NO OCR TEXT NO OCR TEXT aircraft coached another Jim decided build own Laser took air 1978 very little differ ence two aircraft Jims has shorter land ing gear slightly different cowl different paint scheme both planes basically metallic blue light yellow trim trim stars Jims different Leos Both Lasers will represent United States World Championships 1982 Europe Leo took another first Unlimited Jim came fourth National Aerobatic Champion ships Sherman TX October last year Henry Haigh flying modified Stehens called Super Star much same Lasers will also World Champs runner-up Leo Nationals Permit take short look back some what prophetic statement made Don Berliner 1973 article aerobatic airplanes talking about Stephens Akro days something going come alongto knock Pitts off its lofty perch day upon us would appear three out top five Nats flying versions original Stephens So much has written about exploits Leo Laser couldnt add anything new substance However Ihadthe pleasure ofmeet ing Leo Jim during 1981 National Cham pionships Sherman found out both fly RC During low-ceiling weather full-size planes grounded both flew model taken modi fied Stephens smoker kicks Super Akro ChipsJune 1981 MA dont know ever plan entering competition RC keep eye model few years back mulling over ~ouu viuw urn Ln uri wr tail feathers045 music wire Landing gear attachment single tapped hole middle holds terminating #26 solder lugs held 2-56 bolts fairing block Note slight toe-in wheels Lots plumbing needed engine companment Tur TIIIIflyVflflW wing tip tne guiae aio piioi perlumlirig preurnalun both fuel smoker tanks plus feeding engine smoker aerobatics maneuvers Note rib stitching ailerons mass balance 24 Model Aviation underside wing center section showing eron servo installed hooked up Attention detail pays off Just width enough four-across servos Pushrods cable type Receiver batteries need well padded MY WI1ILLJjINb V ANUIM V lE-C tLII j IVjY I-tlNLr/ IILL Ht IPLIW BACK AFThP I6YRS AIRR71Y TO SOLO THE 15a-WTEP AAHLLBET HETALbDTI-E ME RIGHTOUTOF OF FLOAT r TOGLIAR - NE SWTF R GRT DOWNTO THE COCKP T I-fE FLYING NI 4k HEASNT r THE CUBE-f THEGROI*JD DDrYLP NEDDP DO / JULY22 2j 14HOURSYOU ~7I/\1/Ax HAVE rwOArn-fougAgjo 1-4 D BALSA FIN AND RUDDER 1/2 BALSA TJRTLE DEC TO FIN POST1/4 50 FIN POST iili / 3/32 WIRE INTO ________3/16 TUBING FOR ______________________________ELEVATOR TIE 3/32 SHEET PILOT DECK /2 BALSA COWL DECK I/B PLY AlL SERVO MOUNT 4-40 SCREWS HOLD REMOVE-ABLE COWL/8 PLYWCOD RERJFTSF FRONT AND BACK AT CENTER SECTION Fl INCUT F7 7 1/4 HARD BALSA STABILIZER AND ELEVAlOR / 3/Bx 11/2 T EDGE STOCK I/S OOfl PLATE MOUNTS AILERON BELLCRANK I/Bx 3/8 TEIX SPAR F2 I/4PLYVIUOD I- AWMINUM MOUNT F 1 1/8 LrTI PLY BACKS UP RING SiDE SHEET SPLICE 1/2 BALSA BC7IrON 3/4 BALSA SLOCK RING 7IA FOR NYLON SGREVVS 1/2 BLOCKSFP 1I/8PLYWCOD LG FILL 1/16 SHEET WEBS SIG 2 18 AWM BLANK 1 BLOCK PANTS TOP 4-40 FH SCREWS INTO TNUTS IN 1/4 PLY3/16 BALSA OUTBOARD LG MOUNT I/B Ply WCOD INBOARD WALLS ---- 7 R FROM I/4TO ZERO T-NUTS FOR SCREWS BALSA WING TIP DOUBLED I/B BALSA LEADING EDGE BUTT JOINTS OF 3/32 BALSA SKIN AILERON BEARING L4 WHEEL ON 1/16 MUSIC WIRE /850 STRINGERS 2 EACH SIDE 3/32 BOTTOM SHEET CROSS GRAIN ON 3/1650 LONGEFUNS I/B SHEET BALSA SIDES LOWER TD IS UPPER SIDES I/8X 3/B BOTTOM STRINGERS TAPER TO REAR I/B X 1/4 HARD BALSA TOP-BOTTOM SPAR CAPS 3/32BALSA RIBS I/B MED HARD SPAR HALF NOTCH OVERALLRIBS what build next decision made de velop aerobatic model RCnot FAI style flying aerobatic ship would per form like its full-size counterparts should able Aresti-type flying have smoker forvisual effects doing air-show-type flyingon weekends Super Akro Chips born After caine called Dusty little larger Chips some slight changes force arrangement Inevitably led best aerobatic machine flying today 1980 World Champion Laser cant improve something close perfection already wrote Bob Morrison Repla-Tech purchased book aerobatic airplanes RS-5000 set color pictures taken Laser World Champs Ceske Budejovice Czechoslovakia 1978 mate rial used basis forthe model ofthe Laser presented planning entering model Sport Scale competition just like build fly Scale models fun weekends suggest obtain mate rials Repla-Tech 48500 McKenzie Hwy Vida OR 97488 pics three-views used presentation book model Sport Scale contests models first contest Houston TX Manned Spacecraft Center RC Club Scale Rally October 31 November 1 1981 frontof some very strict judges Laser took first place nosing Out some fine Scale models soit obviously has po tentialtobe awinnerin competitions Ontheother hand build fly just enjoyment will find construction model un complicated average kit sport flying winter day home town Victoria TX 450 sunny light variable winds model first took air arrived field about 815 am unloaded model gear About 10 minutes later good buddy photographer fellow modeler Leon Folse arrived equipment took about 30 minutes get engine ad justed running just right no problem smoker cowl screwed both tanks fuel smoker topped off fired up taxied out lined up Pushed throttle against firewall fed littie right rudder about 100 ft off itself Made shallow right climbing turn No trim needed straight flight back Next made 1800 turn tried roll little slow getting around Made turn back kicked smoker did inside loop tracked correction Chopped smoker made turn flipped smoker again did Cuban 8 no wind smoke hanging good grinning 26 Model Aviation wing panels being assembled rear top sneeting gieo pinned Note tiP Ji95 wie-in snim under center section tapered blocks positioned midway half TSF 8SF B 02 TEUTOPLT*40410100 00 TOI sF-Fl F5A 4-0100p VS/Cr Fl1000006 ES0000F0*0F0IiI Fl4050*FTS00 78SF500 TTOLOTC0000S 1640400-4ASFR 2OO IC 00000 2048 03003 02 Coso3000030CAW.0kT000 4 00T 004004 snap thrill time Ah joy second flight model did Lomcevak smoker going quite sight did inverted flight fullpower hammerhead four inside consecutive snaps full power outside snap reverse knifeedge vertical climbing rollall smoker going Two flights put morning must say real joy fly smoker gives added dimension tried tail slide entered beautifully lack finesse sticks did allow complete maneu ver Im gonna practice 40 moves plane just about scale speed Vertical maneuvers good feel no need larger engine thats thing should enough room up front fit Study pians reading structions should have problem building off-the-shelf model supplies Construction Select balsa carefully model will turn out rightweightforgood aerobatics Heres trick thats useful models check sheets balsa will find will balance heavy end good rule thumb littie catch saying re member isfrontand center Always puttheheavy ear ear Went straight Out cut off landing no problem end toward front fuselage and/or smoker made turn dove little started aileron links put next hole center wing smoke did knife-edge across field Ive horn little throw tanks never model fly well test flight filled another flight Engine running pushed wing has built order complete After knife-edge turned downwind stick forward K&B 40 started sing- fuselage would good place start throttle eased back Made turn ing As accelerated smoker kicked construction parts full-size difinal settled near-perfect landing rolled about 50 feet moresmoke pouring out mensions can taken directly plans could have left wheel pants takeoff runway pulled up 450 did inside number ways make ribs 1 w STASILIZELEVATOR LB SEOCO1AABLBOVW _________________w __Lw LEFT PANEL -J 0 -J ci VPSAVONALSAz IIZIP__a w ____-N 0CO -J LA 0 QY ______ ___ __CZiZIZiiz /PABOULASER ZOO OARER November 1982 27 construction has b reuy ror puooing riniuncanopy maseu protection built competition get scale documentation Repla-Tech International make tracings ribs 2 use carbon paper over balsa direct transfer 3 use root tip ribs 10 blanks balsa stacked carving latter method put tip rib outside end stack root rib between first second pieces use Y16 ply patterns root tip ribs carving way spar pieces cut same piece straight-grained balsa ensure uniformity Pin piece hard alsa over plans shown spar cap Glue spar rear edge slots up keeping 900 workbench Check fit rib trim necessary Pin over plans shown 6 square jig straight piece inside piece leading edge Check-fit rib again OK glue place pin ning securely jig Cut sheet Y x 3 x 31 medium C-grain balsa half along length trailing edge sheets Glue piece 31 balsa edge of sheets 900 angle Note side view fuselage drawing shows root rib also rib *8 wing plan Glue trailing edge sheet rear rib firmly butting firmly against Check-fit piece hard alsa top spar cap has fit flush ribs Glue place fitted Lay piece medium A-grain Y32 sheet balsa over ribs front spar Sand angle edge fits -in leading edge piece Mark excess over rear edge spar trim off Glue pin sheet place making sure ribs still pinned down firmly 3/16-in jig use slower drying cabinet-type glue over ribs model-type cement along leading edge dope-type finish employed model 28 Model Aviation lIe UdbiL iueiaye P preuy weii uriuerway nere dOle /8 sneet ror pushrod exit Wing behind still needs center sheeting DOLLOITI stringer smuer tdflN Vs r ilfeWdil 0110 74lll 111011 have glued place Note T-pins easy-on-finger pushing Mere inc anoing gear ueing ilUCO 10-YIP ply i lie IUCI narrnaireauy rids installed has engine/mount fitting 115 pic snuws ill pora fit 5LCP5 rl 00110 lI1 Lilt d 0111 5CISLIUIi LP polyethylene sheet will separate wing fuselage Shes really beginning take shape now major components place Cockpit inside carved /s canopy Note shape being carved rear cockpit Fuselage side piece TSF above wing has rough-carved Cutthe aileron crank plate Ply mount crank Cut fairleads pushrod 1/16 ply pushrods made /16-in copper-coated weldingrodit doesnt rust solders quite well bends easily made Make bend aileron crank slip crank slide through holes ribs slipping fairleads go glue aileron crank plate ot cutouts ribs 6 & 7 Cut glue /32 x strips ribs Dont sheet cen ter section time glue has driedon panels unpin workbench use inside flush door assemble panels full wing doors flat straight pins push easily Draw straight line 6 ft long about 6 edge long side Draw line 900 6-ft line its center Draw two lines 900 long line spaced 29 center line pin tip jigs lines Place scrap piece /32 sheet center line crossed long line Make sure lines jigs match long center line builds proper tip washout wing Pin panels down center section lining up rear edge spar over long line mark tip jig Place 9/16-in shim under trailing edge center section pin down About halfway out panel trailing edge shim assure straight trailing edge top sheeting glued Note pic tures wing being assembled Epoxy ply joiners spar ply piece RB trailing edge Choose matching sheets /32 balsa top sheeting orderto have bal anced wing keep having add lot weight tip Fit trim top sheeting ac cording drawing right panel very careful gluing top sheeting wing just about impossible twist untwist once sheeting place Dont sheet center section over leading edge yet sheeting glue has thoroughly dried remove wing board turn over pin down after removing jigs board Epoxy ply IA ribs inside #1 ribs flush bottom curve Sheet bottom center section behind spar Glue i/ balsa webs between ribs leading edge trailing edge sheet Turn wing over Epoxy plate place over ribs 1 Sand ling edge flush top sheeting Pin panel down bench along trailing edge over wax paper poly sheet Take trailing edge stock check-fit -in trailing edge Sand needed tight fit cut proper angle center sec tion glue pin wing Repeat pro cedure other panel Using long straight edge trim trailing edge stock shown plans Sand trailing edge makes smooth transition wing sheeting Layout aile rons ball-point pen cut away Sand angle leading edge ailerons shown rib #8 wing drawing Sand -in leading edge piece flush sheeting Cut piece -in sheet little wider leading edge glue wing complete i/4.in.thick leading edge method laminating leading edge has three positive results stronger one-piece leading edge less susceptible warping easier sand proper shape due glue joint acting guide Glue t tips dont glue portion makes up aileron mass balance Sand tips shape around tip rib cut off aileron mass balance bal ance glued pinned toothpicks aileron Fuselage have access x 48 sheets balsa makes job fuselage side fabrica tion little easier glue two sheets x 36 together form six-inch sheets three times sidejointto made follows Cut two 6 x 8 pieces ofthe sheets Make dovetail joint end x 36 sheets shown side view fuselage plans make matching joint two 6 x 8 pieces Glue together basic sides Lay out thrust line sheet ball point pen use reference point fully laying out side Basically straight lines Refer isometric sketch ar rows side view layout made layout completed cut side out use pattern make another Cut doublers t glue sides Glue /i6 sq longerons side cut cabin section sides away set aside time being Pin sides over top view rear landing gear plate tail post Slide former down its place pin Use 900 triangle make sure sides square work surface cyanoacrylate glues come handy right After formers glued place top onerons glued cut outs Pull top -in sides Thin 1/54 ply pieces FC RC glued epoxy form cowlA good sanding job will givethis kind appearance nose blockand shape Two layers FC appliedply cowl sides fair nicely cowling top November 198229 Ille V4Ifl tranyuar UUW UULIFIU pIVtVb Ildv U~II jiuu havethe 1/ x 1/4 rear strips Note maple blocks nylon wing bolts Ply cowl formers Cl C2 glued place rear 1/ax 1/4 strip sanded taper vent hole cut engine bay forward Cl stabilizer mounts right behind former F-7 glue flush former angle Glue t filler pieces place shown side top views fuselage rear Install tubing Sullivan cable pushrod GRC-S using sandpaper wrapped around -in dowel forthe hole inthe balsa sheet exit point Cut turtledeck sides TD including slot stabilizer medium light a Unpin fuselage plans Cut BSF fuselage side fairings a glue place Gluethe tringer BSF tothetail post along top edge fuselage side Glue turtledeck sides place clamping clothespin rear bring sides together over tail post Glue /32 balsa bottom sheeting place dry sand flush sides Mark cen ter line bottom sheeting behind LGP tail postalso two lines -in side extending LGP 3 behind F5 Glue s stringers place lines sand center taper 3 hind F-S tail post Check-fit /i ply LGP Trim doublers needed plate fits flush sides Epoxy place Lay out firewall center thrust lines Place engine mount overthese andlayoutthe bolt holes going use solid bolt method mounting drill holes put flat washer bolt push through firewall holes rear Cut three piece 040 music wire about inch long making slight bend middle solder head slots Install engine mount tighten nuts mount snug against firewall Smear 5mm epoxy liberally over bolt heads washers wire method has worked well models has advantage com pletely fuel-proofing engine compartment rest fuselage epoxying done later Glue firewall place epoxy Glue /i ply tank floor place between firewall F-3 Assemble SS-8 fuel tank RST-6 smoker tank leave tubing long enough pass firewall about inch extending engine compartment use three-tube system tanks pluggingthe fill tube after fill ing leaving vent open facingthe prop blast slight pressure tank has always given good engine runs attitude smoker tank tubing tee made stalled pressure tubing behind valve tube run front cowl used fill smoker tank valve closed keep flooding crankcase smoke oil line plugged along vent line after tank filled Plug -in plastic caps come tubing purchased rolls may able get heating plumbing air-conditioning dealer Install throttle pushrod smoker valve pushrod tubing time using cabletype pushrods Glue -in triangle pieces F-l F-3 Cut slot right fuselage side clear engine cylinder install engine Pack foam rubber around tanks glue -in top bottom forward blocks place Cut landing gear Sig 2 x 18 x /32 aluminum landing gear blank Drill axle mounting holes bend according pat tern fairing block covers gear held 4-40 bolt tapped cen ter landing gear Place gear over LGP square up Mark mounting holes drill through LGP install blind nuts lockwith dab epoxy Glue FP- 1 FP-2 ply pieces place Glue rear wing holddown plate re cesses doublers D-2 Cut aple blocks size epoxy place shown top side views Sand wing center section leading trailing edges until good fit obtained fuselage wing saddle Glue ply piece WP wing trailing edge Center wing saddle pin down Measure tail post tip shift wing until square fuselage Drill mounting holes down through wing maple blocks Remove wing tap blocks -20 Glue bottom front center section sheeting wing Run -in drill through ply plate bottom sheeting Glue top center section sheeting wing runthe -indrillthroughthis sheetfromthebot tom up Bolt wing place fuselage Lay some poly Saran Wrap over wing pin formers F3A F5A place Glue triangle top fuselage side pieces Continued page 113 30 Model Aviation Cheek cowl bumps nave nssea ana sanaea Nose snape aria position main cowl Author works foam avoid dings nemuvanie SeUtluri 01 LUWI lidS UCil LUL away ailuilly ya lialil blocks fitted bottom stringers glued sanded OOZ H35V1 LASER t 500 orderfull-size plans Brad Shepherds Laser 200from MA will begiven free set water-transfer decals shown decal has all-yellow lettering proper size forthe model reproduced smaller magazine black background contrast What doing winter prospect long cold winter has got down let OrLine R/C kit take chill off OrLines classic World War biplanes favorite winter building project novice expert alike new Y4 scale Fairchild 22 sure provide plenty excitement its gr8ceful lines begin take shape workbench can bring back romance Immelmanns dogfights winter long two airplanes will never go out style Sopwith Pup Fokker DVII something winter Warm up OrLine Fairchild 22 Sopwith Pup Fokker DVII Wing span 98 Wing span 67/2 span 72 Wing area 1617 sq inWing area 1586 sq inWing area 1480 sq Power 2 cu Quadra r 60 90 r 60 90 $18950 $11950 $11950 ci Wi ke Cr OrLine Radio Controlled Aircraft Mfrs ox 12501 Salem Oregon 97309 phone 503 362-1606 ever saved over three dozen Joe Ott kits kits included mahogany card board sheet parts WW II shortages bass wood strips tissue glue kits may have dated 1940-1 944 built sold several Americas Hobby Center Still have eight hand Wild cat Mustang Spitfire Brewster Dauntless Stuka etc boxes area bit tattered cant swear glue good Super Jet old-timer fans inter ested would part couple would happy donate couple AMA Museum heavens sakeguys dont write ol Bill Keiths address Box 135 Division St RD No 2 Galway NY 12074 doubt hell able answer everyone wheres sporting blood Correction recent column spoke flying Cessna 120 flaps own ers pilots chide us politely 140 Both basically similar al though electrics other stuff improved 140 flaps added remember having two bad mags 120 cross-country buy elec tric bit confused numbers having also flown four-place 170which flies bet ter its trike descendantswhich assumed 140 Memory plays tricks also slight time no takeoffs land ings both immortal Airmaster prewar vintage 195 impressive hunk machinery AU friendly critics agree flaps 140 did next nothing Bob Benjamins search authentic Aeronca K plans Ive swamped ad vicedo know Bob Lopshire Bob Karlsson has local use real plane nearby too Karlsson noted Scale man meet him contest might beg him bended knees Bill Winter 4426 Altura t Fairfax VA 22030 Laser Model/Shepherd Continued page 30 shown side view Pin top sides place formers F3A F5A Slip former F-4 place eyeball top see square straight glue sides formers Glue /32 sheet F-4 forward cockpit floor Glue Vs x longerons F-4 F-S Glue F5B place Glue TSF side fairings place Glue -in side sheets F-4 F5A Remove cabin section glue -in dou blers inside side sheets between F-4 F5A op longerons Glue -in sheetovertheturtledeck7/g-in behindformerF-5 Glue tab -in top sheet 2-in forward block over fuel tank Glue -in sheet over cabin section Mark center forward rear -in blocks 5bin section drill us-in holes marks dowels Cut dowels length Hot Stuff top blocks Place cabin section back wing Pin down drill holes 4-40 FR bolts through middle dowels Remove cabin section install 4-40 blind nuts under ply tabs Taper top holes dowels screw cabin section Cut former F-i Ply Mark center Continued page 116 II ~R/C GOODIES P 0 BOX 192 NUYS CA91408 AIR213 764-1490FO 110 CAPITAL MODELS READY-TO-FLY 40 61 1Reg $15995SPAN SPECIAL $13995I $65OShipI Fully Built & Painted Controls Fuel Tank LG & Wheels installed Needs Ionly Engine Radio installationI 4 4Ce Reg $6950 SPECIAL $4995 POWER PACER R/C Battery Tester Charges & Cycles Tx & Rx batteries Locates bad cells & provides batt capacity readings cowTy TRAINER CRAFTAIR I57 ISPAN SHIP $650 Reg $4995 SPEC $3247 Kit available flatbottom semmsym Imetrical wing 2 4 Ch 19 40 Engine Calif add Sales Tax No CODs Brochure 60m US $170 Foreign 4 1/2% Surcharge VISA Visa Master Card November 1982 113 cam erty 25 cuin Engine wei9ht 4 lb 6 oz So lid state ignition Roller bearing flywheel Ball bearing rear Hemi-head chamber Schneurle ported 2 pc con rodbearings Chrome plated cylinder Magnesium case Balanced crank Pyramid reed intake Built-in choke Hem ht 725 $27900 retail Wi Ith Shaft center widest point 313 Total Width 525 Mounting plate prop 60 See local hobby shop Hell order stock CONTEMPO HOBBY PRODUCTS 11611 CANTARA ST H HOLLYWOOD CA 91605 division Con tempo Enterprises lines on front blocks Line up F-i glue place Cut canopy Sig 16 universal stock canopy Place canopy posi tion cabin section mark around top -in sheet Cut female pattern F-4 shown plans use shape turtledeck directly behind canopy Roughly cutout cockpit -in top sheet Shape theturtledeckfirstwith aknife andthenwith 100grit paper block Now place canopy cabin carve sand until have good fit Trim Out cockpit until about -in around inside canopy Remove cabin section unbolt wing bolt cabin section back Glue ertical strip front edge BSF Refer side view measure cowl outline mark fuselage sides out lines Cut glue -in triangle stock inside lines wide side glued fuse lage Note cross sections F-2 F-3 Cut C-i C-2 pieces /16 ply glue place Cut side away F-I C-l air venting taper trip Fair -in triangle formers Note bottom cowl section F-3 Cut four cowl pieces FC As ply section cowl doubled Check-fit cowl pinning place over F-i halfway over C-2 totally covering -in triangle outline Trim necessary good snug fit Epoxy fuselage sides inside cowl fuel-proof Epoxy inside cowl FC put place pin around Dont put both C-is engine side yet will glued inside cowl after cut off Cut two RC pieces /64 ply Check-fit trim needed Epoxy inside glue place over C-2 -in trian gle vertical poxy inside other FC pieces put overthe FC pieces already glued fuselage Use rubberbands around fuselage help hold snug existing cowl pin around edges cowl has dried sand FC pieces square F-i Rough-cut -in nose block glue F-i Using 100-grit paper block carefully sand top bottom blocks nose shape fairing smoothly ply cowl Take one-inch block little larger cowl bump cut side angle see Step i fuselage drawing cut outline rough shape Step 2 Using piece 80-grit paper wrapped around 4-oz dope bottle similarsized cylinder carefully sand inside con tinue trial-fitting ply cowl Step 3 good fit obtained cut sand outside rough shape Step 4 glue position per side view fuselage Sand bumps until fair smoothly cowling Any imper Tail surfaces Cut -in slot turtledeck top block forward fin goes using straightedge line up fuselage center line Bolt wing fit stab slot turtledeck sides Line up stab parallel wing rearview square fuselage top view Glue stab place glue finusing 900 angles made scrap balsa keep fin square stab wing drying elevator connecting bar made s tubing 332-in music wire Solder music wire holes tubing Recess elevators tubing goes Pin eleva tors down workbench proper distance apart butting against straightedge Fit bar elevators mark places music wire enters elevator Drill holes elevators pin back down making sure Epoxy bar place always cut slots fit hinges surfaces before finishing put model can done now hinges will glued after model completely finished Detailing Williams Bros 2-in sport pilot used few modifications try make look like Leo Loudenslager point nose sanded off slightly talc dope mixed stiff putty modify hair mixture will soften plastic careful takes about two days harden again globbed mixture head using some photos Leo guide dry coping saw blade raked across putty simulate hair painted hair yellow Pactra Namel followed mixture flat brown yellow lighten brown After dry saw blade used againto sim ulate strands hair takes little fiddlin results pretty good shirt painted flat red Leo saw pilot figure Sher man laughed Jim Roberts said looked just like himso guess its close enough Sport Scale inside cockpit sanded smooth /32 sheet instrument panel glued place cockpit painted Glue block balsa bottom pilot figure trim shape pilot Place pilot cockpit trim bottom block until head just clears canopy Paint block red match pilots shirt glue Glue canopy being careful smear glue Mask off can opy keep clean finishing model 116 Model Aviation fections bumps can smoothed putty before covering finishing Using Zona Saw cut cowl cabin section separation remove cabin Mark off portion front cowl re movable over engine Use Zona Saw back removed cut portion away Glue Vs ply hold-down tabs place Drill -in holes cowling dowels glue dowels Hot Stuff Drill through dowels ply tabs mount blind nuts under tabs Glue other C- 1 inside cowl flush rear edge shown top view Make smoker valve shown draw ing buy commercial valve Mount ply wood epoxy itto inside cowl per top view combination smoke chamber tail pipe muffler fabricatedfrom light steel tub ing -in soft brass tubing 12-gauge sheet metal flange stuffed steel wool cap ped 26-gauge sheet holes drilled order have enough heat vaporize fluid its necessary insulate whole cham ber six seven wrapped thicknesses light fiberglass cloth Make covers insulation tin can Bend sheetmetal overthe fiber glass solder edges holding place twisted wire until solder hardens genera tor works very nicely using Texaco almag fluid smoke dense has good hang time Cover engine mount bolts short pieces fuel tubing brush slow-driving epoxy inside engine compartment fuelproof model presented has doped finish Silk used bottom half fuselage wing remainder model covered lightweight silkspan Aerogloss metallic blue very close color Leos Laser Yellow trim used adding white until correct shade attained match decals best way found match decal color cut out 716-in-wide LASER 200 de cal attach itto blue-doped wheel pants proper placethen kept experimenting yellow until matched decal color dab blue may have added yellow really good match star sizes shown fuselage draw ing fuselage stars masked off doped white pattern ofthe wing stars made Y16 ply stars cut Sig white decal sheet decals come plans given two coats clear polyurethane after have dried thoroughly tail feather bracing made 045 music wire #26 solder lugs soldered ends held 2-56 bolts simulated rib stitching fin rudder stab elevators ailerons made Manila paper file folder material pizza cutter rolled over about 3/is-in intervals toindentitthenitiscutinto5/32-in strips doped surfaces effect good 15 feet Most folks have own favorite way stalling radio gear Mine shown plans ship balanced CG shown add ing weight build bird believe will give hours truly enjoyable aerobatic flyingIf go full route detailing will com petitive other Sport Scale models vari ous meets See Nats General Con fin ued page 33 competition some events such RC Pattern running five consecutive days World Championships involve much Natsin number people days hours Consider Nats competition begins November 1982 117 4 ft MODEL ENGINEHEAT SHRINKWING SADDLE FUEL LINETUBINGFOAM TAPE 1/16 dia Special formulated high grade Ideal sleeving plugs conblack neoprene tubing glow nectors Shrinkable using gas oil diesel fuels soldering iron cigarette lighter Part No 200-249$149Part No200-250$ 98 Kraft Systems 450 W California Ave Vista CA 920830 Division Carlisle Corporation Pressure sensitive adhesive side 1/16 x 4 Easy apply Makes neat looking wing fuselage fit Can also used seal access hatches cowlings etc Part No 200-251$159 TAPER ACETM Rib Profiler makes tapered eliptical wing design easy Works faster computer Adjusts locks size rib instantly Curve plates provided draw 3 different full symmetrical 3 different semi-symmetrical airfoils Flat bottom airfoils can also drawn Send check M 0 $2495 Jim Denaro Model Products 543 Bedford Street Concord MA 01742
Edition: Model Aviation - 1982/11
Page Numbers: 22, 23, 24, 25, 26, 27, 28, 29, 30, 113, 116, 117
NO OCR TEXT NO OCR TEXT aircraft coached another Jim decided build own Laser took air 1978 very little differ ence two aircraft Jims has shorter land ing gear slightly different cowl different paint scheme both planes basically metallic blue light yellow trim trim stars Jims different Leos Both Lasers will represent United States World Championships 1982 Europe Leo took another first Unlimited Jim came fourth National Aerobatic Champion ships Sherman TX October last year Henry Haigh flying modified Stehens called Super Star much same Lasers will also World Champs runner-up Leo Nationals Permit take short look back some what prophetic statement made Don Berliner 1973 article aerobatic airplanes talking about Stephens Akro days something going come alongto knock Pitts off its lofty perch day upon us would appear three out top five Nats flying versions original Stephens So much has written about exploits Leo Laser couldnt add anything new substance However Ihadthe pleasure ofmeet ing Leo Jim during 1981 National Cham pionships Sherman found out both fly RC During low-ceiling weather full-size planes grounded both flew model taken modi fied Stephens smoker kicks Super Akro ChipsJune 1981 MA dont know ever plan entering competition RC keep eye model few years back mulling over ~ouu viuw urn Ln uri wr tail feathers045 music wire Landing gear attachment single tapped hole middle holds terminating #26 solder lugs held 2-56 bolts fairing block Note slight toe-in wheels Lots plumbing needed engine companment Tur TIIIIflyVflflW wing tip tne guiae aio piioi perlumlirig preurnalun both fuel smoker tanks plus feeding engine smoker aerobatics maneuvers Note rib stitching ailerons mass balance 24 Model Aviation underside wing center section showing eron servo installed hooked up Attention detail pays off Just width enough four-across servos Pushrods cable type Receiver batteries need well padded MY WI1ILLJjINb V ANUIM V lE-C tLII j IVjY I-tlNLr/ IILL Ht IPLIW BACK AFThP I6YRS AIRR71Y TO SOLO THE 15a-WTEP AAHLLBET HETALbDTI-E ME RIGHTOUTOF OF FLOAT r TOGLIAR - NE SWTF R GRT DOWNTO THE COCKP T I-fE FLYING NI 4k HEASNT r THE CUBE-f THEGROI*JD DDrYLP NEDDP DO / JULY22 2j 14HOURSYOU ~7I/\1/Ax HAVE rwOArn-fougAgjo 1-4 D BALSA FIN AND RUDDER 1/2 BALSA TJRTLE DEC TO FIN POST1/4 50 FIN POST iili / 3/32 WIRE INTO ________3/16 TUBING FOR ______________________________ELEVATOR TIE 3/32 SHEET PILOT DECK /2 BALSA COWL DECK I/B PLY AlL SERVO MOUNT 4-40 SCREWS HOLD REMOVE-ABLE COWL/8 PLYWCOD RERJFTSF FRONT AND BACK AT CENTER SECTION Fl INCUT F7 7 1/4 HARD BALSA STABILIZER AND ELEVAlOR / 3/Bx 11/2 T EDGE STOCK I/S OOfl PLATE MOUNTS AILERON BELLCRANK I/Bx 3/8 TEIX SPAR F2 I/4PLYVIUOD I- AWMINUM MOUNT F 1 1/8 LrTI PLY BACKS UP RING SiDE SHEET SPLICE 1/2 BALSA BC7IrON 3/4 BALSA SLOCK RING 7IA FOR NYLON SGREVVS 1/2 BLOCKSFP 1I/8PLYWCOD LG FILL 1/16 SHEET WEBS SIG 2 18 AWM BLANK 1 BLOCK PANTS TOP 4-40 FH SCREWS INTO TNUTS IN 1/4 PLY3/16 BALSA OUTBOARD LG MOUNT I/B Ply WCOD INBOARD WALLS ---- 7 R FROM I/4TO ZERO T-NUTS FOR SCREWS BALSA WING TIP DOUBLED I/B BALSA LEADING EDGE BUTT JOINTS OF 3/32 BALSA SKIN AILERON BEARING L4 WHEEL ON 1/16 MUSIC WIRE /850 STRINGERS 2 EACH SIDE 3/32 BOTTOM SHEET CROSS GRAIN ON 3/1650 LONGEFUNS I/B SHEET BALSA SIDES LOWER TD IS UPPER SIDES I/8X 3/B BOTTOM STRINGERS TAPER TO REAR I/B X 1/4 HARD BALSA TOP-BOTTOM SPAR CAPS 3/32BALSA RIBS I/B MED HARD SPAR HALF NOTCH OVERALLRIBS what build next decision made de velop aerobatic model RCnot FAI style flying aerobatic ship would per form like its full-size counterparts should able Aresti-type flying have smoker forvisual effects doing air-show-type flyingon weekends Super Akro Chips born After caine called Dusty little larger Chips some slight changes force arrangement Inevitably led best aerobatic machine flying today 1980 World Champion Laser cant improve something close perfection already wrote Bob Morrison Repla-Tech purchased book aerobatic airplanes RS-5000 set color pictures taken Laser World Champs Ceske Budejovice Czechoslovakia 1978 mate rial used basis forthe model ofthe Laser presented planning entering model Sport Scale competition just like build fly Scale models fun weekends suggest obtain mate rials Repla-Tech 48500 McKenzie Hwy Vida OR 97488 pics three-views used presentation book model Sport Scale contests models first contest Houston TX Manned Spacecraft Center RC Club Scale Rally October 31 November 1 1981 frontof some very strict judges Laser took first place nosing Out some fine Scale models soit obviously has po tentialtobe awinnerin competitions Ontheother hand build fly just enjoyment will find construction model un complicated average kit sport flying winter day home town Victoria TX 450 sunny light variable winds model first took air arrived field about 815 am unloaded model gear About 10 minutes later good buddy photographer fellow modeler Leon Folse arrived equipment took about 30 minutes get engine ad justed running just right no problem smoker cowl screwed both tanks fuel smoker topped off fired up taxied out lined up Pushed throttle against firewall fed littie right rudder about 100 ft off itself Made shallow right climbing turn No trim needed straight flight back Next made 1800 turn tried roll little slow getting around Made turn back kicked smoker did inside loop tracked correction Chopped smoker made turn flipped smoker again did Cuban 8 no wind smoke hanging good grinning 26 Model Aviation wing panels being assembled rear top sneeting gieo pinned Note tiP Ji95 wie-in snim under center section tapered blocks positioned midway half TSF 8SF B 02 TEUTOPLT*40410100 00 TOI sF-Fl F5A 4-0100p VS/Cr Fl1000006 ES0000F0*0F0IiI Fl4050*FTS00 78SF500 TTOLOTC0000S 1640400-4ASFR 2OO IC 00000 2048 03003 02 Coso3000030CAW.0kT000 4 00T 004004 snap thrill time Ah joy second flight model did Lomcevak smoker going quite sight did inverted flight fullpower hammerhead four inside consecutive snaps full power outside snap reverse knifeedge vertical climbing rollall smoker going Two flights put morning must say real joy fly smoker gives added dimension tried tail slide entered beautifully lack finesse sticks did allow complete maneu ver Im gonna practice 40 moves plane just about scale speed Vertical maneuvers good feel no need larger engine thats thing should enough room up front fit Study pians reading structions should have problem building off-the-shelf model supplies Construction Select balsa carefully model will turn out rightweightforgood aerobatics Heres trick thats useful models check sheets balsa will find will balance heavy end good rule thumb littie catch saying re member isfrontand center Always puttheheavy ear ear Went straight Out cut off landing no problem end toward front fuselage and/or smoker made turn dove little started aileron links put next hole center wing smoke did knife-edge across field Ive horn little throw tanks never model fly well test flight filled another flight Engine running pushed wing has built order complete After knife-edge turned downwind stick forward K&B 40 started sing- fuselage would good place start throttle eased back Made turn ing As accelerated smoker kicked construction parts full-size difinal settled near-perfect landing rolled about 50 feet moresmoke pouring out mensions can taken directly plans could have left wheel pants takeoff runway pulled up 450 did inside number ways make ribs 1 w STASILIZELEVATOR LB SEOCO1AABLBOVW _________________w __Lw LEFT PANEL -J 0 -J ci VPSAVONALSAz IIZIP__a w ____-N 0CO -J LA 0 QY ______ ___ __CZiZIZiiz /PABOULASER ZOO OARER November 1982 27 construction has b reuy ror puooing riniuncanopy maseu protection built competition get scale documentation Repla-Tech International make tracings ribs 2 use carbon paper over balsa direct transfer 3 use root tip ribs 10 blanks balsa stacked carving latter method put tip rib outside end stack root rib between first second pieces use Y16 ply patterns root tip ribs carving way spar pieces cut same piece straight-grained balsa ensure uniformity Pin piece hard alsa over plans shown spar cap Glue spar rear edge slots up keeping 900 workbench Check fit rib trim necessary Pin over plans shown 6 square jig straight piece inside piece leading edge Check-fit rib again OK glue place pin ning securely jig Cut sheet Y x 3 x 31 medium C-grain balsa half along length trailing edge sheets Glue piece 31 balsa edge of sheets 900 angle Note side view fuselage drawing shows root rib also rib *8 wing plan Glue trailing edge sheet rear rib firmly butting firmly against Check-fit piece hard alsa top spar cap has fit flush ribs Glue place fitted Lay piece medium A-grain Y32 sheet balsa over ribs front spar Sand angle edge fits -in leading edge piece Mark excess over rear edge spar trim off Glue pin sheet place making sure ribs still pinned down firmly 3/16-in jig use slower drying cabinet-type glue over ribs model-type cement along leading edge dope-type finish employed model 28 Model Aviation lIe UdbiL iueiaye P preuy weii uriuerway nere dOle /8 sneet ror pushrod exit Wing behind still needs center sheeting DOLLOITI stringer smuer tdflN Vs r ilfeWdil 0110 74lll 111011 have glued place Note T-pins easy-on-finger pushing Mere inc anoing gear ueing ilUCO 10-YIP ply i lie IUCI narrnaireauy rids installed has engine/mount fitting 115 pic snuws ill pora fit 5LCP5 rl 00110 lI1 Lilt d 0111 5CISLIUIi LP polyethylene sheet will separate wing fuselage Shes really beginning take shape now major components place Cockpit inside carved /s canopy Note shape being carved rear cockpit Fuselage side piece TSF above wing has rough-carved Cutthe aileron crank plate Ply mount crank Cut fairleads pushrod 1/16 ply pushrods made /16-in copper-coated weldingrodit doesnt rust solders quite well bends easily made Make bend aileron crank slip crank slide through holes ribs slipping fairleads go glue aileron crank plate ot cutouts ribs 6 & 7 Cut glue /32 x strips ribs Dont sheet cen ter section time glue has driedon panels unpin workbench use inside flush door assemble panels full wing doors flat straight pins push easily Draw straight line 6 ft long about 6 edge long side Draw line 900 6-ft line its center Draw two lines 900 long line spaced 29 center line pin tip jigs lines Place scrap piece /32 sheet center line crossed long line Make sure lines jigs match long center line builds proper tip washout wing Pin panels down center section lining up rear edge spar over long line mark tip jig Place 9/16-in shim under trailing edge center section pin down About halfway out panel trailing edge shim assure straight trailing edge top sheeting glued Note pic tures wing being assembled Epoxy ply joiners spar ply piece RB trailing edge Choose matching sheets /32 balsa top sheeting orderto have bal anced wing keep having add lot weight tip Fit trim top sheeting ac cording drawing right panel very careful gluing top sheeting wing just about impossible twist untwist once sheeting place Dont sheet center section over leading edge yet sheeting glue has thoroughly dried remove wing board turn over pin down after removing jigs board Epoxy ply IA ribs inside #1 ribs flush bottom curve Sheet bottom center section behind spar Glue i/ balsa webs between ribs leading edge trailing edge sheet Turn wing over Epoxy plate place over ribs 1 Sand ling edge flush top sheeting Pin panel down bench along trailing edge over wax paper poly sheet Take trailing edge stock check-fit -in trailing edge Sand needed tight fit cut proper angle center sec tion glue pin wing Repeat pro cedure other panel Using long straight edge trim trailing edge stock shown plans Sand trailing edge makes smooth transition wing sheeting Layout aile rons ball-point pen cut away Sand angle leading edge ailerons shown rib #8 wing drawing Sand -in leading edge piece flush sheeting Cut piece -in sheet little wider leading edge glue wing complete i/4.in.thick leading edge method laminating leading edge has three positive results stronger one-piece leading edge less susceptible warping easier sand proper shape due glue joint acting guide Glue t tips dont glue portion makes up aileron mass balance Sand tips shape around tip rib cut off aileron mass balance bal ance glued pinned toothpicks aileron Fuselage have access x 48 sheets balsa makes job fuselage side fabrica tion little easier glue two sheets x 36 together form six-inch sheets three times sidejointto made follows Cut two 6 x 8 pieces ofthe sheets Make dovetail joint end x 36 sheets shown side view fuselage plans make matching joint two 6 x 8 pieces Glue together basic sides Lay out thrust line sheet ball point pen use reference point fully laying out side Basically straight lines Refer isometric sketch ar rows side view layout made layout completed cut side out use pattern make another Cut doublers t glue sides Glue /i6 sq longerons side cut cabin section sides away set aside time being Pin sides over top view rear landing gear plate tail post Slide former down its place pin Use 900 triangle make sure sides square work surface cyanoacrylate glues come handy right After formers glued place top onerons glued cut outs Pull top -in sides Thin 1/54 ply pieces FC RC glued epoxy form cowlA good sanding job will givethis kind appearance nose blockand shape Two layers FC appliedply cowl sides fair nicely cowling top November 198229 Ille V4Ifl tranyuar UUW UULIFIU pIVtVb Ildv U~II jiuu havethe 1/ x 1/4 rear strips Note maple blocks nylon wing bolts Ply cowl formers Cl C2 glued place rear 1/ax 1/4 strip sanded taper vent hole cut engine bay forward Cl stabilizer mounts right behind former F-7 glue flush former angle Glue t filler pieces place shown side top views fuselage rear Install tubing Sullivan cable pushrod GRC-S using sandpaper wrapped around -in dowel forthe hole inthe balsa sheet exit point Cut turtledeck sides TD including slot stabilizer medium light a Unpin fuselage plans Cut BSF fuselage side fairings a glue place Gluethe tringer BSF tothetail post along top edge fuselage side Glue turtledeck sides place clamping clothespin rear bring sides together over tail post Glue /32 balsa bottom sheeting place dry sand flush sides Mark cen ter line bottom sheeting behind LGP tail postalso two lines -in side extending LGP 3 behind F5 Glue s stringers place lines sand center taper 3 hind F-S tail post Check-fit /i ply LGP Trim doublers needed plate fits flush sides Epoxy place Lay out firewall center thrust lines Place engine mount overthese andlayoutthe bolt holes going use solid bolt method mounting drill holes put flat washer bolt push through firewall holes rear Cut three piece 040 music wire about inch long making slight bend middle solder head slots Install engine mount tighten nuts mount snug against firewall Smear 5mm epoxy liberally over bolt heads washers wire method has worked well models has advantage com pletely fuel-proofing engine compartment rest fuselage epoxying done later Glue firewall place epoxy Glue /i ply tank floor place between firewall F-3 Assemble SS-8 fuel tank RST-6 smoker tank leave tubing long enough pass firewall about inch extending engine compartment use three-tube system tanks pluggingthe fill tube after fill ing leaving vent open facingthe prop blast slight pressure tank has always given good engine runs attitude smoker tank tubing tee made stalled pressure tubing behind valve tube run front cowl used fill smoker tank valve closed keep flooding crankcase smoke oil line plugged along vent line after tank filled Plug -in plastic caps come tubing purchased rolls may able get heating plumbing air-conditioning dealer Install throttle pushrod smoker valve pushrod tubing time using cabletype pushrods Glue -in triangle pieces F-l F-3 Cut slot right fuselage side clear engine cylinder install engine Pack foam rubber around tanks glue -in top bottom forward blocks place Cut landing gear Sig 2 x 18 x /32 aluminum landing gear blank Drill axle mounting holes bend according pat tern fairing block covers gear held 4-40 bolt tapped cen ter landing gear Place gear over LGP square up Mark mounting holes drill through LGP install blind nuts lockwith dab epoxy Glue FP- 1 FP-2 ply pieces place Glue rear wing holddown plate re cesses doublers D-2 Cut aple blocks size epoxy place shown top side views Sand wing center section leading trailing edges until good fit obtained fuselage wing saddle Glue ply piece WP wing trailing edge Center wing saddle pin down Measure tail post tip shift wing until square fuselage Drill mounting holes down through wing maple blocks Remove wing tap blocks -20 Glue bottom front center section sheeting wing Run -in drill through ply plate bottom sheeting Glue top center section sheeting wing runthe -indrillthroughthis sheetfromthebot tom up Bolt wing place fuselage Lay some poly Saran Wrap over wing pin formers F3A F5A place Glue triangle top fuselage side pieces Continued page 113 30 Model Aviation Cheek cowl bumps nave nssea ana sanaea Nose snape aria position main cowl Author works foam avoid dings nemuvanie SeUtluri 01 LUWI lidS UCil LUL away ailuilly ya lialil blocks fitted bottom stringers glued sanded OOZ H35V1 LASER t 500 orderfull-size plans Brad Shepherds Laser 200from MA will begiven free set water-transfer decals shown decal has all-yellow lettering proper size forthe model reproduced smaller magazine black background contrast What doing winter prospect long cold winter has got down let OrLine R/C kit take chill off OrLines classic World War biplanes favorite winter building project novice expert alike new Y4 scale Fairchild 22 sure provide plenty excitement its gr8ceful lines begin take shape workbench can bring back romance Immelmanns dogfights winter long two airplanes will never go out style Sopwith Pup Fokker DVII something winter Warm up OrLine Fairchild 22 Sopwith Pup Fokker DVII Wing span 98 Wing span 67/2 span 72 Wing area 1617 sq inWing area 1586 sq inWing area 1480 sq Power 2 cu Quadra r 60 90 r 60 90 $18950 $11950 $11950 ci Wi ke Cr OrLine Radio Controlled Aircraft Mfrs ox 12501 Salem Oregon 97309 phone 503 362-1606 ever saved over three dozen Joe Ott kits kits included mahogany card board sheet parts WW II shortages bass wood strips tissue glue kits may have dated 1940-1 944 built sold several Americas Hobby Center Still have eight hand Wild cat Mustang Spitfire Brewster Dauntless Stuka etc boxes area bit tattered cant swear glue good Super Jet old-timer fans inter ested would part couple would happy donate couple AMA Museum heavens sakeguys dont write ol Bill Keiths address Box 135 Division St RD No 2 Galway NY 12074 doubt hell able answer everyone wheres sporting blood Correction recent column spoke flying Cessna 120 flaps own ers pilots chide us politely 140 Both basically similar al though electrics other stuff improved 140 flaps added remember having two bad mags 120 cross-country buy elec tric bit confused numbers having also flown four-place 170which flies bet ter its trike descendantswhich assumed 140 Memory plays tricks also slight time no takeoffs land ings both immortal Airmaster prewar vintage 195 impressive hunk machinery AU friendly critics agree flaps 140 did next nothing Bob Benjamins search authentic Aeronca K plans Ive swamped ad vicedo know Bob Lopshire Bob Karlsson has local use real plane nearby too Karlsson noted Scale man meet him contest might beg him bended knees Bill Winter 4426 Altura t Fairfax VA 22030 Laser Model/Shepherd Continued page 30 shown side view Pin top sides place formers F3A F5A Slip former F-4 place eyeball top see square straight glue sides formers Glue /32 sheet F-4 forward cockpit floor Glue Vs x longerons F-4 F-S Glue F5B place Glue TSF side fairings place Glue -in side sheets F-4 F5A Remove cabin section glue -in dou blers inside side sheets between F-4 F5A op longerons Glue -in sheetovertheturtledeck7/g-in behindformerF-5 Glue tab -in top sheet 2-in forward block over fuel tank Glue -in sheet over cabin section Mark center forward rear -in blocks 5bin section drill us-in holes marks dowels Cut dowels length Hot Stuff top blocks Place cabin section back wing Pin down drill holes 4-40 FR bolts through middle dowels Remove cabin section install 4-40 blind nuts under ply tabs Taper top holes dowels screw cabin section Cut former F-i Ply Mark center Continued page 116 II ~R/C GOODIES P 0 BOX 192 NUYS CA91408 AIR213 764-1490FO 110 CAPITAL MODELS READY-TO-FLY 40 61 1Reg $15995SPAN SPECIAL $13995I $65OShipI Fully Built & Painted Controls Fuel Tank LG & Wheels installed Needs Ionly Engine Radio installationI 4 4Ce Reg $6950 SPECIAL $4995 POWER PACER R/C Battery Tester Charges & Cycles Tx & Rx batteries Locates bad cells & provides batt capacity readings cowTy TRAINER CRAFTAIR I57 ISPAN SHIP $650 Reg $4995 SPEC $3247 Kit available flatbottom semmsym Imetrical wing 2 4 Ch 19 40 Engine Calif add Sales Tax No CODs Brochure 60m US $170 Foreign 4 1/2% Surcharge VISA Visa Master Card November 1982 113 cam erty 25 cuin Engine wei9ht 4 lb 6 oz So lid state ignition Roller bearing flywheel Ball bearing rear Hemi-head chamber Schneurle ported 2 pc con rodbearings Chrome plated cylinder Magnesium case Balanced crank Pyramid reed intake Built-in choke Hem ht 725 $27900 retail Wi Ith Shaft center widest point 313 Total Width 525 Mounting plate prop 60 See local hobby shop Hell order stock CONTEMPO HOBBY PRODUCTS 11611 CANTARA ST H HOLLYWOOD CA 91605 division Con tempo Enterprises lines on front blocks Line up F-i glue place Cut canopy Sig 16 universal stock canopy Place canopy posi tion cabin section mark around top -in sheet Cut female pattern F-4 shown plans use shape turtledeck directly behind canopy Roughly cutout cockpit -in top sheet Shape theturtledeckfirstwith aknife andthenwith 100grit paper block Now place canopy cabin carve sand until have good fit Trim Out cockpit until about -in around inside canopy Remove cabin section unbolt wing bolt cabin section back Glue ertical strip front edge BSF Refer side view measure cowl outline mark fuselage sides out lines Cut glue -in triangle stock inside lines wide side glued fuse lage Note cross sections F-2 F-3 Cut C-i C-2 pieces /16 ply glue place Cut side away F-I C-l air venting taper trip Fair -in triangle formers Note bottom cowl section F-3 Cut four cowl pieces FC As ply section cowl doubled Check-fit cowl pinning place over F-i halfway over C-2 totally covering -in triangle outline Trim necessary good snug fit Epoxy fuselage sides inside cowl fuel-proof Epoxy inside cowl FC put place pin around Dont put both C-is engine side yet will glued inside cowl after cut off Cut two RC pieces /64 ply Check-fit trim needed Epoxy inside glue place over C-2 -in trian gle vertical poxy inside other FC pieces put overthe FC pieces already glued fuselage Use rubberbands around fuselage help hold snug existing cowl pin around edges cowl has dried sand FC pieces square F-i Rough-cut -in nose block glue F-i Using 100-grit paper block carefully sand top bottom blocks nose shape fairing smoothly ply cowl Take one-inch block little larger cowl bump cut side angle see Step i fuselage drawing cut outline rough shape Step 2 Using piece 80-grit paper wrapped around 4-oz dope bottle similarsized cylinder carefully sand inside con tinue trial-fitting ply cowl Step 3 good fit obtained cut sand outside rough shape Step 4 glue position per side view fuselage Sand bumps until fair smoothly cowling Any imper Tail surfaces Cut -in slot turtledeck top block forward fin goes using straightedge line up fuselage center line Bolt wing fit stab slot turtledeck sides Line up stab parallel wing rearview square fuselage top view Glue stab place glue finusing 900 angles made scrap balsa keep fin square stab wing drying elevator connecting bar made s tubing 332-in music wire Solder music wire holes tubing Recess elevators tubing goes Pin eleva tors down workbench proper distance apart butting against straightedge Fit bar elevators mark places music wire enters elevator Drill holes elevators pin back down making sure Epoxy bar place always cut slots fit hinges surfaces before finishing put model can done now hinges will glued after model completely finished Detailing Williams Bros 2-in sport pilot used few modifications try make look like Leo Loudenslager point nose sanded off slightly talc dope mixed stiff putty modify hair mixture will soften plastic careful takes about two days harden again globbed mixture head using some photos Leo guide dry coping saw blade raked across putty simulate hair painted hair yellow Pactra Namel followed mixture flat brown yellow lighten brown After dry saw blade used againto sim ulate strands hair takes little fiddlin results pretty good shirt painted flat red Leo saw pilot figure Sher man laughed Jim Roberts said looked just like himso guess its close enough Sport Scale inside cockpit sanded smooth /32 sheet instrument panel glued place cockpit painted Glue block balsa bottom pilot figure trim shape pilot Place pilot cockpit trim bottom block until head just clears canopy Paint block red match pilots shirt glue Glue canopy being careful smear glue Mask off can opy keep clean finishing model 116 Model Aviation fections bumps can smoothed putty before covering finishing Using Zona Saw cut cowl cabin section separation remove cabin Mark off portion front cowl re movable over engine Use Zona Saw back removed cut portion away Glue Vs ply hold-down tabs place Drill -in holes cowling dowels glue dowels Hot Stuff Drill through dowels ply tabs mount blind nuts under tabs Glue other C- 1 inside cowl flush rear edge shown top view Make smoker valve shown draw ing buy commercial valve Mount ply wood epoxy itto inside cowl per top view combination smoke chamber tail pipe muffler fabricatedfrom light steel tub ing -in soft brass tubing 12-gauge sheet metal flange stuffed steel wool cap ped 26-gauge sheet holes drilled order have enough heat vaporize fluid its necessary insulate whole cham ber six seven wrapped thicknesses light fiberglass cloth Make covers insulation tin can Bend sheetmetal overthe fiber glass solder edges holding place twisted wire until solder hardens genera tor works very nicely using Texaco almag fluid smoke dense has good hang time Cover engine mount bolts short pieces fuel tubing brush slow-driving epoxy inside engine compartment fuelproof model presented has doped finish Silk used bottom half fuselage wing remainder model covered lightweight silkspan Aerogloss metallic blue very close color Leos Laser Yellow trim used adding white until correct shade attained match decals best way found match decal color cut out 716-in-wide LASER 200 de cal attach itto blue-doped wheel pants proper placethen kept experimenting yellow until matched decal color dab blue may have added yellow really good match star sizes shown fuselage draw ing fuselage stars masked off doped white pattern ofthe wing stars made Y16 ply stars cut Sig white decal sheet decals come plans given two coats clear polyurethane after have dried thoroughly tail feather bracing made 045 music wire #26 solder lugs soldered ends held 2-56 bolts simulated rib stitching fin rudder stab elevators ailerons made Manila paper file folder material pizza cutter rolled over about 3/is-in intervals toindentitthenitiscutinto5/32-in strips doped surfaces effect good 15 feet Most folks have own favorite way stalling radio gear Mine shown plans ship balanced CG shown add ing weight build bird believe will give hours truly enjoyable aerobatic flyingIf go full route detailing will com petitive other Sport Scale models vari ous meets See Nats General Con fin ued page 33 competition some events such RC Pattern running five consecutive days World Championships involve much Natsin number people days hours Consider Nats competition begins November 1982 117 4 ft MODEL ENGINEHEAT SHRINKWING SADDLE FUEL LINETUBINGFOAM TAPE 1/16 dia Special formulated high grade Ideal sleeving plugs conblack neoprene tubing glow nectors Shrinkable using gas oil diesel fuels soldering iron cigarette lighter Part No 200-249$149Part No200-250$ 98 Kraft Systems 450 W California Ave Vista CA 920830 Division Carlisle Corporation Pressure sensitive adhesive side 1/16 x 4 Easy apply Makes neat looking wing fuselage fit Can also used seal access hatches cowlings etc Part No 200-251$159 TAPER ACETM Rib Profiler makes tapered eliptical wing design easy Works faster computer Adjusts locks size rib instantly Curve plates provided draw 3 different full symmetrical 3 different semi-symmetrical airfoils Flat bottom airfoils can also drawn Send check M 0 $2495 Jim Denaro Model Products 543 Bedford Street Concord MA 01742
Edition: Model Aviation - 1982/11
Page Numbers: 22, 23, 24, 25, 26, 27, 28, 29, 30, 113, 116, 117
NO OCR TEXT NO OCR TEXT aircraft coached another Jim decided build own Laser took air 1978 very little differ ence two aircraft Jims has shorter land ing gear slightly different cowl different paint scheme both planes basically metallic blue light yellow trim trim stars Jims different Leos Both Lasers will represent United States World Championships 1982 Europe Leo took another first Unlimited Jim came fourth National Aerobatic Champion ships Sherman TX October last year Henry Haigh flying modified Stehens called Super Star much same Lasers will also World Champs runner-up Leo Nationals Permit take short look back some what prophetic statement made Don Berliner 1973 article aerobatic airplanes talking about Stephens Akro days something going come alongto knock Pitts off its lofty perch day upon us would appear three out top five Nats flying versions original Stephens So much has written about exploits Leo Laser couldnt add anything new substance However Ihadthe pleasure ofmeet ing Leo Jim during 1981 National Cham pionships Sherman found out both fly RC During low-ceiling weather full-size planes grounded both flew model taken modi fied Stephens smoker kicks Super Akro ChipsJune 1981 MA dont know ever plan entering competition RC keep eye model few years back mulling over ~ouu viuw urn Ln uri wr tail feathers045 music wire Landing gear attachment single tapped hole middle holds terminating #26 solder lugs held 2-56 bolts fairing block Note slight toe-in wheels Lots plumbing needed engine companment Tur TIIIIflyVflflW wing tip tne guiae aio piioi perlumlirig preurnalun both fuel smoker tanks plus feeding engine smoker aerobatics maneuvers Note rib stitching ailerons mass balance 24 Model Aviation underside wing center section showing eron servo installed hooked up Attention detail pays off Just width enough four-across servos Pushrods cable type Receiver batteries need well padded MY WI1ILLJjINb V ANUIM V lE-C tLII j IVjY I-tlNLr/ IILL Ht IPLIW BACK AFThP I6YRS AIRR71Y TO SOLO THE 15a-WTEP AAHLLBET HETALbDTI-E ME RIGHTOUTOF OF FLOAT r TOGLIAR - NE SWTF R GRT DOWNTO THE COCKP T I-fE FLYING NI 4k HEASNT r THE CUBE-f THEGROI*JD DDrYLP NEDDP DO / JULY22 2j 14HOURSYOU ~7I/\1/Ax HAVE rwOArn-fougAgjo 1-4 D BALSA FIN AND RUDDER 1/2 BALSA TJRTLE DEC TO FIN POST1/4 50 FIN POST iili / 3/32 WIRE INTO ________3/16 TUBING FOR ______________________________ELEVATOR TIE 3/32 SHEET PILOT DECK /2 BALSA COWL DECK I/B PLY AlL SERVO MOUNT 4-40 SCREWS HOLD REMOVE-ABLE COWL/8 PLYWCOD RERJFTSF FRONT AND BACK AT CENTER SECTION Fl INCUT F7 7 1/4 HARD BALSA STABILIZER AND ELEVAlOR / 3/Bx 11/2 T EDGE STOCK I/S OOfl PLATE MOUNTS AILERON BELLCRANK I/Bx 3/8 TEIX SPAR F2 I/4PLYVIUOD I- AWMINUM MOUNT F 1 1/8 LrTI PLY BACKS UP RING SiDE SHEET SPLICE 1/2 BALSA BC7IrON 3/4 BALSA SLOCK RING 7IA FOR NYLON SGREVVS 1/2 BLOCKSFP 1I/8PLYWCOD LG FILL 1/16 SHEET WEBS SIG 2 18 AWM BLANK 1 BLOCK PANTS TOP 4-40 FH SCREWS INTO TNUTS IN 1/4 PLY3/16 BALSA OUTBOARD LG MOUNT I/B Ply WCOD INBOARD WALLS ---- 7 R FROM I/4TO ZERO T-NUTS FOR SCREWS BALSA WING TIP DOUBLED I/B BALSA LEADING EDGE BUTT JOINTS OF 3/32 BALSA SKIN AILERON BEARING L4 WHEEL ON 1/16 MUSIC WIRE /850 STRINGERS 2 EACH SIDE 3/32 BOTTOM SHEET CROSS GRAIN ON 3/1650 LONGEFUNS I/B SHEET BALSA SIDES LOWER TD IS UPPER SIDES I/8X 3/B BOTTOM STRINGERS TAPER TO REAR I/B X 1/4 HARD BALSA TOP-BOTTOM SPAR CAPS 3/32BALSA RIBS I/B MED HARD SPAR HALF NOTCH OVERALLRIBS what build next decision made de velop aerobatic model RCnot FAI style flying aerobatic ship would per form like its full-size counterparts should able Aresti-type flying have smoker forvisual effects doing air-show-type flyingon weekends Super Akro Chips born After caine called Dusty little larger Chips some slight changes force arrangement Inevitably led best aerobatic machine flying today 1980 World Champion Laser cant improve something close perfection already wrote Bob Morrison Repla-Tech purchased book aerobatic airplanes RS-5000 set color pictures taken Laser World Champs Ceske Budejovice Czechoslovakia 1978 mate rial used basis forthe model ofthe Laser presented planning entering model Sport Scale competition just like build fly Scale models fun weekends suggest obtain mate rials Repla-Tech 48500 McKenzie Hwy Vida OR 97488 pics three-views used presentation book model Sport Scale contests models first contest Houston TX Manned Spacecraft Center RC Club Scale Rally October 31 November 1 1981 frontof some very strict judges Laser took first place nosing Out some fine Scale models soit obviously has po tentialtobe awinnerin competitions Ontheother hand build fly just enjoyment will find construction model un complicated average kit sport flying winter day home town Victoria TX 450 sunny light variable winds model first took air arrived field about 815 am unloaded model gear About 10 minutes later good buddy photographer fellow modeler Leon Folse arrived equipment took about 30 minutes get engine ad justed running just right no problem smoker cowl screwed both tanks fuel smoker topped off fired up taxied out lined up Pushed throttle against firewall fed littie right rudder about 100 ft off itself Made shallow right climbing turn No trim needed straight flight back Next made 1800 turn tried roll little slow getting around Made turn back kicked smoker did inside loop tracked correction Chopped smoker made turn flipped smoker again did Cuban 8 no wind smoke hanging good grinning 26 Model Aviation wing panels being assembled rear top sneeting gieo pinned Note tiP Ji95 wie-in snim under center section tapered blocks positioned midway half TSF 8SF B 02 TEUTOPLT*40410100 00 TOI sF-Fl F5A 4-0100p VS/Cr Fl1000006 ES0000F0*0F0IiI Fl4050*FTS00 78SF500 TTOLOTC0000S 1640400-4ASFR 2OO IC 00000 2048 03003 02 Coso3000030CAW.0kT000 4 00T 004004 snap thrill time Ah joy second flight model did Lomcevak smoker going quite sight did inverted flight fullpower hammerhead four inside consecutive snaps full power outside snap reverse knifeedge vertical climbing rollall smoker going Two flights put morning must say real joy fly smoker gives added dimension tried tail slide entered beautifully lack finesse sticks did allow complete maneu ver Im gonna practice 40 moves plane just about scale speed Vertical maneuvers good feel no need larger engine thats thing should enough room up front fit Study pians reading structions should have problem building off-the-shelf model supplies Construction Select balsa carefully model will turn out rightweightforgood aerobatics Heres trick thats useful models check sheets balsa will find will balance heavy end good rule thumb littie catch saying re member isfrontand center Always puttheheavy ear ear Went straight Out cut off landing no problem end toward front fuselage and/or smoker made turn dove little started aileron links put next hole center wing smoke did knife-edge across field Ive horn little throw tanks never model fly well test flight filled another flight Engine running pushed wing has built order complete After knife-edge turned downwind stick forward K&B 40 started sing- fuselage would good place start throttle eased back Made turn ing As accelerated smoker kicked construction parts full-size difinal settled near-perfect landing rolled about 50 feet moresmoke pouring out mensions can taken directly plans could have left wheel pants takeoff runway pulled up 450 did inside number ways make ribs 1 w STASILIZELEVATOR LB SEOCO1AABLBOVW _________________w __Lw LEFT PANEL -J 0 -J ci VPSAVONALSAz IIZIP__a w ____-N 0CO -J LA 0 QY ______ ___ __CZiZIZiiz /PABOULASER ZOO OARER November 1982 27 construction has b reuy ror puooing riniuncanopy maseu protection built competition get scale documentation Repla-Tech International make tracings ribs 2 use carbon paper over balsa direct transfer 3 use root tip ribs 10 blanks balsa stacked carving latter method put tip rib outside end stack root rib between first second pieces use Y16 ply patterns root tip ribs carving way spar pieces cut same piece straight-grained balsa ensure uniformity Pin piece hard alsa over plans shown spar cap Glue spar rear edge slots up keeping 900 workbench Check fit rib trim necessary Pin over plans shown 6 square jig straight piece inside piece leading edge Check-fit rib again OK glue place pin ning securely jig Cut sheet Y x 3 x 31 medium C-grain balsa half along length trailing edge sheets Glue piece 31 balsa edge of sheets 900 angle Note side view fuselage drawing shows root rib also rib *8 wing plan Glue trailing edge sheet rear rib firmly butting firmly against Check-fit piece hard alsa top spar cap has fit flush ribs Glue place fitted Lay piece medium A-grain Y32 sheet balsa over ribs front spar Sand angle edge fits -in leading edge piece Mark excess over rear edge spar trim off Glue pin sheet place making sure ribs still pinned down firmly 3/16-in jig use slower drying cabinet-type glue over ribs model-type cement along leading edge dope-type finish employed model 28 Model Aviation lIe UdbiL iueiaye P preuy weii uriuerway nere dOle /8 sneet ror pushrod exit Wing behind still needs center sheeting DOLLOITI stringer smuer tdflN Vs r ilfeWdil 0110 74lll 111011 have glued place Note T-pins easy-on-finger pushing Mere inc anoing gear ueing ilUCO 10-YIP ply i lie IUCI narrnaireauy rids installed has engine/mount fitting 115 pic snuws ill pora fit 5LCP5 rl 00110 lI1 Lilt d 0111 5CISLIUIi LP polyethylene sheet will separate wing fuselage Shes really beginning take shape now major components place Cockpit inside carved /s canopy Note shape being carved rear cockpit Fuselage side piece TSF above wing has rough-carved Cutthe aileron crank plate Ply mount crank Cut fairleads pushrod 1/16 ply pushrods made /16-in copper-coated weldingrodit doesnt rust solders quite well bends easily made Make bend aileron crank slip crank slide through holes ribs slipping fairleads go glue aileron crank plate ot cutouts ribs 6 & 7 Cut glue /32 x strips ribs Dont sheet cen ter section time glue has driedon panels unpin workbench use inside flush door assemble panels full wing doors flat straight pins push easily Draw straight line 6 ft long about 6 edge long side Draw line 900 6-ft line its center Draw two lines 900 long line spaced 29 center line pin tip jigs lines Place scrap piece /32 sheet center line crossed long line Make sure lines jigs match long center line builds proper tip washout wing Pin panels down center section lining up rear edge spar over long line mark tip jig Place 9/16-in shim under trailing edge center section pin down About halfway out panel trailing edge shim assure straight trailing edge top sheeting glued Note pic tures wing being assembled Epoxy ply joiners spar ply piece RB trailing edge Choose matching sheets /32 balsa top sheeting orderto have bal anced wing keep having add lot weight tip Fit trim top sheeting ac cording drawing right panel very careful gluing top sheeting wing just about impossible twist untwist once sheeting place Dont sheet center section over leading edge yet sheeting glue has thoroughly dried remove wing board turn over pin down after removing jigs board Epoxy ply IA ribs inside #1 ribs flush bottom curve Sheet bottom center section behind spar Glue i/ balsa webs between ribs leading edge trailing edge sheet Turn wing over Epoxy plate place over ribs 1 Sand ling edge flush top sheeting Pin panel down bench along trailing edge over wax paper poly sheet Take trailing edge stock check-fit -in trailing edge Sand needed tight fit cut proper angle center sec tion glue pin wing Repeat pro cedure other panel Using long straight edge trim trailing edge stock shown plans Sand trailing edge makes smooth transition wing sheeting Layout aile rons ball-point pen cut away Sand angle leading edge ailerons shown rib #8 wing drawing Sand -in leading edge piece flush sheeting Cut piece -in sheet little wider leading edge glue wing complete i/4.in.thick leading edge method laminating leading edge has three positive results stronger one-piece leading edge less susceptible warping easier sand proper shape due glue joint acting guide Glue t tips dont glue portion makes up aileron mass balance Sand tips shape around tip rib cut off aileron mass balance bal ance glued pinned toothpicks aileron Fuselage have access x 48 sheets balsa makes job fuselage side fabrica tion little easier glue two sheets x 36 together form six-inch sheets three times sidejointto made follows Cut two 6 x 8 pieces ofthe sheets Make dovetail joint end x 36 sheets shown side view fuselage plans make matching joint two 6 x 8 pieces Glue together basic sides Lay out thrust line sheet ball point pen use reference point fully laying out side Basically straight lines Refer isometric sketch ar rows side view layout made layout completed cut side out use pattern make another Cut doublers t glue sides Glue /i6 sq longerons side cut cabin section sides away set aside time being Pin sides over top view rear landing gear plate tail post Slide former down its place pin Use 900 triangle make sure sides square work surface cyanoacrylate glues come handy right After formers glued place top onerons glued cut outs Pull top -in sides Thin 1/54 ply pieces FC RC glued epoxy form cowlA good sanding job will givethis kind appearance nose blockand shape Two layers FC appliedply cowl sides fair nicely cowling top November 198229 Ille V4Ifl tranyuar UUW UULIFIU pIVtVb Ildv U~II jiuu havethe 1/ x 1/4 rear strips Note maple blocks nylon wing bolts Ply cowl formers Cl C2 glued place rear 1/ax 1/4 strip sanded taper vent hole cut engine bay forward Cl stabilizer mounts right behind former F-7 glue flush former angle Glue t filler pieces place shown side top views fuselage rear Install tubing Sullivan cable pushrod GRC-S using sandpaper wrapped around -in dowel forthe hole inthe balsa sheet exit point Cut turtledeck sides TD including slot stabilizer medium light a Unpin fuselage plans Cut BSF fuselage side fairings a glue place Gluethe tringer BSF tothetail post along top edge fuselage side Glue turtledeck sides place clamping clothespin rear bring sides together over tail post Glue /32 balsa bottom sheeting place dry sand flush sides Mark cen ter line bottom sheeting behind LGP tail postalso two lines -in side extending LGP 3 behind F5 Glue s stringers place lines sand center taper 3 hind F-S tail post Check-fit /i ply LGP Trim doublers needed plate fits flush sides Epoxy place Lay out firewall center thrust lines Place engine mount overthese andlayoutthe bolt holes going use solid bolt method mounting drill holes put flat washer bolt push through firewall holes rear Cut three piece 040 music wire about inch long making slight bend middle solder head slots Install engine mount tighten nuts mount snug against firewall Smear 5mm epoxy liberally over bolt heads washers wire method has worked well models has advantage com pletely fuel-proofing engine compartment rest fuselage epoxying done later Glue firewall place epoxy Glue /i ply tank floor place between firewall F-3 Assemble SS-8 fuel tank RST-6 smoker tank leave tubing long enough pass firewall about inch extending engine compartment use three-tube system tanks pluggingthe fill tube after fill ing leaving vent open facingthe prop blast slight pressure tank has always given good engine runs attitude smoker tank tubing tee made stalled pressure tubing behind valve tube run front cowl used fill smoker tank valve closed keep flooding crankcase smoke oil line plugged along vent line after tank filled Plug -in plastic caps come tubing purchased rolls may able get heating plumbing air-conditioning dealer Install throttle pushrod smoker valve pushrod tubing time using cabletype pushrods Glue -in triangle pieces F-l F-3 Cut slot right fuselage side clear engine cylinder install engine Pack foam rubber around tanks glue -in top bottom forward blocks place Cut landing gear Sig 2 x 18 x /32 aluminum landing gear blank Drill axle mounting holes bend according pat tern fairing block covers gear held 4-40 bolt tapped cen ter landing gear Place gear over LGP square up Mark mounting holes drill through LGP install blind nuts lockwith dab epoxy Glue FP- 1 FP-2 ply pieces place Glue rear wing holddown plate re cesses doublers D-2 Cut aple blocks size epoxy place shown top side views Sand wing center section leading trailing edges until good fit obtained fuselage wing saddle Glue ply piece WP wing trailing edge Center wing saddle pin down Measure tail post tip shift wing until square fuselage Drill mounting holes down through wing maple blocks Remove wing tap blocks -20 Glue bottom front center section sheeting wing Run -in drill through ply plate bottom sheeting Glue top center section sheeting wing runthe -indrillthroughthis sheetfromthebot tom up Bolt wing place fuselage Lay some poly Saran Wrap over wing pin formers F3A F5A place Glue triangle top fuselage side pieces Continued page 113 30 Model Aviation Cheek cowl bumps nave nssea ana sanaea Nose snape aria position main cowl Author works foam avoid dings nemuvanie SeUtluri 01 LUWI lidS UCil LUL away ailuilly ya lialil blocks fitted bottom stringers glued sanded OOZ H35V1 LASER t 500 orderfull-size plans Brad Shepherds Laser 200from MA will begiven free set water-transfer decals shown decal has all-yellow lettering proper size forthe model reproduced smaller magazine black background contrast What doing winter prospect long cold winter has got down let OrLine R/C kit take chill off OrLines classic World War biplanes favorite winter building project novice expert alike new Y4 scale Fairchild 22 sure provide plenty excitement its gr8ceful lines begin take shape workbench can bring back romance Immelmanns dogfights winter long two airplanes will never go out style Sopwith Pup Fokker DVII something winter Warm up OrLine Fairchild 22 Sopwith Pup Fokker DVII Wing span 98 Wing span 67/2 span 72 Wing area 1617 sq inWing area 1586 sq inWing area 1480 sq Power 2 cu Quadra r 60 90 r 60 90 $18950 $11950 $11950 ci Wi ke Cr OrLine Radio Controlled Aircraft Mfrs ox 12501 Salem Oregon 97309 phone 503 362-1606 ever saved over three dozen Joe Ott kits kits included mahogany card board sheet parts WW II shortages bass wood strips tissue glue kits may have dated 1940-1 944 built sold several Americas Hobby Center Still have eight hand Wild cat Mustang Spitfire Brewster Dauntless Stuka etc boxes area bit tattered cant swear glue good Super Jet old-timer fans inter ested would part couple would happy donate couple AMA Museum heavens sakeguys dont write ol Bill Keiths address Box 135 Division St RD No 2 Galway NY 12074 doubt hell able answer everyone wheres sporting blood Correction recent column spoke flying Cessna 120 flaps own ers pilots chide us politely 140 Both basically similar al though electrics other stuff improved 140 flaps added remember having two bad mags 120 cross-country buy elec tric bit confused numbers having also flown four-place 170which flies bet ter its trike descendantswhich assumed 140 Memory plays tricks also slight time no takeoffs land ings both immortal Airmaster prewar vintage 195 impressive hunk machinery AU friendly critics agree flaps 140 did next nothing Bob Benjamins search authentic Aeronca K plans Ive swamped ad vicedo know Bob Lopshire Bob Karlsson has local use real plane nearby too Karlsson noted Scale man meet him contest might beg him bended knees Bill Winter 4426 Altura t Fairfax VA 22030 Laser Model/Shepherd Continued page 30 shown side view Pin top sides place formers F3A F5A Slip former F-4 place eyeball top see square straight glue sides formers Glue /32 sheet F-4 forward cockpit floor Glue Vs x longerons F-4 F-S Glue F5B place Glue TSF side fairings place Glue -in side sheets F-4 F5A Remove cabin section glue -in dou blers inside side sheets between F-4 F5A op longerons Glue -in sheetovertheturtledeck7/g-in behindformerF-5 Glue tab -in top sheet 2-in forward block over fuel tank Glue -in sheet over cabin section Mark center forward rear -in blocks 5bin section drill us-in holes marks dowels Cut dowels length Hot Stuff top blocks Place cabin section back wing Pin down drill holes 4-40 FR bolts through middle dowels Remove cabin section install 4-40 blind nuts under ply tabs Taper top holes dowels screw cabin section Cut former F-i Ply Mark center Continued page 116 II ~R/C GOODIES P 0 BOX 192 NUYS CA91408 AIR213 764-1490FO 110 CAPITAL MODELS READY-TO-FLY 40 61 1Reg $15995SPAN SPECIAL $13995I $65OShipI Fully Built & Painted Controls Fuel Tank LG & Wheels installed Needs Ionly Engine Radio installationI 4 4Ce Reg $6950 SPECIAL $4995 POWER PACER R/C Battery Tester Charges & Cycles Tx & Rx batteries Locates bad cells & provides batt capacity readings cowTy TRAINER CRAFTAIR I57 ISPAN SHIP $650 Reg $4995 SPEC $3247 Kit available flatbottom semmsym Imetrical wing 2 4 Ch 19 40 Engine Calif add Sales Tax No CODs Brochure 60m US $170 Foreign 4 1/2% Surcharge VISA Visa Master Card November 1982 113 cam erty 25 cuin Engine wei9ht 4 lb 6 oz So lid state ignition Roller bearing flywheel Ball bearing rear Hemi-head chamber Schneurle ported 2 pc con rodbearings Chrome plated cylinder Magnesium case Balanced crank Pyramid reed intake Built-in choke Hem ht 725 $27900 retail Wi Ith Shaft center widest point 313 Total Width 525 Mounting plate prop 60 See local hobby shop Hell order stock CONTEMPO HOBBY PRODUCTS 11611 CANTARA ST H HOLLYWOOD CA 91605 division Con tempo Enterprises lines on front blocks Line up F-i glue place Cut canopy Sig 16 universal stock canopy Place canopy posi tion cabin section mark around top -in sheet Cut female pattern F-4 shown plans use shape turtledeck directly behind canopy Roughly cutout cockpit -in top sheet Shape theturtledeckfirstwith aknife andthenwith 100grit paper block Now place canopy cabin carve sand until have good fit Trim Out cockpit until about -in around inside canopy Remove cabin section unbolt wing bolt cabin section back Glue ertical strip front edge BSF Refer side view measure cowl outline mark fuselage sides out lines Cut glue -in triangle stock inside lines wide side glued fuse lage Note cross sections F-2 F-3 Cut C-i C-2 pieces /16 ply glue place Cut side away F-I C-l air venting taper trip Fair -in triangle formers Note bottom cowl section F-3 Cut four cowl pieces FC As ply section cowl doubled Check-fit cowl pinning place over F-i halfway over C-2 totally covering -in triangle outline Trim necessary good snug fit Epoxy fuselage sides inside cowl fuel-proof Epoxy inside cowl FC put place pin around Dont put both C-is engine side yet will glued inside cowl after cut off Cut two RC pieces /64 ply Check-fit trim needed Epoxy inside glue place over C-2 -in trian gle vertical poxy inside other FC pieces put overthe FC pieces already glued fuselage Use rubberbands around fuselage help hold snug existing cowl pin around edges cowl has dried sand FC pieces square F-i Rough-cut -in nose block glue F-i Using 100-grit paper block carefully sand top bottom blocks nose shape fairing smoothly ply cowl Take one-inch block little larger cowl bump cut side angle see Step i fuselage drawing cut outline rough shape Step 2 Using piece 80-grit paper wrapped around 4-oz dope bottle similarsized cylinder carefully sand inside con tinue trial-fitting ply cowl Step 3 good fit obtained cut sand outside rough shape Step 4 glue position per side view fuselage Sand bumps until fair smoothly cowling Any imper Tail surfaces Cut -in slot turtledeck top block forward fin goes using straightedge line up fuselage center line Bolt wing fit stab slot turtledeck sides Line up stab parallel wing rearview square fuselage top view Glue stab place glue finusing 900 angles made scrap balsa keep fin square stab wing drying elevator connecting bar made s tubing 332-in music wire Solder music wire holes tubing Recess elevators tubing goes Pin eleva tors down workbench proper distance apart butting against straightedge Fit bar elevators mark places music wire enters elevator Drill holes elevators pin back down making sure Epoxy bar place always cut slots fit hinges surfaces before finishing put model can done now hinges will glued after model completely finished Detailing Williams Bros 2-in sport pilot used few modifications try make look like Leo Loudenslager point nose sanded off slightly talc dope mixed stiff putty modify hair mixture will soften plastic careful takes about two days harden again globbed mixture head using some photos Leo guide dry coping saw blade raked across putty simulate hair painted hair yellow Pactra Namel followed mixture flat brown yellow lighten brown After dry saw blade used againto sim ulate strands hair takes little fiddlin results pretty good shirt painted flat red Leo saw pilot figure Sher man laughed Jim Roberts said looked just like himso guess its close enough Sport Scale inside cockpit sanded smooth /32 sheet instrument panel glued place cockpit painted Glue block balsa bottom pilot figure trim shape pilot Place pilot cockpit trim bottom block until head just clears canopy Paint block red match pilots shirt glue Glue canopy being careful smear glue Mask off can opy keep clean finishing model 116 Model Aviation fections bumps can smoothed putty before covering finishing Using Zona Saw cut cowl cabin section separation remove cabin Mark off portion front cowl re movable over engine Use Zona Saw back removed cut portion away Glue Vs ply hold-down tabs place Drill -in holes cowling dowels glue dowels Hot Stuff Drill through dowels ply tabs mount blind nuts under tabs Glue other C- 1 inside cowl flush rear edge shown top view Make smoker valve shown draw ing buy commercial valve Mount ply wood epoxy itto inside cowl per top view combination smoke chamber tail pipe muffler fabricatedfrom light steel tub ing -in soft brass tubing 12-gauge sheet metal flange stuffed steel wool cap ped 26-gauge sheet holes drilled order have enough heat vaporize fluid its necessary insulate whole cham ber six seven wrapped thicknesses light fiberglass cloth Make covers insulation tin can Bend sheetmetal overthe fiber glass solder edges holding place twisted wire until solder hardens genera tor works very nicely using Texaco almag fluid smoke dense has good hang time Cover engine mount bolts short pieces fuel tubing brush slow-driving epoxy inside engine compartment fuelproof model presented has doped finish Silk used bottom half fuselage wing remainder model covered lightweight silkspan Aerogloss metallic blue very close color Leos Laser Yellow trim used adding white until correct shade attained match decals best way found match decal color cut out 716-in-wide LASER 200 de cal attach itto blue-doped wheel pants proper placethen kept experimenting yellow until matched decal color dab blue may have added yellow really good match star sizes shown fuselage draw ing fuselage stars masked off doped white pattern ofthe wing stars made Y16 ply stars cut Sig white decal sheet decals come plans given two coats clear polyurethane after have dried thoroughly tail feather bracing made 045 music wire #26 solder lugs soldered ends held 2-56 bolts simulated rib stitching fin rudder stab elevators ailerons made Manila paper file folder material pizza cutter rolled over about 3/is-in intervals toindentitthenitiscutinto5/32-in strips doped surfaces effect good 15 feet Most folks have own favorite way stalling radio gear Mine shown plans ship balanced CG shown add ing weight build bird believe will give hours truly enjoyable aerobatic flyingIf go full route detailing will com petitive other Sport Scale models vari ous meets See Nats General Con fin ued page 33 competition some events such RC Pattern running five consecutive days World Championships involve much Natsin number people days hours Consider Nats competition begins November 1982 117 4 ft MODEL ENGINEHEAT SHRINKWING SADDLE FUEL LINETUBINGFOAM TAPE 1/16 dia Special formulated high grade Ideal sleeving plugs conblack neoprene tubing glow nectors Shrinkable using gas oil diesel fuels soldering iron cigarette lighter Part No 200-249$149Part No200-250$ 98 Kraft Systems 450 W California Ave Vista CA 920830 Division Carlisle Corporation Pressure sensitive adhesive side 1/16 x 4 Easy apply Makes neat looking wing fuselage fit Can also used seal access hatches cowlings etc Part No 200-251$159 TAPER ACETM Rib Profiler makes tapered eliptical wing design easy Works faster computer Adjusts locks size rib instantly Curve plates provided draw 3 different full symmetrical 3 different semi-symmetrical airfoils Flat bottom airfoils can also drawn Send check M 0 $2495 Jim Denaro Model Products 543 Bedford Street Concord MA 01742
Edition: Model Aviation - 1982/11
Page Numbers: 22, 23, 24, 25, 26, 27, 28, 29, 30, 113, 116, 117
NO OCR TEXT NO OCR TEXT aircraft coached another Jim decided build own Laser took air 1978 very little differ ence two aircraft Jims has shorter land ing gear slightly different cowl different paint scheme both planes basically metallic blue light yellow trim trim stars Jims different Leos Both Lasers will represent United States World Championships 1982 Europe Leo took another first Unlimited Jim came fourth National Aerobatic Champion ships Sherman TX October last year Henry Haigh flying modified Stehens called Super Star much same Lasers will also World Champs runner-up Leo Nationals Permit take short look back some what prophetic statement made Don Berliner 1973 article aerobatic airplanes talking about Stephens Akro days something going come alongto knock Pitts off its lofty perch day upon us would appear three out top five Nats flying versions original Stephens So much has written about exploits Leo Laser couldnt add anything new substance However Ihadthe pleasure ofmeet ing Leo Jim during 1981 National Cham pionships Sherman found out both fly RC During low-ceiling weather full-size planes grounded both flew model taken modi fied Stephens smoker kicks Super Akro ChipsJune 1981 MA dont know ever plan entering competition RC keep eye model few years back mulling over ~ouu viuw urn Ln uri wr tail feathers045 music wire Landing gear attachment single tapped hole middle holds terminating #26 solder lugs held 2-56 bolts fairing block Note slight toe-in wheels Lots plumbing needed engine companment Tur TIIIIflyVflflW wing tip tne guiae aio piioi perlumlirig preurnalun both fuel smoker tanks plus feeding engine smoker aerobatics maneuvers Note rib stitching ailerons mass balance 24 Model Aviation underside wing center section showing eron servo installed hooked up Attention detail pays off Just width enough four-across servos Pushrods cable type Receiver batteries need well padded MY WI1ILLJjINb V ANUIM V lE-C tLII j IVjY I-tlNLr/ IILL Ht IPLIW BACK AFThP I6YRS AIRR71Y TO SOLO THE 15a-WTEP AAHLLBET HETALbDTI-E ME RIGHTOUTOF OF FLOAT r TOGLIAR - NE SWTF R GRT DOWNTO THE COCKP T I-fE FLYING NI 4k HEASNT r THE CUBE-f THEGROI*JD DDrYLP NEDDP DO / JULY22 2j 14HOURSYOU ~7I/\1/Ax HAVE rwOArn-fougAgjo 1-4 D BALSA FIN AND RUDDER 1/2 BALSA TJRTLE DEC TO FIN POST1/4 50 FIN POST iili / 3/32 WIRE INTO ________3/16 TUBING FOR ______________________________ELEVATOR TIE 3/32 SHEET PILOT DECK /2 BALSA COWL DECK I/B PLY AlL SERVO MOUNT 4-40 SCREWS HOLD REMOVE-ABLE COWL/8 PLYWCOD RERJFTSF FRONT AND BACK AT CENTER SECTION Fl INCUT F7 7 1/4 HARD BALSA STABILIZER AND ELEVAlOR / 3/Bx 11/2 T EDGE STOCK I/S OOfl PLATE MOUNTS AILERON BELLCRANK I/Bx 3/8 TEIX SPAR F2 I/4PLYVIUOD I- AWMINUM MOUNT F 1 1/8 LrTI PLY BACKS UP RING SiDE SHEET SPLICE 1/2 BALSA BC7IrON 3/4 BALSA SLOCK RING 7IA FOR NYLON SGREVVS 1/2 BLOCKSFP 1I/8PLYWCOD LG FILL 1/16 SHEET WEBS SIG 2 18 AWM BLANK 1 BLOCK PANTS TOP 4-40 FH SCREWS INTO TNUTS IN 1/4 PLY3/16 BALSA OUTBOARD LG MOUNT I/B Ply WCOD INBOARD WALLS ---- 7 R FROM I/4TO ZERO T-NUTS FOR SCREWS BALSA WING TIP DOUBLED I/B BALSA LEADING EDGE BUTT JOINTS OF 3/32 BALSA SKIN AILERON BEARING L4 WHEEL ON 1/16 MUSIC WIRE /850 STRINGERS 2 EACH SIDE 3/32 BOTTOM SHEET CROSS GRAIN ON 3/1650 LONGEFUNS I/B SHEET BALSA SIDES LOWER TD IS UPPER SIDES I/8X 3/B BOTTOM STRINGERS TAPER TO REAR I/B X 1/4 HARD BALSA TOP-BOTTOM SPAR CAPS 3/32BALSA RIBS I/B MED HARD SPAR HALF NOTCH OVERALLRIBS what build next decision made de velop aerobatic model RCnot FAI style flying aerobatic ship would per form like its full-size counterparts should able Aresti-type flying have smoker forvisual effects doing air-show-type flyingon weekends Super Akro Chips born After caine called Dusty little larger Chips some slight changes force arrangement Inevitably led best aerobatic machine flying today 1980 World Champion Laser cant improve something close perfection already wrote Bob Morrison Repla-Tech purchased book aerobatic airplanes RS-5000 set color pictures taken Laser World Champs Ceske Budejovice Czechoslovakia 1978 mate rial used basis forthe model ofthe Laser presented planning entering model Sport Scale competition just like build fly Scale models fun weekends suggest obtain mate rials Repla-Tech 48500 McKenzie Hwy Vida OR 97488 pics three-views used presentation book model Sport Scale contests models first contest Houston TX Manned Spacecraft Center RC Club Scale Rally October 31 November 1 1981 frontof some very strict judges Laser took first place nosing Out some fine Scale models soit obviously has po tentialtobe awinnerin competitions Ontheother hand build fly just enjoyment will find construction model un complicated average kit sport flying winter day home town Victoria TX 450 sunny light variable winds model first took air arrived field about 815 am unloaded model gear About 10 minutes later good buddy photographer fellow modeler Leon Folse arrived equipment took about 30 minutes get engine ad justed running just right no problem smoker cowl screwed both tanks fuel smoker topped off fired up taxied out lined up Pushed throttle against firewall fed littie right rudder about 100 ft off itself Made shallow right climbing turn No trim needed straight flight back Next made 1800 turn tried roll little slow getting around Made turn back kicked smoker did inside loop tracked correction Chopped smoker made turn flipped smoker again did Cuban 8 no wind smoke hanging good grinning 26 Model Aviation wing panels being assembled rear top sneeting gieo pinned Note tiP Ji95 wie-in snim under center section tapered blocks positioned midway half TSF 8SF B 02 TEUTOPLT*40410100 00 TOI sF-Fl F5A 4-0100p VS/Cr Fl1000006 ES0000F0*0F0IiI Fl4050*FTS00 78SF500 TTOLOTC0000S 1640400-4ASFR 2OO IC 00000 2048 03003 02 Coso3000030CAW.0kT000 4 00T 004004 snap thrill time Ah joy second flight model did Lomcevak smoker going quite sight did inverted flight fullpower hammerhead four inside consecutive snaps full power outside snap reverse knifeedge vertical climbing rollall smoker going Two flights put morning must say real joy fly smoker gives added dimension tried tail slide entered beautifully lack finesse sticks did allow complete maneu ver Im gonna practice 40 moves plane just about scale speed Vertical maneuvers good feel no need larger engine thats thing should enough room up front fit Study pians reading structions should have problem building off-the-shelf model supplies Construction Select balsa carefully model will turn out rightweightforgood aerobatics Heres trick thats useful models check sheets balsa will find will balance heavy end good rule thumb littie catch saying re member isfrontand center Always puttheheavy ear ear Went straight Out cut off landing no problem end toward front fuselage and/or smoker made turn dove little started aileron links put next hole center wing smoke did knife-edge across field Ive horn little throw tanks never model fly well test flight filled another flight Engine running pushed wing has built order complete After knife-edge turned downwind stick forward K&B 40 started sing- fuselage would good place start throttle eased back Made turn ing As accelerated smoker kicked construction parts full-size difinal settled near-perfect landing rolled about 50 feet moresmoke pouring out mensions can taken directly plans could have left wheel pants takeoff runway pulled up 450 did inside number ways make ribs 1 w STASILIZELEVATOR LB SEOCO1AABLBOVW _________________w __Lw LEFT PANEL -J 0 -J ci VPSAVONALSAz IIZIP__a w ____-N 0CO -J LA 0 QY ______ ___ __CZiZIZiiz /PABOULASER ZOO OARER November 1982 27 construction has b reuy ror puooing riniuncanopy maseu protection built competition get scale documentation Repla-Tech International make tracings ribs 2 use carbon paper over balsa direct transfer 3 use root tip ribs 10 blanks balsa stacked carving latter method put tip rib outside end stack root rib between first second pieces use Y16 ply patterns root tip ribs carving way spar pieces cut same piece straight-grained balsa ensure uniformity Pin piece hard alsa over plans shown spar cap Glue spar rear edge slots up keeping 900 workbench Check fit rib trim necessary Pin over plans shown 6 square jig straight piece inside piece leading edge Check-fit rib again OK glue place pin ning securely jig Cut sheet Y x 3 x 31 medium C-grain balsa half along length trailing edge sheets Glue piece 31 balsa edge of sheets 900 angle Note side view fuselage drawing shows root rib also rib *8 wing plan Glue trailing edge sheet rear rib firmly butting firmly against Check-fit piece hard alsa top spar cap has fit flush ribs Glue place fitted Lay piece medium A-grain Y32 sheet balsa over ribs front spar Sand angle edge fits -in leading edge piece Mark excess over rear edge spar trim off Glue pin sheet place making sure ribs still pinned down firmly 3/16-in jig use slower drying cabinet-type glue over ribs model-type cement along leading edge dope-type finish employed model 28 Model Aviation lIe UdbiL iueiaye P preuy weii uriuerway nere dOle /8 sneet ror pushrod exit Wing behind still needs center sheeting DOLLOITI stringer smuer tdflN Vs r ilfeWdil 0110 74lll 111011 have glued place Note T-pins easy-on-finger pushing Mere inc anoing gear ueing ilUCO 10-YIP ply i lie IUCI narrnaireauy rids installed has engine/mount fitting 115 pic snuws ill pora fit 5LCP5 rl 00110 lI1 Lilt d 0111 5CISLIUIi LP polyethylene sheet will separate wing fuselage Shes really beginning take shape now major components place Cockpit inside carved /s canopy Note shape being carved rear cockpit Fuselage side piece TSF above wing has rough-carved Cutthe aileron crank plate Ply mount crank Cut fairleads pushrod 1/16 ply pushrods made /16-in copper-coated weldingrodit doesnt rust solders quite well bends easily made Make bend aileron crank slip crank slide through holes ribs slipping fairleads go glue aileron crank plate ot cutouts ribs 6 & 7 Cut glue /32 x strips ribs Dont sheet cen ter section time glue has driedon panels unpin workbench use inside flush door assemble panels full wing doors flat straight pins push easily Draw straight line 6 ft long about 6 edge long side Draw line 900 6-ft line its center Draw two lines 900 long line spaced 29 center line pin tip jigs lines Place scrap piece /32 sheet center line crossed long line Make sure lines jigs match long center line builds proper tip washout wing Pin panels down center section lining up rear edge spar over long line mark tip jig Place 9/16-in shim under trailing edge center section pin down About halfway out panel trailing edge shim assure straight trailing edge top sheeting glued Note pic tures wing being assembled Epoxy ply joiners spar ply piece RB trailing edge Choose matching sheets /32 balsa top sheeting orderto have bal anced wing keep having add lot weight tip Fit trim top sheeting ac cording drawing right panel very careful gluing top sheeting wing just about impossible twist untwist once sheeting place Dont sheet center section over leading edge yet sheeting glue has thoroughly dried remove wing board turn over pin down after removing jigs board Epoxy ply IA ribs inside #1 ribs flush bottom curve Sheet bottom center section behind spar Glue i/ balsa webs between ribs leading edge trailing edge sheet Turn wing over Epoxy plate place over ribs 1 Sand ling edge flush top sheeting Pin panel down bench along trailing edge over wax paper poly sheet Take trailing edge stock check-fit -in trailing edge Sand needed tight fit cut proper angle center sec tion glue pin wing Repeat pro cedure other panel Using long straight edge trim trailing edge stock shown plans Sand trailing edge makes smooth transition wing sheeting Layout aile rons ball-point pen cut away Sand angle leading edge ailerons shown rib #8 wing drawing Sand -in leading edge piece flush sheeting Cut piece -in sheet little wider leading edge glue wing complete i/4.in.thick leading edge method laminating leading edge has three positive results stronger one-piece leading edge less susceptible warping easier sand proper shape due glue joint acting guide Glue t tips dont glue portion makes up aileron mass balance Sand tips shape around tip rib cut off aileron mass balance bal ance glued pinned toothpicks aileron Fuselage have access x 48 sheets balsa makes job fuselage side fabrica tion little easier glue two sheets x 36 together form six-inch sheets three times sidejointto made follows Cut two 6 x 8 pieces ofthe sheets Make dovetail joint end x 36 sheets shown side view fuselage plans make matching joint two 6 x 8 pieces Glue together basic sides Lay out thrust line sheet ball point pen use reference point fully laying out side Basically straight lines Refer isometric sketch ar rows side view layout made layout completed cut side out use pattern make another Cut doublers t glue sides Glue /i6 sq longerons side cut cabin section sides away set aside time being Pin sides over top view rear landing gear plate tail post Slide former down its place pin Use 900 triangle make sure sides square work surface cyanoacrylate glues come handy right After formers glued place top onerons glued cut outs Pull top -in sides Thin 1/54 ply pieces FC RC glued epoxy form cowlA good sanding job will givethis kind appearance nose blockand shape Two layers FC appliedply cowl sides fair nicely cowling top November 198229 Ille V4Ifl tranyuar UUW UULIFIU pIVtVb Ildv U~II jiuu havethe 1/ x 1/4 rear strips Note maple blocks nylon wing bolts Ply cowl formers Cl C2 glued place rear 1/ax 1/4 strip sanded taper vent hole cut engine bay forward Cl stabilizer mounts right behind former F-7 glue flush former angle Glue t filler pieces place shown side top views fuselage rear Install tubing Sullivan cable pushrod GRC-S using sandpaper wrapped around -in dowel forthe hole inthe balsa sheet exit point Cut turtledeck sides TD including slot stabilizer medium light a Unpin fuselage plans Cut BSF fuselage side fairings a glue place Gluethe tringer BSF tothetail post along top edge fuselage side Glue turtledeck sides place clamping clothespin rear bring sides together over tail post Glue /32 balsa bottom sheeting place dry sand flush sides Mark cen ter line bottom sheeting behind LGP tail postalso two lines -in side extending LGP 3 behind F5 Glue s stringers place lines sand center taper 3 hind F-S tail post Check-fit /i ply LGP Trim doublers needed plate fits flush sides Epoxy place Lay out firewall center thrust lines Place engine mount overthese andlayoutthe bolt holes going use solid bolt method mounting drill holes put flat washer bolt push through firewall holes rear Cut three piece 040 music wire about inch long making slight bend middle solder head slots Install engine mount tighten nuts mount snug against firewall Smear 5mm epoxy liberally over bolt heads washers wire method has worked well models has advantage com pletely fuel-proofing engine compartment rest fuselage epoxying done later Glue firewall place epoxy Glue /i ply tank floor place between firewall F-3 Assemble SS-8 fuel tank RST-6 smoker tank leave tubing long enough pass firewall about inch extending engine compartment use three-tube system tanks pluggingthe fill tube after fill ing leaving vent open facingthe prop blast slight pressure tank has always given good engine runs attitude smoker tank tubing tee made stalled pressure tubing behind valve tube run front cowl used fill smoker tank valve closed keep flooding crankcase smoke oil line plugged along vent line after tank filled Plug -in plastic caps come tubing purchased rolls may able get heating plumbing air-conditioning dealer Install throttle pushrod smoker valve pushrod tubing time using cabletype pushrods Glue -in triangle pieces F-l F-3 Cut slot right fuselage side clear engine cylinder install engine Pack foam rubber around tanks glue -in top bottom forward blocks place Cut landing gear Sig 2 x 18 x /32 aluminum landing gear blank Drill axle mounting holes bend according pat tern fairing block covers gear held 4-40 bolt tapped cen ter landing gear Place gear over LGP square up Mark mounting holes drill through LGP install blind nuts lockwith dab epoxy Glue FP- 1 FP-2 ply pieces place Glue rear wing holddown plate re cesses doublers D-2 Cut aple blocks size epoxy place shown top side views Sand wing center section leading trailing edges until good fit obtained fuselage wing saddle Glue ply piece WP wing trailing edge Center wing saddle pin down Measure tail post tip shift wing until square fuselage Drill mounting holes down through wing maple blocks Remove wing tap blocks -20 Glue bottom front center section sheeting wing Run -in drill through ply plate bottom sheeting Glue top center section sheeting wing runthe -indrillthroughthis sheetfromthebot tom up Bolt wing place fuselage Lay some poly Saran Wrap over wing pin formers F3A F5A place Glue triangle top fuselage side pieces Continued page 113 30 Model Aviation Cheek cowl bumps nave nssea ana sanaea Nose snape aria position main cowl Author works foam avoid dings nemuvanie SeUtluri 01 LUWI lidS UCil LUL away ailuilly ya lialil blocks fitted bottom stringers glued sanded OOZ H35V1 LASER t 500 orderfull-size plans Brad Shepherds Laser 200from MA will begiven free set water-transfer decals shown decal has all-yellow lettering proper size forthe model reproduced smaller magazine black background contrast What doing winter prospect long cold winter has got down let OrLine R/C kit take chill off OrLines classic World War biplanes favorite winter building project novice expert alike new Y4 scale Fairchild 22 sure provide plenty excitement its gr8ceful lines begin take shape workbench can bring back romance Immelmanns dogfights winter long two airplanes will never go out style Sopwith Pup Fokker DVII something winter Warm up OrLine Fairchild 22 Sopwith Pup Fokker DVII Wing span 98 Wing span 67/2 span 72 Wing area 1617 sq inWing area 1586 sq inWing area 1480 sq Power 2 cu Quadra r 60 90 r 60 90 $18950 $11950 $11950 ci Wi ke Cr OrLine Radio Controlled Aircraft Mfrs ox 12501 Salem Oregon 97309 phone 503 362-1606 ever saved over three dozen Joe Ott kits kits included mahogany card board sheet parts WW II shortages bass wood strips tissue glue kits may have dated 1940-1 944 built sold several Americas Hobby Center Still have eight hand Wild cat Mustang Spitfire Brewster Dauntless Stuka etc boxes area bit tattered cant swear glue good Super Jet old-timer fans inter ested would part couple would happy donate couple AMA Museum heavens sakeguys dont write ol Bill Keiths address Box 135 Division St RD No 2 Galway NY 12074 doubt hell able answer everyone wheres sporting blood Correction recent column spoke flying Cessna 120 flaps own ers pilots chide us politely 140 Both basically similar al though electrics other stuff improved 140 flaps added remember having two bad mags 120 cross-country buy elec tric bit confused numbers having also flown four-place 170which flies bet ter its trike descendantswhich assumed 140 Memory plays tricks also slight time no takeoffs land ings both immortal Airmaster prewar vintage 195 impressive hunk machinery AU friendly critics agree flaps 140 did next nothing Bob Benjamins search authentic Aeronca K plans Ive swamped ad vicedo know Bob Lopshire Bob Karlsson has local use real plane nearby too Karlsson noted Scale man meet him contest might beg him bended knees Bill Winter 4426 Altura t Fairfax VA 22030 Laser Model/Shepherd Continued page 30 shown side view Pin top sides place formers F3A F5A Slip former F-4 place eyeball top see square straight glue sides formers Glue /32 sheet F-4 forward cockpit floor Glue Vs x longerons F-4 F-S Glue F5B place Glue TSF side fairings place Glue -in side sheets F-4 F5A Remove cabin section glue -in dou blers inside side sheets between F-4 F5A op longerons Glue -in sheetovertheturtledeck7/g-in behindformerF-5 Glue tab -in top sheet 2-in forward block over fuel tank Glue -in sheet over cabin section Mark center forward rear -in blocks 5bin section drill us-in holes marks dowels Cut dowels length Hot Stuff top blocks Place cabin section back wing Pin down drill holes 4-40 FR bolts through middle dowels Remove cabin section install 4-40 blind nuts under ply tabs Taper top holes dowels screw cabin section Cut former F-i Ply Mark center Continued page 116 II ~R/C GOODIES P 0 BOX 192 NUYS CA91408 AIR213 764-1490FO 110 CAPITAL MODELS READY-TO-FLY 40 61 1Reg $15995SPAN SPECIAL $13995I $65OShipI Fully Built & Painted Controls Fuel Tank LG & Wheels installed Needs Ionly Engine Radio installationI 4 4Ce Reg $6950 SPECIAL $4995 POWER PACER R/C Battery Tester Charges & Cycles Tx & Rx batteries Locates bad cells & provides batt capacity readings cowTy TRAINER CRAFTAIR I57 ISPAN SHIP $650 Reg $4995 SPEC $3247 Kit available flatbottom semmsym Imetrical wing 2 4 Ch 19 40 Engine Calif add Sales Tax No CODs Brochure 60m US $170 Foreign 4 1/2% Surcharge VISA Visa Master Card November 1982 113 cam erty 25 cuin Engine wei9ht 4 lb 6 oz So lid state ignition Roller bearing flywheel Ball bearing rear Hemi-head chamber Schneurle ported 2 pc con rodbearings Chrome plated cylinder Magnesium case Balanced crank Pyramid reed intake Built-in choke Hem ht 725 $27900 retail Wi Ith Shaft center widest point 313 Total Width 525 Mounting plate prop 60 See local hobby shop Hell order stock CONTEMPO HOBBY PRODUCTS 11611 CANTARA ST H HOLLYWOOD CA 91605 division Con tempo Enterprises lines on front blocks Line up F-i glue place Cut canopy Sig 16 universal stock canopy Place canopy posi tion cabin section mark around top -in sheet Cut female pattern F-4 shown plans use shape turtledeck directly behind canopy Roughly cutout cockpit -in top sheet Shape theturtledeckfirstwith aknife andthenwith 100grit paper block Now place canopy cabin carve sand until have good fit Trim Out cockpit until about -in around inside canopy Remove cabin section unbolt wing bolt cabin section back Glue ertical strip front edge BSF Refer side view measure cowl outline mark fuselage sides out lines Cut glue -in triangle stock inside lines wide side glued fuse lage Note cross sections F-2 F-3 Cut C-i C-2 pieces /16 ply glue place Cut side away F-I C-l air venting taper trip Fair -in triangle formers Note bottom cowl section F-3 Cut four cowl pieces FC As ply section cowl doubled Check-fit cowl pinning place over F-i halfway over C-2 totally covering -in triangle outline Trim necessary good snug fit Epoxy fuselage sides inside cowl fuel-proof Epoxy inside cowl FC put place pin around Dont put both C-is engine side yet will glued inside cowl after cut off Cut two RC pieces /64 ply Check-fit trim needed Epoxy inside glue place over C-2 -in trian gle vertical poxy inside other FC pieces put overthe FC pieces already glued fuselage Use rubberbands around fuselage help hold snug existing cowl pin around edges cowl has dried sand FC pieces square F-i Rough-cut -in nose block glue F-i Using 100-grit paper block carefully sand top bottom blocks nose shape fairing smoothly ply cowl Take one-inch block little larger cowl bump cut side angle see Step i fuselage drawing cut outline rough shape Step 2 Using piece 80-grit paper wrapped around 4-oz dope bottle similarsized cylinder carefully sand inside con tinue trial-fitting ply cowl Step 3 good fit obtained cut sand outside rough shape Step 4 glue position per side view fuselage Sand bumps until fair smoothly cowling Any imper Tail surfaces Cut -in slot turtledeck top block forward fin goes using straightedge line up fuselage center line Bolt wing fit stab slot turtledeck sides Line up stab parallel wing rearview square fuselage top view Glue stab place glue finusing 900 angles made scrap balsa keep fin square stab wing drying elevator connecting bar made s tubing 332-in music wire Solder music wire holes tubing Recess elevators tubing goes Pin eleva tors down workbench proper distance apart butting against straightedge Fit bar elevators mark places music wire enters elevator Drill holes elevators pin back down making sure Epoxy bar place always cut slots fit hinges surfaces before finishing put model can done now hinges will glued after model completely finished Detailing Williams Bros 2-in sport pilot used few modifications try make look like Leo Loudenslager point nose sanded off slightly talc dope mixed stiff putty modify hair mixture will soften plastic careful takes about two days harden again globbed mixture head using some photos Leo guide dry coping saw blade raked across putty simulate hair painted hair yellow Pactra Namel followed mixture flat brown yellow lighten brown After dry saw blade used againto sim ulate strands hair takes little fiddlin results pretty good shirt painted flat red Leo saw pilot figure Sher man laughed Jim Roberts said looked just like himso guess its close enough Sport Scale inside cockpit sanded smooth /32 sheet instrument panel glued place cockpit painted Glue block balsa bottom pilot figure trim shape pilot Place pilot cockpit trim bottom block until head just clears canopy Paint block red match pilots shirt glue Glue canopy being careful smear glue Mask off can opy keep clean finishing model 116 Model Aviation fections bumps can smoothed putty before covering finishing Using Zona Saw cut cowl cabin section separation remove cabin Mark off portion front cowl re movable over engine Use Zona Saw back removed cut portion away Glue Vs ply hold-down tabs place Drill -in holes cowling dowels glue dowels Hot Stuff Drill through dowels ply tabs mount blind nuts under tabs Glue other C- 1 inside cowl flush rear edge shown top view Make smoker valve shown draw ing buy commercial valve Mount ply wood epoxy itto inside cowl per top view combination smoke chamber tail pipe muffler fabricatedfrom light steel tub ing -in soft brass tubing 12-gauge sheet metal flange stuffed steel wool cap ped 26-gauge sheet holes drilled order have enough heat vaporize fluid its necessary insulate whole cham ber six seven wrapped thicknesses light fiberglass cloth Make covers insulation tin can Bend sheetmetal overthe fiber glass solder edges holding place twisted wire until solder hardens genera tor works very nicely using Texaco almag fluid smoke dense has good hang time Cover engine mount bolts short pieces fuel tubing brush slow-driving epoxy inside engine compartment fuelproof model presented has doped finish Silk used bottom half fuselage wing remainder model covered lightweight silkspan Aerogloss metallic blue very close color Leos Laser Yellow trim used adding white until correct shade attained match decals best way found match decal color cut out 716-in-wide LASER 200 de cal attach itto blue-doped wheel pants proper placethen kept experimenting yellow until matched decal color dab blue may have added yellow really good match star sizes shown fuselage draw ing fuselage stars masked off doped white pattern ofthe wing stars made Y16 ply stars cut Sig white decal sheet decals come plans given two coats clear polyurethane after have dried thoroughly tail feather bracing made 045 music wire #26 solder lugs soldered ends held 2-56 bolts simulated rib stitching fin rudder stab elevators ailerons made Manila paper file folder material pizza cutter rolled over about 3/is-in intervals toindentitthenitiscutinto5/32-in strips doped surfaces effect good 15 feet Most folks have own favorite way stalling radio gear Mine shown plans ship balanced CG shown add ing weight build bird believe will give hours truly enjoyable aerobatic flyingIf go full route detailing will com petitive other Sport Scale models vari ous meets See Nats General Con fin ued page 33 competition some events such RC Pattern running five consecutive days World Championships involve much Natsin number people days hours Consider Nats competition begins November 1982 117 4 ft MODEL ENGINEHEAT SHRINKWING SADDLE FUEL LINETUBINGFOAM TAPE 1/16 dia Special formulated high grade Ideal sleeving plugs conblack neoprene tubing glow nectors Shrinkable using gas oil diesel fuels soldering iron cigarette lighter Part No 200-249$149Part No200-250$ 98 Kraft Systems 450 W California Ave Vista CA 920830 Division Carlisle Corporation Pressure sensitive adhesive side 1/16 x 4 Easy apply Makes neat looking wing fuselage fit Can also used seal access hatches cowlings etc Part No 200-251$159 TAPER ACETM Rib Profiler makes tapered eliptical wing design easy Works faster computer Adjusts locks size rib instantly Curve plates provided draw 3 different full symmetrical 3 different semi-symmetrical airfoils Flat bottom airfoils can also drawn Send check M 0 $2495 Jim Denaro Model Products 543 Bedford Street Concord MA 01742
Edition: Model Aviation - 1982/11
Page Numbers: 22, 23, 24, 25, 26, 27, 28, 29, 30, 113, 116, 117
NO OCR TEXT NO OCR TEXT aircraft coached another Jim decided build own Laser took air 1978 very little differ ence two aircraft Jims has shorter land ing gear slightly different cowl different paint scheme both planes basically metallic blue light yellow trim trim stars Jims different Leos Both Lasers will represent United States World Championships 1982 Europe Leo took another first Unlimited Jim came fourth National Aerobatic Champion ships Sherman TX October last year Henry Haigh flying modified Stehens called Super Star much same Lasers will also World Champs runner-up Leo Nationals Permit take short look back some what prophetic statement made Don Berliner 1973 article aerobatic airplanes talking about Stephens Akro days something going come alongto knock Pitts off its lofty perch day upon us would appear three out top five Nats flying versions original Stephens So much has written about exploits Leo Laser couldnt add anything new substance However Ihadthe pleasure ofmeet ing Leo Jim during 1981 National Cham pionships Sherman found out both fly RC During low-ceiling weather full-size planes grounded both flew model taken modi fied Stephens smoker kicks Super Akro ChipsJune 1981 MA dont know ever plan entering competition RC keep eye model few years back mulling over ~ouu viuw urn Ln uri wr tail feathers045 music wire Landing gear attachment single tapped hole middle holds terminating #26 solder lugs held 2-56 bolts fairing block Note slight toe-in wheels Lots plumbing needed engine companment Tur TIIIIflyVflflW wing tip tne guiae aio piioi perlumlirig preurnalun both fuel smoker tanks plus feeding engine smoker aerobatics maneuvers Note rib stitching ailerons mass balance 24 Model Aviation underside wing center section showing eron servo installed hooked up Attention detail pays off Just width enough four-across servos Pushrods cable type Receiver batteries need well padded MY WI1ILLJjINb V ANUIM V lE-C tLII j IVjY I-tlNLr/ IILL Ht IPLIW BACK AFThP I6YRS AIRR71Y TO SOLO THE 15a-WTEP AAHLLBET HETALbDTI-E ME RIGHTOUTOF OF FLOAT r TOGLIAR - NE SWTF R GRT DOWNTO THE COCKP T I-fE FLYING NI 4k HEASNT r THE CUBE-f THEGROI*JD DDrYLP NEDDP DO / JULY22 2j 14HOURSYOU ~7I/\1/Ax HAVE rwOArn-fougAgjo 1-4 D BALSA FIN AND RUDDER 1/2 BALSA TJRTLE DEC TO FIN POST1/4 50 FIN POST iili / 3/32 WIRE INTO ________3/16 TUBING FOR ______________________________ELEVATOR TIE 3/32 SHEET PILOT DECK /2 BALSA COWL DECK I/B PLY AlL SERVO MOUNT 4-40 SCREWS HOLD REMOVE-ABLE COWL/8 PLYWCOD RERJFTSF FRONT AND BACK AT CENTER SECTION Fl INCUT F7 7 1/4 HARD BALSA STABILIZER AND ELEVAlOR / 3/Bx 11/2 T EDGE STOCK I/S OOfl PLATE MOUNTS AILERON BELLCRANK I/Bx 3/8 TEIX SPAR F2 I/4PLYVIUOD I- AWMINUM MOUNT F 1 1/8 LrTI PLY BACKS UP RING SiDE SHEET SPLICE 1/2 BALSA BC7IrON 3/4 BALSA SLOCK RING 7IA FOR NYLON SGREVVS 1/2 BLOCKSFP 1I/8PLYWCOD LG FILL 1/16 SHEET WEBS SIG 2 18 AWM BLANK 1 BLOCK PANTS TOP 4-40 FH SCREWS INTO TNUTS IN 1/4 PLY3/16 BALSA OUTBOARD LG MOUNT I/B Ply WCOD INBOARD WALLS ---- 7 R FROM I/4TO ZERO T-NUTS FOR SCREWS BALSA WING TIP DOUBLED I/B BALSA LEADING EDGE BUTT JOINTS OF 3/32 BALSA SKIN AILERON BEARING L4 WHEEL ON 1/16 MUSIC WIRE /850 STRINGERS 2 EACH SIDE 3/32 BOTTOM SHEET CROSS GRAIN ON 3/1650 LONGEFUNS I/B SHEET BALSA SIDES LOWER TD IS UPPER SIDES I/8X 3/B BOTTOM STRINGERS TAPER TO REAR I/B X 1/4 HARD BALSA TOP-BOTTOM SPAR CAPS 3/32BALSA RIBS I/B MED HARD SPAR HALF NOTCH OVERALLRIBS what build next decision made de velop aerobatic model RCnot FAI style flying aerobatic ship would per form like its full-size counterparts should able Aresti-type flying have smoker forvisual effects doing air-show-type flyingon weekends Super Akro Chips born After caine called Dusty little larger Chips some slight changes force arrangement Inevitably led best aerobatic machine flying today 1980 World Champion Laser cant improve something close perfection already wrote Bob Morrison Repla-Tech purchased book aerobatic airplanes RS-5000 set color pictures taken Laser World Champs Ceske Budejovice Czechoslovakia 1978 mate rial used basis forthe model ofthe Laser presented planning entering model Sport Scale competition just like build fly Scale models fun weekends suggest obtain mate rials Repla-Tech 48500 McKenzie Hwy Vida OR 97488 pics three-views used presentation book model Sport Scale contests models first contest Houston TX Manned Spacecraft Center RC Club Scale Rally October 31 November 1 1981 frontof some very strict judges Laser took first place nosing Out some fine Scale models soit obviously has po tentialtobe awinnerin competitions Ontheother hand build fly just enjoyment will find construction model un complicated average kit sport flying winter day home town Victoria TX 450 sunny light variable winds model first took air arrived field about 815 am unloaded model gear About 10 minutes later good buddy photographer fellow modeler Leon Folse arrived equipment took about 30 minutes get engine ad justed running just right no problem smoker cowl screwed both tanks fuel smoker topped off fired up taxied out lined up Pushed throttle against firewall fed littie right rudder about 100 ft off itself Made shallow right climbing turn No trim needed straight flight back Next made 1800 turn tried roll little slow getting around Made turn back kicked smoker did inside loop tracked correction Chopped smoker made turn flipped smoker again did Cuban 8 no wind smoke hanging good grinning 26 Model Aviation wing panels being assembled rear top sneeting gieo pinned Note tiP Ji95 wie-in snim under center section tapered blocks positioned midway half TSF 8SF B 02 TEUTOPLT*40410100 00 TOI sF-Fl F5A 4-0100p VS/Cr Fl1000006 ES0000F0*0F0IiI Fl4050*FTS00 78SF500 TTOLOTC0000S 1640400-4ASFR 2OO IC 00000 2048 03003 02 Coso3000030CAW.0kT000 4 00T 004004 snap thrill time Ah joy second flight model did Lomcevak smoker going quite sight did inverted flight fullpower hammerhead four inside consecutive snaps full power outside snap reverse knifeedge vertical climbing rollall smoker going Two flights put morning must say real joy fly smoker gives added dimension tried tail slide entered beautifully lack finesse sticks did allow complete maneu ver Im gonna practice 40 moves plane just about scale speed Vertical maneuvers good feel no need larger engine thats thing should enough room up front fit Study pians reading structions should have problem building off-the-shelf model supplies Construction Select balsa carefully model will turn out rightweightforgood aerobatics Heres trick thats useful models check sheets balsa will find will balance heavy end good rule thumb littie catch saying re member isfrontand center Always puttheheavy ear ear Went straight Out cut off landing no problem end toward front fuselage and/or smoker made turn dove little started aileron links put next hole center wing smoke did knife-edge across field Ive horn little throw tanks never model fly well test flight filled another flight Engine running pushed wing has built order complete After knife-edge turned downwind stick forward K&B 40 started sing- fuselage would good place start throttle eased back Made turn ing As accelerated smoker kicked construction parts full-size difinal settled near-perfect landing rolled about 50 feet moresmoke pouring out mensions can taken directly plans could have left wheel pants takeoff runway pulled up 450 did inside number ways make ribs 1 w STASILIZELEVATOR LB SEOCO1AABLBOVW _________________w __Lw LEFT PANEL -J 0 -J ci VPSAVONALSAz IIZIP__a w ____-N 0CO -J LA 0 QY ______ ___ __CZiZIZiiz /PABOULASER ZOO OARER November 1982 27 construction has b reuy ror puooing riniuncanopy maseu protection built competition get scale documentation Repla-Tech International make tracings ribs 2 use carbon paper over balsa direct transfer 3 use root tip ribs 10 blanks balsa stacked carving latter method put tip rib outside end stack root rib between first second pieces use Y16 ply patterns root tip ribs carving way spar pieces cut same piece straight-grained balsa ensure uniformity Pin piece hard alsa over plans shown spar cap Glue spar rear edge slots up keeping 900 workbench Check fit rib trim necessary Pin over plans shown 6 square jig straight piece inside piece leading edge Check-fit rib again OK glue place pin ning securely jig Cut sheet Y x 3 x 31 medium C-grain balsa half along length trailing edge sheets Glue piece 31 balsa edge of sheets 900 angle Note side view fuselage drawing shows root rib also rib *8 wing plan Glue trailing edge sheet rear rib firmly butting firmly against Check-fit piece hard alsa top spar cap has fit flush ribs Glue place fitted Lay piece medium A-grain Y32 sheet balsa over ribs front spar Sand angle edge fits -in leading edge piece Mark excess over rear edge spar trim off Glue pin sheet place making sure ribs still pinned down firmly 3/16-in jig use slower drying cabinet-type glue over ribs model-type cement along leading edge dope-type finish employed model 28 Model Aviation lIe UdbiL iueiaye P preuy weii uriuerway nere dOle /8 sneet ror pushrod exit Wing behind still needs center sheeting DOLLOITI stringer smuer tdflN Vs r ilfeWdil 0110 74lll 111011 have glued place Note T-pins easy-on-finger pushing Mere inc anoing gear ueing ilUCO 10-YIP ply i lie IUCI narrnaireauy rids installed has engine/mount fitting 115 pic snuws ill pora fit 5LCP5 rl 00110 lI1 Lilt d 0111 5CISLIUIi LP polyethylene sheet will separate wing fuselage Shes really beginning take shape now major components place Cockpit inside carved /s canopy Note shape being carved rear cockpit Fuselage side piece TSF above wing has rough-carved Cutthe aileron crank plate Ply mount crank Cut fairleads pushrod 1/16 ply pushrods made /16-in copper-coated weldingrodit doesnt rust solders quite well bends easily made Make bend aileron crank slip crank slide through holes ribs slipping fairleads go glue aileron crank plate ot cutouts ribs 6 & 7 Cut glue /32 x strips ribs Dont sheet cen ter section time glue has driedon panels unpin workbench use inside flush door assemble panels full wing doors flat straight pins push easily Draw straight line 6 ft long about 6 edge long side Draw line 900 6-ft line its center Draw two lines 900 long line spaced 29 center line pin tip jigs lines Place scrap piece /32 sheet center line crossed long line Make sure lines jigs match long center line builds proper tip washout wing Pin panels down center section lining up rear edge spar over long line mark tip jig Place 9/16-in shim under trailing edge center section pin down About halfway out panel trailing edge shim assure straight trailing edge top sheeting glued Note pic tures wing being assembled Epoxy ply joiners spar ply piece RB trailing edge Choose matching sheets /32 balsa top sheeting orderto have bal anced wing keep having add lot weight tip Fit trim top sheeting ac cording drawing right panel very careful gluing top sheeting wing just about impossible twist untwist once sheeting place Dont sheet center section over leading edge yet sheeting glue has thoroughly dried remove wing board turn over pin down after removing jigs board Epoxy ply IA ribs inside #1 ribs flush bottom curve Sheet bottom center section behind spar Glue i/ balsa webs between ribs leading edge trailing edge sheet Turn wing over Epoxy plate place over ribs 1 Sand ling edge flush top sheeting Pin panel down bench along trailing edge over wax paper poly sheet Take trailing edge stock check-fit -in trailing edge Sand needed tight fit cut proper angle center sec tion glue pin wing Repeat pro cedure other panel Using long straight edge trim trailing edge stock shown plans Sand trailing edge makes smooth transition wing sheeting Layout aile rons ball-point pen cut away Sand angle leading edge ailerons shown rib #8 wing drawing Sand -in leading edge piece flush sheeting Cut piece -in sheet little wider leading edge glue wing complete i/4.in.thick leading edge method laminating leading edge has three positive results stronger one-piece leading edge less susceptible warping easier sand proper shape due glue joint acting guide Glue t tips dont glue portion makes up aileron mass balance Sand tips shape around tip rib cut off aileron mass balance bal ance glued pinned toothpicks aileron Fuselage have access x 48 sheets balsa makes job fuselage side fabrica tion little easier glue two sheets x 36 together form six-inch sheets three times sidejointto made follows Cut two 6 x 8 pieces ofthe sheets Make dovetail joint end x 36 sheets shown side view fuselage plans make matching joint two 6 x 8 pieces Glue together basic sides Lay out thrust line sheet ball point pen use reference point fully laying out side Basically straight lines Refer isometric sketch ar rows side view layout made layout completed cut side out use pattern make another Cut doublers t glue sides Glue /i6 sq longerons side cut cabin section sides away set aside time being Pin sides over top view rear landing gear plate tail post Slide former down its place pin Use 900 triangle make sure sides square work surface cyanoacrylate glues come handy right After formers glued place top onerons glued cut outs Pull top -in sides Thin 1/54 ply pieces FC RC glued epoxy form cowlA good sanding job will givethis kind appearance nose blockand shape Two layers FC appliedply cowl sides fair nicely cowling top November 198229 Ille V4Ifl tranyuar UUW UULIFIU pIVtVb Ildv U~II jiuu havethe 1/ x 1/4 rear strips Note maple blocks nylon wing bolts Ply cowl formers Cl C2 glued place rear 1/ax 1/4 strip sanded taper vent hole cut engine bay forward Cl stabilizer mounts right behind former F-7 glue flush former angle Glue t filler pieces place shown side top views fuselage rear Install tubing Sullivan cable pushrod GRC-S using sandpaper wrapped around -in dowel forthe hole inthe balsa sheet exit point Cut turtledeck sides TD including slot stabilizer medium light a Unpin fuselage plans Cut BSF fuselage side fairings a glue place Gluethe tringer BSF tothetail post along top edge fuselage side Glue turtledeck sides place clamping clothespin rear bring sides together over tail post Glue /32 balsa bottom sheeting place dry sand flush sides Mark cen ter line bottom sheeting behind LGP tail postalso two lines -in side extending LGP 3 behind F5 Glue s stringers place lines sand center taper 3 hind F-S tail post Check-fit /i ply LGP Trim doublers needed plate fits flush sides Epoxy place Lay out firewall center thrust lines Place engine mount overthese andlayoutthe bolt holes going use solid bolt method mounting drill holes put flat washer bolt push through firewall holes rear Cut three piece 040 music wire about inch long making slight bend middle solder head slots Install engine mount tighten nuts mount snug against firewall Smear 5mm epoxy liberally over bolt heads washers wire method has worked well models has advantage com pletely fuel-proofing engine compartment rest fuselage epoxying done later Glue firewall place epoxy Glue /i ply tank floor place between firewall F-3 Assemble SS-8 fuel tank RST-6 smoker tank leave tubing long enough pass firewall about inch extending engine compartment use three-tube system tanks pluggingthe fill tube after fill ing leaving vent open facingthe prop blast slight pressure tank has always given good engine runs attitude smoker tank tubing tee made stalled pressure tubing behind valve tube run front cowl used fill smoker tank valve closed keep flooding crankcase smoke oil line plugged along vent line after tank filled Plug -in plastic caps come tubing purchased rolls may able get heating plumbing air-conditioning dealer Install throttle pushrod smoker valve pushrod tubing time using cabletype pushrods Glue -in triangle pieces F-l F-3 Cut slot right fuselage side clear engine cylinder install engine Pack foam rubber around tanks glue -in top bottom forward blocks place Cut landing gear Sig 2 x 18 x /32 aluminum landing gear blank Drill axle mounting holes bend according pat tern fairing block covers gear held 4-40 bolt tapped cen ter landing gear Place gear over LGP square up Mark mounting holes drill through LGP install blind nuts lockwith dab epoxy Glue FP- 1 FP-2 ply pieces place Glue rear wing holddown plate re cesses doublers D-2 Cut aple blocks size epoxy place shown top side views Sand wing center section leading trailing edges until good fit obtained fuselage wing saddle Glue ply piece WP wing trailing edge Center wing saddle pin down Measure tail post tip shift wing until square fuselage Drill mounting holes down through wing maple blocks Remove wing tap blocks -20 Glue bottom front center section sheeting wing Run -in drill through ply plate bottom sheeting Glue top center section sheeting wing runthe -indrillthroughthis sheetfromthebot tom up Bolt wing place fuselage Lay some poly Saran Wrap over wing pin formers F3A F5A place Glue triangle top fuselage side pieces Continued page 113 30 Model Aviation Cheek cowl bumps nave nssea ana sanaea Nose snape aria position main cowl Author works foam avoid dings nemuvanie SeUtluri 01 LUWI lidS UCil LUL away ailuilly ya lialil blocks fitted bottom stringers glued sanded OOZ H35V1 LASER t 500 orderfull-size plans Brad Shepherds Laser 200from MA will begiven free set water-transfer decals shown decal has all-yellow lettering proper size forthe model reproduced smaller magazine black background contrast What doing winter prospect long cold winter has got down let OrLine R/C kit take chill off OrLines classic World War biplanes favorite winter building project novice expert alike new Y4 scale Fairchild 22 sure provide plenty excitement its gr8ceful lines begin take shape workbench can bring back romance Immelmanns dogfights winter long two airplanes will never go out style Sopwith Pup Fokker DVII something winter Warm up OrLine Fairchild 22 Sopwith Pup Fokker DVII Wing span 98 Wing span 67/2 span 72 Wing area 1617 sq inWing area 1586 sq inWing area 1480 sq Power 2 cu Quadra r 60 90 r 60 90 $18950 $11950 $11950 ci Wi ke Cr OrLine Radio Controlled Aircraft Mfrs ox 12501 Salem Oregon 97309 phone 503 362-1606 ever saved over three dozen Joe Ott kits kits included mahogany card board sheet parts WW II shortages bass wood strips tissue glue kits may have dated 1940-1 944 built sold several Americas Hobby Center Still have eight hand Wild cat Mustang Spitfire Brewster Dauntless Stuka etc boxes area bit tattered cant swear glue good Super Jet old-timer fans inter ested would part couple would happy donate couple AMA Museum heavens sakeguys dont write ol Bill Keiths address Box 135 Division St RD No 2 Galway NY 12074 doubt hell able answer everyone wheres sporting blood Correction recent column spoke flying Cessna 120 flaps own ers pilots chide us politely 140 Both basically similar al though electrics other stuff improved 140 flaps added remember having two bad mags 120 cross-country buy elec tric bit confused numbers having also flown four-place 170which flies bet ter its trike descendantswhich assumed 140 Memory plays tricks also slight time no takeoffs land ings both immortal Airmaster prewar vintage 195 impressive hunk machinery AU friendly critics agree flaps 140 did next nothing Bob Benjamins search authentic Aeronca K plans Ive swamped ad vicedo know Bob Lopshire Bob Karlsson has local use real plane nearby too Karlsson noted Scale man meet him contest might beg him bended knees Bill Winter 4426 Altura t Fairfax VA 22030 Laser Model/Shepherd Continued page 30 shown side view Pin top sides place formers F3A F5A Slip former F-4 place eyeball top see square straight glue sides formers Glue /32 sheet F-4 forward cockpit floor Glue Vs x longerons F-4 F-S Glue F5B place Glue TSF side fairings place Glue -in side sheets F-4 F5A Remove cabin section glue -in dou blers inside side sheets between F-4 F5A op longerons Glue -in sheetovertheturtledeck7/g-in behindformerF-5 Glue tab -in top sheet 2-in forward block over fuel tank Glue -in sheet over cabin section Mark center forward rear -in blocks 5bin section drill us-in holes marks dowels Cut dowels length Hot Stuff top blocks Place cabin section back wing Pin down drill holes 4-40 FR bolts through middle dowels Remove cabin section install 4-40 blind nuts under ply tabs Taper top holes dowels screw cabin section Cut former F-i Ply Mark center Continued page 116 II ~R/C GOODIES P 0 BOX 192 NUYS CA91408 AIR213 764-1490FO 110 CAPITAL MODELS READY-TO-FLY 40 61 1Reg $15995SPAN SPECIAL $13995I $65OShipI Fully Built & Painted Controls Fuel Tank LG & Wheels installed Needs Ionly Engine Radio installationI 4 4Ce Reg $6950 SPECIAL $4995 POWER PACER R/C Battery Tester Charges & Cycles Tx & Rx batteries Locates bad cells & provides batt capacity readings cowTy TRAINER CRAFTAIR I57 ISPAN SHIP $650 Reg $4995 SPEC $3247 Kit available flatbottom semmsym Imetrical wing 2 4 Ch 19 40 Engine Calif add Sales Tax No CODs Brochure 60m US $170 Foreign 4 1/2% Surcharge VISA Visa Master Card November 1982 113 cam erty 25 cuin Engine wei9ht 4 lb 6 oz So lid state ignition Roller bearing flywheel Ball bearing rear Hemi-head chamber Schneurle ported 2 pc con rodbearings Chrome plated cylinder Magnesium case Balanced crank Pyramid reed intake Built-in choke Hem ht 725 $27900 retail Wi Ith Shaft center widest point 313 Total Width 525 Mounting plate prop 60 See local hobby shop Hell order stock CONTEMPO HOBBY PRODUCTS 11611 CANTARA ST H HOLLYWOOD CA 91605 division Con tempo Enterprises lines on front blocks Line up F-i glue place Cut canopy Sig 16 universal stock canopy Place canopy posi tion cabin section mark around top -in sheet Cut female pattern F-4 shown plans use shape turtledeck directly behind canopy Roughly cutout cockpit -in top sheet Shape theturtledeckfirstwith aknife andthenwith 100grit paper block Now place canopy cabin carve sand until have good fit Trim Out cockpit until about -in around inside canopy Remove cabin section unbolt wing bolt cabin section back Glue ertical strip front edge BSF Refer side view measure cowl outline mark fuselage sides out lines Cut glue -in triangle stock inside lines wide side glued fuse lage Note cross sections F-2 F-3 Cut C-i C-2 pieces /16 ply glue place Cut side away F-I C-l air venting taper trip Fair -in triangle formers Note bottom cowl section F-3 Cut four cowl pieces FC As ply section cowl doubled Check-fit cowl pinning place over F-i halfway over C-2 totally covering -in triangle outline Trim necessary good snug fit Epoxy fuselage sides inside cowl fuel-proof Epoxy inside cowl FC put place pin around Dont put both C-is engine side yet will glued inside cowl after cut off Cut two RC pieces /64 ply Check-fit trim needed Epoxy inside glue place over C-2 -in trian gle vertical poxy inside other FC pieces put overthe FC pieces already glued fuselage Use rubberbands around fuselage help hold snug existing cowl pin around edges cowl has dried sand FC pieces square F-i Rough-cut -in nose block glue F-i Using 100-grit paper block carefully sand top bottom blocks nose shape fairing smoothly ply cowl Take one-inch block little larger cowl bump cut side angle see Step i fuselage drawing cut outline rough shape Step 2 Using piece 80-grit paper wrapped around 4-oz dope bottle similarsized cylinder carefully sand inside con tinue trial-fitting ply cowl Step 3 good fit obtained cut sand outside rough shape Step 4 glue position per side view fuselage Sand bumps until fair smoothly cowling Any imper Tail surfaces Cut -in slot turtledeck top block forward fin goes using straightedge line up fuselage center line Bolt wing fit stab slot turtledeck sides Line up stab parallel wing rearview square fuselage top view Glue stab place glue finusing 900 angles made scrap balsa keep fin square stab wing drying elevator connecting bar made s tubing 332-in music wire Solder music wire holes tubing Recess elevators tubing goes Pin eleva tors down workbench proper distance apart butting against straightedge Fit bar elevators mark places music wire enters elevator Drill holes elevators pin back down making sure Epoxy bar place always cut slots fit hinges surfaces before finishing put model can done now hinges will glued after model completely finished Detailing Williams Bros 2-in sport pilot used few modifications try make look like Leo Loudenslager point nose sanded off slightly talc dope mixed stiff putty modify hair mixture will soften plastic careful takes about two days harden again globbed mixture head using some photos Leo guide dry coping saw blade raked across putty simulate hair painted hair yellow Pactra Namel followed mixture flat brown yellow lighten brown After dry saw blade used againto sim ulate strands hair takes little fiddlin results pretty good shirt painted flat red Leo saw pilot figure Sher man laughed Jim Roberts said looked just like himso guess its close enough Sport Scale inside cockpit sanded smooth /32 sheet instrument panel glued place cockpit painted Glue block balsa bottom pilot figure trim shape pilot Place pilot cockpit trim bottom block until head just clears canopy Paint block red match pilots shirt glue Glue canopy being careful smear glue Mask off can opy keep clean finishing model 116 Model Aviation fections bumps can smoothed putty before covering finishing Using Zona Saw cut cowl cabin section separation remove cabin Mark off portion front cowl re movable over engine Use Zona Saw back removed cut portion away Glue Vs ply hold-down tabs place Drill -in holes cowling dowels glue dowels Hot Stuff Drill through dowels ply tabs mount blind nuts under tabs Glue other C- 1 inside cowl flush rear edge shown top view Make smoker valve shown draw ing buy commercial valve Mount ply wood epoxy itto inside cowl per top view combination smoke chamber tail pipe muffler fabricatedfrom light steel tub ing -in soft brass tubing 12-gauge sheet metal flange stuffed steel wool cap ped 26-gauge sheet holes drilled order have enough heat vaporize fluid its necessary insulate whole cham ber six seven wrapped thicknesses light fiberglass cloth Make covers insulation tin can Bend sheetmetal overthe fiber glass solder edges holding place twisted wire until solder hardens genera tor works very nicely using Texaco almag fluid smoke dense has good hang time Cover engine mount bolts short pieces fuel tubing brush slow-driving epoxy inside engine compartment fuelproof model presented has doped finish Silk used bottom half fuselage wing remainder model covered lightweight silkspan Aerogloss metallic blue very close color Leos Laser Yellow trim used adding white until correct shade attained match decals best way found match decal color cut out 716-in-wide LASER 200 de cal attach itto blue-doped wheel pants proper placethen kept experimenting yellow until matched decal color dab blue may have added yellow really good match star sizes shown fuselage draw ing fuselage stars masked off doped white pattern ofthe wing stars made Y16 ply stars cut Sig white decal sheet decals come plans given two coats clear polyurethane after have dried thoroughly tail feather bracing made 045 music wire #26 solder lugs soldered ends held 2-56 bolts simulated rib stitching fin rudder stab elevators ailerons made Manila paper file folder material pizza cutter rolled over about 3/is-in intervals toindentitthenitiscutinto5/32-in strips doped surfaces effect good 15 feet Most folks have own favorite way stalling radio gear Mine shown plans ship balanced CG shown add ing weight build bird believe will give hours truly enjoyable aerobatic flyingIf go full route detailing will com petitive other Sport Scale models vari ous meets See Nats General Con fin ued page 33 competition some events such RC Pattern running five consecutive days World Championships involve much Natsin number people days hours Consider Nats competition begins November 1982 117 4 ft MODEL ENGINEHEAT SHRINKWING SADDLE FUEL LINETUBINGFOAM TAPE 1/16 dia Special formulated high grade Ideal sleeving plugs conblack neoprene tubing glow nectors Shrinkable using gas oil diesel fuels soldering iron cigarette lighter Part No 200-249$149Part No200-250$ 98 Kraft Systems 450 W California Ave Vista CA 920830 Division Carlisle Corporation Pressure sensitive adhesive side 1/16 x 4 Easy apply Makes neat looking wing fuselage fit Can also used seal access hatches cowlings etc Part No 200-251$159 TAPER ACETM Rib Profiler makes tapered eliptical wing design easy Works faster computer Adjusts locks size rib instantly Curve plates provided draw 3 different full symmetrical 3 different semi-symmetrical airfoils Flat bottom airfoils can also drawn Send check M 0 $2495 Jim Denaro Model Products 543 Bedford Street Concord MA 01742
Edition: Model Aviation - 1982/11
Page Numbers: 22, 23, 24, 25, 26, 27, 28, 29, 30, 113, 116, 117
NO OCR TEXT NO OCR TEXT aircraft coached another Jim decided build own Laser took air 1978 very little differ ence two aircraft Jims has shorter land ing gear slightly different cowl different paint scheme both planes basically metallic blue light yellow trim trim stars Jims different Leos Both Lasers will represent United States World Championships 1982 Europe Leo took another first Unlimited Jim came fourth National Aerobatic Champion ships Sherman TX October last year Henry Haigh flying modified Stehens called Super Star much same Lasers will also World Champs runner-up Leo Nationals Permit take short look back some what prophetic statement made Don Berliner 1973 article aerobatic airplanes talking about Stephens Akro days something going come alongto knock Pitts off its lofty perch day upon us would appear three out top five Nats flying versions original Stephens So much has written about exploits Leo Laser couldnt add anything new substance However Ihadthe pleasure ofmeet ing Leo Jim during 1981 National Cham pionships Sherman found out both fly RC During low-ceiling weather full-size planes grounded both flew model taken modi fied Stephens smoker kicks Super Akro ChipsJune 1981 MA dont know ever plan entering competition RC keep eye model few years back mulling over ~ouu viuw urn Ln uri wr tail feathers045 music wire Landing gear attachment single tapped hole middle holds terminating #26 solder lugs held 2-56 bolts fairing block Note slight toe-in wheels Lots plumbing needed engine companment Tur TIIIIflyVflflW wing tip tne guiae aio piioi perlumlirig preurnalun both fuel smoker tanks plus feeding engine smoker aerobatics maneuvers Note rib stitching ailerons mass balance 24 Model Aviation underside wing center section showing eron servo installed hooked up Attention detail pays off Just width enough four-across servos Pushrods cable type Receiver batteries need well padded MY WI1ILLJjINb V ANUIM V lE-C tLII j IVjY I-tlNLr/ IILL Ht IPLIW BACK AFThP I6YRS AIRR71Y TO SOLO THE 15a-WTEP AAHLLBET HETALbDTI-E ME RIGHTOUTOF OF FLOAT r TOGLIAR - NE SWTF R GRT DOWNTO THE COCKP T I-fE FLYING NI 4k HEASNT r THE CUBE-f THEGROI*JD DDrYLP NEDDP DO / JULY22 2j 14HOURSYOU ~7I/\1/Ax HAVE rwOArn-fougAgjo 1-4 D BALSA FIN AND RUDDER 1/2 BALSA TJRTLE DEC TO FIN POST1/4 50 FIN POST iili / 3/32 WIRE INTO ________3/16 TUBING FOR ______________________________ELEVATOR TIE 3/32 SHEET PILOT DECK /2 BALSA COWL DECK I/B PLY AlL SERVO MOUNT 4-40 SCREWS HOLD REMOVE-ABLE COWL/8 PLYWCOD RERJFTSF FRONT AND BACK AT CENTER SECTION Fl INCUT F7 7 1/4 HARD BALSA STABILIZER AND ELEVAlOR / 3/Bx 11/2 T EDGE STOCK I/S OOfl PLATE MOUNTS AILERON BELLCRANK I/Bx 3/8 TEIX SPAR F2 I/4PLYVIUOD I- AWMINUM MOUNT F 1 1/8 LrTI PLY BACKS UP RING SiDE SHEET SPLICE 1/2 BALSA BC7IrON 3/4 BALSA SLOCK RING 7IA FOR NYLON SGREVVS 1/2 BLOCKSFP 1I/8PLYWCOD LG FILL 1/16 SHEET WEBS SIG 2 18 AWM BLANK 1 BLOCK PANTS TOP 4-40 FH SCREWS INTO TNUTS IN 1/4 PLY3/16 BALSA OUTBOARD LG MOUNT I/B Ply WCOD INBOARD WALLS ---- 7 R FROM I/4TO ZERO T-NUTS FOR SCREWS BALSA WING TIP DOUBLED I/B BALSA LEADING EDGE BUTT JOINTS OF 3/32 BALSA SKIN AILERON BEARING L4 WHEEL ON 1/16 MUSIC WIRE /850 STRINGERS 2 EACH SIDE 3/32 BOTTOM SHEET CROSS GRAIN ON 3/1650 LONGEFUNS I/B SHEET BALSA SIDES LOWER TD IS UPPER SIDES I/8X 3/B BOTTOM STRINGERS TAPER TO REAR I/B X 1/4 HARD BALSA TOP-BOTTOM SPAR CAPS 3/32BALSA RIBS I/B MED HARD SPAR HALF NOTCH OVERALLRIBS what build next decision made de velop aerobatic model RCnot FAI style flying aerobatic ship would per form like its full-size counterparts should able Aresti-type flying have smoker forvisual effects doing air-show-type flyingon weekends Super Akro Chips born After caine called Dusty little larger Chips some slight changes force arrangement Inevitably led best aerobatic machine flying today 1980 World Champion Laser cant improve something close perfection already wrote Bob Morrison Repla-Tech purchased book aerobatic airplanes RS-5000 set color pictures taken Laser World Champs Ceske Budejovice Czechoslovakia 1978 mate rial used basis forthe model ofthe Laser presented planning entering model Sport Scale competition just like build fly Scale models fun weekends suggest obtain mate rials Repla-Tech 48500 McKenzie Hwy Vida OR 97488 pics three-views used presentation book model Sport Scale contests models first contest Houston TX Manned Spacecraft Center RC Club Scale Rally October 31 November 1 1981 frontof some very strict judges Laser took first place nosing Out some fine Scale models soit obviously has po tentialtobe awinnerin competitions Ontheother hand build fly just enjoyment will find construction model un complicated average kit sport flying winter day home town Victoria TX 450 sunny light variable winds model first took air arrived field about 815 am unloaded model gear About 10 minutes later good buddy photographer fellow modeler Leon Folse arrived equipment took about 30 minutes get engine ad justed running just right no problem smoker cowl screwed both tanks fuel smoker topped off fired up taxied out lined up Pushed throttle against firewall fed littie right rudder about 100 ft off itself Made shallow right climbing turn No trim needed straight flight back Next made 1800 turn tried roll little slow getting around Made turn back kicked smoker did inside loop tracked correction Chopped smoker made turn flipped smoker again did Cuban 8 no wind smoke hanging good grinning 26 Model Aviation wing panels being assembled rear top sneeting gieo pinned Note tiP Ji95 wie-in snim under center section tapered blocks positioned midway half TSF 8SF B 02 TEUTOPLT*40410100 00 TOI sF-Fl F5A 4-0100p VS/Cr Fl1000006 ES0000F0*0F0IiI Fl4050*FTS00 78SF500 TTOLOTC0000S 1640400-4ASFR 2OO IC 00000 2048 03003 02 Coso3000030CAW.0kT000 4 00T 004004 snap thrill time Ah joy second flight model did Lomcevak smoker going quite sight did inverted flight fullpower hammerhead four inside consecutive snaps full power outside snap reverse knifeedge vertical climbing rollall smoker going Two flights put morning must say real joy fly smoker gives added dimension tried tail slide entered beautifully lack finesse sticks did allow complete maneu ver Im gonna practice 40 moves plane just about scale speed Vertical maneuvers good feel no need larger engine thats thing should enough room up front fit Study pians reading structions should have problem building off-the-shelf model supplies Construction Select balsa carefully model will turn out rightweightforgood aerobatics Heres trick thats useful models check sheets balsa will find will balance heavy end good rule thumb littie catch saying re member isfrontand center Always puttheheavy ear ear Went straight Out cut off landing no problem end toward front fuselage and/or smoker made turn dove little started aileron links put next hole center wing smoke did knife-edge across field Ive horn little throw tanks never model fly well test flight filled another flight Engine running pushed wing has built order complete After knife-edge turned downwind stick forward K&B 40 started sing- fuselage would good place start throttle eased back Made turn ing As accelerated smoker kicked construction parts full-size difinal settled near-perfect landing rolled about 50 feet moresmoke pouring out mensions can taken directly plans could have left wheel pants takeoff runway pulled up 450 did inside number ways make ribs 1 w STASILIZELEVATOR LB SEOCO1AABLBOVW _________________w __Lw LEFT PANEL -J 0 -J ci VPSAVONALSAz IIZIP__a w ____-N 0CO -J LA 0 QY ______ ___ __CZiZIZiiz /PABOULASER ZOO OARER November 1982 27 construction has b reuy ror puooing riniuncanopy maseu protection built competition get scale documentation Repla-Tech International make tracings ribs 2 use carbon paper over balsa direct transfer 3 use root tip ribs 10 blanks balsa stacked carving latter method put tip rib outside end stack root rib between first second pieces use Y16 ply patterns root tip ribs carving way spar pieces cut same piece straight-grained balsa ensure uniformity Pin piece hard alsa over plans shown spar cap Glue spar rear edge slots up keeping 900 workbench Check fit rib trim necessary Pin over plans shown 6 square jig straight piece inside piece leading edge Check-fit rib again OK glue place pin ning securely jig Cut sheet Y x 3 x 31 medium C-grain balsa half along length trailing edge sheets Glue piece 31 balsa edge of sheets 900 angle Note side view fuselage drawing shows root rib also rib *8 wing plan Glue trailing edge sheet rear rib firmly butting firmly against Check-fit piece hard alsa top spar cap has fit flush ribs Glue place fitted Lay piece medium A-grain Y32 sheet balsa over ribs front spar Sand angle edge fits -in leading edge piece Mark excess over rear edge spar trim off Glue pin sheet place making sure ribs still pinned down firmly 3/16-in jig use slower drying cabinet-type glue over ribs model-type cement along leading edge dope-type finish employed model 28 Model Aviation lIe UdbiL iueiaye P preuy weii uriuerway nere dOle /8 sneet ror pushrod exit Wing behind still needs center sheeting DOLLOITI stringer smuer tdflN Vs r ilfeWdil 0110 74lll 111011 have glued place Note T-pins easy-on-finger pushing Mere inc anoing gear ueing ilUCO 10-YIP ply i lie IUCI narrnaireauy rids installed has engine/mount fitting 115 pic snuws ill pora fit 5LCP5 rl 00110 lI1 Lilt d 0111 5CISLIUIi LP polyethylene sheet will separate wing fuselage Shes really beginning take shape now major components place Cockpit inside carved /s canopy Note shape being carved rear cockpit Fuselage side piece TSF above wing has rough-carved Cutthe aileron crank plate Ply mount crank Cut fairleads pushrod 1/16 ply pushrods made /16-in copper-coated weldingrodit doesnt rust solders quite well bends easily made Make bend aileron crank slip crank slide through holes ribs slipping fairleads go glue aileron crank plate ot cutouts ribs 6 & 7 Cut glue /32 x strips ribs Dont sheet cen ter section time glue has driedon panels unpin workbench use inside flush door assemble panels full wing doors flat straight pins push easily Draw straight line 6 ft long about 6 edge long side Draw line 900 6-ft line its center Draw two lines 900 long line spaced 29 center line pin tip jigs lines Place scrap piece /32 sheet center line crossed long line Make sure lines jigs match long center line builds proper tip washout wing Pin panels down center section lining up rear edge spar over long line mark tip jig Place 9/16-in shim under trailing edge center section pin down About halfway out panel trailing edge shim assure straight trailing edge top sheeting glued Note pic tures wing being assembled Epoxy ply joiners spar ply piece RB trailing edge Choose matching sheets /32 balsa top sheeting orderto have bal anced wing keep having add lot weight tip Fit trim top sheeting ac cording drawing right panel very careful gluing top sheeting wing just about impossible twist untwist once sheeting place Dont sheet center section over leading edge yet sheeting glue has thoroughly dried remove wing board turn over pin down after removing jigs board Epoxy ply IA ribs inside #1 ribs flush bottom curve Sheet bottom center section behind spar Glue i/ balsa webs between ribs leading edge trailing edge sheet Turn wing over Epoxy plate place over ribs 1 Sand ling edge flush top sheeting Pin panel down bench along trailing edge over wax paper poly sheet Take trailing edge stock check-fit -in trailing edge Sand needed tight fit cut proper angle center sec tion glue pin wing Repeat pro cedure other panel Using long straight edge trim trailing edge stock shown plans Sand trailing edge makes smooth transition wing sheeting Layout aile rons ball-point pen cut away Sand angle leading edge ailerons shown rib #8 wing drawing Sand -in leading edge piece flush sheeting Cut piece -in sheet little wider leading edge glue wing complete i/4.in.thick leading edge method laminating leading edge has three positive results stronger one-piece leading edge less susceptible warping easier sand proper shape due glue joint acting guide Glue t tips dont glue portion makes up aileron mass balance Sand tips shape around tip rib cut off aileron mass balance bal ance glued pinned toothpicks aileron Fuselage have access x 48 sheets balsa makes job fuselage side fabrica tion little easier glue two sheets x 36 together form six-inch sheets three times sidejointto made follows Cut two 6 x 8 pieces ofthe sheets Make dovetail joint end x 36 sheets shown side view fuselage plans make matching joint two 6 x 8 pieces Glue together basic sides Lay out thrust line sheet ball point pen use reference point fully laying out side Basically straight lines Refer isometric sketch ar rows side view layout made layout completed cut side out use pattern make another Cut doublers t glue sides Glue /i6 sq longerons side cut cabin section sides away set aside time being Pin sides over top view rear landing gear plate tail post Slide former down its place pin Use 900 triangle make sure sides square work surface cyanoacrylate glues come handy right After formers glued place top onerons glued cut outs Pull top -in sides Thin 1/54 ply pieces FC RC glued epoxy form cowlA good sanding job will givethis kind appearance nose blockand shape Two layers FC appliedply cowl sides fair nicely cowling top November 198229 Ille V4Ifl tranyuar UUW UULIFIU pIVtVb Ildv U~II jiuu havethe 1/ x 1/4 rear strips Note maple blocks nylon wing bolts Ply cowl formers Cl C2 glued place rear 1/ax 1/4 strip sanded taper vent hole cut engine bay forward Cl stabilizer mounts right behind former F-7 glue flush former angle Glue t filler pieces place shown side top views fuselage rear Install tubing Sullivan cable pushrod GRC-S using sandpaper wrapped around -in dowel forthe hole inthe balsa sheet exit point Cut turtledeck sides TD including slot stabilizer medium light a Unpin fuselage plans Cut BSF fuselage side fairings a glue place Gluethe tringer BSF tothetail post along top edge fuselage side Glue turtledeck sides place clamping clothespin rear bring sides together over tail post Glue /32 balsa bottom sheeting place dry sand flush sides Mark cen ter line bottom sheeting behind LGP tail postalso two lines -in side extending LGP 3 behind F5 Glue s stringers place lines sand center taper 3 hind F-S tail post Check-fit /i ply LGP Trim doublers needed plate fits flush sides Epoxy place Lay out firewall center thrust lines Place engine mount overthese andlayoutthe bolt holes going use solid bolt method mounting drill holes put flat washer bolt push through firewall holes rear Cut three piece 040 music wire about inch long making slight bend middle solder head slots Install engine mount tighten nuts mount snug against firewall Smear 5mm epoxy liberally over bolt heads washers wire method has worked well models has advantage com pletely fuel-proofing engine compartment rest fuselage epoxying done later Glue firewall place epoxy Glue /i ply tank floor place between firewall F-3 Assemble SS-8 fuel tank RST-6 smoker tank leave tubing long enough pass firewall about inch extending engine compartment use three-tube system tanks pluggingthe fill tube after fill ing leaving vent open facingthe prop blast slight pressure tank has always given good engine runs attitude smoker tank tubing tee made stalled pressure tubing behind valve tube run front cowl used fill smoker tank valve closed keep flooding crankcase smoke oil line plugged along vent line after tank filled Plug -in plastic caps come tubing purchased rolls may able get heating plumbing air-conditioning dealer Install throttle pushrod smoker valve pushrod tubing time using cabletype pushrods Glue -in triangle pieces F-l F-3 Cut slot right fuselage side clear engine cylinder install engine Pack foam rubber around tanks glue -in top bottom forward blocks place Cut landing gear Sig 2 x 18 x /32 aluminum landing gear blank Drill axle mounting holes bend according pat tern fairing block covers gear held 4-40 bolt tapped cen ter landing gear Place gear over LGP square up Mark mounting holes drill through LGP install blind nuts lockwith dab epoxy Glue FP- 1 FP-2 ply pieces place Glue rear wing holddown plate re cesses doublers D-2 Cut aple blocks size epoxy place shown top side views Sand wing center section leading trailing edges until good fit obtained fuselage wing saddle Glue ply piece WP wing trailing edge Center wing saddle pin down Measure tail post tip shift wing until square fuselage Drill mounting holes down through wing maple blocks Remove wing tap blocks -20 Glue bottom front center section sheeting wing Run -in drill through ply plate bottom sheeting Glue top center section sheeting wing runthe -indrillthroughthis sheetfromthebot tom up Bolt wing place fuselage Lay some poly Saran Wrap over wing pin formers F3A F5A place Glue triangle top fuselage side pieces Continued page 113 30 Model Aviation Cheek cowl bumps nave nssea ana sanaea Nose snape aria position main cowl Author works foam avoid dings nemuvanie SeUtluri 01 LUWI lidS UCil LUL away ailuilly ya lialil blocks fitted bottom stringers glued sanded OOZ H35V1 LASER t 500 orderfull-size plans Brad Shepherds Laser 200from MA will begiven free set water-transfer decals shown decal has all-yellow lettering proper size forthe model reproduced smaller magazine black background contrast What doing winter prospect long cold winter has got down let OrLine R/C kit take chill off OrLines classic World War biplanes favorite winter building project novice expert alike new Y4 scale Fairchild 22 sure provide plenty excitement its gr8ceful lines begin take shape workbench can bring back romance Immelmanns dogfights winter long two airplanes will never go out style Sopwith Pup Fokker DVII something winter Warm up OrLine Fairchild 22 Sopwith Pup Fokker DVII Wing span 98 Wing span 67/2 span 72 Wing area 1617 sq inWing area 1586 sq inWing area 1480 sq Power 2 cu Quadra r 60 90 r 60 90 $18950 $11950 $11950 ci Wi ke Cr OrLine Radio Controlled Aircraft Mfrs ox 12501 Salem Oregon 97309 phone 503 362-1606 ever saved over three dozen Joe Ott kits kits included mahogany card board sheet parts WW II shortages bass wood strips tissue glue kits may have dated 1940-1 944 built sold several Americas Hobby Center Still have eight hand Wild cat Mustang Spitfire Brewster Dauntless Stuka etc boxes area bit tattered cant swear glue good Super Jet old-timer fans inter ested would part couple would happy donate couple AMA Museum heavens sakeguys dont write ol Bill Keiths address Box 135 Division St RD No 2 Galway NY 12074 doubt hell able answer everyone wheres sporting blood Correction recent column spoke flying Cessna 120 flaps own ers pilots chide us politely 140 Both basically similar al though electrics other stuff improved 140 flaps added remember having two bad mags 120 cross-country buy elec tric bit confused numbers having also flown four-place 170which flies bet ter its trike descendantswhich assumed 140 Memory plays tricks also slight time no takeoffs land ings both immortal Airmaster prewar vintage 195 impressive hunk machinery AU friendly critics agree flaps 140 did next nothing Bob Benjamins search authentic Aeronca K plans Ive swamped ad vicedo know Bob Lopshire Bob Karlsson has local use real plane nearby too Karlsson noted Scale man meet him contest might beg him bended knees Bill Winter 4426 Altura t Fairfax VA 22030 Laser Model/Shepherd Continued page 30 shown side view Pin top sides place formers F3A F5A Slip former F-4 place eyeball top see square straight glue sides formers Glue /32 sheet F-4 forward cockpit floor Glue Vs x longerons F-4 F-S Glue F5B place Glue TSF side fairings place Glue -in side sheets F-4 F5A Remove cabin section glue -in dou blers inside side sheets between F-4 F5A op longerons Glue -in sheetovertheturtledeck7/g-in behindformerF-5 Glue tab -in top sheet 2-in forward block over fuel tank Glue -in sheet over cabin section Mark center forward rear -in blocks 5bin section drill us-in holes marks dowels Cut dowels length Hot Stuff top blocks Place cabin section back wing Pin down drill holes 4-40 FR bolts through middle dowels Remove cabin section install 4-40 blind nuts under ply tabs Taper top holes dowels screw cabin section Cut former F-i Ply Mark center Continued page 116 II ~R/C GOODIES P 0 BOX 192 NUYS CA91408 AIR213 764-1490FO 110 CAPITAL MODELS READY-TO-FLY 40 61 1Reg $15995SPAN SPECIAL $13995I $65OShipI Fully Built & Painted Controls Fuel Tank LG & Wheels installed Needs Ionly Engine Radio installationI 4 4Ce Reg $6950 SPECIAL $4995 POWER PACER R/C Battery Tester Charges & Cycles Tx & Rx batteries Locates bad cells & provides batt capacity readings cowTy TRAINER CRAFTAIR I57 ISPAN SHIP $650 Reg $4995 SPEC $3247 Kit available flatbottom semmsym Imetrical wing 2 4 Ch 19 40 Engine Calif add Sales Tax No CODs Brochure 60m US $170 Foreign 4 1/2% Surcharge VISA Visa Master Card November 1982 113 cam erty 25 cuin Engine wei9ht 4 lb 6 oz So lid state ignition Roller bearing flywheel Ball bearing rear Hemi-head chamber Schneurle ported 2 pc con rodbearings Chrome plated cylinder Magnesium case Balanced crank Pyramid reed intake Built-in choke Hem ht 725 $27900 retail Wi Ith Shaft center widest point 313 Total Width 525 Mounting plate prop 60 See local hobby shop Hell order stock CONTEMPO HOBBY PRODUCTS 11611 CANTARA ST H HOLLYWOOD CA 91605 division Con tempo Enterprises lines on front blocks Line up F-i glue place Cut canopy Sig 16 universal stock canopy Place canopy posi tion cabin section mark around top -in sheet Cut female pattern F-4 shown plans use shape turtledeck directly behind canopy Roughly cutout cockpit -in top sheet Shape theturtledeckfirstwith aknife andthenwith 100grit paper block Now place canopy cabin carve sand until have good fit Trim Out cockpit until about -in around inside canopy Remove cabin section unbolt wing bolt cabin section back Glue ertical strip front edge BSF Refer side view measure cowl outline mark fuselage sides out lines Cut glue -in triangle stock inside lines wide side glued fuse lage Note cross sections F-2 F-3 Cut C-i C-2 pieces /16 ply glue place Cut side away F-I C-l air venting taper trip Fair -in triangle formers Note bottom cowl section F-3 Cut four cowl pieces FC As ply section cowl doubled Check-fit cowl pinning place over F-i halfway over C-2 totally covering -in triangle outline Trim necessary good snug fit Epoxy fuselage sides inside cowl fuel-proof Epoxy inside cowl FC put place pin around Dont put both C-is engine side yet will glued inside cowl after cut off Cut two RC pieces /64 ply Check-fit trim needed Epoxy inside glue place over C-2 -in trian gle vertical poxy inside other FC pieces put overthe FC pieces already glued fuselage Use rubberbands around fuselage help hold snug existing cowl pin around edges cowl has dried sand FC pieces square F-i Rough-cut -in nose block glue F-i Using 100-grit paper block carefully sand top bottom blocks nose shape fairing smoothly ply cowl Take one-inch block little larger cowl bump cut side angle see Step i fuselage drawing cut outline rough shape Step 2 Using piece 80-grit paper wrapped around 4-oz dope bottle similarsized cylinder carefully sand inside con tinue trial-fitting ply cowl Step 3 good fit obtained cut sand outside rough shape Step 4 glue position per side view fuselage Sand bumps until fair smoothly cowling Any imper Tail surfaces Cut -in slot turtledeck top block forward fin goes using straightedge line up fuselage center line Bolt wing fit stab slot turtledeck sides Line up stab parallel wing rearview square fuselage top view Glue stab place glue finusing 900 angles made scrap balsa keep fin square stab wing drying elevator connecting bar made s tubing 332-in music wire Solder music wire holes tubing Recess elevators tubing goes Pin eleva tors down workbench proper distance apart butting against straightedge Fit bar elevators mark places music wire enters elevator Drill holes elevators pin back down making sure Epoxy bar place always cut slots fit hinges surfaces before finishing put model can done now hinges will glued after model completely finished Detailing Williams Bros 2-in sport pilot used few modifications try make look like Leo Loudenslager point nose sanded off slightly talc dope mixed stiff putty modify hair mixture will soften plastic careful takes about two days harden again globbed mixture head using some photos Leo guide dry coping saw blade raked across putty simulate hair painted hair yellow Pactra Namel followed mixture flat brown yellow lighten brown After dry saw blade used againto sim ulate strands hair takes little fiddlin results pretty good shirt painted flat red Leo saw pilot figure Sher man laughed Jim Roberts said looked just like himso guess its close enough Sport Scale inside cockpit sanded smooth /32 sheet instrument panel glued place cockpit painted Glue block balsa bottom pilot figure trim shape pilot Place pilot cockpit trim bottom block until head just clears canopy Paint block red match pilots shirt glue Glue canopy being careful smear glue Mask off can opy keep clean finishing model 116 Model Aviation fections bumps can smoothed putty before covering finishing Using Zona Saw cut cowl cabin section separation remove cabin Mark off portion front cowl re movable over engine Use Zona Saw back removed cut portion away Glue Vs ply hold-down tabs place Drill -in holes cowling dowels glue dowels Hot Stuff Drill through dowels ply tabs mount blind nuts under tabs Glue other C- 1 inside cowl flush rear edge shown top view Make smoker valve shown draw ing buy commercial valve Mount ply wood epoxy itto inside cowl per top view combination smoke chamber tail pipe muffler fabricatedfrom light steel tub ing -in soft brass tubing 12-gauge sheet metal flange stuffed steel wool cap ped 26-gauge sheet holes drilled order have enough heat vaporize fluid its necessary insulate whole cham ber six seven wrapped thicknesses light fiberglass cloth Make covers insulation tin can Bend sheetmetal overthe fiber glass solder edges holding place twisted wire until solder hardens genera tor works very nicely using Texaco almag fluid smoke dense has good hang time Cover engine mount bolts short pieces fuel tubing brush slow-driving epoxy inside engine compartment fuelproof model presented has doped finish Silk used bottom half fuselage wing remainder model covered lightweight silkspan Aerogloss metallic blue very close color Leos Laser Yellow trim used adding white until correct shade attained match decals best way found match decal color cut out 716-in-wide LASER 200 de cal attach itto blue-doped wheel pants proper placethen kept experimenting yellow until matched decal color dab blue may have added yellow really good match star sizes shown fuselage draw ing fuselage stars masked off doped white pattern ofthe wing stars made Y16 ply stars cut Sig white decal sheet decals come plans given two coats clear polyurethane after have dried thoroughly tail feather bracing made 045 music wire #26 solder lugs soldered ends held 2-56 bolts simulated rib stitching fin rudder stab elevators ailerons made Manila paper file folder material pizza cutter rolled over about 3/is-in intervals toindentitthenitiscutinto5/32-in strips doped surfaces effect good 15 feet Most folks have own favorite way stalling radio gear Mine shown plans ship balanced CG shown add ing weight build bird believe will give hours truly enjoyable aerobatic flyingIf go full route detailing will com petitive other Sport Scale models vari ous meets See Nats General Con fin ued page 33 competition some events such RC Pattern running five consecutive days World Championships involve much Natsin number people days hours Consider Nats competition begins November 1982 117 4 ft MODEL ENGINEHEAT SHRINKWING SADDLE FUEL LINETUBINGFOAM TAPE 1/16 dia Special formulated high grade Ideal sleeving plugs conblack neoprene tubing glow nectors Shrinkable using gas oil diesel fuels soldering iron cigarette lighter Part No 200-249$149Part No200-250$ 98 Kraft Systems 450 W California Ave Vista CA 920830 Division Carlisle Corporation Pressure sensitive adhesive side 1/16 x 4 Easy apply Makes neat looking wing fuselage fit Can also used seal access hatches cowlings etc Part No 200-251$159 TAPER ACETM Rib Profiler makes tapered eliptical wing design easy Works faster computer Adjusts locks size rib instantly Curve plates provided draw 3 different full symmetrical 3 different semi-symmetrical airfoils Flat bottom airfoils can also drawn Send check M 0 $2495 Jim Denaro Model Products 543 Bedford Street Concord MA 01742
Edition: Model Aviation - 1982/11
Page Numbers: 22, 23, 24, 25, 26, 27, 28, 29, 30, 113, 116, 117
NO OCR TEXT NO OCR TEXT aircraft coached another Jim decided build own Laser took air 1978 very little differ ence two aircraft Jims has shorter land ing gear slightly different cowl different paint scheme both planes basically metallic blue light yellow trim trim stars Jims different Leos Both Lasers will represent United States World Championships 1982 Europe Leo took another first Unlimited Jim came fourth National Aerobatic Champion ships Sherman TX October last year Henry Haigh flying modified Stehens called Super Star much same Lasers will also World Champs runner-up Leo Nationals Permit take short look back some what prophetic statement made Don Berliner 1973 article aerobatic airplanes talking about Stephens Akro days something going come alongto knock Pitts off its lofty perch day upon us would appear three out top five Nats flying versions original Stephens So much has written about exploits Leo Laser couldnt add anything new substance However Ihadthe pleasure ofmeet ing Leo Jim during 1981 National Cham pionships Sherman found out both fly RC During low-ceiling weather full-size planes grounded both flew model taken modi fied Stephens smoker kicks Super Akro ChipsJune 1981 MA dont know ever plan entering competition RC keep eye model few years back mulling over ~ouu viuw urn Ln uri wr tail feathers045 music wire Landing gear attachment single tapped hole middle holds terminating #26 solder lugs held 2-56 bolts fairing block Note slight toe-in wheels Lots plumbing needed engine companment Tur TIIIIflyVflflW wing tip tne guiae aio piioi perlumlirig preurnalun both fuel smoker tanks plus feeding engine smoker aerobatics maneuvers Note rib stitching ailerons mass balance 24 Model Aviation underside wing center section showing eron servo installed hooked up Attention detail pays off Just width enough four-across servos Pushrods cable type Receiver batteries need well padded MY WI1ILLJjINb V ANUIM V lE-C tLII j IVjY I-tlNLr/ IILL Ht IPLIW BACK AFThP I6YRS AIRR71Y TO SOLO THE 15a-WTEP AAHLLBET HETALbDTI-E ME RIGHTOUTOF OF FLOAT r TOGLIAR - NE SWTF R GRT DOWNTO THE COCKP T I-fE FLYING NI 4k HEASNT r THE CUBE-f THEGROI*JD DDrYLP NEDDP DO / JULY22 2j 14HOURSYOU ~7I/\1/Ax HAVE rwOArn-fougAgjo 1-4 D BALSA FIN AND RUDDER 1/2 BALSA TJRTLE DEC TO FIN POST1/4 50 FIN POST iili / 3/32 WIRE INTO ________3/16 TUBING FOR ______________________________ELEVATOR TIE 3/32 SHEET PILOT DECK /2 BALSA COWL DECK I/B PLY AlL SERVO MOUNT 4-40 SCREWS HOLD REMOVE-ABLE COWL/8 PLYWCOD RERJFTSF FRONT AND BACK AT CENTER SECTION Fl INCUT F7 7 1/4 HARD BALSA STABILIZER AND ELEVAlOR / 3/Bx 11/2 T EDGE STOCK I/S OOfl PLATE MOUNTS AILERON BELLCRANK I/Bx 3/8 TEIX SPAR F2 I/4PLYVIUOD I- AWMINUM MOUNT F 1 1/8 LrTI PLY BACKS UP RING SiDE SHEET SPLICE 1/2 BALSA BC7IrON 3/4 BALSA SLOCK RING 7IA FOR NYLON SGREVVS 1/2 BLOCKSFP 1I/8PLYWCOD LG FILL 1/16 SHEET WEBS SIG 2 18 AWM BLANK 1 BLOCK PANTS TOP 4-40 FH SCREWS INTO TNUTS IN 1/4 PLY3/16 BALSA OUTBOARD LG MOUNT I/B Ply WCOD INBOARD WALLS ---- 7 R FROM I/4TO ZERO T-NUTS FOR SCREWS BALSA WING TIP DOUBLED I/B BALSA LEADING EDGE BUTT JOINTS OF 3/32 BALSA SKIN AILERON BEARING L4 WHEEL ON 1/16 MUSIC WIRE /850 STRINGERS 2 EACH SIDE 3/32 BOTTOM SHEET CROSS GRAIN ON 3/1650 LONGEFUNS I/B SHEET BALSA SIDES LOWER TD IS UPPER SIDES I/8X 3/B BOTTOM STRINGERS TAPER TO REAR I/B X 1/4 HARD BALSA TOP-BOTTOM SPAR CAPS 3/32BALSA RIBS I/B MED HARD SPAR HALF NOTCH OVERALLRIBS what build next decision made de velop aerobatic model RCnot FAI style flying aerobatic ship would per form like its full-size counterparts should able Aresti-type flying have smoker forvisual effects doing air-show-type flyingon weekends Super Akro Chips born After caine called Dusty little larger Chips some slight changes force arrangement Inevitably led best aerobatic machine flying today 1980 World Champion Laser cant improve something close perfection already wrote Bob Morrison Repla-Tech purchased book aerobatic airplanes RS-5000 set color pictures taken Laser World Champs Ceske Budejovice Czechoslovakia 1978 mate rial used basis forthe model ofthe Laser presented planning entering model Sport Scale competition just like build fly Scale models fun weekends suggest obtain mate rials Repla-Tech 48500 McKenzie Hwy Vida OR 97488 pics three-views used presentation book model Sport Scale contests models first contest Houston TX Manned Spacecraft Center RC Club Scale Rally October 31 November 1 1981 frontof some very strict judges Laser took first place nosing Out some fine Scale models soit obviously has po tentialtobe awinnerin competitions Ontheother hand build fly just enjoyment will find construction model un complicated average kit sport flying winter day home town Victoria TX 450 sunny light variable winds model first took air arrived field about 815 am unloaded model gear About 10 minutes later good buddy photographer fellow modeler Leon Folse arrived equipment took about 30 minutes get engine ad justed running just right no problem smoker cowl screwed both tanks fuel smoker topped off fired up taxied out lined up Pushed throttle against firewall fed littie right rudder about 100 ft off itself Made shallow right climbing turn No trim needed straight flight back Next made 1800 turn tried roll little slow getting around Made turn back kicked smoker did inside loop tracked correction Chopped smoker made turn flipped smoker again did Cuban 8 no wind smoke hanging good grinning 26 Model Aviation wing panels being assembled rear top sneeting gieo pinned Note tiP Ji95 wie-in snim under center section tapered blocks positioned midway half TSF 8SF B 02 TEUTOPLT*40410100 00 TOI sF-Fl F5A 4-0100p VS/Cr Fl1000006 ES0000F0*0F0IiI Fl4050*FTS00 78SF500 TTOLOTC0000S 1640400-4ASFR 2OO IC 00000 2048 03003 02 Coso3000030CAW.0kT000 4 00T 004004 snap thrill time Ah joy second flight model did Lomcevak smoker going quite sight did inverted flight fullpower hammerhead four inside consecutive snaps full power outside snap reverse knifeedge vertical climbing rollall smoker going Two flights put morning must say real joy fly smoker gives added dimension tried tail slide entered beautifully lack finesse sticks did allow complete maneu ver Im gonna practice 40 moves plane just about scale speed Vertical maneuvers good feel no need larger engine thats thing should enough room up front fit Study pians reading structions should have problem building off-the-shelf model supplies Construction Select balsa carefully model will turn out rightweightforgood aerobatics Heres trick thats useful models check sheets balsa will find will balance heavy end good rule thumb littie catch saying re member isfrontand center Always puttheheavy ear ear Went straight Out cut off landing no problem end toward front fuselage and/or smoker made turn dove little started aileron links put next hole center wing smoke did knife-edge across field Ive horn little throw tanks never model fly well test flight filled another flight Engine running pushed wing has built order complete After knife-edge turned downwind stick forward K&B 40 started sing- fuselage would good place start throttle eased back Made turn ing As accelerated smoker kicked construction parts full-size difinal settled near-perfect landing rolled about 50 feet moresmoke pouring out mensions can taken directly plans could have left wheel pants takeoff runway pulled up 450 did inside number ways make ribs 1 w STASILIZELEVATOR LB SEOCO1AABLBOVW _________________w __Lw LEFT PANEL -J 0 -J ci VPSAVONALSAz IIZIP__a w ____-N 0CO -J LA 0 QY ______ ___ __CZiZIZiiz /PABOULASER ZOO OARER November 1982 27 construction has b reuy ror puooing riniuncanopy maseu protection built competition get scale documentation Repla-Tech International make tracings ribs 2 use carbon paper over balsa direct transfer 3 use root tip ribs 10 blanks balsa stacked carving latter method put tip rib outside end stack root rib between first second pieces use Y16 ply patterns root tip ribs carving way spar pieces cut same piece straight-grained balsa ensure uniformity Pin piece hard alsa over plans shown spar cap Glue spar rear edge slots up keeping 900 workbench Check fit rib trim necessary Pin over plans shown 6 square jig straight piece inside piece leading edge Check-fit rib again OK glue place pin ning securely jig Cut sheet Y x 3 x 31 medium C-grain balsa half along length trailing edge sheets Glue piece 31 balsa edge of sheets 900 angle Note side view fuselage drawing shows root rib also rib *8 wing plan Glue trailing edge sheet rear rib firmly butting firmly against Check-fit piece hard alsa top spar cap has fit flush ribs Glue place fitted Lay piece medium A-grain Y32 sheet balsa over ribs front spar Sand angle edge fits -in leading edge piece Mark excess over rear edge spar trim off Glue pin sheet place making sure ribs still pinned down firmly 3/16-in jig use slower drying cabinet-type glue over ribs model-type cement along leading edge dope-type finish employed model 28 Model Aviation lIe UdbiL iueiaye P preuy weii uriuerway nere dOle /8 sneet ror pushrod exit Wing behind still needs center sheeting DOLLOITI stringer smuer tdflN Vs r ilfeWdil 0110 74lll 111011 have glued place Note T-pins easy-on-finger pushing Mere inc anoing gear ueing ilUCO 10-YIP ply i lie IUCI narrnaireauy rids installed has engine/mount fitting 115 pic snuws ill pora fit 5LCP5 rl 00110 lI1 Lilt d 0111 5CISLIUIi LP polyethylene sheet will separate wing fuselage Shes really beginning take shape now major components place Cockpit inside carved /s canopy Note shape being carved rear cockpit Fuselage side piece TSF above wing has rough-carved Cutthe aileron crank plate Ply mount crank Cut fairleads pushrod 1/16 ply pushrods made /16-in copper-coated weldingrodit doesnt rust solders quite well bends easily made Make bend aileron crank slip crank slide through holes ribs slipping fairleads go glue aileron crank plate ot cutouts ribs 6 & 7 Cut glue /32 x strips ribs Dont sheet cen ter section time glue has driedon panels unpin workbench use inside flush door assemble panels full wing doors flat straight pins push easily Draw straight line 6 ft long about 6 edge long side Draw line 900 6-ft line its center Draw two lines 900 long line spaced 29 center line pin tip jigs lines Place scrap piece /32 sheet center line crossed long line Make sure lines jigs match long center line builds proper tip washout wing Pin panels down center section lining up rear edge spar over long line mark tip jig Place 9/16-in shim under trailing edge center section pin down About halfway out panel trailing edge shim assure straight trailing edge top sheeting glued Note pic tures wing being assembled Epoxy ply joiners spar ply piece RB trailing edge Choose matching sheets /32 balsa top sheeting orderto have bal anced wing keep having add lot weight tip Fit trim top sheeting ac cording drawing right panel very careful gluing top sheeting wing just about impossible twist untwist once sheeting place Dont sheet center section over leading edge yet sheeting glue has thoroughly dried remove wing board turn over pin down after removing jigs board Epoxy ply IA ribs inside #1 ribs flush bottom curve Sheet bottom center section behind spar Glue i/ balsa webs between ribs leading edge trailing edge sheet Turn wing over Epoxy plate place over ribs 1 Sand ling edge flush top sheeting Pin panel down bench along trailing edge over wax paper poly sheet Take trailing edge stock check-fit -in trailing edge Sand needed tight fit cut proper angle center sec tion glue pin wing Repeat pro cedure other panel Using long straight edge trim trailing edge stock shown plans Sand trailing edge makes smooth transition wing sheeting Layout aile rons ball-point pen cut away Sand angle leading edge ailerons shown rib #8 wing drawing Sand -in leading edge piece flush sheeting Cut piece -in sheet little wider leading edge glue wing complete i/4.in.thick leading edge method laminating leading edge has three positive results stronger one-piece leading edge less susceptible warping easier sand proper shape due glue joint acting guide Glue t tips dont glue portion makes up aileron mass balance Sand tips shape around tip rib cut off aileron mass balance bal ance glued pinned toothpicks aileron Fuselage have access x 48 sheets balsa makes job fuselage side fabrica tion little easier glue two sheets x 36 together form six-inch sheets three times sidejointto made follows Cut two 6 x 8 pieces ofthe sheets Make dovetail joint end x 36 sheets shown side view fuselage plans make matching joint two 6 x 8 pieces Glue together basic sides Lay out thrust line sheet ball point pen use reference point fully laying out side Basically straight lines Refer isometric sketch ar rows side view layout made layout completed cut side out use pattern make another Cut doublers t glue sides Glue /i6 sq longerons side cut cabin section sides away set aside time being Pin sides over top view rear landing gear plate tail post Slide former down its place pin Use 900 triangle make sure sides square work surface cyanoacrylate glues come handy right After formers glued place top onerons glued cut outs Pull top -in sides Thin 1/54 ply pieces FC RC glued epoxy form cowlA good sanding job will givethis kind appearance nose blockand shape Two layers FC appliedply cowl sides fair nicely cowling top November 198229 Ille V4Ifl tranyuar UUW UULIFIU pIVtVb Ildv U~II jiuu havethe 1/ x 1/4 rear strips Note maple blocks nylon wing bolts Ply cowl formers Cl C2 glued place rear 1/ax 1/4 strip sanded taper vent hole cut engine bay forward Cl stabilizer mounts right behind former F-7 glue flush former angle Glue t filler pieces place shown side top views fuselage rear Install tubing Sullivan cable pushrod GRC-S using sandpaper wrapped around -in dowel forthe hole inthe balsa sheet exit point Cut turtledeck sides TD including slot stabilizer medium light a Unpin fuselage plans Cut BSF fuselage side fairings a glue place Gluethe tringer BSF tothetail post along top edge fuselage side Glue turtledeck sides place clamping clothespin rear bring sides together over tail post Glue /32 balsa bottom sheeting place dry sand flush sides Mark cen ter line bottom sheeting behind LGP tail postalso two lines -in side extending LGP 3 behind F5 Glue s stringers place lines sand center taper 3 hind F-S tail post Check-fit /i ply LGP Trim doublers needed plate fits flush sides Epoxy place Lay out firewall center thrust lines Place engine mount overthese andlayoutthe bolt holes going use solid bolt method mounting drill holes put flat washer bolt push through firewall holes rear Cut three piece 040 music wire about inch long making slight bend middle solder head slots Install engine mount tighten nuts mount snug against firewall Smear 5mm epoxy liberally over bolt heads washers wire method has worked well models has advantage com pletely fuel-proofing engine compartment rest fuselage epoxying done later Glue firewall place epoxy Glue /i ply tank floor place between firewall F-3 Assemble SS-8 fuel tank RST-6 smoker tank leave tubing long enough pass firewall about inch extending engine compartment use three-tube system tanks pluggingthe fill tube after fill ing leaving vent open facingthe prop blast slight pressure tank has always given good engine runs attitude smoker tank tubing tee made stalled pressure tubing behind valve tube run front cowl used fill smoker tank valve closed keep flooding crankcase smoke oil line plugged along vent line after tank filled Plug -in plastic caps come tubing purchased rolls may able get heating plumbing air-conditioning dealer Install throttle pushrod smoker valve pushrod tubing time using cabletype pushrods Glue -in triangle pieces F-l F-3 Cut slot right fuselage side clear engine cylinder install engine Pack foam rubber around tanks glue -in top bottom forward blocks place Cut landing gear Sig 2 x 18 x /32 aluminum landing gear blank Drill axle mounting holes bend according pat tern fairing block covers gear held 4-40 bolt tapped cen ter landing gear Place gear over LGP square up Mark mounting holes drill through LGP install blind nuts lockwith dab epoxy Glue FP- 1 FP-2 ply pieces place Glue rear wing holddown plate re cesses doublers D-2 Cut aple blocks size epoxy place shown top side views Sand wing center section leading trailing edges until good fit obtained fuselage wing saddle Glue ply piece WP wing trailing edge Center wing saddle pin down Measure tail post tip shift wing until square fuselage Drill mounting holes down through wing maple blocks Remove wing tap blocks -20 Glue bottom front center section sheeting wing Run -in drill through ply plate bottom sheeting Glue top center section sheeting wing runthe -indrillthroughthis sheetfromthebot tom up Bolt wing place fuselage Lay some poly Saran Wrap over wing pin formers F3A F5A place Glue triangle top fuselage side pieces Continued page 113 30 Model Aviation Cheek cowl bumps nave nssea ana sanaea Nose snape aria position main cowl Author works foam avoid dings nemuvanie SeUtluri 01 LUWI lidS UCil LUL away ailuilly ya lialil blocks fitted bottom stringers glued sanded OOZ H35V1 LASER t 500 orderfull-size plans Brad Shepherds Laser 200from MA will begiven free set water-transfer decals shown decal has all-yellow lettering proper size forthe model reproduced smaller magazine black background contrast What doing winter prospect long cold winter has got down let OrLine R/C kit take chill off OrLines classic World War biplanes favorite winter building project novice expert alike new Y4 scale Fairchild 22 sure provide plenty excitement its gr8ceful lines begin take shape workbench can bring back romance Immelmanns dogfights winter long two airplanes will never go out style Sopwith Pup Fokker DVII something winter Warm up OrLine Fairchild 22 Sopwith Pup Fokker DVII Wing span 98 Wing span 67/2 span 72 Wing area 1617 sq inWing area 1586 sq inWing area 1480 sq Power 2 cu Quadra r 60 90 r 60 90 $18950 $11950 $11950 ci Wi ke Cr OrLine Radio Controlled Aircraft Mfrs ox 12501 Salem Oregon 97309 phone 503 362-1606 ever saved over three dozen Joe Ott kits kits included mahogany card board sheet parts WW II shortages bass wood strips tissue glue kits may have dated 1940-1 944 built sold several Americas Hobby Center Still have eight hand Wild cat Mustang Spitfire Brewster Dauntless Stuka etc boxes area bit tattered cant swear glue good Super Jet old-timer fans inter ested would part couple would happy donate couple AMA Museum heavens sakeguys dont write ol Bill Keiths address Box 135 Division St RD No 2 Galway NY 12074 doubt hell able answer everyone wheres sporting blood Correction recent column spoke flying Cessna 120 flaps own ers pilots chide us politely 140 Both basically similar al though electrics other stuff improved 140 flaps added remember having two bad mags 120 cross-country buy elec tric bit confused numbers having also flown four-place 170which flies bet ter its trike descendantswhich assumed 140 Memory plays tricks also slight time no takeoffs land ings both immortal Airmaster prewar vintage 195 impressive hunk machinery AU friendly critics agree flaps 140 did next nothing Bob Benjamins search authentic Aeronca K plans Ive swamped ad vicedo know Bob Lopshire Bob Karlsson has local use real plane nearby too Karlsson noted Scale man meet him contest might beg him bended knees Bill Winter 4426 Altura t Fairfax VA 22030 Laser Model/Shepherd Continued page 30 shown side view Pin top sides place formers F3A F5A Slip former F-4 place eyeball top see square straight glue sides formers Glue /32 sheet F-4 forward cockpit floor Glue Vs x longerons F-4 F-S Glue F5B place Glue TSF side fairings place Glue -in side sheets F-4 F5A Remove cabin section glue -in dou blers inside side sheets between F-4 F5A op longerons Glue -in sheetovertheturtledeck7/g-in behindformerF-5 Glue tab -in top sheet 2-in forward block over fuel tank Glue -in sheet over cabin section Mark center forward rear -in blocks 5bin section drill us-in holes marks dowels Cut dowels length Hot Stuff top blocks Place cabin section back wing Pin down drill holes 4-40 FR bolts through middle dowels Remove cabin section install 4-40 blind nuts under ply tabs Taper top holes dowels screw cabin section Cut former F-i Ply Mark center Continued page 116 II ~R/C GOODIES P 0 BOX 192 NUYS CA91408 AIR213 764-1490FO 110 CAPITAL MODELS READY-TO-FLY 40 61 1Reg $15995SPAN SPECIAL $13995I $65OShipI Fully Built & Painted Controls Fuel Tank LG & Wheels installed Needs Ionly Engine Radio installationI 4 4Ce Reg $6950 SPECIAL $4995 POWER PACER R/C Battery Tester Charges & Cycles Tx & Rx batteries Locates bad cells & provides batt capacity readings cowTy TRAINER CRAFTAIR I57 ISPAN SHIP $650 Reg $4995 SPEC $3247 Kit available flatbottom semmsym Imetrical wing 2 4 Ch 19 40 Engine Calif add Sales Tax No CODs Brochure 60m US $170 Foreign 4 1/2% Surcharge VISA Visa Master Card November 1982 113 cam erty 25 cuin Engine wei9ht 4 lb 6 oz So lid state ignition Roller bearing flywheel Ball bearing rear Hemi-head chamber Schneurle ported 2 pc con rodbearings Chrome plated cylinder Magnesium case Balanced crank Pyramid reed intake Built-in choke Hem ht 725 $27900 retail Wi Ith Shaft center widest point 313 Total Width 525 Mounting plate prop 60 See local hobby shop Hell order stock CONTEMPO HOBBY PRODUCTS 11611 CANTARA ST H HOLLYWOOD CA 91605 division Con tempo Enterprises lines on front blocks Line up F-i glue place Cut canopy Sig 16 universal stock canopy Place canopy posi tion cabin section mark around top -in sheet Cut female pattern F-4 shown plans use shape turtledeck directly behind canopy Roughly cutout cockpit -in top sheet Shape theturtledeckfirstwith aknife andthenwith 100grit paper block Now place canopy cabin carve sand until have good fit Trim Out cockpit until about -in around inside canopy Remove cabin section unbolt wing bolt cabin section back Glue ertical strip front edge BSF Refer side view measure cowl outline mark fuselage sides out lines Cut glue -in triangle stock inside lines wide side glued fuse lage Note cross sections F-2 F-3 Cut C-i C-2 pieces /16 ply glue place Cut side away F-I C-l air venting taper trip Fair -in triangle formers Note bottom cowl section F-3 Cut four cowl pieces FC As ply section cowl doubled Check-fit cowl pinning place over F-i halfway over C-2 totally covering -in triangle outline Trim necessary good snug fit Epoxy fuselage sides inside cowl fuel-proof Epoxy inside cowl FC put place pin around Dont put both C-is engine side yet will glued inside cowl after cut off Cut two RC pieces /64 ply Check-fit trim needed Epoxy inside glue place over C-2 -in trian gle vertical poxy inside other FC pieces put overthe FC pieces already glued fuselage Use rubberbands around fuselage help hold snug existing cowl pin around edges cowl has dried sand FC pieces square F-i Rough-cut -in nose block glue F-i Using 100-grit paper block carefully sand top bottom blocks nose shape fairing smoothly ply cowl Take one-inch block little larger cowl bump cut side angle see Step i fuselage drawing cut outline rough shape Step 2 Using piece 80-grit paper wrapped around 4-oz dope bottle similarsized cylinder carefully sand inside con tinue trial-fitting ply cowl Step 3 good fit obtained cut sand outside rough shape Step 4 glue position per side view fuselage Sand bumps until fair smoothly cowling Any imper Tail surfaces Cut -in slot turtledeck top block forward fin goes using straightedge line up fuselage center line Bolt wing fit stab slot turtledeck sides Line up stab parallel wing rearview square fuselage top view Glue stab place glue finusing 900 angles made scrap balsa keep fin square stab wing drying elevator connecting bar made s tubing 332-in music wire Solder music wire holes tubing Recess elevators tubing goes Pin eleva tors down workbench proper distance apart butting against straightedge Fit bar elevators mark places music wire enters elevator Drill holes elevators pin back down making sure Epoxy bar place always cut slots fit hinges surfaces before finishing put model can done now hinges will glued after model completely finished Detailing Williams Bros 2-in sport pilot used few modifications try make look like Leo Loudenslager point nose sanded off slightly talc dope mixed stiff putty modify hair mixture will soften plastic careful takes about two days harden again globbed mixture head using some photos Leo guide dry coping saw blade raked across putty simulate hair painted hair yellow Pactra Namel followed mixture flat brown yellow lighten brown After dry saw blade used againto sim ulate strands hair takes little fiddlin results pretty good shirt painted flat red Leo saw pilot figure Sher man laughed Jim Roberts said looked just like himso guess its close enough Sport Scale inside cockpit sanded smooth /32 sheet instrument panel glued place cockpit painted Glue block balsa bottom pilot figure trim shape pilot Place pilot cockpit trim bottom block until head just clears canopy Paint block red match pilots shirt glue Glue canopy being careful smear glue Mask off can opy keep clean finishing model 116 Model Aviation fections bumps can smoothed putty before covering finishing Using Zona Saw cut cowl cabin section separation remove cabin Mark off portion front cowl re movable over engine Use Zona Saw back removed cut portion away Glue Vs ply hold-down tabs place Drill -in holes cowling dowels glue dowels Hot Stuff Drill through dowels ply tabs mount blind nuts under tabs Glue other C- 1 inside cowl flush rear edge shown top view Make smoker valve shown draw ing buy commercial valve Mount ply wood epoxy itto inside cowl per top view combination smoke chamber tail pipe muffler fabricatedfrom light steel tub ing -in soft brass tubing 12-gauge sheet metal flange stuffed steel wool cap ped 26-gauge sheet holes drilled order have enough heat vaporize fluid its necessary insulate whole cham ber six seven wrapped thicknesses light fiberglass cloth Make covers insulation tin can Bend sheetmetal overthe fiber glass solder edges holding place twisted wire until solder hardens genera tor works very nicely using Texaco almag fluid smoke dense has good hang time Cover engine mount bolts short pieces fuel tubing brush slow-driving epoxy inside engine compartment fuelproof model presented has doped finish Silk used bottom half fuselage wing remainder model covered lightweight silkspan Aerogloss metallic blue very close color Leos Laser Yellow trim used adding white until correct shade attained match decals best way found match decal color cut out 716-in-wide LASER 200 de cal attach itto blue-doped wheel pants proper placethen kept experimenting yellow until matched decal color dab blue may have added yellow really good match star sizes shown fuselage draw ing fuselage stars masked off doped white pattern ofthe wing stars made Y16 ply stars cut Sig white decal sheet decals come plans given two coats clear polyurethane after have dried thoroughly tail feather bracing made 045 music wire #26 solder lugs soldered ends held 2-56 bolts simulated rib stitching fin rudder stab elevators ailerons made Manila paper file folder material pizza cutter rolled over about 3/is-in intervals toindentitthenitiscutinto5/32-in strips doped surfaces effect good 15 feet Most folks have own favorite way stalling radio gear Mine shown plans ship balanced CG shown add ing weight build bird believe will give hours truly enjoyable aerobatic flyingIf go full route detailing will com petitive other Sport Scale models vari ous meets See Nats General Con fin ued page 33 competition some events such RC Pattern running five consecutive days World Championships involve much Natsin number people days hours Consider Nats competition begins November 1982 117 4 ft MODEL ENGINEHEAT SHRINKWING SADDLE FUEL LINETUBINGFOAM TAPE 1/16 dia Special formulated high grade Ideal sleeving plugs conblack neoprene tubing glow nectors Shrinkable using gas oil diesel fuels soldering iron cigarette lighter Part No 200-249$149Part No200-250$ 98 Kraft Systems 450 W California Ave Vista CA 920830 Division Carlisle Corporation Pressure sensitive adhesive side 1/16 x 4 Easy apply Makes neat looking wing fuselage fit Can also used seal access hatches cowlings etc Part No 200-251$159 TAPER ACETM Rib Profiler makes tapered eliptical wing design easy Works faster computer Adjusts locks size rib instantly Curve plates provided draw 3 different full symmetrical 3 different semi-symmetrical airfoils Flat bottom airfoils can also drawn Send check M 0 $2495 Jim Denaro Model Products 543 Bedford Street Concord MA 01742
Edition: Model Aviation - 1982/11
Page Numbers: 22, 23, 24, 25, 26, 27, 28, 29, 30, 113, 116, 117
NO OCR TEXT NO OCR TEXT aircraft coached another Jim decided build own Laser took air 1978 very little differ ence two aircraft Jims has shorter land ing gear slightly different cowl different paint scheme both planes basically metallic blue light yellow trim trim stars Jims different Leos Both Lasers will represent United States World Championships 1982 Europe Leo took another first Unlimited Jim came fourth National Aerobatic Champion ships Sherman TX October last year Henry Haigh flying modified Stehens called Super Star much same Lasers will also World Champs runner-up Leo Nationals Permit take short look back some what prophetic statement made Don Berliner 1973 article aerobatic airplanes talking about Stephens Akro days something going come alongto knock Pitts off its lofty perch day upon us would appear three out top five Nats flying versions original Stephens So much has written about exploits Leo Laser couldnt add anything new substance However Ihadthe pleasure ofmeet ing Leo Jim during 1981 National Cham pionships Sherman found out both fly RC During low-ceiling weather full-size planes grounded both flew model taken modi fied Stephens smoker kicks Super Akro ChipsJune 1981 MA dont know ever plan entering competition RC keep eye model few years back mulling over ~ouu viuw urn Ln uri wr tail feathers045 music wire Landing gear attachment single tapped hole middle holds terminating #26 solder lugs held 2-56 bolts fairing block Note slight toe-in wheels Lots plumbing needed engine companment Tur TIIIIflyVflflW wing tip tne guiae aio piioi perlumlirig preurnalun both fuel smoker tanks plus feeding engine smoker aerobatics maneuvers Note rib stitching ailerons mass balance 24 Model Aviation underside wing center section showing eron servo installed hooked up Attention detail pays off Just width enough four-across servos Pushrods cable type Receiver batteries need well padded MY WI1ILLJjINb V ANUIM V lE-C tLII j IVjY I-tlNLr/ IILL Ht IPLIW BACK AFThP I6YRS AIRR71Y TO SOLO THE 15a-WTEP AAHLLBET HETALbDTI-E ME RIGHTOUTOF OF FLOAT r TOGLIAR - NE SWTF R GRT DOWNTO THE COCKP T I-fE FLYING NI 4k HEASNT r THE CUBE-f THEGROI*JD DDrYLP NEDDP DO / JULY22 2j 14HOURSYOU ~7I/\1/Ax HAVE rwOArn-fougAgjo 1-4 D BALSA FIN AND RUDDER 1/2 BALSA TJRTLE DEC TO FIN POST1/4 50 FIN POST iili / 3/32 WIRE INTO ________3/16 TUBING FOR ______________________________ELEVATOR TIE 3/32 SHEET PILOT DECK /2 BALSA COWL DECK I/B PLY AlL SERVO MOUNT 4-40 SCREWS HOLD REMOVE-ABLE COWL/8 PLYWCOD RERJFTSF FRONT AND BACK AT CENTER SECTION Fl INCUT F7 7 1/4 HARD BALSA STABILIZER AND ELEVAlOR / 3/Bx 11/2 T EDGE STOCK I/S OOfl PLATE MOUNTS AILERON BELLCRANK I/Bx 3/8 TEIX SPAR F2 I/4PLYVIUOD I- AWMINUM MOUNT F 1 1/8 LrTI PLY BACKS UP RING SiDE SHEET SPLICE 1/2 BALSA BC7IrON 3/4 BALSA SLOCK RING 7IA FOR NYLON SGREVVS 1/2 BLOCKSFP 1I/8PLYWCOD LG FILL 1/16 SHEET WEBS SIG 2 18 AWM BLANK 1 BLOCK PANTS TOP 4-40 FH SCREWS INTO TNUTS IN 1/4 PLY3/16 BALSA OUTBOARD LG MOUNT I/B Ply WCOD INBOARD WALLS ---- 7 R FROM I/4TO ZERO T-NUTS FOR SCREWS BALSA WING TIP DOUBLED I/B BALSA LEADING EDGE BUTT JOINTS OF 3/32 BALSA SKIN AILERON BEARING L4 WHEEL ON 1/16 MUSIC WIRE /850 STRINGERS 2 EACH SIDE 3/32 BOTTOM SHEET CROSS GRAIN ON 3/1650 LONGEFUNS I/B SHEET BALSA SIDES LOWER TD IS UPPER SIDES I/8X 3/B BOTTOM STRINGERS TAPER TO REAR I/B X 1/4 HARD BALSA TOP-BOTTOM SPAR CAPS 3/32BALSA RIBS I/B MED HARD SPAR HALF NOTCH OVERALLRIBS what build next decision made de velop aerobatic model RCnot FAI style flying aerobatic ship would per form like its full-size counterparts should able Aresti-type flying have smoker forvisual effects doing air-show-type flyingon weekends Super Akro Chips born After caine called Dusty little larger Chips some slight changes force arrangement Inevitably led best aerobatic machine flying today 1980 World Champion Laser cant improve something close perfection already wrote Bob Morrison Repla-Tech purchased book aerobatic airplanes RS-5000 set color pictures taken Laser World Champs Ceske Budejovice Czechoslovakia 1978 mate rial used basis forthe model ofthe Laser presented planning entering model Sport Scale competition just like build fly Scale models fun weekends suggest obtain mate rials Repla-Tech 48500 McKenzie Hwy Vida OR 97488 pics three-views used presentation book model Sport Scale contests models first contest Houston TX Manned Spacecraft Center RC Club Scale Rally October 31 November 1 1981 frontof some very strict judges Laser took first place nosing Out some fine Scale models soit obviously has po tentialtobe awinnerin competitions Ontheother hand build fly just enjoyment will find construction model un complicated average kit sport flying winter day home town Victoria TX 450 sunny light variable winds model first took air arrived field about 815 am unloaded model gear About 10 minutes later good buddy photographer fellow modeler Leon Folse arrived equipment took about 30 minutes get engine ad justed running just right no problem smoker cowl screwed both tanks fuel smoker topped off fired up taxied out lined up Pushed throttle against firewall fed littie right rudder about 100 ft off itself Made shallow right climbing turn No trim needed straight flight back Next made 1800 turn tried roll little slow getting around Made turn back kicked smoker did inside loop tracked correction Chopped smoker made turn flipped smoker again did Cuban 8 no wind smoke hanging good grinning 26 Model Aviation wing panels being assembled rear top sneeting gieo pinned Note tiP Ji95 wie-in snim under center section tapered blocks positioned midway half TSF 8SF B 02 TEUTOPLT*40410100 00 TOI sF-Fl F5A 4-0100p VS/Cr Fl1000006 ES0000F0*0F0IiI Fl4050*FTS00 78SF500 TTOLOTC0000S 1640400-4ASFR 2OO IC 00000 2048 03003 02 Coso3000030CAW.0kT000 4 00T 004004 snap thrill time Ah joy second flight model did Lomcevak smoker going quite sight did inverted flight fullpower hammerhead four inside consecutive snaps full power outside snap reverse knifeedge vertical climbing rollall smoker going Two flights put morning must say real joy fly smoker gives added dimension tried tail slide entered beautifully lack finesse sticks did allow complete maneu ver Im gonna practice 40 moves plane just about scale speed Vertical maneuvers good feel no need larger engine thats thing should enough room up front fit Study pians reading structions should have problem building off-the-shelf model supplies Construction Select balsa carefully model will turn out rightweightforgood aerobatics Heres trick thats useful models check sheets balsa will find will balance heavy end good rule thumb littie catch saying re member isfrontand center Always puttheheavy ear ear Went straight Out cut off landing no problem end toward front fuselage and/or smoker made turn dove little started aileron links put next hole center wing smoke did knife-edge across field Ive horn little throw tanks never model fly well test flight filled another flight Engine running pushed wing has built order complete After knife-edge turned downwind stick forward K&B 40 started sing- fuselage would good place start throttle eased back Made turn ing As accelerated smoker kicked construction parts full-size difinal settled near-perfect landing rolled about 50 feet moresmoke pouring out mensions can taken directly plans could have left wheel pants takeoff runway pulled up 450 did inside number ways make ribs 1 w STASILIZELEVATOR LB SEOCO1AABLBOVW _________________w __Lw LEFT PANEL -J 0 -J ci VPSAVONALSAz IIZIP__a w ____-N 0CO -J LA 0 QY ______ ___ __CZiZIZiiz /PABOULASER ZOO OARER November 1982 27 construction has b reuy ror puooing riniuncanopy maseu protection built competition get scale documentation Repla-Tech International make tracings ribs 2 use carbon paper over balsa direct transfer 3 use root tip ribs 10 blanks balsa stacked carving latter method put tip rib outside end stack root rib between first second pieces use Y16 ply patterns root tip ribs carving way spar pieces cut same piece straight-grained balsa ensure uniformity Pin piece hard alsa over plans shown spar cap Glue spar rear edge slots up keeping 900 workbench Check fit rib trim necessary Pin over plans shown 6 square jig straight piece inside piece leading edge Check-fit rib again OK glue place pin ning securely jig Cut sheet Y x 3 x 31 medium C-grain balsa half along length trailing edge sheets Glue piece 31 balsa edge of sheets 900 angle Note side view fuselage drawing shows root rib also rib *8 wing plan Glue trailing edge sheet rear rib firmly butting firmly against Check-fit piece hard alsa top spar cap has fit flush ribs Glue place fitted Lay piece medium A-grain Y32 sheet balsa over ribs front spar Sand angle edge fits -in leading edge piece Mark excess over rear edge spar trim off Glue pin sheet place making sure ribs still pinned down firmly 3/16-in jig use slower drying cabinet-type glue over ribs model-type cement along leading edge dope-type finish employed model 28 Model Aviation lIe UdbiL iueiaye P preuy weii uriuerway nere dOle /8 sneet ror pushrod exit Wing behind still needs center sheeting DOLLOITI stringer smuer tdflN Vs r ilfeWdil 0110 74lll 111011 have glued place Note T-pins easy-on-finger pushing Mere inc anoing gear ueing ilUCO 10-YIP ply i lie IUCI narrnaireauy rids installed has engine/mount fitting 115 pic snuws ill pora fit 5LCP5 rl 00110 lI1 Lilt d 0111 5CISLIUIi LP polyethylene sheet will separate wing fuselage Shes really beginning take shape now major components place Cockpit inside carved /s canopy Note shape being carved rear cockpit Fuselage side piece TSF above wing has rough-carved Cutthe aileron crank plate Ply mount crank Cut fairleads pushrod 1/16 ply pushrods made /16-in copper-coated weldingrodit doesnt rust solders quite well bends easily made Make bend aileron crank slip crank slide through holes ribs slipping fairleads go glue aileron crank plate ot cutouts ribs 6 & 7 Cut glue /32 x strips ribs Dont sheet cen ter section time glue has driedon panels unpin workbench use inside flush door assemble panels full wing doors flat straight pins push easily Draw straight line 6 ft long about 6 edge long side Draw line 900 6-ft line its center Draw two lines 900 long line spaced 29 center line pin tip jigs lines Place scrap piece /32 sheet center line crossed long line Make sure lines jigs match long center line builds proper tip washout wing Pin panels down center section lining up rear edge spar over long line mark tip jig Place 9/16-in shim under trailing edge center section pin down About halfway out panel trailing edge shim assure straight trailing edge top sheeting glued Note pic tures wing being assembled Epoxy ply joiners spar ply piece RB trailing edge Choose matching sheets /32 balsa top sheeting orderto have bal anced wing keep having add lot weight tip Fit trim top sheeting ac cording drawing right panel very careful gluing top sheeting wing just about impossible twist untwist once sheeting place Dont sheet center section over leading edge yet sheeting glue has thoroughly dried remove wing board turn over pin down after removing jigs board Epoxy ply IA ribs inside #1 ribs flush bottom curve Sheet bottom center section behind spar Glue i/ balsa webs between ribs leading edge trailing edge sheet Turn wing over Epoxy plate place over ribs 1 Sand ling edge flush top sheeting Pin panel down bench along trailing edge over wax paper poly sheet Take trailing edge stock check-fit -in trailing edge Sand needed tight fit cut proper angle center sec tion glue pin wing Repeat pro cedure other panel Using long straight edge trim trailing edge stock shown plans Sand trailing edge makes smooth transition wing sheeting Layout aile rons ball-point pen cut away Sand angle leading edge ailerons shown rib #8 wing drawing Sand -in leading edge piece flush sheeting Cut piece -in sheet little wider leading edge glue wing complete i/4.in.thick leading edge method laminating leading edge has three positive results stronger one-piece leading edge less susceptible warping easier sand proper shape due glue joint acting guide Glue t tips dont glue portion makes up aileron mass balance Sand tips shape around tip rib cut off aileron mass balance bal ance glued pinned toothpicks aileron Fuselage have access x 48 sheets balsa makes job fuselage side fabrica tion little easier glue two sheets x 36 together form six-inch sheets three times sidejointto made follows Cut two 6 x 8 pieces ofthe sheets Make dovetail joint end x 36 sheets shown side view fuselage plans make matching joint two 6 x 8 pieces Glue together basic sides Lay out thrust line sheet ball point pen use reference point fully laying out side Basically straight lines Refer isometric sketch ar rows side view layout made layout completed cut side out use pattern make another Cut doublers t glue sides Glue /i6 sq longerons side cut cabin section sides away set aside time being Pin sides over top view rear landing gear plate tail post Slide former down its place pin Use 900 triangle make sure sides square work surface cyanoacrylate glues come handy right After formers glued place top onerons glued cut outs Pull top -in sides Thin 1/54 ply pieces FC RC glued epoxy form cowlA good sanding job will givethis kind appearance nose blockand shape Two layers FC appliedply cowl sides fair nicely cowling top November 198229 Ille V4Ifl tranyuar UUW UULIFIU pIVtVb Ildv U~II jiuu havethe 1/ x 1/4 rear strips Note maple blocks nylon wing bolts Ply cowl formers Cl C2 glued place rear 1/ax 1/4 strip sanded taper vent hole cut engine bay forward Cl stabilizer mounts right behind former F-7 glue flush former angle Glue t filler pieces place shown side top views fuselage rear Install tubing Sullivan cable pushrod GRC-S using sandpaper wrapped around -in dowel forthe hole inthe balsa sheet exit point Cut turtledeck sides TD including slot stabilizer medium light a Unpin fuselage plans Cut BSF fuselage side fairings a glue place Gluethe tringer BSF tothetail post along top edge fuselage side Glue turtledeck sides place clamping clothespin rear bring sides together over tail post Glue /32 balsa bottom sheeting place dry sand flush sides Mark cen ter line bottom sheeting behind LGP tail postalso two lines -in side extending LGP 3 behind F5 Glue s stringers place lines sand center taper 3 hind F-S tail post Check-fit /i ply LGP Trim doublers needed plate fits flush sides Epoxy place Lay out firewall center thrust lines Place engine mount overthese andlayoutthe bolt holes going use solid bolt method mounting drill holes put flat washer bolt push through firewall holes rear Cut three piece 040 music wire about inch long making slight bend middle solder head slots Install engine mount tighten nuts mount snug against firewall Smear 5mm epoxy liberally over bolt heads washers wire method has worked well models has advantage com pletely fuel-proofing engine compartment rest fuselage epoxying done later Glue firewall place epoxy Glue /i ply tank floor place between firewall F-3 Assemble SS-8 fuel tank RST-6 smoker tank leave tubing long enough pass firewall about inch extending engine compartment use three-tube system tanks pluggingthe fill tube after fill ing leaving vent open facingthe prop blast slight pressure tank has always given good engine runs attitude smoker tank tubing tee made stalled pressure tubing behind valve tube run front cowl used fill smoker tank valve closed keep flooding crankcase smoke oil line plugged along vent line after tank filled Plug -in plastic caps come tubing purchased rolls may able get heating plumbing air-conditioning dealer Install throttle pushrod smoker valve pushrod tubing time using cabletype pushrods Glue -in triangle pieces F-l F-3 Cut slot right fuselage side clear engine cylinder install engine Pack foam rubber around tanks glue -in top bottom forward blocks place Cut landing gear Sig 2 x 18 x /32 aluminum landing gear blank Drill axle mounting holes bend according pat tern fairing block covers gear held 4-40 bolt tapped cen ter landing gear Place gear over LGP square up Mark mounting holes drill through LGP install blind nuts lockwith dab epoxy Glue FP- 1 FP-2 ply pieces place Glue rear wing holddown plate re cesses doublers D-2 Cut aple blocks size epoxy place shown top side views Sand wing center section leading trailing edges until good fit obtained fuselage wing saddle Glue ply piece WP wing trailing edge Center wing saddle pin down Measure tail post tip shift wing until square fuselage Drill mounting holes down through wing maple blocks Remove wing tap blocks -20 Glue bottom front center section sheeting wing Run -in drill through ply plate bottom sheeting Glue top center section sheeting wing runthe -indrillthroughthis sheetfromthebot tom up Bolt wing place fuselage Lay some poly Saran Wrap over wing pin formers F3A F5A place Glue triangle top fuselage side pieces Continued page 113 30 Model Aviation Cheek cowl bumps nave nssea ana sanaea Nose snape aria position main cowl Author works foam avoid dings nemuvanie SeUtluri 01 LUWI lidS UCil LUL away ailuilly ya lialil blocks fitted bottom stringers glued sanded OOZ H35V1 LASER t 500 orderfull-size plans Brad Shepherds Laser 200from MA will begiven free set water-transfer decals shown decal has all-yellow lettering proper size forthe model reproduced smaller magazine black background contrast What doing winter prospect long cold winter has got down let OrLine R/C kit take chill off OrLines classic World War biplanes favorite winter building project novice expert alike new Y4 scale Fairchild 22 sure provide plenty excitement its gr8ceful lines begin take shape workbench can bring back romance Immelmanns dogfights winter long two airplanes will never go out style Sopwith Pup Fokker DVII something winter Warm up OrLine Fairchild 22 Sopwith Pup Fokker DVII Wing span 98 Wing span 67/2 span 72 Wing area 1617 sq inWing area 1586 sq inWing area 1480 sq Power 2 cu Quadra r 60 90 r 60 90 $18950 $11950 $11950 ci Wi ke Cr OrLine Radio Controlled Aircraft Mfrs ox 12501 Salem Oregon 97309 phone 503 362-1606 ever saved over three dozen Joe Ott kits kits included mahogany card board sheet parts WW II shortages bass wood strips tissue glue kits may have dated 1940-1 944 built sold several Americas Hobby Center Still have eight hand Wild cat Mustang Spitfire Brewster Dauntless Stuka etc boxes area bit tattered cant swear glue good Super Jet old-timer fans inter ested would part couple would happy donate couple AMA Museum heavens sakeguys dont write ol Bill Keiths address Box 135 Division St RD No 2 Galway NY 12074 doubt hell able answer everyone wheres sporting blood Correction recent column spoke flying Cessna 120 flaps own ers pilots chide us politely 140 Both basically similar al though electrics other stuff improved 140 flaps added remember having two bad mags 120 cross-country buy elec tric bit confused numbers having also flown four-place 170which flies bet ter its trike descendantswhich assumed 140 Memory plays tricks also slight time no takeoffs land ings both immortal Airmaster prewar vintage 195 impressive hunk machinery AU friendly critics agree flaps 140 did next nothing Bob Benjamins search authentic Aeronca K plans Ive swamped ad vicedo know Bob Lopshire Bob Karlsson has local use real plane nearby too Karlsson noted Scale man meet him contest might beg him bended knees Bill Winter 4426 Altura t Fairfax VA 22030 Laser Model/Shepherd Continued page 30 shown side view Pin top sides place formers F3A F5A Slip former F-4 place eyeball top see square straight glue sides formers Glue /32 sheet F-4 forward cockpit floor Glue Vs x longerons F-4 F-S Glue F5B place Glue TSF side fairings place Glue -in side sheets F-4 F5A Remove cabin section glue -in dou blers inside side sheets between F-4 F5A op longerons Glue -in sheetovertheturtledeck7/g-in behindformerF-5 Glue tab -in top sheet 2-in forward block over fuel tank Glue -in sheet over cabin section Mark center forward rear -in blocks 5bin section drill us-in holes marks dowels Cut dowels length Hot Stuff top blocks Place cabin section back wing Pin down drill holes 4-40 FR bolts through middle dowels Remove cabin section install 4-40 blind nuts under ply tabs Taper top holes dowels screw cabin section Cut former F-i Ply Mark center Continued page 116 II ~R/C GOODIES P 0 BOX 192 NUYS CA91408 AIR213 764-1490FO 110 CAPITAL MODELS READY-TO-FLY 40 61 1Reg $15995SPAN SPECIAL $13995I $65OShipI Fully Built & Painted Controls Fuel Tank LG & Wheels installed Needs Ionly Engine Radio installationI 4 4Ce Reg $6950 SPECIAL $4995 POWER PACER R/C Battery Tester Charges & Cycles Tx & Rx batteries Locates bad cells & provides batt capacity readings cowTy TRAINER CRAFTAIR I57 ISPAN SHIP $650 Reg $4995 SPEC $3247 Kit available flatbottom semmsym Imetrical wing 2 4 Ch 19 40 Engine Calif add Sales Tax No CODs Brochure 60m US $170 Foreign 4 1/2% Surcharge VISA Visa Master Card November 1982 113 cam erty 25 cuin Engine wei9ht 4 lb 6 oz So lid state ignition Roller bearing flywheel Ball bearing rear Hemi-head chamber Schneurle ported 2 pc con rodbearings Chrome plated cylinder Magnesium case Balanced crank Pyramid reed intake Built-in choke Hem ht 725 $27900 retail Wi Ith Shaft center widest point 313 Total Width 525 Mounting plate prop 60 See local hobby shop Hell order stock CONTEMPO HOBBY PRODUCTS 11611 CANTARA ST H HOLLYWOOD CA 91605 division Con tempo Enterprises lines on front blocks Line up F-i glue place Cut canopy Sig 16 universal stock canopy Place canopy posi tion cabin section mark around top -in sheet Cut female pattern F-4 shown plans use shape turtledeck directly behind canopy Roughly cutout cockpit -in top sheet Shape theturtledeckfirstwith aknife andthenwith 100grit paper block Now place canopy cabin carve sand until have good fit Trim Out cockpit until about -in around inside canopy Remove cabin section unbolt wing bolt cabin section back Glue ertical strip front edge BSF Refer side view measure cowl outline mark fuselage sides out lines Cut glue -in triangle stock inside lines wide side glued fuse lage Note cross sections F-2 F-3 Cut C-i C-2 pieces /16 ply glue place Cut side away F-I C-l air venting taper trip Fair -in triangle formers Note bottom cowl section F-3 Cut four cowl pieces FC As ply section cowl doubled Check-fit cowl pinning place over F-i halfway over C-2 totally covering -in triangle outline Trim necessary good snug fit Epoxy fuselage sides inside cowl fuel-proof Epoxy inside cowl FC put place pin around Dont put both C-is engine side yet will glued inside cowl after cut off Cut two RC pieces /64 ply Check-fit trim needed Epoxy inside glue place over C-2 -in trian gle vertical poxy inside other FC pieces put overthe FC pieces already glued fuselage Use rubberbands around fuselage help hold snug existing cowl pin around edges cowl has dried sand FC pieces square F-i Rough-cut -in nose block glue F-i Using 100-grit paper block carefully sand top bottom blocks nose shape fairing smoothly ply cowl Take one-inch block little larger cowl bump cut side angle see Step i fuselage drawing cut outline rough shape Step 2 Using piece 80-grit paper wrapped around 4-oz dope bottle similarsized cylinder carefully sand inside con tinue trial-fitting ply cowl Step 3 good fit obtained cut sand outside rough shape Step 4 glue position per side view fuselage Sand bumps until fair smoothly cowling Any imper Tail surfaces Cut -in slot turtledeck top block forward fin goes using straightedge line up fuselage center line Bolt wing fit stab slot turtledeck sides Line up stab parallel wing rearview square fuselage top view Glue stab place glue finusing 900 angles made scrap balsa keep fin square stab wing drying elevator connecting bar made s tubing 332-in music wire Solder music wire holes tubing Recess elevators tubing goes Pin eleva tors down workbench proper distance apart butting against straightedge Fit bar elevators mark places music wire enters elevator Drill holes elevators pin back down making sure Epoxy bar place always cut slots fit hinges surfaces before finishing put model can done now hinges will glued after model completely finished Detailing Williams Bros 2-in sport pilot used few modifications try make look like Leo Loudenslager point nose sanded off slightly talc dope mixed stiff putty modify hair mixture will soften plastic careful takes about two days harden again globbed mixture head using some photos Leo guide dry coping saw blade raked across putty simulate hair painted hair yellow Pactra Namel followed mixture flat brown yellow lighten brown After dry saw blade used againto sim ulate strands hair takes little fiddlin results pretty good shirt painted flat red Leo saw pilot figure Sher man laughed Jim Roberts said looked just like himso guess its close enough Sport Scale inside cockpit sanded smooth /32 sheet instrument panel glued place cockpit painted Glue block balsa bottom pilot figure trim shape pilot Place pilot cockpit trim bottom block until head just clears canopy Paint block red match pilots shirt glue Glue canopy being careful smear glue Mask off can opy keep clean finishing model 116 Model Aviation fections bumps can smoothed putty before covering finishing Using Zona Saw cut cowl cabin section separation remove cabin Mark off portion front cowl re movable over engine Use Zona Saw back removed cut portion away Glue Vs ply hold-down tabs place Drill -in holes cowling dowels glue dowels Hot Stuff Drill through dowels ply tabs mount blind nuts under tabs Glue other C- 1 inside cowl flush rear edge shown top view Make smoker valve shown draw ing buy commercial valve Mount ply wood epoxy itto inside cowl per top view combination smoke chamber tail pipe muffler fabricatedfrom light steel tub ing -in soft brass tubing 12-gauge sheet metal flange stuffed steel wool cap ped 26-gauge sheet holes drilled order have enough heat vaporize fluid its necessary insulate whole cham ber six seven wrapped thicknesses light fiberglass cloth Make covers insulation tin can Bend sheetmetal overthe fiber glass solder edges holding place twisted wire until solder hardens genera tor works very nicely using Texaco almag fluid smoke dense has good hang time Cover engine mount bolts short pieces fuel tubing brush slow-driving epoxy inside engine compartment fuelproof model presented has doped finish Silk used bottom half fuselage wing remainder model covered lightweight silkspan Aerogloss metallic blue very close color Leos Laser Yellow trim used adding white until correct shade attained match decals best way found match decal color cut out 716-in-wide LASER 200 de cal attach itto blue-doped wheel pants proper placethen kept experimenting yellow until matched decal color dab blue may have added yellow really good match star sizes shown fuselage draw ing fuselage stars masked off doped white pattern ofthe wing stars made Y16 ply stars cut Sig white decal sheet decals come plans given two coats clear polyurethane after have dried thoroughly tail feather bracing made 045 music wire #26 solder lugs soldered ends held 2-56 bolts simulated rib stitching fin rudder stab elevators ailerons made Manila paper file folder material pizza cutter rolled over about 3/is-in intervals toindentitthenitiscutinto5/32-in strips doped surfaces effect good 15 feet Most folks have own favorite way stalling radio gear Mine shown plans ship balanced CG shown add ing weight build bird believe will give hours truly enjoyable aerobatic flyingIf go full route detailing will com petitive other Sport Scale models vari ous meets See Nats General Con fin ued page 33 competition some events such RC Pattern running five consecutive days World Championships involve much Natsin number people days hours Consider Nats competition begins November 1982 117 4 ft MODEL ENGINEHEAT SHRINKWING SADDLE FUEL LINETUBINGFOAM TAPE 1/16 dia Special formulated high grade Ideal sleeving plugs conblack neoprene tubing glow nectors Shrinkable using gas oil diesel fuels soldering iron cigarette lighter Part No 200-249$149Part No200-250$ 98 Kraft Systems 450 W California Ave Vista CA 920830 Division Carlisle Corporation Pressure sensitive adhesive side 1/16 x 4 Easy apply Makes neat looking wing fuselage fit Can also used seal access hatches cowlings etc Part No 200-251$159 TAPER ACETM Rib Profiler makes tapered eliptical wing design easy Works faster computer Adjusts locks size rib instantly Curve plates provided draw 3 different full symmetrical 3 different semi-symmetrical airfoils Flat bottom airfoils can also drawn Send check M 0 $2495 Jim Denaro Model Products 543 Bedford Street Concord MA 01742
Edition: Model Aviation - 1982/11
Page Numbers: 22, 23, 24, 25, 26, 27, 28, 29, 30, 113, 116, 117
NO OCR TEXT NO OCR TEXT aircraft coached another Jim decided build own Laser took air 1978 very little differ ence two aircraft Jims has shorter land ing gear slightly different cowl different paint scheme both planes basically metallic blue light yellow trim trim stars Jims different Leos Both Lasers will represent United States World Championships 1982 Europe Leo took another first Unlimited Jim came fourth National Aerobatic Champion ships Sherman TX October last year Henry Haigh flying modified Stehens called Super Star much same Lasers will also World Champs runner-up Leo Nationals Permit take short look back some what prophetic statement made Don Berliner 1973 article aerobatic airplanes talking about Stephens Akro days something going come alongto knock Pitts off its lofty perch day upon us would appear three out top five Nats flying versions original Stephens So much has written about exploits Leo Laser couldnt add anything new substance However Ihadthe pleasure ofmeet ing Leo Jim during 1981 National Cham pionships Sherman found out both fly RC During low-ceiling weather full-size planes grounded both flew model taken modi fied Stephens smoker kicks Super Akro ChipsJune 1981 MA dont know ever plan entering competition RC keep eye model few years back mulling over ~ouu viuw urn Ln uri wr tail feathers045 music wire Landing gear attachment single tapped hole middle holds terminating #26 solder lugs held 2-56 bolts fairing block Note slight toe-in wheels Lots plumbing needed engine companment Tur TIIIIflyVflflW wing tip tne guiae aio piioi perlumlirig preurnalun both fuel smoker tanks plus feeding engine smoker aerobatics maneuvers Note rib stitching ailerons mass balance 24 Model Aviation underside wing center section showing eron servo installed hooked up Attention detail pays off Just width enough four-across servos Pushrods cable type Receiver batteries need well padded MY WI1ILLJjINb V ANUIM V lE-C tLII j IVjY I-tlNLr/ IILL Ht IPLIW BACK AFThP I6YRS AIRR71Y TO SOLO THE 15a-WTEP AAHLLBET HETALbDTI-E ME RIGHTOUTOF OF FLOAT r TOGLIAR - NE SWTF R GRT DOWNTO THE COCKP T I-fE FLYING NI 4k HEASNT r THE CUBE-f THEGROI*JD DDrYLP NEDDP DO / JULY22 2j 14HOURSYOU ~7I/\1/Ax HAVE rwOArn-fougAgjo 1-4 D BALSA FIN AND RUDDER 1/2 BALSA TJRTLE DEC TO FIN POST1/4 50 FIN POST iili / 3/32 WIRE INTO ________3/16 TUBING FOR ______________________________ELEVATOR TIE 3/32 SHEET PILOT DECK /2 BALSA COWL DECK I/B PLY AlL SERVO MOUNT 4-40 SCREWS HOLD REMOVE-ABLE COWL/8 PLYWCOD RERJFTSF FRONT AND BACK AT CENTER SECTION Fl INCUT F7 7 1/4 HARD BALSA STABILIZER AND ELEVAlOR / 3/Bx 11/2 T EDGE STOCK I/S OOfl PLATE MOUNTS AILERON BELLCRANK I/Bx 3/8 TEIX SPAR F2 I/4PLYVIUOD I- AWMINUM MOUNT F 1 1/8 LrTI PLY BACKS UP RING SiDE SHEET SPLICE 1/2 BALSA BC7IrON 3/4 BALSA SLOCK RING 7IA FOR NYLON SGREVVS 1/2 BLOCKSFP 1I/8PLYWCOD LG FILL 1/16 SHEET WEBS SIG 2 18 AWM BLANK 1 BLOCK PANTS TOP 4-40 FH SCREWS INTO TNUTS IN 1/4 PLY3/16 BALSA OUTBOARD LG MOUNT I/B Ply WCOD INBOARD WALLS ---- 7 R FROM I/4TO ZERO T-NUTS FOR SCREWS BALSA WING TIP DOUBLED I/B BALSA LEADING EDGE BUTT JOINTS OF 3/32 BALSA SKIN AILERON BEARING L4 WHEEL ON 1/16 MUSIC WIRE /850 STRINGERS 2 EACH SIDE 3/32 BOTTOM SHEET CROSS GRAIN ON 3/1650 LONGEFUNS I/B SHEET BALSA SIDES LOWER TD IS UPPER SIDES I/8X 3/B BOTTOM STRINGERS TAPER TO REAR I/B X 1/4 HARD BALSA TOP-BOTTOM SPAR CAPS 3/32BALSA RIBS I/B MED HARD SPAR HALF NOTCH OVERALLRIBS what build next decision made de velop aerobatic model RCnot FAI style flying aerobatic ship would per form like its full-size counterparts should able Aresti-type flying have smoker forvisual effects doing air-show-type flyingon weekends Super Akro Chips born After caine called Dusty little larger Chips some slight changes force arrangement Inevitably led best aerobatic machine flying today 1980 World Champion Laser cant improve something close perfection already wrote Bob Morrison Repla-Tech purchased book aerobatic airplanes RS-5000 set color pictures taken Laser World Champs Ceske Budejovice Czechoslovakia 1978 mate rial used basis forthe model ofthe Laser presented planning entering model Sport Scale competition just like build fly Scale models fun weekends suggest obtain mate rials Repla-Tech 48500 McKenzie Hwy Vida OR 97488 pics three-views used presentation book model Sport Scale contests models first contest Houston TX Manned Spacecraft Center RC Club Scale Rally October 31 November 1 1981 frontof some very strict judges Laser took first place nosing Out some fine Scale models soit obviously has po tentialtobe awinnerin competitions Ontheother hand build fly just enjoyment will find construction model un complicated average kit sport flying winter day home town Victoria TX 450 sunny light variable winds model first took air arrived field about 815 am unloaded model gear About 10 minutes later good buddy photographer fellow modeler Leon Folse arrived equipment took about 30 minutes get engine ad justed running just right no problem smoker cowl screwed both tanks fuel smoker topped off fired up taxied out lined up Pushed throttle against firewall fed littie right rudder about 100 ft off itself Made shallow right climbing turn No trim needed straight flight back Next made 1800 turn tried roll little slow getting around Made turn back kicked smoker did inside loop tracked correction Chopped smoker made turn flipped smoker again did Cuban 8 no wind smoke hanging good grinning 26 Model Aviation wing panels being assembled rear top sneeting gieo pinned Note tiP Ji95 wie-in snim under center section tapered blocks positioned midway half TSF 8SF B 02 TEUTOPLT*40410100 00 TOI sF-Fl F5A 4-0100p VS/Cr Fl1000006 ES0000F0*0F0IiI Fl4050*FTS00 78SF500 TTOLOTC0000S 1640400-4ASFR 2OO IC 00000 2048 03003 02 Coso3000030CAW.0kT000 4 00T 004004 snap thrill time Ah joy second flight model did Lomcevak smoker going quite sight did inverted flight fullpower hammerhead four inside consecutive snaps full power outside snap reverse knifeedge vertical climbing rollall smoker going Two flights put morning must say real joy fly smoker gives added dimension tried tail slide entered beautifully lack finesse sticks did allow complete maneu ver Im gonna practice 40 moves plane just about scale speed Vertical maneuvers good feel no need larger engine thats thing should enough room up front fit Study pians reading structions should have problem building off-the-shelf model supplies Construction Select balsa carefully model will turn out rightweightforgood aerobatics Heres trick thats useful models check sheets balsa will find will balance heavy end good rule thumb littie catch saying re member isfrontand center Always puttheheavy ear ear Went straight Out cut off landing no problem end toward front fuselage and/or smoker made turn dove little started aileron links put next hole center wing smoke did knife-edge across field Ive horn little throw tanks never model fly well test flight filled another flight Engine running pushed wing has built order complete After knife-edge turned downwind stick forward K&B 40 started sing- fuselage would good place start throttle eased back Made turn ing As accelerated smoker kicked construction parts full-size difinal settled near-perfect landing rolled about 50 feet moresmoke pouring out mensions can taken directly plans could have left wheel pants takeoff runway pulled up 450 did inside number ways make ribs 1 w STASILIZELEVATOR LB SEOCO1AABLBOVW _________________w __Lw LEFT PANEL -J 0 -J ci VPSAVONALSAz IIZIP__a w ____-N 0CO -J LA 0 QY ______ ___ __CZiZIZiiz /PABOULASER ZOO OARER November 1982 27 construction has b reuy ror puooing riniuncanopy maseu protection built competition get scale documentation Repla-Tech International make tracings ribs 2 use carbon paper over balsa direct transfer 3 use root tip ribs 10 blanks balsa stacked carving latter method put tip rib outside end stack root rib between first second pieces use Y16 ply patterns root tip ribs carving way spar pieces cut same piece straight-grained balsa ensure uniformity Pin piece hard alsa over plans shown spar cap Glue spar rear edge slots up keeping 900 workbench Check fit rib trim necessary Pin over plans shown 6 square jig straight piece inside piece leading edge Check-fit rib again OK glue place pin ning securely jig Cut sheet Y x 3 x 31 medium C-grain balsa half along length trailing edge sheets Glue piece 31 balsa edge of sheets 900 angle Note side view fuselage drawing shows root rib also rib *8 wing plan Glue trailing edge sheet rear rib firmly butting firmly against Check-fit piece hard alsa top spar cap has fit flush ribs Glue place fitted Lay piece medium A-grain Y32 sheet balsa over ribs front spar Sand angle edge fits -in leading edge piece Mark excess over rear edge spar trim off Glue pin sheet place making sure ribs still pinned down firmly 3/16-in jig use slower drying cabinet-type glue over ribs model-type cement along leading edge dope-type finish employed model 28 Model Aviation lIe UdbiL iueiaye P preuy weii uriuerway nere dOle /8 sneet ror pushrod exit Wing behind still needs center sheeting DOLLOITI stringer smuer tdflN Vs r ilfeWdil 0110 74lll 111011 have glued place Note T-pins easy-on-finger pushing Mere inc anoing gear ueing ilUCO 10-YIP ply i lie IUCI narrnaireauy rids installed has engine/mount fitting 115 pic snuws ill pora fit 5LCP5 rl 00110 lI1 Lilt d 0111 5CISLIUIi LP polyethylene sheet will separate wing fuselage Shes really beginning take shape now major components place Cockpit inside carved /s canopy Note shape being carved rear cockpit Fuselage side piece TSF above wing has rough-carved Cutthe aileron crank plate Ply mount crank Cut fairleads pushrod 1/16 ply pushrods made /16-in copper-coated weldingrodit doesnt rust solders quite well bends easily made Make bend aileron crank slip crank slide through holes ribs slipping fairleads go glue aileron crank plate ot cutouts ribs 6 & 7 Cut glue /32 x strips ribs Dont sheet cen ter section time glue has driedon panels unpin workbench use inside flush door assemble panels full wing doors flat straight pins push easily Draw straight line 6 ft long about 6 edge long side Draw line 900 6-ft line its center Draw two lines 900 long line spaced 29 center line pin tip jigs lines Place scrap piece /32 sheet center line crossed long line Make sure lines jigs match long center line builds proper tip washout wing Pin panels down center section lining up rear edge spar over long line mark tip jig Place 9/16-in shim under trailing edge center section pin down About halfway out panel trailing edge shim assure straight trailing edge top sheeting glued Note pic tures wing being assembled Epoxy ply joiners spar ply piece RB trailing edge Choose matching sheets /32 balsa top sheeting orderto have bal anced wing keep having add lot weight tip Fit trim top sheeting ac cording drawing right panel very careful gluing top sheeting wing just about impossible twist untwist once sheeting place Dont sheet center section over leading edge yet sheeting glue has thoroughly dried remove wing board turn over pin down after removing jigs board Epoxy ply IA ribs inside #1 ribs flush bottom curve Sheet bottom center section behind spar Glue i/ balsa webs between ribs leading edge trailing edge sheet Turn wing over Epoxy plate place over ribs 1 Sand ling edge flush top sheeting Pin panel down bench along trailing edge over wax paper poly sheet Take trailing edge stock check-fit -in trailing edge Sand needed tight fit cut proper angle center sec tion glue pin wing Repeat pro cedure other panel Using long straight edge trim trailing edge stock shown plans Sand trailing edge makes smooth transition wing sheeting Layout aile rons ball-point pen cut away Sand angle leading edge ailerons shown rib #8 wing drawing Sand -in leading edge piece flush sheeting Cut piece -in sheet little wider leading edge glue wing complete i/4.in.thick leading edge method laminating leading edge has three positive results stronger one-piece leading edge less susceptible warping easier sand proper shape due glue joint acting guide Glue t tips dont glue portion makes up aileron mass balance Sand tips shape around tip rib cut off aileron mass balance bal ance glued pinned toothpicks aileron Fuselage have access x 48 sheets balsa makes job fuselage side fabrica tion little easier glue two sheets x 36 together form six-inch sheets three times sidejointto made follows Cut two 6 x 8 pieces ofthe sheets Make dovetail joint end x 36 sheets shown side view fuselage plans make matching joint two 6 x 8 pieces Glue together basic sides Lay out thrust line sheet ball point pen use reference point fully laying out side Basically straight lines Refer isometric sketch ar rows side view layout made layout completed cut side out use pattern make another Cut doublers t glue sides Glue /i6 sq longerons side cut cabin section sides away set aside time being Pin sides over top view rear landing gear plate tail post Slide former down its place pin Use 900 triangle make sure sides square work surface cyanoacrylate glues come handy right After formers glued place top onerons glued cut outs Pull top -in sides Thin 1/54 ply pieces FC RC glued epoxy form cowlA good sanding job will givethis kind appearance nose blockand shape Two layers FC appliedply cowl sides fair nicely cowling top November 198229 Ille V4Ifl tranyuar UUW UULIFIU pIVtVb Ildv U~II jiuu havethe 1/ x 1/4 rear strips Note maple blocks nylon wing bolts Ply cowl formers Cl C2 glued place rear 1/ax 1/4 strip sanded taper vent hole cut engine bay forward Cl stabilizer mounts right behind former F-7 glue flush former angle Glue t filler pieces place shown side top views fuselage rear Install tubing Sullivan cable pushrod GRC-S using sandpaper wrapped around -in dowel forthe hole inthe balsa sheet exit point Cut turtledeck sides TD including slot stabilizer medium light a Unpin fuselage plans Cut BSF fuselage side fairings a glue place Gluethe tringer BSF tothetail post along top edge fuselage side Glue turtledeck sides place clamping clothespin rear bring sides together over tail post Glue /32 balsa bottom sheeting place dry sand flush sides Mark cen ter line bottom sheeting behind LGP tail postalso two lines -in side extending LGP 3 behind F5 Glue s stringers place lines sand center taper 3 hind F-S tail post Check-fit /i ply LGP Trim doublers needed plate fits flush sides Epoxy place Lay out firewall center thrust lines Place engine mount overthese andlayoutthe bolt holes going use solid bolt method mounting drill holes put flat washer bolt push through firewall holes rear Cut three piece 040 music wire about inch long making slight bend middle solder head slots Install engine mount tighten nuts mount snug against firewall Smear 5mm epoxy liberally over bolt heads washers wire method has worked well models has advantage com pletely fuel-proofing engine compartment rest fuselage epoxying done later Glue firewall place epoxy Glue /i ply tank floor place between firewall F-3 Assemble SS-8 fuel tank RST-6 smoker tank leave tubing long enough pass firewall about inch extending engine compartment use three-tube system tanks pluggingthe fill tube after fill ing leaving vent open facingthe prop blast slight pressure tank has always given good engine runs attitude smoker tank tubing tee made stalled pressure tubing behind valve tube run front cowl used fill smoker tank valve closed keep flooding crankcase smoke oil line plugged along vent line after tank filled Plug -in plastic caps come tubing purchased rolls may able get heating plumbing air-conditioning dealer Install throttle pushrod smoker valve pushrod tubing time using cabletype pushrods Glue -in triangle pieces F-l F-3 Cut slot right fuselage side clear engine cylinder install engine Pack foam rubber around tanks glue -in top bottom forward blocks place Cut landing gear Sig 2 x 18 x /32 aluminum landing gear blank Drill axle mounting holes bend according pat tern fairing block covers gear held 4-40 bolt tapped cen ter landing gear Place gear over LGP square up Mark mounting holes drill through LGP install blind nuts lockwith dab epoxy Glue FP- 1 FP-2 ply pieces place Glue rear wing holddown plate re cesses doublers D-2 Cut aple blocks size epoxy place shown top side views Sand wing center section leading trailing edges until good fit obtained fuselage wing saddle Glue ply piece WP wing trailing edge Center wing saddle pin down Measure tail post tip shift wing until square fuselage Drill mounting holes down through wing maple blocks Remove wing tap blocks -20 Glue bottom front center section sheeting wing Run -in drill through ply plate bottom sheeting Glue top center section sheeting wing runthe -indrillthroughthis sheetfromthebot tom up Bolt wing place fuselage Lay some poly Saran Wrap over wing pin formers F3A F5A place Glue triangle top fuselage side pieces Continued page 113 30 Model Aviation Cheek cowl bumps nave nssea ana sanaea Nose snape aria position main cowl Author works foam avoid dings nemuvanie SeUtluri 01 LUWI lidS UCil LUL away ailuilly ya lialil blocks fitted bottom stringers glued sanded OOZ H35V1 LASER t 500 orderfull-size plans Brad Shepherds Laser 200from MA will begiven free set water-transfer decals shown decal has all-yellow lettering proper size forthe model reproduced smaller magazine black background contrast What doing winter prospect long cold winter has got down let OrLine R/C kit take chill off OrLines classic World War biplanes favorite winter building project novice expert alike new Y4 scale Fairchild 22 sure provide plenty excitement its gr8ceful lines begin take shape workbench can bring back romance Immelmanns dogfights winter long two airplanes will never go out style Sopwith Pup Fokker DVII something winter Warm up OrLine Fairchild 22 Sopwith Pup Fokker DVII Wing span 98 Wing span 67/2 span 72 Wing area 1617 sq inWing area 1586 sq inWing area 1480 sq Power 2 cu Quadra r 60 90 r 60 90 $18950 $11950 $11950 ci Wi ke Cr OrLine Radio Controlled Aircraft Mfrs ox 12501 Salem Oregon 97309 phone 503 362-1606 ever saved over three dozen Joe Ott kits kits included mahogany card board sheet parts WW II shortages bass wood strips tissue glue kits may have dated 1940-1 944 built sold several Americas Hobby Center Still have eight hand Wild cat Mustang Spitfire Brewster Dauntless Stuka etc boxes area bit tattered cant swear glue good Super Jet old-timer fans inter ested would part couple would happy donate couple AMA Museum heavens sakeguys dont write ol Bill Keiths address Box 135 Division St RD No 2 Galway NY 12074 doubt hell able answer everyone wheres sporting blood Correction recent column spoke flying Cessna 120 flaps own ers pilots chide us politely 140 Both basically similar al though electrics other stuff improved 140 flaps added remember having two bad mags 120 cross-country buy elec tric bit confused numbers having also flown four-place 170which flies bet ter its trike descendantswhich assumed 140 Memory plays tricks also slight time no takeoffs land ings both immortal Airmaster prewar vintage 195 impressive hunk machinery AU friendly critics agree flaps 140 did next nothing Bob Benjamins search authentic Aeronca K plans Ive swamped ad vicedo know Bob Lopshire Bob Karlsson has local use real plane nearby too Karlsson noted Scale man meet him contest might beg him bended knees Bill Winter 4426 Altura t Fairfax VA 22030 Laser Model/Shepherd Continued page 30 shown side view Pin top sides place formers F3A F5A Slip former F-4 place eyeball top see square straight glue sides formers Glue /32 sheet F-4 forward cockpit floor Glue Vs x longerons F-4 F-S Glue F5B place Glue TSF side fairings place Glue -in side sheets F-4 F5A Remove cabin section glue -in dou blers inside side sheets between F-4 F5A op longerons Glue -in sheetovertheturtledeck7/g-in behindformerF-5 Glue tab -in top sheet 2-in forward block over fuel tank Glue -in sheet over cabin section Mark center forward rear -in blocks 5bin section drill us-in holes marks dowels Cut dowels length Hot Stuff top blocks Place cabin section back wing Pin down drill holes 4-40 FR bolts through middle dowels Remove cabin section install 4-40 blind nuts under ply tabs Taper top holes dowels screw cabin section Cut former F-i Ply Mark center Continued page 116 II ~R/C GOODIES P 0 BOX 192 NUYS CA91408 AIR213 764-1490FO 110 CAPITAL MODELS READY-TO-FLY 40 61 1Reg $15995SPAN SPECIAL $13995I $65OShipI Fully Built & Painted Controls Fuel Tank LG & Wheels installed Needs Ionly Engine Radio installationI 4 4Ce Reg $6950 SPECIAL $4995 POWER PACER R/C Battery Tester Charges & Cycles Tx & Rx batteries Locates bad cells & provides batt capacity readings cowTy TRAINER CRAFTAIR I57 ISPAN SHIP $650 Reg $4995 SPEC $3247 Kit available flatbottom semmsym Imetrical wing 2 4 Ch 19 40 Engine Calif add Sales Tax No CODs Brochure 60m US $170 Foreign 4 1/2% Surcharge VISA Visa Master Card November 1982 113 cam erty 25 cuin Engine wei9ht 4 lb 6 oz So lid state ignition Roller bearing flywheel Ball bearing rear Hemi-head chamber Schneurle ported 2 pc con rodbearings Chrome plated cylinder Magnesium case Balanced crank Pyramid reed intake Built-in choke Hem ht 725 $27900 retail Wi Ith Shaft center widest point 313 Total Width 525 Mounting plate prop 60 See local hobby shop Hell order stock CONTEMPO HOBBY PRODUCTS 11611 CANTARA ST H HOLLYWOOD CA 91605 division Con tempo Enterprises lines on front blocks Line up F-i glue place Cut canopy Sig 16 universal stock canopy Place canopy posi tion cabin section mark around top -in sheet Cut female pattern F-4 shown plans use shape turtledeck directly behind canopy Roughly cutout cockpit -in top sheet Shape theturtledeckfirstwith aknife andthenwith 100grit paper block Now place canopy cabin carve sand until have good fit Trim Out cockpit until about -in around inside canopy Remove cabin section unbolt wing bolt cabin section back Glue ertical strip front edge BSF Refer side view measure cowl outline mark fuselage sides out lines Cut glue -in triangle stock inside lines wide side glued fuse lage Note cross sections F-2 F-3 Cut C-i C-2 pieces /16 ply glue place Cut side away F-I C-l air venting taper trip Fair -in triangle formers Note bottom cowl section F-3 Cut four cowl pieces FC As ply section cowl doubled Check-fit cowl pinning place over F-i halfway over C-2 totally covering -in triangle outline Trim necessary good snug fit Epoxy fuselage sides inside cowl fuel-proof Epoxy inside cowl FC put place pin around Dont put both C-is engine side yet will glued inside cowl after cut off Cut two RC pieces /64 ply Check-fit trim needed Epoxy inside glue place over C-2 -in trian gle vertical poxy inside other FC pieces put overthe FC pieces already glued fuselage Use rubberbands around fuselage help hold snug existing cowl pin around edges cowl has dried sand FC pieces square F-i Rough-cut -in nose block glue F-i Using 100-grit paper block carefully sand top bottom blocks nose shape fairing smoothly ply cowl Take one-inch block little larger cowl bump cut side angle see Step i fuselage drawing cut outline rough shape Step 2 Using piece 80-grit paper wrapped around 4-oz dope bottle similarsized cylinder carefully sand inside con tinue trial-fitting ply cowl Step 3 good fit obtained cut sand outside rough shape Step 4 glue position per side view fuselage Sand bumps until fair smoothly cowling Any imper Tail surfaces Cut -in slot turtledeck top block forward fin goes using straightedge line up fuselage center line Bolt wing fit stab slot turtledeck sides Line up stab parallel wing rearview square fuselage top view Glue stab place glue finusing 900 angles made scrap balsa keep fin square stab wing drying elevator connecting bar made s tubing 332-in music wire Solder music wire holes tubing Recess elevators tubing goes Pin eleva tors down workbench proper distance apart butting against straightedge Fit bar elevators mark places music wire enters elevator Drill holes elevators pin back down making sure Epoxy bar place always cut slots fit hinges surfaces before finishing put model can done now hinges will glued after model completely finished Detailing Williams Bros 2-in sport pilot used few modifications try make look like Leo Loudenslager point nose sanded off slightly talc dope mixed stiff putty modify hair mixture will soften plastic careful takes about two days harden again globbed mixture head using some photos Leo guide dry coping saw blade raked across putty simulate hair painted hair yellow Pactra Namel followed mixture flat brown yellow lighten brown After dry saw blade used againto sim ulate strands hair takes little fiddlin results pretty good shirt painted flat red Leo saw pilot figure Sher man laughed Jim Roberts said looked just like himso guess its close enough Sport Scale inside cockpit sanded smooth /32 sheet instrument panel glued place cockpit painted Glue block balsa bottom pilot figure trim shape pilot Place pilot cockpit trim bottom block until head just clears canopy Paint block red match pilots shirt glue Glue canopy being careful smear glue Mask off can opy keep clean finishing model 116 Model Aviation fections bumps can smoothed putty before covering finishing Using Zona Saw cut cowl cabin section separation remove cabin Mark off portion front cowl re movable over engine Use Zona Saw back removed cut portion away Glue Vs ply hold-down tabs place Drill -in holes cowling dowels glue dowels Hot Stuff Drill through dowels ply tabs mount blind nuts under tabs Glue other C- 1 inside cowl flush rear edge shown top view Make smoker valve shown draw ing buy commercial valve Mount ply wood epoxy itto inside cowl per top view combination smoke chamber tail pipe muffler fabricatedfrom light steel tub ing -in soft brass tubing 12-gauge sheet metal flange stuffed steel wool cap ped 26-gauge sheet holes drilled order have enough heat vaporize fluid its necessary insulate whole cham ber six seven wrapped thicknesses light fiberglass cloth Make covers insulation tin can Bend sheetmetal overthe fiber glass solder edges holding place twisted wire until solder hardens genera tor works very nicely using Texaco almag fluid smoke dense has good hang time Cover engine mount bolts short pieces fuel tubing brush slow-driving epoxy inside engine compartment fuelproof model presented has doped finish Silk used bottom half fuselage wing remainder model covered lightweight silkspan Aerogloss metallic blue very close color Leos Laser Yellow trim used adding white until correct shade attained match decals best way found match decal color cut out 716-in-wide LASER 200 de cal attach itto blue-doped wheel pants proper placethen kept experimenting yellow until matched decal color dab blue may have added yellow really good match star sizes shown fuselage draw ing fuselage stars masked off doped white pattern ofthe wing stars made Y16 ply stars cut Sig white decal sheet decals come plans given two coats clear polyurethane after have dried thoroughly tail feather bracing made 045 music wire #26 solder lugs soldered ends held 2-56 bolts simulated rib stitching fin rudder stab elevators ailerons made Manila paper file folder material pizza cutter rolled over about 3/is-in intervals toindentitthenitiscutinto5/32-in strips doped surfaces effect good 15 feet Most folks have own favorite way stalling radio gear Mine shown plans ship balanced CG shown add ing weight build bird believe will give hours truly enjoyable aerobatic flyingIf go full route detailing will com petitive other Sport Scale models vari ous meets See Nats General Con fin ued page 33 competition some events such RC Pattern running five consecutive days World Championships involve much Natsin number people days hours Consider Nats competition begins November 1982 117 4 ft MODEL ENGINEHEAT SHRINKWING SADDLE FUEL LINETUBINGFOAM TAPE 1/16 dia Special formulated high grade Ideal sleeving plugs conblack neoprene tubing glow nectors Shrinkable using gas oil diesel fuels soldering iron cigarette lighter Part No 200-249$149Part No200-250$ 98 Kraft Systems 450 W California Ave Vista CA 920830 Division Carlisle Corporation Pressure sensitive adhesive side 1/16 x 4 Easy apply Makes neat looking wing fuselage fit Can also used seal access hatches cowlings etc Part No 200-251$159 TAPER ACETM Rib Profiler makes tapered eliptical wing design easy Works faster computer Adjusts locks size rib instantly Curve plates provided draw 3 different full symmetrical 3 different semi-symmetrical airfoils Flat bottom airfoils can also drawn Send check M 0 $2495 Jim Denaro Model Products 543 Bedford Street Concord MA 01742
Edition: Model Aviation - 1982/11
Page Numbers: 22, 23, 24, 25, 26, 27, 28, 29, 30, 113, 116, 117
NO OCR TEXT NO OCR TEXT aircraft coached another Jim decided build own Laser took air 1978 very little differ ence two aircraft Jims has shorter land ing gear slightly different cowl different paint scheme both planes basically metallic blue light yellow trim trim stars Jims different Leos Both Lasers will represent United States World Championships 1982 Europe Leo took another first Unlimited Jim came fourth National Aerobatic Champion ships Sherman TX October last year Henry Haigh flying modified Stehens called Super Star much same Lasers will also World Champs runner-up Leo Nationals Permit take short look back some what prophetic statement made Don Berliner 1973 article aerobatic airplanes talking about Stephens Akro days something going come alongto knock Pitts off its lofty perch day upon us would appear three out top five Nats flying versions original Stephens So much has written about exploits Leo Laser couldnt add anything new substance However Ihadthe pleasure ofmeet ing Leo Jim during 1981 National Cham pionships Sherman found out both fly RC During low-ceiling weather full-size planes grounded both flew model taken modi fied Stephens smoker kicks Super Akro ChipsJune 1981 MA dont know ever plan entering competition RC keep eye model few years back mulling over ~ouu viuw urn Ln uri wr tail feathers045 music wire Landing gear attachment single tapped hole middle holds terminating #26 solder lugs held 2-56 bolts fairing block Note slight toe-in wheels Lots plumbing needed engine companment Tur TIIIIflyVflflW wing tip tne guiae aio piioi perlumlirig preurnalun both fuel smoker tanks plus feeding engine smoker aerobatics maneuvers Note rib stitching ailerons mass balance 24 Model Aviation underside wing center section showing eron servo installed hooked up Attention detail pays off Just width enough four-across servos Pushrods cable type Receiver batteries need well padded MY WI1ILLJjINb V ANUIM V lE-C tLII j IVjY I-tlNLr/ IILL Ht IPLIW BACK AFThP I6YRS AIRR71Y TO SOLO THE 15a-WTEP AAHLLBET HETALbDTI-E ME RIGHTOUTOF OF FLOAT r TOGLIAR - NE SWTF R GRT DOWNTO THE COCKP T I-fE FLYING NI 4k HEASNT r THE CUBE-f THEGROI*JD DDrYLP NEDDP DO / JULY22 2j 14HOURSYOU ~7I/\1/Ax HAVE rwOArn-fougAgjo 1-4 D BALSA FIN AND RUDDER 1/2 BALSA TJRTLE DEC TO FIN POST1/4 50 FIN POST iili / 3/32 WIRE INTO ________3/16 TUBING FOR ______________________________ELEVATOR TIE 3/32 SHEET PILOT DECK /2 BALSA COWL DECK I/B PLY AlL SERVO MOUNT 4-40 SCREWS HOLD REMOVE-ABLE COWL/8 PLYWCOD RERJFTSF FRONT AND BACK AT CENTER SECTION Fl INCUT F7 7 1/4 HARD BALSA STABILIZER AND ELEVAlOR / 3/Bx 11/2 T EDGE STOCK I/S OOfl PLATE MOUNTS AILERON BELLCRANK I/Bx 3/8 TEIX SPAR F2 I/4PLYVIUOD I- AWMINUM MOUNT F 1 1/8 LrTI PLY BACKS UP RING SiDE SHEET SPLICE 1/2 BALSA BC7IrON 3/4 BALSA SLOCK RING 7IA FOR NYLON SGREVVS 1/2 BLOCKSFP 1I/8PLYWCOD LG FILL 1/16 SHEET WEBS SIG 2 18 AWM BLANK 1 BLOCK PANTS TOP 4-40 FH SCREWS INTO TNUTS IN 1/4 PLY3/16 BALSA OUTBOARD LG MOUNT I/B Ply WCOD INBOARD WALLS ---- 7 R FROM I/4TO ZERO T-NUTS FOR SCREWS BALSA WING TIP DOUBLED I/B BALSA LEADING EDGE BUTT JOINTS OF 3/32 BALSA SKIN AILERON BEARING L4 WHEEL ON 1/16 MUSIC WIRE /850 STRINGERS 2 EACH SIDE 3/32 BOTTOM SHEET CROSS GRAIN ON 3/1650 LONGEFUNS I/B SHEET BALSA SIDES LOWER TD IS UPPER SIDES I/8X 3/B BOTTOM STRINGERS TAPER TO REAR I/B X 1/4 HARD BALSA TOP-BOTTOM SPAR CAPS 3/32BALSA RIBS I/B MED HARD SPAR HALF NOTCH OVERALLRIBS what build next decision made de velop aerobatic model RCnot FAI style flying aerobatic ship would per form like its full-size counterparts should able Aresti-type flying have smoker forvisual effects doing air-show-type flyingon weekends Super Akro Chips born After caine called Dusty little larger Chips some slight changes force arrangement Inevitably led best aerobatic machine flying today 1980 World Champion Laser cant improve something close perfection already wrote Bob Morrison Repla-Tech purchased book aerobatic airplanes RS-5000 set color pictures taken Laser World Champs Ceske Budejovice Czechoslovakia 1978 mate rial used basis forthe model ofthe Laser presented planning entering model Sport Scale competition just like build fly Scale models fun weekends suggest obtain mate rials Repla-Tech 48500 McKenzie Hwy Vida OR 97488 pics three-views used presentation book model Sport Scale contests models first contest Houston TX Manned Spacecraft Center RC Club Scale Rally October 31 November 1 1981 frontof some very strict judges Laser took first place nosing Out some fine Scale models soit obviously has po tentialtobe awinnerin competitions Ontheother hand build fly just enjoyment will find construction model un complicated average kit sport flying winter day home town Victoria TX 450 sunny light variable winds model first took air arrived field about 815 am unloaded model gear About 10 minutes later good buddy photographer fellow modeler Leon Folse arrived equipment took about 30 minutes get engine ad justed running just right no problem smoker cowl screwed both tanks fuel smoker topped off fired up taxied out lined up Pushed throttle against firewall fed littie right rudder about 100 ft off itself Made shallow right climbing turn No trim needed straight flight back Next made 1800 turn tried roll little slow getting around Made turn back kicked smoker did inside loop tracked correction Chopped smoker made turn flipped smoker again did Cuban 8 no wind smoke hanging good grinning 26 Model Aviation wing panels being assembled rear top sneeting gieo pinned Note tiP Ji95 wie-in snim under center section tapered blocks positioned midway half TSF 8SF B 02 TEUTOPLT*40410100 00 TOI sF-Fl F5A 4-0100p VS/Cr Fl1000006 ES0000F0*0F0IiI Fl4050*FTS00 78SF500 TTOLOTC0000S 1640400-4ASFR 2OO IC 00000 2048 03003 02 Coso3000030CAW.0kT000 4 00T 004004 snap thrill time Ah joy second flight model did Lomcevak smoker going quite sight did inverted flight fullpower hammerhead four inside consecutive snaps full power outside snap reverse knifeedge vertical climbing rollall smoker going Two flights put morning must say real joy fly smoker gives added dimension tried tail slide entered beautifully lack finesse sticks did allow complete maneu ver Im gonna practice 40 moves plane just about scale speed Vertical maneuvers good feel no need larger engine thats thing should enough room up front fit Study pians reading structions should have problem building off-the-shelf model supplies Construction Select balsa carefully model will turn out rightweightforgood aerobatics Heres trick thats useful models check sheets balsa will find will balance heavy end good rule thumb littie catch saying re member isfrontand center Always puttheheavy ear ear Went straight Out cut off landing no problem end toward front fuselage and/or smoker made turn dove little started aileron links put next hole center wing smoke did knife-edge across field Ive horn little throw tanks never model fly well test flight filled another flight Engine running pushed wing has built order complete After knife-edge turned downwind stick forward K&B 40 started sing- fuselage would good place start throttle eased back Made turn ing As accelerated smoker kicked construction parts full-size difinal settled near-perfect landing rolled about 50 feet moresmoke pouring out mensions can taken directly plans could have left wheel pants takeoff runway pulled up 450 did inside number ways make ribs 1 w STASILIZELEVATOR LB SEOCO1AABLBOVW _________________w __Lw LEFT PANEL -J 0 -J ci VPSAVONALSAz IIZIP__a w ____-N 0CO -J LA 0 QY ______ ___ __CZiZIZiiz /PABOULASER ZOO OARER November 1982 27 construction has b reuy ror puooing riniuncanopy maseu protection built competition get scale documentation Repla-Tech International make tracings ribs 2 use carbon paper over balsa direct transfer 3 use root tip ribs 10 blanks balsa stacked carving latter method put tip rib outside end stack root rib between first second pieces use Y16 ply patterns root tip ribs carving way spar pieces cut same piece straight-grained balsa ensure uniformity Pin piece hard alsa over plans shown spar cap Glue spar rear edge slots up keeping 900 workbench Check fit rib trim necessary Pin over plans shown 6 square jig straight piece inside piece leading edge Check-fit rib again OK glue place pin ning securely jig Cut sheet Y x 3 x 31 medium C-grain balsa half along length trailing edge sheets Glue piece 31 balsa edge of sheets 900 angle Note side view fuselage drawing shows root rib also rib *8 wing plan Glue trailing edge sheet rear rib firmly butting firmly against Check-fit piece hard alsa top spar cap has fit flush ribs Glue place fitted Lay piece medium A-grain Y32 sheet balsa over ribs front spar Sand angle edge fits -in leading edge piece Mark excess over rear edge spar trim off Glue pin sheet place making sure ribs still pinned down firmly 3/16-in jig use slower drying cabinet-type glue over ribs model-type cement along leading edge dope-type finish employed model 28 Model Aviation lIe UdbiL iueiaye P preuy weii uriuerway nere dOle /8 sneet ror pushrod exit Wing behind still needs center sheeting DOLLOITI stringer smuer tdflN Vs r ilfeWdil 0110 74lll 111011 have glued place Note T-pins easy-on-finger pushing Mere inc anoing gear ueing ilUCO 10-YIP ply i lie IUCI narrnaireauy rids installed has engine/mount fitting 115 pic snuws ill pora fit 5LCP5 rl 00110 lI1 Lilt d 0111 5CISLIUIi LP polyethylene sheet will separate wing fuselage Shes really beginning take shape now major components place Cockpit inside carved /s canopy Note shape being carved rear cockpit Fuselage side piece TSF above wing has rough-carved Cutthe aileron crank plate Ply mount crank Cut fairleads pushrod 1/16 ply pushrods made /16-in copper-coated weldingrodit doesnt rust solders quite well bends easily made Make bend aileron crank slip crank slide through holes ribs slipping fairleads go glue aileron crank plate ot cutouts ribs 6 & 7 Cut glue /32 x strips ribs Dont sheet cen ter section time glue has driedon panels unpin workbench use inside flush door assemble panels full wing doors flat straight pins push easily Draw straight line 6 ft long about 6 edge long side Draw line 900 6-ft line its center Draw two lines 900 long line spaced 29 center line pin tip jigs lines Place scrap piece /32 sheet center line crossed long line Make sure lines jigs match long center line builds proper tip washout wing Pin panels down center section lining up rear edge spar over long line mark tip jig Place 9/16-in shim under trailing edge center section pin down About halfway out panel trailing edge shim assure straight trailing edge top sheeting glued Note pic tures wing being assembled Epoxy ply joiners spar ply piece RB trailing edge Choose matching sheets /32 balsa top sheeting orderto have bal anced wing keep having add lot weight tip Fit trim top sheeting ac cording drawing right panel very careful gluing top sheeting wing just about impossible twist untwist once sheeting place Dont sheet center section over leading edge yet sheeting glue has thoroughly dried remove wing board turn over pin down after removing jigs board Epoxy ply IA ribs inside #1 ribs flush bottom curve Sheet bottom center section behind spar Glue i/ balsa webs between ribs leading edge trailing edge sheet Turn wing over Epoxy plate place over ribs 1 Sand ling edge flush top sheeting Pin panel down bench along trailing edge over wax paper poly sheet Take trailing edge stock check-fit -in trailing edge Sand needed tight fit cut proper angle center sec tion glue pin wing Repeat pro cedure other panel Using long straight edge trim trailing edge stock shown plans Sand trailing edge makes smooth transition wing sheeting Layout aile rons ball-point pen cut away Sand angle leading edge ailerons shown rib #8 wing drawing Sand -in leading edge piece flush sheeting Cut piece -in sheet little wider leading edge glue wing complete i/4.in.thick leading edge method laminating leading edge has three positive results stronger one-piece leading edge less susceptible warping easier sand proper shape due glue joint acting guide Glue t tips dont glue portion makes up aileron mass balance Sand tips shape around tip rib cut off aileron mass balance bal ance glued pinned toothpicks aileron Fuselage have access x 48 sheets balsa makes job fuselage side fabrica tion little easier glue two sheets x 36 together form six-inch sheets three times sidejointto made follows Cut two 6 x 8 pieces ofthe sheets Make dovetail joint end x 36 sheets shown side view fuselage plans make matching joint two 6 x 8 pieces Glue together basic sides Lay out thrust line sheet ball point pen use reference point fully laying out side Basically straight lines Refer isometric sketch ar rows side view layout made layout completed cut side out use pattern make another Cut doublers t glue sides Glue /i6 sq longerons side cut cabin section sides away set aside time being Pin sides over top view rear landing gear plate tail post Slide former down its place pin Use 900 triangle make sure sides square work surface cyanoacrylate glues come handy right After formers glued place top onerons glued cut outs Pull top -in sides Thin 1/54 ply pieces FC RC glued epoxy form cowlA good sanding job will givethis kind appearance nose blockand shape Two layers FC appliedply cowl sides fair nicely cowling top November 198229 Ille V4Ifl tranyuar UUW UULIFIU pIVtVb Ildv U~II jiuu havethe 1/ x 1/4 rear strips Note maple blocks nylon wing bolts Ply cowl formers Cl C2 glued place rear 1/ax 1/4 strip sanded taper vent hole cut engine bay forward Cl stabilizer mounts right behind former F-7 glue flush former angle Glue t filler pieces place shown side top views fuselage rear Install tubing Sullivan cable pushrod GRC-S using sandpaper wrapped around -in dowel forthe hole inthe balsa sheet exit point Cut turtledeck sides TD including slot stabilizer medium light a Unpin fuselage plans Cut BSF fuselage side fairings a glue place Gluethe tringer BSF tothetail post along top edge fuselage side Glue turtledeck sides place clamping clothespin rear bring sides together over tail post Glue /32 balsa bottom sheeting place dry sand flush sides Mark cen ter line bottom sheeting behind LGP tail postalso two lines -in side extending LGP 3 behind F5 Glue s stringers place lines sand center taper 3 hind F-S tail post Check-fit /i ply LGP Trim doublers needed plate fits flush sides Epoxy place Lay out firewall center thrust lines Place engine mount overthese andlayoutthe bolt holes going use solid bolt method mounting drill holes put flat washer bolt push through firewall holes rear Cut three piece 040 music wire about inch long making slight bend middle solder head slots Install engine mount tighten nuts mount snug against firewall Smear 5mm epoxy liberally over bolt heads washers wire method has worked well models has advantage com pletely fuel-proofing engine compartment rest fuselage epoxying done later Glue firewall place epoxy Glue /i ply tank floor place between firewall F-3 Assemble SS-8 fuel tank RST-6 smoker tank leave tubing long enough pass firewall about inch extending engine compartment use three-tube system tanks pluggingthe fill tube after fill ing leaving vent open facingthe prop blast slight pressure tank has always given good engine runs attitude smoker tank tubing tee made stalled pressure tubing behind valve tube run front cowl used fill smoker tank valve closed keep flooding crankcase smoke oil line plugged along vent line after tank filled Plug -in plastic caps come tubing purchased rolls may able get heating plumbing air-conditioning dealer Install throttle pushrod smoker valve pushrod tubing time using cabletype pushrods Glue -in triangle pieces F-l F-3 Cut slot right fuselage side clear engine cylinder install engine Pack foam rubber around tanks glue -in top bottom forward blocks place Cut landing gear Sig 2 x 18 x /32 aluminum landing gear blank Drill axle mounting holes bend according pat tern fairing block covers gear held 4-40 bolt tapped cen ter landing gear Place gear over LGP square up Mark mounting holes drill through LGP install blind nuts lockwith dab epoxy Glue FP- 1 FP-2 ply pieces place Glue rear wing holddown plate re cesses doublers D-2 Cut aple blocks size epoxy place shown top side views Sand wing center section leading trailing edges until good fit obtained fuselage wing saddle Glue ply piece WP wing trailing edge Center wing saddle pin down Measure tail post tip shift wing until square fuselage Drill mounting holes down through wing maple blocks Remove wing tap blocks -20 Glue bottom front center section sheeting wing Run -in drill through ply plate bottom sheeting Glue top center section sheeting wing runthe -indrillthroughthis sheetfromthebot tom up Bolt wing place fuselage Lay some poly Saran Wrap over wing pin formers F3A F5A place Glue triangle top fuselage side pieces Continued page 113 30 Model Aviation Cheek cowl bumps nave nssea ana sanaea Nose snape aria position main cowl Author works foam avoid dings nemuvanie SeUtluri 01 LUWI lidS UCil LUL away ailuilly ya lialil blocks fitted bottom stringers glued sanded OOZ H35V1 LASER t 500 orderfull-size plans Brad Shepherds Laser 200from MA will begiven free set water-transfer decals shown decal has all-yellow lettering proper size forthe model reproduced smaller magazine black background contrast What doing winter prospect long cold winter has got down let OrLine R/C kit take chill off OrLines classic World War biplanes favorite winter building project novice expert alike new Y4 scale Fairchild 22 sure provide plenty excitement its gr8ceful lines begin take shape workbench can bring back romance Immelmanns dogfights winter long two airplanes will never go out style Sopwith Pup Fokker DVII something winter Warm up OrLine Fairchild 22 Sopwith Pup Fokker DVII Wing span 98 Wing span 67/2 span 72 Wing area 1617 sq inWing area 1586 sq inWing area 1480 sq Power 2 cu Quadra r 60 90 r 60 90 $18950 $11950 $11950 ci Wi ke Cr OrLine Radio Controlled Aircraft Mfrs ox 12501 Salem Oregon 97309 phone 503 362-1606 ever saved over three dozen Joe Ott kits kits included mahogany card board sheet parts WW II shortages bass wood strips tissue glue kits may have dated 1940-1 944 built sold several Americas Hobby Center Still have eight hand Wild cat Mustang Spitfire Brewster Dauntless Stuka etc boxes area bit tattered cant swear glue good Super Jet old-timer fans inter ested would part couple would happy donate couple AMA Museum heavens sakeguys dont write ol Bill Keiths address Box 135 Division St RD No 2 Galway NY 12074 doubt hell able answer everyone wheres sporting blood Correction recent column spoke flying Cessna 120 flaps own ers pilots chide us politely 140 Both basically similar al though electrics other stuff improved 140 flaps added remember having two bad mags 120 cross-country buy elec tric bit confused numbers having also flown four-place 170which flies bet ter its trike descendantswhich assumed 140 Memory plays tricks also slight time no takeoffs land ings both immortal Airmaster prewar vintage 195 impressive hunk machinery AU friendly critics agree flaps 140 did next nothing Bob Benjamins search authentic Aeronca K plans Ive swamped ad vicedo know Bob Lopshire Bob Karlsson has local use real plane nearby too Karlsson noted Scale man meet him contest might beg him bended knees Bill Winter 4426 Altura t Fairfax VA 22030 Laser Model/Shepherd Continued page 30 shown side view Pin top sides place formers F3A F5A Slip former F-4 place eyeball top see square straight glue sides formers Glue /32 sheet F-4 forward cockpit floor Glue Vs x longerons F-4 F-S Glue F5B place Glue TSF side fairings place Glue -in side sheets F-4 F5A Remove cabin section glue -in dou blers inside side sheets between F-4 F5A op longerons Glue -in sheetovertheturtledeck7/g-in behindformerF-5 Glue tab -in top sheet 2-in forward block over fuel tank Glue -in sheet over cabin section Mark center forward rear -in blocks 5bin section drill us-in holes marks dowels Cut dowels length Hot Stuff top blocks Place cabin section back wing Pin down drill holes 4-40 FR bolts through middle dowels Remove cabin section install 4-40 blind nuts under ply tabs Taper top holes dowels screw cabin section Cut former F-i Ply Mark center Continued page 116 II ~R/C GOODIES P 0 BOX 192 NUYS CA91408 AIR213 764-1490FO 110 CAPITAL MODELS READY-TO-FLY 40 61 1Reg $15995SPAN SPECIAL $13995I $65OShipI Fully Built & Painted Controls Fuel Tank LG & Wheels installed Needs Ionly Engine Radio installationI 4 4Ce Reg $6950 SPECIAL $4995 POWER PACER R/C Battery Tester Charges & Cycles Tx & Rx batteries Locates bad cells & provides batt capacity readings cowTy TRAINER CRAFTAIR I57 ISPAN SHIP $650 Reg $4995 SPEC $3247 Kit available flatbottom semmsym Imetrical wing 2 4 Ch 19 40 Engine Calif add Sales Tax No CODs Brochure 60m US $170 Foreign 4 1/2% Surcharge VISA Visa Master Card November 1982 113 cam erty 25 cuin Engine wei9ht 4 lb 6 oz So lid state ignition Roller bearing flywheel Ball bearing rear Hemi-head chamber Schneurle ported 2 pc con rodbearings Chrome plated cylinder Magnesium case Balanced crank Pyramid reed intake Built-in choke Hem ht 725 $27900 retail Wi Ith Shaft center widest point 313 Total Width 525 Mounting plate prop 60 See local hobby shop Hell order stock CONTEMPO HOBBY PRODUCTS 11611 CANTARA ST H HOLLYWOOD CA 91605 division Con tempo Enterprises lines on front blocks Line up F-i glue place Cut canopy Sig 16 universal stock canopy Place canopy posi tion cabin section mark around top -in sheet Cut female pattern F-4 shown plans use shape turtledeck directly behind canopy Roughly cutout cockpit -in top sheet Shape theturtledeckfirstwith aknife andthenwith 100grit paper block Now place canopy cabin carve sand until have good fit Trim Out cockpit until about -in around inside canopy Remove cabin section unbolt wing bolt cabin section back Glue ertical strip front edge BSF Refer side view measure cowl outline mark fuselage sides out lines Cut glue -in triangle stock inside lines wide side glued fuse lage Note cross sections F-2 F-3 Cut C-i C-2 pieces /16 ply glue place Cut side away F-I C-l air venting taper trip Fair -in triangle formers Note bottom cowl section F-3 Cut four cowl pieces FC As ply section cowl doubled Check-fit cowl pinning place over F-i halfway over C-2 totally covering -in triangle outline Trim necessary good snug fit Epoxy fuselage sides inside cowl fuel-proof Epoxy inside cowl FC put place pin around Dont put both C-is engine side yet will glued inside cowl after cut off Cut two RC pieces /64 ply Check-fit trim needed Epoxy inside glue place over C-2 -in trian gle vertical poxy inside other FC pieces put overthe FC pieces already glued fuselage Use rubberbands around fuselage help hold snug existing cowl pin around edges cowl has dried sand FC pieces square F-i Rough-cut -in nose block glue F-i Using 100-grit paper block carefully sand top bottom blocks nose shape fairing smoothly ply cowl Take one-inch block little larger cowl bump cut side angle see Step i fuselage drawing cut outline rough shape Step 2 Using piece 80-grit paper wrapped around 4-oz dope bottle similarsized cylinder carefully sand inside con tinue trial-fitting ply cowl Step 3 good fit obtained cut sand outside rough shape Step 4 glue position per side view fuselage Sand bumps until fair smoothly cowling Any imper Tail surfaces Cut -in slot turtledeck top block forward fin goes using straightedge line up fuselage center line Bolt wing fit stab slot turtledeck sides Line up stab parallel wing rearview square fuselage top view Glue stab place glue finusing 900 angles made scrap balsa keep fin square stab wing drying elevator connecting bar made s tubing 332-in music wire Solder music wire holes tubing Recess elevators tubing goes Pin eleva tors down workbench proper distance apart butting against straightedge Fit bar elevators mark places music wire enters elevator Drill holes elevators pin back down making sure Epoxy bar place always cut slots fit hinges surfaces before finishing put model can done now hinges will glued after model completely finished Detailing Williams Bros 2-in sport pilot used few modifications try make look like Leo Loudenslager point nose sanded off slightly talc dope mixed stiff putty modify hair mixture will soften plastic careful takes about two days harden again globbed mixture head using some photos Leo guide dry coping saw blade raked across putty simulate hair painted hair yellow Pactra Namel followed mixture flat brown yellow lighten brown After dry saw blade used againto sim ulate strands hair takes little fiddlin results pretty good shirt painted flat red Leo saw pilot figure Sher man laughed Jim Roberts said looked just like himso guess its close enough Sport Scale inside cockpit sanded smooth /32 sheet instrument panel glued place cockpit painted Glue block balsa bottom pilot figure trim shape pilot Place pilot cockpit trim bottom block until head just clears canopy Paint block red match pilots shirt glue Glue canopy being careful smear glue Mask off can opy keep clean finishing model 116 Model Aviation fections bumps can smoothed putty before covering finishing Using Zona Saw cut cowl cabin section separation remove cabin Mark off portion front cowl re movable over engine Use Zona Saw back removed cut portion away Glue Vs ply hold-down tabs place Drill -in holes cowling dowels glue dowels Hot Stuff Drill through dowels ply tabs mount blind nuts under tabs Glue other C- 1 inside cowl flush rear edge shown top view Make smoker valve shown draw ing buy commercial valve Mount ply wood epoxy itto inside cowl per top view combination smoke chamber tail pipe muffler fabricatedfrom light steel tub ing -in soft brass tubing 12-gauge sheet metal flange stuffed steel wool cap ped 26-gauge sheet holes drilled order have enough heat vaporize fluid its necessary insulate whole cham ber six seven wrapped thicknesses light fiberglass cloth Make covers insulation tin can Bend sheetmetal overthe fiber glass solder edges holding place twisted wire until solder hardens genera tor works very nicely using Texaco almag fluid smoke dense has good hang time Cover engine mount bolts short pieces fuel tubing brush slow-driving epoxy inside engine compartment fuelproof model presented has doped finish Silk used bottom half fuselage wing remainder model covered lightweight silkspan Aerogloss metallic blue very close color Leos Laser Yellow trim used adding white until correct shade attained match decals best way found match decal color cut out 716-in-wide LASER 200 de cal attach itto blue-doped wheel pants proper placethen kept experimenting yellow until matched decal color dab blue may have added yellow really good match star sizes shown fuselage draw ing fuselage stars masked off doped white pattern ofthe wing stars made Y16 ply stars cut Sig white decal sheet decals come plans given two coats clear polyurethane after have dried thoroughly tail feather bracing made 045 music wire #26 solder lugs soldered ends held 2-56 bolts simulated rib stitching fin rudder stab elevators ailerons made Manila paper file folder material pizza cutter rolled over about 3/is-in intervals toindentitthenitiscutinto5/32-in strips doped surfaces effect good 15 feet Most folks have own favorite way stalling radio gear Mine shown plans ship balanced CG shown add ing weight build bird believe will give hours truly enjoyable aerobatic flyingIf go full route detailing will com petitive other Sport Scale models vari ous meets See Nats General Con fin ued page 33 competition some events such RC Pattern running five consecutive days World Championships involve much Natsin number people days hours Consider Nats competition begins November 1982 117 4 ft MODEL ENGINEHEAT SHRINKWING SADDLE FUEL LINETUBINGFOAM TAPE 1/16 dia Special formulated high grade Ideal sleeving plugs conblack neoprene tubing glow nectors Shrinkable using gas oil diesel fuels soldering iron cigarette lighter Part No 200-249$149Part No200-250$ 98 Kraft Systems 450 W California Ave Vista CA 920830 Division Carlisle Corporation Pressure sensitive adhesive side 1/16 x 4 Easy apply Makes neat looking wing fuselage fit Can also used seal access hatches cowlings etc Part No 200-251$159 TAPER ACETM Rib Profiler makes tapered eliptical wing design easy Works faster computer Adjusts locks size rib instantly Curve plates provided draw 3 different full symmetrical 3 different semi-symmetrical airfoils Flat bottom airfoils can also drawn Send check M 0 $2495 Jim Denaro Model Products 543 Bedford Street Concord MA 01742