Control Line: Combat

Control Line COMBAT Charlie Johnson latest Combat goodies Hoffelt Group include carbon-fiber 731/4 prop Rossi 15 plastic fuel-line pinch-off mini-pipe Prices column RECEIVED some very nice products Dick Tyndall aka Virginia Craftsman Inc 348 Argyll Circle Highland Springs VA 23075 Dick sent along tank makes Slow Combat based 6n Fox wedge tank Perfect tank soldered chickenhopper Dick says stock baffle retained Fox tank vent line goes through Perfect tank has -in hole end inside baffled part Fox tank Got tank holds 3 uel should get way through match 2-in long weight 1 ounces Price $1250 tank should mounted e center line needle valve bias mounting keep engine going slightly rich during outside maneuvers -in recommendation engraved stone engine still goes rich outsides runs leaner insides go ahead move tank higher Rear-exhaust engines will probably require bias Actually youre running rear-exhaust engine youve probably figured out eons ago Among other goodies couple head inserts Fox 36 first similar stock Fox insertbut compression better fit other what called double bubble works nitro prob ably 30% Dick says both cut 180 depth cylinder will give around 005 007 head clearance least engine sitting still made 606 1-T6 aluminum thedouble bubble configuration also available Rossi Price inserts $850 come either polished unpolished Also available very much needed tuning Fox insert cylinder shims $100 Sizesare002005010and015 brass ready use Rossi shims will available time print shims absolute necessity get head liner want provided know Id just leave liner shim comes Mark IV Foxes fit head 005 007 head clearance using appropriate shim brass shims will become work-hardened after being crunched down few times dont take engine apart night though use depth micrometer measure deck clearance doesnt mean actual running clearance will within few thousandths What happens play rod bearings wrist pin etc come play allow piston go sailing much farther up bore micrometer said would manufacturers would like hold piston-to-squishband clearance nearzero real world running conditions usually dictate far safer margin like about 015 manufacturers wanted use minimum squishband clearance because say area between part head piston effectively lost combustion process best plan designing head would set up what figure safest clearance say 003 005 make combustion chamber enough volume make maximum power big what shape shapes can get articles motorcycle engines two-strokes volume will arrived lot trial mostly error Youve got compromises worry about like holding plug strength piston crown Some top tuners use light machine oil certain temperature fill combustion chamber top dead center engine sembled keep track number drops oil needed fill chamber tirst plug thread example 95 drops fills engine run detonates violently blows plug obvious answer grind out bigger chamber piston didnt hit head last run probably wont next trial either just leave head clear ance alone Dick will give everything need go really fast put gleam local model engine parts dealers eye Before get too carried away again let put some Virginia Craftsmans other items Rossi 15 venturi front intake 312 340 ID bigger can set needle $850 spray bar needle valve mount positions needle valve parallel below top motor mount made stainless steel uses OS Max 10 FSR needle assembly Spray bar $300 needle mount $200 now something very similar Just before Dick sent other items received Continued page 133 April 1982 63 000 IYIUPU rrarcu w0m0ahLanr5 mu. uuC three sizes Its oi InC chicken-hopper persua sion made Randys Profile tank Perfect No 19 tank soldered hopper Virginia Craftsman also makes Fox 36 head insert Use high-nitro fuel Its made 6061 -T6 aluminum Read column info also comes head shims Slow Combattank Virginia Craftsman Inc uniflow/chicken-hopper design Capacity 3 oz Its 21/2-ln long weighs 1 oz Add OS 10 RC needle valve assemblyto fora remote needle valve setup Anothergoodle Virginia Craftsman Bracket stainless steel holds remote needle other object fuel jet replaces normal needle LOCTITE best less Guaranteed year shelf $498 fluid ounce Have BEST everything things asked Cyanoacrylate instant glues BEST FORMULA tar model crafts wood BEST DISPENSING NOZZLE non-clogging custom design BEST BOTTLE high density opaque best ultra-violet protection BEST SHEIF LIFE 1 year plus BEST GUARANTEE 1 year replacement BEST AVA1LABILITV 3 regional warehouse/sales offices BEST PRICE almost twice much money IL@CTITE CA7czrid CATM Gyanoacrylate instant glues full fluid ounce $A 98 See local dealer Reglonal warehousing sales offices WESTCENTRAL EAST 20134 State Road 310 N 5th Street127 Fair Street Cerritos CA 90701 St Charles IL 60174 Kingston NY 12401 IL@CTITE registered trademark Loctite Corp Matched Performance System TOP PERFORMANCE K&B ENGINES 16 Airplane- 4 Marine KaB FUELSK&B GLOW PLUGS 7 Blends4 choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN K&B SUPER POXY THINNER K&B SUPER FOXY PRIMER K&B SUPER FOXY PAINT KSB MIXING CUPS **** * * * * * ** *** * * * * WANDITTM * PAT PEN * l off Stick Abrasives * ** * *We dry * * * * tone year warranty * *10 ft CORD * *A Keen Machine gives exceptional* *sanding control excellent finish *Model Builder Special md 905 two flat half-round *five 6 grits *Additional Wands Abrasives available ** Add $300 shippingTexas 5% Sales Tax- * *AUDIS ELMAEE Eve No 214 288 5789 *PO Box 266 uite Tesas 75149 * next step join Academy Model Aero nautics AMA Membership gives Official Model Aircraft Regulations enables test skill flying against best world AMA regulations prescribe official flight maneuvers basics plus square loops triangular loops figure eights square eights hourglass four-leaf clover pure one-on-one aerobatics CL Combat challenges skill maneuver intercept moving target Some maneuvers made much easier larger airplane longer lines addition 35 engine stable air plane longer flight time reaction time have entered big league CL flying Learn maneuver Stunter future will give thrill strong pull control handle second flying real plane CL Combat/Johnson Continued page 63 tank Bob Nicks setup very similar Dicks both mounting ie -in bias construction design apparently works very well modelers area Bobs tanks available three sizes sell $1000 3 $2500 3-oz 225-in long 35oz 265-in long 4-oz model 305in long Randys Profile tank used basis design Perfect No 19 soldered hopper Bob also manufac turing foam cores Eagle Slow Combat modeL inquire about products write Bob Nicks 1211 Brookgreen Dr Cary NC 27511 Available Hoffelt Group Aerosport some nifty low-pressure bladder tubing 8 lbs LORE 13 0 IF lilt, EOUIFPEE lItRE I-vOW 10011 AT BRCtOYN 3 MODEL MOTTER 1307 tRROFEND NE RE BROOILYN NA 12121325 9250 Nt LLRLET C4IL BETWEEN E 13 & E 14 5 FROM STATEN VEANLI TAlE VERRIZONO YE BELT FIAT EO3T Y ITLAND RyE EXIT T3 052 4 ROOT ON TO 4 3 BLOCI IL oFORE PEN MON & WED 12 TO 0 TIlES B TN IN 7 10 B RB FRI IJ TO 7 & SAT 10 0 BBDOEOIc5E5NOpLI TMM 434BEVCtN 9 OZ B Mb EFOOX 435BEVCON 9 c2 311 MIN EPOX 4/0BAS M3OEL PROD 10 OZ 0 fIN EPOT9 / 93 437SAY MODEL PROD 10 00 0 MIN EPCRS ITNS 9 43E040 MODEL PROB EWOS OFF POLLER7 TB30 439P14 BLUIT MEATY BOTY 1/ 2 444PICR OLUIT 12 00 ALIPRATIC REO- 401FlEA OLLIIT T CO ALIFOOTI RE 442403 TTOFF SUPER 3 OR REB 2 t0 443NOT OTLIFF SUPER T OR REt 12 004 BR 444OOLBBERO SUPER JET 3 cO OAOE TIME PRONE 0011 ORDER IN 445Z4P SUPER 1 00 440PROTHER MIRIZLE MICRO D4LLCN3 447PRATOER PHENOLIC BALLONS 440EBB MICRO DOsLONS 449LOB PIL/EROLAT 3/4 2 o 00 SPE 450END MIRINO CLIPS 4 CIR 5 00 SPEC IF06 491RODEYPL4 40 1 00 452OOEDYP345 04 0 005 TB0 S SEE OLIR IOEW 101 SPECIAL LIT C/ER 1 0 MON P00NERo AOAILABLE ft CUL TORCILISH DROOL NY MODE MA TER 453AEROTREND BLUE LINE 3 MbOIL 454AERETRENB ERTYFLER1040 145505 MAX 40FOR 4DCWRFFLER 450CE MOO 40oF ABC 497CS MAX 40OF ALS1 0 14 00 45005 MAO IFORWOMLIFFLERIOO aSS0. MOO COFYRAMIIEFLER 4 14 FORFATTER SEE/ICE COLLIS WITO YOURLRBERMAOER SEND ALL OREERS ONE INLLIRE 3, BRCCl LSN S M'BEL MASTE F 1307 OROVESEEB NRA 0r ORCIlI L ALL PRICES -YDEr IC COONSCFFF OF PIlE MCNTR ONLESi ORXCNT SOFFLIE ARE EXR3 101 FREE 101 OPEC lASSLIST AITR CIELERY 'R SEND OE CIRBEFINI. INFCRMATIN ORR N' CUD ALL PEICES IN LOBE 55 C/ISO LISCYJIST MI N NI CRIEE DIS MASTEEsTI 54 OCCEFTEI ES I MSY ADD 55 BACI 1 TCTAL INS lIE CORDII ROF ISOYILN DOll INTERBANI 0 1 -I'NAY'RP 'I ARE RYII ER SOIFTINS 0 ORNOL INO 19OO39.A 4DB 0O.501 -7/. ABC S tEE 2000 010 SC MAX F II 35 011 29 B 0 'OER SIZE 010 ODD F/IRA 4lR lllT CII CONT 110 000 [B CY b/SAL FF10 STIEFINS LOLL MCPIIEI-lICT IT IN CLRRENC OLE ARE FINAL OLLOA TIME 100 PER 'Il/I RECI sSR N. RESIIENT M'ST 000 OFFLII TFLX L95 TNT 33rD WHERE LLIIREI ORFII 1111 JS April 1982 133 MODELMANIA P1*11W SCALE MODELS MUSTANG MILES M-18ZERO DRUINEPIETENPOL COUGARPIPER CUB GIPSY MOTHANDRESON GANAGOBIELACEY M-10 Rubber Powered Balsa end TIssue Kite $595 SPORT MODELS PRAIRIE BIRD KIT $595 BABY ACE$649 ONE NITE 28$695 ONE NITE 16$595 STRINGLESS WONDER$495 PECK ROG$195 RUBBER OR CO-2 POWERED BUIWINO NEEDS PROPS TISSUE RUBBER WINDERS BLADE SHARPEHERS BEARINGS PROP SHAFTS LUBE WASHERS WHEELS FUSE CO-2 MOTORS BOOKS PLANS end MORE ADVENTURE MODELS 92 PONY BLIMP il-FT RIC AIRSHIP 00--~KIT $24950 COMPLETE CATALOG $100 HARD TO FIND ITEMS FOR RUBBER MODELS AND AIRSHIPS Peck-P * 1/3 Stand Off Scale * 92 Wingspan 1510 sq * Weight 19 21 lbs * Fiberglass Cowl Balsa Fuselage * Foam Wing Tail Section * Superior Landing Gear * For Kioritz Quadra etc * Cut Parts Sanded Shape * Full Size Rolled Plans P 0 BOX 2496-MA LA MESA CALIF 92041 PHONE 714 469-6675 714 442-4036 2 PRICE $20995 cttj Fcciic Stcr PO Box 607 So Gallatin Road Madison_TN 37115 868-6811 Sales ice Complete line ROYAL Electronics RIC equipment WARRANTY repairs thing sell Call Ed Venus Brannan Repair Service HO DRY 10 DRY EK LOG ICTROL FUTABA HOBBY SHACK ROYAL pressure $150 per foot molded nylon fuel pinch-off device three $150 very neat Deirin clamploc control horn infinitely adjustable price $175 Send inquiry Hoffelt Group Aerosport PO Box 99774 San Diego CA 92109 Im really cottage industry has sprung up around modeling community Dicks Bobs cases big manufacturers love because use two tanks make can help guys out sending selfaddressed-stamped envelope SASE ask ing information use large legal-sized Ill testing both tanks Buckeye Regionals month well some other pro ducts hope dont crash set carpet fire like certain Chicago area group did last year certainly hope Nats Executive Com mittee decides have first-round-losers bracket Lincoln Nats Combat events such used FAI Combat matter decided time issue MA printed Last year Nats lot us got fly Fast Combat match least wasnt alone thats enough Combat after traveling way anyone else makes specialty parts would like some column space please send whatever have cant say something nice about item wont say anything Charlie Johnson 3716 Ingraham St San Diego CA 92109 CL Aerobatics/Paul Continued page 64 flyable plane what have work terms wing power plant Miscellaneous information late Bob Hunt recently called report fathers Genesis muffler production still going strong mufflers now sand-blasted very pleasing finish mufflers available Jim Hunt JH Design Sales Co P0 Box 599 Saddle Brook NJ 07662-0599 cost $1500 plus $200 postage packing Bob also noted another engine might very suitable Stunt Enya 40X side-exhaust Schnuerle-ported flat ring Some NJ-NY Stunt clan going try out some information should available after snow season over addition Bob has experimenting some carbon fiber tape Dave Brown pro ducts Possible uses construction Ibeam spars front end Stunter 134 Model Aviation THE PEANUT-PEOPLE PRESENT OUTSTANDING BIG SCALE AEROBATICS