NO OCR TEXT NO OCR TEXT Sailplane moves fast challenge Roy Lightel photograph ballasting itll penetrate 35-mph winds Ac celeration dive awesome pullout blasts 200-ft-dla loops will several vertical rolls speed bleeds off skilled hands its capable being put through broad array maneuvers mixing roll pitch functions speed-generating strong winds Orca can cover huge chunks sky seconds mandating pilots undivided concentration slows well landing gradually flaring nothing moves tail Ken has done great deal perfect pitcheron concept Positive slop-free linkages pro vide needed precision reliability fuselage ply box type contoured added wood wing made plyskinned foam fin glued between slab sides stabilizer bolts prototype sports really super finish achieved fibergiassing spray paint ing Itll dazzle friends course low-heat film could applied wing looks good too Built detailed plans Orca reliable distinctive eye-catching machine Its capabilities will challenge nerve skills rugged Sloper offers high level satisfaction stimulation exhilarationpunctuated moments sheer panic Construction parts pack available Further details provided end article Fuselage Cut two 2/2 x 36-in pieces /16 ply fuselage halves Position pieces together making sure bends run inward Mark lines shown plans 4- 14- 22- 29-in points Tack pieces together using rubber ce ment similar adhesive being sure top edges between 14 22 marks aligned Mark slab sides cut true edges perfect match Cut attach /16 ply doublers just forward fin leading edge add /I6 balsa rearward dou blers shown plan halves still tacked together add -in balsa doubler side up /l6 ply doubler add /16 balsa point tail end After trimming con tour ply repeat process other side matched sets Again halves still tacked locate drill holes main support tube drive pin axle slots Use sharp bits drill press wood backing Fuselage outlines can repro duced sheet balsa patterns made fol lows Place 4-in -wide sheet /32 A-in balsa under plans sharp point progressively outline slab side outer side view lines Cut along points make top bottom templates Use mark profile woods added top bottom slab sides best use thick pieces balsa rather laminations order avoid glue lines can partially sawn through cracked fit changing gles hatch block used make fe male mold may pine block Check fit 500 mAh battery pack foam receiver see much space required necessary move Fl forward servo space Make sure sides formers precisely aligned panels will askew Add inside nose block Add triangular stock A2 ply bottom Fin Use /6 C-grain contest balsa keep structure light possible Shape profile cut leading trailing edge slots ply edging Prepare spruce blocks elevator mounting 4-40 inserts Work blocks /6 thickness center fin Glue flat fin fuselage slab side Align sides straightness fin clamped between Glue piece / ply subdecking forward fin retain alignmeaApp1y -slower-setting glue other side clamp fin pre vent built-in turn fin tilt present correct twist ing fuselage add subdecking 26 Model Aviation authors friend Roy Lightel posing ot two identical Orcas shape distinctive black-and-white color scheme pattern design very reminiscent Its namesake Orca killer whale An advantage having no moving control surfaces tail feathers freedom design configuration allows can seen fish tail stabilizer BL8A RIB TRIP& - BflLA TOP& sorrm j PUt CORE PUt PLY UB DC$ OVER PLY 0 V BRA& TUBE BFILIfl SHEET FOArA CORE 4 PUt &KEET 1AV Voo NOrICO Ac ThAT NOIlIING BaCK AND ROLL RR CON TROLLED ENrIRLf 5VTff WINGS THAT5 WWIL O GcoD iDEA PINE NO9E BLOCR GL 4 PLY MEET 9PRUCE LE OD BRR& -% EXi FiLLED CIRCUIT BOARD 4 z 0 CD 2 CD -I 0 0 4 HARD BRLfl LOCI BLR BLOCK 2 I OVER PLY P BflTERt pieces Keeping pieces flat attach slow-setting cyanoacrylate glue CyA Divide top profile template 4in 14-in lines Use template sec tions mark top blocks profile pre paratory cutting wood pieces added Blocks can partially sawn through vertically bend different gles youre laminating layers apply glue toward fuselage centerline avoid sanding problems Place balsa crosspieces underside hatch block key Fit pieces razor saw blade can slipped between hatch ends adjacent pieces Shape fuselage hatch block place Its best contour harder woods first blend softer pieces Taper fin width blocks symmetrical section Fillet fill necessary Attach stabilizer base hatch block ends adjacent fuselage surfaces horizontal edges open ing will covered cloth Smear surfaces resin applying heat speed curing well-cured resin sands off white powder clogging sandpaper Sand whole thing pre cise block-to-fuselage fit Fine sand feathered edges spring up apply CyA press plastic wrap 1/6 EPOXY FILLED CIRCUIT BOARD 2-NA TAP FOR DIJO BALL LINK 1B1GENERAL I I ALL CRONY SECTIONS BALLED TO PLEADING AS FUSELAGE IS SHAP BELLCRANK10 THE SARNERS OFT _____________BOX AS ILlUSTRATED S ORCA REXUIRES RADI DRIVE PIN30 BITELEVON MIXING FUNC BLOCKSERVOS WITR NO 02 MORE TOROSE I/BPLVWOODI/B PLYWOOD ANTENNA ROLE-RUN THRU ON BALSA F-IF-2OTICK 36 /32 IYB PLYWOOD BACK ATE JKFEAAREA PINE BLOCKf NOSES/4 BALSABALGA BLOCKTKI-OTOCI I/B SIA COLLAR WITH SET SCREW FIBERGLASS RAYCH SEE TEXT 3/A BALSA BLOCK PUSH ROD PINE BLOCKO NOSE I BALSA BATCH BLOCKREGT S0JR5SfAC IAG0ASLOIRECEIVER 1111 SHEET LEADPINE BLOCK 1/PLY BOTTOMRARD BALSA 4 II -I-I/HII 90 BALLAST PLATEAK PLYWOOD Fill cracks other imperfections Red Devil Time Spackling Model Magic Filler similar product hatch will made later mold formed structure Supplies youll need original-product yellow can Simonize paste wax PVA release agent polyester resin medium heavy 28 Model Aviation nis view clearly displays tfle clean aerodynamic lines mat maKe tfl fliS airplane COUld lust aptly nave named atter shark instead killer whale urca s twin sister brother authors other Sloper identical except pattern scheme wing panels rotate both turn striking photograph Orcas tail feath-The disassembled stabilizer showing bot-pitch control An exaggerated left turn pic ers demonstrates elimination oftom lamination cut out installs withtured roll rate higher speeds moving control surfaces opens up wholea flush fit over its base Its made up ablazingly fast Dual-rate function recoinnew world possibilities designer1A2 ply core sheet balsa sidemended use different speed ranges Full-Size Plans Available. See Page 194 RE3/I6 SPRUCE OR HARD BALSA LEADINS ESSE FOAM CORE FIIL WITH EPOXY AND SCRAP DRIVE PIN BLOCK36 ESSE SAD BEVEL BOTTOM SKIN WISH BALSA 11/3055 BRASS TUBERIGHT WING PLAN ANSLES DOWN FOR DIREbRAL I/AR PLY SUER FOAM CORE BALSA SHEET"TRIM CORE AND ROUND FACINUSCURE TRAILINS ESSEFOR TIP FORMINS II/O CURE 1K SPRUCEORRUBSDRIVE PIN SLSA LEADINS AREACKSKIN I/lB BALSA FACINS ______________________________________ I/64 PLYWOOD WIND SKINS-----AIRFOIL AT ROOT _______________ OVER FOAM CORE EFT WING PLAN1113USD BRASS _____________________ -ANGLES COVE TRAILINS ESUE FOIL AT 36 I/O I/3D PLYWOOD STABILIZER CORE /3/ RIB STRIPS STAB CUTOUT FOR SEATINS SN STABILZER [v32][b-1-10-1-10]]-I - STABILIZEH TED WITH I/H BALSA lOP AND BOTTOM I 5 S MUSIC WIRE DRIVE PIN /I/RH PLYWOODTAPER BALSASTABILIZER MOUNTINS zsszI/B BALSA DOUBLERSUB-DECKINSTRI-STOCK TYPICALPLATE /4-AS NYLON BALSA B MUSIC WIRE-BSLT Il/SO S S FOTRISTOCS1-H- BRASS TUBEI/IA PLY L.LOS-1 ESASSERATED FUSELAGE TOP VIEW------ /BALSA ICENTER TUBESPACIND ROTRUDES TOBALSA BLOCH/I SPACE PANELSSPRUCE7/ [ I/USBALSABLOCK391 SUBRO INSERT 116 ID 55 SUPPORT ROD IN PARTS FBK WIThTRI-STOCHI/3D PLYWOOD3/B SR 5/16 USHY BAXA BELLCBANRS AND WINS CORESI/lB PLY SLAB SIDES 1/64 PLY DUB-DEAKINSFIN NOTE FIN MAY BE IL TO B OR SIDE VIEW/BUILT WITH CENTER I/R BALSA DOUBLERSCORE LIKE STABILIZER TO HERE - 14 FUSELAGE SIDE VIEW DDX~SECT~-/[ I_________________________II/ REsT---4 s SOFT BALSA BLOCKNFINGLSTOFILLET SLAG SIDESSPECIFICATIONS - I/WINS SPAS75 I SP2ALSA TRI-STOCISANTENNA STICK -sr EXCEPT AT BATCHWINS AREA409 SOIN II FILLETAIRFSL75% AMA LINEWEIURT49 HA SZ PLODBLRi05 LINELOADINOIS OZ / 55 FT I/3D PLY ENDSANGLE- HERE SLAB SIDESIU/HIS I-I/B BAD 14 5-5 SEGMENTOSCHANGE -SB II/30DIAI I REF--7 /OS-S SEGME T -IILIFEI VS IANGLE CHANQE 5IS345K I MODEL AVIATION 0 RCA PITCHERON CONTROLLED DESIGNED BY HARLEY MICHAELIS AMA 32343 LSF 023- LEVEL IV TRACING BY 3CE DEMARCO IALL RIBMTB RESERVED glass cloths such available K&B Fibergiassing fuselage Make sure surfaces have fine sanded Test determine catalyst drops will start gel process oz resin 10 minutes mix batches propor tion Remove hatch block lay up single layer K&B medium cloth block Roll toilet tissue sop up ex cess resin resin curing apply two layers medium cloth front belly area bringing up far lower slab side line Stagger overlaps min imize feathering work later Sop up ex cess Cut two layers medium cloth fit approximately 1 /2 forward fin tail end Fit first layer wrap up sides over filleted area over lap second layer easier feath ering Carefully smooth feather cloth after curing Cut additional layers medium cloth applied sections Fit third layer over first two filleted area apply heat least partially cure fit cloth over entire fuselage up fin un der stab base Go down around nose behind hatch Always sop up excess minimize overlapping cured areas will have sanded November 1989 29 FUSELAGE SLAB SIDE Left fuselage constructed using ply sides 14-in balsa doublers outside 1A2 ply bottom extends rear former 500mAh square battery pack receiver fit ahead front former Right fin edges slotted ply insets top DuBro 440 threaded inserts illustrated long bolts set spruce blocks Nylon bolts used secure stabilizer top fin later fit pieces together neatly possi ble can trim excess resin still soft Allow wrapped layers cure lightly smooth down rough spots Cut cloth off inward area around hatch block opening edges Block sand edges hatch block opening Finish off area around extreme nose end small pieces cloth additional coats resin Smoothing down can done stage fairly coarse sandpaper such No 120 take care cut through cloth After rechecking fit remove hatch block apply smooth coat resin glassed surfaces Allow cure apply resin wherever light re Close-up installed servos shown left-turn position After top skins stalled opening root filled Drive pins slip slots heavy-duty belicranks Hex-head screws collars seat drive pin notches firmly secure panels flects off surface Once entire area well sealed proceed wet sanding Use block heavier grit sandpaper knock off bumps go lighter grit paper such No 280 idea smooth surfaces flat until shine gone practice can expect small low spots Fill scratches remain ing surface depressions K&B brushing primer sands off powder cured Follow wet sanding mov ing down progressively finer grit paper No 600 No 1200 Stabilizer Build shown plan us ing lightweight balsa Cut bottom stabilizer oversize opening will lit over stab base Use wick action 30 Model Aviation Left The fin glued directly between slab sides /e ply added top bottom behind former complete ply box Correct warping tilting subdecking installed Right Balsa wood cut rough shape added sides final shaping Left mold foreground made directly over glassed fuselage hatch made mold fillet between fin slab sides gives one-piece look Right Tubes angled between facings dihedral Wedges epoxy filler smooth things up jig fore ground clamps -in-sq spruce holding vertically drill press drive pins will epoxied blocks after alignment steps Left After bottom wing skins have installed wing panels drive-pin blocks must carefully aligned explained text Refer back photo point top wing skin installed after alignment steps have accomplished Right drive pins must located precise lateral positions text explains wing panels will also precise lateral positions RED W85159 7550 Sari Gabriel Road cadeo CA 53422 1717 glue center core bottom CyA trim core edges Add top shape symmetrical airfoil ta pering toward tips Glass light cloth Its exasperating discover flaws after final painting can avoid situation spraying very light temporary coat cheap white quick-dry high-gloss en amel View model low-angle light find defects Fill larger flaws primer Fill tiny pits Zap wick off excess balsa shavings Remove temporary coat acetone lacquer thinner Fiberglass hatch Outline hatch A-in trim tape applied A2 away hatch block fuselage allow shrinkage Apply coat wax PVA surfaces hatch block fits will facilitate its removal later PVA dry fit block place wax block trim tape fuselage couple inches beyond tape edge Lightly buff wax apply PVA over Size layer medium cloth four heavier cloth mold will extend about inch beyond tape laying up hatch mold laminating resin such Evercoat No 561 has ad vantage over K&B resin cures tacky consistency bonds cloth surface K&B resin however may used desired Use 10-minute gel rate before Coat protected structure resin allow cure Position coat light layer glass cloth add four heavier ones succession Carefully separate well-cured mold hatch block Wash off PVA Sand wax fuselage using fine-grit pa per Wax apply PVA mold Brush K&B laminating resin Progressively lay up layer medium cloth two heavier applying K&B resin end wont tacky After allowing cure remove mold trim hatch tape line fine fit fuselage Ver tically position hatch ends A-in balsa mark inside half-moon pieces make rests glued fuselage key hatch Add block small hook attached Wing Ballast tubes used As indi cated plan ballast plates sheet lead can add over 2 lb weight Fit main tube facings extend core root cutting tubes themselves ex tend beyond root Roughen tube surface Make sure facings dont protrude above core surfaces fit snugly against tubes Epoxy fac tngs impart dihedral angle tubes ver tically between facings adhere Zap Prepare wedge-shaped pieces balsa almost completely fill space under over tubes liberally epoxy 32 Model Aviation $575 AVAILABLE AT AMERICAS FINEST HOBBY SHOPS $978$525 DISTRIBUTED BY B&P Associates Gives Total Flight Line FREEDOM new electnc starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 THE IVIAMA finest model building equipment manufactured Some comments Magic Magnet Builder Owners now a/o adeW 4hnodto 4h1 /hemaaaeheeao 4/I/fan /4zaera1 JIae/ae Ma J/wi%aa4L dealer order direct --500A Magic Magnet Builder contains 1 6x48 Steel Base Plate 30 Magnets 10 stands 10 sets nut & bolts $ 9450 500B Master Magic Magnet Builder contains 1 6x48 Steel base plate 60 Magnets 20 stands lOVert press 10 steps 20 rib holders 50 sets nuts & bolts $16895 503B Base Plate Extension 1 6x1 6 Steel Base plate building giants $ 2695 SOlA Unassembled Magnets 10 pak $ 1195 501 B Assembled Magnets 10 pak $ 2200 502 Stands 10 uprights primarily fuselage assy $ 950 504 Vertical press 5 pak holding spars leading trailing edges position$ 995 505 Steps 5 pak adjustible leading & trailing edge positioning $ 595 506 Rib Holder 10 pak Use magnet building faster $ 995 TELDON J LIND COMPANY 31St Caravelle Dr Lake Havasu City AZ 86403 1453 7970 Send self addressed stamped envelope catalop products M/C & Visa accepted Fill smooth core contour using Red Devil similar product Drive pin blocks installed later Wing skins cores parts pack cut wing leading edge LE end 1/2 in front wing trailing edge TE Use two 1 x 4-ft sheets /64 plywood make wing skins Cut bottom skins separate sheets align core leading edge extend core root Precisely mark tip contour inside evenly feather last 4 trailing edge down bottom lamination Trim contour core tip base top skin leaving about /2 balsa edging tip perim eter Attach bottom skins epoxy Precisely made heavy-duty matching bellcranks provided parts pack essential Open A-in hole No 23 bit Gently tap 3R-in length A-in-ID brass tube bearing prevent wobble bellcrank wire Prepare tube goes across fuse lage protrude A2 either side Similarly size A-in pivot wire Mount items Prepare A-in-sq 1 A-in-long spruce blocks center-drilled hole jig hold blocks vertically drill press can made pieces Y4 -in lumber piece notched / x Clamp blocks drill holes Wing alignment 0-0 respect fuselage under fin Place straight edge under fin extending mark 0o line wing area will bit off airfoil chord line Mount wings checking bottom wing skins par allel fuselage sides /32 clearance rotation Cut 4/2-in-long piece A-in wire Run through bellcrank slots add drilled blocks clothespins clamp bellcranks upright neutral posi tion Block up wing panels underside Make another block 34 thick place under long wire long wire pushed block squares holes drive pin blocks main rod Shim Y4-in block necessary panels 0-0 setting long wire hence drive pins centers ver tically arcs Extend arcs neces sary Rotate panel leading trailing edges skin parallel 0-0 line Fit facings between layer foam block wire pushed down tack drive pin block using CyA quick-set epoxy Allow about tween outboard end block end foam slot wire still down align panels other eye tack other drive pin block place Remove wings wire Secure blocks Size drive pins collars other end will protrude /16 cut beyond blocks After mounting everything place push bellORDERS SHIPPED DAY RECEIVED WARBIRD VIDEOS VHS OR BETA OUR 23RD YEAR ANY TWO VIDEOS ONLY $7595 ANY 3 VIDEOS ONLY $10795 SPECIAL IWIR@DU6IORY OFFER AILS VIDEOS ONLY $19995 WARBIRD CHECKOUT VOL 1 Flying P-40 Warhawk Corsair Hellcat SB2-A Buccanneer Avenger NF 1325 Programs2 Hr Only $3995 WARBIRD CHECKOUT VOL II Flying P-38 Mitchell Bomber P-61 Black Widow Invader NF 1454 Programsi 00 Mm Only $3995 WARBIRD CHECKOUT VOL 111 Flying P-51 Mustang Bomber P-39 Introduction P-39 Advanced NF 1514 Programslb Mm Only $3995 November 1989 33 CALL TOLL FREE IT CARDS Li Mon Drder Check Credit Card F add plete aeluxe kit features exact scale outlines balsa plywood construction light epoxy cowl wheel pants selected wood complete hardware flying wires full cockpit details 3views ohotos decals extensive instruction manual pan u euu sq area /2-1u/2 IDa 90-120 cu engine light epoxy glass fuselage cowl wheel pants complete hardware selected wood decals 3-views apan 00 iu sq ares -o IDa ou-1 cu engine epoxy glass fuselage cowl wheel pants light foam wing cores con test wood complete hardware decals Order direct Add $1500 shipping Use VISA MC check money order COD GOLDW AGE MODELS IO Iox 807 Ienn VaIIeq CA 95946 916 432-2928 S Fiberglass Cowls BAlSA USA Citabria Aerobatic Pro 2100 EAABPIane1050 1-3 Cub /4 scale wfengine BUD MAUIA A IUIHBSIRIES Aeronca Champion 40 1300 Citabria 40 size 13 00 Aeronca Champ /4 scale . 2100 Citabria 1/4 scale 2100 Mr Mulligan w/blisters 3100 CARL SOIDEE KITS Super Chipmunk 2100 Electric Glider 550 J-3 Cub 1200 DRY RIME MUELS J3/J4 15 scale 12 00 J3/J4 15 scale 17 00 GREAT PLANES CAP 21 40 size 1300 CAP 21 60 size 1000 Electric Cab 750 Super Aeromaster 1500 LANCE BAR AiRCRAFT UFS F4U open flaps 2100 P-Si 23 00 RV3 20 00 MUEI AIRPLANE NEWS Aero Faa 11 00 Super Hots 1100 Big Hots 1700 Knight Twister 3100 Liberty Sport B 2600 FREE CATALOG Best 40 Ever 4 Channel nch Span Semi-Symmetrical Wing 25 - 40 Engine 3 3-1/2 lbs Superior Performance Available Favorite Hobby Shop Guaranteed Satisfaction PICA Aeronca Sedan 1/ scale .. 1600 Cesana 1B2 I/ scale 2100 Jungmeister w/blisters 1000 T28Is scale2500 Waco 1/ w/blisters 2200 SI J-3 Cub w/engine 2100 Cub Special PA 11 2100 KadetSr 1100 Koagar 850 Skybelt 1300 SCALE PLANS MID MAulS Gloster Gladiator 1/4 scale .. 2600 PT1O e 2100 Super Marine S6B /4 scale 2500 Floats 70 long pair12600 Waco YMF-5 1/4 scale2700 WE TECHNICAL SERVICES PLANS Buster Wittmao Racer 2000 Cessna AW 1700 Curtiss Falcon 31 00 Spud XIII Cl 2600 WOULD ENGINE CAP 21 40 aize 14 00 Dragon Lady 1900 Robin Hood 99 2100 OTHER KITS ASTRO FLIGH1Perterfield 000 DAVE PLAflJungmeiater 2100 MIDWESTSuper Hots 1150 RC KITS Star Duster 2100 FIBERGLASS Dept MA Rt 1 Box 530 Goodview VA 24095 IFUMAflE WilMin thu smut us add StE ship plq cbinp Va us add 4%% sales tax U wuisms vISA MasteeCaid COU also aCcepted aid 52U shlpplq cbup Autslie cent US Wilts sblpplq darpa bets sdmrlq tsie siu us ubsi psiqe sad handllq puin ouins & lIWUhWiAflhU 703-890-6017 9am 9 pm EDT Send Si 00 8-page brochure featuring hundreds cowls wheelpants radial cowls BroChere free order eivaLeL B A3925-C SE 45th Court IDkIhh IJlJfufIunDIhIIb fillOcals FL 32671 S I9II 1444J Fill 4 904 694-3531 WARNING Dont fooled Johnny Come Latelys Soft Mounting good airplane effective soft mount used ones use accelerometers ensure LOWEST transmitted vibration backed years proven contest performance UNIVERSAL 2-yd engines 20 TO 61 TO USE. EVERYTHING INCLUDED FOR MOUNTING Available better Hobby Dealers order direct add $175 shipping MADE H USA manufacturer DISC-LOCK & HUSH FOAM doaler distribstorships invited PERFORMANCE PRODUCTS UNL 7093 E Dodge Rd Mt Morris Ml 48458 e Orders 3131 631 4wtue / accep crank against slab side push collar against belicrank minimal clearance Push tube panel against tube fuselage check %2 clear ance skins define lateral location drive pin make cut drive pin end epoxy scrap spruce butts against end Remove panels Rough up pin attach epoxy making sure notch faces up Zap pivot wire main tube place Add epoxy putty around inside tube Cut top wing skin extreme lead ing edge extending root match bottom skin about nd latter trailing edge tip Edge bottom skin balsa beveling top skin will form fine edge Shape foam inward rounded base top skin tip area Join top skins cores far 32-in mark cured invert panel Progres sively wick-glue skins together CyA along trailing edge 32-in point pressing straight stick last 1A bottom skin Wing tips Experiment pressing lift ing tip skins together various spots find optimal attach point before gluing Aim nice line around edge bit washout raked tip Wick join tips CyA trim excess top skin Remove 34 panels lead ing edge add shape LE Fill roots scrap wood ep oxy putty etc Make sure blocks pins buried epoxy Fibergiassing wing Prepare panels glassing fine sanding wipe clean Cut light glass cloth cover panel piece wrapped around leading edge Position piece top ex cess extending forward Using wide brush quick application smear resin everywhere except area around leading edge Work cen ter outward pull cloth both ends smooth out puckers Brush front back well making sure entire area thoroughly wetted Slit cloth tip curves Use roll toilet tissue sop up excess eliminating wet look Clean brush acetone Allow resin cure point panel can handled invert follow same procedure other side Pull cloth rearward smooth around leading edge wrap LE separately panel can handled its edge Sand recoat prepare painting same way fuselage Painting Finish sand dust off tack surfaces Choose clean environment spray painting drying own spray equip ment probably already have favorite paint Durable epoxies such made K&B adhere well properly prepared 34 Model Aviation VIBRA-DAMP BEAMS 21 50 ALUM TABS surfaces base white yields finelooking finish trim colors added Among inexpensive discount store brands Dutch Boy fast-drying spray en amel called Fresh Look delivers soft fine fan-shaped spray does especially nice job Keep moving spray overlap evenly possible Apply eight 10 light coats few minutes apart good coverage Dutch Boy white enamel No 3725 black No 3726 Wait five days instructed manufacturer mask add trim color paint youve used doesnt prohibit well-cured surfaces can worked deep sheen using polishing compound waxed Simonize step mini mizes skin friction can done both K&B Dutch Boy enamels Use servos 50-in/oz torque bet ter mount firmly Size adjust connecting links wing panels 0-0 alignment trim tabs set neutral Initial flight testing first thing check out right wing moves up left moves down left turn both wings move up front up elevator isnt case correct problem switching servo plugs Check model balances wardmost point indicated plan wing appears 0-0 alignment Make sure bellcrank ball links approximately vertical straight up position similar motion way dual-rate transmitter works best should have good throw trim tabs have dual rate set transmitter low rate adjust wing motion about 3R both upward downward elevator response trailing edge should have approximately % move ment high setting Similarly adjust aileron movement 3A up down stick response trailing edge low rate 1 high dont have dual rate adjust wing ai leron response per suggested low rate figures Find long stretch lawn grass prefer ably rise knoll first objec tive trim level flight worry ing about turn Due long stabilizer moment arm pitch action rather soft though allows brief moment get stick However its essential jack model up quickly flying speed youll have 20-ft one-second flight ending hard thunk no time ti midity Heave straight out bit nose up. hard Adjust trim tab necessary level flight mark fuselage meets wing trailing edge Center trim tab adjust linkage marked spot goal have wing near 0-0 neutral setting possi ble maximum penetration necessary put shim under stab front rear Continued page 148 Just bee ON PAIR OF 25 INCH sizes 15 6 WHEELS WEIGH JuST 3/4 OUNCE PRODUCTS 4560 Layhgh Rd. Hamilton Ohio 45013 Vcice 513 738-l576Fax 513 738-01521 R$kr4ft FOR THEDISCRIMINATING MODELER MUSEUM SCALE 1/5th Size Absolute Scale Plan sets show model type structure show iginal structure full scale ship Build exact replica fake whatever degree wish choice yours finest information available expert modeler Drawn authoratative sources sheets 30 X 77 Rhipped rolled HANRIOT HD1 3 sheets $3500 ROLAND DVIa & b 5 sheets $3900 1400 Gomes Rd Fremont CA 94538 November 1989 35 eFULL LINE QEQUADRA ENGINES PARTS ACCESSORIES UPERTANKS& SUPERMUFFLERS oFULLLINEOFZINGER WOOD PROPS SGIANT SCALE R/C PLANS SEND $1%FOR COMPLETE CATALOG TO DEALERALLEN SCOTT INQUIRIESQUADRA INVITIED RT 1 NEODESHA KS 66757316325-2821 SOPWITH PLJF 5 SHEETS $3900 $300 POSTAGE US $1000 POSTAGE OVERSEAS Service Ace Cirrus EK Futaba Heathkit Hobbyshack JR KGL K-Line KG Propo Kraft KSE Logitrol Novak Royal Tower Hobbies World Engines Ill Fly What Fix ** ** * * * **** ** * * *** ** *** *** * * * WANDIT * *Dealers Invited * * year Warranty * *CORD * torDry * Stick Abrasives *_ *A Keen Machine gives exceptional *sandingcontrol excellent finish * * 9995Basic xci 1 flat Wand *of 6 grits *10995Builder Special mcI 2 flat huff *round wand 5 6 grits *129-95Deluxe includes 3 ftat 2 half *rxund wands 2 buff wands *10 6 grits * *Additional Wands Abrasives available* *See local hobby shop *WANDflWG.21440S-BIBO P09se515183Odu1X75251-5183 $599 O op Nut use Electric Starters Made trom 6061 Aluminum strong enough allow over tightening weighs under 1 oz 1 diameter 1114 long 1/4 radius nose minimum AMA requirement 5/32 Torq Hole 314 thread depth can use thinnest props 11 thread sizes tit engines market Send us order & well mail out fast MADE IN THE USA B C PRODUCTS 111 N Starkweather Pampa Texas 79065 806 665-6361 D103210/32 EJ05805-8mm D123212/32 E206106-1mm EJ07107-1mm 11108108-1mm 111181258-125mm E101210-125mm E114281/4-28 111151625/1624 E 3824 3/8-24 VISA MASTERCARD MONEY ORDERS ACCEPTED DEALER INQUIRES WELCOME ENYA15 5-8mm 5S20 SS45 1/4-28 19 80 7-1mm 1208-1mm FOX 19 45 1/4-28 60 1205/16-24 HB ALL SIZES 1/4-28 HP 406-1mm 1205/16-24 others 1/4-28 IRVING ALL -28 K&B 19 61 1/4-28 05 105-8mm 15 12/32 206-1mm 21 50 1/4-28 6Oto 1205/16-24 108 3/8-24 ROSSI ALL 8-125mm SUP ERTIG ER 11 to 15 5-8mm 19 to 60 1/4-28 61 to 90 5/16-24 2000 6000 10-125mm SAllO 30 60 6-1mm 65 to90 7-1mm 120to2708-125mm WEBRA 28 61 1/4-28 80 908-125mm MALONEY 100 3/8-24 Orca/Michaelis Continued page 35 turns seem excellent differential Check out roll rate us ing small inputs first amount panel rotation present should make smooth steady turns Excess rotation causes rocking action typical overcon trol overcorrection slope launch Orca aggressively winds 15 mph higher Things really start get interesting turbulence reaches 25 mphand gusts 35 mph better full attention business required After hour airtime should fairly confident flying model up good ways Keep plane up high far out high airspeedsand hide women children hotdogging Experiment center-of-gravity farther aft quicker response pitch put will also flatten out ballooning tendency heavier winds experiment ballast Soaring high aloft resplendent its black-and-white killer whale markings Orca does its builder/flier proud parts pack includes precision-cut blue foam cores special bellcranks 1-ftlong 5/-in stainless steel rod Order VS Sailplanes 2317 N 63rd Seattle WA 98103 Price including shipping $2495 airfoil coordinates send pread dressed stamped envelope Harley Mi chaelis 26 5 Roosevelt Walla Walla WA 99362 enclose loose unglued 25 stamp cover photocopying costs Nats RC Aerobat/Verger Continued page 46 rockets llistics Now have West Coast Nats higher ever entry level FAI What turnaround pardon pun Wednesday morning beginning Ex pert Masters FAI competition Unlike Sportsman Advanced fliers classes fly qualifying rounds finats No weather problems artlingly clear skies what could want After Site 2 com pleted its first round learned flying stopped Site because intermittent ra dio interferenceaffecting FAI line new term sprang use lockout Ive heard glitch hold ckout Flying de layed investigate after several hours flying called off until next morn ing After much checking investigating specu lating decision made RC category direc tor Betty Stream continue Several frequencies changed radios swapped result few minor isolated problems re mained Virtually everyone felt correct deci sion made Lets just call oo interference Expert Master able finish qualify ing Thursday however FAI still round fly Friday morning before finals could flown 148 Model Aviation Special Fast Turnaround Now Available CALL Frequency Conversion $3500 Includes Crystals Certification Spectrum Analyzers Calibrated Test Instruments Large Inventory RIC Parts Crystals UPS US Mail Federal Express Used Mastercard Visa Accepted Send Large Self Addressed Envelope Brochures Duracraft Inc 1007 Orchard Grove Dnve V Royal Oak MI 48067 DuraPlane IlThe trainer rugged enough teach entire club fly Tell hobby shop owner want see toughest model aiplane money can buy
Edition: Model Aviation - 1989/11
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 148
Edition: Model Aviation - 1989/11
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 148
NO OCR TEXT NO OCR TEXT Sailplane moves fast challenge Roy Lightel photograph ballasting itll penetrate 35-mph winds Ac celeration dive awesome pullout blasts 200-ft-dla loops will several vertical rolls speed bleeds off skilled hands its capable being put through broad array maneuvers mixing roll pitch functions speed-generating strong winds Orca can cover huge chunks sky seconds mandating pilots undivided concentration slows well landing gradually flaring nothing moves tail Ken has done great deal perfect pitcheron concept Positive slop-free linkages pro vide needed precision reliability fuselage ply box type contoured added wood wing made plyskinned foam fin glued between slab sides stabilizer bolts prototype sports really super finish achieved fibergiassing spray paint ing Itll dazzle friends course low-heat film could applied wing looks good too Built detailed plans Orca reliable distinctive eye-catching machine Its capabilities will challenge nerve skills rugged Sloper offers high level satisfaction stimulation exhilarationpunctuated moments sheer panic Construction parts pack available Further details provided end article Fuselage Cut two 2/2 x 36-in pieces /16 ply fuselage halves Position pieces together making sure bends run inward Mark lines shown plans 4- 14- 22- 29-in points Tack pieces together using rubber ce ment similar adhesive being sure top edges between 14 22 marks aligned Mark slab sides cut true edges perfect match Cut attach /16 ply doublers just forward fin leading edge add /I6 balsa rearward dou blers shown plan halves still tacked together add -in balsa doubler side up /l6 ply doubler add /16 balsa point tail end After trimming con tour ply repeat process other side matched sets Again halves still tacked locate drill holes main support tube drive pin axle slots Use sharp bits drill press wood backing Fuselage outlines can repro duced sheet balsa patterns made fol lows Place 4-in -wide sheet /32 A-in balsa under plans sharp point progressively outline slab side outer side view lines Cut along points make top bottom templates Use mark profile woods added top bottom slab sides best use thick pieces balsa rather laminations order avoid glue lines can partially sawn through cracked fit changing gles hatch block used make fe male mold may pine block Check fit 500 mAh battery pack foam receiver see much space required necessary move Fl forward servo space Make sure sides formers precisely aligned panels will askew Add inside nose block Add triangular stock A2 ply bottom Fin Use /6 C-grain contest balsa keep structure light possible Shape profile cut leading trailing edge slots ply edging Prepare spruce blocks elevator mounting 4-40 inserts Work blocks /6 thickness center fin Glue flat fin fuselage slab side Align sides straightness fin clamped between Glue piece / ply subdecking forward fin retain alignmeaApp1y -slower-setting glue other side clamp fin pre vent built-in turn fin tilt present correct twist ing fuselage add subdecking 26 Model Aviation authors friend Roy Lightel posing ot two identical Orcas shape distinctive black-and-white color scheme pattern design very reminiscent Its namesake Orca killer whale An advantage having no moving control surfaces tail feathers freedom design configuration allows can seen fish tail stabilizer BL8A RIB TRIP& - BflLA TOP& sorrm j PUt CORE PUt PLY UB DC$ OVER PLY 0 V BRA& TUBE BFILIfl SHEET FOArA CORE 4 PUt &KEET 1AV Voo NOrICO Ac ThAT NOIlIING BaCK AND ROLL RR CON TROLLED ENrIRLf 5VTff WINGS THAT5 WWIL O GcoD iDEA PINE NO9E BLOCR GL 4 PLY MEET 9PRUCE LE OD BRR& -% EXi FiLLED CIRCUIT BOARD 4 z 0 CD 2 CD -I 0 0 4 HARD BRLfl LOCI BLR BLOCK 2 I OVER PLY P BflTERt pieces Keeping pieces flat attach slow-setting cyanoacrylate glue CyA Divide top profile template 4in 14-in lines Use template sec tions mark top blocks profile pre paratory cutting wood pieces added Blocks can partially sawn through vertically bend different gles youre laminating layers apply glue toward fuselage centerline avoid sanding problems Place balsa crosspieces underside hatch block key Fit pieces razor saw blade can slipped between hatch ends adjacent pieces Shape fuselage hatch block place Its best contour harder woods first blend softer pieces Taper fin width blocks symmetrical section Fillet fill necessary Attach stabilizer base hatch block ends adjacent fuselage surfaces horizontal edges open ing will covered cloth Smear surfaces resin applying heat speed curing well-cured resin sands off white powder clogging sandpaper Sand whole thing pre cise block-to-fuselage fit Fine sand feathered edges spring up apply CyA press plastic wrap 1/6 EPOXY FILLED CIRCUIT BOARD 2-NA TAP FOR DIJO BALL LINK 1B1GENERAL I I ALL CRONY SECTIONS BALLED TO PLEADING AS FUSELAGE IS SHAP BELLCRANK10 THE SARNERS OFT _____________BOX AS ILlUSTRATED S ORCA REXUIRES RADI DRIVE PIN30 BITELEVON MIXING FUNC BLOCKSERVOS WITR NO 02 MORE TOROSE I/BPLVWOODI/B PLYWOOD ANTENNA ROLE-RUN THRU ON BALSA F-IF-2OTICK 36 /32 IYB PLYWOOD BACK ATE JKFEAAREA PINE BLOCKf NOSES/4 BALSABALGA BLOCKTKI-OTOCI I/B SIA COLLAR WITH SET SCREW FIBERGLASS RAYCH SEE TEXT 3/A BALSA BLOCK PUSH ROD PINE BLOCKO NOSE I BALSA BATCH BLOCKREGT S0JR5SfAC IAG0ASLOIRECEIVER 1111 SHEET LEADPINE BLOCK 1/PLY BOTTOMRARD BALSA 4 II -I-I/HII 90 BALLAST PLATEAK PLYWOOD Fill cracks other imperfections Red Devil Time Spackling Model Magic Filler similar product hatch will made later mold formed structure Supplies youll need original-product yellow can Simonize paste wax PVA release agent polyester resin medium heavy 28 Model Aviation nis view clearly displays tfle clean aerodynamic lines mat maKe tfl fliS airplane COUld lust aptly nave named atter shark instead killer whale urca s twin sister brother authors other Sloper identical except pattern scheme wing panels rotate both turn striking photograph Orcas tail feath-The disassembled stabilizer showing bot-pitch control An exaggerated left turn pic ers demonstrates elimination oftom lamination cut out installs withtured roll rate higher speeds moving control surfaces opens up wholea flush fit over its base Its made up ablazingly fast Dual-rate function recoinnew world possibilities designer1A2 ply core sheet balsa sidemended use different speed ranges Full-Size Plans Available. See Page 194 RE3/I6 SPRUCE OR HARD BALSA LEADINS ESSE FOAM CORE FIIL WITH EPOXY AND SCRAP DRIVE PIN BLOCK36 ESSE SAD BEVEL BOTTOM SKIN WISH BALSA 11/3055 BRASS TUBERIGHT WING PLAN ANSLES DOWN FOR DIREbRAL I/AR PLY SUER FOAM CORE BALSA SHEET"TRIM CORE AND ROUND FACINUSCURE TRAILINS ESSEFOR TIP FORMINS II/O CURE 1K SPRUCEORRUBSDRIVE PIN SLSA LEADINS AREACKSKIN I/lB BALSA FACINS ______________________________________ I/64 PLYWOOD WIND SKINS-----AIRFOIL AT ROOT _______________ OVER FOAM CORE EFT WING PLAN1113USD BRASS _____________________ -ANGLES COVE TRAILINS ESUE FOIL AT 36 I/O I/3D PLYWOOD STABILIZER CORE /3/ RIB STRIPS STAB CUTOUT FOR SEATINS SN STABILZER [v32][b-1-10-1-10]]-I - STABILIZEH TED WITH I/H BALSA lOP AND BOTTOM I 5 S MUSIC WIRE DRIVE PIN /I/RH PLYWOODTAPER BALSASTABILIZER MOUNTINS zsszI/B BALSA DOUBLERSUB-DECKINSTRI-STOCK TYPICALPLATE /4-AS NYLON BALSA B MUSIC WIRE-BSLT Il/SO S S FOTRISTOCS1-H- BRASS TUBEI/IA PLY L.LOS-1 ESASSERATED FUSELAGE TOP VIEW------ /BALSA ICENTER TUBESPACIND ROTRUDES TOBALSA BLOCH/I SPACE PANELSSPRUCE7/ [ I/USBALSABLOCK391 SUBRO INSERT 116 ID 55 SUPPORT ROD IN PARTS FBK WIThTRI-STOCHI/3D PLYWOOD3/B SR 5/16 USHY BAXA BELLCBANRS AND WINS CORESI/lB PLY SLAB SIDES 1/64 PLY DUB-DEAKINSFIN NOTE FIN MAY BE IL TO B OR SIDE VIEW/BUILT WITH CENTER I/R BALSA DOUBLERSCORE LIKE STABILIZER TO HERE - 14 FUSELAGE SIDE VIEW DDX~SECT~-/[ I_________________________II/ REsT---4 s SOFT BALSA BLOCKNFINGLSTOFILLET SLAG SIDESSPECIFICATIONS - I/WINS SPAS75 I SP2ALSA TRI-STOCISANTENNA STICK -sr EXCEPT AT BATCHWINS AREA409 SOIN II FILLETAIRFSL75% AMA LINEWEIURT49 HA SZ PLODBLRi05 LINELOADINOIS OZ / 55 FT I/3D PLY ENDSANGLE- HERE SLAB SIDESIU/HIS I-I/B BAD 14 5-5 SEGMENTOSCHANGE -SB II/30DIAI I REF--7 /OS-S SEGME T -IILIFEI VS IANGLE CHANQE 5IS345K I MODEL AVIATION 0 RCA PITCHERON CONTROLLED DESIGNED BY HARLEY MICHAELIS AMA 32343 LSF 023- LEVEL IV TRACING BY 3CE DEMARCO IALL RIBMTB RESERVED glass cloths such available K&B Fibergiassing fuselage Make sure surfaces have fine sanded Test determine catalyst drops will start gel process oz resin 10 minutes mix batches propor tion Remove hatch block lay up single layer K&B medium cloth block Roll toilet tissue sop up ex cess resin resin curing apply two layers medium cloth front belly area bringing up far lower slab side line Stagger overlaps min imize feathering work later Sop up ex cess Cut two layers medium cloth fit approximately 1 /2 forward fin tail end Fit first layer wrap up sides over filleted area over lap second layer easier feath ering Carefully smooth feather cloth after curing Cut additional layers medium cloth applied sections Fit third layer over first two filleted area apply heat least partially cure fit cloth over entire fuselage up fin un der stab base Go down around nose behind hatch Always sop up excess minimize overlapping cured areas will have sanded November 1989 29 FUSELAGE SLAB SIDE Left fuselage constructed using ply sides 14-in balsa doublers outside 1A2 ply bottom extends rear former 500mAh square battery pack receiver fit ahead front former Right fin edges slotted ply insets top DuBro 440 threaded inserts illustrated long bolts set spruce blocks Nylon bolts used secure stabilizer top fin later fit pieces together neatly possi ble can trim excess resin still soft Allow wrapped layers cure lightly smooth down rough spots Cut cloth off inward area around hatch block opening edges Block sand edges hatch block opening Finish off area around extreme nose end small pieces cloth additional coats resin Smoothing down can done stage fairly coarse sandpaper such No 120 take care cut through cloth After rechecking fit remove hatch block apply smooth coat resin glassed surfaces Allow cure apply resin wherever light re Close-up installed servos shown left-turn position After top skins stalled opening root filled Drive pins slip slots heavy-duty belicranks Hex-head screws collars seat drive pin notches firmly secure panels flects off surface Once entire area well sealed proceed wet sanding Use block heavier grit sandpaper knock off bumps go lighter grit paper such No 280 idea smooth surfaces flat until shine gone practice can expect small low spots Fill scratches remain ing surface depressions K&B brushing primer sands off powder cured Follow wet sanding mov ing down progressively finer grit paper No 600 No 1200 Stabilizer Build shown plan us ing lightweight balsa Cut bottom stabilizer oversize opening will lit over stab base Use wick action 30 Model Aviation Left The fin glued directly between slab sides /e ply added top bottom behind former complete ply box Correct warping tilting subdecking installed Right Balsa wood cut rough shape added sides final shaping Left mold foreground made directly over glassed fuselage hatch made mold fillet between fin slab sides gives one-piece look Right Tubes angled between facings dihedral Wedges epoxy filler smooth things up jig fore ground clamps -in-sq spruce holding vertically drill press drive pins will epoxied blocks after alignment steps Left After bottom wing skins have installed wing panels drive-pin blocks must carefully aligned explained text Refer back photo point top wing skin installed after alignment steps have accomplished Right drive pins must located precise lateral positions text explains wing panels will also precise lateral positions RED W85159 7550 Sari Gabriel Road cadeo CA 53422 1717 glue center core bottom CyA trim core edges Add top shape symmetrical airfoil ta pering toward tips Glass light cloth Its exasperating discover flaws after final painting can avoid situation spraying very light temporary coat cheap white quick-dry high-gloss en amel View model low-angle light find defects Fill larger flaws primer Fill tiny pits Zap wick off excess balsa shavings Remove temporary coat acetone lacquer thinner Fiberglass hatch Outline hatch A-in trim tape applied A2 away hatch block fuselage allow shrinkage Apply coat wax PVA surfaces hatch block fits will facilitate its removal later PVA dry fit block place wax block trim tape fuselage couple inches beyond tape edge Lightly buff wax apply PVA over Size layer medium cloth four heavier cloth mold will extend about inch beyond tape laying up hatch mold laminating resin such Evercoat No 561 has ad vantage over K&B resin cures tacky consistency bonds cloth surface K&B resin however may used desired Use 10-minute gel rate before Coat protected structure resin allow cure Position coat light layer glass cloth add four heavier ones succession Carefully separate well-cured mold hatch block Wash off PVA Sand wax fuselage using fine-grit pa per Wax apply PVA mold Brush K&B laminating resin Progressively lay up layer medium cloth two heavier applying K&B resin end wont tacky After allowing cure remove mold trim hatch tape line fine fit fuselage Ver tically position hatch ends A-in balsa mark inside half-moon pieces make rests glued fuselage key hatch Add block small hook attached Wing Ballast tubes used As indi cated plan ballast plates sheet lead can add over 2 lb weight Fit main tube facings extend core root cutting tubes themselves ex tend beyond root Roughen tube surface Make sure facings dont protrude above core surfaces fit snugly against tubes Epoxy fac tngs impart dihedral angle tubes ver tically between facings adhere Zap Prepare wedge-shaped pieces balsa almost completely fill space under over tubes liberally epoxy 32 Model Aviation $575 AVAILABLE AT AMERICAS FINEST HOBBY SHOPS $978$525 DISTRIBUTED BY B&P Associates Gives Total Flight Line FREEDOM new electnc starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 THE IVIAMA finest model building equipment manufactured Some comments Magic Magnet Builder Owners now a/o adeW 4hnodto 4h1 /hemaaaeheeao 4/I/fan /4zaera1 JIae/ae Ma J/wi%aa4L dealer order direct --500A Magic Magnet Builder contains 1 6x48 Steel Base Plate 30 Magnets 10 stands 10 sets nut & bolts $ 9450 500B Master Magic Magnet Builder contains 1 6x48 Steel base plate 60 Magnets 20 stands lOVert press 10 steps 20 rib holders 50 sets nuts & bolts $16895 503B Base Plate Extension 1 6x1 6 Steel Base plate building giants $ 2695 SOlA Unassembled Magnets 10 pak $ 1195 501 B Assembled Magnets 10 pak $ 2200 502 Stands 10 uprights primarily fuselage assy $ 950 504 Vertical press 5 pak holding spars leading trailing edges position$ 995 505 Steps 5 pak adjustible leading & trailing edge positioning $ 595 506 Rib Holder 10 pak Use magnet building faster $ 995 TELDON J LIND COMPANY 31St Caravelle Dr Lake Havasu City AZ 86403 1453 7970 Send self addressed stamped envelope catalop products M/C & Visa accepted Fill smooth core contour using Red Devil similar product Drive pin blocks installed later Wing skins cores parts pack cut wing leading edge LE end 1/2 in front wing trailing edge TE Use two 1 x 4-ft sheets /64 plywood make wing skins Cut bottom skins separate sheets align core leading edge extend core root Precisely mark tip contour inside evenly feather last 4 trailing edge down bottom lamination Trim contour core tip base top skin leaving about /2 balsa edging tip perim eter Attach bottom skins epoxy Precisely made heavy-duty matching bellcranks provided parts pack essential Open A-in hole No 23 bit Gently tap 3R-in length A-in-ID brass tube bearing prevent wobble bellcrank wire Prepare tube goes across fuse lage protrude A2 either side Similarly size A-in pivot wire Mount items Prepare A-in-sq 1 A-in-long spruce blocks center-drilled hole jig hold blocks vertically drill press can made pieces Y4 -in lumber piece notched / x Clamp blocks drill holes Wing alignment 0-0 respect fuselage under fin Place straight edge under fin extending mark 0o line wing area will bit off airfoil chord line Mount wings checking bottom wing skins par allel fuselage sides /32 clearance rotation Cut 4/2-in-long piece A-in wire Run through bellcrank slots add drilled blocks clothespins clamp bellcranks upright neutral posi tion Block up wing panels underside Make another block 34 thick place under long wire long wire pushed block squares holes drive pin blocks main rod Shim Y4-in block necessary panels 0-0 setting long wire hence drive pins centers ver tically arcs Extend arcs neces sary Rotate panel leading trailing edges skin parallel 0-0 line Fit facings between layer foam block wire pushed down tack drive pin block using CyA quick-set epoxy Allow about tween outboard end block end foam slot wire still down align panels other eye tack other drive pin block place Remove wings wire Secure blocks Size drive pins collars other end will protrude /16 cut beyond blocks After mounting everything place push bellORDERS SHIPPED DAY RECEIVED WARBIRD VIDEOS VHS OR BETA OUR 23RD YEAR ANY TWO VIDEOS ONLY $7595 ANY 3 VIDEOS ONLY $10795 SPECIAL IWIR@DU6IORY OFFER AILS VIDEOS ONLY $19995 WARBIRD CHECKOUT VOL 1 Flying P-40 Warhawk Corsair Hellcat SB2-A Buccanneer Avenger NF 1325 Programs2 Hr Only $3995 WARBIRD CHECKOUT VOL II Flying P-38 Mitchell Bomber P-61 Black Widow Invader NF 1454 Programsi 00 Mm Only $3995 WARBIRD CHECKOUT VOL 111 Flying P-51 Mustang Bomber P-39 Introduction P-39 Advanced NF 1514 Programslb Mm Only $3995 November 1989 33 CALL TOLL FREE IT CARDS Li Mon Drder Check Credit Card F add plete aeluxe kit features exact scale outlines balsa plywood construction light epoxy cowl wheel pants selected wood complete hardware flying wires full cockpit details 3views ohotos decals extensive instruction manual pan u euu sq area /2-1u/2 IDa 90-120 cu engine light epoxy glass fuselage cowl wheel pants complete hardware selected wood decals 3-views apan 00 iu sq ares -o IDa ou-1 cu engine epoxy glass fuselage cowl wheel pants light foam wing cores con test wood complete hardware decals Order direct Add $1500 shipping Use VISA MC check money order COD GOLDW AGE MODELS IO Iox 807 Ienn VaIIeq CA 95946 916 432-2928 S Fiberglass Cowls BAlSA USA Citabria Aerobatic Pro 2100 EAABPIane1050 1-3 Cub /4 scale wfengine BUD MAUIA A IUIHBSIRIES Aeronca Champion 40 1300 Citabria 40 size 13 00 Aeronca Champ /4 scale . 2100 Citabria 1/4 scale 2100 Mr Mulligan w/blisters 3100 CARL SOIDEE KITS Super Chipmunk 2100 Electric Glider 550 J-3 Cub 1200 DRY RIME MUELS J3/J4 15 scale 12 00 J3/J4 15 scale 17 00 GREAT PLANES CAP 21 40 size 1300 CAP 21 60 size 1000 Electric Cab 750 Super Aeromaster 1500 LANCE BAR AiRCRAFT UFS F4U open flaps 2100 P-Si 23 00 RV3 20 00 MUEI AIRPLANE NEWS Aero Faa 11 00 Super Hots 1100 Big Hots 1700 Knight Twister 3100 Liberty Sport B 2600 FREE CATALOG Best 40 Ever 4 Channel nch Span Semi-Symmetrical Wing 25 - 40 Engine 3 3-1/2 lbs Superior Performance Available Favorite Hobby Shop Guaranteed Satisfaction PICA Aeronca Sedan 1/ scale .. 1600 Cesana 1B2 I/ scale 2100 Jungmeister w/blisters 1000 T28Is scale2500 Waco 1/ w/blisters 2200 SI J-3 Cub w/engine 2100 Cub Special PA 11 2100 KadetSr 1100 Koagar 850 Skybelt 1300 SCALE PLANS MID MAulS Gloster Gladiator 1/4 scale .. 2600 PT1O e 2100 Super Marine S6B /4 scale 2500 Floats 70 long pair12600 Waco YMF-5 1/4 scale2700 WE TECHNICAL SERVICES PLANS Buster Wittmao Racer 2000 Cessna AW 1700 Curtiss Falcon 31 00 Spud XIII Cl 2600 WOULD ENGINE CAP 21 40 aize 14 00 Dragon Lady 1900 Robin Hood 99 2100 OTHER KITS ASTRO FLIGH1Perterfield 000 DAVE PLAflJungmeiater 2100 MIDWESTSuper Hots 1150 RC KITS Star Duster 2100 FIBERGLASS Dept MA Rt 1 Box 530 Goodview VA 24095 IFUMAflE WilMin thu smut us add StE ship plq cbinp Va us add 4%% sales tax U wuisms vISA MasteeCaid COU also aCcepted aid 52U shlpplq cbup Autslie cent US Wilts sblpplq darpa bets sdmrlq tsie siu us ubsi psiqe sad handllq puin ouins & lIWUhWiAflhU 703-890-6017 9am 9 pm EDT Send Si 00 8-page brochure featuring hundreds cowls wheelpants radial cowls BroChere free order eivaLeL B A3925-C SE 45th Court IDkIhh IJlJfufIunDIhIIb fillOcals FL 32671 S I9II 1444J Fill 4 904 694-3531 WARNING Dont fooled Johnny Come Latelys Soft Mounting good airplane effective soft mount used ones use accelerometers ensure LOWEST transmitted vibration backed years proven contest performance UNIVERSAL 2-yd engines 20 TO 61 TO USE. EVERYTHING INCLUDED FOR MOUNTING Available better Hobby Dealers order direct add $175 shipping MADE H USA manufacturer DISC-LOCK & HUSH FOAM doaler distribstorships invited PERFORMANCE PRODUCTS UNL 7093 E Dodge Rd Mt Morris Ml 48458 e Orders 3131 631 4wtue / accep crank against slab side push collar against belicrank minimal clearance Push tube panel against tube fuselage check %2 clear ance skins define lateral location drive pin make cut drive pin end epoxy scrap spruce butts against end Remove panels Rough up pin attach epoxy making sure notch faces up Zap pivot wire main tube place Add epoxy putty around inside tube Cut top wing skin extreme lead ing edge extending root match bottom skin about nd latter trailing edge tip Edge bottom skin balsa beveling top skin will form fine edge Shape foam inward rounded base top skin tip area Join top skins cores far 32-in mark cured invert panel Progres sively wick-glue skins together CyA along trailing edge 32-in point pressing straight stick last 1A bottom skin Wing tips Experiment pressing lift ing tip skins together various spots find optimal attach point before gluing Aim nice line around edge bit washout raked tip Wick join tips CyA trim excess top skin Remove 34 panels lead ing edge add shape LE Fill roots scrap wood ep oxy putty etc Make sure blocks pins buried epoxy Fibergiassing wing Prepare panels glassing fine sanding wipe clean Cut light glass cloth cover panel piece wrapped around leading edge Position piece top ex cess extending forward Using wide brush quick application smear resin everywhere except area around leading edge Work cen ter outward pull cloth both ends smooth out puckers Brush front back well making sure entire area thoroughly wetted Slit cloth tip curves Use roll toilet tissue sop up excess eliminating wet look Clean brush acetone Allow resin cure point panel can handled invert follow same procedure other side Pull cloth rearward smooth around leading edge wrap LE separately panel can handled its edge Sand recoat prepare painting same way fuselage Painting Finish sand dust off tack surfaces Choose clean environment spray painting drying own spray equip ment probably already have favorite paint Durable epoxies such made K&B adhere well properly prepared 34 Model Aviation VIBRA-DAMP BEAMS 21 50 ALUM TABS surfaces base white yields finelooking finish trim colors added Among inexpensive discount store brands Dutch Boy fast-drying spray en amel called Fresh Look delivers soft fine fan-shaped spray does especially nice job Keep moving spray overlap evenly possible Apply eight 10 light coats few minutes apart good coverage Dutch Boy white enamel No 3725 black No 3726 Wait five days instructed manufacturer mask add trim color paint youve used doesnt prohibit well-cured surfaces can worked deep sheen using polishing compound waxed Simonize step mini mizes skin friction can done both K&B Dutch Boy enamels Use servos 50-in/oz torque bet ter mount firmly Size adjust connecting links wing panels 0-0 alignment trim tabs set neutral Initial flight testing first thing check out right wing moves up left moves down left turn both wings move up front up elevator isnt case correct problem switching servo plugs Check model balances wardmost point indicated plan wing appears 0-0 alignment Make sure bellcrank ball links approximately vertical straight up position similar motion way dual-rate transmitter works best should have good throw trim tabs have dual rate set transmitter low rate adjust wing motion about 3R both upward downward elevator response trailing edge should have approximately % move ment high setting Similarly adjust aileron movement 3A up down stick response trailing edge low rate 1 high dont have dual rate adjust wing ai leron response per suggested low rate figures Find long stretch lawn grass prefer ably rise knoll first objec tive trim level flight worry ing about turn Due long stabilizer moment arm pitch action rather soft though allows brief moment get stick However its essential jack model up quickly flying speed youll have 20-ft one-second flight ending hard thunk no time ti midity Heave straight out bit nose up. hard Adjust trim tab necessary level flight mark fuselage meets wing trailing edge Center trim tab adjust linkage marked spot goal have wing near 0-0 neutral setting possi ble maximum penetration necessary put shim under stab front rear Continued page 148 Just bee ON PAIR OF 25 INCH sizes 15 6 WHEELS WEIGH JuST 3/4 OUNCE PRODUCTS 4560 Layhgh Rd. Hamilton Ohio 45013 Vcice 513 738-l576Fax 513 738-01521 R$kr4ft FOR THEDISCRIMINATING MODELER MUSEUM SCALE 1/5th Size Absolute Scale Plan sets show model type structure show iginal structure full scale ship Build exact replica fake whatever degree wish choice yours finest information available expert modeler Drawn authoratative sources sheets 30 X 77 Rhipped rolled HANRIOT HD1 3 sheets $3500 ROLAND DVIa & b 5 sheets $3900 1400 Gomes Rd Fremont CA 94538 November 1989 35 eFULL LINE QEQUADRA ENGINES PARTS ACCESSORIES UPERTANKS& SUPERMUFFLERS oFULLLINEOFZINGER WOOD PROPS SGIANT SCALE R/C PLANS SEND $1%FOR COMPLETE CATALOG TO DEALERALLEN SCOTT INQUIRIESQUADRA INVITIED RT 1 NEODESHA KS 66757316325-2821 SOPWITH PLJF 5 SHEETS $3900 $300 POSTAGE US $1000 POSTAGE OVERSEAS Service Ace Cirrus EK Futaba Heathkit Hobbyshack JR KGL K-Line KG Propo Kraft KSE Logitrol Novak Royal Tower Hobbies World Engines Ill Fly What Fix ** ** * * * **** ** * * *** ** *** *** * * * WANDIT * *Dealers Invited * * year Warranty * *CORD * torDry * Stick Abrasives *_ *A Keen Machine gives exceptional *sandingcontrol excellent finish * * 9995Basic xci 1 flat Wand *of 6 grits *10995Builder Special mcI 2 flat huff *round wand 5 6 grits *129-95Deluxe includes 3 ftat 2 half *rxund wands 2 buff wands *10 6 grits * *Additional Wands Abrasives available* *See local hobby shop *WANDflWG.21440S-BIBO P09se515183Odu1X75251-5183 $599 O op Nut use Electric Starters Made trom 6061 Aluminum strong enough allow over tightening weighs under 1 oz 1 diameter 1114 long 1/4 radius nose minimum AMA requirement 5/32 Torq Hole 314 thread depth can use thinnest props 11 thread sizes tit engines market Send us order & well mail out fast MADE IN THE USA B C PRODUCTS 111 N Starkweather Pampa Texas 79065 806 665-6361 D103210/32 EJ05805-8mm D123212/32 E206106-1mm EJ07107-1mm 11108108-1mm 111181258-125mm E101210-125mm E114281/4-28 111151625/1624 E 3824 3/8-24 VISA MASTERCARD MONEY ORDERS ACCEPTED DEALER INQUIRES WELCOME ENYA15 5-8mm 5S20 SS45 1/4-28 19 80 7-1mm 1208-1mm FOX 19 45 1/4-28 60 1205/16-24 HB ALL SIZES 1/4-28 HP 406-1mm 1205/16-24 others 1/4-28 IRVING ALL -28 K&B 19 61 1/4-28 05 105-8mm 15 12/32 206-1mm 21 50 1/4-28 6Oto 1205/16-24 108 3/8-24 ROSSI ALL 8-125mm SUP ERTIG ER 11 to 15 5-8mm 19 to 60 1/4-28 61 to 90 5/16-24 2000 6000 10-125mm SAllO 30 60 6-1mm 65 to90 7-1mm 120to2708-125mm WEBRA 28 61 1/4-28 80 908-125mm MALONEY 100 3/8-24 Orca/Michaelis Continued page 35 turns seem excellent differential Check out roll rate us ing small inputs first amount panel rotation present should make smooth steady turns Excess rotation causes rocking action typical overcon trol overcorrection slope launch Orca aggressively winds 15 mph higher Things really start get interesting turbulence reaches 25 mphand gusts 35 mph better full attention business required After hour airtime should fairly confident flying model up good ways Keep plane up high far out high airspeedsand hide women children hotdogging Experiment center-of-gravity farther aft quicker response pitch put will also flatten out ballooning tendency heavier winds experiment ballast Soaring high aloft resplendent its black-and-white killer whale markings Orca does its builder/flier proud parts pack includes precision-cut blue foam cores special bellcranks 1-ftlong 5/-in stainless steel rod Order VS Sailplanes 2317 N 63rd Seattle WA 98103 Price including shipping $2495 airfoil coordinates send pread dressed stamped envelope Harley Mi chaelis 26 5 Roosevelt Walla Walla WA 99362 enclose loose unglued 25 stamp cover photocopying costs Nats RC Aerobat/Verger Continued page 46 rockets llistics Now have West Coast Nats higher ever entry level FAI What turnaround pardon pun Wednesday morning beginning Ex pert Masters FAI competition Unlike Sportsman Advanced fliers classes fly qualifying rounds finats No weather problems artlingly clear skies what could want After Site 2 com pleted its first round learned flying stopped Site because intermittent ra dio interferenceaffecting FAI line new term sprang use lockout Ive heard glitch hold ckout Flying de layed investigate after several hours flying called off until next morn ing After much checking investigating specu lating decision made RC category direc tor Betty Stream continue Several frequencies changed radios swapped result few minor isolated problems re mained Virtually everyone felt correct deci sion made Lets just call oo interference Expert Master able finish qualify ing Thursday however FAI still round fly Friday morning before finals could flown 148 Model Aviation Special Fast Turnaround Now Available CALL Frequency Conversion $3500 Includes Crystals Certification Spectrum Analyzers Calibrated Test Instruments Large Inventory RIC Parts Crystals UPS US Mail Federal Express Used Mastercard Visa Accepted Send Large Self Addressed Envelope Brochures Duracraft Inc 1007 Orchard Grove Dnve V Royal Oak MI 48067 DuraPlane IlThe trainer rugged enough teach entire club fly Tell hobby shop owner want see toughest model aiplane money can buy
