Contml Line Racing John Ballard RACING FUEL received flurry mail after June column concerning racing fuels limiting same sanctioned contests majority peo ple minor questions concerning blending-in various trick ingredients wllich heard would give extra margin speed received long distance call Vic Garner con cerning statement about stable fuel solutions using castor oil being ob tainable above approximately 30% nitro concentration Vic reminded days mixed fuel increased concentrations nitro nitro beuzine consolvent warming next radiator car can remember couple occasions during old King Orange Interna tional contest keep fuel warm continuallybecause oil separating readily can also remem ber having same trick old cans K&B speed fuel As recall days using conjugated soybean oil would float wads surface warmed can behind radiator car take manifold fuel showed no incom patibility Competitors California K&B fuel made course dont have fly under low-tempera ture conditions Midwest such five 10 degrees below zero times weve competitions temper ature around 400 450 Fahrenheit especially early spring months Low-ultro acceptance have attended four major regional Racing competitions Continued page 82 X BASS SPARS B LEADING EDGE TIP RIB CENTER RIB WOOD CHEEK RIBS SHOWN TWICE SCALE 1/16 BALSA SHEEIiNG BALSA liP Ti I I T ---I ---2% CD 4 116 X 1 BALSA OW TRAIUNG EDGE MIDWEST SPORT RACER Designed ti JERRY MEYER POWER KBB 35 SLEEVE-BEARING WiNGSPAN 34 IN PLY DOUBLER BOTh SIDES USE SHROD p TIP WEIGHT IN RIGHT WING TIP11 DSA /8 PLY RUDDER APLE MOTOR MOUNTS GLENN LEEGLENN LEE TITANIUMA HARD BALSA SHEETLA1/16 BALSA 1A RACINGLANDING GEAR STRUTFROM X 3 X 24 PIECE KCOVER GLUE IN Jerry Meyers Midwest Sport Racer f lies fast wins lot secret appears rocksolid engine mount firm tank mounting strong lightweight construction Very stable October 1984 81 0536 Slow Rat engine has aii beiis whistlesi Look hard youii see rear intake remote needie vaive ewing-weight carb fuei cutoff via fuel-line pincher prim ing tube running oarb underneath machInery exhaust port technological marvel Just think Slow Rat started out beginners event What happened Bolt-On Ball Link 3-piece ball link set readily adaptable linkage hook-ups Ball joint action eliminates binding Ball threaded 4-40 rod bolt Threaded coupler 3/4 long ~ 2-56 thread up 072 wire Self-threading nylon socket No 1801/pkg ivet Ball Link Ideal throttle hook-ups 4-piece ball link set permanent installation Includes 1 steel ball pin washer peening 1 self-threading nylon socket 1 threaded coupler 3/4 long 8 2-56 thread up 072 wire No 1821/pkg Ball Link Sockets Self-threading nylon ball link sockets switching radio another plane can keep same trim setting future flights leaving nylon links pushrods up 072 wire No 1884/pkg 1/16 Threaded Ball Link 4-piece set fits perfectly servo arm hole bellcranks nylon horns throttle arms Set includes 1 balI threaded 0-80 1/16 dia thrd 1 self-threading nylon socket 1 threaded coupler 3/4 long 1/16 ID 3/s 2-56 thread Ion 2-56 Threaded Ball Link 5-piece ball link set excellent off-set steering throttle servo hook-ups Ball threaded for2-S6nut Threaded coupler 3/4 8 2-56 thread up 072 wire Self-threading nylon socket washer 2-56 nut No 1811/pkg Aileron Connector Ball Link 5piece set includes 1 2-way selfthreading nylon socket 2 thr6aded couplers 3/4 long 6 2-56 thread up 072 wire 1 ball threaded 0-80 /16 dia thrd 1 0-80 nut No 1831/pkg Aileron Horn Wire Ball Links Change old strip aileron connectors ball link control Fitting also useful asdual take off connectors 8-piece set includes 2 horn wire ball links /32 dia wire 2 self-threading nylon sockets 2 threaded couplers 3/4 long /16 ID thread 2 4-40 screws No 1891/pkg Heavy Duty 4-40 Ball Link far summer utilized 10% nitro fuel racing events grumbling vocal disagreement 10% nitro ruleas well brand composition fuel sup plieshas quieted considerably Since competitors must run same gal lon jug basically have same problems positive thing 10% nitro fuel has done bring back few old engines dis carded set aside nitro went 60-70% range old K&B 405 Rat Race has made amazing come back engine seems perform ex tremely well l0o nitromuch better present high-tech high-nitro Rat engines Several competitors have found have able run Fox 15 Scale Racing find much competitive long nitro controlled 10% received largest sophisti cated written response after including Bill Lee s summary basic feelings majority Control Line Racing competi tors interspersed Bills personal opinions June issue several letters geographical areas Con trol Line Racing activity well letters Australia Canada majority agreement questioned sizable monetary investment 21 cu Rat engine average Racing competitor five Control Line Racing competi lions have attended highestparticipant event Midwest Sport Race very similar Southwest Sport Race Northwest Sport Race rules interpretation five contests no less 30 competitors entered Sport Race used myriad aircraft types assorted engine/tank combinations Recently particular design Sport Racer has turning some fantastic heat times sleevebearing K&B 35 engine 10% nitro three separate contests Jerry Meyers racer performed 14-15-seconds-perseven-laps speed range phenom enally faster majority other Sport Racers built-up wings and/or solid wings sanded airfoil shape secret Jerrys racer total aircraft lightweight extremely sturdy fuselage engine mounting area wing cross section inch thick its midpoint wing rigidity improved use two spars down center section tank Jerry uses merely Fox stunt tank overflow tube removed installed top tank directed airflow make tank uniflow Jerrys positioning wing has given just right amount fuselage area engine shutoff mounting tank fits comfortably overcrowding weakening Continued page 167 82 Model Aviation K heavy duty ball link perfect /4 scale application 5-piece kit includes 1 ball 4-40 thread 1 self threading 4-40 nyhi socket 1 4-40 stud 1 /32 ID brass 1 4-40 lock nut 1/ ec 238 points Second place Ken Ciroves Fike Dream E best flight 147 ec scoring 231 points Bob Bienensteins Fike E scored 177 points best flight f 108 sec AMA Scale Groves Fike Dream E won two maximum flights 96 tatic score McGillivrays 5E5 flew very well scoring two maximum flights Lotal score 185 Third place went Doc Martins Cessna AW score f 1695 points [n retrospect Third US Indoor Championships ran very smoothly because excellent work Con est Directors Tony Italiano Hardy Brodersen Charlie Sotich Gordon Wisniewski thanks round spplause Thanks also go Richard Aelody Doig securing contest site nd Bill Paul Shailor help Ln site preparation final tally showed Lhat 55 contestants entered weather excellent too hot [y thunderstorm interrupted flying Better still years meet proved Lhe good times comradery US Indoor Championships tied West Baden good effect because fliers spectators attend look forward next years US Indoor Cham pionships wherever may CL RacinglBallard Continued page 82 fuselage section Midwest area find Glen Lee titanium landing gear 1 A-inch wheel make sturdy landing gear some rough areas must occasionally fly Slow Rat engine shut-off swingweight assembly Several competitors past have asked simple unit would utilize swing-weight car buretor 05 36 engine well fuel shutoff needle valve assembly have photographed shows detail fairly accurately brass steel tube soldered inlet reardraft carburetor eliminate bends tub ing metal tube used primer exhaust standard inlet mounted side fuel tubing run under fuel shutoff shutoff body itself used mount arm swing-weight carburetor also hold needle valve assembly securely mounted rear backplate cover engine keeps unit compact vibration-free have found trial error two-man pit crew Slow Rat man datory man fills tank starts engine other man holds aircraft applies battery method just two jobs man eliminates foul-ups pits keeps ground time minimum Fast-fill damage during pit stops Lately have seen several competitors end up extremely sour engine runs forced make shutoff during Racing competi tion culprit rubber fast-fill attached tank type used majority Racing aircraft problem arises extremely large neck fuel-filler bulbs jammed soft rubber quick-fill actually tear puncture small hole fragile rubber holes very difficult observe very possible have poor performance uneven needle setting result small pinhole have watched considerable terest several premier pitmen will slide neck filler bulb quick-fill orifice angle straight down top Obvious ly engine shut off quickfill swelled position pressure still tank bringing filler pipe straight down very easy tear rubber ballooned swelled areas going angle pressure released quickly chance damage rubber minimized addition find fast-fills become embrittled very quickly will hold satisfactory seal under hightank-pressure conditions Under race con ditions obviously certain amount vibration aircraft evident checking-out rub ber fast-fill home another common occurrence involves large-diameter metal stems usually mounted racing tanks fast-fill attached small hairline cracks develop solder joint between stem tank generally make very generous radius out solder point continual engine vibration jolts caused inserting filler tube fast-fill rough landings will crack joint allow tank-pres sure leaks tank pressureleaks using pressuretank will certainly get er ratic engine run As always solicit comments photos appreciated John C Ballard 10102 Kimblewick Dr Louisville KY 40223 CL ScalelBoss Continued page 79 stick pulses sent trans mitters RF section modulate signal being broadcast signal received receiver reverse process takes place signal passes receiver RF section decoder pulse stream broken down directed particular servos operation U/Tronics system simply eliminates transmitter receiver RF sections replaced pair insulated wires between control handle REBEL a/c 061 Isom Road San Antonio IX 78216 512 341-6712 FUTABA 7FGK FM W/4 S-12820995 7FGK W/4 S-2818495 6F6W/4 52815495 4FGW/4 S-2814395 4LW/3 5-2810495 S-28 SERVO1895 PLANES ireal Planes T-606195 Great Planes Cap2I406195 Goldberg Sr Falcon 5095 Goldberg Eagle 63 395 Craft Air Drifter II 1795 Crail Air Piece OCake 1795 EPOXY GLUE Descon 30 Minute 9 Ounce 595 Iescnn 5 Minute 9 Ounce 595 Hobbypuxy 118 Ounce 359 Huhbposy IV 8 Ounce 559 Rebel R/C 30 MinnIe 9 Ounce 575 TOP FLIGHT Monokote Opaque 3 Rolls1695 Monukote Trans 3 Rolls1695 Monokote Met. 3 Rolls2095 Heat un1995 Heal Iron1395 CV ANOACRY LATE Hot Stuff HS-I e149 Hut Staff HST-I e149 Hut Stafi HS4 2 Ounce499 Hot Stuff HST4 2 Ounce499 Hot Shot245 Jet Ounce159 Super Jet Ounce159 Jet 2 Ounce915 Super Jet 2 Ounce 25 PIEASE NOTE Prices subject change mantifacttirers prices change items subject asaitabitit time sate Prices erred until nest Model Asiatitn Issuc Sh,ss room prices mu stightti higher isit ole show room ss hi/c San Antonio 104 discutint price list reftinded first order Shipping & Handling Prepaid orders $318 (II Credit Cord orders $595 Oscrseas orders add estimated shipping 25% dcposit reqitired nest time (II 55%satcs rcqiircd Icsas residcnts lersonal checks dclas shipping 5 doss October1984 167 IN STOCK rues tvitvicuu ir nurmw. New 30 CID QUADRA $19995 Raw 22 CID QUADRA $10950 Rag 22 QUADRA$999S Briaighetta Flywheel 01 1996 Rag 22 QUADRA POWER ASSEMBLY ONLY$6460 QUADRA REPAIR 1060 plan parna Jim Menan ERCOUPEPLANS $2395 KIT $23995 Jim Meaner TOMAHAWKPLANS $2395 KIT $25996 Jim Meaner 8BALL TRAINER PLANS $1895 KIT $9995 BALSA BASSWOOD alt niannl 35% OFF Concept FLEET PLANS 02995 KIT 015995 COWL $1995 FLOATS 361/S nude curen $1795 complete kit $3996 FLOATS 48/ acatacores $2195 cotnplete kIt $4796 10 WWt WHEELS *2595 P04W CYLS FLEETn$2596 PLANS SUPER STEARMAN Gudfrayl 92895 STARDUSTER TOO h Brlaigheoal J3 CUB Ne//tn 02996 VOLKSPLANE Chicken Chartial *2396 COCKPIT KITS Tomahawk F4U-1 Spiel/re 02396 Ercoupa 02096 Stearman 87296 Citabria $2496 J3 Cab 92195 ME-109 92395 F/net 92196 US Quadra FUEL TANKS16 9696 32 9796 FIBERGLASS ARROW SHAFTS 5/16 32 lung 5/01000 24-Hour Service. Add S250 poatage Send Sank Check Money Order JIM MESSERS QUALITY MODEL PRODUCTS 106 Valley Vtew Dr gany NY 14706
Edition: Model Aviation - 1984/10
Page Numbers: 81, 82, 167
Edition: Model Aviation - 1984/10
Page Numbers: 81, 82, 167
Contml Line Racing John Ballard RACING FUEL received flurry mail after June column concerning racing fuels limiting same sanctioned contests majority peo ple minor questions concerning blending-in various trick ingredients wllich heard would give extra margin speed received long distance call Vic Garner con cerning statement about stable fuel solutions using castor oil being ob tainable above approximately 30% nitro concentration Vic reminded days mixed fuel increased concentrations nitro nitro beuzine consolvent warming next radiator car can remember couple occasions during old King Orange Interna tional contest keep fuel warm continuallybecause oil separating readily can also remem ber having same trick old cans K&B speed fuel As recall days using conjugated soybean oil would float wads surface warmed can behind radiator car take manifold fuel showed no incom patibility Competitors California K&B fuel made course dont have fly under low-tempera ture conditions Midwest such five 10 degrees below zero times weve competitions temper ature around 400 450 Fahrenheit especially early spring months Low-ultro acceptance have attended four major regional Racing competitions Continued page 82 X BASS SPARS B LEADING EDGE TIP RIB CENTER RIB WOOD CHEEK RIBS SHOWN TWICE SCALE 1/16 BALSA SHEEIiNG BALSA liP Ti I I T ---I ---2% CD 4 116 X 1 BALSA OW TRAIUNG EDGE MIDWEST SPORT RACER Designed ti JERRY MEYER POWER KBB 35 SLEEVE-BEARING WiNGSPAN 34 IN PLY DOUBLER BOTh SIDES USE SHROD p TIP WEIGHT IN RIGHT WING TIP11 DSA /8 PLY RUDDER APLE MOTOR MOUNTS GLENN LEEGLENN LEE TITANIUMA HARD BALSA SHEETLA1/16 BALSA 1A RACINGLANDING GEAR STRUTFROM X 3 X 24 PIECE KCOVER GLUE IN Jerry Meyers Midwest Sport Racer f lies fast wins lot secret appears rocksolid engine mount firm tank mounting strong lightweight construction Very stable October 1984 81 0536 Slow Rat engine has aii beiis whistlesi Look hard youii see rear intake remote needie vaive ewing-weight carb fuei cutoff via fuel-line pincher prim ing tube running oarb underneath machInery exhaust port technological marvel Just think Slow Rat started out beginners event What happened Bolt-On Ball Link 3-piece ball link set readily adaptable linkage hook-ups Ball joint action eliminates binding Ball threaded 4-40 rod bolt Threaded coupler 3/4 long ~ 2-56 thread up 072 wire Self-threading nylon socket No 1801/pkg ivet Ball Link Ideal throttle hook-ups 4-piece ball link set permanent installation Includes 1 steel ball pin washer peening 1 self-threading nylon socket 1 threaded coupler 3/4 long 8 2-56 thread up 072 wire No 1821/pkg Ball Link Sockets Self-threading nylon ball link sockets switching radio another plane can keep same trim setting future flights leaving nylon links pushrods up 072 wire No 1884/pkg 1/16 Threaded Ball Link 4-piece set fits perfectly servo arm hole bellcranks nylon horns throttle arms Set includes 1 balI threaded 0-80 1/16 dia thrd 1 self-threading nylon socket 1 threaded coupler 3/4 long 1/16 ID 3/s 2-56 thread Ion 2-56 Threaded Ball Link 5-piece ball link set excellent off-set steering throttle servo hook-ups Ball threaded for2-S6nut Threaded coupler 3/4 8 2-56 thread up 072 wire Self-threading nylon socket washer 2-56 nut No 1811/pkg Aileron Connector Ball Link 5piece set includes 1 2-way selfthreading nylon socket 2 thr6aded couplers 3/4 long 6 2-56 thread up 072 wire 1 ball threaded 0-80 /16 dia thrd 1 0-80 nut No 1831/pkg Aileron Horn Wire Ball Links Change old strip aileron connectors ball link control Fitting also useful asdual take off connectors 8-piece set includes 2 horn wire ball links /32 dia wire 2 self-threading nylon sockets 2 threaded couplers 3/4 long /16 ID thread 2 4-40 screws No 1891/pkg Heavy Duty 4-40 Ball Link far summer utilized 10% nitro fuel racing events grumbling vocal disagreement 10% nitro ruleas well brand composition fuel sup plieshas quieted considerably Since competitors must run same gal lon jug basically have same problems positive thing 10% nitro fuel has done bring back few old engines dis carded set aside nitro went 60-70% range old K&B 405 Rat Race has made amazing come back engine seems perform ex tremely well l0o nitromuch better present high-tech high-nitro Rat engines Several competitors have found have able run Fox 15 Scale Racing find much competitive long nitro controlled 10% received largest sophisti cated written response after including Bill Lee s summary basic feelings majority Control Line Racing competi tors interspersed Bills personal opinions June issue several letters geographical areas Con trol Line Racing activity well letters Australia Canada majority agreement questioned sizable monetary investment 21 cu Rat engine average Racing competitor five Control Line Racing competi lions have attended highestparticipant event Midwest Sport Race very similar Southwest Sport Race Northwest Sport Race rules interpretation five contests no less 30 competitors entered Sport Race used myriad aircraft types assorted engine/tank combinations Recently particular design Sport Racer has turning some fantastic heat times sleevebearing K&B 35 engine 10% nitro three separate contests Jerry Meyers racer performed 14-15-seconds-perseven-laps speed range phenom enally faster majority other Sport Racers built-up wings and/or solid wings sanded airfoil shape secret Jerrys racer total aircraft lightweight extremely sturdy fuselage engine mounting area wing cross section inch thick its midpoint wing rigidity improved use two spars down center section tank Jerry uses merely Fox stunt tank overflow tube removed installed top tank directed airflow make tank uniflow Jerrys positioning wing has given just right amount fuselage area engine shutoff mounting tank fits comfortably overcrowding weakening Continued page 167 82 Model Aviation K heavy duty ball link perfect /4 scale application 5-piece kit includes 1 ball 4-40 thread 1 self threading 4-40 nyhi socket 1 4-40 stud 1 /32 ID brass 1 4-40 lock nut 1/ ec 238 points Second place Ken Ciroves Fike Dream E best flight 147 ec scoring 231 points Bob Bienensteins Fike E scored 177 points best flight f 108 sec AMA Scale Groves Fike Dream E won two maximum flights 96 tatic score McGillivrays 5E5 flew very well scoring two maximum flights Lotal score 185 Third place went Doc Martins Cessna AW score f 1695 points [n retrospect Third US Indoor Championships ran very smoothly because excellent work Con est Directors Tony Italiano Hardy Brodersen Charlie Sotich Gordon Wisniewski thanks round spplause Thanks also go Richard Aelody Doig securing contest site nd Bill Paul Shailor help Ln site preparation final tally showed Lhat 55 contestants entered weather excellent too hot [y thunderstorm interrupted flying Better still years meet proved Lhe good times comradery US Indoor Championships tied West Baden good effect because fliers spectators attend look forward next years US Indoor Cham pionships wherever may CL RacinglBallard Continued page 82 fuselage section Midwest area find Glen Lee titanium landing gear 1 A-inch wheel make sturdy landing gear some rough areas must occasionally fly Slow Rat engine shut-off swingweight assembly Several competitors past have asked simple unit would utilize swing-weight car buretor 05 36 engine well fuel shutoff needle valve assembly have photographed shows detail fairly accurately brass steel tube soldered inlet reardraft carburetor eliminate bends tub ing metal tube used primer exhaust standard inlet mounted side fuel tubing run under fuel shutoff shutoff body itself used mount arm swing-weight carburetor also hold needle valve assembly securely mounted rear backplate cover engine keeps unit compact vibration-free have found trial error two-man pit crew Slow Rat man datory man fills tank starts engine other man holds aircraft applies battery method just two jobs man eliminates foul-ups pits keeps ground time minimum Fast-fill damage during pit stops Lately have seen several competitors end up extremely sour engine runs forced make shutoff during Racing competi tion culprit rubber fast-fill attached tank type used majority Racing aircraft problem arises extremely large neck fuel-filler bulbs jammed soft rubber quick-fill actually tear puncture small hole fragile rubber holes very difficult observe very possible have poor performance uneven needle setting result small pinhole have watched considerable terest several premier pitmen will slide neck filler bulb quick-fill orifice angle straight down top Obvious ly engine shut off quickfill swelled position pressure still tank bringing filler pipe straight down very easy tear rubber ballooned swelled areas going angle pressure released quickly chance damage rubber minimized addition find fast-fills become embrittled very quickly will hold satisfactory seal under hightank-pressure conditions Under race con ditions obviously certain amount vibration aircraft evident checking-out rub ber fast-fill home another common occurrence involves large-diameter metal stems usually mounted racing tanks fast-fill attached small hairline cracks develop solder joint between stem tank generally make very generous radius out solder point continual engine vibration jolts caused inserting filler tube fast-fill rough landings will crack joint allow tank-pres sure leaks tank pressureleaks using pressuretank will certainly get er ratic engine run As always solicit comments photos appreciated John C Ballard 10102 Kimblewick Dr Louisville KY 40223 CL ScalelBoss Continued page 79 stick pulses sent trans mitters RF section modulate signal being broadcast signal received receiver reverse process takes place signal passes receiver RF section decoder pulse stream broken down directed particular servos operation U/Tronics system simply eliminates transmitter receiver RF sections replaced pair insulated wires between control handle REBEL a/c 061 Isom Road San Antonio IX 78216 512 341-6712 FUTABA 7FGK FM W/4 S-12820995 7FGK W/4 S-2818495 6F6W/4 52815495 4FGW/4 S-2814395 4LW/3 5-2810495 S-28 SERVO1895 PLANES ireal Planes T-606195 Great Planes Cap2I406195 Goldberg Sr Falcon 5095 Goldberg Eagle 63 395 Craft Air Drifter II 1795 Crail Air Piece OCake 1795 EPOXY GLUE Descon 30 Minute 9 Ounce 595 Iescnn 5 Minute 9 Ounce 595 Hobbypuxy 118 Ounce 359 Huhbposy IV 8 Ounce 559 Rebel R/C 30 MinnIe 9 Ounce 575 TOP FLIGHT Monokote Opaque 3 Rolls1695 Monukote Trans 3 Rolls1695 Monokote Met. 3 Rolls2095 Heat un1995 Heal Iron1395 CV ANOACRY LATE Hot Stuff HS-I e149 Hut Staff HST-I e149 Hut Stafi HS4 2 Ounce499 Hot Stuff HST4 2 Ounce499 Hot Shot245 Jet Ounce159 Super Jet Ounce159 Jet 2 Ounce915 Super Jet 2 Ounce 25 PIEASE NOTE Prices subject change mantifacttirers prices change items subject asaitabitit time sate Prices erred until nest Model Asiatitn Issuc Sh,ss room prices mu stightti higher isit ole show room ss hi/c San Antonio 104 discutint price list reftinded first order Shipping & Handling Prepaid orders $318 (II Credit Cord orders $595 Oscrseas orders add estimated shipping 25% dcposit reqitired nest time (II 55%satcs rcqiircd Icsas residcnts lersonal checks dclas shipping 5 doss October1984 167 IN STOCK rues tvitvicuu ir nurmw. New 30 CID QUADRA $19995 Raw 22 CID QUADRA $10950 Rag 22 QUADRA$999S Briaighetta Flywheel 01 1996 Rag 22 QUADRA POWER ASSEMBLY ONLY$6460 QUADRA REPAIR 1060 plan parna Jim Menan ERCOUPEPLANS $2395 KIT $23995 Jim Meaner TOMAHAWKPLANS $2395 KIT $25996 Jim Meaner 8BALL TRAINER PLANS $1895 KIT $9995 BALSA BASSWOOD alt niannl 35% OFF Concept FLEET PLANS 02995 KIT 015995 COWL $1995 FLOATS 361/S nude curen $1795 complete kit $3996 FLOATS 48/ acatacores $2195 cotnplete kIt $4796 10 WWt WHEELS *2595 P04W CYLS FLEETn$2596 PLANS SUPER STEARMAN Gudfrayl 92895 STARDUSTER TOO h Brlaigheoal J3 CUB Ne//tn 02996 VOLKSPLANE Chicken Chartial *2396 COCKPIT KITS Tomahawk F4U-1 Spiel/re 02396 Ercoupa 02096 Stearman 87296 Citabria $2496 J3 Cab 92195 ME-109 92395 F/net 92196 US Quadra FUEL TANKS16 9696 32 9796 FIBERGLASS ARROW SHAFTS 5/16 32 lung 5/01000 24-Hour Service. Add S250 poatage Send Sank Check Money Order JIM MESSERS QUALITY MODEL PRODUCTS 106 Valley Vtew Dr gany NY 14706
Edition: Model Aviation - 1984/10
Page Numbers: 81, 82, 167
Contml Line Racing John Ballard RACING FUEL received flurry mail after June column concerning racing fuels limiting same sanctioned contests majority peo ple minor questions concerning blending-in various trick ingredients wllich heard would give extra margin speed received long distance call Vic Garner con cerning statement about stable fuel solutions using castor oil being ob tainable above approximately 30% nitro concentration Vic reminded days mixed fuel increased concentrations nitro nitro beuzine consolvent warming next radiator car can remember couple occasions during old King Orange Interna tional contest keep fuel warm continuallybecause oil separating readily can also remem ber having same trick old cans K&B speed fuel As recall days using conjugated soybean oil would float wads surface warmed can behind radiator car take manifold fuel showed no incom patibility Competitors California K&B fuel made course dont have fly under low-tempera ture conditions Midwest such five 10 degrees below zero times weve competitions temper ature around 400 450 Fahrenheit especially early spring months Low-ultro acceptance have attended four major regional Racing competitions Continued page 82 X BASS SPARS B LEADING EDGE TIP RIB CENTER RIB WOOD CHEEK RIBS SHOWN TWICE SCALE 1/16 BALSA SHEEIiNG BALSA liP Ti I I T ---I ---2% CD 4 116 X 1 BALSA OW TRAIUNG EDGE MIDWEST SPORT RACER Designed ti JERRY MEYER POWER KBB 35 SLEEVE-BEARING WiNGSPAN 34 IN PLY DOUBLER BOTh SIDES USE SHROD p TIP WEIGHT IN RIGHT WING TIP11 DSA /8 PLY RUDDER APLE MOTOR MOUNTS GLENN LEEGLENN LEE TITANIUMA HARD BALSA SHEETLA1/16 BALSA 1A RACINGLANDING GEAR STRUTFROM X 3 X 24 PIECE KCOVER GLUE IN Jerry Meyers Midwest Sport Racer f lies fast wins lot secret appears rocksolid engine mount firm tank mounting strong lightweight construction Very stable October 1984 81 0536 Slow Rat engine has aii beiis whistlesi Look hard youii see rear intake remote needie vaive ewing-weight carb fuei cutoff via fuel-line pincher prim ing tube running oarb underneath machInery exhaust port technological marvel Just think Slow Rat started out beginners event What happened Bolt-On Ball Link 3-piece ball link set readily adaptable linkage hook-ups Ball joint action eliminates binding Ball threaded 4-40 rod bolt Threaded coupler 3/4 long ~ 2-56 thread up 072 wire Self-threading nylon socket No 1801/pkg ivet Ball Link Ideal throttle hook-ups 4-piece ball link set permanent installation Includes 1 steel ball pin washer peening 1 self-threading nylon socket 1 threaded coupler 3/4 long 8 2-56 thread up 072 wire No 1821/pkg Ball Link Sockets Self-threading nylon ball link sockets switching radio another plane can keep same trim setting future flights leaving nylon links pushrods up 072 wire No 1884/pkg 1/16 Threaded Ball Link 4-piece set fits perfectly servo arm hole bellcranks nylon horns throttle arms Set includes 1 balI threaded 0-80 1/16 dia thrd 1 self-threading nylon socket 1 threaded coupler 3/4 long 1/16 ID 3/s 2-56 thread Ion 2-56 Threaded Ball Link 5-piece ball link set excellent off-set steering throttle servo hook-ups Ball threaded for2-S6nut Threaded coupler 3/4 8 2-56 thread up 072 wire Self-threading nylon socket washer 2-56 nut No 1811/pkg Aileron Connector Ball Link 5piece set includes 1 2-way selfthreading nylon socket 2 thr6aded couplers 3/4 long 6 2-56 thread up 072 wire 1 ball threaded 0-80 /16 dia thrd 1 0-80 nut No 1831/pkg Aileron Horn Wire Ball Links Change old strip aileron connectors ball link control Fitting also useful asdual take off connectors 8-piece set includes 2 horn wire ball links /32 dia wire 2 self-threading nylon sockets 2 threaded couplers 3/4 long /16 ID thread 2 4-40 screws No 1891/pkg Heavy Duty 4-40 Ball Link far summer utilized 10% nitro fuel racing events grumbling vocal disagreement 10% nitro ruleas well brand composition fuel sup plieshas quieted considerably Since competitors must run same gal lon jug basically have same problems positive thing 10% nitro fuel has done bring back few old engines dis carded set aside nitro went 60-70% range old K&B 405 Rat Race has made amazing come back engine seems perform ex tremely well l0o nitromuch better present high-tech high-nitro Rat engines Several competitors have found have able run Fox 15 Scale Racing find much competitive long nitro controlled 10% received largest sophisti cated written response after including Bill Lee s summary basic feelings majority Control Line Racing competi tors interspersed Bills personal opinions June issue several letters geographical areas Con trol Line Racing activity well letters Australia Canada majority agreement questioned sizable monetary investment 21 cu Rat engine average Racing competitor five Control Line Racing competi lions have attended highestparticipant event Midwest Sport Race very similar Southwest Sport Race Northwest Sport Race rules interpretation five contests no less 30 competitors entered Sport Race used myriad aircraft types assorted engine/tank combinations Recently particular design Sport Racer has turning some fantastic heat times sleevebearing K&B 35 engine 10% nitro three separate contests Jerry Meyers racer performed 14-15-seconds-perseven-laps speed range phenom enally faster majority other Sport Racers built-up wings and/or solid wings sanded airfoil shape secret Jerrys racer total aircraft lightweight extremely sturdy fuselage engine mounting area wing cross section inch thick its midpoint wing rigidity improved use two spars down center section tank Jerry uses merely Fox stunt tank overflow tube removed installed top tank directed airflow make tank uniflow Jerrys positioning wing has given just right amount fuselage area engine shutoff mounting tank fits comfortably overcrowding weakening Continued page 167 82 Model Aviation K heavy duty ball link perfect /4 scale application 5-piece kit includes 1 ball 4-40 thread 1 self threading 4-40 nyhi socket 1 4-40 stud 1 /32 ID brass 1 4-40 lock nut 1/ ec 238 points Second place Ken Ciroves Fike Dream E best flight 147 ec scoring 231 points Bob Bienensteins Fike E scored 177 points best flight f 108 sec AMA Scale Groves Fike Dream E won two maximum flights 96 tatic score McGillivrays 5E5 flew very well scoring two maximum flights Lotal score 185 Third place went Doc Martins Cessna AW score f 1695 points [n retrospect Third US Indoor Championships ran very smoothly because excellent work Con est Directors Tony Italiano Hardy Brodersen Charlie Sotich Gordon Wisniewski thanks round spplause Thanks also go Richard Aelody Doig securing contest site nd Bill Paul Shailor help Ln site preparation final tally showed Lhat 55 contestants entered weather excellent too hot [y thunderstorm interrupted flying Better still years meet proved Lhe good times comradery US Indoor Championships tied West Baden good effect because fliers spectators attend look forward next years US Indoor Cham pionships wherever may CL RacinglBallard Continued page 82 fuselage section Midwest area find Glen Lee titanium landing gear 1 A-inch wheel make sturdy landing gear some rough areas must occasionally fly Slow Rat engine shut-off swingweight assembly Several competitors past have asked simple unit would utilize swing-weight car buretor 05 36 engine well fuel shutoff needle valve assembly have photographed shows detail fairly accurately brass steel tube soldered inlet reardraft carburetor eliminate bends tub ing metal tube used primer exhaust standard inlet mounted side fuel tubing run under fuel shutoff shutoff body itself used mount arm swing-weight carburetor also hold needle valve assembly securely mounted rear backplate cover engine keeps unit compact vibration-free have found trial error two-man pit crew Slow Rat man datory man fills tank starts engine other man holds aircraft applies battery method just two jobs man eliminates foul-ups pits keeps ground time minimum Fast-fill damage during pit stops Lately have seen several competitors end up extremely sour engine runs forced make shutoff during Racing competi tion culprit rubber fast-fill attached tank type used majority Racing aircraft problem arises extremely large neck fuel-filler bulbs jammed soft rubber quick-fill actually tear puncture small hole fragile rubber holes very difficult observe very possible have poor performance uneven needle setting result small pinhole have watched considerable terest several premier pitmen will slide neck filler bulb quick-fill orifice angle straight down top Obvious ly engine shut off quickfill swelled position pressure still tank bringing filler pipe straight down very easy tear rubber ballooned swelled areas going angle pressure released quickly chance damage rubber minimized addition find fast-fills become embrittled very quickly will hold satisfactory seal under hightank-pressure conditions Under race con ditions obviously certain amount vibration aircraft evident checking-out rub ber fast-fill home another common occurrence involves large-diameter metal stems usually mounted racing tanks fast-fill attached small hairline cracks develop solder joint between stem tank generally make very generous radius out solder point continual engine vibration jolts caused inserting filler tube fast-fill rough landings will crack joint allow tank-pres sure leaks tank pressureleaks using pressuretank will certainly get er ratic engine run As always solicit comments photos appreciated John C Ballard 10102 Kimblewick Dr Louisville KY 40223 CL ScalelBoss Continued page 79 stick pulses sent trans mitters RF section modulate signal being broadcast signal received receiver reverse process takes place signal passes receiver RF section decoder pulse stream broken down directed particular servos operation U/Tronics system simply eliminates transmitter receiver RF sections replaced pair insulated wires between control handle REBEL a/c 061 Isom Road San Antonio IX 78216 512 341-6712 FUTABA 7FGK FM W/4 S-12820995 7FGK W/4 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