Free Flight. Du ration Bob Meu ser TEN-MINUTE Manhattan three years since Manhattan Formula made its big comeback after lying dormant decade John Triolo has made quite name himself event So came no surprise July became first break 10-minute barrier flight 1025 during practice session Lakehurst first Lakehurst contest Manhattan Formula models month later John won flight 1043 drawing already obsolete Incidentally 10 contestants entered 34 flights over seven min utes quite change few years ago seven-minute flight considered about tops Compared earlier model Model viat ion January 1977 appearance has improved quite bit motor length increased 12 14 inches got within few feet top big hangar Lakehurst wing position has moved back inch CG now about 50% giving model better longitudinal stability slight negative incidence angle stabilizer bit left-thrust down-thrust prop diameter 14 pitch 22 formed 025-inch sheet has about 1/16 camber blades mere 1-5/16 wide squarish tips spar projects about 2 blades slightly ahead blade centerline probably doesnt flare greatly higher pitch under initial torque 19-inch ioop 090-inch newPirelli wound 1800 turns makes go Wing offset indicated sketch -inch right model flies left Wing spars Johns earlier model fairly hard 1/16 sq balsa rounded off tapered toward tips presume new model similar official New York rules Manhat tan Formula presented June issue read carefully before de cide build Note wood bracing wing stab allowed Nominations Are Now Order Two fact Ten Models Year Free Flight Hall Fame National Free Flight Society has instituted Free Flight Hall Fame order give due recognition have made outstanding contributions free flight model aviation following considerations apply nominees Scientific developments directly attrib utable model airplane developments b Designs have led trend followed c Sportsmanship rapport field d Individuals have coagulated concepts designs edited down written word understood average modeler e Nominees must known handful modelers Model Year awards made models have made outstanding record competition represent outstanding achievement some sort Special awards often made things other models Rossi engine Old-Timer movement example Think over too long Gather information can regard ing nominees have little way documentation send nomination anyhow Hall Fame nominations due January 31 Model Year nominations January 1 Send nominations both An thony J Italiano 1655 Revere Drive Brookfield WI 53005 letter writing isnt bag give Tony phone call Home 414 782-6256 Office 414 762-7000 Thermal Detector What passes ther mal detector sport really just air-temperature measuring device changes air temperature pretty good indication thermal activity Greg Thomas 6829 Sheridan Ave S Richfield Minnesota 55423 sells complete tripod $9750 $4850 elec tronics package Postage packing insurance add another $6 $3 re spectively thermistor sensing element sits atop 20-foot telescoping fiberglass fishing pole Full range meter scale corresponds temperature change 275 F Minneapolis MAC Newsletter John OLeary Editor Book Review Aerofoils Aeromod ellers Martyn Pressnell Pitman Pub lishing Corp author knows onions over 12 years Handley Page involved design Jetstream founded lead group built pedal-powered Toucan currently Senior Lecturer Aeronaut ical Engineering Hatfield Polytech nic England experienced successful competition free flight modeler book contains scads airfoil draw ingswell get momentbut preceding chapters especially note worthy introductory chapter contains excellent summary wings work low-Reynolds-number regime free-fighters live effects aspect ratio wing planform induced drag lift distributionI got few surprises latterand some examples 48 Model Aviation often free-flight models judged appearance Ken Wernickes beautiful Wakefield rub ber-powered model took second place Southwest Modelers Show Photo Walt Roselle winding stooge marketed CIIE Hobbies just thing anchoring big Mulvihill models rubber being wound Photograph Roger Michael performance calculations follows short section wing construction tech niques followed photo section covering phases modeling emphasis free flight comes airfoils 83 pages airfoil drawn computer various chord lengths covering range appropriate type model airfoil best suited typically 3 8 inches about dozen chord lengths foil addition regular drawings some foils presented skimmed form slice uniform thickness removed both top bottom surfaces represent actual rib shapes sheeted wings employing cap strips ribs Finally index airfoils also lists kinds models airfoil best suited Somewhat disappointing lack airfoil coordinates other sources perhaps author felt space would have occupied could spent better purpose computer did nice job fairing surfaces point point except leading edge airfoils represented having point 1 SVYSC1APEQ 1 First* iomw. McLnkczttclfl 1025 JuLy 19T8 would have required little effort struct computer fair specified nose radius known reasonable shape point nose radius unspecified book presented 8 X 11 LA\ inch format half inch 207 pages thickness paper bound lacquer-finished cover classy job throughout would worthwhile addition aeromodelers Continued page 107 January 1979 49 ZZ2 10 ZOQ obt2 toLo 10 -L U I 2202E 7 L NITI inermai DOICCIOF Dy i59 numas wu text Meter box detaches tripod mount means Velcro strips Meter powered standard 9V transistor battery C 4tST MO AL ONLY $1095 DU-BRO PRODUCTS INCORPORATED 480 BONNER ROAD WAUCONDA ILL 60084 RO FYi FUEL PUMP NEW CONCEPT IN FUEL PUMPS ONLY ONE MOVING PART ING TO BREAK OR WEAR OUT LIGHT COMPACT AND RUGGED ONLY2WIDEAND 2-7/8 INDIA HAND OPERA TED AND REVER SIBLE S IN AND OUT HIGH VOLUME FLOW PUMP COMES ASSEMBLED AND MOUNTS ON GALLON CANS QUICK EASY INSTALLATION PUMP COMES COMPLETE WITH STEEL MOUNTING BRACKETS HARDWARE AND FUEL TUBING No191 eleventh US rode Jim Rich monds exceptional World Champion per formance garner second-place team award defending World Champion Bud Romak distinguished himself plac ing strong second first contest have seen very long time fortunes bad weather did influence outcome fliers new personal high times Japanese moved tenth place 1976 fourth year Swiss lacking third mem ber challenge team cup have steadily progressed since 1974 initia tion three 37-minute flights imagine what might have done pigeon bombings Jim Richmond last won World Championship 1968 Lets hope doesnt limit once decade FF Duration/Meuser continued page 49 library especially free-fighters Winding Stooge Etc CHE Hobbies has recently introduced stooge hold rubber-power models Mulvihills Wakefields down Constructed almost entirely 6061-T6 structural grade aluminum alloy has such nifty features aircraft-type quick release pins secure back stays head place foam padded model support shelf drive ground first remove top end secured quick-release pin insert its place plug distrib utes load hammer blows Tom Cashman writing Batsheet says isnt quite up contending rock studded soil Harts Lake Prairie drives piece /2-inch steel rod ground simply slips stooge tube over U-shaped head will ac cept models having rear peg tubes long 2 inches Some deep-bellied old-timers might fit distance cross pin bottom channel 11/4 inches price $2550 postpaid CHE Hobbies 10900 Eastwood Ave Inglewood CA 90304 CHE has several hundred other items free fighters including torquemeters rubber winders nitrate dope circle-tow hooks 1/64-sq 1/32-sq turbulator stock Japanese tissue Seelig timers Cox engines customized Kustom Krafts manship Bartels props about free flight competition kit business including old-timers stamped selfaddressed envelope will bring com plete list Anyone Free Flight Want get started free fight eh sonny Keep simple inexpensive go rubber power No use fussing little toys Wakefield Better count two models just case pair chem-milled motor tubes will run about $15 two ball-bearing front-end units will run $18 pair prop hubs about $4 About $25 worth balsa tissue dope wire miscellaneous tid bits should Youll need about three pounds rubber $26 Bob Piserchios winders $100 torquemeter $20 winding stooge $25 thermal detector will come handy $100 retrieval aids Binoculars good enough avoid instant eyestrain will run minimum $35 good compass about $13 youll need motorcycle should able get passable used trail bike about $250 fly danger setting fires fuses wont couple DT timers will run about $17 Lets see comes $648 Whats Cant afford Going look something less expensive like RC OK sonny just blew ex cuse needing motorcycle Bob Meuser 4200 Gregory St. Oak land CA 94619 FF Indoor/Tenny continued page 50 Plan Ahead Most experienced fliers fairly adept getting initial aerodynamic setups models sometimes extra adjustments needed last minute Especially critical top performance combination wing January 1979 107
Edition: Model Aviation - 1979/01
Page Numbers: 48, 49, 107
Free Flight. Du ration Bob Meu ser TEN-MINUTE Manhattan three years since Manhattan Formula made its big comeback after lying dormant decade John Triolo has made quite name himself event So came no surprise July became first break 10-minute barrier flight 1025 during practice session Lakehurst first Lakehurst contest Manhattan Formula models month later John won flight 1043 drawing already obsolete Incidentally 10 contestants entered 34 flights over seven min utes quite change few years ago seven-minute flight considered about tops Compared earlier model Model viat ion January 1977 appearance has improved quite bit motor length increased 12 14 inches got within few feet top big hangar Lakehurst wing position has moved back inch CG now about 50% giving model better longitudinal stability slight negative incidence angle stabilizer bit left-thrust down-thrust prop diameter 14 pitch 22 formed 025-inch sheet has about 1/16 camber blades mere 1-5/16 wide squarish tips spar projects about 2 blades slightly ahead blade centerline probably doesnt flare greatly higher pitch under initial torque 19-inch ioop 090-inch newPirelli wound 1800 turns makes go Wing offset indicated sketch -inch right model flies left Wing spars Johns earlier model fairly hard 1/16 sq balsa rounded off tapered toward tips presume new model similar official New York rules Manhat tan Formula presented June issue read carefully before de cide build Note wood bracing wing stab allowed Nominations Are Now Order Two fact Ten Models Year Free Flight Hall Fame National Free Flight Society has instituted Free Flight Hall Fame order give due recognition have made outstanding contributions free flight model aviation following considerations apply nominees Scientific developments directly attrib utable model airplane developments b Designs have led trend followed c Sportsmanship rapport field d Individuals have coagulated concepts designs edited down written word understood average modeler e Nominees must known handful modelers Model Year awards made models have made outstanding record competition represent outstanding achievement some sort Special awards often made things other models Rossi engine Old-Timer movement example Think over too long Gather information can regard ing nominees have little way documentation send nomination anyhow Hall Fame nominations due January 31 Model Year nominations January 1 Send nominations both An thony J Italiano 1655 Revere Drive Brookfield WI 53005 letter writing isnt bag give Tony phone call Home 414 782-6256 Office 414 762-7000 Thermal Detector What passes ther mal detector sport really just air-temperature measuring device changes air temperature pretty good indication thermal activity Greg Thomas 6829 Sheridan Ave S Richfield Minnesota 55423 sells complete tripod $9750 $4850 elec tronics package Postage packing insurance add another $6 $3 re spectively thermistor sensing element sits atop 20-foot telescoping fiberglass fishing pole Full range meter scale corresponds temperature change 275 F Minneapolis MAC Newsletter John OLeary Editor Book Review Aerofoils Aeromod ellers Martyn Pressnell Pitman Pub lishing Corp author knows onions over 12 years Handley Page involved design Jetstream founded lead group built pedal-powered Toucan currently Senior Lecturer Aeronaut ical Engineering Hatfield Polytech nic England experienced successful competition free flight modeler book contains scads airfoil draw ingswell get momentbut preceding chapters especially note worthy introductory chapter contains excellent summary wings work low-Reynolds-number regime free-fighters live effects aspect ratio wing planform induced drag lift distributionI got few surprises latterand some examples 48 Model Aviation often free-flight models judged appearance Ken Wernickes beautiful Wakefield rub ber-powered model took second place Southwest Modelers Show Photo Walt Roselle winding stooge marketed CIIE Hobbies just thing anchoring big Mulvihill models rubber being wound Photograph Roger Michael performance calculations follows short section wing construction tech niques followed photo section covering phases modeling emphasis free flight comes airfoils 83 pages airfoil drawn computer various chord lengths covering range appropriate type model airfoil best suited typically 3 8 inches about dozen chord lengths foil addition regular drawings some foils presented skimmed form slice uniform thickness removed both top bottom surfaces represent actual rib shapes sheeted wings employing cap strips ribs Finally index airfoils also lists kinds models airfoil best suited Somewhat disappointing lack airfoil coordinates other sources perhaps author felt space would have occupied could spent better purpose computer did nice job fairing surfaces point point except leading edge airfoils represented having point 1 SVYSC1APEQ 1 First* iomw. McLnkczttclfl 1025 JuLy 19T8 would have required little effort struct computer fair specified nose radius known reasonable shape point nose radius unspecified book presented 8 X 11 LA\ inch format half inch 207 pages thickness paper bound lacquer-finished cover classy job throughout would worthwhile addition aeromodelers Continued page 107 January 1979 49 ZZ2 10 ZOQ obt2 toLo 10 -L U I 2202E 7 L NITI inermai DOICCIOF Dy i59 numas wu text Meter box detaches tripod mount means Velcro strips Meter powered standard 9V transistor battery C 4tST MO AL ONLY $1095 DU-BRO PRODUCTS INCORPORATED 480 BONNER ROAD WAUCONDA ILL 60084 RO FYi FUEL PUMP NEW CONCEPT IN FUEL PUMPS ONLY ONE MOVING PART ING TO BREAK OR WEAR OUT LIGHT COMPACT AND RUGGED ONLY2WIDEAND 2-7/8 INDIA HAND OPERA TED AND REVER SIBLE S IN AND OUT HIGH VOLUME FLOW PUMP COMES ASSEMBLED AND MOUNTS ON GALLON CANS QUICK EASY INSTALLATION PUMP COMES COMPLETE WITH STEEL MOUNTING BRACKETS HARDWARE AND FUEL TUBING No191 eleventh US rode Jim Rich monds exceptional World Champion per formance garner second-place team award defending World Champion Bud Romak distinguished himself plac ing strong second first contest have seen very long time fortunes bad weather did influence outcome fliers new personal high times Japanese moved tenth place 1976 fourth year Swiss lacking third mem ber challenge team cup have steadily progressed since 1974 initia tion three 37-minute flights imagine what might have done pigeon bombings Jim Richmond last won World Championship 1968 Lets hope doesnt limit once decade FF Duration/Meuser continued page 49 library especially free-fighters Winding Stooge Etc CHE Hobbies has recently introduced stooge hold rubber-power models Mulvihills Wakefields down Constructed almost entirely 6061-T6 structural grade aluminum alloy has such nifty features aircraft-type quick release pins secure back stays head place foam padded model support shelf drive ground first remove top end secured quick-release pin insert its place plug distrib utes load hammer blows Tom Cashman writing Batsheet says isnt quite up contending rock studded soil Harts Lake Prairie drives piece /2-inch steel rod ground simply slips stooge tube over U-shaped head will ac cept models having rear peg tubes long 2 inches Some deep-bellied old-timers might fit distance cross pin bottom channel 11/4 inches price $2550 postpaid CHE Hobbies 10900 Eastwood Ave Inglewood CA 90304 CHE has several hundred other items free fighters including torquemeters rubber winders nitrate dope circle-tow hooks 1/64-sq 1/32-sq turbulator stock Japanese tissue Seelig timers Cox engines customized Kustom Krafts manship Bartels props about free flight competition kit business including old-timers stamped selfaddressed envelope will bring com plete list Anyone Free Flight Want get started free fight eh sonny Keep simple inexpensive go rubber power No use fussing little toys Wakefield Better count two models just case pair chem-milled motor tubes will run about $15 two ball-bearing front-end units will run $18 pair prop hubs about $4 About $25 worth balsa tissue dope wire miscellaneous tid bits should Youll need about three pounds rubber $26 Bob Piserchios winders $100 torquemeter $20 winding stooge $25 thermal detector will come handy $100 retrieval aids Binoculars good enough avoid instant eyestrain will run minimum $35 good compass about $13 youll need motorcycle should able get passable used trail bike about $250 fly danger setting fires fuses wont couple DT timers will run about $17 Lets see comes $648 Whats Cant afford Going look something less expensive like RC OK sonny just blew ex cuse needing motorcycle Bob Meuser 4200 Gregory St. Oak land CA 94619 FF Indoor/Tenny continued page 50 Plan Ahead Most experienced fliers fairly adept getting initial aerodynamic setups models sometimes extra adjustments needed last minute Especially critical top performance combination wing January 1979 107
Edition: Model Aviation - 1979/01
Page Numbers: 48, 49, 107
Free Flight. Du ration Bob Meu ser TEN-MINUTE Manhattan three years since Manhattan Formula made its big comeback after lying dormant decade John Triolo has made quite name himself event So came no surprise July became first break 10-minute barrier flight 1025 during practice session Lakehurst first Lakehurst contest Manhattan Formula models month later John won flight 1043 drawing already obsolete Incidentally 10 contestants entered 34 flights over seven min utes quite change few years ago seven-minute flight considered about tops Compared earlier model Model viat ion January 1977 appearance has improved quite bit motor length increased 12 14 inches got within few feet top big hangar Lakehurst wing position has moved back inch CG now about 50% giving model better longitudinal stability slight negative incidence angle stabilizer bit left-thrust down-thrust prop diameter 14 pitch 22 formed 025-inch sheet has about 1/16 camber blades mere 1-5/16 wide squarish tips spar projects about 2 blades slightly ahead blade centerline probably doesnt flare greatly higher pitch under initial torque 19-inch ioop 090-inch newPirelli wound 1800 turns makes go Wing offset indicated sketch -inch right model flies left Wing spars Johns earlier model fairly hard 1/16 sq balsa rounded off tapered toward tips presume new model similar official New York rules Manhat tan Formula presented June issue read carefully before de cide build Note wood bracing wing stab allowed Nominations Are Now Order Two fact Ten Models Year Free Flight Hall Fame National Free Flight Society has instituted Free Flight Hall Fame order give due recognition have made outstanding contributions free flight model aviation following considerations apply nominees Scientific developments directly attrib utable model airplane developments b Designs have led trend followed c Sportsmanship rapport field d Individuals have coagulated concepts designs edited down written word understood average modeler e Nominees must known handful modelers Model Year awards made models have made outstanding record competition represent outstanding achievement some sort Special awards often made things other models Rossi engine Old-Timer movement example Think over too long Gather information can regard ing nominees have little way documentation send nomination anyhow Hall Fame nominations due January 31 Model Year nominations January 1 Send nominations both An thony J Italiano 1655 Revere Drive Brookfield WI 53005 letter writing isnt bag give Tony phone call Home 414 782-6256 Office 414 762-7000 Thermal Detector What passes ther mal detector sport really just air-temperature measuring device changes air temperature pretty good indication thermal activity Greg Thomas 6829 Sheridan Ave S Richfield Minnesota 55423 sells complete tripod $9750 $4850 elec tronics package Postage packing insurance add another $6 $3 re spectively thermistor sensing element sits atop 20-foot telescoping fiberglass fishing pole Full range meter scale corresponds temperature change 275 F Minneapolis MAC Newsletter John OLeary Editor Book Review Aerofoils Aeromod ellers Martyn Pressnell Pitman Pub lishing Corp author knows onions over 12 years Handley Page involved design Jetstream founded lead group built pedal-powered Toucan currently Senior Lecturer Aeronaut ical Engineering Hatfield Polytech nic England experienced successful competition free flight modeler book contains scads airfoil draw ingswell get momentbut preceding chapters especially note worthy introductory chapter contains excellent summary wings work low-Reynolds-number regime free-fighters live effects aspect ratio wing planform induced drag lift distributionI got few surprises latterand some examples 48 Model Aviation often free-flight models judged appearance Ken Wernickes beautiful Wakefield rub ber-powered model took second place Southwest Modelers Show Photo Walt Roselle winding stooge marketed CIIE Hobbies just thing anchoring big Mulvihill models rubber being wound Photograph Roger Michael performance calculations follows short section wing construction tech niques followed photo section covering phases modeling emphasis free flight comes airfoils 83 pages airfoil drawn computer various chord lengths covering range appropriate type model airfoil best suited typically 3 8 inches about dozen chord lengths foil addition regular drawings some foils presented skimmed form slice uniform thickness removed both top bottom surfaces represent actual rib shapes sheeted wings employing cap strips ribs Finally index airfoils also lists kinds models airfoil best suited Somewhat disappointing lack airfoil coordinates other sources perhaps author felt space would have occupied could spent better purpose computer did nice job fairing surfaces point point except leading edge airfoils represented having point 1 SVYSC1APEQ 1 First* iomw. McLnkczttclfl 1025 JuLy 19T8 would have required little effort struct computer fair specified nose radius known reasonable shape point nose radius unspecified book presented 8 X 11 LA\ inch format half inch 207 pages thickness paper bound lacquer-finished cover classy job throughout would worthwhile addition aeromodelers Continued page 107 January 1979 49 ZZ2 10 ZOQ obt2 toLo 10 -L U I 2202E 7 L NITI inermai DOICCIOF Dy i59 numas wu text Meter box detaches tripod mount means Velcro strips Meter powered standard 9V transistor battery C 4tST MO AL ONLY $1095 DU-BRO PRODUCTS INCORPORATED 480 BONNER ROAD WAUCONDA ILL 60084 RO FYi FUEL PUMP NEW CONCEPT IN FUEL PUMPS ONLY ONE MOVING PART ING TO BREAK OR WEAR OUT LIGHT COMPACT AND RUGGED ONLY2WIDEAND 2-7/8 INDIA HAND OPERA TED AND REVER SIBLE S IN AND OUT HIGH VOLUME FLOW PUMP COMES ASSEMBLED AND MOUNTS ON GALLON CANS QUICK EASY INSTALLATION PUMP COMES COMPLETE WITH STEEL MOUNTING BRACKETS HARDWARE AND FUEL TUBING No191 eleventh US rode Jim Rich monds exceptional World Champion per formance garner second-place team award defending World Champion Bud Romak distinguished himself plac ing strong second first contest have seen very long time fortunes bad weather did influence outcome fliers new personal high times Japanese moved tenth place 1976 fourth year Swiss lacking third mem ber challenge team cup have steadily progressed since 1974 initia tion three 37-minute flights imagine what might have done pigeon bombings Jim Richmond last won World Championship 1968 Lets hope doesnt limit once decade FF Duration/Meuser continued page 49 library especially free-fighters Winding Stooge Etc CHE Hobbies has recently introduced stooge hold rubber-power models Mulvihills Wakefields down Constructed almost entirely 6061-T6 structural grade aluminum alloy has such nifty features aircraft-type quick release pins secure back stays head place foam padded model support shelf drive ground first remove top end secured quick-release pin insert its place plug distrib utes load hammer blows Tom Cashman writing Batsheet says isnt quite up contending rock studded soil Harts Lake Prairie drives piece /2-inch steel rod ground simply slips stooge tube over U-shaped head will ac cept models having rear peg tubes long 2 inches Some deep-bellied old-timers might fit distance cross pin bottom channel 11/4 inches price $2550 postpaid CHE Hobbies 10900 Eastwood Ave Inglewood CA 90304 CHE has several hundred other items free fighters including torquemeters rubber winders nitrate dope circle-tow hooks 1/64-sq 1/32-sq turbulator stock Japanese tissue Seelig timers Cox engines customized Kustom Krafts manship Bartels props about free flight competition kit business including old-timers stamped selfaddressed envelope will bring com plete list Anyone Free Flight Want get started free fight eh sonny Keep simple inexpensive go rubber power No use fussing little toys Wakefield Better count two models just case pair chem-milled motor tubes will run about $15 two ball-bearing front-end units will run $18 pair prop hubs about $4 About $25 worth balsa tissue dope wire miscellaneous tid bits should Youll need about three pounds rubber $26 Bob Piserchios winders $100 torquemeter $20 winding stooge $25 thermal detector will come handy $100 retrieval aids Binoculars good enough avoid instant eyestrain will run minimum $35 good compass about $13 youll need motorcycle should able get passable used trail bike about $250 fly danger setting fires fuses wont couple DT timers will run about $17 Lets see comes $648 Whats Cant afford Going look something less expensive like RC OK sonny just blew ex cuse needing motorcycle Bob Meuser 4200 Gregory St. Oak land CA 94619 FF Indoor/Tenny continued page 50 Plan Ahead Most experienced fliers fairly adept getting initial aerodynamic setups models sometimes extra adjustments needed last minute Especially critical top performance combination wing January 1979 107