BEFORE continue discussion flying March column want call something attention really neat Youve prob ably heard several series video tapes made Windy Urtnowski distributed Ken Budensiek 2522 East Milwaukee Janes yule WI 53545 tel 1-608/754-8921 sub ject series Windys new piped ship seven tapes other construction Nobler kit eight tapes As can see extensive series Hollywood production special light ing sound effects etc very knowledge able guy doing what obviously loves constructing fine CL Precision Acrobatic air craft Ken sent tapes wrote person stayed up two days watching thought Sure Ill just buzz through look some items interest got piped-ship tapes found always some kind technique pro cedure attracted want learn build competitive models kind absolute gold latest technology found tapes will find candid comprehen sive well done very very difficult stop watching excellent reference clubs should invest instructional aid really worth watching Last month discussed looking some fliers techniques use extract last bit performance planes month going show explore techniques work pattern Anyone has flown Control Line has played whipping some degree Putting en ergy Stunters system uses exactly same principle subtly much shorter duration Take two maneuvers Wing Over Four Leaf Clover experiment Start feeling plane responds little whip level flight Now get set entry Wing Over pull arm toward you apply Up control coordinated effort will take some practice get right What should experience airplane will drive up feel positive Keep trying until find effective comfortable input also ap plies inverted pullup course Overhead Eight also benefits little help entry Four Leaf Clover can significantly im proved two places entry through upper sections Again combination little body/arm pull does trick Its timing secret purely matter prac tice once find Out first place elevated entry Clover presents lot problems Youre bleeding off energy climb ing altitude must loop prevailing wind Establish altitude early just before entry take step back Bill Werwage Les McDonald really well entry will much cleaner Will set up better complete remainder ma neuver top loops Clover sometimes soft thats created having sufficient energy translates line tension properly po sition aircraft Just applied arm power Wing Over get plane transits bottom lower left loop Prop erly timed plane will drive hard top track go easily through downhill loops lower right loop repeat same procedure Remember timing factor may take several repetitions get just right touch Next month Ill get what look Continued page 164 66 Model Aviation Control Line Aerobatics Frank McMiIIan 12106 Gunter Grove San Antonio TX 78231 Mike Ditrichs rendition Steve Wooleys classic Argus design 1959 Light green paint job mimics original does its Fox 35 power Weight 38 oz Photo Mike Ditrich Gary Hays president Omamha NE Orbiting Eagles Club plane Su perTigre 60-powered Stiletto classic Les McDonald design won 3 CLPA World Championships still available MA Full-Size Plan No 193 mere $375 real bargain Photo Bob Furr Jim Lee Topeka KS Orbiting Eagles field Omaha gives fantastic support its CL modelers Photo Bob Furr Bob Baron former member US CLPA team brought ST 60-powered Avanti 89 team trials Indianapolis IN Photo Windy Urtnowski will keep lines taut Just dont try fly strong winds strong strong dont have magic yardstick can tell careful should also pull elevator arm off servo bellcrank doesnt put drag servo coreless servos have little inherent drag just doesnt make sense move unnec essarily fly Thingamabob tethered model youll probably pioneer mode Again rudder pushrod must tached rudder post Watch nose wheel doesnt turn model side circle little outv d turn ac ceptable inside turning isr . Unlike flying Control Line cant backpedal keep lines tight model veers cir cle can chop throttle give down elevatorand crash lower altitude tether goes through center guide wing tip Again recommend no less 50 ft line Use 021 braided line can check AMA Competition Regulations book find out acceptable ways connect control lines tether center post something unknown quantity post pictured article constructed Frank Ander son belongs organization Canadian equivalent AMA beautifully built welded stock freely operating swivel top large plate welded bottom Using two ordinary concrete blocks hold down Ive encountered no problem tip ping operating either grass pave ment Watch magazines since under stand marketing Franks unit may offing certainly has met expectations Other approaches tether center post certainly possible important thing keep mind safety Remember model should come off tether have no means maintaining level flight since despite throttle elevator control rudder locked right name Thingamabob coined good friend St Louis problem describing model just day friend cleverer knew What skipped right rather long stretch time name broke down didnt pick up meaning finally woke up realized said Thing-AMA-Bob Now know spent 30 years fifth gradeteaching Nonmodeler staff members AMA Headquarters have flown trainer have others hope enjoy much have Remembering its nothing fancy keeps things perspective should also noted model now property AMA turning over rights AMA made pro vision Any profits might accrue its use others would channeled promotion support youth activi ties within Academy Would like make kit design CL Aerobatics/McMiIIan Continued page 66 pits give some insight to make plane perform better under varying conditions Now some tips first concerns warps Everyone experiences problem plane plane What going deal few dos help preserve die-straight surface just completed starting cover paint Always paint/cover opposite side sur face quickly possible after doing first side drying process does induce uneven stress structure Store freshly painted plane its pieces after coat paint vertical po sition Out drying/curing pro cess basic plane adjust holding fix ture tail pointed straight up movable surfaces align holding jig hinge lines vertical have fixtures surfaces dont Unfortunately know bad things hap pen occasion warp will creep wayusually bow flap Try following procedure has worked well years What construct simple drying jig CAT NO 106 Proof Switch Retail S995 Add $125 shipping Send $150 catalog Michigan residents add 40/0 sales tax IMPROVE YOUR 1991 SWITCH OVER ej Proof Switch Positive Locking Prevents Arriving field dead batteries Accidental switching off before take-off Will vibrate apart causing loss radio Does require special mounts Works radios Ideal seaplanes completely water proof SEE YOUR LOCAL HOBBY DEALER unavailable locally send Bru Line Industries Inc 4mm PO Box 3786 Center Line MI 48015 Model Hardware iIibIr Worlds Moat Complete Hardware Catalog HOBBY SUPPLY SOUTH 5060 Glade Road Acworth GA 30101 14041 974-0843 164 Model Aviation SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunbird 10 Sunbird Jr youll find Sunbird perfect sport plane %fl PRECISION PRODUCTS INC 714 592-5144 SlOE Arrow Highway San Dimas CA 91773 FEATURING Fully illustrated manufalurers fuN line shown Hard*are tools paints adhesIves engines. invaluable reference pfoduct selection use Unique HSS brand products mn serious modeler$300 ppd holds surfaces alignment paint takes permanent set jig consists some scrap particle board plywood approximately 30 long Draw straight line down middle board length wise Glue piece -in-sq balsa line side piece will straight line fixture Next take another piece -in-sq balsa bevel side will glued down board thereby forming tapered slot between master piece balsa Measure separation space will cradle trail ing edge flap going put slot snugly holding dead straight al lowing trailing edge touch base plate fixture same other side first h-in-sq piece balsa will give two parallel slots insert flaps Give flaps another coat paint allow set up about 20 30 minutes sert flaps trailing edge first drying jig Push just enough get firm hold will see flap form straight edge jig Let set up overnight should have good Set flaps Note may have re peat procedure several coats paint does work persistent CL Scale/Boss Continued page 67 bellcranks might also possible change position engine throttle arm loosening screw rotating arm 1800 obtain travel direction matching bellcrank being used possible way determining what type link age would best particular model might make mockup breadboard-type installa tion Place engine tank bellcrank breadboard based dimensions man ner will installed model can now try alternate forms throttle linkage determine type would work best model trial error better per formed breadboard rather mo del Once again would like thank Gerry De neau thoughts ideas used months throttle linkage item Notes NASA much talked about least column Scale Data Source List complete being shipped National Associ ation Scale Aeromodelers NASA members dues paid up through 1990 Scale Data Source List primarily Made America American Technology VMODEL ENt3tNES RJL Manufactures USA RJL RIG & U/C ENGINES 15 thru 61 Forster Glow & Ignition Engines FACTORY PARTS & SERVICE FOR HB Engines Cox Conquest 15 Kraft 61 Taipan 40 HGK Engines Testor/McCoy Series 21 Forster Remco Viking twin work Claude McCullough committee consisted Phil Renfro Kenneth R Smith Jeff Whitney Bob Banka thanks Claude committee hours contributed project source list covers very wide selection data sources government agencies muse ums libraries photographs aircraft draw ings periodicals aviation book dealers tech man uals Scale model construction drawings paid up 1990 member NASA would good time get dues become member Dues cost $8 New members receive patch decal Scale Data Source List NASA newslet ter Replica As member will getting some very valuable information will supporting facets Scale aeromodeling USA Renew join now Send dues NASA Secretary Bert Dugan 11090 Phyllis Dr Clio MI 48420 would also like note Mike Welshans dedicated CL Scale modeler frequent contrib utor column has become associate edi tor NASA newsletter am sure NASA members can look forward seeing CL Scale newsletter addition sending items use column might want drop Mike line now let him know whats happening CL Scale area Good luck Mike new endeavor Bob Furr Orbiting Eagles Omaha back month some very help ful hints workshop Bob points out have never taken casual stroll through well-stocked hardware store have missed out unusual source model supplies entertaining afternoon know hard ware stores carry tools good can also provide model construction materials nonstop variety odds ends Tools metal supplies area store youll find item modelers can use time another thrust wedges Theyre found aisle has replacement handles axes used hold head place hardwood wedges just happen make Out standing thrust wedges available vari ety sizes Another item found tools section 36-in metal ruler always handy workshop However times need straightedge thats longer three feet Bob sug gests using aluminum bar stock avail able lengths up eight feet Its about 3/ thick comes widths di tion bar stock can cut shape form metal engine mounting plate will increase SPORT FREE-FLIGHT ORSMALLRC K/ Y[ II Watt Sigh ttticiersy Motor Versatile & Light Weight /7o 2003 tel Operation /7/!CandIes 1 lao 250in Models 6/7 Z7 PRECISION MODEL PRODUCTS Made U S BARSTOCK ALUMINUM SPINNERS RelailApprox Part NoSize Price Weight 11-150-8'1-112$1395058oz TT-175-B.. 1-3141495095oz 11-200-B1595100oz TI225-B.. 2114159516002 TT-226-B 4 FAIl 1895150oz 11-250-B.. 21121895.. 1 90oz TI-251-B 2-112FAI 2095.. 170oz TT-275-B . 2-3142295.. 220oz 11-276-B 314FAt . 200oz 11-300-B 02 TT301-B FAt . 2 11-325-B . 3-1/4 95 . 34002 TT-350-B. 31/24995 2 TT-375-B 4 . 5995 . 2 11-400-B . 6995 2 3 Pieces Cone Back Plate Retainer Screw Note 3 4 Blade Spinners Available Sizes Add S3OO Per Spinner RetailApprox PriceWeight S495 . 0 61 02 49506102 495063 02 4 95082 02 49507602 49507602 49507602 49507502 595.11702 59511502 3 Pieces Nut Washer Machined Bushing Add S350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 April 1990 165 PROP NUT ADAPTORS V Part NoSize TT-140-A .. 114-28 TT147-A 1/4-2817mm 11-610-A 6x 1 0mm TI-710-A 10mm TT-516-A 5/16-24 11-518-A 5/16-24/8mm TT-810-AOx 10mm 11825-A8 x 1 25mm 11-375-A318-24 TT125-AlOx 125mm Colt wrote free information RJL Industries PO Box 5 Sierra Ma&e CA 91025 818 359-0016 swd5t Ia aptt Ca
Edition: Model Aviation - 1990/04
Page Numbers: 66, 164, 165
BEFORE continue discussion flying March column want call something attention really neat Youve prob ably heard several series video tapes made Windy Urtnowski distributed Ken Budensiek 2522 East Milwaukee Janes yule WI 53545 tel 1-608/754-8921 sub ject series Windys new piped ship seven tapes other construction Nobler kit eight tapes As can see extensive series Hollywood production special light ing sound effects etc very knowledge able guy doing what obviously loves constructing fine CL Precision Acrobatic air craft Ken sent tapes wrote person stayed up two days watching thought Sure Ill just buzz through look some items interest got piped-ship tapes found always some kind technique pro cedure attracted want learn build competitive models kind absolute gold latest technology found tapes will find candid comprehen sive well done very very difficult stop watching excellent reference clubs should invest instructional aid really worth watching Last month discussed looking some fliers techniques use extract last bit performance planes month going show explore techniques work pattern Anyone has flown Control Line has played whipping some degree Putting en ergy Stunters system uses exactly same principle subtly much shorter duration Take two maneuvers Wing Over Four Leaf Clover experiment Start feeling plane responds little whip level flight Now get set entry Wing Over pull arm toward you apply Up control coordinated effort will take some practice get right What should experience airplane will drive up feel positive Keep trying until find effective comfortable input also ap plies inverted pullup course Overhead Eight also benefits little help entry Four Leaf Clover can significantly im proved two places entry through upper sections Again combination little body/arm pull does trick Its timing secret purely matter prac tice once find Out first place elevated entry Clover presents lot problems Youre bleeding off energy climb ing altitude must loop prevailing wind Establish altitude early just before entry take step back Bill Werwage Les McDonald really well entry will much cleaner Will set up better complete remainder ma neuver top loops Clover sometimes soft thats created having sufficient energy translates line tension properly po sition aircraft Just applied arm power Wing Over get plane transits bottom lower left loop Prop erly timed plane will drive hard top track go easily through downhill loops lower right loop repeat same procedure Remember timing factor may take several repetitions get just right touch Next month Ill get what look Continued page 164 66 Model Aviation Control Line Aerobatics Frank McMiIIan 12106 Gunter Grove San Antonio TX 78231 Mike Ditrichs rendition Steve Wooleys classic Argus design 1959 Light green paint job mimics original does its Fox 35 power Weight 38 oz Photo Mike Ditrich Gary Hays president Omamha NE Orbiting Eagles Club plane Su perTigre 60-powered Stiletto classic Les McDonald design won 3 CLPA World Championships still available MA Full-Size Plan No 193 mere $375 real bargain Photo Bob Furr Jim Lee Topeka KS Orbiting Eagles field Omaha gives fantastic support its CL modelers Photo Bob Furr Bob Baron former member US CLPA team brought ST 60-powered Avanti 89 team trials Indianapolis IN Photo Windy Urtnowski will keep lines taut Just dont try fly strong winds strong strong dont have magic yardstick can tell careful should also pull elevator arm off servo bellcrank doesnt put drag servo coreless servos have little inherent drag just doesnt make sense move unnec essarily fly Thingamabob tethered model youll probably pioneer mode Again rudder pushrod must tached rudder post Watch nose wheel doesnt turn model side circle little outv d turn ac ceptable inside turning isr . Unlike flying Control Line cant backpedal keep lines tight model veers cir cle can chop throttle give down elevatorand crash lower altitude tether goes through center guide wing tip Again recommend no less 50 ft line Use 021 braided line can check AMA Competition Regulations book find out acceptable ways connect control lines tether center post something unknown quantity post pictured article constructed Frank Ander son belongs organization Canadian equivalent AMA beautifully built welded stock freely operating swivel top large plate welded bottom Using two ordinary concrete blocks hold down Ive encountered no problem tip ping operating either grass pave ment Watch magazines since under stand marketing Franks unit may offing certainly has met expectations Other approaches tether center post certainly possible important thing keep mind safety Remember model should come off tether have no means maintaining level flight since despite throttle elevator control rudder locked right name Thingamabob coined good friend St Louis problem describing model just day friend cleverer knew What skipped right rather long stretch time name broke down didnt pick up meaning finally woke up realized said Thing-AMA-Bob Now know spent 30 years fifth gradeteaching Nonmodeler staff members AMA Headquarters have flown trainer have others hope enjoy much have Remembering its nothing fancy keeps things perspective should also noted model now property AMA turning over rights AMA made pro vision Any profits might accrue its use others would channeled promotion support youth activi ties within Academy Would like make kit design CL Aerobatics/McMiIIan Continued page 66 pits give some insight to make plane perform better under varying conditions Now some tips first concerns warps Everyone experiences problem plane plane What going deal few dos help preserve die-straight surface just completed starting cover paint Always paint/cover opposite side sur face quickly possible after doing first side drying process does induce uneven stress structure Store freshly painted plane its pieces after coat paint vertical po sition Out drying/curing pro cess basic plane adjust holding fix ture tail pointed straight up movable surfaces align holding jig hinge lines vertical have fixtures surfaces dont Unfortunately know bad things hap pen occasion warp will creep wayusually bow flap Try following procedure has worked well years What construct simple drying jig CAT NO 106 Proof Switch Retail S995 Add $125 shipping Send $150 catalog Michigan residents add 40/0 sales tax IMPROVE YOUR 1991 SWITCH OVER ej Proof Switch Positive Locking Prevents Arriving field dead batteries Accidental switching off before take-off Will vibrate apart causing loss radio Does require special mounts Works radios Ideal seaplanes completely water proof SEE YOUR LOCAL HOBBY DEALER unavailable locally send Bru Line Industries Inc 4mm PO Box 3786 Center Line MI 48015 Model Hardware iIibIr Worlds Moat Complete Hardware Catalog HOBBY SUPPLY SOUTH 5060 Glade Road Acworth GA 30101 14041 974-0843 164 Model Aviation SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunbird 10 Sunbird Jr youll find Sunbird perfect sport plane %fl PRECISION PRODUCTS INC 714 592-5144 SlOE Arrow Highway San Dimas CA 91773 FEATURING Fully illustrated manufalurers fuN line shown Hard*are tools paints adhesIves engines. invaluable reference pfoduct selection use Unique HSS brand products mn serious modeler$300 ppd holds surfaces alignment paint takes permanent set jig consists some scrap particle board plywood approximately 30 long Draw straight line down middle board length wise Glue piece -in-sq balsa line side piece will straight line fixture Next take another piece -in-sq balsa bevel side will glued down board thereby forming tapered slot between master piece balsa Measure separation space will cradle trail ing edge flap going put slot snugly holding dead straight al lowing trailing edge touch base plate fixture same other side first h-in-sq piece balsa will give two parallel slots insert flaps Give flaps another coat paint allow set up about 20 30 minutes sert flaps trailing edge first drying jig Push just enough get firm hold will see flap form straight edge jig Let set up overnight should have good Set flaps Note may have re peat procedure several coats paint does work persistent CL Scale/Boss Continued page 67 bellcranks might also possible change position engine throttle arm loosening screw rotating arm 1800 obtain travel direction matching bellcrank being used possible way determining what type link age would best particular model might make mockup breadboard-type installa tion Place engine tank bellcrank breadboard based dimensions man ner will installed model can now try alternate forms throttle linkage determine type would work best model trial error better per formed breadboard rather mo del Once again would like thank Gerry De neau thoughts ideas used months throttle linkage item Notes NASA much talked about least column Scale Data Source List complete being shipped National Associ ation Scale Aeromodelers NASA members dues paid up through 1990 Scale Data Source List primarily Made America American Technology VMODEL ENt3tNES RJL Manufactures USA RJL RIG & U/C ENGINES 15 thru 61 Forster Glow & Ignition Engines FACTORY PARTS & SERVICE FOR HB Engines Cox Conquest 15 Kraft 61 Taipan 40 HGK Engines Testor/McCoy Series 21 Forster Remco Viking twin work Claude McCullough committee consisted Phil Renfro Kenneth R Smith Jeff Whitney Bob Banka thanks Claude committee hours contributed project source list covers very wide selection data sources government agencies muse ums libraries photographs aircraft draw ings periodicals aviation book dealers tech man uals Scale model construction drawings paid up 1990 member NASA would good time get dues become member Dues cost $8 New members receive patch decal Scale Data Source List NASA newslet ter Replica As member will getting some very valuable information will supporting facets Scale aeromodeling USA Renew join now Send dues NASA Secretary Bert Dugan 11090 Phyllis Dr Clio MI 48420 would also like note Mike Welshans dedicated CL Scale modeler frequent contrib utor column has become associate edi tor NASA newsletter am sure NASA members can look forward seeing CL Scale newsletter addition sending items use column might want drop Mike line now let him know whats happening CL Scale area Good luck Mike new endeavor Bob Furr Orbiting Eagles Omaha back month some very help ful hints workshop Bob points out have never taken casual stroll through well-stocked hardware store have missed out unusual source model supplies entertaining afternoon know hard ware stores carry tools good can also provide model construction materials nonstop variety odds ends Tools metal supplies area store youll find item modelers can use time another thrust wedges Theyre found aisle has replacement handles axes used hold head place hardwood wedges just happen make Out standing thrust wedges available vari ety sizes Another item found tools section 36-in metal ruler always handy workshop However times need straightedge thats longer three feet Bob sug gests using aluminum bar stock avail able lengths up eight feet Its about 3/ thick comes widths di tion bar stock can cut shape form metal engine mounting plate will increase SPORT FREE-FLIGHT ORSMALLRC K/ Y[ II Watt Sigh ttticiersy Motor Versatile & Light Weight /7o 2003 tel Operation /7/!CandIes 1 lao 250in Models 6/7 Z7 PRECISION MODEL PRODUCTS Made U S BARSTOCK ALUMINUM SPINNERS RelailApprox Part NoSize Price Weight 11-150-8'1-112$1395058oz TT-175-B.. 1-3141495095oz 11-200-B1595100oz TI225-B.. 2114159516002 TT-226-B 4 FAIl 1895150oz 11-250-B.. 21121895.. 1 90oz TI-251-B 2-112FAI 2095.. 170oz TT-275-B . 2-3142295.. 220oz 11-276-B 314FAt . 200oz 11-300-B 02 TT301-B FAt . 2 11-325-B . 3-1/4 95 . 34002 TT-350-B. 31/24995 2 TT-375-B 4 . 5995 . 2 11-400-B . 6995 2 3 Pieces Cone Back Plate Retainer Screw Note 3 4 Blade Spinners Available Sizes Add S3OO Per Spinner RetailApprox PriceWeight S495 . 0 61 02 49506102 495063 02 4 95082 02 49507602 49507602 49507602 49507502 595.11702 59511502 3 Pieces Nut Washer Machined Bushing Add S350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 April 1990 165 PROP NUT ADAPTORS V Part NoSize TT-140-A .. 114-28 TT147-A 1/4-2817mm 11-610-A 6x 1 0mm TI-710-A 10mm TT-516-A 5/16-24 11-518-A 5/16-24/8mm TT-810-AOx 10mm 11825-A8 x 1 25mm 11-375-A318-24 TT125-AlOx 125mm Colt wrote free information RJL Industries PO Box 5 Sierra Ma&e CA 91025 818 359-0016 swd5t Ia aptt Ca
Edition: Model Aviation - 1990/04
Page Numbers: 66, 164, 165
BEFORE continue discussion flying March column want call something attention really neat Youve prob ably heard several series video tapes made Windy Urtnowski distributed Ken Budensiek 2522 East Milwaukee Janes yule WI 53545 tel 1-608/754-8921 sub ject series Windys new piped ship seven tapes other construction Nobler kit eight tapes As can see extensive series Hollywood production special light ing sound effects etc very knowledge able guy doing what obviously loves constructing fine CL Precision Acrobatic air craft Ken sent tapes wrote person stayed up two days watching thought Sure Ill just buzz through look some items interest got piped-ship tapes found always some kind technique pro cedure attracted want learn build competitive models kind absolute gold latest technology found tapes will find candid comprehen sive well done very very difficult stop watching excellent reference clubs should invest instructional aid really worth watching Last month discussed looking some fliers techniques use extract last bit performance planes month going show explore techniques work pattern Anyone has flown Control Line has played whipping some degree Putting en ergy Stunters system uses exactly same principle subtly much shorter duration Take two maneuvers Wing Over Four Leaf Clover experiment Start feeling plane responds little whip level flight Now get set entry Wing Over pull arm toward you apply Up control coordinated effort will take some practice get right What should experience airplane will drive up feel positive Keep trying until find effective comfortable input also ap plies inverted pullup course Overhead Eight also benefits little help entry Four Leaf Clover can significantly im proved two places entry through upper sections Again combination little body/arm pull does trick Its timing secret purely matter prac tice once find Out first place elevated entry Clover presents lot problems Youre bleeding off energy climb ing altitude must loop prevailing wind Establish altitude early just before entry take step back Bill Werwage Les McDonald really well entry will much cleaner Will set up better complete remainder ma neuver top loops Clover sometimes soft thats created having sufficient energy translates line tension properly po sition aircraft Just applied arm power Wing Over get plane transits bottom lower left loop Prop erly timed plane will drive hard top track go easily through downhill loops lower right loop repeat same procedure Remember timing factor may take several repetitions get just right touch Next month Ill get what look Continued page 164 66 Model Aviation Control Line Aerobatics Frank McMiIIan 12106 Gunter Grove San Antonio TX 78231 Mike Ditrichs rendition Steve Wooleys classic Argus design 1959 Light green paint job mimics original does its Fox 35 power Weight 38 oz Photo Mike Ditrich Gary Hays president Omamha NE Orbiting Eagles Club plane Su perTigre 60-powered Stiletto classic Les McDonald design won 3 CLPA World Championships still available MA Full-Size Plan No 193 mere $375 real bargain Photo Bob Furr Jim Lee Topeka KS Orbiting Eagles field Omaha gives fantastic support its CL modelers Photo Bob Furr Bob Baron former member US CLPA team brought ST 60-powered Avanti 89 team trials Indianapolis IN Photo Windy Urtnowski will keep lines taut Just dont try fly strong winds strong strong dont have magic yardstick can tell careful should also pull elevator arm off servo bellcrank doesnt put drag servo coreless servos have little inherent drag just doesnt make sense move unnec essarily fly Thingamabob tethered model youll probably pioneer mode Again rudder pushrod must tached rudder post Watch nose wheel doesnt turn model side circle little outv d turn ac ceptable inside turning isr . Unlike flying Control Line cant backpedal keep lines tight model veers cir cle can chop throttle give down elevatorand crash lower altitude tether goes through center guide wing tip Again recommend no less 50 ft line Use 021 braided line can check AMA Competition Regulations book find out acceptable ways connect control lines tether center post something unknown quantity post pictured article constructed Frank Ander son belongs organization Canadian equivalent AMA beautifully built welded stock freely operating swivel top large plate welded bottom Using two ordinary concrete blocks hold down Ive encountered no problem tip ping operating either grass pave ment Watch magazines since under stand marketing Franks unit may offing certainly has met expectations Other approaches tether center post certainly possible important thing keep mind safety Remember model should come off tether have no means maintaining level flight since despite throttle elevator control rudder locked right name Thingamabob coined good friend St Louis problem describing model just day friend cleverer knew What skipped right rather long stretch time name broke down didnt pick up meaning finally woke up realized said Thing-AMA-Bob Now know spent 30 years fifth gradeteaching Nonmodeler staff members AMA Headquarters have flown trainer have others hope enjoy much have Remembering its nothing fancy keeps things perspective should also noted model now property AMA turning over rights AMA made pro vision Any profits might accrue its use others would channeled promotion support youth activi ties within Academy Would like make kit design CL Aerobatics/McMiIIan Continued page 66 pits give some insight to make plane perform better under varying conditions Now some tips first concerns warps Everyone experiences problem plane plane What going deal few dos help preserve die-straight surface just completed starting cover paint Always paint/cover opposite side sur face quickly possible after doing first side drying process does induce uneven stress structure Store freshly painted plane its pieces after coat paint vertical po sition Out drying/curing pro cess basic plane adjust holding fix ture tail pointed straight up movable surfaces align holding jig hinge lines vertical have fixtures surfaces dont Unfortunately know bad things hap pen occasion warp will creep wayusually bow flap Try following procedure has worked well years What construct simple drying jig CAT NO 106 Proof Switch Retail S995 Add $125 shipping Send $150 catalog Michigan residents add 40/0 sales tax IMPROVE YOUR 1991 SWITCH OVER ej Proof Switch Positive Locking Prevents Arriving field dead batteries Accidental switching off before take-off Will vibrate apart causing loss radio Does require special mounts Works radios Ideal seaplanes completely water proof SEE YOUR LOCAL HOBBY DEALER unavailable locally send Bru Line Industries Inc 4mm PO Box 3786 Center Line MI 48015 Model Hardware iIibIr Worlds Moat Complete Hardware Catalog HOBBY SUPPLY SOUTH 5060 Glade Road Acworth GA 30101 14041 974-0843 164 Model Aviation SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunbird 10 Sunbird Jr youll find Sunbird perfect sport plane %fl PRECISION PRODUCTS INC 714 592-5144 SlOE Arrow Highway San Dimas CA 91773 FEATURING Fully illustrated manufalurers fuN line shown Hard*are tools paints adhesIves engines. invaluable reference pfoduct selection use Unique HSS brand products mn serious modeler$300 ppd holds surfaces alignment paint takes permanent set jig consists some scrap particle board plywood approximately 30 long Draw straight line down middle board length wise Glue piece -in-sq balsa line side piece will straight line fixture Next take another piece -in-sq balsa bevel side will glued down board thereby forming tapered slot between master piece balsa Measure separation space will cradle trail ing edge flap going put slot snugly holding dead straight al lowing trailing edge touch base plate fixture same other side first h-in-sq piece balsa will give two parallel slots insert flaps Give flaps another coat paint allow set up about 20 30 minutes sert flaps trailing edge first drying jig Push just enough get firm hold will see flap form straight edge jig Let set up overnight should have good Set flaps Note may have re peat procedure several coats paint does work persistent CL Scale/Boss Continued page 67 bellcranks might also possible change position engine throttle arm loosening screw rotating arm 1800 obtain travel direction matching bellcrank being used possible way determining what type link age would best particular model might make mockup breadboard-type installa tion Place engine tank bellcrank breadboard based dimensions man ner will installed model can now try alternate forms throttle linkage determine type would work best model trial error better per formed breadboard rather mo del Once again would like thank Gerry De neau thoughts ideas used months throttle linkage item Notes NASA much talked about least column Scale Data Source List complete being shipped National Associ ation Scale Aeromodelers NASA members dues paid up through 1990 Scale Data Source List primarily Made America American Technology VMODEL ENt3tNES RJL Manufactures USA RJL RIG & U/C ENGINES 15 thru 61 Forster Glow & Ignition Engines FACTORY PARTS & SERVICE FOR HB Engines Cox Conquest 15 Kraft 61 Taipan 40 HGK Engines Testor/McCoy Series 21 Forster Remco Viking twin work Claude McCullough committee consisted Phil Renfro Kenneth R Smith Jeff Whitney Bob Banka thanks Claude committee hours contributed project source list covers very wide selection data sources government agencies muse ums libraries photographs aircraft draw ings periodicals aviation book dealers tech man uals Scale model construction drawings paid up 1990 member NASA would good time get dues become member Dues cost $8 New members receive patch decal Scale Data Source List NASA newslet ter Replica As member will getting some very valuable information will supporting facets Scale aeromodeling USA Renew join now Send dues NASA Secretary Bert Dugan 11090 Phyllis Dr Clio MI 48420 would also like note Mike Welshans dedicated CL Scale modeler frequent contrib utor column has become associate edi tor NASA newsletter am sure NASA members can look forward seeing CL Scale newsletter addition sending items use column might want drop Mike line now let him know whats happening CL Scale area Good luck Mike new endeavor Bob Furr Orbiting Eagles Omaha back month some very help ful hints workshop Bob points out have never taken casual stroll through well-stocked hardware store have missed out unusual source model supplies entertaining afternoon know hard ware stores carry tools good can also provide model construction materials nonstop variety odds ends Tools metal supplies area store youll find item modelers can use time another thrust wedges Theyre found aisle has replacement handles axes used hold head place hardwood wedges just happen make Out standing thrust wedges available vari ety sizes Another item found tools section 36-in metal ruler always handy workshop However times need straightedge thats longer three feet Bob sug gests using aluminum bar stock avail able lengths up eight feet Its about 3/ thick comes widths di tion bar stock can cut shape form metal engine mounting plate will increase SPORT FREE-FLIGHT ORSMALLRC K/ Y[ II Watt Sigh ttticiersy Motor Versatile & Light Weight /7o 2003 tel Operation /7/!CandIes 1 lao 250in Models 6/7 Z7 PRECISION MODEL PRODUCTS Made U S BARSTOCK ALUMINUM SPINNERS RelailApprox Part NoSize Price Weight 11-150-8'1-112$1395058oz TT-175-B.. 1-3141495095oz 11-200-B1595100oz TI225-B.. 2114159516002 TT-226-B 4 FAIl 1895150oz 11-250-B.. 21121895.. 1 90oz TI-251-B 2-112FAI 2095.. 170oz TT-275-B . 2-3142295.. 220oz 11-276-B 314FAt . 200oz 11-300-B 02 TT301-B FAt . 2 11-325-B . 3-1/4 95 . 34002 TT-350-B. 31/24995 2 TT-375-B 4 . 5995 . 2 11-400-B . 6995 2 3 Pieces Cone Back Plate Retainer Screw Note 3 4 Blade Spinners Available Sizes Add S3OO Per Spinner RetailApprox PriceWeight S495 . 0 61 02 49506102 495063 02 4 95082 02 49507602 49507602 49507602 49507502 595.11702 59511502 3 Pieces Nut Washer Machined Bushing Add S350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 April 1990 165 PROP NUT ADAPTORS V Part NoSize TT-140-A .. 114-28 TT147-A 1/4-2817mm 11-610-A 6x 1 0mm TI-710-A 10mm TT-516-A 5/16-24 11-518-A 5/16-24/8mm TT-810-AOx 10mm 11825-A8 x 1 25mm 11-375-A318-24 TT125-AlOx 125mm Colt wrote free information RJL Industries PO Box 5 Sierra Ma&e CA 91025 818 359-0016 swd5t Ia aptt Ca