Gary Shaw Glad Back believe its appropriate begin column apology sudden disappearance column about six months ago As indicated Publications Manager June 1995 Model Aviation found out very short notice new six-month job assignment United Nations Croatia/Bosnia required give up writing time survived experience eagerly returned home family friends guess can honestly say enjoyed opportunity work UN although truly missed spending lazy summer afternoons flying field gang Funny being out country long periods makes home coming much sweeter Im glad back wrote absence provided SASEs youll receive response very soon havent already Thanks continuing write providing words encouragement course writing material Learned About Flying Such name story concerned modeler wanted everyone know what could happen fooled servo-reversing switches after starting model After reading mail received absence appears following scenario repeated itself several times across countrymost often computer radios Curious details Weather Channel predicted good flying weather next day hurried out workbench plug radio charger quick overnight charge After packing support gear car next morning went over unplug transmitter found completely discharged seems left transmitter night Well lost because another transmitter same channel still good charge off field went went through usual preflight especially range check walking 150 feet away checking see controls still moved did fueled up started engine After warming up checking traffic pattern took plane flight line began taxi out takeoff dismay plane turned left pushed stick right made apparent forgotten check control reversal Well thought since engine just idling plane stationary could quickiy reverse rudder having shut everything down Now channel rudder thought number three quickly reversed channel discover sudden screaming engine channel number three controlled throttle Before muddled brain could react plane air quickiy reduced fractured bird impacted ground Fortunately damage too severe although ended flying day Later mind-numbing thought occurred What plane pointed toward flight line instead away flight line pleasant thought As turned out fellow flier field observe stupidity potential victim carelessness So what did learn experience 1 Charge radios correctly make sure off before beginning charge 2 Always check control surfaces proper direction movement 3 anything discovered wrong during preflight correct before attempting fly Once corrected conduct another preflight before attempting fly know Ive talked about perils flipping servo-reversing switches past although believe focus computer radios time several years ago As mentioned above always conduct thorough preflight range check aircraft before flying includes nuts bolts correct servo operation range check antenna collapsed something doesn t seem nght youre sure enlist help another modeler second set eyes take home detailed check personal rule follow stay ground find something wrong before flying Its punishment doing homework before leaving house its good indicator Murphy followed flying fielda terrible combination Fell Off Since above letter got subject preflight checks another letter pointed out aggravation goes through suddenly see something drop airplane flying servo muffler wheel Still got control Maybe big bugs thats buzzing around day story few weeks ago couple us flying field getting planes ready some leisurely flying little slow going through preflight checks still messing around plane another club member taxiing Out takeoff enjoy watching takeoffs landings paused checkout admire beauty sleek little airplane becoming airborne takeoff nice smooth seemingly uneventful until right liftoff noticed small object bouncing along ground just below now-airborne aircraft bit puzzled about object until heard pilot exclaim just lost wheel Fortunately sufficient presence mind follow wheel retrieve pilot however faced problem land plane two its three wheels First determine just three wheels missing low flyby showed bare axle left main wheel used Next decide just position plane landing minimize damage resulting digging bare axle dirt 20mph correctly decided make slow approach right wing low touch down softly possible hope best did masterful job executing landing since rather sturdy ship happened deep furrow runway scuffed up right wing mother ground loops What did learn experience Now preflights includes wheel-collar check tightuess screws An additional point installing wheel collars sure grind flat spot axle give screw something hold Also consider applying drop non permanent Loctite similar compound threads screw during installation keep working loose flight Return PET power May September 1994 columns wrote about perils using Polyethylene Terephthaiate PET containers compressed-air vessels driving air-powered retract systems illustrate concern photo destroyed B-25 graphically demonstrated danger using PET containers model aircraft going through accumulated mail came across interesting letter modeler/engineer W L Kincheloe March 1995 offers good advice still use PET containers youre wondering measure PET container burst pressures relative safety Mr Kincheloe provides following iaformation ingenuity modelers adapting materials processes devices use 70 Model Aviation ncing hobby extends back least 1871 whalebone stays ladies corsets used power early helicopter surprising lure modern materials methods should felt ranks new products metallurgists organic chemists point out pose certain hazards carbon fiber boron fiber PET bottles come mind immediately major hazard whalebone whale supplied it didnt have vote would use beverage containers compressed gas reservoirs have some advice distant past industry used steam engines drive large compressors compressed-air needs factory testing pressure vessel make proof destructive tests using water instead gas air Being incompressible least pressures interest modelers water will expand crack hole appears container Thus elastic properties container will spray area Gases released tend expand rapidly back original volume shown residue B25 Incidentally accurate gages requirement test use pressure vessels tests operation use same gage reading considered relative absolute Resist cost temptation pump er up match buddys claim have found significant differences between two gages measuring same pressure Thus pressure failure particular test really 100 psi gage might read 85 buddys 115 result predictable try equal power Safety will enhanced operator uses own equipment abides own test results using consistent repeatable procedures Since wrote about PET containers almost year-and-a-half ago Ive SANYO BAlTERIES RECEIVER PACKS TRANSMITIER PACKS HIGH CAPACITY CELLS LIGHT WEIGHT PACKS SHRINK WRAP GEL CELLS 1-800-346-0601 FAX 407-682-4469 TNR TECHNICAL INC 279 DOUGLAS AVENUE ALTAMONTE SPRINGS FL 32714 Exciting Stunt F lying See worlds best pilo s Hollywood Crash Scenes See Original Footage See warms 1st RIO Helicopfer Flights Scale Flyin9 worlds exotic mode s action Plus Night Flying Electric Models Pylon Races 800 596-2106 Rotor Kings Video ox 828 Orinda CA 94563 Only $2995 plus $350 S&H California Residents add $247 Tao Chocks Money Orders Acceptable Allow up 4 weeks Delinery HOT BOX FLIGHT SUPPORT January1996 71 Off Knees IW 300/b Seat Capacity nded Scale Voltmeter Monitor RX& 7 Charge matIc Glow Plug 01 ver MPI Super Power Panel ted Fused MasterAnd Panel Control Swltcha Nicad Glow Battery Charger 12v Starter Outlet t 12V Glow Fuel Pump /Drain Switch FoidDown Fuel Storage P1 iform Fuel Bottle 4-Holds 2 12V-7amp Gell Cell BatterIes Sure St rte 4-Automatically Monitora Charge Ste bs 12v Battery 4-Enough Storage Carry/Store 4 Tranamlttere 4-5 Compartment LIft Out Prop age Tray Ulsa asdPkstargVi9cceed TOLL FREE 1-800-468-2692 Mar West Mfg & 0/st Co Inc 3339 Fitzgerald Rd Suite Rancho Cordova CA 95742 TEL 916 961-4703 FAX 916983-1923 SUPERFAST LOW Im11DELI VERY PRICES ELIALWAYS MINIATURE BEARINGS FOR HOBBY & INDUSTRY For3 Complete Product Lines Have Premium UltraSeal frictronless sealed maintenance-free bearings L R/C CarsEconoPotiver bearings engineered strength & durabilityargest Trucks High-Speed hgh heat engne bea ngs Inventory Boats Standard US Metros zes anes Ask us aboutMIDAS TOUCH Othe F ne Prodacts Widest &Send $3 00 Cata/ogs Selection Helicopters Deaier Programa Avaiiable TOCK BOCA BEARING Co 7040W Palmetto Park Rd Suite 2304 Ml Baca Ratan FL 33433 Tel 407-998-0004 407-998-0119 ________ SAO CANADA CALL TOLL FREE 800-332-3256 DA told numerous failures resulted total near-total devastation models date Im aware anyone being injured during PET explosion although its obvious possibility exists injury shrapnel Trust say understand devastating shrapnel can since witnessed effects first-hand overseas recap containers produced what tolerances believe review past conversation Jerry Broderick Quality Control Division Orlando based Constar Company PET manufacturer order very hot 600 plastic material blown down tube specific container mold Since mold water-jacketed cooled plastic substance quickly cools thus creating usable plastic container very simplified understanding Random samples various size containers chosen quality control testing forwarded burst testing chamber Containers selected testing first filled water pressurized 150 psi dont burst sampling specific lot considered satisfactory theyre forwarded bottlers use filled bottlers containers pressurized nitrogen 73 psi filled product Jerry continued say experiments containers pressures above 150 psi always resulted violent failures damage testing chamber As described access door burst chamber covered /8-inch-thick PVC sliding hatch container fails filled water door usually blown bits Based experience chamber Jerry surprised learn about models being turned confetti PET container fails after being filled compressed air As mentioned back May 1994 pointed out what some modelers already know PET containers manufactured used model aircraft Thats month Until next time keep wheels bottom have happy holiday season 41and five minutes can upgrade stan dard Futaba Airtronics servos ball bearing servos new EMS Ball Bearing Conversion Kit New case tops accurately molded super tough glass filled fuel-proof Celcon include top quality stainless steel ball bearing servo output shaft * Stops case top and/or plastic bushing wear * Prevents output gear shaft shimmy * Reduces friction improves servo centering * Enhances performance airplanes boats & cars * Mandatory helicopter servos * Free output arm provided case tap * Guaranteed against breakage year * pay $3995 $2995 BBC-l Fits FUTABA S28/S128 S3SISI3S S48/S148 Servos set 4$2595 RtL2 As above set 1$695 3 Fits AIRTRONICS 94102 Servos set 4 $2595 iDL-4 As above set 1$695 8BC-5 Ball Bearing Only JR 501 507 RCD APOLLO 05 10 FOCUS HS300 HS500 ACE 330342 342HS TOWER TS-5 Servos set 4$1995 Add $300 shipping Handling orders 22483 Mission Hills Lane 714 692-1393 Info Only california Residents Add 775% Sales Tax Yorba Linda CA 92687800 845-8978 Orders OnlyVISA MASTERCARD Accepted Aircraft Mag Wheels CNC machined aerospace-grade aluminum barstock Nylon bushings friction-free running long Wear Ratlitised corners high-stress areas Five-spoke mag wheel functional good looks Exclusive Rf8LOCK Tire Retention System maximum holding power Regessed center hub keep wheel collar inside rim Hub length sized fit 5/32 axles including Lite-Flights Aluminum C-Clip Axles lightweight flat-spot resistant foam Radiused tread design smooth ground hon g good looks nment foam tires nylon readily available VISA Master Card welcome Dealer inquiries invited call write Precision Model Products 14423 HixSt Livonia Michigan 48154 313 464-8594 CARLSON ENGINE IMPORTS Czech- MP JETS 061 Plain Bearing Glow 5000 5500 6000 Ball Bearing Glow 650070007600 Ball Bearing Diesel 650070007500 engines include silencer Add 400 P&M per Order Visa & Si/C OK 7eW4 c4 Sdciiei Sa Carison Engine Imports- 814 E Marconi Ave Phoenix Az USA 85022- Ph/Fax 602-863-1684 $29 FACTORY DIRECT HOT PRICE ON HOT ENGINE High Performance Competition Engine 177 oz AAN Schnuerle Port Side Exhaust Muffler Glow Plug Shims Included Sand-Casted Crankcase Maximum Durability Heat Dissipation Custom Hand-Fitted Piston Cylinder Call Now 800 665-9575 FAX 216 923-4345 MG/I/ISA 06 H $400 sny od, i, US e *40 625% Northern Velocity Ltd 3856 State Road Coyahogs Falls Ohio 44223 j2 DOftThl4tO \{LODIYTM January1996 75 TM
Edition: Model Aviation - 1996/01
Page Numbers: 70, 71, 75
Edition: Model Aviation - 1996/01
Page Numbers: 70, 71, 75
Gary Shaw Glad Back believe its appropriate begin column apology sudden disappearance column about six months ago As indicated Publications Manager June 1995 Model Aviation found out very short notice new six-month job assignment United Nations Croatia/Bosnia required give up writing time survived experience eagerly returned home family friends guess can honestly say enjoyed opportunity work UN although truly missed spending lazy summer afternoons flying field gang Funny being out country long periods makes home coming much sweeter Im glad back wrote absence provided SASEs youll receive response very soon havent already Thanks continuing write providing words encouragement course writing material Learned About Flying Such name story concerned modeler wanted everyone know what could happen fooled servo-reversing switches after starting model After reading mail received absence appears following scenario repeated itself several times across countrymost often computer radios Curious details Weather Channel predicted good flying weather next day hurried out workbench plug radio charger quick overnight charge After packing support gear car next morning went over unplug transmitter found completely discharged seems left transmitter night Well lost because another transmitter same channel still good charge off field went went through usual preflight especially range check walking 150 feet away checking see controls still moved did fueled up started engine After warming up checking traffic pattern took plane flight line began taxi out takeoff dismay plane turned left pushed stick right made apparent forgotten check control reversal Well thought since engine just idling plane stationary could quickiy reverse rudder having shut everything down Now channel rudder thought number three quickly reversed channel discover sudden screaming engine channel number three controlled throttle Before muddled brain could react plane air quickiy reduced fractured bird impacted ground Fortunately damage too severe although ended flying day Later mind-numbing thought occurred What plane pointed toward flight line instead away flight line pleasant thought As turned out fellow flier field observe stupidity potential victim carelessness So what did learn experience 1 Charge radios correctly make sure off before beginning charge 2 Always check control surfaces proper direction movement 3 anything discovered wrong during preflight correct before attempting fly Once corrected conduct another preflight before attempting fly know Ive talked about perils flipping servo-reversing switches past although believe focus computer radios time several years ago As mentioned above always conduct thorough preflight range check aircraft before flying includes nuts bolts correct servo operation range check antenna collapsed something doesn t seem nght youre sure enlist help another modeler second set eyes take home detailed check personal rule follow stay ground find something wrong before flying Its punishment doing homework before leaving house its good indicator Murphy followed flying fielda terrible combination Fell Off Since above letter got subject preflight checks another letter pointed out aggravation goes through suddenly see something drop airplane flying servo muffler wheel Still got control Maybe big bugs thats buzzing around day story few weeks ago couple us flying field getting planes ready some leisurely flying little slow going through preflight checks still messing around plane another club member taxiing Out takeoff enjoy watching takeoffs landings paused checkout admire beauty sleek little airplane becoming airborne takeoff nice smooth seemingly uneventful until right liftoff noticed small object bouncing along ground just below now-airborne aircraft bit puzzled about object until heard pilot exclaim just lost wheel Fortunately sufficient presence mind follow wheel retrieve pilot however faced problem land plane two its three wheels First determine just three wheels missing low flyby showed bare axle left main wheel used Next decide just position plane landing minimize damage resulting digging bare axle dirt 20mph correctly decided make slow approach right wing low touch down softly possible hope best did masterful job executing landing since rather sturdy ship happened deep furrow runway scuffed up right wing mother ground loops What did learn experience Now preflights includes wheel-collar check tightuess screws An additional point installing wheel collars sure grind flat spot axle give screw something hold Also consider applying drop non permanent Loctite similar compound threads screw during installation keep working loose flight Return PET power May September 1994 columns wrote about perils using Polyethylene Terephthaiate PET containers compressed-air vessels driving air-powered retract systems illustrate concern photo destroyed B-25 graphically demonstrated danger using PET containers model aircraft going through accumulated mail came across interesting letter modeler/engineer W L Kincheloe March 1995 offers good advice still use PET containers youre wondering measure PET container burst pressures relative safety Mr Kincheloe provides following iaformation ingenuity modelers adapting materials processes devices use 70 Model Aviation ncing hobby extends back least 1871 whalebone stays ladies corsets used power early helicopter surprising lure modern materials methods should felt ranks new products metallurgists organic chemists point out pose certain hazards carbon fiber boron fiber PET bottles come mind immediately major hazard whalebone whale supplied it didnt have vote would use beverage containers compressed gas reservoirs have some advice distant past industry used steam engines drive large compressors compressed-air needs factory testing pressure vessel make proof destructive tests using water instead gas air Being incompressible least pressures interest modelers water will expand crack hole appears container Thus elastic properties container will spray area Gases released tend expand rapidly back original volume shown residue B25 Incidentally accurate gages requirement test use pressure vessels tests operation use same gage reading considered relative absolute Resist cost temptation pump er up match buddys claim have found significant differences between two gages measuring same pressure Thus pressure failure particular test really 100 psi gage might read 85 buddys 115 result predictable try equal power Safety will enhanced operator uses own equipment abides own test results using consistent repeatable procedures Since wrote about PET containers almost year-and-a-half ago Ive SANYO BAlTERIES RECEIVER PACKS TRANSMITIER PACKS HIGH CAPACITY CELLS LIGHT WEIGHT PACKS SHRINK WRAP GEL CELLS 1-800-346-0601 FAX 407-682-4469 TNR TECHNICAL INC 279 DOUGLAS AVENUE ALTAMONTE SPRINGS FL 32714 Exciting Stunt F lying See worlds best pilo s Hollywood Crash Scenes See Original Footage See warms 1st RIO Helicopfer Flights Scale Flyin9 worlds exotic mode s action Plus Night Flying Electric Models Pylon Races 800 596-2106 Rotor Kings Video ox 828 Orinda CA 94563 Only $2995 plus $350 S&H California Residents add $247 Tao Chocks Money Orders Acceptable Allow up 4 weeks Delinery HOT BOX FLIGHT SUPPORT January1996 71 Off Knees IW 300/b Seat Capacity nded Scale Voltmeter Monitor RX& 7 Charge matIc Glow Plug 01 ver MPI Super Power Panel ted Fused MasterAnd Panel Control Swltcha Nicad Glow Battery Charger 12v Starter Outlet t 12V Glow Fuel Pump /Drain Switch FoidDown Fuel Storage P1 iform Fuel Bottle 4-Holds 2 12V-7amp Gell Cell BatterIes Sure St rte 4-Automatically Monitora Charge Ste bs 12v Battery 4-Enough Storage Carry/Store 4 Tranamlttere 4-5 Compartment LIft Out Prop age Tray Ulsa asdPkstargVi9cceed TOLL FREE 1-800-468-2692 Mar West Mfg & 0/st Co Inc 3339 Fitzgerald Rd Suite Rancho Cordova CA 95742 TEL 916 961-4703 FAX 916983-1923 SUPERFAST LOW Im11DELI VERY PRICES ELIALWAYS MINIATURE BEARINGS FOR HOBBY & INDUSTRY For3 Complete Product Lines Have Premium UltraSeal frictronless sealed maintenance-free bearings L R/C CarsEconoPotiver bearings engineered strength & durabilityargest Trucks High-Speed hgh heat engne bea ngs Inventory Boats Standard US Metros zes anes Ask us aboutMIDAS TOUCH Othe F ne Prodacts Widest &Send $3 00 Cata/ogs Selection Helicopters Deaier Programa Avaiiable TOCK BOCA BEARING Co 7040W Palmetto Park Rd Suite 2304 Ml Baca Ratan FL 33433 Tel 407-998-0004 407-998-0119 ________ SAO CANADA CALL TOLL FREE 800-332-3256 DA told numerous failures resulted total near-total devastation models date Im aware anyone being injured during PET explosion although its obvious possibility exists injury shrapnel Trust say understand devastating shrapnel can since witnessed effects first-hand overseas recap containers produced what tolerances believe review past conversation Jerry Broderick Quality Control Division Orlando based Constar Company PET manufacturer order very hot 600 plastic material blown down tube specific container mold Since mold water-jacketed cooled plastic substance quickly cools thus creating usable plastic container very simplified understanding Random samples various size containers chosen quality control testing forwarded burst testing chamber Containers selected testing first filled water pressurized 150 psi dont burst sampling specific lot considered satisfactory theyre forwarded bottlers use filled bottlers containers pressurized nitrogen 73 psi filled product Jerry continued say experiments containers pressures above 150 psi always resulted violent failures damage testing chamber As described access door burst chamber covered /8-inch-thick PVC sliding hatch container fails filled water door usually blown bits Based experience chamber Jerry surprised learn about models being turned confetti PET container fails after being filled compressed air As mentioned back May 1994 pointed out what some modelers already know PET containers manufactured used model aircraft Thats month Until next time keep wheels bottom have happy holiday season 41and five minutes can upgrade stan dard Futaba Airtronics servos ball bearing servos new EMS Ball Bearing Conversion Kit New case tops accurately molded super tough glass filled fuel-proof Celcon include top quality stainless steel ball bearing servo output shaft * Stops case top and/or plastic bushing wear * Prevents output gear shaft shimmy * Reduces friction improves servo centering * Enhances performance airplanes boats & cars * Mandatory helicopter servos * Free output arm provided case tap * Guaranteed against breakage year * pay $3995 $2995 BBC-l Fits FUTABA S28/S128 S3SISI3S S48/S148 Servos set 4$2595 RtL2 As above set 1$695 3 Fits AIRTRONICS 94102 Servos set 4 $2595 iDL-4 As above set 1$695 8BC-5 Ball Bearing Only JR 501 507 RCD APOLLO 05 10 FOCUS HS300 HS500 ACE 330342 342HS TOWER TS-5 Servos set 4$1995 Add $300 shipping Handling orders 22483 Mission Hills Lane 714 692-1393 Info Only california Residents Add 775% Sales Tax Yorba Linda CA 92687800 845-8978 Orders OnlyVISA MASTERCARD Accepted Aircraft Mag Wheels CNC machined aerospace-grade aluminum barstock Nylon bushings friction-free running long Wear Ratlitised corners high-stress areas Five-spoke mag wheel functional good looks Exclusive Rf8LOCK Tire Retention System maximum holding power Regessed center hub keep wheel collar inside rim Hub length sized fit 5/32 axles including Lite-Flights Aluminum C-Clip Axles lightweight flat-spot resistant foam Radiused tread design smooth ground hon g good looks nment foam tires nylon readily available VISA Master Card welcome Dealer inquiries invited call write Precision Model Products 14423 HixSt Livonia Michigan 48154 313 464-8594 CARLSON ENGINE IMPORTS Czech- MP JETS 061 Plain Bearing Glow 5000 5500 6000 Ball Bearing Glow 650070007600 Ball Bearing Diesel 650070007500 engines include silencer Add 400 P&M per Order Visa & Si/C OK 7eW4 c4 Sdciiei Sa Carison Engine Imports- 814 E Marconi Ave Phoenix Az USA 85022- Ph/Fax 602-863-1684 $29 FACTORY DIRECT HOT PRICE ON HOT ENGINE High Performance Competition Engine 177 oz AAN Schnuerle Port Side Exhaust Muffler Glow Plug Shims Included Sand-Casted Crankcase Maximum Durability Heat Dissipation Custom Hand-Fitted Piston Cylinder Call Now 800 665-9575 FAX 216 923-4345 MG/I/ISA 06 H $400 sny od, i, US e *40 625% Northern Velocity Ltd 3856 State Road Coyahogs Falls Ohio 44223 j2 DOftThl4tO \{LODIYTM January1996 75 TM
Edition: Model Aviation - 1996/01
Page Numbers: 70, 71, 75
Gary Shaw Glad Back believe its appropriate begin column apology sudden disappearance column about six months ago As indicated Publications Manager June 1995 Model Aviation found out very short notice new six-month job assignment United Nations Croatia/Bosnia required give up writing time survived experience eagerly returned home family friends guess can honestly say enjoyed opportunity work UN although truly missed spending lazy summer afternoons flying field gang Funny being out country long periods makes home coming much sweeter Im glad back wrote absence provided SASEs youll receive response very soon havent already Thanks continuing write providing words encouragement course writing material Learned About Flying Such name story concerned modeler wanted everyone know what could happen fooled servo-reversing switches after starting model After reading mail received absence appears following scenario repeated itself several times across countrymost often computer radios Curious details Weather Channel predicted good flying weather next day hurried out workbench plug radio charger quick overnight charge After packing support gear car next morning went over unplug transmitter found completely discharged seems left transmitter night Well lost because another transmitter same channel still good charge off field went went through usual preflight especially range check walking 150 feet away checking see controls still moved did fueled up started engine After warming up checking traffic pattern took plane flight line began taxi out takeoff dismay plane turned left pushed stick right made apparent forgotten check control reversal Well thought since engine just idling plane stationary could quickiy reverse rudder having shut everything down Now channel rudder thought number three quickly reversed channel discover sudden screaming engine channel number three controlled throttle Before muddled brain could react plane air quickiy reduced fractured bird impacted ground Fortunately damage too severe although ended flying day Later mind-numbing thought occurred What plane pointed toward flight line instead away flight line pleasant thought As turned out fellow flier field observe stupidity potential victim carelessness So what did learn experience 1 Charge radios correctly make sure off before beginning charge 2 Always check control surfaces proper direction movement 3 anything discovered wrong during preflight correct before attempting fly Once corrected conduct another preflight before attempting fly know Ive talked about perils flipping servo-reversing switches past although believe focus computer radios time several years ago As mentioned above always conduct thorough preflight range check aircraft before flying includes nuts bolts correct servo operation range check antenna collapsed something doesn t seem nght youre sure enlist help another modeler second set eyes take home detailed check personal rule follow stay ground find something wrong before flying Its punishment doing homework before leaving house its good indicator Murphy followed flying fielda terrible combination Fell Off Since above letter got subject preflight checks another letter pointed out aggravation goes through suddenly see something drop airplane flying servo muffler wheel Still got control Maybe big bugs thats buzzing around day story few weeks ago couple us flying field getting planes ready some leisurely flying little slow going through preflight checks still messing around plane another club member taxiing Out takeoff enjoy watching takeoffs landings paused checkout admire beauty sleek little airplane becoming airborne takeoff nice smooth seemingly uneventful until right liftoff noticed small object bouncing along ground just below now-airborne aircraft bit puzzled about object until heard pilot exclaim just lost wheel Fortunately sufficient presence mind follow wheel retrieve pilot however faced problem land plane two its three wheels First determine just three wheels missing low flyby showed bare axle left main wheel used Next decide just position plane landing minimize damage resulting digging bare axle dirt 20mph correctly decided make slow approach right wing low touch down softly possible hope best did masterful job executing landing since rather sturdy ship happened deep furrow runway scuffed up right wing mother ground loops What did learn experience Now preflights includes wheel-collar check tightuess screws An additional point installing wheel collars sure grind flat spot axle give screw something hold Also consider applying drop non permanent Loctite similar compound threads screw during installation keep working loose flight Return PET power May September 1994 columns wrote about perils using Polyethylene Terephthaiate PET containers compressed-air vessels driving air-powered retract systems illustrate concern photo destroyed B-25 graphically demonstrated danger using PET containers model aircraft going through accumulated mail came across interesting letter modeler/engineer W L Kincheloe March 1995 offers good advice still use PET containers youre wondering measure PET container burst pressures relative safety Mr Kincheloe provides following iaformation ingenuity modelers adapting materials processes devices use 70 Model Aviation ncing hobby extends back least 1871 whalebone stays ladies corsets used power early helicopter surprising lure modern materials methods should felt ranks new products metallurgists organic chemists point out pose certain hazards carbon fiber boron fiber PET bottles come mind immediately major hazard whalebone whale supplied it didnt have vote would use beverage containers compressed gas reservoirs have some advice distant past industry used steam engines drive large compressors compressed-air needs factory testing pressure vessel make proof destructive tests using water instead gas air Being incompressible least pressures interest modelers water will expand crack hole appears container Thus elastic properties container will spray area Gases released tend expand rapidly back original volume shown residue B25 Incidentally accurate gages requirement test use pressure vessels tests operation use same gage reading considered relative absolute Resist cost temptation pump er up match buddys claim have found significant differences between two gages measuring same pressure Thus pressure failure particular test really 100 psi gage might read 85 buddys 115 result predictable try equal power Safety will enhanced operator uses own equipment abides own test results using consistent repeatable procedures Since wrote about PET containers almost year-and-a-half ago Ive SANYO BAlTERIES RECEIVER PACKS TRANSMITIER PACKS HIGH CAPACITY CELLS LIGHT WEIGHT PACKS SHRINK WRAP GEL CELLS 1-800-346-0601 FAX 407-682-4469 TNR TECHNICAL INC 279 DOUGLAS AVENUE ALTAMONTE SPRINGS FL 32714 Exciting Stunt F lying See worlds best pilo s Hollywood Crash Scenes See Original Footage See warms 1st RIO Helicopfer Flights Scale Flyin9 worlds exotic mode s action Plus Night Flying Electric Models Pylon Races 800 596-2106 Rotor Kings Video ox 828 Orinda CA 94563 Only $2995 plus $350 S&H California Residents add $247 Tao Chocks Money Orders Acceptable Allow up 4 weeks Delinery HOT BOX FLIGHT SUPPORT January1996 71 Off Knees IW 300/b Seat Capacity nded Scale Voltmeter Monitor RX& 7 Charge matIc Glow Plug 01 ver MPI Super Power Panel ted Fused MasterAnd Panel Control Swltcha Nicad Glow Battery Charger 12v Starter Outlet t 12V Glow Fuel Pump /Drain Switch FoidDown Fuel Storage P1 iform Fuel Bottle 4-Holds 2 12V-7amp Gell Cell BatterIes Sure St rte 4-Automatically Monitora Charge Ste bs 12v Battery 4-Enough Storage Carry/Store 4 Tranamlttere 4-5 Compartment LIft Out Prop age Tray Ulsa asdPkstargVi9cceed TOLL FREE 1-800-468-2692 Mar West Mfg & 0/st Co Inc 3339 Fitzgerald Rd Suite Rancho Cordova CA 95742 TEL 916 961-4703 FAX 916983-1923 SUPERFAST LOW Im11DELI VERY PRICES ELIALWAYS MINIATURE BEARINGS FOR HOBBY & INDUSTRY For3 Complete Product Lines Have Premium UltraSeal frictronless sealed maintenance-free bearings L R/C CarsEconoPotiver bearings engineered strength & durabilityargest Trucks High-Speed hgh heat engne bea ngs Inventory Boats Standard US Metros zes anes Ask us aboutMIDAS TOUCH Othe F ne Prodacts Widest &Send $3 00 Cata/ogs Selection Helicopters Deaier Programa Avaiiable TOCK BOCA BEARING Co 7040W Palmetto Park Rd Suite 2304 Ml Baca Ratan FL 33433 Tel 407-998-0004 407-998-0119 ________ SAO CANADA CALL TOLL FREE 800-332-3256 DA told numerous failures resulted total near-total devastation models date Im aware anyone being injured during PET explosion although its obvious possibility exists injury shrapnel Trust say understand devastating shrapnel can since witnessed effects first-hand overseas recap containers produced what tolerances believe review past conversation Jerry Broderick Quality Control Division Orlando based Constar Company PET manufacturer order very hot 600 plastic material blown down tube specific container mold Since mold water-jacketed cooled plastic substance quickly cools thus creating usable plastic container very simplified understanding Random samples various size containers chosen quality control testing forwarded burst testing chamber Containers selected testing first filled water pressurized 150 psi dont burst sampling specific lot considered satisfactory theyre forwarded bottlers use filled bottlers containers pressurized nitrogen 73 psi filled product Jerry continued say experiments containers pressures above 150 psi always resulted violent failures damage testing chamber As described access door burst chamber covered /8-inch-thick PVC sliding hatch container fails filled water door usually blown bits Based experience chamber Jerry surprised learn about models being turned confetti PET container fails after being filled compressed air As mentioned back May 1994 pointed out what some modelers already know PET containers manufactured used model aircraft Thats month Until next time keep wheels bottom have happy holiday season 41and five minutes can upgrade stan dard Futaba Airtronics servos ball bearing servos new EMS Ball Bearing Conversion Kit New case tops accurately molded super tough glass filled fuel-proof Celcon include top quality stainless steel ball bearing servo output shaft * Stops case top and/or plastic bushing wear * Prevents output gear shaft shimmy * Reduces friction improves servo centering * Enhances performance airplanes boats & cars * Mandatory helicopter servos * Free output arm provided case tap * Guaranteed against breakage year * pay $3995 $2995 BBC-l Fits FUTABA S28/S128 S3SISI3S S48/S148 Servos set 4$2595 RtL2 As above set 1$695 3 Fits AIRTRONICS 94102 Servos set 4 $2595 iDL-4 As above set 1$695 8BC-5 Ball Bearing Only JR 501 507 RCD APOLLO 05 10 FOCUS HS300 HS500 ACE 330342 342HS TOWER TS-5 Servos set 4$1995 Add $300 shipping Handling orders 22483 Mission Hills Lane 714 692-1393 Info Only california Residents Add 775% Sales Tax Yorba Linda CA 92687800 845-8978 Orders OnlyVISA MASTERCARD Accepted Aircraft Mag Wheels CNC machined aerospace-grade aluminum barstock Nylon bushings friction-free running long Wear Ratlitised corners high-stress areas Five-spoke mag wheel functional good looks Exclusive Rf8LOCK Tire Retention System maximum holding power Regessed center hub keep wheel collar inside rim Hub length sized fit 5/32 axles including Lite-Flights Aluminum C-Clip Axles lightweight flat-spot resistant foam Radiused tread design smooth ground hon g good looks nment foam tires nylon readily available VISA Master Card welcome Dealer inquiries invited call write Precision Model Products 14423 HixSt Livonia Michigan 48154 313 464-8594 CARLSON ENGINE IMPORTS Czech- MP JETS 061 Plain Bearing Glow 5000 5500 6000 Ball Bearing Glow 650070007600 Ball Bearing Diesel 650070007500 engines include silencer Add 400 P&M per Order Visa & Si/C OK 7eW4 c4 Sdciiei Sa Carison Engine Imports- 814 E Marconi Ave Phoenix Az USA 85022- Ph/Fax 602-863-1684 $29 FACTORY DIRECT HOT PRICE ON HOT ENGINE High Performance Competition Engine 177 oz AAN Schnuerle Port Side Exhaust Muffler Glow Plug Shims Included Sand-Casted Crankcase Maximum Durability Heat Dissipation Custom Hand-Fitted Piston Cylinder Call Now 800 665-9575 FAX 216 923-4345 MG/I/ISA 06 H $400 sny od, i, US e *40 625% Northern Velocity Ltd 3856 State Road Coyahogs Falls Ohio 44223 j2 DOftThl4tO \{LODIYTM January1996 75 TM
