WHY BUILD Save Time & Money Just BuY Fly R/C Capitol offers worlds finest radio controlled custom built-up aircraft have purchased sold thousands built-up RIC aircraft ignition engines have paid top prices delivered lowest possible market costs dont have time build know build dont want build get air quick ready builts want fly just sell some merchandise have answers finest radio controlled aircraft world has offer way go Super Closeouts Sale Top Quality RIC FUTABA FP-T2GS 2 Ch TX Retail Price $3995 Sale Price $2000 FUTABA FP-T41 4 Ch TX DRY Retail Price $6995 Sale Price $3500 FUTABA 4-1 Set Sale Price S12424**# Please send $100 self-addressed stamped envelope complete list have prices other people cannot compete Just buy fly HOBBY CAPITOL RIC EST 1951 46 N OAK ST VENTURA CA 93001 805 643-7616642-8465 Disrributors Finest Qualiry Builr-Up R/C Aircraft Custom Built Ready-To-Fly Radio Controlled Model Airplanes ietters t6e d1tor letters will carefully considered general interest used Send ModelAviation 815 15th St NW Washington DC 20005 City Springfield Returns Home Visit Late June 1982 famous replica Gee Bee City Springfield built California Bill Turner Ed Marquardt returned Springfield kick off drive raise funds purchase aircraft can per manently displayed Springfield Mu seum Science Gee Bee Memorial Assn headed modeler Don Foster Springfield Plaza Merchants Assn arranged transporta tion craft Springfield affair museum weekend shopping plaza Wednesday evening museum hosted wine-and-cheese party number invited guests view replica among invited made 600-mile-plus round trip Springfield modeling buddy Joe Gallagher evening enjoyable got see Gee Bee friends Joe visited museum two years ago enjoyed seeing display again also got meet several members Granville family Among attendance Hiram Jones wife Gladys Hi original Gee Bee shop mechanics did welding original City Spring field Gladys youngest Granville girls now live retirement family homesite Madison NH Bobby Norma Granville son daughter Zantford Grannie Granville June Dakin daughter Tom Granville Charlotte Granville widow Ed Granville Laurie Granville widow Mark Granville Robert Hall Jr son Bob Hall designed City Springfield Grannie also atten dance Model Z repilca display Quadrangle museum received lot attention during evening next day craft paraded museum area Springfield Shopping Plaza remained display over weekend Plaza Merchants Assn celebrated aircrafts return big promotional weekend aircraft now storage Springfield area will remain until money raised its purchase Model builders have always interested Gee Bees years afraid build because stories written about real ones stories have given Gee Bees false bad reputation have few brave souls have built models Gee Bees over years built first Gee Bee 1976 since have built total eight different Gee Bee aircraftall have won trophies RC Scale competitions flying buddy Joe Gal lagher has built four different Gee Bees too has won trophies arrive Scale meet often hear remark such comes Gran vile brothers Building flying models Gee Bees has very rewarding experience Construction articles Gee Bee model designs have appeared various maga zines have received large amount mail over countryand ail over worldfrom Gee Bee fans has shown indeed lot Gee Bee lovers out have enjoyed articles Gee Bees am making plea help bring City Springfield home per manently Springfield am asking send contribution fund whatever amount wishno contribution too small contribute $5 beautiful print George Amendolas painting Model Z suitable framing will sent 14 x 17-in print will make beauti ful decoration Youx contribution should sent fol lowing address Gee Bee Memorial Fund Multibank P 0 Box 1489 Springfield MA 01101 Henry Haffke Vineland NJ top picture shows part crowd ad miring star evening during wine-and-cheese party arranged Spring field Museum Science kick off Gee Bee Memorial Fund Drive other picture shows L-R Glen Ives museum curator Don Foster head Gee Bee Memorial Assn beautiful Gee Bee City Springfield replica subject drive funds way Model Aviation will printing Haffke s design Quarter Scale Gee Bee R-J a90 before long Continued page 64 10 Model Aviation Leopard Moth Super Scale Plans $2495 PP buy seii oid time ignition engines Box up what have send us honest ap praisai could worth new proportional set have engines can aiso start collection -9 BOOSTER FUEL MIX 3oz Oil 3oz E NITIIOETHANE B Add gasoline ke gallon S Put aBEET E yourA tank Tigers 14 95 Pr LIGHT STRONGTIRES 4 5 6 ire Wt 9 oz WILLRT l2Olbseaeh NYLONMETAL BEARING 4199552395 6 2495 7 2995 Complete adjustable exhaust mount $ 26500 Openers/Wheeley Continued page 8 newsletter has international audi ence needs new subscribers list has yet recovered gap publishing occurred 1981 newsletter will achieve regular monthly schedule late 1982 minimum eight pages maximum dependent subscriber support contributions Picture quality excellent Advertisements planned limited materials interest Control Line smaller suppliers Computer-filed supplier lists membership lists like wili available Fuil-sized plans will available models published Copies technical reports etc planned future availabili ty selected hard-to-get specialty supplies like Frankly experiment see Control Line really dead way some people say dont think Write sup port coalition concept refuse lieve Control Line gone Subscription Gazette $10 per year Send Laird Jackson 2322 Wilson Ave Bristol PA 19007 Sample copy send 37 cents stamps saddened bretheren model magazine field Tom Hutchinson died cancer August 16 after lengthy bout disease Born Louisiana 1940 survived wife Rosemary sons Marc 7 Michael 5 Tom author Free Flight column Model Builder magazine until near end taught physics Hilisboro High School Oregon has organizer model clubs designer outstanding IT mod els Dragmaster A-2 Towline among others producer FF model kits RM Models presence will missed Wish thought Clever people modelers Have ever considered using inexpensive household sponge wrapped sandpaper sanding block Bob Balley does finds sponge block conforms nicely con tour Wet sponge becomes ideal wet sanding wet-or-dry sandpaper course flushing sanding area Big sponges make ideal backing contour-sanding sheeted wings Another handy use friendly sponge time small pores such foam rubber used cushions give feath ered edge paint certain camouflage schemes Just dab sponge sprayed-like edge course dont have spray gun Thanks Hawks Squawk newsletter Boeing Hawks RC Flyers Seattle WA tips Letters Editor Continued page 10 Address Problem Several months back July 1982 issue printed letter several pictures Scott Blynder interested con tact ing others like himself have interest WWI-type RCplanes knew pretty soon problem Scotti address printed began receiving inquiries several written 64 Model Aviation K AWA S AK 315 TA-SI MX l/4 AXLE with support wheel Pant RVO DOUBLER ASSOCIATES INC 21658 CLOUD WAY HAYWARD CA 94545 2 Servos safer coupled Think Fail Safe 69S letters returned undeliverable folks able provide correct ad dress anyone else may have problem didnt let us know full address follows M Scott Blynder Sabal Chase-Glenshire 11024 S W 112th St Miami FL 331 76 Props Work answer question posed earlier issue re what mechanism work cause propeller propel did some digging old aero texts found momentum theory good first approximation method no way associated rotating bodies merely describes change ve locity air using Force Mass x Acceler ation Law Daniel Dommasch Airplane Aerodynamics cites Blade Element Theory reasonable 90% accuracy assesment propeller thrust Consider small piece cut out prop Fig 1 avoid calculus call its size b r T b typical blade element viewed end-on looks like Fig 2 lane Rotation Using model thrust produced piece blade Thrust /2fiV2brC1 cos in 0 density V2 square velocity ajistream C1 Cd coefficients lift drag airfoil equation merely special case lift equation wing Basically thrust prop proportion al its blade area its coefficients lift drag lift drag coefficients determined both airfoil shape angle attack final analysis prop just wing Its thrust dependent both airfoil angle attack pitch can fly flat blade can improve cleaning up airfoil tip losses blade inefficiencies considered becomes clear prop cant travel forward farther geo metric pitch dictates Someone surely will write shoot down explanation Its best can out using integral calculus hope some value Mark Julicher Dayton OH MAXIMUM Service Charges 4-7channel systems$3250 2channel systems$2650 Parts Shipping Extra 1685 Beckwith Dr Hudson OH 44236 Servo reversing now available iC & iCS 1976-81 transmitters aileron elevator rudder & Shrottlel $3500 Ask Milt Erb 216 655-2278 November 1982 65 Kraft RIC Electronics ij Low Repair Costs t Customers J-5s EXCITING NEW GIANT Tunneihull FULL-SIZE PLANS 1795 Kit ciw fiberglass cowl$12950 Complete kit 2 hp outboard motor$30950 ShippIng charges included US Canada 13 EHUE E Box 82 Belmont Ontario NOL iBO 519-644-0375 FLYING NEAR Al RPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY Safe Flying No Accident
Edition: Model Aviation - 1982/11
Page Numbers: 10, 64, 65
WHY BUILD Save Time & Money Just BuY Fly R/C Capitol offers worlds finest radio controlled custom built-up aircraft have purchased sold thousands built-up RIC aircraft ignition engines have paid top prices delivered lowest possible market costs dont have time build know build dont want build get air quick ready builts want fly just sell some merchandise have answers finest radio controlled aircraft world has offer way go Super Closeouts Sale Top Quality RIC FUTABA FP-T2GS 2 Ch TX Retail Price $3995 Sale Price $2000 FUTABA FP-T41 4 Ch TX DRY Retail Price $6995 Sale Price $3500 FUTABA 4-1 Set Sale Price S12424**# Please send $100 self-addressed stamped envelope complete list have prices other people cannot compete Just buy fly HOBBY CAPITOL RIC EST 1951 46 N OAK ST VENTURA CA 93001 805 643-7616642-8465 Disrributors Finest Qualiry Builr-Up R/C Aircraft Custom Built Ready-To-Fly Radio Controlled Model Airplanes ietters t6e d1tor letters will carefully considered general interest used Send ModelAviation 815 15th St NW Washington DC 20005 City Springfield Returns Home Visit Late June 1982 famous replica Gee Bee City Springfield built California Bill Turner Ed Marquardt returned Springfield kick off drive raise funds purchase aircraft can per manently displayed Springfield Mu seum Science Gee Bee Memorial Assn headed modeler Don Foster Springfield Plaza Merchants Assn arranged transporta tion craft Springfield affair museum weekend shopping plaza Wednesday evening museum hosted wine-and-cheese party number invited guests view replica among invited made 600-mile-plus round trip Springfield modeling buddy Joe Gallagher evening enjoyable got see Gee Bee friends Joe visited museum two years ago enjoyed seeing display again also got meet several members Granville family Among attendance Hiram Jones wife Gladys Hi original Gee Bee shop mechanics did welding original City Spring field Gladys youngest Granville girls now live retirement family homesite Madison NH Bobby Norma Granville son daughter Zantford Grannie Granville June Dakin daughter Tom Granville Charlotte Granville widow Ed Granville Laurie Granville widow Mark Granville Robert Hall Jr son Bob Hall designed City Springfield Grannie also atten dance Model Z repilca display Quadrangle museum received lot attention during evening next day craft paraded museum area Springfield Shopping Plaza remained display over weekend Plaza Merchants Assn celebrated aircrafts return big promotional weekend aircraft now storage Springfield area will remain until money raised its purchase Model builders have always interested Gee Bees years afraid build because stories written about real ones stories have given Gee Bees false bad reputation have few brave souls have built models Gee Bees over years built first Gee Bee 1976 since have built total eight different Gee Bee aircraftall have won trophies RC Scale competitions flying buddy Joe Gal lagher has built four different Gee Bees too has won trophies arrive Scale meet often hear remark such comes Gran vile brothers Building flying models Gee Bees has very rewarding experience Construction articles Gee Bee model designs have appeared various maga zines have received large amount mail over countryand ail over worldfrom Gee Bee fans has shown indeed lot Gee Bee lovers out have enjoyed articles Gee Bees am making plea help bring City Springfield home per manently Springfield am asking send contribution fund whatever amount wishno contribution too small contribute $5 beautiful print George Amendolas painting Model Z suitable framing will sent 14 x 17-in print will make beauti ful decoration Youx contribution should sent fol lowing address Gee Bee Memorial Fund Multibank P 0 Box 1489 Springfield MA 01101 Henry Haffke Vineland NJ top picture shows part crowd ad miring star evening during wine-and-cheese party arranged Spring field Museum Science kick off Gee Bee Memorial Fund Drive other picture shows L-R Glen Ives museum curator Don Foster head Gee Bee Memorial Assn beautiful Gee Bee City Springfield replica subject drive funds way Model Aviation will printing Haffke s design Quarter Scale Gee Bee R-J a90 before long Continued page 64 10 Model Aviation Leopard Moth Super Scale Plans $2495 PP buy seii oid time ignition engines Box up what have send us honest ap praisai could worth new proportional set have engines can aiso start collection -9 BOOSTER FUEL MIX 3oz Oil 3oz E NITIIOETHANE B Add gasoline ke gallon S Put aBEET E yourA tank Tigers 14 95 Pr LIGHT STRONGTIRES 4 5 6 ire Wt 9 oz WILLRT l2Olbseaeh NYLONMETAL BEARING 4199552395 6 2495 7 2995 Complete adjustable exhaust mount $ 26500 Openers/Wheeley Continued page 8 newsletter has international audi ence needs new subscribers list has yet recovered gap publishing occurred 1981 newsletter will achieve regular monthly schedule late 1982 minimum eight pages maximum dependent subscriber support contributions Picture quality excellent Advertisements planned limited materials interest Control Line smaller suppliers Computer-filed supplier lists membership lists like wili available Fuil-sized plans will available models published Copies technical reports etc planned future availabili ty selected hard-to-get specialty supplies like Frankly experiment see Control Line really dead way some people say dont think Write sup port coalition concept refuse lieve Control Line gone Subscription Gazette $10 per year Send Laird Jackson 2322 Wilson Ave Bristol PA 19007 Sample copy send 37 cents stamps saddened bretheren model magazine field Tom Hutchinson died cancer August 16 after lengthy bout disease Born Louisiana 1940 survived wife Rosemary sons Marc 7 Michael 5 Tom author Free Flight column Model Builder magazine until near end taught physics Hilisboro High School Oregon has organizer model clubs designer outstanding IT mod els Dragmaster A-2 Towline among others producer FF model kits RM Models presence will missed Wish thought Clever people modelers Have ever considered using inexpensive household sponge wrapped sandpaper sanding block Bob Balley does finds sponge block conforms nicely con tour Wet sponge becomes ideal wet sanding wet-or-dry sandpaper course flushing sanding area Big sponges make ideal backing contour-sanding sheeted wings Another handy use friendly sponge time small pores such foam rubber used cushions give feath ered edge paint certain camouflage schemes Just dab sponge sprayed-like edge course dont have spray gun Thanks Hawks Squawk newsletter Boeing Hawks RC Flyers Seattle WA tips Letters Editor Continued page 10 Address Problem Several months back July 1982 issue printed letter several pictures Scott Blynder interested con tact ing others like himself have interest WWI-type RCplanes knew pretty soon problem Scotti address printed began receiving inquiries several written 64 Model Aviation K AWA S AK 315 TA-SI MX l/4 AXLE with support wheel Pant RVO DOUBLER ASSOCIATES INC 21658 CLOUD WAY HAYWARD CA 94545 2 Servos safer coupled Think Fail Safe 69S letters returned undeliverable folks able provide correct ad dress anyone else may have problem didnt let us know full address follows M Scott Blynder Sabal Chase-Glenshire 11024 S W 112th St Miami FL 331 76 Props Work answer question posed earlier issue re what mechanism work cause propeller propel did some digging old aero texts found momentum theory good first approximation method no way associated rotating bodies merely describes change ve locity air using Force Mass x Acceler ation Law Daniel Dommasch Airplane Aerodynamics cites Blade Element Theory reasonable 90% accuracy assesment propeller thrust Consider small piece cut out prop Fig 1 avoid calculus call its size b r T b typical blade element viewed end-on looks like Fig 2 lane Rotation Using model thrust produced piece blade Thrust /2fiV2brC1 cos in 0 density V2 square velocity ajistream C1 Cd coefficients lift drag airfoil equation merely special case lift equation wing Basically thrust prop proportion al its blade area its coefficients lift drag lift drag coefficients determined both airfoil shape angle attack final analysis prop just wing Its thrust dependent both airfoil angle attack pitch can fly flat blade can improve cleaning up airfoil tip losses blade inefficiencies considered becomes clear prop cant travel forward farther geo metric pitch dictates Someone surely will write shoot down explanation Its best can out using integral calculus hope some value Mark Julicher Dayton OH MAXIMUM Service Charges 4-7channel systems$3250 2channel systems$2650 Parts Shipping Extra 1685 Beckwith Dr Hudson OH 44236 Servo reversing now available iC & iCS 1976-81 transmitters aileron elevator rudder & Shrottlel $3500 Ask Milt Erb 216 655-2278 November 1982 65 Kraft RIC Electronics ij Low Repair Costs t Customers J-5s EXCITING NEW GIANT Tunneihull FULL-SIZE PLANS 1795 Kit ciw fiberglass cowl$12950 Complete kit 2 hp outboard motor$30950 ShippIng charges included US Canada 13 EHUE E Box 82 Belmont Ontario NOL iBO 519-644-0375 FLYING NEAR Al RPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY Safe Flying No Accident
Edition: Model Aviation - 1982/11
Page Numbers: 10, 64, 65
WHY BUILD Save Time & Money Just BuY Fly R/C Capitol offers worlds finest radio controlled custom built-up aircraft have purchased sold thousands built-up RIC aircraft ignition engines have paid top prices delivered lowest possible market costs dont have time build know build dont want build get air quick ready builts want fly just sell some merchandise have answers finest radio controlled aircraft world has offer way go Super Closeouts Sale Top Quality RIC FUTABA FP-T2GS 2 Ch TX Retail Price $3995 Sale Price $2000 FUTABA FP-T41 4 Ch TX DRY Retail Price $6995 Sale Price $3500 FUTABA 4-1 Set Sale Price S12424**# Please send $100 self-addressed stamped envelope complete list have prices other people cannot compete Just buy fly HOBBY CAPITOL RIC EST 1951 46 N OAK ST VENTURA CA 93001 805 643-7616642-8465 Disrributors Finest Qualiry Builr-Up R/C Aircraft Custom Built Ready-To-Fly Radio Controlled Model Airplanes ietters t6e d1tor letters will carefully considered general interest used Send ModelAviation 815 15th St NW Washington DC 20005 City Springfield Returns Home Visit Late June 1982 famous replica Gee Bee City Springfield built California Bill Turner Ed Marquardt returned Springfield kick off drive raise funds purchase aircraft can per manently displayed Springfield Mu seum Science Gee Bee Memorial Assn headed modeler Don Foster Springfield Plaza Merchants Assn arranged transporta tion craft Springfield affair museum weekend shopping plaza Wednesday evening museum hosted wine-and-cheese party number invited guests view replica among invited made 600-mile-plus round trip Springfield modeling buddy Joe Gallagher evening enjoyable got see Gee Bee friends Joe visited museum two years ago enjoyed seeing display again also got meet several members Granville family Among attendance Hiram Jones wife Gladys Hi original Gee Bee shop mechanics did welding original City Spring field Gladys youngest Granville girls now live retirement family homesite Madison NH Bobby Norma Granville son daughter Zantford Grannie Granville June Dakin daughter Tom Granville Charlotte Granville widow Ed Granville Laurie Granville widow Mark Granville Robert Hall Jr son Bob Hall designed City Springfield Grannie also atten dance Model Z repilca display Quadrangle museum received lot attention during evening next day craft paraded museum area Springfield Shopping Plaza remained display over weekend Plaza Merchants Assn celebrated aircrafts return big promotional weekend aircraft now storage Springfield area will remain until money raised its purchase Model builders have always interested Gee Bees years afraid build because stories written about real ones stories have given Gee Bees false bad reputation have few brave souls have built models Gee Bees over years built first Gee Bee 1976 since have built total eight different Gee Bee aircraftall have won trophies RC Scale competitions flying buddy Joe Gal lagher has built four different Gee Bees too has won trophies arrive Scale meet often hear remark such comes Gran vile brothers Building flying models Gee Bees has very rewarding experience Construction articles Gee Bee model designs have appeared various maga zines have received large amount mail over countryand ail over worldfrom Gee Bee fans has shown indeed lot Gee Bee lovers out have enjoyed articles Gee Bees am making plea help bring City Springfield home per manently Springfield am asking send contribution fund whatever amount wishno contribution too small contribute $5 beautiful print George Amendolas painting Model Z suitable framing will sent 14 x 17-in print will make beauti ful decoration Youx contribution should sent fol lowing address Gee Bee Memorial Fund Multibank P 0 Box 1489 Springfield MA 01101 Henry Haffke Vineland NJ top picture shows part crowd ad miring star evening during wine-and-cheese party arranged Spring field Museum Science kick off Gee Bee Memorial Fund Drive other picture shows L-R Glen Ives museum curator Don Foster head Gee Bee Memorial Assn beautiful Gee Bee City Springfield replica subject drive funds way Model Aviation will printing Haffke s design Quarter Scale Gee Bee R-J a90 before long Continued page 64 10 Model Aviation Leopard Moth Super Scale Plans $2495 PP buy seii oid time ignition engines Box up what have send us honest ap praisai could worth new proportional set have engines can aiso start collection -9 BOOSTER FUEL MIX 3oz Oil 3oz E NITIIOETHANE B Add gasoline ke gallon S Put aBEET E yourA tank Tigers 14 95 Pr LIGHT STRONGTIRES 4 5 6 ire Wt 9 oz WILLRT l2Olbseaeh NYLONMETAL BEARING 4199552395 6 2495 7 2995 Complete adjustable exhaust mount $ 26500 Openers/Wheeley Continued page 8 newsletter has international audi ence needs new subscribers list has yet recovered gap publishing occurred 1981 newsletter will achieve regular monthly schedule late 1982 minimum eight pages maximum dependent subscriber support contributions Picture quality excellent Advertisements planned limited materials interest Control Line smaller suppliers Computer-filed supplier lists membership lists like wili available Fuil-sized plans will available models published Copies technical reports etc planned future availabili ty selected hard-to-get specialty supplies like Frankly experiment see Control Line really dead way some people say dont think Write sup port coalition concept refuse lieve Control Line gone Subscription Gazette $10 per year Send Laird Jackson 2322 Wilson Ave Bristol PA 19007 Sample copy send 37 cents stamps saddened bretheren model magazine field Tom Hutchinson died cancer August 16 after lengthy bout disease Born Louisiana 1940 survived wife Rosemary sons Marc 7 Michael 5 Tom author Free Flight column Model Builder magazine until near end taught physics Hilisboro High School Oregon has organizer model clubs designer outstanding IT mod els Dragmaster A-2 Towline among others producer FF model kits RM Models presence will missed Wish thought Clever people modelers Have ever considered using inexpensive household sponge wrapped sandpaper sanding block Bob Balley does finds sponge block conforms nicely con tour Wet sponge becomes ideal wet sanding wet-or-dry sandpaper course flushing sanding area Big sponges make ideal backing contour-sanding sheeted wings Another handy use friendly sponge time small pores such foam rubber used cushions give feath ered edge paint certain camouflage schemes Just dab sponge sprayed-like edge course dont have spray gun Thanks Hawks Squawk newsletter Boeing Hawks RC Flyers Seattle WA tips Letters Editor Continued page 10 Address Problem Several months back July 1982 issue printed letter several pictures Scott Blynder interested con tact ing others like himself have interest WWI-type RCplanes knew pretty soon problem Scotti address printed began receiving inquiries several written 64 Model Aviation K AWA S AK 315 TA-SI MX l/4 AXLE with support wheel Pant RVO DOUBLER ASSOCIATES INC 21658 CLOUD WAY HAYWARD CA 94545 2 Servos safer coupled Think Fail Safe 69S letters returned undeliverable folks able provide correct ad dress anyone else may have problem didnt let us know full address follows M Scott Blynder Sabal Chase-Glenshire 11024 S W 112th St Miami FL 331 76 Props Work answer question posed earlier issue re what mechanism work cause propeller propel did some digging old aero texts found momentum theory good first approximation method no way associated rotating bodies merely describes change ve locity air using Force Mass x Acceler ation Law Daniel Dommasch Airplane Aerodynamics cites Blade Element Theory reasonable 90% accuracy assesment propeller thrust Consider small piece cut out prop Fig 1 avoid calculus call its size b r T b typical blade element viewed end-on looks like Fig 2 lane Rotation Using model thrust produced piece blade Thrust /2fiV2brC1 cos in 0 density V2 square velocity ajistream C1 Cd coefficients lift drag airfoil equation merely special case lift equation wing Basically thrust prop proportion al its blade area its coefficients lift drag lift drag coefficients determined both airfoil shape angle attack final analysis prop just wing Its thrust dependent both airfoil angle attack pitch can fly flat blade can improve cleaning up airfoil tip losses blade inefficiencies considered becomes clear prop cant travel forward farther geo metric pitch dictates Someone surely will write shoot down explanation Its best can out using integral calculus hope some value Mark Julicher Dayton OH MAXIMUM Service Charges 4-7channel systems$3250 2channel systems$2650 Parts Shipping Extra 1685 Beckwith Dr Hudson OH 44236 Servo reversing now available iC & iCS 1976-81 transmitters aileron elevator rudder & Shrottlel $3500 Ask Milt Erb 216 655-2278 November 1982 65 Kraft RIC Electronics ij Low Repair Costs t Customers J-5s EXCITING NEW GIANT Tunneihull FULL-SIZE PLANS 1795 Kit ciw fiberglass cowl$12950 Complete kit 2 hp outboard motor$30950 ShippIng charges included US Canada 13 EHUE E Box 82 Belmont Ontario NOL iBO 519-644-0375 FLYING NEAR Al RPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY Safe Flying No Accident