George M Myers K@ i~LIzj3 HOky mis 7iT5 youxr plane AMA IS association sport fliers didnt start way AMA launched scientific educational organization aim teach boys girls scientifically design model aircraft AMA competitions designed reveal boys girls best understood science aviation demonstrated performance creations Winning Nats evidence academic achievement well craftsmanship flying skills Thats AMA named Academy Model Aeronautics An academy place scientific knowledge exchanged Charles H Grant cofounder Academy Model Aeronautics idea what founders thinking examine copy Aero Science Free Flight Charles Hampson Grant 1983 first published Model Airplane Design Theory Flight 1941 will find data graphs complex equations purpose designing gasoline rubber-powered models Available Charles H Grant Associates 10 Cottage Street Manchester Center VT 05255 book written famous fliers like Al Williams Jimmy Doolittle Amelia Earhart college educated pilots survived did best understand everything media glorified educated pilots Today commercial pilots have college degrees AMA boys girls grew up found other interests like fighting wars working living raising families Very few went become engineers scientists Some returned model aviation sport used show off physical skills like making touchdown As aged talked about companionship like footballers Middle-aged people make up 1/3 AMA membership now joined ARF sport Thats RC flying today Sport flying kit-builts ARFs function like factory-made footballs AMA became protective club composed 90% sport fliers during its 50 years existence AMA office has worked keep government interfering model aviation AMA promoted helpful things like pull tests control line models mufflers engines insurance license-free channels radio control models AMA kept lines communication open FAI FAA FCC other government offices just theyd know exist AMA Youth youth song has sung since WWII simple fact romance has gone out aviation Without romance can expect attract youth exception Right Stuff can think movie glamorizing aviation today None Airport series did half current AMA membership young could go airport could see touch airplanes talk pilots Today airport place see airplanes overhead Most time know airplanes exist noise contrails blue sky As far kids concerned real airplanes burn kerosene dont have propellers nose The Delta Dart program reminder s purpose attract youth science aviation AMA has nothing keep Show unsubsidized teenagers can compete adult factory teams annual Nationals competitionI know about AMA scholarships dont think advertised well enough Have seen article Model Aviation inspired youth compete scholarship earn academic recognition rather money Have seen anything extolling academic prowess winners Editors note See AMA News issue Compounding problem Walsh Healy Occupational Safety Health Act 1976 created OSHA whole new opportunity lawyers manufacturer chose improve light airplane lawyers starting grabbing money based idea didnt build wrong first place wouldnt need fixing now price light airplane doubled almost overnight increase cost manufacturers liability insurance So light plane manufacturers went out business OSHA lawyers made workplace safer eliminating Exit another opportunity aviation youth Never mind history records development Nothing ever perfect Nothing happens perfect world because perfection prevents change real world hundreds thousands people have died eating bad things Thats human race learned earths plants animals safe eat unfortunate flower gardens full poisonous plants bee stings kill some people Should kill 56 Model Aviation R E Vincent Burton 1939 Feather Merchant balsa silk decorations like Jimmie Matterns 1938 Lockheed Vega bees have let lawyers media redefine world Survival fittest means survival quickest smartest best informed healthiest physically perfect trace United States decline world fact have let shift attention away facts despite evidence stupidity unpardonable sin world What human being intent survival stupid enough drugs kill brain cells alcohol Put pen down people admire Stephen Hawking Brief History Time fact has done much science spite disability wonderful wish done well feel angry about disability just world Lou Gherigs Disease wouldnt exist real world try educate little essays should use math because mathematics languages science cant speak math cant understand understood scientists have avoided using mathematics column years because AMA members afraid must entertaining include pretty pictures order entice read words Ive yet learn write mathematics entertainingly Lets say want design model Jump Jet First problem Theres nothing can copy Youve got build mathematical model first wing area weight power etc correct equations see what does wont jump math right interested modern version Mr Grants book can buy copy Model Airplane Design Performance Howard L Chevelier PE 1993 $25 Challenge Engineering mc POBox 67 New Baden TX 77870 contains drawings explanations very little math Building valid math model takes work An alternate approach follow expert through step design process Write down expert computer program does exactly same things solve problem rnn program fill blanks Whats lost design process underlying assumptions simplifications can critical some situations An expert program hammer will produce poor screwdriver real reason writing expert programs help what expert does He/she will repeat same calculations exactly same way times necessary look ranges combinations variables purpose optimize design process called iteration expert program does mathematical dog work time after time making mistakes Computers excel iteration youd like try expert program look Electro Flight Design Kress Jets Inc 500 Ulster Road Saugerties NY 12477 hides math behind menus could worse print out glossary Help file will tell what Bob Kress means uses term like drag bucket Someone else another book program may have entirely different concept Definitions universal problem because people apply different meanings common terms Look up hat dictionary may surprised multitude meanings people have given three-letter word work words bookshelf holds several kinds dictionaries English electronic medical scientific foreign languages etc computer has several built software usually know what write never know what read Getting back Jump Jet design can use Electro Flight Design investigate thrust available various motors propellers varying instance propeller diameter pitch rpm gear ratios battery pack composition etc program wants define Electric-powered propeller-driven airplane Youll have make some assumptions order use Jump Jet Since know need thrnst to-weight ratio greater 10 get off ground can quickly find best propeller rpm estimated model weight spending money cut-and-try method want use glow engine instead electric motor can use 700-watts-per-horsepower find equivalent engine Once have enough thrnst lift assumed weight air can another calculation based wing area weight power define model propulsion package level flight Experience will tell whether can build model light enough strong enough fly because above references will help Getting back AMA think should should put greater emphasis its original purpose promote education think AMA should example obtain FCC permission telemetry RC airplanes publish articles people have succeeded doing last scientific articles recall Maynard Hills articles electrostatic stabilizer may disagree may like AMA Write District VP let him know what think Before jump out AMA protest something think else will fight off governments trying eliminate model aviation works FAA FCC preserve ability fly RC Whos friend l 1994 57 1938 Rocket gasolinelignition motor 1939 Feather Merchant typical what AMA started 1936
Edition: Model Aviation - 1994/04
Page Numbers: 56, 57
George M Myers K@ i~LIzj3 HOky mis 7iT5 youxr plane AMA IS association sport fliers didnt start way AMA launched scientific educational organization aim teach boys girls scientifically design model aircraft AMA competitions designed reveal boys girls best understood science aviation demonstrated performance creations Winning Nats evidence academic achievement well craftsmanship flying skills Thats AMA named Academy Model Aeronautics An academy place scientific knowledge exchanged Charles H Grant cofounder Academy Model Aeronautics idea what founders thinking examine copy Aero Science Free Flight Charles Hampson Grant 1983 first published Model Airplane Design Theory Flight 1941 will find data graphs complex equations purpose designing gasoline rubber-powered models Available Charles H Grant Associates 10 Cottage Street Manchester Center VT 05255 book written famous fliers like Al Williams Jimmy Doolittle Amelia Earhart college educated pilots survived did best understand everything media glorified educated pilots Today commercial pilots have college degrees AMA boys girls grew up found other interests like fighting wars working living raising families Very few went become engineers scientists Some returned model aviation sport used show off physical skills like making touchdown As aged talked about companionship like footballers Middle-aged people make up 1/3 AMA membership now joined ARF sport Thats RC flying today Sport flying kit-builts ARFs function like factory-made footballs AMA became protective club composed 90% sport fliers during its 50 years existence AMA office has worked keep government interfering model aviation AMA promoted helpful things like pull tests control line models mufflers engines insurance license-free channels radio control models AMA kept lines communication open FAI FAA FCC other government offices just theyd know exist AMA Youth youth song has sung since WWII simple fact romance has gone out aviation Without romance can expect attract youth exception Right Stuff can think movie glamorizing aviation today None Airport series did half current AMA membership young could go airport could see touch airplanes talk pilots Today airport place see airplanes overhead Most time know airplanes exist noise contrails blue sky As far kids concerned real airplanes burn kerosene dont have propellers nose The Delta Dart program reminder s purpose attract youth science aviation AMA has nothing keep Show unsubsidized teenagers can compete adult factory teams annual Nationals competitionI know about AMA scholarships dont think advertised well enough Have seen article Model Aviation inspired youth compete scholarship earn academic recognition rather money Have seen anything extolling academic prowess winners Editors note See AMA News issue Compounding problem Walsh Healy Occupational Safety Health Act 1976 created OSHA whole new opportunity lawyers manufacturer chose improve light airplane lawyers starting grabbing money based idea didnt build wrong first place wouldnt need fixing now price light airplane doubled almost overnight increase cost manufacturers liability insurance So light plane manufacturers went out business OSHA lawyers made workplace safer eliminating Exit another opportunity aviation youth Never mind history records development Nothing ever perfect Nothing happens perfect world because perfection prevents change real world hundreds thousands people have died eating bad things Thats human race learned earths plants animals safe eat unfortunate flower gardens full poisonous plants bee stings kill some people Should kill 56 Model Aviation R E Vincent Burton 1939 Feather Merchant balsa silk decorations like Jimmie Matterns 1938 Lockheed Vega bees have let lawyers media redefine world Survival fittest means survival quickest smartest best informed healthiest physically perfect trace United States decline world fact have let shift attention away facts despite evidence stupidity unpardonable sin world What human being intent survival stupid enough drugs kill brain cells alcohol Put pen down people admire Stephen Hawking Brief History Time fact has done much science spite disability wonderful wish done well feel angry about disability just world Lou Gherigs Disease wouldnt exist real world try educate little essays should use math because mathematics languages science cant speak math cant understand understood scientists have avoided using mathematics column years because AMA members afraid must entertaining include pretty pictures order entice read words Ive yet learn write mathematics entertainingly Lets say want design model Jump Jet First problem Theres nothing can copy Youve got build mathematical model first wing area weight power etc correct equations see what does wont jump math right interested modern version Mr Grants book can buy copy Model Airplane Design Performance Howard L Chevelier PE 1993 $25 Challenge Engineering mc POBox 67 New Baden TX 77870 contains drawings explanations very little math Building valid math model takes work An alternate approach follow expert through step design process Write down expert computer program does exactly same things solve problem rnn program fill blanks Whats lost design process underlying assumptions simplifications can critical some situations An expert program hammer will produce poor screwdriver real reason writing expert programs help what expert does He/she will repeat same calculations exactly same way times necessary look ranges combinations variables purpose optimize design process called iteration expert program does mathematical dog work time after time making mistakes Computers excel iteration youd like try expert program look Electro Flight Design Kress Jets Inc 500 Ulster Road Saugerties NY 12477 hides math behind menus could worse print out glossary Help file will tell what Bob Kress means uses term like drag bucket Someone else another book program may have entirely different concept Definitions universal problem because people apply different meanings common terms Look up hat dictionary may surprised multitude meanings people have given three-letter word work words bookshelf holds several kinds dictionaries English electronic medical scientific foreign languages etc computer has several built software usually know what write never know what read Getting back Jump Jet design can use Electro Flight Design investigate thrust available various motors propellers varying instance propeller diameter pitch rpm gear ratios battery pack composition etc program wants define Electric-powered propeller-driven airplane Youll have make some assumptions order use Jump Jet Since know need thrnst to-weight ratio greater 10 get off ground can quickly find best propeller rpm estimated model weight spending money cut-and-try method want use glow engine instead electric motor can use 700-watts-per-horsepower find equivalent engine Once have enough thrnst lift assumed weight air can another calculation based wing area weight power define model propulsion package level flight Experience will tell whether can build model light enough strong enough fly because above references will help Getting back AMA think should should put greater emphasis its original purpose promote education think AMA should example obtain FCC permission telemetry RC airplanes publish articles people have succeeded doing last scientific articles recall Maynard Hills articles electrostatic stabilizer may disagree may like AMA Write District VP let him know what think Before jump out AMA protest something think else will fight off governments trying eliminate model aviation works FAA FCC preserve ability fly RC Whos friend l 1994 57 1938 Rocket gasolinelignition motor 1939 Feather Merchant typical what AMA started 1936