Control Line: Scale

Control Line SCALE Bill Boss BACK TO BASICS what predeces sor Dick Byron stated major goal CL Scale column too would like follow same theme time time Dicks last column August 1982 covered briefly several items should considered new Scale builder mentioned engine cooling selection model line sweepback mounting bellcrank conversion RC Scale kit CLthe item would like discuss month RC CL conversion obvious ques tion mount bellcrank RC models area wing would normally mount bellcrank usually reserved installation servos batteries receiver equipment Therefore structure area wing requires considerable modification make suitable Control Line flying addition modification bellcrank mount ing area wing needs strengthening two additional reasons 1 withstand control system pull tests depending models weight can high 80 lbs specific pull test requirements CL Scale models can fouiid AMA rule book under Section 52A CL Precision Scale 2 withstand extra stresses imposed landing gear its mounting during takeoff landing CL modelwhich considerably different RC version During landing RC model landing gear has stresses imposed upon usually straightahead course During CL model landing gear stressed model wanting Continued page 148 KIT PLY OUBLERS j9ING EO$E BALSA BRACE ________________S LG_MOUNTI/B PLY BRACE ____MAP$PAR OF MAIN SPAR 4 W4W3wa V8 PLY RIBS I/B PLY1 BELLCRANK PLATFORM SKETCH 3/8 FUSELAGE -MVUNTSHAPE TO TOP OF W2 SEE SKETCHB BR ACE Bill has lots words column teli convert Top Flit ftC Sca4e kit litto CL modeland refers ttuia sketch lot shows typical structute modifications December 1982 61 info RC-to-CL conversion view looking foward RCkitscanbetumedintofine-flylngCLpianes PeteBianchiniYonkers Anorner lop I-lute HU-toL conversion P-47D Ed VVii NY made fine Sport Scale P-51 B Top Flite kit Model weighs Owski Dougiaston NY Model 60-powered weighs about 814 lb about7 lb ispoweredbyanEnya60doeswingoversandlevelflightst features operating flaps Rhom air-actuated retractable landing 450 eievatlon easily Color/markings kit gear excellent flier does very realistic takeoffs landings leading dealers availebie ORDER DIRECT Add 10% Lpostage handling Calif residents add 6% tax Check oi Cod accepted Supply card number date VISA MASTER CARD m m recently August 1982 ModelAujation Wingmaster plank-wing Half-A flaps claims very good flier has pictures prove want some information Half-A planes fly well try Three Fun article Dick Sarpolus some solid-balsa-winged profile ships good fliers Model Airplane News June 1979 F-S Freedom Fighter Dick Byron Flying Models April 1981 p 30 very good flier has trike landing gear builtup fuselage all-time favorite planes Pinto Dick Mathis full-fuselage Half-A along classic lines appeared Flying Models December 1972 Both FM planes available through Carstens plan service Im talking about Half-As Joe Klause sent latest 049 creation brain child Bill Netzeband little screamer comes either right-hand-exhaust rear-exhaust left-hand-exhaust its Schnuerle ported can tell little engine will pull Half-A around circle through maneuvers As usual machining Joe work art youre really serious about Half-A have got get movers priced 55995 little steep Half-A want top-of-the-line per formance going have pay can tell well worth price performance get years Nationals running little rich official flight Half-A engine pulled miniature Olympic right through pattern Naturally practice flight just before perfect engine setting Bob Whiteley will attest interested write Joe Kustom Krafts manship PO Box 2699 Laguna Hills CA 92653 information Stunt orPA MPA Contact Wynn Paul 1640 Maywick Dr Lexington KY 40504 CL Combat/Johnson Continued page 59 good bump can sure have good chance one-flip start warmed-up engine will start run better prone floodingso go easy priming cold engine will start eventually hot flooded engine will start feels like situations need really smack prop over Ive seen fliers use prime bottle very high percentage oil help give good piston seal loose engines have poured good deal 3 Oil stubborn engines myself Additives such igniter propylene oxide change starting running characteristics fuels trouble Ucon 731 trying get hot restarts because caused engine either want run backwards oriust pop back forth Changing oil cured problem just combinations factors volved almost impossible predict exactly engine will react Just aware part secret engine starting having right fuel tank works under field conditions As change fuels may need change brand heat range glow plugs too An assortment fuels plugs shims gaskets should keep testing monthsand just think much starting practice youll get Charlie Johnson 3716 Ingraham St San Diego CA 92109 Higher compression increases power output increasing efficiency engine also reduces life glow plugs presents some obvious disadvantages event de mands plug survive high-speed portion flight less intact Fox RC plug has excellent reputation element life seal life OPS RC 300 plug also seems have very good reputation far element durability concerned However price about three times Fox although user reports indicate can last through multiple runs damage engines regularly require new plug after run months photos cross section throughout country Bill Boss photos Northeast first section quite some time has always lot activity region first photos Ive received good enough printed photos send great seeing what type equipment being used various areas Ill print suitable 5 x 7 B&W glossy desirablelighter photos reproduce better smile Herb Patricks face result August 22 record performance Profile have time photo Ill gather information later column Well done Herb Richard L Perry 416 Woodhill Dr Golds boro NC 27530 CL Scale/Boss Continued page 61 go straight ahead same time confined flying wires circular path thus putting extreme sideways stress landing gear its mount accompanying Sketches B show modifications several Scale-modeling friends have used various RC kits sketches based modifying Top Flite series RC Sport Scale models same basic modification can applied RC models using built-up wing construction Sketch shows overall layout center section wing Sketch B shows cross section main spars looking atthe wing trailing edge viewpoint modification started making plywood ribs W2 W3 W4 using balsa kit ribs templates new ribs com Continued page 150 148 Model Aviation narrow aesign manmuold fit scsi e alrcratt such Thre tilt tubes suit anymodgi cowlsand CESSNA 150 engine positionTwo exhaust tubes toSAngled exhaust tubee exit OSelect tail pipe removeallow maximum exhaust cowling OWorm drive mounting stra others II desired~7remosmi lass heating OTail pipe extensioEta clam 05mm compact easy toTWO SIZESmounting hardware inciud attach -Three SI OTali pipe extension includedEM-40.. Ali mounting hardware1500 clamps screws inludedEM4051650II239i 29-401 4580 1 90.91 XTHREE SIZES45-80 EM109.19. 1195EM-S1625 EM229-40. 1295EM-Se. EM-34580.. 1430EMSS i79 CL Navy Carrier/Perry Con fin ued page 60 1/16x16x48$359 1/8x16x48p419 3/16x16x48p598 1/4x16x48p649 ABS PLASTIC COATE FOAMBOARD TOTALLY FUELPROO USED ON ROAMIN RHOMBUS SEPT RCM MIN ORDER 3 SHEETS ANY MIX e FREE HOW TO MANUAL $300 SHIPPING ADD 7% CATALOG ONLY $200 SEE YOUR DEALER OR ORDER DIRECT 1325 MILLERSPORT HWY L\[L31IIJ[LUhTBUFFALO NY 14221 716-634-4042 pleted wing halves can constructed directed kit instructions Join completed halves doingso leave out center rib kit rib #1 sure add -in plywood brace both sides upper main spar leading trailing edge balsa braces shown Sketch balsa braces made square stock should shaped fit leading trailing edges properly Referring Sketch B install Ys-in square 6-in long balsa bellcrank platform supports ribs W2 sure supports rest lower main spar Add -in balsa lower main sparjoint brace atthis time glue joints firm wing can handled take measurements between leading trailing edge braces between ribs W2 measurements bellcrank platform made -in plywood Cut out platform install shown sketches platform place ki-in fuselage mounts can made installed Once again using balsa kit rib W2 template shape two pieces s-in balsa sheet outline W2 Determine height bellcrank platform top installed ply W2 rib cut new fuselage mount accord ingly Length mountcan either shown Sketch can full length W2 rib Notch fuselage mount upper main spar install should bring us point mounting bellcrank question often asked What proper location bellcrank mounting am sure asked several Scale builders answers might vary greatly would based taught some past experience have seen have told about bellcranks have mounted front behind center gravity CG no apparent ill affects flight performance appears proper balancing coupled rudder engine offset keep line tension during flight tends make bellcrank placement less critical thing dont want have flying lines emerge wing line guide ahead bellcrank mounting point safe side would always good practice mount bellcrank slightly behind CG point have lines swept back couple degrees point bellcrank has mounted hope presentation RC kit con version will prompt some may have fence about trying hand CL Scale give try Scale data source Aero Publishers Inc 329W Ho5iY5I5rAwAYHOiiYHT5EAWAyHOiiY5IE5WAY5OiiyHTDEAWAy FAMOUS BRITiSH DIESELS AEROMODELLER PLANS CATALOG-DIESEL HANDBOOK pp HOBBY HIDEWAYDELAVANJL 309 244-7389 61734 HOiiYSI5EAWAYI-I5BIYHI5EAWAYHOiBYHI5EAWAYHOSiYHI5EAW 1 50 Model Aviation SPARES FOR M/E PAW D/C 2nd EDITION RAS STIK @51 Wingspan- 19-40 Engine Foam Wing- Balsa Fuse EasV Picture Instructions 0 Send Money Order-We Pay UPS 111 Res add $2 00 Tax Dealer Inquiries Invited GT MODELS Ph 217-893-4136 PG Box 869 Rantoul III 61866 Lu-JU1 LONLjIH 1U CO-102 FLYBABY 1450 SEE YOUR DEALER FIRST OR ORDER DIRECT ADO SIOO FOR POSTAGE & HANDUNG HUNT MODELS OX 21B EL MN 55325 Aviation Road Fallbrook CA 92028 has avail able new series books called Detail Scale Series books softbound contain 73 pages chock full Scale builders details moderately priced $695 majority subjects series jet aircraft include F4 Phantom II Part II F-16 B Fighting Falcon F-Ill Aardvark F-5E F Tiger II F- 18 Hornet F-I 4A Tomcat F 105 Thunderchief two two-part books B- 17 Flying Fortress B-29 Superfortress books emphasize details generally wanted Scale modelers such cockpit interiors landing gear armament wheel wells avionics five-view scale drawings series books true Scale modeler should find extremely worthwhile Send items CL Scale Bill Boss 77-06 269 St New Hide Park NY 11040 LiIQuickie/Ballard Continued page 63 choice has proven compe titive standard Nelson 370 venturi recently introduced racing head capable outstanding performance Parts easily ob AT LAST LETE HANDBOOK ON RC HELICOPTERS Well-Known American Author Flier FOR THE AVERAGE MODELLER THIS IS THE FIRST COMPLETE HANDBOOK ON THE SUBJECT TO BE PUBLISHED IN THE USA IT COVERS THOROUGHLY HIstory 01 RC Helicopters Basic Theory Flight Descriptions Different Types Models Past Present Mechanical Design Operation Fixed Pitch Collective Pitch Bell/Hiller Mix etc Install Set Up Controls r Fly Forward Aerobatics Several Reference Sections Control Rods Fittings Metric vs American Threads Pictorial IllustratIons Helicopter Parts Pieces Publication Date mber 1982 PRE-PUBLICATION PRICE 5 AVAILABLE AT YOUR LOCAL HOBBY STORE NATIONWIDE ORDER YOUR COPIES NOW 23961 CRAFTSMAN RD CALABASAS CALIFORNIA 91302 213 9920195 SCALE DOCUMENTATIONCUSTOM FOAM WINGS d TAILS SCALt DRAWINGSPHOTOS BOOKLtTSCUSTOM SAILPLANE WINGSd TAILS LA MODtL PLANSSPRAY ADHESIVES 1982ZnK.LFIBERGLASS FUSELAGES AIRPLANE CATALOGS $200HI STARTS REPLA-TECH iThAdlONALBALSA d PLYWOOD 48900 MC KENZIE HIMSEND 5O# d IOSASE FOR INFO VIDA OREGON 97486ESSB0X437LEMONTPA 16851 tamed Kustom Kraftsmanship PO Box 2699 Laguna Hills CA 92653 OPS 15 also good possibility summer 1981 saw appearance new Rossi 15 larger case Bob Oge used retimed early prototype engine place second 1981 Nats initial shake down engine showed larger diameter crankshaft heavy rod positive improve ments Unfortunately CL Racing enthusiasts crankshaft timing found 72-75 degrees ATC closing side produced erratic performance silver-soldering crankshaft port adjusting closing side timing 62-65 degrees engine gains rpm runs extremely steady 250 venturi included should replaced 320-350 best performance Generally Rossi #3 #4 head drilled tapped standard glow plug will produce excellent power plug life allowing 010-013 head-to-piston clearance Rossi ABC liner/piston apoears perform FARMAItI I1 MUbUUIIU flue GENTLEMANS PLANE Veto easy budding 0 Deligntlul gent e uiSiOfl air No sting Mosguitosll PLANS 2 SIZES Fall ni. Itishlydeteiled GENTLE GiANT itOAl QUADRA $2400 GENTLE LADY AOl 40-Ag 4-cycle toin $1700 Othet superb giant-scale plans size 9 FOKKER DVIII 2-4 Ca in$2500 9 PT-iS Ooedre oe Kiorito $2800 9 PIPER [-4 Militey J3 cab OaedeS2000 send neno cheek Etans sent tolled UPs POSTPAID money orde toteigs otders add doSs tot a, mail TAYLOR-CRAFT bonn latge sash tot StoCItuten nt LEE TAYLOR all Tayiocrah plans Oltetings 216 Willow AnenueComing sonn Groeteran Tigntll Roceodle CA 95678A- yatgc Kachinaii ************** **** ********* * * * WANDITTM * *,ee * Lilt- yost sarranty,, * *lO ft CORD J *Wet Dry * Stick Abrasives * *A Keyn Macsine gloes encEplIxoal- *sandogControl excellent finish * * 89-95tastc mcI 1 flat Wnd 1 *of 6 grits *1 O8-~tuilder Specal pcI 2 flat t hull*round smOg 5 cal-h Il o grub *1 29-5Deluxe [cds 3 flat 2 nalf *round woods hull clods *tO caig S dttts * *Additional Woods Abras ue axa able* *SAn local Sohby shop * *ADD IS EIMORE Lop No 214 288 5789 * On 266 uIte Texas 75146 December 1982 151 Whats aN Its authors rig determin ing intake openinguses dial indicator head degree wheel shaft con junction pointer lug uosn 01 snese tanKs work well upper Dons can bought lower made brass shim stock lower tank doesnt require recessing fuselage Solve Sanding Problems SPEED STIX Disposable Sanding Tools Inconvenient Hard-to-Sand Spotsl S Use Wet Dry 03 Sanding Grades 100 120 160 $485 Regular SPEED STIX 9 Stix 3 grade 1/4 3/8 1/2 dlam $295 Mini SPEED STIX Set 6 1/8 3/16 1/4 dtam 120 & 180 Orders PostpaId Order Direct Precision Sanding Tools 2930 Skyview Ave Pueblo CO 81008 Eve Phone 303 542-6200