AA PYLON RACING using WILLI Wisconsin-Illinois rules has proven interesting aspect aero modeling hobby reasons however some obvi ous ones Friendly competition racers suc cess dependent upon well does against fellow contestants five rounds heat assignment system used wherein no individual competitor has continually race against known hot dogs circuit though individual wants win real en joyment due friendly competitive spirit WILLI contestants Lack sophisticated equipment rules required conduct contest stopwatch flag three pylon poles starting line caller con testant optional three pylon judges starter Fellow contestants often handle lap counting pylon judging out adversely affecting integrity contest 32 Model Aviation model received Its name means fiat worm friendly competitor said airplane looked like worm viewed under microscope college addl tion identification wing numbers help orientation going around pylons Everyone tries RC Pylon Racing tells us gets bloodand want An easy way get started class model built has done well WILLI races rules bit different AMAA Pylon text has lot good advice about make small models flag signal-from starter point objective make 10 laps around pylons cutting finish ahead other racers Simple design parameters air craft wing must constant chord minimum area 200 sq minimum thickness /8 fuselage must least 2Y2 high including wing thickness must have minimum cross-sectional area 6 sq both dimensions occurring between wing leading trailing edges over weight tolerance less fuel 20 32 oz engines used stock 049 051 Cox TDs no modifications allowed other lapping piston crank Any kind needle valve assembly may used fuel normally 25% nitro supplied hosting club No fuel pressurization allowed Regardless what anyone may tell smooth con sistent runs can easily attained Cox TD engines fuel pressurization No flying wings pod-and-boom air craft allowed means remotely stopping engine required Winning strategy Dont get mistaken notion WILLI circuit com prised cream-puff rules neutralize contestant ingenuity given day techniques quest consistently win regardless racing Through experimentation have reached following conclusions Cox TD engine must run reliably full po wer can achieved prop erly lapping engine correctly mounting engine fuel tank rigidity fuselage also very impor tant avoid vibration easy way lap-in piston cyl inder use old Cox Babe Bee crankcase assembly electric starter First closely inspect piston cylinder loose metal particles burrs gouges scratches Remove loose particles burrs gouges scratches serious get new piston cylinder assembly Second using rod-setting tool snug up rod piston socket elimi nate end play careful however tighten too much rod should still freely pivot side side free ly rotate piston Third add light oil rod crank pin hole piston ball joint install piston cylinder onto old Babe Bee other Cox 049105 1 crankcase has approximately A2 removed portion cylinder mounts will allow piston travel above its normal top limit lap ping purposes Fourth apply automotive polishing Upon notification starter contestant has 90 seconds start engine get starting line contestant hand launches plane after racer has act together can beat pants off youre pre pared Throughout years have tried different aircraft designs racing compound cylinder piston bottom its stroke Crank over assembly hand work com pound Next turn over engine model aerodynamically very clean exposed hardware consists engine DuBro switch elevator horn tenna trailIng out back Though thIs version desIgn has conventIonal tall surfaces author prefers T-tall configuration though T-tail susceptible damage happen make bad landing model has much success WILLI circuit January1985 33 really perform about five seconds electric starter Fifth remove piston cylinder assembly clean thoroughly soap water careful get water piston/rod ball joint Reassemble piston cylinder push piston /32 above top dead center piston should stick place assembly held vertical posi tion however should fall out given slight tap finger assembly too tight relap assembly too loose its too late anything about test run assembly anyhow Sixth reassemble lapped piston rod TD crankcase oiling parts thoroughly Seventh mount engine test stand run rich setting 20000 rpm about 2 mm prop should used test running Master Air Screw MAS 51A-4 cut down 4% dia balanced Let engine cool about 2 mm restart run another 2 mm 22000 rpm Let engine cool another 2 mm Restart engine run 20 mm alternating between 20000 rpm 23000 rpm 2 mm Install MAS 51A-4 cut down 4% dia balanced run engine prop should used racing Maximum rpm prop should range 21000 22000 rpm order engine competitive must go contest prepared worst Make sure starting equip ment radio equipment A-l shape fully charged Check glow plug performance comparison new plug rpm drops 250 dont use old plug backup airplane absolute neces sity plan competitive through out season drive hundreds miles race sit watch everyone else having fun because plane damaged during test flights log should kept engines equipment order document ef fects changes made Always use same test prop monitoring performance Test flights absolutely essential ensure proper engine run trim out aircraft aircraft must simple clean 34 Model Aviation Side-mounting allows consistent fuel draw because centerlines venturi fuel tank match up Running inc uei lines through firewall mount produces clean frontal profile Note use 5-40 socket head cap screw mounting propeller Left isa collection airborne hardware required model short base-loaded antenna allows enough range doesnt produce drag full-length Right well-organized neat radio installation assures flawless performance flight after fiight Left Make parts before beginning assembly actual building time can reduced less 20 hours Above Au Lite Ply parts can made 1/8 sheet sized 12 xl 6 Make sure Lite Ply sheet use doesnt have large warps LIIULII WUOKI b Hank tIatHE PLOT CRCKENS SEARCi4 -TNt CLOUD V -ON ThE GOUNO -THINK 0 K K LLER OFF TO PLOT 5P -YEAH SHANGHAI P PATrEPNS 0NTI STMNGI THATS PLUSTIIAT WAS THEIR NOM ThISHAWK NOW RANGES BUSYMN 7-WELL FROM TO X PLUS 20 30 RADIUS PLUSBASE ASTUElOOM LES OUT 0WHEN F Nb TIO5E WHEPE AND FIRST Aw DO MORE BUTGIRLS LL BE BUSY ELSETHEM ON THE GROUN BACK HOME 70 GTRIP-TOO- WORK NGWTH AT V-y TOw ME OFF THAT BLONDEYOU ANO WOO N WANTS NONEOFMEV__ALL OPTHEM pSHE E AMADO *THEc WAYOP~ THRU GOLD N ROD FROM SULLIVAN W TO ALERON COX TO 049 OR 051 ON FOURMOST I/2A MOUNT F-i I/4PLY MOUNT PLATE 1~ 438 TRIANGLE S1OCKALLCORNERS 1/32 PLY REINF AS HOLDOOWN PLATE K F-3 I/4PLY FORMER 1/8 LITE PLY SPAR JOINERATC/S I/8SIG LITE PLY SIDES TOPArD BOTTOM DUBRO 108 QUIK UNK DUBRO 107 HORN 1/8 LITE PLY STAB AND ELEVAlOR /4 BALSA TRIM TAB ON SOFT WIRE 3/8 TRIANGLE LE FIN /4 SOLID BLOCK FOR HOLDDcMN SCREW NOTCH FOR RIBS TIP PLATES 3/8X V2 BALSA TRAILING EDGE 1/16 SHEET LE COVER TOPANDBQITOM RIBS SHOW AS BALSA BUT PLAN CALLS FOR LITE PLY HALF LAP NOTCHES I/B LITE PLV FRONT HOLD DOWN TAKES I/eLITE PLY TAB UNDER LE 1/4 BALSAWING SADDLE FROM 2T0 3 ONLY AD I/4PLY FORMER Left Build wing straightoverthe plan Author recommends use athick cyanoacrylate glue Notches leading andtrailing edges help alignment Right Use masking tape mark saw lines sweepback sure sawing perpendicular bottom Left Add 1/16 balsa sheeting center wing Note sheeting inset between center ribs top Right see cutout wing sheeting clearing elevator servo tongue holding wing frontto fuselage strong light stable predictable have thus far gone through least dozen different designs trying achieve ultimate WILLI AA Pylon Racer Platyhelminthes series has proven successful allowing accu mulate WILLI points 1983 racing season aircraft has above qualities quickbuilding inexpensive Construction first step ensure short successful building session cut out rough-sand parts done lightly contact-cementing extra set plans onto wood sawing out component ribs should cut groups five ensure uniformity save time Also cut out aileron install aileron torque rod tube construction straightforward should able complete entire assembly approx imately 20 hours Start taping set plans building board taping waxed paper over plans wing should constructed first Position tape trailing edge flat plans Assemble ribs trail ing edge Insert leading edge ribs align plans Glue ribs leading trailing edges recommend using thick cyanoacrylate CyA Position glue top main spar Remove wing plans Turn over install glue bottom main spar Add bottom leading edge sheeting trim sand leading edge Remove wing plans add top leading edge sheeting trim Glue wing tips Mark saw lines masking tape saw out center tapered portion Glue wing halves together Shim leading edges trailing edges same height building board before gluing will have unwanted anhedral dihedral Install tongue front wing Add main spar reinforcement piece sheeting center section plywood top plate onto trail ing edge Sand entire wing finish size careful maintain minimum wing thickness 7/ main spars wing now ready servo installation covering Fuselage Install blind nuts Fl drill fuel line holes Fourmost mount Fl Pin front rear top portions fuselage down plans glue fuselage sides top rear portion Locate glue F4 triangular stock between top sides Glue F2 front top portion fuselage glue sides F2 lace glued Position Fl using squar ing block glue front top ly Glue triangular stock top between Fl F2 36 Model Aviation Above Aftersawing thewing halves recheckto make surethe saw lines straight Right Glue wing halvestogetherwith leading trailing edges atthe same height off building board Use whatever scraps have laying around shim necessary Steel squaring blocks used aligning fuselage sides firewall formers Firewall misalignment can disastrous BOTTOM VIEW V5 20 ftftI rF~7IP4 /7/ I~iii-ii- — ______________ // / TOP SWEETING OMITTED U CLA BITT \\IAiV\ I I / [BX.BETEBEE CONOTBOCTIOS CR21 BSSP B1 Ir-rm ENB B BBSSEA -BECBMM20 UA EBOBOBS NOE AD IIB EBSE0000 ION BE ESO KLI MAIM STAB BEIBTOBOEMENT PIECE IS OBEETISO OMITTED FOB CLABI BILL O MATERIALS B S-4A CO BOO IOCAP BOBEU 1131 SM BALSA TMSLISO BOOR 4BRSEIOCB I4I2oBBSIr LI TB-PLY PLAITS COBb BOB 4-40 BLEW MIT IDUBAO ABS AILEBOM BALL LBD AllFD ARP UOII1A LIMITS52031 G EE 7 BE B SIDE SHEETIBS OBMTTED WRAP BOOS WICOPPEB / WISE ABS SOLDER/34 OSETOEB OS SPLICE ?KE WITB LEBOTO OF IOPT ORAL EBPEBBASE PLATYHELMINTHES L[ ORSISBEB BOBAWN BY 122A BCTBACED N IRKED BY JAMES AILBEBBACAPYLON MACEM BIOS GLEASON 0 2555B7 5 Full-Size Plans Available. See Page 180 BA LSA SCRAP BARJN0SWB Glue sides Fl triangular stock Position glue F3 sides Position glue bottom triangular stock add rear bottom portion Remove assembly plans Fuel proof fuel tank radio com partments including inside portion front bottom Glue front bot tom portion Install Fourmost mount sand fuselage shape Assembly wing can now fitted fuselage Position wing wing saddle shape saddle wing leading trailing edges parallel top fuselage both side side front back ie 00 incidence Install rear wing hold-down plate Align wing wing tips equidistant square fuselage centerline within /16 Clamp wing position spot-drill through wing rear wing hold-down plate fuselage Remove wing drill through hold-down plate add blind nut Now align install front wing plate wish build aircraft T-tail vertical stabilizer should added point radio engine fuel tank hardware should now installed ensure no binding interference exists Disassemble parts finish-sand entire aircraft recommendation covering finishing use iron-on covering throughout allows easy repair after unfortunate acci dents occur racing saves time finishing Super MonoKote hinges have also worked out well horizon tal stabilizer After covering reassemble com ponents Position aircraft building board fuselage top par allel building board front back side side 6-in ruler meas ure up building board leading trailing edges check warps Set up wing absolutely true A-in washout trailing edge Use heat gun twist get right Now check balance point TrImming flying AA Pylon Racers critical trim adjustment made rudder trim tab ver tical stabilizer slightly misaligned aircraft will screw ground right after launch especially stabili zer causes left-hand turn therefore sug gest vertical stabilizer aligned extreme care follow first flight procedure listed below 1 Select day wind tween 5 15 mph 2 Range-check radio make sure controls move freely 3 Test run engine set run just tad rich 4 Set rudder trim tab / right back edge 5 Trim elevator level down 6 Have assistant launch plane straight wind giving fairly strong heave keeping wing straight level 7 Avoid giving much up-elevator after launch until good flying speed has reached 8 Adjust aileron elevator level flight very slight left turn 9 Observe plane corners around pylon turns nose-high rudder trim tab will have adjusted left slightly turns nose-low tab will have adjusted right slightly After rudder adjustment will necessary retrim aileron 10 The aircraft set up fixed pickup fuel tank such engine will quit flying inverted however fuel tank nearly full difficult kill engine burn off some fuel during test flights before attempting stop Once aircraft trimmed properly will rock-stable launch groove around course like rails average flier follows racing tips have mentioned builds Platy helminthes suggested specifications will guarantee flier would very competitive WILLI circuit information concerning WILLI racing circuit write call James Gilgenbach Rt 5 Nelson Road Fond du Lac WI 54934 414 921-7455 38 Model Aviation Left You can see view wood parts ready covering required number parts model small Above fuselage built upside down overthe plan balsa triangular stock extends past Lite Ply sides shown PROTEcT YOUR RIGHT TO FLY Safe Flying No Accident Pin front rear top portions fuselage down onto plan glue fuselage sides top rear portIon step text details important points Note installation rear wing holddown plate elevator servo mounts fuselage doublers between F2 F3
Edition: Model Aviation - 1985/01
Page Numbers: 32, 33, 34, 35, 36, 37, 38
AA PYLON RACING using WILLI Wisconsin-Illinois rules has proven interesting aspect aero modeling hobby reasons however some obvi ous ones Friendly competition racers suc cess dependent upon well does against fellow contestants five rounds heat assignment system used wherein no individual competitor has continually race against known hot dogs circuit though individual wants win real en joyment due friendly competitive spirit WILLI contestants Lack sophisticated equipment rules required conduct contest stopwatch flag three pylon poles starting line caller con testant optional three pylon judges starter Fellow contestants often handle lap counting pylon judging out adversely affecting integrity contest 32 Model Aviation model received Its name means fiat worm friendly competitor said airplane looked like worm viewed under microscope college addl tion identification wing numbers help orientation going around pylons Everyone tries RC Pylon Racing tells us gets bloodand want An easy way get started class model built has done well WILLI races rules bit different AMAA Pylon text has lot good advice about make small models flag signal-from starter point objective make 10 laps around pylons cutting finish ahead other racers Simple design parameters air craft wing must constant chord minimum area 200 sq minimum thickness /8 fuselage must least 2Y2 high including wing thickness must have minimum cross-sectional area 6 sq both dimensions occurring between wing leading trailing edges over weight tolerance less fuel 20 32 oz engines used stock 049 051 Cox TDs no modifications allowed other lapping piston crank Any kind needle valve assembly may used fuel normally 25% nitro supplied hosting club No fuel pressurization allowed Regardless what anyone may tell smooth con sistent runs can easily attained Cox TD engines fuel pressurization No flying wings pod-and-boom air craft allowed means remotely stopping engine required Winning strategy Dont get mistaken notion WILLI circuit com prised cream-puff rules neutralize contestant ingenuity given day techniques quest consistently win regardless racing Through experimentation have reached following conclusions Cox TD engine must run reliably full po wer can achieved prop erly lapping engine correctly mounting engine fuel tank rigidity fuselage also very impor tant avoid vibration easy way lap-in piston cyl inder use old Cox Babe Bee crankcase assembly electric starter First closely inspect piston cylinder loose metal particles burrs gouges scratches Remove loose particles burrs gouges scratches serious get new piston cylinder assembly Second using rod-setting tool snug up rod piston socket elimi nate end play careful however tighten too much rod should still freely pivot side side free ly rotate piston Third add light oil rod crank pin hole piston ball joint install piston cylinder onto old Babe Bee other Cox 049105 1 crankcase has approximately A2 removed portion cylinder mounts will allow piston travel above its normal top limit lap ping purposes Fourth apply automotive polishing Upon notification starter contestant has 90 seconds start engine get starting line contestant hand launches plane after racer has act together can beat pants off youre pre pared Throughout years have tried different aircraft designs racing compound cylinder piston bottom its stroke Crank over assembly hand work com pound Next turn over engine model aerodynamically very clean exposed hardware consists engine DuBro switch elevator horn tenna trailIng out back Though thIs version desIgn has conventIonal tall surfaces author prefers T-tall configuration though T-tail susceptible damage happen make bad landing model has much success WILLI circuit January1985 33 really perform about five seconds electric starter Fifth remove piston cylinder assembly clean thoroughly soap water careful get water piston/rod ball joint Reassemble piston cylinder push piston /32 above top dead center piston should stick place assembly held vertical posi tion however should fall out given slight tap finger assembly too tight relap assembly too loose its too late anything about test run assembly anyhow Sixth reassemble lapped piston rod TD crankcase oiling parts thoroughly Seventh mount engine test stand run rich setting 20000 rpm about 2 mm prop should used test running Master Air Screw MAS 51A-4 cut down 4% dia balanced Let engine cool about 2 mm restart run another 2 mm 22000 rpm Let engine cool another 2 mm Restart engine run 20 mm alternating between 20000 rpm 23000 rpm 2 mm Install MAS 51A-4 cut down 4% dia balanced run engine prop should used racing Maximum rpm prop should range 21000 22000 rpm order engine competitive must go contest prepared worst Make sure starting equip ment radio equipment A-l shape fully charged Check glow plug performance comparison new plug rpm drops 250 dont use old plug backup airplane absolute neces sity plan competitive through out season drive hundreds miles race sit watch everyone else having fun because plane damaged during test flights log should kept engines equipment order document ef fects changes made Always use same test prop monitoring performance Test flights absolutely essential ensure proper engine run trim out aircraft aircraft must simple clean 34 Model Aviation Side-mounting allows consistent fuel draw because centerlines venturi fuel tank match up Running inc uei lines through firewall mount produces clean frontal profile Note use 5-40 socket head cap screw mounting propeller Left isa collection airborne hardware required model short base-loaded antenna allows enough range doesnt produce drag full-length Right well-organized neat radio installation assures flawless performance flight after fiight Left Make parts before beginning assembly actual building time can reduced less 20 hours Above Au Lite Ply parts can made 1/8 sheet sized 12 xl 6 Make sure Lite Ply sheet use doesnt have large warps LIIULII WUOKI b Hank tIatHE PLOT CRCKENS SEARCi4 -TNt CLOUD V -ON ThE GOUNO -THINK 0 K K LLER OFF TO PLOT 5P -YEAH SHANGHAI P PATrEPNS 0NTI STMNGI THATS PLUSTIIAT WAS THEIR NOM ThISHAWK NOW RANGES BUSYMN 7-WELL FROM TO X PLUS 20 30 RADIUS PLUSBASE ASTUElOOM LES OUT 0WHEN F Nb TIO5E WHEPE AND FIRST Aw DO MORE BUTGIRLS LL BE BUSY ELSETHEM ON THE GROUN BACK HOME 70 GTRIP-TOO- WORK NGWTH AT V-y TOw ME OFF THAT BLONDEYOU ANO WOO N WANTS NONEOFMEV__ALL OPTHEM pSHE E AMADO *THEc WAYOP~ THRU GOLD N ROD FROM SULLIVAN W TO ALERON COX TO 049 OR 051 ON FOURMOST I/2A MOUNT F-i I/4PLY MOUNT PLATE 1~ 438 TRIANGLE S1OCKALLCORNERS 1/32 PLY REINF AS HOLDOOWN PLATE K F-3 I/4PLY FORMER 1/8 LITE PLY SPAR JOINERATC/S I/8SIG LITE PLY SIDES TOPArD BOTTOM DUBRO 108 QUIK UNK DUBRO 107 HORN 1/8 LITE PLY STAB AND ELEVAlOR /4 BALSA TRIM TAB ON SOFT WIRE 3/8 TRIANGLE LE FIN /4 SOLID BLOCK FOR HOLDDcMN SCREW NOTCH FOR RIBS TIP PLATES 3/8X V2 BALSA TRAILING EDGE 1/16 SHEET LE COVER TOPANDBQITOM RIBS SHOW AS BALSA BUT PLAN CALLS FOR LITE PLY HALF LAP NOTCHES I/B LITE PLV FRONT HOLD DOWN TAKES I/eLITE PLY TAB UNDER LE 1/4 BALSAWING SADDLE FROM 2T0 3 ONLY AD I/4PLY FORMER Left Build wing straightoverthe plan Author recommends use athick cyanoacrylate glue Notches leading andtrailing edges help alignment Right Use masking tape mark saw lines sweepback sure sawing perpendicular bottom Left Add 1/16 balsa sheeting center wing Note sheeting inset between center ribs top Right see cutout wing sheeting clearing elevator servo tongue holding wing frontto fuselage strong light stable predictable have thus far gone through least dozen different designs trying achieve ultimate WILLI AA Pylon Racer Platyhelminthes series has proven successful allowing accu mulate WILLI points 1983 racing season aircraft has above qualities quickbuilding inexpensive Construction first step ensure short successful building session cut out rough-sand parts done lightly contact-cementing extra set plans onto wood sawing out component ribs should cut groups five ensure uniformity save time Also cut out aileron install aileron torque rod tube construction straightforward should able complete entire assembly approx imately 20 hours Start taping set plans building board taping waxed paper over plans wing should constructed first Position tape trailing edge flat plans Assemble ribs trail ing edge Insert leading edge ribs align plans Glue ribs leading trailing edges recommend using thick cyanoacrylate CyA Position glue top main spar Remove wing plans Turn over install glue bottom main spar Add bottom leading edge sheeting trim sand leading edge Remove wing plans add top leading edge sheeting trim Glue wing tips Mark saw lines masking tape saw out center tapered portion Glue wing halves together Shim leading edges trailing edges same height building board before gluing will have unwanted anhedral dihedral Install tongue front wing Add main spar reinforcement piece sheeting center section plywood top plate onto trail ing edge Sand entire wing finish size careful maintain minimum wing thickness 7/ main spars wing now ready servo installation covering Fuselage Install blind nuts Fl drill fuel line holes Fourmost mount Fl Pin front rear top portions fuselage down plans glue fuselage sides top rear portion Locate glue F4 triangular stock between top sides Glue F2 front top portion fuselage glue sides F2 lace glued Position Fl using squar ing block glue front top ly Glue triangular stock top between Fl F2 36 Model Aviation Above Aftersawing thewing halves recheckto make surethe saw lines straight Right Glue wing halvestogetherwith leading trailing edges atthe same height off building board Use whatever scraps have laying around shim necessary Steel squaring blocks used aligning fuselage sides firewall formers Firewall misalignment can disastrous BOTTOM VIEW V5 20 ftftI rF~7IP4 /7/ I~iii-ii- — ______________ // / TOP SWEETING OMITTED U CLA BITT \\IAiV\ I I / [BX.BETEBEE CONOTBOCTIOS CR21 BSSP B1 Ir-rm ENB B BBSSEA -BECBMM20 UA EBOBOBS NOE AD IIB EBSE0000 ION BE ESO KLI MAIM STAB BEIBTOBOEMENT PIECE IS OBEETISO OMITTED FOB CLABI BILL O MATERIALS B S-4A CO BOO IOCAP BOBEU 1131 SM BALSA TMSLISO BOOR 4BRSEIOCB I4I2oBBSIr LI TB-PLY PLAITS COBb BOB 4-40 BLEW MIT IDUBAO ABS AILEBOM BALL LBD AllFD ARP UOII1A LIMITS52031 G EE 7 BE B SIDE SHEETIBS OBMTTED WRAP BOOS WICOPPEB / WISE ABS SOLDER/34 OSETOEB OS SPLICE ?KE WITB LEBOTO OF IOPT ORAL EBPEBBASE PLATYHELMINTHES L[ ORSISBEB BOBAWN BY 122A BCTBACED N IRKED BY JAMES AILBEBBACAPYLON MACEM BIOS GLEASON 0 2555B7 5 Full-Size Plans Available. See Page 180 BA LSA SCRAP BARJN0SWB Glue sides Fl triangular stock Position glue F3 sides Position glue bottom triangular stock add rear bottom portion Remove assembly plans Fuel proof fuel tank radio com partments including inside portion front bottom Glue front bot tom portion Install Fourmost mount sand fuselage shape Assembly wing can now fitted fuselage Position wing wing saddle shape saddle wing leading trailing edges parallel top fuselage both side side front back ie 00 incidence Install rear wing hold-down plate Align wing wing tips equidistant square fuselage centerline within /16 Clamp wing position spot-drill through wing rear wing hold-down plate fuselage Remove wing drill through hold-down plate add blind nut Now align install front wing plate wish build aircraft T-tail vertical stabilizer should added point radio engine fuel tank hardware should now installed ensure no binding interference exists Disassemble parts finish-sand entire aircraft recommendation covering finishing use iron-on covering throughout allows easy repair after unfortunate acci dents occur racing saves time finishing Super MonoKote hinges have also worked out well horizon tal stabilizer After covering reassemble com ponents Position aircraft building board fuselage top par allel building board front back side side 6-in ruler meas ure up building board leading trailing edges check warps Set up wing absolutely true A-in washout trailing edge Use heat gun twist get right Now check balance point TrImming flying AA Pylon Racers critical trim adjustment made rudder trim tab ver tical stabilizer slightly misaligned aircraft will screw ground right after launch especially stabili zer causes left-hand turn therefore sug gest vertical stabilizer aligned extreme care follow first flight procedure listed below 1 Select day wind tween 5 15 mph 2 Range-check radio make sure controls move freely 3 Test run engine set run just tad rich 4 Set rudder trim tab / right back edge 5 Trim elevator level down 6 Have assistant launch plane straight wind giving fairly strong heave keeping wing straight level 7 Avoid giving much up-elevator after launch until good flying speed has reached 8 Adjust aileron elevator level flight very slight left turn 9 Observe plane corners around pylon turns nose-high rudder trim tab will have adjusted left slightly turns nose-low tab will have adjusted right slightly After rudder adjustment will necessary retrim aileron 10 The aircraft set up fixed pickup fuel tank such engine will quit flying inverted however fuel tank nearly full difficult kill engine burn off some fuel during test flights before attempting stop Once aircraft trimmed properly will rock-stable launch groove around course like rails average flier follows racing tips have mentioned builds Platy helminthes suggested specifications will guarantee flier would very competitive WILLI circuit information concerning WILLI racing circuit write call James Gilgenbach Rt 5 Nelson Road Fond du Lac WI 54934 414 921-7455 38 Model Aviation Left You can see view wood parts ready covering required number parts model small Above fuselage built upside down overthe plan balsa triangular stock extends past Lite Ply sides shown PROTEcT YOUR RIGHT TO FLY Safe Flying No Accident Pin front rear top portions fuselage down onto plan glue fuselage sides top rear portIon step text details important points Note installation rear wing holddown plate elevator servo mounts fuselage doublers between F2 F3
Edition: Model Aviation - 1985/01
Page Numbers: 32, 33, 34, 35, 36, 37, 38
AA PYLON RACING using WILLI Wisconsin-Illinois rules has proven interesting aspect aero modeling hobby reasons however some obvi ous ones Friendly competition racers suc cess dependent upon well does against fellow contestants five rounds heat assignment system used wherein no individual competitor has continually race against known hot dogs circuit though individual wants win real en joyment due friendly competitive spirit WILLI contestants Lack sophisticated equipment rules required conduct contest stopwatch flag three pylon poles starting line caller con testant optional three pylon judges starter Fellow contestants often handle lap counting pylon judging out adversely affecting integrity contest 32 Model Aviation model received Its name means fiat worm friendly competitor said airplane looked like worm viewed under microscope college addl tion identification wing numbers help orientation going around pylons Everyone tries RC Pylon Racing tells us gets bloodand want An easy way get started class model built has done well WILLI races rules bit different AMAA Pylon text has lot good advice about make small models flag signal-from starter point objective make 10 laps around pylons cutting finish ahead other racers Simple design parameters air craft wing must constant chord minimum area 200 sq minimum thickness /8 fuselage must least 2Y2 high including wing thickness must have minimum cross-sectional area 6 sq both dimensions occurring between wing leading trailing edges over weight tolerance less fuel 20 32 oz engines used stock 049 051 Cox TDs no modifications allowed other lapping piston crank Any kind needle valve assembly may used fuel normally 25% nitro supplied hosting club No fuel pressurization allowed Regardless what anyone may tell smooth con sistent runs can easily attained Cox TD engines fuel pressurization No flying wings pod-and-boom air craft allowed means remotely stopping engine required Winning strategy Dont get mistaken notion WILLI circuit com prised cream-puff rules neutralize contestant ingenuity given day techniques quest consistently win regardless racing Through experimentation have reached following conclusions Cox TD engine must run reliably full po wer can achieved prop erly lapping engine correctly mounting engine fuel tank rigidity fuselage also very impor tant avoid vibration easy way lap-in piston cyl inder use old Cox Babe Bee crankcase assembly electric starter First closely inspect piston cylinder loose metal particles burrs gouges scratches Remove loose particles burrs gouges scratches serious get new piston cylinder assembly Second using rod-setting tool snug up rod piston socket elimi nate end play careful however tighten too much rod should still freely pivot side side free ly rotate piston Third add light oil rod crank pin hole piston ball joint install piston cylinder onto old Babe Bee other Cox 049105 1 crankcase has approximately A2 removed portion cylinder mounts will allow piston travel above its normal top limit lap ping purposes Fourth apply automotive polishing Upon notification starter contestant has 90 seconds start engine get starting line contestant hand launches plane after racer has act together can beat pants off youre pre pared Throughout years have tried different aircraft designs racing compound cylinder piston bottom its stroke Crank over assembly hand work com pound Next turn over engine model aerodynamically very clean exposed hardware consists engine DuBro switch elevator horn tenna trailIng out back Though thIs version desIgn has conventIonal tall surfaces author prefers T-tall configuration though T-tail susceptible damage happen make bad landing model has much success WILLI circuit January1985 33 really perform about five seconds electric starter Fifth remove piston cylinder assembly clean thoroughly soap water careful get water piston/rod ball joint Reassemble piston cylinder push piston /32 above top dead center piston should stick place assembly held vertical posi tion however should fall out given slight tap finger assembly too tight relap assembly too loose its too late anything about test run assembly anyhow Sixth reassemble lapped piston rod TD crankcase oiling parts thoroughly Seventh mount engine test stand run rich setting 20000 rpm about 2 mm prop should used test running Master Air Screw MAS 51A-4 cut down 4% dia balanced Let engine cool about 2 mm restart run another 2 mm 22000 rpm Let engine cool another 2 mm Restart engine run 20 mm alternating between 20000 rpm 23000 rpm 2 mm Install MAS 51A-4 cut down 4% dia balanced run engine prop should used racing Maximum rpm prop should range 21000 22000 rpm order engine competitive must go contest prepared worst Make sure starting equip ment radio equipment A-l shape fully charged Check glow plug performance comparison new plug rpm drops 250 dont use old plug backup airplane absolute neces sity plan competitive through out season drive hundreds miles race sit watch everyone else having fun because plane damaged during test flights log should kept engines equipment order document ef fects changes made Always use same test prop monitoring performance Test flights absolutely essential ensure proper engine run trim out aircraft aircraft must simple clean 34 Model Aviation Side-mounting allows consistent fuel draw because centerlines venturi fuel tank match up Running inc uei lines through firewall mount produces clean frontal profile Note use 5-40 socket head cap screw mounting propeller Left isa collection airborne hardware required model short base-loaded antenna allows enough range doesnt produce drag full-length Right well-organized neat radio installation assures flawless performance flight after fiight Left Make parts before beginning assembly actual building time can reduced less 20 hours Above Au Lite Ply parts can made 1/8 sheet sized 12 xl 6 Make sure Lite Ply sheet use doesnt have large warps LIIULII WUOKI b Hank tIatHE PLOT CRCKENS SEARCi4 -TNt CLOUD V -ON ThE GOUNO -THINK 0 K K LLER OFF TO PLOT 5P -YEAH SHANGHAI P PATrEPNS 0NTI STMNGI THATS PLUSTIIAT WAS THEIR NOM ThISHAWK NOW RANGES BUSYMN 7-WELL FROM TO X PLUS 20 30 RADIUS PLUSBASE ASTUElOOM LES OUT 0WHEN F Nb TIO5E WHEPE AND FIRST Aw DO MORE BUTGIRLS LL BE BUSY ELSETHEM ON THE GROUN BACK HOME 70 GTRIP-TOO- WORK NGWTH AT V-y TOw ME OFF THAT BLONDEYOU ANO WOO N WANTS NONEOFMEV__ALL OPTHEM pSHE E AMADO *THEc WAYOP~ THRU GOLD N ROD FROM SULLIVAN W TO ALERON COX TO 049 OR 051 ON FOURMOST I/2A MOUNT F-i I/4PLY MOUNT PLATE 1~ 438 TRIANGLE S1OCKALLCORNERS 1/32 PLY REINF AS HOLDOOWN PLATE K F-3 I/4PLY FORMER 1/8 LITE PLY SPAR JOINERATC/S I/8SIG LITE PLY SIDES TOPArD BOTTOM DUBRO 108 QUIK UNK DUBRO 107 HORN 1/8 LITE PLY STAB AND ELEVAlOR /4 BALSA TRIM TAB ON SOFT WIRE 3/8 TRIANGLE LE FIN /4 SOLID BLOCK FOR HOLDDcMN SCREW NOTCH FOR RIBS TIP PLATES 3/8X V2 BALSA TRAILING EDGE 1/16 SHEET LE COVER TOPANDBQITOM RIBS SHOW AS BALSA BUT PLAN CALLS FOR LITE PLY HALF LAP NOTCHES I/B LITE PLV FRONT HOLD DOWN TAKES I/eLITE PLY TAB UNDER LE 1/4 BALSAWING SADDLE FROM 2T0 3 ONLY AD I/4PLY FORMER Left Build wing straightoverthe plan Author recommends use athick cyanoacrylate glue Notches leading andtrailing edges help alignment Right Use masking tape mark saw lines sweepback sure sawing perpendicular bottom Left Add 1/16 balsa sheeting center wing Note sheeting inset between center ribs top Right see cutout wing sheeting clearing elevator servo tongue holding wing frontto fuselage strong light stable predictable have thus far gone through least dozen different designs trying achieve ultimate WILLI AA Pylon Racer Platyhelminthes series has proven successful allowing accu mulate WILLI points 1983 racing season aircraft has above qualities quickbuilding inexpensive Construction first step ensure short successful building session cut out rough-sand parts done lightly contact-cementing extra set plans onto wood sawing out component ribs should cut groups five ensure uniformity save time Also cut out aileron install aileron torque rod tube construction straightforward should able complete entire assembly approx imately 20 hours Start taping set plans building board taping waxed paper over plans wing should constructed first Position tape trailing edge flat plans Assemble ribs trail ing edge Insert leading edge ribs align plans Glue ribs leading trailing edges recommend using thick cyanoacrylate CyA Position glue top main spar Remove wing plans Turn over install glue bottom main spar Add bottom leading edge sheeting trim sand leading edge Remove wing plans add top leading edge sheeting trim Glue wing tips Mark saw lines masking tape saw out center tapered portion Glue wing halves together Shim leading edges trailing edges same height building board before gluing will have unwanted anhedral dihedral Install tongue front wing Add main spar reinforcement piece sheeting center section plywood top plate onto trail ing edge Sand entire wing finish size careful maintain minimum wing thickness 7/ main spars wing now ready servo installation covering Fuselage Install blind nuts Fl drill fuel line holes Fourmost mount Fl Pin front rear top portions fuselage down plans glue fuselage sides top rear portion Locate glue F4 triangular stock between top sides Glue F2 front top portion fuselage glue sides F2 lace glued Position Fl using squar ing block glue front top ly Glue triangular stock top between Fl F2 36 Model Aviation Above Aftersawing thewing halves recheckto make surethe saw lines straight Right Glue wing halvestogetherwith leading trailing edges atthe same height off building board Use whatever scraps have laying around shim necessary Steel squaring blocks used aligning fuselage sides firewall formers Firewall misalignment can disastrous BOTTOM VIEW V5 20 ftftI rF~7IP4 /7/ I~iii-ii- — ______________ // / TOP SWEETING OMITTED U CLA BITT \\IAiV\ I I / [BX.BETEBEE CONOTBOCTIOS CR21 BSSP B1 Ir-rm ENB B BBSSEA -BECBMM20 UA EBOBOBS NOE AD IIB EBSE0000 ION BE ESO KLI MAIM STAB BEIBTOBOEMENT PIECE IS OBEETISO OMITTED FOB CLABI BILL O MATERIALS B S-4A CO BOO IOCAP BOBEU 1131 SM BALSA TMSLISO BOOR 4BRSEIOCB I4I2oBBSIr LI TB-PLY PLAITS COBb BOB 4-40 BLEW MIT IDUBAO ABS AILEBOM BALL LBD AllFD ARP UOII1A LIMITS52031 G EE 7 BE B SIDE SHEETIBS OBMTTED WRAP BOOS WICOPPEB / WISE ABS SOLDER/34 OSETOEB OS SPLICE ?KE WITB LEBOTO OF IOPT ORAL EBPEBBASE PLATYHELMINTHES L[ ORSISBEB BOBAWN BY 122A BCTBACED N IRKED BY JAMES AILBEBBACAPYLON MACEM BIOS GLEASON 0 2555B7 5 Full-Size Plans Available. See Page 180 BA LSA SCRAP BARJN0SWB Glue sides Fl triangular stock Position glue F3 sides Position glue bottom triangular stock add rear bottom portion Remove assembly plans Fuel proof fuel tank radio com partments including inside portion front bottom Glue front bot tom portion Install Fourmost mount sand fuselage shape Assembly wing can now fitted fuselage Position wing wing saddle shape saddle wing leading trailing edges parallel top fuselage both side side front back ie 00 incidence Install rear wing hold-down plate Align wing wing tips equidistant square fuselage centerline within /16 Clamp wing position spot-drill through wing rear wing hold-down plate fuselage Remove wing drill through hold-down plate add blind nut Now align install front wing plate wish build aircraft T-tail vertical stabilizer should added point radio engine fuel tank hardware should now installed ensure no binding interference exists Disassemble parts finish-sand entire aircraft recommendation covering finishing use iron-on covering throughout allows easy repair after unfortunate acci dents occur racing saves time finishing Super MonoKote hinges have also worked out well horizon tal stabilizer After covering reassemble com ponents Position aircraft building board fuselage top par allel building board front back side side 6-in ruler meas ure up building board leading trailing edges check warps Set up wing absolutely true A-in washout trailing edge Use heat gun twist get right Now check balance point TrImming flying AA Pylon Racers critical trim adjustment made rudder trim tab ver tical stabilizer slightly misaligned aircraft will screw ground right after launch especially stabili zer causes left-hand turn therefore sug gest vertical stabilizer aligned extreme care follow first flight procedure listed below 1 Select day wind tween 5 15 mph 2 Range-check radio make sure controls move freely 3 Test run engine set run just tad rich 4 Set rudder trim tab / right back edge 5 Trim elevator level down 6 Have assistant launch plane straight wind giving fairly strong heave keeping wing straight level 7 Avoid giving much up-elevator after launch until good flying speed has reached 8 Adjust aileron elevator level flight very slight left turn 9 Observe plane corners around pylon turns nose-high rudder trim tab will have adjusted left slightly turns nose-low tab will have adjusted right slightly After rudder adjustment will necessary retrim aileron 10 The aircraft set up fixed pickup fuel tank such engine will quit flying inverted however fuel tank nearly full difficult kill engine burn off some fuel during test flights before attempting stop Once aircraft trimmed properly will rock-stable launch groove around course like rails average flier follows racing tips have mentioned builds Platy helminthes suggested specifications will guarantee flier would very competitive WILLI circuit information concerning WILLI racing circuit write call James Gilgenbach Rt 5 Nelson Road Fond du Lac WI 54934 414 921-7455 38 Model Aviation Left You can see view wood parts ready covering required number parts model small Above fuselage built upside down overthe plan balsa triangular stock extends past Lite Ply sides shown PROTEcT YOUR RIGHT TO FLY Safe Flying No Accident Pin front rear top portions fuselage down onto plan glue fuselage sides top rear portIon step text details important points Note installation rear wing holddown plate elevator servo mounts fuselage doublers between F2 F3
Edition: Model Aviation - 1985/01
Page Numbers: 32, 33, 34, 35, 36, 37, 38
AA PYLON RACING using WILLI Wisconsin-Illinois rules has proven interesting aspect aero modeling hobby reasons however some obvi ous ones Friendly competition racers suc cess dependent upon well does against fellow contestants five rounds heat assignment system used wherein no individual competitor has continually race against known hot dogs circuit though individual wants win real en joyment due friendly competitive spirit WILLI contestants Lack sophisticated equipment rules required conduct contest stopwatch flag three pylon poles starting line caller con testant optional three pylon judges starter Fellow contestants often handle lap counting pylon judging out adversely affecting integrity contest 32 Model Aviation model received Its name means fiat worm friendly competitor said airplane looked like worm viewed under microscope college addl tion identification wing numbers help orientation going around pylons Everyone tries RC Pylon Racing tells us gets bloodand want An easy way get started class model built has done well WILLI races rules bit different AMAA Pylon text has lot good advice about make small models flag signal-from starter point objective make 10 laps around pylons cutting finish ahead other racers Simple design parameters air craft wing must constant chord minimum area 200 sq minimum thickness /8 fuselage must least 2Y2 high including wing thickness must have minimum cross-sectional area 6 sq both dimensions occurring between wing leading trailing edges over weight tolerance less fuel 20 32 oz engines used stock 049 051 Cox TDs no modifications allowed other lapping piston crank Any kind needle valve assembly may used fuel normally 25% nitro supplied hosting club No fuel pressurization allowed Regardless what anyone may tell smooth con sistent runs can easily attained Cox TD engines fuel pressurization No flying wings pod-and-boom air craft allowed means remotely stopping engine required Winning strategy Dont get mistaken notion WILLI circuit com prised cream-puff rules neutralize contestant ingenuity given day techniques quest consistently win regardless racing Through experimentation have reached following conclusions Cox TD engine must run reliably full po wer can achieved prop erly lapping engine correctly mounting engine fuel tank rigidity fuselage also very impor tant avoid vibration easy way lap-in piston cyl inder use old Cox Babe Bee crankcase assembly electric starter First closely inspect piston cylinder loose metal particles burrs gouges scratches Remove loose particles burrs gouges scratches serious get new piston cylinder assembly Second using rod-setting tool snug up rod piston socket elimi nate end play careful however tighten too much rod should still freely pivot side side free ly rotate piston Third add light oil rod crank pin hole piston ball joint install piston cylinder onto old Babe Bee other Cox 049105 1 crankcase has approximately A2 removed portion cylinder mounts will allow piston travel above its normal top limit lap ping purposes Fourth apply automotive polishing Upon notification starter contestant has 90 seconds start engine get starting line contestant hand launches plane after racer has act together can beat pants off youre pre pared Throughout years have tried different aircraft designs racing compound cylinder piston bottom its stroke Crank over assembly hand work com pound Next turn over engine model aerodynamically very clean exposed hardware consists engine DuBro switch elevator horn tenna trailIng out back Though thIs version desIgn has conventIonal tall surfaces author prefers T-tall configuration though T-tail susceptible damage happen make bad landing model has much success WILLI circuit January1985 33 really perform about five seconds electric starter Fifth remove piston cylinder assembly clean thoroughly soap water careful get water piston/rod ball joint Reassemble piston cylinder push piston /32 above top dead center piston should stick place assembly held vertical posi tion however should fall out given slight tap finger assembly too tight relap assembly too loose its too late anything about test run assembly anyhow Sixth reassemble lapped piston rod TD crankcase oiling parts thoroughly Seventh mount engine test stand run rich setting 20000 rpm about 2 mm prop should used test running Master Air Screw MAS 51A-4 cut down 4% dia balanced Let engine cool about 2 mm restart run another 2 mm 22000 rpm Let engine cool another 2 mm Restart engine run 20 mm alternating between 20000 rpm 23000 rpm 2 mm Install MAS 51A-4 cut down 4% dia balanced run engine prop should used racing Maximum rpm prop should range 21000 22000 rpm order engine competitive must go contest prepared worst Make sure starting equip ment radio equipment A-l shape fully charged Check glow plug performance comparison new plug rpm drops 250 dont use old plug backup airplane absolute neces sity plan competitive through out season drive hundreds miles race sit watch everyone else having fun because plane damaged during test flights log should kept engines equipment order document ef fects changes made Always use same test prop monitoring performance Test flights absolutely essential ensure proper engine run trim out aircraft aircraft must simple clean 34 Model Aviation Side-mounting allows consistent fuel draw because centerlines venturi fuel tank match up Running inc uei lines through firewall mount produces clean frontal profile Note use 5-40 socket head cap screw mounting propeller Left isa collection airborne hardware required model short base-loaded antenna allows enough range doesnt produce drag full-length Right well-organized neat radio installation assures flawless performance flight after fiight Left Make parts before beginning assembly actual building time can reduced less 20 hours Above Au Lite Ply parts can made 1/8 sheet sized 12 xl 6 Make sure Lite Ply sheet use doesnt have large warps LIIULII WUOKI b Hank tIatHE PLOT CRCKENS SEARCi4 -TNt CLOUD V -ON ThE GOUNO -THINK 0 K K LLER OFF TO PLOT 5P -YEAH SHANGHAI P PATrEPNS 0NTI STMNGI THATS PLUSTIIAT WAS THEIR NOM ThISHAWK NOW RANGES BUSYMN 7-WELL FROM TO X PLUS 20 30 RADIUS PLUSBASE ASTUElOOM LES OUT 0WHEN F Nb TIO5E WHEPE AND FIRST Aw DO MORE BUTGIRLS LL BE BUSY ELSETHEM ON THE GROUN BACK HOME 70 GTRIP-TOO- WORK NGWTH AT V-y TOw ME OFF THAT BLONDEYOU ANO WOO N WANTS NONEOFMEV__ALL OPTHEM pSHE E AMADO *THEc WAYOP~ THRU GOLD N ROD FROM SULLIVAN W TO ALERON COX TO 049 OR 051 ON FOURMOST I/2A MOUNT F-i I/4PLY MOUNT PLATE 1~ 438 TRIANGLE S1OCKALLCORNERS 1/32 PLY REINF AS HOLDOOWN PLATE K F-3 I/4PLY FORMER 1/8 LITE PLY SPAR JOINERATC/S I/8SIG LITE PLY SIDES TOPArD BOTTOM DUBRO 108 QUIK UNK DUBRO 107 HORN 1/8 LITE PLY STAB AND ELEVAlOR /4 BALSA TRIM TAB ON SOFT WIRE 3/8 TRIANGLE LE FIN /4 SOLID BLOCK FOR HOLDDcMN SCREW NOTCH FOR RIBS TIP PLATES 3/8X V2 BALSA TRAILING EDGE 1/16 SHEET LE COVER TOPANDBQITOM RIBS SHOW AS BALSA BUT PLAN CALLS FOR LITE PLY HALF LAP NOTCHES I/B LITE PLV FRONT HOLD DOWN TAKES I/eLITE PLY TAB UNDER LE 1/4 BALSAWING SADDLE FROM 2T0 3 ONLY AD I/4PLY FORMER Left Build wing straightoverthe plan Author recommends use athick cyanoacrylate glue Notches leading andtrailing edges help alignment Right Use masking tape mark saw lines sweepback sure sawing perpendicular bottom Left Add 1/16 balsa sheeting center wing Note sheeting inset between center ribs top Right see cutout wing sheeting clearing elevator servo tongue holding wing frontto fuselage strong light stable predictable have thus far gone through least dozen different designs trying achieve ultimate WILLI AA Pylon Racer Platyhelminthes series has proven successful allowing accu mulate WILLI points 1983 racing season aircraft has above qualities quickbuilding inexpensive Construction first step ensure short successful building session cut out rough-sand parts done lightly contact-cementing extra set plans onto wood sawing out component ribs should cut groups five ensure uniformity save time Also cut out aileron install aileron torque rod tube construction straightforward should able complete entire assembly approx imately 20 hours Start taping set plans building board taping waxed paper over plans wing should constructed first Position tape trailing edge flat plans Assemble ribs trail ing edge Insert leading edge ribs align plans Glue ribs leading trailing edges recommend using thick cyanoacrylate CyA Position glue top main spar Remove wing plans Turn over install glue bottom main spar Add bottom leading edge sheeting trim sand leading edge Remove wing plans add top leading edge sheeting trim Glue wing tips Mark saw lines masking tape saw out center tapered portion Glue wing halves together Shim leading edges trailing edges same height building board before gluing will have unwanted anhedral dihedral Install tongue front wing Add main spar reinforcement piece sheeting center section plywood top plate onto trail ing edge Sand entire wing finish size careful maintain minimum wing thickness 7/ main spars wing now ready servo installation covering Fuselage Install blind nuts Fl drill fuel line holes Fourmost mount Fl Pin front rear top portions fuselage down plans glue fuselage sides top rear portion Locate glue F4 triangular stock between top sides Glue F2 front top portion fuselage glue sides F2 lace glued Position Fl using squar ing block glue front top ly Glue triangular stock top between Fl F2 36 Model Aviation Above Aftersawing thewing halves recheckto make surethe saw lines straight Right Glue wing halvestogetherwith leading trailing edges atthe same height off building board Use whatever scraps have laying around shim necessary Steel squaring blocks used aligning fuselage sides firewall formers Firewall misalignment can disastrous BOTTOM VIEW V5 20 ftftI rF~7IP4 /7/ I~iii-ii- — ______________ // / TOP SWEETING OMITTED U CLA BITT \\IAiV\ I I / [BX.BETEBEE CONOTBOCTIOS CR21 BSSP B1 Ir-rm ENB B BBSSEA -BECBMM20 UA EBOBOBS NOE AD IIB EBSE0000 ION BE ESO KLI MAIM STAB BEIBTOBOEMENT PIECE IS OBEETISO OMITTED FOB CLABI BILL O MATERIALS B S-4A CO BOO IOCAP BOBEU 1131 SM BALSA TMSLISO BOOR 4BRSEIOCB I4I2oBBSIr LI TB-PLY PLAITS COBb BOB 4-40 BLEW MIT IDUBAO ABS AILEBOM BALL LBD AllFD ARP UOII1A LIMITS52031 G EE 7 BE B SIDE SHEETIBS OBMTTED WRAP BOOS WICOPPEB / WISE ABS SOLDER/34 OSETOEB OS SPLICE ?KE WITB LEBOTO OF IOPT ORAL EBPEBBASE PLATYHELMINTHES L[ ORSISBEB BOBAWN BY 122A BCTBACED N IRKED BY JAMES AILBEBBACAPYLON MACEM BIOS GLEASON 0 2555B7 5 Full-Size Plans Available. See Page 180 BA LSA SCRAP BARJN0SWB Glue sides Fl triangular stock Position glue F3 sides Position glue bottom triangular stock add rear bottom portion Remove assembly plans Fuel proof fuel tank radio com partments including inside portion front bottom Glue front bot tom portion Install Fourmost mount sand fuselage shape Assembly wing can now fitted fuselage Position wing wing saddle shape saddle wing leading trailing edges parallel top fuselage both side side front back ie 00 incidence Install rear wing hold-down plate Align wing wing tips equidistant square fuselage centerline within /16 Clamp wing position spot-drill through wing rear wing hold-down plate fuselage Remove wing drill through hold-down plate add blind nut Now align install front wing plate wish build aircraft T-tail vertical stabilizer should added point radio engine fuel tank hardware should now installed ensure no binding interference exists Disassemble parts finish-sand entire aircraft recommendation covering finishing use iron-on covering throughout allows easy repair after unfortunate acci dents occur racing saves time finishing Super MonoKote hinges have also worked out well horizon tal stabilizer After covering reassemble com ponents Position aircraft building board fuselage top par allel building board front back side side 6-in ruler meas ure up building board leading trailing edges check warps Set up wing absolutely true A-in washout trailing edge Use heat gun twist get right Now check balance point TrImming flying AA Pylon Racers critical trim adjustment made rudder trim tab ver tical stabilizer slightly misaligned aircraft will screw ground right after launch especially stabili zer causes left-hand turn therefore sug gest vertical stabilizer aligned extreme care follow first flight procedure listed below 1 Select day wind tween 5 15 mph 2 Range-check radio make sure controls move freely 3 Test run engine set run just tad rich 4 Set rudder trim tab / right back edge 5 Trim elevator level down 6 Have assistant launch plane straight wind giving fairly strong heave keeping wing straight level 7 Avoid giving much up-elevator after launch until good flying speed has reached 8 Adjust aileron elevator level flight very slight left turn 9 Observe plane corners around pylon turns nose-high rudder trim tab will have adjusted left slightly turns nose-low tab will have adjusted right slightly After rudder adjustment will necessary retrim aileron 10 The aircraft set up fixed pickup fuel tank such engine will quit flying inverted however fuel tank nearly full difficult kill engine burn off some fuel during test flights before attempting stop Once aircraft trimmed properly will rock-stable launch groove around course like rails average flier follows racing tips have mentioned builds Platy helminthes suggested specifications will guarantee flier would very competitive WILLI circuit information concerning WILLI racing circuit write call James Gilgenbach Rt 5 Nelson Road Fond du Lac WI 54934 414 921-7455 38 Model Aviation Left You can see view wood parts ready covering required number parts model small Above fuselage built upside down overthe plan balsa triangular stock extends past Lite Ply sides shown PROTEcT YOUR RIGHT TO FLY Safe Flying No Accident Pin front rear top portions fuselage down onto plan glue fuselage sides top rear portIon step text details important points Note installation rear wing holddown plate elevator servo mounts fuselage doublers between F2 F3
Edition: Model Aviation - 1985/01
Page Numbers: 32, 33, 34, 35, 36, 37, 38
AA PYLON RACING using WILLI Wisconsin-Illinois rules has proven interesting aspect aero modeling hobby reasons however some obvi ous ones Friendly competition racers suc cess dependent upon well does against fellow contestants five rounds heat assignment system used wherein no individual competitor has continually race against known hot dogs circuit though individual wants win real en joyment due friendly competitive spirit WILLI contestants Lack sophisticated equipment rules required conduct contest stopwatch flag three pylon poles starting line caller con testant optional three pylon judges starter Fellow contestants often handle lap counting pylon judging out adversely affecting integrity contest 32 Model Aviation model received Its name means fiat worm friendly competitor said airplane looked like worm viewed under microscope college addl tion identification wing numbers help orientation going around pylons Everyone tries RC Pylon Racing tells us gets bloodand want An easy way get started class model built has done well WILLI races rules bit different AMAA Pylon text has lot good advice about make small models flag signal-from starter point objective make 10 laps around pylons cutting finish ahead other racers Simple design parameters air craft wing must constant chord minimum area 200 sq minimum thickness /8 fuselage must least 2Y2 high including wing thickness must have minimum cross-sectional area 6 sq both dimensions occurring between wing leading trailing edges over weight tolerance less fuel 20 32 oz engines used stock 049 051 Cox TDs no modifications allowed other lapping piston crank Any kind needle valve assembly may used fuel normally 25% nitro supplied hosting club No fuel pressurization allowed Regardless what anyone may tell smooth con sistent runs can easily attained Cox TD engines fuel pressurization No flying wings pod-and-boom air craft allowed means remotely stopping engine required Winning strategy Dont get mistaken notion WILLI circuit com prised cream-puff rules neutralize contestant ingenuity given day techniques quest consistently win regardless racing Through experimentation have reached following conclusions Cox TD engine must run reliably full po wer can achieved prop erly lapping engine correctly mounting engine fuel tank rigidity fuselage also very impor tant avoid vibration easy way lap-in piston cyl inder use old Cox Babe Bee crankcase assembly electric starter First closely inspect piston cylinder loose metal particles burrs gouges scratches Remove loose particles burrs gouges scratches serious get new piston cylinder assembly Second using rod-setting tool snug up rod piston socket elimi nate end play careful however tighten too much rod should still freely pivot side side free ly rotate piston Third add light oil rod crank pin hole piston ball joint install piston cylinder onto old Babe Bee other Cox 049105 1 crankcase has approximately A2 removed portion cylinder mounts will allow piston travel above its normal top limit lap ping purposes Fourth apply automotive polishing Upon notification starter contestant has 90 seconds start engine get starting line contestant hand launches plane after racer has act together can beat pants off youre pre pared Throughout years have tried different aircraft designs racing compound cylinder piston bottom its stroke Crank over assembly hand work com pound Next turn over engine model aerodynamically very clean exposed hardware consists engine DuBro switch elevator horn tenna trailIng out back Though thIs version desIgn has conventIonal tall surfaces author prefers T-tall configuration though T-tail susceptible damage happen make bad landing model has much success WILLI circuit January1985 33 really perform about five seconds electric starter Fifth remove piston cylinder assembly clean thoroughly soap water careful get water piston/rod ball joint Reassemble piston cylinder push piston /32 above top dead center piston should stick place assembly held vertical posi tion however should fall out given slight tap finger assembly too tight relap assembly too loose its too late anything about test run assembly anyhow Sixth reassemble lapped piston rod TD crankcase oiling parts thoroughly Seventh mount engine test stand run rich setting 20000 rpm about 2 mm prop should used test running Master Air Screw MAS 51A-4 cut down 4% dia balanced Let engine cool about 2 mm restart run another 2 mm 22000 rpm Let engine cool another 2 mm Restart engine run 20 mm alternating between 20000 rpm 23000 rpm 2 mm Install MAS 51A-4 cut down 4% dia balanced run engine prop should used racing Maximum rpm prop should range 21000 22000 rpm order engine competitive must go contest prepared worst Make sure starting equip ment radio equipment A-l shape fully charged Check glow plug performance comparison new plug rpm drops 250 dont use old plug backup airplane absolute neces sity plan competitive through out season drive hundreds miles race sit watch everyone else having fun because plane damaged during test flights log should kept engines equipment order document ef fects changes made Always use same test prop monitoring performance Test flights absolutely essential ensure proper engine run trim out aircraft aircraft must simple clean 34 Model Aviation Side-mounting allows consistent fuel draw because centerlines venturi fuel tank match up Running inc uei lines through firewall mount produces clean frontal profile Note use 5-40 socket head cap screw mounting propeller Left isa collection airborne hardware required model short base-loaded antenna allows enough range doesnt produce drag full-length Right well-organized neat radio installation assures flawless performance flight after fiight Left Make parts before beginning assembly actual building time can reduced less 20 hours Above Au Lite Ply parts can made 1/8 sheet sized 12 xl 6 Make sure Lite Ply sheet use doesnt have large warps LIIULII WUOKI b Hank tIatHE PLOT CRCKENS SEARCi4 -TNt CLOUD V -ON ThE GOUNO -THINK 0 K K LLER OFF TO PLOT 5P -YEAH SHANGHAI P PATrEPNS 0NTI STMNGI THATS PLUSTIIAT WAS THEIR NOM ThISHAWK NOW RANGES BUSYMN 7-WELL FROM TO X PLUS 20 30 RADIUS PLUSBASE ASTUElOOM LES OUT 0WHEN F Nb TIO5E WHEPE AND FIRST Aw DO MORE BUTGIRLS LL BE BUSY ELSETHEM ON THE GROUN BACK HOME 70 GTRIP-TOO- WORK NGWTH AT V-y TOw ME OFF THAT BLONDEYOU ANO WOO N WANTS NONEOFMEV__ALL OPTHEM pSHE E AMADO *THEc WAYOP~ THRU GOLD N ROD FROM SULLIVAN W TO ALERON COX TO 049 OR 051 ON FOURMOST I/2A MOUNT F-i I/4PLY MOUNT PLATE 1~ 438 TRIANGLE S1OCKALLCORNERS 1/32 PLY REINF AS HOLDOOWN PLATE K F-3 I/4PLY FORMER 1/8 LITE PLY SPAR JOINERATC/S I/8SIG LITE PLY SIDES TOPArD BOTTOM DUBRO 108 QUIK UNK DUBRO 107 HORN 1/8 LITE PLY STAB AND ELEVAlOR /4 BALSA TRIM TAB ON SOFT WIRE 3/8 TRIANGLE LE FIN /4 SOLID BLOCK FOR HOLDDcMN SCREW NOTCH FOR RIBS TIP PLATES 3/8X V2 BALSA TRAILING EDGE 1/16 SHEET LE COVER TOPANDBQITOM RIBS SHOW AS BALSA BUT PLAN CALLS FOR LITE PLY HALF LAP NOTCHES I/B LITE PLV FRONT HOLD DOWN TAKES I/eLITE PLY TAB UNDER LE 1/4 BALSAWING SADDLE FROM 2T0 3 ONLY AD I/4PLY FORMER Left Build wing straightoverthe plan Author recommends use athick cyanoacrylate glue Notches leading andtrailing edges help alignment Right Use masking tape mark saw lines sweepback sure sawing perpendicular bottom Left Add 1/16 balsa sheeting center wing Note sheeting inset between center ribs top Right see cutout wing sheeting clearing elevator servo tongue holding wing frontto fuselage strong light stable predictable have thus far gone through least dozen different designs trying achieve ultimate WILLI AA Pylon Racer Platyhelminthes series has proven successful allowing accu mulate WILLI points 1983 racing season aircraft has above qualities quickbuilding inexpensive Construction first step ensure short successful building session cut out rough-sand parts done lightly contact-cementing extra set plans onto wood sawing out component ribs should cut groups five ensure uniformity save time Also cut out aileron install aileron torque rod tube construction straightforward should able complete entire assembly approx imately 20 hours Start taping set plans building board taping waxed paper over plans wing should constructed first Position tape trailing edge flat plans Assemble ribs trail ing edge Insert leading edge ribs align plans Glue ribs leading trailing edges recommend using thick cyanoacrylate CyA Position glue top main spar Remove wing plans Turn over install glue bottom main spar Add bottom leading edge sheeting trim sand leading edge Remove wing plans add top leading edge sheeting trim Glue wing tips Mark saw lines masking tape saw out center tapered portion Glue wing halves together Shim leading edges trailing edges same height building board before gluing will have unwanted anhedral dihedral Install tongue front wing Add main spar reinforcement piece sheeting center section plywood top plate onto trail ing edge Sand entire wing finish size careful maintain minimum wing thickness 7/ main spars wing now ready servo installation covering Fuselage Install blind nuts Fl drill fuel line holes Fourmost mount Fl Pin front rear top portions fuselage down plans glue fuselage sides top rear portion Locate glue F4 triangular stock between top sides Glue F2 front top portion fuselage glue sides F2 lace glued Position Fl using squar ing block glue front top ly Glue triangular stock top between Fl F2 36 Model Aviation Above Aftersawing thewing halves recheckto make surethe saw lines straight Right Glue wing halvestogetherwith leading trailing edges atthe same height off building board Use whatever scraps have laying around shim necessary Steel squaring blocks used aligning fuselage sides firewall formers Firewall misalignment can disastrous BOTTOM VIEW V5 20 ftftI rF~7IP4 /7/ I~iii-ii- — ______________ // / TOP SWEETING OMITTED U CLA BITT \\IAiV\ I I / [BX.BETEBEE CONOTBOCTIOS CR21 BSSP B1 Ir-rm ENB B BBSSEA -BECBMM20 UA EBOBOBS NOE AD IIB EBSE0000 ION BE ESO KLI MAIM STAB BEIBTOBOEMENT PIECE IS OBEETISO OMITTED FOB CLABI BILL O MATERIALS B S-4A CO BOO IOCAP BOBEU 1131 SM BALSA TMSLISO BOOR 4BRSEIOCB I4I2oBBSIr LI TB-PLY PLAITS COBb BOB 4-40 BLEW MIT IDUBAO ABS AILEBOM BALL LBD AllFD ARP UOII1A LIMITS52031 G EE 7 BE B SIDE SHEETIBS OBMTTED WRAP BOOS WICOPPEB / WISE ABS SOLDER/34 OSETOEB OS SPLICE ?KE WITB LEBOTO OF IOPT ORAL EBPEBBASE PLATYHELMINTHES L[ ORSISBEB BOBAWN BY 122A BCTBACED N IRKED BY JAMES AILBEBBACAPYLON MACEM BIOS GLEASON 0 2555B7 5 Full-Size Plans Available. See Page 180 BA LSA SCRAP BARJN0SWB Glue sides Fl triangular stock Position glue F3 sides Position glue bottom triangular stock add rear bottom portion Remove assembly plans Fuel proof fuel tank radio com partments including inside portion front bottom Glue front bot tom portion Install Fourmost mount sand fuselage shape Assembly wing can now fitted fuselage Position wing wing saddle shape saddle wing leading trailing edges parallel top fuselage both side side front back ie 00 incidence Install rear wing hold-down plate Align wing wing tips equidistant square fuselage centerline within /16 Clamp wing position spot-drill through wing rear wing hold-down plate fuselage Remove wing drill through hold-down plate add blind nut Now align install front wing plate wish build aircraft T-tail vertical stabilizer should added point radio engine fuel tank hardware should now installed ensure no binding interference exists Disassemble parts finish-sand entire aircraft recommendation covering finishing use iron-on covering throughout allows easy repair after unfortunate acci dents occur racing saves time finishing Super MonoKote hinges have also worked out well horizon tal stabilizer After covering reassemble com ponents Position aircraft building board fuselage top par allel building board front back side side 6-in ruler meas ure up building board leading trailing edges check warps Set up wing absolutely true A-in washout trailing edge Use heat gun twist get right Now check balance point TrImming flying AA Pylon Racers critical trim adjustment made rudder trim tab ver tical stabilizer slightly misaligned aircraft will screw ground right after launch especially stabili zer causes left-hand turn therefore sug gest vertical stabilizer aligned extreme care follow first flight procedure listed below 1 Select day wind tween 5 15 mph 2 Range-check radio make sure controls move freely 3 Test run engine set run just tad rich 4 Set rudder trim tab / right back edge 5 Trim elevator level down 6 Have assistant launch plane straight wind giving fairly strong heave keeping wing straight level 7 Avoid giving much up-elevator after launch until good flying speed has reached 8 Adjust aileron elevator level flight very slight left turn 9 Observe plane corners around pylon turns nose-high rudder trim tab will have adjusted left slightly turns nose-low tab will have adjusted right slightly After rudder adjustment will necessary retrim aileron 10 The aircraft set up fixed pickup fuel tank such engine will quit flying inverted however fuel tank nearly full difficult kill engine burn off some fuel during test flights before attempting stop Once aircraft trimmed properly will rock-stable launch groove around course like rails average flier follows racing tips have mentioned builds Platy helminthes suggested specifications will guarantee flier would very competitive WILLI circuit information concerning WILLI racing circuit write call James Gilgenbach Rt 5 Nelson Road Fond du Lac WI 54934 414 921-7455 38 Model Aviation Left You can see view wood parts ready covering required number parts model small Above fuselage built upside down overthe plan balsa triangular stock extends past Lite Ply sides shown PROTEcT YOUR RIGHT TO FLY Safe Flying No Accident Pin front rear top portions fuselage down onto plan glue fuselage sides top rear portIon step text details important points Note installation rear wing holddown plate elevator servo mounts fuselage doublers between F2 F3
Edition: Model Aviation - 1985/01
Page Numbers: 32, 33, 34, 35, 36, 37, 38
AA PYLON RACING using WILLI Wisconsin-Illinois rules has proven interesting aspect aero modeling hobby reasons however some obvi ous ones Friendly competition racers suc cess dependent upon well does against fellow contestants five rounds heat assignment system used wherein no individual competitor has continually race against known hot dogs circuit though individual wants win real en joyment due friendly competitive spirit WILLI contestants Lack sophisticated equipment rules required conduct contest stopwatch flag three pylon poles starting line caller con testant optional three pylon judges starter Fellow contestants often handle lap counting pylon judging out adversely affecting integrity contest 32 Model Aviation model received Its name means fiat worm friendly competitor said airplane looked like worm viewed under microscope college addl tion identification wing numbers help orientation going around pylons Everyone tries RC Pylon Racing tells us gets bloodand want An easy way get started class model built has done well WILLI races rules bit different AMAA Pylon text has lot good advice about make small models flag signal-from starter point objective make 10 laps around pylons cutting finish ahead other racers Simple design parameters air craft wing must constant chord minimum area 200 sq minimum thickness /8 fuselage must least 2Y2 high including wing thickness must have minimum cross-sectional area 6 sq both dimensions occurring between wing leading trailing edges over weight tolerance less fuel 20 32 oz engines used stock 049 051 Cox TDs no modifications allowed other lapping piston crank Any kind needle valve assembly may used fuel normally 25% nitro supplied hosting club No fuel pressurization allowed Regardless what anyone may tell smooth con sistent runs can easily attained Cox TD engines fuel pressurization No flying wings pod-and-boom air craft allowed means remotely stopping engine required Winning strategy Dont get mistaken notion WILLI circuit com prised cream-puff rules neutralize contestant ingenuity given day techniques quest consistently win regardless racing Through experimentation have reached following conclusions Cox TD engine must run reliably full po wer can achieved prop erly lapping engine correctly mounting engine fuel tank rigidity fuselage also very impor tant avoid vibration easy way lap-in piston cyl inder use old Cox Babe Bee crankcase assembly electric starter First closely inspect piston cylinder loose metal particles burrs gouges scratches Remove loose particles burrs gouges scratches serious get new piston cylinder assembly Second using rod-setting tool snug up rod piston socket elimi nate end play careful however tighten too much rod should still freely pivot side side free ly rotate piston Third add light oil rod crank pin hole piston ball joint install piston cylinder onto old Babe Bee other Cox 049105 1 crankcase has approximately A2 removed portion cylinder mounts will allow piston travel above its normal top limit lap ping purposes Fourth apply automotive polishing Upon notification starter contestant has 90 seconds start engine get starting line contestant hand launches plane after racer has act together can beat pants off youre pre pared Throughout years have tried different aircraft designs racing compound cylinder piston bottom its stroke Crank over assembly hand work com pound Next turn over engine model aerodynamically very clean exposed hardware consists engine DuBro switch elevator horn tenna trailIng out back Though thIs version desIgn has conventIonal tall surfaces author prefers T-tall configuration though T-tail susceptible damage happen make bad landing model has much success WILLI circuit January1985 33 really perform about five seconds electric starter Fifth remove piston cylinder assembly clean thoroughly soap water careful get water piston/rod ball joint Reassemble piston cylinder push piston /32 above top dead center piston should stick place assembly held vertical posi tion however should fall out given slight tap finger assembly too tight relap assembly too loose its too late anything about test run assembly anyhow Sixth reassemble lapped piston rod TD crankcase oiling parts thoroughly Seventh mount engine test stand run rich setting 20000 rpm about 2 mm prop should used test running Master Air Screw MAS 51A-4 cut down 4% dia balanced Let engine cool about 2 mm restart run another 2 mm 22000 rpm Let engine cool another 2 mm Restart engine run 20 mm alternating between 20000 rpm 23000 rpm 2 mm Install MAS 51A-4 cut down 4% dia balanced run engine prop should used racing Maximum rpm prop should range 21000 22000 rpm order engine competitive must go contest prepared worst Make sure starting equip ment radio equipment A-l shape fully charged Check glow plug performance comparison new plug rpm drops 250 dont use old plug backup airplane absolute neces sity plan competitive through out season drive hundreds miles race sit watch everyone else having fun because plane damaged during test flights log should kept engines equipment order document ef fects changes made Always use same test prop monitoring performance Test flights absolutely essential ensure proper engine run trim out aircraft aircraft must simple clean 34 Model Aviation Side-mounting allows consistent fuel draw because centerlines venturi fuel tank match up Running inc uei lines through firewall mount produces clean frontal profile Note use 5-40 socket head cap screw mounting propeller Left isa collection airborne hardware required model short base-loaded antenna allows enough range doesnt produce drag full-length Right well-organized neat radio installation assures flawless performance flight after fiight Left Make parts before beginning assembly actual building time can reduced less 20 hours Above Au Lite Ply parts can made 1/8 sheet sized 12 xl 6 Make sure Lite Ply sheet use doesnt have large warps LIIULII WUOKI b Hank tIatHE PLOT CRCKENS SEARCi4 -TNt CLOUD V -ON ThE GOUNO -THINK 0 K K LLER OFF TO PLOT 5P -YEAH SHANGHAI P PATrEPNS 0NTI STMNGI THATS PLUSTIIAT WAS THEIR NOM ThISHAWK NOW RANGES BUSYMN 7-WELL FROM TO X PLUS 20 30 RADIUS PLUSBASE ASTUElOOM LES OUT 0WHEN F Nb TIO5E WHEPE AND FIRST Aw DO MORE BUTGIRLS LL BE BUSY ELSETHEM ON THE GROUN BACK HOME 70 GTRIP-TOO- WORK NGWTH AT V-y TOw ME OFF THAT BLONDEYOU ANO WOO N WANTS NONEOFMEV__ALL OPTHEM pSHE E AMADO *THEc WAYOP~ THRU GOLD N ROD FROM SULLIVAN W TO ALERON COX TO 049 OR 051 ON FOURMOST I/2A MOUNT F-i I/4PLY MOUNT PLATE 1~ 438 TRIANGLE S1OCKALLCORNERS 1/32 PLY REINF AS HOLDOOWN PLATE K F-3 I/4PLY FORMER 1/8 LITE PLY SPAR JOINERATC/S I/8SIG LITE PLY SIDES TOPArD BOTTOM DUBRO 108 QUIK UNK DUBRO 107 HORN 1/8 LITE PLY STAB AND ELEVAlOR /4 BALSA TRIM TAB ON SOFT WIRE 3/8 TRIANGLE LE FIN /4 SOLID BLOCK FOR HOLDDcMN SCREW NOTCH FOR RIBS TIP PLATES 3/8X V2 BALSA TRAILING EDGE 1/16 SHEET LE COVER TOPANDBQITOM RIBS SHOW AS BALSA BUT PLAN CALLS FOR LITE PLY HALF LAP NOTCHES I/B LITE PLV FRONT HOLD DOWN TAKES I/eLITE PLY TAB UNDER LE 1/4 BALSAWING SADDLE FROM 2T0 3 ONLY AD I/4PLY FORMER Left Build wing straightoverthe plan Author recommends use athick cyanoacrylate glue Notches leading andtrailing edges help alignment Right Use masking tape mark saw lines sweepback sure sawing perpendicular bottom Left Add 1/16 balsa sheeting center wing Note sheeting inset between center ribs top Right see cutout wing sheeting clearing elevator servo tongue holding wing frontto fuselage strong light stable predictable have thus far gone through least dozen different designs trying achieve ultimate WILLI AA Pylon Racer Platyhelminthes series has proven successful allowing accu mulate WILLI points 1983 racing season aircraft has above qualities quickbuilding inexpensive Construction first step ensure short successful building session cut out rough-sand parts done lightly contact-cementing extra set plans onto wood sawing out component ribs should cut groups five ensure uniformity save time Also cut out aileron install aileron torque rod tube construction straightforward should able complete entire assembly approx imately 20 hours Start taping set plans building board taping waxed paper over plans wing should constructed first Position tape trailing edge flat plans Assemble ribs trail ing edge Insert leading edge ribs align plans Glue ribs leading trailing edges recommend using thick cyanoacrylate CyA Position glue top main spar Remove wing plans Turn over install glue bottom main spar Add bottom leading edge sheeting trim sand leading edge Remove wing plans add top leading edge sheeting trim Glue wing tips Mark saw lines masking tape saw out center tapered portion Glue wing halves together Shim leading edges trailing edges same height building board before gluing will have unwanted anhedral dihedral Install tongue front wing Add main spar reinforcement piece sheeting center section plywood top plate onto trail ing edge Sand entire wing finish size careful maintain minimum wing thickness 7/ main spars wing now ready servo installation covering Fuselage Install blind nuts Fl drill fuel line holes Fourmost mount Fl Pin front rear top portions fuselage down plans glue fuselage sides top rear portion Locate glue F4 triangular stock between top sides Glue F2 front top portion fuselage glue sides F2 lace glued Position Fl using squar ing block glue front top ly Glue triangular stock top between Fl F2 36 Model Aviation Above Aftersawing thewing halves recheckto make surethe saw lines straight Right Glue wing halvestogetherwith leading trailing edges atthe same height off building board Use whatever scraps have laying around shim necessary Steel squaring blocks used aligning fuselage sides firewall formers Firewall misalignment can disastrous BOTTOM VIEW V5 20 ftftI rF~7IP4 /7/ I~iii-ii- — ______________ // / TOP SWEETING OMITTED U CLA BITT \\IAiV\ I I / [BX.BETEBEE CONOTBOCTIOS CR21 BSSP B1 Ir-rm ENB B BBSSEA -BECBMM20 UA EBOBOBS NOE AD IIB EBSE0000 ION BE ESO KLI MAIM STAB BEIBTOBOEMENT PIECE IS OBEETISO OMITTED FOB CLABI BILL O MATERIALS B S-4A CO BOO IOCAP BOBEU 1131 SM BALSA TMSLISO BOOR 4BRSEIOCB I4I2oBBSIr LI TB-PLY PLAITS COBb BOB 4-40 BLEW MIT IDUBAO ABS AILEBOM BALL LBD AllFD ARP UOII1A LIMITS52031 G EE 7 BE B SIDE SHEETIBS OBMTTED WRAP BOOS WICOPPEB / WISE ABS SOLDER/34 OSETOEB OS SPLICE ?KE WITB LEBOTO OF IOPT ORAL EBPEBBASE PLATYHELMINTHES L[ ORSISBEB BOBAWN BY 122A BCTBACED N IRKED BY JAMES AILBEBBACAPYLON MACEM BIOS GLEASON 0 2555B7 5 Full-Size Plans Available. See Page 180 BA LSA SCRAP BARJN0SWB Glue sides Fl triangular stock Position glue F3 sides Position glue bottom triangular stock add rear bottom portion Remove assembly plans Fuel proof fuel tank radio com partments including inside portion front bottom Glue front bot tom portion Install Fourmost mount sand fuselage shape Assembly wing can now fitted fuselage Position wing wing saddle shape saddle wing leading trailing edges parallel top fuselage both side side front back ie 00 incidence Install rear wing hold-down plate Align wing wing tips equidistant square fuselage centerline within /16 Clamp wing position spot-drill through wing rear wing hold-down plate fuselage Remove wing drill through hold-down plate add blind nut Now align install front wing plate wish build aircraft T-tail vertical stabilizer should added point radio engine fuel tank hardware should now installed ensure no binding interference exists Disassemble parts finish-sand entire aircraft recommendation covering finishing use iron-on covering throughout allows easy repair after unfortunate acci dents occur racing saves time finishing Super MonoKote hinges have also worked out well horizon tal stabilizer After covering reassemble com ponents Position aircraft building board fuselage top par allel building board front back side side 6-in ruler meas ure up building board leading trailing edges check warps Set up wing absolutely true A-in washout trailing edge Use heat gun twist get right Now check balance point TrImming flying AA Pylon Racers critical trim adjustment made rudder trim tab ver tical stabilizer slightly misaligned aircraft will screw ground right after launch especially stabili zer causes left-hand turn therefore sug gest vertical stabilizer aligned extreme care follow first flight procedure listed below 1 Select day wind tween 5 15 mph 2 Range-check radio make sure controls move freely 3 Test run engine set run just tad rich 4 Set rudder trim tab / right back edge 5 Trim elevator level down 6 Have assistant launch plane straight wind giving fairly strong heave keeping wing straight level 7 Avoid giving much up-elevator after launch until good flying speed has reached 8 Adjust aileron elevator level flight very slight left turn 9 Observe plane corners around pylon turns nose-high rudder trim tab will have adjusted left slightly turns nose-low tab will have adjusted right slightly After rudder adjustment will necessary retrim aileron 10 The aircraft set up fixed pickup fuel tank such engine will quit flying inverted however fuel tank nearly full difficult kill engine burn off some fuel during test flights before attempting stop Once aircraft trimmed properly will rock-stable launch groove around course like rails average flier follows racing tips have mentioned builds Platy helminthes suggested specifications will guarantee flier would very competitive WILLI circuit information concerning WILLI racing circuit write call James Gilgenbach Rt 5 Nelson Road Fond du Lac WI 54934 414 921-7455 38 Model Aviation Left You can see view wood parts ready covering required number parts model small Above fuselage built upside down overthe plan balsa triangular stock extends past Lite Ply sides shown PROTEcT YOUR RIGHT TO FLY Safe Flying No Accident Pin front rear top portions fuselage down onto plan glue fuselage sides top rear portIon step text details important points Note installation rear wing holddown plate elevator servo mounts fuselage doublers between F2 F3
Edition: Model Aviation - 1985/01
Page Numbers: 32, 33, 34, 35, 36, 37, 38
AA PYLON RACING using WILLI Wisconsin-Illinois rules has proven interesting aspect aero modeling hobby reasons however some obvi ous ones Friendly competition racers suc cess dependent upon well does against fellow contestants five rounds heat assignment system used wherein no individual competitor has continually race against known hot dogs circuit though individual wants win real en joyment due friendly competitive spirit WILLI contestants Lack sophisticated equipment rules required conduct contest stopwatch flag three pylon poles starting line caller con testant optional three pylon judges starter Fellow contestants often handle lap counting pylon judging out adversely affecting integrity contest 32 Model Aviation model received Its name means fiat worm friendly competitor said airplane looked like worm viewed under microscope college addl tion identification wing numbers help orientation going around pylons Everyone tries RC Pylon Racing tells us gets bloodand want An easy way get started class model built has done well WILLI races rules bit different AMAA Pylon text has lot good advice about make small models flag signal-from starter point objective make 10 laps around pylons cutting finish ahead other racers Simple design parameters air craft wing must constant chord minimum area 200 sq minimum thickness /8 fuselage must least 2Y2 high including wing thickness must have minimum cross-sectional area 6 sq both dimensions occurring between wing leading trailing edges over weight tolerance less fuel 20 32 oz engines used stock 049 051 Cox TDs no modifications allowed other lapping piston crank Any kind needle valve assembly may used fuel normally 25% nitro supplied hosting club No fuel pressurization allowed Regardless what anyone may tell smooth con sistent runs can easily attained Cox TD engines fuel pressurization No flying wings pod-and-boom air craft allowed means remotely stopping engine required Winning strategy Dont get mistaken notion WILLI circuit com prised cream-puff rules neutralize contestant ingenuity given day techniques quest consistently win regardless racing Through experimentation have reached following conclusions Cox TD engine must run reliably full po wer can achieved prop erly lapping engine correctly mounting engine fuel tank rigidity fuselage also very impor tant avoid vibration easy way lap-in piston cyl inder use old Cox Babe Bee crankcase assembly electric starter First closely inspect piston cylinder loose metal particles burrs gouges scratches Remove loose particles burrs gouges scratches serious get new piston cylinder assembly Second using rod-setting tool snug up rod piston socket elimi nate end play careful however tighten too much rod should still freely pivot side side free ly rotate piston Third add light oil rod crank pin hole piston ball joint install piston cylinder onto old Babe Bee other Cox 049105 1 crankcase has approximately A2 removed portion cylinder mounts will allow piston travel above its normal top limit lap ping purposes Fourth apply automotive polishing Upon notification starter contestant has 90 seconds start engine get starting line contestant hand launches plane after racer has act together can beat pants off youre pre pared Throughout years have tried different aircraft designs racing compound cylinder piston bottom its stroke Crank over assembly hand work com pound Next turn over engine model aerodynamically very clean exposed hardware consists engine DuBro switch elevator horn tenna trailIng out back Though thIs version desIgn has conventIonal tall surfaces author prefers T-tall configuration though T-tail susceptible damage happen make bad landing model has much success WILLI circuit January1985 33 really perform about five seconds electric starter Fifth remove piston cylinder assembly clean thoroughly soap water careful get water piston/rod ball joint Reassemble piston cylinder push piston /32 above top dead center piston should stick place assembly held vertical posi tion however should fall out given slight tap finger assembly too tight relap assembly too loose its too late anything about test run assembly anyhow Sixth reassemble lapped piston rod TD crankcase oiling parts thoroughly Seventh mount engine test stand run rich setting 20000 rpm about 2 mm prop should used test running Master Air Screw MAS 51A-4 cut down 4% dia balanced Let engine cool about 2 mm restart run another 2 mm 22000 rpm Let engine cool another 2 mm Restart engine run 20 mm alternating between 20000 rpm 23000 rpm 2 mm Install MAS 51A-4 cut down 4% dia balanced run engine prop should used racing Maximum rpm prop should range 21000 22000 rpm order engine competitive must go contest prepared worst Make sure starting equip ment radio equipment A-l shape fully charged Check glow plug performance comparison new plug rpm drops 250 dont use old plug backup airplane absolute neces sity plan competitive through out season drive hundreds miles race sit watch everyone else having fun because plane damaged during test flights log should kept engines equipment order document ef fects changes made Always use same test prop monitoring performance Test flights absolutely essential ensure proper engine run trim out aircraft aircraft must simple clean 34 Model Aviation Side-mounting allows consistent fuel draw because centerlines venturi fuel tank match up Running inc uei lines through firewall mount produces clean frontal profile Note use 5-40 socket head cap screw mounting propeller Left isa collection airborne hardware required model short base-loaded antenna allows enough range doesnt produce drag full-length Right well-organized neat radio installation assures flawless performance flight after fiight Left Make parts before beginning assembly actual building time can reduced less 20 hours Above Au Lite Ply parts can made 1/8 sheet sized 12 xl 6 Make sure Lite Ply sheet use doesnt have large warps LIIULII WUOKI b Hank tIatHE PLOT CRCKENS SEARCi4 -TNt CLOUD V -ON ThE GOUNO -THINK 0 K K LLER OFF TO PLOT 5P -YEAH SHANGHAI P PATrEPNS 0NTI STMNGI THATS PLUSTIIAT WAS THEIR NOM ThISHAWK NOW RANGES BUSYMN 7-WELL FROM TO X PLUS 20 30 RADIUS PLUSBASE ASTUElOOM LES OUT 0WHEN F Nb TIO5E WHEPE AND FIRST Aw DO MORE BUTGIRLS LL BE BUSY ELSETHEM ON THE GROUN BACK HOME 70 GTRIP-TOO- WORK NGWTH AT V-y TOw ME OFF THAT BLONDEYOU ANO WOO N WANTS NONEOFMEV__ALL OPTHEM pSHE E AMADO *THEc WAYOP~ THRU GOLD N ROD FROM SULLIVAN W TO ALERON COX TO 049 OR 051 ON FOURMOST I/2A MOUNT F-i I/4PLY MOUNT PLATE 1~ 438 TRIANGLE S1OCKALLCORNERS 1/32 PLY REINF AS HOLDOOWN PLATE K F-3 I/4PLY FORMER 1/8 LITE PLY SPAR JOINERATC/S I/8SIG LITE PLY SIDES TOPArD BOTTOM DUBRO 108 QUIK UNK DUBRO 107 HORN 1/8 LITE PLY STAB AND ELEVAlOR /4 BALSA TRIM TAB ON SOFT WIRE 3/8 TRIANGLE LE FIN /4 SOLID BLOCK FOR HOLDDcMN SCREW NOTCH FOR RIBS TIP PLATES 3/8X V2 BALSA TRAILING EDGE 1/16 SHEET LE COVER TOPANDBQITOM RIBS SHOW AS BALSA BUT PLAN CALLS FOR LITE PLY HALF LAP NOTCHES I/B LITE PLV FRONT HOLD DOWN TAKES I/eLITE PLY TAB UNDER LE 1/4 BALSAWING SADDLE FROM 2T0 3 ONLY AD I/4PLY FORMER Left Build wing straightoverthe plan Author recommends use athick cyanoacrylate glue Notches leading andtrailing edges help alignment Right Use masking tape mark saw lines sweepback sure sawing perpendicular bottom Left Add 1/16 balsa sheeting center wing Note sheeting inset between center ribs top Right see cutout wing sheeting clearing elevator servo tongue holding wing frontto fuselage strong light stable predictable have thus far gone through least dozen different designs trying achieve ultimate WILLI AA Pylon Racer Platyhelminthes series has proven successful allowing accu mulate WILLI points 1983 racing season aircraft has above qualities quickbuilding inexpensive Construction first step ensure short successful building session cut out rough-sand parts done lightly contact-cementing extra set plans onto wood sawing out component ribs should cut groups five ensure uniformity save time Also cut out aileron install aileron torque rod tube construction straightforward should able complete entire assembly approx imately 20 hours Start taping set plans building board taping waxed paper over plans wing should constructed first Position tape trailing edge flat plans Assemble ribs trail ing edge Insert leading edge ribs align plans Glue ribs leading trailing edges recommend using thick cyanoacrylate CyA Position glue top main spar Remove wing plans Turn over install glue bottom main spar Add bottom leading edge sheeting trim sand leading edge Remove wing plans add top leading edge sheeting trim Glue wing tips Mark saw lines masking tape saw out center tapered portion Glue wing halves together Shim leading edges trailing edges same height building board before gluing will have unwanted anhedral dihedral Install tongue front wing Add main spar reinforcement piece sheeting center section plywood top plate onto trail ing edge Sand entire wing finish size careful maintain minimum wing thickness 7/ main spars wing now ready servo installation covering Fuselage Install blind nuts Fl drill fuel line holes Fourmost mount Fl Pin front rear top portions fuselage down plans glue fuselage sides top rear portion Locate glue F4 triangular stock between top sides Glue F2 front top portion fuselage glue sides F2 lace glued Position Fl using squar ing block glue front top ly Glue triangular stock top between Fl F2 36 Model Aviation Above Aftersawing thewing halves recheckto make surethe saw lines straight Right Glue wing halvestogetherwith leading trailing edges atthe same height off building board Use whatever scraps have laying around shim necessary Steel squaring blocks used aligning fuselage sides firewall formers Firewall misalignment can disastrous BOTTOM VIEW V5 20 ftftI rF~7IP4 /7/ I~iii-ii- — ______________ // / TOP SWEETING OMITTED U CLA BITT \\IAiV\ I I / [BX.BETEBEE CONOTBOCTIOS CR21 BSSP B1 Ir-rm ENB B BBSSEA -BECBMM20 UA EBOBOBS NOE AD IIB EBSE0000 ION BE ESO KLI MAIM STAB BEIBTOBOEMENT PIECE IS OBEETISO OMITTED FOB CLABI BILL O MATERIALS B S-4A CO BOO IOCAP BOBEU 1131 SM BALSA TMSLISO BOOR 4BRSEIOCB I4I2oBBSIr LI TB-PLY PLAITS COBb BOB 4-40 BLEW MIT IDUBAO ABS AILEBOM BALL LBD AllFD ARP UOII1A LIMITS52031 G EE 7 BE B SIDE SHEETIBS OBMTTED WRAP BOOS WICOPPEB / WISE ABS SOLDER/34 OSETOEB OS SPLICE ?KE WITB LEBOTO OF IOPT ORAL EBPEBBASE PLATYHELMINTHES L[ ORSISBEB BOBAWN BY 122A BCTBACED N IRKED BY JAMES AILBEBBACAPYLON MACEM BIOS GLEASON 0 2555B7 5 Full-Size Plans Available. See Page 180 BA LSA SCRAP BARJN0SWB Glue sides Fl triangular stock Position glue F3 sides Position glue bottom triangular stock add rear bottom portion Remove assembly plans Fuel proof fuel tank radio com partments including inside portion front bottom Glue front bot tom portion Install Fourmost mount sand fuselage shape Assembly wing can now fitted fuselage Position wing wing saddle shape saddle wing leading trailing edges parallel top fuselage both side side front back ie 00 incidence Install rear wing hold-down plate Align wing wing tips equidistant square fuselage centerline within /16 Clamp wing position spot-drill through wing rear wing hold-down plate fuselage Remove wing drill through hold-down plate add blind nut Now align install front wing plate wish build aircraft T-tail vertical stabilizer should added point radio engine fuel tank hardware should now installed ensure no binding interference exists Disassemble parts finish-sand entire aircraft recommendation covering finishing use iron-on covering throughout allows easy repair after unfortunate acci dents occur racing saves time finishing Super MonoKote hinges have also worked out well horizon tal stabilizer After covering reassemble com ponents Position aircraft building board fuselage top par allel building board front back side side 6-in ruler meas ure up building board leading trailing edges check warps Set up wing absolutely true A-in washout trailing edge Use heat gun twist get right Now check balance point TrImming flying AA Pylon Racers critical trim adjustment made rudder trim tab ver tical stabilizer slightly misaligned aircraft will screw ground right after launch especially stabili zer causes left-hand turn therefore sug gest vertical stabilizer aligned extreme care follow first flight procedure listed below 1 Select day wind tween 5 15 mph 2 Range-check radio make sure controls move freely 3 Test run engine set run just tad rich 4 Set rudder trim tab / right back edge 5 Trim elevator level down 6 Have assistant launch plane straight wind giving fairly strong heave keeping wing straight level 7 Avoid giving much up-elevator after launch until good flying speed has reached 8 Adjust aileron elevator level flight very slight left turn 9 Observe plane corners around pylon turns nose-high rudder trim tab will have adjusted left slightly turns nose-low tab will have adjusted right slightly After rudder adjustment will necessary retrim aileron 10 The aircraft set up fixed pickup fuel tank such engine will quit flying inverted however fuel tank nearly full difficult kill engine burn off some fuel during test flights before attempting stop Once aircraft trimmed properly will rock-stable launch groove around course like rails average flier follows racing tips have mentioned builds Platy helminthes suggested specifications will guarantee flier would very competitive WILLI circuit information concerning WILLI racing circuit write call James Gilgenbach Rt 5 Nelson Road Fond du Lac WI 54934 414 921-7455 38 Model Aviation Left You can see view wood parts ready covering required number parts model small Above fuselage built upside down overthe plan balsa triangular stock extends past Lite Ply sides shown PROTEcT YOUR RIGHT TO FLY Safe Flying No Accident Pin front rear top portions fuselage down onto plan glue fuselage sides top rear portIon step text details important points Note installation rear wing holddown plate elevator servo mounts fuselage doublers between F2 F3