Control Line Aerobatics Ted Fancher MANY THANKS Lou Dudka doing Nats report last months issue third time Lou has filled did usual fine job may aware reason asking Lou help out year distinctly pleasurable past Having write report own success takes lot egogratification out event having ego least large norm eagerly sought out Lous help fortunate enough win Unfortunately poor Lou earned few strokes himself Nats agreeing write column lost chance see name lights Last year Chicopee Lou flying great solid position qualify Walker flyoff Unfortunately second flight twoflight finals inadvertently did four both Inside Outside Loops lost him pattern points caused him miss narrowly final five also coincidentally allowed eventual winner qualify fifth position year no denying Lou flew beautifully week long obvious contention whole ball game right up end record Lou second-highest qualifier Walker Flyoff placed strong fifth final bell rang success prime example payoff dedication hard work Just few personal comments years Nats First great big Thank volunteers usual worked could compete especially Big Art Adamisin ever-active helpmate Betty last hurrah active administration toplevel Stunt competition Thanks lot Art year preceded Special thanks also go Bev Wisniewski both year previous ones has served Control Line Category Director Nats little five-footer has stood 10 feet tall behalf numerous occasions Nats has received precious little recognition work attendance PAMPA Awards Banquet allowed Continued page 164 66 Model Aviation TWO OT mrst iaaies OT Lontroi Line stana guara over ULrAs morn prestigious awaro Walker Cup Betty Adamisin 1 Bev Wlsniewskl strong distaff element present future CL activities national basis talk AMA listens Australias Brian Eather proved nes fine gentleman impressing judges flying Nats tually finished well-deserved seventh Plane original Firecracker ST 60 Alas kids comes easy Eight-yearold Patrick Schuett Aurora IL takes sky nonchalance old pro probably cant figure old-timers get feet tangled up Bill Zimmer photo other hand Tom Thornton Appleton WI demonstrates balletic grace inher- WlndyUrtnowskiisavisionofsartorialsplerl ent discovering inverted flight Note dor redperfectly matching Relentgrace part body ap- less Its further derivation Eljay pearsto flowin attunementwiththe rest Bill theme Jim Greenaway finished fourth Zimmer shot photo recent Mu- 86 Nats Ted thinks ones best waukee Stunt Clinic flying Eljay-type date IMerry ChristmasI FABTRONICSI Make specially good flier whether flies 2 cycle 4 cycle CDI system will give better idle positive spark right time much less residue plane car boat etc plus fact makes cost fuel much less factor run engine pennies stead dollars Nearly engine can converted unit comes pre drilled disk sensor clamp mounting sensor engine 90 day warranty complete instructions con version timing procedure Unit operates 48 volt low current drain weight isa mere 2 oz size 2 x 2 x 75 inches Complete system comes ignition coil spark plug on/off switch igni tion cable also available seperately Bat teries included Please state engine size use ordering Installation very easy no special tools needed Automatic spark advance now available 4 cycle engines Complete System $6995 Cash MO certified check plus $300 P & H Personal checks take time clear Illinois residents please add tax Brochure $100 ndable purchase FABTRONICS 3751111 Rival Hi GaluSImuru III IlUl situation viewpoint worst possible combination events likely happen service attempt test thatcarefully Now Criteria Success What expect wing structure allowed crack long doesnt separate two pieces might concealed damage allowed crush dihedral increases easy change see measure Have designed something structure will yield breaking thus reveal overload Lee Renaud put -in-dia steel dowel wing root Aquila worked beautifully show overloads failing Total failure easy recognize Success may subtle test setup can simple have typical balsa-sheeted foam-core Pattern wing might able set up two sawhorses put pillows avoid crushing structure locally pile loads center section until satisfied other hand have Old-Timer wing lots skinny spars ribs may want spread load around bit carefully Again look F-14 picture idea distribute lift loads test loads themselves always pre sent problem After have designed airplane meet specific set conditions can sure have designed meet critical conditions will actually encounter service Simple swer cant have designed built flown crashed lot airplanes begin understand what works what doesnt keep records next design will always easier will constantly starting over designs will generally overweight well remember Sun-Fli 4-20 large maple block wing panel landing gear block sup ported edges several soft 1/16 balsa ribs tiny plywood doublers end wing sheeting around block blocks tore out time didnt wheels swung back punched through lower surface wing operating turf Du Bro wheels plans building instructions didnt say anything about installation might have satisfac tory flying off pavement flying off turf thinner wheels difficult find out what structure has designed what will withstand unless test Crash loads expect shed few parts crash Ideally primary struc ture should protect radio system engine much possible Thats good RC designs have lot plywood around radio compartment see Bob Aberle design US Navy says cockpit must protect pilot crash exerts 40-G forward 20-G downloads Should want test criteria could push down forward up back both items want test largest load would need would about 447 x 6 lb lb extension mount chainsaw engine Mounts 40 60size engines should resist about 50 lb radio tray four servos switch harness receiver battery must resist about 35 lb Servo rails must resist about 5 lb per servo Handling transportation cludes causes hangar rash Very little attention paid loads until plan pack ship aircraft Well come back later George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 CL Aerobatics/Fancher Continued page 66 present extend token appreciation gratitude wish add printed thanks love Rev Id also like acknowledge help several people owe personal thanks Lou Dudka Glen Meador whipping up beautiful foam wing short notice two years ago found time complete spring Large James Greenaway man expertise greatly admire notwithstanding fact dont agree everything supplying modified hemi-head used good advantage ST 46 smoother economical stock squish-band head slight loss power especially good friends Gary McClellan Don McClave both qualified finals themselves gave unselfishiy expertise support became clear would competing top prize Thanks Last certainly least Thank kind enough call write congratulations thoughtfulness greatly appreciated thought might interesting relate TME DIFFERENT FOAM MODEL ILowest Cost Med sing Send $100 latest fine-grain sheet foam I developments foam samples FREE foam 3 sources Hard Shell finishes now LIable Dozens easy build foam air plane plans Peanuts RIC FOAM SCALE MODELS SS2MA St Croix Falls WI 84024 164Model Aviation IMPORTED DIESELS A-UAurorsD-CEDMVVSMUtsEnyS PAWTspIln Standard R/C.0864S Acre & Marine VlntageSpert eat Send *100 InformatIon CARLSON ENGINE IMPORTS 814 East Marconi Phoeiilx AZ 85022 WORLOS BIOGES SCALE PHOTO SERVICE 500 PHOTO RECKS PLANS EWS PHOTO-PACKSPLANS CNLARGING CASE E-ISglng CO Catalog S3O0 SCALE PLANS PHOTO SERVICE 3209 Mednon Gepsboo NC 27403 Phone 19152925239 No COIIOCI couple factors proved instrumental victory year First selected tactical approach achieving goal second learned valuable lesson about making engines work As reported two months ago experiment Enya four-stroke proved fruitless left brand new alrplane very good flier weighed 59 ozon ragged edge too heavy basically-stock ST 46s alrplane capable flying some precise maneuvers long wasnt pressed too hard After couple practice sessions Don Gary decided alrplane could consistently fly fairly high-scoring maneuvers 32- 35-point rangebut pushed fly really hard corners super-small maneuvers search another point two would inevit ably cause blow couple maneuvers badly Unfortunately has experience couple poor maneuvers pattern will adversely affect scores others well could really nail couple maneuvers overall score would suffer result obviously poor ones night before qualifying decided plan action would fly conservatively try give judges obvious reasons socking would fly no smaller no tighter no faster confident flying well 99% time Although flew few wowwww maneuvers during entire week also flew awwwwful maneu ver results speak themselves moral story take stock assets debits going competition devise game plan based evaluation Size up competition equipment physical condition weather Set real istic goal local champ goal quite honestly will likely embar rass yourself should probably fly con servatively avoid opening doors upand-coming hotshots fly through other hand up and-comers have very little lose letting hang out within honest limits your equipments ability Avoid trying change style accommodate some perceived pre ference part judges perception correct chance successfully changing style couple flights ranges slim Continue good job showing judge what doesnt like return fly another daywith luck itll front discerning judge Engines Over last 10 years have become pretty well-known inconsistent en gine runs ST 46s year ran like clocks week long Did find secret ask Well think found Give try major problem has always getting engine would run same speed entire tankflight after flight after flight Also needle valves incredibly sensitivethe tiniest adjustment making large changes always expected direction would get occasional good run among variety too slow too fast ones until after anywhere maybe 50 flights engine would simply break two-cycle couple laps after takeoff stay flew entire 1984 Walker Flyoff Reno dead two-cycle very reason Shortly before years Nats began have problem again started usual fix rearranging praying Upon disassembly however noticed dlscoloration several places side piston below ring color matched blue hue fuel using classic indlcation blowby condition seal between ring cylinder wall broken explosive charge escapes combustion chamber thereby re ducing cylinder pressure output torque engine temporarily reassembled piston cylinder sleeve noticed areas discoloration occurred piston corre sponded areas cylinder walls polished appearance two pieces evidence got old think tank cranked up conclusions fix knock wood has proved 100% successful point What feel happening could likened hydroplaning phenomenon occurs tire running surface covered water some point depending velocity tire pressure layer water builds up between tire road surface contact tween two lost resulting loss ability control direction tire inability stop vehicle tire mounted Hydroplaning significant problem instance attempting stop heavy air liner wet runway Obviously slick tire much suscepti ble hydroplaning tread ever hydroplaning can problem treaded tires too solution has employed full-scale aviation has cut grooves surface runways combination treaded tires grooved runway effectively eliminates hydroplaning allowing com pressed water place dissipate theory piston ring will effect hydroplane layer oil over highlypolished areas cylinder wall destroying seal consequently reducing cylinder pressure necessary consistent fourcycle operation two-cycle engine results erratic super-sensitive-to-the-needle speed-stunt Tigres fix consists purchasing inexpensive brake cylinder hone automotive parts store chucking up cheapie drill press running slowest possible speed hone cylinder walls until uniformly dull appearance approximate crosshatch pat tern tiny scratches made cylinder hone act like grooves runway allowing oil December 1986 165 ziJ f7 N 0 Co 0 x ih 0 x N Co CD 1 I m z 0 z z C, 0 -a 0 -a m I m 0 0 0 0 -1 CD C 0 0 CD 6 0 Co 0 0 01 0 WORLD Vacation Handy Disney World Kennedy Space Center rest Florida 3 Bedrooms sleeps 8 Kitchen A/C Pool Tennis lots B/C flying Nov-May $500 wk / Jane-Oct 0480 wk / nightly & nssnthly rates also available 617 528-4043 P AW DIESELS Englands Finest 049 35 RIC STD Sud $100 list Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 RADIO SOUTH K Os OS 25 FP 0525 FSR OS4OFP OS4OFSR OS2OFC OS4OFC 0S61 FC OS9OFC 4250 5750 4950 8350 8950 10950 14350 17250 ACE Field Charger Chargemaster Dual Charger 12V Charger Voitmaster Tachmaster 4-20 Kit 4-40 Kit 4-60 Kit 3450 3950 3950 2750 2750 3150 3350 4150 5550 FUTABA FP-2NL5700 FP-2PKA-S289000 FP-4NL-S3810700 FP-4NL-S3312200 FP-5F6K AM16900 FP-5F6K FM18500 FP-7F6K AM19900 FP-7F6K FM21500 Also Carry Ooldberg Duhn, MAC Zinger K & B Rocket City Dave Brown much mere Orders COD VISA MC ge actual UPS chargesOPEN 10 6 EST904 478-6745 No handling charges es subject change notice 43W Nine Mile Rd Pensacola FL 32414 lubricate causing ring hydro plane Use liberal amounts oil hone measured 30 seconds time stopping time clean inspect cylinder walls Constantly work cylinder in-and-out figure-eight pattern achieve uniform honing pattern Since rings nearly new test validity theory did replace merely cleaned otT visible varnish buildup left pistons reassembled engines ran bit block put back work three have proven trouble-free dependable very powerful no guarantees business have great confidence value modification especially Supertigres having inconsistent runs such have described engine fails respond traditional cures plugs needle settings etc give try fact shoulda tried four-cycles before sold em Dam Ted Fancher 158 Flying Cloud Isle Foster City CA 94404 CL Scale/Boss Continued page 67 wood NY Pete Hermans Whippany NJ first-time entrants Scale competition Richs Sport Scale P-5 1 finished third seen October column Pete Hermans also finished third Profile P-39 shown month can hope maybe next year weather will cooperate turnout will much better Please send correspondenceand espe cially photosrelating CL Scale Bill Boss 77-06 269 Street New Hyde Park NY 11040 CL Combat/Johnson Continued page 68 high win-minus-loss system pos sible would give truly accurate picture top fliers winning percentages Probably re suIts would change very little regardless system used bunch things have delayed getting Top 20 Bladder Grabber winners print Both deadline-date submitting column need publish 86 Nats stories have caused delay Well youve seen Top 20 now Ill turn Bladder Grabber certainly Big Daddy Combat meets What 48 entrants over country flying tripleelimination contest $8000 prizes BG news Almost 160 matches flown between noon Saturday Sunday evening very few problems couple rematches John Salvin Event Director receives high marks fine job weather touch rainy moderate temperatures Oh want winners Michael Willcox defeated Open fliers came away enough Carver Corp stereo equipment make papa Pat Willcox have rewire house Michael has learned right moves really deserved win look Nats results youll see Michael flew Open contestants placed several events Fellow Texan Richard Stubblefield placed second behind kid Howard Rush third followed another Northwest flier John Thompson Mike Petri San Francisco area placed fifth People seem keep coming back year after year years entry list about double Nationals Fox Mfg sent half-dozen new Four-Cycle Special glow plugs testing Al though theyre designed use four-stroke engines claimed very good twostrokers too slipped two plugs goodrunning Slow Combat engines Nats unsuspecting owners never noticed good engines kept running before weekend Ill find some bad-running engines try plug Weve flameout-runs burbles outside ma neuvers good engine will run plug youve realigned pin poor engine usually wont make unless battery permanently attached plug other product very nice control handle Sagan Industries call Pro-Grip works well comfortable hand doesnt break toss asphalt Its also possible get double-banded grip fly Racing events poorlytrimmed Combat models pull lot Im really used feel Hot Rock handle took little getting used much better start other handle knife-edge grip Hot Rock handles have out production bunch years line spacing handle can reduced AA flying training new pilots Both plugs handle look like good things try should available through normal dealers look ad MACA Newsletter Fanfare please now event Everyman Stealth Combat Stealth Bombers big thing now although guess Stealth Combat model would give Event Director fits trying find crash concept local flying unofficial Combat grassroots level model can Slow Combat model everyone area has access may Cartier SC-2 Flite Streak Phantom number good-flying airplanes wing has fairly good-sized because going add some accessories Regardless model chosen everyone must use exact same design power plant dry weights mustbe same engine should mildly-tuned Stunt-type muffler thats what makes Stealth Most manufacturers make nice engine/muffler com bination similar 05 35 Use nylon props very mild fuel two-wheel gear can use stooge release model solo flying during matches friend Most people Ive told about concept have immediately thought ways hop-up combination Dont think about extracting performance Instead try make models dead Theoretically slightly better pilot would take full five minutes chase opponent finally get cut two Model engine performance wouldnt have anything winning matches pilot skill cunning patience would everything So far just concept have couple SC-2s 05 35 K&B try muffler will way well able fly type Combat plane metropolitan area think Ill further disguise some tassels like put kitesand maybe stationary kite two air camou flageContinued page 168 166Model Aviation Al SANYO Batteries AA 500 maea 245 1ASC 600 maea 365 800 maea 375 SC 1200 maea385 500 ma Pack 48B975 1200 ma Pack48V1975
Edition: Model Aviation - 1986/12
Page Numbers: 66, 164, 165, 166
Control Line Aerobatics Ted Fancher MANY THANKS Lou Dudka doing Nats report last months issue third time Lou has filled did usual fine job may aware reason asking Lou help out year distinctly pleasurable past Having write report own success takes lot egogratification out event having ego least large norm eagerly sought out Lous help fortunate enough win Unfortunately poor Lou earned few strokes himself Nats agreeing write column lost chance see name lights Last year Chicopee Lou flying great solid position qualify Walker flyoff Unfortunately second flight twoflight finals inadvertently did four both Inside Outside Loops lost him pattern points caused him miss narrowly final five also coincidentally allowed eventual winner qualify fifth position year no denying Lou flew beautifully week long obvious contention whole ball game right up end record Lou second-highest qualifier Walker Flyoff placed strong fifth final bell rang success prime example payoff dedication hard work Just few personal comments years Nats First great big Thank volunteers usual worked could compete especially Big Art Adamisin ever-active helpmate Betty last hurrah active administration toplevel Stunt competition Thanks lot Art year preceded Special thanks also go Bev Wisniewski both year previous ones has served Control Line Category Director Nats little five-footer has stood 10 feet tall behalf numerous occasions Nats has received precious little recognition work attendance PAMPA Awards Banquet allowed Continued page 164 66 Model Aviation TWO OT mrst iaaies OT Lontroi Line stana guara over ULrAs morn prestigious awaro Walker Cup Betty Adamisin 1 Bev Wlsniewskl strong distaff element present future CL activities national basis talk AMA listens Australias Brian Eather proved nes fine gentleman impressing judges flying Nats tually finished well-deserved seventh Plane original Firecracker ST 60 Alas kids comes easy Eight-yearold Patrick Schuett Aurora IL takes sky nonchalance old pro probably cant figure old-timers get feet tangled up Bill Zimmer photo other hand Tom Thornton Appleton WI demonstrates balletic grace inher- WlndyUrtnowskiisavisionofsartorialsplerl ent discovering inverted flight Note dor redperfectly matching Relentgrace part body ap- less Its further derivation Eljay pearsto flowin attunementwiththe rest Bill theme Jim Greenaway finished fourth Zimmer shot photo recent Mu- 86 Nats Ted thinks ones best waukee Stunt Clinic flying Eljay-type date IMerry ChristmasI FABTRONICSI Make specially good flier whether flies 2 cycle 4 cycle CDI system will give better idle positive spark right time much less residue plane car boat etc plus fact makes cost fuel much less factor run engine pennies stead dollars Nearly engine can converted unit comes pre drilled disk sensor clamp mounting sensor engine 90 day warranty complete instructions con version timing procedure Unit operates 48 volt low current drain weight isa mere 2 oz size 2 x 2 x 75 inches Complete system comes ignition coil spark plug on/off switch igni tion cable also available seperately Bat teries included Please state engine size use ordering Installation very easy no special tools needed Automatic spark advance now available 4 cycle engines Complete System $6995 Cash MO certified check plus $300 P & H Personal checks take time clear Illinois residents please add tax Brochure $100 ndable purchase FABTRONICS 3751111 Rival Hi GaluSImuru III IlUl situation viewpoint worst possible combination events likely happen service attempt test thatcarefully Now Criteria Success What expect wing structure allowed crack long doesnt separate two pieces might concealed damage allowed crush dihedral increases easy change see measure Have designed something structure will yield breaking thus reveal overload Lee Renaud put -in-dia steel dowel wing root Aquila worked beautifully show overloads failing Total failure easy recognize Success may subtle test setup can simple have typical balsa-sheeted foam-core Pattern wing might able set up two sawhorses put pillows avoid crushing structure locally pile loads center section until satisfied other hand have Old-Timer wing lots skinny spars ribs may want spread load around bit carefully Again look F-14 picture idea distribute lift loads test loads themselves always pre sent problem After have designed airplane meet specific set conditions can sure have designed meet critical conditions will actually encounter service Simple swer cant have designed built flown crashed lot airplanes begin understand what works what doesnt keep records next design will always easier will constantly starting over designs will generally overweight well remember Sun-Fli 4-20 large maple block wing panel landing gear block sup ported edges several soft 1/16 balsa ribs tiny plywood doublers end wing sheeting around block blocks tore out time didnt wheels swung back punched through lower surface wing operating turf Du Bro wheels plans building instructions didnt say anything about installation might have satisfac tory flying off pavement flying off turf thinner wheels difficult find out what structure has designed what will withstand unless test Crash loads expect shed few parts crash Ideally primary struc ture should protect radio system engine much possible Thats good RC designs have lot plywood around radio compartment see Bob Aberle design US Navy says cockpit must protect pilot crash exerts 40-G forward 20-G downloads Should want test criteria could push down forward up back both items want test largest load would need would about 447 x 6 lb lb extension mount chainsaw engine Mounts 40 60size engines should resist about 50 lb radio tray four servos switch harness receiver battery must resist about 35 lb Servo rails must resist about 5 lb per servo Handling transportation cludes causes hangar rash Very little attention paid loads until plan pack ship aircraft Well come back later George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 CL Aerobatics/Fancher Continued page 66 present extend token appreciation gratitude wish add printed thanks love Rev Id also like acknowledge help several people owe personal thanks Lou Dudka Glen Meador whipping up beautiful foam wing short notice two years ago found time complete spring Large James Greenaway man expertise greatly admire notwithstanding fact dont agree everything supplying modified hemi-head used good advantage ST 46 smoother economical stock squish-band head slight loss power especially good friends Gary McClellan Don McClave both qualified finals themselves gave unselfishiy expertise support became clear would competing top prize Thanks Last certainly least Thank kind enough call write congratulations thoughtfulness greatly appreciated thought might interesting relate TME DIFFERENT FOAM MODEL ILowest Cost Med sing Send $100 latest fine-grain sheet foam I developments foam samples FREE foam 3 sources Hard Shell finishes now LIable Dozens easy build foam air plane plans Peanuts RIC FOAM SCALE MODELS SS2MA St Croix Falls WI 84024 164Model Aviation IMPORTED DIESELS A-UAurorsD-CEDMVVSMUtsEnyS PAWTspIln Standard R/C.0864S Acre & Marine VlntageSpert eat Send *100 InformatIon CARLSON ENGINE IMPORTS 814 East Marconi Phoeiilx AZ 85022 WORLOS BIOGES SCALE PHOTO SERVICE 500 PHOTO RECKS PLANS EWS PHOTO-PACKSPLANS CNLARGING CASE E-ISglng CO Catalog S3O0 SCALE PLANS PHOTO SERVICE 3209 Mednon Gepsboo NC 27403 Phone 19152925239 No COIIOCI couple factors proved instrumental victory year First selected tactical approach achieving goal second learned valuable lesson about making engines work As reported two months ago experiment Enya four-stroke proved fruitless left brand new alrplane very good flier weighed 59 ozon ragged edge too heavy basically-stock ST 46s alrplane capable flying some precise maneuvers long wasnt pressed too hard After couple practice sessions Don Gary decided alrplane could consistently fly fairly high-scoring maneuvers 32- 35-point rangebut pushed fly really hard corners super-small maneuvers search another point two would inevit ably cause blow couple maneuvers badly Unfortunately has experience couple poor maneuvers pattern will adversely affect scores others well could really nail couple maneuvers overall score would suffer result obviously poor ones night before qualifying decided plan action would fly conservatively try give judges obvious reasons socking would fly no smaller no tighter no faster confident flying well 99% time Although flew few wowwww maneuvers during entire week also flew awwwwful maneu ver results speak themselves moral story take stock assets debits going competition devise game plan based evaluation Size up competition equipment physical condition weather Set real istic goal local champ goal quite honestly will likely embar rass yourself should probably fly con servatively avoid opening doors upand-coming hotshots fly through other hand up and-comers have very little lose letting hang out within honest limits your equipments ability Avoid trying change style accommodate some perceived pre ference part judges perception correct chance successfully changing style couple flights ranges slim Continue good job showing judge what doesnt like return fly another daywith luck itll front discerning judge Engines Over last 10 years have become pretty well-known inconsistent en gine runs ST 46s year ran like clocks week long Did find secret ask Well think found Give try major problem has always getting engine would run same speed entire tankflight after flight after flight Also needle valves incredibly sensitivethe tiniest adjustment making large changes always expected direction would get occasional good run among variety too slow too fast ones until after anywhere maybe 50 flights engine would simply break two-cycle couple laps after takeoff stay flew entire 1984 Walker Flyoff Reno dead two-cycle very reason Shortly before years Nats began have problem again started usual fix rearranging praying Upon disassembly however noticed dlscoloration several places side piston below ring color matched blue hue fuel using classic indlcation blowby condition seal between ring cylinder wall broken explosive charge escapes combustion chamber thereby re ducing cylinder pressure output torque engine temporarily reassembled piston cylinder sleeve noticed areas discoloration occurred piston corre sponded areas cylinder walls polished appearance two pieces evidence got old think tank cranked up conclusions fix knock wood has proved 100% successful point What feel happening could likened hydroplaning phenomenon occurs tire running surface covered water some point depending velocity tire pressure layer water builds up between tire road surface contact tween two lost resulting loss ability control direction tire inability stop vehicle tire mounted Hydroplaning significant problem instance attempting stop heavy air liner wet runway Obviously slick tire much suscepti ble hydroplaning tread ever hydroplaning can problem treaded tires too solution has employed full-scale aviation has cut grooves surface runways combination treaded tires grooved runway effectively eliminates hydroplaning allowing com pressed water place dissipate theory piston ring will effect hydroplane layer oil over highlypolished areas cylinder wall destroying seal consequently reducing cylinder pressure necessary consistent fourcycle operation two-cycle engine results erratic super-sensitive-to-the-needle speed-stunt Tigres fix consists purchasing inexpensive brake cylinder hone automotive parts store chucking up cheapie drill press running slowest possible speed hone cylinder walls until uniformly dull appearance approximate crosshatch pat tern tiny scratches made cylinder hone act like grooves runway allowing oil December 1986 165 ziJ f7 N 0 Co 0 x ih 0 x N Co CD 1 I m z 0 z z C, 0 -a 0 -a m I m 0 0 0 0 -1 CD C 0 0 CD 6 0 Co 0 0 01 0 WORLD Vacation Handy Disney World Kennedy Space Center rest Florida 3 Bedrooms sleeps 8 Kitchen A/C Pool Tennis lots B/C flying Nov-May $500 wk / Jane-Oct 0480 wk / nightly & nssnthly rates also available 617 528-4043 P AW DIESELS Englands Finest 049 35 RIC STD Sud $100 list Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 RADIO SOUTH K Os OS 25 FP 0525 FSR OS4OFP OS4OFSR OS2OFC OS4OFC 0S61 FC OS9OFC 4250 5750 4950 8350 8950 10950 14350 17250 ACE Field Charger Chargemaster Dual Charger 12V Charger Voitmaster Tachmaster 4-20 Kit 4-40 Kit 4-60 Kit 3450 3950 3950 2750 2750 3150 3350 4150 5550 FUTABA FP-2NL5700 FP-2PKA-S289000 FP-4NL-S3810700 FP-4NL-S3312200 FP-5F6K AM16900 FP-5F6K FM18500 FP-7F6K AM19900 FP-7F6K FM21500 Also Carry Ooldberg Duhn, MAC Zinger K & B Rocket City Dave Brown much mere Orders COD VISA MC ge actual UPS chargesOPEN 10 6 EST904 478-6745 No handling charges es subject change notice 43W Nine Mile Rd Pensacola FL 32414 lubricate causing ring hydro plane Use liberal amounts oil hone measured 30 seconds time stopping time clean inspect cylinder walls Constantly work cylinder in-and-out figure-eight pattern achieve uniform honing pattern Since rings nearly new test validity theory did replace merely cleaned otT visible varnish buildup left pistons reassembled engines ran bit block put back work three have proven trouble-free dependable very powerful no guarantees business have great confidence value modification especially Supertigres having inconsistent runs such have described engine fails respond traditional cures plugs needle settings etc give try fact shoulda tried four-cycles before sold em Dam Ted Fancher 158 Flying Cloud Isle Foster City CA 94404 CL Scale/Boss Continued page 67 wood NY Pete Hermans Whippany NJ first-time entrants Scale competition Richs Sport Scale P-5 1 finished third seen October column Pete Hermans also finished third Profile P-39 shown month can hope maybe next year weather will cooperate turnout will much better Please send correspondenceand espe cially photosrelating CL Scale Bill Boss 77-06 269 Street New Hyde Park NY 11040 CL Combat/Johnson Continued page 68 high win-minus-loss system pos sible would give truly accurate picture top fliers winning percentages Probably re suIts would change very little regardless system used bunch things have delayed getting Top 20 Bladder Grabber winners print Both deadline-date submitting column need publish 86 Nats stories have caused delay Well youve seen Top 20 now Ill turn Bladder Grabber certainly Big Daddy Combat meets What 48 entrants over country flying tripleelimination contest $8000 prizes BG news Almost 160 matches flown between noon Saturday Sunday evening very few problems couple rematches John Salvin Event Director receives high marks fine job weather touch rainy moderate temperatures Oh want winners Michael Willcox defeated Open fliers came away enough Carver Corp stereo equipment make papa Pat Willcox have rewire house Michael has learned right moves really deserved win look Nats results youll see Michael flew Open contestants placed several events Fellow Texan Richard Stubblefield placed second behind kid Howard Rush third followed another Northwest flier John Thompson Mike Petri San Francisco area placed fifth People seem keep coming back year after year years entry list about double Nationals Fox Mfg sent half-dozen new Four-Cycle Special glow plugs testing Al though theyre designed use four-stroke engines claimed very good twostrokers too slipped two plugs goodrunning Slow Combat engines Nats unsuspecting owners never noticed good engines kept running before weekend Ill find some bad-running engines try plug Weve flameout-runs burbles outside ma neuvers good engine will run plug youve realigned pin poor engine usually wont make unless battery permanently attached plug other product very nice control handle Sagan Industries call Pro-Grip works well comfortable hand doesnt break toss asphalt Its also possible get double-banded grip fly Racing events poorlytrimmed Combat models pull lot Im really used feel Hot Rock handle took little getting used much better start other handle knife-edge grip Hot Rock handles have out production bunch years line spacing handle can reduced AA flying training new pilots Both plugs handle look like good things try should available through normal dealers look ad MACA Newsletter Fanfare please now event Everyman Stealth Combat Stealth Bombers big thing now although guess Stealth Combat model would give Event Director fits trying find crash concept local flying unofficial Combat grassroots level model can Slow Combat model everyone area has access may Cartier SC-2 Flite Streak Phantom number good-flying airplanes wing has fairly good-sized because going add some accessories Regardless model chosen everyone must use exact same design power plant dry weights mustbe same engine should mildly-tuned Stunt-type muffler thats what makes Stealth Most manufacturers make nice engine/muffler com bination similar 05 35 Use nylon props very mild fuel two-wheel gear can use stooge release model solo flying during matches friend Most people Ive told about concept have immediately thought ways hop-up combination Dont think about extracting performance Instead try make models dead Theoretically slightly better pilot would take full five minutes chase opponent finally get cut two Model engine performance wouldnt have anything winning matches pilot skill cunning patience would everything So far just concept have couple SC-2s 05 35 K&B try muffler will way well able fly type Combat plane metropolitan area think Ill further disguise some tassels like put kitesand maybe stationary kite two air camou flageContinued page 168 166Model Aviation Al SANYO Batteries AA 500 maea 245 1ASC 600 maea 365 800 maea 375 SC 1200 maea385 500 ma Pack 48B975 1200 ma Pack48V1975
Edition: Model Aviation - 1986/12
Page Numbers: 66, 164, 165, 166
Control Line Aerobatics Ted Fancher MANY THANKS Lou Dudka doing Nats report last months issue third time Lou has filled did usual fine job may aware reason asking Lou help out year distinctly pleasurable past Having write report own success takes lot egogratification out event having ego least large norm eagerly sought out Lous help fortunate enough win Unfortunately poor Lou earned few strokes himself Nats agreeing write column lost chance see name lights Last year Chicopee Lou flying great solid position qualify Walker flyoff Unfortunately second flight twoflight finals inadvertently did four both Inside Outside Loops lost him pattern points caused him miss narrowly final five also coincidentally allowed eventual winner qualify fifth position year no denying Lou flew beautifully week long obvious contention whole ball game right up end record Lou second-highest qualifier Walker Flyoff placed strong fifth final bell rang success prime example payoff dedication hard work Just few personal comments years Nats First great big Thank volunteers usual worked could compete especially Big Art Adamisin ever-active helpmate Betty last hurrah active administration toplevel Stunt competition Thanks lot Art year preceded Special thanks also go Bev Wisniewski both year previous ones has served Control Line Category Director Nats little five-footer has stood 10 feet tall behalf numerous occasions Nats has received precious little recognition work attendance PAMPA Awards Banquet allowed Continued page 164 66 Model Aviation TWO OT mrst iaaies OT Lontroi Line stana guara over ULrAs morn prestigious awaro Walker Cup Betty Adamisin 1 Bev Wlsniewskl strong distaff element present future CL activities national basis talk AMA listens Australias Brian Eather proved nes fine gentleman impressing judges flying Nats tually finished well-deserved seventh Plane original Firecracker ST 60 Alas kids comes easy Eight-yearold Patrick Schuett Aurora IL takes sky nonchalance old pro probably cant figure old-timers get feet tangled up Bill Zimmer photo other hand Tom Thornton Appleton WI demonstrates balletic grace inher- WlndyUrtnowskiisavisionofsartorialsplerl ent discovering inverted flight Note dor redperfectly matching Relentgrace part body ap- less Its further derivation Eljay pearsto flowin attunementwiththe rest Bill theme Jim Greenaway finished fourth Zimmer shot photo recent Mu- 86 Nats Ted thinks ones best waukee Stunt Clinic flying Eljay-type date IMerry ChristmasI FABTRONICSI Make specially good flier whether flies 2 cycle 4 cycle CDI system will give better idle positive spark right time much less residue plane car boat etc plus fact makes cost fuel much less factor run engine pennies stead dollars Nearly engine can converted unit comes pre drilled disk sensor clamp mounting sensor engine 90 day warranty complete instructions con version timing procedure Unit operates 48 volt low current drain weight isa mere 2 oz size 2 x 2 x 75 inches Complete system comes ignition coil spark plug on/off switch igni tion cable also available seperately Bat teries included Please state engine size use ordering Installation very easy no special tools needed Automatic spark advance now available 4 cycle engines Complete System $6995 Cash MO certified check plus $300 P & H Personal checks take time clear Illinois residents please add tax Brochure $100 ndable purchase FABTRONICS 3751111 Rival Hi GaluSImuru III IlUl situation viewpoint worst possible combination events likely happen service attempt test thatcarefully Now Criteria Success What expect wing structure allowed crack long doesnt separate two pieces might concealed damage allowed crush dihedral increases easy change see measure Have designed something structure will yield breaking thus reveal overload Lee Renaud put -in-dia steel dowel wing root Aquila worked beautifully show overloads failing Total failure easy recognize Success may subtle test setup can simple have typical balsa-sheeted foam-core Pattern wing might able set up two sawhorses put pillows avoid crushing structure locally pile loads center section until satisfied other hand have Old-Timer wing lots skinny spars ribs may want spread load around bit carefully Again look F-14 picture idea distribute lift loads test loads themselves always pre sent problem After have designed airplane meet specific set conditions can sure have designed meet critical conditions will actually encounter service Simple swer cant have designed built flown crashed lot airplanes begin understand what works what doesnt keep records next design will always easier will constantly starting over designs will generally overweight well remember Sun-Fli 4-20 large maple block wing panel landing gear block sup ported edges several soft 1/16 balsa ribs tiny plywood doublers end wing sheeting around block blocks tore out time didnt wheels swung back punched through lower surface wing operating turf Du Bro wheels plans building instructions didnt say anything about installation might have satisfac tory flying off pavement flying off turf thinner wheels difficult find out what structure has designed what will withstand unless test Crash loads expect shed few parts crash Ideally primary struc ture should protect radio system engine much possible Thats good RC designs have lot plywood around radio compartment see Bob Aberle design US Navy says cockpit must protect pilot crash exerts 40-G forward 20-G downloads Should want test criteria could push down forward up back both items want test largest load would need would about 447 x 6 lb lb extension mount chainsaw engine Mounts 40 60size engines should resist about 50 lb radio tray four servos switch harness receiver battery must resist about 35 lb Servo rails must resist about 5 lb per servo Handling transportation cludes causes hangar rash Very little attention paid loads until plan pack ship aircraft Well come back later George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 CL Aerobatics/Fancher Continued page 66 present extend token appreciation gratitude wish add printed thanks love Rev Id also like acknowledge help several people owe personal thanks Lou Dudka Glen Meador whipping up beautiful foam wing short notice two years ago found time complete spring Large James Greenaway man expertise greatly admire notwithstanding fact dont agree everything supplying modified hemi-head used good advantage ST 46 smoother economical stock squish-band head slight loss power especially good friends Gary McClellan Don McClave both qualified finals themselves gave unselfishiy expertise support became clear would competing top prize Thanks Last certainly least Thank kind enough call write congratulations thoughtfulness greatly appreciated thought might interesting relate TME DIFFERENT FOAM MODEL ILowest Cost Med sing Send $100 latest fine-grain sheet foam I developments foam samples FREE foam 3 sources Hard Shell finishes now LIable Dozens easy build foam air plane plans Peanuts RIC FOAM SCALE MODELS SS2MA St Croix Falls WI 84024 164Model Aviation IMPORTED DIESELS A-UAurorsD-CEDMVVSMUtsEnyS PAWTspIln Standard R/C.0864S Acre & Marine VlntageSpert eat Send *100 InformatIon CARLSON ENGINE IMPORTS 814 East Marconi Phoeiilx AZ 85022 WORLOS BIOGES SCALE PHOTO SERVICE 500 PHOTO RECKS PLANS EWS PHOTO-PACKSPLANS CNLARGING CASE E-ISglng CO Catalog S3O0 SCALE PLANS PHOTO SERVICE 3209 Mednon Gepsboo NC 27403 Phone 19152925239 No COIIOCI couple factors proved instrumental victory year First selected tactical approach achieving goal second learned valuable lesson about making engines work As reported two months ago experiment Enya four-stroke proved fruitless left brand new alrplane very good flier weighed 59 ozon ragged edge too heavy basically-stock ST 46s alrplane capable flying some precise maneuvers long wasnt pressed too hard After couple practice sessions Don Gary decided alrplane could consistently fly fairly high-scoring maneuvers 32- 35-point rangebut pushed fly really hard corners super-small maneuvers search another point two would inevit ably cause blow couple maneuvers badly Unfortunately has experience couple poor maneuvers pattern will adversely affect scores others well could really nail couple maneuvers overall score would suffer result obviously poor ones night before qualifying decided plan action would fly conservatively try give judges obvious reasons socking would fly no smaller no tighter no faster confident flying well 99% time Although flew few wowwww maneuvers during entire week also flew awwwwful maneu ver results speak themselves moral story take stock assets debits going competition devise game plan based evaluation Size up competition equipment physical condition weather Set real istic goal local champ goal quite honestly will likely embar rass yourself should probably fly con servatively avoid opening doors upand-coming hotshots fly through other hand up and-comers have very little lose letting hang out within honest limits your equipments ability Avoid trying change style accommodate some perceived pre ference part judges perception correct chance successfully changing style couple flights ranges slim Continue good job showing judge what doesnt like return fly another daywith luck itll front discerning judge Engines Over last 10 years have become pretty well-known inconsistent en gine runs ST 46s year ran like clocks week long Did find secret ask Well think found Give try major problem has always getting engine would run same speed entire tankflight after flight after flight Also needle valves incredibly sensitivethe tiniest adjustment making large changes always expected direction would get occasional good run among variety too slow too fast ones until after anywhere maybe 50 flights engine would simply break two-cycle couple laps after takeoff stay flew entire 1984 Walker Flyoff Reno dead two-cycle very reason Shortly before years Nats began have problem again started usual fix rearranging praying Upon disassembly however noticed dlscoloration several places side piston below ring color matched blue hue fuel using classic indlcation blowby condition seal between ring cylinder wall broken explosive charge escapes combustion chamber thereby re ducing cylinder pressure output torque engine temporarily reassembled piston cylinder sleeve noticed areas discoloration occurred piston corre sponded areas cylinder walls polished appearance two pieces evidence got old think tank cranked up conclusions fix knock wood has proved 100% successful point What feel happening could likened hydroplaning phenomenon occurs tire running surface covered water some point depending velocity tire pressure layer water builds up between tire road surface contact tween two lost resulting loss ability control direction tire inability stop vehicle tire mounted Hydroplaning significant problem instance attempting stop heavy air liner wet runway Obviously slick tire much suscepti ble hydroplaning tread ever hydroplaning can problem treaded tires too solution has employed full-scale aviation has cut grooves surface runways combination treaded tires grooved runway effectively eliminates hydroplaning allowing com pressed water place dissipate theory piston ring will effect hydroplane layer oil over highlypolished areas cylinder wall destroying seal consequently reducing cylinder pressure necessary consistent fourcycle operation two-cycle engine results erratic super-sensitive-to-the-needle speed-stunt Tigres fix consists purchasing inexpensive brake cylinder hone automotive parts store chucking up cheapie drill press running slowest possible speed hone cylinder walls until uniformly dull appearance approximate crosshatch pat tern tiny scratches made cylinder hone act like grooves runway allowing oil December 1986 165 ziJ f7 N 0 Co 0 x ih 0 x N Co CD 1 I m z 0 z z C, 0 -a 0 -a m I m 0 0 0 0 -1 CD C 0 0 CD 6 0 Co 0 0 01 0 WORLD Vacation Handy Disney World Kennedy Space Center rest Florida 3 Bedrooms sleeps 8 Kitchen A/C Pool Tennis lots B/C flying Nov-May $500 wk / Jane-Oct 0480 wk / nightly & nssnthly rates also available 617 528-4043 P AW DIESELS Englands Finest 049 35 RIC STD Sud $100 list Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 RADIO SOUTH K Os OS 25 FP 0525 FSR OS4OFP OS4OFSR OS2OFC OS4OFC 0S61 FC OS9OFC 4250 5750 4950 8350 8950 10950 14350 17250 ACE Field Charger Chargemaster Dual Charger 12V Charger Voitmaster Tachmaster 4-20 Kit 4-40 Kit 4-60 Kit 3450 3950 3950 2750 2750 3150 3350 4150 5550 FUTABA FP-2NL5700 FP-2PKA-S289000 FP-4NL-S3810700 FP-4NL-S3312200 FP-5F6K AM16900 FP-5F6K FM18500 FP-7F6K AM19900 FP-7F6K FM21500 Also Carry Ooldberg Duhn, MAC Zinger K & B Rocket City Dave Brown much mere Orders COD VISA MC ge actual UPS chargesOPEN 10 6 EST904 478-6745 No handling charges es subject change notice 43W Nine Mile Rd Pensacola FL 32414 lubricate causing ring hydro plane Use liberal amounts oil hone measured 30 seconds time stopping time clean inspect cylinder walls Constantly work cylinder in-and-out figure-eight pattern achieve uniform honing pattern Since rings nearly new test validity theory did replace merely cleaned otT visible varnish buildup left pistons reassembled engines ran bit block put back work three have proven trouble-free dependable very powerful no guarantees business have great confidence value modification especially Supertigres having inconsistent runs such have described engine fails respond traditional cures plugs needle settings etc give try fact shoulda tried four-cycles before sold em Dam Ted Fancher 158 Flying Cloud Isle Foster City CA 94404 CL Scale/Boss Continued page 67 wood NY Pete Hermans Whippany NJ first-time entrants Scale competition Richs Sport Scale P-5 1 finished third seen October column Pete Hermans also finished third Profile P-39 shown month can hope maybe next year weather will cooperate turnout will much better Please send correspondenceand espe cially photosrelating CL Scale Bill Boss 77-06 269 Street New Hyde Park NY 11040 CL Combat/Johnson Continued page 68 high win-minus-loss system pos sible would give truly accurate picture top fliers winning percentages Probably re suIts would change very little regardless system used bunch things have delayed getting Top 20 Bladder Grabber winners print Both deadline-date submitting column need publish 86 Nats stories have caused delay Well youve seen Top 20 now Ill turn Bladder Grabber certainly Big Daddy Combat meets What 48 entrants over country flying tripleelimination contest $8000 prizes BG news Almost 160 matches flown between noon Saturday Sunday evening very few problems couple rematches John Salvin Event Director receives high marks fine job weather touch rainy moderate temperatures Oh want winners Michael Willcox defeated Open fliers came away enough Carver Corp stereo equipment make papa Pat Willcox have rewire house Michael has learned right moves really deserved win look Nats results youll see Michael flew Open contestants placed several events Fellow Texan Richard Stubblefield placed second behind kid Howard Rush third followed another Northwest flier John Thompson Mike Petri San Francisco area placed fifth People seem keep coming back year after year years entry list about double Nationals Fox Mfg sent half-dozen new Four-Cycle Special glow plugs testing Al though theyre designed use four-stroke engines claimed very good twostrokers too slipped two plugs goodrunning Slow Combat engines Nats unsuspecting owners never noticed good engines kept running before weekend Ill find some bad-running engines try plug Weve flameout-runs burbles outside ma neuvers good engine will run plug youve realigned pin poor engine usually wont make unless battery permanently attached plug other product very nice control handle Sagan Industries call Pro-Grip works well comfortable hand doesnt break toss asphalt Its also possible get double-banded grip fly Racing events poorlytrimmed Combat models pull lot Im really used feel Hot Rock handle took little getting used much better start other handle knife-edge grip Hot Rock handles have out production bunch years line spacing handle can reduced AA flying training new pilots Both plugs handle look like good things try should available through normal dealers look ad MACA Newsletter Fanfare please now event Everyman Stealth Combat Stealth Bombers big thing now although guess Stealth Combat model would give Event Director fits trying find crash concept local flying unofficial Combat grassroots level model can Slow Combat model everyone area has access may Cartier SC-2 Flite Streak Phantom number good-flying airplanes wing has fairly good-sized because going add some accessories Regardless model chosen everyone must use exact same design power plant dry weights mustbe same engine should mildly-tuned Stunt-type muffler thats what makes Stealth Most manufacturers make nice engine/muffler com bination similar 05 35 Use nylon props very mild fuel two-wheel gear can use stooge release model solo flying during matches friend Most people Ive told about concept have immediately thought ways hop-up combination Dont think about extracting performance Instead try make models dead Theoretically slightly better pilot would take full five minutes chase opponent finally get cut two Model engine performance wouldnt have anything winning matches pilot skill cunning patience would everything So far just concept have couple SC-2s 05 35 K&B try muffler will way well able fly type Combat plane metropolitan area think Ill further disguise some tassels like put kitesand maybe stationary kite two air camou flageContinued page 168 166Model Aviation Al SANYO Batteries AA 500 maea 245 1ASC 600 maea 365 800 maea 375 SC 1200 maea385 500 ma Pack 48B975 1200 ma Pack48V1975
Edition: Model Aviation - 1986/12
Page Numbers: 66, 164, 165, 166
Control Line Aerobatics Ted Fancher MANY THANKS Lou Dudka doing Nats report last months issue third time Lou has filled did usual fine job may aware reason asking Lou help out year distinctly pleasurable past Having write report own success takes lot egogratification out event having ego least large norm eagerly sought out Lous help fortunate enough win Unfortunately poor Lou earned few strokes himself Nats agreeing write column lost chance see name lights Last year Chicopee Lou flying great solid position qualify Walker flyoff Unfortunately second flight twoflight finals inadvertently did four both Inside Outside Loops lost him pattern points caused him miss narrowly final five also coincidentally allowed eventual winner qualify fifth position year no denying Lou flew beautifully week long obvious contention whole ball game right up end record Lou second-highest qualifier Walker Flyoff placed strong fifth final bell rang success prime example payoff dedication hard work Just few personal comments years Nats First great big Thank volunteers usual worked could compete especially Big Art Adamisin ever-active helpmate Betty last hurrah active administration toplevel Stunt competition Thanks lot Art year preceded Special thanks also go Bev Wisniewski both year previous ones has served Control Line Category Director Nats little five-footer has stood 10 feet tall behalf numerous occasions Nats has received precious little recognition work attendance PAMPA Awards Banquet allowed Continued page 164 66 Model Aviation TWO OT mrst iaaies OT Lontroi Line stana guara over ULrAs morn prestigious awaro Walker Cup Betty Adamisin 1 Bev Wlsniewskl strong distaff element present future CL activities national basis talk AMA listens Australias Brian Eather proved nes fine gentleman impressing judges flying Nats tually finished well-deserved seventh Plane original Firecracker ST 60 Alas kids comes easy Eight-yearold Patrick Schuett Aurora IL takes sky nonchalance old pro probably cant figure old-timers get feet tangled up Bill Zimmer photo other hand Tom Thornton Appleton WI demonstrates balletic grace inher- WlndyUrtnowskiisavisionofsartorialsplerl ent discovering inverted flight Note dor redperfectly matching Relentgrace part body ap- less Its further derivation Eljay pearsto flowin attunementwiththe rest Bill theme Jim Greenaway finished fourth Zimmer shot photo recent Mu- 86 Nats Ted thinks ones best waukee Stunt Clinic flying Eljay-type date IMerry ChristmasI FABTRONICSI Make specially good flier whether flies 2 cycle 4 cycle CDI system will give better idle positive spark right time much less residue plane car boat etc plus fact makes cost fuel much less factor run engine pennies stead dollars Nearly engine can converted unit comes pre drilled disk sensor clamp mounting sensor engine 90 day warranty complete instructions con version timing procedure Unit operates 48 volt low current drain weight isa mere 2 oz size 2 x 2 x 75 inches Complete system comes ignition coil spark plug on/off switch igni tion cable also available seperately Bat teries included Please state engine size use ordering Installation very easy no special tools needed Automatic spark advance now available 4 cycle engines Complete System $6995 Cash MO certified check plus $300 P & H Personal checks take time clear Illinois residents please add tax Brochure $100 ndable purchase FABTRONICS 3751111 Rival Hi GaluSImuru III IlUl situation viewpoint worst possible combination events likely happen service attempt test thatcarefully Now Criteria Success What expect wing structure allowed crack long doesnt separate two pieces might concealed damage allowed crush dihedral increases easy change see measure Have designed something structure will yield breaking thus reveal overload Lee Renaud put -in-dia steel dowel wing root Aquila worked beautifully show overloads failing Total failure easy recognize Success may subtle test setup can simple have typical balsa-sheeted foam-core Pattern wing might able set up two sawhorses put pillows avoid crushing structure locally pile loads center section until satisfied other hand have Old-Timer wing lots skinny spars ribs may want spread load around bit carefully Again look F-14 picture idea distribute lift loads test loads themselves always pre sent problem After have designed airplane meet specific set conditions can sure have designed meet critical conditions will actually encounter service Simple swer cant have designed built flown crashed lot airplanes begin understand what works what doesnt keep records next design will always easier will constantly starting over designs will generally overweight well remember Sun-Fli 4-20 large maple block wing panel landing gear block sup ported edges several soft 1/16 balsa ribs tiny plywood doublers end wing sheeting around block blocks tore out time didnt wheels swung back punched through lower surface wing operating turf Du Bro wheels plans building instructions didnt say anything about installation might have satisfac tory flying off pavement flying off turf thinner wheels difficult find out what structure has designed what will withstand unless test Crash loads expect shed few parts crash Ideally primary struc ture should protect radio system engine much possible Thats good RC designs have lot plywood around radio compartment see Bob Aberle design US Navy says cockpit must protect pilot crash exerts 40-G forward 20-G downloads Should want test criteria could push down forward up back both items want test largest load would need would about 447 x 6 lb lb extension mount chainsaw engine Mounts 40 60size engines should resist about 50 lb radio tray four servos switch harness receiver battery must resist about 35 lb Servo rails must resist about 5 lb per servo Handling transportation cludes causes hangar rash Very little attention paid loads until plan pack ship aircraft Well come back later George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 CL Aerobatics/Fancher Continued page 66 present extend token appreciation gratitude wish add printed thanks love Rev Id also like acknowledge help several people owe personal thanks Lou Dudka Glen Meador whipping up beautiful foam wing short notice two years ago found time complete spring Large James Greenaway man expertise greatly admire notwithstanding fact dont agree everything supplying modified hemi-head used good advantage ST 46 smoother economical stock squish-band head slight loss power especially good friends Gary McClellan Don McClave both qualified finals themselves gave unselfishiy expertise support became clear would competing top prize Thanks Last certainly least Thank kind enough call write congratulations thoughtfulness greatly appreciated thought might interesting relate TME DIFFERENT FOAM MODEL ILowest Cost Med sing Send $100 latest fine-grain sheet foam I developments foam samples FREE foam 3 sources Hard Shell finishes now LIable Dozens easy build foam air plane plans Peanuts RIC FOAM SCALE MODELS SS2MA St Croix Falls WI 84024 164Model Aviation IMPORTED DIESELS A-UAurorsD-CEDMVVSMUtsEnyS PAWTspIln Standard R/C.0864S Acre & Marine VlntageSpert eat Send *100 InformatIon CARLSON ENGINE IMPORTS 814 East Marconi Phoeiilx AZ 85022 WORLOS BIOGES SCALE PHOTO SERVICE 500 PHOTO RECKS PLANS EWS PHOTO-PACKSPLANS CNLARGING CASE E-ISglng CO Catalog S3O0 SCALE PLANS PHOTO SERVICE 3209 Mednon Gepsboo NC 27403 Phone 19152925239 No COIIOCI couple factors proved instrumental victory year First selected tactical approach achieving goal second learned valuable lesson about making engines work As reported two months ago experiment Enya four-stroke proved fruitless left brand new alrplane very good flier weighed 59 ozon ragged edge too heavy basically-stock ST 46s alrplane capable flying some precise maneuvers long wasnt pressed too hard After couple practice sessions Don Gary decided alrplane could consistently fly fairly high-scoring maneuvers 32- 35-point rangebut pushed fly really hard corners super-small maneuvers search another point two would inevit ably cause blow couple maneuvers badly Unfortunately has experience couple poor maneuvers pattern will adversely affect scores others well could really nail couple maneuvers overall score would suffer result obviously poor ones night before qualifying decided plan action would fly conservatively try give judges obvious reasons socking would fly no smaller no tighter no faster confident flying well 99% time Although flew few wowwww maneuvers during entire week also flew awwwwful maneu ver results speak themselves moral story take stock assets debits going competition devise game plan based evaluation Size up competition equipment physical condition weather Set real istic goal local champ goal quite honestly will likely embar rass yourself should probably fly con servatively avoid opening doors upand-coming hotshots fly through other hand up and-comers have very little lose letting hang out within honest limits your equipments ability Avoid trying change style accommodate some perceived pre ference part judges perception correct chance successfully changing style couple flights ranges slim Continue good job showing judge what doesnt like return fly another daywith luck itll front discerning judge Engines Over last 10 years have become pretty well-known inconsistent en gine runs ST 46s year ran like clocks week long Did find secret ask Well think found Give try major problem has always getting engine would run same speed entire tankflight after flight after flight Also needle valves incredibly sensitivethe tiniest adjustment making large changes always expected direction would get occasional good run among variety too slow too fast ones until after anywhere maybe 50 flights engine would simply break two-cycle couple laps after takeoff stay flew entire 1984 Walker Flyoff Reno dead two-cycle very reason Shortly before years Nats began have problem again started usual fix rearranging praying Upon disassembly however noticed dlscoloration several places side piston below ring color matched blue hue fuel using classic indlcation blowby condition seal between ring cylinder wall broken explosive charge escapes combustion chamber thereby re ducing cylinder pressure output torque engine temporarily reassembled piston cylinder sleeve noticed areas discoloration occurred piston corre sponded areas cylinder walls polished appearance two pieces evidence got old think tank cranked up conclusions fix knock wood has proved 100% successful point What feel happening could likened hydroplaning phenomenon occurs tire running surface covered water some point depending velocity tire pressure layer water builds up between tire road surface contact tween two lost resulting loss ability control direction tire inability stop vehicle tire mounted Hydroplaning significant problem instance attempting stop heavy air liner wet runway Obviously slick tire much suscepti ble hydroplaning tread ever hydroplaning can problem treaded tires too solution has employed full-scale aviation has cut grooves surface runways combination treaded tires grooved runway effectively eliminates hydroplaning allowing com pressed water place dissipate theory piston ring will effect hydroplane layer oil over highlypolished areas cylinder wall destroying seal consequently reducing cylinder pressure necessary consistent fourcycle operation two-cycle engine results erratic super-sensitive-to-the-needle speed-stunt Tigres fix consists purchasing inexpensive brake cylinder hone automotive parts store chucking up cheapie drill press running slowest possible speed hone cylinder walls until uniformly dull appearance approximate crosshatch pat tern tiny scratches made cylinder hone act like grooves runway allowing oil December 1986 165 ziJ f7 N 0 Co 0 x ih 0 x N Co CD 1 I m z 0 z z C, 0 -a 0 -a m I m 0 0 0 0 -1 CD C 0 0 CD 6 0 Co 0 0 01 0 WORLD Vacation Handy Disney World Kennedy Space Center rest Florida 3 Bedrooms sleeps 8 Kitchen A/C Pool Tennis lots B/C flying Nov-May $500 wk / Jane-Oct 0480 wk / nightly & nssnthly rates also available 617 528-4043 P AW DIESELS Englands Finest 049 35 RIC STD Sud $100 list Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 RADIO SOUTH K Os OS 25 FP 0525 FSR OS4OFP OS4OFSR OS2OFC OS4OFC 0S61 FC OS9OFC 4250 5750 4950 8350 8950 10950 14350 17250 ACE Field Charger Chargemaster Dual Charger 12V Charger Voitmaster Tachmaster 4-20 Kit 4-40 Kit 4-60 Kit 3450 3950 3950 2750 2750 3150 3350 4150 5550 FUTABA FP-2NL5700 FP-2PKA-S289000 FP-4NL-S3810700 FP-4NL-S3312200 FP-5F6K AM16900 FP-5F6K FM18500 FP-7F6K AM19900 FP-7F6K FM21500 Also Carry Ooldberg Duhn, MAC Zinger K & B Rocket City Dave Brown much mere Orders COD VISA MC ge actual UPS chargesOPEN 10 6 EST904 478-6745 No handling charges es subject change notice 43W Nine Mile Rd Pensacola FL 32414 lubricate causing ring hydro plane Use liberal amounts oil hone measured 30 seconds time stopping time clean inspect cylinder walls Constantly work cylinder in-and-out figure-eight pattern achieve uniform honing pattern Since rings nearly new test validity theory did replace merely cleaned otT visible varnish buildup left pistons reassembled engines ran bit block put back work three have proven trouble-free dependable very powerful no guarantees business have great confidence value modification especially Supertigres having inconsistent runs such have described engine fails respond traditional cures plugs needle settings etc give try fact shoulda tried four-cycles before sold em Dam Ted Fancher 158 Flying Cloud Isle Foster City CA 94404 CL Scale/Boss Continued page 67 wood NY Pete Hermans Whippany NJ first-time entrants Scale competition Richs Sport Scale P-5 1 finished third seen October column Pete Hermans also finished third Profile P-39 shown month can hope maybe next year weather will cooperate turnout will much better Please send correspondenceand espe cially photosrelating CL Scale Bill Boss 77-06 269 Street New Hyde Park NY 11040 CL Combat/Johnson Continued page 68 high win-minus-loss system pos sible would give truly accurate picture top fliers winning percentages Probably re suIts would change very little regardless system used bunch things have delayed getting Top 20 Bladder Grabber winners print Both deadline-date submitting column need publish 86 Nats stories have caused delay Well youve seen Top 20 now Ill turn Bladder Grabber certainly Big Daddy Combat meets What 48 entrants over country flying tripleelimination contest $8000 prizes BG news Almost 160 matches flown between noon Saturday Sunday evening very few problems couple rematches John Salvin Event Director receives high marks fine job weather touch rainy moderate temperatures Oh want winners Michael Willcox defeated Open fliers came away enough Carver Corp stereo equipment make papa Pat Willcox have rewire house Michael has learned right moves really deserved win look Nats results youll see Michael flew Open contestants placed several events Fellow Texan Richard Stubblefield placed second behind kid Howard Rush third followed another Northwest flier John Thompson Mike Petri San Francisco area placed fifth People seem keep coming back year after year years entry list about double Nationals Fox Mfg sent half-dozen new Four-Cycle Special glow plugs testing Al though theyre designed use four-stroke engines claimed very good twostrokers too slipped two plugs goodrunning Slow Combat engines Nats unsuspecting owners never noticed good engines kept running before weekend Ill find some bad-running engines try plug Weve flameout-runs burbles outside ma neuvers good engine will run plug youve realigned pin poor engine usually wont make unless battery permanently attached plug other product very nice control handle Sagan Industries call Pro-Grip works well comfortable hand doesnt break toss asphalt Its also possible get double-banded grip fly Racing events poorlytrimmed Combat models pull lot Im really used feel Hot Rock handle took little getting used much better start other handle knife-edge grip Hot Rock handles have out production bunch years line spacing handle can reduced AA flying training new pilots Both plugs handle look like good things try should available through normal dealers look ad MACA Newsletter Fanfare please now event Everyman Stealth Combat Stealth Bombers big thing now although guess Stealth Combat model would give Event Director fits trying find crash concept local flying unofficial Combat grassroots level model can Slow Combat model everyone area has access may Cartier SC-2 Flite Streak Phantom number good-flying airplanes wing has fairly good-sized because going add some accessories Regardless model chosen everyone must use exact same design power plant dry weights mustbe same engine should mildly-tuned Stunt-type muffler thats what makes Stealth Most manufacturers make nice engine/muffler com bination similar 05 35 Use nylon props very mild fuel two-wheel gear can use stooge release model solo flying during matches friend Most people Ive told about concept have immediately thought ways hop-up combination Dont think about extracting performance Instead try make models dead Theoretically slightly better pilot would take full five minutes chase opponent finally get cut two Model engine performance wouldnt have anything winning matches pilot skill cunning patience would everything So far just concept have couple SC-2s 05 35 K&B try muffler will way well able fly type Combat plane metropolitan area think Ill further disguise some tassels like put kitesand maybe stationary kite two air camou flageContinued page 168 166Model Aviation Al SANYO Batteries AA 500 maea 245 1ASC 600 maea 365 800 maea 375 SC 1200 maea385 500 ma Pack 48B975 1200 ma Pack48V1975