SCALE Bob & Dolly Wischer SLIDING Canopy Method canopy slides rails eye-catching features separate really excellent scale model ordinary isnt especially difficult produce can always copy methods used some full-size planes avoid problems involved invention scheme simplest schemes have seen employed telescoping square tubing outer tube slotted its full length represents canopy travel distance second shorter piece square tube slides within slotted tube has link fastened canopy frame Three slotted tubes used resulting three-point connection between fuselage canopy viewed above two points canopy front edge meets fuselage sides third located rearmost part canopy fuselage centerline Also top view three slotted tubes must reasonably parallel permit easy sliding operation binding essential fuselage sides tapered area slotted tubes fastened Should fuselage sides slightly tapered must possible fasten tubes parallel though may misaligned sides square brass telescoping tubes K & S Engineering can purchased hobby shops look tubing rack hardware store local stores carry K & S line sizes have used 3/16 outer tube 5/32 inner fit average 1/5 scale model outer tube clamped vise slot cut hack saw slot widened Swiss needle file inner tube needs long enough Continued page 99 CANOPY K - EPOXY CONTACT CEMENT TUBES TO TOP OFSLOTTED TAPPED FUSELAGE EDGE ALTERNATE ALUMINUM BLOCK SLOTTED ro ENGAGE REAR TUBE ENLARGED MUSIC WIRE - TELESCOPING SQUARE BRASS TUBE SOLDEREDENLARGED INSIDE Simple durable sliding canopy mechanism Read column further tips ___ _____-FOLD LINES o005 BRASS SHEET oWRAPPED AROUND WOOD BLOCK DEVELOPED1/8 SOLDER COUNTERSUNK WOOD BLOCK 1/8 TUBEFORM SOLDER SILICONE CUT TUBEOFF I/8OD TUBE SOLDERED May 1980 27 Typical scratch-built fuel tank must faced cramped tank compartment new modelwhere commercial tank wont fit Wischers have good tips column Dick Smiths Gee Bee Ri home air displays ItS natreo ror ground refusing taxi well Model built Bob Holman plans weighs gii2 lbs has 66-in span powered H P61 l clearly shows TLC its builder Super Poxy finish LOI OD IflacKers lurner Special seen Nats mini Roscoe Turner peers cockpit Bob replacing scale prop wood N Tanks ver half winning contestants 1979 National Model Airplane Cham pionships held Lincoln Nebraska specified what tank installed entries said using Sullivan Brand Over half No other brand could come close Champion modelers agree FULL TANK SYSTEM Sullivan has really put together built-in bubble space air tubing can fill way top enjoy extralong flights Just like other champions #1 Line o winners Winning control line flyers AMA championships chose Sullivan lines rate almost 3 1 over next popular brand Thats lead thats almost long four standard lengths . 35 52 60 70 . Sullivans Pylon Brand Control Lines dealers stock dont forget diameters run 008 up 021 size champions #1 Starters Big Brother years Sullivan has superstar starters starter turned whole world higher torque & RPMs heavy duty long life motor instant-on strip switch safety hand guard 2-year guarantee Now along comes newest winner its big brother 24-Volt powerhouse enough torque start almost anything Hard-to-start airplane boat car en gines big -scale monsters Almost anything Check new winner out favo rite dealers nt have yet tell him hurry cause hes keeping champion waiting . WARNING Modelers Fly Near Overhead Power Lines P R 0 D U C T S N C 535 DAVISVILLE ROAO OW GROVE PA 19090 215 650-3900 RC Scale/Wischers continued page 27 prevent window jamming sliding about slightly connectthe inner tube canopywe use U-shaped length 1/32 music wire soldered interior inner tube notch filed end keeps wire centered soldering wire extends through slot epoxied canopy frame Hobbypoxy Formula 3 thixotropic epoxy glue will stay put migrate down slot Epoxy runs space between inner outer tubes renders non-sliding canopy Fastening brass tubes balsa fuselage sides best accomplished contact cement better cements also hobby shop item borrowed model railroad group tube cement called Waithers Goo have brass-tobalsa joints canopies now eight years old still sound tiny bit light grease such Vaseline inner tube helps give smooth operation Another helpful trick round off inner tube ends fine file avoid galling often results brass-to-brass bearing surface bit extra effort canopy mounted described can made demountable can done using brass aluminum block third track rear canopy place inner square tube portion block runs inside slotted tube would have same dimensions inner tube 5/32-in thick piece aluminum has grooves filed its sides threaded hole exposed portion An aluminum bracket epoxied canopy held single screw canopy can dis engaged two front tubes leaving short space aft ends inner tubes will slide clear reduce weight keep length outer tubes sum canopy sliding distance plus /2 inch Fuel Tanks Sport training planes have suffi cient space accomodate commercial fuel tanks Too often scale enthusiast finds space fuselage shape no tank will fit cases like tend fall back use familiar materialssuch brass years ago first tanks made specifically RC modeling brass clank tank May 1980 99 werent snow fence lawn chairs background deHavilland Tiger Moth built Tom Dieterich Frank Evans would surely mistaken real thing Model 1/6 scale weighs 10 pounds Clear Hobbypoxy over Testors enamel finish Dave Landvater built 40%-scale Pitts 8 years ago Quadra-powered plane has hand-carved prop 21 dia 12 pitch Model capable airshow-style aerobatics Photo Kitchener-waterloo rally Harold deBolt scale models prefer lighter material have using 005 shim brass custom tanks fit odd spaces thickness brass extremely easy solder sharp bends can made effort weight kept minimum An 8-fluid-ounce tank will weigh about 1 ounces too different polyethylene tank made ultra high molecular weight raw material Almost shape can made forming around wood block preferred shape has V bottom tank can completely emptied absolute necessity after flying session have found brass erodes fuel unplated brass pickup field fuel container becomes porous after being immersed season Holes fuel vent tubes front surface can pierced easily sharp steel scriber Done care holes will slight press fit tube pierced hole actually extruded means affording wider solder surface Before soldering rear tank posi tion clunk tube weighted pickup installed Silicone tube material seems have long life sealed inside com pletely soldered tank weight made drilling -in hole hardwood block countersinking about -in diameter short length Vs brass tube inserted bottom countersink solder melted remaining depression wood becomes charred does flame some smoke may wise outdoors keep peace family tube cut off flush tip solder cone Bend silicone tube toward tank front soldering tank rear place avoid melting weight Brass sheets another hobby shop items found railroad section Sig catalog Usual sheet size 4 X 10 inches tank interior should flushed alcohol dope thinner remove solder flux residue designing constructing tank handy mea sure size requirements 18 co uid ounce Check leaks submerging water pressurizing lung power through fuel tube vent plugged calculate tank weight square inch 005 brass weighs 028 ounce Coming Events active scale organizations Scale Squadron Southern Califomia year will conducting first Master Scale Championship entrants come winners four regional contests Nats addition Squadron contest four contests Mint Julep Kentucky Tangerine Florida Sparks Philadelphia PA Milwaukee Flying Electrons Wisconsin Masters contest will held October 3-5 Mile Square Park Fountain Valley CA Winners through fifth place Sport Scale through third place Precision will qualify year site Masters will changed five participating clubs will have opportunity host meet will adhere strictly AMA rules second annual RC Hobbies Scale Jam boree will held Pebble Creek Field near Waukesha WI July 6th increasingly popular scale rallies draw large numbers modelers further information write Don Hoover RC Hobbies 18305 W Lisbon Rd Brookfield WI 53005 Scale Realism Again 1980-81 rules book reaches hands will contain newly approved Scale Flight Judges Guide will essentially same printed Novem ber 1978 issue ModelAviation pages 84 85 Serious competitors have very likely read guide formed opinions regarding adherence its contents aguide part rulesjudges will using material presented help make decisions during competition especially Nats other large meets should noted under heading Obligatory Flight Maneuvers sub-heading Realism Flight states specifically approximately half realism score should awarded scale-like speed applies everything done during complete flight judges guide received yes vote last years balloting scale contest board See January 1980 MA page 86 voting record Actually respect matter earnest effort contestant simulate scale speed just beginning catch up practices have become standard world-wide scale competition flying judging Acknow ledging scale speed unattainable mythological artifice its inclusion stated judges guide will draw attention during judging process serious modelers will en deavor comply Since have never successful achieving anything like scale speed models collection emphasis facet flight realism has always worry us going back early 1 970s first told would factor world championship contests have told assumption scale speed im possibility dead wrong RC Pylon/Hager continued page 28 immediately minimize opportunity sandbagging Some trophy-hunter experts will become disgrunted handicap system will soon move up QM Formula belong remain Handicap Quickie flying much improved due racing someone 1 2 lap head start addition handicap system can eliminate cost extra set Standard Class awards Instead provide single award Most Improved Best Performance flier system has proven races results well worth terms increased race attendance growing influx new blood sport Try next Quickie race Im sure youll like works! As can see area uses own system seems work well Get racers together decide rules best fit area good luck 1980 Bill Hager 4622 Bridgeport Dr Garland TX 75043 100 Model Aviation CUSTOM TUNED ENGINES Make Glow ~ Diesel 1 ETITION ACCESSORIES [ hA /4 Scale PowerSpecial GY 014 X 60 solid lines $295 ppd Usable Power Greater Economy tom needle valves racing wheels ISee AMA Bonus Benefit Couponquick fills fuel shut-o ifs B others IFor huge introductory discount andI detailed brochure send 25 cents dont forget stamped envelopeJKustom Kraftsmanship Box 2699 Laguna Hills l Davis Diesel Development Inc lif 92653 Ph f714 830-5162
Edition: Model Aviation - 1980/05
Page Numbers: 27, 99, 100
SCALE Bob & Dolly Wischer SLIDING Canopy Method canopy slides rails eye-catching features separate really excellent scale model ordinary isnt especially difficult produce can always copy methods used some full-size planes avoid problems involved invention scheme simplest schemes have seen employed telescoping square tubing outer tube slotted its full length represents canopy travel distance second shorter piece square tube slides within slotted tube has link fastened canopy frame Three slotted tubes used resulting three-point connection between fuselage canopy viewed above two points canopy front edge meets fuselage sides third located rearmost part canopy fuselage centerline Also top view three slotted tubes must reasonably parallel permit easy sliding operation binding essential fuselage sides tapered area slotted tubes fastened Should fuselage sides slightly tapered must possible fasten tubes parallel though may misaligned sides square brass telescoping tubes K & S Engineering can purchased hobby shops look tubing rack hardware store local stores carry K & S line sizes have used 3/16 outer tube 5/32 inner fit average 1/5 scale model outer tube clamped vise slot cut hack saw slot widened Swiss needle file inner tube needs long enough Continued page 99 CANOPY K - EPOXY CONTACT CEMENT TUBES TO TOP OFSLOTTED TAPPED FUSELAGE EDGE ALTERNATE ALUMINUM BLOCK SLOTTED ro ENGAGE REAR TUBE ENLARGED MUSIC WIRE - TELESCOPING SQUARE BRASS TUBE SOLDEREDENLARGED INSIDE Simple durable sliding canopy mechanism Read column further tips ___ _____-FOLD LINES o005 BRASS SHEET oWRAPPED AROUND WOOD BLOCK DEVELOPED1/8 SOLDER COUNTERSUNK WOOD BLOCK 1/8 TUBEFORM SOLDER SILICONE CUT TUBEOFF I/8OD TUBE SOLDERED May 1980 27 Typical scratch-built fuel tank must faced cramped tank compartment new modelwhere commercial tank wont fit Wischers have good tips column Dick Smiths Gee Bee Ri home air displays ItS natreo ror ground refusing taxi well Model built Bob Holman plans weighs gii2 lbs has 66-in span powered H P61 l clearly shows TLC its builder Super Poxy finish LOI OD IflacKers lurner Special seen Nats mini Roscoe Turner peers cockpit Bob replacing scale prop wood N Tanks ver half winning contestants 1979 National Model Airplane Cham pionships held Lincoln Nebraska specified what tank installed entries said using Sullivan Brand Over half No other brand could come close Champion modelers agree FULL TANK SYSTEM Sullivan has really put together built-in bubble space air tubing can fill way top enjoy extralong flights Just like other champions #1 Line o winners Winning control line flyers AMA championships chose Sullivan lines rate almost 3 1 over next popular brand Thats lead thats almost long four standard lengths . 35 52 60 70 . Sullivans Pylon Brand Control Lines dealers stock dont forget diameters run 008 up 021 size champions #1 Starters Big Brother years Sullivan has superstar starters starter turned whole world higher torque & RPMs heavy duty long life motor instant-on strip switch safety hand guard 2-year guarantee Now along comes newest winner its big brother 24-Volt powerhouse enough torque start almost anything Hard-to-start airplane boat car en gines big -scale monsters Almost anything Check new winner out favo rite dealers nt have yet tell him hurry cause hes keeping champion waiting . WARNING Modelers Fly Near Overhead Power Lines P R 0 D U C T S N C 535 DAVISVILLE ROAO OW GROVE PA 19090 215 650-3900 RC Scale/Wischers continued page 27 prevent window jamming sliding about slightly connectthe inner tube canopywe use U-shaped length 1/32 music wire soldered interior inner tube notch filed end keeps wire centered soldering wire extends through slot epoxied canopy frame Hobbypoxy Formula 3 thixotropic epoxy glue will stay put migrate down slot Epoxy runs space between inner outer tubes renders non-sliding canopy Fastening brass tubes balsa fuselage sides best accomplished contact cement better cements also hobby shop item borrowed model railroad group tube cement called Waithers Goo have brass-tobalsa joints canopies now eight years old still sound tiny bit light grease such Vaseline inner tube helps give smooth operation Another helpful trick round off inner tube ends fine file avoid galling often results brass-to-brass bearing surface bit extra effort canopy mounted described can made demountable can done using brass aluminum block third track rear canopy place inner square tube portion block runs inside slotted tube would have same dimensions inner tube 5/32-in thick piece aluminum has grooves filed its sides threaded hole exposed portion An aluminum bracket epoxied canopy held single screw canopy can dis engaged two front tubes leaving short space aft ends inner tubes will slide clear reduce weight keep length outer tubes sum canopy sliding distance plus /2 inch Fuel Tanks Sport training planes have suffi cient space accomodate commercial fuel tanks Too often scale enthusiast finds space fuselage shape no tank will fit cases like tend fall back use familiar materialssuch brass years ago first tanks made specifically RC modeling brass clank tank May 1980 99 werent snow fence lawn chairs background deHavilland Tiger Moth built Tom Dieterich Frank Evans would surely mistaken real thing Model 1/6 scale weighs 10 pounds Clear Hobbypoxy over Testors enamel finish Dave Landvater built 40%-scale Pitts 8 years ago Quadra-powered plane has hand-carved prop 21 dia 12 pitch Model capable airshow-style aerobatics Photo Kitchener-waterloo rally Harold deBolt scale models prefer lighter material have using 005 shim brass custom tanks fit odd spaces thickness brass extremely easy solder sharp bends can made effort weight kept minimum An 8-fluid-ounce tank will weigh about 1 ounces too different polyethylene tank made ultra high molecular weight raw material Almost shape can made forming around wood block preferred shape has V bottom tank can completely emptied absolute necessity after flying session have found brass erodes fuel unplated brass pickup field fuel container becomes porous after being immersed season Holes fuel vent tubes front surface can pierced easily sharp steel scriber Done care holes will slight press fit tube pierced hole actually extruded means affording wider solder surface Before soldering rear tank posi tion clunk tube weighted pickup installed Silicone tube material seems have long life sealed inside com pletely soldered tank weight made drilling -in hole hardwood block countersinking about -in diameter short length Vs brass tube inserted bottom countersink solder melted remaining depression wood becomes charred does flame some smoke may wise outdoors keep peace family tube cut off flush tip solder cone Bend silicone tube toward tank front soldering tank rear place avoid melting weight Brass sheets another hobby shop items found railroad section Sig catalog Usual sheet size 4 X 10 inches tank interior should flushed alcohol dope thinner remove solder flux residue designing constructing tank handy mea sure size requirements 18 co uid ounce Check leaks submerging water pressurizing lung power through fuel tube vent plugged calculate tank weight square inch 005 brass weighs 028 ounce Coming Events active scale organizations Scale Squadron Southern Califomia year will conducting first Master Scale Championship entrants come winners four regional contests Nats addition Squadron contest four contests Mint Julep Kentucky Tangerine Florida Sparks Philadelphia PA Milwaukee Flying Electrons Wisconsin Masters contest will held October 3-5 Mile Square Park Fountain Valley CA Winners through fifth place Sport Scale through third place Precision will qualify year site Masters will changed five participating clubs will have opportunity host meet will adhere strictly AMA rules second annual RC Hobbies Scale Jam boree will held Pebble Creek Field near Waukesha WI July 6th increasingly popular scale rallies draw large numbers modelers further information write Don Hoover RC Hobbies 18305 W Lisbon Rd Brookfield WI 53005 Scale Realism Again 1980-81 rules book reaches hands will contain newly approved Scale Flight Judges Guide will essentially same printed Novem ber 1978 issue ModelAviation pages 84 85 Serious competitors have very likely read guide formed opinions regarding adherence its contents aguide part rulesjudges will using material presented help make decisions during competition especially Nats other large meets should noted under heading Obligatory Flight Maneuvers sub-heading Realism Flight states specifically approximately half realism score should awarded scale-like speed applies everything done during complete flight judges guide received yes vote last years balloting scale contest board See January 1980 MA page 86 voting record Actually respect matter earnest effort contestant simulate scale speed just beginning catch up practices have become standard world-wide scale competition flying judging Acknow ledging scale speed unattainable mythological artifice its inclusion stated judges guide will draw attention during judging process serious modelers will en deavor comply Since have never successful achieving anything like scale speed models collection emphasis facet flight realism has always worry us going back early 1 970s first told would factor world championship contests have told assumption scale speed im possibility dead wrong RC Pylon/Hager continued page 28 immediately minimize opportunity sandbagging Some trophy-hunter experts will become disgrunted handicap system will soon move up QM Formula belong remain Handicap Quickie flying much improved due racing someone 1 2 lap head start addition handicap system can eliminate cost extra set Standard Class awards Instead provide single award Most Improved Best Performance flier system has proven races results well worth terms increased race attendance growing influx new blood sport Try next Quickie race Im sure youll like works! As can see area uses own system seems work well Get racers together decide rules best fit area good luck 1980 Bill Hager 4622 Bridgeport Dr Garland TX 75043 100 Model Aviation CUSTOM TUNED ENGINES Make Glow ~ Diesel 1 ETITION ACCESSORIES [ hA /4 Scale PowerSpecial GY 014 X 60 solid lines $295 ppd Usable Power Greater Economy tom needle valves racing wheels ISee AMA Bonus Benefit Couponquick fills fuel shut-o ifs B others IFor huge introductory discount andI detailed brochure send 25 cents dont forget stamped envelopeJKustom Kraftsmanship Box 2699 Laguna Hills l Davis Diesel Development Inc lif 92653 Ph f714 830-5162
Edition: Model Aviation - 1980/05
Page Numbers: 27, 99, 100
SCALE Bob & Dolly Wischer SLIDING Canopy Method canopy slides rails eye-catching features separate really excellent scale model ordinary isnt especially difficult produce can always copy methods used some full-size planes avoid problems involved invention scheme simplest schemes have seen employed telescoping square tubing outer tube slotted its full length represents canopy travel distance second shorter piece square tube slides within slotted tube has link fastened canopy frame Three slotted tubes used resulting three-point connection between fuselage canopy viewed above two points canopy front edge meets fuselage sides third located rearmost part canopy fuselage centerline Also top view three slotted tubes must reasonably parallel permit easy sliding operation binding essential fuselage sides tapered area slotted tubes fastened Should fuselage sides slightly tapered must possible fasten tubes parallel though may misaligned sides square brass telescoping tubes K & S Engineering can purchased hobby shops look tubing rack hardware store local stores carry K & S line sizes have used 3/16 outer tube 5/32 inner fit average 1/5 scale model outer tube clamped vise slot cut hack saw slot widened Swiss needle file inner tube needs long enough Continued page 99 CANOPY K - EPOXY CONTACT CEMENT TUBES TO TOP OFSLOTTED TAPPED FUSELAGE EDGE ALTERNATE ALUMINUM BLOCK SLOTTED ro ENGAGE REAR TUBE ENLARGED MUSIC WIRE - TELESCOPING SQUARE BRASS TUBE SOLDEREDENLARGED INSIDE Simple durable sliding canopy mechanism Read column further tips ___ _____-FOLD LINES o005 BRASS SHEET oWRAPPED AROUND WOOD BLOCK DEVELOPED1/8 SOLDER COUNTERSUNK WOOD BLOCK 1/8 TUBEFORM SOLDER SILICONE CUT TUBEOFF I/8OD TUBE SOLDERED May 1980 27 Typical scratch-built fuel tank must faced cramped tank compartment new modelwhere commercial tank wont fit Wischers have good tips column Dick Smiths Gee Bee Ri home air displays ItS natreo ror ground refusing taxi well Model built Bob Holman plans weighs gii2 lbs has 66-in span powered H P61 l clearly shows TLC its builder Super Poxy finish LOI OD IflacKers lurner Special seen Nats mini Roscoe Turner peers cockpit Bob replacing scale prop wood N Tanks ver half winning contestants 1979 National Model Airplane Cham pionships held Lincoln Nebraska specified what tank installed entries said using Sullivan Brand Over half No other brand could come close Champion modelers agree FULL TANK SYSTEM Sullivan has really put together built-in bubble space air tubing can fill way top enjoy extralong flights Just like other champions #1 Line o winners Winning control line flyers AMA championships chose Sullivan lines rate almost 3 1 over next popular brand Thats lead thats almost long four standard lengths . 35 52 60 70 . Sullivans Pylon Brand Control Lines dealers stock dont forget diameters run 008 up 021 size champions #1 Starters Big Brother years Sullivan has superstar starters starter turned whole world higher torque & RPMs heavy duty long life motor instant-on strip switch safety hand guard 2-year guarantee Now along comes newest winner its big brother 24-Volt powerhouse enough torque start almost anything Hard-to-start airplane boat car en gines big -scale monsters Almost anything Check new winner out favo rite dealers nt have yet tell him hurry cause hes keeping champion waiting . WARNING Modelers Fly Near Overhead Power Lines P R 0 D U C T S N C 535 DAVISVILLE ROAO OW GROVE PA 19090 215 650-3900 RC Scale/Wischers continued page 27 prevent window jamming sliding about slightly connectthe inner tube canopywe use U-shaped length 1/32 music wire soldered interior inner tube notch filed end keeps wire centered soldering wire extends through slot epoxied canopy frame Hobbypoxy Formula 3 thixotropic epoxy glue will stay put migrate down slot Epoxy runs space between inner outer tubes renders non-sliding canopy Fastening brass tubes balsa fuselage sides best accomplished contact cement better cements also hobby shop item borrowed model railroad group tube cement called Waithers Goo have brass-tobalsa joints canopies now eight years old still sound tiny bit light grease such Vaseline inner tube helps give smooth operation Another helpful trick round off inner tube ends fine file avoid galling often results brass-to-brass bearing surface bit extra effort canopy mounted described can made demountable can done using brass aluminum block third track rear canopy place inner square tube portion block runs inside slotted tube would have same dimensions inner tube 5/32-in thick piece aluminum has grooves filed its sides threaded hole exposed portion An aluminum bracket epoxied canopy held single screw canopy can dis engaged two front tubes leaving short space aft ends inner tubes will slide clear reduce weight keep length outer tubes sum canopy sliding distance plus /2 inch Fuel Tanks Sport training planes have suffi cient space accomodate commercial fuel tanks Too often scale enthusiast finds space fuselage shape no tank will fit cases like tend fall back use familiar materialssuch brass years ago first tanks made specifically RC modeling brass clank tank May 1980 99 werent snow fence lawn chairs background deHavilland Tiger Moth built Tom Dieterich Frank Evans would surely mistaken real thing Model 1/6 scale weighs 10 pounds Clear Hobbypoxy over Testors enamel finish Dave Landvater built 40%-scale Pitts 8 years ago Quadra-powered plane has hand-carved prop 21 dia 12 pitch Model capable airshow-style aerobatics Photo Kitchener-waterloo rally Harold deBolt scale models prefer lighter material have using 005 shim brass custom tanks fit odd spaces thickness brass extremely easy solder sharp bends can made effort weight kept minimum An 8-fluid-ounce tank will weigh about 1 ounces too different polyethylene tank made ultra high molecular weight raw material Almost shape can made forming around wood block preferred shape has V bottom tank can completely emptied absolute necessity after flying session have found brass erodes fuel unplated brass pickup field fuel container becomes porous after being immersed season Holes fuel vent tubes front surface can pierced easily sharp steel scriber Done care holes will slight press fit tube pierced hole actually extruded means affording wider solder surface Before soldering rear tank posi tion clunk tube weighted pickup installed Silicone tube material seems have long life sealed inside com pletely soldered tank weight made drilling -in hole hardwood block countersinking about -in diameter short length Vs brass tube inserted bottom countersink solder melted remaining depression wood becomes charred does flame some smoke may wise outdoors keep peace family tube cut off flush tip solder cone Bend silicone tube toward tank front soldering tank rear place avoid melting weight Brass sheets another hobby shop items found railroad section Sig catalog Usual sheet size 4 X 10 inches tank interior should flushed alcohol dope thinner remove solder flux residue designing constructing tank handy mea sure size requirements 18 co uid ounce Check leaks submerging water pressurizing lung power through fuel tube vent plugged calculate tank weight square inch 005 brass weighs 028 ounce Coming Events active scale organizations Scale Squadron Southern Califomia year will conducting first Master Scale Championship entrants come winners four regional contests Nats addition Squadron contest four contests Mint Julep Kentucky Tangerine Florida Sparks Philadelphia PA Milwaukee Flying Electrons Wisconsin Masters contest will held October 3-5 Mile Square Park Fountain Valley CA Winners through fifth place Sport Scale through third place Precision will qualify year site Masters will changed five participating clubs will have opportunity host meet will adhere strictly AMA rules second annual RC Hobbies Scale Jam boree will held Pebble Creek Field near Waukesha WI July 6th increasingly popular scale rallies draw large numbers modelers further information write Don Hoover RC Hobbies 18305 W Lisbon Rd Brookfield WI 53005 Scale Realism Again 1980-81 rules book reaches hands will contain newly approved Scale Flight Judges Guide will essentially same printed Novem ber 1978 issue ModelAviation pages 84 85 Serious competitors have very likely read guide formed opinions regarding adherence its contents aguide part rulesjudges will using material presented help make decisions during competition especially Nats other large meets should noted under heading Obligatory Flight Maneuvers sub-heading Realism Flight states specifically approximately half realism score should awarded scale-like speed applies everything done during complete flight judges guide received yes vote last years balloting scale contest board See January 1980 MA page 86 voting record Actually respect matter earnest effort contestant simulate scale speed just beginning catch up practices have become standard world-wide scale competition flying judging Acknow ledging scale speed unattainable mythological artifice its inclusion stated judges guide will draw attention during judging process serious modelers will en deavor comply Since have never successful achieving anything like scale speed models collection emphasis facet flight realism has always worry us going back early 1 970s first told would factor world championship contests have told assumption scale speed im possibility dead wrong RC Pylon/Hager continued page 28 immediately minimize opportunity sandbagging Some trophy-hunter experts will become disgrunted handicap system will soon move up QM Formula belong remain Handicap Quickie flying much improved due racing someone 1 2 lap head start addition handicap system can eliminate cost extra set Standard Class awards Instead provide single award Most Improved Best Performance flier system has proven races results well worth terms increased race attendance growing influx new blood sport Try next Quickie race Im sure youll like works! As can see area uses own system seems work well Get racers together decide rules best fit area good luck 1980 Bill Hager 4622 Bridgeport Dr Garland TX 75043 100 Model Aviation CUSTOM TUNED ENGINES Make Glow ~ Diesel 1 ETITION ACCESSORIES [ hA /4 Scale PowerSpecial GY 014 X 60 solid lines $295 ppd Usable Power Greater Economy tom needle valves racing wheels ISee AMA Bonus Benefit Couponquick fills fuel shut-o ifs B others IFor huge introductory discount andI detailed brochure send 25 cents dont forget stamped envelopeJKustom Kraftsmanship Box 2699 Laguna Hills l Davis Diesel Development Inc lif 92653 Ph f714 830-5162