Right Firstclass scout Timothy J Myers presents finished B-i has merit badge full-size aircraft would believe Boy Scouts no longer offer merit badges model airplanes Below Build tail set up control arrangements try size flat bottom airplane Bottom Fuselage sides place right inner panel covered Fillet formers place right wing cover left wing shows internal details radical looking new Air Force bomber makes surprisingly good-flying RC model George M Myers ON DECEMBER 23 1974 B-i/Air Vehicle No 1 lifted off runway Palmdale CA 85-minute flight Air Force Flight Test Center Ed wards Air Force Base CA During flight variable sweep wings kept full forward position l50sweepback landing gear kept down locked Gross weight brake release 280000 pounds maximum speed flight 190 knots model represents aircraft particular instant time tended Sport Scale usage large enough accept radio equipment has sized around l/2A pylon racer rules will accept members L M Cox family engines 049 through 15 cubic inch displacement should make attractive hundreds thousands engine owners can use everything plans good 15 use snialler motors have weight sensitive Leave off landing gear 09 hand launch will look better flight anyhow go 049 use lightweight 2-servo airborne unit build very light Dont put landing-gear blocks consider replac ing nacelles silhouettes cut 1/8 balsa stuck wing model scaled photographs published various issues Aviation Week & Space Technology several deviations scale have included model Fixed wings rather variable sweep Thick wings match racer June 1976 31 12 \ AFT WING SKIN-I/IS SHT HATCH LINE EIi ~yjj k 1/4 SHE BALSA NATION -- II FVIEW B FUSELAGE AFT STATIONS F1F1 urnLJLJ BESSCRAP SHE BALSA1/4 SHE BALSA TOP ESCAPE CAPSILE OUTLINE n7 FLOOR JOINT -4PLC& R-S 1/4 XS/B 1/4 XS/B U123 Inches FUSELAGE SIDE --N-3 552 PYLON BRAND N-SF-II -TANK NI_____--N-4 Ii FUSELAGE FLOOR-SEE SHE SOFJ RAOIO COMPARTMENT HATCH F-S F-S R F _____ j FLAPERON BLOCK Iii II 10-35 NYLON BOLT SPRUCEliii TRAILING EDGE TOP SKIN LINE BOTTOM WING COVER NACELLE KEY IN BOTTOM WING COVER L4] UI] LEADING EDGE DETAIL R-BSEESHTSSBS II muI4-i i~BOT TOM SERVO TYPE MDUNTINGflGEAR B NACELLE CLIPWING COVER SCREWS-B REDO I-S/B DIA WHEELSDEONUE MMYENU B REOD IN VEHICLE NO1 w I3 0 0 CD 0 0 NOTE THE SYMBOL GDENOTES GRAIN DIRECTION OF BALSA WOOD PARTS STIlE SYMBOL TES FUSELAGE TOP OUTLINE NOSE DETAB M CDX 15 ENGINE BLACK TRIM FWD WING SKIN-I/IS SHE -~WING SKIN JOINT N-I--__ ABC FAIRING LINE I11CUT 01EFG SKIN FOR CLEARANCEL7/j714/]1k frnrmANGIA7JDC1 I/4X1/S SPRUCE I I/iS SHT PLYWOOD IIj FUSELAGE SIOEA IK N-T 5/32 DIA DURAL TUBE 2 455 215MODIFIED CG SL-ISS STEERING ARM LLOYD VBUNT INSTALL OORSAL AFTER SHAPING TOP B FIN 59 TUBING JIJ-FUEL /mN---3/4DIA WHEELS S REDO NOTE FOR LARDING GEAR DETAILS SEE SIlT 30F3 F-4 SHT 0F3 B-i rules Enlarged stabilator area stability increased control authority Commercial Spinner replacing radome air data probe commonsense safety precaution wing inboard panel trailing edges have faired completion permit /2A flying nacelles landing gear third servo motor propeller nose response lack suitable sizes jet turbines hobby market plan using larger engines plan add scale details ex pect finished weight around 44 ounces table below presents some compari sons may find interesting Iteml/2A Racer049 B-i15 B-iOM Racer Engine049/051 049 15 t oz 2010 32 4 40 sin Wing Area 200 sin 327 327300 sin Cross Sect85 sin1051052-1/2x5 CONSTRUCTION Begin buying necessary mate rials cut out parts work will go much faster make up kit yourself Pick C-grain balsa 4 5 pounds per cu ft stock Contest Grade wood planning build 049 engine Use 8- 9-pound stock 15 engines Start splitting foam wing stalling spar Any sharp knife will job use straight-edge guide cut make passes rather trying first cut Foam also cuts easily under saws Shaping wing tips easy trace upper lower outlines respective sur faces cut between razor taking small cuts approach lines Next list will fuselage Clear flattest spot building board tape down piece unwrinkled brown wrapping paper Lay out fullsize pattern fuselage bottom using dimensions shown plan Build up fuselage pattern because building over plans makes hard read main thing remember measure everything twice before cutting once Fit fuselage parts together before gluing anything keep checking left- right-hand parts make sure same size install fuselage top until have completed fin horizontal tail control mechanism inside put wing skins before completing Flaperon tor que tube installations install fillets before have completed servo installations Got used stabilator setup half horizontal tail moves independ ently roll control move same direction pitch control scale airplane hardly worth effort plans show flying tail setup horizontal tail moves unit Its much simpler build will fly same Just make sure servo can give 150up-and-down motion measured leading edge stabilator next fin Make up tail assembly install shown plans During construction secure CG SA-l steering arms drilling /s holes torque tubes receive locking screw Drive screw tube secure against backing out dab epoxy Next list radio installation Once again plans show easy way used setup permitted aft ser vo pushed back forth forward servos order provide mixed pitch roll inputs stabil ator servo mounted hollow square cut 1/8 plywood bound epoxied 5/16 inside diameter aluminum tubes slide over 5/16 outside diameter brass tubes epoxied spruce beams laid across floor beams photos should make clear sug gestion use separate solidlymounted servos ailerons flying tail shown plans rate important thing get done before try install aft fairing covers will make area rather inaccessible Mount engine tank crutch June1976 33 Spruce beams added built-up tail cone prog ress Note aileron torque-tube installation SA-1 installed fillet area make room foam sleeve protecting receiver Nose block assembly built up around engine tank using bits sheet balsa Plywood flanges added later insure good gluing surface made available ANTI WARP TIP OPTIONAL /LATOR _-ABALSA BLOCK CONE -SLOT -- -fHSYM I/B PLY LAM/RAT/ONPR/i EBOND STAB SECT9/32 OIL BRASS TUBESEE TEXT SECT AA SECT B-B K K MTG hOLES FOR CL/PS w NO 335 S/IT BALSA NC 3/35 PLYWOOD 3/35 S/IT BALSA 2/IT BALSA BOTTOM NACELLE STAT/ONS SAND AS S/IOWN~A ---4 NACELLE ASSEMBLY B DETAILS NOTE CUTOUT NA B NB SIDES FROM FROM 1/4 S/IT BALSA NANB NACELLE KEY-3/3S S/IT BALSA 0 .-NA NF S/IT NiJJ4REq NB BLACK TRM SANG TO MATCH TE OF W/NG NEI/lB S/IT CAP S/IT ~If- BALSA NF 3-B TIP FA/RING OPTIONAL RUDDER SECT //IB S/IT BALSA 34 U END OF FLOOR 3/ 0I23 InCh FRONT VIEW OF WING PANEL- NOTE DIM AT YE OF WING TIP/TRAIL/NO EDGEji7&i/EL LINE-f BOTTOM WING COVER ///IE S/IT BALSA S REDO i ID STATIONSTI/RU CONE ACE TIP TIP FAIRING DETAIL 456 0 0 CD 0 0 1/4 TRIANGULAR STOCK 32 SIlT BALSA T ND LE7Zi7G- OF BEND flTT1.DR/LL T/IRU TO IBATCH 17fJ7JMOEJNT/NG SCREWS NACELLE BLANORIG GEAR CLIP 020 DURAL -4 REOb B NE-I/IN S/IT BALSANF 1/4 S/IT BALSA FLAT PATTERN SECT A-A~NOTE BAD 5//B 50-SAND ROUNDA /I B-i build up around scraps a sheet Leave carving until later its joined fuselage Something engine side crutch will have removable allow service dont know what engine will use Ill leave invent what need assembly com plete including provisions nose gear remove nose gear install rest front end fuselage Id like suggest use Hobbypoxy Formula adhesive plywood parts aliphatic resin like Titebond balsa working area Mark perimeter fillets lightly wing inner panel upper covers trim edge fuselage corre sponding slope provide gluing sur face fairing covers Cut triangles 1/16 balsa sheet grain parallel long edge install loca tions shown Always leave some setback line accommodate thick ness covers should tapered fit wing skins Glue covers place blend wing fuselage Plastic Wood Eoxolite get correct mistakes point Add doubler 1/16 balsa behind joint FS 215 finish wont making cracks did Mount a fuselage top make up hatch radio compart ment plans show way may need something else accommodate radio structure should strong enough accept reasonable hatch long dont cut up wing spar Install cabin blocks dont hollow out lightness main structural path engine loads goes through cabin area need wood can get particularly using larger engines last can what youve waiting impatiently ve have included sections fuselage should trace onto file cards Make station per card cut out inside Mark upper lower centerlines label card its station number have never done carv ing before its fun its easy begin whacking off corners taking short cuts stiff blade avoid splitting wood Now go back whack off new corners taking smaller cuts Check progress station cutouts guide cut next As ap proach final shape switch coarse sandpaper finer grades Make correc tions old friend Plastic Wood Man thats beautiful dont know model builder worthy name isnt turned nicely blended flowing lines thats what model has cant stand suspense glue wings dont install horizontal tail flaperons Weve got protect torque rod exit points finish materials little blending can sit back admire Build up nacelles like miniature fuselages fit wing lower surfaces want little carving thats done Now fun part Practically dislikes bending music wire can done some tools can make easier Get yourself copy Hard-to-find-Tools Brookstone Company Peterborough NH 03458 Look up items 1-23366 I23374 Extra-Hard Cutters spring wire bought theyre great Also see items U-16493 U-20180 Ive never tried hut look like could helpful Item U-15909 silver solder flux does superlative job bonding music wire brass tubes Allcraft Tool Supply Co Inc 215 Park Avenue Hicksville NY 11801 ob tain 3-prong plier item lB-b hollow-chop plier item IB-13 local hardware store obtain Vise-grip lever-action pliers made Peterson June 1976 35 Fuselage top cabin blocks added nose assembly model scaled 1/2A Pylon size recommended engine Cox 15 less power observe weights tips given text wing panels completed other shown comes Ace kit foam wing finished panel aileron torque tube shown installed Model has no vices flight BF-2 PVSELAGE SlOE PATTERN -3/32 SHY BALSA S REDO IFLAPERON BLOCK LOCATION RIBS"UTOUT TO MA TCH FUSELAGE SVES NOrTON Li~#I R-I WING COVER RIBS R-I THRO R-5 ARE I/IN SHY BALSA EXCEPT WHERE NOTED CUT THNU FOR 5/32 DIA TUBE LG BLOCK N-B REMOVE AFTER ASSEMBLY N 3 I/B SlIT BALSA R-4N-i R-6-I/3B PLYWOODDRILL THRU FOR 5/32 DIA TUBE SLIP FIT HOLE /1/I SHY BALSA N-I-FWD FAIRING COVER SNEDO N-i-I/B PLYWOOD N- 1/32 PLYWOOD SNED 0 G I/IN SlIT BALSA 02 CENTER FARNO COVER BRED 0 LGyRUTj i1L N 4 BPLY WOOD N-S 1/4 PLYWOOD TANK E2f -------- I -STA 215CUT T CUT THRUP/RBEVEL LINEiF-4 7§jJj4PLYWOJ F-3FORK F-4 -3/SB SHT BALSAF-2-3/JB SHT BALSA DRILL TAWU FOR 5/32 DIA TUBE SLIP FIT HOLE-BLOCKN-I-I/iS PLY1/4 SHT SPRUCE 4 REDO N-5-I/4 PLYWOOD JOINT2GI~FUSELAGE SIDE T2ii7 G- GRAIN DIRECTION FOR ALL RIBS SHDVN-SREOD OF EACH TYPE FUSE FLOOR F-3- I/N SHY BALSA 0I23 ABC0E FB FORMERS THRUM AREI/IN N-B -1/32 PLYWOODTYP GRAM DIRECTIORSHY BALSA 2 REDO,-JCINTTYP5PLCS 12-7/B I1KFRORT J__ LMSTA21B IS-I/B BB-T/B TRIM TO MATCH FUSE 'FUSELAGE FLOOR LAYOUT I/B SHY BALSA-I/4 SCALE SHOWN P-i-AFT FAMING COVER 2 REDO N-4 SILVER SOLDER iPLCS NOTE SEE TEXT FOR BEAMST/iSSB/iS ASSEMBLY DETAILS NOSE GEAR ASSEMBLY LG BLOCK ~1--I/BDIABRASS' BICYCLE-TUBE 3REGD Li SPOCKIMAIN GEAR LEG SNEODI/I6DIABRASS TUBE S 3/iS MW WASHER REDO ERS TUBE ID TO REDO MATCH BOLT WHEEL COLLAR 4Ij~ SLIP FITMAIN WHEEL BEAM SNEOD [jSHTi 0F3 F-I Mfg Co Dewitt NB Now e quipped made landing gear Incidentally free plugs benefit good tools paid cash dont find everywhere look Now youre ready work cut brass tube parts rolling tubes back forth workbench pressing down pocket-knife blade Keep fingers away cutting edge because tubes will sepa rate abruptly leaving nicely finished sur face Cut bend wire parts tools above Before soldering main gear walking beam assemblies make jig axles drilling three holes piece wood along straight line 1/8 diameter first two holes 27/32 apart third 29/32 Install 1 lengths /8 diam eter aluminum tubing holes support brass tubes form bearings axles Aluminum used because solder wont stick As semble wires tubes support proper alignment scraps balsa Make sure wire doesnt fit tightly aluminum tubes bent inward happens assembly will want roll circle finished thats bad Now silver-solder joints getting nice complete fillet joint can 27 Watt 6500F iron such used radio work will enough heat might mention couldnt find source reasonably scale wheels used slot car wheels T-5 made Twinn-K Inc Box 31228 Indianapolis Finishing decorating completed bot torn view shows methods attaching nacelles Main wheels slot-car T-5 Twinn K Inc nose wheels Super Jet ISee text IN 46231 sold card under name AJs Min-i-ture Car Racing Parts main wheels used eter Super Jet wheels Super Jet 826 Conklin St East Farmingdale NY 11735 nose wheels Shop around bit might find something better use slot car wheels talk man get something made last two years because older wheels poorer bond ing tires will spin off landing Use wheel collars left side plane prevent wheels un screwing themselves since slot car wheels right-hand thread far know nose gear made series bends bicycle spoke 10 longer starting threaded end forms main attachment youve got done bind short parallel section last parts come together blending plastic wood starts Dont use muchit adds weight Note hatch equipment locations All-flying tail works well place fine copper wire silversolder place anybody asks what lump tell its shimmy damper nose gear sup posed have surprising num ber models dont Solder axle tube bolt wheels #3-48 ine screw stopnut slip some pieces fuel tubing represent outer cylinder youre done Finishing covered model white Solarfilm working back-tofront bottom-to-top tip-to-center line have seams facing aft out down limits lifting caused fuel penetration wind pressure Trim black Monokote black Tactype 4948 letters buy art supply store transfer model rub ball-point pen 1 stars-and-bars old plastic kit Spray Aero-gloss fuel-proofer dope over everything keep place nose ribbon blue Monokote note two covering model Solarfllm best way proceed clear large space work use top drawing table measures 40 X 72 Next put something sur face protect model hangar rash knicks scratches come setting model tools hitting corners table use wedgeshaped foam pillow purpose Pro vide yourself fireproof place set Monokote iron Always try shrink both sides continued page 102 June1976 37 J B-i RC Sport/Van Putte continued page 15 difficulties flying site neighbors fellow RC fliers other aero modelers Most flying sites have neighbors close enough bothered some things Certain problems can nothing about can alleviate some potential clashes neighbors Mufflers work relatively small expense performance degrada tion incurred using mufflers certainly offset face flying site loss due excessive noise Invasions neighbors property have caused problems clubs Airplanes crash reasons beyond control certainly dont have go tramping through neighbors bean field retrieve airplane permission airspace above neighbors property belongs him too several flying sites have shut down due repeated viola tions airspace above irate neigh bors property lighter side have ever con sidered having Club Records Day sorts possibilities records involving RC airplanes Most involve speed duration events can tailored fit wide spectrum aircraft types Let suggest few events consideration Im sure can come up 1 Maximum Speed Two passes opposite directions made through speed trap average speed deter mined adding two elapsed times dividing twice distance pass Break down competition engine classes 2 Endurance easy need watch patient timer way once flew Phoenix V powered OS 60 Goldhead starting 12 ounces fuel 38 minutes 4 seconds take-off touch-down 3 Handicapped Endurance air plane gets 6 ounces fuel per cubic inch engine displacement 60 gets 36 ounces 40 gets 24 ounces pre pared some long times too Supertigre ST 60-powered Bar Fli once flew over 19 minutes 36 ounces fuel Once club has tried Records Day will make annual event club didits ball contest season about start earnest great contests hear about year getting ready make 1976 debut dont try few size hope see contest year Look up Ill under yellow green dining fly Eglin flag top address 12 Connie Drive Shahmar FL 32579 FF Sport/Kuenz continued page 39 ALW1JIJM 11JE FiLEt IN TIJ5 Sporty looking pseudo scale Navy Flier Sherman Gillespie rubber-powered free wheeling prop Span 26 Pic Jack Stewart get comments three-bladed prop used Grumman Wildcat built Earl Stahl plans prop same used Pres Bruning illustrator Shown sketch #1 its made two Skeeter props following manner Cut props half bevel cut edges hub approximately 120 degrees Lightly score hub area blades promote adhesion epoxy Now flat surfaceI use ceiling tile draw three lines 120 degrees apart point Push pin point perpendic ular surface Smear some oil Flying Near Airports Careful Free Flight Radio Control flying near airports situation might involve possibility models being vicinity full-scale aircraft operations must avoidedor conducted eliminate dangerous situations Models should flown proximity full-scale aircraft operations unless flyer has someone else him sole purpose watching full-scale aircraft supervising flying prevent accident possibilities B-i/Myers continued page 37 same time working progressively tip root Cover hatch cover before cover fuselage because some trimming always needed airplane easier trim working over complex shape like nose tail and/or wing intersections firmly attach Solarfilm large flat surfaces first provide anchorage film heat film iron hot air gun preferred pulling film practice can cover tennis ball piece film Take advantage fact film will stretch well will shrink Flying Balanced properly built true plane flies well Set smooth surface facing wind hold about back stick let run Dont hurry things can get trouble As plane climbs out relax little stick get very scale-like flight Trim level flight bank turn back flaperons ailerons set move least 150 up down roll rate will slow scale-like Pull up loop youll find turning tighter expected slowing down signi ficantly whenever nose held high due nearly-delta planform wing center section drag nacelles landing gear Take off youve got whole new airplane Theres just no way describe eerie feeling get plane flies over head command Its very realistic yet easily controllable engine quits its pretty good glider long keep nose down maintain flying speed yet slows down walk landing Ive cartwheeled couple times damage has wing tips props heat gun will pop out dents wingtips Enjoy 102 Model Aviation SKETCH #1
Edition: Model Aviation - 1976/06
Page Numbers: 31, 32, 33, 34, 35, 36, 37, 102
Right Firstclass scout Timothy J Myers presents finished B-i has merit badge full-size aircraft would believe Boy Scouts no longer offer merit badges model airplanes Below Build tail set up control arrangements try size flat bottom airplane Bottom Fuselage sides place right inner panel covered Fillet formers place right wing cover left wing shows internal details radical looking new Air Force bomber makes surprisingly good-flying RC model George M Myers ON DECEMBER 23 1974 B-i/Air Vehicle No 1 lifted off runway Palmdale CA 85-minute flight Air Force Flight Test Center Ed wards Air Force Base CA During flight variable sweep wings kept full forward position l50sweepback landing gear kept down locked Gross weight brake release 280000 pounds maximum speed flight 190 knots model represents aircraft particular instant time tended Sport Scale usage large enough accept radio equipment has sized around l/2A pylon racer rules will accept members L M Cox family engines 049 through 15 cubic inch displacement should make attractive hundreds thousands engine owners can use everything plans good 15 use snialler motors have weight sensitive Leave off landing gear 09 hand launch will look better flight anyhow go 049 use lightweight 2-servo airborne unit build very light Dont put landing-gear blocks consider replac ing nacelles silhouettes cut 1/8 balsa stuck wing model scaled photographs published various issues Aviation Week & Space Technology several deviations scale have included model Fixed wings rather variable sweep Thick wings match racer June 1976 31 12 \ AFT WING SKIN-I/IS SHT HATCH LINE EIi ~yjj k 1/4 SHE BALSA NATION -- II FVIEW B FUSELAGE AFT STATIONS F1F1 urnLJLJ BESSCRAP SHE BALSA1/4 SHE BALSA TOP ESCAPE CAPSILE OUTLINE n7 FLOOR JOINT -4PLC& R-S 1/4 XS/B 1/4 XS/B U123 Inches FUSELAGE SIDE --N-3 552 PYLON BRAND N-SF-II -TANK NI_____--N-4 Ii FUSELAGE FLOOR-SEE SHE SOFJ RAOIO COMPARTMENT HATCH F-S F-S R F _____ j FLAPERON BLOCK Iii II 10-35 NYLON BOLT SPRUCEliii TRAILING EDGE TOP SKIN LINE BOTTOM WING COVER NACELLE KEY IN BOTTOM WING COVER L4] UI] LEADING EDGE DETAIL R-BSEESHTSSBS II muI4-i i~BOT TOM SERVO TYPE MDUNTINGflGEAR B NACELLE CLIPWING COVER SCREWS-B REDO I-S/B DIA WHEELSDEONUE MMYENU B REOD IN VEHICLE NO1 w I3 0 0 CD 0 0 NOTE THE SYMBOL GDENOTES GRAIN DIRECTION OF BALSA WOOD PARTS STIlE SYMBOL TES FUSELAGE TOP OUTLINE NOSE DETAB M CDX 15 ENGINE BLACK TRIM FWD WING SKIN-I/IS SHE -~WING SKIN JOINT N-I--__ ABC FAIRING LINE I11CUT 01EFG SKIN FOR CLEARANCEL7/j714/]1k frnrmANGIA7JDC1 I/4X1/S SPRUCE I I/iS SHT PLYWOOD IIj FUSELAGE SIOEA IK N-T 5/32 DIA DURAL TUBE 2 455 215MODIFIED CG SL-ISS STEERING ARM LLOYD VBUNT INSTALL OORSAL AFTER SHAPING TOP B FIN 59 TUBING JIJ-FUEL /mN---3/4DIA WHEELS S REDO NOTE FOR LARDING GEAR DETAILS SEE SIlT 30F3 F-4 SHT 0F3 B-i rules Enlarged stabilator area stability increased control authority Commercial Spinner replacing radome air data probe commonsense safety precaution wing inboard panel trailing edges have faired completion permit /2A flying nacelles landing gear third servo motor propeller nose response lack suitable sizes jet turbines hobby market plan using larger engines plan add scale details ex pect finished weight around 44 ounces table below presents some compari sons may find interesting Iteml/2A Racer049 B-i15 B-iOM Racer Engine049/051 049 15 t oz 2010 32 4 40 sin Wing Area 200 sin 327 327300 sin Cross Sect85 sin1051052-1/2x5 CONSTRUCTION Begin buying necessary mate rials cut out parts work will go much faster make up kit yourself Pick C-grain balsa 4 5 pounds per cu ft stock Contest Grade wood planning build 049 engine Use 8- 9-pound stock 15 engines Start splitting foam wing stalling spar Any sharp knife will job use straight-edge guide cut make passes rather trying first cut Foam also cuts easily under saws Shaping wing tips easy trace upper lower outlines respective sur faces cut between razor taking small cuts approach lines Next list will fuselage Clear flattest spot building board tape down piece unwrinkled brown wrapping paper Lay out fullsize pattern fuselage bottom using dimensions shown plan Build up fuselage pattern because building over plans makes hard read main thing remember measure everything twice before cutting once Fit fuselage parts together before gluing anything keep checking left- right-hand parts make sure same size install fuselage top until have completed fin horizontal tail control mechanism inside put wing skins before completing Flaperon tor que tube installations install fillets before have completed servo installations Got used stabilator setup half horizontal tail moves independ ently roll control move same direction pitch control scale airplane hardly worth effort plans show flying tail setup horizontal tail moves unit Its much simpler build will fly same Just make sure servo can give 150up-and-down motion measured leading edge stabilator next fin Make up tail assembly install shown plans During construction secure CG SA-l steering arms drilling /s holes torque tubes receive locking screw Drive screw tube secure against backing out dab epoxy Next list radio installation Once again plans show easy way used setup permitted aft ser vo pushed back forth forward servos order provide mixed pitch roll inputs stabil ator servo mounted hollow square cut 1/8 plywood bound epoxied 5/16 inside diameter aluminum tubes slide over 5/16 outside diameter brass tubes epoxied spruce beams laid across floor beams photos should make clear sug gestion use separate solidlymounted servos ailerons flying tail shown plans rate important thing get done before try install aft fairing covers will make area rather inaccessible Mount engine tank crutch June1976 33 Spruce beams added built-up tail cone prog ress Note aileron torque-tube installation SA-1 installed fillet area make room foam sleeve protecting receiver Nose block assembly built up around engine tank using bits sheet balsa Plywood flanges added later insure good gluing surface made available ANTI WARP TIP OPTIONAL /LATOR _-ABALSA BLOCK CONE -SLOT -- -fHSYM I/B PLY LAM/RAT/ONPR/i EBOND STAB SECT9/32 OIL BRASS TUBESEE TEXT SECT AA SECT B-B K K MTG hOLES FOR CL/PS w NO 335 S/IT BALSA NC 3/35 PLYWOOD 3/35 S/IT BALSA 2/IT BALSA BOTTOM NACELLE STAT/ONS SAND AS S/IOWN~A ---4 NACELLE ASSEMBLY B DETAILS NOTE CUTOUT NA B NB SIDES FROM FROM 1/4 S/IT BALSA NANB NACELLE KEY-3/3S S/IT BALSA 0 .-NA NF S/IT NiJJ4REq NB BLACK TRM SANG TO MATCH TE OF W/NG NEI/lB S/IT CAP S/IT ~If- BALSA NF 3-B TIP FA/RING OPTIONAL RUDDER SECT //IB S/IT BALSA 34 U END OF FLOOR 3/ 0I23 InCh FRONT VIEW OF WING PANEL- NOTE DIM AT YE OF WING TIP/TRAIL/NO EDGEji7&i/EL LINE-f BOTTOM WING COVER ///IE S/IT BALSA S REDO i ID STATIONSTI/RU CONE ACE TIP TIP FAIRING DETAIL 456 0 0 CD 0 0 1/4 TRIANGULAR STOCK 32 SIlT BALSA T ND LE7Zi7G- OF BEND flTT1.DR/LL T/IRU TO IBATCH 17fJ7JMOEJNT/NG SCREWS NACELLE BLANORIG GEAR CLIP 020 DURAL -4 REOb B NE-I/IN S/IT BALSANF 1/4 S/IT BALSA FLAT PATTERN SECT A-A~NOTE BAD 5//B 50-SAND ROUNDA /I B-i build up around scraps a sheet Leave carving until later its joined fuselage Something engine side crutch will have removable allow service dont know what engine will use Ill leave invent what need assembly com plete including provisions nose gear remove nose gear install rest front end fuselage Id like suggest use Hobbypoxy Formula adhesive plywood parts aliphatic resin like Titebond balsa working area Mark perimeter fillets lightly wing inner panel upper covers trim edge fuselage corre sponding slope provide gluing sur face fairing covers Cut triangles 1/16 balsa sheet grain parallel long edge install loca tions shown Always leave some setback line accommodate thick ness covers should tapered fit wing skins Glue covers place blend wing fuselage Plastic Wood Eoxolite get correct mistakes point Add doubler 1/16 balsa behind joint FS 215 finish wont making cracks did Mount a fuselage top make up hatch radio compart ment plans show way may need something else accommodate radio structure should strong enough accept reasonable hatch long dont cut up wing spar Install cabin blocks dont hollow out lightness main structural path engine loads goes through cabin area need wood can get particularly using larger engines last can what youve waiting impatiently ve have included sections fuselage should trace onto file cards Make station per card cut out inside Mark upper lower centerlines label card its station number have never done carv ing before its fun its easy begin whacking off corners taking short cuts stiff blade avoid splitting wood Now go back whack off new corners taking smaller cuts Check progress station cutouts guide cut next As ap proach final shape switch coarse sandpaper finer grades Make correc tions old friend Plastic Wood Man thats beautiful dont know model builder worthy name isnt turned nicely blended flowing lines thats what model has cant stand suspense glue wings dont install horizontal tail flaperons Weve got protect torque rod exit points finish materials little blending can sit back admire Build up nacelles like miniature fuselages fit wing lower surfaces want little carving thats done Now fun part Practically dislikes bending music wire can done some tools can make easier Get yourself copy Hard-to-find-Tools Brookstone Company Peterborough NH 03458 Look up items 1-23366 I23374 Extra-Hard Cutters spring wire bought theyre great Also see items U-16493 U-20180 Ive never tried hut look like could helpful Item U-15909 silver solder flux does superlative job bonding music wire brass tubes Allcraft Tool Supply Co Inc 215 Park Avenue Hicksville NY 11801 ob tain 3-prong plier item lB-b hollow-chop plier item IB-13 local hardware store obtain Vise-grip lever-action pliers made Peterson June 1976 35 Fuselage top cabin blocks added nose assembly model scaled 1/2A Pylon size recommended engine Cox 15 less power observe weights tips given text wing panels completed other shown comes Ace kit foam wing finished panel aileron torque tube shown installed Model has no vices flight BF-2 PVSELAGE SlOE PATTERN -3/32 SHY BALSA S REDO IFLAPERON BLOCK LOCATION RIBS"UTOUT TO MA TCH FUSELAGE SVES NOrTON Li~#I R-I WING COVER RIBS R-I THRO R-5 ARE I/IN SHY BALSA EXCEPT WHERE NOTED CUT THNU FOR 5/32 DIA TUBE LG BLOCK N-B REMOVE AFTER ASSEMBLY N 3 I/B SlIT BALSA R-4N-i R-6-I/3B PLYWOODDRILL THRU FOR 5/32 DIA TUBE SLIP FIT HOLE /1/I SHY BALSA N-I-FWD FAIRING COVER SNEDO N-i-I/B PLYWOOD N- 1/32 PLYWOOD SNED 0 G I/IN SlIT BALSA 02 CENTER FARNO COVER BRED 0 LGyRUTj i1L N 4 BPLY WOOD N-S 1/4 PLYWOOD TANK E2f -------- I -STA 215CUT T CUT THRUP/RBEVEL LINEiF-4 7§jJj4PLYWOJ F-3FORK F-4 -3/SB SHT BALSAF-2-3/JB SHT BALSA DRILL TAWU FOR 5/32 DIA TUBE SLIP FIT HOLE-BLOCKN-I-I/iS PLY1/4 SHT SPRUCE 4 REDO N-5-I/4 PLYWOOD JOINT2GI~FUSELAGE SIDE T2ii7 G- GRAIN DIRECTION FOR ALL RIBS SHDVN-SREOD OF EACH TYPE FUSE FLOOR F-3- I/N SHY BALSA 0I23 ABC0E FB FORMERS THRUM AREI/IN N-B -1/32 PLYWOODTYP GRAM DIRECTIORSHY BALSA 2 REDO,-JCINTTYP5PLCS 12-7/B I1KFRORT J__ LMSTA21B IS-I/B BB-T/B TRIM TO MATCH FUSE 'FUSELAGE FLOOR LAYOUT I/B SHY BALSA-I/4 SCALE SHOWN P-i-AFT FAMING COVER 2 REDO N-4 SILVER SOLDER iPLCS NOTE SEE TEXT FOR BEAMST/iSSB/iS ASSEMBLY DETAILS NOSE GEAR ASSEMBLY LG BLOCK ~1--I/BDIABRASS' BICYCLE-TUBE 3REGD Li SPOCKIMAIN GEAR LEG SNEODI/I6DIABRASS TUBE S 3/iS MW WASHER REDO ERS TUBE ID TO REDO MATCH BOLT WHEEL COLLAR 4Ij~ SLIP FITMAIN WHEEL BEAM SNEOD [jSHTi 0F3 F-I Mfg Co Dewitt NB Now e quipped made landing gear Incidentally free plugs benefit good tools paid cash dont find everywhere look Now youre ready work cut brass tube parts rolling tubes back forth workbench pressing down pocket-knife blade Keep fingers away cutting edge because tubes will sepa rate abruptly leaving nicely finished sur face Cut bend wire parts tools above Before soldering main gear walking beam assemblies make jig axles drilling three holes piece wood along straight line 1/8 diameter first two holes 27/32 apart third 29/32 Install 1 lengths /8 diam eter aluminum tubing holes support brass tubes form bearings axles Aluminum used because solder wont stick As semble wires tubes support proper alignment scraps balsa Make sure wire doesnt fit tightly aluminum tubes bent inward happens assembly will want roll circle finished thats bad Now silver-solder joints getting nice complete fillet joint can 27 Watt 6500F iron such used radio work will enough heat might mention couldnt find source reasonably scale wheels used slot car wheels T-5 made Twinn-K Inc Box 31228 Indianapolis Finishing decorating completed bot torn view shows methods attaching nacelles Main wheels slot-car T-5 Twinn K Inc nose wheels Super Jet ISee text IN 46231 sold card under name AJs Min-i-ture Car Racing Parts main wheels used eter Super Jet wheels Super Jet 826 Conklin St East Farmingdale NY 11735 nose wheels Shop around bit might find something better use slot car wheels talk man get something made last two years because older wheels poorer bond ing tires will spin off landing Use wheel collars left side plane prevent wheels un screwing themselves since slot car wheels right-hand thread far know nose gear made series bends bicycle spoke 10 longer starting threaded end forms main attachment youve got done bind short parallel section last parts come together blending plastic wood starts Dont use muchit adds weight Note hatch equipment locations All-flying tail works well place fine copper wire silversolder place anybody asks what lump tell its shimmy damper nose gear sup posed have surprising num ber models dont Solder axle tube bolt wheels #3-48 ine screw stopnut slip some pieces fuel tubing represent outer cylinder youre done Finishing covered model white Solarfilm working back-tofront bottom-to-top tip-to-center line have seams facing aft out down limits lifting caused fuel penetration wind pressure Trim black Monokote black Tactype 4948 letters buy art supply store transfer model rub ball-point pen 1 stars-and-bars old plastic kit Spray Aero-gloss fuel-proofer dope over everything keep place nose ribbon blue Monokote note two covering model Solarfllm best way proceed clear large space work use top drawing table measures 40 X 72 Next put something sur face protect model hangar rash knicks scratches come setting model tools hitting corners table use wedgeshaped foam pillow purpose Pro vide yourself fireproof place set Monokote iron Always try shrink both sides continued page 102 June1976 37 J B-i RC Sport/Van Putte continued page 15 difficulties flying site neighbors fellow RC fliers other aero modelers Most flying sites have neighbors close enough bothered some things Certain problems can nothing about can alleviate some potential clashes neighbors Mufflers work relatively small expense performance degrada tion incurred using mufflers certainly offset face flying site loss due excessive noise Invasions neighbors property have caused problems clubs Airplanes crash reasons beyond control certainly dont have go tramping through neighbors bean field retrieve airplane permission airspace above neighbors property belongs him too several flying sites have shut down due repeated viola tions airspace above irate neigh bors property lighter side have ever con sidered having Club Records Day sorts possibilities records involving RC airplanes Most involve speed duration events can tailored fit wide spectrum aircraft types Let suggest few events consideration Im sure can come up 1 Maximum Speed Two passes opposite directions made through speed trap average speed deter mined adding two elapsed times dividing twice distance pass Break down competition engine classes 2 Endurance easy need watch patient timer way once flew Phoenix V powered OS 60 Goldhead starting 12 ounces fuel 38 minutes 4 seconds take-off touch-down 3 Handicapped Endurance air plane gets 6 ounces fuel per cubic inch engine displacement 60 gets 36 ounces 40 gets 24 ounces pre pared some long times too Supertigre ST 60-powered Bar Fli once flew over 19 minutes 36 ounces fuel Once club has tried Records Day will make annual event club didits ball contest season about start earnest great contests hear about year getting ready make 1976 debut dont try few size hope see contest year Look up Ill under yellow green dining fly Eglin flag top address 12 Connie Drive Shahmar FL 32579 FF Sport/Kuenz continued page 39 ALW1JIJM 11JE FiLEt IN TIJ5 Sporty looking pseudo scale Navy Flier Sherman Gillespie rubber-powered free wheeling prop Span 26 Pic Jack Stewart get comments three-bladed prop used Grumman Wildcat built Earl Stahl plans prop same used Pres Bruning illustrator Shown sketch #1 its made two Skeeter props following manner Cut props half bevel cut edges hub approximately 120 degrees Lightly score hub area blades promote adhesion epoxy Now flat surfaceI use ceiling tile draw three lines 120 degrees apart point Push pin point perpendic ular surface Smear some oil Flying Near Airports Careful Free Flight Radio Control flying near airports situation might involve possibility models being vicinity full-scale aircraft operations must avoidedor conducted eliminate dangerous situations Models should flown proximity full-scale aircraft operations unless flyer has someone else him sole purpose watching full-scale aircraft supervising flying prevent accident possibilities B-i/Myers continued page 37 same time working progressively tip root Cover hatch cover before cover fuselage because some trimming always needed airplane easier trim working over complex shape like nose tail and/or wing intersections firmly attach Solarfilm large flat surfaces first provide anchorage film heat film iron hot air gun preferred pulling film practice can cover tennis ball piece film Take advantage fact film will stretch well will shrink Flying Balanced properly built true plane flies well Set smooth surface facing wind hold about back stick let run Dont hurry things can get trouble As plane climbs out relax little stick get very scale-like flight Trim level flight bank turn back flaperons ailerons set move least 150 up down roll rate will slow scale-like Pull up loop youll find turning tighter expected slowing down signi ficantly whenever nose held high due nearly-delta planform wing center section drag nacelles landing gear Take off youve got whole new airplane Theres just no way describe eerie feeling get plane flies over head command Its very realistic yet easily controllable engine quits its pretty good glider long keep nose down maintain flying speed yet slows down walk landing Ive cartwheeled couple times damage has wing tips props heat gun will pop out dents wingtips Enjoy 102 Model Aviation SKETCH #1
Edition: Model Aviation - 1976/06
Page Numbers: 31, 32, 33, 34, 35, 36, 37, 102
Right Firstclass scout Timothy J Myers presents finished B-i has merit badge full-size aircraft would believe Boy Scouts no longer offer merit badges model airplanes Below Build tail set up control arrangements try size flat bottom airplane Bottom Fuselage sides place right inner panel covered Fillet formers place right wing cover left wing shows internal details radical looking new Air Force bomber makes surprisingly good-flying RC model George M Myers ON DECEMBER 23 1974 B-i/Air Vehicle No 1 lifted off runway Palmdale CA 85-minute flight Air Force Flight Test Center Ed wards Air Force Base CA During flight variable sweep wings kept full forward position l50sweepback landing gear kept down locked Gross weight brake release 280000 pounds maximum speed flight 190 knots model represents aircraft particular instant time tended Sport Scale usage large enough accept radio equipment has sized around l/2A pylon racer rules will accept members L M Cox family engines 049 through 15 cubic inch displacement should make attractive hundreds thousands engine owners can use everything plans good 15 use snialler motors have weight sensitive Leave off landing gear 09 hand launch will look better flight anyhow go 049 use lightweight 2-servo airborne unit build very light Dont put landing-gear blocks consider replac ing nacelles silhouettes cut 1/8 balsa stuck wing model scaled photographs published various issues Aviation Week & Space Technology several deviations scale have included model Fixed wings rather variable sweep Thick wings match racer June 1976 31 12 \ AFT WING SKIN-I/IS SHT HATCH LINE EIi ~yjj k 1/4 SHE BALSA NATION -- II FVIEW B FUSELAGE AFT STATIONS F1F1 urnLJLJ BESSCRAP SHE BALSA1/4 SHE BALSA TOP ESCAPE CAPSILE OUTLINE n7 FLOOR JOINT -4PLC& R-S 1/4 XS/B 1/4 XS/B U123 Inches FUSELAGE SIDE --N-3 552 PYLON BRAND N-SF-II -TANK NI_____--N-4 Ii FUSELAGE FLOOR-SEE SHE SOFJ RAOIO COMPARTMENT HATCH F-S F-S R F _____ j FLAPERON BLOCK Iii II 10-35 NYLON BOLT SPRUCEliii TRAILING EDGE TOP SKIN LINE BOTTOM WING COVER NACELLE KEY IN BOTTOM WING COVER L4] UI] LEADING EDGE DETAIL R-BSEESHTSSBS II muI4-i i~BOT TOM SERVO TYPE MDUNTINGflGEAR B NACELLE CLIPWING COVER SCREWS-B REDO I-S/B DIA WHEELSDEONUE MMYENU B REOD IN VEHICLE NO1 w I3 0 0 CD 0 0 NOTE THE SYMBOL GDENOTES GRAIN DIRECTION OF BALSA WOOD PARTS STIlE SYMBOL TES FUSELAGE TOP OUTLINE NOSE DETAB M CDX 15 ENGINE BLACK TRIM FWD WING SKIN-I/IS SHE -~WING SKIN JOINT N-I--__ ABC FAIRING LINE I11CUT 01EFG SKIN FOR CLEARANCEL7/j714/]1k frnrmANGIA7JDC1 I/4X1/S SPRUCE I I/iS SHT PLYWOOD IIj FUSELAGE SIOEA IK N-T 5/32 DIA DURAL TUBE 2 455 215MODIFIED CG SL-ISS STEERING ARM LLOYD VBUNT INSTALL OORSAL AFTER SHAPING TOP B FIN 59 TUBING JIJ-FUEL /mN---3/4DIA WHEELS S REDO NOTE FOR LARDING GEAR DETAILS SEE SIlT 30F3 F-4 SHT 0F3 B-i rules Enlarged stabilator area stability increased control authority Commercial Spinner replacing radome air data probe commonsense safety precaution wing inboard panel trailing edges have faired completion permit /2A flying nacelles landing gear third servo motor propeller nose response lack suitable sizes jet turbines hobby market plan using larger engines plan add scale details ex pect finished weight around 44 ounces table below presents some compari sons may find interesting Iteml/2A Racer049 B-i15 B-iOM Racer Engine049/051 049 15 t oz 2010 32 4 40 sin Wing Area 200 sin 327 327300 sin Cross Sect85 sin1051052-1/2x5 CONSTRUCTION Begin buying necessary mate rials cut out parts work will go much faster make up kit yourself Pick C-grain balsa 4 5 pounds per cu ft stock Contest Grade wood planning build 049 engine Use 8- 9-pound stock 15 engines Start splitting foam wing stalling spar Any sharp knife will job use straight-edge guide cut make passes rather trying first cut Foam also cuts easily under saws Shaping wing tips easy trace upper lower outlines respective sur faces cut between razor taking small cuts approach lines Next list will fuselage Clear flattest spot building board tape down piece unwrinkled brown wrapping paper Lay out fullsize pattern fuselage bottom using dimensions shown plan Build up fuselage pattern because building over plans makes hard read main thing remember measure everything twice before cutting once Fit fuselage parts together before gluing anything keep checking left- right-hand parts make sure same size install fuselage top until have completed fin horizontal tail control mechanism inside put wing skins before completing Flaperon tor que tube installations install fillets before have completed servo installations Got used stabilator setup half horizontal tail moves independ ently roll control move same direction pitch control scale airplane hardly worth effort plans show flying tail setup horizontal tail moves unit Its much simpler build will fly same Just make sure servo can give 150up-and-down motion measured leading edge stabilator next fin Make up tail assembly install shown plans During construction secure CG SA-l steering arms drilling /s holes torque tubes receive locking screw Drive screw tube secure against backing out dab epoxy Next list radio installation Once again plans show easy way used setup permitted aft ser vo pushed back forth forward servos order provide mixed pitch roll inputs stabil ator servo mounted hollow square cut 1/8 plywood bound epoxied 5/16 inside diameter aluminum tubes slide over 5/16 outside diameter brass tubes epoxied spruce beams laid across floor beams photos should make clear sug gestion use separate solidlymounted servos ailerons flying tail shown plans rate important thing get done before try install aft fairing covers will make area rather inaccessible Mount engine tank crutch June1976 33 Spruce beams added built-up tail cone prog ress Note aileron torque-tube installation SA-1 installed fillet area make room foam sleeve protecting receiver Nose block assembly built up around engine tank using bits sheet balsa Plywood flanges added later insure good gluing surface made available ANTI WARP TIP OPTIONAL /LATOR _-ABALSA BLOCK CONE -SLOT -- -fHSYM I/B PLY LAM/RAT/ONPR/i EBOND STAB SECT9/32 OIL BRASS TUBESEE TEXT SECT AA SECT B-B K K MTG hOLES FOR CL/PS w NO 335 S/IT BALSA NC 3/35 PLYWOOD 3/35 S/IT BALSA 2/IT BALSA BOTTOM NACELLE STAT/ONS SAND AS S/IOWN~A ---4 NACELLE ASSEMBLY B DETAILS NOTE CUTOUT NA B NB SIDES FROM FROM 1/4 S/IT BALSA NANB NACELLE KEY-3/3S S/IT BALSA 0 .-NA NF S/IT NiJJ4REq NB BLACK TRM SANG TO MATCH TE OF W/NG NEI/lB S/IT CAP S/IT ~If- BALSA NF 3-B TIP FA/RING OPTIONAL RUDDER SECT //IB S/IT BALSA 34 U END OF FLOOR 3/ 0I23 InCh FRONT VIEW OF WING PANEL- NOTE DIM AT YE OF WING TIP/TRAIL/NO EDGEji7&i/EL LINE-f BOTTOM WING COVER ///IE S/IT BALSA S REDO i ID STATIONSTI/RU CONE ACE TIP TIP FAIRING DETAIL 456 0 0 CD 0 0 1/4 TRIANGULAR STOCK 32 SIlT BALSA T ND LE7Zi7G- OF BEND flTT1.DR/LL T/IRU TO IBATCH 17fJ7JMOEJNT/NG SCREWS NACELLE BLANORIG GEAR CLIP 020 DURAL -4 REOb B NE-I/IN S/IT BALSANF 1/4 S/IT BALSA FLAT PATTERN SECT A-A~NOTE BAD 5//B 50-SAND ROUNDA /I B-i build up around scraps a sheet Leave carving until later its joined fuselage Something engine side crutch will have removable allow service dont know what engine will use Ill leave invent what need assembly com plete including provisions nose gear remove nose gear install rest front end fuselage Id like suggest use Hobbypoxy Formula adhesive plywood parts aliphatic resin like Titebond balsa working area Mark perimeter fillets lightly wing inner panel upper covers trim edge fuselage corre sponding slope provide gluing sur face fairing covers Cut triangles 1/16 balsa sheet grain parallel long edge install loca tions shown Always leave some setback line accommodate thick ness covers should tapered fit wing skins Glue covers place blend wing fuselage Plastic Wood Eoxolite get correct mistakes point Add doubler 1/16 balsa behind joint FS 215 finish wont making cracks did Mount a fuselage top make up hatch radio compart ment plans show way may need something else accommodate radio structure should strong enough accept reasonable hatch long dont cut up wing spar Install cabin blocks dont hollow out lightness main structural path engine loads goes through cabin area need wood can get particularly using larger engines last can what youve waiting impatiently ve have included sections fuselage should trace onto file cards Make station per card cut out inside Mark upper lower centerlines label card its station number have never done carv ing before its fun its easy begin whacking off corners taking short cuts stiff blade avoid splitting wood Now go back whack off new corners taking smaller cuts Check progress station cutouts guide cut next As ap proach final shape switch coarse sandpaper finer grades Make correc tions old friend Plastic Wood Man thats beautiful dont know model builder worthy name isnt turned nicely blended flowing lines thats what model has cant stand suspense glue wings dont install horizontal tail flaperons Weve got protect torque rod exit points finish materials little blending can sit back admire Build up nacelles like miniature fuselages fit wing lower surfaces want little carving thats done Now fun part Practically dislikes bending music wire can done some tools can make easier Get yourself copy Hard-to-find-Tools Brookstone Company Peterborough NH 03458 Look up items 1-23366 I23374 Extra-Hard Cutters spring wire bought theyre great Also see items U-16493 U-20180 Ive never tried hut look like could helpful Item U-15909 silver solder flux does superlative job bonding music wire brass tubes Allcraft Tool Supply Co Inc 215 Park Avenue Hicksville NY 11801 ob tain 3-prong plier item lB-b hollow-chop plier item IB-13 local hardware store obtain Vise-grip lever-action pliers made Peterson June 1976 35 Fuselage top cabin blocks added nose assembly model scaled 1/2A Pylon size recommended engine Cox 15 less power observe weights tips given text wing panels completed other shown comes Ace kit foam wing finished panel aileron torque tube shown installed Model has no vices flight BF-2 PVSELAGE SlOE PATTERN -3/32 SHY BALSA S REDO IFLAPERON BLOCK LOCATION RIBS"UTOUT TO MA TCH FUSELAGE SVES NOrTON Li~#I R-I WING COVER RIBS R-I THRO R-5 ARE I/IN SHY BALSA EXCEPT WHERE NOTED CUT THNU FOR 5/32 DIA TUBE LG BLOCK N-B REMOVE AFTER ASSEMBLY N 3 I/B SlIT BALSA R-4N-i R-6-I/3B PLYWOODDRILL THRU FOR 5/32 DIA TUBE SLIP FIT HOLE /1/I SHY BALSA N-I-FWD FAIRING COVER SNEDO N-i-I/B PLYWOOD N- 1/32 PLYWOOD SNED 0 G I/IN SlIT BALSA 02 CENTER FARNO COVER BRED 0 LGyRUTj i1L N 4 BPLY WOOD N-S 1/4 PLYWOOD TANK E2f -------- I -STA 215CUT T CUT THRUP/RBEVEL LINEiF-4 7§jJj4PLYWOJ F-3FORK F-4 -3/SB SHT BALSAF-2-3/JB SHT BALSA DRILL TAWU FOR 5/32 DIA TUBE SLIP FIT HOLE-BLOCKN-I-I/iS PLY1/4 SHT SPRUCE 4 REDO N-5-I/4 PLYWOOD JOINT2GI~FUSELAGE SIDE T2ii7 G- GRAIN DIRECTION FOR ALL RIBS SHDVN-SREOD OF EACH TYPE FUSE FLOOR F-3- I/N SHY BALSA 0I23 ABC0E FB FORMERS THRUM AREI/IN N-B -1/32 PLYWOODTYP GRAM DIRECTIORSHY BALSA 2 REDO,-JCINTTYP5PLCS 12-7/B I1KFRORT J__ LMSTA21B IS-I/B BB-T/B TRIM TO MATCH FUSE 'FUSELAGE FLOOR LAYOUT I/B SHY BALSA-I/4 SCALE SHOWN P-i-AFT FAMING COVER 2 REDO N-4 SILVER SOLDER iPLCS NOTE SEE TEXT FOR BEAMST/iSSB/iS ASSEMBLY DETAILS NOSE GEAR ASSEMBLY LG BLOCK ~1--I/BDIABRASS' BICYCLE-TUBE 3REGD Li SPOCKIMAIN GEAR LEG SNEODI/I6DIABRASS TUBE S 3/iS MW WASHER REDO ERS TUBE ID TO REDO MATCH BOLT WHEEL COLLAR 4Ij~ SLIP FITMAIN WHEEL BEAM SNEOD [jSHTi 0F3 F-I Mfg Co Dewitt NB Now e quipped made landing gear Incidentally free plugs benefit good tools paid cash dont find everywhere look Now youre ready work cut brass tube parts rolling tubes back forth workbench pressing down pocket-knife blade Keep fingers away cutting edge because tubes will sepa rate abruptly leaving nicely finished sur face Cut bend wire parts tools above Before soldering main gear walking beam assemblies make jig axles drilling three holes piece wood along straight line 1/8 diameter first two holes 27/32 apart third 29/32 Install 1 lengths /8 diam eter aluminum tubing holes support brass tubes form bearings axles Aluminum used because solder wont stick As semble wires tubes support proper alignment scraps balsa Make sure wire doesnt fit tightly aluminum tubes bent inward happens assembly will want roll circle finished thats bad Now silver-solder joints getting nice complete fillet joint can 27 Watt 6500F iron such used radio work will enough heat might mention couldnt find source reasonably scale wheels used slot car wheels T-5 made Twinn-K Inc Box 31228 Indianapolis Finishing decorating completed bot torn view shows methods attaching nacelles Main wheels slot-car T-5 Twinn K Inc nose wheels Super Jet ISee text IN 46231 sold card under name AJs Min-i-ture Car Racing Parts main wheels used eter Super Jet wheels Super Jet 826 Conklin St East Farmingdale NY 11735 nose wheels Shop around bit might find something better use slot car wheels talk man get something made last two years because older wheels poorer bond ing tires will spin off landing Use wheel collars left side plane prevent wheels un screwing themselves since slot car wheels right-hand thread far know nose gear made series bends bicycle spoke 10 longer starting threaded end forms main attachment youve got done bind short parallel section last parts come together blending plastic wood starts Dont use muchit adds weight Note hatch equipment locations All-flying tail works well place fine copper wire silversolder place anybody asks what lump tell its shimmy damper nose gear sup posed have surprising num ber models dont Solder axle tube bolt wheels #3-48 ine screw stopnut slip some pieces fuel tubing represent outer cylinder youre done Finishing covered model white Solarfilm working back-tofront bottom-to-top tip-to-center line have seams facing aft out down limits lifting caused fuel penetration wind pressure Trim black Monokote black Tactype 4948 letters buy art supply store transfer model rub ball-point pen 1 stars-and-bars old plastic kit Spray Aero-gloss fuel-proofer dope over everything keep place nose ribbon blue Monokote note two covering model Solarfllm best way proceed clear large space work use top drawing table measures 40 X 72 Next put something sur face protect model hangar rash knicks scratches come setting model tools hitting corners table use wedgeshaped foam pillow purpose Pro vide yourself fireproof place set Monokote iron Always try shrink both sides continued page 102 June1976 37 J B-i RC Sport/Van Putte continued page 15 difficulties flying site neighbors fellow RC fliers other aero modelers Most flying sites have neighbors close enough bothered some things Certain problems can nothing about can alleviate some potential clashes neighbors Mufflers work relatively small expense performance degrada tion incurred using mufflers certainly offset face flying site loss due excessive noise Invasions neighbors property have caused problems clubs Airplanes crash reasons beyond control certainly dont have go tramping through neighbors bean field retrieve airplane permission airspace above neighbors property belongs him too several flying sites have shut down due repeated viola tions airspace above irate neigh bors property lighter side have ever con sidered having Club Records Day sorts possibilities records involving RC airplanes Most involve speed duration events can tailored fit wide spectrum aircraft types Let suggest few events consideration Im sure can come up 1 Maximum Speed Two passes opposite directions made through speed trap average speed deter mined adding two elapsed times dividing twice distance pass Break down competition engine classes 2 Endurance easy need watch patient timer way once flew Phoenix V powered OS 60 Goldhead starting 12 ounces fuel 38 minutes 4 seconds take-off touch-down 3 Handicapped Endurance air plane gets 6 ounces fuel per cubic inch engine displacement 60 gets 36 ounces 40 gets 24 ounces pre pared some long times too Supertigre ST 60-powered Bar Fli once flew over 19 minutes 36 ounces fuel Once club has tried Records Day will make annual event club didits ball contest season about start earnest great contests hear about year getting ready make 1976 debut dont try few size hope see contest year Look up Ill under yellow green dining fly Eglin flag top address 12 Connie Drive Shahmar FL 32579 FF Sport/Kuenz continued page 39 ALW1JIJM 11JE FiLEt IN TIJ5 Sporty looking pseudo scale Navy Flier Sherman Gillespie rubber-powered free wheeling prop Span 26 Pic Jack Stewart get comments three-bladed prop used Grumman Wildcat built Earl Stahl plans prop same used Pres Bruning illustrator Shown sketch #1 its made two Skeeter props following manner Cut props half bevel cut edges hub approximately 120 degrees Lightly score hub area blades promote adhesion epoxy Now flat surfaceI use ceiling tile draw three lines 120 degrees apart point Push pin point perpendic ular surface Smear some oil Flying Near Airports Careful Free Flight Radio Control flying near airports situation might involve possibility models being vicinity full-scale aircraft operations must avoidedor conducted eliminate dangerous situations Models should flown proximity full-scale aircraft operations unless flyer has someone else him sole purpose watching full-scale aircraft supervising flying prevent accident possibilities B-i/Myers continued page 37 same time working progressively tip root Cover hatch cover before cover fuselage because some trimming always needed airplane easier trim working over complex shape like nose tail and/or wing intersections firmly attach Solarfilm large flat surfaces first provide anchorage film heat film iron hot air gun preferred pulling film practice can cover tennis ball piece film Take advantage fact film will stretch well will shrink Flying Balanced properly built true plane flies well Set smooth surface facing wind hold about back stick let run Dont hurry things can get trouble As plane climbs out relax little stick get very scale-like flight Trim level flight bank turn back flaperons ailerons set move least 150 up down roll rate will slow scale-like Pull up loop youll find turning tighter expected slowing down signi ficantly whenever nose held high due nearly-delta planform wing center section drag nacelles landing gear Take off youve got whole new airplane Theres just no way describe eerie feeling get plane flies over head command Its very realistic yet easily controllable engine quits its pretty good glider long keep nose down maintain flying speed yet slows down walk landing Ive cartwheeled couple times damage has wing tips props heat gun will pop out dents wingtips Enjoy 102 Model Aviation SKETCH #1
Edition: Model Aviation - 1976/06
Page Numbers: 31, 32, 33, 34, 35, 36, 37, 102
Right Firstclass scout Timothy J Myers presents finished B-i has merit badge full-size aircraft would believe Boy Scouts no longer offer merit badges model airplanes Below Build tail set up control arrangements try size flat bottom airplane Bottom Fuselage sides place right inner panel covered Fillet formers place right wing cover left wing shows internal details radical looking new Air Force bomber makes surprisingly good-flying RC model George M Myers ON DECEMBER 23 1974 B-i/Air Vehicle No 1 lifted off runway Palmdale CA 85-minute flight Air Force Flight Test Center Ed wards Air Force Base CA During flight variable sweep wings kept full forward position l50sweepback landing gear kept down locked Gross weight brake release 280000 pounds maximum speed flight 190 knots model represents aircraft particular instant time tended Sport Scale usage large enough accept radio equipment has sized around l/2A pylon racer rules will accept members L M Cox family engines 049 through 15 cubic inch displacement should make attractive hundreds thousands engine owners can use everything plans good 15 use snialler motors have weight sensitive Leave off landing gear 09 hand launch will look better flight anyhow go 049 use lightweight 2-servo airborne unit build very light Dont put landing-gear blocks consider replac ing nacelles silhouettes cut 1/8 balsa stuck wing model scaled photographs published various issues Aviation Week & Space Technology several deviations scale have included model Fixed wings rather variable sweep Thick wings match racer June 1976 31 12 \ AFT WING SKIN-I/IS SHT HATCH LINE EIi ~yjj k 1/4 SHE BALSA NATION -- II FVIEW B FUSELAGE AFT STATIONS F1F1 urnLJLJ BESSCRAP SHE BALSA1/4 SHE BALSA TOP ESCAPE CAPSILE OUTLINE n7 FLOOR JOINT -4PLC& R-S 1/4 XS/B 1/4 XS/B U123 Inches FUSELAGE SIDE --N-3 552 PYLON BRAND N-SF-II -TANK NI_____--N-4 Ii FUSELAGE FLOOR-SEE SHE SOFJ RAOIO COMPARTMENT HATCH F-S F-S R F _____ j FLAPERON BLOCK Iii II 10-35 NYLON BOLT SPRUCEliii TRAILING EDGE TOP SKIN LINE BOTTOM WING COVER NACELLE KEY IN BOTTOM WING COVER L4] UI] LEADING EDGE DETAIL R-BSEESHTSSBS II muI4-i i~BOT TOM SERVO TYPE MDUNTINGflGEAR B NACELLE CLIPWING COVER SCREWS-B REDO I-S/B DIA WHEELSDEONUE MMYENU B REOD IN VEHICLE NO1 w I3 0 0 CD 0 0 NOTE THE SYMBOL GDENOTES GRAIN DIRECTION OF BALSA WOOD PARTS STIlE SYMBOL TES FUSELAGE TOP OUTLINE NOSE DETAB M CDX 15 ENGINE BLACK TRIM FWD WING SKIN-I/IS SHE -~WING SKIN JOINT N-I--__ ABC FAIRING LINE I11CUT 01EFG SKIN FOR CLEARANCEL7/j714/]1k frnrmANGIA7JDC1 I/4X1/S SPRUCE I I/iS SHT PLYWOOD IIj FUSELAGE SIOEA IK N-T 5/32 DIA DURAL TUBE 2 455 215MODIFIED CG SL-ISS STEERING ARM LLOYD VBUNT INSTALL OORSAL AFTER SHAPING TOP B FIN 59 TUBING JIJ-FUEL /mN---3/4DIA WHEELS S REDO NOTE FOR LARDING GEAR DETAILS SEE SIlT 30F3 F-4 SHT 0F3 B-i rules Enlarged stabilator area stability increased control authority Commercial Spinner replacing radome air data probe commonsense safety precaution wing inboard panel trailing edges have faired completion permit /2A flying nacelles landing gear third servo motor propeller nose response lack suitable sizes jet turbines hobby market plan using larger engines plan add scale details ex pect finished weight around 44 ounces table below presents some compari sons may find interesting Iteml/2A Racer049 B-i15 B-iOM Racer Engine049/051 049 15 t oz 2010 32 4 40 sin Wing Area 200 sin 327 327300 sin Cross Sect85 sin1051052-1/2x5 CONSTRUCTION Begin buying necessary mate rials cut out parts work will go much faster make up kit yourself Pick C-grain balsa 4 5 pounds per cu ft stock Contest Grade wood planning build 049 engine Use 8- 9-pound stock 15 engines Start splitting foam wing stalling spar Any sharp knife will job use straight-edge guide cut make passes rather trying first cut Foam also cuts easily under saws Shaping wing tips easy trace upper lower outlines respective sur faces cut between razor taking small cuts approach lines Next list will fuselage Clear flattest spot building board tape down piece unwrinkled brown wrapping paper Lay out fullsize pattern fuselage bottom using dimensions shown plan Build up fuselage pattern because building over plans makes hard read main thing remember measure everything twice before cutting once Fit fuselage parts together before gluing anything keep checking left- right-hand parts make sure same size install fuselage top until have completed fin horizontal tail control mechanism inside put wing skins before completing Flaperon tor que tube installations install fillets before have completed servo installations Got used stabilator setup half horizontal tail moves independ ently roll control move same direction pitch control scale airplane hardly worth effort plans show flying tail setup horizontal tail moves unit Its much simpler build will fly same Just make sure servo can give 150up-and-down motion measured leading edge stabilator next fin Make up tail assembly install shown plans During construction secure CG SA-l steering arms drilling /s holes torque tubes receive locking screw Drive screw tube secure against backing out dab epoxy Next list radio installation Once again plans show easy way used setup permitted aft ser vo pushed back forth forward servos order provide mixed pitch roll inputs stabil ator servo mounted hollow square cut 1/8 plywood bound epoxied 5/16 inside diameter aluminum tubes slide over 5/16 outside diameter brass tubes epoxied spruce beams laid across floor beams photos should make clear sug gestion use separate solidlymounted servos ailerons flying tail shown plans rate important thing get done before try install aft fairing covers will make area rather inaccessible Mount engine tank crutch June1976 33 Spruce beams added built-up tail cone prog ress Note aileron torque-tube installation SA-1 installed fillet area make room foam sleeve protecting receiver Nose block assembly built up around engine tank using bits sheet balsa Plywood flanges added later insure good gluing surface made available ANTI WARP TIP OPTIONAL /LATOR _-ABALSA BLOCK CONE -SLOT -- -fHSYM I/B PLY LAM/RAT/ONPR/i EBOND STAB SECT9/32 OIL BRASS TUBESEE TEXT SECT AA SECT B-B K K MTG hOLES FOR CL/PS w NO 335 S/IT BALSA NC 3/35 PLYWOOD 3/35 S/IT BALSA 2/IT BALSA BOTTOM NACELLE STAT/ONS SAND AS S/IOWN~A ---4 NACELLE ASSEMBLY B DETAILS NOTE CUTOUT NA B NB SIDES FROM FROM 1/4 S/IT BALSA NANB NACELLE KEY-3/3S S/IT BALSA 0 .-NA NF S/IT NiJJ4REq NB BLACK TRM SANG TO MATCH TE OF W/NG NEI/lB S/IT CAP S/IT ~If- BALSA NF 3-B TIP FA/RING OPTIONAL RUDDER SECT //IB S/IT BALSA 34 U END OF FLOOR 3/ 0I23 InCh FRONT VIEW OF WING PANEL- NOTE DIM AT YE OF WING TIP/TRAIL/NO EDGEji7&i/EL LINE-f BOTTOM WING COVER ///IE S/IT BALSA S REDO i ID STATIONSTI/RU CONE ACE TIP TIP FAIRING DETAIL 456 0 0 CD 0 0 1/4 TRIANGULAR STOCK 32 SIlT BALSA T ND LE7Zi7G- OF BEND flTT1.DR/LL T/IRU TO IBATCH 17fJ7JMOEJNT/NG SCREWS NACELLE BLANORIG GEAR CLIP 020 DURAL -4 REOb B NE-I/IN S/IT BALSANF 1/4 S/IT BALSA FLAT PATTERN SECT A-A~NOTE BAD 5//B 50-SAND ROUNDA /I B-i build up around scraps a sheet Leave carving until later its joined fuselage Something engine side crutch will have removable allow service dont know what engine will use Ill leave invent what need assembly com plete including provisions nose gear remove nose gear install rest front end fuselage Id like suggest use Hobbypoxy Formula adhesive plywood parts aliphatic resin like Titebond balsa working area Mark perimeter fillets lightly wing inner panel upper covers trim edge fuselage corre sponding slope provide gluing sur face fairing covers Cut triangles 1/16 balsa sheet grain parallel long edge install loca tions shown Always leave some setback line accommodate thick ness covers should tapered fit wing skins Glue covers place blend wing fuselage Plastic Wood Eoxolite get correct mistakes point Add doubler 1/16 balsa behind joint FS 215 finish wont making cracks did Mount a fuselage top make up hatch radio compart ment plans show way may need something else accommodate radio structure should strong enough accept reasonable hatch long dont cut up wing spar Install cabin blocks dont hollow out lightness main structural path engine loads goes through cabin area need wood can get particularly using larger engines last can what youve waiting impatiently ve have included sections fuselage should trace onto file cards Make station per card cut out inside Mark upper lower centerlines label card its station number have never done carv ing before its fun its easy begin whacking off corners taking short cuts stiff blade avoid splitting wood Now go back whack off new corners taking smaller cuts Check progress station cutouts guide cut next As ap proach final shape switch coarse sandpaper finer grades Make correc tions old friend Plastic Wood Man thats beautiful dont know model builder worthy name isnt turned nicely blended flowing lines thats what model has cant stand suspense glue wings dont install horizontal tail flaperons Weve got protect torque rod exit points finish materials little blending can sit back admire Build up nacelles like miniature fuselages fit wing lower surfaces want little carving thats done Now fun part Practically dislikes bending music wire can done some tools can make easier Get yourself copy Hard-to-find-Tools Brookstone Company Peterborough NH 03458 Look up items 1-23366 I23374 Extra-Hard Cutters spring wire bought theyre great Also see items U-16493 U-20180 Ive never tried hut look like could helpful Item U-15909 silver solder flux does superlative job bonding music wire brass tubes Allcraft Tool Supply Co Inc 215 Park Avenue Hicksville NY 11801 ob tain 3-prong plier item lB-b hollow-chop plier item IB-13 local hardware store obtain Vise-grip lever-action pliers made Peterson June 1976 35 Fuselage top cabin blocks added nose assembly model scaled 1/2A Pylon size recommended engine Cox 15 less power observe weights tips given text wing panels completed other shown comes Ace kit foam wing finished panel aileron torque tube shown installed Model has no vices flight BF-2 PVSELAGE SlOE PATTERN -3/32 SHY BALSA S REDO IFLAPERON BLOCK LOCATION RIBS"UTOUT TO MA TCH FUSELAGE SVES NOrTON Li~#I R-I WING COVER RIBS R-I THRO R-5 ARE I/IN SHY BALSA EXCEPT WHERE NOTED CUT THNU FOR 5/32 DIA TUBE LG BLOCK N-B REMOVE AFTER ASSEMBLY N 3 I/B SlIT BALSA R-4N-i R-6-I/3B PLYWOODDRILL THRU FOR 5/32 DIA TUBE SLIP FIT HOLE /1/I SHY BALSA N-I-FWD FAIRING COVER SNEDO N-i-I/B PLYWOOD N- 1/32 PLYWOOD SNED 0 G I/IN SlIT BALSA 02 CENTER FARNO COVER BRED 0 LGyRUTj i1L N 4 BPLY WOOD N-S 1/4 PLYWOOD TANK E2f -------- I -STA 215CUT T CUT THRUP/RBEVEL LINEiF-4 7§jJj4PLYWOJ F-3FORK F-4 -3/SB SHT BALSAF-2-3/JB SHT BALSA DRILL TAWU FOR 5/32 DIA TUBE SLIP FIT HOLE-BLOCKN-I-I/iS PLY1/4 SHT SPRUCE 4 REDO N-5-I/4 PLYWOOD JOINT2GI~FUSELAGE SIDE T2ii7 G- GRAIN DIRECTION FOR ALL RIBS SHDVN-SREOD OF EACH TYPE FUSE FLOOR F-3- I/N SHY BALSA 0I23 ABC0E FB FORMERS THRUM AREI/IN N-B -1/32 PLYWOODTYP GRAM DIRECTIORSHY BALSA 2 REDO,-JCINTTYP5PLCS 12-7/B I1KFRORT J__ LMSTA21B IS-I/B BB-T/B TRIM TO MATCH FUSE 'FUSELAGE FLOOR LAYOUT I/B SHY BALSA-I/4 SCALE SHOWN P-i-AFT FAMING COVER 2 REDO N-4 SILVER SOLDER iPLCS NOTE SEE TEXT FOR BEAMST/iSSB/iS ASSEMBLY DETAILS NOSE GEAR ASSEMBLY LG BLOCK ~1--I/BDIABRASS' BICYCLE-TUBE 3REGD Li SPOCKIMAIN GEAR LEG SNEODI/I6DIABRASS TUBE S 3/iS MW WASHER REDO ERS TUBE ID TO REDO MATCH BOLT WHEEL COLLAR 4Ij~ SLIP FITMAIN WHEEL BEAM SNEOD [jSHTi 0F3 F-I Mfg Co Dewitt NB Now e quipped made landing gear Incidentally free plugs benefit good tools paid cash dont find everywhere look Now youre ready work cut brass tube parts rolling tubes back forth workbench pressing down pocket-knife blade Keep fingers away cutting edge because tubes will sepa rate abruptly leaving nicely finished sur face Cut bend wire parts tools above Before soldering main gear walking beam assemblies make jig axles drilling three holes piece wood along straight line 1/8 diameter first two holes 27/32 apart third 29/32 Install 1 lengths /8 diam eter aluminum tubing holes support brass tubes form bearings axles Aluminum used because solder wont stick As semble wires tubes support proper alignment scraps balsa Make sure wire doesnt fit tightly aluminum tubes bent inward happens assembly will want roll circle finished thats bad Now silver-solder joints getting nice complete fillet joint can 27 Watt 6500F iron such used radio work will enough heat might mention couldnt find source reasonably scale wheels used slot car wheels T-5 made Twinn-K Inc Box 31228 Indianapolis Finishing decorating completed bot torn view shows methods attaching nacelles Main wheels slot-car T-5 Twinn K Inc nose wheels Super Jet ISee text IN 46231 sold card under name AJs Min-i-ture Car Racing Parts main wheels used eter Super Jet wheels Super Jet 826 Conklin St East Farmingdale NY 11735 nose wheels Shop around bit might find something better use slot car wheels talk man get something made last two years because older wheels poorer bond ing tires will spin off landing Use wheel collars left side plane prevent wheels un screwing themselves since slot car wheels right-hand thread far know nose gear made series bends bicycle spoke 10 longer starting threaded end forms main attachment youve got done bind short parallel section last parts come together blending plastic wood starts Dont use muchit adds weight Note hatch equipment locations All-flying tail works well place fine copper wire silversolder place anybody asks what lump tell its shimmy damper nose gear sup posed have surprising num ber models dont Solder axle tube bolt wheels #3-48 ine screw stopnut slip some pieces fuel tubing represent outer cylinder youre done Finishing covered model white Solarfilm working back-tofront bottom-to-top tip-to-center line have seams facing aft out down limits lifting caused fuel penetration wind pressure Trim black Monokote black Tactype 4948 letters buy art supply store transfer model rub ball-point pen 1 stars-and-bars old plastic kit Spray Aero-gloss fuel-proofer dope over everything keep place nose ribbon blue Monokote note two covering model Solarfllm best way proceed clear large space work use top drawing table measures 40 X 72 Next put something sur face protect model hangar rash knicks scratches come setting model tools hitting corners table use wedgeshaped foam pillow purpose Pro vide yourself fireproof place set Monokote iron Always try shrink both sides continued page 102 June1976 37 J B-i RC Sport/Van Putte continued page 15 difficulties flying site neighbors fellow RC fliers other aero modelers Most flying sites have neighbors close enough bothered some things Certain problems can nothing about can alleviate some potential clashes neighbors Mufflers work relatively small expense performance degrada tion incurred using mufflers certainly offset face flying site loss due excessive noise Invasions neighbors property have caused problems clubs Airplanes crash reasons beyond control certainly dont have go tramping through neighbors bean field retrieve airplane permission airspace above neighbors property belongs him too several flying sites have shut down due repeated viola tions airspace above irate neigh bors property lighter side have ever con sidered having Club Records Day sorts possibilities records involving RC airplanes Most involve speed duration events can tailored fit wide spectrum aircraft types Let suggest few events consideration Im sure can come up 1 Maximum Speed Two passes opposite directions made through speed trap average speed deter mined adding two elapsed times dividing twice distance pass Break down competition engine classes 2 Endurance easy need watch patient timer way once flew Phoenix V powered OS 60 Goldhead starting 12 ounces fuel 38 minutes 4 seconds take-off touch-down 3 Handicapped Endurance air plane gets 6 ounces fuel per cubic inch engine displacement 60 gets 36 ounces 40 gets 24 ounces pre pared some long times too Supertigre ST 60-powered Bar Fli once flew over 19 minutes 36 ounces fuel Once club has tried Records Day will make annual event club didits ball contest season about start earnest great contests hear about year getting ready make 1976 debut dont try few size hope see contest year Look up Ill under yellow green dining fly Eglin flag top address 12 Connie Drive Shahmar FL 32579 FF Sport/Kuenz continued page 39 ALW1JIJM 11JE FiLEt IN TIJ5 Sporty looking pseudo scale Navy Flier Sherman Gillespie rubber-powered free wheeling prop Span 26 Pic Jack Stewart get comments three-bladed prop used Grumman Wildcat built Earl Stahl plans prop same used Pres Bruning illustrator Shown sketch #1 its made two Skeeter props following manner Cut props half bevel cut edges hub approximately 120 degrees Lightly score hub area blades promote adhesion epoxy Now flat surfaceI use ceiling tile draw three lines 120 degrees apart point Push pin point perpendic ular surface Smear some oil Flying Near Airports Careful Free Flight Radio Control flying near airports situation might involve possibility models being vicinity full-scale aircraft operations must avoidedor conducted eliminate dangerous situations Models should flown proximity full-scale aircraft operations unless flyer has someone else him sole purpose watching full-scale aircraft supervising flying prevent accident possibilities B-i/Myers continued page 37 same time working progressively tip root Cover hatch cover before cover fuselage because some trimming always needed airplane easier trim working over complex shape like nose tail and/or wing intersections firmly attach Solarfilm large flat surfaces first provide anchorage film heat film iron hot air gun preferred pulling film practice can cover tennis ball piece film Take advantage fact film will stretch well will shrink Flying Balanced properly built true plane flies well Set smooth surface facing wind hold about back stick let run Dont hurry things can get trouble As plane climbs out relax little stick get very scale-like flight Trim level flight bank turn back flaperons ailerons set move least 150 up down roll rate will slow scale-like Pull up loop youll find turning tighter expected slowing down signi ficantly whenever nose held high due nearly-delta planform wing center section drag nacelles landing gear Take off youve got whole new airplane Theres just no way describe eerie feeling get plane flies over head command Its very realistic yet easily controllable engine quits its pretty good glider long keep nose down maintain flying speed yet slows down walk landing Ive cartwheeled couple times damage has wing tips props heat gun will pop out dents wingtips Enjoy 102 Model Aviation SKETCH #1
Edition: Model Aviation - 1976/06
Page Numbers: 31, 32, 33, 34, 35, 36, 37, 102
Right Firstclass scout Timothy J Myers presents finished B-i has merit badge full-size aircraft would believe Boy Scouts no longer offer merit badges model airplanes Below Build tail set up control arrangements try size flat bottom airplane Bottom Fuselage sides place right inner panel covered Fillet formers place right wing cover left wing shows internal details radical looking new Air Force bomber makes surprisingly good-flying RC model George M Myers ON DECEMBER 23 1974 B-i/Air Vehicle No 1 lifted off runway Palmdale CA 85-minute flight Air Force Flight Test Center Ed wards Air Force Base CA During flight variable sweep wings kept full forward position l50sweepback landing gear kept down locked Gross weight brake release 280000 pounds maximum speed flight 190 knots model represents aircraft particular instant time tended Sport Scale usage large enough accept radio equipment has sized around l/2A pylon racer rules will accept members L M Cox family engines 049 through 15 cubic inch displacement should make attractive hundreds thousands engine owners can use everything plans good 15 use snialler motors have weight sensitive Leave off landing gear 09 hand launch will look better flight anyhow go 049 use lightweight 2-servo airborne unit build very light Dont put landing-gear blocks consider replac ing nacelles silhouettes cut 1/8 balsa stuck wing model scaled photographs published various issues Aviation Week & Space Technology several deviations scale have included model Fixed wings rather variable sweep Thick wings match racer June 1976 31 12 \ AFT WING SKIN-I/IS SHT HATCH LINE EIi ~yjj k 1/4 SHE BALSA NATION -- II FVIEW B FUSELAGE AFT STATIONS F1F1 urnLJLJ BESSCRAP SHE BALSA1/4 SHE BALSA TOP ESCAPE CAPSILE OUTLINE n7 FLOOR JOINT -4PLC& R-S 1/4 XS/B 1/4 XS/B U123 Inches FUSELAGE SIDE --N-3 552 PYLON BRAND N-SF-II -TANK NI_____--N-4 Ii FUSELAGE FLOOR-SEE SHE SOFJ RAOIO COMPARTMENT HATCH F-S F-S R F _____ j FLAPERON BLOCK Iii II 10-35 NYLON BOLT SPRUCEliii TRAILING EDGE TOP SKIN LINE BOTTOM WING COVER NACELLE KEY IN BOTTOM WING COVER L4] UI] LEADING EDGE DETAIL R-BSEESHTSSBS II muI4-i i~BOT TOM SERVO TYPE MDUNTINGflGEAR B NACELLE CLIPWING COVER SCREWS-B REDO I-S/B DIA WHEELSDEONUE MMYENU B REOD IN VEHICLE NO1 w I3 0 0 CD 0 0 NOTE THE SYMBOL GDENOTES GRAIN DIRECTION OF BALSA WOOD PARTS STIlE SYMBOL TES FUSELAGE TOP OUTLINE NOSE DETAB M CDX 15 ENGINE BLACK TRIM FWD WING SKIN-I/IS SHE -~WING SKIN JOINT N-I--__ ABC FAIRING LINE I11CUT 01EFG SKIN FOR CLEARANCEL7/j714/]1k frnrmANGIA7JDC1 I/4X1/S SPRUCE I I/iS SHT PLYWOOD IIj FUSELAGE SIOEA IK N-T 5/32 DIA DURAL TUBE 2 455 215MODIFIED CG SL-ISS STEERING ARM LLOYD VBUNT INSTALL OORSAL AFTER SHAPING TOP B FIN 59 TUBING JIJ-FUEL /mN---3/4DIA WHEELS S REDO NOTE FOR LARDING GEAR DETAILS SEE SIlT 30F3 F-4 SHT 0F3 B-i rules Enlarged stabilator area stability increased control authority Commercial Spinner replacing radome air data probe commonsense safety precaution wing inboard panel trailing edges have faired completion permit /2A flying nacelles landing gear third servo motor propeller nose response lack suitable sizes jet turbines hobby market plan using larger engines plan add scale details ex pect finished weight around 44 ounces table below presents some compari sons may find interesting Iteml/2A Racer049 B-i15 B-iOM Racer Engine049/051 049 15 t oz 2010 32 4 40 sin Wing Area 200 sin 327 327300 sin Cross Sect85 sin1051052-1/2x5 CONSTRUCTION Begin buying necessary mate rials cut out parts work will go much faster make up kit yourself Pick C-grain balsa 4 5 pounds per cu ft stock Contest Grade wood planning build 049 engine Use 8- 9-pound stock 15 engines Start splitting foam wing stalling spar Any sharp knife will job use straight-edge guide cut make passes rather trying first cut Foam also cuts easily under saws Shaping wing tips easy trace upper lower outlines respective sur faces cut between razor taking small cuts approach lines Next list will fuselage Clear flattest spot building board tape down piece unwrinkled brown wrapping paper Lay out fullsize pattern fuselage bottom using dimensions shown plan Build up fuselage pattern because building over plans makes hard read main thing remember measure everything twice before cutting once Fit fuselage parts together before gluing anything keep checking left- right-hand parts make sure same size install fuselage top until have completed fin horizontal tail control mechanism inside put wing skins before completing Flaperon tor que tube installations install fillets before have completed servo installations Got used stabilator setup half horizontal tail moves independ ently roll control move same direction pitch control scale airplane hardly worth effort plans show flying tail setup horizontal tail moves unit Its much simpler build will fly same Just make sure servo can give 150up-and-down motion measured leading edge stabilator next fin Make up tail assembly install shown plans During construction secure CG SA-l steering arms drilling /s holes torque tubes receive locking screw Drive screw tube secure against backing out dab epoxy Next list radio installation Once again plans show easy way used setup permitted aft ser vo pushed back forth forward servos order provide mixed pitch roll inputs stabil ator servo mounted hollow square cut 1/8 plywood bound epoxied 5/16 inside diameter aluminum tubes slide over 5/16 outside diameter brass tubes epoxied spruce beams laid across floor beams photos should make clear sug gestion use separate solidlymounted servos ailerons flying tail shown plans rate important thing get done before try install aft fairing covers will make area rather inaccessible Mount engine tank crutch June1976 33 Spruce beams added built-up tail cone prog ress Note aileron torque-tube installation SA-1 installed fillet area make room foam sleeve protecting receiver Nose block assembly built up around engine tank using bits sheet balsa Plywood flanges added later insure good gluing surface made available ANTI WARP TIP OPTIONAL /LATOR _-ABALSA BLOCK CONE -SLOT -- -fHSYM I/B PLY LAM/RAT/ONPR/i EBOND STAB SECT9/32 OIL BRASS TUBESEE TEXT SECT AA SECT B-B K K MTG hOLES FOR CL/PS w NO 335 S/IT BALSA NC 3/35 PLYWOOD 3/35 S/IT BALSA 2/IT BALSA BOTTOM NACELLE STAT/ONS SAND AS S/IOWN~A ---4 NACELLE ASSEMBLY B DETAILS NOTE CUTOUT NA B NB SIDES FROM FROM 1/4 S/IT BALSA NANB NACELLE KEY-3/3S S/IT BALSA 0 .-NA NF S/IT NiJJ4REq NB BLACK TRM SANG TO MATCH TE OF W/NG NEI/lB S/IT CAP S/IT ~If- BALSA NF 3-B TIP FA/RING OPTIONAL RUDDER SECT //IB S/IT BALSA 34 U END OF FLOOR 3/ 0I23 InCh FRONT VIEW OF WING PANEL- NOTE DIM AT YE OF WING TIP/TRAIL/NO EDGEji7&i/EL LINE-f BOTTOM WING COVER ///IE S/IT BALSA S REDO i ID STATIONSTI/RU CONE ACE TIP TIP FAIRING DETAIL 456 0 0 CD 0 0 1/4 TRIANGULAR STOCK 32 SIlT BALSA T ND LE7Zi7G- OF BEND flTT1.DR/LL T/IRU TO IBATCH 17fJ7JMOEJNT/NG SCREWS NACELLE BLANORIG GEAR CLIP 020 DURAL -4 REOb B NE-I/IN S/IT BALSANF 1/4 S/IT BALSA FLAT PATTERN SECT A-A~NOTE BAD 5//B 50-SAND ROUNDA /I B-i build up around scraps a sheet Leave carving until later its joined fuselage Something engine side crutch will have removable allow service dont know what engine will use Ill leave invent what need assembly com plete including provisions nose gear remove nose gear install rest front end fuselage Id like suggest use Hobbypoxy Formula adhesive plywood parts aliphatic resin like Titebond balsa working area Mark perimeter fillets lightly wing inner panel upper covers trim edge fuselage corre sponding slope provide gluing sur face fairing covers Cut triangles 1/16 balsa sheet grain parallel long edge install loca tions shown Always leave some setback line accommodate thick ness covers should tapered fit wing skins Glue covers place blend wing fuselage Plastic Wood Eoxolite get correct mistakes point Add doubler 1/16 balsa behind joint FS 215 finish wont making cracks did Mount a fuselage top make up hatch radio compart ment plans show way may need something else accommodate radio structure should strong enough accept reasonable hatch long dont cut up wing spar Install cabin blocks dont hollow out lightness main structural path engine loads goes through cabin area need wood can get particularly using larger engines last can what youve waiting impatiently ve have included sections fuselage should trace onto file cards Make station per card cut out inside Mark upper lower centerlines label card its station number have never done carv ing before its fun its easy begin whacking off corners taking short cuts stiff blade avoid splitting wood Now go back whack off new corners taking smaller cuts Check progress station cutouts guide cut next As ap proach final shape switch coarse sandpaper finer grades Make correc tions old friend Plastic Wood Man thats beautiful dont know model builder worthy name isnt turned nicely blended flowing lines thats what model has cant stand suspense glue wings dont install horizontal tail flaperons Weve got protect torque rod exit points finish materials little blending can sit back admire Build up nacelles like miniature fuselages fit wing lower surfaces want little carving thats done Now fun part Practically dislikes bending music wire can done some tools can make easier Get yourself copy Hard-to-find-Tools Brookstone Company Peterborough NH 03458 Look up items 1-23366 I23374 Extra-Hard Cutters spring wire bought theyre great Also see items U-16493 U-20180 Ive never tried hut look like could helpful Item U-15909 silver solder flux does superlative job bonding music wire brass tubes Allcraft Tool Supply Co Inc 215 Park Avenue Hicksville NY 11801 ob tain 3-prong plier item lB-b hollow-chop plier item IB-13 local hardware store obtain Vise-grip lever-action pliers made Peterson June 1976 35 Fuselage top cabin blocks added nose assembly model scaled 1/2A Pylon size recommended engine Cox 15 less power observe weights tips given text wing panels completed other shown comes Ace kit foam wing finished panel aileron torque tube shown installed Model has no vices flight BF-2 PVSELAGE SlOE PATTERN -3/32 SHY BALSA S REDO IFLAPERON BLOCK LOCATION RIBS"UTOUT TO MA TCH FUSELAGE SVES NOrTON Li~#I R-I WING COVER RIBS R-I THRO R-5 ARE I/IN SHY BALSA EXCEPT WHERE NOTED CUT THNU FOR 5/32 DIA TUBE LG BLOCK N-B REMOVE AFTER ASSEMBLY N 3 I/B SlIT BALSA R-4N-i R-6-I/3B PLYWOODDRILL THRU FOR 5/32 DIA TUBE SLIP FIT HOLE /1/I SHY BALSA N-I-FWD FAIRING COVER SNEDO N-i-I/B PLYWOOD N- 1/32 PLYWOOD SNED 0 G I/IN SlIT BALSA 02 CENTER FARNO COVER BRED 0 LGyRUTj i1L N 4 BPLY WOOD N-S 1/4 PLYWOOD TANK E2f -------- I -STA 215CUT T CUT THRUP/RBEVEL LINEiF-4 7§jJj4PLYWOJ F-3FORK F-4 -3/SB SHT BALSAF-2-3/JB SHT BALSA DRILL TAWU FOR 5/32 DIA TUBE SLIP FIT HOLE-BLOCKN-I-I/iS PLY1/4 SHT SPRUCE 4 REDO N-5-I/4 PLYWOOD JOINT2GI~FUSELAGE SIDE T2ii7 G- GRAIN DIRECTION FOR ALL RIBS SHDVN-SREOD OF EACH TYPE FUSE FLOOR F-3- I/N SHY BALSA 0I23 ABC0E FB FORMERS THRUM AREI/IN N-B -1/32 PLYWOODTYP GRAM DIRECTIORSHY BALSA 2 REDO,-JCINTTYP5PLCS 12-7/B I1KFRORT J__ LMSTA21B IS-I/B BB-T/B TRIM TO MATCH FUSE 'FUSELAGE FLOOR LAYOUT I/B SHY BALSA-I/4 SCALE SHOWN P-i-AFT FAMING COVER 2 REDO N-4 SILVER SOLDER iPLCS NOTE SEE TEXT FOR BEAMST/iSSB/iS ASSEMBLY DETAILS NOSE GEAR ASSEMBLY LG BLOCK ~1--I/BDIABRASS' BICYCLE-TUBE 3REGD Li SPOCKIMAIN GEAR LEG SNEODI/I6DIABRASS TUBE S 3/iS MW WASHER REDO ERS TUBE ID TO REDO MATCH BOLT WHEEL COLLAR 4Ij~ SLIP FITMAIN WHEEL BEAM SNEOD [jSHTi 0F3 F-I Mfg Co Dewitt NB Now e quipped made landing gear Incidentally free plugs benefit good tools paid cash dont find everywhere look Now youre ready work cut brass tube parts rolling tubes back forth workbench pressing down pocket-knife blade Keep fingers away cutting edge because tubes will sepa rate abruptly leaving nicely finished sur face Cut bend wire parts tools above Before soldering main gear walking beam assemblies make jig axles drilling three holes piece wood along straight line 1/8 diameter first two holes 27/32 apart third 29/32 Install 1 lengths /8 diam eter aluminum tubing holes support brass tubes form bearings axles Aluminum used because solder wont stick As semble wires tubes support proper alignment scraps balsa Make sure wire doesnt fit tightly aluminum tubes bent inward happens assembly will want roll circle finished thats bad Now silver-solder joints getting nice complete fillet joint can 27 Watt 6500F iron such used radio work will enough heat might mention couldnt find source reasonably scale wheels used slot car wheels T-5 made Twinn-K Inc Box 31228 Indianapolis Finishing decorating completed bot torn view shows methods attaching nacelles Main wheels slot-car T-5 Twinn K Inc nose wheels Super Jet ISee text IN 46231 sold card under name AJs Min-i-ture Car Racing Parts main wheels used eter Super Jet wheels Super Jet 826 Conklin St East Farmingdale NY 11735 nose wheels Shop around bit might find something better use slot car wheels talk man get something made last two years because older wheels poorer bond ing tires will spin off landing Use wheel collars left side plane prevent wheels un screwing themselves since slot car wheels right-hand thread far know nose gear made series bends bicycle spoke 10 longer starting threaded end forms main attachment youve got done bind short parallel section last parts come together blending plastic wood starts Dont use muchit adds weight Note hatch equipment locations All-flying tail works well place fine copper wire silversolder place anybody asks what lump tell its shimmy damper nose gear sup posed have surprising num ber models dont Solder axle tube bolt wheels #3-48 ine screw stopnut slip some pieces fuel tubing represent outer cylinder youre done Finishing covered model white Solarfilm working back-tofront bottom-to-top tip-to-center line have seams facing aft out down limits lifting caused fuel penetration wind pressure Trim black Monokote black Tactype 4948 letters buy art supply store transfer model rub ball-point pen 1 stars-and-bars old plastic kit Spray Aero-gloss fuel-proofer dope over everything keep place nose ribbon blue Monokote note two covering model Solarfllm best way proceed clear large space work use top drawing table measures 40 X 72 Next put something sur face protect model hangar rash knicks scratches come setting model tools hitting corners table use wedgeshaped foam pillow purpose Pro vide yourself fireproof place set Monokote iron Always try shrink both sides continued page 102 June1976 37 J B-i RC Sport/Van Putte continued page 15 difficulties flying site neighbors fellow RC fliers other aero modelers Most flying sites have neighbors close enough bothered some things Certain problems can nothing about can alleviate some potential clashes neighbors Mufflers work relatively small expense performance degrada tion incurred using mufflers certainly offset face flying site loss due excessive noise Invasions neighbors property have caused problems clubs Airplanes crash reasons beyond control certainly dont have go tramping through neighbors bean field retrieve airplane permission airspace above neighbors property belongs him too several flying sites have shut down due repeated viola tions airspace above irate neigh bors property lighter side have ever con sidered having Club Records Day sorts possibilities records involving RC airplanes Most involve speed duration events can tailored fit wide spectrum aircraft types Let suggest few events consideration Im sure can come up 1 Maximum Speed Two passes opposite directions made through speed trap average speed deter mined adding two elapsed times dividing twice distance pass Break down competition engine classes 2 Endurance easy need watch patient timer way once flew Phoenix V powered OS 60 Goldhead starting 12 ounces fuel 38 minutes 4 seconds take-off touch-down 3 Handicapped Endurance air plane gets 6 ounces fuel per cubic inch engine displacement 60 gets 36 ounces 40 gets 24 ounces pre pared some long times too Supertigre ST 60-powered Bar Fli once flew over 19 minutes 36 ounces fuel Once club has tried Records Day will make annual event club didits ball contest season about start earnest great contests hear about year getting ready make 1976 debut dont try few size hope see contest year Look up Ill under yellow green dining fly Eglin flag top address 12 Connie Drive Shahmar FL 32579 FF Sport/Kuenz continued page 39 ALW1JIJM 11JE FiLEt IN TIJ5 Sporty looking pseudo scale Navy Flier Sherman Gillespie rubber-powered free wheeling prop Span 26 Pic Jack Stewart get comments three-bladed prop used Grumman Wildcat built Earl Stahl plans prop same used Pres Bruning illustrator Shown sketch #1 its made two Skeeter props following manner Cut props half bevel cut edges hub approximately 120 degrees Lightly score hub area blades promote adhesion epoxy Now flat surfaceI use ceiling tile draw three lines 120 degrees apart point Push pin point perpendic ular surface Smear some oil Flying Near Airports Careful Free Flight Radio Control flying near airports situation might involve possibility models being vicinity full-scale aircraft operations must avoidedor conducted eliminate dangerous situations Models should flown proximity full-scale aircraft operations unless flyer has someone else him sole purpose watching full-scale aircraft supervising flying prevent accident possibilities B-i/Myers continued page 37 same time working progressively tip root Cover hatch cover before cover fuselage because some trimming always needed airplane easier trim working over complex shape like nose tail and/or wing intersections firmly attach Solarfilm large flat surfaces first provide anchorage film heat film iron hot air gun preferred pulling film practice can cover tennis ball piece film Take advantage fact film will stretch well will shrink Flying Balanced properly built true plane flies well Set smooth surface facing wind hold about back stick let run Dont hurry things can get trouble As plane climbs out relax little stick get very scale-like flight Trim level flight bank turn back flaperons ailerons set move least 150 up down roll rate will slow scale-like Pull up loop youll find turning tighter expected slowing down signi ficantly whenever nose held high due nearly-delta planform wing center section drag nacelles landing gear Take off youve got whole new airplane Theres just no way describe eerie feeling get plane flies over head command Its very realistic yet easily controllable engine quits its pretty good glider long keep nose down maintain flying speed yet slows down walk landing Ive cartwheeled couple times damage has wing tips props heat gun will pop out dents wingtips Enjoy 102 Model Aviation SKETCH #1
Edition: Model Aviation - 1976/06
Page Numbers: 31, 32, 33, 34, 35, 36, 37, 102
Right Firstclass scout Timothy J Myers presents finished B-i has merit badge full-size aircraft would believe Boy Scouts no longer offer merit badges model airplanes Below Build tail set up control arrangements try size flat bottom airplane Bottom Fuselage sides place right inner panel covered Fillet formers place right wing cover left wing shows internal details radical looking new Air Force bomber makes surprisingly good-flying RC model George M Myers ON DECEMBER 23 1974 B-i/Air Vehicle No 1 lifted off runway Palmdale CA 85-minute flight Air Force Flight Test Center Ed wards Air Force Base CA During flight variable sweep wings kept full forward position l50sweepback landing gear kept down locked Gross weight brake release 280000 pounds maximum speed flight 190 knots model represents aircraft particular instant time tended Sport Scale usage large enough accept radio equipment has sized around l/2A pylon racer rules will accept members L M Cox family engines 049 through 15 cubic inch displacement should make attractive hundreds thousands engine owners can use everything plans good 15 use snialler motors have weight sensitive Leave off landing gear 09 hand launch will look better flight anyhow go 049 use lightweight 2-servo airborne unit build very light Dont put landing-gear blocks consider replac ing nacelles silhouettes cut 1/8 balsa stuck wing model scaled photographs published various issues Aviation Week & Space Technology several deviations scale have included model Fixed wings rather variable sweep Thick wings match racer June 1976 31 12 \ AFT WING SKIN-I/IS SHT HATCH LINE EIi ~yjj k 1/4 SHE BALSA NATION -- II FVIEW B FUSELAGE AFT STATIONS F1F1 urnLJLJ BESSCRAP SHE BALSA1/4 SHE BALSA TOP ESCAPE CAPSILE OUTLINE n7 FLOOR JOINT -4PLC& R-S 1/4 XS/B 1/4 XS/B U123 Inches FUSELAGE SIDE --N-3 552 PYLON BRAND N-SF-II -TANK NI_____--N-4 Ii FUSELAGE FLOOR-SEE SHE SOFJ RAOIO COMPARTMENT HATCH F-S F-S R F _____ j FLAPERON BLOCK Iii II 10-35 NYLON BOLT SPRUCEliii TRAILING EDGE TOP SKIN LINE BOTTOM WING COVER NACELLE KEY IN BOTTOM WING COVER L4] UI] LEADING EDGE DETAIL R-BSEESHTSSBS II muI4-i i~BOT TOM SERVO TYPE MDUNTINGflGEAR B NACELLE CLIPWING COVER SCREWS-B REDO I-S/B DIA WHEELSDEONUE MMYENU B REOD IN VEHICLE NO1 w I3 0 0 CD 0 0 NOTE THE SYMBOL GDENOTES GRAIN DIRECTION OF BALSA WOOD PARTS STIlE SYMBOL TES FUSELAGE TOP OUTLINE NOSE DETAB M CDX 15 ENGINE BLACK TRIM FWD WING SKIN-I/IS SHE -~WING SKIN JOINT N-I--__ ABC FAIRING LINE I11CUT 01EFG SKIN FOR CLEARANCEL7/j714/]1k frnrmANGIA7JDC1 I/4X1/S SPRUCE I I/iS SHT PLYWOOD IIj FUSELAGE SIOEA IK N-T 5/32 DIA DURAL TUBE 2 455 215MODIFIED CG SL-ISS STEERING ARM LLOYD VBUNT INSTALL OORSAL AFTER SHAPING TOP B FIN 59 TUBING JIJ-FUEL /mN---3/4DIA WHEELS S REDO NOTE FOR LARDING GEAR DETAILS SEE SIlT 30F3 F-4 SHT 0F3 B-i rules Enlarged stabilator area stability increased control authority Commercial Spinner replacing radome air data probe commonsense safety precaution wing inboard panel trailing edges have faired completion permit /2A flying nacelles landing gear third servo motor propeller nose response lack suitable sizes jet turbines hobby market plan using larger engines plan add scale details ex pect finished weight around 44 ounces table below presents some compari sons may find interesting Iteml/2A Racer049 B-i15 B-iOM Racer Engine049/051 049 15 t oz 2010 32 4 40 sin Wing Area 200 sin 327 327300 sin Cross Sect85 sin1051052-1/2x5 CONSTRUCTION Begin buying necessary mate rials cut out parts work will go much faster make up kit yourself Pick C-grain balsa 4 5 pounds per cu ft stock Contest Grade wood planning build 049 engine Use 8- 9-pound stock 15 engines Start splitting foam wing stalling spar Any sharp knife will job use straight-edge guide cut make passes rather trying first cut Foam also cuts easily under saws Shaping wing tips easy trace upper lower outlines respective sur faces cut between razor taking small cuts approach lines Next list will fuselage Clear flattest spot building board tape down piece unwrinkled brown wrapping paper Lay out fullsize pattern fuselage bottom using dimensions shown plan Build up fuselage pattern because building over plans makes hard read main thing remember measure everything twice before cutting once Fit fuselage parts together before gluing anything keep checking left- right-hand parts make sure same size install fuselage top until have completed fin horizontal tail control mechanism inside put wing skins before completing Flaperon tor que tube installations install fillets before have completed servo installations Got used stabilator setup half horizontal tail moves independ ently roll control move same direction pitch control scale airplane hardly worth effort plans show flying tail setup horizontal tail moves unit Its much simpler build will fly same Just make sure servo can give 150up-and-down motion measured leading edge stabilator next fin Make up tail assembly install shown plans During construction secure CG SA-l steering arms drilling /s holes torque tubes receive locking screw Drive screw tube secure against backing out dab epoxy Next list radio installation Once again plans show easy way used setup permitted aft ser vo pushed back forth forward servos order provide mixed pitch roll inputs stabil ator servo mounted hollow square cut 1/8 plywood bound epoxied 5/16 inside diameter aluminum tubes slide over 5/16 outside diameter brass tubes epoxied spruce beams laid across floor beams photos should make clear sug gestion use separate solidlymounted servos ailerons flying tail shown plans rate important thing get done before try install aft fairing covers will make area rather inaccessible Mount engine tank crutch June1976 33 Spruce beams added built-up tail cone prog ress Note aileron torque-tube installation SA-1 installed fillet area make room foam sleeve protecting receiver Nose block assembly built up around engine tank using bits sheet balsa Plywood flanges added later insure good gluing surface made available ANTI WARP TIP OPTIONAL /LATOR _-ABALSA BLOCK CONE -SLOT -- -fHSYM I/B PLY LAM/RAT/ONPR/i EBOND STAB SECT9/32 OIL BRASS TUBESEE TEXT SECT AA SECT B-B K K MTG hOLES FOR CL/PS w NO 335 S/IT BALSA NC 3/35 PLYWOOD 3/35 S/IT BALSA 2/IT BALSA BOTTOM NACELLE STAT/ONS SAND AS S/IOWN~A ---4 NACELLE ASSEMBLY B DETAILS NOTE CUTOUT NA B NB SIDES FROM FROM 1/4 S/IT BALSA NANB NACELLE KEY-3/3S S/IT BALSA 0 .-NA NF S/IT NiJJ4REq NB BLACK TRM SANG TO MATCH TE OF W/NG NEI/lB S/IT CAP S/IT ~If- BALSA NF 3-B TIP FA/RING OPTIONAL RUDDER SECT //IB S/IT BALSA 34 U END OF FLOOR 3/ 0I23 InCh FRONT VIEW OF WING PANEL- NOTE DIM AT YE OF WING TIP/TRAIL/NO EDGEji7&i/EL LINE-f BOTTOM WING COVER ///IE S/IT BALSA S REDO i ID STATIONSTI/RU CONE ACE TIP TIP FAIRING DETAIL 456 0 0 CD 0 0 1/4 TRIANGULAR STOCK 32 SIlT BALSA T ND LE7Zi7G- OF BEND flTT1.DR/LL T/IRU TO IBATCH 17fJ7JMOEJNT/NG SCREWS NACELLE BLANORIG GEAR CLIP 020 DURAL -4 REOb B NE-I/IN S/IT BALSANF 1/4 S/IT BALSA FLAT PATTERN SECT A-A~NOTE BAD 5//B 50-SAND ROUNDA /I B-i build up around scraps a sheet Leave carving until later its joined fuselage Something engine side crutch will have removable allow service dont know what engine will use Ill leave invent what need assembly com plete including provisions nose gear remove nose gear install rest front end fuselage Id like suggest use Hobbypoxy Formula adhesive plywood parts aliphatic resin like Titebond balsa working area Mark perimeter fillets lightly wing inner panel upper covers trim edge fuselage corre sponding slope provide gluing sur face fairing covers Cut triangles 1/16 balsa sheet grain parallel long edge install loca tions shown Always leave some setback line accommodate thick ness covers should tapered fit wing skins Glue covers place blend wing fuselage Plastic Wood Eoxolite get correct mistakes point Add doubler 1/16 balsa behind joint FS 215 finish wont making cracks did Mount a fuselage top make up hatch radio compart ment plans show way may need something else accommodate radio structure should strong enough accept reasonable hatch long dont cut up wing spar Install cabin blocks dont hollow out lightness main structural path engine loads goes through cabin area need wood can get particularly using larger engines last can what youve waiting impatiently ve have included sections fuselage should trace onto file cards Make station per card cut out inside Mark upper lower centerlines label card its station number have never done carv ing before its fun its easy begin whacking off corners taking short cuts stiff blade avoid splitting wood Now go back whack off new corners taking smaller cuts Check progress station cutouts guide cut next As ap proach final shape switch coarse sandpaper finer grades Make correc tions old friend Plastic Wood Man thats beautiful dont know model builder worthy name isnt turned nicely blended flowing lines thats what model has cant stand suspense glue wings dont install horizontal tail flaperons Weve got protect torque rod exit points finish materials little blending can sit back admire Build up nacelles like miniature fuselages fit wing lower surfaces want little carving thats done Now fun part Practically dislikes bending music wire can done some tools can make easier Get yourself copy Hard-to-find-Tools Brookstone Company Peterborough NH 03458 Look up items 1-23366 I23374 Extra-Hard Cutters spring wire bought theyre great Also see items U-16493 U-20180 Ive never tried hut look like could helpful Item U-15909 silver solder flux does superlative job bonding music wire brass tubes Allcraft Tool Supply Co Inc 215 Park Avenue Hicksville NY 11801 ob tain 3-prong plier item lB-b hollow-chop plier item IB-13 local hardware store obtain Vise-grip lever-action pliers made Peterson June 1976 35 Fuselage top cabin blocks added nose assembly model scaled 1/2A Pylon size recommended engine Cox 15 less power observe weights tips given text wing panels completed other shown comes Ace kit foam wing finished panel aileron torque tube shown installed Model has no vices flight BF-2 PVSELAGE SlOE PATTERN -3/32 SHY BALSA S REDO IFLAPERON BLOCK LOCATION RIBS"UTOUT TO MA TCH FUSELAGE SVES NOrTON Li~#I R-I WING COVER RIBS R-I THRO R-5 ARE I/IN SHY BALSA EXCEPT WHERE NOTED CUT THNU FOR 5/32 DIA TUBE LG BLOCK N-B REMOVE AFTER ASSEMBLY N 3 I/B SlIT BALSA R-4N-i R-6-I/3B PLYWOODDRILL THRU FOR 5/32 DIA TUBE SLIP FIT HOLE /1/I SHY BALSA N-I-FWD FAIRING COVER SNEDO N-i-I/B PLYWOOD N- 1/32 PLYWOOD SNED 0 G I/IN SlIT BALSA 02 CENTER FARNO COVER BRED 0 LGyRUTj i1L N 4 BPLY WOOD N-S 1/4 PLYWOOD TANK E2f -------- I -STA 215CUT T CUT THRUP/RBEVEL LINEiF-4 7§jJj4PLYWOJ F-3FORK F-4 -3/SB SHT BALSAF-2-3/JB SHT BALSA DRILL TAWU FOR 5/32 DIA TUBE SLIP FIT HOLE-BLOCKN-I-I/iS PLY1/4 SHT SPRUCE 4 REDO N-5-I/4 PLYWOOD JOINT2GI~FUSELAGE SIDE T2ii7 G- GRAIN DIRECTION FOR ALL RIBS SHDVN-SREOD OF EACH TYPE FUSE FLOOR F-3- I/N SHY BALSA 0I23 ABC0E FB FORMERS THRUM AREI/IN N-B -1/32 PLYWOODTYP GRAM DIRECTIORSHY BALSA 2 REDO,-JCINTTYP5PLCS 12-7/B I1KFRORT J__ LMSTA21B IS-I/B BB-T/B TRIM TO MATCH FUSE 'FUSELAGE FLOOR LAYOUT I/B SHY BALSA-I/4 SCALE SHOWN P-i-AFT FAMING COVER 2 REDO N-4 SILVER SOLDER iPLCS NOTE SEE TEXT FOR BEAMST/iSSB/iS ASSEMBLY DETAILS NOSE GEAR ASSEMBLY LG BLOCK ~1--I/BDIABRASS' BICYCLE-TUBE 3REGD Li SPOCKIMAIN GEAR LEG SNEODI/I6DIABRASS TUBE S 3/iS MW WASHER REDO ERS TUBE ID TO REDO MATCH BOLT WHEEL COLLAR 4Ij~ SLIP FITMAIN WHEEL BEAM SNEOD [jSHTi 0F3 F-I Mfg Co Dewitt NB Now e quipped made landing gear Incidentally free plugs benefit good tools paid cash dont find everywhere look Now youre ready work cut brass tube parts rolling tubes back forth workbench pressing down pocket-knife blade Keep fingers away cutting edge because tubes will sepa rate abruptly leaving nicely finished sur face Cut bend wire parts tools above Before soldering main gear walking beam assemblies make jig axles drilling three holes piece wood along straight line 1/8 diameter first two holes 27/32 apart third 29/32 Install 1 lengths /8 diam eter aluminum tubing holes support brass tubes form bearings axles Aluminum used because solder wont stick As semble wires tubes support proper alignment scraps balsa Make sure wire doesnt fit tightly aluminum tubes bent inward happens assembly will want roll circle finished thats bad Now silver-solder joints getting nice complete fillet joint can 27 Watt 6500F iron such used radio work will enough heat might mention couldnt find source reasonably scale wheels used slot car wheels T-5 made Twinn-K Inc Box 31228 Indianapolis Finishing decorating completed bot torn view shows methods attaching nacelles Main wheels slot-car T-5 Twinn K Inc nose wheels Super Jet ISee text IN 46231 sold card under name AJs Min-i-ture Car Racing Parts main wheels used eter Super Jet wheels Super Jet 826 Conklin St East Farmingdale NY 11735 nose wheels Shop around bit might find something better use slot car wheels talk man get something made last two years because older wheels poorer bond ing tires will spin off landing Use wheel collars left side plane prevent wheels un screwing themselves since slot car wheels right-hand thread far know nose gear made series bends bicycle spoke 10 longer starting threaded end forms main attachment youve got done bind short parallel section last parts come together blending plastic wood starts Dont use muchit adds weight Note hatch equipment locations All-flying tail works well place fine copper wire silversolder place anybody asks what lump tell its shimmy damper nose gear sup posed have surprising num ber models dont Solder axle tube bolt wheels #3-48 ine screw stopnut slip some pieces fuel tubing represent outer cylinder youre done Finishing covered model white Solarfilm working back-tofront bottom-to-top tip-to-center line have seams facing aft out down limits lifting caused fuel penetration wind pressure Trim black Monokote black Tactype 4948 letters buy art supply store transfer model rub ball-point pen 1 stars-and-bars old plastic kit Spray Aero-gloss fuel-proofer dope over everything keep place nose ribbon blue Monokote note two covering model Solarfllm best way proceed clear large space work use top drawing table measures 40 X 72 Next put something sur face protect model hangar rash knicks scratches come setting model tools hitting corners table use wedgeshaped foam pillow purpose Pro vide yourself fireproof place set Monokote iron Always try shrink both sides continued page 102 June1976 37 J B-i RC Sport/Van Putte continued page 15 difficulties flying site neighbors fellow RC fliers other aero modelers Most flying sites have neighbors close enough bothered some things Certain problems can nothing about can alleviate some potential clashes neighbors Mufflers work relatively small expense performance degrada tion incurred using mufflers certainly offset face flying site loss due excessive noise Invasions neighbors property have caused problems clubs Airplanes crash reasons beyond control certainly dont have go tramping through neighbors bean field retrieve airplane permission airspace above neighbors property belongs him too several flying sites have shut down due repeated viola tions airspace above irate neigh bors property lighter side have ever con sidered having Club Records Day sorts possibilities records involving RC airplanes Most involve speed duration events can tailored fit wide spectrum aircraft types Let suggest few events consideration Im sure can come up 1 Maximum Speed Two passes opposite directions made through speed trap average speed deter mined adding two elapsed times dividing twice distance pass Break down competition engine classes 2 Endurance easy need watch patient timer way once flew Phoenix V powered OS 60 Goldhead starting 12 ounces fuel 38 minutes 4 seconds take-off touch-down 3 Handicapped Endurance air plane gets 6 ounces fuel per cubic inch engine displacement 60 gets 36 ounces 40 gets 24 ounces pre pared some long times too Supertigre ST 60-powered Bar Fli once flew over 19 minutes 36 ounces fuel Once club has tried Records Day will make annual event club didits ball contest season about start earnest great contests hear about year getting ready make 1976 debut dont try few size hope see contest year Look up Ill under yellow green dining fly Eglin flag top address 12 Connie Drive Shahmar FL 32579 FF Sport/Kuenz continued page 39 ALW1JIJM 11JE FiLEt IN TIJ5 Sporty looking pseudo scale Navy Flier Sherman Gillespie rubber-powered free wheeling prop Span 26 Pic Jack Stewart get comments three-bladed prop used Grumman Wildcat built Earl Stahl plans prop same used Pres Bruning illustrator Shown sketch #1 its made two Skeeter props following manner Cut props half bevel cut edges hub approximately 120 degrees Lightly score hub area blades promote adhesion epoxy Now flat surfaceI use ceiling tile draw three lines 120 degrees apart point Push pin point perpendic ular surface Smear some oil Flying Near Airports Careful Free Flight Radio Control flying near airports situation might involve possibility models being vicinity full-scale aircraft operations must avoidedor conducted eliminate dangerous situations Models should flown proximity full-scale aircraft operations unless flyer has someone else him sole purpose watching full-scale aircraft supervising flying prevent accident possibilities B-i/Myers continued page 37 same time working progressively tip root Cover hatch cover before cover fuselage because some trimming always needed airplane easier trim working over complex shape like nose tail and/or wing intersections firmly attach Solarfilm large flat surfaces first provide anchorage film heat film iron hot air gun preferred pulling film practice can cover tennis ball piece film Take advantage fact film will stretch well will shrink Flying Balanced properly built true plane flies well Set smooth surface facing wind hold about back stick let run Dont hurry things can get trouble As plane climbs out relax little stick get very scale-like flight Trim level flight bank turn back flaperons ailerons set move least 150 up down roll rate will slow scale-like Pull up loop youll find turning tighter expected slowing down signi ficantly whenever nose held high due nearly-delta planform wing center section drag nacelles landing gear Take off youve got whole new airplane Theres just no way describe eerie feeling get plane flies over head command Its very realistic yet easily controllable engine quits its pretty good glider long keep nose down maintain flying speed yet slows down walk landing Ive cartwheeled couple times damage has wing tips props heat gun will pop out dents wingtips Enjoy 102 Model Aviation SKETCH #1
Edition: Model Aviation - 1976/06
Page Numbers: 31, 32, 33, 34, 35, 36, 37, 102
Right Firstclass scout Timothy J Myers presents finished B-i has merit badge full-size aircraft would believe Boy Scouts no longer offer merit badges model airplanes Below Build tail set up control arrangements try size flat bottom airplane Bottom Fuselage sides place right inner panel covered Fillet formers place right wing cover left wing shows internal details radical looking new Air Force bomber makes surprisingly good-flying RC model George M Myers ON DECEMBER 23 1974 B-i/Air Vehicle No 1 lifted off runway Palmdale CA 85-minute flight Air Force Flight Test Center Ed wards Air Force Base CA During flight variable sweep wings kept full forward position l50sweepback landing gear kept down locked Gross weight brake release 280000 pounds maximum speed flight 190 knots model represents aircraft particular instant time tended Sport Scale usage large enough accept radio equipment has sized around l/2A pylon racer rules will accept members L M Cox family engines 049 through 15 cubic inch displacement should make attractive hundreds thousands engine owners can use everything plans good 15 use snialler motors have weight sensitive Leave off landing gear 09 hand launch will look better flight anyhow go 049 use lightweight 2-servo airborne unit build very light Dont put landing-gear blocks consider replac ing nacelles silhouettes cut 1/8 balsa stuck wing model scaled photographs published various issues Aviation Week & Space Technology several deviations scale have included model Fixed wings rather variable sweep Thick wings match racer June 1976 31 12 \ AFT WING SKIN-I/IS SHT HATCH LINE EIi ~yjj k 1/4 SHE BALSA NATION -- II FVIEW B FUSELAGE AFT STATIONS F1F1 urnLJLJ BESSCRAP SHE BALSA1/4 SHE BALSA TOP ESCAPE CAPSILE OUTLINE n7 FLOOR JOINT -4PLC& R-S 1/4 XS/B 1/4 XS/B U123 Inches FUSELAGE SIDE --N-3 552 PYLON BRAND N-SF-II -TANK NI_____--N-4 Ii FUSELAGE FLOOR-SEE SHE SOFJ RAOIO COMPARTMENT HATCH F-S F-S R F _____ j FLAPERON BLOCK Iii II 10-35 NYLON BOLT SPRUCEliii TRAILING EDGE TOP SKIN LINE BOTTOM WING COVER NACELLE KEY IN BOTTOM WING COVER L4] UI] LEADING EDGE DETAIL R-BSEESHTSSBS II muI4-i i~BOT TOM SERVO TYPE MDUNTINGflGEAR B NACELLE CLIPWING COVER SCREWS-B REDO I-S/B DIA WHEELSDEONUE MMYENU B REOD IN VEHICLE NO1 w I3 0 0 CD 0 0 NOTE THE SYMBOL GDENOTES GRAIN DIRECTION OF BALSA WOOD PARTS STIlE SYMBOL TES FUSELAGE TOP OUTLINE NOSE DETAB M CDX 15 ENGINE BLACK TRIM FWD WING SKIN-I/IS SHE -~WING SKIN JOINT N-I--__ ABC FAIRING LINE I11CUT 01EFG SKIN FOR CLEARANCEL7/j714/]1k frnrmANGIA7JDC1 I/4X1/S SPRUCE I I/iS SHT PLYWOOD IIj FUSELAGE SIOEA IK N-T 5/32 DIA DURAL TUBE 2 455 215MODIFIED CG SL-ISS STEERING ARM LLOYD VBUNT INSTALL OORSAL AFTER SHAPING TOP B FIN 59 TUBING JIJ-FUEL /mN---3/4DIA WHEELS S REDO NOTE FOR LARDING GEAR DETAILS SEE SIlT 30F3 F-4 SHT 0F3 B-i rules Enlarged stabilator area stability increased control authority Commercial Spinner replacing radome air data probe commonsense safety precaution wing inboard panel trailing edges have faired completion permit /2A flying nacelles landing gear third servo motor propeller nose response lack suitable sizes jet turbines hobby market plan using larger engines plan add scale details ex pect finished weight around 44 ounces table below presents some compari sons may find interesting Iteml/2A Racer049 B-i15 B-iOM Racer Engine049/051 049 15 t oz 2010 32 4 40 sin Wing Area 200 sin 327 327300 sin Cross Sect85 sin1051052-1/2x5 CONSTRUCTION Begin buying necessary mate rials cut out parts work will go much faster make up kit yourself Pick C-grain balsa 4 5 pounds per cu ft stock Contest Grade wood planning build 049 engine Use 8- 9-pound stock 15 engines Start splitting foam wing stalling spar Any sharp knife will job use straight-edge guide cut make passes rather trying first cut Foam also cuts easily under saws Shaping wing tips easy trace upper lower outlines respective sur faces cut between razor taking small cuts approach lines Next list will fuselage Clear flattest spot building board tape down piece unwrinkled brown wrapping paper Lay out fullsize pattern fuselage bottom using dimensions shown plan Build up fuselage pattern because building over plans makes hard read main thing remember measure everything twice before cutting once Fit fuselage parts together before gluing anything keep checking left- right-hand parts make sure same size install fuselage top until have completed fin horizontal tail control mechanism inside put wing skins before completing Flaperon tor que tube installations install fillets before have completed servo installations Got used stabilator setup half horizontal tail moves independ ently roll control move same direction pitch control scale airplane hardly worth effort plans show flying tail setup horizontal tail moves unit Its much simpler build will fly same Just make sure servo can give 150up-and-down motion measured leading edge stabilator next fin Make up tail assembly install shown plans During construction secure CG SA-l steering arms drilling /s holes torque tubes receive locking screw Drive screw tube secure against backing out dab epoxy Next list radio installation Once again plans show easy way used setup permitted aft ser vo pushed back forth forward servos order provide mixed pitch roll inputs stabil ator servo mounted hollow square cut 1/8 plywood bound epoxied 5/16 inside diameter aluminum tubes slide over 5/16 outside diameter brass tubes epoxied spruce beams laid across floor beams photos should make clear sug gestion use separate solidlymounted servos ailerons flying tail shown plans rate important thing get done before try install aft fairing covers will make area rather inaccessible Mount engine tank crutch June1976 33 Spruce beams added built-up tail cone prog ress Note aileron torque-tube installation SA-1 installed fillet area make room foam sleeve protecting receiver Nose block assembly built up around engine tank using bits sheet balsa Plywood flanges added later insure good gluing surface made available ANTI WARP TIP OPTIONAL /LATOR _-ABALSA BLOCK CONE -SLOT -- -fHSYM I/B PLY LAM/RAT/ONPR/i EBOND STAB SECT9/32 OIL BRASS TUBESEE TEXT SECT AA SECT B-B K K MTG hOLES FOR CL/PS w NO 335 S/IT BALSA NC 3/35 PLYWOOD 3/35 S/IT BALSA 2/IT BALSA BOTTOM NACELLE STAT/ONS SAND AS S/IOWN~A ---4 NACELLE ASSEMBLY B DETAILS NOTE CUTOUT NA B NB SIDES FROM FROM 1/4 S/IT BALSA NANB NACELLE KEY-3/3S S/IT BALSA 0 .-NA NF S/IT NiJJ4REq NB BLACK TRM SANG TO MATCH TE OF W/NG NEI/lB S/IT CAP S/IT ~If- BALSA NF 3-B TIP FA/RING OPTIONAL RUDDER SECT //IB S/IT BALSA 34 U END OF FLOOR 3/ 0I23 InCh FRONT VIEW OF WING PANEL- NOTE DIM AT YE OF WING TIP/TRAIL/NO EDGEji7&i/EL LINE-f BOTTOM WING COVER ///IE S/IT BALSA S REDO i ID STATIONSTI/RU CONE ACE TIP TIP FAIRING DETAIL 456 0 0 CD 0 0 1/4 TRIANGULAR STOCK 32 SIlT BALSA T ND LE7Zi7G- OF BEND flTT1.DR/LL T/IRU TO IBATCH 17fJ7JMOEJNT/NG SCREWS NACELLE BLANORIG GEAR CLIP 020 DURAL -4 REOb B NE-I/IN S/IT BALSANF 1/4 S/IT BALSA FLAT PATTERN SECT A-A~NOTE BAD 5//B 50-SAND ROUNDA /I B-i build up around scraps a sheet Leave carving until later its joined fuselage Something engine side crutch will have removable allow service dont know what engine will use Ill leave invent what need assembly com plete including provisions nose gear remove nose gear install rest front end fuselage Id like suggest use Hobbypoxy Formula adhesive plywood parts aliphatic resin like Titebond balsa working area Mark perimeter fillets lightly wing inner panel upper covers trim edge fuselage corre sponding slope provide gluing sur face fairing covers Cut triangles 1/16 balsa sheet grain parallel long edge install loca tions shown Always leave some setback line accommodate thick ness covers should tapered fit wing skins Glue covers place blend wing fuselage Plastic Wood Eoxolite get correct mistakes point Add doubler 1/16 balsa behind joint FS 215 finish wont making cracks did Mount a fuselage top make up hatch radio compart ment plans show way may need something else accommodate radio structure should strong enough accept reasonable hatch long dont cut up wing spar Install cabin blocks dont hollow out lightness main structural path engine loads goes through cabin area need wood can get particularly using larger engines last can what youve waiting impatiently ve have included sections fuselage should trace onto file cards Make station per card cut out inside Mark upper lower centerlines label card its station number have never done carv ing before its fun its easy begin whacking off corners taking short cuts stiff blade avoid splitting wood Now go back whack off new corners taking smaller cuts Check progress station cutouts guide cut next As ap proach final shape switch coarse sandpaper finer grades Make correc tions old friend Plastic Wood Man thats beautiful dont know model builder worthy name isnt turned nicely blended flowing lines thats what model has cant stand suspense glue wings dont install horizontal tail flaperons Weve got protect torque rod exit points finish materials little blending can sit back admire Build up nacelles like miniature fuselages fit wing lower surfaces want little carving thats done Now fun part Practically dislikes bending music wire can done some tools can make easier Get yourself copy Hard-to-find-Tools Brookstone Company Peterborough NH 03458 Look up items 1-23366 I23374 Extra-Hard Cutters spring wire bought theyre great Also see items U-16493 U-20180 Ive never tried hut look like could helpful Item U-15909 silver solder flux does superlative job bonding music wire brass tubes Allcraft Tool Supply Co Inc 215 Park Avenue Hicksville NY 11801 ob tain 3-prong plier item lB-b hollow-chop plier item IB-13 local hardware store obtain Vise-grip lever-action pliers made Peterson June 1976 35 Fuselage top cabin blocks added nose assembly model scaled 1/2A Pylon size recommended engine Cox 15 less power observe weights tips given text wing panels completed other shown comes Ace kit foam wing finished panel aileron torque tube shown installed Model has no vices flight BF-2 PVSELAGE SlOE PATTERN -3/32 SHY BALSA S REDO IFLAPERON BLOCK LOCATION RIBS"UTOUT TO MA TCH FUSELAGE SVES NOrTON Li~#I R-I WING COVER RIBS R-I THRO R-5 ARE I/IN SHY BALSA EXCEPT WHERE NOTED CUT THNU FOR 5/32 DIA TUBE LG BLOCK N-B REMOVE AFTER ASSEMBLY N 3 I/B SlIT BALSA R-4N-i R-6-I/3B PLYWOODDRILL THRU FOR 5/32 DIA TUBE SLIP FIT HOLE /1/I SHY BALSA N-I-FWD FAIRING COVER SNEDO N-i-I/B PLYWOOD N- 1/32 PLYWOOD SNED 0 G I/IN SlIT BALSA 02 CENTER FARNO COVER BRED 0 LGyRUTj i1L N 4 BPLY WOOD N-S 1/4 PLYWOOD TANK E2f -------- I -STA 215CUT T CUT THRUP/RBEVEL LINEiF-4 7§jJj4PLYWOJ F-3FORK F-4 -3/SB SHT BALSAF-2-3/JB SHT BALSA DRILL TAWU FOR 5/32 DIA TUBE SLIP FIT HOLE-BLOCKN-I-I/iS PLY1/4 SHT SPRUCE 4 REDO N-5-I/4 PLYWOOD JOINT2GI~FUSELAGE SIDE T2ii7 G- GRAIN DIRECTION FOR ALL RIBS SHDVN-SREOD OF EACH TYPE FUSE FLOOR F-3- I/N SHY BALSA 0I23 ABC0E FB FORMERS THRUM AREI/IN N-B -1/32 PLYWOODTYP GRAM DIRECTIORSHY BALSA 2 REDO,-JCINTTYP5PLCS 12-7/B I1KFRORT J__ LMSTA21B IS-I/B BB-T/B TRIM TO MATCH FUSE 'FUSELAGE FLOOR LAYOUT I/B SHY BALSA-I/4 SCALE SHOWN P-i-AFT FAMING COVER 2 REDO N-4 SILVER SOLDER iPLCS NOTE SEE TEXT FOR BEAMST/iSSB/iS ASSEMBLY DETAILS NOSE GEAR ASSEMBLY LG BLOCK ~1--I/BDIABRASS' BICYCLE-TUBE 3REGD Li SPOCKIMAIN GEAR LEG SNEODI/I6DIABRASS TUBE S 3/iS MW WASHER REDO ERS TUBE ID TO REDO MATCH BOLT WHEEL COLLAR 4Ij~ SLIP FITMAIN WHEEL BEAM SNEOD [jSHTi 0F3 F-I Mfg Co Dewitt NB Now e quipped made landing gear Incidentally free plugs benefit good tools paid cash dont find everywhere look Now youre ready work cut brass tube parts rolling tubes back forth workbench pressing down pocket-knife blade Keep fingers away cutting edge because tubes will sepa rate abruptly leaving nicely finished sur face Cut bend wire parts tools above Before soldering main gear walking beam assemblies make jig axles drilling three holes piece wood along straight line 1/8 diameter first two holes 27/32 apart third 29/32 Install 1 lengths /8 diam eter aluminum tubing holes support brass tubes form bearings axles Aluminum used because solder wont stick As semble wires tubes support proper alignment scraps balsa Make sure wire doesnt fit tightly aluminum tubes bent inward happens assembly will want roll circle finished thats bad Now silver-solder joints getting nice complete fillet joint can 27 Watt 6500F iron such used radio work will enough heat might mention couldnt find source reasonably scale wheels used slot car wheels T-5 made Twinn-K Inc Box 31228 Indianapolis Finishing decorating completed bot torn view shows methods attaching nacelles Main wheels slot-car T-5 Twinn K Inc nose wheels Super Jet ISee text IN 46231 sold card under name AJs Min-i-ture Car Racing Parts main wheels used eter Super Jet wheels Super Jet 826 Conklin St East Farmingdale NY 11735 nose wheels Shop around bit might find something better use slot car wheels talk man get something made last two years because older wheels poorer bond ing tires will spin off landing Use wheel collars left side plane prevent wheels un screwing themselves since slot car wheels right-hand thread far know nose gear made series bends bicycle spoke 10 longer starting threaded end forms main attachment youve got done bind short parallel section last parts come together blending plastic wood starts Dont use muchit adds weight Note hatch equipment locations All-flying tail works well place fine copper wire silversolder place anybody asks what lump tell its shimmy damper nose gear sup posed have surprising num ber models dont Solder axle tube bolt wheels #3-48 ine screw stopnut slip some pieces fuel tubing represent outer cylinder youre done Finishing covered model white Solarfilm working back-tofront bottom-to-top tip-to-center line have seams facing aft out down limits lifting caused fuel penetration wind pressure Trim black Monokote black Tactype 4948 letters buy art supply store transfer model rub ball-point pen 1 stars-and-bars old plastic kit Spray Aero-gloss fuel-proofer dope over everything keep place nose ribbon blue Monokote note two covering model Solarfllm best way proceed clear large space work use top drawing table measures 40 X 72 Next put something sur face protect model hangar rash knicks scratches come setting model tools hitting corners table use wedgeshaped foam pillow purpose Pro vide yourself fireproof place set Monokote iron Always try shrink both sides continued page 102 June1976 37 J B-i RC Sport/Van Putte continued page 15 difficulties flying site neighbors fellow RC fliers other aero modelers Most flying sites have neighbors close enough bothered some things Certain problems can nothing about can alleviate some potential clashes neighbors Mufflers work relatively small expense performance degrada tion incurred using mufflers certainly offset face flying site loss due excessive noise Invasions neighbors property have caused problems clubs Airplanes crash reasons beyond control certainly dont have go tramping through neighbors bean field retrieve airplane permission airspace above neighbors property belongs him too several flying sites have shut down due repeated viola tions airspace above irate neigh bors property lighter side have ever con sidered having Club Records Day sorts possibilities records involving RC airplanes Most involve speed duration events can tailored fit wide spectrum aircraft types Let suggest few events consideration Im sure can come up 1 Maximum Speed Two passes opposite directions made through speed trap average speed deter mined adding two elapsed times dividing twice distance pass Break down competition engine classes 2 Endurance easy need watch patient timer way once flew Phoenix V powered OS 60 Goldhead starting 12 ounces fuel 38 minutes 4 seconds take-off touch-down 3 Handicapped Endurance air plane gets 6 ounces fuel per cubic inch engine displacement 60 gets 36 ounces 40 gets 24 ounces pre pared some long times too Supertigre ST 60-powered Bar Fli once flew over 19 minutes 36 ounces fuel Once club has tried Records Day will make annual event club didits ball contest season about start earnest great contests hear about year getting ready make 1976 debut dont try few size hope see contest year Look up Ill under yellow green dining fly Eglin flag top address 12 Connie Drive Shahmar FL 32579 FF Sport/Kuenz continued page 39 ALW1JIJM 11JE FiLEt IN TIJ5 Sporty looking pseudo scale Navy Flier Sherman Gillespie rubber-powered free wheeling prop Span 26 Pic Jack Stewart get comments three-bladed prop used Grumman Wildcat built Earl Stahl plans prop same used Pres Bruning illustrator Shown sketch #1 its made two Skeeter props following manner Cut props half bevel cut edges hub approximately 120 degrees Lightly score hub area blades promote adhesion epoxy Now flat surfaceI use ceiling tile draw three lines 120 degrees apart point Push pin point perpendic ular surface Smear some oil Flying Near Airports Careful Free Flight Radio Control flying near airports situation might involve possibility models being vicinity full-scale aircraft operations must avoidedor conducted eliminate dangerous situations Models should flown proximity full-scale aircraft operations unless flyer has someone else him sole purpose watching full-scale aircraft supervising flying prevent accident possibilities B-i/Myers continued page 37 same time working progressively tip root Cover hatch cover before cover fuselage because some trimming always needed airplane easier trim working over complex shape like nose tail and/or wing intersections firmly attach Solarfilm large flat surfaces first provide anchorage film heat film iron hot air gun preferred pulling film practice can cover tennis ball piece film Take advantage fact film will stretch well will shrink Flying Balanced properly built true plane flies well Set smooth surface facing wind hold about back stick let run Dont hurry things can get trouble As plane climbs out relax little stick get very scale-like flight Trim level flight bank turn back flaperons ailerons set move least 150 up down roll rate will slow scale-like Pull up loop youll find turning tighter expected slowing down signi ficantly whenever nose held high due nearly-delta planform wing center section drag nacelles landing gear Take off youve got whole new airplane Theres just no way describe eerie feeling get plane flies over head command Its very realistic yet easily controllable engine quits its pretty good glider long keep nose down maintain flying speed yet slows down walk landing Ive cartwheeled couple times damage has wing tips props heat gun will pop out dents wingtips Enjoy 102 Model Aviation SKETCH #1
Edition: Model Aviation - 1976/06
Page Numbers: 31, 32, 33, 34, 35, 36, 37, 102
Right Firstclass scout Timothy J Myers presents finished B-i has merit badge full-size aircraft would believe Boy Scouts no longer offer merit badges model airplanes Below Build tail set up control arrangements try size flat bottom airplane Bottom Fuselage sides place right inner panel covered Fillet formers place right wing cover left wing shows internal details radical looking new Air Force bomber makes surprisingly good-flying RC model George M Myers ON DECEMBER 23 1974 B-i/Air Vehicle No 1 lifted off runway Palmdale CA 85-minute flight Air Force Flight Test Center Ed wards Air Force Base CA During flight variable sweep wings kept full forward position l50sweepback landing gear kept down locked Gross weight brake release 280000 pounds maximum speed flight 190 knots model represents aircraft particular instant time tended Sport Scale usage large enough accept radio equipment has sized around l/2A pylon racer rules will accept members L M Cox family engines 049 through 15 cubic inch displacement should make attractive hundreds thousands engine owners can use everything plans good 15 use snialler motors have weight sensitive Leave off landing gear 09 hand launch will look better flight anyhow go 049 use lightweight 2-servo airborne unit build very light Dont put landing-gear blocks consider replac ing nacelles silhouettes cut 1/8 balsa stuck wing model scaled photographs published various issues Aviation Week & Space Technology several deviations scale have included model Fixed wings rather variable sweep Thick wings match racer June 1976 31 12 \ AFT WING SKIN-I/IS SHT HATCH LINE EIi ~yjj k 1/4 SHE BALSA NATION -- II FVIEW B FUSELAGE AFT STATIONS F1F1 urnLJLJ BESSCRAP SHE BALSA1/4 SHE BALSA TOP ESCAPE CAPSILE OUTLINE n7 FLOOR JOINT -4PLC& R-S 1/4 XS/B 1/4 XS/B U123 Inches FUSELAGE SIDE --N-3 552 PYLON BRAND N-SF-II -TANK NI_____--N-4 Ii FUSELAGE FLOOR-SEE SHE SOFJ RAOIO COMPARTMENT HATCH F-S F-S R F _____ j FLAPERON BLOCK Iii II 10-35 NYLON BOLT SPRUCEliii TRAILING EDGE TOP SKIN LINE BOTTOM WING COVER NACELLE KEY IN BOTTOM WING COVER L4] UI] LEADING EDGE DETAIL R-BSEESHTSSBS II muI4-i i~BOT TOM SERVO TYPE MDUNTINGflGEAR B NACELLE CLIPWING COVER SCREWS-B REDO I-S/B DIA WHEELSDEONUE MMYENU B REOD IN VEHICLE NO1 w I3 0 0 CD 0 0 NOTE THE SYMBOL GDENOTES GRAIN DIRECTION OF BALSA WOOD PARTS STIlE SYMBOL TES FUSELAGE TOP OUTLINE NOSE DETAB M CDX 15 ENGINE BLACK TRIM FWD WING SKIN-I/IS SHE -~WING SKIN JOINT N-I--__ ABC FAIRING LINE I11CUT 01EFG SKIN FOR CLEARANCEL7/j714/]1k frnrmANGIA7JDC1 I/4X1/S SPRUCE I I/iS SHT PLYWOOD IIj FUSELAGE SIOEA IK N-T 5/32 DIA DURAL TUBE 2 455 215MODIFIED CG SL-ISS STEERING ARM LLOYD VBUNT INSTALL OORSAL AFTER SHAPING TOP B FIN 59 TUBING JIJ-FUEL /mN---3/4DIA WHEELS S REDO NOTE FOR LARDING GEAR DETAILS SEE SIlT 30F3 F-4 SHT 0F3 B-i rules Enlarged stabilator area stability increased control authority Commercial Spinner replacing radome air data probe commonsense safety precaution wing inboard panel trailing edges have faired completion permit /2A flying nacelles landing gear third servo motor propeller nose response lack suitable sizes jet turbines hobby market plan using larger engines plan add scale details ex pect finished weight around 44 ounces table below presents some compari sons may find interesting Iteml/2A Racer049 B-i15 B-iOM Racer Engine049/051 049 15 t oz 2010 32 4 40 sin Wing Area 200 sin 327 327300 sin Cross Sect85 sin1051052-1/2x5 CONSTRUCTION Begin buying necessary mate rials cut out parts work will go much faster make up kit yourself Pick C-grain balsa 4 5 pounds per cu ft stock Contest Grade wood planning build 049 engine Use 8- 9-pound stock 15 engines Start splitting foam wing stalling spar Any sharp knife will job use straight-edge guide cut make passes rather trying first cut Foam also cuts easily under saws Shaping wing tips easy trace upper lower outlines respective sur faces cut between razor taking small cuts approach lines Next list will fuselage Clear flattest spot building board tape down piece unwrinkled brown wrapping paper Lay out fullsize pattern fuselage bottom using dimensions shown plan Build up fuselage pattern because building over plans makes hard read main thing remember measure everything twice before cutting once Fit fuselage parts together before gluing anything keep checking left- right-hand parts make sure same size install fuselage top until have completed fin horizontal tail control mechanism inside put wing skins before completing Flaperon tor que tube installations install fillets before have completed servo installations Got used stabilator setup half horizontal tail moves independ ently roll control move same direction pitch control scale airplane hardly worth effort plans show flying tail setup horizontal tail moves unit Its much simpler build will fly same Just make sure servo can give 150up-and-down motion measured leading edge stabilator next fin Make up tail assembly install shown plans During construction secure CG SA-l steering arms drilling /s holes torque tubes receive locking screw Drive screw tube secure against backing out dab epoxy Next list radio installation Once again plans show easy way used setup permitted aft ser vo pushed back forth forward servos order provide mixed pitch roll inputs stabil ator servo mounted hollow square cut 1/8 plywood bound epoxied 5/16 inside diameter aluminum tubes slide over 5/16 outside diameter brass tubes epoxied spruce beams laid across floor beams photos should make clear sug gestion use separate solidlymounted servos ailerons flying tail shown plans rate important thing get done before try install aft fairing covers will make area rather inaccessible Mount engine tank crutch June1976 33 Spruce beams added built-up tail cone prog ress Note aileron torque-tube installation SA-1 installed fillet area make room foam sleeve protecting receiver Nose block assembly built up around engine tank using bits sheet balsa Plywood flanges added later insure good gluing surface made available ANTI WARP TIP OPTIONAL /LATOR _-ABALSA BLOCK CONE -SLOT -- -fHSYM I/B PLY LAM/RAT/ONPR/i EBOND STAB SECT9/32 OIL BRASS TUBESEE TEXT SECT AA SECT B-B K K MTG hOLES FOR CL/PS w NO 335 S/IT BALSA NC 3/35 PLYWOOD 3/35 S/IT BALSA 2/IT BALSA BOTTOM NACELLE STAT/ONS SAND AS S/IOWN~A ---4 NACELLE ASSEMBLY B DETAILS NOTE CUTOUT NA B NB SIDES FROM FROM 1/4 S/IT BALSA NANB NACELLE KEY-3/3S S/IT BALSA 0 .-NA NF S/IT NiJJ4REq NB BLACK TRM SANG TO MATCH TE OF W/NG NEI/lB S/IT CAP S/IT ~If- BALSA NF 3-B TIP FA/RING OPTIONAL RUDDER SECT //IB S/IT BALSA 34 U END OF FLOOR 3/ 0I23 InCh FRONT VIEW OF WING PANEL- NOTE DIM AT YE OF WING TIP/TRAIL/NO EDGEji7&i/EL LINE-f BOTTOM WING COVER ///IE S/IT BALSA S REDO i ID STATIONSTI/RU CONE ACE TIP TIP FAIRING DETAIL 456 0 0 CD 0 0 1/4 TRIANGULAR STOCK 32 SIlT BALSA T ND LE7Zi7G- OF BEND flTT1.DR/LL T/IRU TO IBATCH 17fJ7JMOEJNT/NG SCREWS NACELLE BLANORIG GEAR CLIP 020 DURAL -4 REOb B NE-I/IN S/IT BALSANF 1/4 S/IT BALSA FLAT PATTERN SECT A-A~NOTE BAD 5//B 50-SAND ROUNDA /I B-i build up around scraps a sheet Leave carving until later its joined fuselage Something engine side crutch will have removable allow service dont know what engine will use Ill leave invent what need assembly com plete including provisions nose gear remove nose gear install rest front end fuselage Id like suggest use Hobbypoxy Formula adhesive plywood parts aliphatic resin like Titebond balsa working area Mark perimeter fillets lightly wing inner panel upper covers trim edge fuselage corre sponding slope provide gluing sur face fairing covers Cut triangles 1/16 balsa sheet grain parallel long edge install loca tions shown Always leave some setback line accommodate thick ness covers should tapered fit wing skins Glue covers place blend wing fuselage Plastic Wood Eoxolite get correct mistakes point Add doubler 1/16 balsa behind joint FS 215 finish wont making cracks did Mount a fuselage top make up hatch radio compart ment plans show way may need something else accommodate radio structure should strong enough accept reasonable hatch long dont cut up wing spar Install cabin blocks dont hollow out lightness main structural path engine loads goes through cabin area need wood can get particularly using larger engines last can what youve waiting impatiently ve have included sections fuselage should trace onto file cards Make station per card cut out inside Mark upper lower centerlines label card its station number have never done carv ing before its fun its easy begin whacking off corners taking short cuts stiff blade avoid splitting wood Now go back whack off new corners taking smaller cuts Check progress station cutouts guide cut next As ap proach final shape switch coarse sandpaper finer grades Make correc tions old friend Plastic Wood Man thats beautiful dont know model builder worthy name isnt turned nicely blended flowing lines thats what model has cant stand suspense glue wings dont install horizontal tail flaperons Weve got protect torque rod exit points finish materials little blending can sit back admire Build up nacelles like miniature fuselages fit wing lower surfaces want little carving thats done Now fun part Practically dislikes bending music wire can done some tools can make easier Get yourself copy Hard-to-find-Tools Brookstone Company Peterborough NH 03458 Look up items 1-23366 I23374 Extra-Hard Cutters spring wire bought theyre great Also see items U-16493 U-20180 Ive never tried hut look like could helpful Item U-15909 silver solder flux does superlative job bonding music wire brass tubes Allcraft Tool Supply Co Inc 215 Park Avenue Hicksville NY 11801 ob tain 3-prong plier item lB-b hollow-chop plier item IB-13 local hardware store obtain Vise-grip lever-action pliers made Peterson June 1976 35 Fuselage top cabin blocks added nose assembly model scaled 1/2A Pylon size recommended engine Cox 15 less power observe weights tips given text wing panels completed other shown comes Ace kit foam wing finished panel aileron torque tube shown installed Model has no vices flight BF-2 PVSELAGE SlOE PATTERN -3/32 SHY BALSA S REDO IFLAPERON BLOCK LOCATION RIBS"UTOUT TO MA TCH FUSELAGE SVES NOrTON Li~#I R-I WING COVER RIBS R-I THRO R-5 ARE I/IN SHY BALSA EXCEPT WHERE NOTED CUT THNU FOR 5/32 DIA TUBE LG BLOCK N-B REMOVE AFTER ASSEMBLY N 3 I/B SlIT BALSA R-4N-i R-6-I/3B PLYWOODDRILL THRU FOR 5/32 DIA TUBE SLIP FIT HOLE /1/I SHY BALSA N-I-FWD FAIRING COVER SNEDO N-i-I/B PLYWOOD N- 1/32 PLYWOOD SNED 0 G I/IN SlIT BALSA 02 CENTER FARNO COVER BRED 0 LGyRUTj i1L N 4 BPLY WOOD N-S 1/4 PLYWOOD TANK E2f -------- I -STA 215CUT T CUT THRUP/RBEVEL LINEiF-4 7§jJj4PLYWOJ F-3FORK F-4 -3/SB SHT BALSAF-2-3/JB SHT BALSA DRILL TAWU FOR 5/32 DIA TUBE SLIP FIT HOLE-BLOCKN-I-I/iS PLY1/4 SHT SPRUCE 4 REDO N-5-I/4 PLYWOOD JOINT2GI~FUSELAGE SIDE T2ii7 G- GRAIN DIRECTION FOR ALL RIBS SHDVN-SREOD OF EACH TYPE FUSE FLOOR F-3- I/N SHY BALSA 0I23 ABC0E FB FORMERS THRUM AREI/IN N-B -1/32 PLYWOODTYP GRAM DIRECTIORSHY BALSA 2 REDO,-JCINTTYP5PLCS 12-7/B I1KFRORT J__ LMSTA21B IS-I/B BB-T/B TRIM TO MATCH FUSE 'FUSELAGE FLOOR LAYOUT I/B SHY BALSA-I/4 SCALE SHOWN P-i-AFT FAMING COVER 2 REDO N-4 SILVER SOLDER iPLCS NOTE SEE TEXT FOR BEAMST/iSSB/iS ASSEMBLY DETAILS NOSE GEAR ASSEMBLY LG BLOCK ~1--I/BDIABRASS' BICYCLE-TUBE 3REGD Li SPOCKIMAIN GEAR LEG SNEODI/I6DIABRASS TUBE S 3/iS MW WASHER REDO ERS TUBE ID TO REDO MATCH BOLT WHEEL COLLAR 4Ij~ SLIP FITMAIN WHEEL BEAM SNEOD [jSHTi 0F3 F-I Mfg Co Dewitt NB Now e quipped made landing gear Incidentally free plugs benefit good tools paid cash dont find everywhere look Now youre ready work cut brass tube parts rolling tubes back forth workbench pressing down pocket-knife blade Keep fingers away cutting edge because tubes will sepa rate abruptly leaving nicely finished sur face Cut bend wire parts tools above Before soldering main gear walking beam assemblies make jig axles drilling three holes piece wood along straight line 1/8 diameter first two holes 27/32 apart third 29/32 Install 1 lengths /8 diam eter aluminum tubing holes support brass tubes form bearings axles Aluminum used because solder wont stick As semble wires tubes support proper alignment scraps balsa Make sure wire doesnt fit tightly aluminum tubes bent inward happens assembly will want roll circle finished thats bad Now silver-solder joints getting nice complete fillet joint can 27 Watt 6500F iron such used radio work will enough heat might mention couldnt find source reasonably scale wheels used slot car wheels T-5 made Twinn-K Inc Box 31228 Indianapolis Finishing decorating completed bot torn view shows methods attaching nacelles Main wheels slot-car T-5 Twinn K Inc nose wheels Super Jet ISee text IN 46231 sold card under name AJs Min-i-ture Car Racing Parts main wheels used eter Super Jet wheels Super Jet 826 Conklin St East Farmingdale NY 11735 nose wheels Shop around bit might find something better use slot car wheels talk man get something made last two years because older wheels poorer bond ing tires will spin off landing Use wheel collars left side plane prevent wheels un screwing themselves since slot car wheels right-hand thread far know nose gear made series bends bicycle spoke 10 longer starting threaded end forms main attachment youve got done bind short parallel section last parts come together blending plastic wood starts Dont use muchit adds weight Note hatch equipment locations All-flying tail works well place fine copper wire silversolder place anybody asks what lump tell its shimmy damper nose gear sup posed have surprising num ber models dont Solder axle tube bolt wheels #3-48 ine screw stopnut slip some pieces fuel tubing represent outer cylinder youre done Finishing covered model white Solarfilm working back-tofront bottom-to-top tip-to-center line have seams facing aft out down limits lifting caused fuel penetration wind pressure Trim black Monokote black Tactype 4948 letters buy art supply store transfer model rub ball-point pen 1 stars-and-bars old plastic kit Spray Aero-gloss fuel-proofer dope over everything keep place nose ribbon blue Monokote note two covering model Solarfllm best way proceed clear large space work use top drawing table measures 40 X 72 Next put something sur face protect model hangar rash knicks scratches come setting model tools hitting corners table use wedgeshaped foam pillow purpose Pro vide yourself fireproof place set Monokote iron Always try shrink both sides continued page 102 June1976 37 J B-i RC Sport/Van Putte continued page 15 difficulties flying site neighbors fellow RC fliers other aero modelers Most flying sites have neighbors close enough bothered some things Certain problems can nothing about can alleviate some potential clashes neighbors Mufflers work relatively small expense performance degrada tion incurred using mufflers certainly offset face flying site loss due excessive noise Invasions neighbors property have caused problems clubs Airplanes crash reasons beyond control certainly dont have go tramping through neighbors bean field retrieve airplane permission airspace above neighbors property belongs him too several flying sites have shut down due repeated viola tions airspace above irate neigh bors property lighter side have ever con sidered having Club Records Day sorts possibilities records involving RC airplanes Most involve speed duration events can tailored fit wide spectrum aircraft types Let suggest few events consideration Im sure can come up 1 Maximum Speed Two passes opposite directions made through speed trap average speed deter mined adding two elapsed times dividing twice distance pass Break down competition engine classes 2 Endurance easy need watch patient timer way once flew Phoenix V powered OS 60 Goldhead starting 12 ounces fuel 38 minutes 4 seconds take-off touch-down 3 Handicapped Endurance air plane gets 6 ounces fuel per cubic inch engine displacement 60 gets 36 ounces 40 gets 24 ounces pre pared some long times too Supertigre ST 60-powered Bar Fli once flew over 19 minutes 36 ounces fuel Once club has tried Records Day will make annual event club didits ball contest season about start earnest great contests hear about year getting ready make 1976 debut dont try few size hope see contest year Look up Ill under yellow green dining fly Eglin flag top address 12 Connie Drive Shahmar FL 32579 FF Sport/Kuenz continued page 39 ALW1JIJM 11JE FiLEt IN TIJ5 Sporty looking pseudo scale Navy Flier Sherman Gillespie rubber-powered free wheeling prop Span 26 Pic Jack Stewart get comments three-bladed prop used Grumman Wildcat built Earl Stahl plans prop same used Pres Bruning illustrator Shown sketch #1 its made two Skeeter props following manner Cut props half bevel cut edges hub approximately 120 degrees Lightly score hub area blades promote adhesion epoxy Now flat surfaceI use ceiling tile draw three lines 120 degrees apart point Push pin point perpendic ular surface Smear some oil Flying Near Airports Careful Free Flight Radio Control flying near airports situation might involve possibility models being vicinity full-scale aircraft operations must avoidedor conducted eliminate dangerous situations Models should flown proximity full-scale aircraft operations unless flyer has someone else him sole purpose watching full-scale aircraft supervising flying prevent accident possibilities B-i/Myers continued page 37 same time working progressively tip root Cover hatch cover before cover fuselage because some trimming always needed airplane easier trim working over complex shape like nose tail and/or wing intersections firmly attach Solarfilm large flat surfaces first provide anchorage film heat film iron hot air gun preferred pulling film practice can cover tennis ball piece film Take advantage fact film will stretch well will shrink Flying Balanced properly built true plane flies well Set smooth surface facing wind hold about back stick let run Dont hurry things can get trouble As plane climbs out relax little stick get very scale-like flight Trim level flight bank turn back flaperons ailerons set move least 150 up down roll rate will slow scale-like Pull up loop youll find turning tighter expected slowing down signi ficantly whenever nose held high due nearly-delta planform wing center section drag nacelles landing gear Take off youve got whole new airplane Theres just no way describe eerie feeling get plane flies over head command Its very realistic yet easily controllable engine quits its pretty good glider long keep nose down maintain flying speed yet slows down walk landing Ive cartwheeled couple times damage has wing tips props heat gun will pop out dents wingtips Enjoy 102 Model Aviation SKETCH #1