FREE FLIGHT INDOOR RY JENKINS Ontario Canada wrote mildly chastise promoting Radio Controlled Indoor Flying well-taken point RC interests may well overwhelm available Indoor sites exclusion true Indoor flying troubling possibility reporting activity surely would have little impact site problem no doubt Indoor RC ilk compatible other Indoor types However Indoor Electric FF CO2 FF Scale other Indoor Scale models except perhaps Lo-Cal P-24 models equally incompatible what call true Indoor models As fliers duration models covered microfilm plastic Jim Clem pay pro rata share site rental get average 50 minutes flying time return 70 mile round trip real love FID good year pay travel 1000 miles direction gain access site worthy class havent built new FlD years care count As Jim Clem says Sooner later agony exceeds ecstasy Jim lives about six blocks PIano TX YMCA flies part membership several times month course requires advance planning since air-conditioning computercontrolled someplace Oklahoma live closer Richardson TX YMCA building has humidity problem mandates constant operation air handlers Fortunately membership also good Plano YMCA can fly Jim often make time Jim can probably still get access local church gym $50 pop half length small gym realistically take turns flying feel sure cost per minute flight time higher Bedford Euless Ft Worth suburbs sites currently available twice month bottom line seems Indoor fliers can have much exclusive site access can afford Are reasons modeling seek corporate sponsors understanding correct type access enjoyed Indoor fliers Japan Ornithopters Anyone Omithopter Society formerly Omithopters Society Box 376 Arkville NY 12406 circulating Membership Directory Survey information see Web site wwwcatskillnetlevolutionlflight survey can completed line July1999 111 Bob Wilders Indoor RC Electric motor thrust test stand see text set up test Photos Bud Ten fly Multipurpose fixture allows wide variety motors Force measurement used electronic scale see text mounted quickly Power applied motor using test clips measure motor static thrust directly ounces Kudos Nicklet Nick Leonard Junior Team member 1998 Indoor World Champs did very well competition Slanic site Nicklet strongly acknowledges support Nick Sr help advice leading adult fliers honor dedication willingness tackle master skills compete FID lam proud know him look forward watching him compete future Lakehurst Flying total 113 flying opportunities Lakehurst Hangar #1 East Coast fliers have almost unlimited opportunity fly Indoor models types confirmed sanctioned events include long weekends Memorial Day weekend May 29-31 Independence Day weekend July 2-5 Labor Day weekend Sept 3-5 excellent site hosted friendly helpful folks havent awhile some after-dark lighting available help clean up pack models after underestimate long need clear site Specific Impulse After hours Indoor Catapult flying Lubbock Nats speculated about specific impulse energy released catapult rubber havent much chance practice since have Cat glider flutters unless energy release slow get much better control longer piece thin rubber Under high ceilings highest energy release may important shape curve provided glider can handle rubber output Recent club newsletters have discussions about what rubber best may have seen discussions havent seen factor mentioned difference between Indoor outdoor catapults has six-inch limit overall length handle outdoor catapult limited nine-inch loop inch rubber Indoor catapult can use length size rubber expectation Cat gliders will benefit long thin loop single strand use 02 x 043 rubber conclusion about high-impulse launching Please dont let zany hot-doggin have seen Bees per forming fool thinking its just hot rod Most guys simply cant resist flying way because Bee lets get away things no other plane would survive So please forgive fly little too low too close show oft little excite ment flying Bee brings out Walter Mitty pilot Beginners build confidence tlying Bee because survives hard landings mistakes novice flyer makes nov ice can get lots flight time because hes still got plane Unlike trainer Bee never becomes boring can transtorm Bee mild wild simply changing throw its oversized control sur faces Bees hold interest attention pilots ot skill simply nothing Ilys quite like Bee us Lazy B Fun-Fly August 15 & 16 CLANCY AVIATION Sacramento CA P041 25 MESA AZ 85211-41 25 Call info Tel 480-649-1534 Fax480-649-9040 Hours Mon thru Fri 10AM -4 PM MST 112 Model Aviation J r J L# C HOBBIES FUN-BAT ARFx4\ Incredibly simple no frills affordability 37 span Fun-Bat gets combatflying fast Open box find 10 pieces put together including symmetrical foamboard wing carbon fiber boom Great club combat plane Call specialONLY deals 6 pack combos w/Magnum XL 15$24 major credit cards accepted Order 800-309-8314 41 2-795-9344 41 2-798-9857 J & C HOBBIES OX 17068 SBURGH PA 15235 Forgiven gleaned newsletters stretch limit 9x- lOx Tan II makes less suitable rubber has lower stretch limit unless perhaps arms four feet long Turbulator Bob Klipp 53 tall says can stretch rubber hooked glider about 48 inches Covering UHU Stick condensed Win govers Walibangers newsletter Norwich flying Aces Have covered using Tom Hallman UHU method yet covering method uses UHU brand glue stick rubbing alcohol Coat structure UHU stick allow dry dry color turns purple clear still may bit tacky helps position tissue tackiness holds place Apply rubbing alcohol through tissue alcohol softens glue can work out wrinkles Apply alcohol needed Preshrink tissue light structures otherwise shrink tissue after UHU has cured method allowed complete covering jobs record time beautiful results also allowed uncover half wing repair recover record time works great round fuselages because smaller sections can done quickly edges between pieces tissue seem disappear Other advantages include no dope fumes can work almost anywhere Both ingredients inexpensive glue stick should last models rubbing alcohol very inexpensive Cleanup breeze UHU also works great applying registration numbers insignia Apply UHU tissue allow dry Cut numbers tissue Put numbers right place apply rubbing alcohol Dont worry look bit wrinkly begin alcohol will dry shrink nicely 35cm Records Some time back Tony DAlessandro wrote ask what current records 35cm Indoor Stick Since isnt AMA class hadnt heard unofficial times Cat IV told him guess 2715 flight could considered unofficial record very good time 138-inch-wingspan model Tony scaled Bob Randolphs FlD 35cm except did wing bracing differently used overall length 1875 inches Because concern over buckling compression ribs eliminated cabane bracing leading edge trailing edge directly respective posts may allow wing twist torque increase works well model weighs 014 oz 3997glighter MiniStick required Tony sent photocopy photo model climbing out wing twist clearly shown anyone wants information THE BEST IN SCALE PLANS ACCESSORIES & LASER CUT PARTS 94 Fiesler Starch $3500 Laser cut parts available Fiesler Storch94$35Ot Fiesler Storch72$3000 Lysander81$3500 ME 16361$3000 DH Chipmunk665$3000 Macchi 20261$3000 Before lOOF61$4000 Before 109668$4000 Hurricane MK 172$4000 Spitfire MK la69$4000 Spitfire MK IX63$4500 Typhoon lB72$4000 DH Mosquito PRXV 161$4500 P-47D76$4500 P-SiC69$2500 F4u-182$4500 Harvard94$4500 Hellcat64$3000 Hellcat80$3500 indicates laser parts available BUn HULIVIAN rLAN 1UbUA 741 AIN MNAIiUINO CA 92402 BHPLANS@AOLCOM Best scale calalog $500 pp Cards Ok UK German catalogs available Please add $500 postage July1999 113 Leader Small Airfoil Technology MASIERSCREW An extensive range propeller sizes offering superior performance best prices Super-efficient airfoil sections create greater thrust lower rpm s resulting quieter operation Available 8 distinctive styles flying needs both glass-filled nylon beechwood maple ill 55x45$1299x45678 95x6$169 6x3 6x35 6x412910x456789199 7x345613911x45678910219 8x3456714911x75219 12x6 12x8$28915x8 15x10$659 13x6 13x839916x6 16x8759 14x6 14x8559 7x47x5$14911x6 11x7 11x8$229 8x4 8x5 8x6159 12x6 12x8299 9x5 9x6 9x7179 13x6 13x8 13x10429 10x510x610x710x8.209 14x814x10 599 12x6 12x8$400 13x6 13x8500 14x6 14x8600 16x6 16x8 16x10.. 1050 18x818x10$1600 20x820x101800 22x8 22x10 22x12. 2100 ~I7 16x6 16x8 16x10.. $79520x6 20x8 20x10. $1525 18x6 18x8 18x101325 9x4568$21016x6810$950 10x567824018x68101500 11x6781027020x68101700 12x68934522x810121925 13x681042024x810122100 14x6810555 10x6 10x8$415 11x711x9425 12x8 12x10445 13x8 13x10465 10x7$795 11x711x8895 12x6995 13x81095 Windsor Propeller Co Inc 3219 Monier Circle Rancho Cordova CA 95742 Ph 9166318385 Fax 9166318386 send SASE Ill copy sketches weight chart Good job building flying Torque Meter Data Newcomer oldtimer really need torque meter hope get modelsespecially low-ceiling sites data below generated long time ago Charlie Sotich length data shown length rear anchor point torque meter pointer torque value shown amount torque required twist wire 3600 twist might overstress wire Dia 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 Length 0188 0236 0283 0330 0377 0424 0471 0518 0565 0613 0660 0707 0754 0801 0848 0895 0942 0990 1070 1084 1131 1178 1225 1272 1319 1367 1414 1461 1508 Torque 016 031 054 086 129 183 251 355 454 552 690 848 1029 1235 1466 1724 20 11 2528 2676 3058 3474 3927 4417 4947 55 17 6150 6786 7487 8235 Wilder Science previous columns have commented Bob Wilders test measurements allowed him select efficient combination motor prop batteries Indoor RC Duration model key elements thrust measurement various combinations photo shows new test rig complete power supply set up test Another photo shows motor prop used four-hour flight another photo shows thrust sensor electronic scale test rig consists precision parallogram precision bearings motor running propeller pulls up end beam other end beam presses down electronic scale Before applying power beam balanced using sliding weight small force exerted scale nulled zero motor running scale measures static thrust directly ounces Clever Model Aviation
Edition: Model Aviation - 1999/07
Page Numbers: 111, 112, 113, 114
FREE FLIGHT INDOOR RY JENKINS Ontario Canada wrote mildly chastise promoting Radio Controlled Indoor Flying well-taken point RC interests may well overwhelm available Indoor sites exclusion true Indoor flying troubling possibility reporting activity surely would have little impact site problem no doubt Indoor RC ilk compatible other Indoor types However Indoor Electric FF CO2 FF Scale other Indoor Scale models except perhaps Lo-Cal P-24 models equally incompatible what call true Indoor models As fliers duration models covered microfilm plastic Jim Clem pay pro rata share site rental get average 50 minutes flying time return 70 mile round trip real love FID good year pay travel 1000 miles direction gain access site worthy class havent built new FlD years care count As Jim Clem says Sooner later agony exceeds ecstasy Jim lives about six blocks PIano TX YMCA flies part membership several times month course requires advance planning since air-conditioning computercontrolled someplace Oklahoma live closer Richardson TX YMCA building has humidity problem mandates constant operation air handlers Fortunately membership also good Plano YMCA can fly Jim often make time Jim can probably still get access local church gym $50 pop half length small gym realistically take turns flying feel sure cost per minute flight time higher Bedford Euless Ft Worth suburbs sites currently available twice month bottom line seems Indoor fliers can have much exclusive site access can afford Are reasons modeling seek corporate sponsors understanding correct type access enjoyed Indoor fliers Japan Ornithopters Anyone Omithopter Society formerly Omithopters Society Box 376 Arkville NY 12406 circulating Membership Directory Survey information see Web site wwwcatskillnetlevolutionlflight survey can completed line July1999 111 Bob Wilders Indoor RC Electric motor thrust test stand see text set up test Photos Bud Ten fly Multipurpose fixture allows wide variety motors Force measurement used electronic scale see text mounted quickly Power applied motor using test clips measure motor static thrust directly ounces Kudos Nicklet Nick Leonard Junior Team member 1998 Indoor World Champs did very well competition Slanic site Nicklet strongly acknowledges support Nick Sr help advice leading adult fliers honor dedication willingness tackle master skills compete FID lam proud know him look forward watching him compete future Lakehurst Flying total 113 flying opportunities Lakehurst Hangar #1 East Coast fliers have almost unlimited opportunity fly Indoor models types confirmed sanctioned events include long weekends Memorial Day weekend May 29-31 Independence Day weekend July 2-5 Labor Day weekend Sept 3-5 excellent site hosted friendly helpful folks havent awhile some after-dark lighting available help clean up pack models after underestimate long need clear site Specific Impulse After hours Indoor Catapult flying Lubbock Nats speculated about specific impulse energy released catapult rubber havent much chance practice since have Cat glider flutters unless energy release slow get much better control longer piece thin rubber Under high ceilings highest energy release may important shape curve provided glider can handle rubber output Recent club newsletters have discussions about what rubber best may have seen discussions havent seen factor mentioned difference between Indoor outdoor catapults has six-inch limit overall length handle outdoor catapult limited nine-inch loop inch rubber Indoor catapult can use length size rubber expectation Cat gliders will benefit long thin loop single strand use 02 x 043 rubber conclusion about high-impulse launching Please dont let zany hot-doggin have seen Bees per forming fool thinking its just hot rod Most guys simply cant resist flying way because Bee lets get away things no other plane would survive So please forgive fly little too low too close show oft little excite ment flying Bee brings out Walter Mitty pilot Beginners build confidence tlying Bee because survives hard landings mistakes novice flyer makes nov ice can get lots flight time because hes still got plane Unlike trainer Bee never becomes boring can transtorm Bee mild wild simply changing throw its oversized control sur faces Bees hold interest attention pilots ot skill simply nothing Ilys quite like Bee us Lazy B Fun-Fly August 15 & 16 CLANCY AVIATION Sacramento CA P041 25 MESA AZ 85211-41 25 Call info Tel 480-649-1534 Fax480-649-9040 Hours Mon thru Fri 10AM -4 PM MST 112 Model Aviation J r J L# C HOBBIES FUN-BAT ARFx4\ Incredibly simple no frills affordability 37 span Fun-Bat gets combatflying fast Open box find 10 pieces put together including symmetrical foamboard wing carbon fiber boom Great club combat plane Call specialONLY deals 6 pack combos w/Magnum XL 15$24 major credit cards accepted Order 800-309-8314 41 2-795-9344 41 2-798-9857 J & C HOBBIES OX 17068 SBURGH PA 15235 Forgiven gleaned newsletters stretch limit 9x- lOx Tan II makes less suitable rubber has lower stretch limit unless perhaps arms four feet long Turbulator Bob Klipp 53 tall says can stretch rubber hooked glider about 48 inches Covering UHU Stick condensed Win govers Walibangers newsletter Norwich flying Aces Have covered using Tom Hallman UHU method yet covering method uses UHU brand glue stick rubbing alcohol Coat structure UHU stick allow dry dry color turns purple clear still may bit tacky helps position tissue tackiness holds place Apply rubbing alcohol through tissue alcohol softens glue can work out wrinkles Apply alcohol needed Preshrink tissue light structures otherwise shrink tissue after UHU has cured method allowed complete covering jobs record time beautiful results also allowed uncover half wing repair recover record time works great round fuselages because smaller sections can done quickly edges between pieces tissue seem disappear Other advantages include no dope fumes can work almost anywhere Both ingredients inexpensive glue stick should last models rubbing alcohol very inexpensive Cleanup breeze UHU also works great applying registration numbers insignia Apply UHU tissue allow dry Cut numbers tissue Put numbers right place apply rubbing alcohol Dont worry look bit wrinkly begin alcohol will dry shrink nicely 35cm Records Some time back Tony DAlessandro wrote ask what current records 35cm Indoor Stick Since isnt AMA class hadnt heard unofficial times Cat IV told him guess 2715 flight could considered unofficial record very good time 138-inch-wingspan model Tony scaled Bob Randolphs FlD 35cm except did wing bracing differently used overall length 1875 inches Because concern over buckling compression ribs eliminated cabane bracing leading edge trailing edge directly respective posts may allow wing twist torque increase works well model weighs 014 oz 3997glighter MiniStick required Tony sent photocopy photo model climbing out wing twist clearly shown anyone wants information THE BEST IN SCALE PLANS ACCESSORIES & LASER CUT PARTS 94 Fiesler Starch $3500 Laser cut parts available Fiesler Storch94$35Ot Fiesler Storch72$3000 Lysander81$3500 ME 16361$3000 DH Chipmunk665$3000 Macchi 20261$3000 Before lOOF61$4000 Before 109668$4000 Hurricane MK 172$4000 Spitfire MK la69$4000 Spitfire MK IX63$4500 Typhoon lB72$4000 DH Mosquito PRXV 161$4500 P-47D76$4500 P-SiC69$2500 F4u-182$4500 Harvard94$4500 Hellcat64$3000 Hellcat80$3500 indicates laser parts available BUn HULIVIAN rLAN 1UbUA 741 AIN MNAIiUINO CA 92402 BHPLANS@AOLCOM Best scale calalog $500 pp Cards Ok UK German catalogs available Please add $500 postage July1999 113 Leader Small Airfoil Technology MASIERSCREW An extensive range propeller sizes offering superior performance best prices Super-efficient airfoil sections create greater thrust lower rpm s resulting quieter operation Available 8 distinctive styles flying needs both glass-filled nylon beechwood maple ill 55x45$1299x45678 95x6$169 6x3 6x35 6x412910x456789199 7x345613911x45678910219 8x3456714911x75219 12x6 12x8$28915x8 15x10$659 13x6 13x839916x6 16x8759 14x6 14x8559 7x47x5$14911x6 11x7 11x8$229 8x4 8x5 8x6159 12x6 12x8299 9x5 9x6 9x7179 13x6 13x8 13x10429 10x510x610x710x8.209 14x814x10 599 12x6 12x8$400 13x6 13x8500 14x6 14x8600 16x6 16x8 16x10.. 1050 18x818x10$1600 20x820x101800 22x8 22x10 22x12. 2100 ~I7 16x6 16x8 16x10.. $79520x6 20x8 20x10. $1525 18x6 18x8 18x101325 9x4568$21016x6810$950 10x567824018x68101500 11x6781027020x68101700 12x68934522x810121925 13x681042024x810122100 14x6810555 10x6 10x8$415 11x711x9425 12x8 12x10445 13x8 13x10465 10x7$795 11x711x8895 12x6995 13x81095 Windsor Propeller Co Inc 3219 Monier Circle Rancho Cordova CA 95742 Ph 9166318385 Fax 9166318386 send SASE Ill copy sketches weight chart Good job building flying Torque Meter Data Newcomer oldtimer really need torque meter hope get modelsespecially low-ceiling sites data below generated long time ago Charlie Sotich length data shown length rear anchor point torque meter pointer torque value shown amount torque required twist wire 3600 twist might overstress wire Dia 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 Length 0188 0236 0283 0330 0377 0424 0471 0518 0565 0613 0660 0707 0754 0801 0848 0895 0942 0990 1070 1084 1131 1178 1225 1272 1319 1367 1414 1461 1508 Torque 016 031 054 086 129 183 251 355 454 552 690 848 1029 1235 1466 1724 20 11 2528 2676 3058 3474 3927 4417 4947 55 17 6150 6786 7487 8235 Wilder Science previous columns have commented Bob Wilders test measurements allowed him select efficient combination motor prop batteries Indoor RC Duration model key elements thrust measurement various combinations photo shows new test rig complete power supply set up test Another photo shows motor prop used four-hour flight another photo shows thrust sensor electronic scale test rig consists precision parallogram precision bearings motor running propeller pulls up end beam other end beam presses down electronic scale Before applying power beam balanced using sliding weight small force exerted scale nulled zero motor running scale measures static thrust directly ounces Clever Model Aviation
Edition: Model Aviation - 1999/07
Page Numbers: 111, 112, 113, 114
FREE FLIGHT INDOOR RY JENKINS Ontario Canada wrote mildly chastise promoting Radio Controlled Indoor Flying well-taken point RC interests may well overwhelm available Indoor sites exclusion true Indoor flying troubling possibility reporting activity surely would have little impact site problem no doubt Indoor RC ilk compatible other Indoor types However Indoor Electric FF CO2 FF Scale other Indoor Scale models except perhaps Lo-Cal P-24 models equally incompatible what call true Indoor models As fliers duration models covered microfilm plastic Jim Clem pay pro rata share site rental get average 50 minutes flying time return 70 mile round trip real love FID good year pay travel 1000 miles direction gain access site worthy class havent built new FlD years care count As Jim Clem says Sooner later agony exceeds ecstasy Jim lives about six blocks PIano TX YMCA flies part membership several times month course requires advance planning since air-conditioning computercontrolled someplace Oklahoma live closer Richardson TX YMCA building has humidity problem mandates constant operation air handlers Fortunately membership also good Plano YMCA can fly Jim often make time Jim can probably still get access local church gym $50 pop half length small gym realistically take turns flying feel sure cost per minute flight time higher Bedford Euless Ft Worth suburbs sites currently available twice month bottom line seems Indoor fliers can have much exclusive site access can afford Are reasons modeling seek corporate sponsors understanding correct type access enjoyed Indoor fliers Japan Ornithopters Anyone Omithopter Society formerly Omithopters Society Box 376 Arkville NY 12406 circulating Membership Directory Survey information see Web site wwwcatskillnetlevolutionlflight survey can completed line July1999 111 Bob Wilders Indoor RC Electric motor thrust test stand see text set up test Photos Bud Ten fly Multipurpose fixture allows wide variety motors Force measurement used electronic scale see text mounted quickly Power applied motor using test clips measure motor static thrust directly ounces Kudos Nicklet Nick Leonard Junior Team member 1998 Indoor World Champs did very well competition Slanic site Nicklet strongly acknowledges support Nick Sr help advice leading adult fliers honor dedication willingness tackle master skills compete FID lam proud know him look forward watching him compete future Lakehurst Flying total 113 flying opportunities Lakehurst Hangar #1 East Coast fliers have almost unlimited opportunity fly Indoor models types confirmed sanctioned events include long weekends Memorial Day weekend May 29-31 Independence Day weekend July 2-5 Labor Day weekend Sept 3-5 excellent site hosted friendly helpful folks havent awhile some after-dark lighting available help clean up pack models after underestimate long need clear site Specific Impulse After hours Indoor Catapult flying Lubbock Nats speculated about specific impulse energy released catapult rubber havent much chance practice since have Cat glider flutters unless energy release slow get much better control longer piece thin rubber Under high ceilings highest energy release may important shape curve provided glider can handle rubber output Recent club newsletters have discussions about what rubber best may have seen discussions havent seen factor mentioned difference between Indoor outdoor catapults has six-inch limit overall length handle outdoor catapult limited nine-inch loop inch rubber Indoor catapult can use length size rubber expectation Cat gliders will benefit long thin loop single strand use 02 x 043 rubber conclusion about high-impulse launching Please dont let zany hot-doggin have seen Bees per forming fool thinking its just hot rod Most guys simply cant resist flying way because Bee lets get away things no other plane would survive So please forgive fly little too low too close show oft little excite ment flying Bee brings out Walter Mitty pilot Beginners build confidence tlying Bee because survives hard landings mistakes novice flyer makes nov ice can get lots flight time because hes still got plane Unlike trainer Bee never becomes boring can transtorm Bee mild wild simply changing throw its oversized control sur faces Bees hold interest attention pilots ot skill simply nothing Ilys quite like Bee us Lazy B Fun-Fly August 15 & 16 CLANCY AVIATION Sacramento CA P041 25 MESA AZ 85211-41 25 Call info Tel 480-649-1534 Fax480-649-9040 Hours Mon thru Fri 10AM -4 PM MST 112 Model Aviation J r J L# C HOBBIES FUN-BAT ARFx4\ Incredibly simple no frills affordability 37 span Fun-Bat gets combatflying fast Open box find 10 pieces put together including symmetrical foamboard wing carbon fiber boom Great club combat plane Call specialONLY deals 6 pack combos w/Magnum XL 15$24 major credit cards accepted Order 800-309-8314 41 2-795-9344 41 2-798-9857 J & C HOBBIES OX 17068 SBURGH PA 15235 Forgiven gleaned newsletters stretch limit 9x- lOx Tan II makes less suitable rubber has lower stretch limit unless perhaps arms four feet long Turbulator Bob Klipp 53 tall says can stretch rubber hooked glider about 48 inches Covering UHU Stick condensed Win govers Walibangers newsletter Norwich flying Aces Have covered using Tom Hallman UHU method yet covering method uses UHU brand glue stick rubbing alcohol Coat structure UHU stick allow dry dry color turns purple clear still may bit tacky helps position tissue tackiness holds place Apply rubbing alcohol through tissue alcohol softens glue can work out wrinkles Apply alcohol needed Preshrink tissue light structures otherwise shrink tissue after UHU has cured method allowed complete covering jobs record time beautiful results also allowed uncover half wing repair recover record time works great round fuselages because smaller sections can done quickly edges between pieces tissue seem disappear Other advantages include no dope fumes can work almost anywhere Both ingredients inexpensive glue stick should last models rubbing alcohol very inexpensive Cleanup breeze UHU also works great applying registration numbers insignia Apply UHU tissue allow dry Cut numbers tissue Put numbers right place apply rubbing alcohol Dont worry look bit wrinkly begin alcohol will dry shrink nicely 35cm Records Some time back Tony DAlessandro wrote ask what current records 35cm Indoor Stick Since isnt AMA class hadnt heard unofficial times Cat IV told him guess 2715 flight could considered unofficial record very good time 138-inch-wingspan model Tony scaled Bob Randolphs FlD 35cm except did wing bracing differently used overall length 1875 inches Because concern over buckling compression ribs eliminated cabane bracing leading edge trailing edge directly respective posts may allow wing twist torque increase works well model weighs 014 oz 3997glighter MiniStick required Tony sent photocopy photo model climbing out wing twist clearly shown anyone wants information THE BEST IN SCALE PLANS ACCESSORIES & LASER CUT PARTS 94 Fiesler Starch $3500 Laser cut parts available Fiesler Storch94$35Ot Fiesler Storch72$3000 Lysander81$3500 ME 16361$3000 DH Chipmunk665$3000 Macchi 20261$3000 Before lOOF61$4000 Before 109668$4000 Hurricane MK 172$4000 Spitfire MK la69$4000 Spitfire MK IX63$4500 Typhoon lB72$4000 DH Mosquito PRXV 161$4500 P-47D76$4500 P-SiC69$2500 F4u-182$4500 Harvard94$4500 Hellcat64$3000 Hellcat80$3500 indicates laser parts available BUn HULIVIAN rLAN 1UbUA 741 AIN MNAIiUINO CA 92402 BHPLANS@AOLCOM Best scale calalog $500 pp Cards Ok UK German catalogs available Please add $500 postage July1999 113 Leader Small Airfoil Technology MASIERSCREW An extensive range propeller sizes offering superior performance best prices Super-efficient airfoil sections create greater thrust lower rpm s resulting quieter operation Available 8 distinctive styles flying needs both glass-filled nylon beechwood maple ill 55x45$1299x45678 95x6$169 6x3 6x35 6x412910x456789199 7x345613911x45678910219 8x3456714911x75219 12x6 12x8$28915x8 15x10$659 13x6 13x839916x6 16x8759 14x6 14x8559 7x47x5$14911x6 11x7 11x8$229 8x4 8x5 8x6159 12x6 12x8299 9x5 9x6 9x7179 13x6 13x8 13x10429 10x510x610x710x8.209 14x814x10 599 12x6 12x8$400 13x6 13x8500 14x6 14x8600 16x6 16x8 16x10.. 1050 18x818x10$1600 20x820x101800 22x8 22x10 22x12. 2100 ~I7 16x6 16x8 16x10.. $79520x6 20x8 20x10. $1525 18x6 18x8 18x101325 9x4568$21016x6810$950 10x567824018x68101500 11x6781027020x68101700 12x68934522x810121925 13x681042024x810122100 14x6810555 10x6 10x8$415 11x711x9425 12x8 12x10445 13x8 13x10465 10x7$795 11x711x8895 12x6995 13x81095 Windsor Propeller Co Inc 3219 Monier Circle Rancho Cordova CA 95742 Ph 9166318385 Fax 9166318386 send SASE Ill copy sketches weight chart Good job building flying Torque Meter Data Newcomer oldtimer really need torque meter hope get modelsespecially low-ceiling sites data below generated long time ago Charlie Sotich length data shown length rear anchor point torque meter pointer torque value shown amount torque required twist wire 3600 twist might overstress wire Dia 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 Length 0188 0236 0283 0330 0377 0424 0471 0518 0565 0613 0660 0707 0754 0801 0848 0895 0942 0990 1070 1084 1131 1178 1225 1272 1319 1367 1414 1461 1508 Torque 016 031 054 086 129 183 251 355 454 552 690 848 1029 1235 1466 1724 20 11 2528 2676 3058 3474 3927 4417 4947 55 17 6150 6786 7487 8235 Wilder Science previous columns have commented Bob Wilders test measurements allowed him select efficient combination motor prop batteries Indoor RC Duration model key elements thrust measurement various combinations photo shows new test rig complete power supply set up test Another photo shows motor prop used four-hour flight another photo shows thrust sensor electronic scale test rig consists precision parallogram precision bearings motor running propeller pulls up end beam other end beam presses down electronic scale Before applying power beam balanced using sliding weight small force exerted scale nulled zero motor running scale measures static thrust directly ounces Clever Model Aviation
Edition: Model Aviation - 1999/07
Page Numbers: 111, 112, 113, 114
FREE FLIGHT INDOOR RY JENKINS Ontario Canada wrote mildly chastise promoting Radio Controlled Indoor Flying well-taken point RC interests may well overwhelm available Indoor sites exclusion true Indoor flying troubling possibility reporting activity surely would have little impact site problem no doubt Indoor RC ilk compatible other Indoor types However Indoor Electric FF CO2 FF Scale other Indoor Scale models except perhaps Lo-Cal P-24 models equally incompatible what call true Indoor models As fliers duration models covered microfilm plastic Jim Clem pay pro rata share site rental get average 50 minutes flying time return 70 mile round trip real love FID good year pay travel 1000 miles direction gain access site worthy class havent built new FlD years care count As Jim Clem says Sooner later agony exceeds ecstasy Jim lives about six blocks PIano TX YMCA flies part membership several times month course requires advance planning since air-conditioning computercontrolled someplace Oklahoma live closer Richardson TX YMCA building has humidity problem mandates constant operation air handlers Fortunately membership also good Plano YMCA can fly Jim often make time Jim can probably still get access local church gym $50 pop half length small gym realistically take turns flying feel sure cost per minute flight time higher Bedford Euless Ft Worth suburbs sites currently available twice month bottom line seems Indoor fliers can have much exclusive site access can afford Are reasons modeling seek corporate sponsors understanding correct type access enjoyed Indoor fliers Japan Ornithopters Anyone Omithopter Society formerly Omithopters Society Box 376 Arkville NY 12406 circulating Membership Directory Survey information see Web site wwwcatskillnetlevolutionlflight survey can completed line July1999 111 Bob Wilders Indoor RC Electric motor thrust test stand see text set up test Photos Bud Ten fly Multipurpose fixture allows wide variety motors Force measurement used electronic scale see text mounted quickly Power applied motor using test clips measure motor static thrust directly ounces Kudos Nicklet Nick Leonard Junior Team member 1998 Indoor World Champs did very well competition Slanic site Nicklet strongly acknowledges support Nick Sr help advice leading adult fliers honor dedication willingness tackle master skills compete FID lam proud know him look forward watching him compete future Lakehurst Flying total 113 flying opportunities Lakehurst Hangar #1 East Coast fliers have almost unlimited opportunity fly Indoor models types confirmed sanctioned events include long weekends Memorial Day weekend May 29-31 Independence Day weekend July 2-5 Labor Day weekend Sept 3-5 excellent site hosted friendly helpful folks havent awhile some after-dark lighting available help clean up pack models after underestimate long need clear site Specific Impulse After hours Indoor Catapult flying Lubbock Nats speculated about specific impulse energy released catapult rubber havent much chance practice since have Cat glider flutters unless energy release slow get much better control longer piece thin rubber Under high ceilings highest energy release may important shape curve provided glider can handle rubber output Recent club newsletters have discussions about what rubber best may have seen discussions havent seen factor mentioned difference between Indoor outdoor catapults has six-inch limit overall length handle outdoor catapult limited nine-inch loop inch rubber Indoor catapult can use length size rubber expectation Cat gliders will benefit long thin loop single strand use 02 x 043 rubber conclusion about high-impulse launching Please dont let zany hot-doggin have seen Bees per forming fool thinking its just hot rod Most guys simply cant resist flying way because Bee lets get away things no other plane would survive So please forgive fly little too low too close show oft little excite ment flying Bee brings out Walter Mitty pilot Beginners build confidence tlying Bee because survives hard landings mistakes novice flyer makes nov ice can get lots flight time because hes still got plane Unlike trainer Bee never becomes boring can transtorm Bee mild wild simply changing throw its oversized control sur faces Bees hold interest attention pilots ot skill simply nothing Ilys quite like Bee us Lazy B Fun-Fly August 15 & 16 CLANCY AVIATION Sacramento CA P041 25 MESA AZ 85211-41 25 Call info Tel 480-649-1534 Fax480-649-9040 Hours Mon thru Fri 10AM -4 PM MST 112 Model Aviation J r J L# C HOBBIES FUN-BAT ARFx4\ Incredibly simple no frills affordability 37 span Fun-Bat gets combatflying fast Open box find 10 pieces put together including symmetrical foamboard wing carbon fiber boom Great club combat plane Call specialONLY deals 6 pack combos w/Magnum XL 15$24 major credit cards accepted Order 800-309-8314 41 2-795-9344 41 2-798-9857 J & C HOBBIES OX 17068 SBURGH PA 15235 Forgiven gleaned newsletters stretch limit 9x- lOx Tan II makes less suitable rubber has lower stretch limit unless perhaps arms four feet long Turbulator Bob Klipp 53 tall says can stretch rubber hooked glider about 48 inches Covering UHU Stick condensed Win govers Walibangers newsletter Norwich flying Aces Have covered using Tom Hallman UHU method yet covering method uses UHU brand glue stick rubbing alcohol Coat structure UHU stick allow dry dry color turns purple clear still may bit tacky helps position tissue tackiness holds place Apply rubbing alcohol through tissue alcohol softens glue can work out wrinkles Apply alcohol needed Preshrink tissue light structures otherwise shrink tissue after UHU has cured method allowed complete covering jobs record time beautiful results also allowed uncover half wing repair recover record time works great round fuselages because smaller sections can done quickly edges between pieces tissue seem disappear Other advantages include no dope fumes can work almost anywhere Both ingredients inexpensive glue stick should last models rubbing alcohol very inexpensive Cleanup breeze UHU also works great applying registration numbers insignia Apply UHU tissue allow dry Cut numbers tissue Put numbers right place apply rubbing alcohol Dont worry look bit wrinkly begin alcohol will dry shrink nicely 35cm Records Some time back Tony DAlessandro wrote ask what current records 35cm Indoor Stick Since isnt AMA class hadnt heard unofficial times Cat IV told him guess 2715 flight could considered unofficial record very good time 138-inch-wingspan model Tony scaled Bob Randolphs FlD 35cm except did wing bracing differently used overall length 1875 inches Because concern over buckling compression ribs eliminated cabane bracing leading edge trailing edge directly respective posts may allow wing twist torque increase works well model weighs 014 oz 3997glighter MiniStick required Tony sent photocopy photo model climbing out wing twist clearly shown anyone wants information THE BEST IN SCALE PLANS ACCESSORIES & LASER CUT PARTS 94 Fiesler Starch $3500 Laser cut parts available Fiesler Storch94$35Ot Fiesler Storch72$3000 Lysander81$3500 ME 16361$3000 DH Chipmunk665$3000 Macchi 20261$3000 Before lOOF61$4000 Before 109668$4000 Hurricane MK 172$4000 Spitfire MK la69$4000 Spitfire MK IX63$4500 Typhoon lB72$4000 DH Mosquito PRXV 161$4500 P-47D76$4500 P-SiC69$2500 F4u-182$4500 Harvard94$4500 Hellcat64$3000 Hellcat80$3500 indicates laser parts available BUn HULIVIAN rLAN 1UbUA 741 AIN MNAIiUINO CA 92402 BHPLANS@AOLCOM Best scale calalog $500 pp Cards Ok UK German catalogs available Please add $500 postage July1999 113 Leader Small Airfoil Technology MASIERSCREW An extensive range propeller sizes offering superior performance best prices Super-efficient airfoil sections create greater thrust lower rpm s resulting quieter operation Available 8 distinctive styles flying needs both glass-filled nylon beechwood maple ill 55x45$1299x45678 95x6$169 6x3 6x35 6x412910x456789199 7x345613911x45678910219 8x3456714911x75219 12x6 12x8$28915x8 15x10$659 13x6 13x839916x6 16x8759 14x6 14x8559 7x47x5$14911x6 11x7 11x8$229 8x4 8x5 8x6159 12x6 12x8299 9x5 9x6 9x7179 13x6 13x8 13x10429 10x510x610x710x8.209 14x814x10 599 12x6 12x8$400 13x6 13x8500 14x6 14x8600 16x6 16x8 16x10.. 1050 18x818x10$1600 20x820x101800 22x8 22x10 22x12. 2100 ~I7 16x6 16x8 16x10.. $79520x6 20x8 20x10. $1525 18x6 18x8 18x101325 9x4568$21016x6810$950 10x567824018x68101500 11x6781027020x68101700 12x68934522x810121925 13x681042024x810122100 14x6810555 10x6 10x8$415 11x711x9425 12x8 12x10445 13x8 13x10465 10x7$795 11x711x8895 12x6995 13x81095 Windsor Propeller Co Inc 3219 Monier Circle Rancho Cordova CA 95742 Ph 9166318385 Fax 9166318386 send SASE Ill copy sketches weight chart Good job building flying Torque Meter Data Newcomer oldtimer really need torque meter hope get modelsespecially low-ceiling sites data below generated long time ago Charlie Sotich length data shown length rear anchor point torque meter pointer torque value shown amount torque required twist wire 3600 twist might overstress wire Dia 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 Length 0188 0236 0283 0330 0377 0424 0471 0518 0565 0613 0660 0707 0754 0801 0848 0895 0942 0990 1070 1084 1131 1178 1225 1272 1319 1367 1414 1461 1508 Torque 016 031 054 086 129 183 251 355 454 552 690 848 1029 1235 1466 1724 20 11 2528 2676 3058 3474 3927 4417 4947 55 17 6150 6786 7487 8235 Wilder Science previous columns have commented Bob Wilders test measurements allowed him select efficient combination motor prop batteries Indoor RC Duration model key elements thrust measurement various combinations photo shows new test rig complete power supply set up test Another photo shows motor prop used four-hour flight another photo shows thrust sensor electronic scale test rig consists precision parallogram precision bearings motor running propeller pulls up end beam other end beam presses down electronic scale Before applying power beam balanced using sliding weight small force exerted scale nulled zero motor running scale measures static thrust directly ounces Clever Model Aviation