Don Jehlik tfIL1L ENGINE TESTS just small part overall picture serious power model er needs concerned about discussed column format MA suggested combine healthy dose information useful sport modeler some sophisticated information useful competitive modeler Its pos sible both purpose col umn will make power modeling enjoyable proficient purposes column power systems will defined being composed following sub-systems elements 1 Powerplant 2 Mounting 3 Fuel Supply 4 Fuels 5 Propellers 6 Operating envi ronment 7 Measurements 8 Personal skills Lets begin some basics installment see goes Rule 1 modelers must learn properly operate internal combustion engines test stand necessary because will become familiar operat ing characteristics engine yes engine really different b its necessary person concentrate specific skill order learn well Let digress minute because its very important Herb Stockton went 68 World Champs Herb ran #1 Bugl engine test stand basementrecorded rpm test prop duration run stopwatch put engine plane flew circles speed 97 mph laps 37 exactly predicted test-stand data did touch en gine compression needle valve packed models went Finland Malmi Airport test site put #1 up again Speed 98 laps 38 hadnt touched settings yet Two days later drew very first heat World Champs Now thats time nervous Herb both lot things to get ready fly heat critical thingadjust enginehad done Herbs test stand basement two weeks before setting produced fastest heat time WC placed us Finals Two weeks run air-conditioned base ment test flight 950 85% weather Fin land flights 750 40% weather same setting Thats test running impor tant Think about own experiences problems have running engines can practically eliminated acquiring what call personal skills sub-system #8 will describe future columns develop personal skills needed successfully run engines Heres list items will need order test stand running Test Stand E-Z Just Tatone Sullivan ad justable Just sure its sturdy mount Mount Stand Sturdy wooden box Continued page 92 December1977 51 Optional engine test equipment includes tachometer stopwatch depending upon eventual engine use notebook record results different tests must photo shows things needed test stand running Dont overlook ear protectors extreme left loud noises will result permanent hearing loss Test stand mounted 3-ft fnldina stAn ladder has advantaae easy store carry folded Several good test mounts available lasones engine esi unio wow le engine sizes 049 74 Comes tank tank bracket mounting screws KITS e PLANS ACCESSORIES 1417 ME 17W SPAN STOCK NO PP 15 KIT $425 4 WALNUT SCALE KITS RART ACE$425 PEANUT SCALE KITS J3 CUE$329 PIREENPOL$329 MILES$329 TURRULENT$329 MUSTANG$349 ZERO$349 COUGAR$349 AIIIDREASOId$349 GIPSY MOTH$349 GANAGORIE$349 SPORT MODEL KITS ONE NITE 28$475 ONE NITE 16$349 STRINGLESS WONDER$249 PEcK ROD$139 KITS 0 PLANS S ACCESSORIES REAL JAPANESE TISSUEPROPS COMPLETE CATALOG 50 MANY HARD TO FIND ITEMS pP 0 BOX 2498 -AMALA MESA CAUF 92041 WPHONE 7141 4694675 17141 4424636 weight except very light ones such letter comma space Look over various photos especially photos 15 16 youll see principles applied entire alpha bet numbers punctuation marks Youll see too space nothing two connector lines connector pole Making letter takes little time reading about making lots sounds tedious lay out Fig 1 pattern ten places sheet plywood can assembly-line project making several time simplicity drag shown photo 17 assembly methods same four fingers formed cut ting slits drag better job re ducing flutter solid piece fabric Incidentally Ive tried variety drag de signs including U-shaped type used real signs Although shown doesnt provide scale appearance does best job sure coat raw fabric edges thinned-out glue dont put bal ance weight drag towing bridle also shown photo 17 must rugged because takes full brunt towing load Use monofila ment bridle rather thread use heavier bamboo dowel about 3/32 diameter pole Tie monofil ament swivel-snap 2 di mension wont change tie end pole After can form connector loops about 1 hind pole Epoxy monofilament pole epoxy knots too Wrap 4 inches A-in solder around bottom pole balance weight get front sign trail verti cally rest sign inclined same Now letters numbers punctuation marks will need Heres easy way find own answer Plan first sign message youll want tow regularly Mine read JOIN THE PALM BEACH SKYHAWKS TODAY provides beginning letter inventory lets start fly ing soon possible invent new messages tow build addi tional characters need way can build inventory over long period time yet enjoy towing signs youre doing field kit photo 18 contains 106 characters has five commonly used letters fewer others expanding file shown provides handy storage keeps letters un wrinkled Come think have 107 last Santa-in-a-sleigh towed front Merry Christmas sign suggest keep written inventory characters have time plan message can check quickly see have enough As Ns Ts etc make plan sign find lack certain letters complete stop think slight rewording might put idea across letters have STATEMENT OF OWNERS*41P MANAGEMENT AND CIRCULATION Rrqojred 39 USC 3683 1 TeIeoIPc6lisssion MODELAVIATION A PaIIuetofl No. 067930 2 Date ol Filing Sepseonben 13 1577 3 Frequency 01 sue Monthly A No01 Sues Publtehed Annually 12 8 Annual Sattcnipnon Prico Sn20G 4 Location 01 known OlIton 01 putaication street city county stale ZIP code pnnnnrsl 815 FIteenttn Sn NW Weahiognon DC 2008h 5 Location headquarters aecerel business offices publishers Non printers 815 Fitneensh St. NW Weshinston DC 211015 6 Names connplens addrinses Publisher Editor Monesins Editor PutnlelnOr Gel S Whenlen 015 Fjtteanth Sn. NW Washinason DC 20605 Editor Wlliaen 3 Winner 8th Ftneennh Sn. NW Wsshington DC 20006 Managing Edsor NONE 7Owner Acscssecyol Model Aeronautios81h Fmfttenth Sn. NW Washington DC 206155 8Know bondltolders wor69gees Other tacOriny holders owning hold jog n% went total amount 01 bonds orornns Othpr securities NONE S For coenpienmon nonptotit organicotions authorized snail spocial rates Igoonror 132n22 PSMI Tbn purpose lunction end nonprolit status nhs orOenjeeton tuempn status Icr Foderal incowe too ponprees ham non changed during preceding 12 moonhe Ecoent cod Nalorr Cnculation nIl Actual Acerageno copies no copies01 tiOgir eachissueissue duriogoublished prenadingnearest l2nlectheillingdane ATotal No COpes Printed Net Press Ron3703530106 BPard Ciroulation 1 Sales lhruuoh Dealers end Carriers SIrens Veodurs end Counter Sales23742306 2Mail Subtonrytross2911732d1S CTotal Paid Circulanmoo31 49135211 0Frco Djsgnibullun Mel Carrier Other Meaos Samylns Complmennary Other Finn Copres360621 30 ETotal Distribution Suns C cod Dl3517737341 FCopies No Dtnributerl 1Oltise Usc LOttOmr Unacoocoted Seciled eltor Printing10691750 2Returns row New Agente UTotal Sum E Fl end 2should equal press run show Al3703h39106 11 I certify stagrorennO made abum ore correct complete CARL S WFIEE LET Publisher Big Day Arrives Okay now youre ready try signs first time some final thoughts remind ers get field youll find takes 15 minutes assemble full sign decide make up night before flying youll pleased learn complete sign folds neatly shoe box room left lunch sure keep signs dry make sure grass isnt damp lay out fabric would soak up moisture like blotter youd never get off ground Using item start lets make up checklist precautions first few flights 1 Keep signs dry 2 Before takeoff check sign sure connectors secure wind flips sign about check again 3 Do test flying easy stages first word two 4 Keep spectators off side make pass drophook trail ing 5 Make sign lift-offs wind make normal climb-outs 6 During lift-off keep eyes tention plane Dont worry about signit will follow along has no other choice 7 Be prepared drop sign en gine falters especially during lift-off climb-out 8 Maintain performance safety factor never towing sign long cant climb plane altitude 9 Abide field safety rules usual Youll tempted tow sign right over crowd dont End Well thats build em thats tow em hope readers will try because its chal lenging yet useful project Also might want look prospects making club project parcel out work making kit letters qualif several planes pilots towing So last 33 letters Ill close saying TRY TOWING YOUR OWN SIGNSITSALOTTA FUN Lets see now takes 5 Ts 2 Rs 2 Ys 4 0s tographs article made Lee Boozer Jimmy Zeak Chuck Stevens Emilic Fuente Bill Layers members Palm Beach Sky hawks Engine Technique/Jehlik continued page 51 surplus metal ammo box about 14 X 18 X 20 can store running equipment box Tank I prefer round RC klunk tank mounted auto hose clamp screwed top box Tank filler Anything squeeze bulb 92 Model Aviation FLY wITM R95511 eWUR 69tet 0 WALNUT SCALE ASK POE OUR KITS AND ACCESSORIES Al YOUR LOCAL DEALER IF NOT AVAILARLE AT YOUR DEALER ORDER DIRECT ADD 60 POSTAGE BROWN CO-2 ENGINES ENGINES ARE IN STOCK NEW CHARGER AND S SIZES OF TANKS RROWN ENGINES MUST RE ORDERED DIRECT FROM PECK-POLYMERS 5MUF- L- IT SERIES NEW PRODUCTS /A PISTON SETTING TOOL MUST FOR 4693 25EVERY _CLUB PA MUFFLER/8111 CAR MUFFLER K B 21 QT 15500 Mufflers 149for II E3I0 PIPECALUMET SERIES DIQIZOO SCALE INSTRUMENT KITS 2/45/26 IMERS 7/26 1/2FUEL CUT OFF 1150 ALL SIZES 279DETHERMALIZER 1150 THE WORLDS LARGEST LINE OF MUFFLERS AND ENGINE electric pump Ear Protectors must wear ear pro tectors Whether muff plug type Per manent hearing loss will result use Engine The intend run Props As recommended manufacturer Plugs A good idea have two brands same type recommended manu facturer Tools Enough tighten engine mount change prop plug plus correct tools dismantle engine Fuel As recommended manufacturer Battery To fire glow plug Lots clean rags wipe clean Notebook keep records engine per formance Optional Equipment Tachometer Mechanical optical Stopwatch time duration runs using small volume tank Electric Starter use bushing engines Examine flying equipment put together special test stand set up de scribed above next column will de scribe prepare new engine test running following column will take out run engine develop some really important skills Don Jehilk 438A Schweer Dr Star Route Hawthorne NV 89415 FF Duration/Meuser continued page 53 About Rules Rules never foolproof always loopholes simply because no rules-makers crystal ball good So what loophole found changes character event originally intended change rules Sometimes dozens examples few come mind original rules Indoor Paper Stick inadvertently per mitted use microfilm covered prop got fixed Drop gliderssmall micro film-covered gliders held over head dropped thermal rising section floor heated sun lightwere ruled out Indoor HL Glider events Vertical takeoff hydro models eliminated rules change such changes often best interests sport whole someone suffers National records made under old rules go down crack does development models fit loopholes old rules have made several ruleschange proposals currently being weighed FF Contest Board will cause some suffering passed CB members will have decide whether suffering few compensated benefit decisions Im sure will come easily So already have heard proposal re-rig rules such way dynamic soaring sort utilized Stan Stoys Indoor HL Glider record breaker will legal such change rules would wipe Stoys record books render impotent development skills utilize dynamic soaring advantage such changes would seem best interest sport Perhaps should mention pro posal re-rig rules prohibit dy namic soaring came Stan Stoy rules-change proposal once made cluded provision permanent national records established records dropped books result rules change publication list such permanent records few years sothat accomplishments would forgotten Contest Board rep resentatives threw out proposal hard bounced Well cant win em Outstanding Performances Outstanding record-breaking performances sure youll never see AMA National Records list Fifth Max-Men FAI Annual Bob White put up 14 consecutive maxes Wakefield event nosing out Bill Bogarts record two-day affair qualify national record flights must made same day Lee Hines did same Nordic glider event fourth anDecember 1977 93
Edition: Model Aviation - 1977/12
Page Numbers: 51, 92, 93
Don Jehlik tfIL1L ENGINE TESTS just small part overall picture serious power model er needs concerned about discussed column format MA suggested combine healthy dose information useful sport modeler some sophisticated information useful competitive modeler Its pos sible both purpose col umn will make power modeling enjoyable proficient purposes column power systems will defined being composed following sub-systems elements 1 Powerplant 2 Mounting 3 Fuel Supply 4 Fuels 5 Propellers 6 Operating envi ronment 7 Measurements 8 Personal skills Lets begin some basics installment see goes Rule 1 modelers must learn properly operate internal combustion engines test stand necessary because will become familiar operat ing characteristics engine yes engine really different b its necessary person concentrate specific skill order learn well Let digress minute because its very important Herb Stockton went 68 World Champs Herb ran #1 Bugl engine test stand basementrecorded rpm test prop duration run stopwatch put engine plane flew circles speed 97 mph laps 37 exactly predicted test-stand data did touch en gine compression needle valve packed models went Finland Malmi Airport test site put #1 up again Speed 98 laps 38 hadnt touched settings yet Two days later drew very first heat World Champs Now thats time nervous Herb both lot things to get ready fly heat critical thingadjust enginehad done Herbs test stand basement two weeks before setting produced fastest heat time WC placed us Finals Two weeks run air-conditioned base ment test flight 950 85% weather Fin land flights 750 40% weather same setting Thats test running impor tant Think about own experiences problems have running engines can practically eliminated acquiring what call personal skills sub-system #8 will describe future columns develop personal skills needed successfully run engines Heres list items will need order test stand running Test Stand E-Z Just Tatone Sullivan ad justable Just sure its sturdy mount Mount Stand Sturdy wooden box Continued page 92 December1977 51 Optional engine test equipment includes tachometer stopwatch depending upon eventual engine use notebook record results different tests must photo shows things needed test stand running Dont overlook ear protectors extreme left loud noises will result permanent hearing loss Test stand mounted 3-ft fnldina stAn ladder has advantaae easy store carry folded Several good test mounts available lasones engine esi unio wow le engine sizes 049 74 Comes tank tank bracket mounting screws KITS e PLANS ACCESSORIES 1417 ME 17W SPAN STOCK NO PP 15 KIT $425 4 WALNUT SCALE KITS RART ACE$425 PEANUT SCALE KITS J3 CUE$329 PIREENPOL$329 MILES$329 TURRULENT$329 MUSTANG$349 ZERO$349 COUGAR$349 AIIIDREASOId$349 GIPSY MOTH$349 GANAGORIE$349 SPORT MODEL KITS ONE NITE 28$475 ONE NITE 16$349 STRINGLESS WONDER$249 PEcK ROD$139 KITS 0 PLANS S ACCESSORIES REAL JAPANESE TISSUEPROPS COMPLETE CATALOG 50 MANY HARD TO FIND ITEMS pP 0 BOX 2498 -AMALA MESA CAUF 92041 WPHONE 7141 4694675 17141 4424636 weight except very light ones such letter comma space Look over various photos especially photos 15 16 youll see principles applied entire alpha bet numbers punctuation marks Youll see too space nothing two connector lines connector pole Making letter takes little time reading about making lots sounds tedious lay out Fig 1 pattern ten places sheet plywood can assembly-line project making several time simplicity drag shown photo 17 assembly methods same four fingers formed cut ting slits drag better job re ducing flutter solid piece fabric Incidentally Ive tried variety drag de signs including U-shaped type used real signs Although shown doesnt provide scale appearance does best job sure coat raw fabric edges thinned-out glue dont put bal ance weight drag towing bridle also shown photo 17 must rugged because takes full brunt towing load Use monofila ment bridle rather thread use heavier bamboo dowel about 3/32 diameter pole Tie monofil ament swivel-snap 2 di mension wont change tie end pole After can form connector loops about 1 hind pole Epoxy monofilament pole epoxy knots too Wrap 4 inches A-in solder around bottom pole balance weight get front sign trail verti cally rest sign inclined same Now letters numbers punctuation marks will need Heres easy way find own answer Plan first sign message youll want tow regularly Mine read JOIN THE PALM BEACH SKYHAWKS TODAY provides beginning letter inventory lets start fly ing soon possible invent new messages tow build addi tional characters need way can build inventory over long period time yet enjoy towing signs youre doing field kit photo 18 contains 106 characters has five commonly used letters fewer others expanding file shown provides handy storage keeps letters un wrinkled Come think have 107 last Santa-in-a-sleigh towed front Merry Christmas sign suggest keep written inventory characters have time plan message can check quickly see have enough As Ns Ts etc make plan sign find lack certain letters complete stop think slight rewording might put idea across letters have STATEMENT OF OWNERS*41P MANAGEMENT AND CIRCULATION Rrqojred 39 USC 3683 1 TeIeoIPc6lisssion MODELAVIATION A PaIIuetofl No. 067930 2 Date ol Filing Sepseonben 13 1577 3 Frequency 01 sue Monthly A No01 Sues Publtehed Annually 12 8 Annual Sattcnipnon Prico Sn20G 4 Location 01 known OlIton 01 putaication street city county stale ZIP code pnnnnrsl 815 FIteenttn Sn NW Weahiognon DC 2008h 5 Location headquarters aecerel business offices publishers Non printers 815 Fitneensh St. NW Weshinston DC 211015 6 Names connplens addrinses Publisher Editor Monesins Editor PutnlelnOr Gel S Whenlen 015 Fjtteanth Sn. NW Washinason DC 20605 Editor Wlliaen 3 Winner 8th Ftneennh Sn. NW Wsshington DC 20006 Managing Edsor NONE 7Owner Acscssecyol Model Aeronautios81h Fmfttenth Sn. NW Washington DC 206155 8Know bondltolders wor69gees Other tacOriny holders owning hold jog n% went total amount 01 bonds orornns Othpr securities NONE S For coenpienmon nonptotit organicotions authorized snail spocial rates Igoonror 132n22 PSMI Tbn purpose lunction end nonprolit status nhs orOenjeeton tuempn status Icr Foderal incowe too ponprees ham non changed during preceding 12 moonhe Ecoent cod Nalorr Cnculation nIl Actual Acerageno copies no copies01 tiOgir eachissueissue duriogoublished prenadingnearest l2nlectheillingdane ATotal No COpes Printed Net Press Ron3703530106 BPard Ciroulation 1 Sales lhruuoh Dealers end Carriers SIrens Veodurs end Counter Sales23742306 2Mail Subtonrytross2911732d1S CTotal Paid Circulanmoo31 49135211 0Frco Djsgnibullun Mel Carrier Other Meaos Samylns Complmennary Other Finn Copres360621 30 ETotal Distribution Suns C cod Dl3517737341 FCopies No Dtnributerl 1Oltise Usc LOttOmr Unacoocoted Seciled eltor Printing10691750 2Returns row New Agente UTotal Sum E Fl end 2should equal press run show Al3703h39106 11 I certify stagrorennO made abum ore correct complete CARL S WFIEE LET Publisher Big Day Arrives Okay now youre ready try signs first time some final thoughts remind ers get field youll find takes 15 minutes assemble full sign decide make up night before flying youll pleased learn complete sign folds neatly shoe box room left lunch sure keep signs dry make sure grass isnt damp lay out fabric would soak up moisture like blotter youd never get off ground Using item start lets make up checklist precautions first few flights 1 Keep signs dry 2 Before takeoff check sign sure connectors secure wind flips sign about check again 3 Do test flying easy stages first word two 4 Keep spectators off side make pass drophook trail ing 5 Make sign lift-offs wind make normal climb-outs 6 During lift-off keep eyes tention plane Dont worry about signit will follow along has no other choice 7 Be prepared drop sign en gine falters especially during lift-off climb-out 8 Maintain performance safety factor never towing sign long cant climb plane altitude 9 Abide field safety rules usual Youll tempted tow sign right over crowd dont End Well thats build em thats tow em hope readers will try because its chal lenging yet useful project Also might want look prospects making club project parcel out work making kit letters qualif several planes pilots towing So last 33 letters Ill close saying TRY TOWING YOUR OWN SIGNSITSALOTTA FUN Lets see now takes 5 Ts 2 Rs 2 Ys 4 0s tographs article made Lee Boozer Jimmy Zeak Chuck Stevens Emilic Fuente Bill Layers members Palm Beach Sky hawks Engine Technique/Jehlik continued page 51 surplus metal ammo box about 14 X 18 X 20 can store running equipment box Tank I prefer round RC klunk tank mounted auto hose clamp screwed top box Tank filler Anything squeeze bulb 92 Model Aviation FLY wITM R95511 eWUR 69tet 0 WALNUT SCALE ASK POE OUR KITS AND ACCESSORIES Al YOUR LOCAL DEALER IF NOT AVAILARLE AT YOUR DEALER ORDER DIRECT ADD 60 POSTAGE BROWN CO-2 ENGINES ENGINES ARE IN STOCK NEW CHARGER AND S SIZES OF TANKS RROWN ENGINES MUST RE ORDERED DIRECT FROM PECK-POLYMERS 5MUF- L- IT SERIES NEW PRODUCTS /A PISTON SETTING TOOL MUST FOR 4693 25EVERY _CLUB PA MUFFLER/8111 CAR MUFFLER K B 21 QT 15500 Mufflers 149for II E3I0 PIPECALUMET SERIES DIQIZOO SCALE INSTRUMENT KITS 2/45/26 IMERS 7/26 1/2FUEL CUT OFF 1150 ALL SIZES 279DETHERMALIZER 1150 THE WORLDS LARGEST LINE OF MUFFLERS AND ENGINE electric pump Ear Protectors must wear ear pro tectors Whether muff plug type Per manent hearing loss will result use Engine The intend run Props As recommended manufacturer Plugs A good idea have two brands same type recommended manu facturer Tools Enough tighten engine mount change prop plug plus correct tools dismantle engine Fuel As recommended manufacturer Battery To fire glow plug Lots clean rags wipe clean Notebook keep records engine per formance Optional Equipment Tachometer Mechanical optical Stopwatch time duration runs using small volume tank Electric Starter use bushing engines Examine flying equipment put together special test stand set up de scribed above next column will de scribe prepare new engine test running following column will take out run engine develop some really important skills Don Jehilk 438A Schweer Dr Star Route Hawthorne NV 89415 FF Duration/Meuser continued page 53 About Rules Rules never foolproof always loopholes simply because no rules-makers crystal ball good So what loophole found changes character event originally intended change rules Sometimes dozens examples few come mind original rules Indoor Paper Stick inadvertently per mitted use microfilm covered prop got fixed Drop gliderssmall micro film-covered gliders held over head dropped thermal rising section floor heated sun lightwere ruled out Indoor HL Glider events Vertical takeoff hydro models eliminated rules change such changes often best interests sport whole someone suffers National records made under old rules go down crack does development models fit loopholes old rules have made several ruleschange proposals currently being weighed FF Contest Board will cause some suffering passed CB members will have decide whether suffering few compensated benefit decisions Im sure will come easily So already have heard proposal re-rig rules such way dynamic soaring sort utilized Stan Stoys Indoor HL Glider record breaker will legal such change rules would wipe Stoys record books render impotent development skills utilize dynamic soaring advantage such changes would seem best interest sport Perhaps should mention pro posal re-rig rules prohibit dy namic soaring came Stan Stoy rules-change proposal once made cluded provision permanent national records established records dropped books result rules change publication list such permanent records few years sothat accomplishments would forgotten Contest Board rep resentatives threw out proposal hard bounced Well cant win em Outstanding Performances Outstanding record-breaking performances sure youll never see AMA National Records list Fifth Max-Men FAI Annual Bob White put up 14 consecutive maxes Wakefield event nosing out Bill Bogarts record two-day affair qualify national record flights must made same day Lee Hines did same Nordic glider event fourth anDecember 1977 93
Edition: Model Aviation - 1977/12
Page Numbers: 51, 92, 93
Don Jehlik tfIL1L ENGINE TESTS just small part overall picture serious power model er needs concerned about discussed column format MA suggested combine healthy dose information useful sport modeler some sophisticated information useful competitive modeler Its pos sible both purpose col umn will make power modeling enjoyable proficient purposes column power systems will defined being composed following sub-systems elements 1 Powerplant 2 Mounting 3 Fuel Supply 4 Fuels 5 Propellers 6 Operating envi ronment 7 Measurements 8 Personal skills Lets begin some basics installment see goes Rule 1 modelers must learn properly operate internal combustion engines test stand necessary because will become familiar operat ing characteristics engine yes engine really different b its necessary person concentrate specific skill order learn well Let digress minute because its very important Herb Stockton went 68 World Champs Herb ran #1 Bugl engine test stand basementrecorded rpm test prop duration run stopwatch put engine plane flew circles speed 97 mph laps 37 exactly predicted test-stand data did touch en gine compression needle valve packed models went Finland Malmi Airport test site put #1 up again Speed 98 laps 38 hadnt touched settings yet Two days later drew very first heat World Champs Now thats time nervous Herb both lot things to get ready fly heat critical thingadjust enginehad done Herbs test stand basement two weeks before setting produced fastest heat time WC placed us Finals Two weeks run air-conditioned base ment test flight 950 85% weather Fin land flights 750 40% weather same setting Thats test running impor tant Think about own experiences problems have running engines can practically eliminated acquiring what call personal skills sub-system #8 will describe future columns develop personal skills needed successfully run engines Heres list items will need order test stand running Test Stand E-Z Just Tatone Sullivan ad justable Just sure its sturdy mount Mount Stand Sturdy wooden box Continued page 92 December1977 51 Optional engine test equipment includes tachometer stopwatch depending upon eventual engine use notebook record results different tests must photo shows things needed test stand running Dont overlook ear protectors extreme left loud noises will result permanent hearing loss Test stand mounted 3-ft fnldina stAn ladder has advantaae easy store carry folded Several good test mounts available lasones engine esi unio wow le engine sizes 049 74 Comes tank tank bracket mounting screws KITS e PLANS ACCESSORIES 1417 ME 17W SPAN STOCK NO PP 15 KIT $425 4 WALNUT SCALE KITS RART ACE$425 PEANUT SCALE KITS J3 CUE$329 PIREENPOL$329 MILES$329 TURRULENT$329 MUSTANG$349 ZERO$349 COUGAR$349 AIIIDREASOId$349 GIPSY MOTH$349 GANAGORIE$349 SPORT MODEL KITS ONE NITE 28$475 ONE NITE 16$349 STRINGLESS WONDER$249 PEcK ROD$139 KITS 0 PLANS S ACCESSORIES REAL JAPANESE TISSUEPROPS COMPLETE CATALOG 50 MANY HARD TO FIND ITEMS pP 0 BOX 2498 -AMALA MESA CAUF 92041 WPHONE 7141 4694675 17141 4424636 weight except very light ones such letter comma space Look over various photos especially photos 15 16 youll see principles applied entire alpha bet numbers punctuation marks Youll see too space nothing two connector lines connector pole Making letter takes little time reading about making lots sounds tedious lay out Fig 1 pattern ten places sheet plywood can assembly-line project making several time simplicity drag shown photo 17 assembly methods same four fingers formed cut ting slits drag better job re ducing flutter solid piece fabric Incidentally Ive tried variety drag de signs including U-shaped type used real signs Although shown doesnt provide scale appearance does best job sure coat raw fabric edges thinned-out glue dont put bal ance weight drag towing bridle also shown photo 17 must rugged because takes full brunt towing load Use monofila ment bridle rather thread use heavier bamboo dowel about 3/32 diameter pole Tie monofil ament swivel-snap 2 di mension wont change tie end pole After can form connector loops about 1 hind pole Epoxy monofilament pole epoxy knots too Wrap 4 inches A-in solder around bottom pole balance weight get front sign trail verti cally rest sign inclined same Now letters numbers punctuation marks will need Heres easy way find own answer Plan first sign message youll want tow regularly Mine read JOIN THE PALM BEACH SKYHAWKS TODAY provides beginning letter inventory lets start fly ing soon possible invent new messages tow build addi tional characters need way can build inventory over long period time yet enjoy towing signs youre doing field kit photo 18 contains 106 characters has five commonly used letters fewer others expanding file shown provides handy storage keeps letters un wrinkled Come think have 107 last Santa-in-a-sleigh towed front Merry Christmas sign suggest keep written inventory characters have time plan message can check quickly see have enough As Ns Ts etc make plan sign find lack certain letters complete stop think slight rewording might put idea across letters have STATEMENT OF OWNERS*41P MANAGEMENT AND CIRCULATION Rrqojred 39 USC 3683 1 TeIeoIPc6lisssion MODELAVIATION A PaIIuetofl No. 067930 2 Date ol Filing Sepseonben 13 1577 3 Frequency 01 sue Monthly A No01 Sues Publtehed Annually 12 8 Annual Sattcnipnon Prico Sn20G 4 Location 01 known OlIton 01 putaication street city county stale ZIP code pnnnnrsl 815 FIteenttn Sn NW Weahiognon DC 2008h 5 Location headquarters aecerel business offices publishers Non printers 815 Fitneensh St. NW Weshinston DC 211015 6 Names connplens addrinses Publisher Editor Monesins Editor PutnlelnOr Gel S Whenlen 015 Fjtteanth Sn. NW Washinason DC 20605 Editor Wlliaen 3 Winner 8th Ftneennh Sn. NW Wsshington DC 20006 Managing Edsor NONE 7Owner Acscssecyol Model Aeronautios81h Fmfttenth Sn. NW Washington DC 206155 8Know bondltolders wor69gees Other tacOriny holders owning hold jog n% went total amount 01 bonds orornns Othpr securities NONE S For coenpienmon nonptotit organicotions authorized snail spocial rates Igoonror 132n22 PSMI Tbn purpose lunction end nonprolit status nhs orOenjeeton tuempn status Icr Foderal incowe too ponprees ham non changed during preceding 12 moonhe Ecoent cod Nalorr Cnculation nIl Actual Acerageno copies no copies01 tiOgir eachissueissue duriogoublished prenadingnearest l2nlectheillingdane ATotal No COpes Printed Net Press Ron3703530106 BPard Ciroulation 1 Sales lhruuoh Dealers end Carriers SIrens Veodurs end Counter Sales23742306 2Mail Subtonrytross2911732d1S CTotal Paid Circulanmoo31 49135211 0Frco Djsgnibullun Mel Carrier Other Meaos Samylns Complmennary Other Finn Copres360621 30 ETotal Distribution Suns C cod Dl3517737341 FCopies No Dtnributerl 1Oltise Usc LOttOmr Unacoocoted Seciled eltor Printing10691750 2Returns row New Agente UTotal Sum E Fl end 2should equal press run show Al3703h39106 11 I certify stagrorennO made abum ore correct complete CARL S WFIEE LET Publisher Big Day Arrives Okay now youre ready try signs first time some final thoughts remind ers get field youll find takes 15 minutes assemble full sign decide make up night before flying youll pleased learn complete sign folds neatly shoe box room left lunch sure keep signs dry make sure grass isnt damp lay out fabric would soak up moisture like blotter youd never get off ground Using item start lets make up checklist precautions first few flights 1 Keep signs dry 2 Before takeoff check sign sure connectors secure wind flips sign about check again 3 Do test flying easy stages first word two 4 Keep spectators off side make pass drophook trail ing 5 Make sign lift-offs wind make normal climb-outs 6 During lift-off keep eyes tention plane Dont worry about signit will follow along has no other choice 7 Be prepared drop sign en gine falters especially during lift-off climb-out 8 Maintain performance safety factor never towing sign long cant climb plane altitude 9 Abide field safety rules usual Youll tempted tow sign right over crowd dont End Well thats build em thats tow em hope readers will try because its chal lenging yet useful project Also might want look prospects making club project parcel out work making kit letters qualif several planes pilots towing So last 33 letters Ill close saying TRY TOWING YOUR OWN SIGNSITSALOTTA FUN Lets see now takes 5 Ts 2 Rs 2 Ys 4 0s tographs article made Lee Boozer Jimmy Zeak Chuck Stevens Emilic Fuente Bill Layers members Palm Beach Sky hawks Engine Technique/Jehlik continued page 51 surplus metal ammo box about 14 X 18 X 20 can store running equipment box Tank I prefer round RC klunk tank mounted auto hose clamp screwed top box Tank filler Anything squeeze bulb 92 Model Aviation FLY wITM R95511 eWUR 69tet 0 WALNUT SCALE ASK POE OUR KITS AND ACCESSORIES Al YOUR LOCAL DEALER IF NOT AVAILARLE AT YOUR DEALER ORDER DIRECT ADD 60 POSTAGE BROWN CO-2 ENGINES ENGINES ARE IN STOCK NEW CHARGER AND S SIZES OF TANKS RROWN ENGINES MUST RE ORDERED DIRECT FROM PECK-POLYMERS 5MUF- L- IT SERIES NEW PRODUCTS /A PISTON SETTING TOOL MUST FOR 4693 25EVERY _CLUB PA MUFFLER/8111 CAR MUFFLER K B 21 QT 15500 Mufflers 149for II E3I0 PIPECALUMET SERIES DIQIZOO SCALE INSTRUMENT KITS 2/45/26 IMERS 7/26 1/2FUEL CUT OFF 1150 ALL SIZES 279DETHERMALIZER 1150 THE WORLDS LARGEST LINE OF MUFFLERS AND ENGINE electric pump Ear Protectors must wear ear pro tectors Whether muff plug type Per manent hearing loss will result use Engine The intend run Props As recommended manufacturer Plugs A good idea have two brands same type recommended manu facturer Tools Enough tighten engine mount change prop plug plus correct tools dismantle engine Fuel As recommended manufacturer Battery To fire glow plug Lots clean rags wipe clean Notebook keep records engine per formance Optional Equipment Tachometer Mechanical optical Stopwatch time duration runs using small volume tank Electric Starter use bushing engines Examine flying equipment put together special test stand set up de scribed above next column will de scribe prepare new engine test running following column will take out run engine develop some really important skills Don Jehilk 438A Schweer Dr Star Route Hawthorne NV 89415 FF Duration/Meuser continued page 53 About Rules Rules never foolproof always loopholes simply because no rules-makers crystal ball good So what loophole found changes character event originally intended change rules Sometimes dozens examples few come mind original rules Indoor Paper Stick inadvertently per mitted use microfilm covered prop got fixed Drop gliderssmall micro film-covered gliders held over head dropped thermal rising section floor heated sun lightwere ruled out Indoor HL Glider events Vertical takeoff hydro models eliminated rules change such changes often best interests sport whole someone suffers National records made under old rules go down crack does development models fit loopholes old rules have made several ruleschange proposals currently being weighed FF Contest Board will cause some suffering passed CB members will have decide whether suffering few compensated benefit decisions Im sure will come easily So already have heard proposal re-rig rules such way dynamic soaring sort utilized Stan Stoys Indoor HL Glider record breaker will legal such change rules would wipe Stoys record books render impotent development skills utilize dynamic soaring advantage such changes would seem best interest sport Perhaps should mention pro posal re-rig rules prohibit dy namic soaring came Stan Stoy rules-change proposal once made cluded provision permanent national records established records dropped books result rules change publication list such permanent records few years sothat accomplishments would forgotten Contest Board rep resentatives threw out proposal hard bounced Well cant win em Outstanding Performances Outstanding record-breaking performances sure youll never see AMA National Records list Fifth Max-Men FAI Annual Bob White put up 14 consecutive maxes Wakefield event nosing out Bill Bogarts record two-day affair qualify national record flights must made same day Lee Hines did same Nordic glider event fourth anDecember 1977 93