Control Line. Scale Mike Gretz THE RELATIVELY new CL Sport Scale event seems gaining popularity parts country event introduced Nationals 1974 seemed like colossal dud two entries 76 Nationals Dayton Ohio entry zoomed total 36 among three age classifi cations Both experienced modelers newcomers discovering Sport Scale can just exciting less demanding thus liking Precision Scale Im sure will have Precision Scale class competitors models National International level quite some time its obvious very few modelers willing able devote amount time resources required class scale model reality think youll find Sport Scale models CL & RC winning local contests Nats now about same class far amount detail models winning regular CL RC scale events about 10 years ago Its great see more modelers discovering satisfaction enjoyment scale building through Sport Scale event all-time masters control line modeling Jack Sheeks Indianapolis Indiana well known flair semi-scale CL stunt designs Over past 20 years Jack has probably designed flown published control line ships modeler record year taking serious stab Sport Scale competition model famous Japanese A6M ZERO Jack built Zeke known WW2 Allied code M&K made Japan kit intended radio control Well known CL stunt modeler Jack Shacks built Japanese Zero Sport Scale Competition Note realistically weathered finish control-line leadouts slight rudder offset major modification necessary re design wing strip ailerons scale Left Piper Twin Commanche Nets Sport barn door type model weighs 3 Scale Champ Jeffrey Perez has interesting faapounds powered Como 40 tures including flexible silicone antennas low easily made antennas wont snap off engine Jack states Como 40 like made brittle material such Continued page 96 wood See text details Now theres mighty big chunk beautiful Spitfire Dennis Chan left risks stiff neck troubleshoot K&B 61 Some very nice details camouflage prop Top Flite 11/6 modern films butyrate look edge negative strip us forced use nitrate dope cement before intro duction fuelproof finishes have hor ror stories belching engines burning models Interestingly several recent ac counts incineration other magazines fail mention nitrate dope backfiring engines Nitrate dope fumes also extremely flammable caution should exercised applying confined space near open flame furnace hot water heater close proximity workbench can present severe hazard Also dont flick BIC doping nitrate may make ash yourself Nitrate dopes low shrink quick setting excellent compatibility epoxy polyurethane over-coats make desir able addition finishing techniques follow precautions printed label recent column magazine George Myers presented some excellent comments antenna placement its effect radio range Since range considerable interest fliers radioassist oldtimers Id recommend read remarks happened miss skeleton photo Powerhouse February column illustrates fav orite method installing antenna wire Nyrod tube running cabin tail area need gently push wire tubing pulling out through covering shorter fuselages Too oldtimers exhibit obvious failure consider antenna placement during con struction inevitable result being hunk wire flying around breeze Most un-oldtimer looking unless its important everyone know youve got radio model still have corrected copies SAM suppliers list available wonder plans kits engines hardware etc send large SSAE free list Get em last Theres prize box Bob Oslan advises discontinuing Cal Aero line Oldtimer kits has few series 50 Powerhouse Air Trails Sportster kits left Both 15cc 25 cc power two- three-channel radio As can seen photo Sport ster has unmistakable signs coming off Ben Shereshaws drawing board ever Oslan has enlarged original suitable size pre-cut pieces band sawn sanded wood well graded top quality plans instructions should adequate inexperienced builders fumble thumbs could build didnt fly well regrettable Cal Aero has chosen follow Chuck Gill withdraw ing oldtimer kit business Hope fully some other kitters will acquire Gills full-size Powerhouse Bob Oslans two designs last Cal Aero kits contact Bob Oslan 7142 Bluesails Drive Huntington Beach CA 92647 Dee B Mathews 506 South Walnut Greensburg KS 67054 CL Scale/Gretz continued page 38 Indy R/C exclusive item very fine running engine equal cost much paint Zero DuPont acrylic lacquer hand mixed match color 3-views photos Monogram Publications Jack will use scale presentation have questions contact Jack Sheeks 8815 East 21 St Indianapolis IN 46219 Championship Preview As may re member 1977 National Open CL Sport Scale Champion Jeffrey Perez Lard Kansas P-61 Black Widow Jeff 27 hobby shop operator Schoolyard Scale RC AA-powered sport/scale kits 2- 3-chan systems make good train ers having excellent performance Cessna 170A span 45 wing area 270 sq load ing 12 oz/sq ft scale 1% Bellanca Cruisemaster span 42% wing area 252 sq loading 12/a oz/sq ft scale 1 Power both models 049 051 Price $3000 Paul K Guillow Inc Wakefield MA 01880 product review product review product review recently sent some info latest sport scale model scratch-built Piper Twin Commanche PA-39 scaled 1 equals 1 yields 54 wing span Its powered two 0S25s 9-5 props weighs about 4 pounds throttle con trol operated braided cable end linked carburetor middle cable attached J Roberts 3-line bellcrank Twin Commanche features flying stab just full-size aircraft based Lamed airport As usually case Jeff found aircrafts owner Reed Peters very enthusiastic helping him get measurements photos needed reports Commanche flies very well currently building another first attempt Preci sion Scale Commanche finished Silkspan polyester resin car primer Dulux enamel colors Dulux Perez prefers use cellophane tape masking paint stripes numbers notes letter thing watch dont let whole width tape adhere paint job may lift paint removed can use paper under half tape like body shops just double tape over itself Another technique Jeff mentioned letter find especially ingenious involves three antennas Corn manches fuselage top thermometer windshield made two-piece mold polyester fiberglass resin used colored silicone seal mold end product As can see photos rubber antennas look realistic enough flexible wont breaking off other time inadvertently touch Perezs proce dure making silicone parts roughly follows First wooden plug actual scale part carefully shaped coats finished plug Sig Release Agent laid exactly half way down large pool polyester resin After resin cures hardens plug popped loose now have half mold make other half simply put plug back place first half coat both plug first half release agent cover resin form second half mold After second half cures separate halves remove plug molding silicone seal inside mold Jeff says remember silicone takes long time cure thick solid because tends skim over seal itself off outside air problem can beat drilling small air escape holes mold halves before filling silicone Mike Gretz Box 162 Montezuma IA 50171 writing advertimees mention read about MA 96 Model Aviation SCALE CLASICS Plans & Construction Manual cumss HAWK PeE STINSON RELIANT SR9 /aoie ado- Span 62200 10 SCale 126 Span 250 2-Scsi e3 Sean S12 2Scale edSpan eiB 1aScaS47taSpafl 1000 liSSoala 63 Span1200 CURTISS GOSI-IAWK P11CC 2 Scala 63 Span5i5Cc CURTISS GULPHAWK lA . 2SOaI 62 Span $1500 1c Scale 94/o 5pa 53000 Pleese Add 6150 Ps Ode Poeaae Sod U0dlCg. oldalde US Ada 5300Make Payments tc Richard G Barron1213 Holly Spring Lrl Grand 6lanc Michigan 46439 Seed aloe t0 Complete ldemetlon product review product review product review
Edition: Model Aviation - 1978/10
Page Numbers: 38, 96
Control Line. Scale Mike Gretz THE RELATIVELY new CL Sport Scale event seems gaining popularity parts country event introduced Nationals 1974 seemed like colossal dud two entries 76 Nationals Dayton Ohio entry zoomed total 36 among three age classifi cations Both experienced modelers newcomers discovering Sport Scale can just exciting less demanding thus liking Precision Scale Im sure will have Precision Scale class competitors models National International level quite some time its obvious very few modelers willing able devote amount time resources required class scale model reality think youll find Sport Scale models CL & RC winning local contests Nats now about same class far amount detail models winning regular CL RC scale events about 10 years ago Its great see more modelers discovering satisfaction enjoyment scale building through Sport Scale event all-time masters control line modeling Jack Sheeks Indianapolis Indiana well known flair semi-scale CL stunt designs Over past 20 years Jack has probably designed flown published control line ships modeler record year taking serious stab Sport Scale competition model famous Japanese A6M ZERO Jack built Zeke known WW2 Allied code M&K made Japan kit intended radio control Well known CL stunt modeler Jack Shacks built Japanese Zero Sport Scale Competition Note realistically weathered finish control-line leadouts slight rudder offset major modification necessary re design wing strip ailerons scale Left Piper Twin Commanche Nets Sport barn door type model weighs 3 Scale Champ Jeffrey Perez has interesting faapounds powered Como 40 tures including flexible silicone antennas low easily made antennas wont snap off engine Jack states Como 40 like made brittle material such Continued page 96 wood See text details Now theres mighty big chunk beautiful Spitfire Dennis Chan left risks stiff neck troubleshoot K&B 61 Some very nice details camouflage prop Top Flite 11/6 modern films butyrate look edge negative strip us forced use nitrate dope cement before intro duction fuelproof finishes have hor ror stories belching engines burning models Interestingly several recent ac counts incineration other magazines fail mention nitrate dope backfiring engines Nitrate dope fumes also extremely flammable caution should exercised applying confined space near open flame furnace hot water heater close proximity workbench can present severe hazard Also dont flick BIC doping nitrate may make ash yourself Nitrate dopes low shrink quick setting excellent compatibility epoxy polyurethane over-coats make desir able addition finishing techniques follow precautions printed label recent column magazine George Myers presented some excellent comments antenna placement its effect radio range Since range considerable interest fliers radioassist oldtimers Id recommend read remarks happened miss skeleton photo Powerhouse February column illustrates fav orite method installing antenna wire Nyrod tube running cabin tail area need gently push wire tubing pulling out through covering shorter fuselages Too oldtimers exhibit obvious failure consider antenna placement during con struction inevitable result being hunk wire flying around breeze Most un-oldtimer looking unless its important everyone know youve got radio model still have corrected copies SAM suppliers list available wonder plans kits engines hardware etc send large SSAE free list Get em last Theres prize box Bob Oslan advises discontinuing Cal Aero line Oldtimer kits has few series 50 Powerhouse Air Trails Sportster kits left Both 15cc 25 cc power two- three-channel radio As can seen photo Sport ster has unmistakable signs coming off Ben Shereshaws drawing board ever Oslan has enlarged original suitable size pre-cut pieces band sawn sanded wood well graded top quality plans instructions should adequate inexperienced builders fumble thumbs could build didnt fly well regrettable Cal Aero has chosen follow Chuck Gill withdraw ing oldtimer kit business Hope fully some other kitters will acquire Gills full-size Powerhouse Bob Oslans two designs last Cal Aero kits contact Bob Oslan 7142 Bluesails Drive Huntington Beach CA 92647 Dee B Mathews 506 South Walnut Greensburg KS 67054 CL Scale/Gretz continued page 38 Indy R/C exclusive item very fine running engine equal cost much paint Zero DuPont acrylic lacquer hand mixed match color 3-views photos Monogram Publications Jack will use scale presentation have questions contact Jack Sheeks 8815 East 21 St Indianapolis IN 46219 Championship Preview As may re member 1977 National Open CL Sport Scale Champion Jeffrey Perez Lard Kansas P-61 Black Widow Jeff 27 hobby shop operator Schoolyard Scale RC AA-powered sport/scale kits 2- 3-chan systems make good train ers having excellent performance Cessna 170A span 45 wing area 270 sq load ing 12 oz/sq ft scale 1% Bellanca Cruisemaster span 42% wing area 252 sq loading 12/a oz/sq ft scale 1 Power both models 049 051 Price $3000 Paul K Guillow Inc Wakefield MA 01880 product review product review product review recently sent some info latest sport scale model scratch-built Piper Twin Commanche PA-39 scaled 1 equals 1 yields 54 wing span Its powered two 0S25s 9-5 props weighs about 4 pounds throttle con trol operated braided cable end linked carburetor middle cable attached J Roberts 3-line bellcrank Twin Commanche features flying stab just full-size aircraft based Lamed airport As usually case Jeff found aircrafts owner Reed Peters very enthusiastic helping him get measurements photos needed reports Commanche flies very well currently building another first attempt Preci sion Scale Commanche finished Silkspan polyester resin car primer Dulux enamel colors Dulux Perez prefers use cellophane tape masking paint stripes numbers notes letter thing watch dont let whole width tape adhere paint job may lift paint removed can use paper under half tape like body shops just double tape over itself Another technique Jeff mentioned letter find especially ingenious involves three antennas Corn manches fuselage top thermometer windshield made two-piece mold polyester fiberglass resin used colored silicone seal mold end product As can see photos rubber antennas look realistic enough flexible wont breaking off other time inadvertently touch Perezs proce dure making silicone parts roughly follows First wooden plug actual scale part carefully shaped coats finished plug Sig Release Agent laid exactly half way down large pool polyester resin After resin cures hardens plug popped loose now have half mold make other half simply put plug back place first half coat both plug first half release agent cover resin form second half mold After second half cures separate halves remove plug molding silicone seal inside mold Jeff says remember silicone takes long time cure thick solid because tends skim over seal itself off outside air problem can beat drilling small air escape holes mold halves before filling silicone Mike Gretz Box 162 Montezuma IA 50171 writing advertimees mention read about MA 96 Model Aviation SCALE CLASICS Plans & Construction Manual cumss HAWK PeE STINSON RELIANT SR9 /aoie ado- Span 62200 10 SCale 126 Span 250 2-Scsi e3 Sean S12 2Scale edSpan eiB 1aScaS47taSpafl 1000 liSSoala 63 Span1200 CURTISS GOSI-IAWK P11CC 2 Scala 63 Span5i5Cc CURTISS GULPHAWK lA . 2SOaI 62 Span $1500 1c Scale 94/o 5pa 53000 Pleese Add 6150 Ps Ode Poeaae Sod U0dlCg. oldalde US Ada 5300Make Payments tc Richard G Barron1213 Holly Spring Lrl Grand 6lanc Michigan 46439 Seed aloe t0 Complete ldemetlon product review product review product review