Racing EJBiII Lee MY LAST TWO columns have de voted article appeared Gazette publication FAI Con trol Line Society Well finish time present similar information applies Rat Goodyear OK heres MarIon Gofast Section II Flying Others So far things affecting speed pilot can contribute have discussed mainly pilot out flying himself competi tion presence others circle wont change facts will change what pilot has opportunity ac complish discussion problems necessarily much qualitative impossible estimate speed loss due getting lines caught competi tions hair instance Flying other people presents number problems least passing have faster airplane Soviet Union proposed hand off chest three laps rule provide longer time pass Just much faster have fly pass obeying flying rules inter esting thing Consider two cases both air planes flying constant speed faster airplane having gain 1/s lap b lap covering no two laps tables Table 3 TABLE 3 PASS IN TWO LAPS Laps Gained 1/8 speed-mph 90100110 8449381031 1/4788 875963 PASS IN THREE LAPS Laps Gainedyour speed-mph 90100110 1/88639581054 1/4 825 917 1008 show fastest opponent can pass As plain see under present condi tions strict interpretation rules have have terrific speed margin good 100-mph racer cant squeak 94-mph racer two laps As will soon see blocking AIRPLANE \\ \ CENTER OF ROTATION OT\\\18 thrust hp \\\32 oz weight lB 10 50 -51015 SPEED CHANGE MPH makes worse Getting semis may depend being lucky enough have fly against good slow team wont retire will fly best possible race outcome makes rapid pits Russian proposal will help some can see Table 3 have speed advantage necessary pass presence another pilot circle can take away Taking simplest case first big problem presented pilot occupies center just twirling around heels probably some gorilla should defensive lineman NFL can also lean back alarming spinal curvature Worst cant speak English cant tell him feel Since British rule proposal isnt formal yet cant fly lines over shoulder unless taller 97mph 94mph 1/2 lop separation 1/8 lap separation FIGURE 10 Speed Change Chart Rat Racer Conditions calculations 145 mph pylon 60 lines practical purposes space blocks outspace lines cant pass through space cant occupy approximately rectangle two ft ft Suppose has 95-mph plane have 100-mph plane flying pylon usual simple minded catch-up analysis above wont gain lap him two laps both fly normal speeds undis turbed Still 5 mph him have try pass hope dont get fouled maybe can get done less /s lap case jury faulting him standing blockers profile shaded lines shown Fig 9 plane always toward top page Fig 9 four plates show ing conditions lap /s lap Continued page 88 IN 98 mph / 1/4 lap separation 2 No separat 32 Model Aviation FIGURE 9Effect Pilot Position MORE wi1fld9 same powerYELLOW4 adr G0.sePROPELL Taco e\eeO~ 5 4 304 ~4O-53 54c h trv%o63 64 354 ~ 76 78 504 ~OXI84 86 88 654 94969798 \ 6e-104 10685 11-4 11-6 11-81 lC24 12526150 GRISH BROS ST JOHN INDIANA 46373 available manufacturers interesting item G-2 1 Tigre crank offered Aloise Engineering & De velopment 2314 Loy Ln Los Angeles CA 90041 $2000 get crank 900 rpm faster stock will break B-M cranks still available new Fox Rich Brasher 327 Howland Ave Redwood City CA 94063 price $2000 buy $1800 ordered time Getting back other services offered Aloise company theres heat treating teflon impregnating plus just about modification engine can think Last column talked about using speed course test planes skill pilot Howard Shenton sent copy proposed course basic rules could adapted use contest basic maneuvers follows 1 accelera tion lap 2 Seven level laps maximum altitude 25 feet 3 Three inside loops additional half loop inverted flight 4 Seven level inverted laps maximum altitude 25 feet 5 Two over head eights 6 Refuel restart Howards system would measure phases performance including engine plane pilot pit crew timing would include everything initial launch end figure-eights Tim ing would again resume engine cut continue pit crew refueled restarted engine watch being stopped model released oversimplification what Howard mind Im hoping full details will published MACA Newsletter test basic performance model might easier time 10 laps moment launch require pilot three insides three outsides what ever number think proves something Heres chance some enter 130-mph work bench open competition Bill Allens Combat Specialties another performance company offering everything spools flying lines 4-oz syringes Fireball plugs special sealant BR-22 Bill located 418 Fairmont Dr DeKaIb IL 60115 Write guys information want get latest trick items combat ships Richard Wilkens reports largest crowd history watch combat match happened Wembly during warmup British Football Championships over 100000 attendance roar deafening crowd called cuts crowd promoters liked modelers better other act will ask back next year excuses us old timers usual excuse younger person beats unfair advantage because younger hence better reac tions typical reaction time given stimulus might 1/10th second opponent pulls front giving perfect shot streamer make right decision youre 50 60 years old reaction time wont much different 18-year-olds its just react matters older get cluttered mind becomes things brain has ana lyze make right decision swer blank out mind Some peo ple born way others must learn dont need Guru help clear mind unnecessary thoughts Worry about way turn about losing plane car payments whether engine will blow up Charlie Johnson 3716 Ingraham St San Diego CA 92109 CL Racing/Lee continued page 32 him Half lap apart has pushed out little 97 does 94 because increased flying radius other plates effective speed 94 Note yours brought down closer get flying speed differences calculated Fig 6 time get close enough pass has forced large walking circle speed differential lost Clearly jury doesnt call him will ruin time improve own kind conduct jurys first duty stop standpoint jury psy chology what crucial pointed out earlier get behind him whip possible pass him right away estab lish jurys mind superior speed right pass get fouled first attempt can always cool take lumps later Well pretty well completes arti cle appeared Gazette short ly after first columns appeared MA Marlon asked would like speedchange chart Rat similar the FAI Team Racer saw Fig 6 Its presented column Fig 10 basic assumption chart Nats-class Rat ie 145 mph flown pylon 145 mph 124 32 oz weight about right 18 thrust horse power 60-foot lines course Some interesting observations Fig 10 watching few good Rat pilots 5-mph loss airspeed probably about normal situation since pilots flying handle travel ing circle about foot radius keeping up plane lagging behindnot little bitthey losing about 3 mph follow plane around some degree losing speed Another point must watched closely official what really whip ping Again having watched some good Rat pilots flying feel pilot has exert awful lot physi cal effort just stay good Rat effort may look great deal like whipping outside circle es 88 Model Aviation 2 Blade Pusher b43544 6364354 8-6854 9-6106 1 3 Blade Tractor 5-354 5-3 6-4 504 3 Blade Pusher 6-3504 FINE QUALITY KITS AND ACCESSORIES SCALE PLASTIC KITS FLYING MODEL ACCESSORIES SCALE PILOTS INE GUNS WHEELS & WHEEL PANTS ENGINE KITS & CYLINDERS SEND 504 FOR COMPLETE CATALOG Dept MA 181 PAWNEE STREET iLLIAMS MARCOS CALIFORNIA e 92069 £ DRAWINGS/i * FOXUAT MORRISON1977 CATALOG 25$ EPLA-TECH 48500 MC KENZIE HWY InIerrOtIonOI VIDA OREGON 97488 HIGH POWER ULTRA SONIC CLEANER THE INVADER 1/12th scale metal car revolution car technology Front rear wheel suspension Uses alt standard parts Car designed performance Patents applied cteaner has patented Power Pump circuit nearly doubles power over cleaners same size Required top performance 2 & 4 quart sizes No 175 21 Quart No 176 46 Quart 8 oz Detergent qt Detergent As shown less eng & radio $8850 Chassis factory assembled $76a5 PISTON SETTING TOOL CDX 049 engines HARDENED STEELANODIZED No TRA503$325 $165 $185 $1 95 $342 MUFF-L-IT SERIES Six eight Db reduction noise moat engines Proportional votumne expansion chamber Triple reflective Intermediate chamber Large exhaust ~zzle low back pressure Little loss power Available B C engines No 301 09-19 $749 No 3229- 40$839 No 303 45-80 $949 NEW 1/2A MUFFLER FIts COX 049 engines new uffler gives significant noise reduction ith very little power loss Back facing ozzle No 300A049$549 No 3008051$549 rear eshaut SCIINIERLE ennines pecially dont know what whipping really have watch pilot es tablish point view just what center rotation see relation center rotation airplane looking pilot handle goes past center rotation before plane goes past edge circle whipping plane handle go past center rotation together whip ping plane goes before handle definitely slowing down plane can produce speed-change charts rather easily interest Ill draw up couple Goodyear Slow Rat Another approach might nomograph takes vari ables account directly Interested wrtte W R Lee 3S22 Tamarisk Lane Mis souri City TX 774S9 CL Aerobatics/Paul continued page 33 cannot feel much power loss stated shortens muffler has drilled some large holes end reduce back pressure address manufacturer available shops Slim Line Mufflers 8631 E Roanoke Scottsdale AZ 85257 product review product review product review BLADE ANDAILERON GUIDC PORWIRE Kwik Hinge Slotter Completely universal tool automatically aligns guides blade perfect hinge slots Three hardened steel blades Included two both large small hinges picker cleaning out slotsall fit No 2 X-Acto knife Nylon Alignment Jig Automatic jig features three snap-on guides two large small hinges drill guide hinges ail eron wire Fits 1/8 % balsa makes right size slot hole hinge market Alignment jig attachments cost $125 Replacement blades available 35 cents Du-Bro Products Inc 480 Bonner Rd Weuconda IL 50084 product review product review product review DuBro Universal MU 795 muffler has used several Nationals qualifiers both Max 35 ST 46 Bob Whitely Rich LeRoy have utilized some slight cutting drilling fitting Air Foil muffler JCM Specialties small size 19-25 package shaped like airfoil will bolt right ST 46 Some modification needed Max Fox Fox No 90222 muffler made Fox 35 course bolts right up Musumeci Connection father son has using its Fox after re moving inside tube creating large chamber Works well cuts weight popular mufflers past couple years has Art Adamisin creation aluminum bar stock However Art injured good hand production has stalled over winter want excellent mufflers would best write Art 22454 Fairfax Taylor MI 48180 mufflers have used Bob Hunt Gene Schaffer Les McDonald Dave Hemstrought Ted Fancher Bill Fitzgerald similarity between Adamisin muffler recent Gene Martine muffler Both excellent products Semco muffler no 202 CL 2940 engines priced $1295 will bolt right up Max ST 46 weight October1977 89 \ ft I AVAILABLE SDDN M,fflae fnr all
Edition: Model Aviation - 1977/10
Page Numbers: 32, 88, 89
Racing EJBiII Lee MY LAST TWO columns have de voted article appeared Gazette publication FAI Con trol Line Society Well finish time present similar information applies Rat Goodyear OK heres MarIon Gofast Section II Flying Others So far things affecting speed pilot can contribute have discussed mainly pilot out flying himself competi tion presence others circle wont change facts will change what pilot has opportunity ac complish discussion problems necessarily much qualitative impossible estimate speed loss due getting lines caught competi tions hair instance Flying other people presents number problems least passing have faster airplane Soviet Union proposed hand off chest three laps rule provide longer time pass Just much faster have fly pass obeying flying rules inter esting thing Consider two cases both air planes flying constant speed faster airplane having gain 1/s lap b lap covering no two laps tables Table 3 TABLE 3 PASS IN TWO LAPS Laps Gained 1/8 speed-mph 90100110 8449381031 1/4788 875963 PASS IN THREE LAPS Laps Gainedyour speed-mph 90100110 1/88639581054 1/4 825 917 1008 show fastest opponent can pass As plain see under present condi tions strict interpretation rules have have terrific speed margin good 100-mph racer cant squeak 94-mph racer two laps As will soon see blocking AIRPLANE \\ \ CENTER OF ROTATION OT\\\18 thrust hp \\\32 oz weight lB 10 50 -51015 SPEED CHANGE MPH makes worse Getting semis may depend being lucky enough have fly against good slow team wont retire will fly best possible race outcome makes rapid pits Russian proposal will help some can see Table 3 have speed advantage necessary pass presence another pilot circle can take away Taking simplest case first big problem presented pilot occupies center just twirling around heels probably some gorilla should defensive lineman NFL can also lean back alarming spinal curvature Worst cant speak English cant tell him feel Since British rule proposal isnt formal yet cant fly lines over shoulder unless taller 97mph 94mph 1/2 lop separation 1/8 lap separation FIGURE 10 Speed Change Chart Rat Racer Conditions calculations 145 mph pylon 60 lines practical purposes space blocks outspace lines cant pass through space cant occupy approximately rectangle two ft ft Suppose has 95-mph plane have 100-mph plane flying pylon usual simple minded catch-up analysis above wont gain lap him two laps both fly normal speeds undis turbed Still 5 mph him have try pass hope dont get fouled maybe can get done less /s lap case jury faulting him standing blockers profile shaded lines shown Fig 9 plane always toward top page Fig 9 four plates show ing conditions lap /s lap Continued page 88 IN 98 mph / 1/4 lap separation 2 No separat 32 Model Aviation FIGURE 9Effect Pilot Position MORE wi1fld9 same powerYELLOW4 adr G0.sePROPELL Taco e\eeO~ 5 4 304 ~4O-53 54c h trv%o63 64 354 ~ 76 78 504 ~OXI84 86 88 654 94969798 \ 6e-104 10685 11-4 11-6 11-81 lC24 12526150 GRISH BROS ST JOHN INDIANA 46373 available manufacturers interesting item G-2 1 Tigre crank offered Aloise Engineering & De velopment 2314 Loy Ln Los Angeles CA 90041 $2000 get crank 900 rpm faster stock will break B-M cranks still available new Fox Rich Brasher 327 Howland Ave Redwood City CA 94063 price $2000 buy $1800 ordered time Getting back other services offered Aloise company theres heat treating teflon impregnating plus just about modification engine can think Last column talked about using speed course test planes skill pilot Howard Shenton sent copy proposed course basic rules could adapted use contest basic maneuvers follows 1 accelera tion lap 2 Seven level laps maximum altitude 25 feet 3 Three inside loops additional half loop inverted flight 4 Seven level inverted laps maximum altitude 25 feet 5 Two over head eights 6 Refuel restart Howards system would measure phases performance including engine plane pilot pit crew timing would include everything initial launch end figure-eights Tim ing would again resume engine cut continue pit crew refueled restarted engine watch being stopped model released oversimplification what Howard mind Im hoping full details will published MACA Newsletter test basic performance model might easier time 10 laps moment launch require pilot three insides three outsides what ever number think proves something Heres chance some enter 130-mph work bench open competition Bill Allens Combat Specialties another performance company offering everything spools flying lines 4-oz syringes Fireball plugs special sealant BR-22 Bill located 418 Fairmont Dr DeKaIb IL 60115 Write guys information want get latest trick items combat ships Richard Wilkens reports largest crowd history watch combat match happened Wembly during warmup British Football Championships over 100000 attendance roar deafening crowd called cuts crowd promoters liked modelers better other act will ask back next year excuses us old timers usual excuse younger person beats unfair advantage because younger hence better reac tions typical reaction time given stimulus might 1/10th second opponent pulls front giving perfect shot streamer make right decision youre 50 60 years old reaction time wont much different 18-year-olds its just react matters older get cluttered mind becomes things brain has ana lyze make right decision swer blank out mind Some peo ple born way others must learn dont need Guru help clear mind unnecessary thoughts Worry about way turn about losing plane car payments whether engine will blow up Charlie Johnson 3716 Ingraham St San Diego CA 92109 CL Racing/Lee continued page 32 him Half lap apart has pushed out little 97 does 94 because increased flying radius other plates effective speed 94 Note yours brought down closer get flying speed differences calculated Fig 6 time get close enough pass has forced large walking circle speed differential lost Clearly jury doesnt call him will ruin time improve own kind conduct jurys first duty stop standpoint jury psy chology what crucial pointed out earlier get behind him whip possible pass him right away estab lish jurys mind superior speed right pass get fouled first attempt can always cool take lumps later Well pretty well completes arti cle appeared Gazette short ly after first columns appeared MA Marlon asked would like speedchange chart Rat similar the FAI Team Racer saw Fig 6 Its presented column Fig 10 basic assumption chart Nats-class Rat ie 145 mph flown pylon 145 mph 124 32 oz weight about right 18 thrust horse power 60-foot lines course Some interesting observations Fig 10 watching few good Rat pilots 5-mph loss airspeed probably about normal situation since pilots flying handle travel ing circle about foot radius keeping up plane lagging behindnot little bitthey losing about 3 mph follow plane around some degree losing speed Another point must watched closely official what really whip ping Again having watched some good Rat pilots flying feel pilot has exert awful lot physi cal effort just stay good Rat effort may look great deal like whipping outside circle es 88 Model Aviation 2 Blade Pusher b43544 6364354 8-6854 9-6106 1 3 Blade Tractor 5-354 5-3 6-4 504 3 Blade Pusher 6-3504 FINE QUALITY KITS AND ACCESSORIES SCALE PLASTIC KITS FLYING MODEL ACCESSORIES SCALE PILOTS INE GUNS WHEELS & WHEEL PANTS ENGINE KITS & CYLINDERS SEND 504 FOR COMPLETE CATALOG Dept MA 181 PAWNEE STREET iLLIAMS MARCOS CALIFORNIA e 92069 £ DRAWINGS/i * FOXUAT MORRISON1977 CATALOG 25$ EPLA-TECH 48500 MC KENZIE HWY InIerrOtIonOI VIDA OREGON 97488 HIGH POWER ULTRA SONIC CLEANER THE INVADER 1/12th scale metal car revolution car technology Front rear wheel suspension Uses alt standard parts Car designed performance Patents applied cteaner has patented Power Pump circuit nearly doubles power over cleaners same size Required top performance 2 & 4 quart sizes No 175 21 Quart No 176 46 Quart 8 oz Detergent qt Detergent As shown less eng & radio $8850 Chassis factory assembled $76a5 PISTON SETTING TOOL CDX 049 engines HARDENED STEELANODIZED No TRA503$325 $165 $185 $1 95 $342 MUFF-L-IT SERIES Six eight Db reduction noise moat engines Proportional votumne expansion chamber Triple reflective Intermediate chamber Large exhaust ~zzle low back pressure Little loss power Available B C engines No 301 09-19 $749 No 3229- 40$839 No 303 45-80 $949 NEW 1/2A MUFFLER FIts COX 049 engines new uffler gives significant noise reduction ith very little power loss Back facing ozzle No 300A049$549 No 3008051$549 rear eshaut SCIINIERLE ennines pecially dont know what whipping really have watch pilot es tablish point view just what center rotation see relation center rotation airplane looking pilot handle goes past center rotation before plane goes past edge circle whipping plane handle go past center rotation together whip ping plane goes before handle definitely slowing down plane can produce speed-change charts rather easily interest Ill draw up couple Goodyear Slow Rat Another approach might nomograph takes vari ables account directly Interested wrtte W R Lee 3S22 Tamarisk Lane Mis souri City TX 774S9 CL Aerobatics/Paul continued page 33 cannot feel much power loss stated shortens muffler has drilled some large holes end reduce back pressure address manufacturer available shops Slim Line Mufflers 8631 E Roanoke Scottsdale AZ 85257 product review product review product review BLADE ANDAILERON GUIDC PORWIRE Kwik Hinge Slotter Completely universal tool automatically aligns guides blade perfect hinge slots Three hardened steel blades Included two both large small hinges picker cleaning out slotsall fit No 2 X-Acto knife Nylon Alignment Jig Automatic jig features three snap-on guides two large small hinges drill guide hinges ail eron wire Fits 1/8 % balsa makes right size slot hole hinge market Alignment jig attachments cost $125 Replacement blades available 35 cents Du-Bro Products Inc 480 Bonner Rd Weuconda IL 50084 product review product review product review DuBro Universal MU 795 muffler has used several Nationals qualifiers both Max 35 ST 46 Bob Whitely Rich LeRoy have utilized some slight cutting drilling fitting Air Foil muffler JCM Specialties small size 19-25 package shaped like airfoil will bolt right ST 46 Some modification needed Max Fox Fox No 90222 muffler made Fox 35 course bolts right up Musumeci Connection father son has using its Fox after re moving inside tube creating large chamber Works well cuts weight popular mufflers past couple years has Art Adamisin creation aluminum bar stock However Art injured good hand production has stalled over winter want excellent mufflers would best write Art 22454 Fairfax Taylor MI 48180 mufflers have used Bob Hunt Gene Schaffer Les McDonald Dave Hemstrought Ted Fancher Bill Fitzgerald similarity between Adamisin muffler recent Gene Martine muffler Both excellent products Semco muffler no 202 CL 2940 engines priced $1295 will bolt right up Max ST 46 weight October1977 89 \ ft I AVAILABLE SDDN M,fflae fnr all
Edition: Model Aviation - 1977/10
Page Numbers: 32, 88, 89
Racing EJBiII Lee MY LAST TWO columns have de voted article appeared Gazette publication FAI Con trol Line Society Well finish time present similar information applies Rat Goodyear OK heres MarIon Gofast Section II Flying Others So far things affecting speed pilot can contribute have discussed mainly pilot out flying himself competi tion presence others circle wont change facts will change what pilot has opportunity ac complish discussion problems necessarily much qualitative impossible estimate speed loss due getting lines caught competi tions hair instance Flying other people presents number problems least passing have faster airplane Soviet Union proposed hand off chest three laps rule provide longer time pass Just much faster have fly pass obeying flying rules inter esting thing Consider two cases both air planes flying constant speed faster airplane having gain 1/s lap b lap covering no two laps tables Table 3 TABLE 3 PASS IN TWO LAPS Laps Gained 1/8 speed-mph 90100110 8449381031 1/4788 875963 PASS IN THREE LAPS Laps Gainedyour speed-mph 90100110 1/88639581054 1/4 825 917 1008 show fastest opponent can pass As plain see under present condi tions strict interpretation rules have have terrific speed margin good 100-mph racer cant squeak 94-mph racer two laps As will soon see blocking AIRPLANE \\ \ CENTER OF ROTATION OT\\\18 thrust hp \\\32 oz weight lB 10 50 -51015 SPEED CHANGE MPH makes worse Getting semis may depend being lucky enough have fly against good slow team wont retire will fly best possible race outcome makes rapid pits Russian proposal will help some can see Table 3 have speed advantage necessary pass presence another pilot circle can take away Taking simplest case first big problem presented pilot occupies center just twirling around heels probably some gorilla should defensive lineman NFL can also lean back alarming spinal curvature Worst cant speak English cant tell him feel Since British rule proposal isnt formal yet cant fly lines over shoulder unless taller 97mph 94mph 1/2 lop separation 1/8 lap separation FIGURE 10 Speed Change Chart Rat Racer Conditions calculations 145 mph pylon 60 lines practical purposes space blocks outspace lines cant pass through space cant occupy approximately rectangle two ft ft Suppose has 95-mph plane have 100-mph plane flying pylon usual simple minded catch-up analysis above wont gain lap him two laps both fly normal speeds undis turbed Still 5 mph him have try pass hope dont get fouled maybe can get done less /s lap case jury faulting him standing blockers profile shaded lines shown Fig 9 plane always toward top page Fig 9 four plates show ing conditions lap /s lap Continued page 88 IN 98 mph / 1/4 lap separation 2 No separat 32 Model Aviation FIGURE 9Effect Pilot Position MORE wi1fld9 same powerYELLOW4 adr G0.sePROPELL Taco e\eeO~ 5 4 304 ~4O-53 54c h trv%o63 64 354 ~ 76 78 504 ~OXI84 86 88 654 94969798 \ 6e-104 10685 11-4 11-6 11-81 lC24 12526150 GRISH BROS ST JOHN INDIANA 46373 available manufacturers interesting item G-2 1 Tigre crank offered Aloise Engineering & De velopment 2314 Loy Ln Los Angeles CA 90041 $2000 get crank 900 rpm faster stock will break B-M cranks still available new Fox Rich Brasher 327 Howland Ave Redwood City CA 94063 price $2000 buy $1800 ordered time Getting back other services offered Aloise company theres heat treating teflon impregnating plus just about modification engine can think Last column talked about using speed course test planes skill pilot Howard Shenton sent copy proposed course basic rules could adapted use contest basic maneuvers follows 1 accelera tion lap 2 Seven level laps maximum altitude 25 feet 3 Three inside loops additional half loop inverted flight 4 Seven level inverted laps maximum altitude 25 feet 5 Two over head eights 6 Refuel restart Howards system would measure phases performance including engine plane pilot pit crew timing would include everything initial launch end figure-eights Tim ing would again resume engine cut continue pit crew refueled restarted engine watch being stopped model released oversimplification what Howard mind Im hoping full details will published MACA Newsletter test basic performance model might easier time 10 laps moment launch require pilot three insides three outsides what ever number think proves something Heres chance some enter 130-mph work bench open competition Bill Allens Combat Specialties another performance company offering everything spools flying lines 4-oz syringes Fireball plugs special sealant BR-22 Bill located 418 Fairmont Dr DeKaIb IL 60115 Write guys information want get latest trick items combat ships Richard Wilkens reports largest crowd history watch combat match happened Wembly during warmup British Football Championships over 100000 attendance roar deafening crowd called cuts crowd promoters liked modelers better other act will ask back next year excuses us old timers usual excuse younger person beats unfair advantage because younger hence better reac tions typical reaction time given stimulus might 1/10th second opponent pulls front giving perfect shot streamer make right decision youre 50 60 years old reaction time wont much different 18-year-olds its just react matters older get cluttered mind becomes things brain has ana lyze make right decision swer blank out mind Some peo ple born way others must learn dont need Guru help clear mind unnecessary thoughts Worry about way turn about losing plane car payments whether engine will blow up Charlie Johnson 3716 Ingraham St San Diego CA 92109 CL Racing/Lee continued page 32 him Half lap apart has pushed out little 97 does 94 because increased flying radius other plates effective speed 94 Note yours brought down closer get flying speed differences calculated Fig 6 time get close enough pass has forced large walking circle speed differential lost Clearly jury doesnt call him will ruin time improve own kind conduct jurys first duty stop standpoint jury psy chology what crucial pointed out earlier get behind him whip possible pass him right away estab lish jurys mind superior speed right pass get fouled first attempt can always cool take lumps later Well pretty well completes arti cle appeared Gazette short ly after first columns appeared MA Marlon asked would like speedchange chart Rat similar the FAI Team Racer saw Fig 6 Its presented column Fig 10 basic assumption chart Nats-class Rat ie 145 mph flown pylon 145 mph 124 32 oz weight about right 18 thrust horse power 60-foot lines course Some interesting observations Fig 10 watching few good Rat pilots 5-mph loss airspeed probably about normal situation since pilots flying handle travel ing circle about foot radius keeping up plane lagging behindnot little bitthey losing about 3 mph follow plane around some degree losing speed Another point must watched closely official what really whip ping Again having watched some good Rat pilots flying feel pilot has exert awful lot physi cal effort just stay good Rat effort may look great deal like whipping outside circle es 88 Model Aviation 2 Blade Pusher b43544 6364354 8-6854 9-6106 1 3 Blade Tractor 5-354 5-3 6-4 504 3 Blade Pusher 6-3504 FINE QUALITY KITS AND ACCESSORIES SCALE PLASTIC KITS FLYING MODEL ACCESSORIES SCALE PILOTS INE GUNS WHEELS & WHEEL PANTS ENGINE KITS & CYLINDERS SEND 504 FOR COMPLETE CATALOG Dept MA 181 PAWNEE STREET iLLIAMS MARCOS CALIFORNIA e 92069 £ DRAWINGS/i * FOXUAT MORRISON1977 CATALOG 25$ EPLA-TECH 48500 MC KENZIE HWY InIerrOtIonOI VIDA OREGON 97488 HIGH POWER ULTRA SONIC CLEANER THE INVADER 1/12th scale metal car revolution car technology Front rear wheel suspension Uses alt standard parts Car designed performance Patents applied cteaner has patented Power Pump circuit nearly doubles power over cleaners same size Required top performance 2 & 4 quart sizes No 175 21 Quart No 176 46 Quart 8 oz Detergent qt Detergent As shown less eng & radio $8850 Chassis factory assembled $76a5 PISTON SETTING TOOL CDX 049 engines HARDENED STEELANODIZED No TRA503$325 $165 $185 $1 95 $342 MUFF-L-IT SERIES Six eight Db reduction noise moat engines Proportional votumne expansion chamber Triple reflective Intermediate chamber Large exhaust ~zzle low back pressure Little loss power Available B C engines No 301 09-19 $749 No 3229- 40$839 No 303 45-80 $949 NEW 1/2A MUFFLER FIts COX 049 engines new uffler gives significant noise reduction ith very little power loss Back facing ozzle No 300A049$549 No 3008051$549 rear eshaut SCIINIERLE ennines pecially dont know what whipping really have watch pilot es tablish point view just what center rotation see relation center rotation airplane looking pilot handle goes past center rotation before plane goes past edge circle whipping plane handle go past center rotation together whip ping plane goes before handle definitely slowing down plane can produce speed-change charts rather easily interest Ill draw up couple Goodyear Slow Rat Another approach might nomograph takes vari ables account directly Interested wrtte W R Lee 3S22 Tamarisk Lane Mis souri City TX 774S9 CL Aerobatics/Paul continued page 33 cannot feel much power loss stated shortens muffler has drilled some large holes end reduce back pressure address manufacturer available shops Slim Line Mufflers 8631 E Roanoke Scottsdale AZ 85257 product review product review product review BLADE ANDAILERON GUIDC PORWIRE Kwik Hinge Slotter Completely universal tool automatically aligns guides blade perfect hinge slots Three hardened steel blades Included two both large small hinges picker cleaning out slotsall fit No 2 X-Acto knife Nylon Alignment Jig Automatic jig features three snap-on guides two large small hinges drill guide hinges ail eron wire Fits 1/8 % balsa makes right size slot hole hinge market Alignment jig attachments cost $125 Replacement blades available 35 cents Du-Bro Products Inc 480 Bonner Rd Weuconda IL 50084 product review product review product review DuBro Universal MU 795 muffler has used several Nationals qualifiers both Max 35 ST 46 Bob Whitely Rich LeRoy have utilized some slight cutting drilling fitting Air Foil muffler JCM Specialties small size 19-25 package shaped like airfoil will bolt right ST 46 Some modification needed Max Fox Fox No 90222 muffler made Fox 35 course bolts right up Musumeci Connection father son has using its Fox after re moving inside tube creating large chamber Works well cuts weight popular mufflers past couple years has Art Adamisin creation aluminum bar stock However Art injured good hand production has stalled over winter want excellent mufflers would best write Art 22454 Fairfax Taylor MI 48180 mufflers have used Bob Hunt Gene Schaffer Les McDonald Dave Hemstrought Ted Fancher Bill Fitzgerald similarity between Adamisin muffler recent Gene Martine muffler Both excellent products Semco muffler no 202 CL 2940 engines priced $1295 will bolt right up Max ST 46 weight October1977 89 \ ft I AVAILABLE SDDN M,fflae fnr all