NO OCR TEXT NO OCR TEXT wood structure D-tube leading edge plywood Rudder elevator fitted trim tabs completed airframe fabric covered fuselage fitted single wheel nose skid TG-3s equipped radio navigation lights first TG-3s painted yellow over blue trim flash fuselage few TG-3s blue fuselages yellow wing tail surfaces National insignia applied both surfaces both wings consisting blue circle white star red ball center star rudder markings consisted vertical dark blue band forward portion 13 hori zontal red-and-white alternating stripes red first underside wings lettered U S right ARMY left middle 1942 overall color changed yellow silver Tests 1941 revealed yellow color reducing fabric life Although some photos silver gliders meatball insignia candy-striped tail deleted June 1942 feared markings could onfused Japanese Rising Sun same time new national insignia meatball added rear fuselage sides November 1942 US Army letter ing wing underside deleted brief times 1943 national insignia outlined red yellow unlikely gliders marked Later wing insignia applied upper right lower left wings horizontal white bars blue borders applied side national insignia As changes came late 1943 glider training project disbanded November very few photos exist configurations Color markings information obtained article June 1979 Bungee Cord Paint TG Bob Storek Bungee Cord fine newsletter put out Vintage Sailplane Association 6053 25th Rd N Arlington VA 22207 Any model builder interested old gliders should consider joining organization Back didnt use scale grass must real thing Scenes XTG-3 flight test program Wright Field 1942 look cars background careful look paint schemes reveals photos least two different airplanes onlythree XTG-3s built models paint scheme same lower picture issues Bungee Cord can obtained VSA Bob Storck VSAs archivist can provide VSA members information photos TG-series gliders end war surviving TG-3s sold surplus After war TG-3 credited setting holding US duration record extensive period number TG 3s still flying today Air Force Museum gathering information TG-3s 1975 restoration project hopefully TG-3 will some day display Also member Vintage Sailplane Association restoring TG-3 authentic training paint job TG-3 natural Stand-Off Sport Scale Its slab-sided stringered fuselage easy duplicate squared-off empen nage ship has no wing fillets struts worry about canopy simply built out flat sheets biggest advantage TG-3 modeling November 1980 1 3 Flight shots model See much improvementthere illusion reality putcrewfigures cockpit Jackdeparted scale wing dihedralhe put slight amount polyhedral starting point sharp taper-break wing planform hardly noticeable photos Pictures Dan Pruss John Czeszak men olan vviaon snows prelerreu meingo oi naming toe moueu ior iaunch must also keep tension thetow bridles tow ring will slip off either two wing-mounted towhooks right glider climbs out tow rope Note retrieval chute Jack has never tow problem some 200 flights using twin-bridle system wing geometry wing planform full-size prototype close used average sport RC glider TG-3 has aspect ratio 123-to-i relatively large dihedral 4 degrees per wing Also wing has constant-chord main panels moderate taper tip panels About thing missing polyhedral features add up RC model strong wing plenty area good stability excellent tow characteristics no nasty tip stalls TG-3 Construction Before beginning like cut out wing ribs fuselage bulkheads Make template fuselage keel Out 015 clearplastic sheetthis way dont have cut up plans Using template cut out keel Lite Ply After plywood wing ribs cut out holes drilled tubes use wing root rib template drill holes fuselage plywood wing mounting plates Now good time make up some leading edge material out spruce Dremels new table saw fine blade works well dont have access table saw taper spruce strips razor plane correct angle leading edges band saw can also used shape leading edge stock Wing Construction borrowed Aquila like build tip panels first complete plywood dihedral braces sure build washout very important easy-tofly glider Now block up tip panel per plans build main panel onto tip panel used aliphatic resin construction exception wing tubes plywood wing webs use slow-setting epoxy also use slowsetting epoxy glue spruce filler between wing tubes spar makes strong wing gives adequate wood attach tow hooks Also add a webs between end wing tubes next wing rib order 1 4 Model Aviation Nose ribs added duplicate appearance OS prototypes curved steel tube fuselage structure Like keel plywood An overall view nose structure wheel well plywood wing mounting plate show up well aft fuselage showing pushrod exit stabilizer mounting bolts closer lOOK lower tuselage construction Neat compact radio installation Servos rudder elevator spoilers center Antenna housed outer Nyrod tube epoxied side ne ar om tne spruce strip located Just below oetween tne pushrods screw eye used guide spoiler actuation lines turning 90 attach servo ILAI N /8 BALSA FLOOR /8 SIG LITE-PLY KEEL 1 & K /6 BALSA VERTICAL WEB -NOSE TO TAIL 1/8 PLYWXID FLOOR AND FORMERS BLOCKS AND HOOKS FOR3/16K 3/B316 DOWELBOWS LAMINATED JJBLE RUBBER BANDSSPRUCE STAYSROLL BARS ALL /8 X 3/4 SPRL2~ RAILS TO F-3 NOSE FORMERS 12 22 I/B SIG LITE-PLY ONE PIECE KEEL SEE ABOVE 1/16 \BALSA I/B BALSA F I/4SO\\\\ CROSS GR17~ PLYWOOD WEBS SPRUCE FRONTAND BACK Fl I/B PLYI/BPLYWOOTOTHIS BAY FORMERFORMERS RUBBER I/B X 3/4 SPRUCE LAMINATED FOR IDBLOCKS3 1/2 DU-BRO WHEEL ON MUSIC W BOLTS THRJ BLOCK FB 110 4 ALL INTO T -NUTSI/U SIG LITE PLY 1/4 50 SPRUCE STRINGERS NYLON TUBE DU-BRO 2-56 SOCIETSET THRU V2 mWELS 3/8 BALSA WEB ON I/2BALSA DECI F 3 I/B PLYWOCO 3A6 SO SPRUCE BENTTO KEEL 3/B 50BALSA 3/B K 1/2 50 BALSA 3/B BALSA SHEET VB SPRUCE ______________ I/B PLYWOOD LAMINATED 10 I/16PLYWOCO FOR WING MOUNT tI \ 090 MUSIC WIRE 3/32 BALSA STRUTS ON 3/32 WEBS 3/B K 1/2 BALSATIPS I/B X 1/4 SPRUCETE /4K 3/8 BALSA ALL RIBS 3/BX 1/2 RUcOER BASE I/BX 1/4 T E KRAFT SHORT HORN 3/BK 1/2 BALSATIPS SU-PR-UNE CLEVISlO HORN 3A6 SO SPRUCE OUlSIDE3/BBALSA NDSETOTAILIIOPONIYINSIDEALL FRAMING 1/4 K /2 BALSA LAMINATED KEEL 1/16K I/2SHrTETOPAND BOTlOM RODS INTO 250 10 BRASS FRONTONE IMBED IN SPRJCE 3/d K I/i BALSA SPOILER F84 DIAGONAL BRACE SAME AS SPAR 3/32 WEBS I/B PLYWOOD JOINER IN LE I/B PLYWOOD JONER PLATE FRONT AND BACK 1/16 BALSA WEBS FRONT AND BACK OF SRAR SOUD BALSA TIPS 1A6 K I/4CAP STRIrS TOPAND BOTIi I/8PLYwOOD TIP SKID 1/16 BALSA ALL RIBS1/16 SHEET lOPAND rroM L E 3A6 K 3/B SPRUCE SPAR 1OPANDBO1TOM I/4X 3/BBALSA LEDGE SOJCE 4x* SPRucR SECTION A-A1 RYPIcAL CROSSECTION SPORT PILOT SHOWN / F F OP MEHIR RROM* FLY FT2 NOTCUES FOR CO FORMER PRIM RPR OP BOTTOM MANE BOTH FROMj PAY BB3 DWBT P50 0 j 00 STROLL Sq SPRIHCA 4RQ SPRUCE RE5R TRIM TO FIT* PLY CANOPY PLODS A.PRO M MAST ER 50FFRRT USE IS ROTH CANOPY I-SEOMEOTS /jFTCFT 5 c-I F-ri WSRLUMINUM 1-- -1Fa ---7--F0FS 0 RBRR-TRIM TO PITB PRO M MASTER OUTLINEFB4 FBI RHEEBE FBS F3 KI restrain wing wires tubes cheated added small amount polydihedral taper break order get glider turn properly ailerons polydihedral could eliminated func tioning ailerons added would suggest coup ling rudder ailerons use about 30 degrees rudder throw small aileron deflection best results Another possibility try would coupled spoilers rudder together scale dihedral right turn would use right rudder right spoiler have tried other gliders works well Rub baby oil wing plan make paper transparent turn over plan build second half wing Tail surfaces much needs said about tail surfaces construction rather simple ItTs good idea make horizontal stabilizer removable fuselage transportation storage purposes cut taper rudder elevator ribs razor saw Cut little oversize dress down sanding block Use sheet metal screws attach control horns plywood mounts Fuselage Lay down three main longerons over plans pin place Allow bottom longeron extend rear former F3 Right left bottom longerons will later pulled together meet rear fuselage keel Add 1/16 balsa webbing longeron shown plans After glue dries remove plans mark position sides Fl F2 F3 Now add spruce strips inside fuselage sides leaving gaps formers Turn plans over rub baby oil build other side Glue formers Fl F2 F3 dry pull tail together glue Add bottom crossgrain sheeting Fl F3 Pull bottom longerons together meet rear keel Add cross-grain sheeting Add cross braces turtle-deck former position maintain correct width Add spruce strips bottom sheeting between Fl F3 front ofFi key keel Next glue turtledeck formers stringers Add stab mounting structure epoxying blind nuts mounting Glue keel former FTI Glue 1/16 balsa wheel-well followed i plywood wheel sides Add sub-bulkheads keel associated stringers Now add spruce tail post Add stringer rear keel tailpost Next add three vertical grained braces between bottom rear longeron box structure Fit add plywood plates wing mounting Make sure right left plates lined up accurately fore aft Now epoxy wing support tubes fuselage wings wires 1 6 Model Aviation IIcANOPYKuPOR-TII jJ9REIoIRsO ROD RUCE STRIPS sq LAMINATE FUY ANDjPLT FNT FORMER REQUIRED jRIBLITEFLY MARE ALL TR PORMERS EROM * SE * HII LORSTOS OP SPRUCE IRS O DUIRE SECTION B-B r T FULL-SIZE PLANS AVAILABLE . SEE PAGE 128 ICOECISEE F5FI7 MARSYUBA fl5 PROM F FTR 3 444 BALSA 00*005 SYR REESE MARS ALL C SULRI4EAOS FREESPLY SPRUCE j BALSA IBEPY FT7IOUR CORN Fre FT9 c C z r PUSASBOR Err 00100 IS BUILTQZE~ ly 30CM 0051St OSQBSC W hp 30GB WESt NERE hp 35CTION C-C PLY MOUNTING SIJPBUPS PROBUCTS 010015 ASSOUBLY rORO$OUEIO OCR j PLY place ensure proper alignment Glue balsa bottom wing tubes floor fuse Next add 12 Sig Lite-Ply nose ribs trim fit individually wheel added until fuselage covered After covering cut out wheel-well cut small hole covering order insert brass tubing wheel axle Place wheel well insert axle using dab epoxy keep axle backing out small covering patch over axle access hole completes step skid laminated two strips spruce Use slow-setting epoxy glue Mold curve aid jig made finishing nails nailed board Canopy Make a forms mold canopy bows around Laminate two strips 1/16 X spruce strips canopy bows Use slow-setting epoxy allow cure 24 hours Make November 1980 1 7 * BALSA * 044 SPRUCE 44 BALSA OSNOTES PREL OUTLINE * SI 1BALSA WEB Rear view spoilers shows typical Aquilatype linkage fine spring undertension return spoilers closed position VSET fl04405000PO ippP40 Ut W V7 -- 4-4 ri SMUtS 3-pPOiYUtPPOU F -I II-r76 aK F IIi ipo SECTION 0-0 o o - 3 0 44 05047 70 NOtE CflNG PIES t S AEt MOOS PROM PLO SECTION E-E SECTION F-F 10 II 4 S IT I0 POLYHEDRAL DOUBLER U RSI4IJIREO ft SALA Si plywood canopy base fore aft sections Glue forming bottom bases key canopy assembly accurately fuselage Epoxy instrument panel rear bulkhead canopy bases Notch canopy bases accept bows Epoxy bows base after trimming required length Epoxy hardwood dowels simulate roll-over structure full-size aircraft canopies left natural color aluminum Paint canopy frames silver epoxy after filling thinnedout Stuff Epoxy paint gives superior adhesion important servo mounting tape used attach pilots canopy base Add instru ment panel detailing desired point cluster instruments instructor riding back seat located roll-over cage Cut out canopy sections heavy sheet acetate rear canopy piece front canopy three pieces attached plastic canopy base 3M clear plastic tape Tape canopy side base rolling over bows tape other side base Wrap approximately -in tape around bottom canopy base ensure good adhesion front canopy section attach rear acetate piece first followed center section front section last way slipstream cant get under canopy sections during flight might otherwise rip off section Covering suggest using super MonoKote plans three-view drawing depict all-silver version easy route just cover air frame silver MonoKote cut tail numbers out black trim MonoKote Insignia also can made out blue white trim MonoKote go earlier yellow color scheme additional markings can made trim MonoKote Spray paint light blue fuselage flash epoxy paint after cleaning area painted thinner Trim tape used outline trim tabs ailerons dive brakes bottom wings Flying Now come fun part Dont worry about weight too much TG-3 weighed 7 pounds ready-to-fly plans show fore aft center-of-gravity CG posi tions Use forward position initial test flights continue using forward CG until feel comfortable launch have confidence glider As soon possible move aft center-of-gravity position glider will thermal better configuration aft CG TG-3 does beautiful spins have enough control surface movement like use spin lose altitude after working up max ship could just spiral down use spoilers dive TG-3 18 Model Aviation F I1ff FULL-SIZE PLANS AVAILABLE . SEE PAGE 128 YOP4 0tTOM 00150 000570405BALSA La TOP 4 BOrTOTA 101SPOOLS5000 TOP * BOTTOM i III 77- r V4IiI II _-t IIIII II IIIii Ii IIII I IIII IIII IIII III IIII IIIiiIS q LbIlls __nr ~iI 1OOftt flAW ASA 700 4001700 SOIM TOO TO JASHOIJT PIN DOWN $ 000041 INNER S a-ITO PLY 66 Ni 0007 BALSA 01005 cY SECTION GG 0005 010 twOtOi TIP OSlO 4 010 10 TUBE r t0i AT 040 5 40104046 501146 MOTIONS _ 4 _________ NTAL STABILIZ&R 0 THROB VIEW D353N1146 SCI4WEIZ&R rss SHEET ca looks neat spinning down few comments about launch technique First make up towing bridle approximately three feet long like use heavier line used winch Tie tow ring end two 3-ft lengths line Tie remaining end two lines large snap swiveL Using atowingbridle wing-mounted tow hooks have never towing problem approximately 200 flights first flight get someone assist launching preferably person has flown large glider such Sailair Astro Jeff Aquila XL will know much line tension required launch Let helper launch airplane concentrate operating winch flying Because fuselage size airfoil used TG-3 has lot drag lift-overdrag ratio nothing brag about Also sink rate higher average RC sport glider Due higher drag TG-3 does like tight circles thermalling keep circles lift bit larger normal added drag has advantage makes easy landings talk about drag might get impression TG-3 real turkey isnt lift TG-3 will go up fact early summer 1979 two flights over hour duration flat-land flying site help thermal sniffer end summer installed thermal sniffer built little larger wing order make altitude attempt National AMA RC Soaring Record FAI World Record Replogle barograph rode back seat Allup weight 10 pounds 14 ounces paperwork accomplished record try over Labor Day weekend Saturday Sunday weather did cooperate Monday better light winds scattered fair-weather cumulus clouds Aviation Weathefs forecast called cloud base 2000 3000 feet morning moving up 3000 4000 feet later day hoping cloud base 5000 6000 feet During late morning early afternoon number flights made reached 2000 feet Mound 200 pm finally got TG-3 up 3400 feet point TG-3 entered large cumulus let old bird fly cloud few seconds deployed spoilers down mm few seconds TG-3 reappeared driving out bottom cloud Conditions didnt get better day 3400 feet highest altitude recorded wasnt enough FAI World Record since AMA Continued page 108 November 198019 SIMIlAR WINS 1St PLACEPATTERN PRE-NOVICE 1979 WINTER NATS SIMIlAR NEW . SI MI TAR SIMIlAR SIMITAR SPORT SIMIlAR l9-40PowerS0lnehSpan Standard Kit Includes SIMITARPly Wing Sheeting Fuselage SIMIlARFoam Coress SIMITARGear Formed Sliding Tray SI MI TARFull Site Plans SIMITAR WINS 1st PLACENORTHROP FLYING WING CONTEST 1979 High Quality 1000 Cutton $ 95 Multi-color Silkscreen6 Sites 5 M L & XL Eleck Rider Yellow Plus $100 Astron Light Blue Shipping Similar 540 Tan Charge SFF YOUR DEALER OR ORDER ROM BILL EVANS 20825K ROSCOE BLVD CANOGA PARK CA 91306 / TEL 213 344-6391 OR 709-0894 tougher proposition achieve ment stability twin pushers day Charlie put dihedral canard surface added small vertical fin atop flew arrow straight Later upset pusher world winning big meets sensational tractors Incidentally timed early gas meet Tecterboro NJ 1933 34 Leo Weiss Frank Tlush Frank Ehling Charlie Grant Joe Kovel among perhaps dozen entrantsthe sky filled twinpusher rubber jobs climbed like javelins got time lone rubber modeler diamond fuselage tractor turned winning flight four-plus Hank Struck Charlie equally prominent full-scale aviation prolific inventor revolutionary designeryoull find him some history books about air racing devoted chapter him holds valuable patents always fighter won law suit against Martin 202 airlinerthey paid royalty hired him settlement deltas possi bly before world-famous Dr Lippisch ever thought segmented flap Charlies idea Nobody able solve riddle spinning flap Charlie has burnt enough keep secret him self answer lies mechanics 1910 Charlie jumping off roof tiny hang gliderhe weighed 100 pounds sopping wetand sailing out over slop ing meadow hundreds feet first air plane Vermont thinks tried first bike hit downhill bump un ceremoniously airborne about 35 feet ashes over teakettle picked gravel out empennage three weeks biggie model plane manu facturing before 1920 salesman Ritchie Wertz Dayton designs sold over $300000 yearly New York buyers company produced 1000 Minute Men day limited capacity propcarv ing machine invented employed 50 people shop moving production line little cars riding rails also mentioned cable initial small parts right through packaging stopwatched process Around 1920 learned reduce 50% weight increase painting 5% kits genuine flying machinesl milled cambered wings long balsa planks slicing off like bologna refrigeration room il chilled wood dipped wings diluted fish glue varnished finally painted yellow gook barely penetrated wood also own company Grant late Twenties threw Kinksbury Toys depression victim produce 2000 Silver Arrows day cambered silver-colored wings aluminum ribs hold shape blue twin sticks fuselage small aluminum U-shaped pieces re taining sticks allowing rubber pass 1927 flew 650 feet could buy over America secret sheep dip bluedyed casein glue Its weight increase 2% MAN saw fabled rubber de signs fine articles aerodynamics books now collectors items Charlie design team remarkable Dayton-Wright Racer soon after 1920 responsible both leading edge slats wing flaps60 years ago retract able gear Today can get Peanut kit Hank Struck Jetco Charlie driven illustri ous ancestors mad inventors great grandfather designed Governor DeWitt Clinton John Bull locomotives grand father installed propulsive machinery Monitor Charlie now has revolutionary windmill could affect energy pic turehis light years ahead modern ized Dutch windmills testy us says AMA doesnt something soon about kids hell start own organization loves boys airplane modeling boys camp mid-Twenties late Howard McEntee instructor people like 1935 Wakefield-winner Gordon Light Joe Kovel vacationers keep telling supercharged octegenarian age 68 cant join crusade write monumental man care AMA Head quarters challenge wits Hes demon phone Charlies new book Gateway Aero Science has over 300 pages loaded fine drawings great flying models Distrib uted Poiks available through Supply Service AMA HQ has already writ ten another prints markets things out pocket first class Fittingly initials CG CG Schweizer TG-3/Hiner Continued page 19 National Soaring Records zero AMA record set proves TG-3 will thermal stable can carry full-size baro graph TG-3 easy-to-build easy-to-fly Stand-Off Sport Scale Sailplane bit different average Scale job Because rules use compromised scale accuracy somewhat favor better flying characteristics have aware stopwatch landing tape fly Sport Scale Gliders fact 1979 LSF Tournament Scale birds flew duration also flew speed/distance task TG-3 real fun like building fuselage stringers give some considera tion have problems building TG 3 drop line 2213 Prentice Creek Apt 104 Downers Grove IL 60515 Iwili try help References Soaring May-June 1944 TG-3A Ernest Schweizer AIR TRAILS Spring t 979 Glider Factory Technical Order No 09-3OAB-2 Erection Main108 Model Aviation NEWT-SHIRTS BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 2 oz HOT STUFF XXc LINEE EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec 1/2 OZ jV HOT STUFF GAP FILLING HIGH VISCOSITY-TIMED BOND 10 25 sec Use like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD %ad9t Ca P 0 BOX 836 SIMI CA 93062 522-0062 tenance Instructions TG-3A Glider Schweizer Aircraft Corporation Drawings National Archives Photos Documentary Photography black white 1361 ST Photo Sqd 1221 South Fern St Arlington VA 22202 Omcial USAF photos sale write price list ordering instructions 21298AC Front View XTG-3 21294ACTow Plane XTG-3 Background 21157AC Side View XTG-3 21296ACXTG-3 Takeoff Bungee Cor4 June 1979 Paint TG hy Bob Storck Color Aircraft Yellow Blue Color Insignia White Red Blue Black F0R MRGUSI ent meantime have System Alert refuses buzz turn transmitter off give fix try System FS NODupont NoAlert works time works properly ith systems mod forget 15123 98013about 17875Not critical 111361865H48 15044 17038Not critical Radio Technique/Myers Continued page 23 quick check oscilloscope showed exactly what happening wouldnt need oscilloscope see 6 volt DC meter lOOK resistance would work well Just connect between negative lead black wire signal lead orange wire turn receiver turn transmitter off few times Sometimes voltmeter will read positive volts some times zero transmitter off point may thinking its simple didnt start measure ment cut out other stuff Two reasons 1 didnt think time 2 needed System Alert wiring diagram wanted make worthwhile changes Knowing problem solution ob vious added 001 mfd capacitor series System Alert green wire Vs watt 1 megohm resistor base input transistor ground Ive supplied sketch too capacitor passes pulses blocks DC resistor insures input transistor turns off So buzzer must sound optimum values just values worked Ed says will make change production may turn out differAnother fix some people may want know about following frame-time resistor early Ace RC Silver Seven trans mitter encoders 270K R2 just above NE5044 has changed production 330 K reason change increase frame time l8ms adequate 2 3 4 5-channel receivers 22ms necessary 6- 7-channel re ceivers Paul Edmunds Pauls Re Omaha NE discovered need change fix worked out Paul Holsten Ace RC Mr Edmunds good enough write tell about Tom Runge president Ace good enough write tell change has made production have early models either swap 33OKforthe27OKordowhatldidIputaS6K resistor series 270K provisions shorting out again should need arise As happens sons 4-channel Cannon system uses 16 millisecond frame transmitter receiver servos want fly flight packs Ill need 18 ms option Mismatched frame times can lead poor servo performance Its much easier retime transmitter go inside receiver servo re-time match transmitter beauty S7 its easy make whatever change need Frame time wondering what Im talking about time required complete set control pulses plus required reset pulse Theres sketch illus trating elsewhere column Since control pulse per channel U BOX 3957TORRANCE CA 90510 frame time also period required repe titions control pulse individual servo servo designed stretch its control pulse over full frame time transmitter designed work fore given servo may work poorly another manufacturers transmitter since new transmitter will have time either longer causing servo somewhat sloppy about staying its rest position shorter causing servo act jittery Figur ing out what frame time servo wants can subject another whole column now play mix-and-match various servos suspect frame-time problems dont ploy well together Nats takes over December issue no Radio Technique until next year See George M Myers 70 Froehlich Farm Road Hicks vOle NY 11801 Scale WC/Wischers Continued page 28 Thats international cooperation its finest third Canadian team member Karel Solnicka also radio problems round two flight fortunate Piper Twin Comanche splattered itself vertically onto runway completely destroyed static scoring F4C Precision Scale completed models flown third flying day gusty turbulent windswith threat rain contrasted lack wind enjoyed Standoff fliers previous two days Strong crosswinds encountered times three days F4C flights Seven 20 entries made no flights damaged during takeoff Highest flight score day made Frank Knowles Tiger Moth November 1980 109 9 HL GLIDERS flfl 3 SATELLITE KITS EEE 17OLDTIMEGAS Send 25 5 RUBBER 3 NORDIC 1980 catalog 9 COMPETIT ION GAS FUEL DTTIMERS -$1075 FAI Model Supply
Edition: Model Aviation - 1980/11
Page Numbers: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 108, 109
NO OCR TEXT NO OCR TEXT wood structure D-tube leading edge plywood Rudder elevator fitted trim tabs completed airframe fabric covered fuselage fitted single wheel nose skid TG-3s equipped radio navigation lights first TG-3s painted yellow over blue trim flash fuselage few TG-3s blue fuselages yellow wing tail surfaces National insignia applied both surfaces both wings consisting blue circle white star red ball center star rudder markings consisted vertical dark blue band forward portion 13 hori zontal red-and-white alternating stripes red first underside wings lettered U S right ARMY left middle 1942 overall color changed yellow silver Tests 1941 revealed yellow color reducing fabric life Although some photos silver gliders meatball insignia candy-striped tail deleted June 1942 feared markings could onfused Japanese Rising Sun same time new national insignia meatball added rear fuselage sides November 1942 US Army letter ing wing underside deleted brief times 1943 national insignia outlined red yellow unlikely gliders marked Later wing insignia applied upper right lower left wings horizontal white bars blue borders applied side national insignia As changes came late 1943 glider training project disbanded November very few photos exist configurations Color markings information obtained article June 1979 Bungee Cord Paint TG Bob Storek Bungee Cord fine newsletter put out Vintage Sailplane Association 6053 25th Rd N Arlington VA 22207 Any model builder interested old gliders should consider joining organization Back didnt use scale grass must real thing Scenes XTG-3 flight test program Wright Field 1942 look cars background careful look paint schemes reveals photos least two different airplanes onlythree XTG-3s built models paint scheme same lower picture issues Bungee Cord can obtained VSA Bob Storck VSAs archivist can provide VSA members information photos TG-series gliders end war surviving TG-3s sold surplus After war TG-3 credited setting holding US duration record extensive period number TG 3s still flying today Air Force Museum gathering information TG-3s 1975 restoration project hopefully TG-3 will some day display Also member Vintage Sailplane Association restoring TG-3 authentic training paint job TG-3 natural Stand-Off Sport Scale Its slab-sided stringered fuselage easy duplicate squared-off empen nage ship has no wing fillets struts worry about canopy simply built out flat sheets biggest advantage TG-3 modeling November 1980 1 3 Flight shots model See much improvementthere illusion reality putcrewfigures cockpit Jackdeparted scale wing dihedralhe put slight amount polyhedral starting point sharp taper-break wing planform hardly noticeable photos Pictures Dan Pruss John Czeszak men olan vviaon snows prelerreu meingo oi naming toe moueu ior iaunch must also keep tension thetow bridles tow ring will slip off either two wing-mounted towhooks right glider climbs out tow rope Note retrieval chute Jack has never tow problem some 200 flights using twin-bridle system wing geometry wing planform full-size prototype close used average sport RC glider TG-3 has aspect ratio 123-to-i relatively large dihedral 4 degrees per wing Also wing has constant-chord main panels moderate taper tip panels About thing missing polyhedral features add up RC model strong wing plenty area good stability excellent tow characteristics no nasty tip stalls TG-3 Construction Before beginning like cut out wing ribs fuselage bulkheads Make template fuselage keel Out 015 clearplastic sheetthis way dont have cut up plans Using template cut out keel Lite Ply After plywood wing ribs cut out holes drilled tubes use wing root rib template drill holes fuselage plywood wing mounting plates Now good time make up some leading edge material out spruce Dremels new table saw fine blade works well dont have access table saw taper spruce strips razor plane correct angle leading edges band saw can also used shape leading edge stock Wing Construction borrowed Aquila like build tip panels first complete plywood dihedral braces sure build washout very important easy-tofly glider Now block up tip panel per plans build main panel onto tip panel used aliphatic resin construction exception wing tubes plywood wing webs use slow-setting epoxy also use slowsetting epoxy glue spruce filler between wing tubes spar makes strong wing gives adequate wood attach tow hooks Also add a webs between end wing tubes next wing rib order 1 4 Model Aviation Nose ribs added duplicate appearance OS prototypes curved steel tube fuselage structure Like keel plywood An overall view nose structure wheel well plywood wing mounting plate show up well aft fuselage showing pushrod exit stabilizer mounting bolts closer lOOK lower tuselage construction Neat compact radio installation Servos rudder elevator spoilers center Antenna housed outer Nyrod tube epoxied side ne ar om tne spruce strip located Just below oetween tne pushrods screw eye used guide spoiler actuation lines turning 90 attach servo ILAI N /8 BALSA FLOOR /8 SIG LITE-PLY KEEL 1 & K /6 BALSA VERTICAL WEB -NOSE TO TAIL 1/8 PLYWXID FLOOR AND FORMERS BLOCKS AND HOOKS FOR3/16K 3/B316 DOWELBOWS LAMINATED JJBLE RUBBER BANDSSPRUCE STAYSROLL BARS ALL /8 X 3/4 SPRL2~ RAILS TO F-3 NOSE FORMERS 12 22 I/B SIG LITE-PLY ONE PIECE KEEL SEE ABOVE 1/16 \BALSA I/B BALSA F I/4SO\\\\ CROSS GR17~ PLYWOOD WEBS SPRUCE FRONTAND BACK Fl I/B PLYI/BPLYWOOTOTHIS BAY FORMERFORMERS RUBBER I/B X 3/4 SPRUCE LAMINATED FOR IDBLOCKS3 1/2 DU-BRO WHEEL ON MUSIC W BOLTS THRJ BLOCK FB 110 4 ALL INTO T -NUTSI/U SIG LITE PLY 1/4 50 SPRUCE STRINGERS NYLON TUBE DU-BRO 2-56 SOCIETSET THRU V2 mWELS 3/8 BALSA WEB ON I/2BALSA DECI F 3 I/B PLYWOCO 3A6 SO SPRUCE BENTTO KEEL 3/B 50BALSA 3/B K 1/2 50 BALSA 3/B BALSA SHEET VB SPRUCE ______________ I/B PLYWOOD LAMINATED 10 I/16PLYWOCO FOR WING MOUNT tI \ 090 MUSIC WIRE 3/32 BALSA STRUTS ON 3/32 WEBS 3/B K 1/2 BALSATIPS I/B X 1/4 SPRUCETE /4K 3/8 BALSA ALL RIBS 3/BX 1/2 RUcOER BASE I/BX 1/4 T E KRAFT SHORT HORN 3/BK 1/2 BALSATIPS SU-PR-UNE CLEVISlO HORN 3A6 SO SPRUCE OUlSIDE3/BBALSA NDSETOTAILIIOPONIYINSIDEALL FRAMING 1/4 K /2 BALSA LAMINATED KEEL 1/16K I/2SHrTETOPAND BOTlOM RODS INTO 250 10 BRASS FRONTONE IMBED IN SPRJCE 3/d K I/i BALSA SPOILER F84 DIAGONAL BRACE SAME AS SPAR 3/32 WEBS I/B PLYWOOD JOINER IN LE I/B PLYWOOD JONER PLATE FRONT AND BACK 1/16 BALSA WEBS FRONT AND BACK OF SRAR SOUD BALSA TIPS 1A6 K I/4CAP STRIrS TOPAND BOTIi I/8PLYwOOD TIP SKID 1/16 BALSA ALL RIBS1/16 SHEET lOPAND rroM L E 3A6 K 3/B SPRUCE SPAR 1OPANDBO1TOM I/4X 3/BBALSA LEDGE SOJCE 4x* SPRucR SECTION A-A1 RYPIcAL CROSSECTION SPORT PILOT SHOWN / F F OP MEHIR RROM* FLY FT2 NOTCUES FOR CO FORMER PRIM RPR OP BOTTOM MANE BOTH FROMj PAY BB3 DWBT P50 0 j 00 STROLL Sq SPRIHCA 4RQ SPRUCE RE5R TRIM TO FIT* PLY CANOPY PLODS A.PRO M MAST ER 50FFRRT USE IS ROTH CANOPY I-SEOMEOTS /jFTCFT 5 c-I F-ri WSRLUMINUM 1-- -1Fa ---7--F0FS 0 RBRR-TRIM TO PITB PRO M MASTER OUTLINEFB4 FBI RHEEBE FBS F3 KI restrain wing wires tubes cheated added small amount polydihedral taper break order get glider turn properly ailerons polydihedral could eliminated func tioning ailerons added would suggest coup ling rudder ailerons use about 30 degrees rudder throw small aileron deflection best results Another possibility try would coupled spoilers rudder together scale dihedral right turn would use right rudder right spoiler have tried other gliders works well Rub baby oil wing plan make paper transparent turn over plan build second half wing Tail surfaces much needs said about tail surfaces construction rather simple ItTs good idea make horizontal stabilizer removable fuselage transportation storage purposes cut taper rudder elevator ribs razor saw Cut little oversize dress down sanding block Use sheet metal screws attach control horns plywood mounts Fuselage Lay down three main longerons over plans pin place Allow bottom longeron extend rear former F3 Right left bottom longerons will later pulled together meet rear fuselage keel Add 1/16 balsa webbing longeron shown plans After glue dries remove plans mark position sides Fl F2 F3 Now add spruce strips inside fuselage sides leaving gaps formers Turn plans over rub baby oil build other side Glue formers Fl F2 F3 dry pull tail together glue Add bottom crossgrain sheeting Fl F3 Pull bottom longerons together meet rear keel Add cross-grain sheeting Add cross braces turtle-deck former position maintain correct width Add spruce strips bottom sheeting between Fl F3 front ofFi key keel Next glue turtledeck formers stringers Add stab mounting structure epoxying blind nuts mounting Glue keel former FTI Glue 1/16 balsa wheel-well followed i plywood wheel sides Add sub-bulkheads keel associated stringers Now add spruce tail post Add stringer rear keel tailpost Next add three vertical grained braces between bottom rear longeron box structure Fit add plywood plates wing mounting Make sure right left plates lined up accurately fore aft Now epoxy wing support tubes fuselage wings wires 1 6 Model Aviation IIcANOPYKuPOR-TII jJ9REIoIRsO ROD RUCE STRIPS sq LAMINATE FUY ANDjPLT FNT FORMER REQUIRED jRIBLITEFLY MARE ALL TR PORMERS EROM * SE * HII LORSTOS OP SPRUCE IRS O DUIRE SECTION B-B r T FULL-SIZE PLANS AVAILABLE . SEE PAGE 128 ICOECISEE F5FI7 MARSYUBA fl5 PROM F FTR 3 444 BALSA 00*005 SYR REESE MARS ALL C SULRI4EAOS FREESPLY SPRUCE j BALSA IBEPY FT7IOUR CORN Fre FT9 c C z r PUSASBOR Err 00100 IS BUILTQZE~ ly 30CM 0051St OSQBSC W hp 30GB WESt NERE hp 35CTION C-C PLY MOUNTING SIJPBUPS PROBUCTS 010015 ASSOUBLY rORO$OUEIO OCR j PLY place ensure proper alignment Glue balsa bottom wing tubes floor fuse Next add 12 Sig Lite-Ply nose ribs trim fit individually wheel added until fuselage covered After covering cut out wheel-well cut small hole covering order insert brass tubing wheel axle Place wheel well insert axle using dab epoxy keep axle backing out small covering patch over axle access hole completes step skid laminated two strips spruce Use slow-setting epoxy glue Mold curve aid jig made finishing nails nailed board Canopy Make a forms mold canopy bows around Laminate two strips 1/16 X spruce strips canopy bows Use slow-setting epoxy allow cure 24 hours Make November 1980 1 7 * BALSA * 044 SPRUCE 44 BALSA OSNOTES PREL OUTLINE * SI 1BALSA WEB Rear view spoilers shows typical Aquilatype linkage fine spring undertension return spoilers closed position VSET fl04405000PO ippP40 Ut W V7 -- 4-4 ri SMUtS 3-pPOiYUtPPOU F -I II-r76 aK F IIi ipo SECTION 0-0 o o - 3 0 44 05047 70 NOtE CflNG PIES t S AEt MOOS PROM PLO SECTION E-E SECTION F-F 10 II 4 S IT I0 POLYHEDRAL DOUBLER U RSI4IJIREO ft SALA Si plywood canopy base fore aft sections Glue forming bottom bases key canopy assembly accurately fuselage Epoxy instrument panel rear bulkhead canopy bases Notch canopy bases accept bows Epoxy bows base after trimming required length Epoxy hardwood dowels simulate roll-over structure full-size aircraft canopies left natural color aluminum Paint canopy frames silver epoxy after filling thinnedout Stuff Epoxy paint gives superior adhesion important servo mounting tape used attach pilots canopy base Add instru ment panel detailing desired point cluster instruments instructor riding back seat located roll-over cage Cut out canopy sections heavy sheet acetate rear canopy piece front canopy three pieces attached plastic canopy base 3M clear plastic tape Tape canopy side base rolling over bows tape other side base Wrap approximately -in tape around bottom canopy base ensure good adhesion front canopy section attach rear acetate piece first followed center section front section last way slipstream cant get under canopy sections during flight might otherwise rip off section Covering suggest using super MonoKote plans three-view drawing depict all-silver version easy route just cover air frame silver MonoKote cut tail numbers out black trim MonoKote Insignia also can made out blue white trim MonoKote go earlier yellow color scheme additional markings can made trim MonoKote Spray paint light blue fuselage flash epoxy paint after cleaning area painted thinner Trim tape used outline trim tabs ailerons dive brakes bottom wings Flying Now come fun part Dont worry about weight too much TG-3 weighed 7 pounds ready-to-fly plans show fore aft center-of-gravity CG posi tions Use forward position initial test flights continue using forward CG until feel comfortable launch have confidence glider As soon possible move aft center-of-gravity position glider will thermal better configuration aft CG TG-3 does beautiful spins have enough control surface movement like use spin lose altitude after working up max ship could just spiral down use spoilers dive TG-3 18 Model Aviation F I1ff FULL-SIZE PLANS AVAILABLE . SEE PAGE 128 YOP4 0tTOM 00150 000570405BALSA La TOP 4 BOrTOTA 101SPOOLS5000 TOP * BOTTOM i III 77- r V4IiI II _-t IIIII II IIIii Ii IIII I IIII IIII IIII III IIII IIIiiIS q LbIlls __nr ~iI 1OOftt flAW ASA 700 4001700 SOIM TOO TO JASHOIJT PIN DOWN $ 000041 INNER S a-ITO PLY 66 Ni 0007 BALSA 01005 cY SECTION GG 0005 010 twOtOi TIP OSlO 4 010 10 TUBE r t0i AT 040 5 40104046 501146 MOTIONS _ 4 _________ NTAL STABILIZ&R 0 THROB VIEW D353N1146 SCI4WEIZ&R rss SHEET ca looks neat spinning down few comments about launch technique First make up towing bridle approximately three feet long like use heavier line used winch Tie tow ring end two 3-ft lengths line Tie remaining end two lines large snap swiveL Using atowingbridle wing-mounted tow hooks have never towing problem approximately 200 flights first flight get someone assist launching preferably person has flown large glider such Sailair Astro Jeff Aquila XL will know much line tension required launch Let helper launch airplane concentrate operating winch flying Because fuselage size airfoil used TG-3 has lot drag lift-overdrag ratio nothing brag about Also sink rate higher average RC sport glider Due higher drag TG-3 does like tight circles thermalling keep circles lift bit larger normal added drag has advantage makes easy landings talk about drag might get impression TG-3 real turkey isnt lift TG-3 will go up fact early summer 1979 two flights over hour duration flat-land flying site help thermal sniffer end summer installed thermal sniffer built little larger wing order make altitude attempt National AMA RC Soaring Record FAI World Record Replogle barograph rode back seat Allup weight 10 pounds 14 ounces paperwork accomplished record try over Labor Day weekend Saturday Sunday weather did cooperate Monday better light winds scattered fair-weather cumulus clouds Aviation Weathefs forecast called cloud base 2000 3000 feet morning moving up 3000 4000 feet later day hoping cloud base 5000 6000 feet During late morning early afternoon number flights made reached 2000 feet Mound 200 pm finally got TG-3 up 3400 feet point TG-3 entered large cumulus let old bird fly cloud few seconds deployed spoilers down mm few seconds TG-3 reappeared driving out bottom cloud Conditions didnt get better day 3400 feet highest altitude recorded wasnt enough FAI World Record since AMA Continued page 108 November 198019 SIMIlAR WINS 1St PLACEPATTERN PRE-NOVICE 1979 WINTER NATS SIMIlAR NEW . SI MI TAR SIMIlAR SIMITAR SPORT SIMIlAR l9-40PowerS0lnehSpan Standard Kit Includes SIMITARPly Wing Sheeting Fuselage SIMIlARFoam Coress SIMITARGear Formed Sliding Tray SI MI TARFull Site Plans SIMITAR WINS 1st PLACENORTHROP FLYING WING CONTEST 1979 High Quality 1000 Cutton $ 95 Multi-color Silkscreen6 Sites 5 M L & XL Eleck Rider Yellow Plus $100 Astron Light Blue Shipping Similar 540 Tan Charge SFF YOUR DEALER OR ORDER ROM BILL EVANS 20825K ROSCOE BLVD CANOGA PARK CA 91306 / TEL 213 344-6391 OR 709-0894 tougher proposition achieve ment stability twin pushers day Charlie put dihedral canard surface added small vertical fin atop flew arrow straight Later upset pusher world winning big meets sensational tractors Incidentally timed early gas meet Tecterboro NJ 1933 34 Leo Weiss Frank Tlush Frank Ehling Charlie Grant Joe Kovel among perhaps dozen entrantsthe sky filled twinpusher rubber jobs climbed like javelins got time lone rubber modeler diamond fuselage tractor turned winning flight four-plus Hank Struck Charlie equally prominent full-scale aviation prolific inventor revolutionary designeryoull find him some history books about air racing devoted chapter him holds valuable patents always fighter won law suit against Martin 202 airlinerthey paid royalty hired him settlement deltas possi bly before world-famous Dr Lippisch ever thought segmented flap Charlies idea Nobody able solve riddle spinning flap Charlie has burnt enough keep secret him self answer lies mechanics 1910 Charlie jumping off roof tiny hang gliderhe weighed 100 pounds sopping wetand sailing out over slop ing meadow hundreds feet first air plane Vermont thinks tried first bike hit downhill bump un ceremoniously airborne about 35 feet ashes over teakettle picked gravel out empennage three weeks biggie model plane manu facturing before 1920 salesman Ritchie Wertz Dayton designs sold over $300000 yearly New York buyers company produced 1000 Minute Men day limited capacity propcarv ing machine invented employed 50 people shop moving production line little cars riding rails also mentioned cable initial small parts right through packaging stopwatched process Around 1920 learned reduce 50% weight increase painting 5% kits genuine flying machinesl milled cambered wings long balsa planks slicing off like bologna refrigeration room il chilled wood dipped wings diluted fish glue varnished finally painted yellow gook barely penetrated wood also own company Grant late Twenties threw Kinksbury Toys depression victim produce 2000 Silver Arrows day cambered silver-colored wings aluminum ribs hold shape blue twin sticks fuselage small aluminum U-shaped pieces re taining sticks allowing rubber pass 1927 flew 650 feet could buy over America secret sheep dip bluedyed casein glue Its weight increase 2% MAN saw fabled rubber de signs fine articles aerodynamics books now collectors items Charlie design team remarkable Dayton-Wright Racer soon after 1920 responsible both leading edge slats wing flaps60 years ago retract able gear Today can get Peanut kit Hank Struck Jetco Charlie driven illustri ous ancestors mad inventors great grandfather designed Governor DeWitt Clinton John Bull locomotives grand father installed propulsive machinery Monitor Charlie now has revolutionary windmill could affect energy pic turehis light years ahead modern ized Dutch windmills testy us says AMA doesnt something soon about kids hell start own organization loves boys airplane modeling boys camp mid-Twenties late Howard McEntee instructor people like 1935 Wakefield-winner Gordon Light Joe Kovel vacationers keep telling supercharged octegenarian age 68 cant join crusade write monumental man care AMA Head quarters challenge wits Hes demon phone Charlies new book Gateway Aero Science has over 300 pages loaded fine drawings great flying models Distrib uted Poiks available through Supply Service AMA HQ has already writ ten another prints markets things out pocket first class Fittingly initials CG CG Schweizer TG-3/Hiner Continued page 19 National Soaring Records zero AMA record set proves TG-3 will thermal stable can carry full-size baro graph TG-3 easy-to-build easy-to-fly Stand-Off Sport Scale Sailplane bit different average Scale job Because rules use compromised scale accuracy somewhat favor better flying characteristics have aware stopwatch landing tape fly Sport Scale Gliders fact 1979 LSF Tournament Scale birds flew duration also flew speed/distance task TG-3 real fun like building fuselage stringers give some considera tion have problems building TG 3 drop line 2213 Prentice Creek Apt 104 Downers Grove IL 60515 Iwili try help References Soaring May-June 1944 TG-3A Ernest Schweizer AIR TRAILS Spring t 979 Glider Factory Technical Order No 09-3OAB-2 Erection Main108 Model Aviation NEWT-SHIRTS BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 2 oz HOT STUFF XXc LINEE EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec 1/2 OZ jV HOT STUFF GAP FILLING HIGH VISCOSITY-TIMED BOND 10 25 sec Use like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD %ad9t Ca P 0 BOX 836 SIMI CA 93062 522-0062 tenance Instructions TG-3A Glider Schweizer Aircraft Corporation Drawings National Archives Photos Documentary Photography black white 1361 ST Photo Sqd 1221 South Fern St Arlington VA 22202 Omcial USAF photos sale write price list ordering instructions 21298AC Front View XTG-3 21294ACTow Plane XTG-3 Background 21157AC Side View XTG-3 21296ACXTG-3 Takeoff Bungee Cor4 June 1979 Paint TG hy Bob Storck Color Aircraft Yellow Blue Color Insignia White Red Blue Black F0R MRGUSI ent meantime have System Alert refuses buzz turn transmitter off give fix try System FS NODupont NoAlert works time works properly ith systems mod forget 15123 98013about 17875Not critical 111361865H48 15044 17038Not critical Radio Technique/Myers Continued page 23 quick check oscilloscope showed exactly what happening wouldnt need oscilloscope see 6 volt DC meter lOOK resistance would work well Just connect between negative lead black wire signal lead orange wire turn receiver turn transmitter off few times Sometimes voltmeter will read positive volts some times zero transmitter off point may thinking its simple didnt start measure ment cut out other stuff Two reasons 1 didnt think time 2 needed System Alert wiring diagram wanted make worthwhile changes Knowing problem solution ob vious added 001 mfd capacitor series System Alert green wire Vs watt 1 megohm resistor base input transistor ground Ive supplied sketch too capacitor passes pulses blocks DC resistor insures input transistor turns off So buzzer must sound optimum values just values worked Ed says will make change production may turn out differAnother fix some people may want know about following frame-time resistor early Ace RC Silver Seven trans mitter encoders 270K R2 just above NE5044 has changed production 330 K reason change increase frame time l8ms adequate 2 3 4 5-channel receivers 22ms necessary 6- 7-channel re ceivers Paul Edmunds Pauls Re Omaha NE discovered need change fix worked out Paul Holsten Ace RC Mr Edmunds good enough write tell about Tom Runge president Ace good enough write tell change has made production have early models either swap 33OKforthe27OKordowhatldidIputaS6K resistor series 270K provisions shorting out again should need arise As happens sons 4-channel Cannon system uses 16 millisecond frame transmitter receiver servos want fly flight packs Ill need 18 ms option Mismatched frame times can lead poor servo performance Its much easier retime transmitter go inside receiver servo re-time match transmitter beauty S7 its easy make whatever change need Frame time wondering what Im talking about time required complete set control pulses plus required reset pulse Theres sketch illus trating elsewhere column Since control pulse per channel U BOX 3957TORRANCE CA 90510 frame time also period required repe titions control pulse individual servo servo designed stretch its control pulse over full frame time transmitter designed work fore given servo may work poorly another manufacturers transmitter since new transmitter will have time either longer causing servo somewhat sloppy about staying its rest position shorter causing servo act jittery Figur ing out what frame time servo wants can subject another whole column now play mix-and-match various servos suspect frame-time problems dont ploy well together Nats takes over December issue no Radio Technique until next year See George M Myers 70 Froehlich Farm Road Hicks vOle NY 11801 Scale WC/Wischers Continued page 28 Thats international cooperation its finest third Canadian team member Karel Solnicka also radio problems round two flight fortunate Piper Twin Comanche splattered itself vertically onto runway completely destroyed static scoring F4C Precision Scale completed models flown third flying day gusty turbulent windswith threat rain contrasted lack wind enjoyed Standoff fliers previous two days Strong crosswinds encountered times three days F4C flights Seven 20 entries made no flights damaged during takeoff Highest flight score day made Frank Knowles Tiger Moth November 1980 109 9 HL GLIDERS flfl 3 SATELLITE KITS EEE 17OLDTIMEGAS Send 25 5 RUBBER 3 NORDIC 1980 catalog 9 COMPETIT ION GAS FUEL DTTIMERS -$1075 FAI Model Supply
Edition: Model Aviation - 1980/11
Page Numbers: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 108, 109
NO OCR TEXT NO OCR TEXT wood structure D-tube leading edge plywood Rudder elevator fitted trim tabs completed airframe fabric covered fuselage fitted single wheel nose skid TG-3s equipped radio navigation lights first TG-3s painted yellow over blue trim flash fuselage few TG-3s blue fuselages yellow wing tail surfaces National insignia applied both surfaces both wings consisting blue circle white star red ball center star rudder markings consisted vertical dark blue band forward portion 13 hori zontal red-and-white alternating stripes red first underside wings lettered U S right ARMY left middle 1942 overall color changed yellow silver Tests 1941 revealed yellow color reducing fabric life Although some photos silver gliders meatball insignia candy-striped tail deleted June 1942 feared markings could onfused Japanese Rising Sun same time new national insignia meatball added rear fuselage sides November 1942 US Army letter ing wing underside deleted brief times 1943 national insignia outlined red yellow unlikely gliders marked Later wing insignia applied upper right lower left wings horizontal white bars blue borders applied side national insignia As changes came late 1943 glider training project disbanded November very few photos exist configurations Color markings information obtained article June 1979 Bungee Cord Paint TG Bob Storek Bungee Cord fine newsletter put out Vintage Sailplane Association 6053 25th Rd N Arlington VA 22207 Any model builder interested old gliders should consider joining organization Back didnt use scale grass must real thing Scenes XTG-3 flight test program Wright Field 1942 look cars background careful look paint schemes reveals photos least two different airplanes onlythree XTG-3s built models paint scheme same lower picture issues Bungee Cord can obtained VSA Bob Storck VSAs archivist can provide VSA members information photos TG-series gliders end war surviving TG-3s sold surplus After war TG-3 credited setting holding US duration record extensive period number TG 3s still flying today Air Force Museum gathering information TG-3s 1975 restoration project hopefully TG-3 will some day display Also member Vintage Sailplane Association restoring TG-3 authentic training paint job TG-3 natural Stand-Off Sport Scale Its slab-sided stringered fuselage easy duplicate squared-off empen nage ship has no wing fillets struts worry about canopy simply built out flat sheets biggest advantage TG-3 modeling November 1980 1 3 Flight shots model See much improvementthere illusion reality putcrewfigures cockpit Jackdeparted scale wing dihedralhe put slight amount polyhedral starting point sharp taper-break wing planform hardly noticeable photos Pictures Dan Pruss John Czeszak men olan vviaon snows prelerreu meingo oi naming toe moueu ior iaunch must also keep tension thetow bridles tow ring will slip off either two wing-mounted towhooks right glider climbs out tow rope Note retrieval chute Jack has never tow problem some 200 flights using twin-bridle system wing geometry wing planform full-size prototype close used average sport RC glider TG-3 has aspect ratio 123-to-i relatively large dihedral 4 degrees per wing Also wing has constant-chord main panels moderate taper tip panels About thing missing polyhedral features add up RC model strong wing plenty area good stability excellent tow characteristics no nasty tip stalls TG-3 Construction Before beginning like cut out wing ribs fuselage bulkheads Make template fuselage keel Out 015 clearplastic sheetthis way dont have cut up plans Using template cut out keel Lite Ply After plywood wing ribs cut out holes drilled tubes use wing root rib template drill holes fuselage plywood wing mounting plates Now good time make up some leading edge material out spruce Dremels new table saw fine blade works well dont have access table saw taper spruce strips razor plane correct angle leading edges band saw can also used shape leading edge stock Wing Construction borrowed Aquila like build tip panels first complete plywood dihedral braces sure build washout very important easy-tofly glider Now block up tip panel per plans build main panel onto tip panel used aliphatic resin construction exception wing tubes plywood wing webs use slow-setting epoxy also use slowsetting epoxy glue spruce filler between wing tubes spar makes strong wing gives adequate wood attach tow hooks Also add a webs between end wing tubes next wing rib order 1 4 Model Aviation Nose ribs added duplicate appearance OS prototypes curved steel tube fuselage structure Like keel plywood An overall view nose structure wheel well plywood wing mounting plate show up well aft fuselage showing pushrod exit stabilizer mounting bolts closer lOOK lower tuselage construction Neat compact radio installation Servos rudder elevator spoilers center Antenna housed outer Nyrod tube epoxied side ne ar om tne spruce strip located Just below oetween tne pushrods screw eye used guide spoiler actuation lines turning 90 attach servo ILAI N /8 BALSA FLOOR /8 SIG LITE-PLY KEEL 1 & K /6 BALSA VERTICAL WEB -NOSE TO TAIL 1/8 PLYWXID FLOOR AND FORMERS BLOCKS AND HOOKS FOR3/16K 3/B316 DOWELBOWS LAMINATED JJBLE RUBBER BANDSSPRUCE STAYSROLL BARS ALL /8 X 3/4 SPRL2~ RAILS TO F-3 NOSE FORMERS 12 22 I/B SIG LITE-PLY ONE PIECE KEEL SEE ABOVE 1/16 \BALSA I/B BALSA F I/4SO\\\\ CROSS GR17~ PLYWOOD WEBS SPRUCE FRONTAND BACK Fl I/B PLYI/BPLYWOOTOTHIS BAY FORMERFORMERS RUBBER I/B X 3/4 SPRUCE LAMINATED FOR IDBLOCKS3 1/2 DU-BRO WHEEL ON MUSIC W BOLTS THRJ BLOCK FB 110 4 ALL INTO T -NUTSI/U SIG LITE PLY 1/4 50 SPRUCE STRINGERS NYLON TUBE DU-BRO 2-56 SOCIETSET THRU V2 mWELS 3/8 BALSA WEB ON I/2BALSA DECI F 3 I/B PLYWOCO 3A6 SO SPRUCE BENTTO KEEL 3/B 50BALSA 3/B K 1/2 50 BALSA 3/B BALSA SHEET VB SPRUCE ______________ I/B PLYWOOD LAMINATED 10 I/16PLYWOCO FOR WING MOUNT tI \ 090 MUSIC WIRE 3/32 BALSA STRUTS ON 3/32 WEBS 3/B K 1/2 BALSATIPS I/B X 1/4 SPRUCETE /4K 3/8 BALSA ALL RIBS 3/BX 1/2 RUcOER BASE I/BX 1/4 T E KRAFT SHORT HORN 3/BK 1/2 BALSATIPS SU-PR-UNE CLEVISlO HORN 3A6 SO SPRUCE OUlSIDE3/BBALSA NDSETOTAILIIOPONIYINSIDEALL FRAMING 1/4 K /2 BALSA LAMINATED KEEL 1/16K I/2SHrTETOPAND BOTlOM RODS INTO 250 10 BRASS FRONTONE IMBED IN SPRJCE 3/d K I/i BALSA SPOILER F84 DIAGONAL BRACE SAME AS SPAR 3/32 WEBS I/B PLYWOOD JOINER IN LE I/B PLYWOOD JONER PLATE FRONT AND BACK 1/16 BALSA WEBS FRONT AND BACK OF SRAR SOUD BALSA TIPS 1A6 K I/4CAP STRIrS TOPAND BOTIi I/8PLYwOOD TIP SKID 1/16 BALSA ALL RIBS1/16 SHEET lOPAND rroM L E 3A6 K 3/B SPRUCE SPAR 1OPANDBO1TOM I/4X 3/BBALSA LEDGE SOJCE 4x* SPRucR SECTION A-A1 RYPIcAL CROSSECTION SPORT PILOT SHOWN / F F OP MEHIR RROM* FLY FT2 NOTCUES FOR CO FORMER PRIM RPR OP BOTTOM MANE BOTH FROMj PAY BB3 DWBT P50 0 j 00 STROLL Sq SPRIHCA 4RQ SPRUCE RE5R TRIM TO FIT* PLY CANOPY PLODS A.PRO M MAST ER 50FFRRT USE IS ROTH CANOPY I-SEOMEOTS /jFTCFT 5 c-I F-ri WSRLUMINUM 1-- -1Fa ---7--F0FS 0 RBRR-TRIM TO PITB PRO M MASTER OUTLINEFB4 FBI RHEEBE FBS F3 KI restrain wing wires tubes cheated added small amount polydihedral taper break order get glider turn properly ailerons polydihedral could eliminated func tioning ailerons added would suggest coup ling rudder ailerons use about 30 degrees rudder throw small aileron deflection best results Another possibility try would coupled spoilers rudder together scale dihedral right turn would use right rudder right spoiler have tried other gliders works well Rub baby oil wing plan make paper transparent turn over plan build second half wing Tail surfaces much needs said about tail surfaces construction rather simple ItTs good idea make horizontal stabilizer removable fuselage transportation storage purposes cut taper rudder elevator ribs razor saw Cut little oversize dress down sanding block Use sheet metal screws attach control horns plywood mounts Fuselage Lay down three main longerons over plans pin place Allow bottom longeron extend rear former F3 Right left bottom longerons will later pulled together meet rear fuselage keel Add 1/16 balsa webbing longeron shown plans After glue dries remove plans mark position sides Fl F2 F3 Now add spruce strips inside fuselage sides leaving gaps formers Turn plans over rub baby oil build other side Glue formers Fl F2 F3 dry pull tail together glue Add bottom crossgrain sheeting Fl F3 Pull bottom longerons together meet rear keel Add cross-grain sheeting Add cross braces turtle-deck former position maintain correct width Add spruce strips bottom sheeting between Fl F3 front ofFi key keel Next glue turtledeck formers stringers Add stab mounting structure epoxying blind nuts mounting Glue keel former FTI Glue 1/16 balsa wheel-well followed i plywood wheel sides Add sub-bulkheads keel associated stringers Now add spruce tail post Add stringer rear keel tailpost Next add three vertical grained braces between bottom rear longeron box structure Fit add plywood plates wing mounting Make sure right left plates lined up accurately fore aft Now epoxy wing support tubes fuselage wings wires 1 6 Model Aviation IIcANOPYKuPOR-TII jJ9REIoIRsO ROD RUCE STRIPS sq LAMINATE FUY ANDjPLT FNT FORMER REQUIRED jRIBLITEFLY MARE ALL TR PORMERS EROM * SE * HII LORSTOS OP SPRUCE IRS O DUIRE SECTION B-B r T FULL-SIZE PLANS AVAILABLE . SEE PAGE 128 ICOECISEE F5FI7 MARSYUBA fl5 PROM F FTR 3 444 BALSA 00*005 SYR REESE MARS ALL C SULRI4EAOS FREESPLY SPRUCE j BALSA IBEPY FT7IOUR CORN Fre FT9 c C z r PUSASBOR Err 00100 IS BUILTQZE~ ly 30CM 0051St OSQBSC W hp 30GB WESt NERE hp 35CTION C-C PLY MOUNTING SIJPBUPS PROBUCTS 010015 ASSOUBLY rORO$OUEIO OCR j PLY place ensure proper alignment Glue balsa bottom wing tubes floor fuse Next add 12 Sig Lite-Ply nose ribs trim fit individually wheel added until fuselage covered After covering cut out wheel-well cut small hole covering order insert brass tubing wheel axle Place wheel well insert axle using dab epoxy keep axle backing out small covering patch over axle access hole completes step skid laminated two strips spruce Use slow-setting epoxy glue Mold curve aid jig made finishing nails nailed board Canopy Make a forms mold canopy bows around Laminate two strips 1/16 X spruce strips canopy bows Use slow-setting epoxy allow cure 24 hours Make November 1980 1 7 * BALSA * 044 SPRUCE 44 BALSA OSNOTES PREL OUTLINE * SI 1BALSA WEB Rear view spoilers shows typical Aquilatype linkage fine spring undertension return spoilers closed position VSET fl04405000PO ippP40 Ut W V7 -- 4-4 ri SMUtS 3-pPOiYUtPPOU F -I II-r76 aK F IIi ipo SECTION 0-0 o o - 3 0 44 05047 70 NOtE CflNG PIES t S AEt MOOS PROM PLO SECTION E-E SECTION F-F 10 II 4 S IT I0 POLYHEDRAL DOUBLER U RSI4IJIREO ft SALA Si plywood canopy base fore aft sections Glue forming bottom bases key canopy assembly accurately fuselage Epoxy instrument panel rear bulkhead canopy bases Notch canopy bases accept bows Epoxy bows base after trimming required length Epoxy hardwood dowels simulate roll-over structure full-size aircraft canopies left natural color aluminum Paint canopy frames silver epoxy after filling thinnedout Stuff Epoxy paint gives superior adhesion important servo mounting tape used attach pilots canopy base Add instru ment panel detailing desired point cluster instruments instructor riding back seat located roll-over cage Cut out canopy sections heavy sheet acetate rear canopy piece front canopy three pieces attached plastic canopy base 3M clear plastic tape Tape canopy side base rolling over bows tape other side base Wrap approximately -in tape around bottom canopy base ensure good adhesion front canopy section attach rear acetate piece first followed center section front section last way slipstream cant get under canopy sections during flight might otherwise rip off section Covering suggest using super MonoKote plans three-view drawing depict all-silver version easy route just cover air frame silver MonoKote cut tail numbers out black trim MonoKote Insignia also can made out blue white trim MonoKote go earlier yellow color scheme additional markings can made trim MonoKote Spray paint light blue fuselage flash epoxy paint after cleaning area painted thinner Trim tape used outline trim tabs ailerons dive brakes bottom wings Flying Now come fun part Dont worry about weight too much TG-3 weighed 7 pounds ready-to-fly plans show fore aft center-of-gravity CG posi tions Use forward position initial test flights continue using forward CG until feel comfortable launch have confidence glider As soon possible move aft center-of-gravity position glider will thermal better configuration aft CG TG-3 does beautiful spins have enough control surface movement like use spin lose altitude after working up max ship could just spiral down use spoilers dive TG-3 18 Model Aviation F I1ff FULL-SIZE PLANS AVAILABLE . SEE PAGE 128 YOP4 0tTOM 00150 000570405BALSA La TOP 4 BOrTOTA 101SPOOLS5000 TOP * BOTTOM i III 77- r V4IiI II _-t IIIII II IIIii Ii IIII I IIII IIII IIII III IIII IIIiiIS q LbIlls __nr ~iI 1OOftt flAW ASA 700 4001700 SOIM TOO TO JASHOIJT PIN DOWN $ 000041 INNER S a-ITO PLY 66 Ni 0007 BALSA 01005 cY SECTION GG 0005 010 twOtOi TIP OSlO 4 010 10 TUBE r t0i AT 040 5 40104046 501146 MOTIONS _ 4 _________ NTAL STABILIZ&R 0 THROB VIEW D353N1146 SCI4WEIZ&R rss SHEET ca looks neat spinning down few comments about launch technique First make up towing bridle approximately three feet long like use heavier line used winch Tie tow ring end two 3-ft lengths line Tie remaining end two lines large snap swiveL Using atowingbridle wing-mounted tow hooks have never towing problem approximately 200 flights first flight get someone assist launching preferably person has flown large glider such Sailair Astro Jeff Aquila XL will know much line tension required launch Let helper launch airplane concentrate operating winch flying Because fuselage size airfoil used TG-3 has lot drag lift-overdrag ratio nothing brag about Also sink rate higher average RC sport glider Due higher drag TG-3 does like tight circles thermalling keep circles lift bit larger normal added drag has advantage makes easy landings talk about drag might get impression TG-3 real turkey isnt lift TG-3 will go up fact early summer 1979 two flights over hour duration flat-land flying site help thermal sniffer end summer installed thermal sniffer built little larger wing order make altitude attempt National AMA RC Soaring Record FAI World Record Replogle barograph rode back seat Allup weight 10 pounds 14 ounces paperwork accomplished record try over Labor Day weekend Saturday Sunday weather did cooperate Monday better light winds scattered fair-weather cumulus clouds Aviation Weathefs forecast called cloud base 2000 3000 feet morning moving up 3000 4000 feet later day hoping cloud base 5000 6000 feet During late morning early afternoon number flights made reached 2000 feet Mound 200 pm finally got TG-3 up 3400 feet point TG-3 entered large cumulus let old bird fly cloud few seconds deployed spoilers down mm few seconds TG-3 reappeared driving out bottom cloud Conditions didnt get better day 3400 feet highest altitude recorded wasnt enough FAI World Record since AMA Continued page 108 November 198019 SIMIlAR WINS 1St PLACEPATTERN PRE-NOVICE 1979 WINTER NATS SIMIlAR NEW . SI MI TAR SIMIlAR SIMITAR SPORT SIMIlAR l9-40PowerS0lnehSpan Standard Kit Includes SIMITARPly Wing Sheeting Fuselage SIMIlARFoam Coress SIMITARGear Formed Sliding Tray SI MI TARFull Site Plans SIMITAR WINS 1st PLACENORTHROP FLYING WING CONTEST 1979 High Quality 1000 Cutton $ 95 Multi-color Silkscreen6 Sites 5 M L & XL Eleck Rider Yellow Plus $100 Astron Light Blue Shipping Similar 540 Tan Charge SFF YOUR DEALER OR ORDER ROM BILL EVANS 20825K ROSCOE BLVD CANOGA PARK CA 91306 / TEL 213 344-6391 OR 709-0894 tougher proposition achieve ment stability twin pushers day Charlie put dihedral canard surface added small vertical fin atop flew arrow straight Later upset pusher world winning big meets sensational tractors Incidentally timed early gas meet Tecterboro NJ 1933 34 Leo Weiss Frank Tlush Frank Ehling Charlie Grant Joe Kovel among perhaps dozen entrantsthe sky filled twinpusher rubber jobs climbed like javelins got time lone rubber modeler diamond fuselage tractor turned winning flight four-plus Hank Struck Charlie equally prominent full-scale aviation prolific inventor revolutionary designeryoull find him some history books about air racing devoted chapter him holds valuable patents always fighter won law suit against Martin 202 airlinerthey paid royalty hired him settlement deltas possi bly before world-famous Dr Lippisch ever thought segmented flap Charlies idea Nobody able solve riddle spinning flap Charlie has burnt enough keep secret him self answer lies mechanics 1910 Charlie jumping off roof tiny hang gliderhe weighed 100 pounds sopping wetand sailing out over slop ing meadow hundreds feet first air plane Vermont thinks tried first bike hit downhill bump un ceremoniously airborne about 35 feet ashes over teakettle picked gravel out empennage three weeks biggie model plane manu facturing before 1920 salesman Ritchie Wertz Dayton designs sold over $300000 yearly New York buyers company produced 1000 Minute Men day limited capacity propcarv ing machine invented employed 50 people shop moving production line little cars riding rails also mentioned cable initial small parts right through packaging stopwatched process Around 1920 learned reduce 50% weight increase painting 5% kits genuine flying machinesl milled cambered wings long balsa planks slicing off like bologna refrigeration room il chilled wood dipped wings diluted fish glue varnished finally painted yellow gook barely penetrated wood also own company Grant late Twenties threw Kinksbury Toys depression victim produce 2000 Silver Arrows day cambered silver-colored wings aluminum ribs hold shape blue twin sticks fuselage small aluminum U-shaped pieces re taining sticks allowing rubber pass 1927 flew 650 feet could buy over America secret sheep dip bluedyed casein glue Its weight increase 2% MAN saw fabled rubber de signs fine articles aerodynamics books now collectors items Charlie design team remarkable Dayton-Wright Racer soon after 1920 responsible both leading edge slats wing flaps60 years ago retract able gear Today can get Peanut kit Hank Struck Jetco Charlie driven illustri ous ancestors mad inventors great grandfather designed Governor DeWitt Clinton John Bull locomotives grand father installed propulsive machinery Monitor Charlie now has revolutionary windmill could affect energy pic turehis light years ahead modern ized Dutch windmills testy us says AMA doesnt something soon about kids hell start own organization loves boys airplane modeling boys camp mid-Twenties late Howard McEntee instructor people like 1935 Wakefield-winner Gordon Light Joe Kovel vacationers keep telling supercharged octegenarian age 68 cant join crusade write monumental man care AMA Head quarters challenge wits Hes demon phone Charlies new book Gateway Aero Science has over 300 pages loaded fine drawings great flying models Distrib uted Poiks available through Supply Service AMA HQ has already writ ten another prints markets things out pocket first class Fittingly initials CG CG Schweizer TG-3/Hiner Continued page 19 National Soaring Records zero AMA record set proves TG-3 will thermal stable can carry full-size baro graph TG-3 easy-to-build easy-to-fly Stand-Off Sport Scale Sailplane bit different average Scale job Because rules use compromised scale accuracy somewhat favor better flying characteristics have aware stopwatch landing tape fly Sport Scale Gliders fact 1979 LSF Tournament Scale birds flew duration also flew speed/distance task TG-3 real fun like building fuselage stringers give some considera tion have problems building TG 3 drop line 2213 Prentice Creek Apt 104 Downers Grove IL 60515 Iwili try help References Soaring May-June 1944 TG-3A Ernest Schweizer AIR TRAILS Spring t 979 Glider Factory Technical Order No 09-3OAB-2 Erection Main108 Model Aviation NEWT-SHIRTS BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 2 oz HOT STUFF XXc LINEE EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec 1/2 OZ jV HOT STUFF GAP FILLING HIGH VISCOSITY-TIMED BOND 10 25 sec Use like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD %ad9t Ca P 0 BOX 836 SIMI CA 93062 522-0062 tenance Instructions TG-3A Glider Schweizer Aircraft Corporation Drawings National Archives Photos Documentary Photography black white 1361 ST Photo Sqd 1221 South Fern St Arlington VA 22202 Omcial USAF photos sale write price list ordering instructions 21298AC Front View XTG-3 21294ACTow Plane XTG-3 Background 21157AC Side View XTG-3 21296ACXTG-3 Takeoff Bungee Cor4 June 1979 Paint TG hy Bob Storck Color Aircraft Yellow Blue Color Insignia White Red Blue Black F0R MRGUSI ent meantime have System Alert refuses buzz turn transmitter off give fix try System FS NODupont NoAlert works time works properly ith systems mod forget 15123 98013about 17875Not critical 111361865H48 15044 17038Not critical Radio Technique/Myers Continued page 23 quick check oscilloscope showed exactly what happening wouldnt need oscilloscope see 6 volt DC meter lOOK resistance would work well Just connect between negative lead black wire signal lead orange wire turn receiver turn transmitter off few times Sometimes voltmeter will read positive volts some times zero transmitter off point may thinking its simple didnt start measure ment cut out other stuff Two reasons 1 didnt think time 2 needed System Alert wiring diagram wanted make worthwhile changes Knowing problem solution ob vious added 001 mfd capacitor series System Alert green wire Vs watt 1 megohm resistor base input transistor ground Ive supplied sketch too capacitor passes pulses blocks DC resistor insures input transistor turns off So buzzer must sound optimum values just values worked Ed says will make change production may turn out differAnother fix some people may want know about following frame-time resistor early Ace RC Silver Seven trans mitter encoders 270K R2 just above NE5044 has changed production 330 K reason change increase frame time l8ms adequate 2 3 4 5-channel receivers 22ms necessary 6- 7-channel re ceivers Paul Edmunds Pauls Re Omaha NE discovered need change fix worked out Paul Holsten Ace RC Mr Edmunds good enough write tell about Tom Runge president Ace good enough write tell change has made production have early models either swap 33OKforthe27OKordowhatldidIputaS6K resistor series 270K provisions shorting out again should need arise As happens sons 4-channel Cannon system uses 16 millisecond frame transmitter receiver servos want fly flight packs Ill need 18 ms option Mismatched frame times can lead poor servo performance Its much easier retime transmitter go inside receiver servo re-time match transmitter beauty S7 its easy make whatever change need Frame time wondering what Im talking about time required complete set control pulses plus required reset pulse Theres sketch illus trating elsewhere column Since control pulse per channel U BOX 3957TORRANCE CA 90510 frame time also period required repe titions control pulse individual servo servo designed stretch its control pulse over full frame time transmitter designed work fore given servo may work poorly another manufacturers transmitter since new transmitter will have time either longer causing servo somewhat sloppy about staying its rest position shorter causing servo act jittery Figur ing out what frame time servo wants can subject another whole column now play mix-and-match various servos suspect frame-time problems dont ploy well together Nats takes over December issue no Radio Technique until next year See George M Myers 70 Froehlich Farm Road Hicks vOle NY 11801 Scale WC/Wischers Continued page 28 Thats international cooperation its finest third Canadian team member Karel Solnicka also radio problems round two flight fortunate Piper Twin Comanche splattered itself vertically onto runway completely destroyed static scoring F4C Precision Scale completed models flown third flying day gusty turbulent windswith threat rain contrasted lack wind enjoyed Standoff fliers previous two days Strong crosswinds encountered times three days F4C flights Seven 20 entries made no flights damaged during takeoff Highest flight score day made Frank Knowles Tiger Moth November 1980 109 9 HL GLIDERS flfl 3 SATELLITE KITS EEE 17OLDTIMEGAS Send 25 5 RUBBER 3 NORDIC 1980 catalog 9 COMPETIT ION GAS FUEL DTTIMERS -$1075 FAI Model Supply
Edition: Model Aviation - 1980/11
Page Numbers: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 108, 109
NO OCR TEXT NO OCR TEXT wood structure D-tube leading edge plywood Rudder elevator fitted trim tabs completed airframe fabric covered fuselage fitted single wheel nose skid TG-3s equipped radio navigation lights first TG-3s painted yellow over blue trim flash fuselage few TG-3s blue fuselages yellow wing tail surfaces National insignia applied both surfaces both wings consisting blue circle white star red ball center star rudder markings consisted vertical dark blue band forward portion 13 hori zontal red-and-white alternating stripes red first underside wings lettered U S right ARMY left middle 1942 overall color changed yellow silver Tests 1941 revealed yellow color reducing fabric life Although some photos silver gliders meatball insignia candy-striped tail deleted June 1942 feared markings could onfused Japanese Rising Sun same time new national insignia meatball added rear fuselage sides November 1942 US Army letter ing wing underside deleted brief times 1943 national insignia outlined red yellow unlikely gliders marked Later wing insignia applied upper right lower left wings horizontal white bars blue borders applied side national insignia As changes came late 1943 glider training project disbanded November very few photos exist configurations Color markings information obtained article June 1979 Bungee Cord Paint TG Bob Storek Bungee Cord fine newsletter put out Vintage Sailplane Association 6053 25th Rd N Arlington VA 22207 Any model builder interested old gliders should consider joining organization Back didnt use scale grass must real thing Scenes XTG-3 flight test program Wright Field 1942 look cars background careful look paint schemes reveals photos least two different airplanes onlythree XTG-3s built models paint scheme same lower picture issues Bungee Cord can obtained VSA Bob Storck VSAs archivist can provide VSA members information photos TG-series gliders end war surviving TG-3s sold surplus After war TG-3 credited setting holding US duration record extensive period number TG 3s still flying today Air Force Museum gathering information TG-3s 1975 restoration project hopefully TG-3 will some day display Also member Vintage Sailplane Association restoring TG-3 authentic training paint job TG-3 natural Stand-Off Sport Scale Its slab-sided stringered fuselage easy duplicate squared-off empen nage ship has no wing fillets struts worry about canopy simply built out flat sheets biggest advantage TG-3 modeling November 1980 1 3 Flight shots model See much improvementthere illusion reality putcrewfigures cockpit Jackdeparted scale wing dihedralhe put slight amount polyhedral starting point sharp taper-break wing planform hardly noticeable photos Pictures Dan Pruss John Czeszak men olan vviaon snows prelerreu meingo oi naming toe moueu ior iaunch must also keep tension thetow bridles tow ring will slip off either two wing-mounted towhooks right glider climbs out tow rope Note retrieval chute Jack has never tow problem some 200 flights using twin-bridle system wing geometry wing planform full-size prototype close used average sport RC glider TG-3 has aspect ratio 123-to-i relatively large dihedral 4 degrees per wing Also wing has constant-chord main panels moderate taper tip panels About thing missing polyhedral features add up RC model strong wing plenty area good stability excellent tow characteristics no nasty tip stalls TG-3 Construction Before beginning like cut out wing ribs fuselage bulkheads Make template fuselage keel Out 015 clearplastic sheetthis way dont have cut up plans Using template cut out keel Lite Ply After plywood wing ribs cut out holes drilled tubes use wing root rib template drill holes fuselage plywood wing mounting plates Now good time make up some leading edge material out spruce Dremels new table saw fine blade works well dont have access table saw taper spruce strips razor plane correct angle leading edges band saw can also used shape leading edge stock Wing Construction borrowed Aquila like build tip panels first complete plywood dihedral braces sure build washout very important easy-tofly glider Now block up tip panel per plans build main panel onto tip panel used aliphatic resin construction exception wing tubes plywood wing webs use slow-setting epoxy also use slowsetting epoxy glue spruce filler between wing tubes spar makes strong wing gives adequate wood attach tow hooks Also add a webs between end wing tubes next wing rib order 1 4 Model Aviation Nose ribs added duplicate appearance OS prototypes curved steel tube fuselage structure Like keel plywood An overall view nose structure wheel well plywood wing mounting plate show up well aft fuselage showing pushrod exit stabilizer mounting bolts closer lOOK lower tuselage construction Neat compact radio installation Servos rudder elevator spoilers center Antenna housed outer Nyrod tube epoxied side ne ar om tne spruce strip located Just below oetween tne pushrods screw eye used guide spoiler actuation lines turning 90 attach servo ILAI N /8 BALSA FLOOR /8 SIG LITE-PLY KEEL 1 & K /6 BALSA VERTICAL WEB -NOSE TO TAIL 1/8 PLYWXID FLOOR AND FORMERS BLOCKS AND HOOKS FOR3/16K 3/B316 DOWELBOWS LAMINATED JJBLE RUBBER BANDSSPRUCE STAYSROLL BARS ALL /8 X 3/4 SPRL2~ RAILS TO F-3 NOSE FORMERS 12 22 I/B SIG LITE-PLY ONE PIECE KEEL SEE ABOVE 1/16 \BALSA I/B BALSA F I/4SO\\\\ CROSS GR17~ PLYWOOD WEBS SPRUCE FRONTAND BACK Fl I/B PLYI/BPLYWOOTOTHIS BAY FORMERFORMERS RUBBER I/B X 3/4 SPRUCE LAMINATED FOR IDBLOCKS3 1/2 DU-BRO WHEEL ON MUSIC W BOLTS THRJ BLOCK FB 110 4 ALL INTO T -NUTSI/U SIG LITE PLY 1/4 50 SPRUCE STRINGERS NYLON TUBE DU-BRO 2-56 SOCIETSET THRU V2 mWELS 3/8 BALSA WEB ON I/2BALSA DECI F 3 I/B PLYWOCO 3A6 SO SPRUCE BENTTO KEEL 3/B 50BALSA 3/B K 1/2 50 BALSA 3/B BALSA SHEET VB SPRUCE ______________ I/B PLYWOOD LAMINATED 10 I/16PLYWOCO FOR WING MOUNT tI \ 090 MUSIC WIRE 3/32 BALSA STRUTS ON 3/32 WEBS 3/B K 1/2 BALSATIPS I/B X 1/4 SPRUCETE /4K 3/8 BALSA ALL RIBS 3/BX 1/2 RUcOER BASE I/BX 1/4 T E KRAFT SHORT HORN 3/BK 1/2 BALSATIPS SU-PR-UNE CLEVISlO HORN 3A6 SO SPRUCE OUlSIDE3/BBALSA NDSETOTAILIIOPONIYINSIDEALL FRAMING 1/4 K /2 BALSA LAMINATED KEEL 1/16K I/2SHrTETOPAND BOTlOM RODS INTO 250 10 BRASS FRONTONE IMBED IN SPRJCE 3/d K I/i BALSA SPOILER F84 DIAGONAL BRACE SAME AS SPAR 3/32 WEBS I/B PLYWOOD JOINER IN LE I/B PLYWOOD JONER PLATE FRONT AND BACK 1/16 BALSA WEBS FRONT AND BACK OF SRAR SOUD BALSA TIPS 1A6 K I/4CAP STRIrS TOPAND BOTIi I/8PLYwOOD TIP SKID 1/16 BALSA ALL RIBS1/16 SHEET lOPAND rroM L E 3A6 K 3/B SPRUCE SPAR 1OPANDBO1TOM I/4X 3/BBALSA LEDGE SOJCE 4x* SPRucR SECTION A-A1 RYPIcAL CROSSECTION SPORT PILOT SHOWN / F F OP MEHIR RROM* FLY FT2 NOTCUES FOR CO FORMER PRIM RPR OP BOTTOM MANE BOTH FROMj PAY BB3 DWBT P50 0 j 00 STROLL Sq SPRIHCA 4RQ SPRUCE RE5R TRIM TO FIT* PLY CANOPY PLODS A.PRO M MAST ER 50FFRRT USE IS ROTH CANOPY I-SEOMEOTS /jFTCFT 5 c-I F-ri WSRLUMINUM 1-- -1Fa ---7--F0FS 0 RBRR-TRIM TO PITB PRO M MASTER OUTLINEFB4 FBI RHEEBE FBS F3 KI restrain wing wires tubes cheated added small amount polydihedral taper break order get glider turn properly ailerons polydihedral could eliminated func tioning ailerons added would suggest coup ling rudder ailerons use about 30 degrees rudder throw small aileron deflection best results Another possibility try would coupled spoilers rudder together scale dihedral right turn would use right rudder right spoiler have tried other gliders works well Rub baby oil wing plan make paper transparent turn over plan build second half wing Tail surfaces much needs said about tail surfaces construction rather simple ItTs good idea make horizontal stabilizer removable fuselage transportation storage purposes cut taper rudder elevator ribs razor saw Cut little oversize dress down sanding block Use sheet metal screws attach control horns plywood mounts Fuselage Lay down three main longerons over plans pin place Allow bottom longeron extend rear former F3 Right left bottom longerons will later pulled together meet rear fuselage keel Add 1/16 balsa webbing longeron shown plans After glue dries remove plans mark position sides Fl F2 F3 Now add spruce strips inside fuselage sides leaving gaps formers Turn plans over rub baby oil build other side Glue formers Fl F2 F3 dry pull tail together glue Add bottom crossgrain sheeting Fl F3 Pull bottom longerons together meet rear keel Add cross-grain sheeting Add cross braces turtle-deck former position maintain correct width Add spruce strips bottom sheeting between Fl F3 front ofFi key keel Next glue turtledeck formers stringers Add stab mounting structure epoxying blind nuts mounting Glue keel former FTI Glue 1/16 balsa wheel-well followed i plywood wheel sides Add sub-bulkheads keel associated stringers Now add spruce tail post Add stringer rear keel tailpost Next add three vertical grained braces between bottom rear longeron box structure Fit add plywood plates wing mounting Make sure right left plates lined up accurately fore aft Now epoxy wing support tubes fuselage wings wires 1 6 Model Aviation IIcANOPYKuPOR-TII jJ9REIoIRsO ROD RUCE STRIPS sq LAMINATE FUY ANDjPLT FNT FORMER REQUIRED jRIBLITEFLY MARE ALL TR PORMERS EROM * SE * HII LORSTOS OP SPRUCE IRS O DUIRE SECTION B-B r T FULL-SIZE PLANS AVAILABLE . SEE PAGE 128 ICOECISEE F5FI7 MARSYUBA fl5 PROM F FTR 3 444 BALSA 00*005 SYR REESE MARS ALL C SULRI4EAOS FREESPLY SPRUCE j BALSA IBEPY FT7IOUR CORN Fre FT9 c C z r PUSASBOR Err 00100 IS BUILTQZE~ ly 30CM 0051St OSQBSC W hp 30GB WESt NERE hp 35CTION C-C PLY MOUNTING SIJPBUPS PROBUCTS 010015 ASSOUBLY rORO$OUEIO OCR j PLY place ensure proper alignment Glue balsa bottom wing tubes floor fuse Next add 12 Sig Lite-Ply nose ribs trim fit individually wheel added until fuselage covered After covering cut out wheel-well cut small hole covering order insert brass tubing wheel axle Place wheel well insert axle using dab epoxy keep axle backing out small covering patch over axle access hole completes step skid laminated two strips spruce Use slow-setting epoxy glue Mold curve aid jig made finishing nails nailed board Canopy Make a forms mold canopy bows around Laminate two strips 1/16 X spruce strips canopy bows Use slow-setting epoxy allow cure 24 hours Make November 1980 1 7 * BALSA * 044 SPRUCE 44 BALSA OSNOTES PREL OUTLINE * SI 1BALSA WEB Rear view spoilers shows typical Aquilatype linkage fine spring undertension return spoilers closed position VSET fl04405000PO ippP40 Ut W V7 -- 4-4 ri SMUtS 3-pPOiYUtPPOU F -I II-r76 aK F IIi ipo SECTION 0-0 o o - 3 0 44 05047 70 NOtE CflNG PIES t S AEt MOOS PROM PLO SECTION E-E SECTION F-F 10 II 4 S IT I0 POLYHEDRAL DOUBLER U RSI4IJIREO ft SALA Si plywood canopy base fore aft sections Glue forming bottom bases key canopy assembly accurately fuselage Epoxy instrument panel rear bulkhead canopy bases Notch canopy bases accept bows Epoxy bows base after trimming required length Epoxy hardwood dowels simulate roll-over structure full-size aircraft canopies left natural color aluminum Paint canopy frames silver epoxy after filling thinnedout Stuff Epoxy paint gives superior adhesion important servo mounting tape used attach pilots canopy base Add instru ment panel detailing desired point cluster instruments instructor riding back seat located roll-over cage Cut out canopy sections heavy sheet acetate rear canopy piece front canopy three pieces attached plastic canopy base 3M clear plastic tape Tape canopy side base rolling over bows tape other side base Wrap approximately -in tape around bottom canopy base ensure good adhesion front canopy section attach rear acetate piece first followed center section front section last way slipstream cant get under canopy sections during flight might otherwise rip off section Covering suggest using super MonoKote plans three-view drawing depict all-silver version easy route just cover air frame silver MonoKote cut tail numbers out black trim MonoKote Insignia also can made out blue white trim MonoKote go earlier yellow color scheme additional markings can made trim MonoKote Spray paint light blue fuselage flash epoxy paint after cleaning area painted thinner Trim tape used outline trim tabs ailerons dive brakes bottom wings Flying Now come fun part Dont worry about weight too much TG-3 weighed 7 pounds ready-to-fly plans show fore aft center-of-gravity CG posi tions Use forward position initial test flights continue using forward CG until feel comfortable launch have confidence glider As soon possible move aft center-of-gravity position glider will thermal better configuration aft CG TG-3 does beautiful spins have enough control surface movement like use spin lose altitude after working up max ship could just spiral down use spoilers dive TG-3 18 Model Aviation F I1ff FULL-SIZE PLANS AVAILABLE . SEE PAGE 128 YOP4 0tTOM 00150 000570405BALSA La TOP 4 BOrTOTA 101SPOOLS5000 TOP * BOTTOM i III 77- r V4IiI II _-t IIIII II IIIii Ii IIII I IIII IIII IIII III IIII IIIiiIS q LbIlls __nr ~iI 1OOftt flAW ASA 700 4001700 SOIM TOO TO JASHOIJT PIN DOWN $ 000041 INNER S a-ITO PLY 66 Ni 0007 BALSA 01005 cY SECTION GG 0005 010 twOtOi TIP OSlO 4 010 10 TUBE r t0i AT 040 5 40104046 501146 MOTIONS _ 4 _________ NTAL STABILIZ&R 0 THROB VIEW D353N1146 SCI4WEIZ&R rss SHEET ca looks neat spinning down few comments about launch technique First make up towing bridle approximately three feet long like use heavier line used winch Tie tow ring end two 3-ft lengths line Tie remaining end two lines large snap swiveL Using atowingbridle wing-mounted tow hooks have never towing problem approximately 200 flights first flight get someone assist launching preferably person has flown large glider such Sailair Astro Jeff Aquila XL will know much line tension required launch Let helper launch airplane concentrate operating winch flying Because fuselage size airfoil used TG-3 has lot drag lift-overdrag ratio nothing brag about Also sink rate higher average RC sport glider Due higher drag TG-3 does like tight circles thermalling keep circles lift bit larger normal added drag has advantage makes easy landings talk about drag might get impression TG-3 real turkey isnt lift TG-3 will go up fact early summer 1979 two flights over hour duration flat-land flying site help thermal sniffer end summer installed thermal sniffer built little larger wing order make altitude attempt National AMA RC Soaring Record FAI World Record Replogle barograph rode back seat Allup weight 10 pounds 14 ounces paperwork accomplished record try over Labor Day weekend Saturday Sunday weather did cooperate Monday better light winds scattered fair-weather cumulus clouds Aviation Weathefs forecast called cloud base 2000 3000 feet morning moving up 3000 4000 feet later day hoping cloud base 5000 6000 feet During late morning early afternoon number flights made reached 2000 feet Mound 200 pm finally got TG-3 up 3400 feet point TG-3 entered large cumulus let old bird fly cloud few seconds deployed spoilers down mm few seconds TG-3 reappeared driving out bottom cloud Conditions didnt get better day 3400 feet highest altitude recorded wasnt enough FAI World Record since AMA Continued page 108 November 198019 SIMIlAR WINS 1St PLACEPATTERN PRE-NOVICE 1979 WINTER NATS SIMIlAR NEW . SI MI TAR SIMIlAR SIMITAR SPORT SIMIlAR l9-40PowerS0lnehSpan Standard Kit Includes SIMITARPly Wing Sheeting Fuselage SIMIlARFoam Coress SIMITARGear Formed Sliding Tray SI MI TARFull Site Plans SIMITAR WINS 1st PLACENORTHROP FLYING WING CONTEST 1979 High Quality 1000 Cutton $ 95 Multi-color Silkscreen6 Sites 5 M L & XL Eleck Rider Yellow Plus $100 Astron Light Blue Shipping Similar 540 Tan Charge SFF YOUR DEALER OR ORDER ROM BILL EVANS 20825K ROSCOE BLVD CANOGA PARK CA 91306 / TEL 213 344-6391 OR 709-0894 tougher proposition achieve ment stability twin pushers day Charlie put dihedral canard surface added small vertical fin atop flew arrow straight Later upset pusher world winning big meets sensational tractors Incidentally timed early gas meet Tecterboro NJ 1933 34 Leo Weiss Frank Tlush Frank Ehling Charlie Grant Joe Kovel among perhaps dozen entrantsthe sky filled twinpusher rubber jobs climbed like javelins got time lone rubber modeler diamond fuselage tractor turned winning flight four-plus Hank Struck Charlie equally prominent full-scale aviation prolific inventor revolutionary designeryoull find him some history books about air racing devoted chapter him holds valuable patents always fighter won law suit against Martin 202 airlinerthey paid royalty hired him settlement deltas possi bly before world-famous Dr Lippisch ever thought segmented flap Charlies idea Nobody able solve riddle spinning flap Charlie has burnt enough keep secret him self answer lies mechanics 1910 Charlie jumping off roof tiny hang gliderhe weighed 100 pounds sopping wetand sailing out over slop ing meadow hundreds feet first air plane Vermont thinks tried first bike hit downhill bump un ceremoniously airborne about 35 feet ashes over teakettle picked gravel out empennage three weeks biggie model plane manu facturing before 1920 salesman Ritchie Wertz Dayton designs sold over $300000 yearly New York buyers company produced 1000 Minute Men day limited capacity propcarv ing machine invented employed 50 people shop moving production line little cars riding rails also mentioned cable initial small parts right through packaging stopwatched process Around 1920 learned reduce 50% weight increase painting 5% kits genuine flying machinesl milled cambered wings long balsa planks slicing off like bologna refrigeration room il chilled wood dipped wings diluted fish glue varnished finally painted yellow gook barely penetrated wood also own company Grant late Twenties threw Kinksbury Toys depression victim produce 2000 Silver Arrows day cambered silver-colored wings aluminum ribs hold shape blue twin sticks fuselage small aluminum U-shaped pieces re taining sticks allowing rubber pass 1927 flew 650 feet could buy over America secret sheep dip bluedyed casein glue Its weight increase 2% MAN saw fabled rubber de signs fine articles aerodynamics books now collectors items Charlie design team remarkable Dayton-Wright Racer soon after 1920 responsible both leading edge slats wing flaps60 years ago retract able gear Today can get Peanut kit Hank Struck Jetco Charlie driven illustri ous ancestors mad inventors great grandfather designed Governor DeWitt Clinton John Bull locomotives grand father installed propulsive machinery Monitor Charlie now has revolutionary windmill could affect energy pic turehis light years ahead modern ized Dutch windmills testy us says AMA doesnt something soon about kids hell start own organization loves boys airplane modeling boys camp mid-Twenties late Howard McEntee instructor people like 1935 Wakefield-winner Gordon Light Joe Kovel vacationers keep telling supercharged octegenarian age 68 cant join crusade write monumental man care AMA Head quarters challenge wits Hes demon phone Charlies new book Gateway Aero Science has over 300 pages loaded fine drawings great flying models Distrib uted Poiks available through Supply Service AMA HQ has already writ ten another prints markets things out pocket first class Fittingly initials CG CG Schweizer TG-3/Hiner Continued page 19 National Soaring Records zero AMA record set proves TG-3 will thermal stable can carry full-size baro graph TG-3 easy-to-build easy-to-fly Stand-Off Sport Scale Sailplane bit different average Scale job Because rules use compromised scale accuracy somewhat favor better flying characteristics have aware stopwatch landing tape fly Sport Scale Gliders fact 1979 LSF Tournament Scale birds flew duration also flew speed/distance task TG-3 real fun like building fuselage stringers give some considera tion have problems building TG 3 drop line 2213 Prentice Creek Apt 104 Downers Grove IL 60515 Iwili try help References Soaring May-June 1944 TG-3A Ernest Schweizer AIR TRAILS Spring t 979 Glider Factory Technical Order No 09-3OAB-2 Erection Main108 Model Aviation NEWT-SHIRTS BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 2 oz HOT STUFF XXc LINEE EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec 1/2 OZ jV HOT STUFF GAP FILLING HIGH VISCOSITY-TIMED BOND 10 25 sec Use like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD %ad9t Ca P 0 BOX 836 SIMI CA 93062 522-0062 tenance Instructions TG-3A Glider Schweizer Aircraft Corporation Drawings National Archives Photos Documentary Photography black white 1361 ST Photo Sqd 1221 South Fern St Arlington VA 22202 Omcial USAF photos sale write price list ordering instructions 21298AC Front View XTG-3 21294ACTow Plane XTG-3 Background 21157AC Side View XTG-3 21296ACXTG-3 Takeoff Bungee Cor4 June 1979 Paint TG hy Bob Storck Color Aircraft Yellow Blue Color Insignia White Red Blue Black F0R MRGUSI ent meantime have System Alert refuses buzz turn transmitter off give fix try System FS NODupont NoAlert works time works properly ith systems mod forget 15123 98013about 17875Not critical 111361865H48 15044 17038Not critical Radio Technique/Myers Continued page 23 quick check oscilloscope showed exactly what happening wouldnt need oscilloscope see 6 volt DC meter lOOK resistance would work well Just connect between negative lead black wire signal lead orange wire turn receiver turn transmitter off few times Sometimes voltmeter will read positive volts some times zero transmitter off point may thinking its simple didnt start measure ment cut out other stuff Two reasons 1 didnt think time 2 needed System Alert wiring diagram wanted make worthwhile changes Knowing problem solution ob vious added 001 mfd capacitor series System Alert green wire Vs watt 1 megohm resistor base input transistor ground Ive supplied sketch too capacitor passes pulses blocks DC resistor insures input transistor turns off So buzzer must sound optimum values just values worked Ed says will make change production may turn out differAnother fix some people may want know about following frame-time resistor early Ace RC Silver Seven trans mitter encoders 270K R2 just above NE5044 has changed production 330 K reason change increase frame time l8ms adequate 2 3 4 5-channel receivers 22ms necessary 6- 7-channel re ceivers Paul Edmunds Pauls Re Omaha NE discovered need change fix worked out Paul Holsten Ace RC Mr Edmunds good enough write tell about Tom Runge president Ace good enough write tell change has made production have early models either swap 33OKforthe27OKordowhatldidIputaS6K resistor series 270K provisions shorting out again should need arise As happens sons 4-channel Cannon system uses 16 millisecond frame transmitter receiver servos want fly flight packs Ill need 18 ms option Mismatched frame times can lead poor servo performance Its much easier retime transmitter go inside receiver servo re-time match transmitter beauty S7 its easy make whatever change need Frame time wondering what Im talking about time required complete set control pulses plus required reset pulse Theres sketch illus trating elsewhere column Since control pulse per channel U BOX 3957TORRANCE CA 90510 frame time also period required repe titions control pulse individual servo servo designed stretch its control pulse over full frame time transmitter designed work fore given servo may work poorly another manufacturers transmitter since new transmitter will have time either longer causing servo somewhat sloppy about staying its rest position shorter causing servo act jittery Figur ing out what frame time servo wants can subject another whole column now play mix-and-match various servos suspect frame-time problems dont ploy well together Nats takes over December issue no Radio Technique until next year See George M Myers 70 Froehlich Farm Road Hicks vOle NY 11801 Scale WC/Wischers Continued page 28 Thats international cooperation its finest third Canadian team member Karel Solnicka also radio problems round two flight fortunate Piper Twin Comanche splattered itself vertically onto runway completely destroyed static scoring F4C Precision Scale completed models flown third flying day gusty turbulent windswith threat rain contrasted lack wind enjoyed Standoff fliers previous two days Strong crosswinds encountered times three days F4C flights Seven 20 entries made no flights damaged during takeoff Highest flight score day made Frank Knowles Tiger Moth November 1980 109 9 HL GLIDERS flfl 3 SATELLITE KITS EEE 17OLDTIMEGAS Send 25 5 RUBBER 3 NORDIC 1980 catalog 9 COMPETIT ION GAS FUEL DTTIMERS -$1075 FAI Model Supply
Edition: Model Aviation - 1980/11
Page Numbers: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 108, 109
NO OCR TEXT NO OCR TEXT wood structure D-tube leading edge plywood Rudder elevator fitted trim tabs completed airframe fabric covered fuselage fitted single wheel nose skid TG-3s equipped radio navigation lights first TG-3s painted yellow over blue trim flash fuselage few TG-3s blue fuselages yellow wing tail surfaces National insignia applied both surfaces both wings consisting blue circle white star red ball center star rudder markings consisted vertical dark blue band forward portion 13 hori zontal red-and-white alternating stripes red first underside wings lettered U S right ARMY left middle 1942 overall color changed yellow silver Tests 1941 revealed yellow color reducing fabric life Although some photos silver gliders meatball insignia candy-striped tail deleted June 1942 feared markings could onfused Japanese Rising Sun same time new national insignia meatball added rear fuselage sides November 1942 US Army letter ing wing underside deleted brief times 1943 national insignia outlined red yellow unlikely gliders marked Later wing insignia applied upper right lower left wings horizontal white bars blue borders applied side national insignia As changes came late 1943 glider training project disbanded November very few photos exist configurations Color markings information obtained article June 1979 Bungee Cord Paint TG Bob Storek Bungee Cord fine newsletter put out Vintage Sailplane Association 6053 25th Rd N Arlington VA 22207 Any model builder interested old gliders should consider joining organization Back didnt use scale grass must real thing Scenes XTG-3 flight test program Wright Field 1942 look cars background careful look paint schemes reveals photos least two different airplanes onlythree XTG-3s built models paint scheme same lower picture issues Bungee Cord can obtained VSA Bob Storck VSAs archivist can provide VSA members information photos TG-series gliders end war surviving TG-3s sold surplus After war TG-3 credited setting holding US duration record extensive period number TG 3s still flying today Air Force Museum gathering information TG-3s 1975 restoration project hopefully TG-3 will some day display Also member Vintage Sailplane Association restoring TG-3 authentic training paint job TG-3 natural Stand-Off Sport Scale Its slab-sided stringered fuselage easy duplicate squared-off empen nage ship has no wing fillets struts worry about canopy simply built out flat sheets biggest advantage TG-3 modeling November 1980 1 3 Flight shots model See much improvementthere illusion reality putcrewfigures cockpit Jackdeparted scale wing dihedralhe put slight amount polyhedral starting point sharp taper-break wing planform hardly noticeable photos Pictures Dan Pruss John Czeszak men olan vviaon snows prelerreu meingo oi naming toe moueu ior iaunch must also keep tension thetow bridles tow ring will slip off either two wing-mounted towhooks right glider climbs out tow rope Note retrieval chute Jack has never tow problem some 200 flights using twin-bridle system wing geometry wing planform full-size prototype close used average sport RC glider TG-3 has aspect ratio 123-to-i relatively large dihedral 4 degrees per wing Also wing has constant-chord main panels moderate taper tip panels About thing missing polyhedral features add up RC model strong wing plenty area good stability excellent tow characteristics no nasty tip stalls TG-3 Construction Before beginning like cut out wing ribs fuselage bulkheads Make template fuselage keel Out 015 clearplastic sheetthis way dont have cut up plans Using template cut out keel Lite Ply After plywood wing ribs cut out holes drilled tubes use wing root rib template drill holes fuselage plywood wing mounting plates Now good time make up some leading edge material out spruce Dremels new table saw fine blade works well dont have access table saw taper spruce strips razor plane correct angle leading edges band saw can also used shape leading edge stock Wing Construction borrowed Aquila like build tip panels first complete plywood dihedral braces sure build washout very important easy-tofly glider Now block up tip panel per plans build main panel onto tip panel used aliphatic resin construction exception wing tubes plywood wing webs use slow-setting epoxy also use slowsetting epoxy glue spruce filler between wing tubes spar makes strong wing gives adequate wood attach tow hooks Also add a webs between end wing tubes next wing rib order 1 4 Model Aviation Nose ribs added duplicate appearance OS prototypes curved steel tube fuselage structure Like keel plywood An overall view nose structure wheel well plywood wing mounting plate show up well aft fuselage showing pushrod exit stabilizer mounting bolts closer lOOK lower tuselage construction Neat compact radio installation Servos rudder elevator spoilers center Antenna housed outer Nyrod tube epoxied side ne ar om tne spruce strip located Just below oetween tne pushrods screw eye used guide spoiler actuation lines turning 90 attach servo ILAI N /8 BALSA FLOOR /8 SIG LITE-PLY KEEL 1 & K /6 BALSA VERTICAL WEB -NOSE TO TAIL 1/8 PLYWXID FLOOR AND FORMERS BLOCKS AND HOOKS FOR3/16K 3/B316 DOWELBOWS LAMINATED JJBLE RUBBER BANDSSPRUCE STAYSROLL BARS ALL /8 X 3/4 SPRL2~ RAILS TO F-3 NOSE FORMERS 12 22 I/B SIG LITE-PLY ONE PIECE KEEL SEE ABOVE 1/16 \BALSA I/B BALSA F I/4SO\\\\ CROSS GR17~ PLYWOOD WEBS SPRUCE FRONTAND BACK Fl I/B PLYI/BPLYWOOTOTHIS BAY FORMERFORMERS RUBBER I/B X 3/4 SPRUCE LAMINATED FOR IDBLOCKS3 1/2 DU-BRO WHEEL ON MUSIC W BOLTS THRJ BLOCK FB 110 4 ALL INTO T -NUTSI/U SIG LITE PLY 1/4 50 SPRUCE STRINGERS NYLON TUBE DU-BRO 2-56 SOCIETSET THRU V2 mWELS 3/8 BALSA WEB ON I/2BALSA DECI F 3 I/B PLYWOCO 3A6 SO SPRUCE BENTTO KEEL 3/B 50BALSA 3/B K 1/2 50 BALSA 3/B BALSA SHEET VB SPRUCE ______________ I/B PLYWOOD LAMINATED 10 I/16PLYWOCO FOR WING MOUNT tI \ 090 MUSIC WIRE 3/32 BALSA STRUTS ON 3/32 WEBS 3/B K 1/2 BALSATIPS I/B X 1/4 SPRUCETE /4K 3/8 BALSA ALL RIBS 3/BX 1/2 RUcOER BASE I/BX 1/4 T E KRAFT SHORT HORN 3/BK 1/2 BALSATIPS SU-PR-UNE CLEVISlO HORN 3A6 SO SPRUCE OUlSIDE3/BBALSA NDSETOTAILIIOPONIYINSIDEALL FRAMING 1/4 K /2 BALSA LAMINATED KEEL 1/16K I/2SHrTETOPAND BOTlOM RODS INTO 250 10 BRASS FRONTONE IMBED IN SPRJCE 3/d K I/i BALSA SPOILER F84 DIAGONAL BRACE SAME AS SPAR 3/32 WEBS I/B PLYWOOD JOINER IN LE I/B PLYWOOD JONER PLATE FRONT AND BACK 1/16 BALSA WEBS FRONT AND BACK OF SRAR SOUD BALSA TIPS 1A6 K I/4CAP STRIrS TOPAND BOTIi I/8PLYwOOD TIP SKID 1/16 BALSA ALL RIBS1/16 SHEET lOPAND rroM L E 3A6 K 3/B SPRUCE SPAR 1OPANDBO1TOM I/4X 3/BBALSA LEDGE SOJCE 4x* SPRucR SECTION A-A1 RYPIcAL CROSSECTION SPORT PILOT SHOWN / F F OP MEHIR RROM* FLY FT2 NOTCUES FOR CO FORMER PRIM RPR OP BOTTOM MANE BOTH FROMj PAY BB3 DWBT P50 0 j 00 STROLL Sq SPRIHCA 4RQ SPRUCE RE5R TRIM TO FIT* PLY CANOPY PLODS A.PRO M MAST ER 50FFRRT USE IS ROTH CANOPY I-SEOMEOTS /jFTCFT 5 c-I F-ri WSRLUMINUM 1-- -1Fa ---7--F0FS 0 RBRR-TRIM TO PITB PRO M MASTER OUTLINEFB4 FBI RHEEBE FBS F3 KI restrain wing wires tubes cheated added small amount polydihedral taper break order get glider turn properly ailerons polydihedral could eliminated func tioning ailerons added would suggest coup ling rudder ailerons use about 30 degrees rudder throw small aileron deflection best results Another possibility try would coupled spoilers rudder together scale dihedral right turn would use right rudder right spoiler have tried other gliders works well Rub baby oil wing plan make paper transparent turn over plan build second half wing Tail surfaces much needs said about tail surfaces construction rather simple ItTs good idea make horizontal stabilizer removable fuselage transportation storage purposes cut taper rudder elevator ribs razor saw Cut little oversize dress down sanding block Use sheet metal screws attach control horns plywood mounts Fuselage Lay down three main longerons over plans pin place Allow bottom longeron extend rear former F3 Right left bottom longerons will later pulled together meet rear fuselage keel Add 1/16 balsa webbing longeron shown plans After glue dries remove plans mark position sides Fl F2 F3 Now add spruce strips inside fuselage sides leaving gaps formers Turn plans over rub baby oil build other side Glue formers Fl F2 F3 dry pull tail together glue Add bottom crossgrain sheeting Fl F3 Pull bottom longerons together meet rear keel Add cross-grain sheeting Add cross braces turtle-deck former position maintain correct width Add spruce strips bottom sheeting between Fl F3 front ofFi key keel Next glue turtledeck formers stringers Add stab mounting structure epoxying blind nuts mounting Glue keel former FTI Glue 1/16 balsa wheel-well followed i plywood wheel sides Add sub-bulkheads keel associated stringers Now add spruce tail post Add stringer rear keel tailpost Next add three vertical grained braces between bottom rear longeron box structure Fit add plywood plates wing mounting Make sure right left plates lined up accurately fore aft Now epoxy wing support tubes fuselage wings wires 1 6 Model Aviation IIcANOPYKuPOR-TII jJ9REIoIRsO ROD RUCE STRIPS sq LAMINATE FUY ANDjPLT FNT FORMER REQUIRED jRIBLITEFLY MARE ALL TR PORMERS EROM * SE * HII LORSTOS OP SPRUCE IRS O DUIRE SECTION B-B r T FULL-SIZE PLANS AVAILABLE . SEE PAGE 128 ICOECISEE F5FI7 MARSYUBA fl5 PROM F FTR 3 444 BALSA 00*005 SYR REESE MARS ALL C SULRI4EAOS FREESPLY SPRUCE j BALSA IBEPY FT7IOUR CORN Fre FT9 c C z r PUSASBOR Err 00100 IS BUILTQZE~ ly 30CM 0051St OSQBSC W hp 30GB WESt NERE hp 35CTION C-C PLY MOUNTING SIJPBUPS PROBUCTS 010015 ASSOUBLY rORO$OUEIO OCR j PLY place ensure proper alignment Glue balsa bottom wing tubes floor fuse Next add 12 Sig Lite-Ply nose ribs trim fit individually wheel added until fuselage covered After covering cut out wheel-well cut small hole covering order insert brass tubing wheel axle Place wheel well insert axle using dab epoxy keep axle backing out small covering patch over axle access hole completes step skid laminated two strips spruce Use slow-setting epoxy glue Mold curve aid jig made finishing nails nailed board Canopy Make a forms mold canopy bows around Laminate two strips 1/16 X spruce strips canopy bows Use slow-setting epoxy allow cure 24 hours Make November 1980 1 7 * BALSA * 044 SPRUCE 44 BALSA OSNOTES PREL OUTLINE * SI 1BALSA WEB Rear view spoilers shows typical Aquilatype linkage fine spring undertension return spoilers closed position VSET fl04405000PO ippP40 Ut W V7 -- 4-4 ri SMUtS 3-pPOiYUtPPOU F -I II-r76 aK F IIi ipo SECTION 0-0 o o - 3 0 44 05047 70 NOtE CflNG PIES t S AEt MOOS PROM PLO SECTION E-E SECTION F-F 10 II 4 S IT I0 POLYHEDRAL DOUBLER U RSI4IJIREO ft SALA Si plywood canopy base fore aft sections Glue forming bottom bases key canopy assembly accurately fuselage Epoxy instrument panel rear bulkhead canopy bases Notch canopy bases accept bows Epoxy bows base after trimming required length Epoxy hardwood dowels simulate roll-over structure full-size aircraft canopies left natural color aluminum Paint canopy frames silver epoxy after filling thinnedout Stuff Epoxy paint gives superior adhesion important servo mounting tape used attach pilots canopy base Add instru ment panel detailing desired point cluster instruments instructor riding back seat located roll-over cage Cut out canopy sections heavy sheet acetate rear canopy piece front canopy three pieces attached plastic canopy base 3M clear plastic tape Tape canopy side base rolling over bows tape other side base Wrap approximately -in tape around bottom canopy base ensure good adhesion front canopy section attach rear acetate piece first followed center section front section last way slipstream cant get under canopy sections during flight might otherwise rip off section Covering suggest using super MonoKote plans three-view drawing depict all-silver version easy route just cover air frame silver MonoKote cut tail numbers out black trim MonoKote Insignia also can made out blue white trim MonoKote go earlier yellow color scheme additional markings can made trim MonoKote Spray paint light blue fuselage flash epoxy paint after cleaning area painted thinner Trim tape used outline trim tabs ailerons dive brakes bottom wings Flying Now come fun part Dont worry about weight too much TG-3 weighed 7 pounds ready-to-fly plans show fore aft center-of-gravity CG posi tions Use forward position initial test flights continue using forward CG until feel comfortable launch have confidence glider As soon possible move aft center-of-gravity position glider will thermal better configuration aft CG TG-3 does beautiful spins have enough control surface movement like use spin lose altitude after working up max ship could just spiral down use spoilers dive TG-3 18 Model Aviation F I1ff FULL-SIZE PLANS AVAILABLE . SEE PAGE 128 YOP4 0tTOM 00150 000570405BALSA La TOP 4 BOrTOTA 101SPOOLS5000 TOP * BOTTOM i III 77- r V4IiI II _-t IIIII II IIIii Ii IIII I IIII IIII IIII III IIII IIIiiIS q LbIlls __nr ~iI 1OOftt flAW ASA 700 4001700 SOIM TOO TO JASHOIJT PIN DOWN $ 000041 INNER S a-ITO PLY 66 Ni 0007 BALSA 01005 cY SECTION GG 0005 010 twOtOi TIP OSlO 4 010 10 TUBE r t0i AT 040 5 40104046 501146 MOTIONS _ 4 _________ NTAL STABILIZ&R 0 THROB VIEW D353N1146 SCI4WEIZ&R rss SHEET ca looks neat spinning down few comments about launch technique First make up towing bridle approximately three feet long like use heavier line used winch Tie tow ring end two 3-ft lengths line Tie remaining end two lines large snap swiveL Using atowingbridle wing-mounted tow hooks have never towing problem approximately 200 flights first flight get someone assist launching preferably person has flown large glider such Sailair Astro Jeff Aquila XL will know much line tension required launch Let helper launch airplane concentrate operating winch flying Because fuselage size airfoil used TG-3 has lot drag lift-overdrag ratio nothing brag about Also sink rate higher average RC sport glider Due higher drag TG-3 does like tight circles thermalling keep circles lift bit larger normal added drag has advantage makes easy landings talk about drag might get impression TG-3 real turkey isnt lift TG-3 will go up fact early summer 1979 two flights over hour duration flat-land flying site help thermal sniffer end summer installed thermal sniffer built little larger wing order make altitude attempt National AMA RC Soaring Record FAI World Record Replogle barograph rode back seat Allup weight 10 pounds 14 ounces paperwork accomplished record try over Labor Day weekend Saturday Sunday weather did cooperate Monday better light winds scattered fair-weather cumulus clouds Aviation Weathefs forecast called cloud base 2000 3000 feet morning moving up 3000 4000 feet later day hoping cloud base 5000 6000 feet During late morning early afternoon number flights made reached 2000 feet Mound 200 pm finally got TG-3 up 3400 feet point TG-3 entered large cumulus let old bird fly cloud few seconds deployed spoilers down mm few seconds TG-3 reappeared driving out bottom cloud Conditions didnt get better day 3400 feet highest altitude recorded wasnt enough FAI World Record since AMA Continued page 108 November 198019 SIMIlAR WINS 1St PLACEPATTERN PRE-NOVICE 1979 WINTER NATS SIMIlAR NEW . SI MI TAR SIMIlAR SIMITAR SPORT SIMIlAR l9-40PowerS0lnehSpan Standard Kit Includes SIMITARPly Wing Sheeting Fuselage SIMIlARFoam Coress SIMITARGear Formed Sliding Tray SI MI TARFull Site Plans SIMITAR WINS 1st PLACENORTHROP FLYING WING CONTEST 1979 High Quality 1000 Cutton $ 95 Multi-color Silkscreen6 Sites 5 M L & XL Eleck Rider Yellow Plus $100 Astron Light Blue Shipping Similar 540 Tan Charge SFF YOUR DEALER OR ORDER ROM BILL EVANS 20825K ROSCOE BLVD CANOGA PARK CA 91306 / TEL 213 344-6391 OR 709-0894 tougher proposition achieve ment stability twin pushers day Charlie put dihedral canard surface added small vertical fin atop flew arrow straight Later upset pusher world winning big meets sensational tractors Incidentally timed early gas meet Tecterboro NJ 1933 34 Leo Weiss Frank Tlush Frank Ehling Charlie Grant Joe Kovel among perhaps dozen entrantsthe sky filled twinpusher rubber jobs climbed like javelins got time lone rubber modeler diamond fuselage tractor turned winning flight four-plus Hank Struck Charlie equally prominent full-scale aviation prolific inventor revolutionary designeryoull find him some history books about air racing devoted chapter him holds valuable patents always fighter won law suit against Martin 202 airlinerthey paid royalty hired him settlement deltas possi bly before world-famous Dr Lippisch ever thought segmented flap Charlies idea Nobody able solve riddle spinning flap Charlie has burnt enough keep secret him self answer lies mechanics 1910 Charlie jumping off roof tiny hang gliderhe weighed 100 pounds sopping wetand sailing out over slop ing meadow hundreds feet first air plane Vermont thinks tried first bike hit downhill bump un ceremoniously airborne about 35 feet ashes over teakettle picked gravel out empennage three weeks biggie model plane manu facturing before 1920 salesman Ritchie Wertz Dayton designs sold over $300000 yearly New York buyers company produced 1000 Minute Men day limited capacity propcarv ing machine invented employed 50 people shop moving production line little cars riding rails also mentioned cable initial small parts right through packaging stopwatched process Around 1920 learned reduce 50% weight increase painting 5% kits genuine flying machinesl milled cambered wings long balsa planks slicing off like bologna refrigeration room il chilled wood dipped wings diluted fish glue varnished finally painted yellow gook barely penetrated wood also own company Grant late Twenties threw Kinksbury Toys depression victim produce 2000 Silver Arrows day cambered silver-colored wings aluminum ribs hold shape blue twin sticks fuselage small aluminum U-shaped pieces re taining sticks allowing rubber pass 1927 flew 650 feet could buy over America secret sheep dip bluedyed casein glue Its weight increase 2% MAN saw fabled rubber de signs fine articles aerodynamics books now collectors items Charlie design team remarkable Dayton-Wright Racer soon after 1920 responsible both leading edge slats wing flaps60 years ago retract able gear Today can get Peanut kit Hank Struck Jetco Charlie driven illustri ous ancestors mad inventors great grandfather designed Governor DeWitt Clinton John Bull locomotives grand father installed propulsive machinery Monitor Charlie now has revolutionary windmill could affect energy pic turehis light years ahead modern ized Dutch windmills testy us says AMA doesnt something soon about kids hell start own organization loves boys airplane modeling boys camp mid-Twenties late Howard McEntee instructor people like 1935 Wakefield-winner Gordon Light Joe Kovel vacationers keep telling supercharged octegenarian age 68 cant join crusade write monumental man care AMA Head quarters challenge wits Hes demon phone Charlies new book Gateway Aero Science has over 300 pages loaded fine drawings great flying models Distrib uted Poiks available through Supply Service AMA HQ has already writ ten another prints markets things out pocket first class Fittingly initials CG CG Schweizer TG-3/Hiner Continued page 19 National Soaring Records zero AMA record set proves TG-3 will thermal stable can carry full-size baro graph TG-3 easy-to-build easy-to-fly Stand-Off Sport Scale Sailplane bit different average Scale job Because rules use compromised scale accuracy somewhat favor better flying characteristics have aware stopwatch landing tape fly Sport Scale Gliders fact 1979 LSF Tournament Scale birds flew duration also flew speed/distance task TG-3 real fun like building fuselage stringers give some considera tion have problems building TG 3 drop line 2213 Prentice Creek Apt 104 Downers Grove IL 60515 Iwili try help References Soaring May-June 1944 TG-3A Ernest Schweizer AIR TRAILS Spring t 979 Glider Factory Technical Order No 09-3OAB-2 Erection Main108 Model Aviation NEWT-SHIRTS BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 2 oz HOT STUFF XXc LINEE EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec 1/2 OZ jV HOT STUFF GAP FILLING HIGH VISCOSITY-TIMED BOND 10 25 sec Use like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD %ad9t Ca P 0 BOX 836 SIMI CA 93062 522-0062 tenance Instructions TG-3A Glider Schweizer Aircraft Corporation Drawings National Archives Photos Documentary Photography black white 1361 ST Photo Sqd 1221 South Fern St Arlington VA 22202 Omcial USAF photos sale write price list ordering instructions 21298AC Front View XTG-3 21294ACTow Plane XTG-3 Background 21157AC Side View XTG-3 21296ACXTG-3 Takeoff Bungee Cor4 June 1979 Paint TG hy Bob Storck Color Aircraft Yellow Blue Color Insignia White Red Blue Black F0R MRGUSI ent meantime have System Alert refuses buzz turn transmitter off give fix try System FS NODupont NoAlert works time works properly ith systems mod forget 15123 98013about 17875Not critical 111361865H48 15044 17038Not critical Radio Technique/Myers Continued page 23 quick check oscilloscope showed exactly what happening wouldnt need oscilloscope see 6 volt DC meter lOOK resistance would work well Just connect between negative lead black wire signal lead orange wire turn receiver turn transmitter off few times Sometimes voltmeter will read positive volts some times zero transmitter off point may thinking its simple didnt start measure ment cut out other stuff Two reasons 1 didnt think time 2 needed System Alert wiring diagram wanted make worthwhile changes Knowing problem solution ob vious added 001 mfd capacitor series System Alert green wire Vs watt 1 megohm resistor base input transistor ground Ive supplied sketch too capacitor passes pulses blocks DC resistor insures input transistor turns off So buzzer must sound optimum values just values worked Ed says will make change production may turn out differAnother fix some people may want know about following frame-time resistor early Ace RC Silver Seven trans mitter encoders 270K R2 just above NE5044 has changed production 330 K reason change increase frame time l8ms adequate 2 3 4 5-channel receivers 22ms necessary 6- 7-channel re ceivers Paul Edmunds Pauls Re Omaha NE discovered need change fix worked out Paul Holsten Ace RC Mr Edmunds good enough write tell about Tom Runge president Ace good enough write tell change has made production have early models either swap 33OKforthe27OKordowhatldidIputaS6K resistor series 270K provisions shorting out again should need arise As happens sons 4-channel Cannon system uses 16 millisecond frame transmitter receiver servos want fly flight packs Ill need 18 ms option Mismatched frame times can lead poor servo performance Its much easier retime transmitter go inside receiver servo re-time match transmitter beauty S7 its easy make whatever change need Frame time wondering what Im talking about time required complete set control pulses plus required reset pulse Theres sketch illus trating elsewhere column Since control pulse per channel U BOX 3957TORRANCE CA 90510 frame time also period required repe titions control pulse individual servo servo designed stretch its control pulse over full frame time transmitter designed work fore given servo may work poorly another manufacturers transmitter since new transmitter will have time either longer causing servo somewhat sloppy about staying its rest position shorter causing servo act jittery Figur ing out what frame time servo wants can subject another whole column now play mix-and-match various servos suspect frame-time problems dont ploy well together Nats takes over December issue no Radio Technique until next year See George M Myers 70 Froehlich Farm Road Hicks vOle NY 11801 Scale WC/Wischers Continued page 28 Thats international cooperation its finest third Canadian team member Karel Solnicka also radio problems round two flight fortunate Piper Twin Comanche splattered itself vertically onto runway completely destroyed static scoring F4C Precision Scale completed models flown third flying day gusty turbulent windswith threat rain contrasted lack wind enjoyed Standoff fliers previous two days Strong crosswinds encountered times three days F4C flights Seven 20 entries made no flights damaged during takeoff Highest flight score day made Frank Knowles Tiger Moth November 1980 109 9 HL GLIDERS flfl 3 SATELLITE KITS EEE 17OLDTIMEGAS Send 25 5 RUBBER 3 NORDIC 1980 catalog 9 COMPETIT ION GAS FUEL DTTIMERS -$1075 FAI Model Supply
Edition: Model Aviation - 1980/11
Page Numbers: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 108, 109
NO OCR TEXT NO OCR TEXT wood structure D-tube leading edge plywood Rudder elevator fitted trim tabs completed airframe fabric covered fuselage fitted single wheel nose skid TG-3s equipped radio navigation lights first TG-3s painted yellow over blue trim flash fuselage few TG-3s blue fuselages yellow wing tail surfaces National insignia applied both surfaces both wings consisting blue circle white star red ball center star rudder markings consisted vertical dark blue band forward portion 13 hori zontal red-and-white alternating stripes red first underside wings lettered U S right ARMY left middle 1942 overall color changed yellow silver Tests 1941 revealed yellow color reducing fabric life Although some photos silver gliders meatball insignia candy-striped tail deleted June 1942 feared markings could onfused Japanese Rising Sun same time new national insignia meatball added rear fuselage sides November 1942 US Army letter ing wing underside deleted brief times 1943 national insignia outlined red yellow unlikely gliders marked Later wing insignia applied upper right lower left wings horizontal white bars blue borders applied side national insignia As changes came late 1943 glider training project disbanded November very few photos exist configurations Color markings information obtained article June 1979 Bungee Cord Paint TG Bob Storek Bungee Cord fine newsletter put out Vintage Sailplane Association 6053 25th Rd N Arlington VA 22207 Any model builder interested old gliders should consider joining organization Back didnt use scale grass must real thing Scenes XTG-3 flight test program Wright Field 1942 look cars background careful look paint schemes reveals photos least two different airplanes onlythree XTG-3s built models paint scheme same lower picture issues Bungee Cord can obtained VSA Bob Storck VSAs archivist can provide VSA members information photos TG-series gliders end war surviving TG-3s sold surplus After war TG-3 credited setting holding US duration record extensive period number TG 3s still flying today Air Force Museum gathering information TG-3s 1975 restoration project hopefully TG-3 will some day display Also member Vintage Sailplane Association restoring TG-3 authentic training paint job TG-3 natural Stand-Off Sport Scale Its slab-sided stringered fuselage easy duplicate squared-off empen nage ship has no wing fillets struts worry about canopy simply built out flat sheets biggest advantage TG-3 modeling November 1980 1 3 Flight shots model See much improvementthere illusion reality putcrewfigures cockpit Jackdeparted scale wing dihedralhe put slight amount polyhedral starting point sharp taper-break wing planform hardly noticeable photos Pictures Dan Pruss John Czeszak men olan vviaon snows prelerreu meingo oi naming toe moueu ior iaunch must also keep tension thetow bridles tow ring will slip off either two wing-mounted towhooks right glider climbs out tow rope Note retrieval chute Jack has never tow problem some 200 flights using twin-bridle system wing geometry wing planform full-size prototype close used average sport RC glider TG-3 has aspect ratio 123-to-i relatively large dihedral 4 degrees per wing Also wing has constant-chord main panels moderate taper tip panels About thing missing polyhedral features add up RC model strong wing plenty area good stability excellent tow characteristics no nasty tip stalls TG-3 Construction Before beginning like cut out wing ribs fuselage bulkheads Make template fuselage keel Out 015 clearplastic sheetthis way dont have cut up plans Using template cut out keel Lite Ply After plywood wing ribs cut out holes drilled tubes use wing root rib template drill holes fuselage plywood wing mounting plates Now good time make up some leading edge material out spruce Dremels new table saw fine blade works well dont have access table saw taper spruce strips razor plane correct angle leading edges band saw can also used shape leading edge stock Wing Construction borrowed Aquila like build tip panels first complete plywood dihedral braces sure build washout very important easy-tofly glider Now block up tip panel per plans build main panel onto tip panel used aliphatic resin construction exception wing tubes plywood wing webs use slow-setting epoxy also use slowsetting epoxy glue spruce filler between wing tubes spar makes strong wing gives adequate wood attach tow hooks Also add a webs between end wing tubes next wing rib order 1 4 Model Aviation Nose ribs added duplicate appearance OS prototypes curved steel tube fuselage structure Like keel plywood An overall view nose structure wheel well plywood wing mounting plate show up well aft fuselage showing pushrod exit stabilizer mounting bolts closer lOOK lower tuselage construction Neat compact radio installation Servos rudder elevator spoilers center Antenna housed outer Nyrod tube epoxied side ne ar om tne spruce strip located Just below oetween tne pushrods screw eye used guide spoiler actuation lines turning 90 attach servo ILAI N /8 BALSA FLOOR /8 SIG LITE-PLY KEEL 1 & K /6 BALSA VERTICAL WEB -NOSE TO TAIL 1/8 PLYWXID FLOOR AND FORMERS BLOCKS AND HOOKS FOR3/16K 3/B316 DOWELBOWS LAMINATED JJBLE RUBBER BANDSSPRUCE STAYSROLL BARS ALL /8 X 3/4 SPRL2~ RAILS TO F-3 NOSE FORMERS 12 22 I/B SIG LITE-PLY ONE PIECE KEEL SEE ABOVE 1/16 \BALSA I/B BALSA F I/4SO\\\\ CROSS GR17~ PLYWOOD WEBS SPRUCE FRONTAND BACK Fl I/B PLYI/BPLYWOOTOTHIS BAY FORMERFORMERS RUBBER I/B X 3/4 SPRUCE LAMINATED FOR IDBLOCKS3 1/2 DU-BRO WHEEL ON MUSIC W BOLTS THRJ BLOCK FB 110 4 ALL INTO T -NUTSI/U SIG LITE PLY 1/4 50 SPRUCE STRINGERS NYLON TUBE DU-BRO 2-56 SOCIETSET THRU V2 mWELS 3/8 BALSA WEB ON I/2BALSA DECI F 3 I/B PLYWOCO 3A6 SO SPRUCE BENTTO KEEL 3/B 50BALSA 3/B K 1/2 50 BALSA 3/B BALSA SHEET VB SPRUCE ______________ I/B PLYWOOD LAMINATED 10 I/16PLYWOCO FOR WING MOUNT tI \ 090 MUSIC WIRE 3/32 BALSA STRUTS ON 3/32 WEBS 3/B K 1/2 BALSATIPS I/B X 1/4 SPRUCETE /4K 3/8 BALSA ALL RIBS 3/BX 1/2 RUcOER BASE I/BX 1/4 T E KRAFT SHORT HORN 3/BK 1/2 BALSATIPS SU-PR-UNE CLEVISlO HORN 3A6 SO SPRUCE OUlSIDE3/BBALSA NDSETOTAILIIOPONIYINSIDEALL FRAMING 1/4 K /2 BALSA LAMINATED KEEL 1/16K I/2SHrTETOPAND BOTlOM RODS INTO 250 10 BRASS FRONTONE IMBED IN SPRJCE 3/d K I/i BALSA SPOILER F84 DIAGONAL BRACE SAME AS SPAR 3/32 WEBS I/B PLYWOOD JOINER IN LE I/B PLYWOOD JONER PLATE FRONT AND BACK 1/16 BALSA WEBS FRONT AND BACK OF SRAR SOUD BALSA TIPS 1A6 K I/4CAP STRIrS TOPAND BOTIi I/8PLYwOOD TIP SKID 1/16 BALSA ALL RIBS1/16 SHEET lOPAND rroM L E 3A6 K 3/B SPRUCE SPAR 1OPANDBO1TOM I/4X 3/BBALSA LEDGE SOJCE 4x* SPRucR SECTION A-A1 RYPIcAL CROSSECTION SPORT PILOT SHOWN / F F OP MEHIR RROM* FLY FT2 NOTCUES FOR CO FORMER PRIM RPR OP BOTTOM MANE BOTH FROMj PAY BB3 DWBT P50 0 j 00 STROLL Sq SPRIHCA 4RQ SPRUCE RE5R TRIM TO FIT* PLY CANOPY PLODS A.PRO M MAST ER 50FFRRT USE IS ROTH CANOPY I-SEOMEOTS /jFTCFT 5 c-I F-ri WSRLUMINUM 1-- -1Fa ---7--F0FS 0 RBRR-TRIM TO PITB PRO M MASTER OUTLINEFB4 FBI RHEEBE FBS F3 KI restrain wing wires tubes cheated added small amount polydihedral taper break order get glider turn properly ailerons polydihedral could eliminated func tioning ailerons added would suggest coup ling rudder ailerons use about 30 degrees rudder throw small aileron deflection best results Another possibility try would coupled spoilers rudder together scale dihedral right turn would use right rudder right spoiler have tried other gliders works well Rub baby oil wing plan make paper transparent turn over plan build second half wing Tail surfaces much needs said about tail surfaces construction rather simple ItTs good idea make horizontal stabilizer removable fuselage transportation storage purposes cut taper rudder elevator ribs razor saw Cut little oversize dress down sanding block Use sheet metal screws attach control horns plywood mounts Fuselage Lay down three main longerons over plans pin place Allow bottom longeron extend rear former F3 Right left bottom longerons will later pulled together meet rear fuselage keel Add 1/16 balsa webbing longeron shown plans After glue dries remove plans mark position sides Fl F2 F3 Now add spruce strips inside fuselage sides leaving gaps formers Turn plans over rub baby oil build other side Glue formers Fl F2 F3 dry pull tail together glue Add bottom crossgrain sheeting Fl F3 Pull bottom longerons together meet rear keel Add cross-grain sheeting Add cross braces turtle-deck former position maintain correct width Add spruce strips bottom sheeting between Fl F3 front ofFi key keel Next glue turtledeck formers stringers Add stab mounting structure epoxying blind nuts mounting Glue keel former FTI Glue 1/16 balsa wheel-well followed i plywood wheel sides Add sub-bulkheads keel associated stringers Now add spruce tail post Add stringer rear keel tailpost Next add three vertical grained braces between bottom rear longeron box structure Fit add plywood plates wing mounting Make sure right left plates lined up accurately fore aft Now epoxy wing support tubes fuselage wings wires 1 6 Model Aviation IIcANOPYKuPOR-TII jJ9REIoIRsO ROD RUCE STRIPS sq LAMINATE FUY ANDjPLT FNT FORMER REQUIRED jRIBLITEFLY MARE ALL TR PORMERS EROM * SE * HII LORSTOS OP SPRUCE IRS O DUIRE SECTION B-B r T FULL-SIZE PLANS AVAILABLE . SEE PAGE 128 ICOECISEE F5FI7 MARSYUBA fl5 PROM F FTR 3 444 BALSA 00*005 SYR REESE MARS ALL C SULRI4EAOS FREESPLY SPRUCE j BALSA IBEPY FT7IOUR CORN Fre FT9 c C z r PUSASBOR Err 00100 IS BUILTQZE~ ly 30CM 0051St OSQBSC W hp 30GB WESt NERE hp 35CTION C-C PLY MOUNTING SIJPBUPS PROBUCTS 010015 ASSOUBLY rORO$OUEIO OCR j PLY place ensure proper alignment Glue balsa bottom wing tubes floor fuse Next add 12 Sig Lite-Ply nose ribs trim fit individually wheel added until fuselage covered After covering cut out wheel-well cut small hole covering order insert brass tubing wheel axle Place wheel well insert axle using dab epoxy keep axle backing out small covering patch over axle access hole completes step skid laminated two strips spruce Use slow-setting epoxy glue Mold curve aid jig made finishing nails nailed board Canopy Make a forms mold canopy bows around Laminate two strips 1/16 X spruce strips canopy bows Use slow-setting epoxy allow cure 24 hours Make November 1980 1 7 * BALSA * 044 SPRUCE 44 BALSA OSNOTES PREL OUTLINE * SI 1BALSA WEB Rear view spoilers shows typical Aquilatype linkage fine spring undertension return spoilers closed position VSET fl04405000PO ippP40 Ut W V7 -- 4-4 ri SMUtS 3-pPOiYUtPPOU F -I II-r76 aK F IIi ipo SECTION 0-0 o o - 3 0 44 05047 70 NOtE CflNG PIES t S AEt MOOS PROM PLO SECTION E-E SECTION F-F 10 II 4 S IT I0 POLYHEDRAL DOUBLER U RSI4IJIREO ft SALA Si plywood canopy base fore aft sections Glue forming bottom bases key canopy assembly accurately fuselage Epoxy instrument panel rear bulkhead canopy bases Notch canopy bases accept bows Epoxy bows base after trimming required length Epoxy hardwood dowels simulate roll-over structure full-size aircraft canopies left natural color aluminum Paint canopy frames silver epoxy after filling thinnedout Stuff Epoxy paint gives superior adhesion important servo mounting tape used attach pilots canopy base Add instru ment panel detailing desired point cluster instruments instructor riding back seat located roll-over cage Cut out canopy sections heavy sheet acetate rear canopy piece front canopy three pieces attached plastic canopy base 3M clear plastic tape Tape canopy side base rolling over bows tape other side base Wrap approximately -in tape around bottom canopy base ensure good adhesion front canopy section attach rear acetate piece first followed center section front section last way slipstream cant get under canopy sections during flight might otherwise rip off section Covering suggest using super MonoKote plans three-view drawing depict all-silver version easy route just cover air frame silver MonoKote cut tail numbers out black trim MonoKote Insignia also can made out blue white trim MonoKote go earlier yellow color scheme additional markings can made trim MonoKote Spray paint light blue fuselage flash epoxy paint after cleaning area painted thinner Trim tape used outline trim tabs ailerons dive brakes bottom wings Flying Now come fun part Dont worry about weight too much TG-3 weighed 7 pounds ready-to-fly plans show fore aft center-of-gravity CG posi tions Use forward position initial test flights continue using forward CG until feel comfortable launch have confidence glider As soon possible move aft center-of-gravity position glider will thermal better configuration aft CG TG-3 does beautiful spins have enough control surface movement like use spin lose altitude after working up max ship could just spiral down use spoilers dive TG-3 18 Model Aviation F I1ff FULL-SIZE PLANS AVAILABLE . SEE PAGE 128 YOP4 0tTOM 00150 000570405BALSA La TOP 4 BOrTOTA 101SPOOLS5000 TOP * BOTTOM i III 77- r V4IiI II _-t IIIII II IIIii Ii IIII I IIII IIII IIII III IIII IIIiiIS q LbIlls __nr ~iI 1OOftt flAW ASA 700 4001700 SOIM TOO TO JASHOIJT PIN DOWN $ 000041 INNER S a-ITO PLY 66 Ni 0007 BALSA 01005 cY SECTION GG 0005 010 twOtOi TIP OSlO 4 010 10 TUBE r t0i AT 040 5 40104046 501146 MOTIONS _ 4 _________ NTAL STABILIZ&R 0 THROB VIEW D353N1146 SCI4WEIZ&R rss SHEET ca looks neat spinning down few comments about launch technique First make up towing bridle approximately three feet long like use heavier line used winch Tie tow ring end two 3-ft lengths line Tie remaining end two lines large snap swiveL Using atowingbridle wing-mounted tow hooks have never towing problem approximately 200 flights first flight get someone assist launching preferably person has flown large glider such Sailair Astro Jeff Aquila XL will know much line tension required launch Let helper launch airplane concentrate operating winch flying Because fuselage size airfoil used TG-3 has lot drag lift-overdrag ratio nothing brag about Also sink rate higher average RC sport glider Due higher drag TG-3 does like tight circles thermalling keep circles lift bit larger normal added drag has advantage makes easy landings talk about drag might get impression TG-3 real turkey isnt lift TG-3 will go up fact early summer 1979 two flights over hour duration flat-land flying site help thermal sniffer end summer installed thermal sniffer built little larger wing order make altitude attempt National AMA RC Soaring Record FAI World Record Replogle barograph rode back seat Allup weight 10 pounds 14 ounces paperwork accomplished record try over Labor Day weekend Saturday Sunday weather did cooperate Monday better light winds scattered fair-weather cumulus clouds Aviation Weathefs forecast called cloud base 2000 3000 feet morning moving up 3000 4000 feet later day hoping cloud base 5000 6000 feet During late morning early afternoon number flights made reached 2000 feet Mound 200 pm finally got TG-3 up 3400 feet point TG-3 entered large cumulus let old bird fly cloud few seconds deployed spoilers down mm few seconds TG-3 reappeared driving out bottom cloud Conditions didnt get better day 3400 feet highest altitude recorded wasnt enough FAI World Record since AMA Continued page 108 November 198019 SIMIlAR WINS 1St PLACEPATTERN PRE-NOVICE 1979 WINTER NATS SIMIlAR NEW . SI MI TAR SIMIlAR SIMITAR SPORT SIMIlAR l9-40PowerS0lnehSpan Standard Kit Includes SIMITARPly Wing Sheeting Fuselage SIMIlARFoam Coress SIMITARGear Formed Sliding Tray SI MI TARFull Site Plans SIMITAR WINS 1st PLACENORTHROP FLYING WING CONTEST 1979 High Quality 1000 Cutton $ 95 Multi-color Silkscreen6 Sites 5 M L & XL Eleck Rider Yellow Plus $100 Astron Light Blue Shipping Similar 540 Tan Charge SFF YOUR DEALER OR ORDER ROM BILL EVANS 20825K ROSCOE BLVD CANOGA PARK CA 91306 / TEL 213 344-6391 OR 709-0894 tougher proposition achieve ment stability twin pushers day Charlie put dihedral canard surface added small vertical fin atop flew arrow straight Later upset pusher world winning big meets sensational tractors Incidentally timed early gas meet Tecterboro NJ 1933 34 Leo Weiss Frank Tlush Frank Ehling Charlie Grant Joe Kovel among perhaps dozen entrantsthe sky filled twinpusher rubber jobs climbed like javelins got time lone rubber modeler diamond fuselage tractor turned winning flight four-plus Hank Struck Charlie equally prominent full-scale aviation prolific inventor revolutionary designeryoull find him some history books about air racing devoted chapter him holds valuable patents always fighter won law suit against Martin 202 airlinerthey paid royalty hired him settlement deltas possi bly before world-famous Dr Lippisch ever thought segmented flap Charlies idea Nobody able solve riddle spinning flap Charlie has burnt enough keep secret him self answer lies mechanics 1910 Charlie jumping off roof tiny hang gliderhe weighed 100 pounds sopping wetand sailing out over slop ing meadow hundreds feet first air plane Vermont thinks tried first bike hit downhill bump un ceremoniously airborne about 35 feet ashes over teakettle picked gravel out empennage three weeks biggie model plane manu facturing before 1920 salesman Ritchie Wertz Dayton designs sold over $300000 yearly New York buyers company produced 1000 Minute Men day limited capacity propcarv ing machine invented employed 50 people shop moving production line little cars riding rails also mentioned cable initial small parts right through packaging stopwatched process Around 1920 learned reduce 50% weight increase painting 5% kits genuine flying machinesl milled cambered wings long balsa planks slicing off like bologna refrigeration room il chilled wood dipped wings diluted fish glue varnished finally painted yellow gook barely penetrated wood also own company Grant late Twenties threw Kinksbury Toys depression victim produce 2000 Silver Arrows day cambered silver-colored wings aluminum ribs hold shape blue twin sticks fuselage small aluminum U-shaped pieces re taining sticks allowing rubber pass 1927 flew 650 feet could buy over America secret sheep dip bluedyed casein glue Its weight increase 2% MAN saw fabled rubber de signs fine articles aerodynamics books now collectors items Charlie design team remarkable Dayton-Wright Racer soon after 1920 responsible both leading edge slats wing flaps60 years ago retract able gear Today can get Peanut kit Hank Struck Jetco Charlie driven illustri ous ancestors mad inventors great grandfather designed Governor DeWitt Clinton John Bull locomotives grand father installed propulsive machinery Monitor Charlie now has revolutionary windmill could affect energy pic turehis light years ahead modern ized Dutch windmills testy us says AMA doesnt something soon about kids hell start own organization loves boys airplane modeling boys camp mid-Twenties late Howard McEntee instructor people like 1935 Wakefield-winner Gordon Light Joe Kovel vacationers keep telling supercharged octegenarian age 68 cant join crusade write monumental man care AMA Head quarters challenge wits Hes demon phone Charlies new book Gateway Aero Science has over 300 pages loaded fine drawings great flying models Distrib uted Poiks available through Supply Service AMA HQ has already writ ten another prints markets things out pocket first class Fittingly initials CG CG Schweizer TG-3/Hiner Continued page 19 National Soaring Records zero AMA record set proves TG-3 will thermal stable can carry full-size baro graph TG-3 easy-to-build easy-to-fly Stand-Off Sport Scale Sailplane bit different average Scale job Because rules use compromised scale accuracy somewhat favor better flying characteristics have aware stopwatch landing tape fly Sport Scale Gliders fact 1979 LSF Tournament Scale birds flew duration also flew speed/distance task TG-3 real fun like building fuselage stringers give some considera tion have problems building TG 3 drop line 2213 Prentice Creek Apt 104 Downers Grove IL 60515 Iwili try help References Soaring May-June 1944 TG-3A Ernest Schweizer AIR TRAILS Spring t 979 Glider Factory Technical Order No 09-3OAB-2 Erection Main108 Model Aviation NEWT-SHIRTS BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 2 oz HOT STUFF XXc LINEE EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec 1/2 OZ jV HOT STUFF GAP FILLING HIGH VISCOSITY-TIMED BOND 10 25 sec Use like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD %ad9t Ca P 0 BOX 836 SIMI CA 93062 522-0062 tenance Instructions TG-3A Glider Schweizer Aircraft Corporation Drawings National Archives Photos Documentary Photography black white 1361 ST Photo Sqd 1221 South Fern St Arlington VA 22202 Omcial USAF photos sale write price list ordering instructions 21298AC Front View XTG-3 21294ACTow Plane XTG-3 Background 21157AC Side View XTG-3 21296ACXTG-3 Takeoff Bungee Cor4 June 1979 Paint TG hy Bob Storck Color Aircraft Yellow Blue Color Insignia White Red Blue Black F0R MRGUSI ent meantime have System Alert refuses buzz turn transmitter off give fix try System FS NODupont NoAlert works time works properly ith systems mod forget 15123 98013about 17875Not critical 111361865H48 15044 17038Not critical Radio Technique/Myers Continued page 23 quick check oscilloscope showed exactly what happening wouldnt need oscilloscope see 6 volt DC meter lOOK resistance would work well Just connect between negative lead black wire signal lead orange wire turn receiver turn transmitter off few times Sometimes voltmeter will read positive volts some times zero transmitter off point may thinking its simple didnt start measure ment cut out other stuff Two reasons 1 didnt think time 2 needed System Alert wiring diagram wanted make worthwhile changes Knowing problem solution ob vious added 001 mfd capacitor series System Alert green wire Vs watt 1 megohm resistor base input transistor ground Ive supplied sketch too capacitor passes pulses blocks DC resistor insures input transistor turns off So buzzer must sound optimum values just values worked Ed says will make change production may turn out differAnother fix some people may want know about following frame-time resistor early Ace RC Silver Seven trans mitter encoders 270K R2 just above NE5044 has changed production 330 K reason change increase frame time l8ms adequate 2 3 4 5-channel receivers 22ms necessary 6- 7-channel re ceivers Paul Edmunds Pauls Re Omaha NE discovered need change fix worked out Paul Holsten Ace RC Mr Edmunds good enough write tell about Tom Runge president Ace good enough write tell change has made production have early models either swap 33OKforthe27OKordowhatldidIputaS6K resistor series 270K provisions shorting out again should need arise As happens sons 4-channel Cannon system uses 16 millisecond frame transmitter receiver servos want fly flight packs Ill need 18 ms option Mismatched frame times can lead poor servo performance Its much easier retime transmitter go inside receiver servo re-time match transmitter beauty S7 its easy make whatever change need Frame time wondering what Im talking about time required complete set control pulses plus required reset pulse Theres sketch illus trating elsewhere column Since control pulse per channel U BOX 3957TORRANCE CA 90510 frame time also period required repe titions control pulse individual servo servo designed stretch its control pulse over full frame time transmitter designed work fore given servo may work poorly another manufacturers transmitter since new transmitter will have time either longer causing servo somewhat sloppy about staying its rest position shorter causing servo act jittery Figur ing out what frame time servo wants can subject another whole column now play mix-and-match various servos suspect frame-time problems dont ploy well together Nats takes over December issue no Radio Technique until next year See George M Myers 70 Froehlich Farm Road Hicks vOle NY 11801 Scale WC/Wischers Continued page 28 Thats international cooperation its finest third Canadian team member Karel Solnicka also radio problems round two flight fortunate Piper Twin Comanche splattered itself vertically onto runway completely destroyed static scoring F4C Precision Scale completed models flown third flying day gusty turbulent windswith threat rain contrasted lack wind enjoyed Standoff fliers previous two days Strong crosswinds encountered times three days F4C flights Seven 20 entries made no flights damaged during takeoff Highest flight score day made Frank Knowles Tiger Moth November 1980 109 9 HL GLIDERS flfl 3 SATELLITE KITS EEE 17OLDTIMEGAS Send 25 5 RUBBER 3 NORDIC 1980 catalog 9 COMPETIT ION GAS FUEL DTTIMERS -$1075 FAI Model Supply
Edition: Model Aviation - 1980/11
Page Numbers: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 108, 109
NO OCR TEXT NO OCR TEXT wood structure D-tube leading edge plywood Rudder elevator fitted trim tabs completed airframe fabric covered fuselage fitted single wheel nose skid TG-3s equipped radio navigation lights first TG-3s painted yellow over blue trim flash fuselage few TG-3s blue fuselages yellow wing tail surfaces National insignia applied both surfaces both wings consisting blue circle white star red ball center star rudder markings consisted vertical dark blue band forward portion 13 hori zontal red-and-white alternating stripes red first underside wings lettered U S right ARMY left middle 1942 overall color changed yellow silver Tests 1941 revealed yellow color reducing fabric life Although some photos silver gliders meatball insignia candy-striped tail deleted June 1942 feared markings could onfused Japanese Rising Sun same time new national insignia meatball added rear fuselage sides November 1942 US Army letter ing wing underside deleted brief times 1943 national insignia outlined red yellow unlikely gliders marked Later wing insignia applied upper right lower left wings horizontal white bars blue borders applied side national insignia As changes came late 1943 glider training project disbanded November very few photos exist configurations Color markings information obtained article June 1979 Bungee Cord Paint TG Bob Storek Bungee Cord fine newsletter put out Vintage Sailplane Association 6053 25th Rd N Arlington VA 22207 Any model builder interested old gliders should consider joining organization Back didnt use scale grass must real thing Scenes XTG-3 flight test program Wright Field 1942 look cars background careful look paint schemes reveals photos least two different airplanes onlythree XTG-3s built models paint scheme same lower picture issues Bungee Cord can obtained VSA Bob Storck VSAs archivist can provide VSA members information photos TG-series gliders end war surviving TG-3s sold surplus After war TG-3 credited setting holding US duration record extensive period number TG 3s still flying today Air Force Museum gathering information TG-3s 1975 restoration project hopefully TG-3 will some day display Also member Vintage Sailplane Association restoring TG-3 authentic training paint job TG-3 natural Stand-Off Sport Scale Its slab-sided stringered fuselage easy duplicate squared-off empen nage ship has no wing fillets struts worry about canopy simply built out flat sheets biggest advantage TG-3 modeling November 1980 1 3 Flight shots model See much improvementthere illusion reality putcrewfigures cockpit Jackdeparted scale wing dihedralhe put slight amount polyhedral starting point sharp taper-break wing planform hardly noticeable photos Pictures Dan Pruss John Czeszak men olan vviaon snows prelerreu meingo oi naming toe moueu ior iaunch must also keep tension thetow bridles tow ring will slip off either two wing-mounted towhooks right glider climbs out tow rope Note retrieval chute Jack has never tow problem some 200 flights using twin-bridle system wing geometry wing planform full-size prototype close used average sport RC glider TG-3 has aspect ratio 123-to-i relatively large dihedral 4 degrees per wing Also wing has constant-chord main panels moderate taper tip panels About thing missing polyhedral features add up RC model strong wing plenty area good stability excellent tow characteristics no nasty tip stalls TG-3 Construction Before beginning like cut out wing ribs fuselage bulkheads Make template fuselage keel Out 015 clearplastic sheetthis way dont have cut up plans Using template cut out keel Lite Ply After plywood wing ribs cut out holes drilled tubes use wing root rib template drill holes fuselage plywood wing mounting plates Now good time make up some leading edge material out spruce Dremels new table saw fine blade works well dont have access table saw taper spruce strips razor plane correct angle leading edges band saw can also used shape leading edge stock Wing Construction borrowed Aquila like build tip panels first complete plywood dihedral braces sure build washout very important easy-tofly glider Now block up tip panel per plans build main panel onto tip panel used aliphatic resin construction exception wing tubes plywood wing webs use slow-setting epoxy also use slowsetting epoxy glue spruce filler between wing tubes spar makes strong wing gives adequate wood attach tow hooks Also add a webs between end wing tubes next wing rib order 1 4 Model Aviation Nose ribs added duplicate appearance OS prototypes curved steel tube fuselage structure Like keel plywood An overall view nose structure wheel well plywood wing mounting plate show up well aft fuselage showing pushrod exit stabilizer mounting bolts closer lOOK lower tuselage construction Neat compact radio installation Servos rudder elevator spoilers center Antenna housed outer Nyrod tube epoxied side ne ar om tne spruce strip located Just below oetween tne pushrods screw eye used guide spoiler actuation lines turning 90 attach servo ILAI N /8 BALSA FLOOR /8 SIG LITE-PLY KEEL 1 & K /6 BALSA VERTICAL WEB -NOSE TO TAIL 1/8 PLYWXID FLOOR AND FORMERS BLOCKS AND HOOKS FOR3/16K 3/B316 DOWELBOWS LAMINATED JJBLE RUBBER BANDSSPRUCE STAYSROLL BARS ALL /8 X 3/4 SPRL2~ RAILS TO F-3 NOSE FORMERS 12 22 I/B SIG LITE-PLY ONE PIECE KEEL SEE ABOVE 1/16 \BALSA I/B BALSA F I/4SO\\\\ CROSS GR17~ PLYWOOD WEBS SPRUCE FRONTAND BACK Fl I/B PLYI/BPLYWOOTOTHIS BAY FORMERFORMERS RUBBER I/B X 3/4 SPRUCE LAMINATED FOR IDBLOCKS3 1/2 DU-BRO WHEEL ON MUSIC W BOLTS THRJ BLOCK FB 110 4 ALL INTO T -NUTSI/U SIG LITE PLY 1/4 50 SPRUCE STRINGERS NYLON TUBE DU-BRO 2-56 SOCIETSET THRU V2 mWELS 3/8 BALSA WEB ON I/2BALSA DECI F 3 I/B PLYWOCO 3A6 SO SPRUCE BENTTO KEEL 3/B 50BALSA 3/B K 1/2 50 BALSA 3/B BALSA SHEET VB SPRUCE ______________ I/B PLYWOOD LAMINATED 10 I/16PLYWOCO FOR WING MOUNT tI \ 090 MUSIC WIRE 3/32 BALSA STRUTS ON 3/32 WEBS 3/B K 1/2 BALSATIPS I/B X 1/4 SPRUCETE /4K 3/8 BALSA ALL RIBS 3/BX 1/2 RUcOER BASE I/BX 1/4 T E KRAFT SHORT HORN 3/BK 1/2 BALSATIPS SU-PR-UNE CLEVISlO HORN 3A6 SO SPRUCE OUlSIDE3/BBALSA NDSETOTAILIIOPONIYINSIDEALL FRAMING 1/4 K /2 BALSA LAMINATED KEEL 1/16K I/2SHrTETOPAND BOTlOM RODS INTO 250 10 BRASS FRONTONE IMBED IN SPRJCE 3/d K I/i BALSA SPOILER F84 DIAGONAL BRACE SAME AS SPAR 3/32 WEBS I/B PLYWOOD JOINER IN LE I/B PLYWOOD JONER PLATE FRONT AND BACK 1/16 BALSA WEBS FRONT AND BACK OF SRAR SOUD BALSA TIPS 1A6 K I/4CAP STRIrS TOPAND BOTIi I/8PLYwOOD TIP SKID 1/16 BALSA ALL RIBS1/16 SHEET lOPAND rroM L E 3A6 K 3/B SPRUCE SPAR 1OPANDBO1TOM I/4X 3/BBALSA LEDGE SOJCE 4x* SPRucR SECTION A-A1 RYPIcAL CROSSECTION SPORT PILOT SHOWN / F F OP MEHIR RROM* FLY FT2 NOTCUES FOR CO FORMER PRIM RPR OP BOTTOM MANE BOTH FROMj PAY BB3 DWBT P50 0 j 00 STROLL Sq SPRIHCA 4RQ SPRUCE RE5R TRIM TO FIT* PLY CANOPY PLODS A.PRO M MAST ER 50FFRRT USE IS ROTH CANOPY I-SEOMEOTS /jFTCFT 5 c-I F-ri WSRLUMINUM 1-- -1Fa ---7--F0FS 0 RBRR-TRIM TO PITB PRO M MASTER OUTLINEFB4 FBI RHEEBE FBS F3 KI restrain wing wires tubes cheated added small amount polydihedral taper break order get glider turn properly ailerons polydihedral could eliminated func tioning ailerons added would suggest coup ling rudder ailerons use about 30 degrees rudder throw small aileron deflection best results Another possibility try would coupled spoilers rudder together scale dihedral right turn would use right rudder right spoiler have tried other gliders works well Rub baby oil wing plan make paper transparent turn over plan build second half wing Tail surfaces much needs said about tail surfaces construction rather simple ItTs good idea make horizontal stabilizer removable fuselage transportation storage purposes cut taper rudder elevator ribs razor saw Cut little oversize dress down sanding block Use sheet metal screws attach control horns plywood mounts Fuselage Lay down three main longerons over plans pin place Allow bottom longeron extend rear former F3 Right left bottom longerons will later pulled together meet rear fuselage keel Add 1/16 balsa webbing longeron shown plans After glue dries remove plans mark position sides Fl F2 F3 Now add spruce strips inside fuselage sides leaving gaps formers Turn plans over rub baby oil build other side Glue formers Fl F2 F3 dry pull tail together glue Add bottom crossgrain sheeting Fl F3 Pull bottom longerons together meet rear keel Add cross-grain sheeting Add cross braces turtle-deck former position maintain correct width Add spruce strips bottom sheeting between Fl F3 front ofFi key keel Next glue turtledeck formers stringers Add stab mounting structure epoxying blind nuts mounting Glue keel former FTI Glue 1/16 balsa wheel-well followed i plywood wheel sides Add sub-bulkheads keel associated stringers Now add spruce tail post Add stringer rear keel tailpost Next add three vertical grained braces between bottom rear longeron box structure Fit add plywood plates wing mounting Make sure right left plates lined up accurately fore aft Now epoxy wing support tubes fuselage wings wires 1 6 Model Aviation IIcANOPYKuPOR-TII jJ9REIoIRsO ROD RUCE STRIPS sq LAMINATE FUY ANDjPLT FNT FORMER REQUIRED jRIBLITEFLY MARE ALL TR PORMERS EROM * SE * HII LORSTOS OP SPRUCE IRS O DUIRE SECTION B-B r T FULL-SIZE PLANS AVAILABLE . SEE PAGE 128 ICOECISEE F5FI7 MARSYUBA fl5 PROM F FTR 3 444 BALSA 00*005 SYR REESE MARS ALL C SULRI4EAOS FREESPLY SPRUCE j BALSA IBEPY FT7IOUR CORN Fre FT9 c C z r PUSASBOR Err 00100 IS BUILTQZE~ ly 30CM 0051St OSQBSC W hp 30GB WESt NERE hp 35CTION C-C PLY MOUNTING SIJPBUPS PROBUCTS 010015 ASSOUBLY rORO$OUEIO OCR j PLY place ensure proper alignment Glue balsa bottom wing tubes floor fuse Next add 12 Sig Lite-Ply nose ribs trim fit individually wheel added until fuselage covered After covering cut out wheel-well cut small hole covering order insert brass tubing wheel axle Place wheel well insert axle using dab epoxy keep axle backing out small covering patch over axle access hole completes step skid laminated two strips spruce Use slow-setting epoxy glue Mold curve aid jig made finishing nails nailed board Canopy Make a forms mold canopy bows around Laminate two strips 1/16 X spruce strips canopy bows Use slow-setting epoxy allow cure 24 hours Make November 1980 1 7 * BALSA * 044 SPRUCE 44 BALSA OSNOTES PREL OUTLINE * SI 1BALSA WEB Rear view spoilers shows typical Aquilatype linkage fine spring undertension return spoilers closed position VSET fl04405000PO ippP40 Ut W V7 -- 4-4 ri SMUtS 3-pPOiYUtPPOU F -I II-r76 aK F IIi ipo SECTION 0-0 o o - 3 0 44 05047 70 NOtE CflNG PIES t S AEt MOOS PROM PLO SECTION E-E SECTION F-F 10 II 4 S IT I0 POLYHEDRAL DOUBLER U RSI4IJIREO ft SALA Si plywood canopy base fore aft sections Glue forming bottom bases key canopy assembly accurately fuselage Epoxy instrument panel rear bulkhead canopy bases Notch canopy bases accept bows Epoxy bows base after trimming required length Epoxy hardwood dowels simulate roll-over structure full-size aircraft canopies left natural color aluminum Paint canopy frames silver epoxy after filling thinnedout Stuff Epoxy paint gives superior adhesion important servo mounting tape used attach pilots canopy base Add instru ment panel detailing desired point cluster instruments instructor riding back seat located roll-over cage Cut out canopy sections heavy sheet acetate rear canopy piece front canopy three pieces attached plastic canopy base 3M clear plastic tape Tape canopy side base rolling over bows tape other side base Wrap approximately -in tape around bottom canopy base ensure good adhesion front canopy section attach rear acetate piece first followed center section front section last way slipstream cant get under canopy sections during flight might otherwise rip off section Covering suggest using super MonoKote plans three-view drawing depict all-silver version easy route just cover air frame silver MonoKote cut tail numbers out black trim MonoKote Insignia also can made out blue white trim MonoKote go earlier yellow color scheme additional markings can made trim MonoKote Spray paint light blue fuselage flash epoxy paint after cleaning area painted thinner Trim tape used outline trim tabs ailerons dive brakes bottom wings Flying Now come fun part Dont worry about weight too much TG-3 weighed 7 pounds ready-to-fly plans show fore aft center-of-gravity CG posi tions Use forward position initial test flights continue using forward CG until feel comfortable launch have confidence glider As soon possible move aft center-of-gravity position glider will thermal better configuration aft CG TG-3 does beautiful spins have enough control surface movement like use spin lose altitude after working up max ship could just spiral down use spoilers dive TG-3 18 Model Aviation F I1ff FULL-SIZE PLANS AVAILABLE . SEE PAGE 128 YOP4 0tTOM 00150 000570405BALSA La TOP 4 BOrTOTA 101SPOOLS5000 TOP * BOTTOM i III 77- r V4IiI II _-t IIIII II IIIii Ii IIII I IIII IIII IIII III IIII IIIiiIS q LbIlls __nr ~iI 1OOftt flAW ASA 700 4001700 SOIM TOO TO JASHOIJT PIN DOWN $ 000041 INNER S a-ITO PLY 66 Ni 0007 BALSA 01005 cY SECTION GG 0005 010 twOtOi TIP OSlO 4 010 10 TUBE r t0i AT 040 5 40104046 501146 MOTIONS _ 4 _________ NTAL STABILIZ&R 0 THROB VIEW D353N1146 SCI4WEIZ&R rss SHEET ca looks neat spinning down few comments about launch technique First make up towing bridle approximately three feet long like use heavier line used winch Tie tow ring end two 3-ft lengths line Tie remaining end two lines large snap swiveL Using atowingbridle wing-mounted tow hooks have never towing problem approximately 200 flights first flight get someone assist launching preferably person has flown large glider such Sailair Astro Jeff Aquila XL will know much line tension required launch Let helper launch airplane concentrate operating winch flying Because fuselage size airfoil used TG-3 has lot drag lift-overdrag ratio nothing brag about Also sink rate higher average RC sport glider Due higher drag TG-3 does like tight circles thermalling keep circles lift bit larger normal added drag has advantage makes easy landings talk about drag might get impression TG-3 real turkey isnt lift TG-3 will go up fact early summer 1979 two flights over hour duration flat-land flying site help thermal sniffer end summer installed thermal sniffer built little larger wing order make altitude attempt National AMA RC Soaring Record FAI World Record Replogle barograph rode back seat Allup weight 10 pounds 14 ounces paperwork accomplished record try over Labor Day weekend Saturday Sunday weather did cooperate Monday better light winds scattered fair-weather cumulus clouds Aviation Weathefs forecast called cloud base 2000 3000 feet morning moving up 3000 4000 feet later day hoping cloud base 5000 6000 feet During late morning early afternoon number flights made reached 2000 feet Mound 200 pm finally got TG-3 up 3400 feet point TG-3 entered large cumulus let old bird fly cloud few seconds deployed spoilers down mm few seconds TG-3 reappeared driving out bottom cloud Conditions didnt get better day 3400 feet highest altitude recorded wasnt enough FAI World Record since AMA Continued page 108 November 198019 SIMIlAR WINS 1St PLACEPATTERN PRE-NOVICE 1979 WINTER NATS SIMIlAR NEW . SI MI TAR SIMIlAR SIMITAR SPORT SIMIlAR l9-40PowerS0lnehSpan Standard Kit Includes SIMITARPly Wing Sheeting Fuselage SIMIlARFoam Coress SIMITARGear Formed Sliding Tray SI MI TARFull Site Plans SIMITAR WINS 1st PLACENORTHROP FLYING WING CONTEST 1979 High Quality 1000 Cutton $ 95 Multi-color Silkscreen6 Sites 5 M L & XL Eleck Rider Yellow Plus $100 Astron Light Blue Shipping Similar 540 Tan Charge SFF YOUR DEALER OR ORDER ROM BILL EVANS 20825K ROSCOE BLVD CANOGA PARK CA 91306 / TEL 213 344-6391 OR 709-0894 tougher proposition achieve ment stability twin pushers day Charlie put dihedral canard surface added small vertical fin atop flew arrow straight Later upset pusher world winning big meets sensational tractors Incidentally timed early gas meet Tecterboro NJ 1933 34 Leo Weiss Frank Tlush Frank Ehling Charlie Grant Joe Kovel among perhaps dozen entrantsthe sky filled twinpusher rubber jobs climbed like javelins got time lone rubber modeler diamond fuselage tractor turned winning flight four-plus Hank Struck Charlie equally prominent full-scale aviation prolific inventor revolutionary designeryoull find him some history books about air racing devoted chapter him holds valuable patents always fighter won law suit against Martin 202 airlinerthey paid royalty hired him settlement deltas possi bly before world-famous Dr Lippisch ever thought segmented flap Charlies idea Nobody able solve riddle spinning flap Charlie has burnt enough keep secret him self answer lies mechanics 1910 Charlie jumping off roof tiny hang gliderhe weighed 100 pounds sopping wetand sailing out over slop ing meadow hundreds feet first air plane Vermont thinks tried first bike hit downhill bump un ceremoniously airborne about 35 feet ashes over teakettle picked gravel out empennage three weeks biggie model plane manu facturing before 1920 salesman Ritchie Wertz Dayton designs sold over $300000 yearly New York buyers company produced 1000 Minute Men day limited capacity propcarv ing machine invented employed 50 people shop moving production line little cars riding rails also mentioned cable initial small parts right through packaging stopwatched process Around 1920 learned reduce 50% weight increase painting 5% kits genuine flying machinesl milled cambered wings long balsa planks slicing off like bologna refrigeration room il chilled wood dipped wings diluted fish glue varnished finally painted yellow gook barely penetrated wood also own company Grant late Twenties threw Kinksbury Toys depression victim produce 2000 Silver Arrows day cambered silver-colored wings aluminum ribs hold shape blue twin sticks fuselage small aluminum U-shaped pieces re taining sticks allowing rubber pass 1927 flew 650 feet could buy over America secret sheep dip bluedyed casein glue Its weight increase 2% MAN saw fabled rubber de signs fine articles aerodynamics books now collectors items Charlie design team remarkable Dayton-Wright Racer soon after 1920 responsible both leading edge slats wing flaps60 years ago retract able gear Today can get Peanut kit Hank Struck Jetco Charlie driven illustri ous ancestors mad inventors great grandfather designed Governor DeWitt Clinton John Bull locomotives grand father installed propulsive machinery Monitor Charlie now has revolutionary windmill could affect energy pic turehis light years ahead modern ized Dutch windmills testy us says AMA doesnt something soon about kids hell start own organization loves boys airplane modeling boys camp mid-Twenties late Howard McEntee instructor people like 1935 Wakefield-winner Gordon Light Joe Kovel vacationers keep telling supercharged octegenarian age 68 cant join crusade write monumental man care AMA Head quarters challenge wits Hes demon phone Charlies new book Gateway Aero Science has over 300 pages loaded fine drawings great flying models Distrib uted Poiks available through Supply Service AMA HQ has already writ ten another prints markets things out pocket first class Fittingly initials CG CG Schweizer TG-3/Hiner Continued page 19 National Soaring Records zero AMA record set proves TG-3 will thermal stable can carry full-size baro graph TG-3 easy-to-build easy-to-fly Stand-Off Sport Scale Sailplane bit different average Scale job Because rules use compromised scale accuracy somewhat favor better flying characteristics have aware stopwatch landing tape fly Sport Scale Gliders fact 1979 LSF Tournament Scale birds flew duration also flew speed/distance task TG-3 real fun like building fuselage stringers give some considera tion have problems building TG 3 drop line 2213 Prentice Creek Apt 104 Downers Grove IL 60515 Iwili try help References Soaring May-June 1944 TG-3A Ernest Schweizer AIR TRAILS Spring t 979 Glider Factory Technical Order No 09-3OAB-2 Erection Main108 Model Aviation NEWT-SHIRTS BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 2 oz HOT STUFF XXc LINEE EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec 1/2 OZ jV HOT STUFF GAP FILLING HIGH VISCOSITY-TIMED BOND 10 25 sec Use like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD %ad9t Ca P 0 BOX 836 SIMI CA 93062 522-0062 tenance Instructions TG-3A Glider Schweizer Aircraft Corporation Drawings National Archives Photos Documentary Photography black white 1361 ST Photo Sqd 1221 South Fern St Arlington VA 22202 Omcial USAF photos sale write price list ordering instructions 21298AC Front View XTG-3 21294ACTow Plane XTG-3 Background 21157AC Side View XTG-3 21296ACXTG-3 Takeoff Bungee Cor4 June 1979 Paint TG hy Bob Storck Color Aircraft Yellow Blue Color Insignia White Red Blue Black F0R MRGUSI ent meantime have System Alert refuses buzz turn transmitter off give fix try System FS NODupont NoAlert works time works properly ith systems mod forget 15123 98013about 17875Not critical 111361865H48 15044 17038Not critical Radio Technique/Myers Continued page 23 quick check oscilloscope showed exactly what happening wouldnt need oscilloscope see 6 volt DC meter lOOK resistance would work well Just connect between negative lead black wire signal lead orange wire turn receiver turn transmitter off few times Sometimes voltmeter will read positive volts some times zero transmitter off point may thinking its simple didnt start measure ment cut out other stuff Two reasons 1 didnt think time 2 needed System Alert wiring diagram wanted make worthwhile changes Knowing problem solution ob vious added 001 mfd capacitor series System Alert green wire Vs watt 1 megohm resistor base input transistor ground Ive supplied sketch too capacitor passes pulses blocks DC resistor insures input transistor turns off So buzzer must sound optimum values just values worked Ed says will make change production may turn out differAnother fix some people may want know about following frame-time resistor early Ace RC Silver Seven trans mitter encoders 270K R2 just above NE5044 has changed production 330 K reason change increase frame time l8ms adequate 2 3 4 5-channel receivers 22ms necessary 6- 7-channel re ceivers Paul Edmunds Pauls Re Omaha NE discovered need change fix worked out Paul Holsten Ace RC Mr Edmunds good enough write tell about Tom Runge president Ace good enough write tell change has made production have early models either swap 33OKforthe27OKordowhatldidIputaS6K resistor series 270K provisions shorting out again should need arise As happens sons 4-channel Cannon system uses 16 millisecond frame transmitter receiver servos want fly flight packs Ill need 18 ms option Mismatched frame times can lead poor servo performance Its much easier retime transmitter go inside receiver servo re-time match transmitter beauty S7 its easy make whatever change need Frame time wondering what Im talking about time required complete set control pulses plus required reset pulse Theres sketch illus trating elsewhere column Since control pulse per channel U BOX 3957TORRANCE CA 90510 frame time also period required repe titions control pulse individual servo servo designed stretch its control pulse over full frame time transmitter designed work fore given servo may work poorly another manufacturers transmitter since new transmitter will have time either longer causing servo somewhat sloppy about staying its rest position shorter causing servo act jittery Figur ing out what frame time servo wants can subject another whole column now play mix-and-match various servos suspect frame-time problems dont ploy well together Nats takes over December issue no Radio Technique until next year See George M Myers 70 Froehlich Farm Road Hicks vOle NY 11801 Scale WC/Wischers Continued page 28 Thats international cooperation its finest third Canadian team member Karel Solnicka also radio problems round two flight fortunate Piper Twin Comanche splattered itself vertically onto runway completely destroyed static scoring F4C Precision Scale completed models flown third flying day gusty turbulent windswith threat rain contrasted lack wind enjoyed Standoff fliers previous two days Strong crosswinds encountered times three days F4C flights Seven 20 entries made no flights damaged during takeoff Highest flight score day made Frank Knowles Tiger Moth November 1980 109 9 HL GLIDERS flfl 3 SATELLITE KITS EEE 17OLDTIMEGAS Send 25 5 RUBBER 3 NORDIC 1980 catalog 9 COMPETIT ION GAS FUEL DTTIMERS -$1075 FAI Model Supply
Edition: Model Aviation - 1980/11
Page Numbers: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 108, 109
NO OCR TEXT NO OCR TEXT wood structure D-tube leading edge plywood Rudder elevator fitted trim tabs completed airframe fabric covered fuselage fitted single wheel nose skid TG-3s equipped radio navigation lights first TG-3s painted yellow over blue trim flash fuselage few TG-3s blue fuselages yellow wing tail surfaces National insignia applied both surfaces both wings consisting blue circle white star red ball center star rudder markings consisted vertical dark blue band forward portion 13 hori zontal red-and-white alternating stripes red first underside wings lettered U S right ARMY left middle 1942 overall color changed yellow silver Tests 1941 revealed yellow color reducing fabric life Although some photos silver gliders meatball insignia candy-striped tail deleted June 1942 feared markings could onfused Japanese Rising Sun same time new national insignia meatball added rear fuselage sides November 1942 US Army letter ing wing underside deleted brief times 1943 national insignia outlined red yellow unlikely gliders marked Later wing insignia applied upper right lower left wings horizontal white bars blue borders applied side national insignia As changes came late 1943 glider training project disbanded November very few photos exist configurations Color markings information obtained article June 1979 Bungee Cord Paint TG Bob Storek Bungee Cord fine newsletter put out Vintage Sailplane Association 6053 25th Rd N Arlington VA 22207 Any model builder interested old gliders should consider joining organization Back didnt use scale grass must real thing Scenes XTG-3 flight test program Wright Field 1942 look cars background careful look paint schemes reveals photos least two different airplanes onlythree XTG-3s built models paint scheme same lower picture issues Bungee Cord can obtained VSA Bob Storck VSAs archivist can provide VSA members information photos TG-series gliders end war surviving TG-3s sold surplus After war TG-3 credited setting holding US duration record extensive period number TG 3s still flying today Air Force Museum gathering information TG-3s 1975 restoration project hopefully TG-3 will some day display Also member Vintage Sailplane Association restoring TG-3 authentic training paint job TG-3 natural Stand-Off Sport Scale Its slab-sided stringered fuselage easy duplicate squared-off empen nage ship has no wing fillets struts worry about canopy simply built out flat sheets biggest advantage TG-3 modeling November 1980 1 3 Flight shots model See much improvementthere illusion reality putcrewfigures cockpit Jackdeparted scale wing dihedralhe put slight amount polyhedral starting point sharp taper-break wing planform hardly noticeable photos Pictures Dan Pruss John Czeszak men olan vviaon snows prelerreu meingo oi naming toe moueu ior iaunch must also keep tension thetow bridles tow ring will slip off either two wing-mounted towhooks right glider climbs out tow rope Note retrieval chute Jack has never tow problem some 200 flights using twin-bridle system wing geometry wing planform full-size prototype close used average sport RC glider TG-3 has aspect ratio 123-to-i relatively large dihedral 4 degrees per wing Also wing has constant-chord main panels moderate taper tip panels About thing missing polyhedral features add up RC model strong wing plenty area good stability excellent tow characteristics no nasty tip stalls TG-3 Construction Before beginning like cut out wing ribs fuselage bulkheads Make template fuselage keel Out 015 clearplastic sheetthis way dont have cut up plans Using template cut out keel Lite Ply After plywood wing ribs cut out holes drilled tubes use wing root rib template drill holes fuselage plywood wing mounting plates Now good time make up some leading edge material out spruce Dremels new table saw fine blade works well dont have access table saw taper spruce strips razor plane correct angle leading edges band saw can also used shape leading edge stock Wing Construction borrowed Aquila like build tip panels first complete plywood dihedral braces sure build washout very important easy-tofly glider Now block up tip panel per plans build main panel onto tip panel used aliphatic resin construction exception wing tubes plywood wing webs use slow-setting epoxy also use slowsetting epoxy glue spruce filler between wing tubes spar makes strong wing gives adequate wood attach tow hooks Also add a webs between end wing tubes next wing rib order 1 4 Model Aviation Nose ribs added duplicate appearance OS prototypes curved steel tube fuselage structure Like keel plywood An overall view nose structure wheel well plywood wing mounting plate show up well aft fuselage showing pushrod exit stabilizer mounting bolts closer lOOK lower tuselage construction Neat compact radio installation Servos rudder elevator spoilers center Antenna housed outer Nyrod tube epoxied side ne ar om tne spruce strip located Just below oetween tne pushrods screw eye used guide spoiler actuation lines turning 90 attach servo ILAI N /8 BALSA FLOOR /8 SIG LITE-PLY KEEL 1 & K /6 BALSA VERTICAL WEB -NOSE TO TAIL 1/8 PLYWXID FLOOR AND FORMERS BLOCKS AND HOOKS FOR3/16K 3/B316 DOWELBOWS LAMINATED JJBLE RUBBER BANDSSPRUCE STAYSROLL BARS ALL /8 X 3/4 SPRL2~ RAILS TO F-3 NOSE FORMERS 12 22 I/B SIG LITE-PLY ONE PIECE KEEL SEE ABOVE 1/16 \BALSA I/B BALSA F I/4SO\\\\ CROSS GR17~ PLYWOOD WEBS SPRUCE FRONTAND BACK Fl I/B PLYI/BPLYWOOTOTHIS BAY FORMERFORMERS RUBBER I/B X 3/4 SPRUCE LAMINATED FOR IDBLOCKS3 1/2 DU-BRO WHEEL ON MUSIC W BOLTS THRJ BLOCK FB 110 4 ALL INTO T -NUTSI/U SIG LITE PLY 1/4 50 SPRUCE STRINGERS NYLON TUBE DU-BRO 2-56 SOCIETSET THRU V2 mWELS 3/8 BALSA WEB ON I/2BALSA DECI F 3 I/B PLYWOCO 3A6 SO SPRUCE BENTTO KEEL 3/B 50BALSA 3/B K 1/2 50 BALSA 3/B BALSA SHEET VB SPRUCE ______________ I/B PLYWOOD LAMINATED 10 I/16PLYWOCO FOR WING MOUNT tI \ 090 MUSIC WIRE 3/32 BALSA STRUTS ON 3/32 WEBS 3/B K 1/2 BALSATIPS I/B X 1/4 SPRUCETE /4K 3/8 BALSA ALL RIBS 3/BX 1/2 RUcOER BASE I/BX 1/4 T E KRAFT SHORT HORN 3/BK 1/2 BALSATIPS SU-PR-UNE CLEVISlO HORN 3A6 SO SPRUCE OUlSIDE3/BBALSA NDSETOTAILIIOPONIYINSIDEALL FRAMING 1/4 K /2 BALSA LAMINATED KEEL 1/16K I/2SHrTETOPAND BOTlOM RODS INTO 250 10 BRASS FRONTONE IMBED IN SPRJCE 3/d K I/i BALSA SPOILER F84 DIAGONAL BRACE SAME AS SPAR 3/32 WEBS I/B PLYWOOD JOINER IN LE I/B PLYWOOD JONER PLATE FRONT AND BACK 1/16 BALSA WEBS FRONT AND BACK OF SRAR SOUD BALSA TIPS 1A6 K I/4CAP STRIrS TOPAND BOTIi I/8PLYwOOD TIP SKID 1/16 BALSA ALL RIBS1/16 SHEET lOPAND rroM L E 3A6 K 3/B SPRUCE SPAR 1OPANDBO1TOM I/4X 3/BBALSA LEDGE SOJCE 4x* SPRucR SECTION A-A1 RYPIcAL CROSSECTION SPORT PILOT SHOWN / F F OP MEHIR RROM* FLY FT2 NOTCUES FOR CO FORMER PRIM RPR OP BOTTOM MANE BOTH FROMj PAY BB3 DWBT P50 0 j 00 STROLL Sq SPRIHCA 4RQ SPRUCE RE5R TRIM TO FIT* PLY CANOPY PLODS A.PRO M MAST ER 50FFRRT USE IS ROTH CANOPY I-SEOMEOTS /jFTCFT 5 c-I F-ri WSRLUMINUM 1-- -1Fa ---7--F0FS 0 RBRR-TRIM TO PITB PRO M MASTER OUTLINEFB4 FBI RHEEBE FBS F3 KI restrain wing wires tubes cheated added small amount polydihedral taper break order get glider turn properly ailerons polydihedral could eliminated func tioning ailerons added would suggest coup ling rudder ailerons use about 30 degrees rudder throw small aileron deflection best results Another possibility try would coupled spoilers rudder together scale dihedral right turn would use right rudder right spoiler have tried other gliders works well Rub baby oil wing plan make paper transparent turn over plan build second half wing Tail surfaces much needs said about tail surfaces construction rather simple ItTs good idea make horizontal stabilizer removable fuselage transportation storage purposes cut taper rudder elevator ribs razor saw Cut little oversize dress down sanding block Use sheet metal screws attach control horns plywood mounts Fuselage Lay down three main longerons over plans pin place Allow bottom longeron extend rear former F3 Right left bottom longerons will later pulled together meet rear fuselage keel Add 1/16 balsa webbing longeron shown plans After glue dries remove plans mark position sides Fl F2 F3 Now add spruce strips inside fuselage sides leaving gaps formers Turn plans over rub baby oil build other side Glue formers Fl F2 F3 dry pull tail together glue Add bottom crossgrain sheeting Fl F3 Pull bottom longerons together meet rear keel Add cross-grain sheeting Add cross braces turtle-deck former position maintain correct width Add spruce strips bottom sheeting between Fl F3 front ofFi key keel Next glue turtledeck formers stringers Add stab mounting structure epoxying blind nuts mounting Glue keel former FTI Glue 1/16 balsa wheel-well followed i plywood wheel sides Add sub-bulkheads keel associated stringers Now add spruce tail post Add stringer rear keel tailpost Next add three vertical grained braces between bottom rear longeron box structure Fit add plywood plates wing mounting Make sure right left plates lined up accurately fore aft Now epoxy wing support tubes fuselage wings wires 1 6 Model Aviation IIcANOPYKuPOR-TII jJ9REIoIRsO ROD RUCE STRIPS sq LAMINATE FUY ANDjPLT FNT FORMER REQUIRED jRIBLITEFLY MARE ALL TR PORMERS EROM * SE * HII LORSTOS OP SPRUCE IRS O DUIRE SECTION B-B r T FULL-SIZE PLANS AVAILABLE . SEE PAGE 128 ICOECISEE F5FI7 MARSYUBA fl5 PROM F FTR 3 444 BALSA 00*005 SYR REESE MARS ALL C SULRI4EAOS FREESPLY SPRUCE j BALSA IBEPY FT7IOUR CORN Fre FT9 c C z r PUSASBOR Err 00100 IS BUILTQZE~ ly 30CM 0051St OSQBSC W hp 30GB WESt NERE hp 35CTION C-C PLY MOUNTING SIJPBUPS PROBUCTS 010015 ASSOUBLY rORO$OUEIO OCR j PLY place ensure proper alignment Glue balsa bottom wing tubes floor fuse Next add 12 Sig Lite-Ply nose ribs trim fit individually wheel added until fuselage covered After covering cut out wheel-well cut small hole covering order insert brass tubing wheel axle Place wheel well insert axle using dab epoxy keep axle backing out small covering patch over axle access hole completes step skid laminated two strips spruce Use slow-setting epoxy glue Mold curve aid jig made finishing nails nailed board Canopy Make a forms mold canopy bows around Laminate two strips 1/16 X spruce strips canopy bows Use slow-setting epoxy allow cure 24 hours Make November 1980 1 7 * BALSA * 044 SPRUCE 44 BALSA OSNOTES PREL OUTLINE * SI 1BALSA WEB Rear view spoilers shows typical Aquilatype linkage fine spring undertension return spoilers closed position VSET fl04405000PO ippP40 Ut W V7 -- 4-4 ri SMUtS 3-pPOiYUtPPOU F -I II-r76 aK F IIi ipo SECTION 0-0 o o - 3 0 44 05047 70 NOtE CflNG PIES t S AEt MOOS PROM PLO SECTION E-E SECTION F-F 10 II 4 S IT I0 POLYHEDRAL DOUBLER U RSI4IJIREO ft SALA Si plywood canopy base fore aft sections Glue forming bottom bases key canopy assembly accurately fuselage Epoxy instrument panel rear bulkhead canopy bases Notch canopy bases accept bows Epoxy bows base after trimming required length Epoxy hardwood dowels simulate roll-over structure full-size aircraft canopies left natural color aluminum Paint canopy frames silver epoxy after filling thinnedout Stuff Epoxy paint gives superior adhesion important servo mounting tape used attach pilots canopy base Add instru ment panel detailing desired point cluster instruments instructor riding back seat located roll-over cage Cut out canopy sections heavy sheet acetate rear canopy piece front canopy three pieces attached plastic canopy base 3M clear plastic tape Tape canopy side base rolling over bows tape other side base Wrap approximately -in tape around bottom canopy base ensure good adhesion front canopy section attach rear acetate piece first followed center section front section last way slipstream cant get under canopy sections during flight might otherwise rip off section Covering suggest using super MonoKote plans three-view drawing depict all-silver version easy route just cover air frame silver MonoKote cut tail numbers out black trim MonoKote Insignia also can made out blue white trim MonoKote go earlier yellow color scheme additional markings can made trim MonoKote Spray paint light blue fuselage flash epoxy paint after cleaning area painted thinner Trim tape used outline trim tabs ailerons dive brakes bottom wings Flying Now come fun part Dont worry about weight too much TG-3 weighed 7 pounds ready-to-fly plans show fore aft center-of-gravity CG posi tions Use forward position initial test flights continue using forward CG until feel comfortable launch have confidence glider As soon possible move aft center-of-gravity position glider will thermal better configuration aft CG TG-3 does beautiful spins have enough control surface movement like use spin lose altitude after working up max ship could just spiral down use spoilers dive TG-3 18 Model Aviation F I1ff FULL-SIZE PLANS AVAILABLE . SEE PAGE 128 YOP4 0tTOM 00150 000570405BALSA La TOP 4 BOrTOTA 101SPOOLS5000 TOP * BOTTOM i III 77- r V4IiI II _-t IIIII II IIIii Ii IIII I IIII IIII IIII III IIII IIIiiIS q LbIlls __nr ~iI 1OOftt flAW ASA 700 4001700 SOIM TOO TO JASHOIJT PIN DOWN $ 000041 INNER S a-ITO PLY 66 Ni 0007 BALSA 01005 cY SECTION GG 0005 010 twOtOi TIP OSlO 4 010 10 TUBE r t0i AT 040 5 40104046 501146 MOTIONS _ 4 _________ NTAL STABILIZ&R 0 THROB VIEW D353N1146 SCI4WEIZ&R rss SHEET ca looks neat spinning down few comments about launch technique First make up towing bridle approximately three feet long like use heavier line used winch Tie tow ring end two 3-ft lengths line Tie remaining end two lines large snap swiveL Using atowingbridle wing-mounted tow hooks have never towing problem approximately 200 flights first flight get someone assist launching preferably person has flown large glider such Sailair Astro Jeff Aquila XL will know much line tension required launch Let helper launch airplane concentrate operating winch flying Because fuselage size airfoil used TG-3 has lot drag lift-overdrag ratio nothing brag about Also sink rate higher average RC sport glider Due higher drag TG-3 does like tight circles thermalling keep circles lift bit larger normal added drag has advantage makes easy landings talk about drag might get impression TG-3 real turkey isnt lift TG-3 will go up fact early summer 1979 two flights over hour duration flat-land flying site help thermal sniffer end summer installed thermal sniffer built little larger wing order make altitude attempt National AMA RC Soaring Record FAI World Record Replogle barograph rode back seat Allup weight 10 pounds 14 ounces paperwork accomplished record try over Labor Day weekend Saturday Sunday weather did cooperate Monday better light winds scattered fair-weather cumulus clouds Aviation Weathefs forecast called cloud base 2000 3000 feet morning moving up 3000 4000 feet later day hoping cloud base 5000 6000 feet During late morning early afternoon number flights made reached 2000 feet Mound 200 pm finally got TG-3 up 3400 feet point TG-3 entered large cumulus let old bird fly cloud few seconds deployed spoilers down mm few seconds TG-3 reappeared driving out bottom cloud Conditions didnt get better day 3400 feet highest altitude recorded wasnt enough FAI World Record since AMA Continued page 108 November 198019 SIMIlAR WINS 1St PLACEPATTERN PRE-NOVICE 1979 WINTER NATS SIMIlAR NEW . SI MI TAR SIMIlAR SIMITAR SPORT SIMIlAR l9-40PowerS0lnehSpan Standard Kit Includes SIMITARPly Wing Sheeting Fuselage SIMIlARFoam Coress SIMITARGear Formed Sliding Tray SI MI TARFull Site Plans SIMITAR WINS 1st PLACENORTHROP FLYING WING CONTEST 1979 High Quality 1000 Cutton $ 95 Multi-color Silkscreen6 Sites 5 M L & XL Eleck Rider Yellow Plus $100 Astron Light Blue Shipping Similar 540 Tan Charge SFF YOUR DEALER OR ORDER ROM BILL EVANS 20825K ROSCOE BLVD CANOGA PARK CA 91306 / TEL 213 344-6391 OR 709-0894 tougher proposition achieve ment stability twin pushers day Charlie put dihedral canard surface added small vertical fin atop flew arrow straight Later upset pusher world winning big meets sensational tractors Incidentally timed early gas meet Tecterboro NJ 1933 34 Leo Weiss Frank Tlush Frank Ehling Charlie Grant Joe Kovel among perhaps dozen entrantsthe sky filled twinpusher rubber jobs climbed like javelins got time lone rubber modeler diamond fuselage tractor turned winning flight four-plus Hank Struck Charlie equally prominent full-scale aviation prolific inventor revolutionary designeryoull find him some history books about air racing devoted chapter him holds valuable patents always fighter won law suit against Martin 202 airlinerthey paid royalty hired him settlement deltas possi bly before world-famous Dr Lippisch ever thought segmented flap Charlies idea Nobody able solve riddle spinning flap Charlie has burnt enough keep secret him self answer lies mechanics 1910 Charlie jumping off roof tiny hang gliderhe weighed 100 pounds sopping wetand sailing out over slop ing meadow hundreds feet first air plane Vermont thinks tried first bike hit downhill bump un ceremoniously airborne about 35 feet ashes over teakettle picked gravel out empennage three weeks biggie model plane manu facturing before 1920 salesman Ritchie Wertz Dayton designs sold over $300000 yearly New York buyers company produced 1000 Minute Men day limited capacity propcarv ing machine invented employed 50 people shop moving production line little cars riding rails also mentioned cable initial small parts right through packaging stopwatched process Around 1920 learned reduce 50% weight increase painting 5% kits genuine flying machinesl milled cambered wings long balsa planks slicing off like bologna refrigeration room il chilled wood dipped wings diluted fish glue varnished finally painted yellow gook barely penetrated wood also own company Grant late Twenties threw Kinksbury Toys depression victim produce 2000 Silver Arrows day cambered silver-colored wings aluminum ribs hold shape blue twin sticks fuselage small aluminum U-shaped pieces re taining sticks allowing rubber pass 1927 flew 650 feet could buy over America secret sheep dip bluedyed casein glue Its weight increase 2% MAN saw fabled rubber de signs fine articles aerodynamics books now collectors items Charlie design team remarkable Dayton-Wright Racer soon after 1920 responsible both leading edge slats wing flaps60 years ago retract able gear Today can get Peanut kit Hank Struck Jetco Charlie driven illustri ous ancestors mad inventors great grandfather designed Governor DeWitt Clinton John Bull locomotives grand father installed propulsive machinery Monitor Charlie now has revolutionary windmill could affect energy pic turehis light years ahead modern ized Dutch windmills testy us says AMA doesnt something soon about kids hell start own organization loves boys airplane modeling boys camp mid-Twenties late Howard McEntee instructor people like 1935 Wakefield-winner Gordon Light Joe Kovel vacationers keep telling supercharged octegenarian age 68 cant join crusade write monumental man care AMA Head quarters challenge wits Hes demon phone Charlies new book Gateway Aero Science has over 300 pages loaded fine drawings great flying models Distrib uted Poiks available through Supply Service AMA HQ has already writ ten another prints markets things out pocket first class Fittingly initials CG CG Schweizer TG-3/Hiner Continued page 19 National Soaring Records zero AMA record set proves TG-3 will thermal stable can carry full-size baro graph TG-3 easy-to-build easy-to-fly Stand-Off Sport Scale Sailplane bit different average Scale job Because rules use compromised scale accuracy somewhat favor better flying characteristics have aware stopwatch landing tape fly Sport Scale Gliders fact 1979 LSF Tournament Scale birds flew duration also flew speed/distance task TG-3 real fun like building fuselage stringers give some considera tion have problems building TG 3 drop line 2213 Prentice Creek Apt 104 Downers Grove IL 60515 Iwili try help References Soaring May-June 1944 TG-3A Ernest Schweizer AIR TRAILS Spring t 979 Glider Factory Technical Order No 09-3OAB-2 Erection Main108 Model Aviation NEWT-SHIRTS BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 2 oz HOT STUFF XXc LINEE EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec 1/2 OZ jV HOT STUFF GAP FILLING HIGH VISCOSITY-TIMED BOND 10 25 sec Use like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD %ad9t Ca P 0 BOX 836 SIMI CA 93062 522-0062 tenance Instructions TG-3A Glider Schweizer Aircraft Corporation Drawings National Archives Photos Documentary Photography black white 1361 ST Photo Sqd 1221 South Fern St Arlington VA 22202 Omcial USAF photos sale write price list ordering instructions 21298AC Front View XTG-3 21294ACTow Plane XTG-3 Background 21157AC Side View XTG-3 21296ACXTG-3 Takeoff Bungee Cor4 June 1979 Paint TG hy Bob Storck Color Aircraft Yellow Blue Color Insignia White Red Blue Black F0R MRGUSI ent meantime have System Alert refuses buzz turn transmitter off give fix try System FS NODupont NoAlert works time works properly ith systems mod forget 15123 98013about 17875Not critical 111361865H48 15044 17038Not critical Radio Technique/Myers Continued page 23 quick check oscilloscope showed exactly what happening wouldnt need oscilloscope see 6 volt DC meter lOOK resistance would work well Just connect between negative lead black wire signal lead orange wire turn receiver turn transmitter off few times Sometimes voltmeter will read positive volts some times zero transmitter off point may thinking its simple didnt start measure ment cut out other stuff Two reasons 1 didnt think time 2 needed System Alert wiring diagram wanted make worthwhile changes Knowing problem solution ob vious added 001 mfd capacitor series System Alert green wire Vs watt 1 megohm resistor base input transistor ground Ive supplied sketch too capacitor passes pulses blocks DC resistor insures input transistor turns off So buzzer must sound optimum values just values worked Ed says will make change production may turn out differAnother fix some people may want know about following frame-time resistor early Ace RC Silver Seven trans mitter encoders 270K R2 just above NE5044 has changed production 330 K reason change increase frame time l8ms adequate 2 3 4 5-channel receivers 22ms necessary 6- 7-channel re ceivers Paul Edmunds Pauls Re Omaha NE discovered need change fix worked out Paul Holsten Ace RC Mr Edmunds good enough write tell about Tom Runge president Ace good enough write tell change has made production have early models either swap 33OKforthe27OKordowhatldidIputaS6K resistor series 270K provisions shorting out again should need arise As happens sons 4-channel Cannon system uses 16 millisecond frame transmitter receiver servos want fly flight packs Ill need 18 ms option Mismatched frame times can lead poor servo performance Its much easier retime transmitter go inside receiver servo re-time match transmitter beauty S7 its easy make whatever change need Frame time wondering what Im talking about time required complete set control pulses plus required reset pulse Theres sketch illus trating elsewhere column Since control pulse per channel U BOX 3957TORRANCE CA 90510 frame time also period required repe titions control pulse individual servo servo designed stretch its control pulse over full frame time transmitter designed work fore given servo may work poorly another manufacturers transmitter since new transmitter will have time either longer causing servo somewhat sloppy about staying its rest position shorter causing servo act jittery Figur ing out what frame time servo wants can subject another whole column now play mix-and-match various servos suspect frame-time problems dont ploy well together Nats takes over December issue no Radio Technique until next year See George M Myers 70 Froehlich Farm Road Hicks vOle NY 11801 Scale WC/Wischers Continued page 28 Thats international cooperation its finest third Canadian team member Karel Solnicka also radio problems round two flight fortunate Piper Twin Comanche splattered itself vertically onto runway completely destroyed static scoring F4C Precision Scale completed models flown third flying day gusty turbulent windswith threat rain contrasted lack wind enjoyed Standoff fliers previous two days Strong crosswinds encountered times three days F4C flights Seven 20 entries made no flights damaged during takeoff Highest flight score day made Frank Knowles Tiger Moth November 1980 109 9 HL GLIDERS flfl 3 SATELLITE KITS EEE 17OLDTIMEGAS Send 25 5 RUBBER 3 NORDIC 1980 catalog 9 COMPETIT ION GAS FUEL DTTIMERS -$1075 FAI Model Supply
Edition: Model Aviation - 1980/11
Page Numbers: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 108, 109
NO OCR TEXT NO OCR TEXT wood structure D-tube leading edge plywood Rudder elevator fitted trim tabs completed airframe fabric covered fuselage fitted single wheel nose skid TG-3s equipped radio navigation lights first TG-3s painted yellow over blue trim flash fuselage few TG-3s blue fuselages yellow wing tail surfaces National insignia applied both surfaces both wings consisting blue circle white star red ball center star rudder markings consisted vertical dark blue band forward portion 13 hori zontal red-and-white alternating stripes red first underside wings lettered U S right ARMY left middle 1942 overall color changed yellow silver Tests 1941 revealed yellow color reducing fabric life Although some photos silver gliders meatball insignia candy-striped tail deleted June 1942 feared markings could onfused Japanese Rising Sun same time new national insignia meatball added rear fuselage sides November 1942 US Army letter ing wing underside deleted brief times 1943 national insignia outlined red yellow unlikely gliders marked Later wing insignia applied upper right lower left wings horizontal white bars blue borders applied side national insignia As changes came late 1943 glider training project disbanded November very few photos exist configurations Color markings information obtained article June 1979 Bungee Cord Paint TG Bob Storek Bungee Cord fine newsletter put out Vintage Sailplane Association 6053 25th Rd N Arlington VA 22207 Any model builder interested old gliders should consider joining organization Back didnt use scale grass must real thing Scenes XTG-3 flight test program Wright Field 1942 look cars background careful look paint schemes reveals photos least two different airplanes onlythree XTG-3s built models paint scheme same lower picture issues Bungee Cord can obtained VSA Bob Storck VSAs archivist can provide VSA members information photos TG-series gliders end war surviving TG-3s sold surplus After war TG-3 credited setting holding US duration record extensive period number TG 3s still flying today Air Force Museum gathering information TG-3s 1975 restoration project hopefully TG-3 will some day display Also member Vintage Sailplane Association restoring TG-3 authentic training paint job TG-3 natural Stand-Off Sport Scale Its slab-sided stringered fuselage easy duplicate squared-off empen nage ship has no wing fillets struts worry about canopy simply built out flat sheets biggest advantage TG-3 modeling November 1980 1 3 Flight shots model See much improvementthere illusion reality putcrewfigures cockpit Jackdeparted scale wing dihedralhe put slight amount polyhedral starting point sharp taper-break wing planform hardly noticeable photos Pictures Dan Pruss John Czeszak men olan vviaon snows prelerreu meingo oi naming toe moueu ior iaunch must also keep tension thetow bridles tow ring will slip off either two wing-mounted towhooks right glider climbs out tow rope Note retrieval chute Jack has never tow problem some 200 flights using twin-bridle system wing geometry wing planform full-size prototype close used average sport RC glider TG-3 has aspect ratio 123-to-i relatively large dihedral 4 degrees per wing Also wing has constant-chord main panels moderate taper tip panels About thing missing polyhedral features add up RC model strong wing plenty area good stability excellent tow characteristics no nasty tip stalls TG-3 Construction Before beginning like cut out wing ribs fuselage bulkheads Make template fuselage keel Out 015 clearplastic sheetthis way dont have cut up plans Using template cut out keel Lite Ply After plywood wing ribs cut out holes drilled tubes use wing root rib template drill holes fuselage plywood wing mounting plates Now good time make up some leading edge material out spruce Dremels new table saw fine blade works well dont have access table saw taper spruce strips razor plane correct angle leading edges band saw can also used shape leading edge stock Wing Construction borrowed Aquila like build tip panels first complete plywood dihedral braces sure build washout very important easy-tofly glider Now block up tip panel per plans build main panel onto tip panel used aliphatic resin construction exception wing tubes plywood wing webs use slow-setting epoxy also use slowsetting epoxy glue spruce filler between wing tubes spar makes strong wing gives adequate wood attach tow hooks Also add a webs between end wing tubes next wing rib order 1 4 Model Aviation Nose ribs added duplicate appearance OS prototypes curved steel tube fuselage structure Like keel plywood An overall view nose structure wheel well plywood wing mounting plate show up well aft fuselage showing pushrod exit stabilizer mounting bolts closer lOOK lower tuselage construction Neat compact radio installation Servos rudder elevator spoilers center Antenna housed outer Nyrod tube epoxied side ne ar om tne spruce strip located Just below oetween tne pushrods screw eye used guide spoiler actuation lines turning 90 attach servo ILAI N /8 BALSA FLOOR /8 SIG LITE-PLY KEEL 1 & K /6 BALSA VERTICAL WEB -NOSE TO TAIL 1/8 PLYWXID FLOOR AND FORMERS BLOCKS AND HOOKS FOR3/16K 3/B316 DOWELBOWS LAMINATED JJBLE RUBBER BANDSSPRUCE STAYSROLL BARS ALL /8 X 3/4 SPRL2~ RAILS TO F-3 NOSE FORMERS 12 22 I/B SIG LITE-PLY ONE PIECE KEEL SEE ABOVE 1/16 \BALSA I/B BALSA F I/4SO\\\\ CROSS GR17~ PLYWOOD WEBS SPRUCE FRONTAND BACK Fl I/B PLYI/BPLYWOOTOTHIS BAY FORMERFORMERS RUBBER I/B X 3/4 SPRUCE LAMINATED FOR IDBLOCKS3 1/2 DU-BRO WHEEL ON MUSIC W BOLTS THRJ BLOCK FB 110 4 ALL INTO T -NUTSI/U SIG LITE PLY 1/4 50 SPRUCE STRINGERS NYLON TUBE DU-BRO 2-56 SOCIETSET THRU V2 mWELS 3/8 BALSA WEB ON I/2BALSA DECI F 3 I/B PLYWOCO 3A6 SO SPRUCE BENTTO KEEL 3/B 50BALSA 3/B K 1/2 50 BALSA 3/B BALSA SHEET VB SPRUCE ______________ I/B PLYWOOD LAMINATED 10 I/16PLYWOCO FOR WING MOUNT tI \ 090 MUSIC WIRE 3/32 BALSA STRUTS ON 3/32 WEBS 3/B K 1/2 BALSATIPS I/B X 1/4 SPRUCETE /4K 3/8 BALSA ALL RIBS 3/BX 1/2 RUcOER BASE I/BX 1/4 T E KRAFT SHORT HORN 3/BK 1/2 BALSATIPS SU-PR-UNE CLEVISlO HORN 3A6 SO SPRUCE OUlSIDE3/BBALSA NDSETOTAILIIOPONIYINSIDEALL FRAMING 1/4 K /2 BALSA LAMINATED KEEL 1/16K I/2SHrTETOPAND BOTlOM RODS INTO 250 10 BRASS FRONTONE IMBED IN SPRJCE 3/d K I/i BALSA SPOILER F84 DIAGONAL BRACE SAME AS SPAR 3/32 WEBS I/B PLYWOOD JOINER IN LE I/B PLYWOOD JONER PLATE FRONT AND BACK 1/16 BALSA WEBS FRONT AND BACK OF SRAR SOUD BALSA TIPS 1A6 K I/4CAP STRIrS TOPAND BOTIi I/8PLYwOOD TIP SKID 1/16 BALSA ALL RIBS1/16 SHEET lOPAND rroM L E 3A6 K 3/B SPRUCE SPAR 1OPANDBO1TOM I/4X 3/BBALSA LEDGE SOJCE 4x* SPRucR SECTION A-A1 RYPIcAL CROSSECTION SPORT PILOT SHOWN / F F OP MEHIR RROM* FLY FT2 NOTCUES FOR CO FORMER PRIM RPR OP BOTTOM MANE BOTH FROMj PAY BB3 DWBT P50 0 j 00 STROLL Sq SPRIHCA 4RQ SPRUCE RE5R TRIM TO FIT* PLY CANOPY PLODS A.PRO M MAST ER 50FFRRT USE IS ROTH CANOPY I-SEOMEOTS /jFTCFT 5 c-I F-ri WSRLUMINUM 1-- -1Fa ---7--F0FS 0 RBRR-TRIM TO PITB PRO M MASTER OUTLINEFB4 FBI RHEEBE FBS F3 KI restrain wing wires tubes cheated added small amount polydihedral taper break order get glider turn properly ailerons polydihedral could eliminated func tioning ailerons added would suggest coup ling rudder ailerons use about 30 degrees rudder throw small aileron deflection best results Another possibility try would coupled spoilers rudder together scale dihedral right turn would use right rudder right spoiler have tried other gliders works well Rub baby oil wing plan make paper transparent turn over plan build second half wing Tail surfaces much needs said about tail surfaces construction rather simple ItTs good idea make horizontal stabilizer removable fuselage transportation storage purposes cut taper rudder elevator ribs razor saw Cut little oversize dress down sanding block Use sheet metal screws attach control horns plywood mounts Fuselage Lay down three main longerons over plans pin place Allow bottom longeron extend rear former F3 Right left bottom longerons will later pulled together meet rear fuselage keel Add 1/16 balsa webbing longeron shown plans After glue dries remove plans mark position sides Fl F2 F3 Now add spruce strips inside fuselage sides leaving gaps formers Turn plans over rub baby oil build other side Glue formers Fl F2 F3 dry pull tail together glue Add bottom crossgrain sheeting Fl F3 Pull bottom longerons together meet rear keel Add cross-grain sheeting Add cross braces turtle-deck former position maintain correct width Add spruce strips bottom sheeting between Fl F3 front ofFi key keel Next glue turtledeck formers stringers Add stab mounting structure epoxying blind nuts mounting Glue keel former FTI Glue 1/16 balsa wheel-well followed i plywood wheel sides Add sub-bulkheads keel associated stringers Now add spruce tail post Add stringer rear keel tailpost Next add three vertical grained braces between bottom rear longeron box structure Fit add plywood plates wing mounting Make sure right left plates lined up accurately fore aft Now epoxy wing support tubes fuselage wings wires 1 6 Model Aviation IIcANOPYKuPOR-TII jJ9REIoIRsO ROD RUCE STRIPS sq LAMINATE FUY ANDjPLT FNT FORMER REQUIRED jRIBLITEFLY MARE ALL TR PORMERS EROM * SE * HII LORSTOS OP SPRUCE IRS O DUIRE SECTION B-B r T FULL-SIZE PLANS AVAILABLE . SEE PAGE 128 ICOECISEE F5FI7 MARSYUBA fl5 PROM F FTR 3 444 BALSA 00*005 SYR REESE MARS ALL C SULRI4EAOS FREESPLY SPRUCE j BALSA IBEPY FT7IOUR CORN Fre FT9 c C z r PUSASBOR Err 00100 IS BUILTQZE~ ly 30CM 0051St OSQBSC W hp 30GB WESt NERE hp 35CTION C-C PLY MOUNTING SIJPBUPS PROBUCTS 010015 ASSOUBLY rORO$OUEIO OCR j PLY place ensure proper alignment Glue balsa bottom wing tubes floor fuse Next add 12 Sig Lite-Ply nose ribs trim fit individually wheel added until fuselage covered After covering cut out wheel-well cut small hole covering order insert brass tubing wheel axle Place wheel well insert axle using dab epoxy keep axle backing out small covering patch over axle access hole completes step skid laminated two strips spruce Use slow-setting epoxy glue Mold curve aid jig made finishing nails nailed board Canopy Make a forms mold canopy bows around Laminate two strips 1/16 X spruce strips canopy bows Use slow-setting epoxy allow cure 24 hours Make November 1980 1 7 * BALSA * 044 SPRUCE 44 BALSA OSNOTES PREL OUTLINE * SI 1BALSA WEB Rear view spoilers shows typical Aquilatype linkage fine spring undertension return spoilers closed position VSET fl04405000PO ippP40 Ut W V7 -- 4-4 ri SMUtS 3-pPOiYUtPPOU F -I II-r76 aK F IIi ipo SECTION 0-0 o o - 3 0 44 05047 70 NOtE CflNG PIES t S AEt MOOS PROM PLO SECTION E-E SECTION F-F 10 II 4 S IT I0 POLYHEDRAL DOUBLER U RSI4IJIREO ft SALA Si plywood canopy base fore aft sections Glue forming bottom bases key canopy assembly accurately fuselage Epoxy instrument panel rear bulkhead canopy bases Notch canopy bases accept bows Epoxy bows base after trimming required length Epoxy hardwood dowels simulate roll-over structure full-size aircraft canopies left natural color aluminum Paint canopy frames silver epoxy after filling thinnedout Stuff Epoxy paint gives superior adhesion important servo mounting tape used attach pilots canopy base Add instru ment panel detailing desired point cluster instruments instructor riding back seat located roll-over cage Cut out canopy sections heavy sheet acetate rear canopy piece front canopy three pieces attached plastic canopy base 3M clear plastic tape Tape canopy side base rolling over bows tape other side base Wrap approximately -in tape around bottom canopy base ensure good adhesion front canopy section attach rear acetate piece first followed center section front section last way slipstream cant get under canopy sections during flight might otherwise rip off section Covering suggest using super MonoKote plans three-view drawing depict all-silver version easy route just cover air frame silver MonoKote cut tail numbers out black trim MonoKote Insignia also can made out blue white trim MonoKote go earlier yellow color scheme additional markings can made trim MonoKote Spray paint light blue fuselage flash epoxy paint after cleaning area painted thinner Trim tape used outline trim tabs ailerons dive brakes bottom wings Flying Now come fun part Dont worry about weight too much TG-3 weighed 7 pounds ready-to-fly plans show fore aft center-of-gravity CG posi tions Use forward position initial test flights continue using forward CG until feel comfortable launch have confidence glider As soon possible move aft center-of-gravity position glider will thermal better configuration aft CG TG-3 does beautiful spins have enough control surface movement like use spin lose altitude after working up max ship could just spiral down use spoilers dive TG-3 18 Model Aviation F I1ff FULL-SIZE PLANS AVAILABLE . SEE PAGE 128 YOP4 0tTOM 00150 000570405BALSA La TOP 4 BOrTOTA 101SPOOLS5000 TOP * BOTTOM i III 77- r V4IiI II _-t IIIII II IIIii Ii IIII I IIII IIII IIII III IIII IIIiiIS q LbIlls __nr ~iI 1OOftt flAW ASA 700 4001700 SOIM TOO TO JASHOIJT PIN DOWN $ 000041 INNER S a-ITO PLY 66 Ni 0007 BALSA 01005 cY SECTION GG 0005 010 twOtOi TIP OSlO 4 010 10 TUBE r t0i AT 040 5 40104046 501146 MOTIONS _ 4 _________ NTAL STABILIZ&R 0 THROB VIEW D353N1146 SCI4WEIZ&R rss SHEET ca looks neat spinning down few comments about launch technique First make up towing bridle approximately three feet long like use heavier line used winch Tie tow ring end two 3-ft lengths line Tie remaining end two lines large snap swiveL Using atowingbridle wing-mounted tow hooks have never towing problem approximately 200 flights first flight get someone assist launching preferably person has flown large glider such Sailair Astro Jeff Aquila XL will know much line tension required launch Let helper launch airplane concentrate operating winch flying Because fuselage size airfoil used TG-3 has lot drag lift-overdrag ratio nothing brag about Also sink rate higher average RC sport glider Due higher drag TG-3 does like tight circles thermalling keep circles lift bit larger normal added drag has advantage makes easy landings talk about drag might get impression TG-3 real turkey isnt lift TG-3 will go up fact early summer 1979 two flights over hour duration flat-land flying site help thermal sniffer end summer installed thermal sniffer built little larger wing order make altitude attempt National AMA RC Soaring Record FAI World Record Replogle barograph rode back seat Allup weight 10 pounds 14 ounces paperwork accomplished record try over Labor Day weekend Saturday Sunday weather did cooperate Monday better light winds scattered fair-weather cumulus clouds Aviation Weathefs forecast called cloud base 2000 3000 feet morning moving up 3000 4000 feet later day hoping cloud base 5000 6000 feet During late morning early afternoon number flights made reached 2000 feet Mound 200 pm finally got TG-3 up 3400 feet point TG-3 entered large cumulus let old bird fly cloud few seconds deployed spoilers down mm few seconds TG-3 reappeared driving out bottom cloud Conditions didnt get better day 3400 feet highest altitude recorded wasnt enough FAI World Record since AMA Continued page 108 November 198019 SIMIlAR WINS 1St PLACEPATTERN PRE-NOVICE 1979 WINTER NATS SIMIlAR NEW . SI MI TAR SIMIlAR SIMITAR SPORT SIMIlAR l9-40PowerS0lnehSpan Standard Kit Includes SIMITARPly Wing Sheeting Fuselage SIMIlARFoam Coress SIMITARGear Formed Sliding Tray SI MI TARFull Site Plans SIMITAR WINS 1st PLACENORTHROP FLYING WING CONTEST 1979 High Quality 1000 Cutton $ 95 Multi-color Silkscreen6 Sites 5 M L & XL Eleck Rider Yellow Plus $100 Astron Light Blue Shipping Similar 540 Tan Charge SFF YOUR DEALER OR ORDER ROM BILL EVANS 20825K ROSCOE BLVD CANOGA PARK CA 91306 / TEL 213 344-6391 OR 709-0894 tougher proposition achieve ment stability twin pushers day Charlie put dihedral canard surface added small vertical fin atop flew arrow straight Later upset pusher world winning big meets sensational tractors Incidentally timed early gas meet Tecterboro NJ 1933 34 Leo Weiss Frank Tlush Frank Ehling Charlie Grant Joe Kovel among perhaps dozen entrantsthe sky filled twinpusher rubber jobs climbed like javelins got time lone rubber modeler diamond fuselage tractor turned winning flight four-plus Hank Struck Charlie equally prominent full-scale aviation prolific inventor revolutionary designeryoull find him some history books about air racing devoted chapter him holds valuable patents always fighter won law suit against Martin 202 airlinerthey paid royalty hired him settlement deltas possi bly before world-famous Dr Lippisch ever thought segmented flap Charlies idea Nobody able solve riddle spinning flap Charlie has burnt enough keep secret him self answer lies mechanics 1910 Charlie jumping off roof tiny hang gliderhe weighed 100 pounds sopping wetand sailing out over slop ing meadow hundreds feet first air plane Vermont thinks tried first bike hit downhill bump un ceremoniously airborne about 35 feet ashes over teakettle picked gravel out empennage three weeks biggie model plane manu facturing before 1920 salesman Ritchie Wertz Dayton designs sold over $300000 yearly New York buyers company produced 1000 Minute Men day limited capacity propcarv ing machine invented employed 50 people shop moving production line little cars riding rails also mentioned cable initial small parts right through packaging stopwatched process Around 1920 learned reduce 50% weight increase painting 5% kits genuine flying machinesl milled cambered wings long balsa planks slicing off like bologna refrigeration room il chilled wood dipped wings diluted fish glue varnished finally painted yellow gook barely penetrated wood also own company Grant late Twenties threw Kinksbury Toys depression victim produce 2000 Silver Arrows day cambered silver-colored wings aluminum ribs hold shape blue twin sticks fuselage small aluminum U-shaped pieces re taining sticks allowing rubber pass 1927 flew 650 feet could buy over America secret sheep dip bluedyed casein glue Its weight increase 2% MAN saw fabled rubber de signs fine articles aerodynamics books now collectors items Charlie design team remarkable Dayton-Wright Racer soon after 1920 responsible both leading edge slats wing flaps60 years ago retract able gear Today can get Peanut kit Hank Struck Jetco Charlie driven illustri ous ancestors mad inventors great grandfather designed Governor DeWitt Clinton John Bull locomotives grand father installed propulsive machinery Monitor Charlie now has revolutionary windmill could affect energy pic turehis light years ahead modern ized Dutch windmills testy us says AMA doesnt something soon about kids hell start own organization loves boys airplane modeling boys camp mid-Twenties late Howard McEntee instructor people like 1935 Wakefield-winner Gordon Light Joe Kovel vacationers keep telling supercharged octegenarian age 68 cant join crusade write monumental man care AMA Head quarters challenge wits Hes demon phone Charlies new book Gateway Aero Science has over 300 pages loaded fine drawings great flying models Distrib uted Poiks available through Supply Service AMA HQ has already writ ten another prints markets things out pocket first class Fittingly initials CG CG Schweizer TG-3/Hiner Continued page 19 National Soaring Records zero AMA record set proves TG-3 will thermal stable can carry full-size baro graph TG-3 easy-to-build easy-to-fly Stand-Off Sport Scale Sailplane bit different average Scale job Because rules use compromised scale accuracy somewhat favor better flying characteristics have aware stopwatch landing tape fly Sport Scale Gliders fact 1979 LSF Tournament Scale birds flew duration also flew speed/distance task TG-3 real fun like building fuselage stringers give some considera tion have problems building TG 3 drop line 2213 Prentice Creek Apt 104 Downers Grove IL 60515 Iwili try help References Soaring May-June 1944 TG-3A Ernest Schweizer AIR TRAILS Spring t 979 Glider Factory Technical Order No 09-3OAB-2 Erection Main108 Model Aviation NEWT-SHIRTS BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 2 oz HOT STUFF XXc LINEE EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec 1/2 OZ jV HOT STUFF GAP FILLING HIGH VISCOSITY-TIMED BOND 10 25 sec Use like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD %ad9t Ca P 0 BOX 836 SIMI CA 93062 522-0062 tenance Instructions TG-3A Glider Schweizer Aircraft Corporation Drawings National Archives Photos Documentary Photography black white 1361 ST Photo Sqd 1221 South Fern St Arlington VA 22202 Omcial USAF photos sale write price list ordering instructions 21298AC Front View XTG-3 21294ACTow Plane XTG-3 Background 21157AC Side View XTG-3 21296ACXTG-3 Takeoff Bungee Cor4 June 1979 Paint TG hy Bob Storck Color Aircraft Yellow Blue Color Insignia White Red Blue Black F0R MRGUSI ent meantime have System Alert refuses buzz turn transmitter off give fix try System FS NODupont NoAlert works time works properly ith systems mod forget 15123 98013about 17875Not critical 111361865H48 15044 17038Not critical Radio Technique/Myers Continued page 23 quick check oscilloscope showed exactly what happening wouldnt need oscilloscope see 6 volt DC meter lOOK resistance would work well Just connect between negative lead black wire signal lead orange wire turn receiver turn transmitter off few times Sometimes voltmeter will read positive volts some times zero transmitter off point may thinking its simple didnt start measure ment cut out other stuff Two reasons 1 didnt think time 2 needed System Alert wiring diagram wanted make worthwhile changes Knowing problem solution ob vious added 001 mfd capacitor series System Alert green wire Vs watt 1 megohm resistor base input transistor ground Ive supplied sketch too capacitor passes pulses blocks DC resistor insures input transistor turns off So buzzer must sound optimum values just values worked Ed says will make change production may turn out differAnother fix some people may want know about following frame-time resistor early Ace RC Silver Seven trans mitter encoders 270K R2 just above NE5044 has changed production 330 K reason change increase frame time l8ms adequate 2 3 4 5-channel receivers 22ms necessary 6- 7-channel re ceivers Paul Edmunds Pauls Re Omaha NE discovered need change fix worked out Paul Holsten Ace RC Mr Edmunds good enough write tell about Tom Runge president Ace good enough write tell change has made production have early models either swap 33OKforthe27OKordowhatldidIputaS6K resistor series 270K provisions shorting out again should need arise As happens sons 4-channel Cannon system uses 16 millisecond frame transmitter receiver servos want fly flight packs Ill need 18 ms option Mismatched frame times can lead poor servo performance Its much easier retime transmitter go inside receiver servo re-time match transmitter beauty S7 its easy make whatever change need Frame time wondering what Im talking about time required complete set control pulses plus required reset pulse Theres sketch illus trating elsewhere column Since control pulse per channel U BOX 3957TORRANCE CA 90510 frame time also period required repe titions control pulse individual servo servo designed stretch its control pulse over full frame time transmitter designed work fore given servo may work poorly another manufacturers transmitter since new transmitter will have time either longer causing servo somewhat sloppy about staying its rest position shorter causing servo act jittery Figur ing out what frame time servo wants can subject another whole column now play mix-and-match various servos suspect frame-time problems dont ploy well together Nats takes over December issue no Radio Technique until next year See George M Myers 70 Froehlich Farm Road Hicks vOle NY 11801 Scale WC/Wischers Continued page 28 Thats international cooperation its finest third Canadian team member Karel Solnicka also radio problems round two flight fortunate Piper Twin Comanche splattered itself vertically onto runway completely destroyed static scoring F4C Precision Scale completed models flown third flying day gusty turbulent windswith threat rain contrasted lack wind enjoyed Standoff fliers previous two days Strong crosswinds encountered times three days F4C flights Seven 20 entries made no flights damaged during takeoff Highest flight score day made Frank Knowles Tiger Moth November 1980 109 9 HL GLIDERS flfl 3 SATELLITE KITS EEE 17OLDTIMEGAS Send 25 5 RUBBER 3 NORDIC 1980 catalog 9 COMPETIT ION GAS FUEL DTTIMERS -$1075 FAI Model Supply
Edition: Model Aviation - 1980/11
Page Numbers: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 108, 109
NO OCR TEXT NO OCR TEXT wood structure D-tube leading edge plywood Rudder elevator fitted trim tabs completed airframe fabric covered fuselage fitted single wheel nose skid TG-3s equipped radio navigation lights first TG-3s painted yellow over blue trim flash fuselage few TG-3s blue fuselages yellow wing tail surfaces National insignia applied both surfaces both wings consisting blue circle white star red ball center star rudder markings consisted vertical dark blue band forward portion 13 hori zontal red-and-white alternating stripes red first underside wings lettered U S right ARMY left middle 1942 overall color changed yellow silver Tests 1941 revealed yellow color reducing fabric life Although some photos silver gliders meatball insignia candy-striped tail deleted June 1942 feared markings could onfused Japanese Rising Sun same time new national insignia meatball added rear fuselage sides November 1942 US Army letter ing wing underside deleted brief times 1943 national insignia outlined red yellow unlikely gliders marked Later wing insignia applied upper right lower left wings horizontal white bars blue borders applied side national insignia As changes came late 1943 glider training project disbanded November very few photos exist configurations Color markings information obtained article June 1979 Bungee Cord Paint TG Bob Storek Bungee Cord fine newsletter put out Vintage Sailplane Association 6053 25th Rd N Arlington VA 22207 Any model builder interested old gliders should consider joining organization Back didnt use scale grass must real thing Scenes XTG-3 flight test program Wright Field 1942 look cars background careful look paint schemes reveals photos least two different airplanes onlythree XTG-3s built models paint scheme same lower picture issues Bungee Cord can obtained VSA Bob Storck VSAs archivist can provide VSA members information photos TG-series gliders end war surviving TG-3s sold surplus After war TG-3 credited setting holding US duration record extensive period number TG 3s still flying today Air Force Museum gathering information TG-3s 1975 restoration project hopefully TG-3 will some day display Also member Vintage Sailplane Association restoring TG-3 authentic training paint job TG-3 natural Stand-Off Sport Scale Its slab-sided stringered fuselage easy duplicate squared-off empen nage ship has no wing fillets struts worry about canopy simply built out flat sheets biggest advantage TG-3 modeling November 1980 1 3 Flight shots model See much improvementthere illusion reality putcrewfigures cockpit Jackdeparted scale wing dihedralhe put slight amount polyhedral starting point sharp taper-break wing planform hardly noticeable photos Pictures Dan Pruss John Czeszak men olan vviaon snows prelerreu meingo oi naming toe moueu ior iaunch must also keep tension thetow bridles tow ring will slip off either two wing-mounted towhooks right glider climbs out tow rope Note retrieval chute Jack has never tow problem some 200 flights using twin-bridle system wing geometry wing planform full-size prototype close used average sport RC glider TG-3 has aspect ratio 123-to-i relatively large dihedral 4 degrees per wing Also wing has constant-chord main panels moderate taper tip panels About thing missing polyhedral features add up RC model strong wing plenty area good stability excellent tow characteristics no nasty tip stalls TG-3 Construction Before beginning like cut out wing ribs fuselage bulkheads Make template fuselage keel Out 015 clearplastic sheetthis way dont have cut up plans Using template cut out keel Lite Ply After plywood wing ribs cut out holes drilled tubes use wing root rib template drill holes fuselage plywood wing mounting plates Now good time make up some leading edge material out spruce Dremels new table saw fine blade works well dont have access table saw taper spruce strips razor plane correct angle leading edges band saw can also used shape leading edge stock Wing Construction borrowed Aquila like build tip panels first complete plywood dihedral braces sure build washout very important easy-tofly glider Now block up tip panel per plans build main panel onto tip panel used aliphatic resin construction exception wing tubes plywood wing webs use slow-setting epoxy also use slowsetting epoxy glue spruce filler between wing tubes spar makes strong wing gives adequate wood attach tow hooks Also add a webs between end wing tubes next wing rib order 1 4 Model Aviation Nose ribs added duplicate appearance OS prototypes curved steel tube fuselage structure Like keel plywood An overall view nose structure wheel well plywood wing mounting plate show up well aft fuselage showing pushrod exit stabilizer mounting bolts closer lOOK lower tuselage construction Neat compact radio installation Servos rudder elevator spoilers center Antenna housed outer Nyrod tube epoxied side ne ar om tne spruce strip located Just below oetween tne pushrods screw eye used guide spoiler actuation lines turning 90 attach servo ILAI N /8 BALSA FLOOR /8 SIG LITE-PLY KEEL 1 & K /6 BALSA VERTICAL WEB -NOSE TO TAIL 1/8 PLYWXID FLOOR AND FORMERS BLOCKS AND HOOKS FOR3/16K 3/B316 DOWELBOWS LAMINATED JJBLE RUBBER BANDSSPRUCE STAYSROLL BARS ALL /8 X 3/4 SPRL2~ RAILS TO F-3 NOSE FORMERS 12 22 I/B SIG LITE-PLY ONE PIECE KEEL SEE ABOVE 1/16 \BALSA I/B BALSA F I/4SO\\\\ CROSS GR17~ PLYWOOD WEBS SPRUCE FRONTAND BACK Fl I/B PLYI/BPLYWOOTOTHIS BAY FORMERFORMERS RUBBER I/B X 3/4 SPRUCE LAMINATED FOR IDBLOCKS3 1/2 DU-BRO WHEEL ON MUSIC W BOLTS THRJ BLOCK FB 110 4 ALL INTO T -NUTSI/U SIG LITE PLY 1/4 50 SPRUCE STRINGERS NYLON TUBE DU-BRO 2-56 SOCIETSET THRU V2 mWELS 3/8 BALSA WEB ON I/2BALSA DECI F 3 I/B PLYWOCO 3A6 SO SPRUCE BENTTO KEEL 3/B 50BALSA 3/B K 1/2 50 BALSA 3/B BALSA SHEET VB SPRUCE ______________ I/B PLYWOOD LAMINATED 10 I/16PLYWOCO FOR WING MOUNT tI \ 090 MUSIC WIRE 3/32 BALSA STRUTS ON 3/32 WEBS 3/B K 1/2 BALSATIPS I/B X 1/4 SPRUCETE /4K 3/8 BALSA ALL RIBS 3/BX 1/2 RUcOER BASE I/BX 1/4 T E KRAFT SHORT HORN 3/BK 1/2 BALSATIPS SU-PR-UNE CLEVISlO HORN 3A6 SO SPRUCE OUlSIDE3/BBALSA NDSETOTAILIIOPONIYINSIDEALL FRAMING 1/4 K /2 BALSA LAMINATED KEEL 1/16K I/2SHrTETOPAND BOTlOM RODS INTO 250 10 BRASS FRONTONE IMBED IN SPRJCE 3/d K I/i BALSA SPOILER F84 DIAGONAL BRACE SAME AS SPAR 3/32 WEBS I/B PLYWOOD JOINER IN LE I/B PLYWOOD JONER PLATE FRONT AND BACK 1/16 BALSA WEBS FRONT AND BACK OF SRAR SOUD BALSA TIPS 1A6 K I/4CAP STRIrS TOPAND BOTIi I/8PLYwOOD TIP SKID 1/16 BALSA ALL RIBS1/16 SHEET lOPAND rroM L E 3A6 K 3/B SPRUCE SPAR 1OPANDBO1TOM I/4X 3/BBALSA LEDGE SOJCE 4x* SPRucR SECTION A-A1 RYPIcAL CROSSECTION SPORT PILOT SHOWN / F F OP MEHIR RROM* FLY FT2 NOTCUES FOR CO FORMER PRIM RPR OP BOTTOM MANE BOTH FROMj PAY BB3 DWBT P50 0 j 00 STROLL Sq SPRIHCA 4RQ SPRUCE RE5R TRIM TO FIT* PLY CANOPY PLODS A.PRO M MAST ER 50FFRRT USE IS ROTH CANOPY I-SEOMEOTS /jFTCFT 5 c-I F-ri WSRLUMINUM 1-- -1Fa ---7--F0FS 0 RBRR-TRIM TO PITB PRO M MASTER OUTLINEFB4 FBI RHEEBE FBS F3 KI restrain wing wires tubes cheated added small amount polydihedral taper break order get glider turn properly ailerons polydihedral could eliminated func tioning ailerons added would suggest coup ling rudder ailerons use about 30 degrees rudder throw small aileron deflection best results Another possibility try would coupled spoilers rudder together scale dihedral right turn would use right rudder right spoiler have tried other gliders works well Rub baby oil wing plan make paper transparent turn over plan build second half wing Tail surfaces much needs said about tail surfaces construction rather simple ItTs good idea make horizontal stabilizer removable fuselage transportation storage purposes cut taper rudder elevator ribs razor saw Cut little oversize dress down sanding block Use sheet metal screws attach control horns plywood mounts Fuselage Lay down three main longerons over plans pin place Allow bottom longeron extend rear former F3 Right left bottom longerons will later pulled together meet rear fuselage keel Add 1/16 balsa webbing longeron shown plans After glue dries remove plans mark position sides Fl F2 F3 Now add spruce strips inside fuselage sides leaving gaps formers Turn plans over rub baby oil build other side Glue formers Fl F2 F3 dry pull tail together glue Add bottom crossgrain sheeting Fl F3 Pull bottom longerons together meet rear keel Add cross-grain sheeting Add cross braces turtle-deck former position maintain correct width Add spruce strips bottom sheeting between Fl F3 front ofFi key keel Next glue turtledeck formers stringers Add stab mounting structure epoxying blind nuts mounting Glue keel former FTI Glue 1/16 balsa wheel-well followed i plywood wheel sides Add sub-bulkheads keel associated stringers Now add spruce tail post Add stringer rear keel tailpost Next add three vertical grained braces between bottom rear longeron box structure Fit add plywood plates wing mounting Make sure right left plates lined up accurately fore aft Now epoxy wing support tubes fuselage wings wires 1 6 Model Aviation IIcANOPYKuPOR-TII jJ9REIoIRsO ROD RUCE STRIPS sq LAMINATE FUY ANDjPLT FNT FORMER REQUIRED jRIBLITEFLY MARE ALL TR PORMERS EROM * SE * HII LORSTOS OP SPRUCE IRS O DUIRE SECTION B-B r T FULL-SIZE PLANS AVAILABLE . SEE PAGE 128 ICOECISEE F5FI7 MARSYUBA fl5 PROM F FTR 3 444 BALSA 00*005 SYR REESE MARS ALL C SULRI4EAOS FREESPLY SPRUCE j BALSA IBEPY FT7IOUR CORN Fre FT9 c C z r PUSASBOR Err 00100 IS BUILTQZE~ ly 30CM 0051St OSQBSC W hp 30GB WESt NERE hp 35CTION C-C PLY MOUNTING SIJPBUPS PROBUCTS 010015 ASSOUBLY rORO$OUEIO OCR j PLY place ensure proper alignment Glue balsa bottom wing tubes floor fuse Next add 12 Sig Lite-Ply nose ribs trim fit individually wheel added until fuselage covered After covering cut out wheel-well cut small hole covering order insert brass tubing wheel axle Place wheel well insert axle using dab epoxy keep axle backing out small covering patch over axle access hole completes step skid laminated two strips spruce Use slow-setting epoxy glue Mold curve aid jig made finishing nails nailed board Canopy Make a forms mold canopy bows around Laminate two strips 1/16 X spruce strips canopy bows Use slow-setting epoxy allow cure 24 hours Make November 1980 1 7 * BALSA * 044 SPRUCE 44 BALSA OSNOTES PREL OUTLINE * SI 1BALSA WEB Rear view spoilers shows typical Aquilatype linkage fine spring undertension return spoilers closed position VSET fl04405000PO ippP40 Ut W V7 -- 4-4 ri SMUtS 3-pPOiYUtPPOU F -I II-r76 aK F IIi ipo SECTION 0-0 o o - 3 0 44 05047 70 NOtE CflNG PIES t S AEt MOOS PROM PLO SECTION E-E SECTION F-F 10 II 4 S IT I0 POLYHEDRAL DOUBLER U RSI4IJIREO ft SALA Si plywood canopy base fore aft sections Glue forming bottom bases key canopy assembly accurately fuselage Epoxy instrument panel rear bulkhead canopy bases Notch canopy bases accept bows Epoxy bows base after trimming required length Epoxy hardwood dowels simulate roll-over structure full-size aircraft canopies left natural color aluminum Paint canopy frames silver epoxy after filling thinnedout Stuff Epoxy paint gives superior adhesion important servo mounting tape used attach pilots canopy base Add instru ment panel detailing desired point cluster instruments instructor riding back seat located roll-over cage Cut out canopy sections heavy sheet acetate rear canopy piece front canopy three pieces attached plastic canopy base 3M clear plastic tape Tape canopy side base rolling over bows tape other side base Wrap approximately -in tape around bottom canopy base ensure good adhesion front canopy section attach rear acetate piece first followed center section front section last way slipstream cant get under canopy sections during flight might otherwise rip off section Covering suggest using super MonoKote plans three-view drawing depict all-silver version easy route just cover air frame silver MonoKote cut tail numbers out black trim MonoKote Insignia also can made out blue white trim MonoKote go earlier yellow color scheme additional markings can made trim MonoKote Spray paint light blue fuselage flash epoxy paint after cleaning area painted thinner Trim tape used outline trim tabs ailerons dive brakes bottom wings Flying Now come fun part Dont worry about weight too much TG-3 weighed 7 pounds ready-to-fly plans show fore aft center-of-gravity CG posi tions Use forward position initial test flights continue using forward CG until feel comfortable launch have confidence glider As soon possible move aft center-of-gravity position glider will thermal better configuration aft CG TG-3 does beautiful spins have enough control surface movement like use spin lose altitude after working up max ship could just spiral down use spoilers dive TG-3 18 Model Aviation F I1ff FULL-SIZE PLANS AVAILABLE . SEE PAGE 128 YOP4 0tTOM 00150 000570405BALSA La TOP 4 BOrTOTA 101SPOOLS5000 TOP * BOTTOM i III 77- r V4IiI II _-t IIIII II IIIii Ii IIII I IIII IIII IIII III IIII IIIiiIS q LbIlls __nr ~iI 1OOftt flAW ASA 700 4001700 SOIM TOO TO JASHOIJT PIN DOWN $ 000041 INNER S a-ITO PLY 66 Ni 0007 BALSA 01005 cY SECTION GG 0005 010 twOtOi TIP OSlO 4 010 10 TUBE r t0i AT 040 5 40104046 501146 MOTIONS _ 4 _________ NTAL STABILIZ&R 0 THROB VIEW D353N1146 SCI4WEIZ&R rss SHEET ca looks neat spinning down few comments about launch technique First make up towing bridle approximately three feet long like use heavier line used winch Tie tow ring end two 3-ft lengths line Tie remaining end two lines large snap swiveL Using atowingbridle wing-mounted tow hooks have never towing problem approximately 200 flights first flight get someone assist launching preferably person has flown large glider such Sailair Astro Jeff Aquila XL will know much line tension required launch Let helper launch airplane concentrate operating winch flying Because fuselage size airfoil used TG-3 has lot drag lift-overdrag ratio nothing brag about Also sink rate higher average RC sport glider Due higher drag TG-3 does like tight circles thermalling keep circles lift bit larger normal added drag has advantage makes easy landings talk about drag might get impression TG-3 real turkey isnt lift TG-3 will go up fact early summer 1979 two flights over hour duration flat-land flying site help thermal sniffer end summer installed thermal sniffer built little larger wing order make altitude attempt National AMA RC Soaring Record FAI World Record Replogle barograph rode back seat Allup weight 10 pounds 14 ounces paperwork accomplished record try over Labor Day weekend Saturday Sunday weather did cooperate Monday better light winds scattered fair-weather cumulus clouds Aviation Weathefs forecast called cloud base 2000 3000 feet morning moving up 3000 4000 feet later day hoping cloud base 5000 6000 feet During late morning early afternoon number flights made reached 2000 feet Mound 200 pm finally got TG-3 up 3400 feet point TG-3 entered large cumulus let old bird fly cloud few seconds deployed spoilers down mm few seconds TG-3 reappeared driving out bottom cloud Conditions didnt get better day 3400 feet highest altitude recorded wasnt enough FAI World Record since AMA Continued page 108 November 198019 SIMIlAR WINS 1St PLACEPATTERN PRE-NOVICE 1979 WINTER NATS SIMIlAR NEW . SI MI TAR SIMIlAR SIMITAR SPORT SIMIlAR l9-40PowerS0lnehSpan Standard Kit Includes SIMITARPly Wing Sheeting Fuselage SIMIlARFoam Coress SIMITARGear Formed Sliding Tray SI MI TARFull Site Plans SIMITAR WINS 1st PLACENORTHROP FLYING WING CONTEST 1979 High Quality 1000 Cutton $ 95 Multi-color Silkscreen6 Sites 5 M L & XL Eleck Rider Yellow Plus $100 Astron Light Blue Shipping Similar 540 Tan Charge SFF YOUR DEALER OR ORDER ROM BILL EVANS 20825K ROSCOE BLVD CANOGA PARK CA 91306 / TEL 213 344-6391 OR 709-0894 tougher proposition achieve ment stability twin pushers day Charlie put dihedral canard surface added small vertical fin atop flew arrow straight Later upset pusher world winning big meets sensational tractors Incidentally timed early gas meet Tecterboro NJ 1933 34 Leo Weiss Frank Tlush Frank Ehling Charlie Grant Joe Kovel among perhaps dozen entrantsthe sky filled twinpusher rubber jobs climbed like javelins got time lone rubber modeler diamond fuselage tractor turned winning flight four-plus Hank Struck Charlie equally prominent full-scale aviation prolific inventor revolutionary designeryoull find him some history books about air racing devoted chapter him holds valuable patents always fighter won law suit against Martin 202 airlinerthey paid royalty hired him settlement deltas possi bly before world-famous Dr Lippisch ever thought segmented flap Charlies idea Nobody able solve riddle spinning flap Charlie has burnt enough keep secret him self answer lies mechanics 1910 Charlie jumping off roof tiny hang gliderhe weighed 100 pounds sopping wetand sailing out over slop ing meadow hundreds feet first air plane Vermont thinks tried first bike hit downhill bump un ceremoniously airborne about 35 feet ashes over teakettle picked gravel out empennage three weeks biggie model plane manu facturing before 1920 salesman Ritchie Wertz Dayton designs sold over $300000 yearly New York buyers company produced 1000 Minute Men day limited capacity propcarv ing machine invented employed 50 people shop moving production line little cars riding rails also mentioned cable initial small parts right through packaging stopwatched process Around 1920 learned reduce 50% weight increase painting 5% kits genuine flying machinesl milled cambered wings long balsa planks slicing off like bologna refrigeration room il chilled wood dipped wings diluted fish glue varnished finally painted yellow gook barely penetrated wood also own company Grant late Twenties threw Kinksbury Toys depression victim produce 2000 Silver Arrows day cambered silver-colored wings aluminum ribs hold shape blue twin sticks fuselage small aluminum U-shaped pieces re taining sticks allowing rubber pass 1927 flew 650 feet could buy over America secret sheep dip bluedyed casein glue Its weight increase 2% MAN saw fabled rubber de signs fine articles aerodynamics books now collectors items Charlie design team remarkable Dayton-Wright Racer soon after 1920 responsible both leading edge slats wing flaps60 years ago retract able gear Today can get Peanut kit Hank Struck Jetco Charlie driven illustri ous ancestors mad inventors great grandfather designed Governor DeWitt Clinton John Bull locomotives grand father installed propulsive machinery Monitor Charlie now has revolutionary windmill could affect energy pic turehis light years ahead modern ized Dutch windmills testy us says AMA doesnt something soon about kids hell start own organization loves boys airplane modeling boys camp mid-Twenties late Howard McEntee instructor people like 1935 Wakefield-winner Gordon Light Joe Kovel vacationers keep telling supercharged octegenarian age 68 cant join crusade write monumental man care AMA Head quarters challenge wits Hes demon phone Charlies new book Gateway Aero Science has over 300 pages loaded fine drawings great flying models Distrib uted Poiks available through Supply Service AMA HQ has already writ ten another prints markets things out pocket first class Fittingly initials CG CG Schweizer TG-3/Hiner Continued page 19 National Soaring Records zero AMA record set proves TG-3 will thermal stable can carry full-size baro graph TG-3 easy-to-build easy-to-fly Stand-Off Sport Scale Sailplane bit different average Scale job Because rules use compromised scale accuracy somewhat favor better flying characteristics have aware stopwatch landing tape fly Sport Scale Gliders fact 1979 LSF Tournament Scale birds flew duration also flew speed/distance task TG-3 real fun like building fuselage stringers give some considera tion have problems building TG 3 drop line 2213 Prentice Creek Apt 104 Downers Grove IL 60515 Iwili try help References Soaring May-June 1944 TG-3A Ernest Schweizer AIR TRAILS Spring t 979 Glider Factory Technical Order No 09-3OAB-2 Erection Main108 Model Aviation NEWT-SHIRTS BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 2 oz HOT STUFF XXc LINEE EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec 1/2 OZ jV HOT STUFF GAP FILLING HIGH VISCOSITY-TIMED BOND 10 25 sec Use like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD %ad9t Ca P 0 BOX 836 SIMI CA 93062 522-0062 tenance Instructions TG-3A Glider Schweizer Aircraft Corporation Drawings National Archives Photos Documentary Photography black white 1361 ST Photo Sqd 1221 South Fern St Arlington VA 22202 Omcial USAF photos sale write price list ordering instructions 21298AC Front View XTG-3 21294ACTow Plane XTG-3 Background 21157AC Side View XTG-3 21296ACXTG-3 Takeoff Bungee Cor4 June 1979 Paint TG hy Bob Storck Color Aircraft Yellow Blue Color Insignia White Red Blue Black F0R MRGUSI ent meantime have System Alert refuses buzz turn transmitter off give fix try System FS NODupont NoAlert works time works properly ith systems mod forget 15123 98013about 17875Not critical 111361865H48 15044 17038Not critical Radio Technique/Myers Continued page 23 quick check oscilloscope showed exactly what happening wouldnt need oscilloscope see 6 volt DC meter lOOK resistance would work well Just connect between negative lead black wire signal lead orange wire turn receiver turn transmitter off few times Sometimes voltmeter will read positive volts some times zero transmitter off point may thinking its simple didnt start measure ment cut out other stuff Two reasons 1 didnt think time 2 needed System Alert wiring diagram wanted make worthwhile changes Knowing problem solution ob vious added 001 mfd capacitor series System Alert green wire Vs watt 1 megohm resistor base input transistor ground Ive supplied sketch too capacitor passes pulses blocks DC resistor insures input transistor turns off So buzzer must sound optimum values just values worked Ed says will make change production may turn out differAnother fix some people may want know about following frame-time resistor early Ace RC Silver Seven trans mitter encoders 270K R2 just above NE5044 has changed production 330 K reason change increase frame time l8ms adequate 2 3 4 5-channel receivers 22ms necessary 6- 7-channel re ceivers Paul Edmunds Pauls Re Omaha NE discovered need change fix worked out Paul Holsten Ace RC Mr Edmunds good enough write tell about Tom Runge president Ace good enough write tell change has made production have early models either swap 33OKforthe27OKordowhatldidIputaS6K resistor series 270K provisions shorting out again should need arise As happens sons 4-channel Cannon system uses 16 millisecond frame transmitter receiver servos want fly flight packs Ill need 18 ms option Mismatched frame times can lead poor servo performance Its much easier retime transmitter go inside receiver servo re-time match transmitter beauty S7 its easy make whatever change need Frame time wondering what Im talking about time required complete set control pulses plus required reset pulse Theres sketch illus trating elsewhere column Since control pulse per channel U BOX 3957TORRANCE CA 90510 frame time also period required repe titions control pulse individual servo servo designed stretch its control pulse over full frame time transmitter designed work fore given servo may work poorly another manufacturers transmitter since new transmitter will have time either longer causing servo somewhat sloppy about staying its rest position shorter causing servo act jittery Figur ing out what frame time servo wants can subject another whole column now play mix-and-match various servos suspect frame-time problems dont ploy well together Nats takes over December issue no Radio Technique until next year See George M Myers 70 Froehlich Farm Road Hicks vOle NY 11801 Scale WC/Wischers Continued page 28 Thats international cooperation its finest third Canadian team member Karel Solnicka also radio problems round two flight fortunate Piper Twin Comanche splattered itself vertically onto runway completely destroyed static scoring F4C Precision Scale completed models flown third flying day gusty turbulent windswith threat rain contrasted lack wind enjoyed Standoff fliers previous two days Strong crosswinds encountered times three days F4C flights Seven 20 entries made no flights damaged during takeoff Highest flight score day made Frank Knowles Tiger Moth November 1980 109 9 HL GLIDERS flfl 3 SATELLITE KITS EEE 17OLDTIMEGAS Send 25 5 RUBBER 3 NORDIC 1980 catalog 9 COMPETIT ION GAS FUEL DTTIMERS -$1075 FAI Model Supply