U el consiruciion wcnniques aiong WlTfl Knowleoge gained prototypes place plane leading edge FAi Speed modeling MANY OF YOU will look over design ask yourselves model airplane ever came look like point asymmetric Control Line model has around since 1940s never gained popularity until discovered much speed gained through use longer inboard wing cover up two control lines used FAI Speed Chuck Schuette current AMA FAd class record holder first utilize asymmetry caught internationally mid-70s two Hungarians took limit wings long five feet outboard asymmetric sidewinder model now known much complicated build conventional AMA-style Speed model else being equal offers three four mph advantage understand FAI Speed mod els have evolved exotic creations today might helpful review brief history event first Canadian national record holder attests just much form follows func tion comes streamlined shape FAI Control Line Speed plane Chris Sackett Control Line Speed World Championships held 1955 Croix de Berny just few miles outside Paris rather loose affair no official team US airplanes very small high wing loading creations typical AMA ships early SOs fuel unlimited line diameter fortwo lines 25mm Jozef Sladky Czech oslovakia won event 1113mph using own engine Editor AMA files show CL Speed World Champs history bit different being 1954 World Championships Hague Netherlands 1954 contest two Speed classes 5cc 25cc Bob Lutker US won 5cc class second attempt World Championships Czechoslovakia 1957 EditorReallyafourth 1956 Speed World Championships Florence Italy team trials held US models proxy flown con testants could agree models never sent until 1960 World Championships staged full US team time 72 Model Aviation specific wing loading requirements still unlimited fuel Monoline accept able although its use protested Italians Ugo Rossi Italy won event actually whipping model narrow ly beat 2nd-place finisher Bill Wisniewski 146 142 mph first time models FAI size 7747 sq minimum used 1962 meeting Kiev straight fuel combination methanol castor oil first introduced Chuck Schuette fathers asymmetric sidewinder designs attended US team member conventional symmetrical mod el flew asymmetric backup ship practice may have Euro peans first sight design sub sequent World Champs kinds asym metric designs turned upeither upright semi-asymmetric true dog leg inboard full asymmetric Californians Chuck Schuette Arnold Nelson Bob Spahr among others used inboard design number European speedsters notably Italians playing outboard layout plan pan inside engine head outside flying concept classes Speed including 10cc class basic design almost universally accepted now competing nations FAI Speed except US team members continue use inboard version prime reasons utilizing outboard setup enable modeler use pure suction fuel feed system pan inside makes room large hard tank inside centerline venturi engine can have richer mix during flightsomewhat like having mild form pressure system simple reliable model becomes airborne quite easily first decided design model borrowed lot ideas came up some own hoping best worlds wanted long inboard asym metric wing outboard fully asymmetric layout model clean could expected slim fuselage enclosed pipe two-piece shell easy main tenance As designing model Jurgen Lenzen West German FAI flier just made available perfect sidewinder speed pan integrated wing stub based final design around pan speed pan available Jurgen Lenzen Alfred-Dobbert Str 57 5600 Wuppertal 2 West Germany Twen ty US dollars will bring right door wing can obtained Sackett Products PO Box 82294 North Burnaby BC V5C 5P7 price $30 US Rossi MK III available Rossi Sales America 1325 Carol Dr Memphis TN 38116 speed pan Take exact dimension front pan leading edge wing set up speed pan carefully stock pan comes root chord too wide leading edge fillet must cut back accom modate 3-in -wide wing dimension leading edge backplate spinner must 3 will have grind inside pan carefully provide clearance Rossi 15 get right location Once satis fied spray some blue layout dye mark holes scribe center punch drill tap 4-40 bolts Make up aug hold pan 900 drilling make sure dont drill through casting must work utmost accuracy sloppiness drilling may give up downthrust engine next step installation spar control system spar formed piece -in aluminum bar stock can found metal shops Type 7075 nice necessary original built piece soft aluminum working just fine Cut piece 25 taper 2 tip Notice necessary spar extend full length material can tapered lathe simply filed hand flat top bottom spar attached pan tapping threading -28 tapping pan use ajig drill press assure accuracy Test-fit spar pan make sure everything lines up square may find necessary use small shims between spar pan order obtain desired location wing aligmnent incidence January1987 73 ne two-piece cowi ne engine nas uniflow ram intaketube sealed tothe cowl rubber grommet Lenzen counterbalance spinner needle valve has shortened facilitate engine removal disturbing flight adjusted setting suction-only fuel feed system has proven very reliable Note position overflow tube tank pressurizing purposes quick-link pushrod connector set root fillet pan 010m wing skin slips over fillet ng fillet can set exact root angle attack Using wing correct twist carve 090-in positive inci dence root pan Wing Making aluminum wings very simple once youve tried think youll agree quickest easiest form wing can make material ALCLAD 2024 T3 thickness 010 Speed fliers find material aircraft surplus stores around airports service work cost outlets quite reasonable sheet 3 x 10 ft will build airplanes Determine grain material first can seen brushed effect material possesses after being rolled mill sure lay out wing grain running leading edge trailing edge Otherwise wing will split being folded Use spray-type layout dye aluminum surface mark pattern carefully scribe Cut wing No 11 X-Acto blade scoring aluminum skin three four times necessary cut right through material will break off very cleanly bent slightly achieve airfoil section must first bend material flat sheet metal brake Failing can clamp between two pieces 2-in angle iron clamped large vise use third piece straight angle iron bend 900 Remove vise carefully bend flat workbench using couple planks -in plywood Try flatten fold around 6 nice sharp leading edge Open up 30 using couple pieces sheet metal making sure straight true ______ 5/3 STABILIZER DIHEDRAL SKID 7-34 TA ILS K ID 7K51/2 21/4C - STAB 3/1K SO HARDWOOD-C VI HARY BALSA STAB STIFFEN BY RUBBING K B POLYESTER INTO GRAIN COVER WITH 2 07 FIBERGLASS CLOTH P2 ROSSII OR TUNED PIPE --4 \ 047 COWL ALIGNMENT PINS -lFi S-D2 TIE-DOWN BOLTS L/IK PLY TANKI SHIELDCIi II 1W ROSSI IS MK III I ENGINE L i 1 REMOVABLE COWL I CARVED FROM BISS BLOCK 1-1/21-1/4 9CUSTC*4 2BO AWM VENTURI L4 ALUM TUBE /1HEASPIPE COOLER OZUS I/B COOLING SLOT SIDE VIEW DSK CF PROPELLER 0I2345B Rough up inside bonding surface wing ooarse sandpaper bond Goodyear Pliobond Clamp wing between two pieces 1-in angle iron good-sized vise Align carefully until get desired airfoil section slight washin effect Clamp last /16 trailing edge get true symmetrical airfoil no polywog Clamp full length wing small C-clamps spaced 6 bake 3500 oven hour half An alternate method ofbondingthewingistouse 3M 2216 gray epoxy clamp same manner Use little possible weight will build up quickly Belicrank Cut out bellcrank piece 030 CRS shown draw ing sure bush holes brass tubing Cut slot boss provided Lenzen pan accept bellcrank crank anchored 4-40 flathead Allen screw tapped pan make smooth bearing surface bellcrank run some solder approximately 080-in over threads come contact bushing 74 Model Aviation authors Rossi features modified needle valve custom-shaped 265-in alumi num venturi custom speed pan available Jurgen Lenzen West Germany bellcrank resides beneath fuel tank Two mounting studs hold tank place Full-Size Plans Available. See Page 180 FRONT VIEW 5-56 1/4 BUTTONHEAD WING RET SCREWS S8 oR~LDRAM-FILL T VIEW RAME- 43/IS A FR I/G HITH METALkILW I/R4I4V8 TOP VIEWSIDE VIEW FUEL TANK DETAIL BUILD FROM 006 TIN FILE IN TOOMODIFIED SCREWORIVER NOED FLAT 070 CUT EEDLETOI070 SLOT NEEDLE VALVE MOOS S/IA BIL SILVER SOLDER TOOl-WOO RUTS-I FOI9MED -S/4 oS/B L52 BRASS PUSHMOD SUITES ITYPI 3D OCOCK LINK SASS EM BLY 0235 CLIP ASSY PRATHER 4OBO C/IA PLYNDOO TAKF-OF flOLLY Ho-oH SIDE VIEW FUEL4-40 BELLCRANI BOLT FU00ROO SHIELDTAP 1004 v4-2BLOCATION PORTIONBELLCRANK 030 CRSD -D 6-32 TANK MCUNTING STUD -1/10 PLYWOFIU E -E N 0 GJBAO TA IWO EEL 10-S/A---COVER ALL WIRE IN CONTACT MED SIZE__SILICONE TURING SCALE I/S SIZE II/R MUSIC WIRE N-I/A TO MODELWIRE 01-1/2SAAPE FRONT B REAO 3/30 TAILTRAFCRACCES TO SUIT MOSEL WIRE ____2-3/4 OUBRO S/I/U SOLDER WASHERS ROTH SIDES FRONT VIEW F-IF-2010 2024 ALUM WIND PANEL 1 TANK MOUNT_________AVAIL FROM SACKETT PRODUCTS SSBOO 02294 BURNOOT BC CANADA VSC -SF7 PANEL DIM 3s 3/4o ST-I/B LA Do5/4 VASS MONOLINE 30K UP BUTTONS TOP VIEW SPAR FORMED FROM 3/B -6061 TO ROUND STOCK THREADED TO PAN LEADOUT GUIDES FROM FLATTENED I/H BRASS TUBE SIDEWINOER PAN AVAILABLE 3URGEN LENZEN ALFRED-TOBBERT 575600 WUPPERTAL 2 W GERMANY 1/16 PLY PIPE/TANK SHIELD N SLEEVES GASS TUBING - A-A ______________ CUT BACK WING FILLET TO ACHIEVE CMENSION U-S/A 025 3/0 __ -045 II-236 WITSIF 035 DIAz-F-F TAILS KID REPLACEABE 078VOW OF PAN SlIOSRISO POSITIVE WIRE SKIDREID GMENSIONS-WINN 0 ROILT MODEL AVIATION EAI C/L SPEED WIND SPAN37DESIGNED B DRAWN BT WING AREA 716950 INCHRIS SACKETT STAB AREA2BBBSO INTRACING BY LENGTH19JOE DEMARCO WEIGHT20 TO21 OZ CANADIAN NATiONAL RECORD HOLDEI9 Cut out exit holes pan wing fillet area control lines lines attached using small Monoline buttons hooked up 047-in lead-outs see drawing Finally drill tap two 632 holes tank mount Finish shaping pan externally until get exact shape want lap engine mount surface some emery paper oil plate sheet glass Square mating surfaces true up much models favorable flying char acteristics will depend upon alignment entire model based around basswood crutch great care should taken get stab mount ing surface square thrust line Start laying out centerline both sides Ys-in crutch work solely reference line Beginning square edge locate cut stab mount area should sit 70 dihedral angle h-in below centerline crutch Its easier keep everything aligned work table saw can cut hand youre accurate Lay pan crutch centering Continued page 166 January 1987 75 variety slnglebiade carbon fiber props Lenzen counterweights Props ob tained varlousspeciaiity manufacturers theones range pitchfrom 54to59 Bought Colored Fuel Line YOU DEFINITELY PAID TOO MUCH Pay Fancy Colors ON ENGINE DETERMINES REQUIRED TUBING DIAMETER EXTRA LARGE 125 iD 250 001 SH-616 2FTPKG $135 SII-661 2$ FT ROLL $1325 LARGE 093 10- 215 GD SH-2901 FT PEG$ 89 SH-646 2 FT PKG 111$ SN-291 2$ FT ROLL $1295 MEDIUM 062 ID- 156 ODl 54-2851 FT PKG$ 90 SH-545 2 FT PKG $110 SN 28925FT ROLL. $1195 FUEL FITTING SIZE * Heat-Proof will melt resting dIrectly hotteSt part running model engine Wont Harden Fuelil'~ 9111 Resistant Cuts TearsNOT FOR GASOLINE Sig first introduce silicone fuel line tubing model aviation market way back 1964 premium tubing still comes its original natural white color Some competitors would have believe ad ding blue red yellow dye tubing charging higher price makes product better dont believe Sigs original silicone fuel tubing has important characteristics need quality fuel line None Better Any Price OR COLOR See dealer first available order direct Call 800-247-5003 toll free orders Latest Catalog $300 SIG MANUFACTURING CO INCMontezuma IA 50171 Say8 th8t old TinierjtGI st 550115 Gte1W$OflFrom this. peEt VtUQ. 1-eES TaOtS Mole 4 Ignition Engine Parts Only Over 600 items Send $200 current catalog performances Championships showed aeromodeling sport can unite competitors countries no matter good individual may perform love talking about model airplanes should also remembered dont go wont learn learning essential part improv ing performance contestants finished following order best speed kilometers per hour listed 1 Kalmikov USSR29363 2 Piskalev USSR28800 3 Mult Hungary 287534 Dodge USA28639 5 Choj nacki Poland28639 6 Szegadi Hungary 285267 KohaniukUSSR28191 8 Molnar Hungary28059 9 Rachwal Po land27993 10 Schuette USA27734 11 Novakowski Poland27522 12 Ding PRC27231 13 Zhu PRC27231 14 HalmanUK27 149 15 LiPRC 27027 16 Assen Bulgaria26905 17 Kabakov Bulgaria26745 18 Kales Yugo slavia26548 19 Bianchi Brazil26 181 20 Matilainin Finland25714 21 Schmidt FRG25622 22 Hrustanovic Yugo slavia255 34 23 Hiern Australia25495 24 Rosenhan FRG25263 25 Magne France25 174 26 Brewin UK25 122 27 Bilat Switzerland24879 28 Borovac Yugoslavia2481O 29 Borer Switzerland 2474230 Bontcev Bulgaria24590 31 Metkemeyer Netherlands245 2332 New ton USA24406 33 McGalddery UK 2435734 Bertin Brazil24324 35 Fall gren Sweden24096 36 Christen Switzer land23952 37 Rietbergen Netherlands 23952 38 Kjelberg Sweden23809 39 Valo Finland23560 40 Wake Australia Great Planes Big Stiks offer quality ease r assembly superior flighf characteristics never before available stik style models Features include notched interlocking die machine-cut balsa plywood parts fast accurate construc tion hardware Additional hardware included either tricycle talidragger configuration Three versions available 53 span 20 size 59 span 40 size 60 size require 4-channel radio Available al KATPIAftIIi Leading Dealers ~JELE Nalionwide P0 5ov721 U va IL 61801- 23047 41 Fagerstrom Finland22929 42 Hanting Australia22332 43 Pinho Brazil0 Thanks once again David Brewin member UK Speed team report Gene Hempel 301 N Yale Dr Garland TX 75042 CL Racing/Ballard Continued page 70 fiberglass/epoxy prop means epoxy curing agent mixture improper prop should sent back manufacturer refund/replacement addition inspec tion fiberglass strands blade shows minimum amount strands hub area prop will certalnly prone shrinking under heat pressure high-winding Rat engine end flying day always take props Ive used inspect front strong light see internal cracks alr bubbles may produce crack subsequent failure also look hairline cracks around bubbles locked epoxy could lead blade failure As always solicit comments ideas photos John C Ballard 10102 Kimblewick Dr Louisville KY 40223 responding advertisers mention read about ModelAviation Wi Idf ref Sackett Continued page 75 carefully taCk-glue position using few drops cyanoacrylate CyA Draw outline fuselage rough-cut toshapeNexttakeapieceoflx lx 10-in medium balsa tack-glue position tailpiece outer shape fuselage can sanded final shape leaving area re movable cowl unfinished Break assembly apart clean pan mount enginetaping up openings keep dust dirt out until shaping work completed Locate four tie-down holes drill out little oversize accommodate brass tubing glue tubes place slowdrying epoxy such Hobbypoxy 2 ensure accuracy wax tie-down bolts insert position gluing tubes Use elastic bands hold pan crutch position Let whole thing dry least 24 hours Take assembly apart use coping saw cut out center crutch outline shown drawing Decide whether wish enclose engine lugs completely fuselage cut around suggest enclose engine completely tends weaken crutch severely otherwise slight amount material will have removed lugs Rossi 15 accomplish Cut lugs back ~ia inside pan leaving enough material crutch adequate strength cowl formed blank straight-grained basswcod prefer wood cowl over fiberglass lay-up better vibration-damping strength Start cutting out engine hole diameter Ys6 larger head Use circle cutter rough-clearance inside allow cowl accept engine Rough-shape outside approximately er around shown drawing tack-glue crutch blend rest fuselage Break apart install pipe clearance inside ap proximate thickness Y32 in pipe area front should solid 166 Model Aviation FIBERGLASS COWLS 70 cowls eelpants Sig Pica Top-Flue Jesce Nosen PIlot Stafford Radials Bebrens Garmhausen W E Tech other kits plans One-piece laminated construction handlaid fiberglass strong lightweight Send SASE price list please inclpde names models interested parts br call between 9AM o PM EOT informatIon COO ordering hope hear veul FIBERGLASS 703 890-6017 iI1lept~tii Ba 530 Geodview VA 24895 possible Shape sand cooling slot venturi opening As may have noticed needle valve exits right cowlcrutch parting line So remove needle valve disassembling model needle shortened modified will covered later Stabilizer quite important build light yet very rigid stab assembly order get center gravity CG correct Select piece stiff medium-hard %6-in balsa cut shape stiffen i/u-in sq spruce hardwood Use slow-drying CyA Sand perfect symmetrical sec tion cut out elevator area elevator used original all-metal type built correctly will resist failure vibration fatigue Simply solder up frame shown plan use Sta-Brite fold over 010-in aluminum skin Cement place 3M 2216 epoxy control horn cut bit 0 30in CRS bushed 055-in pushrod Check sure height horn axle pushrod exactly /6 model may too sensitive Carefully attach elevator stab gluing i/n-in tubing ends axle slow-drying Hobbypoxy 2 sure dont glue down elevator wax areas Chapstick glue needed dry sand smooth stiffen stab couple coats thinned K&B polyester resin rubbed grain cloth Three thin coats should fine Further stiffen stab covering 2oz fiberglass cloth resin dry sand off lumps finish two coats clear resin Test-fit stab fuselage Hollow out enough material crutch allow control system work smoothly hollow tailpiece thickness rod must installed elevator attaching stab crutch Coat control areas Chapstick glue place pusbrod two-piece affair allow disassembly ship back half cut approximate length can now install two /16 ply formers two i/n x pushrod guides As shown draw ing pushrod runs close inner edge fuselage Bolt whole assembly together hand-fit pushrod its proper position Fine adjustments can made resoldering quick-links along pushrod adjusting threads Before gluing tailpiece good idea fuel-proof tail section few coats clear epoxy dry check smoothness operation system must precise little no play otherwise flying becomes erratic high speeds sloppiness fix now Carve sand pipe area like get nice smooth seat float pipe attached englne head pipe somewhat floats fuselage use two small 031-in wire hooks attached head pipe around front engine small spring way mount tuned pipe avoid bending breakage Test-fit /16-in tank shield ad justing come close possible pipe touching necessary because youll need room can get tank adjustment satisfied glue place tank shield important prevents fuel becoming heated during flight Install 055-in skids stab fuselage keep pan good alignment during hard wear tear ships receive glue four alignment tabs made /u ply Put two very front pan two rear make perfect fit like actually mold mixing up filler epoxy glue finely-chopped fiberglass cloth dabbing over tabs waxing pan can now put crutch-pan assembly together tie-down bolts dry will break apart perfect-fitting pan no play cowl mounted ship Prather DZUS clip 047-in wire hooked crutch Finish have found K&B Super poxy system works best providing tough durable fuel-proof finish begin treat bare wood surfaces reball RIC Idle-Bar Glow Plugs Long Short$1 89 Also. Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal $149 Only Swanson Associates PO Box 151 S,x 1948 Wayne NJ 07470 Remember 40 Wing 15 25 Engines Dealers ributors Welcomed Phone 703 273 9593 FLYLINE MODELS INC PO Sex 2136 Fairfax VIrgInia 22031 U 5 January 1987 167 ~----- YS Engines Parts Atlanta Kits Challenge IV Kits Hattori Pipes / Headers FAT RC Pattern Specialties PO Box 388914-248-8603 Lincoindale NY 10540 4 Classic R/C Scale TI4 SGRAT LAKES CORPORATION St tsA g0245 SANDER ADJUSTABLE TENSION HAND RFLT cAlibER MINI-STRIPSPRECISION DIE-CUT Medium Garnet SAVES TIMEREPLACEMENTFinn Garnet AND EFFORT 8165 SANDING BELTSAsstd Water Print TEE e BAR ALUMINUM EXTRUSION SANDING BLOCK tar use RUFF-STUFF Sell adhesIve sand paper Large True Surface Wee tWearOut 11 Inch 8251 Handy Use 22 Inch 8375 RUFF F ELF ADHESIVE SHEET MAKE SAN OMPER YOUR OWN SPECIAL SANDING SHAPES Easy Use Medleer Fine r Pine $39 Ho glee er drying MINIisAw $79 COMPACT 10 inch HACK SAW SAWS ANYTHING ANYWHERE Saw has rugged die-cast frame corntprtable chip-pruet plastic seal handle RecedIng nun sad ad testable B bled gives good work access Cats wood plestic metal HARDENED MUSIC WIRE extra hlades-SI$199 Add 20% postage Send 25 cotlog three coats K&B polyester sur facing resin thinned about 50-50 Spray couple coats K&B primer sand smooth spray favorite color thinned 200% get really smooth shiny look have spray very fine coats wet look really quite simple little practice can achieve out standing results Fuel system fuel system com monly used worldwide simple pure suction method Most other forms fuel delivery have inherent inconsisten cies inconsistency last thing need models fly tremendous speeds tank shown drawing must no wider /i Otherwise weight fuel centrifugal force will make difficult get engine lean enough optimum setting tubing h-in brass should cover pickup tube tank fine screen prevent air bubbles entering fuel line tank must float mounting studs totally free metal-to-metal contact pan achieve running large-size soft sili cone tubing inside 5/su-in brass tube mounting brackets using small rubber groinmets caps ends tank located adjusted using 632 aircraft nuts washers mount ing studs Make sure use grommet fill line passes through pan venturi diameter will probably determined individual model should try run large opemng possible still have enough fuel draw get off ground Start out stock Rossi unit enlarge around 280 like can increase performance adding air-collecting funnel exist ing venturi help supercharge mix enters crankcase can achieved gluing piece aluminum tubing existing venturi flange epoxy machining out bar stock Engine Wildfire built around Rossi Mark Ill engine good racing 15 will work OPS 15 good choice Cox K&B engines will fit spacious Leazen pan just fine Start rework carefully disas sembling engine inspecting parts remove bearings heat oven 300 lightly tap case bearings will fall out freely Remove casting steps main bypass areas crankcase Dremel tool polish Rossi pretty good engine out box rework should need case latest Rossi pipe-timed engines coming through revised crank liner timing figures crank should open 350 after bottom dead center close 650 after top dead center Crank work starts boring out inside diameter about 300 Radius internal areas fuel flow FLYING SCALE MODEL RIC PLANS Super Detail e Photos Instruction Sheets _ h Plans 19163 Shadowood Dr Send SASE foe listMonument CA 80132 * SCALE DOCUMENTATION * SCALE DRAWINGS MODEL PLANS PHOTOS BOOKS EPLA-TECI-I AIRPLANE CATALOGINTERNATIONAL ova ioo PAGES48500 MC KENZIE HWY S3OOVIDA OREGON 97488 Vacation 5C W0305D Handy Dissey World Kennedy Space Cester sod rent Florida 3 Bedrooms sleeps 8 Kitchen A/C Pool Tennis sod lots li/C flying Nov-May 5500 wk / June-Oct 0450 wE / sightly monthly rates also available R17 5284045 sheen w/accessorses UTNES $2795 Up PeeciStOfi Tools Book Metale StOO Cubing CAVPIELL FGLS CG 210CM SeIne Rd BpnlngflehdOtrlo 48506 513-322-5562 Mae eG MAoeees ew MOP SIIPPLID 5 For Avwson Models ANDINC III 100 W 20525I M eosd, Nan C,oOogs 01304-562 3030p j SeOfr ,,Oerfordn odqoOk,nla& o1 Ito BOX 42B5PTLANU N C28776 CARBON MAT SAMPLE 2 OR 5 OZ/SQ YD SEND $100 EACH TO AEROSPACE COMPOSITE PRODUCTS PO Box 16621 Ervine CA 92714 PSAW DIESELS Englands Finest 049 35 RJC STD Send $100 list Eric Cluttoni 913 Cedar Lane Tullahoma Tenn 37388 Ia SandSSAEoar complete ito 168 Model Aviation ERSR Padded flats curves Handy Hold Easy Us OUALITY FREE FLIGHT KITS AND SUPPLIES FOR COMPETITION AND SPORT SINCE 1975 Duster inquiriesCatalog 500 invited BLUE RIDGE MODELS. [DCO SKY DEVIL 65 Ignttnon Approxed 90 Day Warraistv - Twin Ball Bearing Crank Americas finest old-timer engine Originally designed Hassad & Havlik replica engine resonic tuning ensures continuous flow power through speed range Look out green one$ goodbye red headT&Ds replica Sky Devil 65 $279 less coil cond & plug alit lesldents add 6% sales tax ORDER DIRECT T&D RESEARCH AssoclArEs 6371 El Cajon Blvd Suite 115 San Diego CA 92115 SI FOR BROCHURE well opening counterweight area shown drawing help atom ize incoming fuel charge carefully cut eight grooves around crank hole back good idea cover crank pin small piece brass tubing protect grinding latest Rossi Mark III engines pipe-timed variety using ABC piston liner sets timing figures 1270 transfer timing 1940 exhaust ideally suited high rpm small prop alcohol-burning models FAI Speed type need to liner smooth out corners transfer boost ports little better fuel flow piston liner assemblies set up very close optimum fits right out box should no need lapping refitting connecting rod can streamlined symmetrical section improve fuel flow should done small jewelers file set using rounded files corners Finish up No 320 paper polish out ensure have good leak-proof seal between liner glowhead first lap liner top flange piece No 400 paper glass remove machine scores take old glowhead lap two together mild-cut polish achieve perfect fit Thoroughly clean parts before reassemble Its good idea scrub parts toothbrush methanol follow ultrasonic cleaner have case should clean free lint Warm up case drop bearings crank Put prop tighten up seat bearings let cool slowly test spin crank should spin freely six seven seconds come stop TDC top dead center binding occurs warm case again tap lightly small wooden block will seat bearings properly new Rossis really precise engines should experience no difficulty step Assemble rod wrist pin piston liner engine dry turn over check binds roughness go engine should feel extremely free except approximately 040 TDC liner taper cinches piston set up head clearance mark deck height TDC compare depth plugs using various shims try achieve head clearance 022 024 start withor maybe little Later flying can play dimension attain maxi mum power particular combina tion backplate used stock comes although some guys have success shimming out 040 050 aluminum spacer engine needs very little break inmaybe 10 15 minutes fast four-cycle hops Bolt 7-3V2 prop cut 6-in diameter run fast rich no pipe first 10 minutes needle holds steady try few peak runs check rpm tachometer should read figure around 27000 maybe 28000 good engine Attach Rossi No 2 pipe bring up peak take reading rpm figure should around 34000 35000 An engine will turn rpm good high 1 60s right prop An engine tachs 33000 will fly FAI ships around 158 mphvery competitive what Rossis will turn right out box wish can pass up engine modifications initial flights get feel airplane modifications later can note difference Propeller Single-blade carbon fiber some cases hardwood props have accepted standard FM Speed flying since found way go fast alcohol through high rpm number companies produce props different styles pitches Try 62-in di ameter 54 5-in pitch best results Mark III Rossi Jurgen Lenzen has copies famous world-record-holding Hungarian desigus well number own prices very reasonable about $5 Props also available Walt Perkins Bill Hughes myself Dolly Construct dolly shown note too asymmetric help balance model dolly January 1987 169 -uriumaflCe System Tar iuP PERFORMANCE K&B ENGINES AirplaneManne K&B FUELSK&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER P0KV RESIN K&B SUPER P0KV THINNER K&B SUPER P0KV PRIMER K&B SUPER FOXY PAINT K&B MIXING CUPS __ ADVANTAGE HORNET Strap yourself Americas first digital fighter Follow Hornet through design testing Come board aircraft carrier qualification weapons testing US Navy USMC Allied squadron training deployment Get Hornet handlers view cockpit move sky around See two types fighter pilots. fly Hornets wish didl! Video Running Time 45 Minutes Specify Beta VHS Send Cheque Money Order To GareexProductlonsOept T 460 Grandview Ave London Ont N6K 2T5 us canada add 5350 shp 5 non Oni Oesdenls add lOb POT $499 Inclode Visa o MC# nook den tlCa5on C Eopi5 Oaie Allow 23 weeks delivery SHIPPED DUTY FREE INTO USA ensure good tracking line tension dur ing critical takeoff period Take time build very true straight unit solder joints pre-soldered wrapped fine brass wire soldered Sta-Brite equivalent high-tempera ture solder making dolly sure slip some silicone tubing over areas come contact airplane before final assembly Flying Check model carefully make sure everything solid operating 100% two lines should double looped prevent chance ends opening up causing disaster Two-line models quite safe Monoline AMA models use very large wire diameters easy maintain safetys sake always inspect lines before flying kinks other signs wear begin approximate needle valve setting strap standard bench test prop fill tank fire up engine After slight warm-up period engine will hit pipe dramatically Adjust needle full-peak run slightly rich side shut off engine placing thumb over back pipe open needle another one-quarter turn bolt flying prop Youll ready first flight make fuel system work correctly must first understand tank position sets needle flight adjustment should make needle get setting necessary become airborne Fire up engine let warm up about 10 seconds raise nose slightly lean out pre-stage pipe Once engine picks up lower stage pipe will have enough power launch Hold elevator neutral until sufficient speed attained lift out dolly usually one-half three-quarters lap release model engine floods out rich flight move tank outboard slightly about 0/is try again until steady full-peaked run achieved engine runs lean hitting pipe off move tank inboard slightly go again small amount Wind Direction Anytime Anywhere B FLYMj SOCK 5 inches plus tails Attaches antenna mast Iclips includedi Available frequency colors IGive frequency number orderl $95 plus5&H66jj ForaignordersaddS&H$150 Calif Residents add 6% tax Jeffla Products PO Bex 484 Lake EIsInore CA 92330 fine tuning like will find optimum setting very easy come should very consistent FAT Speed tremendous challenge Just coming up good-flying airplane reliable fuel system half battle Wildfire solid good-flying ship allows concentrate other es sentials such engine propeller build model carefully follow directions shouldnt hard become competitive eventually join world class competition Give try Speed equipment suppliers/information North American Speed Society PO Box 82294 Burnaby BC V5C 5P7 Canada Topflight detailed information phases CL Speed flying Quarterly publication $1 5/year Ed Chris Sackett Jurgen Lenzen Alfred Dobbert Str 57 5600 Wuppertal 2 West Germany Speed pan Wildfire Speed model FAT single-blade props metric-size lines Sackett Products PO Box 82294 Burna BC V5C 5P7 Canada Aluminum wing panels carbon fiber props Rossi Sales America 1325 Carol Dr Memphis TN 38116 Rossi 15 MK III engines Rossi 15 tuned pipes glowheads Shadow Racing 1100 SE 28th St Ocala FL 32670 FAT single-blade propellers carbon fiber special prop-making epoxy Kelly Props PO Box 38 Western Springs IL 60558 sizes FAT single-blade props glass graphite Mall Show/Nunes Continued page 77 Ask manager tables barriers tablecloths etc available use display mall location provides materials set up take down finished mall area does provide items mentioned will have take steps locate secure items 170 Model Aviation SWEITZER ENTERPRISES KI CATALOGS PO BOX 834HILLSBORO OR 97123 PLANS----52OO RESEARcH cENTER--$250 3-VIEwS PHOTOS & MANUALS PHONE 503640-5102 i/4 SCALFOPT22 Kits WINGSPAN 901/4 GINEBASIC KIT 2- 8 Balsa fuselage wings----$ 325 DELUXE KIT Fiberglass fus balsa wing- $375 INThODUCTORY br radialPRICES engine notflPRICE INCREASES AFTER incladadEEU els 1587 ADD $ 24forNOTE $ISO deposit fullpaymentORDERS SHIPPED AIR MAIL isreqd reserveyour order 6 1986 h.
Edition: Model Aviation - 1987/01
Page Numbers: 72, 73, 74, 75, 166, 167, 168, 169, 170
U el consiruciion wcnniques aiong WlTfl Knowleoge gained prototypes place plane leading edge FAi Speed modeling MANY OF YOU will look over design ask yourselves model airplane ever came look like point asymmetric Control Line model has around since 1940s never gained popularity until discovered much speed gained through use longer inboard wing cover up two control lines used FAI Speed Chuck Schuette current AMA FAd class record holder first utilize asymmetry caught internationally mid-70s two Hungarians took limit wings long five feet outboard asymmetric sidewinder model now known much complicated build conventional AMA-style Speed model else being equal offers three four mph advantage understand FAI Speed mod els have evolved exotic creations today might helpful review brief history event first Canadian national record holder attests just much form follows func tion comes streamlined shape FAI Control Line Speed plane Chris Sackett Control Line Speed World Championships held 1955 Croix de Berny just few miles outside Paris rather loose affair no official team US airplanes very small high wing loading creations typical AMA ships early SOs fuel unlimited line diameter fortwo lines 25mm Jozef Sladky Czech oslovakia won event 1113mph using own engine Editor AMA files show CL Speed World Champs history bit different being 1954 World Championships Hague Netherlands 1954 contest two Speed classes 5cc 25cc Bob Lutker US won 5cc class second attempt World Championships Czechoslovakia 1957 EditorReallyafourth 1956 Speed World Championships Florence Italy team trials held US models proxy flown con testants could agree models never sent until 1960 World Championships staged full US team time 72 Model Aviation specific wing loading requirements still unlimited fuel Monoline accept able although its use protested Italians Ugo Rossi Italy won event actually whipping model narrow ly beat 2nd-place finisher Bill Wisniewski 146 142 mph first time models FAI size 7747 sq minimum used 1962 meeting Kiev straight fuel combination methanol castor oil first introduced Chuck Schuette fathers asymmetric sidewinder designs attended US team member conventional symmetrical mod el flew asymmetric backup ship practice may have Euro peans first sight design sub sequent World Champs kinds asym metric designs turned upeither upright semi-asymmetric true dog leg inboard full asymmetric Californians Chuck Schuette Arnold Nelson Bob Spahr among others used inboard design number European speedsters notably Italians playing outboard layout plan pan inside engine head outside flying concept classes Speed including 10cc class basic design almost universally accepted now competing nations FAI Speed except US team members continue use inboard version prime reasons utilizing outboard setup enable modeler use pure suction fuel feed system pan inside makes room large hard tank inside centerline venturi engine can have richer mix during flightsomewhat like having mild form pressure system simple reliable model becomes airborne quite easily first decided design model borrowed lot ideas came up some own hoping best worlds wanted long inboard asym metric wing outboard fully asymmetric layout model clean could expected slim fuselage enclosed pipe two-piece shell easy main tenance As designing model Jurgen Lenzen West German FAI flier just made available perfect sidewinder speed pan integrated wing stub based final design around pan speed pan available Jurgen Lenzen Alfred-Dobbert Str 57 5600 Wuppertal 2 West Germany Twen ty US dollars will bring right door wing can obtained Sackett Products PO Box 82294 North Burnaby BC V5C 5P7 price $30 US Rossi MK III available Rossi Sales America 1325 Carol Dr Memphis TN 38116 speed pan Take exact dimension front pan leading edge wing set up speed pan carefully stock pan comes root chord too wide leading edge fillet must cut back accom modate 3-in -wide wing dimension leading edge backplate spinner must 3 will have grind inside pan carefully provide clearance Rossi 15 get right location Once satis fied spray some blue layout dye mark holes scribe center punch drill tap 4-40 bolts Make up aug hold pan 900 drilling make sure dont drill through casting must work utmost accuracy sloppiness drilling may give up downthrust engine next step installation spar control system spar formed piece -in aluminum bar stock can found metal shops Type 7075 nice necessary original built piece soft aluminum working just fine Cut piece 25 taper 2 tip Notice necessary spar extend full length material can tapered lathe simply filed hand flat top bottom spar attached pan tapping threading -28 tapping pan use ajig drill press assure accuracy Test-fit spar pan make sure everything lines up square may find necessary use small shims between spar pan order obtain desired location wing aligmnent incidence January1987 73 ne two-piece cowi ne engine nas uniflow ram intaketube sealed tothe cowl rubber grommet Lenzen counterbalance spinner needle valve has shortened facilitate engine removal disturbing flight adjusted setting suction-only fuel feed system has proven very reliable Note position overflow tube tank pressurizing purposes quick-link pushrod connector set root fillet pan 010m wing skin slips over fillet ng fillet can set exact root angle attack Using wing correct twist carve 090-in positive inci dence root pan Wing Making aluminum wings very simple once youve tried think youll agree quickest easiest form wing can make material ALCLAD 2024 T3 thickness 010 Speed fliers find material aircraft surplus stores around airports service work cost outlets quite reasonable sheet 3 x 10 ft will build airplanes Determine grain material first can seen brushed effect material possesses after being rolled mill sure lay out wing grain running leading edge trailing edge Otherwise wing will split being folded Use spray-type layout dye aluminum surface mark pattern carefully scribe Cut wing No 11 X-Acto blade scoring aluminum skin three four times necessary cut right through material will break off very cleanly bent slightly achieve airfoil section must first bend material flat sheet metal brake Failing can clamp between two pieces 2-in angle iron clamped large vise use third piece straight angle iron bend 900 Remove vise carefully bend flat workbench using couple planks -in plywood Try flatten fold around 6 nice sharp leading edge Open up 30 using couple pieces sheet metal making sure straight true ______ 5/3 STABILIZER DIHEDRAL SKID 7-34 TA ILS K ID 7K51/2 21/4C - STAB 3/1K SO HARDWOOD-C VI HARY BALSA STAB STIFFEN BY RUBBING K B POLYESTER INTO GRAIN COVER WITH 2 07 FIBERGLASS CLOTH P2 ROSSII OR TUNED PIPE --4 \ 047 COWL ALIGNMENT PINS -lFi S-D2 TIE-DOWN BOLTS L/IK PLY TANKI SHIELDCIi II 1W ROSSI IS MK III I ENGINE L i 1 REMOVABLE COWL I CARVED FROM BISS BLOCK 1-1/21-1/4 9CUSTC*4 2BO AWM VENTURI L4 ALUM TUBE /1HEASPIPE COOLER OZUS I/B COOLING SLOT SIDE VIEW DSK CF PROPELLER 0I2345B Rough up inside bonding surface wing ooarse sandpaper bond Goodyear Pliobond Clamp wing between two pieces 1-in angle iron good-sized vise Align carefully until get desired airfoil section slight washin effect Clamp last /16 trailing edge get true symmetrical airfoil no polywog Clamp full length wing small C-clamps spaced 6 bake 3500 oven hour half An alternate method ofbondingthewingistouse 3M 2216 gray epoxy clamp same manner Use little possible weight will build up quickly Belicrank Cut out bellcrank piece 030 CRS shown draw ing sure bush holes brass tubing Cut slot boss provided Lenzen pan accept bellcrank crank anchored 4-40 flathead Allen screw tapped pan make smooth bearing surface bellcrank run some solder approximately 080-in over threads come contact bushing 74 Model Aviation authors Rossi features modified needle valve custom-shaped 265-in alumi num venturi custom speed pan available Jurgen Lenzen West Germany bellcrank resides beneath fuel tank Two mounting studs hold tank place Full-Size Plans Available. See Page 180 FRONT VIEW 5-56 1/4 BUTTONHEAD WING RET SCREWS S8 oR~LDRAM-FILL T VIEW RAME- 43/IS A FR I/G HITH METALkILW I/R4I4V8 TOP VIEWSIDE VIEW FUEL TANK DETAIL BUILD FROM 006 TIN FILE IN TOOMODIFIED SCREWORIVER NOED FLAT 070 CUT EEDLETOI070 SLOT NEEDLE VALVE MOOS S/IA BIL SILVER SOLDER TOOl-WOO RUTS-I FOI9MED -S/4 oS/B L52 BRASS PUSHMOD SUITES ITYPI 3D OCOCK LINK SASS EM BLY 0235 CLIP ASSY PRATHER 4OBO C/IA PLYNDOO TAKF-OF flOLLY Ho-oH SIDE VIEW FUEL4-40 BELLCRANI BOLT FU00ROO SHIELDTAP 1004 v4-2BLOCATION PORTIONBELLCRANK 030 CRSD -D 6-32 TANK MCUNTING STUD -1/10 PLYWOFIU E -E N 0 GJBAO TA IWO EEL 10-S/A---COVER ALL WIRE IN CONTACT MED SIZE__SILICONE TURING SCALE I/S SIZE II/R MUSIC WIRE N-I/A TO MODELWIRE 01-1/2SAAPE FRONT B REAO 3/30 TAILTRAFCRACCES TO SUIT MOSEL WIRE ____2-3/4 OUBRO S/I/U SOLDER WASHERS ROTH SIDES FRONT VIEW F-IF-2010 2024 ALUM WIND PANEL 1 TANK MOUNT_________AVAIL FROM SACKETT PRODUCTS SSBOO 02294 BURNOOT BC CANADA VSC -SF7 PANEL DIM 3s 3/4o ST-I/B LA Do5/4 VASS MONOLINE 30K UP BUTTONS TOP VIEW SPAR FORMED FROM 3/B -6061 TO ROUND STOCK THREADED TO PAN LEADOUT GUIDES FROM FLATTENED I/H BRASS TUBE SIDEWINOER PAN AVAILABLE 3URGEN LENZEN ALFRED-TOBBERT 575600 WUPPERTAL 2 W GERMANY 1/16 PLY PIPE/TANK SHIELD N SLEEVES GASS TUBING - A-A ______________ CUT BACK WING FILLET TO ACHIEVE CMENSION U-S/A 025 3/0 __ -045 II-236 WITSIF 035 DIAz-F-F TAILS KID REPLACEABE 078VOW OF PAN SlIOSRISO POSITIVE WIRE SKIDREID GMENSIONS-WINN 0 ROILT MODEL AVIATION EAI C/L SPEED WIND SPAN37DESIGNED B DRAWN BT WING AREA 716950 INCHRIS SACKETT STAB AREA2BBBSO INTRACING BY LENGTH19JOE DEMARCO WEIGHT20 TO21 OZ CANADIAN NATiONAL RECORD HOLDEI9 Cut out exit holes pan wing fillet area control lines lines attached using small Monoline buttons hooked up 047-in lead-outs see drawing Finally drill tap two 632 holes tank mount Finish shaping pan externally until get exact shape want lap engine mount surface some emery paper oil plate sheet glass Square mating surfaces true up much models favorable flying char acteristics will depend upon alignment entire model based around basswood crutch great care should taken get stab mount ing surface square thrust line Start laying out centerline both sides Ys-in crutch work solely reference line Beginning square edge locate cut stab mount area should sit 70 dihedral angle h-in below centerline crutch Its easier keep everything aligned work table saw can cut hand youre accurate Lay pan crutch centering Continued page 166 January 1987 75 variety slnglebiade carbon fiber props Lenzen counterweights Props ob tained varlousspeciaiity manufacturers theones range pitchfrom 54to59 Bought Colored Fuel Line YOU DEFINITELY PAID TOO MUCH Pay Fancy Colors ON ENGINE DETERMINES REQUIRED TUBING DIAMETER EXTRA LARGE 125 iD 250 001 SH-616 2FTPKG $135 SII-661 2$ FT ROLL $1325 LARGE 093 10- 215 GD SH-2901 FT PEG$ 89 SH-646 2 FT PKG 111$ SN-291 2$ FT ROLL $1295 MEDIUM 062 ID- 156 ODl 54-2851 FT PKG$ 90 SH-545 2 FT PKG $110 SN 28925FT ROLL. $1195 FUEL FITTING SIZE * Heat-Proof will melt resting dIrectly hotteSt part running model engine Wont Harden Fuelil'~ 9111 Resistant Cuts TearsNOT FOR GASOLINE Sig first introduce silicone fuel line tubing model aviation market way back 1964 premium tubing still comes its original natural white color Some competitors would have believe ad ding blue red yellow dye tubing charging higher price makes product better dont believe Sigs original silicone fuel tubing has important characteristics need quality fuel line None Better Any Price OR COLOR See dealer first available order direct Call 800-247-5003 toll free orders Latest Catalog $300 SIG MANUFACTURING CO INCMontezuma IA 50171 Say8 th8t old TinierjtGI st 550115 Gte1W$OflFrom this. peEt VtUQ. 1-eES TaOtS Mole 4 Ignition Engine Parts Only Over 600 items Send $200 current catalog performances Championships showed aeromodeling sport can unite competitors countries no matter good individual may perform love talking about model airplanes should also remembered dont go wont learn learning essential part improv ing performance contestants finished following order best speed kilometers per hour listed 1 Kalmikov USSR29363 2 Piskalev USSR28800 3 Mult Hungary 287534 Dodge USA28639 5 Choj nacki Poland28639 6 Szegadi Hungary 285267 KohaniukUSSR28191 8 Molnar Hungary28059 9 Rachwal Po land27993 10 Schuette USA27734 11 Novakowski Poland27522 12 Ding PRC27231 13 Zhu PRC27231 14 HalmanUK27 149 15 LiPRC 27027 16 Assen Bulgaria26905 17 Kabakov Bulgaria26745 18 Kales Yugo slavia26548 19 Bianchi Brazil26 181 20 Matilainin Finland25714 21 Schmidt FRG25622 22 Hrustanovic Yugo slavia255 34 23 Hiern Australia25495 24 Rosenhan FRG25263 25 Magne France25 174 26 Brewin UK25 122 27 Bilat Switzerland24879 28 Borovac Yugoslavia2481O 29 Borer Switzerland 2474230 Bontcev Bulgaria24590 31 Metkemeyer Netherlands245 2332 New ton USA24406 33 McGalddery UK 2435734 Bertin Brazil24324 35 Fall gren Sweden24096 36 Christen Switzer land23952 37 Rietbergen Netherlands 23952 38 Kjelberg Sweden23809 39 Valo Finland23560 40 Wake Australia Great Planes Big Stiks offer quality ease r assembly superior flighf characteristics never before available stik style models Features include notched interlocking die machine-cut balsa plywood parts fast accurate construc tion hardware Additional hardware included either tricycle talidragger configuration Three versions available 53 span 20 size 59 span 40 size 60 size require 4-channel radio Available al KATPIAftIIi Leading Dealers ~JELE Nalionwide P0 5ov721 U va IL 61801- 23047 41 Fagerstrom Finland22929 42 Hanting Australia22332 43 Pinho Brazil0 Thanks once again David Brewin member UK Speed team report Gene Hempel 301 N Yale Dr Garland TX 75042 CL Racing/Ballard Continued page 70 fiberglass/epoxy prop means epoxy curing agent mixture improper prop should sent back manufacturer refund/replacement addition inspec tion fiberglass strands blade shows minimum amount strands hub area prop will certalnly prone shrinking under heat pressure high-winding Rat engine end flying day always take props Ive used inspect front strong light see internal cracks alr bubbles may produce crack subsequent failure also look hairline cracks around bubbles locked epoxy could lead blade failure As always solicit comments ideas photos John C Ballard 10102 Kimblewick Dr Louisville KY 40223 responding advertisers mention read about ModelAviation Wi Idf ref Sackett Continued page 75 carefully taCk-glue position using few drops cyanoacrylate CyA Draw outline fuselage rough-cut toshapeNexttakeapieceoflx lx 10-in medium balsa tack-glue position tailpiece outer shape fuselage can sanded final shape leaving area re movable cowl unfinished Break assembly apart clean pan mount enginetaping up openings keep dust dirt out until shaping work completed Locate four tie-down holes drill out little oversize accommodate brass tubing glue tubes place slowdrying epoxy such Hobbypoxy 2 ensure accuracy wax tie-down bolts insert position gluing tubes Use elastic bands hold pan crutch position Let whole thing dry least 24 hours Take assembly apart use coping saw cut out center crutch outline shown drawing Decide whether wish enclose engine lugs completely fuselage cut around suggest enclose engine completely tends weaken crutch severely otherwise slight amount material will have removed lugs Rossi 15 accomplish Cut lugs back ~ia inside pan leaving enough material crutch adequate strength cowl formed blank straight-grained basswcod prefer wood cowl over fiberglass lay-up better vibration-damping strength Start cutting out engine hole diameter Ys6 larger head Use circle cutter rough-clearance inside allow cowl accept engine Rough-shape outside approximately er around shown drawing tack-glue crutch blend rest fuselage Break apart install pipe clearance inside ap proximate thickness Y32 in pipe area front should solid 166 Model Aviation FIBERGLASS COWLS 70 cowls eelpants Sig Pica Top-Flue Jesce Nosen PIlot Stafford Radials Bebrens Garmhausen W E Tech other kits plans One-piece laminated construction handlaid fiberglass strong lightweight Send SASE price list please inclpde names models interested parts br call between 9AM o PM EOT informatIon COO ordering hope hear veul FIBERGLASS 703 890-6017 iI1lept~tii Ba 530 Geodview VA 24895 possible Shape sand cooling slot venturi opening As may have noticed needle valve exits right cowlcrutch parting line So remove needle valve disassembling model needle shortened modified will covered later Stabilizer quite important build light yet very rigid stab assembly order get center gravity CG correct Select piece stiff medium-hard %6-in balsa cut shape stiffen i/u-in sq spruce hardwood Use slow-drying CyA Sand perfect symmetrical sec tion cut out elevator area elevator used original all-metal type built correctly will resist failure vibration fatigue Simply solder up frame shown plan use Sta-Brite fold over 010-in aluminum skin Cement place 3M 2216 epoxy control horn cut bit 0 30in CRS bushed 055-in pushrod Check sure height horn axle pushrod exactly /6 model may too sensitive Carefully attach elevator stab gluing i/n-in tubing ends axle slow-drying Hobbypoxy 2 sure dont glue down elevator wax areas Chapstick glue needed dry sand smooth stiffen stab couple coats thinned K&B polyester resin rubbed grain cloth Three thin coats should fine Further stiffen stab covering 2oz fiberglass cloth resin dry sand off lumps finish two coats clear resin Test-fit stab fuselage Hollow out enough material crutch allow control system work smoothly hollow tailpiece thickness rod must installed elevator attaching stab crutch Coat control areas Chapstick glue place pusbrod two-piece affair allow disassembly ship back half cut approximate length can now install two /16 ply formers two i/n x pushrod guides As shown draw ing pushrod runs close inner edge fuselage Bolt whole assembly together hand-fit pushrod its proper position Fine adjustments can made resoldering quick-links along pushrod adjusting threads Before gluing tailpiece good idea fuel-proof tail section few coats clear epoxy dry check smoothness operation system must precise little no play otherwise flying becomes erratic high speeds sloppiness fix now Carve sand pipe area like get nice smooth seat float pipe attached englne head pipe somewhat floats fuselage use two small 031-in wire hooks attached head pipe around front engine small spring way mount tuned pipe avoid bending breakage Test-fit /16-in tank shield ad justing come close possible pipe touching necessary because youll need room can get tank adjustment satisfied glue place tank shield important prevents fuel becoming heated during flight Install 055-in skids stab fuselage keep pan good alignment during hard wear tear ships receive glue four alignment tabs made /u ply Put two very front pan two rear make perfect fit like actually mold mixing up filler epoxy glue finely-chopped fiberglass cloth dabbing over tabs waxing pan can now put crutch-pan assembly together tie-down bolts dry will break apart perfect-fitting pan no play cowl mounted ship Prather DZUS clip 047-in wire hooked crutch Finish have found K&B Super poxy system works best providing tough durable fuel-proof finish begin treat bare wood surfaces reball RIC Idle-Bar Glow Plugs Long Short$1 89 Also. Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal $149 Only Swanson Associates PO Box 151 S,x 1948 Wayne NJ 07470 Remember 40 Wing 15 25 Engines Dealers ributors Welcomed Phone 703 273 9593 FLYLINE MODELS INC PO Sex 2136 Fairfax VIrgInia 22031 U 5 January 1987 167 ~----- YS Engines Parts Atlanta Kits Challenge IV Kits Hattori Pipes / Headers FAT RC Pattern Specialties PO Box 388914-248-8603 Lincoindale NY 10540 4 Classic R/C Scale TI4 SGRAT LAKES CORPORATION St tsA g0245 SANDER ADJUSTABLE TENSION HAND RFLT cAlibER MINI-STRIPSPRECISION DIE-CUT Medium Garnet SAVES TIMEREPLACEMENTFinn Garnet AND EFFORT 8165 SANDING BELTSAsstd Water Print TEE e BAR ALUMINUM EXTRUSION SANDING BLOCK tar use RUFF-STUFF Sell adhesIve sand paper Large True Surface Wee tWearOut 11 Inch 8251 Handy Use 22 Inch 8375 RUFF F ELF ADHESIVE SHEET MAKE SAN OMPER YOUR OWN SPECIAL SANDING SHAPES Easy Use Medleer Fine r Pine $39 Ho glee er drying MINIisAw $79 COMPACT 10 inch HACK SAW SAWS ANYTHING ANYWHERE Saw has rugged die-cast frame corntprtable chip-pruet plastic seal handle RecedIng nun sad ad testable B bled gives good work access Cats wood plestic metal HARDENED MUSIC WIRE extra hlades-SI$199 Add 20% postage Send 25 cotlog three coats K&B polyester sur facing resin thinned about 50-50 Spray couple coats K&B primer sand smooth spray favorite color thinned 200% get really smooth shiny look have spray very fine coats wet look really quite simple little practice can achieve out standing results Fuel system fuel system com monly used worldwide simple pure suction method Most other forms fuel delivery have inherent inconsisten cies inconsistency last thing need models fly tremendous speeds tank shown drawing must no wider /i Otherwise weight fuel centrifugal force will make difficult get engine lean enough optimum setting tubing h-in brass should cover pickup tube tank fine screen prevent air bubbles entering fuel line tank must float mounting studs totally free metal-to-metal contact pan achieve running large-size soft sili cone tubing inside 5/su-in brass tube mounting brackets using small rubber groinmets caps ends tank located adjusted using 632 aircraft nuts washers mount ing studs Make sure use grommet fill line passes through pan venturi diameter will probably determined individual model should try run large opemng possible still have enough fuel draw get off ground Start out stock Rossi unit enlarge around 280 like can increase performance adding air-collecting funnel exist ing venturi help supercharge mix enters crankcase can achieved gluing piece aluminum tubing existing venturi flange epoxy machining out bar stock Engine Wildfire built around Rossi Mark Ill engine good racing 15 will work OPS 15 good choice Cox K&B engines will fit spacious Leazen pan just fine Start rework carefully disas sembling engine inspecting parts remove bearings heat oven 300 lightly tap case bearings will fall out freely Remove casting steps main bypass areas crankcase Dremel tool polish Rossi pretty good engine out box rework should need case latest Rossi pipe-timed engines coming through revised crank liner timing figures crank should open 350 after bottom dead center close 650 after top dead center Crank work starts boring out inside diameter about 300 Radius internal areas fuel flow FLYING SCALE MODEL RIC PLANS Super Detail e Photos Instruction Sheets _ h Plans 19163 Shadowood Dr Send SASE foe listMonument CA 80132 * SCALE DOCUMENTATION * SCALE DRAWINGS MODEL PLANS PHOTOS BOOKS EPLA-TECI-I AIRPLANE CATALOGINTERNATIONAL ova ioo PAGES48500 MC KENZIE HWY S3OOVIDA OREGON 97488 Vacation 5C W0305D Handy Dissey World Kennedy Space Cester sod rent Florida 3 Bedrooms sleeps 8 Kitchen A/C Pool Tennis sod lots li/C flying Nov-May 5500 wk / June-Oct 0450 wE / sightly monthly rates also available R17 5284045 sheen w/accessorses UTNES $2795 Up PeeciStOfi Tools Book Metale StOO Cubing CAVPIELL FGLS CG 210CM SeIne Rd BpnlngflehdOtrlo 48506 513-322-5562 Mae eG MAoeees ew MOP SIIPPLID 5 For Avwson Models ANDINC III 100 W 20525I M eosd, Nan C,oOogs 01304-562 3030p j SeOfr ,,Oerfordn odqoOk,nla& o1 Ito BOX 42B5PTLANU N C28776 CARBON MAT SAMPLE 2 OR 5 OZ/SQ YD SEND $100 EACH TO AEROSPACE COMPOSITE PRODUCTS PO Box 16621 Ervine CA 92714 PSAW DIESELS Englands Finest 049 35 RJC STD Send $100 list Eric Cluttoni 913 Cedar Lane Tullahoma Tenn 37388 Ia SandSSAEoar complete ito 168 Model Aviation ERSR Padded flats curves Handy Hold Easy Us OUALITY FREE FLIGHT KITS AND SUPPLIES FOR COMPETITION AND SPORT SINCE 1975 Duster inquiriesCatalog 500 invited BLUE RIDGE MODELS. [DCO SKY DEVIL 65 Ignttnon Approxed 90 Day Warraistv - Twin Ball Bearing Crank Americas finest old-timer engine Originally designed Hassad & Havlik replica engine resonic tuning ensures continuous flow power through speed range Look out green one$ goodbye red headT&Ds replica Sky Devil 65 $279 less coil cond & plug alit lesldents add 6% sales tax ORDER DIRECT T&D RESEARCH AssoclArEs 6371 El Cajon Blvd Suite 115 San Diego CA 92115 SI FOR BROCHURE well opening counterweight area shown drawing help atom ize incoming fuel charge carefully cut eight grooves around crank hole back good idea cover crank pin small piece brass tubing protect grinding latest Rossi Mark III engines pipe-timed variety using ABC piston liner sets timing figures 1270 transfer timing 1940 exhaust ideally suited high rpm small prop alcohol-burning models FAI Speed type need to liner smooth out corners transfer boost ports little better fuel flow piston liner assemblies set up very close optimum fits right out box should no need lapping refitting connecting rod can streamlined symmetrical section improve fuel flow should done small jewelers file set using rounded files corners Finish up No 320 paper polish out ensure have good leak-proof seal between liner glowhead first lap liner top flange piece No 400 paper glass remove machine scores take old glowhead lap two together mild-cut polish achieve perfect fit Thoroughly clean parts before reassemble Its good idea scrub parts toothbrush methanol follow ultrasonic cleaner have case should clean free lint Warm up case drop bearings crank Put prop tighten up seat bearings let cool slowly test spin crank should spin freely six seven seconds come stop TDC top dead center binding occurs warm case again tap lightly small wooden block will seat bearings properly new Rossis really precise engines should experience no difficulty step Assemble rod wrist pin piston liner engine dry turn over check binds roughness go engine should feel extremely free except approximately 040 TDC liner taper cinches piston set up head clearance mark deck height TDC compare depth plugs using various shims try achieve head clearance 022 024 start withor maybe little Later flying can play dimension attain maxi mum power particular combina tion backplate used stock comes although some guys have success shimming out 040 050 aluminum spacer engine needs very little break inmaybe 10 15 minutes fast four-cycle hops Bolt 7-3V2 prop cut 6-in diameter run fast rich no pipe first 10 minutes needle holds steady try few peak runs check rpm tachometer should read figure around 27000 maybe 28000 good engine Attach Rossi No 2 pipe bring up peak take reading rpm figure should around 34000 35000 An engine will turn rpm good high 1 60s right prop An engine tachs 33000 will fly FAI ships around 158 mphvery competitive what Rossis will turn right out box wish can pass up engine modifications initial flights get feel airplane modifications later can note difference Propeller Single-blade carbon fiber some cases hardwood props have accepted standard FM Speed flying since found way go fast alcohol through high rpm number companies produce props different styles pitches Try 62-in di ameter 54 5-in pitch best results Mark III Rossi Jurgen Lenzen has copies famous world-record-holding Hungarian desigus well number own prices very reasonable about $5 Props also available Walt Perkins Bill Hughes myself Dolly Construct dolly shown note too asymmetric help balance model dolly January 1987 169 -uriumaflCe System Tar iuP PERFORMANCE K&B ENGINES AirplaneManne K&B FUELSK&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER P0KV RESIN K&B SUPER P0KV THINNER K&B SUPER P0KV PRIMER K&B SUPER FOXY PAINT K&B MIXING CUPS __ ADVANTAGE HORNET Strap yourself Americas first digital fighter Follow Hornet through design testing Come board aircraft carrier qualification weapons testing US Navy USMC Allied squadron training deployment Get Hornet handlers view cockpit move sky around See two types fighter pilots. fly Hornets wish didl! Video Running Time 45 Minutes Specify Beta VHS Send Cheque Money Order To GareexProductlonsOept T 460 Grandview Ave London Ont N6K 2T5 us canada add 5350 shp 5 non Oni Oesdenls add lOb POT $499 Inclode Visa o MC# nook den tlCa5on C Eopi5 Oaie Allow 23 weeks delivery SHIPPED DUTY FREE INTO USA ensure good tracking line tension dur ing critical takeoff period Take time build very true straight unit solder joints pre-soldered wrapped fine brass wire soldered Sta-Brite equivalent high-tempera ture solder making dolly sure slip some silicone tubing over areas come contact airplane before final assembly Flying Check model carefully make sure everything solid operating 100% two lines should double looped prevent chance ends opening up causing disaster Two-line models quite safe Monoline AMA models use very large wire diameters easy maintain safetys sake always inspect lines before flying kinks other signs wear begin approximate needle valve setting strap standard bench test prop fill tank fire up engine After slight warm-up period engine will hit pipe dramatically Adjust needle full-peak run slightly rich side shut off engine placing thumb over back pipe open needle another one-quarter turn bolt flying prop Youll ready first flight make fuel system work correctly must first understand tank position sets needle flight adjustment should make needle get setting necessary become airborne Fire up engine let warm up about 10 seconds raise nose slightly lean out pre-stage pipe Once engine picks up lower stage pipe will have enough power launch Hold elevator neutral until sufficient speed attained lift out dolly usually one-half three-quarters lap release model engine floods out rich flight move tank outboard slightly about 0/is try again until steady full-peaked run achieved engine runs lean hitting pipe off move tank inboard slightly go again small amount Wind Direction Anytime Anywhere B FLYMj SOCK 5 inches plus tails Attaches antenna mast Iclips includedi Available frequency colors IGive frequency number orderl $95 plus5&H66jj ForaignordersaddS&H$150 Calif Residents add 6% tax Jeffla Products PO Bex 484 Lake EIsInore CA 92330 fine tuning like will find optimum setting very easy come should very consistent FAT Speed tremendous challenge Just coming up good-flying airplane reliable fuel system half battle Wildfire solid good-flying ship allows concentrate other es sentials such engine propeller build model carefully follow directions shouldnt hard become competitive eventually join world class competition Give try Speed equipment suppliers/information North American Speed Society PO Box 82294 Burnaby BC V5C 5P7 Canada Topflight detailed information phases CL Speed flying Quarterly publication $1 5/year Ed Chris Sackett Jurgen Lenzen Alfred Dobbert Str 57 5600 Wuppertal 2 West Germany Speed pan Wildfire Speed model FAT single-blade props metric-size lines Sackett Products PO Box 82294 Burna BC V5C 5P7 Canada Aluminum wing panels carbon fiber props Rossi Sales America 1325 Carol Dr Memphis TN 38116 Rossi 15 MK III engines Rossi 15 tuned pipes glowheads Shadow Racing 1100 SE 28th St Ocala FL 32670 FAT single-blade propellers carbon fiber special prop-making epoxy Kelly Props PO Box 38 Western Springs IL 60558 sizes FAT single-blade props glass graphite Mall Show/Nunes Continued page 77 Ask manager tables barriers tablecloths etc available use display mall location provides materials set up take down finished mall area does provide items mentioned will have take steps locate secure items 170 Model Aviation SWEITZER ENTERPRISES KI CATALOGS PO BOX 834HILLSBORO OR 97123 PLANS----52OO RESEARcH cENTER--$250 3-VIEwS PHOTOS & MANUALS PHONE 503640-5102 i/4 SCALFOPT22 Kits WINGSPAN 901/4 GINEBASIC KIT 2- 8 Balsa fuselage wings----$ 325 DELUXE KIT Fiberglass fus balsa wing- $375 INThODUCTORY br radialPRICES engine notflPRICE INCREASES AFTER incladadEEU els 1587 ADD $ 24forNOTE $ISO deposit fullpaymentORDERS SHIPPED AIR MAIL isreqd reserveyour order 6 1986 h.
Edition: Model Aviation - 1987/01
Page Numbers: 72, 73, 74, 75, 166, 167, 168, 169, 170
U el consiruciion wcnniques aiong WlTfl Knowleoge gained prototypes place plane leading edge FAi Speed modeling MANY OF YOU will look over design ask yourselves model airplane ever came look like point asymmetric Control Line model has around since 1940s never gained popularity until discovered much speed gained through use longer inboard wing cover up two control lines used FAI Speed Chuck Schuette current AMA FAd class record holder first utilize asymmetry caught internationally mid-70s two Hungarians took limit wings long five feet outboard asymmetric sidewinder model now known much complicated build conventional AMA-style Speed model else being equal offers three four mph advantage understand FAI Speed mod els have evolved exotic creations today might helpful review brief history event first Canadian national record holder attests just much form follows func tion comes streamlined shape FAI Control Line Speed plane Chris Sackett Control Line Speed World Championships held 1955 Croix de Berny just few miles outside Paris rather loose affair no official team US airplanes very small high wing loading creations typical AMA ships early SOs fuel unlimited line diameter fortwo lines 25mm Jozef Sladky Czech oslovakia won event 1113mph using own engine Editor AMA files show CL Speed World Champs history bit different being 1954 World Championships Hague Netherlands 1954 contest two Speed classes 5cc 25cc Bob Lutker US won 5cc class second attempt World Championships Czechoslovakia 1957 EditorReallyafourth 1956 Speed World Championships Florence Italy team trials held US models proxy flown con testants could agree models never sent until 1960 World Championships staged full US team time 72 Model Aviation specific wing loading requirements still unlimited fuel Monoline accept able although its use protested Italians Ugo Rossi Italy won event actually whipping model narrow ly beat 2nd-place finisher Bill Wisniewski 146 142 mph first time models FAI size 7747 sq minimum used 1962 meeting Kiev straight fuel combination methanol castor oil first introduced Chuck Schuette fathers asymmetric sidewinder designs attended US team member conventional symmetrical mod el flew asymmetric backup ship practice may have Euro peans first sight design sub sequent World Champs kinds asym metric designs turned upeither upright semi-asymmetric true dog leg inboard full asymmetric Californians Chuck Schuette Arnold Nelson Bob Spahr among others used inboard design number European speedsters notably Italians playing outboard layout plan pan inside engine head outside flying concept classes Speed including 10cc class basic design almost universally accepted now competing nations FAI Speed except US team members continue use inboard version prime reasons utilizing outboard setup enable modeler use pure suction fuel feed system pan inside makes room large hard tank inside centerline venturi engine can have richer mix during flightsomewhat like having mild form pressure system simple reliable model becomes airborne quite easily first decided design model borrowed lot ideas came up some own hoping best worlds wanted long inboard asym metric wing outboard fully asymmetric layout model clean could expected slim fuselage enclosed pipe two-piece shell easy main tenance As designing model Jurgen Lenzen West German FAI flier just made available perfect sidewinder speed pan integrated wing stub based final design around pan speed pan available Jurgen Lenzen Alfred-Dobbert Str 57 5600 Wuppertal 2 West Germany Twen ty US dollars will bring right door wing can obtained Sackett Products PO Box 82294 North Burnaby BC V5C 5P7 price $30 US Rossi MK III available Rossi Sales America 1325 Carol Dr Memphis TN 38116 speed pan Take exact dimension front pan leading edge wing set up speed pan carefully stock pan comes root chord too wide leading edge fillet must cut back accom modate 3-in -wide wing dimension leading edge backplate spinner must 3 will have grind inside pan carefully provide clearance Rossi 15 get right location Once satis fied spray some blue layout dye mark holes scribe center punch drill tap 4-40 bolts Make up aug hold pan 900 drilling make sure dont drill through casting must work utmost accuracy sloppiness drilling may give up downthrust engine next step installation spar control system spar formed piece -in aluminum bar stock can found metal shops Type 7075 nice necessary original built piece soft aluminum working just fine Cut piece 25 taper 2 tip Notice necessary spar extend full length material can tapered lathe simply filed hand flat top bottom spar attached pan tapping threading -28 tapping pan use ajig drill press assure accuracy Test-fit spar pan make sure everything lines up square may find necessary use small shims between spar pan order obtain desired location wing aligmnent incidence January1987 73 ne two-piece cowi ne engine nas uniflow ram intaketube sealed tothe cowl rubber grommet Lenzen counterbalance spinner needle valve has shortened facilitate engine removal disturbing flight adjusted setting suction-only fuel feed system has proven very reliable Note position overflow tube tank pressurizing purposes quick-link pushrod connector set root fillet pan 010m wing skin slips over fillet ng fillet can set exact root angle attack Using wing correct twist carve 090-in positive inci dence root pan Wing Making aluminum wings very simple once youve tried think youll agree quickest easiest form wing can make material ALCLAD 2024 T3 thickness 010 Speed fliers find material aircraft surplus stores around airports service work cost outlets quite reasonable sheet 3 x 10 ft will build airplanes Determine grain material first can seen brushed effect material possesses after being rolled mill sure lay out wing grain running leading edge trailing edge Otherwise wing will split being folded Use spray-type layout dye aluminum surface mark pattern carefully scribe Cut wing No 11 X-Acto blade scoring aluminum skin three four times necessary cut right through material will break off very cleanly bent slightly achieve airfoil section must first bend material flat sheet metal brake Failing can clamp between two pieces 2-in angle iron clamped large vise use third piece straight angle iron bend 900 Remove vise carefully bend flat workbench using couple planks -in plywood Try flatten fold around 6 nice sharp leading edge Open up 30 using couple pieces sheet metal making sure straight true ______ 5/3 STABILIZER DIHEDRAL SKID 7-34 TA ILS K ID 7K51/2 21/4C - STAB 3/1K SO HARDWOOD-C VI HARY BALSA STAB STIFFEN BY RUBBING K B POLYESTER INTO GRAIN COVER WITH 2 07 FIBERGLASS CLOTH P2 ROSSII OR TUNED PIPE --4 \ 047 COWL ALIGNMENT PINS -lFi S-D2 TIE-DOWN BOLTS L/IK PLY TANKI SHIELDCIi II 1W ROSSI IS MK III I ENGINE L i 1 REMOVABLE COWL I CARVED FROM BISS BLOCK 1-1/21-1/4 9CUSTC*4 2BO AWM VENTURI L4 ALUM TUBE /1HEASPIPE COOLER OZUS I/B COOLING SLOT SIDE VIEW DSK CF PROPELLER 0I2345B Rough up inside bonding surface wing ooarse sandpaper bond Goodyear Pliobond Clamp wing between two pieces 1-in angle iron good-sized vise Align carefully until get desired airfoil section slight washin effect Clamp last /16 trailing edge get true symmetrical airfoil no polywog Clamp full length wing small C-clamps spaced 6 bake 3500 oven hour half An alternate method ofbondingthewingistouse 3M 2216 gray epoxy clamp same manner Use little possible weight will build up quickly Belicrank Cut out bellcrank piece 030 CRS shown draw ing sure bush holes brass tubing Cut slot boss provided Lenzen pan accept bellcrank crank anchored 4-40 flathead Allen screw tapped pan make smooth bearing surface bellcrank run some solder approximately 080-in over threads come contact bushing 74 Model Aviation authors Rossi features modified needle valve custom-shaped 265-in alumi num venturi custom speed pan available Jurgen Lenzen West Germany bellcrank resides beneath fuel tank Two mounting studs hold tank place Full-Size Plans Available. See Page 180 FRONT VIEW 5-56 1/4 BUTTONHEAD WING RET SCREWS S8 oR~LDRAM-FILL T VIEW RAME- 43/IS A FR I/G HITH METALkILW I/R4I4V8 TOP VIEWSIDE VIEW FUEL TANK DETAIL BUILD FROM 006 TIN FILE IN TOOMODIFIED SCREWORIVER NOED FLAT 070 CUT EEDLETOI070 SLOT NEEDLE VALVE MOOS S/IA BIL SILVER SOLDER TOOl-WOO RUTS-I FOI9MED -S/4 oS/B L52 BRASS PUSHMOD SUITES ITYPI 3D OCOCK LINK SASS EM BLY 0235 CLIP ASSY PRATHER 4OBO C/IA PLYNDOO TAKF-OF flOLLY Ho-oH SIDE VIEW FUEL4-40 BELLCRANI BOLT FU00ROO SHIELDTAP 1004 v4-2BLOCATION PORTIONBELLCRANK 030 CRSD -D 6-32 TANK MCUNTING STUD -1/10 PLYWOFIU E -E N 0 GJBAO TA IWO EEL 10-S/A---COVER ALL WIRE IN CONTACT MED SIZE__SILICONE TURING SCALE I/S SIZE II/R MUSIC WIRE N-I/A TO MODELWIRE 01-1/2SAAPE FRONT B REAO 3/30 TAILTRAFCRACCES TO SUIT MOSEL WIRE ____2-3/4 OUBRO S/I/U SOLDER WASHERS ROTH SIDES FRONT VIEW F-IF-2010 2024 ALUM WIND PANEL 1 TANK MOUNT_________AVAIL FROM SACKETT PRODUCTS SSBOO 02294 BURNOOT BC CANADA VSC -SF7 PANEL DIM 3s 3/4o ST-I/B LA Do5/4 VASS MONOLINE 30K UP BUTTONS TOP VIEW SPAR FORMED FROM 3/B -6061 TO ROUND STOCK THREADED TO PAN LEADOUT GUIDES FROM FLATTENED I/H BRASS TUBE SIDEWINOER PAN AVAILABLE 3URGEN LENZEN ALFRED-TOBBERT 575600 WUPPERTAL 2 W GERMANY 1/16 PLY PIPE/TANK SHIELD N SLEEVES GASS TUBING - A-A ______________ CUT BACK WING FILLET TO ACHIEVE CMENSION U-S/A 025 3/0 __ -045 II-236 WITSIF 035 DIAz-F-F TAILS KID REPLACEABE 078VOW OF PAN SlIOSRISO POSITIVE WIRE SKIDREID GMENSIONS-WINN 0 ROILT MODEL AVIATION EAI C/L SPEED WIND SPAN37DESIGNED B DRAWN BT WING AREA 716950 INCHRIS SACKETT STAB AREA2BBBSO INTRACING BY LENGTH19JOE DEMARCO WEIGHT20 TO21 OZ CANADIAN NATiONAL RECORD HOLDEI9 Cut out exit holes pan wing fillet area control lines lines attached using small Monoline buttons hooked up 047-in lead-outs see drawing Finally drill tap two 632 holes tank mount Finish shaping pan externally until get exact shape want lap engine mount surface some emery paper oil plate sheet glass Square mating surfaces true up much models favorable flying char acteristics will depend upon alignment entire model based around basswood crutch great care should taken get stab mount ing surface square thrust line Start laying out centerline both sides Ys-in crutch work solely reference line Beginning square edge locate cut stab mount area should sit 70 dihedral angle h-in below centerline crutch Its easier keep everything aligned work table saw can cut hand youre accurate Lay pan crutch centering Continued page 166 January 1987 75 variety slnglebiade carbon fiber props Lenzen counterweights Props ob tained varlousspeciaiity manufacturers theones range pitchfrom 54to59 Bought Colored Fuel Line YOU DEFINITELY PAID TOO MUCH Pay Fancy Colors ON ENGINE DETERMINES REQUIRED TUBING DIAMETER EXTRA LARGE 125 iD 250 001 SH-616 2FTPKG $135 SII-661 2$ FT ROLL $1325 LARGE 093 10- 215 GD SH-2901 FT PEG$ 89 SH-646 2 FT PKG 111$ SN-291 2$ FT ROLL $1295 MEDIUM 062 ID- 156 ODl 54-2851 FT PKG$ 90 SH-545 2 FT PKG $110 SN 28925FT ROLL. $1195 FUEL FITTING SIZE * Heat-Proof will melt resting dIrectly hotteSt part running model engine Wont Harden Fuelil'~ 9111 Resistant Cuts TearsNOT FOR GASOLINE Sig first introduce silicone fuel line tubing model aviation market way back 1964 premium tubing still comes its original natural white color Some competitors would have believe ad ding blue red yellow dye tubing charging higher price makes product better dont believe Sigs original silicone fuel tubing has important characteristics need quality fuel line None Better Any Price OR COLOR See dealer first available order direct Call 800-247-5003 toll free orders Latest Catalog $300 SIG MANUFACTURING CO INCMontezuma IA 50171 Say8 th8t old TinierjtGI st 550115 Gte1W$OflFrom this. peEt VtUQ. 1-eES TaOtS Mole 4 Ignition Engine Parts Only Over 600 items Send $200 current catalog performances Championships showed aeromodeling sport can unite competitors countries no matter good individual may perform love talking about model airplanes should also remembered dont go wont learn learning essential part improv ing performance contestants finished following order best speed kilometers per hour listed 1 Kalmikov USSR29363 2 Piskalev USSR28800 3 Mult Hungary 287534 Dodge USA28639 5 Choj nacki Poland28639 6 Szegadi Hungary 285267 KohaniukUSSR28191 8 Molnar Hungary28059 9 Rachwal Po land27993 10 Schuette USA27734 11 Novakowski Poland27522 12 Ding PRC27231 13 Zhu PRC27231 14 HalmanUK27 149 15 LiPRC 27027 16 Assen Bulgaria26905 17 Kabakov Bulgaria26745 18 Kales Yugo slavia26548 19 Bianchi Brazil26 181 20 Matilainin Finland25714 21 Schmidt FRG25622 22 Hrustanovic Yugo slavia255 34 23 Hiern Australia25495 24 Rosenhan FRG25263 25 Magne France25 174 26 Brewin UK25 122 27 Bilat Switzerland24879 28 Borovac Yugoslavia2481O 29 Borer Switzerland 2474230 Bontcev Bulgaria24590 31 Metkemeyer Netherlands245 2332 New ton USA24406 33 McGalddery UK 2435734 Bertin Brazil24324 35 Fall gren Sweden24096 36 Christen Switzer land23952 37 Rietbergen Netherlands 23952 38 Kjelberg Sweden23809 39 Valo Finland23560 40 Wake Australia Great Planes Big Stiks offer quality ease r assembly superior flighf characteristics never before available stik style models Features include notched interlocking die machine-cut balsa plywood parts fast accurate construc tion hardware Additional hardware included either tricycle talidragger configuration Three versions available 53 span 20 size 59 span 40 size 60 size require 4-channel radio Available al KATPIAftIIi Leading Dealers ~JELE Nalionwide P0 5ov721 U va IL 61801- 23047 41 Fagerstrom Finland22929 42 Hanting Australia22332 43 Pinho Brazil0 Thanks once again David Brewin member UK Speed team report Gene Hempel 301 N Yale Dr Garland TX 75042 CL Racing/Ballard Continued page 70 fiberglass/epoxy prop means epoxy curing agent mixture improper prop should sent back manufacturer refund/replacement addition inspec tion fiberglass strands blade shows minimum amount strands hub area prop will certalnly prone shrinking under heat pressure high-winding Rat engine end flying day always take props Ive used inspect front strong light see internal cracks alr bubbles may produce crack subsequent failure also look hairline cracks around bubbles locked epoxy could lead blade failure As always solicit comments ideas photos John C Ballard 10102 Kimblewick Dr Louisville KY 40223 responding advertisers mention read about ModelAviation Wi Idf ref Sackett Continued page 75 carefully taCk-glue position using few drops cyanoacrylate CyA Draw outline fuselage rough-cut toshapeNexttakeapieceoflx lx 10-in medium balsa tack-glue position tailpiece outer shape fuselage can sanded final shape leaving area re movable cowl unfinished Break assembly apart clean pan mount enginetaping up openings keep dust dirt out until shaping work completed Locate four tie-down holes drill out little oversize accommodate brass tubing glue tubes place slowdrying epoxy such Hobbypoxy 2 ensure accuracy wax tie-down bolts insert position gluing tubes Use elastic bands hold pan crutch position Let whole thing dry least 24 hours Take assembly apart use coping saw cut out center crutch outline shown drawing Decide whether wish enclose engine lugs completely fuselage cut around suggest enclose engine completely tends weaken crutch severely otherwise slight amount material will have removed lugs Rossi 15 accomplish Cut lugs back ~ia inside pan leaving enough material crutch adequate strength cowl formed blank straight-grained basswcod prefer wood cowl over fiberglass lay-up better vibration-damping strength Start cutting out engine hole diameter Ys6 larger head Use circle cutter rough-clearance inside allow cowl accept engine Rough-shape outside approximately er around shown drawing tack-glue crutch blend rest fuselage Break apart install pipe clearance inside ap proximate thickness Y32 in pipe area front should solid 166 Model Aviation FIBERGLASS COWLS 70 cowls eelpants Sig Pica Top-Flue Jesce Nosen PIlot Stafford Radials Bebrens Garmhausen W E Tech other kits plans One-piece laminated construction handlaid fiberglass strong lightweight Send SASE price list please inclpde names models interested parts br call between 9AM o PM EOT informatIon COO ordering hope hear veul FIBERGLASS 703 890-6017 iI1lept~tii Ba 530 Geodview VA 24895 possible Shape sand cooling slot venturi opening As may have noticed needle valve exits right cowlcrutch parting line So remove needle valve disassembling model needle shortened modified will covered later Stabilizer quite important build light yet very rigid stab assembly order get center gravity CG correct Select piece stiff medium-hard %6-in balsa cut shape stiffen i/u-in sq spruce hardwood Use slow-drying CyA Sand perfect symmetrical sec tion cut out elevator area elevator used original all-metal type built correctly will resist failure vibration fatigue Simply solder up frame shown plan use Sta-Brite fold over 010-in aluminum skin Cement place 3M 2216 epoxy control horn cut bit 0 30in CRS bushed 055-in pushrod Check sure height horn axle pushrod exactly /6 model may too sensitive Carefully attach elevator stab gluing i/n-in tubing ends axle slow-drying Hobbypoxy 2 sure dont glue down elevator wax areas Chapstick glue needed dry sand smooth stiffen stab couple coats thinned K&B polyester resin rubbed grain cloth Three thin coats should fine Further stiffen stab covering 2oz fiberglass cloth resin dry sand off lumps finish two coats clear resin Test-fit stab fuselage Hollow out enough material crutch allow control system work smoothly hollow tailpiece thickness rod must installed elevator attaching stab crutch Coat control areas Chapstick glue place pusbrod two-piece affair allow disassembly ship back half cut approximate length can now install two /16 ply formers two i/n x pushrod guides As shown draw ing pushrod runs close inner edge fuselage Bolt whole assembly together hand-fit pushrod its proper position Fine adjustments can made resoldering quick-links along pushrod adjusting threads Before gluing tailpiece good idea fuel-proof tail section few coats clear epoxy dry check smoothness operation system must precise little no play otherwise flying becomes erratic high speeds sloppiness fix now Carve sand pipe area like get nice smooth seat float pipe attached englne head pipe somewhat floats fuselage use two small 031-in wire hooks attached head pipe around front engine small spring way mount tuned pipe avoid bending breakage Test-fit /16-in tank shield ad justing come close possible pipe touching necessary because youll need room can get tank adjustment satisfied glue place tank shield important prevents fuel becoming heated during flight Install 055-in skids stab fuselage keep pan good alignment during hard wear tear ships receive glue four alignment tabs made /u ply Put two very front pan two rear make perfect fit like actually mold mixing up filler epoxy glue finely-chopped fiberglass cloth dabbing over tabs waxing pan can now put crutch-pan assembly together tie-down bolts dry will break apart perfect-fitting pan no play cowl mounted ship Prather DZUS clip 047-in wire hooked crutch Finish have found K&B Super poxy system works best providing tough durable fuel-proof finish begin treat bare wood surfaces reball RIC Idle-Bar Glow Plugs Long Short$1 89 Also. Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal $149 Only Swanson Associates PO Box 151 S,x 1948 Wayne NJ 07470 Remember 40 Wing 15 25 Engines Dealers ributors Welcomed Phone 703 273 9593 FLYLINE MODELS INC PO Sex 2136 Fairfax VIrgInia 22031 U 5 January 1987 167 ~----- YS Engines Parts Atlanta Kits Challenge IV Kits Hattori Pipes / Headers FAT RC Pattern Specialties PO Box 388914-248-8603 Lincoindale NY 10540 4 Classic R/C Scale TI4 SGRAT LAKES CORPORATION St tsA g0245 SANDER ADJUSTABLE TENSION HAND RFLT cAlibER MINI-STRIPSPRECISION DIE-CUT Medium Garnet SAVES TIMEREPLACEMENTFinn Garnet AND EFFORT 8165 SANDING BELTSAsstd Water Print TEE e BAR ALUMINUM EXTRUSION SANDING BLOCK tar use RUFF-STUFF Sell adhesIve sand paper Large True Surface Wee tWearOut 11 Inch 8251 Handy Use 22 Inch 8375 RUFF F ELF ADHESIVE SHEET MAKE SAN OMPER YOUR OWN SPECIAL SANDING SHAPES Easy Use Medleer Fine r Pine $39 Ho glee er drying MINIisAw $79 COMPACT 10 inch HACK SAW SAWS ANYTHING ANYWHERE Saw has rugged die-cast frame corntprtable chip-pruet plastic seal handle RecedIng nun sad ad testable B bled gives good work access Cats wood plestic metal HARDENED MUSIC WIRE extra hlades-SI$199 Add 20% postage Send 25 cotlog three coats K&B polyester sur facing resin thinned about 50-50 Spray couple coats K&B primer sand smooth spray favorite color thinned 200% get really smooth shiny look have spray very fine coats wet look really quite simple little practice can achieve out standing results Fuel system fuel system com monly used worldwide simple pure suction method Most other forms fuel delivery have inherent inconsisten cies inconsistency last thing need models fly tremendous speeds tank shown drawing must no wider /i Otherwise weight fuel centrifugal force will make difficult get engine lean enough optimum setting tubing h-in brass should cover pickup tube tank fine screen prevent air bubbles entering fuel line tank must float mounting studs totally free metal-to-metal contact pan achieve running large-size soft sili cone tubing inside 5/su-in brass tube mounting brackets using small rubber groinmets caps ends tank located adjusted using 632 aircraft nuts washers mount ing studs Make sure use grommet fill line passes through pan venturi diameter will probably determined individual model should try run large opemng possible still have enough fuel draw get off ground Start out stock Rossi unit enlarge around 280 like can increase performance adding air-collecting funnel exist ing venturi help supercharge mix enters crankcase can achieved gluing piece aluminum tubing existing venturi flange epoxy machining out bar stock Engine Wildfire built around Rossi Mark Ill engine good racing 15 will work OPS 15 good choice Cox K&B engines will fit spacious Leazen pan just fine Start rework carefully disas sembling engine inspecting parts remove bearings heat oven 300 lightly tap case bearings will fall out freely Remove casting steps main bypass areas crankcase Dremel tool polish Rossi pretty good engine out box rework should need case latest Rossi pipe-timed engines coming through revised crank liner timing figures crank should open 350 after bottom dead center close 650 after top dead center Crank work starts boring out inside diameter about 300 Radius internal areas fuel flow FLYING SCALE MODEL RIC PLANS Super Detail e Photos Instruction Sheets _ h Plans 19163 Shadowood Dr Send SASE foe listMonument CA 80132 * SCALE DOCUMENTATION * SCALE DRAWINGS MODEL PLANS PHOTOS BOOKS EPLA-TECI-I AIRPLANE CATALOGINTERNATIONAL ova ioo PAGES48500 MC KENZIE HWY S3OOVIDA OREGON 97488 Vacation 5C W0305D Handy Dissey World Kennedy Space Cester sod rent Florida 3 Bedrooms sleeps 8 Kitchen A/C Pool Tennis sod lots li/C flying Nov-May 5500 wk / June-Oct 0450 wE / sightly monthly rates also available R17 5284045 sheen w/accessorses UTNES $2795 Up PeeciStOfi Tools Book Metale StOO Cubing CAVPIELL FGLS CG 210CM SeIne Rd BpnlngflehdOtrlo 48506 513-322-5562 Mae eG MAoeees ew MOP SIIPPLID 5 For Avwson Models ANDINC III 100 W 20525I M eosd, Nan C,oOogs 01304-562 3030p j SeOfr ,,Oerfordn odqoOk,nla& o1 Ito BOX 42B5PTLANU N C28776 CARBON MAT SAMPLE 2 OR 5 OZ/SQ YD SEND $100 EACH TO AEROSPACE COMPOSITE PRODUCTS PO Box 16621 Ervine CA 92714 PSAW DIESELS Englands Finest 049 35 RJC STD Send $100 list Eric Cluttoni 913 Cedar Lane Tullahoma Tenn 37388 Ia SandSSAEoar complete ito 168 Model Aviation ERSR Padded flats curves Handy Hold Easy Us OUALITY FREE FLIGHT KITS AND SUPPLIES FOR COMPETITION AND SPORT SINCE 1975 Duster inquiriesCatalog 500 invited BLUE RIDGE MODELS. [DCO SKY DEVIL 65 Ignttnon Approxed 90 Day Warraistv - Twin Ball Bearing Crank Americas finest old-timer engine Originally designed Hassad & Havlik replica engine resonic tuning ensures continuous flow power through speed range Look out green one$ goodbye red headT&Ds replica Sky Devil 65 $279 less coil cond & plug alit lesldents add 6% sales tax ORDER DIRECT T&D RESEARCH AssoclArEs 6371 El Cajon Blvd Suite 115 San Diego CA 92115 SI FOR BROCHURE well opening counterweight area shown drawing help atom ize incoming fuel charge carefully cut eight grooves around crank hole back good idea cover crank pin small piece brass tubing protect grinding latest Rossi Mark III engines pipe-timed variety using ABC piston liner sets timing figures 1270 transfer timing 1940 exhaust ideally suited high rpm small prop alcohol-burning models FAI Speed type need to liner smooth out corners transfer boost ports little better fuel flow piston liner assemblies set up very close optimum fits right out box should no need lapping refitting connecting rod can streamlined symmetrical section improve fuel flow should done small jewelers file set using rounded files corners Finish up No 320 paper polish out ensure have good leak-proof seal between liner glowhead first lap liner top flange piece No 400 paper glass remove machine scores take old glowhead lap two together mild-cut polish achieve perfect fit Thoroughly clean parts before reassemble Its good idea scrub parts toothbrush methanol follow ultrasonic cleaner have case should clean free lint Warm up case drop bearings crank Put prop tighten up seat bearings let cool slowly test spin crank should spin freely six seven seconds come stop TDC top dead center binding occurs warm case again tap lightly small wooden block will seat bearings properly new Rossis really precise engines should experience no difficulty step Assemble rod wrist pin piston liner engine dry turn over check binds roughness go engine should feel extremely free except approximately 040 TDC liner taper cinches piston set up head clearance mark deck height TDC compare depth plugs using various shims try achieve head clearance 022 024 start withor maybe little Later flying can play dimension attain maxi mum power particular combina tion backplate used stock comes although some guys have success shimming out 040 050 aluminum spacer engine needs very little break inmaybe 10 15 minutes fast four-cycle hops Bolt 7-3V2 prop cut 6-in diameter run fast rich no pipe first 10 minutes needle holds steady try few peak runs check rpm tachometer should read figure around 27000 maybe 28000 good engine Attach Rossi No 2 pipe bring up peak take reading rpm figure should around 34000 35000 An engine will turn rpm good high 1 60s right prop An engine tachs 33000 will fly FAI ships around 158 mphvery competitive what Rossis will turn right out box wish can pass up engine modifications initial flights get feel airplane modifications later can note difference Propeller Single-blade carbon fiber some cases hardwood props have accepted standard FM Speed flying since found way go fast alcohol through high rpm number companies produce props different styles pitches Try 62-in di ameter 54 5-in pitch best results Mark III Rossi Jurgen Lenzen has copies famous world-record-holding Hungarian desigus well number own prices very reasonable about $5 Props also available Walt Perkins Bill Hughes myself Dolly Construct dolly shown note too asymmetric help balance model dolly January 1987 169 -uriumaflCe System Tar iuP PERFORMANCE K&B ENGINES AirplaneManne K&B FUELSK&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER P0KV RESIN K&B SUPER P0KV THINNER K&B SUPER P0KV PRIMER K&B SUPER FOXY PAINT K&B MIXING CUPS __ ADVANTAGE HORNET Strap yourself Americas first digital fighter Follow Hornet through design testing Come board aircraft carrier qualification weapons testing US Navy USMC Allied squadron training deployment Get Hornet handlers view cockpit move sky around See two types fighter pilots. fly Hornets wish didl! Video Running Time 45 Minutes Specify Beta VHS Send Cheque Money Order To GareexProductlonsOept T 460 Grandview Ave London Ont N6K 2T5 us canada add 5350 shp 5 non Oni Oesdenls add lOb POT $499 Inclode Visa o MC# nook den tlCa5on C Eopi5 Oaie Allow 23 weeks delivery SHIPPED DUTY FREE INTO USA ensure good tracking line tension dur ing critical takeoff period Take time build very true straight unit solder joints pre-soldered wrapped fine brass wire soldered Sta-Brite equivalent high-tempera ture solder making dolly sure slip some silicone tubing over areas come contact airplane before final assembly Flying Check model carefully make sure everything solid operating 100% two lines should double looped prevent chance ends opening up causing disaster Two-line models quite safe Monoline AMA models use very large wire diameters easy maintain safetys sake always inspect lines before flying kinks other signs wear begin approximate needle valve setting strap standard bench test prop fill tank fire up engine After slight warm-up period engine will hit pipe dramatically Adjust needle full-peak run slightly rich side shut off engine placing thumb over back pipe open needle another one-quarter turn bolt flying prop Youll ready first flight make fuel system work correctly must first understand tank position sets needle flight adjustment should make needle get setting necessary become airborne Fire up engine let warm up about 10 seconds raise nose slightly lean out pre-stage pipe Once engine picks up lower stage pipe will have enough power launch Hold elevator neutral until sufficient speed attained lift out dolly usually one-half three-quarters lap release model engine floods out rich flight move tank outboard slightly about 0/is try again until steady full-peaked run achieved engine runs lean hitting pipe off move tank inboard slightly go again small amount Wind Direction Anytime Anywhere B FLYMj SOCK 5 inches plus tails Attaches antenna mast Iclips includedi Available frequency colors IGive frequency number orderl $95 plus5&H66jj ForaignordersaddS&H$150 Calif Residents add 6% tax Jeffla Products PO Bex 484 Lake EIsInore CA 92330 fine tuning like will find optimum setting very easy come should very consistent FAT Speed tremendous challenge Just coming up good-flying airplane reliable fuel system half battle Wildfire solid good-flying ship allows concentrate other es sentials such engine propeller build model carefully follow directions shouldnt hard become competitive eventually join world class competition Give try Speed equipment suppliers/information North American Speed Society PO Box 82294 Burnaby BC V5C 5P7 Canada Topflight detailed information phases CL Speed flying Quarterly publication $1 5/year Ed Chris Sackett Jurgen Lenzen Alfred Dobbert Str 57 5600 Wuppertal 2 West Germany Speed pan Wildfire Speed model FAT single-blade props metric-size lines Sackett Products PO Box 82294 Burna BC V5C 5P7 Canada Aluminum wing panels carbon fiber props Rossi Sales America 1325 Carol Dr Memphis TN 38116 Rossi 15 MK III engines Rossi 15 tuned pipes glowheads Shadow Racing 1100 SE 28th St Ocala FL 32670 FAT single-blade propellers carbon fiber special prop-making epoxy Kelly Props PO Box 38 Western Springs IL 60558 sizes FAT single-blade props glass graphite Mall Show/Nunes Continued page 77 Ask manager tables barriers tablecloths etc available use display mall location provides materials set up take down finished mall area does provide items mentioned will have take steps locate secure items 170 Model Aviation SWEITZER ENTERPRISES KI CATALOGS PO BOX 834HILLSBORO OR 97123 PLANS----52OO RESEARcH cENTER--$250 3-VIEwS PHOTOS & MANUALS PHONE 503640-5102 i/4 SCALFOPT22 Kits WINGSPAN 901/4 GINEBASIC KIT 2- 8 Balsa fuselage wings----$ 325 DELUXE KIT Fiberglass fus balsa wing- $375 INThODUCTORY br radialPRICES engine notflPRICE INCREASES AFTER incladadEEU els 1587 ADD $ 24forNOTE $ISO deposit fullpaymentORDERS SHIPPED AIR MAIL isreqd reserveyour order 6 1986 h.
Edition: Model Aviation - 1987/01
Page Numbers: 72, 73, 74, 75, 166, 167, 168, 169, 170
U el consiruciion wcnniques aiong WlTfl Knowleoge gained prototypes place plane leading edge FAi Speed modeling MANY OF YOU will look over design ask yourselves model airplane ever came look like point asymmetric Control Line model has around since 1940s never gained popularity until discovered much speed gained through use longer inboard wing cover up two control lines used FAI Speed Chuck Schuette current AMA FAd class record holder first utilize asymmetry caught internationally mid-70s two Hungarians took limit wings long five feet outboard asymmetric sidewinder model now known much complicated build conventional AMA-style Speed model else being equal offers three four mph advantage understand FAI Speed mod els have evolved exotic creations today might helpful review brief history event first Canadian national record holder attests just much form follows func tion comes streamlined shape FAI Control Line Speed plane Chris Sackett Control Line Speed World Championships held 1955 Croix de Berny just few miles outside Paris rather loose affair no official team US airplanes very small high wing loading creations typical AMA ships early SOs fuel unlimited line diameter fortwo lines 25mm Jozef Sladky Czech oslovakia won event 1113mph using own engine Editor AMA files show CL Speed World Champs history bit different being 1954 World Championships Hague Netherlands 1954 contest two Speed classes 5cc 25cc Bob Lutker US won 5cc class second attempt World Championships Czechoslovakia 1957 EditorReallyafourth 1956 Speed World Championships Florence Italy team trials held US models proxy flown con testants could agree models never sent until 1960 World Championships staged full US team time 72 Model Aviation specific wing loading requirements still unlimited fuel Monoline accept able although its use protested Italians Ugo Rossi Italy won event actually whipping model narrow ly beat 2nd-place finisher Bill Wisniewski 146 142 mph first time models FAI size 7747 sq minimum used 1962 meeting Kiev straight fuel combination methanol castor oil first introduced Chuck Schuette fathers asymmetric sidewinder designs attended US team member conventional symmetrical mod el flew asymmetric backup ship practice may have Euro peans first sight design sub sequent World Champs kinds asym metric designs turned upeither upright semi-asymmetric true dog leg inboard full asymmetric Californians Chuck Schuette Arnold Nelson Bob Spahr among others used inboard design number European speedsters notably Italians playing outboard layout plan pan inside engine head outside flying concept classes Speed including 10cc class basic design almost universally accepted now competing nations FAI Speed except US team members continue use inboard version prime reasons utilizing outboard setup enable modeler use pure suction fuel feed system pan inside makes room large hard tank inside centerline venturi engine can have richer mix during flightsomewhat like having mild form pressure system simple reliable model becomes airborne quite easily first decided design model borrowed lot ideas came up some own hoping best worlds wanted long inboard asym metric wing outboard fully asymmetric layout model clean could expected slim fuselage enclosed pipe two-piece shell easy main tenance As designing model Jurgen Lenzen West German FAI flier just made available perfect sidewinder speed pan integrated wing stub based final design around pan speed pan available Jurgen Lenzen Alfred-Dobbert Str 57 5600 Wuppertal 2 West Germany Twen ty US dollars will bring right door wing can obtained Sackett Products PO Box 82294 North Burnaby BC V5C 5P7 price $30 US Rossi MK III available Rossi Sales America 1325 Carol Dr Memphis TN 38116 speed pan Take exact dimension front pan leading edge wing set up speed pan carefully stock pan comes root chord too wide leading edge fillet must cut back accom modate 3-in -wide wing dimension leading edge backplate spinner must 3 will have grind inside pan carefully provide clearance Rossi 15 get right location Once satis fied spray some blue layout dye mark holes scribe center punch drill tap 4-40 bolts Make up aug hold pan 900 drilling make sure dont drill through casting must work utmost accuracy sloppiness drilling may give up downthrust engine next step installation spar control system spar formed piece -in aluminum bar stock can found metal shops Type 7075 nice necessary original built piece soft aluminum working just fine Cut piece 25 taper 2 tip Notice necessary spar extend full length material can tapered lathe simply filed hand flat top bottom spar attached pan tapping threading -28 tapping pan use ajig drill press assure accuracy Test-fit spar pan make sure everything lines up square may find necessary use small shims between spar pan order obtain desired location wing aligmnent incidence January1987 73 ne two-piece cowi ne engine nas uniflow ram intaketube sealed tothe cowl rubber grommet Lenzen counterbalance spinner needle valve has shortened facilitate engine removal disturbing flight adjusted setting suction-only fuel feed system has proven very reliable Note position overflow tube tank pressurizing purposes quick-link pushrod connector set root fillet pan 010m wing skin slips over fillet ng fillet can set exact root angle attack Using wing correct twist carve 090-in positive inci dence root pan Wing Making aluminum wings very simple once youve tried think youll agree quickest easiest form wing can make material ALCLAD 2024 T3 thickness 010 Speed fliers find material aircraft surplus stores around airports service work cost outlets quite reasonable sheet 3 x 10 ft will build airplanes Determine grain material first can seen brushed effect material possesses after being rolled mill sure lay out wing grain running leading edge trailing edge Otherwise wing will split being folded Use spray-type layout dye aluminum surface mark pattern carefully scribe Cut wing No 11 X-Acto blade scoring aluminum skin three four times necessary cut right through material will break off very cleanly bent slightly achieve airfoil section must first bend material flat sheet metal brake Failing can clamp between two pieces 2-in angle iron clamped large vise use third piece straight angle iron bend 900 Remove vise carefully bend flat workbench using couple planks -in plywood Try flatten fold around 6 nice sharp leading edge Open up 30 using couple pieces sheet metal making sure straight true ______ 5/3 STABILIZER DIHEDRAL SKID 7-34 TA ILS K ID 7K51/2 21/4C - STAB 3/1K SO HARDWOOD-C VI HARY BALSA STAB STIFFEN BY RUBBING K B POLYESTER INTO GRAIN COVER WITH 2 07 FIBERGLASS CLOTH P2 ROSSII OR TUNED PIPE --4 \ 047 COWL ALIGNMENT PINS -lFi S-D2 TIE-DOWN BOLTS L/IK PLY TANKI SHIELDCIi II 1W ROSSI IS MK III I ENGINE L i 1 REMOVABLE COWL I CARVED FROM BISS BLOCK 1-1/21-1/4 9CUSTC*4 2BO AWM VENTURI L4 ALUM TUBE /1HEASPIPE COOLER OZUS I/B COOLING SLOT SIDE VIEW DSK CF PROPELLER 0I2345B Rough up inside bonding surface wing ooarse sandpaper bond Goodyear Pliobond Clamp wing between two pieces 1-in angle iron good-sized vise Align carefully until get desired airfoil section slight washin effect Clamp last /16 trailing edge get true symmetrical airfoil no polywog Clamp full length wing small C-clamps spaced 6 bake 3500 oven hour half An alternate method ofbondingthewingistouse 3M 2216 gray epoxy clamp same manner Use little possible weight will build up quickly Belicrank Cut out bellcrank piece 030 CRS shown draw ing sure bush holes brass tubing Cut slot boss provided Lenzen pan accept bellcrank crank anchored 4-40 flathead Allen screw tapped pan make smooth bearing surface bellcrank run some solder approximately 080-in over threads come contact bushing 74 Model Aviation authors Rossi features modified needle valve custom-shaped 265-in alumi num venturi custom speed pan available Jurgen Lenzen West Germany bellcrank resides beneath fuel tank Two mounting studs hold tank place Full-Size Plans Available. See Page 180 FRONT VIEW 5-56 1/4 BUTTONHEAD WING RET SCREWS S8 oR~LDRAM-FILL T VIEW RAME- 43/IS A FR I/G HITH METALkILW I/R4I4V8 TOP VIEWSIDE VIEW FUEL TANK DETAIL BUILD FROM 006 TIN FILE IN TOOMODIFIED SCREWORIVER NOED FLAT 070 CUT EEDLETOI070 SLOT NEEDLE VALVE MOOS S/IA BIL SILVER SOLDER TOOl-WOO RUTS-I FOI9MED -S/4 oS/B L52 BRASS PUSHMOD SUITES ITYPI 3D OCOCK LINK SASS EM BLY 0235 CLIP ASSY PRATHER 4OBO C/IA PLYNDOO TAKF-OF flOLLY Ho-oH SIDE VIEW FUEL4-40 BELLCRANI BOLT FU00ROO SHIELDTAP 1004 v4-2BLOCATION PORTIONBELLCRANK 030 CRSD -D 6-32 TANK MCUNTING STUD -1/10 PLYWOFIU E -E N 0 GJBAO TA IWO EEL 10-S/A---COVER ALL WIRE IN CONTACT MED SIZE__SILICONE TURING SCALE I/S SIZE II/R MUSIC WIRE N-I/A TO MODELWIRE 01-1/2SAAPE FRONT B REAO 3/30 TAILTRAFCRACCES TO SUIT MOSEL WIRE ____2-3/4 OUBRO S/I/U SOLDER WASHERS ROTH SIDES FRONT VIEW F-IF-2010 2024 ALUM WIND PANEL 1 TANK MOUNT_________AVAIL FROM SACKETT PRODUCTS SSBOO 02294 BURNOOT BC CANADA VSC -SF7 PANEL DIM 3s 3/4o ST-I/B LA Do5/4 VASS MONOLINE 30K UP BUTTONS TOP VIEW SPAR FORMED FROM 3/B -6061 TO ROUND STOCK THREADED TO PAN LEADOUT GUIDES FROM FLATTENED I/H BRASS TUBE SIDEWINOER PAN AVAILABLE 3URGEN LENZEN ALFRED-TOBBERT 575600 WUPPERTAL 2 W GERMANY 1/16 PLY PIPE/TANK SHIELD N SLEEVES GASS TUBING - A-A ______________ CUT BACK WING FILLET TO ACHIEVE CMENSION U-S/A 025 3/0 __ -045 II-236 WITSIF 035 DIAz-F-F TAILS KID REPLACEABE 078VOW OF PAN SlIOSRISO POSITIVE WIRE SKIDREID GMENSIONS-WINN 0 ROILT MODEL AVIATION EAI C/L SPEED WIND SPAN37DESIGNED B DRAWN BT WING AREA 716950 INCHRIS SACKETT STAB AREA2BBBSO INTRACING BY LENGTH19JOE DEMARCO WEIGHT20 TO21 OZ CANADIAN NATiONAL RECORD HOLDEI9 Cut out exit holes pan wing fillet area control lines lines attached using small Monoline buttons hooked up 047-in lead-outs see drawing Finally drill tap two 632 holes tank mount Finish shaping pan externally until get exact shape want lap engine mount surface some emery paper oil plate sheet glass Square mating surfaces true up much models favorable flying char acteristics will depend upon alignment entire model based around basswood crutch great care should taken get stab mount ing surface square thrust line Start laying out centerline both sides Ys-in crutch work solely reference line Beginning square edge locate cut stab mount area should sit 70 dihedral angle h-in below centerline crutch Its easier keep everything aligned work table saw can cut hand youre accurate Lay pan crutch centering Continued page 166 January 1987 75 variety slnglebiade carbon fiber props Lenzen counterweights Props ob tained varlousspeciaiity manufacturers theones range pitchfrom 54to59 Bought Colored Fuel Line YOU DEFINITELY PAID TOO MUCH Pay Fancy Colors ON ENGINE DETERMINES REQUIRED TUBING DIAMETER EXTRA LARGE 125 iD 250 001 SH-616 2FTPKG $135 SII-661 2$ FT ROLL $1325 LARGE 093 10- 215 GD SH-2901 FT PEG$ 89 SH-646 2 FT PKG 111$ SN-291 2$ FT ROLL $1295 MEDIUM 062 ID- 156 ODl 54-2851 FT PKG$ 90 SH-545 2 FT PKG $110 SN 28925FT ROLL. $1195 FUEL FITTING SIZE * Heat-Proof will melt resting dIrectly hotteSt part running model engine Wont Harden Fuelil'~ 9111 Resistant Cuts TearsNOT FOR GASOLINE Sig first introduce silicone fuel line tubing model aviation market way back 1964 premium tubing still comes its original natural white color Some competitors would have believe ad ding blue red yellow dye tubing charging higher price makes product better dont believe Sigs original silicone fuel tubing has important characteristics need quality fuel line None Better Any Price OR COLOR See dealer first available order direct Call 800-247-5003 toll free orders Latest Catalog $300 SIG MANUFACTURING CO INCMontezuma IA 50171 Say8 th8t old TinierjtGI st 550115 Gte1W$OflFrom this. peEt VtUQ. 1-eES TaOtS Mole 4 Ignition Engine Parts Only Over 600 items Send $200 current catalog performances Championships showed aeromodeling sport can unite competitors countries no matter good individual may perform love talking about model airplanes should also remembered dont go wont learn learning essential part improv ing performance contestants finished following order best speed kilometers per hour listed 1 Kalmikov USSR29363 2 Piskalev USSR28800 3 Mult Hungary 287534 Dodge USA28639 5 Choj nacki Poland28639 6 Szegadi Hungary 285267 KohaniukUSSR28191 8 Molnar Hungary28059 9 Rachwal Po land27993 10 Schuette USA27734 11 Novakowski Poland27522 12 Ding PRC27231 13 Zhu PRC27231 14 HalmanUK27 149 15 LiPRC 27027 16 Assen Bulgaria26905 17 Kabakov Bulgaria26745 18 Kales Yugo slavia26548 19 Bianchi Brazil26 181 20 Matilainin Finland25714 21 Schmidt FRG25622 22 Hrustanovic Yugo slavia255 34 23 Hiern Australia25495 24 Rosenhan FRG25263 25 Magne France25 174 26 Brewin UK25 122 27 Bilat Switzerland24879 28 Borovac Yugoslavia2481O 29 Borer Switzerland 2474230 Bontcev Bulgaria24590 31 Metkemeyer Netherlands245 2332 New ton USA24406 33 McGalddery UK 2435734 Bertin Brazil24324 35 Fall gren Sweden24096 36 Christen Switzer land23952 37 Rietbergen Netherlands 23952 38 Kjelberg Sweden23809 39 Valo Finland23560 40 Wake Australia Great Planes Big Stiks offer quality ease r assembly superior flighf characteristics never before available stik style models Features include notched interlocking die machine-cut balsa plywood parts fast accurate construc tion hardware Additional hardware included either tricycle talidragger configuration Three versions available 53 span 20 size 59 span 40 size 60 size require 4-channel radio Available al KATPIAftIIi Leading Dealers ~JELE Nalionwide P0 5ov721 U va IL 61801- 23047 41 Fagerstrom Finland22929 42 Hanting Australia22332 43 Pinho Brazil0 Thanks once again David Brewin member UK Speed team report Gene Hempel 301 N Yale Dr Garland TX 75042 CL Racing/Ballard Continued page 70 fiberglass/epoxy prop means epoxy curing agent mixture improper prop should sent back manufacturer refund/replacement addition inspec tion fiberglass strands blade shows minimum amount strands hub area prop will certalnly prone shrinking under heat pressure high-winding Rat engine end flying day always take props Ive used inspect front strong light see internal cracks alr bubbles may produce crack subsequent failure also look hairline cracks around bubbles locked epoxy could lead blade failure As always solicit comments ideas photos John C Ballard 10102 Kimblewick Dr Louisville KY 40223 responding advertisers mention read about ModelAviation Wi Idf ref Sackett Continued page 75 carefully taCk-glue position using few drops cyanoacrylate CyA Draw outline fuselage rough-cut toshapeNexttakeapieceoflx lx 10-in medium balsa tack-glue position tailpiece outer shape fuselage can sanded final shape leaving area re movable cowl unfinished Break assembly apart clean pan mount enginetaping up openings keep dust dirt out until shaping work completed Locate four tie-down holes drill out little oversize accommodate brass tubing glue tubes place slowdrying epoxy such Hobbypoxy 2 ensure accuracy wax tie-down bolts insert position gluing tubes Use elastic bands hold pan crutch position Let whole thing dry least 24 hours Take assembly apart use coping saw cut out center crutch outline shown drawing Decide whether wish enclose engine lugs completely fuselage cut around suggest enclose engine completely tends weaken crutch severely otherwise slight amount material will have removed lugs Rossi 15 accomplish Cut lugs back ~ia inside pan leaving enough material crutch adequate strength cowl formed blank straight-grained basswcod prefer wood cowl over fiberglass lay-up better vibration-damping strength Start cutting out engine hole diameter Ys6 larger head Use circle cutter rough-clearance inside allow cowl accept engine Rough-shape outside approximately er around shown drawing tack-glue crutch blend rest fuselage Break apart install pipe clearance inside ap proximate thickness Y32 in pipe area front should solid 166 Model Aviation FIBERGLASS COWLS 70 cowls eelpants Sig Pica Top-Flue Jesce Nosen PIlot Stafford Radials Bebrens Garmhausen W E Tech other kits plans One-piece laminated construction handlaid fiberglass strong lightweight Send SASE price list please inclpde names models interested parts br call between 9AM o PM EOT informatIon COO ordering hope hear veul FIBERGLASS 703 890-6017 iI1lept~tii Ba 530 Geodview VA 24895 possible Shape sand cooling slot venturi opening As may have noticed needle valve exits right cowlcrutch parting line So remove needle valve disassembling model needle shortened modified will covered later Stabilizer quite important build light yet very rigid stab assembly order get center gravity CG correct Select piece stiff medium-hard %6-in balsa cut shape stiffen i/u-in sq spruce hardwood Use slow-drying CyA Sand perfect symmetrical sec tion cut out elevator area elevator used original all-metal type built correctly will resist failure vibration fatigue Simply solder up frame shown plan use Sta-Brite fold over 010-in aluminum skin Cement place 3M 2216 epoxy control horn cut bit 0 30in CRS bushed 055-in pushrod Check sure height horn axle pushrod exactly /6 model may too sensitive Carefully attach elevator stab gluing i/n-in tubing ends axle slow-drying Hobbypoxy 2 sure dont glue down elevator wax areas Chapstick glue needed dry sand smooth stiffen stab couple coats thinned K&B polyester resin rubbed grain cloth Three thin coats should fine Further stiffen stab covering 2oz fiberglass cloth resin dry sand off lumps finish two coats clear resin Test-fit stab fuselage Hollow out enough material crutch allow control system work smoothly hollow tailpiece thickness rod must installed elevator attaching stab crutch Coat control areas Chapstick glue place pusbrod two-piece affair allow disassembly ship back half cut approximate length can now install two /16 ply formers two i/n x pushrod guides As shown draw ing pushrod runs close inner edge fuselage Bolt whole assembly together hand-fit pushrod its proper position Fine adjustments can made resoldering quick-links along pushrod adjusting threads Before gluing tailpiece good idea fuel-proof tail section few coats clear epoxy dry check smoothness operation system must precise little no play otherwise flying becomes erratic high speeds sloppiness fix now Carve sand pipe area like get nice smooth seat float pipe attached englne head pipe somewhat floats fuselage use two small 031-in wire hooks attached head pipe around front engine small spring way mount tuned pipe avoid bending breakage Test-fit /16-in tank shield ad justing come close possible pipe touching necessary because youll need room can get tank adjustment satisfied glue place tank shield important prevents fuel becoming heated during flight Install 055-in skids stab fuselage keep pan good alignment during hard wear tear ships receive glue four alignment tabs made /u ply Put two very front pan two rear make perfect fit like actually mold mixing up filler epoxy glue finely-chopped fiberglass cloth dabbing over tabs waxing pan can now put crutch-pan assembly together tie-down bolts dry will break apart perfect-fitting pan no play cowl mounted ship Prather DZUS clip 047-in wire hooked crutch Finish have found K&B Super poxy system works best providing tough durable fuel-proof finish begin treat bare wood surfaces reball RIC Idle-Bar Glow Plugs Long Short$1 89 Also. Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal $149 Only Swanson Associates PO Box 151 S,x 1948 Wayne NJ 07470 Remember 40 Wing 15 25 Engines Dealers ributors Welcomed Phone 703 273 9593 FLYLINE MODELS INC PO Sex 2136 Fairfax VIrgInia 22031 U 5 January 1987 167 ~----- YS Engines Parts Atlanta Kits Challenge IV Kits Hattori Pipes / Headers FAT RC Pattern Specialties PO Box 388914-248-8603 Lincoindale NY 10540 4 Classic R/C Scale TI4 SGRAT LAKES CORPORATION St tsA g0245 SANDER ADJUSTABLE TENSION HAND RFLT cAlibER MINI-STRIPSPRECISION DIE-CUT Medium Garnet SAVES TIMEREPLACEMENTFinn Garnet AND EFFORT 8165 SANDING BELTSAsstd Water Print TEE e BAR ALUMINUM EXTRUSION SANDING BLOCK tar use RUFF-STUFF Sell adhesIve sand paper Large True Surface Wee tWearOut 11 Inch 8251 Handy Use 22 Inch 8375 RUFF F ELF ADHESIVE SHEET MAKE SAN OMPER YOUR OWN SPECIAL SANDING SHAPES Easy Use Medleer Fine r Pine $39 Ho glee er drying MINIisAw $79 COMPACT 10 inch HACK SAW SAWS ANYTHING ANYWHERE Saw has rugged die-cast frame corntprtable chip-pruet plastic seal handle RecedIng nun sad ad testable B bled gives good work access Cats wood plestic metal HARDENED MUSIC WIRE extra hlades-SI$199 Add 20% postage Send 25 cotlog three coats K&B polyester sur facing resin thinned about 50-50 Spray couple coats K&B primer sand smooth spray favorite color thinned 200% get really smooth shiny look have spray very fine coats wet look really quite simple little practice can achieve out standing results Fuel system fuel system com monly used worldwide simple pure suction method Most other forms fuel delivery have inherent inconsisten cies inconsistency last thing need models fly tremendous speeds tank shown drawing must no wider /i Otherwise weight fuel centrifugal force will make difficult get engine lean enough optimum setting tubing h-in brass should cover pickup tube tank fine screen prevent air bubbles entering fuel line tank must float mounting studs totally free metal-to-metal contact pan achieve running large-size soft sili cone tubing inside 5/su-in brass tube mounting brackets using small rubber groinmets caps ends tank located adjusted using 632 aircraft nuts washers mount ing studs Make sure use grommet fill line passes through pan venturi diameter will probably determined individual model should try run large opemng possible still have enough fuel draw get off ground Start out stock Rossi unit enlarge around 280 like can increase performance adding air-collecting funnel exist ing venturi help supercharge mix enters crankcase can achieved gluing piece aluminum tubing existing venturi flange epoxy machining out bar stock Engine Wildfire built around Rossi Mark Ill engine good racing 15 will work OPS 15 good choice Cox K&B engines will fit spacious Leazen pan just fine Start rework carefully disas sembling engine inspecting parts remove bearings heat oven 300 lightly tap case bearings will fall out freely Remove casting steps main bypass areas crankcase Dremel tool polish Rossi pretty good engine out box rework should need case latest Rossi pipe-timed engines coming through revised crank liner timing figures crank should open 350 after bottom dead center close 650 after top dead center Crank work starts boring out inside diameter about 300 Radius internal areas fuel flow FLYING SCALE MODEL RIC PLANS Super Detail e Photos Instruction Sheets _ h Plans 19163 Shadowood Dr Send SASE foe listMonument CA 80132 * SCALE DOCUMENTATION * SCALE DRAWINGS MODEL PLANS PHOTOS BOOKS EPLA-TECI-I AIRPLANE CATALOGINTERNATIONAL ova ioo PAGES48500 MC KENZIE HWY S3OOVIDA OREGON 97488 Vacation 5C W0305D Handy Dissey World Kennedy Space Cester sod rent Florida 3 Bedrooms sleeps 8 Kitchen A/C Pool Tennis sod lots li/C flying Nov-May 5500 wk / June-Oct 0450 wE / sightly monthly rates also available R17 5284045 sheen w/accessorses UTNES $2795 Up PeeciStOfi Tools Book Metale StOO Cubing CAVPIELL FGLS CG 210CM SeIne Rd BpnlngflehdOtrlo 48506 513-322-5562 Mae eG MAoeees ew MOP SIIPPLID 5 For Avwson Models ANDINC III 100 W 20525I M eosd, Nan C,oOogs 01304-562 3030p j SeOfr ,,Oerfordn odqoOk,nla& o1 Ito BOX 42B5PTLANU N C28776 CARBON MAT SAMPLE 2 OR 5 OZ/SQ YD SEND $100 EACH TO AEROSPACE COMPOSITE PRODUCTS PO Box 16621 Ervine CA 92714 PSAW DIESELS Englands Finest 049 35 RJC STD Send $100 list Eric Cluttoni 913 Cedar Lane Tullahoma Tenn 37388 Ia SandSSAEoar complete ito 168 Model Aviation ERSR Padded flats curves Handy Hold Easy Us OUALITY FREE FLIGHT KITS AND SUPPLIES FOR COMPETITION AND SPORT SINCE 1975 Duster inquiriesCatalog 500 invited BLUE RIDGE MODELS. [DCO SKY DEVIL 65 Ignttnon Approxed 90 Day Warraistv - Twin Ball Bearing Crank Americas finest old-timer engine Originally designed Hassad & Havlik replica engine resonic tuning ensures continuous flow power through speed range Look out green one$ goodbye red headT&Ds replica Sky Devil 65 $279 less coil cond & plug alit lesldents add 6% sales tax ORDER DIRECT T&D RESEARCH AssoclArEs 6371 El Cajon Blvd Suite 115 San Diego CA 92115 SI FOR BROCHURE well opening counterweight area shown drawing help atom ize incoming fuel charge carefully cut eight grooves around crank hole back good idea cover crank pin small piece brass tubing protect grinding latest Rossi Mark III engines pipe-timed variety using ABC piston liner sets timing figures 1270 transfer timing 1940 exhaust ideally suited high rpm small prop alcohol-burning models FAI Speed type need to liner smooth out corners transfer boost ports little better fuel flow piston liner assemblies set up very close optimum fits right out box should no need lapping refitting connecting rod can streamlined symmetrical section improve fuel flow should done small jewelers file set using rounded files corners Finish up No 320 paper polish out ensure have good leak-proof seal between liner glowhead first lap liner top flange piece No 400 paper glass remove machine scores take old glowhead lap two together mild-cut polish achieve perfect fit Thoroughly clean parts before reassemble Its good idea scrub parts toothbrush methanol follow ultrasonic cleaner have case should clean free lint Warm up case drop bearings crank Put prop tighten up seat bearings let cool slowly test spin crank should spin freely six seven seconds come stop TDC top dead center binding occurs warm case again tap lightly small wooden block will seat bearings properly new Rossis really precise engines should experience no difficulty step Assemble rod wrist pin piston liner engine dry turn over check binds roughness go engine should feel extremely free except approximately 040 TDC liner taper cinches piston set up head clearance mark deck height TDC compare depth plugs using various shims try achieve head clearance 022 024 start withor maybe little Later flying can play dimension attain maxi mum power particular combina tion backplate used stock comes although some guys have success shimming out 040 050 aluminum spacer engine needs very little break inmaybe 10 15 minutes fast four-cycle hops Bolt 7-3V2 prop cut 6-in diameter run fast rich no pipe first 10 minutes needle holds steady try few peak runs check rpm tachometer should read figure around 27000 maybe 28000 good engine Attach Rossi No 2 pipe bring up peak take reading rpm figure should around 34000 35000 An engine will turn rpm good high 1 60s right prop An engine tachs 33000 will fly FAI ships around 158 mphvery competitive what Rossis will turn right out box wish can pass up engine modifications initial flights get feel airplane modifications later can note difference Propeller Single-blade carbon fiber some cases hardwood props have accepted standard FM Speed flying since found way go fast alcohol through high rpm number companies produce props different styles pitches Try 62-in di ameter 54 5-in pitch best results Mark III Rossi Jurgen Lenzen has copies famous world-record-holding Hungarian desigus well number own prices very reasonable about $5 Props also available Walt Perkins Bill Hughes myself Dolly Construct dolly shown note too asymmetric help balance model dolly January 1987 169 -uriumaflCe System Tar iuP PERFORMANCE K&B ENGINES AirplaneManne K&B FUELSK&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER P0KV RESIN K&B SUPER P0KV THINNER K&B SUPER P0KV PRIMER K&B SUPER FOXY PAINT K&B MIXING CUPS __ ADVANTAGE HORNET Strap yourself Americas first digital fighter Follow Hornet through design testing Come board aircraft carrier qualification weapons testing US Navy USMC Allied squadron training deployment Get Hornet handlers view cockpit move sky around See two types fighter pilots. fly Hornets wish didl! Video Running Time 45 Minutes Specify Beta VHS Send Cheque Money Order To GareexProductlonsOept T 460 Grandview Ave London Ont N6K 2T5 us canada add 5350 shp 5 non Oni Oesdenls add lOb POT $499 Inclode Visa o MC# nook den tlCa5on C Eopi5 Oaie Allow 23 weeks delivery SHIPPED DUTY FREE INTO USA ensure good tracking line tension dur ing critical takeoff period Take time build very true straight unit solder joints pre-soldered wrapped fine brass wire soldered Sta-Brite equivalent high-tempera ture solder making dolly sure slip some silicone tubing over areas come contact airplane before final assembly Flying Check model carefully make sure everything solid operating 100% two lines should double looped prevent chance ends opening up causing disaster Two-line models quite safe Monoline AMA models use very large wire diameters easy maintain safetys sake always inspect lines before flying kinks other signs wear begin approximate needle valve setting strap standard bench test prop fill tank fire up engine After slight warm-up period engine will hit pipe dramatically Adjust needle full-peak run slightly rich side shut off engine placing thumb over back pipe open needle another one-quarter turn bolt flying prop Youll ready first flight make fuel system work correctly must first understand tank position sets needle flight adjustment should make needle get setting necessary become airborne Fire up engine let warm up about 10 seconds raise nose slightly lean out pre-stage pipe Once engine picks up lower stage pipe will have enough power launch Hold elevator neutral until sufficient speed attained lift out dolly usually one-half three-quarters lap release model engine floods out rich flight move tank outboard slightly about 0/is try again until steady full-peaked run achieved engine runs lean hitting pipe off move tank inboard slightly go again small amount Wind Direction Anytime Anywhere B FLYMj SOCK 5 inches plus tails Attaches antenna mast Iclips includedi Available frequency colors IGive frequency number orderl $95 plus5&H66jj ForaignordersaddS&H$150 Calif Residents add 6% tax Jeffla Products PO Bex 484 Lake EIsInore CA 92330 fine tuning like will find optimum setting very easy come should very consistent FAT Speed tremendous challenge Just coming up good-flying airplane reliable fuel system half battle Wildfire solid good-flying ship allows concentrate other es sentials such engine propeller build model carefully follow directions shouldnt hard become competitive eventually join world class competition Give try Speed equipment suppliers/information North American Speed Society PO Box 82294 Burnaby BC V5C 5P7 Canada Topflight detailed information phases CL Speed flying Quarterly publication $1 5/year Ed Chris Sackett Jurgen Lenzen Alfred Dobbert Str 57 5600 Wuppertal 2 West Germany Speed pan Wildfire Speed model FAT single-blade props metric-size lines Sackett Products PO Box 82294 Burna BC V5C 5P7 Canada Aluminum wing panels carbon fiber props Rossi Sales America 1325 Carol Dr Memphis TN 38116 Rossi 15 MK III engines Rossi 15 tuned pipes glowheads Shadow Racing 1100 SE 28th St Ocala FL 32670 FAT single-blade propellers carbon fiber special prop-making epoxy Kelly Props PO Box 38 Western Springs IL 60558 sizes FAT single-blade props glass graphite Mall Show/Nunes Continued page 77 Ask manager tables barriers tablecloths etc available use display mall location provides materials set up take down finished mall area does provide items mentioned will have take steps locate secure items 170 Model Aviation SWEITZER ENTERPRISES KI CATALOGS PO BOX 834HILLSBORO OR 97123 PLANS----52OO RESEARcH cENTER--$250 3-VIEwS PHOTOS & MANUALS PHONE 503640-5102 i/4 SCALFOPT22 Kits WINGSPAN 901/4 GINEBASIC KIT 2- 8 Balsa fuselage wings----$ 325 DELUXE KIT Fiberglass fus balsa wing- $375 INThODUCTORY br radialPRICES engine notflPRICE INCREASES AFTER incladadEEU els 1587 ADD $ 24forNOTE $ISO deposit fullpaymentORDERS SHIPPED AIR MAIL isreqd reserveyour order 6 1986 h.
Edition: Model Aviation - 1987/01
Page Numbers: 72, 73, 74, 75, 166, 167, 168, 169, 170
U el consiruciion wcnniques aiong WlTfl Knowleoge gained prototypes place plane leading edge FAi Speed modeling MANY OF YOU will look over design ask yourselves model airplane ever came look like point asymmetric Control Line model has around since 1940s never gained popularity until discovered much speed gained through use longer inboard wing cover up two control lines used FAI Speed Chuck Schuette current AMA FAd class record holder first utilize asymmetry caught internationally mid-70s two Hungarians took limit wings long five feet outboard asymmetric sidewinder model now known much complicated build conventional AMA-style Speed model else being equal offers three four mph advantage understand FAI Speed mod els have evolved exotic creations today might helpful review brief history event first Canadian national record holder attests just much form follows func tion comes streamlined shape FAI Control Line Speed plane Chris Sackett Control Line Speed World Championships held 1955 Croix de Berny just few miles outside Paris rather loose affair no official team US airplanes very small high wing loading creations typical AMA ships early SOs fuel unlimited line diameter fortwo lines 25mm Jozef Sladky Czech oslovakia won event 1113mph using own engine Editor AMA files show CL Speed World Champs history bit different being 1954 World Championships Hague Netherlands 1954 contest two Speed classes 5cc 25cc Bob Lutker US won 5cc class second attempt World Championships Czechoslovakia 1957 EditorReallyafourth 1956 Speed World Championships Florence Italy team trials held US models proxy flown con testants could agree models never sent until 1960 World Championships staged full US team time 72 Model Aviation specific wing loading requirements still unlimited fuel Monoline accept able although its use protested Italians Ugo Rossi Italy won event actually whipping model narrow ly beat 2nd-place finisher Bill Wisniewski 146 142 mph first time models FAI size 7747 sq minimum used 1962 meeting Kiev straight fuel combination methanol castor oil first introduced Chuck Schuette fathers asymmetric sidewinder designs attended US team member conventional symmetrical mod el flew asymmetric backup ship practice may have Euro peans first sight design sub sequent World Champs kinds asym metric designs turned upeither upright semi-asymmetric true dog leg inboard full asymmetric Californians Chuck Schuette Arnold Nelson Bob Spahr among others used inboard design number European speedsters notably Italians playing outboard layout plan pan inside engine head outside flying concept classes Speed including 10cc class basic design almost universally accepted now competing nations FAI Speed except US team members continue use inboard version prime reasons utilizing outboard setup enable modeler use pure suction fuel feed system pan inside makes room large hard tank inside centerline venturi engine can have richer mix during flightsomewhat like having mild form pressure system simple reliable model becomes airborne quite easily first decided design model borrowed lot ideas came up some own hoping best worlds wanted long inboard asym metric wing outboard fully asymmetric layout model clean could expected slim fuselage enclosed pipe two-piece shell easy main tenance As designing model Jurgen Lenzen West German FAI flier just made available perfect sidewinder speed pan integrated wing stub based final design around pan speed pan available Jurgen Lenzen Alfred-Dobbert Str 57 5600 Wuppertal 2 West Germany Twen ty US dollars will bring right door wing can obtained Sackett Products PO Box 82294 North Burnaby BC V5C 5P7 price $30 US Rossi MK III available Rossi Sales America 1325 Carol Dr Memphis TN 38116 speed pan Take exact dimension front pan leading edge wing set up speed pan carefully stock pan comes root chord too wide leading edge fillet must cut back accom modate 3-in -wide wing dimension leading edge backplate spinner must 3 will have grind inside pan carefully provide clearance Rossi 15 get right location Once satis fied spray some blue layout dye mark holes scribe center punch drill tap 4-40 bolts Make up aug hold pan 900 drilling make sure dont drill through casting must work utmost accuracy sloppiness drilling may give up downthrust engine next step installation spar control system spar formed piece -in aluminum bar stock can found metal shops Type 7075 nice necessary original built piece soft aluminum working just fine Cut piece 25 taper 2 tip Notice necessary spar extend full length material can tapered lathe simply filed hand flat top bottom spar attached pan tapping threading -28 tapping pan use ajig drill press assure accuracy Test-fit spar pan make sure everything lines up square may find necessary use small shims between spar pan order obtain desired location wing aligmnent incidence January1987 73 ne two-piece cowi ne engine nas uniflow ram intaketube sealed tothe cowl rubber grommet Lenzen counterbalance spinner needle valve has shortened facilitate engine removal disturbing flight adjusted setting suction-only fuel feed system has proven very reliable Note position overflow tube tank pressurizing purposes quick-link pushrod connector set root fillet pan 010m wing skin slips over fillet ng fillet can set exact root angle attack Using wing correct twist carve 090-in positive inci dence root pan Wing Making aluminum wings very simple once youve tried think youll agree quickest easiest form wing can make material ALCLAD 2024 T3 thickness 010 Speed fliers find material aircraft surplus stores around airports service work cost outlets quite reasonable sheet 3 x 10 ft will build airplanes Determine grain material first can seen brushed effect material possesses after being rolled mill sure lay out wing grain running leading edge trailing edge Otherwise wing will split being folded Use spray-type layout dye aluminum surface mark pattern carefully scribe Cut wing No 11 X-Acto blade scoring aluminum skin three four times necessary cut right through material will break off very cleanly bent slightly achieve airfoil section must first bend material flat sheet metal brake Failing can clamp between two pieces 2-in angle iron clamped large vise use third piece straight angle iron bend 900 Remove vise carefully bend flat workbench using couple planks -in plywood Try flatten fold around 6 nice sharp leading edge Open up 30 using couple pieces sheet metal making sure straight true ______ 5/3 STABILIZER DIHEDRAL SKID 7-34 TA ILS K ID 7K51/2 21/4C - STAB 3/1K SO HARDWOOD-C VI HARY BALSA STAB STIFFEN BY RUBBING K B POLYESTER INTO GRAIN COVER WITH 2 07 FIBERGLASS CLOTH P2 ROSSII OR TUNED PIPE --4 \ 047 COWL ALIGNMENT PINS -lFi S-D2 TIE-DOWN BOLTS L/IK PLY TANKI SHIELDCIi II 1W ROSSI IS MK III I ENGINE L i 1 REMOVABLE COWL I CARVED FROM BISS BLOCK 1-1/21-1/4 9CUSTC*4 2BO AWM VENTURI L4 ALUM TUBE /1HEASPIPE COOLER OZUS I/B COOLING SLOT SIDE VIEW DSK CF PROPELLER 0I2345B Rough up inside bonding surface wing ooarse sandpaper bond Goodyear Pliobond Clamp wing between two pieces 1-in angle iron good-sized vise Align carefully until get desired airfoil section slight washin effect Clamp last /16 trailing edge get true symmetrical airfoil no polywog Clamp full length wing small C-clamps spaced 6 bake 3500 oven hour half An alternate method ofbondingthewingistouse 3M 2216 gray epoxy clamp same manner Use little possible weight will build up quickly Belicrank Cut out bellcrank piece 030 CRS shown draw ing sure bush holes brass tubing Cut slot boss provided Lenzen pan accept bellcrank crank anchored 4-40 flathead Allen screw tapped pan make smooth bearing surface bellcrank run some solder approximately 080-in over threads come contact bushing 74 Model Aviation authors Rossi features modified needle valve custom-shaped 265-in alumi num venturi custom speed pan available Jurgen Lenzen West Germany bellcrank resides beneath fuel tank Two mounting studs hold tank place Full-Size Plans Available. See Page 180 FRONT VIEW 5-56 1/4 BUTTONHEAD WING RET SCREWS S8 oR~LDRAM-FILL T VIEW RAME- 43/IS A FR I/G HITH METALkILW I/R4I4V8 TOP VIEWSIDE VIEW FUEL TANK DETAIL BUILD FROM 006 TIN FILE IN TOOMODIFIED SCREWORIVER NOED FLAT 070 CUT EEDLETOI070 SLOT NEEDLE VALVE MOOS S/IA BIL SILVER SOLDER TOOl-WOO RUTS-I FOI9MED -S/4 oS/B L52 BRASS PUSHMOD SUITES ITYPI 3D OCOCK LINK SASS EM BLY 0235 CLIP ASSY PRATHER 4OBO C/IA PLYNDOO TAKF-OF flOLLY Ho-oH SIDE VIEW FUEL4-40 BELLCRANI BOLT FU00ROO SHIELDTAP 1004 v4-2BLOCATION PORTIONBELLCRANK 030 CRSD -D 6-32 TANK MCUNTING STUD -1/10 PLYWOFIU E -E N 0 GJBAO TA IWO EEL 10-S/A---COVER ALL WIRE IN CONTACT MED SIZE__SILICONE TURING SCALE I/S SIZE II/R MUSIC WIRE N-I/A TO MODELWIRE 01-1/2SAAPE FRONT B REAO 3/30 TAILTRAFCRACCES TO SUIT MOSEL WIRE ____2-3/4 OUBRO S/I/U SOLDER WASHERS ROTH SIDES FRONT VIEW F-IF-2010 2024 ALUM WIND PANEL 1 TANK MOUNT_________AVAIL FROM SACKETT PRODUCTS SSBOO 02294 BURNOOT BC CANADA VSC -SF7 PANEL DIM 3s 3/4o ST-I/B LA Do5/4 VASS MONOLINE 30K UP BUTTONS TOP VIEW SPAR FORMED FROM 3/B -6061 TO ROUND STOCK THREADED TO PAN LEADOUT GUIDES FROM FLATTENED I/H BRASS TUBE SIDEWINOER PAN AVAILABLE 3URGEN LENZEN ALFRED-TOBBERT 575600 WUPPERTAL 2 W GERMANY 1/16 PLY PIPE/TANK SHIELD N SLEEVES GASS TUBING - A-A ______________ CUT BACK WING FILLET TO ACHIEVE CMENSION U-S/A 025 3/0 __ -045 II-236 WITSIF 035 DIAz-F-F TAILS KID REPLACEABE 078VOW OF PAN SlIOSRISO POSITIVE WIRE SKIDREID GMENSIONS-WINN 0 ROILT MODEL AVIATION EAI C/L SPEED WIND SPAN37DESIGNED B DRAWN BT WING AREA 716950 INCHRIS SACKETT STAB AREA2BBBSO INTRACING BY LENGTH19JOE DEMARCO WEIGHT20 TO21 OZ CANADIAN NATiONAL RECORD HOLDEI9 Cut out exit holes pan wing fillet area control lines lines attached using small Monoline buttons hooked up 047-in lead-outs see drawing Finally drill tap two 632 holes tank mount Finish shaping pan externally until get exact shape want lap engine mount surface some emery paper oil plate sheet glass Square mating surfaces true up much models favorable flying char acteristics will depend upon alignment entire model based around basswood crutch great care should taken get stab mount ing surface square thrust line Start laying out centerline both sides Ys-in crutch work solely reference line Beginning square edge locate cut stab mount area should sit 70 dihedral angle h-in below centerline crutch Its easier keep everything aligned work table saw can cut hand youre accurate Lay pan crutch centering Continued page 166 January 1987 75 variety slnglebiade carbon fiber props Lenzen counterweights Props ob tained varlousspeciaiity manufacturers theones range pitchfrom 54to59 Bought Colored Fuel Line YOU DEFINITELY PAID TOO MUCH Pay Fancy Colors ON ENGINE DETERMINES REQUIRED TUBING DIAMETER EXTRA LARGE 125 iD 250 001 SH-616 2FTPKG $135 SII-661 2$ FT ROLL $1325 LARGE 093 10- 215 GD SH-2901 FT PEG$ 89 SH-646 2 FT PKG 111$ SN-291 2$ FT ROLL $1295 MEDIUM 062 ID- 156 ODl 54-2851 FT PKG$ 90 SH-545 2 FT PKG $110 SN 28925FT ROLL. $1195 FUEL FITTING SIZE * Heat-Proof will melt resting dIrectly hotteSt part running model engine Wont Harden Fuelil'~ 9111 Resistant Cuts TearsNOT FOR GASOLINE Sig first introduce silicone fuel line tubing model aviation market way back 1964 premium tubing still comes its original natural white color Some competitors would have believe ad ding blue red yellow dye tubing charging higher price makes product better dont believe Sigs original silicone fuel tubing has important characteristics need quality fuel line None Better Any Price OR COLOR See dealer first available order direct Call 800-247-5003 toll free orders Latest Catalog $300 SIG MANUFACTURING CO INCMontezuma IA 50171 Say8 th8t old TinierjtGI st 550115 Gte1W$OflFrom this. peEt VtUQ. 1-eES TaOtS Mole 4 Ignition Engine Parts Only Over 600 items Send $200 current catalog performances Championships showed aeromodeling sport can unite competitors countries no matter good individual may perform love talking about model airplanes should also remembered dont go wont learn learning essential part improv ing performance contestants finished following order best speed kilometers per hour listed 1 Kalmikov USSR29363 2 Piskalev USSR28800 3 Mult Hungary 287534 Dodge USA28639 5 Choj nacki Poland28639 6 Szegadi Hungary 285267 KohaniukUSSR28191 8 Molnar Hungary28059 9 Rachwal Po land27993 10 Schuette USA27734 11 Novakowski Poland27522 12 Ding PRC27231 13 Zhu PRC27231 14 HalmanUK27 149 15 LiPRC 27027 16 Assen Bulgaria26905 17 Kabakov Bulgaria26745 18 Kales Yugo slavia26548 19 Bianchi Brazil26 181 20 Matilainin Finland25714 21 Schmidt FRG25622 22 Hrustanovic Yugo slavia255 34 23 Hiern Australia25495 24 Rosenhan FRG25263 25 Magne France25 174 26 Brewin UK25 122 27 Bilat Switzerland24879 28 Borovac Yugoslavia2481O 29 Borer Switzerland 2474230 Bontcev Bulgaria24590 31 Metkemeyer Netherlands245 2332 New ton USA24406 33 McGalddery UK 2435734 Bertin Brazil24324 35 Fall gren Sweden24096 36 Christen Switzer land23952 37 Rietbergen Netherlands 23952 38 Kjelberg Sweden23809 39 Valo Finland23560 40 Wake Australia Great Planes Big Stiks offer quality ease r assembly superior flighf characteristics never before available stik style models Features include notched interlocking die machine-cut balsa plywood parts fast accurate construc tion hardware Additional hardware included either tricycle talidragger configuration Three versions available 53 span 20 size 59 span 40 size 60 size require 4-channel radio Available al KATPIAftIIi Leading Dealers ~JELE Nalionwide P0 5ov721 U va IL 61801- 23047 41 Fagerstrom Finland22929 42 Hanting Australia22332 43 Pinho Brazil0 Thanks once again David Brewin member UK Speed team report Gene Hempel 301 N Yale Dr Garland TX 75042 CL Racing/Ballard Continued page 70 fiberglass/epoxy prop means epoxy curing agent mixture improper prop should sent back manufacturer refund/replacement addition inspec tion fiberglass strands blade shows minimum amount strands hub area prop will certalnly prone shrinking under heat pressure high-winding Rat engine end flying day always take props Ive used inspect front strong light see internal cracks alr bubbles may produce crack subsequent failure also look hairline cracks around bubbles locked epoxy could lead blade failure As always solicit comments ideas photos John C Ballard 10102 Kimblewick Dr Louisville KY 40223 responding advertisers mention read about ModelAviation Wi Idf ref Sackett Continued page 75 carefully taCk-glue position using few drops cyanoacrylate CyA Draw outline fuselage rough-cut toshapeNexttakeapieceoflx lx 10-in medium balsa tack-glue position tailpiece outer shape fuselage can sanded final shape leaving area re movable cowl unfinished Break assembly apart clean pan mount enginetaping up openings keep dust dirt out until shaping work completed Locate four tie-down holes drill out little oversize accommodate brass tubing glue tubes place slowdrying epoxy such Hobbypoxy 2 ensure accuracy wax tie-down bolts insert position gluing tubes Use elastic bands hold pan crutch position Let whole thing dry least 24 hours Take assembly apart use coping saw cut out center crutch outline shown drawing Decide whether wish enclose engine lugs completely fuselage cut around suggest enclose engine completely tends weaken crutch severely otherwise slight amount material will have removed lugs Rossi 15 accomplish Cut lugs back ~ia inside pan leaving enough material crutch adequate strength cowl formed blank straight-grained basswcod prefer wood cowl over fiberglass lay-up better vibration-damping strength Start cutting out engine hole diameter Ys6 larger head Use circle cutter rough-clearance inside allow cowl accept engine Rough-shape outside approximately er around shown drawing tack-glue crutch blend rest fuselage Break apart install pipe clearance inside ap proximate thickness Y32 in pipe area front should solid 166 Model Aviation FIBERGLASS COWLS 70 cowls eelpants Sig Pica Top-Flue Jesce Nosen PIlot Stafford Radials Bebrens Garmhausen W E Tech other kits plans One-piece laminated construction handlaid fiberglass strong lightweight Send SASE price list please inclpde names models interested parts br call between 9AM o PM EOT informatIon COO ordering hope hear veul FIBERGLASS 703 890-6017 iI1lept~tii Ba 530 Geodview VA 24895 possible Shape sand cooling slot venturi opening As may have noticed needle valve exits right cowlcrutch parting line So remove needle valve disassembling model needle shortened modified will covered later Stabilizer quite important build light yet very rigid stab assembly order get center gravity CG correct Select piece stiff medium-hard %6-in balsa cut shape stiffen i/u-in sq spruce hardwood Use slow-drying CyA Sand perfect symmetrical sec tion cut out elevator area elevator used original all-metal type built correctly will resist failure vibration fatigue Simply solder up frame shown plan use Sta-Brite fold over 010-in aluminum skin Cement place 3M 2216 epoxy control horn cut bit 0 30in CRS bushed 055-in pushrod Check sure height horn axle pushrod exactly /6 model may too sensitive Carefully attach elevator stab gluing i/n-in tubing ends axle slow-drying Hobbypoxy 2 sure dont glue down elevator wax areas Chapstick glue needed dry sand smooth stiffen stab couple coats thinned K&B polyester resin rubbed grain cloth Three thin coats should fine Further stiffen stab covering 2oz fiberglass cloth resin dry sand off lumps finish two coats clear resin Test-fit stab fuselage Hollow out enough material crutch allow control system work smoothly hollow tailpiece thickness rod must installed elevator attaching stab crutch Coat control areas Chapstick glue place pusbrod two-piece affair allow disassembly ship back half cut approximate length can now install two /16 ply formers two i/n x pushrod guides As shown draw ing pushrod runs close inner edge fuselage Bolt whole assembly together hand-fit pushrod its proper position Fine adjustments can made resoldering quick-links along pushrod adjusting threads Before gluing tailpiece good idea fuel-proof tail section few coats clear epoxy dry check smoothness operation system must precise little no play otherwise flying becomes erratic high speeds sloppiness fix now Carve sand pipe area like get nice smooth seat float pipe attached englne head pipe somewhat floats fuselage use two small 031-in wire hooks attached head pipe around front engine small spring way mount tuned pipe avoid bending breakage Test-fit /16-in tank shield ad justing come close possible pipe touching necessary because youll need room can get tank adjustment satisfied glue place tank shield important prevents fuel becoming heated during flight Install 055-in skids stab fuselage keep pan good alignment during hard wear tear ships receive glue four alignment tabs made /u ply Put two very front pan two rear make perfect fit like actually mold mixing up filler epoxy glue finely-chopped fiberglass cloth dabbing over tabs waxing pan can now put crutch-pan assembly together tie-down bolts dry will break apart perfect-fitting pan no play cowl mounted ship Prather DZUS clip 047-in wire hooked crutch Finish have found K&B Super poxy system works best providing tough durable fuel-proof finish begin treat bare wood surfaces reball RIC Idle-Bar Glow Plugs Long Short$1 89 Also. Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal $149 Only Swanson Associates PO Box 151 S,x 1948 Wayne NJ 07470 Remember 40 Wing 15 25 Engines Dealers ributors Welcomed Phone 703 273 9593 FLYLINE MODELS INC PO Sex 2136 Fairfax VIrgInia 22031 U 5 January 1987 167 ~----- YS Engines Parts Atlanta Kits Challenge IV Kits Hattori Pipes / Headers FAT RC Pattern Specialties PO Box 388914-248-8603 Lincoindale NY 10540 4 Classic R/C Scale TI4 SGRAT LAKES CORPORATION St tsA g0245 SANDER ADJUSTABLE TENSION HAND RFLT cAlibER MINI-STRIPSPRECISION DIE-CUT Medium Garnet SAVES TIMEREPLACEMENTFinn Garnet AND EFFORT 8165 SANDING BELTSAsstd Water Print TEE e BAR ALUMINUM EXTRUSION SANDING BLOCK tar use RUFF-STUFF Sell adhesIve sand paper Large True Surface Wee tWearOut 11 Inch 8251 Handy Use 22 Inch 8375 RUFF F ELF ADHESIVE SHEET MAKE SAN OMPER YOUR OWN SPECIAL SANDING SHAPES Easy Use Medleer Fine r Pine $39 Ho glee er drying MINIisAw $79 COMPACT 10 inch HACK SAW SAWS ANYTHING ANYWHERE Saw has rugged die-cast frame corntprtable chip-pruet plastic seal handle RecedIng nun sad ad testable B bled gives good work access Cats wood plestic metal HARDENED MUSIC WIRE extra hlades-SI$199 Add 20% postage Send 25 cotlog three coats K&B polyester sur facing resin thinned about 50-50 Spray couple coats K&B primer sand smooth spray favorite color thinned 200% get really smooth shiny look have spray very fine coats wet look really quite simple little practice can achieve out standing results Fuel system fuel system com monly used worldwide simple pure suction method Most other forms fuel delivery have inherent inconsisten cies inconsistency last thing need models fly tremendous speeds tank shown drawing must no wider /i Otherwise weight fuel centrifugal force will make difficult get engine lean enough optimum setting tubing h-in brass should cover pickup tube tank fine screen prevent air bubbles entering fuel line tank must float mounting studs totally free metal-to-metal contact pan achieve running large-size soft sili cone tubing inside 5/su-in brass tube mounting brackets using small rubber groinmets caps ends tank located adjusted using 632 aircraft nuts washers mount ing studs Make sure use grommet fill line passes through pan venturi diameter will probably determined individual model should try run large opemng possible still have enough fuel draw get off ground Start out stock Rossi unit enlarge around 280 like can increase performance adding air-collecting funnel exist ing venturi help supercharge mix enters crankcase can achieved gluing piece aluminum tubing existing venturi flange epoxy machining out bar stock Engine Wildfire built around Rossi Mark Ill engine good racing 15 will work OPS 15 good choice Cox K&B engines will fit spacious Leazen pan just fine Start rework carefully disas sembling engine inspecting parts remove bearings heat oven 300 lightly tap case bearings will fall out freely Remove casting steps main bypass areas crankcase Dremel tool polish Rossi pretty good engine out box rework should need case latest Rossi pipe-timed engines coming through revised crank liner timing figures crank should open 350 after bottom dead center close 650 after top dead center Crank work starts boring out inside diameter about 300 Radius internal areas fuel flow FLYING SCALE MODEL RIC PLANS Super Detail e Photos Instruction Sheets _ h Plans 19163 Shadowood Dr Send SASE foe listMonument CA 80132 * SCALE DOCUMENTATION * SCALE DRAWINGS MODEL PLANS PHOTOS BOOKS EPLA-TECI-I AIRPLANE CATALOGINTERNATIONAL ova ioo PAGES48500 MC KENZIE HWY S3OOVIDA OREGON 97488 Vacation 5C W0305D Handy Dissey World Kennedy Space Cester sod rent Florida 3 Bedrooms sleeps 8 Kitchen A/C Pool Tennis sod lots li/C flying Nov-May 5500 wk / June-Oct 0450 wE / sightly monthly rates also available R17 5284045 sheen w/accessorses UTNES $2795 Up PeeciStOfi Tools Book Metale StOO Cubing CAVPIELL FGLS CG 210CM SeIne Rd BpnlngflehdOtrlo 48506 513-322-5562 Mae eG MAoeees ew MOP SIIPPLID 5 For Avwson Models ANDINC III 100 W 20525I M eosd, Nan C,oOogs 01304-562 3030p j SeOfr ,,Oerfordn odqoOk,nla& o1 Ito BOX 42B5PTLANU N C28776 CARBON MAT SAMPLE 2 OR 5 OZ/SQ YD SEND $100 EACH TO AEROSPACE COMPOSITE PRODUCTS PO Box 16621 Ervine CA 92714 PSAW DIESELS Englands Finest 049 35 RJC STD Send $100 list Eric Cluttoni 913 Cedar Lane Tullahoma Tenn 37388 Ia SandSSAEoar complete ito 168 Model Aviation ERSR Padded flats curves Handy Hold Easy Us OUALITY FREE FLIGHT KITS AND SUPPLIES FOR COMPETITION AND SPORT SINCE 1975 Duster inquiriesCatalog 500 invited BLUE RIDGE MODELS. [DCO SKY DEVIL 65 Ignttnon Approxed 90 Day Warraistv - Twin Ball Bearing Crank Americas finest old-timer engine Originally designed Hassad & Havlik replica engine resonic tuning ensures continuous flow power through speed range Look out green one$ goodbye red headT&Ds replica Sky Devil 65 $279 less coil cond & plug alit lesldents add 6% sales tax ORDER DIRECT T&D RESEARCH AssoclArEs 6371 El Cajon Blvd Suite 115 San Diego CA 92115 SI FOR BROCHURE well opening counterweight area shown drawing help atom ize incoming fuel charge carefully cut eight grooves around crank hole back good idea cover crank pin small piece brass tubing protect grinding latest Rossi Mark III engines pipe-timed variety using ABC piston liner sets timing figures 1270 transfer timing 1940 exhaust ideally suited high rpm small prop alcohol-burning models FAI Speed type need to liner smooth out corners transfer boost ports little better fuel flow piston liner assemblies set up very close optimum fits right out box should no need lapping refitting connecting rod can streamlined symmetrical section improve fuel flow should done small jewelers file set using rounded files corners Finish up No 320 paper polish out ensure have good leak-proof seal between liner glowhead first lap liner top flange piece No 400 paper glass remove machine scores take old glowhead lap two together mild-cut polish achieve perfect fit Thoroughly clean parts before reassemble Its good idea scrub parts toothbrush methanol follow ultrasonic cleaner have case should clean free lint Warm up case drop bearings crank Put prop tighten up seat bearings let cool slowly test spin crank should spin freely six seven seconds come stop TDC top dead center binding occurs warm case again tap lightly small wooden block will seat bearings properly new Rossis really precise engines should experience no difficulty step Assemble rod wrist pin piston liner engine dry turn over check binds roughness go engine should feel extremely free except approximately 040 TDC liner taper cinches piston set up head clearance mark deck height TDC compare depth plugs using various shims try achieve head clearance 022 024 start withor maybe little Later flying can play dimension attain maxi mum power particular combina tion backplate used stock comes although some guys have success shimming out 040 050 aluminum spacer engine needs very little break inmaybe 10 15 minutes fast four-cycle hops Bolt 7-3V2 prop cut 6-in diameter run fast rich no pipe first 10 minutes needle holds steady try few peak runs check rpm tachometer should read figure around 27000 maybe 28000 good engine Attach Rossi No 2 pipe bring up peak take reading rpm figure should around 34000 35000 An engine will turn rpm good high 1 60s right prop An engine tachs 33000 will fly FAI ships around 158 mphvery competitive what Rossis will turn right out box wish can pass up engine modifications initial flights get feel airplane modifications later can note difference Propeller Single-blade carbon fiber some cases hardwood props have accepted standard FM Speed flying since found way go fast alcohol through high rpm number companies produce props different styles pitches Try 62-in di ameter 54 5-in pitch best results Mark III Rossi Jurgen Lenzen has copies famous world-record-holding Hungarian desigus well number own prices very reasonable about $5 Props also available Walt Perkins Bill Hughes myself Dolly Construct dolly shown note too asymmetric help balance model dolly January 1987 169 -uriumaflCe System Tar iuP PERFORMANCE K&B ENGINES AirplaneManne K&B FUELSK&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER P0KV RESIN K&B SUPER P0KV THINNER K&B SUPER P0KV PRIMER K&B SUPER FOXY PAINT K&B MIXING CUPS __ ADVANTAGE HORNET Strap yourself Americas first digital fighter Follow Hornet through design testing Come board aircraft carrier qualification weapons testing US Navy USMC Allied squadron training deployment Get Hornet handlers view cockpit move sky around See two types fighter pilots. fly Hornets wish didl! Video Running Time 45 Minutes Specify Beta VHS Send Cheque Money Order To GareexProductlonsOept T 460 Grandview Ave London Ont N6K 2T5 us canada add 5350 shp 5 non Oni Oesdenls add lOb POT $499 Inclode Visa o MC# nook den tlCa5on C Eopi5 Oaie Allow 23 weeks delivery SHIPPED DUTY FREE INTO USA ensure good tracking line tension dur ing critical takeoff period Take time build very true straight unit solder joints pre-soldered wrapped fine brass wire soldered Sta-Brite equivalent high-tempera ture solder making dolly sure slip some silicone tubing over areas come contact airplane before final assembly Flying Check model carefully make sure everything solid operating 100% two lines should double looped prevent chance ends opening up causing disaster Two-line models quite safe Monoline AMA models use very large wire diameters easy maintain safetys sake always inspect lines before flying kinks other signs wear begin approximate needle valve setting strap standard bench test prop fill tank fire up engine After slight warm-up period engine will hit pipe dramatically Adjust needle full-peak run slightly rich side shut off engine placing thumb over back pipe open needle another one-quarter turn bolt flying prop Youll ready first flight make fuel system work correctly must first understand tank position sets needle flight adjustment should make needle get setting necessary become airborne Fire up engine let warm up about 10 seconds raise nose slightly lean out pre-stage pipe Once engine picks up lower stage pipe will have enough power launch Hold elevator neutral until sufficient speed attained lift out dolly usually one-half three-quarters lap release model engine floods out rich flight move tank outboard slightly about 0/is try again until steady full-peaked run achieved engine runs lean hitting pipe off move tank inboard slightly go again small amount Wind Direction Anytime Anywhere B FLYMj SOCK 5 inches plus tails Attaches antenna mast Iclips includedi Available frequency colors IGive frequency number orderl $95 plus5&H66jj ForaignordersaddS&H$150 Calif Residents add 6% tax Jeffla Products PO Bex 484 Lake EIsInore CA 92330 fine tuning like will find optimum setting very easy come should very consistent FAT Speed tremendous challenge Just coming up good-flying airplane reliable fuel system half battle Wildfire solid good-flying ship allows concentrate other es sentials such engine propeller build model carefully follow directions shouldnt hard become competitive eventually join world class competition Give try Speed equipment suppliers/information North American Speed Society PO Box 82294 Burnaby BC V5C 5P7 Canada Topflight detailed information phases CL Speed flying Quarterly publication $1 5/year Ed Chris Sackett Jurgen Lenzen Alfred Dobbert Str 57 5600 Wuppertal 2 West Germany Speed pan Wildfire Speed model FAT single-blade props metric-size lines Sackett Products PO Box 82294 Burna BC V5C 5P7 Canada Aluminum wing panels carbon fiber props Rossi Sales America 1325 Carol Dr Memphis TN 38116 Rossi 15 MK III engines Rossi 15 tuned pipes glowheads Shadow Racing 1100 SE 28th St Ocala FL 32670 FAT single-blade propellers carbon fiber special prop-making epoxy Kelly Props PO Box 38 Western Springs IL 60558 sizes FAT single-blade props glass graphite Mall Show/Nunes Continued page 77 Ask manager tables barriers tablecloths etc available use display mall location provides materials set up take down finished mall area does provide items mentioned will have take steps locate secure items 170 Model Aviation SWEITZER ENTERPRISES KI CATALOGS PO BOX 834HILLSBORO OR 97123 PLANS----52OO RESEARcH cENTER--$250 3-VIEwS PHOTOS & MANUALS PHONE 503640-5102 i/4 SCALFOPT22 Kits WINGSPAN 901/4 GINEBASIC KIT 2- 8 Balsa fuselage wings----$ 325 DELUXE KIT Fiberglass fus balsa wing- $375 INThODUCTORY br radialPRICES engine notflPRICE INCREASES AFTER incladadEEU els 1587 ADD $ 24forNOTE $ISO deposit fullpaymentORDERS SHIPPED AIR MAIL isreqd reserveyour order 6 1986 h.
Edition: Model Aviation - 1987/01
Page Numbers: 72, 73, 74, 75, 166, 167, 168, 169, 170
U el consiruciion wcnniques aiong WlTfl Knowleoge gained prototypes place plane leading edge FAi Speed modeling MANY OF YOU will look over design ask yourselves model airplane ever came look like point asymmetric Control Line model has around since 1940s never gained popularity until discovered much speed gained through use longer inboard wing cover up two control lines used FAI Speed Chuck Schuette current AMA FAd class record holder first utilize asymmetry caught internationally mid-70s two Hungarians took limit wings long five feet outboard asymmetric sidewinder model now known much complicated build conventional AMA-style Speed model else being equal offers three four mph advantage understand FAI Speed mod els have evolved exotic creations today might helpful review brief history event first Canadian national record holder attests just much form follows func tion comes streamlined shape FAI Control Line Speed plane Chris Sackett Control Line Speed World Championships held 1955 Croix de Berny just few miles outside Paris rather loose affair no official team US airplanes very small high wing loading creations typical AMA ships early SOs fuel unlimited line diameter fortwo lines 25mm Jozef Sladky Czech oslovakia won event 1113mph using own engine Editor AMA files show CL Speed World Champs history bit different being 1954 World Championships Hague Netherlands 1954 contest two Speed classes 5cc 25cc Bob Lutker US won 5cc class second attempt World Championships Czechoslovakia 1957 EditorReallyafourth 1956 Speed World Championships Florence Italy team trials held US models proxy flown con testants could agree models never sent until 1960 World Championships staged full US team time 72 Model Aviation specific wing loading requirements still unlimited fuel Monoline accept able although its use protested Italians Ugo Rossi Italy won event actually whipping model narrow ly beat 2nd-place finisher Bill Wisniewski 146 142 mph first time models FAI size 7747 sq minimum used 1962 meeting Kiev straight fuel combination methanol castor oil first introduced Chuck Schuette fathers asymmetric sidewinder designs attended US team member conventional symmetrical mod el flew asymmetric backup ship practice may have Euro peans first sight design sub sequent World Champs kinds asym metric designs turned upeither upright semi-asymmetric true dog leg inboard full asymmetric Californians Chuck Schuette Arnold Nelson Bob Spahr among others used inboard design number European speedsters notably Italians playing outboard layout plan pan inside engine head outside flying concept classes Speed including 10cc class basic design almost universally accepted now competing nations FAI Speed except US team members continue use inboard version prime reasons utilizing outboard setup enable modeler use pure suction fuel feed system pan inside makes room large hard tank inside centerline venturi engine can have richer mix during flightsomewhat like having mild form pressure system simple reliable model becomes airborne quite easily first decided design model borrowed lot ideas came up some own hoping best worlds wanted long inboard asym metric wing outboard fully asymmetric layout model clean could expected slim fuselage enclosed pipe two-piece shell easy main tenance As designing model Jurgen Lenzen West German FAI flier just made available perfect sidewinder speed pan integrated wing stub based final design around pan speed pan available Jurgen Lenzen Alfred-Dobbert Str 57 5600 Wuppertal 2 West Germany Twen ty US dollars will bring right door wing can obtained Sackett Products PO Box 82294 North Burnaby BC V5C 5P7 price $30 US Rossi MK III available Rossi Sales America 1325 Carol Dr Memphis TN 38116 speed pan Take exact dimension front pan leading edge wing set up speed pan carefully stock pan comes root chord too wide leading edge fillet must cut back accom modate 3-in -wide wing dimension leading edge backplate spinner must 3 will have grind inside pan carefully provide clearance Rossi 15 get right location Once satis fied spray some blue layout dye mark holes scribe center punch drill tap 4-40 bolts Make up aug hold pan 900 drilling make sure dont drill through casting must work utmost accuracy sloppiness drilling may give up downthrust engine next step installation spar control system spar formed piece -in aluminum bar stock can found metal shops Type 7075 nice necessary original built piece soft aluminum working just fine Cut piece 25 taper 2 tip Notice necessary spar extend full length material can tapered lathe simply filed hand flat top bottom spar attached pan tapping threading -28 tapping pan use ajig drill press assure accuracy Test-fit spar pan make sure everything lines up square may find necessary use small shims between spar pan order obtain desired location wing aligmnent incidence January1987 73 ne two-piece cowi ne engine nas uniflow ram intaketube sealed tothe cowl rubber grommet Lenzen counterbalance spinner needle valve has shortened facilitate engine removal disturbing flight adjusted setting suction-only fuel feed system has proven very reliable Note position overflow tube tank pressurizing purposes quick-link pushrod connector set root fillet pan 010m wing skin slips over fillet ng fillet can set exact root angle attack Using wing correct twist carve 090-in positive inci dence root pan Wing Making aluminum wings very simple once youve tried think youll agree quickest easiest form wing can make material ALCLAD 2024 T3 thickness 010 Speed fliers find material aircraft surplus stores around airports service work cost outlets quite reasonable sheet 3 x 10 ft will build airplanes Determine grain material first can seen brushed effect material possesses after being rolled mill sure lay out wing grain running leading edge trailing edge Otherwise wing will split being folded Use spray-type layout dye aluminum surface mark pattern carefully scribe Cut wing No 11 X-Acto blade scoring aluminum skin three four times necessary cut right through material will break off very cleanly bent slightly achieve airfoil section must first bend material flat sheet metal brake Failing can clamp between two pieces 2-in angle iron clamped large vise use third piece straight angle iron bend 900 Remove vise carefully bend flat workbench using couple planks -in plywood Try flatten fold around 6 nice sharp leading edge Open up 30 using couple pieces sheet metal making sure straight true ______ 5/3 STABILIZER DIHEDRAL SKID 7-34 TA ILS K ID 7K51/2 21/4C - STAB 3/1K SO HARDWOOD-C VI HARY BALSA STAB STIFFEN BY RUBBING K B POLYESTER INTO GRAIN COVER WITH 2 07 FIBERGLASS CLOTH P2 ROSSII OR TUNED PIPE --4 \ 047 COWL ALIGNMENT PINS -lFi S-D2 TIE-DOWN BOLTS L/IK PLY TANKI SHIELDCIi II 1W ROSSI IS MK III I ENGINE L i 1 REMOVABLE COWL I CARVED FROM BISS BLOCK 1-1/21-1/4 9CUSTC*4 2BO AWM VENTURI L4 ALUM TUBE /1HEASPIPE COOLER OZUS I/B COOLING SLOT SIDE VIEW DSK CF PROPELLER 0I2345B Rough up inside bonding surface wing ooarse sandpaper bond Goodyear Pliobond Clamp wing between two pieces 1-in angle iron good-sized vise Align carefully until get desired airfoil section slight washin effect Clamp last /16 trailing edge get true symmetrical airfoil no polywog Clamp full length wing small C-clamps spaced 6 bake 3500 oven hour half An alternate method ofbondingthewingistouse 3M 2216 gray epoxy clamp same manner Use little possible weight will build up quickly Belicrank Cut out bellcrank piece 030 CRS shown draw ing sure bush holes brass tubing Cut slot boss provided Lenzen pan accept bellcrank crank anchored 4-40 flathead Allen screw tapped pan make smooth bearing surface bellcrank run some solder approximately 080-in over threads come contact bushing 74 Model Aviation authors Rossi features modified needle valve custom-shaped 265-in alumi num venturi custom speed pan available Jurgen Lenzen West Germany bellcrank resides beneath fuel tank Two mounting studs hold tank place Full-Size Plans Available. See Page 180 FRONT VIEW 5-56 1/4 BUTTONHEAD WING RET SCREWS S8 oR~LDRAM-FILL T VIEW RAME- 43/IS A FR I/G HITH METALkILW I/R4I4V8 TOP VIEWSIDE VIEW FUEL TANK DETAIL BUILD FROM 006 TIN FILE IN TOOMODIFIED SCREWORIVER NOED FLAT 070 CUT EEDLETOI070 SLOT NEEDLE VALVE MOOS S/IA BIL SILVER SOLDER TOOl-WOO RUTS-I FOI9MED -S/4 oS/B L52 BRASS PUSHMOD SUITES ITYPI 3D OCOCK LINK SASS EM BLY 0235 CLIP ASSY PRATHER 4OBO C/IA PLYNDOO TAKF-OF flOLLY Ho-oH SIDE VIEW FUEL4-40 BELLCRANI BOLT FU00ROO SHIELDTAP 1004 v4-2BLOCATION PORTIONBELLCRANK 030 CRSD -D 6-32 TANK MCUNTING STUD -1/10 PLYWOFIU E -E N 0 GJBAO TA IWO EEL 10-S/A---COVER ALL WIRE IN CONTACT MED SIZE__SILICONE TURING SCALE I/S SIZE II/R MUSIC WIRE N-I/A TO MODELWIRE 01-1/2SAAPE FRONT B REAO 3/30 TAILTRAFCRACCES TO SUIT MOSEL WIRE ____2-3/4 OUBRO S/I/U SOLDER WASHERS ROTH SIDES FRONT VIEW F-IF-2010 2024 ALUM WIND PANEL 1 TANK MOUNT_________AVAIL FROM SACKETT PRODUCTS SSBOO 02294 BURNOOT BC CANADA VSC -SF7 PANEL DIM 3s 3/4o ST-I/B LA Do5/4 VASS MONOLINE 30K UP BUTTONS TOP VIEW SPAR FORMED FROM 3/B -6061 TO ROUND STOCK THREADED TO PAN LEADOUT GUIDES FROM FLATTENED I/H BRASS TUBE SIDEWINOER PAN AVAILABLE 3URGEN LENZEN ALFRED-TOBBERT 575600 WUPPERTAL 2 W GERMANY 1/16 PLY PIPE/TANK SHIELD N SLEEVES GASS TUBING - A-A ______________ CUT BACK WING FILLET TO ACHIEVE CMENSION U-S/A 025 3/0 __ -045 II-236 WITSIF 035 DIAz-F-F TAILS KID REPLACEABE 078VOW OF PAN SlIOSRISO POSITIVE WIRE SKIDREID GMENSIONS-WINN 0 ROILT MODEL AVIATION EAI C/L SPEED WIND SPAN37DESIGNED B DRAWN BT WING AREA 716950 INCHRIS SACKETT STAB AREA2BBBSO INTRACING BY LENGTH19JOE DEMARCO WEIGHT20 TO21 OZ CANADIAN NATiONAL RECORD HOLDEI9 Cut out exit holes pan wing fillet area control lines lines attached using small Monoline buttons hooked up 047-in lead-outs see drawing Finally drill tap two 632 holes tank mount Finish shaping pan externally until get exact shape want lap engine mount surface some emery paper oil plate sheet glass Square mating surfaces true up much models favorable flying char acteristics will depend upon alignment entire model based around basswood crutch great care should taken get stab mount ing surface square thrust line Start laying out centerline both sides Ys-in crutch work solely reference line Beginning square edge locate cut stab mount area should sit 70 dihedral angle h-in below centerline crutch Its easier keep everything aligned work table saw can cut hand youre accurate Lay pan crutch centering Continued page 166 January 1987 75 variety slnglebiade carbon fiber props Lenzen counterweights Props ob tained varlousspeciaiity manufacturers theones range pitchfrom 54to59 Bought Colored Fuel Line YOU DEFINITELY PAID TOO MUCH Pay Fancy Colors ON ENGINE DETERMINES REQUIRED TUBING DIAMETER EXTRA LARGE 125 iD 250 001 SH-616 2FTPKG $135 SII-661 2$ FT ROLL $1325 LARGE 093 10- 215 GD SH-2901 FT PEG$ 89 SH-646 2 FT PKG 111$ SN-291 2$ FT ROLL $1295 MEDIUM 062 ID- 156 ODl 54-2851 FT PKG$ 90 SH-545 2 FT PKG $110 SN 28925FT ROLL. $1195 FUEL FITTING SIZE * Heat-Proof will melt resting dIrectly hotteSt part running model engine Wont Harden Fuelil'~ 9111 Resistant Cuts TearsNOT FOR GASOLINE Sig first introduce silicone fuel line tubing model aviation market way back 1964 premium tubing still comes its original natural white color Some competitors would have believe ad ding blue red yellow dye tubing charging higher price makes product better dont believe Sigs original silicone fuel tubing has important characteristics need quality fuel line None Better Any Price OR COLOR See dealer first available order direct Call 800-247-5003 toll free orders Latest Catalog $300 SIG MANUFACTURING CO INCMontezuma IA 50171 Say8 th8t old TinierjtGI st 550115 Gte1W$OflFrom this. peEt VtUQ. 1-eES TaOtS Mole 4 Ignition Engine Parts Only Over 600 items Send $200 current catalog performances Championships showed aeromodeling sport can unite competitors countries no matter good individual may perform love talking about model airplanes should also remembered dont go wont learn learning essential part improv ing performance contestants finished following order best speed kilometers per hour listed 1 Kalmikov USSR29363 2 Piskalev USSR28800 3 Mult Hungary 287534 Dodge USA28639 5 Choj nacki Poland28639 6 Szegadi Hungary 285267 KohaniukUSSR28191 8 Molnar Hungary28059 9 Rachwal Po land27993 10 Schuette USA27734 11 Novakowski Poland27522 12 Ding PRC27231 13 Zhu PRC27231 14 HalmanUK27 149 15 LiPRC 27027 16 Assen Bulgaria26905 17 Kabakov Bulgaria26745 18 Kales Yugo slavia26548 19 Bianchi Brazil26 181 20 Matilainin Finland25714 21 Schmidt FRG25622 22 Hrustanovic Yugo slavia255 34 23 Hiern Australia25495 24 Rosenhan FRG25263 25 Magne France25 174 26 Brewin UK25 122 27 Bilat Switzerland24879 28 Borovac Yugoslavia2481O 29 Borer Switzerland 2474230 Bontcev Bulgaria24590 31 Metkemeyer Netherlands245 2332 New ton USA24406 33 McGalddery UK 2435734 Bertin Brazil24324 35 Fall gren Sweden24096 36 Christen Switzer land23952 37 Rietbergen Netherlands 23952 38 Kjelberg Sweden23809 39 Valo Finland23560 40 Wake Australia Great Planes Big Stiks offer quality ease r assembly superior flighf characteristics never before available stik style models Features include notched interlocking die machine-cut balsa plywood parts fast accurate construc tion hardware Additional hardware included either tricycle talidragger configuration Three versions available 53 span 20 size 59 span 40 size 60 size require 4-channel radio Available al KATPIAftIIi Leading Dealers ~JELE Nalionwide P0 5ov721 U va IL 61801- 23047 41 Fagerstrom Finland22929 42 Hanting Australia22332 43 Pinho Brazil0 Thanks once again David Brewin member UK Speed team report Gene Hempel 301 N Yale Dr Garland TX 75042 CL Racing/Ballard Continued page 70 fiberglass/epoxy prop means epoxy curing agent mixture improper prop should sent back manufacturer refund/replacement addition inspec tion fiberglass strands blade shows minimum amount strands hub area prop will certalnly prone shrinking under heat pressure high-winding Rat engine end flying day always take props Ive used inspect front strong light see internal cracks alr bubbles may produce crack subsequent failure also look hairline cracks around bubbles locked epoxy could lead blade failure As always solicit comments ideas photos John C Ballard 10102 Kimblewick Dr Louisville KY 40223 responding advertisers mention read about ModelAviation Wi Idf ref Sackett Continued page 75 carefully taCk-glue position using few drops cyanoacrylate CyA Draw outline fuselage rough-cut toshapeNexttakeapieceoflx lx 10-in medium balsa tack-glue position tailpiece outer shape fuselage can sanded final shape leaving area re movable cowl unfinished Break assembly apart clean pan mount enginetaping up openings keep dust dirt out until shaping work completed Locate four tie-down holes drill out little oversize accommodate brass tubing glue tubes place slowdrying epoxy such Hobbypoxy 2 ensure accuracy wax tie-down bolts insert position gluing tubes Use elastic bands hold pan crutch position Let whole thing dry least 24 hours Take assembly apart use coping saw cut out center crutch outline shown drawing Decide whether wish enclose engine lugs completely fuselage cut around suggest enclose engine completely tends weaken crutch severely otherwise slight amount material will have removed lugs Rossi 15 accomplish Cut lugs back ~ia inside pan leaving enough material crutch adequate strength cowl formed blank straight-grained basswcod prefer wood cowl over fiberglass lay-up better vibration-damping strength Start cutting out engine hole diameter Ys6 larger head Use circle cutter rough-clearance inside allow cowl accept engine Rough-shape outside approximately er around shown drawing tack-glue crutch blend rest fuselage Break apart install pipe clearance inside ap proximate thickness Y32 in pipe area front should solid 166 Model Aviation FIBERGLASS COWLS 70 cowls eelpants Sig Pica Top-Flue Jesce Nosen PIlot Stafford Radials Bebrens Garmhausen W E Tech other kits plans One-piece laminated construction handlaid fiberglass strong lightweight Send SASE price list please inclpde names models interested parts br call between 9AM o PM EOT informatIon COO ordering hope hear veul FIBERGLASS 703 890-6017 iI1lept~tii Ba 530 Geodview VA 24895 possible Shape sand cooling slot venturi opening As may have noticed needle valve exits right cowlcrutch parting line So remove needle valve disassembling model needle shortened modified will covered later Stabilizer quite important build light yet very rigid stab assembly order get center gravity CG correct Select piece stiff medium-hard %6-in balsa cut shape stiffen i/u-in sq spruce hardwood Use slow-drying CyA Sand perfect symmetrical sec tion cut out elevator area elevator used original all-metal type built correctly will resist failure vibration fatigue Simply solder up frame shown plan use Sta-Brite fold over 010-in aluminum skin Cement place 3M 2216 epoxy control horn cut bit 0 30in CRS bushed 055-in pushrod Check sure height horn axle pushrod exactly /6 model may too sensitive Carefully attach elevator stab gluing i/n-in tubing ends axle slow-drying Hobbypoxy 2 sure dont glue down elevator wax areas Chapstick glue needed dry sand smooth stiffen stab couple coats thinned K&B polyester resin rubbed grain cloth Three thin coats should fine Further stiffen stab covering 2oz fiberglass cloth resin dry sand off lumps finish two coats clear resin Test-fit stab fuselage Hollow out enough material crutch allow control system work smoothly hollow tailpiece thickness rod must installed elevator attaching stab crutch Coat control areas Chapstick glue place pusbrod two-piece affair allow disassembly ship back half cut approximate length can now install two /16 ply formers two i/n x pushrod guides As shown draw ing pushrod runs close inner edge fuselage Bolt whole assembly together hand-fit pushrod its proper position Fine adjustments can made resoldering quick-links along pushrod adjusting threads Before gluing tailpiece good idea fuel-proof tail section few coats clear epoxy dry check smoothness operation system must precise little no play otherwise flying becomes erratic high speeds sloppiness fix now Carve sand pipe area like get nice smooth seat float pipe attached englne head pipe somewhat floats fuselage use two small 031-in wire hooks attached head pipe around front engine small spring way mount tuned pipe avoid bending breakage Test-fit /16-in tank shield ad justing come close possible pipe touching necessary because youll need room can get tank adjustment satisfied glue place tank shield important prevents fuel becoming heated during flight Install 055-in skids stab fuselage keep pan good alignment during hard wear tear ships receive glue four alignment tabs made /u ply Put two very front pan two rear make perfect fit like actually mold mixing up filler epoxy glue finely-chopped fiberglass cloth dabbing over tabs waxing pan can now put crutch-pan assembly together tie-down bolts dry will break apart perfect-fitting pan no play cowl mounted ship Prather DZUS clip 047-in wire hooked crutch Finish have found K&B Super poxy system works best providing tough durable fuel-proof finish begin treat bare wood surfaces reball RIC Idle-Bar Glow Plugs Long Short$1 89 Also. Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal $149 Only Swanson Associates PO Box 151 S,x 1948 Wayne NJ 07470 Remember 40 Wing 15 25 Engines Dealers ributors Welcomed Phone 703 273 9593 FLYLINE MODELS INC PO Sex 2136 Fairfax VIrgInia 22031 U 5 January 1987 167 ~----- YS Engines Parts Atlanta Kits Challenge IV Kits Hattori Pipes / Headers FAT RC Pattern Specialties PO Box 388914-248-8603 Lincoindale NY 10540 4 Classic R/C Scale TI4 SGRAT LAKES CORPORATION St tsA g0245 SANDER ADJUSTABLE TENSION HAND RFLT cAlibER MINI-STRIPSPRECISION DIE-CUT Medium Garnet SAVES TIMEREPLACEMENTFinn Garnet AND EFFORT 8165 SANDING BELTSAsstd Water Print TEE e BAR ALUMINUM EXTRUSION SANDING BLOCK tar use RUFF-STUFF Sell adhesIve sand paper Large True Surface Wee tWearOut 11 Inch 8251 Handy Use 22 Inch 8375 RUFF F ELF ADHESIVE SHEET MAKE SAN OMPER YOUR OWN SPECIAL SANDING SHAPES Easy Use Medleer Fine r Pine $39 Ho glee er drying MINIisAw $79 COMPACT 10 inch HACK SAW SAWS ANYTHING ANYWHERE Saw has rugged die-cast frame corntprtable chip-pruet plastic seal handle RecedIng nun sad ad testable B bled gives good work access Cats wood plestic metal HARDENED MUSIC WIRE extra hlades-SI$199 Add 20% postage Send 25 cotlog three coats K&B polyester sur facing resin thinned about 50-50 Spray couple coats K&B primer sand smooth spray favorite color thinned 200% get really smooth shiny look have spray very fine coats wet look really quite simple little practice can achieve out standing results Fuel system fuel system com monly used worldwide simple pure suction method Most other forms fuel delivery have inherent inconsisten cies inconsistency last thing need models fly tremendous speeds tank shown drawing must no wider /i Otherwise weight fuel centrifugal force will make difficult get engine lean enough optimum setting tubing h-in brass should cover pickup tube tank fine screen prevent air bubbles entering fuel line tank must float mounting studs totally free metal-to-metal contact pan achieve running large-size soft sili cone tubing inside 5/su-in brass tube mounting brackets using small rubber groinmets caps ends tank located adjusted using 632 aircraft nuts washers mount ing studs Make sure use grommet fill line passes through pan venturi diameter will probably determined individual model should try run large opemng possible still have enough fuel draw get off ground Start out stock Rossi unit enlarge around 280 like can increase performance adding air-collecting funnel exist ing venturi help supercharge mix enters crankcase can achieved gluing piece aluminum tubing existing venturi flange epoxy machining out bar stock Engine Wildfire built around Rossi Mark Ill engine good racing 15 will work OPS 15 good choice Cox K&B engines will fit spacious Leazen pan just fine Start rework carefully disas sembling engine inspecting parts remove bearings heat oven 300 lightly tap case bearings will fall out freely Remove casting steps main bypass areas crankcase Dremel tool polish Rossi pretty good engine out box rework should need case latest Rossi pipe-timed engines coming through revised crank liner timing figures crank should open 350 after bottom dead center close 650 after top dead center Crank work starts boring out inside diameter about 300 Radius internal areas fuel flow FLYING SCALE MODEL RIC PLANS Super Detail e Photos Instruction Sheets _ h Plans 19163 Shadowood Dr Send SASE foe listMonument CA 80132 * SCALE DOCUMENTATION * SCALE DRAWINGS MODEL PLANS PHOTOS BOOKS EPLA-TECI-I AIRPLANE CATALOGINTERNATIONAL ova ioo PAGES48500 MC KENZIE HWY S3OOVIDA OREGON 97488 Vacation 5C W0305D Handy Dissey World Kennedy Space Cester sod rent Florida 3 Bedrooms sleeps 8 Kitchen A/C Pool Tennis sod lots li/C flying Nov-May 5500 wk / June-Oct 0450 wE / sightly monthly rates also available R17 5284045 sheen w/accessorses UTNES $2795 Up PeeciStOfi Tools Book Metale StOO Cubing CAVPIELL FGLS CG 210CM SeIne Rd BpnlngflehdOtrlo 48506 513-322-5562 Mae eG MAoeees ew MOP SIIPPLID 5 For Avwson Models ANDINC III 100 W 20525I M eosd, Nan C,oOogs 01304-562 3030p j SeOfr ,,Oerfordn odqoOk,nla& o1 Ito BOX 42B5PTLANU N C28776 CARBON MAT SAMPLE 2 OR 5 OZ/SQ YD SEND $100 EACH TO AEROSPACE COMPOSITE PRODUCTS PO Box 16621 Ervine CA 92714 PSAW DIESELS Englands Finest 049 35 RJC STD Send $100 list Eric Cluttoni 913 Cedar Lane Tullahoma Tenn 37388 Ia SandSSAEoar complete ito 168 Model Aviation ERSR Padded flats curves Handy Hold Easy Us OUALITY FREE FLIGHT KITS AND SUPPLIES FOR COMPETITION AND SPORT SINCE 1975 Duster inquiriesCatalog 500 invited BLUE RIDGE MODELS. [DCO SKY DEVIL 65 Ignttnon Approxed 90 Day Warraistv - Twin Ball Bearing Crank Americas finest old-timer engine Originally designed Hassad & Havlik replica engine resonic tuning ensures continuous flow power through speed range Look out green one$ goodbye red headT&Ds replica Sky Devil 65 $279 less coil cond & plug alit lesldents add 6% sales tax ORDER DIRECT T&D RESEARCH AssoclArEs 6371 El Cajon Blvd Suite 115 San Diego CA 92115 SI FOR BROCHURE well opening counterweight area shown drawing help atom ize incoming fuel charge carefully cut eight grooves around crank hole back good idea cover crank pin small piece brass tubing protect grinding latest Rossi Mark III engines pipe-timed variety using ABC piston liner sets timing figures 1270 transfer timing 1940 exhaust ideally suited high rpm small prop alcohol-burning models FAI Speed type need to liner smooth out corners transfer boost ports little better fuel flow piston liner assemblies set up very close optimum fits right out box should no need lapping refitting connecting rod can streamlined symmetrical section improve fuel flow should done small jewelers file set using rounded files corners Finish up No 320 paper polish out ensure have good leak-proof seal between liner glowhead first lap liner top flange piece No 400 paper glass remove machine scores take old glowhead lap two together mild-cut polish achieve perfect fit Thoroughly clean parts before reassemble Its good idea scrub parts toothbrush methanol follow ultrasonic cleaner have case should clean free lint Warm up case drop bearings crank Put prop tighten up seat bearings let cool slowly test spin crank should spin freely six seven seconds come stop TDC top dead center binding occurs warm case again tap lightly small wooden block will seat bearings properly new Rossis really precise engines should experience no difficulty step Assemble rod wrist pin piston liner engine dry turn over check binds roughness go engine should feel extremely free except approximately 040 TDC liner taper cinches piston set up head clearance mark deck height TDC compare depth plugs using various shims try achieve head clearance 022 024 start withor maybe little Later flying can play dimension attain maxi mum power particular combina tion backplate used stock comes although some guys have success shimming out 040 050 aluminum spacer engine needs very little break inmaybe 10 15 minutes fast four-cycle hops Bolt 7-3V2 prop cut 6-in diameter run fast rich no pipe first 10 minutes needle holds steady try few peak runs check rpm tachometer should read figure around 27000 maybe 28000 good engine Attach Rossi No 2 pipe bring up peak take reading rpm figure should around 34000 35000 An engine will turn rpm good high 1 60s right prop An engine tachs 33000 will fly FAI ships around 158 mphvery competitive what Rossis will turn right out box wish can pass up engine modifications initial flights get feel airplane modifications later can note difference Propeller Single-blade carbon fiber some cases hardwood props have accepted standard FM Speed flying since found way go fast alcohol through high rpm number companies produce props different styles pitches Try 62-in di ameter 54 5-in pitch best results Mark III Rossi Jurgen Lenzen has copies famous world-record-holding Hungarian desigus well number own prices very reasonable about $5 Props also available Walt Perkins Bill Hughes myself Dolly Construct dolly shown note too asymmetric help balance model dolly January 1987 169 -uriumaflCe System Tar iuP PERFORMANCE K&B ENGINES AirplaneManne K&B FUELSK&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER P0KV RESIN K&B SUPER P0KV THINNER K&B SUPER P0KV PRIMER K&B SUPER FOXY PAINT K&B MIXING CUPS __ ADVANTAGE HORNET Strap yourself Americas first digital fighter Follow Hornet through design testing Come board aircraft carrier qualification weapons testing US Navy USMC Allied squadron training deployment Get Hornet handlers view cockpit move sky around See two types fighter pilots. fly Hornets wish didl! Video Running Time 45 Minutes Specify Beta VHS Send Cheque Money Order To GareexProductlonsOept T 460 Grandview Ave London Ont N6K 2T5 us canada add 5350 shp 5 non Oni Oesdenls add lOb POT $499 Inclode Visa o MC# nook den tlCa5on C Eopi5 Oaie Allow 23 weeks delivery SHIPPED DUTY FREE INTO USA ensure good tracking line tension dur ing critical takeoff period Take time build very true straight unit solder joints pre-soldered wrapped fine brass wire soldered Sta-Brite equivalent high-tempera ture solder making dolly sure slip some silicone tubing over areas come contact airplane before final assembly Flying Check model carefully make sure everything solid operating 100% two lines should double looped prevent chance ends opening up causing disaster Two-line models quite safe Monoline AMA models use very large wire diameters easy maintain safetys sake always inspect lines before flying kinks other signs wear begin approximate needle valve setting strap standard bench test prop fill tank fire up engine After slight warm-up period engine will hit pipe dramatically Adjust needle full-peak run slightly rich side shut off engine placing thumb over back pipe open needle another one-quarter turn bolt flying prop Youll ready first flight make fuel system work correctly must first understand tank position sets needle flight adjustment should make needle get setting necessary become airborne Fire up engine let warm up about 10 seconds raise nose slightly lean out pre-stage pipe Once engine picks up lower stage pipe will have enough power launch Hold elevator neutral until sufficient speed attained lift out dolly usually one-half three-quarters lap release model engine floods out rich flight move tank outboard slightly about 0/is try again until steady full-peaked run achieved engine runs lean hitting pipe off move tank inboard slightly go again small amount Wind Direction Anytime Anywhere B FLYMj SOCK 5 inches plus tails Attaches antenna mast Iclips includedi Available frequency colors IGive frequency number orderl $95 plus5&H66jj ForaignordersaddS&H$150 Calif Residents add 6% tax Jeffla Products PO Bex 484 Lake EIsInore CA 92330 fine tuning like will find optimum setting very easy come should very consistent FAT Speed tremendous challenge Just coming up good-flying airplane reliable fuel system half battle Wildfire solid good-flying ship allows concentrate other es sentials such engine propeller build model carefully follow directions shouldnt hard become competitive eventually join world class competition Give try Speed equipment suppliers/information North American Speed Society PO Box 82294 Burnaby BC V5C 5P7 Canada Topflight detailed information phases CL Speed flying Quarterly publication $1 5/year Ed Chris Sackett Jurgen Lenzen Alfred Dobbert Str 57 5600 Wuppertal 2 West Germany Speed pan Wildfire Speed model FAT single-blade props metric-size lines Sackett Products PO Box 82294 Burna BC V5C 5P7 Canada Aluminum wing panels carbon fiber props Rossi Sales America 1325 Carol Dr Memphis TN 38116 Rossi 15 MK III engines Rossi 15 tuned pipes glowheads Shadow Racing 1100 SE 28th St Ocala FL 32670 FAT single-blade propellers carbon fiber special prop-making epoxy Kelly Props PO Box 38 Western Springs IL 60558 sizes FAT single-blade props glass graphite Mall Show/Nunes Continued page 77 Ask manager tables barriers tablecloths etc available use display mall location provides materials set up take down finished mall area does provide items mentioned will have take steps locate secure items 170 Model Aviation SWEITZER ENTERPRISES KI CATALOGS PO BOX 834HILLSBORO OR 97123 PLANS----52OO RESEARcH cENTER--$250 3-VIEwS PHOTOS & MANUALS PHONE 503640-5102 i/4 SCALFOPT22 Kits WINGSPAN 901/4 GINEBASIC KIT 2- 8 Balsa fuselage wings----$ 325 DELUXE KIT Fiberglass fus balsa wing- $375 INThODUCTORY br radialPRICES engine notflPRICE INCREASES AFTER incladadEEU els 1587 ADD $ 24forNOTE $ISO deposit fullpaymentORDERS SHIPPED AIR MAIL isreqd reserveyour order 6 1986 h.
Edition: Model Aviation - 1987/01
Page Numbers: 72, 73, 74, 75, 166, 167, 168, 169, 170
U el consiruciion wcnniques aiong WlTfl Knowleoge gained prototypes place plane leading edge FAi Speed modeling MANY OF YOU will look over design ask yourselves model airplane ever came look like point asymmetric Control Line model has around since 1940s never gained popularity until discovered much speed gained through use longer inboard wing cover up two control lines used FAI Speed Chuck Schuette current AMA FAd class record holder first utilize asymmetry caught internationally mid-70s two Hungarians took limit wings long five feet outboard asymmetric sidewinder model now known much complicated build conventional AMA-style Speed model else being equal offers three four mph advantage understand FAI Speed mod els have evolved exotic creations today might helpful review brief history event first Canadian national record holder attests just much form follows func tion comes streamlined shape FAI Control Line Speed plane Chris Sackett Control Line Speed World Championships held 1955 Croix de Berny just few miles outside Paris rather loose affair no official team US airplanes very small high wing loading creations typical AMA ships early SOs fuel unlimited line diameter fortwo lines 25mm Jozef Sladky Czech oslovakia won event 1113mph using own engine Editor AMA files show CL Speed World Champs history bit different being 1954 World Championships Hague Netherlands 1954 contest two Speed classes 5cc 25cc Bob Lutker US won 5cc class second attempt World Championships Czechoslovakia 1957 EditorReallyafourth 1956 Speed World Championships Florence Italy team trials held US models proxy flown con testants could agree models never sent until 1960 World Championships staged full US team time 72 Model Aviation specific wing loading requirements still unlimited fuel Monoline accept able although its use protested Italians Ugo Rossi Italy won event actually whipping model narrow ly beat 2nd-place finisher Bill Wisniewski 146 142 mph first time models FAI size 7747 sq minimum used 1962 meeting Kiev straight fuel combination methanol castor oil first introduced Chuck Schuette fathers asymmetric sidewinder designs attended US team member conventional symmetrical mod el flew asymmetric backup ship practice may have Euro peans first sight design sub sequent World Champs kinds asym metric designs turned upeither upright semi-asymmetric true dog leg inboard full asymmetric Californians Chuck Schuette Arnold Nelson Bob Spahr among others used inboard design number European speedsters notably Italians playing outboard layout plan pan inside engine head outside flying concept classes Speed including 10cc class basic design almost universally accepted now competing nations FAI Speed except US team members continue use inboard version prime reasons utilizing outboard setup enable modeler use pure suction fuel feed system pan inside makes room large hard tank inside centerline venturi engine can have richer mix during flightsomewhat like having mild form pressure system simple reliable model becomes airborne quite easily first decided design model borrowed lot ideas came up some own hoping best worlds wanted long inboard asym metric wing outboard fully asymmetric layout model clean could expected slim fuselage enclosed pipe two-piece shell easy main tenance As designing model Jurgen Lenzen West German FAI flier just made available perfect sidewinder speed pan integrated wing stub based final design around pan speed pan available Jurgen Lenzen Alfred-Dobbert Str 57 5600 Wuppertal 2 West Germany Twen ty US dollars will bring right door wing can obtained Sackett Products PO Box 82294 North Burnaby BC V5C 5P7 price $30 US Rossi MK III available Rossi Sales America 1325 Carol Dr Memphis TN 38116 speed pan Take exact dimension front pan leading edge wing set up speed pan carefully stock pan comes root chord too wide leading edge fillet must cut back accom modate 3-in -wide wing dimension leading edge backplate spinner must 3 will have grind inside pan carefully provide clearance Rossi 15 get right location Once satis fied spray some blue layout dye mark holes scribe center punch drill tap 4-40 bolts Make up aug hold pan 900 drilling make sure dont drill through casting must work utmost accuracy sloppiness drilling may give up downthrust engine next step installation spar control system spar formed piece -in aluminum bar stock can found metal shops Type 7075 nice necessary original built piece soft aluminum working just fine Cut piece 25 taper 2 tip Notice necessary spar extend full length material can tapered lathe simply filed hand flat top bottom spar attached pan tapping threading -28 tapping pan use ajig drill press assure accuracy Test-fit spar pan make sure everything lines up square may find necessary use small shims between spar pan order obtain desired location wing aligmnent incidence January1987 73 ne two-piece cowi ne engine nas uniflow ram intaketube sealed tothe cowl rubber grommet Lenzen counterbalance spinner needle valve has shortened facilitate engine removal disturbing flight adjusted setting suction-only fuel feed system has proven very reliable Note position overflow tube tank pressurizing purposes quick-link pushrod connector set root fillet pan 010m wing skin slips over fillet ng fillet can set exact root angle attack Using wing correct twist carve 090-in positive inci dence root pan Wing Making aluminum wings very simple once youve tried think youll agree quickest easiest form wing can make material ALCLAD 2024 T3 thickness 010 Speed fliers find material aircraft surplus stores around airports service work cost outlets quite reasonable sheet 3 x 10 ft will build airplanes Determine grain material first can seen brushed effect material possesses after being rolled mill sure lay out wing grain running leading edge trailing edge Otherwise wing will split being folded Use spray-type layout dye aluminum surface mark pattern carefully scribe Cut wing No 11 X-Acto blade scoring aluminum skin three four times necessary cut right through material will break off very cleanly bent slightly achieve airfoil section must first bend material flat sheet metal brake Failing can clamp between two pieces 2-in angle iron clamped large vise use third piece straight angle iron bend 900 Remove vise carefully bend flat workbench using couple planks -in plywood Try flatten fold around 6 nice sharp leading edge Open up 30 using couple pieces sheet metal making sure straight true ______ 5/3 STABILIZER DIHEDRAL SKID 7-34 TA ILS K ID 7K51/2 21/4C - STAB 3/1K SO HARDWOOD-C VI HARY BALSA STAB STIFFEN BY RUBBING K B POLYESTER INTO GRAIN COVER WITH 2 07 FIBERGLASS CLOTH P2 ROSSII OR TUNED PIPE --4 \ 047 COWL ALIGNMENT PINS -lFi S-D2 TIE-DOWN BOLTS L/IK PLY TANKI SHIELDCIi II 1W ROSSI IS MK III I ENGINE L i 1 REMOVABLE COWL I CARVED FROM BISS BLOCK 1-1/21-1/4 9CUSTC*4 2BO AWM VENTURI L4 ALUM TUBE /1HEASPIPE COOLER OZUS I/B COOLING SLOT SIDE VIEW DSK CF PROPELLER 0I2345B Rough up inside bonding surface wing ooarse sandpaper bond Goodyear Pliobond Clamp wing between two pieces 1-in angle iron good-sized vise Align carefully until get desired airfoil section slight washin effect Clamp last /16 trailing edge get true symmetrical airfoil no polywog Clamp full length wing small C-clamps spaced 6 bake 3500 oven hour half An alternate method ofbondingthewingistouse 3M 2216 gray epoxy clamp same manner Use little possible weight will build up quickly Belicrank Cut out bellcrank piece 030 CRS shown draw ing sure bush holes brass tubing Cut slot boss provided Lenzen pan accept bellcrank crank anchored 4-40 flathead Allen screw tapped pan make smooth bearing surface bellcrank run some solder approximately 080-in over threads come contact bushing 74 Model Aviation authors Rossi features modified needle valve custom-shaped 265-in alumi num venturi custom speed pan available Jurgen Lenzen West Germany bellcrank resides beneath fuel tank Two mounting studs hold tank place Full-Size Plans Available. See Page 180 FRONT VIEW 5-56 1/4 BUTTONHEAD WING RET SCREWS S8 oR~LDRAM-FILL T VIEW RAME- 43/IS A FR I/G HITH METALkILW I/R4I4V8 TOP VIEWSIDE VIEW FUEL TANK DETAIL BUILD FROM 006 TIN FILE IN TOOMODIFIED SCREWORIVER NOED FLAT 070 CUT EEDLETOI070 SLOT NEEDLE VALVE MOOS S/IA BIL SILVER SOLDER TOOl-WOO RUTS-I FOI9MED -S/4 oS/B L52 BRASS PUSHMOD SUITES ITYPI 3D OCOCK LINK SASS EM BLY 0235 CLIP ASSY PRATHER 4OBO C/IA PLYNDOO TAKF-OF flOLLY Ho-oH SIDE VIEW FUEL4-40 BELLCRANI BOLT FU00ROO SHIELDTAP 1004 v4-2BLOCATION PORTIONBELLCRANK 030 CRSD -D 6-32 TANK MCUNTING STUD -1/10 PLYWOFIU E -E N 0 GJBAO TA IWO EEL 10-S/A---COVER ALL WIRE IN CONTACT MED SIZE__SILICONE TURING SCALE I/S SIZE II/R MUSIC WIRE N-I/A TO MODELWIRE 01-1/2SAAPE FRONT B REAO 3/30 TAILTRAFCRACCES TO SUIT MOSEL WIRE ____2-3/4 OUBRO S/I/U SOLDER WASHERS ROTH SIDES FRONT VIEW F-IF-2010 2024 ALUM WIND PANEL 1 TANK MOUNT_________AVAIL FROM SACKETT PRODUCTS SSBOO 02294 BURNOOT BC CANADA VSC -SF7 PANEL DIM 3s 3/4o ST-I/B LA Do5/4 VASS MONOLINE 30K UP BUTTONS TOP VIEW SPAR FORMED FROM 3/B -6061 TO ROUND STOCK THREADED TO PAN LEADOUT GUIDES FROM FLATTENED I/H BRASS TUBE SIDEWINOER PAN AVAILABLE 3URGEN LENZEN ALFRED-TOBBERT 575600 WUPPERTAL 2 W GERMANY 1/16 PLY PIPE/TANK SHIELD N SLEEVES GASS TUBING - A-A ______________ CUT BACK WING FILLET TO ACHIEVE CMENSION U-S/A 025 3/0 __ -045 II-236 WITSIF 035 DIAz-F-F TAILS KID REPLACEABE 078VOW OF PAN SlIOSRISO POSITIVE WIRE SKIDREID GMENSIONS-WINN 0 ROILT MODEL AVIATION EAI C/L SPEED WIND SPAN37DESIGNED B DRAWN BT WING AREA 716950 INCHRIS SACKETT STAB AREA2BBBSO INTRACING BY LENGTH19JOE DEMARCO WEIGHT20 TO21 OZ CANADIAN NATiONAL RECORD HOLDEI9 Cut out exit holes pan wing fillet area control lines lines attached using small Monoline buttons hooked up 047-in lead-outs see drawing Finally drill tap two 632 holes tank mount Finish shaping pan externally until get exact shape want lap engine mount surface some emery paper oil plate sheet glass Square mating surfaces true up much models favorable flying char acteristics will depend upon alignment entire model based around basswood crutch great care should taken get stab mount ing surface square thrust line Start laying out centerline both sides Ys-in crutch work solely reference line Beginning square edge locate cut stab mount area should sit 70 dihedral angle h-in below centerline crutch Its easier keep everything aligned work table saw can cut hand youre accurate Lay pan crutch centering Continued page 166 January 1987 75 variety slnglebiade carbon fiber props Lenzen counterweights Props ob tained varlousspeciaiity manufacturers theones range pitchfrom 54to59 Bought Colored Fuel Line YOU DEFINITELY PAID TOO MUCH Pay Fancy Colors ON ENGINE DETERMINES REQUIRED TUBING DIAMETER EXTRA LARGE 125 iD 250 001 SH-616 2FTPKG $135 SII-661 2$ FT ROLL $1325 LARGE 093 10- 215 GD SH-2901 FT PEG$ 89 SH-646 2 FT PKG 111$ SN-291 2$ FT ROLL $1295 MEDIUM 062 ID- 156 ODl 54-2851 FT PKG$ 90 SH-545 2 FT PKG $110 SN 28925FT ROLL. $1195 FUEL FITTING SIZE * Heat-Proof will melt resting dIrectly hotteSt part running model engine Wont Harden Fuelil'~ 9111 Resistant Cuts TearsNOT FOR GASOLINE Sig first introduce silicone fuel line tubing model aviation market way back 1964 premium tubing still comes its original natural white color Some competitors would have believe ad ding blue red yellow dye tubing charging higher price makes product better dont believe Sigs original silicone fuel tubing has important characteristics need quality fuel line None Better Any Price OR COLOR See dealer first available order direct Call 800-247-5003 toll free orders Latest Catalog $300 SIG MANUFACTURING CO INCMontezuma IA 50171 Say8 th8t old TinierjtGI st 550115 Gte1W$OflFrom this. peEt VtUQ. 1-eES TaOtS Mole 4 Ignition Engine Parts Only Over 600 items Send $200 current catalog performances Championships showed aeromodeling sport can unite competitors countries no matter good individual may perform love talking about model airplanes should also remembered dont go wont learn learning essential part improv ing performance contestants finished following order best speed kilometers per hour listed 1 Kalmikov USSR29363 2 Piskalev USSR28800 3 Mult Hungary 287534 Dodge USA28639 5 Choj nacki Poland28639 6 Szegadi Hungary 285267 KohaniukUSSR28191 8 Molnar Hungary28059 9 Rachwal Po land27993 10 Schuette USA27734 11 Novakowski Poland27522 12 Ding PRC27231 13 Zhu PRC27231 14 HalmanUK27 149 15 LiPRC 27027 16 Assen Bulgaria26905 17 Kabakov Bulgaria26745 18 Kales Yugo slavia26548 19 Bianchi Brazil26 181 20 Matilainin Finland25714 21 Schmidt FRG25622 22 Hrustanovic Yugo slavia255 34 23 Hiern Australia25495 24 Rosenhan FRG25263 25 Magne France25 174 26 Brewin UK25 122 27 Bilat Switzerland24879 28 Borovac Yugoslavia2481O 29 Borer Switzerland 2474230 Bontcev Bulgaria24590 31 Metkemeyer Netherlands245 2332 New ton USA24406 33 McGalddery UK 2435734 Bertin Brazil24324 35 Fall gren Sweden24096 36 Christen Switzer land23952 37 Rietbergen Netherlands 23952 38 Kjelberg Sweden23809 39 Valo Finland23560 40 Wake Australia Great Planes Big Stiks offer quality ease r assembly superior flighf characteristics never before available stik style models Features include notched interlocking die machine-cut balsa plywood parts fast accurate construc tion hardware Additional hardware included either tricycle talidragger configuration Three versions available 53 span 20 size 59 span 40 size 60 size require 4-channel radio Available al KATPIAftIIi Leading Dealers ~JELE Nalionwide P0 5ov721 U va IL 61801- 23047 41 Fagerstrom Finland22929 42 Hanting Australia22332 43 Pinho Brazil0 Thanks once again David Brewin member UK Speed team report Gene Hempel 301 N Yale Dr Garland TX 75042 CL Racing/Ballard Continued page 70 fiberglass/epoxy prop means epoxy curing agent mixture improper prop should sent back manufacturer refund/replacement addition inspec tion fiberglass strands blade shows minimum amount strands hub area prop will certalnly prone shrinking under heat pressure high-winding Rat engine end flying day always take props Ive used inspect front strong light see internal cracks alr bubbles may produce crack subsequent failure also look hairline cracks around bubbles locked epoxy could lead blade failure As always solicit comments ideas photos John C Ballard 10102 Kimblewick Dr Louisville KY 40223 responding advertisers mention read about ModelAviation Wi Idf ref Sackett Continued page 75 carefully taCk-glue position using few drops cyanoacrylate CyA Draw outline fuselage rough-cut toshapeNexttakeapieceoflx lx 10-in medium balsa tack-glue position tailpiece outer shape fuselage can sanded final shape leaving area re movable cowl unfinished Break assembly apart clean pan mount enginetaping up openings keep dust dirt out until shaping work completed Locate four tie-down holes drill out little oversize accommodate brass tubing glue tubes place slowdrying epoxy such Hobbypoxy 2 ensure accuracy wax tie-down bolts insert position gluing tubes Use elastic bands hold pan crutch position Let whole thing dry least 24 hours Take assembly apart use coping saw cut out center crutch outline shown drawing Decide whether wish enclose engine lugs completely fuselage cut around suggest enclose engine completely tends weaken crutch severely otherwise slight amount material will have removed lugs Rossi 15 accomplish Cut lugs back ~ia inside pan leaving enough material crutch adequate strength cowl formed blank straight-grained basswcod prefer wood cowl over fiberglass lay-up better vibration-damping strength Start cutting out engine hole diameter Ys6 larger head Use circle cutter rough-clearance inside allow cowl accept engine Rough-shape outside approximately er around shown drawing tack-glue crutch blend rest fuselage Break apart install pipe clearance inside ap proximate thickness Y32 in pipe area front should solid 166 Model Aviation FIBERGLASS COWLS 70 cowls eelpants Sig Pica Top-Flue Jesce Nosen PIlot Stafford Radials Bebrens Garmhausen W E Tech other kits plans One-piece laminated construction handlaid fiberglass strong lightweight Send SASE price list please inclpde names models interested parts br call between 9AM o PM EOT informatIon COO ordering hope hear veul FIBERGLASS 703 890-6017 iI1lept~tii Ba 530 Geodview VA 24895 possible Shape sand cooling slot venturi opening As may have noticed needle valve exits right cowlcrutch parting line So remove needle valve disassembling model needle shortened modified will covered later Stabilizer quite important build light yet very rigid stab assembly order get center gravity CG correct Select piece stiff medium-hard %6-in balsa cut shape stiffen i/u-in sq spruce hardwood Use slow-drying CyA Sand perfect symmetrical sec tion cut out elevator area elevator used original all-metal type built correctly will resist failure vibration fatigue Simply solder up frame shown plan use Sta-Brite fold over 010-in aluminum skin Cement place 3M 2216 epoxy control horn cut bit 0 30in CRS bushed 055-in pushrod Check sure height horn axle pushrod exactly /6 model may too sensitive Carefully attach elevator stab gluing i/n-in tubing ends axle slow-drying Hobbypoxy 2 sure dont glue down elevator wax areas Chapstick glue needed dry sand smooth stiffen stab couple coats thinned K&B polyester resin rubbed grain cloth Three thin coats should fine Further stiffen stab covering 2oz fiberglass cloth resin dry sand off lumps finish two coats clear resin Test-fit stab fuselage Hollow out enough material crutch allow control system work smoothly hollow tailpiece thickness rod must installed elevator attaching stab crutch Coat control areas Chapstick glue place pusbrod two-piece affair allow disassembly ship back half cut approximate length can now install two /16 ply formers two i/n x pushrod guides As shown draw ing pushrod runs close inner edge fuselage Bolt whole assembly together hand-fit pushrod its proper position Fine adjustments can made resoldering quick-links along pushrod adjusting threads Before gluing tailpiece good idea fuel-proof tail section few coats clear epoxy dry check smoothness operation system must precise little no play otherwise flying becomes erratic high speeds sloppiness fix now Carve sand pipe area like get nice smooth seat float pipe attached englne head pipe somewhat floats fuselage use two small 031-in wire hooks attached head pipe around front engine small spring way mount tuned pipe avoid bending breakage Test-fit /16-in tank shield ad justing come close possible pipe touching necessary because youll need room can get tank adjustment satisfied glue place tank shield important prevents fuel becoming heated during flight Install 055-in skids stab fuselage keep pan good alignment during hard wear tear ships receive glue four alignment tabs made /u ply Put two very front pan two rear make perfect fit like actually mold mixing up filler epoxy glue finely-chopped fiberglass cloth dabbing over tabs waxing pan can now put crutch-pan assembly together tie-down bolts dry will break apart perfect-fitting pan no play cowl mounted ship Prather DZUS clip 047-in wire hooked crutch Finish have found K&B Super poxy system works best providing tough durable fuel-proof finish begin treat bare wood surfaces reball RIC Idle-Bar Glow Plugs Long Short$1 89 Also. Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal $149 Only Swanson Associates PO Box 151 S,x 1948 Wayne NJ 07470 Remember 40 Wing 15 25 Engines Dealers ributors Welcomed Phone 703 273 9593 FLYLINE MODELS INC PO Sex 2136 Fairfax VIrgInia 22031 U 5 January 1987 167 ~----- YS Engines Parts Atlanta Kits Challenge IV Kits Hattori Pipes / Headers FAT RC Pattern Specialties PO Box 388914-248-8603 Lincoindale NY 10540 4 Classic R/C Scale TI4 SGRAT LAKES CORPORATION St tsA g0245 SANDER ADJUSTABLE TENSION HAND RFLT cAlibER MINI-STRIPSPRECISION DIE-CUT Medium Garnet SAVES TIMEREPLACEMENTFinn Garnet AND EFFORT 8165 SANDING BELTSAsstd Water Print TEE e BAR ALUMINUM EXTRUSION SANDING BLOCK tar use RUFF-STUFF Sell adhesIve sand paper Large True Surface Wee tWearOut 11 Inch 8251 Handy Use 22 Inch 8375 RUFF F ELF ADHESIVE SHEET MAKE SAN OMPER YOUR OWN SPECIAL SANDING SHAPES Easy Use Medleer Fine r Pine $39 Ho glee er drying MINIisAw $79 COMPACT 10 inch HACK SAW SAWS ANYTHING ANYWHERE Saw has rugged die-cast frame corntprtable chip-pruet plastic seal handle RecedIng nun sad ad testable B bled gives good work access Cats wood plestic metal HARDENED MUSIC WIRE extra hlades-SI$199 Add 20% postage Send 25 cotlog three coats K&B polyester sur facing resin thinned about 50-50 Spray couple coats K&B primer sand smooth spray favorite color thinned 200% get really smooth shiny look have spray very fine coats wet look really quite simple little practice can achieve out standing results Fuel system fuel system com monly used worldwide simple pure suction method Most other forms fuel delivery have inherent inconsisten cies inconsistency last thing need models fly tremendous speeds tank shown drawing must no wider /i Otherwise weight fuel centrifugal force will make difficult get engine lean enough optimum setting tubing h-in brass should cover pickup tube tank fine screen prevent air bubbles entering fuel line tank must float mounting studs totally free metal-to-metal contact pan achieve running large-size soft sili cone tubing inside 5/su-in brass tube mounting brackets using small rubber groinmets caps ends tank located adjusted using 632 aircraft nuts washers mount ing studs Make sure use grommet fill line passes through pan venturi diameter will probably determined individual model should try run large opemng possible still have enough fuel draw get off ground Start out stock Rossi unit enlarge around 280 like can increase performance adding air-collecting funnel exist ing venturi help supercharge mix enters crankcase can achieved gluing piece aluminum tubing existing venturi flange epoxy machining out bar stock Engine Wildfire built around Rossi Mark Ill engine good racing 15 will work OPS 15 good choice Cox K&B engines will fit spacious Leazen pan just fine Start rework carefully disas sembling engine inspecting parts remove bearings heat oven 300 lightly tap case bearings will fall out freely Remove casting steps main bypass areas crankcase Dremel tool polish Rossi pretty good engine out box rework should need case latest Rossi pipe-timed engines coming through revised crank liner timing figures crank should open 350 after bottom dead center close 650 after top dead center Crank work starts boring out inside diameter about 300 Radius internal areas fuel flow FLYING SCALE MODEL RIC PLANS Super Detail e Photos Instruction Sheets _ h Plans 19163 Shadowood Dr Send SASE foe listMonument CA 80132 * SCALE DOCUMENTATION * SCALE DRAWINGS MODEL PLANS PHOTOS BOOKS EPLA-TECI-I AIRPLANE CATALOGINTERNATIONAL ova ioo PAGES48500 MC KENZIE HWY S3OOVIDA OREGON 97488 Vacation 5C W0305D Handy Dissey World Kennedy Space Cester sod rent Florida 3 Bedrooms sleeps 8 Kitchen A/C Pool Tennis sod lots li/C flying Nov-May 5500 wk / June-Oct 0450 wE / sightly monthly rates also available R17 5284045 sheen w/accessorses UTNES $2795 Up PeeciStOfi Tools Book Metale StOO Cubing CAVPIELL FGLS CG 210CM SeIne Rd BpnlngflehdOtrlo 48506 513-322-5562 Mae eG MAoeees ew MOP SIIPPLID 5 For Avwson Models ANDINC III 100 W 20525I M eosd, Nan C,oOogs 01304-562 3030p j SeOfr ,,Oerfordn odqoOk,nla& o1 Ito BOX 42B5PTLANU N C28776 CARBON MAT SAMPLE 2 OR 5 OZ/SQ YD SEND $100 EACH TO AEROSPACE COMPOSITE PRODUCTS PO Box 16621 Ervine CA 92714 PSAW DIESELS Englands Finest 049 35 RJC STD Send $100 list Eric Cluttoni 913 Cedar Lane Tullahoma Tenn 37388 Ia SandSSAEoar complete ito 168 Model Aviation ERSR Padded flats curves Handy Hold Easy Us OUALITY FREE FLIGHT KITS AND SUPPLIES FOR COMPETITION AND SPORT SINCE 1975 Duster inquiriesCatalog 500 invited BLUE RIDGE MODELS. [DCO SKY DEVIL 65 Ignttnon Approxed 90 Day Warraistv - Twin Ball Bearing Crank Americas finest old-timer engine Originally designed Hassad & Havlik replica engine resonic tuning ensures continuous flow power through speed range Look out green one$ goodbye red headT&Ds replica Sky Devil 65 $279 less coil cond & plug alit lesldents add 6% sales tax ORDER DIRECT T&D RESEARCH AssoclArEs 6371 El Cajon Blvd Suite 115 San Diego CA 92115 SI FOR BROCHURE well opening counterweight area shown drawing help atom ize incoming fuel charge carefully cut eight grooves around crank hole back good idea cover crank pin small piece brass tubing protect grinding latest Rossi Mark III engines pipe-timed variety using ABC piston liner sets timing figures 1270 transfer timing 1940 exhaust ideally suited high rpm small prop alcohol-burning models FAI Speed type need to liner smooth out corners transfer boost ports little better fuel flow piston liner assemblies set up very close optimum fits right out box should no need lapping refitting connecting rod can streamlined symmetrical section improve fuel flow should done small jewelers file set using rounded files corners Finish up No 320 paper polish out ensure have good leak-proof seal between liner glowhead first lap liner top flange piece No 400 paper glass remove machine scores take old glowhead lap two together mild-cut polish achieve perfect fit Thoroughly clean parts before reassemble Its good idea scrub parts toothbrush methanol follow ultrasonic cleaner have case should clean free lint Warm up case drop bearings crank Put prop tighten up seat bearings let cool slowly test spin crank should spin freely six seven seconds come stop TDC top dead center binding occurs warm case again tap lightly small wooden block will seat bearings properly new Rossis really precise engines should experience no difficulty step Assemble rod wrist pin piston liner engine dry turn over check binds roughness go engine should feel extremely free except approximately 040 TDC liner taper cinches piston set up head clearance mark deck height TDC compare depth plugs using various shims try achieve head clearance 022 024 start withor maybe little Later flying can play dimension attain maxi mum power particular combina tion backplate used stock comes although some guys have success shimming out 040 050 aluminum spacer engine needs very little break inmaybe 10 15 minutes fast four-cycle hops Bolt 7-3V2 prop cut 6-in diameter run fast rich no pipe first 10 minutes needle holds steady try few peak runs check rpm tachometer should read figure around 27000 maybe 28000 good engine Attach Rossi No 2 pipe bring up peak take reading rpm figure should around 34000 35000 An engine will turn rpm good high 1 60s right prop An engine tachs 33000 will fly FAI ships around 158 mphvery competitive what Rossis will turn right out box wish can pass up engine modifications initial flights get feel airplane modifications later can note difference Propeller Single-blade carbon fiber some cases hardwood props have accepted standard FM Speed flying since found way go fast alcohol through high rpm number companies produce props different styles pitches Try 62-in di ameter 54 5-in pitch best results Mark III Rossi Jurgen Lenzen has copies famous world-record-holding Hungarian desigus well number own prices very reasonable about $5 Props also available Walt Perkins Bill Hughes myself Dolly Construct dolly shown note too asymmetric help balance model dolly January 1987 169 -uriumaflCe System Tar iuP PERFORMANCE K&B ENGINES AirplaneManne K&B FUELSK&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER P0KV RESIN K&B SUPER P0KV THINNER K&B SUPER P0KV PRIMER K&B SUPER FOXY PAINT K&B MIXING CUPS __ ADVANTAGE HORNET Strap yourself Americas first digital fighter Follow Hornet through design testing Come board aircraft carrier qualification weapons testing US Navy USMC Allied squadron training deployment Get Hornet handlers view cockpit move sky around See two types fighter pilots. fly Hornets wish didl! Video Running Time 45 Minutes Specify Beta VHS Send Cheque Money Order To GareexProductlonsOept T 460 Grandview Ave London Ont N6K 2T5 us canada add 5350 shp 5 non Oni Oesdenls add lOb POT $499 Inclode Visa o MC# nook den tlCa5on C Eopi5 Oaie Allow 23 weeks delivery SHIPPED DUTY FREE INTO USA ensure good tracking line tension dur ing critical takeoff period Take time build very true straight unit solder joints pre-soldered wrapped fine brass wire soldered Sta-Brite equivalent high-tempera ture solder making dolly sure slip some silicone tubing over areas come contact airplane before final assembly Flying Check model carefully make sure everything solid operating 100% two lines should double looped prevent chance ends opening up causing disaster Two-line models quite safe Monoline AMA models use very large wire diameters easy maintain safetys sake always inspect lines before flying kinks other signs wear begin approximate needle valve setting strap standard bench test prop fill tank fire up engine After slight warm-up period engine will hit pipe dramatically Adjust needle full-peak run slightly rich side shut off engine placing thumb over back pipe open needle another one-quarter turn bolt flying prop Youll ready first flight make fuel system work correctly must first understand tank position sets needle flight adjustment should make needle get setting necessary become airborne Fire up engine let warm up about 10 seconds raise nose slightly lean out pre-stage pipe Once engine picks up lower stage pipe will have enough power launch Hold elevator neutral until sufficient speed attained lift out dolly usually one-half three-quarters lap release model engine floods out rich flight move tank outboard slightly about 0/is try again until steady full-peaked run achieved engine runs lean hitting pipe off move tank inboard slightly go again small amount Wind Direction Anytime Anywhere B FLYMj SOCK 5 inches plus tails Attaches antenna mast Iclips includedi Available frequency colors IGive frequency number orderl $95 plus5&H66jj ForaignordersaddS&H$150 Calif Residents add 6% tax Jeffla Products PO Bex 484 Lake EIsInore CA 92330 fine tuning like will find optimum setting very easy come should very consistent FAT Speed tremendous challenge Just coming up good-flying airplane reliable fuel system half battle Wildfire solid good-flying ship allows concentrate other es sentials such engine propeller build model carefully follow directions shouldnt hard become competitive eventually join world class competition Give try Speed equipment suppliers/information North American Speed Society PO Box 82294 Burnaby BC V5C 5P7 Canada Topflight detailed information phases CL Speed flying Quarterly publication $1 5/year Ed Chris Sackett Jurgen Lenzen Alfred Dobbert Str 57 5600 Wuppertal 2 West Germany Speed pan Wildfire Speed model FAT single-blade props metric-size lines Sackett Products PO Box 82294 Burna BC V5C 5P7 Canada Aluminum wing panels carbon fiber props Rossi Sales America 1325 Carol Dr Memphis TN 38116 Rossi 15 MK III engines Rossi 15 tuned pipes glowheads Shadow Racing 1100 SE 28th St Ocala FL 32670 FAT single-blade propellers carbon fiber special prop-making epoxy Kelly Props PO Box 38 Western Springs IL 60558 sizes FAT single-blade props glass graphite Mall Show/Nunes Continued page 77 Ask manager tables barriers tablecloths etc available use display mall location provides materials set up take down finished mall area does provide items mentioned will have take steps locate secure items 170 Model Aviation SWEITZER ENTERPRISES KI CATALOGS PO BOX 834HILLSBORO OR 97123 PLANS----52OO RESEARcH cENTER--$250 3-VIEwS PHOTOS & MANUALS PHONE 503640-5102 i/4 SCALFOPT22 Kits WINGSPAN 901/4 GINEBASIC KIT 2- 8 Balsa fuselage wings----$ 325 DELUXE KIT Fiberglass fus balsa wing- $375 INThODUCTORY br radialPRICES engine notflPRICE INCREASES AFTER incladadEEU els 1587 ADD $ 24forNOTE $ISO deposit fullpaymentORDERS SHIPPED AIR MAIL isreqd reserveyour order 6 1986 h.
Edition: Model Aviation - 1987/01
Page Numbers: 72, 73, 74, 75, 166, 167, 168, 169, 170
U el consiruciion wcnniques aiong WlTfl Knowleoge gained prototypes place plane leading edge FAi Speed modeling MANY OF YOU will look over design ask yourselves model airplane ever came look like point asymmetric Control Line model has around since 1940s never gained popularity until discovered much speed gained through use longer inboard wing cover up two control lines used FAI Speed Chuck Schuette current AMA FAd class record holder first utilize asymmetry caught internationally mid-70s two Hungarians took limit wings long five feet outboard asymmetric sidewinder model now known much complicated build conventional AMA-style Speed model else being equal offers three four mph advantage understand FAI Speed mod els have evolved exotic creations today might helpful review brief history event first Canadian national record holder attests just much form follows func tion comes streamlined shape FAI Control Line Speed plane Chris Sackett Control Line Speed World Championships held 1955 Croix de Berny just few miles outside Paris rather loose affair no official team US airplanes very small high wing loading creations typical AMA ships early SOs fuel unlimited line diameter fortwo lines 25mm Jozef Sladky Czech oslovakia won event 1113mph using own engine Editor AMA files show CL Speed World Champs history bit different being 1954 World Championships Hague Netherlands 1954 contest two Speed classes 5cc 25cc Bob Lutker US won 5cc class second attempt World Championships Czechoslovakia 1957 EditorReallyafourth 1956 Speed World Championships Florence Italy team trials held US models proxy flown con testants could agree models never sent until 1960 World Championships staged full US team time 72 Model Aviation specific wing loading requirements still unlimited fuel Monoline accept able although its use protested Italians Ugo Rossi Italy won event actually whipping model narrow ly beat 2nd-place finisher Bill Wisniewski 146 142 mph first time models FAI size 7747 sq minimum used 1962 meeting Kiev straight fuel combination methanol castor oil first introduced Chuck Schuette fathers asymmetric sidewinder designs attended US team member conventional symmetrical mod el flew asymmetric backup ship practice may have Euro peans first sight design sub sequent World Champs kinds asym metric designs turned upeither upright semi-asymmetric true dog leg inboard full asymmetric Californians Chuck Schuette Arnold Nelson Bob Spahr among others used inboard design number European speedsters notably Italians playing outboard layout plan pan inside engine head outside flying concept classes Speed including 10cc class basic design almost universally accepted now competing nations FAI Speed except US team members continue use inboard version prime reasons utilizing outboard setup enable modeler use pure suction fuel feed system pan inside makes room large hard tank inside centerline venturi engine can have richer mix during flightsomewhat like having mild form pressure system simple reliable model becomes airborne quite easily first decided design model borrowed lot ideas came up some own hoping best worlds wanted long inboard asym metric wing outboard fully asymmetric layout model clean could expected slim fuselage enclosed pipe two-piece shell easy main tenance As designing model Jurgen Lenzen West German FAI flier just made available perfect sidewinder speed pan integrated wing stub based final design around pan speed pan available Jurgen Lenzen Alfred-Dobbert Str 57 5600 Wuppertal 2 West Germany Twen ty US dollars will bring right door wing can obtained Sackett Products PO Box 82294 North Burnaby BC V5C 5P7 price $30 US Rossi MK III available Rossi Sales America 1325 Carol Dr Memphis TN 38116 speed pan Take exact dimension front pan leading edge wing set up speed pan carefully stock pan comes root chord too wide leading edge fillet must cut back accom modate 3-in -wide wing dimension leading edge backplate spinner must 3 will have grind inside pan carefully provide clearance Rossi 15 get right location Once satis fied spray some blue layout dye mark holes scribe center punch drill tap 4-40 bolts Make up aug hold pan 900 drilling make sure dont drill through casting must work utmost accuracy sloppiness drilling may give up downthrust engine next step installation spar control system spar formed piece -in aluminum bar stock can found metal shops Type 7075 nice necessary original built piece soft aluminum working just fine Cut piece 25 taper 2 tip Notice necessary spar extend full length material can tapered lathe simply filed hand flat top bottom spar attached pan tapping threading -28 tapping pan use ajig drill press assure accuracy Test-fit spar pan make sure everything lines up square may find necessary use small shims between spar pan order obtain desired location wing aligmnent incidence January1987 73 ne two-piece cowi ne engine nas uniflow ram intaketube sealed tothe cowl rubber grommet Lenzen counterbalance spinner needle valve has shortened facilitate engine removal disturbing flight adjusted setting suction-only fuel feed system has proven very reliable Note position overflow tube tank pressurizing purposes quick-link pushrod connector set root fillet pan 010m wing skin slips over fillet ng fillet can set exact root angle attack Using wing correct twist carve 090-in positive inci dence root pan Wing Making aluminum wings very simple once youve tried think youll agree quickest easiest form wing can make material ALCLAD 2024 T3 thickness 010 Speed fliers find material aircraft surplus stores around airports service work cost outlets quite reasonable sheet 3 x 10 ft will build airplanes Determine grain material first can seen brushed effect material possesses after being rolled mill sure lay out wing grain running leading edge trailing edge Otherwise wing will split being folded Use spray-type layout dye aluminum surface mark pattern carefully scribe Cut wing No 11 X-Acto blade scoring aluminum skin three four times necessary cut right through material will break off very cleanly bent slightly achieve airfoil section must first bend material flat sheet metal brake Failing can clamp between two pieces 2-in angle iron clamped large vise use third piece straight angle iron bend 900 Remove vise carefully bend flat workbench using couple planks -in plywood Try flatten fold around 6 nice sharp leading edge Open up 30 using couple pieces sheet metal making sure straight true ______ 5/3 STABILIZER DIHEDRAL SKID 7-34 TA ILS K ID 7K51/2 21/4C - STAB 3/1K SO HARDWOOD-C VI HARY BALSA STAB STIFFEN BY RUBBING K B POLYESTER INTO GRAIN COVER WITH 2 07 FIBERGLASS CLOTH P2 ROSSII OR TUNED PIPE --4 \ 047 COWL ALIGNMENT PINS -lFi S-D2 TIE-DOWN BOLTS L/IK PLY TANKI SHIELDCIi II 1W ROSSI IS MK III I ENGINE L i 1 REMOVABLE COWL I CARVED FROM BISS BLOCK 1-1/21-1/4 9CUSTC*4 2BO AWM VENTURI L4 ALUM TUBE /1HEASPIPE COOLER OZUS I/B COOLING SLOT SIDE VIEW DSK CF PROPELLER 0I2345B Rough up inside bonding surface wing ooarse sandpaper bond Goodyear Pliobond Clamp wing between two pieces 1-in angle iron good-sized vise Align carefully until get desired airfoil section slight washin effect Clamp last /16 trailing edge get true symmetrical airfoil no polywog Clamp full length wing small C-clamps spaced 6 bake 3500 oven hour half An alternate method ofbondingthewingistouse 3M 2216 gray epoxy clamp same manner Use little possible weight will build up quickly Belicrank Cut out bellcrank piece 030 CRS shown draw ing sure bush holes brass tubing Cut slot boss provided Lenzen pan accept bellcrank crank anchored 4-40 flathead Allen screw tapped pan make smooth bearing surface bellcrank run some solder approximately 080-in over threads come contact bushing 74 Model Aviation authors Rossi features modified needle valve custom-shaped 265-in alumi num venturi custom speed pan available Jurgen Lenzen West Germany bellcrank resides beneath fuel tank Two mounting studs hold tank place Full-Size Plans Available. See Page 180 FRONT VIEW 5-56 1/4 BUTTONHEAD WING RET SCREWS S8 oR~LDRAM-FILL T VIEW RAME- 43/IS A FR I/G HITH METALkILW I/R4I4V8 TOP VIEWSIDE VIEW FUEL TANK DETAIL BUILD FROM 006 TIN FILE IN TOOMODIFIED SCREWORIVER NOED FLAT 070 CUT EEDLETOI070 SLOT NEEDLE VALVE MOOS S/IA BIL SILVER SOLDER TOOl-WOO RUTS-I FOI9MED -S/4 oS/B L52 BRASS PUSHMOD SUITES ITYPI 3D OCOCK LINK SASS EM BLY 0235 CLIP ASSY PRATHER 4OBO C/IA PLYNDOO TAKF-OF flOLLY Ho-oH SIDE VIEW FUEL4-40 BELLCRANI BOLT FU00ROO SHIELDTAP 1004 v4-2BLOCATION PORTIONBELLCRANK 030 CRSD -D 6-32 TANK MCUNTING STUD -1/10 PLYWOFIU E -E N 0 GJBAO TA IWO EEL 10-S/A---COVER ALL WIRE IN CONTACT MED SIZE__SILICONE TURING SCALE I/S SIZE II/R MUSIC WIRE N-I/A TO MODELWIRE 01-1/2SAAPE FRONT B REAO 3/30 TAILTRAFCRACCES TO SUIT MOSEL WIRE ____2-3/4 OUBRO S/I/U SOLDER WASHERS ROTH SIDES FRONT VIEW F-IF-2010 2024 ALUM WIND PANEL 1 TANK MOUNT_________AVAIL FROM SACKETT PRODUCTS SSBOO 02294 BURNOOT BC CANADA VSC -SF7 PANEL DIM 3s 3/4o ST-I/B LA Do5/4 VASS MONOLINE 30K UP BUTTONS TOP VIEW SPAR FORMED FROM 3/B -6061 TO ROUND STOCK THREADED TO PAN LEADOUT GUIDES FROM FLATTENED I/H BRASS TUBE SIDEWINOER PAN AVAILABLE 3URGEN LENZEN ALFRED-TOBBERT 575600 WUPPERTAL 2 W GERMANY 1/16 PLY PIPE/TANK SHIELD N SLEEVES GASS TUBING - A-A ______________ CUT BACK WING FILLET TO ACHIEVE CMENSION U-S/A 025 3/0 __ -045 II-236 WITSIF 035 DIAz-F-F TAILS KID REPLACEABE 078VOW OF PAN SlIOSRISO POSITIVE WIRE SKIDREID GMENSIONS-WINN 0 ROILT MODEL AVIATION EAI C/L SPEED WIND SPAN37DESIGNED B DRAWN BT WING AREA 716950 INCHRIS SACKETT STAB AREA2BBBSO INTRACING BY LENGTH19JOE DEMARCO WEIGHT20 TO21 OZ CANADIAN NATiONAL RECORD HOLDEI9 Cut out exit holes pan wing fillet area control lines lines attached using small Monoline buttons hooked up 047-in lead-outs see drawing Finally drill tap two 632 holes tank mount Finish shaping pan externally until get exact shape want lap engine mount surface some emery paper oil plate sheet glass Square mating surfaces true up much models favorable flying char acteristics will depend upon alignment entire model based around basswood crutch great care should taken get stab mount ing surface square thrust line Start laying out centerline both sides Ys-in crutch work solely reference line Beginning square edge locate cut stab mount area should sit 70 dihedral angle h-in below centerline crutch Its easier keep everything aligned work table saw can cut hand youre accurate Lay pan crutch centering Continued page 166 January 1987 75 variety slnglebiade carbon fiber props Lenzen counterweights Props ob tained varlousspeciaiity manufacturers theones range pitchfrom 54to59 Bought Colored Fuel Line YOU DEFINITELY PAID TOO MUCH Pay Fancy Colors ON ENGINE DETERMINES REQUIRED TUBING DIAMETER EXTRA LARGE 125 iD 250 001 SH-616 2FTPKG $135 SII-661 2$ FT ROLL $1325 LARGE 093 10- 215 GD SH-2901 FT PEG$ 89 SH-646 2 FT PKG 111$ SN-291 2$ FT ROLL $1295 MEDIUM 062 ID- 156 ODl 54-2851 FT PKG$ 90 SH-545 2 FT PKG $110 SN 28925FT ROLL. $1195 FUEL FITTING SIZE * Heat-Proof will melt resting dIrectly hotteSt part running model engine Wont Harden Fuelil'~ 9111 Resistant Cuts TearsNOT FOR GASOLINE Sig first introduce silicone fuel line tubing model aviation market way back 1964 premium tubing still comes its original natural white color Some competitors would have believe ad ding blue red yellow dye tubing charging higher price makes product better dont believe Sigs original silicone fuel tubing has important characteristics need quality fuel line None Better Any Price OR COLOR See dealer first available order direct Call 800-247-5003 toll free orders Latest Catalog $300 SIG MANUFACTURING CO INCMontezuma IA 50171 Say8 th8t old TinierjtGI st 550115 Gte1W$OflFrom this. peEt VtUQ. 1-eES TaOtS Mole 4 Ignition Engine Parts Only Over 600 items Send $200 current catalog performances Championships showed aeromodeling sport can unite competitors countries no matter good individual may perform love talking about model airplanes should also remembered dont go wont learn learning essential part improv ing performance contestants finished following order best speed kilometers per hour listed 1 Kalmikov USSR29363 2 Piskalev USSR28800 3 Mult Hungary 287534 Dodge USA28639 5 Choj nacki Poland28639 6 Szegadi Hungary 285267 KohaniukUSSR28191 8 Molnar Hungary28059 9 Rachwal Po land27993 10 Schuette USA27734 11 Novakowski Poland27522 12 Ding PRC27231 13 Zhu PRC27231 14 HalmanUK27 149 15 LiPRC 27027 16 Assen Bulgaria26905 17 Kabakov Bulgaria26745 18 Kales Yugo slavia26548 19 Bianchi Brazil26 181 20 Matilainin Finland25714 21 Schmidt FRG25622 22 Hrustanovic Yugo slavia255 34 23 Hiern Australia25495 24 Rosenhan FRG25263 25 Magne France25 174 26 Brewin UK25 122 27 Bilat Switzerland24879 28 Borovac Yugoslavia2481O 29 Borer Switzerland 2474230 Bontcev Bulgaria24590 31 Metkemeyer Netherlands245 2332 New ton USA24406 33 McGalddery UK 2435734 Bertin Brazil24324 35 Fall gren Sweden24096 36 Christen Switzer land23952 37 Rietbergen Netherlands 23952 38 Kjelberg Sweden23809 39 Valo Finland23560 40 Wake Australia Great Planes Big Stiks offer quality ease r assembly superior flighf characteristics never before available stik style models Features include notched interlocking die machine-cut balsa plywood parts fast accurate construc tion hardware Additional hardware included either tricycle talidragger configuration Three versions available 53 span 20 size 59 span 40 size 60 size require 4-channel radio Available al KATPIAftIIi Leading Dealers ~JELE Nalionwide P0 5ov721 U va IL 61801- 23047 41 Fagerstrom Finland22929 42 Hanting Australia22332 43 Pinho Brazil0 Thanks once again David Brewin member UK Speed team report Gene Hempel 301 N Yale Dr Garland TX 75042 CL Racing/Ballard Continued page 70 fiberglass/epoxy prop means epoxy curing agent mixture improper prop should sent back manufacturer refund/replacement addition inspec tion fiberglass strands blade shows minimum amount strands hub area prop will certalnly prone shrinking under heat pressure high-winding Rat engine end flying day always take props Ive used inspect front strong light see internal cracks alr bubbles may produce crack subsequent failure also look hairline cracks around bubbles locked epoxy could lead blade failure As always solicit comments ideas photos John C Ballard 10102 Kimblewick Dr Louisville KY 40223 responding advertisers mention read about ModelAviation Wi Idf ref Sackett Continued page 75 carefully taCk-glue position using few drops cyanoacrylate CyA Draw outline fuselage rough-cut toshapeNexttakeapieceoflx lx 10-in medium balsa tack-glue position tailpiece outer shape fuselage can sanded final shape leaving area re movable cowl unfinished Break assembly apart clean pan mount enginetaping up openings keep dust dirt out until shaping work completed Locate four tie-down holes drill out little oversize accommodate brass tubing glue tubes place slowdrying epoxy such Hobbypoxy 2 ensure accuracy wax tie-down bolts insert position gluing tubes Use elastic bands hold pan crutch position Let whole thing dry least 24 hours Take assembly apart use coping saw cut out center crutch outline shown drawing Decide whether wish enclose engine lugs completely fuselage cut around suggest enclose engine completely tends weaken crutch severely otherwise slight amount material will have removed lugs Rossi 15 accomplish Cut lugs back ~ia inside pan leaving enough material crutch adequate strength cowl formed blank straight-grained basswcod prefer wood cowl over fiberglass lay-up better vibration-damping strength Start cutting out engine hole diameter Ys6 larger head Use circle cutter rough-clearance inside allow cowl accept engine Rough-shape outside approximately er around shown drawing tack-glue crutch blend rest fuselage Break apart install pipe clearance inside ap proximate thickness Y32 in pipe area front should solid 166 Model Aviation FIBERGLASS COWLS 70 cowls eelpants Sig Pica Top-Flue Jesce Nosen PIlot Stafford Radials Bebrens Garmhausen W E Tech other kits plans One-piece laminated construction handlaid fiberglass strong lightweight Send SASE price list please inclpde names models interested parts br call between 9AM o PM EOT informatIon COO ordering hope hear veul FIBERGLASS 703 890-6017 iI1lept~tii Ba 530 Geodview VA 24895 possible Shape sand cooling slot venturi opening As may have noticed needle valve exits right cowlcrutch parting line So remove needle valve disassembling model needle shortened modified will covered later Stabilizer quite important build light yet very rigid stab assembly order get center gravity CG correct Select piece stiff medium-hard %6-in balsa cut shape stiffen i/u-in sq spruce hardwood Use slow-drying CyA Sand perfect symmetrical sec tion cut out elevator area elevator used original all-metal type built correctly will resist failure vibration fatigue Simply solder up frame shown plan use Sta-Brite fold over 010-in aluminum skin Cement place 3M 2216 epoxy control horn cut bit 0 30in CRS bushed 055-in pushrod Check sure height horn axle pushrod exactly /6 model may too sensitive Carefully attach elevator stab gluing i/n-in tubing ends axle slow-drying Hobbypoxy 2 sure dont glue down elevator wax areas Chapstick glue needed dry sand smooth stiffen stab couple coats thinned K&B polyester resin rubbed grain cloth Three thin coats should fine Further stiffen stab covering 2oz fiberglass cloth resin dry sand off lumps finish two coats clear resin Test-fit stab fuselage Hollow out enough material crutch allow control system work smoothly hollow tailpiece thickness rod must installed elevator attaching stab crutch Coat control areas Chapstick glue place pusbrod two-piece affair allow disassembly ship back half cut approximate length can now install two /16 ply formers two i/n x pushrod guides As shown draw ing pushrod runs close inner edge fuselage Bolt whole assembly together hand-fit pushrod its proper position Fine adjustments can made resoldering quick-links along pushrod adjusting threads Before gluing tailpiece good idea fuel-proof tail section few coats clear epoxy dry check smoothness operation system must precise little no play otherwise flying becomes erratic high speeds sloppiness fix now Carve sand pipe area like get nice smooth seat float pipe attached englne head pipe somewhat floats fuselage use two small 031-in wire hooks attached head pipe around front engine small spring way mount tuned pipe avoid bending breakage Test-fit /16-in tank shield ad justing come close possible pipe touching necessary because youll need room can get tank adjustment satisfied glue place tank shield important prevents fuel becoming heated during flight Install 055-in skids stab fuselage keep pan good alignment during hard wear tear ships receive glue four alignment tabs made /u ply Put two very front pan two rear make perfect fit like actually mold mixing up filler epoxy glue finely-chopped fiberglass cloth dabbing over tabs waxing pan can now put crutch-pan assembly together tie-down bolts dry will break apart perfect-fitting pan no play cowl mounted ship Prather DZUS clip 047-in wire hooked crutch Finish have found K&B Super poxy system works best providing tough durable fuel-proof finish begin treat bare wood surfaces reball RIC Idle-Bar Glow Plugs Long Short$1 89 Also. Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal $149 Only Swanson Associates PO Box 151 S,x 1948 Wayne NJ 07470 Remember 40 Wing 15 25 Engines Dealers ributors Welcomed Phone 703 273 9593 FLYLINE MODELS INC PO Sex 2136 Fairfax VIrgInia 22031 U 5 January 1987 167 ~----- YS Engines Parts Atlanta Kits Challenge IV Kits Hattori Pipes / Headers FAT RC Pattern Specialties PO Box 388914-248-8603 Lincoindale NY 10540 4 Classic R/C Scale TI4 SGRAT LAKES CORPORATION St tsA g0245 SANDER ADJUSTABLE TENSION HAND RFLT cAlibER MINI-STRIPSPRECISION DIE-CUT Medium Garnet SAVES TIMEREPLACEMENTFinn Garnet AND EFFORT 8165 SANDING BELTSAsstd Water Print TEE e BAR ALUMINUM EXTRUSION SANDING BLOCK tar use RUFF-STUFF Sell adhesIve sand paper Large True Surface Wee tWearOut 11 Inch 8251 Handy Use 22 Inch 8375 RUFF F ELF ADHESIVE SHEET MAKE SAN OMPER YOUR OWN SPECIAL SANDING SHAPES Easy Use Medleer Fine r Pine $39 Ho glee er drying MINIisAw $79 COMPACT 10 inch HACK SAW SAWS ANYTHING ANYWHERE Saw has rugged die-cast frame corntprtable chip-pruet plastic seal handle RecedIng nun sad ad testable B bled gives good work access Cats wood plestic metal HARDENED MUSIC WIRE extra hlades-SI$199 Add 20% postage Send 25 cotlog three coats K&B polyester sur facing resin thinned about 50-50 Spray couple coats K&B primer sand smooth spray favorite color thinned 200% get really smooth shiny look have spray very fine coats wet look really quite simple little practice can achieve out standing results Fuel system fuel system com monly used worldwide simple pure suction method Most other forms fuel delivery have inherent inconsisten cies inconsistency last thing need models fly tremendous speeds tank shown drawing must no wider /i Otherwise weight fuel centrifugal force will make difficult get engine lean enough optimum setting tubing h-in brass should cover pickup tube tank fine screen prevent air bubbles entering fuel line tank must float mounting studs totally free metal-to-metal contact pan achieve running large-size soft sili cone tubing inside 5/su-in brass tube mounting brackets using small rubber groinmets caps ends tank located adjusted using 632 aircraft nuts washers mount ing studs Make sure use grommet fill line passes through pan venturi diameter will probably determined individual model should try run large opemng possible still have enough fuel draw get off ground Start out stock Rossi unit enlarge around 280 like can increase performance adding air-collecting funnel exist ing venturi help supercharge mix enters crankcase can achieved gluing piece aluminum tubing existing venturi flange epoxy machining out bar stock Engine Wildfire built around Rossi Mark Ill engine good racing 15 will work OPS 15 good choice Cox K&B engines will fit spacious Leazen pan just fine Start rework carefully disas sembling engine inspecting parts remove bearings heat oven 300 lightly tap case bearings will fall out freely Remove casting steps main bypass areas crankcase Dremel tool polish Rossi pretty good engine out box rework should need case latest Rossi pipe-timed engines coming through revised crank liner timing figures crank should open 350 after bottom dead center close 650 after top dead center Crank work starts boring out inside diameter about 300 Radius internal areas fuel flow FLYING SCALE MODEL RIC PLANS Super Detail e Photos Instruction Sheets _ h Plans 19163 Shadowood Dr Send SASE foe listMonument CA 80132 * SCALE DOCUMENTATION * SCALE DRAWINGS MODEL PLANS PHOTOS BOOKS EPLA-TECI-I AIRPLANE CATALOGINTERNATIONAL ova ioo PAGES48500 MC KENZIE HWY S3OOVIDA OREGON 97488 Vacation 5C W0305D Handy Dissey World Kennedy Space Cester sod rent Florida 3 Bedrooms sleeps 8 Kitchen A/C Pool Tennis sod lots li/C flying Nov-May 5500 wk / June-Oct 0450 wE / sightly monthly rates also available R17 5284045 sheen w/accessorses UTNES $2795 Up PeeciStOfi Tools Book Metale StOO Cubing CAVPIELL FGLS CG 210CM SeIne Rd BpnlngflehdOtrlo 48506 513-322-5562 Mae eG MAoeees ew MOP SIIPPLID 5 For Avwson Models ANDINC III 100 W 20525I M eosd, Nan C,oOogs 01304-562 3030p j SeOfr ,,Oerfordn odqoOk,nla& o1 Ito BOX 42B5PTLANU N C28776 CARBON MAT SAMPLE 2 OR 5 OZ/SQ YD SEND $100 EACH TO AEROSPACE COMPOSITE PRODUCTS PO Box 16621 Ervine CA 92714 PSAW DIESELS Englands Finest 049 35 RJC STD Send $100 list Eric Cluttoni 913 Cedar Lane Tullahoma Tenn 37388 Ia SandSSAEoar complete ito 168 Model Aviation ERSR Padded flats curves Handy Hold Easy Us OUALITY FREE FLIGHT KITS AND SUPPLIES FOR COMPETITION AND SPORT SINCE 1975 Duster inquiriesCatalog 500 invited BLUE RIDGE MODELS. [DCO SKY DEVIL 65 Ignttnon Approxed 90 Day Warraistv - Twin Ball Bearing Crank Americas finest old-timer engine Originally designed Hassad & Havlik replica engine resonic tuning ensures continuous flow power through speed range Look out green one$ goodbye red headT&Ds replica Sky Devil 65 $279 less coil cond & plug alit lesldents add 6% sales tax ORDER DIRECT T&D RESEARCH AssoclArEs 6371 El Cajon Blvd Suite 115 San Diego CA 92115 SI FOR BROCHURE well opening counterweight area shown drawing help atom ize incoming fuel charge carefully cut eight grooves around crank hole back good idea cover crank pin small piece brass tubing protect grinding latest Rossi Mark III engines pipe-timed variety using ABC piston liner sets timing figures 1270 transfer timing 1940 exhaust ideally suited high rpm small prop alcohol-burning models FAI Speed type need to liner smooth out corners transfer boost ports little better fuel flow piston liner assemblies set up very close optimum fits right out box should no need lapping refitting connecting rod can streamlined symmetrical section improve fuel flow should done small jewelers file set using rounded files corners Finish up No 320 paper polish out ensure have good leak-proof seal between liner glowhead first lap liner top flange piece No 400 paper glass remove machine scores take old glowhead lap two together mild-cut polish achieve perfect fit Thoroughly clean parts before reassemble Its good idea scrub parts toothbrush methanol follow ultrasonic cleaner have case should clean free lint Warm up case drop bearings crank Put prop tighten up seat bearings let cool slowly test spin crank should spin freely six seven seconds come stop TDC top dead center binding occurs warm case again tap lightly small wooden block will seat bearings properly new Rossis really precise engines should experience no difficulty step Assemble rod wrist pin piston liner engine dry turn over check binds roughness go engine should feel extremely free except approximately 040 TDC liner taper cinches piston set up head clearance mark deck height TDC compare depth plugs using various shims try achieve head clearance 022 024 start withor maybe little Later flying can play dimension attain maxi mum power particular combina tion backplate used stock comes although some guys have success shimming out 040 050 aluminum spacer engine needs very little break inmaybe 10 15 minutes fast four-cycle hops Bolt 7-3V2 prop cut 6-in diameter run fast rich no pipe first 10 minutes needle holds steady try few peak runs check rpm tachometer should read figure around 27000 maybe 28000 good engine Attach Rossi No 2 pipe bring up peak take reading rpm figure should around 34000 35000 An engine will turn rpm good high 1 60s right prop An engine tachs 33000 will fly FAI ships around 158 mphvery competitive what Rossis will turn right out box wish can pass up engine modifications initial flights get feel airplane modifications later can note difference Propeller Single-blade carbon fiber some cases hardwood props have accepted standard FM Speed flying since found way go fast alcohol through high rpm number companies produce props different styles pitches Try 62-in di ameter 54 5-in pitch best results Mark III Rossi Jurgen Lenzen has copies famous world-record-holding Hungarian desigus well number own prices very reasonable about $5 Props also available Walt Perkins Bill Hughes myself Dolly Construct dolly shown note too asymmetric help balance model dolly January 1987 169 -uriumaflCe System Tar iuP PERFORMANCE K&B ENGINES AirplaneManne K&B FUELSK&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER P0KV RESIN K&B SUPER P0KV THINNER K&B SUPER P0KV PRIMER K&B SUPER FOXY PAINT K&B MIXING CUPS __ ADVANTAGE HORNET Strap yourself Americas first digital fighter Follow Hornet through design testing Come board aircraft carrier qualification weapons testing US Navy USMC Allied squadron training deployment Get Hornet handlers view cockpit move sky around See two types fighter pilots. fly Hornets wish didl! Video Running Time 45 Minutes Specify Beta VHS Send Cheque Money Order To GareexProductlonsOept T 460 Grandview Ave London Ont N6K 2T5 us canada add 5350 shp 5 non Oni Oesdenls add lOb POT $499 Inclode Visa o MC# nook den tlCa5on C Eopi5 Oaie Allow 23 weeks delivery SHIPPED DUTY FREE INTO USA ensure good tracking line tension dur ing critical takeoff period Take time build very true straight unit solder joints pre-soldered wrapped fine brass wire soldered Sta-Brite equivalent high-tempera ture solder making dolly sure slip some silicone tubing over areas come contact airplane before final assembly Flying Check model carefully make sure everything solid operating 100% two lines should double looped prevent chance ends opening up causing disaster Two-line models quite safe Monoline AMA models use very large wire diameters easy maintain safetys sake always inspect lines before flying kinks other signs wear begin approximate needle valve setting strap standard bench test prop fill tank fire up engine After slight warm-up period engine will hit pipe dramatically Adjust needle full-peak run slightly rich side shut off engine placing thumb over back pipe open needle another one-quarter turn bolt flying prop Youll ready first flight make fuel system work correctly must first understand tank position sets needle flight adjustment should make needle get setting necessary become airborne Fire up engine let warm up about 10 seconds raise nose slightly lean out pre-stage pipe Once engine picks up lower stage pipe will have enough power launch Hold elevator neutral until sufficient speed attained lift out dolly usually one-half three-quarters lap release model engine floods out rich flight move tank outboard slightly about 0/is try again until steady full-peaked run achieved engine runs lean hitting pipe off move tank inboard slightly go again small amount Wind Direction Anytime Anywhere B FLYMj SOCK 5 inches plus tails Attaches antenna mast Iclips includedi Available frequency colors IGive frequency number orderl $95 plus5&H66jj ForaignordersaddS&H$150 Calif Residents add 6% tax Jeffla Products PO Bex 484 Lake EIsInore CA 92330 fine tuning like will find optimum setting very easy come should very consistent FAT Speed tremendous challenge Just coming up good-flying airplane reliable fuel system half battle Wildfire solid good-flying ship allows concentrate other es sentials such engine propeller build model carefully follow directions shouldnt hard become competitive eventually join world class competition Give try Speed equipment suppliers/information North American Speed Society PO Box 82294 Burnaby BC V5C 5P7 Canada Topflight detailed information phases CL Speed flying Quarterly publication $1 5/year Ed Chris Sackett Jurgen Lenzen Alfred Dobbert Str 57 5600 Wuppertal 2 West Germany Speed pan Wildfire Speed model FAT single-blade props metric-size lines Sackett Products PO Box 82294 Burna BC V5C 5P7 Canada Aluminum wing panels carbon fiber props Rossi Sales America 1325 Carol Dr Memphis TN 38116 Rossi 15 MK III engines Rossi 15 tuned pipes glowheads Shadow Racing 1100 SE 28th St Ocala FL 32670 FAT single-blade propellers carbon fiber special prop-making epoxy Kelly Props PO Box 38 Western Springs IL 60558 sizes FAT single-blade props glass graphite Mall Show/Nunes Continued page 77 Ask manager tables barriers tablecloths etc available use display mall location provides materials set up take down finished mall area does provide items mentioned will have take steps locate secure items 170 Model Aviation SWEITZER ENTERPRISES KI CATALOGS PO BOX 834HILLSBORO OR 97123 PLANS----52OO RESEARcH cENTER--$250 3-VIEwS PHOTOS & MANUALS PHONE 503640-5102 i/4 SCALFOPT22 Kits WINGSPAN 901/4 GINEBASIC KIT 2- 8 Balsa fuselage wings----$ 325 DELUXE KIT Fiberglass fus balsa wing- $375 INThODUCTORY br radialPRICES engine notflPRICE INCREASES AFTER incladadEEU els 1587 ADD $ 24forNOTE $ISO deposit fullpaymentORDERS SHIPPED AIR MAIL isreqd reserveyour order 6 1986 h.
Edition: Model Aviation - 1987/01
Page Numbers: 72, 73, 74, 75, 166, 167, 168, 169, 170
U el consiruciion wcnniques aiong WlTfl Knowleoge gained prototypes place plane leading edge FAi Speed modeling MANY OF YOU will look over design ask yourselves model airplane ever came look like point asymmetric Control Line model has around since 1940s never gained popularity until discovered much speed gained through use longer inboard wing cover up two control lines used FAI Speed Chuck Schuette current AMA FAd class record holder first utilize asymmetry caught internationally mid-70s two Hungarians took limit wings long five feet outboard asymmetric sidewinder model now known much complicated build conventional AMA-style Speed model else being equal offers three four mph advantage understand FAI Speed mod els have evolved exotic creations today might helpful review brief history event first Canadian national record holder attests just much form follows func tion comes streamlined shape FAI Control Line Speed plane Chris Sackett Control Line Speed World Championships held 1955 Croix de Berny just few miles outside Paris rather loose affair no official team US airplanes very small high wing loading creations typical AMA ships early SOs fuel unlimited line diameter fortwo lines 25mm Jozef Sladky Czech oslovakia won event 1113mph using own engine Editor AMA files show CL Speed World Champs history bit different being 1954 World Championships Hague Netherlands 1954 contest two Speed classes 5cc 25cc Bob Lutker US won 5cc class second attempt World Championships Czechoslovakia 1957 EditorReallyafourth 1956 Speed World Championships Florence Italy team trials held US models proxy flown con testants could agree models never sent until 1960 World Championships staged full US team time 72 Model Aviation specific wing loading requirements still unlimited fuel Monoline accept able although its use protested Italians Ugo Rossi Italy won event actually whipping model narrow ly beat 2nd-place finisher Bill Wisniewski 146 142 mph first time models FAI size 7747 sq minimum used 1962 meeting Kiev straight fuel combination methanol castor oil first introduced Chuck Schuette fathers asymmetric sidewinder designs attended US team member conventional symmetrical mod el flew asymmetric backup ship practice may have Euro peans first sight design sub sequent World Champs kinds asym metric designs turned upeither upright semi-asymmetric true dog leg inboard full asymmetric Californians Chuck Schuette Arnold Nelson Bob Spahr among others used inboard design number European speedsters notably Italians playing outboard layout plan pan inside engine head outside flying concept classes Speed including 10cc class basic design almost universally accepted now competing nations FAI Speed except US team members continue use inboard version prime reasons utilizing outboard setup enable modeler use pure suction fuel feed system pan inside makes room large hard tank inside centerline venturi engine can have richer mix during flightsomewhat like having mild form pressure system simple reliable model becomes airborne quite easily first decided design model borrowed lot ideas came up some own hoping best worlds wanted long inboard asym metric wing outboard fully asymmetric layout model clean could expected slim fuselage enclosed pipe two-piece shell easy main tenance As designing model Jurgen Lenzen West German FAI flier just made available perfect sidewinder speed pan integrated wing stub based final design around pan speed pan available Jurgen Lenzen Alfred-Dobbert Str 57 5600 Wuppertal 2 West Germany Twen ty US dollars will bring right door wing can obtained Sackett Products PO Box 82294 North Burnaby BC V5C 5P7 price $30 US Rossi MK III available Rossi Sales America 1325 Carol Dr Memphis TN 38116 speed pan Take exact dimension front pan leading edge wing set up speed pan carefully stock pan comes root chord too wide leading edge fillet must cut back accom modate 3-in -wide wing dimension leading edge backplate spinner must 3 will have grind inside pan carefully provide clearance Rossi 15 get right location Once satis fied spray some blue layout dye mark holes scribe center punch drill tap 4-40 bolts Make up aug hold pan 900 drilling make sure dont drill through casting must work utmost accuracy sloppiness drilling may give up downthrust engine next step installation spar control system spar formed piece -in aluminum bar stock can found metal shops Type 7075 nice necessary original built piece soft aluminum working just fine Cut piece 25 taper 2 tip Notice necessary spar extend full length material can tapered lathe simply filed hand flat top bottom spar attached pan tapping threading -28 tapping pan use ajig drill press assure accuracy Test-fit spar pan make sure everything lines up square may find necessary use small shims between spar pan order obtain desired location wing aligmnent incidence January1987 73 ne two-piece cowi ne engine nas uniflow ram intaketube sealed tothe cowl rubber grommet Lenzen counterbalance spinner needle valve has shortened facilitate engine removal disturbing flight adjusted setting suction-only fuel feed system has proven very reliable Note position overflow tube tank pressurizing purposes quick-link pushrod connector set root fillet pan 010m wing skin slips over fillet ng fillet can set exact root angle attack Using wing correct twist carve 090-in positive inci dence root pan Wing Making aluminum wings very simple once youve tried think youll agree quickest easiest form wing can make material ALCLAD 2024 T3 thickness 010 Speed fliers find material aircraft surplus stores around airports service work cost outlets quite reasonable sheet 3 x 10 ft will build airplanes Determine grain material first can seen brushed effect material possesses after being rolled mill sure lay out wing grain running leading edge trailing edge Otherwise wing will split being folded Use spray-type layout dye aluminum surface mark pattern carefully scribe Cut wing No 11 X-Acto blade scoring aluminum skin three four times necessary cut right through material will break off very cleanly bent slightly achieve airfoil section must first bend material flat sheet metal brake Failing can clamp between two pieces 2-in angle iron clamped large vise use third piece straight angle iron bend 900 Remove vise carefully bend flat workbench using couple planks -in plywood Try flatten fold around 6 nice sharp leading edge Open up 30 using couple pieces sheet metal making sure straight true ______ 5/3 STABILIZER DIHEDRAL SKID 7-34 TA ILS K ID 7K51/2 21/4C - STAB 3/1K SO HARDWOOD-C VI HARY BALSA STAB STIFFEN BY RUBBING K B POLYESTER INTO GRAIN COVER WITH 2 07 FIBERGLASS CLOTH P2 ROSSII OR TUNED PIPE --4 \ 047 COWL ALIGNMENT PINS -lFi S-D2 TIE-DOWN BOLTS L/IK PLY TANKI SHIELDCIi II 1W ROSSI IS MK III I ENGINE L i 1 REMOVABLE COWL I CARVED FROM BISS BLOCK 1-1/21-1/4 9CUSTC*4 2BO AWM VENTURI L4 ALUM TUBE /1HEASPIPE COOLER OZUS I/B COOLING SLOT SIDE VIEW DSK CF PROPELLER 0I2345B Rough up inside bonding surface wing ooarse sandpaper bond Goodyear Pliobond Clamp wing between two pieces 1-in angle iron good-sized vise Align carefully until get desired airfoil section slight washin effect Clamp last /16 trailing edge get true symmetrical airfoil no polywog Clamp full length wing small C-clamps spaced 6 bake 3500 oven hour half An alternate method ofbondingthewingistouse 3M 2216 gray epoxy clamp same manner Use little possible weight will build up quickly Belicrank Cut out bellcrank piece 030 CRS shown draw ing sure bush holes brass tubing Cut slot boss provided Lenzen pan accept bellcrank crank anchored 4-40 flathead Allen screw tapped pan make smooth bearing surface bellcrank run some solder approximately 080-in over threads come contact bushing 74 Model Aviation authors Rossi features modified needle valve custom-shaped 265-in alumi num venturi custom speed pan available Jurgen Lenzen West Germany bellcrank resides beneath fuel tank Two mounting studs hold tank place Full-Size Plans Available. See Page 180 FRONT VIEW 5-56 1/4 BUTTONHEAD WING RET SCREWS S8 oR~LDRAM-FILL T VIEW RAME- 43/IS A FR I/G HITH METALkILW I/R4I4V8 TOP VIEWSIDE VIEW FUEL TANK DETAIL BUILD FROM 006 TIN FILE IN TOOMODIFIED SCREWORIVER NOED FLAT 070 CUT EEDLETOI070 SLOT NEEDLE VALVE MOOS S/IA BIL SILVER SOLDER TOOl-WOO RUTS-I FOI9MED -S/4 oS/B L52 BRASS PUSHMOD SUITES ITYPI 3D OCOCK LINK SASS EM BLY 0235 CLIP ASSY PRATHER 4OBO C/IA PLYNDOO TAKF-OF flOLLY Ho-oH SIDE VIEW FUEL4-40 BELLCRANI BOLT FU00ROO SHIELDTAP 1004 v4-2BLOCATION PORTIONBELLCRANK 030 CRSD -D 6-32 TANK MCUNTING STUD -1/10 PLYWOFIU E -E N 0 GJBAO TA IWO EEL 10-S/A---COVER ALL WIRE IN CONTACT MED SIZE__SILICONE TURING SCALE I/S SIZE II/R MUSIC WIRE N-I/A TO MODELWIRE 01-1/2SAAPE FRONT B REAO 3/30 TAILTRAFCRACCES TO SUIT MOSEL WIRE ____2-3/4 OUBRO S/I/U SOLDER WASHERS ROTH SIDES FRONT VIEW F-IF-2010 2024 ALUM WIND PANEL 1 TANK MOUNT_________AVAIL FROM SACKETT PRODUCTS SSBOO 02294 BURNOOT BC CANADA VSC -SF7 PANEL DIM 3s 3/4o ST-I/B LA Do5/4 VASS MONOLINE 30K UP BUTTONS TOP VIEW SPAR FORMED FROM 3/B -6061 TO ROUND STOCK THREADED TO PAN LEADOUT GUIDES FROM FLATTENED I/H BRASS TUBE SIDEWINOER PAN AVAILABLE 3URGEN LENZEN ALFRED-TOBBERT 575600 WUPPERTAL 2 W GERMANY 1/16 PLY PIPE/TANK SHIELD N SLEEVES GASS TUBING - A-A ______________ CUT BACK WING FILLET TO ACHIEVE CMENSION U-S/A 025 3/0 __ -045 II-236 WITSIF 035 DIAz-F-F TAILS KID REPLACEABE 078VOW OF PAN SlIOSRISO POSITIVE WIRE SKIDREID GMENSIONS-WINN 0 ROILT MODEL AVIATION EAI C/L SPEED WIND SPAN37DESIGNED B DRAWN BT WING AREA 716950 INCHRIS SACKETT STAB AREA2BBBSO INTRACING BY LENGTH19JOE DEMARCO WEIGHT20 TO21 OZ CANADIAN NATiONAL RECORD HOLDEI9 Cut out exit holes pan wing fillet area control lines lines attached using small Monoline buttons hooked up 047-in lead-outs see drawing Finally drill tap two 632 holes tank mount Finish shaping pan externally until get exact shape want lap engine mount surface some emery paper oil plate sheet glass Square mating surfaces true up much models favorable flying char acteristics will depend upon alignment entire model based around basswood crutch great care should taken get stab mount ing surface square thrust line Start laying out centerline both sides Ys-in crutch work solely reference line Beginning square edge locate cut stab mount area should sit 70 dihedral angle h-in below centerline crutch Its easier keep everything aligned work table saw can cut hand youre accurate Lay pan crutch centering Continued page 166 January 1987 75 variety slnglebiade carbon fiber props Lenzen counterweights Props ob tained varlousspeciaiity manufacturers theones range pitchfrom 54to59 Bought Colored Fuel Line YOU DEFINITELY PAID TOO MUCH Pay Fancy Colors ON ENGINE DETERMINES REQUIRED TUBING DIAMETER EXTRA LARGE 125 iD 250 001 SH-616 2FTPKG $135 SII-661 2$ FT ROLL $1325 LARGE 093 10- 215 GD SH-2901 FT PEG$ 89 SH-646 2 FT PKG 111$ SN-291 2$ FT ROLL $1295 MEDIUM 062 ID- 156 ODl 54-2851 FT PKG$ 90 SH-545 2 FT PKG $110 SN 28925FT ROLL. $1195 FUEL FITTING SIZE * Heat-Proof will melt resting dIrectly hotteSt part running model engine Wont Harden Fuelil'~ 9111 Resistant Cuts TearsNOT FOR GASOLINE Sig first introduce silicone fuel line tubing model aviation market way back 1964 premium tubing still comes its original natural white color Some competitors would have believe ad ding blue red yellow dye tubing charging higher price makes product better dont believe Sigs original silicone fuel tubing has important characteristics need quality fuel line None Better Any Price OR COLOR See dealer first available order direct Call 800-247-5003 toll free orders Latest Catalog $300 SIG MANUFACTURING CO INCMontezuma IA 50171 Say8 th8t old TinierjtGI st 550115 Gte1W$OflFrom this. peEt VtUQ. 1-eES TaOtS Mole 4 Ignition Engine Parts Only Over 600 items Send $200 current catalog performances Championships showed aeromodeling sport can unite competitors countries no matter good individual may perform love talking about model airplanes should also remembered dont go wont learn learning essential part improv ing performance contestants finished following order best speed kilometers per hour listed 1 Kalmikov USSR29363 2 Piskalev USSR28800 3 Mult Hungary 287534 Dodge USA28639 5 Choj nacki Poland28639 6 Szegadi Hungary 285267 KohaniukUSSR28191 8 Molnar Hungary28059 9 Rachwal Po land27993 10 Schuette USA27734 11 Novakowski Poland27522 12 Ding PRC27231 13 Zhu PRC27231 14 HalmanUK27 149 15 LiPRC 27027 16 Assen Bulgaria26905 17 Kabakov Bulgaria26745 18 Kales Yugo slavia26548 19 Bianchi Brazil26 181 20 Matilainin Finland25714 21 Schmidt FRG25622 22 Hrustanovic Yugo slavia255 34 23 Hiern Australia25495 24 Rosenhan FRG25263 25 Magne France25 174 26 Brewin UK25 122 27 Bilat Switzerland24879 28 Borovac Yugoslavia2481O 29 Borer Switzerland 2474230 Bontcev Bulgaria24590 31 Metkemeyer Netherlands245 2332 New ton USA24406 33 McGalddery UK 2435734 Bertin Brazil24324 35 Fall gren Sweden24096 36 Christen Switzer land23952 37 Rietbergen Netherlands 23952 38 Kjelberg Sweden23809 39 Valo Finland23560 40 Wake Australia Great Planes Big Stiks offer quality ease r assembly superior flighf characteristics never before available stik style models Features include notched interlocking die machine-cut balsa plywood parts fast accurate construc tion hardware Additional hardware included either tricycle talidragger configuration Three versions available 53 span 20 size 59 span 40 size 60 size require 4-channel radio Available al KATPIAftIIi Leading Dealers ~JELE Nalionwide P0 5ov721 U va IL 61801- 23047 41 Fagerstrom Finland22929 42 Hanting Australia22332 43 Pinho Brazil0 Thanks once again David Brewin member UK Speed team report Gene Hempel 301 N Yale Dr Garland TX 75042 CL Racing/Ballard Continued page 70 fiberglass/epoxy prop means epoxy curing agent mixture improper prop should sent back manufacturer refund/replacement addition inspec tion fiberglass strands blade shows minimum amount strands hub area prop will certalnly prone shrinking under heat pressure high-winding Rat engine end flying day always take props Ive used inspect front strong light see internal cracks alr bubbles may produce crack subsequent failure also look hairline cracks around bubbles locked epoxy could lead blade failure As always solicit comments ideas photos John C Ballard 10102 Kimblewick Dr Louisville KY 40223 responding advertisers mention read about ModelAviation Wi Idf ref Sackett Continued page 75 carefully taCk-glue position using few drops cyanoacrylate CyA Draw outline fuselage rough-cut toshapeNexttakeapieceoflx lx 10-in medium balsa tack-glue position tailpiece outer shape fuselage can sanded final shape leaving area re movable cowl unfinished Break assembly apart clean pan mount enginetaping up openings keep dust dirt out until shaping work completed Locate four tie-down holes drill out little oversize accommodate brass tubing glue tubes place slowdrying epoxy such Hobbypoxy 2 ensure accuracy wax tie-down bolts insert position gluing tubes Use elastic bands hold pan crutch position Let whole thing dry least 24 hours Take assembly apart use coping saw cut out center crutch outline shown drawing Decide whether wish enclose engine lugs completely fuselage cut around suggest enclose engine completely tends weaken crutch severely otherwise slight amount material will have removed lugs Rossi 15 accomplish Cut lugs back ~ia inside pan leaving enough material crutch adequate strength cowl formed blank straight-grained basswcod prefer wood cowl over fiberglass lay-up better vibration-damping strength Start cutting out engine hole diameter Ys6 larger head Use circle cutter rough-clearance inside allow cowl accept engine Rough-shape outside approximately er around shown drawing tack-glue crutch blend rest fuselage Break apart install pipe clearance inside ap proximate thickness Y32 in pipe area front should solid 166 Model Aviation FIBERGLASS COWLS 70 cowls eelpants Sig Pica Top-Flue Jesce Nosen PIlot Stafford Radials Bebrens Garmhausen W E Tech other kits plans One-piece laminated construction handlaid fiberglass strong lightweight Send SASE price list please inclpde names models interested parts br call between 9AM o PM EOT informatIon COO ordering hope hear veul FIBERGLASS 703 890-6017 iI1lept~tii Ba 530 Geodview VA 24895 possible Shape sand cooling slot venturi opening As may have noticed needle valve exits right cowlcrutch parting line So remove needle valve disassembling model needle shortened modified will covered later Stabilizer quite important build light yet very rigid stab assembly order get center gravity CG correct Select piece stiff medium-hard %6-in balsa cut shape stiffen i/u-in sq spruce hardwood Use slow-drying CyA Sand perfect symmetrical sec tion cut out elevator area elevator used original all-metal type built correctly will resist failure vibration fatigue Simply solder up frame shown plan use Sta-Brite fold over 010-in aluminum skin Cement place 3M 2216 epoxy control horn cut bit 0 30in CRS bushed 055-in pushrod Check sure height horn axle pushrod exactly /6 model may too sensitive Carefully attach elevator stab gluing i/n-in tubing ends axle slow-drying Hobbypoxy 2 sure dont glue down elevator wax areas Chapstick glue needed dry sand smooth stiffen stab couple coats thinned K&B polyester resin rubbed grain cloth Three thin coats should fine Further stiffen stab covering 2oz fiberglass cloth resin dry sand off lumps finish two coats clear resin Test-fit stab fuselage Hollow out enough material crutch allow control system work smoothly hollow tailpiece thickness rod must installed elevator attaching stab crutch Coat control areas Chapstick glue place pusbrod two-piece affair allow disassembly ship back half cut approximate length can now install two /16 ply formers two i/n x pushrod guides As shown draw ing pushrod runs close inner edge fuselage Bolt whole assembly together hand-fit pushrod its proper position Fine adjustments can made resoldering quick-links along pushrod adjusting threads Before gluing tailpiece good idea fuel-proof tail section few coats clear epoxy dry check smoothness operation system must precise little no play otherwise flying becomes erratic high speeds sloppiness fix now Carve sand pipe area like get nice smooth seat float pipe attached englne head pipe somewhat floats fuselage use two small 031-in wire hooks attached head pipe around front engine small spring way mount tuned pipe avoid bending breakage Test-fit /16-in tank shield ad justing come close possible pipe touching necessary because youll need room can get tank adjustment satisfied glue place tank shield important prevents fuel becoming heated during flight Install 055-in skids stab fuselage keep pan good alignment during hard wear tear ships receive glue four alignment tabs made /u ply Put two very front pan two rear make perfect fit like actually mold mixing up filler epoxy glue finely-chopped fiberglass cloth dabbing over tabs waxing pan can now put crutch-pan assembly together tie-down bolts dry will break apart perfect-fitting pan no play cowl mounted ship Prather DZUS clip 047-in wire hooked crutch Finish have found K&B Super poxy system works best providing tough durable fuel-proof finish begin treat bare wood surfaces reball RIC Idle-Bar Glow Plugs Long Short$1 89 Also. Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal $149 Only Swanson Associates PO Box 151 S,x 1948 Wayne NJ 07470 Remember 40 Wing 15 25 Engines Dealers ributors Welcomed Phone 703 273 9593 FLYLINE MODELS INC PO Sex 2136 Fairfax VIrgInia 22031 U 5 January 1987 167 ~----- YS Engines Parts Atlanta Kits Challenge IV Kits Hattori Pipes / Headers FAT RC Pattern Specialties PO Box 388914-248-8603 Lincoindale NY 10540 4 Classic R/C Scale TI4 SGRAT LAKES CORPORATION St tsA g0245 SANDER ADJUSTABLE TENSION HAND RFLT cAlibER MINI-STRIPSPRECISION DIE-CUT Medium Garnet SAVES TIMEREPLACEMENTFinn Garnet AND EFFORT 8165 SANDING BELTSAsstd Water Print TEE e BAR ALUMINUM EXTRUSION SANDING BLOCK tar use RUFF-STUFF Sell adhesIve sand paper Large True Surface Wee tWearOut 11 Inch 8251 Handy Use 22 Inch 8375 RUFF F ELF ADHESIVE SHEET MAKE SAN OMPER YOUR OWN SPECIAL SANDING SHAPES Easy Use Medleer Fine r Pine $39 Ho glee er drying MINIisAw $79 COMPACT 10 inch HACK SAW SAWS ANYTHING ANYWHERE Saw has rugged die-cast frame corntprtable chip-pruet plastic seal handle RecedIng nun sad ad testable B bled gives good work access Cats wood plestic metal HARDENED MUSIC WIRE extra hlades-SI$199 Add 20% postage Send 25 cotlog three coats K&B polyester sur facing resin thinned about 50-50 Spray couple coats K&B primer sand smooth spray favorite color thinned 200% get really smooth shiny look have spray very fine coats wet look really quite simple little practice can achieve out standing results Fuel system fuel system com monly used worldwide simple pure suction method Most other forms fuel delivery have inherent inconsisten cies inconsistency last thing need models fly tremendous speeds tank shown drawing must no wider /i Otherwise weight fuel centrifugal force will make difficult get engine lean enough optimum setting tubing h-in brass should cover pickup tube tank fine screen prevent air bubbles entering fuel line tank must float mounting studs totally free metal-to-metal contact pan achieve running large-size soft sili cone tubing inside 5/su-in brass tube mounting brackets using small rubber groinmets caps ends tank located adjusted using 632 aircraft nuts washers mount ing studs Make sure use grommet fill line passes through pan venturi diameter will probably determined individual model should try run large opemng possible still have enough fuel draw get off ground Start out stock Rossi unit enlarge around 280 like can increase performance adding air-collecting funnel exist ing venturi help supercharge mix enters crankcase can achieved gluing piece aluminum tubing existing venturi flange epoxy machining out bar stock Engine Wildfire built around Rossi Mark Ill engine good racing 15 will work OPS 15 good choice Cox K&B engines will fit spacious Leazen pan just fine Start rework carefully disas sembling engine inspecting parts remove bearings heat oven 300 lightly tap case bearings will fall out freely Remove casting steps main bypass areas crankcase Dremel tool polish Rossi pretty good engine out box rework should need case latest Rossi pipe-timed engines coming through revised crank liner timing figures crank should open 350 after bottom dead center close 650 after top dead center Crank work starts boring out inside diameter about 300 Radius internal areas fuel flow FLYING SCALE MODEL RIC PLANS Super Detail e Photos Instruction Sheets _ h Plans 19163 Shadowood Dr Send SASE foe listMonument CA 80132 * SCALE DOCUMENTATION * SCALE DRAWINGS MODEL PLANS PHOTOS BOOKS EPLA-TECI-I AIRPLANE CATALOGINTERNATIONAL ova ioo PAGES48500 MC KENZIE HWY S3OOVIDA OREGON 97488 Vacation 5C W0305D Handy Dissey World Kennedy Space Cester sod rent Florida 3 Bedrooms sleeps 8 Kitchen A/C Pool Tennis sod lots li/C flying Nov-May 5500 wk / June-Oct 0450 wE / sightly monthly rates also available R17 5284045 sheen w/accessorses UTNES $2795 Up PeeciStOfi Tools Book Metale StOO Cubing CAVPIELL FGLS CG 210CM SeIne Rd BpnlngflehdOtrlo 48506 513-322-5562 Mae eG MAoeees ew MOP SIIPPLID 5 For Avwson Models ANDINC III 100 W 20525I M eosd, Nan C,oOogs 01304-562 3030p j SeOfr ,,Oerfordn odqoOk,nla& o1 Ito BOX 42B5PTLANU N C28776 CARBON MAT SAMPLE 2 OR 5 OZ/SQ YD SEND $100 EACH TO AEROSPACE COMPOSITE PRODUCTS PO Box 16621 Ervine CA 92714 PSAW DIESELS Englands Finest 049 35 RJC STD Send $100 list Eric Cluttoni 913 Cedar Lane Tullahoma Tenn 37388 Ia SandSSAEoar complete ito 168 Model Aviation ERSR Padded flats curves Handy Hold Easy Us OUALITY FREE FLIGHT KITS AND SUPPLIES FOR COMPETITION AND SPORT SINCE 1975 Duster inquiriesCatalog 500 invited BLUE RIDGE MODELS. [DCO SKY DEVIL 65 Ignttnon Approxed 90 Day Warraistv - Twin Ball Bearing Crank Americas finest old-timer engine Originally designed Hassad & Havlik replica engine resonic tuning ensures continuous flow power through speed range Look out green one$ goodbye red headT&Ds replica Sky Devil 65 $279 less coil cond & plug alit lesldents add 6% sales tax ORDER DIRECT T&D RESEARCH AssoclArEs 6371 El Cajon Blvd Suite 115 San Diego CA 92115 SI FOR BROCHURE well opening counterweight area shown drawing help atom ize incoming fuel charge carefully cut eight grooves around crank hole back good idea cover crank pin small piece brass tubing protect grinding latest Rossi Mark III engines pipe-timed variety using ABC piston liner sets timing figures 1270 transfer timing 1940 exhaust ideally suited high rpm small prop alcohol-burning models FAI Speed type need to liner smooth out corners transfer boost ports little better fuel flow piston liner assemblies set up very close optimum fits right out box should no need lapping refitting connecting rod can streamlined symmetrical section improve fuel flow should done small jewelers file set using rounded files corners Finish up No 320 paper polish out ensure have good leak-proof seal between liner glowhead first lap liner top flange piece No 400 paper glass remove machine scores take old glowhead lap two together mild-cut polish achieve perfect fit Thoroughly clean parts before reassemble Its good idea scrub parts toothbrush methanol follow ultrasonic cleaner have case should clean free lint Warm up case drop bearings crank Put prop tighten up seat bearings let cool slowly test spin crank should spin freely six seven seconds come stop TDC top dead center binding occurs warm case again tap lightly small wooden block will seat bearings properly new Rossis really precise engines should experience no difficulty step Assemble rod wrist pin piston liner engine dry turn over check binds roughness go engine should feel extremely free except approximately 040 TDC liner taper cinches piston set up head clearance mark deck height TDC compare depth plugs using various shims try achieve head clearance 022 024 start withor maybe little Later flying can play dimension attain maxi mum power particular combina tion backplate used stock comes although some guys have success shimming out 040 050 aluminum spacer engine needs very little break inmaybe 10 15 minutes fast four-cycle hops Bolt 7-3V2 prop cut 6-in diameter run fast rich no pipe first 10 minutes needle holds steady try few peak runs check rpm tachometer should read figure around 27000 maybe 28000 good engine Attach Rossi No 2 pipe bring up peak take reading rpm figure should around 34000 35000 An engine will turn rpm good high 1 60s right prop An engine tachs 33000 will fly FAI ships around 158 mphvery competitive what Rossis will turn right out box wish can pass up engine modifications initial flights get feel airplane modifications later can note difference Propeller Single-blade carbon fiber some cases hardwood props have accepted standard FM Speed flying since found way go fast alcohol through high rpm number companies produce props different styles pitches Try 62-in di ameter 54 5-in pitch best results Mark III Rossi Jurgen Lenzen has copies famous world-record-holding Hungarian desigus well number own prices very reasonable about $5 Props also available Walt Perkins Bill Hughes myself Dolly Construct dolly shown note too asymmetric help balance model dolly January 1987 169 -uriumaflCe System Tar iuP PERFORMANCE K&B ENGINES AirplaneManne K&B FUELSK&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER P0KV RESIN K&B SUPER P0KV THINNER K&B SUPER P0KV PRIMER K&B SUPER FOXY PAINT K&B MIXING CUPS __ ADVANTAGE HORNET Strap yourself Americas first digital fighter Follow Hornet through design testing Come board aircraft carrier qualification weapons testing US Navy USMC Allied squadron training deployment Get Hornet handlers view cockpit move sky around See two types fighter pilots. fly Hornets wish didl! Video Running Time 45 Minutes Specify Beta VHS Send Cheque Money Order To GareexProductlonsOept T 460 Grandview Ave London Ont N6K 2T5 us canada add 5350 shp 5 non Oni Oesdenls add lOb POT $499 Inclode Visa o MC# nook den tlCa5on C Eopi5 Oaie Allow 23 weeks delivery SHIPPED DUTY FREE INTO USA ensure good tracking line tension dur ing critical takeoff period Take time build very true straight unit solder joints pre-soldered wrapped fine brass wire soldered Sta-Brite equivalent high-tempera ture solder making dolly sure slip some silicone tubing over areas come contact airplane before final assembly Flying Check model carefully make sure everything solid operating 100% two lines should double looped prevent chance ends opening up causing disaster Two-line models quite safe Monoline AMA models use very large wire diameters easy maintain safetys sake always inspect lines before flying kinks other signs wear begin approximate needle valve setting strap standard bench test prop fill tank fire up engine After slight warm-up period engine will hit pipe dramatically Adjust needle full-peak run slightly rich side shut off engine placing thumb over back pipe open needle another one-quarter turn bolt flying prop Youll ready first flight make fuel system work correctly must first understand tank position sets needle flight adjustment should make needle get setting necessary become airborne Fire up engine let warm up about 10 seconds raise nose slightly lean out pre-stage pipe Once engine picks up lower stage pipe will have enough power launch Hold elevator neutral until sufficient speed attained lift out dolly usually one-half three-quarters lap release model engine floods out rich flight move tank outboard slightly about 0/is try again until steady full-peaked run achieved engine runs lean hitting pipe off move tank inboard slightly go again small amount Wind Direction Anytime Anywhere B FLYMj SOCK 5 inches plus tails Attaches antenna mast Iclips includedi Available frequency colors IGive frequency number orderl $95 plus5&H66jj ForaignordersaddS&H$150 Calif Residents add 6% tax Jeffla Products PO Bex 484 Lake EIsInore CA 92330 fine tuning like will find optimum setting very easy come should very consistent FAT Speed tremendous challenge Just coming up good-flying airplane reliable fuel system half battle Wildfire solid good-flying ship allows concentrate other es sentials such engine propeller build model carefully follow directions shouldnt hard become competitive eventually join world class competition Give try Speed equipment suppliers/information North American Speed Society PO Box 82294 Burnaby BC V5C 5P7 Canada Topflight detailed information phases CL Speed flying Quarterly publication $1 5/year Ed Chris Sackett Jurgen Lenzen Alfred Dobbert Str 57 5600 Wuppertal 2 West Germany Speed pan Wildfire Speed model FAT single-blade props metric-size lines Sackett Products PO Box 82294 Burna BC V5C 5P7 Canada Aluminum wing panels carbon fiber props Rossi Sales America 1325 Carol Dr Memphis TN 38116 Rossi 15 MK III engines Rossi 15 tuned pipes glowheads Shadow Racing 1100 SE 28th St Ocala FL 32670 FAT single-blade propellers carbon fiber special prop-making epoxy Kelly Props PO Box 38 Western Springs IL 60558 sizes FAT single-blade props glass graphite Mall Show/Nunes Continued page 77 Ask manager tables barriers tablecloths etc available use display mall location provides materials set up take down finished mall area does provide items mentioned will have take steps locate secure items 170 Model Aviation SWEITZER ENTERPRISES KI CATALOGS PO BOX 834HILLSBORO OR 97123 PLANS----52OO RESEARcH cENTER--$250 3-VIEwS PHOTOS & MANUALS PHONE 503640-5102 i/4 SCALFOPT22 Kits WINGSPAN 901/4 GINEBASIC KIT 2- 8 Balsa fuselage wings----$ 325 DELUXE KIT Fiberglass fus balsa wing- $375 INThODUCTORY br radialPRICES engine notflPRICE INCREASES AFTER incladadEEU els 1587 ADD $ 24forNOTE $ISO deposit fullpaymentORDERS SHIPPED AIR MAIL isreqd reserveyour order 6 1986 h.