Electrostreak

NO OCR TEXT NO OCR TEXT NO OCR TEXT 1116 X WING FILLET CUT FROM FL WIT 3116 MEDIUM BALSA BUILT-UP FIN & RUDDER UDDER PULL-PULL K CABLE SYSTEM N 3/32 STRINGER 1/16 BOTTOM SHEETING CRO / II r hand launchso shoulder-wing layout chosen Additionally wanted avoid un sightly cooling holes bottom fu selage common Electric designs Thus devised flow-through sys tem air forced just below spinner travel completely through fu selage exit under elevator semisymmetrical airfoil desired Jim Denaro Taper Ace employed draw ing rib tapered wing planform Construction goes very quickly less model compared glow-engine powered no major reinforcement needed no landing gear mounts build Electro streak built entirely mediumviscosity Super Jet cyanoacrylate CyA ad hesive naturally no fuel-proofing necessary An important first step prior beginning construction trip local hobby shop postal scale hand piece balsa select should light pos sible exceptions being / Y16 sheets used respectively wing spars stabilizer parts 1/16 balsa very light four- six-pound contest grade can obtained Sig Mfg Co Lone Star Models Begin wing construction cutting out /16 wing ribs plans show holes use A-Justo-Jig works well model Some type jig must ensure true unwarped wing use A-Justo-Jig align rib add top spars leading edges attach trailing edges sand conform taper ribs Add top lead ing trailing edge sheeting cen ter sheeting cap strips Remove wing jig install bottom spars Attach shear webs being sure securely glued both spars fil leted ribs either side Notice webs front spars ex tend R-4 rear ones extend R-6 Also note grain front webs runs parallel spars grain rear webs perpendicular spars satisfied shear webs securely fastened add re mainder sheeting cap strips bottom wing Attach A6 wing tips end wing Finish carefully shaping sanding wing leading edge Cut out /16 wing center section trial-fit /16 wing hold-down dowel Re move dowel attach center sec tion wing half very carefisily glue other wing half center sec tion being sure both sides lined up per fectly no dihedral use Super Jet entire joining process far havent problem its strength may prefer use 5-mm epoxy give time make adjustments before hardens Attach 1 /2-in nylon fiber28 Model Aviation wing initially framed up AJusto-Jig assure correct alignment After top sheeting glued place wing must removed jig add bottom sheeting completed wing halves wing center section just prior joining Notice shear webs see text additionai details vital strength wing tail section easily built up 3/ medium balsa resulting strong light structure Its aiways important build lightness model aerobatic Electric must Add balsa doubler fuselage sides strengthen fuseiage protect against repeated hand launchings Note direction grain doubler its shown COPIEAL WING SECTION - rn I/4Sl AILERON STOCK I-BZ4CS SHOWN FOR GRIlL HOLE FOR 6-32 OLRBFO L2A CONTROL BOLT AFTER WING IS JO/AET & CLOTH ___ - IS AT TACBE B 3/160/4TRAILING IIEDGE SANG TO CON IIFORM TO TAPER GF RIB 8 VERTICAL GRAINII HORIZONTAL GRAINII I S/A HAROWOOG WING HOLO-GOWN GONCL INSTALL AFTER WING IS JOINEG ANG REINFORCING CLOTH IS ATTACHEG JIG HOLES FOR AJUSTO-JIGS SHOWN 1/16 WING RIBS 2 EACH ALL FUSELAGE FORMERS Fl -F4 ARE I/GE AIRERAYT PLO FIWING HOLD GOWN MOOR 60W NGPLATE AREA HOfS AR__ N AXE_________ I/A ROSE BLOCKA-AB-BC-CD-DE-EF-F INNER HOLE IN F2 IS FOR ASTRO COBALT US & OUTER HOLE IS FOR LEISURE US 3/32 TOP SHEETING 2 RIGHT THRUST 6____ TO ALIGN Fl INSTALL F2-F4 & N I-IC FUOCLAGE SITES TI-/EN INSER MOTOR THR/G/GI-I F2 ATTACK FT Fl TO MOTOR WITH MOUNTING 2 SCREWS P/AL FRONT OP FUOCLAGE TO GETI-IER & GLEE l REST REMOVE MOTOR GANG FRONT FLUSH & AGO NOSC BLOCK FUSELAGE TOP VIEW 0/52 TOP SHEETING II IIII WING BOLT MOUNTING PLATE1W PLY 0-32BLINO NUTI UGHTEMNG HOLES RECOMMENCDCCEJTROL THROWS AILERONS5/32 EACH WAY ELEVATORS/B OP & I/U GOWN RUDDERI I/H EACH WAY I/IA LEASING EGGE SHEETING Top B BOTTOM TYPICAL HINGE LOCATIONS 7K I/GEDIHEIAL DETAIL 0 AT CENTERLINE OR LW UNDER EACH TIP II II-1/10 WING TIP SCRAP RALSAI 1/4 0 S/16LCAO FL/GEL/CC H-1ALONIENT ILEES 01~ STABILIZERhi 111DGBRG I/GA 3/lAOS/B I JIII I LONTROLI G-G OLORO I/GA CONTROL I-OR-I -HELEVATOR ALL STAB ELEVATOR PARTS CUT FROM 3/IA MEDIUM SHEET 1/2 CR1 STOCK 0//ES /G16 SLOT FOR FIN ATTACH TOP SHEETING --I R5 CHBLE HOLE ROTH SIOES II I I 4 0/32 GIRl/AS/H SPECIFICATIONS WING SPAN44 INS LENGTH095 INS WING AREA340 SD INS WEIGHT02- OH GUS CONTROL PU/CT/TNT AlL OLE ROD MOTOR Ct//GE F dIE SHEETING CHOSSURAIN /12 CR1 STOLEFUSELAGE BOTTOM VIEW____________RECOMMENDED POWER PACKAGES MOTORBATTERYPROPII _______ LEISURE LT-NT6-CELL 000 MA/Icoo ,,/I 604'__ BUILO & S/ZAGA 0FINRUDDER 3/32 SI-fETINGWING FILLET AS PART OFNOTE ALL MOTORS ARE ORE ORI y IFUSELAGE -THEN REMOVE6-32 ENGINE MOUNTING BOLT WOHI ROTUSTRO COBALT OS 7-CE 200 MAH RE OR706 C1ATTACH TO WINGRLEISER CHBLE B1 TRIANGLE STOCKCOOVERSIZED WASBER 0 5CR/P BALSALINKAGE HOLE RELIEF11/D-0/60/A I1/2 TRIANGLE 000CRFMD BALSA A-1— -ISHOWN GEPAWATED GOLOBERO VA SPIBR-ER-OR SWITCH AAILERON PUSHNOG EXiTF/I3/02 TOP SHEETINGRE/ACRES FljMOT( FILLET BOTH SIDES_GEAR LOCATORPGLRITL6 3 GOWN THROSTBA BATTERY AREA - - 44 WTTH CYA/A/CRTLAE II}MOTORBATTRY ARkAIT ELE 3/32 BALSA EL/GE SIDE OUTLINE RER EARLE 1-00 -SERROGRECIEVEW /4 ROSE BLOCK-- -I4 / L8I N-I K 0100EXCESS 1/2 TRL SYCCE CAL FLUSH WCI RYTTYM OF FUSE UTTi I/SI-I LUF 00 HI FR C2T1 SF FUSELAGE SIDE VIEW I/IA BOTTOM SAEETING CHOSSORAIN T2 YT/TRAIYAYYHOCIRLE IMPORTANT NOTE BALSA SELECTION ALL BALSA SHOULD BE HAZ4-PCRED VERY LIGHT I/IA BALSA IS 4-A LB CONTEST OCADE ONLY ESGET/GONG 0/IA OWL ASSEMBLY I/B WING SPARS WHICH ARE MEEBLRA BALSA [F MODEL AVIATION Ekctro0treak ELECTRIC POWERED AEROBATIC AIRCRAFT DESIGNEE A/GE DRAWN BY TOM STRYKER REAR VIEW AIR CUlT z 0 CD CD -I CO 0 Ca UI25450 1IIIIII glass reinforcing tape Super Jet epoxy insert wing hold-down dowel Finally trial-fit 14 x 1-in aile ron stock rear wing cut out hinge slots tail surfaces built 3A6 med ium balsa Assemble parts over plans being sure good fit corners Taper rear rudder el evator cut lightening holes eleva tor Dremel sanding drum similar Sand V-shape front rudder elevator slot hinges fuselage simple box structure little carving sanding can transform sleek rounded shape Cut out fuselage sides add bot tom stringers triangle stock Cut few relief slots partially through front/top triangle places help bend out line fuselage Attach 6 crossgrain doubler radio compartment area block backing sand inside rear triangle stock pieces will fit flush together fuselage sides joined Using fuselage top/bottom view plans cut out /32 top sheeting Butt enough pieces A6 balsa together crossgrain cut out entire bottom sheet piece should alleviate need fuselage jig although certainly wouldnt hurt use anyway Cut formers Fl F4 out %-in air craft ply Trial-fit motor through F2 sand F2 provide snug fit Attach formers F2 F3 F4 fuselage side carefully add other side Slide motor through F2 rear mount Fl motor two mount ing screws Adjust Fl its correct loca tion pull fuselage front together securely glue Fl position will assure good fit proper downthrust right thrust reinstall motor later Remove motor add nose block top/front sheeting align join rear fuselage sides add re mainder top bottom sheeting stall wing-bolt mounting plate generously fillet around Super Jet accelerator Now fun part X-Acto knife strip 150-grit sandpaper carve shape top front fuselage referring cross sections plans youre satisfied finish sanding fuselage 400-grit sandpaper Re move wing fillet fuselage cutting immediately behind F3 Trial-fit wing fuselage se cure wing fillet place front wing Tack-glue stabilizer posi tion sure closely aligned wing entire plane framed up assembled weight point should between six eight ounces What say six eight ounces Dont worry Its easier think keep weight took time hobby shop pick out lightest balsa yours little overweight go over entire aircraft time two sandpaper especially rounded areas top front fuselage 30 Model Aviation fuselage parts cut out form kit point assembly quick easy using medium-viscosity cyanoacrylate CyA Remember cut F2 match motor Insert motor Fl glue sides gether allow time dry Remove motor rear sand front flush Fl glue nose block place fuselage sides partially assembled just prior joining two sides motor fastened Fl before Fl glued fuselage sides assure motor will fit properly care must taken position Fl correct amounts down right thrust Atter sanding complete wing fillet shown Itself cut away fuse lage attached front wing Fuselage notches aileron pushrods Cover entire aircraft MonoKote some other lightweight iron-on material Keep color scheme simple avoid un necessary weight fraction ounce can save important No fuelproofing required entire covering process quick easy Motor/radio installation Because small size Electrostreak careful plan ning essential motor battery will take up radio compartment smallest possible radio components should used prototype Electro streak uses Futaba FP-R4H micro re ceiver four S-33 micro servos 250 mAh battery pack mini switch harness Most components can mounted using either double-sided sticky tape Velcro adhesive backing either case spread thin coat epoxy balsa surface contacted theyve dried clean thoroughly alcohol assures good surface adhesive tape Velcro adherence Foam packing neither necessary nor desired Vibration factor essential save space Also flow air through fuselage must blocked Install motor through radio com partment Next mount receiver immed iately behind F4 Install elevator rudder servos just ahead F4 using %-in plywood mounts prototype Electro streak two servos mounted sidewayswith forward rudder servo After some carving X-Acto knife rough sanding fairly coarse sandpaper author buffs top fuselage 400-grit paper achieve smooth rounded appearance Youll surprised onlookers will ask its fiberglass fuselage entire aircraft framed up ready cover point model should weigh 6 02 Covering will add another 1 1 oz Ready-to-fly weight should come out somewhere tween 32 34 oz vast majority being made up motor batteries fuselage rather boxy looking before carving shaping begins Centerlines drawn piece help assure proper alignment fit Sturdiness lightness paramount November 1987 31 control surfaces nungea ana trialfitted point Theyre permanently installed until model has covered wing trial-fitted aligned secured fuselage simple 6-32 engine mount ing bolt blind nut dowel wing center section holds leading edge wing place good-size washer placed under head bolt protect wings surface 4m going flying words conjure up images battles balky engines instead carefree days field youre using McDaniel R/C NiStarterTM light plug Ni-StartersTM heavy-duty nicad power will provide up 50 reliable quick starts charge features famous Head LockTM adapter brass reinforcing ring around crimped end really extends its life works sideways inverted information well NiStarter works just go local flying field may have wait NiStartersTM always flying rIncorPoratedj 12206 Guinevere Road Glenn Dale MD 20769 01/464-2260 Telex 287901 McD-UR take hassle out hobby 1988 Wings War Nose-Art Calendar LUCKY LADIES THE GALS WHO BROUGHT US HOME Capture spirit aviators magnificent machines & Lucky Ladies brought safely home premiere commemorative wall calendar 12x18 featuring official US Army Air Force archival photographs mere pinups tradition nautical figureheads mascots new age aerial combat first series issued through 1995 Available @ $995 postpaid PA res add 6% tax ALKMAAR ASSOCIATES 503 Todd WayF West Chester PA 19380 raised higher rear elevator servo allow clearance pull-pull ca bles cables work very well rudder add practically no weight elevator connected conventional balsa pushrod motor switch attached directly side throttle servo both mounted side fuselage just rear F3 battery mounted across little forward throttle servo battery will actually straddle side post F3 will present no problem put strip Velcro sticky-tape ahead F3 strip behind F3 motor battery mounted floor fuselage either Velcro stickytape center radio compartment six-cell 1200 mAb pack will present no problembut use seven cells sev enth cell will have go toward rear fuselage may have turned 90 0d clear aileron pushrods aileron servo mounted A-in ply mounts situated deep wing possible Notice two bends aileron pushrod shown plans bends allow pushrods exit fu selage provide direct hookup aileron slots fuselage sides pushrods exit also provide extra exits cooling air Charging Refer instructions particular battery/charger combination have Hobby shops can very helpful because recent interest Elec trics brought popularity RC cars Most chargers designed fully charge battery 15 minutes although have found take like 20 minutes As rule batteries begin feel warm touch fully charged again refer instructions battery/system charger has AC cap ability may want put first charge home youll ready arrive flying field 1200 mAli cells seem work best purposes put out constant amount power until exhausted time drop off almost once Some smaller cells 800 mAh etc provide good power beginning flight gradually taper off can quite annoying flying aerobatic sequence Flying Choose prop using recommen dations plans motor manu facturers instruction balance prop carefully use wooden prop take couple extras field gear-less landings will occasionally cost Recheck models balance both front-to-rear side-to-side Hand-launching Electrostreak eas ily accomplished holding centerof-gravity CG hand dont forget transmitter other trotting few Continued page 83 32 Model Aviation K easy transition flat sheet nice looking curved surface worry Trim rib ends sand entire assem bly smooth round edges particu larly leading edge Add triangular pieces side center ribs Care fully mark square-cut wing three polyhedral joints flexible straight edge great help Again work slowly force things Several light cuts work better ripping cruncher install proper polyhedral first block-sand joint end straight true positioning over workbench edge off end glass sanding surface such do-it-yourself shelf units paint stores have sale Test-fit joints re-sand necessary satisfied work pin down main panels leading edge leading edge add tips proper alignment propped up 2 above board Check measurements spotglue tips main panels Set thick CyA reglue top bottom Re peat center joint blocking side up hunk standard 1 x 2-in lumber correct angles finish off new wing dress down rib bottoms sanding block 320 paper eliminate fuss Preassemble model make sure everything looks right correct misalignments Drill hog-out holes DT hardware hold-down hooks fuel tank etc Test-fit engine four #2 wood screws Once properly fit remove engine set aside Finishing remains painting trimming fuel-proofing new model quickest easiest way Sig Spray clear butyrate color important Pactra Aero Gloss spray butyrate dope Alternatives tissue color trim K&B Superpoxy Hobby Poxy Black Baron Spray Epoxy etc Whichever choose dont overdo Keeping weight down important finishing adds weight hurry Also best paint outside decent dry day materials quite toxic despite what labels might say complete assembly remount en gine CyA fuel reservoir/tank eye dropper large glue tip place add remaining hardware including DT line shown plans Install wheels axles use Perfect 1AA re tainers hold place Finally strap together rubberbands Pee Wee-30 model complete Flight trininiing begins good hangar inspection Check balance point CG rearward point indicated plans add clay lead nose area con versely balances forward point plans add weight tall area bad warps steam out Make sure DT works installing piece test fuse letting burn through ascertain stab pops up anything else looks weird correct now before hit turf first-flight nerves ablaze Pick sunny calm day maiden flight preferably early morning field covered tall grass would bestif can found few handlaunched test glides shoulder height good idea before turn power no bad dorks occur move running couple tanks fuel through system near-peak rpm Tweak trailing edge third rib bay right main wing panel down about 6 washin adding teeny bit rudder Test glide once Rerun engine watch fuel level until find point runs out about four five seconds remember mark Restart engine wait fuel drop mark launch level smooth model should make smooth power climb right make very slight dip cutoff transition smooth descent wide left glide things didnt proceed exactly planned trim out time model made slight loop can cured adding downthrusta washer two under two top engine-mounting screws Severe looping may require shim under trailing edge wing hard right turn under power can corrected add ing left thrust engine using two washers turn missing glide shim up stabilizer left side model stalls end power climb first recheck balance point try adding little nose weight until con dition disappears model spirals dur ing glide check balance point incidence angles increase incidence raise front wing back stab needed beautiful aspects allsheet Pee Wee-30 models adjust ments can bent cut Repairs quite easy dab CyA damage event crash usually pretty minor Newcomers well-advised take friend along first episodes should also observe safety practices start Stay awaywell awayfrom cars times keep eye specta tors dont stupid things jest otherwise Busy Bee performing satisfaction try couple rise-offground flights pointed dead-straight ever slightly left prevailing breeze point fun quotient somewhere above horizon Have fun cheers John Oldenkamp 3331 Adams Ave San Diego CA 92116 Condensed Orbiteers Pee Wee-30 Rules Power Cox Pee Wee 20 reed valve engine 30-in maximum airframe dimensions length wingspan Minimum weight 100 grams 252 oz No gadgets allowed Two-wheel main gear 1-in minimum di ameter Engine run controlled metered device eyedropper etc No mechanical timers engine run DT timers OK Any type construction Official flights 40 sec miaimum Six tempts make three official flights must ROG Engine run 0-15 sec ec Over 15 sec counted next highest whole second Flight time fractions rounded previous whole second Scoring Flight time 120 sec max divided engine run 15 sec mm times 100 equals flight score Flyoff flights Max increased 30 sec per flight necessary flyoffs must ROG Safety/Preston Continued page 22 wind have wind pressure tail help ing swing plane over Some may questioning Im men tioning effect wind performance aerobatics Well believe lack under standing what wind will will model has direct bearing ability fly safe manner agree above statement concern ing Stall Turn crosswind get re sponses Ill discuss future column Meanwhile fly safely watch out other guy John Preston 2812 Northampton St N W Washington DC 20015 Electrostreak/Stryker Continued page 32 steps forward tossing forward level attitude first test flight try few clicks up-elevator trim ensure will dive immediately after launch Allow few seconds level flight build up speed before beginning climb Electrostreak first flown Leisure 05 competition-wind motor Cox gray 6-4 prop GE six-cell 1200 mAb battery Straight-and-level flight quite fast least appeared way its sleek lines Rate climb however little low basic maneuvers such rolls inside outside loops hammer head turns snap rolls spins could performed simply needed few seconds straight-and-level flight between maneuver gain speed good com bination budget-minded flier still offers good performance Later Leisure motor removed Astro Cobalt 05 installed its place easily accomplished modification needed being wrap masking tape around rear smaller Astro Cobalts case would fit snugly through hole F2 two mounting holes Fl aligned perfectly six-cell battery replaced seven-cell Sanyo 1200 mAh pack Performance with the Astro Cobalt noContinued page 139 November 1987 83 U BYRON ORIGINALSINc Finally. Practical Twin Ducted Fan Project Thousands satisfied modelers currently flying Byron Originals jets serve proof release kit can sure project can confidently build fly st dream designed built flown its designer few others new F- 15 Eagle no exception F-iS designed around proven Byro-Jet Propulsion System its twin Byro-Jet Fans turning nearly 20000 rpm producing 24 2414 total pounds thrust Eagle delivers speed rate climb maneuver ability expect Byron Originals jet Unique Exclusive Components new F-i 5 far too numerous attempt describe magazine ad Detailed Info Pack includes brochure owners manual set reduced construction drawings kit pricing send $200 Get full story F-i 5 its long list exclusive features Take-off distance paved runway less 250 feet little practice nose high landings predictable F-iS climbs authority good steady rate has solid positive groovy responsive feel Engine Out performance outstanding ight trim changes enable hands-off straight level flight no need land until youre ready Plus Byron F-iS offers unlimited scale possibilities its priced com petitively other twin engine jets comparable size Custom Retractable Main Gear lutionary New Nose Gear Design matic Landing Gear Brake System Functional Pneumatic Speed Brake iled Fiberglass Fuselage Factory Installed Formers -in Wings Stabs Fins Precise Construction Methods Specifications wing Span 70Channels 5 w/retracts Length 89 7 w/spead brake Ready-to-fly weight 28 lbs landing gear brakes Power - Twin Byro-Jat Performance Systems wIOS 77 equiv j Byron Originals lnc Box 2790 Ida Grove IA 51445 Ph 712-364-3165 Electrostreak/Stryker Continued page 83 ticeably better model climbs briskly immediately after launch up per forming altitude almost before know Level speed increased bit over what several maneuvers can added routine Figures such ioops snap roll top four- eight-point rolls square loops succes sive rolls end field other now quite possible Although Ive yet time flight Im al ways having too much fun airborne time seems seven- nine-minute range Its certainly enough time exhaust aerobatic maneuvers reper toire repeating few Flight times can increased considerably climbing turning off motor setting up leisurely glide turn motor climb back up near earth may catch thermal battery begins give out start setting up landing pattern no big rush battery will slowly drop off over period minute will give time make back runway have strayed off itor just need stretch out glide slightly land feet Youll surprised fast flat glides give plenty room final approach sure motor off prior touching down Leisure motor will usually windmill way down prop will flatten out difficulty touches grass Astro Cobalt has bit compression prop will usually stop plane slows just prior landing prop stops vertical posi tion simply bump throttle hopefully will stop better position next time may occasionally break $150 prop thats about expense 11 incur maintaining Electrostreak design easy build maintain enjoyable fly Both motors have used very good own rights Leisure motor six-cell battery performs nicely relatively inexpen sive Astro Cobalt seven cells ers increased performance pro portionately higher price tag Other motors may also work well although have no ex perience other fliers now definitely take notice little red plane arrives flying field Electrostreak changing peoples minds about capabilities electric-powered flight Im sure will change yours try responding advertisers mention read about Model Aviation Box 1063 Lorain Ohio 44055 Ph 216 282-8354 Piper lab/PEANUT SCALE Piper Vagabond IA Piper Cub Stinson 125 Ouldoer kits each. 3550 Light Indoor kils each. 3655 OUTDOOR PEANUT Super Scale. 3655 SPORT SCALE PC-S Porter Taylor Crall Slinson Voyager Rubber CO2 Power Kits each.3750 SPORT MODELS 30 Embryo Model 18 Span designed win beginners experts 0 HARD-TO-FIND ITEMS Early Bird Tissue Antique Aircraft 3595 True Olde Japanese Tissue 10 3 colors 95 Japanese Tissue 12 6 colors 3305 Microlite Plain3325 Silver3395 Microfilm Glue Solvent Condenser Paper 3 sheets 3375 Plan Service over 17 Scale Sport Scale & Peanut Scale Rubber Strip 020 thru 085each 5175 3132 tftru 5/32each 3195 Winder 61 .. 5395 Mark 1161 195 Complete Line Brown CO2 Motors Balsa Wood Outdoor & Indoor Sheets & Strips Add 10% Postage mum Postage 3150 COMPLETE CATALOG 5150 November 1987 139 F-15E 1/7 Scale Exceptional Performance True Byro-Jet Style.