WHEN started design Peliban really hadnt made firm decision about some its details wanted smallish biplane should have rudder elevator just rudder control What sort engine should use Would use simple single leg undercarriage something built up Problems problems Eventually structure less finalized still no decisions number channels etc. lly inspira tion struck Rather wony about decisions Id make two models single-channel two channels Id use low-powered engine single-leg gear single-channel model hotter engine complex undercarriage two-channel single-channel model fitted Ace radio Baby Twin actuator cc English diesel power unit other used Cox 049 QZ Cannon radio Both models fly expected single-channel version being sedate just right lazy afternoon sport flying excitement Cox-powered version should tried good pro peller some hot fuel model will keep thumbs very busy plans show various pieces building both one- two-channel ver sions both undercarriage systems also 0@ An easy-to-build pleasant flier either two channels 1 /2A power Jack Headley Happy Bipe wing hatch removed gizzards exposed Forward isthe brick CG aft mini servo Right Typical wire pushrod end nylon rudder horn adjustable nylon clevis sporty little bipe great fun confined apaces stuntable getting uptight mounting scheme radial beammounted engines wings basic fuselage common two-channel model rudder made thicker stock better compat ibility hinges whereas single-channel simple t rudder adequate sewn fin similar manner tail planes two versions different Naturally its better use higherpowered motor forthe two-channel version either Cox QZR/C Medallion tank mount suggested lower powered single-channel model either mild Cox diesel about icc capacity will OK Fuselage basically sheet box provisions either radial beammounted engine has opening topside underneath top wing instal lation access equipment Con struction begins selecting two similar pieces t fuselage sides Its important get sheets similar weight bending stifThess otherwise rather lopsided fuselage might emerge Place plans over ts pin prick out outline side onto sheeting Join dots soft pencil cut outline Sand smooth transfer outline onto other piece sheet cut out fuselage side Tape two sides together make final pass sand paper two identical sides obtained Next step make pieces cabane structure items P1 2 3 hardwood cut size After covering plans wax paper right-hand fuselage side pinned down onto plan item P1 Epoxy items P2 3 onto both fuselage side P1 Next make cement place IiA ALL RIRSOPA3 SG WARD NO LOGSEWDE HII ____________ ___________ ___________ ___ TRAL 0 EDGE TR _______________I- FUSELAGE BOT TOW %PLTIFUSELAGE SIDESA-IOPCYCWAMREL jSWWU SEW_RUODER/ I65W 0 SW _/_ ___________OUTLINETYR CADOWEL ____________ ER FOUF UEPOXY/\\RUOGfA/I__ LONGERONSI 3 _____ TWO CHANNELT ---SOLDER ______3XOSR It----- I-- _______ ROT TOM LONGEROWS 6SO O RE XY TANA TORQUE ADO ASIlNSTTO RUDDER FRAMES ERDOY DING EDGE ____ _____ALTERNATE3j10 PLY1 ROE PS W3 0IOIROOODR~ LII DRHALL RRS H AI UNLESS H SPORT RIPLANE FOR SWGF P E LI B N DR TWO CHANNEL OSAND DRAWN May1979 33 V 0 N w 0 w w w -J -J Cd z -J 0 w N CR -I -J UTRAILING EDDE DR sheet doublers forward fuselage area also 3/16 triangular strip serves additional mounting area tailpiane gluing has dried remove side plans make left fuselage side using back side plans frames come next F2 F5 can made illustrated plan Fl however will depend engine intend use radial-mounted Cox Fl sketched plans made other motor make suitable modifications before gluing F place Installation frames begins F 1 F2 secure bend rear fuselage sides together glue F3 4 5 place intend use single-leg under carriage should made attached F 1 before frame finally glued place Next add X ling edge stock behind Fl reinforcement balsa blocks around engine youre intending use beam-mounted engine hardwood bearers plywood plate now installed balsa blocks around nose arranged include some way drain used fuel away fuselage balsa fairing blocks depend motor used object fair nose some pleasing shape However prac tical reasons some cutouts example needle valve may unavoidable remaining items attached stage two upper 3/16 sq longerons Wings The upper wing has larger span chord lower wing Straight dihedral used both wings top wing having larger dihedral bottom lower wing permanently attached fuselage upper attached cabane structure rubber bands upper wing removed access radio compartment Both wings constructed similar manner Top Wing Being 30 span top wing first built piece 36 lengths balsa cut middle rejoined using plywood doublers center section Pin down onto plan leading trailing edge pieces plus 3/16 sq lower main spar Cutout 18 upper wing ribs hard 1/16 sheet notch main spars glue central four place After upper main spar cemented onto ribs has dried cut wing center section two halves pin halves flat onto building board Trim center ends other wing half correct angle making sure good butt joint obtained wings Continued page 106 34 Model Aviation Ace system rudder-only job Forward lathe receiver behind ltthe pulse magnetic actuator actuator rudder slave transmitter pulse average out stick position Note Mills diesel Right Wire control yoke simple figure-B stitch hinging have choice Vee landing gear simple single strut installationalso shown plan Wing saddle struts made hardwoodepoxiedand uprights go down fuselage ubiquitous Cox spring starter quiet QRC version ideal forschoolyard flying neighbors might complain minutes Exhaust hardly audible SAM Champs Lyn Haslam says Saltair Modelport outside Salt Lake City Utah much improved site after last years New Jersey Pine Barrens Dates July 24 25 26 week before Lincoln Nats dates coincide Mormon Pioneer Days festivities Salt Lake Clarence Haught will have details next months Model Aviation Dee B Mathews 506 S Walnu4 Greensburg KS 67054 RC Pylon/Hager continued page 31 some tips 500 racing might helpful As racings events get out what put want win must put out extra effort Build plane light racing air- plane must well built dont skimp Spend little time checking wood kit light weight Replace seems heavy side important use proper amount glue Glue running down inside plane adds extra weight weight plane very important dont use too much glue try make well-built plane little extra effort time building will benefit end crooked plane will disad vantage start use iron-on covering make sure edges down use super MonoKote seal control surfaces hinge line sealed will create less drag control surfaces will much effective Next time contest take look some faster guys planes will find well built planes takes lot practice fly good course neat thing about 500 going use plane sport plane time fly can practice session future issues will discuss other types racing Next month will go safety something need get involved no matter what fly column reader Any comments things would like read about please let know can send mail directly Bill Hager 5200 Rye Drive Dayton OH 45424 Peliban/Headley continued page 34 aligned correct dihedral angle angle found putting wood block 2 high under tip free wing panel Epoxy spars together center section satisfactory joint has made make epoxy place 1/16 ply wingjoiners WI W2 Addthe remaining center section ribs will need little trimming before can glued place wing tips made t balsa last items installed upper wing After have attached wing sanded its final contour prepared covering Lower Wing constructed single piece exactly same way top wing Pin down onto building board leading trailing edge pieces also lower main spar hard 1/16 sheet cut out ten lower wing ribs glue place Cement upper 3/16 sq top main spar ribs before cut wing two pieces center line rejoin using 1/16 ply wing joiners W3 4 Add t wing tips sand wing airfoil shape shown plans Construction lower wing will resume after wing has glued onto fuselage Tall plane begins assembly outline composed strips 3/16 X balsa Pin down onto plan make tail plane tips scraps 3/16 sheet glue place four required ribs 3/16 sq Center section tail plane reinforced two pieces 3/16 sheet gap between provided fin attached during assembly single-channel version tail plane completed adding two pieces softish 3/16 sheet represent elevators Glueinplacethenthindowntoabout 1/16 trailing edge elevator two-channel version cut slightly harder 3/16 sheet good way making two-piece elevators first make single full-length strip initially notched center 3/16 dowel joiner Epoxy dowel place after can cut out V-shaped notch center elevator chamfered about 1/16 thick trailing edge Sand its leading edge full radius have sanding block hand full radius put tail plane outline Fin Rudder fin constructed similar way tail plane An outline 3/16 sheet made single 3/16 sq rib added Since fin extends tail plane leave enough material make key piece Sand full radius outside edges except bottom strip rudder thickness depends system youre going use single channel rudder cut piece sheet rounded along edges two-channel use 3/16 sheet chamfer similar manner elevator Assembly first items concern fuselage lower wing Cut slots fuselage wing leading edge main spar trailing edge rests bottom body check two items correctly aligned before ce menting wing place Attach tail plane making sure alignment OK both top front views before gluing Cement fin slot provided use two-legged undercarriage now installed wiire legs attached two ood plates J bolts plates being notched fuselage sides Check alignment before finally tight ening bolts epoxy nuts place Close bottom fuselage 1/16 sheet grain running crosswise Follow lower fuselage frames add two 3/16 sq stringers Make two additional lower wing ribs t trimmed fit wing root section glue place wing fuselage side resulting small wing bay covered 1/32 sheet top 106 Model Aviation 4 Kraftsmanship kit processed AAMCO GOLD BALSAThis Trainer will blow apart hits ground GREATEST B/C BASIC TBAINEB Design & Kit ALL TIME Ask over 25000 satisfied builders H-BAY dealers sold themSHALL WE SAY MORE Asdresvs Aircraft Model Co Inc US Rte 1& North St Topsijeld Mass 01983 887-8541 Support AMA Price $3995 kit per doflar bar em bottom Radio Hatch hatch shown pians satisfactory fit constructed model thus truly conforming contours made t consists two end frames two sides top Build complete box cut out cockpit outline sides top add windscreen small screw keeps hatch place Single-Channel Installation Shown plans typical single-channel system Shown Ace Baby Twin actuator use another system make neces sary changes structure before con struction has proceeded too far Following instructions assume Ace system Wrap receiver battery foam rubber locate far forward possible small scrap frame made t helps keep items position actuator bolted 1/16 plywood platform built over wing structure fuselage platform rigged slight angle torque wire can run straight back rudder small nut epoxied under ply platform used actuator attachment torque wire bent right angles its forward end end attached arm actuator scrap plastic tubing back end torque wire runs through balsa block fairing scrap inner nyrod epoxied inside block used bearing Rudder actuator made scrap wire small loop bent its lower end actuator installed together torque wire slip loop over rear end torque wire Center actuator check small wire vertical solder two wires together Rudder actuator wire fits loop bolted rudder small piece plastic tube slipped over wire helps reduce interference radio Two-Channel Installation used Can non fitted radio cavity quite easily receiver servo screwed plate epoxied onto two hardwood rails attached fuselage side battery pack located front underneath ply plate installed prior fitting receiver Pushrods made 1/16 wire alsa connecting servos typical installation Ace servos new small Kraft equipment can befitted emphasis placing heavier pieces radio forward Covering single-channel version covered colored tissue clear dope finish wings color dope fuse lagethis keep weight low possible because engine intended use isnt powerhouse used two-channel model used Solarfilm over lightweight finish lower Beautiful New 44 Tn-Pacer developed 2 4 channel RiC expertly designed featuring accurately die-cut Balsa pre cisely vacuum-formed parts Hardware detailed Plans Instructions powered version good idea dont get too carried away trim scheme Flying First ground-check order Determine model balances around CG location shown Look remove warps found two-channel version will take off quite happily runway single-channel model better off hand launched Capability determined first flight perform several test ffights making small revisions balance control throws determine optimum settings should fun CL Aerobatics/Paul continued page 35 according PAMPA President Keith Trostle Museums 7000-foot runway will accommodate anybodys line length will available week practice remember 76 Nats runway used CL racing events RC pylon will first combined tryouts stunt speed team race since 1971 Some Precision Aerobatics judges have already lined up event director Keith Trostle World Champion Bob Hunt scheduled assistant event director Doug McGinnis Fawn Grove PA 17321 has written Model Aviation wanting know stunt planes can fly have symmetrical airfoil should create reduced air pressure both top bottom wing Perhaps some theoretical types could help clear up Lou Dudka New Jersey comes method finishing stunt plane using Hobbypoxy white undercoater H-i 9 says put two coats clear dope over bare wood sanded lightly 220 Hobbypoxy white undercoater mixed up 2 parts white part hardener allowed sit two days ajar open after mixing precuring undercoater applied playing card method brush thickly use playing card other stiff cardboard scrape off second coat applied quite lightly put plane Sand 150 220 paper dry should fill wood completely Next base coat Aero-gloss clear sprayed Two coats best give paint good base adhere favorite paint applied dynamite finish According Lou method just will shrink upon final drying still too late volunteer work 1979 Nationals Lincoln Ne braska July 30-August 4 Event director Lanny Shorts still needs judges recorders circle engineers set up paint lines assistant pit bosses score tabulator couriers May1979 107 L Kit FS37$2995Scale 1~1 Another Great R/C KitFor 049-1O Engines
Edition: Model Aviation - 1979/05
Page Numbers: 32, 33, 34, 106, 107
WHEN started design Peliban really hadnt made firm decision about some its details wanted smallish biplane should have rudder elevator just rudder control What sort engine should use Would use simple single leg undercarriage something built up Problems problems Eventually structure less finalized still no decisions number channels etc. lly inspira tion struck Rather wony about decisions Id make two models single-channel two channels Id use low-powered engine single-leg gear single-channel model hotter engine complex undercarriage two-channel single-channel model fitted Ace radio Baby Twin actuator cc English diesel power unit other used Cox 049 QZ Cannon radio Both models fly expected single-channel version being sedate just right lazy afternoon sport flying excitement Cox-powered version should tried good pro peller some hot fuel model will keep thumbs very busy plans show various pieces building both one- two-channel ver sions both undercarriage systems also 0@ An easy-to-build pleasant flier either two channels 1 /2A power Jack Headley Happy Bipe wing hatch removed gizzards exposed Forward isthe brick CG aft mini servo Right Typical wire pushrod end nylon rudder horn adjustable nylon clevis sporty little bipe great fun confined apaces stuntable getting uptight mounting scheme radial beammounted engines wings basic fuselage common two-channel model rudder made thicker stock better compat ibility hinges whereas single-channel simple t rudder adequate sewn fin similar manner tail planes two versions different Naturally its better use higherpowered motor forthe two-channel version either Cox QZR/C Medallion tank mount suggested lower powered single-channel model either mild Cox diesel about icc capacity will OK Fuselage basically sheet box provisions either radial beammounted engine has opening topside underneath top wing instal lation access equipment Con struction begins selecting two similar pieces t fuselage sides Its important get sheets similar weight bending stifThess otherwise rather lopsided fuselage might emerge Place plans over ts pin prick out outline side onto sheeting Join dots soft pencil cut outline Sand smooth transfer outline onto other piece sheet cut out fuselage side Tape two sides together make final pass sand paper two identical sides obtained Next step make pieces cabane structure items P1 2 3 hardwood cut size After covering plans wax paper right-hand fuselage side pinned down onto plan item P1 Epoxy items P2 3 onto both fuselage side P1 Next make cement place IiA ALL RIRSOPA3 SG WARD NO LOGSEWDE HII ____________ ___________ ___________ ___ TRAL 0 EDGE TR _______________I- FUSELAGE BOT TOW %PLTIFUSELAGE SIDESA-IOPCYCWAMREL jSWWU SEW_RUODER/ I65W 0 SW _/_ ___________OUTLINETYR CADOWEL ____________ ER FOUF UEPOXY/\\RUOGfA/I__ LONGERONSI 3 _____ TWO CHANNELT ---SOLDER ______3XOSR It----- I-- _______ ROT TOM LONGEROWS 6SO O RE XY TANA TORQUE ADO ASIlNSTTO RUDDER FRAMES ERDOY DING EDGE ____ _____ALTERNATE3j10 PLY1 ROE PS W3 0IOIROOODR~ LII DRHALL RRS H AI UNLESS H SPORT RIPLANE FOR SWGF P E LI B N DR TWO CHANNEL OSAND DRAWN May1979 33 V 0 N w 0 w w w -J -J Cd z -J 0 w N CR -I -J UTRAILING EDDE DR sheet doublers forward fuselage area also 3/16 triangular strip serves additional mounting area tailpiane gluing has dried remove side plans make left fuselage side using back side plans frames come next F2 F5 can made illustrated plan Fl however will depend engine intend use radial-mounted Cox Fl sketched plans made other motor make suitable modifications before gluing F place Installation frames begins F 1 F2 secure bend rear fuselage sides together glue F3 4 5 place intend use single-leg under carriage should made attached F 1 before frame finally glued place Next add X ling edge stock behind Fl reinforcement balsa blocks around engine youre intending use beam-mounted engine hardwood bearers plywood plate now installed balsa blocks around nose arranged include some way drain used fuel away fuselage balsa fairing blocks depend motor used object fair nose some pleasing shape However prac tical reasons some cutouts example needle valve may unavoidable remaining items attached stage two upper 3/16 sq longerons Wings The upper wing has larger span chord lower wing Straight dihedral used both wings top wing having larger dihedral bottom lower wing permanently attached fuselage upper attached cabane structure rubber bands upper wing removed access radio compartment Both wings constructed similar manner Top Wing Being 30 span top wing first built piece 36 lengths balsa cut middle rejoined using plywood doublers center section Pin down onto plan leading trailing edge pieces plus 3/16 sq lower main spar Cutout 18 upper wing ribs hard 1/16 sheet notch main spars glue central four place After upper main spar cemented onto ribs has dried cut wing center section two halves pin halves flat onto building board Trim center ends other wing half correct angle making sure good butt joint obtained wings Continued page 106 34 Model Aviation Ace system rudder-only job Forward lathe receiver behind ltthe pulse magnetic actuator actuator rudder slave transmitter pulse average out stick position Note Mills diesel Right Wire control yoke simple figure-B stitch hinging have choice Vee landing gear simple single strut installationalso shown plan Wing saddle struts made hardwoodepoxiedand uprights go down fuselage ubiquitous Cox spring starter quiet QRC version ideal forschoolyard flying neighbors might complain minutes Exhaust hardly audible SAM Champs Lyn Haslam says Saltair Modelport outside Salt Lake City Utah much improved site after last years New Jersey Pine Barrens Dates July 24 25 26 week before Lincoln Nats dates coincide Mormon Pioneer Days festivities Salt Lake Clarence Haught will have details next months Model Aviation Dee B Mathews 506 S Walnu4 Greensburg KS 67054 RC Pylon/Hager continued page 31 some tips 500 racing might helpful As racings events get out what put want win must put out extra effort Build plane light racing air- plane must well built dont skimp Spend little time checking wood kit light weight Replace seems heavy side important use proper amount glue Glue running down inside plane adds extra weight weight plane very important dont use too much glue try make well-built plane little extra effort time building will benefit end crooked plane will disad vantage start use iron-on covering make sure edges down use super MonoKote seal control surfaces hinge line sealed will create less drag control surfaces will much effective Next time contest take look some faster guys planes will find well built planes takes lot practice fly good course neat thing about 500 going use plane sport plane time fly can practice session future issues will discuss other types racing Next month will go safety something need get involved no matter what fly column reader Any comments things would like read about please let know can send mail directly Bill Hager 5200 Rye Drive Dayton OH 45424 Peliban/Headley continued page 34 aligned correct dihedral angle angle found putting wood block 2 high under tip free wing panel Epoxy spars together center section satisfactory joint has made make epoxy place 1/16 ply wingjoiners WI W2 Addthe remaining center section ribs will need little trimming before can glued place wing tips made t balsa last items installed upper wing After have attached wing sanded its final contour prepared covering Lower Wing constructed single piece exactly same way top wing Pin down onto building board leading trailing edge pieces also lower main spar hard 1/16 sheet cut out ten lower wing ribs glue place Cement upper 3/16 sq top main spar ribs before cut wing two pieces center line rejoin using 1/16 ply wing joiners W3 4 Add t wing tips sand wing airfoil shape shown plans Construction lower wing will resume after wing has glued onto fuselage Tall plane begins assembly outline composed strips 3/16 X balsa Pin down onto plan make tail plane tips scraps 3/16 sheet glue place four required ribs 3/16 sq Center section tail plane reinforced two pieces 3/16 sheet gap between provided fin attached during assembly single-channel version tail plane completed adding two pieces softish 3/16 sheet represent elevators Glueinplacethenthindowntoabout 1/16 trailing edge elevator two-channel version cut slightly harder 3/16 sheet good way making two-piece elevators first make single full-length strip initially notched center 3/16 dowel joiner Epoxy dowel place after can cut out V-shaped notch center elevator chamfered about 1/16 thick trailing edge Sand its leading edge full radius have sanding block hand full radius put tail plane outline Fin Rudder fin constructed similar way tail plane An outline 3/16 sheet made single 3/16 sq rib added Since fin extends tail plane leave enough material make key piece Sand full radius outside edges except bottom strip rudder thickness depends system youre going use single channel rudder cut piece sheet rounded along edges two-channel use 3/16 sheet chamfer similar manner elevator Assembly first items concern fuselage lower wing Cut slots fuselage wing leading edge main spar trailing edge rests bottom body check two items correctly aligned before ce menting wing place Attach tail plane making sure alignment OK both top front views before gluing Cement fin slot provided use two-legged undercarriage now installed wiire legs attached two ood plates J bolts plates being notched fuselage sides Check alignment before finally tight ening bolts epoxy nuts place Close bottom fuselage 1/16 sheet grain running crosswise Follow lower fuselage frames add two 3/16 sq stringers Make two additional lower wing ribs t trimmed fit wing root section glue place wing fuselage side resulting small wing bay covered 1/32 sheet top 106 Model Aviation 4 Kraftsmanship kit processed AAMCO GOLD BALSAThis Trainer will blow apart hits ground GREATEST B/C BASIC TBAINEB Design & Kit ALL TIME Ask over 25000 satisfied builders H-BAY dealers sold themSHALL WE SAY MORE Asdresvs Aircraft Model Co Inc US Rte 1& North St Topsijeld Mass 01983 887-8541 Support AMA Price $3995 kit per doflar bar em bottom Radio Hatch hatch shown pians satisfactory fit constructed model thus truly conforming contours made t consists two end frames two sides top Build complete box cut out cockpit outline sides top add windscreen small screw keeps hatch place Single-Channel Installation Shown plans typical single-channel system Shown Ace Baby Twin actuator use another system make neces sary changes structure before con struction has proceeded too far Following instructions assume Ace system Wrap receiver battery foam rubber locate far forward possible small scrap frame made t helps keep items position actuator bolted 1/16 plywood platform built over wing structure fuselage platform rigged slight angle torque wire can run straight back rudder small nut epoxied under ply platform used actuator attachment torque wire bent right angles its forward end end attached arm actuator scrap plastic tubing back end torque wire runs through balsa block fairing scrap inner nyrod epoxied inside block used bearing Rudder actuator made scrap wire small loop bent its lower end actuator installed together torque wire slip loop over rear end torque wire Center actuator check small wire vertical solder two wires together Rudder actuator wire fits loop bolted rudder small piece plastic tube slipped over wire helps reduce interference radio Two-Channel Installation used Can non fitted radio cavity quite easily receiver servo screwed plate epoxied onto two hardwood rails attached fuselage side battery pack located front underneath ply plate installed prior fitting receiver Pushrods made 1/16 wire alsa connecting servos typical installation Ace servos new small Kraft equipment can befitted emphasis placing heavier pieces radio forward Covering single-channel version covered colored tissue clear dope finish wings color dope fuse lagethis keep weight low possible because engine intended use isnt powerhouse used two-channel model used Solarfilm over lightweight finish lower Beautiful New 44 Tn-Pacer developed 2 4 channel RiC expertly designed featuring accurately die-cut Balsa pre cisely vacuum-formed parts Hardware detailed Plans Instructions powered version good idea dont get too carried away trim scheme Flying First ground-check order Determine model balances around CG location shown Look remove warps found two-channel version will take off quite happily runway single-channel model better off hand launched Capability determined first flight perform several test ffights making small revisions balance control throws determine optimum settings should fun CL Aerobatics/Paul continued page 35 according PAMPA President Keith Trostle Museums 7000-foot runway will accommodate anybodys line length will available week practice remember 76 Nats runway used CL racing events RC pylon will first combined tryouts stunt speed team race since 1971 Some Precision Aerobatics judges have already lined up event director Keith Trostle World Champion Bob Hunt scheduled assistant event director Doug McGinnis Fawn Grove PA 17321 has written Model Aviation wanting know stunt planes can fly have symmetrical airfoil should create reduced air pressure both top bottom wing Perhaps some theoretical types could help clear up Lou Dudka New Jersey comes method finishing stunt plane using Hobbypoxy white undercoater H-i 9 says put two coats clear dope over bare wood sanded lightly 220 Hobbypoxy white undercoater mixed up 2 parts white part hardener allowed sit two days ajar open after mixing precuring undercoater applied playing card method brush thickly use playing card other stiff cardboard scrape off second coat applied quite lightly put plane Sand 150 220 paper dry should fill wood completely Next base coat Aero-gloss clear sprayed Two coats best give paint good base adhere favorite paint applied dynamite finish According Lou method just will shrink upon final drying still too late volunteer work 1979 Nationals Lincoln Ne braska July 30-August 4 Event director Lanny Shorts still needs judges recorders circle engineers set up paint lines assistant pit bosses score tabulator couriers May1979 107 L Kit FS37$2995Scale 1~1 Another Great R/C KitFor 049-1O Engines
Edition: Model Aviation - 1979/05
Page Numbers: 32, 33, 34, 106, 107
WHEN started design Peliban really hadnt made firm decision about some its details wanted smallish biplane should have rudder elevator just rudder control What sort engine should use Would use simple single leg undercarriage something built up Problems problems Eventually structure less finalized still no decisions number channels etc. lly inspira tion struck Rather wony about decisions Id make two models single-channel two channels Id use low-powered engine single-leg gear single-channel model hotter engine complex undercarriage two-channel single-channel model fitted Ace radio Baby Twin actuator cc English diesel power unit other used Cox 049 QZ Cannon radio Both models fly expected single-channel version being sedate just right lazy afternoon sport flying excitement Cox-powered version should tried good pro peller some hot fuel model will keep thumbs very busy plans show various pieces building both one- two-channel ver sions both undercarriage systems also 0@ An easy-to-build pleasant flier either two channels 1 /2A power Jack Headley Happy Bipe wing hatch removed gizzards exposed Forward isthe brick CG aft mini servo Right Typical wire pushrod end nylon rudder horn adjustable nylon clevis sporty little bipe great fun confined apaces stuntable getting uptight mounting scheme radial beammounted engines wings basic fuselage common two-channel model rudder made thicker stock better compat ibility hinges whereas single-channel simple t rudder adequate sewn fin similar manner tail planes two versions different Naturally its better use higherpowered motor forthe two-channel version either Cox QZR/C Medallion tank mount suggested lower powered single-channel model either mild Cox diesel about icc capacity will OK Fuselage basically sheet box provisions either radial beammounted engine has opening topside underneath top wing instal lation access equipment Con struction begins selecting two similar pieces t fuselage sides Its important get sheets similar weight bending stifThess otherwise rather lopsided fuselage might emerge Place plans over ts pin prick out outline side onto sheeting Join dots soft pencil cut outline Sand smooth transfer outline onto other piece sheet cut out fuselage side Tape two sides together make final pass sand paper two identical sides obtained Next step make pieces cabane structure items P1 2 3 hardwood cut size After covering plans wax paper right-hand fuselage side pinned down onto plan item P1 Epoxy items P2 3 onto both fuselage side P1 Next make cement place IiA ALL RIRSOPA3 SG WARD NO LOGSEWDE HII ____________ ___________ ___________ ___ TRAL 0 EDGE TR _______________I- FUSELAGE BOT TOW %PLTIFUSELAGE SIDESA-IOPCYCWAMREL jSWWU SEW_RUODER/ I65W 0 SW _/_ ___________OUTLINETYR CADOWEL ____________ ER FOUF UEPOXY/\\RUOGfA/I__ LONGERONSI 3 _____ TWO CHANNELT ---SOLDER ______3XOSR It----- I-- _______ ROT TOM LONGEROWS 6SO O RE XY TANA TORQUE ADO ASIlNSTTO RUDDER FRAMES ERDOY DING EDGE ____ _____ALTERNATE3j10 PLY1 ROE PS W3 0IOIROOODR~ LII DRHALL RRS H AI UNLESS H SPORT RIPLANE FOR SWGF P E LI B N DR TWO CHANNEL OSAND DRAWN May1979 33 V 0 N w 0 w w w -J -J Cd z -J 0 w N CR -I -J UTRAILING EDDE DR sheet doublers forward fuselage area also 3/16 triangular strip serves additional mounting area tailpiane gluing has dried remove side plans make left fuselage side using back side plans frames come next F2 F5 can made illustrated plan Fl however will depend engine intend use radial-mounted Cox Fl sketched plans made other motor make suitable modifications before gluing F place Installation frames begins F 1 F2 secure bend rear fuselage sides together glue F3 4 5 place intend use single-leg under carriage should made attached F 1 before frame finally glued place Next add X ling edge stock behind Fl reinforcement balsa blocks around engine youre intending use beam-mounted engine hardwood bearers plywood plate now installed balsa blocks around nose arranged include some way drain used fuel away fuselage balsa fairing blocks depend motor used object fair nose some pleasing shape However prac tical reasons some cutouts example needle valve may unavoidable remaining items attached stage two upper 3/16 sq longerons Wings The upper wing has larger span chord lower wing Straight dihedral used both wings top wing having larger dihedral bottom lower wing permanently attached fuselage upper attached cabane structure rubber bands upper wing removed access radio compartment Both wings constructed similar manner Top Wing Being 30 span top wing first built piece 36 lengths balsa cut middle rejoined using plywood doublers center section Pin down onto plan leading trailing edge pieces plus 3/16 sq lower main spar Cutout 18 upper wing ribs hard 1/16 sheet notch main spars glue central four place After upper main spar cemented onto ribs has dried cut wing center section two halves pin halves flat onto building board Trim center ends other wing half correct angle making sure good butt joint obtained wings Continued page 106 34 Model Aviation Ace system rudder-only job Forward lathe receiver behind ltthe pulse magnetic actuator actuator rudder slave transmitter pulse average out stick position Note Mills diesel Right Wire control yoke simple figure-B stitch hinging have choice Vee landing gear simple single strut installationalso shown plan Wing saddle struts made hardwoodepoxiedand uprights go down fuselage ubiquitous Cox spring starter quiet QRC version ideal forschoolyard flying neighbors might complain minutes Exhaust hardly audible SAM Champs Lyn Haslam says Saltair Modelport outside Salt Lake City Utah much improved site after last years New Jersey Pine Barrens Dates July 24 25 26 week before Lincoln Nats dates coincide Mormon Pioneer Days festivities Salt Lake Clarence Haught will have details next months Model Aviation Dee B Mathews 506 S Walnu4 Greensburg KS 67054 RC Pylon/Hager continued page 31 some tips 500 racing might helpful As racings events get out what put want win must put out extra effort Build plane light racing air- plane must well built dont skimp Spend little time checking wood kit light weight Replace seems heavy side important use proper amount glue Glue running down inside plane adds extra weight weight plane very important dont use too much glue try make well-built plane little extra effort time building will benefit end crooked plane will disad vantage start use iron-on covering make sure edges down use super MonoKote seal control surfaces hinge line sealed will create less drag control surfaces will much effective Next time contest take look some faster guys planes will find well built planes takes lot practice fly good course neat thing about 500 going use plane sport plane time fly can practice session future issues will discuss other types racing Next month will go safety something need get involved no matter what fly column reader Any comments things would like read about please let know can send mail directly Bill Hager 5200 Rye Drive Dayton OH 45424 Peliban/Headley continued page 34 aligned correct dihedral angle angle found putting wood block 2 high under tip free wing panel Epoxy spars together center section satisfactory joint has made make epoxy place 1/16 ply wingjoiners WI W2 Addthe remaining center section ribs will need little trimming before can glued place wing tips made t balsa last items installed upper wing After have attached wing sanded its final contour prepared covering Lower Wing constructed single piece exactly same way top wing Pin down onto building board leading trailing edge pieces also lower main spar hard 1/16 sheet cut out ten lower wing ribs glue place Cement upper 3/16 sq top main spar ribs before cut wing two pieces center line rejoin using 1/16 ply wing joiners W3 4 Add t wing tips sand wing airfoil shape shown plans Construction lower wing will resume after wing has glued onto fuselage Tall plane begins assembly outline composed strips 3/16 X balsa Pin down onto plan make tail plane tips scraps 3/16 sheet glue place four required ribs 3/16 sq Center section tail plane reinforced two pieces 3/16 sheet gap between provided fin attached during assembly single-channel version tail plane completed adding two pieces softish 3/16 sheet represent elevators Glueinplacethenthindowntoabout 1/16 trailing edge elevator two-channel version cut slightly harder 3/16 sheet good way making two-piece elevators first make single full-length strip initially notched center 3/16 dowel joiner Epoxy dowel place after can cut out V-shaped notch center elevator chamfered about 1/16 thick trailing edge Sand its leading edge full radius have sanding block hand full radius put tail plane outline Fin Rudder fin constructed similar way tail plane An outline 3/16 sheet made single 3/16 sq rib added Since fin extends tail plane leave enough material make key piece Sand full radius outside edges except bottom strip rudder thickness depends system youre going use single channel rudder cut piece sheet rounded along edges two-channel use 3/16 sheet chamfer similar manner elevator Assembly first items concern fuselage lower wing Cut slots fuselage wing leading edge main spar trailing edge rests bottom body check two items correctly aligned before ce menting wing place Attach tail plane making sure alignment OK both top front views before gluing Cement fin slot provided use two-legged undercarriage now installed wiire legs attached two ood plates J bolts plates being notched fuselage sides Check alignment before finally tight ening bolts epoxy nuts place Close bottom fuselage 1/16 sheet grain running crosswise Follow lower fuselage frames add two 3/16 sq stringers Make two additional lower wing ribs t trimmed fit wing root section glue place wing fuselage side resulting small wing bay covered 1/32 sheet top 106 Model Aviation 4 Kraftsmanship kit processed AAMCO GOLD BALSAThis Trainer will blow apart hits ground GREATEST B/C BASIC TBAINEB Design & Kit ALL TIME Ask over 25000 satisfied builders H-BAY dealers sold themSHALL WE SAY MORE Asdresvs Aircraft Model Co Inc US Rte 1& North St Topsijeld Mass 01983 887-8541 Support AMA Price $3995 kit per doflar bar em bottom Radio Hatch hatch shown pians satisfactory fit constructed model thus truly conforming contours made t consists two end frames two sides top Build complete box cut out cockpit outline sides top add windscreen small screw keeps hatch place Single-Channel Installation Shown plans typical single-channel system Shown Ace Baby Twin actuator use another system make neces sary changes structure before con struction has proceeded too far Following instructions assume Ace system Wrap receiver battery foam rubber locate far forward possible small scrap frame made t helps keep items position actuator bolted 1/16 plywood platform built over wing structure fuselage platform rigged slight angle torque wire can run straight back rudder small nut epoxied under ply platform used actuator attachment torque wire bent right angles its forward end end attached arm actuator scrap plastic tubing back end torque wire runs through balsa block fairing scrap inner nyrod epoxied inside block used bearing Rudder actuator made scrap wire small loop bent its lower end actuator installed together torque wire slip loop over rear end torque wire Center actuator check small wire vertical solder two wires together Rudder actuator wire fits loop bolted rudder small piece plastic tube slipped over wire helps reduce interference radio Two-Channel Installation used Can non fitted radio cavity quite easily receiver servo screwed plate epoxied onto two hardwood rails attached fuselage side battery pack located front underneath ply plate installed prior fitting receiver Pushrods made 1/16 wire alsa connecting servos typical installation Ace servos new small Kraft equipment can befitted emphasis placing heavier pieces radio forward Covering single-channel version covered colored tissue clear dope finish wings color dope fuse lagethis keep weight low possible because engine intended use isnt powerhouse used two-channel model used Solarfilm over lightweight finish lower Beautiful New 44 Tn-Pacer developed 2 4 channel RiC expertly designed featuring accurately die-cut Balsa pre cisely vacuum-formed parts Hardware detailed Plans Instructions powered version good idea dont get too carried away trim scheme Flying First ground-check order Determine model balances around CG location shown Look remove warps found two-channel version will take off quite happily runway single-channel model better off hand launched Capability determined first flight perform several test ffights making small revisions balance control throws determine optimum settings should fun CL Aerobatics/Paul continued page 35 according PAMPA President Keith Trostle Museums 7000-foot runway will accommodate anybodys line length will available week practice remember 76 Nats runway used CL racing events RC pylon will first combined tryouts stunt speed team race since 1971 Some Precision Aerobatics judges have already lined up event director Keith Trostle World Champion Bob Hunt scheduled assistant event director Doug McGinnis Fawn Grove PA 17321 has written Model Aviation wanting know stunt planes can fly have symmetrical airfoil should create reduced air pressure both top bottom wing Perhaps some theoretical types could help clear up Lou Dudka New Jersey comes method finishing stunt plane using Hobbypoxy white undercoater H-i 9 says put two coats clear dope over bare wood sanded lightly 220 Hobbypoxy white undercoater mixed up 2 parts white part hardener allowed sit two days ajar open after mixing precuring undercoater applied playing card method brush thickly use playing card other stiff cardboard scrape off second coat applied quite lightly put plane Sand 150 220 paper dry should fill wood completely Next base coat Aero-gloss clear sprayed Two coats best give paint good base adhere favorite paint applied dynamite finish According Lou method just will shrink upon final drying still too late volunteer work 1979 Nationals Lincoln Ne braska July 30-August 4 Event director Lanny Shorts still needs judges recorders circle engineers set up paint lines assistant pit bosses score tabulator couriers May1979 107 L Kit FS37$2995Scale 1~1 Another Great R/C KitFor 049-1O Engines
Edition: Model Aviation - 1979/05
Page Numbers: 32, 33, 34, 106, 107
WHEN started design Peliban really hadnt made firm decision about some its details wanted smallish biplane should have rudder elevator just rudder control What sort engine should use Would use simple single leg undercarriage something built up Problems problems Eventually structure less finalized still no decisions number channels etc. lly inspira tion struck Rather wony about decisions Id make two models single-channel two channels Id use low-powered engine single-leg gear single-channel model hotter engine complex undercarriage two-channel single-channel model fitted Ace radio Baby Twin actuator cc English diesel power unit other used Cox 049 QZ Cannon radio Both models fly expected single-channel version being sedate just right lazy afternoon sport flying excitement Cox-powered version should tried good pro peller some hot fuel model will keep thumbs very busy plans show various pieces building both one- two-channel ver sions both undercarriage systems also 0@ An easy-to-build pleasant flier either two channels 1 /2A power Jack Headley Happy Bipe wing hatch removed gizzards exposed Forward isthe brick CG aft mini servo Right Typical wire pushrod end nylon rudder horn adjustable nylon clevis sporty little bipe great fun confined apaces stuntable getting uptight mounting scheme radial beammounted engines wings basic fuselage common two-channel model rudder made thicker stock better compat ibility hinges whereas single-channel simple t rudder adequate sewn fin similar manner tail planes two versions different Naturally its better use higherpowered motor forthe two-channel version either Cox QZR/C Medallion tank mount suggested lower powered single-channel model either mild Cox diesel about icc capacity will OK Fuselage basically sheet box provisions either radial beammounted engine has opening topside underneath top wing instal lation access equipment Con struction begins selecting two similar pieces t fuselage sides Its important get sheets similar weight bending stifThess otherwise rather lopsided fuselage might emerge Place plans over ts pin prick out outline side onto sheeting Join dots soft pencil cut outline Sand smooth transfer outline onto other piece sheet cut out fuselage side Tape two sides together make final pass sand paper two identical sides obtained Next step make pieces cabane structure items P1 2 3 hardwood cut size After covering plans wax paper right-hand fuselage side pinned down onto plan item P1 Epoxy items P2 3 onto both fuselage side P1 Next make cement place IiA ALL RIRSOPA3 SG WARD NO LOGSEWDE HII ____________ ___________ ___________ ___ TRAL 0 EDGE TR _______________I- FUSELAGE BOT TOW %PLTIFUSELAGE SIDESA-IOPCYCWAMREL jSWWU SEW_RUODER/ I65W 0 SW _/_ ___________OUTLINETYR CADOWEL ____________ ER FOUF UEPOXY/\\RUOGfA/I__ LONGERONSI 3 _____ TWO CHANNELT ---SOLDER ______3XOSR It----- I-- _______ ROT TOM LONGEROWS 6SO O RE XY TANA TORQUE ADO ASIlNSTTO RUDDER FRAMES ERDOY DING EDGE ____ _____ALTERNATE3j10 PLY1 ROE PS W3 0IOIROOODR~ LII DRHALL RRS H AI UNLESS H SPORT RIPLANE FOR SWGF P E LI B N DR TWO CHANNEL OSAND DRAWN May1979 33 V 0 N w 0 w w w -J -J Cd z -J 0 w N CR -I -J UTRAILING EDDE DR sheet doublers forward fuselage area also 3/16 triangular strip serves additional mounting area tailpiane gluing has dried remove side plans make left fuselage side using back side plans frames come next F2 F5 can made illustrated plan Fl however will depend engine intend use radial-mounted Cox Fl sketched plans made other motor make suitable modifications before gluing F place Installation frames begins F 1 F2 secure bend rear fuselage sides together glue F3 4 5 place intend use single-leg under carriage should made attached F 1 before frame finally glued place Next add X ling edge stock behind Fl reinforcement balsa blocks around engine youre intending use beam-mounted engine hardwood bearers plywood plate now installed balsa blocks around nose arranged include some way drain used fuel away fuselage balsa fairing blocks depend motor used object fair nose some pleasing shape However prac tical reasons some cutouts example needle valve may unavoidable remaining items attached stage two upper 3/16 sq longerons Wings The upper wing has larger span chord lower wing Straight dihedral used both wings top wing having larger dihedral bottom lower wing permanently attached fuselage upper attached cabane structure rubber bands upper wing removed access radio compartment Both wings constructed similar manner Top Wing Being 30 span top wing first built piece 36 lengths balsa cut middle rejoined using plywood doublers center section Pin down onto plan leading trailing edge pieces plus 3/16 sq lower main spar Cutout 18 upper wing ribs hard 1/16 sheet notch main spars glue central four place After upper main spar cemented onto ribs has dried cut wing center section two halves pin halves flat onto building board Trim center ends other wing half correct angle making sure good butt joint obtained wings Continued page 106 34 Model Aviation Ace system rudder-only job Forward lathe receiver behind ltthe pulse magnetic actuator actuator rudder slave transmitter pulse average out stick position Note Mills diesel Right Wire control yoke simple figure-B stitch hinging have choice Vee landing gear simple single strut installationalso shown plan Wing saddle struts made hardwoodepoxiedand uprights go down fuselage ubiquitous Cox spring starter quiet QRC version ideal forschoolyard flying neighbors might complain minutes Exhaust hardly audible SAM Champs Lyn Haslam says Saltair Modelport outside Salt Lake City Utah much improved site after last years New Jersey Pine Barrens Dates July 24 25 26 week before Lincoln Nats dates coincide Mormon Pioneer Days festivities Salt Lake Clarence Haught will have details next months Model Aviation Dee B Mathews 506 S Walnu4 Greensburg KS 67054 RC Pylon/Hager continued page 31 some tips 500 racing might helpful As racings events get out what put want win must put out extra effort Build plane light racing air- plane must well built dont skimp Spend little time checking wood kit light weight Replace seems heavy side important use proper amount glue Glue running down inside plane adds extra weight weight plane very important dont use too much glue try make well-built plane little extra effort time building will benefit end crooked plane will disad vantage start use iron-on covering make sure edges down use super MonoKote seal control surfaces hinge line sealed will create less drag control surfaces will much effective Next time contest take look some faster guys planes will find well built planes takes lot practice fly good course neat thing about 500 going use plane sport plane time fly can practice session future issues will discuss other types racing Next month will go safety something need get involved no matter what fly column reader Any comments things would like read about please let know can send mail directly Bill Hager 5200 Rye Drive Dayton OH 45424 Peliban/Headley continued page 34 aligned correct dihedral angle angle found putting wood block 2 high under tip free wing panel Epoxy spars together center section satisfactory joint has made make epoxy place 1/16 ply wingjoiners WI W2 Addthe remaining center section ribs will need little trimming before can glued place wing tips made t balsa last items installed upper wing After have attached wing sanded its final contour prepared covering Lower Wing constructed single piece exactly same way top wing Pin down onto building board leading trailing edge pieces also lower main spar hard 1/16 sheet cut out ten lower wing ribs glue place Cement upper 3/16 sq top main spar ribs before cut wing two pieces center line rejoin using 1/16 ply wing joiners W3 4 Add t wing tips sand wing airfoil shape shown plans Construction lower wing will resume after wing has glued onto fuselage Tall plane begins assembly outline composed strips 3/16 X balsa Pin down onto plan make tail plane tips scraps 3/16 sheet glue place four required ribs 3/16 sq Center section tail plane reinforced two pieces 3/16 sheet gap between provided fin attached during assembly single-channel version tail plane completed adding two pieces softish 3/16 sheet represent elevators Glueinplacethenthindowntoabout 1/16 trailing edge elevator two-channel version cut slightly harder 3/16 sheet good way making two-piece elevators first make single full-length strip initially notched center 3/16 dowel joiner Epoxy dowel place after can cut out V-shaped notch center elevator chamfered about 1/16 thick trailing edge Sand its leading edge full radius have sanding block hand full radius put tail plane outline Fin Rudder fin constructed similar way tail plane An outline 3/16 sheet made single 3/16 sq rib added Since fin extends tail plane leave enough material make key piece Sand full radius outside edges except bottom strip rudder thickness depends system youre going use single channel rudder cut piece sheet rounded along edges two-channel use 3/16 sheet chamfer similar manner elevator Assembly first items concern fuselage lower wing Cut slots fuselage wing leading edge main spar trailing edge rests bottom body check two items correctly aligned before ce menting wing place Attach tail plane making sure alignment OK both top front views before gluing Cement fin slot provided use two-legged undercarriage now installed wiire legs attached two ood plates J bolts plates being notched fuselage sides Check alignment before finally tight ening bolts epoxy nuts place Close bottom fuselage 1/16 sheet grain running crosswise Follow lower fuselage frames add two 3/16 sq stringers Make two additional lower wing ribs t trimmed fit wing root section glue place wing fuselage side resulting small wing bay covered 1/32 sheet top 106 Model Aviation 4 Kraftsmanship kit processed AAMCO GOLD BALSAThis Trainer will blow apart hits ground GREATEST B/C BASIC TBAINEB Design & Kit ALL TIME Ask over 25000 satisfied builders H-BAY dealers sold themSHALL WE SAY MORE Asdresvs Aircraft Model Co Inc US Rte 1& North St Topsijeld Mass 01983 887-8541 Support AMA Price $3995 kit per doflar bar em bottom Radio Hatch hatch shown pians satisfactory fit constructed model thus truly conforming contours made t consists two end frames two sides top Build complete box cut out cockpit outline sides top add windscreen small screw keeps hatch place Single-Channel Installation Shown plans typical single-channel system Shown Ace Baby Twin actuator use another system make neces sary changes structure before con struction has proceeded too far Following instructions assume Ace system Wrap receiver battery foam rubber locate far forward possible small scrap frame made t helps keep items position actuator bolted 1/16 plywood platform built over wing structure fuselage platform rigged slight angle torque wire can run straight back rudder small nut epoxied under ply platform used actuator attachment torque wire bent right angles its forward end end attached arm actuator scrap plastic tubing back end torque wire runs through balsa block fairing scrap inner nyrod epoxied inside block used bearing Rudder actuator made scrap wire small loop bent its lower end actuator installed together torque wire slip loop over rear end torque wire Center actuator check small wire vertical solder two wires together Rudder actuator wire fits loop bolted rudder small piece plastic tube slipped over wire helps reduce interference radio Two-Channel Installation used Can non fitted radio cavity quite easily receiver servo screwed plate epoxied onto two hardwood rails attached fuselage side battery pack located front underneath ply plate installed prior fitting receiver Pushrods made 1/16 wire alsa connecting servos typical installation Ace servos new small Kraft equipment can befitted emphasis placing heavier pieces radio forward Covering single-channel version covered colored tissue clear dope finish wings color dope fuse lagethis keep weight low possible because engine intended use isnt powerhouse used two-channel model used Solarfilm over lightweight finish lower Beautiful New 44 Tn-Pacer developed 2 4 channel RiC expertly designed featuring accurately die-cut Balsa pre cisely vacuum-formed parts Hardware detailed Plans Instructions powered version good idea dont get too carried away trim scheme Flying First ground-check order Determine model balances around CG location shown Look remove warps found two-channel version will take off quite happily runway single-channel model better off hand launched Capability determined first flight perform several test ffights making small revisions balance control throws determine optimum settings should fun CL Aerobatics/Paul continued page 35 according PAMPA President Keith Trostle Museums 7000-foot runway will accommodate anybodys line length will available week practice remember 76 Nats runway used CL racing events RC pylon will first combined tryouts stunt speed team race since 1971 Some Precision Aerobatics judges have already lined up event director Keith Trostle World Champion Bob Hunt scheduled assistant event director Doug McGinnis Fawn Grove PA 17321 has written Model Aviation wanting know stunt planes can fly have symmetrical airfoil should create reduced air pressure both top bottom wing Perhaps some theoretical types could help clear up Lou Dudka New Jersey comes method finishing stunt plane using Hobbypoxy white undercoater H-i 9 says put two coats clear dope over bare wood sanded lightly 220 Hobbypoxy white undercoater mixed up 2 parts white part hardener allowed sit two days ajar open after mixing precuring undercoater applied playing card method brush thickly use playing card other stiff cardboard scrape off second coat applied quite lightly put plane Sand 150 220 paper dry should fill wood completely Next base coat Aero-gloss clear sprayed Two coats best give paint good base adhere favorite paint applied dynamite finish According Lou method just will shrink upon final drying still too late volunteer work 1979 Nationals Lincoln Ne braska July 30-August 4 Event director Lanny Shorts still needs judges recorders circle engineers set up paint lines assistant pit bosses score tabulator couriers May1979 107 L Kit FS37$2995Scale 1~1 Another Great R/C KitFor 049-1O Engines
Edition: Model Aviation - 1979/05
Page Numbers: 32, 33, 34, 106, 107
WHEN started design Peliban really hadnt made firm decision about some its details wanted smallish biplane should have rudder elevator just rudder control What sort engine should use Would use simple single leg undercarriage something built up Problems problems Eventually structure less finalized still no decisions number channels etc. lly inspira tion struck Rather wony about decisions Id make two models single-channel two channels Id use low-powered engine single-leg gear single-channel model hotter engine complex undercarriage two-channel single-channel model fitted Ace radio Baby Twin actuator cc English diesel power unit other used Cox 049 QZ Cannon radio Both models fly expected single-channel version being sedate just right lazy afternoon sport flying excitement Cox-powered version should tried good pro peller some hot fuel model will keep thumbs very busy plans show various pieces building both one- two-channel ver sions both undercarriage systems also 0@ An easy-to-build pleasant flier either two channels 1 /2A power Jack Headley Happy Bipe wing hatch removed gizzards exposed Forward isthe brick CG aft mini servo Right Typical wire pushrod end nylon rudder horn adjustable nylon clevis sporty little bipe great fun confined apaces stuntable getting uptight mounting scheme radial beammounted engines wings basic fuselage common two-channel model rudder made thicker stock better compat ibility hinges whereas single-channel simple t rudder adequate sewn fin similar manner tail planes two versions different Naturally its better use higherpowered motor forthe two-channel version either Cox QZR/C Medallion tank mount suggested lower powered single-channel model either mild Cox diesel about icc capacity will OK Fuselage basically sheet box provisions either radial beammounted engine has opening topside underneath top wing instal lation access equipment Con struction begins selecting two similar pieces t fuselage sides Its important get sheets similar weight bending stifThess otherwise rather lopsided fuselage might emerge Place plans over ts pin prick out outline side onto sheeting Join dots soft pencil cut outline Sand smooth transfer outline onto other piece sheet cut out fuselage side Tape two sides together make final pass sand paper two identical sides obtained Next step make pieces cabane structure items P1 2 3 hardwood cut size After covering plans wax paper right-hand fuselage side pinned down onto plan item P1 Epoxy items P2 3 onto both fuselage side P1 Next make cement place IiA ALL RIRSOPA3 SG WARD NO LOGSEWDE HII ____________ ___________ ___________ ___ TRAL 0 EDGE TR _______________I- FUSELAGE BOT TOW %PLTIFUSELAGE SIDESA-IOPCYCWAMREL jSWWU SEW_RUODER/ I65W 0 SW _/_ ___________OUTLINETYR CADOWEL ____________ ER FOUF UEPOXY/\\RUOGfA/I__ LONGERONSI 3 _____ TWO CHANNELT ---SOLDER ______3XOSR It----- I-- _______ ROT TOM LONGEROWS 6SO O RE XY TANA TORQUE ADO ASIlNSTTO RUDDER FRAMES ERDOY DING EDGE ____ _____ALTERNATE3j10 PLY1 ROE PS W3 0IOIROOODR~ LII DRHALL RRS H AI UNLESS H SPORT RIPLANE FOR SWGF P E LI B N DR TWO CHANNEL OSAND DRAWN May1979 33 V 0 N w 0 w w w -J -J Cd z -J 0 w N CR -I -J UTRAILING EDDE DR sheet doublers forward fuselage area also 3/16 triangular strip serves additional mounting area tailpiane gluing has dried remove side plans make left fuselage side using back side plans frames come next F2 F5 can made illustrated plan Fl however will depend engine intend use radial-mounted Cox Fl sketched plans made other motor make suitable modifications before gluing F place Installation frames begins F 1 F2 secure bend rear fuselage sides together glue F3 4 5 place intend use single-leg under carriage should made attached F 1 before frame finally glued place Next add X ling edge stock behind Fl reinforcement balsa blocks around engine youre intending use beam-mounted engine hardwood bearers plywood plate now installed balsa blocks around nose arranged include some way drain used fuel away fuselage balsa fairing blocks depend motor used object fair nose some pleasing shape However prac tical reasons some cutouts example needle valve may unavoidable remaining items attached stage two upper 3/16 sq longerons Wings The upper wing has larger span chord lower wing Straight dihedral used both wings top wing having larger dihedral bottom lower wing permanently attached fuselage upper attached cabane structure rubber bands upper wing removed access radio compartment Both wings constructed similar manner Top Wing Being 30 span top wing first built piece 36 lengths balsa cut middle rejoined using plywood doublers center section Pin down onto plan leading trailing edge pieces plus 3/16 sq lower main spar Cutout 18 upper wing ribs hard 1/16 sheet notch main spars glue central four place After upper main spar cemented onto ribs has dried cut wing center section two halves pin halves flat onto building board Trim center ends other wing half correct angle making sure good butt joint obtained wings Continued page 106 34 Model Aviation Ace system rudder-only job Forward lathe receiver behind ltthe pulse magnetic actuator actuator rudder slave transmitter pulse average out stick position Note Mills diesel Right Wire control yoke simple figure-B stitch hinging have choice Vee landing gear simple single strut installationalso shown plan Wing saddle struts made hardwoodepoxiedand uprights go down fuselage ubiquitous Cox spring starter quiet QRC version ideal forschoolyard flying neighbors might complain minutes Exhaust hardly audible SAM Champs Lyn Haslam says Saltair Modelport outside Salt Lake City Utah much improved site after last years New Jersey Pine Barrens Dates July 24 25 26 week before Lincoln Nats dates coincide Mormon Pioneer Days festivities Salt Lake Clarence Haught will have details next months Model Aviation Dee B Mathews 506 S Walnu4 Greensburg KS 67054 RC Pylon/Hager continued page 31 some tips 500 racing might helpful As racings events get out what put want win must put out extra effort Build plane light racing air- plane must well built dont skimp Spend little time checking wood kit light weight Replace seems heavy side important use proper amount glue Glue running down inside plane adds extra weight weight plane very important dont use too much glue try make well-built plane little extra effort time building will benefit end crooked plane will disad vantage start use iron-on covering make sure edges down use super MonoKote seal control surfaces hinge line sealed will create less drag control surfaces will much effective Next time contest take look some faster guys planes will find well built planes takes lot practice fly good course neat thing about 500 going use plane sport plane time fly can practice session future issues will discuss other types racing Next month will go safety something need get involved no matter what fly column reader Any comments things would like read about please let know can send mail directly Bill Hager 5200 Rye Drive Dayton OH 45424 Peliban/Headley continued page 34 aligned correct dihedral angle angle found putting wood block 2 high under tip free wing panel Epoxy spars together center section satisfactory joint has made make epoxy place 1/16 ply wingjoiners WI W2 Addthe remaining center section ribs will need little trimming before can glued place wing tips made t balsa last items installed upper wing After have attached wing sanded its final contour prepared covering Lower Wing constructed single piece exactly same way top wing Pin down onto building board leading trailing edge pieces also lower main spar hard 1/16 sheet cut out ten lower wing ribs glue place Cement upper 3/16 sq top main spar ribs before cut wing two pieces center line rejoin using 1/16 ply wing joiners W3 4 Add t wing tips sand wing airfoil shape shown plans Construction lower wing will resume after wing has glued onto fuselage Tall plane begins assembly outline composed strips 3/16 X balsa Pin down onto plan make tail plane tips scraps 3/16 sheet glue place four required ribs 3/16 sq Center section tail plane reinforced two pieces 3/16 sheet gap between provided fin attached during assembly single-channel version tail plane completed adding two pieces softish 3/16 sheet represent elevators Glueinplacethenthindowntoabout 1/16 trailing edge elevator two-channel version cut slightly harder 3/16 sheet good way making two-piece elevators first make single full-length strip initially notched center 3/16 dowel joiner Epoxy dowel place after can cut out V-shaped notch center elevator chamfered about 1/16 thick trailing edge Sand its leading edge full radius have sanding block hand full radius put tail plane outline Fin Rudder fin constructed similar way tail plane An outline 3/16 sheet made single 3/16 sq rib added Since fin extends tail plane leave enough material make key piece Sand full radius outside edges except bottom strip rudder thickness depends system youre going use single channel rudder cut piece sheet rounded along edges two-channel use 3/16 sheet chamfer similar manner elevator Assembly first items concern fuselage lower wing Cut slots fuselage wing leading edge main spar trailing edge rests bottom body check two items correctly aligned before ce menting wing place Attach tail plane making sure alignment OK both top front views before gluing Cement fin slot provided use two-legged undercarriage now installed wiire legs attached two ood plates J bolts plates being notched fuselage sides Check alignment before finally tight ening bolts epoxy nuts place Close bottom fuselage 1/16 sheet grain running crosswise Follow lower fuselage frames add two 3/16 sq stringers Make two additional lower wing ribs t trimmed fit wing root section glue place wing fuselage side resulting small wing bay covered 1/32 sheet top 106 Model Aviation 4 Kraftsmanship kit processed AAMCO GOLD BALSAThis Trainer will blow apart hits ground GREATEST B/C BASIC TBAINEB Design & Kit ALL TIME Ask over 25000 satisfied builders H-BAY dealers sold themSHALL WE SAY MORE Asdresvs Aircraft Model Co Inc US Rte 1& North St Topsijeld Mass 01983 887-8541 Support AMA Price $3995 kit per doflar bar em bottom Radio Hatch hatch shown pians satisfactory fit constructed model thus truly conforming contours made t consists two end frames two sides top Build complete box cut out cockpit outline sides top add windscreen small screw keeps hatch place Single-Channel Installation Shown plans typical single-channel system Shown Ace Baby Twin actuator use another system make neces sary changes structure before con struction has proceeded too far Following instructions assume Ace system Wrap receiver battery foam rubber locate far forward possible small scrap frame made t helps keep items position actuator bolted 1/16 plywood platform built over wing structure fuselage platform rigged slight angle torque wire can run straight back rudder small nut epoxied under ply platform used actuator attachment torque wire bent right angles its forward end end attached arm actuator scrap plastic tubing back end torque wire runs through balsa block fairing scrap inner nyrod epoxied inside block used bearing Rudder actuator made scrap wire small loop bent its lower end actuator installed together torque wire slip loop over rear end torque wire Center actuator check small wire vertical solder two wires together Rudder actuator wire fits loop bolted rudder small piece plastic tube slipped over wire helps reduce interference radio Two-Channel Installation used Can non fitted radio cavity quite easily receiver servo screwed plate epoxied onto two hardwood rails attached fuselage side battery pack located front underneath ply plate installed prior fitting receiver Pushrods made 1/16 wire alsa connecting servos typical installation Ace servos new small Kraft equipment can befitted emphasis placing heavier pieces radio forward Covering single-channel version covered colored tissue clear dope finish wings color dope fuse lagethis keep weight low possible because engine intended use isnt powerhouse used two-channel model used Solarfilm over lightweight finish lower Beautiful New 44 Tn-Pacer developed 2 4 channel RiC expertly designed featuring accurately die-cut Balsa pre cisely vacuum-formed parts Hardware detailed Plans Instructions powered version good idea dont get too carried away trim scheme Flying First ground-check order Determine model balances around CG location shown Look remove warps found two-channel version will take off quite happily runway single-channel model better off hand launched Capability determined first flight perform several test ffights making small revisions balance control throws determine optimum settings should fun CL Aerobatics/Paul continued page 35 according PAMPA President Keith Trostle Museums 7000-foot runway will accommodate anybodys line length will available week practice remember 76 Nats runway used CL racing events RC pylon will first combined tryouts stunt speed team race since 1971 Some Precision Aerobatics judges have already lined up event director Keith Trostle World Champion Bob Hunt scheduled assistant event director Doug McGinnis Fawn Grove PA 17321 has written Model Aviation wanting know stunt planes can fly have symmetrical airfoil should create reduced air pressure both top bottom wing Perhaps some theoretical types could help clear up Lou Dudka New Jersey comes method finishing stunt plane using Hobbypoxy white undercoater H-i 9 says put two coats clear dope over bare wood sanded lightly 220 Hobbypoxy white undercoater mixed up 2 parts white part hardener allowed sit two days ajar open after mixing precuring undercoater applied playing card method brush thickly use playing card other stiff cardboard scrape off second coat applied quite lightly put plane Sand 150 220 paper dry should fill wood completely Next base coat Aero-gloss clear sprayed Two coats best give paint good base adhere favorite paint applied dynamite finish According Lou method just will shrink upon final drying still too late volunteer work 1979 Nationals Lincoln Ne braska July 30-August 4 Event director Lanny Shorts still needs judges recorders circle engineers set up paint lines assistant pit bosses score tabulator couriers May1979 107 L Kit FS37$2995Scale 1~1 Another Great R/C KitFor 049-1O Engines