Control Line Speed Gene Hempel JETS AGAIN months column covers two excellent bits information concerning Jet mod els first letter Dimmitt Perkins* Houston TX explaining evolution sport Jet fuel came about latter article ex plains new torque unit designed Jerry Tho mas* Jet D Speed models Heres Dimmitt NASS North American Speed Societyed Banquet asked Charlie Davis came up sport Jet fuel con taining MEK methanol Heres story About year maybe year-and-a-half ago Charlie called ihe idea sport event Jet low-key event promote Jet models Youve run couple articles pro posed rules model plans got discussing fuels agreed several require ments 1 The fuel should easy-starting 2 It should have wide combustion range metering jets would critical also make possible operation pressurized fuel tank upright sidewinder model requirement would also reduce weather effects 3 It would cheap 4 The ingredients should easy obtain common Jet fuel ingredients gasoline certainly cheap flam mability range about 15% 75% volume air can critical respect metering jetsespecially run pressure Nitromethane L-41flt .sP .sa*aL / tAiM eo 040 doe 70 ..n .a/sa r .S4 000 adOAoS S000F0O Nsa I- ~1S 4I-/ 749 12 Li OSS 000 *542 AS0 Fe 004#*O0 49A14 Ji AZSV*70C SWi*M .0Oet frr/ 0057Z0 S00u i _7iI 40 -J 141000 AlMa cit 54 o-na Sn .0 ACJWAO cc 497 ne 420 7090 44f49 12 z4 095 ficOR p9oe5 SlOt VS. ffA7h f Aiwo XT*S0M Lesta iK parts Jerry Thomas one-line control unit Note drawn scaie Good 0 Speed too 74 Model Aviation Joe Kinna new asym metrical sidewinder Jet Speed modei uses Jerry Thomas-designed one-iine torque-operated controi unit Heres Jerry Thomsa new oontroi unit instaiis Jet Speed modei propylene oxide mixtures have good operatingBut methanol itself good Jet fuel characteristics definitely cheap Meth-It lacks range power Hydrocarbons like gaso anol relatively cheap easy obtain withline benzene help Mike Hoyt used run its 67% 365% flammability limits has afuel consisting 4-1-1-1 mix methanolwider flammable range common fuelbenzene-nitromethane-propylene oxide beningredientsContinued page 181 DAVE rke et ROBELEN S 42 span 15- 25 engines Outstanding small field performance novice 8 expert alike om airfoils top perfotmance quality balsa plywood gned 3 channels Precision machine-cat balsa plywood Playmate 3 ch 50 sportfun fly 1 5-25 2 4 cycle fast assembly hand-cut Itit$4995 Pronto 50 span 1 5-25 2 4 cycle 3 ch. hand-cut kit easily converted tp elec excellent beginner also challenges expert $3995 Available dealer order dIrect Add 52 shipping additional $2 COD ASave COD send check money order TIDEWATER HOBBY ENTERPRISES 26 Sapphire Run Deala FL 32672 5 687-2160 904-245-4653 sheet aluminum about tAsin thick us probably have shop scrap box youre up making own quick look through almost hobby catalog will reveal bellcranks usually made nylon will fit mosi needs Youll find belicranks can used operations shown sketch B C well 600900 1200 versions ofBellcrank D generally used change angle pushrod travel little imagination ingenuity can make find bellcranks almost operation Club reports Jack Stolly Dallas TX informs us Dallas Model Aircraft Association CL club has made great membership come back during past five years now has over 40 members several Scale model ers Once again can report success obtaining good CL flying site city Dallas has provided club site contains two paved two grass circles addition site close proximity toilets phones water concessions particular interest Scale readers fact clubs scale activities ther increase CL Sport Scale event will included 1987 contests first contest will held Saturday Sunday June 20-21 second Southwesterns September 19-20 Both contests will Samuel Garland Park Northwest Highway Garlands Road Dallas TX informa tion contact Jack Stolly 11323 Cotillion Dallas TX 75228 Another major CL contest also being held September 19-20 1987 Raider Roundup 87The Washington State CL Championships Boeing Space Center Kent WA wll include Sport Profile Scale events full qontest details write Dave Mullens Skywriter Editor 15559 Palatine Ave N Seattle WA 98133 Scale Model Research has once agaln expanded its inventory Full Color Documentation Foto Paaks Koku-Fan three-views over 600 new additions now have available over 1400 Foto-Paaks 50000 photos inven tory 3 x 5 full-color photos show details landing gear instrumentation hinges flaps paint schemes markings Most Foto-Psaks have three-views available enable Scale modeler have complete documentation project single package new SMR listing Foto-Paaks threeview drawings send self-addressed envelope Scale Model Research 2334 Ticonderoga Costa Mesa CA 92626 Please send correspondenceand espe cially photosrelating CL Scale BillBoss 77-06 269th St New Hyde Park NY 11040 CL Speed/Hempel Continued page 74 zene generally increased laps required didnt want use benzene hard get generally considered carcinogenic wanted avoid nitro prop possible because cost availability remembered back Sixties benzene fuel choice engine/airplane combination would run straight benezene buming valves run 50/50 benzene white gas give up couple mph company working Say0 th8t tksiw14G Over 600 Items Send *200 current catalog benzene MEK methy ethyl ketone day noticed physical properties similar Idea Jet fuel tried it worked So try MEK sport fuel MEK available paint stores now lot things try gasoline kerosene Coleman fuel methanol MEK nitro methane propylene oxide maybe others Charlie came Houston twice loaded up right sidewinder airplanes test stand accessories dusted off old upright grabbed bunch accessories went Melrose Park day testing Wed mix batch fuel check out test stand find both right metering jet range metering jets suction feed pressurized feed found good fuel mix wed put test flight model suction tank model having pressurized tank cases engine stock Dyna-Jet head stock retainer tailpipe fuel tank pressurizing fitting silver-soldered place plugged piece fuel line use flow-jector used either stock gaso line -type fuels drilled out 0055 other fuels cant tell fuel mixes tried first session bunch two three worthy air test first session produced some bad news May1987 181 VINTAGE -C PLAN3 CONSOLIDATED ~PBY-5ACATALINA 9 FT WING SPAN AIL RIBS B PULL PORMERS SHOWN ON PLANS1 PLASrIC ENGCOWLS $1090 PR CLEAR GUN BLISTERS $ 760 PR 4 LARGE PLAN SHEETS s $ 1895 6FT WING SPAN MODEL PBY-5A ENGINE COWLS $750 PR Plans $1495 GUN BLISTERS $ 550 PR ADD $300 POSTAGE CATALOGOVER 50 PLANS $100 DEALERS WRITE WORLDWIDE SID MORGAN 13157 ORMOND BELLEVILLE MICH 48111 USA some kinda-good good news bad news cheap fuels gasoline -type did work satisfactorily both suction pressurized tank systemsjust expected kinda good news arrived good allaround sport fuel $13 per gallon wasnt exactly cheap mix 35% MEK 35% methanol 15% nitromethane 15% propylene oxide Nitro prop readily available Charlie kept touch over next few months continued discuss fuel situ ation meantime made few calculations fuel-mix flammability range decided methanol-MEK mix high percentage alcohol might give us fuel looking Charlie came back Houston about six months after first session set up shop again did take long before hit 80% methanol 20% MEK mix Much sur prise got 0010 range metering jets suction pressure tanks both upright sidewinder models engine runs steady strong cases now good sport fueland cost about $4 per gallon uprights slightly harder start sidewinders because longer vertical fuel draw anyone has built flown uprights familiar technique tilting plane make engine easier start accomplished nearly goals goal left unchecked effect weather have checked fuel under wide variety weather conditions Charlie did have some problems once Dallas didnt have time sort out As recall Charlie said thought humidity high 38 years flying Jets Ive encountered three four times high humidity apparently contributed hard-starting and/or flights lasting few laps anyone runs problem using 80/20 fuel Id suggest adding 10% propylene ox ide reducing MEK 10% 5% have yet test combinations have questions concerning Jet fuels please refer end Speed column Dimmitt s address next bit information concerns neat monoline torque control-unit Jeny Thomas quest design super monoline connection model decided should simple easy construct idea attaching primary flying line stationary point CG model should pass hefty pull tests Dale Kirn* has worked Jerry Thomas project several years feels better mousetrap Jet models constructed Jerry Dale utilizing system fly ex tremely well type system could also applied D Speed models Before mounting bracket anchored model necessary position com ponents such manner determine planes CG secure bracket permanently spot secondary line transfer rod inserted swing arm made 035-in-thick brass material swing arm al lows movement via pushrod elevator horn sure check height dimensions elevator horn critical good Up-Down movement drawings should clarify questions assembling bracket torque line Also would good idea check existing torque units models rust breaks before its too late Jerry also manufactures 080-in-thick Dyna Jet valve retainer allows valve contact retainer through its full range travel available Jerry $12 plus $150 postage handling addresses individuals contributed months Speed Column *Dimmitt Perkins 5619 Stillbrooke Houston TX 77096 *Jerry Thomas 1007 40th Ave NW Puyallup WA 98371 telephone number 206 845-1269 *Dale Kirn 283 N Spruce Dr Anaheim CA 92805 wish thank gentlemen support Speed Column Gene Hempel 301 N Yale Dr Garland iX 75042 CL Racing/Ballard Continued page 75 makes AAC request find engine turns approximately 800900 rpm same propeller good OS 35/ring Slow Rat engine starting capabilities engine well its durability seem excellent ran about 30 min two Slow Rats found its performance least equal 05 35 Unfortunately people have built planes fit OS K&B 35 will have make extensive modifications engine-mounting plate well locations mountingbolt holes Supertigre course heavier engine OS35 bolt-hole patterns two engines completely different cases would suggest building completely new front end existing modelor building totally new airplane utllize Nelson-modi fied Supertigre X35 As racing season unfolds year will keep informed performance custom-made ST X35 Slow Rat engines Pro-Grip control handle March column showed picture special handle time being used Combat circle Racing competitors showed interest heavy-duty unit did know name manufacturer may interested handle ProGrip Control Line handle produced Sagan Industries Inc 36-14 35th Street Long Island City NY 11016 can buy direct $1495 plus$375 shippingandhandiingorlam sure will available purchase local hobby shop As always comments photographs solicited appreciated John C Ballard 10102 Kimblewick Dr Louisville KY 40223 182 Model Aviation AVAILABLE AT AMERICAS FINEST HOBBY SHOPS DISTRIBUTED BY S SMIflflHI NUDE W*ZN8 7550 San Gaboel Road cadeo CA 534 1717 $425 ROUSH KITS TaylorCraft Full span 108 Area 1670 clipped 84 Area 1300 Power 75to1 2ca Balsa&Ply l0-l2lbs $9995 Super Sport 120 Span 73 Area 960 Powar 75 12 Cu $9996 Super Kwik Fli Span 70 Area 927 Power 75 12 cu $8995 Coming Soon Two neti everyday scale airplanes 80 AT-6 78 P-Si 75-120 engines Both $9996 Jr Sticks Span 72 Area 1060 Power 75to 12ca $5995 Direct Sales Only Prices Include Shipping Send $100 Catalog ROUSH MFG 1728 Dyweod St SE Coaton Ohio 44707 210464-0610
Edition: Model Aviation - 1987/05
Page Numbers: 74, 181, 182
Edition: Model Aviation - 1987/05
Page Numbers: 74, 181, 182
Control Line Speed Gene Hempel JETS AGAIN months column covers two excellent bits information concerning Jet mod els first letter Dimmitt Perkins* Houston TX explaining evolution sport Jet fuel came about latter article ex plains new torque unit designed Jerry Tho mas* Jet D Speed models Heres Dimmitt NASS North American Speed Societyed Banquet asked Charlie Davis came up sport Jet fuel con taining MEK methanol Heres story About year maybe year-and-a-half ago Charlie called ihe idea sport event Jet low-key event promote Jet models Youve run couple articles pro posed rules model plans got discussing fuels agreed several require ments 1 The fuel should easy-starting 2 It should have wide combustion range metering jets would critical also make possible operation pressurized fuel tank upright sidewinder model requirement would also reduce weather effects 3 It would cheap 4 The ingredients should easy obtain common Jet fuel ingredients gasoline certainly cheap flam mability range about 15% 75% volume air can critical respect metering jetsespecially run pressure Nitromethane L-41flt .sP .sa*aL / tAiM eo 040 doe 70 ..n .a/sa r .S4 000 adOAoS S000F0O Nsa I- ~1S 4I-/ 749 12 Li OSS 000 *542 AS0 Fe 004#*O0 49A14 Ji AZSV*70C SWi*M .0Oet frr/ 0057Z0 S00u i _7iI 40 -J 141000 AlMa cit 54 o-na Sn .0 ACJWAO cc 497 ne 420 7090 44f49 12 z4 095 ficOR p9oe5 SlOt VS. ffA7h f Aiwo XT*S0M Lesta iK parts Jerry Thomas one-line control unit Note drawn scaie Good 0 Speed too 74 Model Aviation Joe Kinna new asym metrical sidewinder Jet Speed modei uses Jerry Thomas-designed one-iine torque-operated controi unit Heres Jerry Thomsa new oontroi unit instaiis Jet Speed modei propylene oxide mixtures have good operatingBut methanol itself good Jet fuel characteristics definitely cheap Meth-It lacks range power Hydrocarbons like gaso anol relatively cheap easy obtain withline benzene help Mike Hoyt used run its 67% 365% flammability limits has afuel consisting 4-1-1-1 mix methanolwider flammable range common fuelbenzene-nitromethane-propylene oxide beningredientsContinued page 181 DAVE rke et ROBELEN S 42 span 15- 25 engines Outstanding small field performance novice 8 expert alike om airfoils top perfotmance quality balsa plywood gned 3 channels Precision machine-cat balsa plywood Playmate 3 ch 50 sportfun fly 1 5-25 2 4 cycle fast assembly hand-cut Itit$4995 Pronto 50 span 1 5-25 2 4 cycle 3 ch. hand-cut kit easily converted tp elec excellent beginner also challenges expert $3995 Available dealer order dIrect Add 52 shipping additional $2 COD ASave COD send check money order TIDEWATER HOBBY ENTERPRISES 26 Sapphire Run Deala FL 32672 5 687-2160 904-245-4653 sheet aluminum about tAsin thick us probably have shop scrap box youre up making own quick look through almost hobby catalog will reveal bellcranks usually made nylon will fit mosi needs Youll find belicranks can used operations shown sketch B C well 600900 1200 versions ofBellcrank D generally used change angle pushrod travel little imagination ingenuity can make find bellcranks almost operation Club reports Jack Stolly Dallas TX informs us Dallas Model Aircraft Association CL club has made great membership come back during past five years now has over 40 members several Scale model ers Once again can report success obtaining good CL flying site city Dallas has provided club site contains two paved two grass circles addition site close proximity toilets phones water concessions particular interest Scale readers fact clubs scale activities ther increase CL Sport Scale event will included 1987 contests first contest will held Saturday Sunday June 20-21 second Southwesterns September 19-20 Both contests will Samuel Garland Park Northwest Highway Garlands Road Dallas TX informa tion contact Jack Stolly 11323 Cotillion Dallas TX 75228 Another major CL contest also being held September 19-20 1987 Raider Roundup 87The Washington State CL Championships Boeing Space Center Kent WA wll include Sport Profile Scale events full qontest details write Dave Mullens Skywriter Editor 15559 Palatine Ave N Seattle WA 98133 Scale Model Research has once agaln expanded its inventory Full Color Documentation Foto Paaks Koku-Fan three-views over 600 new additions now have available over 1400 Foto-Paaks 50000 photos inven tory 3 x 5 full-color photos show details landing gear instrumentation hinges flaps paint schemes markings Most Foto-Psaks have three-views available enable Scale modeler have complete documentation project single package new SMR listing Foto-Paaks threeview drawings send self-addressed envelope Scale Model Research 2334 Ticonderoga Costa Mesa CA 92626 Please send correspondenceand espe cially photosrelating CL Scale BillBoss 77-06 269th St New Hyde Park NY 11040 CL Speed/Hempel Continued page 74 zene generally increased laps required didnt want use benzene hard get generally considered carcinogenic wanted avoid nitro prop possible because cost availability remembered back Sixties benzene fuel choice engine/airplane combination would run straight benezene buming valves run 50/50 benzene white gas give up couple mph company working Say0 th8t tksiw14G Over 600 Items Send *200 current catalog benzene MEK methy ethyl ketone day noticed physical properties similar Idea Jet fuel tried it worked So try MEK sport fuel MEK available paint stores now lot things try gasoline kerosene Coleman fuel methanol MEK nitro methane propylene oxide maybe others Charlie came Houston twice loaded up right sidewinder airplanes test stand accessories dusted off old upright grabbed bunch accessories went Melrose Park day testing Wed mix batch fuel check out test stand find both right metering jet range metering jets suction feed pressurized feed found good fuel mix wed put test flight model suction tank model having pressurized tank cases engine stock Dyna-Jet head stock retainer tailpipe fuel tank pressurizing fitting silver-soldered place plugged piece fuel line use flow-jector used either stock gaso line -type fuels drilled out 0055 other fuels cant tell fuel mixes tried first session bunch two three worthy air test first session produced some bad news May1987 181 VINTAGE -C PLAN3 CONSOLIDATED ~PBY-5ACATALINA 9 FT WING SPAN AIL RIBS B PULL PORMERS SHOWN ON PLANS1 PLASrIC ENGCOWLS $1090 PR CLEAR GUN BLISTERS $ 760 PR 4 LARGE PLAN SHEETS s $ 1895 6FT WING SPAN MODEL PBY-5A ENGINE COWLS $750 PR Plans $1495 GUN BLISTERS $ 550 PR ADD $300 POSTAGE CATALOGOVER 50 PLANS $100 DEALERS WRITE WORLDWIDE SID MORGAN 13157 ORMOND BELLEVILLE MICH 48111 USA some kinda-good good news bad news cheap fuels gasoline -type did work satisfactorily both suction pressurized tank systemsjust expected kinda good news arrived good allaround sport fuel $13 per gallon wasnt exactly cheap mix 35% MEK 35% methanol 15% nitromethane 15% propylene oxide Nitro prop readily available Charlie kept touch over next few months continued discuss fuel situ ation meantime made few calculations fuel-mix flammability range decided methanol-MEK mix high percentage alcohol might give us fuel looking Charlie came back Houston about six months after first session set up shop again did take long before hit 80% methanol 20% MEK mix Much sur prise got 0010 range metering jets suction pressure tanks both upright sidewinder models engine runs steady strong cases now good sport fueland cost about $4 per gallon uprights slightly harder start sidewinders because longer vertical fuel draw anyone has built flown uprights familiar technique tilting plane make engine easier start accomplished nearly goals goal left unchecked effect weather have checked fuel under wide variety weather conditions Charlie did have some problems once Dallas didnt have time sort out As recall Charlie said thought humidity high 38 years flying Jets Ive encountered three four times high humidity apparently contributed hard-starting and/or flights lasting few laps anyone runs problem using 80/20 fuel Id suggest adding 10% propylene ox ide reducing MEK 10% 5% have yet test combinations have questions concerning Jet fuels please refer end Speed column Dimmitt s address next bit information concerns neat monoline torque control-unit Jeny Thomas quest design super monoline connection model decided should simple easy construct idea attaching primary flying line stationary point CG model should pass hefty pull tests Dale Kirn* has worked Jerry Thomas project several years feels better mousetrap Jet models constructed Jerry Dale utilizing system fly ex tremely well type system could also applied D Speed models Before mounting bracket anchored model necessary position com ponents such manner determine planes CG secure bracket permanently spot secondary line transfer rod inserted swing arm made 035-in-thick brass material swing arm al lows movement via pushrod elevator horn sure check height dimensions elevator horn critical good Up-Down movement drawings should clarify questions assembling bracket torque line Also would good idea check existing torque units models rust breaks before its too late Jerry also manufactures 080-in-thick Dyna Jet valve retainer allows valve contact retainer through its full range travel available Jerry $12 plus $150 postage handling addresses individuals contributed months Speed Column *Dimmitt Perkins 5619 Stillbrooke Houston TX 77096 *Jerry Thomas 1007 40th Ave NW Puyallup WA 98371 telephone number 206 845-1269 *Dale Kirn 283 N Spruce Dr Anaheim CA 92805 wish thank gentlemen support Speed Column Gene Hempel 301 N Yale Dr Garland iX 75042 CL Racing/Ballard Continued page 75 makes AAC request find engine turns approximately 800900 rpm same propeller good OS 35/ring Slow Rat engine starting capabilities engine well its durability seem excellent ran about 30 min two Slow Rats found its performance least equal 05 35 Unfortunately people have built planes fit OS K&B 35 will have make extensive modifications engine-mounting plate well locations mountingbolt holes Supertigre course heavier engine OS35 bolt-hole patterns two engines completely different cases would suggest building completely new front end existing modelor building totally new airplane utllize Nelson-modi fied Supertigre X35 As racing season unfolds year will keep informed performance custom-made ST X35 Slow Rat engines Pro-Grip control handle March column showed picture special handle time being used Combat circle Racing competitors showed interest heavy-duty unit did know name manufacturer may interested handle ProGrip Control Line handle produced Sagan Industries Inc 36-14 35th Street Long Island City NY 11016 can buy direct $1495 plus$375 shippingandhandiingorlam sure will available purchase local hobby shop As always comments photographs solicited appreciated John C Ballard 10102 Kimblewick Dr Louisville KY 40223 182 Model Aviation AVAILABLE AT AMERICAS FINEST HOBBY SHOPS DISTRIBUTED BY S SMIflflHI NUDE W*ZN8 7550 San Gaboel Road cadeo CA 534 1717 $425 ROUSH KITS TaylorCraft Full span 108 Area 1670 clipped 84 Area 1300 Power 75to1 2ca Balsa&Ply l0-l2lbs $9995 Super Sport 120 Span 73 Area 960 Powar 75 12 Cu $9996 Super Kwik Fli Span 70 Area 927 Power 75 12 cu $8995 Coming Soon Two neti everyday scale airplanes 80 AT-6 78 P-Si 75-120 engines Both $9996 Jr Sticks Span 72 Area 1060 Power 75to 12ca $5995 Direct Sales Only Prices Include Shipping Send $100 Catalog ROUSH MFG 1728 Dyweod St SE Coaton Ohio 44707 210464-0610
Edition: Model Aviation - 1987/05
Page Numbers: 74, 181, 182
Control Line Speed Gene Hempel JETS AGAIN months column covers two excellent bits information concerning Jet mod els first letter Dimmitt Perkins* Houston TX explaining evolution sport Jet fuel came about latter article ex plains new torque unit designed Jerry Tho mas* Jet D Speed models Heres Dimmitt NASS North American Speed Societyed Banquet asked Charlie Davis came up sport Jet fuel con taining MEK methanol Heres story About year maybe year-and-a-half ago Charlie called ihe idea sport event Jet low-key event promote Jet models Youve run couple articles pro posed rules model plans got discussing fuels agreed several require ments 1 The fuel should easy-starting 2 It should have wide combustion range metering jets would critical also make possible operation pressurized fuel tank upright sidewinder model requirement would also reduce weather effects 3 It would cheap 4 The ingredients should easy obtain common Jet fuel ingredients gasoline certainly cheap flam mability range about 15% 75% volume air can critical respect metering jetsespecially run pressure Nitromethane L-41flt .sP .sa*aL / tAiM eo 040 doe 70 ..n .a/sa r .S4 000 adOAoS S000F0O Nsa I- ~1S 4I-/ 749 12 Li OSS 000 *542 AS0 Fe 004#*O0 49A14 Ji AZSV*70C SWi*M .0Oet frr/ 0057Z0 S00u i _7iI 40 -J 141000 AlMa cit 54 o-na Sn .0 ACJWAO cc 497 ne 420 7090 44f49 12 z4 095 ficOR p9oe5 SlOt VS. ffA7h f Aiwo XT*S0M Lesta iK parts Jerry Thomas one-line control unit Note drawn scaie Good 0 Speed too 74 Model Aviation Joe Kinna new asym metrical sidewinder Jet Speed modei uses Jerry Thomas-designed one-iine torque-operated controi unit Heres Jerry Thomsa new oontroi unit instaiis Jet Speed modei propylene oxide mixtures have good operatingBut methanol itself good Jet fuel characteristics definitely cheap Meth-It lacks range power Hydrocarbons like gaso anol relatively cheap easy obtain withline benzene help Mike Hoyt used run its 67% 365% flammability limits has afuel consisting 4-1-1-1 mix methanolwider flammable range common fuelbenzene-nitromethane-propylene oxide beningredientsContinued page 181 DAVE rke et ROBELEN S 42 span 15- 25 engines Outstanding small field performance novice 8 expert alike om airfoils top perfotmance quality balsa plywood gned 3 channels Precision machine-cat balsa plywood Playmate 3 ch 50 sportfun fly 1 5-25 2 4 cycle fast assembly hand-cut Itit$4995 Pronto 50 span 1 5-25 2 4 cycle 3 ch. hand-cut kit easily converted tp elec excellent beginner also challenges expert $3995 Available dealer order dIrect Add 52 shipping additional $2 COD ASave COD send check money order TIDEWATER HOBBY ENTERPRISES 26 Sapphire Run Deala FL 32672 5 687-2160 904-245-4653 sheet aluminum about tAsin thick us probably have shop scrap box youre up making own quick look through almost hobby catalog will reveal bellcranks usually made nylon will fit mosi needs Youll find belicranks can used operations shown sketch B C well 600900 1200 versions ofBellcrank D generally used change angle pushrod travel little imagination ingenuity can make find bellcranks almost operation Club reports Jack Stolly Dallas TX informs us Dallas Model Aircraft Association CL club has made great membership come back during past five years now has over 40 members several Scale model ers Once again can report success obtaining good CL flying site city Dallas has provided club site contains two paved two grass circles addition site close proximity toilets phones water concessions particular interest Scale readers fact clubs scale activities ther increase CL Sport Scale event will included 1987 contests first contest will held Saturday Sunday June 20-21 second Southwesterns September 19-20 Both contests will Samuel Garland Park Northwest Highway Garlands Road Dallas TX informa tion contact Jack Stolly 11323 Cotillion Dallas TX 75228 Another major CL contest also being held September 19-20 1987 Raider Roundup 87The Washington State CL Championships Boeing Space Center Kent WA wll include Sport Profile Scale events full qontest details write Dave Mullens Skywriter Editor 15559 Palatine Ave N Seattle WA 98133 Scale Model Research has once agaln expanded its inventory Full Color Documentation Foto Paaks Koku-Fan three-views over 600 new additions now have available over 1400 Foto-Paaks 50000 photos inven tory 3 x 5 full-color photos show details landing gear instrumentation hinges flaps paint schemes markings Most Foto-Psaks have three-views available enable Scale modeler have complete documentation project single package new SMR listing Foto-Paaks threeview drawings send self-addressed envelope Scale Model Research 2334 Ticonderoga Costa Mesa CA 92626 Please send correspondenceand espe cially photosrelating CL Scale BillBoss 77-06 269th St New Hyde Park NY 11040 CL Speed/Hempel Continued page 74 zene generally increased laps required didnt want use benzene hard get generally considered carcinogenic wanted avoid nitro prop possible because cost availability remembered back Sixties benzene fuel choice engine/airplane combination would run straight benezene buming valves run 50/50 benzene white gas give up couple mph company working Say0 th8t tksiw14G Over 600 Items Send *200 current catalog benzene MEK methy ethyl ketone day noticed physical properties similar Idea Jet fuel tried it worked So try MEK sport fuel MEK available paint stores now lot things try gasoline kerosene Coleman fuel methanol MEK nitro methane propylene oxide maybe others Charlie came Houston twice loaded up right sidewinder airplanes test stand accessories dusted off old upright grabbed bunch accessories went Melrose Park day testing Wed mix batch fuel check out test stand find both right metering jet range metering jets suction feed pressurized feed found good fuel mix wed put test flight model suction tank model having pressurized tank cases engine stock Dyna-Jet head stock retainer tailpipe fuel tank pressurizing fitting silver-soldered place plugged piece fuel line use flow-jector used either stock gaso line -type fuels drilled out 0055 other fuels cant tell fuel mixes tried first session bunch two three worthy air test first session produced some bad news May1987 181 VINTAGE -C PLAN3 CONSOLIDATED ~PBY-5ACATALINA 9 FT WING SPAN AIL RIBS B PULL PORMERS SHOWN ON PLANS1 PLASrIC ENGCOWLS $1090 PR CLEAR GUN BLISTERS $ 760 PR 4 LARGE PLAN SHEETS s $ 1895 6FT WING SPAN MODEL PBY-5A ENGINE COWLS $750 PR Plans $1495 GUN BLISTERS $ 550 PR ADD $300 POSTAGE CATALOGOVER 50 PLANS $100 DEALERS WRITE WORLDWIDE SID MORGAN 13157 ORMOND BELLEVILLE MICH 48111 USA some kinda-good good news bad news cheap fuels gasoline -type did work satisfactorily both suction pressurized tank systemsjust expected kinda good news arrived good allaround sport fuel $13 per gallon wasnt exactly cheap mix 35% MEK 35% methanol 15% nitromethane 15% propylene oxide Nitro prop readily available Charlie kept touch over next few months continued discuss fuel situ ation meantime made few calculations fuel-mix flammability range decided methanol-MEK mix high percentage alcohol might give us fuel looking Charlie came back Houston about six months after first session set up shop again did take long before hit 80% methanol 20% MEK mix Much sur prise got 0010 range metering jets suction pressure tanks both upright sidewinder models engine runs steady strong cases now good sport fueland cost about $4 per gallon uprights slightly harder start sidewinders because longer vertical fuel draw anyone has built flown uprights familiar technique tilting plane make engine easier start accomplished nearly goals goal left unchecked effect weather have checked fuel under wide variety weather conditions Charlie did have some problems once Dallas didnt have time sort out As recall Charlie said thought humidity high 38 years flying Jets Ive encountered three four times high humidity apparently contributed hard-starting and/or flights lasting few laps anyone runs problem using 80/20 fuel Id suggest adding 10% propylene ox ide reducing MEK 10% 5% have yet test combinations have questions concerning Jet fuels please refer end Speed column Dimmitt s address next bit information concerns neat monoline torque control-unit Jeny Thomas quest design super monoline connection model decided should simple easy construct idea attaching primary flying line stationary point CG model should pass hefty pull tests Dale Kirn* has worked Jerry Thomas project several years feels better mousetrap Jet models constructed Jerry Dale utilizing system fly ex tremely well type system could also applied D Speed models Before mounting bracket anchored model necessary position com ponents such manner determine planes CG secure bracket permanently spot secondary line transfer rod inserted swing arm made 035-in-thick brass material swing arm al lows movement via pushrod elevator horn sure check height dimensions elevator horn critical good Up-Down movement drawings should clarify questions assembling bracket torque line Also would good idea check existing torque units models rust breaks before its too late Jerry also manufactures 080-in-thick Dyna Jet valve retainer allows valve contact retainer through its full range travel available Jerry $12 plus $150 postage handling addresses individuals contributed months Speed Column *Dimmitt Perkins 5619 Stillbrooke Houston TX 77096 *Jerry Thomas 1007 40th Ave NW Puyallup WA 98371 telephone number 206 845-1269 *Dale Kirn 283 N Spruce Dr Anaheim CA 92805 wish thank gentlemen support Speed Column Gene Hempel 301 N Yale Dr Garland iX 75042 CL Racing/Ballard Continued page 75 makes AAC request find engine turns approximately 800900 rpm same propeller good OS 35/ring Slow Rat engine starting capabilities engine well its durability seem excellent ran about 30 min two Slow Rats found its performance least equal 05 35 Unfortunately people have built planes fit OS K&B 35 will have make extensive modifications engine-mounting plate well locations mountingbolt holes Supertigre course heavier engine OS35 bolt-hole patterns two engines completely different cases would suggest building completely new front end existing modelor building totally new airplane utllize Nelson-modi fied Supertigre X35 As racing season unfolds year will keep informed performance custom-made ST X35 Slow Rat engines Pro-Grip control handle March column showed picture special handle time being used Combat circle Racing competitors showed interest heavy-duty unit did know name manufacturer may interested handle ProGrip Control Line handle produced Sagan Industries Inc 36-14 35th Street Long Island City NY 11016 can buy direct $1495 plus$375 shippingandhandiingorlam sure will available purchase local hobby shop As always comments photographs solicited appreciated John C Ballard 10102 Kimblewick Dr Louisville KY 40223 182 Model Aviation AVAILABLE AT AMERICAS FINEST HOBBY SHOPS DISTRIBUTED BY S SMIflflHI NUDE W*ZN8 7550 San Gaboel Road cadeo CA 534 1717 $425 ROUSH KITS TaylorCraft Full span 108 Area 1670 clipped 84 Area 1300 Power 75to1 2ca Balsa&Ply l0-l2lbs $9995 Super Sport 120 Span 73 Area 960 Powar 75 12 Cu $9996 Super Kwik Fli Span 70 Area 927 Power 75 12 cu $8995 Coming Soon Two neti everyday scale airplanes 80 AT-6 78 P-Si 75-120 engines Both $9996 Jr Sticks Span 72 Area 1060 Power 75to 12ca $5995 Direct Sales Only Prices Include Shipping Send $100 Catalog ROUSH MFG 1728 Dyweod St SE Coaton Ohio 44707 210464-0610
