Zephyr 1100

NO OCR TEXT NO OCR TEXT Spoiler servo area wing lower surface comes view hatch cover removed Space ample servos Futaba S-20 shown Space could adapted easily ballast compartment Tow hook ultimate simplicity made reshaping heavy-duty brass kitchen cup hook per plans soldering base washer threaded shank end Its fine sport flying Wing saddle area shows alternate location elevator servo see text allow adding ballast compartments either side wing mounting bolt Cast lead ballast blocks wrapped masking tape avoid skin contact Caution Molten lead gives off deadly fumes dont know handle dont attempt glossy red fuselage finish reflecting ballast blocks clear Ditzler Acrylic Enamel over red Super Poxy Wing tip partially plugged main wing panel Blade /4-In ply wire pin trailing edge visible spoiler fullydeployed position Formula U paint missile red used touch-up spoiler area Vinyl electrical tape holds tips place Heres radio gear goes Battery neatly tucked first compartment wrapped Ia-in foam rubber Receiver wiring visible second compartment foam padding top ground Rudder servo partially visible just behind receiver tail end quite simple structurally elevator control horn buried inside fuselage rudder horn outside lightweight fiberglass cloth/resin covering strengthens tail skid against possible abuse ground loops several Control Line horns available may require rebending Fully enclosing elevator horn little work neat clean well worth trouble am thinking rudder horn could fully enclosed have yet come up good scheme lf MonoKote hinges per plans used sure leave upper surface hinge line flat other words thickness tapering should done lower surface sweeping tips up nothing special about fin rudder except leave themjoined leading edge until final sanding has completed Position rudder horn inlay plastic screw-plate right side rudder Wings recommend precutting wing parts ribs tips dihedral braces shear webs trailing edges Cut spars other spanwise elements exact length 24 Model Aviation HAIJK YOURBECAUSE ITSISYRS 014 FLOATSSO PUTTALK TO YEAH BUD DAD WAS GUNG-I-IO FORliRES VOP TRACKNOGOT WHKELSJIS ENUFF HEELSJUNIOR WHATS THE P YRS AGO NOW HEALO ISAWFULRLJSTYPILOT5 ANDTARTNTo DROWNONTHECUBDOPE RANGE SPEEDCOMIORTHER3 V4X 1/2 FIN BASE WIly DO YOUMODELER5FROM BOAT WAVESFORGETS-HE FEELS YOU1JG IN1OS1BIs X 3/4 RUDDER TE WANT TO FLYA ARE ATAIRPUR -AND WINTER- ~ ONLY BECAUSEOF THE -7 I5 ANYHOWNOTON LAKES UG7FUN HF HAD ON FLOATS 1/2 r2~ARTlYd JSTAB SPARI/8X 1/47 IISPRUCEI/4X 3/B FIN AND RUDDER SPARSPOSTS AND LE 5/8 HOLES CES NOW d-IELLGETSERIOUSMONOKOTE AND HELL ET5ICK~HINGES GOLDBERG HS WEBS TWO BAYS OY1/4 X 3/4 BASE W 13 1/16 PLY RIB REINF WIRE 1/4 X 3/4 TiP 1/4 BALSA SKIDAND L E l/4TRIANGLE IN I/B AFTFOUR CORNERSI/16BALSA SHEET TEANDLE FLOORI/16xI/4CApS AND TOP- ---F6 GOLDENRODSI 4 OZ GLASS 4-40 INTO T-NUT FOR 5p~51/4 BALSA TiPS 3/B BALSA HATCH 1/16 WEBSI/B SQ L E SPARS HOLLOWED 1/16 X 1/4 CAP STRIPS -I/X I/2BALSA TE TOP/ BOTTOM GOLDEN ROD 1/16 PLY SHEETS BOUND TO SPAR FOR W 12 1sEmHCLLDWED NOSE BLOCKVS I/BBALSA SIDES3/32ALL RIR~1/16 SHEET LETCP AND BOlTOM except top spar caps Extra care precise cutting parts will permit quick assemblyjob minimum gaps structuraljoints Precutting parts excellent way become familiar construction details Outer wing panels Probably already have noticed lots spruce pine required along plenty shear webs Cap-strips necessary ribs because exceptionally thin airfoil section near trailing edge Before pinning trailing edge TE down glue small piece 1/32 sheet about A-in square lower surface forward edge rib location will orient TB airfoil undercamber pinned down likewise lower main spar Thats about special attention must pay building wing undercambered airfoil Pin down TE main spar forward spar directly over plans using Ribs WI W8 precise location Glue WI place using forward spar shear web set dihedral angle Omit Main Spar Blade W12 time Add Rib W3 shear webs between Ribs W3 W4 forward spar main spar TE Keep adding ribs webs web cutting precise enough ribs will align directly over correct spot plans Add W13 plywood partial rib W3 Install -in leading edge [B Taper lower TE shape top ribs glue upper TE tight fit between shear webs both spars vital wing strength Using piece /4—in scrap balsa make sanding tool gluing 120-grit sandpaper edge easily sand edges webs good fit upper spar Install upper spars Fill A-in notch WI forward spar scrap balsa Add triangular stub spars tween WI W13 accommodate W12 dihedral blade will glued after inner main panel completed aligned Glue wing tip place TB flat plans LB TE Add spar extensions tip install WI 2 dihedral blade TB alignment tube sheeting until outer wing has fitted main wing panel After glue has dried remove wing plans Flip plans over trace part outlines build opposite outer panel dry re-apply glue joints Main wing panels assembly built same manner outer panel using / 32-in shims raise up main spar lower TB Install Rib Wl center line using WI gauge set dihedral angle just temporarily glue place Omit shear webs first bay since ply wood dihedral braces will installed later Glue Rib WI second spot add shear webs ribs succession Install three W2 ribs spoiler cutouts ----S----iT------ A I-~xzL4~----E4j ----4Mb -----4----Li21111W IIII 712-41iL-T~~2i5-rI1SHEETINA II -RfI ------- ----- -___ I/B PLUNO WRE SPOILER TORQUEII 16 -N-POD ISERVOOUTER HOUSINGSMALL PAPER CLIPL ILUrCH-FOR SPOILER SPOILER PUSPRODSSPOILERBOTTOMTORQUE ROD WITH 2 BENDS RT SERVO ONLY BJSHINSa REO EACH END BIND &THIS V SOLDER DRILL-BAY LAW1I SERVO WHEEL FOR-~COT POURROD DIR AT A5 TROSI EXISTING POLESP115 SO2 1W1 BERM[WI/ 3/W TRPEGED [END GRAB 1 0 4 -1 1 i/IA SHEET NO TNT RE CENTER SECTION FOR SPOIIEA7— IirzzyczmzI/HR YE STOCK Ar~ // GOLD-N-ROD BUSHING IN SPO TEA WEBS L 1/160/A RET SPAR WD II_I- LI---1L7__- --i fI1ii ----~ 00 O 00 FIBERGLASS TOP N BOTTOM GROWN FOR RH RIND VEGLAPS CL Il/DY FINDRULASS FOR LR RING ORERLAPS IRE SAME 00 p WHEEL COLLAR r-l-S/O2 BRASS TARING R FLATTEN THEN SOLDER TO COLLAR DRILL MOLES TO FIT PAPER CLP POSH RUDS VP HORN SHOWN LH OPPOSITE SPOILER CONTROL HORN I/IA PLYA REQ I/lB RD RE TOP & BOTTOM UPPER SPAR CAP YR P E RED BR H SPRACE SCRAP EPOBY BLRDE BID TO OUTER WINS PRNE yb/B WEB BAA MNEB HALF OF OWO[~& UBLADE TO PRESENT SOCITNO HHLE ASSEMBLNG NNER ROB H PL BN I/B PLY MAIN WII I/B PLY FAD WIO I/B PLY DIHEDRAL BRACE DETAIL ED-I I/IS PLY DOUBLER I/B FUSE SIDE BID I/H IKYOUTER PANELTIP BLADE TOP HATCH WING & TAIL OMITTED IN RI VIEW 0f Y4VI21V NW j WIlB B W26 wO0 WH0 WD2 SPAR FLAT BUILDING BOARD Fl/H-DO THREADS IN FOR -ED-IES-I1O/BRO/HLIED-I I/B PLY DOUBLER R- ~R~J-ANTENNA OLII [17zrII//E3 H-ADRWMAPLE ELEV-RRODEB liiiIi ElIIFOF4ES I-AIRliiil/RI/AI/H 1111PLY PLY BRASS TUBIII I/H-DO RI-I/O B TEE-NUTF1ZP21 NYLON BOLTI FOR 3/B MAPLE IFCTI 1 PINE NOSEBLOCK-FOOl/IA PUPF17 0/AFIN I/BBLOCK j CUINF BRA HOLLOW DUT& FILLTONGUE-GLUETOP HATCH PLYPIB I/A PLYp-U WITH LEADFORTO PIP HATCHBALANCEIIBHIS FIBI I/A- - [I p Iq ___ II _I IIFIIIAE3ESP5ALTERNATE LO BATTERYRECEIVER IB DOERE E ROB55I-FOR 0/BR 3/BFOR ELEVATOR 11I FRhIM 5 MAPLEISEE TERTI -~WVVVVZt14S* -- JIW URNOINS SAID IARTO PLASTIC ELORRMATI locations shown Space last two WI ribs W14 plywood webs glue time Add B Sand spar slots webs sanding tool spars just fit flush top edge ribs Install upper spars Add upper TB Add 16 B spoiler box spar glue eneath between ribs Add 1/32 sheet spoiler box flooring Install four pieces -in-long Gold-NRod upper main spar after notch ing rib inboard spoiler Cut out spoiler stock insert piece Gold-N-Rod act internal sliding bushing torque rod Temporarily tape piece / 16 sheet ing upper main spar fit spoiler using masking tape hinge mate rial Notice bent end torque rod must free slide within piece Gold-N-Rod spoiler satisfied spoiler actuation remove spoiler torque rod / 16 sheeting Remove wing building board add W14 plywood spar box 26 Model Aviation I/3D TUDOR II \ FR-I I/H BOTTOM-EWD EDI 1-SPOWT TOWAROK CAPHOOK I/H PLYREOR RELERSEABLE TOWHOOIR INLAIDSEE MODEL AVIATION RAG BA FULL-SIZE PLANS AVAILABLE . SEE PAGE 164 -I/H SO L EI I-III -_-II~T -II -----ft _FWD SPURSII GRAIN WEBS JL ENTiRE INNERI/IA EXCEPT IF IX I/A--Ii FIRST & LAST II PAIN SPARSIiBAYS MONDROTE HINGE 1/IR X I/H CAP STRIPS 2 5I BINDING LNGIN ILfWI1 jiILZ4L-~ ii Iiii -ZJA. TIP II1~—Z3 ri II IiI/U SI/H SPRUCE VIA SHEETINGIIMAIN SPANSII II --- ----WIWI -------- -Ii-- -I-I/ZTOUTEB GOLD-B-ROD EPOXY IN TEY OSDIAWIRIABEND 5 WILL DOT RON EON RUSH-FIT FOR OUTER PANEL EASY SLIP-FIT FOR INNER PANEL ALL RIBS 3/32 II 1/IAOI-L2 TE TOP & BOTTOM I/B WASHOUT\ -A I/U V 3/N 1/UGAP111 I/RXVZ/I/RRi/H FOR R3 jSPAR SS S5 53 SY I/AOl/H-V II/HOI/2I/A S4 HINGE ON TOPI-S Iffi~MONOROTE FULL SPAN /Q Q uu-utu--uuJ \itQQ-jQQQ QQQ I---~--- SR____________________ 2 RED 3 REQ lIT A-I/N III 2-3/4 DIHEDRAL DETAIL sI/ND 1-1/4 CONTROL TRAVEL ELEVATOR 7/IALW& ON BUDDER 2 LAB ~SA SHIM_______________ p UNDER TEAT EAQI RIB_____________________________-RI WHEE RUILOINGp1 0I234A jIIIA— I/H-- VIEW1iLlj TRIANGLE STOCKFIA FIS I/BDO NOT CAT UNTIL FNOT SHOWN IN p FILLEROLANIAFTER SARONG IIA NGTH FIBERGLASS WITHPH I/H//403/ABOTH FON EXTRA FUSELAGE// I~--- IBEVEL 402 CLOThE BAR RESINE}L2Yj1//SIDES FR12 LAYERS FROM NOSE-TO-FA0IptirI7 hR LAYER FROM F3-TO-FR &FIP10/REf143HI/RU I/A FO TO ON WI 51K EON BLEIDERLHINGE LAYER OF OZ CLOTH FROM ILVUE POUND CORNERSCORNERS BE/p AS SHOWN ROUNDIN SOLO-N-RON R OCR-H IARIFUSELAGE PANGSp1/403/B 3/HSIDES ES-I I/H HAAG BALSABA I/H/403/H GOLDS-HON GCR3 13A1SIDES DOUBLERS PD-I I/IA PLY FLLEHON LH SIDE FOR ELEVATORTOP I/H BALSA_____DORSAL/403/4 HOTTOM FAG I/H BALSA FR-I II RU ON FIN IAFT I/H BALSA ER-DiIA IDA HOLE INSIDE N/3D TIIEN FLATTENED 15FIA R3 -/ LF8 LY/ I/II-Al- AFRTI-Cd4 YI A SPLICE PLATEI/A TRIANGLE STOCKFO-2 I/IA PLYRS 1/4 ANTENNA CONIOJIT FR-D I/BSMALL SOON STRAWS ISMALL GOLDBERG HORN FUSELAGE BOETOM-I/3D WIRE SAIDCOT OFF INNOE HOLE INSET PLATE ON RH SIDE AFT webs Avoid excess glue dont want get inside box section Bind box thread non-waxed dental floss smear glue over add triangu lar gussets Cut openings both WI ribs dihedral joint allow WI 2 brace slip between spars Temporarily fit W12 plywood dihe dral brace spar box obtain smooth snug slip-fit binding sand cut too small make new Fit W12 outer panel fit outer panel inner panel Rib WI outer panel may need readjusted slightly get tight fit joint Epoxy5-min Wl2intotheouterpanel align main panel curing Add triangular gussets four places Mark location TE alignment pin Using No 26 drill hand-ream TE between lower upper sheets accept piece Gold-N-Rod Bend piece 075 dia piano wire 2 long correct dihedral angle Trial-fit wire Gold-N-Rod free slip fit Wax wire Epoxy rod both wing panels wire place wing panels joined Flip plans over trace part outlines Build opposite main wing panel same way completed trial-fit two main panels center line using WIO WI Y8 ply dihedral braces set correct dihedral angle necessary cut away W 1 rib sections forward main spars Notice WIO positioned middle forward spar Wl positioned front edge March 1983 27 IZzzz— SPECIFICATIONS WING SPAN599 IN WING AREA1100 SOIN WEIGHT42 02 AIRFOILEPPLER 3R7 WING LOADING55 OZ/ FT2 ZEPHYR t 100 DESIGNED DRAWNED BTh UC OWENS main spar provides space spoiler control linkage spars fitted properly center line epoxy two main panels together installing Dihedral Braces W9 WIO WI After epoxy has cured take three Wl6 partial ribs / sheet vertical grain leave -in gap center piece accept nylon bolt epoxy place together sand same shape WI rib cut out make room assembly three Wl6s TE center line cut out W17 insert made 3/16 verticalgrain balsa serve reinforcement hold-down screw Install / 16 lower sheeting four panels after sanding LE contour ribs Cut away sheeting slightly clear binding thread spar box After glue dry remove pins place outer panel flat building board place -in shim under tip TE build washout Add weights pins hold down rest panel Now add upper LE sheeting leave dry overnight sure glue put full length spar rib achieve strength possible Repeat procedure opposite outer panel main panels sheeted same manner except have no washout Add W15 beam servo box suit servo size mounting method Add remaining upper lower sheet ing cap-strips ribs upper lower except leave lower sheeting off servo box Sand wing smooth surface match cap-strips sheeting etc Make servo hatch 28 Model Aviation right wing outer panel lust prui sheeting ply dihedral blade already Tapru bd[ segmenis pre-assemoiea spar webbing sanded level special tool prior installing upper spar cap Left wing outer panel shows main spar detail before installation dihedral blade Both forward main spars webbed Demonstrated special sanding tool see text used level ing spar webs obtain close fit good glue joint dihedral blade assembled end wing inner panel spar plug-in box precut pieces ready installed Plywood webs outside spar caps give plenty strength dihedral blade plug-in box Note thread binding ends box fuselage right side built half-shell completing much possible prior gluing fuselage left side Spoiler servo control linkage made paper clipseasy bend price right Also visible torque rods Gold-N Rod bushing material Spoilers would up servo shown Tail surfaces simple build keep tail weight down author trying minimum area giving adequate stability 1/16 ply add blocks similar FIO/FII corner support hatch screws Sand leading edge shape plans IF should about 1/16-in thick aft edge Fiberglass wing center section upper lower surfaces except spoiler servo box 4-oz glass cloth Overlap side produec two layers center section Coat polyester coating resin Sand resin slightly has cured add second thin coat resin Final sanding done #180 gritjust enough break glaze feather edges Install spoil er servo using wood mounting Horizontal stab positioned front fin spar permit elevator horn buried within fuselage Notice elevator con nector wire rud der horn well thin elevator/rudder trailing edges March 1983 29 ne wing paneis neeu oe caretuiiy riuea jogeiner assure slip-Wit dihedral blade trailing edge wire Applying paste wax blade wire helps moisture-proof Spoilers up Simple wire torque rods provide positive controlhere shown during test operation using scrap sheeting masking tape hinges Wing center section detail includes double spar construction wing bolt blocks dihedral braces webbing blacks shown plan MaIe torque rods 1/16-in piano wire leaving 14-in gap between ends center line Make control horns Du-Bro #137 wheel collars 5/32-in flattene4 brass tubing shown Solder tubing end collar Drill through collar arrli #51 bit Drill through tubing fat pushrod #56 bit Install torque rods fit both control horns onto pushrads fit tighten collar setscrews securely onto torque rods Fit spoilers masking tape hinge temporarily Operate servo check spoiler operation using just rod until full 75-degree travel ob tained align other rod bind fine copper wire align two spoiler blades solder wires particular linkage does flat permit spoilers float up launch Fuselage Cut out fuselage parts sure check size radio battery pack sure will fit different radios available impossible anticipate sizes battery pack probably crit ical because four-pencell-size comes sets just will fit recommend 225 450 mAh long skinny battery pack used Futaba 225 mAh pack can thin nose block width mare shown plans have radio out check direction servo rotation against plans just sure control rods proper side fuselage obtain correct rudder elevator throw Once establistied can proceed construction Glue ED-I FD-2 plywood doublers ES-I sides Super Tape contact cement gap-filling type cyano acrylate Add -in triangular stock upper lower edges both fuselage sides Caution. make lgft side right side Note upper aft -in triangles flush ES-I side lower forward sections -in above lower edge lower section aft F6 doubler -in above lower edge ES-I Position right side directly aver side view plans Glue following right-hand RH side nose 3 F3A F4 F4A F5 F6 t1ese perpen weredgeoth d -in up E6 3/16-in down topE3 E4and ES n down ne top edge sides unt wing dihedral angle A44 E9 same manier except flush tap edge RH side anchored pinned irectly over plans glue side directly over sure caating contact sunas.esP bulkheads -in triangles except F7 F8 E9 tail post Use right angle square assure wing bolt area E3/ I4 perpen dicular sides same El 5 area tail will assure coriect wing tail alignment Toobtain proper fuselage curvature place shim blacks under RH side bring up correct center line correct shim black thicknesses 3/16-in F7 5/16-in E8 1/ 16-in E9 9/16-in tail post now should have idea building board has become fuselage jig since sides parallel forward E6 straight-tapered aft E6 Tack-glue scrap a tail past lieu fin spar Apply glue -in triangle E7 E8 E9 Weight down LH side above bulk heads clamp sides tail post Let dry Install EB- EB-2 fuselage bottoms E14 splicepreferrably fluile fuselage still weighted down board Install Gold-N-Rod controls antenna con duit small soda straws joined CA micro-balloons Attach straw CA micro-balloons bulkhead four inches contacts fuse lage sides Install El4and FIS stab saddle Add E16 nose block -in triangles Trial-fit wing tail wing lower leading edge doesnt fit exactly use microballoons resin ruselage fill gaps Locally Mono Kate wing apply vaso line th MonoKate screw wing down squeeze out excess resin still wet cured sand smooth remove MonoKate wing Align wing fuselage viewed tl top Measure distance outer end inner wing panel tail post Both sides should within 1/16 inch same Drill 1 / 16-in hole rear wing screw through wing TE E6B F6C Remove wing re-drill TE 140 bit No 6 screw Install El E2 flush fuselage top edge Add triangular stock Install 4-40 T-nut underside E19 glue place add -in triangular stock Make El 7 top hatch 3/ balsa Drill 5/32-in brass tubing -in long Glue tube F17 CA Fit E17 Continued page 122 plans pros 30 Model Aviation rOROER TOLL FREE 800-854-8411 IN CALIFORNIA 800-472-8456 IN LOS ANGELES 714963-9881 UnY p mall 18480 EANDILIER CIRCLE FOUNTAIN VALLEY CA 92708 Super Discounts Now PRICES GOOD THRU FEB 1983 POWER-START STARTER Powerful 12 VDC electric starter 049 ng ines planes cars & boats NO 1153862499 LIST $4995 FUTABA FP-4L 4 channel sysyam w th 3 servos full Nm-Cd operat servo reversing switches trays hardware frequency flag nasruct book $1999511999 &IL5 P-51 Mustang NO 526327 P-51Mustang Fun ScaleLIST $4495 R/C wood kit Span 51 Area 490 sqin. Engine 19 40 Radio 4 ch name address city I I statezipI mail order catalogs 18480 BANDILIEE CIRCLE I I FOUNTAIN VALLEY CA 928708 • UPEANUT SCALE UODEU I/ ZERO PIETENPOL PIPER CUB ANDRESON MUSTANGLACEY M-10 jPowred PRAIRIE BIRD 4 KIT $595 Kit $596 MILES M-18 ORUINE COUGAR GIPSY MOTH GANAGOBIE SPORT MODElS BABY ACE$649 ONE NITE 28$696 ONE NITE 16$596 STRINGLESS$496 PECK ROG$196 RADIO BLIMPS CONTROLLED II nd 13 FOOT LONGKITS OR READY TO FLY Now IN THREE COLORS GRAY ORANGE YELLOW Low PRICES seven sub-C cells new generation mo tors being developed both manufac turers Theres lots month Id like show some tips Bob Kopski appeared info sheet gave out Annual Electric Fly Hatfield PA wiring diagram SEAM Newsletter remarkable publication join SEAM want keep up $1000 Society Electric Aircraft Modelers 11632 Flamingo Dr Garden Grove CA 92644 Youll shocked Bill Winter 4426 Altura Ct Fairfax VA 22030 Zephyr 1100/Owens Continued page 30 nose fairing add F20 / 16 ply tongue slip-fit between fuselage sides Remove F 17 install wing now carve F17 match wing upper surface Install F17 hatch using 4-40 screw Finish carving F16 F17 obtain rounded smooth contour blends fuselage Install reinforcement blocks tow hook sport flying prefer simple bent screw hook can made cup hangers prefer compete use capture/releaseable hook shown August 1982 Model Aviation uses Fourmost hook easy-adjust method Install fuselage F12 filler F6 top sheeting Trial-fit tail permit alignment tail skid dorsal fin Carve sand fuselage corners rounded section shownjust enough expose FD- triangular stock Leave wing tail saddles flat extra strength competition fiber glass entire fuselage Starting tail apply layer l-oz cloth up F6 layer 4-oz cloth F6 F3 two layers 4-os cloth F4 nose block Use toilet paper soak up excess resin before cures minimize weight gain Sand resin/glass coating #120 grit wet-or-dry paper resin tends clog paper add little dishwashing detergent water wetsand Apply thin final coat resin plan paint fuselage recommend Sand final coating #180 wet-or-dry Spray-paint favorite color material Install servo solder threaded end-fittings control wire Trial-fit tail surfaces control horns cutting wires length Covering encouraged use little imagination selecting color scheme Use several colors have large areas contrasting dark light tones underside prefer have fuselage inner wing panels vertical tail light shade wing tips horizontal tail dark get big boomer three dark areas spaced wide apart sepa rated light tones will help maintain visual contact MonoKote preferred covering material However new Coverite Micafilm will save couple ounces considerably tougher Micafilm seal down edges CA glue before shrinking not-so-hot iron tempera ture Omit covering time lower extension fin spar also stab center line attaches fuselage Separately cover rudder ele vator spoilers attach yet After shrinking covering go over ribs other framework seal down truly necessary wing undercamber Tail assembly Temporarily bolt wing fuselage serve reference cor rect alignment horizontal vertical stabilizers Place horiontal stab posi tion aft fuselage view rear fair distance aligned sand high side fuselage Apply 5-mm epoxy stab saddle clamp place viewing angles adjusting necessary perfect alignment including fin slot should straight ahead Connect elevator control clevis elevator horn Apply heavy coat Vaso line mid-portion elevator joiner wire apply 5-mm epoxy stab around slot joinerin area Vasoline cured epoxy serves zero-slop bushing 122 Model Aviation IN STOCK POR iavumuisei c mir-iviEii New 22 CID QUADRA$10495 Rag 22 QUADRA *6496 wIlt Brtslgheila Flywheel *11496 Reg 22 QUADRA POWER ASSEMBLY ONLY*5496 QUADRA REPAIR*1000 pins parts PEsW RADIAL ENGINES Fleet*2296 JIm Messer ERCOUPSPLANS $2296 KIT *22996 Jim Memr TOMAHAWKPLANS $2296 KIT *24996 BALSA BASSWOOD 111 slasal36% OFF Concept FLEETKIT $17996 FG COWL $1996 QUADRA Snal tanksiSo *69622oz *796 vICKERS LEWIS MACHINE GUN KITS$1496 ALL CECONITE PRODUCTS10% OFF PLANS SUPER STEARMAN IGodfrsyl*3600 STARDUSTER TOO IBrIsIghelial*2996 scala J3 CUB mallS FLEET IConcept*2996 VOLKSPLANE IChlckan Charilel*2296 FLY BABY $1596 SE-B IRanechl *2496 COCKPIT KITS Tomahawk F4U-1 SpItfire $2196 Ercoupa *1996 Stearmnan *2096 Citabns *2496 J3 Cab *1995 ME109 $2150 Flees *2096 FIBERGLASS ARROW SHAFTS W16~ 622 1g61*1000 24-Hour ServIce. Add $250 postage Send Bank Check Money Order t JIM MESSERS QUALITY MODEL PRODUCTS 106 Valley View Dr. Allegany NY 14706 $100 NE 6194424636 eta 4695075 LA MESA CA 92041 FGK SERIES FP-5FGK 1U3 NEW NEW YEARS ready-HA j POSTAGE AND HANDLING CHARGES 1U I$000 $2500 add $300I I$2501 0 add $400I Over $5000 add $500I El California retidents add 6% state sales tax I { Join NATIONAL FREE FLIGHT SOCIETY help develop threshold low speed aeronautical technology NFFS AMA special interest group promotes scientific nature model aeronauticsyear ly publishes SYMPOSIUM volume 10 issues NFFS DIGEST AGRESSIVE participate THINKING group Send membership applica tion HAL WOODS Printer 1 YR 707 Second St 2 YR Davis CA 95616 Checks Payable NFFS JR SR/OP 7501500 13502700 Friends AERO CLUBS OF ISRAEL SUPPORT AERO MODELING IN ISRAEL FREE FLICIIT NATIONAL CHAMPIONSHIPS BEERSHEBA ISRAELAUGUST 1983 FLIGHTS -ARRANGEMENTS- TOURS 47-02 29th Ace. Fleshing NY 11354 GET ORGANIZED Metes set 4 Sturdy files holds Over 4 yeats itt yitur tuacitle Sirft magazines 4 MAG FILES $495 Send $455 PIes St 00 gosfage handling DON INDUSTRIES PO BOX 388-K DOVER NH 03820 124 Model Aviation Vasoline permanent lubricant rustproofer Before installing elevators glue vertical stab horizontal stab slot tail post slot 5-mm epoxy Use right angle assure square horizontal stab Add R5 skid Epoxy wire skid place Add fiberglass skid aft fuselage strengthen skid against side loads during possible ground 1oops Paint Mono Kote skid area Install elevators using epoxy joiner wire hold elevators stab masking tape lower sur face Leave 16-in gap Iron MonoKote hinge full-span top sur face Check free travel 7/16-in up down Add -in patches Mono Kote underneath ends elevator Install rudder using plastic hinges locations shown Install rudder control horn after cutting away innermost hole provide clearance fuselage side permitting least 2 left right travel Spoilers installed MonoKote hinges after application small amount Vasoline torque rod bent ends no glue spoiler should lay flat box flush upper surface wing Hold spoiler place mask ing tape aft edge assure / 16-in gap around seal down Mono Kote hinge forward edge Check spoilers free travel Balance location balance CG shown plans 32% mean aero dynamic chord fine general flying Penetration good moderate winds strong winds ballast can added fuselage allowing CG move forward about inch just about main spar Flying no special tricks flying Zephyr 1100 flight characteristics can described short phrase excellent floater isjth good penetration grooses up winch line strong enough zoom launches examples built date have performed similarly almost no experimentation has made attempted improvement Climb angle launch exceptional great strength eliminates worry about folding wings Highspeed dive capability permits rapid descent flutter altitude time runs out duration evcnt Add plastic electrical tape around wing Outer dihedral break seal air gap keep Outer panel place ballasting thing locate ele vator servo couple bays back between Bulkheads F5 F6 leaves fuse lage bays fore aft F3/ F4 open ballast Sixteen ounces lead will fit will raise wing loading up 4 oz sq ft Additional ballast can added wing spoiler servo box some addi tional strength added hatch Pop-offs have problem nearly vertical launches Just sure strong tow hook used because regularly breaks 120-pound-test winch line Happy thermalling Radio Technique/Myers Continued page 33 designed ease used shallower box 2 folks use put provisions two special cards left no room addi tional battery packs Along came Larry 900 mAb cells look what happened Ace 450 mAh cells plastic boxes 74 222 485 8 oz SR 900 mAh cells sleeve 70 206 ii 525 93 oz weight increase 13 oz. doubled transmitting time enough room box accept extra 4 width actually ended room other two directions does cut open SR900 cell find out Well laws physics havent changed want capacity use plate area micrometer says plates SR900 cell 2 3 thick 450 mAh cell Add fact 450 mAb cell wound plastic rod white SR900 isjust wound mandrel appar ently later removed throw considera tion SR900s can measures 645 OD 450s can measures 535 OD. begin understand SR cell winds few turns package As regular readers know Ive using SR900 packs Helicopters Baron 20 Heliboy now can say after 50 hours flying havent problem traceable batteries use SR900 packs deal added current drain some gyros rather add second pack purpose would add lot weight comes charging plug MEN C 50 charger walk away lunch com pletely discharged pack will stay High Rate about 90 minutes often theyre back Ioss Rate less hour Lets end discussion batteries yet another Fast Field Charger FFC Ace RC recharges both Transmitter Receiver same time circuit BE LEADER SCALE DOCUMENTATION SCALE DRAWINGS9PHOTOS-BOOKLETS MODEL PLANS 1982 AIRPLANE CATALOGS $200 REPLA-TECH WINTERNATIONAL 12 K I48500 MC KENZIE HiA/V VIDA OREGON 87488