Radio Control Sport Aerobatics Ron Van Putte FEW DAYS ago got telephone call Bob Pinkus Dayton OH wanted talk about use aerosol after-run oil mentioned previous columns like use because engine runs dis tributes oil throughout its parts said didnt understand its use wouldnt also cause corrosion because chemi cal by-products combustion water set back didnt have answer him except say hadnt experienced bearing corrosion since start ing use aerosol after-run oil moisture displacement lubricant Two days later struck mewhen burn after-run oil exhaust never gets bearings part burns exhausted engine Its lubricant thats crankcase gets distributed bearings works offered tell people what radio using Nats shot down alleged interference expected strong response So warned postman put request larger vehicle neces sary too Ive getting writers cramp answering mail Most people glad hear because wasnt using brand radio own few got bad news However though some people got bad news need understand cir cumstances shot down probably hap pen very infrequently flying radio some pretty nasty places two years before being shot down 1985 Nats two situations hadnt encountered before fly ing 1985 Nats 1983 Nats 1984 Nats Id never flown FM-transmittercontrolled airplane front AM transmitters 1000 away kind situation rare ly occurs flying sites happens quite often Nats hope ways avoid being shot down using FM transmitter future Nats course way own PCM FM transmitterand now However people own conven tional FM transmitters hope understand RC electronics can come up field layout and/or flying pro cedures will preclude having others go through what three us suffered Channel 40 FM 1985 Nats George Myers Radio Technique column January 1986 issue went type problem shot down may little heavy going some fliers its well worth reading information February 1986 column too Ive also gotten lot letters about discontinuance Sears Filled Epoxy commiserated few liked C uJ uJ -J THE BOX LINE JUDGE 35am 6Oo6Oo PILOT/JUDGES Ci u-I u-I z LINE JUDGE B Check out Jim Ewings Charlottestown PEI Canada suggestion enforcing Turnaround box Details about thisand moreare column searched forand founda suitable substi tute Ron Clem San Diego CA wrote found out about product called JB Weld PO Box 483 Sulphur Springs TX 75482 bought some Well names changed believe product same has same consistency color pot life etc its available through Pep Boys auto parts stores probably other auto parts stores well Eldon Wilson San Angelo TX wrote .. item put out Duro brand products have found auto supply houses Duro calls E-POX-E Ce ment Filler two parts black white mixed very putty-like can thinned rubbing alcohol putty state will set under water Finally Richard Forbes Mississippi State MS wrote product appears performs identically Duro Master Mend E-POX-E System Concrete Metal Filler TM-85 Ten ounces five oz epoxy five oz hardener $475 local building supply Hey thats great Isnt typical people hobby glad share good ideas product information have no idea whether above products available live run out Sears Filled Epoxy Ill look up anyone else comes up another replacement let know Ill pass along well Another letter came Jim Ewing Char lottestown Prince Edward Island Canada included copy proposal ex panded Turnaround Pattern program Jim sug gests need additional Turn around schedules classes steps ladder rank beginner Masters Class proposes four schedules enable flier progress highest class calls classes Sportsman Novice Intermediate Master Jim reasons competitions necessary keep beginner mind en sure healthy growth activity believes Turnaround will inevitably become norm next few years acknowledges may coexist present-style pattern either case going need additional Turnaround schedules classes steps ladder rank beginner Masters Class proposes existing Sportsman class would first step Turnaround series competition two new classes should inserted Novice Turnaround termediate Turnaround proposed Novice Turnaround would have nine maneuvers because Nine manoeuvres misspelled hes Canadian R VP sufficient newcomer Turnaround handle overall style flying demanding Choosing nine manoeuvres also makes nice progression through classes nine Novice 15 Intermediate 21 Masters six-manoeuvre increase per class Heres Jims proposal Novice Turnaround Three Inside Loops Half-Reverse Cuban Eight Straight Inverted Flight Stall Turn Cobra Roll lmmelmann Turn Horizontal Roll Split S Cuban Eight Intermediate Turnaround Square Loop Stall Turn Slow Roll Half Cuban Eight Three Inside Loops Stall Turn w/4 Roll Upline Downline Two Rolls Opposite Direction Half Square Loop w/Half Roll Top Two-Turn Spin Humpty Bump w/V Roll Downline Horizontal Eight Immelmann Turn Outside Square Loop Reverse lmmelmann Turn Reverse Cuban Eight claims Intermediate Class required skill level increased considera bly although number manoeuvres kept 15 schedule compare diffi 48 Model Aviation culty mix between Advanced Expert Classes old system Both outside square manoeuvres used Although inevitable have some duplicate manoeuvres between classes attempt made give some variety well few new twists other manoeuvres opposite rolls upright Two-Turn Spin unique Humpty Bump demonstrate both schedules manoeuvres carefully chosen smooth constant flow Center manoeuvres require long path such Straight Inverted Flight Slow Roll matched turnaround manoeuvres take up little horizontal distance helps facilitate staying box Although box has mentioned regard Turnaround has partially defined dont believe has defined enforced enough present consists three angles measured pilots/judges position 600 right 600 left 600 vertical original intent Turnaround reduce area re quired accomplish full set pattern manoeuvres well slow aircraft down better depict realistic flight also reduces noise footprint getting major concern throughout entire world modeling angles defining box ob vious farther out fly longer path can take stay within prescribed angle example fly model path 200 meters you have flight path 693 meters 2273 feet length usable vertical height 3465 meters 11365 feet Absolutely ridiculous certainly within initial intent Turnaround flying box Edges box must defined enforced re quirements quite stringent full-scale aerobatics length box 1000 meters enforced consistent 600 definition already place let us choose reasonable distance out define reasonable box flying distance 100 meters chosen would define box length 3464 meters rounder figures 350 meters 1148 feet would also mean usable height 175 meters 574 feet adequate should limiting flying 500 feet less anyway Almost aircraft intended Turn around flying should able perform well within confines measurements further explore dimensions let us consider aircraft speed Since new style plane flies slowly let us say 70 mph should take about 112 seconds cross 350-meter box adequate faster planes let us say 100 mph would take 78 seconds cross box still adequate plane has average horizontal speed greater fly ing wrong kind plane Turnaround first place So let us design box way tended giving horizontal length 350 meters vertical height 175 meters would equivalent flying plane distance 101 meters dimensions should totally acceptable models fly ing Turnaround pattern should help discourage big footprint addi tional requirement will dictate need box line judges tennis would required sit line box edge see diagram award downgrades Continued page 150 40¶jcle ngnernOu ~ed SIc thOS paGO A1jOO r SuperLuFly finished wing ready join L Wing covered 1A6 plywood Easy build Easy fly Excellent plans Lots Hardware Accessories Builds less half time Super Lucky Fly II 45 65 Little Super Fly II 35 45 See local dealer call us tion dealer nearest JOHNNIE CASBURN MANUFACTURING CO 5715-SE E Rosedale Fort Worth TX 76112 Day 817/451-7537 t 817/572-1452 PO BOX 91 CA 96007RK PRODUCTSCall gi6hure SpecializIng ZENOAHIMALONEY/SACHS-DOLM4R Quafity Engines H K SUPERSTARTER MK il FIts OLIADRAS AND G-38 $2495 Also NowAvailableFor G-62 $2995 ENGINESKITS ZENGAH G-23S12995SACHS DOLMAR 37 W/MUFPLERS29995MODEL TECH KITS ZENGAH G-38S12495lforrttsVersort72 CAP 21 517995 ZENOAI-I G-62S 19995SACHS GOLMAR 37 W/MUFFLERS34995BIG UGLY STICK S9795 CUSTOM G-38SI 6995Speeg Starter CD IgrttttortThese Fantastic Ready-Built CUSTOM G-3BS 18995SACHS GOLMAR 52S3hS00Balsa Kits Perfect fQr WlSprrrg StarterWtSprerg StarterMALONEY ISO ORO-23 NEW Maloney 100 1 Cl Gasoline Engine wlmufller$12995. Replace balky alcohol burn lag mess making prop spiff lag dead stick landing 4 cycle 120 MALONEY 100 Easy starting reliable economical mention cleaner endless expensive PROPSiZl,gl HESIVES l~l SoS-IS58952 pa SLOW CA1595 18o8-14$8952 oz PAST CA$595 2506-IC$1595S MIN EPOITO rs ozI$650 20o8-14$1095IS MIN EPOXY 19001$650 2206-IS$109530 MIN EPGXt 19001$650 AdO 02$0 Upsaca Oaoalog older COO anaddOonat 0250 610 agO 0750 UPS vISAItIC noac accept P,CetcjOect MODEL MOTOR MUGTM high quality totally glazed ceramic engine mug must modeler Standing 5t/2 inches tall large 10 oz capacity its real attention getter definite collectors piece years come Only Plus $200 postage $695 ling per order CA residents add sales faA MISCELLANEOUS CS SCALE TAIL WHEEL$1395 NGK POWERPLUGt2SS AMSUIL lW-I OIL1295 WORLD 5-IEIPUTABAI$2495 G-38 MOUNT1179$ CS SPINN PRS 1-3 056 WORLD TES WHITEIt695 SPECIAL GUADRA 82 II ONLYI 525995 REPLACEMENT PARTS FOR Kra ft Engines Testori McCoy Talpan 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available RJL industries ox 5654 dena CA 91107 Phone 818 359-0016 June1986 49 pRopucrON from 5 FOUR CYCLE ENGINE MOUNT Cast atunwtum alloy Graund 9#sssst Mn Esight polish NrIstaed Socket cop screws 6ciudSd DRULED AND TAPPED FOR No JT20 OS MAX FS 20 No iT-dOUrrdrtisd tor 2t-AO NoJT-AttfVT2l No J1-42ENVA 35-40 AC No 11-43SAITO PA 30 No11-AdOSMAXPS4O No IT-ASSAIIO PA 40-AS No 11-46ENVA 46 AC No1149tfVlA9 No JT60Undrilled 60-90 No41-6106 MAX PS61 No 41-6205 MAX P560-75-90 No JT-6AENYA 60-8090-120 AC No JT-65SAtTO PA 65 No 11120 Undstled tar 120 No 11-121 ENYA 8 120 PC No 41122 OS MAX PS 120 No 41 -123 SAITO PA 120 No 41125 Super TrO 353000 GIANT ENGINE MUFFLERS availableMalched engine 1a pipe extensions mounting Uclts inctided hobby ShopORDIR DIRICT for AILAS 46 BUlLY COBRA KAWASAXI KIOOIIZ SACH-DOMLUR SUPER return UPS shipment c-oat OLsssts35 jiont flsss jir5i jiosa ousasaji jiZ34 055000 GSa jiT5r Atist OR jio ji35 60ji45 zEtottis 5 mm ji603 00055000058555 ji535815513 2560 SIDE MOUNT MUFFLERS tot PIllS CAP 21 CESSNA 150 etc S lrfl toroere Co uNIVERSAL IN-COWL AIRCRAFT MUFFLERS r 19-4045-6075-13 engines Most versatile mufflers ever offered Designed tit inside cowls limited space can also ssed HEUCOPTERS BOATS UPRIGHT INVERTED SIDE mounted engines Exhaust tubes point almost direction Worm drive clamp tor universal mounting can bolted directly engine INCtUOSso Echocireeiescn wilt CiosrOr toe OtE c25im mattiol oigrrnent plot, rite eta ro,rro ICIew 5850 sassc aimOIMENSIOOEIII iLl -C--l IGNO ENGINE iraus in-tO1800 IS 45-60am am jima UPRIG5II5IDEI INOSETED jiasa ia-osiaoo jisaasmmm jima isis4560 INWETIS ENGINEE0GI1IJii 30853 19605860No il-Ask JT-55385-601900 MAiLOROE5ttSeadd555IsSUPS5060 00-9037513 aim sitippinS Owol MO ViSA MCOI coo accepted Add 500 TIara tOt coD FREE CA ENGINE TESTING STANDS cast Aluminum l mstralnlng No TOSS OaekAs5Sp sesse No 60P2300 45-As No ITS 55 RC Scale/Wischers Continued page 47 tions sketched certain parts will fit across fuselage width Plot sec tion shapes same manner other curves three-view Important bulkheads firewall engine mounting another wing leading edge preferably plywood other load-carrying member wing trailing edge greatest trouble source model design built-in overweight condition Adding structure using heavier material sections necessary can produce model must fly fast become airborne resulting control problems Concentrate weight points needing extra strength hard materials meet balsa engine mount commonly used Scale models aluminum fastened plywood firewall ply epoxy-glued balsa frame large-area balsa gussets Landing gears also require special attention steel connects balsa structure inter mediate parts hardwood ply will spread loads landing shock Tires alone shouldnt depended upon absorb shock gear springs preferred Telescoping struts internal springs sometimes used full-size aircraft preserve Scale appearance function Fastening such members wing fuselage demands load spread over area strut should set hardwood block anchored adjacent structure steel bolts Glue alone will withstand repeated landing shock music-wire gear will endure unlimited number landings should tied ply steel straps machine screws necessary weight Avoid adding weight elsewhere Construction technique information can found examining magazine drawings kits modeler designing own Scale air craft first time will have previous experience kits scratch-building design efforts shamelessly borrow con struction ideas everyone assume others likewise Internal structure use foam wings step-by-step construction procedures have detailed discussion th model magazines modeler does own designing truly innovative ideas begin materialize therein lies real satisf Lction None us knew capabilities until made first bold step model desigt Hobt Hobl forml mi craft ypoxy colors Pettit Paint Co maker ypoxy products has published series ilas over past several years telling various shades used military air f nations involved WW II latest probably last series Ger man Luftwaffe insignia marking colors cross swastika insignia black white standard Hobbypoxy HB1 Black HlO White may used Note however insignia painted semi-gloss finish produced slight sheen Hobbypoxy suggests using combina tion gloss hardener flat hardener about 50-50 mix should produce effect Registration unit code markings flat finish common being black white red yellow blue formulas presented 04 Yellow 23 Red 24 Dark Blue Luftwaffe colors Yellow 0440 parts H49 Cub Yellow two parts H70 Gray part H65 Bright Red Red 2332 parts H65 Bright Red eight parts H66 Dark Red part H47 Bright Yellow part H1O White Dark Blue 24three parts H24 Dark Blue five parts H65 Bright Red part HlO White Bob Dolly Wischer S-221 Lapham Peak Rd Delafield WI 53018 RC Aerobatics/Van Putte Continued page 49 disqualifications manoeuvres outside box As already know dont care Turnaround pattern competitor can will participate judge sup porter concept think Jim Ewing has some excellent ideas Comments Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Old-Timers/Mathews Continued page 51 tion Try build models eight oz per sq ft minimum-wing-loading rules Building light partly state mindyou must constantly aware weight little little adds up overweight model Keep postal diet scale Continued page 152 150 Model Aviation 600 800 1000 1000 1000 1000 1000 1000 1200 1100 1300 1300 1300 1300 1600 2000 1800 1800 1800 OUR FACTORY BURNED DOWN ON FEB 2 1986 WE NOW HAVE NEW BUILDING DELIVERING ORDERS AND SOON WILL BE BACK TO FULL PRODUCTION WE APPRECIATE YOUR SUPPORT IN THE PAST AND HOPE THAT IT WILL CONTINUE LARGE CATALOG OF QUALITY SUPPLIES KITS AND PLANS FOR RUBBER POWERED MODELS ALSO CO-2 ENGINES BLIMPS ELECTRIC AND MORE FOU CdT4LOG $299 O NEW NO 619 448-1818 ymers N FREE FLIGHT UC SPEED RACING COMBAT EPOXY-GLASS PROPS CONTINUOUS LENGTH AS LOW AS $125 EA FREE BROCHURE J &JleO Div Pops Props Inc J/I 09 Crescent Sunnyside WA 98944 509-837-5983
Edition: Model Aviation - 1986/06
Page Numbers: 48, 49, 150
Radio Control Sport Aerobatics Ron Van Putte FEW DAYS ago got telephone call Bob Pinkus Dayton OH wanted talk about use aerosol after-run oil mentioned previous columns like use because engine runs dis tributes oil throughout its parts said didnt understand its use wouldnt also cause corrosion because chemi cal by-products combustion water set back didnt have answer him except say hadnt experienced bearing corrosion since start ing use aerosol after-run oil moisture displacement lubricant Two days later struck mewhen burn after-run oil exhaust never gets bearings part burns exhausted engine Its lubricant thats crankcase gets distributed bearings works offered tell people what radio using Nats shot down alleged interference expected strong response So warned postman put request larger vehicle neces sary too Ive getting writers cramp answering mail Most people glad hear because wasnt using brand radio own few got bad news However though some people got bad news need understand cir cumstances shot down probably hap pen very infrequently flying radio some pretty nasty places two years before being shot down 1985 Nats two situations hadnt encountered before fly ing 1985 Nats 1983 Nats 1984 Nats Id never flown FM-transmittercontrolled airplane front AM transmitters 1000 away kind situation rare ly occurs flying sites happens quite often Nats hope ways avoid being shot down using FM transmitter future Nats course way own PCM FM transmitterand now However people own conven tional FM transmitters hope understand RC electronics can come up field layout and/or flying pro cedures will preclude having others go through what three us suffered Channel 40 FM 1985 Nats George Myers Radio Technique column January 1986 issue went type problem shot down may little heavy going some fliers its well worth reading information February 1986 column too Ive also gotten lot letters about discontinuance Sears Filled Epoxy commiserated few liked C uJ uJ -J THE BOX LINE JUDGE 35am 6Oo6Oo PILOT/JUDGES Ci u-I u-I z LINE JUDGE B Check out Jim Ewings Charlottestown PEI Canada suggestion enforcing Turnaround box Details about thisand moreare column searched forand founda suitable substi tute Ron Clem San Diego CA wrote found out about product called JB Weld PO Box 483 Sulphur Springs TX 75482 bought some Well names changed believe product same has same consistency color pot life etc its available through Pep Boys auto parts stores probably other auto parts stores well Eldon Wilson San Angelo TX wrote .. item put out Duro brand products have found auto supply houses Duro calls E-POX-E Ce ment Filler two parts black white mixed very putty-like can thinned rubbing alcohol putty state will set under water Finally Richard Forbes Mississippi State MS wrote product appears performs identically Duro Master Mend E-POX-E System Concrete Metal Filler TM-85 Ten ounces five oz epoxy five oz hardener $475 local building supply Hey thats great Isnt typical people hobby glad share good ideas product information have no idea whether above products available live run out Sears Filled Epoxy Ill look up anyone else comes up another replacement let know Ill pass along well Another letter came Jim Ewing Char lottestown Prince Edward Island Canada included copy proposal ex panded Turnaround Pattern program Jim sug gests need additional Turn around schedules classes steps ladder rank beginner Masters Class proposes four schedules enable flier progress highest class calls classes Sportsman Novice Intermediate Master Jim reasons competitions necessary keep beginner mind en sure healthy growth activity believes Turnaround will inevitably become norm next few years acknowledges may coexist present-style pattern either case going need additional Turnaround schedules classes steps ladder rank beginner Masters Class proposes existing Sportsman class would first step Turnaround series competition two new classes should inserted Novice Turnaround termediate Turnaround proposed Novice Turnaround would have nine maneuvers because Nine manoeuvres misspelled hes Canadian R VP sufficient newcomer Turnaround handle overall style flying demanding Choosing nine manoeuvres also makes nice progression through classes nine Novice 15 Intermediate 21 Masters six-manoeuvre increase per class Heres Jims proposal Novice Turnaround Three Inside Loops Half-Reverse Cuban Eight Straight Inverted Flight Stall Turn Cobra Roll lmmelmann Turn Horizontal Roll Split S Cuban Eight Intermediate Turnaround Square Loop Stall Turn Slow Roll Half Cuban Eight Three Inside Loops Stall Turn w/4 Roll Upline Downline Two Rolls Opposite Direction Half Square Loop w/Half Roll Top Two-Turn Spin Humpty Bump w/V Roll Downline Horizontal Eight Immelmann Turn Outside Square Loop Reverse lmmelmann Turn Reverse Cuban Eight claims Intermediate Class required skill level increased considera bly although number manoeuvres kept 15 schedule compare diffi 48 Model Aviation culty mix between Advanced Expert Classes old system Both outside square manoeuvres used Although inevitable have some duplicate manoeuvres between classes attempt made give some variety well few new twists other manoeuvres opposite rolls upright Two-Turn Spin unique Humpty Bump demonstrate both schedules manoeuvres carefully chosen smooth constant flow Center manoeuvres require long path such Straight Inverted Flight Slow Roll matched turnaround manoeuvres take up little horizontal distance helps facilitate staying box Although box has mentioned regard Turnaround has partially defined dont believe has defined enforced enough present consists three angles measured pilots/judges position 600 right 600 left 600 vertical original intent Turnaround reduce area re quired accomplish full set pattern manoeuvres well slow aircraft down better depict realistic flight also reduces noise footprint getting major concern throughout entire world modeling angles defining box ob vious farther out fly longer path can take stay within prescribed angle example fly model path 200 meters you have flight path 693 meters 2273 feet length usable vertical height 3465 meters 11365 feet Absolutely ridiculous certainly within initial intent Turnaround flying box Edges box must defined enforced re quirements quite stringent full-scale aerobatics length box 1000 meters enforced consistent 600 definition already place let us choose reasonable distance out define reasonable box flying distance 100 meters chosen would define box length 3464 meters rounder figures 350 meters 1148 feet would also mean usable height 175 meters 574 feet adequate should limiting flying 500 feet less anyway Almost aircraft intended Turn around flying should able perform well within confines measurements further explore dimensions let us consider aircraft speed Since new style plane flies slowly let us say 70 mph should take about 112 seconds cross 350-meter box adequate faster planes let us say 100 mph would take 78 seconds cross box still adequate plane has average horizontal speed greater fly ing wrong kind plane Turnaround first place So let us design box way tended giving horizontal length 350 meters vertical height 175 meters would equivalent flying plane distance 101 meters dimensions should totally acceptable models fly ing Turnaround pattern should help discourage big footprint addi tional requirement will dictate need box line judges tennis would required sit line box edge see diagram award downgrades Continued page 150 40¶jcle ngnernOu ~ed SIc thOS paGO A1jOO r SuperLuFly finished wing ready join L Wing covered 1A6 plywood Easy build Easy fly Excellent plans Lots Hardware Accessories Builds less half time Super Lucky Fly II 45 65 Little Super Fly II 35 45 See local dealer call us tion dealer nearest JOHNNIE CASBURN MANUFACTURING CO 5715-SE E Rosedale Fort Worth TX 76112 Day 817/451-7537 t 817/572-1452 PO BOX 91 CA 96007RK PRODUCTSCall gi6hure SpecializIng ZENOAHIMALONEY/SACHS-DOLM4R Quafity Engines H K SUPERSTARTER MK il FIts OLIADRAS AND G-38 $2495 Also NowAvailableFor G-62 $2995 ENGINESKITS ZENGAH G-23S12995SACHS DOLMAR 37 W/MUFPLERS29995MODEL TECH KITS ZENGAH G-38S12495lforrttsVersort72 CAP 21 517995 ZENOAI-I G-62S 19995SACHS GOLMAR 37 W/MUFFLERS34995BIG UGLY STICK S9795 CUSTOM G-38SI 6995Speeg Starter CD IgrttttortThese Fantastic Ready-Built CUSTOM G-3BS 18995SACHS GOLMAR 52S3hS00Balsa Kits Perfect fQr WlSprrrg StarterWtSprerg StarterMALONEY ISO ORO-23 NEW Maloney 100 1 Cl Gasoline Engine wlmufller$12995. Replace balky alcohol burn lag mess making prop spiff lag dead stick landing 4 cycle 120 MALONEY 100 Easy starting reliable economical mention cleaner endless expensive PROPSiZl,gl HESIVES l~l SoS-IS58952 pa SLOW CA1595 18o8-14$8952 oz PAST CA$595 2506-IC$1595S MIN EPOITO rs ozI$650 20o8-14$1095IS MIN EPOXY 19001$650 2206-IS$109530 MIN EPGXt 19001$650 AdO 02$0 Upsaca Oaoalog older COO anaddOonat 0250 610 agO 0750 UPS vISAItIC noac accept P,CetcjOect MODEL MOTOR MUGTM high quality totally glazed ceramic engine mug must modeler Standing 5t/2 inches tall large 10 oz capacity its real attention getter definite collectors piece years come Only Plus $200 postage $695 ling per order CA residents add sales faA MISCELLANEOUS CS SCALE TAIL WHEEL$1395 NGK POWERPLUGt2SS AMSUIL lW-I OIL1295 WORLD 5-IEIPUTABAI$2495 G-38 MOUNT1179$ CS SPINN PRS 1-3 056 WORLD TES WHITEIt695 SPECIAL GUADRA 82 II ONLYI 525995 REPLACEMENT PARTS FOR Kra ft Engines Testori McCoy Talpan 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available RJL industries ox 5654 dena CA 91107 Phone 818 359-0016 June1986 49 pRopucrON from 5 FOUR CYCLE ENGINE MOUNT Cast atunwtum alloy Graund 9#sssst Mn Esight polish NrIstaed Socket cop screws 6ciudSd DRULED AND TAPPED FOR No JT20 OS MAX FS 20 No iT-dOUrrdrtisd tor 2t-AO NoJT-AttfVT2l No J1-42ENVA 35-40 AC No 11-43SAITO PA 30 No11-AdOSMAXPS4O No IT-ASSAIIO PA 40-AS No 11-46ENVA 46 AC No1149tfVlA9 No JT60Undrilled 60-90 No41-6106 MAX PS61 No 41-6205 MAX P560-75-90 No JT-6AENYA 60-8090-120 AC No JT-65SAtTO PA 65 No 11120 Undstled tar 120 No 11-121 ENYA 8 120 PC No 41122 OS MAX PS 120 No 41 -123 SAITO PA 120 No 41125 Super TrO 353000 GIANT ENGINE MUFFLERS availableMalched engine 1a pipe extensions mounting Uclts inctided hobby ShopORDIR DIRICT for AILAS 46 BUlLY COBRA KAWASAXI KIOOIIZ SACH-DOMLUR SUPER return UPS shipment c-oat OLsssts35 jiont flsss jir5i jiosa ousasaji jiZ34 055000 GSa jiT5r Atist OR jio ji35 60ji45 zEtottis 5 mm ji603 00055000058555 ji535815513 2560 SIDE MOUNT MUFFLERS tot PIllS CAP 21 CESSNA 150 etc S lrfl toroere Co uNIVERSAL IN-COWL AIRCRAFT MUFFLERS r 19-4045-6075-13 engines Most versatile mufflers ever offered Designed tit inside cowls limited space can also ssed HEUCOPTERS BOATS UPRIGHT INVERTED SIDE mounted engines Exhaust tubes point almost direction Worm drive clamp tor universal mounting can bolted directly engine INCtUOSso Echocireeiescn wilt CiosrOr toe OtE c25im mattiol oigrrnent plot, rite eta ro,rro ICIew 5850 sassc aimOIMENSIOOEIII iLl -C--l IGNO ENGINE iraus in-tO1800 IS 45-60am am jima UPRIG5II5IDEI INOSETED jiasa ia-osiaoo jisaasmmm jima isis4560 INWETIS ENGINEE0GI1IJii 30853 19605860No il-Ask JT-55385-601900 MAiLOROE5ttSeadd555IsSUPS5060 00-9037513 aim sitippinS Owol MO ViSA MCOI coo accepted Add 500 TIara tOt coD FREE CA ENGINE TESTING STANDS cast Aluminum l mstralnlng No TOSS OaekAs5Sp sesse No 60P2300 45-As No ITS 55 RC Scale/Wischers Continued page 47 tions sketched certain parts will fit across fuselage width Plot sec tion shapes same manner other curves three-view Important bulkheads firewall engine mounting another wing leading edge preferably plywood other load-carrying member wing trailing edge greatest trouble source model design built-in overweight condition Adding structure using heavier material sections necessary can produce model must fly fast become airborne resulting control problems Concentrate weight points needing extra strength hard materials meet balsa engine mount commonly used Scale models aluminum fastened plywood firewall ply epoxy-glued balsa frame large-area balsa gussets Landing gears also require special attention steel connects balsa structure inter mediate parts hardwood ply will spread loads landing shock Tires alone shouldnt depended upon absorb shock gear springs preferred Telescoping struts internal springs sometimes used full-size aircraft preserve Scale appearance function Fastening such members wing fuselage demands load spread over area strut should set hardwood block anchored adjacent structure steel bolts Glue alone will withstand repeated landing shock music-wire gear will endure unlimited number landings should tied ply steel straps machine screws necessary weight Avoid adding weight elsewhere Construction technique information can found examining magazine drawings kits modeler designing own Scale air craft first time will have previous experience kits scratch-building design efforts shamelessly borrow con struction ideas everyone assume others likewise Internal structure use foam wings step-by-step construction procedures have detailed discussion th model magazines modeler does own designing truly innovative ideas begin materialize therein lies real satisf Lction None us knew capabilities until made first bold step model desigt Hobt Hobl forml mi craft ypoxy colors Pettit Paint Co maker ypoxy products has published series ilas over past several years telling various shades used military air f nations involved WW II latest probably last series Ger man Luftwaffe insignia marking colors cross swastika insignia black white standard Hobbypoxy HB1 Black HlO White may used Note however insignia painted semi-gloss finish produced slight sheen Hobbypoxy suggests using combina tion gloss hardener flat hardener about 50-50 mix should produce effect Registration unit code markings flat finish common being black white red yellow blue formulas presented 04 Yellow 23 Red 24 Dark Blue Luftwaffe colors Yellow 0440 parts H49 Cub Yellow two parts H70 Gray part H65 Bright Red Red 2332 parts H65 Bright Red eight parts H66 Dark Red part H47 Bright Yellow part H1O White Dark Blue 24three parts H24 Dark Blue five parts H65 Bright Red part HlO White Bob Dolly Wischer S-221 Lapham Peak Rd Delafield WI 53018 RC Aerobatics/Van Putte Continued page 49 disqualifications manoeuvres outside box As already know dont care Turnaround pattern competitor can will participate judge sup porter concept think Jim Ewing has some excellent ideas Comments Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Old-Timers/Mathews Continued page 51 tion Try build models eight oz per sq ft minimum-wing-loading rules Building light partly state mindyou must constantly aware weight little little adds up overweight model Keep postal diet scale Continued page 152 150 Model Aviation 600 800 1000 1000 1000 1000 1000 1000 1200 1100 1300 1300 1300 1300 1600 2000 1800 1800 1800 OUR FACTORY BURNED DOWN ON FEB 2 1986 WE NOW HAVE NEW BUILDING DELIVERING ORDERS AND SOON WILL BE BACK TO FULL PRODUCTION WE APPRECIATE YOUR SUPPORT IN THE PAST AND HOPE THAT IT WILL CONTINUE LARGE CATALOG OF QUALITY SUPPLIES KITS AND PLANS FOR RUBBER POWERED MODELS ALSO CO-2 ENGINES BLIMPS ELECTRIC AND MORE FOU CdT4LOG $299 O NEW NO 619 448-1818 ymers N FREE FLIGHT UC SPEED RACING COMBAT EPOXY-GLASS PROPS CONTINUOUS LENGTH AS LOW AS $125 EA FREE BROCHURE J &JleO Div Pops Props Inc J/I 09 Crescent Sunnyside WA 98944 509-837-5983
Edition: Model Aviation - 1986/06
Page Numbers: 48, 49, 150
Radio Control Sport Aerobatics Ron Van Putte FEW DAYS ago got telephone call Bob Pinkus Dayton OH wanted talk about use aerosol after-run oil mentioned previous columns like use because engine runs dis tributes oil throughout its parts said didnt understand its use wouldnt also cause corrosion because chemi cal by-products combustion water set back didnt have answer him except say hadnt experienced bearing corrosion since start ing use aerosol after-run oil moisture displacement lubricant Two days later struck mewhen burn after-run oil exhaust never gets bearings part burns exhausted engine Its lubricant thats crankcase gets distributed bearings works offered tell people what radio using Nats shot down alleged interference expected strong response So warned postman put request larger vehicle neces sary too Ive getting writers cramp answering mail Most people glad hear because wasnt using brand radio own few got bad news However though some people got bad news need understand cir cumstances shot down probably hap pen very infrequently flying radio some pretty nasty places two years before being shot down 1985 Nats two situations hadnt encountered before fly ing 1985 Nats 1983 Nats 1984 Nats Id never flown FM-transmittercontrolled airplane front AM transmitters 1000 away kind situation rare ly occurs flying sites happens quite often Nats hope ways avoid being shot down using FM transmitter future Nats course way own PCM FM transmitterand now However people own conven tional FM transmitters hope understand RC electronics can come up field layout and/or flying pro cedures will preclude having others go through what three us suffered Channel 40 FM 1985 Nats George Myers Radio Technique column January 1986 issue went type problem shot down may little heavy going some fliers its well worth reading information February 1986 column too Ive also gotten lot letters about discontinuance Sears Filled Epoxy commiserated few liked C uJ uJ -J THE BOX LINE JUDGE 35am 6Oo6Oo PILOT/JUDGES Ci u-I u-I z LINE JUDGE B Check out Jim Ewings Charlottestown PEI Canada suggestion enforcing Turnaround box Details about thisand moreare column searched forand founda suitable substi tute Ron Clem San Diego CA wrote found out about product called JB Weld PO Box 483 Sulphur Springs TX 75482 bought some Well names changed believe product same has same consistency color pot life etc its available through Pep Boys auto parts stores probably other auto parts stores well Eldon Wilson San Angelo TX wrote .. item put out Duro brand products have found auto supply houses Duro calls E-POX-E Ce ment Filler two parts black white mixed very putty-like can thinned rubbing alcohol putty state will set under water Finally Richard Forbes Mississippi State MS wrote product appears performs identically Duro Master Mend E-POX-E System Concrete Metal Filler TM-85 Ten ounces five oz epoxy five oz hardener $475 local building supply Hey thats great Isnt typical people hobby glad share good ideas product information have no idea whether above products available live run out Sears Filled Epoxy Ill look up anyone else comes up another replacement let know Ill pass along well Another letter came Jim Ewing Char lottestown Prince Edward Island Canada included copy proposal ex panded Turnaround Pattern program Jim sug gests need additional Turn around schedules classes steps ladder rank beginner Masters Class proposes four schedules enable flier progress highest class calls classes Sportsman Novice Intermediate Master Jim reasons competitions necessary keep beginner mind en sure healthy growth activity believes Turnaround will inevitably become norm next few years acknowledges may coexist present-style pattern either case going need additional Turnaround schedules classes steps ladder rank beginner Masters Class proposes existing Sportsman class would first step Turnaround series competition two new classes should inserted Novice Turnaround termediate Turnaround proposed Novice Turnaround would have nine maneuvers because Nine manoeuvres misspelled hes Canadian R VP sufficient newcomer Turnaround handle overall style flying demanding Choosing nine manoeuvres also makes nice progression through classes nine Novice 15 Intermediate 21 Masters six-manoeuvre increase per class Heres Jims proposal Novice Turnaround Three Inside Loops Half-Reverse Cuban Eight Straight Inverted Flight Stall Turn Cobra Roll lmmelmann Turn Horizontal Roll Split S Cuban Eight Intermediate Turnaround Square Loop Stall Turn Slow Roll Half Cuban Eight Three Inside Loops Stall Turn w/4 Roll Upline Downline Two Rolls Opposite Direction Half Square Loop w/Half Roll Top Two-Turn Spin Humpty Bump w/V Roll Downline Horizontal Eight Immelmann Turn Outside Square Loop Reverse lmmelmann Turn Reverse Cuban Eight claims Intermediate Class required skill level increased considera bly although number manoeuvres kept 15 schedule compare diffi 48 Model Aviation culty mix between Advanced Expert Classes old system Both outside square manoeuvres used Although inevitable have some duplicate manoeuvres between classes attempt made give some variety well few new twists other manoeuvres opposite rolls upright Two-Turn Spin unique Humpty Bump demonstrate both schedules manoeuvres carefully chosen smooth constant flow Center manoeuvres require long path such Straight Inverted Flight Slow Roll matched turnaround manoeuvres take up little horizontal distance helps facilitate staying box Although box has mentioned regard Turnaround has partially defined dont believe has defined enforced enough present consists three angles measured pilots/judges position 600 right 600 left 600 vertical original intent Turnaround reduce area re quired accomplish full set pattern manoeuvres well slow aircraft down better depict realistic flight also reduces noise footprint getting major concern throughout entire world modeling angles defining box ob vious farther out fly longer path can take stay within prescribed angle example fly model path 200 meters you have flight path 693 meters 2273 feet length usable vertical height 3465 meters 11365 feet Absolutely ridiculous certainly within initial intent Turnaround flying box Edges box must defined enforced re quirements quite stringent full-scale aerobatics length box 1000 meters enforced consistent 600 definition already place let us choose reasonable distance out define reasonable box flying distance 100 meters chosen would define box length 3464 meters rounder figures 350 meters 1148 feet would also mean usable height 175 meters 574 feet adequate should limiting flying 500 feet less anyway Almost aircraft intended Turn around flying should able perform well within confines measurements further explore dimensions let us consider aircraft speed Since new style plane flies slowly let us say 70 mph should take about 112 seconds cross 350-meter box adequate faster planes let us say 100 mph would take 78 seconds cross box still adequate plane has average horizontal speed greater fly ing wrong kind plane Turnaround first place So let us design box way tended giving horizontal length 350 meters vertical height 175 meters would equivalent flying plane distance 101 meters dimensions should totally acceptable models fly ing Turnaround pattern should help discourage big footprint addi tional requirement will dictate need box line judges tennis would required sit line box edge see diagram award downgrades Continued page 150 40¶jcle ngnernOu ~ed SIc thOS paGO A1jOO r SuperLuFly finished wing ready join L Wing covered 1A6 plywood Easy build Easy fly Excellent plans Lots Hardware Accessories Builds less half time Super Lucky Fly II 45 65 Little Super Fly II 35 45 See local dealer call us tion dealer nearest JOHNNIE CASBURN MANUFACTURING CO 5715-SE E Rosedale Fort Worth TX 76112 Day 817/451-7537 t 817/572-1452 PO BOX 91 CA 96007RK PRODUCTSCall gi6hure SpecializIng ZENOAHIMALONEY/SACHS-DOLM4R Quafity Engines H K SUPERSTARTER MK 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Replace balky alcohol burn lag mess making prop spiff lag dead stick landing 4 cycle 120 MALONEY 100 Easy starting reliable economical mention cleaner endless expensive PROPSiZl,gl HESIVES l~l SoS-IS58952 pa SLOW CA1595 18o8-14$8952 oz PAST CA$595 2506-IC$1595S MIN EPOITO rs ozI$650 20o8-14$1095IS MIN EPOXY 19001$650 2206-IS$109530 MIN EPGXt 19001$650 AdO 02$0 Upsaca Oaoalog older COO anaddOonat 0250 610 agO 0750 UPS vISAItIC noac accept P,CetcjOect MODEL MOTOR MUGTM high quality totally glazed ceramic engine mug must modeler Standing 5t/2 inches tall large 10 oz capacity its real attention getter definite collectors piece years come Only Plus $200 postage $695 ling per order CA residents add sales faA MISCELLANEOUS CS SCALE TAIL WHEEL$1395 NGK POWERPLUGt2SS AMSUIL lW-I OIL1295 WORLD 5-IEIPUTABAI$2495 G-38 MOUNT1179$ CS SPINN PRS 1-3 056 WORLD TES WHITEIt695 SPECIAL GUADRA 82 II ONLYI 525995 REPLACEMENT PARTS FOR Kra ft Engines Testori McCoy Talpan 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available RJL industries ox 5654 dena CA 91107 Phone 818 359-0016 June1986 49 pRopucrON from 5 FOUR CYCLE ENGINE MOUNT Cast atunwtum alloy Graund 9#sssst Mn Esight polish NrIstaed Socket cop screws 6ciudSd DRULED AND TAPPED FOR No JT20 OS MAX FS 20 No iT-dOUrrdrtisd tor 2t-AO NoJT-AttfVT2l No J1-42ENVA 35-40 AC No 11-43SAITO PA 30 No11-AdOSMAXPS4O No IT-ASSAIIO PA 40-AS No 11-46ENVA 46 AC No1149tfVlA9 No JT60Undrilled 60-90 No41-6106 MAX PS61 No 41-6205 MAX P560-75-90 No JT-6AENYA 60-8090-120 AC No JT-65SAtTO PA 65 No 11120 Undstled tar 120 No 11-121 ENYA 8 120 PC No 41122 OS MAX PS 120 No 41 -123 SAITO PA 120 No 41125 Super TrO 353000 GIANT ENGINE MUFFLERS availableMalched engine 1a pipe extensions mounting Uclts inctided hobby ShopORDIR DIRICT for AILAS 46 BUlLY COBRA KAWASAXI KIOOIIZ SACH-DOMLUR SUPER return UPS shipment c-oat OLsssts35 jiont flsss jir5i jiosa ousasaji jiZ34 055000 GSa jiT5r Atist OR jio ji35 60ji45 zEtottis 5 mm ji603 00055000058555 ji535815513 2560 SIDE MOUNT MUFFLERS tot PIllS CAP 21 CESSNA 150 etc S lrfl toroere Co uNIVERSAL IN-COWL AIRCRAFT MUFFLERS r 19-4045-6075-13 engines Most versatile mufflers ever offered Designed tit inside cowls limited space can also ssed HEUCOPTERS BOATS UPRIGHT INVERTED SIDE mounted engines Exhaust tubes point almost direction Worm drive clamp tor universal mounting can bolted directly engine INCtUOSso Echocireeiescn wilt CiosrOr toe OtE c25im mattiol oigrrnent plot, rite eta ro,rro ICIew 5850 sassc aimOIMENSIOOEIII iLl -C--l IGNO ENGINE iraus in-tO1800 IS 45-60am am jima UPRIG5II5IDEI INOSETED jiasa ia-osiaoo jisaasmmm jima isis4560 INWETIS ENGINEE0GI1IJii 30853 19605860No il-Ask JT-55385-601900 MAiLOROE5ttSeadd555IsSUPS5060 00-9037513 aim sitippinS Owol MO ViSA MCOI coo accepted Add 500 TIara tOt coD FREE CA ENGINE TESTING STANDS cast Aluminum l mstralnlng No TOSS OaekAs5Sp sesse No 60P2300 45-As No ITS 55 RC Scale/Wischers Continued page 47 tions sketched certain parts will fit across fuselage width Plot sec tion shapes same manner other curves three-view Important bulkheads firewall engine mounting another wing leading edge preferably plywood other load-carrying member wing trailing edge greatest trouble source model design built-in overweight condition Adding structure using heavier material sections necessary can produce model must fly fast become airborne resulting control problems Concentrate weight points needing extra strength hard materials meet balsa engine mount commonly used Scale models aluminum fastened plywood firewall ply epoxy-glued balsa frame large-area balsa gussets Landing gears also require special attention steel connects balsa structure inter mediate parts hardwood ply will spread loads landing shock Tires alone shouldnt depended upon absorb shock gear springs preferred Telescoping struts internal springs sometimes used full-size aircraft preserve Scale appearance function Fastening such members wing fuselage demands load spread over area strut should set hardwood block anchored adjacent structure steel bolts Glue alone will withstand repeated landing shock music-wire gear will endure unlimited number landings should tied ply steel straps machine screws necessary weight Avoid adding weight elsewhere Construction technique information can found examining magazine drawings kits modeler designing own Scale air craft first time will have previous experience kits scratch-building design efforts shamelessly borrow con struction ideas everyone assume others likewise Internal structure use foam wings step-by-step construction procedures have detailed discussion th model magazines modeler does own designing truly innovative ideas begin materialize therein lies real satisf Lction None us knew capabilities until made first bold step model desigt Hobt Hobl forml mi craft ypoxy colors Pettit Paint Co maker ypoxy products has published series ilas over past several years telling various shades used military air f nations involved WW II latest probably last series Ger man Luftwaffe insignia marking colors cross swastika insignia black white standard Hobbypoxy HB1 Black HlO White may used Note however insignia painted semi-gloss finish produced slight sheen Hobbypoxy suggests using combina tion gloss hardener flat hardener about 50-50 mix should produce effect Registration unit code markings flat finish common being black white red yellow blue formulas presented 04 Yellow 23 Red 24 Dark Blue Luftwaffe colors Yellow 0440 parts H49 Cub Yellow two parts H70 Gray part H65 Bright Red Red 2332 parts H65 Bright Red eight parts H66 Dark Red part H47 Bright Yellow part H1O White Dark Blue 24three parts H24 Dark Blue five parts H65 Bright Red part HlO White Bob Dolly Wischer S-221 Lapham Peak Rd Delafield WI 53018 RC Aerobatics/Van Putte Continued page 49 disqualifications manoeuvres outside box As already know dont care Turnaround pattern competitor can will participate judge sup porter concept think Jim Ewing has some excellent ideas Comments Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Old-Timers/Mathews Continued page 51 tion Try build models eight oz per sq ft minimum-wing-loading rules Building light partly state mindyou must constantly aware weight little little adds up overweight model Keep postal diet scale Continued page 152 150 Model Aviation 600 800 1000 1000 1000 1000 1000 1000 1200 1100 1300 1300 1300 1300 1600 2000 1800 1800 1800 OUR FACTORY BURNED DOWN ON FEB 2 1986 WE NOW HAVE NEW BUILDING DELIVERING ORDERS AND SOON WILL BE BACK TO FULL PRODUCTION WE APPRECIATE YOUR SUPPORT IN THE PAST AND HOPE THAT IT WILL CONTINUE LARGE CATALOG OF QUALITY SUPPLIES KITS AND PLANS FOR RUBBER POWERED MODELS ALSO CO-2 ENGINES BLIMPS ELECTRIC AND MORE FOU CdT4LOG $299 O NEW NO 619 448-1818 ymers N FREE FLIGHT UC SPEED RACING COMBAT EPOXY-GLASS PROPS CONTINUOUS LENGTH AS LOW AS $125 EA FREE BROCHURE J &JleO Div Pops Props Inc J/I 09 Crescent Sunnyside WA 98944 509-837-5983