DB Mathews Art Technology reflecting evolution designing building flying model aircraft difficult separate continuous changes sizes types models built development new technical devices recent column mentioned throughout aviation history development power plants has lead development new full-scale aircraft same technology followed suitable aircraft designs phenomena applies model aircraft interrelation between art technology aeromodeling doubt take trip back time through old model magazines used extremely difficult tow model glider straight line would invariably wander off side other nothing could done release towline simple device called auto rudder came along Fundamentally washer line pulled off hook tow ring slid off allowed rudder move away straight ahead during tow turn position glide simplistic fault usually effective Old-timers might recall frustration attempting tow Jasco Thermic 50 Berkeley Sinbad straight oddball golf club thing Sinbad Now very complex beautifully-machined devices available commercially use towline gliders provide auto rudder also produce ability tow circles launch model zoom bunt line released case technology altering art Consider evolution dethermalizing Free Flight models Back no dethennalizer models got thermals just floated away fliers madly pursuing across hill dale Later used short length chemically treated cotton fuse lit eventually burned through rubber band allowing stabilizer pop up about 450 stalled model returned earth fuse has replaced clockwork timers tiny units utilize resistance viscous fluid Technology radically altered art Free Flight wouldnt dare allow Free Flight models climb high dethermalizers Think about dramatic reduction size weight Radio Control equipment As servo receivers get smaller smaller new exciting models being designed around large mailbox thing photos 1966 Kraft proportional servo friend John Riggs still has complete Kraft proportional four-channel system absolutely huge size compared contemporary standard systems smallish its day Johns system cost him months pay bought Kraft servo weighs two ounces front Kraft new FMA S-90 servo weighs 32 ounces yet has 19 ounces power However 5-90 smallest small adds up two S-90 servos FMA Tetra receiver 110 mAh battery pack complete system weighs little old servo Smaller models have become practical larger ones can go diet Smallish models sluggish best because 78 Model Aviation bottom Kraft mailbox servo circa 1966 two ounces FMA S-90 submicro servo 32 ounce postage stamp Douglas Knoths Alexandria VA 1112-scale Messerschmitt Bf 109G speckled camouflage Gus Morf plan Jim Kiehis Largo FL Bearcat done up Reno racer Rare Bear weight can now come alive 020 smaller electric RC now within technical reach of usnot just gifted few Small Scale introduction micro submicro equipment has followed development some exciting fun new areas Radio Control Such things backyard park RC cropping up Ill have some observations soon month Ill look 1/t2-scale fighters designs motivated provisional /t 2-scale Combat event source sorts fun sport models adding landing gear would seem logical also small light enough hand-launch belly-land successfully landing gear would also make possible fly off simple grass strips t/12-scale fighters relatively small size resultant low materials cost coupled almost limitless selection color-andmarkings great flying characteristics low weights possible create models ooze fun development directly result technology can imagine shoehoming three big servos something size Most single-engine 1/12-scale warbirds span 36- 40 inches come 2-2 pounds fly moderately fast beyond speed thought 15- 20-cubic-inch ones round cowls engines Kits range all-molded foam units fully built-up balsa structures Several suppliers have construction drawings little warbirds some drawings unusual prototypes Gus Morfis has 36-inch Vultee Vanguard Macchi M-202 drawingssubjects often seen flying fields size find concept exciting contact suppliers end column information catalogs company have firsthand knowledge Gus Morfis Plans first-class Should interests run flying /i 2-scale models crepe-paper streamers attached chasing someone elses model Radio Control Combat Association Special Interest Group within AMA structure Web site wwwscalecombatcom Several magazine columnists writing monthly subject technology side hobby has once agaln added art fun addition Isnt technology grand Out common courtesy corresponding columnist supplier include #10 stamped self-addressed envelope 4Sources Air-Kill Products balsa foam kits 14 Shady Lake Ct Sacramento CA 95834 916 425-9933 Check Six Plans plans 29686 Birch Cir Mechanicsville MD 20659 Gus Morfis Plans 37 different plans 4709 Green Meadows Ave Torrance CA 90505 310 378-5679 Hobby Hangar complete kits 1862 Petersburg Rd Hebron KY 41048 606 334-4431 DBW Models wide range 1063 W 125 5 Blackfoot ID 83221 208 684-9365 JDB Aero Tec foam balsa kits Almost Ready-to-Flys 2202 Beck Ln Lafayette IN 47905 765 474-1738 Collins Scientific short kits 7300 NW Expy Oklahoma City OK 73132 405 721-4502 Quad Model Designs balsa-and-plywood kits 2510 119th Ave Ct W Milan IL 61264 Ziggs Originals foam wings fuselages 105 Swanton Rd Madison WI 53714 608 249-4480 ULTRA PRECISION THE REALISTIC MOTION COMPANY WITH TRIED AND PROVEN SOLUTIONS RETRACT CONTROL VALVES valves feature infinitely adjustable independent speed controls work standard servo UP1 Adjustable speed control valve retract use air both up down movements $2895 UP2 Retract door control valve Doors close gear both up down $7465 UP3 Retract door control valve Doors stay open gear down $7465 UP4 Secondary door control valve use UP2 for doors need stay open gears down $4495 UP5 Spring air control valve Independent up down speed control systems air up spring down $2895 UP6 Variable pressure brake control valve miniature pressure regulator give smooth braking control proportional servo movement $4995 DOOR CYLINDERS metal construction NEW SIZENEW SIZE 5/16 dia x 3/4 inch stroke$1900 5/16 die x 1 inch stroke $1900 5/16 dia x liA inch stroke $2000 5/16 dia x 1% inch stroke $2100 7/16 dia x 1 inch stroke $2200 7/16 dia x 1% inch stroke $2300 7/16 dia x l inch stroke $2400 7/16 dia x 2 inch stroke $2500 CANOPY OPENING CYLINDERS 7/16 dia x 3Z inch stroke $2895 7/16 dia x 4 inch stroke $3000 TEE FITTINGS metal$5 95 DOW CORNING 55 LUBRICANT$300 POLYURETHANE AIRLINE TUBING 2 x 5 ft orange grey$595 CUSTOM RETRACTS AND CYLINDERS Please contact us quotation Ultra Precision Technical Services Ltd 1244 Honeysuckle Crescent Oakville Ontario CANADAL6H 2S8 Telephone/Fax 905 842-1703 prices US funds Shipping $500 worldwide Dealer inquiries welcome E-mailUltraPrecisiout4SympaticoCa Competition propellers intermediate advanced sport flyer welt competition community Advanced designs using modern computational methods materials Over 300 pitch diameters available ranging slow-flyer electric High performance Giant Scale Unlimited Racers complete line three four blade props being designed tested Top-level Competition pilots prior market entry Visit APC Prop Website detailed information product design current product availability send SASE detailed brochure Landing Products5 1222 Harter Ave Woodland CA 95776 Contact local hobby dealer first dont have what need order direct from OS Landing Products ph 530 661-0399 convenient web site Overnight delivery available props slock Hours 6am PST July1999 79 TThe No 1 Choice Competition Modelers Worldwide
Edition: Model Aviation - 1999/07
Page Numbers: 78, 79
Edition: Model Aviation - 1999/07
Page Numbers: 78, 79
DB Mathews Art Technology reflecting evolution designing building flying model aircraft difficult separate continuous changes sizes types models built development new technical devices recent column mentioned throughout aviation history development power plants has lead development new full-scale aircraft same technology followed suitable aircraft designs phenomena applies model aircraft interrelation between art technology aeromodeling doubt take trip back time through old model magazines used extremely difficult tow model glider straight line would invariably wander off side other nothing could done release towline simple device called auto rudder came along Fundamentally washer line pulled off hook tow ring slid off allowed rudder move away straight ahead during tow turn position glide simplistic fault usually effective Old-timers might recall frustration attempting tow Jasco Thermic 50 Berkeley Sinbad straight oddball golf club thing Sinbad Now very complex beautifully-machined devices available commercially use towline gliders provide auto rudder also produce ability tow circles launch model zoom bunt line released case technology altering art Consider evolution dethermalizing Free Flight models Back no dethennalizer models got thermals just floated away fliers madly pursuing across hill dale Later used short length chemically treated cotton fuse lit eventually burned through rubber band allowing stabilizer pop up about 450 stalled model returned earth fuse has replaced clockwork timers tiny units utilize resistance viscous fluid Technology radically altered art Free Flight wouldnt dare allow Free Flight models climb high dethermalizers Think about dramatic reduction size weight Radio Control equipment As servo receivers get smaller smaller new exciting models being designed around large mailbox thing photos 1966 Kraft proportional servo friend John Riggs still has complete Kraft proportional four-channel system absolutely huge size compared contemporary standard systems smallish its day Johns system cost him months pay bought Kraft servo weighs two ounces front Kraft new FMA S-90 servo weighs 32 ounces yet has 19 ounces power However 5-90 smallest small adds up two S-90 servos FMA Tetra receiver 110 mAh battery pack complete system weighs little old servo Smaller models have become practical larger ones can go diet Smallish models sluggish best because 78 Model Aviation bottom Kraft mailbox servo circa 1966 two ounces FMA S-90 submicro servo 32 ounce postage stamp Douglas Knoths Alexandria VA 1112-scale Messerschmitt Bf 109G speckled camouflage Gus Morf plan Jim Kiehis Largo FL Bearcat done up Reno racer Rare Bear weight can now come alive 020 smaller electric RC now within technical reach of usnot just gifted few Small Scale introduction micro submicro equipment has followed development some exciting fun new areas Radio Control Such things backyard park RC cropping up Ill have some observations soon month Ill look 1/t2-scale fighters designs motivated provisional /t 2-scale Combat event source sorts fun sport models adding landing gear would seem logical also small light enough hand-launch belly-land successfully landing gear would also make possible fly off simple grass strips t/12-scale fighters relatively small size resultant low materials cost coupled almost limitless selection color-andmarkings great flying characteristics low weights possible create models ooze fun development directly result technology can imagine shoehoming three big servos something size Most single-engine 1/12-scale warbirds span 36- 40 inches come 2-2 pounds fly moderately fast beyond speed thought 15- 20-cubic-inch ones round cowls engines Kits range all-molded foam units fully built-up balsa structures Several suppliers have construction drawings little warbirds some drawings unusual prototypes Gus Morfis has 36-inch Vultee Vanguard Macchi M-202 drawingssubjects often seen flying fields size find concept exciting contact suppliers end column information catalogs company have firsthand knowledge Gus Morfis Plans first-class Should interests run flying /i 2-scale models crepe-paper streamers attached chasing someone elses model Radio Control Combat Association Special Interest Group within AMA structure Web site wwwscalecombatcom Several magazine columnists writing monthly subject technology side hobby has once agaln added art fun addition Isnt technology grand Out common courtesy corresponding columnist supplier include #10 stamped self-addressed envelope 4Sources Air-Kill Products balsa foam kits 14 Shady Lake Ct Sacramento CA 95834 916 425-9933 Check Six Plans plans 29686 Birch Cir Mechanicsville MD 20659 Gus Morfis Plans 37 different plans 4709 Green Meadows Ave Torrance CA 90505 310 378-5679 Hobby Hangar complete kits 1862 Petersburg Rd Hebron KY 41048 606 334-4431 DBW Models wide range 1063 W 125 5 Blackfoot ID 83221 208 684-9365 JDB Aero Tec foam balsa kits Almost Ready-to-Flys 2202 Beck Ln Lafayette IN 47905 765 474-1738 Collins Scientific short kits 7300 NW Expy Oklahoma City OK 73132 405 721-4502 Quad Model Designs balsa-and-plywood kits 2510 119th Ave Ct W Milan IL 61264 Ziggs Originals foam wings fuselages 105 Swanton Rd Madison WI 53714 608 249-4480 ULTRA PRECISION THE REALISTIC MOTION COMPANY WITH TRIED AND PROVEN SOLUTIONS RETRACT CONTROL VALVES valves feature infinitely adjustable independent speed controls work standard servo UP1 Adjustable speed control valve retract use air both up down movements $2895 UP2 Retract door control valve Doors close gear both up down $7465 UP3 Retract door control valve Doors stay open gear down $7465 UP4 Secondary door control valve use UP2 for doors need stay open gears down $4495 UP5 Spring air control valve Independent up down speed control systems air up spring down $2895 UP6 Variable pressure brake control valve miniature pressure regulator give smooth braking control proportional servo movement $4995 DOOR CYLINDERS metal construction NEW SIZENEW SIZE 5/16 dia x 3/4 inch stroke$1900 5/16 die x 1 inch stroke $1900 5/16 dia x liA inch stroke $2000 5/16 dia x 1% inch stroke $2100 7/16 dia x 1 inch stroke $2200 7/16 dia x 1% inch stroke $2300 7/16 dia x l inch stroke $2400 7/16 dia x 2 inch stroke $2500 CANOPY OPENING CYLINDERS 7/16 dia x 3Z inch stroke $2895 7/16 dia x 4 inch stroke $3000 TEE FITTINGS metal$5 95 DOW CORNING 55 LUBRICANT$300 POLYURETHANE AIRLINE TUBING 2 x 5 ft orange grey$595 CUSTOM RETRACTS AND CYLINDERS Please contact us quotation Ultra Precision Technical Services Ltd 1244 Honeysuckle Crescent Oakville Ontario CANADAL6H 2S8 Telephone/Fax 905 842-1703 prices US funds Shipping $500 worldwide Dealer inquiries welcome E-mailUltraPrecisiout4SympaticoCa Competition propellers intermediate advanced sport flyer welt competition community Advanced designs using modern computational methods materials Over 300 pitch diameters available ranging slow-flyer electric High performance Giant Scale Unlimited Racers complete line three four blade props being designed tested Top-level Competition pilots prior market entry Visit APC Prop Website detailed information product design current product availability send SASE detailed brochure Landing Products5 1222 Harter Ave Woodland CA 95776 Contact local hobby dealer first dont have what need order direct from OS Landing Products ph 530 661-0399 convenient web site Overnight delivery available props slock Hours 6am PST July1999 79 TThe No 1 Choice Competition Modelers Worldwide
