/ iiii ij Scale Bill Boss INSTRUMENTS AND PLACARDS Have ever needed special instrument placard put final touch Scale cockpit course have instruments placards manu factured us readily available local hobby shops can also obtain odd instruments cutting out strument panels seen advertisements magazines such Flying Air Prog ress However have gone through above sources still cant find instrument want dont lose heart can always make/draw up self accompanying photo rear cockpit instrument panel 20-yearold PT-19 took second place 1965 Nats Willow Grove shows temperature gauge right Turn Bank indicator re quired panel could found among manufactured items instrument made rather easily after being told friend days artist modeler procedure rather simple First obtain almost art supply store piece material called scratch board piece 8x10 inches will sufficient needs scratch board actually board rather cardboard-like substance Control Line biplanes have poor track record comes top wings staying place drawing R shows easy strong method attaching wing/cabane struts wing structure two successfui CL bipes shown below entered Sport Scale Garden State Circle Burners annual Fail Scale Rally LR Smith Miniplane Junior contes tant Paul Marino Flushing NY built Sig kit has 05 40 power Beech Staggerwin built Open member Ralph Luik Saddlebrook NJ has Fox 59 power white color has chalk-type sur face side Also obtain small bot tle black India ink will also need fine sewing needle pin vise similar instrument mount needle now ready make own instruments first step cut off small piece chalk board about 2x4 inches naint chalky surface India ink Give two three coats neces sary get good black Allow dry thoroughly Now determine size instrument required using needle scribe circle lightly blackened chalk board surface circle can made using appropriate-size instrument ring such provided Tatone instruments guide Continued page 157 October 1985 69 Scale instruments cock p sometimes cant find what need hobby shop magazine photo What Make yourself Bill tells made temperature gauge Oust right turn & bank indicator rear cockpit 1965 Natspiacing PT19 also made Flap Warning placard RIB lowering tank/engine relationship un til trick users uniflow tank systems tank has shimmed far possible run still uneven open up tank move uniflow vent direction wish move tank vent tank far engine concerned moving has same affect moving entire tank long last lets discuss final items flight trim Tracking Uniformity Turn final items Trim Table turn characteristics must trimmed less encounter order severity classic methods attacking un equal rates turn inside versus outside either bias elevators relation flaps direction proper turn less desirable mind make handle arm line spacing poorer direction longer consider both methods camouflage prefer used last resort fact opinion biased handle arms will create almost problems solve would always opt bias elevators becomes necessary Well what heck suggest ask First suggest making sure wings level during maneuvers ship banks out upright invert ed vice versa tension will better banked out Response will positive airplane will prob ably turn tighter Second suggest seal elevator hingeline experience airplane have sealed hingeline has become uniform rate turn first time tried increase turn rate Intimidation flying two years about 3/8 inch Down elevator cranked After sealing trimmed out Misset handle neutral positions will often result ship appears pilot turn well direction usually outsides because han dle held naturally neutral some down bias Often trimming gradual ly back vertical neutral will result the 15th consecutive year covering continues go easier & last longer rest 9-. Congratulations Super Coverite magical reincarnation outside turn else has failed make turns equal now time bias elevator direction poorer turn airborne controls arent adjustable youll have bias handle Make line spacing greater direction poorer turn Usually trimming stability response rate turn uniformity will automatically result acceptable tracking maneuvers still have problems consider following try different props Props different manufacture same will oftentimes respond differently Props washed out less pitch tips will generally track better although sometimes little loss line tension above 450 flap per degree elevator will help somewhat tracking have partial-span flaps problem severe can almost guarantee increasing flap span will improve tracking Well gang about does now know everything Fancher knows about designing trimming Stunt ship Whether thats good bad anyones guess including yours Most gospel Some controversial some just plain simply way Fancher sees hope find helpful way couple items Trim Table May 1985 issue mention Wind effects asterisk near future Im going similar project actually flying pattern time Ill covering winds effect length hope look forward Ted Fancher 158 Flying Cloud Isle Foster City CA 94404 CL Scale/Boss Continved page 69 will note scribe circle ink scratched off board leaving white circle point simply continue Bucker Jungmeisier For 049 Engines Ingspan Biplane Suitable 2-4 Channel B/C systems classic its kind An agile biplane tor aerobatics As model really pertorms excellent planlorm durable enjoyable sPip tly RIG contest enests Kit sire @ Weve sot whale line 51 old lavoriteS Please send hOe tsr nor Fl0linn caralag $2995 Phone 17031 273-9593 Onalers OlsirihotOrn nailed FLYLINE MODELS INC PO Box 2136 Fairfax Virginia 22031 4 7 SUPER LOW PRICES *Radios &* Accessories FUTABAO AIRTRONICS 0 KRAFT *Kits Hardware &* Field Accessories Brands 0 Starters 0 Field chargers @ Tachometers *Engines* 0050 SUPER TIGER SAITO 0 ENYA 0 Y5 QUADRA 0 ZENOAH MONTHLY SPECIAL FUTABA PCM $47800 MAIL ORDERS SAME DAY SERVICE S MODEL EXPERTS TO HELP YOU 0 OPEN 7 DAYS CALL US TOLL FREE 800-358-0766 OR WRITE US AT THE LEADING EDGE 1-A Lakewood Plaza Carpentersville IL 60110 October 1985 157 Heres What Youve Been Waiting For. DIRECTDIRECT ONLY BRITAINS MOST POPULAR HELICOPTER ONLY Hughes 300 28 -45 Motor pan 224g5 METAL GEARS MAIN ROTOR & TAIL FAN COOLING ALL MODELS WITH COLLECTIVE PITCH LOW COST PARTS EASY TO BUILD 109 COMPLETE WITH RETRACTS IN KIT Dell 47-G 40 45 Motor pan 259s Send 200 full formation Pack Color Photos o Available 634 ROY HUIE RD 18-A RIVERDALE GA 30274 MON- FRI 404 991-1995 $ AM- 8 PM scratch surface board within scribed circle appropriate places until have created desired instrument Because small size instruments will trying create suggest view work through high-powered magnifying glass use jewelers loupe doing scribing process am sure first attempts will like rather poor little practice will able make numbers letters etc turning out some fairly decent-looking instruments finally have instrument completed satisfaction carefully cut out X-Acto knife razor blade scissors mount its instrument ring Cockpit placards can also made using same procedure Note flap warning placard accompa nying photo Biplane self-destruction Over past several years have either heard about witnessed destruction various biplanesall caused planes upper wings shearing off during maneuvers such wingovers loops during maneuvers extreme FLYING NEAR AIRPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY lifting loads placed models wing connecting struts spectacular wing-shearings have witnessed 1980 Nats flying buddy Pete Bianchini put Liberty Sport loop plane got top loop just fine split second later upper wing gone plane turned what loop perfect Figure-9 straight con crete Needless say little left stuff remains nearby trash can Pete has since built another Liberty Sport some minor modifications upper-wing installation accompanying sketch shows installa tion wing strut simplicity type would seen Staggerwing Beechcraft same basic installa tion can applied biplane wing struts used Pete second Liberty Sport Please note upper end strut installation shown sketch again sketch simplicity what done top should also done lower end strut first step make set ribs two ply balsa shown sketch using wing rib area wing struts stalled pattern Based size/ weight model ply ribs could made l/32-in 1/8-in ply balsa rib should cut material same thickness wing strut will used notched proper locations acceptance struts ribs cut out center rib properly notched glue together sandwichstyle shown sketch Next place hardwood wing struts notches drill holes through assembly hole passes through center portion strut inserted rib assembly see sketch hole should sized according width strut An example might several struts 3/8-in 1/2-in wide might want use 1/16-in 3/32-in dowel pegs large single struts used such Beechcraft pegs 1/8-in dowel larger might used struts have fitted drilled newly-made ribs can stalled proper locations wing final assembly model done have glue pin struts place both upper lower wing assemblies end result should provide wing assembly will withstand forces maneuvers Special note Information pictures column have coming very slowly late share some ideas pictures latest C S II S LIE S I BENTOM BROWN JR LAMPHELL COMET COVERITE COX DUBRO EASY BUILT MODELS ENYA FAI FLYLINE FOX- GOLDBERG GOLDEN AGE REPRO IGENE DUBOIS GUILLOW- K&B- K&S L R MRC OS MAX PACTRA PECK-POLYMER PERFECT R N MODELS SEAGLEN SIG STERLING SULLIVAN SUPER TIGRE TAFFINDER TELCO TOP ELITE TREXLER 1WILLIAMS & OTHERS IESTES MODEL ROCKETS Seod SIOO Cash Check Stamps foe ocr 44 page tabload 51CC DISCOUNT Catalog 900 illustrations over 700 Kits choose IMAILORDER PHONEORDER IN STORE PENN VALLEY HONEY CENTER 837 W Main St LansdalePa 19446 lbu Invited join NATIONAL SOARING SOCIETY OFFICIAL AMA SOARING SPECIAL INTERESTOROUP a YEARLY NSS SOAR-IN TOURNAMENTS a NATION-WIDE EXCELLENCE AWARDS PROGRAM EXCELLENT SI-MONThLY NEWSLETTER a NSS FULLY SUPPORTS ThE F3B SOARING TEAM & LSF SOARING PROGRAM a NSS IS INVOLVED IN ThE ORGANIZATION AND OVERSEEING OF ThE SOARING PORTION OF AMA NATS INCLUDING AWARDS BANQUET YEARLY DUES ARE $1200 SPECIAL FAMILY RATES NSS OFFICERS ARE FROM ALL 11 DISTRICTS Information Contact NSS Sacretaryrhaaurer R DICK CROWLEY P0 Box 440342 Aurora CO 80044 158 Model Aviation Custom Built 3ls Mode 2036 N Thorns Ave Fresno CA 93704 8 am 6pmOrder Phone 209 233-1050ask Bill If you LOVE fly HATE build Contact - have Solution problem Kits Custom Built Order Sanded Ready Cover AndrewsGotdbergGreat PlaneaeEtcs - IF1yWhatIDuitd VISA MORLEY S/F Agusta 109 40 - 45 Motor pan 34995 projects rest Scale model ing world Send ideas photos Bill Boss 77-06 269th St New Hyde Park NY 11040 CL Racing/Ballard Continued page 70 sealed containers supplied Racing events Propeller reevaluation subsequent changes mandatory 10% fuel rule great deal hand-molded meticulously-prepared propellers became obsolete especially evident both Scale Racing Rat Racing think safe say Scale Racing peo pie running between 60% 70% nitro drop 10% heavily-pitched propellers range 7 x 5 7 x 5A pitch found totally unsatisfactory loss range 3000 rpms going 70% nitro 10% nitro using 5 5% pitch must remember majority fiberglass carbon fiber propellers originally virtually completed prod ucts required pitch extreme thinness propeller blade allowing very little area left repitch blade found Scale Racers needed completely new propeller design much lower pitch fiberglass car bon fiber copy Taipan 7 x 5 found have enough blade area allow changing pitch approximately 7 x 4-to-4A pitch considerable amount time saved utilizing testing both FAL Combat competitors well RC Quarter Midget racers Both groups have spent con siderable amount time testing propel lers achieve maximum rpm RC Quarter Midget has fuel restrictions some time few competitors have purchased some very lowpitched Free Flight props 7 x 3 A-to-4 pitch range careful workup engine testing resulted some dramatically improved rpm airspeeds reduction airspeed rpm 40 Rat engine quite dramatic Scale Racing certainly re quired complete propeller evaluation past 55% 65% nitro used 7% 8-inch-pitch propellers allow engine unload air found immediately 10% nitro engine would unload satisfactorily airspeed down considerably Fortunately fiberglass Rat Race pro pellers available racers have enough blade area allow de-pitching 6% 7% pitch immediately found OS 40 Pylon engine capable pulling 7%-pitch propeller whereas K&B 40 ST 40 required slightly less pitchabout / % blade diameter approximately eight inches found U •uummuEEEEEEEU-E--U-U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U K U U U U U. .EEEEE SIG CHAMPION FUEL FREE SHIPPING ON ORDERS OVER $1000 % NITRO 0% PAl 5% 10% 15% 25% 35% 10% 15% PINT $295 $350 $395 $415 $475 $550 $395 $415 QUARTGALLON $425$ 995 $495 $1195 $525 $1395 $595 $1595 $695 $1995 $795 $2395 NEW SIG 4-STROKE FUE $525$1350 $595$1550 L FREIGHT COLLECT 55 GAL DRUM $17500 $24500 $31000 $37400 $50000 $64000 $29500 $35900 U I U U U I THE CHOICE OF CHAMPION FLYERS Dont misled price alone model fuels same Some cut-rate mail order fuel Out selling 10% fuel really contains about 8% nitro skimp costly nitro form g fuel weight basis rather traditional percent-of-volume method Also some ma 0 der fuels blended little 15% total oil Thats OKif geta perfect needle setting everytime 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 alcoho 5 995% pure very best grade available nitro use 100% pure get honest port based % volume maximum lubrication get perfect 50150 blend Bakers AA Castor Oil Klotz Techniplate Racing Oil protect expensive engines finest quality fuel m can made price Dont take word try some judge yourself U See dealer first available order direct Call K 800-247-5008 toll free orders Catalog 47 $3 00 SIG MANUFACTURING CO Montezuma IA 50i7l Prices subject te change wrthOet netice EEEuEEuEEuEUEEEEE satisfactory addition smallblade-area propellers seemed develop highest airspeed Field safety Since speed both Slow Rat Rat racers 120-140 tense field safety paramount Midwest area racing competitors have purchased own battery-operated bullhorn use starting judge addition competitors have found ingenious ways protect arms heavy starting batteries also fingers well-filed fiberglass carbon fiber propellers Lately have seen some rather ingenious holders batteries made archery arm supports U U U I I I I I I I U U also finger protectors made archery finger protectors Several competitors have using wellpadded glove thumb third fourth fingers cut off allowing free move ment hand first second fingers left glove allows easier movement should plug change prop relocation wrench necessary Obviously clearly-visible circle mark ings mandatory allow pilot reference point pit man area can safely catch model dur ing pit stops refuel take off being endangered other aircraft land ing taking off material circle/ October 1985 159 /N 201 SE 12th Street Pompano Beach FL 33080 306-7857978 ENGINEERING THE LANDING GEAR PEOPLE lint @1 kil Imodlog gears dont Ill foor kiggle properly o & ii Engihoonog can solve prublenis * Coals hoill needs & specs yuarsoleod hI * Strong & dorohle wilhsland lho loighuel aiding * 0 & 0 Engineeriog gear will work & koep tour kiggie Ily log * In stock roplacoeoel gear br 051 popolar models Byron Pith Christen Eagle CAP 21 Balsa USA J-3 CUB Air Tech Pawns aed Eagle gsa Big Slick Ckawp Citakna R & B models Snapper Stiogor Snapper Ton Once have tried best wont settle anything Kin-Craft quality products N I1IIII4AETWG 4 411flabby fydarb Look complete line Isv ho hbv shop send catalogue
Edition: Model Aviation - 1985/10
Page Numbers: 69, 157, 158, 159
/ iiii ij Scale Bill Boss INSTRUMENTS AND PLACARDS Have ever needed special instrument placard put final touch Scale cockpit course have instruments placards manu factured us readily available local hobby shops can also obtain odd instruments cutting out strument panels seen advertisements magazines such Flying Air Prog ress However have gone through above sources still cant find instrument want dont lose heart can always make/draw up self accompanying photo rear cockpit instrument panel 20-yearold PT-19 took second place 1965 Nats Willow Grove shows temperature gauge right Turn Bank indicator re quired panel could found among manufactured items instrument made rather easily after being told friend days artist modeler procedure rather simple First obtain almost art supply store piece material called scratch board piece 8x10 inches will sufficient needs scratch board actually board rather cardboard-like substance Control Line biplanes have poor track record comes top wings staying place drawing R shows easy strong method attaching wing/cabane struts wing structure two successfui CL bipes shown below entered Sport Scale Garden State Circle Burners annual Fail Scale Rally LR Smith Miniplane Junior contes tant Paul Marino Flushing NY built Sig kit has 05 40 power Beech Staggerwin built Open member Ralph Luik Saddlebrook NJ has Fox 59 power white color has chalk-type sur face side Also obtain small bot tle black India ink will also need fine sewing needle pin vise similar instrument mount needle now ready make own instruments first step cut off small piece chalk board about 2x4 inches naint chalky surface India ink Give two three coats neces sary get good black Allow dry thoroughly Now determine size instrument required using needle scribe circle lightly blackened chalk board surface circle can made using appropriate-size instrument ring such provided Tatone instruments guide Continued page 157 October 1985 69 Scale instruments cock p sometimes cant find what need hobby shop magazine photo What Make yourself Bill tells made temperature gauge Oust right turn & bank indicator rear cockpit 1965 Natspiacing PT19 also made Flap Warning placard RIB lowering tank/engine relationship un til trick users uniflow tank systems tank has shimmed far possible run still uneven open up tank move uniflow vent direction wish move tank vent tank far engine concerned moving has same affect moving entire tank long last lets discuss final items flight trim Tracking Uniformity Turn final items Trim Table turn characteristics must trimmed less encounter order severity classic methods attacking un equal rates turn inside versus outside either bias elevators relation flaps direction proper turn less desirable mind make handle arm line spacing poorer direction longer consider both methods camouflage prefer used last resort fact opinion biased handle arms will create almost problems solve would always opt bias elevators becomes necessary Well what heck suggest ask First suggest making sure wings level during maneuvers ship banks out upright invert ed vice versa tension will better banked out Response will positive airplane will prob ably turn tighter Second suggest seal elevator hingeline experience airplane have sealed hingeline has become uniform rate turn first time tried increase turn rate Intimidation flying two years about 3/8 inch Down elevator cranked After sealing trimmed out Misset handle neutral positions will often result ship appears pilot turn well direction usually outsides because han dle held naturally neutral some down bias Often trimming gradual ly back vertical neutral will result the 15th consecutive year covering continues go easier & last longer rest 9-. Congratulations Super Coverite magical reincarnation outside turn else has failed make turns equal now time bias elevator direction poorer turn airborne controls arent adjustable youll have bias handle Make line spacing greater direction poorer turn Usually trimming stability response rate turn uniformity will automatically result acceptable tracking maneuvers still have problems consider following try different props Props different manufacture same will oftentimes respond differently Props washed out less pitch tips will generally track better although sometimes little loss line tension above 450 flap per degree elevator will help somewhat tracking have partial-span flaps problem severe can almost guarantee increasing flap span will improve tracking Well gang about does now know everything Fancher knows about designing trimming Stunt ship Whether thats good bad anyones guess including yours Most gospel Some controversial some just plain simply way Fancher sees hope find helpful way couple items Trim Table May 1985 issue mention Wind effects asterisk near future Im going similar project actually flying pattern time Ill covering winds effect length hope look forward Ted Fancher 158 Flying Cloud Isle Foster City CA 94404 CL Scale/Boss Continved page 69 will note scribe circle ink scratched off board leaving white circle point simply continue Bucker Jungmeisier For 049 Engines Ingspan Biplane Suitable 2-4 Channel B/C systems classic its kind An agile biplane tor aerobatics As model really pertorms excellent planlorm durable enjoyable sPip tly RIG contest enests Kit sire @ Weve sot whale line 51 old lavoriteS Please send hOe tsr nor Fl0linn caralag $2995 Phone 17031 273-9593 Onalers OlsirihotOrn nailed FLYLINE MODELS INC PO Box 2136 Fairfax Virginia 22031 4 7 SUPER LOW PRICES *Radios &* Accessories FUTABAO AIRTRONICS 0 KRAFT *Kits Hardware &* Field Accessories Brands 0 Starters 0 Field chargers @ Tachometers *Engines* 0050 SUPER TIGER SAITO 0 ENYA 0 Y5 QUADRA 0 ZENOAH MONTHLY SPECIAL FUTABA PCM $47800 MAIL ORDERS SAME DAY SERVICE S MODEL EXPERTS TO HELP YOU 0 OPEN 7 DAYS CALL US TOLL FREE 800-358-0766 OR WRITE US AT THE LEADING EDGE 1-A Lakewood Plaza Carpentersville IL 60110 October 1985 157 Heres What Youve Been Waiting For. DIRECTDIRECT ONLY BRITAINS MOST POPULAR HELICOPTER ONLY Hughes 300 28 -45 Motor pan 224g5 METAL GEARS MAIN ROTOR & TAIL FAN COOLING ALL MODELS WITH COLLECTIVE PITCH LOW COST PARTS EASY TO BUILD 109 COMPLETE WITH RETRACTS IN KIT Dell 47-G 40 45 Motor pan 259s Send 200 full formation Pack Color Photos o Available 634 ROY HUIE RD 18-A RIVERDALE GA 30274 MON- FRI 404 991-1995 $ AM- 8 PM scratch surface board within scribed circle appropriate places until have created desired instrument Because small size instruments will trying create suggest view work through high-powered magnifying glass use jewelers loupe doing scribing process am sure first attempts will like rather poor little practice will able make numbers letters etc turning out some fairly decent-looking instruments finally have instrument completed satisfaction carefully cut out X-Acto knife razor blade scissors mount its instrument ring Cockpit placards can also made using same procedure Note flap warning placard accompa nying photo Biplane self-destruction Over past several years have either heard about witnessed destruction various biplanesall caused planes upper wings shearing off during maneuvers such wingovers loops during maneuvers extreme FLYING NEAR AIRPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY lifting loads placed models wing connecting struts spectacular wing-shearings have witnessed 1980 Nats flying buddy Pete Bianchini put Liberty Sport loop plane got top loop just fine split second later upper wing gone plane turned what loop perfect Figure-9 straight con crete Needless say little left stuff remains nearby trash can Pete has since built another Liberty Sport some minor modifications upper-wing installation accompanying sketch shows installa tion wing strut simplicity type would seen Staggerwing Beechcraft same basic installa tion can applied biplane wing struts used Pete second Liberty Sport Please note upper end strut installation shown sketch again sketch simplicity what done top should also done lower end strut first step make set ribs two ply balsa shown sketch using wing rib area wing struts stalled pattern Based size/ weight model ply ribs could made l/32-in 1/8-in ply balsa rib should cut material same thickness wing strut will used notched proper locations acceptance struts ribs cut out center rib properly notched glue together sandwichstyle shown sketch Next place hardwood wing struts notches drill holes through assembly hole passes through center portion strut inserted rib assembly see sketch hole should sized according width strut An example might several struts 3/8-in 1/2-in wide might want use 1/16-in 3/32-in dowel pegs large single struts used such Beechcraft pegs 1/8-in dowel larger might used struts have fitted drilled newly-made ribs can stalled proper locations wing final assembly model done have glue pin struts place both upper lower wing assemblies end result should provide wing assembly will withstand forces maneuvers Special note Information pictures column have coming very slowly late share some ideas pictures latest C S II S LIE S I BENTOM BROWN JR LAMPHELL COMET COVERITE COX DUBRO EASY BUILT MODELS ENYA FAI FLYLINE FOX- GOLDBERG GOLDEN AGE REPRO IGENE DUBOIS GUILLOW- K&B- K&S L R MRC OS MAX PACTRA PECK-POLYMER PERFECT R N MODELS SEAGLEN SIG STERLING SULLIVAN SUPER TIGRE TAFFINDER TELCO TOP ELITE TREXLER 1WILLIAMS & OTHERS IESTES MODEL ROCKETS Seod SIOO Cash Check Stamps foe ocr 44 page tabload 51CC DISCOUNT Catalog 900 illustrations over 700 Kits choose IMAILORDER PHONEORDER IN STORE PENN VALLEY HONEY CENTER 837 W Main St LansdalePa 19446 lbu Invited join NATIONAL SOARING SOCIETY OFFICIAL AMA SOARING SPECIAL INTERESTOROUP a YEARLY NSS SOAR-IN TOURNAMENTS a NATION-WIDE EXCELLENCE AWARDS PROGRAM EXCELLENT SI-MONThLY NEWSLETTER a NSS FULLY SUPPORTS ThE F3B SOARING TEAM & LSF SOARING PROGRAM a NSS IS INVOLVED IN ThE ORGANIZATION AND OVERSEEING OF ThE SOARING PORTION OF AMA NATS INCLUDING AWARDS BANQUET YEARLY DUES ARE $1200 SPECIAL FAMILY RATES NSS OFFICERS ARE FROM ALL 11 DISTRICTS Information Contact NSS Sacretaryrhaaurer R DICK CROWLEY P0 Box 440342 Aurora CO 80044 158 Model Aviation Custom Built 3ls Mode 2036 N Thorns Ave Fresno CA 93704 8 am 6pmOrder Phone 209 233-1050ask Bill If you LOVE fly HATE build Contact - have Solution problem Kits Custom Built Order Sanded Ready Cover AndrewsGotdbergGreat PlaneaeEtcs - IF1yWhatIDuitd VISA MORLEY S/F Agusta 109 40 - 45 Motor pan 34995 projects rest Scale model ing world Send ideas photos Bill Boss 77-06 269th St New Hyde Park NY 11040 CL Racing/Ballard Continued page 70 sealed containers supplied Racing events Propeller reevaluation subsequent changes mandatory 10% fuel rule great deal hand-molded meticulously-prepared propellers became obsolete especially evident both Scale Racing Rat Racing think safe say Scale Racing peo pie running between 60% 70% nitro drop 10% heavily-pitched propellers range 7 x 5 7 x 5A pitch found totally unsatisfactory loss range 3000 rpms going 70% nitro 10% nitro using 5 5% pitch must remember majority fiberglass carbon fiber propellers originally virtually completed prod ucts required pitch extreme thinness propeller blade allowing very little area left repitch blade found Scale Racers needed completely new propeller design much lower pitch fiberglass car bon fiber copy Taipan 7 x 5 found have enough blade area allow changing pitch approximately 7 x 4-to-4A pitch considerable amount time saved utilizing testing both FAL Combat competitors well RC Quarter Midget racers Both groups have spent con siderable amount time testing propel lers achieve maximum rpm RC Quarter Midget has fuel restrictions some time few competitors have purchased some very lowpitched Free Flight props 7 x 3 A-to-4 pitch range careful workup engine testing resulted some dramatically improved rpm airspeeds reduction airspeed rpm 40 Rat engine quite dramatic Scale Racing certainly re quired complete propeller evaluation past 55% 65% nitro used 7% 8-inch-pitch propellers allow engine unload air found immediately 10% nitro engine would unload satisfactorily airspeed down considerably Fortunately fiberglass Rat Race pro pellers available racers have enough blade area allow de-pitching 6% 7% pitch immediately found OS 40 Pylon engine capable pulling 7%-pitch propeller whereas K&B 40 ST 40 required slightly less pitchabout / % blade diameter approximately eight inches found U •uummuEEEEEEEU-E--U-U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U K U U U U U. .EEEEE SIG CHAMPION FUEL FREE SHIPPING ON ORDERS OVER $1000 % NITRO 0% PAl 5% 10% 15% 25% 35% 10% 15% PINT $295 $350 $395 $415 $475 $550 $395 $415 QUARTGALLON $425$ 995 $495 $1195 $525 $1395 $595 $1595 $695 $1995 $795 $2395 NEW SIG 4-STROKE FUE $525$1350 $595$1550 L FREIGHT COLLECT 55 GAL DRUM $17500 $24500 $31000 $37400 $50000 $64000 $29500 $35900 U I U U U I THE CHOICE OF CHAMPION FLYERS Dont misled price alone model fuels same Some cut-rate mail order fuel Out selling 10% fuel really contains about 8% nitro skimp costly nitro form g fuel weight basis rather traditional percent-of-volume method Also some ma 0 der fuels blended little 15% total oil Thats OKif geta perfect needle setting everytime 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 alcoho 5 995% pure very best grade available nitro use 100% pure get honest port based % volume maximum lubrication get perfect 50150 blend Bakers AA Castor Oil Klotz Techniplate Racing Oil protect expensive engines finest quality fuel m can made price Dont take word try some judge yourself U See dealer first available order direct Call K 800-247-5008 toll free orders Catalog 47 $3 00 SIG MANUFACTURING CO Montezuma IA 50i7l Prices subject te change wrthOet netice EEEuEEuEEuEUEEEEE satisfactory addition smallblade-area propellers seemed develop highest airspeed Field safety Since speed both Slow Rat Rat racers 120-140 tense field safety paramount Midwest area racing competitors have purchased own battery-operated bullhorn use starting judge addition competitors have found ingenious ways protect arms heavy starting batteries also fingers well-filed fiberglass carbon fiber propellers Lately have seen some rather ingenious holders batteries made archery arm supports U U U I I I I I I I U U also finger protectors made archery finger protectors Several competitors have using wellpadded glove thumb third fourth fingers cut off allowing free move ment hand first second fingers left glove allows easier movement should plug change prop relocation wrench necessary Obviously clearly-visible circle mark ings mandatory allow pilot reference point pit man area can safely catch model dur ing pit stops refuel take off being endangered other aircraft land ing taking off material circle/ October 1985 159 /N 201 SE 12th Street Pompano Beach FL 33080 306-7857978 ENGINEERING THE LANDING GEAR PEOPLE lint @1 kil Imodlog gears dont Ill foor kiggle properly o & ii Engihoonog can solve prublenis * Coals hoill needs & specs yuarsoleod hI * Strong & dorohle wilhsland lho loighuel aiding * 0 & 0 Engineeriog gear will work & koep tour kiggie Ily log * In stock roplacoeoel gear br 051 popolar models Byron Pith Christen Eagle CAP 21 Balsa USA J-3 CUB Air Tech Pawns aed Eagle gsa Big Slick Ckawp Citakna R & B models Snapper Stiogor Snapper Ton Once have tried best wont settle anything Kin-Craft quality products N I1IIII4AETWG 4 411flabby fydarb Look complete line Isv ho hbv shop send catalogue
Edition: Model Aviation - 1985/10
Page Numbers: 69, 157, 158, 159
/ iiii ij Scale Bill Boss INSTRUMENTS AND PLACARDS Have ever needed special instrument placard put final touch Scale cockpit course have instruments placards manu factured us readily available local hobby shops can also obtain odd instruments cutting out strument panels seen advertisements magazines such Flying Air Prog ress However have gone through above sources still cant find instrument want dont lose heart can always make/draw up self accompanying photo rear cockpit instrument panel 20-yearold PT-19 took second place 1965 Nats Willow Grove shows temperature gauge right Turn Bank indicator re quired panel could found among manufactured items instrument made rather easily after being told friend days artist modeler procedure rather simple First obtain almost art supply store piece material called scratch board piece 8x10 inches will sufficient needs scratch board actually board rather cardboard-like substance Control Line biplanes have poor track record comes top wings staying place drawing R shows easy strong method attaching wing/cabane struts wing structure two successfui CL bipes shown below entered Sport Scale Garden State Circle Burners annual Fail Scale Rally LR Smith Miniplane Junior contes tant Paul Marino Flushing NY built Sig kit has 05 40 power Beech Staggerwin built Open member Ralph Luik Saddlebrook NJ has Fox 59 power white color has chalk-type sur face side Also obtain small bot tle black India ink will also need fine sewing needle pin vise similar instrument mount needle now ready make own instruments first step cut off small piece chalk board about 2x4 inches naint chalky surface India ink Give two three coats neces sary get good black Allow dry thoroughly Now determine size instrument required using needle scribe circle lightly blackened chalk board surface circle can made using appropriate-size instrument ring such provided Tatone instruments guide Continued page 157 October 1985 69 Scale instruments cock p sometimes cant find what need hobby shop magazine photo What Make yourself Bill tells made temperature gauge Oust right turn & bank indicator rear cockpit 1965 Natspiacing PT19 also made Flap Warning placard RIB lowering tank/engine relationship un til trick users uniflow tank systems tank has shimmed far possible run still uneven open up tank move uniflow vent direction wish move tank vent tank far engine concerned moving has same affect moving entire tank long last lets discuss final items flight trim Tracking Uniformity Turn final items Trim Table turn characteristics must trimmed less encounter order severity classic methods attacking un equal rates turn inside versus outside either bias elevators relation flaps direction proper turn less desirable mind make handle arm line spacing poorer direction longer consider both methods camouflage prefer used last resort fact opinion biased handle arms will create almost problems solve would always opt bias elevators becomes necessary Well what heck suggest ask First suggest making sure wings level during maneuvers ship banks out upright invert ed vice versa tension will better banked out Response will positive airplane will prob ably turn tighter Second suggest seal elevator hingeline experience airplane have sealed hingeline has become uniform rate turn first time tried increase turn rate Intimidation flying two years about 3/8 inch Down elevator cranked After sealing trimmed out Misset handle neutral positions will often result ship appears pilot turn well direction usually outsides because han dle held naturally neutral some down bias Often trimming gradual ly back vertical neutral will result the 15th consecutive year covering continues go easier & last longer rest 9-. Congratulations Super Coverite magical reincarnation outside turn else has failed make turns equal now time bias elevator direction poorer turn airborne controls arent adjustable youll have bias handle Make line spacing greater direction poorer turn Usually trimming stability response rate turn uniformity will automatically result acceptable tracking maneuvers still have problems consider following try different props Props different manufacture same will oftentimes respond differently Props washed out less pitch tips will generally track better although sometimes little loss line tension above 450 flap per degree elevator will help somewhat tracking have partial-span flaps problem severe can almost guarantee increasing flap span will improve tracking Well gang about does now know everything Fancher knows about designing trimming Stunt ship Whether thats good bad anyones guess including yours Most gospel Some controversial some just plain simply way Fancher sees hope find helpful way couple items Trim Table May 1985 issue mention Wind effects asterisk near future Im going similar project actually flying pattern time Ill covering winds effect length hope look forward Ted Fancher 158 Flying Cloud Isle Foster City CA 94404 CL Scale/Boss Continved page 69 will note scribe circle ink scratched off board leaving white circle point simply continue Bucker Jungmeisier For 049 Engines Ingspan Biplane Suitable 2-4 Channel B/C systems classic its kind An agile biplane tor aerobatics As model really pertorms excellent planlorm durable enjoyable sPip tly RIG contest enests Kit sire @ Weve sot whale line 51 old lavoriteS Please send hOe tsr nor Fl0linn caralag $2995 Phone 17031 273-9593 Onalers OlsirihotOrn nailed FLYLINE MODELS INC PO Box 2136 Fairfax Virginia 22031 4 7 SUPER LOW PRICES *Radios &* Accessories FUTABAO AIRTRONICS 0 KRAFT *Kits Hardware &* Field Accessories Brands 0 Starters 0 Field chargers @ Tachometers *Engines* 0050 SUPER TIGER SAITO 0 ENYA 0 Y5 QUADRA 0 ZENOAH MONTHLY SPECIAL FUTABA PCM $47800 MAIL ORDERS SAME DAY SERVICE S MODEL EXPERTS TO HELP YOU 0 OPEN 7 DAYS CALL US TOLL FREE 800-358-0766 OR WRITE US AT THE LEADING EDGE 1-A Lakewood Plaza Carpentersville IL 60110 October 1985 157 Heres What Youve Been Waiting For. DIRECTDIRECT ONLY BRITAINS MOST POPULAR HELICOPTER ONLY Hughes 300 28 -45 Motor pan 224g5 METAL GEARS MAIN ROTOR & TAIL FAN COOLING ALL MODELS WITH COLLECTIVE PITCH LOW COST PARTS EASY TO BUILD 109 COMPLETE WITH RETRACTS IN KIT Dell 47-G 40 45 Motor pan 259s Send 200 full formation Pack Color Photos o Available 634 ROY HUIE RD 18-A RIVERDALE GA 30274 MON- FRI 404 991-1995 $ AM- 8 PM scratch surface board within scribed circle appropriate places until have created desired instrument Because small size instruments will trying create suggest view work through high-powered magnifying glass use jewelers loupe doing scribing process am sure first attempts will like rather poor little practice will able make numbers letters etc turning out some fairly decent-looking instruments finally have instrument completed satisfaction carefully cut out X-Acto knife razor blade scissors mount its instrument ring Cockpit placards can also made using same procedure Note flap warning placard accompa nying photo Biplane self-destruction Over past several years have either heard about witnessed destruction various biplanesall caused planes upper wings shearing off during maneuvers such wingovers loops during maneuvers extreme FLYING NEAR AIRPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY lifting loads placed models wing connecting struts spectacular wing-shearings have witnessed 1980 Nats flying buddy Pete Bianchini put Liberty Sport loop plane got top loop just fine split second later upper wing gone plane turned what loop perfect Figure-9 straight con crete Needless say little left stuff remains nearby trash can Pete has since built another Liberty Sport some minor modifications upper-wing installation accompanying sketch shows installa tion wing strut simplicity type would seen Staggerwing Beechcraft same basic installa tion can applied biplane wing struts used Pete second Liberty Sport Please note upper end strut installation shown sketch again sketch simplicity what done top should also done lower end strut first step make set ribs two ply balsa shown sketch using wing rib area wing struts stalled pattern Based size/ weight model ply ribs could made l/32-in 1/8-in ply balsa rib should cut material same thickness wing strut will used notched proper locations acceptance struts ribs cut out center rib properly notched glue together sandwichstyle shown sketch Next place hardwood wing struts notches drill holes through assembly hole passes through center portion strut inserted rib assembly see sketch hole should sized according width strut An example might several struts 3/8-in 1/2-in wide might want use 1/16-in 3/32-in dowel pegs large single struts used such Beechcraft pegs 1/8-in dowel larger might used struts have fitted drilled newly-made ribs can stalled proper locations wing final assembly model done have glue pin struts place both upper lower wing assemblies end result should provide wing assembly will withstand forces maneuvers Special note Information pictures column have coming very slowly late share some ideas pictures latest C S II S LIE S I BENTOM BROWN JR LAMPHELL COMET COVERITE COX DUBRO EASY BUILT MODELS ENYA FAI FLYLINE FOX- GOLDBERG GOLDEN AGE REPRO IGENE DUBOIS GUILLOW- K&B- K&S L R MRC OS MAX PACTRA PECK-POLYMER PERFECT R N MODELS SEAGLEN SIG STERLING SULLIVAN SUPER TIGRE TAFFINDER TELCO TOP ELITE TREXLER 1WILLIAMS & OTHERS IESTES MODEL ROCKETS Seod SIOO Cash Check Stamps foe ocr 44 page tabload 51CC DISCOUNT Catalog 900 illustrations over 700 Kits choose IMAILORDER PHONEORDER IN STORE PENN VALLEY HONEY CENTER 837 W Main St LansdalePa 19446 lbu Invited join NATIONAL SOARING SOCIETY OFFICIAL AMA SOARING SPECIAL INTERESTOROUP a YEARLY NSS SOAR-IN TOURNAMENTS a NATION-WIDE EXCELLENCE AWARDS PROGRAM EXCELLENT SI-MONThLY NEWSLETTER a NSS FULLY SUPPORTS ThE F3B SOARING TEAM & LSF SOARING PROGRAM a NSS IS INVOLVED IN ThE ORGANIZATION AND OVERSEEING OF ThE SOARING PORTION OF AMA NATS INCLUDING AWARDS BANQUET YEARLY DUES ARE $1200 SPECIAL FAMILY RATES NSS OFFICERS ARE FROM ALL 11 DISTRICTS Information Contact NSS Sacretaryrhaaurer R DICK CROWLEY P0 Box 440342 Aurora CO 80044 158 Model Aviation Custom Built 3ls Mode 2036 N Thorns Ave Fresno CA 93704 8 am 6pmOrder Phone 209 233-1050ask Bill If you LOVE fly HATE build Contact - have Solution problem Kits Custom Built Order Sanded Ready Cover AndrewsGotdbergGreat PlaneaeEtcs - IF1yWhatIDuitd VISA MORLEY S/F Agusta 109 40 - 45 Motor pan 34995 projects rest Scale model ing world Send ideas photos Bill Boss 77-06 269th St New Hyde Park NY 11040 CL Racing/Ballard Continued page 70 sealed containers supplied Racing events Propeller reevaluation subsequent changes mandatory 10% fuel rule great deal hand-molded meticulously-prepared propellers became obsolete especially evident both Scale Racing Rat Racing think safe say Scale Racing peo pie running between 60% 70% nitro drop 10% heavily-pitched propellers range 7 x 5 7 x 5A pitch found totally unsatisfactory loss range 3000 rpms going 70% nitro 10% nitro using 5 5% pitch must remember majority fiberglass carbon fiber propellers originally virtually completed prod ucts required pitch extreme thinness propeller blade allowing very little area left repitch blade found Scale Racers needed completely new propeller design much lower pitch fiberglass car bon fiber copy Taipan 7 x 5 found have enough blade area allow changing pitch approximately 7 x 4-to-4A pitch considerable amount time saved utilizing testing both FAL Combat competitors well RC Quarter Midget racers Both groups have spent con siderable amount time testing propel lers achieve maximum rpm RC Quarter Midget has fuel restrictions some time few competitors have purchased some very lowpitched Free Flight props 7 x 3 A-to-4 pitch range careful workup engine testing resulted some dramatically improved rpm airspeeds reduction airspeed rpm 40 Rat engine quite dramatic Scale Racing certainly re quired complete propeller evaluation past 55% 65% nitro used 7% 8-inch-pitch propellers allow engine unload air found immediately 10% nitro engine would unload satisfactorily airspeed down considerably Fortunately fiberglass Rat Race pro pellers available racers have enough blade area allow de-pitching 6% 7% pitch immediately found OS 40 Pylon engine capable pulling 7%-pitch propeller whereas K&B 40 ST 40 required slightly less pitchabout / % blade diameter approximately eight inches found U •uummuEEEEEEEU-E--U-U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U K U U U U U. .EEEEE SIG CHAMPION FUEL FREE SHIPPING ON ORDERS OVER $1000 % NITRO 0% PAl 5% 10% 15% 25% 35% 10% 15% PINT $295 $350 $395 $415 $475 $550 $395 $415 QUARTGALLON $425$ 995 $495 $1195 $525 $1395 $595 $1595 $695 $1995 $795 $2395 NEW SIG 4-STROKE FUE $525$1350 $595$1550 L FREIGHT COLLECT 55 GAL DRUM $17500 $24500 $31000 $37400 $50000 $64000 $29500 $35900 U I U U U I THE CHOICE OF CHAMPION FLYERS Dont misled price alone model fuels same Some cut-rate mail order fuel Out selling 10% fuel really contains about 8% nitro skimp costly nitro form g fuel weight basis rather traditional percent-of-volume method Also some ma 0 der fuels blended little 15% total oil Thats OKif geta perfect needle setting everytime 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 alcoho 5 995% pure very best grade available nitro use 100% pure get honest port based % volume maximum lubrication get perfect 50150 blend Bakers AA Castor Oil Klotz Techniplate Racing Oil protect expensive engines finest quality fuel m can made price Dont take word try some judge yourself U See dealer first available order direct Call K 800-247-5008 toll free orders Catalog 47 $3 00 SIG MANUFACTURING CO Montezuma IA 50i7l Prices subject te change wrthOet netice EEEuEEuEEuEUEEEEE satisfactory addition smallblade-area propellers seemed develop highest airspeed Field safety Since speed both Slow Rat Rat racers 120-140 tense field safety paramount Midwest area racing competitors have purchased own battery-operated bullhorn use starting judge addition competitors have found ingenious ways protect arms heavy starting batteries also fingers well-filed fiberglass carbon fiber propellers Lately have seen some rather ingenious holders batteries made archery arm supports U U U I I I I I I I U U also finger protectors made archery finger protectors Several competitors have using wellpadded glove thumb third fourth fingers cut off allowing free move ment hand first second fingers left glove allows easier movement should plug change prop relocation wrench necessary Obviously clearly-visible circle mark ings mandatory allow pilot reference point pit man area can safely catch model dur ing pit stops refuel take off being endangered other aircraft land ing taking off material circle/ October 1985 159 /N 201 SE 12th Street Pompano Beach FL 33080 306-7857978 ENGINEERING THE LANDING GEAR PEOPLE lint @1 kil Imodlog gears dont Ill foor kiggle properly o & ii Engihoonog can solve prublenis * Coals hoill needs & specs yuarsoleod hI * Strong & dorohle wilhsland lho loighuel aiding * 0 & 0 Engineeriog gear will work & koep tour kiggie Ily log * In stock roplacoeoel gear br 051 popolar models Byron Pith Christen Eagle CAP 21 Balsa USA J-3 CUB Air Tech Pawns aed Eagle gsa Big Slick Ckawp Citakna R & B models Snapper Stiogor Snapper Ton Once have tried best wont settle anything Kin-Craft quality products N I1IIII4AETWG 4 411flabby fydarb Look complete line Isv ho hbv shop send catalogue
Edition: Model Aviation - 1985/10
Page Numbers: 69, 157, 158, 159
/ iiii ij Scale Bill Boss INSTRUMENTS AND PLACARDS Have ever needed special instrument placard put final touch Scale cockpit course have instruments placards manu factured us readily available local hobby shops can also obtain odd instruments cutting out strument panels seen advertisements magazines such Flying Air Prog ress However have gone through above sources still cant find instrument want dont lose heart can always make/draw up self accompanying photo rear cockpit instrument panel 20-yearold PT-19 took second place 1965 Nats Willow Grove shows temperature gauge right Turn Bank indicator re quired panel could found among manufactured items instrument made rather easily after being told friend days artist modeler procedure rather simple First obtain almost art supply store piece material called scratch board piece 8x10 inches will sufficient needs scratch board actually board rather cardboard-like substance Control Line biplanes have poor track record comes top wings staying place drawing R shows easy strong method attaching wing/cabane struts wing structure two successfui CL bipes shown below entered Sport Scale Garden State Circle Burners annual Fail Scale Rally LR Smith Miniplane Junior contes tant Paul Marino Flushing NY built Sig kit has 05 40 power Beech Staggerwin built Open member Ralph Luik Saddlebrook NJ has Fox 59 power white color has chalk-type sur face side Also obtain small bot tle black India ink will also need fine sewing needle pin vise similar instrument mount needle now ready make own instruments first step cut off small piece chalk board about 2x4 inches naint chalky surface India ink Give two three coats neces sary get good black Allow dry thoroughly Now determine size instrument required using needle scribe circle lightly blackened chalk board surface circle can made using appropriate-size instrument ring such provided Tatone instruments guide Continued page 157 October 1985 69 Scale instruments cock p sometimes cant find what need hobby shop magazine photo What Make yourself Bill tells made temperature gauge Oust right turn & bank indicator rear cockpit 1965 Natspiacing PT19 also made Flap Warning placard RIB lowering tank/engine relationship un til trick users uniflow tank systems tank has shimmed far possible run still uneven open up tank move uniflow vent direction wish move tank vent tank far engine concerned moving has same affect moving entire tank long last lets discuss final items flight trim Tracking Uniformity Turn final items Trim Table turn characteristics must trimmed less encounter order severity classic methods attacking un equal rates turn inside versus outside either bias elevators relation flaps direction proper turn less desirable mind make handle arm line spacing poorer direction longer consider both methods camouflage prefer used last resort fact opinion biased handle arms will create almost problems solve would always opt bias elevators becomes necessary Well what heck suggest ask First suggest making sure wings level during maneuvers ship banks out upright invert ed vice versa tension will better banked out Response will positive airplane will prob ably turn tighter Second suggest seal elevator hingeline experience airplane have sealed hingeline has become uniform rate turn first time tried increase turn rate Intimidation flying two years about 3/8 inch Down elevator cranked After sealing trimmed out Misset handle neutral positions will often result ship appears pilot turn well direction usually outsides because han dle held naturally neutral some down bias Often trimming gradual ly back vertical neutral will result the 15th consecutive year covering continues go easier & last longer rest 9-. Congratulations Super Coverite magical reincarnation outside turn else has failed make turns equal now time bias elevator direction poorer turn airborne controls arent adjustable youll have bias handle Make line spacing greater direction poorer turn Usually trimming stability response rate turn uniformity will automatically result acceptable tracking maneuvers still have problems consider following try different props Props different manufacture same will oftentimes respond differently Props washed out less pitch tips will generally track better although sometimes little loss line tension above 450 flap per degree elevator will help somewhat tracking have partial-span flaps problem severe can almost guarantee increasing flap span will improve tracking Well gang about does now know everything Fancher knows about designing trimming Stunt ship Whether thats good bad anyones guess including yours Most gospel Some controversial some just plain simply way Fancher sees hope find helpful way couple items Trim Table May 1985 issue mention Wind effects asterisk near future Im going similar project actually flying pattern time Ill covering winds effect length hope look forward Ted Fancher 158 Flying Cloud Isle Foster City CA 94404 CL Scale/Boss Continved page 69 will note scribe circle ink scratched off board leaving white circle point simply continue Bucker Jungmeisier For 049 Engines Ingspan Biplane Suitable 2-4 Channel B/C systems classic its kind An agile biplane tor aerobatics As model really pertorms excellent planlorm durable enjoyable sPip tly RIG contest enests Kit sire @ Weve sot whale line 51 old lavoriteS Please send hOe tsr nor Fl0linn caralag $2995 Phone 17031 273-9593 Onalers OlsirihotOrn nailed FLYLINE MODELS INC PO Box 2136 Fairfax Virginia 22031 4 7 SUPER LOW PRICES *Radios &* Accessories FUTABAO AIRTRONICS 0 KRAFT *Kits Hardware &* Field Accessories Brands 0 Starters 0 Field chargers @ Tachometers *Engines* 0050 SUPER TIGER SAITO 0 ENYA 0 Y5 QUADRA 0 ZENOAH MONTHLY SPECIAL FUTABA PCM $47800 MAIL ORDERS SAME DAY SERVICE S MODEL EXPERTS TO HELP YOU 0 OPEN 7 DAYS CALL US TOLL FREE 800-358-0766 OR WRITE US AT THE LEADING EDGE 1-A Lakewood Plaza Carpentersville IL 60110 October 1985 157 Heres What Youve Been Waiting For. DIRECTDIRECT ONLY BRITAINS MOST POPULAR HELICOPTER ONLY Hughes 300 28 -45 Motor pan 224g5 METAL GEARS MAIN ROTOR & TAIL FAN COOLING ALL MODELS WITH COLLECTIVE PITCH LOW COST PARTS EASY TO BUILD 109 COMPLETE WITH RETRACTS IN KIT Dell 47-G 40 45 Motor pan 259s Send 200 full formation Pack Color Photos o Available 634 ROY HUIE RD 18-A RIVERDALE GA 30274 MON- FRI 404 991-1995 $ AM- 8 PM scratch surface board within scribed circle appropriate places until have created desired instrument Because small size instruments will trying create suggest view work through high-powered magnifying glass use jewelers loupe doing scribing process am sure first attempts will like rather poor little practice will able make numbers letters etc turning out some fairly decent-looking instruments finally have instrument completed satisfaction carefully cut out X-Acto knife razor blade scissors mount its instrument ring Cockpit placards can also made using same procedure Note flap warning placard accompa nying photo Biplane self-destruction Over past several years have either heard about witnessed destruction various biplanesall caused planes upper wings shearing off during maneuvers such wingovers loops during maneuvers extreme FLYING NEAR AIRPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY lifting loads placed models wing connecting struts spectacular wing-shearings have witnessed 1980 Nats flying buddy Pete Bianchini put Liberty Sport loop plane got top loop just fine split second later upper wing gone plane turned what loop perfect Figure-9 straight con crete Needless say little left stuff remains nearby trash can Pete has since built another Liberty Sport some minor modifications upper-wing installation accompanying sketch shows installa tion wing strut simplicity type would seen Staggerwing Beechcraft same basic installa tion can applied biplane wing struts used Pete second Liberty Sport Please note upper end strut installation shown sketch again sketch simplicity what done top should also done lower end strut first step make set ribs two ply balsa shown sketch using wing rib area wing struts stalled pattern Based size/ weight model ply ribs could made l/32-in 1/8-in ply balsa rib should cut material same thickness wing strut will used notched proper locations acceptance struts ribs cut out center rib properly notched glue together sandwichstyle shown sketch Next place hardwood wing struts notches drill holes through assembly hole passes through center portion strut inserted rib assembly see sketch hole should sized according width strut An example might several struts 3/8-in 1/2-in wide might want use 1/16-in 3/32-in dowel pegs large single struts used such Beechcraft pegs 1/8-in dowel larger might used struts have fitted drilled newly-made ribs can stalled proper locations wing final assembly model done have glue pin struts place both upper lower wing assemblies end result should provide wing assembly will withstand forces maneuvers Special note Information pictures column have coming very slowly late share some ideas pictures latest C S II S LIE S I BENTOM BROWN JR LAMPHELL COMET COVERITE COX DUBRO EASY BUILT MODELS ENYA FAI FLYLINE FOX- GOLDBERG GOLDEN AGE REPRO IGENE DUBOIS GUILLOW- K&B- K&S L R MRC OS MAX PACTRA PECK-POLYMER PERFECT R N MODELS SEAGLEN SIG STERLING SULLIVAN SUPER TIGRE TAFFINDER TELCO TOP ELITE TREXLER 1WILLIAMS & OTHERS IESTES MODEL ROCKETS Seod SIOO Cash Check Stamps foe ocr 44 page tabload 51CC DISCOUNT Catalog 900 illustrations over 700 Kits choose IMAILORDER PHONEORDER IN STORE PENN VALLEY HONEY CENTER 837 W Main St LansdalePa 19446 lbu Invited join NATIONAL SOARING SOCIETY OFFICIAL AMA SOARING SPECIAL INTERESTOROUP a YEARLY NSS SOAR-IN TOURNAMENTS a NATION-WIDE EXCELLENCE AWARDS PROGRAM EXCELLENT SI-MONThLY NEWSLETTER a NSS FULLY SUPPORTS ThE F3B SOARING TEAM & LSF SOARING PROGRAM a NSS IS INVOLVED IN ThE ORGANIZATION AND OVERSEEING OF ThE SOARING PORTION OF AMA NATS INCLUDING AWARDS BANQUET YEARLY DUES ARE $1200 SPECIAL FAMILY RATES NSS OFFICERS ARE FROM ALL 11 DISTRICTS Information Contact NSS Sacretaryrhaaurer R DICK CROWLEY P0 Box 440342 Aurora CO 80044 158 Model Aviation Custom Built 3ls Mode 2036 N Thorns Ave Fresno CA 93704 8 am 6pmOrder Phone 209 233-1050ask Bill If you LOVE fly HATE build Contact - have Solution problem Kits Custom Built Order Sanded Ready Cover AndrewsGotdbergGreat PlaneaeEtcs - IF1yWhatIDuitd VISA MORLEY S/F Agusta 109 40 - 45 Motor pan 34995 projects rest Scale model ing world Send ideas photos Bill Boss 77-06 269th St New Hyde Park NY 11040 CL Racing/Ballard Continued page 70 sealed containers supplied Racing events Propeller reevaluation subsequent changes mandatory 10% fuel rule great deal hand-molded meticulously-prepared propellers became obsolete especially evident both Scale Racing Rat Racing think safe say Scale Racing peo pie running between 60% 70% nitro drop 10% heavily-pitched propellers range 7 x 5 7 x 5A pitch found totally unsatisfactory loss range 3000 rpms going 70% nitro 10% nitro using 5 5% pitch must remember majority fiberglass carbon fiber propellers originally virtually completed prod ucts required pitch extreme thinness propeller blade allowing very little area left repitch blade found Scale Racers needed completely new propeller design much lower pitch fiberglass car bon fiber copy Taipan 7 x 5 found have enough blade area allow changing pitch approximately 7 x 4-to-4A pitch considerable amount time saved utilizing testing both FAL Combat competitors well RC Quarter Midget racers Both groups have spent con siderable amount time testing propel lers achieve maximum rpm RC Quarter Midget has fuel restrictions some time few competitors have purchased some very lowpitched Free Flight props 7 x 3 A-to-4 pitch range careful workup engine testing resulted some dramatically improved rpm airspeeds reduction airspeed rpm 40 Rat engine quite dramatic Scale Racing certainly re quired complete propeller evaluation past 55% 65% nitro used 7% 8-inch-pitch propellers allow engine unload air found immediately 10% nitro engine would unload satisfactorily airspeed down considerably Fortunately fiberglass Rat Race pro pellers available racers have enough blade area allow de-pitching 6% 7% pitch immediately found OS 40 Pylon engine capable pulling 7%-pitch propeller whereas K&B 40 ST 40 required slightly less pitchabout / % blade diameter approximately eight inches found U •uummuEEEEEEEU-E--U-U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U K U U U U U. .EEEEE SIG CHAMPION FUEL FREE SHIPPING ON ORDERS OVER $1000 % NITRO 0% PAl 5% 10% 15% 25% 35% 10% 15% PINT $295 $350 $395 $415 $475 $550 $395 $415 QUARTGALLON $425$ 995 $495 $1195 $525 $1395 $595 $1595 $695 $1995 $795 $2395 NEW SIG 4-STROKE FUE $525$1350 $595$1550 L FREIGHT COLLECT 55 GAL DRUM $17500 $24500 $31000 $37400 $50000 $64000 $29500 $35900 U I U U U I THE CHOICE OF CHAMPION FLYERS Dont misled price alone model fuels same Some cut-rate mail order fuel Out selling 10% fuel really contains about 8% nitro skimp costly nitro form g fuel weight basis rather traditional percent-of-volume method Also some ma 0 der fuels blended little 15% total oil Thats OKif geta perfect needle setting everytime 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 alcoho 5 995% pure very best grade available nitro use 100% pure get honest port based % volume maximum lubrication get perfect 50150 blend Bakers AA Castor Oil Klotz Techniplate Racing Oil protect expensive engines finest quality fuel m can made price Dont take word try some judge yourself U See dealer first available order direct Call K 800-247-5008 toll free orders Catalog 47 $3 00 SIG MANUFACTURING CO Montezuma IA 50i7l Prices subject te change wrthOet netice EEEuEEuEEuEUEEEEE satisfactory addition smallblade-area propellers seemed develop highest airspeed Field safety Since speed both Slow Rat Rat racers 120-140 tense field safety paramount Midwest area racing competitors have purchased own battery-operated bullhorn use starting judge addition competitors have found ingenious ways protect arms heavy starting batteries also fingers well-filed fiberglass carbon fiber propellers Lately have seen some rather ingenious holders batteries made archery arm supports U U U I I I I I I I U U also finger protectors made archery finger protectors Several competitors have using wellpadded glove thumb third fourth fingers cut off allowing free move ment hand first second fingers left glove allows easier movement should plug change prop relocation wrench necessary Obviously clearly-visible circle mark ings mandatory allow pilot reference point pit man area can safely catch model dur ing pit stops refuel take off being endangered other aircraft land ing taking off material circle/ October 1985 159 /N 201 SE 12th Street Pompano Beach FL 33080 306-7857978 ENGINEERING THE LANDING GEAR PEOPLE lint @1 kil Imodlog gears dont Ill foor kiggle properly o & ii Engihoonog can solve prublenis * Coals hoill needs & specs yuarsoleod hI * Strong & dorohle wilhsland lho loighuel aiding * 0 & 0 Engineeriog gear will work & koep tour kiggie Ily log * In stock roplacoeoel gear br 051 popolar models Byron Pith Christen Eagle CAP 21 Balsa USA J-3 CUB Air Tech Pawns aed Eagle gsa Big Slick Ckawp Citakna R & B models Snapper Stiogor Snapper Ton Once have tried best wont settle anything Kin-Craft quality products N I1IIII4AETWG 4 411flabby fydarb Look complete line Isv ho hbv shop send catalogue