Control Lbe Racing John Ballard 10102 KimblewIck Dr Louisville KY 40223 FOXBERG Racing southern California will soon off big start Contest organizers Kenn Smith CD Bill Noyes Assistant CD promulgating 1990 Southern California Foxberg Championship Series annual series six Contests spaced approximately two months apart Kenn sent rules regulations booklet 12 pages long am reprinting General Rules section 2 pages concern con cept event specifications airplane specific rules Racing portion event about page contests unique three tasks flown contestRacing Stunt Balloon Bustand same plane must used three Certainly concept could utilized area country big plus using such thing would improve participation local modelers Mandating specific type airplane engine case totally unmodified Fox 35 Stunt makes some very exciting slow Racing Any other club may terested using very complete rules include scoresheets can ask booklet Kenn Smith 521 Jansen Ave San Dimas CA 91773 tel 1-714/592-2100 Now promised sections rule book General 1 All current AMA regulations apply contest series except amended below 2 purpose contest series pro mote fun simple friendly competition using established rules event basic aircraft equipment intent contest se ries promote family participation through spe cial activities contest days such picnics nov elty contests potlucks other events Note intent contest series become complaining corner ventilation outside frustrations sounding board anyone inclined complain about little rules infraction whether affects outcome event Unless obvious particular competitor has decided advantage over other competitors no infractions rules will initiated contest officials Rules infractions brought atten tion contest officials contest partici pants After discussion infraction accused competitor Contest Director will make determination will stand no ad ditional discussion Concept Southern California Foxberg Champion ship Series annual series six contests dates spaced approximately two months apart contests three events will available competition Racing Stunt Dive Bombing Racing rules derived Dallas Model Aircraft Association Goldberg Racing rules Stunt rules derived OldTime Stunt event rules generally use across United States Dive Bombing rules taken directly current AMA Competition Reg ulations book 2At completion contest awards will given first-place Junior event first second third-place Sen ior/Open combined winners event Ad ditional awards will presented specialty novelty theme event winners held 3At end series banquet will held series Grand Champion Junior Senior/Open combined trophies will awarded addition several other specialty awards will presented banquet airplane 1 The same airplane must used three events particular contest substitu tion will allowed event orig inal airplane wrecked 2 The airplane must Carl Goldberg Shoe string Cosmic Wind Buster profile Stunter direct copy Substitution kit wood permit ted part must duplicate origi nal 3Engine mounts plywood doublers may lengthened strength may creased decreased thickness 4Elevator horn doubler may enlarged and/or placed both sides strength 5 All remaining items must per kit cluding rudder offset % line sweep EnMarch 1990 79 N uniflow fuel tank Midwest Spoil Art Johnson uses rubberbands hold Racer has unique fill system alligator fuel tank Midwest Sport Racer pad clip fastened atop tank pinches foam behind tank coupled rubseals overflow line filling tank berband restraint helps minimize vibration through 1/8in tube front transmitted tanka major cause tank alligator clip opened allowing fuel foaming poor engine runs trapped air exit tank fuel runs out overflow clip reclosed reseal ing tank allowing refueling tube function uniflow vent once again Continued page 162 large Harrys Heavy Hub prop nut nose Larry Dziak Srs K&B 35-powered Midwest Sport Racer gives pit man bet ter chance catch plane damag ing prop lands pit stop Glenn Lees Midwest Sport Racer uses very light builtup wing Rules require %in fill tube fuel tubing used re fueling No quick-fill schemes allowedl Pete Maizer times slow competitor Treetown Modelaires meet using two stopwatches records number laps completed pit stop since seven such stops required 700-lap race Stock No Description __ _____ I _____ ______________ . HANDLING CHARGE k order creit Card order $490 COO Order Nnm trnt ElMasterCard ElVisa ElAmerExp Card No EJShip CODEMy Check oni~4 eJ Oty Amount Sub Total 7% Tax TN Only Handling TOTAL iaa order _____ HoBIWIUBY use order blank _____ call 615 373-1444 7in Exp DateI MA ml laminates require special drills saw blades work Some interesting useful prod ucts sold two suppliers include com mon carbon tow comes roll can used reinforce spars types joints Its like soft flat string either 6000 12000 strands Carbon fiber fabric unidirectional material carbon aligned direction Threads S-glass woven across grain hold place Its great stuff running engine mounts back spar foamwinged planes S-glass successor regular fiberglass about 45% stronger regular stuff Theres 35-oz cloth new ultralight weight 5-oz version lighter silk Most us have used another weight fiberglass few have used Kevlar Curt likens leather very tough very rig id Theres lightweight cloth 29 grams per yard 59-gram material heavyweight 176gram cloth laying up fuselages cowls etc Kevlar very difficult cut need some special scissors available through MRL $10 Thats lot less what quoted local store Wrapping joints good use 010-in Key lar thread Carbon very rigid much like eggshell brittle whereas Kevlar has good impact vibration resistance MRL suggests using thread wrap around spar assemblies keep shear web separating spar cap strip especially carbon fiber pulltru sion material used latter stuff 035 thick has very low epoxy content 28% As car bon fabric strands oriented way I-beam section used may overkill models such keeping spar locked solidly foam wing about impor tant strength spar MRL offers Mylar covering might per fect certain types models weighs 3/4 oz per 1000 sq about what takes current models remember theres both top bottom cover Curt claims mate rial pretty stable doesnt sag latest FasCal weve using keeps its trim about weekend until sun comes out leave model hot car Russians superior covering material stayed tight strong seams almost impossible discover Both MRL Bradley Model Products have great products information should send off SASE today fact sheets Theyve got lot experience field itll save lot time head aches long run hope youre still sitting down possibly sleeping now Ill give information Wisniewski AAC engine price go ing $110 per copy superior way setups available through Pete Athans well Mike Wisniewski dont already have number youd best drop line Ill send want guys out shop phone Ill out country entire month February have information com ments youd better write fast CL Racing/Ballard Continued page 79 gine offset optional 6 No additional wing sheeting will allowed Wing airfoil fuselage thickness must remain unchanged 7 Landing gear must two-wheel sideby-side type minimum five inches tween wheels Wheels must least two inches diameter Tail wheels allowed 8 The finish must colorful representa tiveof real race plane canopy either contrasting color outlined contrasting color Racing numbers shall placed side fuselage upper side left wing Decals furnished kit recoinContinued page 166 162 Model Aviation Name Street Address City mended mandatory 9 The engine must stock Fox 35 Stunt en gine #13500 absolutely no modification piston cylinder may deburred pre vent excessive wear Needle valve assembly shall stoek Fox 35 Stunt no modifications Skids protect needle valve permitted Needle valve stems may shortened prevent damage engines subject disassembly verify legality 10 The fuel tank shall stock manufactured -oz Stunt tank single fuel feed tube top bottom vent tube No uniflow no pres sure systems no quick-fill systems no fuel shut offs other special fuel supply systems al lowed II Fuel 10% nitromethane 25% cas tor oil will provided Racing event contestant will provide fuel choice other events 12 Any commercial glow plug permitted No hot gloves electric mechanical starting de vices allowed Just clip flip 13 Only unmodified 10 x 6 Master Airscrew propellers will allowed Deburring flash ing removal will permitted trade name size markings must easily read 14 Control lines shall 018 diameter 60 ft long 6 measured center line airplane center handle 15 Entire model control system must stand 25-lb pull test 16 Prior start contest pilots meeting will held relate contest conditions announce special site rules go over rules answer questions discuss other important issues per taining contest hand 17 Immediately after pilots meeting participating aircraft will put display spection competitors determine conform ance rules Any violation rules can deter mined during inspection time must brought attention contest officials prior start contest No protests con cerning aircraft legality described above will recognized after first flight contest has begun 18 All engines prize-winning aircraft subject teardown inspection New gas ket kits will furnished SCFCS disqualification teardowns will progress next-place winners Racing event 1 The circle layout shall 68 ft inner circle 76 ft outer circle 2 The pit crew may consist no two people time 3 Qualifying heats a Each heat race shall consist three fliers until two four fliers left four fliers remaining last two races last two races will consist two fliers b Each flier will fly two heat races back-toback fastest time two heats will used determine finishing position c Each heat race will consist 70 laps backto-back two minutes between heats Two mandatory pit stops required 70-lap race entrant completes 70 laps mak ing required number pit stops time shall continue until required number pit stops have completed fly addi tional lap d The six fastest qualifiers shall advance final heats 4 Final heats a Two final heat races three fliers will flown determine finishing position six finalists b Each final heat will consist 140 laps four pit stops 5 All flying shall done between six 20 ft Aircraft being overtaken shall drop lower elevation until overtaking aircraft past Failure comply above criteria shall draw two warnings disqualification OK thats represents 3 pages rule booklet Midwest 700-lap Sport Race end Octo ber brought annual Chicago Treetown Modelaires Meet annual event has become very popular competitors have come Califor nia Wisconsin Kentucky Minnesota Continued page 168 ANY WAY YOU USE THEM ADDS UP TO BETTER PERIORMANCE NYROD THE ORIGINAL &UW PUSH ROD COMPLETE WITH ALL REQUIRED METAL _____________________________ FITTINGS IDEALLY SUITED FOR ANY PUSH ROD ACTION RUDOERS ELEVATORS AILERONS THROTTLE CONTROL BQTS SEA PLANES. YOURjgS1 IMP3INATION S179 34 LONG ASSEMBLED LENGTHCat NYROD SU-PR-UNE PROCUCTS INC iaua SW Rauis 47 E HARDWARE INCLUDED 1 -4 NYRODapter 1 8 Rod 2-56 Threaded end QUADRA ENGINES & SUPERTANKS & SUPERMUH-LLRS ZINGER WOOD PROPS GIANT SCALE R/O PLANS UJDO QUADRA RT 1 NEODESHA KS 66757 316325-2821 DEALERS CALL SEND $1" FOR COMPLETE CATALOG 166 Model Aviation CL Racing/Ballard Continued page 162 0 PERFECT PRIME * ISA QUICK _ WHITE PRIMER Perfect Prime dries flat white providing excellent base coat will distort critical color matches Perfect Prime intensifies true color depth Primes surface wood fiber glass plastic metal paper fabric coverings Sands easily PO Box 2480 usky Ohio 44870 419797-2180 Poxakeet SILpCJL Po4i Paijiswk 40. FREE CATALOG Al Ti4etzofs i4sMg iducpiae 3525-C SE 458 Caurt Scala Florida 32171 904 694-3531 very large contingent local Chicago Racing en thusiasts year event held Ri vahl School parking lot outskirts Rockford IL contest traditionally held end October Midwest contests have long since become history aircraft requires profile body 300sq-in wing plain-bearing single-bypass standard production engine addition seven pit stops required 700 laps cases competitors timed two separate officials us ing two watches year predominant engine K&B 35 plain-bearing typically equipped venturi restrictor suction fuel feed consid erable amount time spent various com petitors honing cylinder liner mating piston-and-ring assembly liner Another trick use high-performance stock 35 bushed connecting rod instead un bushed comes engine majority propellers used aftermarket fiberglass units diameter/pitch around 8 x 7 thinned cut down slightly improve rpm fuel tank required have fill exit tube diameters no /8 no board chicken-hopper-type tanks permit ted Uniflow standard suction tanks types allowed event has become extremely popular novice well semiprofessional enthusi asts airspeeds usually just over 100 mph year decided run two-up Racing since unusually windy situation prevailing day contest Larry Dziak Sr fastest airplane al full second K&B 35s piston/ring/ liner fit produced excellent compression horsepower 5%-nitro fuel supplied contest organizers speed absolutely superior ran fuel tank problems ap proximately 630 laps required fiveminute pit stop remove complete needle valve assembly clean reinstall reset needle valve dropped Larry stand ings first fourth place times 36 37 minutes excellent 700 laps aircraft using suction fuel feed plain-bearing engine seven re quired pit stops John Ballard first 3638 John Stroiny second 3737 Larry Dziak Jr third 3745 Larry D Sr fourth 3827 700-lap race finalists placing close together really put pressure contestants Several competitors merely blew glow plug make extra pit stop factors reduced placings low end list Any small fumble put other 20odd competitors out money New prop manufacturer received letter Mike Hazel Salem OR concerning involvement producing quality fiberglass Racing propellers Mike sent example han diwork form 9 x 6 Slow Rat prop Mike will making props Scale Racing Rat Slow Rat certain am sure will also make other selections Slow Rat prop sent excellent quality cleaned up balanced minimum filing formation price list write Mike Hazel 1073 Windemere Dr NW Salem OR 97304 Cleaning varnish out Cox 049 cylin ders can hassle recently received informa tion concerning alternative method accom plishing needful task As Half-A enthusiasts aware spo radic performance losses drifty needle syn drome exhibited Cox /2A engines can gen erally improved devarnishing bore cylinder past articles Ive described use 0000 steel wool end wooden dowel accomplish procedure received newsletter published Soci ety Antique Modelers edited Bob Angel Santa Maria CA contained informa tion product known Naval Jelly could used accomplish devarnishing Bob indicated particular product nor mally used rust-remover gel can swabbed Cox cylinder using Q-tip removed brush soap water varnish other contaminants cyl inder bore said completely removed havent tried yet after next con test am going try cleaning several cylinders using method As always solicit contributions form ideas photographs questions com ments Timing & Scoring/Kelly Continued page 82 ever since operate same prin ciple isnt necessary know much about perform required modification used old kit servos contained tiny circuit board inte grated circuit few discrete compo nents Since feedback pot 5k con nected two 27k resistors original lo cation feedback pot mounted five-volt relay servo tape con nected coil motor lead ground black power wire normally open contacts relay connected few feet wire 25mm subminiature phone plug stopwatch Thats Continued page 171 Almost Ready Fly. Requires few hours assembly. Includes necessary cr~r~e. Balsa construction precovarad 20-25 SIze CHEROKEE 48 wing apan Special 8V4G46 Sia SHARP 40 SIze now avaIlable 55 Sf Foinn Core Sheeted Wing S&H127 *600 BLBWPO Box 3634 CrrItos CA 907033634 i wee maew Dealer 2131946-12702OSlze-$ 9995InqulrleeCOD MpeeyOrdeoe 40 Size 56AcceptedCleckeAeceptedteflow7eddltlaaleldeye 168 Model Aviation
Edition: Model Aviation - 1990/03
Page Numbers: 79, 162, 166, 168
Control Lbe Racing John Ballard 10102 KimblewIck Dr Louisville KY 40223 FOXBERG Racing southern California will soon off big start Contest organizers Kenn Smith CD Bill Noyes Assistant CD promulgating 1990 Southern California Foxberg Championship Series annual series six Contests spaced approximately two months apart Kenn sent rules regulations booklet 12 pages long am reprinting General Rules section 2 pages concern con cept event specifications airplane specific rules Racing portion event about page contests unique three tasks flown contestRacing Stunt Balloon Bustand same plane must used three Certainly concept could utilized area country big plus using such thing would improve participation local modelers Mandating specific type airplane engine case totally unmodified Fox 35 Stunt makes some very exciting slow Racing Any other club may terested using very complete rules include scoresheets can ask booklet Kenn Smith 521 Jansen Ave San Dimas CA 91773 tel 1-714/592-2100 Now promised sections rule book General 1 All current AMA regulations apply contest series except amended below 2 purpose contest series pro mote fun simple friendly competition using established rules event basic aircraft equipment intent contest se ries promote family participation through spe cial activities contest days such picnics nov elty contests potlucks other events Note intent contest series become complaining corner ventilation outside frustrations sounding board anyone inclined complain about little rules infraction whether affects outcome event Unless obvious particular competitor has decided advantage over other competitors no infractions rules will initiated contest officials Rules infractions brought atten tion contest officials contest partici pants After discussion infraction accused competitor Contest Director will make determination will stand no ad ditional discussion Concept Southern California Foxberg Champion ship Series annual series six contests dates spaced approximately two months apart contests three events will available competition Racing Stunt Dive Bombing Racing rules derived Dallas Model Aircraft Association Goldberg Racing rules Stunt rules derived OldTime Stunt event rules generally use across United States Dive Bombing rules taken directly current AMA Competition Reg ulations book 2At completion contest awards will given first-place Junior event first second third-place Sen ior/Open combined winners event Ad ditional awards will presented specialty novelty theme event winners held 3At end series banquet will held series Grand Champion Junior Senior/Open combined trophies will awarded addition several other specialty awards will presented banquet airplane 1 The same airplane must used three events particular contest substitu tion will allowed event orig inal airplane wrecked 2 The airplane must Carl Goldberg Shoe string Cosmic Wind Buster profile Stunter direct copy Substitution kit wood permit ted part must duplicate origi nal 3Engine mounts plywood doublers may lengthened strength may creased decreased thickness 4Elevator horn doubler may enlarged and/or placed both sides strength 5 All remaining items must per kit cluding rudder offset % line sweep EnMarch 1990 79 N uniflow fuel tank Midwest Spoil Art Johnson uses rubberbands hold Racer has unique fill system alligator fuel tank Midwest Sport Racer pad clip fastened atop tank pinches foam behind tank coupled rubseals overflow line filling tank berband restraint helps minimize vibration through 1/8in tube front transmitted tanka major cause tank alligator clip opened allowing fuel foaming poor engine runs trapped air exit tank fuel runs out overflow clip reclosed reseal ing tank allowing refueling tube function uniflow vent once again Continued page 162 large Harrys Heavy Hub prop nut nose Larry Dziak Srs K&B 35-powered Midwest Sport Racer gives pit man bet ter chance catch plane damag ing prop lands pit stop Glenn Lees Midwest Sport Racer uses very light builtup wing Rules require %in fill tube fuel tubing used re fueling No quick-fill schemes allowedl Pete Maizer times slow competitor Treetown Modelaires meet using two stopwatches records number laps completed pit stop since seven such stops required 700-lap race Stock No Description __ _____ I _____ ______________ . HANDLING CHARGE k order creit Card order $490 COO Order Nnm trnt ElMasterCard ElVisa ElAmerExp Card No EJShip CODEMy Check oni~4 eJ Oty Amount Sub Total 7% Tax TN Only Handling TOTAL iaa order _____ HoBIWIUBY use order blank _____ call 615 373-1444 7in Exp DateI MA ml laminates require special drills saw blades work Some interesting useful prod ucts sold two suppliers include com mon carbon tow comes roll can used reinforce spars types joints Its like soft flat string either 6000 12000 strands Carbon fiber fabric unidirectional material carbon aligned direction Threads S-glass woven across grain hold place Its great stuff running engine mounts back spar foamwinged planes S-glass successor regular fiberglass about 45% stronger regular stuff Theres 35-oz cloth new ultralight weight 5-oz version lighter silk Most us have used another weight fiberglass few have used Kevlar Curt likens leather very tough very rig id Theres lightweight cloth 29 grams per yard 59-gram material heavyweight 176gram cloth laying up fuselages cowls etc Kevlar very difficult cut need some special scissors available through MRL $10 Thats lot less what quoted local store Wrapping joints good use 010-in Key lar thread Carbon very rigid much like eggshell brittle whereas Kevlar has good impact vibration resistance MRL suggests using thread wrap around spar assemblies keep shear web separating spar cap strip especially carbon fiber pulltru sion material used latter stuff 035 thick has very low epoxy content 28% As car bon fabric strands oriented way I-beam section used may overkill models such keeping spar locked solidly foam wing about impor tant strength spar MRL offers Mylar covering might per fect certain types models weighs 3/4 oz per 1000 sq about what takes current models remember theres both top bottom cover Curt claims mate rial pretty stable doesnt sag latest FasCal weve using keeps its trim about weekend until sun comes out leave model hot car Russians superior covering material stayed tight strong seams almost impossible discover Both MRL Bradley Model Products have great products information should send off SASE today fact sheets Theyve got lot experience field itll save lot time head aches long run hope youre still sitting down possibly sleeping now Ill give information Wisniewski AAC engine price go ing $110 per copy superior way setups available through Pete Athans well Mike Wisniewski dont already have number youd best drop line Ill send want guys out shop phone Ill out country entire month February have information com ments youd better write fast CL Racing/Ballard Continued page 79 gine offset optional 6 No additional wing sheeting will allowed Wing airfoil fuselage thickness must remain unchanged 7 Landing gear must two-wheel sideby-side type minimum five inches tween wheels Wheels must least two inches diameter Tail wheels allowed 8 The finish must colorful representa tiveof real race plane canopy either contrasting color outlined contrasting color Racing numbers shall placed side fuselage upper side left wing Decals furnished kit recoinContinued page 166 162 Model Aviation Name Street Address City mended mandatory 9 The engine must stock Fox 35 Stunt en gine #13500 absolutely no modification piston cylinder may deburred pre vent excessive wear Needle valve assembly shall stoek Fox 35 Stunt no modifications Skids protect needle valve permitted Needle valve stems may shortened prevent damage engines subject disassembly verify legality 10 The fuel tank shall stock manufactured -oz Stunt tank single fuel feed tube top bottom vent tube No uniflow no pres sure systems no quick-fill systems no fuel shut offs other special fuel supply systems al lowed II Fuel 10% nitromethane 25% cas tor oil will provided Racing event contestant will provide fuel choice other events 12 Any commercial glow plug permitted No hot gloves electric mechanical starting de vices allowed Just clip flip 13 Only unmodified 10 x 6 Master Airscrew propellers will allowed Deburring flash ing removal will permitted trade name size markings must easily read 14 Control lines shall 018 diameter 60 ft long 6 measured center line airplane center handle 15 Entire model control system must stand 25-lb pull test 16 Prior start contest pilots meeting will held relate contest conditions announce special site rules go over rules answer questions discuss other important issues per taining contest hand 17 Immediately after pilots meeting participating aircraft will put display spection competitors determine conform ance rules Any violation rules can deter mined during inspection time must brought attention contest officials prior start contest No protests con cerning aircraft legality described above will recognized after first flight contest has begun 18 All engines prize-winning aircraft subject teardown inspection New gas ket kits will furnished SCFCS disqualification teardowns will progress next-place winners Racing event 1 The circle layout shall 68 ft inner circle 76 ft outer circle 2 The pit crew may consist no two people time 3 Qualifying heats a Each heat race shall consist three fliers until two four fliers left four fliers remaining last two races last two races will consist two fliers b Each flier will fly two heat races back-toback fastest time two heats will used determine finishing position c Each heat race will consist 70 laps backto-back two minutes between heats Two mandatory pit stops required 70-lap race entrant completes 70 laps mak ing required number pit stops time shall continue until required number pit stops have completed fly addi tional lap d The six fastest qualifiers shall advance final heats 4 Final heats a Two final heat races three fliers will flown determine finishing position six finalists b Each final heat will consist 140 laps four pit stops 5 All flying shall done between six 20 ft Aircraft being overtaken shall drop lower elevation until overtaking aircraft past Failure comply above criteria shall draw two warnings disqualification OK thats represents 3 pages rule booklet Midwest 700-lap Sport Race end Octo ber brought annual Chicago Treetown Modelaires Meet annual event has become very popular competitors have come Califor nia Wisconsin Kentucky Minnesota Continued page 168 ANY WAY YOU USE THEM ADDS UP TO BETTER PERIORMANCE NYROD THE ORIGINAL &UW PUSH ROD COMPLETE WITH ALL REQUIRED METAL _____________________________ FITTINGS IDEALLY SUITED FOR ANY PUSH ROD ACTION RUDOERS ELEVATORS AILERONS THROTTLE CONTROL BQTS SEA PLANES. YOURjgS1 IMP3INATION S179 34 LONG ASSEMBLED LENGTHCat NYROD SU-PR-UNE PROCUCTS INC iaua SW Rauis 47 E HARDWARE INCLUDED 1 -4 NYRODapter 1 8 Rod 2-56 Threaded end QUADRA ENGINES & SUPERTANKS & SUPERMUH-LLRS ZINGER WOOD PROPS GIANT SCALE R/O PLANS UJDO QUADRA RT 1 NEODESHA KS 66757 316325-2821 DEALERS CALL SEND $1" FOR COMPLETE CATALOG 166 Model Aviation CL Racing/Ballard Continued page 162 0 PERFECT PRIME * ISA QUICK _ WHITE PRIMER Perfect Prime dries flat white providing excellent base coat will distort critical color matches Perfect Prime intensifies true color depth Primes surface wood fiber glass plastic metal paper fabric coverings Sands easily PO Box 2480 usky Ohio 44870 419797-2180 Poxakeet SILpCJL Po4i Paijiswk 40. FREE CATALOG Al Ti4etzofs i4sMg iducpiae 3525-C SE 458 Caurt Scala Florida 32171 904 694-3531 very large contingent local Chicago Racing en thusiasts year event held Ri vahl School parking lot outskirts Rockford IL contest traditionally held end October Midwest contests have long since become history aircraft requires profile body 300sq-in wing plain-bearing single-bypass standard production engine addition seven pit stops required 700 laps cases competitors timed two separate officials us ing two watches year predominant engine K&B 35 plain-bearing typically equipped venturi restrictor suction fuel feed consid erable amount time spent various com petitors honing cylinder liner mating piston-and-ring assembly liner Another trick use high-performance stock 35 bushed connecting rod instead un bushed comes engine majority propellers used aftermarket fiberglass units diameter/pitch around 8 x 7 thinned cut down slightly improve rpm fuel tank required have fill exit tube diameters no /8 no board chicken-hopper-type tanks permit ted Uniflow standard suction tanks types allowed event has become extremely popular novice well semiprofessional enthusi asts airspeeds usually just over 100 mph year decided run two-up Racing since unusually windy situation prevailing day contest Larry Dziak Sr fastest airplane al full second K&B 35s piston/ring/ liner fit produced excellent compression horsepower 5%-nitro fuel supplied contest organizers speed absolutely superior ran fuel tank problems ap proximately 630 laps required fiveminute pit stop remove complete needle valve assembly clean reinstall reset needle valve dropped Larry stand ings first fourth place times 36 37 minutes excellent 700 laps aircraft using suction fuel feed plain-bearing engine seven re quired pit stops John Ballard first 3638 John Stroiny second 3737 Larry Dziak Jr third 3745 Larry D Sr fourth 3827 700-lap race finalists placing close together really put pressure contestants Several competitors merely blew glow plug make extra pit stop factors reduced placings low end list Any small fumble put other 20odd competitors out money New prop manufacturer received letter Mike Hazel Salem OR concerning involvement producing quality fiberglass Racing propellers Mike sent example han diwork form 9 x 6 Slow Rat prop Mike will making props Scale Racing Rat Slow Rat certain am sure will also make other selections Slow Rat prop sent excellent quality cleaned up balanced minimum filing formation price list write Mike Hazel 1073 Windemere Dr NW Salem OR 97304 Cleaning varnish out Cox 049 cylin ders can hassle recently received informa tion concerning alternative method accom plishing needful task As Half-A enthusiasts aware spo radic performance losses drifty needle syn drome exhibited Cox /2A engines can gen erally improved devarnishing bore cylinder past articles Ive described use 0000 steel wool end wooden dowel accomplish procedure received newsletter published Soci ety Antique Modelers edited Bob Angel Santa Maria CA contained informa tion product known Naval Jelly could used accomplish devarnishing Bob indicated particular product nor mally used rust-remover gel can swabbed Cox cylinder using Q-tip removed brush soap water varnish other contaminants cyl inder bore said completely removed havent tried yet after next con test am going try cleaning several cylinders using method As always solicit contributions form ideas photographs questions com ments Timing & Scoring/Kelly Continued page 82 ever since operate same prin ciple isnt necessary know much about perform required modification used old kit servos contained tiny circuit board inte grated circuit few discrete compo nents Since feedback pot 5k con nected two 27k resistors original lo cation feedback pot mounted five-volt relay servo tape con nected coil motor lead ground black power wire normally open contacts relay connected few feet wire 25mm subminiature phone plug stopwatch Thats Continued page 171 Almost Ready Fly. Requires few hours assembly. Includes necessary cr~r~e. Balsa construction precovarad 20-25 SIze CHEROKEE 48 wing apan Special 8V4G46 Sia SHARP 40 SIze now avaIlable 55 Sf Foinn Core Sheeted Wing S&H127 *600 BLBWPO Box 3634 CrrItos CA 907033634 i wee maew Dealer 2131946-12702OSlze-$ 9995InqulrleeCOD MpeeyOrdeoe 40 Size 56AcceptedCleckeAeceptedteflow7eddltlaaleldeye 168 Model Aviation
Edition: Model Aviation - 1990/03
Page Numbers: 79, 162, 166, 168
Control Lbe Racing John Ballard 10102 KimblewIck Dr Louisville KY 40223 FOXBERG Racing southern California will soon off big start Contest organizers Kenn Smith CD Bill Noyes Assistant CD promulgating 1990 Southern California Foxberg Championship Series annual series six Contests spaced approximately two months apart Kenn sent rules regulations booklet 12 pages long am reprinting General Rules section 2 pages concern con cept event specifications airplane specific rules Racing portion event about page contests unique three tasks flown contestRacing Stunt Balloon Bustand same plane must used three Certainly concept could utilized area country big plus using such thing would improve participation local modelers Mandating specific type airplane engine case totally unmodified Fox 35 Stunt makes some very exciting slow Racing Any other club may terested using very complete rules include scoresheets can ask booklet Kenn Smith 521 Jansen Ave San Dimas CA 91773 tel 1-714/592-2100 Now promised sections rule book General 1 All current AMA regulations apply contest series except amended below 2 purpose contest series pro mote fun simple friendly competition using established rules event basic aircraft equipment intent contest se ries promote family participation through spe cial activities contest days such picnics nov elty contests potlucks other events Note intent contest series become complaining corner ventilation outside frustrations sounding board anyone inclined complain about little rules infraction whether affects outcome event Unless obvious particular competitor has decided advantage over other competitors no infractions rules will initiated contest officials Rules infractions brought atten tion contest officials contest partici pants After discussion infraction accused competitor Contest Director will make determination will stand no ad ditional discussion Concept Southern California Foxberg Champion ship Series annual series six contests dates spaced approximately two months apart contests three events will available competition Racing Stunt Dive Bombing Racing rules derived Dallas Model Aircraft Association Goldberg Racing rules Stunt rules derived OldTime Stunt event rules generally use across United States Dive Bombing rules taken directly current AMA Competition Reg ulations book 2At completion contest awards will given first-place Junior event first second third-place Sen ior/Open combined winners event Ad ditional awards will presented specialty novelty theme event winners held 3At end series banquet will held series Grand Champion Junior Senior/Open combined trophies will awarded addition several other specialty awards will presented banquet airplane 1 The same airplane must used three events particular contest substitu tion will allowed event orig inal airplane wrecked 2 The airplane must Carl Goldberg Shoe string Cosmic Wind Buster profile Stunter direct copy Substitution kit wood permit ted part must duplicate origi nal 3Engine mounts plywood doublers may lengthened strength may creased decreased thickness 4Elevator horn doubler may enlarged and/or placed both sides strength 5 All remaining items must per kit cluding rudder offset % line sweep EnMarch 1990 79 N uniflow fuel tank Midwest Spoil Art Johnson uses rubberbands hold Racer has unique fill system alligator fuel tank Midwest Sport Racer pad clip fastened atop tank pinches foam behind tank coupled rubseals overflow line filling tank berband restraint helps minimize vibration through 1/8in tube front transmitted tanka major cause tank alligator clip opened allowing fuel foaming poor engine runs trapped air exit tank fuel runs out overflow clip reclosed reseal ing tank allowing refueling tube function uniflow vent once again Continued page 162 large Harrys Heavy Hub prop nut nose Larry Dziak Srs K&B 35-powered Midwest Sport Racer gives pit man bet ter chance catch plane damag ing prop lands pit stop Glenn Lees Midwest Sport Racer uses very light builtup wing Rules require %in fill tube fuel tubing used re fueling No quick-fill schemes allowedl Pete Maizer times slow competitor Treetown Modelaires meet using two stopwatches records number laps completed pit stop since seven such stops required 700-lap race Stock No Description __ _____ I _____ ______________ . HANDLING CHARGE k order creit Card order $490 COO Order Nnm trnt ElMasterCard ElVisa ElAmerExp Card No EJShip CODEMy Check oni~4 eJ Oty Amount Sub Total 7% Tax TN Only Handling TOTAL iaa order _____ HoBIWIUBY use order blank _____ call 615 373-1444 7in Exp DateI MA ml laminates require special drills saw blades work Some interesting useful prod ucts sold two suppliers include com mon carbon tow comes roll can used reinforce spars types joints Its like soft flat string either 6000 12000 strands Carbon fiber fabric unidirectional material carbon aligned direction Threads S-glass woven across grain hold place Its great stuff running engine mounts back spar foamwinged planes S-glass successor regular fiberglass about 45% stronger regular stuff Theres 35-oz cloth new ultralight weight 5-oz version lighter silk Most us have used another weight fiberglass few have used Kevlar Curt likens leather very tough very rig id Theres lightweight cloth 29 grams per yard 59-gram material heavyweight 176gram cloth laying up fuselages cowls etc Kevlar very difficult cut need some special scissors available through MRL $10 Thats lot less what quoted local store Wrapping joints good use 010-in Key lar thread Carbon very rigid much like eggshell brittle whereas Kevlar has good impact vibration resistance MRL suggests using thread wrap around spar assemblies keep shear web separating spar cap strip especially carbon fiber pulltru sion material used latter stuff 035 thick has very low epoxy content 28% As car bon fabric strands oriented way I-beam section used may overkill models such keeping spar locked solidly foam wing about impor tant strength spar MRL offers Mylar covering might per fect certain types models weighs 3/4 oz per 1000 sq about what takes current models remember theres both top bottom cover Curt claims mate rial pretty stable doesnt sag latest FasCal weve using keeps its trim about weekend until sun comes out leave model hot car Russians superior covering material stayed tight strong seams almost impossible discover Both MRL Bradley Model Products have great products information should send off SASE today fact sheets Theyve got lot experience field itll save lot time head aches long run hope youre still sitting down possibly sleeping now Ill give information Wisniewski AAC engine price go ing $110 per copy superior way setups available through Pete Athans well Mike Wisniewski dont already have number youd best drop line Ill send want guys out shop phone Ill out country entire month February have information com ments youd better write fast CL Racing/Ballard Continued page 79 gine offset optional 6 No additional wing sheeting will allowed Wing airfoil fuselage thickness must remain unchanged 7 Landing gear must two-wheel sideby-side type minimum five inches tween wheels Wheels must least two inches diameter Tail wheels allowed 8 The finish must colorful representa tiveof real race plane canopy either contrasting color outlined contrasting color Racing numbers shall placed side fuselage upper side left wing Decals furnished kit recoinContinued page 166 162 Model Aviation Name Street Address City mended mandatory 9 The engine must stock Fox 35 Stunt en gine #13500 absolutely no modification piston cylinder may deburred pre vent excessive wear Needle valve assembly shall stoek Fox 35 Stunt no modifications Skids protect needle valve permitted Needle valve stems may shortened prevent damage engines subject disassembly verify legality 10 The fuel tank shall stock manufactured -oz Stunt tank single fuel feed tube top bottom vent tube No uniflow no pres sure systems no quick-fill systems no fuel shut offs other special fuel supply systems al lowed II Fuel 10% nitromethane 25% cas tor oil will provided Racing event contestant will provide fuel choice other events 12 Any commercial glow plug permitted No hot gloves electric mechanical starting de vices allowed Just clip flip 13 Only unmodified 10 x 6 Master Airscrew propellers will allowed Deburring flash ing removal will permitted trade name size markings must easily read 14 Control lines shall 018 diameter 60 ft long 6 measured center line airplane center handle 15 Entire model control system must stand 25-lb pull test 16 Prior start contest pilots meeting will held relate contest conditions announce special site rules go over rules answer questions discuss other important issues per taining contest hand 17 Immediately after pilots meeting participating aircraft will put display spection competitors determine conform ance rules Any violation rules can deter mined during inspection time must brought attention contest officials prior start contest No protests con cerning aircraft legality described above will recognized after first flight contest has begun 18 All engines prize-winning aircraft subject teardown inspection New gas ket kits will furnished SCFCS disqualification teardowns will progress next-place winners Racing event 1 The circle layout shall 68 ft inner circle 76 ft outer circle 2 The pit crew may consist no two people time 3 Qualifying heats a Each heat race shall consist three fliers until two four fliers left four fliers remaining last two races last two races will consist two fliers b Each flier will fly two heat races back-toback fastest time two heats will used determine finishing position c Each heat race will consist 70 laps backto-back two minutes between heats Two mandatory pit stops required 70-lap race entrant completes 70 laps mak ing required number pit stops time shall continue until required number pit stops have completed fly addi tional lap d The six fastest qualifiers shall advance final heats 4 Final heats a Two final heat races three fliers will flown determine finishing position six finalists b Each final heat will consist 140 laps four pit stops 5 All flying shall done between six 20 ft Aircraft being overtaken shall drop lower elevation until overtaking aircraft past Failure comply above criteria shall draw two warnings disqualification OK thats represents 3 pages rule booklet Midwest 700-lap Sport Race end Octo ber brought annual Chicago Treetown Modelaires Meet annual event has become very popular competitors have come Califor nia Wisconsin Kentucky Minnesota Continued page 168 ANY WAY YOU USE THEM ADDS UP TO BETTER PERIORMANCE NYROD THE ORIGINAL &UW PUSH ROD COMPLETE WITH ALL REQUIRED METAL _____________________________ FITTINGS IDEALLY SUITED FOR ANY PUSH ROD ACTION RUDOERS ELEVATORS AILERONS THROTTLE CONTROL BQTS SEA PLANES. YOURjgS1 IMP3INATION S179 34 LONG ASSEMBLED LENGTHCat NYROD SU-PR-UNE PROCUCTS INC iaua SW Rauis 47 E HARDWARE INCLUDED 1 -4 NYRODapter 1 8 Rod 2-56 Threaded end QUADRA ENGINES & SUPERTANKS & SUPERMUH-LLRS ZINGER WOOD PROPS GIANT SCALE R/O PLANS UJDO QUADRA RT 1 NEODESHA KS 66757 316325-2821 DEALERS CALL SEND $1" FOR COMPLETE CATALOG 166 Model Aviation CL Racing/Ballard Continued page 162 0 PERFECT PRIME * ISA QUICK _ WHITE PRIMER Perfect Prime dries flat white providing excellent base coat will distort critical color matches Perfect Prime intensifies true color depth Primes surface wood fiber glass plastic metal paper fabric coverings Sands easily PO Box 2480 usky Ohio 44870 419797-2180 Poxakeet SILpCJL Po4i Paijiswk 40. FREE CATALOG Al Ti4etzofs i4sMg iducpiae 3525-C SE 458 Caurt Scala Florida 32171 904 694-3531 very large contingent local Chicago Racing en thusiasts year event held Ri vahl School parking lot outskirts Rockford IL contest traditionally held end October Midwest contests have long since become history aircraft requires profile body 300sq-in wing plain-bearing single-bypass standard production engine addition seven pit stops required 700 laps cases competitors timed two separate officials us ing two watches year predominant engine K&B 35 plain-bearing typically equipped venturi restrictor suction fuel feed consid erable amount time spent various com petitors honing cylinder liner mating piston-and-ring assembly liner Another trick use high-performance stock 35 bushed connecting rod instead un bushed comes engine majority propellers used aftermarket fiberglass units diameter/pitch around 8 x 7 thinned cut down slightly improve rpm fuel tank required have fill exit tube diameters no /8 no board chicken-hopper-type tanks permit ted Uniflow standard suction tanks types allowed event has become extremely popular novice well semiprofessional enthusi asts airspeeds usually just over 100 mph year decided run two-up Racing since unusually windy situation prevailing day contest Larry Dziak Sr fastest airplane al full second K&B 35s piston/ring/ liner fit produced excellent compression horsepower 5%-nitro fuel supplied contest organizers speed absolutely superior ran fuel tank problems ap proximately 630 laps required fiveminute pit stop remove complete needle valve assembly clean reinstall reset needle valve dropped Larry stand ings first fourth place times 36 37 minutes excellent 700 laps aircraft using suction fuel feed plain-bearing engine seven re quired pit stops John Ballard first 3638 John Stroiny second 3737 Larry Dziak Jr third 3745 Larry D Sr fourth 3827 700-lap race finalists placing close together really put pressure contestants Several competitors merely blew glow plug make extra pit stop factors reduced placings low end list Any small fumble put other 20odd competitors out money New prop manufacturer received letter Mike Hazel Salem OR concerning involvement producing quality fiberglass Racing propellers Mike sent example han diwork form 9 x 6 Slow Rat prop Mike will making props Scale Racing Rat Slow Rat certain am sure will also make other selections Slow Rat prop sent excellent quality cleaned up balanced minimum filing formation price list write Mike Hazel 1073 Windemere Dr NW Salem OR 97304 Cleaning varnish out Cox 049 cylin ders can hassle recently received informa tion concerning alternative method accom plishing needful task As Half-A enthusiasts aware spo radic performance losses drifty needle syn drome exhibited Cox /2A engines can gen erally improved devarnishing bore cylinder past articles Ive described use 0000 steel wool end wooden dowel accomplish procedure received newsletter published Soci ety Antique Modelers edited Bob Angel Santa Maria CA contained informa tion product known Naval Jelly could used accomplish devarnishing Bob indicated particular product nor mally used rust-remover gel can swabbed Cox cylinder using Q-tip removed brush soap water varnish other contaminants cyl inder bore said completely removed havent tried yet after next con test am going try cleaning several cylinders using method As always solicit contributions form ideas photographs questions com ments Timing & Scoring/Kelly Continued page 82 ever since operate same prin ciple isnt necessary know much about perform required modification used old kit servos contained tiny circuit board inte grated circuit few discrete compo nents Since feedback pot 5k con nected two 27k resistors original lo cation feedback pot mounted five-volt relay servo tape con nected coil motor lead ground black power wire normally open contacts relay connected few feet wire 25mm subminiature phone plug stopwatch Thats Continued page 171 Almost Ready Fly. Requires few hours assembly. Includes necessary cr~r~e. Balsa construction precovarad 20-25 SIze CHEROKEE 48 wing apan Special 8V4G46 Sia SHARP 40 SIze now avaIlable 55 Sf Foinn Core Sheeted Wing S&H127 *600 BLBWPO Box 3634 CrrItos CA 907033634 i wee maew Dealer 2131946-12702OSlze-$ 9995InqulrleeCOD MpeeyOrdeoe 40 Size 56AcceptedCleckeAeceptedteflow7eddltlaaleldeye 168 Model Aviation
Edition: Model Aviation - 1990/03
Page Numbers: 79, 162, 166, 168
Control Lbe Racing John Ballard 10102 KimblewIck Dr Louisville KY 40223 FOXBERG Racing southern California will soon off big start Contest organizers Kenn Smith CD Bill Noyes Assistant CD promulgating 1990 Southern California Foxberg Championship Series annual series six Contests spaced approximately two months apart Kenn sent rules regulations booklet 12 pages long am reprinting General Rules section 2 pages concern con cept event specifications airplane specific rules Racing portion event about page contests unique three tasks flown contestRacing Stunt Balloon Bustand same plane must used three Certainly concept could utilized area country big plus using such thing would improve participation local modelers Mandating specific type airplane engine case totally unmodified Fox 35 Stunt makes some very exciting slow Racing Any other club may terested using very complete rules include scoresheets can ask booklet Kenn Smith 521 Jansen Ave San Dimas CA 91773 tel 1-714/592-2100 Now promised sections rule book General 1 All current AMA regulations apply contest series except amended below 2 purpose contest series pro mote fun simple friendly competition using established rules event basic aircraft equipment intent contest se ries promote family participation through spe cial activities contest days such picnics nov elty contests potlucks other events Note intent contest series become complaining corner ventilation outside frustrations sounding board anyone inclined complain about little rules infraction whether affects outcome event Unless obvious particular competitor has decided advantage over other competitors no infractions rules will initiated contest officials Rules infractions brought atten tion contest officials contest partici pants After discussion infraction accused competitor Contest Director will make determination will stand no ad ditional discussion Concept Southern California Foxberg Champion ship Series annual series six contests dates spaced approximately two months apart contests three events will available competition Racing Stunt Dive Bombing Racing rules derived Dallas Model Aircraft Association Goldberg Racing rules Stunt rules derived OldTime Stunt event rules generally use across United States Dive Bombing rules taken directly current AMA Competition Reg ulations book 2At completion contest awards will given first-place Junior event first second third-place Sen ior/Open combined winners event Ad ditional awards will presented specialty novelty theme event winners held 3At end series banquet will held series Grand Champion Junior Senior/Open combined trophies will awarded addition several other specialty awards will presented banquet airplane 1 The same airplane must used three events particular contest substitu tion will allowed event orig inal airplane wrecked 2 The airplane must Carl Goldberg Shoe string Cosmic Wind Buster profile Stunter direct copy Substitution kit wood permit ted part must duplicate origi nal 3Engine mounts plywood doublers may lengthened strength may creased decreased thickness 4Elevator horn doubler may enlarged and/or placed both sides strength 5 All remaining items must per kit cluding rudder offset % line sweep EnMarch 1990 79 N uniflow fuel tank Midwest Spoil Art Johnson uses rubberbands hold Racer has unique fill system alligator fuel tank Midwest Sport Racer pad clip fastened atop tank pinches foam behind tank coupled rubseals overflow line filling tank berband restraint helps minimize vibration through 1/8in tube front transmitted tanka major cause tank alligator clip opened allowing fuel foaming poor engine runs trapped air exit tank fuel runs out overflow clip reclosed reseal ing tank allowing refueling tube function uniflow vent once again Continued page 162 large Harrys Heavy Hub prop nut nose Larry Dziak Srs K&B 35-powered Midwest Sport Racer gives pit man bet ter chance catch plane damag ing prop lands pit stop Glenn Lees Midwest Sport Racer uses very light builtup wing Rules require %in fill tube fuel tubing used re fueling No quick-fill schemes allowedl Pete Maizer times slow competitor Treetown Modelaires meet using two stopwatches records number laps completed pit stop since seven such stops required 700-lap race Stock No Description __ _____ I _____ ______________ . HANDLING CHARGE k order creit Card order $490 COO Order Nnm trnt ElMasterCard ElVisa ElAmerExp Card No EJShip CODEMy Check oni~4 eJ Oty Amount Sub Total 7% Tax TN Only Handling TOTAL iaa order _____ HoBIWIUBY use order blank _____ call 615 373-1444 7in Exp DateI MA ml laminates require special drills saw blades work Some interesting useful prod ucts sold two suppliers include com mon carbon tow comes roll can used reinforce spars types joints Its like soft flat string either 6000 12000 strands Carbon fiber fabric unidirectional material carbon aligned direction Threads S-glass woven across grain hold place Its great stuff running engine mounts back spar foamwinged planes S-glass successor regular fiberglass about 45% stronger regular stuff Theres 35-oz cloth new ultralight weight 5-oz version lighter silk Most us have used another weight fiberglass few have used Kevlar Curt likens leather very tough very rig id Theres lightweight cloth 29 grams per yard 59-gram material heavyweight 176gram cloth laying up fuselages cowls etc Kevlar very difficult cut need some special scissors available through MRL $10 Thats lot less what quoted local store Wrapping joints good use 010-in Key lar thread Carbon very rigid much like eggshell brittle whereas Kevlar has good impact vibration resistance MRL suggests using thread wrap around spar assemblies keep shear web separating spar cap strip especially carbon fiber pulltru sion material used latter stuff 035 thick has very low epoxy content 28% As car bon fabric strands oriented way I-beam section used may overkill models such keeping spar locked solidly foam wing about impor tant strength spar MRL offers Mylar covering might per fect certain types models weighs 3/4 oz per 1000 sq about what takes current models remember theres both top bottom cover Curt claims mate rial pretty stable doesnt sag latest FasCal weve using keeps its trim about weekend until sun comes out leave model hot car Russians superior covering material stayed tight strong seams almost impossible discover Both MRL Bradley Model Products have great products information should send off SASE today fact sheets Theyve got lot experience field itll save lot time head aches long run hope youre still sitting down possibly sleeping now Ill give information Wisniewski AAC engine price go ing $110 per copy superior way setups available through Pete Athans well Mike Wisniewski dont already have number youd best drop line Ill send want guys out shop phone Ill out country entire month February have information com ments youd better write fast CL Racing/Ballard Continued page 79 gine offset optional 6 No additional wing sheeting will allowed Wing airfoil fuselage thickness must remain unchanged 7 Landing gear must two-wheel sideby-side type minimum five inches tween wheels Wheels must least two inches diameter Tail wheels allowed 8 The finish must colorful representa tiveof real race plane canopy either contrasting color outlined contrasting color Racing numbers shall placed side fuselage upper side left wing Decals furnished kit recoinContinued page 166 162 Model Aviation Name Street Address City mended mandatory 9 The engine must stock Fox 35 Stunt en gine #13500 absolutely no modification piston cylinder may deburred pre vent excessive wear Needle valve assembly shall stoek Fox 35 Stunt no modifications Skids protect needle valve permitted Needle valve stems may shortened prevent damage engines subject disassembly verify legality 10 The fuel tank shall stock manufactured -oz Stunt tank single fuel feed tube top bottom vent tube No uniflow no pres sure systems no quick-fill systems no fuel shut offs other special fuel supply systems al lowed II Fuel 10% nitromethane 25% cas tor oil will provided Racing event contestant will provide fuel choice other events 12 Any commercial glow plug permitted No hot gloves electric mechanical starting de vices allowed Just clip flip 13 Only unmodified 10 x 6 Master Airscrew propellers will allowed Deburring flash ing removal will permitted trade name size markings must easily read 14 Control lines shall 018 diameter 60 ft long 6 measured center line airplane center handle 15 Entire model control system must stand 25-lb pull test 16 Prior start contest pilots meeting will held relate contest conditions announce special site rules go over rules answer questions discuss other important issues per taining contest hand 17 Immediately after pilots meeting participating aircraft will put display spection competitors determine conform ance rules Any violation rules can deter mined during inspection time must brought attention contest officials prior start contest No protests con cerning aircraft legality described above will recognized after first flight contest has begun 18 All engines prize-winning aircraft subject teardown inspection New gas ket kits will furnished SCFCS disqualification teardowns will progress next-place winners Racing event 1 The circle layout shall 68 ft inner circle 76 ft outer circle 2 The pit crew may consist no two people time 3 Qualifying heats a Each heat race shall consist three fliers until two four fliers left four fliers remaining last two races last two races will consist two fliers b Each flier will fly two heat races back-toback fastest time two heats will used determine finishing position c Each heat race will consist 70 laps backto-back two minutes between heats Two mandatory pit stops required 70-lap race entrant completes 70 laps mak ing required number pit stops time shall continue until required number pit stops have completed fly addi tional lap d The six fastest qualifiers shall advance final heats 4 Final heats a Two final heat races three fliers will flown determine finishing position six finalists b Each final heat will consist 140 laps four pit stops 5 All flying shall done between six 20 ft Aircraft being overtaken shall drop lower elevation until overtaking aircraft past Failure comply above criteria shall draw two warnings disqualification OK thats represents 3 pages rule booklet Midwest 700-lap Sport Race end Octo ber brought annual Chicago Treetown Modelaires Meet annual event has become very popular competitors have come Califor nia Wisconsin Kentucky Minnesota Continued page 168 ANY WAY YOU USE THEM ADDS UP TO BETTER PERIORMANCE NYROD THE ORIGINAL &UW PUSH ROD COMPLETE WITH ALL REQUIRED METAL _____________________________ FITTINGS IDEALLY SUITED FOR ANY PUSH ROD ACTION RUDOERS ELEVATORS AILERONS THROTTLE CONTROL BQTS SEA PLANES. YOURjgS1 IMP3INATION S179 34 LONG ASSEMBLED LENGTHCat NYROD SU-PR-UNE PROCUCTS INC iaua SW Rauis 47 E HARDWARE INCLUDED 1 -4 NYRODapter 1 8 Rod 2-56 Threaded end QUADRA ENGINES & SUPERTANKS & SUPERMUH-LLRS ZINGER WOOD PROPS GIANT SCALE R/O PLANS UJDO QUADRA RT 1 NEODESHA KS 66757 316325-2821 DEALERS CALL SEND $1" FOR COMPLETE CATALOG 166 Model Aviation CL Racing/Ballard Continued page 162 0 PERFECT PRIME * ISA QUICK _ WHITE PRIMER Perfect Prime dries flat white providing excellent base coat will distort critical color matches Perfect Prime intensifies true color depth Primes surface wood fiber glass plastic metal paper fabric coverings Sands easily PO Box 2480 usky Ohio 44870 419797-2180 Poxakeet SILpCJL Po4i Paijiswk 40. FREE CATALOG Al Ti4etzofs i4sMg iducpiae 3525-C SE 458 Caurt Scala Florida 32171 904 694-3531 very large contingent local Chicago Racing en thusiasts year event held Ri vahl School parking lot outskirts Rockford IL contest traditionally held end October Midwest contests have long since become history aircraft requires profile body 300sq-in wing plain-bearing single-bypass standard production engine addition seven pit stops required 700 laps cases competitors timed two separate officials us ing two watches year predominant engine K&B 35 plain-bearing typically equipped venturi restrictor suction fuel feed consid erable amount time spent various com petitors honing cylinder liner mating piston-and-ring assembly liner Another trick use high-performance stock 35 bushed connecting rod instead un bushed comes engine majority propellers used aftermarket fiberglass units diameter/pitch around 8 x 7 thinned cut down slightly improve rpm fuel tank required have fill exit tube diameters no /8 no board chicken-hopper-type tanks permit ted Uniflow standard suction tanks types allowed event has become extremely popular novice well semiprofessional enthusi asts airspeeds usually just over 100 mph year decided run two-up Racing since unusually windy situation prevailing day contest Larry Dziak Sr fastest airplane al full second K&B 35s piston/ring/ liner fit produced excellent compression horsepower 5%-nitro fuel supplied contest organizers speed absolutely superior ran fuel tank problems ap proximately 630 laps required fiveminute pit stop remove complete needle valve assembly clean reinstall reset needle valve dropped Larry stand ings first fourth place times 36 37 minutes excellent 700 laps aircraft using suction fuel feed plain-bearing engine seven re quired pit stops John Ballard first 3638 John Stroiny second 3737 Larry Dziak Jr third 3745 Larry D Sr fourth 3827 700-lap race finalists placing close together really put pressure contestants Several competitors merely blew glow plug make extra pit stop factors reduced placings low end list Any small fumble put other 20odd competitors out money New prop manufacturer received letter Mike Hazel Salem OR concerning involvement producing quality fiberglass Racing propellers Mike sent example han diwork form 9 x 6 Slow Rat prop Mike will making props Scale Racing Rat Slow Rat certain am sure will also make other selections Slow Rat prop sent excellent quality cleaned up balanced minimum filing formation price list write Mike Hazel 1073 Windemere Dr NW Salem OR 97304 Cleaning varnish out Cox 049 cylin ders can hassle recently received informa tion concerning alternative method accom plishing needful task As Half-A enthusiasts aware spo radic performance losses drifty needle syn drome exhibited Cox /2A engines can gen erally improved devarnishing bore cylinder past articles Ive described use 0000 steel wool end wooden dowel accomplish procedure received newsletter published Soci ety Antique Modelers edited Bob Angel Santa Maria CA contained informa tion product known Naval Jelly could used accomplish devarnishing Bob indicated particular product nor mally used rust-remover gel can swabbed Cox cylinder using Q-tip removed brush soap water varnish other contaminants cyl inder bore said completely removed havent tried yet after next con test am going try cleaning several cylinders using method As always solicit contributions form ideas photographs questions com ments Timing & Scoring/Kelly Continued page 82 ever since operate same prin ciple isnt necessary know much about perform required modification used old kit servos contained tiny circuit board inte grated circuit few discrete compo nents Since feedback pot 5k con nected two 27k resistors original lo cation feedback pot mounted five-volt relay servo tape con nected coil motor lead ground black power wire normally open contacts relay connected few feet wire 25mm subminiature phone plug stopwatch Thats Continued page 171 Almost Ready Fly. Requires few hours assembly. Includes necessary cr~r~e. Balsa construction precovarad 20-25 SIze CHEROKEE 48 wing apan Special 8V4G46 Sia SHARP 40 SIze now avaIlable 55 Sf Foinn Core Sheeted Wing S&H127 *600 BLBWPO Box 3634 CrrItos CA 907033634 i wee maew Dealer 2131946-12702OSlze-$ 9995InqulrleeCOD MpeeyOrdeoe 40 Size 56AcceptedCleckeAeceptedteflow7eddltlaaleldeye 168 Model Aviation