Radio Control Sport Aerobatics RonVan Putte AS IVE mentioned several times before AMA sends RC-orien ted club newsletters received AMA headquarters Most news letters have initials cover four five Headquarters staff members dicating have read newsletter Model Aviations publisher Carl Wheel eys initials AMAs Executive Director John Worths initials seldom missing Whether know club sends newsletter AMA gets high level attention another example importance club newsletters club AMA Have ever considered club newsletter editor probably hardest working club member After serving newsletter editor four years Ohio another two years Florida know what takes put out newsletter Yet editor probably least ap preciated volunteer club Generally editor ever hears about news letter particular issue never ar rived late Seldom club members contribute articles news tidbits unless editor begs threatens cajoles Yet great credit editors seem keep putting out news have club newsletter should recognize important club Just imagine what would like editor quit club newsletter stopped coming next time read something newsletter really enjoy tell editor Better yet offer help him/her newsletters Ive receiving lately have two recurring subjects safety cold weather activities importance safe operation hardly needs justified us should recognize responsibil ity prevent damage injury result actions RC flier particularly vulnerable accidents because nature airplanes fly freedom airplane causes op portunities accidents Most clubs have flying site rules promote safe operation However job enforcing rules generally falls individual rather group because no wants to tell another flier what to Yet whole club can affected unsafe activities single flier think time make enforcement safety rules job everyone Continued page 96 March 1979 25 Under watchful eye timing official 1978 Nats James Vanderback gets ready fire up Its Trion Alan Duplar design Rossi engine pipe Steve Stricker makes sure carb setting right before starting Enya BOXF Vertigo II Skyglass kit last Nats won second Senior Expert fifth combined age basis Oh haunting moments about start official flight Larry Perry Phoenix 6 modified thinner shorter wing Webra Speed SEND COUPON AND 250 FOR YOUR CATALOG TODAY weight proportional square velocity weight 2 2 times pattern ship velocity 2/3 pattern ship monsters will less damagingor perhaps equal under worst condition Horsepower limitations 2 hp-3 hp will limit speeds weights sizes F F Van Keurin Jr Greenville MS Oh Beautiful Bird am writing reference picture page 38 November issue Model Aviation lower lefthand corner Tom Stark Bird model am RC flier senior citizen Years back flew Bird its five cylinder Kinner Would please put touch Tom Stark would love get set plans model model back thirties greatest Thank help can give matter am enclosing self-addressed stamped envelope reply Arthur F Cervenka Oakdale NY have put Mr Cervenka touch Tom Stark Bird incidentally regarded have truly excellent airplane RC Technique/Myers continued page 17 article will paid itif send form publishable article send letter editor uses get just glory Finally could send informa tion get enough build item Name Address City StateZip Send MIDWEST PRODUCTS CO h4Hoba Indiana 46342 71400 South Indiana SI MA column will credit source magazine will pay $5 $15 contribution Its up you word Academy have meaning have share knowledge Thats another month Got get back Technicians course Keep writing George Myers 70 Froehlich Farm Rd Hicksville NY 11801 RC Aerobatics/Van Putte continued page 25 accident can have humorous side Cedar Rapids Skyhawks Log book edited Richard Hayslip con tains periodic articles written Ed Coc ciola entitled Notes Novices entire article November issue decided month guy will stick hand 14 prop being turned 60 engine let take five gashes half fingernail dont need giving advice nobody parts country clubs involved activities other flying since its too cold fly Before get irate letters Alaska Michigan North Dakota other states people fly year-round want make clear also RC fliers state Florida dont fly couple months during winter because its too cold know guys very well shave face morning cold weather activities never quite enjoyable flying warm sunshine can make winter bearable popular club cold weather activities conducting monthly indoor contests airplanes can built variety rules flown available large areas enjoyable indoor contests ever competed held 15 X 30 foot room nine-foot ceiling school gymnasium available better Some fellow club members sure surprise unexpected talent build ing flying indoor models An event might like tackle sponsorship Delta Dart program Local scouting other youth organ iza tions usually delighted have club sponsor such activity Besides theres lot satisfaction derived helping kids make first flying models Write AMA information about get involved have airplanes engines radio equipment assorted modeling accessories dont use sponsor club auction Almost modelers have something theyd like have taken off hands some can use get few bucks back selling something dont use better protect sellers some valuable items club auctions allow designation minimum acceptable bid require seller buy item bidding doesnt go high enough Its lot fun might manage buy something youve looking course us use cold weather building projects am no exception winter intend undertake build ing project has thinking stage quite House Balsa Y2A airplanes have always interested because obvious quality kit materials plans instructions ever never seen fly re luctant invest time air planes Two weeks ago oppor tunity fly House Balsa FW 190 experience convinced go ahead project FW 190 has some difficulty getting off ground since doesnt have steer able tailwheel has ailerons instead rudder However once airplane gets flying speed just like pattern air plane both stable responsive definitely beginners airplane course wind does bother airplane size 60-powered airplane wind about 10 mph day flew FW 190 no problems much fun winter project now building board choice House Balsa Beechcraft Bonanza Robart tricycle re tractable landing gear 05 10 FSR tricycle landing gear will eliminate ground handling problems associated tail-draggers bigger engine will help make up extra weight caused retractable landing gear plan use Royal receiver RS-5 servos built up kits 96 Model Aviation Please Print UContiol ARows FOUR NEW RACE READY DESIGNS JOIN THE MIDWEST COMPLETE KIT LINE case arent familiar Royal kit servos well worth checking out can buy four RS-5 kits $1999 previously reported building Royal receiver Its great buy too Kent Walters edits Sun Valley Fliers newsletter Bits-N-Pieces Club treas urer Art Marshall submitted following November issue describes lot us feel about pattern flying Pattern flying special challenge drive win trophies show off friends means mastering re mote control model airplane command toy perform fingers move sticks constantly demanding toy smoother graceful going through pre-de scribed maneuvers contest circuit fun meet nice people will find strongest competitor best helper have seen people beat out trophy loaning plane compet itor competing people competing maneuver trying make perfect also striving build plane will perform flawless maneuvers Everything must straight fit perfectly together days will make does what want will look new chal lenge might try scale plane get frustrated just fly Ugly Stick thats what its about Occasionally friend Dick McGraw gives hard time blow Double Stall Turn likes complain can perform difficult maneuver like Slow Roll have trouble easy like Stall Turn Stall Turn easy maneuver different versions wouldnt present aerobatic pattern classes meets criteria being good man euver namely difficult per form easy judge Stall Turns doomed poor start because flier hasnt taken trouble get wings level before pulling up airplane So give yourself fighting chance ten Stall Turn sure turn around far enough out can get wings level well before entering maneuver pullup should start directly front pilot look like beginning large loop airplane gets vertical attitude back stick should eased off airplane continues vertical climb During pullup vertical climb note airplane tends yaw either direction does should make small trim corrections rudder aileron necessary keep trying maneuver until airplane shows no tendency yaw airplane yaws way time other way next time probably dont have wings level during pullup Have someone observe what doing coach After airplane gets vertical climb reduce power idle apply full rudder airplane has slowed almost stop will have learn direction airplane likes turn best must also learn right time apply rudder put too soon airplane will simply perform U-turn maneuver will probably downgraded failing obtain stall having downward path two wing spans upward path rudder applied too late airplane will probably flop forward backward rather yawing sometimes helps jazz throttle time two after rudder applied use prop blast driving tail around airplane has yawed about 900 return rudder neutral rudder held longer airplane will fishtail during vertical downward path ma neuver will downgraded rudder returned neutral exactly right time airplane will finish turn head ing straight ground After airplane dives vertically same distance upward path per form another smooth quarter loop finish maneuver Dont add power until maneuver completed Ron Van Putte 12 Connie Drive Shal imar FL 32579 RC Scale Wischers continued page 27 equipment An opaque projector can used some success drawing projected large sheet paper lines traced being careful dis tort image misalignment another completely different system producing model drawing far accurate process model dimensions deter mined directly working detail draw ings used prototype aircraft very time consuming procedure An electronic calculator used divide individual piece dimensions scale factor odd decimal factors dimensional accuracy greater model building requires have used process three planes would prefer future except working draw ings very difficult obtain availability manufacturing draw ings makes model home-built type plane advantageous builders usually delighted flattered have someone model planes Permission take needed photos has never problem annual visits FAA convention Oshkosh Mecca homebuilders have exposed innovative design efforts create planes unique grace beauty Obvi ously planes seen would make good models find high percentage attractive extent year two can spent modeling Oshkosh also place photograph hundreds mili tary classic antique visiting planes first step generation drawing look straight lines structure used reference lines transferring dimensions possible draw ings should made reference centerline thrust line fuselage front spar leading edge wing tail surfaces would prefer develop drawing using same basic reference lines used prototype designer original 98 Model Aviation FINISH MODEL AS riY ONE IJr IflKEE LIlItKINl AIKLKAIi #121 GILMORE RED LION MISS PATTERSON MISS NEW ORLEANS PRICE $595 FROM YOUR DEALER OR ORDER DIRECT ADDING 15/ POSTAGE AND HANDLING 5RND5OFORCATALOG DEPT MN PAWNEE STREET MARCOS CALIFORNIA 9
Edition: Model Aviation - 1979/03
Page Numbers: 25, 96, 98
Radio Control Sport Aerobatics RonVan Putte AS IVE mentioned several times before AMA sends RC-orien ted club newsletters received AMA headquarters Most news letters have initials cover four five Headquarters staff members dicating have read newsletter Model Aviations publisher Carl Wheel eys initials AMAs Executive Director John Worths initials seldom missing Whether know club sends newsletter AMA gets high level attention another example importance club newsletters club AMA Have ever considered club newsletter editor probably hardest working club member After serving newsletter editor four years Ohio another two years Florida know what takes put out newsletter Yet editor probably least ap preciated volunteer club Generally editor ever hears about news letter particular issue never ar rived late Seldom club members contribute articles news tidbits unless editor begs threatens cajoles Yet great credit editors seem keep putting out news have club newsletter should recognize important club Just imagine what would like editor quit club newsletter stopped coming next time read something newsletter really enjoy tell editor Better yet offer help him/her newsletters Ive receiving lately have two recurring subjects safety cold weather activities importance safe operation hardly needs justified us should recognize responsibil ity prevent damage injury result actions RC flier particularly vulnerable accidents because nature airplanes fly freedom airplane causes op portunities accidents Most clubs have flying site rules promote safe operation However job enforcing rules generally falls individual rather group because no wants to tell another flier what to Yet whole club can affected unsafe activities single flier think time make enforcement safety rules job everyone Continued page 96 March 1979 25 Under watchful eye timing official 1978 Nats James Vanderback gets ready fire up Its Trion Alan Duplar design Rossi engine pipe Steve Stricker makes sure carb setting right before starting Enya BOXF Vertigo II Skyglass kit last Nats won second Senior Expert fifth combined age basis Oh haunting moments about start official flight Larry Perry Phoenix 6 modified thinner shorter wing Webra Speed SEND COUPON AND 250 FOR YOUR CATALOG TODAY weight proportional square velocity weight 2 2 times pattern ship velocity 2/3 pattern ship monsters will less damagingor perhaps equal under worst condition Horsepower limitations 2 hp-3 hp will limit speeds weights sizes F F Van Keurin Jr Greenville MS Oh Beautiful Bird am writing reference picture page 38 November issue Model Aviation lower lefthand corner Tom Stark Bird model am RC flier senior citizen Years back flew Bird its five cylinder Kinner Would please put touch Tom Stark would love get set plans model model back thirties greatest Thank help can give matter am enclosing self-addressed stamped envelope reply Arthur F Cervenka Oakdale NY have put Mr Cervenka touch Tom Stark Bird incidentally regarded have truly excellent airplane RC Technique/Myers continued page 17 article will paid itif send form publishable article send letter editor uses get just glory Finally could send informa tion get enough build item Name Address City StateZip Send MIDWEST PRODUCTS CO h4Hoba Indiana 46342 71400 South Indiana SI MA column will credit source magazine will pay $5 $15 contribution Its up you word Academy have meaning have share knowledge Thats another month Got get back Technicians course Keep writing George Myers 70 Froehlich Farm Rd Hicksville NY 11801 RC Aerobatics/Van Putte continued page 25 accident can have humorous side Cedar Rapids Skyhawks Log book edited Richard Hayslip con tains periodic articles written Ed Coc ciola entitled Notes Novices entire article November issue decided month guy will stick hand 14 prop being turned 60 engine let take five gashes half fingernail dont need giving advice nobody parts country clubs involved activities other flying since its too cold fly Before get irate letters Alaska Michigan North Dakota other states people fly year-round want make clear also RC fliers state Florida dont fly couple months during winter because its too cold know guys very well shave face morning cold weather activities never quite enjoyable flying warm sunshine can make winter bearable popular club cold weather activities conducting monthly indoor contests airplanes can built variety rules flown available large areas enjoyable indoor contests ever competed held 15 X 30 foot room nine-foot ceiling school gymnasium available better Some fellow club members sure surprise unexpected talent build ing flying indoor models An event might like tackle sponsorship Delta Dart program Local scouting other youth organ iza tions usually delighted have club sponsor such activity Besides theres lot satisfaction derived helping kids make first flying models Write AMA information about get involved have airplanes engines radio equipment assorted modeling accessories dont use sponsor club auction Almost modelers have something theyd like have taken off hands some can use get few bucks back selling something dont use better protect sellers some valuable items club auctions allow designation minimum acceptable bid require seller buy item bidding doesnt go high enough Its lot fun might manage buy something youve looking course us use cold weather building projects am no exception winter intend undertake build ing project has thinking stage quite House Balsa Y2A airplanes have always interested because obvious quality kit materials plans instructions ever never seen fly re luctant invest time air planes Two weeks ago oppor tunity fly House Balsa FW 190 experience convinced go ahead project FW 190 has some difficulty getting off ground since doesnt have steer able tailwheel has ailerons instead rudder However once airplane gets flying speed just like pattern air plane both stable responsive definitely beginners airplane course wind does bother airplane size 60-powered airplane wind about 10 mph day flew FW 190 no problems much fun winter project now building board choice House Balsa Beechcraft Bonanza Robart tricycle re tractable landing gear 05 10 FSR tricycle landing gear will eliminate ground handling problems associated tail-draggers bigger engine will help make up extra weight caused retractable landing gear plan use Royal receiver RS-5 servos built up kits 96 Model Aviation Please Print UContiol ARows FOUR NEW RACE READY DESIGNS JOIN THE MIDWEST COMPLETE KIT LINE case arent familiar Royal kit servos well worth checking out can buy four RS-5 kits $1999 previously reported building Royal receiver Its great buy too Kent Walters edits Sun Valley Fliers newsletter Bits-N-Pieces Club treas urer Art Marshall submitted following November issue describes lot us feel about pattern flying Pattern flying special challenge drive win trophies show off friends means mastering re mote control model airplane command toy perform fingers move sticks constantly demanding toy smoother graceful going through pre-de scribed maneuvers contest circuit fun meet nice people will find strongest competitor best helper have seen people beat out trophy loaning plane compet itor competing people competing maneuver trying make perfect also striving build plane will perform flawless maneuvers Everything must straight fit perfectly together days will make does what want will look new chal lenge might try scale plane get frustrated just fly Ugly Stick thats what its about Occasionally friend Dick McGraw gives hard time blow Double Stall Turn likes complain can perform difficult maneuver like Slow Roll have trouble easy like Stall Turn Stall Turn easy maneuver different versions wouldnt present aerobatic pattern classes meets criteria being good man euver namely difficult per form easy judge Stall Turns doomed poor start because flier hasnt taken trouble get wings level before pulling up airplane So give yourself fighting chance ten Stall Turn sure turn around far enough out can get wings level well before entering maneuver pullup should start directly front pilot look like beginning large loop airplane gets vertical attitude back stick should eased off airplane continues vertical climb During pullup vertical climb note airplane tends yaw either direction does should make small trim corrections rudder aileron necessary keep trying maneuver until airplane shows no tendency yaw airplane yaws way time other way next time probably dont have wings level during pullup Have someone observe what doing coach After airplane gets vertical climb reduce power idle apply full rudder airplane has slowed almost stop will have learn direction airplane likes turn best must also learn right time apply rudder put too soon airplane will simply perform U-turn maneuver will probably downgraded failing obtain stall having downward path two wing spans upward path rudder applied too late airplane will probably flop forward backward rather yawing sometimes helps jazz throttle time two after rudder applied use prop blast driving tail around airplane has yawed about 900 return rudder neutral rudder held longer airplane will fishtail during vertical downward path ma neuver will downgraded rudder returned neutral exactly right time airplane will finish turn head ing straight ground After airplane dives vertically same distance upward path per form another smooth quarter loop finish maneuver Dont add power until maneuver completed Ron Van Putte 12 Connie Drive Shal imar FL 32579 RC Scale Wischers continued page 27 equipment An opaque projector can used some success drawing projected large sheet paper lines traced being careful dis tort image misalignment another completely different system producing model drawing far accurate process model dimensions deter mined directly working detail draw ings used prototype aircraft very time consuming procedure An electronic calculator used divide individual piece dimensions scale factor odd decimal factors dimensional accuracy greater model building requires have used process three planes would prefer future except working draw ings very difficult obtain availability manufacturing draw ings makes model home-built type plane advantageous builders usually delighted flattered have someone model planes Permission take needed photos has never problem annual visits FAA convention Oshkosh Mecca homebuilders have exposed innovative design efforts create planes unique grace beauty Obvi ously planes seen would make good models find high percentage attractive extent year two can spent modeling Oshkosh also place photograph hundreds mili tary classic antique visiting planes first step generation drawing look straight lines structure used reference lines transferring dimensions possible draw ings should made reference centerline thrust line fuselage front spar leading edge wing tail surfaces would prefer develop drawing using same basic reference lines used prototype designer original 98 Model Aviation FINISH MODEL AS riY ONE IJr IflKEE LIlItKINl AIKLKAIi #121 GILMORE RED LION MISS PATTERSON MISS NEW ORLEANS PRICE $595 FROM YOUR DEALER OR ORDER DIRECT ADDING 15/ POSTAGE AND HANDLING 5RND5OFORCATALOG DEPT MN PAWNEE STREET MARCOS CALIFORNIA 9
Edition: Model Aviation - 1979/03
Page Numbers: 25, 96, 98
Radio Control Sport Aerobatics RonVan Putte AS IVE mentioned several times before AMA sends RC-orien ted club newsletters received AMA headquarters Most news letters have initials cover four five Headquarters staff members dicating have read newsletter Model Aviations publisher Carl Wheel eys initials AMAs Executive Director John Worths initials seldom missing Whether know club sends newsletter AMA gets high level attention another example importance club newsletters club AMA Have ever considered club newsletter editor probably hardest working club member After serving newsletter editor four years Ohio another two years Florida know what takes put out newsletter Yet editor probably least ap preciated volunteer club Generally editor ever hears about news letter particular issue never ar rived late Seldom club members contribute articles news tidbits unless editor begs threatens cajoles Yet great credit editors seem keep putting out news have club newsletter should recognize important club Just imagine what would like editor quit club newsletter stopped coming next time read something newsletter really enjoy tell editor Better yet offer help him/her newsletters Ive receiving lately have two recurring subjects safety cold weather activities importance safe operation hardly needs justified us should recognize responsibil ity prevent damage injury result actions RC flier particularly vulnerable accidents because nature airplanes fly freedom airplane causes op portunities accidents Most clubs have flying site rules promote safe operation However job enforcing rules generally falls individual rather group because no wants to tell another flier what to Yet whole club can affected unsafe activities single flier think time make enforcement safety rules job everyone Continued page 96 March 1979 25 Under watchful eye timing official 1978 Nats James Vanderback gets ready fire up Its Trion Alan Duplar design Rossi engine pipe Steve Stricker makes sure carb setting right before starting Enya BOXF Vertigo II Skyglass kit last Nats won second Senior Expert fifth combined age basis Oh haunting moments about start official flight Larry Perry Phoenix 6 modified thinner shorter wing Webra Speed SEND COUPON AND 250 FOR YOUR CATALOG TODAY weight proportional square velocity weight 2 2 times pattern ship velocity 2/3 pattern ship monsters will less damagingor perhaps equal under worst condition Horsepower limitations 2 hp-3 hp will limit speeds weights sizes F F Van Keurin Jr Greenville MS Oh Beautiful Bird am writing reference picture page 38 November issue Model Aviation lower lefthand corner Tom Stark Bird model am RC flier senior citizen Years back flew Bird its five cylinder Kinner Would please put touch Tom Stark would love get set plans model model back thirties greatest Thank help can give matter am enclosing self-addressed stamped envelope reply Arthur F Cervenka Oakdale NY have put Mr Cervenka touch Tom Stark Bird incidentally regarded have truly excellent airplane RC Technique/Myers continued page 17 article will paid itif send form publishable article send letter editor uses get just glory Finally could send informa tion get enough build item Name Address City StateZip Send MIDWEST PRODUCTS CO h4Hoba Indiana 46342 71400 South Indiana SI MA column will credit source magazine will pay $5 $15 contribution Its up you word Academy have meaning have share knowledge Thats another month Got get back Technicians course Keep writing George Myers 70 Froehlich Farm Rd Hicksville NY 11801 RC Aerobatics/Van Putte continued page 25 accident can have humorous side Cedar Rapids Skyhawks Log book edited Richard Hayslip con tains periodic articles written Ed Coc ciola entitled Notes Novices entire article November issue decided month guy will stick hand 14 prop being turned 60 engine let take five gashes half fingernail dont need giving advice nobody parts country clubs involved activities other flying since its too cold fly Before get irate letters Alaska Michigan North Dakota other states people fly year-round want make clear also RC fliers state Florida dont fly couple months during winter because its too cold know guys very well shave face morning cold weather activities never quite enjoyable flying warm sunshine can make winter bearable popular club cold weather activities conducting monthly indoor contests airplanes can built variety rules flown available large areas enjoyable indoor contests ever competed held 15 X 30 foot room nine-foot ceiling school gymnasium available better Some fellow club members sure surprise unexpected talent build ing flying indoor models An event might like tackle sponsorship Delta Dart program Local scouting other youth organ iza tions usually delighted have club sponsor such activity Besides theres lot satisfaction derived helping kids make first flying models Write AMA information about get involved have airplanes engines radio equipment assorted modeling accessories dont use sponsor club auction Almost modelers have something theyd like have taken off hands some can use get few bucks back selling something dont use better protect sellers some valuable items club auctions allow designation minimum acceptable bid require seller buy item bidding doesnt go high enough Its lot fun might manage buy something youve looking course us use cold weather building projects am no exception winter intend undertake build ing project has thinking stage quite House Balsa Y2A airplanes have always interested because obvious quality kit materials plans instructions ever never seen fly re luctant invest time air planes Two weeks ago oppor tunity fly House Balsa FW 190 experience convinced go ahead project FW 190 has some difficulty getting off ground since doesnt have steer able tailwheel has ailerons instead rudder However once airplane gets flying speed just like pattern air plane both stable responsive definitely beginners airplane course wind does bother airplane size 60-powered airplane wind about 10 mph day flew FW 190 no problems much fun winter project now building board choice House Balsa Beechcraft Bonanza Robart tricycle re tractable landing gear 05 10 FSR tricycle landing gear will eliminate ground handling problems associated tail-draggers bigger engine will help make up extra weight caused retractable landing gear plan use Royal receiver RS-5 servos built up kits 96 Model Aviation Please Print UContiol ARows FOUR NEW RACE READY DESIGNS JOIN THE MIDWEST COMPLETE KIT LINE case arent familiar Royal kit servos well worth checking out can buy four RS-5 kits $1999 previously reported building Royal receiver Its great buy too Kent Walters edits Sun Valley Fliers newsletter Bits-N-Pieces Club treas urer Art Marshall submitted following November issue describes lot us feel about pattern flying Pattern flying special challenge drive win trophies show off friends means mastering re mote control model airplane command toy perform fingers move sticks constantly demanding toy smoother graceful going through pre-de scribed maneuvers contest circuit fun meet nice people will find strongest competitor best helper have seen people beat out trophy loaning plane compet itor competing people competing maneuver trying make perfect also striving build plane will perform flawless maneuvers Everything must straight fit perfectly together days will make does what want will look new chal lenge might try scale plane get frustrated just fly Ugly Stick thats what its about Occasionally friend Dick McGraw gives hard time blow Double Stall Turn likes complain can perform difficult maneuver like Slow Roll have trouble easy like Stall Turn Stall Turn easy maneuver different versions wouldnt present aerobatic pattern classes meets criteria being good man euver namely difficult per form easy judge Stall Turns doomed poor start because flier hasnt taken trouble get wings level before pulling up airplane So give yourself fighting chance ten Stall Turn sure turn around far enough out can get wings level well before entering maneuver pullup should start directly front pilot look like beginning large loop airplane gets vertical attitude back stick should eased off airplane continues vertical climb During pullup vertical climb note airplane tends yaw either direction does should make small trim corrections rudder aileron necessary keep trying maneuver until airplane shows no tendency yaw airplane yaws way time other way next time probably dont have wings level during pullup Have someone observe what doing coach After airplane gets vertical climb reduce power idle apply full rudder airplane has slowed almost stop will have learn direction airplane likes turn best must also learn right time apply rudder put too soon airplane will simply perform U-turn maneuver will probably downgraded failing obtain stall having downward path two wing spans upward path rudder applied too late airplane will probably flop forward backward rather yawing sometimes helps jazz throttle time two after rudder applied use prop blast driving tail around airplane has yawed about 900 return rudder neutral rudder held longer airplane will fishtail during vertical downward path ma neuver will downgraded rudder returned neutral exactly right time airplane will finish turn head ing straight ground After airplane dives vertically same distance upward path per form another smooth quarter loop finish maneuver Dont add power until maneuver completed Ron Van Putte 12 Connie Drive Shal imar FL 32579 RC Scale Wischers continued page 27 equipment An opaque projector can used some success drawing projected large sheet paper lines traced being careful dis tort image misalignment another completely different system producing model drawing far accurate process model dimensions deter mined directly working detail draw ings used prototype aircraft very time consuming procedure An electronic calculator used divide individual piece dimensions scale factor odd decimal factors dimensional accuracy greater model building requires have used process three planes would prefer future except working draw ings very difficult obtain availability manufacturing draw ings makes model home-built type plane advantageous builders usually delighted flattered have someone model planes Permission take needed photos has never problem annual visits FAA convention Oshkosh Mecca homebuilders have exposed innovative design efforts create planes unique grace beauty Obvi ously planes seen would make good models find high percentage attractive extent year two can spent modeling Oshkosh also place photograph hundreds mili tary classic antique visiting planes first step generation drawing look straight lines structure used reference lines transferring dimensions possible draw ings should made reference centerline thrust line fuselage front spar leading edge wing tail surfaces would prefer develop drawing using same basic reference lines used prototype designer original 98 Model Aviation FINISH MODEL AS riY ONE IJr IflKEE LIlItKINl AIKLKAIi #121 GILMORE RED LION MISS PATTERSON MISS NEW ORLEANS PRICE $595 FROM YOUR DEALER OR ORDER DIRECT ADDING 15/ POSTAGE AND HANDLING 5RND5OFORCATALOG DEPT MN PAWNEE STREET MARCOS CALIFORNIA 9