Free Flight Indoor Bud Tenny TRIBUTE recently joint meeting AMA Executive Council Chairmen Contest Boards meeting has fully reported else want remind AMA members what fine group leaders AMA has Contest Board meetings ran 800 am 1030 pm two meal breaks two other short breaks Executive Council meet ing continued until far past midnight kind concentrated effort dif ficult maintain produces excel lent results cant imagine other organization business being able assemble kind talent pay let alone free Whats wrong Indoor Maybe noth ing However hear lot comments about little thingsthings can affect some model classes problem dont have reliable source good rubber Several people have working its tough nut crack major problem rubber strip isnt produced energy source no manufacturer really knows make what need fact top fliers agree just what good rubber has anyone has about $2 million spare could afford research experimentation build good rubber total market years wouldnt amortize research costs What about condenser paper number people have reported condenser paper isnt being made Although suppliers still have can imagine Paper Stick Easy B models would soon fade scene lack covering material meets existing rules Some filers begin ning talk about rules modification permit other types covering no has submitted proposal accomplish Actually condenser paper sup posed easier use other coverings prone react humidity superb craftsmen able build models dont warp new plastic films have dis placed condenser paper electronic manufacturing have superior characteris tics model covering problem handling very light plastic appears difficult working traditional covering materials has suggested microfilm-handling tech niques will work very well seems have golden opportunity microfilm techniques covering frames etc will work newcomers can learn coyering techniques microfilm worrying about clumsy holes Whats Cabin model back Bob Meuser reported Bob Randolphs latest Cabin model new record time set Some fliers no Cabin fliers Ive heard about have mumbled bit unorthodox design no challenged model officially So whats beef used Indoor Cabin models built-up fuselages simi lar concept present Manhattan Cabin models what Ed Whitten trying say Cabin models evolved motor stick enclosed motor built-up cross section see photo got easier build fly flight times went up However door purist would say departure didnt meet intent rules Some people saying amount Indoor Cabin activity past 10 years low event should dropped Others suggesting Manhattan Cabin replace Indoor Cabin Nats What think High-tech materials Indoor modelers brink possible jump record times due increasing availability new exciting materials Although car bon fibers almost old hat fliers Indoor modelers have used Boron fibers coming indeed modelers already using Continued page 169 Al Backetrom Frisco TX loves make flying-wing models L Theyre flying plank genre fly weill Heres AMA Cabin model Should Manhattan Cabin replace etyle Nate Bud would like hear opinion John Triolo buiit nifty pair Bostonian Cabin models some time ago Low-wlnger has swept wings Covering condenser paper ntamkar 1984 71 pending upon type rubber used prop run typically 20 25 seconds though model gets quite high will come down fast unless ther mal contest flying practice picking good air well trimming model Good Flying FF IndoorlTenny Continued page 71 new high-tech material requires some special handling and/or building techniques race develop reliable low-weight building methods us ing materials Help using carbon boron fibers new plastic films other materials improve models tell us about word warning Howard Haupt editor El Torbellino newsletter San Diego Orbiteers very recent issue printed following warning Boron glass-like material can very brittle Being brittle can shatter cause small sharp slivers slivers can penetrate skin ease will work themselves back surface Once under skin slivers least minor irritant worst danger heart lungs work way bloodstream Modern boron fiber pretty well behaved will break cleanly bent sharply pliers must take care dispose scrap ends broken off Little pieces boron cannot left laying about worktable floor Two ways discussed ensure proper disposal boron scrap ends have small bottle table repository boron scrap work material As break end off pliers continue grip pliers drop bottle Two place masking tape end boron trimming After breaking off end tape attached dispose wastepaper basket Bostonian year Manhattan Cabin became official event rush set records four AMA ceiling categories three age classes uni fies activity standard rules Now Ed Whittens New York door Times get set official rules Bostonian Cabin 1 Maximum projected wingspans 16 maximum wing chord 3 2 Maximum propellers diameter 6 3 Power limited rubber motors 4 All surfaces double-covered 5 Minimum weight rubber motors 7 grams 6 Maximum overall length 14 excluding propellers 7 Fuselage must contain exceed theoretical box measuring 1 x 2A x 3 longerons must both supNow Kit Form Save easy assemble 4 channel kit expandable 71 OnlyS 7995 service parts available past manufactured EK Logitrol radios including Logitrol manufactured Cirrus Tower Hobby Lobby radios Free servo reversing Hobby Lobby radios included service work FCS-4 Four Channel Radio Wider body ends aching shoulder muscles Angled easier monitering battery charge Designed easily accept new frequencies Servo reversing simply reversing plug Adjustable stick tension Inexpensive replacement servos V 4UOmAH battery pack I600mAH ft 1200mAH extral Expandable port motor form exceed box requirement No motor sticks allowed Fuselage must have forward windshield window side least square inch area 8 Landing Gear must fixed least two wheels Y4-in minimum diam eter rigid enough successfully sup port model hand-glided landing 9 Rise Off Ground least two wheels required takeoffs official flights 10 Charisma FactorThe judge rates model model appeals him based construction neatness scalelike details unique features design etc 100 rating up 130 used Two models may given same rating models rated against other against 100 130 scale 11 An unlimited number flights allowed total full seconds three best flights multiplied Charisma Factor determining models score 12 More model may entered prize entrant will awarded Ed Whitten has said Bostonian Cabin models Flying Scale models . except no full-sized mancarrying version Two photos models built some time back John Triolo shown perhaps can see what Ed means might notice design feature two modelsJohn clever ly arranged designs accommodate full-length motors best rubber usage Bedford reg ulars sessions Bedford Boys Ranch Bedford TX Al Backstrom Frisco TX Al flies some Indoor Scale flying wing models really fun $11995 wIth large lInear serve $12995 maK rotary servos Send 8Sf let cemplete catuleg 509 4S72 122 watch model launching photo flying-plank style use nothing except reflex airfoil stability model doesnt seem lack stability can hit ceiling recover very little loss alti tudefar better Scale models better some serious Indoor models Bud Tenny PO Box 545 Richardson TX 75080 FF DurationlMeuser Continued page 73 inner tip wing panels angles B D angles need know setting ribs adjacent dihe dral breaks sanding proper angle dimensions m h amounts prop up end panel gluing end another scenarios involving considerable trial-and-error modelers arrive final dimensions wings Ferrers Second Notion seems pretty good what model designer would really like 1 establish semi-span tip angle 2 establish ratio c d 3 invoke Ferrers First Notion about ellipse business other numbers interest should fall out onto floor ratio c d Well suppose decide rib spacing uniform throughout wing previous experience perhaps simply wild guess decide tip panel should have six rib spaces inner panel should have 10 c/d John calls R simply 10/6 Continued page 172 September 1984 169 Full Command Systems 908 E Rosewood Spokane WA 99208
Edition: Model Aviation - 1984/09
Page Numbers: 71, 169
Free Flight Indoor Bud Tenny TRIBUTE recently joint meeting AMA Executive Council Chairmen Contest Boards meeting has fully reported else want remind AMA members what fine group leaders AMA has Contest Board meetings ran 800 am 1030 pm two meal breaks two other short breaks Executive Council meet ing continued until far past midnight kind concentrated effort dif ficult maintain produces excel lent results cant imagine other organization business being able assemble kind talent pay let alone free Whats wrong Indoor Maybe noth ing However hear lot comments about little thingsthings can affect some model classes problem dont have reliable source good rubber Several people have working its tough nut crack major problem rubber strip isnt produced energy source no manufacturer really knows make what need fact top fliers agree just what good rubber has anyone has about $2 million spare could afford research experimentation build good rubber total market years wouldnt amortize research costs What about condenser paper number people have reported condenser paper isnt being made Although suppliers still have can imagine Paper Stick Easy B models would soon fade scene lack covering material meets existing rules Some filers begin ning talk about rules modification permit other types covering no has submitted proposal accomplish Actually condenser paper sup posed easier use other coverings prone react humidity superb craftsmen able build models dont warp new plastic films have dis placed condenser paper electronic manufacturing have superior characteris tics model covering problem handling very light plastic appears difficult working traditional covering materials has suggested microfilm-handling tech niques will work very well seems have golden opportunity microfilm techniques covering frames etc will work newcomers can learn coyering techniques microfilm worrying about clumsy holes Whats Cabin model back Bob Meuser reported Bob Randolphs latest Cabin model new record time set Some fliers no Cabin fliers Ive heard about have mumbled bit unorthodox design no challenged model officially So whats beef used Indoor Cabin models built-up fuselages simi lar concept present Manhattan Cabin models what Ed Whitten trying say Cabin models evolved motor stick enclosed motor built-up cross section see photo got easier build fly flight times went up However door purist would say departure didnt meet intent rules Some people saying amount Indoor Cabin activity past 10 years low event should dropped Others suggesting Manhattan Cabin replace Indoor Cabin Nats What think High-tech materials Indoor modelers brink possible jump record times due increasing availability new exciting materials Although car bon fibers almost old hat fliers Indoor modelers have used Boron fibers coming indeed modelers already using Continued page 169 Al Backetrom Frisco TX loves make flying-wing models L Theyre flying plank genre fly weill Heres AMA Cabin model Should Manhattan Cabin replace etyle Nate Bud would like hear opinion John Triolo buiit nifty pair Bostonian Cabin models some time ago Low-wlnger has swept wings Covering condenser paper ntamkar 1984 71 pending upon type rubber used prop run typically 20 25 seconds though model gets quite high will come down fast unless ther mal contest flying practice picking good air well trimming model Good Flying FF IndoorlTenny Continued page 71 new high-tech material requires some special handling and/or building techniques race develop reliable low-weight building methods us ing materials Help using carbon boron fibers new plastic films other materials improve models tell us about word warning Howard Haupt editor El Torbellino newsletter San Diego Orbiteers very recent issue printed following warning Boron glass-like material can very brittle Being brittle can shatter cause small sharp slivers slivers can penetrate skin ease will work themselves back surface Once under skin slivers least minor irritant worst danger heart lungs work way bloodstream Modern boron fiber pretty well behaved will break cleanly bent sharply pliers must take care dispose scrap ends broken off Little pieces boron cannot left laying about worktable floor Two ways discussed ensure proper disposal boron scrap ends have small bottle table repository boron scrap work material As break end off pliers continue grip pliers drop bottle Two place masking tape end boron trimming After breaking off end tape attached dispose wastepaper basket Bostonian year Manhattan Cabin became official event rush set records four AMA ceiling categories three age classes uni fies activity standard rules Now Ed Whittens New York door Times get set official rules Bostonian Cabin 1 Maximum projected wingspans 16 maximum wing chord 3 2 Maximum propellers diameter 6 3 Power limited rubber motors 4 All surfaces double-covered 5 Minimum weight rubber motors 7 grams 6 Maximum overall length 14 excluding propellers 7 Fuselage must contain exceed theoretical box measuring 1 x 2A x 3 longerons must both supNow Kit Form Save easy assemble 4 channel kit expandable 71 OnlyS 7995 service parts available past manufactured EK Logitrol radios including Logitrol manufactured Cirrus Tower Hobby Lobby radios Free servo reversing Hobby Lobby radios included service work FCS-4 Four Channel Radio Wider body ends aching shoulder muscles Angled easier monitering battery charge Designed easily accept new frequencies Servo reversing simply reversing plug Adjustable stick tension Inexpensive replacement servos V 4UOmAH battery pack I600mAH ft 1200mAH extral Expandable port motor form exceed box requirement No motor sticks allowed Fuselage must have forward windshield window side least square inch area 8 Landing Gear must fixed least two wheels Y4-in minimum diam eter rigid enough successfully sup port model hand-glided landing 9 Rise Off Ground least two wheels required takeoffs official flights 10 Charisma FactorThe judge rates model model appeals him based construction neatness scalelike details unique features design etc 100 rating up 130 used Two models may given same rating models rated against other against 100 130 scale 11 An unlimited number flights allowed total full seconds three best flights multiplied Charisma Factor determining models score 12 More model may entered prize entrant will awarded Ed Whitten has said Bostonian Cabin models Flying Scale models . except no full-sized mancarrying version Two photos models built some time back John Triolo shown perhaps can see what Ed means might notice design feature two modelsJohn clever ly arranged designs accommodate full-length motors best rubber usage Bedford reg ulars sessions Bedford Boys Ranch Bedford TX Al Backstrom Frisco TX Al flies some Indoor Scale flying wing models really fun $11995 wIth large lInear serve $12995 maK rotary servos Send 8Sf let cemplete catuleg 509 4S72 122 watch model launching photo flying-plank style use nothing except reflex airfoil stability model doesnt seem lack stability can hit ceiling recover very little loss alti tudefar better Scale models better some serious Indoor models Bud Tenny PO Box 545 Richardson TX 75080 FF DurationlMeuser Continued page 73 inner tip wing panels angles B D angles need know setting ribs adjacent dihe dral breaks sanding proper angle dimensions m h amounts prop up end panel gluing end another scenarios involving considerable trial-and-error modelers arrive final dimensions wings Ferrers Second Notion seems pretty good what model designer would really like 1 establish semi-span tip angle 2 establish ratio c d 3 invoke Ferrers First Notion about ellipse business other numbers interest should fall out onto floor ratio c d Well suppose decide rib spacing uniform throughout wing previous experience perhaps simply wild guess decide tip panel should have six rib spaces inner panel should have 10 c/d John calls R simply 10/6 Continued page 172 September 1984 169 Full Command Systems 908 E Rosewood Spokane WA 99208