One highly respected rubber scale models countrytwo firsts third FAC Scale Model Nats examplethis prewar racing plane offers naturally efficient layoutlong fuselage long nose shoulder wing sport/scale fan ensures long pretty flightsE Bill Henn curing racetarsi man aown outaii ion gets ott smootn launon Note parallel Inclination otarm snip flight othershipsappeartO Firecrackers Final round two survivors tension filledhow turns risk top other man Chambermaid Bummum .u..mu mmuuu mm .....mmuuu.muu.u.uu UUU U U EU mini Eu. .....uu.u U ENUEUEME UUUUUUUUU UU uummuummumuuumuummummuuumummumuuuuruuumuuumummmmuui Eummmm.mm..muuuuuu..u.uu.uuumuumuu mmu.uu.ummmm.uu...m.u. muumuummummmummm.uummuumuuumuumruu.u.uuu ummmuu.uu.muumuuuu.mul..mmu.u.I Im.uuu..uu...mu..uu.. mumuuummummruuuuuuuuuummmmuurmmmmmmumuI Em..U. ......uuum u.muuu... umuumumumuummr uuu. U..um.umum.uu umuEEuUuuUUI mm..mu.uu.m umuu..u.m mu....um..mr um.u.u.umI lmummukUUUUU IUUUUUEUEUUEU uu..uuuuuuI uuumummuumr .mu umu.u..u.ma I...uum.u. uuuummuum U.. 1mmu uumUUuu U.~1EU lummiu..m. Eu. mu U.I..u.uuml mu. Eu.um.um.ur uu U..u.m.. urn Em.mmmmm.mu 1Mm U.mm.uuu. mu mumm mmuummmmmmr mum mumam. uuuuumu mmml HUEiUUEC mm mm. JummumumuLmU qmuuuusEEm mum u..uumm. mum rmmmi ..mu.ummmmummUmmmmm. mmmmmummmmmmummmuumquamummi mummum mm..m mumumur muum umum mummum mummum mummummi mumummmmuuummmmmmmimumum umummumummmmmmmmuumwmm. mumummmmummmmmmmmmuimumum mummmmuummmmmmmmmumuuinUUi mmmmmummmmmummmumummumum mm ummumum ummumumum pimminmi mmmmuummmuuummummumumum mmmmmmmmmmmm.mmimmumi muummuuuumumuuummuu mJuumu mmmummmmummmmmmmmm umhjummummi mmmmmmumummummmmmm mumumumummum ummummmmmmmmmmumm mmummumummummi mmmmmumummmmummmr aummummumumum mumummum mmmmuininmminuinmmuui mummumumumummummummi immummum mum... umumummmummu ummummuin mumummummmm.u ummummummummmmmuumi ummmmmmmmmmmmmmmi mmumummumumi mumumumin mmmmmmuummmummmmu mmmmmmmmmmmumummummi Eummummmumummmmumh uuuuumuuumm uminmummin mmmmmummummuuummmu ummuumuummu mummummi mmmmummmmmmmmmmm aumummmummmmmuw mmumum mmmmmmmmummumummmmmummumumummum. umumumi mmmmmumummmmmmuiuinmmmmmu mmmumumumUummmmummLummmmmmmummmmmmmmmmminmi EmmmmmummmuumuummmmmumuumumummuumbuumummmmmE ummummmmmmmummmmmmmm--ummmummummmmmmuummmuumumumml mm. mum... mum... mmmmmm mu.uumm umummum mm mummum m mumum. mumum ummummum mu.. mum.. ummumummummum ummum_ma April 1979 49 ms up Slmulate6 rev triangular bloc ore 1/64 plywood p ium hub Note elm fouratrande 3 umg before blowln rally smaller low fell out sk over coni shoulder wing mode f6llowing v simplified 24-in Sm ounce lightei e performance d fli2hts 85yu isfaction th noothie led ect t meet ruseiage ano sun navt obLa An Florida 3 time crafi over ALt tatE RiDS eldS&ET WA ArL OT1 OF Re Wi aim-Smws- rnAR,tzS Au S-ixwez* Ptuco &LiR2S V.EReWTlIJ TZTAIA. ZI US$i AJ AS FiGR AS ir 4iUDo AAV Din- DSP w7W-rusa 8TA7TNA fIIjWTW0m4 I I1IIIAift ST T z3-UA ~ FAiSR-D LA*wv*wz OirwEjJ PTCH DNSJG D BY B LUEPJN CHAMBEMAItJ LITOM3A~I IFOUl*aS3YR3UR8CHE 54J DALE ETIDEET BVoN PARL ~ti OEoAEDR PA74JL ktS _Li _____________________________ LSIZE PLANS AVAILABLE SEE PAGE 120 ii II Li IJ III NO OCR TEXT NO OCR TEXT some new fliers permitted running launch assistant great ly helped experiencing difficulty Two problems arise launch torque reaction left second engine leans out quits com pletely hard launch solution first hard javelin type launch second problem eased soft launch Experimentation air pickup position tank height has usually helped us solve problem airplane nose dropped just prior launch engine can made load up some allowing such hard throw some accused making first pylon muscle power alone summary have operated largely within framework provided AMA 197 879 Provisional Rules l/2A Pylon have lots fun successful season have enticed number average fliers competitive event now have another vehicle getting aver age modelers interested competitive racing event feel should jealously guard against attempts substantially change its essential nature lesson past history available process present AMA events have evolved very simple good idea very specialized event small elite number participants per mitted specialists will take over refine event around capabilities interests average modeler will have machine shop extra dollars ac cess special parts fuels have skill experience construct competi tive racing machine larger communities will still enough fliers race smaller communities interest will dwindle until spark goes out Certainly name game racing let us keep original objectives mind keep event average modeler inexpensive easily constructed planes Chambermaid/Henn continued page 50 screw up like Wakefield fly 005 about 4 minutes some miracle about hour later retrieved model approxi mately mile downwind released flown over small forest several communities landed open area vicinity Needless say kept grounded until contest easily won Shell Greve Races placed third Scale During morning meet still damp air two flights clocked about 145 another 159 model wasnt flown again year until Spring 1978 FAC meet again won Shell Greve Races During July 1978 entered FAC Nats held Johnsville PA first day meet 15-minute thermal flight earned Chambermaid second place Scale next day nudged Bob Haden Jeanette PA has already won three 1ST PLACE Helicopter trophies Tn Valley Static Show Pittsburgh PA WRAMS RIG Jam boree White Plains NY Toledo Weak Signals 24th R/G Exposition Toledo Ohio super sharp highly modified Kaven Bell Jet Ranger Bob says As can see photo Formula-U really helped make highly detailed paint job turn out great base color Flight Aluminum Raven Black nose Metallic Red Fiery Orange Aviation Yellow trim Im happy tell Formula-U stands up tool Prior photo model flown 6 times plus friction wear transporting shows events over country happy proud Bob pleased Formula-Us perform ance hope will give try next model Heres few winning reasons might consider 18 popular Gloss Metallic Flat flight line colors matching brush spray Quick Drying One-Step System OneCoat Coverage Higher Gloss Finish Fuel-Proof Mar-Resistant Lightweight Super Tough AND matches Pactras Solarfilm Colors NEED FINISHING HELP! Send $100 complete step-by-step fully illustrated instruction book covering PACTRA FINISHING SYSTEMS 7060 HOLLYWOOD BLVD LOS ANGELES CA 90028 out first place few seconds Shell own Mr Smoothie contestants may fly two planes event caught some good air flight maxed son Billy talked using Smoothie instead better flying Cham bermaid Thompson Race stiff breeze blowing models launched dangerously close edge field turned out Billy right since Smoothie flew beyond field tree disqualified Chambermaids latest accomplishment winning Shell Greve Races during rainstorm October 1978 FAC bash competition encoun tered Connecticut meets about toughest found anywhere Winning kind nibber FF event Yankee territory never easy Construction model straight forward no unusual difficult aspects Choice wood paramount Use lightest contest balsa can find fuselage formers nose block wing ribs wing tips rudder stabilizer parts rest components constructed slightly firmer wood exception fuselage longerons hard balsa fuselage has flat sides makes easy assembly Once assembled sides can joined box-like fashion April1979 113 can winner too! WITH FORMULA-U POLYURETHANE FINISH FOR GAS POWERED MODELS FLASH STARTING UNEXCELLEG POWER Jo LONGER LIFE J6 LOWEST DRAIN GLOW PLUGS SWANSON ASSOCIATES EW JERSEY 0740 OW JERSEY 07440 using 1/16 sq crosspieces formers can glued crosspieces Most formers notched saves some sanding eliminates possibility misaligned stringers due improperly cut notches constructing wings jack up trailing edge near tips build about 3/16 washout important improves stability model Wing washes built prior covering permanent twisted after completion stabilizer built shown plan will far superior simple flatbottom structure will stronger warp resistant will generate lift allowing further aft center gravity greater latitude length weight rubber motor will permitted due rearward balance point rudder outline laminated three strips 1/16 X 1/32 balsa formed around cardboard form Soak strips water few minutes wipe off paper napkin Apply slightly thinned water base glue middle strip slap together work around form Fasten strips form small pieces masking tape dry resultant structure will have adequate strength much lighter laminated basswood built up conventional manner using sheetwood importance keeping tail comp onents light cannot overemphasized Mount wings fuselage prior covering before installing lowest top forward section stringers Simply poke protruding ends leading edge trailing edge spars through fuselage until bottom rib number butts up against top longeron Set incidence dihedral shown plan glue whole works together bottom junction trailing edges may have trimmed allow sufficient clearance rubber motor stringers previously omitted can now installed will have curved over wing spars shown photographs plans fair wing fuselage Some small sections 1/16 sheeting should added fuselage around points wing attaches add strength facilitate covering removable part nose block constructed disk 1/16 plywood glued 3 laminations a cross grained Make thrust bearing following manner Cut piece luminum tubing 9/16 long Push Peck Polymers PA-6 nylon bearing way end tube should tight press fit Drive another nylon bearing other end tube until butts up against its mate cut off flush end tubing Install completed assembly nose button least 20 down- right-thrust type bearing great Coupes Wakes Unlimiteds Use longer piece aluminum tubing drill out nylon bushings accommodate heavier wire fuselage wing assembly tail components can now covered color actual airplane creme Yellow closet color available Japanese Tissue used white tissue air brushed lightly thin mixture nitrate dope mud color Floquil railroad paint Use care warp lightly constructed rudder stabilizer covering such fragile structures generally preshrink tissue frame prior application additional shrinking results doping enough remove wrinkles pull out slack After covering rudder stabilizer can attached fuselage Dont fill area above stab until after trimming allow incidence adjustments cockpit canopy spinner vacu-formed single wheel 1-7/16 diameter /8 thick can formed turning piece balsa electric drill piece brass tubing can driven through balsa Hot Stuffed facili tate installation drill chuck wheel completed slice half fit bottom fuselage combination 10 diameter X 14 pitch prop 4 strands 3/16 X 30 FAI rubber worked well both Mr Smoothie Chambermaid dont have FAT stuff will just well Sig rubber usually takes few turns tires quickly Ive wound both types destruction clamped bench vise have found blow about 12501280 turns flying contests have never put 950 winds simply because was necessary win comfortable margin prefer use laminated props aluminum tubing hubs race planes because easy build will withstand much abuse blades made sheet 1/64 plywood piece 1/32 balsa laminated top form shown plan can used purpose form can also used jig set blades hub proper angle Details hub free-wheeling device 114 Model Aviation EXPERT BUILDERS WANTED Send us list accomplishments photos planes PIPER TRI-PACER Quarter Scale 89 wingspan 42 Sq Ft detailed plans 5 PP CURTIS HAWK P-O-E 60 wingspan 46 Sq Ft super detailed scale plans $1295 P P Send $1 00 fur list built-up Planes & 50% Ott Sale Hobby Capitol 01st 46 N Oak St Ventura Ca 93001 Ph -805-643-7616 CUSTOM TUNED ENGINES COMPETITION ACCESSORIES Cox 0491051 Specialists brochure send 15c stamp Kustom Kraftsmanship Brochure Box 2699 Laguna Hills CA 92653 714 830-5162 Chambermaid some trophies has won preshrink JdJJEIUGU IIGSUU 10 ayoio warping depends dope remove wrinkles pullout slack Cockpit prop spinner vacu-formed FAC Nats watched ship put up two flights 145 159 shown plans photographs carefully constructed type free wheeler rugged dependable extremely easy model trim likely minor adjustments will necessary make fly well Adjusting glide small model large free wheeling prop difficult following procedure recommended Prior installing rubber motor prop balance model point shown plan adding clay nose Next test glide model make appro priate adjustments stab rudder obtain floating glide hardly percep tible right turn important glide turn should too tight prevent spiralling under power accomplished remove clay install prop rubber motor wind slack out motor rebal ance same point lucky will balance did addition extra weight up weight model 145 gram motor 67 grams Theoretically grossly underpowered model comes out much lighter equip DT use category III Unlimited heavier may have use rubber get fly well longer motor 3 640 made 4 strands braided rubber might trick Braiding rubber helps reduce weight shift occurs exces sively long motors run out bunch up After braiding 40 inch motor will measure less 36 inches will take about 1500 turns keep 10/14 prop spinning good clip over minute never used such motor Chambermaid did use good results San Francisco although larger heavier model has same distance tween rear motor peg prop hook After motor prop installed crank about 200 turns give model heave should climb gently right doesntturn shim nose plug add right-thrust Minor stalling diving tendencies can also corrected thrust adjustments Try get good power pattern disturbing rudder elevator settings preserve glide model seems behaving increase number turns successive flight properly adjusted will amazed high model will climb well will glide big free wheeler up front would pleased hear anyone builds model address 53 Hall St Clifton NJ 07014 Jungmeister/McClure continued page 62 Power prototype Bu 131 production Jungmann provided Hirth HM 60R inverted in-line four-cylin der aircooled engine rated 80 hp Salient specifications Bu 131 given accom panying tables Extensive early acceptance con- hp sequent expanding production Bu 131 Jungmann motivated relocation Bucker facilities Rangsdorf Airport 1935 production improved Bu 131B initiated early 1936 Concurrently 1935/1936 historic Bucker Ru 133 Jungmeister designed developed prototype brought early production Briefly deferring discussion description Bu 133 Jungmeister salient specifications Bu 131 B Jungmann given accompanying table Changes compared Bu 13 IA essentially due employment new engine Hirth HM 504 inverted line four-cylinder aircooled rated 105 German production Ru 131 Jungmann having initiated later 1934 continued 1940 time other Bucker/Andersson designs prod uction eg Ru 181 Bestmann monoplane known several thousand Jungmann machines built Germany alone hundreds built Spain Japan Some 200 Jungmanns used Japanese Navy over thousand constructed Japanese Army Some Spanish examples Ru 131 completed until well 1960s usually concluded Bucker biplanes never actively armed aircraft However known 1942 April1979 115 Please send me......... copies new fourth edition Radio Control Buyers Guide Enclosed $600 copy ordered $525 Guide plus $75 postage & handling Total Enclosed ___________ anada City State ZIP Return Boynton & Assoc Clifton House Clifton VA 22024
Edition: Model Aviation - 1979/04
Page Numbers: 49, 50, 51, 52, 53, 113, 114, 115
One highly respected rubber scale models countrytwo firsts third FAC Scale Model Nats examplethis prewar racing plane offers naturally efficient layoutlong fuselage long nose shoulder wing sport/scale fan ensures long pretty flightsE Bill Henn curing racetarsi man aown outaii ion gets ott smootn launon Note parallel Inclination otarm snip flight othershipsappeartO Firecrackers Final round two survivors tension filledhow turns risk top other man Chambermaid Bummum .u..mu mmuuu mm .....mmuuu.muu.u.uu UUU U U EU mini Eu. .....uu.u U ENUEUEME UUUUUUUUU UU uummuummumuuumuummummuuumummumuuuuruuumuuumummmmuui Eummmm.mm..muuuuuu..u.uu.uuumuumuu mmu.uu.ummmm.uu...m.u. muumuummummmummm.uummuumuuumuumruu.u.uuu ummmuu.uu.muumuuuu.mul..mmu.u.I Im.uuu..uu...mu..uu.. mumuuummummruuuuuuuuuummmmuurmmmmmmumuI Em..U. ......uuum u.muuu... umuumumumuummr uuu. U..um.umum.uu umuEEuUuuUUI mm..mu.uu.m umuu..u.m mu....um..mr um.u.u.umI lmummukUUUUU IUUUUUEUEUUEU uu..uuuuuuI uuumummuumr .mu umu.u..u.ma I...uum.u. uuuummuum U.. 1mmu uumUUuu U.~1EU lummiu..m. Eu. mu U.I..u.uuml mu. Eu.um.um.ur uu U..u.m.. urn Em.mmmmm.mu 1Mm U.mm.uuu. mu mumm mmuummmmmmr mum mumam. uuuuumu mmml HUEiUUEC mm mm. JummumumuLmU qmuuuusEEm mum u..uumm. mum rmmmi ..mu.ummmmummUmmmmm. mmmmmummmmmmummmuumquamummi mummum mm..m mumumur muum umum mummum mummum mummummi mumummmmuuummmmmmmimumum umummumummmmmmmmuumwmm. mumummmmummmmmmmmmuimumum mummmmuummmmmmmmmumuuinUUi mmmmmummmmmummmumummumum mm ummumum ummumumum pimminmi mmmmuummmuuummummumumum mmmmmmmmmmmm.mmimmumi muummuuuumumuuummuu mJuumu mmmummmmummmmmmmmm umhjummummi mmmmmmumummummmmmm mumumumummum ummummmmmmmmmmumm mmummumummummi mmmmmumummmmummmr aummummumumum mumummum mmmmuininmminuinmmuui mummumumumummummummi immummum mum... umumummmummu ummummuin mumummummmm.u ummummummummmmmuumi ummmmmmmmmmmmmmmi mmumummumumi mumumumin mmmmmmuummmummmmu mmmmmmmmmmmumummummi Eummummmumummmmumh uuuuumuuumm uminmummin mmmmmummummuuummmu ummuumuummu mummummi mmmmummmmmmmmmmm aumummmummmmmuw mmumum mmmmmmmmummumummmmmummumumummum. umumumi mmmmmumummmmmmuiuinmmmmmu mmmumumumUummmmummLummmmmmmummmmmmmmmmminmi EmmmmmummmuumuummmmmumuumumummuumbuumummmmmE ummummmmmmmummmmmmmm--ummmummummmmmmuummmuumumumml mm. mum... mum... mmmmmm mu.uumm umummum mm mummum m mumum. mumum ummummum mu.. mum.. ummumummummum ummum_ma April 1979 49 ms up Slmulate6 rev triangular bloc ore 1/64 plywood p ium hub Note elm fouratrande 3 umg before blowln rally smaller low fell out sk over coni shoulder wing mode f6llowing v simplified 24-in Sm ounce lightei e performance d fli2hts 85yu isfaction th noothie led ect t meet ruseiage ano sun navt obLa An Florida 3 time crafi over ALt tatE RiDS eldS&ET WA ArL OT1 OF Re Wi aim-Smws- rnAR,tzS Au S-ixwez* Ptuco &LiR2S V.EReWTlIJ TZTAIA. ZI US$i AJ AS FiGR AS ir 4iUDo AAV Din- DSP w7W-rusa 8TA7TNA fIIjWTW0m4 I I1IIIAift ST T z3-UA ~ FAiSR-D LA*wv*wz OirwEjJ PTCH DNSJG D BY B LUEPJN CHAMBEMAItJ LITOM3A~I IFOUl*aS3YR3UR8CHE 54J DALE ETIDEET BVoN PARL ~ti OEoAEDR PA74JL ktS _Li _____________________________ LSIZE PLANS AVAILABLE SEE PAGE 120 ii II Li IJ III NO OCR TEXT NO OCR TEXT some new fliers permitted running launch assistant great ly helped experiencing difficulty Two problems arise launch torque reaction left second engine leans out quits com pletely hard launch solution first hard javelin type launch second problem eased soft launch Experimentation air pickup position tank height has usually helped us solve problem airplane nose dropped just prior launch engine can made load up some allowing such hard throw some accused making first pylon muscle power alone summary have operated largely within framework provided AMA 197 879 Provisional Rules l/2A Pylon have lots fun successful season have enticed number average fliers competitive event now have another vehicle getting aver age modelers interested competitive racing event feel should jealously guard against attempts substantially change its essential nature lesson past history available process present AMA events have evolved very simple good idea very specialized event small elite number participants per mitted specialists will take over refine event around capabilities interests average modeler will have machine shop extra dollars ac cess special parts fuels have skill experience construct competi tive racing machine larger communities will still enough fliers race smaller communities interest will dwindle until spark goes out Certainly name game racing let us keep original objectives mind keep event average modeler inexpensive easily constructed planes Chambermaid/Henn continued page 50 screw up like Wakefield fly 005 about 4 minutes some miracle about hour later retrieved model approxi mately mile downwind released flown over small forest several communities landed open area vicinity Needless say kept grounded until contest easily won Shell Greve Races placed third Scale During morning meet still damp air two flights clocked about 145 another 159 model wasnt flown again year until Spring 1978 FAC meet again won Shell Greve Races During July 1978 entered FAC Nats held Johnsville PA first day meet 15-minute thermal flight earned Chambermaid second place Scale next day nudged Bob Haden Jeanette PA has already won three 1ST PLACE Helicopter trophies Tn Valley Static Show Pittsburgh PA WRAMS RIG Jam boree White Plains NY Toledo Weak Signals 24th R/G Exposition Toledo Ohio super sharp highly modified Kaven Bell Jet Ranger Bob says As can see photo Formula-U really helped make highly detailed paint job turn out great base color Flight Aluminum Raven Black nose Metallic Red Fiery Orange Aviation Yellow trim Im happy tell Formula-U stands up tool Prior photo model flown 6 times plus friction wear transporting shows events over country happy proud Bob pleased Formula-Us perform ance hope will give try next model Heres few winning reasons might consider 18 popular Gloss Metallic Flat flight line colors matching brush spray Quick Drying One-Step System OneCoat Coverage Higher Gloss Finish Fuel-Proof Mar-Resistant Lightweight Super Tough AND matches Pactras Solarfilm Colors NEED FINISHING HELP! Send $100 complete step-by-step fully illustrated instruction book covering PACTRA FINISHING SYSTEMS 7060 HOLLYWOOD BLVD LOS ANGELES CA 90028 out first place few seconds Shell own Mr Smoothie contestants may fly two planes event caught some good air flight maxed son Billy talked using Smoothie instead better flying Cham bermaid Thompson Race stiff breeze blowing models launched dangerously close edge field turned out Billy right since Smoothie flew beyond field tree disqualified Chambermaids latest accomplishment winning Shell Greve Races during rainstorm October 1978 FAC bash competition encoun tered Connecticut meets about toughest found anywhere Winning kind nibber FF event Yankee territory never easy Construction model straight forward no unusual difficult aspects Choice wood paramount Use lightest contest balsa can find fuselage formers nose block wing ribs wing tips rudder stabilizer parts rest components constructed slightly firmer wood exception fuselage longerons hard balsa fuselage has flat sides makes easy assembly Once assembled sides can joined box-like fashion April1979 113 can winner too! WITH FORMULA-U POLYURETHANE FINISH FOR GAS POWERED MODELS FLASH STARTING UNEXCELLEG POWER Jo LONGER LIFE J6 LOWEST DRAIN GLOW PLUGS SWANSON ASSOCIATES EW JERSEY 0740 OW JERSEY 07440 using 1/16 sq crosspieces formers can glued crosspieces Most formers notched saves some sanding eliminates possibility misaligned stringers due improperly cut notches constructing wings jack up trailing edge near tips build about 3/16 washout important improves stability model Wing washes built prior covering permanent twisted after completion stabilizer built shown plan will far superior simple flatbottom structure will stronger warp resistant will generate lift allowing further aft center gravity greater latitude length weight rubber motor will permitted due rearward balance point rudder outline laminated three strips 1/16 X 1/32 balsa formed around cardboard form Soak strips water few minutes wipe off paper napkin Apply slightly thinned water base glue middle strip slap together work around form Fasten strips form small pieces masking tape dry resultant structure will have adequate strength much lighter laminated basswood built up conventional manner using sheetwood importance keeping tail comp onents light cannot overemphasized Mount wings fuselage prior covering before installing lowest top forward section stringers Simply poke protruding ends leading edge trailing edge spars through fuselage until bottom rib number butts up against top longeron Set incidence dihedral shown plan glue whole works together bottom junction trailing edges may have trimmed allow sufficient clearance rubber motor stringers previously omitted can now installed will have curved over wing spars shown photographs plans fair wing fuselage Some small sections 1/16 sheeting should added fuselage around points wing attaches add strength facilitate covering removable part nose block constructed disk 1/16 plywood glued 3 laminations a cross grained Make thrust bearing following manner Cut piece luminum tubing 9/16 long Push Peck Polymers PA-6 nylon bearing way end tube should tight press fit Drive another nylon bearing other end tube until butts up against its mate cut off flush end tubing Install completed assembly nose button least 20 down- right-thrust type bearing great Coupes Wakes Unlimiteds Use longer piece aluminum tubing drill out nylon bushings accommodate heavier wire fuselage wing assembly tail components can now covered color actual airplane creme Yellow closet color available Japanese Tissue used white tissue air brushed lightly thin mixture nitrate dope mud color Floquil railroad paint Use care warp lightly constructed rudder stabilizer covering such fragile structures generally preshrink tissue frame prior application additional shrinking results doping enough remove wrinkles pull out slack After covering rudder stabilizer can attached fuselage Dont fill area above stab until after trimming allow incidence adjustments cockpit canopy spinner vacu-formed single wheel 1-7/16 diameter /8 thick can formed turning piece balsa electric drill piece brass tubing can driven through balsa Hot Stuffed facili tate installation drill chuck wheel completed slice half fit bottom fuselage combination 10 diameter X 14 pitch prop 4 strands 3/16 X 30 FAI rubber worked well both Mr Smoothie Chambermaid dont have FAT stuff will just well Sig rubber usually takes few turns tires quickly Ive wound both types destruction clamped bench vise have found blow about 12501280 turns flying contests have never put 950 winds simply because was necessary win comfortable margin prefer use laminated props aluminum tubing hubs race planes because easy build will withstand much abuse blades made sheet 1/64 plywood piece 1/32 balsa laminated top form shown plan can used purpose form can also used jig set blades hub proper angle Details hub free-wheeling device 114 Model Aviation EXPERT BUILDERS WANTED Send us list accomplishments photos planes PIPER TRI-PACER Quarter Scale 89 wingspan 42 Sq Ft detailed plans 5 PP CURTIS HAWK P-O-E 60 wingspan 46 Sq Ft super detailed scale plans $1295 P P Send $1 00 fur list built-up Planes & 50% Ott Sale Hobby Capitol 01st 46 N Oak St Ventura Ca 93001 Ph -805-643-7616 CUSTOM TUNED ENGINES COMPETITION ACCESSORIES Cox 0491051 Specialists brochure send 15c stamp Kustom Kraftsmanship Brochure Box 2699 Laguna Hills CA 92653 714 830-5162 Chambermaid some trophies has won preshrink JdJJEIUGU IIGSUU 10 ayoio warping depends dope remove wrinkles pullout slack Cockpit prop spinner vacu-formed FAC Nats watched ship put up two flights 145 159 shown plans photographs carefully constructed type free wheeler rugged dependable extremely easy model trim likely minor adjustments will necessary make fly well Adjusting glide small model large free wheeling prop difficult following procedure recommended Prior installing rubber motor prop balance model point shown plan adding clay nose Next test glide model make appro priate adjustments stab rudder obtain floating glide hardly percep tible right turn important glide turn should too tight prevent spiralling under power accomplished remove clay install prop rubber motor wind slack out motor rebal ance same point lucky will balance did addition extra weight up weight model 145 gram motor 67 grams Theoretically grossly underpowered model comes out much lighter equip DT use category III Unlimited heavier may have use rubber get fly well longer motor 3 640 made 4 strands braided rubber might trick Braiding rubber helps reduce weight shift occurs exces sively long motors run out bunch up After braiding 40 inch motor will measure less 36 inches will take about 1500 turns keep 10/14 prop spinning good clip over minute never used such motor Chambermaid did use good results San Francisco although larger heavier model has same distance tween rear motor peg prop hook After motor prop installed crank about 200 turns give model heave should climb gently right doesntturn shim nose plug add right-thrust Minor stalling diving tendencies can also corrected thrust adjustments Try get good power pattern disturbing rudder elevator settings preserve glide model seems behaving increase number turns successive flight properly adjusted will amazed high model will climb well will glide big free wheeler up front would pleased hear anyone builds model address 53 Hall St Clifton NJ 07014 Jungmeister/McClure continued page 62 Power prototype Bu 131 production Jungmann provided Hirth HM 60R inverted in-line four-cylin der aircooled engine rated 80 hp Salient specifications Bu 131 given accom panying tables Extensive early acceptance con- hp sequent expanding production Bu 131 Jungmann motivated relocation Bucker facilities Rangsdorf Airport 1935 production improved Bu 131B initiated early 1936 Concurrently 1935/1936 historic Bucker Ru 133 Jungmeister designed developed prototype brought early production Briefly deferring discussion description Bu 133 Jungmeister salient specifications Bu 131 B Jungmann given accompanying table Changes compared Bu 13 IA essentially due employment new engine Hirth HM 504 inverted line four-cylinder aircooled rated 105 German production Ru 131 Jungmann having initiated later 1934 continued 1940 time other Bucker/Andersson designs prod uction eg Ru 181 Bestmann monoplane known several thousand Jungmann machines built Germany alone hundreds built Spain Japan Some 200 Jungmanns used Japanese Navy over thousand constructed Japanese Army Some Spanish examples Ru 131 completed until well 1960s usually concluded Bucker biplanes never actively armed aircraft However known 1942 April1979 115 Please send me......... copies new fourth edition Radio Control Buyers Guide Enclosed $600 copy ordered $525 Guide plus $75 postage & handling Total Enclosed ___________ anada City State ZIP Return Boynton & Assoc Clifton House Clifton VA 22024
Edition: Model Aviation - 1979/04
Page Numbers: 49, 50, 51, 52, 53, 113, 114, 115
One highly respected rubber scale models countrytwo firsts third FAC Scale Model Nats examplethis prewar racing plane offers naturally efficient layoutlong fuselage long nose shoulder wing sport/scale fan ensures long pretty flightsE Bill Henn curing racetarsi man aown outaii ion gets ott smootn launon Note parallel Inclination otarm snip flight othershipsappeartO Firecrackers Final round two survivors tension filledhow turns risk top other man Chambermaid Bummum .u..mu mmuuu mm .....mmuuu.muu.u.uu UUU U U EU mini Eu. .....uu.u U ENUEUEME UUUUUUUUU UU uummuummumuuumuummummuuumummumuuuuruuumuuumummmmuui Eummmm.mm..muuuuuu..u.uu.uuumuumuu mmu.uu.ummmm.uu...m.u. muumuummummmummm.uummuumuuumuumruu.u.uuu ummmuu.uu.muumuuuu.mul..mmu.u.I Im.uuu..uu...mu..uu.. mumuuummummruuuuuuuuuummmmuurmmmmmmumuI Em..U. ......uuum u.muuu... umuumumumuummr uuu. U..um.umum.uu umuEEuUuuUUI mm..mu.uu.m umuu..u.m mu....um..mr um.u.u.umI lmummukUUUUU IUUUUUEUEUUEU uu..uuuuuuI uuumummuumr .mu umu.u..u.ma I...uum.u. uuuummuum U.. 1mmu uumUUuu U.~1EU lummiu..m. Eu. mu U.I..u.uuml mu. Eu.um.um.ur uu U..u.m.. urn Em.mmmmm.mu 1Mm U.mm.uuu. mu mumm mmuummmmmmr mum mumam. uuuuumu mmml HUEiUUEC mm mm. JummumumuLmU qmuuuusEEm mum u..uumm. mum rmmmi ..mu.ummmmummUmmmmm. mmmmmummmmmmummmuumquamummi mummum mm..m mumumur muum umum mummum mummum mummummi mumummmmuuummmmmmmimumum umummumummmmmmmmuumwmm. mumummmmummmmmmmmmuimumum mummmmuummmmmmmmmumuuinUUi mmmmmummmmmummmumummumum mm ummumum ummumumum pimminmi mmmmuummmuuummummumumum mmmmmmmmmmmm.mmimmumi muummuuuumumuuummuu mJuumu mmmummmmummmmmmmmm umhjummummi mmmmmmumummummmmmm mumumumummum ummummmmmmmmmmumm mmummumummummi mmmmmumummmmummmr aummummumumum mumummum mmmmuininmminuinmmuui mummumumumummummummi immummum mum... umumummmummu ummummuin mumummummmm.u ummummummummmmmuumi ummmmmmmmmmmmmmmi mmumummumumi mumumumin mmmmmmuummmummmmu mmmmmmmmmmmumummummi Eummummmumummmmumh uuuuumuuumm uminmummin mmmmmummummuuummmu ummuumuummu mummummi mmmmummmmmmmmmmm aumummmummmmmuw mmumum mmmmmmmmummumummmmmummumumummum. umumumi mmmmmumummmmmmuiuinmmmmmu mmmumumumUummmmummLummmmmmmummmmmmmmmmminmi EmmmmmummmuumuummmmmumuumumummuumbuumummmmmE ummummmmmmmummmmmmmm--ummmummummmmmmuummmuumumumml mm. mum... mum... mmmmmm mu.uumm umummum mm mummum m mumum. mumum ummummum mu.. mum.. ummumummummum ummum_ma April 1979 49 ms up Slmulate6 rev triangular bloc ore 1/64 plywood p ium hub Note elm fouratrande 3 umg before blowln rally smaller low fell out sk over coni shoulder wing mode f6llowing v simplified 24-in Sm ounce lightei e performance d fli2hts 85yu isfaction th noothie led ect t meet ruseiage ano sun navt obLa An Florida 3 time crafi over ALt tatE RiDS eldS&ET WA ArL OT1 OF Re Wi aim-Smws- rnAR,tzS Au S-ixwez* Ptuco &LiR2S V.EReWTlIJ TZTAIA. ZI US$i AJ AS FiGR AS ir 4iUDo AAV Din- DSP w7W-rusa 8TA7TNA fIIjWTW0m4 I I1IIIAift ST T z3-UA ~ FAiSR-D LA*wv*wz OirwEjJ PTCH DNSJG D BY B LUEPJN CHAMBEMAItJ LITOM3A~I IFOUl*aS3YR3UR8CHE 54J DALE ETIDEET BVoN PARL ~ti OEoAEDR PA74JL ktS _Li _____________________________ LSIZE PLANS AVAILABLE SEE PAGE 120 ii II Li IJ III NO OCR TEXT NO OCR TEXT some new fliers permitted running launch assistant great ly helped experiencing difficulty Two problems arise launch torque reaction left second engine leans out quits com pletely hard launch solution first hard javelin type launch second problem eased soft launch Experimentation air pickup position tank height has usually helped us solve problem airplane nose dropped just prior launch engine can made load up some allowing such hard throw some accused making first pylon muscle power alone summary have operated largely within framework provided AMA 197 879 Provisional Rules l/2A Pylon have lots fun successful season have enticed number average fliers competitive event now have another vehicle getting aver age modelers interested competitive racing event feel should jealously guard against attempts substantially change its essential nature lesson past history available process present AMA events have evolved very simple good idea very specialized event small elite number participants per mitted specialists will take over refine event around capabilities interests average modeler will have machine shop extra dollars ac cess special parts fuels have skill experience construct competi tive racing machine larger communities will still enough fliers race smaller communities interest will dwindle until spark goes out Certainly name game racing let us keep original objectives mind keep event average modeler inexpensive easily constructed planes Chambermaid/Henn continued page 50 screw up like Wakefield fly 005 about 4 minutes some miracle about hour later retrieved model approxi mately mile downwind released flown over small forest several communities landed open area vicinity Needless say kept grounded until contest easily won Shell Greve Races placed third Scale During morning meet still damp air two flights clocked about 145 another 159 model wasnt flown again year until Spring 1978 FAC meet again won Shell Greve Races During July 1978 entered FAC Nats held Johnsville PA first day meet 15-minute thermal flight earned Chambermaid second place Scale next day nudged Bob Haden Jeanette PA has already won three 1ST PLACE Helicopter trophies Tn Valley Static Show Pittsburgh PA WRAMS RIG Jam boree White Plains NY Toledo Weak Signals 24th R/G Exposition Toledo Ohio super sharp highly modified Kaven Bell Jet Ranger Bob says As can see photo Formula-U really helped make highly detailed paint job turn out great base color Flight Aluminum Raven Black nose Metallic Red Fiery Orange Aviation Yellow trim Im happy tell Formula-U stands up tool Prior photo model flown 6 times plus friction wear transporting shows events over country happy proud Bob pleased Formula-Us perform ance hope will give try next model Heres few winning reasons might consider 18 popular Gloss Metallic Flat flight line colors matching brush spray Quick Drying One-Step System OneCoat Coverage Higher Gloss Finish Fuel-Proof Mar-Resistant Lightweight Super Tough AND matches Pactras Solarfilm Colors NEED FINISHING HELP! Send $100 complete step-by-step fully illustrated instruction book covering PACTRA FINISHING SYSTEMS 7060 HOLLYWOOD BLVD LOS ANGELES CA 90028 out first place few seconds Shell own Mr Smoothie contestants may fly two planes event caught some good air flight maxed son Billy talked using Smoothie instead better flying Cham bermaid Thompson Race stiff breeze blowing models launched dangerously close edge field turned out Billy right since Smoothie flew beyond field tree disqualified Chambermaids latest accomplishment winning Shell Greve Races during rainstorm October 1978 FAC bash competition encoun tered Connecticut meets about toughest found anywhere Winning kind nibber FF event Yankee territory never easy Construction model straight forward no unusual difficult aspects Choice wood paramount Use lightest contest balsa can find fuselage formers nose block wing ribs wing tips rudder stabilizer parts rest components constructed slightly firmer wood exception fuselage longerons hard balsa fuselage has flat sides makes easy assembly Once assembled sides can joined box-like fashion April1979 113 can winner too! WITH FORMULA-U POLYURETHANE FINISH FOR GAS POWERED MODELS FLASH STARTING UNEXCELLEG POWER Jo LONGER LIFE J6 LOWEST DRAIN GLOW PLUGS SWANSON ASSOCIATES EW JERSEY 0740 OW JERSEY 07440 using 1/16 sq crosspieces formers can glued crosspieces Most formers notched saves some sanding eliminates possibility misaligned stringers due improperly cut notches constructing wings jack up trailing edge near tips build about 3/16 washout important improves stability model Wing washes built prior covering permanent twisted after completion stabilizer built shown plan will far superior simple flatbottom structure will stronger warp resistant will generate lift allowing further aft center gravity greater latitude length weight rubber motor will permitted due rearward balance point rudder outline laminated three strips 1/16 X 1/32 balsa formed around cardboard form Soak strips water few minutes wipe off paper napkin Apply slightly thinned water base glue middle strip slap together work around form Fasten strips form small pieces masking tape dry resultant structure will have adequate strength much lighter laminated basswood built up conventional manner using sheetwood importance keeping tail comp onents light cannot overemphasized Mount wings fuselage prior covering before installing lowest top forward section stringers Simply poke protruding ends leading edge trailing edge spars through fuselage until bottom rib number butts up against top longeron Set incidence dihedral shown plan glue whole works together bottom junction trailing edges may have trimmed allow sufficient clearance rubber motor stringers previously omitted can now installed will have curved over wing spars shown photographs plans fair wing fuselage Some small sections 1/16 sheeting should added fuselage around points wing attaches add strength facilitate covering removable part nose block constructed disk 1/16 plywood glued 3 laminations a cross grained Make thrust bearing following manner Cut piece luminum tubing 9/16 long Push Peck Polymers PA-6 nylon bearing way end tube should tight press fit Drive another nylon bearing other end tube until butts up against its mate cut off flush end tubing Install completed assembly nose button least 20 down- right-thrust type bearing great Coupes Wakes Unlimiteds Use longer piece aluminum tubing drill out nylon bushings accommodate heavier wire fuselage wing assembly tail components can now covered color actual airplane creme Yellow closet color available Japanese Tissue used white tissue air brushed lightly thin mixture nitrate dope mud color Floquil railroad paint Use care warp lightly constructed rudder stabilizer covering such fragile structures generally preshrink tissue frame prior application additional shrinking results doping enough remove wrinkles pull out slack After covering rudder stabilizer can attached fuselage Dont fill area above stab until after trimming allow incidence adjustments cockpit canopy spinner vacu-formed single wheel 1-7/16 diameter /8 thick can formed turning piece balsa electric drill piece brass tubing can driven through balsa Hot Stuffed facili tate installation drill chuck wheel completed slice half fit bottom fuselage combination 10 diameter X 14 pitch prop 4 strands 3/16 X 30 FAI rubber worked well both Mr Smoothie Chambermaid dont have FAT stuff will just well Sig rubber usually takes few turns tires quickly Ive wound both types destruction clamped bench vise have found blow about 12501280 turns flying contests have never put 950 winds simply because was necessary win comfortable margin prefer use laminated props aluminum tubing hubs race planes because easy build will withstand much abuse blades made sheet 1/64 plywood piece 1/32 balsa laminated top form shown plan can used purpose form can also used jig set blades hub proper angle Details hub free-wheeling device 114 Model Aviation EXPERT BUILDERS WANTED Send us list accomplishments photos planes PIPER TRI-PACER Quarter Scale 89 wingspan 42 Sq Ft detailed plans 5 PP CURTIS HAWK P-O-E 60 wingspan 46 Sq Ft super detailed scale plans $1295 P P Send $1 00 fur list built-up Planes & 50% Ott Sale Hobby Capitol 01st 46 N Oak St Ventura Ca 93001 Ph -805-643-7616 CUSTOM TUNED ENGINES COMPETITION ACCESSORIES Cox 0491051 Specialists brochure send 15c stamp Kustom Kraftsmanship Brochure Box 2699 Laguna Hills CA 92653 714 830-5162 Chambermaid some trophies has won preshrink JdJJEIUGU IIGSUU 10 ayoio warping depends dope remove wrinkles pullout slack Cockpit prop spinner vacu-formed FAC Nats watched ship put up two flights 145 159 shown plans photographs carefully constructed type free wheeler rugged dependable extremely easy model trim likely minor adjustments will necessary make fly well Adjusting glide small model large free wheeling prop difficult following procedure recommended Prior installing rubber motor prop balance model point shown plan adding clay nose Next test glide model make appro priate adjustments stab rudder obtain floating glide hardly percep tible right turn important glide turn should too tight prevent spiralling under power accomplished remove clay install prop rubber motor wind slack out motor rebal ance same point lucky will balance did addition extra weight up weight model 145 gram motor 67 grams Theoretically grossly underpowered model comes out much lighter equip DT use category III Unlimited heavier may have use rubber get fly well longer motor 3 640 made 4 strands braided rubber might trick Braiding rubber helps reduce weight shift occurs exces sively long motors run out bunch up After braiding 40 inch motor will measure less 36 inches will take about 1500 turns keep 10/14 prop spinning good clip over minute never used such motor Chambermaid did use good results San Francisco although larger heavier model has same distance tween rear motor peg prop hook After motor prop installed crank about 200 turns give model heave should climb gently right doesntturn shim nose plug add right-thrust Minor stalling diving tendencies can also corrected thrust adjustments Try get good power pattern disturbing rudder elevator settings preserve glide model seems behaving increase number turns successive flight properly adjusted will amazed high model will climb well will glide big free wheeler up front would pleased hear anyone builds model address 53 Hall St Clifton NJ 07014 Jungmeister/McClure continued page 62 Power prototype Bu 131 production Jungmann provided Hirth HM 60R inverted in-line four-cylin der aircooled engine rated 80 hp Salient specifications Bu 131 given accom panying tables Extensive early acceptance con- hp sequent expanding production Bu 131 Jungmann motivated relocation Bucker facilities Rangsdorf Airport 1935 production improved Bu 131B initiated early 1936 Concurrently 1935/1936 historic Bucker Ru 133 Jungmeister designed developed prototype brought early production Briefly deferring discussion description Bu 133 Jungmeister salient specifications Bu 131 B Jungmann given accompanying table Changes compared Bu 13 IA essentially due employment new engine Hirth HM 504 inverted line four-cylinder aircooled rated 105 German production Ru 131 Jungmann having initiated later 1934 continued 1940 time other Bucker/Andersson designs prod uction eg Ru 181 Bestmann monoplane known several thousand Jungmann machines built Germany alone hundreds built Spain Japan Some 200 Jungmanns used Japanese Navy over thousand constructed Japanese Army Some Spanish examples Ru 131 completed until well 1960s usually concluded Bucker biplanes never actively armed aircraft However known 1942 April1979 115 Please send me......... copies new fourth edition Radio Control Buyers Guide Enclosed $600 copy ordered $525 Guide plus $75 postage & handling Total Enclosed ___________ anada City State ZIP Return Boynton & Assoc Clifton House Clifton VA 22024
Edition: Model Aviation - 1979/04
Page Numbers: 49, 50, 51, 52, 53, 113, 114, 115
One highly respected rubber scale models countrytwo firsts third FAC Scale Model Nats examplethis prewar racing plane offers naturally efficient layoutlong fuselage long nose shoulder wing sport/scale fan ensures long pretty flightsE Bill Henn curing racetarsi man aown outaii ion gets ott smootn launon Note parallel Inclination otarm snip flight othershipsappeartO Firecrackers Final round two survivors tension filledhow turns risk top other man Chambermaid Bummum .u..mu mmuuu mm .....mmuuu.muu.u.uu UUU U U EU mini Eu. .....uu.u U ENUEUEME UUUUUUUUU UU uummuummumuuumuummummuuumummumuuuuruuumuuumummmmuui Eummmm.mm..muuuuuu..u.uu.uuumuumuu mmu.uu.ummmm.uu...m.u. muumuummummmummm.uummuumuuumuumruu.u.uuu ummmuu.uu.muumuuuu.mul..mmu.u.I Im.uuu..uu...mu..uu.. mumuuummummruuuuuuuuuummmmuurmmmmmmumuI Em..U. ......uuum u.muuu... umuumumumuummr uuu. U..um.umum.uu umuEEuUuuUUI mm..mu.uu.m umuu..u.m mu....um..mr um.u.u.umI lmummukUUUUU IUUUUUEUEUUEU uu..uuuuuuI uuumummuumr .mu umu.u..u.ma I...uum.u. uuuummuum U.. 1mmu uumUUuu U.~1EU lummiu..m. Eu. mu U.I..u.uuml mu. Eu.um.um.ur uu U..u.m.. urn Em.mmmmm.mu 1Mm U.mm.uuu. mu mumm mmuummmmmmr mum mumam. uuuuumu mmml HUEiUUEC mm mm. JummumumuLmU qmuuuusEEm mum u..uumm. mum rmmmi ..mu.ummmmummUmmmmm. mmmmmummmmmmummmuumquamummi mummum mm..m mumumur muum umum mummum mummum mummummi mumummmmuuummmmmmmimumum umummumummmmmmmmuumwmm. mumummmmummmmmmmmmuimumum mummmmuummmmmmmmmumuuinUUi mmmmmummmmmummmumummumum mm ummumum ummumumum pimminmi mmmmuummmuuummummumumum mmmmmmmmmmmm.mmimmumi muummuuuumumuuummuu mJuumu mmmummmmummmmmmmmm umhjummummi mmmmmmumummummmmmm mumumumummum ummummmmmmmmmmumm mmummumummummi mmmmmumummmmummmr aummummumumum mumummum mmmmuininmminuinmmuui mummumumumummummummi immummum mum... umumummmummu ummummuin mumummummmm.u ummummummummmmmuumi ummmmmmmmmmmmmmmi mmumummumumi mumumumin mmmmmmuummmummmmu mmmmmmmmmmmumummummi Eummummmumummmmumh uuuuumuuumm uminmummin mmmmmummummuuummmu ummuumuummu mummummi mmmmummmmmmmmmmm aumummmummmmmuw mmumum mmmmmmmmummumummmmmummumumummum. umumumi mmmmmumummmmmmuiuinmmmmmu mmmumumumUummmmummLummmmmmmummmmmmmmmmminmi EmmmmmummmuumuummmmmumuumumummuumbuumummmmmE ummummmmmmmummmmmmmm--ummmummummmmmmuummmuumumumml mm. mum... mum... mmmmmm mu.uumm umummum mm mummum m mumum. mumum ummummum mu.. mum.. ummumummummum ummum_ma April 1979 49 ms up Slmulate6 rev triangular bloc ore 1/64 plywood p ium hub Note elm fouratrande 3 umg before blowln rally smaller low fell out sk over coni shoulder wing mode f6llowing v simplified 24-in Sm ounce lightei e performance d fli2hts 85yu isfaction th noothie led ect t meet ruseiage ano sun navt obLa An Florida 3 time crafi over ALt tatE RiDS eldS&ET WA ArL OT1 OF Re Wi aim-Smws- rnAR,tzS Au S-ixwez* Ptuco &LiR2S V.EReWTlIJ TZTAIA. ZI US$i AJ AS FiGR AS ir 4iUDo AAV Din- DSP w7W-rusa 8TA7TNA fIIjWTW0m4 I I1IIIAift ST T z3-UA ~ FAiSR-D LA*wv*wz OirwEjJ PTCH DNSJG D BY B LUEPJN CHAMBEMAItJ LITOM3A~I IFOUl*aS3YR3UR8CHE 54J DALE ETIDEET BVoN PARL ~ti OEoAEDR PA74JL ktS _Li _____________________________ LSIZE PLANS AVAILABLE SEE PAGE 120 ii II Li IJ III NO OCR TEXT NO OCR TEXT some new fliers permitted running launch assistant great ly helped experiencing difficulty Two problems arise launch torque reaction left second engine leans out quits com pletely hard launch solution first hard javelin type launch second problem eased soft launch Experimentation air pickup position tank height has usually helped us solve problem airplane nose dropped just prior launch engine can made load up some allowing such hard throw some accused making first pylon muscle power alone summary have operated largely within framework provided AMA 197 879 Provisional Rules l/2A Pylon have lots fun successful season have enticed number average fliers competitive event now have another vehicle getting aver age modelers interested competitive racing event feel should jealously guard against attempts substantially change its essential nature lesson past history available process present AMA events have evolved very simple good idea very specialized event small elite number participants per mitted specialists will take over refine event around capabilities interests average modeler will have machine shop extra dollars ac cess special parts fuels have skill experience construct competi tive racing machine larger communities will still enough fliers race smaller communities interest will dwindle until spark goes out Certainly name game racing let us keep original objectives mind keep event average modeler inexpensive easily constructed planes Chambermaid/Henn continued page 50 screw up like Wakefield fly 005 about 4 minutes some miracle about hour later retrieved model approxi mately mile downwind released flown over small forest several communities landed open area vicinity Needless say kept grounded until contest easily won Shell Greve Races placed third Scale During morning meet still damp air two flights clocked about 145 another 159 model wasnt flown again year until Spring 1978 FAC meet again won Shell Greve Races During July 1978 entered FAC Nats held Johnsville PA first day meet 15-minute thermal flight earned Chambermaid second place Scale next day nudged Bob Haden Jeanette PA has already won three 1ST PLACE Helicopter trophies Tn Valley Static Show Pittsburgh PA WRAMS RIG Jam boree White Plains NY Toledo Weak Signals 24th R/G Exposition Toledo Ohio super sharp highly modified Kaven Bell Jet Ranger Bob says As can see photo Formula-U really helped make highly detailed paint job turn out great base color Flight Aluminum Raven Black nose Metallic Red Fiery Orange Aviation Yellow trim Im happy tell Formula-U stands up tool Prior photo model flown 6 times plus friction wear transporting shows events over country happy proud Bob pleased Formula-Us perform ance hope will give try next model Heres few winning reasons might consider 18 popular Gloss Metallic Flat flight line colors matching brush spray Quick Drying One-Step System OneCoat Coverage Higher Gloss Finish Fuel-Proof Mar-Resistant Lightweight Super Tough AND matches Pactras Solarfilm Colors NEED FINISHING HELP! Send $100 complete step-by-step fully illustrated instruction book covering PACTRA FINISHING SYSTEMS 7060 HOLLYWOOD BLVD LOS ANGELES CA 90028 out first place few seconds Shell own Mr Smoothie contestants may fly two planes event caught some good air flight maxed son Billy talked using Smoothie instead better flying Cham bermaid Thompson Race stiff breeze blowing models launched dangerously close edge field turned out Billy right since Smoothie flew beyond field tree disqualified Chambermaids latest accomplishment winning Shell Greve Races during rainstorm October 1978 FAC bash competition encoun tered Connecticut meets about toughest found anywhere Winning kind nibber FF event Yankee territory never easy Construction model straight forward no unusual difficult aspects Choice wood paramount Use lightest contest balsa can find fuselage formers nose block wing ribs wing tips rudder stabilizer parts rest components constructed slightly firmer wood exception fuselage longerons hard balsa fuselage has flat sides makes easy assembly Once assembled sides can joined box-like fashion April1979 113 can winner too! WITH FORMULA-U POLYURETHANE FINISH FOR GAS POWERED MODELS FLASH STARTING UNEXCELLEG POWER Jo LONGER LIFE J6 LOWEST DRAIN GLOW PLUGS SWANSON ASSOCIATES EW JERSEY 0740 OW JERSEY 07440 using 1/16 sq crosspieces formers can glued crosspieces Most formers notched saves some sanding eliminates possibility misaligned stringers due improperly cut notches constructing wings jack up trailing edge near tips build about 3/16 washout important improves stability model Wing washes built prior covering permanent twisted after completion stabilizer built shown plan will far superior simple flatbottom structure will stronger warp resistant will generate lift allowing further aft center gravity greater latitude length weight rubber motor will permitted due rearward balance point rudder outline laminated three strips 1/16 X 1/32 balsa formed around cardboard form Soak strips water few minutes wipe off paper napkin Apply slightly thinned water base glue middle strip slap together work around form Fasten strips form small pieces masking tape dry resultant structure will have adequate strength much lighter laminated basswood built up conventional manner using sheetwood importance keeping tail comp onents light cannot overemphasized Mount wings fuselage prior covering before installing lowest top forward section stringers Simply poke protruding ends leading edge trailing edge spars through fuselage until bottom rib number butts up against top longeron Set incidence dihedral shown plan glue whole works together bottom junction trailing edges may have trimmed allow sufficient clearance rubber motor stringers previously omitted can now installed will have curved over wing spars shown photographs plans fair wing fuselage Some small sections 1/16 sheeting should added fuselage around points wing attaches add strength facilitate covering removable part nose block constructed disk 1/16 plywood glued 3 laminations a cross grained Make thrust bearing following manner Cut piece luminum tubing 9/16 long Push Peck Polymers PA-6 nylon bearing way end tube should tight press fit Drive another nylon bearing other end tube until butts up against its mate cut off flush end tubing Install completed assembly nose button least 20 down- right-thrust type bearing great Coupes Wakes Unlimiteds Use longer piece aluminum tubing drill out nylon bushings accommodate heavier wire fuselage wing assembly tail components can now covered color actual airplane creme Yellow closet color available Japanese Tissue used white tissue air brushed lightly thin mixture nitrate dope mud color Floquil railroad paint Use care warp lightly constructed rudder stabilizer covering such fragile structures generally preshrink tissue frame prior application additional shrinking results doping enough remove wrinkles pull out slack After covering rudder stabilizer can attached fuselage Dont fill area above stab until after trimming allow incidence adjustments cockpit canopy spinner vacu-formed single wheel 1-7/16 diameter /8 thick can formed turning piece balsa electric drill piece brass tubing can driven through balsa Hot Stuffed facili tate installation drill chuck wheel completed slice half fit bottom fuselage combination 10 diameter X 14 pitch prop 4 strands 3/16 X 30 FAI rubber worked well both Mr Smoothie Chambermaid dont have FAT stuff will just well Sig rubber usually takes few turns tires quickly Ive wound both types destruction clamped bench vise have found blow about 12501280 turns flying contests have never put 950 winds simply because was necessary win comfortable margin prefer use laminated props aluminum tubing hubs race planes because easy build will withstand much abuse blades made sheet 1/64 plywood piece 1/32 balsa laminated top form shown plan can used purpose form can also used jig set blades hub proper angle Details hub free-wheeling device 114 Model Aviation EXPERT BUILDERS WANTED Send us list accomplishments photos planes PIPER TRI-PACER Quarter Scale 89 wingspan 42 Sq Ft detailed plans 5 PP CURTIS HAWK P-O-E 60 wingspan 46 Sq Ft super detailed scale plans $1295 P P Send $1 00 fur list built-up Planes & 50% Ott Sale Hobby Capitol 01st 46 N Oak St Ventura Ca 93001 Ph -805-643-7616 CUSTOM TUNED ENGINES COMPETITION ACCESSORIES Cox 0491051 Specialists brochure send 15c stamp Kustom Kraftsmanship Brochure Box 2699 Laguna Hills CA 92653 714 830-5162 Chambermaid some trophies has won preshrink JdJJEIUGU IIGSUU 10 ayoio warping depends dope remove wrinkles pullout slack Cockpit prop spinner vacu-formed FAC Nats watched ship put up two flights 145 159 shown plans photographs carefully constructed type free wheeler rugged dependable extremely easy model trim likely minor adjustments will necessary make fly well Adjusting glide small model large free wheeling prop difficult following procedure recommended Prior installing rubber motor prop balance model point shown plan adding clay nose Next test glide model make appro priate adjustments stab rudder obtain floating glide hardly percep tible right turn important glide turn should too tight prevent spiralling under power accomplished remove clay install prop rubber motor wind slack out motor rebal ance same point lucky will balance did addition extra weight up weight model 145 gram motor 67 grams Theoretically grossly underpowered model comes out much lighter equip DT use category III Unlimited heavier may have use rubber get fly well longer motor 3 640 made 4 strands braided rubber might trick Braiding rubber helps reduce weight shift occurs exces sively long motors run out bunch up After braiding 40 inch motor will measure less 36 inches will take about 1500 turns keep 10/14 prop spinning good clip over minute never used such motor Chambermaid did use good results San Francisco although larger heavier model has same distance tween rear motor peg prop hook After motor prop installed crank about 200 turns give model heave should climb gently right doesntturn shim nose plug add right-thrust Minor stalling diving tendencies can also corrected thrust adjustments Try get good power pattern disturbing rudder elevator settings preserve glide model seems behaving increase number turns successive flight properly adjusted will amazed high model will climb well will glide big free wheeler up front would pleased hear anyone builds model address 53 Hall St Clifton NJ 07014 Jungmeister/McClure continued page 62 Power prototype Bu 131 production Jungmann provided Hirth HM 60R inverted in-line four-cylin der aircooled engine rated 80 hp Salient specifications Bu 131 given accom panying tables Extensive early acceptance con- hp sequent expanding production Bu 131 Jungmann motivated relocation Bucker facilities Rangsdorf Airport 1935 production improved Bu 131B initiated early 1936 Concurrently 1935/1936 historic Bucker Ru 133 Jungmeister designed developed prototype brought early production Briefly deferring discussion description Bu 133 Jungmeister salient specifications Bu 131 B Jungmann given accompanying table Changes compared Bu 13 IA essentially due employment new engine Hirth HM 504 inverted line four-cylinder aircooled rated 105 German production Ru 131 Jungmann having initiated later 1934 continued 1940 time other Bucker/Andersson designs prod uction eg Ru 181 Bestmann monoplane known several thousand Jungmann machines built Germany alone hundreds built Spain Japan Some 200 Jungmanns used Japanese Navy over thousand constructed Japanese Army Some Spanish examples Ru 131 completed until well 1960s usually concluded Bucker biplanes never actively armed aircraft However known 1942 April1979 115 Please send me......... copies new fourth edition Radio Control Buyers Guide Enclosed $600 copy ordered $525 Guide plus $75 postage & handling Total Enclosed ___________ anada City State ZIP Return Boynton & Assoc Clifton House Clifton VA 22024
Edition: Model Aviation - 1979/04
Page Numbers: 49, 50, 51, 52, 53, 113, 114, 115
One highly respected rubber scale models countrytwo firsts third FAC Scale Model Nats examplethis prewar racing plane offers naturally efficient layoutlong fuselage long nose shoulder wing sport/scale fan ensures long pretty flightsE Bill Henn curing racetarsi man aown outaii ion gets ott smootn launon Note parallel Inclination otarm snip flight othershipsappeartO Firecrackers Final round two survivors tension filledhow turns risk top other man Chambermaid Bummum .u..mu mmuuu mm .....mmuuu.muu.u.uu UUU U U EU mini Eu. .....uu.u U ENUEUEME UUUUUUUUU UU uummuummumuuumuummummuuumummumuuuuruuumuuumummmmuui Eummmm.mm..muuuuuu..u.uu.uuumuumuu mmu.uu.ummmm.uu...m.u. muumuummummmummm.uummuumuuumuumruu.u.uuu ummmuu.uu.muumuuuu.mul..mmu.u.I Im.uuu..uu...mu..uu.. mumuuummummruuuuuuuuuummmmuurmmmmmmumuI Em..U. ......uuum u.muuu... umuumumumuummr uuu. U..um.umum.uu umuEEuUuuUUI mm..mu.uu.m umuu..u.m mu....um..mr um.u.u.umI lmummukUUUUU IUUUUUEUEUUEU uu..uuuuuuI uuumummuumr .mu umu.u..u.ma I...uum.u. uuuummuum U.. 1mmu uumUUuu U.~1EU lummiu..m. Eu. mu U.I..u.uuml mu. Eu.um.um.ur uu U..u.m.. urn Em.mmmmm.mu 1Mm U.mm.uuu. mu mumm mmuummmmmmr mum mumam. uuuuumu mmml HUEiUUEC mm mm. JummumumuLmU qmuuuusEEm mum u..uumm. mum rmmmi ..mu.ummmmummUmmmmm. mmmmmummmmmmummmuumquamummi mummum mm..m mumumur muum umum mummum mummum mummummi mumummmmuuummmmmmmimumum umummumummmmmmmmuumwmm. mumummmmummmmmmmmmuimumum mummmmuummmmmmmmmumuuinUUi mmmmmummmmmummmumummumum mm ummumum ummumumum pimminmi mmmmuummmuuummummumumum mmmmmmmmmmmm.mmimmumi muummuuuumumuuummuu mJuumu mmmummmmummmmmmmmm umhjummummi mmmmmmumummummmmmm mumumumummum ummummmmmmmmmmumm mmummumummummi mmmmmumummmmummmr aummummumumum mumummum mmmmuininmminuinmmuui mummumumumummummummi immummum mum... umumummmummu ummummuin mumummummmm.u ummummummummmmmuumi ummmmmmmmmmmmmmmi mmumummumumi mumumumin mmmmmmuummmummmmu mmmmmmmmmmmumummummi Eummummmumummmmumh uuuuumuuumm uminmummin mmmmmummummuuummmu ummuumuummu mummummi mmmmummmmmmmmmmm aumummmummmmmuw mmumum mmmmmmmmummumummmmmummumumummum. umumumi mmmmmumummmmmmuiuinmmmmmu mmmumumumUummmmummLummmmmmmummmmmmmmmmminmi EmmmmmummmuumuummmmmumuumumummuumbuumummmmmE ummummmmmmmummmmmmmm--ummmummummmmmmuummmuumumumml mm. mum... mum... mmmmmm mu.uumm umummum mm mummum m mumum. mumum ummummum mu.. mum.. ummumummummum ummum_ma April 1979 49 ms up Slmulate6 rev triangular bloc ore 1/64 plywood p ium hub Note elm fouratrande 3 umg before blowln rally smaller low fell out sk over coni shoulder wing mode f6llowing v simplified 24-in Sm ounce lightei e performance d fli2hts 85yu isfaction th noothie led ect t meet ruseiage ano sun navt obLa An Florida 3 time crafi over ALt tatE RiDS eldS&ET WA ArL OT1 OF Re Wi aim-Smws- rnAR,tzS Au S-ixwez* Ptuco &LiR2S V.EReWTlIJ TZTAIA. ZI US$i AJ AS FiGR AS ir 4iUDo AAV Din- DSP w7W-rusa 8TA7TNA fIIjWTW0m4 I I1IIIAift ST T z3-UA ~ FAiSR-D LA*wv*wz OirwEjJ PTCH DNSJG D BY B LUEPJN CHAMBEMAItJ LITOM3A~I IFOUl*aS3YR3UR8CHE 54J DALE ETIDEET BVoN PARL ~ti OEoAEDR PA74JL ktS _Li _____________________________ LSIZE PLANS AVAILABLE SEE PAGE 120 ii II Li IJ III NO OCR TEXT NO OCR TEXT some new fliers permitted running launch assistant great ly helped experiencing difficulty Two problems arise launch torque reaction left second engine leans out quits com pletely hard launch solution first hard javelin type launch second problem eased soft launch Experimentation air pickup position tank height has usually helped us solve problem airplane nose dropped just prior launch engine can made load up some allowing such hard throw some accused making first pylon muscle power alone summary have operated largely within framework provided AMA 197 879 Provisional Rules l/2A Pylon have lots fun successful season have enticed number average fliers competitive event now have another vehicle getting aver age modelers interested competitive racing event feel should jealously guard against attempts substantially change its essential nature lesson past history available process present AMA events have evolved very simple good idea very specialized event small elite number participants per mitted specialists will take over refine event around capabilities interests average modeler will have machine shop extra dollars ac cess special parts fuels have skill experience construct competi tive racing machine larger communities will still enough fliers race smaller communities interest will dwindle until spark goes out Certainly name game racing let us keep original objectives mind keep event average modeler inexpensive easily constructed planes Chambermaid/Henn continued page 50 screw up like Wakefield fly 005 about 4 minutes some miracle about hour later retrieved model approxi mately mile downwind released flown over small forest several communities landed open area vicinity Needless say kept grounded until contest easily won Shell Greve Races placed third Scale During morning meet still damp air two flights clocked about 145 another 159 model wasnt flown again year until Spring 1978 FAC meet again won Shell Greve Races During July 1978 entered FAC Nats held Johnsville PA first day meet 15-minute thermal flight earned Chambermaid second place Scale next day nudged Bob Haden Jeanette PA has already won three 1ST PLACE Helicopter trophies Tn Valley Static Show Pittsburgh PA WRAMS RIG Jam boree White Plains NY Toledo Weak Signals 24th R/G Exposition Toledo Ohio super sharp highly modified Kaven Bell Jet Ranger Bob says As can see photo Formula-U really helped make highly detailed paint job turn out great base color Flight Aluminum Raven Black nose Metallic Red Fiery Orange Aviation Yellow trim Im happy tell Formula-U stands up tool Prior photo model flown 6 times plus friction wear transporting shows events over country happy proud Bob pleased Formula-Us perform ance hope will give try next model Heres few winning reasons might consider 18 popular Gloss Metallic Flat flight line colors matching brush spray Quick Drying One-Step System OneCoat Coverage Higher Gloss Finish Fuel-Proof Mar-Resistant Lightweight Super Tough AND matches Pactras Solarfilm Colors NEED FINISHING HELP! Send $100 complete step-by-step fully illustrated instruction book covering PACTRA FINISHING SYSTEMS 7060 HOLLYWOOD BLVD LOS ANGELES CA 90028 out first place few seconds Shell own Mr Smoothie contestants may fly two planes event caught some good air flight maxed son Billy talked using Smoothie instead better flying Cham bermaid Thompson Race stiff breeze blowing models launched dangerously close edge field turned out Billy right since Smoothie flew beyond field tree disqualified Chambermaids latest accomplishment winning Shell Greve Races during rainstorm October 1978 FAC bash competition encoun tered Connecticut meets about toughest found anywhere Winning kind nibber FF event Yankee territory never easy Construction model straight forward no unusual difficult aspects Choice wood paramount Use lightest contest balsa can find fuselage formers nose block wing ribs wing tips rudder stabilizer parts rest components constructed slightly firmer wood exception fuselage longerons hard balsa fuselage has flat sides makes easy assembly Once assembled sides can joined box-like fashion April1979 113 can winner too! WITH FORMULA-U POLYURETHANE FINISH FOR GAS POWERED MODELS FLASH STARTING UNEXCELLEG POWER Jo LONGER LIFE J6 LOWEST DRAIN GLOW PLUGS SWANSON ASSOCIATES EW JERSEY 0740 OW JERSEY 07440 using 1/16 sq crosspieces formers can glued crosspieces Most formers notched saves some sanding eliminates possibility misaligned stringers due improperly cut notches constructing wings jack up trailing edge near tips build about 3/16 washout important improves stability model Wing washes built prior covering permanent twisted after completion stabilizer built shown plan will far superior simple flatbottom structure will stronger warp resistant will generate lift allowing further aft center gravity greater latitude length weight rubber motor will permitted due rearward balance point rudder outline laminated three strips 1/16 X 1/32 balsa formed around cardboard form Soak strips water few minutes wipe off paper napkin Apply slightly thinned water base glue middle strip slap together work around form Fasten strips form small pieces masking tape dry resultant structure will have adequate strength much lighter laminated basswood built up conventional manner using sheetwood importance keeping tail comp onents light cannot overemphasized Mount wings fuselage prior covering before installing lowest top forward section stringers Simply poke protruding ends leading edge trailing edge spars through fuselage until bottom rib number butts up against top longeron Set incidence dihedral shown plan glue whole works together bottom junction trailing edges may have trimmed allow sufficient clearance rubber motor stringers previously omitted can now installed will have curved over wing spars shown photographs plans fair wing fuselage Some small sections 1/16 sheeting should added fuselage around points wing attaches add strength facilitate covering removable part nose block constructed disk 1/16 plywood glued 3 laminations a cross grained Make thrust bearing following manner Cut piece luminum tubing 9/16 long Push Peck Polymers PA-6 nylon bearing way end tube should tight press fit Drive another nylon bearing other end tube until butts up against its mate cut off flush end tubing Install completed assembly nose button least 20 down- right-thrust type bearing great Coupes Wakes Unlimiteds Use longer piece aluminum tubing drill out nylon bushings accommodate heavier wire fuselage wing assembly tail components can now covered color actual airplane creme Yellow closet color available Japanese Tissue used white tissue air brushed lightly thin mixture nitrate dope mud color Floquil railroad paint Use care warp lightly constructed rudder stabilizer covering such fragile structures generally preshrink tissue frame prior application additional shrinking results doping enough remove wrinkles pull out slack After covering rudder stabilizer can attached fuselage Dont fill area above stab until after trimming allow incidence adjustments cockpit canopy spinner vacu-formed single wheel 1-7/16 diameter /8 thick can formed turning piece balsa electric drill piece brass tubing can driven through balsa Hot Stuffed facili tate installation drill chuck wheel completed slice half fit bottom fuselage combination 10 diameter X 14 pitch prop 4 strands 3/16 X 30 FAI rubber worked well both Mr Smoothie Chambermaid dont have FAT stuff will just well Sig rubber usually takes few turns tires quickly Ive wound both types destruction clamped bench vise have found blow about 12501280 turns flying contests have never put 950 winds simply because was necessary win comfortable margin prefer use laminated props aluminum tubing hubs race planes because easy build will withstand much abuse blades made sheet 1/64 plywood piece 1/32 balsa laminated top form shown plan can used purpose form can also used jig set blades hub proper angle Details hub free-wheeling device 114 Model Aviation EXPERT BUILDERS WANTED Send us list accomplishments photos planes PIPER TRI-PACER Quarter Scale 89 wingspan 42 Sq Ft detailed plans 5 PP CURTIS HAWK P-O-E 60 wingspan 46 Sq Ft super detailed scale plans $1295 P P Send $1 00 fur list built-up Planes & 50% Ott Sale Hobby Capitol 01st 46 N Oak St Ventura Ca 93001 Ph -805-643-7616 CUSTOM TUNED ENGINES COMPETITION ACCESSORIES Cox 0491051 Specialists brochure send 15c stamp Kustom Kraftsmanship Brochure Box 2699 Laguna Hills CA 92653 714 830-5162 Chambermaid some trophies has won preshrink JdJJEIUGU IIGSUU 10 ayoio warping depends dope remove wrinkles pullout slack Cockpit prop spinner vacu-formed FAC Nats watched ship put up two flights 145 159 shown plans photographs carefully constructed type free wheeler rugged dependable extremely easy model trim likely minor adjustments will necessary make fly well Adjusting glide small model large free wheeling prop difficult following procedure recommended Prior installing rubber motor prop balance model point shown plan adding clay nose Next test glide model make appro priate adjustments stab rudder obtain floating glide hardly percep tible right turn important glide turn should too tight prevent spiralling under power accomplished remove clay install prop rubber motor wind slack out motor rebal ance same point lucky will balance did addition extra weight up weight model 145 gram motor 67 grams Theoretically grossly underpowered model comes out much lighter equip DT use category III Unlimited heavier may have use rubber get fly well longer motor 3 640 made 4 strands braided rubber might trick Braiding rubber helps reduce weight shift occurs exces sively long motors run out bunch up After braiding 40 inch motor will measure less 36 inches will take about 1500 turns keep 10/14 prop spinning good clip over minute never used such motor Chambermaid did use good results San Francisco although larger heavier model has same distance tween rear motor peg prop hook After motor prop installed crank about 200 turns give model heave should climb gently right doesntturn shim nose plug add right-thrust Minor stalling diving tendencies can also corrected thrust adjustments Try get good power pattern disturbing rudder elevator settings preserve glide model seems behaving increase number turns successive flight properly adjusted will amazed high model will climb well will glide big free wheeler up front would pleased hear anyone builds model address 53 Hall St Clifton NJ 07014 Jungmeister/McClure continued page 62 Power prototype Bu 131 production Jungmann provided Hirth HM 60R inverted in-line four-cylin der aircooled engine rated 80 hp Salient specifications Bu 131 given accom panying tables Extensive early acceptance con- hp sequent expanding production Bu 131 Jungmann motivated relocation Bucker facilities Rangsdorf Airport 1935 production improved Bu 131B initiated early 1936 Concurrently 1935/1936 historic Bucker Ru 133 Jungmeister designed developed prototype brought early production Briefly deferring discussion description Bu 133 Jungmeister salient specifications Bu 131 B Jungmann given accompanying table Changes compared Bu 13 IA essentially due employment new engine Hirth HM 504 inverted line four-cylinder aircooled rated 105 German production Ru 131 Jungmann having initiated later 1934 continued 1940 time other Bucker/Andersson designs prod uction eg Ru 181 Bestmann monoplane known several thousand Jungmann machines built Germany alone hundreds built Spain Japan Some 200 Jungmanns used Japanese Navy over thousand constructed Japanese Army Some Spanish examples Ru 131 completed until well 1960s usually concluded Bucker biplanes never actively armed aircraft However known 1942 April1979 115 Please send me......... copies new fourth edition Radio Control Buyers Guide Enclosed $600 copy ordered $525 Guide plus $75 postage & handling Total Enclosed ___________ anada City State ZIP Return Boynton & Assoc Clifton House Clifton VA 22024
Edition: Model Aviation - 1979/04
Page Numbers: 49, 50, 51, 52, 53, 113, 114, 115
One highly respected rubber scale models countrytwo firsts third FAC Scale Model Nats examplethis prewar racing plane offers naturally efficient layoutlong fuselage long nose shoulder wing sport/scale fan ensures long pretty flightsE Bill Henn curing racetarsi man aown outaii ion gets ott smootn launon Note parallel Inclination otarm snip flight othershipsappeartO Firecrackers Final round two survivors tension filledhow turns risk top other man Chambermaid Bummum .u..mu mmuuu mm .....mmuuu.muu.u.uu UUU U U EU mini Eu. .....uu.u U ENUEUEME UUUUUUUUU UU uummuummumuuumuummummuuumummumuuuuruuumuuumummmmuui Eummmm.mm..muuuuuu..u.uu.uuumuumuu mmu.uu.ummmm.uu...m.u. muumuummummmummm.uummuumuuumuumruu.u.uuu ummmuu.uu.muumuuuu.mul..mmu.u.I Im.uuu..uu...mu..uu.. mumuuummummruuuuuuuuuummmmuurmmmmmmumuI Em..U. ......uuum u.muuu... umuumumumuummr uuu. U..um.umum.uu umuEEuUuuUUI mm..mu.uu.m umuu..u.m mu....um..mr um.u.u.umI lmummukUUUUU IUUUUUEUEUUEU uu..uuuuuuI uuumummuumr .mu umu.u..u.ma I...uum.u. uuuummuum U.. 1mmu uumUUuu U.~1EU lummiu..m. Eu. mu U.I..u.uuml mu. Eu.um.um.ur uu U..u.m.. urn Em.mmmmm.mu 1Mm U.mm.uuu. mu mumm mmuummmmmmr mum mumam. uuuuumu mmml HUEiUUEC mm mm. JummumumuLmU qmuuuusEEm mum u..uumm. mum rmmmi ..mu.ummmmummUmmmmm. mmmmmummmmmmummmuumquamummi mummum mm..m mumumur muum umum mummum mummum mummummi mumummmmuuummmmmmmimumum umummumummmmmmmmuumwmm. mumummmmummmmmmmmmuimumum mummmmuummmmmmmmmumuuinUUi mmmmmummmmmummmumummumum mm ummumum ummumumum pimminmi mmmmuummmuuummummumumum mmmmmmmmmmmm.mmimmumi muummuuuumumuuummuu mJuumu mmmummmmummmmmmmmm umhjummummi mmmmmmumummummmmmm mumumumummum ummummmmmmmmmmumm mmummumummummi mmmmmumummmmummmr aummummumumum mumummum mmmmuininmminuinmmuui mummumumumummummummi immummum mum... umumummmummu ummummuin mumummummmm.u ummummummummmmmuumi ummmmmmmmmmmmmmmi mmumummumumi mumumumin mmmmmmuummmummmmu mmmmmmmmmmmumummummi Eummummmumummmmumh uuuuumuuumm uminmummin mmmmmummummuuummmu ummuumuummu mummummi mmmmummmmmmmmmmm aumummmummmmmuw mmumum mmmmmmmmummumummmmmummumumummum. umumumi mmmmmumummmmmmuiuinmmmmmu mmmumumumUummmmummLummmmmmmummmmmmmmmmminmi EmmmmmummmuumuummmmmumuumumummuumbuumummmmmE ummummmmmmmummmmmmmm--ummmummummmmmmuummmuumumumml mm. mum... mum... mmmmmm mu.uumm umummum mm mummum m mumum. mumum ummummum mu.. mum.. ummumummummum ummum_ma April 1979 49 ms up Slmulate6 rev triangular bloc ore 1/64 plywood p ium hub Note elm fouratrande 3 umg before blowln rally smaller low fell out sk over coni shoulder wing mode f6llowing v simplified 24-in Sm ounce lightei e performance d fli2hts 85yu isfaction th noothie led ect t meet ruseiage ano sun navt obLa An Florida 3 time crafi over ALt tatE RiDS eldS&ET WA ArL OT1 OF Re Wi aim-Smws- rnAR,tzS Au S-ixwez* Ptuco &LiR2S V.EReWTlIJ TZTAIA. ZI US$i AJ AS FiGR AS ir 4iUDo AAV Din- DSP w7W-rusa 8TA7TNA fIIjWTW0m4 I I1IIIAift ST T z3-UA ~ FAiSR-D LA*wv*wz OirwEjJ PTCH DNSJG D BY B LUEPJN CHAMBEMAItJ LITOM3A~I IFOUl*aS3YR3UR8CHE 54J DALE ETIDEET BVoN PARL ~ti OEoAEDR PA74JL ktS _Li _____________________________ LSIZE PLANS AVAILABLE SEE PAGE 120 ii II Li IJ III NO OCR TEXT NO OCR TEXT some new fliers permitted running launch assistant great ly helped experiencing difficulty Two problems arise launch torque reaction left second engine leans out quits com pletely hard launch solution first hard javelin type launch second problem eased soft launch Experimentation air pickup position tank height has usually helped us solve problem airplane nose dropped just prior launch engine can made load up some allowing such hard throw some accused making first pylon muscle power alone summary have operated largely within framework provided AMA 197 879 Provisional Rules l/2A Pylon have lots fun successful season have enticed number average fliers competitive event now have another vehicle getting aver age modelers interested competitive racing event feel should jealously guard against attempts substantially change its essential nature lesson past history available process present AMA events have evolved very simple good idea very specialized event small elite number participants per mitted specialists will take over refine event around capabilities interests average modeler will have machine shop extra dollars ac cess special parts fuels have skill experience construct competi tive racing machine larger communities will still enough fliers race smaller communities interest will dwindle until spark goes out Certainly name game racing let us keep original objectives mind keep event average modeler inexpensive easily constructed planes Chambermaid/Henn continued page 50 screw up like Wakefield fly 005 about 4 minutes some miracle about hour later retrieved model approxi mately mile downwind released flown over small forest several communities landed open area vicinity Needless say kept grounded until contest easily won Shell Greve Races placed third Scale During morning meet still damp air two flights clocked about 145 another 159 model wasnt flown again year until Spring 1978 FAC meet again won Shell Greve Races During July 1978 entered FAC Nats held Johnsville PA first day meet 15-minute thermal flight earned Chambermaid second place Scale next day nudged Bob Haden Jeanette PA has already won three 1ST PLACE Helicopter trophies Tn Valley Static Show Pittsburgh PA WRAMS RIG Jam boree White Plains NY Toledo Weak Signals 24th R/G Exposition Toledo Ohio super sharp highly modified Kaven Bell Jet Ranger Bob says As can see photo Formula-U really helped make highly detailed paint job turn out great base color Flight Aluminum Raven Black nose Metallic Red Fiery Orange Aviation Yellow trim Im happy tell Formula-U stands up tool Prior photo model flown 6 times plus friction wear transporting shows events over country happy proud Bob pleased Formula-Us perform ance hope will give try next model Heres few winning reasons might consider 18 popular Gloss Metallic Flat flight line colors matching brush spray Quick Drying One-Step System OneCoat Coverage Higher Gloss Finish Fuel-Proof Mar-Resistant Lightweight Super Tough AND matches Pactras Solarfilm Colors NEED FINISHING HELP! Send $100 complete step-by-step fully illustrated instruction book covering PACTRA FINISHING SYSTEMS 7060 HOLLYWOOD BLVD LOS ANGELES CA 90028 out first place few seconds Shell own Mr Smoothie contestants may fly two planes event caught some good air flight maxed son Billy talked using Smoothie instead better flying Cham bermaid Thompson Race stiff breeze blowing models launched dangerously close edge field turned out Billy right since Smoothie flew beyond field tree disqualified Chambermaids latest accomplishment winning Shell Greve Races during rainstorm October 1978 FAC bash competition encoun tered Connecticut meets about toughest found anywhere Winning kind nibber FF event Yankee territory never easy Construction model straight forward no unusual difficult aspects Choice wood paramount Use lightest contest balsa can find fuselage formers nose block wing ribs wing tips rudder stabilizer parts rest components constructed slightly firmer wood exception fuselage longerons hard balsa fuselage has flat sides makes easy assembly Once assembled sides can joined box-like fashion April1979 113 can winner too! WITH FORMULA-U POLYURETHANE FINISH FOR GAS POWERED MODELS FLASH STARTING UNEXCELLEG POWER Jo LONGER LIFE J6 LOWEST DRAIN GLOW PLUGS SWANSON ASSOCIATES EW JERSEY 0740 OW JERSEY 07440 using 1/16 sq crosspieces formers can glued crosspieces Most formers notched saves some sanding eliminates possibility misaligned stringers due improperly cut notches constructing wings jack up trailing edge near tips build about 3/16 washout important improves stability model Wing washes built prior covering permanent twisted after completion stabilizer built shown plan will far superior simple flatbottom structure will stronger warp resistant will generate lift allowing further aft center gravity greater latitude length weight rubber motor will permitted due rearward balance point rudder outline laminated three strips 1/16 X 1/32 balsa formed around cardboard form Soak strips water few minutes wipe off paper napkin Apply slightly thinned water base glue middle strip slap together work around form Fasten strips form small pieces masking tape dry resultant structure will have adequate strength much lighter laminated basswood built up conventional manner using sheetwood importance keeping tail comp onents light cannot overemphasized Mount wings fuselage prior covering before installing lowest top forward section stringers Simply poke protruding ends leading edge trailing edge spars through fuselage until bottom rib number butts up against top longeron Set incidence dihedral shown plan glue whole works together bottom junction trailing edges may have trimmed allow sufficient clearance rubber motor stringers previously omitted can now installed will have curved over wing spars shown photographs plans fair wing fuselage Some small sections 1/16 sheeting should added fuselage around points wing attaches add strength facilitate covering removable part nose block constructed disk 1/16 plywood glued 3 laminations a cross grained Make thrust bearing following manner Cut piece luminum tubing 9/16 long Push Peck Polymers PA-6 nylon bearing way end tube should tight press fit Drive another nylon bearing other end tube until butts up against its mate cut off flush end tubing Install completed assembly nose button least 20 down- right-thrust type bearing great Coupes Wakes Unlimiteds Use longer piece aluminum tubing drill out nylon bushings accommodate heavier wire fuselage wing assembly tail components can now covered color actual airplane creme Yellow closet color available Japanese Tissue used white tissue air brushed lightly thin mixture nitrate dope mud color Floquil railroad paint Use care warp lightly constructed rudder stabilizer covering such fragile structures generally preshrink tissue frame prior application additional shrinking results doping enough remove wrinkles pull out slack After covering rudder stabilizer can attached fuselage Dont fill area above stab until after trimming allow incidence adjustments cockpit canopy spinner vacu-formed single wheel 1-7/16 diameter /8 thick can formed turning piece balsa electric drill piece brass tubing can driven through balsa Hot Stuffed facili tate installation drill chuck wheel completed slice half fit bottom fuselage combination 10 diameter X 14 pitch prop 4 strands 3/16 X 30 FAI rubber worked well both Mr Smoothie Chambermaid dont have FAT stuff will just well Sig rubber usually takes few turns tires quickly Ive wound both types destruction clamped bench vise have found blow about 12501280 turns flying contests have never put 950 winds simply because was necessary win comfortable margin prefer use laminated props aluminum tubing hubs race planes because easy build will withstand much abuse blades made sheet 1/64 plywood piece 1/32 balsa laminated top form shown plan can used purpose form can also used jig set blades hub proper angle Details hub free-wheeling device 114 Model Aviation EXPERT BUILDERS WANTED Send us list accomplishments photos planes PIPER TRI-PACER Quarter Scale 89 wingspan 42 Sq Ft detailed plans 5 PP CURTIS HAWK P-O-E 60 wingspan 46 Sq Ft super detailed scale plans $1295 P P Send $1 00 fur list built-up Planes & 50% Ott Sale Hobby Capitol 01st 46 N Oak St Ventura Ca 93001 Ph -805-643-7616 CUSTOM TUNED ENGINES COMPETITION ACCESSORIES Cox 0491051 Specialists brochure send 15c stamp Kustom Kraftsmanship Brochure Box 2699 Laguna Hills CA 92653 714 830-5162 Chambermaid some trophies has won preshrink JdJJEIUGU IIGSUU 10 ayoio warping depends dope remove wrinkles pullout slack Cockpit prop spinner vacu-formed FAC Nats watched ship put up two flights 145 159 shown plans photographs carefully constructed type free wheeler rugged dependable extremely easy model trim likely minor adjustments will necessary make fly well Adjusting glide small model large free wheeling prop difficult following procedure recommended Prior installing rubber motor prop balance model point shown plan adding clay nose Next test glide model make appro priate adjustments stab rudder obtain floating glide hardly percep tible right turn important glide turn should too tight prevent spiralling under power accomplished remove clay install prop rubber motor wind slack out motor rebal ance same point lucky will balance did addition extra weight up weight model 145 gram motor 67 grams Theoretically grossly underpowered model comes out much lighter equip DT use category III Unlimited heavier may have use rubber get fly well longer motor 3 640 made 4 strands braided rubber might trick Braiding rubber helps reduce weight shift occurs exces sively long motors run out bunch up After braiding 40 inch motor will measure less 36 inches will take about 1500 turns keep 10/14 prop spinning good clip over minute never used such motor Chambermaid did use good results San Francisco although larger heavier model has same distance tween rear motor peg prop hook After motor prop installed crank about 200 turns give model heave should climb gently right doesntturn shim nose plug add right-thrust Minor stalling diving tendencies can also corrected thrust adjustments Try get good power pattern disturbing rudder elevator settings preserve glide model seems behaving increase number turns successive flight properly adjusted will amazed high model will climb well will glide big free wheeler up front would pleased hear anyone builds model address 53 Hall St Clifton NJ 07014 Jungmeister/McClure continued page 62 Power prototype Bu 131 production Jungmann provided Hirth HM 60R inverted in-line four-cylin der aircooled engine rated 80 hp Salient specifications Bu 131 given accom panying tables Extensive early acceptance con- hp sequent expanding production Bu 131 Jungmann motivated relocation Bucker facilities Rangsdorf Airport 1935 production improved Bu 131B initiated early 1936 Concurrently 1935/1936 historic Bucker Ru 133 Jungmeister designed developed prototype brought early production Briefly deferring discussion description Bu 133 Jungmeister salient specifications Bu 131 B Jungmann given accompanying table Changes compared Bu 13 IA essentially due employment new engine Hirth HM 504 inverted line four-cylinder aircooled rated 105 German production Ru 131 Jungmann having initiated later 1934 continued 1940 time other Bucker/Andersson designs prod uction eg Ru 181 Bestmann monoplane known several thousand Jungmann machines built Germany alone hundreds built Spain Japan Some 200 Jungmanns used Japanese Navy over thousand constructed Japanese Army Some Spanish examples Ru 131 completed until well 1960s usually concluded Bucker biplanes never actively armed aircraft However known 1942 April1979 115 Please send me......... copies new fourth edition Radio Control Buyers Guide Enclosed $600 copy ordered $525 Guide plus $75 postage & handling Total Enclosed ___________ anada City State ZIP Return Boynton & Assoc Clifton House Clifton VA 22024
Edition: Model Aviation - 1979/04
Page Numbers: 49, 50, 51, 52, 53, 113, 114, 115
One highly respected rubber scale models countrytwo firsts third FAC Scale Model Nats examplethis prewar racing plane offers naturally efficient layoutlong fuselage long nose shoulder wing sport/scale fan ensures long pretty flightsE Bill Henn curing racetarsi man aown outaii ion gets ott smootn launon Note parallel Inclination otarm snip flight othershipsappeartO Firecrackers Final round two survivors tension filledhow turns risk top other man Chambermaid Bummum .u..mu mmuuu mm .....mmuuu.muu.u.uu UUU U U EU mini Eu. .....uu.u U ENUEUEME UUUUUUUUU UU uummuummumuuumuummummuuumummumuuuuruuumuuumummmmuui Eummmm.mm..muuuuuu..u.uu.uuumuumuu mmu.uu.ummmm.uu...m.u. muumuummummmummm.uummuumuuumuumruu.u.uuu ummmuu.uu.muumuuuu.mul..mmu.u.I Im.uuu..uu...mu..uu.. mumuuummummruuuuuuuuuummmmuurmmmmmmumuI Em..U. ......uuum u.muuu... umuumumumuummr uuu. U..um.umum.uu umuEEuUuuUUI mm..mu.uu.m umuu..u.m mu....um..mr um.u.u.umI lmummukUUUUU IUUUUUEUEUUEU uu..uuuuuuI uuumummuumr .mu umu.u..u.ma I...uum.u. uuuummuum U.. 1mmu uumUUuu U.~1EU lummiu..m. Eu. mu U.I..u.uuml mu. Eu.um.um.ur uu U..u.m.. urn Em.mmmmm.mu 1Mm U.mm.uuu. mu mumm mmuummmmmmr mum mumam. uuuuumu mmml HUEiUUEC mm mm. JummumumuLmU qmuuuusEEm mum u..uumm. mum rmmmi ..mu.ummmmummUmmmmm. mmmmmummmmmmummmuumquamummi mummum mm..m mumumur muum umum mummum mummum mummummi mumummmmuuummmmmmmimumum umummumummmmmmmmuumwmm. mumummmmummmmmmmmmuimumum mummmmuummmmmmmmmumuuinUUi mmmmmummmmmummmumummumum mm ummumum ummumumum pimminmi mmmmuummmuuummummumumum mmmmmmmmmmmm.mmimmumi muummuuuumumuuummuu mJuumu mmmummmmummmmmmmmm umhjummummi mmmmmmumummummmmmm mumumumummum ummummmmmmmmmmumm mmummumummummi mmmmmumummmmummmr aummummumumum mumummum mmmmuininmminuinmmuui mummumumumummummummi immummum mum... umumummmummu ummummuin mumummummmm.u ummummummummmmmuumi ummmmmmmmmmmmmmmi mmumummumumi mumumumin mmmmmmuummmummmmu mmmmmmmmmmmumummummi Eummummmumummmmumh uuuuumuuumm uminmummin mmmmmummummuuummmu ummuumuummu mummummi mmmmummmmmmmmmmm aumummmummmmmuw mmumum mmmmmmmmummumummmmmummumumummum. umumumi mmmmmumummmmmmuiuinmmmmmu mmmumumumUummmmummLummmmmmmummmmmmmmmmminmi EmmmmmummmuumuummmmmumuumumummuumbuumummmmmE ummummmmmmmummmmmmmm--ummmummummmmmmuummmuumumumml mm. mum... mum... mmmmmm mu.uumm umummum mm mummum m mumum. mumum ummummum mu.. mum.. ummumummummum ummum_ma April 1979 49 ms up Slmulate6 rev triangular bloc ore 1/64 plywood p ium hub Note elm fouratrande 3 umg before blowln rally smaller low fell out sk over coni shoulder wing mode f6llowing v simplified 24-in Sm ounce lightei e performance d fli2hts 85yu isfaction th noothie led ect t meet ruseiage ano sun navt obLa An Florida 3 time crafi over ALt tatE RiDS eldS&ET WA ArL OT1 OF Re Wi aim-Smws- rnAR,tzS Au S-ixwez* Ptuco &LiR2S V.EReWTlIJ TZTAIA. ZI US$i AJ AS FiGR AS ir 4iUDo AAV Din- DSP w7W-rusa 8TA7TNA fIIjWTW0m4 I I1IIIAift ST T z3-UA ~ FAiSR-D LA*wv*wz OirwEjJ PTCH DNSJG D BY B LUEPJN CHAMBEMAItJ LITOM3A~I IFOUl*aS3YR3UR8CHE 54J DALE ETIDEET BVoN PARL ~ti OEoAEDR PA74JL ktS _Li _____________________________ LSIZE PLANS AVAILABLE SEE PAGE 120 ii II Li IJ III NO OCR TEXT NO OCR TEXT some new fliers permitted running launch assistant great ly helped experiencing difficulty Two problems arise launch torque reaction left second engine leans out quits com pletely hard launch solution first hard javelin type launch second problem eased soft launch Experimentation air pickup position tank height has usually helped us solve problem airplane nose dropped just prior launch engine can made load up some allowing such hard throw some accused making first pylon muscle power alone summary have operated largely within framework provided AMA 197 879 Provisional Rules l/2A Pylon have lots fun successful season have enticed number average fliers competitive event now have another vehicle getting aver age modelers interested competitive racing event feel should jealously guard against attempts substantially change its essential nature lesson past history available process present AMA events have evolved very simple good idea very specialized event small elite number participants per mitted specialists will take over refine event around capabilities interests average modeler will have machine shop extra dollars ac cess special parts fuels have skill experience construct competi tive racing machine larger communities will still enough fliers race smaller communities interest will dwindle until spark goes out Certainly name game racing let us keep original objectives mind keep event average modeler inexpensive easily constructed planes Chambermaid/Henn continued page 50 screw up like Wakefield fly 005 about 4 minutes some miracle about hour later retrieved model approxi mately mile downwind released flown over small forest several communities landed open area vicinity Needless say kept grounded until contest easily won Shell Greve Races placed third Scale During morning meet still damp air two flights clocked about 145 another 159 model wasnt flown again year until Spring 1978 FAC meet again won Shell Greve Races During July 1978 entered FAC Nats held Johnsville PA first day meet 15-minute thermal flight earned Chambermaid second place Scale next day nudged Bob Haden Jeanette PA has already won three 1ST PLACE Helicopter trophies Tn Valley Static Show Pittsburgh PA WRAMS RIG Jam boree White Plains NY Toledo Weak Signals 24th R/G Exposition Toledo Ohio super sharp highly modified Kaven Bell Jet Ranger Bob says As can see photo Formula-U really helped make highly detailed paint job turn out great base color Flight Aluminum Raven Black nose Metallic Red Fiery Orange Aviation Yellow trim Im happy tell Formula-U stands up tool Prior photo model flown 6 times plus friction wear transporting shows events over country happy proud Bob pleased Formula-Us perform ance hope will give try next model Heres few winning reasons might consider 18 popular Gloss Metallic Flat flight line colors matching brush spray Quick Drying One-Step System OneCoat Coverage Higher Gloss Finish Fuel-Proof Mar-Resistant Lightweight Super Tough AND matches Pactras Solarfilm Colors NEED FINISHING HELP! Send $100 complete step-by-step fully illustrated instruction book covering PACTRA FINISHING SYSTEMS 7060 HOLLYWOOD BLVD LOS ANGELES CA 90028 out first place few seconds Shell own Mr Smoothie contestants may fly two planes event caught some good air flight maxed son Billy talked using Smoothie instead better flying Cham bermaid Thompson Race stiff breeze blowing models launched dangerously close edge field turned out Billy right since Smoothie flew beyond field tree disqualified Chambermaids latest accomplishment winning Shell Greve Races during rainstorm October 1978 FAC bash competition encoun tered Connecticut meets about toughest found anywhere Winning kind nibber FF event Yankee territory never easy Construction model straight forward no unusual difficult aspects Choice wood paramount Use lightest contest balsa can find fuselage formers nose block wing ribs wing tips rudder stabilizer parts rest components constructed slightly firmer wood exception fuselage longerons hard balsa fuselage has flat sides makes easy assembly Once assembled sides can joined box-like fashion April1979 113 can winner too! WITH FORMULA-U POLYURETHANE FINISH FOR GAS POWERED MODELS FLASH STARTING UNEXCELLEG POWER Jo LONGER LIFE J6 LOWEST DRAIN GLOW PLUGS SWANSON ASSOCIATES EW JERSEY 0740 OW JERSEY 07440 using 1/16 sq crosspieces formers can glued crosspieces Most formers notched saves some sanding eliminates possibility misaligned stringers due improperly cut notches constructing wings jack up trailing edge near tips build about 3/16 washout important improves stability model Wing washes built prior covering permanent twisted after completion stabilizer built shown plan will far superior simple flatbottom structure will stronger warp resistant will generate lift allowing further aft center gravity greater latitude length weight rubber motor will permitted due rearward balance point rudder outline laminated three strips 1/16 X 1/32 balsa formed around cardboard form Soak strips water few minutes wipe off paper napkin Apply slightly thinned water base glue middle strip slap together work around form Fasten strips form small pieces masking tape dry resultant structure will have adequate strength much lighter laminated basswood built up conventional manner using sheetwood importance keeping tail comp onents light cannot overemphasized Mount wings fuselage prior covering before installing lowest top forward section stringers Simply poke protruding ends leading edge trailing edge spars through fuselage until bottom rib number butts up against top longeron Set incidence dihedral shown plan glue whole works together bottom junction trailing edges may have trimmed allow sufficient clearance rubber motor stringers previously omitted can now installed will have curved over wing spars shown photographs plans fair wing fuselage Some small sections 1/16 sheeting should added fuselage around points wing attaches add strength facilitate covering removable part nose block constructed disk 1/16 plywood glued 3 laminations a cross grained Make thrust bearing following manner Cut piece luminum tubing 9/16 long Push Peck Polymers PA-6 nylon bearing way end tube should tight press fit Drive another nylon bearing other end tube until butts up against its mate cut off flush end tubing Install completed assembly nose button least 20 down- right-thrust type bearing great Coupes Wakes Unlimiteds Use longer piece aluminum tubing drill out nylon bushings accommodate heavier wire fuselage wing assembly tail components can now covered color actual airplane creme Yellow closet color available Japanese Tissue used white tissue air brushed lightly thin mixture nitrate dope mud color Floquil railroad paint Use care warp lightly constructed rudder stabilizer covering such fragile structures generally preshrink tissue frame prior application additional shrinking results doping enough remove wrinkles pull out slack After covering rudder stabilizer can attached fuselage Dont fill area above stab until after trimming allow incidence adjustments cockpit canopy spinner vacu-formed single wheel 1-7/16 diameter /8 thick can formed turning piece balsa electric drill piece brass tubing can driven through balsa Hot Stuffed facili tate installation drill chuck wheel completed slice half fit bottom fuselage combination 10 diameter X 14 pitch prop 4 strands 3/16 X 30 FAI rubber worked well both Mr Smoothie Chambermaid dont have FAT stuff will just well Sig rubber usually takes few turns tires quickly Ive wound both types destruction clamped bench vise have found blow about 12501280 turns flying contests have never put 950 winds simply because was necessary win comfortable margin prefer use laminated props aluminum tubing hubs race planes because easy build will withstand much abuse blades made sheet 1/64 plywood piece 1/32 balsa laminated top form shown plan can used purpose form can also used jig set blades hub proper angle Details hub free-wheeling device 114 Model Aviation EXPERT BUILDERS WANTED Send us list accomplishments photos planes PIPER TRI-PACER Quarter Scale 89 wingspan 42 Sq Ft detailed plans 5 PP CURTIS HAWK P-O-E 60 wingspan 46 Sq Ft super detailed scale plans $1295 P P Send $1 00 fur list built-up Planes & 50% Ott Sale Hobby Capitol 01st 46 N Oak St Ventura Ca 93001 Ph -805-643-7616 CUSTOM TUNED ENGINES COMPETITION ACCESSORIES Cox 0491051 Specialists brochure send 15c stamp Kustom Kraftsmanship Brochure Box 2699 Laguna Hills CA 92653 714 830-5162 Chambermaid some trophies has won preshrink JdJJEIUGU IIGSUU 10 ayoio warping depends dope remove wrinkles pullout slack Cockpit prop spinner vacu-formed FAC Nats watched ship put up two flights 145 159 shown plans photographs carefully constructed type free wheeler rugged dependable extremely easy model trim likely minor adjustments will necessary make fly well Adjusting glide small model large free wheeling prop difficult following procedure recommended Prior installing rubber motor prop balance model point shown plan adding clay nose Next test glide model make appro priate adjustments stab rudder obtain floating glide hardly percep tible right turn important glide turn should too tight prevent spiralling under power accomplished remove clay install prop rubber motor wind slack out motor rebal ance same point lucky will balance did addition extra weight up weight model 145 gram motor 67 grams Theoretically grossly underpowered model comes out much lighter equip DT use category III Unlimited heavier may have use rubber get fly well longer motor 3 640 made 4 strands braided rubber might trick Braiding rubber helps reduce weight shift occurs exces sively long motors run out bunch up After braiding 40 inch motor will measure less 36 inches will take about 1500 turns keep 10/14 prop spinning good clip over minute never used such motor Chambermaid did use good results San Francisco although larger heavier model has same distance tween rear motor peg prop hook After motor prop installed crank about 200 turns give model heave should climb gently right doesntturn shim nose plug add right-thrust Minor stalling diving tendencies can also corrected thrust adjustments Try get good power pattern disturbing rudder elevator settings preserve glide model seems behaving increase number turns successive flight properly adjusted will amazed high model will climb well will glide big free wheeler up front would pleased hear anyone builds model address 53 Hall St Clifton NJ 07014 Jungmeister/McClure continued page 62 Power prototype Bu 131 production Jungmann provided Hirth HM 60R inverted in-line four-cylin der aircooled engine rated 80 hp Salient specifications Bu 131 given accom panying tables Extensive early acceptance con- hp sequent expanding production Bu 131 Jungmann motivated relocation Bucker facilities Rangsdorf Airport 1935 production improved Bu 131B initiated early 1936 Concurrently 1935/1936 historic Bucker Ru 133 Jungmeister designed developed prototype brought early production Briefly deferring discussion description Bu 133 Jungmeister salient specifications Bu 131 B Jungmann given accompanying table Changes compared Bu 13 IA essentially due employment new engine Hirth HM 504 inverted line four-cylinder aircooled rated 105 German production Ru 131 Jungmann having initiated later 1934 continued 1940 time other Bucker/Andersson designs prod uction eg Ru 181 Bestmann monoplane known several thousand Jungmann machines built Germany alone hundreds built Spain Japan Some 200 Jungmanns used Japanese Navy over thousand constructed Japanese Army Some Spanish examples Ru 131 completed until well 1960s usually concluded Bucker biplanes never actively armed aircraft However known 1942 April1979 115 Please send me......... copies new fourth edition Radio Control Buyers Guide Enclosed $600 copy ordered $525 Guide plus $75 postage & handling Total Enclosed ___________ anada City State ZIP Return Boynton & Assoc Clifton House Clifton VA 22024
Edition: Model Aviation - 1979/04
Page Numbers: 49, 50, 51, 52, 53, 113, 114, 115
One highly respected rubber scale models countrytwo firsts third FAC Scale Model Nats examplethis prewar racing plane offers naturally efficient layoutlong fuselage long nose shoulder wing sport/scale fan ensures long pretty flightsE Bill Henn curing racetarsi man aown outaii ion gets ott smootn launon Note parallel Inclination otarm snip flight othershipsappeartO Firecrackers Final round two survivors tension filledhow turns risk top other man Chambermaid Bummum .u..mu mmuuu mm .....mmuuu.muu.u.uu UUU U U EU mini Eu. .....uu.u U ENUEUEME UUUUUUUUU UU uummuummumuuumuummummuuumummumuuuuruuumuuumummmmuui Eummmm.mm..muuuuuu..u.uu.uuumuumuu mmu.uu.ummmm.uu...m.u. muumuummummmummm.uummuumuuumuumruu.u.uuu ummmuu.uu.muumuuuu.mul..mmu.u.I Im.uuu..uu...mu..uu.. mumuuummummruuuuuuuuuummmmuurmmmmmmumuI Em..U. ......uuum u.muuu... umuumumumuummr uuu. U..um.umum.uu umuEEuUuuUUI mm..mu.uu.m umuu..u.m mu....um..mr um.u.u.umI lmummukUUUUU IUUUUUEUEUUEU uu..uuuuuuI uuumummuumr .mu umu.u..u.ma I...uum.u. uuuummuum U.. 1mmu uumUUuu U.~1EU lummiu..m. Eu. mu U.I..u.uuml mu. Eu.um.um.ur uu U..u.m.. urn Em.mmmmm.mu 1Mm U.mm.uuu. mu mumm mmuummmmmmr mum mumam. uuuuumu mmml HUEiUUEC mm mm. JummumumuLmU qmuuuusEEm mum u..uumm. mum rmmmi ..mu.ummmmummUmmmmm. mmmmmummmmmmummmuumquamummi mummum mm..m mumumur muum umum mummum mummum mummummi mumummmmuuummmmmmmimumum umummumummmmmmmmuumwmm. mumummmmummmmmmmmmuimumum mummmmuummmmmmmmmumuuinUUi mmmmmummmmmummmumummumum mm ummumum ummumumum pimminmi mmmmuummmuuummummumumum mmmmmmmmmmmm.mmimmumi muummuuuumumuuummuu mJuumu mmmummmmummmmmmmmm umhjummummi mmmmmmumummummmmmm mumumumummum ummummmmmmmmmmumm mmummumummummi mmmmmumummmmummmr aummummumumum mumummum mmmmuininmminuinmmuui mummumumumummummummi immummum mum... umumummmummu ummummuin mumummummmm.u ummummummummmmmuumi ummmmmmmmmmmmmmmi mmumummumumi mumumumin mmmmmmuummmummmmu mmmmmmmmmmmumummummi Eummummmumummmmumh uuuuumuuumm uminmummin mmmmmummummuuummmu ummuumuummu mummummi mmmmummmmmmmmmmm aumummmummmmmuw mmumum mmmmmmmmummumummmmmummumumummum. umumumi mmmmmumummmmmmuiuinmmmmmu mmmumumumUummmmummLummmmmmmummmmmmmmmmminmi EmmmmmummmuumuummmmmumuumumummuumbuumummmmmE ummummmmmmmummmmmmmm--ummmummummmmmmuummmuumumumml mm. mum... mum... mmmmmm mu.uumm umummum mm mummum m mumum. mumum ummummum mu.. mum.. ummumummummum ummum_ma April 1979 49 ms up Slmulate6 rev triangular bloc ore 1/64 plywood p ium hub Note elm fouratrande 3 umg before blowln rally smaller low fell out sk over coni shoulder wing mode f6llowing v simplified 24-in Sm ounce lightei e performance d fli2hts 85yu isfaction th noothie led ect t meet ruseiage ano sun navt obLa An Florida 3 time crafi over ALt tatE RiDS eldS&ET WA ArL OT1 OF Re Wi aim-Smws- rnAR,tzS Au S-ixwez* Ptuco &LiR2S V.EReWTlIJ TZTAIA. ZI US$i AJ AS FiGR AS ir 4iUDo AAV Din- DSP w7W-rusa 8TA7TNA fIIjWTW0m4 I I1IIIAift ST T z3-UA ~ FAiSR-D LA*wv*wz OirwEjJ PTCH DNSJG D BY B LUEPJN CHAMBEMAItJ LITOM3A~I IFOUl*aS3YR3UR8CHE 54J DALE ETIDEET BVoN PARL ~ti OEoAEDR PA74JL ktS _Li _____________________________ LSIZE PLANS AVAILABLE SEE PAGE 120 ii II Li IJ III NO OCR TEXT NO OCR TEXT some new fliers permitted running launch assistant great ly helped experiencing difficulty Two problems arise launch torque reaction left second engine leans out quits com pletely hard launch solution first hard javelin type launch second problem eased soft launch Experimentation air pickup position tank height has usually helped us solve problem airplane nose dropped just prior launch engine can made load up some allowing such hard throw some accused making first pylon muscle power alone summary have operated largely within framework provided AMA 197 879 Provisional Rules l/2A Pylon have lots fun successful season have enticed number average fliers competitive event now have another vehicle getting aver age modelers interested competitive racing event feel should jealously guard against attempts substantially change its essential nature lesson past history available process present AMA events have evolved very simple good idea very specialized event small elite number participants per mitted specialists will take over refine event around capabilities interests average modeler will have machine shop extra dollars ac cess special parts fuels have skill experience construct competi tive racing machine larger communities will still enough fliers race smaller communities interest will dwindle until spark goes out Certainly name game racing let us keep original objectives mind keep event average modeler inexpensive easily constructed planes Chambermaid/Henn continued page 50 screw up like Wakefield fly 005 about 4 minutes some miracle about hour later retrieved model approxi mately mile downwind released flown over small forest several communities landed open area vicinity Needless say kept grounded until contest easily won Shell Greve Races placed third Scale During morning meet still damp air two flights clocked about 145 another 159 model wasnt flown again year until Spring 1978 FAC meet again won Shell Greve Races During July 1978 entered FAC Nats held Johnsville PA first day meet 15-minute thermal flight earned Chambermaid second place Scale next day nudged Bob Haden Jeanette PA has already won three 1ST PLACE Helicopter trophies Tn Valley Static Show Pittsburgh PA WRAMS RIG Jam boree White Plains NY Toledo Weak Signals 24th R/G Exposition Toledo Ohio super sharp highly modified Kaven Bell Jet Ranger Bob says As can see photo Formula-U really helped make highly detailed paint job turn out great base color Flight Aluminum Raven Black nose Metallic Red Fiery Orange Aviation Yellow trim Im happy tell Formula-U stands up tool Prior photo model flown 6 times plus friction wear transporting shows events over country happy proud Bob pleased Formula-Us perform ance hope will give try next model Heres few winning reasons might consider 18 popular Gloss Metallic Flat flight line colors matching brush spray Quick Drying One-Step System OneCoat Coverage Higher Gloss Finish Fuel-Proof Mar-Resistant Lightweight Super Tough AND matches Pactras Solarfilm Colors NEED FINISHING HELP! Send $100 complete step-by-step fully illustrated instruction book covering PACTRA FINISHING SYSTEMS 7060 HOLLYWOOD BLVD LOS ANGELES CA 90028 out first place few seconds Shell own Mr Smoothie contestants may fly two planes event caught some good air flight maxed son Billy talked using Smoothie instead better flying Cham bermaid Thompson Race stiff breeze blowing models launched dangerously close edge field turned out Billy right since Smoothie flew beyond field tree disqualified Chambermaids latest accomplishment winning Shell Greve Races during rainstorm October 1978 FAC bash competition encoun tered Connecticut meets about toughest found anywhere Winning kind nibber FF event Yankee territory never easy Construction model straight forward no unusual difficult aspects Choice wood paramount Use lightest contest balsa can find fuselage formers nose block wing ribs wing tips rudder stabilizer parts rest components constructed slightly firmer wood exception fuselage longerons hard balsa fuselage has flat sides makes easy assembly Once assembled sides can joined box-like fashion April1979 113 can winner too! WITH FORMULA-U POLYURETHANE FINISH FOR GAS POWERED MODELS FLASH STARTING UNEXCELLEG POWER Jo LONGER LIFE J6 LOWEST DRAIN GLOW PLUGS SWANSON ASSOCIATES EW JERSEY 0740 OW JERSEY 07440 using 1/16 sq crosspieces formers can glued crosspieces Most formers notched saves some sanding eliminates possibility misaligned stringers due improperly cut notches constructing wings jack up trailing edge near tips build about 3/16 washout important improves stability model Wing washes built prior covering permanent twisted after completion stabilizer built shown plan will far superior simple flatbottom structure will stronger warp resistant will generate lift allowing further aft center gravity greater latitude length weight rubber motor will permitted due rearward balance point rudder outline laminated three strips 1/16 X 1/32 balsa formed around cardboard form Soak strips water few minutes wipe off paper napkin Apply slightly thinned water base glue middle strip slap together work around form Fasten strips form small pieces masking tape dry resultant structure will have adequate strength much lighter laminated basswood built up conventional manner using sheetwood importance keeping tail comp onents light cannot overemphasized Mount wings fuselage prior covering before installing lowest top forward section stringers Simply poke protruding ends leading edge trailing edge spars through fuselage until bottom rib number butts up against top longeron Set incidence dihedral shown plan glue whole works together bottom junction trailing edges may have trimmed allow sufficient clearance rubber motor stringers previously omitted can now installed will have curved over wing spars shown photographs plans fair wing fuselage Some small sections 1/16 sheeting should added fuselage around points wing attaches add strength facilitate covering removable part nose block constructed disk 1/16 plywood glued 3 laminations a cross grained Make thrust bearing following manner Cut piece luminum tubing 9/16 long Push Peck Polymers PA-6 nylon bearing way end tube should tight press fit Drive another nylon bearing other end tube until butts up against its mate cut off flush end tubing Install completed assembly nose button least 20 down- right-thrust type bearing great Coupes Wakes Unlimiteds Use longer piece aluminum tubing drill out nylon bushings accommodate heavier wire fuselage wing assembly tail components can now covered color actual airplane creme Yellow closet color available Japanese Tissue used white tissue air brushed lightly thin mixture nitrate dope mud color Floquil railroad paint Use care warp lightly constructed rudder stabilizer covering such fragile structures generally preshrink tissue frame prior application additional shrinking results doping enough remove wrinkles pull out slack After covering rudder stabilizer can attached fuselage Dont fill area above stab until after trimming allow incidence adjustments cockpit canopy spinner vacu-formed single wheel 1-7/16 diameter /8 thick can formed turning piece balsa electric drill piece brass tubing can driven through balsa Hot Stuffed facili tate installation drill chuck wheel completed slice half fit bottom fuselage combination 10 diameter X 14 pitch prop 4 strands 3/16 X 30 FAI rubber worked well both Mr Smoothie Chambermaid dont have FAT stuff will just well Sig rubber usually takes few turns tires quickly Ive wound both types destruction clamped bench vise have found blow about 12501280 turns flying contests have never put 950 winds simply because was necessary win comfortable margin prefer use laminated props aluminum tubing hubs race planes because easy build will withstand much abuse blades made sheet 1/64 plywood piece 1/32 balsa laminated top form shown plan can used purpose form can also used jig set blades hub proper angle Details hub free-wheeling device 114 Model Aviation EXPERT BUILDERS WANTED Send us list accomplishments photos planes PIPER TRI-PACER Quarter Scale 89 wingspan 42 Sq Ft detailed plans 5 PP CURTIS HAWK P-O-E 60 wingspan 46 Sq Ft super detailed scale plans $1295 P P Send $1 00 fur list built-up Planes & 50% Ott Sale Hobby Capitol 01st 46 N Oak St Ventura Ca 93001 Ph -805-643-7616 CUSTOM TUNED ENGINES COMPETITION ACCESSORIES Cox 0491051 Specialists brochure send 15c stamp Kustom Kraftsmanship Brochure Box 2699 Laguna Hills CA 92653 714 830-5162 Chambermaid some trophies has won preshrink JdJJEIUGU IIGSUU 10 ayoio warping depends dope remove wrinkles pullout slack Cockpit prop spinner vacu-formed FAC Nats watched ship put up two flights 145 159 shown plans photographs carefully constructed type free wheeler rugged dependable extremely easy model trim likely minor adjustments will necessary make fly well Adjusting glide small model large free wheeling prop difficult following procedure recommended Prior installing rubber motor prop balance model point shown plan adding clay nose Next test glide model make appro priate adjustments stab rudder obtain floating glide hardly percep tible right turn important glide turn should too tight prevent spiralling under power accomplished remove clay install prop rubber motor wind slack out motor rebal ance same point lucky will balance did addition extra weight up weight model 145 gram motor 67 grams Theoretically grossly underpowered model comes out much lighter equip DT use category III Unlimited heavier may have use rubber get fly well longer motor 3 640 made 4 strands braided rubber might trick Braiding rubber helps reduce weight shift occurs exces sively long motors run out bunch up After braiding 40 inch motor will measure less 36 inches will take about 1500 turns keep 10/14 prop spinning good clip over minute never used such motor Chambermaid did use good results San Francisco although larger heavier model has same distance tween rear motor peg prop hook After motor prop installed crank about 200 turns give model heave should climb gently right doesntturn shim nose plug add right-thrust Minor stalling diving tendencies can also corrected thrust adjustments Try get good power pattern disturbing rudder elevator settings preserve glide model seems behaving increase number turns successive flight properly adjusted will amazed high model will climb well will glide big free wheeler up front would pleased hear anyone builds model address 53 Hall St Clifton NJ 07014 Jungmeister/McClure continued page 62 Power prototype Bu 131 production Jungmann provided Hirth HM 60R inverted in-line four-cylin der aircooled engine rated 80 hp Salient specifications Bu 131 given accom panying tables Extensive early acceptance con- hp sequent expanding production Bu 131 Jungmann motivated relocation Bucker facilities Rangsdorf Airport 1935 production improved Bu 131B initiated early 1936 Concurrently 1935/1936 historic Bucker Ru 133 Jungmeister designed developed prototype brought early production Briefly deferring discussion description Bu 133 Jungmeister salient specifications Bu 131 B Jungmann given accompanying table Changes compared Bu 13 IA essentially due employment new engine Hirth HM 504 inverted line four-cylinder aircooled rated 105 German production Ru 131 Jungmann having initiated later 1934 continued 1940 time other Bucker/Andersson designs prod uction eg Ru 181 Bestmann monoplane known several thousand Jungmann machines built Germany alone hundreds built Spain Japan Some 200 Jungmanns used Japanese Navy over thousand constructed Japanese Army Some Spanish examples Ru 131 completed until well 1960s usually concluded Bucker biplanes never actively armed aircraft However known 1942 April1979 115 Please send me......... copies new fourth edition Radio Control Buyers Guide Enclosed $600 copy ordered $525 Guide plus $75 postage & handling Total Enclosed ___________ anada City State ZIP Return Boynton & Assoc Clifton House Clifton VA 22024