CONTROL LINE NAVY CARRIER Em] TOPICS month include offerings Brodaks Control Line Aviation Supplies Service preview Carrier revival Whittier Narrows means adapting Fox Combat Special use other carburetors update Magnum 36 engine Ooops Mike Keville Mesa Arizona wrote Kuwait City working government contract first point out grievous error April column model fit late-night deadline chasing thought lessly misidentified Dauntless obviously SBD earlier Douglas TBD Devastator promise better next time Three-line control systems recently learned Leon Ryktarsyk no longer manufactures three-line handles bellcranks marketed under LR Products name control systems designed originally manufactured Bob J Robert Smurthwaite now manufactured distributed John Brodak Brodaks Control Line Aviation Supplies Service located 100 Park Ave Carmichaels PA 15320 Tel 412 966-2726 havent seen Johns catalog should worth $3 pricewhich refundable first order Johns philosophy provide thing control line modeler needs stocks complete line kits accessories tools materials Youll find Tony Dragos Control Line Classics Bill Hopkinss Custom Models Flite Line Aerosmith J Roberts Goldberg Sterling Top Flite Sig CL kits Other products make up full range items major manufacturers specialty shops see adver tising seldom see hobby shop shelves catalogs John constantly expanding stock goal serving CL modelers case missed Johns offerings include J Roberts Bearcat Corsair Skyraider kits manufactured Bob Smurrhwaite have unavailable recent years John has stock hopes soon offer some Bobs other profile models designed produced Mustang Supermarmne Seafang Tigercat Mauler models will qualify Profile Carrier bonus points Other possibilities likely interest Carrier modelers its too early discuss time Carrier revival Whittier Narrows Navy Carrier revival mentioned last column will held June 13 Whittier Narrows Recreation Area just east Los Angeles California meet being run Knights Round Circle Black Sheep Exhibition Squadron Knights holding two-day contest non-Carrier events Black Sheep handling Carrier activities Sunday Carrier events will include Profile Carrier Class II combined 15 Carrier Skyray Carrier Nostalgia Carrier three classes Nostalgia event should lot fun opportunity break out some older models relive little Carrier past rules will revert original scoring system line sliders never part original concept Carrier flying will prohibited Im looking forward attending meet will discuss future column Fox Combat Special Fox Combat Special has long popular combat light powerful readily available partsboth stock aftermarketfrom broad range suppliers Easy-to-find information engine sources Bill Bischofts relatively simple modifica tion Fox Combat Special allows accept 05 carburetor parts engine rework included Model Aircraft Combat Association MACA newsletter Combat Special obviously isnt available RC configuration Fox RC carburetor can fitted square intake Combat Special very little work Some modelers prefer other carbs Fox however square intake provides relatively large cross-section area lateral dimensions small compared bases carburetors enough throat area good Profile Carrier round peg doesnt fit square hole very effectively possible make square filing base carburetor will fit nominal 3/s-inch-wide Fox intake leaves very little material inserting attach screws Ive modified both SuperTigre Perry carbs successfully dont recommend relaxing enjoyable project OS carbs popular Profile Carrier particularly 4BK originally introduced 40 FSR bore OS carburetor base too large allow fit inside Fox intake Bill Bischoffs approach adapting OS 4BK carburetor Fox Combat Special 84 Model Aviation 4Keith Trostle prepares scratch-built F8F Bearcat flight atVought Kingfisher powered K&B 58 engine flown Whittier Narrows Model reminiscent smaller models thatChris Peters Octobers Whittier Narrows contest Model seems once dominated Carrier flyingto based April 1984 MA article Roland Baltes photo relatively easy offers strong installation well very good carburetor both performance ease adjustment Bills solution use sleeve over exterior Fox intake 1/2-inch inside dimension square tube exactly right job finding such tube could challenging Bill solved problem using technique borrowed stolen George Fogerty Almost good hardware store can supply copper pipe couplings 5/s-inch inside diameter straight coupling about inch long Converting round coupling square sleeve can accomplished piece 1/2-inch-square steel bar stock same store Georges method involves filing taper end steel bar applying liberal amount grease hammering coupling working progressively regreasing rod prevent sticking After shaping coupling should heated red heat allowed cool slowly relieve internal stresses caused forming process Bill cut off intake Combat Special just above lower spray bar holes Because crankshaft short carburetor must fit relatively low intake avoid interfering propeller raised areas around holes need ground down until flush sides intake Bill sawed through web front back sides intake allow sleeve fit over intake form good seal base sleeve should also shaped fit round contour crankcase base intake metal-filled epoxy used glue sleeve over intake both strength effective seal Clean parts thoroughly before assembly sure remove excess epoxy inside sleeve carburetor will mounted before epoxy hardens completely Cut off sleeve carburetor will just rest top original intake drill mounting holes sleeve appropriate point Metal-filled epoxy also used form seat carburetor Grease carburetor base screws stuff base carburetor tissue apply epoxy inside corners sleeve insert carburetor invert assembly excess epoxy will stay can get install screws secure carburetor After epoxy completely cured remove carburetor clean up excess epoxy Magnum Pro 36 engine Magnum Pro 36 RC mentioned April column good Profile Carrier candidate said engine priced right good qualityat least far physical appearance apparent parts fit concerned Unfortunately has critical faultit isnt 36 its 37 design displacement engine 365 cubic inches bore 208mm 819 inchesactually measured 820 inches stroke 176mm 693 inches oversize 14 percent seems common affliction among engines designed bigger competitors engine intended displacement-limited competi tion class SuperTigre Xli displaces 113 cubic inches OS. 12 really 13 Webra 32 displaces 323 cubic inches tendency appears to err small side representing engine can outperform accurately described competitors engines same advertised displacement must carefully check actual displacement referring specifications provided engineeasy enough local hobby shop mail no readily apparent parts swaps reduce displacement weight other attributes Magnum Pro 36 engine would seem make very good candidate AMA events requiring 3600 cubic inch maximum displacement size reduced fit rules Dont give up yet 4CL Aerobatics/McMiIIan Continued page 83 salvaging some cylinders become unusable can process applied production engines new used engines everything free flight control line radio control conjunction cylinder-port modification will offered give steadier engine run aerobatics events either unpiped piped todays Schnuerle-ported engines give strong four-cycle four-two break desirable stunt engine Most engines can easily retimed meet criterion Naturally have keen interest stunt engines constantly check various new engines see meet standards require Back late 1960s basic fitting ABC setup developed shop Needless say techniques have lost have developed some new better things along way Critical top performance total stability aluminum piston ABC setup special heat treatment produces setup totally stable requiring no relapping stoning after has run past few years modeling interests have centered childhood beginningsie Old-Timer Free Flight CL Stunt pure ignition engine running old gas n oil fuel Over past years Ive spent quite bit time testing retrofitting retesting various ignition engines like Super Cyclone Anderson Spitfire Orwick O&R etc leaving engines original plan form increased performance retrofitting has gratifying Ohlsson & Rice engines because cylinder permanently attached THE LEADER IN COMPETITION NEW NEW THP DESIGN TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP 66A778 677 7 / 8 67 678 PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION 10T020%INCREASE IN THRUST MFGOFSELECTHARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCH 534 634 72833456 833/,4568 845B6/27 9456677 1045667 106W8W 106EW 114677/778 115W 116EW 1167 124W 125W 1256 1356 1456 1556 164N 16678 August1993 85 Tr PROPELLERS CYCLE SERIES 100 p / jo -s RC PYLON RACING SERIES 500 DIAPITCH 7SN 5N 8/677/8 SERIES 400C 9777 W WIDE BLADE EW EXTRA WIDE N NARROW
Edition: Model Aviation - 1993/08
Page Numbers: 84, 85
CONTROL LINE NAVY CARRIER Em] TOPICS month include offerings Brodaks Control Line Aviation Supplies Service preview Carrier revival Whittier Narrows means adapting Fox Combat Special use other carburetors update Magnum 36 engine Ooops Mike Keville Mesa Arizona wrote Kuwait City working government contract first point out grievous error April column model fit late-night deadline chasing thought lessly misidentified Dauntless obviously SBD earlier Douglas TBD Devastator promise better next time Three-line control systems recently learned Leon Ryktarsyk no longer manufactures three-line handles bellcranks marketed under LR Products name control systems designed originally manufactured Bob J Robert Smurthwaite now manufactured distributed John Brodak Brodaks Control Line Aviation Supplies Service located 100 Park Ave Carmichaels PA 15320 Tel 412 966-2726 havent seen Johns catalog should worth $3 pricewhich refundable first order Johns philosophy provide thing control line modeler needs stocks complete line kits accessories tools materials Youll find Tony Dragos Control Line Classics Bill Hopkinss Custom Models Flite Line Aerosmith J Roberts Goldberg Sterling Top Flite Sig CL kits Other products make up full range items major manufacturers specialty shops see adver tising seldom see hobby shop shelves catalogs John constantly expanding stock goal serving CL modelers case missed Johns offerings include J Roberts Bearcat Corsair Skyraider kits manufactured Bob Smurrhwaite have unavailable recent years John has stock hopes soon offer some Bobs other profile models designed produced Mustang Supermarmne Seafang Tigercat Mauler models will qualify Profile Carrier bonus points Other possibilities likely interest Carrier modelers its too early discuss time Carrier revival Whittier Narrows Navy Carrier revival mentioned last column will held June 13 Whittier Narrows Recreation Area just east Los Angeles California meet being run Knights Round Circle Black Sheep Exhibition Squadron Knights holding two-day contest non-Carrier events Black Sheep handling Carrier activities Sunday Carrier events will include Profile Carrier Class II combined 15 Carrier Skyray Carrier Nostalgia Carrier three classes Nostalgia event should lot fun opportunity break out some older models relive little Carrier past rules will revert original scoring system line sliders never part original concept Carrier flying will prohibited Im looking forward attending meet will discuss future column Fox Combat Special Fox Combat Special has long popular combat light powerful readily available partsboth stock aftermarketfrom broad range suppliers Easy-to-find information engine sources Bill Bischofts relatively simple modifica tion Fox Combat Special allows accept 05 carburetor parts engine rework included Model Aircraft Combat Association MACA newsletter Combat Special obviously isnt available RC configuration Fox RC carburetor can fitted square intake Combat Special very little work Some modelers prefer other carbs Fox however square intake provides relatively large cross-section area lateral dimensions small compared bases carburetors enough throat area good Profile Carrier round peg doesnt fit square hole very effectively possible make square filing base carburetor will fit nominal 3/s-inch-wide Fox intake leaves very little material inserting attach screws Ive modified both SuperTigre Perry carbs successfully dont recommend relaxing enjoyable project OS carbs popular Profile Carrier particularly 4BK originally introduced 40 FSR bore OS carburetor base too large allow fit inside Fox intake Bill Bischoffs approach adapting OS 4BK carburetor Fox Combat Special 84 Model Aviation 4Keith Trostle prepares scratch-built F8F Bearcat flight atVought Kingfisher powered K&B 58 engine flown Whittier Narrows Model reminiscent smaller models thatChris Peters Octobers Whittier Narrows contest Model seems once dominated Carrier flyingto based April 1984 MA article Roland Baltes photo relatively easy offers strong installation well very good carburetor both performance ease adjustment Bills solution use sleeve over exterior Fox intake 1/2-inch inside dimension square tube exactly right job finding such tube could challenging Bill solved problem using technique borrowed stolen George Fogerty Almost good hardware store can supply copper pipe couplings 5/s-inch inside diameter straight coupling about inch long Converting round coupling square sleeve can accomplished piece 1/2-inch-square steel bar stock same store Georges method involves filing taper end steel bar applying liberal amount grease hammering coupling working progressively regreasing rod prevent sticking After shaping coupling should heated red heat allowed cool slowly relieve internal stresses caused forming process Bill cut off intake Combat Special just above lower spray bar holes Because crankshaft short carburetor must fit relatively low intake avoid interfering propeller raised areas around holes need ground down until flush sides intake Bill sawed through web front back sides intake allow sleeve fit over intake form good seal base sleeve should also shaped fit round contour crankcase base intake metal-filled epoxy used glue sleeve over intake both strength effective seal Clean parts thoroughly before assembly sure remove excess epoxy inside sleeve carburetor will mounted before epoxy hardens completely Cut off sleeve carburetor will just rest top original intake drill mounting holes sleeve appropriate point Metal-filled epoxy also used form seat carburetor Grease carburetor base screws stuff base carburetor tissue apply epoxy inside corners sleeve insert carburetor invert assembly excess epoxy will stay can get install screws secure carburetor After epoxy completely cured remove carburetor clean up excess epoxy Magnum Pro 36 engine Magnum Pro 36 RC mentioned April column good Profile Carrier candidate said engine priced right good qualityat least far physical appearance apparent parts fit concerned Unfortunately has critical faultit isnt 36 its 37 design displacement engine 365 cubic inches bore 208mm 819 inchesactually measured 820 inches stroke 176mm 693 inches oversize 14 percent seems common affliction among engines designed bigger competitors engine intended displacement-limited competi tion class SuperTigre Xli displaces 113 cubic inches OS. 12 really 13 Webra 32 displaces 323 cubic inches tendency appears to err small side representing engine can outperform accurately described competitors engines same advertised displacement must carefully check actual displacement referring specifications provided engineeasy enough local hobby shop mail no readily apparent parts swaps reduce displacement weight other attributes Magnum Pro 36 engine would seem make very good candidate AMA events requiring 3600 cubic inch maximum displacement size reduced fit rules Dont give up yet 4CL Aerobatics/McMiIIan Continued page 83 salvaging some cylinders become unusable can process applied production engines new used engines everything free flight control line radio control conjunction cylinder-port modification will offered give steadier engine run aerobatics events either unpiped piped todays Schnuerle-ported engines give strong four-cycle four-two break desirable stunt engine Most engines can easily retimed meet criterion Naturally have keen interest stunt engines constantly check various new engines see meet standards require Back late 1960s basic fitting ABC setup developed shop Needless say techniques have lost have developed some new better things along way Critical top performance total stability aluminum piston ABC setup special heat treatment produces setup totally stable requiring no relapping stoning after has run past few years modeling interests have centered childhood beginningsie Old-Timer Free Flight CL Stunt pure ignition engine running old gas n oil fuel Over past years Ive spent quite bit time testing retrofitting retesting various ignition engines like Super Cyclone Anderson Spitfire Orwick O&R etc leaving engines original plan form increased performance retrofitting has gratifying Ohlsson & Rice engines because cylinder permanently attached THE LEADER IN COMPETITION NEW NEW THP DESIGN TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP 66A778 677 7 / 8 67 678 PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION 10T020%INCREASE IN THRUST MFGOFSELECTHARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCH 534 634 72833456 833/,4568 845B6/27 9456677 1045667 106W8W 106EW 114677/778 115W 116EW 1167 124W 125W 1256 1356 1456 1556 164N 16678 August1993 85 Tr PROPELLERS CYCLE SERIES 100 p / jo -s RC PYLON RACING SERIES 500 DIAPITCH 7SN 5N 8/677/8 SERIES 400C 9777 W WIDE BLADE EW EXTRA WIDE N NARROW