 11 1 0 40 ORLIME REELALENET RONOT 0 FL 045 008 CORI 3440 ThOPPIFIO LW ESE DSPC OTES INvLLICC N oCLI AFIRE lEO E C CL ACE OROEP RECIPE [C 10 FOP C SEN ALL ORCECSINOJIRC ST L44AIIA F 0 800 470 P2T4,440 ROES yrIlL PEICES OLBOC 3 T 084 COK- 403 7 rPUP004430 L4l44OoL4PPE44T PILl PEE L 4 44136 SECEC0 Ci 0 0 bIlE Oi 1044 StEARS NO COO ALL PRICE IIILL ICE 00 ,4l4 fl4 1* T NAIlER 045 lIT TEl oNC.CoO, I N MT BALK TO TWAL C COF'C hU RRAI4K 8 4 513005L0C OF oW 00 P114 44100 1500550 010 00 00 ST ER 7808 ACE 01 44A F 1 S4C ZR 800 8FF C:TEA 04 00OIl F TOTAL FOP TAIPPIF4U OLL42141' IENC0SALES ARC FIlIAL ES! SIT IT L4IAL NECK TO CLEAR 44 AC bElT 440 10 ALES TAOENE A0E FF AL I4S TOE CROP ANT3 FE OUKIC PEOLIIEC RCT December1981 133 NOW ThERES PRIMER RECOMMENDED FOR COVEPITE New Primex solves nagging problem Now can sure first time getting great adhesion Now remove masking tape paint ioh will stay down Primex ultra-light smooth very quick dry Easy apply brush extremely sandable Primex now primer use Coverite ISuper Permagloss & Silkspun equally great wood tissue silk nylon dacron Look bright yellow 9CEVERITEJ L 420 BABYLON ROAD HORSHAM PENNSYLVANIA 19044 U S Year Limited nty Pre-Dnhled Props Avail Ask About Custom- Built KIORITZ Engines Deep Fins Optimum Cooling 21/4 Flywheel Small Magneto 1 5/am Six Bolt Aluminum Hub Carb Needles &Throttle Accessible Engine Running Godfrey Points Sealed Rear Housing $19995 pay shIp pre-paid orders Mufflers Now Availablel DEALERS WELCOME 242 cc 397ccSPECIFICATIONS 32HP 8000 rpmWoibto Pomp CarbBall Bearmngs Crank ght B b3 Riog PistonCaged Rollers Rod ond Foton Finn GIBBS HOBBY & RESEARCH 6195 HIlifleld St NW N CANTON OHIO 44720 Phone 21 6 499-8854 after 600 PM C ELECTRONIC SERVICENTER FACTORY AUTHORIZED WARRANTY SERVICE FOR KRAFT over 35 other manufacturers Tired wasting money radio service os per formance too important jeopardized inexperien ced uncaring technician company just person re pairs RC equipment RCer cares about radio ME 24 HOUR SERVICE NEAL WARREN 3 South 21St Street erPh iladelphia PA 19103 Tel 215 564-0800 24 HOUR SERVICE Mon-Fri 9AM-53OPM AO Wed night till 8PM Sat 9AM Noon spacing important capability flying high winds An airplane aerodynamically detuned through addition nose weight will have no reserve turn available conditions demand conclusion Excitation merely another Nobler new cosmetics truly better mousetrap designed fill mans demands capability adapt variety flying styles Simply because has way performance available ever called win todays Precision Aerobatics arena properly trimmed Excitation can adjusted suit Precision Aerobatics flier about CL Scale/Byron Continued page 49 East Coast am sure several people familiar aircraft also excel lent photographer pictures reflect An out standing aircraft Profile Publications has come atten tion Profile Publications being put back print again outstanding modeling assistance Scale modelers am looking forward acquiring entire series now have about 70 something Scale modeler should have because value 5-views come publication probably will expensive past will worth penny serious Scale modeler historian Look advertised upcoming issues of model magazines Dont let slide through hands like once did Richard P Byron 2506 So 16 1st Circle Omaha NE 68130 CL Racing/Lee Continued page 50 ing Racing headed us has own opinion since have pencil hand heres Ther will probably always core avid AMA Racing enthusiasts likelihood ones will always found Nats sad part year after year hard-nosed group seems little smaller year before isnt new infusion interest provide numbers used exist have Racers gone What needs done get interest back lot has written about various Racing events types events column other publications generally accepted term inology coined Jim Thomerson True Sport TS Just Another Racing JAR event Basically TS event extremely specific its rules effort allow sport flier use sport flying equipment competitive TS event should capable being flown equipment available local hobby shop dominated nonavailable equipment various TS events have heard recently generally specify engine brand model plane configuration etc JAR event usually limited version normal AMA Racing event Rules added keep performance level down general events leave lot room progress events tend follow same curve popularity AMA events have followed initial burst popularity being followed decline interest rules 134 Model Aviation K IORIT ENGINES BY GIBBS HOBBY & RESEARCH Original Developer Factory Trained Authorized Master Service Dealer r7
Edition: Model Aviation - 1981/12
Page Numbers: 44, 45, 46, 47, 132, 133, 134
If have interest form corn petition story must reading authors odyssey through three Nats two close-butno-champagne endings culminating heartbreaker striking whether youre CL Precision Aerobatics Plans cluded construction very special airplane@Ted Fancher EXCITATION Little did know time chose name prophetic would become Never experience has airplane taken its builder/flier such emotional roller coaster ride did late almost great Excitation Excitation completed spring 1978 After period flight testing trim ming convinced machine would competitive best would necessity Lincoln Natt would mark return top competitors unable compete 1978 due atten dance World Championships would no easy wins Lincoln Victories two local California contests July proved Excitations ability score well flew left Nats optimistic state mind optimism appeared well-founded end qualifying semi-finals third place very much chase National Championship Unfortunately morning Walker Cup flyoff awoke Stunt fliers night maregale force winds aday airplanes tied tool boxes blown away hats tents impossible judging flying conditionsa real Stunt event opposed Precision Aerobatics championship Excitation performed admirably although definitely need horsepower ST40 capable providing Despite flying highest score second round having legitimate shot Walker Cup right up last flight day total effort up demands day competi tion ended up 5th place satisfactory totally satisfying national debut Although somewhat disappointed felt learned great deal Lincoln experience First foremost ST40 although ade quate conditions did provide reserve horsepower necessary top perform ances under poor conditions advantage 40 its use allowed Excitation legally flown 015 cables thought reduction drag thus achieved outweighed potential loss torque avallable larger engine performance Lincoln proved wrong however simple curea drawer full outstanding Vic Garner-prepared ST46s would drop right Since next major competition FAL Team Trials Dayton following month could use 46 018 anchor chalns required AMA rules inasmuch FAI rules require no minimum line diameter horsepower less drag equals increased performance event convinced 015 lines strong enough pay dearly conviction Once again took off beautiful San Francisco peninsula live Excita tion baggage pitand visions Poland dancing head Surely after performing near stand-off its anemic Lincoln condition new Charles Atlas-ized Excitation could finally leading rather scrambling pack Oh nearly first day Dayton appeared though indeed week last Hot muggy weather resultant high density alti tudes top guns scratching heads werent catching floundering airplanes fell out thin calm dead Ohio skies Excitation other hand performing perfectlyflying little 44 Model Aviation faster sure purposely gener ally taking delight its new-found muscles Such state affairs day qualifying everyone looking breath air finding noneand Excitation perform ing better ever end day topnot little sizable margin having highest score qualifying rounds Cloud Nine going far call Shareen #1 supporter telling shed better get some books speaking Polish good Talk about premature could write new definition Mr Webster two rounds following day things con tinued going way Most pilots still fighting dead airwith notable exception Stiletto McDonaldand going third last round very solid second place again shot * 1 just put practice flight about mentor impossible-to-please critic Bill Fitzgerald stated Youre finally starting get idea Such staggering praise first good thing say week pumped up moved pull-test area last flight convinced no way could kept off team Years hard work about pay off ever man ready OK Ted pull Ill release No sweat done thousand times never problem snap jerk.my lines perhaps heart up line broke.damn dont have spare lines dumb dumb dumb Wynn Paul asks What size lines need Ted dont know cant think come controls dont work What mean Theyre jammed full down Terrific something inside must have broken Bob Whitely Bart Klapinski bring knife surgery begins Bob Hunt Ted have fly after next flight lose turn incision complete bellcrank has swung past 1800 jammed over center fingers crossed force back. okay now .sure sure is. has .theres no time voice crowd flaps elevators bothdown.oh its trimmed way.no little down lot.what now .something must bentcontrol horn push rod.no way tell Bob Hunt Ted must fly now pass Oh boy go.is handle set right.who knows. ease wing-over. whoops well least know handle isnt right .try adjust inverted flight.nothings right. wont turn outside. almost stuck time. disaster ster k God its over ever over After numbers made team fallen pinnacle ignominious 6th Place emotional wreck came close quitting competition ever have Excita tion proving itself aptly named Unfortunately Jekyll Hyde relation ship capricious lady quite over As learn through toying emotions abusing psyche would let know finality complete examination home uncov ered severe trauma control system includ ing control horn twisted about 200 force jammed controlswhich caused previously inexplicable condition both flaps elevators being down about 150 same time also broken solder joint December 1981 45 According 10 aumnor on-field dis assembly allows model stored compact shipping case Extra small pieces stored Windy Urtnowskis Sweeper van rough facsimile author peers around edge instrument panel canopy dyed dark blue fabric dye photos author between arms horn flap control horn Surgery performed affected areas after recuperative retrimming Devil Lady appeared ready another sault Walker Cup Come 1980 made last pilgrimage Ohio Wilmington Nats Early week things going well prepared well before having trouble adjusting two days travel sleep finals held second day would have spectator perhaps happier thout knowing After day practice two days qualifying rounds very nearly disastrous first round semi-finals finally health airplane act together same time place fourth year row 3rd place entering Walker Cup flyoff once again optimism creeping out onto sleeve could lose sincere Let tell morning finals dawned little cloudy blustery no rain appeared imminent conditions ideal certainly superior Lincolns gales crack dawn unflappable buddy Bill Fitzgerald holding Garner ST46 barked life first planned three warm-up flights prior start compe tition uncharacteristically Excitation came off little rich cool morning air went perfunctorily through slow sloppy pattern rnn out both fuel nervous jitters After completing pattern habitually three outside triangles clear lines landing now Excitations final perversity 46 Model Aviation Supertigre 46 prepared author vu uarner sports Adam lain muffler Note cooling air inlet louvers Heated air needs room escape mere must large airoutlets larger inlets Finish Sig dope lots elbow grease file inch-thick tail requires careful shaping ninge iine allowtull range movement Note hatch fuselage hinge line allow access elevator control horn detail points can make lot dnmerence wnen youre up top three Ruling pens dry transfers trick Slightly taperea nap isa constant 17% wing chord Lines details done Rapidograph technical pen available art stores Rignm wing features storage compartment forthe Jim WalkerTrophy unfortunately little bit premature FULL-SIZE PLANSAVAILABLE SEE PAGE 140 3/007/8 LEAOING EDGE ALL WACO VERY LIGHT BALSA I*4LESS NOTED GEALSYARLE-Ua LITE-PLY GEAR2 WIGS NOTE RIGHT WING 3/4 SHORTER TRAB LEFT tSAPPANTS WA-SPAR 3 RIGHT S LEFT FLAPS L IN LENGTH UFOOGOT FOTORE 4 FLAP STAGE LINE SWEPT FERWARA EACH SIDE 0--~ 050 K FOAM WINGUj KOHPBENN CAL HARSHMAPLE MOUNT -.-3 TSP FLITE BELL- & ______CRAMS MAY BEMAKE ROOT SAD TIP RIB TEMPLATEST WING PLANSLRATITOTED HEAVY LI1SEE TEST ROOT SECTION SOFT BALSA TIPS 571150 TPS NOTE FLAT SATE TO AVOIDTT THINSE HINGING FLAP PORN DO NOT STROSBACR HUHEXTEND HERN FARTHER INTOU - IV4AASA TV KLETT NOLANFLAP THAW SPAWN FOR THEUH3/RGSTAG H ELEVATOR BEARINGSASIE REAGANRIA V ORINS AVE FLAPSA' IE SR ETNALSA IVWMEASHINSA A1ARERIBS II OUTBOARD WINS TSPSCHAP BALSA SANGEA SUPPORTS 110 PLACES 9 GEE TEAT FOR MSV32 PLY--'VA FORTAWAS/3D PLA STAB Fl THRO F3 ARE VA PLY- FA TH FH AGE VA BALSA LATS AI/GHOST WIPE FFOFTF4EDERFTNAINO GEAR EV RIB SCRAGGALSAFILLETSV1 'I ENSHE GEFACT-V8SVEET BALSAWINO GAO SAIL 3/32/5 LOIWERAN 3/A s/S MAPLE ENOJIE MDGNTSTLRTLE DEVIATOR S BOTTOM BUCKS SHOALS BE KOLDED OR FLANKEDVA SOFT USE FOLLOWED BACKS ANLY F TRA UTE WOGE IS AVAILABLE GSA FILER ALOCAS COWL N TSP BLOCA• V32 PLY SLUWLEP MEDIUM GALSA HOLLOWEDcoHALVED LABORS V4 LLBASAIIANSVERTICAL STAB B S -ArII Fl- FTG -T"TI 42FTFII. 575 OZ SNIFLOW TANKIFUSELAGSIDEVI~ThWIPE NNUES H -CZiSG-3D BELLCAAIAA MNT BOLT 75 SPNSER-B FLOORVIG PLYAND NOTS-_ EHAXY Mt IAKRROAC WIREASASSOOPA VA VENTRAL FR VA FUSELAGE ENGINE ST AKCOALING ARCARVE WHEELRENTS TO SIDESS/A TOEWTEEL SR SIMIARSUTLETSTREAMLINE SHAPE FROM TWO LAMINATlANS GE I/A A-AC COWL HALO DOWNAND CR0 GE I/DT BALSA VAPLS CROSS MEMBERSDESIGNED B DRAWN BY TED FANCIER WING SJ NW 75 AREA BAA AS IN LENGTH 47WEIGHT BA-HA 02 TRACING BY StE DRIHARCO SAGAS 175 L5 BOUNCE STEELS 0 5 5 4 5 K WEXc/TA77ON showed itself last inverted corner triangles gave jerk through lines heart dropped stomach realized what happening wavered up down once twice wave good-bye moved handle ineffectually hoping wrong wasnt. controls failed went concrete quarter lap later scatter ing debris about feet very startled Bill Fitzgerald haps final rude gesture endless criticism performance through said let know Upon sober reflection became obvious methat Excitations perverse nature result demonic forces simply poor execution preparation part pilot final failurea broken pin heavy duty 4-40 Kwik-Linkwas almost surely caused extreme load placed line failure 10 months previously link should have replaced wasnt result outstanding Stunt ships last two years memory design proven performer highest levels competition worthy project anyone interested serious Stunt activity second Excitationprobably renamed superstitious reasonsis nearing completion shop written time however preparation execution will worthy Excitations aerobatic potential wont giving away again Construction Excitation designed early 1978 incorporates design characteristics tested proven Imitation MA September October1979 Specifically designs utilize higher normal aspect ratio wing blunt leading edges narrow chord nearly full-span flaps long tail moment moderate size low aspect ratio horizontal stab elevator Finally refined control system used consists longer length control horns larger 3-in diameter circu lar bellcrank moves smaller custom ary control surfaces Rather reiterate design logic features suggest reread Imitation article general hy potheses unchanged Excitation generally conventional con struction unusual feature very thick built up stabilizer elevator Ill deal some detail moment wing wish stab elevator available J K Custom Foam Wings 10261 Janice Lynn Cypress CA 90630 strongly urge builders especially just getting started competitive aerobatics take advantage expertise John Poynter Foam wings accomplished artisans such John others have done make over night Stunt success stories anything since George Aldrichs Nobler straight light what get cheap wings available variety degrees completion ultimate J K Master series come sheeted leading trailing edges installed shaped lite ply spar gear supports shown plans place also available gear supports few bucks less However supports cheap insurance since literally have destroy whole wing break loose extremely important ifyou cant fly smooth pavement time J K wings come complete assem bly instructions showing bellcrank installation method joining panels simple butt joint reinforced around lightweight glass cloth Hobbypoxy Formula II glue wing can course built up conven tional fashion using root tip templates shown plans employing appropriate spars planking cap strips historical D-tube construction method wing tips carved light balsa hollowed Add ermanent tip weight make provision dictated flight testing original carried about 3/4 1 oz final trim inboard tip should have adjustable leadout guides either shown plans own favorite system forward foam spar located during design interfere leadouts during adjustment safe side might want remove outer 6 foam spar inboard wing allow additional leadout movement wing flaps can either built up shown plans have some light rigid t could carved shape stress must rigid Flexible flaps create impossi ble flight trim problems Again allow swept-forward hinge line must either use two horns complex difficult build im possible tweak else use Werwage single horn method inserting horn plywood rib sandwich right root simple easy build tweakable basic fuselage box conventional con struction -in sheet sides 1/32 ply doub lers l x -in maple motor mounts long eron top allow attractive shaping bulkheads shown three parts very light blocks available especially aft CG use upper lower sections either planking 3/32 x ps molding 1/16 balsa sheet case cowling nose Continued page 132 December1981 47 IFYOU CAN FLYA FALCON 56. / L READY~ YOURE TO LEARN HOW TO FLY SCALE WITh OUR DYNAMIC TAIL DRAGGER TRAINER0 GEE BEE Sportster just another pretty airplane perfect model get tricycle landing gears tail draggers nothing true sport scale builds easier Sportster Average time build airframe 8-10 hours Plans & illustrated instructions quite simple follow Ask dealer show TAIL DRAGGER N. better known GEE BEE Sportster I 0The Tail Dragger Trainer copyrighted COVERITE J L 420 BABYLON ROAD HORSHAM PENNSYLVANIA 19044 U 5 RUBBER STRIP FAI RUBBERMade USA SIZES 1/4 3/16 1/8 3/32 1/16 1mm thick 042 BOXED 16 ounces rubber per box PRICE $1200 per box postpaid USA NEW PIRELLI SIZES 6mm 3mm 1mm thick PRICE $1800 per hankapprox 1/2 kg TIMERS KSB Fuel DT $1150 ea plus 10% UPS Sole US Distributors & World-wide Sales Send 25 1981 catalog FAIModel Supply ence brain Things start come gether wonder took long Another tack same subject Helicop ters about training gear pondered training gear longtime cricket has nice wide stance wanted something longer skids looked like belong Helicopter stead plumbers junk pile discovered polyethelene golf club separator tubes Take tube cut two Stuff one-half oblong styrofoam fishing bobber end use instant glue soda hold bobbers Cover tubes favorite contact Paper Make four clamps springy steel strapping clamp tubes main gear legs bobbers come grommets run inner Nyrod radio compartment through skid hold antenna skids cost about $150 pair make durable springy light easy clean look almost like pontoons allow fly taxi scoot sideways grass Finally have never seen another model chopper fly Are state regional national organizations devoted Are directories Helicopter pilots could contact need help turn can help based limited experience would willing eager get people started hobby Lastly Ive enclosed some pix Cricket Semper Humilis will notice training skids other minor mods landing gear tail boom Im against modifying just its own sake good reasons Ive found Cricket very durable stable re sponsive few minor mods Ive able fly day about two months maintenance being cleaning oiling says lot Cricket HB 25 PDP Futaba electronics especially knew what kind stresses have put through Thanks listening Tom Gibbons way Toms letter received August bad progress again rate progress individual thing Ive student solo Aeronca Champ five hours have another couldnt solo Cessna 150 fifteen yet satisfied first solo Glenn Willison have doing little flying nearby parking lot Glenn just began flying recently called some instruction trim-out Cricket think weve fun probably cant tell expres sions Um can just figure out two stick radios work Chesney Rt 9 Box 621-A Greensboro NC 27409 Excitation Fancher Continued page 4 block should carved light balsa blocks procedure build fuselage box tack-glue cowl turtle deck top bottom blocks place proceed shape whole works near completion Once shaped pop off blocks pin fuselage box upside down firmly large flat building board Cut out belly cradle carefully align install wing Use slow-drying glue make strong joint Measure remeasure measure again nothing critical performance tail built-up just like small wing Make 1/32 plywood templates root tip ribs Sandwich appropriate number 1/16 rib blanks between templates sand shape Glue ribs spars ensuring 90 degrees spar properly aligned Add scrap balsa supports hinges time drying cut skins very light 1/16 balsa sheet Two stab four elevator skins necessary First glue stab skins spars dry use small paint brush apply Titebond glue ribs top bottom Pin skins securely ribs ensure uniform adhesion dry use long sanding block make flush surface glue leading edge Cut slots favorite hinges Dump shavings out leading edge gap install shape ing edge complete elevators first cut hinge slots match stab apply sheeting both sides once Titebond Shape dry have used good wood sanitary construction techniques should now have 140 sq stab elevator weighs ito 1 oz Now time install tail right Wrong After building Stunt ships 25 years having tails end up crooked despite strenuous efforts finally broke code No matter carefully align stab attach top bottom blocks after tail glued place will invariably twist fuselage way another thereby destroying perfect alignment answer install controls down last minor bit pushrod adjustment Leave just little space fore aft move ment stab achieving exact neutral finally glue place Now proceed permanently attach turtledeck already attached bottom block Only after dry fuselage made rigid can 132 Model Aviation P0 Box 3957 Torrance CA 90510 fmally secure tail place sure will remain way major components assembled can get down detail work Cut shape rudder vertical stabilizer a Hinge rudder vertical stab soft wire rudder can adjusted Glue place conventional location top rear fuselage Cut ventral fin balsa Install tall wheel wire reinforcing medium weight glass cloth Formula II Hobb$poxy original canopy 040 butyrate plastic molded vacuum box However commercially-available canopies could employed hint back RC teardrop-shaped canopies lend themselves very well style degree cockpit detail choice used go whole hog seats seatbelts instru ments fire extinguishers etc Current trends leaning toward basics pilot head few instruments darkly tinted canopy simulated painted-on cockpit carved balsa blocks imaginative cockpit de tailing have personally seen employed high-ranking officer Atianta Stunt Con spiracy refuse give initials last name began Dixon Colonel Tom flew neatly-built Nobler untinted clear canopy through interested bystander could view beautifully painted black cockpit interior strip paper neatly glued floor typed two words Cockpit Detail comes innovation technological breakthroughs cant top rebels comes finish Ill defer masters Until can build plane fillets dont look like Mt Saint Helens wont pretend give advice Whatever type finish use make neat light thing know about paint heavy design have included standard pre drafting numbers-sheet detailing design para meters Excitation comparison Imitation numbers will plainly show Excitation nearly identical aerodynamically major difference highly tapered wing primarily appearance resulted swept-forward flap hinge line achieve 67% taper ratio straight hinge line would have resulted highiy swept leading edge order place aerodynamic center proper location fuselage forward leading edge would have needed very shorttoo short allow tank fit swept-forward flaps will work smoothly single horn carefully constructed per drawings important consideration arms enter flaps right root very strongjoint therefore mandatory make plywood sandwich shown ensure adequate strength sandwich epoxied directly root flap Final weight should low 50-oz range best performance Excitation 650 sq area small current standards Higher weights will still fly well power loading becomes marginal particularly vertical ma neuvers couple trimming suggestions longerarm control system provides adequate mechanical advantage over control-surface air loads under severe circumstances setup shown 3-in bellcrank 90-in pushrod arm bellerank 75-in control horn arms results sensitive system conven tional 4-in handle such Hot Rock encourage use Baron-style adjustable handle provide control sensitivity suits taste Adding nose weight airplane aerodynamically unstable done simply desensitize control feel results airplane trimmed less its full aerobatic potential Optimum center gravity CG location can determined through flight testing Move CG aft quarter inch time observe flight certain point ship will go effortlessly around corner hard flat no tendency hunt after controls neutral ized far aft position will primarily determiend K stability factor design such Excitation long tail moment and/or large tail area will accept further aft CG will design short and/or small area tail hard flat corner achieved ship will probably too sensitive tastedont add nose weighL next important indication proper CG manner ship glides engine quits CG too far aft engine quits ship will immediately go light lines nose up slightly Smooth approaches will difficult may become impossible possibly hazardous upwind such case add nose weight until control positive Unless have very small tall thus adequate K factor will achieve two goals within fraction inch same CG location youve found proper CG adjust handle line spacing fine-tune sensitivity taste Once have achieved combi nation will have airplane com fortable fly yet aerodynamically trimmed its maximum potential large reserve available merely opening up line can R/C dealer 0MODELMANIA TO OUR CLIL COTITTOS ESE 44 otOURLYN S MODEL TA- F IPT C Wt4800CLSN NY 24 RETNEFOCI 144 3 FROM STATEN ISLANE TO F El F 0440 EAST CONE bLANC RAE F IT N 011100 FLU TO OPEN MOMTE4EC 15 5' 5SF F TAMPTIT Too OATI2TS SPECIALS GOOF LATIL SN 450 SR OP -C NL4I MR44UFATORERS NAME 9ISOERAPT SYSTEMS WV AM 30250EP7C P41 7253 14 151 oEP 0 593SEPSO AM 72 1401511 SEPT00 3045EPSO AM 72 22 SEP00 3950P2K 41 72 21K SEPT00 3960EPOK 41 22 4 244 oEPSO 40975EPOK N 72 3 21 [EPTO 398$EPEOC ANY AM 7 3990KPR5C OF' AM 7 48804PC1411-15114 4010KPSIO450 GAblE FOR SPECIAL PRICES AOl CETRI SSOEP0I SIGARTURE SERIES ESTS P0 mAP CO P41 4030TORPLITE oEALINO 10010 4820I4EOCON MI! CEO OOc 040AICREL AER PIATCF TOO t 8 03 FINIoAI RE II OT PECIET ES TOPFL1TE OQACA STEPOLL10 0 POL ITT AAENC MO lIE CL P 41114 4 POLL 408$PICRO 8 PEAR P oICC EoT 19 951 OFLITARA PGE4 2 ER 0 FOOL PATE2 05P04 EAGLE III 504-IOOEPLE POPTEC 1588101 -01CR 4A0 0 TOOC 41OCtOREEG GE14TLC LAO So AIRTPON4C OLOPI 11 1 0 40 ORLIME REELALENET RONOT 0 FL 045 008 CORI 3440 ThOPPIFIO LW ESE DSPC OTES INvLLICC N oCLI AFIRE lEO E C CL ACE OROEP RECIPE [C 10 FOP C SEN ALL ORCECSINOJIRC ST L44AIIA F 0 800 470 P2T4,440 ROES yrIlL PEICES OLBOC 3 T 084 COK- 403 7 rPUP004430 L4l44OoL4PPE44T PILl PEE L 4 44136 SECEC0 Ci 0 0 bIlE Oi 1044 StEARS NO COO ALL PRICE IIILL ICE 00 ,4l4 fl4 1* T NAIlER 045 lIT TEl oNC.CoO, I N MT BALK TO TWAL C COF'C hU RRAI4K 8 4 513005L0C OF oW 00 P114 44100 1500550 010 00 00 ST ER 7808 ACE 01 44A F 1 S4C ZR 800 8FF C:TEA 04 00OIl F TOTAL FOP TAIPPIF4U OLL42141' IENC0SALES ARC FIlIAL ES! SIT IT L4IAL NECK TO CLEAR 44 AC bElT 440 10 ALES TAOENE A0E FF AL I4S TOE CROP ANT3 FE OUKIC PEOLIIEC RCT December1981 133 NOW ThERES PRIMER RECOMMENDED FOR COVEPITE New Primex solves nagging problem Now can sure first time getting great adhesion Now remove masking tape paint ioh will stay down Primex ultra-light smooth very quick dry Easy apply brush extremely sandable Primex now primer use Coverite ISuper Permagloss & Silkspun equally great wood tissue silk nylon dacron Look bright yellow 9CEVERITEJ L 420 BABYLON ROAD HORSHAM PENNSYLVANIA 19044 U S Year Limited nty Pre-Dnhled Props Avail Ask About Custom- Built KIORITZ Engines Deep Fins Optimum Cooling 21/4 Flywheel Small Magneto 1 5/am Six Bolt Aluminum Hub Carb Needles &Throttle Accessible Engine Running Godfrey Points Sealed Rear Housing $19995 pay shIp pre-paid orders Mufflers Now Availablel DEALERS WELCOME 242 cc 397ccSPECIFICATIONS 32HP 8000 rpmWoibto Pomp CarbBall Bearmngs Crank ght B b3 Riog PistonCaged Rollers Rod ond Foton Finn GIBBS HOBBY & RESEARCH 6195 HIlifleld St NW N CANTON OHIO 44720 Phone 21 6 499-8854 after 600 PM C ELECTRONIC SERVICENTER FACTORY AUTHORIZED WARRANTY SERVICE FOR KRAFT over 35 other manufacturers Tired wasting money radio service os per formance too important jeopardized inexperien ced uncaring technician company just person re pairs RC equipment RCer cares about radio ME 24 HOUR SERVICE NEAL WARREN 3 South 21St Street erPh iladelphia PA 19103 Tel 215 564-0800 24 HOUR SERVICE Mon-Fri 9AM-53OPM AO Wed night till 8PM Sat 9AM Noon spacing important capability flying high winds An airplane aerodynamically detuned through addition nose weight will have no reserve turn available conditions demand conclusion Excitation merely another Nobler new cosmetics truly better mousetrap designed fill mans demands capability adapt variety flying styles Simply because has way performance available ever called win todays Precision Aerobatics arena properly trimmed Excitation can adjusted suit Precision Aerobatics flier about CL Scale/Byron Continued page 49 East Coast am sure several people familiar aircraft also excel lent photographer pictures reflect An out standing aircraft Profile Publications has come atten tion Profile Publications being put back print again outstanding modeling assistance Scale modelers am looking forward acquiring entire series now have about 70 something Scale modeler should have because value 5-views come publication probably will expensive past will worth penny serious Scale modeler historian Look advertised upcoming issues of model magazines Dont let slide through hands like once did Richard P Byron 2506 So 16 1st Circle Omaha NE 68130 CL Racing/Lee Continued page 50 ing Racing headed us has own opinion since have pencil hand heres Ther will probably always core avid AMA Racing enthusiasts likelihood ones will always found Nats sad part year after year hard-nosed group seems little smaller year before isnt new infusion interest provide numbers used exist have Racers gone What needs done get interest back lot has written about various Racing events types events column other publications generally accepted term inology coined Jim Thomerson True Sport TS Just Another Racing JAR event Basically TS event extremely specific its rules effort allow sport flier use sport flying equipment competitive TS event should capable being flown equipment available local hobby shop dominated nonavailable equipment various TS events have heard recently generally specify engine brand model plane configuration etc JAR event usually limited version normal AMA Racing event Rules added keep performance level down general events leave lot room progress events tend follow same curve popularity AMA events have followed initial burst popularity being followed decline interest rules 134 Model Aviation K IORIT ENGINES BY GIBBS HOBBY & RESEARCH Original Developer Factory Trained Authorized Master Service Dealer r7
Edition: Model Aviation - 1981/12
Page Numbers: 44, 45, 46, 47, 132, 133, 134
If have interest form corn petition story must reading authors odyssey through three Nats two close-butno-champagne endings culminating heartbreaker striking whether youre CL Precision Aerobatics Plans cluded construction very special airplane@Ted Fancher EXCITATION Little did know time chose name prophetic would become Never experience has airplane taken its builder/flier such emotional roller coaster ride did late almost great Excitation Excitation completed spring 1978 After period flight testing trim ming convinced machine would competitive best would necessity Lincoln Natt would mark return top competitors unable compete 1978 due atten dance World Championships would no easy wins Lincoln Victories two local California contests July proved Excitations ability score well flew left Nats optimistic state mind optimism appeared well-founded end qualifying semi-finals third place very much chase National Championship Unfortunately morning Walker Cup flyoff awoke Stunt fliers night maregale force winds aday airplanes tied tool boxes blown away hats tents impossible judging flying conditionsa real Stunt event opposed Precision Aerobatics championship Excitation performed admirably although definitely need horsepower ST40 capable providing Despite flying highest score second round having legitimate shot Walker Cup right up last flight day total effort up demands day competi tion ended up 5th place satisfactory totally satisfying national debut Although somewhat disappointed felt learned great deal Lincoln experience First foremost ST40 although ade quate conditions did provide reserve horsepower necessary top perform ances under poor conditions advantage 40 its use allowed Excitation legally flown 015 cables thought reduction drag thus achieved outweighed potential loss torque avallable larger engine performance Lincoln proved wrong however simple curea drawer full outstanding Vic Garner-prepared ST46s would drop right Since next major competition FAL Team Trials Dayton following month could use 46 018 anchor chalns required AMA rules inasmuch FAI rules require no minimum line diameter horsepower less drag equals increased performance event convinced 015 lines strong enough pay dearly conviction Once again took off beautiful San Francisco peninsula live Excita tion baggage pitand visions Poland dancing head Surely after performing near stand-off its anemic Lincoln condition new Charles Atlas-ized Excitation could finally leading rather scrambling pack Oh nearly first day Dayton appeared though indeed week last Hot muggy weather resultant high density alti tudes top guns scratching heads werent catching floundering airplanes fell out thin calm dead Ohio skies Excitation other hand performing perfectlyflying little 44 Model Aviation faster sure purposely gener ally taking delight its new-found muscles Such state affairs day qualifying everyone looking breath air finding noneand Excitation perform ing better ever end day topnot little sizable margin having highest score qualifying rounds Cloud Nine going far call Shareen #1 supporter telling shed better get some books speaking Polish good Talk about premature could write new definition Mr Webster two rounds following day things con tinued going way Most pilots still fighting dead airwith notable exception Stiletto McDonaldand going third last round very solid second place again shot * 1 just put practice flight about mentor impossible-to-please critic Bill Fitzgerald stated Youre finally starting get idea Such staggering praise first good thing say week pumped up moved pull-test area last flight convinced no way could kept off team Years hard work about pay off ever man ready OK Ted pull Ill release No sweat done thousand times never problem snap jerk.my lines perhaps heart up line broke.damn dont have spare lines dumb dumb dumb Wynn Paul asks What size lines need Ted dont know cant think come controls dont work What mean Theyre jammed full down Terrific something inside must have broken Bob Whitely Bart Klapinski bring knife surgery begins Bob Hunt Ted have fly after next flight lose turn incision complete bellcrank has swung past 1800 jammed over center fingers crossed force back. okay now .sure sure is. has .theres no time voice crowd flaps elevators bothdown.oh its trimmed way.no little down lot.what now .something must bentcontrol horn push rod.no way tell Bob Hunt Ted must fly now pass Oh boy go.is handle set right.who knows. ease wing-over. whoops well least know handle isnt right .try adjust inverted flight.nothings right. wont turn outside. almost stuck time. disaster ster k God its over ever over After numbers made team fallen pinnacle ignominious 6th Place emotional wreck came close quitting competition ever have Excita tion proving itself aptly named Unfortunately Jekyll Hyde relation ship capricious lady quite over As learn through toying emotions abusing psyche would let know finality complete examination home uncov ered severe trauma control system includ ing control horn twisted about 200 force jammed controlswhich caused previously inexplicable condition both flaps elevators being down about 150 same time also broken solder joint December 1981 45 According 10 aumnor on-field dis assembly allows model stored compact shipping case Extra small pieces stored Windy Urtnowskis Sweeper van rough facsimile author peers around edge instrument panel canopy dyed dark blue fabric dye photos author between arms horn flap control horn Surgery performed affected areas after recuperative retrimming Devil Lady appeared ready another sault Walker Cup Come 1980 made last pilgrimage Ohio Wilmington Nats Early week things going well prepared well before having trouble adjusting two days travel sleep finals held second day would have spectator perhaps happier thout knowing After day practice two days qualifying rounds very nearly disastrous first round semi-finals finally health airplane act together same time place fourth year row 3rd place entering Walker Cup flyoff once again optimism creeping out onto sleeve could lose sincere Let tell morning finals dawned little cloudy blustery no rain appeared imminent conditions ideal certainly superior Lincolns gales crack dawn unflappable buddy Bill Fitzgerald holding Garner ST46 barked life first planned three warm-up flights prior start compe tition uncharacteristically Excitation came off little rich cool morning air went perfunctorily through slow sloppy pattern rnn out both fuel nervous jitters After completing pattern habitually three outside triangles clear lines landing now Excitations final perversity 46 Model Aviation Supertigre 46 prepared author vu uarner sports Adam lain muffler Note cooling air inlet louvers Heated air needs room escape mere must large airoutlets larger inlets Finish Sig dope lots elbow grease file inch-thick tail requires careful shaping ninge iine allowtull range movement Note hatch fuselage hinge line allow access elevator control horn detail points can make lot dnmerence wnen youre up top three Ruling pens dry transfers trick Slightly taperea nap isa constant 17% wing chord Lines details done Rapidograph technical pen available art stores Rignm wing features storage compartment forthe Jim WalkerTrophy unfortunately little bit premature FULL-SIZE PLANSAVAILABLE SEE PAGE 140 3/007/8 LEAOING EDGE ALL WACO VERY LIGHT BALSA I*4LESS NOTED GEALSYARLE-Ua LITE-PLY GEAR2 WIGS NOTE RIGHT WING 3/4 SHORTER TRAB LEFT tSAPPANTS WA-SPAR 3 RIGHT S LEFT FLAPS L IN LENGTH UFOOGOT FOTORE 4 FLAP STAGE LINE SWEPT FERWARA EACH SIDE 0--~ 050 K FOAM WINGUj KOHPBENN CAL HARSHMAPLE MOUNT -.-3 TSP FLITE BELL- & ______CRAMS MAY BEMAKE ROOT SAD TIP RIB TEMPLATEST WING PLANSLRATITOTED HEAVY LI1SEE TEST ROOT SECTION SOFT BALSA TIPS 571150 TPS NOTE FLAT SATE TO AVOIDTT THINSE HINGING FLAP PORN DO NOT STROSBACR HUHEXTEND HERN FARTHER INTOU - IV4AASA TV KLETT NOLANFLAP THAW SPAWN FOR THEUH3/RGSTAG H ELEVATOR BEARINGSASIE REAGANRIA V ORINS AVE FLAPSA' IE SR ETNALSA IVWMEASHINSA A1ARERIBS II OUTBOARD WINS TSPSCHAP BALSA SANGEA SUPPORTS 110 PLACES 9 GEE TEAT FOR MSV32 PLY--'VA FORTAWAS/3D PLA STAB Fl THRO F3 ARE VA PLY- FA TH FH AGE VA BALSA LATS AI/GHOST WIPE FFOFTF4EDERFTNAINO GEAR EV RIB SCRAGGALSAFILLETSV1 'I ENSHE GEFACT-V8SVEET BALSAWINO GAO SAIL 3/32/5 LOIWERAN 3/A s/S MAPLE ENOJIE MDGNTSTLRTLE DEVIATOR S BOTTOM BUCKS SHOALS BE KOLDED OR FLANKEDVA SOFT USE FOLLOWED BACKS ANLY F TRA UTE WOGE IS AVAILABLE GSA FILER ALOCAS COWL N TSP BLOCA• V32 PLY SLUWLEP MEDIUM GALSA HOLLOWEDcoHALVED LABORS V4 LLBASAIIANSVERTICAL STAB B S -ArII Fl- FTG -T"TI 42FTFII. 575 OZ SNIFLOW TANKIFUSELAGSIDEVI~ThWIPE NNUES H -CZiSG-3D BELLCAAIAA MNT BOLT 75 SPNSER-B FLOORVIG PLYAND NOTS-_ EHAXY Mt IAKRROAC WIREASASSOOPA VA VENTRAL FR VA FUSELAGE ENGINE ST AKCOALING ARCARVE WHEELRENTS TO SIDESS/A TOEWTEEL SR SIMIARSUTLETSTREAMLINE SHAPE FROM TWO LAMINATlANS GE I/A A-AC COWL HALO DOWNAND CR0 GE I/DT BALSA VAPLS CROSS MEMBERSDESIGNED B DRAWN BY TED FANCIER WING SJ NW 75 AREA BAA AS IN LENGTH 47WEIGHT BA-HA 02 TRACING BY StE DRIHARCO SAGAS 175 L5 BOUNCE STEELS 0 5 5 4 5 K WEXc/TA77ON showed itself last inverted corner triangles gave jerk through lines heart dropped stomach realized what happening wavered up down once twice wave good-bye moved handle ineffectually hoping wrong wasnt. controls failed went concrete quarter lap later scatter ing debris about feet very startled Bill Fitzgerald haps final rude gesture endless criticism performance through said let know Upon sober reflection became obvious methat Excitations perverse nature result demonic forces simply poor execution preparation part pilot final failurea broken pin heavy duty 4-40 Kwik-Linkwas almost surely caused extreme load placed line failure 10 months previously link should have replaced wasnt result outstanding Stunt ships last two years memory design proven performer highest levels competition worthy project anyone interested serious Stunt activity second Excitationprobably renamed superstitious reasonsis nearing completion shop written time however preparation execution will worthy Excitations aerobatic potential wont giving away again Construction Excitation designed early 1978 incorporates design characteristics tested proven Imitation MA September October1979 Specifically designs utilize higher normal aspect ratio wing blunt leading edges narrow chord nearly full-span flaps long tail moment moderate size low aspect ratio horizontal stab elevator Finally refined control system used consists longer length control horns larger 3-in diameter circu lar bellcrank moves smaller custom ary control surfaces Rather reiterate design logic features suggest reread Imitation article general hy potheses unchanged Excitation generally conventional con struction unusual feature very thick built up stabilizer elevator Ill deal some detail moment wing wish stab elevator available J K Custom Foam Wings 10261 Janice Lynn Cypress CA 90630 strongly urge builders especially just getting started competitive aerobatics take advantage expertise John Poynter Foam wings accomplished artisans such John others have done make over night Stunt success stories anything since George Aldrichs Nobler straight light what get cheap wings available variety degrees completion ultimate J K Master series come sheeted leading trailing edges installed shaped lite ply spar gear supports shown plans place also available gear supports few bucks less However supports cheap insurance since literally have destroy whole wing break loose extremely important ifyou cant fly smooth pavement time J K wings come complete assem bly instructions showing bellcrank installation method joining panels simple butt joint reinforced around lightweight glass cloth Hobbypoxy Formula II glue wing can course built up conven tional fashion using root tip templates shown plans employing appropriate spars planking cap strips historical D-tube construction method wing tips carved light balsa hollowed Add ermanent tip weight make provision dictated flight testing original carried about 3/4 1 oz final trim inboard tip should have adjustable leadout guides either shown plans own favorite system forward foam spar located during design interfere leadouts during adjustment safe side might want remove outer 6 foam spar inboard wing allow additional leadout movement wing flaps can either built up shown plans have some light rigid t could carved shape stress must rigid Flexible flaps create impossi ble flight trim problems Again allow swept-forward hinge line must either use two horns complex difficult build im possible tweak else use Werwage single horn method inserting horn plywood rib sandwich right root simple easy build tweakable basic fuselage box conventional con struction -in sheet sides 1/32 ply doub lers l x -in maple motor mounts long eron top allow attractive shaping bulkheads shown three parts very light blocks available especially aft CG use upper lower sections either planking 3/32 x ps molding 1/16 balsa sheet case cowling nose Continued page 132 December1981 47 IFYOU CAN FLYA FALCON 56. / L READY~ YOURE TO LEARN HOW TO FLY SCALE WITh OUR DYNAMIC TAIL DRAGGER TRAINER0 GEE BEE Sportster just another pretty airplane perfect model get tricycle landing gears tail draggers nothing true sport scale builds easier Sportster Average time build airframe 8-10 hours Plans & illustrated instructions quite simple follow Ask dealer show TAIL DRAGGER N. better known GEE BEE Sportster I 0The Tail Dragger Trainer copyrighted COVERITE J L 420 BABYLON ROAD HORSHAM PENNSYLVANIA 19044 U 5 RUBBER STRIP FAI RUBBERMade USA SIZES 1/4 3/16 1/8 3/32 1/16 1mm thick 042 BOXED 16 ounces rubber per box PRICE $1200 per box postpaid USA NEW PIRELLI SIZES 6mm 3mm 1mm thick PRICE $1800 per hankapprox 1/2 kg TIMERS KSB Fuel DT $1150 ea plus 10% UPS Sole US Distributors & World-wide Sales Send 25 1981 catalog FAIModel Supply ence brain Things start come gether wonder took long Another tack same subject Helicop ters about training gear pondered training gear longtime cricket has nice wide stance wanted something longer skids looked like belong Helicopter stead plumbers junk pile discovered polyethelene golf club separator tubes Take tube cut two Stuff one-half oblong styrofoam fishing bobber end use instant glue soda hold bobbers Cover tubes favorite contact Paper Make four clamps springy steel strapping clamp tubes main gear legs bobbers come grommets run inner Nyrod radio compartment through skid hold antenna skids cost about $150 pair make durable springy light easy clean look almost like pontoons allow fly taxi scoot sideways grass Finally have never seen another model chopper fly Are state regional national organizations devoted Are directories Helicopter pilots could contact need help turn can help based limited experience would willing eager get people started hobby Lastly Ive enclosed some pix Cricket Semper Humilis will notice training skids other minor mods landing gear tail boom Im against modifying just its own sake good reasons Ive found Cricket very durable stable re sponsive few minor mods Ive able fly day about two months maintenance being cleaning oiling says lot Cricket HB 25 PDP Futaba electronics especially knew what kind stresses have put through Thanks listening Tom Gibbons way Toms letter received August bad progress again rate progress individual thing Ive student solo Aeronca Champ five hours have another couldnt solo Cessna 150 fifteen yet satisfied first solo Glenn Willison have doing little flying nearby parking lot Glenn just began flying recently called some instruction trim-out Cricket think weve fun probably cant tell expres sions Um can just figure out two stick radios work Chesney Rt 9 Box 621-A Greensboro NC 27409 Excitation Fancher Continued page 4 block should carved light balsa blocks procedure build fuselage box tack-glue cowl turtle deck top bottom blocks place proceed shape whole works near completion Once shaped pop off blocks pin fuselage box upside down firmly large flat building board Cut out belly cradle carefully align install wing Use slow-drying glue make strong joint Measure remeasure measure again nothing critical performance tail built-up just like small wing Make 1/32 plywood templates root tip ribs Sandwich appropriate number 1/16 rib blanks between templates sand shape Glue ribs spars ensuring 90 degrees spar properly aligned Add scrap balsa supports hinges time drying cut skins very light 1/16 balsa sheet Two stab four elevator skins necessary First glue stab skins spars dry use small paint brush apply Titebond glue ribs top bottom Pin skins securely ribs ensure uniform adhesion dry use long sanding block make flush surface glue leading edge Cut slots favorite hinges Dump shavings out leading edge gap install shape ing edge complete elevators first cut hinge slots match stab apply sheeting both sides once Titebond Shape dry have used good wood sanitary construction techniques should now have 140 sq stab elevator weighs ito 1 oz Now time install tail right Wrong After building Stunt ships 25 years having tails end up crooked despite strenuous efforts finally broke code No matter carefully align stab attach top bottom blocks after tail glued place will invariably twist fuselage way another thereby destroying perfect alignment answer install controls down last minor bit pushrod adjustment Leave just little space fore aft move ment stab achieving exact neutral finally glue place Now proceed permanently attach turtledeck already attached bottom block Only after dry fuselage made rigid can 132 Model Aviation P0 Box 3957 Torrance CA 90510 fmally secure tail place sure will remain way major components assembled can get down detail work Cut shape rudder vertical stabilizer a Hinge rudder vertical stab soft wire rudder can adjusted Glue place conventional location top rear fuselage Cut ventral fin balsa Install tall wheel wire reinforcing medium weight glass cloth Formula II Hobb$poxy original canopy 040 butyrate plastic molded vacuum box However commercially-available canopies could employed hint back RC teardrop-shaped canopies lend themselves very well style degree cockpit detail choice used go whole hog seats seatbelts instru ments fire extinguishers etc Current trends leaning toward basics pilot head few instruments darkly tinted canopy simulated painted-on cockpit carved balsa blocks imaginative cockpit de tailing have personally seen employed high-ranking officer Atianta Stunt Con spiracy refuse give initials last name began Dixon Colonel Tom flew neatly-built Nobler untinted clear canopy through interested bystander could view beautifully painted black cockpit interior strip paper neatly glued floor typed two words Cockpit Detail comes innovation technological breakthroughs cant top rebels comes finish Ill defer masters Until can build plane fillets dont look like Mt Saint Helens wont pretend give advice Whatever type finish use make neat light thing know about paint heavy design have included standard pre drafting numbers-sheet detailing design para meters Excitation comparison Imitation numbers will plainly show Excitation nearly identical aerodynamically major difference highly tapered wing primarily appearance resulted swept-forward flap hinge line achieve 67% taper ratio straight hinge line would have resulted highiy swept leading edge order place aerodynamic center proper location fuselage forward leading edge would have needed very shorttoo short allow tank fit swept-forward flaps will work smoothly single horn carefully constructed per drawings important consideration arms enter flaps right root very strongjoint therefore mandatory make plywood sandwich shown ensure adequate strength sandwich epoxied directly root flap Final weight should low 50-oz range best performance Excitation 650 sq area small current standards Higher weights will still fly well power loading becomes marginal particularly vertical ma neuvers couple trimming suggestions longerarm control system provides adequate mechanical advantage over control-surface air loads under severe circumstances setup shown 3-in bellcrank 90-in pushrod arm bellerank 75-in control horn arms results sensitive system conven tional 4-in handle such Hot Rock encourage use Baron-style adjustable handle provide control sensitivity suits taste Adding nose weight airplane aerodynamically unstable done simply desensitize control feel results airplane trimmed less its full aerobatic potential Optimum center gravity CG location can determined through flight testing Move CG aft quarter inch time observe flight certain point ship will go effortlessly around corner hard flat no tendency hunt after controls neutral ized far aft position will primarily determiend K stability factor design such Excitation long tail moment and/or large tail area will accept further aft CG will design short and/or small area tail hard flat corner achieved ship will probably too sensitive tastedont add nose weighL next important indication proper CG manner ship glides engine quits CG too far aft engine quits ship will immediately go light lines nose up slightly Smooth approaches will difficult may become impossible possibly hazardous upwind such case add nose weight until control positive Unless have very small tall thus adequate K factor will achieve two goals within fraction inch same CG location youve found proper CG adjust handle line spacing fine-tune sensitivity taste Once have achieved combi nation will have airplane com fortable fly yet aerodynamically trimmed its maximum potential large reserve available merely opening up line can R/C dealer 0MODELMANIA TO OUR CLIL COTITTOS ESE 44 otOURLYN S MODEL TA- F IPT C Wt4800CLSN NY 24 RETNEFOCI 144 3 FROM STATEN ISLANE TO F El F 0440 EAST CONE bLANC RAE F IT N 011100 FLU TO OPEN MOMTE4EC 15 5' 5SF F TAMPTIT Too OATI2TS SPECIALS GOOF LATIL SN 450 SR OP -C NL4I MR44UFATORERS NAME 9ISOERAPT SYSTEMS WV AM 30250EP7C P41 7253 14 151 oEP 0 593SEPSO AM 72 1401511 SEPT00 3045EPSO AM 72 22 SEP00 3950P2K 41 72 21K SEPT00 3960EPOK 41 22 4 244 oEPSO 40975EPOK N 72 3 21 [EPTO 398$EPEOC ANY AM 7 3990KPR5C OF' AM 7 48804PC1411-15114 4010KPSIO450 GAblE FOR SPECIAL PRICES AOl CETRI SSOEP0I SIGARTURE SERIES ESTS P0 mAP CO P41 4030TORPLITE oEALINO 10010 4820I4EOCON MI! CEO OOc 040AICREL AER PIATCF TOO t 8 03 FINIoAI RE II OT PECIET ES TOPFL1TE OQACA STEPOLL10 0 POL ITT AAENC MO lIE CL P 41114 4 POLL 408$PICRO 8 PEAR P oICC EoT 19 951 OFLITARA PGE4 2 ER 0 FOOL PATE2 05P04 EAGLE III 504-IOOEPLE POPTEC 1588101 -01CR 4A0 0 TOOC 41OCtOREEG GE14TLC LAO So AIRTPON4C OLOPI 11 1 0 40 ORLIME REELALENET RONOT 0 FL 045 008 CORI 3440 ThOPPIFIO LW ESE DSPC OTES INvLLICC N oCLI AFIRE lEO E C CL ACE OROEP RECIPE [C 10 FOP C SEN ALL ORCECSINOJIRC ST L44AIIA F 0 800 470 P2T4,440 ROES yrIlL PEICES OLBOC 3 T 084 COK- 403 7 rPUP004430 L4l44OoL4PPE44T PILl PEE L 4 44136 SECEC0 Ci 0 0 bIlE Oi 1044 StEARS NO COO ALL PRICE IIILL ICE 00 ,4l4 fl4 1* T NAIlER 045 lIT TEl oNC.CoO, I N MT BALK TO TWAL C COF'C hU RRAI4K 8 4 513005L0C OF oW 00 P114 44100 1500550 010 00 00 ST ER 7808 ACE 01 44A F 1 S4C ZR 800 8FF C:TEA 04 00OIl F TOTAL FOP TAIPPIF4U OLL42141' IENC0SALES ARC FIlIAL ES! SIT IT L4IAL NECK TO CLEAR 44 AC bElT 440 10 ALES TAOENE A0E FF AL I4S TOE CROP ANT3 FE OUKIC PEOLIIEC RCT December1981 133 NOW ThERES PRIMER RECOMMENDED FOR COVEPITE New Primex solves nagging problem Now can sure first time getting great adhesion Now remove masking tape paint ioh will stay down Primex ultra-light smooth very quick dry Easy apply brush extremely sandable Primex now primer use Coverite ISuper Permagloss & Silkspun equally great wood tissue silk nylon dacron Look bright yellow 9CEVERITEJ L 420 BABYLON ROAD HORSHAM PENNSYLVANIA 19044 U S Year Limited nty Pre-Dnhled Props Avail Ask About Custom- Built KIORITZ Engines Deep Fins Optimum Cooling 21/4 Flywheel Small Magneto 1 5/am Six Bolt Aluminum Hub Carb Needles &Throttle Accessible Engine Running Godfrey Points Sealed Rear Housing $19995 pay shIp pre-paid orders Mufflers Now Availablel DEALERS WELCOME 242 cc 397ccSPECIFICATIONS 32HP 8000 rpmWoibto Pomp CarbBall Bearmngs Crank ght B b3 Riog PistonCaged Rollers Rod ond Foton Finn GIBBS HOBBY & RESEARCH 6195 HIlifleld St NW N CANTON OHIO 44720 Phone 21 6 499-8854 after 600 PM C ELECTRONIC SERVICENTER FACTORY AUTHORIZED WARRANTY SERVICE FOR KRAFT over 35 other manufacturers Tired wasting money radio service os per formance too important jeopardized inexperien ced uncaring technician company just person re pairs RC equipment RCer cares about radio ME 24 HOUR SERVICE NEAL WARREN 3 South 21St Street erPh iladelphia PA 19103 Tel 215 564-0800 24 HOUR SERVICE Mon-Fri 9AM-53OPM AO Wed night till 8PM Sat 9AM Noon spacing important capability flying high winds An airplane aerodynamically detuned through addition nose weight will have no reserve turn available conditions demand conclusion Excitation merely another Nobler new cosmetics truly better mousetrap designed fill mans demands capability adapt variety flying styles Simply because has way performance available ever called win todays Precision Aerobatics arena properly trimmed Excitation can adjusted suit Precision Aerobatics flier about CL Scale/Byron Continued page 49 East Coast am sure several people familiar aircraft also excel lent photographer pictures reflect An out standing aircraft Profile Publications has come atten tion Profile Publications being put back print again outstanding modeling assistance Scale modelers am looking forward acquiring entire series now have about 70 something Scale modeler should have because value 5-views come publication probably will expensive past will worth penny serious Scale modeler historian Look advertised upcoming issues of model magazines Dont let slide through hands like once did Richard P Byron 2506 So 16 1st Circle Omaha NE 68130 CL Racing/Lee Continued page 50 ing Racing headed us has own opinion since have pencil hand heres Ther will probably always core avid AMA Racing enthusiasts likelihood ones will always found Nats sad part year after year hard-nosed group seems little smaller year before isnt new infusion interest provide numbers used exist have Racers gone What needs done get interest back lot has written about various Racing events types events column other publications generally accepted term inology coined Jim Thomerson True Sport TS Just Another Racing JAR event Basically TS event extremely specific its rules effort allow sport flier use sport flying equipment competitive TS event should capable being flown equipment available local hobby shop dominated nonavailable equipment various TS events have heard recently generally specify engine brand model plane configuration etc JAR event usually limited version normal AMA Racing event Rules added keep performance level down general events leave lot room progress events tend follow same curve popularity AMA events have followed initial burst popularity being followed decline interest rules 134 Model Aviation K IORIT ENGINES BY GIBBS HOBBY & RESEARCH Original Developer Factory Trained Authorized Master Service Dealer r7
Edition: Model Aviation - 1981/12
Page Numbers: 44, 45, 46, 47, 132, 133, 134
If have interest form corn petition story must reading authors odyssey through three Nats two close-butno-champagne endings culminating heartbreaker striking whether youre CL Precision Aerobatics Plans cluded construction very special airplane@Ted Fancher EXCITATION Little did know time chose name prophetic would become Never experience has airplane taken its builder/flier such emotional roller coaster ride did late almost great Excitation Excitation completed spring 1978 After period flight testing trim ming convinced machine would competitive best would necessity Lincoln Natt would mark return top competitors unable compete 1978 due atten dance World Championships would no easy wins Lincoln Victories two local California contests July proved Excitations ability score well flew left Nats optimistic state mind optimism appeared well-founded end qualifying semi-finals third place very much chase National Championship Unfortunately morning Walker Cup flyoff awoke Stunt fliers night maregale force winds aday airplanes tied tool boxes blown away hats tents impossible judging flying conditionsa real Stunt event opposed Precision Aerobatics championship Excitation performed admirably although definitely need horsepower ST40 capable providing Despite flying highest score second round having legitimate shot Walker Cup right up last flight day total effort up demands day competi tion ended up 5th place satisfactory totally satisfying national debut Although somewhat disappointed felt learned great deal Lincoln experience First foremost ST40 although ade quate conditions did provide reserve horsepower necessary top perform ances under poor conditions advantage 40 its use allowed Excitation legally flown 015 cables thought reduction drag thus achieved outweighed potential loss torque avallable larger engine performance Lincoln proved wrong however simple curea drawer full outstanding Vic Garner-prepared ST46s would drop right Since next major competition FAL Team Trials Dayton following month could use 46 018 anchor chalns required AMA rules inasmuch FAI rules require no minimum line diameter horsepower less drag equals increased performance event convinced 015 lines strong enough pay dearly conviction Once again took off beautiful San Francisco peninsula live Excita tion baggage pitand visions Poland dancing head Surely after performing near stand-off its anemic Lincoln condition new Charles Atlas-ized Excitation could finally leading rather scrambling pack Oh nearly first day Dayton appeared though indeed week last Hot muggy weather resultant high density alti tudes top guns scratching heads werent catching floundering airplanes fell out thin calm dead Ohio skies Excitation other hand performing perfectlyflying little 44 Model Aviation faster sure purposely gener ally taking delight its new-found muscles Such state affairs day qualifying everyone looking breath air finding noneand Excitation perform ing better ever end day topnot little sizable margin having highest score qualifying rounds Cloud Nine going far call Shareen #1 supporter telling shed better get some books speaking Polish good Talk about premature could write new definition Mr Webster two rounds following day things con tinued going way Most pilots still fighting dead airwith notable exception Stiletto McDonaldand going third last round very solid second place again shot * 1 just put practice flight about mentor impossible-to-please critic Bill Fitzgerald stated Youre finally starting get idea Such staggering praise first good thing say week pumped up moved pull-test area last flight convinced no way could kept off team Years hard work about pay off ever man ready OK Ted pull Ill release No sweat done thousand times never problem snap jerk.my lines perhaps heart up line broke.damn dont have spare lines dumb dumb dumb Wynn Paul asks What size lines need Ted dont know cant think come controls dont work What mean Theyre jammed full down Terrific something inside must have broken Bob Whitely Bart Klapinski bring knife surgery begins Bob Hunt Ted have fly after next flight lose turn incision complete bellcrank has swung past 1800 jammed over center fingers crossed force back. okay now .sure sure is. has .theres no time voice crowd flaps elevators bothdown.oh its trimmed way.no little down lot.what now .something must bentcontrol horn push rod.no way tell Bob Hunt Ted must fly now pass Oh boy go.is handle set right.who knows. ease wing-over. whoops well least know handle isnt right .try adjust inverted flight.nothings right. wont turn outside. almost stuck time. disaster ster k God its over ever over After numbers made team fallen pinnacle ignominious 6th Place emotional wreck came close quitting competition ever have Excita tion proving itself aptly named Unfortunately Jekyll Hyde relation ship capricious lady quite over As learn through toying emotions abusing psyche would let know finality complete examination home uncov ered severe trauma control system includ ing control horn twisted about 200 force jammed controlswhich caused previously inexplicable condition both flaps elevators being down about 150 same time also broken solder joint December 1981 45 According 10 aumnor on-field dis assembly allows model stored compact shipping case Extra small pieces stored Windy Urtnowskis Sweeper van rough facsimile author peers around edge instrument panel canopy dyed dark blue fabric dye photos author between arms horn flap control horn Surgery performed affected areas after recuperative retrimming Devil Lady appeared ready another sault Walker Cup Come 1980 made last pilgrimage Ohio Wilmington Nats Early week things going well prepared well before having trouble adjusting two days travel sleep finals held second day would have spectator perhaps happier thout knowing After day practice two days qualifying rounds very nearly disastrous first round semi-finals finally health airplane act together same time place fourth year row 3rd place entering Walker Cup flyoff once again optimism creeping out onto sleeve could lose sincere Let tell morning finals dawned little cloudy blustery no rain appeared imminent conditions ideal certainly superior Lincolns gales crack dawn unflappable buddy Bill Fitzgerald holding Garner ST46 barked life first planned three warm-up flights prior start compe tition uncharacteristically Excitation came off little rich cool morning air went perfunctorily through slow sloppy pattern rnn out both fuel nervous jitters After completing pattern habitually three outside triangles clear lines landing now Excitations final perversity 46 Model Aviation Supertigre 46 prepared author vu uarner sports Adam lain muffler Note cooling air inlet louvers Heated air needs room escape mere must large airoutlets larger inlets Finish Sig dope lots elbow grease file inch-thick tail requires careful shaping ninge iine allowtull range movement Note hatch fuselage hinge line allow access elevator control horn detail points can make lot dnmerence wnen youre up top three Ruling pens dry transfers trick Slightly taperea nap isa constant 17% wing chord Lines details done Rapidograph technical pen available art stores Rignm wing features storage compartment forthe Jim WalkerTrophy unfortunately little bit premature FULL-SIZE PLANSAVAILABLE SEE PAGE 140 3/007/8 LEAOING EDGE ALL WACO VERY LIGHT BALSA I*4LESS NOTED GEALSYARLE-Ua LITE-PLY GEAR2 WIGS NOTE RIGHT WING 3/4 SHORTER TRAB LEFT tSAPPANTS WA-SPAR 3 RIGHT S LEFT FLAPS L IN LENGTH UFOOGOT FOTORE 4 FLAP STAGE LINE SWEPT FERWARA EACH SIDE 0--~ 050 K FOAM WINGUj KOHPBENN CAL HARSHMAPLE MOUNT -.-3 TSP FLITE BELL- & ______CRAMS MAY BEMAKE ROOT SAD TIP RIB TEMPLATEST WING PLANSLRATITOTED HEAVY LI1SEE TEST ROOT SECTION SOFT BALSA TIPS 571150 TPS NOTE FLAT SATE TO AVOIDTT THINSE HINGING FLAP PORN DO NOT STROSBACR HUHEXTEND HERN FARTHER INTOU - IV4AASA TV KLETT NOLANFLAP THAW SPAWN FOR THEUH3/RGSTAG H ELEVATOR BEARINGSASIE REAGANRIA V ORINS AVE FLAPSA' IE SR ETNALSA IVWMEASHINSA A1ARERIBS II OUTBOARD WINS TSPSCHAP BALSA SANGEA SUPPORTS 110 PLACES 9 GEE TEAT FOR MSV32 PLY--'VA FORTAWAS/3D PLA STAB Fl THRO F3 ARE VA PLY- FA TH FH AGE VA BALSA LATS AI/GHOST WIPE FFOFTF4EDERFTNAINO GEAR EV RIB SCRAGGALSAFILLETSV1 'I ENSHE GEFACT-V8SVEET BALSAWINO GAO SAIL 3/32/5 LOIWERAN 3/A s/S MAPLE ENOJIE MDGNTSTLRTLE DEVIATOR S BOTTOM BUCKS SHOALS BE KOLDED OR FLANKEDVA SOFT USE FOLLOWED BACKS ANLY F TRA UTE WOGE IS AVAILABLE GSA FILER ALOCAS COWL N TSP BLOCA• V32 PLY SLUWLEP MEDIUM GALSA HOLLOWEDcoHALVED LABORS V4 LLBASAIIANSVERTICAL STAB B S -ArII Fl- FTG -T"TI 42FTFII. 575 OZ SNIFLOW TANKIFUSELAGSIDEVI~ThWIPE NNUES H -CZiSG-3D BELLCAAIAA MNT BOLT 75 SPNSER-B FLOORVIG PLYAND NOTS-_ EHAXY Mt IAKRROAC WIREASASSOOPA VA VENTRAL FR VA FUSELAGE ENGINE ST AKCOALING ARCARVE WHEELRENTS TO SIDESS/A TOEWTEEL SR SIMIARSUTLETSTREAMLINE SHAPE FROM TWO LAMINATlANS GE I/A A-AC COWL HALO DOWNAND CR0 GE I/DT BALSA VAPLS CROSS MEMBERSDESIGNED B DRAWN BY TED FANCIER WING SJ NW 75 AREA BAA AS IN LENGTH 47WEIGHT BA-HA 02 TRACING BY StE DRIHARCO SAGAS 175 L5 BOUNCE STEELS 0 5 5 4 5 K WEXc/TA77ON showed itself last inverted corner triangles gave jerk through lines heart dropped stomach realized what happening wavered up down once twice wave good-bye moved handle ineffectually hoping wrong wasnt. controls failed went concrete quarter lap later scatter ing debris about feet very startled Bill Fitzgerald haps final rude gesture endless criticism performance through said let know Upon sober reflection became obvious methat Excitations perverse nature result demonic forces simply poor execution preparation part pilot final failurea broken pin heavy duty 4-40 Kwik-Linkwas almost surely caused extreme load placed line failure 10 months previously link should have replaced wasnt result outstanding Stunt ships last two years memory design proven performer highest levels competition worthy project anyone interested serious Stunt activity second Excitationprobably renamed superstitious reasonsis nearing completion shop written time however preparation execution will worthy Excitations aerobatic potential wont giving away again Construction Excitation designed early 1978 incorporates design characteristics tested proven Imitation MA September October1979 Specifically designs utilize higher normal aspect ratio wing blunt leading edges narrow chord nearly full-span flaps long tail moment moderate size low aspect ratio horizontal stab elevator Finally refined control system used consists longer length control horns larger 3-in diameter circu lar bellcrank moves smaller custom ary control surfaces Rather reiterate design logic features suggest reread Imitation article general hy potheses unchanged Excitation generally conventional con struction unusual feature very thick built up stabilizer elevator Ill deal some detail moment wing wish stab elevator available J K Custom Foam Wings 10261 Janice Lynn Cypress CA 90630 strongly urge builders especially just getting started competitive aerobatics take advantage expertise John Poynter Foam wings accomplished artisans such John others have done make over night Stunt success stories anything since George Aldrichs Nobler straight light what get cheap wings available variety degrees completion ultimate J K Master series come sheeted leading trailing edges installed shaped lite ply spar gear supports shown plans place also available gear supports few bucks less However supports cheap insurance since literally have destroy whole wing break loose extremely important ifyou cant fly smooth pavement time J K wings come complete assem bly instructions showing bellcrank installation method joining panels simple butt joint reinforced around lightweight glass cloth Hobbypoxy Formula II glue wing can course built up conven tional fashion using root tip templates shown plans employing appropriate spars planking cap strips historical D-tube construction method wing tips carved light balsa hollowed Add ermanent tip weight make provision dictated flight testing original carried about 3/4 1 oz final trim inboard tip should have adjustable leadout guides either shown plans own favorite system forward foam spar located during design interfere leadouts during adjustment safe side might want remove outer 6 foam spar inboard wing allow additional leadout movement wing flaps can either built up shown plans have some light rigid t could carved shape stress must rigid Flexible flaps create impossi ble flight trim problems Again allow swept-forward hinge line must either use two horns complex difficult build im possible tweak else use Werwage single horn method inserting horn plywood rib sandwich right root simple easy build tweakable basic fuselage box conventional con struction -in sheet sides 1/32 ply doub lers l x -in maple motor mounts long eron top allow attractive shaping bulkheads shown three parts very light blocks available especially aft CG use upper lower sections either planking 3/32 x ps molding 1/16 balsa sheet case cowling nose Continued page 132 December1981 47 IFYOU CAN FLYA FALCON 56. / L READY~ YOURE TO LEARN HOW TO FLY SCALE WITh OUR DYNAMIC TAIL DRAGGER TRAINER0 GEE BEE Sportster just another pretty airplane perfect model get tricycle landing gears tail draggers nothing true sport scale builds easier Sportster Average time build airframe 8-10 hours Plans & illustrated instructions quite simple follow Ask dealer show TAIL DRAGGER N. better known GEE BEE Sportster I 0The Tail Dragger Trainer copyrighted COVERITE J L 420 BABYLON ROAD HORSHAM PENNSYLVANIA 19044 U 5 RUBBER STRIP FAI RUBBERMade USA SIZES 1/4 3/16 1/8 3/32 1/16 1mm thick 042 BOXED 16 ounces rubber per box PRICE $1200 per box postpaid USA NEW PIRELLI SIZES 6mm 3mm 1mm thick PRICE $1800 per hankapprox 1/2 kg TIMERS KSB Fuel DT $1150 ea plus 10% UPS Sole US Distributors & World-wide Sales Send 25 1981 catalog FAIModel Supply ence brain Things start come gether wonder took long Another tack same subject Helicop ters about training gear pondered training gear longtime cricket has nice wide stance wanted something longer skids looked like belong Helicopter stead plumbers junk pile discovered polyethelene golf club separator tubes Take tube cut two Stuff one-half oblong styrofoam fishing bobber end use instant glue soda hold bobbers Cover tubes favorite contact Paper Make four clamps springy steel strapping clamp tubes main gear legs bobbers come grommets run inner Nyrod radio compartment through skid hold antenna skids cost about $150 pair make durable springy light easy clean look almost like pontoons allow fly taxi scoot sideways grass Finally have never seen another model chopper fly Are state regional national organizations devoted Are directories Helicopter pilots could contact need help turn can help based limited experience would willing eager get people started hobby Lastly Ive enclosed some pix Cricket Semper Humilis will notice training skids other minor mods landing gear tail boom Im against modifying just its own sake good reasons Ive found Cricket very durable stable re sponsive few minor mods Ive able fly day about two months maintenance being cleaning oiling says lot Cricket HB 25 PDP Futaba electronics especially knew what kind stresses have put through Thanks listening Tom Gibbons way Toms letter received August bad progress again rate progress individual thing Ive student solo Aeronca Champ five hours have another couldnt solo Cessna 150 fifteen yet satisfied first solo Glenn Willison have doing little flying nearby parking lot Glenn just began flying recently called some instruction trim-out Cricket think weve fun probably cant tell expres sions Um can just figure out two stick radios work Chesney Rt 9 Box 621-A Greensboro NC 27409 Excitation Fancher Continued page 4 block should carved light balsa blocks procedure build fuselage box tack-glue cowl turtle deck top bottom blocks place proceed shape whole works near completion Once shaped pop off blocks pin fuselage box upside down firmly large flat building board Cut out belly cradle carefully align install wing Use slow-drying glue make strong joint Measure remeasure measure again nothing critical performance tail built-up just like small wing Make 1/32 plywood templates root tip ribs Sandwich appropriate number 1/16 rib blanks between templates sand shape Glue ribs spars ensuring 90 degrees spar properly aligned Add scrap balsa supports hinges time drying cut skins very light 1/16 balsa sheet Two stab four elevator skins necessary First glue stab skins spars dry use small paint brush apply Titebond glue ribs top bottom Pin skins securely ribs ensure uniform adhesion dry use long sanding block make flush surface glue leading edge Cut slots favorite hinges Dump shavings out leading edge gap install shape ing edge complete elevators first cut hinge slots match stab apply sheeting both sides once Titebond Shape dry have used good wood sanitary construction techniques should now have 140 sq stab elevator weighs ito 1 oz Now time install tail right Wrong After building Stunt ships 25 years having tails end up crooked despite strenuous efforts finally broke code No matter carefully align stab attach top bottom blocks after tail glued place will invariably twist fuselage way another thereby destroying perfect alignment answer install controls down last minor bit pushrod adjustment Leave just little space fore aft move ment stab achieving exact neutral finally glue place Now proceed permanently attach turtledeck already attached bottom block Only after dry fuselage made rigid can 132 Model Aviation P0 Box 3957 Torrance CA 90510 fmally secure tail place sure will remain way major components assembled can get down detail work Cut shape rudder vertical stabilizer a Hinge rudder vertical stab soft wire rudder can adjusted Glue place conventional location top rear fuselage Cut ventral fin balsa Install tall wheel wire reinforcing medium weight glass cloth Formula II Hobb$poxy original canopy 040 butyrate plastic molded vacuum box However commercially-available canopies could employed hint back RC teardrop-shaped canopies lend themselves very well style degree cockpit detail choice used go whole hog seats seatbelts instru ments fire extinguishers etc Current trends leaning toward basics pilot head few instruments darkly tinted canopy simulated painted-on cockpit carved balsa blocks imaginative cockpit de tailing have personally seen employed high-ranking officer Atianta Stunt Con spiracy refuse give initials last name began Dixon Colonel Tom flew neatly-built Nobler untinted clear canopy through interested bystander could view beautifully painted black cockpit interior strip paper neatly glued floor typed two words Cockpit Detail comes innovation technological breakthroughs cant top rebels comes finish Ill defer masters Until can build plane fillets dont look like Mt Saint Helens wont pretend give advice Whatever type finish use make neat light thing know about paint heavy design have included standard pre drafting numbers-sheet detailing design para meters Excitation comparison Imitation numbers will plainly show Excitation nearly identical aerodynamically major difference highly tapered wing primarily appearance resulted swept-forward flap hinge line achieve 67% taper ratio straight hinge line would have resulted highiy swept leading edge order place aerodynamic center proper location fuselage forward leading edge would have needed very shorttoo short allow tank fit swept-forward flaps will work smoothly single horn carefully constructed per drawings important consideration arms enter flaps right root very strongjoint therefore mandatory make plywood sandwich shown ensure adequate strength sandwich epoxied directly root flap Final weight should low 50-oz range best performance Excitation 650 sq area small current standards Higher weights will still fly well power loading becomes marginal particularly vertical ma neuvers couple trimming suggestions longerarm control system provides adequate mechanical advantage over control-surface air loads under severe circumstances setup shown 3-in bellcrank 90-in pushrod arm bellerank 75-in control horn arms results sensitive system conven tional 4-in handle such Hot Rock encourage use Baron-style adjustable handle provide control sensitivity suits taste Adding nose weight airplane aerodynamically unstable done simply desensitize control feel results airplane trimmed less its full aerobatic potential Optimum center gravity CG location can determined through flight testing Move CG aft quarter inch time observe flight certain point ship will go effortlessly around corner hard flat no tendency hunt after controls neutral ized far aft position will primarily determiend K stability factor design such Excitation long tail moment and/or large tail area will accept further aft CG will design short and/or small area tail hard flat corner achieved ship will probably too sensitive tastedont add nose weighL next important indication proper CG manner ship glides engine quits CG too far aft engine quits ship will immediately go light lines nose up slightly Smooth approaches will difficult may become impossible possibly hazardous upwind such case add nose weight until control positive Unless have very small tall thus adequate K factor will achieve two goals within fraction inch same CG location youve found proper CG adjust handle line spacing fine-tune sensitivity taste Once have achieved combi nation will have airplane com fortable fly yet aerodynamically trimmed its maximum potential large reserve available merely opening up line can R/C dealer 0MODELMANIA TO OUR CLIL COTITTOS ESE 44 otOURLYN S MODEL TA- F IPT C Wt4800CLSN NY 24 RETNEFOCI 144 3 FROM STATEN ISLANE TO F El F 0440 EAST CONE bLANC RAE F IT N 011100 FLU TO OPEN MOMTE4EC 15 5' 5SF F TAMPTIT Too OATI2TS SPECIALS GOOF LATIL SN 450 SR OP -C NL4I MR44UFATORERS NAME 9ISOERAPT SYSTEMS WV AM 30250EP7C P41 7253 14 151 oEP 0 593SEPSO AM 72 1401511 SEPT00 3045EPSO AM 72 22 SEP00 3950P2K 41 72 21K SEPT00 3960EPOK 41 22 4 244 oEPSO 40975EPOK N 72 3 21 [EPTO 398$EPEOC ANY AM 7 3990KPR5C OF' AM 7 48804PC1411-15114 4010KPSIO450 GAblE FOR SPECIAL PRICES AOl CETRI SSOEP0I SIGARTURE SERIES ESTS P0 mAP CO P41 4030TORPLITE oEALINO 10010 4820I4EOCON MI! CEO OOc 040AICREL AER PIATCF TOO t 8 03 FINIoAI RE II OT PECIET ES TOPFL1TE OQACA STEPOLL10 0 POL ITT AAENC MO lIE CL P 41114 4 POLL 408$PICRO 8 PEAR P oICC EoT 19 951 OFLITARA PGE4 2 ER 0 FOOL PATE2 05P04 EAGLE III 504-IOOEPLE POPTEC 1588101 -01CR 4A0 0 TOOC 41OCtOREEG GE14TLC LAO So AIRTPON4C OLOPI 11 1 0 40 ORLIME REELALENET RONOT 0 FL 045 008 CORI 3440 ThOPPIFIO LW ESE DSPC OTES INvLLICC N oCLI AFIRE lEO E C CL ACE OROEP RECIPE [C 10 FOP C SEN ALL ORCECSINOJIRC ST L44AIIA F 0 800 470 P2T4,440 ROES yrIlL PEICES OLBOC 3 T 084 COK- 403 7 rPUP004430 L4l44OoL4PPE44T PILl PEE L 4 44136 SECEC0 Ci 0 0 bIlE Oi 1044 StEARS NO COO ALL PRICE IIILL ICE 00 ,4l4 fl4 1* T NAIlER 045 lIT TEl oNC.CoO, I N MT BALK TO TWAL C COF'C hU RRAI4K 8 4 513005L0C OF oW 00 P114 44100 1500550 010 00 00 ST ER 7808 ACE 01 44A F 1 S4C ZR 800 8FF C:TEA 04 00OIl F TOTAL FOP TAIPPIF4U OLL42141' IENC0SALES ARC FIlIAL ES! SIT IT L4IAL NECK TO CLEAR 44 AC bElT 440 10 ALES TAOENE A0E FF AL I4S TOE CROP ANT3 FE OUKIC PEOLIIEC RCT December1981 133 NOW ThERES PRIMER RECOMMENDED FOR COVEPITE New Primex solves nagging problem Now can sure first time getting great adhesion Now remove masking tape paint ioh will stay down Primex ultra-light smooth very quick dry Easy apply brush extremely sandable Primex now primer use Coverite ISuper Permagloss & Silkspun equally great wood tissue silk nylon dacron Look bright yellow 9CEVERITEJ L 420 BABYLON ROAD HORSHAM PENNSYLVANIA 19044 U S Year Limited nty Pre-Dnhled Props Avail Ask About Custom- Built KIORITZ Engines Deep Fins Optimum Cooling 21/4 Flywheel Small Magneto 1 5/am Six Bolt Aluminum Hub Carb Needles &Throttle Accessible Engine Running Godfrey Points Sealed Rear Housing $19995 pay shIp pre-paid orders Mufflers Now Availablel DEALERS WELCOME 242 cc 397ccSPECIFICATIONS 32HP 8000 rpmWoibto Pomp CarbBall Bearmngs Crank ght B b3 Riog PistonCaged Rollers Rod ond Foton Finn GIBBS HOBBY & RESEARCH 6195 HIlifleld St NW N CANTON OHIO 44720 Phone 21 6 499-8854 after 600 PM C ELECTRONIC SERVICENTER FACTORY AUTHORIZED WARRANTY SERVICE FOR KRAFT over 35 other manufacturers Tired wasting money radio service os per formance too important jeopardized inexperien ced uncaring technician company just person re pairs RC equipment RCer cares about radio ME 24 HOUR SERVICE NEAL WARREN 3 South 21St Street erPh iladelphia PA 19103 Tel 215 564-0800 24 HOUR SERVICE Mon-Fri 9AM-53OPM AO Wed night till 8PM Sat 9AM Noon spacing important capability flying high winds An airplane aerodynamically detuned through addition nose weight will have no reserve turn available conditions demand conclusion Excitation merely another Nobler new cosmetics truly better mousetrap designed fill mans demands capability adapt variety flying styles Simply because has way performance available ever called win todays Precision Aerobatics arena properly trimmed Excitation can adjusted suit Precision Aerobatics flier about CL Scale/Byron Continued page 49 East Coast am sure several people familiar aircraft also excel lent photographer pictures reflect An out standing aircraft Profile Publications has come atten tion Profile Publications being put back print again outstanding modeling assistance Scale modelers am looking forward acquiring entire series now have about 70 something Scale modeler should have because value 5-views come publication probably will expensive past will worth penny serious Scale modeler historian Look advertised upcoming issues of model magazines Dont let slide through hands like once did Richard P Byron 2506 So 16 1st Circle Omaha NE 68130 CL Racing/Lee Continued page 50 ing Racing headed us has own opinion since have pencil hand heres Ther will probably always core avid AMA Racing enthusiasts likelihood ones will always found Nats sad part year after year hard-nosed group seems little smaller year before isnt new infusion interest provide numbers used exist have Racers gone What needs done get interest back lot has written about various Racing events types events column other publications generally accepted term inology coined Jim Thomerson True Sport TS Just Another Racing JAR event Basically TS event extremely specific its rules effort allow sport flier use sport flying equipment competitive TS event should capable being flown equipment available local hobby shop dominated nonavailable equipment various TS events have heard recently generally specify engine brand model plane configuration etc JAR event usually limited version normal AMA Racing event Rules added keep performance level down general events leave lot room progress events tend follow same curve popularity AMA events have followed initial burst popularity being followed decline interest rules 134 Model Aviation K IORIT ENGINES BY GIBBS HOBBY & RESEARCH Original Developer Factory Trained Authorized Master Service Dealer r7
Edition: Model Aviation - 1981/12
Page Numbers: 44, 45, 46, 47, 132, 133, 134
If have interest form corn petition story must reading authors odyssey through three Nats two close-butno-champagne endings culminating heartbreaker striking whether youre CL Precision Aerobatics Plans cluded construction very special airplane@Ted Fancher EXCITATION Little did know time chose name prophetic would become Never experience has airplane taken its builder/flier such emotional roller coaster ride did late almost great Excitation Excitation completed spring 1978 After period flight testing trim ming convinced machine would competitive best would necessity Lincoln Natt would mark return top competitors unable compete 1978 due atten dance World Championships would no easy wins Lincoln Victories two local California contests July proved Excitations ability score well flew left Nats optimistic state mind optimism appeared well-founded end qualifying semi-finals third place very much chase National Championship Unfortunately morning Walker Cup flyoff awoke Stunt fliers night maregale force winds aday airplanes tied tool boxes blown away hats tents impossible judging flying conditionsa real Stunt event opposed Precision Aerobatics championship Excitation performed admirably although definitely need horsepower ST40 capable providing Despite flying highest score second round having legitimate shot Walker Cup right up last flight day total effort up demands day competi tion ended up 5th place satisfactory totally satisfying national debut Although somewhat disappointed felt learned great deal Lincoln experience First foremost ST40 although ade quate conditions did provide reserve horsepower necessary top perform ances under poor conditions advantage 40 its use allowed Excitation legally flown 015 cables thought reduction drag thus achieved outweighed potential loss torque avallable larger engine performance Lincoln proved wrong however simple curea drawer full outstanding Vic Garner-prepared ST46s would drop right Since next major competition FAL Team Trials Dayton following month could use 46 018 anchor chalns required AMA rules inasmuch FAI rules require no minimum line diameter horsepower less drag equals increased performance event convinced 015 lines strong enough pay dearly conviction Once again took off beautiful San Francisco peninsula live Excita tion baggage pitand visions Poland dancing head Surely after performing near stand-off its anemic Lincoln condition new Charles Atlas-ized Excitation could finally leading rather scrambling pack Oh nearly first day Dayton appeared though indeed week last Hot muggy weather resultant high density alti tudes top guns scratching heads werent catching floundering airplanes fell out thin calm dead Ohio skies Excitation other hand performing perfectlyflying little 44 Model Aviation faster sure purposely gener ally taking delight its new-found muscles Such state affairs day qualifying everyone looking breath air finding noneand Excitation perform ing better ever end day topnot little sizable margin having highest score qualifying rounds Cloud Nine going far call Shareen #1 supporter telling shed better get some books speaking Polish good Talk about premature could write new definition Mr Webster two rounds following day things con tinued going way Most pilots still fighting dead airwith notable exception Stiletto McDonaldand going third last round very solid second place again shot * 1 just put practice flight about mentor impossible-to-please critic Bill Fitzgerald stated Youre finally starting get idea Such staggering praise first good thing say week pumped up moved pull-test area last flight convinced no way could kept off team Years hard work about pay off ever man ready OK Ted pull Ill release No sweat done thousand times never problem snap jerk.my lines perhaps heart up line broke.damn dont have spare lines dumb dumb dumb Wynn Paul asks What size lines need Ted dont know cant think come controls dont work What mean Theyre jammed full down Terrific something inside must have broken Bob Whitely Bart Klapinski bring knife surgery begins Bob Hunt Ted have fly after next flight lose turn incision complete bellcrank has swung past 1800 jammed over center fingers crossed force back. okay now .sure sure is. has .theres no time voice crowd flaps elevators bothdown.oh its trimmed way.no little down lot.what now .something must bentcontrol horn push rod.no way tell Bob Hunt Ted must fly now pass Oh boy go.is handle set right.who knows. ease wing-over. whoops well least know handle isnt right .try adjust inverted flight.nothings right. wont turn outside. almost stuck time. disaster ster k God its over ever over After numbers made team fallen pinnacle ignominious 6th Place emotional wreck came close quitting competition ever have Excita tion proving itself aptly named Unfortunately Jekyll Hyde relation ship capricious lady quite over As learn through toying emotions abusing psyche would let know finality complete examination home uncov ered severe trauma control system includ ing control horn twisted about 200 force jammed controlswhich caused previously inexplicable condition both flaps elevators being down about 150 same time also broken solder joint December 1981 45 According 10 aumnor on-field dis assembly allows model stored compact shipping case Extra small pieces stored Windy Urtnowskis Sweeper van rough facsimile author peers around edge instrument panel canopy dyed dark blue fabric dye photos author between arms horn flap control horn Surgery performed affected areas after recuperative retrimming Devil Lady appeared ready another sault Walker Cup Come 1980 made last pilgrimage Ohio Wilmington Nats Early week things going well prepared well before having trouble adjusting two days travel sleep finals held second day would have spectator perhaps happier thout knowing After day practice two days qualifying rounds very nearly disastrous first round semi-finals finally health airplane act together same time place fourth year row 3rd place entering Walker Cup flyoff once again optimism creeping out onto sleeve could lose sincere Let tell morning finals dawned little cloudy blustery no rain appeared imminent conditions ideal certainly superior Lincolns gales crack dawn unflappable buddy Bill Fitzgerald holding Garner ST46 barked life first planned three warm-up flights prior start compe tition uncharacteristically Excitation came off little rich cool morning air went perfunctorily through slow sloppy pattern rnn out both fuel nervous jitters After completing pattern habitually three outside triangles clear lines landing now Excitations final perversity 46 Model Aviation Supertigre 46 prepared author vu uarner sports Adam lain muffler Note cooling air inlet louvers Heated air needs room escape mere must large airoutlets larger inlets Finish Sig dope lots elbow grease file inch-thick tail requires careful shaping ninge iine allowtull range movement Note hatch fuselage hinge line allow access elevator control horn detail points can make lot dnmerence wnen youre up top three Ruling pens dry transfers trick Slightly taperea nap isa constant 17% wing chord Lines details done Rapidograph technical pen available art stores Rignm wing features storage compartment forthe Jim WalkerTrophy unfortunately little bit premature FULL-SIZE PLANSAVAILABLE SEE PAGE 140 3/007/8 LEAOING EDGE ALL WACO VERY LIGHT BALSA I*4LESS NOTED GEALSYARLE-Ua LITE-PLY GEAR2 WIGS NOTE RIGHT WING 3/4 SHORTER TRAB LEFT tSAPPANTS WA-SPAR 3 RIGHT S LEFT FLAPS L IN LENGTH UFOOGOT FOTORE 4 FLAP STAGE LINE SWEPT FERWARA EACH SIDE 0--~ 050 K FOAM WINGUj KOHPBENN CAL HARSHMAPLE MOUNT -.-3 TSP FLITE BELL- & ______CRAMS MAY BEMAKE ROOT SAD TIP RIB TEMPLATEST WING PLANSLRATITOTED HEAVY LI1SEE TEST ROOT SECTION SOFT BALSA TIPS 571150 TPS NOTE FLAT SATE TO AVOIDTT THINSE HINGING FLAP PORN DO NOT STROSBACR HUHEXTEND HERN FARTHER INTOU - IV4AASA TV KLETT NOLANFLAP THAW SPAWN FOR THEUH3/RGSTAG H ELEVATOR BEARINGSASIE REAGANRIA V ORINS AVE FLAPSA' IE SR ETNALSA IVWMEASHINSA A1ARERIBS II OUTBOARD WINS TSPSCHAP BALSA SANGEA SUPPORTS 110 PLACES 9 GEE TEAT FOR MSV32 PLY--'VA FORTAWAS/3D PLA STAB Fl THRO F3 ARE VA PLY- FA TH FH AGE VA BALSA LATS AI/GHOST WIPE FFOFTF4EDERFTNAINO GEAR EV RIB SCRAGGALSAFILLETSV1 'I ENSHE GEFACT-V8SVEET BALSAWINO GAO SAIL 3/32/5 LOIWERAN 3/A s/S MAPLE ENOJIE MDGNTSTLRTLE DEVIATOR S BOTTOM BUCKS SHOALS BE KOLDED OR FLANKEDVA SOFT USE FOLLOWED BACKS ANLY F TRA UTE WOGE IS AVAILABLE GSA FILER ALOCAS COWL N TSP BLOCA• V32 PLY SLUWLEP MEDIUM GALSA HOLLOWEDcoHALVED LABORS V4 LLBASAIIANSVERTICAL STAB B S -ArII Fl- FTG -T"TI 42FTFII. 575 OZ SNIFLOW TANKIFUSELAGSIDEVI~ThWIPE NNUES H -CZiSG-3D BELLCAAIAA MNT BOLT 75 SPNSER-B FLOORVIG PLYAND NOTS-_ EHAXY Mt IAKRROAC WIREASASSOOPA VA VENTRAL FR VA FUSELAGE ENGINE ST AKCOALING ARCARVE WHEELRENTS TO SIDESS/A TOEWTEEL SR SIMIARSUTLETSTREAMLINE SHAPE FROM TWO LAMINATlANS GE I/A A-AC COWL HALO DOWNAND CR0 GE I/DT BALSA VAPLS CROSS MEMBERSDESIGNED B DRAWN BY TED FANCIER WING SJ NW 75 AREA BAA AS IN LENGTH 47WEIGHT BA-HA 02 TRACING BY StE DRIHARCO SAGAS 175 L5 BOUNCE STEELS 0 5 5 4 5 K WEXc/TA77ON showed itself last inverted corner triangles gave jerk through lines heart dropped stomach realized what happening wavered up down once twice wave good-bye moved handle ineffectually hoping wrong wasnt. controls failed went concrete quarter lap later scatter ing debris about feet very startled Bill Fitzgerald haps final rude gesture endless criticism performance through said let know Upon sober reflection became obvious methat Excitations perverse nature result demonic forces simply poor execution preparation part pilot final failurea broken pin heavy duty 4-40 Kwik-Linkwas almost surely caused extreme load placed line failure 10 months previously link should have replaced wasnt result outstanding Stunt ships last two years memory design proven performer highest levels competition worthy project anyone interested serious Stunt activity second Excitationprobably renamed superstitious reasonsis nearing completion shop written time however preparation execution will worthy Excitations aerobatic potential wont giving away again Construction Excitation designed early 1978 incorporates design characteristics tested proven Imitation MA September October1979 Specifically designs utilize higher normal aspect ratio wing blunt leading edges narrow chord nearly full-span flaps long tail moment moderate size low aspect ratio horizontal stab elevator Finally refined control system used consists longer length control horns larger 3-in diameter circu lar bellcrank moves smaller custom ary control surfaces Rather reiterate design logic features suggest reread Imitation article general hy potheses unchanged Excitation generally conventional con struction unusual feature very thick built up stabilizer elevator Ill deal some detail moment wing wish stab elevator available J K Custom Foam Wings 10261 Janice Lynn Cypress CA 90630 strongly urge builders especially just getting started competitive aerobatics take advantage expertise John Poynter Foam wings accomplished artisans such John others have done make over night Stunt success stories anything since George Aldrichs Nobler straight light what get cheap wings available variety degrees completion ultimate J K Master series come sheeted leading trailing edges installed shaped lite ply spar gear supports shown plans place also available gear supports few bucks less However supports cheap insurance since literally have destroy whole wing break loose extremely important ifyou cant fly smooth pavement time J K wings come complete assem bly instructions showing bellcrank installation method joining panels simple butt joint reinforced around lightweight glass cloth Hobbypoxy Formula II glue wing can course built up conven tional fashion using root tip templates shown plans employing appropriate spars planking cap strips historical D-tube construction method wing tips carved light balsa hollowed Add ermanent tip weight make provision dictated flight testing original carried about 3/4 1 oz final trim inboard tip should have adjustable leadout guides either shown plans own favorite system forward foam spar located during design interfere leadouts during adjustment safe side might want remove outer 6 foam spar inboard wing allow additional leadout movement wing flaps can either built up shown plans have some light rigid t could carved shape stress must rigid Flexible flaps create impossi ble flight trim problems Again allow swept-forward hinge line must either use two horns complex difficult build im possible tweak else use Werwage single horn method inserting horn plywood rib sandwich right root simple easy build tweakable basic fuselage box conventional con struction -in sheet sides 1/32 ply doub lers l x -in maple motor mounts long eron top allow attractive shaping bulkheads shown three parts very light blocks available especially aft CG use upper lower sections either planking 3/32 x ps molding 1/16 balsa sheet case cowling nose Continued page 132 December1981 47 IFYOU CAN FLYA FALCON 56. / L READY~ YOURE TO LEARN HOW TO FLY SCALE WITh OUR DYNAMIC TAIL DRAGGER TRAINER0 GEE BEE Sportster just another pretty airplane perfect model get tricycle landing gears tail draggers nothing true sport scale builds easier Sportster Average time build airframe 8-10 hours Plans & illustrated instructions quite simple follow Ask dealer show TAIL DRAGGER N. better known GEE BEE Sportster I 0The Tail Dragger Trainer copyrighted COVERITE J L 420 BABYLON ROAD HORSHAM PENNSYLVANIA 19044 U 5 RUBBER STRIP FAI RUBBERMade USA SIZES 1/4 3/16 1/8 3/32 1/16 1mm thick 042 BOXED 16 ounces rubber per box PRICE $1200 per box postpaid USA NEW PIRELLI SIZES 6mm 3mm 1mm thick PRICE $1800 per hankapprox 1/2 kg TIMERS KSB Fuel DT $1150 ea plus 10% UPS Sole US Distributors & World-wide Sales Send 25 1981 catalog FAIModel Supply ence brain Things start come gether wonder took long Another tack same subject Helicop ters about training gear pondered training gear longtime cricket has nice wide stance wanted something longer skids looked like belong Helicopter stead plumbers junk pile discovered polyethelene golf club separator tubes Take tube cut two Stuff one-half oblong styrofoam fishing bobber end use instant glue soda hold bobbers Cover tubes favorite contact Paper Make four clamps springy steel strapping clamp tubes main gear legs bobbers come grommets run inner Nyrod radio compartment through skid hold antenna skids cost about $150 pair make durable springy light easy clean look almost like pontoons allow fly taxi scoot sideways grass Finally have never seen another model chopper fly Are state regional national organizations devoted Are directories Helicopter pilots could contact need help turn can help based limited experience would willing eager get people started hobby Lastly Ive enclosed some pix Cricket Semper Humilis will notice training skids other minor mods landing gear tail boom Im against modifying just its own sake good reasons Ive found Cricket very durable stable re sponsive few minor mods Ive able fly day about two months maintenance being cleaning oiling says lot Cricket HB 25 PDP Futaba electronics especially knew what kind stresses have put through Thanks listening Tom Gibbons way Toms letter received August bad progress again rate progress individual thing Ive student solo Aeronca Champ five hours have another couldnt solo Cessna 150 fifteen yet satisfied first solo Glenn Willison have doing little flying nearby parking lot Glenn just began flying recently called some instruction trim-out Cricket think weve fun probably cant tell expres sions Um can just figure out two stick radios work Chesney Rt 9 Box 621-A Greensboro NC 27409 Excitation Fancher Continued page 4 block should carved light balsa blocks procedure build fuselage box tack-glue cowl turtle deck top bottom blocks place proceed shape whole works near completion Once shaped pop off blocks pin fuselage box upside down firmly large flat building board Cut out belly cradle carefully align install wing Use slow-drying glue make strong joint Measure remeasure measure again nothing critical performance tail built-up just like small wing Make 1/32 plywood templates root tip ribs Sandwich appropriate number 1/16 rib blanks between templates sand shape Glue ribs spars ensuring 90 degrees spar properly aligned Add scrap balsa supports hinges time drying cut skins very light 1/16 balsa sheet Two stab four elevator skins necessary First glue stab skins spars dry use small paint brush apply Titebond glue ribs top bottom Pin skins securely ribs ensure uniform adhesion dry use long sanding block make flush surface glue leading edge Cut slots favorite hinges Dump shavings out leading edge gap install shape ing edge complete elevators first cut hinge slots match stab apply sheeting both sides once Titebond Shape dry have used good wood sanitary construction techniques should now have 140 sq stab elevator weighs ito 1 oz Now time install tail right Wrong After building Stunt ships 25 years having tails end up crooked despite strenuous efforts finally broke code No matter carefully align stab attach top bottom blocks after tail glued place will invariably twist fuselage way another thereby destroying perfect alignment answer install controls down last minor bit pushrod adjustment Leave just little space fore aft move ment stab achieving exact neutral finally glue place Now proceed permanently attach turtledeck already attached bottom block Only after dry fuselage made rigid can 132 Model Aviation P0 Box 3957 Torrance CA 90510 fmally secure tail place sure will remain way major components assembled can get down detail work Cut shape rudder vertical stabilizer a Hinge rudder vertical stab soft wire rudder can adjusted Glue place conventional location top rear fuselage Cut ventral fin balsa Install tall wheel wire reinforcing medium weight glass cloth Formula II Hobb$poxy original canopy 040 butyrate plastic molded vacuum box However commercially-available canopies could employed hint back RC teardrop-shaped canopies lend themselves very well style degree cockpit detail choice used go whole hog seats seatbelts instru ments fire extinguishers etc Current trends leaning toward basics pilot head few instruments darkly tinted canopy simulated painted-on cockpit carved balsa blocks imaginative cockpit de tailing have personally seen employed high-ranking officer Atianta Stunt Con spiracy refuse give initials last name began Dixon Colonel Tom flew neatly-built Nobler untinted clear canopy through interested bystander could view beautifully painted black cockpit interior strip paper neatly glued floor typed two words Cockpit Detail comes innovation technological breakthroughs cant top rebels comes finish Ill defer masters Until can build plane fillets dont look like Mt Saint Helens wont pretend give advice Whatever type finish use make neat light thing know about paint heavy design have included standard pre drafting numbers-sheet detailing design para meters Excitation comparison Imitation numbers will plainly show Excitation nearly identical aerodynamically major difference highly tapered wing primarily appearance resulted swept-forward flap hinge line achieve 67% taper ratio straight hinge line would have resulted highiy swept leading edge order place aerodynamic center proper location fuselage forward leading edge would have needed very shorttoo short allow tank fit swept-forward flaps will work smoothly single horn carefully constructed per drawings important consideration arms enter flaps right root very strongjoint therefore mandatory make plywood sandwich shown ensure adequate strength sandwich epoxied directly root flap Final weight should low 50-oz range best performance Excitation 650 sq area small current standards Higher weights will still fly well power loading becomes marginal particularly vertical ma neuvers couple trimming suggestions longerarm control system provides adequate mechanical advantage over control-surface air loads under severe circumstances setup shown 3-in bellcrank 90-in pushrod arm bellerank 75-in control horn arms results sensitive system conven tional 4-in handle such Hot Rock encourage use Baron-style adjustable handle provide control sensitivity suits taste Adding nose weight airplane aerodynamically unstable done simply desensitize control feel results airplane trimmed less its full aerobatic potential Optimum center gravity CG location can determined through flight testing Move CG aft quarter inch time observe flight certain point ship will go effortlessly around corner hard flat no tendency hunt after controls neutral ized far aft position will primarily determiend K stability factor design such Excitation long tail moment and/or large tail area will accept further aft CG will design short and/or small area tail hard flat corner achieved ship will probably too sensitive tastedont add nose weighL next important indication proper CG manner ship glides engine quits CG too far aft engine quits ship will immediately go light lines nose up slightly Smooth approaches will difficult may become impossible possibly hazardous upwind such case add nose weight until control positive Unless have very small tall thus adequate K factor will achieve two goals within fraction inch same CG location youve found proper CG adjust handle line spacing fine-tune sensitivity taste Once have achieved combi nation will have airplane com fortable fly yet aerodynamically trimmed its maximum potential large reserve available merely opening up line can R/C dealer 0MODELMANIA TO OUR CLIL COTITTOS ESE 44 otOURLYN S MODEL TA- F IPT C Wt4800CLSN NY 24 RETNEFOCI 144 3 FROM STATEN ISLANE TO F El F 0440 EAST CONE bLANC RAE F IT N 011100 FLU TO OPEN MOMTE4EC 15 5' 5SF F TAMPTIT Too OATI2TS SPECIALS GOOF LATIL SN 450 SR OP -C NL4I MR44UFATORERS NAME 9ISOERAPT SYSTEMS WV AM 30250EP7C P41 7253 14 151 oEP 0 593SEPSO AM 72 1401511 SEPT00 3045EPSO AM 72 22 SEP00 3950P2K 41 72 21K SEPT00 3960EPOK 41 22 4 244 oEPSO 40975EPOK N 72 3 21 [EPTO 398$EPEOC ANY AM 7 3990KPR5C OF' AM 7 48804PC1411-15114 4010KPSIO450 GAblE FOR SPECIAL PRICES AOl CETRI SSOEP0I SIGARTURE SERIES ESTS P0 mAP CO P41 4030TORPLITE oEALINO 10010 4820I4EOCON MI! CEO OOc 040AICREL AER PIATCF TOO t 8 03 FINIoAI RE II OT PECIET ES TOPFL1TE OQACA STEPOLL10 0 POL ITT AAENC MO lIE CL P 41114 4 POLL 408$PICRO 8 PEAR P oICC EoT 19 951 OFLITARA PGE4 2 ER 0 FOOL PATE2 05P04 EAGLE III 504-IOOEPLE POPTEC 1588101 -01CR 4A0 0 TOOC 41OCtOREEG GE14TLC LAO So AIRTPON4C OLOPI 11 1 0 40 ORLIME REELALENET RONOT 0 FL 045 008 CORI 3440 ThOPPIFIO LW ESE DSPC OTES INvLLICC N oCLI AFIRE lEO E C CL ACE OROEP RECIPE [C 10 FOP C SEN ALL ORCECSINOJIRC ST L44AIIA F 0 800 470 P2T4,440 ROES yrIlL PEICES OLBOC 3 T 084 COK- 403 7 rPUP004430 L4l44OoL4PPE44T PILl PEE L 4 44136 SECEC0 Ci 0 0 bIlE Oi 1044 StEARS NO COO ALL PRICE IIILL ICE 00 ,4l4 fl4 1* T NAIlER 045 lIT TEl oNC.CoO, I N MT BALK TO TWAL C COF'C hU RRAI4K 8 4 513005L0C OF oW 00 P114 44100 1500550 010 00 00 ST ER 7808 ACE 01 44A F 1 S4C ZR 800 8FF C:TEA 04 00OIl F TOTAL FOP TAIPPIF4U OLL42141' IENC0SALES ARC FIlIAL ES! SIT IT L4IAL NECK TO CLEAR 44 AC bElT 440 10 ALES TAOENE A0E FF AL I4S TOE CROP ANT3 FE OUKIC PEOLIIEC RCT December1981 133 NOW ThERES PRIMER RECOMMENDED FOR COVEPITE New Primex solves nagging problem Now can sure first time getting great adhesion Now remove masking tape paint ioh will stay down Primex ultra-light smooth very quick dry Easy apply brush extremely sandable Primex now primer use Coverite ISuper Permagloss & Silkspun equally great wood tissue silk nylon dacron Look bright yellow 9CEVERITEJ L 420 BABYLON ROAD HORSHAM PENNSYLVANIA 19044 U S Year Limited nty Pre-Dnhled Props Avail Ask About Custom- Built KIORITZ Engines Deep Fins Optimum Cooling 21/4 Flywheel Small Magneto 1 5/am Six Bolt Aluminum Hub Carb Needles &Throttle Accessible Engine Running Godfrey Points Sealed Rear Housing $19995 pay shIp pre-paid orders Mufflers Now Availablel DEALERS WELCOME 242 cc 397ccSPECIFICATIONS 32HP 8000 rpmWoibto Pomp CarbBall Bearmngs Crank ght B b3 Riog PistonCaged Rollers Rod ond Foton Finn GIBBS HOBBY & RESEARCH 6195 HIlifleld St NW N CANTON OHIO 44720 Phone 21 6 499-8854 after 600 PM C ELECTRONIC SERVICENTER FACTORY AUTHORIZED WARRANTY SERVICE FOR KRAFT over 35 other manufacturers Tired wasting money radio service os per formance too important jeopardized inexperien ced uncaring technician company just person re pairs RC equipment RCer cares about radio ME 24 HOUR SERVICE NEAL WARREN 3 South 21St Street erPh iladelphia PA 19103 Tel 215 564-0800 24 HOUR SERVICE Mon-Fri 9AM-53OPM AO Wed night till 8PM Sat 9AM Noon spacing important capability flying high winds An airplane aerodynamically detuned through addition nose weight will have no reserve turn available conditions demand conclusion Excitation merely another Nobler new cosmetics truly better mousetrap designed fill mans demands capability adapt variety flying styles Simply because has way performance available ever called win todays Precision Aerobatics arena properly trimmed Excitation can adjusted suit Precision Aerobatics flier about CL Scale/Byron Continued page 49 East Coast am sure several people familiar aircraft also excel lent photographer pictures reflect An out standing aircraft Profile Publications has come atten tion Profile Publications being put back print again outstanding modeling assistance Scale modelers am looking forward acquiring entire series now have about 70 something Scale modeler should have because value 5-views come publication probably will expensive past will worth penny serious Scale modeler historian Look advertised upcoming issues of model magazines Dont let slide through hands like once did Richard P Byron 2506 So 16 1st Circle Omaha NE 68130 CL Racing/Lee Continued page 50 ing Racing headed us has own opinion since have pencil hand heres Ther will probably always core avid AMA Racing enthusiasts likelihood ones will always found Nats sad part year after year hard-nosed group seems little smaller year before isnt new infusion interest provide numbers used exist have Racers gone What needs done get interest back lot has written about various Racing events types events column other publications generally accepted term inology coined Jim Thomerson True Sport TS Just Another Racing JAR event Basically TS event extremely specific its rules effort allow sport flier use sport flying equipment competitive TS event should capable being flown equipment available local hobby shop dominated nonavailable equipment various TS events have heard recently generally specify engine brand model plane configuration etc JAR event usually limited version normal AMA Racing event Rules added keep performance level down general events leave lot room progress events tend follow same curve popularity AMA events have followed initial burst popularity being followed decline interest rules 134 Model Aviation K IORIT ENGINES BY GIBBS HOBBY & RESEARCH Original Developer Factory Trained Authorized Master Service Dealer r7
Edition: Model Aviation - 1981/12
Page Numbers: 44, 45, 46, 47, 132, 133, 134
If have interest form corn petition story must reading authors odyssey through three Nats two close-butno-champagne endings culminating heartbreaker striking whether youre CL Precision Aerobatics Plans cluded construction very special airplane@Ted Fancher EXCITATION Little did know time chose name prophetic would become Never experience has airplane taken its builder/flier such emotional roller coaster ride did late almost great Excitation Excitation completed spring 1978 After period flight testing trim ming convinced machine would competitive best would necessity Lincoln Natt would mark return top competitors unable compete 1978 due atten dance World Championships would no easy wins Lincoln Victories two local California contests July proved Excitations ability score well flew left Nats optimistic state mind optimism appeared well-founded end qualifying semi-finals third place very much chase National Championship Unfortunately morning Walker Cup flyoff awoke Stunt fliers night maregale force winds aday airplanes tied tool boxes blown away hats tents impossible judging flying conditionsa real Stunt event opposed Precision Aerobatics championship Excitation performed admirably although definitely need horsepower ST40 capable providing Despite flying highest score second round having legitimate shot Walker Cup right up last flight day total effort up demands day competi tion ended up 5th place satisfactory totally satisfying national debut Although somewhat disappointed felt learned great deal Lincoln experience First foremost ST40 although ade quate conditions did provide reserve horsepower necessary top perform ances under poor conditions advantage 40 its use allowed Excitation legally flown 015 cables thought reduction drag thus achieved outweighed potential loss torque avallable larger engine performance Lincoln proved wrong however simple curea drawer full outstanding Vic Garner-prepared ST46s would drop right Since next major competition FAL Team Trials Dayton following month could use 46 018 anchor chalns required AMA rules inasmuch FAI rules require no minimum line diameter horsepower less drag equals increased performance event convinced 015 lines strong enough pay dearly conviction Once again took off beautiful San Francisco peninsula live Excita tion baggage pitand visions Poland dancing head Surely after performing near stand-off its anemic Lincoln condition new Charles Atlas-ized Excitation could finally leading rather scrambling pack Oh nearly first day Dayton appeared though indeed week last Hot muggy weather resultant high density alti tudes top guns scratching heads werent catching floundering airplanes fell out thin calm dead Ohio skies Excitation other hand performing perfectlyflying little 44 Model Aviation faster sure purposely gener ally taking delight its new-found muscles Such state affairs day qualifying everyone looking breath air finding noneand Excitation perform ing better ever end day topnot little sizable margin having highest score qualifying rounds Cloud Nine going far call Shareen #1 supporter telling shed better get some books speaking Polish good Talk about premature could write new definition Mr Webster two rounds following day things con tinued going way Most pilots still fighting dead airwith notable exception Stiletto McDonaldand going third last round very solid second place again shot * 1 just put practice flight about mentor impossible-to-please critic Bill Fitzgerald stated Youre finally starting get idea Such staggering praise first good thing say week pumped up moved pull-test area last flight convinced no way could kept off team Years hard work about pay off ever man ready OK Ted pull Ill release No sweat done thousand times never problem snap jerk.my lines perhaps heart up line broke.damn dont have spare lines dumb dumb dumb Wynn Paul asks What size lines need Ted dont know cant think come controls dont work What mean Theyre jammed full down Terrific something inside must have broken Bob Whitely Bart Klapinski bring knife surgery begins Bob Hunt Ted have fly after next flight lose turn incision complete bellcrank has swung past 1800 jammed over center fingers crossed force back. okay now .sure sure is. has .theres no time voice crowd flaps elevators bothdown.oh its trimmed way.no little down lot.what now .something must bentcontrol horn push rod.no way tell Bob Hunt Ted must fly now pass Oh boy go.is handle set right.who knows. ease wing-over. whoops well least know handle isnt right .try adjust inverted flight.nothings right. wont turn outside. almost stuck time. disaster ster k God its over ever over After numbers made team fallen pinnacle ignominious 6th Place emotional wreck came close quitting competition ever have Excita tion proving itself aptly named Unfortunately Jekyll Hyde relation ship capricious lady quite over As learn through toying emotions abusing psyche would let know finality complete examination home uncov ered severe trauma control system includ ing control horn twisted about 200 force jammed controlswhich caused previously inexplicable condition both flaps elevators being down about 150 same time also broken solder joint December 1981 45 According 10 aumnor on-field dis assembly allows model stored compact shipping case Extra small pieces stored Windy Urtnowskis Sweeper van rough facsimile author peers around edge instrument panel canopy dyed dark blue fabric dye photos author between arms horn flap control horn Surgery performed affected areas after recuperative retrimming Devil Lady appeared ready another sault Walker Cup Come 1980 made last pilgrimage Ohio Wilmington Nats Early week things going well prepared well before having trouble adjusting two days travel sleep finals held second day would have spectator perhaps happier thout knowing After day practice two days qualifying rounds very nearly disastrous first round semi-finals finally health airplane act together same time place fourth year row 3rd place entering Walker Cup flyoff once again optimism creeping out onto sleeve could lose sincere Let tell morning finals dawned little cloudy blustery no rain appeared imminent conditions ideal certainly superior Lincolns gales crack dawn unflappable buddy Bill Fitzgerald holding Garner ST46 barked life first planned three warm-up flights prior start compe tition uncharacteristically Excitation came off little rich cool morning air went perfunctorily through slow sloppy pattern rnn out both fuel nervous jitters After completing pattern habitually three outside triangles clear lines landing now Excitations final perversity 46 Model Aviation Supertigre 46 prepared author vu uarner sports Adam lain muffler Note cooling air inlet louvers Heated air needs room escape mere must large airoutlets larger inlets Finish Sig dope lots elbow grease file inch-thick tail requires careful shaping ninge iine allowtull range movement Note hatch fuselage hinge line allow access elevator control horn detail points can make lot dnmerence wnen youre up top three Ruling pens dry transfers trick Slightly taperea nap isa constant 17% wing chord Lines details done Rapidograph technical pen available art stores Rignm wing features storage compartment forthe Jim WalkerTrophy unfortunately little bit premature FULL-SIZE PLANSAVAILABLE SEE PAGE 140 3/007/8 LEAOING EDGE ALL WACO VERY LIGHT BALSA I*4LESS NOTED GEALSYARLE-Ua LITE-PLY GEAR2 WIGS NOTE RIGHT WING 3/4 SHORTER TRAB LEFT tSAPPANTS WA-SPAR 3 RIGHT S LEFT FLAPS L IN LENGTH UFOOGOT FOTORE 4 FLAP STAGE LINE SWEPT FERWARA EACH SIDE 0--~ 050 K FOAM WINGUj KOHPBENN CAL HARSHMAPLE MOUNT -.-3 TSP FLITE BELL- & ______CRAMS MAY BEMAKE ROOT SAD TIP RIB TEMPLATEST WING PLANSLRATITOTED HEAVY LI1SEE TEST ROOT SECTION SOFT BALSA TIPS 571150 TPS NOTE FLAT SATE TO AVOIDTT THINSE HINGING FLAP PORN DO NOT STROSBACR HUHEXTEND HERN FARTHER INTOU - IV4AASA TV KLETT NOLANFLAP THAW SPAWN FOR THEUH3/RGSTAG H ELEVATOR BEARINGSASIE REAGANRIA V ORINS AVE FLAPSA' IE SR ETNALSA IVWMEASHINSA A1ARERIBS II OUTBOARD WINS TSPSCHAP BALSA SANGEA SUPPORTS 110 PLACES 9 GEE TEAT FOR MSV32 PLY--'VA FORTAWAS/3D PLA STAB Fl THRO F3 ARE VA PLY- FA TH FH AGE VA BALSA LATS AI/GHOST WIPE FFOFTF4EDERFTNAINO GEAR EV RIB SCRAGGALSAFILLETSV1 'I ENSHE GEFACT-V8SVEET BALSAWINO GAO SAIL 3/32/5 LOIWERAN 3/A s/S MAPLE ENOJIE MDGNTSTLRTLE DEVIATOR S BOTTOM BUCKS SHOALS BE KOLDED OR FLANKEDVA SOFT USE FOLLOWED BACKS ANLY F TRA UTE WOGE IS AVAILABLE GSA FILER ALOCAS COWL N TSP BLOCA• V32 PLY SLUWLEP MEDIUM GALSA HOLLOWEDcoHALVED LABORS V4 LLBASAIIANSVERTICAL STAB B S -ArII Fl- FTG -T"TI 42FTFII. 575 OZ SNIFLOW TANKIFUSELAGSIDEVI~ThWIPE NNUES H -CZiSG-3D BELLCAAIAA MNT BOLT 75 SPNSER-B FLOORVIG PLYAND NOTS-_ EHAXY Mt IAKRROAC WIREASASSOOPA VA VENTRAL FR VA FUSELAGE ENGINE ST AKCOALING ARCARVE WHEELRENTS TO SIDESS/A TOEWTEEL SR SIMIARSUTLETSTREAMLINE SHAPE FROM TWO LAMINATlANS GE I/A A-AC COWL HALO DOWNAND CR0 GE I/DT BALSA VAPLS CROSS MEMBERSDESIGNED B DRAWN BY TED FANCIER WING SJ NW 75 AREA BAA AS IN LENGTH 47WEIGHT BA-HA 02 TRACING BY StE DRIHARCO SAGAS 175 L5 BOUNCE STEELS 0 5 5 4 5 K WEXc/TA77ON showed itself last inverted corner triangles gave jerk through lines heart dropped stomach realized what happening wavered up down once twice wave good-bye moved handle ineffectually hoping wrong wasnt. controls failed went concrete quarter lap later scatter ing debris about feet very startled Bill Fitzgerald haps final rude gesture endless criticism performance through said let know Upon sober reflection became obvious methat Excitations perverse nature result demonic forces simply poor execution preparation part pilot final failurea broken pin heavy duty 4-40 Kwik-Linkwas almost surely caused extreme load placed line failure 10 months previously link should have replaced wasnt result outstanding Stunt ships last two years memory design proven performer highest levels competition worthy project anyone interested serious Stunt activity second Excitationprobably renamed superstitious reasonsis nearing completion shop written time however preparation execution will worthy Excitations aerobatic potential wont giving away again Construction Excitation designed early 1978 incorporates design characteristics tested proven Imitation MA September October1979 Specifically designs utilize higher normal aspect ratio wing blunt leading edges narrow chord nearly full-span flaps long tail moment moderate size low aspect ratio horizontal stab elevator Finally refined control system used consists longer length control horns larger 3-in diameter circu lar bellcrank moves smaller custom ary control surfaces Rather reiterate design logic features suggest reread Imitation article general hy potheses unchanged Excitation generally conventional con struction unusual feature very thick built up stabilizer elevator Ill deal some detail moment wing wish stab elevator available J K Custom Foam Wings 10261 Janice Lynn Cypress CA 90630 strongly urge builders especially just getting started competitive aerobatics take advantage expertise John Poynter Foam wings accomplished artisans such John others have done make over night Stunt success stories anything since George Aldrichs Nobler straight light what get cheap wings available variety degrees completion ultimate J K Master series come sheeted leading trailing edges installed shaped lite ply spar gear supports shown plans place also available gear supports few bucks less However supports cheap insurance since literally have destroy whole wing break loose extremely important ifyou cant fly smooth pavement time J K wings come complete assem bly instructions showing bellcrank installation method joining panels simple butt joint reinforced around lightweight glass cloth Hobbypoxy Formula II glue wing can course built up conven tional fashion using root tip templates shown plans employing appropriate spars planking cap strips historical D-tube construction method wing tips carved light balsa hollowed Add ermanent tip weight make provision dictated flight testing original carried about 3/4 1 oz final trim inboard tip should have adjustable leadout guides either shown plans own favorite system forward foam spar located during design interfere leadouts during adjustment safe side might want remove outer 6 foam spar inboard wing allow additional leadout movement wing flaps can either built up shown plans have some light rigid t could carved shape stress must rigid Flexible flaps create impossi ble flight trim problems Again allow swept-forward hinge line must either use two horns complex difficult build im possible tweak else use Werwage single horn method inserting horn plywood rib sandwich right root simple easy build tweakable basic fuselage box conventional con struction -in sheet sides 1/32 ply doub lers l x -in maple motor mounts long eron top allow attractive shaping bulkheads shown three parts very light blocks available especially aft CG use upper lower sections either planking 3/32 x ps molding 1/16 balsa sheet case cowling nose Continued page 132 December1981 47 IFYOU CAN FLYA FALCON 56. / L READY~ YOURE TO LEARN HOW TO FLY SCALE WITh OUR DYNAMIC TAIL DRAGGER TRAINER0 GEE BEE Sportster just another pretty airplane perfect model get tricycle landing gears tail draggers nothing true sport scale builds easier Sportster Average time build airframe 8-10 hours Plans & illustrated instructions quite simple follow Ask dealer show TAIL DRAGGER N. better known GEE BEE Sportster I 0The Tail Dragger Trainer copyrighted COVERITE J L 420 BABYLON ROAD HORSHAM PENNSYLVANIA 19044 U 5 RUBBER STRIP FAI RUBBERMade USA SIZES 1/4 3/16 1/8 3/32 1/16 1mm thick 042 BOXED 16 ounces rubber per box PRICE $1200 per box postpaid USA NEW PIRELLI SIZES 6mm 3mm 1mm thick PRICE $1800 per hankapprox 1/2 kg TIMERS KSB Fuel DT $1150 ea plus 10% UPS Sole US Distributors & World-wide Sales Send 25 1981 catalog FAIModel Supply ence brain Things start come gether wonder took long Another tack same subject Helicop ters about training gear pondered training gear longtime cricket has nice wide stance wanted something longer skids looked like belong Helicopter stead plumbers junk pile discovered polyethelene golf club separator tubes Take tube cut two Stuff one-half oblong styrofoam fishing bobber end use instant glue soda hold bobbers Cover tubes favorite contact Paper Make four clamps springy steel strapping clamp tubes main gear legs bobbers come grommets run inner Nyrod radio compartment through skid hold antenna skids cost about $150 pair make durable springy light easy clean look almost like pontoons allow fly taxi scoot sideways grass Finally have never seen another model chopper fly Are state regional national organizations devoted Are directories Helicopter pilots could contact need help turn can help based limited experience would willing eager get people started hobby Lastly Ive enclosed some pix Cricket Semper Humilis will notice training skids other minor mods landing gear tail boom Im against modifying just its own sake good reasons Ive found Cricket very durable stable re sponsive few minor mods Ive able fly day about two months maintenance being cleaning oiling says lot Cricket HB 25 PDP Futaba electronics especially knew what kind stresses have put through Thanks listening Tom Gibbons way Toms letter received August bad progress again rate progress individual thing Ive student solo Aeronca Champ five hours have another couldnt solo Cessna 150 fifteen yet satisfied first solo Glenn Willison have doing little flying nearby parking lot Glenn just began flying recently called some instruction trim-out Cricket think weve fun probably cant tell expres sions Um can just figure out two stick radios work Chesney Rt 9 Box 621-A Greensboro NC 27409 Excitation Fancher Continued page 4 block should carved light balsa blocks procedure build fuselage box tack-glue cowl turtle deck top bottom blocks place proceed shape whole works near completion Once shaped pop off blocks pin fuselage box upside down firmly large flat building board Cut out belly cradle carefully align install wing Use slow-drying glue make strong joint Measure remeasure measure again nothing critical performance tail built-up just like small wing Make 1/32 plywood templates root tip ribs Sandwich appropriate number 1/16 rib blanks between templates sand shape Glue ribs spars ensuring 90 degrees spar properly aligned Add scrap balsa supports hinges time drying cut skins very light 1/16 balsa sheet Two stab four elevator skins necessary First glue stab skins spars dry use small paint brush apply Titebond glue ribs top bottom Pin skins securely ribs ensure uniform adhesion dry use long sanding block make flush surface glue leading edge Cut slots favorite hinges Dump shavings out leading edge gap install shape ing edge complete elevators first cut hinge slots match stab apply sheeting both sides once Titebond Shape dry have used good wood sanitary construction techniques should now have 140 sq stab elevator weighs ito 1 oz Now time install tail right Wrong After building Stunt ships 25 years having tails end up crooked despite strenuous efforts finally broke code No matter carefully align stab attach top bottom blocks after tail glued place will invariably twist fuselage way another thereby destroying perfect alignment answer install controls down last minor bit pushrod adjustment Leave just little space fore aft move ment stab achieving exact neutral finally glue place Now proceed permanently attach turtledeck already attached bottom block Only after dry fuselage made rigid can 132 Model Aviation P0 Box 3957 Torrance CA 90510 fmally secure tail place sure will remain way major components assembled can get down detail work Cut shape rudder vertical stabilizer a Hinge rudder vertical stab soft wire rudder can adjusted Glue place conventional location top rear fuselage Cut ventral fin balsa Install tall wheel wire reinforcing medium weight glass cloth Formula II Hobb$poxy original canopy 040 butyrate plastic molded vacuum box However commercially-available canopies could employed hint back RC teardrop-shaped canopies lend themselves very well style degree cockpit detail choice used go whole hog seats seatbelts instru ments fire extinguishers etc Current trends leaning toward basics pilot head few instruments darkly tinted canopy simulated painted-on cockpit carved balsa blocks imaginative cockpit de tailing have personally seen employed high-ranking officer Atianta Stunt Con spiracy refuse give initials last name began Dixon Colonel Tom flew neatly-built Nobler untinted clear canopy through interested bystander could view beautifully painted black cockpit interior strip paper neatly glued floor typed two words Cockpit Detail comes innovation technological breakthroughs cant top rebels comes finish Ill defer masters Until can build plane fillets dont look like Mt Saint Helens wont pretend give advice Whatever type finish use make neat light thing know about paint heavy design have included standard pre drafting numbers-sheet detailing design para meters Excitation comparison Imitation numbers will plainly show Excitation nearly identical aerodynamically major difference highly tapered wing primarily appearance resulted swept-forward flap hinge line achieve 67% taper ratio straight hinge line would have resulted highiy swept leading edge order place aerodynamic center proper location fuselage forward leading edge would have needed very shorttoo short allow tank fit swept-forward flaps will work smoothly single horn carefully constructed per drawings important consideration arms enter flaps right root very strongjoint therefore mandatory make plywood sandwich shown ensure adequate strength sandwich epoxied directly root flap Final weight should low 50-oz range best performance Excitation 650 sq area small current standards Higher weights will still fly well power loading becomes marginal particularly vertical ma neuvers couple trimming suggestions longerarm control system provides adequate mechanical advantage over control-surface air loads under severe circumstances setup shown 3-in bellcrank 90-in pushrod arm bellerank 75-in control horn arms results sensitive system conven tional 4-in handle such Hot Rock encourage use Baron-style adjustable handle provide control sensitivity suits taste Adding nose weight airplane aerodynamically unstable done simply desensitize control feel results airplane trimmed less its full aerobatic potential Optimum center gravity CG location can determined through flight testing Move CG aft quarter inch time observe flight certain point ship will go effortlessly around corner hard flat no tendency hunt after controls neutral ized far aft position will primarily determiend K stability factor design such Excitation long tail moment and/or large tail area will accept further aft CG will design short and/or small area tail hard flat corner achieved ship will probably too sensitive tastedont add nose weighL next important indication proper CG manner ship glides engine quits CG too far aft engine quits ship will immediately go light lines nose up slightly Smooth approaches will difficult may become impossible possibly hazardous upwind such case add nose weight until control positive Unless have very small tall thus adequate K factor will achieve two goals within fraction inch same CG location youve found proper CG adjust handle line spacing fine-tune sensitivity taste Once have achieved combi nation will have airplane com fortable fly yet aerodynamically trimmed its maximum potential large reserve available merely opening up line can R/C dealer 0MODELMANIA TO OUR CLIL COTITTOS ESE 44 otOURLYN S MODEL TA- F IPT C Wt4800CLSN NY 24 RETNEFOCI 144 3 FROM STATEN ISLANE TO F El F 0440 EAST CONE bLANC RAE F IT N 011100 FLU TO OPEN MOMTE4EC 15 5' 5SF F TAMPTIT Too OATI2TS SPECIALS GOOF LATIL SN 450 SR OP -C NL4I MR44UFATORERS NAME 9ISOERAPT SYSTEMS WV AM 30250EP7C P41 7253 14 151 oEP 0 593SEPSO AM 72 1401511 SEPT00 3045EPSO AM 72 22 SEP00 3950P2K 41 72 21K SEPT00 3960EPOK 41 22 4 244 oEPSO 40975EPOK N 72 3 21 [EPTO 398$EPEOC ANY AM 7 3990KPR5C OF' AM 7 48804PC1411-15114 4010KPSIO450 GAblE FOR SPECIAL PRICES AOl CETRI SSOEP0I SIGARTURE SERIES ESTS P0 mAP CO P41 4030TORPLITE oEALINO 10010 4820I4EOCON MI! CEO OOc 040AICREL AER PIATCF TOO t 8 03 FINIoAI RE II OT PECIET ES TOPFL1TE OQACA STEPOLL10 0 POL ITT AAENC MO lIE CL P 41114 4 POLL 408$PICRO 8 PEAR P oICC EoT 19 951 OFLITARA PGE4 2 ER 0 FOOL PATE2 05P04 EAGLE III 504-IOOEPLE POPTEC 1588101 -01CR 4A0 0 TOOC 41OCtOREEG GE14TLC LAO So AIRTPON4C OLOPI 11 1 0 40 ORLIME REELALENET RONOT 0 FL 045 008 CORI 3440 ThOPPIFIO LW ESE DSPC OTES INvLLICC N oCLI AFIRE lEO E C CL ACE OROEP RECIPE [C 10 FOP C SEN ALL ORCECSINOJIRC ST L44AIIA F 0 800 470 P2T4,440 ROES yrIlL PEICES OLBOC 3 T 084 COK- 403 7 rPUP004430 L4l44OoL4PPE44T PILl PEE L 4 44136 SECEC0 Ci 0 0 bIlE Oi 1044 StEARS NO COO ALL PRICE IIILL ICE 00 ,4l4 fl4 1* T NAIlER 045 lIT TEl oNC.CoO, I N MT BALK TO TWAL C COF'C hU RRAI4K 8 4 513005L0C OF oW 00 P114 44100 1500550 010 00 00 ST ER 7808 ACE 01 44A F 1 S4C ZR 800 8FF C:TEA 04 00OIl F TOTAL FOP TAIPPIF4U OLL42141' IENC0SALES ARC FIlIAL ES! SIT IT L4IAL NECK TO CLEAR 44 AC bElT 440 10 ALES TAOENE A0E FF AL I4S TOE CROP ANT3 FE OUKIC PEOLIIEC RCT December1981 133 NOW ThERES PRIMER RECOMMENDED FOR COVEPITE New Primex solves nagging problem Now can sure first time getting great adhesion Now remove masking tape paint ioh will stay down Primex ultra-light smooth very quick dry Easy apply brush extremely sandable Primex now primer use Coverite ISuper Permagloss & Silkspun equally great wood tissue silk nylon dacron Look bright yellow 9CEVERITEJ L 420 BABYLON ROAD HORSHAM PENNSYLVANIA 19044 U S Year Limited nty Pre-Dnhled Props Avail Ask About Custom- Built KIORITZ Engines Deep Fins Optimum Cooling 21/4 Flywheel Small Magneto 1 5/am Six Bolt Aluminum Hub Carb Needles &Throttle Accessible Engine Running Godfrey Points Sealed Rear Housing $19995 pay shIp pre-paid orders Mufflers Now Availablel DEALERS WELCOME 242 cc 397ccSPECIFICATIONS 32HP 8000 rpmWoibto Pomp CarbBall Bearmngs Crank ght B b3 Riog PistonCaged Rollers Rod ond Foton Finn GIBBS HOBBY & RESEARCH 6195 HIlifleld St NW N CANTON OHIO 44720 Phone 21 6 499-8854 after 600 PM C ELECTRONIC SERVICENTER FACTORY AUTHORIZED WARRANTY SERVICE FOR KRAFT over 35 other manufacturers Tired wasting money radio service os per formance too important jeopardized inexperien ced uncaring technician company just person re pairs RC equipment RCer cares about radio ME 24 HOUR SERVICE NEAL WARREN 3 South 21St Street erPh iladelphia PA 19103 Tel 215 564-0800 24 HOUR SERVICE Mon-Fri 9AM-53OPM AO Wed night till 8PM Sat 9AM Noon spacing important capability flying high winds An airplane aerodynamically detuned through addition nose weight will have no reserve turn available conditions demand conclusion Excitation merely another Nobler new cosmetics truly better mousetrap designed fill mans demands capability adapt variety flying styles Simply because has way performance available ever called win todays Precision Aerobatics arena properly trimmed Excitation can adjusted suit Precision Aerobatics flier about CL Scale/Byron Continued page 49 East Coast am sure several people familiar aircraft also excel lent photographer pictures reflect An out standing aircraft Profile Publications has come atten tion Profile Publications being put back print again outstanding modeling assistance Scale modelers am looking forward acquiring entire series now have about 70 something Scale modeler should have because value 5-views come publication probably will expensive past will worth penny serious Scale modeler historian Look advertised upcoming issues of model magazines Dont let slide through hands like once did Richard P Byron 2506 So 16 1st Circle Omaha NE 68130 CL Racing/Lee Continued page 50 ing Racing headed us has own opinion since have pencil hand heres Ther will probably always core avid AMA Racing enthusiasts likelihood ones will always found Nats sad part year after year hard-nosed group seems little smaller year before isnt new infusion interest provide numbers used exist have Racers gone What needs done get interest back lot has written about various Racing events types events column other publications generally accepted term inology coined Jim Thomerson True Sport TS Just Another Racing JAR event Basically TS event extremely specific its rules effort allow sport flier use sport flying equipment competitive TS event should capable being flown equipment available local hobby shop dominated nonavailable equipment various TS events have heard recently generally specify engine brand model plane configuration etc JAR event usually limited version normal AMA Racing event Rules added keep performance level down general events leave lot room progress events tend follow same curve popularity AMA events have followed initial burst popularity being followed decline interest rules 134 Model Aviation K IORIT ENGINES BY GIBBS HOBBY & RESEARCH Original Developer Factory Trained Authorized Master Service Dealer r7
Edition: Model Aviation - 1981/12
Page Numbers: 44, 45, 46, 47, 132, 133, 134
If have interest form corn petition story must reading authors odyssey through three Nats two close-butno-champagne endings culminating heartbreaker striking whether youre CL Precision Aerobatics Plans cluded construction very special airplane@Ted Fancher EXCITATION Little did know time chose name prophetic would become Never experience has airplane taken its builder/flier such emotional roller coaster ride did late almost great Excitation Excitation completed spring 1978 After period flight testing trim ming convinced machine would competitive best would necessity Lincoln Natt would mark return top competitors unable compete 1978 due atten dance World Championships would no easy wins Lincoln Victories two local California contests July proved Excitations ability score well flew left Nats optimistic state mind optimism appeared well-founded end qualifying semi-finals third place very much chase National Championship Unfortunately morning Walker Cup flyoff awoke Stunt fliers night maregale force winds aday airplanes tied tool boxes blown away hats tents impossible judging flying conditionsa real Stunt event opposed Precision Aerobatics championship Excitation performed admirably although definitely need horsepower ST40 capable providing Despite flying highest score second round having legitimate shot Walker Cup right up last flight day total effort up demands day competi tion ended up 5th place satisfactory totally satisfying national debut Although somewhat disappointed felt learned great deal Lincoln experience First foremost ST40 although ade quate conditions did provide reserve horsepower necessary top perform ances under poor conditions advantage 40 its use allowed Excitation legally flown 015 cables thought reduction drag thus achieved outweighed potential loss torque avallable larger engine performance Lincoln proved wrong however simple curea drawer full outstanding Vic Garner-prepared ST46s would drop right Since next major competition FAL Team Trials Dayton following month could use 46 018 anchor chalns required AMA rules inasmuch FAI rules require no minimum line diameter horsepower less drag equals increased performance event convinced 015 lines strong enough pay dearly conviction Once again took off beautiful San Francisco peninsula live Excita tion baggage pitand visions Poland dancing head Surely after performing near stand-off its anemic Lincoln condition new Charles Atlas-ized Excitation could finally leading rather scrambling pack Oh nearly first day Dayton appeared though indeed week last Hot muggy weather resultant high density alti tudes top guns scratching heads werent catching floundering airplanes fell out thin calm dead Ohio skies Excitation other hand performing perfectlyflying little 44 Model Aviation faster sure purposely gener ally taking delight its new-found muscles Such state affairs day qualifying everyone looking breath air finding noneand Excitation perform ing better ever end day topnot little sizable margin having highest score qualifying rounds Cloud Nine going far call Shareen #1 supporter telling shed better get some books speaking Polish good Talk about premature could write new definition Mr Webster two rounds following day things con tinued going way Most pilots still fighting dead airwith notable exception Stiletto McDonaldand going third last round very solid second place again shot * 1 just put practice flight about mentor impossible-to-please critic Bill Fitzgerald stated Youre finally starting get idea Such staggering praise first good thing say week pumped up moved pull-test area last flight convinced no way could kept off team Years hard work about pay off ever man ready OK Ted pull Ill release No sweat done thousand times never problem snap jerk.my lines perhaps heart up line broke.damn dont have spare lines dumb dumb dumb Wynn Paul asks What size lines need Ted dont know cant think come controls dont work What mean Theyre jammed full down Terrific something inside must have broken Bob Whitely Bart Klapinski bring knife surgery begins Bob Hunt Ted have fly after next flight lose turn incision complete bellcrank has swung past 1800 jammed over center fingers crossed force back. okay now .sure sure is. has .theres no time voice crowd flaps elevators bothdown.oh its trimmed way.no little down lot.what now .something must bentcontrol horn push rod.no way tell Bob Hunt Ted must fly now pass Oh boy go.is handle set right.who knows. ease wing-over. whoops well least know handle isnt right .try adjust inverted flight.nothings right. wont turn outside. almost stuck time. disaster ster k God its over ever over After numbers made team fallen pinnacle ignominious 6th Place emotional wreck came close quitting competition ever have Excita tion proving itself aptly named Unfortunately Jekyll Hyde relation ship capricious lady quite over As learn through toying emotions abusing psyche would let know finality complete examination home uncov ered severe trauma control system includ ing control horn twisted about 200 force jammed controlswhich caused previously inexplicable condition both flaps elevators being down about 150 same time also broken solder joint December 1981 45 According 10 aumnor on-field dis assembly allows model stored compact shipping case Extra small pieces stored Windy Urtnowskis Sweeper van rough facsimile author peers around edge instrument panel canopy dyed dark blue fabric dye photos author between arms horn flap control horn Surgery performed affected areas after recuperative retrimming Devil Lady appeared ready another sault Walker Cup Come 1980 made last pilgrimage Ohio Wilmington Nats Early week things going well prepared well before having trouble adjusting two days travel sleep finals held second day would have spectator perhaps happier thout knowing After day practice two days qualifying rounds very nearly disastrous first round semi-finals finally health airplane act together same time place fourth year row 3rd place entering Walker Cup flyoff once again optimism creeping out onto sleeve could lose sincere Let tell morning finals dawned little cloudy blustery no rain appeared imminent conditions ideal certainly superior Lincolns gales crack dawn unflappable buddy Bill Fitzgerald holding Garner ST46 barked life first planned three warm-up flights prior start compe tition uncharacteristically Excitation came off little rich cool morning air went perfunctorily through slow sloppy pattern rnn out both fuel nervous jitters After completing pattern habitually three outside triangles clear lines landing now Excitations final perversity 46 Model Aviation Supertigre 46 prepared author vu uarner sports Adam lain muffler Note cooling air inlet louvers Heated air needs room escape mere must large airoutlets larger inlets Finish Sig dope lots elbow grease file inch-thick tail requires careful shaping ninge iine allowtull range movement Note hatch fuselage hinge line allow access elevator control horn detail points can make lot dnmerence wnen youre up top three Ruling pens dry transfers trick Slightly taperea nap isa constant 17% wing chord Lines details done Rapidograph technical pen available art stores Rignm wing features storage compartment forthe Jim WalkerTrophy unfortunately little bit premature FULL-SIZE PLANSAVAILABLE SEE PAGE 140 3/007/8 LEAOING EDGE ALL WACO VERY LIGHT BALSA I*4LESS NOTED GEALSYARLE-Ua LITE-PLY GEAR2 WIGS NOTE RIGHT WING 3/4 SHORTER TRAB LEFT tSAPPANTS WA-SPAR 3 RIGHT S LEFT FLAPS L IN LENGTH UFOOGOT FOTORE 4 FLAP STAGE LINE SWEPT FERWARA EACH SIDE 0--~ 050 K FOAM WINGUj KOHPBENN CAL HARSHMAPLE MOUNT -.-3 TSP FLITE BELL- & ______CRAMS MAY BEMAKE ROOT SAD TIP RIB TEMPLATEST WING PLANSLRATITOTED HEAVY LI1SEE TEST ROOT SECTION SOFT BALSA TIPS 571150 TPS NOTE FLAT SATE TO AVOIDTT THINSE HINGING FLAP PORN DO NOT STROSBACR HUHEXTEND HERN FARTHER INTOU - IV4AASA TV KLETT NOLANFLAP THAW SPAWN FOR THEUH3/RGSTAG H ELEVATOR BEARINGSASIE REAGANRIA V ORINS AVE FLAPSA' IE SR ETNALSA IVWMEASHINSA A1ARERIBS II OUTBOARD WINS TSPSCHAP BALSA SANGEA SUPPORTS 110 PLACES 9 GEE TEAT FOR MSV32 PLY--'VA FORTAWAS/3D PLA STAB Fl THRO F3 ARE VA PLY- FA TH FH AGE VA BALSA LATS AI/GHOST WIPE FFOFTF4EDERFTNAINO GEAR EV RIB SCRAGGALSAFILLETSV1 'I ENSHE GEFACT-V8SVEET BALSAWINO GAO SAIL 3/32/5 LOIWERAN 3/A s/S MAPLE ENOJIE MDGNTSTLRTLE DEVIATOR S BOTTOM BUCKS SHOALS BE KOLDED OR FLANKEDVA SOFT USE FOLLOWED BACKS ANLY F TRA UTE WOGE IS AVAILABLE GSA FILER ALOCAS COWL N TSP BLOCA• V32 PLY SLUWLEP MEDIUM GALSA HOLLOWEDcoHALVED LABORS V4 LLBASAIIANSVERTICAL STAB B S -ArII Fl- FTG -T"TI 42FTFII. 575 OZ SNIFLOW TANKIFUSELAGSIDEVI~ThWIPE NNUES H -CZiSG-3D BELLCAAIAA MNT BOLT 75 SPNSER-B FLOORVIG PLYAND NOTS-_ EHAXY Mt IAKRROAC WIREASASSOOPA VA VENTRAL FR VA FUSELAGE ENGINE ST AKCOALING ARCARVE WHEELRENTS TO SIDESS/A TOEWTEEL SR SIMIARSUTLETSTREAMLINE SHAPE FROM TWO LAMINATlANS GE I/A A-AC COWL HALO DOWNAND CR0 GE I/DT BALSA VAPLS CROSS MEMBERSDESIGNED B DRAWN BY TED FANCIER WING SJ NW 75 AREA BAA AS IN LENGTH 47WEIGHT BA-HA 02 TRACING BY StE DRIHARCO SAGAS 175 L5 BOUNCE STEELS 0 5 5 4 5 K WEXc/TA77ON showed itself last inverted corner triangles gave jerk through lines heart dropped stomach realized what happening wavered up down once twice wave good-bye moved handle ineffectually hoping wrong wasnt. controls failed went concrete quarter lap later scatter ing debris about feet very startled Bill Fitzgerald haps final rude gesture endless criticism performance through said let know Upon sober reflection became obvious methat Excitations perverse nature result demonic forces simply poor execution preparation part pilot final failurea broken pin heavy duty 4-40 Kwik-Linkwas almost surely caused extreme load placed line failure 10 months previously link should have replaced wasnt result outstanding Stunt ships last two years memory design proven performer highest levels competition worthy project anyone interested serious Stunt activity second Excitationprobably renamed superstitious reasonsis nearing completion shop written time however preparation execution will worthy Excitations aerobatic potential wont giving away again Construction Excitation designed early 1978 incorporates design characteristics tested proven Imitation MA September October1979 Specifically designs utilize higher normal aspect ratio wing blunt leading edges narrow chord nearly full-span flaps long tail moment moderate size low aspect ratio horizontal stab elevator Finally refined control system used consists longer length control horns larger 3-in diameter circu lar bellcrank moves smaller custom ary control surfaces Rather reiterate design logic features suggest reread Imitation article general hy potheses unchanged Excitation generally conventional con struction unusual feature very thick built up stabilizer elevator Ill deal some detail moment wing wish stab elevator available J K Custom Foam Wings 10261 Janice Lynn Cypress CA 90630 strongly urge builders especially just getting started competitive aerobatics take advantage expertise John Poynter Foam wings accomplished artisans such John others have done make over night Stunt success stories anything since George Aldrichs Nobler straight light what get cheap wings available variety degrees completion ultimate J K Master series come sheeted leading trailing edges installed shaped lite ply spar gear supports shown plans place also available gear supports few bucks less However supports cheap insurance since literally have destroy whole wing break loose extremely important ifyou cant fly smooth pavement time J K wings come complete assem bly instructions showing bellcrank installation method joining panels simple butt joint reinforced around lightweight glass cloth Hobbypoxy Formula II glue wing can course built up conven tional fashion using root tip templates shown plans employing appropriate spars planking cap strips historical D-tube construction method wing tips carved light balsa hollowed Add ermanent tip weight make provision dictated flight testing original carried about 3/4 1 oz final trim inboard tip should have adjustable leadout guides either shown plans own favorite system forward foam spar located during design interfere leadouts during adjustment safe side might want remove outer 6 foam spar inboard wing allow additional leadout movement wing flaps can either built up shown plans have some light rigid t could carved shape stress must rigid Flexible flaps create impossi ble flight trim problems Again allow swept-forward hinge line must either use two horns complex difficult build im possible tweak else use Werwage single horn method inserting horn plywood rib sandwich right root simple easy build tweakable basic fuselage box conventional con struction -in sheet sides 1/32 ply doub lers l x -in maple motor mounts long eron top allow attractive shaping bulkheads shown three parts very light blocks available especially aft CG use upper lower sections either planking 3/32 x ps molding 1/16 balsa sheet case cowling nose Continued page 132 December1981 47 IFYOU CAN FLYA FALCON 56. / L READY~ YOURE TO LEARN HOW TO FLY SCALE WITh OUR DYNAMIC TAIL DRAGGER TRAINER0 GEE BEE Sportster just another pretty airplane perfect model get tricycle landing gears tail draggers nothing true sport scale builds easier Sportster Average time build airframe 8-10 hours Plans & illustrated instructions quite simple follow Ask dealer show TAIL DRAGGER N. better known GEE BEE Sportster I 0The Tail Dragger Trainer copyrighted COVERITE J L 420 BABYLON ROAD HORSHAM PENNSYLVANIA 19044 U 5 RUBBER STRIP FAI RUBBERMade USA SIZES 1/4 3/16 1/8 3/32 1/16 1mm thick 042 BOXED 16 ounces rubber per box PRICE $1200 per box postpaid USA NEW PIRELLI SIZES 6mm 3mm 1mm thick PRICE $1800 per hankapprox 1/2 kg TIMERS KSB Fuel DT $1150 ea plus 10% UPS Sole US Distributors & World-wide Sales Send 25 1981 catalog FAIModel Supply ence brain Things start come gether wonder took long Another tack same subject Helicop ters about training gear pondered training gear longtime cricket has nice wide stance wanted something longer skids looked like belong Helicopter stead plumbers junk pile discovered polyethelene golf club separator tubes Take tube cut two Stuff one-half oblong styrofoam fishing bobber end use instant glue soda hold bobbers Cover tubes favorite contact Paper Make four clamps springy steel strapping clamp tubes main gear legs bobbers come grommets run inner Nyrod radio compartment through skid hold antenna skids cost about $150 pair make durable springy light easy clean look almost like pontoons allow fly taxi scoot sideways grass Finally have never seen another model chopper fly Are state regional national organizations devoted Are directories Helicopter pilots could contact need help turn can help based limited experience would willing eager get people started hobby Lastly Ive enclosed some pix Cricket Semper Humilis will notice training skids other minor mods landing gear tail boom Im against modifying just its own sake good reasons Ive found Cricket very durable stable re sponsive few minor mods Ive able fly day about two months maintenance being cleaning oiling says lot Cricket HB 25 PDP Futaba electronics especially knew what kind stresses have put through Thanks listening Tom Gibbons way Toms letter received August bad progress again rate progress individual thing Ive student solo Aeronca Champ five hours have another couldnt solo Cessna 150 fifteen yet satisfied first solo Glenn Willison have doing little flying nearby parking lot Glenn just began flying recently called some instruction trim-out Cricket think weve fun probably cant tell expres sions Um can just figure out two stick radios work Chesney Rt 9 Box 621-A Greensboro NC 27409 Excitation Fancher Continued page 4 block should carved light balsa blocks procedure build fuselage box tack-glue cowl turtle deck top bottom blocks place proceed shape whole works near completion Once shaped pop off blocks pin fuselage box upside down firmly large flat building board Cut out belly cradle carefully align install wing Use slow-drying glue make strong joint Measure remeasure measure again nothing critical performance tail built-up just like small wing Make 1/32 plywood templates root tip ribs Sandwich appropriate number 1/16 rib blanks between templates sand shape Glue ribs spars ensuring 90 degrees spar properly aligned Add scrap balsa supports hinges time drying cut skins very light 1/16 balsa sheet Two stab four elevator skins necessary First glue stab skins spars dry use small paint brush apply Titebond glue ribs top bottom Pin skins securely ribs ensure uniform adhesion dry use long sanding block make flush surface glue leading edge Cut slots favorite hinges Dump shavings out leading edge gap install shape ing edge complete elevators first cut hinge slots match stab apply sheeting both sides once Titebond Shape dry have used good wood sanitary construction techniques should now have 140 sq stab elevator weighs ito 1 oz Now time install tail right Wrong After building Stunt ships 25 years having tails end up crooked despite strenuous efforts finally broke code No matter carefully align stab attach top bottom blocks after tail glued place will invariably twist fuselage way another thereby destroying perfect alignment answer install controls down last minor bit pushrod adjustment Leave just little space fore aft move ment stab achieving exact neutral finally glue place Now proceed permanently attach turtledeck already attached bottom block Only after dry fuselage made rigid can 132 Model Aviation P0 Box 3957 Torrance CA 90510 fmally secure tail place sure will remain way major components assembled can get down detail work Cut shape rudder vertical stabilizer a Hinge rudder vertical stab soft wire rudder can adjusted Glue place conventional location top rear fuselage Cut ventral fin balsa Install tall wheel wire reinforcing medium weight glass cloth Formula II Hobb$poxy original canopy 040 butyrate plastic molded vacuum box However commercially-available canopies could employed hint back RC teardrop-shaped canopies lend themselves very well style degree cockpit detail choice used go whole hog seats seatbelts instru ments fire extinguishers etc Current trends leaning toward basics pilot head few instruments darkly tinted canopy simulated painted-on cockpit carved balsa blocks imaginative cockpit de tailing have personally seen employed high-ranking officer Atianta Stunt Con spiracy refuse give initials last name began Dixon Colonel Tom flew neatly-built Nobler untinted clear canopy through interested bystander could view beautifully painted black cockpit interior strip paper neatly glued floor typed two words Cockpit Detail comes innovation technological breakthroughs cant top rebels comes finish Ill defer masters Until can build plane fillets dont look like Mt Saint Helens wont pretend give advice Whatever type finish use make neat light thing know about paint heavy design have included standard pre drafting numbers-sheet detailing design para meters Excitation comparison Imitation numbers will plainly show Excitation nearly identical aerodynamically major difference highly tapered wing primarily appearance resulted swept-forward flap hinge line achieve 67% taper ratio straight hinge line would have resulted highiy swept leading edge order place aerodynamic center proper location fuselage forward leading edge would have needed very shorttoo short allow tank fit swept-forward flaps will work smoothly single horn carefully constructed per drawings important consideration arms enter flaps right root very strongjoint therefore mandatory make plywood sandwich shown ensure adequate strength sandwich epoxied directly root flap Final weight should low 50-oz range best performance Excitation 650 sq area small current standards Higher weights will still fly well power loading becomes marginal particularly vertical ma neuvers couple trimming suggestions longerarm control system provides adequate mechanical advantage over control-surface air loads under severe circumstances setup shown 3-in bellcrank 90-in pushrod arm bellerank 75-in control horn arms results sensitive system conven tional 4-in handle such Hot Rock encourage use Baron-style adjustable handle provide control sensitivity suits taste Adding nose weight airplane aerodynamically unstable done simply desensitize control feel results airplane trimmed less its full aerobatic potential Optimum center gravity CG location can determined through flight testing Move CG aft quarter inch time observe flight certain point ship will go effortlessly around corner hard flat no tendency hunt after controls neutral ized far aft position will primarily determiend K stability factor design such Excitation long tail moment and/or large tail area will accept further aft CG will design short and/or small area tail hard flat corner achieved ship will probably too sensitive tastedont add nose weighL next important indication proper CG manner ship glides engine quits CG too far aft engine quits ship will immediately go light lines nose up slightly Smooth approaches will difficult may become impossible possibly hazardous upwind such case add nose weight until control positive Unless have very small tall thus adequate K factor will achieve two goals within fraction inch same CG location youve found proper CG adjust handle line spacing fine-tune sensitivity taste Once have achieved combi nation will have airplane com fortable fly yet aerodynamically trimmed its maximum potential large reserve available merely opening up line can R/C dealer 0MODELMANIA TO OUR CLIL COTITTOS ESE 44 otOURLYN S MODEL TA- F IPT C Wt4800CLSN NY 24 RETNEFOCI 144 3 FROM STATEN ISLANE TO F El F 0440 EAST CONE bLANC RAE F IT N 011100 FLU TO OPEN MOMTE4EC 15 5' 5SF F TAMPTIT Too OATI2TS SPECIALS GOOF LATIL SN 450 SR OP -C NL4I MR44UFATORERS NAME 9ISOERAPT SYSTEMS WV AM 30250EP7C P41 7253 14 151 oEP 0 593SEPSO AM 72 1401511 SEPT00 3045EPSO AM 72 22 SEP00 3950P2K 41 72 21K SEPT00 3960EPOK 41 22 4 244 oEPSO 40975EPOK N 72 3 21 [EPTO 398$EPEOC ANY AM 7 3990KPR5C OF' AM 7 48804PC1411-15114 4010KPSIO450 GAblE FOR SPECIAL PRICES AOl CETRI SSOEP0I SIGARTURE SERIES ESTS P0 mAP CO P41 4030TORPLITE oEALINO 10010 4820I4EOCON MI! CEO OOc 040AICREL AER PIATCF TOO t 8 03 FINIoAI RE II OT PECIET ES TOPFL1TE OQACA STEPOLL10 0 POL ITT AAENC MO lIE CL P 41114 4 POLL 408$PICRO 8 PEAR P oICC EoT 19 951 OFLITARA PGE4 2 ER 0 FOOL PATE2 05P04 EAGLE III 504-IOOEPLE POPTEC 1588101 -01CR 4A0 0 TOOC 41OCtOREEG GE14TLC LAO So AIRTPON4C OLOPI 11 1 0 40 ORLIME REELALENET RONOT 0 FL 045 008 CORI 3440 ThOPPIFIO LW ESE DSPC OTES INvLLICC N oCLI AFIRE lEO E C CL ACE OROEP RECIPE [C 10 FOP C SEN ALL ORCECSINOJIRC ST L44AIIA F 0 800 470 P2T4,440 ROES yrIlL PEICES OLBOC 3 T 084 COK- 403 7 rPUP004430 L4l44OoL4PPE44T PILl PEE L 4 44136 SECEC0 Ci 0 0 bIlE Oi 1044 StEARS NO COO ALL PRICE IIILL ICE 00 ,4l4 fl4 1* T NAIlER 045 lIT TEl oNC.CoO, I N MT BALK TO TWAL C COF'C hU RRAI4K 8 4 513005L0C OF oW 00 P114 44100 1500550 010 00 00 ST ER 7808 ACE 01 44A F 1 S4C ZR 800 8FF C:TEA 04 00OIl F TOTAL FOP TAIPPIF4U OLL42141' IENC0SALES ARC FIlIAL ES! SIT IT L4IAL NECK TO CLEAR 44 AC bElT 440 10 ALES TAOENE A0E FF AL I4S TOE CROP ANT3 FE OUKIC PEOLIIEC RCT December1981 133 NOW ThERES PRIMER RECOMMENDED FOR COVEPITE New Primex solves nagging problem Now can sure first time getting great adhesion Now remove masking tape paint ioh will stay down Primex ultra-light smooth very quick dry Easy apply brush extremely sandable Primex now primer use Coverite ISuper Permagloss & Silkspun equally great wood tissue silk nylon dacron Look bright yellow 9CEVERITEJ L 420 BABYLON ROAD HORSHAM PENNSYLVANIA 19044 U S Year Limited nty Pre-Dnhled Props Avail Ask About Custom- Built KIORITZ Engines Deep Fins Optimum Cooling 21/4 Flywheel Small Magneto 1 5/am Six Bolt Aluminum Hub Carb Needles &Throttle Accessible Engine Running Godfrey Points Sealed Rear Housing $19995 pay shIp pre-paid orders Mufflers Now Availablel DEALERS WELCOME 242 cc 397ccSPECIFICATIONS 32HP 8000 rpmWoibto Pomp CarbBall Bearmngs Crank ght B b3 Riog PistonCaged Rollers Rod ond Foton Finn GIBBS HOBBY & RESEARCH 6195 HIlifleld St NW N CANTON OHIO 44720 Phone 21 6 499-8854 after 600 PM C ELECTRONIC SERVICENTER FACTORY AUTHORIZED WARRANTY SERVICE FOR KRAFT over 35 other manufacturers Tired wasting money radio service os per formance too important jeopardized inexperien ced uncaring technician company just person re pairs RC equipment RCer cares about radio ME 24 HOUR SERVICE NEAL WARREN 3 South 21St Street erPh iladelphia PA 19103 Tel 215 564-0800 24 HOUR SERVICE Mon-Fri 9AM-53OPM AO Wed night till 8PM Sat 9AM Noon spacing important capability flying high winds An airplane aerodynamically detuned through addition nose weight will have no reserve turn available conditions demand conclusion Excitation merely another Nobler new cosmetics truly better mousetrap designed fill mans demands capability adapt variety flying styles Simply because has way performance available ever called win todays Precision Aerobatics arena properly trimmed Excitation can adjusted suit Precision Aerobatics flier about CL Scale/Byron Continued page 49 East Coast am sure several people familiar aircraft also excel lent photographer pictures reflect An out standing aircraft Profile Publications has come atten tion Profile Publications being put back print again outstanding modeling assistance Scale modelers am looking forward acquiring entire series now have about 70 something Scale modeler should have because value 5-views come publication probably will expensive past will worth penny serious Scale modeler historian Look advertised upcoming issues of model magazines Dont let slide through hands like once did Richard P Byron 2506 So 16 1st Circle Omaha NE 68130 CL Racing/Lee Continued page 50 ing Racing headed us has own opinion since have pencil hand heres Ther will probably always core avid AMA Racing enthusiasts likelihood ones will always found Nats sad part year after year hard-nosed group seems little smaller year before isnt new infusion interest provide numbers used exist have Racers gone What needs done get interest back lot has written about various Racing events types events column other publications generally accepted term inology coined Jim Thomerson True Sport TS Just Another Racing JAR event Basically TS event extremely specific its rules effort allow sport flier use sport flying equipment competitive TS event should capable being flown equipment available local hobby shop dominated nonavailable equipment various TS events have heard recently generally specify engine brand model plane configuration etc JAR event usually limited version normal AMA Racing event Rules added keep performance level down general events leave lot room progress events tend follow same curve popularity AMA events have followed initial burst popularity being followed decline interest rules 134 Model Aviation K IORIT ENGINES BY GIBBS HOBBY & RESEARCH Original Developer Factory Trained Authorized Master Service Dealer r7