Control Line NAVY CARRIER Dick Perry IVE BEEN INDULGING nostalgia trip past few dayscleaning Out old maga zines getting ready move did lot reading sorting cleaning rm afraid good old days really pretty good Engines have developed course coming epoxy cyanoacrylate glue plastics foam iron-on coverings have simplified speeded building little though flying has remained relatively unchanged Back 1950s RC-types flying tube sets escapements reedsControl Line king modeling Francisco Racing Fuel left peculiar odor around Speed circles Dooling McCoy engines did thing Ads Forster Johnson engines Berkeley kits tempted us Silk 59 yard 35-sized kits $4 Rev-Up props 35g Balsa almost free compared todays prices could join AMA $250 added liability coverage 1958quite bargain though Model Aviation far cry its present status Navy Carrier Landing called flown much today after introduction J Roberts three-line flight control system event has seen some significant changes over years Back 1950s class real engine limit practi cal onethe McCoy 60 powerful engine available easy find though expensive $40 Randalls showing up regularly winners circle Tony Nac carato Dave Wallick gaining experience Junior Senior ranks Scores running under 500 using original system scored speed three times difference between high low speed Highs 90s lows 30s prevalent 1 960s saw addition protective ramp stern deckshort landings little hard models previously Super tigre brought out ST 35 Combat engine would later develop standard Profile Carrier engine success Randall Tigercat its two Johnson 35 engines out board engine quit after high-speed run hard overcome single-engine models rule limit low-speed points engines out introduced Engines limited 65 cu displacement establishing upper limit have today As expanded two classes talking adding novice Carrier event complication scale outlines allowing simpler models flown CLCB Chairman Paul J Burke published editorial Model Aviation 1963 arguing againstsuchaproposal basis gadgets somewhat limited scale Carrier competition would dominate Continued page 140 September 1982 55 Paul Burke drew hypothetical Novice Carrier model 20 years ago before Profile Carrier event features seen todays Carrier models performance estimate closely matches best present Profile scores Variable line sweep Guardian can real challenge builder lines exit bottom wing Frank Kellys solution internal mechanism external guide recessed exit slot wing surface Frank Kelly smiles back frOm cockpit Class Guardian entire fuselage topfrom prop tailcan removed allow inspection repair adjustment OD naw ana ijoger owaros prepare uoos Liass ii uearcas Tor rilgns Buckeye AZ Regionals Uses OS 65RSR power Ted Kraver photo LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW M~SW K. MASrn IMPROVED THROUGH FOUR YEARS OF PRODUCTION THE G/F SERIES IS UNEQUALED FOR PERFORMANCE & DURABILITY AVAILABLE WORLDWIDE THROUGH 131 DISTRIBUTORS WINDSOR PROPELLER CO 384 Tesconi CtSanta Rosa CA 95401 PRESENTS BALSA STRIPPER A95 AT YOUR DEALER PRECISION STRIP WOOD TO S FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO 384 Tesconi Ct. Santa Rosa CA 95401 entire pattern interpretation confused actual pattern C Ms letter asked deal does reaUy work concerning tanks engines Firstly make no pretense being able explain two-cycle engine works Schnuerle engine designed physics involved fuel tank works Far knowledgeable modelers have written many articles subjects About Two-Cycle Engines Parts land II Glenn Lee Model Aviation January February 1979 Advantages Schnuerle Engines Mike Jab looski MAN September 1981 Fuel Tanks Stunt Bob Baron American Aircraft Modeler November 1974 Fuel Tanks Dave Rees Flying Models January1977 anyone will just have some homework subjects Dont expect handout may fortunate have very knowledgeable modeler area CM also asked about flap-to-elevator ratio Surprisingly enough one-to-one ratio George Aldrich published original Nobler article back 1952 still seems work best have theories advanced over years Bill Netzeband Al Rabe George Aldrich Bill Werwage Bob Gialdini some RC folks Bill Werwage Les McDonald two World Champions whofrom time time have used -flap-to-1-elevator hookups both have also great success old reliable 1-to-l hookup Recently more SSFs Serious Stunt Fliers building planes adjustable flap-elevator ratios adjustable travel flaps elevators years modelers just built nonadjustable setup simply because reliable method make things adjustable Too people suffered consequences early pushrod clevis failures Now reliable enduring control setups championed Bob Baron Robert McDonald Dennis Adamisin feature adjustable components starting catch around country course add variables flap/elevator settings flap/elevator throws rest pot along vrith propeller choice line length handle spacing tip weight leadout rake nose weight moment arm lengths engine offset may adding another 50 75 flights trimming procedure can blessing because still maintain fly better will Stunt competitor takes adjustable flib-flobs Morgan washers make get out burn up four gallons fuel will probably get better long run leam fly creation out end lines Oh yes its about Nationals time lets start gearing up annual Stunt orgy stock up Rolaids load up everything shop trip out Lincoln practice six nights week contact attorney about possible retribu tions above procedures lets go flying scores did get Profile event late 1960s however its popularity boomed early 1 970s scores risen about 100 points high low speeds both improved New namesSawicki Willman Bedard Herron Finley Ryktarsyk Simpson Wielmsappeared trophy lists Class II new set names appeared Profile well Carrier modelers decide whether fly Scale Class and/or Class II Profile Carrier Nats couldnt fly both Harry Higleys flying designs pointed way Profile event Aloise family Condor design ST 35 engines unbeatable three Nats 1974 through 1976 won Profile agecategory entered thing pre vented clean sweep didnt have anyone Senior-age category 1976 1970s saw formation Navy Carrier Advisory Committee Navy Car rier Society NCS Scores dropped 1976 present scoring system adopted Nats performance has relatively constant Class II since has consistent improvement Profile event engines flying techniques improved NCS originated Eugene Ely Award information Stunt orPA MPA contact1977 recognize best Carrier flier Wynn Paul 1640 Maywick Dr Lexington KYthree classes Nats Ron Duly first 40504recipient Winners since include Senior Louis Matustik NCS president Pete Mazur CL Carrier Perryperennial record-holder Dave Wallick Continued page 55Southwests prominent Carrier flier Bill Melton brings us up present ready new novice event hypothetical design haddevelopments new faces enjoying com features todays airplanes plus fewpanionship current competitors mem speeds projected 90 mph 10ones earlier times mph very close present top ProfileContinued page 149 Looking Hard Find Soaring LI7a c/or 7Aerncludesthose some moatGoodiesfl o has moat complete comprehensive line R/C Soaring productato ever exist orespected firms Europe well complete inventory own US manufacturers o We carrys complete line Kits Hardware Accessories & Building Supplies have full inventory Launching Equipment & Related Products o We serve serious R/C soaring enthusiast supplies kits other items have sought long Call write today Free product listing & price sheet Sailplane Factory PO Box 341 Red Lion PA 17356 717244-4508 9am 9pm EST 140 Model Aviation 3-FUNCTION ACCUETACH h LCD Tachometer w/dual scale 7 capability lox bOX tal Voltmeter with- br1565 checking/cycling TX/RX battery combos ACCIHAMI Monitor quick harging operation 7n95 prepaid NoSend creck money order no CODs AVIONKSSresidents 6% tax P0 Box 70956 Sunnyvale CA 94086 Consumers Unmatched Durability Design Simplicity Aircraft quality aluminum Anodized Finished Can set up type flying Direct Drive Tail Rotor No Tail Rotor Gear Box Manufactured USA Autorotation Extra Dealer Inquiries Welcome Horizon Model Crafts Inc 3625 E Lockwood Houston Texas 77026 Phone 71 4-R72-1 1 R9 have overlooked due failing memory incom plete records lack space Rest assured contributions appreciated us still enjoy Carrier events Richard L Perry 416 Wood/jill Dr Golds boro NC 27530 CL Speed/Hempel Continued page 57 duration 1880 means achiev ing higher hp French won team title Constant taking first French used 1880 exhaust duration AAC aluminum/ aluminum/chrome piston sleeve setup much work done pipes however since 1978 1981 Speed scene Europe having produced absolute speed Constant made fast flight 1980 has produced increase average speed Parramon Spain has consistently run over 268 kph 166 mph no small task has done lot pipe work well elegant flow studies seems important part success comparison US performances have whole lower league able run fairly consistently between 266-267 kph team trials relatively standard equip ment 1880 exhaust 1380 transfer ABC pistorV sleeve 1978 German-style pipe 304 mm lot fine tuning newcomer speeds may seem impossible probably wont obtained start possible lot hard thoughtful work As far engines go things brighter theyve forthe last few years new OPS 15 P&G Metal Products Rossi 15 Bills Miniature Engines Nelson 15 Kustom Kraftsmanship come line truly worldclass engines should produce competi tive speeds sufficient work area engine development feel work line done Parramon pipe modificationis very worthwhile since making up series experimental pipes lot easier average person building engines Combining work changes timing racing motorcycles using greater 2000 exhaust gives potentially time-efficient methods increasing horsepower propeller engine side system find prop listed Yellow Pages under efficiency lot guidelines working props recommendation find out what fast guys using start theory side begin definition prop efficiency 4 ETXVOO DxV P550hp P ne output power foot-pounds per second E Efficiency less 10 T thrust pounds output D force pounds V l speed feet per second hp Engine output horsepowerinput prop aid solution Equation 4 Figure 7 has plotted based upon experimental data taken props shaped unlike used present practice5- 6 Present practice also places pitch-to-diameter p/d ratio speed props between 85 10 Using p/d ratios Figure 7 find likely state-of-theart props have about 8 1% efficiency power coefficient Cp 006 September 1982 149 Over Two Years tense Flight Testing Approval Now Available $39900 thru 82 7Th Spinner Starting Ram Air Cooling Attractive Styling 60 Size Engine No Metric Hardware Spare Parts Availability TAPER ACE 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 $2495 Jim Denaro Model Products 543 Bedford Street Concord MA 01742 L
Edition: Model Aviation - 1982/09
Page Numbers: 55, 140, 149
Control Line NAVY CARRIER Dick Perry IVE BEEN INDULGING nostalgia trip past few dayscleaning Out old maga zines getting ready move did lot reading sorting cleaning rm afraid good old days really pretty good Engines have developed course coming epoxy cyanoacrylate glue plastics foam iron-on coverings have simplified speeded building little though flying has remained relatively unchanged Back 1950s RC-types flying tube sets escapements reedsControl Line king modeling Francisco Racing Fuel left peculiar odor around Speed circles Dooling McCoy engines did thing Ads Forster Johnson engines Berkeley kits tempted us Silk 59 yard 35-sized kits $4 Rev-Up props 35g Balsa almost free compared todays prices could join AMA $250 added liability coverage 1958quite bargain though Model Aviation far cry its present status Navy Carrier Landing called flown much today after introduction J Roberts three-line flight control system event has seen some significant changes over years Back 1950s class real engine limit practi cal onethe McCoy 60 powerful engine available easy find though expensive $40 Randalls showing up regularly winners circle Tony Nac carato Dave Wallick gaining experience Junior Senior ranks Scores running under 500 using original system scored speed three times difference between high low speed Highs 90s lows 30s prevalent 1 960s saw addition protective ramp stern deckshort landings little hard models previously Super tigre brought out ST 35 Combat engine would later develop standard Profile Carrier engine success Randall Tigercat its two Johnson 35 engines out board engine quit after high-speed run hard overcome single-engine models rule limit low-speed points engines out introduced Engines limited 65 cu displacement establishing upper limit have today As expanded two classes talking adding novice Carrier event complication scale outlines allowing simpler models flown CLCB Chairman Paul J Burke published editorial Model Aviation 1963 arguing againstsuchaproposal basis gadgets somewhat limited scale Carrier competition would dominate Continued page 140 September 1982 55 Paul Burke drew hypothetical Novice Carrier model 20 years ago before Profile Carrier event features seen todays Carrier models performance estimate closely matches best present Profile scores Variable line sweep Guardian can real challenge builder lines exit bottom wing Frank Kellys solution internal mechanism external guide recessed exit slot wing surface Frank Kelly smiles back frOm cockpit Class Guardian entire fuselage topfrom prop tailcan removed allow inspection repair adjustment OD naw ana ijoger owaros prepare uoos Liass ii uearcas Tor rilgns Buckeye AZ Regionals Uses OS 65RSR power Ted Kraver photo LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW M~SW K. MASrn IMPROVED THROUGH FOUR YEARS OF PRODUCTION THE G/F SERIES IS UNEQUALED FOR PERFORMANCE & DURABILITY AVAILABLE WORLDWIDE THROUGH 131 DISTRIBUTORS WINDSOR PROPELLER CO 384 Tesconi CtSanta Rosa CA 95401 PRESENTS BALSA STRIPPER A95 AT YOUR DEALER PRECISION STRIP WOOD TO S FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO 384 Tesconi Ct. Santa Rosa CA 95401 entire pattern interpretation confused actual pattern C Ms letter asked deal does reaUy work concerning tanks engines Firstly make no pretense being able explain two-cycle engine works Schnuerle engine designed physics involved fuel tank works Far knowledgeable modelers have written many articles subjects About Two-Cycle Engines Parts land II Glenn Lee Model Aviation January February 1979 Advantages Schnuerle Engines Mike Jab looski MAN September 1981 Fuel Tanks Stunt Bob Baron American Aircraft Modeler November 1974 Fuel Tanks Dave Rees Flying Models January1977 anyone will just have some homework subjects Dont expect handout may fortunate have very knowledgeable modeler area CM also asked about flap-to-elevator ratio Surprisingly enough one-to-one ratio George Aldrich published original Nobler article back 1952 still seems work best have theories advanced over years Bill Netzeband Al Rabe George Aldrich Bill Werwage Bob Gialdini some RC folks Bill Werwage Les McDonald two World Champions whofrom time time have used -flap-to-1-elevator hookups both have also great success old reliable 1-to-l hookup Recently more SSFs Serious Stunt Fliers building planes adjustable flap-elevator ratios adjustable travel flaps elevators years modelers just built nonadjustable setup simply because reliable method make things adjustable Too people suffered consequences early pushrod clevis failures Now reliable enduring control setups championed Bob Baron Robert McDonald Dennis Adamisin feature adjustable components starting catch around country course add variables flap/elevator settings flap/elevator throws rest pot along vrith propeller choice line length handle spacing tip weight leadout rake nose weight moment arm lengths engine offset may adding another 50 75 flights trimming procedure can blessing because still maintain fly better will Stunt competitor takes adjustable flib-flobs Morgan washers make get out burn up four gallons fuel will probably get better long run leam fly creation out end lines Oh yes its about Nationals time lets start gearing up annual Stunt orgy stock up Rolaids load up everything shop trip out Lincoln practice six nights week contact attorney about possible retribu tions above procedures lets go flying scores did get Profile event late 1960s however its popularity boomed early 1 970s scores risen about 100 points high low speeds both improved New namesSawicki Willman Bedard Herron Finley Ryktarsyk Simpson Wielmsappeared trophy lists Class II new set names appeared Profile well Carrier modelers decide whether fly Scale Class and/or Class II Profile Carrier Nats couldnt fly both Harry Higleys flying designs pointed way Profile event Aloise family Condor design ST 35 engines unbeatable three Nats 1974 through 1976 won Profile agecategory entered thing pre vented clean sweep didnt have anyone Senior-age category 1976 1970s saw formation Navy Carrier Advisory Committee Navy Car rier Society NCS Scores dropped 1976 present scoring system adopted Nats performance has relatively constant Class II since has consistent improvement Profile event engines flying techniques improved NCS originated Eugene Ely Award information Stunt orPA MPA contact1977 recognize best Carrier flier Wynn Paul 1640 Maywick Dr Lexington KYthree classes Nats Ron Duly first 40504recipient Winners since include Senior Louis Matustik NCS president Pete Mazur CL Carrier Perryperennial record-holder Dave Wallick Continued page 55Southwests prominent Carrier flier Bill Melton brings us up present ready new novice event hypothetical design haddevelopments new faces enjoying com features todays airplanes plus fewpanionship current competitors mem speeds projected 90 mph 10ones earlier times mph very close present top ProfileContinued page 149 Looking Hard Find Soaring LI7a c/or 7Aerncludesthose some moatGoodiesfl o has moat complete comprehensive line R/C Soaring productato ever exist orespected firms Europe well complete inventory own US manufacturers o We carrys complete line Kits Hardware Accessories & Building Supplies have full inventory Launching Equipment & Related Products o We serve serious R/C soaring enthusiast supplies kits other items have sought long Call write today Free product listing & price sheet Sailplane Factory PO Box 341 Red Lion PA 17356 717244-4508 9am 9pm EST 140 Model Aviation 3-FUNCTION ACCUETACH h LCD Tachometer w/dual scale 7 capability lox bOX tal Voltmeter with- br1565 checking/cycling TX/RX battery combos ACCIHAMI Monitor quick harging operation 7n95 prepaid NoSend creck money order no CODs AVIONKSSresidents 6% tax P0 Box 70956 Sunnyvale CA 94086 Consumers Unmatched Durability Design Simplicity Aircraft quality aluminum Anodized Finished Can set up type flying Direct Drive Tail Rotor No Tail Rotor Gear Box Manufactured USA Autorotation Extra Dealer Inquiries Welcome Horizon Model Crafts Inc 3625 E Lockwood Houston Texas 77026 Phone 71 4-R72-1 1 R9 have overlooked due failing memory incom plete records lack space Rest assured contributions appreciated us still enjoy Carrier events Richard L Perry 416 Wood/jill Dr Golds boro NC 27530 CL Speed/Hempel Continued page 57 duration 1880 means achiev ing higher hp French won team title Constant taking first French used 1880 exhaust duration AAC aluminum/ aluminum/chrome piston sleeve setup much work done pipes however since 1978 1981 Speed scene Europe having produced absolute speed Constant made fast flight 1980 has produced increase average speed Parramon Spain has consistently run over 268 kph 166 mph no small task has done lot pipe work well elegant flow studies seems important part success comparison US performances have whole lower league able run fairly consistently between 266-267 kph team trials relatively standard equip ment 1880 exhaust 1380 transfer ABC pistorV sleeve 1978 German-style pipe 304 mm lot fine tuning newcomer speeds may seem impossible probably wont obtained start possible lot hard thoughtful work As far engines go things brighter theyve forthe last few years new OPS 15 P&G Metal Products Rossi 15 Bills Miniature Engines Nelson 15 Kustom Kraftsmanship come line truly worldclass engines should produce competi tive speeds sufficient work area engine development feel work line done Parramon pipe modificationis very worthwhile since making up series experimental pipes lot easier average person building engines Combining work changes timing racing motorcycles using greater 2000 exhaust gives potentially time-efficient methods increasing horsepower propeller engine side system find prop listed Yellow Pages under efficiency lot guidelines working props recommendation find out what fast guys using start theory side begin definition prop efficiency 4 ETXVOO DxV P550hp P ne output power foot-pounds per second E Efficiency less 10 T thrust pounds output D force pounds V l speed feet per second hp Engine output horsepowerinput prop aid solution Equation 4 Figure 7 has plotted based upon experimental data taken props shaped unlike used present practice5- 6 Present practice also places pitch-to-diameter p/d ratio speed props between 85 10 Using p/d ratios Figure 7 find likely state-of-theart props have about 8 1% efficiency power coefficient Cp 006 September 1982 149 Over Two Years tense Flight Testing Approval Now Available $39900 thru 82 7Th Spinner Starting Ram Air Cooling Attractive Styling 60 Size Engine No Metric Hardware Spare Parts Availability TAPER ACE 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 $2495 Jim Denaro Model Products 543 Bedford Street Concord MA 01742 L
Edition: Model Aviation - 1982/09
Page Numbers: 55, 140, 149
Control Line NAVY CARRIER Dick Perry IVE BEEN INDULGING nostalgia trip past few dayscleaning Out old maga zines getting ready move did lot reading sorting cleaning rm afraid good old days really pretty good Engines have developed course coming epoxy cyanoacrylate glue plastics foam iron-on coverings have simplified speeded building little though flying has remained relatively unchanged Back 1950s RC-types flying tube sets escapements reedsControl Line king modeling Francisco Racing Fuel left peculiar odor around Speed circles Dooling McCoy engines did thing Ads Forster Johnson engines Berkeley kits tempted us Silk 59 yard 35-sized kits $4 Rev-Up props 35g Balsa almost free compared todays prices could join AMA $250 added liability coverage 1958quite bargain though Model Aviation far cry its present status Navy Carrier Landing called flown much today after introduction J Roberts three-line flight control system event has seen some significant changes over years Back 1950s class real engine limit practi cal onethe McCoy 60 powerful engine available easy find though expensive $40 Randalls showing up regularly winners circle Tony Nac carato Dave Wallick gaining experience Junior Senior ranks Scores running under 500 using original system scored speed three times difference between high low speed Highs 90s lows 30s prevalent 1 960s saw addition protective ramp stern deckshort landings little hard models previously Super tigre brought out ST 35 Combat engine would later develop standard Profile Carrier engine success Randall Tigercat its two Johnson 35 engines out board engine quit after high-speed run hard overcome single-engine models rule limit low-speed points engines out introduced Engines limited 65 cu displacement establishing upper limit have today As expanded two classes talking adding novice Carrier event complication scale outlines allowing simpler models flown CLCB Chairman Paul J Burke published editorial Model Aviation 1963 arguing againstsuchaproposal basis gadgets somewhat limited scale Carrier competition would dominate Continued page 140 September 1982 55 Paul Burke drew hypothetical Novice Carrier model 20 years ago before Profile Carrier event features seen todays Carrier models performance estimate closely matches best present Profile scores Variable line sweep Guardian can real challenge builder lines exit bottom wing Frank Kellys solution internal mechanism external guide recessed exit slot wing surface Frank Kelly smiles back frOm cockpit Class Guardian entire fuselage topfrom prop tailcan removed allow inspection repair adjustment OD naw ana ijoger owaros prepare uoos Liass ii uearcas Tor rilgns Buckeye AZ Regionals Uses OS 65RSR power Ted Kraver photo LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW M~SW K. MASrn IMPROVED THROUGH FOUR YEARS OF PRODUCTION THE G/F SERIES IS UNEQUALED FOR PERFORMANCE & DURABILITY AVAILABLE WORLDWIDE THROUGH 131 DISTRIBUTORS WINDSOR PROPELLER CO 384 Tesconi CtSanta Rosa CA 95401 PRESENTS BALSA STRIPPER A95 AT YOUR DEALER PRECISION STRIP WOOD TO S FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO 384 Tesconi Ct. Santa Rosa CA 95401 entire pattern interpretation confused actual pattern C Ms letter asked deal does reaUy work concerning tanks engines Firstly make no pretense being able explain two-cycle engine works Schnuerle engine designed physics involved fuel tank works Far knowledgeable modelers have written many articles subjects About Two-Cycle Engines Parts land II Glenn Lee Model Aviation January February 1979 Advantages Schnuerle Engines Mike Jab looski MAN September 1981 Fuel Tanks Stunt Bob Baron American Aircraft Modeler November 1974 Fuel Tanks Dave Rees Flying Models January1977 anyone will just have some homework subjects Dont expect handout may fortunate have very knowledgeable modeler area CM also asked about flap-to-elevator ratio Surprisingly enough one-to-one ratio George Aldrich published original Nobler article back 1952 still seems work best have theories advanced over years Bill Netzeband Al Rabe George Aldrich Bill Werwage Bob Gialdini some RC folks Bill Werwage Les McDonald two World Champions whofrom time time have used -flap-to-1-elevator hookups both have also great success old reliable 1-to-l hookup Recently more SSFs Serious Stunt Fliers building planes adjustable flap-elevator ratios adjustable travel flaps elevators years modelers just built nonadjustable setup simply because reliable method make things adjustable Too people suffered consequences early pushrod clevis failures Now reliable enduring control setups championed Bob Baron Robert McDonald Dennis Adamisin feature adjustable components starting catch around country course add variables flap/elevator settings flap/elevator throws rest pot along vrith propeller choice line length handle spacing tip weight leadout rake nose weight moment arm lengths engine offset may adding another 50 75 flights trimming procedure can blessing because still maintain fly better will Stunt competitor takes adjustable flib-flobs Morgan washers make get out burn up four gallons fuel will probably get better long run leam fly creation out end lines Oh yes its about Nationals time lets start gearing up annual Stunt orgy stock up Rolaids load up everything shop trip out Lincoln practice six nights week contact attorney about possible retribu tions above procedures lets go flying scores did get Profile event late 1960s however its popularity boomed early 1 970s scores risen about 100 points high low speeds both improved New namesSawicki Willman Bedard Herron Finley Ryktarsyk Simpson Wielmsappeared trophy lists Class II new set names appeared Profile well Carrier modelers decide whether fly Scale Class and/or Class II Profile Carrier Nats couldnt fly both Harry Higleys flying designs pointed way Profile event Aloise family Condor design ST 35 engines unbeatable three Nats 1974 through 1976 won Profile agecategory entered thing pre vented clean sweep didnt have anyone Senior-age category 1976 1970s saw formation Navy Carrier Advisory Committee Navy Car rier Society NCS Scores dropped 1976 present scoring system adopted Nats performance has relatively constant Class II since has consistent improvement Profile event engines flying techniques improved NCS originated Eugene Ely Award information Stunt orPA MPA contact1977 recognize best Carrier flier Wynn Paul 1640 Maywick Dr Lexington KYthree classes Nats Ron Duly first 40504recipient Winners since include Senior Louis Matustik NCS president Pete Mazur CL Carrier Perryperennial record-holder Dave Wallick Continued page 55Southwests prominent Carrier flier Bill Melton brings us up present ready new novice event hypothetical design haddevelopments new faces enjoying com features todays airplanes plus fewpanionship current competitors mem speeds projected 90 mph 10ones earlier times mph very close present top ProfileContinued page 149 Looking Hard Find Soaring LI7a c/or 7Aerncludesthose some moatGoodiesfl o has moat complete comprehensive line R/C Soaring productato ever exist orespected firms Europe well complete inventory own US manufacturers o We carrys complete line Kits Hardware Accessories & Building Supplies have full inventory Launching Equipment & Related Products o We serve serious R/C soaring enthusiast supplies kits other items have sought long Call write today Free product listing & price sheet Sailplane Factory PO Box 341 Red Lion PA 17356 717244-4508 9am 9pm EST 140 Model Aviation 3-FUNCTION ACCUETACH h LCD Tachometer w/dual scale 7 capability lox bOX tal Voltmeter with- br1565 checking/cycling TX/RX battery combos ACCIHAMI Monitor quick harging operation 7n95 prepaid NoSend creck money order no CODs AVIONKSSresidents 6% tax P0 Box 70956 Sunnyvale CA 94086 Consumers Unmatched Durability Design Simplicity Aircraft quality aluminum Anodized Finished Can set up type flying Direct Drive Tail Rotor No Tail Rotor Gear Box Manufactured USA Autorotation Extra Dealer Inquiries Welcome Horizon Model Crafts Inc 3625 E Lockwood Houston Texas 77026 Phone 71 4-R72-1 1 R9 have overlooked due failing memory incom plete records lack space Rest assured contributions appreciated us still enjoy Carrier events Richard L Perry 416 Wood/jill Dr Golds boro NC 27530 CL Speed/Hempel Continued page 57 duration 1880 means achiev ing higher hp French won team title Constant taking first French used 1880 exhaust duration AAC aluminum/ aluminum/chrome piston sleeve setup much work done pipes however since 1978 1981 Speed scene Europe having produced absolute speed Constant made fast flight 1980 has produced increase average speed Parramon Spain has consistently run over 268 kph 166 mph no small task has done lot pipe work well elegant flow studies seems important part success comparison US performances have whole lower league able run fairly consistently between 266-267 kph team trials relatively standard equip ment 1880 exhaust 1380 transfer ABC pistorV sleeve 1978 German-style pipe 304 mm lot fine tuning newcomer speeds may seem impossible probably wont obtained start possible lot hard thoughtful work As far engines go things brighter theyve forthe last few years new OPS 15 P&G Metal Products Rossi 15 Bills Miniature Engines Nelson 15 Kustom Kraftsmanship come line truly worldclass engines should produce competi tive speeds sufficient work area engine development feel work line done Parramon pipe modificationis very worthwhile since making up series experimental pipes lot easier average person building engines Combining work changes timing racing motorcycles using greater 2000 exhaust gives potentially time-efficient methods increasing horsepower propeller engine side system find prop listed Yellow Pages under efficiency lot guidelines working props recommendation find out what fast guys using start theory side begin definition prop efficiency 4 ETXVOO DxV P550hp P ne output power foot-pounds per second E Efficiency less 10 T thrust pounds output D force pounds V l speed feet per second hp Engine output horsepowerinput prop aid solution Equation 4 Figure 7 has plotted based upon experimental data taken props shaped unlike used present practice5- 6 Present practice also places pitch-to-diameter p/d ratio speed props between 85 10 Using p/d ratios Figure 7 find likely state-of-theart props have about 8 1% efficiency power coefficient Cp 006 September 1982 149 Over Two Years tense Flight Testing Approval Now Available $39900 thru 82 7Th Spinner Starting Ram Air Cooling Attractive Styling 60 Size Engine No Metric Hardware Spare Parts Availability TAPER ACE 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 $2495 Jim Denaro Model Products 543 Bedford Street Concord MA 01742 L