M Aidrici TRAILING EDGE During past year has single week did hear someone interested inor getting involved withsome sort Old-Timer modeling Regardless reasons have drawn back trailing-edge-oftechnology modeling pervasive attitude felt us Winning just sake winning main attraction majorityeven once competed almost frantic levelthe demands obligations present lifestyle prevent winning being important part interest high-tech world Schnuerle ported engines exotic electronics RTF ready-to-fly ARF almost-ready-to-fly models world would such large contingent choose go back history build fly designs 40 years old AMA Nationals sporting 90-plus events competition winning trophy has secondary importance Whether reliving early years building design always admired experiencing activity read about recreation has prime motivation would suggest taken mean both re-create refresh has said Old-Timers dying breed Because some us show various amounts gray hair such conclusion might drawn However since younger people get involved let hasten amend say Old-Timer building flying far dead early tenets Old-Timer modeling advance state art has provided newcomers opportunity rediscover some old building techniques well operate engine spark ignition Now aspect flying Old-Timers have never seen addressed following particular way racing events soon say race winning becomes factor closely related dollars spent Old-Timer events attempt duplicate modeling way means using basic type engine fuel prevalent during era being recreated free flight engine run allowed 25 seconds ROG rise-off-ground 20 seconds HL hand-launchjust late pre-WW II times Also during period over 90% modelers used fuel consisting basically 70-weight oil gasoline early postwar years spark engine gas n oil used great majority US concentrated developing spark ignition engine English leaned compression ignition diesel engine Greatly hampered war direct attacks like Battle Britain industry UK remained behind us some time Certainly diesel engine seriously considered free flight before 1950 country fact engine era has effect OTFF flown todaythe Elfin 249cc 15 cu diesel Because weight saved eliminating ignition system coupled high output Elfin very difficult compete equitable basis using spark-ignition-powered model Having love affair diesels 25 years own repros Elfin built three different countries also have two A-class SAM-legal models Comet Mercury 288 sq powered very good Morrill 19 ignition engine Megow Ranger 347 sq Dunham Argo Elfin up front Both models fly very well real pleasure early morning buoyant air 58 Model Aviation 2 Tarrytown San Antonio TX 78233 Comet Mercury top Morrill Hornet 19 just cant compete Elfin 15 diesel-powered Megow Ranger miniature microswitch modifies KSB fuel cutoff timer shut off ignition system Arm canted allow slide up red actuator button Pinch-oft pin removed arm stop made scrap stock Dick Bell linked four Testors McCoy 35s form 14-cu-in four-cylinder inline Just imagine sound Drone diesel two-piece adjustable compression contrapiston Note nonstandard needle valve Aiming toward Simple sport speed event jet speed man Charlie Davis testing inexpensive piped engines Ranger will close five minutes Mercury about half time difference Ranger weighs exactly its required weight Mercury about 31/2 oZ moreor ignition system weight Couple diesels ability swing prop flight time gain easily apparent Obviously winning prerequisite us continue build class OTFF powered true spark-ignition engines Perhaps enough us care about retaining event truly flown will promote spark-ignition-only event same vein thought very few ever ran engines alcohol fuel pressurized fuel systems old days Just smell old gas n oil fuel brings back fond memories well-spent youth aided no small way making lot fine people today Old-Time Vintage stunt two basic events third hanging commonly referred Nostalgia Old-Time Old-Time Ignition stunt events Although stunt community afflicted great degree win-at-all-costs attitude does need solid set universal rules means including unknown unrecognized designs Only about 20% models flown during 1947-1950 era considered legal unrecognized designs include placed won national competition 1949 Netzeband design far ahead its time Fortunately engine controversial problem stunt wealth fine engines available can made run properly dont outset main reason great outpouring seems attraction returning simpler times Build way werebalsa silkspan easy paint jobs No high-tech needed little carbon fiber reinforce spars-or glassed nose sectionsjust makes model durable otherwise no changes design construction desirable number newsletters receive have included comments about ways eliminate fuel foaming seems someone discovered couple squirts compounds sold treat upholstery tires etc would virtually prevent foam forming fuel tank Most such products contain form liquid silicone breaks down surface tension thereby hampers fuels ability form bubbles have no way knowing ingredients make up products really arent very compatible fuel Another way eliminate fuel foaming use wetting agent Basically wetting agent meant make water wetter Such agents used diverse industries ranging farming way photography farming wetting agent saves amount insecticide needed cover acre because wets surfaces leaves better Photographers use product far easier obtain small quantities Almost photography supply shop carries product called photo flow solution used treating prints Because available concentrated form two drops needed entire gallon fuel fuel business some years ago two ounces added 156 gallons antifoam agent number readers have written say Fourmost Products produces one-way check valve stop fuel backflowing engine via pressure line Others have written ask about availability engine shutoff timers ignition systems knowledge no producing such item time Most modelers mount microswitch directly timer case photos should give good idea done After notching out face plate routine tack microswitch place tiny drop CyA cyanoacrylate glue After am certain everything set up properly line slow thick CyA applied given shot kicker set up quickly variations possible got Bruce Chandler 10 years ago years us used synthetic lubricants engines have assumed Continued page 141 learned Jim Walker swing Howard Bueschel U-Reely hand prepares put show Trenton NJ old Veco Brave March 1993 59 Jim Silhavy designed Magician stunt trainer years ago Johnson 33S powers replica built Mike Ditrich Erie Pa Tom Wardens Minado includes seven shades purple Such models needed next Vintage Stunt Champs Two rare MCCA Mccoy 60 engines Shaving typical 1940s speed fliers seen left other engine has no file marks PROGRAM SELECTION DISKETTE SELECTION PRICES LISA & CANADA PRICES OVERSEAS SENOPROGRAMiCCA CO CCC #65C 574 SENDPROGRAM2CCA CO CC IC $55CS64 SEND BOTH PROGRAMS CCA 59 CC IC $123 plane down runway carried back pits instead taxiing back hat goes off Ken Robbins Helena Flying Tigers can boast identical concern safety little closer home recently fledgling endeavors fly helicopters led SAM field Desoto Mississippi annual Memphis Fall Helicopter FunFly Obviously curious learn about rotor heads safety practiced such events Contest Director Mike Fortune set tone during pilots briefing indicating no needed take unnecessary chances might result aircrafts demise Flight lines different flying times pilots class frequency control five-foot safety fences spectators order day Doing maintenance before arriving flying field helicopter must choppers rotor head things come apart poorly maintained quality what presented static flying events superb very impressed professionalism flying abilities well-maintained machines Mike Fortune X-Cell 60 Custom Dana Swah Kalt Baron Alpha 2 Michael Cusanelli modified Schulter 60 Scout first-class event safety lead end column month let mention concern passed Dave Elliot pattern flier Millington Tennessee Barnstormers Club After attending numerous pattern events Dave indicates frustration exists among some fliers using carbon-fiber props several have disintegrated air Dave handed remains several props inspection displayed symptoms identical problem prop subjected spinner-cone squeeze result trying fit highpitch prop shallow spinner opening As consequence spinner cut carbon fiber thereby ruining its reliability accident waiting happen fix open up slots spinner until large enough ensure spinner will touch prop after being secured spinner backplate Ive used Dremel tool sanding drum FIX IT YOURSELF use Save Money SaveTime As low $ 995 write CallSmithy Dept MA 1 -800-345-6342Lathe l 3023 t 2nd Street Ask operator MAThe Dalles DR 97050 open holes successfully aluminum plastic spinners final touch balance spinner utilizing several balancing systems available hobby shops Remember prop damaged way its safety has severely compromised worth risk damage yourself aircraft try using time simple rule follow doubt throw out Until next month have safe get cards letters pictures flowing roundlAldrich Continued page 59 resultant rust ferrous parts caused moisture residue left after fuel run out andlor some form nitric acid caused burning nitromethane pen pal Germany retired chemist tells polyglycol type lubes common use today create own acid burn just further ireball RIC Idle-Bar Glow Plugs Long Short$209 Only Also. Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $169 Swanson Associates PO Box 51 ne NJ 07470 March 1993 141 DESIGN YOUR OWN RC MODEL SAILPLANE AND ANALYZE ITS FLIGHT PERFORMANCE INTRODUCING TWO NEW EDUCATIONAL COMPUTER PROGRAMS PROGRAM 1 RC MODEL SAILPLANESDESIGN AND ANALYSIS RS STABILITY AND CONTROL PROGRAM 2 RC MODEL SAILPLANESSTEAOY STATE FLIGHT ANALYSIS COVERS PERFORMANCE ESTIMATION AND THE DETAILED ANALYSIS OF SOURCES OF DRAG KEY FEATURES aTHE USER MANUALS CONTAIN STEPBYSTEP INSTRUCTION FOR INPUTTING DESIGN DATA j BOTH PROGRAMS CONTAIN EXTENSIVE TUTORIAL BACKGROUND MATERIAL IN COLOR GRAPIIIC FORM EQUATIONS AND DATA USED IN THE PROGRAMS ARE CAREFULLY REFERENCED TO STANGARO TEXT BOOKS AND REFERENCE WORKS OF AERONAUTICAL I MANY EXAMPLES INCLUDED COMPUTER REQUIREMENTS 1DM PERSOtIAL COMPUTER MODEL XT OR AT OR PS2 OR COMPATIBLE COMPUTER RUNNING MSDOS 33 OR LATER b EGA OR VGA COLOR DISPLAY c 316 KB OF COMPUTER MEMORY d HARD DISK DRIVE WITH 35 MB OF AVAILABLE MEMORY AT LEAST ONE OF THE FOLLOWING DISKETTE DRIVES 35 IN 144 MB z B 35 IN 729 KB C 525 IN 12 MB PRINTER IS OPTIONAL PLEASE NOTE 366 KB DRIVES ARE NOT SUPPORTED TO ORDERi CHECK THE APPROPRIATE BOXES ATTACH YOUR CHECK OR MONEY ORDER WITH YOUR MAILING ADORESS MAIL TO STELLAR INSTRUMENT NORTHWEST INC 7 POWDERHORN DRIVE BEND 77019554 PRICES INCLUDE FUST CLASS POSTAGE 90 DAY LIMITED WARRANTY 6 SUNGLASSES $1195 $2S&H 100% VV Protection Shatterproof Excellent Optical Quality Tints Fit Over Prescriptions SKYS RO BOX 1000 MFRIES VA 22026 800-227-9318 GATOR TRANSMIITER CASE feather lite GLASS CLOTH 7 oz/sq yd weight close weave makes thi& giasa cloth easy filling extremely light finished weight Big 3 sq yd package detailed instructions$895 SOFT-N-SAFE MOUNTS U new type engine soft mount using special ribbed Iso-damp grommels Engine always safely retained Very effective vibration reduction dramatic decrease engine shake Available very light machined alum beam mount 60 2/strokes 120 4/strokes Also available slum plate rsdial mount 60 2/strokes SoftNSafe 120 beam mount complete.$2995 Soft-N-Safe 60 beam mount complete..S2495 *SoftNSafe 60 radial mount complete..$1295 Replacement grommets 120 mount .A/495 Replacement grommets 60 mount 5 RADIAL ISO-MOUNTS Conventional plate type mount using four Lord/type 60 Duro Iso-mounts Optimized lowest vibration transmission airframe reduced engine shake *60 Radial Iso-mount complete mount. 41495 Isomounta Pkg four $ 995 5/8 din x 1/2 long 8-32 female end 8-32 x 1/2 male other end 60 Duro rubber justification putting after-mn oil engine youre through daywhether use synthetics Once again use Rislone Marvel Mystery oil good too Both available local auto supply different engines coming shop get broad view trends porting arrangements currently production Some like SuperTigre producing both ringed piston/steel liner true ABC version several sizes Oddly ABC versions have relatively high tuned-pipe/muffler timing example G-45 ABC checked 1550 exhaust timing CL G-5 1 built same basic case 1400 does follow sizes however G-29 ABC G-34 ABC ringed piston G-34 ringed/steel cylinder checked out l55 exhaust timing range timing high engines obviously aimed tuned-pipe muffler RC market However propped let really turn high revs could also make fine free flight engines plan use G-34 ABC modified intake port timing test bed tuned-pipe/muffler setup profile Nobler idea find simple less expensive way gain power continuing suppress noise will cost us flying sites Also number engines now market have nickel-plated cylinders Commonly called ABC Aluminum piston Brass-Chromed cylinder latest editions really ABN criticism butmake no mistakechrome much harder nickel also much difficult plate chrome nickel thus expensive important point Since nickel softer would wise increase castor oil content fuel ABN engines understanding Paul Walker won both AMA Nationals World Stunt Championships using OS 46 VF ABN engine has two years over 2500 flights remarkable performance concerned great resurgence nostalgia stunt free flight starting put real drain engines apply era non-Schnuerle engines 35 above still production come Fox Merco used think nothing running 60% nitro fuel K&B Greenhead because new part near local hobby shop Today parts can found well advised use fuel least 25% castor oil maximum 25% nitro have also noted various nostalgia free flights sound like climbing 100 mph really doing about 40 less Perhaps because have become accustomed running K&B 325 Schnuerle 24000 8 x 4 prop put same thing 19 Greenhead because same size reality engines different oranges roses port timing engines era says luggersie meant develop maximum output much lower rpm range means can swing larger prop certainly will last longer run manner cases get just high higher Deciphering engines allowed NFFS Nostalgia class competition has become real chore sizes larger 049 might simplify things quite bit rule simply stated Any non-ballbearing engine baffle piston made after 1957 cutoff date Perhaps some manufacturers would go back making good dependable less expensive non-Schnuerle engines us have written sent SASEs know answer mall have added fax machine 210 656-2021 will answer after six rings hang up after five wont charged Im away lying TodaylMyors Continued page 61 left off 1992 AMA National Model Airplane Championships Nats schedule would have acceptable AMA rules made feasible electric-powered airplanes compete win events such 1/2A Free Flight Control Line Navy Carrier RC Pattern Indoor Duration etc AMAs contest boards have failed address issue handicaps Thats what wrong situation dont need competitions electric-powered airplanes need AMA competitions electricpowered airplanes can enter win Electric-powered flying fastestgrowing part hobby Electric fliers should get act together means Get compete Convince CDs know build Electric plane equal conventionally powered planes flying event youre interested fly against win DESCRIPTION OF SIG THE SOCIETY OF ANTIQUE MODELERS SAM Sometimes think United States losing its technological edge because too youth focus support obscene incomes available drugs pop music professional sports instead tackling technical challenges good engineer can work whole life earn less football player eams year endorsing alcohol tobacco something about economic system very warped Now Ive gotten last item off chest lets examine SIG internal combustion engines coexist electric motors 142 Model Aviation I high-density molded plastic Cuahions impact resists weather Strong double hinges durable latch Convoluted foam liner Great storing spare transmitters New low priee..$1495 Include $350/Item S&HFL Residents Add 6% Tax GATOR R/C PRODUCTS INC 3713 Pompano Dr Pensacola FL 32514 Phone 904 494-0203 904 494-0207
Edition: Model Aviation - 1993/03
Page Numbers: 58, 59, 141, 142
M Aidrici TRAILING EDGE During past year has single week did hear someone interested inor getting involved withsome sort Old-Timer modeling Regardless reasons have drawn back trailing-edge-oftechnology modeling pervasive attitude felt us Winning just sake winning main attraction majorityeven once competed almost frantic levelthe demands obligations present lifestyle prevent winning being important part interest high-tech world Schnuerle ported engines exotic electronics RTF ready-to-fly ARF almost-ready-to-fly models world would such large contingent choose go back history build fly designs 40 years old AMA Nationals sporting 90-plus events competition winning trophy has secondary importance Whether reliving early years building design always admired experiencing activity read about recreation has prime motivation would suggest taken mean both re-create refresh has said Old-Timers dying breed Because some us show various amounts gray hair such conclusion might drawn However since younger people get involved let hasten amend say Old-Timer building flying far dead early tenets Old-Timer modeling advance state art has provided newcomers opportunity rediscover some old building techniques well operate engine spark ignition Now aspect flying Old-Timers have never seen addressed following particular way racing events soon say race winning becomes factor closely related dollars spent Old-Timer events attempt duplicate modeling way means using basic type engine fuel prevalent during era being recreated free flight engine run allowed 25 seconds ROG rise-off-ground 20 seconds HL hand-launchjust late pre-WW II times Also during period over 90% modelers used fuel consisting basically 70-weight oil gasoline early postwar years spark engine gas n oil used great majority US concentrated developing spark ignition engine English leaned compression ignition diesel engine Greatly hampered war direct attacks like Battle Britain industry UK remained behind us some time Certainly diesel engine seriously considered free flight before 1950 country fact engine era has effect OTFF flown todaythe Elfin 249cc 15 cu diesel Because weight saved eliminating ignition system coupled high output Elfin very difficult compete equitable basis using spark-ignition-powered model Having love affair diesels 25 years own repros Elfin built three different countries also have two A-class SAM-legal models Comet Mercury 288 sq powered very good Morrill 19 ignition engine Megow Ranger 347 sq Dunham Argo Elfin up front Both models fly very well real pleasure early morning buoyant air 58 Model Aviation 2 Tarrytown San Antonio TX 78233 Comet Mercury top Morrill Hornet 19 just cant compete Elfin 15 diesel-powered Megow Ranger miniature microswitch modifies KSB fuel cutoff timer shut off ignition system Arm canted allow slide up red actuator button Pinch-oft pin removed arm stop made scrap stock Dick Bell linked four Testors McCoy 35s form 14-cu-in four-cylinder inline Just imagine sound Drone diesel two-piece adjustable compression contrapiston Note nonstandard needle valve Aiming toward Simple sport speed event jet speed man Charlie Davis testing inexpensive piped engines Ranger will close five minutes Mercury about half time difference Ranger weighs exactly its required weight Mercury about 31/2 oZ moreor ignition system weight Couple diesels ability swing prop flight time gain easily apparent Obviously winning prerequisite us continue build class OTFF powered true spark-ignition engines Perhaps enough us care about retaining event truly flown will promote spark-ignition-only event same vein thought very few ever ran engines alcohol fuel pressurized fuel systems old days Just smell old gas n oil fuel brings back fond memories well-spent youth aided no small way making lot fine people today Old-Time Vintage stunt two basic events third hanging commonly referred Nostalgia Old-Time Old-Time Ignition stunt events Although stunt community afflicted great degree win-at-all-costs attitude does need solid set universal rules means including unknown unrecognized designs Only about 20% models flown during 1947-1950 era considered legal unrecognized designs include placed won national competition 1949 Netzeband design far ahead its time Fortunately engine controversial problem stunt wealth fine engines available can made run properly dont outset main reason great outpouring seems attraction returning simpler times Build way werebalsa silkspan easy paint jobs No high-tech needed little carbon fiber reinforce spars-or glassed nose sectionsjust makes model durable otherwise no changes design construction desirable number newsletters receive have included comments about ways eliminate fuel foaming seems someone discovered couple squirts compounds sold treat upholstery tires etc would virtually prevent foam forming fuel tank Most such products contain form liquid silicone breaks down surface tension thereby hampers fuels ability form bubbles have no way knowing ingredients make up products really arent very compatible fuel Another way eliminate fuel foaming use wetting agent Basically wetting agent meant make water wetter Such agents used diverse industries ranging farming way photography farming wetting agent saves amount insecticide needed cover acre because wets surfaces leaves better Photographers use product far easier obtain small quantities Almost photography supply shop carries product called photo flow solution used treating prints Because available concentrated form two drops needed entire gallon fuel fuel business some years ago two ounces added 156 gallons antifoam agent number readers have written say Fourmost Products produces one-way check valve stop fuel backflowing engine via pressure line Others have written ask about availability engine shutoff timers ignition systems knowledge no producing such item time Most modelers mount microswitch directly timer case photos should give good idea done After notching out face plate routine tack microswitch place tiny drop CyA cyanoacrylate glue After am certain everything set up properly line slow thick CyA applied given shot kicker set up quickly variations possible got Bruce Chandler 10 years ago years us used synthetic lubricants engines have assumed Continued page 141 learned Jim Walker swing Howard Bueschel U-Reely hand prepares put show Trenton NJ old Veco Brave March 1993 59 Jim Silhavy designed Magician stunt trainer years ago Johnson 33S powers replica built Mike Ditrich Erie Pa Tom Wardens Minado includes seven shades purple Such models needed next Vintage Stunt Champs Two rare MCCA Mccoy 60 engines Shaving typical 1940s speed fliers seen left other engine has no file marks PROGRAM SELECTION DISKETTE SELECTION PRICES LISA & CANADA PRICES OVERSEAS SENOPROGRAMiCCA CO CCC #65C 574 SENDPROGRAM2CCA CO CC IC $55CS64 SEND BOTH PROGRAMS CCA 59 CC IC $123 plane down runway carried back pits instead taxiing back hat goes off Ken Robbins Helena Flying Tigers can boast identical concern safety little closer home recently fledgling endeavors fly helicopters led SAM field Desoto Mississippi annual Memphis Fall Helicopter FunFly Obviously curious learn about rotor heads safety practiced such events Contest Director Mike Fortune set tone during pilots briefing indicating no needed take unnecessary chances might result aircrafts demise Flight lines different flying times pilots class frequency control five-foot safety fences spectators order day Doing maintenance before arriving flying field helicopter must choppers rotor head things come apart poorly maintained quality what presented static flying events superb very impressed professionalism flying abilities well-maintained machines Mike Fortune X-Cell 60 Custom Dana Swah Kalt Baron Alpha 2 Michael Cusanelli modified Schulter 60 Scout first-class event safety lead end column month let mention concern passed Dave Elliot pattern flier Millington Tennessee Barnstormers Club After attending numerous pattern events Dave indicates frustration exists among some fliers using carbon-fiber props several have disintegrated air Dave handed remains several props inspection displayed symptoms identical problem prop subjected spinner-cone squeeze result trying fit highpitch prop shallow spinner opening As consequence spinner cut carbon fiber thereby ruining its reliability accident waiting happen fix open up slots spinner until large enough ensure spinner will touch prop after being secured spinner backplate Ive used Dremel tool sanding drum FIX IT YOURSELF use Save Money SaveTime As low $ 995 write CallSmithy Dept MA 1 -800-345-6342Lathe l 3023 t 2nd Street Ask operator MAThe Dalles DR 97050 open holes successfully aluminum plastic spinners final touch balance spinner utilizing several balancing systems available hobby shops Remember prop damaged way its safety has severely compromised worth risk damage yourself aircraft try using time simple rule follow doubt throw out Until next month have safe get cards letters pictures flowing roundlAldrich Continued page 59 resultant rust ferrous parts caused moisture residue left after fuel run out andlor some form nitric acid caused burning nitromethane pen pal Germany retired chemist tells polyglycol type lubes common use today create own acid burn just further ireball RIC Idle-Bar Glow Plugs Long Short$209 Only Also. Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $169 Swanson Associates PO Box 51 ne NJ 07470 March 1993 141 DESIGN YOUR OWN RC MODEL SAILPLANE AND ANALYZE ITS FLIGHT PERFORMANCE INTRODUCING TWO NEW EDUCATIONAL COMPUTER PROGRAMS PROGRAM 1 RC MODEL SAILPLANESDESIGN AND ANALYSIS RS STABILITY AND CONTROL PROGRAM 2 RC MODEL SAILPLANESSTEAOY STATE FLIGHT ANALYSIS COVERS PERFORMANCE ESTIMATION AND THE DETAILED ANALYSIS OF SOURCES OF DRAG KEY FEATURES aTHE USER MANUALS CONTAIN STEPBYSTEP INSTRUCTION FOR INPUTTING DESIGN DATA j BOTH PROGRAMS CONTAIN EXTENSIVE TUTORIAL BACKGROUND MATERIAL IN COLOR GRAPIIIC FORM EQUATIONS AND DATA USED IN THE PROGRAMS ARE CAREFULLY REFERENCED TO STANGARO TEXT BOOKS AND REFERENCE WORKS OF AERONAUTICAL I MANY EXAMPLES INCLUDED COMPUTER REQUIREMENTS 1DM PERSOtIAL COMPUTER MODEL XT OR AT OR PS2 OR COMPATIBLE COMPUTER RUNNING MSDOS 33 OR LATER b EGA OR VGA COLOR DISPLAY c 316 KB OF COMPUTER MEMORY d HARD DISK DRIVE WITH 35 MB OF AVAILABLE MEMORY AT LEAST ONE OF THE FOLLOWING DISKETTE DRIVES 35 IN 144 MB z B 35 IN 729 KB C 525 IN 12 MB PRINTER IS OPTIONAL PLEASE NOTE 366 KB DRIVES ARE NOT SUPPORTED TO ORDERi CHECK THE APPROPRIATE BOXES ATTACH YOUR CHECK OR MONEY ORDER WITH YOUR MAILING ADORESS MAIL TO STELLAR INSTRUMENT NORTHWEST INC 7 POWDERHORN DRIVE BEND 77019554 PRICES INCLUDE FUST CLASS POSTAGE 90 DAY LIMITED WARRANTY 6 SUNGLASSES $1195 $2S&H 100% VV Protection Shatterproof Excellent Optical Quality Tints Fit Over Prescriptions SKYS RO BOX 1000 MFRIES VA 22026 800-227-9318 GATOR TRANSMIITER CASE feather lite GLASS CLOTH 7 oz/sq yd weight close weave makes thi& giasa cloth easy filling extremely light finished weight Big 3 sq yd package detailed instructions$895 SOFT-N-SAFE MOUNTS U new type engine soft mount using special ribbed Iso-damp grommels Engine always safely retained Very effective vibration reduction dramatic decrease engine shake Available very light machined alum beam mount 60 2/strokes 120 4/strokes Also available slum plate rsdial mount 60 2/strokes SoftNSafe 120 beam mount complete.$2995 Soft-N-Safe 60 beam mount complete..S2495 *SoftNSafe 60 radial mount complete..$1295 Replacement grommets 120 mount .A/495 Replacement grommets 60 mount 5 RADIAL ISO-MOUNTS Conventional plate type mount using four Lord/type 60 Duro Iso-mounts Optimized lowest vibration transmission airframe reduced engine shake *60 Radial Iso-mount complete mount. 41495 Isomounta Pkg four $ 995 5/8 din x 1/2 long 8-32 female end 8-32 x 1/2 male other end 60 Duro rubber justification putting after-mn oil engine youre through daywhether use synthetics Once again use Rislone Marvel Mystery oil good too Both available local auto supply different engines coming shop get broad view trends porting arrangements currently production Some like SuperTigre producing both ringed piston/steel liner true ABC version several sizes Oddly ABC versions have relatively high tuned-pipe/muffler timing example G-45 ABC checked 1550 exhaust timing CL G-5 1 built same basic case 1400 does follow sizes however G-29 ABC G-34 ABC ringed piston G-34 ringed/steel cylinder checked out l55 exhaust timing range timing high engines obviously aimed tuned-pipe muffler RC market However propped let really turn high revs could also make fine free flight engines plan use G-34 ABC modified intake port timing test bed tuned-pipe/muffler setup profile Nobler idea find simple less expensive way gain power continuing suppress noise will cost us flying sites Also number engines now market have nickel-plated cylinders Commonly called ABC Aluminum piston Brass-Chromed cylinder latest editions really ABN criticism butmake no mistakechrome much harder nickel also much difficult plate chrome nickel thus expensive important point Since nickel softer would wise increase castor oil content fuel ABN engines understanding Paul Walker won both AMA Nationals World Stunt Championships using OS 46 VF ABN engine has two years over 2500 flights remarkable performance concerned great resurgence nostalgia stunt free flight starting put real drain engines apply era non-Schnuerle engines 35 above still production come Fox Merco used think nothing running 60% nitro fuel K&B Greenhead because new part near local hobby shop Today parts can found well advised use fuel least 25% castor oil maximum 25% nitro have also noted various nostalgia free flights sound like climbing 100 mph really doing about 40 less Perhaps because have become accustomed running K&B 325 Schnuerle 24000 8 x 4 prop put same thing 19 Greenhead because same size reality engines different oranges roses port timing engines era says luggersie meant develop maximum output much lower rpm range means can swing larger prop certainly will last longer run manner cases get just high higher Deciphering engines allowed NFFS Nostalgia class competition has become real chore sizes larger 049 might simplify things quite bit rule simply stated Any non-ballbearing engine baffle piston made after 1957 cutoff date Perhaps some manufacturers would go back making good dependable less expensive non-Schnuerle engines us have written sent SASEs know answer mall have added fax machine 210 656-2021 will answer after six rings hang up after five wont charged Im away lying TodaylMyors Continued page 61 left off 1992 AMA National Model Airplane Championships Nats schedule would have acceptable AMA rules made feasible electric-powered airplanes compete win events such 1/2A Free Flight Control Line Navy Carrier RC Pattern Indoor Duration etc AMAs contest boards have failed address issue handicaps Thats what wrong situation dont need competitions electric-powered airplanes need AMA competitions electricpowered airplanes can enter win Electric-powered flying fastestgrowing part hobby Electric fliers should get act together means Get compete Convince CDs know build Electric plane equal conventionally powered planes flying event youre interested fly against win DESCRIPTION OF SIG THE SOCIETY OF ANTIQUE MODELERS SAM Sometimes think United States losing its technological edge because too youth focus support obscene incomes available drugs pop music professional sports instead tackling technical challenges good engineer can work whole life earn less football player eams year endorsing alcohol tobacco something about economic system very warped Now Ive gotten last item off chest lets examine SIG internal combustion engines coexist electric motors 142 Model Aviation I high-density molded plastic Cuahions impact resists weather Strong double hinges durable latch Convoluted foam liner Great storing spare transmitters New low priee..$1495 Include $350/Item S&HFL Residents Add 6% Tax GATOR R/C PRODUCTS INC 3713 Pompano Dr Pensacola FL 32514 Phone 904 494-0203 904 494-0207
Edition: Model Aviation - 1993/03
Page Numbers: 58, 59, 141, 142
M Aidrici TRAILING EDGE During past year has single week did hear someone interested inor getting involved withsome sort Old-Timer modeling Regardless reasons have drawn back trailing-edge-oftechnology modeling pervasive attitude felt us Winning just sake winning main attraction majorityeven once competed almost frantic levelthe demands obligations present lifestyle prevent winning being important part interest high-tech world Schnuerle ported engines exotic electronics RTF ready-to-fly ARF almost-ready-to-fly models world would such large contingent choose go back history build fly designs 40 years old AMA Nationals sporting 90-plus events competition winning trophy has secondary importance Whether reliving early years building design always admired experiencing activity read about recreation has prime motivation would suggest taken mean both re-create refresh has said Old-Timers dying breed Because some us show various amounts gray hair such conclusion might drawn However since younger people get involved let hasten amend say Old-Timer building flying far dead early tenets Old-Timer modeling advance state art has provided newcomers opportunity rediscover some old building techniques well operate engine spark ignition Now aspect flying Old-Timers have never seen addressed following particular way racing events soon say race winning becomes factor closely related dollars spent Old-Timer events attempt duplicate modeling way means using basic type engine fuel prevalent during era being recreated free flight engine run allowed 25 seconds ROG rise-off-ground 20 seconds HL hand-launchjust late pre-WW II times Also during period over 90% modelers used fuel consisting basically 70-weight oil gasoline early postwar years spark engine gas n oil used great majority US concentrated developing spark ignition engine English leaned compression ignition diesel engine Greatly hampered war direct attacks like Battle Britain industry UK remained behind us some time Certainly diesel engine seriously considered free flight before 1950 country fact engine era has effect OTFF flown todaythe Elfin 249cc 15 cu diesel Because weight saved eliminating ignition system coupled high output Elfin very difficult compete equitable basis using spark-ignition-powered model Having love affair diesels 25 years own repros Elfin built three different countries also have two A-class SAM-legal models Comet Mercury 288 sq powered very good Morrill 19 ignition engine Megow Ranger 347 sq Dunham Argo Elfin up front Both models fly very well real pleasure early morning buoyant air 58 Model Aviation 2 Tarrytown San Antonio TX 78233 Comet Mercury top Morrill Hornet 19 just cant compete Elfin 15 diesel-powered Megow Ranger miniature microswitch modifies KSB fuel cutoff timer shut off ignition system Arm canted allow slide up red actuator button Pinch-oft pin removed arm stop made scrap stock Dick Bell linked four Testors McCoy 35s form 14-cu-in four-cylinder inline Just imagine sound Drone diesel two-piece adjustable compression contrapiston Note nonstandard needle valve Aiming toward Simple sport speed event jet speed man Charlie Davis testing inexpensive piped engines Ranger will close five minutes Mercury about half time difference Ranger weighs exactly its required weight Mercury about 31/2 oZ moreor ignition system weight Couple diesels ability swing prop flight time gain easily apparent Obviously winning prerequisite us continue build class OTFF powered true spark-ignition engines Perhaps enough us care about retaining event truly flown will promote spark-ignition-only event same vein thought very few ever ran engines alcohol fuel pressurized fuel systems old days Just smell old gas n oil fuel brings back fond memories well-spent youth aided no small way making lot fine people today Old-Time Vintage stunt two basic events third hanging commonly referred Nostalgia Old-Time Old-Time Ignition stunt events Although stunt community afflicted great degree win-at-all-costs attitude does need solid set universal rules means including unknown unrecognized designs Only about 20% models flown during 1947-1950 era considered legal unrecognized designs include placed won national competition 1949 Netzeband design far ahead its time Fortunately engine controversial problem stunt wealth fine engines available can made run properly dont outset main reason great outpouring seems attraction returning simpler times Build way werebalsa silkspan easy paint jobs No high-tech needed little carbon fiber reinforce spars-or glassed nose sectionsjust makes model durable otherwise no changes design construction desirable number newsletters receive have included comments about ways eliminate fuel foaming seems someone discovered couple squirts compounds sold treat upholstery tires etc would virtually prevent foam forming fuel tank Most such products contain form liquid silicone breaks down surface tension thereby hampers fuels ability form bubbles have no way knowing ingredients make up products really arent very compatible fuel Another way eliminate fuel foaming use wetting agent Basically wetting agent meant make water wetter Such agents used diverse industries ranging farming way photography farming wetting agent saves amount insecticide needed cover acre because wets surfaces leaves better Photographers use product far easier obtain small quantities Almost photography supply shop carries product called photo flow solution used treating prints Because available concentrated form two drops needed entire gallon fuel fuel business some years ago two ounces added 156 gallons antifoam agent number readers have written say Fourmost Products produces one-way check valve stop fuel backflowing engine via pressure line Others have written ask about availability engine shutoff timers ignition systems knowledge no producing such item time Most modelers mount microswitch directly timer case photos should give good idea done After notching out face plate routine tack microswitch place tiny drop CyA cyanoacrylate glue After am certain everything set up properly line slow thick CyA applied given shot kicker set up quickly variations possible got Bruce Chandler 10 years ago years us used synthetic lubricants engines have assumed Continued page 141 learned Jim Walker swing Howard Bueschel U-Reely hand prepares put show Trenton NJ old Veco Brave March 1993 59 Jim Silhavy designed Magician stunt trainer years ago Johnson 33S powers replica built Mike Ditrich Erie Pa Tom Wardens Minado includes seven shades purple Such models needed next Vintage Stunt Champs Two rare MCCA Mccoy 60 engines Shaving typical 1940s speed fliers seen left other engine has no file marks PROGRAM SELECTION DISKETTE SELECTION PRICES LISA & CANADA PRICES OVERSEAS SENOPROGRAMiCCA CO CCC #65C 574 SENDPROGRAM2CCA CO CC IC $55CS64 SEND BOTH PROGRAMS CCA 59 CC IC $123 plane down runway carried back pits instead taxiing back hat goes off Ken Robbins Helena Flying Tigers can boast identical concern safety little closer home recently fledgling endeavors fly helicopters led SAM field Desoto Mississippi annual Memphis Fall Helicopter FunFly Obviously curious learn about rotor heads safety practiced such events Contest Director Mike Fortune set tone during pilots briefing indicating no needed take unnecessary chances might result aircrafts demise Flight lines different flying times pilots class frequency control five-foot safety fences spectators order day Doing maintenance before arriving flying field helicopter must choppers rotor head things come apart poorly maintained quality what presented static flying events superb very impressed professionalism flying abilities well-maintained machines Mike Fortune X-Cell 60 Custom Dana Swah Kalt Baron Alpha 2 Michael Cusanelli modified Schulter 60 Scout first-class event safety lead end column month let mention concern passed Dave Elliot pattern flier Millington Tennessee Barnstormers Club After attending numerous pattern events Dave indicates frustration exists among some fliers using carbon-fiber props several have disintegrated air Dave handed remains several props inspection displayed symptoms identical problem prop subjected spinner-cone squeeze result trying fit highpitch prop shallow spinner opening As consequence spinner cut carbon fiber thereby ruining its reliability accident waiting happen fix open up slots spinner until large enough ensure spinner will touch prop after being secured spinner backplate Ive used Dremel tool sanding drum FIX IT YOURSELF use Save Money SaveTime As low $ 995 write CallSmithy Dept MA 1 -800-345-6342Lathe l 3023 t 2nd Street Ask operator MAThe Dalles DR 97050 open holes successfully aluminum plastic spinners final touch balance spinner utilizing several balancing systems available hobby shops Remember prop damaged way its safety has severely compromised worth risk damage yourself aircraft try using time simple rule follow doubt throw out Until next month have safe get cards letters pictures flowing roundlAldrich Continued page 59 resultant rust ferrous parts caused moisture residue left after fuel run out andlor some form nitric acid caused burning nitromethane pen pal Germany retired chemist tells polyglycol type lubes common use today create own acid burn just further ireball RIC Idle-Bar Glow Plugs Long Short$209 Only Also. Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $169 Swanson Associates PO Box 51 ne NJ 07470 March 1993 141 DESIGN YOUR OWN RC MODEL SAILPLANE AND ANALYZE ITS FLIGHT PERFORMANCE INTRODUCING TWO NEW EDUCATIONAL COMPUTER PROGRAMS PROGRAM 1 RC MODEL SAILPLANESDESIGN AND ANALYSIS RS STABILITY AND CONTROL PROGRAM 2 RC MODEL SAILPLANESSTEAOY STATE FLIGHT ANALYSIS COVERS PERFORMANCE ESTIMATION AND THE DETAILED ANALYSIS OF SOURCES OF DRAG KEY FEATURES aTHE USER MANUALS CONTAIN STEPBYSTEP INSTRUCTION FOR INPUTTING DESIGN DATA j BOTH PROGRAMS CONTAIN EXTENSIVE TUTORIAL BACKGROUND MATERIAL IN COLOR GRAPIIIC FORM EQUATIONS AND DATA USED IN THE PROGRAMS ARE CAREFULLY REFERENCED TO STANGARO TEXT BOOKS AND REFERENCE WORKS OF AERONAUTICAL I MANY EXAMPLES INCLUDED COMPUTER REQUIREMENTS 1DM PERSOtIAL COMPUTER MODEL XT OR AT OR PS2 OR COMPATIBLE COMPUTER RUNNING MSDOS 33 OR LATER b EGA OR VGA COLOR DISPLAY c 316 KB OF COMPUTER MEMORY d HARD DISK DRIVE WITH 35 MB OF AVAILABLE MEMORY AT LEAST ONE OF THE FOLLOWING DISKETTE DRIVES 35 IN 144 MB z B 35 IN 729 KB C 525 IN 12 MB PRINTER IS OPTIONAL PLEASE NOTE 366 KB DRIVES ARE NOT SUPPORTED TO ORDERi CHECK THE APPROPRIATE BOXES ATTACH YOUR CHECK OR MONEY ORDER WITH YOUR MAILING ADORESS MAIL TO STELLAR INSTRUMENT NORTHWEST INC 7 POWDERHORN DRIVE BEND 77019554 PRICES INCLUDE FUST CLASS POSTAGE 90 DAY LIMITED WARRANTY 6 SUNGLASSES $1195 $2S&H 100% VV Protection Shatterproof Excellent Optical Quality Tints Fit Over Prescriptions SKYS RO BOX 1000 MFRIES VA 22026 800-227-9318 GATOR TRANSMIITER CASE feather lite GLASS CLOTH 7 oz/sq yd weight close weave makes thi& giasa cloth easy filling extremely light finished weight Big 3 sq yd package detailed instructions$895 SOFT-N-SAFE MOUNTS U new type engine soft mount using special ribbed Iso-damp grommels Engine always safely retained Very effective vibration reduction dramatic decrease engine shake Available very light machined alum beam mount 60 2/strokes 120 4/strokes Also available slum plate rsdial mount 60 2/strokes SoftNSafe 120 beam mount complete.$2995 Soft-N-Safe 60 beam mount complete..S2495 *SoftNSafe 60 radial mount complete..$1295 Replacement grommets 120 mount .A/495 Replacement grommets 60 mount 5 RADIAL ISO-MOUNTS Conventional plate type mount using four Lord/type 60 Duro Iso-mounts Optimized lowest vibration transmission airframe reduced engine shake *60 Radial Iso-mount complete mount. 41495 Isomounta Pkg four $ 995 5/8 din x 1/2 long 8-32 female end 8-32 x 1/2 male other end 60 Duro rubber justification putting after-mn oil engine youre through daywhether use synthetics Once again use Rislone Marvel Mystery oil good too Both available local auto supply different engines coming shop get broad view trends porting arrangements currently production Some like SuperTigre producing both ringed piston/steel liner true ABC version several sizes Oddly ABC versions have relatively high tuned-pipe/muffler timing example G-45 ABC checked 1550 exhaust timing CL G-5 1 built same basic case 1400 does follow sizes however G-29 ABC G-34 ABC ringed piston G-34 ringed/steel cylinder checked out l55 exhaust timing range timing high engines obviously aimed tuned-pipe muffler RC market However propped let really turn high revs could also make fine free flight engines plan use G-34 ABC modified intake port timing test bed tuned-pipe/muffler setup profile Nobler idea find simple less expensive way gain power continuing suppress noise will cost us flying sites Also number engines now market have nickel-plated cylinders Commonly called ABC Aluminum piston Brass-Chromed cylinder latest editions really ABN criticism butmake no mistakechrome much harder nickel also much difficult plate chrome nickel thus expensive important point Since nickel softer would wise increase castor oil content fuel ABN engines understanding Paul Walker won both AMA Nationals World Stunt Championships using OS 46 VF ABN engine has two years over 2500 flights remarkable performance concerned great resurgence nostalgia stunt free flight starting put real drain engines apply era non-Schnuerle engines 35 above still production come Fox Merco used think nothing running 60% nitro fuel K&B Greenhead because new part near local hobby shop Today parts can found well advised use fuel least 25% castor oil maximum 25% nitro have also noted various nostalgia free flights sound like climbing 100 mph really doing about 40 less Perhaps because have become accustomed running K&B 325 Schnuerle 24000 8 x 4 prop put same thing 19 Greenhead because same size reality engines different oranges roses port timing engines era says luggersie meant develop maximum output much lower rpm range means can swing larger prop certainly will last longer run manner cases get just high higher Deciphering engines allowed NFFS Nostalgia class competition has become real chore sizes larger 049 might simplify things quite bit rule simply stated Any non-ballbearing engine baffle piston made after 1957 cutoff date Perhaps some manufacturers would go back making good dependable less expensive non-Schnuerle engines us have written sent SASEs know answer mall have added fax machine 210 656-2021 will answer after six rings hang up after five wont charged Im away lying TodaylMyors Continued page 61 left off 1992 AMA National Model Airplane Championships Nats schedule would have acceptable AMA rules made feasible electric-powered airplanes compete win events such 1/2A Free Flight Control Line Navy Carrier RC Pattern Indoor Duration etc AMAs contest boards have failed address issue handicaps Thats what wrong situation dont need competitions electric-powered airplanes need AMA competitions electricpowered airplanes can enter win Electric-powered flying fastestgrowing part hobby Electric fliers should get act together means Get compete Convince CDs know build Electric plane equal conventionally powered planes flying event youre interested fly against win DESCRIPTION OF SIG THE SOCIETY OF ANTIQUE MODELERS SAM Sometimes think United States losing its technological edge because too youth focus support obscene incomes available drugs pop music professional sports instead tackling technical challenges good engineer can work whole life earn less football player eams year endorsing alcohol tobacco something about economic system very warped Now Ive gotten last item off chest lets examine SIG internal combustion engines coexist electric motors 142 Model Aviation I high-density molded plastic Cuahions impact resists weather Strong double hinges durable latch Convoluted foam liner Great storing spare transmitters New low priee..$1495 Include $350/Item S&HFL Residents Add 6% Tax GATOR R/C PRODUCTS INC 3713 Pompano Dr Pensacola FL 32514 Phone 904 494-0203 904 494-0207
Edition: Model Aviation - 1993/03
Page Numbers: 58, 59, 141, 142
M Aidrici TRAILING EDGE During past year has single week did hear someone interested inor getting involved withsome sort Old-Timer modeling Regardless reasons have drawn back trailing-edge-oftechnology modeling pervasive attitude felt us Winning just sake winning main attraction majorityeven once competed almost frantic levelthe demands obligations present lifestyle prevent winning being important part interest high-tech world Schnuerle ported engines exotic electronics RTF ready-to-fly ARF almost-ready-to-fly models world would such large contingent choose go back history build fly designs 40 years old AMA Nationals sporting 90-plus events competition winning trophy has secondary importance Whether reliving early years building design always admired experiencing activity read about recreation has prime motivation would suggest taken mean both re-create refresh has said Old-Timers dying breed Because some us show various amounts gray hair such conclusion might drawn However since younger people get involved let hasten amend say Old-Timer building flying far dead early tenets Old-Timer modeling advance state art has provided newcomers opportunity rediscover some old building techniques well operate engine spark ignition Now aspect flying Old-Timers have never seen addressed following particular way racing events soon say race winning becomes factor closely related dollars spent Old-Timer events attempt duplicate modeling way means using basic type engine fuel prevalent during era being recreated free flight engine run allowed 25 seconds ROG rise-off-ground 20 seconds HL hand-launchjust late pre-WW II times Also during period over 90% modelers used fuel consisting basically 70-weight oil gasoline early postwar years spark engine gas n oil used great majority US concentrated developing spark ignition engine English leaned compression ignition diesel engine Greatly hampered war direct attacks like Battle Britain industry UK remained behind us some time Certainly diesel engine seriously considered free flight before 1950 country fact engine era has effect OTFF flown todaythe Elfin 249cc 15 cu diesel Because weight saved eliminating ignition system coupled high output Elfin very difficult compete equitable basis using spark-ignition-powered model Having love affair diesels 25 years own repros Elfin built three different countries also have two A-class SAM-legal models Comet Mercury 288 sq powered very good Morrill 19 ignition engine Megow Ranger 347 sq Dunham Argo Elfin up front Both models fly very well real pleasure early morning buoyant air 58 Model Aviation 2 Tarrytown San Antonio TX 78233 Comet Mercury top Morrill Hornet 19 just cant compete Elfin 15 diesel-powered Megow Ranger miniature microswitch modifies KSB fuel cutoff timer shut off ignition system Arm canted allow slide up red actuator button Pinch-oft pin removed arm stop made scrap stock Dick Bell linked four Testors McCoy 35s form 14-cu-in four-cylinder inline Just imagine sound Drone diesel two-piece adjustable compression contrapiston Note nonstandard needle valve Aiming toward Simple sport speed event jet speed man Charlie Davis testing inexpensive piped engines Ranger will close five minutes Mercury about half time difference Ranger weighs exactly its required weight Mercury about 31/2 oZ moreor ignition system weight Couple diesels ability swing prop flight time gain easily apparent Obviously winning prerequisite us continue build class OTFF powered true spark-ignition engines Perhaps enough us care about retaining event truly flown will promote spark-ignition-only event same vein thought very few ever ran engines alcohol fuel pressurized fuel systems old days Just smell old gas n oil fuel brings back fond memories well-spent youth aided no small way making lot fine people today Old-Time Vintage stunt two basic events third hanging commonly referred Nostalgia Old-Time Old-Time Ignition stunt events Although stunt community afflicted great degree win-at-all-costs attitude does need solid set universal rules means including unknown unrecognized designs Only about 20% models flown during 1947-1950 era considered legal unrecognized designs include placed won national competition 1949 Netzeband design far ahead its time Fortunately engine controversial problem stunt wealth fine engines available can made run properly dont outset main reason great outpouring seems attraction returning simpler times Build way werebalsa silkspan easy paint jobs No high-tech needed little carbon fiber reinforce spars-or glassed nose sectionsjust makes model durable otherwise no changes design construction desirable number newsletters receive have included comments about ways eliminate fuel foaming seems someone discovered couple squirts compounds sold treat upholstery tires etc would virtually prevent foam forming fuel tank Most such products contain form liquid silicone breaks down surface tension thereby hampers fuels ability form bubbles have no way knowing ingredients make up products really arent very compatible fuel Another way eliminate fuel foaming use wetting agent Basically wetting agent meant make water wetter Such agents used diverse industries ranging farming way photography farming wetting agent saves amount insecticide needed cover acre because wets surfaces leaves better Photographers use product far easier obtain small quantities Almost photography supply shop carries product called photo flow solution used treating prints Because available concentrated form two drops needed entire gallon fuel fuel business some years ago two ounces added 156 gallons antifoam agent number readers have written say Fourmost Products produces one-way check valve stop fuel backflowing engine via pressure line Others have written ask about availability engine shutoff timers ignition systems knowledge no producing such item time Most modelers mount microswitch directly timer case photos should give good idea done After notching out face plate routine tack microswitch place tiny drop CyA cyanoacrylate glue After am certain everything set up properly line slow thick CyA applied given shot kicker set up quickly variations possible got Bruce Chandler 10 years ago years us used synthetic lubricants engines have assumed Continued page 141 learned Jim Walker swing Howard Bueschel U-Reely hand prepares put show Trenton NJ old Veco Brave March 1993 59 Jim Silhavy designed Magician stunt trainer years ago Johnson 33S powers replica built Mike Ditrich Erie Pa Tom Wardens Minado includes seven shades purple Such models needed next Vintage Stunt Champs Two rare MCCA Mccoy 60 engines Shaving typical 1940s speed fliers seen left other engine has no file marks PROGRAM SELECTION DISKETTE SELECTION PRICES LISA & CANADA PRICES OVERSEAS SENOPROGRAMiCCA CO CCC #65C 574 SENDPROGRAM2CCA CO CC IC $55CS64 SEND BOTH PROGRAMS CCA 59 CC IC $123 plane down runway carried back pits instead taxiing back hat goes off Ken Robbins Helena Flying Tigers can boast identical concern safety little closer home recently fledgling endeavors fly helicopters led SAM field Desoto Mississippi annual Memphis Fall Helicopter FunFly Obviously curious learn about rotor heads safety practiced such events Contest Director Mike Fortune set tone during pilots briefing indicating no needed take unnecessary chances might result aircrafts demise Flight lines different flying times pilots class frequency control five-foot safety fences spectators order day Doing maintenance before arriving flying field helicopter must choppers rotor head things come apart poorly maintained quality what presented static flying events superb very impressed professionalism flying abilities well-maintained machines Mike Fortune X-Cell 60 Custom Dana Swah Kalt Baron Alpha 2 Michael Cusanelli modified Schulter 60 Scout first-class event safety lead end column month let mention concern passed Dave Elliot pattern flier Millington Tennessee Barnstormers Club After attending numerous pattern events Dave indicates frustration exists among some fliers using carbon-fiber props several have disintegrated air Dave handed remains several props inspection displayed symptoms identical problem prop subjected spinner-cone squeeze result trying fit highpitch prop shallow spinner opening As consequence spinner cut carbon fiber thereby ruining its reliability accident waiting happen fix open up slots spinner until large enough ensure spinner will touch prop after being secured spinner backplate Ive used Dremel tool sanding drum FIX IT YOURSELF use Save Money SaveTime As low $ 995 write CallSmithy Dept MA 1 -800-345-6342Lathe l 3023 t 2nd Street Ask operator MAThe Dalles DR 97050 open holes successfully aluminum plastic spinners final touch balance spinner utilizing several balancing systems available hobby shops Remember prop damaged way its safety has severely compromised worth risk damage yourself aircraft try using time simple rule follow doubt throw out Until next month have safe get cards letters pictures flowing roundlAldrich Continued page 59 resultant rust ferrous parts caused moisture residue left after fuel run out andlor some form nitric acid caused burning nitromethane pen pal Germany retired chemist tells polyglycol type lubes common use today create own acid burn just further ireball RIC Idle-Bar Glow Plugs Long Short$209 Only Also. Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $169 Swanson Associates PO Box 51 ne NJ 07470 March 1993 141 DESIGN YOUR OWN RC MODEL SAILPLANE AND ANALYZE ITS FLIGHT PERFORMANCE INTRODUCING TWO NEW EDUCATIONAL COMPUTER PROGRAMS PROGRAM 1 RC MODEL SAILPLANESDESIGN AND ANALYSIS RS STABILITY AND CONTROL PROGRAM 2 RC MODEL SAILPLANESSTEAOY STATE FLIGHT ANALYSIS COVERS PERFORMANCE ESTIMATION AND THE DETAILED ANALYSIS OF SOURCES OF DRAG KEY FEATURES aTHE USER MANUALS CONTAIN STEPBYSTEP INSTRUCTION FOR INPUTTING DESIGN DATA j BOTH PROGRAMS CONTAIN EXTENSIVE TUTORIAL BACKGROUND MATERIAL IN COLOR GRAPIIIC FORM EQUATIONS AND DATA USED IN THE PROGRAMS ARE CAREFULLY REFERENCED TO STANGARO TEXT BOOKS AND REFERENCE WORKS OF AERONAUTICAL I MANY EXAMPLES INCLUDED COMPUTER REQUIREMENTS 1DM PERSOtIAL COMPUTER MODEL XT OR AT OR PS2 OR COMPATIBLE COMPUTER RUNNING MSDOS 33 OR LATER b EGA OR VGA COLOR DISPLAY c 316 KB OF COMPUTER MEMORY d HARD DISK DRIVE WITH 35 MB OF AVAILABLE MEMORY AT LEAST ONE OF THE FOLLOWING DISKETTE DRIVES 35 IN 144 MB z B 35 IN 729 KB C 525 IN 12 MB PRINTER IS OPTIONAL PLEASE NOTE 366 KB DRIVES ARE NOT SUPPORTED TO ORDERi CHECK THE APPROPRIATE BOXES ATTACH YOUR CHECK OR MONEY ORDER WITH YOUR MAILING ADORESS MAIL TO STELLAR INSTRUMENT NORTHWEST INC 7 POWDERHORN DRIVE BEND 77019554 PRICES INCLUDE FUST CLASS POSTAGE 90 DAY LIMITED WARRANTY 6 SUNGLASSES $1195 $2S&H 100% VV Protection Shatterproof Excellent Optical Quality Tints Fit Over Prescriptions SKYS RO BOX 1000 MFRIES VA 22026 800-227-9318 GATOR TRANSMIITER CASE feather lite GLASS CLOTH 7 oz/sq yd weight close weave makes thi& giasa cloth easy filling extremely light finished weight Big 3 sq yd package detailed instructions$895 SOFT-N-SAFE MOUNTS U new type engine soft mount using special ribbed Iso-damp grommels Engine always safely retained Very effective vibration reduction dramatic decrease engine shake Available very light machined alum beam mount 60 2/strokes 120 4/strokes Also available slum plate rsdial mount 60 2/strokes SoftNSafe 120 beam mount complete.$2995 Soft-N-Safe 60 beam mount complete..S2495 *SoftNSafe 60 radial mount complete..$1295 Replacement grommets 120 mount .A/495 Replacement grommets 60 mount 5 RADIAL ISO-MOUNTS Conventional plate type mount using four Lord/type 60 Duro Iso-mounts Optimized lowest vibration transmission airframe reduced engine shake *60 Radial Iso-mount complete mount. 41495 Isomounta Pkg four $ 995 5/8 din x 1/2 long 8-32 female end 8-32 x 1/2 male other end 60 Duro rubber justification putting after-mn oil engine youre through daywhether use synthetics Once again use Rislone Marvel Mystery oil good too Both available local auto supply different engines coming shop get broad view trends porting arrangements currently production Some like SuperTigre producing both ringed piston/steel liner true ABC version several sizes Oddly ABC versions have relatively high tuned-pipe/muffler timing example G-45 ABC checked 1550 exhaust timing CL G-5 1 built same basic case 1400 does follow sizes however G-29 ABC G-34 ABC ringed piston G-34 ringed/steel cylinder checked out l55 exhaust timing range timing high engines obviously aimed tuned-pipe muffler RC market However propped let really turn high revs could also make fine free flight engines plan use G-34 ABC modified intake port timing test bed tuned-pipe/muffler setup profile Nobler idea find simple less expensive way gain power continuing suppress noise will cost us flying sites Also number engines now market have nickel-plated cylinders Commonly called ABC Aluminum piston Brass-Chromed cylinder latest editions really ABN criticism butmake no mistakechrome much harder nickel also much difficult plate chrome nickel thus expensive important point Since nickel softer would wise increase castor oil content fuel ABN engines understanding Paul Walker won both AMA Nationals World Stunt Championships using OS 46 VF ABN engine has two years over 2500 flights remarkable performance concerned great resurgence nostalgia stunt free flight starting put real drain engines apply era non-Schnuerle engines 35 above still production come Fox Merco used think nothing running 60% nitro fuel K&B Greenhead because new part near local hobby shop Today parts can found well advised use fuel least 25% castor oil maximum 25% nitro have also noted various nostalgia free flights sound like climbing 100 mph really doing about 40 less Perhaps because have become accustomed running K&B 325 Schnuerle 24000 8 x 4 prop put same thing 19 Greenhead because same size reality engines different oranges roses port timing engines era says luggersie meant develop maximum output much lower rpm range means can swing larger prop certainly will last longer run manner cases get just high higher Deciphering engines allowed NFFS Nostalgia class competition has become real chore sizes larger 049 might simplify things quite bit rule simply stated Any non-ballbearing engine baffle piston made after 1957 cutoff date Perhaps some manufacturers would go back making good dependable less expensive non-Schnuerle engines us have written sent SASEs know answer mall have added fax machine 210 656-2021 will answer after six rings hang up after five wont charged Im away lying TodaylMyors Continued page 61 left off 1992 AMA National Model Airplane Championships Nats schedule would have acceptable AMA rules made feasible electric-powered airplanes compete win events such 1/2A Free Flight Control Line Navy Carrier RC Pattern Indoor Duration etc AMAs contest boards have failed address issue handicaps Thats what wrong situation dont need competitions electric-powered airplanes need AMA competitions electricpowered airplanes can enter win Electric-powered flying fastestgrowing part hobby Electric fliers should get act together means Get compete Convince CDs know build Electric plane equal conventionally powered planes flying event youre interested fly against win DESCRIPTION OF SIG THE SOCIETY OF ANTIQUE MODELERS SAM Sometimes think United States losing its technological edge because too youth focus support obscene incomes available drugs pop music professional sports instead tackling technical challenges good engineer can work whole life earn less football player eams year endorsing alcohol tobacco something about economic system very warped Now Ive gotten last item off chest lets examine SIG internal combustion engines coexist electric motors 142 Model Aviation I high-density molded plastic Cuahions impact resists weather Strong double hinges durable latch Convoluted foam liner Great storing spare transmitters New low priee..$1495 Include $350/Item S&HFL Residents Add 6% Tax GATOR R/C PRODUCTS INC 3713 Pompano Dr Pensacola FL 32514 Phone 904 494-0203 904 494-0207