Free Flight Duration Bob Meuser CO-2 POWER lnterst rise Material column seems come bunches nothing subject years sud denly bunch material same topic Anyhow increasing number modelers seem recognizing vir tues CO-2 power small quickly-built models no starting problems messing fuels glow heads electric starters rubber-winders ample power giving excellent performance build light first item letter Al Lidberg CO-2-powered Civy Boy appeared August 1984 issue written response item CO-2 power appeared column Larry Kruse subbed second item about innovative way getting construction plans CO-2 models Wed also like call attention rules-change proposal FF-86-6 Heres Al Lidbergs letter happy see write-up CO-2 duration Model Aviation club Phoenix MAC has flown CO-2 Scale Duration Scramble events past few years Cant remember did flew CO-2 Scale rub ber rules ie duration plus scale points Scramble event probably fun though goal achieve flying time 30-minute period allowed unlimited number flights time counting no max limit two planes could used first returned launch siteor lost OOSbefore second could flown last Scramble 1982 won about TA mm thats chasing want again antique chase scooter thrown rod windy day lots running order Anyhow real purpose let ter suggest CO-2 Duration can flown CO-2 replicaslike Civy Boy 74 same issue guest column replicas lot fun like gas Old-Timers build up faster course lot cheaper Plans available quite fewheres list ones Ive published Taibis Powerhouse Shulmans Super Skyrocket Heits Scrappy Mathews Fubar Giltiams Civy Boy 74 Model Airplane News 9/78 Flying Models 1/80 Flying Models 4/81 Flying Models 1/82 Model nation 8/84 also have some awaiting publication deBolts Airfoiler MAN San De Hogan Frisco Kid FM Sadlers Pacemaker low wing MB Another CO-2 model has worked very well Little Bit appeared MAN July 1981 ultra-light fairly large exceptional flier flew well No-Name CO-2 motor cost $695 Pete Mohr old friend used Free Flighter recently got back Al Lidberg Tempe AZ belongs club Phoenix MAC has flying CO2 models Scale Duration Scramble events past several years Hes very good success Little Bit Theres good section CO-2 column 74 Model Aviation Dick Hall Athens AL ready go 0&R 33-powered Wasp Lexington KY Blue grass FF Championships engine man 33 really honks Bill Barr photo it After 20-year lapse hes back Scale sport CO-2 powered models kids gets plans CO-2 version just about model wants plans First finds plan flying model aircraft magazine usually small-scale version actual plan takes local copy center have copier enlarges 148% original size machine says enlarges 164% lies copy usually comes out just right size CO-2 model unlikely event plan still too small enlarged copy first copy will turn trick Model weight vs size back Roger Schroeder Shawnee Mission KS wrote letter part follows wanted estimate finished weight Old-Timer Free Flight modelthe Scientific Coronet knew what engine coil condenser batteries weigh sure about weight airframe compare pulled some existing models off basement rafters weighed them. Roger presented table graph showing wing loading airframe weight engine rubber noseblock prop divided wing area vs wing area Later obtained some data additional models range extends tiny Peerless Jr Endurance rubber-power model wing area 032 sq ft Comet Sailplane gassie area 596 sq ft re-plotted Rogers data log-log form scales become stretched out lower end might bother some such plot has some useful features sort thing thing quarterinch represents 5tJ70 difference part graph represents 5% dif Co S N 0 0 z 0 0 -j 0 z w U 52kAYBOY SR RIG 80 PLAYBOY SR F/F 80 STARDUSTER 900 COMET SAILPLANE WAKEFIELD SLOPE 1/2020 ZOMBIE AMERICAN ACE 36PLAYBOY ELECTRIC 50 MISS WORLDS FAIRRIG 68 020 SAILPLANE 1 02 30 MISS WORLDS FAIR PEERLESS JR ENDURANCE 05 12 WING AREA sq ft WATTS UP RIG 52 ELECTRIC 5 10 Roger Schroeder Shawnee Mission KS surveyed wing loading bunch models Bob has replotted us Please no simple linear plot scales both logarithmic Bob expounds subject column ference everywhere too things dont tend get jammed up lower end clincher however straight line can represented form ula form y mply slope line simple scaling laws have such form compare two models identical except scale weight must go cube span double span weight increases eight fold follows wing loading goes square root wing area variables Roger chose plot good models scale models other loglog plot should fit line slope Nonsense no way Sailplane scaledup Peerless Jr Endurance rubber-power model Oh no. look graph course various models including rub ber gas electric power both FF RC plot nice straight line what somewhat surprising arent far off have report written Crawford H Greenewalt President E du Pont de Nemours Co wasnt running du Pont running over world photographing studying flying creatures sorts especially humming birds compiled size weight data hundreds flying creatures ranging weight half milligram 10 kilogramsa dynamic range over 10 millionand made log-log graphs everything could think though albatross no way scaled-up fruit fly simple scaling law fit data pretty well wouldnt have surprised extended graph another foot would have found Boeing 747 too far off curve So what So need data thing would convincing data hundred typical Out door Free Flight models data 13 will starters middle-of-theroad models use curve estimate airframe weight especially light heavy construction subtract add up 30% bit extreme cases Ornithopter Modelers Society goes bigtime Half century ago members Chicago Aeronuts put Ornithopter record up over five mm World War II got way nothing much happened Record flights over five minutes made Sixties models having flapping propellers rather flapping wings Later rules Continued page 172 April 1985 75 Eric Anderson looks good air Struckdeslgned Caudron N found cause took 4th 0ldTimer Scale 1984 SAM Champs held Bong Field WI Photo Larry Lehrman Bill Barr Lexington KY winds Linstrum-designed Auntie Freeze another flight plane published Sig Air Modeler early Seventies Photo Jennifer Barr Second Edition Most Complete Guide Market 167 Manufacturers Importers etc 250 Pages postage $165 Total cost $8-60 Send $860 includes shipping UPS APO foreign surface mail $1245 foreign air mail Consumers Guide MA 150 ott st Harrlsonburg VA 22801 I- S FF Duration/Meuser Continued page 75 important source vital information written today re main both inspirational informative addition serve chronicles bygone eras beloved sport Only small fraction space between traditional yearbook-style heavy-paper covers occupied reprint 1934 Year Book itself things besides story Jasco Franks com pany supplied Indoor modeling materials lot Out door modeling supplies materials early Thirties late Forties 1934 Jasco Guide Log Book containing plans information about modeling era Jasco catalogs 1934 through 1940 merely catalogs also contain wealth information some 15 plans pre pared never-to-be 1940 Yearbook first two issues Model Aviation published newborn American Academy Model Aeronautics later called you-know-what published mid-1936 first issue Model Aeronautics published Frank himself 1937 story writing publishing Yearbooks spanned three decades some notes Jim Cahill Wally Simmers regarding origins folding prop lifting stab sidethrust downthrust early days Yearbooks financially successful helped support some Jascos losses recently however havent what might call financially viable An attempt Frank get grass roots sup port Free Flight community late Sixties met deafening silence robbed ourselves potential 1970 Yearbook amazingperhaps little dis gustingto find virtually new idea Ive ever thought heard neatly laid out Franks ancient books Really dont have complete set Franks books missing good source information present-day sport competition modeling Throughout Franks writings pervades philosophy man dearly loves model aviation has derived great spiritual benefit has done level best make available others publication kits other activities means lives too might become enriched Most Franks books available AMA Supply Service Franks publications available Frank himself care Model Aeronautic Publications PO Box 135 Northridge CA 91324 1934 Yearbook costs $550 postpaid Make checks payable Frank Zak Ill back two months Bob Meuser 4200 Gregory St Oakland CA 94619 FF Scale/Warner Continued page 77 real Flying Aces spirit class Jack suggests models line fun-fly competition None ROG rise-off-ground scaleruler stuff qualify model sell dime less its heyday use Jacks list made wood sizes no smaller original may single-covered Japanese tissue please tail may enlarged stiff paper call-outs changed allow stick tissue nose block rear peg arrangements may changed allow stretch-winding size prop could used flying Bonus points would given according type plane five high-winger 15 low-winger 10 bipe triplanes drawing 20 Scale points up maximum 30 would given closely model conformed model plan would presented judging Sound like fun Dont take too seriously could turn out best fun event club has tried long time Happy hints department Want sand radius looking just right tool Keep handy pack lit tle sanding boards see Mom use nails bend fingers around rounded surface will keep shape bend little practice can make just right shape sanding block matter few seconds Books will love department Missed out Ron Williams fantastic book Indoor models Indoor Scale Well its back 15 bucks wont find better buy town Profusely-illustrated chock-full plans good ideas missed great gift new modeler Try local book shop Gibbs Smith Inc PO Box 667 Layton UT 84041 Its name Building Flying Indoor Model Airplanes Bill Hannan author Peanut Power Scrapbook Scale has done again Bills Scrapbook Scale No II out already Hannan fan oos time fading past timer used thing limit length engine run means loaded spring timer set start flight control scene Dethermalization yet Out Sight Losing Free Flights almost routine Lou Roberts 172 Model Aviation r TAPER ACETM Rib Profiler makes tapered eliptical wing design easy Works faster computer Adjusts locks size rib instantly Curve plates provided draw 3 different full symmetrical 3 different semi-symmetrical airfoils Flat bottom airfoils can also drawn Send check MO $2795 Jim Donaro 543 Bedford Street Concord MA 01742
Edition: Model Aviation - 1985/04
Page Numbers: 74, 75, 172
Free Flight Duration Bob Meuser CO-2 POWER lnterst rise Material column seems come bunches nothing subject years sud denly bunch material same topic Anyhow increasing number modelers seem recognizing vir tues CO-2 power small quickly-built models no starting problems messing fuels glow heads electric starters rubber-winders ample power giving excellent performance build light first item letter Al Lidberg CO-2-powered Civy Boy appeared August 1984 issue written response item CO-2 power appeared column Larry Kruse subbed second item about innovative way getting construction plans CO-2 models Wed also like call attention rules-change proposal FF-86-6 Heres Al Lidbergs letter happy see write-up CO-2 duration Model Aviation club Phoenix MAC has flown CO-2 Scale Duration Scramble events past few years Cant remember did flew CO-2 Scale rub ber rules ie duration plus scale points Scramble event probably fun though goal achieve flying time 30-minute period allowed unlimited number flights time counting no max limit two planes could used first returned launch siteor lost OOSbefore second could flown last Scramble 1982 won about TA mm thats chasing want again antique chase scooter thrown rod windy day lots running order Anyhow real purpose let ter suggest CO-2 Duration can flown CO-2 replicaslike Civy Boy 74 same issue guest column replicas lot fun like gas Old-Timers build up faster course lot cheaper Plans available quite fewheres list ones Ive published Taibis Powerhouse Shulmans Super Skyrocket Heits Scrappy Mathews Fubar Giltiams Civy Boy 74 Model Airplane News 9/78 Flying Models 1/80 Flying Models 4/81 Flying Models 1/82 Model nation 8/84 also have some awaiting publication deBolts Airfoiler MAN San De Hogan Frisco Kid FM Sadlers Pacemaker low wing MB Another CO-2 model has worked very well Little Bit appeared MAN July 1981 ultra-light fairly large exceptional flier flew well No-Name CO-2 motor cost $695 Pete Mohr old friend used Free Flighter recently got back Al Lidberg Tempe AZ belongs club Phoenix MAC has flying CO2 models Scale Duration Scramble events past several years Hes very good success Little Bit Theres good section CO-2 column 74 Model Aviation Dick Hall Athens AL ready go 0&R 33-powered Wasp Lexington KY Blue grass FF Championships engine man 33 really honks Bill Barr photo it After 20-year lapse hes back Scale sport CO-2 powered models kids gets plans CO-2 version just about model wants plans First finds plan flying model aircraft magazine usually small-scale version actual plan takes local copy center have copier enlarges 148% original size machine says enlarges 164% lies copy usually comes out just right size CO-2 model unlikely event plan still too small enlarged copy first copy will turn trick Model weight vs size back Roger Schroeder Shawnee Mission KS wrote letter part follows wanted estimate finished weight Old-Timer Free Flight modelthe Scientific Coronet knew what engine coil condenser batteries weigh sure about weight airframe compare pulled some existing models off basement rafters weighed them. Roger presented table graph showing wing loading airframe weight engine rubber noseblock prop divided wing area vs wing area Later obtained some data additional models range extends tiny Peerless Jr Endurance rubber-power model wing area 032 sq ft Comet Sailplane gassie area 596 sq ft re-plotted Rogers data log-log form scales become stretched out lower end might bother some such plot has some useful features sort thing thing quarterinch represents 5tJ70 difference part graph represents 5% dif Co S N 0 0 z 0 0 -j 0 z w U 52kAYBOY SR RIG 80 PLAYBOY SR F/F 80 STARDUSTER 900 COMET SAILPLANE WAKEFIELD SLOPE 1/2020 ZOMBIE AMERICAN ACE 36PLAYBOY ELECTRIC 50 MISS WORLDS FAIRRIG 68 020 SAILPLANE 1 02 30 MISS WORLDS FAIR PEERLESS JR ENDURANCE 05 12 WING AREA sq ft WATTS UP RIG 52 ELECTRIC 5 10 Roger Schroeder Shawnee Mission KS surveyed wing loading bunch models Bob has replotted us Please no simple linear plot scales both logarithmic Bob expounds subject column ference everywhere too things dont tend get jammed up lower end clincher however straight line can represented form ula form y mply slope line simple scaling laws have such form compare two models identical except scale weight must go cube span double span weight increases eight fold follows wing loading goes square root wing area variables Roger chose plot good models scale models other loglog plot should fit line slope Nonsense no way Sailplane scaledup Peerless Jr Endurance rubber-power model Oh no. look graph course various models including rub ber gas electric power both FF RC plot nice straight line what somewhat surprising arent far off have report written Crawford H Greenewalt President E du Pont de Nemours Co wasnt running du Pont running over world photographing studying flying creatures sorts especially humming birds compiled size weight data hundreds flying creatures ranging weight half milligram 10 kilogramsa dynamic range over 10 millionand made log-log graphs everything could think though albatross no way scaled-up fruit fly simple scaling law fit data pretty well wouldnt have surprised extended graph another foot would have found Boeing 747 too far off curve So what So need data thing would convincing data hundred typical Out door Free Flight models data 13 will starters middle-of-theroad models use curve estimate airframe weight especially light heavy construction subtract add up 30% bit extreme cases Ornithopter Modelers Society goes bigtime Half century ago members Chicago Aeronuts put Ornithopter record up over five mm World War II got way nothing much happened Record flights over five minutes made Sixties models having flapping propellers rather flapping wings Later rules Continued page 172 April 1985 75 Eric Anderson looks good air Struckdeslgned Caudron N found cause took 4th 0ldTimer Scale 1984 SAM Champs held Bong Field WI Photo Larry Lehrman Bill Barr Lexington KY winds Linstrum-designed Auntie Freeze another flight plane published Sig Air Modeler early Seventies Photo Jennifer Barr Second Edition Most Complete Guide Market 167 Manufacturers Importers etc 250 Pages postage $165 Total cost $8-60 Send $860 includes shipping UPS APO foreign surface mail $1245 foreign air mail Consumers Guide MA 150 ott st Harrlsonburg VA 22801 I- S FF Duration/Meuser Continued page 75 important source vital information written today re main both inspirational informative addition serve chronicles bygone eras beloved sport Only small fraction space between traditional yearbook-style heavy-paper covers occupied reprint 1934 Year Book itself things besides story Jasco Franks com pany supplied Indoor modeling materials lot Out door modeling supplies materials early Thirties late Forties 1934 Jasco Guide Log Book containing plans information about modeling era Jasco catalogs 1934 through 1940 merely catalogs also contain wealth information some 15 plans pre pared never-to-be 1940 Yearbook first two issues Model Aviation published newborn American Academy Model Aeronautics later called you-know-what published mid-1936 first issue Model Aeronautics published Frank himself 1937 story writing publishing Yearbooks spanned three decades some notes Jim Cahill Wally Simmers regarding origins folding prop lifting stab sidethrust downthrust early days Yearbooks financially successful helped support some Jascos losses recently however havent what might call financially viable An attempt Frank get grass roots sup port Free Flight community late Sixties met deafening silence robbed ourselves potential 1970 Yearbook amazingperhaps little dis gustingto find virtually new idea Ive ever thought heard neatly laid out Franks ancient books Really dont have complete set Franks books missing good source information present-day sport competition modeling Throughout Franks writings pervades philosophy man dearly loves model aviation has derived great spiritual benefit has done level best make available others publication kits other activities means lives too might become enriched Most Franks books available AMA Supply Service Franks publications available Frank himself care Model Aeronautic Publications PO Box 135 Northridge CA 91324 1934 Yearbook costs $550 postpaid Make checks payable Frank Zak Ill back two months Bob Meuser 4200 Gregory St Oakland CA 94619 FF Scale/Warner Continued page 77 real Flying Aces spirit class Jack suggests models line fun-fly competition None ROG rise-off-ground scaleruler stuff qualify model sell dime less its heyday use Jacks list made wood sizes no smaller original may single-covered Japanese tissue please tail may enlarged stiff paper call-outs changed allow stick tissue nose block rear peg arrangements may changed allow stretch-winding size prop could used flying Bonus points would given according type plane five high-winger 15 low-winger 10 bipe triplanes drawing 20 Scale points up maximum 30 would given closely model conformed model plan would presented judging Sound like fun Dont take too seriously could turn out best fun event club has tried long time Happy hints department Want sand radius looking just right tool Keep handy pack lit tle sanding boards see Mom use nails bend fingers around rounded surface will keep shape bend little practice can make just right shape sanding block matter few seconds Books will love department Missed out Ron Williams fantastic book Indoor models Indoor Scale Well its back 15 bucks wont find better buy town Profusely-illustrated chock-full plans good ideas missed great gift new modeler Try local book shop Gibbs Smith Inc PO Box 667 Layton UT 84041 Its name Building Flying Indoor Model Airplanes Bill Hannan author Peanut Power Scrapbook Scale has done again Bills Scrapbook Scale No II out already Hannan fan oos time fading past timer used thing limit length engine run means loaded spring timer set start flight control scene Dethermalization yet Out Sight Losing Free Flights almost routine Lou Roberts 172 Model Aviation r TAPER ACETM Rib Profiler makes tapered eliptical wing design easy Works faster computer Adjusts locks size rib instantly Curve plates provided draw 3 different full symmetrical 3 different semi-symmetrical airfoils Flat bottom airfoils can also drawn Send check MO $2795 Jim Donaro 543 Bedford Street Concord MA 01742
Edition: Model Aviation - 1985/04
Page Numbers: 74, 75, 172
Free Flight Duration Bob Meuser CO-2 POWER lnterst rise Material column seems come bunches nothing subject years sud denly bunch material same topic Anyhow increasing number modelers seem recognizing vir tues CO-2 power small quickly-built models no starting problems messing fuels glow heads electric starters rubber-winders ample power giving excellent performance build light first item letter Al Lidberg CO-2-powered Civy Boy appeared August 1984 issue written response item CO-2 power appeared column Larry Kruse subbed second item about innovative way getting construction plans CO-2 models Wed also like call attention rules-change proposal FF-86-6 Heres Al Lidbergs letter happy see write-up CO-2 duration Model Aviation club Phoenix MAC has flown CO-2 Scale Duration Scramble events past few years Cant remember did flew CO-2 Scale rub ber rules ie duration plus scale points Scramble event probably fun though goal achieve flying time 30-minute period allowed unlimited number flights time counting no max limit two planes could used first returned launch siteor lost OOSbefore second could flown last Scramble 1982 won about TA mm thats chasing want again antique chase scooter thrown rod windy day lots running order Anyhow real purpose let ter suggest CO-2 Duration can flown CO-2 replicaslike Civy Boy 74 same issue guest column replicas lot fun like gas Old-Timers build up faster course lot cheaper Plans available quite fewheres list ones Ive published Taibis Powerhouse Shulmans Super Skyrocket Heits Scrappy Mathews Fubar Giltiams Civy Boy 74 Model Airplane News 9/78 Flying Models 1/80 Flying Models 4/81 Flying Models 1/82 Model nation 8/84 also have some awaiting publication deBolts Airfoiler MAN San De Hogan Frisco Kid FM Sadlers Pacemaker low wing MB Another CO-2 model has worked very well Little Bit appeared MAN July 1981 ultra-light fairly large exceptional flier flew well No-Name CO-2 motor cost $695 Pete Mohr old friend used Free Flighter recently got back Al Lidberg Tempe AZ belongs club Phoenix MAC has flying CO2 models Scale Duration Scramble events past several years Hes very good success Little Bit Theres good section CO-2 column 74 Model Aviation Dick Hall Athens AL ready go 0&R 33-powered Wasp Lexington KY Blue grass FF Championships engine man 33 really honks Bill Barr photo it After 20-year lapse hes back Scale sport CO-2 powered models kids gets plans CO-2 version just about model wants plans First finds plan flying model aircraft magazine usually small-scale version actual plan takes local copy center have copier enlarges 148% original size machine says enlarges 164% lies copy usually comes out just right size CO-2 model unlikely event plan still too small enlarged copy first copy will turn trick Model weight vs size back Roger Schroeder Shawnee Mission KS wrote letter part follows wanted estimate finished weight Old-Timer Free Flight modelthe Scientific Coronet knew what engine coil condenser batteries weigh sure about weight airframe compare pulled some existing models off basement rafters weighed them. Roger presented table graph showing wing loading airframe weight engine rubber noseblock prop divided wing area vs wing area Later obtained some data additional models range extends tiny Peerless Jr Endurance rubber-power model wing area 032 sq ft Comet Sailplane gassie area 596 sq ft re-plotted Rogers data log-log form scales become stretched out lower end might bother some such plot has some useful features sort thing thing quarterinch represents 5tJ70 difference part graph represents 5% dif Co S N 0 0 z 0 0 -j 0 z w U 52kAYBOY SR RIG 80 PLAYBOY SR F/F 80 STARDUSTER 900 COMET SAILPLANE WAKEFIELD SLOPE 1/2020 ZOMBIE AMERICAN ACE 36PLAYBOY ELECTRIC 50 MISS WORLDS FAIRRIG 68 020 SAILPLANE 1 02 30 MISS WORLDS FAIR PEERLESS JR ENDURANCE 05 12 WING AREA sq ft WATTS UP RIG 52 ELECTRIC 5 10 Roger Schroeder Shawnee Mission KS surveyed wing loading bunch models Bob has replotted us Please no simple linear plot scales both logarithmic Bob expounds subject column ference everywhere too things dont tend get jammed up lower end clincher however straight line can represented form ula form y mply slope line simple scaling laws have such form compare two models identical except scale weight must go cube span double span weight increases eight fold follows wing loading goes square root wing area variables Roger chose plot good models scale models other loglog plot should fit line slope Nonsense no way Sailplane scaledup Peerless Jr Endurance rubber-power model Oh no. look graph course various models including rub ber gas electric power both FF RC plot nice straight line what somewhat surprising arent far off have report written Crawford H Greenewalt President E du Pont de Nemours Co wasnt running du Pont running over world photographing studying flying creatures sorts especially humming birds compiled size weight data hundreds flying creatures ranging weight half milligram 10 kilogramsa dynamic range over 10 millionand made log-log graphs everything could think though albatross no way scaled-up fruit fly simple scaling law fit data pretty well wouldnt have surprised extended graph another foot would have found Boeing 747 too far off curve So what So need data thing would convincing data hundred typical Out door Free Flight models data 13 will starters middle-of-theroad models use curve estimate airframe weight especially light heavy construction subtract add up 30% bit extreme cases Ornithopter Modelers Society goes bigtime Half century ago members Chicago Aeronuts put Ornithopter record up over five mm World War II got way nothing much happened Record flights over five minutes made Sixties models having flapping propellers rather flapping wings Later rules Continued page 172 April 1985 75 Eric Anderson looks good air Struckdeslgned Caudron N found cause took 4th 0ldTimer Scale 1984 SAM Champs held Bong Field WI Photo Larry Lehrman Bill Barr Lexington KY winds Linstrum-designed Auntie Freeze another flight plane published Sig Air Modeler early Seventies Photo Jennifer Barr Second Edition Most Complete Guide Market 167 Manufacturers Importers etc 250 Pages postage $165 Total cost $8-60 Send $860 includes shipping UPS APO foreign surface mail $1245 foreign air mail Consumers Guide MA 150 ott st Harrlsonburg VA 22801 I- S FF Duration/Meuser Continued page 75 important source vital information written today re main both inspirational informative addition serve chronicles bygone eras beloved sport Only small fraction space between traditional yearbook-style heavy-paper covers occupied reprint 1934 Year Book itself things besides story Jasco Franks com pany supplied Indoor modeling materials lot Out door modeling supplies materials early Thirties late Forties 1934 Jasco Guide Log Book containing plans information about modeling era Jasco catalogs 1934 through 1940 merely catalogs also contain wealth information some 15 plans pre pared never-to-be 1940 Yearbook first two issues Model Aviation published newborn American Academy Model Aeronautics later called you-know-what published mid-1936 first issue Model Aeronautics published Frank himself 1937 story writing publishing Yearbooks spanned three decades some notes Jim Cahill Wally Simmers regarding origins folding prop lifting stab sidethrust downthrust early days Yearbooks financially successful helped support some Jascos losses recently however havent what might call financially viable An attempt Frank get grass roots sup port Free Flight community late Sixties met deafening silence robbed ourselves potential 1970 Yearbook amazingperhaps little dis gustingto find virtually new idea Ive ever thought heard neatly laid out Franks ancient books Really dont have complete set Franks books missing good source information present-day sport competition modeling Throughout Franks writings pervades philosophy man dearly loves model aviation has derived great spiritual benefit has done level best make available others publication kits other activities means lives too might become enriched Most Franks books available AMA Supply Service Franks publications available Frank himself care Model Aeronautic Publications PO Box 135 Northridge CA 91324 1934 Yearbook costs $550 postpaid Make checks payable Frank Zak Ill back two months Bob Meuser 4200 Gregory St Oakland CA 94619 FF Scale/Warner Continued page 77 real Flying Aces spirit class Jack suggests models line fun-fly competition None ROG rise-off-ground scaleruler stuff qualify model sell dime less its heyday use Jacks list made wood sizes no smaller original may single-covered Japanese tissue please tail may enlarged stiff paper call-outs changed allow stick tissue nose block rear peg arrangements may changed allow stretch-winding size prop could used flying Bonus points would given according type plane five high-winger 15 low-winger 10 bipe triplanes drawing 20 Scale points up maximum 30 would given closely model conformed model plan would presented judging Sound like fun Dont take too seriously could turn out best fun event club has tried long time Happy hints department Want sand radius looking just right tool Keep handy pack lit tle sanding boards see Mom use nails bend fingers around rounded surface will keep shape bend little practice can make just right shape sanding block matter few seconds Books will love department Missed out Ron Williams fantastic book Indoor models Indoor Scale Well its back 15 bucks wont find better buy town Profusely-illustrated chock-full plans good ideas missed great gift new modeler Try local book shop Gibbs Smith Inc PO Box 667 Layton UT 84041 Its name Building Flying Indoor Model Airplanes Bill Hannan author Peanut Power Scrapbook Scale has done again Bills Scrapbook Scale No II out already Hannan fan oos time fading past timer used thing limit length engine run means loaded spring timer set start flight control scene Dethermalization yet Out Sight Losing Free Flights almost routine Lou Roberts 172 Model Aviation r TAPER ACETM Rib Profiler makes tapered eliptical wing design easy Works faster computer Adjusts locks size rib instantly Curve plates provided draw 3 different full symmetrical 3 different semi-symmetrical airfoils Flat bottom airfoils can also drawn Send check MO $2795 Jim Donaro 543 Bedford Street Concord MA 01742