NO OCR TEXT NO OCR TEXT days standards can speculate what provocative idea must have seemed 35 years ago Other CL subjects mentioned F-86 Sabre fitted Dyna Jet fourengined Consolidated B-24 Cal did accom panying cover illustrations both planes originally appeared American Modeler Also shown Blunderbus October 1953 issue Air Trails forerunner American Modeler Blunderbus Free Flight cutie de signed around 1/2A engines just introduced time simple model embellished Cals artwork form isometric drawing wire cabane system parasol Blunderbus spotlighted several years ago yet another magazine resur rected RC sport plane Cal fact himself no stranger RC airplanes Se lected Annual single-channel K&B 13-powered Monocoupe 90 optional trike gear no less Janu ary 1955 issue other examples expertise RC abound Cal designed Wonderwings bipe Aeronca Champ two-foot scale Fokker D-8 Sopwith Bipe latter very earliest Giant Scale models interest RC extended model boats well publishing such di verse things surface submarine bunker boat missile ship collabo ration Frank Lashek some thing pioneer Annual spotlighted Cals Maverick unlimited hydro arti cle included line drawings construc tion well charcoal illustration boat running across pond opera tor thumbing merrily away singlechannel transmitter Other artworks featured An nual Meyers Little Toot pro file Little Toni both like F-86 Sabre Consolidated B-24 paired cover illustrations origi nal issues Cal earned immense distinction illus trator vivid artwork added singular dimension construction articles equaled few others either before since brilliant use subtle color coupled incredible accuracy novel way expressing movement has sel dom duplicated Cals cutaway per spective drawings compare favorably late Hank Clark cover art adorned faces innumerable maga zines notably American Aircraft Modeler 26 Model Aviation alternative power uoc iriu d Davis Dieselised 05 iu model small enough held inverted easily improved starting diesel engine swings large prop its size its torque makes Sportwagon ideal combination Flying Models otten swapped construction articles British modeling publications time cover annual plans books Cal Smith starting ignition engine original Sportwagon FUAoved super running engine tiuu perhaps bit too much such light model Sportwagon ca pable steep climbs half throttle elevators built integraiiy witn rudder pushrod passes through slot stab cut out hinged Mild aerobat fuselage top Small control horns should ics can done clevis connected used give rudder plenty throw bottom elevator horn Lett Uoc relers mo mis memnou urn grabber has used several designsproblems certainly makes clean wing mourn wirnuxtra effort Right Ace Bantam Midget servos 250 mAh batttry md Silver Seven receiver fit nicely fuselage Note wing dowel detail CAL SMITHS SPOR1WAGON DEVELOPED FOR R/C BY DR DBMATHEWS 3/16 PLY GRABBER 1/16 BALSA RIBS 3/16 SQ BALSA FRE 1/i SQ SQ BALSA FPE 1/1 x 3/16 BALSA 5156 STRINGEBS 1/3 x 1/2 BALSA SPAB \\ 8D1A I11A 3/16 x IA 3/32 PLY 3/16 PLY 2 3/16 SQ 1/A x 1/2 IL 3/16 x 3/32 SPABS l/I6SQBALSASPPdI 2 Its beauty like keeps selling translucent coverings such gorgeous ar rangement sticks could bear hide structure typical of Cals de signs provides rugged strength penalty excessive weight Doc decided modify original symmetrical airfoil stab easier-to-build flat-bottom section Among diverse cover subjects B-57s P-47s Fokker D-8 Goodyear rac ers missile cruiser X-15 Unlim fin rudder constructed lami nating strips balsa soaked ammonia water make flexible Spreading phatic resin Elmers glue along seams bonds laminations formed plans around piece foam board ited Hydro Sopwith Pups Stitts Playboy Glenn Curtiss racing Barney Oldfields old Number 99 action flight settings incredible beauty often companion model design article same issue magazine Although Cal Smith gave countless hours pleasurable building reading Im no way authority life character remarkably accomplished man Fellow modeler Bill Winter other hand knew Cal well fact Bill Cals earliest influential mentors Bill Cal Boys Bills eulogy former pupil lifelong friend October 1964 issue Model Airplane News have suffered inestimable loss almost long can remem ber source numberless de nose made %-in balsa sheeting carved sanded aesthetic shape Cals artistic eye originally provided Note bottom support piece windshield S/lB 3/32 BALSA SPARS TOP ORLY 3/lA BALSA SHEET /iII 3/1655 BALSA SPARS TOP 6 BOTTOM I/B I/2 BALSA 3PM BOTTOM ORLY 3116 BALSA SHEET \ S/lA BALSASTAB CENTERSLOT FOR FILLSETIOH RIBPINK va BALSA ~4tzEI~ TYPICAL HINSEfr~I 1/16 BALSA SHEET TOP B BOTTOM WING TILT /IA BAL~L FILL -ELEVAT0R4 3/IA PILL LAM PARS X-SECT STAB TIP THREE 3/IA 3/B BALSA DOWEL I/B 3/IA1 BALSAGRABBER 1/64 PLYWINS FRAMES/IA DO X-SECTINNER FRAME 1/B S/B V1EFILL LOOBINS FORWARD F-3 -SIS 91219 THS BU REAR WING MOUII 3/IA PLY ETAIL I1SO 5 BALSA 1/B SIA MUSIC WIRE LANDING GEAR DETAILBOTi 1/B 3125436 signs articles illustrations cover paint ings box wraps books helped make hobby others enjoyable light us saw re member him Cals versatility however went beyond things always surprised constant excursions other things instant au thentic expert exhibited typical interest thing around himhe expert scuba diving spearfishing ice boating wonderfully self-illustrated books equaled surpassed what gone before fields first recollection Cal goes back 1945 aviation editor met him through MAN cover artist Jo Kotula Smitty just out Air Force during WW H participated prepa ration flying safety manuals could ask man anything tackled it done perfection drew Smog Hog plans wrote getting-started article painted cover did how-to28 Model Aviation Full-Size Plans Available. See Page 172 SO SA IS TSP SflOM 3/INI/2 3/B BALSA SA I/4I/2 BALSA LEADING EDGE 1/4 BALSA BALSA TILT WITH 26WING TILTWING PLAN TOP VIEW 3/IN 55 BALSA TOP ONLY 3/16 BALSA GADGETS - NGTIH 3/16 BALSAGTA RIBSHARSWODD-SHhE 3 EDGEI/IN BALSATO YE STOCKS/IN PLY _________________________MOTOR MOUNT 3LAMSqF V16 3/IN BALSA F-2 liltILFIREWALL E4 3/165/BS/RSO ALSABASSWOODLITE PLYTYPICAL 3/4SERVO RAILSERVO OCKF-SA/7 3/B BALSA SHEET COWL CHEEKSF4 DOWELI/B 3/16 BALSA 015 CLEAR1/64 PLYSIDE STRINGERS WINDSCREENS1/4 1/2 SPRUCE WITh PLASTICFRAMEB 32 NYLON BOLT INTO DIG DH-219 BLOCK-UNDER 3/32 BALSA SHEETSCRAP FILL 3/323/16 S/B/006 CLEAR//B LSA3/16 50 BALSA SCRAP /WINDOWS/PR ME SHEET FILL -I--- TEETFILL--1/ii AL BRAIN PULTjI~/_ IOTOIGP3 NEp4pF-NF F-N 3/IN BALSAI/B 3/16 BALSA FILL / YE PLY SCRAP BALSA/SERVO RAILS COHERING SUPPORTII/B 5116SIDE MUSIC WIREFUSELAGEVIEW THIN PLY OR 2-1/2 5116BALSA PAIRING WHEELSIAPTIONALI -S/32 BALSA SHEET RIB 3/32 BALSA TIP RIBS ARE SET ON TOP OF REAR SPAR-PALL OTHER SPARS DOWN ONTO TIP __- __ II __ 11IIll ItIll1 _____ II r iii ________ ____l'i ir I/I BALSA T E STOCKWING TIP DETAIL I3/16 BALSA SHEETSANS AFTER ASSEMBLY 5/16 50 BALSA F- 7 3/16 BALSA SHEET___________________ 015 CLEAR PLASTIC WINDSCREEN PAT 5/IN BALSA SHEET FILL STABILIZER MOUNT 3/16 SO BALSK S/IN 3/B 3/16 BALSABALSA S AD SET 3/16 50/ BALSA / FIN I/B S/IN~BALSA S/IN BALSA SHY THREE JAMINTONS OF 1/16 3/16 BBLSA FORMED DEFLE CT IONS RUDDER I/2LB B ELEVI/ZUBD RuDRND DIG SHORT PUSHNOD EDIT RIGHT SIDE I/IN DIA MWNO MODEL AVIATION CAL SMIThS SPORT WAGON 3/16 BALSA SHEET FROM FLYING MODELS AUG 1948 DEVELOPED FOR R/C BY DR 0 9 MATHEWS TRACING BY JOE DEMARCO do-it sketch model book fullcolor illustration Colliers hard cover work scholarly book world plastic kit box wrapthe result above criticism' recently letter sent response photos Sportwagon Bill put incisively Cal Smith God de stroyed mold History Sportwagon Bill Winter re calls sitting Cals home evening said Cal ought de sign sexy little Free Flight Cal took bait published result Flying Models magazine during stint technical editor late Forties Certain models linger ones mind seem ingly forever often submerged sub conscious just awaiting chance burst back awareness again Sportwagon case point Although planes 1948 Flying Models debut im pressed enormously its distinctive attractive appearance point career Id lost interest Free Flight transferred enthusiasm Control Line obviously attraction held never got around building Sportwagon original plans still wasnt about let go August 1948 Flying Models featured Cals construc tion article magazine carted over country us 1977 British friend Ray Hull sent magazine collection Included incredibly interesting batch British mags 1949 edition Model Plans An nual serieswith black-and-white photo Cal Smith starting Sportwagon cover Inside reprint Flying Models articles appears British Model Aviation series American magazine Flying Models often crosspublished others designs same Annual fact also contained Walt Schro ders Jersey Javelin 1949 British publication turned out catalyst needed Out subcon scious Sportwagon tumbled right away came inspiration adding RC sist Cal alive today thought might well redesign sexy little Free Flight RC sport didnt self try make everything Cal would have wanted hope Ive achieved objective first impulse enlarge 54-in prototype reconsidered stayed Cals original wingspan dimension Cals classic force-moment arrangement sport Free Flight works wonderfully RC conversion 61 aspect ratio 1 per ft span dihedral 45% tail mo ment arm 33% tail area 7% fin area add up delightful model Other pertinent design factors Underpower model using power loading 150 200 oz per cu engine Build wing loading 7 11 oz per sq ft area Use tough covering undercarriage Somehow parameters seem have etched subcon scious right along Sportwagon else explain appear over April 1988 29 TA CENTER SECT RIB 5/32 PLY JOINER 3/IN PLY GRABBER F-S / TAPER I/B SO BALSA BOTTOM STRINGERS SPECIFICATIONS ENGINEID TO 15 WEIGHT3D OZ WING CHORD9-1/4 WING SPAN 54 WING AREA 330 SOFT WING IAAflIfl /SSFT 30 Model Aviation over again own designs Cal powered prototype Bantam 19 ignition also known use Forster 29 British Model Plans Annual suggested using E D Comp Spe cial Mills 24 Ailbon 28 K Vulture Ive found diesel engine roughly 15 Cu capacity fits Cals inten tions closely Forster 29 can envision RC Sportwagon having appeal several different groups mod elers slowly growing numbers Nos talgia RC enthusiasts would certainly interested Old-timers share rever ence original Sportwagon would want try RC version too Maybe modeler whos just shopping really sexy-looking sport RC would also find filled bill Whoever whatever reason build yourself Sportwagon Construction Cyanoacrylate CyA primary adhesive used throughout Ali phatic resin Sig Bond etc used lam inate various outlines five-minute epoxy adhere plywood parts wood balsa unless otherwise speci fied use medium-weight C grain Strip wood should clear knots also medium weight customary Cals models structure strong side same time well stressed relatively easy fabricate Wing Develop master plywood rib tem plate tracing onto wood placing car bon paper between latter underside plans Use pattern stack cut ribs Alternatively cut out knife using metal template Wing tip segments constructed same way should preassembled before installation Notch trailing edge stock razor saw better yet blade reversed jigsaw Taper rear spar before assembly order have reference point tip Build center section integrally left panel making sure ribs ver tical contrast tilt outboard rib has set jig Place scraps 346-in sheet under leading edge assembly building sur face Lay wings down working spars forward making sure ribs positioned properly tip ribs can trimmed master ribs slic ing bottom center section leading edge filler sheet best left uncontoured until wing panels have joined Obviously out board filler should cut match cline ribs After sanding dihedral bevel block against table face join panels using five-minute epoxy clothespins Custom fit ply dihedral brace wing cutting slot through ribs against spar faces Hacksaw blades taped together work well Slide Continued page 128 PRECISION MODEL PRODUCTS 4ff pM Made USA BARSTOCK Retail Approx Pert No SizePrice Weight TT-1 50-B. 1-1/2$1395. 058 oz TT-1 75-B . 1-3/41495 095 oz TT-200-B .21595. 100 TT-225-B 41895. 155 TT-226-B 4 FAll1895. 145 -2B. 2-1/21895. 188 TT-251-B 2 FAll2095. 166 oz TT-275-B. 2-3/42295 215 TT-276-B. 2-3/4 FAll2495 200 TT-300-B 32695 258 os TT-301-B 3 FAIl2895 247 oz TT-325-B 43695. 340 az 3 Pieces Cone Back Plate Retainer Screw Nate 3 4 Blade Spinners Available Sizes Add $300 Per Spinner Available Sizes Add $300 Per Spinner PROP NuT AflAPTOR Retell Approx Pert No SizePrice Weight TT-140-A. 1/4-28$495 061 TT-147-A 1/4-28/7mm 495 061 oz TT-610-A mm495. 063az TT-710-A mm495. 082os fl-51 6-A 5/16-24495. 076 fl-810-A mm495. 076oz TT-825-A. 8 xl 25mm.. 495. 075 os TT-375-A. 3/8-24595 Os lT-125-A l2Smm. 595. 1lSos 3 Piece Set Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 FOAM WING CORES SEND 150 FOR DESCRIPTIVE PRODUCT CATALOG u.umuummmuinuummuuuuuuuuuua U FU U U PRECISION MADE EXPANDED BEAD POLYSTYRENE REPLACEMENT WING & STAB CORES FOR ALL POPULAR R/C AIRCRAFt OVER 250 DIFFERENT WINGS U IN STOCK FOR IMMEDIATE DELI VERK SO IF FAVORITE BIRD THAT NEEDS WING CALL ORI I IU ___________________________ ii U U U U U IUUEEEEEUUUEEUUUUUUUUUUUEUUUUUUUUEUEEUEUI WYiV MF6 WING MFG PO BOX 33 CRYSTAL LAKE IL 60014 beck suggest two D-cells would give few spurts amperage poop out also phoned explain problemand backed up sending Eveready 15-volt battery couldnt obtain elsewhere battery hard find can bet sent letter Union Carbide Corp ask no #1S6 1-volt batteries hobby shopsand no advertis ing modeling magazines Its item surely need second problem Cox Black Widow 049 Murphy claimed screw just vanished held backplate fuel tank en gine No magnet could find sent Cox Hobbies letter requesting screw Black Widow 049 enclosed $100 cash Several weeks later received current catalog price list packet screws parts 049 overhaul kit retailing $105 No payment due Golly old veterans heart goes out two American manufacturers gratitude help gave freely Lee Hoffman Banning CA two firms representative aeromodeling field really strive high level customer satisfac tion Maybe thats because run modelers modelers us con sumers really quite lucky know have quality things can pur chase make modeling easier and/or enjoyable Sportwagon/Mathews Continued page 30 ply blank slot mark oufline pencil Cut out epoxy place install grabber time Carve sand leading edge tips trailing edge contour Although Cal covered leading edge 2 sheeting obvious reasons doesnt suit present purposes Fuselage Standard box-type construction employed frame built over other using scraps masking tape prevent sticking substituted mod ern radial mount breakaway engine beams prototype Its good idea assemble form ers bulkheads fuselage frames curing Again use carbon paper build jig frames #3 #4 directly over drawings Remove frames pop apart using table knife Sand bevel tail posts place right frame over drawing Trial fit adjust formers necessary fit snugly frame tach CyA making sure right angles planes Install left frame onto formers checking alignment triangle etc prefer leave box building sur face jacking up tail post exactly one-half fuselage width Glue left frame place cut crosspieces pairs using top view guide An alternative method would involve re moving box setting directly over top view constructing either case sure tail post center midline stab seat level Bend landing gear over drawing using large vise-grip pliers bench vise cutoff wheel also useful attempt rebend mistake just toss start over unit held #3 nylon clips Its wise predrill #3 before installing gear Attach bottom formers stringers Moisten top sheeting ammonia water pull down over firewall former side stringers taper rear filler strips around win dows taper up wing seat CyA 1/64 ply window frames stringer filler strips Sheet plastic windows will attached inside frames after fuselage has covered makes very neat easily installed window treatment Attach wing saddle fillers dowel five-minute epoxy Make sure dowel center runs level along both planes Joining wing fuselage Hold 128 Model Aviation WHEN USING THE CK-3 ONLY THE SIZE IS DIFFERENT win Engine Control Normal single throttle stick control over both engines Absolute engine synchronization advanced throttle settings via small adjustments RUDDER trim Realistic outboard engine advancement during turns taxi throttle settings via RUDDER control Completely realistic 1141 scale engine control during taxz synchronization flight finally available Works radio system digital CMOS No tuned circuits Installation instructions included -NOT simple coupling device Advancing engine does NOT retard other engine Order CK-3 just $4995 S&H C & K Ventures / 1807 Park / Laramie WY / 82070 Phone 307-745-7557 Order 24 hours day Please call write complete information add just device dream RC twin quest absolute realism onel 'grabber against ply brace clamps slide wing over front dowel Adjust center section wing parallel fuselage sides Use piece heavy string has pinned tail post check wing exactly right angles fuselage Measure common point both tips tail post adjusting until exactly Mark point grabber epoxy joiner Return wing seat recheck string Using drill size corresponding nylon bolt drill down through hardwood trail ing edge underlying hardwood block Screw bolt pre-tapped Sig block pull up against hardwood wing saddle hit CyA tapped hole bolt could used instead hardwood rear saddle would probably need thicker stock Initially tried Cals rubberband wing hold-on technique unable keep wing sliding rear Perhaps single dowel running forward have grabber dowel would work Empennage original Sportwagon used symmetrical stab section con structing joining fuselage used flat-bottom section sake simplicity also chose flat fin-rudder sembly airfoil Make laminated outlines moisten ing strips balsa ammonia water spreading aliphatic resin along seams laminations formed either over plans using pins along perime ter over foam board patterns horizontal stabilizer ribs con structed much same manner wing ribs Lay sheet center section down add spars ribs leading trailing edges Use straightedge mark cut %-in slots ribs two hinge line spars CyA place trim edges tips install Use sanding block final contouring hinge spars match ribs Add top center section sheeting al lowing fin slot After final sanding sep arate elevator portion cut slots hinges install perma nently Since elevator horn screw plate will under covering CyA Lite Ply base fin construction selfexplanatory Installing hardware decided verted mounting engine can also installed either upright sidewinder position Tank position will vary accordingly used small 2-oz Per fect Brand metal tank replumbed rear pickup top vent small Sullivan RC 130 Model Aviation Ultimate Model 310 courtesy Jim Ifatt/Seneca II courtesy C & K Ventures Last An Automatic Full-Feathering Adjustable Pitch Propeller An exclusive 4patented mechanism lets adjust pitch 8-40 optimum perfor mance blades automa tically feather motor stops reduce drag give much Recommended 72-80 motor gliders similar models wing AZV loads up 14 ozI sq ft 05 direct drive systems e shaft Stock No MAO8XXE $2495 Suggested Retail Available Through Leading Distributors WINDSOR PROPELLER CO 384 Tesconl Ct Santa Rosa CA 95401 tank will also fit throttle system used has throttle cable enclosed nylon rod battery should placed alongside tank far forward possible Du-Bro switch mount positioned scrap filler model used 14 x 14-in balsa pushrods EZ connectors servo arm other threaded wire clevis Nylon rods could also used rudder unit does exit top fuselage Sportwagon must balance shown plans came out needing ballast however other engine-ALSO AERONCA Li6B/CHAI84 IN VULT BT-13 VALIANT 84 IN SPAN and-equipment combinations may require adding ballast nose tail Continued page 132 Safe Flying No Accident 4 Fokker D-VII VK Model Aircraft PO Box 3007 Aurora IL 60505 312-357-1883 F iA SCAlE SPT SCALE AONCA L3/EIThlDEE 105 IN 2 CYClE 90-13 /1 4 CYClE 12-18 ROLIiD PLAN SETS------- $20 EACH FIBERGLASS CCWIS--------- 20 EACH ADD 120SHPDlGNYS ADD 8QTAX AERO PLANS N PARTS PO BOX 939 OIEAN NY 14760 716 372 / April 1988 131 GATOR RIC PRODUCTS An new Tiger Tail 120 four strokes piped 60 two strokes beautiful performer competition just showing offl balsa kit machined wood parts complete hardware package includes plug-in adjustable stab parts new wing mounts Wing Span -72 inWing Area- 860 sq Complete Delux KitSI 5995 TIGER TAIL 4S DELUX ALL BALSA KIT PLUG-IN ADJUSTABLE STAB KIT last can optimize stab incidence best flight charac teristics pair glass filled nylon adjusters Included provide micro screw adjustment smaller front tube Main tube aluminum matching phenolic socket TRANSMITTER CASE An inexpensive rugged molded case protect expensive transmitter both two stick single stick transmitters Brown leather grain aluminum trim locking clasp S 1895 WING TUBE & SOCKETS Aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wing structure Now size models 718 dia 25 895 t/diax25 995 diax3S1495 feather Ilte glass cloth 7 az/sq yd est weave Fastest Filling test Finished Weight Big 3 Sq Yard Pkg Detailed Instructions S895 ENGINE SLEEVE & BEARING PULLER Pull sight sleeves bearings easily out damage new 60s 17MM rear bearings Sleeve Puller5 795 Bearing Puller5 695 Bothpor51395 IVANS MAGIC GADGET protractor device used Ivan Kristensen accurately measure aileron elevator rudder throw Takes guess work out tool complete instrutnons log trimming out airplane quality book carrying caseS 795 NEWI WING MOUMING SET wing mounting system developed Ron Chidgey fast neat accurate stays tight Three nylon brackets screws machined wood wing blocks included S 595 READY TO FLY Call 1-800-45-TO FLY *LOW PRICES *EASY TO ASSEMBLE *NO BUILDING *NO PAINTING Piper Cherokee-40 Piper Gherokee-25 Fokker E111-40 Fancy Stick-25 Cessna 172-20 engine included Zh SUNSHINE HOBBY 17721 South Western Avenue Gardena California 90247 Check free movement controls set up throws Covering Following usual practice used transparent MonoKote Cal sug gested lightweight silk tissue however model certainly would delightful covered silk new iron-on fab rics transparent colors would also viable alternative sprayed Poly U trim over Mono Kote light rubbing 000-grade steel wool aids adhesion preference Sig Stripe Rite masking Brushing coat Sig clear Skybrite great preventing bleeders also used Stripe Rite pin stripes letters vinyl stick-on ones office supply store Banner wheels used prototype certainly add appearance points used samples new hinge material model recommend Klett Sig pinned hinges safeguard drill hole insert small piece toothpick securing CyA covered Sportwagon RC equipment place hadnt done way quite some time really simpler easier effort Cut window holes out shrunken MonoKote Cut window plastic out line over plans using Wilhold RC 56 ad hesive secure windows inside frame windscreen will need trimmed slightly good fit Position inside ply rear onto tiny cut outs MonoKote Stripe Rite tape used joint primed tank engine compart ments Skybrite painted Poly U Flying Remember used fly sport Free Flight dream day wed able make turn back land feet Want bet thought went around Cal Smiths mind 1948 Well golly 37 years later can know some purists detest contra diction term what have RC-assisted Free Flight incarna tion Cals sexy little Free Flight gets fly around merrilyand get watch giving occasional directional changes $12999 $9599 $11999 $6999 $9999 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 POXY PRIMER K&B SUPER POXY PAINT 168 MIXING CUPS ground Point nose wind advance power up away goes radio may needed slight course corrections might change elevator bit adjust rate climb keep soaring too high flies adjust chugging around looking pretty re alistic air isnt what youre after use Sportwagon practice maneuvers like stall turns yes lazy loops model has excellent versatility Cal Smith did homework well Men Cal Smiths extraordinary gifts energy dont come along very often Artist author model designer Cal sort Renaissance man model avia tion closing 1969 tribute Model Airplane News excerpted above Bill Win ter declared Forgotten Cal will never hope updating Sportwagon will help keep memory its designer alive Radio Technique/Myers Continued page 33 Tach 2 still works must good idea Thanks Bob Making use idea presented column back October 79 Accu-Tach 2 handbook suggests used evaluate RC system installation cut battery lead aileron adapter cable con nect cut ends milliamoneter like Accu Tach 2 Put adapter between flight pack switch harness Turn transmitter receiver observe current being drawn try control its extreme position trim available same extreme can stall servo position will see amps jump way up stay up warning reset throttle stop clear epoxy out binges make additional clear ance pushrods etc can put modi fied aileron extender cable between servo receiver evaluate particular servo instal lation problems may work system installation insertion resistance Accu Tach 2 oscillator strobes display may drive system instability happens youll have make measure ment analog VOM kind pointer using 500 mA range 132 Model Aviation unuu ruriurmance System TOP PERFORMANCE K&B ENGINES AkplaneMauine K&B FUELS168 GLOW PLUGS 9 Blends4 Choices See Dealer Order Direct Inciude S2 Per Item UPS GATOR RIC PRODUCTS 3713 Pompano Dr acola FL 32514 l 476-8639
Edition: Model Aviation - 1988/04
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 128, 130, 131, 132
NO OCR TEXT NO OCR TEXT days standards can speculate what provocative idea must have seemed 35 years ago Other CL subjects mentioned F-86 Sabre fitted Dyna Jet fourengined Consolidated B-24 Cal did accom panying cover illustrations both planes originally appeared American Modeler Also shown Blunderbus October 1953 issue Air Trails forerunner American Modeler Blunderbus Free Flight cutie de signed around 1/2A engines just introduced time simple model embellished Cals artwork form isometric drawing wire cabane system parasol Blunderbus spotlighted several years ago yet another magazine resur rected RC sport plane Cal fact himself no stranger RC airplanes Se lected Annual single-channel K&B 13-powered Monocoupe 90 optional trike gear no less Janu ary 1955 issue other examples expertise RC abound Cal designed Wonderwings bipe Aeronca Champ two-foot scale Fokker D-8 Sopwith Bipe latter very earliest Giant Scale models interest RC extended model boats well publishing such di verse things surface submarine bunker boat missile ship collabo ration Frank Lashek some thing pioneer Annual spotlighted Cals Maverick unlimited hydro arti cle included line drawings construc tion well charcoal illustration boat running across pond opera tor thumbing merrily away singlechannel transmitter Other artworks featured An nual Meyers Little Toot pro file Little Toni both like F-86 Sabre Consolidated B-24 paired cover illustrations origi nal issues Cal earned immense distinction illus trator vivid artwork added singular dimension construction articles equaled few others either before since brilliant use subtle color coupled incredible accuracy novel way expressing movement has sel dom duplicated Cals cutaway per spective drawings compare favorably late Hank Clark cover art adorned faces innumerable maga zines notably American Aircraft Modeler 26 Model Aviation alternative power uoc iriu d Davis Dieselised 05 iu model small enough held inverted easily improved starting diesel engine swings large prop its size its torque makes Sportwagon ideal combination Flying Models otten swapped construction articles British modeling publications time cover annual plans books Cal Smith starting ignition engine original Sportwagon FUAoved super running engine tiuu perhaps bit too much such light model Sportwagon ca pable steep climbs half throttle elevators built integraiiy witn rudder pushrod passes through slot stab cut out hinged Mild aerobat fuselage top Small control horns should ics can done clevis connected used give rudder plenty throw bottom elevator horn Lett Uoc relers mo mis memnou urn grabber has used several designsproblems certainly makes clean wing mourn wirnuxtra effort Right Ace Bantam Midget servos 250 mAh batttry md Silver Seven receiver fit nicely fuselage Note wing dowel detail CAL SMITHS SPOR1WAGON DEVELOPED FOR R/C BY DR DBMATHEWS 3/16 PLY GRABBER 1/16 BALSA RIBS 3/16 SQ BALSA FRE 1/i SQ SQ BALSA FPE 1/1 x 3/16 BALSA 5156 STRINGEBS 1/3 x 1/2 BALSA SPAB \\ 8D1A I11A 3/16 x IA 3/32 PLY 3/16 PLY 2 3/16 SQ 1/A x 1/2 IL 3/16 x 3/32 SPABS l/I6SQBALSASPPdI 2 Its beauty like keeps selling translucent coverings such gorgeous ar rangement sticks could bear hide structure typical of Cals de signs provides rugged strength penalty excessive weight Doc decided modify original symmetrical airfoil stab easier-to-build flat-bottom section Among diverse cover subjects B-57s P-47s Fokker D-8 Goodyear rac ers missile cruiser X-15 Unlim fin rudder constructed lami nating strips balsa soaked ammonia water make flexible Spreading phatic resin Elmers glue along seams bonds laminations formed plans around piece foam board ited Hydro Sopwith Pups Stitts Playboy Glenn Curtiss racing Barney Oldfields old Number 99 action flight settings incredible beauty often companion model design article same issue magazine Although Cal Smith gave countless hours pleasurable building reading Im no way authority life character remarkably accomplished man Fellow modeler Bill Winter other hand knew Cal well fact Bill Cals earliest influential mentors Bill Cal Boys Bills eulogy former pupil lifelong friend October 1964 issue Model Airplane News have suffered inestimable loss almost long can remem ber source numberless de nose made %-in balsa sheeting carved sanded aesthetic shape Cals artistic eye originally provided Note bottom support piece windshield S/lB 3/32 BALSA SPARS TOP ORLY 3/lA BALSA SHEET /iII 3/1655 BALSA SPARS TOP 6 BOTTOM I/B I/2 BALSA 3PM BOTTOM ORLY 3116 BALSA SHEET \ S/lA BALSASTAB CENTERSLOT FOR FILLSETIOH RIBPINK va BALSA ~4tzEI~ TYPICAL HINSEfr~I 1/16 BALSA SHEET TOP B BOTTOM WING TILT /IA BAL~L FILL -ELEVAT0R4 3/IA PILL LAM PARS X-SECT STAB TIP THREE 3/IA 3/B BALSA DOWEL I/B 3/IA1 BALSAGRABBER 1/64 PLYWINS FRAMES/IA DO X-SECTINNER FRAME 1/B S/B V1EFILL LOOBINS FORWARD F-3 -SIS 91219 THS BU REAR WING MOUII 3/IA PLY ETAIL I1SO 5 BALSA 1/B SIA MUSIC WIRE LANDING GEAR DETAILBOTi 1/B 3125436 signs articles illustrations cover paint ings box wraps books helped make hobby others enjoyable light us saw re member him Cals versatility however went beyond things always surprised constant excursions other things instant au thentic expert exhibited typical interest thing around himhe expert scuba diving spearfishing ice boating wonderfully self-illustrated books equaled surpassed what gone before fields first recollection Cal goes back 1945 aviation editor met him through MAN cover artist Jo Kotula Smitty just out Air Force during WW H participated prepa ration flying safety manuals could ask man anything tackled it done perfection drew Smog Hog plans wrote getting-started article painted cover did how-to28 Model Aviation Full-Size Plans Available. See Page 172 SO SA IS TSP SflOM 3/INI/2 3/B BALSA SA I/4I/2 BALSA LEADING EDGE 1/4 BALSA BALSA TILT WITH 26WING TILTWING PLAN TOP VIEW 3/IN 55 BALSA TOP ONLY 3/16 BALSA GADGETS - NGTIH 3/16 BALSAGTA RIBSHARSWODD-SHhE 3 EDGEI/IN BALSATO YE STOCKS/IN PLY _________________________MOTOR MOUNT 3LAMSqF V16 3/IN BALSA F-2 liltILFIREWALL E4 3/165/BS/RSO ALSABASSWOODLITE PLYTYPICAL 3/4SERVO RAILSERVO OCKF-SA/7 3/B BALSA SHEET COWL CHEEKSF4 DOWELI/B 3/16 BALSA 015 CLEAR1/64 PLYSIDE STRINGERS WINDSCREENS1/4 1/2 SPRUCE WITh PLASTICFRAMEB 32 NYLON BOLT INTO DIG DH-219 BLOCK-UNDER 3/32 BALSA SHEETSCRAP FILL 3/323/16 S/B/006 CLEAR//B LSA3/16 50 BALSA SCRAP /WINDOWS/PR ME SHEET FILL -I--- TEETFILL--1/ii AL BRAIN PULTjI~/_ IOTOIGP3 NEp4pF-NF F-N 3/IN BALSAI/B 3/16 BALSA FILL / YE PLY SCRAP BALSA/SERVO RAILS COHERING SUPPORTII/B 5116SIDE MUSIC WIREFUSELAGEVIEW THIN PLY OR 2-1/2 5116BALSA PAIRING WHEELSIAPTIONALI -S/32 BALSA SHEET RIB 3/32 BALSA TIP RIBS ARE SET ON TOP OF REAR SPAR-PALL OTHER SPARS DOWN ONTO TIP __- __ II __ 11IIll ItIll1 _____ II r iii ________ ____l'i ir I/I BALSA T E STOCKWING TIP DETAIL I3/16 BALSA SHEETSANS AFTER ASSEMBLY 5/16 50 BALSA F- 7 3/16 BALSA SHEET___________________ 015 CLEAR PLASTIC WINDSCREEN PAT 5/IN BALSA SHEET FILL STABILIZER MOUNT 3/16 SO BALSK S/IN 3/B 3/16 BALSABALSA S AD SET 3/16 50/ BALSA / FIN I/B S/IN~BALSA S/IN BALSA SHY THREE JAMINTONS OF 1/16 3/16 BBLSA FORMED DEFLE CT IONS RUDDER I/2LB B ELEVI/ZUBD RuDRND DIG SHORT PUSHNOD EDIT RIGHT SIDE I/IN DIA MWNO MODEL AVIATION CAL SMIThS SPORT WAGON 3/16 BALSA SHEET FROM FLYING MODELS AUG 1948 DEVELOPED FOR R/C BY DR 0 9 MATHEWS TRACING BY JOE DEMARCO do-it sketch model book fullcolor illustration Colliers hard cover work scholarly book world plastic kit box wrapthe result above criticism' recently letter sent response photos Sportwagon Bill put incisively Cal Smith God de stroyed mold History Sportwagon Bill Winter re calls sitting Cals home evening said Cal ought de sign sexy little Free Flight Cal took bait published result Flying Models magazine during stint technical editor late Forties Certain models linger ones mind seem ingly forever often submerged sub conscious just awaiting chance burst back awareness again Sportwagon case point Although planes 1948 Flying Models debut im pressed enormously its distinctive attractive appearance point career Id lost interest Free Flight transferred enthusiasm Control Line obviously attraction held never got around building Sportwagon original plans still wasnt about let go August 1948 Flying Models featured Cals construc tion article magazine carted over country us 1977 British friend Ray Hull sent magazine collection Included incredibly interesting batch British mags 1949 edition Model Plans An nual serieswith black-and-white photo Cal Smith starting Sportwagon cover Inside reprint Flying Models articles appears British Model Aviation series American magazine Flying Models often crosspublished others designs same Annual fact also contained Walt Schro ders Jersey Javelin 1949 British publication turned out catalyst needed Out subcon scious Sportwagon tumbled right away came inspiration adding RC sist Cal alive today thought might well redesign sexy little Free Flight RC sport didnt self try make everything Cal would have wanted hope Ive achieved objective first impulse enlarge 54-in prototype reconsidered stayed Cals original wingspan dimension Cals classic force-moment arrangement sport Free Flight works wonderfully RC conversion 61 aspect ratio 1 per ft span dihedral 45% tail mo ment arm 33% tail area 7% fin area add up delightful model Other pertinent design factors Underpower model using power loading 150 200 oz per cu engine Build wing loading 7 11 oz per sq ft area Use tough covering undercarriage Somehow parameters seem have etched subcon scious right along Sportwagon else explain appear over April 1988 29 TA CENTER SECT RIB 5/32 PLY JOINER 3/IN PLY GRABBER F-S / TAPER I/B SO BALSA BOTTOM STRINGERS SPECIFICATIONS ENGINEID TO 15 WEIGHT3D OZ WING CHORD9-1/4 WING SPAN 54 WING AREA 330 SOFT WING IAAflIfl /SSFT 30 Model Aviation over again own designs Cal powered prototype Bantam 19 ignition also known use Forster 29 British Model Plans Annual suggested using E D Comp Spe cial Mills 24 Ailbon 28 K Vulture Ive found diesel engine roughly 15 Cu capacity fits Cals inten tions closely Forster 29 can envision RC Sportwagon having appeal several different groups mod elers slowly growing numbers Nos talgia RC enthusiasts would certainly interested Old-timers share rever ence original Sportwagon would want try RC version too Maybe modeler whos just shopping really sexy-looking sport RC would also find filled bill Whoever whatever reason build yourself Sportwagon Construction Cyanoacrylate CyA primary adhesive used throughout Ali phatic resin Sig Bond etc used lam inate various outlines five-minute epoxy adhere plywood parts wood balsa unless otherwise speci fied use medium-weight C grain Strip wood should clear knots also medium weight customary Cals models structure strong side same time well stressed relatively easy fabricate Wing Develop master plywood rib tem plate tracing onto wood placing car bon paper between latter underside plans Use pattern stack cut ribs Alternatively cut out knife using metal template Wing tip segments constructed same way should preassembled before installation Notch trailing edge stock razor saw better yet blade reversed jigsaw Taper rear spar before assembly order have reference point tip Build center section integrally left panel making sure ribs ver tical contrast tilt outboard rib has set jig Place scraps 346-in sheet under leading edge assembly building sur face Lay wings down working spars forward making sure ribs positioned properly tip ribs can trimmed master ribs slic ing bottom center section leading edge filler sheet best left uncontoured until wing panels have joined Obviously out board filler should cut match cline ribs After sanding dihedral bevel block against table face join panels using five-minute epoxy clothespins Custom fit ply dihedral brace wing cutting slot through ribs against spar faces Hacksaw blades taped together work well Slide Continued page 128 PRECISION MODEL PRODUCTS 4ff pM Made USA BARSTOCK Retail Approx Pert No SizePrice Weight TT-1 50-B. 1-1/2$1395. 058 oz TT-1 75-B . 1-3/41495 095 oz TT-200-B .21595. 100 TT-225-B 41895. 155 TT-226-B 4 FAll1895. 145 -2B. 2-1/21895. 188 TT-251-B 2 FAll2095. 166 oz TT-275-B. 2-3/42295 215 TT-276-B. 2-3/4 FAll2495 200 TT-300-B 32695 258 os TT-301-B 3 FAIl2895 247 oz TT-325-B 43695. 340 az 3 Pieces Cone Back Plate Retainer Screw Nate 3 4 Blade Spinners Available Sizes Add $300 Per Spinner Available Sizes Add $300 Per Spinner PROP NuT AflAPTOR Retell Approx Pert No SizePrice Weight TT-140-A. 1/4-28$495 061 TT-147-A 1/4-28/7mm 495 061 oz TT-610-A mm495. 063az TT-710-A mm495. 082os fl-51 6-A 5/16-24495. 076 fl-810-A mm495. 076oz TT-825-A. 8 xl 25mm.. 495. 075 os TT-375-A. 3/8-24595 Os lT-125-A l2Smm. 595. 1lSos 3 Piece Set Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 FOAM WING CORES SEND 150 FOR DESCRIPTIVE PRODUCT CATALOG u.umuummmuinuummuuuuuuuuuua U FU U U PRECISION MADE EXPANDED BEAD POLYSTYRENE REPLACEMENT WING & STAB CORES FOR ALL POPULAR R/C AIRCRAFt OVER 250 DIFFERENT WINGS U IN STOCK FOR IMMEDIATE DELI VERK SO IF FAVORITE BIRD THAT NEEDS WING CALL ORI I IU ___________________________ ii U U U U U IUUEEEEEUUUEEUUUUUUUUUUUEUUUUUUUUEUEEUEUI WYiV MF6 WING MFG PO BOX 33 CRYSTAL LAKE IL 60014 beck suggest two D-cells would give few spurts amperage poop out also phoned explain problemand backed up sending Eveready 15-volt battery couldnt obtain elsewhere battery hard find can bet sent letter Union Carbide Corp ask no #1S6 1-volt batteries hobby shopsand no advertis ing modeling magazines Its item surely need second problem Cox Black Widow 049 Murphy claimed screw just vanished held backplate fuel tank en gine No magnet could find sent Cox Hobbies letter requesting screw Black Widow 049 enclosed $100 cash Several weeks later received current catalog price list packet screws parts 049 overhaul kit retailing $105 No payment due Golly old veterans heart goes out two American manufacturers gratitude help gave freely Lee Hoffman Banning CA two firms representative aeromodeling field really strive high level customer satisfac tion Maybe thats because run modelers modelers us con sumers really quite lucky know have quality things can pur chase make modeling easier and/or enjoyable Sportwagon/Mathews Continued page 30 ply blank slot mark oufline pencil Cut out epoxy place install grabber time Carve sand leading edge tips trailing edge contour Although Cal covered leading edge 2 sheeting obvious reasons doesnt suit present purposes Fuselage Standard box-type construction employed frame built over other using scraps masking tape prevent sticking substituted mod ern radial mount breakaway engine beams prototype Its good idea assemble form ers bulkheads fuselage frames curing Again use carbon paper build jig frames #3 #4 directly over drawings Remove frames pop apart using table knife Sand bevel tail posts place right frame over drawing Trial fit adjust formers necessary fit snugly frame tach CyA making sure right angles planes Install left frame onto formers checking alignment triangle etc prefer leave box building sur face jacking up tail post exactly one-half fuselage width Glue left frame place cut crosspieces pairs using top view guide An alternative method would involve re moving box setting directly over top view constructing either case sure tail post center midline stab seat level Bend landing gear over drawing using large vise-grip pliers bench vise cutoff wheel also useful attempt rebend mistake just toss start over unit held #3 nylon clips Its wise predrill #3 before installing gear Attach bottom formers stringers Moisten top sheeting ammonia water pull down over firewall former side stringers taper rear filler strips around win dows taper up wing seat CyA 1/64 ply window frames stringer filler strips Sheet plastic windows will attached inside frames after fuselage has covered makes very neat easily installed window treatment Attach wing saddle fillers dowel five-minute epoxy Make sure dowel center runs level along both planes Joining wing fuselage Hold 128 Model Aviation WHEN USING THE CK-3 ONLY THE SIZE IS DIFFERENT win Engine Control Normal single throttle stick control over both engines Absolute engine synchronization advanced throttle settings via small adjustments RUDDER trim Realistic outboard engine advancement during turns taxi throttle settings via RUDDER control Completely realistic 1141 scale engine control during taxz synchronization flight finally available Works radio system digital CMOS No tuned circuits Installation instructions included -NOT simple coupling device Advancing engine does NOT retard other engine Order CK-3 just $4995 S&H C & K Ventures / 1807 Park / Laramie WY / 82070 Phone 307-745-7557 Order 24 hours day Please call write complete information add just device dream RC twin quest absolute realism onel 'grabber against ply brace clamps slide wing over front dowel Adjust center section wing parallel fuselage sides Use piece heavy string has pinned tail post check wing exactly right angles fuselage Measure common point both tips tail post adjusting until exactly Mark point grabber epoxy joiner Return wing seat recheck string Using drill size corresponding nylon bolt drill down through hardwood trail ing edge underlying hardwood block Screw bolt pre-tapped Sig block pull up against hardwood wing saddle hit CyA tapped hole bolt could used instead hardwood rear saddle would probably need thicker stock Initially tried Cals rubberband wing hold-on technique unable keep wing sliding rear Perhaps single dowel running forward have grabber dowel would work Empennage original Sportwagon used symmetrical stab section con structing joining fuselage used flat-bottom section sake simplicity also chose flat fin-rudder sembly airfoil Make laminated outlines moisten ing strips balsa ammonia water spreading aliphatic resin along seams laminations formed either over plans using pins along perime ter over foam board patterns horizontal stabilizer ribs con structed much same manner wing ribs Lay sheet center section down add spars ribs leading trailing edges Use straightedge mark cut %-in slots ribs two hinge line spars CyA place trim edges tips install Use sanding block final contouring hinge spars match ribs Add top center section sheeting al lowing fin slot After final sanding sep arate elevator portion cut slots hinges install perma nently Since elevator horn screw plate will under covering CyA Lite Ply base fin construction selfexplanatory Installing hardware decided verted mounting engine can also installed either upright sidewinder position Tank position will vary accordingly used small 2-oz Per fect Brand metal tank replumbed rear pickup top vent small Sullivan RC 130 Model Aviation Ultimate Model 310 courtesy Jim Ifatt/Seneca II courtesy C & K Ventures Last An Automatic Full-Feathering Adjustable Pitch Propeller An exclusive 4patented mechanism lets adjust pitch 8-40 optimum perfor mance blades automa tically feather motor stops reduce drag give much Recommended 72-80 motor gliders similar models wing AZV loads up 14 ozI sq ft 05 direct drive systems e shaft Stock No MAO8XXE $2495 Suggested Retail Available Through Leading Distributors WINDSOR PROPELLER CO 384 Tesconl Ct Santa Rosa CA 95401 tank will also fit throttle system used has throttle cable enclosed nylon rod battery should placed alongside tank far forward possible Du-Bro switch mount positioned scrap filler model used 14 x 14-in balsa pushrods EZ connectors servo arm other threaded wire clevis Nylon rods could also used rudder unit does exit top fuselage Sportwagon must balance shown plans came out needing ballast however other engine-ALSO AERONCA Li6B/CHAI84 IN VULT BT-13 VALIANT 84 IN SPAN and-equipment combinations may require adding ballast nose tail Continued page 132 Safe Flying No Accident 4 Fokker D-VII VK Model Aircraft PO Box 3007 Aurora IL 60505 312-357-1883 F iA SCAlE SPT SCALE AONCA L3/EIThlDEE 105 IN 2 CYClE 90-13 /1 4 CYClE 12-18 ROLIiD PLAN SETS------- $20 EACH FIBERGLASS CCWIS--------- 20 EACH ADD 120SHPDlGNYS ADD 8QTAX AERO PLANS N PARTS PO BOX 939 OIEAN NY 14760 716 372 / April 1988 131 GATOR RIC PRODUCTS An new Tiger Tail 120 four strokes piped 60 two strokes beautiful performer competition just showing offl balsa kit machined wood parts complete hardware package includes plug-in adjustable stab parts new wing mounts Wing Span -72 inWing Area- 860 sq Complete Delux KitSI 5995 TIGER TAIL 4S DELUX ALL BALSA KIT PLUG-IN ADJUSTABLE STAB KIT last can optimize stab incidence best flight charac teristics pair glass filled nylon adjusters Included provide micro screw adjustment smaller front tube Main tube aluminum matching phenolic socket TRANSMITTER CASE An inexpensive rugged molded case protect expensive transmitter both two stick single stick transmitters Brown leather grain aluminum trim locking clasp S 1895 WING TUBE & SOCKETS Aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wing structure Now size models 718 dia 25 895 t/diax25 995 diax3S1495 feather Ilte glass cloth 7 az/sq yd est weave Fastest Filling test Finished Weight Big 3 Sq Yard Pkg Detailed Instructions S895 ENGINE SLEEVE & BEARING PULLER Pull sight sleeves bearings easily out damage new 60s 17MM rear bearings Sleeve Puller5 795 Bearing Puller5 695 Bothpor51395 IVANS MAGIC GADGET protractor device used Ivan Kristensen accurately measure aileron elevator rudder throw Takes guess work out tool complete instrutnons log trimming out airplane quality book carrying caseS 795 NEWI WING MOUMING SET wing mounting system developed Ron Chidgey fast neat accurate stays tight Three nylon brackets screws machined wood wing blocks included S 595 READY TO FLY Call 1-800-45-TO FLY *LOW PRICES *EASY TO ASSEMBLE *NO BUILDING *NO PAINTING Piper Cherokee-40 Piper Gherokee-25 Fokker E111-40 Fancy Stick-25 Cessna 172-20 engine included Zh SUNSHINE HOBBY 17721 South Western Avenue Gardena California 90247 Check free movement controls set up throws Covering Following usual practice used transparent MonoKote Cal sug gested lightweight silk tissue however model certainly would delightful covered silk new iron-on fab rics transparent colors would also viable alternative sprayed Poly U trim over Mono Kote light rubbing 000-grade steel wool aids adhesion preference Sig Stripe Rite masking Brushing coat Sig clear Skybrite great preventing bleeders also used Stripe Rite pin stripes letters vinyl stick-on ones office supply store Banner wheels used prototype certainly add appearance points used samples new hinge material model recommend Klett Sig pinned hinges safeguard drill hole insert small piece toothpick securing CyA covered Sportwagon RC equipment place hadnt done way quite some time really simpler easier effort Cut window holes out shrunken MonoKote Cut window plastic out line over plans using Wilhold RC 56 ad hesive secure windows inside frame windscreen will need trimmed slightly good fit Position inside ply rear onto tiny cut outs MonoKote Stripe Rite tape used joint primed tank engine compart ments Skybrite painted Poly U Flying Remember used fly sport Free Flight dream day wed able make turn back land feet Want bet thought went around Cal Smiths mind 1948 Well golly 37 years later can know some purists detest contra diction term what have RC-assisted Free Flight incarna tion Cals sexy little Free Flight gets fly around merrilyand get watch giving occasional directional changes $12999 $9599 $11999 $6999 $9999 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 POXY PRIMER K&B SUPER POXY PAINT 168 MIXING CUPS ground Point nose wind advance power up away goes radio may needed slight course corrections might change elevator bit adjust rate climb keep soaring too high flies adjust chugging around looking pretty re alistic air isnt what youre after use Sportwagon practice maneuvers like stall turns yes lazy loops model has excellent versatility Cal Smith did homework well Men Cal Smiths extraordinary gifts energy dont come along very often Artist author model designer Cal sort Renaissance man model avia tion closing 1969 tribute Model Airplane News excerpted above Bill Win ter declared Forgotten Cal will never hope updating Sportwagon will help keep memory its designer alive Radio Technique/Myers Continued page 33 Tach 2 still works must good idea Thanks Bob Making use idea presented column back October 79 Accu-Tach 2 handbook suggests used evaluate RC system installation cut battery lead aileron adapter cable con nect cut ends milliamoneter like Accu Tach 2 Put adapter between flight pack switch harness Turn transmitter receiver observe current being drawn try control its extreme position trim available same extreme can stall servo position will see amps jump way up stay up warning reset throttle stop clear epoxy out binges make additional clear ance pushrods etc can put modi fied aileron extender cable between servo receiver evaluate particular servo instal lation problems may work system installation insertion resistance Accu Tach 2 oscillator strobes display may drive system instability happens youll have make measure ment analog VOM kind pointer using 500 mA range 132 Model Aviation unuu ruriurmance System TOP PERFORMANCE K&B ENGINES AkplaneMauine K&B FUELS168 GLOW PLUGS 9 Blends4 Choices See Dealer Order Direct Inciude S2 Per Item UPS GATOR RIC PRODUCTS 3713 Pompano Dr acola FL 32514 l 476-8639
Edition: Model Aviation - 1988/04
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 128, 130, 131, 132
NO OCR TEXT NO OCR TEXT days standards can speculate what provocative idea must have seemed 35 years ago Other CL subjects mentioned F-86 Sabre fitted Dyna Jet fourengined Consolidated B-24 Cal did accom panying cover illustrations both planes originally appeared American Modeler Also shown Blunderbus October 1953 issue Air Trails forerunner American Modeler Blunderbus Free Flight cutie de signed around 1/2A engines just introduced time simple model embellished Cals artwork form isometric drawing wire cabane system parasol Blunderbus spotlighted several years ago yet another magazine resur rected RC sport plane Cal fact himself no stranger RC airplanes Se lected Annual single-channel K&B 13-powered Monocoupe 90 optional trike gear no less Janu ary 1955 issue other examples expertise RC abound Cal designed Wonderwings bipe Aeronca Champ two-foot scale Fokker D-8 Sopwith Bipe latter very earliest Giant Scale models interest RC extended model boats well publishing such di verse things surface submarine bunker boat missile ship collabo ration Frank Lashek some thing pioneer Annual spotlighted Cals Maverick unlimited hydro arti cle included line drawings construc tion well charcoal illustration boat running across pond opera tor thumbing merrily away singlechannel transmitter Other artworks featured An nual Meyers Little Toot pro file Little Toni both like F-86 Sabre Consolidated B-24 paired cover illustrations origi nal issues Cal earned immense distinction illus trator vivid artwork added singular dimension construction articles equaled few others either before since brilliant use subtle color coupled incredible accuracy novel way expressing movement has sel dom duplicated Cals cutaway per spective drawings compare favorably late Hank Clark cover art adorned faces innumerable maga zines notably American Aircraft Modeler 26 Model Aviation alternative power uoc iriu d Davis Dieselised 05 iu model small enough held inverted easily improved starting diesel engine swings large prop its size its torque makes Sportwagon ideal combination Flying Models otten swapped construction articles British modeling publications time cover annual plans books Cal Smith starting ignition engine original Sportwagon FUAoved super running engine tiuu perhaps bit too much such light model Sportwagon ca pable steep climbs half throttle elevators built integraiiy witn rudder pushrod passes through slot stab cut out hinged Mild aerobat fuselage top Small control horns should ics can done clevis connected used give rudder plenty throw bottom elevator horn Lett Uoc relers mo mis memnou urn grabber has used several designsproblems certainly makes clean wing mourn wirnuxtra effort Right Ace Bantam Midget servos 250 mAh batttry md Silver Seven receiver fit nicely fuselage Note wing dowel detail CAL SMITHS SPOR1WAGON DEVELOPED FOR R/C BY DR DBMATHEWS 3/16 PLY GRABBER 1/16 BALSA RIBS 3/16 SQ BALSA FRE 1/i SQ SQ BALSA FPE 1/1 x 3/16 BALSA 5156 STRINGEBS 1/3 x 1/2 BALSA SPAB \\ 8D1A I11A 3/16 x IA 3/32 PLY 3/16 PLY 2 3/16 SQ 1/A x 1/2 IL 3/16 x 3/32 SPABS l/I6SQBALSASPPdI 2 Its beauty like keeps selling translucent coverings such gorgeous ar rangement sticks could bear hide structure typical of Cals de signs provides rugged strength penalty excessive weight Doc decided modify original symmetrical airfoil stab easier-to-build flat-bottom section Among diverse cover subjects B-57s P-47s Fokker D-8 Goodyear rac ers missile cruiser X-15 Unlim fin rudder constructed lami nating strips balsa soaked ammonia water make flexible Spreading phatic resin Elmers glue along seams bonds laminations formed plans around piece foam board ited Hydro Sopwith Pups Stitts Playboy Glenn Curtiss racing Barney Oldfields old Number 99 action flight settings incredible beauty often companion model design article same issue magazine Although Cal Smith gave countless hours pleasurable building reading Im no way authority life character remarkably accomplished man Fellow modeler Bill Winter other hand knew Cal well fact Bill Cals earliest influential mentors Bill Cal Boys Bills eulogy former pupil lifelong friend October 1964 issue Model Airplane News have suffered inestimable loss almost long can remem ber source numberless de nose made %-in balsa sheeting carved sanded aesthetic shape Cals artistic eye originally provided Note bottom support piece windshield S/lB 3/32 BALSA SPARS TOP ORLY 3/lA BALSA SHEET /iII 3/1655 BALSA SPARS TOP 6 BOTTOM I/B I/2 BALSA 3PM BOTTOM ORLY 3116 BALSA SHEET \ S/lA BALSASTAB CENTERSLOT FOR FILLSETIOH RIBPINK va BALSA ~4tzEI~ TYPICAL HINSEfr~I 1/16 BALSA SHEET TOP B BOTTOM WING TILT /IA BAL~L FILL -ELEVAT0R4 3/IA PILL LAM PARS X-SECT STAB TIP THREE 3/IA 3/B BALSA DOWEL I/B 3/IA1 BALSAGRABBER 1/64 PLYWINS FRAMES/IA DO X-SECTINNER FRAME 1/B S/B V1EFILL LOOBINS FORWARD F-3 -SIS 91219 THS BU REAR WING MOUII 3/IA PLY ETAIL I1SO 5 BALSA 1/B SIA MUSIC WIRE LANDING GEAR DETAILBOTi 1/B 3125436 signs articles illustrations cover paint ings box wraps books helped make hobby others enjoyable light us saw re member him Cals versatility however went beyond things always surprised constant excursions other things instant au thentic expert exhibited typical interest thing around himhe expert scuba diving spearfishing ice boating wonderfully self-illustrated books equaled surpassed what gone before fields first recollection Cal goes back 1945 aviation editor met him through MAN cover artist Jo Kotula Smitty just out Air Force during WW H participated prepa ration flying safety manuals could ask man anything tackled it done perfection drew Smog Hog plans wrote getting-started article painted cover did how-to28 Model Aviation Full-Size Plans Available. See Page 172 SO SA IS TSP SflOM 3/INI/2 3/B BALSA SA I/4I/2 BALSA LEADING EDGE 1/4 BALSA BALSA TILT WITH 26WING TILTWING PLAN TOP VIEW 3/IN 55 BALSA TOP ONLY 3/16 BALSA GADGETS - NGTIH 3/16 BALSAGTA RIBSHARSWODD-SHhE 3 EDGEI/IN BALSATO YE STOCKS/IN PLY _________________________MOTOR MOUNT 3LAMSqF V16 3/IN BALSA F-2 liltILFIREWALL E4 3/165/BS/RSO ALSABASSWOODLITE PLYTYPICAL 3/4SERVO RAILSERVO OCKF-SA/7 3/B BALSA SHEET COWL CHEEKSF4 DOWELI/B 3/16 BALSA 015 CLEAR1/64 PLYSIDE STRINGERS WINDSCREENS1/4 1/2 SPRUCE WITh PLASTICFRAMEB 32 NYLON BOLT INTO DIG DH-219 BLOCK-UNDER 3/32 BALSA SHEETSCRAP FILL 3/323/16 S/B/006 CLEAR//B LSA3/16 50 BALSA SCRAP /WINDOWS/PR ME SHEET FILL -I--- TEETFILL--1/ii AL BRAIN PULTjI~/_ IOTOIGP3 NEp4pF-NF F-N 3/IN BALSAI/B 3/16 BALSA FILL / YE PLY SCRAP BALSA/SERVO RAILS COHERING SUPPORTII/B 5116SIDE MUSIC WIREFUSELAGEVIEW THIN PLY OR 2-1/2 5116BALSA PAIRING WHEELSIAPTIONALI -S/32 BALSA SHEET RIB 3/32 BALSA TIP RIBS ARE SET ON TOP OF REAR SPAR-PALL OTHER SPARS DOWN ONTO TIP __- __ II __ 11IIll ItIll1 _____ II r iii ________ ____l'i ir I/I BALSA T E STOCKWING TIP DETAIL I3/16 BALSA SHEETSANS AFTER ASSEMBLY 5/16 50 BALSA F- 7 3/16 BALSA SHEET___________________ 015 CLEAR PLASTIC WINDSCREEN PAT 5/IN BALSA SHEET FILL STABILIZER MOUNT 3/16 SO BALSK S/IN 3/B 3/16 BALSABALSA S AD SET 3/16 50/ BALSA / FIN I/B S/IN~BALSA S/IN BALSA SHY THREE JAMINTONS OF 1/16 3/16 BBLSA FORMED DEFLE CT IONS RUDDER I/2LB B ELEVI/ZUBD RuDRND DIG SHORT PUSHNOD EDIT RIGHT SIDE I/IN DIA MWNO MODEL AVIATION CAL SMIThS SPORT WAGON 3/16 BALSA SHEET FROM FLYING MODELS AUG 1948 DEVELOPED FOR R/C BY DR 0 9 MATHEWS TRACING BY JOE DEMARCO do-it sketch model book fullcolor illustration Colliers hard cover work scholarly book world plastic kit box wrapthe result above criticism' recently letter sent response photos Sportwagon Bill put incisively Cal Smith God de stroyed mold History Sportwagon Bill Winter re calls sitting Cals home evening said Cal ought de sign sexy little Free Flight Cal took bait published result Flying Models magazine during stint technical editor late Forties Certain models linger ones mind seem ingly forever often submerged sub conscious just awaiting chance burst back awareness again Sportwagon case point Although planes 1948 Flying Models debut im pressed enormously its distinctive attractive appearance point career Id lost interest Free Flight transferred enthusiasm Control Line obviously attraction held never got around building Sportwagon original plans still wasnt about let go August 1948 Flying Models featured Cals construc tion article magazine carted over country us 1977 British friend Ray Hull sent magazine collection Included incredibly interesting batch British mags 1949 edition Model Plans An nual serieswith black-and-white photo Cal Smith starting Sportwagon cover Inside reprint Flying Models articles appears British Model Aviation series American magazine Flying Models often crosspublished others designs same Annual fact also contained Walt Schro ders Jersey Javelin 1949 British publication turned out catalyst needed Out subcon scious Sportwagon tumbled right away came inspiration adding RC sist Cal alive today thought might well redesign sexy little Free Flight RC sport didnt self try make everything Cal would have wanted hope Ive achieved objective first impulse enlarge 54-in prototype reconsidered stayed Cals original wingspan dimension Cals classic force-moment arrangement sport Free Flight works wonderfully RC conversion 61 aspect ratio 1 per ft span dihedral 45% tail mo ment arm 33% tail area 7% fin area add up delightful model Other pertinent design factors Underpower model using power loading 150 200 oz per cu engine Build wing loading 7 11 oz per sq ft area Use tough covering undercarriage Somehow parameters seem have etched subcon scious right along Sportwagon else explain appear over April 1988 29 TA CENTER SECT RIB 5/32 PLY JOINER 3/IN PLY GRABBER F-S / TAPER I/B SO BALSA BOTTOM STRINGERS SPECIFICATIONS ENGINEID TO 15 WEIGHT3D OZ WING CHORD9-1/4 WING SPAN 54 WING AREA 330 SOFT WING IAAflIfl /SSFT 30 Model Aviation over again own designs Cal powered prototype Bantam 19 ignition also known use Forster 29 British Model Plans Annual suggested using E D Comp Spe cial Mills 24 Ailbon 28 K Vulture Ive found diesel engine roughly 15 Cu capacity fits Cals inten tions closely Forster 29 can envision RC Sportwagon having appeal several different groups mod elers slowly growing numbers Nos talgia RC enthusiasts would certainly interested Old-timers share rever ence original Sportwagon would want try RC version too Maybe modeler whos just shopping really sexy-looking sport RC would also find filled bill Whoever whatever reason build yourself Sportwagon Construction Cyanoacrylate CyA primary adhesive used throughout Ali phatic resin Sig Bond etc used lam inate various outlines five-minute epoxy adhere plywood parts wood balsa unless otherwise speci fied use medium-weight C grain Strip wood should clear knots also medium weight customary Cals models structure strong side same time well stressed relatively easy fabricate Wing Develop master plywood rib tem plate tracing onto wood placing car bon paper between latter underside plans Use pattern stack cut ribs Alternatively cut out knife using metal template Wing tip segments constructed same way should preassembled before installation Notch trailing edge stock razor saw better yet blade reversed jigsaw Taper rear spar before assembly order have reference point tip Build center section integrally left panel making sure ribs ver tical contrast tilt outboard rib has set jig Place scraps 346-in sheet under leading edge assembly building sur face Lay wings down working spars forward making sure ribs positioned properly tip ribs can trimmed master ribs slic ing bottom center section leading edge filler sheet best left uncontoured until wing panels have joined Obviously out board filler should cut match cline ribs After sanding dihedral bevel block against table face join panels using five-minute epoxy clothespins Custom fit ply dihedral brace wing cutting slot through ribs against spar faces Hacksaw blades taped together work well Slide Continued page 128 PRECISION MODEL PRODUCTS 4ff pM Made USA BARSTOCK Retail Approx Pert No SizePrice Weight TT-1 50-B. 1-1/2$1395. 058 oz TT-1 75-B . 1-3/41495 095 oz TT-200-B .21595. 100 TT-225-B 41895. 155 TT-226-B 4 FAll1895. 145 -2B. 2-1/21895. 188 TT-251-B 2 FAll2095. 166 oz TT-275-B. 2-3/42295 215 TT-276-B. 2-3/4 FAll2495 200 TT-300-B 32695 258 os TT-301-B 3 FAIl2895 247 oz TT-325-B 43695. 340 az 3 Pieces Cone Back Plate Retainer Screw Nate 3 4 Blade Spinners Available Sizes Add $300 Per Spinner Available Sizes Add $300 Per Spinner PROP NuT AflAPTOR Retell Approx Pert No SizePrice Weight TT-140-A. 1/4-28$495 061 TT-147-A 1/4-28/7mm 495 061 oz TT-610-A mm495. 063az TT-710-A mm495. 082os fl-51 6-A 5/16-24495. 076 fl-810-A mm495. 076oz TT-825-A. 8 xl 25mm.. 495. 075 os TT-375-A. 3/8-24595 Os lT-125-A l2Smm. 595. 1lSos 3 Piece Set Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 FOAM WING CORES SEND 150 FOR DESCRIPTIVE PRODUCT CATALOG u.umuummmuinuummuuuuuuuuuua U FU U U PRECISION MADE EXPANDED BEAD POLYSTYRENE REPLACEMENT WING & STAB CORES FOR ALL POPULAR R/C AIRCRAFt OVER 250 DIFFERENT WINGS U IN STOCK FOR IMMEDIATE DELI VERK SO IF FAVORITE BIRD THAT NEEDS WING CALL ORI I IU ___________________________ ii U U U U U IUUEEEEEUUUEEUUUUUUUUUUUEUUUUUUUUEUEEUEUI WYiV MF6 WING MFG PO BOX 33 CRYSTAL LAKE IL 60014 beck suggest two D-cells would give few spurts amperage poop out also phoned explain problemand backed up sending Eveready 15-volt battery couldnt obtain elsewhere battery hard find can bet sent letter Union Carbide Corp ask no #1S6 1-volt batteries hobby shopsand no advertis ing modeling magazines Its item surely need second problem Cox Black Widow 049 Murphy claimed screw just vanished held backplate fuel tank en gine No magnet could find sent Cox Hobbies letter requesting screw Black Widow 049 enclosed $100 cash Several weeks later received current catalog price list packet screws parts 049 overhaul kit retailing $105 No payment due Golly old veterans heart goes out two American manufacturers gratitude help gave freely Lee Hoffman Banning CA two firms representative aeromodeling field really strive high level customer satisfac tion Maybe thats because run modelers modelers us con sumers really quite lucky know have quality things can pur chase make modeling easier and/or enjoyable Sportwagon/Mathews Continued page 30 ply blank slot mark oufline pencil Cut out epoxy place install grabber time Carve sand leading edge tips trailing edge contour Although Cal covered leading edge 2 sheeting obvious reasons doesnt suit present purposes Fuselage Standard box-type construction employed frame built over other using scraps masking tape prevent sticking substituted mod ern radial mount breakaway engine beams prototype Its good idea assemble form ers bulkheads fuselage frames curing Again use carbon paper build jig frames #3 #4 directly over drawings Remove frames pop apart using table knife Sand bevel tail posts place right frame over drawing Trial fit adjust formers necessary fit snugly frame tach CyA making sure right angles planes Install left frame onto formers checking alignment triangle etc prefer leave box building sur face jacking up tail post exactly one-half fuselage width Glue left frame place cut crosspieces pairs using top view guide An alternative method would involve re moving box setting directly over top view constructing either case sure tail post center midline stab seat level Bend landing gear over drawing using large vise-grip pliers bench vise cutoff wheel also useful attempt rebend mistake just toss start over unit held #3 nylon clips Its wise predrill #3 before installing gear Attach bottom formers stringers Moisten top sheeting ammonia water pull down over firewall former side stringers taper rear filler strips around win dows taper up wing seat CyA 1/64 ply window frames stringer filler strips Sheet plastic windows will attached inside frames after fuselage has covered makes very neat easily installed window treatment Attach wing saddle fillers dowel five-minute epoxy Make sure dowel center runs level along both planes Joining wing fuselage Hold 128 Model Aviation WHEN USING THE CK-3 ONLY THE SIZE IS DIFFERENT win Engine Control Normal single throttle stick control over both engines Absolute engine synchronization advanced throttle settings via small adjustments RUDDER trim Realistic outboard engine advancement during turns taxi throttle settings via RUDDER control Completely realistic 1141 scale engine control during taxz synchronization flight finally available Works radio system digital CMOS No tuned circuits Installation instructions included -NOT simple coupling device Advancing engine does NOT retard other engine Order CK-3 just $4995 S&H C & K Ventures / 1807 Park / Laramie WY / 82070 Phone 307-745-7557 Order 24 hours day Please call write complete information add just device dream RC twin quest absolute realism onel 'grabber against ply brace clamps slide wing over front dowel Adjust center section wing parallel fuselage sides Use piece heavy string has pinned tail post check wing exactly right angles fuselage Measure common point both tips tail post adjusting until exactly Mark point grabber epoxy joiner Return wing seat recheck string Using drill size corresponding nylon bolt drill down through hardwood trail ing edge underlying hardwood block Screw bolt pre-tapped Sig block pull up against hardwood wing saddle hit CyA tapped hole bolt could used instead hardwood rear saddle would probably need thicker stock Initially tried Cals rubberband wing hold-on technique unable keep wing sliding rear Perhaps single dowel running forward have grabber dowel would work Empennage original Sportwagon used symmetrical stab section con structing joining fuselage used flat-bottom section sake simplicity also chose flat fin-rudder sembly airfoil Make laminated outlines moisten ing strips balsa ammonia water spreading aliphatic resin along seams laminations formed either over plans using pins along perime ter over foam board patterns horizontal stabilizer ribs con structed much same manner wing ribs Lay sheet center section down add spars ribs leading trailing edges Use straightedge mark cut %-in slots ribs two hinge line spars CyA place trim edges tips install Use sanding block final contouring hinge spars match ribs Add top center section sheeting al lowing fin slot After final sanding sep arate elevator portion cut slots hinges install perma nently Since elevator horn screw plate will under covering CyA Lite Ply base fin construction selfexplanatory Installing hardware decided verted mounting engine can also installed either upright sidewinder position Tank position will vary accordingly used small 2-oz Per fect Brand metal tank replumbed rear pickup top vent small Sullivan RC 130 Model Aviation Ultimate Model 310 courtesy Jim Ifatt/Seneca II courtesy C & K Ventures Last An Automatic Full-Feathering Adjustable Pitch Propeller An exclusive 4patented mechanism lets adjust pitch 8-40 optimum perfor mance blades automa tically feather motor stops reduce drag give much Recommended 72-80 motor gliders similar models wing AZV loads up 14 ozI sq ft 05 direct drive systems e shaft Stock No MAO8XXE $2495 Suggested Retail Available Through Leading Distributors WINDSOR PROPELLER CO 384 Tesconl Ct Santa Rosa CA 95401 tank will also fit throttle system used has throttle cable enclosed nylon rod battery should placed alongside tank far forward possible Du-Bro switch mount positioned scrap filler model used 14 x 14-in balsa pushrods EZ connectors servo arm other threaded wire clevis Nylon rods could also used rudder unit does exit top fuselage Sportwagon must balance shown plans came out needing ballast however other engine-ALSO AERONCA Li6B/CHAI84 IN VULT BT-13 VALIANT 84 IN SPAN and-equipment combinations may require adding ballast nose tail Continued page 132 Safe Flying No Accident 4 Fokker D-VII VK Model Aircraft PO Box 3007 Aurora IL 60505 312-357-1883 F iA SCAlE SPT SCALE AONCA L3/EIThlDEE 105 IN 2 CYClE 90-13 /1 4 CYClE 12-18 ROLIiD PLAN SETS------- $20 EACH FIBERGLASS CCWIS--------- 20 EACH ADD 120SHPDlGNYS ADD 8QTAX AERO PLANS N PARTS PO BOX 939 OIEAN NY 14760 716 372 / April 1988 131 GATOR RIC PRODUCTS An new Tiger Tail 120 four strokes piped 60 two strokes beautiful performer competition just showing offl balsa kit machined wood parts complete hardware package includes plug-in adjustable stab parts new wing mounts Wing Span -72 inWing Area- 860 sq Complete Delux KitSI 5995 TIGER TAIL 4S DELUX ALL BALSA KIT PLUG-IN ADJUSTABLE STAB KIT last can optimize stab incidence best flight charac teristics pair glass filled nylon adjusters Included provide micro screw adjustment smaller front tube Main tube aluminum matching phenolic socket TRANSMITTER CASE An inexpensive rugged molded case protect expensive transmitter both two stick single stick transmitters Brown leather grain aluminum trim locking clasp S 1895 WING TUBE & SOCKETS Aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wing structure Now size models 718 dia 25 895 t/diax25 995 diax3S1495 feather Ilte glass cloth 7 az/sq yd est weave Fastest Filling test Finished Weight Big 3 Sq Yard Pkg Detailed Instructions S895 ENGINE SLEEVE & BEARING PULLER Pull sight sleeves bearings easily out damage new 60s 17MM rear bearings Sleeve Puller5 795 Bearing Puller5 695 Bothpor51395 IVANS MAGIC GADGET protractor device used Ivan Kristensen accurately measure aileron elevator rudder throw Takes guess work out tool complete instrutnons log trimming out airplane quality book carrying caseS 795 NEWI WING MOUMING SET wing mounting system developed Ron Chidgey fast neat accurate stays tight Three nylon brackets screws machined wood wing blocks included S 595 READY TO FLY Call 1-800-45-TO FLY *LOW PRICES *EASY TO ASSEMBLE *NO BUILDING *NO PAINTING Piper Cherokee-40 Piper Gherokee-25 Fokker E111-40 Fancy Stick-25 Cessna 172-20 engine included Zh SUNSHINE HOBBY 17721 South Western Avenue Gardena California 90247 Check free movement controls set up throws Covering Following usual practice used transparent MonoKote Cal sug gested lightweight silk tissue however model certainly would delightful covered silk new iron-on fab rics transparent colors would also viable alternative sprayed Poly U trim over Mono Kote light rubbing 000-grade steel wool aids adhesion preference Sig Stripe Rite masking Brushing coat Sig clear Skybrite great preventing bleeders also used Stripe Rite pin stripes letters vinyl stick-on ones office supply store Banner wheels used prototype certainly add appearance points used samples new hinge material model recommend Klett Sig pinned hinges safeguard drill hole insert small piece toothpick securing CyA covered Sportwagon RC equipment place hadnt done way quite some time really simpler easier effort Cut window holes out shrunken MonoKote Cut window plastic out line over plans using Wilhold RC 56 ad hesive secure windows inside frame windscreen will need trimmed slightly good fit Position inside ply rear onto tiny cut outs MonoKote Stripe Rite tape used joint primed tank engine compart ments Skybrite painted Poly U Flying Remember used fly sport Free Flight dream day wed able make turn back land feet Want bet thought went around Cal Smiths mind 1948 Well golly 37 years later can know some purists detest contra diction term what have RC-assisted Free Flight incarna tion Cals sexy little Free Flight gets fly around merrilyand get watch giving occasional directional changes $12999 $9599 $11999 $6999 $9999 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 POXY PRIMER K&B SUPER POXY PAINT 168 MIXING CUPS ground Point nose wind advance power up away goes radio may needed slight course corrections might change elevator bit adjust rate climb keep soaring too high flies adjust chugging around looking pretty re alistic air isnt what youre after use Sportwagon practice maneuvers like stall turns yes lazy loops model has excellent versatility Cal Smith did homework well Men Cal Smiths extraordinary gifts energy dont come along very often Artist author model designer Cal sort Renaissance man model avia tion closing 1969 tribute Model Airplane News excerpted above Bill Win ter declared Forgotten Cal will never hope updating Sportwagon will help keep memory its designer alive Radio Technique/Myers Continued page 33 Tach 2 still works must good idea Thanks Bob Making use idea presented column back October 79 Accu-Tach 2 handbook suggests used evaluate RC system installation cut battery lead aileron adapter cable con nect cut ends milliamoneter like Accu Tach 2 Put adapter between flight pack switch harness Turn transmitter receiver observe current being drawn try control its extreme position trim available same extreme can stall servo position will see amps jump way up stay up warning reset throttle stop clear epoxy out binges make additional clear ance pushrods etc can put modi fied aileron extender cable between servo receiver evaluate particular servo instal lation problems may work system installation insertion resistance Accu Tach 2 oscillator strobes display may drive system instability happens youll have make measure ment analog VOM kind pointer using 500 mA range 132 Model Aviation unuu ruriurmance System TOP PERFORMANCE K&B ENGINES AkplaneMauine K&B FUELS168 GLOW PLUGS 9 Blends4 Choices See Dealer Order Direct Inciude S2 Per Item UPS GATOR RIC PRODUCTS 3713 Pompano Dr acola FL 32514 l 476-8639
Edition: Model Aviation - 1988/04
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 128, 130, 131, 132
NO OCR TEXT NO OCR TEXT days standards can speculate what provocative idea must have seemed 35 years ago Other CL subjects mentioned F-86 Sabre fitted Dyna Jet fourengined Consolidated B-24 Cal did accom panying cover illustrations both planes originally appeared American Modeler Also shown Blunderbus October 1953 issue Air Trails forerunner American Modeler Blunderbus Free Flight cutie de signed around 1/2A engines just introduced time simple model embellished Cals artwork form isometric drawing wire cabane system parasol Blunderbus spotlighted several years ago yet another magazine resur rected RC sport plane Cal fact himself no stranger RC airplanes Se lected Annual single-channel K&B 13-powered Monocoupe 90 optional trike gear no less Janu ary 1955 issue other examples expertise RC abound Cal designed Wonderwings bipe Aeronca Champ two-foot scale Fokker D-8 Sopwith Bipe latter very earliest Giant Scale models interest RC extended model boats well publishing such di verse things surface submarine bunker boat missile ship collabo ration Frank Lashek some thing pioneer Annual spotlighted Cals Maverick unlimited hydro arti cle included line drawings construc tion well charcoal illustration boat running across pond opera tor thumbing merrily away singlechannel transmitter Other artworks featured An nual Meyers Little Toot pro file Little Toni both like F-86 Sabre Consolidated B-24 paired cover illustrations origi nal issues Cal earned immense distinction illus trator vivid artwork added singular dimension construction articles equaled few others either before since brilliant use subtle color coupled incredible accuracy novel way expressing movement has sel dom duplicated Cals cutaway per spective drawings compare favorably late Hank Clark cover art adorned faces innumerable maga zines notably American Aircraft Modeler 26 Model Aviation alternative power uoc iriu d Davis Dieselised 05 iu model small enough held inverted easily improved starting diesel engine swings large prop its size its torque makes Sportwagon ideal combination Flying Models otten swapped construction articles British modeling publications time cover annual plans books Cal Smith starting ignition engine original Sportwagon FUAoved super running engine tiuu perhaps bit too much such light model Sportwagon ca pable steep climbs half throttle elevators built integraiiy witn rudder pushrod passes through slot stab cut out hinged Mild aerobat fuselage top Small control horns should ics can done clevis connected used give rudder plenty throw bottom elevator horn Lett Uoc relers mo mis memnou urn grabber has used several designsproblems certainly makes clean wing mourn wirnuxtra effort Right Ace Bantam Midget servos 250 mAh batttry md Silver Seven receiver fit nicely fuselage Note wing dowel detail CAL SMITHS SPOR1WAGON DEVELOPED FOR R/C BY DR DBMATHEWS 3/16 PLY GRABBER 1/16 BALSA RIBS 3/16 SQ BALSA FRE 1/i SQ SQ BALSA FPE 1/1 x 3/16 BALSA 5156 STRINGEBS 1/3 x 1/2 BALSA SPAB \\ 8D1A I11A 3/16 x IA 3/32 PLY 3/16 PLY 2 3/16 SQ 1/A x 1/2 IL 3/16 x 3/32 SPABS l/I6SQBALSASPPdI 2 Its beauty like keeps selling translucent coverings such gorgeous ar rangement sticks could bear hide structure typical of Cals de signs provides rugged strength penalty excessive weight Doc decided modify original symmetrical airfoil stab easier-to-build flat-bottom section Among diverse cover subjects B-57s P-47s Fokker D-8 Goodyear rac ers missile cruiser X-15 Unlim fin rudder constructed lami nating strips balsa soaked ammonia water make flexible Spreading phatic resin Elmers glue along seams bonds laminations formed plans around piece foam board ited Hydro Sopwith Pups Stitts Playboy Glenn Curtiss racing Barney Oldfields old Number 99 action flight settings incredible beauty often companion model design article same issue magazine Although Cal Smith gave countless hours pleasurable building reading Im no way authority life character remarkably accomplished man Fellow modeler Bill Winter other hand knew Cal well fact Bill Cals earliest influential mentors Bill Cal Boys Bills eulogy former pupil lifelong friend October 1964 issue Model Airplane News have suffered inestimable loss almost long can remem ber source numberless de nose made %-in balsa sheeting carved sanded aesthetic shape Cals artistic eye originally provided Note bottom support piece windshield S/lB 3/32 BALSA SPARS TOP ORLY 3/lA BALSA SHEET /iII 3/1655 BALSA SPARS TOP 6 BOTTOM I/B I/2 BALSA 3PM BOTTOM ORLY 3116 BALSA SHEET \ S/lA BALSASTAB CENTERSLOT FOR FILLSETIOH RIBPINK va BALSA ~4tzEI~ TYPICAL HINSEfr~I 1/16 BALSA SHEET TOP B BOTTOM WING TILT /IA BAL~L FILL -ELEVAT0R4 3/IA PILL LAM PARS X-SECT STAB TIP THREE 3/IA 3/B BALSA DOWEL I/B 3/IA1 BALSAGRABBER 1/64 PLYWINS FRAMES/IA DO X-SECTINNER FRAME 1/B S/B V1EFILL LOOBINS FORWARD F-3 -SIS 91219 THS BU REAR WING MOUII 3/IA PLY ETAIL I1SO 5 BALSA 1/B SIA MUSIC WIRE LANDING GEAR DETAILBOTi 1/B 3125436 signs articles illustrations cover paint ings box wraps books helped make hobby others enjoyable light us saw re member him Cals versatility however went beyond things always surprised constant excursions other things instant au thentic expert exhibited typical interest thing around himhe expert scuba diving spearfishing ice boating wonderfully self-illustrated books equaled surpassed what gone before fields first recollection Cal goes back 1945 aviation editor met him through MAN cover artist Jo Kotula Smitty just out Air Force during WW H participated prepa ration flying safety manuals could ask man anything tackled it done perfection drew Smog Hog plans wrote getting-started article painted cover did how-to28 Model Aviation Full-Size Plans Available. See Page 172 SO SA IS TSP SflOM 3/INI/2 3/B BALSA SA I/4I/2 BALSA LEADING EDGE 1/4 BALSA BALSA TILT WITH 26WING TILTWING PLAN TOP VIEW 3/IN 55 BALSA TOP ONLY 3/16 BALSA GADGETS - NGTIH 3/16 BALSAGTA RIBSHARSWODD-SHhE 3 EDGEI/IN BALSATO YE STOCKS/IN PLY _________________________MOTOR MOUNT 3LAMSqF V16 3/IN BALSA F-2 liltILFIREWALL E4 3/165/BS/RSO ALSABASSWOODLITE PLYTYPICAL 3/4SERVO RAILSERVO OCKF-SA/7 3/B BALSA SHEET COWL CHEEKSF4 DOWELI/B 3/16 BALSA 015 CLEAR1/64 PLYSIDE STRINGERS WINDSCREENS1/4 1/2 SPRUCE WITh PLASTICFRAMEB 32 NYLON BOLT INTO DIG DH-219 BLOCK-UNDER 3/32 BALSA SHEETSCRAP FILL 3/323/16 S/B/006 CLEAR//B LSA3/16 50 BALSA SCRAP /WINDOWS/PR ME SHEET FILL -I--- TEETFILL--1/ii AL BRAIN PULTjI~/_ IOTOIGP3 NEp4pF-NF F-N 3/IN BALSAI/B 3/16 BALSA FILL / YE PLY SCRAP BALSA/SERVO RAILS COHERING SUPPORTII/B 5116SIDE MUSIC WIREFUSELAGEVIEW THIN PLY OR 2-1/2 5116BALSA PAIRING WHEELSIAPTIONALI -S/32 BALSA SHEET RIB 3/32 BALSA TIP RIBS ARE SET ON TOP OF REAR SPAR-PALL OTHER SPARS DOWN ONTO TIP __- __ II __ 11IIll ItIll1 _____ II r iii ________ ____l'i ir I/I BALSA T E STOCKWING TIP DETAIL I3/16 BALSA SHEETSANS AFTER ASSEMBLY 5/16 50 BALSA F- 7 3/16 BALSA SHEET___________________ 015 CLEAR PLASTIC WINDSCREEN PAT 5/IN BALSA SHEET FILL STABILIZER MOUNT 3/16 SO BALSK S/IN 3/B 3/16 BALSABALSA S AD SET 3/16 50/ BALSA / FIN I/B S/IN~BALSA S/IN BALSA SHY THREE JAMINTONS OF 1/16 3/16 BBLSA FORMED DEFLE CT IONS RUDDER I/2LB B ELEVI/ZUBD RuDRND DIG SHORT PUSHNOD EDIT RIGHT SIDE I/IN DIA MWNO MODEL AVIATION CAL SMIThS SPORT WAGON 3/16 BALSA SHEET FROM FLYING MODELS AUG 1948 DEVELOPED FOR R/C BY DR 0 9 MATHEWS TRACING BY JOE DEMARCO do-it sketch model book fullcolor illustration Colliers hard cover work scholarly book world plastic kit box wrapthe result above criticism' recently letter sent response photos Sportwagon Bill put incisively Cal Smith God de stroyed mold History Sportwagon Bill Winter re calls sitting Cals home evening said Cal ought de sign sexy little Free Flight Cal took bait published result Flying Models magazine during stint technical editor late Forties Certain models linger ones mind seem ingly forever often submerged sub conscious just awaiting chance burst back awareness again Sportwagon case point Although planes 1948 Flying Models debut im pressed enormously its distinctive attractive appearance point career Id lost interest Free Flight transferred enthusiasm Control Line obviously attraction held never got around building Sportwagon original plans still wasnt about let go August 1948 Flying Models featured Cals construc tion article magazine carted over country us 1977 British friend Ray Hull sent magazine collection Included incredibly interesting batch British mags 1949 edition Model Plans An nual serieswith black-and-white photo Cal Smith starting Sportwagon cover Inside reprint Flying Models articles appears British Model Aviation series American magazine Flying Models often crosspublished others designs same Annual fact also contained Walt Schro ders Jersey Javelin 1949 British publication turned out catalyst needed Out subcon scious Sportwagon tumbled right away came inspiration adding RC sist Cal alive today thought might well redesign sexy little Free Flight RC sport didnt self try make everything Cal would have wanted hope Ive achieved objective first impulse enlarge 54-in prototype reconsidered stayed Cals original wingspan dimension Cals classic force-moment arrangement sport Free Flight works wonderfully RC conversion 61 aspect ratio 1 per ft span dihedral 45% tail mo ment arm 33% tail area 7% fin area add up delightful model Other pertinent design factors Underpower model using power loading 150 200 oz per cu engine Build wing loading 7 11 oz per sq ft area Use tough covering undercarriage Somehow parameters seem have etched subcon scious right along Sportwagon else explain appear over April 1988 29 TA CENTER SECT RIB 5/32 PLY JOINER 3/IN PLY GRABBER F-S / TAPER I/B SO BALSA BOTTOM STRINGERS SPECIFICATIONS ENGINEID TO 15 WEIGHT3D OZ WING CHORD9-1/4 WING SPAN 54 WING AREA 330 SOFT WING IAAflIfl /SSFT 30 Model Aviation over again own designs Cal powered prototype Bantam 19 ignition also known use Forster 29 British Model Plans Annual suggested using E D Comp Spe cial Mills 24 Ailbon 28 K Vulture Ive found diesel engine roughly 15 Cu capacity fits Cals inten tions closely Forster 29 can envision RC Sportwagon having appeal several different groups mod elers slowly growing numbers Nos talgia RC enthusiasts would certainly interested Old-timers share rever ence original Sportwagon would want try RC version too Maybe modeler whos just shopping really sexy-looking sport RC would also find filled bill Whoever whatever reason build yourself Sportwagon Construction Cyanoacrylate CyA primary adhesive used throughout Ali phatic resin Sig Bond etc used lam inate various outlines five-minute epoxy adhere plywood parts wood balsa unless otherwise speci fied use medium-weight C grain Strip wood should clear knots also medium weight customary Cals models structure strong side same time well stressed relatively easy fabricate Wing Develop master plywood rib tem plate tracing onto wood placing car bon paper between latter underside plans Use pattern stack cut ribs Alternatively cut out knife using metal template Wing tip segments constructed same way should preassembled before installation Notch trailing edge stock razor saw better yet blade reversed jigsaw Taper rear spar before assembly order have reference point tip Build center section integrally left panel making sure ribs ver tical contrast tilt outboard rib has set jig Place scraps 346-in sheet under leading edge assembly building sur face Lay wings down working spars forward making sure ribs positioned properly tip ribs can trimmed master ribs slic ing bottom center section leading edge filler sheet best left uncontoured until wing panels have joined Obviously out board filler should cut match cline ribs After sanding dihedral bevel block against table face join panels using five-minute epoxy clothespins Custom fit ply dihedral brace wing cutting slot through ribs against spar faces Hacksaw blades taped together work well Slide Continued page 128 PRECISION MODEL PRODUCTS 4ff pM Made USA BARSTOCK Retail Approx Pert No SizePrice Weight TT-1 50-B. 1-1/2$1395. 058 oz TT-1 75-B . 1-3/41495 095 oz TT-200-B .21595. 100 TT-225-B 41895. 155 TT-226-B 4 FAll1895. 145 -2B. 2-1/21895. 188 TT-251-B 2 FAll2095. 166 oz TT-275-B. 2-3/42295 215 TT-276-B. 2-3/4 FAll2495 200 TT-300-B 32695 258 os TT-301-B 3 FAIl2895 247 oz TT-325-B 43695. 340 az 3 Pieces Cone Back Plate Retainer Screw Nate 3 4 Blade Spinners Available Sizes Add $300 Per Spinner Available Sizes Add $300 Per Spinner PROP NuT AflAPTOR Retell Approx Pert No SizePrice Weight TT-140-A. 1/4-28$495 061 TT-147-A 1/4-28/7mm 495 061 oz TT-610-A mm495. 063az TT-710-A mm495. 082os fl-51 6-A 5/16-24495. 076 fl-810-A mm495. 076oz TT-825-A. 8 xl 25mm.. 495. 075 os TT-375-A. 3/8-24595 Os lT-125-A l2Smm. 595. 1lSos 3 Piece Set Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 FOAM WING CORES SEND 150 FOR DESCRIPTIVE PRODUCT CATALOG u.umuummmuinuummuuuuuuuuuua U FU U U PRECISION MADE EXPANDED BEAD POLYSTYRENE REPLACEMENT WING & STAB CORES FOR ALL POPULAR R/C AIRCRAFt OVER 250 DIFFERENT WINGS U IN STOCK FOR IMMEDIATE DELI VERK SO IF FAVORITE BIRD THAT NEEDS WING CALL ORI I IU ___________________________ ii U U U U U IUUEEEEEUUUEEUUUUUUUUUUUEUUUUUUUUEUEEUEUI WYiV MF6 WING MFG PO BOX 33 CRYSTAL LAKE IL 60014 beck suggest two D-cells would give few spurts amperage poop out also phoned explain problemand backed up sending Eveready 15-volt battery couldnt obtain elsewhere battery hard find can bet sent letter Union Carbide Corp ask no #1S6 1-volt batteries hobby shopsand no advertis ing modeling magazines Its item surely need second problem Cox Black Widow 049 Murphy claimed screw just vanished held backplate fuel tank en gine No magnet could find sent Cox Hobbies letter requesting screw Black Widow 049 enclosed $100 cash Several weeks later received current catalog price list packet screws parts 049 overhaul kit retailing $105 No payment due Golly old veterans heart goes out two American manufacturers gratitude help gave freely Lee Hoffman Banning CA two firms representative aeromodeling field really strive high level customer satisfac tion Maybe thats because run modelers modelers us con sumers really quite lucky know have quality things can pur chase make modeling easier and/or enjoyable Sportwagon/Mathews Continued page 30 ply blank slot mark oufline pencil Cut out epoxy place install grabber time Carve sand leading edge tips trailing edge contour Although Cal covered leading edge 2 sheeting obvious reasons doesnt suit present purposes Fuselage Standard box-type construction employed frame built over other using scraps masking tape prevent sticking substituted mod ern radial mount breakaway engine beams prototype Its good idea assemble form ers bulkheads fuselage frames curing Again use carbon paper build jig frames #3 #4 directly over drawings Remove frames pop apart using table knife Sand bevel tail posts place right frame over drawing Trial fit adjust formers necessary fit snugly frame tach CyA making sure right angles planes Install left frame onto formers checking alignment triangle etc prefer leave box building sur face jacking up tail post exactly one-half fuselage width Glue left frame place cut crosspieces pairs using top view guide An alternative method would involve re moving box setting directly over top view constructing either case sure tail post center midline stab seat level Bend landing gear over drawing using large vise-grip pliers bench vise cutoff wheel also useful attempt rebend mistake just toss start over unit held #3 nylon clips Its wise predrill #3 before installing gear Attach bottom formers stringers Moisten top sheeting ammonia water pull down over firewall former side stringers taper rear filler strips around win dows taper up wing seat CyA 1/64 ply window frames stringer filler strips Sheet plastic windows will attached inside frames after fuselage has covered makes very neat easily installed window treatment Attach wing saddle fillers dowel five-minute epoxy Make sure dowel center runs level along both planes Joining wing fuselage Hold 128 Model Aviation WHEN USING THE CK-3 ONLY THE SIZE IS DIFFERENT win Engine Control Normal single throttle stick control over both engines Absolute engine synchronization advanced throttle settings via small adjustments RUDDER trim Realistic outboard engine advancement during turns taxi throttle settings via RUDDER control Completely realistic 1141 scale engine control during taxz synchronization flight finally available Works radio system digital CMOS No tuned circuits Installation instructions included -NOT simple coupling device Advancing engine does NOT retard other engine Order CK-3 just $4995 S&H C & K Ventures / 1807 Park / Laramie WY / 82070 Phone 307-745-7557 Order 24 hours day Please call write complete information add just device dream RC twin quest absolute realism onel 'grabber against ply brace clamps slide wing over front dowel Adjust center section wing parallel fuselage sides Use piece heavy string has pinned tail post check wing exactly right angles fuselage Measure common point both tips tail post adjusting until exactly Mark point grabber epoxy joiner Return wing seat recheck string Using drill size corresponding nylon bolt drill down through hardwood trail ing edge underlying hardwood block Screw bolt pre-tapped Sig block pull up against hardwood wing saddle hit CyA tapped hole bolt could used instead hardwood rear saddle would probably need thicker stock Initially tried Cals rubberband wing hold-on technique unable keep wing sliding rear Perhaps single dowel running forward have grabber dowel would work Empennage original Sportwagon used symmetrical stab section con structing joining fuselage used flat-bottom section sake simplicity also chose flat fin-rudder sembly airfoil Make laminated outlines moisten ing strips balsa ammonia water spreading aliphatic resin along seams laminations formed either over plans using pins along perime ter over foam board patterns horizontal stabilizer ribs con structed much same manner wing ribs Lay sheet center section down add spars ribs leading trailing edges Use straightedge mark cut %-in slots ribs two hinge line spars CyA place trim edges tips install Use sanding block final contouring hinge spars match ribs Add top center section sheeting al lowing fin slot After final sanding sep arate elevator portion cut slots hinges install perma nently Since elevator horn screw plate will under covering CyA Lite Ply base fin construction selfexplanatory Installing hardware decided verted mounting engine can also installed either upright sidewinder position Tank position will vary accordingly used small 2-oz Per fect Brand metal tank replumbed rear pickup top vent small Sullivan RC 130 Model Aviation Ultimate Model 310 courtesy Jim Ifatt/Seneca II courtesy C & K Ventures Last An Automatic Full-Feathering Adjustable Pitch Propeller An exclusive 4patented mechanism lets adjust pitch 8-40 optimum perfor mance blades automa tically feather motor stops reduce drag give much Recommended 72-80 motor gliders similar models wing AZV loads up 14 ozI sq ft 05 direct drive systems e shaft Stock No MAO8XXE $2495 Suggested Retail Available Through Leading Distributors WINDSOR PROPELLER CO 384 Tesconl Ct Santa Rosa CA 95401 tank will also fit throttle system used has throttle cable enclosed nylon rod battery should placed alongside tank far forward possible Du-Bro switch mount positioned scrap filler model used 14 x 14-in balsa pushrods EZ connectors servo arm other threaded wire clevis Nylon rods could also used rudder unit does exit top fuselage Sportwagon must balance shown plans came out needing ballast however other engine-ALSO AERONCA Li6B/CHAI84 IN VULT BT-13 VALIANT 84 IN SPAN and-equipment combinations may require adding ballast nose tail Continued page 132 Safe Flying No Accident 4 Fokker D-VII VK Model Aircraft PO Box 3007 Aurora IL 60505 312-357-1883 F iA SCAlE SPT SCALE AONCA L3/EIThlDEE 105 IN 2 CYClE 90-13 /1 4 CYClE 12-18 ROLIiD PLAN SETS------- $20 EACH FIBERGLASS CCWIS--------- 20 EACH ADD 120SHPDlGNYS ADD 8QTAX AERO PLANS N PARTS PO BOX 939 OIEAN NY 14760 716 372 / April 1988 131 GATOR RIC PRODUCTS An new Tiger Tail 120 four strokes piped 60 two strokes beautiful performer competition just showing offl balsa kit machined wood parts complete hardware package includes plug-in adjustable stab parts new wing mounts Wing Span -72 inWing Area- 860 sq Complete Delux KitSI 5995 TIGER TAIL 4S DELUX ALL BALSA KIT PLUG-IN ADJUSTABLE STAB KIT last can optimize stab incidence best flight charac teristics pair glass filled nylon adjusters Included provide micro screw adjustment smaller front tube Main tube aluminum matching phenolic socket TRANSMITTER CASE An inexpensive rugged molded case protect expensive transmitter both two stick single stick transmitters Brown leather grain aluminum trim locking clasp S 1895 WING TUBE & SOCKETS Aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wing structure Now size models 718 dia 25 895 t/diax25 995 diax3S1495 feather Ilte glass cloth 7 az/sq yd est weave Fastest Filling test Finished Weight Big 3 Sq Yard Pkg Detailed Instructions S895 ENGINE SLEEVE & BEARING PULLER Pull sight sleeves bearings easily out damage new 60s 17MM rear bearings Sleeve Puller5 795 Bearing Puller5 695 Bothpor51395 IVANS MAGIC GADGET protractor device used Ivan Kristensen accurately measure aileron elevator rudder throw Takes guess work out tool complete instrutnons log trimming out airplane quality book carrying caseS 795 NEWI WING MOUMING SET wing mounting system developed Ron Chidgey fast neat accurate stays tight Three nylon brackets screws machined wood wing blocks included S 595 READY TO FLY Call 1-800-45-TO FLY *LOW PRICES *EASY TO ASSEMBLE *NO BUILDING *NO PAINTING Piper Cherokee-40 Piper Gherokee-25 Fokker E111-40 Fancy Stick-25 Cessna 172-20 engine included Zh SUNSHINE HOBBY 17721 South Western Avenue Gardena California 90247 Check free movement controls set up throws Covering Following usual practice used transparent MonoKote Cal sug gested lightweight silk tissue however model certainly would delightful covered silk new iron-on fab rics transparent colors would also viable alternative sprayed Poly U trim over Mono Kote light rubbing 000-grade steel wool aids adhesion preference Sig Stripe Rite masking Brushing coat Sig clear Skybrite great preventing bleeders also used Stripe Rite pin stripes letters vinyl stick-on ones office supply store Banner wheels used prototype certainly add appearance points used samples new hinge material model recommend Klett Sig pinned hinges safeguard drill hole insert small piece toothpick securing CyA covered Sportwagon RC equipment place hadnt done way quite some time really simpler easier effort Cut window holes out shrunken MonoKote Cut window plastic out line over plans using Wilhold RC 56 ad hesive secure windows inside frame windscreen will need trimmed slightly good fit Position inside ply rear onto tiny cut outs MonoKote Stripe Rite tape used joint primed tank engine compart ments Skybrite painted Poly U Flying Remember used fly sport Free Flight dream day wed able make turn back land feet Want bet thought went around Cal Smiths mind 1948 Well golly 37 years later can know some purists detest contra diction term what have RC-assisted Free Flight incarna tion Cals sexy little Free Flight gets fly around merrilyand get watch giving occasional directional changes $12999 $9599 $11999 $6999 $9999 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 POXY PRIMER K&B SUPER POXY PAINT 168 MIXING CUPS ground Point nose wind advance power up away goes radio may needed slight course corrections might change elevator bit adjust rate climb keep soaring too high flies adjust chugging around looking pretty re alistic air isnt what youre after use Sportwagon practice maneuvers like stall turns yes lazy loops model has excellent versatility Cal Smith did homework well Men Cal Smiths extraordinary gifts energy dont come along very often Artist author model designer Cal sort Renaissance man model avia tion closing 1969 tribute Model Airplane News excerpted above Bill Win ter declared Forgotten Cal will never hope updating Sportwagon will help keep memory its designer alive Radio Technique/Myers Continued page 33 Tach 2 still works must good idea Thanks Bob Making use idea presented column back October 79 Accu-Tach 2 handbook suggests used evaluate RC system installation cut battery lead aileron adapter cable con nect cut ends milliamoneter like Accu Tach 2 Put adapter between flight pack switch harness Turn transmitter receiver observe current being drawn try control its extreme position trim available same extreme can stall servo position will see amps jump way up stay up warning reset throttle stop clear epoxy out binges make additional clear ance pushrods etc can put modi fied aileron extender cable between servo receiver evaluate particular servo instal lation problems may work system installation insertion resistance Accu Tach 2 oscillator strobes display may drive system instability happens youll have make measure ment analog VOM kind pointer using 500 mA range 132 Model Aviation unuu ruriurmance System TOP PERFORMANCE K&B ENGINES AkplaneMauine K&B FUELS168 GLOW PLUGS 9 Blends4 Choices See Dealer Order Direct Inciude S2 Per Item UPS GATOR RIC PRODUCTS 3713 Pompano Dr acola FL 32514 l 476-8639
Edition: Model Aviation - 1988/04
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 128, 130, 131, 132
NO OCR TEXT NO OCR TEXT days standards can speculate what provocative idea must have seemed 35 years ago Other CL subjects mentioned F-86 Sabre fitted Dyna Jet fourengined Consolidated B-24 Cal did accom panying cover illustrations both planes originally appeared American Modeler Also shown Blunderbus October 1953 issue Air Trails forerunner American Modeler Blunderbus Free Flight cutie de signed around 1/2A engines just introduced time simple model embellished Cals artwork form isometric drawing wire cabane system parasol Blunderbus spotlighted several years ago yet another magazine resur rected RC sport plane Cal fact himself no stranger RC airplanes Se lected Annual single-channel K&B 13-powered Monocoupe 90 optional trike gear no less Janu ary 1955 issue other examples expertise RC abound Cal designed Wonderwings bipe Aeronca Champ two-foot scale Fokker D-8 Sopwith Bipe latter very earliest Giant Scale models interest RC extended model boats well publishing such di verse things surface submarine bunker boat missile ship collabo ration Frank Lashek some thing pioneer Annual spotlighted Cals Maverick unlimited hydro arti cle included line drawings construc tion well charcoal illustration boat running across pond opera tor thumbing merrily away singlechannel transmitter Other artworks featured An nual Meyers Little Toot pro file Little Toni both like F-86 Sabre Consolidated B-24 paired cover illustrations origi nal issues Cal earned immense distinction illus trator vivid artwork added singular dimension construction articles equaled few others either before since brilliant use subtle color coupled incredible accuracy novel way expressing movement has sel dom duplicated Cals cutaway per spective drawings compare favorably late Hank Clark cover art adorned faces innumerable maga zines notably American Aircraft Modeler 26 Model Aviation alternative power uoc iriu d Davis Dieselised 05 iu model small enough held inverted easily improved starting diesel engine swings large prop its size its torque makes Sportwagon ideal combination Flying Models otten swapped construction articles British modeling publications time cover annual plans books Cal Smith starting ignition engine original Sportwagon FUAoved super running engine tiuu perhaps bit too much such light model Sportwagon ca pable steep climbs half throttle elevators built integraiiy witn rudder pushrod passes through slot stab cut out hinged Mild aerobat fuselage top Small control horns should ics can done clevis connected used give rudder plenty throw bottom elevator horn Lett Uoc relers mo mis memnou urn grabber has used several designsproblems certainly makes clean wing mourn wirnuxtra effort Right Ace Bantam Midget servos 250 mAh batttry md Silver Seven receiver fit nicely fuselage Note wing dowel detail CAL SMITHS SPOR1WAGON DEVELOPED FOR R/C BY DR DBMATHEWS 3/16 PLY GRABBER 1/16 BALSA RIBS 3/16 SQ BALSA FRE 1/i SQ SQ BALSA FPE 1/1 x 3/16 BALSA 5156 STRINGEBS 1/3 x 1/2 BALSA SPAB \\ 8D1A I11A 3/16 x IA 3/32 PLY 3/16 PLY 2 3/16 SQ 1/A x 1/2 IL 3/16 x 3/32 SPABS l/I6SQBALSASPPdI 2 Its beauty like keeps selling translucent coverings such gorgeous ar rangement sticks could bear hide structure typical of Cals de signs provides rugged strength penalty excessive weight Doc decided modify original symmetrical airfoil stab easier-to-build flat-bottom section Among diverse cover subjects B-57s P-47s Fokker D-8 Goodyear rac ers missile cruiser X-15 Unlim fin rudder constructed lami nating strips balsa soaked ammonia water make flexible Spreading phatic resin Elmers glue along seams bonds laminations formed plans around piece foam board ited Hydro Sopwith Pups Stitts Playboy Glenn Curtiss racing Barney Oldfields old Number 99 action flight settings incredible beauty often companion model design article same issue magazine Although Cal Smith gave countless hours pleasurable building reading Im no way authority life character remarkably accomplished man Fellow modeler Bill Winter other hand knew Cal well fact Bill Cals earliest influential mentors Bill Cal Boys Bills eulogy former pupil lifelong friend October 1964 issue Model Airplane News have suffered inestimable loss almost long can remem ber source numberless de nose made %-in balsa sheeting carved sanded aesthetic shape Cals artistic eye originally provided Note bottom support piece windshield S/lB 3/32 BALSA SPARS TOP ORLY 3/lA BALSA SHEET /iII 3/1655 BALSA SPARS TOP 6 BOTTOM I/B I/2 BALSA 3PM BOTTOM ORLY 3116 BALSA SHEET \ S/lA BALSASTAB CENTERSLOT FOR FILLSETIOH RIBPINK va BALSA ~4tzEI~ TYPICAL HINSEfr~I 1/16 BALSA SHEET TOP B BOTTOM WING TILT /IA BAL~L FILL -ELEVAT0R4 3/IA PILL LAM PARS X-SECT STAB TIP THREE 3/IA 3/B BALSA DOWEL I/B 3/IA1 BALSAGRABBER 1/64 PLYWINS FRAMES/IA DO X-SECTINNER FRAME 1/B S/B V1EFILL LOOBINS FORWARD F-3 -SIS 91219 THS BU REAR WING MOUII 3/IA PLY ETAIL I1SO 5 BALSA 1/B SIA MUSIC WIRE LANDING GEAR DETAILBOTi 1/B 3125436 signs articles illustrations cover paint ings box wraps books helped make hobby others enjoyable light us saw re member him Cals versatility however went beyond things always surprised constant excursions other things instant au thentic expert exhibited typical interest thing around himhe expert scuba diving spearfishing ice boating wonderfully self-illustrated books equaled surpassed what gone before fields first recollection Cal goes back 1945 aviation editor met him through MAN cover artist Jo Kotula Smitty just out Air Force during WW H participated prepa ration flying safety manuals could ask man anything tackled it done perfection drew Smog Hog plans wrote getting-started article painted cover did how-to28 Model Aviation Full-Size Plans Available. See Page 172 SO SA IS TSP SflOM 3/INI/2 3/B BALSA SA I/4I/2 BALSA LEADING EDGE 1/4 BALSA BALSA TILT WITH 26WING TILTWING PLAN TOP VIEW 3/IN 55 BALSA TOP ONLY 3/16 BALSA GADGETS - NGTIH 3/16 BALSAGTA RIBSHARSWODD-SHhE 3 EDGEI/IN BALSATO YE STOCKS/IN PLY _________________________MOTOR MOUNT 3LAMSqF V16 3/IN BALSA F-2 liltILFIREWALL E4 3/165/BS/RSO ALSABASSWOODLITE PLYTYPICAL 3/4SERVO RAILSERVO OCKF-SA/7 3/B BALSA SHEET COWL CHEEKSF4 DOWELI/B 3/16 BALSA 015 CLEAR1/64 PLYSIDE STRINGERS WINDSCREENS1/4 1/2 SPRUCE WITh PLASTICFRAMEB 32 NYLON BOLT INTO DIG DH-219 BLOCK-UNDER 3/32 BALSA SHEETSCRAP FILL 3/323/16 S/B/006 CLEAR//B LSA3/16 50 BALSA SCRAP /WINDOWS/PR ME SHEET FILL -I--- TEETFILL--1/ii AL BRAIN PULTjI~/_ IOTOIGP3 NEp4pF-NF F-N 3/IN BALSAI/B 3/16 BALSA FILL / YE PLY SCRAP BALSA/SERVO RAILS COHERING SUPPORTII/B 5116SIDE MUSIC WIREFUSELAGEVIEW THIN PLY OR 2-1/2 5116BALSA PAIRING WHEELSIAPTIONALI -S/32 BALSA SHEET RIB 3/32 BALSA TIP RIBS ARE SET ON TOP OF REAR SPAR-PALL OTHER SPARS DOWN ONTO TIP __- __ II __ 11IIll ItIll1 _____ II r iii ________ ____l'i ir I/I BALSA T E STOCKWING TIP DETAIL I3/16 BALSA SHEETSANS AFTER ASSEMBLY 5/16 50 BALSA F- 7 3/16 BALSA SHEET___________________ 015 CLEAR PLASTIC WINDSCREEN PAT 5/IN BALSA SHEET FILL STABILIZER MOUNT 3/16 SO BALSK S/IN 3/B 3/16 BALSABALSA S AD SET 3/16 50/ BALSA / FIN I/B S/IN~BALSA S/IN BALSA SHY THREE JAMINTONS OF 1/16 3/16 BBLSA FORMED DEFLE CT IONS RUDDER I/2LB B ELEVI/ZUBD RuDRND DIG SHORT PUSHNOD EDIT RIGHT SIDE I/IN DIA MWNO MODEL AVIATION CAL SMIThS SPORT WAGON 3/16 BALSA SHEET FROM FLYING MODELS AUG 1948 DEVELOPED FOR R/C BY DR 0 9 MATHEWS TRACING BY JOE DEMARCO do-it sketch model book fullcolor illustration Colliers hard cover work scholarly book world plastic kit box wrapthe result above criticism' recently letter sent response photos Sportwagon Bill put incisively Cal Smith God de stroyed mold History Sportwagon Bill Winter re calls sitting Cals home evening said Cal ought de sign sexy little Free Flight Cal took bait published result Flying Models magazine during stint technical editor late Forties Certain models linger ones mind seem ingly forever often submerged sub conscious just awaiting chance burst back awareness again Sportwagon case point Although planes 1948 Flying Models debut im pressed enormously its distinctive attractive appearance point career Id lost interest Free Flight transferred enthusiasm Control Line obviously attraction held never got around building Sportwagon original plans still wasnt about let go August 1948 Flying Models featured Cals construc tion article magazine carted over country us 1977 British friend Ray Hull sent magazine collection Included incredibly interesting batch British mags 1949 edition Model Plans An nual serieswith black-and-white photo Cal Smith starting Sportwagon cover Inside reprint Flying Models articles appears British Model Aviation series American magazine Flying Models often crosspublished others designs same Annual fact also contained Walt Schro ders Jersey Javelin 1949 British publication turned out catalyst needed Out subcon scious Sportwagon tumbled right away came inspiration adding RC sist Cal alive today thought might well redesign sexy little Free Flight RC sport didnt self try make everything Cal would have wanted hope Ive achieved objective first impulse enlarge 54-in prototype reconsidered stayed Cals original wingspan dimension Cals classic force-moment arrangement sport Free Flight works wonderfully RC conversion 61 aspect ratio 1 per ft span dihedral 45% tail mo ment arm 33% tail area 7% fin area add up delightful model Other pertinent design factors Underpower model using power loading 150 200 oz per cu engine Build wing loading 7 11 oz per sq ft area Use tough covering undercarriage Somehow parameters seem have etched subcon scious right along Sportwagon else explain appear over April 1988 29 TA CENTER SECT RIB 5/32 PLY JOINER 3/IN PLY GRABBER F-S / TAPER I/B SO BALSA BOTTOM STRINGERS SPECIFICATIONS ENGINEID TO 15 WEIGHT3D OZ WING CHORD9-1/4 WING SPAN 54 WING AREA 330 SOFT WING IAAflIfl /SSFT 30 Model Aviation over again own designs Cal powered prototype Bantam 19 ignition also known use Forster 29 British Model Plans Annual suggested using E D Comp Spe cial Mills 24 Ailbon 28 K Vulture Ive found diesel engine roughly 15 Cu capacity fits Cals inten tions closely Forster 29 can envision RC Sportwagon having appeal several different groups mod elers slowly growing numbers Nos talgia RC enthusiasts would certainly interested Old-timers share rever ence original Sportwagon would want try RC version too Maybe modeler whos just shopping really sexy-looking sport RC would also find filled bill Whoever whatever reason build yourself Sportwagon Construction Cyanoacrylate CyA primary adhesive used throughout Ali phatic resin Sig Bond etc used lam inate various outlines five-minute epoxy adhere plywood parts wood balsa unless otherwise speci fied use medium-weight C grain Strip wood should clear knots also medium weight customary Cals models structure strong side same time well stressed relatively easy fabricate Wing Develop master plywood rib tem plate tracing onto wood placing car bon paper between latter underside plans Use pattern stack cut ribs Alternatively cut out knife using metal template Wing tip segments constructed same way should preassembled before installation Notch trailing edge stock razor saw better yet blade reversed jigsaw Taper rear spar before assembly order have reference point tip Build center section integrally left panel making sure ribs ver tical contrast tilt outboard rib has set jig Place scraps 346-in sheet under leading edge assembly building sur face Lay wings down working spars forward making sure ribs positioned properly tip ribs can trimmed master ribs slic ing bottom center section leading edge filler sheet best left uncontoured until wing panels have joined Obviously out board filler should cut match cline ribs After sanding dihedral bevel block against table face join panels using five-minute epoxy clothespins Custom fit ply dihedral brace wing cutting slot through ribs against spar faces Hacksaw blades taped together work well Slide Continued page 128 PRECISION MODEL PRODUCTS 4ff pM Made USA BARSTOCK Retail Approx Pert No SizePrice Weight TT-1 50-B. 1-1/2$1395. 058 oz TT-1 75-B . 1-3/41495 095 oz TT-200-B .21595. 100 TT-225-B 41895. 155 TT-226-B 4 FAll1895. 145 -2B. 2-1/21895. 188 TT-251-B 2 FAll2095. 166 oz TT-275-B. 2-3/42295 215 TT-276-B. 2-3/4 FAll2495 200 TT-300-B 32695 258 os TT-301-B 3 FAIl2895 247 oz TT-325-B 43695. 340 az 3 Pieces Cone Back Plate Retainer Screw Nate 3 4 Blade Spinners Available Sizes Add $300 Per Spinner Available Sizes Add $300 Per Spinner PROP NuT AflAPTOR Retell Approx Pert No SizePrice Weight TT-140-A. 1/4-28$495 061 TT-147-A 1/4-28/7mm 495 061 oz TT-610-A mm495. 063az TT-710-A mm495. 082os fl-51 6-A 5/16-24495. 076 fl-810-A mm495. 076oz TT-825-A. 8 xl 25mm.. 495. 075 os TT-375-A. 3/8-24595 Os lT-125-A l2Smm. 595. 1lSos 3 Piece Set Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 FOAM WING CORES SEND 150 FOR DESCRIPTIVE PRODUCT CATALOG u.umuummmuinuummuuuuuuuuuua U FU U U PRECISION MADE EXPANDED BEAD POLYSTYRENE REPLACEMENT WING & STAB CORES FOR ALL POPULAR R/C AIRCRAFt OVER 250 DIFFERENT WINGS U IN STOCK FOR IMMEDIATE DELI VERK SO IF FAVORITE BIRD THAT NEEDS WING CALL ORI I IU ___________________________ ii U U U U U IUUEEEEEUUUEEUUUUUUUUUUUEUUUUUUUUEUEEUEUI WYiV MF6 WING MFG PO BOX 33 CRYSTAL LAKE IL 60014 beck suggest two D-cells would give few spurts amperage poop out also phoned explain problemand backed up sending Eveready 15-volt battery couldnt obtain elsewhere battery hard find can bet sent letter Union Carbide Corp ask no #1S6 1-volt batteries hobby shopsand no advertis ing modeling magazines Its item surely need second problem Cox Black Widow 049 Murphy claimed screw just vanished held backplate fuel tank en gine No magnet could find sent Cox Hobbies letter requesting screw Black Widow 049 enclosed $100 cash Several weeks later received current catalog price list packet screws parts 049 overhaul kit retailing $105 No payment due Golly old veterans heart goes out two American manufacturers gratitude help gave freely Lee Hoffman Banning CA two firms representative aeromodeling field really strive high level customer satisfac tion Maybe thats because run modelers modelers us con sumers really quite lucky know have quality things can pur chase make modeling easier and/or enjoyable Sportwagon/Mathews Continued page 30 ply blank slot mark oufline pencil Cut out epoxy place install grabber time Carve sand leading edge tips trailing edge contour Although Cal covered leading edge 2 sheeting obvious reasons doesnt suit present purposes Fuselage Standard box-type construction employed frame built over other using scraps masking tape prevent sticking substituted mod ern radial mount breakaway engine beams prototype Its good idea assemble form ers bulkheads fuselage frames curing Again use carbon paper build jig frames #3 #4 directly over drawings Remove frames pop apart using table knife Sand bevel tail posts place right frame over drawing Trial fit adjust formers necessary fit snugly frame tach CyA making sure right angles planes Install left frame onto formers checking alignment triangle etc prefer leave box building sur face jacking up tail post exactly one-half fuselage width Glue left frame place cut crosspieces pairs using top view guide An alternative method would involve re moving box setting directly over top view constructing either case sure tail post center midline stab seat level Bend landing gear over drawing using large vise-grip pliers bench vise cutoff wheel also useful attempt rebend mistake just toss start over unit held #3 nylon clips Its wise predrill #3 before installing gear Attach bottom formers stringers Moisten top sheeting ammonia water pull down over firewall former side stringers taper rear filler strips around win dows taper up wing seat CyA 1/64 ply window frames stringer filler strips Sheet plastic windows will attached inside frames after fuselage has covered makes very neat easily installed window treatment Attach wing saddle fillers dowel five-minute epoxy Make sure dowel center runs level along both planes Joining wing fuselage Hold 128 Model Aviation WHEN USING THE CK-3 ONLY THE SIZE IS DIFFERENT win Engine Control Normal single throttle stick control over both engines Absolute engine synchronization advanced throttle settings via small adjustments RUDDER trim Realistic outboard engine advancement during turns taxi throttle settings via RUDDER control Completely realistic 1141 scale engine control during taxz synchronization flight finally available Works radio system digital CMOS No tuned circuits Installation instructions included -NOT simple coupling device Advancing engine does NOT retard other engine Order CK-3 just $4995 S&H C & K Ventures / 1807 Park / Laramie WY / 82070 Phone 307-745-7557 Order 24 hours day Please call write complete information add just device dream RC twin quest absolute realism onel 'grabber against ply brace clamps slide wing over front dowel Adjust center section wing parallel fuselage sides Use piece heavy string has pinned tail post check wing exactly right angles fuselage Measure common point both tips tail post adjusting until exactly Mark point grabber epoxy joiner Return wing seat recheck string Using drill size corresponding nylon bolt drill down through hardwood trail ing edge underlying hardwood block Screw bolt pre-tapped Sig block pull up against hardwood wing saddle hit CyA tapped hole bolt could used instead hardwood rear saddle would probably need thicker stock Initially tried Cals rubberband wing hold-on technique unable keep wing sliding rear Perhaps single dowel running forward have grabber dowel would work Empennage original Sportwagon used symmetrical stab section con structing joining fuselage used flat-bottom section sake simplicity also chose flat fin-rudder sembly airfoil Make laminated outlines moisten ing strips balsa ammonia water spreading aliphatic resin along seams laminations formed either over plans using pins along perime ter over foam board patterns horizontal stabilizer ribs con structed much same manner wing ribs Lay sheet center section down add spars ribs leading trailing edges Use straightedge mark cut %-in slots ribs two hinge line spars CyA place trim edges tips install Use sanding block final contouring hinge spars match ribs Add top center section sheeting al lowing fin slot After final sanding sep arate elevator portion cut slots hinges install perma nently Since elevator horn screw plate will under covering CyA Lite Ply base fin construction selfexplanatory Installing hardware decided verted mounting engine can also installed either upright sidewinder position Tank position will vary accordingly used small 2-oz Per fect Brand metal tank replumbed rear pickup top vent small Sullivan RC 130 Model Aviation Ultimate Model 310 courtesy Jim Ifatt/Seneca II courtesy C & K Ventures Last An Automatic Full-Feathering Adjustable Pitch Propeller An exclusive 4patented mechanism lets adjust pitch 8-40 optimum perfor mance blades automa tically feather motor stops reduce drag give much Recommended 72-80 motor gliders similar models wing AZV loads up 14 ozI sq ft 05 direct drive systems e shaft Stock No MAO8XXE $2495 Suggested Retail Available Through Leading Distributors WINDSOR PROPELLER CO 384 Tesconl Ct Santa Rosa CA 95401 tank will also fit throttle system used has throttle cable enclosed nylon rod battery should placed alongside tank far forward possible Du-Bro switch mount positioned scrap filler model used 14 x 14-in balsa pushrods EZ connectors servo arm other threaded wire clevis Nylon rods could also used rudder unit does exit top fuselage Sportwagon must balance shown plans came out needing ballast however other engine-ALSO AERONCA Li6B/CHAI84 IN VULT BT-13 VALIANT 84 IN SPAN and-equipment combinations may require adding ballast nose tail Continued page 132 Safe Flying No Accident 4 Fokker D-VII VK Model Aircraft PO Box 3007 Aurora IL 60505 312-357-1883 F iA SCAlE SPT SCALE AONCA L3/EIThlDEE 105 IN 2 CYClE 90-13 /1 4 CYClE 12-18 ROLIiD PLAN SETS------- $20 EACH FIBERGLASS CCWIS--------- 20 EACH ADD 120SHPDlGNYS ADD 8QTAX AERO PLANS N PARTS PO BOX 939 OIEAN NY 14760 716 372 / April 1988 131 GATOR RIC PRODUCTS An new Tiger Tail 120 four strokes piped 60 two strokes beautiful performer competition just showing offl balsa kit machined wood parts complete hardware package includes plug-in adjustable stab parts new wing mounts Wing Span -72 inWing Area- 860 sq Complete Delux KitSI 5995 TIGER TAIL 4S DELUX ALL BALSA KIT PLUG-IN ADJUSTABLE STAB KIT last can optimize stab incidence best flight charac teristics pair glass filled nylon adjusters Included provide micro screw adjustment smaller front tube Main tube aluminum matching phenolic socket TRANSMITTER CASE An inexpensive rugged molded case protect expensive transmitter both two stick single stick transmitters Brown leather grain aluminum trim locking clasp S 1895 WING TUBE & SOCKETS Aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wing structure Now size models 718 dia 25 895 t/diax25 995 diax3S1495 feather Ilte glass cloth 7 az/sq yd est weave Fastest Filling test Finished Weight Big 3 Sq Yard Pkg Detailed Instructions S895 ENGINE SLEEVE & BEARING PULLER Pull sight sleeves bearings easily out damage new 60s 17MM rear bearings Sleeve Puller5 795 Bearing Puller5 695 Bothpor51395 IVANS MAGIC GADGET protractor device used Ivan Kristensen accurately measure aileron elevator rudder throw Takes guess work out tool complete instrutnons log trimming out airplane quality book carrying caseS 795 NEWI WING MOUMING SET wing mounting system developed Ron Chidgey fast neat accurate stays tight Three nylon brackets screws machined wood wing blocks included S 595 READY TO FLY Call 1-800-45-TO FLY *LOW PRICES *EASY TO ASSEMBLE *NO BUILDING *NO PAINTING Piper Cherokee-40 Piper Gherokee-25 Fokker E111-40 Fancy Stick-25 Cessna 172-20 engine included Zh SUNSHINE HOBBY 17721 South Western Avenue Gardena California 90247 Check free movement controls set up throws Covering Following usual practice used transparent MonoKote Cal sug gested lightweight silk tissue however model certainly would delightful covered silk new iron-on fab rics transparent colors would also viable alternative sprayed Poly U trim over Mono Kote light rubbing 000-grade steel wool aids adhesion preference Sig Stripe Rite masking Brushing coat Sig clear Skybrite great preventing bleeders also used Stripe Rite pin stripes letters vinyl stick-on ones office supply store Banner wheels used prototype certainly add appearance points used samples new hinge material model recommend Klett Sig pinned hinges safeguard drill hole insert small piece toothpick securing CyA covered Sportwagon RC equipment place hadnt done way quite some time really simpler easier effort Cut window holes out shrunken MonoKote Cut window plastic out line over plans using Wilhold RC 56 ad hesive secure windows inside frame windscreen will need trimmed slightly good fit Position inside ply rear onto tiny cut outs MonoKote Stripe Rite tape used joint primed tank engine compart ments Skybrite painted Poly U Flying Remember used fly sport Free Flight dream day wed able make turn back land feet Want bet thought went around Cal Smiths mind 1948 Well golly 37 years later can know some purists detest contra diction term what have RC-assisted Free Flight incarna tion Cals sexy little Free Flight gets fly around merrilyand get watch giving occasional directional changes $12999 $9599 $11999 $6999 $9999 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 POXY PRIMER K&B SUPER POXY PAINT 168 MIXING CUPS ground Point nose wind advance power up away goes radio may needed slight course corrections might change elevator bit adjust rate climb keep soaring too high flies adjust chugging around looking pretty re alistic air isnt what youre after use Sportwagon practice maneuvers like stall turns yes lazy loops model has excellent versatility Cal Smith did homework well Men Cal Smiths extraordinary gifts energy dont come along very often Artist author model designer Cal sort Renaissance man model avia tion closing 1969 tribute Model Airplane News excerpted above Bill Win ter declared Forgotten Cal will never hope updating Sportwagon will help keep memory its designer alive Radio Technique/Myers Continued page 33 Tach 2 still works must good idea Thanks Bob Making use idea presented column back October 79 Accu-Tach 2 handbook suggests used evaluate RC system installation cut battery lead aileron adapter cable con nect cut ends milliamoneter like Accu Tach 2 Put adapter between flight pack switch harness Turn transmitter receiver observe current being drawn try control its extreme position trim available same extreme can stall servo position will see amps jump way up stay up warning reset throttle stop clear epoxy out binges make additional clear ance pushrods etc can put modi fied aileron extender cable between servo receiver evaluate particular servo instal lation problems may work system installation insertion resistance Accu Tach 2 oscillator strobes display may drive system instability happens youll have make measure ment analog VOM kind pointer using 500 mA range 132 Model Aviation unuu ruriurmance System TOP PERFORMANCE K&B ENGINES AkplaneMauine K&B FUELS168 GLOW PLUGS 9 Blends4 Choices See Dealer Order Direct Inciude S2 Per Item UPS GATOR RIC PRODUCTS 3713 Pompano Dr acola FL 32514 l 476-8639
Edition: Model Aviation - 1988/04
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 128, 130, 131, 132
NO OCR TEXT NO OCR TEXT days standards can speculate what provocative idea must have seemed 35 years ago Other CL subjects mentioned F-86 Sabre fitted Dyna Jet fourengined Consolidated B-24 Cal did accom panying cover illustrations both planes originally appeared American Modeler Also shown Blunderbus October 1953 issue Air Trails forerunner American Modeler Blunderbus Free Flight cutie de signed around 1/2A engines just introduced time simple model embellished Cals artwork form isometric drawing wire cabane system parasol Blunderbus spotlighted several years ago yet another magazine resur rected RC sport plane Cal fact himself no stranger RC airplanes Se lected Annual single-channel K&B 13-powered Monocoupe 90 optional trike gear no less Janu ary 1955 issue other examples expertise RC abound Cal designed Wonderwings bipe Aeronca Champ two-foot scale Fokker D-8 Sopwith Bipe latter very earliest Giant Scale models interest RC extended model boats well publishing such di verse things surface submarine bunker boat missile ship collabo ration Frank Lashek some thing pioneer Annual spotlighted Cals Maverick unlimited hydro arti cle included line drawings construc tion well charcoal illustration boat running across pond opera tor thumbing merrily away singlechannel transmitter Other artworks featured An nual Meyers Little Toot pro file Little Toni both like F-86 Sabre Consolidated B-24 paired cover illustrations origi nal issues Cal earned immense distinction illus trator vivid artwork added singular dimension construction articles equaled few others either before since brilliant use subtle color coupled incredible accuracy novel way expressing movement has sel dom duplicated Cals cutaway per spective drawings compare favorably late Hank Clark cover art adorned faces innumerable maga zines notably American Aircraft Modeler 26 Model Aviation alternative power uoc iriu d Davis Dieselised 05 iu model small enough held inverted easily improved starting diesel engine swings large prop its size its torque makes Sportwagon ideal combination Flying Models otten swapped construction articles British modeling publications time cover annual plans books Cal Smith starting ignition engine original Sportwagon FUAoved super running engine tiuu perhaps bit too much such light model Sportwagon ca pable steep climbs half throttle elevators built integraiiy witn rudder pushrod passes through slot stab cut out hinged Mild aerobat fuselage top Small control horns should ics can done clevis connected used give rudder plenty throw bottom elevator horn Lett Uoc relers mo mis memnou urn grabber has used several designsproblems certainly makes clean wing mourn wirnuxtra effort Right Ace Bantam Midget servos 250 mAh batttry md Silver Seven receiver fit nicely fuselage Note wing dowel detail CAL SMITHS SPOR1WAGON DEVELOPED FOR R/C BY DR DBMATHEWS 3/16 PLY GRABBER 1/16 BALSA RIBS 3/16 SQ BALSA FRE 1/i SQ SQ BALSA FPE 1/1 x 3/16 BALSA 5156 STRINGEBS 1/3 x 1/2 BALSA SPAB \\ 8D1A I11A 3/16 x IA 3/32 PLY 3/16 PLY 2 3/16 SQ 1/A x 1/2 IL 3/16 x 3/32 SPABS l/I6SQBALSASPPdI 2 Its beauty like keeps selling translucent coverings such gorgeous ar rangement sticks could bear hide structure typical of Cals de signs provides rugged strength penalty excessive weight Doc decided modify original symmetrical airfoil stab easier-to-build flat-bottom section Among diverse cover subjects B-57s P-47s Fokker D-8 Goodyear rac ers missile cruiser X-15 Unlim fin rudder constructed lami nating strips balsa soaked ammonia water make flexible Spreading phatic resin Elmers glue along seams bonds laminations formed plans around piece foam board ited Hydro Sopwith Pups Stitts Playboy Glenn Curtiss racing Barney Oldfields old Number 99 action flight settings incredible beauty often companion model design article same issue magazine Although Cal Smith gave countless hours pleasurable building reading Im no way authority life character remarkably accomplished man Fellow modeler Bill Winter other hand knew Cal well fact Bill Cals earliest influential mentors Bill Cal Boys Bills eulogy former pupil lifelong friend October 1964 issue Model Airplane News have suffered inestimable loss almost long can remem ber source numberless de nose made %-in balsa sheeting carved sanded aesthetic shape Cals artistic eye originally provided Note bottom support piece windshield S/lB 3/32 BALSA SPARS TOP ORLY 3/lA BALSA SHEET /iII 3/1655 BALSA SPARS TOP 6 BOTTOM I/B I/2 BALSA 3PM BOTTOM ORLY 3116 BALSA SHEET \ S/lA BALSASTAB CENTERSLOT FOR FILLSETIOH RIBPINK va BALSA ~4tzEI~ TYPICAL HINSEfr~I 1/16 BALSA SHEET TOP B BOTTOM WING TILT /IA BAL~L FILL -ELEVAT0R4 3/IA PILL LAM PARS X-SECT STAB TIP THREE 3/IA 3/B BALSA DOWEL I/B 3/IA1 BALSAGRABBER 1/64 PLYWINS FRAMES/IA DO X-SECTINNER FRAME 1/B S/B V1EFILL LOOBINS FORWARD F-3 -SIS 91219 THS BU REAR WING MOUII 3/IA PLY ETAIL I1SO 5 BALSA 1/B SIA MUSIC WIRE LANDING GEAR DETAILBOTi 1/B 3125436 signs articles illustrations cover paint ings box wraps books helped make hobby others enjoyable light us saw re member him Cals versatility however went beyond things always surprised constant excursions other things instant au thentic expert exhibited typical interest thing around himhe expert scuba diving spearfishing ice boating wonderfully self-illustrated books equaled surpassed what gone before fields first recollection Cal goes back 1945 aviation editor met him through MAN cover artist Jo Kotula Smitty just out Air Force during WW H participated prepa ration flying safety manuals could ask man anything tackled it done perfection drew Smog Hog plans wrote getting-started article painted cover did how-to28 Model Aviation Full-Size Plans Available. See Page 172 SO SA IS TSP SflOM 3/INI/2 3/B BALSA SA I/4I/2 BALSA LEADING EDGE 1/4 BALSA BALSA TILT WITH 26WING TILTWING PLAN TOP VIEW 3/IN 55 BALSA TOP ONLY 3/16 BALSA GADGETS - NGTIH 3/16 BALSAGTA RIBSHARSWODD-SHhE 3 EDGEI/IN BALSATO YE STOCKS/IN PLY _________________________MOTOR MOUNT 3LAMSqF V16 3/IN BALSA F-2 liltILFIREWALL E4 3/165/BS/RSO ALSABASSWOODLITE PLYTYPICAL 3/4SERVO RAILSERVO OCKF-SA/7 3/B BALSA SHEET COWL CHEEKSF4 DOWELI/B 3/16 BALSA 015 CLEAR1/64 PLYSIDE STRINGERS WINDSCREENS1/4 1/2 SPRUCE WITh PLASTICFRAMEB 32 NYLON BOLT INTO DIG DH-219 BLOCK-UNDER 3/32 BALSA SHEETSCRAP FILL 3/323/16 S/B/006 CLEAR//B LSA3/16 50 BALSA SCRAP /WINDOWS/PR ME SHEET FILL -I--- TEETFILL--1/ii AL BRAIN PULTjI~/_ IOTOIGP3 NEp4pF-NF F-N 3/IN BALSAI/B 3/16 BALSA FILL / YE PLY SCRAP BALSA/SERVO RAILS COHERING SUPPORTII/B 5116SIDE MUSIC WIREFUSELAGEVIEW THIN PLY OR 2-1/2 5116BALSA PAIRING WHEELSIAPTIONALI -S/32 BALSA SHEET RIB 3/32 BALSA TIP RIBS ARE SET ON TOP OF REAR SPAR-PALL OTHER SPARS DOWN ONTO TIP __- __ II __ 11IIll ItIll1 _____ II r iii ________ ____l'i ir I/I BALSA T E STOCKWING TIP DETAIL I3/16 BALSA SHEETSANS AFTER ASSEMBLY 5/16 50 BALSA F- 7 3/16 BALSA SHEET___________________ 015 CLEAR PLASTIC WINDSCREEN PAT 5/IN BALSA SHEET FILL STABILIZER MOUNT 3/16 SO BALSK S/IN 3/B 3/16 BALSABALSA S AD SET 3/16 50/ BALSA / FIN I/B S/IN~BALSA S/IN BALSA SHY THREE JAMINTONS OF 1/16 3/16 BBLSA FORMED DEFLE CT IONS RUDDER I/2LB B ELEVI/ZUBD RuDRND DIG SHORT PUSHNOD EDIT RIGHT SIDE I/IN DIA MWNO MODEL AVIATION CAL SMIThS SPORT WAGON 3/16 BALSA SHEET FROM FLYING MODELS AUG 1948 DEVELOPED FOR R/C BY DR 0 9 MATHEWS TRACING BY JOE DEMARCO do-it sketch model book fullcolor illustration Colliers hard cover work scholarly book world plastic kit box wrapthe result above criticism' recently letter sent response photos Sportwagon Bill put incisively Cal Smith God de stroyed mold History Sportwagon Bill Winter re calls sitting Cals home evening said Cal ought de sign sexy little Free Flight Cal took bait published result Flying Models magazine during stint technical editor late Forties Certain models linger ones mind seem ingly forever often submerged sub conscious just awaiting chance burst back awareness again Sportwagon case point Although planes 1948 Flying Models debut im pressed enormously its distinctive attractive appearance point career Id lost interest Free Flight transferred enthusiasm Control Line obviously attraction held never got around building Sportwagon original plans still wasnt about let go August 1948 Flying Models featured Cals construc tion article magazine carted over country us 1977 British friend Ray Hull sent magazine collection Included incredibly interesting batch British mags 1949 edition Model Plans An nual serieswith black-and-white photo Cal Smith starting Sportwagon cover Inside reprint Flying Models articles appears British Model Aviation series American magazine Flying Models often crosspublished others designs same Annual fact also contained Walt Schro ders Jersey Javelin 1949 British publication turned out catalyst needed Out subcon scious Sportwagon tumbled right away came inspiration adding RC sist Cal alive today thought might well redesign sexy little Free Flight RC sport didnt self try make everything Cal would have wanted hope Ive achieved objective first impulse enlarge 54-in prototype reconsidered stayed Cals original wingspan dimension Cals classic force-moment arrangement sport Free Flight works wonderfully RC conversion 61 aspect ratio 1 per ft span dihedral 45% tail mo ment arm 33% tail area 7% fin area add up delightful model Other pertinent design factors Underpower model using power loading 150 200 oz per cu engine Build wing loading 7 11 oz per sq ft area Use tough covering undercarriage Somehow parameters seem have etched subcon scious right along Sportwagon else explain appear over April 1988 29 TA CENTER SECT RIB 5/32 PLY JOINER 3/IN PLY GRABBER F-S / TAPER I/B SO BALSA BOTTOM STRINGERS SPECIFICATIONS ENGINEID TO 15 WEIGHT3D OZ WING CHORD9-1/4 WING SPAN 54 WING AREA 330 SOFT WING IAAflIfl /SSFT 30 Model Aviation over again own designs Cal powered prototype Bantam 19 ignition also known use Forster 29 British Model Plans Annual suggested using E D Comp Spe cial Mills 24 Ailbon 28 K Vulture Ive found diesel engine roughly 15 Cu capacity fits Cals inten tions closely Forster 29 can envision RC Sportwagon having appeal several different groups mod elers slowly growing numbers Nos talgia RC enthusiasts would certainly interested Old-timers share rever ence original Sportwagon would want try RC version too Maybe modeler whos just shopping really sexy-looking sport RC would also find filled bill Whoever whatever reason build yourself Sportwagon Construction Cyanoacrylate CyA primary adhesive used throughout Ali phatic resin Sig Bond etc used lam inate various outlines five-minute epoxy adhere plywood parts wood balsa unless otherwise speci fied use medium-weight C grain Strip wood should clear knots also medium weight customary Cals models structure strong side same time well stressed relatively easy fabricate Wing Develop master plywood rib tem plate tracing onto wood placing car bon paper between latter underside plans Use pattern stack cut ribs Alternatively cut out knife using metal template Wing tip segments constructed same way should preassembled before installation Notch trailing edge stock razor saw better yet blade reversed jigsaw Taper rear spar before assembly order have reference point tip Build center section integrally left panel making sure ribs ver tical contrast tilt outboard rib has set jig Place scraps 346-in sheet under leading edge assembly building sur face Lay wings down working spars forward making sure ribs positioned properly tip ribs can trimmed master ribs slic ing bottom center section leading edge filler sheet best left uncontoured until wing panels have joined Obviously out board filler should cut match cline ribs After sanding dihedral bevel block against table face join panels using five-minute epoxy clothespins Custom fit ply dihedral brace wing cutting slot through ribs against spar faces Hacksaw blades taped together work well Slide Continued page 128 PRECISION MODEL PRODUCTS 4ff pM Made USA BARSTOCK Retail Approx Pert No SizePrice Weight TT-1 50-B. 1-1/2$1395. 058 oz TT-1 75-B . 1-3/41495 095 oz TT-200-B .21595. 100 TT-225-B 41895. 155 TT-226-B 4 FAll1895. 145 -2B. 2-1/21895. 188 TT-251-B 2 FAll2095. 166 oz TT-275-B. 2-3/42295 215 TT-276-B. 2-3/4 FAll2495 200 TT-300-B 32695 258 os TT-301-B 3 FAIl2895 247 oz TT-325-B 43695. 340 az 3 Pieces Cone Back Plate Retainer Screw Nate 3 4 Blade Spinners Available Sizes Add $300 Per Spinner Available Sizes Add $300 Per Spinner PROP NuT AflAPTOR Retell Approx Pert No SizePrice Weight TT-140-A. 1/4-28$495 061 TT-147-A 1/4-28/7mm 495 061 oz TT-610-A mm495. 063az TT-710-A mm495. 082os fl-51 6-A 5/16-24495. 076 fl-810-A mm495. 076oz TT-825-A. 8 xl 25mm.. 495. 075 os TT-375-A. 3/8-24595 Os lT-125-A l2Smm. 595. 1lSos 3 Piece Set Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 FOAM WING CORES SEND 150 FOR DESCRIPTIVE PRODUCT CATALOG u.umuummmuinuummuuuuuuuuuua U FU U U PRECISION MADE EXPANDED BEAD POLYSTYRENE REPLACEMENT WING & STAB CORES FOR ALL POPULAR R/C AIRCRAFt OVER 250 DIFFERENT WINGS U IN STOCK FOR IMMEDIATE DELI VERK SO IF FAVORITE BIRD THAT NEEDS WING CALL ORI I IU ___________________________ ii U U U U U IUUEEEEEUUUEEUUUUUUUUUUUEUUUUUUUUEUEEUEUI WYiV MF6 WING MFG PO BOX 33 CRYSTAL LAKE IL 60014 beck suggest two D-cells would give few spurts amperage poop out also phoned explain problemand backed up sending Eveready 15-volt battery couldnt obtain elsewhere battery hard find can bet sent letter Union Carbide Corp ask no #1S6 1-volt batteries hobby shopsand no advertis ing modeling magazines Its item surely need second problem Cox Black Widow 049 Murphy claimed screw just vanished held backplate fuel tank en gine No magnet could find sent Cox Hobbies letter requesting screw Black Widow 049 enclosed $100 cash Several weeks later received current catalog price list packet screws parts 049 overhaul kit retailing $105 No payment due Golly old veterans heart goes out two American manufacturers gratitude help gave freely Lee Hoffman Banning CA two firms representative aeromodeling field really strive high level customer satisfac tion Maybe thats because run modelers modelers us con sumers really quite lucky know have quality things can pur chase make modeling easier and/or enjoyable Sportwagon/Mathews Continued page 30 ply blank slot mark oufline pencil Cut out epoxy place install grabber time Carve sand leading edge tips trailing edge contour Although Cal covered leading edge 2 sheeting obvious reasons doesnt suit present purposes Fuselage Standard box-type construction employed frame built over other using scraps masking tape prevent sticking substituted mod ern radial mount breakaway engine beams prototype Its good idea assemble form ers bulkheads fuselage frames curing Again use carbon paper build jig frames #3 #4 directly over drawings Remove frames pop apart using table knife Sand bevel tail posts place right frame over drawing Trial fit adjust formers necessary fit snugly frame tach CyA making sure right angles planes Install left frame onto formers checking alignment triangle etc prefer leave box building sur face jacking up tail post exactly one-half fuselage width Glue left frame place cut crosspieces pairs using top view guide An alternative method would involve re moving box setting directly over top view constructing either case sure tail post center midline stab seat level Bend landing gear over drawing using large vise-grip pliers bench vise cutoff wheel also useful attempt rebend mistake just toss start over unit held #3 nylon clips Its wise predrill #3 before installing gear Attach bottom formers stringers Moisten top sheeting ammonia water pull down over firewall former side stringers taper rear filler strips around win dows taper up wing seat CyA 1/64 ply window frames stringer filler strips Sheet plastic windows will attached inside frames after fuselage has covered makes very neat easily installed window treatment Attach wing saddle fillers dowel five-minute epoxy Make sure dowel center runs level along both planes Joining wing fuselage Hold 128 Model Aviation WHEN USING THE CK-3 ONLY THE SIZE IS DIFFERENT win Engine Control Normal single throttle stick control over both engines Absolute engine synchronization advanced throttle settings via small adjustments RUDDER trim Realistic outboard engine advancement during turns taxi throttle settings via RUDDER control Completely realistic 1141 scale engine control during taxz synchronization flight finally available Works radio system digital CMOS No tuned circuits Installation instructions included -NOT simple coupling device Advancing engine does NOT retard other engine Order CK-3 just $4995 S&H C & K Ventures / 1807 Park / Laramie WY / 82070 Phone 307-745-7557 Order 24 hours day Please call write complete information add just device dream RC twin quest absolute realism onel 'grabber against ply brace clamps slide wing over front dowel Adjust center section wing parallel fuselage sides Use piece heavy string has pinned tail post check wing exactly right angles fuselage Measure common point both tips tail post adjusting until exactly Mark point grabber epoxy joiner Return wing seat recheck string Using drill size corresponding nylon bolt drill down through hardwood trail ing edge underlying hardwood block Screw bolt pre-tapped Sig block pull up against hardwood wing saddle hit CyA tapped hole bolt could used instead hardwood rear saddle would probably need thicker stock Initially tried Cals rubberband wing hold-on technique unable keep wing sliding rear Perhaps single dowel running forward have grabber dowel would work Empennage original Sportwagon used symmetrical stab section con structing joining fuselage used flat-bottom section sake simplicity also chose flat fin-rudder sembly airfoil Make laminated outlines moisten ing strips balsa ammonia water spreading aliphatic resin along seams laminations formed either over plans using pins along perime ter over foam board patterns horizontal stabilizer ribs con structed much same manner wing ribs Lay sheet center section down add spars ribs leading trailing edges Use straightedge mark cut %-in slots ribs two hinge line spars CyA place trim edges tips install Use sanding block final contouring hinge spars match ribs Add top center section sheeting al lowing fin slot After final sanding sep arate elevator portion cut slots hinges install perma nently Since elevator horn screw plate will under covering CyA Lite Ply base fin construction selfexplanatory Installing hardware decided verted mounting engine can also installed either upright sidewinder position Tank position will vary accordingly used small 2-oz Per fect Brand metal tank replumbed rear pickup top vent small Sullivan RC 130 Model Aviation Ultimate Model 310 courtesy Jim Ifatt/Seneca II courtesy C & K Ventures Last An Automatic Full-Feathering Adjustable Pitch Propeller An exclusive 4patented mechanism lets adjust pitch 8-40 optimum perfor mance blades automa tically feather motor stops reduce drag give much Recommended 72-80 motor gliders similar models wing AZV loads up 14 ozI sq ft 05 direct drive systems e shaft Stock No MAO8XXE $2495 Suggested Retail Available Through Leading Distributors WINDSOR PROPELLER CO 384 Tesconl Ct Santa Rosa CA 95401 tank will also fit throttle system used has throttle cable enclosed nylon rod battery should placed alongside tank far forward possible Du-Bro switch mount positioned scrap filler model used 14 x 14-in balsa pushrods EZ connectors servo arm other threaded wire clevis Nylon rods could also used rudder unit does exit top fuselage Sportwagon must balance shown plans came out needing ballast however other engine-ALSO AERONCA Li6B/CHAI84 IN VULT BT-13 VALIANT 84 IN SPAN and-equipment combinations may require adding ballast nose tail Continued page 132 Safe Flying No Accident 4 Fokker D-VII VK Model Aircraft PO Box 3007 Aurora IL 60505 312-357-1883 F iA SCAlE SPT SCALE AONCA L3/EIThlDEE 105 IN 2 CYClE 90-13 /1 4 CYClE 12-18 ROLIiD PLAN SETS------- $20 EACH FIBERGLASS CCWIS--------- 20 EACH ADD 120SHPDlGNYS ADD 8QTAX AERO PLANS N PARTS PO BOX 939 OIEAN NY 14760 716 372 / April 1988 131 GATOR RIC PRODUCTS An new Tiger Tail 120 four strokes piped 60 two strokes beautiful performer competition just showing offl balsa kit machined wood parts complete hardware package includes plug-in adjustable stab parts new wing mounts Wing Span -72 inWing Area- 860 sq Complete Delux KitSI 5995 TIGER TAIL 4S DELUX ALL BALSA KIT PLUG-IN ADJUSTABLE STAB KIT last can optimize stab incidence best flight charac teristics pair glass filled nylon adjusters Included provide micro screw adjustment smaller front tube Main tube aluminum matching phenolic socket TRANSMITTER CASE An inexpensive rugged molded case protect expensive transmitter both two stick single stick transmitters Brown leather grain aluminum trim locking clasp S 1895 WING TUBE & SOCKETS Aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wing structure Now size models 718 dia 25 895 t/diax25 995 diax3S1495 feather Ilte glass cloth 7 az/sq yd est weave Fastest Filling test Finished Weight Big 3 Sq Yard Pkg Detailed Instructions S895 ENGINE SLEEVE & BEARING PULLER Pull sight sleeves bearings easily out damage new 60s 17MM rear bearings Sleeve Puller5 795 Bearing Puller5 695 Bothpor51395 IVANS MAGIC GADGET protractor device used Ivan Kristensen accurately measure aileron elevator rudder throw Takes guess work out tool complete instrutnons log trimming out airplane quality book carrying caseS 795 NEWI WING MOUMING SET wing mounting system developed Ron Chidgey fast neat accurate stays tight Three nylon brackets screws machined wood wing blocks included S 595 READY TO FLY Call 1-800-45-TO FLY *LOW PRICES *EASY TO ASSEMBLE *NO BUILDING *NO PAINTING Piper Cherokee-40 Piper Gherokee-25 Fokker E111-40 Fancy Stick-25 Cessna 172-20 engine included Zh SUNSHINE HOBBY 17721 South Western Avenue Gardena California 90247 Check free movement controls set up throws Covering Following usual practice used transparent MonoKote Cal sug gested lightweight silk tissue however model certainly would delightful covered silk new iron-on fab rics transparent colors would also viable alternative sprayed Poly U trim over Mono Kote light rubbing 000-grade steel wool aids adhesion preference Sig Stripe Rite masking Brushing coat Sig clear Skybrite great preventing bleeders also used Stripe Rite pin stripes letters vinyl stick-on ones office supply store Banner wheels used prototype certainly add appearance points used samples new hinge material model recommend Klett Sig pinned hinges safeguard drill hole insert small piece toothpick securing CyA covered Sportwagon RC equipment place hadnt done way quite some time really simpler easier effort Cut window holes out shrunken MonoKote Cut window plastic out line over plans using Wilhold RC 56 ad hesive secure windows inside frame windscreen will need trimmed slightly good fit Position inside ply rear onto tiny cut outs MonoKote Stripe Rite tape used joint primed tank engine compart ments Skybrite painted Poly U Flying Remember used fly sport Free Flight dream day wed able make turn back land feet Want bet thought went around Cal Smiths mind 1948 Well golly 37 years later can know some purists detest contra diction term what have RC-assisted Free Flight incarna tion Cals sexy little Free Flight gets fly around merrilyand get watch giving occasional directional changes $12999 $9599 $11999 $6999 $9999 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 POXY PRIMER K&B SUPER POXY PAINT 168 MIXING CUPS ground Point nose wind advance power up away goes radio may needed slight course corrections might change elevator bit adjust rate climb keep soaring too high flies adjust chugging around looking pretty re alistic air isnt what youre after use Sportwagon practice maneuvers like stall turns yes lazy loops model has excellent versatility Cal Smith did homework well Men Cal Smiths extraordinary gifts energy dont come along very often Artist author model designer Cal sort Renaissance man model avia tion closing 1969 tribute Model Airplane News excerpted above Bill Win ter declared Forgotten Cal will never hope updating Sportwagon will help keep memory its designer alive Radio Technique/Myers Continued page 33 Tach 2 still works must good idea Thanks Bob Making use idea presented column back October 79 Accu-Tach 2 handbook suggests used evaluate RC system installation cut battery lead aileron adapter cable con nect cut ends milliamoneter like Accu Tach 2 Put adapter between flight pack switch harness Turn transmitter receiver observe current being drawn try control its extreme position trim available same extreme can stall servo position will see amps jump way up stay up warning reset throttle stop clear epoxy out binges make additional clear ance pushrods etc can put modi fied aileron extender cable between servo receiver evaluate particular servo instal lation problems may work system installation insertion resistance Accu Tach 2 oscillator strobes display may drive system instability happens youll have make measure ment analog VOM kind pointer using 500 mA range 132 Model Aviation unuu ruriurmance System TOP PERFORMANCE K&B ENGINES AkplaneMauine K&B FUELS168 GLOW PLUGS 9 Blends4 Choices See Dealer Order Direct Inciude S2 Per Item UPS GATOR RIC PRODUCTS 3713 Pompano Dr acola FL 32514 l 476-8639
Edition: Model Aviation - 1988/04
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 128, 130, 131, 132
NO OCR TEXT NO OCR TEXT days standards can speculate what provocative idea must have seemed 35 years ago Other CL subjects mentioned F-86 Sabre fitted Dyna Jet fourengined Consolidated B-24 Cal did accom panying cover illustrations both planes originally appeared American Modeler Also shown Blunderbus October 1953 issue Air Trails forerunner American Modeler Blunderbus Free Flight cutie de signed around 1/2A engines just introduced time simple model embellished Cals artwork form isometric drawing wire cabane system parasol Blunderbus spotlighted several years ago yet another magazine resur rected RC sport plane Cal fact himself no stranger RC airplanes Se lected Annual single-channel K&B 13-powered Monocoupe 90 optional trike gear no less Janu ary 1955 issue other examples expertise RC abound Cal designed Wonderwings bipe Aeronca Champ two-foot scale Fokker D-8 Sopwith Bipe latter very earliest Giant Scale models interest RC extended model boats well publishing such di verse things surface submarine bunker boat missile ship collabo ration Frank Lashek some thing pioneer Annual spotlighted Cals Maverick unlimited hydro arti cle included line drawings construc tion well charcoal illustration boat running across pond opera tor thumbing merrily away singlechannel transmitter Other artworks featured An nual Meyers Little Toot pro file Little Toni both like F-86 Sabre Consolidated B-24 paired cover illustrations origi nal issues Cal earned immense distinction illus trator vivid artwork added singular dimension construction articles equaled few others either before since brilliant use subtle color coupled incredible accuracy novel way expressing movement has sel dom duplicated Cals cutaway per spective drawings compare favorably late Hank Clark cover art adorned faces innumerable maga zines notably American Aircraft Modeler 26 Model Aviation alternative power uoc iriu d Davis Dieselised 05 iu model small enough held inverted easily improved starting diesel engine swings large prop its size its torque makes Sportwagon ideal combination Flying Models otten swapped construction articles British modeling publications time cover annual plans books Cal Smith starting ignition engine original Sportwagon FUAoved super running engine tiuu perhaps bit too much such light model Sportwagon ca pable steep climbs half throttle elevators built integraiiy witn rudder pushrod passes through slot stab cut out hinged Mild aerobat fuselage top Small control horns should ics can done clevis connected used give rudder plenty throw bottom elevator horn Lett Uoc relers mo mis memnou urn grabber has used several designsproblems certainly makes clean wing mourn wirnuxtra effort Right Ace Bantam Midget servos 250 mAh batttry md Silver Seven receiver fit nicely fuselage Note wing dowel detail CAL SMITHS SPOR1WAGON DEVELOPED FOR R/C BY DR DBMATHEWS 3/16 PLY GRABBER 1/16 BALSA RIBS 3/16 SQ BALSA FRE 1/i SQ SQ BALSA FPE 1/1 x 3/16 BALSA 5156 STRINGEBS 1/3 x 1/2 BALSA SPAB \\ 8D1A I11A 3/16 x IA 3/32 PLY 3/16 PLY 2 3/16 SQ 1/A x 1/2 IL 3/16 x 3/32 SPABS l/I6SQBALSASPPdI 2 Its beauty like keeps selling translucent coverings such gorgeous ar rangement sticks could bear hide structure typical of Cals de signs provides rugged strength penalty excessive weight Doc decided modify original symmetrical airfoil stab easier-to-build flat-bottom section Among diverse cover subjects B-57s P-47s Fokker D-8 Goodyear rac ers missile cruiser X-15 Unlim fin rudder constructed lami nating strips balsa soaked ammonia water make flexible Spreading phatic resin Elmers glue along seams bonds laminations formed plans around piece foam board ited Hydro Sopwith Pups Stitts Playboy Glenn Curtiss racing Barney Oldfields old Number 99 action flight settings incredible beauty often companion model design article same issue magazine Although Cal Smith gave countless hours pleasurable building reading Im no way authority life character remarkably accomplished man Fellow modeler Bill Winter other hand knew Cal well fact Bill Cals earliest influential mentors Bill Cal Boys Bills eulogy former pupil lifelong friend October 1964 issue Model Airplane News have suffered inestimable loss almost long can remem ber source numberless de nose made %-in balsa sheeting carved sanded aesthetic shape Cals artistic eye originally provided Note bottom support piece windshield S/lB 3/32 BALSA SPARS TOP ORLY 3/lA BALSA SHEET /iII 3/1655 BALSA SPARS TOP 6 BOTTOM I/B I/2 BALSA 3PM BOTTOM ORLY 3116 BALSA SHEET \ S/lA BALSASTAB CENTERSLOT FOR FILLSETIOH RIBPINK va BALSA ~4tzEI~ TYPICAL HINSEfr~I 1/16 BALSA SHEET TOP B BOTTOM WING TILT /IA BAL~L FILL -ELEVAT0R4 3/IA PILL LAM PARS X-SECT STAB TIP THREE 3/IA 3/B BALSA DOWEL I/B 3/IA1 BALSAGRABBER 1/64 PLYWINS FRAMES/IA DO X-SECTINNER FRAME 1/B S/B V1EFILL LOOBINS FORWARD F-3 -SIS 91219 THS BU REAR WING MOUII 3/IA PLY ETAIL I1SO 5 BALSA 1/B SIA MUSIC WIRE LANDING GEAR DETAILBOTi 1/B 3125436 signs articles illustrations cover paint ings box wraps books helped make hobby others enjoyable light us saw re member him Cals versatility however went beyond things always surprised constant excursions other things instant au thentic expert exhibited typical interest thing around himhe expert scuba diving spearfishing ice boating wonderfully self-illustrated books equaled surpassed what gone before fields first recollection Cal goes back 1945 aviation editor met him through MAN cover artist Jo Kotula Smitty just out Air Force during WW H participated prepa ration flying safety manuals could ask man anything tackled it done perfection drew Smog Hog plans wrote getting-started article painted cover did how-to28 Model Aviation Full-Size Plans Available. See Page 172 SO SA IS TSP SflOM 3/INI/2 3/B BALSA SA I/4I/2 BALSA LEADING EDGE 1/4 BALSA BALSA TILT WITH 26WING TILTWING PLAN TOP VIEW 3/IN 55 BALSA TOP ONLY 3/16 BALSA GADGETS - NGTIH 3/16 BALSAGTA RIBSHARSWODD-SHhE 3 EDGEI/IN BALSATO YE STOCKS/IN PLY _________________________MOTOR MOUNT 3LAMSqF V16 3/IN BALSA F-2 liltILFIREWALL E4 3/165/BS/RSO ALSABASSWOODLITE PLYTYPICAL 3/4SERVO RAILSERVO OCKF-SA/7 3/B BALSA SHEET COWL CHEEKSF4 DOWELI/B 3/16 BALSA 015 CLEAR1/64 PLYSIDE STRINGERS WINDSCREENS1/4 1/2 SPRUCE WITh PLASTICFRAMEB 32 NYLON BOLT INTO DIG DH-219 BLOCK-UNDER 3/32 BALSA SHEETSCRAP FILL 3/323/16 S/B/006 CLEAR//B LSA3/16 50 BALSA SCRAP /WINDOWS/PR ME SHEET FILL -I--- TEETFILL--1/ii AL BRAIN PULTjI~/_ IOTOIGP3 NEp4pF-NF F-N 3/IN BALSAI/B 3/16 BALSA FILL / YE PLY SCRAP BALSA/SERVO RAILS COHERING SUPPORTII/B 5116SIDE MUSIC WIREFUSELAGEVIEW THIN PLY OR 2-1/2 5116BALSA PAIRING WHEELSIAPTIONALI -S/32 BALSA SHEET RIB 3/32 BALSA TIP RIBS ARE SET ON TOP OF REAR SPAR-PALL OTHER SPARS DOWN ONTO TIP __- __ II __ 11IIll ItIll1 _____ II r iii ________ ____l'i ir I/I BALSA T E STOCKWING TIP DETAIL I3/16 BALSA SHEETSANS AFTER ASSEMBLY 5/16 50 BALSA F- 7 3/16 BALSA SHEET___________________ 015 CLEAR PLASTIC WINDSCREEN PAT 5/IN BALSA SHEET FILL STABILIZER MOUNT 3/16 SO BALSK S/IN 3/B 3/16 BALSABALSA S AD SET 3/16 50/ BALSA / FIN I/B S/IN~BALSA S/IN BALSA SHY THREE JAMINTONS OF 1/16 3/16 BBLSA FORMED DEFLE CT IONS RUDDER I/2LB B ELEVI/ZUBD RuDRND DIG SHORT PUSHNOD EDIT RIGHT SIDE I/IN DIA MWNO MODEL AVIATION CAL SMIThS SPORT WAGON 3/16 BALSA SHEET FROM FLYING MODELS AUG 1948 DEVELOPED FOR R/C BY DR 0 9 MATHEWS TRACING BY JOE DEMARCO do-it sketch model book fullcolor illustration Colliers hard cover work scholarly book world plastic kit box wrapthe result above criticism' recently letter sent response photos Sportwagon Bill put incisively Cal Smith God de stroyed mold History Sportwagon Bill Winter re calls sitting Cals home evening said Cal ought de sign sexy little Free Flight Cal took bait published result Flying Models magazine during stint technical editor late Forties Certain models linger ones mind seem ingly forever often submerged sub conscious just awaiting chance burst back awareness again Sportwagon case point Although planes 1948 Flying Models debut im pressed enormously its distinctive attractive appearance point career Id lost interest Free Flight transferred enthusiasm Control Line obviously attraction held never got around building Sportwagon original plans still wasnt about let go August 1948 Flying Models featured Cals construc tion article magazine carted over country us 1977 British friend Ray Hull sent magazine collection Included incredibly interesting batch British mags 1949 edition Model Plans An nual serieswith black-and-white photo Cal Smith starting Sportwagon cover Inside reprint Flying Models articles appears British Model Aviation series American magazine Flying Models often crosspublished others designs same Annual fact also contained Walt Schro ders Jersey Javelin 1949 British publication turned out catalyst needed Out subcon scious Sportwagon tumbled right away came inspiration adding RC sist Cal alive today thought might well redesign sexy little Free Flight RC sport didnt self try make everything Cal would have wanted hope Ive achieved objective first impulse enlarge 54-in prototype reconsidered stayed Cals original wingspan dimension Cals classic force-moment arrangement sport Free Flight works wonderfully RC conversion 61 aspect ratio 1 per ft span dihedral 45% tail mo ment arm 33% tail area 7% fin area add up delightful model Other pertinent design factors Underpower model using power loading 150 200 oz per cu engine Build wing loading 7 11 oz per sq ft area Use tough covering undercarriage Somehow parameters seem have etched subcon scious right along Sportwagon else explain appear over April 1988 29 TA CENTER SECT RIB 5/32 PLY JOINER 3/IN PLY GRABBER F-S / TAPER I/B SO BALSA BOTTOM STRINGERS SPECIFICATIONS ENGINEID TO 15 WEIGHT3D OZ WING CHORD9-1/4 WING SPAN 54 WING AREA 330 SOFT WING IAAflIfl /SSFT 30 Model Aviation over again own designs Cal powered prototype Bantam 19 ignition also known use Forster 29 British Model Plans Annual suggested using E D Comp Spe cial Mills 24 Ailbon 28 K Vulture Ive found diesel engine roughly 15 Cu capacity fits Cals inten tions closely Forster 29 can envision RC Sportwagon having appeal several different groups mod elers slowly growing numbers Nos talgia RC enthusiasts would certainly interested Old-timers share rever ence original Sportwagon would want try RC version too Maybe modeler whos just shopping really sexy-looking sport RC would also find filled bill Whoever whatever reason build yourself Sportwagon Construction Cyanoacrylate CyA primary adhesive used throughout Ali phatic resin Sig Bond etc used lam inate various outlines five-minute epoxy adhere plywood parts wood balsa unless otherwise speci fied use medium-weight C grain Strip wood should clear knots also medium weight customary Cals models structure strong side same time well stressed relatively easy fabricate Wing Develop master plywood rib tem plate tracing onto wood placing car bon paper between latter underside plans Use pattern stack cut ribs Alternatively cut out knife using metal template Wing tip segments constructed same way should preassembled before installation Notch trailing edge stock razor saw better yet blade reversed jigsaw Taper rear spar before assembly order have reference point tip Build center section integrally left panel making sure ribs ver tical contrast tilt outboard rib has set jig Place scraps 346-in sheet under leading edge assembly building sur face Lay wings down working spars forward making sure ribs positioned properly tip ribs can trimmed master ribs slic ing bottom center section leading edge filler sheet best left uncontoured until wing panels have joined Obviously out board filler should cut match cline ribs After sanding dihedral bevel block against table face join panels using five-minute epoxy clothespins Custom fit ply dihedral brace wing cutting slot through ribs against spar faces Hacksaw blades taped together work well Slide Continued page 128 PRECISION MODEL PRODUCTS 4ff pM Made USA BARSTOCK Retail Approx Pert No SizePrice Weight TT-1 50-B. 1-1/2$1395. 058 oz TT-1 75-B . 1-3/41495 095 oz TT-200-B .21595. 100 TT-225-B 41895. 155 TT-226-B 4 FAll1895. 145 -2B. 2-1/21895. 188 TT-251-B 2 FAll2095. 166 oz TT-275-B. 2-3/42295 215 TT-276-B. 2-3/4 FAll2495 200 TT-300-B 32695 258 os TT-301-B 3 FAIl2895 247 oz TT-325-B 43695. 340 az 3 Pieces Cone Back Plate Retainer Screw Nate 3 4 Blade Spinners Available Sizes Add $300 Per Spinner Available Sizes Add $300 Per Spinner PROP NuT AflAPTOR Retell Approx Pert No SizePrice Weight TT-140-A. 1/4-28$495 061 TT-147-A 1/4-28/7mm 495 061 oz TT-610-A mm495. 063az TT-710-A mm495. 082os fl-51 6-A 5/16-24495. 076 fl-810-A mm495. 076oz TT-825-A. 8 xl 25mm.. 495. 075 os TT-375-A. 3/8-24595 Os lT-125-A l2Smm. 595. 1lSos 3 Piece Set Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 FOAM WING CORES SEND 150 FOR DESCRIPTIVE PRODUCT CATALOG u.umuummmuinuummuuuuuuuuuua U FU U U PRECISION MADE EXPANDED BEAD POLYSTYRENE REPLACEMENT WING & STAB CORES FOR ALL POPULAR R/C AIRCRAFt OVER 250 DIFFERENT WINGS U IN STOCK FOR IMMEDIATE DELI VERK SO IF FAVORITE BIRD THAT NEEDS WING CALL ORI I IU ___________________________ ii U U U U U IUUEEEEEUUUEEUUUUUUUUUUUEUUUUUUUUEUEEUEUI WYiV MF6 WING MFG PO BOX 33 CRYSTAL LAKE IL 60014 beck suggest two D-cells would give few spurts amperage poop out also phoned explain problemand backed up sending Eveready 15-volt battery couldnt obtain elsewhere battery hard find can bet sent letter Union Carbide Corp ask no #1S6 1-volt batteries hobby shopsand no advertis ing modeling magazines Its item surely need second problem Cox Black Widow 049 Murphy claimed screw just vanished held backplate fuel tank en gine No magnet could find sent Cox Hobbies letter requesting screw Black Widow 049 enclosed $100 cash Several weeks later received current catalog price list packet screws parts 049 overhaul kit retailing $105 No payment due Golly old veterans heart goes out two American manufacturers gratitude help gave freely Lee Hoffman Banning CA two firms representative aeromodeling field really strive high level customer satisfac tion Maybe thats because run modelers modelers us con sumers really quite lucky know have quality things can pur chase make modeling easier and/or enjoyable Sportwagon/Mathews Continued page 30 ply blank slot mark oufline pencil Cut out epoxy place install grabber time Carve sand leading edge tips trailing edge contour Although Cal covered leading edge 2 sheeting obvious reasons doesnt suit present purposes Fuselage Standard box-type construction employed frame built over other using scraps masking tape prevent sticking substituted mod ern radial mount breakaway engine beams prototype Its good idea assemble form ers bulkheads fuselage frames curing Again use carbon paper build jig frames #3 #4 directly over drawings Remove frames pop apart using table knife Sand bevel tail posts place right frame over drawing Trial fit adjust formers necessary fit snugly frame tach CyA making sure right angles planes Install left frame onto formers checking alignment triangle etc prefer leave box building sur face jacking up tail post exactly one-half fuselage width Glue left frame place cut crosspieces pairs using top view guide An alternative method would involve re moving box setting directly over top view constructing either case sure tail post center midline stab seat level Bend landing gear over drawing using large vise-grip pliers bench vise cutoff wheel also useful attempt rebend mistake just toss start over unit held #3 nylon clips Its wise predrill #3 before installing gear Attach bottom formers stringers Moisten top sheeting ammonia water pull down over firewall former side stringers taper rear filler strips around win dows taper up wing seat CyA 1/64 ply window frames stringer filler strips Sheet plastic windows will attached inside frames after fuselage has covered makes very neat easily installed window treatment Attach wing saddle fillers dowel five-minute epoxy Make sure dowel center runs level along both planes Joining wing fuselage Hold 128 Model Aviation WHEN USING THE CK-3 ONLY THE SIZE IS DIFFERENT win Engine Control Normal single throttle stick control over both engines Absolute engine synchronization advanced throttle settings via small adjustments RUDDER trim Realistic outboard engine advancement during turns taxi throttle settings via RUDDER control Completely realistic 1141 scale engine control during taxz synchronization flight finally available Works radio system digital CMOS No tuned circuits Installation instructions included -NOT simple coupling device Advancing engine does NOT retard other engine Order CK-3 just $4995 S&H C & K Ventures / 1807 Park / Laramie WY / 82070 Phone 307-745-7557 Order 24 hours day Please call write complete information add just device dream RC twin quest absolute realism onel 'grabber against ply brace clamps slide wing over front dowel Adjust center section wing parallel fuselage sides Use piece heavy string has pinned tail post check wing exactly right angles fuselage Measure common point both tips tail post adjusting until exactly Mark point grabber epoxy joiner Return wing seat recheck string Using drill size corresponding nylon bolt drill down through hardwood trail ing edge underlying hardwood block Screw bolt pre-tapped Sig block pull up against hardwood wing saddle hit CyA tapped hole bolt could used instead hardwood rear saddle would probably need thicker stock Initially tried Cals rubberband wing hold-on technique unable keep wing sliding rear Perhaps single dowel running forward have grabber dowel would work Empennage original Sportwagon used symmetrical stab section con structing joining fuselage used flat-bottom section sake simplicity also chose flat fin-rudder sembly airfoil Make laminated outlines moisten ing strips balsa ammonia water spreading aliphatic resin along seams laminations formed either over plans using pins along perime ter over foam board patterns horizontal stabilizer ribs con structed much same manner wing ribs Lay sheet center section down add spars ribs leading trailing edges Use straightedge mark cut %-in slots ribs two hinge line spars CyA place trim edges tips install Use sanding block final contouring hinge spars match ribs Add top center section sheeting al lowing fin slot After final sanding sep arate elevator portion cut slots hinges install perma nently Since elevator horn screw plate will under covering CyA Lite Ply base fin construction selfexplanatory Installing hardware decided verted mounting engine can also installed either upright sidewinder position Tank position will vary accordingly used small 2-oz Per fect Brand metal tank replumbed rear pickup top vent small Sullivan RC 130 Model Aviation Ultimate Model 310 courtesy Jim Ifatt/Seneca II courtesy C & K Ventures Last An Automatic Full-Feathering Adjustable Pitch Propeller An exclusive 4patented mechanism lets adjust pitch 8-40 optimum perfor mance blades automa tically feather motor stops reduce drag give much Recommended 72-80 motor gliders similar models wing AZV loads up 14 ozI sq ft 05 direct drive systems e shaft Stock No MAO8XXE $2495 Suggested Retail Available Through Leading Distributors WINDSOR PROPELLER CO 384 Tesconl Ct Santa Rosa CA 95401 tank will also fit throttle system used has throttle cable enclosed nylon rod battery should placed alongside tank far forward possible Du-Bro switch mount positioned scrap filler model used 14 x 14-in balsa pushrods EZ connectors servo arm other threaded wire clevis Nylon rods could also used rudder unit does exit top fuselage Sportwagon must balance shown plans came out needing ballast however other engine-ALSO AERONCA Li6B/CHAI84 IN VULT BT-13 VALIANT 84 IN SPAN and-equipment combinations may require adding ballast nose tail Continued page 132 Safe Flying No Accident 4 Fokker D-VII VK Model Aircraft PO Box 3007 Aurora IL 60505 312-357-1883 F iA SCAlE SPT SCALE AONCA L3/EIThlDEE 105 IN 2 CYClE 90-13 /1 4 CYClE 12-18 ROLIiD PLAN SETS------- $20 EACH FIBERGLASS CCWIS--------- 20 EACH ADD 120SHPDlGNYS ADD 8QTAX AERO PLANS N PARTS PO BOX 939 OIEAN NY 14760 716 372 / April 1988 131 GATOR RIC PRODUCTS An new Tiger Tail 120 four strokes piped 60 two strokes beautiful performer competition just showing offl balsa kit machined wood parts complete hardware package includes plug-in adjustable stab parts new wing mounts Wing Span -72 inWing Area- 860 sq Complete Delux KitSI 5995 TIGER TAIL 4S DELUX ALL BALSA KIT PLUG-IN ADJUSTABLE STAB KIT last can optimize stab incidence best flight charac teristics pair glass filled nylon adjusters Included provide micro screw adjustment smaller front tube Main tube aluminum matching phenolic socket TRANSMITTER CASE An inexpensive rugged molded case protect expensive transmitter both two stick single stick transmitters Brown leather grain aluminum trim locking clasp S 1895 WING TUBE & SOCKETS Aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wing structure Now size models 718 dia 25 895 t/diax25 995 diax3S1495 feather Ilte glass cloth 7 az/sq yd est weave Fastest Filling test Finished Weight Big 3 Sq Yard Pkg Detailed Instructions S895 ENGINE SLEEVE & BEARING PULLER Pull sight sleeves bearings easily out damage new 60s 17MM rear bearings Sleeve Puller5 795 Bearing Puller5 695 Bothpor51395 IVANS MAGIC GADGET protractor device used Ivan Kristensen accurately measure aileron elevator rudder throw Takes guess work out tool complete instrutnons log trimming out airplane quality book carrying caseS 795 NEWI WING MOUMING SET wing mounting system developed Ron Chidgey fast neat accurate stays tight Three nylon brackets screws machined wood wing blocks included S 595 READY TO FLY Call 1-800-45-TO FLY *LOW PRICES *EASY TO ASSEMBLE *NO BUILDING *NO PAINTING Piper Cherokee-40 Piper Gherokee-25 Fokker E111-40 Fancy Stick-25 Cessna 172-20 engine included Zh SUNSHINE HOBBY 17721 South Western Avenue Gardena California 90247 Check free movement controls set up throws Covering Following usual practice used transparent MonoKote Cal sug gested lightweight silk tissue however model certainly would delightful covered silk new iron-on fab rics transparent colors would also viable alternative sprayed Poly U trim over Mono Kote light rubbing 000-grade steel wool aids adhesion preference Sig Stripe Rite masking Brushing coat Sig clear Skybrite great preventing bleeders also used Stripe Rite pin stripes letters vinyl stick-on ones office supply store Banner wheels used prototype certainly add appearance points used samples new hinge material model recommend Klett Sig pinned hinges safeguard drill hole insert small piece toothpick securing CyA covered Sportwagon RC equipment place hadnt done way quite some time really simpler easier effort Cut window holes out shrunken MonoKote Cut window plastic out line over plans using Wilhold RC 56 ad hesive secure windows inside frame windscreen will need trimmed slightly good fit Position inside ply rear onto tiny cut outs MonoKote Stripe Rite tape used joint primed tank engine compart ments Skybrite painted Poly U Flying Remember used fly sport Free Flight dream day wed able make turn back land feet Want bet thought went around Cal Smiths mind 1948 Well golly 37 years later can know some purists detest contra diction term what have RC-assisted Free Flight incarna tion Cals sexy little Free Flight gets fly around merrilyand get watch giving occasional directional changes $12999 $9599 $11999 $6999 $9999 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 POXY PRIMER K&B SUPER POXY PAINT 168 MIXING CUPS ground Point nose wind advance power up away goes radio may needed slight course corrections might change elevator bit adjust rate climb keep soaring too high flies adjust chugging around looking pretty re alistic air isnt what youre after use Sportwagon practice maneuvers like stall turns yes lazy loops model has excellent versatility Cal Smith did homework well Men Cal Smiths extraordinary gifts energy dont come along very often Artist author model designer Cal sort Renaissance man model avia tion closing 1969 tribute Model Airplane News excerpted above Bill Win ter declared Forgotten Cal will never hope updating Sportwagon will help keep memory its designer alive Radio Technique/Myers Continued page 33 Tach 2 still works must good idea Thanks Bob Making use idea presented column back October 79 Accu-Tach 2 handbook suggests used evaluate RC system installation cut battery lead aileron adapter cable con nect cut ends milliamoneter like Accu Tach 2 Put adapter between flight pack switch harness Turn transmitter receiver observe current being drawn try control its extreme position trim available same extreme can stall servo position will see amps jump way up stay up warning reset throttle stop clear epoxy out binges make additional clear ance pushrods etc can put modi fied aileron extender cable between servo receiver evaluate particular servo instal lation problems may work system installation insertion resistance Accu Tach 2 oscillator strobes display may drive system instability happens youll have make measure ment analog VOM kind pointer using 500 mA range 132 Model Aviation unuu ruriurmance System TOP PERFORMANCE K&B ENGINES AkplaneMauine K&B FUELS168 GLOW PLUGS 9 Blends4 Choices See Dealer Order Direct Inciude S2 Per Item UPS GATOR RIC PRODUCTS 3713 Pompano Dr acola FL 32514 l 476-8639
Edition: Model Aviation - 1988/04
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 128, 130, 131, 132
NO OCR TEXT NO OCR TEXT days standards can speculate what provocative idea must have seemed 35 years ago Other CL subjects mentioned F-86 Sabre fitted Dyna Jet fourengined Consolidated B-24 Cal did accom panying cover illustrations both planes originally appeared American Modeler Also shown Blunderbus October 1953 issue Air Trails forerunner American Modeler Blunderbus Free Flight cutie de signed around 1/2A engines just introduced time simple model embellished Cals artwork form isometric drawing wire cabane system parasol Blunderbus spotlighted several years ago yet another magazine resur rected RC sport plane Cal fact himself no stranger RC airplanes Se lected Annual single-channel K&B 13-powered Monocoupe 90 optional trike gear no less Janu ary 1955 issue other examples expertise RC abound Cal designed Wonderwings bipe Aeronca Champ two-foot scale Fokker D-8 Sopwith Bipe latter very earliest Giant Scale models interest RC extended model boats well publishing such di verse things surface submarine bunker boat missile ship collabo ration Frank Lashek some thing pioneer Annual spotlighted Cals Maverick unlimited hydro arti cle included line drawings construc tion well charcoal illustration boat running across pond opera tor thumbing merrily away singlechannel transmitter Other artworks featured An nual Meyers Little Toot pro file Little Toni both like F-86 Sabre Consolidated B-24 paired cover illustrations origi nal issues Cal earned immense distinction illus trator vivid artwork added singular dimension construction articles equaled few others either before since brilliant use subtle color coupled incredible accuracy novel way expressing movement has sel dom duplicated Cals cutaway per spective drawings compare favorably late Hank Clark cover art adorned faces innumerable maga zines notably American Aircraft Modeler 26 Model Aviation alternative power uoc iriu d Davis Dieselised 05 iu model small enough held inverted easily improved starting diesel engine swings large prop its size its torque makes Sportwagon ideal combination Flying Models otten swapped construction articles British modeling publications time cover annual plans books Cal Smith starting ignition engine original Sportwagon FUAoved super running engine tiuu perhaps bit too much such light model Sportwagon ca pable steep climbs half throttle elevators built integraiiy witn rudder pushrod passes through slot stab cut out hinged Mild aerobat fuselage top Small control horns should ics can done clevis connected used give rudder plenty throw bottom elevator horn Lett Uoc relers mo mis memnou urn grabber has used several designsproblems certainly makes clean wing mourn wirnuxtra effort Right Ace Bantam Midget servos 250 mAh batttry md Silver Seven receiver fit nicely fuselage Note wing dowel detail CAL SMITHS SPOR1WAGON DEVELOPED FOR R/C BY DR DBMATHEWS 3/16 PLY GRABBER 1/16 BALSA RIBS 3/16 SQ BALSA FRE 1/i SQ SQ BALSA FPE 1/1 x 3/16 BALSA 5156 STRINGEBS 1/3 x 1/2 BALSA SPAB \\ 8D1A I11A 3/16 x IA 3/32 PLY 3/16 PLY 2 3/16 SQ 1/A x 1/2 IL 3/16 x 3/32 SPABS l/I6SQBALSASPPdI 2 Its beauty like keeps selling translucent coverings such gorgeous ar rangement sticks could bear hide structure typical of Cals de signs provides rugged strength penalty excessive weight Doc decided modify original symmetrical airfoil stab easier-to-build flat-bottom section Among diverse cover subjects B-57s P-47s Fokker D-8 Goodyear rac ers missile cruiser X-15 Unlim fin rudder constructed lami nating strips balsa soaked ammonia water make flexible Spreading phatic resin Elmers glue along seams bonds laminations formed plans around piece foam board ited Hydro Sopwith Pups Stitts Playboy Glenn Curtiss racing Barney Oldfields old Number 99 action flight settings incredible beauty often companion model design article same issue magazine Although Cal Smith gave countless hours pleasurable building reading Im no way authority life character remarkably accomplished man Fellow modeler Bill Winter other hand knew Cal well fact Bill Cals earliest influential mentors Bill Cal Boys Bills eulogy former pupil lifelong friend October 1964 issue Model Airplane News have suffered inestimable loss almost long can remem ber source numberless de nose made %-in balsa sheeting carved sanded aesthetic shape Cals artistic eye originally provided Note bottom support piece windshield S/lB 3/32 BALSA SPARS TOP ORLY 3/lA BALSA SHEET /iII 3/1655 BALSA SPARS TOP 6 BOTTOM I/B I/2 BALSA 3PM BOTTOM ORLY 3116 BALSA SHEET \ S/lA BALSASTAB CENTERSLOT FOR FILLSETIOH RIBPINK va BALSA ~4tzEI~ TYPICAL HINSEfr~I 1/16 BALSA SHEET TOP B BOTTOM WING TILT /IA BAL~L FILL -ELEVAT0R4 3/IA PILL LAM PARS X-SECT STAB TIP THREE 3/IA 3/B BALSA DOWEL I/B 3/IA1 BALSAGRABBER 1/64 PLYWINS FRAMES/IA DO X-SECTINNER FRAME 1/B S/B V1EFILL LOOBINS FORWARD F-3 -SIS 91219 THS BU REAR WING MOUII 3/IA PLY ETAIL I1SO 5 BALSA 1/B SIA MUSIC WIRE LANDING GEAR DETAILBOTi 1/B 3125436 signs articles illustrations cover paint ings box wraps books helped make hobby others enjoyable light us saw re member him Cals versatility however went beyond things always surprised constant excursions other things instant au thentic expert exhibited typical interest thing around himhe expert scuba diving spearfishing ice boating wonderfully self-illustrated books equaled surpassed what gone before fields first recollection Cal goes back 1945 aviation editor met him through MAN cover artist Jo Kotula Smitty just out Air Force during WW H participated prepa ration flying safety manuals could ask man anything tackled it done perfection drew Smog Hog plans wrote getting-started article painted cover did how-to28 Model Aviation Full-Size Plans Available. See Page 172 SO SA IS TSP SflOM 3/INI/2 3/B BALSA SA I/4I/2 BALSA LEADING EDGE 1/4 BALSA BALSA TILT WITH 26WING TILTWING PLAN TOP VIEW 3/IN 55 BALSA TOP ONLY 3/16 BALSA GADGETS - NGTIH 3/16 BALSAGTA RIBSHARSWODD-SHhE 3 EDGEI/IN BALSATO YE STOCKS/IN PLY _________________________MOTOR MOUNT 3LAMSqF V16 3/IN BALSA F-2 liltILFIREWALL E4 3/165/BS/RSO ALSABASSWOODLITE PLYTYPICAL 3/4SERVO RAILSERVO OCKF-SA/7 3/B BALSA SHEET COWL CHEEKSF4 DOWELI/B 3/16 BALSA 015 CLEAR1/64 PLYSIDE STRINGERS WINDSCREENS1/4 1/2 SPRUCE WITh PLASTICFRAMEB 32 NYLON BOLT INTO DIG DH-219 BLOCK-UNDER 3/32 BALSA SHEETSCRAP FILL 3/323/16 S/B/006 CLEAR//B LSA3/16 50 BALSA SCRAP /WINDOWS/PR ME SHEET FILL -I--- TEETFILL--1/ii AL BRAIN PULTjI~/_ IOTOIGP3 NEp4pF-NF F-N 3/IN BALSAI/B 3/16 BALSA FILL / YE PLY SCRAP BALSA/SERVO RAILS COHERING SUPPORTII/B 5116SIDE MUSIC WIREFUSELAGEVIEW THIN PLY OR 2-1/2 5116BALSA PAIRING WHEELSIAPTIONALI -S/32 BALSA SHEET RIB 3/32 BALSA TIP RIBS ARE SET ON TOP OF REAR SPAR-PALL OTHER SPARS DOWN ONTO TIP __- __ II __ 11IIll ItIll1 _____ II r iii ________ ____l'i ir I/I BALSA T E STOCKWING TIP DETAIL I3/16 BALSA SHEETSANS AFTER ASSEMBLY 5/16 50 BALSA F- 7 3/16 BALSA SHEET___________________ 015 CLEAR PLASTIC WINDSCREEN PAT 5/IN BALSA SHEET FILL STABILIZER MOUNT 3/16 SO BALSK S/IN 3/B 3/16 BALSABALSA S AD SET 3/16 50/ BALSA / FIN I/B S/IN~BALSA S/IN BALSA SHY THREE JAMINTONS OF 1/16 3/16 BBLSA FORMED DEFLE CT IONS RUDDER I/2LB B ELEVI/ZUBD RuDRND DIG SHORT PUSHNOD EDIT RIGHT SIDE I/IN DIA MWNO MODEL AVIATION CAL SMIThS SPORT WAGON 3/16 BALSA SHEET FROM FLYING MODELS AUG 1948 DEVELOPED FOR R/C BY DR 0 9 MATHEWS TRACING BY JOE DEMARCO do-it sketch model book fullcolor illustration Colliers hard cover work scholarly book world plastic kit box wrapthe result above criticism' recently letter sent response photos Sportwagon Bill put incisively Cal Smith God de stroyed mold History Sportwagon Bill Winter re calls sitting Cals home evening said Cal ought de sign sexy little Free Flight Cal took bait published result Flying Models magazine during stint technical editor late Forties Certain models linger ones mind seem ingly forever often submerged sub conscious just awaiting chance burst back awareness again Sportwagon case point Although planes 1948 Flying Models debut im pressed enormously its distinctive attractive appearance point career Id lost interest Free Flight transferred enthusiasm Control Line obviously attraction held never got around building Sportwagon original plans still wasnt about let go August 1948 Flying Models featured Cals construc tion article magazine carted over country us 1977 British friend Ray Hull sent magazine collection Included incredibly interesting batch British mags 1949 edition Model Plans An nual serieswith black-and-white photo Cal Smith starting Sportwagon cover Inside reprint Flying Models articles appears British Model Aviation series American magazine Flying Models often crosspublished others designs same Annual fact also contained Walt Schro ders Jersey Javelin 1949 British publication turned out catalyst needed Out subcon scious Sportwagon tumbled right away came inspiration adding RC sist Cal alive today thought might well redesign sexy little Free Flight RC sport didnt self try make everything Cal would have wanted hope Ive achieved objective first impulse enlarge 54-in prototype reconsidered stayed Cals original wingspan dimension Cals classic force-moment arrangement sport Free Flight works wonderfully RC conversion 61 aspect ratio 1 per ft span dihedral 45% tail mo ment arm 33% tail area 7% fin area add up delightful model Other pertinent design factors Underpower model using power loading 150 200 oz per cu engine Build wing loading 7 11 oz per sq ft area Use tough covering undercarriage Somehow parameters seem have etched subcon scious right along Sportwagon else explain appear over April 1988 29 TA CENTER SECT RIB 5/32 PLY JOINER 3/IN PLY GRABBER F-S / TAPER I/B SO BALSA BOTTOM STRINGERS SPECIFICATIONS ENGINEID TO 15 WEIGHT3D OZ WING CHORD9-1/4 WING SPAN 54 WING AREA 330 SOFT WING IAAflIfl /SSFT 30 Model Aviation over again own designs Cal powered prototype Bantam 19 ignition also known use Forster 29 British Model Plans Annual suggested using E D Comp Spe cial Mills 24 Ailbon 28 K Vulture Ive found diesel engine roughly 15 Cu capacity fits Cals inten tions closely Forster 29 can envision RC Sportwagon having appeal several different groups mod elers slowly growing numbers Nos talgia RC enthusiasts would certainly interested Old-timers share rever ence original Sportwagon would want try RC version too Maybe modeler whos just shopping really sexy-looking sport RC would also find filled bill Whoever whatever reason build yourself Sportwagon Construction Cyanoacrylate CyA primary adhesive used throughout Ali phatic resin Sig Bond etc used lam inate various outlines five-minute epoxy adhere plywood parts wood balsa unless otherwise speci fied use medium-weight C grain Strip wood should clear knots also medium weight customary Cals models structure strong side same time well stressed relatively easy fabricate Wing Develop master plywood rib tem plate tracing onto wood placing car bon paper between latter underside plans Use pattern stack cut ribs Alternatively cut out knife using metal template Wing tip segments constructed same way should preassembled before installation Notch trailing edge stock razor saw better yet blade reversed jigsaw Taper rear spar before assembly order have reference point tip Build center section integrally left panel making sure ribs ver tical contrast tilt outboard rib has set jig Place scraps 346-in sheet under leading edge assembly building sur face Lay wings down working spars forward making sure ribs positioned properly tip ribs can trimmed master ribs slic ing bottom center section leading edge filler sheet best left uncontoured until wing panels have joined Obviously out board filler should cut match cline ribs After sanding dihedral bevel block against table face join panels using five-minute epoxy clothespins Custom fit ply dihedral brace wing cutting slot through ribs against spar faces Hacksaw blades taped together work well Slide Continued page 128 PRECISION MODEL PRODUCTS 4ff pM Made USA BARSTOCK Retail Approx Pert No SizePrice Weight TT-1 50-B. 1-1/2$1395. 058 oz TT-1 75-B . 1-3/41495 095 oz TT-200-B .21595. 100 TT-225-B 41895. 155 TT-226-B 4 FAll1895. 145 -2B. 2-1/21895. 188 TT-251-B 2 FAll2095. 166 oz TT-275-B. 2-3/42295 215 TT-276-B. 2-3/4 FAll2495 200 TT-300-B 32695 258 os TT-301-B 3 FAIl2895 247 oz TT-325-B 43695. 340 az 3 Pieces Cone Back Plate Retainer Screw Nate 3 4 Blade Spinners Available Sizes Add $300 Per Spinner Available Sizes Add $300 Per Spinner PROP NuT AflAPTOR Retell Approx Pert No SizePrice Weight TT-140-A. 1/4-28$495 061 TT-147-A 1/4-28/7mm 495 061 oz TT-610-A mm495. 063az TT-710-A mm495. 082os fl-51 6-A 5/16-24495. 076 fl-810-A mm495. 076oz TT-825-A. 8 xl 25mm.. 495. 075 os TT-375-A. 3/8-24595 Os lT-125-A l2Smm. 595. 1lSos 3 Piece Set Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 FOAM WING CORES SEND 150 FOR DESCRIPTIVE PRODUCT CATALOG u.umuummmuinuummuuuuuuuuuua U FU U U PRECISION MADE EXPANDED BEAD POLYSTYRENE REPLACEMENT WING & STAB CORES FOR ALL POPULAR R/C AIRCRAFt OVER 250 DIFFERENT WINGS U IN STOCK FOR IMMEDIATE DELI VERK SO IF FAVORITE BIRD THAT NEEDS WING CALL ORI I IU ___________________________ ii U U U U U IUUEEEEEUUUEEUUUUUUUUUUUEUUUUUUUUEUEEUEUI WYiV MF6 WING MFG PO BOX 33 CRYSTAL LAKE IL 60014 beck suggest two D-cells would give few spurts amperage poop out also phoned explain problemand backed up sending Eveready 15-volt battery couldnt obtain elsewhere battery hard find can bet sent letter Union Carbide Corp ask no #1S6 1-volt batteries hobby shopsand no advertis ing modeling magazines Its item surely need second problem Cox Black Widow 049 Murphy claimed screw just vanished held backplate fuel tank en gine No magnet could find sent Cox Hobbies letter requesting screw Black Widow 049 enclosed $100 cash Several weeks later received current catalog price list packet screws parts 049 overhaul kit retailing $105 No payment due Golly old veterans heart goes out two American manufacturers gratitude help gave freely Lee Hoffman Banning CA two firms representative aeromodeling field really strive high level customer satisfac tion Maybe thats because run modelers modelers us con sumers really quite lucky know have quality things can pur chase make modeling easier and/or enjoyable Sportwagon/Mathews Continued page 30 ply blank slot mark oufline pencil Cut out epoxy place install grabber time Carve sand leading edge tips trailing edge contour Although Cal covered leading edge 2 sheeting obvious reasons doesnt suit present purposes Fuselage Standard box-type construction employed frame built over other using scraps masking tape prevent sticking substituted mod ern radial mount breakaway engine beams prototype Its good idea assemble form ers bulkheads fuselage frames curing Again use carbon paper build jig frames #3 #4 directly over drawings Remove frames pop apart using table knife Sand bevel tail posts place right frame over drawing Trial fit adjust formers necessary fit snugly frame tach CyA making sure right angles planes Install left frame onto formers checking alignment triangle etc prefer leave box building sur face jacking up tail post exactly one-half fuselage width Glue left frame place cut crosspieces pairs using top view guide An alternative method would involve re moving box setting directly over top view constructing either case sure tail post center midline stab seat level Bend landing gear over drawing using large vise-grip pliers bench vise cutoff wheel also useful attempt rebend mistake just toss start over unit held #3 nylon clips Its wise predrill #3 before installing gear Attach bottom formers stringers Moisten top sheeting ammonia water pull down over firewall former side stringers taper rear filler strips around win dows taper up wing seat CyA 1/64 ply window frames stringer filler strips Sheet plastic windows will attached inside frames after fuselage has covered makes very neat easily installed window treatment Attach wing saddle fillers dowel five-minute epoxy Make sure dowel center runs level along both planes Joining wing fuselage Hold 128 Model Aviation WHEN USING THE CK-3 ONLY THE SIZE IS DIFFERENT win Engine Control Normal single throttle stick control over both engines Absolute engine synchronization advanced throttle settings via small adjustments RUDDER trim Realistic outboard engine advancement during turns taxi throttle settings via RUDDER control Completely realistic 1141 scale engine control during taxz synchronization flight finally available Works radio system digital CMOS No tuned circuits Installation instructions included -NOT simple coupling device Advancing engine does NOT retard other engine Order CK-3 just $4995 S&H C & K Ventures / 1807 Park / Laramie WY / 82070 Phone 307-745-7557 Order 24 hours day Please call write complete information add just device dream RC twin quest absolute realism onel 'grabber against ply brace clamps slide wing over front dowel Adjust center section wing parallel fuselage sides Use piece heavy string has pinned tail post check wing exactly right angles fuselage Measure common point both tips tail post adjusting until exactly Mark point grabber epoxy joiner Return wing seat recheck string Using drill size corresponding nylon bolt drill down through hardwood trail ing edge underlying hardwood block Screw bolt pre-tapped Sig block pull up against hardwood wing saddle hit CyA tapped hole bolt could used instead hardwood rear saddle would probably need thicker stock Initially tried Cals rubberband wing hold-on technique unable keep wing sliding rear Perhaps single dowel running forward have grabber dowel would work Empennage original Sportwagon used symmetrical stab section con structing joining fuselage used flat-bottom section sake simplicity also chose flat fin-rudder sembly airfoil Make laminated outlines moisten ing strips balsa ammonia water spreading aliphatic resin along seams laminations formed either over plans using pins along perime ter over foam board patterns horizontal stabilizer ribs con structed much same manner wing ribs Lay sheet center section down add spars ribs leading trailing edges Use straightedge mark cut %-in slots ribs two hinge line spars CyA place trim edges tips install Use sanding block final contouring hinge spars match ribs Add top center section sheeting al lowing fin slot After final sanding sep arate elevator portion cut slots hinges install perma nently Since elevator horn screw plate will under covering CyA Lite Ply base fin construction selfexplanatory Installing hardware decided verted mounting engine can also installed either upright sidewinder position Tank position will vary accordingly used small 2-oz Per fect Brand metal tank replumbed rear pickup top vent small Sullivan RC 130 Model Aviation Ultimate Model 310 courtesy Jim Ifatt/Seneca II courtesy C & K Ventures Last An Automatic Full-Feathering Adjustable Pitch Propeller An exclusive 4patented mechanism lets adjust pitch 8-40 optimum perfor mance blades automa tically feather motor stops reduce drag give much Recommended 72-80 motor gliders similar models wing AZV loads up 14 ozI sq ft 05 direct drive systems e shaft Stock No MAO8XXE $2495 Suggested Retail Available Through Leading Distributors WINDSOR PROPELLER CO 384 Tesconl Ct Santa Rosa CA 95401 tank will also fit throttle system used has throttle cable enclosed nylon rod battery should placed alongside tank far forward possible Du-Bro switch mount positioned scrap filler model used 14 x 14-in balsa pushrods EZ connectors servo arm other threaded wire clevis Nylon rods could also used rudder unit does exit top fuselage Sportwagon must balance shown plans came out needing ballast however other engine-ALSO AERONCA Li6B/CHAI84 IN VULT BT-13 VALIANT 84 IN SPAN and-equipment combinations may require adding ballast nose tail Continued page 132 Safe Flying No Accident 4 Fokker D-VII VK Model Aircraft PO Box 3007 Aurora IL 60505 312-357-1883 F iA SCAlE SPT SCALE AONCA L3/EIThlDEE 105 IN 2 CYClE 90-13 /1 4 CYClE 12-18 ROLIiD PLAN SETS------- $20 EACH FIBERGLASS CCWIS--------- 20 EACH ADD 120SHPDlGNYS ADD 8QTAX AERO PLANS N PARTS PO BOX 939 OIEAN NY 14760 716 372 / April 1988 131 GATOR RIC PRODUCTS An new Tiger Tail 120 four strokes piped 60 two strokes beautiful performer competition just showing offl balsa kit machined wood parts complete hardware package includes plug-in adjustable stab parts new wing mounts Wing Span -72 inWing Area- 860 sq Complete Delux KitSI 5995 TIGER TAIL 4S DELUX ALL BALSA KIT PLUG-IN ADJUSTABLE STAB KIT last can optimize stab incidence best flight charac teristics pair glass filled nylon adjusters Included provide micro screw adjustment smaller front tube Main tube aluminum matching phenolic socket TRANSMITTER CASE An inexpensive rugged molded case protect expensive transmitter both two stick single stick transmitters Brown leather grain aluminum trim locking clasp S 1895 WING TUBE & SOCKETS Aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wing structure Now size models 718 dia 25 895 t/diax25 995 diax3S1495 feather Ilte glass cloth 7 az/sq yd est weave Fastest Filling test Finished Weight Big 3 Sq Yard Pkg Detailed Instructions S895 ENGINE SLEEVE & BEARING PULLER Pull sight sleeves bearings easily out damage new 60s 17MM rear bearings Sleeve Puller5 795 Bearing Puller5 695 Bothpor51395 IVANS MAGIC GADGET protractor device used Ivan Kristensen accurately measure aileron elevator rudder throw Takes guess work out tool complete instrutnons log trimming out airplane quality book carrying caseS 795 NEWI WING MOUMING SET wing mounting system developed Ron Chidgey fast neat accurate stays tight Three nylon brackets screws machined wood wing blocks included S 595 READY TO FLY Call 1-800-45-TO FLY *LOW PRICES *EASY TO ASSEMBLE *NO BUILDING *NO PAINTING Piper Cherokee-40 Piper Gherokee-25 Fokker E111-40 Fancy Stick-25 Cessna 172-20 engine included Zh SUNSHINE HOBBY 17721 South Western Avenue Gardena California 90247 Check free movement controls set up throws Covering Following usual practice used transparent MonoKote Cal sug gested lightweight silk tissue however model certainly would delightful covered silk new iron-on fab rics transparent colors would also viable alternative sprayed Poly U trim over Mono Kote light rubbing 000-grade steel wool aids adhesion preference Sig Stripe Rite masking Brushing coat Sig clear Skybrite great preventing bleeders also used Stripe Rite pin stripes letters vinyl stick-on ones office supply store Banner wheels used prototype certainly add appearance points used samples new hinge material model recommend Klett Sig pinned hinges safeguard drill hole insert small piece toothpick securing CyA covered Sportwagon RC equipment place hadnt done way quite some time really simpler easier effort Cut window holes out shrunken MonoKote Cut window plastic out line over plans using Wilhold RC 56 ad hesive secure windows inside frame windscreen will need trimmed slightly good fit Position inside ply rear onto tiny cut outs MonoKote Stripe Rite tape used joint primed tank engine compart ments Skybrite painted Poly U Flying Remember used fly sport Free Flight dream day wed able make turn back land feet Want bet thought went around Cal Smiths mind 1948 Well golly 37 years later can know some purists detest contra diction term what have RC-assisted Free Flight incarna tion Cals sexy little Free Flight gets fly around merrilyand get watch giving occasional directional changes $12999 $9599 $11999 $6999 $9999 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 POXY PRIMER K&B SUPER POXY PAINT 168 MIXING CUPS ground Point nose wind advance power up away goes radio may needed slight course corrections might change elevator bit adjust rate climb keep soaring too high flies adjust chugging around looking pretty re alistic air isnt what youre after use Sportwagon practice maneuvers like stall turns yes lazy loops model has excellent versatility Cal Smith did homework well Men Cal Smiths extraordinary gifts energy dont come along very often Artist author model designer Cal sort Renaissance man model avia tion closing 1969 tribute Model Airplane News excerpted above Bill Win ter declared Forgotten Cal will never hope updating Sportwagon will help keep memory its designer alive Radio Technique/Myers Continued page 33 Tach 2 still works must good idea Thanks Bob Making use idea presented column back October 79 Accu-Tach 2 handbook suggests used evaluate RC system installation cut battery lead aileron adapter cable con nect cut ends milliamoneter like Accu Tach 2 Put adapter between flight pack switch harness Turn transmitter receiver observe current being drawn try control its extreme position trim available same extreme can stall servo position will see amps jump way up stay up warning reset throttle stop clear epoxy out binges make additional clear ance pushrods etc can put modi fied aileron extender cable between servo receiver evaluate particular servo instal lation problems may work system installation insertion resistance Accu Tach 2 oscillator strobes display may drive system instability happens youll have make measure ment analog VOM kind pointer using 500 mA range 132 Model Aviation unuu ruriurmance System TOP PERFORMANCE K&B ENGINES AkplaneMauine K&B FUELS168 GLOW PLUGS 9 Blends4 Choices See Dealer Order Direct Inciude S2 Per Item UPS GATOR RIC PRODUCTS 3713 Pompano Dr acola FL 32514 l 476-8639
Edition: Model Aviation - 1988/04
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 128, 130, 131, 132
NO OCR TEXT NO OCR TEXT days standards can speculate what provocative idea must have seemed 35 years ago Other CL subjects mentioned F-86 Sabre fitted Dyna Jet fourengined Consolidated B-24 Cal did accom panying cover illustrations both planes originally appeared American Modeler Also shown Blunderbus October 1953 issue Air Trails forerunner American Modeler Blunderbus Free Flight cutie de signed around 1/2A engines just introduced time simple model embellished Cals artwork form isometric drawing wire cabane system parasol Blunderbus spotlighted several years ago yet another magazine resur rected RC sport plane Cal fact himself no stranger RC airplanes Se lected Annual single-channel K&B 13-powered Monocoupe 90 optional trike gear no less Janu ary 1955 issue other examples expertise RC abound Cal designed Wonderwings bipe Aeronca Champ two-foot scale Fokker D-8 Sopwith Bipe latter very earliest Giant Scale models interest RC extended model boats well publishing such di verse things surface submarine bunker boat missile ship collabo ration Frank Lashek some thing pioneer Annual spotlighted Cals Maverick unlimited hydro arti cle included line drawings construc tion well charcoal illustration boat running across pond opera tor thumbing merrily away singlechannel transmitter Other artworks featured An nual Meyers Little Toot pro file Little Toni both like F-86 Sabre Consolidated B-24 paired cover illustrations origi nal issues Cal earned immense distinction illus trator vivid artwork added singular dimension construction articles equaled few others either before since brilliant use subtle color coupled incredible accuracy novel way expressing movement has sel dom duplicated Cals cutaway per spective drawings compare favorably late Hank Clark cover art adorned faces innumerable maga zines notably American Aircraft Modeler 26 Model Aviation alternative power uoc iriu d Davis Dieselised 05 iu model small enough held inverted easily improved starting diesel engine swings large prop its size its torque makes Sportwagon ideal combination Flying Models otten swapped construction articles British modeling publications time cover annual plans books Cal Smith starting ignition engine original Sportwagon FUAoved super running engine tiuu perhaps bit too much such light model Sportwagon ca pable steep climbs half throttle elevators built integraiiy witn rudder pushrod passes through slot stab cut out hinged Mild aerobat fuselage top Small control horns should ics can done clevis connected used give rudder plenty throw bottom elevator horn Lett Uoc relers mo mis memnou urn grabber has used several designsproblems certainly makes clean wing mourn wirnuxtra effort Right Ace Bantam Midget servos 250 mAh batttry md Silver Seven receiver fit nicely fuselage Note wing dowel detail CAL SMITHS SPOR1WAGON DEVELOPED FOR R/C BY DR DBMATHEWS 3/16 PLY GRABBER 1/16 BALSA RIBS 3/16 SQ BALSA FRE 1/i SQ SQ BALSA FPE 1/1 x 3/16 BALSA 5156 STRINGEBS 1/3 x 1/2 BALSA SPAB \\ 8D1A I11A 3/16 x IA 3/32 PLY 3/16 PLY 2 3/16 SQ 1/A x 1/2 IL 3/16 x 3/32 SPABS l/I6SQBALSASPPdI 2 Its beauty like keeps selling translucent coverings such gorgeous ar rangement sticks could bear hide structure typical of Cals de signs provides rugged strength penalty excessive weight Doc decided modify original symmetrical airfoil stab easier-to-build flat-bottom section Among diverse cover subjects B-57s P-47s Fokker D-8 Goodyear rac ers missile cruiser X-15 Unlim fin rudder constructed lami nating strips balsa soaked ammonia water make flexible Spreading phatic resin Elmers glue along seams bonds laminations formed plans around piece foam board ited Hydro Sopwith Pups Stitts Playboy Glenn Curtiss racing Barney Oldfields old Number 99 action flight settings incredible beauty often companion model design article same issue magazine Although Cal Smith gave countless hours pleasurable building reading Im no way authority life character remarkably accomplished man Fellow modeler Bill Winter other hand knew Cal well fact Bill Cals earliest influential mentors Bill Cal Boys Bills eulogy former pupil lifelong friend October 1964 issue Model Airplane News have suffered inestimable loss almost long can remem ber source numberless de nose made %-in balsa sheeting carved sanded aesthetic shape Cals artistic eye originally provided Note bottom support piece windshield S/lB 3/32 BALSA SPARS TOP ORLY 3/lA BALSA SHEET /iII 3/1655 BALSA SPARS TOP 6 BOTTOM I/B I/2 BALSA 3PM BOTTOM ORLY 3116 BALSA SHEET \ S/lA BALSASTAB CENTERSLOT FOR FILLSETIOH RIBPINK va BALSA ~4tzEI~ TYPICAL HINSEfr~I 1/16 BALSA SHEET TOP B BOTTOM WING TILT /IA BAL~L FILL -ELEVAT0R4 3/IA PILL LAM PARS X-SECT STAB TIP THREE 3/IA 3/B BALSA DOWEL I/B 3/IA1 BALSAGRABBER 1/64 PLYWINS FRAMES/IA DO X-SECTINNER FRAME 1/B S/B V1EFILL LOOBINS FORWARD F-3 -SIS 91219 THS BU REAR WING MOUII 3/IA PLY ETAIL I1SO 5 BALSA 1/B SIA MUSIC WIRE LANDING GEAR DETAILBOTi 1/B 3125436 signs articles illustrations cover paint ings box wraps books helped make hobby others enjoyable light us saw re member him Cals versatility however went beyond things always surprised constant excursions other things instant au thentic expert exhibited typical interest thing around himhe expert scuba diving spearfishing ice boating wonderfully self-illustrated books equaled surpassed what gone before fields first recollection Cal goes back 1945 aviation editor met him through MAN cover artist Jo Kotula Smitty just out Air Force during WW H participated prepa ration flying safety manuals could ask man anything tackled it done perfection drew Smog Hog plans wrote getting-started article painted cover did how-to28 Model Aviation Full-Size Plans Available. See Page 172 SO SA IS TSP SflOM 3/INI/2 3/B BALSA SA I/4I/2 BALSA LEADING EDGE 1/4 BALSA BALSA TILT WITH 26WING TILTWING PLAN TOP VIEW 3/IN 55 BALSA TOP ONLY 3/16 BALSA GADGETS - NGTIH 3/16 BALSAGTA RIBSHARSWODD-SHhE 3 EDGEI/IN BALSATO YE STOCKS/IN PLY _________________________MOTOR MOUNT 3LAMSqF V16 3/IN BALSA F-2 liltILFIREWALL E4 3/165/BS/RSO ALSABASSWOODLITE PLYTYPICAL 3/4SERVO RAILSERVO OCKF-SA/7 3/B BALSA SHEET COWL CHEEKSF4 DOWELI/B 3/16 BALSA 015 CLEAR1/64 PLYSIDE STRINGERS WINDSCREENS1/4 1/2 SPRUCE WITh PLASTICFRAMEB 32 NYLON BOLT INTO DIG DH-219 BLOCK-UNDER 3/32 BALSA SHEETSCRAP FILL 3/323/16 S/B/006 CLEAR//B LSA3/16 50 BALSA SCRAP /WINDOWS/PR ME SHEET FILL -I--- TEETFILL--1/ii AL BRAIN PULTjI~/_ IOTOIGP3 NEp4pF-NF F-N 3/IN BALSAI/B 3/16 BALSA FILL / YE PLY SCRAP BALSA/SERVO RAILS COHERING SUPPORTII/B 5116SIDE MUSIC WIREFUSELAGEVIEW THIN PLY OR 2-1/2 5116BALSA PAIRING WHEELSIAPTIONALI -S/32 BALSA SHEET RIB 3/32 BALSA TIP RIBS ARE SET ON TOP OF REAR SPAR-PALL OTHER SPARS DOWN ONTO TIP __- __ II __ 11IIll ItIll1 _____ II r iii ________ ____l'i ir I/I BALSA T E STOCKWING TIP DETAIL I3/16 BALSA SHEETSANS AFTER ASSEMBLY 5/16 50 BALSA F- 7 3/16 BALSA SHEET___________________ 015 CLEAR PLASTIC WINDSCREEN PAT 5/IN BALSA SHEET FILL STABILIZER MOUNT 3/16 SO BALSK S/IN 3/B 3/16 BALSABALSA S AD SET 3/16 50/ BALSA / FIN I/B S/IN~BALSA S/IN BALSA SHY THREE JAMINTONS OF 1/16 3/16 BBLSA FORMED DEFLE CT IONS RUDDER I/2LB B ELEVI/ZUBD RuDRND DIG SHORT PUSHNOD EDIT RIGHT SIDE I/IN DIA MWNO MODEL AVIATION CAL SMIThS SPORT WAGON 3/16 BALSA SHEET FROM FLYING MODELS AUG 1948 DEVELOPED FOR R/C BY DR 0 9 MATHEWS TRACING BY JOE DEMARCO do-it sketch model book fullcolor illustration Colliers hard cover work scholarly book world plastic kit box wrapthe result above criticism' recently letter sent response photos Sportwagon Bill put incisively Cal Smith God de stroyed mold History Sportwagon Bill Winter re calls sitting Cals home evening said Cal ought de sign sexy little Free Flight Cal took bait published result Flying Models magazine during stint technical editor late Forties Certain models linger ones mind seem ingly forever often submerged sub conscious just awaiting chance burst back awareness again Sportwagon case point Although planes 1948 Flying Models debut im pressed enormously its distinctive attractive appearance point career Id lost interest Free Flight transferred enthusiasm Control Line obviously attraction held never got around building Sportwagon original plans still wasnt about let go August 1948 Flying Models featured Cals construc tion article magazine carted over country us 1977 British friend Ray Hull sent magazine collection Included incredibly interesting batch British mags 1949 edition Model Plans An nual serieswith black-and-white photo Cal Smith starting Sportwagon cover Inside reprint Flying Models articles appears British Model Aviation series American magazine Flying Models often crosspublished others designs same Annual fact also contained Walt Schro ders Jersey Javelin 1949 British publication turned out catalyst needed Out subcon scious Sportwagon tumbled right away came inspiration adding RC sist Cal alive today thought might well redesign sexy little Free Flight RC sport didnt self try make everything Cal would have wanted hope Ive achieved objective first impulse enlarge 54-in prototype reconsidered stayed Cals original wingspan dimension Cals classic force-moment arrangement sport Free Flight works wonderfully RC conversion 61 aspect ratio 1 per ft span dihedral 45% tail mo ment arm 33% tail area 7% fin area add up delightful model Other pertinent design factors Underpower model using power loading 150 200 oz per cu engine Build wing loading 7 11 oz per sq ft area Use tough covering undercarriage Somehow parameters seem have etched subcon scious right along Sportwagon else explain appear over April 1988 29 TA CENTER SECT RIB 5/32 PLY JOINER 3/IN PLY GRABBER F-S / TAPER I/B SO BALSA BOTTOM STRINGERS SPECIFICATIONS ENGINEID TO 15 WEIGHT3D OZ WING CHORD9-1/4 WING SPAN 54 WING AREA 330 SOFT WING IAAflIfl /SSFT 30 Model Aviation over again own designs Cal powered prototype Bantam 19 ignition also known use Forster 29 British Model Plans Annual suggested using E D Comp Spe cial Mills 24 Ailbon 28 K Vulture Ive found diesel engine roughly 15 Cu capacity fits Cals inten tions closely Forster 29 can envision RC Sportwagon having appeal several different groups mod elers slowly growing numbers Nos talgia RC enthusiasts would certainly interested Old-timers share rever ence original Sportwagon would want try RC version too Maybe modeler whos just shopping really sexy-looking sport RC would also find filled bill Whoever whatever reason build yourself Sportwagon Construction Cyanoacrylate CyA primary adhesive used throughout Ali phatic resin Sig Bond etc used lam inate various outlines five-minute epoxy adhere plywood parts wood balsa unless otherwise speci fied use medium-weight C grain Strip wood should clear knots also medium weight customary Cals models structure strong side same time well stressed relatively easy fabricate Wing Develop master plywood rib tem plate tracing onto wood placing car bon paper between latter underside plans Use pattern stack cut ribs Alternatively cut out knife using metal template Wing tip segments constructed same way should preassembled before installation Notch trailing edge stock razor saw better yet blade reversed jigsaw Taper rear spar before assembly order have reference point tip Build center section integrally left panel making sure ribs ver tical contrast tilt outboard rib has set jig Place scraps 346-in sheet under leading edge assembly building sur face Lay wings down working spars forward making sure ribs positioned properly tip ribs can trimmed master ribs slic ing bottom center section leading edge filler sheet best left uncontoured until wing panels have joined Obviously out board filler should cut match cline ribs After sanding dihedral bevel block against table face join panels using five-minute epoxy clothespins Custom fit ply dihedral brace wing cutting slot through ribs against spar faces Hacksaw blades taped together work well Slide Continued page 128 PRECISION MODEL PRODUCTS 4ff pM Made USA BARSTOCK Retail Approx Pert No SizePrice Weight TT-1 50-B. 1-1/2$1395. 058 oz TT-1 75-B . 1-3/41495 095 oz TT-200-B .21595. 100 TT-225-B 41895. 155 TT-226-B 4 FAll1895. 145 -2B. 2-1/21895. 188 TT-251-B 2 FAll2095. 166 oz TT-275-B. 2-3/42295 215 TT-276-B. 2-3/4 FAll2495 200 TT-300-B 32695 258 os TT-301-B 3 FAIl2895 247 oz TT-325-B 43695. 340 az 3 Pieces Cone Back Plate Retainer Screw Nate 3 4 Blade Spinners Available Sizes Add $300 Per Spinner Available Sizes Add $300 Per Spinner PROP NuT AflAPTOR Retell Approx Pert No SizePrice Weight TT-140-A. 1/4-28$495 061 TT-147-A 1/4-28/7mm 495 061 oz TT-610-A mm495. 063az TT-710-A mm495. 082os fl-51 6-A 5/16-24495. 076 fl-810-A mm495. 076oz TT-825-A. 8 xl 25mm.. 495. 075 os TT-375-A. 3/8-24595 Os lT-125-A l2Smm. 595. 1lSos 3 Piece Set Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 FOAM WING CORES SEND 150 FOR DESCRIPTIVE PRODUCT CATALOG u.umuummmuinuummuuuuuuuuuua U FU U U PRECISION MADE EXPANDED BEAD POLYSTYRENE REPLACEMENT WING & STAB CORES FOR ALL POPULAR R/C AIRCRAFt OVER 250 DIFFERENT WINGS U IN STOCK FOR IMMEDIATE DELI VERK SO IF FAVORITE BIRD THAT NEEDS WING CALL ORI I IU ___________________________ ii U U U U U IUUEEEEEUUUEEUUUUUUUUUUUEUUUUUUUUEUEEUEUI WYiV MF6 WING MFG PO BOX 33 CRYSTAL LAKE IL 60014 beck suggest two D-cells would give few spurts amperage poop out also phoned explain problemand backed up sending Eveready 15-volt battery couldnt obtain elsewhere battery hard find can bet sent letter Union Carbide Corp ask no #1S6 1-volt batteries hobby shopsand no advertis ing modeling magazines Its item surely need second problem Cox Black Widow 049 Murphy claimed screw just vanished held backplate fuel tank en gine No magnet could find sent Cox Hobbies letter requesting screw Black Widow 049 enclosed $100 cash Several weeks later received current catalog price list packet screws parts 049 overhaul kit retailing $105 No payment due Golly old veterans heart goes out two American manufacturers gratitude help gave freely Lee Hoffman Banning CA two firms representative aeromodeling field really strive high level customer satisfac tion Maybe thats because run modelers modelers us con sumers really quite lucky know have quality things can pur chase make modeling easier and/or enjoyable Sportwagon/Mathews Continued page 30 ply blank slot mark oufline pencil Cut out epoxy place install grabber time Carve sand leading edge tips trailing edge contour Although Cal covered leading edge 2 sheeting obvious reasons doesnt suit present purposes Fuselage Standard box-type construction employed frame built over other using scraps masking tape prevent sticking substituted mod ern radial mount breakaway engine beams prototype Its good idea assemble form ers bulkheads fuselage frames curing Again use carbon paper build jig frames #3 #4 directly over drawings Remove frames pop apart using table knife Sand bevel tail posts place right frame over drawing Trial fit adjust formers necessary fit snugly frame tach CyA making sure right angles planes Install left frame onto formers checking alignment triangle etc prefer leave box building sur face jacking up tail post exactly one-half fuselage width Glue left frame place cut crosspieces pairs using top view guide An alternative method would involve re moving box setting directly over top view constructing either case sure tail post center midline stab seat level Bend landing gear over drawing using large vise-grip pliers bench vise cutoff wheel also useful attempt rebend mistake just toss start over unit held #3 nylon clips Its wise predrill #3 before installing gear Attach bottom formers stringers Moisten top sheeting ammonia water pull down over firewall former side stringers taper rear filler strips around win dows taper up wing seat CyA 1/64 ply window frames stringer filler strips Sheet plastic windows will attached inside frames after fuselage has covered makes very neat easily installed window treatment Attach wing saddle fillers dowel five-minute epoxy Make sure dowel center runs level along both planes Joining wing fuselage Hold 128 Model Aviation WHEN USING THE CK-3 ONLY THE SIZE IS DIFFERENT win Engine Control Normal single throttle stick control over both engines Absolute engine synchronization advanced throttle settings via small adjustments RUDDER trim Realistic outboard engine advancement during turns taxi throttle settings via RUDDER control Completely realistic 1141 scale engine control during taxz synchronization flight finally available Works radio system digital CMOS No tuned circuits Installation instructions included -NOT simple coupling device Advancing engine does NOT retard other engine Order CK-3 just $4995 S&H C & K Ventures / 1807 Park / Laramie WY / 82070 Phone 307-745-7557 Order 24 hours day Please call write complete information add just device dream RC twin quest absolute realism onel 'grabber against ply brace clamps slide wing over front dowel Adjust center section wing parallel fuselage sides Use piece heavy string has pinned tail post check wing exactly right angles fuselage Measure common point both tips tail post adjusting until exactly Mark point grabber epoxy joiner Return wing seat recheck string Using drill size corresponding nylon bolt drill down through hardwood trail ing edge underlying hardwood block Screw bolt pre-tapped Sig block pull up against hardwood wing saddle hit CyA tapped hole bolt could used instead hardwood rear saddle would probably need thicker stock Initially tried Cals rubberband wing hold-on technique unable keep wing sliding rear Perhaps single dowel running forward have grabber dowel would work Empennage original Sportwagon used symmetrical stab section con structing joining fuselage used flat-bottom section sake simplicity also chose flat fin-rudder sembly airfoil Make laminated outlines moisten ing strips balsa ammonia water spreading aliphatic resin along seams laminations formed either over plans using pins along perime ter over foam board patterns horizontal stabilizer ribs con structed much same manner wing ribs Lay sheet center section down add spars ribs leading trailing edges Use straightedge mark cut %-in slots ribs two hinge line spars CyA place trim edges tips install Use sanding block final contouring hinge spars match ribs Add top center section sheeting al lowing fin slot After final sanding sep arate elevator portion cut slots hinges install perma nently Since elevator horn screw plate will under covering CyA Lite Ply base fin construction selfexplanatory Installing hardware decided verted mounting engine can also installed either upright sidewinder position Tank position will vary accordingly used small 2-oz Per fect Brand metal tank replumbed rear pickup top vent small Sullivan RC 130 Model Aviation Ultimate Model 310 courtesy Jim Ifatt/Seneca II courtesy C & K Ventures Last An Automatic Full-Feathering Adjustable Pitch Propeller An exclusive 4patented mechanism lets adjust pitch 8-40 optimum perfor mance blades automa tically feather motor stops reduce drag give much Recommended 72-80 motor gliders similar models wing AZV loads up 14 ozI sq ft 05 direct drive systems e shaft Stock No MAO8XXE $2495 Suggested Retail Available Through Leading Distributors WINDSOR PROPELLER CO 384 Tesconl Ct Santa Rosa CA 95401 tank will also fit throttle system used has throttle cable enclosed nylon rod battery should placed alongside tank far forward possible Du-Bro switch mount positioned scrap filler model used 14 x 14-in balsa pushrods EZ connectors servo arm other threaded wire clevis Nylon rods could also used rudder unit does exit top fuselage Sportwagon must balance shown plans came out needing ballast however other engine-ALSO AERONCA Li6B/CHAI84 IN VULT BT-13 VALIANT 84 IN SPAN and-equipment combinations may require adding ballast nose tail Continued page 132 Safe Flying No Accident 4 Fokker D-VII VK Model Aircraft PO Box 3007 Aurora IL 60505 312-357-1883 F iA SCAlE SPT SCALE AONCA L3/EIThlDEE 105 IN 2 CYClE 90-13 /1 4 CYClE 12-18 ROLIiD PLAN SETS------- $20 EACH FIBERGLASS CCWIS--------- 20 EACH ADD 120SHPDlGNYS ADD 8QTAX AERO PLANS N PARTS PO BOX 939 OIEAN NY 14760 716 372 / April 1988 131 GATOR RIC PRODUCTS An new Tiger Tail 120 four strokes piped 60 two strokes beautiful performer competition just showing offl balsa kit machined wood parts complete hardware package includes plug-in adjustable stab parts new wing mounts Wing Span -72 inWing Area- 860 sq Complete Delux KitSI 5995 TIGER TAIL 4S DELUX ALL BALSA KIT PLUG-IN ADJUSTABLE STAB KIT last can optimize stab incidence best flight charac teristics pair glass filled nylon adjusters Included provide micro screw adjustment smaller front tube Main tube aluminum matching phenolic socket TRANSMITTER CASE An inexpensive rugged molded case protect expensive transmitter both two stick single stick transmitters Brown leather grain aluminum trim locking clasp S 1895 WING TUBE & SOCKETS Aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wing structure Now size models 718 dia 25 895 t/diax25 995 diax3S1495 feather Ilte glass cloth 7 az/sq yd est weave Fastest Filling test Finished Weight Big 3 Sq Yard Pkg Detailed Instructions S895 ENGINE SLEEVE & BEARING PULLER Pull sight sleeves bearings easily out damage new 60s 17MM rear bearings Sleeve Puller5 795 Bearing Puller5 695 Bothpor51395 IVANS MAGIC GADGET protractor device used Ivan Kristensen accurately measure aileron elevator rudder throw Takes guess work out tool complete instrutnons log trimming out airplane quality book carrying caseS 795 NEWI WING MOUMING SET wing mounting system developed Ron Chidgey fast neat accurate stays tight Three nylon brackets screws machined wood wing blocks included S 595 READY TO FLY Call 1-800-45-TO FLY *LOW PRICES *EASY TO ASSEMBLE *NO BUILDING *NO PAINTING Piper Cherokee-40 Piper Gherokee-25 Fokker E111-40 Fancy Stick-25 Cessna 172-20 engine included Zh SUNSHINE HOBBY 17721 South Western Avenue Gardena California 90247 Check free movement controls set up throws Covering Following usual practice used transparent MonoKote Cal sug gested lightweight silk tissue however model certainly would delightful covered silk new iron-on fab rics transparent colors would also viable alternative sprayed Poly U trim over Mono Kote light rubbing 000-grade steel wool aids adhesion preference Sig Stripe Rite masking Brushing coat Sig clear Skybrite great preventing bleeders also used Stripe Rite pin stripes letters vinyl stick-on ones office supply store Banner wheels used prototype certainly add appearance points used samples new hinge material model recommend Klett Sig pinned hinges safeguard drill hole insert small piece toothpick securing CyA covered Sportwagon RC equipment place hadnt done way quite some time really simpler easier effort Cut window holes out shrunken MonoKote Cut window plastic out line over plans using Wilhold RC 56 ad hesive secure windows inside frame windscreen will need trimmed slightly good fit Position inside ply rear onto tiny cut outs MonoKote Stripe Rite tape used joint primed tank engine compart ments Skybrite painted Poly U Flying Remember used fly sport Free Flight dream day wed able make turn back land feet Want bet thought went around Cal Smiths mind 1948 Well golly 37 years later can know some purists detest contra diction term what have RC-assisted Free Flight incarna tion Cals sexy little Free Flight gets fly around merrilyand get watch giving occasional directional changes $12999 $9599 $11999 $6999 $9999 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 POXY PRIMER K&B SUPER POXY PAINT 168 MIXING CUPS ground Point nose wind advance power up away goes radio may needed slight course corrections might change elevator bit adjust rate climb keep soaring too high flies adjust chugging around looking pretty re alistic air isnt what youre after use Sportwagon practice maneuvers like stall turns yes lazy loops model has excellent versatility Cal Smith did homework well Men Cal Smiths extraordinary gifts energy dont come along very often Artist author model designer Cal sort Renaissance man model avia tion closing 1969 tribute Model Airplane News excerpted above Bill Win ter declared Forgotten Cal will never hope updating Sportwagon will help keep memory its designer alive Radio Technique/Myers Continued page 33 Tach 2 still works must good idea Thanks Bob Making use idea presented column back October 79 Accu-Tach 2 handbook suggests used evaluate RC system installation cut battery lead aileron adapter cable con nect cut ends milliamoneter like Accu Tach 2 Put adapter between flight pack switch harness Turn transmitter receiver observe current being drawn try control its extreme position trim available same extreme can stall servo position will see amps jump way up stay up warning reset throttle stop clear epoxy out binges make additional clear ance pushrods etc can put modi fied aileron extender cable between servo receiver evaluate particular servo instal lation problems may work system installation insertion resistance Accu Tach 2 oscillator strobes display may drive system instability happens youll have make measure ment analog VOM kind pointer using 500 mA range 132 Model Aviation unuu ruriurmance System TOP PERFORMANCE K&B ENGINES AkplaneMauine K&B FUELS168 GLOW PLUGS 9 Blends4 Choices See Dealer Order Direct Inciude S2 Per Item UPS GATOR RIC PRODUCTS 3713 Pompano Dr acola FL 32514 l 476-8639
Edition: Model Aviation - 1988/04
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 128, 130, 131, 132
NO OCR TEXT NO OCR TEXT days standards can speculate what provocative idea must have seemed 35 years ago Other CL subjects mentioned F-86 Sabre fitted Dyna Jet fourengined Consolidated B-24 Cal did accom panying cover illustrations both planes originally appeared American Modeler Also shown Blunderbus October 1953 issue Air Trails forerunner American Modeler Blunderbus Free Flight cutie de signed around 1/2A engines just introduced time simple model embellished Cals artwork form isometric drawing wire cabane system parasol Blunderbus spotlighted several years ago yet another magazine resur rected RC sport plane Cal fact himself no stranger RC airplanes Se lected Annual single-channel K&B 13-powered Monocoupe 90 optional trike gear no less Janu ary 1955 issue other examples expertise RC abound Cal designed Wonderwings bipe Aeronca Champ two-foot scale Fokker D-8 Sopwith Bipe latter very earliest Giant Scale models interest RC extended model boats well publishing such di verse things surface submarine bunker boat missile ship collabo ration Frank Lashek some thing pioneer Annual spotlighted Cals Maverick unlimited hydro arti cle included line drawings construc tion well charcoal illustration boat running across pond opera tor thumbing merrily away singlechannel transmitter Other artworks featured An nual Meyers Little Toot pro file Little Toni both like F-86 Sabre Consolidated B-24 paired cover illustrations origi nal issues Cal earned immense distinction illus trator vivid artwork added singular dimension construction articles equaled few others either before since brilliant use subtle color coupled incredible accuracy novel way expressing movement has sel dom duplicated Cals cutaway per spective drawings compare favorably late Hank Clark cover art adorned faces innumerable maga zines notably American Aircraft Modeler 26 Model Aviation alternative power uoc iriu d Davis Dieselised 05 iu model small enough held inverted easily improved starting diesel engine swings large prop its size its torque makes Sportwagon ideal combination Flying Models otten swapped construction articles British modeling publications time cover annual plans books Cal Smith starting ignition engine original Sportwagon FUAoved super running engine tiuu perhaps bit too much such light model Sportwagon ca pable steep climbs half throttle elevators built integraiiy witn rudder pushrod passes through slot stab cut out hinged Mild aerobat fuselage top Small control horns should ics can done clevis connected used give rudder plenty throw bottom elevator horn Lett Uoc relers mo mis memnou urn grabber has used several designsproblems certainly makes clean wing mourn wirnuxtra effort Right Ace Bantam Midget servos 250 mAh batttry md Silver Seven receiver fit nicely fuselage Note wing dowel detail CAL SMITHS SPOR1WAGON DEVELOPED FOR R/C BY DR DBMATHEWS 3/16 PLY GRABBER 1/16 BALSA RIBS 3/16 SQ BALSA FRE 1/i SQ SQ BALSA FPE 1/1 x 3/16 BALSA 5156 STRINGEBS 1/3 x 1/2 BALSA SPAB \\ 8D1A I11A 3/16 x IA 3/32 PLY 3/16 PLY 2 3/16 SQ 1/A x 1/2 IL 3/16 x 3/32 SPABS l/I6SQBALSASPPdI 2 Its beauty like keeps selling translucent coverings such gorgeous ar rangement sticks could bear hide structure typical of Cals de signs provides rugged strength penalty excessive weight Doc decided modify original symmetrical airfoil stab easier-to-build flat-bottom section Among diverse cover subjects B-57s P-47s Fokker D-8 Goodyear rac ers missile cruiser X-15 Unlim fin rudder constructed lami nating strips balsa soaked ammonia water make flexible Spreading phatic resin Elmers glue along seams bonds laminations formed plans around piece foam board ited Hydro Sopwith Pups Stitts Playboy Glenn Curtiss racing Barney Oldfields old Number 99 action flight settings incredible beauty often companion model design article same issue magazine Although Cal Smith gave countless hours pleasurable building reading Im no way authority life character remarkably accomplished man Fellow modeler Bill Winter other hand knew Cal well fact Bill Cals earliest influential mentors Bill Cal Boys Bills eulogy former pupil lifelong friend October 1964 issue Model Airplane News have suffered inestimable loss almost long can remem ber source numberless de nose made %-in balsa sheeting carved sanded aesthetic shape Cals artistic eye originally provided Note bottom support piece windshield S/lB 3/32 BALSA SPARS TOP ORLY 3/lA BALSA SHEET /iII 3/1655 BALSA SPARS TOP 6 BOTTOM I/B I/2 BALSA 3PM BOTTOM ORLY 3116 BALSA SHEET \ S/lA BALSASTAB CENTERSLOT FOR FILLSETIOH RIBPINK va BALSA ~4tzEI~ TYPICAL HINSEfr~I 1/16 BALSA SHEET TOP B BOTTOM WING TILT /IA BAL~L FILL -ELEVAT0R4 3/IA PILL LAM PARS X-SECT STAB TIP THREE 3/IA 3/B BALSA DOWEL I/B 3/IA1 BALSAGRABBER 1/64 PLYWINS FRAMES/IA DO X-SECTINNER FRAME 1/B S/B V1EFILL LOOBINS FORWARD F-3 -SIS 91219 THS BU REAR WING MOUII 3/IA PLY ETAIL I1SO 5 BALSA 1/B SIA MUSIC WIRE LANDING GEAR DETAILBOTi 1/B 3125436 signs articles illustrations cover paint ings box wraps books helped make hobby others enjoyable light us saw re member him Cals versatility however went beyond things always surprised constant excursions other things instant au thentic expert exhibited typical interest thing around himhe expert scuba diving spearfishing ice boating wonderfully self-illustrated books equaled surpassed what gone before fields first recollection Cal goes back 1945 aviation editor met him through MAN cover artist Jo Kotula Smitty just out Air Force during WW H participated prepa ration flying safety manuals could ask man anything tackled it done perfection drew Smog Hog plans wrote getting-started article painted cover did how-to28 Model Aviation Full-Size Plans Available. See Page 172 SO SA IS TSP SflOM 3/INI/2 3/B BALSA SA I/4I/2 BALSA LEADING EDGE 1/4 BALSA BALSA TILT WITH 26WING TILTWING PLAN TOP VIEW 3/IN 55 BALSA TOP ONLY 3/16 BALSA GADGETS - NGTIH 3/16 BALSAGTA RIBSHARSWODD-SHhE 3 EDGEI/IN BALSATO YE STOCKS/IN PLY _________________________MOTOR MOUNT 3LAMSqF V16 3/IN BALSA F-2 liltILFIREWALL E4 3/165/BS/RSO ALSABASSWOODLITE PLYTYPICAL 3/4SERVO RAILSERVO OCKF-SA/7 3/B BALSA SHEET COWL CHEEKSF4 DOWELI/B 3/16 BALSA 015 CLEAR1/64 PLYSIDE STRINGERS WINDSCREENS1/4 1/2 SPRUCE WITh PLASTICFRAMEB 32 NYLON BOLT INTO DIG DH-219 BLOCK-UNDER 3/32 BALSA SHEETSCRAP FILL 3/323/16 S/B/006 CLEAR//B LSA3/16 50 BALSA SCRAP /WINDOWS/PR ME SHEET FILL -I--- TEETFILL--1/ii AL BRAIN PULTjI~/_ IOTOIGP3 NEp4pF-NF F-N 3/IN BALSAI/B 3/16 BALSA FILL / YE PLY SCRAP BALSA/SERVO RAILS COHERING SUPPORTII/B 5116SIDE MUSIC WIREFUSELAGEVIEW THIN PLY OR 2-1/2 5116BALSA PAIRING WHEELSIAPTIONALI -S/32 BALSA SHEET RIB 3/32 BALSA TIP RIBS ARE SET ON TOP OF REAR SPAR-PALL OTHER SPARS DOWN ONTO TIP __- __ II __ 11IIll ItIll1 _____ II r iii ________ ____l'i ir I/I BALSA T E STOCKWING TIP DETAIL I3/16 BALSA SHEETSANS AFTER ASSEMBLY 5/16 50 BALSA F- 7 3/16 BALSA SHEET___________________ 015 CLEAR PLASTIC WINDSCREEN PAT 5/IN BALSA SHEET FILL STABILIZER MOUNT 3/16 SO BALSK S/IN 3/B 3/16 BALSABALSA S AD SET 3/16 50/ BALSA / FIN I/B S/IN~BALSA S/IN BALSA SHY THREE JAMINTONS OF 1/16 3/16 BBLSA FORMED DEFLE CT IONS RUDDER I/2LB B ELEVI/ZUBD RuDRND DIG SHORT PUSHNOD EDIT RIGHT SIDE I/IN DIA MWNO MODEL AVIATION CAL SMIThS SPORT WAGON 3/16 BALSA SHEET FROM FLYING MODELS AUG 1948 DEVELOPED FOR R/C BY DR 0 9 MATHEWS TRACING BY JOE DEMARCO do-it sketch model book fullcolor illustration Colliers hard cover work scholarly book world plastic kit box wrapthe result above criticism' recently letter sent response photos Sportwagon Bill put incisively Cal Smith God de stroyed mold History Sportwagon Bill Winter re calls sitting Cals home evening said Cal ought de sign sexy little Free Flight Cal took bait published result Flying Models magazine during stint technical editor late Forties Certain models linger ones mind seem ingly forever often submerged sub conscious just awaiting chance burst back awareness again Sportwagon case point Although planes 1948 Flying Models debut im pressed enormously its distinctive attractive appearance point career Id lost interest Free Flight transferred enthusiasm Control Line obviously attraction held never got around building Sportwagon original plans still wasnt about let go August 1948 Flying Models featured Cals construc tion article magazine carted over country us 1977 British friend Ray Hull sent magazine collection Included incredibly interesting batch British mags 1949 edition Model Plans An nual serieswith black-and-white photo Cal Smith starting Sportwagon cover Inside reprint Flying Models articles appears British Model Aviation series American magazine Flying Models often crosspublished others designs same Annual fact also contained Walt Schro ders Jersey Javelin 1949 British publication turned out catalyst needed Out subcon scious Sportwagon tumbled right away came inspiration adding RC sist Cal alive today thought might well redesign sexy little Free Flight RC sport didnt self try make everything Cal would have wanted hope Ive achieved objective first impulse enlarge 54-in prototype reconsidered stayed Cals original wingspan dimension Cals classic force-moment arrangement sport Free Flight works wonderfully RC conversion 61 aspect ratio 1 per ft span dihedral 45% tail mo ment arm 33% tail area 7% fin area add up delightful model Other pertinent design factors Underpower model using power loading 150 200 oz per cu engine Build wing loading 7 11 oz per sq ft area Use tough covering undercarriage Somehow parameters seem have etched subcon scious right along Sportwagon else explain appear over April 1988 29 TA CENTER SECT RIB 5/32 PLY JOINER 3/IN PLY GRABBER F-S / TAPER I/B SO BALSA BOTTOM STRINGERS SPECIFICATIONS ENGINEID TO 15 WEIGHT3D OZ WING CHORD9-1/4 WING SPAN 54 WING AREA 330 SOFT WING IAAflIfl /SSFT 30 Model Aviation over again own designs Cal powered prototype Bantam 19 ignition also known use Forster 29 British Model Plans Annual suggested using E D Comp Spe cial Mills 24 Ailbon 28 K Vulture Ive found diesel engine roughly 15 Cu capacity fits Cals inten tions closely Forster 29 can envision RC Sportwagon having appeal several different groups mod elers slowly growing numbers Nos talgia RC enthusiasts would certainly interested Old-timers share rever ence original Sportwagon would want try RC version too Maybe modeler whos just shopping really sexy-looking sport RC would also find filled bill Whoever whatever reason build yourself Sportwagon Construction Cyanoacrylate CyA primary adhesive used throughout Ali phatic resin Sig Bond etc used lam inate various outlines five-minute epoxy adhere plywood parts wood balsa unless otherwise speci fied use medium-weight C grain Strip wood should clear knots also medium weight customary Cals models structure strong side same time well stressed relatively easy fabricate Wing Develop master plywood rib tem plate tracing onto wood placing car bon paper between latter underside plans Use pattern stack cut ribs Alternatively cut out knife using metal template Wing tip segments constructed same way should preassembled before installation Notch trailing edge stock razor saw better yet blade reversed jigsaw Taper rear spar before assembly order have reference point tip Build center section integrally left panel making sure ribs ver tical contrast tilt outboard rib has set jig Place scraps 346-in sheet under leading edge assembly building sur face Lay wings down working spars forward making sure ribs positioned properly tip ribs can trimmed master ribs slic ing bottom center section leading edge filler sheet best left uncontoured until wing panels have joined Obviously out board filler should cut match cline ribs After sanding dihedral bevel block against table face join panels using five-minute epoxy clothespins Custom fit ply dihedral brace wing cutting slot through ribs against spar faces Hacksaw blades taped together work well Slide Continued page 128 PRECISION MODEL PRODUCTS 4ff pM Made USA BARSTOCK Retail Approx Pert No SizePrice Weight TT-1 50-B. 1-1/2$1395. 058 oz TT-1 75-B . 1-3/41495 095 oz TT-200-B .21595. 100 TT-225-B 41895. 155 TT-226-B 4 FAll1895. 145 -2B. 2-1/21895. 188 TT-251-B 2 FAll2095. 166 oz TT-275-B. 2-3/42295 215 TT-276-B. 2-3/4 FAll2495 200 TT-300-B 32695 258 os TT-301-B 3 FAIl2895 247 oz TT-325-B 43695. 340 az 3 Pieces Cone Back Plate Retainer Screw Nate 3 4 Blade Spinners Available Sizes Add $300 Per Spinner Available Sizes Add $300 Per Spinner PROP NuT AflAPTOR Retell Approx Pert No SizePrice Weight TT-140-A. 1/4-28$495 061 TT-147-A 1/4-28/7mm 495 061 oz TT-610-A mm495. 063az TT-710-A mm495. 082os fl-51 6-A 5/16-24495. 076 fl-810-A mm495. 076oz TT-825-A. 8 xl 25mm.. 495. 075 os TT-375-A. 3/8-24595 Os lT-125-A l2Smm. 595. 1lSos 3 Piece Set Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 FOAM WING CORES SEND 150 FOR DESCRIPTIVE PRODUCT CATALOG u.umuummmuinuummuuuuuuuuuua U FU U U PRECISION MADE EXPANDED BEAD POLYSTYRENE REPLACEMENT WING & STAB CORES FOR ALL POPULAR R/C AIRCRAFt OVER 250 DIFFERENT WINGS U IN STOCK FOR IMMEDIATE DELI VERK SO IF FAVORITE BIRD THAT NEEDS WING CALL ORI I IU ___________________________ ii U U U U U IUUEEEEEUUUEEUUUUUUUUUUUEUUUUUUUUEUEEUEUI WYiV MF6 WING MFG PO BOX 33 CRYSTAL LAKE IL 60014 beck suggest two D-cells would give few spurts amperage poop out also phoned explain problemand backed up sending Eveready 15-volt battery couldnt obtain elsewhere battery hard find can bet sent letter Union Carbide Corp ask no #1S6 1-volt batteries hobby shopsand no advertis ing modeling magazines Its item surely need second problem Cox Black Widow 049 Murphy claimed screw just vanished held backplate fuel tank en gine No magnet could find sent Cox Hobbies letter requesting screw Black Widow 049 enclosed $100 cash Several weeks later received current catalog price list packet screws parts 049 overhaul kit retailing $105 No payment due Golly old veterans heart goes out two American manufacturers gratitude help gave freely Lee Hoffman Banning CA two firms representative aeromodeling field really strive high level customer satisfac tion Maybe thats because run modelers modelers us con sumers really quite lucky know have quality things can pur chase make modeling easier and/or enjoyable Sportwagon/Mathews Continued page 30 ply blank slot mark oufline pencil Cut out epoxy place install grabber time Carve sand leading edge tips trailing edge contour Although Cal covered leading edge 2 sheeting obvious reasons doesnt suit present purposes Fuselage Standard box-type construction employed frame built over other using scraps masking tape prevent sticking substituted mod ern radial mount breakaway engine beams prototype Its good idea assemble form ers bulkheads fuselage frames curing Again use carbon paper build jig frames #3 #4 directly over drawings Remove frames pop apart using table knife Sand bevel tail posts place right frame over drawing Trial fit adjust formers necessary fit snugly frame tach CyA making sure right angles planes Install left frame onto formers checking alignment triangle etc prefer leave box building sur face jacking up tail post exactly one-half fuselage width Glue left frame place cut crosspieces pairs using top view guide An alternative method would involve re moving box setting directly over top view constructing either case sure tail post center midline stab seat level Bend landing gear over drawing using large vise-grip pliers bench vise cutoff wheel also useful attempt rebend mistake just toss start over unit held #3 nylon clips Its wise predrill #3 before installing gear Attach bottom formers stringers Moisten top sheeting ammonia water pull down over firewall former side stringers taper rear filler strips around win dows taper up wing seat CyA 1/64 ply window frames stringer filler strips Sheet plastic windows will attached inside frames after fuselage has covered makes very neat easily installed window treatment Attach wing saddle fillers dowel five-minute epoxy Make sure dowel center runs level along both planes Joining wing fuselage Hold 128 Model Aviation WHEN USING THE CK-3 ONLY THE SIZE IS DIFFERENT win Engine Control Normal single throttle stick control over both engines Absolute engine synchronization advanced throttle settings via small adjustments RUDDER trim Realistic outboard engine advancement during turns taxi throttle settings via RUDDER control Completely realistic 1141 scale engine control during taxz synchronization flight finally available Works radio system digital CMOS No tuned circuits Installation instructions included -NOT simple coupling device Advancing engine does NOT retard other engine Order CK-3 just $4995 S&H C & K Ventures / 1807 Park / Laramie WY / 82070 Phone 307-745-7557 Order 24 hours day Please call write complete information add just device dream RC twin quest absolute realism onel 'grabber against ply brace clamps slide wing over front dowel Adjust center section wing parallel fuselage sides Use piece heavy string has pinned tail post check wing exactly right angles fuselage Measure common point both tips tail post adjusting until exactly Mark point grabber epoxy joiner Return wing seat recheck string Using drill size corresponding nylon bolt drill down through hardwood trail ing edge underlying hardwood block Screw bolt pre-tapped Sig block pull up against hardwood wing saddle hit CyA tapped hole bolt could used instead hardwood rear saddle would probably need thicker stock Initially tried Cals rubberband wing hold-on technique unable keep wing sliding rear Perhaps single dowel running forward have grabber dowel would work Empennage original Sportwagon used symmetrical stab section con structing joining fuselage used flat-bottom section sake simplicity also chose flat fin-rudder sembly airfoil Make laminated outlines moisten ing strips balsa ammonia water spreading aliphatic resin along seams laminations formed either over plans using pins along perime ter over foam board patterns horizontal stabilizer ribs con structed much same manner wing ribs Lay sheet center section down add spars ribs leading trailing edges Use straightedge mark cut %-in slots ribs two hinge line spars CyA place trim edges tips install Use sanding block final contouring hinge spars match ribs Add top center section sheeting al lowing fin slot After final sanding sep arate elevator portion cut slots hinges install perma nently Since elevator horn screw plate will under covering CyA Lite Ply base fin construction selfexplanatory Installing hardware decided verted mounting engine can also installed either upright sidewinder position Tank position will vary accordingly used small 2-oz Per fect Brand metal tank replumbed rear pickup top vent small Sullivan RC 130 Model Aviation Ultimate Model 310 courtesy Jim Ifatt/Seneca II courtesy C & K Ventures Last An Automatic Full-Feathering Adjustable Pitch Propeller An exclusive 4patented mechanism lets adjust pitch 8-40 optimum perfor mance blades automa tically feather motor stops reduce drag give much Recommended 72-80 motor gliders similar models wing AZV loads up 14 ozI sq ft 05 direct drive systems e shaft Stock No MAO8XXE $2495 Suggested Retail Available Through Leading Distributors WINDSOR PROPELLER CO 384 Tesconl Ct Santa Rosa CA 95401 tank will also fit throttle system used has throttle cable enclosed nylon rod battery should placed alongside tank far forward possible Du-Bro switch mount positioned scrap filler model used 14 x 14-in balsa pushrods EZ connectors servo arm other threaded wire clevis Nylon rods could also used rudder unit does exit top fuselage Sportwagon must balance shown plans came out needing ballast however other engine-ALSO AERONCA Li6B/CHAI84 IN VULT BT-13 VALIANT 84 IN SPAN and-equipment combinations may require adding ballast nose tail Continued page 132 Safe Flying No Accident 4 Fokker D-VII VK Model Aircraft PO Box 3007 Aurora IL 60505 312-357-1883 F iA SCAlE SPT SCALE AONCA L3/EIThlDEE 105 IN 2 CYClE 90-13 /1 4 CYClE 12-18 ROLIiD PLAN SETS------- $20 EACH FIBERGLASS CCWIS--------- 20 EACH ADD 120SHPDlGNYS ADD 8QTAX AERO PLANS N PARTS PO BOX 939 OIEAN NY 14760 716 372 / April 1988 131 GATOR RIC PRODUCTS An new Tiger Tail 120 four strokes piped 60 two strokes beautiful performer competition just showing offl balsa kit machined wood parts complete hardware package includes plug-in adjustable stab parts new wing mounts Wing Span -72 inWing Area- 860 sq Complete Delux KitSI 5995 TIGER TAIL 4S DELUX ALL BALSA KIT PLUG-IN ADJUSTABLE STAB KIT last can optimize stab incidence best flight charac teristics pair glass filled nylon adjusters Included provide micro screw adjustment smaller front tube Main tube aluminum matching phenolic socket TRANSMITTER CASE An inexpensive rugged molded case protect expensive transmitter both two stick single stick transmitters Brown leather grain aluminum trim locking clasp S 1895 WING TUBE & SOCKETS Aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wing structure Now size models 718 dia 25 895 t/diax25 995 diax3S1495 feather Ilte glass cloth 7 az/sq yd est weave Fastest Filling test Finished Weight Big 3 Sq Yard Pkg Detailed Instructions S895 ENGINE SLEEVE & BEARING PULLER Pull sight sleeves bearings easily out damage new 60s 17MM rear bearings Sleeve Puller5 795 Bearing Puller5 695 Bothpor51395 IVANS MAGIC GADGET protractor device used Ivan Kristensen accurately measure aileron elevator rudder throw Takes guess work out tool complete instrutnons log trimming out airplane quality book carrying caseS 795 NEWI WING MOUMING SET wing mounting system developed Ron Chidgey fast neat accurate stays tight Three nylon brackets screws machined wood wing blocks included S 595 READY TO FLY Call 1-800-45-TO FLY *LOW PRICES *EASY TO ASSEMBLE *NO BUILDING *NO PAINTING Piper Cherokee-40 Piper Gherokee-25 Fokker E111-40 Fancy Stick-25 Cessna 172-20 engine included Zh SUNSHINE HOBBY 17721 South Western Avenue Gardena California 90247 Check free movement controls set up throws Covering Following usual practice used transparent MonoKote Cal sug gested lightweight silk tissue however model certainly would delightful covered silk new iron-on fab rics transparent colors would also viable alternative sprayed Poly U trim over Mono Kote light rubbing 000-grade steel wool aids adhesion preference Sig Stripe Rite masking Brushing coat Sig clear Skybrite great preventing bleeders also used Stripe Rite pin stripes letters vinyl stick-on ones office supply store Banner wheels used prototype certainly add appearance points used samples new hinge material model recommend Klett Sig pinned hinges safeguard drill hole insert small piece toothpick securing CyA covered Sportwagon RC equipment place hadnt done way quite some time really simpler easier effort Cut window holes out shrunken MonoKote Cut window plastic out line over plans using Wilhold RC 56 ad hesive secure windows inside frame windscreen will need trimmed slightly good fit Position inside ply rear onto tiny cut outs MonoKote Stripe Rite tape used joint primed tank engine compart ments Skybrite painted Poly U Flying Remember used fly sport Free Flight dream day wed able make turn back land feet Want bet thought went around Cal Smiths mind 1948 Well golly 37 years later can know some purists detest contra diction term what have RC-assisted Free Flight incarna tion Cals sexy little Free Flight gets fly around merrilyand get watch giving occasional directional changes $12999 $9599 $11999 $6999 $9999 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 POXY PRIMER K&B SUPER POXY PAINT 168 MIXING CUPS ground Point nose wind advance power up away goes radio may needed slight course corrections might change elevator bit adjust rate climb keep soaring too high flies adjust chugging around looking pretty re alistic air isnt what youre after use Sportwagon practice maneuvers like stall turns yes lazy loops model has excellent versatility Cal Smith did homework well Men Cal Smiths extraordinary gifts energy dont come along very often Artist author model designer Cal sort Renaissance man model avia tion closing 1969 tribute Model Airplane News excerpted above Bill Win ter declared Forgotten Cal will never hope updating Sportwagon will help keep memory its designer alive Radio Technique/Myers Continued page 33 Tach 2 still works must good idea Thanks Bob Making use idea presented column back October 79 Accu-Tach 2 handbook suggests used evaluate RC system installation cut battery lead aileron adapter cable con nect cut ends milliamoneter like Accu Tach 2 Put adapter between flight pack switch harness Turn transmitter receiver observe current being drawn try control its extreme position trim available same extreme can stall servo position will see amps jump way up stay up warning reset throttle stop clear epoxy out binges make additional clear ance pushrods etc can put modi fied aileron extender cable between servo receiver evaluate particular servo instal lation problems may work system installation insertion resistance Accu Tach 2 oscillator strobes display may drive system instability happens youll have make measure ment analog VOM kind pointer using 500 mA range 132 Model Aviation unuu ruriurmance System TOP PERFORMANCE K&B ENGINES AkplaneMauine K&B FUELS168 GLOW PLUGS 9 Blends4 Choices See Dealer Order Direct Inciude S2 Per Item UPS GATOR RIC PRODUCTS 3713 Pompano Dr acola FL 32514 l 476-8639