Radio Control SOARING Dan Pruss IF COMPETITION does nothing else does breed new ideas some might suitable top-notch competitor some ideas rub off make Sunday afternoons enjoyable us hackers ideas might simple gadget like Chuck Andersons modified cotter pin uses hold wings tightly fuselage seen AMA Nationals might sophisticated wing construction Swiss use Spartakus models Chucks case slot cut plywood root rib wing bent cotter pin normally has rubberbands through fuselage holding two pins together see photo bent section slid wing rib slots rubber tension holds wings fuselage wing section see photos slice taken Spartakus wing lines drawn through leading edge spars trailing edge added picture help illustrate wing separated before top half glued bottom half method making molds such wing will offered later article wing construction itself labor love molds wings state art two-piece wing four molds two top halves two bottom halves wing section seen picture finished epoxy coat over glass layer millimeter balsa another layer glass forms top skin through vacuum process bottom skin same glass balsa glass spars Styrofoam add little support structure aiding mostly keeping two wing surfaces apart handling Worth trouble Sailplane Probably club has 23 birds theyre exactly alike weight weight distil bution strength alignment can realize advantages Plus parts 23 models interchangeable two photos Andy Keils plane show clever way uncover otherwise hidden work Instead regular canopy-type hatch usually leaves least couple corners inaccessible Keil cuts nose off close leading edge wing -in plywood profile nose section removable made extend fuselage complete accessibility radio compartment possible plywood member also adds strength area sometimes weakened canopy cutout 36 Model Aviation ChuckAnderson came upwiththis neatwlngattach system Rubbeebend hold cotter pin either side fuse wings piug Smail hoies wing rods See text S. en. , isminatlons glass epoxy balsa vacuun-urmed Andy Ksii South Africa deveioped spiffy system getting radio gear nose cap sbove siides off reveai iii Ply plate right mounts servos receiver battery Pin receiver switch Terry Edmonds shows off slick Cailisto Coupled ailerons rudder elevator spoilers Plans available see text John Brown Piacentia CA AMA Nats Champion faithful Icarus Larry Jolly design balsa no fancy stuff just good flying ring ribbon airborne packs switch switch pin pulled long ribbon added safety feature narrow gauge model see Callisto design Terry Edmonds Iowa City IA Construction standard required building supplies Now know narrow fuselage cant have three servos across does have three line Aft battery pack made up four 450 mAh cells mounted -in line standing end receiver Behind servos elevator spoilers aileron/rudder Ninety-degree bellcranks mounted first wing rib bay leg bellcrank extending fuselage allows rudder servo pick up aileron linkage simple clever fashion Ballast mounted wings Designed primarily F3 B contests Terry has also flying ship regular thermal events youre interested plans available Terry Edmonds 1 Lakeview Knoll RR 6 Iowa City IA 52240 Winners Sophisticated models use spaceage materials require hundreds hours produce dont necessarily make winner Take case three summertime champions 1981 come balsa better school building World Champion Dwight Holley Gobbler left few glass class group wincing back Sacramento Ken Bates won LSF Tournament slightly modified Sagitta kit John Brown won AMA Nationals beat comers Two-Meter ship Icarus another kit Browns ship couldnt much simpler controls usually give tailrigger fits simply made up Du-Bro ball-links use ruddervators ball links right line pushrods exit through very rear fuselage Simple neat Over years weve seen development ideas today tend take granted Simple things like spar construction strong enough withstand runaway winch tow hooks two-piece wings simple dozen years back speaking winches remembers launches before turnaround came winches placed upwind end launch site flier downwind end signaled tow Come think thats spars started become stronger Dan Pruss Rt 2 Box 49D Plainfield IL 60544 Polyethylene Fuel Tanks Safe Gasoline Oil Glow F finest blow-molded seamless polyethylene fuel tanks designed hold popular fuels safely conveniently easily removable pick-up tube weighted assure continuous fuel flow during aerobatic maneuvers Regular slimline styles 9 popular sizes ranging 4 16 oz capacities virtually modeling applications March 1982 37 n Bates took 1981 LSF Tournament slightly modified Airtronics Sagitta Entire wing sheeted balsa including spoilers Dwight Hoiley F3B World Champ files Ace Silver Seven kit-built transmitter Radio can custom-built needs Kraft Systems Inc W California Ave Vista CA 92083 e Subsidiary Carlisle Corporation
Edition: Model Aviation - 1982/03
Page Numbers: 36, 37
Radio Control SOARING Dan Pruss IF COMPETITION does nothing else does breed new ideas some might suitable top-notch competitor some ideas rub off make Sunday afternoons enjoyable us hackers ideas might simple gadget like Chuck Andersons modified cotter pin uses hold wings tightly fuselage seen AMA Nationals might sophisticated wing construction Swiss use Spartakus models Chucks case slot cut plywood root rib wing bent cotter pin normally has rubberbands through fuselage holding two pins together see photo bent section slid wing rib slots rubber tension holds wings fuselage wing section see photos slice taken Spartakus wing lines drawn through leading edge spars trailing edge added picture help illustrate wing separated before top half glued bottom half method making molds such wing will offered later article wing construction itself labor love molds wings state art two-piece wing four molds two top halves two bottom halves wing section seen picture finished epoxy coat over glass layer millimeter balsa another layer glass forms top skin through vacuum process bottom skin same glass balsa glass spars Styrofoam add little support structure aiding mostly keeping two wing surfaces apart handling Worth trouble Sailplane Probably club has 23 birds theyre exactly alike weight weight distil bution strength alignment can realize advantages Plus parts 23 models interchangeable two photos Andy Keils plane show clever way uncover otherwise hidden work Instead regular canopy-type hatch usually leaves least couple corners inaccessible Keil cuts nose off close leading edge wing -in plywood profile nose section removable made extend fuselage complete accessibility radio compartment possible plywood member also adds strength area sometimes weakened canopy cutout 36 Model Aviation ChuckAnderson came upwiththis neatwlngattach system Rubbeebend hold cotter pin either side fuse wings piug Smail hoies wing rods See text S. en. , isminatlons glass epoxy balsa vacuun-urmed Andy Ksii South Africa deveioped spiffy system getting radio gear nose cap sbove siides off reveai iii Ply plate right mounts servos receiver battery Pin receiver switch Terry Edmonds shows off slick Cailisto Coupled ailerons rudder elevator spoilers Plans available see text John Brown Piacentia CA AMA Nats Champion faithful Icarus Larry Jolly design balsa no fancy stuff just good flying ring ribbon airborne packs switch switch pin pulled long ribbon added safety feature narrow gauge model see Callisto design Terry Edmonds Iowa City IA Construction standard required building supplies Now know narrow fuselage cant have three servos across does have three line Aft battery pack made up four 450 mAh cells mounted -in line standing end receiver Behind servos elevator spoilers aileron/rudder Ninety-degree bellcranks mounted first wing rib bay leg bellcrank extending fuselage allows rudder servo pick up aileron linkage simple clever fashion Ballast mounted wings Designed primarily F3 B contests Terry has also flying ship regular thermal events youre interested plans available Terry Edmonds 1 Lakeview Knoll RR 6 Iowa City IA 52240 Winners Sophisticated models use spaceage materials require hundreds hours produce dont necessarily make winner Take case three summertime champions 1981 come balsa better school building World Champion Dwight Holley Gobbler left few glass class group wincing back Sacramento Ken Bates won LSF Tournament slightly modified Sagitta kit John Brown won AMA Nationals beat comers Two-Meter ship Icarus another kit Browns ship couldnt much simpler controls usually give tailrigger fits simply made up Du-Bro ball-links use ruddervators ball links right line pushrods exit through very rear fuselage Simple neat Over years weve seen development ideas today tend take granted Simple things like spar construction strong enough withstand runaway winch tow hooks two-piece wings simple dozen years back speaking winches remembers launches before turnaround came winches placed upwind end launch site flier downwind end signaled tow Come think thats spars started become stronger Dan Pruss Rt 2 Box 49D Plainfield IL 60544 Polyethylene Fuel Tanks Safe Gasoline Oil Glow F finest blow-molded seamless polyethylene fuel tanks designed hold popular fuels safely conveniently easily removable pick-up tube weighted assure continuous fuel flow during aerobatic maneuvers Regular slimline styles 9 popular sizes ranging 4 16 oz capacities virtually modeling applications March 1982 37 n Bates took 1981 LSF Tournament slightly modified Airtronics Sagitta Entire wing sheeted balsa including spoilers Dwight Hoiley F3B World Champ files Ace Silver Seven kit-built transmitter Radio can custom-built needs Kraft Systems Inc W California Ave Vista CA 92083 e Subsidiary Carlisle Corporation