MYSTERY PLANE Edward Shrewsbury Ir ving TX winner Mystery Plane con test December issue Ed correctly identi fied plane Mitsubishi A7MI Reppu fighter Supermarine Type 508 Februarys Mystery Plane Its full-scale version pre decessor little different current stan dards lot ideas classified dumb viewed hindsight though werent bad ideas time Theyre considered silly af ter theyre tried found work idea behind Type 508 improve aircraft performance eliminating systems arent useful flight thereby saving weight space could used fuel payload British carried concept extreme eliminating landing gear idea launch carrier aircraft dolly means catapult dolly would remain ship reused after aircraft recovered Land ing accomplished rubber mat lubricated water British werent alone either US Navy tried out idea least landing part F9F Cougar Army used F-84 launched trailer Mystery Plane 0 0 C large jettisonable rocket motor problems moving aircraft after came rest mat well occasional pilot injuries put end program Most testing performed using normal air craft landed gear retracted SuperAn easy method fdr laying out airfoils case 12% thickness section 30/0 camber 1 Draw chord line proper length draw leading edge radius 11 times square thickness measure up chord line desired amount camber draw maximum camber line 2 maximum camber lirte mea sure up down half thickness draw maximum thickness lines 3 Use curve draw upper lower surfaces leading edge circle trailing edge chord line tangent maximum thickness lines 4 Voile Finished IQI tJ 0 Guess name Mystery Plane send Dick Perry address left Hell randomly select name correct en tries Some lucky winner will receive oneyear membership Navy Carrier Society marine built aircraft specifically con cept design proved rather good program abandoned com pany changed design add landing gear produce conventional carrier-based plane result Type 508 Ill return obscure experimental carrier aircraft futute columns month sub ject real operational carrier aircraft thing unusual about mystery plane lost its first bid production Avenger produced instead ended up being produced company other designed submissions correctly identify aircraft Ill select winner Continued page 166 68 Model Aviation Cono Line Navy Carrier Dick Perry 9009 Arley Dr Springfield VA 22153 John Hall competitor Nets Sportsman Cartier LTV F-B Crusader ZIZZE 6% 20 -z- &1ZIIL Crusaders all-moving stabilizer vis ible shot During sl6w flight wing cidence increased same full-scale Rick Humphries winner Senior Class Nats race-preparing NA A-5 Vigilante 1 cy Conversion $3500 Includes Crystals Certification Special Fast Turnaround Now Available CALL Send Large Self AddressedUPS US Mail Federal Express Used Envelope BrochuresMastercard Visa Accepted strength engine mounts reduce ef fects vibration profile model plate should roughly C -shaped mounted firmly model Paint department Some hardware stores still give away paint stirring sticks wooden yard sticks yardsticks make excellent hardwood wing spars paint stirring sticks make very good tail booms Fast Combat planes Bob also notes yardstick can work well measuring paint stirrers can used mixing paint Next month visit lumber nuts-andbolts departments Bob has also asked note anyone inter ested receiving Orbiting Eagles Newsletter yearly basis can sending name address AMA number $10 Orbiting Ea gles Newsletter 8147 Read Street Omaha NB 68122 Please send ideas commentsand especially photos CL Scale activityto address very top column CL Navy Carrier/Perry Continued page 68 years membership Navy Carrier Society Mail entries address shown byline Airfoil selection occasionally receive ques tions about airfoils best used Carrier models Unlike Free Flight Glider frater nity has considerable information air foil performance relatively low Reynolds numbers fly Carrier modelers have little experimental data guide us Most original information airfoil sections com piled National Advisory Committee Aeronautics NACA Reynolds numbers ap propriate full-size aircraft What little infor mation available airfoils interest us leads some general conclusions specific recommendations general guidelines use airfoils built-up wings should about 9-12% thick Solid wings should thinner thin 5% save weight should have round leading edges 11 times square thickness using NACA formula Thus 12%-thick airfoil should have leading edge radius 16% chord ie 12%-thick wing section 8tn chord would thick leading edge radius / Exact airfoil shapes critical long both upper lower surfaces have smooth con tours Ive found drafting curves good airfoil tables plotting sections Unless lot extra time effort go building pro cess finished wing section wont accu rate representation what planned Observation models used Carrier events will show Class Class 11 models use cambered airfoils Profile models use symmetrical sections some notableand highly successfulProfile excep tions Bill Meltons Guardian Harry Higleys Mo-Ho Carrier Pigeon Carlos Aloises Condor designs quite successful used cambered airfoils general cambered airfoil will have mini mum drag flying zero angle tack means line through leading trailing edges lined up airflow properly designed Carrier wing has just enough camber produce needed lift ti airplanes weight speed near ze incidence exact camber required will depend up weight wing area speed altitude temperatur flying height few other factors Fort nately airfoils tolerant small deviation minimum-drag section fairly consiste Carrier models Large light Profiles end spectrum small heas Class II ships other end Another factor consider drag can r duced lift smoothly drops zero ti1 cant happen rectangular wing constant airfoil section constant incidence works rather well wings change froi lifting sections root symmetrical sectior tip design wings tip syn metrical flying zero incidence di model its top speed Some people like fly close ma mum allowable height 20 ft can TI idea model flies smaller circle therefore earns greater high-speed scoreevi though actual speed same ata low height doesnt work energy consumed climbing greater height slows acceleratio extra lift required slows top speei increased lift depends upon speed model 20 ft requires 35 5 times lift model flying 5 ft typical Carrier mat el losses exceed anticipated gain froi flying shorter circle try fly height 5 ft try design m planes way too us mot comfortable flying about 10 ft heigh typical Profile would need root camber 2% typical Class II model would require root camber 3% numbers based o 166 Model Aviation Electric Flight f Controller Perfect 05 Motors 5-10 cells Has Brake2 month Lightweight 12 00money back Adjustable switching point Soidertess tenninal tor easy hookupguarantee ON/OFF Controller $2495 Power save weight 20 Size 22st3s63 Very high efficiency 006V loss Add 1100 fan skipping Cojifornia residents add 65% S163 Tao Send Check money order ComoooihIfHigh Sky Fntobaoosseetor ow3929 Kansas St #9 otheoooae7o5ijs seeSan DiegoCA 92104 Service Ace Cirrus EK Futaba Heathkit Hobbyshack JR KGL ___________________________________ K-Line KO Propo Kraft KSE Logitrol Novak Royal Tower Hobbies World Engines . Spectrum Analyzers CalIbrated Test Instruments Large Inventory R/C [ Parts- Crystals SMART LIGHT RC BATTERY VOLTAGE MONITOR FLY SAFE WITH SMART LIGHT TINY TESTERS Smart Light Moanto piano plugs-in betwean Recaivar Switch avaltahia mitt penal mount toggle switch Praclolon IC voitega detector niroult El-color LED Glows GREEN Flight pack Ia turned ON Battery Voltage greater 40 SOC RED Battery ieee 40 SOC Spacily flight pack/connector neu.roc FUTABA J G Seriac 405 Deane 3 pin FUTABAiIohhy Shank 3 ptn51O05 No ounnectore use yours 5 Smart LI0ht Switoh.ADD $000 gmart Light RC Battery TeeterlCycler $3500 checks Ilight hetlery olmuteted tiight loads Tiny Tester Adjoelahis Voltage Regulator $2400 7 20 Vdc input 45 55 Vdc 15 Amp output ilny Tester Cailitratlon Voltage $1550 00 ToO hattely input 5050 Odo output Send Check Money Order Add $3 Postage Hanuong PA Residents add 6% Sales Tax ZZ ENTERPRISES INC 631 MANCHESTER ROAD NORRISTOWN PA 19403 TELE 215539-7476 symmetrical tip airfoil described linear change camber root tip airfoil drawing process depicted drawings ac companying column 1990 Nats tentative schedule summers Nats will have Profile Thursday July 19 Class Class II Friday July 20 official schedule will appear near future Competition Newsletter section magazine Saturday Navy Carrier Society will sponsor 15 Carrier event Sig Manufacturing Company has offered sponsor Carrier event its new Skyray profile model As write column have rules available should appear Navy Car rier Society newsletter before issue MA published will send copy rules requests includes stamped en velope request Bill Calkins has volunteered run Carrier events Nats summer expect see ex cellent participation because central loca tion large event such Nats Carrier run efficiently lots help needed judging tim ing scoring processing pull testing Bill has asked anyone desiring assist him run ning Carrier write him PO Box 458 Sugar Grove IL 60554 call him 1-708/466-1531 1989 top performers Navy Carrier Society compiles listing top 10 Carrier fliers country year ranking based best single score sanctioned competi tion 1989 contest season finished Marc Warwashana top Profile Carrier score 3325 Pete Mazur finished top both Class Class II scores 3963 4438 respectively Petes Class II score current national record will have details model record flight upcoming June column Congratulations Marc Pete names appeared Top Ten roster 1989and good luck 1990 As read King Orange Southwest Regionals will history flying season rest country will just around corner hope see out Carrier circles 1990 CL Speed/Lee Continued page 69 14944 Fred Randell third 14475 14371 Ten entrants flew Speed fliers West Coast hadnt flown much Sport Speed seemed have low ho-hum opinion about class until saw us flying Nats think con verted few after saw fun having Flight after flight flown very few aborts bad runs other failures have children grandchildren need event get started competition try 21 Sport Speed easy fly profile models allowed can probably pick up used en gines boat modelers RC car racers Ill try cover class future column giving hints suggestions improve performance FAI Speed entirely different animal Few modelers have desire ability persever ance necessary work competitive world-class event takes much effort other pastimes have wait physical April 1990 167 4 Championship Design Outstanding4 Strong & Stable New Combat/Sportsae$L4 FastEasyAssembly Plane4 Hggh Performance Includes Complete Hardware ne Included Belicrank outs s 0 Hinges s & Nuts $100 catalog Prectszon Foam Wing Corescontrol-line combat specialtie 7036 717 5663810 3 760 Waltonville Road
Edition: Model Aviation - 1990/04
Page Numbers: 68, 166, 167
Edition: Model Aviation - 1990/04
Page Numbers: 68, 166, 167
MYSTERY PLANE Edward Shrewsbury Ir ving TX winner Mystery Plane con test December issue Ed correctly identi fied plane Mitsubishi A7MI Reppu fighter Supermarine Type 508 Februarys Mystery Plane Its full-scale version pre decessor little different current stan dards lot ideas classified dumb viewed hindsight though werent bad ideas time Theyre considered silly af ter theyre tried found work idea behind Type 508 improve aircraft performance eliminating systems arent useful flight thereby saving weight space could used fuel payload British carried concept extreme eliminating landing gear idea launch carrier aircraft dolly means catapult dolly would remain ship reused after aircraft recovered Land ing accomplished rubber mat lubricated water British werent alone either US Navy tried out idea least landing part F9F Cougar Army used F-84 launched trailer Mystery Plane 0 0 C large jettisonable rocket motor problems moving aircraft after came rest mat well occasional pilot injuries put end program Most testing performed using normal air craft landed gear retracted SuperAn easy method fdr laying out airfoils case 12% thickness section 30/0 camber 1 Draw chord line proper length draw leading edge radius 11 times square thickness measure up chord line desired amount camber draw maximum camber line 2 maximum camber lirte mea sure up down half thickness draw maximum thickness lines 3 Use curve draw upper lower surfaces leading edge circle trailing edge chord line tangent maximum thickness lines 4 Voile Finished IQI tJ 0 Guess name Mystery Plane send Dick Perry address left Hell randomly select name correct en tries Some lucky winner will receive oneyear membership Navy Carrier Society marine built aircraft specifically con cept design proved rather good program abandoned com pany changed design add landing gear produce conventional carrier-based plane result Type 508 Ill return obscure experimental carrier aircraft futute columns month sub ject real operational carrier aircraft thing unusual about mystery plane lost its first bid production Avenger produced instead ended up being produced company other designed submissions correctly identify aircraft Ill select winner Continued page 166 68 Model Aviation Cono Line Navy Carrier Dick Perry 9009 Arley Dr Springfield VA 22153 John Hall competitor Nets Sportsman Cartier LTV F-B Crusader ZIZZE 6% 20 -z- &1ZIIL Crusaders all-moving stabilizer vis ible shot During sl6w flight wing cidence increased same full-scale Rick Humphries winner Senior Class Nats race-preparing NA A-5 Vigilante 1 cy Conversion $3500 Includes Crystals Certification Special Fast Turnaround Now Available CALL Send Large Self AddressedUPS US Mail Federal Express Used Envelope BrochuresMastercard Visa Accepted strength engine mounts reduce ef fects vibration profile model plate should roughly C -shaped mounted firmly model Paint department Some hardware stores still give away paint stirring sticks wooden yard sticks yardsticks make excellent hardwood wing spars paint stirring sticks make very good tail booms Fast Combat planes Bob also notes yardstick can work well measuring paint stirrers can used mixing paint Next month visit lumber nuts-andbolts departments Bob has also asked note anyone inter ested receiving Orbiting Eagles Newsletter yearly basis can sending name address AMA number $10 Orbiting Ea gles Newsletter 8147 Read Street Omaha NB 68122 Please send ideas commentsand especially photos CL Scale activityto address very top column CL Navy Carrier/Perry Continued page 68 years membership Navy Carrier Society Mail entries address shown byline Airfoil selection occasionally receive ques tions about airfoils best used Carrier models Unlike Free Flight Glider frater nity has considerable information air foil performance relatively low Reynolds numbers fly Carrier modelers have little experimental data guide us Most original information airfoil sections com piled National Advisory Committee Aeronautics NACA Reynolds numbers ap propriate full-size aircraft What little infor mation available airfoils interest us leads some general conclusions specific recommendations general guidelines use airfoils built-up wings should about 9-12% thick Solid wings should thinner thin 5% save weight should have round leading edges 11 times square thickness using NACA formula Thus 12%-thick airfoil should have leading edge radius 16% chord ie 12%-thick wing section 8tn chord would thick leading edge radius / Exact airfoil shapes critical long both upper lower surfaces have smooth con tours Ive found drafting curves good airfoil tables plotting sections Unless lot extra time effort go building pro cess finished wing section wont accu rate representation what planned Observation models used Carrier events will show Class Class 11 models use cambered airfoils Profile models use symmetrical sections some notableand highly successfulProfile excep tions Bill Meltons Guardian Harry Higleys Mo-Ho Carrier Pigeon Carlos Aloises Condor designs quite successful used cambered airfoils general cambered airfoil will have mini mum drag flying zero angle tack means line through leading trailing edges lined up airflow properly designed Carrier wing has just enough camber produce needed lift ti airplanes weight speed near ze incidence exact camber required will depend up weight wing area speed altitude temperatur flying height few other factors Fort nately airfoils tolerant small deviation minimum-drag section fairly consiste Carrier models Large light Profiles end spectrum small heas Class II ships other end Another factor consider drag can r duced lift smoothly drops zero ti1 cant happen rectangular wing constant airfoil section constant incidence works rather well wings change froi lifting sections root symmetrical sectior tip design wings tip syn metrical flying zero incidence di model its top speed Some people like fly close ma mum allowable height 20 ft can TI idea model flies smaller circle therefore earns greater high-speed scoreevi though actual speed same ata low height doesnt work energy consumed climbing greater height slows acceleratio extra lift required slows top speei increased lift depends upon speed model 20 ft requires 35 5 times lift model flying 5 ft typical Carrier mat el losses exceed anticipated gain froi flying shorter circle try fly height 5 ft try design m planes way too us mot comfortable flying about 10 ft heigh typical Profile would need root camber 2% typical Class II model would require root camber 3% numbers based o 166 Model Aviation Electric Flight f Controller Perfect 05 Motors 5-10 cells Has Brake2 month Lightweight 12 00money back Adjustable switching point Soidertess tenninal tor easy hookupguarantee ON/OFF Controller $2495 Power save weight 20 Size 22st3s63 Very high efficiency 006V loss Add 1100 fan skipping Cojifornia residents add 65% S163 Tao Send Check money order ComoooihIfHigh Sky Fntobaoosseetor ow3929 Kansas St #9 otheoooae7o5ijs seeSan DiegoCA 92104 Service Ace Cirrus EK Futaba Heathkit Hobbyshack JR KGL ___________________________________ K-Line KO Propo Kraft KSE Logitrol Novak Royal Tower Hobbies World Engines . Spectrum Analyzers CalIbrated Test Instruments Large Inventory R/C [ Parts- Crystals SMART LIGHT RC BATTERY VOLTAGE MONITOR FLY SAFE WITH SMART LIGHT TINY TESTERS Smart Light Moanto piano plugs-in betwean Recaivar Switch avaltahia mitt penal mount toggle switch Praclolon IC voitega detector niroult El-color LED Glows GREEN Flight pack Ia turned ON Battery Voltage greater 40 SOC RED Battery ieee 40 SOC Spacily flight pack/connector neu.roc FUTABA J G Seriac 405 Deane 3 pin FUTABAiIohhy Shank 3 ptn51O05 No ounnectore use yours 5 Smart LI0ht Switoh.ADD $000 gmart Light RC Battery TeeterlCycler $3500 checks Ilight hetlery olmuteted tiight loads Tiny Tester Adjoelahis Voltage Regulator $2400 7 20 Vdc input 45 55 Vdc 15 Amp output ilny Tester Cailitratlon Voltage $1550 00 ToO hattely input 5050 Odo output Send Check Money Order Add $3 Postage Hanuong PA Residents add 6% Sales Tax ZZ ENTERPRISES INC 631 MANCHESTER ROAD NORRISTOWN PA 19403 TELE 215539-7476 symmetrical tip airfoil described linear change camber root tip airfoil drawing process depicted drawings ac companying column 1990 Nats tentative schedule summers Nats will have Profile Thursday July 19 Class Class II Friday July 20 official schedule will appear near future Competition Newsletter section magazine Saturday Navy Carrier Society will sponsor 15 Carrier event Sig Manufacturing Company has offered sponsor Carrier event its new Skyray profile model As write column have rules available should appear Navy Car rier Society newsletter before issue MA published will send copy rules requests includes stamped en velope request Bill Calkins has volunteered run Carrier events Nats summer expect see ex cellent participation because central loca tion large event such Nats Carrier run efficiently lots help needed judging tim ing scoring processing pull testing Bill has asked anyone desiring assist him run ning Carrier write him PO Box 458 Sugar Grove IL 60554 call him 1-708/466-1531 1989 top performers Navy Carrier Society compiles listing top 10 Carrier fliers country year ranking based best single score sanctioned competi tion 1989 contest season finished Marc Warwashana top Profile Carrier score 3325 Pete Mazur finished top both Class Class II scores 3963 4438 respectively Petes Class II score current national record will have details model record flight upcoming June column Congratulations Marc Pete names appeared Top Ten roster 1989and good luck 1990 As read King Orange Southwest Regionals will history flying season rest country will just around corner hope see out Carrier circles 1990 CL Speed/Lee Continued page 69 14944 Fred Randell third 14475 14371 Ten entrants flew Speed fliers West Coast hadnt flown much Sport Speed seemed have low ho-hum opinion about class until saw us flying Nats think con verted few after saw fun having Flight after flight flown very few aborts bad runs other failures have children grandchildren need event get started competition try 21 Sport Speed easy fly profile models allowed can probably pick up used en gines boat modelers RC car racers Ill try cover class future column giving hints suggestions improve performance FAI Speed entirely different animal Few modelers have desire ability persever ance necessary work competitive world-class event takes much effort other pastimes have wait physical April 1990 167 4 Championship Design Outstanding4 Strong & Stable New Combat/Sportsae$L4 FastEasyAssembly Plane4 Hggh Performance Includes Complete Hardware ne Included Belicrank outs s 0 Hinges s & Nuts $100 catalog Prectszon Foam Wing Corescontrol-line combat specialtie 7036 717 5663810 3 760 Waltonville Road
Edition: Model Aviation - 1990/04
Page Numbers: 68, 166, 167
MYSTERY PLANE Edward Shrewsbury Ir ving TX winner Mystery Plane con test December issue Ed correctly identi fied plane Mitsubishi A7MI Reppu fighter Supermarine Type 508 Februarys Mystery Plane Its full-scale version pre decessor little different current stan dards lot ideas classified dumb viewed hindsight though werent bad ideas time Theyre considered silly af ter theyre tried found work idea behind Type 508 improve aircraft performance eliminating systems arent useful flight thereby saving weight space could used fuel payload British carried concept extreme eliminating landing gear idea launch carrier aircraft dolly means catapult dolly would remain ship reused after aircraft recovered Land ing accomplished rubber mat lubricated water British werent alone either US Navy tried out idea least landing part F9F Cougar Army used F-84 launched trailer Mystery Plane 0 0 C large jettisonable rocket motor problems moving aircraft after came rest mat well occasional pilot injuries put end program Most testing performed using normal air craft landed gear retracted SuperAn easy method fdr laying out airfoils case 12% thickness section 30/0 camber 1 Draw chord line proper length draw leading edge radius 11 times square thickness measure up chord line desired amount camber draw maximum camber line 2 maximum camber lirte mea sure up down half thickness draw maximum thickness lines 3 Use curve draw upper lower surfaces leading edge circle trailing edge chord line tangent maximum thickness lines 4 Voile Finished IQI tJ 0 Guess name Mystery Plane send Dick Perry address left Hell randomly select name correct en tries Some lucky winner will receive oneyear membership Navy Carrier Society marine built aircraft specifically con cept design proved rather good program abandoned com pany changed design add landing gear produce conventional carrier-based plane result Type 508 Ill return obscure experimental carrier aircraft futute columns month sub ject real operational carrier aircraft thing unusual about mystery plane lost its first bid production Avenger produced instead ended up being produced company other designed submissions correctly identify aircraft Ill select winner Continued page 166 68 Model Aviation Cono Line Navy Carrier Dick Perry 9009 Arley Dr Springfield VA 22153 John Hall competitor Nets Sportsman Cartier LTV F-B Crusader ZIZZE 6% 20 -z- &1ZIIL Crusaders all-moving stabilizer vis ible shot During sl6w flight wing cidence increased same full-scale Rick Humphries winner Senior Class Nats race-preparing NA A-5 Vigilante 1 cy Conversion $3500 Includes Crystals Certification Special Fast Turnaround Now Available CALL Send Large Self AddressedUPS US Mail Federal Express Used Envelope BrochuresMastercard Visa Accepted strength engine mounts reduce ef fects vibration profile model plate should roughly C -shaped mounted firmly model Paint department Some hardware stores still give away paint stirring sticks wooden yard sticks yardsticks make excellent hardwood wing spars paint stirring sticks make very good tail booms Fast Combat planes Bob also notes yardstick can work well measuring paint stirrers can used mixing paint Next month visit lumber nuts-andbolts departments Bob has also asked note anyone inter ested receiving Orbiting Eagles Newsletter yearly basis can sending name address AMA number $10 Orbiting Ea gles Newsletter 8147 Read Street Omaha NB 68122 Please send ideas commentsand especially photos CL Scale activityto address very top column CL Navy Carrier/Perry Continued page 68 years membership Navy Carrier Society Mail entries address shown byline Airfoil selection occasionally receive ques tions about airfoils best used Carrier models Unlike Free Flight Glider frater nity has considerable information air foil performance relatively low Reynolds numbers fly Carrier modelers have little experimental data guide us Most original information airfoil sections com piled National Advisory Committee Aeronautics NACA Reynolds numbers ap propriate full-size aircraft What little infor mation available airfoils interest us leads some general conclusions specific recommendations general guidelines use airfoils built-up wings should about 9-12% thick Solid wings should thinner thin 5% save weight should have round leading edges 11 times square thickness using NACA formula Thus 12%-thick airfoil should have leading edge radius 16% chord ie 12%-thick wing section 8tn chord would thick leading edge radius / Exact airfoil shapes critical long both upper lower surfaces have smooth con tours Ive found drafting curves good airfoil tables plotting sections Unless lot extra time effort go building pro cess finished wing section wont accu rate representation what planned Observation models used Carrier events will show Class Class 11 models use cambered airfoils Profile models use symmetrical sections some notableand highly successfulProfile excep tions Bill Meltons Guardian Harry Higleys Mo-Ho Carrier Pigeon Carlos Aloises Condor designs quite successful used cambered airfoils general cambered airfoil will have mini mum drag flying zero angle tack means line through leading trailing edges lined up airflow properly designed Carrier wing has just enough camber produce needed lift ti airplanes weight speed near ze incidence exact camber required will depend up weight wing area speed altitude temperatur flying height few other factors Fort nately airfoils tolerant small deviation minimum-drag section fairly consiste Carrier models Large light Profiles end spectrum small heas Class II ships other end Another factor consider drag can r duced lift smoothly drops zero ti1 cant happen rectangular wing constant airfoil section constant incidence works rather well wings change froi lifting sections root symmetrical sectior tip design wings tip syn metrical flying zero incidence di model its top speed Some people like fly close ma mum allowable height 20 ft can TI idea model flies smaller circle therefore earns greater high-speed scoreevi though actual speed same ata low height doesnt work energy consumed climbing greater height slows acceleratio extra lift required slows top speei increased lift depends upon speed model 20 ft requires 35 5 times lift model flying 5 ft typical Carrier mat el losses exceed anticipated gain froi flying shorter circle try fly height 5 ft try design m planes way too us mot comfortable flying about 10 ft heigh typical Profile would need root camber 2% typical Class II model would require root camber 3% numbers based o 166 Model Aviation Electric Flight f Controller Perfect 05 Motors 5-10 cells Has Brake2 month Lightweight 12 00money back Adjustable switching point Soidertess tenninal tor easy hookupguarantee ON/OFF Controller $2495 Power save weight 20 Size 22st3s63 Very high efficiency 006V loss Add 1100 fan skipping Cojifornia residents add 65% S163 Tao Send Check money order ComoooihIfHigh Sky Fntobaoosseetor ow3929 Kansas St #9 otheoooae7o5ijs seeSan DiegoCA 92104 Service Ace Cirrus EK Futaba Heathkit Hobbyshack JR KGL ___________________________________ K-Line KO Propo Kraft KSE Logitrol Novak Royal Tower Hobbies World Engines . Spectrum Analyzers CalIbrated Test Instruments Large Inventory R/C [ Parts- Crystals SMART LIGHT RC BATTERY VOLTAGE MONITOR FLY SAFE WITH SMART LIGHT TINY TESTERS Smart Light Moanto piano plugs-in betwean Recaivar Switch avaltahia mitt penal mount toggle switch Praclolon IC voitega detector niroult El-color LED Glows GREEN Flight pack Ia turned ON Battery Voltage greater 40 SOC RED Battery ieee 40 SOC Spacily flight pack/connector neu.roc FUTABA J G Seriac 405 Deane 3 pin FUTABAiIohhy Shank 3 ptn51O05 No ounnectore use yours 5 Smart LI0ht Switoh.ADD $000 gmart Light RC Battery TeeterlCycler $3500 checks Ilight hetlery olmuteted tiight loads Tiny Tester Adjoelahis Voltage Regulator $2400 7 20 Vdc input 45 55 Vdc 15 Amp output ilny Tester Cailitratlon Voltage $1550 00 ToO hattely input 5050 Odo output Send Check Money Order Add $3 Postage Hanuong PA Residents add 6% Sales Tax ZZ ENTERPRISES INC 631 MANCHESTER ROAD NORRISTOWN PA 19403 TELE 215539-7476 symmetrical tip airfoil described linear change camber root tip airfoil drawing process depicted drawings ac companying column 1990 Nats tentative schedule summers Nats will have Profile Thursday July 19 Class Class II Friday July 20 official schedule will appear near future Competition Newsletter section magazine Saturday Navy Carrier Society will sponsor 15 Carrier event Sig Manufacturing Company has offered sponsor Carrier event its new Skyray profile model As write column have rules available should appear Navy Car rier Society newsletter before issue MA published will send copy rules requests includes stamped en velope request Bill Calkins has volunteered run Carrier events Nats summer expect see ex cellent participation because central loca tion large event such Nats Carrier run efficiently lots help needed judging tim ing scoring processing pull testing Bill has asked anyone desiring assist him run ning Carrier write him PO Box 458 Sugar Grove IL 60554 call him 1-708/466-1531 1989 top performers Navy Carrier Society compiles listing top 10 Carrier fliers country year ranking based best single score sanctioned competi tion 1989 contest season finished Marc Warwashana top Profile Carrier score 3325 Pete Mazur finished top both Class Class II scores 3963 4438 respectively Petes Class II score current national record will have details model record flight upcoming June column Congratulations Marc Pete names appeared Top Ten roster 1989and good luck 1990 As read King Orange Southwest Regionals will history flying season rest country will just around corner hope see out Carrier circles 1990 CL Speed/Lee Continued page 69 14944 Fred Randell third 14475 14371 Ten entrants flew Speed fliers West Coast hadnt flown much Sport Speed seemed have low ho-hum opinion about class until saw us flying Nats think con verted few after saw fun having Flight after flight flown very few aborts bad runs other failures have children grandchildren need event get started competition try 21 Sport Speed easy fly profile models allowed can probably pick up used en gines boat modelers RC car racers Ill try cover class future column giving hints suggestions improve performance FAI Speed entirely different animal Few modelers have desire ability persever ance necessary work competitive world-class event takes much effort other pastimes have wait physical April 1990 167 4 Championship Design Outstanding4 Strong & Stable New Combat/Sportsae$L4 FastEasyAssembly Plane4 Hggh Performance Includes Complete Hardware ne Included Belicrank outs s 0 Hinges s & Nuts $100 catalog Prectszon Foam Wing Corescontrol-line combat specialtie 7036 717 5663810 3 760 Waltonville Road
