Control Line: Navy Carrier

C NAVY CARRIER Richard Perry THE Nats have passed another year having made impact Navy Carrier events truly outstanding performance Dave Wallick Profile Carrier added 25 points Open record George Cox demonstrated low speed flight techniques likely become standard years come Low speeds such 8 10 mph can achieved models having flaps either line slider considerable tip weight both properly designed models suf ficient practice 300-point Profile flight quite possible will probably see within year large number contestants year allowed good sampling equipment showed trends might prove useful designing new airplane Carrier events Definite trends seen engine types throttle systems Class 65% engines used K&B including three top four finishers remainder equally divided among OS HP Webra Supertigre Class II dominant engine 50% Rossi mostly older type few Schnuerles Continued page 120 February 1981 47 Would believethat isa Ringmaster Dick Starkwaved magic wand overone turned beautiful Almhnnitn Nke Uerry lJeneau modeled radial-engine version Blackburn Firebrand Class Blackburn designs have always noted large rudders Dave Rolley photo Ted Edwards flies Profile Guardian designed father model spans 3gV2 has 301 sq wing ares Jim Eubanks flies Corsair Sea Hawks Carrier Society Denver CO Rolley photo Open record 13211 mph Nick huffin puffin whole flight told him couldnt keep up put car Everyone calls Nick 01 Man Second place went James Van Sant Penndel PA 9420 mph FAI five entries Sam Burke Canada 24950 kph Cliff Norman Phila delphia PA took second 23331 kph Ed Gifford New Jersey third 19313 kph going metric Formula 40 seven entries guys flying hard day Cliff Norman Philadelphia PA took first 14303 mph Nick Sher hit 14201 mph second Tom Schaeffer New Jersey did 14068 mph third D Speed lot activity Frank Garzon New York turned 19060 mph Dan Benesck placed second 19020mph Leo Baer third 18920 mph As usual everyone having problems props D Speed models blades would come apart Need use glass props B Speed six entries new 65-ft 3in lines bringing new modelers event First went Les Baer Allentown 19508 George Brown Sr New York turned 17810 mph second George Brown Jr took third 17367 mph Everyone good time lots laughs Thanks letter Les Flash A Open Speed record October 5 1980 Evert Gray Memorial Speed Meet held Fogelsville PA Nick Sher officially clocked 13211 mph national record backup flight 12779 mph power plant Cox modifications Nick Sher Gene Hempel improve bypass breathing engine utilized chrome shaft setup crankshaft ID bored out 200 felt speed quite possible further experimentation pipe length pipe volume fuel head volumes Received letter George Craig Tarpon Springs FL concerning machine Cox cylinder drill press using simple fixture designed will try make some photos fixture discuss neat way machine Cox cylinder later column Brian Fairey Waterloo Canada writes working developing side-exhaust 15 engine Team Racing Brian has done beautiful job designing engine information write Brian Fairey 242 Bell Have Drive Waterloo Ontario Canada N2J 3C6 would like express appreciation modelers have taken time write really enjoy hearing modelers across world Half-A Engine Parts modelers have written find out can locate blank Cox 049 cylinders order make cylinders available modelers have ordered several dozen blank cylinders plus other Cox 049 engine parts also have new case chrome shaft setup information send SASE P&G Metal Shop Gene Hempel 301 North Yale Drive Garland TX 75042 next two Speed columns will cover construct pipe Cox 049 engine Wish Speed fliers Happy Turkey Day Merry Christmas Gene Hempel 301 N Yale Dr Garland TX 75042 CL Carrier/Perry Continued page 47 OS next Webra Supertigre OPS Class II airplanes dominated Guardians 70% Over half Ster ling-kit size others smaller largest model Sturdibuilt Mauler smallest MO-i about 140 sq average size about 190200 sq Class since no kits except originally intended Class II use variety aircraft much greater five Guardians MO-is assorted sizes four Skyraiders Sizes ranged about 115 sq 210 sq wing area Sterling Guardian average about 150160 sq little larger standard few years ago Profile Carrier Supertigre powered 60% models another 15% made up other production engines machine-shop specials K&B OS TWA accounted 25% total specialty engines took four top five places high speed determin ing factor top two least speed over 90 mph OS rest under 84 mph well within Supertigre performance capability specialty engines seemed lack consistency again share incomplete flights airplanes Profile showing two strong trends looking lot better getting bigger three 42 Profile airplanes scale types very close scale proportions dominant model Fairey 120 Model Aviation SIX SHOOTER FUEL PUMP NOW AVAILABLE FOR GASOLINE & DIESEL FUEL EITHER APPROX 6 oz VERSION per revolution$1095 THE ONLY PUMP AVAILABLE HAND CRANKEDFOR USE WITH FOR SAFEDIESEL FUEL RELIABLE USE SEE YOUR DEALER OR DISTRIBUTOR DAVE BROWN PRODUCTS 8534 HUDDLESTON CINCINNATI OHIO 45236 AREA CODE 5131 791 0144 Speartish designed Leroy Cordes fit planform moments Harry Higleys MoHo models averaging around 350 sq wing area maximum 380 very few 300 sq minimum Profile-class models also seem getting heavier maximum 48 oz lightest Guardian Les Pardue weighed 28 oz TWA engine average seemed 34 35 oz Supertigre engines three four ounces heavier specialty engines top seven airplanes averaged just under 38 oz average entries little over 35 oz Navy Carrier Society dinner following Nats competition discussion rules 25 Carrier fliers opinions expressed rather different obtained year ago important decisions reached either unanimous very close Everyone seems resolved inevitability specialty engines concerned about rising cost powerplants limited availability reversal last years survey fliers voted recommend change ball-bearing engines 1982 keeping other engine restrictions change proposal has submitted AMA would combine Class Class II adopt equivalent Class Profile event no engine restrictions set up Junior Senior Profile event no auxiliary surfaces sliders etc stock plain bearing engines CL-82-7 group unanimously opposed such change consensus such radical changes may acceptable local basis national implementation would disastrous Profile bonus points discussed length RichardL Perry 416 Woodhill Drive Golds boro NC 27530 Sea Power/Haught Continued page 50 larger #6 fitting Take note thread failure flood-off fitting will allow engine run until fuel exhausted Repeat engine cut off test several times observe effects engine vibration timer functions well ready flight first flight will have engine run no less two nor three seconds Set power arm stabilizer timer disk -to 1sec delay after engine cut Hook power arm timer hook glide ann anything Set rudder disk 3-sec delay afterstabilizerreleases Hook up rudder timer arm setup will provide instant DT after engine cut giide arm held place Test-run timer ensure adjustments correct Hook up lines again make visual inspection hookups control positions Make rigid rule prior flight Ensure timer fully wound Start engine launch 60- 70-degree angiejust right wind Note climb angie andturn tendency Model should maintain launch angie show slight tendency turn right Observe DT rate descent Correct climb angle adjusting height stab shims Increase height steepen climb vice versa Adjust rudder needed DT too fast lower DT angle slightly Continue 3-sec tests until satisfied climb angle turn tendency satisfied power pattern will safe readjust timer power arm disk stabilizer 3-sec delay after engine cut reduce wing strain speed builds up succes sive flights longer engine run Increase engine run second fly model again Continue observe power pattern engine run increased 1-sec intervals hurry process Make adjustment time keep small attempt transist glide until have attained 7-sec power run may increase delay DT appears putting heavy load wings point should getting good steep climb around 65-70 degrees about three-quarters turn right now ready work transition Adjust DT disk 15 seconds hook up glide arm line DT arm well other lines respective places Watch model closely engine cuts Model should transist smoothly Poor transitions often due improper rudder trimming rudder brought tripped too early will cause right wing go down due kicking tail right results diving turn after engine cut Bad news Late rudder often results stalling Tripping stabilizer too soon results upward pitching stall Releasing stabilizer too late allows model dive Hopefully can get glimpse glide before DT. Remember REVENGER 60-Size Pattern Designed Revenge can sweet new Revenger pattern design can win 65-inch span laminar-flow wing 700 square-inch area helps perform AMA-FAI man euvers new kind smooth ness can read about May 1978 RC Modeler Revenger comes highly prefabricated balsa fuselage assembled sanded Foam wing panels stabilizer presheeted sanded vertical fin Dick Russ rudder presanded shape contest quality balsa Just join wing panels stab add vertical fin Install retracts engine radio mounts cover paint youre ready complete Total weight 81h 8 3/4 lbs Revenge can sweet Revenger. pattern design can win See nearest hobby shop first 4 full line brochure write MODEL MERCHANT 554 E Fronton St. Brownaville TX 73520 no suggested changes current rule agreed upon majority favored rather loose interpretation rule new stands Specific proposals published Com petition Newsletter section October November December 1980 Review submit comments may have NCAC CLCB either directly representatives through AMA HQ Ed note process speeded up Wyou send directly AMA district CLCB member RBM