Safety Comes First

John Preston r7jC can airless paint sprayers safety hazard First read directionsthen read column Also glow engines starting unexpec tedly people stealing fre quency pins being sure correct servoreversing switch used AIRLESS PAINT SPRAYERS previous safety columns Ive mentioned potential hazard breathing vapors certain kinds paint used spray-painting model aircraft However another hazard concerning airless paint spray equipment could result serious injury unwary no matter what kind paint used came attention monthly newsletter put out Howard Crispin AMA District IV VP freiend Howards ended up hospital came close losing finger after grasped high-pressure hydraulic line because small leak injected hydraulic fluid flesh Thats incident related modeling doctor treated him stated .. increasing number people being seen getting situation spray-painting equipment Although Howards newsletter did qualifr what type paint spray equipment being used people doctor treated paint injection injuries feel sure airless type case familiar type spray gun let describe point out differs more-common air compressor/spray gun variety Airless paint sprayers exactly what name implies used compressed air spray paint Instead use hydraulic pump may driven electric motor electromagnetic linear motor latter term merely fancy name vibrator big difference between airless paint spray ers compressed-air variety oper ating pressure compressed-air-operated spray gun will have working pressure range 25-50 pounds per square inch psi some airless guns operate pressures 2500 psi Therein lies potential hazard place finger close spray nozzle airless gun pull trigger high working pressure capable injecting paint flesh turn may result blood poisoning loss finger hand About 10 years ago US Consumer Prod uct Safety Commission received number reports injuries resulted use airless paint sprayers its staff worked manufacturers products come up fix Currently-marketed airless paint sprayers have wamings instructions product itself tell user place finger over close nozzle addition have guard around nozzle prevent inadvertent contact believe guards would still permit deliberate contact spray nozzle might contemplated user should paint clogging occur Using finger unclog nozzle air-compressorpowered spray gun common practice Never attempt airless paint sprayer Staying subject paint let mention another safety-related item Howard Crispins newsletter concerned Imron paint popular some modelers because its superior finish subject recent article Washington Post newspaper under headline Firefighters Reproductive Prob lems Probed article stated Du Pont ~ompany manufacturer Imron pro viding $125000 study Johns Hopkins University Hospital Baltimore attempt disprove allegations huron cause reproductive problems among families firefighters problems miscarriages hopelessly-premature births babies fathered firefighters alleged compound Imron called ethoxyethanol may have caused problems after firefighters breathed vapors touching-up paint finish equipment have previously cautioned would-be users Imron observe its manufacturers safety pre cautions Better still use some other type paint cant finish durability multi-component polyurethane paints such huron provide effective res pirator must An air-line respirator Du Ponts first suggestion alternative vapor/particulate respirator its manufac turer states suitable use isocyanate vapors mists Dont forget after have finished painting model must left ventilated area away people until paint cures know least case modeler did experienced some respiratory difficulties result recent letter Brian Kuehn Peoria Heights IL described incident fortu nately did result injury Yet something should aware Im going quote directly Brians letter tell what happenedContinued page 16 14 Model Aviation t / \\ I SAY PAL- tNT HeAl~J 10 1URIV rbU O BEA T ttU JE W4 THAT FREQUENCY N LDEN GATE HOBBIES Y S ENGINES HATORI HEADERS/PIPES TETTRA HARDWARE ATLANTA 60 OMEGA 60 QUATRO 40 EXCEED 40 ACROSTAR SIGMA 60/40 BD-5 CANADAIR CT-114 SEE YOUR LOCAL HOBBY DEALER SEND $1 FOR CATALOG PO Box 4412 Burlingame CA 94010 TEL 415 467-3170 would like describe near-accident I doing touch-and-goes Sweet ard-Low Stik Enya 40 CV standard muffler 10 x 6 Power Prop 10% Blue Flame fuel noticed taxiing strangely Upon examination found tail wheel broken off due metal fatigue moved model pit area shut down went search missing tail wheel took about five minutes fiuid decided call day never leave fuel tank can help Since much fuel left decided start up run out tank engine warm particularly hot choked put Ni-Starter ran out prime stopped fuel ran back down line tank took off Ni-Starter laid grass opened throttle put thumb over venturi gave two sharp flips prime itas has usual pro cedure second flip Ni-Starter lying grass started caught totally unprepared throttle wide open fingernails left hand Im southpaw soundly rapped fortunately werent lacer ated pulled both hands back instinctively got away howling prop tried step backwards away model left wing hooked leg before could get away must have funny watch because next few seconds model chasing other circles until finally got solid grip left wing both hands dragged back transmitter hadnt broken jagged piece music wire place tail wheel dont think would have fast enough avoid serious injury Since have talked people found several others have glow engines start battery being hooked up blissfully unaware possibility until happened thought perhaps readers should warned potential danger have readers have warned first time Ive mentioned column incidents glow engines have surprised owners starting having battery attached glow plug would venture say cold engine unlikely start aid power glow plugbut Brian point$ out engine does have sizzling-hot before type thing can occur way prevent happening priming engine flulling through prop just Grasp blade between fingErs thumb pull thoigh compression people probably al ready after having primed engine connected battery glow plug prevent kicking back procedure especially recommended prime engine squirt ing fuel exhaust port can also prevent damage due hydraulic lock may result over-prime Continuing subject engines props back March 1985 issue mentioned kit being marketed World Engines relocates needle valve assembly rear crankcase several models OS engines obvious intention kit keep fingers out prop making mixture adjustments March column asked readers tried device drop line report well worked letter Bill Mitch lives Hebron N dld just Bill reported installed OS remote needle valve Flash 35 engine Continued page 18 16 Model Aviation U U U U W U UhT VNe p aU U U U U CHECK THESE FEATURES THEN COMPARE! High Film Strength Lubricant spe cial additives increase lubri city extreme pressure character istics oil ViscosIty Index Improver insure proper lubrication high RPM high temperatures Wetting Agents increase plating action oil Special Detergents cut power rob bing varnish Anti-Foam A&tltlves prevent high RPM lean-out Rust Prventatlvee protect expensive engines Highest Quality Ingredients insure top engine performance reliability Sheldons New Super-Sport Fuels special blend Nitros lower flying costs Insure long engine life have lowered oil content fuel formulations TypeNitro Lubricant1-4 Gal5-23 Gal2443 Gal64-123 Gal124 Gal FAi 00/aSynthetic$675$595 $550 $525$495 5s 5%Synthetic$775$695 $675 $650$595 Sc 5%Castor$775$695 $675 $650$595 lOs100/sSynthetic$895$619 $795 $775$750 lOc10%Castor$895$619 $795 $775$750 RIC12At/sSyn/Castor$995$919 $875 $650$795 iSs15%Synthetic$995$919 $875 $650$795 4-cyc 7s/oCastor/Syn$850$795 $775 $750$695 4-cyc15%Castor/Syn$995$919 $875 $650$795 10% -SUPERSPORT$795$695 $650 $625$595 150/s SUPER SPORT$895$795 $750 $725$695 10/s SUPER SPORT 4-cycle$795$695$650$625$595 SHELDONS HOBBY SHOP 3157 Alum Rock Avenue Jose Caltfornia 95127 Out State FOR ORDERS CALL California 800 228-3237 251-0789 Information Call 408 2518686 Hours Mon Wed Fri & Sat 9305 30 Thur 930900 Sun 1200500 NI/C VISA 123 Gal via UPS 24-124 Gal via truck freight PAID UPSCODOK-$190 $300 Handling per fuel order •EEEEEEEEuEEEEEEEEEEE HObbY Horn Old Timer born 4I1LJLLJ- 4lOtLL OS 9 GAS MODEL RECORD SOEAREO 1941 BROOKLYN DODGER 50 Cabin 0NEWEST5 Retail S52950iNTROOUCTORY PRICE $3900 193t Record Breaker 96 $6956 1939 Zipper 54553 96 1930 Kloud King 63 $5236 1941 Brigidier 96 $4076 1941 Super Quaker 79 $7276 1940 So Long 50$3036 1936 Buccaneer 94 $5996 1939 Clipper MKi 72$4156 1937 Dallaire isa $75 16 l935Miss America 94 $7196 1941 Playboy Sr 90 $91 16 1941 Playboy Jr 54 $3116 1939 Powerhouse 94 $53 56 1940 Sailplane 79 $9476 1939 Trenton Terror 72 $4976 1940 Ranger 46$3196 1939 Korda Wake 44 $1916 l939Mercury 72 6 kits qualify SAM events PP 6 B/C feature highest quality machine cut 6 sanded parta Superior Competition sheet strip wood wire & window materiol Plans orig PP models easily convertible Sob R/C KITS Sailpianes Electric power Gas Hobby Horn SENSOAR Glider 70 5s $1000 Midway Model GNOME R/C Hand Launch Glider$2400 Jolly Models FLINGER R/C HLG 59 Span$2400 Midway Model PAST EOOIE Acrobatic /05 Elec$1909 Jolly Models ELECTRICUS Electric Gilder 05s$3250 Leisure PLAYBOY SR 67 Gear 05 Elect $3000 Astro ASTRO SPORT 37 Oirect 05 Elect $2259 Leisure WASP 37 Oirect 0$ Electrics$2200 Midway ULTRA MK IV 96 Geared 04 EP $3900 Midway FLYING QUAKER 94 40454 stroke $6476 4ks/Midway DENNY JR 72 Alum Cowel$6396 OL MAiM.. fl 17700fl anuneuc 196 FULL LINE OF ELECTRIC SYSTEMS 6 Parts Avail SHIPPING & HANDLING 04 Page CATALOGUE Up $900 add $150 $200 PP/lot Class $001 $2000 add $225 copy will sent $2001 $4500 add $300 freewhen requested $4501 57000 add $350 order over 07000 add $400 HOBBY HORN CA Addressees add 65 tao 15173 Moran St Send MO Visa/MCI#*Exp PO Box 2212 Check tallow up 30 Westminster Ca 92694 days CK clearance f7140939311 COO Exact Charges plus $150 Hdl ICash Only lAB Hr5 714 9951203] Taiwan copy 0S engine according Bill Works great No worry about trimming fingernails adjusting needle Bill also Said thought OS remote needle valve kits would work Hobby Shack Thunder Tiger engines value fingernails might want give kits some thought seems have lot said hobby magazines recent months about interference RC frequencies appears radios airplane frequencies being sold RC car boat enthusiasts creating Some problems also appears some con fusion about visual identification frequen cy using means colored streamers channel numbers displayed trans mitter George Myers contributing editor Model Aviations Radio Technique col unin urge readers safety column also read Georges column stay current whats happening field frequency con trol interference RC model aircraft risk stepping Georges turf however would like reprint letter concern ing RC frequency control received ago An always-present risk RC flier comes fellow club member may turn transmitter same frequency inadvertently because forgot follow flying field procedures deliberately because thought possession clip pin whatever device being used control indi vidual frequencies flying field fol lowing letter Dr Stephen Risik Huntingdon Valley PA describes situation could occur RC flying field Most RC clubs use clothespin method controlling frequency usage benefit familiar scheme usually something like transmitter may turned corresponding frequency pin attached plane shot down flier turning transmitter does have pin attached shooter held financi ally responsible repair replacement downed aircraft short shoot down youve bought itunless owner does wish part willing settle cost repairs financial responsibility usually includes radio damage well Usually System works well within small ish clubs everybody knows other fliers importantly friends However system can break down selfish flier comes scene Common courte sy required fliers frequency control system breaks down Picture Its busy day field Planes constantly air Fliers waiting pin tree frequency pins returned Got picture Well step selfish flier doesnt stand pin tree watches flier currentiy using frequency wants use fliers plane comes few touch-and-goes first touch hard prop hits ground stops engine embarrassedflier hands transmitter friend hold runs onto field get now-quiet bird Upon returning pits immediately Starts up again Ten seconds later selfish flier comes storming over crying have pin plane selfish flier wheat frequency pin transmitter According rules club fault lles first flier because did notice pin stolen transmitter Continued page 128 18Model Aviation two other modelers Jim Jessup Corwin Crowell have built some two three hundred models display equipped RC engines Ray RC flier also told story building absolute-scale Spirit St Louis fellow Texas cost $11000 three others have built replica airplanes museum flown before being placed display As Im old Army Air Corps vet B- 17 bombardier WV II built models 30s returned model ing 1965 flew FF years now build Scale models fly RC Yet never too old learn wealth modeling know-how San Diego Aero Space Museum amazing models exact-scale Jenny wingspan 60 70 inches uncovered display glass case Some man Illinois Ohio spent years building Jenny wasnt completed before death son doI Plug t * OPS Special plug U control free flight PC boats high nitro use$160 OPS RC-250 plug RC engines out tuned pipes 09 60 size $250 RC-300 spectatular RC plug ducted fans piped pattern engines racing boats andRC cars. $300 Glow Plugs Are Available Local Hobby Shop SCall Parts People 9m~* Box 26247 New Orleans LA 70186 242-5967 nated museum com pleted Gosh ever another article museum make sure covers models modelers Harry Sutherland Grand Junction CO PE Norman sad duty inform passing Mr PE Norman modeler extraordinare did much develop ing ducted-fan models technology talent like Peters will go living though gone through accomplishments devotion helping fellow modeler So long Peter aerodrome sky. Ernest P Melcher Redondo Beach CA British modeler PE Norman widely published own country US modeling magazines responding advertisers mention read about ModelAviation Safety/Preston Continued page 18 Never before fliers experience other flier removed pin anybodys trans mitter first asking Are done case selfish flier absconded pin much word owner transmitter pin stolen moral story two-fold First always assume some scoundrel lurking shadows just waiting put transmitter down can steal frequency pin Second take frequency pin somebodys transmitter telling own er youre asking shot down Please walt flier say finished frequency never assume flier will notice absence pin did himself remove transmitter PS Stephens letter stated wasnt plane crashed assume above factual account crash RC flying field Although letter concerns itself reimbursement value damage sustained crash think safety implications self-evident finish up months column have another flying field incident once points out owners transmitters OUTHEASTERN ~-- KIT SPECIFICATIONS Span66 Inches 820 Sq Inches Weight73/4834 Lbs ize Engines WIPipe 8 1984 NATS Winner KIT FEATURES 0 Fiberglass Fuselage & Belly Pan Removable Fiberglass Canopy iled Plans Finished Bulkheads ware Package Wing & Stabilizer Cores ed Control Surfaces & Stabilizer Skins TICK OFF TIMER Now Available1 4 0-20 Seconds Fuei shut off Flood Ott Auto rudder function Weight % oz Fuel line inciuded EXTRA FUEL LINETUBINGSO- ft DIRECT ORDER ONLY Send Cash Check MO COD $3 extra Calif 6% JOHN TATONE 62 BELHAVEN AVE DALY CITY CA 94015 128 Model Aviation Its Time Put U Letters Editor Continued page 125 Limited supply AUTOGYRO airB C- THM Model Specification Rotor Diameter63 Overall length exc rotors33 Approx Weight mci engine less RIG465 lbs Recommended Power45 60 Cu Radio Control ..4 channel THE WORLDS FIRST SCALE R/C AUTOGYRO KIT 4 Kit Contents kit includes virtually everything necessary build model except RIC engine paints adhesives RETAIL PRICE $24995 SALE PRICE$21995 r Add $250 Insurance handling enclose payment E Check/MD LII Please send E Visa E MasterCard [I]Exp Dateorder CQDHOBBIES Card No _________________________________ Add $200 PO BOX 421160 MIAMI FLA 33242 THANK YOU FOR YOUR ORDERPHONE 305 638-4197 0 whistles bells should ever-alert whenJerry inadvertently flipped throttle-reversinghot know primer coat using letter Jerry Swaim Bald-switch instead ailerons letterwhen finally asked myself what doing win Park CA tells what happened wasclosed statement now allhere taxiing 40-powered model out runwaycontrol surfaces will checked neces- friend took Vag up north add As always am taxiing check thesary corrected before engine startedwindshield yellow paint have top control surfaces make sure everything isSounds like good practice us followlocal pilot test-fly Vags setup working properly occasion Inotlcedthat Have safe monthCG must aftof 20% chord can ailerons working backwards No bigtest safely say 17-18% marked CG problem thought Ill just flip reversing John Preston 12235 Ti/den wood Dr Rock-on cabin knew Pipers setup worked switch transmitter everything will beyule MD 20852would OK model because just fine transmitter has six little______________________________________screwball Airknocker described last monththe switches flipped thoughtsame deal Its nice trim out level flight ailerons things started happening prettyPlane Talk/Winterat fast cruise throttle/power fast fire breather front end startedContinued page 28techniqueadding power climb taking off screaming still taxiway For-to descend Nice no problems chaps tunately luckwas plane shot offway rudder post top Crosspiecesforgot paved area grass finallyrun wild angles steel-tube fuselages dont really good pilots have quickie stopped ithave smooth bends go straight statlon topreflight on-the-spot game plan things go guess can figure out yourselves thatstation curved tubing under compression isnt tinued page 133 IQUAY BARKER MOOELB CoeNlic WINO-~II 14 Ga 0W1 100kW oO Nli100001 1OOkig 640 flyig fooO,ofl 70 00 00 Oil ooNNOW NONA EpOyOSiNNN PASO ONOt, 0015 py 011 000 1110100 50,NPINtI000 INN100011 0110Oi1di0g 707 10 11 1001010 570500 POlO 1000100 0110 flOodi 100 0010 000007 00 74 N 1j sanding easy No 14111 nch No 14222 inch $250$365 Add 20% fo postagei best results use Self Adhesive Sheet SandpaperNo glue No drying time Ideal special sanding shapes Adheres materjaf& 9sl 1 sheets Choice oi Medium Fine Super Fine SCea //4UI45 APPLIED DESIGN CORP Penn Street egundo CA 90245 November 1985 129 0070 0000105 NOne P05 000 lINt ocolol SOSh poOtOt

John Preston r7jC can airless paint sprayers safety hazard First read directionsthen read column Also glow engines starting unexpec tedly people stealing fre quency pins being sure correct servoreversing switch used AIRLESS PAINT SPRAYERS previous safety columns Ive mentioned potential hazard breathing vapors certain kinds paint used spray-painting model aircraft However another hazard concerning airless paint spray equipment could result serious injury unwary no matter what kind paint used came attention monthly newsletter put out Howard Crispin AMA District IV VP freiend Howards ended up hospital came close losing finger after grasped high-pressure hydraulic line because small leak injected hydraulic fluid flesh Thats incident related modeling doctor treated him stated .. increasing number people being seen getting situation spray-painting equipment Although Howards newsletter did qualifr what type paint spray equipment being used people doctor treated paint injection injuries feel sure airless type case familiar type spray gun let describe point out differs more-common air compressor/spray gun variety Airless paint sprayers exactly what name implies used compressed air spray paint Instead use hydraulic pump may driven electric motor electromagnetic linear motor latter term merely fancy name vibrator big difference between airless paint spray ers compressed-air variety oper ating pressure compressed-air-operated spray gun will have working pressure range 25-50 pounds per square inch psi some airless guns operate pressures 2500 psi Therein lies potential hazard place finger close spray nozzle airless gun pull trigger high working pressure capable injecting paint flesh turn may result blood poisoning loss finger hand About 10 years ago US Consumer Prod uct Safety Commission received number reports injuries resulted use airless paint sprayers its staff worked manufacturers products come up fix Currently-marketed airless paint sprayers have wamings instructions product itself tell user place finger over close nozzle addition have guard around nozzle prevent inadvertent contact believe guards would still permit deliberate contact spray nozzle might contemplated user should paint clogging occur Using finger unclog nozzle air-compressorpowered spray gun common practice Never attempt airless paint sprayer Staying subject paint let mention another safety-related item Howard Crispins newsletter concerned Imron paint popular some modelers because its superior finish subject recent article Washington Post newspaper under headline Firefighters Reproductive Prob lems Probed article stated Du Pont ~ompany manufacturer Imron pro viding $125000 study Johns Hopkins University Hospital Baltimore attempt disprove allegations huron cause reproductive problems among families firefighters problems miscarriages hopelessly-premature births babies fathered firefighters alleged compound Imron called ethoxyethanol may have caused problems after firefighters breathed vapors touching-up paint finish equipment have previously cautioned would-be users Imron observe its manufacturers safety pre cautions Better still use some other type paint cant finish durability multi-component polyurethane paints such huron provide effective res pirator must An air-line respirator Du Ponts first suggestion alternative vapor/particulate respirator its manufac turer states suitable use isocyanate vapors mists Dont forget after have finished painting model must left ventilated area away people until paint cures know least case modeler did experienced some respiratory difficulties result recent letter Brian Kuehn Peoria Heights IL described incident fortu nately did result injury Yet something should aware Im going quote directly Brians letter tell what happenedContinued page 16 14 Model Aviation t / \\ I SAY PAL- tNT HeAl~J 10 1URIV rbU O BEA T ttU JE W4 THAT FREQUENCY N LDEN GATE HOBBIES Y S ENGINES HATORI HEADERS/PIPES TETTRA HARDWARE ATLANTA 60 OMEGA 60 QUATRO 40 EXCEED 40 ACROSTAR SIGMA 60/40 BD-5 CANADAIR CT-114 SEE YOUR LOCAL HOBBY DEALER SEND $1 FOR CATALOG PO Box 4412 Burlingame CA 94010 TEL 415 467-3170 would like describe near-accident I doing touch-and-goes Sweet ard-Low Stik Enya 40 CV standard muffler 10 x 6 Power Prop 10% Blue Flame fuel noticed taxiing strangely Upon examination found tail wheel broken off due metal fatigue moved model pit area shut down went search missing tail wheel took about five minutes fiuid decided call day never leave fuel tank can help Since much fuel left decided start up run out tank engine warm particularly hot choked put Ni-Starter ran out prime stopped fuel ran back down line tank took off Ni-Starter laid grass opened throttle put thumb over venturi gave two sharp flips prime itas has usual pro cedure second flip Ni-Starter lying grass started caught totally unprepared throttle wide open fingernails left hand Im southpaw soundly rapped fortunately werent lacer ated pulled both hands back instinctively got away howling prop tried step backwards away model left wing hooked leg before could get away must have funny watch because next few seconds model chasing other circles until finally got solid grip left wing both hands dragged back transmitter hadnt broken jagged piece music wire place tail wheel dont think would have fast enough avoid serious injury Since have talked people found several others have glow engines start battery being hooked up blissfully unaware possibility until happened thought perhaps readers should warned potential danger have readers have warned first time Ive mentioned column incidents glow engines have surprised owners starting having battery attached glow plug would venture say cold engine unlikely start aid power glow plugbut Brian point$ out engine does have sizzling-hot before type thing can occur way prevent happening priming engine flulling through prop just Grasp blade between fingErs thumb pull thoigh compression people probably al ready after having primed engine connected battery glow plug prevent kicking back procedure especially recommended prime engine squirt ing fuel exhaust port can also prevent damage due hydraulic lock may result over-prime Continuing subject engines props back March 1985 issue mentioned kit being marketed World Engines relocates needle valve assembly rear crankcase several models OS engines obvious intention kit keep fingers out prop making mixture adjustments March column asked readers tried device drop line report well worked letter Bill Mitch lives Hebron N dld just Bill reported installed OS remote needle valve Flash 35 engine Continued page 18 16 Model Aviation U U U U W U UhT VNe p aU U U U U CHECK THESE FEATURES THEN COMPARE! High Film Strength Lubricant spe cial additives increase lubri city extreme pressure character istics oil ViscosIty Index Improver insure proper lubrication high RPM high temperatures Wetting Agents increase plating action oil Special Detergents cut power rob bing varnish Anti-Foam A&tltlves prevent high RPM lean-out Rust Prventatlvee protect expensive engines Highest Quality Ingredients insure top engine performance reliability Sheldons New Super-Sport Fuels special blend Nitros lower flying costs Insure long engine life have lowered oil content fuel formulations TypeNitro Lubricant1-4 Gal5-23 Gal2443 Gal64-123 Gal124 Gal FAi 00/aSynthetic$675$595 $550 $525$495 5s 5%Synthetic$775$695 $675 $650$595 Sc 5%Castor$775$695 $675 $650$595 lOs100/sSynthetic$895$619 $795 $775$750 lOc10%Castor$895$619 $795 $775$750 RIC12At/sSyn/Castor$995$919 $875 $650$795 iSs15%Synthetic$995$919 $875 $650$795 4-cyc 7s/oCastor/Syn$850$795 $775 $750$695 4-cyc15%Castor/Syn$995$919 $875 $650$795 10% -SUPERSPORT$795$695 $650 $625$595 150/s SUPER SPORT$895$795 $750 $725$695 10/s SUPER SPORT 4-cycle$795$695$650$625$595 SHELDONS HOBBY SHOP 3157 Alum Rock Avenue Jose Caltfornia 95127 Out State FOR ORDERS CALL California 800 228-3237 251-0789 Information Call 408 2518686 Hours Mon Wed Fri & Sat 9305 30 Thur 930900 Sun 1200500 NI/C VISA 123 Gal via UPS 24-124 Gal via truck freight PAID UPSCODOK-$190 $300 Handling per fuel order •EEEEEEEEuEEEEEEEEEEE HObbY Horn Old Timer born 4I1LJLLJ- 4lOtLL OS 9 GAS MODEL RECORD SOEAREO 1941 BROOKLYN DODGER 50 Cabin 0NEWEST5 Retail S52950iNTROOUCTORY PRICE $3900 193t Record Breaker 96 $6956 1939 Zipper 54553 96 1930 Kloud King 63 $5236 1941 Brigidier 96 $4076 1941 Super Quaker 79 $7276 1940 So Long 50$3036 1936 Buccaneer 94 $5996 1939 Clipper MKi 72$4156 1937 Dallaire isa $75 16 l935Miss America 94 $7196 1941 Playboy Sr 90 $91 16 1941 Playboy Jr 54 $3116 1939 Powerhouse 94 $53 56 1940 Sailplane 79 $9476 1939 Trenton Terror 72 $4976 1940 Ranger 46$3196 1939 Korda Wake 44 $1916 l939Mercury 72 6 kits qualify SAM events PP 6 B/C feature highest quality machine cut 6 sanded parta Superior Competition sheet strip wood wire & window materiol Plans orig PP models easily convertible Sob R/C KITS Sailpianes Electric power Gas Hobby Horn SENSOAR Glider 70 5s $1000 Midway Model GNOME R/C Hand Launch Glider$2400 Jolly Models FLINGER R/C HLG 59 Span$2400 Midway Model PAST EOOIE Acrobatic /05 Elec$1909 Jolly Models ELECTRICUS Electric Gilder 05s$3250 Leisure PLAYBOY SR 67 Gear 05 Elect $3000 Astro ASTRO SPORT 37 Oirect 05 Elect $2259 Leisure WASP 37 Oirect 0$ Electrics$2200 Midway ULTRA MK IV 96 Geared 04 EP $3900 Midway FLYING QUAKER 94 40454 stroke $6476 4ks/Midway DENNY JR 72 Alum Cowel$6396 OL MAiM.. fl 17700fl anuneuc 196 FULL LINE OF ELECTRIC SYSTEMS 6 Parts Avail SHIPPING & HANDLING 04 Page CATALOGUE Up $900 add $150 $200 PP/lot Class $001 $2000 add $225 copy will sent $2001 $4500 add $300 freewhen requested $4501 57000 add $350 order over 07000 add $400 HOBBY HORN CA Addressees add 65 tao 15173 Moran St Send MO Visa/MCI#*Exp PO Box 2212 Check tallow up 30 Westminster Ca 92694 days CK clearance f7140939311 COO Exact Charges plus $150 Hdl ICash Only lAB Hr5 714 9951203] Taiwan copy 0S engine according Bill Works great No worry about trimming fingernails adjusting needle Bill also Said thought OS remote needle valve kits would work Hobby Shack Thunder Tiger engines value fingernails might want give kits some thought seems have lot said hobby magazines recent months about interference RC frequencies appears radios airplane frequencies being sold RC car boat enthusiasts creating Some problems also appears some con fusion about visual identification frequen cy using means colored streamers channel numbers displayed trans mitter George Myers contributing editor Model Aviations Radio Technique col unin urge readers safety column also read Georges column stay current whats happening field frequency con trol interference RC model aircraft risk stepping Georges turf however would like reprint letter concern ing RC frequency control received ago An always-present risk RC flier comes fellow club member may turn transmitter same frequency inadvertently because forgot follow flying field procedures deliberately because thought possession clip pin whatever device being used control indi vidual frequencies flying field fol lowing letter Dr Stephen Risik Huntingdon Valley PA describes situation could occur RC flying field Most RC clubs use clothespin method controlling frequency usage benefit familiar scheme usually something like transmitter may turned corresponding frequency pin attached plane shot down flier turning transmitter does have pin attached shooter held financi ally responsible repair replacement downed aircraft short shoot down youve bought itunless owner does wish part willing settle cost repairs financial responsibility usually includes radio damage well Usually System works well within small ish clubs everybody knows other fliers importantly friends However system can break down selfish flier comes scene Common courte sy required fliers frequency control system breaks down Picture Its busy day field Planes constantly air Fliers waiting pin tree frequency pins returned Got picture Well step selfish flier doesnt stand pin tree watches flier currentiy using frequency wants use fliers plane comes few touch-and-goes first touch hard prop hits ground stops engine embarrassedflier hands transmitter friend hold runs onto field get now-quiet bird Upon returning pits immediately Starts up again Ten seconds later selfish flier comes storming over crying have pin plane selfish flier wheat frequency pin transmitter According rules club fault lles first flier because did notice pin stolen transmitter Continued page 128 18Model Aviation two other modelers Jim Jessup Corwin Crowell have built some two three hundred models display equipped RC engines Ray RC flier also told story building absolute-scale Spirit St Louis fellow Texas cost $11000 three others have built replica airplanes museum flown before being placed display As Im old Army Air Corps vet B- 17 bombardier WV II built models 30s returned model ing 1965 flew FF years now build Scale models fly RC Yet never too old learn wealth modeling know-how San Diego Aero Space Museum amazing models exact-scale Jenny wingspan 60 70 inches uncovered display glass case Some man Illinois Ohio spent years building Jenny wasnt completed before death son doI Plug t * OPS Special plug U control free flight PC boats high nitro use$160 OPS RC-250 plug RC engines out tuned pipes 09 60 size $250 RC-300 spectatular RC plug ducted fans piped pattern engines racing boats andRC cars. $300 Glow Plugs Are Available Local Hobby Shop SCall Parts People 9m~* Box 26247 New Orleans LA 70186 242-5967 nated museum com pleted Gosh ever another article museum make sure covers models modelers Harry Sutherland Grand Junction CO PE Norman sad duty inform passing Mr PE Norman modeler extraordinare did much develop ing ducted-fan models technology talent like Peters will go living though gone through accomplishments devotion helping fellow modeler So long Peter aerodrome sky. Ernest P Melcher Redondo Beach CA British modeler PE Norman widely published own country US modeling magazines responding advertisers mention read about ModelAviation Safety/Preston Continued page 18 Never before fliers experience other flier removed pin anybodys trans mitter first asking Are done case selfish flier absconded pin much word owner transmitter pin stolen moral story two-fold First always assume some scoundrel lurking shadows just waiting put transmitter down can steal frequency pin Second take frequency pin somebodys transmitter telling own er youre asking shot down Please walt flier say finished frequency never assume flier will notice absence pin did himself remove transmitter PS Stephens letter stated wasnt plane crashed assume above factual account crash RC flying field Although letter concerns itself reimbursement value damage sustained crash think safety implications self-evident finish up months column have another flying field incident once points out owners transmitters OUTHEASTERN ~-- KIT SPECIFICATIONS Span66 Inches 820 Sq Inches Weight73/4834 Lbs ize Engines WIPipe 8 1984 NATS Winner KIT FEATURES 0 Fiberglass Fuselage & Belly Pan Removable Fiberglass Canopy iled Plans Finished Bulkheads ware Package Wing & Stabilizer Cores ed Control Surfaces & Stabilizer Skins TICK OFF TIMER Now Available1 4 0-20 Seconds Fuei shut off Flood Ott Auto rudder function Weight % oz Fuel line inciuded EXTRA FUEL LINETUBINGSO- ft DIRECT ORDER ONLY Send Cash Check MO COD $3 extra Calif 6% JOHN TATONE 62 BELHAVEN AVE DALY CITY CA 94015 128 Model Aviation Its Time Put U Letters Editor Continued page 125 Limited supply AUTOGYRO airB C- THM Model Specification Rotor Diameter63 Overall length exc rotors33 Approx Weight mci engine less RIG465 lbs Recommended Power45 60 Cu Radio Control ..4 channel THE WORLDS FIRST SCALE R/C AUTOGYRO KIT 4 Kit Contents kit includes virtually everything necessary build model except RIC engine paints adhesives RETAIL PRICE $24995 SALE PRICE$21995 r Add $250 Insurance handling enclose payment E Check/MD LII Please send E Visa E MasterCard [I]Exp Dateorder CQDHOBBIES Card No _________________________________ Add $200 PO BOX 421160 MIAMI FLA 33242 THANK YOU FOR YOUR ORDERPHONE 305 638-4197 0 whistles bells should ever-alert whenJerry inadvertently flipped throttle-reversinghot know primer coat using letter Jerry Swaim Bald-switch instead ailerons letterwhen finally asked myself what doing win Park CA tells what happened wasclosed statement now allhere taxiing 40-powered model out runwaycontrol surfaces will checked neces- friend took Vag up north add As always am taxiing check thesary corrected before engine startedwindshield yellow paint have top control surfaces make sure everything isSounds like good practice us followlocal pilot test-fly Vags setup working properly occasion Inotlcedthat Have safe monthCG must aftof 20% chord can ailerons working backwards No bigtest safely say 17-18% marked CG problem thought Ill just flip reversing John Preston 12235 Ti/den wood Dr Rock-on cabin knew Pipers setup worked switch transmitter everything will beyule MD 20852would OK model because just fine transmitter has six little______________________________________screwball Airknocker described last monththe switches flipped thoughtsame deal Its nice trim out level flight ailerons things started happening prettyPlane Talk/Winterat fast cruise throttle/power fast fire breather front end startedContinued page 28techniqueadding power climb taking off screaming still taxiway For-to descend Nice no problems chaps tunately luckwas plane shot offway rudder post top Crosspiecesforgot paved area grass finallyrun wild angles steel-tube fuselages dont really good pilots have quickie stopped ithave smooth bends go straight statlon topreflight on-the-spot game plan things go guess can figure out yourselves thatstation curved tubing under compression isnt tinued page 133 IQUAY BARKER MOOELB CoeNlic WINO-~II 14 Ga 0W1 100kW oO Nli100001 1OOkig 640 flyig fooO,ofl 70 00 00 Oil ooNNOW NONA EpOyOSiNNN PASO ONOt, 0015 py 011 000 1110100 50,NPINtI000 INN100011 0110Oi1di0g 707 10 11 1001010 570500 POlO 1000100 0110 flOodi 100 0010 000007 00 74 N 1j sanding easy No 14111 nch No 14222 inch $250$365 Add 20% fo postagei best results use Self Adhesive Sheet SandpaperNo glue No drying time Ideal special sanding shapes Adheres materjaf& 9sl 1 sheets Choice oi Medium Fine Super Fine SCea //4UI45 APPLIED DESIGN CORP Penn Street egundo CA 90245 November 1985 129 0070 0000105 NOne P05 000 lINt ocolol SOSh poOtOt