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Radio Control: Old-Timers

Author: Dr. D.B. Mathews


Edition: Model Aviation - 1989/08
Page Numbers: 52, 53, 143

UNIQUE EXPERIENCE Ive writing column nearly II years now Ive always sent manuscript MA editorial offices three five weeks before deadline Thats trick learned long ago college Get paper early youll invariably get better grade Well month decided differently held off writing until previous June 1989 issue arrived printer con cerned about June article would look print pleased layout thank ful editor knocked off some rough edges made sing better certainly felt subject matter made interesting col umn too Most us interest model matters pre-WW II era content recreate designs time frame found Elwin Lindsley actually restoring model over 50 years old Ive seen sort dedication authenticity Antique Classic aircraft classifications big EAA Oshkosh fly-in always felt deep respect restorers first encounter same sort effort modeling Heres story illustrate restorers dedica tion years ago Oshkosh stumbled onto beautiful yellow Curtiss Robin ever seen visiting father son restored used able personal sort thing Oshkosh before grew huge noticed planes likenew axle caps complete famous Curtiss logo asked earth did find new brass castings like replied couldnt find anyso sandcast new ones gone library read thing could find subject taught themselves develop patterns pour molds looked inside Robin saw newlooking wicker seats Yep Theyd followed same path recreated originals admire respect sort dedicated ef fort dont Has point made Youre invited read above whatever wish Ralph Beck historian Most us will never have opportunity restore 50-year-old model airplane can around can have chance closely recreate model designs time photos month clearly illustrate Ralph Becks masterful craftsmanship deep sense history Douglas Hardware project Ralphs model powered non-Surpass old-style 05 90 four-stroker since prudently 52 Model Aviation Rado Control Old-timers Dr DB Mathews 909 N Maize Rd Townhouse 734 Wichita KS 67212 1 Ross Thomas Santa Ann CA Bowden-designed PLW-4 low-wing reported its flying qualities improved reducing dihedral bears family resemblance Mallard Ralph Beck Beloit WI built new Douglas Hardware model see Docs column June 1989 issue flies farm Power OS 90 four-stroke master craftsman attested bare bones photo Look pieces wing Love transporter m Chose risk effort potentially un reliable Loutrell its look-alike GHQ Other wise accurate historically astute recrea tion Look pieces structure readers have ever built Cleveland Stinson Gullwing big did teenager wing ribs built up similar fashion seems like spent entire 16th year life building wing ribs Ralph Flwin Ill just have say have earned utmost respect model builder has read last two columns Old-Timers ailerons 16-plus years Ive sticking radios Old-Timers Ive advised strongly against placing ailerons highly dihedraled wings addition ailerons usually produces nothing severe yaw try use themand requires copious amounts opposite rudder counteract pretty much universally accepted fact right Well comes Charles Beck Ralphs brother Freeport IL some photos Red Zephyr ran three-view March 1979 column ailerons added Ill darned doesnt document good flying qualities good rolling ability Charles did reduce original dihedral mere six inches uses no differential travel no gap seals employs % up down travel has CU located normal 33% chord have no explanationonly astonishment Ive seen Super Buccaneer nearly zero di hedral fly ailerons has reader experience other Old-Timer flying rolling ailerons Im wondering might some phenomenon peculiar Red Zephyr Mallard stuff Dr Gerald Butler writes response Bowden Mallard writeup April 89 issue 1984 saw plans Spitfirelooking Mallard built display 1985 Toledo show found drawings very vague areas model supposedly Continued page 143 DISTRIBUTED BY LED waiazza 7660 Son Gobriol Rood codero CA 93422 4661717 Ike take le8ecand8 t Up Shelters sturdy stee ~ OOSSW E LIP Id She05terpaIe partsto tr p over N NO roP0* tofe onvOurvI fl eture C roreft gturdy fade reeiet8flt led Blue nylon top 351 LJP % Idi5ANEYOO odd Leisure ProduCt Ltd MAA 3287AMA 85800ad poad John peck 115061 WILHAMS ACCESSORIES 4 PILOTS STANDARD TSMAN 0 RACING TAR VINTAGE TH CONTOUR BALLOON EN AGE 4 ENGINES PRATT & WHITNEY HT HONE August 1989 53 George M Niebauer Las Vegas NV built 02 Replica-size Douglas Hardware FF just cant keep good design down eh $975AVAILABLE AT AMERICAS$525 FINEST HOBBY SHOPS AN~ PARTS T & WHITNEY HONE SPANDAU BELLUM RC Giant Scale/de Vries Continued page 139 produced triple plan celebrate 10th year fine Scale model designing busi ness latest drawing permits building long-wing J-3 Cub 127-in span clippedwing Cub 102-in span Super Cub Accessories cowls bent gears etc available Wendell 1041 Heatherwood Lane Orrville OH 667 phone 1-216682-8896 also has some neat Giant Scale 60-in Edo float drawings Fly safelywell meet next month RC Old-Timers/Mathews Continued page 53 built flown several long phone conver sations John Pond reference docu mentation used prepare drawings finally revealed source enlarge ment small drawings Col Bowdens book Petrol Engine Aircraft wrote late Ben Buckle England put problem before readers Aeromodeller column received several replies including Tony Perihall longtime Bowden fan After considerable research have both now concluded reason no pho tos other documentation exist Mallard simple model never constructed Bowden did build subsequent low-winged model called Gulla much-simplified versionbut absolutely nothing indi cate Mallard ever built flown spring 1985 flew Mallard would turn received very little damage since no idea plane flew poorly hung up two years 1987 took bull horns rebuilt wing dihedral doesnt look nice now does fly fairly well still no sport plane flown local SAM 41 contests danger getting type wild let ter exchange Ken Willard set off several years ago downwind turn thing Ive gotta ad mit Im getting lost Bowden designs April 89 column speculated turn problems Mouse Blue Dragon designs likely associated too much di edral seemed supported letter Ross Thomas citing tendency PLW 4 another Bowden low-wing design become spirally unstable thermal subsequent Improvement situation reduction dihedral SAM does allow Now Dr Butler comes along improves Mallard increasing dihedral dunno Kick around next two months meantime Enjoy RC Helicopters/Jolly Continued page 54 Concept 30 distributed America Great Planes Model Distributors also han dles OS Max engines So unlike Hirobo Shut tle Concept 30 distributed 05 32 FSRH 05 28 FSRH Kyosho selected design engines Concept Great Planes has done excellent job promoting its new little Helicopter Because diligent work its excellent reputation distributor Great Planes has insured Concept 30 will very successful available model shops Great Planes has supplied Concept 30 kit testing received yesterday have time assemble task should take about four hours did open box checked out contents though Concept comes packed foam shipping container much same condition Hirobos Shuttle about 80% assembled Looking over Concept 30 reveals pure Kyosho beautifully molded parts fit well Kyosho has prepared excellent instruction manual obvi ously aimed novice itself will go long way toward flying success Since havent assembled Concept yet Id like save comments until next month However would like state Kyo sho Taya should congratulated ef forts highly competitive 30-size class Concept 30 very viable machine showing great strides design production techniques Id also like thank Great Planes making Concept 30 available both So dont tune next month well see what Concept 30 like assemble fly BCNU RC Pylon Racing/Hager Continued page 55 Wow guess what Jerry Small Brian raced other As luck would have Brian cut race trying catch Jerry turned 11000 smoke cleared Bruce Richmond Jerry Small tied first place Brian fast waswas still third place just point down Well flyoff first place both flamed out Jerry ended up winning first Formula race ever best time Boy What great contest Ft Worth Thunderbirds results Sunday 1 Jerry Smallll0t9 2 Bruce Richmondl 1457 two tied result de cided fast time 3 Brian Richmond 10591 4 Randy Ritchl1803 two tied result decided fast time 5 Rich Tocci 11702 6 JP Hanwayl1331 7 Dub Jett 10963 8 Norm Johnsonl1702 9 Ed Ran kinl1433 10 Red Cranfilll1632 21 entries Two new racers showed up contest Bob Miller Roger Shaller look forward seeing two future Now its West Virginia report RC Pylon Racing Al Ritch Back November Tn-State Flyers ftom Huntington WV Mountaineers Flying Hillbillies clubs Charleston WV area completed fourth year Q-25 Pylon Racing fly Q500-type airplanes usually ScatCats powered 05 25 FSRs past permitted use modified engines including some OS 25 VF-DFs 1988 required engines strictly stock use stock muffler 9 x 4 Master Airscrew propeller club-supplied 25 %-nitro fuel changes made attempt tract newcomers Racing reducing cost equipment slowing airplanes down SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S & 09S ALL CUS TOM & STOCK PARTS VAILABLEINDIVIDUALL V COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF FUEL TUBING FOUR BRANDS OF GLOW PLUGS HARD-TO-FIND HA RD WA RE OLD TIMER SUPPLIES COILS CONDENSERS NGK & STITT SPARK PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5& 7LOOP 1/4RUBBER BANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOY SR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES C YANOA CR YLA TES & EPOXIES ORDER DY MAIL OR PHONE 619 728-4395 SORRY NO C OD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPFINO LING FEE $150 FOR INSURANCE ADO $100 STOCK ORDERS SHIPPED WITHIN 24 HRS A monthly publication covering International RO Soaring Scene US $17 yr 21/yr IsIClass] Canada/MexIco $22/yr US funds Asia&Pacific S28/yr USfunds Europe UK $28/yr USfunds Surface Mail Foreign $18/yr US funds RO SOARING DIGEST PO Box 1079 Payson AZ 85547 August 1989 143 JUH HV-UI INVMILItfT VERAGES OVER 9000 PROPS III IMMEDIATE SHIPMENT ON VISA/MC

Author: Dr. D.B. Mathews


Edition: Model Aviation - 1989/08
Page Numbers: 52, 53, 143

UNIQUE EXPERIENCE Ive writing column nearly II years now Ive always sent manuscript MA editorial offices three five weeks before deadline Thats trick learned long ago college Get paper early youll invariably get better grade Well month decided differently held off writing until previous June 1989 issue arrived printer con cerned about June article would look print pleased layout thank ful editor knocked off some rough edges made sing better certainly felt subject matter made interesting col umn too Most us interest model matters pre-WW II era content recreate designs time frame found Elwin Lindsley actually restoring model over 50 years old Ive seen sort dedication authenticity Antique Classic aircraft classifications big EAA Oshkosh fly-in always felt deep respect restorers first encounter same sort effort modeling Heres story illustrate restorers dedica tion years ago Oshkosh stumbled onto beautiful yellow Curtiss Robin ever seen visiting father son restored used able personal sort thing Oshkosh before grew huge noticed planes likenew axle caps complete famous Curtiss logo asked earth did find new brass castings like replied couldnt find anyso sandcast new ones gone library read thing could find subject taught themselves develop patterns pour molds looked inside Robin saw newlooking wicker seats Yep Theyd followed same path recreated originals admire respect sort dedicated ef fort dont Has point made Youre invited read above whatever wish Ralph Beck historian Most us will never have opportunity restore 50-year-old model airplane can around can have chance closely recreate model designs time photos month clearly illustrate Ralph Becks masterful craftsmanship deep sense history Douglas Hardware project Ralphs model powered non-Surpass old-style 05 90 four-stroker since prudently 52 Model Aviation Rado Control Old-timers Dr DB Mathews 909 N Maize Rd Townhouse 734 Wichita KS 67212 1 Ross Thomas Santa Ann CA Bowden-designed PLW-4 low-wing reported its flying qualities improved reducing dihedral bears family resemblance Mallard Ralph Beck Beloit WI built new Douglas Hardware model see Docs column June 1989 issue flies farm Power OS 90 four-stroke master craftsman attested bare bones photo Look pieces wing Love transporter m Chose risk effort potentially un reliable Loutrell its look-alike GHQ Other wise accurate historically astute recrea tion Look pieces structure readers have ever built Cleveland Stinson Gullwing big did teenager wing ribs built up similar fashion seems like spent entire 16th year life building wing ribs Ralph Flwin Ill just have say have earned utmost respect model builder has read last two columns Old-Timers ailerons 16-plus years Ive sticking radios Old-Timers Ive advised strongly against placing ailerons highly dihedraled wings addition ailerons usually produces nothing severe yaw try use themand requires copious amounts opposite rudder counteract pretty much universally accepted fact right Well comes Charles Beck Ralphs brother Freeport IL some photos Red Zephyr ran three-view March 1979 column ailerons added Ill darned doesnt document good flying qualities good rolling ability Charles did reduce original dihedral mere six inches uses no differential travel no gap seals employs % up down travel has CU located normal 33% chord have no explanationonly astonishment Ive seen Super Buccaneer nearly zero di hedral fly ailerons has reader experience other Old-Timer flying rolling ailerons Im wondering might some phenomenon peculiar Red Zephyr Mallard stuff Dr Gerald Butler writes response Bowden Mallard writeup April 89 issue 1984 saw plans Spitfirelooking Mallard built display 1985 Toledo show found drawings very vague areas model supposedly Continued page 143 DISTRIBUTED BY LED waiazza 7660 Son Gobriol Rood codero CA 93422 4661717 Ike take le8ecand8 t Up Shelters sturdy stee ~ OOSSW E LIP Id She05terpaIe partsto tr p over N NO roP0* tofe onvOurvI fl eture C roreft gturdy fade reeiet8flt led Blue nylon top 351 LJP % Idi5ANEYOO odd Leisure ProduCt Ltd MAA 3287AMA 85800ad poad John peck 115061 WILHAMS ACCESSORIES 4 PILOTS STANDARD TSMAN 0 RACING TAR VINTAGE TH CONTOUR BALLOON EN AGE 4 ENGINES PRATT & WHITNEY HT HONE August 1989 53 George M Niebauer Las Vegas NV built 02 Replica-size Douglas Hardware FF just cant keep good design down eh $975AVAILABLE AT AMERICAS$525 FINEST HOBBY SHOPS AN~ PARTS T & WHITNEY HONE SPANDAU BELLUM RC Giant Scale/de Vries Continued page 139 produced triple plan celebrate 10th year fine Scale model designing busi ness latest drawing permits building long-wing J-3 Cub 127-in span clippedwing Cub 102-in span Super Cub Accessories cowls bent gears etc available Wendell 1041 Heatherwood Lane Orrville OH 667 phone 1-216682-8896 also has some neat Giant Scale 60-in Edo float drawings Fly safelywell meet next month RC Old-Timers/Mathews Continued page 53 built flown several long phone conver sations John Pond reference docu mentation used prepare drawings finally revealed source enlarge ment small drawings Col Bowdens book Petrol Engine Aircraft wrote late Ben Buckle England put problem before readers Aeromodeller column received several replies including Tony Perihall longtime Bowden fan After considerable research have both now concluded reason no pho tos other documentation exist Mallard simple model never constructed Bowden did build subsequent low-winged model called Gulla much-simplified versionbut absolutely nothing indi cate Mallard ever built flown spring 1985 flew Mallard would turn received very little damage since no idea plane flew poorly hung up two years 1987 took bull horns rebuilt wing dihedral doesnt look nice now does fly fairly well still no sport plane flown local SAM 41 contests danger getting type wild let ter exchange Ken Willard set off several years ago downwind turn thing Ive gotta ad mit Im getting lost Bowden designs April 89 column speculated turn problems Mouse Blue Dragon designs likely associated too much di edral seemed supported letter Ross Thomas citing tendency PLW 4 another Bowden low-wing design become spirally unstable thermal subsequent Improvement situation reduction dihedral SAM does allow Now Dr Butler comes along improves Mallard increasing dihedral dunno Kick around next two months meantime Enjoy RC Helicopters/Jolly Continued page 54 Concept 30 distributed America Great Planes Model Distributors also han dles OS Max engines So unlike Hirobo Shut tle Concept 30 distributed 05 32 FSRH 05 28 FSRH Kyosho selected design engines Concept Great Planes has done excellent job promoting its new little Helicopter Because diligent work its excellent reputation distributor Great Planes has insured Concept 30 will very successful available model shops Great Planes has supplied Concept 30 kit testing received yesterday have time assemble task should take about four hours did open box checked out contents though Concept comes packed foam shipping container much same condition Hirobos Shuttle about 80% assembled Looking over Concept 30 reveals pure Kyosho beautifully molded parts fit well Kyosho has prepared excellent instruction manual obvi ously aimed novice itself will go long way toward flying success Since havent assembled Concept yet Id like save comments until next month However would like state Kyo sho Taya should congratulated ef forts highly competitive 30-size class Concept 30 very viable machine showing great strides design production techniques Id also like thank Great Planes making Concept 30 available both So dont tune next month well see what Concept 30 like assemble fly BCNU RC Pylon Racing/Hager Continued page 55 Wow guess what Jerry Small Brian raced other As luck would have Brian cut race trying catch Jerry turned 11000 smoke cleared Bruce Richmond Jerry Small tied first place Brian fast waswas still third place just point down Well flyoff first place both flamed out Jerry ended up winning first Formula race ever best time Boy What great contest Ft Worth Thunderbirds results Sunday 1 Jerry Smallll0t9 2 Bruce Richmondl 1457 two tied result de cided fast time 3 Brian Richmond 10591 4 Randy Ritchl1803 two tied result decided fast time 5 Rich Tocci 11702 6 JP Hanwayl1331 7 Dub Jett 10963 8 Norm Johnsonl1702 9 Ed Ran kinl1433 10 Red Cranfilll1632 21 entries Two new racers showed up contest Bob Miller Roger Shaller look forward seeing two future Now its West Virginia report RC Pylon Racing Al Ritch Back November Tn-State Flyers ftom Huntington WV Mountaineers Flying Hillbillies clubs Charleston WV area completed fourth year Q-25 Pylon Racing fly Q500-type airplanes usually ScatCats powered 05 25 FSRs past permitted use modified engines including some OS 25 VF-DFs 1988 required engines strictly stock use stock muffler 9 x 4 Master Airscrew propeller club-supplied 25 %-nitro fuel changes made attempt tract newcomers Racing reducing cost equipment slowing airplanes down SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S & 09S ALL CUS TOM & STOCK PARTS VAILABLEINDIVIDUALL V COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF FUEL TUBING FOUR BRANDS OF GLOW PLUGS HARD-TO-FIND HA RD WA RE OLD TIMER SUPPLIES COILS CONDENSERS NGK & STITT SPARK PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5& 7LOOP 1/4RUBBER BANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOY SR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES C YANOA CR YLA TES & EPOXIES ORDER DY MAIL OR PHONE 619 728-4395 SORRY NO C OD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPFINO LING FEE $150 FOR INSURANCE ADO $100 STOCK ORDERS SHIPPED WITHIN 24 HRS A monthly publication covering International RO Soaring Scene US $17 yr 21/yr IsIClass] Canada/MexIco $22/yr US funds Asia&Pacific S28/yr USfunds Europe UK $28/yr USfunds Surface Mail Foreign $18/yr US funds RO SOARING DIGEST PO Box 1079 Payson AZ 85547 August 1989 143 JUH HV-UI INVMILItfT VERAGES OVER 9000 PROPS III IMMEDIATE SHIPMENT ON VISA/MC

Author: Dr. D.B. Mathews


Edition: Model Aviation - 1989/08
Page Numbers: 52, 53, 143

UNIQUE EXPERIENCE Ive writing column nearly II years now Ive always sent manuscript MA editorial offices three five weeks before deadline Thats trick learned long ago college Get paper early youll invariably get better grade Well month decided differently held off writing until previous June 1989 issue arrived printer con cerned about June article would look print pleased layout thank ful editor knocked off some rough edges made sing better certainly felt subject matter made interesting col umn too Most us interest model matters pre-WW II era content recreate designs time frame found Elwin Lindsley actually restoring model over 50 years old Ive seen sort dedication authenticity Antique Classic aircraft classifications big EAA Oshkosh fly-in always felt deep respect restorers first encounter same sort effort modeling Heres story illustrate restorers dedica tion years ago Oshkosh stumbled onto beautiful yellow Curtiss Robin ever seen visiting father son restored used able personal sort thing Oshkosh before grew huge noticed planes likenew axle caps complete famous Curtiss logo asked earth did find new brass castings like replied couldnt find anyso sandcast new ones gone library read thing could find subject taught themselves develop patterns pour molds looked inside Robin saw newlooking wicker seats Yep Theyd followed same path recreated originals admire respect sort dedicated ef fort dont Has point made Youre invited read above whatever wish Ralph Beck historian Most us will never have opportunity restore 50-year-old model airplane can around can have chance closely recreate model designs time photos month clearly illustrate Ralph Becks masterful craftsmanship deep sense history Douglas Hardware project Ralphs model powered non-Surpass old-style 05 90 four-stroker since prudently 52 Model Aviation Rado Control Old-timers Dr DB Mathews 909 N Maize Rd Townhouse 734 Wichita KS 67212 1 Ross Thomas Santa Ann CA Bowden-designed PLW-4 low-wing reported its flying qualities improved reducing dihedral bears family resemblance Mallard Ralph Beck Beloit WI built new Douglas Hardware model see Docs column June 1989 issue flies farm Power OS 90 four-stroke master craftsman attested bare bones photo Look pieces wing Love transporter m Chose risk effort potentially un reliable Loutrell its look-alike GHQ Other wise accurate historically astute recrea tion Look pieces structure readers have ever built Cleveland Stinson Gullwing big did teenager wing ribs built up similar fashion seems like spent entire 16th year life building wing ribs Ralph Flwin Ill just have say have earned utmost respect model builder has read last two columns Old-Timers ailerons 16-plus years Ive sticking radios Old-Timers Ive advised strongly against placing ailerons highly dihedraled wings addition ailerons usually produces nothing severe yaw try use themand requires copious amounts opposite rudder counteract pretty much universally accepted fact right Well comes Charles Beck Ralphs brother Freeport IL some photos Red Zephyr ran three-view March 1979 column ailerons added Ill darned doesnt document good flying qualities good rolling ability Charles did reduce original dihedral mere six inches uses no differential travel no gap seals employs % up down travel has CU located normal 33% chord have no explanationonly astonishment Ive seen Super Buccaneer nearly zero di hedral fly ailerons has reader experience other Old-Timer flying rolling ailerons Im wondering might some phenomenon peculiar Red Zephyr Mallard stuff Dr Gerald Butler writes response Bowden Mallard writeup April 89 issue 1984 saw plans Spitfirelooking Mallard built display 1985 Toledo show found drawings very vague areas model supposedly Continued page 143 DISTRIBUTED BY LED waiazza 7660 Son Gobriol Rood codero CA 93422 4661717 Ike take le8ecand8 t Up Shelters sturdy stee ~ OOSSW E LIP Id She05terpaIe partsto tr p over N NO roP0* tofe onvOurvI fl eture C roreft gturdy fade reeiet8flt led Blue nylon top 351 LJP % Idi5ANEYOO odd Leisure ProduCt Ltd MAA 3287AMA 85800ad poad John peck 115061 WILHAMS ACCESSORIES 4 PILOTS STANDARD TSMAN 0 RACING TAR VINTAGE TH CONTOUR BALLOON EN AGE 4 ENGINES PRATT & WHITNEY HT HONE August 1989 53 George M Niebauer Las Vegas NV built 02 Replica-size Douglas Hardware FF just cant keep good design down eh $975AVAILABLE AT AMERICAS$525 FINEST HOBBY SHOPS AN~ PARTS T & WHITNEY HONE SPANDAU BELLUM RC Giant Scale/de Vries Continued page 139 produced triple plan celebrate 10th year fine Scale model designing busi ness latest drawing permits building long-wing J-3 Cub 127-in span clippedwing Cub 102-in span Super Cub Accessories cowls bent gears etc available Wendell 1041 Heatherwood Lane Orrville OH 667 phone 1-216682-8896 also has some neat Giant Scale 60-in Edo float drawings Fly safelywell meet next month RC Old-Timers/Mathews Continued page 53 built flown several long phone conver sations John Pond reference docu mentation used prepare drawings finally revealed source enlarge ment small drawings Col Bowdens book Petrol Engine Aircraft wrote late Ben Buckle England put problem before readers Aeromodeller column received several replies including Tony Perihall longtime Bowden fan After considerable research have both now concluded reason no pho tos other documentation exist Mallard simple model never constructed Bowden did build subsequent low-winged model called Gulla much-simplified versionbut absolutely nothing indi cate Mallard ever built flown spring 1985 flew Mallard would turn received very little damage since no idea plane flew poorly hung up two years 1987 took bull horns rebuilt wing dihedral doesnt look nice now does fly fairly well still no sport plane flown local SAM 41 contests danger getting type wild let ter exchange Ken Willard set off several years ago downwind turn thing Ive gotta ad mit Im getting lost Bowden designs April 89 column speculated turn problems Mouse Blue Dragon designs likely associated too much di edral seemed supported letter Ross Thomas citing tendency PLW 4 another Bowden low-wing design become spirally unstable thermal subsequent Improvement situation reduction dihedral SAM does allow Now Dr Butler comes along improves Mallard increasing dihedral dunno Kick around next two months meantime Enjoy RC Helicopters/Jolly Continued page 54 Concept 30 distributed America Great Planes Model Distributors also han dles OS Max engines So unlike Hirobo Shut tle Concept 30 distributed 05 32 FSRH 05 28 FSRH Kyosho selected design engines Concept Great Planes has done excellent job promoting its new little Helicopter Because diligent work its excellent reputation distributor Great Planes has insured Concept 30 will very successful available model shops Great Planes has supplied Concept 30 kit testing received yesterday have time assemble task should take about four hours did open box checked out contents though Concept comes packed foam shipping container much same condition Hirobos Shuttle about 80% assembled Looking over Concept 30 reveals pure Kyosho beautifully molded parts fit well Kyosho has prepared excellent instruction manual obvi ously aimed novice itself will go long way toward flying success Since havent assembled Concept yet Id like save comments until next month However would like state Kyo sho Taya should congratulated ef forts highly competitive 30-size class Concept 30 very viable machine showing great strides design production techniques Id also like thank Great Planes making Concept 30 available both So dont tune next month well see what Concept 30 like assemble fly BCNU RC Pylon Racing/Hager Continued page 55 Wow guess what Jerry Small Brian raced other As luck would have Brian cut race trying catch Jerry turned 11000 smoke cleared Bruce Richmond Jerry Small tied first place Brian fast waswas still third place just point down Well flyoff first place both flamed out Jerry ended up winning first Formula race ever best time Boy What great contest Ft Worth Thunderbirds results Sunday 1 Jerry Smallll0t9 2 Bruce Richmondl 1457 two tied result de cided fast time 3 Brian Richmond 10591 4 Randy Ritchl1803 two tied result decided fast time 5 Rich Tocci 11702 6 JP Hanwayl1331 7 Dub Jett 10963 8 Norm Johnsonl1702 9 Ed Ran kinl1433 10 Red Cranfilll1632 21 entries Two new racers showed up contest Bob Miller Roger Shaller look forward seeing two future Now its West Virginia report RC Pylon Racing Al Ritch Back November Tn-State Flyers ftom Huntington WV Mountaineers Flying Hillbillies clubs Charleston WV area completed fourth year Q-25 Pylon Racing fly Q500-type airplanes usually ScatCats powered 05 25 FSRs past permitted use modified engines including some OS 25 VF-DFs 1988 required engines strictly stock use stock muffler 9 x 4 Master Airscrew propeller club-supplied 25 %-nitro fuel changes made attempt tract newcomers Racing reducing cost equipment slowing airplanes down SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S & 09S ALL CUS TOM & STOCK PARTS VAILABLEINDIVIDUALL V COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF FUEL TUBING FOUR BRANDS OF GLOW PLUGS HARD-TO-FIND HA RD WA RE OLD TIMER SUPPLIES COILS CONDENSERS NGK & STITT SPARK PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5& 7LOOP 1/4RUBBER BANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOY SR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES C YANOA CR YLA TES & EPOXIES ORDER DY MAIL OR PHONE 619 728-4395 SORRY NO C OD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPFINO LING FEE $150 FOR INSURANCE ADO $100 STOCK ORDERS SHIPPED WITHIN 24 HRS A monthly publication covering International RO Soaring Scene US $17 yr 21/yr IsIClass] Canada/MexIco $22/yr US funds Asia&Pacific S28/yr USfunds Europe UK $28/yr USfunds Surface Mail Foreign $18/yr US funds RO SOARING DIGEST PO Box 1079 Payson AZ 85547 August 1989 143 JUH HV-UI INVMILItfT VERAGES OVER 9000 PROPS III IMMEDIATE SHIPMENT ON VISA/MC

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