C cura STUDY Fowler Flaps would have made equally appropriate title article Fowler flaps P-38 originat ed about same time two go hand-in-hand aviation history Moreover use Fowler Flaps P-38 what first attracted airplane led investigate could duplicate system model Several years ago doing some re search Air Force Museum WrightPatterson AFB came across picture P-38 landing configuration Fowler landing flaps full down out position Fowler flaps thought incredulously airplane designed 1937 peri od Air Corps still flying fabric-covered planes ad vanced fighter day P-26 Peashooter idea Fowler flaps intrigu ing vision Scale model P 38 floating like butterfly landing Fowler flaps extended enticed straight drawing board However five months later after countless hours spent 66 Model Aviation mo Top beauty finished project belies technical prowess required make chanics Fowler flaps retracts work Above author winning P-38 Lake Charles Nats 1986 Model detailed after P-38 display Air Force Museum Left The fuselage center section chassis farmers Note aluminum flap mechanism attached %2 ply chassis sides Right Fowler Flap mechanisms attached fuselage center section Using plans Its easy duplicate what took hours first design Left During early stages construction P-38 rests jig board see text its construction Centerlines trued up wing washout built stage Right Basic framework now taking shape its time test out mechanical operation ground test box connected electrical system flaps landing gear operated check binding linkages erratic operation sketching drawing puzzling construct ing mock-ups just general conceptualiz ing back square problem Vd run Fowler flap installa tion P-38 clean work ing mechanisms linkages inside wing Unlike todays planes jetliners have kinds pods protuberances exterior surface wing cover up jackscrews linkages designers P-38 managed get everything enclosed within wing cutting down drag increasing overall efficiency plane Now really hooked knew Id have research Fowler flap try discover did unobtru sively full-size P-38 What kind crazy linkages did dream up move flap out wing position hind trailing edge same time rotate down 450 designed man named Fowler Yes learned indeed man named Fowler designer came Lockheed Stearman Hammond Airplane Company au tunin 1935 Lockheeds chief engineer time Hall Hibbard liked Fowlers flap idea well convinced Lockheedss patent counsel underwrite patent Lockheed Model 14 Super Electra transport selected test bed Fowlers flap system first flight Model 14 Fowler flaps made January 1937the same month coinci dentally Air Corps put out its bid specifications new type pursuit plane Up time Lockheed involved military pursuit/combat planes company jumped both feet result its Model Starting left working counterclockwise see Fowler flap mechanism go through its cycle drag links follow tracks cut aluminum sheeting allowing model accu rately duplicate down out movement flaps full scale P-38 Four sets assemblies attached appropriate ribs see plans actuate four flaps plane February 1988 67 - -~0Sss0 ---_______ E00TR000CKSCRE00M0 0S0ESAS1SST~0s ROSOC EONS COCSpT,0CEUC0 PAHTEOSC%0 L__ IT MACTILT VQ VIEW ESS CEIV COAWS SOCSF TbAE0 005 H0SSL 00Scoooso $TACSE 0& HEA SO/0E0XOC0XFWSEOEC55-oss -o EOTEEo SSO5E ~f i-~ TG 00i ESOSSpS50500000N ES6SLESOSSOEXEEop SC 0 ~L70I DL7 CARSE 00005 FROM SAISAFROM RNMET OJODEES ONE 0575500050ELEOATOE flOMC SACS 0000I0SS COWLING TARTS6005550[ 000 ES SFI55ERS LOCKHEED P-38L LIGHTNING 5I00 0AoSSCAT 0CONTROLUNESCALE lV 1S ______________________________ 5 0000 500* 0o PLODESIGNED & DRAWN BY LT CXL JACK STOLLY DALLAS TEXAS ___________________ SMUEWAitiSHEETS SF5 22 designated XP-38 Air Corps Fowler flap just novations incorporated new design Construction XP-38 began July 1938 progressed rapidly though new plane loaded kinds firsts addition Fowler flaps first airplane have butt-jointed flush-riveted exterior surfaces turbo superchargers first make extensive use stainless steel first twin en gine counter-rotating propellers completed within seven months tak en March Field Riverside CA its first flight January 1939 Just few weeks later February 11 overanx ious Air Corps sent its new machine record-breaking cross-country flight March Field Mitchell Field Long Island NYunfortunately have crash landing Despite awkward beginning P-38 went become versatile fighter plane World War ILbut thats whole different story Fowler flap licensed other air craft companies used such fa mous planes Consolidated B-24 Lockheed Constellation also known Connie Getting back problem clean stallation Fowler flaps model P-38 did eventually come up solution shown detail plans accompany ing pictures realize ironically system identical principle devised Lockheed engineers years ago full-size P-38 tracks drag links ends of four flaps two inboard two outboard extend rotate flaps just model does Also flaps full-size version powered 68 Model Aviation Full-Size Plans Available. See Page 170 LIP PART OPTS CS 4~FFAPAAAVAPAUAtAS 54-- cZzr 4OA 4WS iASR______ __________________ ______ I____________ -iji i ACTCJACASTAATAWB~-~ -ABAlSAAAT4 WA PASS ATIAT 5RAA _____________ APAWOSSAPI AASAAAAATSASW SAASTAAAAAABSTP TASWCAIASSESSION PA 5505 AWAS WISPAW ASATIOPASLOCKHEED F- 8L LIGHTNING CONTROLUNE IV. ________________________DESIGNED S DRAWN BY LI COL ABCS SIGLLY I-means jackscrew cable/pulley sys- has added advantage eliminating flut- work goes designing tern almost same model ter because flaps locked no matter scratch-building model such system works scale fashion what position theyre inseemed well worth P-38 won February 1988 69 Full-Size Plans Available . See Page 170 4PR0VREUP -LEESRRNS PORrOGORERT 000 JJEREp i I ER LnEEEVIRE 0 $ ROStErS R RUE-PEN AlE LENRIEEEERRVIERPER WURNSTOSRNN RREVRTRTROOLENECrOVEN1 ER VIEVY-ERITORPELR PULEl VOEPROLNTEP~- ft TOP ELEYE G OROS REVERE NE ER ERVETOR* REERRER RU-SW OR RTENNERSERORTEOJA TVREVLSETORRENT S0ERRV-~ EVUTSREVRESSOT SRVLEROO0ERVTS NNERL ROOt CIER PR OROERE ROE ERRrV VSS0ERTE________________________________________________ r ERRATREORENOR TESOLEOESSOSRI NoR pOSSoR RRRVOWWSSl P3VEVRERSRURR 7kRS t TORE ORTERNPRRLRESE-Trrg P4WE~0ORVUSSO oRPESENlTE OVETEVA P RRfl MEVa VEER RETREPTER_______YE EAR RRTS REEL MAE z REF RLERP&RTNE1 TERN FROM OAR SPREL P0500MI IK~ 7~P8LLIIN7 OEUiELI OSR 0RE0EE OVONS 00000A OREOROA SOES OORTONART MEN EEOEEEEEPLENOOR .aSLAWOPSEER00 LSOIOESKINED& OAAWPR BY LT CO JACK 9TOUY IS ROOROYSVE Ii RRVSRSTLEEOTO PERT 000RE 0 WOUR AR first place Open Sport Scale 1986 Nats Lake Charles heighten satisfaction 50th anniversary AMA 50th year model building addition P-38 awarded NASA Scale Flight Achievement award Control Line scoring highest num ber flight points Construction P-38 shown plans true scale no deviations scale necessary oaly conces sion youll need make set thrust line starboard engine about one-anda-half degrees right toward out70 Model Aviation RE CERNENFO EE ORE RR PERT NP SETS -l11E {ffThW0RE OEEO SENVOR UNE WOTEO TREOR RSS4 Left jackacrew servo cockpit nose section operates landing gear retract mechanism Shown door closed position Right three-line beilorank burled somewhere right angle beiicrank seen above part number 17 drawing Elevator pushrod reversal neceseary cause ieftlrlght belicrank chosen oper ates opposite direction thats required real challenge fowier flaps keep levers mechanisms side wing done original side flying circle compensate engine failure left engine should occur No offset rudders necessary plane balances perfectly added weights two de ground control box left plugs plane test landIng gear flap operations also fires glow plugs engine starting flight control handle has throt tle three-line operation battery switches operate flaps gear during flight February 1988 71 U lead-outs connect just outboard left maIn wheel well Du-Bro bail links left nacelle better display appearance connect wheel door hinges close Another set line guides pictured after wheels retract Making linkhere located near inboard wing tip ages work pain worth effort Located just behind cockpIt two levers operate torque rods con nected doors main landIng gear grees washout outer wing panels scale works perfectly model have yet make bad landing airplane Im sure its because wash out wings gives such good stall characteristics way build airplane right build jig board used piece 3A-in wood cut 12 x 54 must abso lutely flat warps Leave Continued page 160 front sections planked wing sheeted model now ready have tall sections added Author says pianked cowlings easIer make fibergiase cowls Watching tiaps come out go down required 450 what made model worth building time effort required FULL BODY PILOT KIT Contains pilot head hands boots helmet cap goggles full templates easy instruc tions Easy assemble finish Some simple sewing required Fully positionable tool #20E% scale #205-/ scale #204-A scale #203-% scale Price 895 995 1095 1695 DARNED GOOD AIRMEN w Lightest pilots available Lifelike vinyl latex rubber Sportsman Barnstormer Full Body Bust BuildBUST PILOT KIT Contains pilot head helmet sport cap goggles jacket Easy assemble finish Price $lOSi/c scale NEW 595 LAwing #106-V5 scale695 #105-/ scale 795 #104-/ scale me #103-V2 scale1495mple requfred JET PILOT KIT Pilot has molded let helmet Contains face mask osygen hose Estreme ly Realistic Weighs less /2 OZ Price #3OE-/ scale #307l/r scale 5 ORDERING INSTRUCTIONS See dealer first Order direct Add $100 shipping NYS residents add 7u/0 tan Send checs money order CODS OK Send $100 catalog See Dealer add Dollar direct order handling reissued mentioned earlier col umn has become reality Thanks efforts Cam Martin has sufficient interest shown three models F-8F Bearcat F-4U Corsair AD Skyraider Bob Smurthwaite produce limited number kits Price $36 $42 Corsair plus $2 shipping Anyone interested may contact Bob PO Box 2947 La Grande OR 97850 phone 503 963-0596 Exhaust deflector final correction igin plumbing-fitting exhaust deflector described August issue origi nal idea belonged Orin Humphrics efforts involved soldering elbow mount sol der joint failed readily because heat exhaust gas idea integral mount shown photographs described column belongs Stan Johnson Both Stan Orin have using latest design much success Navy Carrier Advisory Committee As chair man Navy Carrier Advisory Committee try keep members committee can represent areas Carrier events regularly flown Ron Haase has represented Flor ida past recently has inactive events has asked replaced committee Since have flown Southeast recently have address information readily avail able Carrier modelers area am taking opportunity ask volunteers active Carrier modeler Southeastern states interested serving Navy Carrier Advisory Committee please write tell Carrier activities will happy consider possible membership committee P-38/StoIIy Continued page 71 structure jig throughout construc tion process keeps thing lined up properly can move jig board out way want use workbench something else did build tail booms aft form er E- 11 until front part plane pretty well completed saves bench space allows easy access model assembly innards under way also allows work landing gear make necessary adjustments plane jig Mark formers ribs chassis parts centerlines shown plans As semble cockpit center-pod chassis formers making sure centerlines match Assemble two engine nacelle chassis parts formers Set three units up about six inches above jig board using A-in plywood supports tack-glued board clamped formers Using ruler ad just everything proper height mea suring top jig board centerline parts Wings Insert support x Ye-in spruce main wing spars wing ribs aluminum flap tracks should already tached respective ribs x -in wing leading edge Note wing rib centerlines have two degrees positive incidence relation master aircraft centerline Starting near mid point outer wing panels positive incidence reduced build washout wing Once wing ribs lined up want add /8 x A-in /t6 x /16-in spruce stringers top bot tom wing ribs Glue up lock everything place Fowler flaps system Build flap sys tem following plans photos making sure no binding four flaps works true easy Multistrand 012-in control line wire used connect flaps jackscrew servo flaps will go full up full down position seven eight seconds pretty close scale operating time Landing gears parts landing gear system detailed plans should machined accurately possible using drill press operations jigsaw small lathe also come handy re moved limit switches landing gear jackscrew servo relocated spot could easily adjusted precisely control up down limits 115 SCALE W Golden Era biplanes will come alive smooth flying eay building flying machine Its big enough catch attention yet small enough use everyday glow engine 2657 N E t88rn SIred Marni F orica 33180 Telephone 935-1436 KIT FEATURES Machined die cut balsa select plywood hardwoods Hardware package Pre-bent landing gear cabine wire Vacuum formed ABS cowl aleleron caps gas cover Mylar decals Full size plans instruction book including isometric drawings SPECIFICATIONS 1/5 Scale 72in Span Area 1530 sqin 4 channel Radio 61-12 Engine Weight 12 lbs Fuse 54 1/2 160 Model Aviation Item Byro-Jet Performance Pkg w/Rossi 90 Rossi 90 w/Header Pipe New Custom Tuned Muffler Engine Mount #9 retrofit 6130099$54992 613009838799 59301007071 259 95 * 4950* 593009435712500* *Add $300 shipping per item AK HI overseas call shipping costs Prices subject change notice landing gear travel door-closing mechanism guaranteed drive sane right out hobby see doors open close fullsize plane youll glad went trouble sure use balance spring main wheels shown plans take load off jackscrew ser vo save wear tear rest project routine model building covered detail drawings tail section added again leveling up centerlines engine nacelles centerlines tail booms flying P-38 modified J Rob erts three-line handle shown photo adding toggle switches flap landing gear control center switch selects between either flap land ing gear function also works off switch whole system 021-in multistrand control lines braided enameled copper magnet wire carry current because lines themselves have high resistance would require 30 40 volts get enough current through oper ate servos Although magnet wire self insulated wiped thin coating clear silicone caulking material further sulate bond wire lines main landing gear wheels fitted drum brakes activated ap plying full down elevator plane taxiing Locate planes ground test box jack convenient place choice box plugs starboard supercharger neatly hides six pin plugholes box plugged plane can operate landing gear flaps out having control lines hooked up box also has switch activates glow plug engine starting Just throw switch proper engine hit electric starter simple can Taken whole complicated model incorporates reproduces some inctricate systems fullscale P-38 aircraft duplicate retract able landing gear Fowler flap systems faithfully no easy task Scale model building its results count project worth effort itself its exercise problem solving may yield insights can applied other modeling problems Thats model builders art advances step step After routinely doing things model ing today would have difficult-toimpossible just 20 years ago some features model help move Control Line Scale modeling notch forward will happy dint skilled pa tient efforts youve brought life P-38 rewards lot fun flying eight pounds plus its definitely going loop does fly like full-scale heavy fighter plane Feed power steadily takeoff after threequarters circle shes built up enough speed come off ground just slight nudge up elevator Hit gear switch can feel become less nose-heavy wheels retract rear youre really off running doors close landing throttle back half power get flaps down just let ease down As soon main gear touches down nose lowers youve stopped flyingno bounce no fuss Thats way its supposed Keep em flying Scale documentation P-38 easily obtained hobby shops aviation sections bookstores libraries other scale documentation sources P-38 modeled after display Air Force Museum Dayton Ohio FF Duration/Murphy Continued page 73 install Occasionally will get bad Good thinking Eddy Well Ill close Aid Station now reopen again next column hope will two months now Indoor Rubber Speed Should reside lo cale winter months terminate outdoor flying contacts other Free Flighters will take place monthly club meetingsand must look activities hold modeling interests until February 1988 161 IMPROVED ALSN* B Ljrjet 140, 44 44340 erformance Rossi 90 has Arrived long-awaited Rossi 90 has undergone extensive testing under Research Personnels direction has passed level flying colors Running 20% nitromethane fuel Rossi 90 powered Byro-Jet equipped newly designed Tuned Muffler turning steady 20400 rpm producing much 2 pounds thrust 05 77. increase weight 5 ounces All-in-all new Rossi 90 produces same brute power previously experienced 81 can expected same Rossi reputation solid trouble free reliable operation obvious new 90 Designed specifically Byro-Jet Ducted Fan items necessary retrofit existing Byro-Jet System equipped OS 77 Rossi 81 new Engine Mount Tuned Muffler Rossi 90 Engine have Byron Originals ducted fan jet flying Byro-Jet powered model sort have looking power thrust Rossi 90 just ticket SPECIFICATIONS RPM20400Fan Diameter Static Thrust13A-13Total Performance Pkg Shroud Diameter OD7 Weight2 lb 7 oz Recommended Fuel ByronOriginals udes Rossi 90Header Pipe Performance Blended Fuel 20%Byro-Jet Fan Custom Tuned NitromethaneMuffler Pipe Coupler Mounting Bracket Hardware Available Exclusively from. Byron Originals Inc PO Box 279 Ida Grove IA 51445 Phone 712 364-3165 Telex 293595 MIDWEST IDAG Order Information Order No Retail Factory $32995*
Edition: Model Aviation - 1988/02
Page Numbers: 66, 67, 68, 69, 70, 71, 160, 161
C cura STUDY Fowler Flaps would have made equally appropriate title article Fowler flaps P-38 originat ed about same time two go hand-in-hand aviation history Moreover use Fowler Flaps P-38 what first attracted airplane led investigate could duplicate system model Several years ago doing some re search Air Force Museum WrightPatterson AFB came across picture P-38 landing configuration Fowler landing flaps full down out position Fowler flaps thought incredulously airplane designed 1937 peri od Air Corps still flying fabric-covered planes ad vanced fighter day P-26 Peashooter idea Fowler flaps intrigu ing vision Scale model P 38 floating like butterfly landing Fowler flaps extended enticed straight drawing board However five months later after countless hours spent 66 Model Aviation mo Top beauty finished project belies technical prowess required make chanics Fowler flaps retracts work Above author winning P-38 Lake Charles Nats 1986 Model detailed after P-38 display Air Force Museum Left The fuselage center section chassis farmers Note aluminum flap mechanism attached %2 ply chassis sides Right Fowler Flap mechanisms attached fuselage center section Using plans Its easy duplicate what took hours first design Left During early stages construction P-38 rests jig board see text its construction Centerlines trued up wing washout built stage Right Basic framework now taking shape its time test out mechanical operation ground test box connected electrical system flaps landing gear operated check binding linkages erratic operation sketching drawing puzzling construct ing mock-ups just general conceptualiz ing back square problem Vd run Fowler flap installa tion P-38 clean work ing mechanisms linkages inside wing Unlike todays planes jetliners have kinds pods protuberances exterior surface wing cover up jackscrews linkages designers P-38 managed get everything enclosed within wing cutting down drag increasing overall efficiency plane Now really hooked knew Id have research Fowler flap try discover did unobtru sively full-size P-38 What kind crazy linkages did dream up move flap out wing position hind trailing edge same time rotate down 450 designed man named Fowler Yes learned indeed man named Fowler designer came Lockheed Stearman Hammond Airplane Company au tunin 1935 Lockheeds chief engineer time Hall Hibbard liked Fowlers flap idea well convinced Lockheedss patent counsel underwrite patent Lockheed Model 14 Super Electra transport selected test bed Fowlers flap system first flight Model 14 Fowler flaps made January 1937the same month coinci dentally Air Corps put out its bid specifications new type pursuit plane Up time Lockheed involved military pursuit/combat planes company jumped both feet result its Model Starting left working counterclockwise see Fowler flap mechanism go through its cycle drag links follow tracks cut aluminum sheeting allowing model accu rately duplicate down out movement flaps full scale P-38 Four sets assemblies attached appropriate ribs see plans actuate four flaps plane February 1988 67 - -~0Sss0 ---_______ E00TR000CKSCRE00M0 0S0ESAS1SST~0s ROSOC EONS COCSpT,0CEUC0 PAHTEOSC%0 L__ IT MACTILT VQ VIEW ESS CEIV COAWS SOCSF TbAE0 005 H0SSL 00Scoooso $TACSE 0& HEA SO/0E0XOC0XFWSEOEC55-oss -o EOTEEo SSO5E ~f i-~ TG 00i ESOSSpS50500000N ES6SLESOSSOEXEEop SC 0 ~L70I DL7 CARSE 00005 FROM SAISAFROM RNMET OJODEES ONE 0575500050ELEOATOE flOMC SACS 0000I0SS COWLING TARTS6005550[ 000 ES SFI55ERS LOCKHEED P-38L LIGHTNING 5I00 0AoSSCAT 0CONTROLUNESCALE lV 1S ______________________________ 5 0000 500* 0o PLODESIGNED & DRAWN BY LT CXL JACK STOLLY DALLAS TEXAS ___________________ SMUEWAitiSHEETS SF5 22 designated XP-38 Air Corps Fowler flap just novations incorporated new design Construction XP-38 began July 1938 progressed rapidly though new plane loaded kinds firsts addition Fowler flaps first airplane have butt-jointed flush-riveted exterior surfaces turbo superchargers first make extensive use stainless steel first twin en gine counter-rotating propellers completed within seven months tak en March Field Riverside CA its first flight January 1939 Just few weeks later February 11 overanx ious Air Corps sent its new machine record-breaking cross-country flight March Field Mitchell Field Long Island NYunfortunately have crash landing Despite awkward beginning P-38 went become versatile fighter plane World War ILbut thats whole different story Fowler flap licensed other air craft companies used such fa mous planes Consolidated B-24 Lockheed Constellation also known Connie Getting back problem clean stallation Fowler flaps model P-38 did eventually come up solution shown detail plans accompany ing pictures realize ironically system identical principle devised Lockheed engineers years ago full-size P-38 tracks drag links ends of four flaps two inboard two outboard extend rotate flaps just model does Also flaps full-size version powered 68 Model Aviation Full-Size Plans Available. See Page 170 LIP PART OPTS CS 4~FFAPAAAVAPAUAtAS 54-- cZzr 4OA 4WS iASR______ __________________ ______ I____________ -iji i ACTCJACASTAATAWB~-~ -ABAlSAAAT4 WA PASS ATIAT 5RAA _____________ APAWOSSAPI AASAAAAATSASW SAASTAAAAAABSTP TASWCAIASSESSION PA 5505 AWAS WISPAW ASATIOPASLOCKHEED F- 8L LIGHTNING CONTROLUNE IV. ________________________DESIGNED S DRAWN BY LI COL ABCS SIGLLY I-means jackscrew cable/pulley sys- has added advantage eliminating flut- work goes designing tern almost same model ter because flaps locked no matter scratch-building model such system works scale fashion what position theyre inseemed well worth P-38 won February 1988 69 Full-Size Plans Available . See Page 170 4PR0VREUP -LEESRRNS PORrOGORERT 000 JJEREp i I ER LnEEEVIRE 0 $ ROStErS R RUE-PEN AlE LENRIEEEERRVIERPER WURNSTOSRNN RREVRTRTROOLENECrOVEN1 ER VIEVY-ERITORPELR PULEl VOEPROLNTEP~- ft TOP ELEYE G OROS REVERE NE ER ERVETOR* REERRER RU-SW OR RTENNERSERORTEOJA TVREVLSETORRENT S0ERRV-~ EVUTSREVRESSOT SRVLEROO0ERVTS NNERL ROOt CIER PR OROERE ROE ERRrV VSS0ERTE________________________________________________ r ERRATREORENOR TESOLEOESSOSRI NoR pOSSoR RRRVOWWSSl P3VEVRERSRURR 7kRS t TORE ORTERNPRRLRESE-Trrg P4WE~0ORVUSSO oRPESENlTE OVETEVA P RRfl MEVa VEER RETREPTER_______YE EAR RRTS REEL MAE z REF RLERP&RTNE1 TERN FROM OAR SPREL P0500MI IK~ 7~P8LLIIN7 OEUiELI OSR 0RE0EE OVONS 00000A OREOROA SOES OORTONART MEN EEOEEEEEPLENOOR .aSLAWOPSEER00 LSOIOESKINED& OAAWPR BY LT CO JACK 9TOUY IS ROOROYSVE Ii RRVSRSTLEEOTO PERT 000RE 0 WOUR AR first place Open Sport Scale 1986 Nats Lake Charles heighten satisfaction 50th anniversary AMA 50th year model building addition P-38 awarded NASA Scale Flight Achievement award Control Line scoring highest num ber flight points Construction P-38 shown plans true scale no deviations scale necessary oaly conces sion youll need make set thrust line starboard engine about one-anda-half degrees right toward out70 Model Aviation RE CERNENFO EE ORE RR PERT NP SETS -l11E {ffThW0RE OEEO SENVOR UNE WOTEO TREOR RSS4 Left jackacrew servo cockpit nose section operates landing gear retract mechanism Shown door closed position Right three-line beilorank burled somewhere right angle beiicrank seen above part number 17 drawing Elevator pushrod reversal neceseary cause ieftlrlght belicrank chosen oper ates opposite direction thats required real challenge fowier flaps keep levers mechanisms side wing done original side flying circle compensate engine failure left engine should occur No offset rudders necessary plane balances perfectly added weights two de ground control box left plugs plane test landIng gear flap operations also fires glow plugs engine starting flight control handle has throt tle three-line operation battery switches operate flaps gear during flight February 1988 71 U lead-outs connect just outboard left maIn wheel well Du-Bro bail links left nacelle better display appearance connect wheel door hinges close Another set line guides pictured after wheels retract Making linkhere located near inboard wing tip ages work pain worth effort Located just behind cockpIt two levers operate torque rods con nected doors main landIng gear grees washout outer wing panels scale works perfectly model have yet make bad landing airplane Im sure its because wash out wings gives such good stall characteristics way build airplane right build jig board used piece 3A-in wood cut 12 x 54 must abso lutely flat warps Leave Continued page 160 front sections planked wing sheeted model now ready have tall sections added Author says pianked cowlings easIer make fibergiase cowls Watching tiaps come out go down required 450 what made model worth building time effort required FULL BODY PILOT KIT Contains pilot head hands boots helmet cap goggles full templates easy instruc tions Easy assemble finish Some simple sewing required Fully positionable tool #20E% scale #205-/ scale #204-A scale #203-% scale Price 895 995 1095 1695 DARNED GOOD AIRMEN w Lightest pilots available Lifelike vinyl latex rubber Sportsman Barnstormer Full Body Bust BuildBUST PILOT KIT Contains pilot head helmet sport cap goggles jacket Easy assemble finish Price $lOSi/c scale NEW 595 LAwing #106-V5 scale695 #105-/ scale 795 #104-/ scale me #103-V2 scale1495mple requfred JET PILOT KIT Pilot has molded let helmet Contains face mask osygen hose Estreme ly Realistic Weighs less /2 OZ Price #3OE-/ scale #307l/r scale 5 ORDERING INSTRUCTIONS See dealer first Order direct Add $100 shipping NYS residents add 7u/0 tan Send checs money order CODS OK Send $100 catalog See Dealer add Dollar direct order handling reissued mentioned earlier col umn has become reality Thanks efforts Cam Martin has sufficient interest shown three models F-8F Bearcat F-4U Corsair AD Skyraider Bob Smurthwaite produce limited number kits Price $36 $42 Corsair plus $2 shipping Anyone interested may contact Bob PO Box 2947 La Grande OR 97850 phone 503 963-0596 Exhaust deflector final correction igin plumbing-fitting exhaust deflector described August issue origi nal idea belonged Orin Humphrics efforts involved soldering elbow mount sol der joint failed readily because heat exhaust gas idea integral mount shown photographs described column belongs Stan Johnson Both Stan Orin have using latest design much success Navy Carrier Advisory Committee As chair man Navy Carrier Advisory Committee try keep members committee can represent areas Carrier events regularly flown Ron Haase has represented Flor ida past recently has inactive events has asked replaced committee Since have flown Southeast recently have address information readily avail able Carrier modelers area am taking opportunity ask volunteers active Carrier modeler Southeastern states interested serving Navy Carrier Advisory Committee please write tell Carrier activities will happy consider possible membership committee P-38/StoIIy Continued page 71 structure jig throughout construc tion process keeps thing lined up properly can move jig board out way want use workbench something else did build tail booms aft form er E- 11 until front part plane pretty well completed saves bench space allows easy access model assembly innards under way also allows work landing gear make necessary adjustments plane jig Mark formers ribs chassis parts centerlines shown plans As semble cockpit center-pod chassis formers making sure centerlines match Assemble two engine nacelle chassis parts formers Set three units up about six inches above jig board using A-in plywood supports tack-glued board clamped formers Using ruler ad just everything proper height mea suring top jig board centerline parts Wings Insert support x Ye-in spruce main wing spars wing ribs aluminum flap tracks should already tached respective ribs x -in wing leading edge Note wing rib centerlines have two degrees positive incidence relation master aircraft centerline Starting near mid point outer wing panels positive incidence reduced build washout wing Once wing ribs lined up want add /8 x A-in /t6 x /16-in spruce stringers top bot tom wing ribs Glue up lock everything place Fowler flaps system Build flap sys tem following plans photos making sure no binding four flaps works true easy Multistrand 012-in control line wire used connect flaps jackscrew servo flaps will go full up full down position seven eight seconds pretty close scale operating time Landing gears parts landing gear system detailed plans should machined accurately possible using drill press operations jigsaw small lathe also come handy re moved limit switches landing gear jackscrew servo relocated spot could easily adjusted precisely control up down limits 115 SCALE W Golden Era biplanes will come alive smooth flying eay building flying machine Its big enough catch attention yet small enough use everyday glow engine 2657 N E t88rn SIred Marni F orica 33180 Telephone 935-1436 KIT FEATURES Machined die cut balsa select plywood hardwoods Hardware package Pre-bent landing gear cabine wire Vacuum formed ABS cowl aleleron caps gas cover Mylar decals Full size plans instruction book including isometric drawings SPECIFICATIONS 1/5 Scale 72in Span Area 1530 sqin 4 channel Radio 61-12 Engine Weight 12 lbs Fuse 54 1/2 160 Model Aviation Item Byro-Jet Performance Pkg w/Rossi 90 Rossi 90 w/Header Pipe New Custom Tuned Muffler Engine Mount #9 retrofit 6130099$54992 613009838799 59301007071 259 95 * 4950* 593009435712500* *Add $300 shipping per item AK HI overseas call shipping costs Prices subject change notice landing gear travel door-closing mechanism guaranteed drive sane right out hobby see doors open close fullsize plane youll glad went trouble sure use balance spring main wheels shown plans take load off jackscrew ser vo save wear tear rest project routine model building covered detail drawings tail section added again leveling up centerlines engine nacelles centerlines tail booms flying P-38 modified J Rob erts three-line handle shown photo adding toggle switches flap landing gear control center switch selects between either flap land ing gear function also works off switch whole system 021-in multistrand control lines braided enameled copper magnet wire carry current because lines themselves have high resistance would require 30 40 volts get enough current through oper ate servos Although magnet wire self insulated wiped thin coating clear silicone caulking material further sulate bond wire lines main landing gear wheels fitted drum brakes activated ap plying full down elevator plane taxiing Locate planes ground test box jack convenient place choice box plugs starboard supercharger neatly hides six pin plugholes box plugged plane can operate landing gear flaps out having control lines hooked up box also has switch activates glow plug engine starting Just throw switch proper engine hit electric starter simple can Taken whole complicated model incorporates reproduces some inctricate systems fullscale P-38 aircraft duplicate retract able landing gear Fowler flap systems faithfully no easy task Scale model building its results count project worth effort itself its exercise problem solving may yield insights can applied other modeling problems Thats model builders art advances step step After routinely doing things model ing today would have difficult-toimpossible just 20 years ago some features model help move Control Line Scale modeling notch forward will happy dint skilled pa tient efforts youve brought life P-38 rewards lot fun flying eight pounds plus its definitely going loop does fly like full-scale heavy fighter plane Feed power steadily takeoff after threequarters circle shes built up enough speed come off ground just slight nudge up elevator Hit gear switch can feel become less nose-heavy wheels retract rear youre really off running doors close landing throttle back half power get flaps down just let ease down As soon main gear touches down nose lowers youve stopped flyingno bounce no fuss Thats way its supposed Keep em flying Scale documentation P-38 easily obtained hobby shops aviation sections bookstores libraries other scale documentation sources P-38 modeled after display Air Force Museum Dayton Ohio FF Duration/Murphy Continued page 73 install Occasionally will get bad Good thinking Eddy Well Ill close Aid Station now reopen again next column hope will two months now Indoor Rubber Speed Should reside lo cale winter months terminate outdoor flying contacts other Free Flighters will take place monthly club meetingsand must look activities hold modeling interests until February 1988 161 IMPROVED ALSN* B Ljrjet 140, 44 44340 erformance Rossi 90 has Arrived long-awaited Rossi 90 has undergone extensive testing under Research Personnels direction has passed level flying colors Running 20% nitromethane fuel Rossi 90 powered Byro-Jet equipped newly designed Tuned Muffler turning steady 20400 rpm producing much 2 pounds thrust 05 77. increase weight 5 ounces All-in-all new Rossi 90 produces same brute power previously experienced 81 can expected same Rossi reputation solid trouble free reliable operation obvious new 90 Designed specifically Byro-Jet Ducted Fan items necessary retrofit existing Byro-Jet System equipped OS 77 Rossi 81 new Engine Mount Tuned Muffler Rossi 90 Engine have Byron Originals ducted fan jet flying Byro-Jet powered model sort have looking power thrust Rossi 90 just ticket SPECIFICATIONS RPM20400Fan Diameter Static Thrust13A-13Total Performance Pkg Shroud Diameter OD7 Weight2 lb 7 oz Recommended Fuel ByronOriginals udes Rossi 90Header Pipe Performance Blended Fuel 20%Byro-Jet Fan Custom Tuned NitromethaneMuffler Pipe Coupler Mounting Bracket Hardware Available Exclusively from. Byron Originals Inc PO Box 279 Ida Grove IA 51445 Phone 712 364-3165 Telex 293595 MIDWEST IDAG Order Information Order No Retail Factory $32995*
Edition: Model Aviation - 1988/02
Page Numbers: 66, 67, 68, 69, 70, 71, 160, 161
C cura STUDY Fowler Flaps would have made equally appropriate title article Fowler flaps P-38 originat ed about same time two go hand-in-hand aviation history Moreover use Fowler Flaps P-38 what first attracted airplane led investigate could duplicate system model Several years ago doing some re search Air Force Museum WrightPatterson AFB came across picture P-38 landing configuration Fowler landing flaps full down out position Fowler flaps thought incredulously airplane designed 1937 peri od Air Corps still flying fabric-covered planes ad vanced fighter day P-26 Peashooter idea Fowler flaps intrigu ing vision Scale model P 38 floating like butterfly landing Fowler flaps extended enticed straight drawing board However five months later after countless hours spent 66 Model Aviation mo Top beauty finished project belies technical prowess required make chanics Fowler flaps retracts work Above author winning P-38 Lake Charles Nats 1986 Model detailed after P-38 display Air Force Museum Left The fuselage center section chassis farmers Note aluminum flap mechanism attached %2 ply chassis sides Right Fowler Flap mechanisms attached fuselage center section Using plans Its easy duplicate what took hours first design Left During early stages construction P-38 rests jig board see text its construction Centerlines trued up wing washout built stage Right Basic framework now taking shape its time test out mechanical operation ground test box connected electrical system flaps landing gear operated check binding linkages erratic operation sketching drawing puzzling construct ing mock-ups just general conceptualiz ing back square problem Vd run Fowler flap installa tion P-38 clean work ing mechanisms linkages inside wing Unlike todays planes jetliners have kinds pods protuberances exterior surface wing cover up jackscrews linkages designers P-38 managed get everything enclosed within wing cutting down drag increasing overall efficiency plane Now really hooked knew Id have research Fowler flap try discover did unobtru sively full-size P-38 What kind crazy linkages did dream up move flap out wing position hind trailing edge same time rotate down 450 designed man named Fowler Yes learned indeed man named Fowler designer came Lockheed Stearman Hammond Airplane Company au tunin 1935 Lockheeds chief engineer time Hall Hibbard liked Fowlers flap idea well convinced Lockheedss patent counsel underwrite patent Lockheed Model 14 Super Electra transport selected test bed Fowlers flap system first flight Model 14 Fowler flaps made January 1937the same month coinci dentally Air Corps put out its bid specifications new type pursuit plane Up time Lockheed involved military pursuit/combat planes company jumped both feet result its Model Starting left working counterclockwise see Fowler flap mechanism go through its cycle drag links follow tracks cut aluminum sheeting allowing model accu rately duplicate down out movement flaps full scale P-38 Four sets assemblies attached appropriate ribs see plans actuate four flaps plane February 1988 67 - -~0Sss0 ---_______ E00TR000CKSCRE00M0 0S0ESAS1SST~0s ROSOC EONS COCSpT,0CEUC0 PAHTEOSC%0 L__ IT MACTILT VQ VIEW ESS CEIV COAWS SOCSF TbAE0 005 H0SSL 00Scoooso $TACSE 0& HEA SO/0E0XOC0XFWSEOEC55-oss -o EOTEEo SSO5E ~f i-~ TG 00i ESOSSpS50500000N ES6SLESOSSOEXEEop SC 0 ~L70I DL7 CARSE 00005 FROM SAISAFROM RNMET OJODEES ONE 0575500050ELEOATOE flOMC SACS 0000I0SS COWLING TARTS6005550[ 000 ES SFI55ERS LOCKHEED P-38L LIGHTNING 5I00 0AoSSCAT 0CONTROLUNESCALE lV 1S ______________________________ 5 0000 500* 0o PLODESIGNED & DRAWN BY LT CXL JACK STOLLY DALLAS TEXAS ___________________ SMUEWAitiSHEETS SF5 22 designated XP-38 Air Corps Fowler flap just novations incorporated new design Construction XP-38 began July 1938 progressed rapidly though new plane loaded kinds firsts addition Fowler flaps first airplane have butt-jointed flush-riveted exterior surfaces turbo superchargers first make extensive use stainless steel first twin en gine counter-rotating propellers completed within seven months tak en March Field Riverside CA its first flight January 1939 Just few weeks later February 11 overanx ious Air Corps sent its new machine record-breaking cross-country flight March Field Mitchell Field Long Island NYunfortunately have crash landing Despite awkward beginning P-38 went become versatile fighter plane World War ILbut thats whole different story Fowler flap licensed other air craft companies used such fa mous planes Consolidated B-24 Lockheed Constellation also known Connie Getting back problem clean stallation Fowler flaps model P-38 did eventually come up solution shown detail plans accompany ing pictures realize ironically system identical principle devised Lockheed engineers years ago full-size P-38 tracks drag links ends of four flaps two inboard two outboard extend rotate flaps just model does Also flaps full-size version powered 68 Model Aviation Full-Size Plans Available. See Page 170 LIP PART OPTS CS 4~FFAPAAAVAPAUAtAS 54-- cZzr 4OA 4WS iASR______ __________________ ______ I____________ -iji i ACTCJACASTAATAWB~-~ -ABAlSAAAT4 WA PASS ATIAT 5RAA _____________ APAWOSSAPI AASAAAAATSASW SAASTAAAAAABSTP TASWCAIASSESSION PA 5505 AWAS WISPAW ASATIOPASLOCKHEED F- 8L LIGHTNING CONTROLUNE IV. ________________________DESIGNED S DRAWN BY LI COL ABCS SIGLLY I-means jackscrew cable/pulley sys- has added advantage eliminating flut- work goes designing tern almost same model ter because flaps locked no matter scratch-building model such system works scale fashion what position theyre inseemed well worth P-38 won February 1988 69 Full-Size Plans Available . See Page 170 4PR0VREUP -LEESRRNS PORrOGORERT 000 JJEREp i I ER LnEEEVIRE 0 $ ROStErS R RUE-PEN AlE LENRIEEEERRVIERPER WURNSTOSRNN RREVRTRTROOLENECrOVEN1 ER VIEVY-ERITORPELR PULEl VOEPROLNTEP~- ft TOP ELEYE G OROS REVERE NE ER ERVETOR* REERRER RU-SW OR RTENNERSERORTEOJA TVREVLSETORRENT S0ERRV-~ EVUTSREVRESSOT SRVLEROO0ERVTS NNERL ROOt CIER PR OROERE ROE ERRrV VSS0ERTE________________________________________________ r ERRATREORENOR TESOLEOESSOSRI NoR pOSSoR RRRVOWWSSl P3VEVRERSRURR 7kRS t TORE ORTERNPRRLRESE-Trrg P4WE~0ORVUSSO oRPESENlTE OVETEVA P RRfl MEVa VEER RETREPTER_______YE EAR RRTS REEL MAE z REF RLERP&RTNE1 TERN FROM OAR SPREL P0500MI IK~ 7~P8LLIIN7 OEUiELI OSR 0RE0EE OVONS 00000A OREOROA SOES OORTONART MEN EEOEEEEEPLENOOR .aSLAWOPSEER00 LSOIOESKINED& OAAWPR BY LT CO JACK 9TOUY IS ROOROYSVE Ii RRVSRSTLEEOTO PERT 000RE 0 WOUR AR first place Open Sport Scale 1986 Nats Lake Charles heighten satisfaction 50th anniversary AMA 50th year model building addition P-38 awarded NASA Scale Flight Achievement award Control Line scoring highest num ber flight points Construction P-38 shown plans true scale no deviations scale necessary oaly conces sion youll need make set thrust line starboard engine about one-anda-half degrees right toward out70 Model Aviation RE CERNENFO EE ORE RR PERT NP SETS -l11E {ffThW0RE OEEO SENVOR UNE WOTEO TREOR RSS4 Left jackacrew servo cockpit nose section operates landing gear retract mechanism Shown door closed position Right three-line beilorank burled somewhere right angle beiicrank seen above part number 17 drawing Elevator pushrod reversal neceseary cause ieftlrlght belicrank chosen oper ates opposite direction thats required real challenge fowier flaps keep levers mechanisms side wing done original side flying circle compensate engine failure left engine should occur No offset rudders necessary plane balances perfectly added weights two de ground control box left plugs plane test landIng gear flap operations also fires glow plugs engine starting flight control handle has throt tle three-line operation battery switches operate flaps gear during flight February 1988 71 U lead-outs connect just outboard left maIn wheel well Du-Bro bail links left nacelle better display appearance connect wheel door hinges close Another set line guides pictured after wheels retract Making linkhere located near inboard wing tip ages work pain worth effort Located just behind cockpIt two levers operate torque rods con nected doors main landIng gear grees washout outer wing panels scale works perfectly model have yet make bad landing airplane Im sure its because wash out wings gives such good stall characteristics way build airplane right build jig board used piece 3A-in wood cut 12 x 54 must abso lutely flat warps Leave Continued page 160 front sections planked wing sheeted model now ready have tall sections added Author says pianked cowlings easIer make fibergiase cowls Watching tiaps come out go down required 450 what made model worth building time effort required FULL BODY PILOT KIT Contains pilot head hands boots helmet cap goggles full templates easy instruc tions Easy assemble finish Some simple sewing required Fully positionable tool #20E% scale #205-/ scale #204-A scale #203-% scale Price 895 995 1095 1695 DARNED GOOD AIRMEN w Lightest pilots available Lifelike vinyl latex rubber Sportsman Barnstormer Full Body Bust BuildBUST PILOT KIT Contains pilot head helmet sport cap goggles jacket Easy assemble finish Price $lOSi/c scale NEW 595 LAwing #106-V5 scale695 #105-/ scale 795 #104-/ scale me #103-V2 scale1495mple requfred JET PILOT KIT Pilot has molded let helmet Contains face mask osygen hose Estreme ly Realistic Weighs less /2 OZ Price #3OE-/ scale #307l/r scale 5 ORDERING INSTRUCTIONS See dealer first Order direct Add $100 shipping NYS residents add 7u/0 tan Send checs money order CODS OK Send $100 catalog See Dealer add Dollar direct order handling reissued mentioned earlier col umn has become reality Thanks efforts Cam Martin has sufficient interest shown three models F-8F Bearcat F-4U Corsair AD Skyraider Bob Smurthwaite produce limited number kits Price $36 $42 Corsair plus $2 shipping Anyone interested may contact Bob PO Box 2947 La Grande OR 97850 phone 503 963-0596 Exhaust deflector final correction igin plumbing-fitting exhaust deflector described August issue origi nal idea belonged Orin Humphrics efforts involved soldering elbow mount sol der joint failed readily because heat exhaust gas idea integral mount shown photographs described column belongs Stan Johnson Both Stan Orin have using latest design much success Navy Carrier Advisory Committee As chair man Navy Carrier Advisory Committee try keep members committee can represent areas Carrier events regularly flown Ron Haase has represented Flor ida past recently has inactive events has asked replaced committee Since have flown Southeast recently have address information readily avail able Carrier modelers area am taking opportunity ask volunteers active Carrier modeler Southeastern states interested serving Navy Carrier Advisory Committee please write tell Carrier activities will happy consider possible membership committee P-38/StoIIy Continued page 71 structure jig throughout construc tion process keeps thing lined up properly can move jig board out way want use workbench something else did build tail booms aft form er E- 11 until front part plane pretty well completed saves bench space allows easy access model assembly innards under way also allows work landing gear make necessary adjustments plane jig Mark formers ribs chassis parts centerlines shown plans As semble cockpit center-pod chassis formers making sure centerlines match Assemble two engine nacelle chassis parts formers Set three units up about six inches above jig board using A-in plywood supports tack-glued board clamped formers Using ruler ad just everything proper height mea suring top jig board centerline parts Wings Insert support x Ye-in spruce main wing spars wing ribs aluminum flap tracks should already tached respective ribs x -in wing leading edge Note wing rib centerlines have two degrees positive incidence relation master aircraft centerline Starting near mid point outer wing panels positive incidence reduced build washout wing Once wing ribs lined up want add /8 x A-in /t6 x /16-in spruce stringers top bot tom wing ribs Glue up lock everything place Fowler flaps system Build flap sys tem following plans photos making sure no binding four flaps works true easy Multistrand 012-in control line wire used connect flaps jackscrew servo flaps will go full up full down position seven eight seconds pretty close scale operating time Landing gears parts landing gear system detailed plans should machined accurately possible using drill press operations jigsaw small lathe also come handy re moved limit switches landing gear jackscrew servo relocated spot could easily adjusted precisely control up down limits 115 SCALE W Golden Era biplanes will come alive smooth flying eay building flying machine Its big enough catch attention yet small enough use everyday glow engine 2657 N E t88rn SIred Marni F orica 33180 Telephone 935-1436 KIT FEATURES Machined die cut balsa select plywood hardwoods Hardware package Pre-bent landing gear cabine wire Vacuum formed ABS cowl aleleron caps gas cover Mylar decals Full size plans instruction book including isometric drawings SPECIFICATIONS 1/5 Scale 72in Span Area 1530 sqin 4 channel Radio 61-12 Engine Weight 12 lbs Fuse 54 1/2 160 Model Aviation Item Byro-Jet Performance Pkg w/Rossi 90 Rossi 90 w/Header Pipe New Custom Tuned Muffler Engine Mount #9 retrofit 6130099$54992 613009838799 59301007071 259 95 * 4950* 593009435712500* *Add $300 shipping per item AK HI overseas call shipping costs Prices subject change notice landing gear travel door-closing mechanism guaranteed drive sane right out hobby see doors open close fullsize plane youll glad went trouble sure use balance spring main wheels shown plans take load off jackscrew ser vo save wear tear rest project routine model building covered detail drawings tail section added again leveling up centerlines engine nacelles centerlines tail booms flying P-38 modified J Rob erts three-line handle shown photo adding toggle switches flap landing gear control center switch selects between either flap land ing gear function also works off switch whole system 021-in multistrand control lines braided enameled copper magnet wire carry current because lines themselves have high resistance would require 30 40 volts get enough current through oper ate servos Although magnet wire self insulated wiped thin coating clear silicone caulking material further sulate bond wire lines main landing gear wheels fitted drum brakes activated ap plying full down elevator plane taxiing Locate planes ground test box jack convenient place choice box plugs starboard supercharger neatly hides six pin plugholes box plugged plane can operate landing gear flaps out having control lines hooked up box also has switch activates glow plug engine starting Just throw switch proper engine hit electric starter simple can Taken whole complicated model incorporates reproduces some inctricate systems fullscale P-38 aircraft duplicate retract able landing gear Fowler flap systems faithfully no easy task Scale model building its results count project worth effort itself its exercise problem solving may yield insights can applied other modeling problems Thats model builders art advances step step After routinely doing things model ing today would have difficult-toimpossible just 20 years ago some features model help move Control Line Scale modeling notch forward will happy dint skilled pa tient efforts youve brought life P-38 rewards lot fun flying eight pounds plus its definitely going loop does fly like full-scale heavy fighter plane Feed power steadily takeoff after threequarters circle shes built up enough speed come off ground just slight nudge up elevator Hit gear switch can feel become less nose-heavy wheels retract rear youre really off running doors close landing throttle back half power get flaps down just let ease down As soon main gear touches down nose lowers youve stopped flyingno bounce no fuss Thats way its supposed Keep em flying Scale documentation P-38 easily obtained hobby shops aviation sections bookstores libraries other scale documentation sources P-38 modeled after display Air Force Museum Dayton Ohio FF Duration/Murphy Continued page 73 install Occasionally will get bad Good thinking Eddy Well Ill close Aid Station now reopen again next column hope will two months now Indoor Rubber Speed Should reside lo cale winter months terminate outdoor flying contacts other Free Flighters will take place monthly club meetingsand must look activities hold modeling interests until February 1988 161 IMPROVED ALSN* B Ljrjet 140, 44 44340 erformance Rossi 90 has Arrived long-awaited Rossi 90 has undergone extensive testing under Research Personnels direction has passed level flying colors Running 20% nitromethane fuel Rossi 90 powered Byro-Jet equipped newly designed Tuned Muffler turning steady 20400 rpm producing much 2 pounds thrust 05 77. increase weight 5 ounces All-in-all new Rossi 90 produces same brute power previously experienced 81 can expected same Rossi reputation solid trouble free reliable operation obvious new 90 Designed specifically Byro-Jet Ducted Fan items necessary retrofit existing Byro-Jet System equipped OS 77 Rossi 81 new Engine Mount Tuned Muffler Rossi 90 Engine have Byron Originals ducted fan jet flying Byro-Jet powered model sort have looking power thrust Rossi 90 just ticket SPECIFICATIONS RPM20400Fan Diameter Static Thrust13A-13Total Performance Pkg Shroud Diameter OD7 Weight2 lb 7 oz Recommended Fuel ByronOriginals udes Rossi 90Header Pipe Performance Blended Fuel 20%Byro-Jet Fan Custom Tuned NitromethaneMuffler Pipe Coupler Mounting Bracket Hardware Available Exclusively from. Byron Originals Inc PO Box 279 Ida Grove IA 51445 Phone 712 364-3165 Telex 293595 MIDWEST IDAG Order Information Order No Retail Factory $32995*
Edition: Model Aviation - 1988/02
Page Numbers: 66, 67, 68, 69, 70, 71, 160, 161
C cura STUDY Fowler Flaps would have made equally appropriate title article Fowler flaps P-38 originat ed about same time two go hand-in-hand aviation history Moreover use Fowler Flaps P-38 what first attracted airplane led investigate could duplicate system model Several years ago doing some re search Air Force Museum WrightPatterson AFB came across picture P-38 landing configuration Fowler landing flaps full down out position Fowler flaps thought incredulously airplane designed 1937 peri od Air Corps still flying fabric-covered planes ad vanced fighter day P-26 Peashooter idea Fowler flaps intrigu ing vision Scale model P 38 floating like butterfly landing Fowler flaps extended enticed straight drawing board However five months later after countless hours spent 66 Model Aviation mo Top beauty finished project belies technical prowess required make chanics Fowler flaps retracts work Above author winning P-38 Lake Charles Nats 1986 Model detailed after P-38 display Air Force Museum Left The fuselage center section chassis farmers Note aluminum flap mechanism attached %2 ply chassis sides Right Fowler Flap mechanisms attached fuselage center section Using plans Its easy duplicate what took hours first design Left During early stages construction P-38 rests jig board see text its construction Centerlines trued up wing washout built stage Right Basic framework now taking shape its time test out mechanical operation ground test box connected electrical system flaps landing gear operated check binding linkages erratic operation sketching drawing puzzling construct ing mock-ups just general conceptualiz ing back square problem Vd run Fowler flap installa tion P-38 clean work ing mechanisms linkages inside wing Unlike todays planes jetliners have kinds pods protuberances exterior surface wing cover up jackscrews linkages designers P-38 managed get everything enclosed within wing cutting down drag increasing overall efficiency plane Now really hooked knew Id have research Fowler flap try discover did unobtru sively full-size P-38 What kind crazy linkages did dream up move flap out wing position hind trailing edge same time rotate down 450 designed man named Fowler Yes learned indeed man named Fowler designer came Lockheed Stearman Hammond Airplane Company au tunin 1935 Lockheeds chief engineer time Hall Hibbard liked Fowlers flap idea well convinced Lockheedss patent counsel underwrite patent Lockheed Model 14 Super Electra transport selected test bed Fowlers flap system first flight Model 14 Fowler flaps made January 1937the same month coinci dentally Air Corps put out its bid specifications new type pursuit plane Up time Lockheed involved military pursuit/combat planes company jumped both feet result its Model Starting left working counterclockwise see Fowler flap mechanism go through its cycle drag links follow tracks cut aluminum sheeting allowing model accu rately duplicate down out movement flaps full scale P-38 Four sets assemblies attached appropriate ribs see plans actuate four flaps plane February 1988 67 - -~0Sss0 ---_______ E00TR000CKSCRE00M0 0S0ESAS1SST~0s ROSOC EONS COCSpT,0CEUC0 PAHTEOSC%0 L__ IT MACTILT VQ VIEW ESS CEIV COAWS SOCSF TbAE0 005 H0SSL 00Scoooso $TACSE 0& HEA SO/0E0XOC0XFWSEOEC55-oss -o EOTEEo SSO5E ~f i-~ TG 00i ESOSSpS50500000N ES6SLESOSSOEXEEop SC 0 ~L70I DL7 CARSE 00005 FROM SAISAFROM RNMET OJODEES ONE 0575500050ELEOATOE flOMC SACS 0000I0SS COWLING TARTS6005550[ 000 ES SFI55ERS LOCKHEED P-38L LIGHTNING 5I00 0AoSSCAT 0CONTROLUNESCALE lV 1S ______________________________ 5 0000 500* 0o PLODESIGNED & DRAWN BY LT CXL JACK STOLLY DALLAS TEXAS ___________________ SMUEWAitiSHEETS SF5 22 designated XP-38 Air Corps Fowler flap just novations incorporated new design Construction XP-38 began July 1938 progressed rapidly though new plane loaded kinds firsts addition Fowler flaps first airplane have butt-jointed flush-riveted exterior surfaces turbo superchargers first make extensive use stainless steel first twin en gine counter-rotating propellers completed within seven months tak en March Field Riverside CA its first flight January 1939 Just few weeks later February 11 overanx ious Air Corps sent its new machine record-breaking cross-country flight March Field Mitchell Field Long Island NYunfortunately have crash landing Despite awkward beginning P-38 went become versatile fighter plane World War ILbut thats whole different story Fowler flap licensed other air craft companies used such fa mous planes Consolidated B-24 Lockheed Constellation also known Connie Getting back problem clean stallation Fowler flaps model P-38 did eventually come up solution shown detail plans accompany ing pictures realize ironically system identical principle devised Lockheed engineers years ago full-size P-38 tracks drag links ends of four flaps two inboard two outboard extend rotate flaps just model does Also flaps full-size version powered 68 Model Aviation Full-Size Plans Available. See Page 170 LIP PART OPTS CS 4~FFAPAAAVAPAUAtAS 54-- cZzr 4OA 4WS iASR______ __________________ ______ I____________ -iji i ACTCJACASTAATAWB~-~ -ABAlSAAAT4 WA PASS ATIAT 5RAA _____________ APAWOSSAPI AASAAAAATSASW SAASTAAAAAABSTP TASWCAIASSESSION PA 5505 AWAS WISPAW ASATIOPASLOCKHEED F- 8L LIGHTNING CONTROLUNE IV. ________________________DESIGNED S DRAWN BY LI COL ABCS SIGLLY I-means jackscrew cable/pulley sys- has added advantage eliminating flut- work goes designing tern almost same model ter because flaps locked no matter scratch-building model such system works scale fashion what position theyre inseemed well worth P-38 won February 1988 69 Full-Size Plans Available . See Page 170 4PR0VREUP -LEESRRNS PORrOGORERT 000 JJEREp i I ER LnEEEVIRE 0 $ ROStErS R RUE-PEN AlE LENRIEEEERRVIERPER WURNSTOSRNN RREVRTRTROOLENECrOVEN1 ER VIEVY-ERITORPELR PULEl VOEPROLNTEP~- ft TOP ELEYE G OROS REVERE NE ER ERVETOR* REERRER RU-SW OR RTENNERSERORTEOJA TVREVLSETORRENT S0ERRV-~ EVUTSREVRESSOT SRVLEROO0ERVTS NNERL ROOt CIER PR OROERE ROE ERRrV VSS0ERTE________________________________________________ r ERRATREORENOR TESOLEOESSOSRI NoR pOSSoR RRRVOWWSSl P3VEVRERSRURR 7kRS t TORE ORTERNPRRLRESE-Trrg P4WE~0ORVUSSO oRPESENlTE OVETEVA P RRfl MEVa VEER RETREPTER_______YE EAR RRTS REEL MAE z REF RLERP&RTNE1 TERN FROM OAR SPREL P0500MI IK~ 7~P8LLIIN7 OEUiELI OSR 0RE0EE OVONS 00000A OREOROA SOES OORTONART MEN EEOEEEEEPLENOOR .aSLAWOPSEER00 LSOIOESKINED& OAAWPR BY LT CO JACK 9TOUY IS ROOROYSVE Ii RRVSRSTLEEOTO PERT 000RE 0 WOUR AR first place Open Sport Scale 1986 Nats Lake Charles heighten satisfaction 50th anniversary AMA 50th year model building addition P-38 awarded NASA Scale Flight Achievement award Control Line scoring highest num ber flight points Construction P-38 shown plans true scale no deviations scale necessary oaly conces sion youll need make set thrust line starboard engine about one-anda-half degrees right toward out70 Model Aviation RE CERNENFO EE ORE RR PERT NP SETS -l11E {ffThW0RE OEEO SENVOR UNE WOTEO TREOR RSS4 Left jackacrew servo cockpit nose section operates landing gear retract mechanism Shown door closed position Right three-line beilorank burled somewhere right angle beiicrank seen above part number 17 drawing Elevator pushrod reversal neceseary cause ieftlrlght belicrank chosen oper ates opposite direction thats required real challenge fowier flaps keep levers mechanisms side wing done original side flying circle compensate engine failure left engine should occur No offset rudders necessary plane balances perfectly added weights two de ground control box left plugs plane test landIng gear flap operations also fires glow plugs engine starting flight control handle has throt tle three-line operation battery switches operate flaps gear during flight February 1988 71 U lead-outs connect just outboard left maIn wheel well Du-Bro bail links left nacelle better display appearance connect wheel door hinges close Another set line guides pictured after wheels retract Making linkhere located near inboard wing tip ages work pain worth effort Located just behind cockpIt two levers operate torque rods con nected doors main landIng gear grees washout outer wing panels scale works perfectly model have yet make bad landing airplane Im sure its because wash out wings gives such good stall characteristics way build airplane right build jig board used piece 3A-in wood cut 12 x 54 must abso lutely flat warps Leave Continued page 160 front sections planked wing sheeted model now ready have tall sections added Author says pianked cowlings easIer make fibergiase cowls Watching tiaps come out go down required 450 what made model worth building time effort required FULL BODY PILOT KIT Contains pilot head hands boots helmet cap goggles full templates easy instruc tions Easy assemble finish Some simple sewing required Fully positionable tool #20E% scale #205-/ scale #204-A scale #203-% scale Price 895 995 1095 1695 DARNED GOOD AIRMEN w Lightest pilots available Lifelike vinyl latex rubber Sportsman Barnstormer Full Body Bust BuildBUST PILOT KIT Contains pilot head helmet sport cap goggles jacket Easy assemble finish Price $lOSi/c scale NEW 595 LAwing #106-V5 scale695 #105-/ scale 795 #104-/ scale me #103-V2 scale1495mple requfred JET PILOT KIT Pilot has molded let helmet Contains face mask osygen hose Estreme ly Realistic Weighs less /2 OZ Price #3OE-/ scale #307l/r scale 5 ORDERING INSTRUCTIONS See dealer first Order direct Add $100 shipping NYS residents add 7u/0 tan Send checs money order CODS OK Send $100 catalog See Dealer add Dollar direct order handling reissued mentioned earlier col umn has become reality Thanks efforts Cam Martin has sufficient interest shown three models F-8F Bearcat F-4U Corsair AD Skyraider Bob Smurthwaite produce limited number kits Price $36 $42 Corsair plus $2 shipping Anyone interested may contact Bob PO Box 2947 La Grande OR 97850 phone 503 963-0596 Exhaust deflector final correction igin plumbing-fitting exhaust deflector described August issue origi nal idea belonged Orin Humphrics efforts involved soldering elbow mount sol der joint failed readily because heat exhaust gas idea integral mount shown photographs described column belongs Stan Johnson Both Stan Orin have using latest design much success Navy Carrier Advisory Committee As chair man Navy Carrier Advisory Committee try keep members committee can represent areas Carrier events regularly flown Ron Haase has represented Flor ida past recently has inactive events has asked replaced committee Since have flown Southeast recently have address information readily avail able Carrier modelers area am taking opportunity ask volunteers active Carrier modeler Southeastern states interested serving Navy Carrier Advisory Committee please write tell Carrier activities will happy consider possible membership committee P-38/StoIIy Continued page 71 structure jig throughout construc tion process keeps thing lined up properly can move jig board out way want use workbench something else did build tail booms aft form er E- 11 until front part plane pretty well completed saves bench space allows easy access model assembly innards under way also allows work landing gear make necessary adjustments plane jig Mark formers ribs chassis parts centerlines shown plans As semble cockpit center-pod chassis formers making sure centerlines match Assemble two engine nacelle chassis parts formers Set three units up about six inches above jig board using A-in plywood supports tack-glued board clamped formers Using ruler ad just everything proper height mea suring top jig board centerline parts Wings Insert support x Ye-in spruce main wing spars wing ribs aluminum flap tracks should already tached respective ribs x -in wing leading edge Note wing rib centerlines have two degrees positive incidence relation master aircraft centerline Starting near mid point outer wing panels positive incidence reduced build washout wing Once wing ribs lined up want add /8 x A-in /t6 x /16-in spruce stringers top bot tom wing ribs Glue up lock everything place Fowler flaps system Build flap sys tem following plans photos making sure no binding four flaps works true easy Multistrand 012-in control line wire used connect flaps jackscrew servo flaps will go full up full down position seven eight seconds pretty close scale operating time Landing gears parts landing gear system detailed plans should machined accurately possible using drill press operations jigsaw small lathe also come handy re moved limit switches landing gear jackscrew servo relocated spot could easily adjusted precisely control up down limits 115 SCALE W Golden Era biplanes will come alive smooth flying eay building flying machine Its big enough catch attention yet small enough use everyday glow engine 2657 N E t88rn SIred Marni F orica 33180 Telephone 935-1436 KIT FEATURES Machined die cut balsa select plywood hardwoods Hardware package Pre-bent landing gear cabine wire Vacuum formed ABS cowl aleleron caps gas cover Mylar decals Full size plans instruction book including isometric drawings SPECIFICATIONS 1/5 Scale 72in Span Area 1530 sqin 4 channel Radio 61-12 Engine Weight 12 lbs Fuse 54 1/2 160 Model Aviation Item Byro-Jet Performance Pkg w/Rossi 90 Rossi 90 w/Header Pipe New Custom Tuned Muffler Engine Mount #9 retrofit 6130099$54992 613009838799 59301007071 259 95 * 4950* 593009435712500* *Add $300 shipping per item AK HI overseas call shipping costs Prices subject change notice landing gear travel door-closing mechanism guaranteed drive sane right out hobby see doors open close fullsize plane youll glad went trouble sure use balance spring main wheels shown plans take load off jackscrew ser vo save wear tear rest project routine model building covered detail drawings tail section added again leveling up centerlines engine nacelles centerlines tail booms flying P-38 modified J Rob erts three-line handle shown photo adding toggle switches flap landing gear control center switch selects between either flap land ing gear function also works off switch whole system 021-in multistrand control lines braided enameled copper magnet wire carry current because lines themselves have high resistance would require 30 40 volts get enough current through oper ate servos Although magnet wire self insulated wiped thin coating clear silicone caulking material further sulate bond wire lines main landing gear wheels fitted drum brakes activated ap plying full down elevator plane taxiing Locate planes ground test box jack convenient place choice box plugs starboard supercharger neatly hides six pin plugholes box plugged plane can operate landing gear flaps out having control lines hooked up box also has switch activates glow plug engine starting Just throw switch proper engine hit electric starter simple can Taken whole complicated model incorporates reproduces some inctricate systems fullscale P-38 aircraft duplicate retract able landing gear Fowler flap systems faithfully no easy task Scale model building its results count project worth effort itself its exercise problem solving may yield insights can applied other modeling problems Thats model builders art advances step step After routinely doing things model ing today would have difficult-toimpossible just 20 years ago some features model help move Control Line Scale modeling notch forward will happy dint skilled pa tient efforts youve brought life P-38 rewards lot fun flying eight pounds plus its definitely going loop does fly like full-scale heavy fighter plane Feed power steadily takeoff after threequarters circle shes built up enough speed come off ground just slight nudge up elevator Hit gear switch can feel become less nose-heavy wheels retract rear youre really off running doors close landing throttle back half power get flaps down just let ease down As soon main gear touches down nose lowers youve stopped flyingno bounce no fuss Thats way its supposed Keep em flying Scale documentation P-38 easily obtained hobby shops aviation sections bookstores libraries other scale documentation sources P-38 modeled after display Air Force Museum Dayton Ohio FF Duration/Murphy Continued page 73 install Occasionally will get bad Good thinking Eddy Well Ill close Aid Station now reopen again next column hope will two months now Indoor Rubber Speed Should reside lo cale winter months terminate outdoor flying contacts other Free Flighters will take place monthly club meetingsand must look activities hold modeling interests until February 1988 161 IMPROVED ALSN* B Ljrjet 140, 44 44340 erformance Rossi 90 has Arrived long-awaited Rossi 90 has undergone extensive testing under Research Personnels direction has passed level flying colors Running 20% nitromethane fuel Rossi 90 powered Byro-Jet equipped newly designed Tuned Muffler turning steady 20400 rpm producing much 2 pounds thrust 05 77. increase weight 5 ounces All-in-all new Rossi 90 produces same brute power previously experienced 81 can expected same Rossi reputation solid trouble free reliable operation obvious new 90 Designed specifically Byro-Jet Ducted Fan items necessary retrofit existing Byro-Jet System equipped OS 77 Rossi 81 new Engine Mount Tuned Muffler Rossi 90 Engine have Byron Originals ducted fan jet flying Byro-Jet powered model sort have looking power thrust Rossi 90 just ticket SPECIFICATIONS RPM20400Fan Diameter Static Thrust13A-13Total Performance Pkg Shroud Diameter OD7 Weight2 lb 7 oz Recommended Fuel ByronOriginals udes Rossi 90Header Pipe Performance Blended Fuel 20%Byro-Jet Fan Custom Tuned NitromethaneMuffler Pipe Coupler Mounting Bracket Hardware Available Exclusively from. Byron Originals Inc PO Box 279 Ida Grove IA 51445 Phone 712 364-3165 Telex 293595 MIDWEST IDAG Order Information Order No Retail Factory $32995*
Edition: Model Aviation - 1988/02
Page Numbers: 66, 67, 68, 69, 70, 71, 160, 161
C cura STUDY Fowler Flaps would have made equally appropriate title article Fowler flaps P-38 originat ed about same time two go hand-in-hand aviation history Moreover use Fowler Flaps P-38 what first attracted airplane led investigate could duplicate system model Several years ago doing some re search Air Force Museum WrightPatterson AFB came across picture P-38 landing configuration Fowler landing flaps full down out position Fowler flaps thought incredulously airplane designed 1937 peri od Air Corps still flying fabric-covered planes ad vanced fighter day P-26 Peashooter idea Fowler flaps intrigu ing vision Scale model P 38 floating like butterfly landing Fowler flaps extended enticed straight drawing board However five months later after countless hours spent 66 Model Aviation mo Top beauty finished project belies technical prowess required make chanics Fowler flaps retracts work Above author winning P-38 Lake Charles Nats 1986 Model detailed after P-38 display Air Force Museum Left The fuselage center section chassis farmers Note aluminum flap mechanism attached %2 ply chassis sides Right Fowler Flap mechanisms attached fuselage center section Using plans Its easy duplicate what took hours first design Left During early stages construction P-38 rests jig board see text its construction Centerlines trued up wing washout built stage Right Basic framework now taking shape its time test out mechanical operation ground test box connected electrical system flaps landing gear operated check binding linkages erratic operation sketching drawing puzzling construct ing mock-ups just general conceptualiz ing back square problem Vd run Fowler flap installa tion P-38 clean work ing mechanisms linkages inside wing Unlike todays planes jetliners have kinds pods protuberances exterior surface wing cover up jackscrews linkages designers P-38 managed get everything enclosed within wing cutting down drag increasing overall efficiency plane Now really hooked knew Id have research Fowler flap try discover did unobtru sively full-size P-38 What kind crazy linkages did dream up move flap out wing position hind trailing edge same time rotate down 450 designed man named Fowler Yes learned indeed man named Fowler designer came Lockheed Stearman Hammond Airplane Company au tunin 1935 Lockheeds chief engineer time Hall Hibbard liked Fowlers flap idea well convinced Lockheedss patent counsel underwrite patent Lockheed Model 14 Super Electra transport selected test bed Fowlers flap system first flight Model 14 Fowler flaps made January 1937the same month coinci dentally Air Corps put out its bid specifications new type pursuit plane Up time Lockheed involved military pursuit/combat planes company jumped both feet result its Model Starting left working counterclockwise see Fowler flap mechanism go through its cycle drag links follow tracks cut aluminum sheeting allowing model accu rately duplicate down out movement flaps full scale P-38 Four sets assemblies attached appropriate ribs see plans actuate four flaps plane February 1988 67 - -~0Sss0 ---_______ E00TR000CKSCRE00M0 0S0ESAS1SST~0s ROSOC EONS COCSpT,0CEUC0 PAHTEOSC%0 L__ IT MACTILT VQ VIEW ESS CEIV COAWS SOCSF TbAE0 005 H0SSL 00Scoooso $TACSE 0& HEA SO/0E0XOC0XFWSEOEC55-oss -o EOTEEo SSO5E ~f i-~ TG 00i ESOSSpS50500000N ES6SLESOSSOEXEEop SC 0 ~L70I DL7 CARSE 00005 FROM SAISAFROM RNMET OJODEES ONE 0575500050ELEOATOE flOMC SACS 0000I0SS COWLING TARTS6005550[ 000 ES SFI55ERS LOCKHEED P-38L LIGHTNING 5I00 0AoSSCAT 0CONTROLUNESCALE lV 1S ______________________________ 5 0000 500* 0o PLODESIGNED & DRAWN BY LT CXL JACK STOLLY DALLAS TEXAS ___________________ SMUEWAitiSHEETS SF5 22 designated XP-38 Air Corps Fowler flap just novations incorporated new design Construction XP-38 began July 1938 progressed rapidly though new plane loaded kinds firsts addition Fowler flaps first airplane have butt-jointed flush-riveted exterior surfaces turbo superchargers first make extensive use stainless steel first twin en gine counter-rotating propellers completed within seven months tak en March Field Riverside CA its first flight January 1939 Just few weeks later February 11 overanx ious Air Corps sent its new machine record-breaking cross-country flight March Field Mitchell Field Long Island NYunfortunately have crash landing Despite awkward beginning P-38 went become versatile fighter plane World War ILbut thats whole different story Fowler flap licensed other air craft companies used such fa mous planes Consolidated B-24 Lockheed Constellation also known Connie Getting back problem clean stallation Fowler flaps model P-38 did eventually come up solution shown detail plans accompany ing pictures realize ironically system identical principle devised Lockheed engineers years ago full-size P-38 tracks drag links ends of four flaps two inboard two outboard extend rotate flaps just model does Also flaps full-size version powered 68 Model Aviation Full-Size Plans Available. See Page 170 LIP PART OPTS CS 4~FFAPAAAVAPAUAtAS 54-- cZzr 4OA 4WS iASR______ __________________ ______ I____________ -iji i ACTCJACASTAATAWB~-~ -ABAlSAAAT4 WA PASS ATIAT 5RAA _____________ APAWOSSAPI AASAAAAATSASW SAASTAAAAAABSTP TASWCAIASSESSION PA 5505 AWAS WISPAW ASATIOPASLOCKHEED F- 8L LIGHTNING CONTROLUNE IV. ________________________DESIGNED S DRAWN BY LI COL ABCS SIGLLY I-means jackscrew cable/pulley sys- has added advantage eliminating flut- work goes designing tern almost same model ter because flaps locked no matter scratch-building model such system works scale fashion what position theyre inseemed well worth P-38 won February 1988 69 Full-Size Plans Available . See Page 170 4PR0VREUP -LEESRRNS PORrOGORERT 000 JJEREp i I ER LnEEEVIRE 0 $ ROStErS R RUE-PEN AlE LENRIEEEERRVIERPER WURNSTOSRNN RREVRTRTROOLENECrOVEN1 ER VIEVY-ERITORPELR PULEl VOEPROLNTEP~- ft TOP ELEYE G OROS REVERE NE ER ERVETOR* REERRER RU-SW OR RTENNERSERORTEOJA TVREVLSETORRENT S0ERRV-~ EVUTSREVRESSOT SRVLEROO0ERVTS NNERL ROOt CIER PR OROERE ROE ERRrV VSS0ERTE________________________________________________ r ERRATREORENOR TESOLEOESSOSRI NoR pOSSoR RRRVOWWSSl P3VEVRERSRURR 7kRS t TORE ORTERNPRRLRESE-Trrg P4WE~0ORVUSSO oRPESENlTE OVETEVA P RRfl MEVa VEER RETREPTER_______YE EAR RRTS REEL MAE z REF RLERP&RTNE1 TERN FROM OAR SPREL P0500MI IK~ 7~P8LLIIN7 OEUiELI OSR 0RE0EE OVONS 00000A OREOROA SOES OORTONART MEN EEOEEEEEPLENOOR .aSLAWOPSEER00 LSOIOESKINED& OAAWPR BY LT CO JACK 9TOUY IS ROOROYSVE Ii RRVSRSTLEEOTO PERT 000RE 0 WOUR AR first place Open Sport Scale 1986 Nats Lake Charles heighten satisfaction 50th anniversary AMA 50th year model building addition P-38 awarded NASA Scale Flight Achievement award Control Line scoring highest num ber flight points Construction P-38 shown plans true scale no deviations scale necessary oaly conces sion youll need make set thrust line starboard engine about one-anda-half degrees right toward out70 Model Aviation RE CERNENFO EE ORE RR PERT NP SETS -l11E {ffThW0RE OEEO SENVOR UNE WOTEO TREOR RSS4 Left jackacrew servo cockpit nose section operates landing gear retract mechanism Shown door closed position Right three-line beilorank burled somewhere right angle beiicrank seen above part number 17 drawing Elevator pushrod reversal neceseary cause ieftlrlght belicrank chosen oper ates opposite direction thats required real challenge fowier flaps keep levers mechanisms side wing done original side flying circle compensate engine failure left engine should occur No offset rudders necessary plane balances perfectly added weights two de ground control box left plugs plane test landIng gear flap operations also fires glow plugs engine starting flight control handle has throt tle three-line operation battery switches operate flaps gear during flight February 1988 71 U lead-outs connect just outboard left maIn wheel well Du-Bro bail links left nacelle better display appearance connect wheel door hinges close Another set line guides pictured after wheels retract Making linkhere located near inboard wing tip ages work pain worth effort Located just behind cockpIt two levers operate torque rods con nected doors main landIng gear grees washout outer wing panels scale works perfectly model have yet make bad landing airplane Im sure its because wash out wings gives such good stall characteristics way build airplane right build jig board used piece 3A-in wood cut 12 x 54 must abso lutely flat warps Leave Continued page 160 front sections planked wing sheeted model now ready have tall sections added Author says pianked cowlings easIer make fibergiase cowls Watching tiaps come out go down required 450 what made model worth building time effort required FULL BODY PILOT KIT Contains pilot head hands boots helmet cap goggles full templates easy instruc tions Easy assemble finish Some simple sewing required Fully positionable tool #20E% scale #205-/ scale #204-A scale #203-% scale Price 895 995 1095 1695 DARNED GOOD AIRMEN w Lightest pilots available Lifelike vinyl latex rubber Sportsman Barnstormer Full Body Bust BuildBUST PILOT KIT Contains pilot head helmet sport cap goggles jacket Easy assemble finish Price $lOSi/c scale NEW 595 LAwing #106-V5 scale695 #105-/ scale 795 #104-/ scale me #103-V2 scale1495mple requfred JET PILOT KIT Pilot has molded let helmet Contains face mask osygen hose Estreme ly Realistic Weighs less /2 OZ Price #3OE-/ scale #307l/r scale 5 ORDERING INSTRUCTIONS See dealer first Order direct Add $100 shipping NYS residents add 7u/0 tan Send checs money order CODS OK Send $100 catalog See Dealer add Dollar direct order handling reissued mentioned earlier col umn has become reality Thanks efforts Cam Martin has sufficient interest shown three models F-8F Bearcat F-4U Corsair AD Skyraider Bob Smurthwaite produce limited number kits Price $36 $42 Corsair plus $2 shipping Anyone interested may contact Bob PO Box 2947 La Grande OR 97850 phone 503 963-0596 Exhaust deflector final correction igin plumbing-fitting exhaust deflector described August issue origi nal idea belonged Orin Humphrics efforts involved soldering elbow mount sol der joint failed readily because heat exhaust gas idea integral mount shown photographs described column belongs Stan Johnson Both Stan Orin have using latest design much success Navy Carrier Advisory Committee As chair man Navy Carrier Advisory Committee try keep members committee can represent areas Carrier events regularly flown Ron Haase has represented Flor ida past recently has inactive events has asked replaced committee Since have flown Southeast recently have address information readily avail able Carrier modelers area am taking opportunity ask volunteers active Carrier modeler Southeastern states interested serving Navy Carrier Advisory Committee please write tell Carrier activities will happy consider possible membership committee P-38/StoIIy Continued page 71 structure jig throughout construc tion process keeps thing lined up properly can move jig board out way want use workbench something else did build tail booms aft form er E- 11 until front part plane pretty well completed saves bench space allows easy access model assembly innards under way also allows work landing gear make necessary adjustments plane jig Mark formers ribs chassis parts centerlines shown plans As semble cockpit center-pod chassis formers making sure centerlines match Assemble two engine nacelle chassis parts formers Set three units up about six inches above jig board using A-in plywood supports tack-glued board clamped formers Using ruler ad just everything proper height mea suring top jig board centerline parts Wings Insert support x Ye-in spruce main wing spars wing ribs aluminum flap tracks should already tached respective ribs x -in wing leading edge Note wing rib centerlines have two degrees positive incidence relation master aircraft centerline Starting near mid point outer wing panels positive incidence reduced build washout wing Once wing ribs lined up want add /8 x A-in /t6 x /16-in spruce stringers top bot tom wing ribs Glue up lock everything place Fowler flaps system Build flap sys tem following plans photos making sure no binding four flaps works true easy Multistrand 012-in control line wire used connect flaps jackscrew servo flaps will go full up full down position seven eight seconds pretty close scale operating time Landing gears parts landing gear system detailed plans should machined accurately possible using drill press operations jigsaw small lathe also come handy re moved limit switches landing gear jackscrew servo relocated spot could easily adjusted precisely control up down limits 115 SCALE W Golden Era biplanes will come alive smooth flying eay building flying machine Its big enough catch attention yet small enough use everyday glow engine 2657 N E t88rn SIred Marni F orica 33180 Telephone 935-1436 KIT FEATURES Machined die cut balsa select plywood hardwoods Hardware package Pre-bent landing gear cabine wire Vacuum formed ABS cowl aleleron caps gas cover Mylar decals Full size plans instruction book including isometric drawings SPECIFICATIONS 1/5 Scale 72in Span Area 1530 sqin 4 channel Radio 61-12 Engine Weight 12 lbs Fuse 54 1/2 160 Model Aviation Item Byro-Jet Performance Pkg w/Rossi 90 Rossi 90 w/Header Pipe New Custom Tuned Muffler Engine Mount #9 retrofit 6130099$54992 613009838799 59301007071 259 95 * 4950* 593009435712500* *Add $300 shipping per item AK HI overseas call shipping costs Prices subject change notice landing gear travel door-closing mechanism guaranteed drive sane right out hobby see doors open close fullsize plane youll glad went trouble sure use balance spring main wheels shown plans take load off jackscrew ser vo save wear tear rest project routine model building covered detail drawings tail section added again leveling up centerlines engine nacelles centerlines tail booms flying P-38 modified J Rob erts three-line handle shown photo adding toggle switches flap landing gear control center switch selects between either flap land ing gear function also works off switch whole system 021-in multistrand control lines braided enameled copper magnet wire carry current because lines themselves have high resistance would require 30 40 volts get enough current through oper ate servos Although magnet wire self insulated wiped thin coating clear silicone caulking material further sulate bond wire lines main landing gear wheels fitted drum brakes activated ap plying full down elevator plane taxiing Locate planes ground test box jack convenient place choice box plugs starboard supercharger neatly hides six pin plugholes box plugged plane can operate landing gear flaps out having control lines hooked up box also has switch activates glow plug engine starting Just throw switch proper engine hit electric starter simple can Taken whole complicated model incorporates reproduces some inctricate systems fullscale P-38 aircraft duplicate retract able landing gear Fowler flap systems faithfully no easy task Scale model building its results count project worth effort itself its exercise problem solving may yield insights can applied other modeling problems Thats model builders art advances step step After routinely doing things model ing today would have difficult-toimpossible just 20 years ago some features model help move Control Line Scale modeling notch forward will happy dint skilled pa tient efforts youve brought life P-38 rewards lot fun flying eight pounds plus its definitely going loop does fly like full-scale heavy fighter plane Feed power steadily takeoff after threequarters circle shes built up enough speed come off ground just slight nudge up elevator Hit gear switch can feel become less nose-heavy wheels retract rear youre really off running doors close landing throttle back half power get flaps down just let ease down As soon main gear touches down nose lowers youve stopped flyingno bounce no fuss Thats way its supposed Keep em flying Scale documentation P-38 easily obtained hobby shops aviation sections bookstores libraries other scale documentation sources P-38 modeled after display Air Force Museum Dayton Ohio FF Duration/Murphy Continued page 73 install Occasionally will get bad Good thinking Eddy Well Ill close Aid Station now reopen again next column hope will two months now Indoor Rubber Speed Should reside lo cale winter months terminate outdoor flying contacts other Free Flighters will take place monthly club meetingsand must look activities hold modeling interests until February 1988 161 IMPROVED ALSN* B Ljrjet 140, 44 44340 erformance Rossi 90 has Arrived long-awaited Rossi 90 has undergone extensive testing under Research Personnels direction has passed level flying colors Running 20% nitromethane fuel Rossi 90 powered Byro-Jet equipped newly designed Tuned Muffler turning steady 20400 rpm producing much 2 pounds thrust 05 77. increase weight 5 ounces All-in-all new Rossi 90 produces same brute power previously experienced 81 can expected same Rossi reputation solid trouble free reliable operation obvious new 90 Designed specifically Byro-Jet Ducted Fan items necessary retrofit existing Byro-Jet System equipped OS 77 Rossi 81 new Engine Mount Tuned Muffler Rossi 90 Engine have Byron Originals ducted fan jet flying Byro-Jet powered model sort have looking power thrust Rossi 90 just ticket SPECIFICATIONS RPM20400Fan Diameter Static Thrust13A-13Total Performance Pkg Shroud Diameter OD7 Weight2 lb 7 oz Recommended Fuel ByronOriginals udes Rossi 90Header Pipe Performance Blended Fuel 20%Byro-Jet Fan Custom Tuned NitromethaneMuffler Pipe Coupler Mounting Bracket Hardware Available Exclusively from. Byron Originals Inc PO Box 279 Ida Grove IA 51445 Phone 712 364-3165 Telex 293595 MIDWEST IDAG Order Information Order No Retail Factory $32995*
Edition: Model Aviation - 1988/02
Page Numbers: 66, 67, 68, 69, 70, 71, 160, 161
C cura STUDY Fowler Flaps would have made equally appropriate title article Fowler flaps P-38 originat ed about same time two go hand-in-hand aviation history Moreover use Fowler Flaps P-38 what first attracted airplane led investigate could duplicate system model Several years ago doing some re search Air Force Museum WrightPatterson AFB came across picture P-38 landing configuration Fowler landing flaps full down out position Fowler flaps thought incredulously airplane designed 1937 peri od Air Corps still flying fabric-covered planes ad vanced fighter day P-26 Peashooter idea Fowler flaps intrigu ing vision Scale model P 38 floating like butterfly landing Fowler flaps extended enticed straight drawing board However five months later after countless hours spent 66 Model Aviation mo Top beauty finished project belies technical prowess required make chanics Fowler flaps retracts work Above author winning P-38 Lake Charles Nats 1986 Model detailed after P-38 display Air Force Museum Left The fuselage center section chassis farmers Note aluminum flap mechanism attached %2 ply chassis sides Right Fowler Flap mechanisms attached fuselage center section Using plans Its easy duplicate what took hours first design Left During early stages construction P-38 rests jig board see text its construction Centerlines trued up wing washout built stage Right Basic framework now taking shape its time test out mechanical operation ground test box connected electrical system flaps landing gear operated check binding linkages erratic operation sketching drawing puzzling construct ing mock-ups just general conceptualiz ing back square problem Vd run Fowler flap installa tion P-38 clean work ing mechanisms linkages inside wing Unlike todays planes jetliners have kinds pods protuberances exterior surface wing cover up jackscrews linkages designers P-38 managed get everything enclosed within wing cutting down drag increasing overall efficiency plane Now really hooked knew Id have research Fowler flap try discover did unobtru sively full-size P-38 What kind crazy linkages did dream up move flap out wing position hind trailing edge same time rotate down 450 designed man named Fowler Yes learned indeed man named Fowler designer came Lockheed Stearman Hammond Airplane Company au tunin 1935 Lockheeds chief engineer time Hall Hibbard liked Fowlers flap idea well convinced Lockheedss patent counsel underwrite patent Lockheed Model 14 Super Electra transport selected test bed Fowlers flap system first flight Model 14 Fowler flaps made January 1937the same month coinci dentally Air Corps put out its bid specifications new type pursuit plane Up time Lockheed involved military pursuit/combat planes company jumped both feet result its Model Starting left working counterclockwise see Fowler flap mechanism go through its cycle drag links follow tracks cut aluminum sheeting allowing model accu rately duplicate down out movement flaps full scale P-38 Four sets assemblies attached appropriate ribs see plans actuate four flaps plane February 1988 67 - -~0Sss0 ---_______ E00TR000CKSCRE00M0 0S0ESAS1SST~0s ROSOC EONS COCSpT,0CEUC0 PAHTEOSC%0 L__ IT MACTILT VQ VIEW ESS CEIV COAWS SOCSF TbAE0 005 H0SSL 00Scoooso $TACSE 0& HEA SO/0E0XOC0XFWSEOEC55-oss -o EOTEEo SSO5E ~f i-~ TG 00i ESOSSpS50500000N ES6SLESOSSOEXEEop SC 0 ~L70I DL7 CARSE 00005 FROM SAISAFROM RNMET OJODEES ONE 0575500050ELEOATOE flOMC SACS 0000I0SS COWLING TARTS6005550[ 000 ES SFI55ERS LOCKHEED P-38L LIGHTNING 5I00 0AoSSCAT 0CONTROLUNESCALE lV 1S ______________________________ 5 0000 500* 0o PLODESIGNED & DRAWN BY LT CXL JACK STOLLY DALLAS TEXAS ___________________ SMUEWAitiSHEETS SF5 22 designated XP-38 Air Corps Fowler flap just novations incorporated new design Construction XP-38 began July 1938 progressed rapidly though new plane loaded kinds firsts addition Fowler flaps first airplane have butt-jointed flush-riveted exterior surfaces turbo superchargers first make extensive use stainless steel first twin en gine counter-rotating propellers completed within seven months tak en March Field Riverside CA its first flight January 1939 Just few weeks later February 11 overanx ious Air Corps sent its new machine record-breaking cross-country flight March Field Mitchell Field Long Island NYunfortunately have crash landing Despite awkward beginning P-38 went become versatile fighter plane World War ILbut thats whole different story Fowler flap licensed other air craft companies used such fa mous planes Consolidated B-24 Lockheed Constellation also known Connie Getting back problem clean stallation Fowler flaps model P-38 did eventually come up solution shown detail plans accompany ing pictures realize ironically system identical principle devised Lockheed engineers years ago full-size P-38 tracks drag links ends of four flaps two inboard two outboard extend rotate flaps just model does Also flaps full-size version powered 68 Model Aviation Full-Size Plans Available. See Page 170 LIP PART OPTS CS 4~FFAPAAAVAPAUAtAS 54-- cZzr 4OA 4WS iASR______ __________________ ______ I____________ -iji i ACTCJACASTAATAWB~-~ -ABAlSAAAT4 WA PASS ATIAT 5RAA _____________ APAWOSSAPI AASAAAAATSASW SAASTAAAAAABSTP TASWCAIASSESSION PA 5505 AWAS WISPAW ASATIOPASLOCKHEED F- 8L LIGHTNING CONTROLUNE IV. ________________________DESIGNED S DRAWN BY LI COL ABCS SIGLLY I-means jackscrew cable/pulley sys- has added advantage eliminating flut- work goes designing tern almost same model ter because flaps locked no matter scratch-building model such system works scale fashion what position theyre inseemed well worth P-38 won February 1988 69 Full-Size Plans Available . See Page 170 4PR0VREUP -LEESRRNS PORrOGORERT 000 JJEREp i I ER LnEEEVIRE 0 $ ROStErS R RUE-PEN AlE LENRIEEEERRVIERPER WURNSTOSRNN RREVRTRTROOLENECrOVEN1 ER VIEVY-ERITORPELR PULEl VOEPROLNTEP~- ft TOP ELEYE G OROS REVERE NE ER ERVETOR* REERRER RU-SW OR RTENNERSERORTEOJA TVREVLSETORRENT S0ERRV-~ EVUTSREVRESSOT SRVLEROO0ERVTS NNERL ROOt CIER PR OROERE ROE ERRrV VSS0ERTE________________________________________________ r ERRATREORENOR TESOLEOESSOSRI NoR pOSSoR RRRVOWWSSl P3VEVRERSRURR 7kRS t TORE ORTERNPRRLRESE-Trrg P4WE~0ORVUSSO oRPESENlTE OVETEVA P RRfl MEVa VEER RETREPTER_______YE EAR RRTS REEL MAE z REF RLERP&RTNE1 TERN FROM OAR SPREL P0500MI IK~ 7~P8LLIIN7 OEUiELI OSR 0RE0EE OVONS 00000A OREOROA SOES OORTONART MEN EEOEEEEEPLENOOR .aSLAWOPSEER00 LSOIOESKINED& OAAWPR BY LT CO JACK 9TOUY IS ROOROYSVE Ii RRVSRSTLEEOTO PERT 000RE 0 WOUR AR first place Open Sport Scale 1986 Nats Lake Charles heighten satisfaction 50th anniversary AMA 50th year model building addition P-38 awarded NASA Scale Flight Achievement award Control Line scoring highest num ber flight points Construction P-38 shown plans true scale no deviations scale necessary oaly conces sion youll need make set thrust line starboard engine about one-anda-half degrees right toward out70 Model Aviation RE CERNENFO EE ORE RR PERT NP SETS -l11E {ffThW0RE OEEO SENVOR UNE WOTEO TREOR RSS4 Left jackacrew servo cockpit nose section operates landing gear retract mechanism Shown door closed position Right three-line beilorank burled somewhere right angle beiicrank seen above part number 17 drawing Elevator pushrod reversal neceseary cause ieftlrlght belicrank chosen oper ates opposite direction thats required real challenge fowier flaps keep levers mechanisms side wing done original side flying circle compensate engine failure left engine should occur No offset rudders necessary plane balances perfectly added weights two de ground control box left plugs plane test landIng gear flap operations also fires glow plugs engine starting flight control handle has throt tle three-line operation battery switches operate flaps gear during flight February 1988 71 U lead-outs connect just outboard left maIn wheel well Du-Bro bail links left nacelle better display appearance connect wheel door hinges close Another set line guides pictured after wheels retract Making linkhere located near inboard wing tip ages work pain worth effort Located just behind cockpIt two levers operate torque rods con nected doors main landIng gear grees washout outer wing panels scale works perfectly model have yet make bad landing airplane Im sure its because wash out wings gives such good stall characteristics way build airplane right build jig board used piece 3A-in wood cut 12 x 54 must abso lutely flat warps Leave Continued page 160 front sections planked wing sheeted model now ready have tall sections added Author says pianked cowlings easIer make fibergiase cowls Watching tiaps come out go down required 450 what made model worth building time effort required FULL BODY PILOT KIT Contains pilot head hands boots helmet cap goggles full templates easy instruc tions Easy assemble finish Some simple sewing required Fully positionable tool #20E% scale #205-/ scale #204-A scale #203-% scale Price 895 995 1095 1695 DARNED GOOD AIRMEN w Lightest pilots available Lifelike vinyl latex rubber Sportsman Barnstormer Full Body Bust BuildBUST PILOT KIT Contains pilot head helmet sport cap goggles jacket Easy assemble finish Price $lOSi/c scale NEW 595 LAwing #106-V5 scale695 #105-/ scale 795 #104-/ scale me #103-V2 scale1495mple requfred JET PILOT KIT Pilot has molded let helmet Contains face mask osygen hose Estreme ly Realistic Weighs less /2 OZ Price #3OE-/ scale #307l/r scale 5 ORDERING INSTRUCTIONS See dealer first Order direct Add $100 shipping NYS residents add 7u/0 tan Send checs money order CODS OK Send $100 catalog See Dealer add Dollar direct order handling reissued mentioned earlier col umn has become reality Thanks efforts Cam Martin has sufficient interest shown three models F-8F Bearcat F-4U Corsair AD Skyraider Bob Smurthwaite produce limited number kits Price $36 $42 Corsair plus $2 shipping Anyone interested may contact Bob PO Box 2947 La Grande OR 97850 phone 503 963-0596 Exhaust deflector final correction igin plumbing-fitting exhaust deflector described August issue origi nal idea belonged Orin Humphrics efforts involved soldering elbow mount sol der joint failed readily because heat exhaust gas idea integral mount shown photographs described column belongs Stan Johnson Both Stan Orin have using latest design much success Navy Carrier Advisory Committee As chair man Navy Carrier Advisory Committee try keep members committee can represent areas Carrier events regularly flown Ron Haase has represented Flor ida past recently has inactive events has asked replaced committee Since have flown Southeast recently have address information readily avail able Carrier modelers area am taking opportunity ask volunteers active Carrier modeler Southeastern states interested serving Navy Carrier Advisory Committee please write tell Carrier activities will happy consider possible membership committee P-38/StoIIy Continued page 71 structure jig throughout construc tion process keeps thing lined up properly can move jig board out way want use workbench something else did build tail booms aft form er E- 11 until front part plane pretty well completed saves bench space allows easy access model assembly innards under way also allows work landing gear make necessary adjustments plane jig Mark formers ribs chassis parts centerlines shown plans As semble cockpit center-pod chassis formers making sure centerlines match Assemble two engine nacelle chassis parts formers Set three units up about six inches above jig board using A-in plywood supports tack-glued board clamped formers Using ruler ad just everything proper height mea suring top jig board centerline parts Wings Insert support x Ye-in spruce main wing spars wing ribs aluminum flap tracks should already tached respective ribs x -in wing leading edge Note wing rib centerlines have two degrees positive incidence relation master aircraft centerline Starting near mid point outer wing panels positive incidence reduced build washout wing Once wing ribs lined up want add /8 x A-in /t6 x /16-in spruce stringers top bot tom wing ribs Glue up lock everything place Fowler flaps system Build flap sys tem following plans photos making sure no binding four flaps works true easy Multistrand 012-in control line wire used connect flaps jackscrew servo flaps will go full up full down position seven eight seconds pretty close scale operating time Landing gears parts landing gear system detailed plans should machined accurately possible using drill press operations jigsaw small lathe also come handy re moved limit switches landing gear jackscrew servo relocated spot could easily adjusted precisely control up down limits 115 SCALE W Golden Era biplanes will come alive smooth flying eay building flying machine Its big enough catch attention yet small enough use everyday glow engine 2657 N E t88rn SIred Marni F orica 33180 Telephone 935-1436 KIT FEATURES Machined die cut balsa select plywood hardwoods Hardware package Pre-bent landing gear cabine wire Vacuum formed ABS cowl aleleron caps gas cover Mylar decals Full size plans instruction book including isometric drawings SPECIFICATIONS 1/5 Scale 72in Span Area 1530 sqin 4 channel Radio 61-12 Engine Weight 12 lbs Fuse 54 1/2 160 Model Aviation Item Byro-Jet Performance Pkg w/Rossi 90 Rossi 90 w/Header Pipe New Custom Tuned Muffler Engine Mount #9 retrofit 6130099$54992 613009838799 59301007071 259 95 * 4950* 593009435712500* *Add $300 shipping per item AK HI overseas call shipping costs Prices subject change notice landing gear travel door-closing mechanism guaranteed drive sane right out hobby see doors open close fullsize plane youll glad went trouble sure use balance spring main wheels shown plans take load off jackscrew ser vo save wear tear rest project routine model building covered detail drawings tail section added again leveling up centerlines engine nacelles centerlines tail booms flying P-38 modified J Rob erts three-line handle shown photo adding toggle switches flap landing gear control center switch selects between either flap land ing gear function also works off switch whole system 021-in multistrand control lines braided enameled copper magnet wire carry current because lines themselves have high resistance would require 30 40 volts get enough current through oper ate servos Although magnet wire self insulated wiped thin coating clear silicone caulking material further sulate bond wire lines main landing gear wheels fitted drum brakes activated ap plying full down elevator plane taxiing Locate planes ground test box jack convenient place choice box plugs starboard supercharger neatly hides six pin plugholes box plugged plane can operate landing gear flaps out having control lines hooked up box also has switch activates glow plug engine starting Just throw switch proper engine hit electric starter simple can Taken whole complicated model incorporates reproduces some inctricate systems fullscale P-38 aircraft duplicate retract able landing gear Fowler flap systems faithfully no easy task Scale model building its results count project worth effort itself its exercise problem solving may yield insights can applied other modeling problems Thats model builders art advances step step After routinely doing things model ing today would have difficult-toimpossible just 20 years ago some features model help move Control Line Scale modeling notch forward will happy dint skilled pa tient efforts youve brought life P-38 rewards lot fun flying eight pounds plus its definitely going loop does fly like full-scale heavy fighter plane Feed power steadily takeoff after threequarters circle shes built up enough speed come off ground just slight nudge up elevator Hit gear switch can feel become less nose-heavy wheels retract rear youre really off running doors close landing throttle back half power get flaps down just let ease down As soon main gear touches down nose lowers youve stopped flyingno bounce no fuss Thats way its supposed Keep em flying Scale documentation P-38 easily obtained hobby shops aviation sections bookstores libraries other scale documentation sources P-38 modeled after display Air Force Museum Dayton Ohio FF Duration/Murphy Continued page 73 install Occasionally will get bad Good thinking Eddy Well Ill close Aid Station now reopen again next column hope will two months now Indoor Rubber Speed Should reside lo cale winter months terminate outdoor flying contacts other Free Flighters will take place monthly club meetingsand must look activities hold modeling interests until February 1988 161 IMPROVED ALSN* B Ljrjet 140, 44 44340 erformance Rossi 90 has Arrived long-awaited Rossi 90 has undergone extensive testing under Research Personnels direction has passed level flying colors Running 20% nitromethane fuel Rossi 90 powered Byro-Jet equipped newly designed Tuned Muffler turning steady 20400 rpm producing much 2 pounds thrust 05 77. increase weight 5 ounces All-in-all new Rossi 90 produces same brute power previously experienced 81 can expected same Rossi reputation solid trouble free reliable operation obvious new 90 Designed specifically Byro-Jet Ducted Fan items necessary retrofit existing Byro-Jet System equipped OS 77 Rossi 81 new Engine Mount Tuned Muffler Rossi 90 Engine have Byron Originals ducted fan jet flying Byro-Jet powered model sort have looking power thrust Rossi 90 just ticket SPECIFICATIONS RPM20400Fan Diameter Static Thrust13A-13Total Performance Pkg Shroud Diameter OD7 Weight2 lb 7 oz Recommended Fuel ByronOriginals udes Rossi 90Header Pipe Performance Blended Fuel 20%Byro-Jet Fan Custom Tuned NitromethaneMuffler Pipe Coupler Mounting Bracket Hardware Available Exclusively from. Byron Originals Inc PO Box 279 Ida Grove IA 51445 Phone 712 364-3165 Telex 293595 MIDWEST IDAG Order Information Order No Retail Factory $32995*
Edition: Model Aviation - 1988/02
Page Numbers: 66, 67, 68, 69, 70, 71, 160, 161
C cura STUDY Fowler Flaps would have made equally appropriate title article Fowler flaps P-38 originat ed about same time two go hand-in-hand aviation history Moreover use Fowler Flaps P-38 what first attracted airplane led investigate could duplicate system model Several years ago doing some re search Air Force Museum WrightPatterson AFB came across picture P-38 landing configuration Fowler landing flaps full down out position Fowler flaps thought incredulously airplane designed 1937 peri od Air Corps still flying fabric-covered planes ad vanced fighter day P-26 Peashooter idea Fowler flaps intrigu ing vision Scale model P 38 floating like butterfly landing Fowler flaps extended enticed straight drawing board However five months later after countless hours spent 66 Model Aviation mo Top beauty finished project belies technical prowess required make chanics Fowler flaps retracts work Above author winning P-38 Lake Charles Nats 1986 Model detailed after P-38 display Air Force Museum Left The fuselage center section chassis farmers Note aluminum flap mechanism attached %2 ply chassis sides Right Fowler Flap mechanisms attached fuselage center section Using plans Its easy duplicate what took hours first design Left During early stages construction P-38 rests jig board see text its construction Centerlines trued up wing washout built stage Right Basic framework now taking shape its time test out mechanical operation ground test box connected electrical system flaps landing gear operated check binding linkages erratic operation sketching drawing puzzling construct ing mock-ups just general conceptualiz ing back square problem Vd run Fowler flap installa tion P-38 clean work ing mechanisms linkages inside wing Unlike todays planes jetliners have kinds pods protuberances exterior surface wing cover up jackscrews linkages designers P-38 managed get everything enclosed within wing cutting down drag increasing overall efficiency plane Now really hooked knew Id have research Fowler flap try discover did unobtru sively full-size P-38 What kind crazy linkages did dream up move flap out wing position hind trailing edge same time rotate down 450 designed man named Fowler Yes learned indeed man named Fowler designer came Lockheed Stearman Hammond Airplane Company au tunin 1935 Lockheeds chief engineer time Hall Hibbard liked Fowlers flap idea well convinced Lockheedss patent counsel underwrite patent Lockheed Model 14 Super Electra transport selected test bed Fowlers flap system first flight Model 14 Fowler flaps made January 1937the same month coinci dentally Air Corps put out its bid specifications new type pursuit plane Up time Lockheed involved military pursuit/combat planes company jumped both feet result its Model Starting left working counterclockwise see Fowler flap mechanism go through its cycle drag links follow tracks cut aluminum sheeting allowing model accu rately duplicate down out movement flaps full scale P-38 Four sets assemblies attached appropriate ribs see plans actuate four flaps plane February 1988 67 - -~0Sss0 ---_______ E00TR000CKSCRE00M0 0S0ESAS1SST~0s ROSOC EONS COCSpT,0CEUC0 PAHTEOSC%0 L__ IT MACTILT VQ VIEW ESS CEIV COAWS SOCSF TbAE0 005 H0SSL 00Scoooso $TACSE 0& HEA SO/0E0XOC0XFWSEOEC55-oss -o EOTEEo SSO5E ~f i-~ TG 00i ESOSSpS50500000N ES6SLESOSSOEXEEop SC 0 ~L70I DL7 CARSE 00005 FROM SAISAFROM RNMET OJODEES ONE 0575500050ELEOATOE flOMC SACS 0000I0SS COWLING TARTS6005550[ 000 ES SFI55ERS LOCKHEED P-38L LIGHTNING 5I00 0AoSSCAT 0CONTROLUNESCALE lV 1S ______________________________ 5 0000 500* 0o PLODESIGNED & DRAWN BY LT CXL JACK STOLLY DALLAS TEXAS ___________________ SMUEWAitiSHEETS SF5 22 designated XP-38 Air Corps Fowler flap just novations incorporated new design Construction XP-38 began July 1938 progressed rapidly though new plane loaded kinds firsts addition Fowler flaps first airplane have butt-jointed flush-riveted exterior surfaces turbo superchargers first make extensive use stainless steel first twin en gine counter-rotating propellers completed within seven months tak en March Field Riverside CA its first flight January 1939 Just few weeks later February 11 overanx ious Air Corps sent its new machine record-breaking cross-country flight March Field Mitchell Field Long Island NYunfortunately have crash landing Despite awkward beginning P-38 went become versatile fighter plane World War ILbut thats whole different story Fowler flap licensed other air craft companies used such fa mous planes Consolidated B-24 Lockheed Constellation also known Connie Getting back problem clean stallation Fowler flaps model P-38 did eventually come up solution shown detail plans accompany ing pictures realize ironically system identical principle devised Lockheed engineers years ago full-size P-38 tracks drag links ends of four flaps two inboard two outboard extend rotate flaps just model does Also flaps full-size version powered 68 Model Aviation Full-Size Plans Available. See Page 170 LIP PART OPTS CS 4~FFAPAAAVAPAUAtAS 54-- cZzr 4OA 4WS iASR______ __________________ ______ I____________ -iji i ACTCJACASTAATAWB~-~ -ABAlSAAAT4 WA PASS ATIAT 5RAA _____________ APAWOSSAPI AASAAAAATSASW SAASTAAAAAABSTP TASWCAIASSESSION PA 5505 AWAS WISPAW ASATIOPASLOCKHEED F- 8L LIGHTNING CONTROLUNE IV. ________________________DESIGNED S DRAWN BY LI COL ABCS SIGLLY I-means jackscrew cable/pulley sys- has added advantage eliminating flut- work goes designing tern almost same model ter because flaps locked no matter scratch-building model such system works scale fashion what position theyre inseemed well worth P-38 won February 1988 69 Full-Size Plans Available . See Page 170 4PR0VREUP -LEESRRNS PORrOGORERT 000 JJEREp i I ER LnEEEVIRE 0 $ ROStErS R RUE-PEN AlE LENRIEEEERRVIERPER WURNSTOSRNN RREVRTRTROOLENECrOVEN1 ER VIEVY-ERITORPELR PULEl VOEPROLNTEP~- ft TOP ELEYE G OROS REVERE NE ER ERVETOR* REERRER RU-SW OR RTENNERSERORTEOJA TVREVLSETORRENT S0ERRV-~ EVUTSREVRESSOT SRVLEROO0ERVTS NNERL ROOt CIER PR OROERE ROE ERRrV VSS0ERTE________________________________________________ r ERRATREORENOR TESOLEOESSOSRI NoR pOSSoR RRRVOWWSSl P3VEVRERSRURR 7kRS t TORE ORTERNPRRLRESE-Trrg P4WE~0ORVUSSO oRPESENlTE OVETEVA P RRfl MEVa VEER RETREPTER_______YE EAR RRTS REEL MAE z REF RLERP&RTNE1 TERN FROM OAR SPREL P0500MI IK~ 7~P8LLIIN7 OEUiELI OSR 0RE0EE OVONS 00000A OREOROA SOES OORTONART MEN EEOEEEEEPLENOOR .aSLAWOPSEER00 LSOIOESKINED& OAAWPR BY LT CO JACK 9TOUY IS ROOROYSVE Ii RRVSRSTLEEOTO PERT 000RE 0 WOUR AR first place Open Sport Scale 1986 Nats Lake Charles heighten satisfaction 50th anniversary AMA 50th year model building addition P-38 awarded NASA Scale Flight Achievement award Control Line scoring highest num ber flight points Construction P-38 shown plans true scale no deviations scale necessary oaly conces sion youll need make set thrust line starboard engine about one-anda-half degrees right toward out70 Model Aviation RE CERNENFO EE ORE RR PERT NP SETS -l11E {ffThW0RE OEEO SENVOR UNE WOTEO TREOR RSS4 Left jackacrew servo cockpit nose section operates landing gear retract mechanism Shown door closed position Right three-line beilorank burled somewhere right angle beiicrank seen above part number 17 drawing Elevator pushrod reversal neceseary cause ieftlrlght belicrank chosen oper ates opposite direction thats required real challenge fowier flaps keep levers mechanisms side wing done original side flying circle compensate engine failure left engine should occur No offset rudders necessary plane balances perfectly added weights two de ground control box left plugs plane test landIng gear flap operations also fires glow plugs engine starting flight control handle has throt tle three-line operation battery switches operate flaps gear during flight February 1988 71 U lead-outs connect just outboard left maIn wheel well Du-Bro bail links left nacelle better display appearance connect wheel door hinges close Another set line guides pictured after wheels retract Making linkhere located near inboard wing tip ages work pain worth effort Located just behind cockpIt two levers operate torque rods con nected doors main landIng gear grees washout outer wing panels scale works perfectly model have yet make bad landing airplane Im sure its because wash out wings gives such good stall characteristics way build airplane right build jig board used piece 3A-in wood cut 12 x 54 must abso lutely flat warps Leave Continued page 160 front sections planked wing sheeted model now ready have tall sections added Author says pianked cowlings easIer make fibergiase cowls Watching tiaps come out go down required 450 what made model worth building time effort required FULL BODY PILOT KIT Contains pilot head hands boots helmet cap goggles full templates easy instruc tions Easy assemble finish Some simple sewing required Fully positionable tool #20E% scale #205-/ scale #204-A scale #203-% scale Price 895 995 1095 1695 DARNED GOOD AIRMEN w Lightest pilots available Lifelike vinyl latex rubber Sportsman Barnstormer Full Body Bust BuildBUST PILOT KIT Contains pilot head helmet sport cap goggles jacket Easy assemble finish Price $lOSi/c scale NEW 595 LAwing #106-V5 scale695 #105-/ scale 795 #104-/ scale me #103-V2 scale1495mple requfred JET PILOT KIT Pilot has molded let helmet Contains face mask osygen hose Estreme ly Realistic Weighs less /2 OZ Price #3OE-/ scale #307l/r scale 5 ORDERING INSTRUCTIONS See dealer first Order direct Add $100 shipping NYS residents add 7u/0 tan Send checs money order CODS OK Send $100 catalog See Dealer add Dollar direct order handling reissued mentioned earlier col umn has become reality Thanks efforts Cam Martin has sufficient interest shown three models F-8F Bearcat F-4U Corsair AD Skyraider Bob Smurthwaite produce limited number kits Price $36 $42 Corsair plus $2 shipping Anyone interested may contact Bob PO Box 2947 La Grande OR 97850 phone 503 963-0596 Exhaust deflector final correction igin plumbing-fitting exhaust deflector described August issue origi nal idea belonged Orin Humphrics efforts involved soldering elbow mount sol der joint failed readily because heat exhaust gas idea integral mount shown photographs described column belongs Stan Johnson Both Stan Orin have using latest design much success Navy Carrier Advisory Committee As chair man Navy Carrier Advisory Committee try keep members committee can represent areas Carrier events regularly flown Ron Haase has represented Flor ida past recently has inactive events has asked replaced committee Since have flown Southeast recently have address information readily avail able Carrier modelers area am taking opportunity ask volunteers active Carrier modeler Southeastern states interested serving Navy Carrier Advisory Committee please write tell Carrier activities will happy consider possible membership committee P-38/StoIIy Continued page 71 structure jig throughout construc tion process keeps thing lined up properly can move jig board out way want use workbench something else did build tail booms aft form er E- 11 until front part plane pretty well completed saves bench space allows easy access model assembly innards under way also allows work landing gear make necessary adjustments plane jig Mark formers ribs chassis parts centerlines shown plans As semble cockpit center-pod chassis formers making sure centerlines match Assemble two engine nacelle chassis parts formers Set three units up about six inches above jig board using A-in plywood supports tack-glued board clamped formers Using ruler ad just everything proper height mea suring top jig board centerline parts Wings Insert support x Ye-in spruce main wing spars wing ribs aluminum flap tracks should already tached respective ribs x -in wing leading edge Note wing rib centerlines have two degrees positive incidence relation master aircraft centerline Starting near mid point outer wing panels positive incidence reduced build washout wing Once wing ribs lined up want add /8 x A-in /t6 x /16-in spruce stringers top bot tom wing ribs Glue up lock everything place Fowler flaps system Build flap sys tem following plans photos making sure no binding four flaps works true easy Multistrand 012-in control line wire used connect flaps jackscrew servo flaps will go full up full down position seven eight seconds pretty close scale operating time Landing gears parts landing gear system detailed plans should machined accurately possible using drill press operations jigsaw small lathe also come handy re moved limit switches landing gear jackscrew servo relocated spot could easily adjusted precisely control up down limits 115 SCALE W Golden Era biplanes will come alive smooth flying eay building flying machine Its big enough catch attention yet small enough use everyday glow engine 2657 N E t88rn SIred Marni F orica 33180 Telephone 935-1436 KIT FEATURES Machined die cut balsa select plywood hardwoods Hardware package Pre-bent landing gear cabine wire Vacuum formed ABS cowl aleleron caps gas cover Mylar decals Full size plans instruction book including isometric drawings SPECIFICATIONS 1/5 Scale 72in Span Area 1530 sqin 4 channel Radio 61-12 Engine Weight 12 lbs Fuse 54 1/2 160 Model Aviation Item Byro-Jet Performance Pkg w/Rossi 90 Rossi 90 w/Header Pipe New Custom Tuned Muffler Engine Mount #9 retrofit 6130099$54992 613009838799 59301007071 259 95 * 4950* 593009435712500* *Add $300 shipping per item AK HI overseas call shipping costs Prices subject change notice landing gear travel door-closing mechanism guaranteed drive sane right out hobby see doors open close fullsize plane youll glad went trouble sure use balance spring main wheels shown plans take load off jackscrew ser vo save wear tear rest project routine model building covered detail drawings tail section added again leveling up centerlines engine nacelles centerlines tail booms flying P-38 modified J Rob erts three-line handle shown photo adding toggle switches flap landing gear control center switch selects between either flap land ing gear function also works off switch whole system 021-in multistrand control lines braided enameled copper magnet wire carry current because lines themselves have high resistance would require 30 40 volts get enough current through oper ate servos Although magnet wire self insulated wiped thin coating clear silicone caulking material further sulate bond wire lines main landing gear wheels fitted drum brakes activated ap plying full down elevator plane taxiing Locate planes ground test box jack convenient place choice box plugs starboard supercharger neatly hides six pin plugholes box plugged plane can operate landing gear flaps out having control lines hooked up box also has switch activates glow plug engine starting Just throw switch proper engine hit electric starter simple can Taken whole complicated model incorporates reproduces some inctricate systems fullscale P-38 aircraft duplicate retract able landing gear Fowler flap systems faithfully no easy task Scale model building its results count project worth effort itself its exercise problem solving may yield insights can applied other modeling problems Thats model builders art advances step step After routinely doing things model ing today would have difficult-toimpossible just 20 years ago some features model help move Control Line Scale modeling notch forward will happy dint skilled pa tient efforts youve brought life P-38 rewards lot fun flying eight pounds plus its definitely going loop does fly like full-scale heavy fighter plane Feed power steadily takeoff after threequarters circle shes built up enough speed come off ground just slight nudge up elevator Hit gear switch can feel become less nose-heavy wheels retract rear youre really off running doors close landing throttle back half power get flaps down just let ease down As soon main gear touches down nose lowers youve stopped flyingno bounce no fuss Thats way its supposed Keep em flying Scale documentation P-38 easily obtained hobby shops aviation sections bookstores libraries other scale documentation sources P-38 modeled after display Air Force Museum Dayton Ohio FF Duration/Murphy Continued page 73 install Occasionally will get bad Good thinking Eddy Well Ill close Aid Station now reopen again next column hope will two months now Indoor Rubber Speed Should reside lo cale winter months terminate outdoor flying contacts other Free Flighters will take place monthly club meetingsand must look activities hold modeling interests until February 1988 161 IMPROVED ALSN* B Ljrjet 140, 44 44340 erformance Rossi 90 has Arrived long-awaited Rossi 90 has undergone extensive testing under Research Personnels direction has passed level flying colors Running 20% nitromethane fuel Rossi 90 powered Byro-Jet equipped newly designed Tuned Muffler turning steady 20400 rpm producing much 2 pounds thrust 05 77. increase weight 5 ounces All-in-all new Rossi 90 produces same brute power previously experienced 81 can expected same Rossi reputation solid trouble free reliable operation obvious new 90 Designed specifically Byro-Jet Ducted Fan items necessary retrofit existing Byro-Jet System equipped OS 77 Rossi 81 new Engine Mount Tuned Muffler Rossi 90 Engine have Byron Originals ducted fan jet flying Byro-Jet powered model sort have looking power thrust Rossi 90 just ticket SPECIFICATIONS RPM20400Fan Diameter Static Thrust13A-13Total Performance Pkg Shroud Diameter OD7 Weight2 lb 7 oz Recommended Fuel ByronOriginals udes Rossi 90Header Pipe Performance Blended Fuel 20%Byro-Jet Fan Custom Tuned NitromethaneMuffler Pipe Coupler Mounting Bracket Hardware Available Exclusively from. Byron Originals Inc PO Box 279 Ida Grove IA 51445 Phone 712 364-3165 Telex 293595 MIDWEST IDAG Order Information Order No Retail Factory $32995*
Edition: Model Aviation - 1988/02
Page Numbers: 66, 67, 68, 69, 70, 71, 160, 161
C cura STUDY Fowler Flaps would have made equally appropriate title article Fowler flaps P-38 originat ed about same time two go hand-in-hand aviation history Moreover use Fowler Flaps P-38 what first attracted airplane led investigate could duplicate system model Several years ago doing some re search Air Force Museum WrightPatterson AFB came across picture P-38 landing configuration Fowler landing flaps full down out position Fowler flaps thought incredulously airplane designed 1937 peri od Air Corps still flying fabric-covered planes ad vanced fighter day P-26 Peashooter idea Fowler flaps intrigu ing vision Scale model P 38 floating like butterfly landing Fowler flaps extended enticed straight drawing board However five months later after countless hours spent 66 Model Aviation mo Top beauty finished project belies technical prowess required make chanics Fowler flaps retracts work Above author winning P-38 Lake Charles Nats 1986 Model detailed after P-38 display Air Force Museum Left The fuselage center section chassis farmers Note aluminum flap mechanism attached %2 ply chassis sides Right Fowler Flap mechanisms attached fuselage center section Using plans Its easy duplicate what took hours first design Left During early stages construction P-38 rests jig board see text its construction Centerlines trued up wing washout built stage Right Basic framework now taking shape its time test out mechanical operation ground test box connected electrical system flaps landing gear operated check binding linkages erratic operation sketching drawing puzzling construct ing mock-ups just general conceptualiz ing back square problem Vd run Fowler flap installa tion P-38 clean work ing mechanisms linkages inside wing Unlike todays planes jetliners have kinds pods protuberances exterior surface wing cover up jackscrews linkages designers P-38 managed get everything enclosed within wing cutting down drag increasing overall efficiency plane Now really hooked knew Id have research Fowler flap try discover did unobtru sively full-size P-38 What kind crazy linkages did dream up move flap out wing position hind trailing edge same time rotate down 450 designed man named Fowler Yes learned indeed man named Fowler designer came Lockheed Stearman Hammond Airplane Company au tunin 1935 Lockheeds chief engineer time Hall Hibbard liked Fowlers flap idea well convinced Lockheedss patent counsel underwrite patent Lockheed Model 14 Super Electra transport selected test bed Fowlers flap system first flight Model 14 Fowler flaps made January 1937the same month coinci dentally Air Corps put out its bid specifications new type pursuit plane Up time Lockheed involved military pursuit/combat planes company jumped both feet result its Model Starting left working counterclockwise see Fowler flap mechanism go through its cycle drag links follow tracks cut aluminum sheeting allowing model accu rately duplicate down out movement flaps full scale P-38 Four sets assemblies attached appropriate ribs see plans actuate four flaps plane February 1988 67 - -~0Sss0 ---_______ E00TR000CKSCRE00M0 0S0ESAS1SST~0s ROSOC EONS COCSpT,0CEUC0 PAHTEOSC%0 L__ IT MACTILT VQ VIEW ESS CEIV COAWS SOCSF TbAE0 005 H0SSL 00Scoooso $TACSE 0& HEA SO/0E0XOC0XFWSEOEC55-oss -o EOTEEo SSO5E ~f i-~ TG 00i ESOSSpS50500000N ES6SLESOSSOEXEEop SC 0 ~L70I DL7 CARSE 00005 FROM SAISAFROM RNMET OJODEES ONE 0575500050ELEOATOE flOMC SACS 0000I0SS COWLING TARTS6005550[ 000 ES SFI55ERS LOCKHEED P-38L LIGHTNING 5I00 0AoSSCAT 0CONTROLUNESCALE lV 1S ______________________________ 5 0000 500* 0o PLODESIGNED & DRAWN BY LT CXL JACK STOLLY DALLAS TEXAS ___________________ SMUEWAitiSHEETS SF5 22 designated XP-38 Air Corps Fowler flap just novations incorporated new design Construction XP-38 began July 1938 progressed rapidly though new plane loaded kinds firsts addition Fowler flaps first airplane have butt-jointed flush-riveted exterior surfaces turbo superchargers first make extensive use stainless steel first twin en gine counter-rotating propellers completed within seven months tak en March Field Riverside CA its first flight January 1939 Just few weeks later February 11 overanx ious Air Corps sent its new machine record-breaking cross-country flight March Field Mitchell Field Long Island NYunfortunately have crash landing Despite awkward beginning P-38 went become versatile fighter plane World War ILbut thats whole different story Fowler flap licensed other air craft companies used such fa mous planes Consolidated B-24 Lockheed Constellation also known Connie Getting back problem clean stallation Fowler flaps model P-38 did eventually come up solution shown detail plans accompany ing pictures realize ironically system identical principle devised Lockheed engineers years ago full-size P-38 tracks drag links ends of four flaps two inboard two outboard extend rotate flaps just model does Also flaps full-size version powered 68 Model Aviation Full-Size Plans Available. See Page 170 LIP PART OPTS CS 4~FFAPAAAVAPAUAtAS 54-- cZzr 4OA 4WS iASR______ __________________ ______ I____________ -iji i ACTCJACASTAATAWB~-~ -ABAlSAAAT4 WA PASS ATIAT 5RAA _____________ APAWOSSAPI AASAAAAATSASW SAASTAAAAAABSTP TASWCAIASSESSION PA 5505 AWAS WISPAW ASATIOPASLOCKHEED F- 8L LIGHTNING CONTROLUNE IV. ________________________DESIGNED S DRAWN BY LI COL ABCS SIGLLY I-means jackscrew cable/pulley sys- has added advantage eliminating flut- work goes designing tern almost same model ter because flaps locked no matter scratch-building model such system works scale fashion what position theyre inseemed well worth P-38 won February 1988 69 Full-Size Plans Available . See Page 170 4PR0VREUP -LEESRRNS PORrOGORERT 000 JJEREp i I ER LnEEEVIRE 0 $ ROStErS R RUE-PEN AlE LENRIEEEERRVIERPER WURNSTOSRNN RREVRTRTROOLENECrOVEN1 ER VIEVY-ERITORPELR PULEl VOEPROLNTEP~- ft TOP ELEYE G OROS REVERE NE ER ERVETOR* REERRER RU-SW OR RTENNERSERORTEOJA TVREVLSETORRENT S0ERRV-~ EVUTSREVRESSOT SRVLEROO0ERVTS NNERL ROOt CIER PR OROERE ROE ERRrV VSS0ERTE________________________________________________ r ERRATREORENOR TESOLEOESSOSRI NoR pOSSoR RRRVOWWSSl P3VEVRERSRURR 7kRS t TORE ORTERNPRRLRESE-Trrg P4WE~0ORVUSSO oRPESENlTE OVETEVA P RRfl MEVa VEER RETREPTER_______YE EAR RRTS REEL MAE z REF RLERP&RTNE1 TERN FROM OAR SPREL P0500MI IK~ 7~P8LLIIN7 OEUiELI OSR 0RE0EE OVONS 00000A OREOROA SOES OORTONART MEN EEOEEEEEPLENOOR .aSLAWOPSEER00 LSOIOESKINED& OAAWPR BY LT CO JACK 9TOUY IS ROOROYSVE Ii RRVSRSTLEEOTO PERT 000RE 0 WOUR AR first place Open Sport Scale 1986 Nats Lake Charles heighten satisfaction 50th anniversary AMA 50th year model building addition P-38 awarded NASA Scale Flight Achievement award Control Line scoring highest num ber flight points Construction P-38 shown plans true scale no deviations scale necessary oaly conces sion youll need make set thrust line starboard engine about one-anda-half degrees right toward out70 Model Aviation RE CERNENFO EE ORE RR PERT NP SETS -l11E {ffThW0RE OEEO SENVOR UNE WOTEO TREOR RSS4 Left jackacrew servo cockpit nose section operates landing gear retract mechanism Shown door closed position Right three-line beilorank burled somewhere right angle beiicrank seen above part number 17 drawing Elevator pushrod reversal neceseary cause ieftlrlght belicrank chosen oper ates opposite direction thats required real challenge fowier flaps keep levers mechanisms side wing done original side flying circle compensate engine failure left engine should occur No offset rudders necessary plane balances perfectly added weights two de ground control box left plugs plane test landIng gear flap operations also fires glow plugs engine starting flight control handle has throt tle three-line operation battery switches operate flaps gear during flight February 1988 71 U lead-outs connect just outboard left maIn wheel well Du-Bro bail links left nacelle better display appearance connect wheel door hinges close Another set line guides pictured after wheels retract Making linkhere located near inboard wing tip ages work pain worth effort Located just behind cockpIt two levers operate torque rods con nected doors main landIng gear grees washout outer wing panels scale works perfectly model have yet make bad landing airplane Im sure its because wash out wings gives such good stall characteristics way build airplane right build jig board used piece 3A-in wood cut 12 x 54 must abso lutely flat warps Leave Continued page 160 front sections planked wing sheeted model now ready have tall sections added Author says pianked cowlings easIer make fibergiase cowls Watching tiaps come out go down required 450 what made model worth building time effort required FULL BODY PILOT KIT Contains pilot head hands boots helmet cap goggles full templates easy instruc tions Easy assemble finish Some simple sewing required Fully positionable tool #20E% scale #205-/ scale #204-A scale #203-% scale Price 895 995 1095 1695 DARNED GOOD AIRMEN w Lightest pilots available Lifelike vinyl latex rubber Sportsman Barnstormer Full Body Bust BuildBUST PILOT KIT Contains pilot head helmet sport cap goggles jacket Easy assemble finish Price $lOSi/c scale NEW 595 LAwing #106-V5 scale695 #105-/ scale 795 #104-/ scale me #103-V2 scale1495mple requfred JET PILOT KIT Pilot has molded let helmet Contains face mask osygen hose Estreme ly Realistic Weighs less /2 OZ Price #3OE-/ scale #307l/r scale 5 ORDERING INSTRUCTIONS See dealer first Order direct Add $100 shipping NYS residents add 7u/0 tan Send checs money order CODS OK Send $100 catalog See Dealer add Dollar direct order handling reissued mentioned earlier col umn has become reality Thanks efforts Cam Martin has sufficient interest shown three models F-8F Bearcat F-4U Corsair AD Skyraider Bob Smurthwaite produce limited number kits Price $36 $42 Corsair plus $2 shipping Anyone interested may contact Bob PO Box 2947 La Grande OR 97850 phone 503 963-0596 Exhaust deflector final correction igin plumbing-fitting exhaust deflector described August issue origi nal idea belonged Orin Humphrics efforts involved soldering elbow mount sol der joint failed readily because heat exhaust gas idea integral mount shown photographs described column belongs Stan Johnson Both Stan Orin have using latest design much success Navy Carrier Advisory Committee As chair man Navy Carrier Advisory Committee try keep members committee can represent areas Carrier events regularly flown Ron Haase has represented Flor ida past recently has inactive events has asked replaced committee Since have flown Southeast recently have address information readily avail able Carrier modelers area am taking opportunity ask volunteers active Carrier modeler Southeastern states interested serving Navy Carrier Advisory Committee please write tell Carrier activities will happy consider possible membership committee P-38/StoIIy Continued page 71 structure jig throughout construc tion process keeps thing lined up properly can move jig board out way want use workbench something else did build tail booms aft form er E- 11 until front part plane pretty well completed saves bench space allows easy access model assembly innards under way also allows work landing gear make necessary adjustments plane jig Mark formers ribs chassis parts centerlines shown plans As semble cockpit center-pod chassis formers making sure centerlines match Assemble two engine nacelle chassis parts formers Set three units up about six inches above jig board using A-in plywood supports tack-glued board clamped formers Using ruler ad just everything proper height mea suring top jig board centerline parts Wings Insert support x Ye-in spruce main wing spars wing ribs aluminum flap tracks should already tached respective ribs x -in wing leading edge Note wing rib centerlines have two degrees positive incidence relation master aircraft centerline Starting near mid point outer wing panels positive incidence reduced build washout wing Once wing ribs lined up want add /8 x A-in /t6 x /16-in spruce stringers top bot tom wing ribs Glue up lock everything place Fowler flaps system Build flap sys tem following plans photos making sure no binding four flaps works true easy Multistrand 012-in control line wire used connect flaps jackscrew servo flaps will go full up full down position seven eight seconds pretty close scale operating time Landing gears parts landing gear system detailed plans should machined accurately possible using drill press operations jigsaw small lathe also come handy re moved limit switches landing gear jackscrew servo relocated spot could easily adjusted precisely control up down limits 115 SCALE W Golden Era biplanes will come alive smooth flying eay building flying machine Its big enough catch attention yet small enough use everyday glow engine 2657 N E t88rn SIred Marni F orica 33180 Telephone 935-1436 KIT FEATURES Machined die cut balsa select plywood hardwoods Hardware package Pre-bent landing gear cabine wire Vacuum formed ABS cowl aleleron caps gas cover Mylar decals Full size plans instruction book including isometric drawings SPECIFICATIONS 1/5 Scale 72in Span Area 1530 sqin 4 channel Radio 61-12 Engine Weight 12 lbs Fuse 54 1/2 160 Model Aviation Item Byro-Jet Performance Pkg w/Rossi 90 Rossi 90 w/Header Pipe New Custom Tuned Muffler Engine Mount #9 retrofit 6130099$54992 613009838799 59301007071 259 95 * 4950* 593009435712500* *Add $300 shipping per item AK HI overseas call shipping costs Prices subject change notice landing gear travel door-closing mechanism guaranteed drive sane right out hobby see doors open close fullsize plane youll glad went trouble sure use balance spring main wheels shown plans take load off jackscrew ser vo save wear tear rest project routine model building covered detail drawings tail section added again leveling up centerlines engine nacelles centerlines tail booms flying P-38 modified J Rob erts three-line handle shown photo adding toggle switches flap landing gear control center switch selects between either flap land ing gear function also works off switch whole system 021-in multistrand control lines braided enameled copper magnet wire carry current because lines themselves have high resistance would require 30 40 volts get enough current through oper ate servos Although magnet wire self insulated wiped thin coating clear silicone caulking material further sulate bond wire lines main landing gear wheels fitted drum brakes activated ap plying full down elevator plane taxiing Locate planes ground test box jack convenient place choice box plugs starboard supercharger neatly hides six pin plugholes box plugged plane can operate landing gear flaps out having control lines hooked up box also has switch activates glow plug engine starting Just throw switch proper engine hit electric starter simple can Taken whole complicated model incorporates reproduces some inctricate systems fullscale P-38 aircraft duplicate retract able landing gear Fowler flap systems faithfully no easy task Scale model building its results count project worth effort itself its exercise problem solving may yield insights can applied other modeling problems Thats model builders art advances step step After routinely doing things model ing today would have difficult-toimpossible just 20 years ago some features model help move Control Line Scale modeling notch forward will happy dint skilled pa tient efforts youve brought life P-38 rewards lot fun flying eight pounds plus its definitely going loop does fly like full-scale heavy fighter plane Feed power steadily takeoff after threequarters circle shes built up enough speed come off ground just slight nudge up elevator Hit gear switch can feel become less nose-heavy wheels retract rear youre really off running doors close landing throttle back half power get flaps down just let ease down As soon main gear touches down nose lowers youve stopped flyingno bounce no fuss Thats way its supposed Keep em flying Scale documentation P-38 easily obtained hobby shops aviation sections bookstores libraries other scale documentation sources P-38 modeled after display Air Force Museum Dayton Ohio FF Duration/Murphy Continued page 73 install Occasionally will get bad Good thinking Eddy Well Ill close Aid Station now reopen again next column hope will two months now Indoor Rubber Speed Should reside lo cale winter months terminate outdoor flying contacts other Free Flighters will take place monthly club meetingsand must look activities hold modeling interests until February 1988 161 IMPROVED ALSN* B Ljrjet 140, 44 44340 erformance Rossi 90 has Arrived long-awaited Rossi 90 has undergone extensive testing under Research Personnels direction has passed level flying colors Running 20% nitromethane fuel Rossi 90 powered Byro-Jet equipped newly designed Tuned Muffler turning steady 20400 rpm producing much 2 pounds thrust 05 77. increase weight 5 ounces All-in-all new Rossi 90 produces same brute power previously experienced 81 can expected same Rossi reputation solid trouble free reliable operation obvious new 90 Designed specifically Byro-Jet Ducted Fan items necessary retrofit existing Byro-Jet System equipped OS 77 Rossi 81 new Engine Mount Tuned Muffler Rossi 90 Engine have Byron Originals ducted fan jet flying Byro-Jet powered model sort have looking power thrust Rossi 90 just ticket SPECIFICATIONS RPM20400Fan Diameter Static Thrust13A-13Total Performance Pkg Shroud Diameter OD7 Weight2 lb 7 oz Recommended Fuel ByronOriginals udes Rossi 90Header Pipe Performance Blended Fuel 20%Byro-Jet Fan Custom Tuned NitromethaneMuffler Pipe Coupler Mounting Bracket Hardware Available Exclusively from. Byron Originals Inc PO Box 279 Ida Grove IA 51445 Phone 712 364-3165 Telex 293595 MIDWEST IDAG Order Information Order No Retail Factory $32995*