RADIO CONTROL GIANTS E9 11111Uj j m I1 I1 [1 d- r eUi 1 F.UPi5 BEAUTIFUL warm spring day Radio Control RC flying field Only couple models tracing filmy exhaust trails blue sky airplanes heads runway low pass scream engine grabs everyones attention model dives earthward happens As flier pulls model sharply out dive theres ominous craaakand wing folds up middle fuselage now bereft lift spears runway debris scattered everywhere Balsa plywood propeller spinner engine radio create long swath destruction Above half-wing flutters slowly earth Too Us gravity consensus modelers witnessed crash modeling population have possibly witnessed sort ugly end RC flight Too Us isnt whole story poorly braced wing center section might have waiting high-U pull-out maybe plywood dihedral braces werent sufficiently epoxied wing spars fiberglass scab over center section wing wasnt fully adhered wings planking Assuming earlier precise joining wing halves maybe things came apart because extended vibration after flights fuelsoaked joints may have decided enough enough Anyhow wing failed its most-stressed locationthe center section type wing construction probably sensitive center-section failure two foam sections butt-joined either plywood dihedral braces Most type wings strength relies fiberglass cloth wrapping center section fiberglass tape fixed place bath CyA cyanoacrylate glue resin epoxy Properly done fiberglassing wings center section holds things together pretty well its very important glue penetrates wing sheeting Wings conventional rib-and-spar construction usually much stronger particularly theyre sheeted balsa thin plywood foam-core wings usually dihedral braces can fully adhered spars before wing center section sheeted fiberglass scab adds additional strength leads interesting wing construction techniquethe composite wing build highly stressed center section conventionally add less-stressed outer wing panels using foam technique particularly attractive Uiant Scale subjects flat rectangular plan view wing middles other wing plans using conventional riband-spar construction outboard landing gear offers several advantages hardwood bearers retracts easier locate pressure hnes pushrods activation wont need pick little round bits foam out wing provide scale wheel wells multiengined models conventional construction just outboard engines facilitates mounting along throttle control runs maln upper lower wing spars extended wingtips slots cut foam wing ends monolithic wing can constructed Adding strip carbon fiber the spars will icing cake can pry JeeprM out mud such wing several interesting important Special Interest Uroups SIUs AIVIA belong two IMAA International Miniature Aircraft Association Ive since before began April 1980 13th member sign up other group found kindred spirits NASA National Association Scale Aeromodelers Johnny-comelately organization #577 Im glad Ijoined cutrent president Bob Underwood Scale competitor classic sense including several visits Scale Internats member US Scale team Cliff Tacie another longtime Scale expert editor Replica NASA newsletter included membership Cliffs bimonthly efforts well worth reading NASA membership also includes copy Scale Data Source List truly inspired publication kept up date May 1998 83 Former full-scale P-51 pilot Gary Sparks Tucson AZ Midwest AT-6 Power Giant VS 120 Another Gary Sparks modela Midwest 202 aerobatic monoplane Bob Holmans Brian Taylor-designed Spitfire Late version seems fascinated VS 120s power model British fighter has pointy rudder four-bladed prop 11 I4i lid 1 .I i [1 ntiques Militory Civilian Helicopters Soilpions hove worlds largest airauft documentation collection 7000 different full color photo studies 1903-1997 35000 3-view line drowings 1998/Guide 200 pages Catalog flY Canada/Mexico 510 00 14 OI$8 IOverseas $1500 Bob Bankas Scale Model Research 1 Yukon Avenue a Mesa CA 92626 714 979-8058 http Ilwww imt net/ms/scole html INTEWIwVADWE&LUWEWIWN&EWIWEWaWI&WiVAUWWiWJ SSS SANYO RC-2000 CELLS$550 Ea SANYO RC-2000 CELLS MATCHED$600 Ea SANYO RC-1700 CELLS new$400 Ea SANYO RC-1700 CELLS MATCHED$450 Ea SANYO N1400 SCR CELLS$350 Ea SANYO N1000 SCR CELLS$350 Ea SANYO N700AACELLS$150 Ea SANYO N500 AR CELLS$350 Ea SANYO KR600 AE CELLS$250 Ea SANYO N800 AR CELLS$350 Ea SANYO N350 AA CELLS$250 Ea SANYO 600 AACELLS$150 Ea 4 CELL 270AA RECEIVER PACK$1000 Ea 5 CELL 1000 AE RECEIVER PACK$1800 Ea CONNECTORS RED & BLACK$150 Pr WIRE SHRINK BARS AND BRAID ALSO AVAIL4BLE Claude McCullough Its worth yearly $10 dues NASAs prime missions standardize Scale contest judging progress being made fulfilling admirable task want join contact Cathy Burnstine NASA Secretary/Treasurer 303 Finch St Sandusky OH 44870 youre contest-oriented dont forget 1998 AMA Scale National Championships held July 10-12 AMA National Flying Site Muncie IN RC Control Line events scheduled include RC Team Scale unofficial fun Son gun Gary Sparks Tucson AZ let know about NASAs April 4-5 model meet about month too late would like have given Tucson folks plug springtime weather usually great fly-ins Gary kind enough enclose some nifty model photographs noted Mustangs P-5 ls flew bit faster ones piloted Gary informed models cross-country-cruised 230/240 mph checked Mustang buddies agreed memory must failing Great airplane though Bob Holnians latest offering true Giant esoteric Spitfires Plans British expert Brian Taylor 83inch version Mark VII IX prototype model came out 145 pounds Bob prepared fumish detailed fiberglass cowl molded canopy aluminum spinner model laser-cut parts complete package Mr Holman stocks meticulous three-views elliptical-winged bird plans $45 plus $5 postage handling shipped rolled Its pretty airplane sure hope April showers bring out May flowers new Giant Scale model Much luck test flights Wrigley Way Milpitas California 95035 Voice/Fax 408 946-4751 408 WINGS-SI LOOK no further fully molded sailplane needs RnR offer selection high performance sailplanes will address specific requirements F3BThermal Duration Slope Cross Country Mark Allen designed World Championship F3B EAGLE now being produced RnR its new lower price RnR sailplane enjoys design construction enhancements 1997 RnRs composite molded technology provides unique blend strength weight optimization Noticeable results found through increased durability torsional stability stiffness incorporated wing fuselage tail section also offer selection parts joiner systems scratch builders out catch latest visuals specifications competitive pricing RnRs sailplanes contact RnR RnR skys limit. 84 Model Aviation zi
Edition: Model Aviation - 1998/05
Page Numbers: 83, 84
Edition: Model Aviation - 1998/05
Page Numbers: 83, 84
RADIO CONTROL GIANTS E9 11111Uj j m I1 I1 [1 d- r eUi 1 F.UPi5 BEAUTIFUL warm spring day Radio Control RC flying field Only couple models tracing filmy exhaust trails blue sky airplanes heads runway low pass scream engine grabs everyones attention model dives earthward happens As flier pulls model sharply out dive theres ominous craaakand wing folds up middle fuselage now bereft lift spears runway debris scattered everywhere Balsa plywood propeller spinner engine radio create long swath destruction Above half-wing flutters slowly earth Too Us gravity consensus modelers witnessed crash modeling population have possibly witnessed sort ugly end RC flight Too Us isnt whole story poorly braced wing center section might have waiting high-U pull-out maybe plywood dihedral braces werent sufficiently epoxied wing spars fiberglass scab over center section wing wasnt fully adhered wings planking Assuming earlier precise joining wing halves maybe things came apart because extended vibration after flights fuelsoaked joints may have decided enough enough Anyhow wing failed its most-stressed locationthe center section type wing construction probably sensitive center-section failure two foam sections butt-joined either plywood dihedral braces Most type wings strength relies fiberglass cloth wrapping center section fiberglass tape fixed place bath CyA cyanoacrylate glue resin epoxy Properly done fiberglassing wings center section holds things together pretty well its very important glue penetrates wing sheeting Wings conventional rib-and-spar construction usually much stronger particularly theyre sheeted balsa thin plywood foam-core wings usually dihedral braces can fully adhered spars before wing center section sheeted fiberglass scab adds additional strength leads interesting wing construction techniquethe composite wing build highly stressed center section conventionally add less-stressed outer wing panels using foam technique particularly attractive Uiant Scale subjects flat rectangular plan view wing middles other wing plans using conventional riband-spar construction outboard landing gear offers several advantages hardwood bearers retracts easier locate pressure hnes pushrods activation wont need pick little round bits foam out wing provide scale wheel wells multiengined models conventional construction just outboard engines facilitates mounting along throttle control runs maln upper lower wing spars extended wingtips slots cut foam wing ends monolithic wing can constructed Adding strip carbon fiber the spars will icing cake can pry JeeprM out mud such wing several interesting important Special Interest Uroups SIUs AIVIA belong two IMAA International Miniature Aircraft Association Ive since before began April 1980 13th member sign up other group found kindred spirits NASA National Association Scale Aeromodelers Johnny-comelately organization #577 Im glad Ijoined cutrent president Bob Underwood Scale competitor classic sense including several visits Scale Internats member US Scale team Cliff Tacie another longtime Scale expert editor Replica NASA newsletter included membership Cliffs bimonthly efforts well worth reading NASA membership also includes copy Scale Data Source List truly inspired publication kept up date May 1998 83 Former full-scale P-51 pilot Gary Sparks Tucson AZ Midwest AT-6 Power Giant VS 120 Another Gary Sparks modela Midwest 202 aerobatic monoplane Bob Holmans Brian Taylor-designed Spitfire Late version seems fascinated VS 120s power model British fighter has pointy rudder four-bladed prop 11 I4i lid 1 .I i [1 ntiques Militory Civilian Helicopters Soilpions hove worlds largest airauft documentation collection 7000 different full color photo studies 1903-1997 35000 3-view line drowings 1998/Guide 200 pages Catalog flY Canada/Mexico 510 00 14 OI$8 IOverseas $1500 Bob Bankas Scale Model Research 1 Yukon Avenue a Mesa CA 92626 714 979-8058 http Ilwww imt net/ms/scole html INTEWIwVADWE&LUWEWIWN&EWIWEWaWI&WiVAUWWiWJ SSS SANYO RC-2000 CELLS$550 Ea SANYO RC-2000 CELLS MATCHED$600 Ea SANYO RC-1700 CELLS new$400 Ea SANYO RC-1700 CELLS MATCHED$450 Ea SANYO N1400 SCR CELLS$350 Ea SANYO N1000 SCR CELLS$350 Ea SANYO N700AACELLS$150 Ea SANYO N500 AR CELLS$350 Ea SANYO KR600 AE CELLS$250 Ea SANYO N800 AR CELLS$350 Ea SANYO N350 AA CELLS$250 Ea SANYO 600 AACELLS$150 Ea 4 CELL 270AA RECEIVER PACK$1000 Ea 5 CELL 1000 AE RECEIVER PACK$1800 Ea CONNECTORS RED & BLACK$150 Pr WIRE SHRINK BARS AND BRAID ALSO AVAIL4BLE Claude McCullough Its worth yearly $10 dues NASAs prime missions standardize Scale contest judging progress being made fulfilling admirable task want join contact Cathy Burnstine NASA Secretary/Treasurer 303 Finch St Sandusky OH 44870 youre contest-oriented dont forget 1998 AMA Scale National Championships held July 10-12 AMA National Flying Site Muncie IN RC Control Line events scheduled include RC Team Scale unofficial fun Son gun Gary Sparks Tucson AZ let know about NASAs April 4-5 model meet about month too late would like have given Tucson folks plug springtime weather usually great fly-ins Gary kind enough enclose some nifty model photographs noted Mustangs P-5 ls flew bit faster ones piloted Gary informed models cross-country-cruised 230/240 mph checked Mustang buddies agreed memory must failing Great airplane though Bob Holnians latest offering true Giant esoteric Spitfires Plans British expert Brian Taylor 83inch version Mark VII IX prototype model came out 145 pounds Bob prepared fumish detailed fiberglass cowl molded canopy aluminum spinner model laser-cut parts complete package Mr Holman stocks meticulous three-views elliptical-winged bird plans $45 plus $5 postage handling shipped rolled Its pretty airplane sure hope April showers bring out May flowers new Giant Scale model Much luck test flights Wrigley Way Milpitas California 95035 Voice/Fax 408 946-4751 408 WINGS-SI LOOK no further fully molded sailplane needs RnR offer selection high performance sailplanes will address specific requirements F3BThermal Duration Slope Cross Country Mark Allen designed World Championship F3B EAGLE now being produced RnR its new lower price RnR sailplane enjoys design construction enhancements 1997 RnRs composite molded technology provides unique blend strength weight optimization Noticeable results found through increased durability torsional stability stiffness incorporated wing fuselage tail section also offer selection parts joiner systems scratch builders out catch latest visuals specifications competitive pricing RnRs sailplanes contact RnR RnR skys limit. 84 Model Aviation zi
