Aerobatics Ted Fancher BACK air again finally got wing flying level both upright invert ed Now lets few loops both round square inside outside start investigate several Trim Objec tives less simultaneously Stabili ty Response Rate Tracking Turn Uniformity addition going start thinking about control han dle Editors note column fifth series started May 1985 issue RMcM fly loops does airplane turn consistent radius smooth ly ending ioop same altitude began does jump maneu ver consistently finish higher Con versely have force out level flight fight keep out ground bottom Does react same inside outside does turn easily way hard other Keep responses mind wait gas run out Dont fall asleep however important trim clues manifests itself engine quits Watch reaction airplane closely engine dies Its response power off going tell us lot about whether symptoms mistrim wit nessed flight related airplane trim handle may fact need adjusted airplane took off climbed smoothly tracked well level flight has responded uniformly positively control inputs chances engine quits nose will drop just slightly tension will remain positive slightly reduced course power off will have fairly precise control rate descent touchdown happy state affairs congratulations hard part almost over other hand ship leaped air flew level flight everywhere except wanted maneuvered like drunken cat chasing mouse etc have bit work engine quit did airplane pitch noseSeptember 1985 69 Yves Fernandez tears up skies France beautiful Scirocco Craft has Super tigre 46 power uses 3-biaded 11 x 6 prop tricycle gear Photo Claus Maikis young men Senior Junior Stunt Champions 83 Nats Reno NV Jimmy IdoClellan L California Nat Gifford R Massachusetts Jims plane Chipmunk Nats Tutor Photo Windy Urtnowski Continued page 147 Fancher Stunt secretl Reno Nats plane used method mount fuel tank idea stolen Stan Powell 1120 nylon bolt goes through brass tube soldered tank hardwood block other side nut holding Chuck Holtzappies lovely bride Pat holds ST 46-powered Jette Stunter weighs 50 oz sports Sig dope finish Chuck hard-working staff PAMPAs Stunt News Urtnowski photo detail addition aircraft display Hangars Three Four museum has library facility located second floor Old Firehouse Bldg can used modelers research pur poses daily 900 am 430 pm Copies data found can made nominal cost Please note library cannot research mail due limited staff research must done premises have specific questions about use either museum library William Kaiser curator secretary Jenrue Satora can reached 516 222-1190 during library hours listed above visit museum use library free would sug gest small donation services offered way funds obtained museum materials re quired continue restoration work Hints workshop Bob Furr Orbiting Eagles Omaha NE says having trouble using cyano acrylates super glues idea makes using Elmers Titebond glues balsa sheeting almost easy using super glues heat-shrink iron turned near its highest setting will set either glues seconds Just hold sheet ing flat hand go over area glue applied very slowly iron irons heat accel erates glues setting action Send CL Scale items building tips photos Bill Boss 77-06 269th St New Hyde Park NY 11040 CL Aerobatics/Fancher Continued page 69 up Did line tension nearly disappear Did landing spot just appear rather being selected case have tail-heavy airplane dont care CG exactly Fancher told put Add nose weight till dont no ... airplane flew much same previous example engine WEEE EU EKE U U U U U U U U U U U U U U U I U U U U U U U U U U U I I I EEEEEEu.. SIG CHAMPION FUEL FREIGHT ICOLLECTfl PINTI55GALDRUMj ID~ U $31U 10%$395I$29500 15%$41559OOU THE CHOICE OF CHAMPION FLYEIS Dont misled price alone model fuels same Some cut-rate mail order fuel outlets selling 10% fuel really contains about 8% nitro skimp costly nitro formulating fuel weight basis rather thaI traditional percent-of-volume method Also some mail order fuelsare blendedwith aslittleas 15% totaloil ThatsOKif yougeta perfect needlesettingeverytimebut otherwise lean run can easily ruin engine Cuts quality like make easy blend com petitively priced fuel really getting quality want over 20 years SIG has blending fuel finest quality ingredients available alcohol 995% pure very best grade available nitro use 100% pure get honest portion based % volume maximum lubrication get perfect 50/50 blend Bakers AA Castor Oil Klotz Techniplate Racing Oil protect expensive engines finest quality fuel can made price Dont take word try some ludge yourself U U U U U U See dealer first available order direct Call U 800 247 5008 toll free orders Catalog 47 $300 SIG MANUFACTURING CO Montezuma IA 50171 •Pmbrtnhaeeithustmtm E.EEE.EE... quit nose did pitch up line tension did decrease control glide jerky unsmooth control system likely too sensitive add weight nose Reduce line spacing handle depend ing severity problem Reduc ing spacing little noticeable early coarse ad justment would go no less time point move both lines equal amount may yet have bias line spacing nowhere near ready quit trimming airplane yet Finally ship pulled air grooved smoothly level flight responded slowly control inputs FREE SHIPPING ON ORDERS OVER $1000 % ITRO 5% 10% 15% 25% 35%$550 QUARTGALLON El 4-STROKE FUE $1350 $1550 NEW SIG $525 $595 U U U U I U U U U U m U U U U U U showed almost no interest cornered maneuvers problem bit complex upon engine flameout airplane noticeably drops nose must react fairly quickly pull up smooth glide line tension remains good can whip readily extend glide airplane almost certainly nose-heavy appropriate adjust ments should made Things try clude lighter muffler lighter spinner etc oras last resortadd weight tail until response rate correct preceding Case fits observed performanceexcept glide smooth controllable no abrupt tendency drop nose engine quits aVO th8ticdtr taG Ls rante Ignition Engine Parts Only have parts inventory prompt delivery Over 235 items Send $200 current catalog Both require Two Channel Radio Mini Servos 250 MAN BATT wood construction include hardware needed $2500 ea includes shipping UPS COO add $200 $600 plans CA add 6% Dealer Inquiries Invited LINDSEY MICRO PRODUCTS 160-A No Fairview Ave Suite 104 Goleta CA 93117 805 683 2042 After 5 pm Pacific September 1985 147 M52LMP1flAfl BALSARI TE R/C WONDER JUICE Balsartte makes covenng stick better also moisture-proofs wood adds little extra structural strength plus U prevents fuelcreep under seams U fuelproofs engine artments U attaches raw dacron silk paper tissue wood CGVERiTE 420 Babylon Rd Horsham PA 19044 handing bigger line major decals LISTING @F INSIGNIAS PRESSURE SENSITIVE WATER TRANSFER 7 GIANT SCALE 18 SHEETS US Cocarde del J US w/bars US WW British WW French WW German WW eets Nomenclature sheets 60 SIZE US Cocarde del J US w/bars British [ WW II roundel] Japanese German WW II Canadian late 1950s present j Polish German WW US WW British WW French WW Italian Swedish Israeli Nationalist China RussiaNomenclature sheets 40 SIZE36 SHEETS US Cocarde del US w/bars British WW II roundel J iapanese German WW II Canadian late 1950s present j Polish German WW US WW British WW French WW ltalian Swedish lsraeli Nationalist China Russia Nomenclature sheets PROPELLER DECALS Hamilton Standard Mc Cauley Falcon Hartzell Fahlin Pratt & Whitney logo KILL MARKINGS German American Japanese Tank Ship Bombing missions NOMENCLATURE SHEETS LETTERS NUMBERS AND STARS 10 colors variety sizes Distributor inquiries invited ~I major decals NORTHEAST SCREEN GRAPHICS 21 FISHER AVE EAST LOHGMEADOW MA 01828 TEL 413 5254118 likely have too insensitive con trol set-up Increase line spacing per flight until response improves However ship took off smoothly grooved level flight handled nicely after engine shutdown heaven forbid got light lines pitched up yet turns sluggishly unpredictably problem complicated situation like must deter what keeping airplane pitching rate desire have determined other means CG roughly correct smooth takeoff good groove level flight proper response engine shutdown simply adding tail weight isnt best solution Checking table May 1985 issue response rate see factors controlling pitch built plane tail volume tail effectiveness aspect ratio etc have couple aces hole however First try reducing ratio Flap Elevator travel Objective II item 4 accomplishes two things reduces amount flap travel thus reducing negative pitching moment same time increases amount Elevator Deflection item 11 given amount flap travel thereby increasing Tail Effectiveness item 3 Another very effective way increas ing Tail Effectiveness Sealing Hingeline item 7 between stab elevator Lifting surfaces troduce lift difference pressure between top bottom surface Whe9 pres sure higher side wil seek means available get lowerpressure area hingeline gap greater about 1% tail chord will significant leakage therefore loss lift Sealing gap will increase lift thereby Tail Effectiveness should help crease rate response Propellers item 8 Horsepower item 9 go hand hand forces retards response rate drag primarily induced drag must have adequate thrust overcome drag duced sharp maneuvers run Stunt engines classic manner U PO BOX 306TORANC5 CA 80510 well below peak-power rpm can increase airplane response rate increasing rpm engine thereby its thrust nitro and/or larger air intakes will increase power necessarily increasing airspeed Both will also increase fuel consumption however must used sparingly Smaller-diameter props very useful method increasing power will almost always improve turn rate Addi tional pitch will move air over tail thus increase its effectiveness however care must taken over load engine pitch will also crease airspeed engine can han dle load item 10 will also make airplane responsive assum ing control system has sufficient mechanical advantage overcome airloads flaps elevators final albeit distasteful approach increasing response rate either increase elevator size reduce flap size Use knives etc mandatory either case Yuucch Okay weve got thing gliding well turning great cant life us get fly straight level four six feet First remember CL plane especially light wing loading will naturally climb wind dive little downwind velocity wind adds subtracts airspeed therefore lift cant really trim out completely However remember comparatively nose-heavy airplane must fly slightly higher angle attack level flight compensate greater pitching moment about CG Therefore nose-heavy airplane will aggravate climb/dive syndrome wind Controversial believe still have problem hunting level flight lets consider handle neutral position Trim Objective item Handle 1 Any reasonably straight airplane should want fly straight level balance stable wants elevation different rule book altitude have handle trim-problem upright level flight airplane wants climb 148 Model Aviation HOBBY WORLD IMPORTS 1289 WESTHIEMER HOUSTON TEXAS 77077 713-487-2031 Please Call Prices Planes Boats Cars McDeI Nisturer Eq $2495 iol 1 595 plus postage & DINERS StoreMON-SAT10-6pm HoursSUNDAY12-Spin FULL LINE DISCOUNT HOBBY SHOP FAI RUBBER Sizes 114 3/16 1/8 3/32 1/16 042 thick pound box Price $1300 FREE4oz bottle SLICK rubber lube per box Postpaid UPS USA 65 FF kits intl Starduster Coupe Deville 4 Satellites mow avail Dragmaster Zingo FAI Power tilka Wakefield P30s 2 pacifier tanks Crocket hooks Slick lube Seelig & KSB timers Front ends 3 prop kits 2 kinds fuse winders kinds hardware Books much 1985 Catalog 75 Cal add 6% tax FAl Model Supply Matched Performance System TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELSK&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micrn-Balloons FILLER K&B SUPER POXY RESIN K&B SUPER POXY THINNER K&B SUPER POXY PRIMER K&B SUPER POXY PAINT K&B MIXING CUPS inverted wants dive shorten Down line bit flight problem should disappear Use same solution reverse opposite condition pildts mistakenly fly han dle relaxed natural position neutral think mistake both problem Turn Uniformi ty later blamed thing doesnt respond handle adjustment have couple zingers Leadout Position Trim Objective item 4 too far aft vertical component P-Factor item 10 produced due airplane flying nose pointing outward line tangent circle lower half prop arc upright will produce thrust top ship will want climb Control input must resist Again reverse true plane flying inverted leadout-too-far-aft problem exists probably manifesting itself another form instability tight cor ners airplane will jerk lines fashion similar hinging will felt pilot seen As leadouts moved forward jerk should disap pear hunting level flight should decrease hope have last defense sealing flap hingeilne item 5 have personally fought sealing flaps over recent years because felt unless stalling ship corners have no need additional lift primary byproduct sealing hingeline still feel state ment true witnessed near miracleat Renoone able repeat Gary McClellans three-year-old Stunter steadfastly resisted best efforts eliminate almost uncontrollable hunting problem given up just flew way. embarrass ment us both Yet arrival Reno ever since airplane flew like rails level flight finally threw ego winds asked Gary what earth done turns out sealed flap hingeline get little lift high density-altitude Lo behold totally cured hunting DIVISION OF BAR/RICH SALES CO #2 FAIRWAY HANNIBAL MO 63401 13141 221-8803 aster MANUFACTURERS OF SPORT PATTERN STINGER II PEPPERMINT PATTIE 60 TAN PEPPERMINT PATTIE 40SPORT/SCALE PEPPERMINT PATTIE 15 HIPERBIPE last two days Nats Cele bration started hunt badly something never done before Inspection after Nats course revealed broken hinge allowing flap flex open hingeline gap Repairing hinge concurrently sealing hingeline eliminated hunt Take what its worth last element discussing Stability airplane doesnt come out corners hard flat turns either too much enough hunts experiencing another form stability problem controver sial opinion conventional solu tion adding nose weight totally wrong unless have other indications CG actually being too far aft Moving CG forward increases pitching moment therefore amount control input required given corner creases feel better solution reduce line spacing handle move CG aft little some point plane will exit corner hard flat repeatable fashion As always avoid extremes little time Ted Fancher 1S8 Flying Cloud Isle Foster City CA 94404 CL Navy Carrier/Perry Continued page 70 ten rule line actual practice other new rule exempts Carrier models noise-abatement regulations Although Executive Council could enact rule desire above Con test Boards objections hope similar ruling CL Contest Board Carrier other CL events will emphasize Council desir ability including Contest Boards effort apply noise-abatement regulations competitive events Previously-published information left Councils intent very much doubt issue Hobby Lobbys MINI-SERIES R/CI HLRM1 320 Mini-Series F-4 PHANTOM$4400 Semi scale balsa 35 wingspan 2 3 4 channels 09 engine Superb flyer Can built limited space September 1985 149 Order Send price kit plus $390 prepaid credit cerd orders Send $650 000 shipments Landing interpretation letter George Leib High-Low-Landing
Edition: Model Aviation - 1985/09
Page Numbers: 69, 147, 148, 149
Aerobatics Ted Fancher BACK air again finally got wing flying level both upright invert ed Now lets few loops both round square inside outside start investigate several Trim Objec tives less simultaneously Stabili ty Response Rate Tracking Turn Uniformity addition going start thinking about control han dle Editors note column fifth series started May 1985 issue RMcM fly loops does airplane turn consistent radius smooth ly ending ioop same altitude began does jump maneu ver consistently finish higher Con versely have force out level flight fight keep out ground bottom Does react same inside outside does turn easily way hard other Keep responses mind wait gas run out Dont fall asleep however important trim clues manifests itself engine quits Watch reaction airplane closely engine dies Its response power off going tell us lot about whether symptoms mistrim wit nessed flight related airplane trim handle may fact need adjusted airplane took off climbed smoothly tracked well level flight has responded uniformly positively control inputs chances engine quits nose will drop just slightly tension will remain positive slightly reduced course power off will have fairly precise control rate descent touchdown happy state affairs congratulations hard part almost over other hand ship leaped air flew level flight everywhere except wanted maneuvered like drunken cat chasing mouse etc have bit work engine quit did airplane pitch noseSeptember 1985 69 Yves Fernandez tears up skies France beautiful Scirocco Craft has Super tigre 46 power uses 3-biaded 11 x 6 prop tricycle gear Photo Claus Maikis young men Senior Junior Stunt Champions 83 Nats Reno NV Jimmy IdoClellan L California Nat Gifford R Massachusetts Jims plane Chipmunk Nats Tutor Photo Windy Urtnowski Continued page 147 Fancher Stunt secretl Reno Nats plane used method mount fuel tank idea stolen Stan Powell 1120 nylon bolt goes through brass tube soldered tank hardwood block other side nut holding Chuck Holtzappies lovely bride Pat holds ST 46-powered Jette Stunter weighs 50 oz sports Sig dope finish Chuck hard-working staff PAMPAs Stunt News Urtnowski photo detail addition aircraft display Hangars Three Four museum has library facility located second floor Old Firehouse Bldg can used modelers research pur poses daily 900 am 430 pm Copies data found can made nominal cost Please note library cannot research mail due limited staff research must done premises have specific questions about use either museum library William Kaiser curator secretary Jenrue Satora can reached 516 222-1190 during library hours listed above visit museum use library free would sug gest small donation services offered way funds obtained museum materials re quired continue restoration work Hints workshop Bob Furr Orbiting Eagles Omaha NE says having trouble using cyano acrylates super glues idea makes using Elmers Titebond glues balsa sheeting almost easy using super glues heat-shrink iron turned near its highest setting will set either glues seconds Just hold sheet ing flat hand go over area glue applied very slowly iron irons heat accel erates glues setting action Send CL Scale items building tips photos Bill Boss 77-06 269th St New Hyde Park NY 11040 CL Aerobatics/Fancher Continued page 69 up Did line tension nearly disappear Did landing spot just appear rather being selected case have tail-heavy airplane dont care CG exactly Fancher told put Add nose weight till dont no ... airplane flew much same previous example engine WEEE EU EKE U U U U U U U U U U U U U U U I U U U U U U U U U U U I I I EEEEEEu.. SIG CHAMPION FUEL FREIGHT ICOLLECTfl PINTI55GALDRUMj ID~ U $31U 10%$395I$29500 15%$41559OOU THE CHOICE OF CHAMPION FLYEIS Dont misled price alone model fuels same Some cut-rate mail order fuel outlets selling 10% fuel really contains about 8% nitro skimp costly nitro formulating fuel weight basis rather thaI traditional percent-of-volume method Also some mail order fuelsare blendedwith aslittleas 15% totaloil ThatsOKif yougeta perfect needlesettingeverytimebut otherwise lean run can easily ruin engine Cuts quality like make easy blend com petitively priced fuel really getting quality want over 20 years SIG has blending fuel finest quality ingredients available alcohol 995% pure very best grade available nitro use 100% pure get honest portion based % volume maximum lubrication get perfect 50/50 blend Bakers AA Castor Oil Klotz Techniplate Racing Oil protect expensive engines finest quality fuel can made price Dont take word try some ludge yourself U U U U U U See dealer first available order direct Call U 800 247 5008 toll free orders Catalog 47 $300 SIG MANUFACTURING CO Montezuma IA 50171 •Pmbrtnhaeeithustmtm E.EEE.EE... quit nose did pitch up line tension did decrease control glide jerky unsmooth control system likely too sensitive add weight nose Reduce line spacing handle depend ing severity problem Reduc ing spacing little noticeable early coarse ad justment would go no less time point move both lines equal amount may yet have bias line spacing nowhere near ready quit trimming airplane yet Finally ship pulled air grooved smoothly level flight responded slowly control inputs FREE SHIPPING ON ORDERS OVER $1000 % ITRO 5% 10% 15% 25% 35%$550 QUARTGALLON El 4-STROKE FUE $1350 $1550 NEW SIG $525 $595 U U U U I U U U U U m U U U U U U showed almost no interest cornered maneuvers problem bit complex upon engine flameout airplane noticeably drops nose must react fairly quickly pull up smooth glide line tension remains good can whip readily extend glide airplane almost certainly nose-heavy appropriate adjust ments should made Things try clude lighter muffler lighter spinner etc oras last resortadd weight tail until response rate correct preceding Case fits observed performanceexcept glide smooth controllable no abrupt tendency drop nose engine quits aVO th8ticdtr taG Ls rante Ignition Engine Parts Only have parts inventory prompt delivery Over 235 items Send $200 current catalog Both require Two Channel Radio Mini Servos 250 MAN BATT wood construction include hardware needed $2500 ea includes shipping UPS COO add $200 $600 plans CA add 6% Dealer Inquiries Invited LINDSEY MICRO PRODUCTS 160-A No Fairview Ave Suite 104 Goleta CA 93117 805 683 2042 After 5 pm Pacific September 1985 147 M52LMP1flAfl BALSARI TE R/C WONDER JUICE Balsartte makes covenng stick better also moisture-proofs wood adds little extra structural strength plus U prevents fuelcreep under seams U fuelproofs engine artments U attaches raw dacron silk paper tissue wood CGVERiTE 420 Babylon Rd Horsham PA 19044 handing bigger line major decals LISTING @F INSIGNIAS PRESSURE SENSITIVE WATER TRANSFER 7 GIANT SCALE 18 SHEETS US Cocarde del J US w/bars US WW British WW French WW German WW eets Nomenclature sheets 60 SIZE US Cocarde del J US w/bars British [ WW II roundel] Japanese German WW II Canadian late 1950s present j Polish German WW US WW British WW French WW Italian Swedish Israeli Nationalist China RussiaNomenclature sheets 40 SIZE36 SHEETS US Cocarde del US w/bars British WW II roundel J iapanese German WW II Canadian late 1950s present j Polish German WW US WW British WW French WW ltalian Swedish lsraeli Nationalist China Russia Nomenclature sheets PROPELLER DECALS Hamilton Standard Mc Cauley Falcon Hartzell Fahlin Pratt & Whitney logo KILL MARKINGS German American Japanese Tank Ship Bombing missions NOMENCLATURE SHEETS LETTERS NUMBERS AND STARS 10 colors variety sizes Distributor inquiries invited ~I major decals NORTHEAST SCREEN GRAPHICS 21 FISHER AVE EAST LOHGMEADOW MA 01828 TEL 413 5254118 likely have too insensitive con trol set-up Increase line spacing per flight until response improves However ship took off smoothly grooved level flight handled nicely after engine shutdown heaven forbid got light lines pitched up yet turns sluggishly unpredictably problem complicated situation like must deter what keeping airplane pitching rate desire have determined other means CG roughly correct smooth takeoff good groove level flight proper response engine shutdown simply adding tail weight isnt best solution Checking table May 1985 issue response rate see factors controlling pitch built plane tail volume tail effectiveness aspect ratio etc have couple aces hole however First try reducing ratio Flap Elevator travel Objective II item 4 accomplishes two things reduces amount flap travel thus reducing negative pitching moment same time increases amount Elevator Deflection item 11 given amount flap travel thereby increasing Tail Effectiveness item 3 Another very effective way increas ing Tail Effectiveness Sealing Hingeline item 7 between stab elevator Lifting surfaces troduce lift difference pressure between top bottom surface Whe9 pres sure higher side wil seek means available get lowerpressure area hingeline gap greater about 1% tail chord will significant leakage therefore loss lift Sealing gap will increase lift thereby Tail Effectiveness should help crease rate response Propellers item 8 Horsepower item 9 go hand hand forces retards response rate drag primarily induced drag must have adequate thrust overcome drag duced sharp maneuvers run Stunt engines classic manner U PO BOX 306TORANC5 CA 80510 well below peak-power rpm can increase airplane response rate increasing rpm engine thereby its thrust nitro and/or larger air intakes will increase power necessarily increasing airspeed Both will also increase fuel consumption however must used sparingly Smaller-diameter props very useful method increasing power will almost always improve turn rate Addi tional pitch will move air over tail thus increase its effectiveness however care must taken over load engine pitch will also crease airspeed engine can han dle load item 10 will also make airplane responsive assum ing control system has sufficient mechanical advantage overcome airloads flaps elevators final albeit distasteful approach increasing response rate either increase elevator size reduce flap size Use knives etc mandatory either case Yuucch Okay weve got thing gliding well turning great cant life us get fly straight level four six feet First remember CL plane especially light wing loading will naturally climb wind dive little downwind velocity wind adds subtracts airspeed therefore lift cant really trim out completely However remember comparatively nose-heavy airplane must fly slightly higher angle attack level flight compensate greater pitching moment about CG Therefore nose-heavy airplane will aggravate climb/dive syndrome wind Controversial believe still have problem hunting level flight lets consider handle neutral position Trim Objective item Handle 1 Any reasonably straight airplane should want fly straight level balance stable wants elevation different rule book altitude have handle trim-problem upright level flight airplane wants climb 148 Model Aviation HOBBY WORLD IMPORTS 1289 WESTHIEMER HOUSTON TEXAS 77077 713-487-2031 Please Call Prices Planes Boats Cars McDeI Nisturer Eq $2495 iol 1 595 plus postage & DINERS StoreMON-SAT10-6pm HoursSUNDAY12-Spin FULL LINE DISCOUNT HOBBY SHOP FAI RUBBER Sizes 114 3/16 1/8 3/32 1/16 042 thick pound box Price $1300 FREE4oz bottle SLICK rubber lube per box Postpaid UPS USA 65 FF kits intl Starduster Coupe Deville 4 Satellites mow avail Dragmaster Zingo FAI Power tilka Wakefield P30s 2 pacifier tanks Crocket hooks Slick lube Seelig & KSB timers Front ends 3 prop kits 2 kinds fuse winders kinds hardware Books much 1985 Catalog 75 Cal add 6% tax FAl Model Supply Matched Performance System TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELSK&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micrn-Balloons FILLER K&B SUPER POXY RESIN K&B SUPER POXY THINNER K&B SUPER POXY PRIMER K&B SUPER POXY PAINT K&B MIXING CUPS inverted wants dive shorten Down line bit flight problem should disappear Use same solution reverse opposite condition pildts mistakenly fly han dle relaxed natural position neutral think mistake both problem Turn Uniformi ty later blamed thing doesnt respond handle adjustment have couple zingers Leadout Position Trim Objective item 4 too far aft vertical component P-Factor item 10 produced due airplane flying nose pointing outward line tangent circle lower half prop arc upright will produce thrust top ship will want climb Control input must resist Again reverse true plane flying inverted leadout-too-far-aft problem exists probably manifesting itself another form instability tight cor ners airplane will jerk lines fashion similar hinging will felt pilot seen As leadouts moved forward jerk should disap pear hunting level flight should decrease hope have last defense sealing flap hingeilne item 5 have personally fought sealing flaps over recent years because felt unless stalling ship corners have no need additional lift primary byproduct sealing hingeline still feel state ment true witnessed near miracleat Renoone able repeat Gary McClellans three-year-old Stunter steadfastly resisted best efforts eliminate almost uncontrollable hunting problem given up just flew way. embarrass ment us both Yet arrival Reno ever since airplane flew like rails level flight finally threw ego winds asked Gary what earth done turns out sealed flap hingeline get little lift high density-altitude Lo behold totally cured hunting DIVISION OF BAR/RICH SALES CO #2 FAIRWAY HANNIBAL MO 63401 13141 221-8803 aster MANUFACTURERS OF SPORT PATTERN STINGER II PEPPERMINT PATTIE 60 TAN PEPPERMINT PATTIE 40SPORT/SCALE PEPPERMINT PATTIE 15 HIPERBIPE last two days Nats Cele bration started hunt badly something never done before Inspection after Nats course revealed broken hinge allowing flap flex open hingeline gap Repairing hinge concurrently sealing hingeline eliminated hunt Take what its worth last element discussing Stability airplane doesnt come out corners hard flat turns either too much enough hunts experiencing another form stability problem controver sial opinion conventional solu tion adding nose weight totally wrong unless have other indications CG actually being too far aft Moving CG forward increases pitching moment therefore amount control input required given corner creases feel better solution reduce line spacing handle move CG aft little some point plane will exit corner hard flat repeatable fashion As always avoid extremes little time Ted Fancher 1S8 Flying Cloud Isle Foster City CA 94404 CL Navy Carrier/Perry Continued page 70 ten rule line actual practice other new rule exempts Carrier models noise-abatement regulations Although Executive Council could enact rule desire above Con test Boards objections hope similar ruling CL Contest Board Carrier other CL events will emphasize Council desir ability including Contest Boards effort apply noise-abatement regulations competitive events Previously-published information left Councils intent very much doubt issue Hobby Lobbys MINI-SERIES R/CI HLRM1 320 Mini-Series F-4 PHANTOM$4400 Semi scale balsa 35 wingspan 2 3 4 channels 09 engine Superb flyer Can built limited space September 1985 149 Order Send price kit plus $390 prepaid credit cerd orders Send $650 000 shipments Landing interpretation letter George Leib High-Low-Landing
Edition: Model Aviation - 1985/09
Page Numbers: 69, 147, 148, 149
Aerobatics Ted Fancher BACK air again finally got wing flying level both upright invert ed Now lets few loops both round square inside outside start investigate several Trim Objec tives less simultaneously Stabili ty Response Rate Tracking Turn Uniformity addition going start thinking about control han dle Editors note column fifth series started May 1985 issue RMcM fly loops does airplane turn consistent radius smooth ly ending ioop same altitude began does jump maneu ver consistently finish higher Con versely have force out level flight fight keep out ground bottom Does react same inside outside does turn easily way hard other Keep responses mind wait gas run out Dont fall asleep however important trim clues manifests itself engine quits Watch reaction airplane closely engine dies Its response power off going tell us lot about whether symptoms mistrim wit nessed flight related airplane trim handle may fact need adjusted airplane took off climbed smoothly tracked well level flight has responded uniformly positively control inputs chances engine quits nose will drop just slightly tension will remain positive slightly reduced course power off will have fairly precise control rate descent touchdown happy state affairs congratulations hard part almost over other hand ship leaped air flew level flight everywhere except wanted maneuvered like drunken cat chasing mouse etc have bit work engine quit did airplane pitch noseSeptember 1985 69 Yves Fernandez tears up skies France beautiful Scirocco Craft has Super tigre 46 power uses 3-biaded 11 x 6 prop tricycle gear Photo Claus Maikis young men Senior Junior Stunt Champions 83 Nats Reno NV Jimmy IdoClellan L California Nat Gifford R Massachusetts Jims plane Chipmunk Nats Tutor Photo Windy Urtnowski Continued page 147 Fancher Stunt secretl Reno Nats plane used method mount fuel tank idea stolen Stan Powell 1120 nylon bolt goes through brass tube soldered tank hardwood block other side nut holding Chuck Holtzappies lovely bride Pat holds ST 46-powered Jette Stunter weighs 50 oz sports Sig dope finish Chuck hard-working staff PAMPAs Stunt News Urtnowski photo detail addition aircraft display Hangars Three Four museum has library facility located second floor Old Firehouse Bldg can used modelers research pur poses daily 900 am 430 pm Copies data found can made nominal cost Please note library cannot research mail due limited staff research must done premises have specific questions about use either museum library William Kaiser curator secretary Jenrue Satora can reached 516 222-1190 during library hours listed above visit museum use library free would sug gest small donation services offered way funds obtained museum materials re quired continue restoration work Hints workshop Bob Furr Orbiting Eagles Omaha NE says having trouble using cyano acrylates super glues idea makes using Elmers Titebond glues balsa sheeting almost easy using super glues heat-shrink iron turned near its highest setting will set either glues seconds Just hold sheet ing flat hand go over area glue applied very slowly iron irons heat accel erates glues setting action Send CL Scale items building tips photos Bill Boss 77-06 269th St New Hyde Park NY 11040 CL Aerobatics/Fancher Continued page 69 up Did line tension nearly disappear Did landing spot just appear rather being selected case have tail-heavy airplane dont care CG exactly Fancher told put Add nose weight till dont no ... airplane flew much same previous example engine WEEE EU EKE U U U U U U U U U U U U U U U I U U U U U U U U U U U I I I EEEEEEu.. SIG CHAMPION FUEL FREIGHT ICOLLECTfl PINTI55GALDRUMj ID~ U $31U 10%$395I$29500 15%$41559OOU THE CHOICE OF CHAMPION FLYEIS Dont misled price alone model fuels same Some cut-rate mail order fuel outlets selling 10% fuel really contains about 8% nitro skimp costly nitro formulating fuel weight basis rather thaI traditional percent-of-volume method Also some mail order fuelsare blendedwith aslittleas 15% totaloil ThatsOKif yougeta perfect needlesettingeverytimebut otherwise lean run can easily ruin engine Cuts quality like make easy blend com petitively priced fuel really getting quality want over 20 years SIG has blending fuel finest quality ingredients available alcohol 995% pure very best grade available nitro use 100% pure get honest portion based % volume maximum lubrication get perfect 50/50 blend Bakers AA Castor Oil Klotz Techniplate Racing Oil protect expensive engines finest quality fuel can made price Dont take word try some ludge yourself U U U U U U See dealer first available order direct Call U 800 247 5008 toll free orders Catalog 47 $300 SIG MANUFACTURING CO Montezuma IA 50171 •Pmbrtnhaeeithustmtm E.EEE.EE... quit nose did pitch up line tension did decrease control glide jerky unsmooth control system likely too sensitive add weight nose Reduce line spacing handle depend ing severity problem Reduc ing spacing little noticeable early coarse ad justment would go no less time point move both lines equal amount may yet have bias line spacing nowhere near ready quit trimming airplane yet Finally ship pulled air grooved smoothly level flight responded slowly control inputs FREE SHIPPING ON ORDERS OVER $1000 % ITRO 5% 10% 15% 25% 35%$550 QUARTGALLON El 4-STROKE FUE $1350 $1550 NEW SIG $525 $595 U U U U I U U U U U m U U U U U U showed almost no interest cornered maneuvers problem bit complex upon engine flameout airplane noticeably drops nose must react fairly quickly pull up smooth glide line tension remains good can whip readily extend glide airplane almost certainly nose-heavy appropriate adjust ments should made Things try clude lighter muffler lighter spinner etc oras last resortadd weight tail until response rate correct preceding Case fits observed performanceexcept glide smooth controllable no abrupt tendency drop nose engine quits aVO th8ticdtr taG Ls rante Ignition Engine Parts Only have parts inventory prompt delivery Over 235 items Send $200 current catalog Both require Two Channel Radio Mini Servos 250 MAN BATT wood construction include hardware needed $2500 ea includes shipping UPS COO add $200 $600 plans CA add 6% Dealer Inquiries Invited LINDSEY MICRO PRODUCTS 160-A No Fairview Ave Suite 104 Goleta CA 93117 805 683 2042 After 5 pm Pacific September 1985 147 M52LMP1flAfl BALSARI TE R/C WONDER JUICE Balsartte makes covenng stick better also moisture-proofs wood adds little extra structural strength plus U prevents fuelcreep under seams U fuelproofs engine artments U attaches raw dacron silk paper tissue wood CGVERiTE 420 Babylon Rd Horsham PA 19044 handing bigger line major decals LISTING @F INSIGNIAS PRESSURE SENSITIVE WATER TRANSFER 7 GIANT SCALE 18 SHEETS US Cocarde del J US w/bars US WW British WW French WW German WW eets Nomenclature sheets 60 SIZE US Cocarde del J US w/bars British [ WW II roundel] Japanese German WW II Canadian late 1950s present j Polish German WW US WW British WW French WW Italian Swedish Israeli Nationalist China RussiaNomenclature sheets 40 SIZE36 SHEETS US Cocarde del US w/bars British WW II roundel J iapanese German WW II Canadian late 1950s present j Polish German WW US WW British WW French WW ltalian Swedish lsraeli Nationalist China Russia Nomenclature sheets PROPELLER DECALS Hamilton Standard Mc Cauley Falcon Hartzell Fahlin Pratt & Whitney logo KILL MARKINGS German American Japanese Tank Ship Bombing missions NOMENCLATURE SHEETS LETTERS NUMBERS AND STARS 10 colors variety sizes Distributor inquiries invited ~I major decals NORTHEAST SCREEN GRAPHICS 21 FISHER AVE EAST LOHGMEADOW MA 01828 TEL 413 5254118 likely have too insensitive con trol set-up Increase line spacing per flight until response improves However ship took off smoothly grooved level flight handled nicely after engine shutdown heaven forbid got light lines pitched up yet turns sluggishly unpredictably problem complicated situation like must deter what keeping airplane pitching rate desire have determined other means CG roughly correct smooth takeoff good groove level flight proper response engine shutdown simply adding tail weight isnt best solution Checking table May 1985 issue response rate see factors controlling pitch built plane tail volume tail effectiveness aspect ratio etc have couple aces hole however First try reducing ratio Flap Elevator travel Objective II item 4 accomplishes two things reduces amount flap travel thus reducing negative pitching moment same time increases amount Elevator Deflection item 11 given amount flap travel thereby increasing Tail Effectiveness item 3 Another very effective way increas ing Tail Effectiveness Sealing Hingeline item 7 between stab elevator Lifting surfaces troduce lift difference pressure between top bottom surface Whe9 pres sure higher side wil seek means available get lowerpressure area hingeline gap greater about 1% tail chord will significant leakage therefore loss lift Sealing gap will increase lift thereby Tail Effectiveness should help crease rate response Propellers item 8 Horsepower item 9 go hand hand forces retards response rate drag primarily induced drag must have adequate thrust overcome drag duced sharp maneuvers run Stunt engines classic manner U PO BOX 306TORANC5 CA 80510 well below peak-power rpm can increase airplane response rate increasing rpm engine thereby its thrust nitro and/or larger air intakes will increase power necessarily increasing airspeed Both will also increase fuel consumption however must used sparingly Smaller-diameter props very useful method increasing power will almost always improve turn rate Addi tional pitch will move air over tail thus increase its effectiveness however care must taken over load engine pitch will also crease airspeed engine can han dle load item 10 will also make airplane responsive assum ing control system has sufficient mechanical advantage overcome airloads flaps elevators final albeit distasteful approach increasing response rate either increase elevator size reduce flap size Use knives etc mandatory either case Yuucch Okay weve got thing gliding well turning great cant life us get fly straight level four six feet First remember CL plane especially light wing loading will naturally climb wind dive little downwind velocity wind adds subtracts airspeed therefore lift cant really trim out completely However remember comparatively nose-heavy airplane must fly slightly higher angle attack level flight compensate greater pitching moment about CG Therefore nose-heavy airplane will aggravate climb/dive syndrome wind Controversial believe still have problem hunting level flight lets consider handle neutral position Trim Objective item Handle 1 Any reasonably straight airplane should want fly straight level balance stable wants elevation different rule book altitude have handle trim-problem upright level flight airplane wants climb 148 Model Aviation HOBBY WORLD IMPORTS 1289 WESTHIEMER HOUSTON TEXAS 77077 713-487-2031 Please Call Prices Planes Boats Cars McDeI Nisturer Eq $2495 iol 1 595 plus postage & DINERS StoreMON-SAT10-6pm HoursSUNDAY12-Spin FULL LINE DISCOUNT HOBBY SHOP FAI RUBBER Sizes 114 3/16 1/8 3/32 1/16 042 thick pound box Price $1300 FREE4oz bottle SLICK rubber lube per box Postpaid UPS USA 65 FF kits intl Starduster Coupe Deville 4 Satellites mow avail Dragmaster Zingo FAI Power tilka Wakefield P30s 2 pacifier tanks Crocket hooks Slick lube Seelig & KSB timers Front ends 3 prop kits 2 kinds fuse winders kinds hardware Books much 1985 Catalog 75 Cal add 6% tax FAl Model Supply Matched Performance System TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELSK&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micrn-Balloons FILLER K&B SUPER POXY RESIN K&B SUPER POXY THINNER K&B SUPER POXY PRIMER K&B SUPER POXY PAINT K&B MIXING CUPS inverted wants dive shorten Down line bit flight problem should disappear Use same solution reverse opposite condition pildts mistakenly fly han dle relaxed natural position neutral think mistake both problem Turn Uniformi ty later blamed thing doesnt respond handle adjustment have couple zingers Leadout Position Trim Objective item 4 too far aft vertical component P-Factor item 10 produced due airplane flying nose pointing outward line tangent circle lower half prop arc upright will produce thrust top ship will want climb Control input must resist Again reverse true plane flying inverted leadout-too-far-aft problem exists probably manifesting itself another form instability tight cor ners airplane will jerk lines fashion similar hinging will felt pilot seen As leadouts moved forward jerk should disap pear hunting level flight should decrease hope have last defense sealing flap hingeilne item 5 have personally fought sealing flaps over recent years because felt unless stalling ship corners have no need additional lift primary byproduct sealing hingeline still feel state ment true witnessed near miracleat Renoone able repeat Gary McClellans three-year-old Stunter steadfastly resisted best efforts eliminate almost uncontrollable hunting problem given up just flew way. embarrass ment us both Yet arrival Reno ever since airplane flew like rails level flight finally threw ego winds asked Gary what earth done turns out sealed flap hingeline get little lift high density-altitude Lo behold totally cured hunting DIVISION OF BAR/RICH SALES CO #2 FAIRWAY HANNIBAL MO 63401 13141 221-8803 aster MANUFACTURERS OF SPORT PATTERN STINGER II PEPPERMINT PATTIE 60 TAN PEPPERMINT PATTIE 40SPORT/SCALE PEPPERMINT PATTIE 15 HIPERBIPE last two days Nats Cele bration started hunt badly something never done before Inspection after Nats course revealed broken hinge allowing flap flex open hingeline gap Repairing hinge concurrently sealing hingeline eliminated hunt Take what its worth last element discussing Stability airplane doesnt come out corners hard flat turns either too much enough hunts experiencing another form stability problem controver sial opinion conventional solu tion adding nose weight totally wrong unless have other indications CG actually being too far aft Moving CG forward increases pitching moment therefore amount control input required given corner creases feel better solution reduce line spacing handle move CG aft little some point plane will exit corner hard flat repeatable fashion As always avoid extremes little time Ted Fancher 1S8 Flying Cloud Isle Foster City CA 94404 CL Navy Carrier/Perry Continued page 70 ten rule line actual practice other new rule exempts Carrier models noise-abatement regulations Although Executive Council could enact rule desire above Con test Boards objections hope similar ruling CL Contest Board Carrier other CL events will emphasize Council desir ability including Contest Boards effort apply noise-abatement regulations competitive events Previously-published information left Councils intent very much doubt issue Hobby Lobbys MINI-SERIES R/CI HLRM1 320 Mini-Series F-4 PHANTOM$4400 Semi scale balsa 35 wingspan 2 3 4 channels 09 engine Superb flyer Can built limited space September 1985 149 Order Send price kit plus $390 prepaid credit cerd orders Send $650 000 shipments Landing interpretation letter George Leib High-Low-Landing
Edition: Model Aviation - 1985/09
Page Numbers: 69, 147, 148, 149
Aerobatics Ted Fancher BACK air again finally got wing flying level both upright invert ed Now lets few loops both round square inside outside start investigate several Trim Objec tives less simultaneously Stabili ty Response Rate Tracking Turn Uniformity addition going start thinking about control han dle Editors note column fifth series started May 1985 issue RMcM fly loops does airplane turn consistent radius smooth ly ending ioop same altitude began does jump maneu ver consistently finish higher Con versely have force out level flight fight keep out ground bottom Does react same inside outside does turn easily way hard other Keep responses mind wait gas run out Dont fall asleep however important trim clues manifests itself engine quits Watch reaction airplane closely engine dies Its response power off going tell us lot about whether symptoms mistrim wit nessed flight related airplane trim handle may fact need adjusted airplane took off climbed smoothly tracked well level flight has responded uniformly positively control inputs chances engine quits nose will drop just slightly tension will remain positive slightly reduced course power off will have fairly precise control rate descent touchdown happy state affairs congratulations hard part almost over other hand ship leaped air flew level flight everywhere except wanted maneuvered like drunken cat chasing mouse etc have bit work engine quit did airplane pitch noseSeptember 1985 69 Yves Fernandez tears up skies France beautiful Scirocco Craft has Super tigre 46 power uses 3-biaded 11 x 6 prop tricycle gear Photo Claus Maikis young men Senior Junior Stunt Champions 83 Nats Reno NV Jimmy IdoClellan L California Nat Gifford R Massachusetts Jims plane Chipmunk Nats Tutor Photo Windy Urtnowski Continued page 147 Fancher Stunt secretl Reno Nats plane used method mount fuel tank idea stolen Stan Powell 1120 nylon bolt goes through brass tube soldered tank hardwood block other side nut holding Chuck Holtzappies lovely bride Pat holds ST 46-powered Jette Stunter weighs 50 oz sports Sig dope finish Chuck hard-working staff PAMPAs Stunt News Urtnowski photo detail addition aircraft display Hangars Three Four museum has library facility located second floor Old Firehouse Bldg can used modelers research pur poses daily 900 am 430 pm Copies data found can made nominal cost Please note library cannot research mail due limited staff research must done premises have specific questions about use either museum library William Kaiser curator secretary Jenrue Satora can reached 516 222-1190 during library hours listed above visit museum use library free would sug gest small donation services offered way funds obtained museum materials re quired continue restoration work Hints workshop Bob Furr Orbiting Eagles Omaha NE says having trouble using cyano acrylates super glues idea makes using Elmers Titebond glues balsa sheeting almost easy using super glues heat-shrink iron turned near its highest setting will set either glues seconds Just hold sheet ing flat hand go over area glue applied very slowly iron irons heat accel erates glues setting action Send CL Scale items building tips photos Bill Boss 77-06 269th St New Hyde Park NY 11040 CL Aerobatics/Fancher Continued page 69 up Did line tension nearly disappear Did landing spot just appear rather being selected case have tail-heavy airplane dont care CG exactly Fancher told put Add nose weight till dont no ... airplane flew much same previous example engine WEEE EU EKE U U U U U U U U U U U U U U U I U U U U U U U U U U U I I I EEEEEEu.. SIG CHAMPION FUEL FREIGHT ICOLLECTfl PINTI55GALDRUMj ID~ U $31U 10%$395I$29500 15%$41559OOU THE CHOICE OF CHAMPION FLYEIS Dont misled price alone model fuels same Some cut-rate mail order fuel outlets selling 10% fuel really contains about 8% nitro skimp costly nitro formulating fuel weight basis rather thaI traditional percent-of-volume method Also some mail order fuelsare blendedwith aslittleas 15% totaloil ThatsOKif yougeta perfect needlesettingeverytimebut otherwise lean run can easily ruin engine Cuts quality like make easy blend com petitively priced fuel really getting quality want over 20 years SIG has blending fuel finest quality ingredients available alcohol 995% pure very best grade available nitro use 100% pure get honest portion based % volume maximum lubrication get perfect 50/50 blend Bakers AA Castor Oil Klotz Techniplate Racing Oil protect expensive engines finest quality fuel can made price Dont take word try some ludge yourself U U U U U U See dealer first available order direct Call U 800 247 5008 toll free orders Catalog 47 $300 SIG MANUFACTURING CO Montezuma IA 50171 •Pmbrtnhaeeithustmtm E.EEE.EE... quit nose did pitch up line tension did decrease control glide jerky unsmooth control system likely too sensitive add weight nose Reduce line spacing handle depend ing severity problem Reduc ing spacing little noticeable early coarse ad justment would go no less time point move both lines equal amount may yet have bias line spacing nowhere near ready quit trimming airplane yet Finally ship pulled air grooved smoothly level flight responded slowly control inputs FREE SHIPPING ON ORDERS OVER $1000 % ITRO 5% 10% 15% 25% 35%$550 QUARTGALLON El 4-STROKE FUE $1350 $1550 NEW SIG $525 $595 U U U U I U U U U U m U U U U U U showed almost no interest cornered maneuvers problem bit complex upon engine flameout airplane noticeably drops nose must react fairly quickly pull up smooth glide line tension remains good can whip readily extend glide airplane almost certainly nose-heavy appropriate adjust ments should made Things try clude lighter muffler lighter spinner etc oras last resortadd weight tail until response rate correct preceding Case fits observed performanceexcept glide smooth controllable no abrupt tendency drop nose engine quits aVO th8ticdtr taG Ls rante Ignition Engine Parts Only have parts inventory prompt delivery Over 235 items Send $200 current catalog Both require Two Channel Radio Mini Servos 250 MAN BATT wood construction include hardware needed $2500 ea includes shipping UPS COO add $200 $600 plans CA add 6% Dealer Inquiries Invited LINDSEY MICRO PRODUCTS 160-A No Fairview Ave Suite 104 Goleta CA 93117 805 683 2042 After 5 pm Pacific September 1985 147 M52LMP1flAfl BALSARI TE R/C WONDER JUICE Balsartte makes covenng stick better also moisture-proofs wood adds little extra structural strength plus U prevents fuelcreep under seams U fuelproofs engine artments U attaches raw dacron silk paper tissue wood CGVERiTE 420 Babylon Rd Horsham PA 19044 handing bigger line major decals LISTING @F INSIGNIAS PRESSURE SENSITIVE WATER TRANSFER 7 GIANT SCALE 18 SHEETS US Cocarde del J US w/bars US WW British WW French WW German WW eets Nomenclature sheets 60 SIZE US Cocarde del J US w/bars British [ WW II roundel] Japanese German WW II Canadian late 1950s present j Polish German WW US WW British WW French WW Italian Swedish Israeli Nationalist China RussiaNomenclature sheets 40 SIZE36 SHEETS US Cocarde del US w/bars British WW II roundel J iapanese German WW II Canadian late 1950s present j Polish German WW US WW British WW French WW ltalian Swedish lsraeli Nationalist China Russia Nomenclature sheets PROPELLER DECALS Hamilton Standard Mc Cauley Falcon Hartzell Fahlin Pratt & Whitney logo KILL MARKINGS German American Japanese Tank Ship Bombing missions NOMENCLATURE SHEETS LETTERS NUMBERS AND STARS 10 colors variety sizes Distributor inquiries invited ~I major decals NORTHEAST SCREEN GRAPHICS 21 FISHER AVE EAST LOHGMEADOW MA 01828 TEL 413 5254118 likely have too insensitive con trol set-up Increase line spacing per flight until response improves However ship took off smoothly grooved level flight handled nicely after engine shutdown heaven forbid got light lines pitched up yet turns sluggishly unpredictably problem complicated situation like must deter what keeping airplane pitching rate desire have determined other means CG roughly correct smooth takeoff good groove level flight proper response engine shutdown simply adding tail weight isnt best solution Checking table May 1985 issue response rate see factors controlling pitch built plane tail volume tail effectiveness aspect ratio etc have couple aces hole however First try reducing ratio Flap Elevator travel Objective II item 4 accomplishes two things reduces amount flap travel thus reducing negative pitching moment same time increases amount Elevator Deflection item 11 given amount flap travel thereby increasing Tail Effectiveness item 3 Another very effective way increas ing Tail Effectiveness Sealing Hingeline item 7 between stab elevator Lifting surfaces troduce lift difference pressure between top bottom surface Whe9 pres sure higher side wil seek means available get lowerpressure area hingeline gap greater about 1% tail chord will significant leakage therefore loss lift Sealing gap will increase lift thereby Tail Effectiveness should help crease rate response Propellers item 8 Horsepower item 9 go hand hand forces retards response rate drag primarily induced drag must have adequate thrust overcome drag duced sharp maneuvers run Stunt engines classic manner U PO BOX 306TORANC5 CA 80510 well below peak-power rpm can increase airplane response rate increasing rpm engine thereby its thrust nitro and/or larger air intakes will increase power necessarily increasing airspeed Both will also increase fuel consumption however must used sparingly Smaller-diameter props very useful method increasing power will almost always improve turn rate Addi tional pitch will move air over tail thus increase its effectiveness however care must taken over load engine pitch will also crease airspeed engine can han dle load item 10 will also make airplane responsive assum ing control system has sufficient mechanical advantage overcome airloads flaps elevators final albeit distasteful approach increasing response rate either increase elevator size reduce flap size Use knives etc mandatory either case Yuucch Okay weve got thing gliding well turning great cant life us get fly straight level four six feet First remember CL plane especially light wing loading will naturally climb wind dive little downwind velocity wind adds subtracts airspeed therefore lift cant really trim out completely However remember comparatively nose-heavy airplane must fly slightly higher angle attack level flight compensate greater pitching moment about CG Therefore nose-heavy airplane will aggravate climb/dive syndrome wind Controversial believe still have problem hunting level flight lets consider handle neutral position Trim Objective item Handle 1 Any reasonably straight airplane should want fly straight level balance stable wants elevation different rule book altitude have handle trim-problem upright level flight airplane wants climb 148 Model Aviation HOBBY WORLD IMPORTS 1289 WESTHIEMER HOUSTON TEXAS 77077 713-487-2031 Please Call Prices Planes Boats Cars McDeI Nisturer Eq $2495 iol 1 595 plus postage & DINERS StoreMON-SAT10-6pm HoursSUNDAY12-Spin FULL LINE DISCOUNT HOBBY SHOP FAI RUBBER Sizes 114 3/16 1/8 3/32 1/16 042 thick pound box Price $1300 FREE4oz bottle SLICK rubber lube per box Postpaid UPS USA 65 FF kits intl Starduster Coupe Deville 4 Satellites mow avail Dragmaster Zingo FAI Power tilka Wakefield P30s 2 pacifier tanks Crocket hooks Slick lube Seelig & KSB timers Front ends 3 prop kits 2 kinds fuse winders kinds hardware Books much 1985 Catalog 75 Cal add 6% tax FAl Model Supply Matched Performance System TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELSK&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micrn-Balloons FILLER K&B SUPER POXY RESIN K&B SUPER POXY THINNER K&B SUPER POXY PRIMER K&B SUPER POXY PAINT K&B MIXING CUPS inverted wants dive shorten Down line bit flight problem should disappear Use same solution reverse opposite condition pildts mistakenly fly han dle relaxed natural position neutral think mistake both problem Turn Uniformi ty later blamed thing doesnt respond handle adjustment have couple zingers Leadout Position Trim Objective item 4 too far aft vertical component P-Factor item 10 produced due airplane flying nose pointing outward line tangent circle lower half prop arc upright will produce thrust top ship will want climb Control input must resist Again reverse true plane flying inverted leadout-too-far-aft problem exists probably manifesting itself another form instability tight cor ners airplane will jerk lines fashion similar hinging will felt pilot seen As leadouts moved forward jerk should disap pear hunting level flight should decrease hope have last defense sealing flap hingeilne item 5 have personally fought sealing flaps over recent years because felt unless stalling ship corners have no need additional lift primary byproduct sealing hingeline still feel state ment true witnessed near miracleat Renoone able repeat Gary McClellans three-year-old Stunter steadfastly resisted best efforts eliminate almost uncontrollable hunting problem given up just flew way. embarrass ment us both Yet arrival Reno ever since airplane flew like rails level flight finally threw ego winds asked Gary what earth done turns out sealed flap hingeline get little lift high density-altitude Lo behold totally cured hunting DIVISION OF BAR/RICH SALES CO #2 FAIRWAY HANNIBAL MO 63401 13141 221-8803 aster MANUFACTURERS OF SPORT PATTERN STINGER II PEPPERMINT PATTIE 60 TAN PEPPERMINT PATTIE 40SPORT/SCALE PEPPERMINT PATTIE 15 HIPERBIPE last two days Nats Cele bration started hunt badly something never done before Inspection after Nats course revealed broken hinge allowing flap flex open hingeline gap Repairing hinge concurrently sealing hingeline eliminated hunt Take what its worth last element discussing Stability airplane doesnt come out corners hard flat turns either too much enough hunts experiencing another form stability problem controver sial opinion conventional solu tion adding nose weight totally wrong unless have other indications CG actually being too far aft Moving CG forward increases pitching moment therefore amount control input required given corner creases feel better solution reduce line spacing handle move CG aft little some point plane will exit corner hard flat repeatable fashion As always avoid extremes little time Ted Fancher 1S8 Flying Cloud Isle Foster City CA 94404 CL Navy Carrier/Perry Continued page 70 ten rule line actual practice other new rule exempts Carrier models noise-abatement regulations Although Executive Council could enact rule desire above Con test Boards objections hope similar ruling CL Contest Board Carrier other CL events will emphasize Council desir ability including Contest Boards effort apply noise-abatement regulations competitive events Previously-published information left Councils intent very much doubt issue Hobby Lobbys MINI-SERIES R/CI HLRM1 320 Mini-Series F-4 PHANTOM$4400 Semi scale balsa 35 wingspan 2 3 4 channels 09 engine Superb flyer Can built limited space September 1985 149 Order Send price kit plus $390 prepaid credit cerd orders Send $650 000 shipments Landing interpretation letter George Leib High-Low-Landing