John Preston Safety512 Comes First Northampton St NW WashIngton DC 20015 column provided address Items concern regarding safety aspects model aviation activIties Content column however opInIon author does necessarily represent offidal position tie Academy Model Aeronautics Fly models proxim ity full-scale air craft Never Balsa pushrods revisited Some products promote safety CONFLICTS between full-scale aircraft mod els Periodicallybut frequently Im thankfulI receive reports readers about models trying share same piece sky full-scale aircraft recent such report came Bill Smith modeler Oxnard CA Bill US Navy jobs Command Safety Offi cer letter enclosed newspaper clipping LA Life section Camirillo Daily News captioned Unwelcome Visitor' read follows Traffic reporters Jorge Jarrin KABC-AM 790 Dick Morgan KFWB-AM 980 spot ted unusual dangerous sight early re cent morning looked out heli copter lifted off over Van Nuys bright yel low remote-controlled model airplane racing past 1300 ft could have knocked us down hit rotor tail rotor Morgan said Usually remotecontrol model airplane users pretty good Weve never problem before Soon after takeoff traffic copter usually flies pattern high above Sepulveda Dam Recreation Area theres field designated height-restricted remote-controlled model air planes copters fly direction avoid houses accordance noise-abatement mea sures gave guy benefit doubt made right-hand orbit 1300 ft twice made passes us about 30 ft Morgan said So notified tower Van Nuys airport police surprising because dont usually have problems Its sort thing happens Airport police investigated incident no arrests made letter Bill following remarks about incident newspaper clipping just another example small negligible percentage RC hobbyists going ruin everyone else never positive aspects hobby get atten tion some idiot playing chicken fullsize airplane helicopter gets publicity average citizen doesnt know about safe keep hobby about near-misses full-scale aircraft reason behind height restriction Sepulveda Basin model airport right under traffic pattern Van Nuys Airport busier air ports southern California midair lightplane would surely close RC field Se pulveda maybe others around country close proximity airports airport traffic areas know hard judge distances espe cially height model airplane think some sort gauge should developed similar ones used model rocketry figure Out height aircraft After using several times individual will able roughly judge models height better keep within height restrictions' About 12 years ago president RC club flew field located scant three miles perimeter fence surrounding Washington DCs Dulles International Airport field under flightpath airline traffic approaching three runways very conscious 400-ft height re striction recommended FAA RC model aircraft However occasion did have visit local sheriff due report fullscale aircraft Cessna 150 sighting model After incident attempted use kite show members just what model 400 ft looks like put length markers kites string let out until trigonometry could compute length kite string horizontal distance kite flier point immediately beneath kite height about 400 ft As best recall lot club members surprised low 400 ft really Since club still operating same field today guess have dutifully observing height restriction 400 ft readers have suggestions accu rately calculate measure models height please let know Ill publish fu ture column benefit others have enough problem keeping flying fields deliberately trying lose play ing cat-and-mouse full-scale air traffic Balsa pushrodsgood bad previous Safety columns June August 1989 1 have discussed letters readers concerning safety balsawood pushrods Such pushrods supplied number model kits several readers opinion should used believe used models pow ered engines 040 cid less should no problem use -in-sq balsawood rudder elevator pushrods installed correctly So what mean correct installation First dont fabricate pushrods soft wood Continued page 16 14 Model Aviation 1 t ThIS UY S&r UE WERE T OU 4o0-FOYr FLYINEr CEIL1N E POWER bra Blackhead Sport Engines lhlebra engines offer finest German engineering WV awide range size powerapplicationsforthe R/O hobbyist engines famous reliability lasting performance power spare great features like ball bearing supported crankshafts engines will power airplane helicopter levels performance youve thought about Blackhead series engines designed sport flyer looped scavenged engines extremely smooth running excellent throttle characteristics performance best theyre affordable #WE1O22RC Blackhead 40 #WE1O2ORC Blackhead 61 Available now through local hobby dealer Webra EngineOutputRPM-RangeDisplacement HPRPM/mon BoreStrokeWeightProp mmmmozSize 902000-15500 1452000-14000 6502100199910939x7 10x4 100024002200151611x711x8 Distributed Hobby Dynamics Distributors e 1-800-458-0241 PO Box 3726 Champaign IL 61826-3726 FAX 1-217-355-0058 AL BLUES CA getting down get protected CA mask Safety Plus mask will eliminate CA fumes epoxy polyester resin vapors air breath Lightweight easy breathing comfortable CA Mask $1595 Paint Mask $2045 See hobby dealer first doesnt have what need order direct Safety Plus PO Box 1173 Dept 12M Clinton Mississippi 39056 Call toll free 1-800-842-7233 Mississippi dial 601-924-9640 VISA MASTERCARD accepted COD add $250 shipping handling included Dealer Inquiries Invited find kit manufacturer has supplied pushrod stock appears too soft local hobby dealer may well exchange some harder material its going break bank have purchase better material Two readers recently wrote suggested methods stiffening balsawood pushrods John Deden Missouri City TX uses thin plywood stiffening may Id like put two cents balsa pushrods years used balsa pushrods problems models under 10 lbuntil about four years ago model 95-lb lowwing sport/Pattern type symmetrical wing airfoil subject snaps over top turned too sharply low airspeeds Over period some six nine months rudder elevator neutral required readjustment virtually weekend kept close tabs condition pushrod end connections horns No problems Finally after rather se vere crash over-the-top snap ground final cracked rear fuselage removed tail assembly pushrods found oncestraight hard-balsa rudder pushrod bowed about 34 Its overall length 20 same elevator pushrod latter bowed about inch cause may have stresses internal wood warping due high heat humidity Houston subsequent model another crash caused both rudder elevator pushrods shatter ap proximately middle lengths Slowly 40-watt light bulb began glow vacuum-formed head middle maxi mum bending point pushrod essentially column pinjointed end under compression Subse Continued page 18 ZIm SUNSHINE HOBBY READY TO FLY Call 1-800-45-TO FLY ACCFSSORIES INCLUDED PIPER CHEROKEE-40$12999 PIPER CHEROKEE-2510899 FOKKER E111-4011999 FANCY STICK-4011499 FANCY STICK-256999 CESSNA 172-2010899 CONDOR-40L11999 TERCEL-4512199 ENGINE NOT INCLUDED PIONEER CAR$6000 ENGINE INCLUDED 17221 South western Avenue Gardena California 90247 CONTACT us FOR THIS MONTHS SPECIAL 16 Model Aviation 40 Blackhead 61 Blackhead o flHUflMUflUflUUa HU H *,jo6 FLY pmveasiFUEL FROM KINGSWAYI PERFOR CE Speed 50 has become favorite among air plane helicopter modelers need powerful yet light engine essential Available both ringed ABC versions Webra Speed 50 has become industry standard others its class measured Speed 61 Heli center has track rec stands alone field helicopter aerobatics Smooth dependable power large heat sink head double ball bearing supported crankshaft schnuerle porting make Webra Speed Series choice champions #WE1025RC 50 Ringed #WE1O25ABC 50 ABC #WE1O25RCH 50 Ringed hell #WE1025ABCH 50 ABC hell #WE1O24RRH 61 Ringed hell #WE1O24RCH 61 ABC heli SpeedOutput RPM-Range EngineHPRPM/mon 50 Rngd 50 ABC 50 Hell ABC 50 Hell Rngd 61 Hell ABC 61 Hell Rngd 1502500-16000 1682500-16000 1682500-16000 1682500-16000 1962000-16000 1962000-16000 Available now through local hobby dealer Dmplcnint Bore cernmm 8302300 8302300 8302300 8302300 9952400 9952400 StrokeWeight mmoz 2000 2000 2000 2000 2200 2200 1270 1270 1376 1376 1675 1675 VD1 TM Hobby Dynamics Distributors ox 3726 Champaign IL 61826-3726 e 1-800-458-0241 1-217-355-0058 K RELIABLY WITH CRYSTALS FROM JAN ALL FREQUENCIES TRANSMIT & RECEIVE QUICK DELIVERY REASONABLE PRICES FOR FREE CATALOG CALL OR WRITE JAN CRYSTALS PO BOX 06017 FORT MYERS FL 33906 813 936-2397 Iw TOLL-FREE 1-800-237-3063 IN FLORIDA 1-800226-XTAL FAX ORDERS 1-813-9363750 quent pushrods balsa otherwise mostly use balsa now provided four doublers face epoxied place doublers fabricated /61 /16 plywood wide length batsa pushrod tn bad crash rods can still snap since using approach Ive no warped rods soggy controts due rod flex ureonty worn control horns Another reader Eugene Waters has simitar sotusion strengthening balsa pushrods margi nat strength uses different reinforcing material Gene Oak Ridge TN sent drawing showing epoxies strip crinoline full length of four faces A-in-sq balsa pushrod Crino line stiff cotton fabric can purchased dress fabric store years ago t used similar approach too lazy drive hobby store buy some harder A-in-sq balsa However used silk covering material glued Ambroid balsa cement think Genes suggestion better second important step correct installa tion balsa other material pushrod make sure doesnt rub another pushrod parts internal structure bulk heads fuselage couple readers wrote experi enced failures balsa pushrods wore because contact something fuse lage possible recommend installing pushrods fuselage before finishing cov ering operation all-sheeted fuselages leave bottom open until install servos empen nage tail pushrods can easily ob serve whats going inside operate controls Continued page 20 18 Model Aviation Webra Speed Engines T U U IF1 Box 1063 Lorain Ohio 44055 UPj Phone 216 282-8354 PEANUT SCALE Piper vagabond Piper Cub Stinson 125 W Outdoor kits each. $750 Light Indoor kits $795 OUTDOOR PEANUT Super Scale. $750 NEW Micro X Hornet P-30. $1395 SPORT SCALE PC-6 Porter Taylor Craft Stinson voyager Rubber 00 Power Kiss each. $850 SPORT MODELS An Embryo Model 18 Span designed winl beginners experts 0 HARD-TO-FIND ITEMS Early Bird Tissue Antique Aircraft$595 True Olde Japanese Tissue 10 3 colors$695 Japanese Tissue 12 6 colors$395 Microlite Silver$395 Microfilm $495 Glue $175 Solvent $150 Plan Service over 17 Scale Sport Scale & Peanut Scale Rubber Strip 020 thru 085 each $195 3/32 thru 5/32each $250 Winder 61 $595 Mark 161 $1295 Complete Line Brown 00 Motors Baiss Wood Outdoor & Indoor Sheets & Strips Add 10% Postage ostage $150 COMPLETE CATALOG $150 K reasons Pipe Dream perfect R C Trainer Size ge model aircraft just plain easier handle smaller models stable visible perform much like real aircraft Durability designed take kind abuse other trainers couldnt begin take Repairability. Pipe Dream makes recovering inevitable mistakes quick easy Fast Assembly. other trainers consume considerable amount leisure time assembly Pipe Dream ready fly just few evenings Versatility. good trainers Pipe Dream allows learn functional ailerons Adjustable wing dihedral permits performance upgrades skills im prove Plug-in wings detach seconds making Pipe Dream easier transport smaller trainers Learn fly sensible enjoyable way Pipe Dream Giant Scale Trainer Its better get off Pipe Dream nightmare detailed Info Pack send $200 Catalogs just $300 See Local Byron Dealer Today Full Line Byron Kits Accessories Fuels AETRO PLIGHT SYSTEMS Challenger Cobalt 4 cell 025 DireCt $ 7645 Geared Challenger Cobalt 5 cell 035 Direct $ 8920 Geared Challenger Cobalt 7cell 08 DIrect $10621 Geared Challenger Cobalt 12 cal IS Direct $14020 Geared Challenger Csbalt 14 cal 25 Direct $16570 Geared Challenger Cobalt 18 cat 40 Direct $19545 Geared Challenger Cobalt 24 cal 60 Direct $28471 Astro DC/DC Super Charger up 1028 cells Axtro AC/DC Charger ajrrent adust Autro DC/DC Charger Autro Electric Thrdllle Astro On-DO Motor Control Electronic AEQRIE Anderoos Power Pole Connector 4 housings /4 pins Gold Fin Moleo Connector Tamiya Connector HI-Flex Wire 30 na red & blad 16 GaJ240 Stren Daveys 30 Arrrp Meter t Micro Switch Harnesut 3/16 Flat Braid br Soldering BaSerles Heat Shrink Tubing Batteries 25 tsr 4SOAR 905 & 12005CR Flat Packs 3 tor ltO0AR Flat Packs 4 tsr BOSAR & 1200SCR Stacked Fuchs uOVfl ffflflFE flATTERY PACKS $ 9771 $11046 $12740 $18145 $16696 $21671 $8298 $5500 $3200 $5596 $3196 5200 /pr $210 /pr $150 /yr $200 $1995 $450 $050/fl $150/It $160/It 5165/5 t CELLS 4Cell 450nd$1950 SCell 450roA$2300 450AR $35065 6Cell 600roA$2920 7Cell ltOOreA$33I5 bOAR $395ea 6 Cell 900 roA $2960 7 Cell 960 ecA $3365 9005CR $4OSea 6 Cell l200rsA $2920 7Cell I200roA 53315 12005CR$39Sea packs wIred tlat packs t Fleece slIecOy desired contlectoro ELECTRIC POWER KITS MMC Ultra MK IV 08 Span SaIlplane tor 05 Gear53796 MMC Electric Playboy 67 Spas Old TOner tor 05 Gear$2600 Aatro Challenger 73 Span Sailplane torlts Geor$3250 EMD Electra Gilde II 73 Spas Sadtdase tot 0653100 EMD Thensic Traveler Sailplane 76 Spun tsr 0553100 EMD Sky Knight 44 Span Treiner br 05$2400 EMD Lightning 39 Span Acrobatic Spott Model tsr 05$2400 MMC Fast Eddie Aerobatic Spurt Model tsr 05$2400 u,- do-C 7 rc 400 . RerouarK 0100 Mt0UI VI SHIPPING & HANDLING76 Pugc CATALOGUE Up100800 add $200$200 pp/Out Class frce $801 $2000add$250wttcs rcquestcdreith ordcr $2001 $4500add$325 $4501 $7000add$375HOBBY ver $7000add$450HO CA Addressees add 6% tax Sued 3 Moran St [A] MO VISA / MC & EOP Date Box 2212 Check allow apIs 30 days tsrWestmnster Ca 92584 check clearance COD t charges plus $150 893-8311 handling Cash OnlyHrs Mon-Fri 9AM 5PM Before leaving subject pushrods let remind importance preflight spection Just two days ago watched videotape Piedmont now US Air Boeing 737 mak ing emergency landing because left main gear jammed Up position due wheel chock having left inside wheel well Preflight checks models important too Albert Antholz recently sent metal clevis nylon control horn seen about six hours operating elevator own design sport/Pattern model pin clevis worn less its original diameter hole horn almost twice its original di ameter Just like automobiles model airplane components wear out too pays make fre quent checks control linkages Product reviews Periodically manufacturers hobby products send samples wares because have some type safety feature No dont give plug column merely because received freebie men tion such product column its because believe does minimize another hazards modelers may face pur suit hobby discovered such prod uct arrived several months ago cleaning up den last week apolo gies Dave Abbe mailed product J-Tec Safe-Start engine testing stand What sets test stand apart others addition fitting rear its base accepts socket Ni-Starter McDan iel other brand wire equipped alli gator clip secured center connection fitting starting engine test stand alligator clip attached glow Continued page 22 old timer perfectly proportioned modeling Curtlss Robin 049 EngInes -Channel RIC 41 Wingspan ElectrIc Power Optional 62391 Ki Cr05 Onnv law lull scale alrcralt Ideally suited reodel ltlght appealing old Cartisa Robin born apruce end lines age beautitally propartioned tsr rubber electric glow engines Easy end tue build treinerllke purlorreence PlylIne Models Catalog hOG Phone 17031 2730093 MODELS INC FLYLINE Sax 2136 FaIrIes VIrgInia 22031 USA 20 Model Aviation SPECIFICATIONS Wing Span 83Channels 3 or4 Length 58WeIght 1014 lbs Power 60 sIze glow 40cc gas HGl Horn rohhy SpeclolOes plug Ni-Starter attached fitting rear stand permits engine started fear Ni-Starter shaking loose falling prop arc especially useful four-stroke engines have forward-facing glow plugs geometry may accept Ni-Starter opinion product has feature minimizes likelihood hand other object getting path rotating model air plane prop worthwhile purchase product have seen came mind examining above-mentioned test stand remote connection glow plug use model Scale modelers fabricate own remote connection glow plug cause dont want have nonscale hole engine cowling Such product safety de vice eliminates need reach close prop arc remove glow plug connector af ter starting engine anyone knows com mercially available remote glow plug connector please drop line editor remembers Model Products Corp PO Box 100 Alla muchy NJ 07820 made such device timeand maybe still Another product arrived mail some time ago came Performance Products Unlimited called Disc-Lock prop washer designed prevent propeller being kicked off crankshaft event backfire Disc-Lock patented design consist ing two washers having inclined cam face radial ridges other face use pair washers placed crank shaft cam faces adjacent another event backfire inclined cams act ramps make Disc-Lock thicker thus tight ening grip prop reason havent mentioned before now samples arrived last fall wanted able comment effectiveness However dont have four-stroke engines use test backfiring problem usu ally manifested type engine passed samples friend request try out However am still awaiting re sponse Meanwhile reader has used DiscLocks would care share opinion product Id appreciate hearing Yet another safety product found its way mailbox wraparound-style pair sun glasses distributed Safety Plus may have seen ads modeling press dont know about cannot fly model wear ing sunglasses Cheap brand-X sunglasses may block harmful ultraviolet radiation exposure could later life contributing fac tor cataracts Safety Plus sunglasses filter ultraviolet radiation conform ANSI Z87 1 standard addressing shatter-resistance glasses Im firm believer wearing eye protection starting tuning model engines So Howard Crispin AMA District IV VP few years ago Howard prop shatter break sunglasses believes could have lost sight eye wearing glasses Are quality sunglasses part models support equipment opinion should Have another safe month $226 ________ $299 _________ $375 ________ Power easy Starting power smooth take offs power intricate maneuvers Red Max makes engine come alive power performance never expected can have power Its phone call away Power today running power fully other _____100% money back guaran tee com pletely sat isfied reason Red Max has power better idle better wear char acteriStics _____other fuel 22 Model Aviation RED MAX 0 RED MAX 5 RED MAX 10 RED MAX 12 RED MAX 15 RED MAX 20 RED MAX 25 RED MAX 40 RED MAX 50 RED MAX80 RED MAX66 RED MAX FUEL Order Form CALL OR USE THIS HANDY ORDER FORM TO SPEED YOUR ORDER FILL IN QTY ON THE LEFT THE TOTAL ON THE RIGHT Freight free qts gals No hand ling charge Freight collect drums Deduct 3% prepay Mix qty Total qty deter mines price SC ordere add 5% sales tax Dealer club prices avail Accept credit cards checks end COD COD add $2 per cartonl Personal checks may held until cleared OTYFUELiGAL 4GAL24GAL600AL128GaI 84GAL 1TOTAL* ordered MIXTURE DRUM AMT RED MAX PREMIUM FUELI fuel beginners ft sport flyers should use Avaii synthetic castor bland *999*749*729$689*599*150 *1152*864$841$772$691*212 *1266*965$939$862*772*266 _______ *1372*1029*1002$919$823$301 _______ *1466*1084*1065$977$875*335 _______ RED MAX RACING FUEL Trophy winner planes boats ft cars two boat blends castor ok up 40% nitro _____$1775$1332$1296*1190*1066$464 *1965$1474$1435*1317*1179*841 _____$2539$1905*1884*1701*1524$774 *3922$2192*2133*1966$1783$839 ___*3306$2479$2413$2214$1983$1084 _____53497*2622$2552$2343$3998$1162 RED MAX4-CYCLE FUEL Eliminates detonatIon ft klckbeck 4-cycle engines smoother idle ft power 10-4 CYCLE*1383 $1022 *995 *913 *818*296 15-4CYCLE*1555 *1166 *1135 *1042 *933*375 RED MAX HELICOPTER FUEL Extremely smooth running axtra defoamer drk color special heavy oil heiicplre 10 Helicopter$1391 $1040 $1016 $932 $835 j $309 15 Helicopter$1583 $1187 $1155 $1050 $950 RED MAX PERFORMANCE FUELI High flash point heavy oil use tuned pipes ducted fan ft other heavy dty app 5 Performance$1200*900$876$804$720 10 Performance $1391*1043*1016$932$835 iSPerformance$1583$1187$1155$1080*950 RED MAX PATTERN FUEL Proven best fuel pattern engines using pumps tuned pipes 5 Pattern$1196$ 895 $ 870 $ 796 *695 10 Pattern$1375$1035 $1009 $ 925 *825 iSPattern$1575 $1176 $1145 $1050 *940 SUPER TIGER 3000 FUEL Beet fuel Super Tiger 20004000 engines _____SuperTiger3000 $1288 $965 $939 $862 *772$266 RED MAX DIESEL FUEL Superior diesel beck list popular demand customers Bail Bearings$1767 $1326 $1290 *1184 *1080 DieealPrBemigel8B7$1426$1390$1284*1180 SMOKER FLUID beet smoker fluid 2 4 cycle engines Smoker Fluid$1266 $965 $939 $862 $772$266 CUSTOM BLENDED FUEL INORDIENTS Available type engine use Call price Mm gallon boats-cars-heiicoptars-spaed-pattern-scale% scale-kaven-lgnition-st3000 PLEASE PRINT tiAMP BOX CTO1 CITY CTATC7Sfl cvoIAArmnr next week next year Red Maxs secret gredients keep engine last ing longer Grend Total responding advertIsers mention read about Model Aviation
Edition: Model Aviation - 1989/11
Page Numbers: 14, 16, 18, 20, 22
John Preston Safety512 Comes First Northampton St NW WashIngton DC 20015 column provided address Items concern regarding safety aspects model aviation activIties Content column however opInIon author does necessarily represent offidal position tie Academy Model Aeronautics Fly models proxim ity full-scale air craft Never Balsa pushrods revisited Some products promote safety CONFLICTS between full-scale aircraft mod els Periodicallybut frequently Im thankfulI receive reports readers about models trying share same piece sky full-scale aircraft recent such report came Bill Smith modeler Oxnard CA Bill US Navy jobs Command Safety Offi cer letter enclosed newspaper clipping LA Life section Camirillo Daily News captioned Unwelcome Visitor' read follows Traffic reporters Jorge Jarrin KABC-AM 790 Dick Morgan KFWB-AM 980 spot ted unusual dangerous sight early re cent morning looked out heli copter lifted off over Van Nuys bright yel low remote-controlled model airplane racing past 1300 ft could have knocked us down hit rotor tail rotor Morgan said Usually remotecontrol model airplane users pretty good Weve never problem before Soon after takeoff traffic copter usually flies pattern high above Sepulveda Dam Recreation Area theres field designated height-restricted remote-controlled model air planes copters fly direction avoid houses accordance noise-abatement mea sures gave guy benefit doubt made right-hand orbit 1300 ft twice made passes us about 30 ft Morgan said So notified tower Van Nuys airport police surprising because dont usually have problems Its sort thing happens Airport police investigated incident no arrests made letter Bill following remarks about incident newspaper clipping just another example small negligible percentage RC hobbyists going ruin everyone else never positive aspects hobby get atten tion some idiot playing chicken fullsize airplane helicopter gets publicity average citizen doesnt know about safe keep hobby about near-misses full-scale aircraft reason behind height restriction Sepulveda Basin model airport right under traffic pattern Van Nuys Airport busier air ports southern California midair lightplane would surely close RC field Se pulveda maybe others around country close proximity airports airport traffic areas know hard judge distances espe cially height model airplane think some sort gauge should developed similar ones used model rocketry figure Out height aircraft After using several times individual will able roughly judge models height better keep within height restrictions' About 12 years ago president RC club flew field located scant three miles perimeter fence surrounding Washington DCs Dulles International Airport field under flightpath airline traffic approaching three runways very conscious 400-ft height re striction recommended FAA RC model aircraft However occasion did have visit local sheriff due report fullscale aircraft Cessna 150 sighting model After incident attempted use kite show members just what model 400 ft looks like put length markers kites string let out until trigonometry could compute length kite string horizontal distance kite flier point immediately beneath kite height about 400 ft As best recall lot club members surprised low 400 ft really Since club still operating same field today guess have dutifully observing height restriction 400 ft readers have suggestions accu rately calculate measure models height please let know Ill publish fu ture column benefit others have enough problem keeping flying fields deliberately trying lose play ing cat-and-mouse full-scale air traffic Balsa pushrodsgood bad previous Safety columns June August 1989 1 have discussed letters readers concerning safety balsawood pushrods Such pushrods supplied number model kits several readers opinion should used believe used models pow ered engines 040 cid less should no problem use -in-sq balsawood rudder elevator pushrods installed correctly So what mean correct installation First dont fabricate pushrods soft wood Continued page 16 14 Model Aviation 1 t ThIS UY S&r UE WERE T OU 4o0-FOYr FLYINEr CEIL1N E POWER bra Blackhead Sport Engines lhlebra engines offer finest German engineering WV awide range size powerapplicationsforthe R/O hobbyist engines famous reliability lasting performance power spare great features like ball bearing supported crankshafts engines will power airplane helicopter levels performance youve thought about Blackhead series engines designed sport flyer looped scavenged engines extremely smooth running excellent throttle characteristics performance best theyre affordable #WE1O22RC Blackhead 40 #WE1O2ORC Blackhead 61 Available now through local hobby dealer Webra EngineOutputRPM-RangeDisplacement HPRPM/mon BoreStrokeWeightProp mmmmozSize 902000-15500 1452000-14000 6502100199910939x7 10x4 100024002200151611x711x8 Distributed Hobby Dynamics Distributors e 1-800-458-0241 PO Box 3726 Champaign IL 61826-3726 FAX 1-217-355-0058 AL BLUES CA getting down get protected CA mask Safety Plus mask will eliminate CA fumes epoxy polyester resin vapors air breath Lightweight easy breathing comfortable CA Mask $1595 Paint Mask $2045 See hobby dealer first doesnt have what need order direct Safety Plus PO Box 1173 Dept 12M Clinton Mississippi 39056 Call toll free 1-800-842-7233 Mississippi dial 601-924-9640 VISA MASTERCARD accepted COD add $250 shipping handling included Dealer Inquiries Invited find kit manufacturer has supplied pushrod stock appears too soft local hobby dealer may well exchange some harder material its going break bank have purchase better material Two readers recently wrote suggested methods stiffening balsawood pushrods John Deden Missouri City TX uses thin plywood stiffening may Id like put two cents balsa pushrods years used balsa pushrods problems models under 10 lbuntil about four years ago model 95-lb lowwing sport/Pattern type symmetrical wing airfoil subject snaps over top turned too sharply low airspeeds Over period some six nine months rudder elevator neutral required readjustment virtually weekend kept close tabs condition pushrod end connections horns No problems Finally after rather se vere crash over-the-top snap ground final cracked rear fuselage removed tail assembly pushrods found oncestraight hard-balsa rudder pushrod bowed about 34 Its overall length 20 same elevator pushrod latter bowed about inch cause may have stresses internal wood warping due high heat humidity Houston subsequent model another crash caused both rudder elevator pushrods shatter ap proximately middle lengths Slowly 40-watt light bulb began glow vacuum-formed head middle maxi mum bending point pushrod essentially column pinjointed end under compression Subse Continued page 18 ZIm SUNSHINE HOBBY READY TO FLY Call 1-800-45-TO FLY ACCFSSORIES INCLUDED PIPER CHEROKEE-40$12999 PIPER CHEROKEE-2510899 FOKKER E111-4011999 FANCY STICK-4011499 FANCY STICK-256999 CESSNA 172-2010899 CONDOR-40L11999 TERCEL-4512199 ENGINE NOT INCLUDED PIONEER CAR$6000 ENGINE INCLUDED 17221 South western Avenue Gardena California 90247 CONTACT us FOR THIS MONTHS SPECIAL 16 Model Aviation 40 Blackhead 61 Blackhead o flHUflMUflUflUUa HU H *,jo6 FLY pmveasiFUEL FROM KINGSWAYI PERFOR CE Speed 50 has become favorite among air plane helicopter modelers need powerful yet light engine essential Available both ringed ABC versions Webra Speed 50 has become industry standard others its class measured Speed 61 Heli center has track rec stands alone field helicopter aerobatics Smooth dependable power large heat sink head double ball bearing supported crankshaft schnuerle porting make Webra Speed Series choice champions #WE1025RC 50 Ringed #WE1O25ABC 50 ABC #WE1O25RCH 50 Ringed hell #WE1025ABCH 50 ABC hell #WE1O24RRH 61 Ringed hell #WE1O24RCH 61 ABC heli SpeedOutput RPM-Range EngineHPRPM/mon 50 Rngd 50 ABC 50 Hell ABC 50 Hell Rngd 61 Hell ABC 61 Hell Rngd 1502500-16000 1682500-16000 1682500-16000 1682500-16000 1962000-16000 1962000-16000 Available now through local hobby dealer Dmplcnint Bore cernmm 8302300 8302300 8302300 8302300 9952400 9952400 StrokeWeight mmoz 2000 2000 2000 2000 2200 2200 1270 1270 1376 1376 1675 1675 VD1 TM Hobby Dynamics Distributors ox 3726 Champaign IL 61826-3726 e 1-800-458-0241 1-217-355-0058 K RELIABLY WITH CRYSTALS FROM JAN ALL FREQUENCIES TRANSMIT & RECEIVE QUICK DELIVERY REASONABLE PRICES FOR FREE CATALOG CALL OR WRITE JAN CRYSTALS PO BOX 06017 FORT MYERS FL 33906 813 936-2397 Iw TOLL-FREE 1-800-237-3063 IN FLORIDA 1-800226-XTAL FAX ORDERS 1-813-9363750 quent pushrods balsa otherwise mostly use balsa now provided four doublers face epoxied place doublers fabricated /61 /16 plywood wide length batsa pushrod tn bad crash rods can still snap since using approach Ive no warped rods soggy controts due rod flex ureonty worn control horns Another reader Eugene Waters has simitar sotusion strengthening balsa pushrods margi nat strength uses different reinforcing material Gene Oak Ridge TN sent drawing showing epoxies strip crinoline full length of four faces A-in-sq balsa pushrod Crino line stiff cotton fabric can purchased dress fabric store years ago t used similar approach too lazy drive hobby store buy some harder A-in-sq balsa However used silk covering material glued Ambroid balsa cement think Genes suggestion better second important step correct installa tion balsa other material pushrod make sure doesnt rub another pushrod parts internal structure bulk heads fuselage couple readers wrote experi enced failures balsa pushrods wore because contact something fuse lage possible recommend installing pushrods fuselage before finishing cov ering operation all-sheeted fuselages leave bottom open until install servos empen nage tail pushrods can easily ob serve whats going inside operate controls Continued page 20 18 Model Aviation Webra Speed Engines T U U IF1 Box 1063 Lorain Ohio 44055 UPj Phone 216 282-8354 PEANUT SCALE Piper vagabond Piper Cub Stinson 125 W Outdoor kits each. $750 Light Indoor kits $795 OUTDOOR PEANUT Super Scale. $750 NEW Micro X Hornet P-30. $1395 SPORT SCALE PC-6 Porter Taylor Craft Stinson voyager Rubber 00 Power Kiss each. $850 SPORT MODELS An Embryo Model 18 Span designed winl beginners experts 0 HARD-TO-FIND ITEMS Early Bird Tissue Antique Aircraft$595 True Olde Japanese Tissue 10 3 colors$695 Japanese Tissue 12 6 colors$395 Microlite Silver$395 Microfilm $495 Glue $175 Solvent $150 Plan Service over 17 Scale Sport Scale & Peanut Scale Rubber Strip 020 thru 085 each $195 3/32 thru 5/32each $250 Winder 61 $595 Mark 161 $1295 Complete Line Brown 00 Motors Baiss Wood Outdoor & Indoor Sheets & Strips Add 10% Postage ostage $150 COMPLETE CATALOG $150 K reasons Pipe Dream perfect R C Trainer Size ge model aircraft just plain easier handle smaller models stable visible perform much like real aircraft Durability designed take kind abuse other trainers couldnt begin take Repairability. Pipe Dream makes recovering inevitable mistakes quick easy Fast Assembly. other trainers consume considerable amount leisure time assembly Pipe Dream ready fly just few evenings Versatility. good trainers Pipe Dream allows learn functional ailerons Adjustable wing dihedral permits performance upgrades skills im prove Plug-in wings detach seconds making Pipe Dream easier transport smaller trainers Learn fly sensible enjoyable way Pipe Dream Giant Scale Trainer Its better get off Pipe Dream nightmare detailed Info Pack send $200 Catalogs just $300 See Local Byron Dealer Today Full Line Byron Kits Accessories Fuels AETRO PLIGHT SYSTEMS Challenger Cobalt 4 cell 025 DireCt $ 7645 Geared Challenger Cobalt 5 cell 035 Direct $ 8920 Geared Challenger Cobalt 7cell 08 DIrect $10621 Geared Challenger Cobalt 12 cal IS Direct $14020 Geared Challenger Csbalt 14 cal 25 Direct $16570 Geared Challenger Cobalt 18 cat 40 Direct $19545 Geared Challenger Cobalt 24 cal 60 Direct $28471 Astro DC/DC Super Charger up 1028 cells Axtro AC/DC Charger ajrrent adust Autro DC/DC Charger Autro Electric Thrdllle Astro On-DO Motor Control Electronic AEQRIE Anderoos Power Pole Connector 4 housings /4 pins Gold Fin Moleo Connector Tamiya Connector HI-Flex Wire 30 na red & blad 16 GaJ240 Stren Daveys 30 Arrrp Meter t Micro Switch Harnesut 3/16 Flat Braid br Soldering BaSerles Heat Shrink Tubing Batteries 25 tsr 4SOAR 905 & 12005CR Flat Packs 3 tor ltO0AR Flat Packs 4 tsr BOSAR & 1200SCR Stacked Fuchs uOVfl ffflflFE flATTERY PACKS $ 9771 $11046 $12740 $18145 $16696 $21671 $8298 $5500 $3200 $5596 $3196 5200 /pr $210 /pr $150 /yr $200 $1995 $450 $050/fl $150/It $160/It 5165/5 t CELLS 4Cell 450nd$1950 SCell 450roA$2300 450AR $35065 6Cell 600roA$2920 7Cell ltOOreA$33I5 bOAR $395ea 6 Cell 900 roA $2960 7 Cell 960 ecA $3365 9005CR $4OSea 6 Cell l200rsA $2920 7Cell I200roA 53315 12005CR$39Sea packs wIred tlat packs t Fleece slIecOy desired contlectoro ELECTRIC POWER KITS MMC Ultra MK IV 08 Span SaIlplane tor 05 Gear53796 MMC Electric Playboy 67 Spas Old TOner tor 05 Gear$2600 Aatro Challenger 73 Span Sailplane torlts Geor$3250 EMD Electra Gilde II 73 Spas Sadtdase tot 0653100 EMD Thensic Traveler Sailplane 76 Spun tsr 0553100 EMD Sky Knight 44 Span Treiner br 05$2400 EMD Lightning 39 Span Acrobatic Spott Model tsr 05$2400 MMC Fast Eddie Aerobatic Spurt Model tsr 05$2400 u,- do-C 7 rc 400 . RerouarK 0100 Mt0UI VI SHIPPING & HANDLING76 Pugc CATALOGUE Up100800 add $200$200 pp/Out Class frce $801 $2000add$250wttcs rcquestcdreith ordcr $2001 $4500add$325 $4501 $7000add$375HOBBY ver $7000add$450HO CA Addressees add 6% tax Sued 3 Moran St [A] MO VISA / MC & EOP Date Box 2212 Check allow apIs 30 days tsrWestmnster Ca 92584 check clearance COD t charges plus $150 893-8311 handling Cash OnlyHrs Mon-Fri 9AM 5PM Before leaving subject pushrods let remind importance preflight spection Just two days ago watched videotape Piedmont now US Air Boeing 737 mak ing emergency landing because left main gear jammed Up position due wheel chock having left inside wheel well Preflight checks models important too Albert Antholz recently sent metal clevis nylon control horn seen about six hours operating elevator own design sport/Pattern model pin clevis worn less its original diameter hole horn almost twice its original di ameter Just like automobiles model airplane components wear out too pays make fre quent checks control linkages Product reviews Periodically manufacturers hobby products send samples wares because have some type safety feature No dont give plug column merely because received freebie men tion such product column its because believe does minimize another hazards modelers may face pur suit hobby discovered such prod uct arrived several months ago cleaning up den last week apolo gies Dave Abbe mailed product J-Tec Safe-Start engine testing stand What sets test stand apart others addition fitting rear its base accepts socket Ni-Starter McDan iel other brand wire equipped alli gator clip secured center connection fitting starting engine test stand alligator clip attached glow Continued page 22 old timer perfectly proportioned modeling Curtlss Robin 049 EngInes -Channel RIC 41 Wingspan ElectrIc Power Optional 62391 Ki Cr05 Onnv law lull scale alrcralt Ideally suited reodel ltlght appealing old Cartisa Robin born apruce end lines age beautitally propartioned tsr rubber electric glow engines Easy end tue build treinerllke purlorreence PlylIne Models Catalog hOG Phone 17031 2730093 MODELS INC FLYLINE Sax 2136 FaIrIes VIrgInia 22031 USA 20 Model Aviation SPECIFICATIONS Wing Span 83Channels 3 or4 Length 58WeIght 1014 lbs Power 60 sIze glow 40cc gas HGl Horn rohhy SpeclolOes plug Ni-Starter attached fitting rear stand permits engine started fear Ni-Starter shaking loose falling prop arc especially useful four-stroke engines have forward-facing glow plugs geometry may accept Ni-Starter opinion product has feature minimizes likelihood hand other object getting path rotating model air plane prop worthwhile purchase product have seen came mind examining above-mentioned test stand remote connection glow plug use model Scale modelers fabricate own remote connection glow plug cause dont want have nonscale hole engine cowling Such product safety de vice eliminates need reach close prop arc remove glow plug connector af ter starting engine anyone knows com mercially available remote glow plug connector please drop line editor remembers Model Products Corp PO Box 100 Alla muchy NJ 07820 made such device timeand maybe still Another product arrived mail some time ago came Performance Products Unlimited called Disc-Lock prop washer designed prevent propeller being kicked off crankshaft event backfire Disc-Lock patented design consist ing two washers having inclined cam face radial ridges other face use pair washers placed crank shaft cam faces adjacent another event backfire inclined cams act ramps make Disc-Lock thicker thus tight ening grip prop reason havent mentioned before now samples arrived last fall wanted able comment effectiveness However dont have four-stroke engines use test backfiring problem usu ally manifested type engine passed samples friend request try out However am still awaiting re sponse Meanwhile reader has used DiscLocks would care share opinion product Id appreciate hearing Yet another safety product found its way mailbox wraparound-style pair sun glasses distributed Safety Plus may have seen ads modeling press dont know about cannot fly model wear ing sunglasses Cheap brand-X sunglasses may block harmful ultraviolet radiation exposure could later life contributing fac tor cataracts Safety Plus sunglasses filter ultraviolet radiation conform ANSI Z87 1 standard addressing shatter-resistance glasses Im firm believer wearing eye protection starting tuning model engines So Howard Crispin AMA District IV VP few years ago Howard prop shatter break sunglasses believes could have lost sight eye wearing glasses Are quality sunglasses part models support equipment opinion should Have another safe month $226 ________ $299 _________ $375 ________ Power easy Starting power smooth take offs power intricate maneuvers Red Max makes engine come alive power performance never expected can have power Its phone call away Power today running power fully other _____100% money back guaran tee com pletely sat isfied reason Red Max has power better idle better wear char acteriStics _____other fuel 22 Model Aviation RED MAX 0 RED MAX 5 RED MAX 10 RED MAX 12 RED MAX 15 RED MAX 20 RED MAX 25 RED MAX 40 RED MAX 50 RED MAX80 RED MAX66 RED MAX FUEL Order Form CALL OR USE THIS HANDY ORDER FORM TO SPEED YOUR ORDER FILL IN QTY ON THE LEFT THE TOTAL ON THE RIGHT Freight free qts gals No hand ling charge Freight collect drums Deduct 3% prepay Mix qty Total qty deter mines price SC ordere add 5% sales tax Dealer club prices avail Accept credit cards checks end COD COD add $2 per cartonl Personal checks may held until cleared OTYFUELiGAL 4GAL24GAL600AL128GaI 84GAL 1TOTAL* ordered MIXTURE DRUM AMT RED MAX PREMIUM FUELI fuel beginners ft sport flyers should use Avaii synthetic castor bland *999*749*729$689*599*150 *1152*864$841$772$691*212 *1266*965$939$862*772*266 _______ *1372*1029*1002$919$823$301 _______ *1466*1084*1065$977$875*335 _______ RED MAX RACING FUEL Trophy winner planes boats ft cars two boat blends castor ok up 40% nitro _____$1775$1332$1296*1190*1066$464 *1965$1474$1435*1317*1179*841 _____$2539$1905*1884*1701*1524$774 *3922$2192*2133*1966$1783$839 ___*3306$2479$2413$2214$1983$1084 _____53497*2622$2552$2343$3998$1162 RED MAX4-CYCLE FUEL Eliminates detonatIon ft klckbeck 4-cycle engines smoother idle ft power 10-4 CYCLE*1383 $1022 *995 *913 *818*296 15-4CYCLE*1555 *1166 *1135 *1042 *933*375 RED MAX HELICOPTER FUEL Extremely smooth running axtra defoamer drk color special heavy oil heiicplre 10 Helicopter$1391 $1040 $1016 $932 $835 j $309 15 Helicopter$1583 $1187 $1155 $1050 $950 RED MAX PERFORMANCE FUELI High flash point heavy oil use tuned pipes ducted fan ft other heavy dty app 5 Performance$1200*900$876$804$720 10 Performance $1391*1043*1016$932$835 iSPerformance$1583$1187$1155$1080*950 RED MAX PATTERN FUEL Proven best fuel pattern engines using pumps tuned pipes 5 Pattern$1196$ 895 $ 870 $ 796 *695 10 Pattern$1375$1035 $1009 $ 925 *825 iSPattern$1575 $1176 $1145 $1050 *940 SUPER TIGER 3000 FUEL Beet fuel Super Tiger 20004000 engines _____SuperTiger3000 $1288 $965 $939 $862 *772$266 RED MAX DIESEL FUEL Superior diesel beck list popular demand customers Bail Bearings$1767 $1326 $1290 *1184 *1080 DieealPrBemigel8B7$1426$1390$1284*1180 SMOKER FLUID beet smoker fluid 2 4 cycle engines Smoker Fluid$1266 $965 $939 $862 $772$266 CUSTOM BLENDED FUEL INORDIENTS Available type engine use Call price Mm gallon boats-cars-heiicoptars-spaed-pattern-scale% scale-kaven-lgnition-st3000 PLEASE PRINT tiAMP BOX CTO1 CITY CTATC7Sfl cvoIAArmnr next week next year Red Maxs secret gredients keep engine last ing longer Grend Total responding advertIsers mention read about Model Aviation
Edition: Model Aviation - 1989/11
Page Numbers: 14, 16, 18, 20, 22
John Preston Safety512 Comes First Northampton St NW WashIngton DC 20015 column provided address Items concern regarding safety aspects model aviation activIties Content column however opInIon author does necessarily represent offidal position tie Academy Model Aeronautics Fly models proxim ity full-scale air craft Never Balsa pushrods revisited Some products promote safety CONFLICTS between full-scale aircraft mod els Periodicallybut frequently Im thankfulI receive reports readers about models trying share same piece sky full-scale aircraft recent such report came Bill Smith modeler Oxnard CA Bill US Navy jobs Command Safety Offi cer letter enclosed newspaper clipping LA Life section Camirillo Daily News captioned Unwelcome Visitor' read follows Traffic reporters Jorge Jarrin KABC-AM 790 Dick Morgan KFWB-AM 980 spot ted unusual dangerous sight early re cent morning looked out heli copter lifted off over Van Nuys bright yel low remote-controlled model airplane racing past 1300 ft could have knocked us down hit rotor tail rotor Morgan said Usually remotecontrol model airplane users pretty good Weve never problem before Soon after takeoff traffic copter usually flies pattern high above Sepulveda Dam Recreation Area theres field designated height-restricted remote-controlled model air planes copters fly direction avoid houses accordance noise-abatement mea sures gave guy benefit doubt made right-hand orbit 1300 ft twice made passes us about 30 ft Morgan said So notified tower Van Nuys airport police surprising because dont usually have problems Its sort thing happens Airport police investigated incident no arrests made letter Bill following remarks about incident newspaper clipping just another example small negligible percentage RC hobbyists going ruin everyone else never positive aspects hobby get atten tion some idiot playing chicken fullsize airplane helicopter gets publicity average citizen doesnt know about safe keep hobby about near-misses full-scale aircraft reason behind height restriction Sepulveda Basin model airport right under traffic pattern Van Nuys Airport busier air ports southern California midair lightplane would surely close RC field Se pulveda maybe others around country close proximity airports airport traffic areas know hard judge distances espe cially height model airplane think some sort gauge should developed similar ones used model rocketry figure Out height aircraft After using several times individual will able roughly judge models height better keep within height restrictions' About 12 years ago president RC club flew field located scant three miles perimeter fence surrounding Washington DCs Dulles International Airport field under flightpath airline traffic approaching three runways very conscious 400-ft height re striction recommended FAA RC model aircraft However occasion did have visit local sheriff due report fullscale aircraft Cessna 150 sighting model After incident attempted use kite show members just what model 400 ft looks like put length markers kites string let out until trigonometry could compute length kite string horizontal distance kite flier point immediately beneath kite height about 400 ft As best recall lot club members surprised low 400 ft really Since club still operating same field today guess have dutifully observing height restriction 400 ft readers have suggestions accu rately calculate measure models height please let know Ill publish fu ture column benefit others have enough problem keeping flying fields deliberately trying lose play ing cat-and-mouse full-scale air traffic Balsa pushrodsgood bad previous Safety columns June August 1989 1 have discussed letters readers concerning safety balsawood pushrods Such pushrods supplied number model kits several readers opinion should used believe used models pow ered engines 040 cid less should no problem use -in-sq balsawood rudder elevator pushrods installed correctly So what mean correct installation First dont fabricate pushrods soft wood Continued page 16 14 Model Aviation 1 t ThIS UY S&r UE WERE T OU 4o0-FOYr FLYINEr CEIL1N E POWER bra Blackhead Sport Engines lhlebra engines offer finest German engineering WV awide range size powerapplicationsforthe R/O hobbyist engines famous reliability lasting performance power spare great features like ball bearing supported crankshafts engines will power airplane helicopter levels performance youve thought about Blackhead series engines designed sport flyer looped scavenged engines extremely smooth running excellent throttle characteristics performance best theyre affordable #WE1O22RC Blackhead 40 #WE1O2ORC Blackhead 61 Available now through local hobby dealer Webra EngineOutputRPM-RangeDisplacement HPRPM/mon BoreStrokeWeightProp mmmmozSize 902000-15500 1452000-14000 6502100199910939x7 10x4 100024002200151611x711x8 Distributed Hobby Dynamics Distributors e 1-800-458-0241 PO Box 3726 Champaign IL 61826-3726 FAX 1-217-355-0058 AL BLUES CA getting down get protected CA mask Safety Plus mask will eliminate CA fumes epoxy polyester resin vapors air breath Lightweight easy breathing comfortable CA Mask $1595 Paint Mask $2045 See hobby dealer first doesnt have what need order direct Safety Plus PO Box 1173 Dept 12M Clinton Mississippi 39056 Call toll free 1-800-842-7233 Mississippi dial 601-924-9640 VISA MASTERCARD accepted COD add $250 shipping handling included Dealer Inquiries Invited find kit manufacturer has supplied pushrod stock appears too soft local hobby dealer may well exchange some harder material its going break bank have purchase better material Two readers recently wrote suggested methods stiffening balsawood pushrods John Deden Missouri City TX uses thin plywood stiffening may Id like put two cents balsa pushrods years used balsa pushrods problems models under 10 lbuntil about four years ago model 95-lb lowwing sport/Pattern type symmetrical wing airfoil subject snaps over top turned too sharply low airspeeds Over period some six nine months rudder elevator neutral required readjustment virtually weekend kept close tabs condition pushrod end connections horns No problems Finally after rather se vere crash over-the-top snap ground final cracked rear fuselage removed tail assembly pushrods found oncestraight hard-balsa rudder pushrod bowed about 34 Its overall length 20 same elevator pushrod latter bowed about inch cause may have stresses internal wood warping due high heat humidity Houston subsequent model another crash caused both rudder elevator pushrods shatter ap proximately middle lengths Slowly 40-watt light bulb began glow vacuum-formed head middle maxi mum bending point pushrod essentially column pinjointed end under compression Subse Continued page 18 ZIm SUNSHINE HOBBY READY TO FLY Call 1-800-45-TO FLY ACCFSSORIES INCLUDED PIPER CHEROKEE-40$12999 PIPER CHEROKEE-2510899 FOKKER E111-4011999 FANCY STICK-4011499 FANCY STICK-256999 CESSNA 172-2010899 CONDOR-40L11999 TERCEL-4512199 ENGINE NOT INCLUDED PIONEER CAR$6000 ENGINE INCLUDED 17221 South western Avenue Gardena California 90247 CONTACT us FOR THIS MONTHS SPECIAL 16 Model Aviation 40 Blackhead 61 Blackhead o flHUflMUflUflUUa HU H *,jo6 FLY pmveasiFUEL FROM KINGSWAYI PERFOR CE Speed 50 has become favorite among air plane helicopter modelers need powerful yet light engine essential Available both ringed ABC versions Webra Speed 50 has become industry standard others its class measured Speed 61 Heli center has track rec stands alone field helicopter aerobatics Smooth dependable power large heat sink head double ball bearing supported crankshaft schnuerle porting make Webra Speed Series choice champions #WE1025RC 50 Ringed #WE1O25ABC 50 ABC #WE1O25RCH 50 Ringed hell #WE1025ABCH 50 ABC hell #WE1O24RRH 61 Ringed hell #WE1O24RCH 61 ABC heli SpeedOutput RPM-Range EngineHPRPM/mon 50 Rngd 50 ABC 50 Hell ABC 50 Hell Rngd 61 Hell ABC 61 Hell Rngd 1502500-16000 1682500-16000 1682500-16000 1682500-16000 1962000-16000 1962000-16000 Available now through local hobby dealer Dmplcnint Bore cernmm 8302300 8302300 8302300 8302300 9952400 9952400 StrokeWeight mmoz 2000 2000 2000 2000 2200 2200 1270 1270 1376 1376 1675 1675 VD1 TM Hobby Dynamics Distributors ox 3726 Champaign IL 61826-3726 e 1-800-458-0241 1-217-355-0058 K RELIABLY WITH CRYSTALS FROM JAN ALL FREQUENCIES TRANSMIT & RECEIVE QUICK DELIVERY REASONABLE PRICES FOR FREE CATALOG CALL OR WRITE JAN CRYSTALS PO BOX 06017 FORT MYERS FL 33906 813 936-2397 Iw TOLL-FREE 1-800-237-3063 IN FLORIDA 1-800226-XTAL FAX ORDERS 1-813-9363750 quent pushrods balsa otherwise mostly use balsa now provided four doublers face epoxied place doublers fabricated /61 /16 plywood wide length batsa pushrod tn bad crash rods can still snap since using approach Ive no warped rods soggy controts due rod flex ureonty worn control horns Another reader Eugene Waters has simitar sotusion strengthening balsa pushrods margi nat strength uses different reinforcing material Gene Oak Ridge TN sent drawing showing epoxies strip crinoline full length of four faces A-in-sq balsa pushrod Crino line stiff cotton fabric can purchased dress fabric store years ago t used similar approach too lazy drive hobby store buy some harder A-in-sq balsa However used silk covering material glued Ambroid balsa cement think Genes suggestion better second important step correct installa tion balsa other material pushrod make sure doesnt rub another pushrod parts internal structure bulk heads fuselage couple readers wrote experi enced failures balsa pushrods wore because contact something fuse lage possible recommend installing pushrods fuselage before finishing cov ering operation all-sheeted fuselages leave bottom open until install servos empen nage tail pushrods can easily ob serve whats going inside operate controls Continued page 20 18 Model Aviation Webra Speed Engines T U U IF1 Box 1063 Lorain Ohio 44055 UPj Phone 216 282-8354 PEANUT SCALE Piper vagabond Piper Cub Stinson 125 W Outdoor kits each. $750 Light Indoor kits $795 OUTDOOR PEANUT Super Scale. $750 NEW Micro X Hornet P-30. $1395 SPORT SCALE PC-6 Porter Taylor Craft Stinson voyager Rubber 00 Power Kiss each. $850 SPORT MODELS An Embryo Model 18 Span designed winl beginners experts 0 HARD-TO-FIND ITEMS Early Bird Tissue Antique Aircraft$595 True Olde Japanese Tissue 10 3 colors$695 Japanese Tissue 12 6 colors$395 Microlite Silver$395 Microfilm $495 Glue $175 Solvent $150 Plan Service over 17 Scale Sport Scale & Peanut Scale Rubber Strip 020 thru 085 each $195 3/32 thru 5/32each $250 Winder 61 $595 Mark 161 $1295 Complete Line Brown 00 Motors Baiss Wood Outdoor & Indoor Sheets & Strips Add 10% Postage ostage $150 COMPLETE CATALOG $150 K reasons Pipe Dream perfect R C Trainer Size ge model aircraft just plain easier handle smaller models stable visible perform much like real aircraft Durability designed take kind abuse other trainers couldnt begin take Repairability. Pipe Dream makes recovering inevitable mistakes quick easy Fast Assembly. other trainers consume considerable amount leisure time assembly Pipe Dream ready fly just few evenings Versatility. good trainers Pipe Dream allows learn functional ailerons Adjustable wing dihedral permits performance upgrades skills im prove Plug-in wings detach seconds making Pipe Dream easier transport smaller trainers Learn fly sensible enjoyable way Pipe Dream Giant Scale Trainer Its better get off Pipe Dream nightmare detailed Info Pack send $200 Catalogs just $300 See Local Byron Dealer Today Full Line Byron Kits Accessories Fuels AETRO PLIGHT SYSTEMS Challenger Cobalt 4 cell 025 DireCt $ 7645 Geared Challenger Cobalt 5 cell 035 Direct $ 8920 Geared Challenger Cobalt 7cell 08 DIrect $10621 Geared Challenger Cobalt 12 cal IS Direct $14020 Geared Challenger Csbalt 14 cal 25 Direct $16570 Geared Challenger Cobalt 18 cat 40 Direct $19545 Geared Challenger Cobalt 24 cal 60 Direct $28471 Astro DC/DC Super Charger up 1028 cells Axtro AC/DC Charger ajrrent adust Autro DC/DC Charger Autro Electric Thrdllle Astro On-DO Motor Control Electronic AEQRIE Anderoos Power Pole Connector 4 housings /4 pins Gold Fin Moleo Connector Tamiya Connector HI-Flex Wire 30 na red & blad 16 GaJ240 Stren Daveys 30 Arrrp Meter t Micro Switch Harnesut 3/16 Flat Braid br Soldering BaSerles Heat Shrink Tubing Batteries 25 tsr 4SOAR 905 & 12005CR Flat Packs 3 tor ltO0AR Flat Packs 4 tsr BOSAR & 1200SCR Stacked Fuchs uOVfl ffflflFE flATTERY PACKS $ 9771 $11046 $12740 $18145 $16696 $21671 $8298 $5500 $3200 $5596 $3196 5200 /pr $210 /pr $150 /yr $200 $1995 $450 $050/fl $150/It $160/It 5165/5 t CELLS 4Cell 450nd$1950 SCell 450roA$2300 450AR $35065 6Cell 600roA$2920 7Cell ltOOreA$33I5 bOAR $395ea 6 Cell 900 roA $2960 7 Cell 960 ecA $3365 9005CR $4OSea 6 Cell l200rsA $2920 7Cell I200roA 53315 12005CR$39Sea packs wIred tlat packs t Fleece slIecOy desired contlectoro ELECTRIC POWER KITS MMC Ultra MK IV 08 Span SaIlplane tor 05 Gear53796 MMC Electric Playboy 67 Spas Old TOner tor 05 Gear$2600 Aatro Challenger 73 Span Sailplane torlts Geor$3250 EMD Electra Gilde II 73 Spas Sadtdase tot 0653100 EMD Thensic Traveler Sailplane 76 Spun tsr 0553100 EMD Sky Knight 44 Span Treiner br 05$2400 EMD Lightning 39 Span Acrobatic Spott Model tsr 05$2400 MMC Fast Eddie Aerobatic Spurt Model tsr 05$2400 u,- do-C 7 rc 400 . RerouarK 0100 Mt0UI VI SHIPPING & HANDLING76 Pugc CATALOGUE Up100800 add $200$200 pp/Out Class frce $801 $2000add$250wttcs rcquestcdreith ordcr $2001 $4500add$325 $4501 $7000add$375HOBBY ver $7000add$450HO CA Addressees add 6% tax Sued 3 Moran St [A] MO VISA / MC & EOP Date Box 2212 Check allow apIs 30 days tsrWestmnster Ca 92584 check clearance COD t charges plus $150 893-8311 handling Cash OnlyHrs Mon-Fri 9AM 5PM Before leaving subject pushrods let remind importance preflight spection Just two days ago watched videotape Piedmont now US Air Boeing 737 mak ing emergency landing because left main gear jammed Up position due wheel chock having left inside wheel well Preflight checks models important too Albert Antholz recently sent metal clevis nylon control horn seen about six hours operating elevator own design sport/Pattern model pin clevis worn less its original diameter hole horn almost twice its original di ameter Just like automobiles model airplane components wear out too pays make fre quent checks control linkages Product reviews Periodically manufacturers hobby products send samples wares because have some type safety feature No dont give plug column merely because received freebie men tion such product column its because believe does minimize another hazards modelers may face pur suit hobby discovered such prod uct arrived several months ago cleaning up den last week apolo gies Dave Abbe mailed product J-Tec Safe-Start engine testing stand What sets test stand apart others addition fitting rear its base accepts socket Ni-Starter McDan iel other brand wire equipped alli gator clip secured center connection fitting starting engine test stand alligator clip attached glow Continued page 22 old timer perfectly proportioned modeling Curtlss Robin 049 EngInes -Channel RIC 41 Wingspan ElectrIc Power Optional 62391 Ki Cr05 Onnv law lull scale alrcralt Ideally suited reodel ltlght appealing old Cartisa Robin born apruce end lines age beautitally propartioned tsr rubber electric glow engines Easy end tue build treinerllke purlorreence PlylIne Models Catalog hOG Phone 17031 2730093 MODELS INC FLYLINE Sax 2136 FaIrIes VIrgInia 22031 USA 20 Model Aviation SPECIFICATIONS Wing Span 83Channels 3 or4 Length 58WeIght 1014 lbs Power 60 sIze glow 40cc gas HGl Horn rohhy SpeclolOes plug Ni-Starter attached fitting rear stand permits engine started fear Ni-Starter shaking loose falling prop arc especially useful four-stroke engines have forward-facing glow plugs geometry may accept Ni-Starter opinion product has feature minimizes likelihood hand other object getting path rotating model air plane prop worthwhile purchase product have seen came mind examining above-mentioned test stand remote connection glow plug use model Scale modelers fabricate own remote connection glow plug cause dont want have nonscale hole engine cowling Such product safety de vice eliminates need reach close prop arc remove glow plug connector af ter starting engine anyone knows com mercially available remote glow plug connector please drop line editor remembers Model Products Corp PO Box 100 Alla muchy NJ 07820 made such device timeand maybe still Another product arrived mail some time ago came Performance Products Unlimited called Disc-Lock prop washer designed prevent propeller being kicked off crankshaft event backfire Disc-Lock patented design consist ing two washers having inclined cam face radial ridges other face use pair washers placed crank shaft cam faces adjacent another event backfire inclined cams act ramps make Disc-Lock thicker thus tight ening grip prop reason havent mentioned before now samples arrived last fall wanted able comment effectiveness However dont have four-stroke engines use test backfiring problem usu ally manifested type engine passed samples friend request try out However am still awaiting re sponse Meanwhile reader has used DiscLocks would care share opinion product Id appreciate hearing Yet another safety product found its way mailbox wraparound-style pair sun glasses distributed Safety Plus may have seen ads modeling press dont know about cannot fly model wear ing sunglasses Cheap brand-X sunglasses may block harmful ultraviolet radiation exposure could later life contributing fac tor cataracts Safety Plus sunglasses filter ultraviolet radiation conform ANSI Z87 1 standard addressing shatter-resistance glasses Im firm believer wearing eye protection starting tuning model engines So Howard Crispin AMA District IV VP few years ago Howard prop shatter break sunglasses believes could have lost sight eye wearing glasses Are quality sunglasses part models support equipment opinion should Have another safe month $226 ________ $299 _________ $375 ________ Power easy Starting power smooth take offs power intricate maneuvers Red Max makes engine come alive power performance never expected can have power Its phone call away Power today running power fully other _____100% money back guaran tee com pletely sat isfied reason Red Max has power better idle better wear char acteriStics _____other fuel 22 Model Aviation RED MAX 0 RED MAX 5 RED MAX 10 RED MAX 12 RED MAX 15 RED MAX 20 RED MAX 25 RED MAX 40 RED MAX 50 RED MAX80 RED MAX66 RED MAX FUEL Order Form CALL OR USE THIS HANDY ORDER FORM TO SPEED YOUR ORDER FILL IN QTY ON THE LEFT THE TOTAL ON THE RIGHT Freight free qts gals No hand ling charge Freight collect drums Deduct 3% prepay Mix qty Total qty deter mines price SC ordere add 5% sales tax Dealer club prices avail Accept credit cards checks end COD COD add $2 per cartonl Personal checks may held until cleared OTYFUELiGAL 4GAL24GAL600AL128GaI 84GAL 1TOTAL* ordered MIXTURE DRUM AMT RED MAX PREMIUM FUELI fuel beginners ft sport flyers should use Avaii synthetic castor bland *999*749*729$689*599*150 *1152*864$841$772$691*212 *1266*965$939$862*772*266 _______ *1372*1029*1002$919$823$301 _______ *1466*1084*1065$977$875*335 _______ RED MAX RACING FUEL Trophy winner planes boats ft cars two boat blends castor ok up 40% nitro _____$1775$1332$1296*1190*1066$464 *1965$1474$1435*1317*1179*841 _____$2539$1905*1884*1701*1524$774 *3922$2192*2133*1966$1783$839 ___*3306$2479$2413$2214$1983$1084 _____53497*2622$2552$2343$3998$1162 RED MAX4-CYCLE FUEL Eliminates detonatIon ft klckbeck 4-cycle engines smoother idle ft power 10-4 CYCLE*1383 $1022 *995 *913 *818*296 15-4CYCLE*1555 *1166 *1135 *1042 *933*375 RED MAX HELICOPTER FUEL Extremely smooth running axtra defoamer drk color special heavy oil heiicplre 10 Helicopter$1391 $1040 $1016 $932 $835 j $309 15 Helicopter$1583 $1187 $1155 $1050 $950 RED MAX PERFORMANCE FUELI High flash point heavy oil use tuned pipes ducted fan ft other heavy dty app 5 Performance$1200*900$876$804$720 10 Performance $1391*1043*1016$932$835 iSPerformance$1583$1187$1155$1080*950 RED MAX PATTERN FUEL Proven best fuel pattern engines using pumps tuned pipes 5 Pattern$1196$ 895 $ 870 $ 796 *695 10 Pattern$1375$1035 $1009 $ 925 *825 iSPattern$1575 $1176 $1145 $1050 *940 SUPER TIGER 3000 FUEL Beet fuel Super Tiger 20004000 engines _____SuperTiger3000 $1288 $965 $939 $862 *772$266 RED MAX DIESEL FUEL Superior diesel beck list popular demand customers Bail Bearings$1767 $1326 $1290 *1184 *1080 DieealPrBemigel8B7$1426$1390$1284*1180 SMOKER FLUID beet smoker fluid 2 4 cycle engines Smoker Fluid$1266 $965 $939 $862 $772$266 CUSTOM BLENDED FUEL INORDIENTS Available type engine use Call price Mm gallon boats-cars-heiicoptars-spaed-pattern-scale% scale-kaven-lgnition-st3000 PLEASE PRINT tiAMP BOX CTO1 CITY CTATC7Sfl cvoIAArmnr next week next year Red Maxs secret gredients keep engine last ing longer Grend Total responding advertIsers mention read about Model Aviation
Edition: Model Aviation - 1989/11
Page Numbers: 14, 16, 18, 20, 22
John Preston Safety512 Comes First Northampton St NW WashIngton DC 20015 column provided address Items concern regarding safety aspects model aviation activIties Content column however opInIon author does necessarily represent offidal position tie Academy Model Aeronautics Fly models proxim ity full-scale air craft Never Balsa pushrods revisited Some products promote safety CONFLICTS between full-scale aircraft mod els Periodicallybut frequently Im thankfulI receive reports readers about models trying share same piece sky full-scale aircraft recent such report came Bill Smith modeler Oxnard CA Bill US Navy jobs Command Safety Offi cer letter enclosed newspaper clipping LA Life section Camirillo Daily News captioned Unwelcome Visitor' read follows Traffic reporters Jorge Jarrin KABC-AM 790 Dick Morgan KFWB-AM 980 spot ted unusual dangerous sight early re cent morning looked out heli copter lifted off over Van Nuys bright yel low remote-controlled model airplane racing past 1300 ft could have knocked us down hit rotor tail rotor Morgan said Usually remotecontrol model airplane users pretty good Weve never problem before Soon after takeoff traffic copter usually flies pattern high above Sepulveda Dam Recreation Area theres field designated height-restricted remote-controlled model air planes copters fly direction avoid houses accordance noise-abatement mea sures gave guy benefit doubt made right-hand orbit 1300 ft twice made passes us about 30 ft Morgan said So notified tower Van Nuys airport police surprising because dont usually have problems Its sort thing happens Airport police investigated incident no arrests made letter Bill following remarks about incident newspaper clipping just another example small negligible percentage RC hobbyists going ruin everyone else never positive aspects hobby get atten tion some idiot playing chicken fullsize airplane helicopter gets publicity average citizen doesnt know about safe keep hobby about near-misses full-scale aircraft reason behind height restriction Sepulveda Basin model airport right under traffic pattern Van Nuys Airport busier air ports southern California midair lightplane would surely close RC field Se pulveda maybe others around country close proximity airports airport traffic areas know hard judge distances espe cially height model airplane think some sort gauge should developed similar ones used model rocketry figure Out height aircraft After using several times individual will able roughly judge models height better keep within height restrictions' About 12 years ago president RC club flew field located scant three miles perimeter fence surrounding Washington DCs Dulles International Airport field under flightpath airline traffic approaching three runways very conscious 400-ft height re striction recommended FAA RC model aircraft However occasion did have visit local sheriff due report fullscale aircraft Cessna 150 sighting model After incident attempted use kite show members just what model 400 ft looks like put length markers kites string let out until trigonometry could compute length kite string horizontal distance kite flier point immediately beneath kite height about 400 ft As best recall lot club members surprised low 400 ft really Since club still operating same field today guess have dutifully observing height restriction 400 ft readers have suggestions accu rately calculate measure models height please let know Ill publish fu ture column benefit others have enough problem keeping flying fields deliberately trying lose play ing cat-and-mouse full-scale air traffic Balsa pushrodsgood bad previous Safety columns June August 1989 1 have discussed letters readers concerning safety balsawood pushrods Such pushrods supplied number model kits several readers opinion should used believe used models pow ered engines 040 cid less should no problem use -in-sq balsawood rudder elevator pushrods installed correctly So what mean correct installation First dont fabricate pushrods soft wood Continued page 16 14 Model Aviation 1 t ThIS UY S&r UE WERE T OU 4o0-FOYr FLYINEr CEIL1N E POWER bra Blackhead Sport Engines lhlebra engines offer finest German engineering WV awide range size powerapplicationsforthe R/O hobbyist engines famous reliability lasting performance power spare great features like ball bearing supported crankshafts engines will power airplane helicopter levels performance youve thought about Blackhead series engines designed sport flyer looped scavenged engines extremely smooth running excellent throttle characteristics performance best theyre affordable #WE1O22RC Blackhead 40 #WE1O2ORC Blackhead 61 Available now through local hobby dealer Webra EngineOutputRPM-RangeDisplacement HPRPM/mon BoreStrokeWeightProp mmmmozSize 902000-15500 1452000-14000 6502100199910939x7 10x4 100024002200151611x711x8 Distributed Hobby Dynamics Distributors e 1-800-458-0241 PO Box 3726 Champaign IL 61826-3726 FAX 1-217-355-0058 AL BLUES CA getting down get protected CA mask Safety Plus mask will eliminate CA fumes epoxy polyester resin vapors air breath Lightweight easy breathing comfortable CA Mask $1595 Paint Mask $2045 See hobby dealer first doesnt have what need order direct Safety Plus PO Box 1173 Dept 12M Clinton Mississippi 39056 Call toll free 1-800-842-7233 Mississippi dial 601-924-9640 VISA MASTERCARD accepted COD add $250 shipping handling included Dealer Inquiries Invited find kit manufacturer has supplied pushrod stock appears too soft local hobby dealer may well exchange some harder material its going break bank have purchase better material Two readers recently wrote suggested methods stiffening balsawood pushrods John Deden Missouri City TX uses thin plywood stiffening may Id like put two cents balsa pushrods years used balsa pushrods problems models under 10 lbuntil about four years ago model 95-lb lowwing sport/Pattern type symmetrical wing airfoil subject snaps over top turned too sharply low airspeeds Over period some six nine months rudder elevator neutral required readjustment virtually weekend kept close tabs condition pushrod end connections horns No problems Finally after rather se vere crash over-the-top snap ground final cracked rear fuselage removed tail assembly pushrods found oncestraight hard-balsa rudder pushrod bowed about 34 Its overall length 20 same elevator pushrod latter bowed about inch cause may have stresses internal wood warping due high heat humidity Houston subsequent model another crash caused both rudder elevator pushrods shatter ap proximately middle lengths Slowly 40-watt light bulb began glow vacuum-formed head middle maxi mum bending point pushrod essentially column pinjointed end under compression Subse Continued page 18 ZIm SUNSHINE HOBBY READY TO FLY Call 1-800-45-TO FLY ACCFSSORIES INCLUDED PIPER CHEROKEE-40$12999 PIPER CHEROKEE-2510899 FOKKER E111-4011999 FANCY STICK-4011499 FANCY STICK-256999 CESSNA 172-2010899 CONDOR-40L11999 TERCEL-4512199 ENGINE NOT INCLUDED PIONEER CAR$6000 ENGINE INCLUDED 17221 South western Avenue Gardena California 90247 CONTACT us FOR THIS MONTHS SPECIAL 16 Model Aviation 40 Blackhead 61 Blackhead o flHUflMUflUflUUa HU H *,jo6 FLY pmveasiFUEL FROM KINGSWAYI PERFOR CE Speed 50 has become favorite among air plane helicopter modelers need powerful yet light engine essential Available both ringed ABC versions Webra Speed 50 has become industry standard others its class measured Speed 61 Heli center has track rec stands alone field helicopter aerobatics Smooth dependable power large heat sink head double ball bearing supported crankshaft schnuerle porting make Webra Speed Series choice champions #WE1025RC 50 Ringed #WE1O25ABC 50 ABC #WE1O25RCH 50 Ringed hell #WE1025ABCH 50 ABC hell #WE1O24RRH 61 Ringed hell #WE1O24RCH 61 ABC heli SpeedOutput RPM-Range EngineHPRPM/mon 50 Rngd 50 ABC 50 Hell ABC 50 Hell Rngd 61 Hell ABC 61 Hell Rngd 1502500-16000 1682500-16000 1682500-16000 1682500-16000 1962000-16000 1962000-16000 Available now through local hobby dealer Dmplcnint Bore cernmm 8302300 8302300 8302300 8302300 9952400 9952400 StrokeWeight mmoz 2000 2000 2000 2000 2200 2200 1270 1270 1376 1376 1675 1675 VD1 TM Hobby Dynamics Distributors ox 3726 Champaign IL 61826-3726 e 1-800-458-0241 1-217-355-0058 K RELIABLY WITH CRYSTALS FROM JAN ALL FREQUENCIES TRANSMIT & RECEIVE QUICK DELIVERY REASONABLE PRICES FOR FREE CATALOG CALL OR WRITE JAN CRYSTALS PO BOX 06017 FORT MYERS FL 33906 813 936-2397 Iw TOLL-FREE 1-800-237-3063 IN FLORIDA 1-800226-XTAL FAX ORDERS 1-813-9363750 quent pushrods balsa otherwise mostly use balsa now provided four doublers face epoxied place doublers fabricated /61 /16 plywood wide length batsa pushrod tn bad crash rods can still snap since using approach Ive no warped rods soggy controts due rod flex ureonty worn control horns Another reader Eugene Waters has simitar sotusion strengthening balsa pushrods margi nat strength uses different reinforcing material Gene Oak Ridge TN sent drawing showing epoxies strip crinoline full length of four faces A-in-sq balsa pushrod Crino line stiff cotton fabric can purchased dress fabric store years ago t used similar approach too lazy drive hobby store buy some harder A-in-sq balsa However used silk covering material glued Ambroid balsa cement think Genes suggestion better second important step correct installa tion balsa other material pushrod make sure doesnt rub another pushrod parts internal structure bulk heads fuselage couple readers wrote experi enced failures balsa pushrods wore because contact something fuse lage possible recommend installing pushrods fuselage before finishing cov ering operation all-sheeted fuselages leave bottom open until install servos empen nage tail pushrods can easily ob serve whats going inside operate controls Continued page 20 18 Model Aviation Webra Speed Engines T U U IF1 Box 1063 Lorain Ohio 44055 UPj Phone 216 282-8354 PEANUT SCALE Piper vagabond Piper Cub Stinson 125 W Outdoor kits each. $750 Light Indoor kits $795 OUTDOOR PEANUT Super Scale. $750 NEW Micro X Hornet P-30. $1395 SPORT SCALE PC-6 Porter Taylor Craft Stinson voyager Rubber 00 Power Kiss each. $850 SPORT MODELS An Embryo Model 18 Span designed winl beginners experts 0 HARD-TO-FIND ITEMS Early Bird Tissue Antique Aircraft$595 True Olde Japanese Tissue 10 3 colors$695 Japanese Tissue 12 6 colors$395 Microlite Silver$395 Microfilm $495 Glue $175 Solvent $150 Plan Service over 17 Scale Sport Scale & Peanut Scale Rubber Strip 020 thru 085 each $195 3/32 thru 5/32each $250 Winder 61 $595 Mark 161 $1295 Complete Line Brown 00 Motors Baiss Wood Outdoor & Indoor Sheets & Strips Add 10% Postage ostage $150 COMPLETE CATALOG $150 K reasons Pipe Dream perfect R C Trainer Size ge model aircraft just plain easier handle smaller models stable visible perform much like real aircraft Durability designed take kind abuse other trainers couldnt begin take Repairability. Pipe Dream makes recovering inevitable mistakes quick easy Fast Assembly. other trainers consume considerable amount leisure time assembly Pipe Dream ready fly just few evenings Versatility. good trainers Pipe Dream allows learn functional ailerons Adjustable wing dihedral permits performance upgrades skills im prove Plug-in wings detach seconds making Pipe Dream easier transport smaller trainers Learn fly sensible enjoyable way Pipe Dream Giant Scale Trainer Its better get off Pipe Dream nightmare detailed Info Pack send $200 Catalogs just $300 See Local Byron Dealer Today Full Line Byron Kits Accessories Fuels AETRO PLIGHT SYSTEMS Challenger Cobalt 4 cell 025 DireCt $ 7645 Geared Challenger Cobalt 5 cell 035 Direct $ 8920 Geared Challenger Cobalt 7cell 08 DIrect $10621 Geared Challenger Cobalt 12 cal IS Direct $14020 Geared Challenger Csbalt 14 cal 25 Direct $16570 Geared Challenger Cobalt 18 cat 40 Direct $19545 Geared Challenger Cobalt 24 cal 60 Direct $28471 Astro DC/DC Super Charger up 1028 cells Axtro AC/DC Charger ajrrent adust Autro DC/DC Charger Autro Electric Thrdllle Astro On-DO Motor Control Electronic AEQRIE Anderoos Power Pole Connector 4 housings /4 pins Gold Fin Moleo Connector Tamiya Connector HI-Flex Wire 30 na red & blad 16 GaJ240 Stren Daveys 30 Arrrp Meter t Micro Switch Harnesut 3/16 Flat Braid br Soldering BaSerles Heat Shrink Tubing Batteries 25 tsr 4SOAR 905 & 12005CR Flat Packs 3 tor ltO0AR Flat Packs 4 tsr BOSAR & 1200SCR Stacked Fuchs uOVfl ffflflFE flATTERY PACKS $ 9771 $11046 $12740 $18145 $16696 $21671 $8298 $5500 $3200 $5596 $3196 5200 /pr $210 /pr $150 /yr $200 $1995 $450 $050/fl $150/It $160/It 5165/5 t CELLS 4Cell 450nd$1950 SCell 450roA$2300 450AR $35065 6Cell 600roA$2920 7Cell ltOOreA$33I5 bOAR $395ea 6 Cell 900 roA $2960 7 Cell 960 ecA $3365 9005CR $4OSea 6 Cell l200rsA $2920 7Cell I200roA 53315 12005CR$39Sea packs wIred tlat packs t Fleece slIecOy desired contlectoro ELECTRIC POWER KITS MMC Ultra MK IV 08 Span SaIlplane tor 05 Gear53796 MMC Electric Playboy 67 Spas Old TOner tor 05 Gear$2600 Aatro Challenger 73 Span Sailplane torlts Geor$3250 EMD Electra Gilde II 73 Spas Sadtdase tot 0653100 EMD Thensic Traveler Sailplane 76 Spun tsr 0553100 EMD Sky Knight 44 Span Treiner br 05$2400 EMD Lightning 39 Span Acrobatic Spott Model tsr 05$2400 MMC Fast Eddie Aerobatic Spurt Model tsr 05$2400 u,- do-C 7 rc 400 . RerouarK 0100 Mt0UI VI SHIPPING & HANDLING76 Pugc CATALOGUE Up100800 add $200$200 pp/Out Class frce $801 $2000add$250wttcs rcquestcdreith ordcr $2001 $4500add$325 $4501 $7000add$375HOBBY ver $7000add$450HO CA Addressees add 6% tax Sued 3 Moran St [A] MO VISA / MC & EOP Date Box 2212 Check allow apIs 30 days tsrWestmnster Ca 92584 check clearance COD t charges plus $150 893-8311 handling Cash OnlyHrs Mon-Fri 9AM 5PM Before leaving subject pushrods let remind importance preflight spection Just two days ago watched videotape Piedmont now US Air Boeing 737 mak ing emergency landing because left main gear jammed Up position due wheel chock having left inside wheel well Preflight checks models important too Albert Antholz recently sent metal clevis nylon control horn seen about six hours operating elevator own design sport/Pattern model pin clevis worn less its original diameter hole horn almost twice its original di ameter Just like automobiles model airplane components wear out too pays make fre quent checks control linkages Product reviews Periodically manufacturers hobby products send samples wares because have some type safety feature No dont give plug column merely because received freebie men tion such product column its because believe does minimize another hazards modelers may face pur suit hobby discovered such prod uct arrived several months ago cleaning up den last week apolo gies Dave Abbe mailed product J-Tec Safe-Start engine testing stand What sets test stand apart others addition fitting rear its base accepts socket Ni-Starter McDan iel other brand wire equipped alli gator clip secured center connection fitting starting engine test stand alligator clip attached glow Continued page 22 old timer perfectly proportioned modeling Curtlss Robin 049 EngInes -Channel RIC 41 Wingspan ElectrIc Power Optional 62391 Ki Cr05 Onnv law lull scale alrcralt Ideally suited reodel ltlght appealing old Cartisa Robin born apruce end lines age beautitally propartioned tsr rubber electric glow engines Easy end tue build treinerllke purlorreence PlylIne Models Catalog hOG Phone 17031 2730093 MODELS INC FLYLINE Sax 2136 FaIrIes VIrgInia 22031 USA 20 Model Aviation SPECIFICATIONS Wing Span 83Channels 3 or4 Length 58WeIght 1014 lbs Power 60 sIze glow 40cc gas HGl Horn rohhy SpeclolOes plug Ni-Starter attached fitting rear stand permits engine started fear Ni-Starter shaking loose falling prop arc especially useful four-stroke engines have forward-facing glow plugs geometry may accept Ni-Starter opinion product has feature minimizes likelihood hand other object getting path rotating model air plane prop worthwhile purchase product have seen came mind examining above-mentioned test stand remote connection glow plug use model Scale modelers fabricate own remote connection glow plug cause dont want have nonscale hole engine cowling Such product safety de vice eliminates need reach close prop arc remove glow plug connector af ter starting engine anyone knows com mercially available remote glow plug connector please drop line editor remembers Model Products Corp PO Box 100 Alla muchy NJ 07820 made such device timeand maybe still Another product arrived mail some time ago came Performance Products Unlimited called Disc-Lock prop washer designed prevent propeller being kicked off crankshaft event backfire Disc-Lock patented design consist ing two washers having inclined cam face radial ridges other face use pair washers placed crank shaft cam faces adjacent another event backfire inclined cams act ramps make Disc-Lock thicker thus tight ening grip prop reason havent mentioned before now samples arrived last fall wanted able comment effectiveness However dont have four-stroke engines use test backfiring problem usu ally manifested type engine passed samples friend request try out However am still awaiting re sponse Meanwhile reader has used DiscLocks would care share opinion product Id appreciate hearing Yet another safety product found its way mailbox wraparound-style pair sun glasses distributed Safety Plus may have seen ads modeling press dont know about cannot fly model wear ing sunglasses Cheap brand-X sunglasses may block harmful ultraviolet radiation exposure could later life contributing fac tor cataracts Safety Plus sunglasses filter ultraviolet radiation conform ANSI Z87 1 standard addressing shatter-resistance glasses Im firm believer wearing eye protection starting tuning model engines So Howard Crispin AMA District IV VP few years ago Howard prop shatter break sunglasses believes could have lost sight eye wearing glasses Are quality sunglasses part models support equipment opinion should Have another safe month $226 ________ $299 _________ $375 ________ Power easy Starting power smooth take offs power intricate maneuvers Red Max makes engine come alive power performance never expected can have power Its phone call away Power today running power fully other _____100% money back guaran tee com pletely sat isfied reason Red Max has power better idle better wear char acteriStics _____other fuel 22 Model Aviation RED MAX 0 RED MAX 5 RED MAX 10 RED MAX 12 RED MAX 15 RED MAX 20 RED MAX 25 RED MAX 40 RED MAX 50 RED MAX80 RED MAX66 RED MAX FUEL Order Form CALL OR USE THIS HANDY ORDER FORM TO SPEED YOUR ORDER FILL IN QTY ON THE LEFT THE TOTAL ON THE RIGHT Freight free qts gals No hand ling charge Freight collect drums Deduct 3% prepay Mix qty Total qty deter mines price SC ordere add 5% sales tax Dealer club prices avail Accept credit cards checks end COD COD add $2 per cartonl Personal checks may held until cleared OTYFUELiGAL 4GAL24GAL600AL128GaI 84GAL 1TOTAL* ordered MIXTURE DRUM AMT RED MAX PREMIUM FUELI fuel beginners ft sport flyers should use Avaii synthetic castor bland *999*749*729$689*599*150 *1152*864$841$772$691*212 *1266*965$939$862*772*266 _______ *1372*1029*1002$919$823$301 _______ *1466*1084*1065$977$875*335 _______ RED MAX RACING FUEL Trophy winner planes boats ft cars two boat blends castor ok up 40% nitro _____$1775$1332$1296*1190*1066$464 *1965$1474$1435*1317*1179*841 _____$2539$1905*1884*1701*1524$774 *3922$2192*2133*1966$1783$839 ___*3306$2479$2413$2214$1983$1084 _____53497*2622$2552$2343$3998$1162 RED MAX4-CYCLE FUEL Eliminates detonatIon ft klckbeck 4-cycle engines smoother idle ft power 10-4 CYCLE*1383 $1022 *995 *913 *818*296 15-4CYCLE*1555 *1166 *1135 *1042 *933*375 RED MAX HELICOPTER FUEL Extremely smooth running axtra defoamer drk color special heavy oil heiicplre 10 Helicopter$1391 $1040 $1016 $932 $835 j $309 15 Helicopter$1583 $1187 $1155 $1050 $950 RED MAX PERFORMANCE FUELI High flash point heavy oil use tuned pipes ducted fan ft other heavy dty app 5 Performance$1200*900$876$804$720 10 Performance $1391*1043*1016$932$835 iSPerformance$1583$1187$1155$1080*950 RED MAX PATTERN FUEL Proven best fuel pattern engines using pumps tuned pipes 5 Pattern$1196$ 895 $ 870 $ 796 *695 10 Pattern$1375$1035 $1009 $ 925 *825 iSPattern$1575 $1176 $1145 $1050 *940 SUPER TIGER 3000 FUEL Beet fuel Super Tiger 20004000 engines _____SuperTiger3000 $1288 $965 $939 $862 *772$266 RED MAX DIESEL FUEL Superior diesel beck list popular demand customers Bail Bearings$1767 $1326 $1290 *1184 *1080 DieealPrBemigel8B7$1426$1390$1284*1180 SMOKER FLUID beet smoker fluid 2 4 cycle engines Smoker Fluid$1266 $965 $939 $862 $772$266 CUSTOM BLENDED FUEL INORDIENTS Available type engine use Call price Mm gallon boats-cars-heiicoptars-spaed-pattern-scale% scale-kaven-lgnition-st3000 PLEASE PRINT tiAMP BOX CTO1 CITY CTATC7Sfl cvoIAArmnr next week next year Red Maxs secret gredients keep engine last ing longer Grend Total responding advertIsers mention read about Model Aviation
Edition: Model Aviation - 1989/11
Page Numbers: 14, 16, 18, 20, 22
John Preston Safety512 Comes First Northampton St NW WashIngton DC 20015 column provided address Items concern regarding safety aspects model aviation activIties Content column however opInIon author does necessarily represent offidal position tie Academy Model Aeronautics Fly models proxim ity full-scale air craft Never Balsa pushrods revisited Some products promote safety CONFLICTS between full-scale aircraft mod els Periodicallybut frequently Im thankfulI receive reports readers about models trying share same piece sky full-scale aircraft recent such report came Bill Smith modeler Oxnard CA Bill US Navy jobs Command Safety Offi cer letter enclosed newspaper clipping LA Life section Camirillo Daily News captioned Unwelcome Visitor' read follows Traffic reporters Jorge Jarrin KABC-AM 790 Dick Morgan KFWB-AM 980 spot ted unusual dangerous sight early re cent morning looked out heli copter lifted off over Van Nuys bright yel low remote-controlled model airplane racing past 1300 ft could have knocked us down hit rotor tail rotor Morgan said Usually remotecontrol model airplane users pretty good Weve never problem before Soon after takeoff traffic copter usually flies pattern high above Sepulveda Dam Recreation Area theres field designated height-restricted remote-controlled model air planes copters fly direction avoid houses accordance noise-abatement mea sures gave guy benefit doubt made right-hand orbit 1300 ft twice made passes us about 30 ft Morgan said So notified tower Van Nuys airport police surprising because dont usually have problems Its sort thing happens Airport police investigated incident no arrests made letter Bill following remarks about incident newspaper clipping just another example small negligible percentage RC hobbyists going ruin everyone else never positive aspects hobby get atten tion some idiot playing chicken fullsize airplane helicopter gets publicity average citizen doesnt know about safe keep hobby about near-misses full-scale aircraft reason behind height restriction Sepulveda Basin model airport right under traffic pattern Van Nuys Airport busier air ports southern California midair lightplane would surely close RC field Se pulveda maybe others around country close proximity airports airport traffic areas know hard judge distances espe cially height model airplane think some sort gauge should developed similar ones used model rocketry figure Out height aircraft After using several times individual will able roughly judge models height better keep within height restrictions' About 12 years ago president RC club flew field located scant three miles perimeter fence surrounding Washington DCs Dulles International Airport field under flightpath airline traffic approaching three runways very conscious 400-ft height re striction recommended FAA RC model aircraft However occasion did have visit local sheriff due report fullscale aircraft Cessna 150 sighting model After incident attempted use kite show members just what model 400 ft looks like put length markers kites string let out until trigonometry could compute length kite string horizontal distance kite flier point immediately beneath kite height about 400 ft As best recall lot club members surprised low 400 ft really Since club still operating same field today guess have dutifully observing height restriction 400 ft readers have suggestions accu rately calculate measure models height please let know Ill publish fu ture column benefit others have enough problem keeping flying fields deliberately trying lose play ing cat-and-mouse full-scale air traffic Balsa pushrodsgood bad previous Safety columns June August 1989 1 have discussed letters readers concerning safety balsawood pushrods Such pushrods supplied number model kits several readers opinion should used believe used models pow ered engines 040 cid less should no problem use -in-sq balsawood rudder elevator pushrods installed correctly So what mean correct installation First dont fabricate pushrods soft wood Continued page 16 14 Model Aviation 1 t ThIS UY S&r UE WERE T OU 4o0-FOYr FLYINEr CEIL1N E POWER bra Blackhead Sport Engines lhlebra engines offer finest German engineering WV awide range size powerapplicationsforthe R/O hobbyist engines famous reliability lasting performance power spare great features like ball bearing supported crankshafts engines will power airplane helicopter levels performance youve thought about Blackhead series engines designed sport flyer looped scavenged engines extremely smooth running excellent throttle characteristics performance best theyre affordable #WE1O22RC Blackhead 40 #WE1O2ORC Blackhead 61 Available now through local hobby dealer Webra EngineOutputRPM-RangeDisplacement HPRPM/mon BoreStrokeWeightProp mmmmozSize 902000-15500 1452000-14000 6502100199910939x7 10x4 100024002200151611x711x8 Distributed Hobby Dynamics Distributors e 1-800-458-0241 PO Box 3726 Champaign IL 61826-3726 FAX 1-217-355-0058 AL BLUES CA getting down get protected CA mask Safety Plus mask will eliminate CA fumes epoxy polyester resin vapors air breath Lightweight easy breathing comfortable CA Mask $1595 Paint Mask $2045 See hobby dealer first doesnt have what need order direct Safety Plus PO Box 1173 Dept 12M Clinton Mississippi 39056 Call toll free 1-800-842-7233 Mississippi dial 601-924-9640 VISA MASTERCARD accepted COD add $250 shipping handling included Dealer Inquiries Invited find kit manufacturer has supplied pushrod stock appears too soft local hobby dealer may well exchange some harder material its going break bank have purchase better material Two readers recently wrote suggested methods stiffening balsawood pushrods John Deden Missouri City TX uses thin plywood stiffening may Id like put two cents balsa pushrods years used balsa pushrods problems models under 10 lbuntil about four years ago model 95-lb lowwing sport/Pattern type symmetrical wing airfoil subject snaps over top turned too sharply low airspeeds Over period some six nine months rudder elevator neutral required readjustment virtually weekend kept close tabs condition pushrod end connections horns No problems Finally after rather se vere crash over-the-top snap ground final cracked rear fuselage removed tail assembly pushrods found oncestraight hard-balsa rudder pushrod bowed about 34 Its overall length 20 same elevator pushrod latter bowed about inch cause may have stresses internal wood warping due high heat humidity Houston subsequent model another crash caused both rudder elevator pushrods shatter ap proximately middle lengths Slowly 40-watt light bulb began glow vacuum-formed head middle maxi mum bending point pushrod essentially column pinjointed end under compression Subse Continued page 18 ZIm SUNSHINE HOBBY READY TO FLY Call 1-800-45-TO FLY ACCFSSORIES INCLUDED PIPER CHEROKEE-40$12999 PIPER CHEROKEE-2510899 FOKKER E111-4011999 FANCY STICK-4011499 FANCY STICK-256999 CESSNA 172-2010899 CONDOR-40L11999 TERCEL-4512199 ENGINE NOT INCLUDED PIONEER CAR$6000 ENGINE INCLUDED 17221 South western Avenue Gardena California 90247 CONTACT us FOR THIS MONTHS SPECIAL 16 Model Aviation 40 Blackhead 61 Blackhead o flHUflMUflUflUUa HU H *,jo6 FLY pmveasiFUEL FROM KINGSWAYI PERFOR CE Speed 50 has become favorite among air plane helicopter modelers need powerful yet light engine essential Available both ringed ABC versions Webra Speed 50 has become industry standard others its class measured Speed 61 Heli center has track rec stands alone field helicopter aerobatics Smooth dependable power large heat sink head double ball bearing supported crankshaft schnuerle porting make Webra Speed Series choice champions #WE1025RC 50 Ringed #WE1O25ABC 50 ABC #WE1O25RCH 50 Ringed hell #WE1025ABCH 50 ABC hell #WE1O24RRH 61 Ringed hell #WE1O24RCH 61 ABC heli SpeedOutput RPM-Range EngineHPRPM/mon 50 Rngd 50 ABC 50 Hell ABC 50 Hell Rngd 61 Hell ABC 61 Hell Rngd 1502500-16000 1682500-16000 1682500-16000 1682500-16000 1962000-16000 1962000-16000 Available now through local hobby dealer Dmplcnint Bore cernmm 8302300 8302300 8302300 8302300 9952400 9952400 StrokeWeight mmoz 2000 2000 2000 2000 2200 2200 1270 1270 1376 1376 1675 1675 VD1 TM Hobby Dynamics Distributors ox 3726 Champaign IL 61826-3726 e 1-800-458-0241 1-217-355-0058 K RELIABLY WITH CRYSTALS FROM JAN ALL FREQUENCIES TRANSMIT & RECEIVE QUICK DELIVERY REASONABLE PRICES FOR FREE CATALOG CALL OR WRITE JAN CRYSTALS PO BOX 06017 FORT MYERS FL 33906 813 936-2397 Iw TOLL-FREE 1-800-237-3063 IN FLORIDA 1-800226-XTAL FAX ORDERS 1-813-9363750 quent pushrods balsa otherwise mostly use balsa now provided four doublers face epoxied place doublers fabricated /61 /16 plywood wide length batsa pushrod tn bad crash rods can still snap since using approach Ive no warped rods soggy controts due rod flex ureonty worn control horns Another reader Eugene Waters has simitar sotusion strengthening balsa pushrods margi nat strength uses different reinforcing material Gene Oak Ridge TN sent drawing showing epoxies strip crinoline full length of four faces A-in-sq balsa pushrod Crino line stiff cotton fabric can purchased dress fabric store years ago t used similar approach too lazy drive hobby store buy some harder A-in-sq balsa However used silk covering material glued Ambroid balsa cement think Genes suggestion better second important step correct installa tion balsa other material pushrod make sure doesnt rub another pushrod parts internal structure bulk heads fuselage couple readers wrote experi enced failures balsa pushrods wore because contact something fuse lage possible recommend installing pushrods fuselage before finishing cov ering operation all-sheeted fuselages leave bottom open until install servos empen nage tail pushrods can easily ob serve whats going inside operate controls Continued page 20 18 Model Aviation Webra Speed Engines T U U IF1 Box 1063 Lorain Ohio 44055 UPj Phone 216 282-8354 PEANUT SCALE Piper vagabond Piper Cub Stinson 125 W Outdoor kits each. $750 Light Indoor kits $795 OUTDOOR PEANUT Super Scale. $750 NEW Micro X Hornet P-30. $1395 SPORT SCALE PC-6 Porter Taylor Craft Stinson voyager Rubber 00 Power Kiss each. $850 SPORT MODELS An Embryo Model 18 Span designed winl beginners experts 0 HARD-TO-FIND ITEMS Early Bird Tissue Antique Aircraft$595 True Olde Japanese Tissue 10 3 colors$695 Japanese Tissue 12 6 colors$395 Microlite Silver$395 Microfilm $495 Glue $175 Solvent $150 Plan Service over 17 Scale Sport Scale & Peanut Scale Rubber Strip 020 thru 085 each $195 3/32 thru 5/32each $250 Winder 61 $595 Mark 161 $1295 Complete Line Brown 00 Motors Baiss Wood Outdoor & Indoor Sheets & Strips Add 10% Postage ostage $150 COMPLETE CATALOG $150 K reasons Pipe Dream perfect R C Trainer Size ge model aircraft just plain easier handle smaller models stable visible perform much like real aircraft Durability designed take kind abuse other trainers couldnt begin take Repairability. Pipe Dream makes recovering inevitable mistakes quick easy Fast Assembly. other trainers consume considerable amount leisure time assembly Pipe Dream ready fly just few evenings Versatility. good trainers Pipe Dream allows learn functional ailerons Adjustable wing dihedral permits performance upgrades skills im prove Plug-in wings detach seconds making Pipe Dream easier transport smaller trainers Learn fly sensible enjoyable way Pipe Dream Giant Scale Trainer Its better get off Pipe Dream nightmare detailed Info Pack send $200 Catalogs just $300 See Local Byron Dealer Today Full Line Byron Kits Accessories Fuels AETRO PLIGHT SYSTEMS Challenger Cobalt 4 cell 025 DireCt $ 7645 Geared Challenger Cobalt 5 cell 035 Direct $ 8920 Geared Challenger Cobalt 7cell 08 DIrect $10621 Geared Challenger Cobalt 12 cal IS Direct $14020 Geared Challenger Csbalt 14 cal 25 Direct $16570 Geared Challenger Cobalt 18 cat 40 Direct $19545 Geared Challenger Cobalt 24 cal 60 Direct $28471 Astro DC/DC Super Charger up 1028 cells Axtro AC/DC Charger ajrrent adust Autro DC/DC Charger Autro Electric Thrdllle Astro On-DO Motor Control Electronic AEQRIE Anderoos Power Pole Connector 4 housings /4 pins Gold Fin Moleo Connector Tamiya Connector HI-Flex Wire 30 na red & blad 16 GaJ240 Stren Daveys 30 Arrrp Meter t Micro Switch Harnesut 3/16 Flat Braid br Soldering BaSerles Heat Shrink Tubing Batteries 25 tsr 4SOAR 905 & 12005CR Flat Packs 3 tor ltO0AR Flat Packs 4 tsr BOSAR & 1200SCR Stacked Fuchs uOVfl ffflflFE flATTERY PACKS $ 9771 $11046 $12740 $18145 $16696 $21671 $8298 $5500 $3200 $5596 $3196 5200 /pr $210 /pr $150 /yr $200 $1995 $450 $050/fl $150/It $160/It 5165/5 t CELLS 4Cell 450nd$1950 SCell 450roA$2300 450AR $35065 6Cell 600roA$2920 7Cell ltOOreA$33I5 bOAR $395ea 6 Cell 900 roA $2960 7 Cell 960 ecA $3365 9005CR $4OSea 6 Cell l200rsA $2920 7Cell I200roA 53315 12005CR$39Sea packs wIred tlat packs t Fleece slIecOy desired contlectoro ELECTRIC POWER KITS MMC Ultra MK IV 08 Span SaIlplane tor 05 Gear53796 MMC Electric Playboy 67 Spas Old TOner tor 05 Gear$2600 Aatro Challenger 73 Span Sailplane torlts Geor$3250 EMD Electra Gilde II 73 Spas Sadtdase tot 0653100 EMD Thensic Traveler Sailplane 76 Spun tsr 0553100 EMD Sky Knight 44 Span Treiner br 05$2400 EMD Lightning 39 Span Acrobatic Spott Model tsr 05$2400 MMC Fast Eddie Aerobatic Spurt Model tsr 05$2400 u,- do-C 7 rc 400 . RerouarK 0100 Mt0UI VI SHIPPING & HANDLING76 Pugc CATALOGUE Up100800 add $200$200 pp/Out Class frce $801 $2000add$250wttcs rcquestcdreith ordcr $2001 $4500add$325 $4501 $7000add$375HOBBY ver $7000add$450HO CA Addressees add 6% tax Sued 3 Moran St [A] MO VISA / MC & EOP Date Box 2212 Check allow apIs 30 days tsrWestmnster Ca 92584 check clearance COD t charges plus $150 893-8311 handling Cash OnlyHrs Mon-Fri 9AM 5PM Before leaving subject pushrods let remind importance preflight spection Just two days ago watched videotape Piedmont now US Air Boeing 737 mak ing emergency landing because left main gear jammed Up position due wheel chock having left inside wheel well Preflight checks models important too Albert Antholz recently sent metal clevis nylon control horn seen about six hours operating elevator own design sport/Pattern model pin clevis worn less its original diameter hole horn almost twice its original di ameter Just like automobiles model airplane components wear out too pays make fre quent checks control linkages Product reviews Periodically manufacturers hobby products send samples wares because have some type safety feature No dont give plug column merely because received freebie men tion such product column its because believe does minimize another hazards modelers may face pur suit hobby discovered such prod uct arrived several months ago cleaning up den last week apolo gies Dave Abbe mailed product J-Tec Safe-Start engine testing stand What sets test stand apart others addition fitting rear its base accepts socket Ni-Starter McDan iel other brand wire equipped alli gator clip secured center connection fitting starting engine test stand alligator clip attached glow Continued page 22 old timer perfectly proportioned modeling Curtlss Robin 049 EngInes -Channel RIC 41 Wingspan ElectrIc Power Optional 62391 Ki Cr05 Onnv law lull scale alrcralt Ideally suited reodel ltlght appealing old Cartisa Robin born apruce end lines age beautitally propartioned tsr rubber electric glow engines Easy end tue build treinerllke purlorreence PlylIne Models Catalog hOG Phone 17031 2730093 MODELS INC FLYLINE Sax 2136 FaIrIes VIrgInia 22031 USA 20 Model Aviation SPECIFICATIONS Wing Span 83Channels 3 or4 Length 58WeIght 1014 lbs Power 60 sIze glow 40cc gas HGl Horn rohhy SpeclolOes plug Ni-Starter attached fitting rear stand permits engine started fear Ni-Starter shaking loose falling prop arc especially useful four-stroke engines have forward-facing glow plugs geometry may accept Ni-Starter opinion product has feature minimizes likelihood hand other object getting path rotating model air plane prop worthwhile purchase product have seen came mind examining above-mentioned test stand remote connection glow plug use model Scale modelers fabricate own remote connection glow plug cause dont want have nonscale hole engine cowling Such product safety de vice eliminates need reach close prop arc remove glow plug connector af ter starting engine anyone knows com mercially available remote glow plug connector please drop line editor remembers Model Products Corp PO Box 100 Alla muchy NJ 07820 made such device timeand maybe still Another product arrived mail some time ago came Performance Products Unlimited called Disc-Lock prop washer designed prevent propeller being kicked off crankshaft event backfire Disc-Lock patented design consist ing two washers having inclined cam face radial ridges other face use pair washers placed crank shaft cam faces adjacent another event backfire inclined cams act ramps make Disc-Lock thicker thus tight ening grip prop reason havent mentioned before now samples arrived last fall wanted able comment effectiveness However dont have four-stroke engines use test backfiring problem usu ally manifested type engine passed samples friend request try out However am still awaiting re sponse Meanwhile reader has used DiscLocks would care share opinion product Id appreciate hearing Yet another safety product found its way mailbox wraparound-style pair sun glasses distributed Safety Plus may have seen ads modeling press dont know about cannot fly model wear ing sunglasses Cheap brand-X sunglasses may block harmful ultraviolet radiation exposure could later life contributing fac tor cataracts Safety Plus sunglasses filter ultraviolet radiation conform ANSI Z87 1 standard addressing shatter-resistance glasses Im firm believer wearing eye protection starting tuning model engines So Howard Crispin AMA District IV VP few years ago Howard prop shatter break sunglasses believes could have lost sight eye wearing glasses Are quality sunglasses part models support equipment opinion should Have another safe month $226 ________ $299 _________ $375 ________ Power easy Starting power smooth take offs power intricate maneuvers Red Max makes engine come alive power performance never expected can have power Its phone call away Power today running power fully other _____100% money back guaran tee com pletely sat isfied reason Red Max has power better idle better wear char acteriStics _____other fuel 22 Model Aviation RED MAX 0 RED MAX 5 RED MAX 10 RED MAX 12 RED MAX 15 RED MAX 20 RED MAX 25 RED MAX 40 RED MAX 50 RED MAX80 RED MAX66 RED MAX FUEL Order Form CALL OR USE THIS HANDY ORDER FORM TO SPEED YOUR ORDER FILL IN QTY ON THE LEFT THE TOTAL ON THE RIGHT Freight free qts gals No hand ling charge Freight collect drums Deduct 3% prepay Mix qty Total qty deter mines price SC ordere add 5% sales tax Dealer club prices avail Accept credit cards checks end COD COD add $2 per cartonl Personal checks may held until cleared OTYFUELiGAL 4GAL24GAL600AL128GaI 84GAL 1TOTAL* ordered MIXTURE DRUM AMT RED MAX PREMIUM FUELI fuel beginners ft sport flyers should use Avaii synthetic castor bland *999*749*729$689*599*150 *1152*864$841$772$691*212 *1266*965$939$862*772*266 _______ *1372*1029*1002$919$823$301 _______ *1466*1084*1065$977$875*335 _______ RED MAX RACING FUEL Trophy winner planes boats ft cars two boat blends castor ok up 40% nitro _____$1775$1332$1296*1190*1066$464 *1965$1474$1435*1317*1179*841 _____$2539$1905*1884*1701*1524$774 *3922$2192*2133*1966$1783$839 ___*3306$2479$2413$2214$1983$1084 _____53497*2622$2552$2343$3998$1162 RED MAX4-CYCLE FUEL Eliminates detonatIon ft klckbeck 4-cycle engines smoother idle ft power 10-4 CYCLE*1383 $1022 *995 *913 *818*296 15-4CYCLE*1555 *1166 *1135 *1042 *933*375 RED MAX HELICOPTER FUEL Extremely smooth running axtra defoamer drk color special heavy oil heiicplre 10 Helicopter$1391 $1040 $1016 $932 $835 j $309 15 Helicopter$1583 $1187 $1155 $1050 $950 RED MAX PERFORMANCE FUELI High flash point heavy oil use tuned pipes ducted fan ft other heavy dty app 5 Performance$1200*900$876$804$720 10 Performance $1391*1043*1016$932$835 iSPerformance$1583$1187$1155$1080*950 RED MAX PATTERN FUEL Proven best fuel pattern engines using pumps tuned pipes 5 Pattern$1196$ 895 $ 870 $ 796 *695 10 Pattern$1375$1035 $1009 $ 925 *825 iSPattern$1575 $1176 $1145 $1050 *940 SUPER TIGER 3000 FUEL Beet fuel Super Tiger 20004000 engines _____SuperTiger3000 $1288 $965 $939 $862 *772$266 RED MAX DIESEL FUEL Superior diesel beck list popular demand customers Bail Bearings$1767 $1326 $1290 *1184 *1080 DieealPrBemigel8B7$1426$1390$1284*1180 SMOKER FLUID beet smoker fluid 2 4 cycle engines Smoker Fluid$1266 $965 $939 $862 $772$266 CUSTOM BLENDED FUEL INORDIENTS Available type engine use Call price Mm gallon boats-cars-heiicoptars-spaed-pattern-scale% scale-kaven-lgnition-st3000 PLEASE PRINT tiAMP BOX CTO1 CITY CTATC7Sfl cvoIAArmnr next week next year Red Maxs secret gredients keep engine last ing longer Grend Total responding advertIsers mention read about Model Aviation