SFC __ne cant really tell fuselage flying surfaces made foam has shaped hot-wire method Adequate strength provided system developed author covering silkspan double-covering mostly finishing thinned white glue called Nudope Build low-cost Sport 1/2A Free Flight foam techniques perfected author Its less expensive balsa just strong Normal full-size plans arent needed unique construction method FF model created especially beginners master FF Power designerE Ron St Jean HAVE DISCOVERED within myself two driving forces guide life desire assist others enjoying thrill successfully flying Free Flight Gas model first time 2 desire help myself others save buck Driving force No 2 probably stems fact maternal grandfather Scotch descent has now made much important forces flation own mother used refer Grandpa Jones still teenager Its Im cheap Im just inex pensive things would rather have said scientific terms thoughts represent new epitome cost-effec tiveness two forces combined author Alpha-One resulted Hopefully will permit people ages enter ranks Free Flighters simple inex pensive enjoyable way design such probability success high cost absolute rock-bottom perform ance moderate reed-valve 049 en60 Model Aviation Ron St Jean gets off another flight fun-flier uses eye-dropper fuel tank limiting engine run thereby avoiding expense complication timer Pictures Allen Smith gine friend suggested model would have appeal looked like real airplane made way complete tail-dragging landing gear orig inal ship fully-adjusted third flight almost lost flew unanticipated thermal 15 20 minutes second model flew right off board too New enjoyment being found slow-climbing FFs Perhaps flying fun because get watch climb longer look like real planes flight Once transitioned glide thermal just well anything else would guess much added enjoy ment also due reduced risks fact ship lost does lose much terms dollars SFC Structureless Foam Composites construction replacement time effort also minimums fond hope FF clubs will pick up Alpha-One use ginner projects Much learning could take place very little expenditure en gine could come old Cox plastic RTF CL model such PT-19 l5 syringe used instead $15 timer rest materials dont amount hill beans wheels can come same old CL model engine may made inexpensively /16 ply wood thicker desired short length /16-in ID brass tubing Should beginners club have much fun success ships decide have contest would suggest no maximum engine run flight score would merely calculated dividing total time engine run both seconds scheme will expensive timers continue un necessary shorter engine runs nor mal could used no penalty flying small fields wind anticipated Foam-cutting Unless have band saw would suggest patterns cut matt board art supply store instead plywood wont last long set can made much quickly gluing registration blocks onto top camber patterns sure make right-handed left-handed Should equipped cut foam sheets rud August 1983 61 Eye-dropper tank stopper curbs loss fuel allows easy filling Engine old Cox PT-19 Landing gear sewn 1/16 ply plate reversed forward plans show Fwnning snuffer tube angle fuselage rear allows fuse pulled out Steel aluminum yardstick fine-line marker such Flair handy laying Out foam blanks preparation cutting Wire-cutting blank length Guide workbench provides square cut Actually cutting tool can used rough-shaping foam Complete pattern set SFB Alpha-One Made matt board plywood first step Full-size patterns included wing stabilizer cambers rudder front stabilizer hook Its simple matter scale off dimensions fuselage N /090C900 S0000000000/ FIREWALL DETAiL\ 000090RE/ / LANDING GEAR DETAIL / 0000 090/ S0000000F0NICC 0090007c.. 009000/ /DIHEDRALDE L N 97ooooC0o7 -x 7DT DETAIL 7 77 / /~0 PHA-i 9C09U/ -7 DT DETAIL 2 /7 / oN/ 0 WHEEL DETAIL I/2A FREE-FLIGHT MODEL WING AHEA280sqrn WEIGHT 7-1/2lOoza designed Ron St Jean oziginOl drawing Leonard St Jean traced ink Mossy Gome der /16 balsa may substituted /x-in foam Please refer previous SFC article April 1982 MA pictures hints convert large foam blocks SEC kits general information article also needed guidance mixing Nudope sanding covering filming finished model cutting wing sections identical avoid mix-ups sembling put /02 /i twist panel give trailing-edge washin right washout left will provide completed wing leftturn aileron-type warp needs Construction Once have foam kit cut out sand parts smooth Use plasticbacked sandpaper #150 roughing about #280-320 finishing desired putting radius leading trailing edges described previous SFC article DC Products Perma-Grit0 tool useful sanding Join three wing sections 5-mm epoxy using little possible avoid its being squeezed out ensuring dihedral looks about same tip Use second shot epoxy fill voids dihedral joint necessary after first has cured Using general information provided previously cover wing GM silkspan intermediate weight bottom wing first allowing generous fold-over topat least /2 over lap leading edge /4 trailing edge same top cover62 Model Aviation / / ANbN00EC090R0NO Hot-wire-cutting fuselage sides progress Foam has little-used FF Pattern being pinned foam blank preparatory hot-wire-cutting fuselage sides Spruce lIe sq pieces used pattern convex inflection points help eliminate possible botching hot wire isnt square PIN HOLES-FOR MOUNTING TO FOAM 0 WING BOTTOM CAMBER-2 REQUIRED WING CHORD 6-5/8 0 zzIz 0 WING TOP CAMBER 2 REQUIRED / 1/8 x 3/16 REGISTRATION BLOCKS GLUE TO OPPOSITE SIDE OF 2ND PATTERN 000 STAB TOP CAMBER 2 REQUIRED STAB CHORD 5-1/2 STAB BOTTOM PATTERN-2 REQUIRED 0 N / F" ~1 NOTE ALL PATTERNS ARE MADE FROM 1/8 PLYWOOD OR ARTISTS MATT BOARD ONT STAB HOOK RUDDER OUTLINE TALLER RUDDER NEEDED IF POLYHEDRAL WING IS USED FULL SIZE PATTERNS ALPHA ONE WING PLAN I15 IF ADDITIONAL STABILITY IS DESIRED CUT WINS HERE OLOCK-SANS ANGLES OR ENDS AND REJOIN TOTAL DIHEORAL AT EACH TIP IS 4-I/D I15 5-I/O ing lap over onto bottom dry sand lightly regular #150 paper put second layer paper both sides center section using about same overlaps will provide four thicknesses silkspan both leading trailing edges center section ter panels will have two layers stabilizer covered similarly except second layer paper used leading edge reinforce front ply wood hook Make about 3 wide ex tending aft leading edge LE about 11/2 Again generous overlaps should provided result four layers paper right LE Single-cover rudder allowing minimum overlap because curved edges surfaces dry sand apply second coat Nudope sand IIS~ STABILIZER ALPHA-ONE DIMENSIONS 0 0 1 4 5 E again thoroughly dry Double-cover entire fuselage except bottom landing gear mount installed very front Use -in /4-in overlaps Cover fuselage before installing firewall Add third layer paper forward LE stabilizer will perhaps three inches extending aft point another inch will strengthen otherwise weak spot plastic film used Alpha-One would appropriate point film wing tail sur faces following general instructions provided previously Epoxy rudder stabilizer Cut IA6inwide /2-in-long slot frontcenter stabilizer epoxy front Continued page 151 64 Model Aviation __02A 1 DIHEDRAL NOT TO SCALE IV4h71BIT/B FUSELAGE TOPI 30 B SIB 0/16NOTE ONE BOTTOM CAMBER PATTERNS51/2 TO ESTABLISH CORRECT CURVES 4SFOR WING R STAB PLATFORMS FUSELAGE SID 2/B CAT OUT 9/16HHI Its easy trim off prolections left 1/e sq pieces Author uses razor blade Rough-sanding fine end flat Perma Grit tool Author finds handy Jig made squarely cutting dihedral wing panels also handy cutting downthrust The finished foam authors right hand what will become left hand Authors SFC fuselage simply angled correct degree process fully described April 1982 MA ideal lightweight strong applications airports servicing private aircraft may have can order aircraft supply houses Aircraft-grade dope much thicker available hobby shops will require thinning model use Lanzo airfoils recently received ac companying airfoils Chet Lanzo Chet has recieved requests airfoils several interested parties has generously offered use modeling public drawings coordi nates allow reproduced chord size taken directly original ribs 1-larley Hoffman Harley Chet fly models together Both Lanzo Bomber Lanzo 1937 Nats RC Champ seen occasional meet modelers familiar Lanzo Record Breaker favorite 0-I designs Ive seen eight-footer scaled up 12 feet flown RC-assist Harley has built four versions Lanzo Bomber original eight-ft span plus 74 80 106 wingspans thanks Chet New goodies Ive advised avid Old-Timer enthusiast Woody Bartelt long last producing die cast aluminum timer housings Arden 099 199 en gines Now chance get Arden back service Contact Woody Micro Model Engineering 5600 Portage Road Suite 112 Kalamazoo MI 49002 Ive also received word new pub lication England SAM 35 Yearbook Vol available Lord David Baker 22 Ellington Rd Muswell Hill London N 10 England Seven bucks will bring door postpaid Clarence Haught 3226 Hone vsackle Dr Cocur dAlene ID 83814 SFC Alpha-One/St Jean Continued paqe 64 stab hook place Bend 3-in-long piece A2-in piano wire U shape epoxy rudder-stabilizer junction protrude out rear /2 Cut stabilizer platform either / hard /32 lightweight balsa grain running spanwise should 11/4 wide 5/ long provide mount /6 x a stab-stop block pieces may quickly joined cyanoacrylate glue CyA shaped suit sanded epoxy stab platform fuselage time unless fuselage filmed Perform trial balance model fuselage tail wing engine tem porarily assembled Should plane nose-heavy move engine aft until CG center gravity balance point about /x forward wings TE Carefully saw off excess forward fuse lage necessary point indicated reproducing 5-degree downthrust anglewith no sidethrust Cut out /4 plywood firewall fit front fuselage epoxy place Block-sand ordinary sandpaper feather foam being careful hold block slight angle paper foam will sanded Should firewall little undersize places add epoxy make level foam Nudope third layer silkspan fuselage overlaps firewall run ning aft cabin starts Put fourth layer about /2-in wide just around firewall help secure Put extra coat Nudope entire fuselage once dry trimmed sanded lightly Add coloring desired simulate cabin other trim label name address phone number case model becomes lost done completely dry film fuselage except landing gear stab plat form located front firewall Epoxy stab platform place adding 3-in-long U-shaped piece /32-in piano wire stab bottom fuse lage snuffer tube dethermalizer DI fuse Bend landing gear /16-in piano wire cut out its /16 plywood mounting plate fit fuselage drill /6-in holes ap propriate sew gear plate large needle carpet thread desired have gear forward shown mount backwards Epoxy Continued page 152 RUBBER STRIP FAI RUBBER Made USA SIZES 1/4 3/16 1/82/32 1/16 1mm thick 042 BOXED 16 ounces rubber per box PRICE$1250 per box ppdin USA California Residents Add 6% Sales Tax KSB TIMERS FUEL SHUTOFF 3OSEC $1195 6 MIN DT $1195 SEND 5OFOR 1982/83 CATALOG Model I-POBOX3957TORFlANcEcAgo51o OFF tMtt SMASH SUCCESS TOLEDO! Thousands Already SOLD! 242 PAGES KITS/RADIOS ENGINES/ACCESSORIES TOOLS/SUPPLIES BOOKS/EQUIPMENT Major minor US Manufacturers represented entire product line Technical Descriptions & Prices Photos & Illustrations & Buy Hundreds Scratch Plans Model Aviation RCM & Others An Invaluable Source Book Products Beginner Expert See July 83 Model Aviation Product Review Guide Dealer Inquiries Welcome See Local Dealer Order Direct NAME ADDRESS Send check money order consumers Guide consumers Guide P0 Box 376 Great Falls VA 22066 Send S6B0llncludes osta alhandlina canadian Orders sendInc udes postjhandl Overseas orders sand $786 Includes post/hand MA AUgUSt 1983 151 First Guide Devoted Exclusively R/C Aircraft PRODUCTS FOR THE DISCERNING MODELER Complete Line Exhaust Systems * Tuned Pipes * Muffled Tuned Pioes * Headers uri Mufflers * Expansion Mufflers Helicopter Ball Mufflers * Specialized Exhaust Systems Unsurpassed Workmanship & PerformanCe Nick Zirolis F4U CORSAIR 2 Cu size Engines Fberglass Fuselage & Cowling s aca able roe des go GIANT RIC SCALE PLAN DESIGNS AT 6 TEXAN24 I101,Span$2700ppUSA FOEKOR DR-i27 163Teipa$2500ppUSA F8F REARCAT2w 186Span$2700ppUSA CURTISS p421/ 184Span$2700ppUSA P4U CORSAIR2/ 193Span$2700ppUSA Fiberglass Cow ogs & Cairopes available Send otamp deta 00 brocoores os oar Goer Scale Accessories lOr plans seer Postpaid wtbie tOe UbAl thread contact points mount gear bottom fuselage Add two /g-jn dowel hooks mounting wing twist I/gm drill sharp wire fuselage make holes dowel Nudope landing gear plate stab plat form wing hooks add color seal pores Put extra coat firewall too needed two three coats total fuselage again dry sanded lightly spread thin coat epoxy onto exposed non-filmed surfaces film used brush spray entire fuselage varnish clear Formula U finish coat Mark front stab platform slot Make I/jr wide /4 long accept front stab hook its roles front stabilizer key DI angle limit Adjust length slot necessary rotating tail will pop up about 45-deg angle dethermalize model Cut slot X-Acto similar knife Once through balsa epoxy foam can gouged out clear hook dull tool Mount engine small wood screws sheet-metal screws long enough go through l/4in firewall blindmounting nuts have used instead /o-in firewall adequate No 2 screws 5/o-in /2-in length will fine Should ever strip replace No 4 screw same length Solder wheels landing gear suggest following procedure Locate small #2 brass washers inside Punch small hole thin piece card board single-edge razor blade matchbook cover etc slide onto axle wheel will go should have tight fit Solder washer inside axle working inside cardboard help hold washer prevent solder resin flux running onto axle wheel Once cool enough handle remove card board put wheel remount card board another piece first has come too loose its prior use add another brass washer After soldering outside washer cut tear out cardboard has also provided small amount end play prevent binding Lubricate 3-in-I Oil wheel does turn freely plan always keep engine runs around 15 sec less Icc syringe will adequate fuel tank 2 3cc sy ringe will provide engine runs up 40 seconds morefor long flights En gine runs can also made short measur ing fuel larger tank stock Babe Bee tank another calibrated syringe just tank filling using larger tank cut off 2/2cc mark will hold 2cc stopper added wish able visually check fuel level before launching mount fuel syringe externallyeither piece balsa sanded concave partially embed ding fuselage side such exposed tank found displeasing eye drill hole down through top fuselage center line epoxy syringe hole Cut 2/r-3cc syr inge flush top bottom protrudes just enough get fuel line event tilt top tank forward about 15-20 degrees compensate nose-high attitude under power rubber syringe piston needs some work make breathing stopper Drill punch small hole through hole epoxy thinnest piece tubing can find tubing will allow tank take air fuel level drops Cut tubing long enough provide exter nal handle epoxying tubing stopper put washer just little larger syringe top can grasped pulling out stopper Keep epoxy outside using Cox reed-valve engine other plastic CL model will necessary drill hole tank order get fuel line bottom syringe carburetor just use Cox tank instead syringe controlling amount fuel two cubic centi meters per fill calibrated syringe Should done may wise dis assemble tank engine ensure internal fuel line arranged pick up fuel bottom tank side Pre-flight rigging Check wing en sure still has left-turn twist tended As long eye can discern some twist sighting along bottom probably OK warp some electric heater Mount tail fuselage check approximate 45-degree DT angle shouldnt bind would hold tail down neither should significant side-to-side sloppiness would allow rudder setting vary Some slop piness may removed adding epoxy either hook sides slot both front rear tail firmly tied down rubberbands epoxy two small wooden blocks /e X /ig X stab key rear stab platform has cured again check see stab free go DT position just before gluing two keys adjust tail line-of-sight through rudder goes through wingmount platform about /3 fuselage width point right side will provide small amount left rudder needed partially overcome strong natural tendency model go right under power left turn glide imparted shimming up left side stab plat form small amountup %2 depend ing upon model just make sure some stab tilt dont have look too hard see Check finished model see balance point CG about 1 ard 152 Model Aviation Power Soar New Heights IT-SO Electric Motor 01 Cu equivelent gas engine displacement Send self-addressed stamped envelope catalog ap plication notes Leisure ii DeerspringllrvinelCA 92714 L -COUPON R ORDERED FROM TOWER HOBBIES FIND OUT WHAT YOUVE BEEN MISSING Tower Hobbies best place shop RC modeling needs customers enjoy best TOWER IALordering fast service giant product selection personalized service low discount prices Toll Free Inventory back up regular free issues Tower Talk value-packed private label products available Tower plus much much Give us try today find out what youve missing receive sample what youve missing CALL TOWER HOBBIES TOLL FREE OR MAIL coupon today FREE copy Tower Talk 32 40 page publication gives up-to-date information new products well hundreds low low priced products shown ads really want save money cant afford Tower Talk Please note reg ular Tower customers already receive Tower Talks automatically Mail Tower Hobbies Dept AMA PO Box 778 Champaign IL 61820 ____________________Name _______________________ ITOAIER HOBBIESAddress_______________________________________ POOoIOCO,o90r no6182039 30 ITOLIFREE Con ,oIUSA V go 00605 Al0a & 0o. 000 63L000000cityStateZip -COUPON trailing edge wing Plus minus /4 probably close enough now outside tolerance add some weight whichever end model needed Modeling clay and/or lead good Just dont put clay fingers fuel will getting tail-heavy models engine may shimmed forward another piece plywood similar firewall Once cut size epoxy original firewall Use propeller 6-in diameter 3-in pitch called 6-3 model shops neighbors will put up noise test-run engine home few times developing procedures can control engine runs 5-10 sec after starting adjusting engine Should engine run erratically due vibration causing fuel foam add little hard plastic mesh dish scrubber bottom tank Flying Test-gliding model best done over some long grass available mistakes dont cost much cushioning effect offers Start running against slight breeze dont fly windy days allowing model lift out hand return exercise will tell what approximate gliding speed model whether may have strong tendency stall dive Should stall obvious shim up leading edge stabilizer side front ply wood hook model diving put shim under stab TE making sure does bind dethermalizing action ready make first real test glide Run same speed before launch model nose slightly below level about five degrees Any stall dive correct before noticeable left turn glide flat slightly left ready first power flight Fuel model 5- 10-sec engine run about 1 /2cc give time start adjust engine Put prop backwards flat front convex rear wont pull hard anticipate thermal activity best use DT fuse smolders like cigar will break tiny rubberband holding down tail once embers reach allowing tail pop up spoil glide Start engine Make first flight engine running slowly rich mixture Launch over grass wind horizontal attitude well will climb 10-20 degree angle wing almost level making wide right-hand turn engine quits may stall once twice should go flat glide left OK try second flight engine leaned out maximum rpm OK too third flight should have prop turned around forward normal way Should experience fol lowing problems make corrections indicatedthen try another flight increasing power I If model turns steeply left under power reduce left rudder offset check wing make sure left-turn twist excessive twist excessive remove part before attempt ing another flight Sometimes model will go slightly left lower power wide right high power 2 If turn too tight right bank-angle steep add leftrudder offset after making sure some left-turn wing twist generally change rudder settings slicing off part rear key block epoxy ing other Some would prefer cut tab rudder glue back desired offset angle 3 If model wants loop reduce CLEVELAND GIANT PLANS -- No 1 in oostor flying ogodelo 1/32 1/4 ooe Fo RI -inoinhiog ol. uk bnoooyinobee AnIin old Ii, -C C1 F/F RobbO, Sloso Sooo 1919 oboolf,o donigo oooIoblo Roi Coiloclo eo. yoo 00 oodol, oho folio, pinoolype polo dot holhoog ooinelf ooy long, bo neod $150 fon picoioI oololog Mol oil 0 foloinoIIy peneoled P01bhp hhlonlond pk Ill olon 60, foinoigo 75c {Add $100 fo oj ,oiii Nooe foe N doom, Edoo-dT Po0od---Aooljonn 00 fiodCLEVELAND MODEL & SUPPLY CO 103070 Delnoll Ao, Cinoolond 0110 44102- August 1983 153 TOWER HOES CESSNA 188 AGVGON MANY MORE NEW ITEMS INSIDE PAW DIESELS En g lands Finest 049 29 New low low prices Send $100 list Eric clutton 3816 DeSoto Ave Fort Myers Florida 22905 SHIPPING AND HANDLING sO Page CATALOGUE Up $800 add $150 $200 PP/lot Class $801 $2000 add $225 copy will sent $2001 $4500 add $300 free requested-$4501 $7000 add $350 order over $7000 add $400 HOBBY HORN CA Addresaees add 6% taxSahobby specialtiesna Send MO Visa/MC#Exp 11173 Moran Street [Al Check allow up 30 PO Boa 2212 daya check clearance Westminster Ca 02603 CODExact Charges 7101 193 0311 HdI Cash OnIyIAII UPSI 714 0911253 incidence raising front sta bilizer add weight rear model prevent diving glide Test-glide again confirm changes have ad versely affected glide may also necessary add downthrust 4 If model dives-in under power falls like arrow glide incidence must increased raising rear stabilizer same time add weight nose plane eliminate glide stall Should problem occur under power reducing amount downthrust may answer 5 power pattern OK glide circle too wide shim up left side stab some morethe same amount front back change inci dence setting Should ship appear spiraling-in during glide phase flight widen circle removing some shims Dont confuse however lack incidence described Prob lem 4 Although other patterns may work some modem models will safest stable flown right un der power left glide right left pattern Should experience some difficulty problem covered previous SEC article please feel free direct questions author address phone number given below effort will made help would like try SEC AlphaOne before getting equipped cut foam yourself will provide foam-only kits $18 plus $300 shipping way can prove yourself SEC way go before having make time investment required cut own foam Good luck Ron St Jean 3744 E Nye Lane Carson City NV 89701 tele phone 702 883-2400 Editor max obtain photocopies Ron St JeatIS Structureless Foam Com posites article April 1982 issue ]r $1 00check money order pleasefrom Model Aviation 1810 Samuel Morse Dr Resron VA 22090 CL Aerobatics/Paul Continued pate 65 cables outstanding still best handles Maybe E-Z Just did us favor going out business opened door adjustability performance using handle variables did lot testing several years ago because using six-in bellcranks big control horns now seems lot fliers par ticularly eastern part States have gone heavy-duty control systems East Coast fliers using larger bellcranks l/oindiameter steel rod flap elevator horns fiberglass pushrods cus tom handles etc have another suggestion experi menting handles E-Z Just grip axis straight up down Bob Hunt handle inclined about 10 degrees see diagram find inclinedgrip handle about 10-12 degrees much comfortable suited natural anatomy hand extended flying position comfortable Hunt handle designed like need plane corner little faster try short ening arms overhang will see sensitivity arms get shorter Id like especially thank Doug Stout Rich Siefert Big Jim Greenaway helped handle ideas suggestions technology Anyone wishes contact Windy can 9 Union Avenue Little Ferry New Jersey 07643 tel 201 440-0905 thanks him supplying information about handles certainly agree light handle flies better also like idea having adjustable think can keep handle 75 gm less will have workable solution thats about 2/2 oz appears little confusion availability plans engine work Tom Dixon can contact him Controline Sales Tom Dixon PO Box 27540 Contract Station #7 Atlanta GA 30327 has added following plans list El Diablo Red Reinhardt Baby Barnstormer Half-A Guillow kit Tom-Tom Warrior Veco kits Gob bleswantz Charlie Mackey Argus Steve Wooley own plans Oriental 40 similar 35-size scaled up 40-46 engine Tom recently said has filled several orders customworked Fox 35 Stunt engines see May 1983 column want good 35 summer contact him about various stages rework veteran engine infrwmation stunt PAMPA contaft Wynn Paul 1640 Maywick Dr Lex ington KY 40504 CL Navy Carrier/Perry Continued tjaoe 66 figuration produced option original Profile Carrier Special en gine longer crankshaft will produce better shaft seal provide room carb problem CS conversions short shaft left little room carburetor According literature port ing head configuration have opti mized running straight alcohol fuel may overcompressed high-nitro fuels major advantage new Fox its weight nine oz lightest throttled 36 available beats Supertigre ST 35 fraction ounce engine uses Mark X carb fits square intake boss new carb may fit old Fox CS well engine due out May should able get 154 Model Aviation Horn Span--750 564 Sq SENSOAR glider HOBBY HORN Easlusisel 808ev HORN Kit SENSOAR Glider kit high quality kit Machine sot sanded parts Select quabty balsa spruce Detailed plans ar1tten InstructIons Far THERMAL SLOPE 51 ELECTRIC POWER VALUE PRICED t 51600 OLD 1IlThR NflS bull Parttal 105 P & W Semi-Kilo Cambined full stripwssd plan Now md Wire Window etc Mat Nate may purchased just seoll kits plans-write call prices 1930 Buccaneer54SS1 1938 Cbpper MR t72-$30 1917 Datlaire Sptaer108581 1140 Ranger-fO- $27 1939 Mereury72-$50 1935 Miss Axerica04--SSO 1041 Playboy Jr-54929 1941 Playboy Sr80-948 1938 Power llouse84-943 1940 Sailplane-28- 974 1940 So tongSOSZf 1938 Trenton Terror-2T-432 1139 Zipper54948 1139 Korda Wakefield-44- 117 MIOtPAY MODEL CO SemI-kIlo Csm5lned a/strIp 1938 Plying Quaker84S49 1037 Quaker Plasb07130 1032 Long Cabin78S42 1037 Air Chiet6I-040 STRUCKS 1940 74 Span 135 Sq SEMI-KIT Plan IncI- $3300 new r HIDE Combo IFuII Kit $8300 SCALE PLANS nd ORAWINGS 5 50 HEINKEL HE 1000 62 60s $1000 AlTENTION ERS EPOXY GLASS COWLS FOR NOSEN PICA S/fl AIORGA9I BALSA USA PLATt CONCEPT FLEET HOSTETLER RCM TCRAFT SHEBER PIUS & /a SCALE SIJPER CUB FOEKER 0-7 BOEING PI2 P-2B F4B2 F4B4 SPARROW HAWK GEE BEE MOO Y MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELIAS STARDUSTER Va SCALE J3-BI BABY FLYBABY AIRAMPER PILOT JUWOPAAWW 135 SCAfE 1/4 SCALE DECA THALON PIPER PA-/B ft OTHERS WHEEL PANTS FOR CITABRIA STAROUSTERIL PIUS SKYBOLT LIBERTYSPORT CHRISTEN EAGLE P6E HAWI STEARMAN SnNSON SR-B MULLIGAN ft OTHERS BRAZED TREATEDW1REGEARS6CABANES LARGE SCALE PLANS AVAILABLE Send $100 latest list supply Modelers libergiass parts plansWrite call us T 8 D FIBERGLASS SPECIALTIES 30925 BIOCK GARDEN CfIY Ml 49135 PHONE 313 421-6358 BIG STANDS BIG AIRPLANES Now Can Get Stands Big 1/a 1/3 Scale Airplanes * Holds airplane eaay wing inatallation * Positions plane easy access radio * Disassembles easy transportation STANDARD SIZE12 width front fuse 8 width rear fuse sizes larger atandard aend width dimensiolia custom built stands $1995 plus $300 postage ft handling Send check money order aspee PRODUCTIONS % Harlan Payne R#1 Ina IL 62846
Edition: Model Aviation - 1983/08
Page Numbers: 60, 61, 62, 63, 64, 151, 152, 153, 154
SFC __ne cant really tell fuselage flying surfaces made foam has shaped hot-wire method Adequate strength provided system developed author covering silkspan double-covering mostly finishing thinned white glue called Nudope Build low-cost Sport 1/2A Free Flight foam techniques perfected author Its less expensive balsa just strong Normal full-size plans arent needed unique construction method FF model created especially beginners master FF Power designerE Ron St Jean HAVE DISCOVERED within myself two driving forces guide life desire assist others enjoying thrill successfully flying Free Flight Gas model first time 2 desire help myself others save buck Driving force No 2 probably stems fact maternal grandfather Scotch descent has now made much important forces flation own mother used refer Grandpa Jones still teenager Its Im cheap Im just inex pensive things would rather have said scientific terms thoughts represent new epitome cost-effec tiveness two forces combined author Alpha-One resulted Hopefully will permit people ages enter ranks Free Flighters simple inex pensive enjoyable way design such probability success high cost absolute rock-bottom perform ance moderate reed-valve 049 en60 Model Aviation Ron St Jean gets off another flight fun-flier uses eye-dropper fuel tank limiting engine run thereby avoiding expense complication timer Pictures Allen Smith gine friend suggested model would have appeal looked like real airplane made way complete tail-dragging landing gear orig inal ship fully-adjusted third flight almost lost flew unanticipated thermal 15 20 minutes second model flew right off board too New enjoyment being found slow-climbing FFs Perhaps flying fun because get watch climb longer look like real planes flight Once transitioned glide thermal just well anything else would guess much added enjoy ment also due reduced risks fact ship lost does lose much terms dollars SFC Structureless Foam Composites construction replacement time effort also minimums fond hope FF clubs will pick up Alpha-One use ginner projects Much learning could take place very little expenditure en gine could come old Cox plastic RTF CL model such PT-19 l5 syringe used instead $15 timer rest materials dont amount hill beans wheels can come same old CL model engine may made inexpensively /16 ply wood thicker desired short length /16-in ID brass tubing Should beginners club have much fun success ships decide have contest would suggest no maximum engine run flight score would merely calculated dividing total time engine run both seconds scheme will expensive timers continue un necessary shorter engine runs nor mal could used no penalty flying small fields wind anticipated Foam-cutting Unless have band saw would suggest patterns cut matt board art supply store instead plywood wont last long set can made much quickly gluing registration blocks onto top camber patterns sure make right-handed left-handed Should equipped cut foam sheets rud August 1983 61 Eye-dropper tank stopper curbs loss fuel allows easy filling Engine old Cox PT-19 Landing gear sewn 1/16 ply plate reversed forward plans show Fwnning snuffer tube angle fuselage rear allows fuse pulled out Steel aluminum yardstick fine-line marker such Flair handy laying Out foam blanks preparation cutting Wire-cutting blank length Guide workbench provides square cut Actually cutting tool can used rough-shaping foam Complete pattern set SFB Alpha-One Made matt board plywood first step Full-size patterns included wing stabilizer cambers rudder front stabilizer hook Its simple matter scale off dimensions fuselage N /090C900 S0000000000/ FIREWALL DETAiL\ 000090RE/ / LANDING GEAR DETAIL / 0000 090/ S0000000F0NICC 0090007c.. 009000/ /DIHEDRALDE L N 97ooooC0o7 -x 7DT DETAIL 7 77 / /~0 PHA-i 9C09U/ -7 DT DETAIL 2 /7 / oN/ 0 WHEEL DETAIL I/2A FREE-FLIGHT MODEL WING AHEA280sqrn WEIGHT 7-1/2lOoza designed Ron St Jean oziginOl drawing Leonard St Jean traced ink Mossy Gome der /16 balsa may substituted /x-in foam Please refer previous SFC article April 1982 MA pictures hints convert large foam blocks SEC kits general information article also needed guidance mixing Nudope sanding covering filming finished model cutting wing sections identical avoid mix-ups sembling put /02 /i twist panel give trailing-edge washin right washout left will provide completed wing leftturn aileron-type warp needs Construction Once have foam kit cut out sand parts smooth Use plasticbacked sandpaper #150 roughing about #280-320 finishing desired putting radius leading trailing edges described previous SFC article DC Products Perma-Grit0 tool useful sanding Join three wing sections 5-mm epoxy using little possible avoid its being squeezed out ensuring dihedral looks about same tip Use second shot epoxy fill voids dihedral joint necessary after first has cured Using general information provided previously cover wing GM silkspan intermediate weight bottom wing first allowing generous fold-over topat least /2 over lap leading edge /4 trailing edge same top cover62 Model Aviation / / ANbN00EC090R0NO Hot-wire-cutting fuselage sides progress Foam has little-used FF Pattern being pinned foam blank preparatory hot-wire-cutting fuselage sides Spruce lIe sq pieces used pattern convex inflection points help eliminate possible botching hot wire isnt square PIN HOLES-FOR MOUNTING TO FOAM 0 WING BOTTOM CAMBER-2 REQUIRED WING CHORD 6-5/8 0 zzIz 0 WING TOP CAMBER 2 REQUIRED / 1/8 x 3/16 REGISTRATION BLOCKS GLUE TO OPPOSITE SIDE OF 2ND PATTERN 000 STAB TOP CAMBER 2 REQUIRED STAB CHORD 5-1/2 STAB BOTTOM PATTERN-2 REQUIRED 0 N / F" ~1 NOTE ALL PATTERNS ARE MADE FROM 1/8 PLYWOOD OR ARTISTS MATT BOARD ONT STAB HOOK RUDDER OUTLINE TALLER RUDDER NEEDED IF POLYHEDRAL WING IS USED FULL SIZE PATTERNS ALPHA ONE WING PLAN I15 IF ADDITIONAL STABILITY IS DESIRED CUT WINS HERE OLOCK-SANS ANGLES OR ENDS AND REJOIN TOTAL DIHEORAL AT EACH TIP IS 4-I/D I15 5-I/O ing lap over onto bottom dry sand lightly regular #150 paper put second layer paper both sides center section using about same overlaps will provide four thicknesses silkspan both leading trailing edges center section ter panels will have two layers stabilizer covered similarly except second layer paper used leading edge reinforce front ply wood hook Make about 3 wide ex tending aft leading edge LE about 11/2 Again generous overlaps should provided result four layers paper right LE Single-cover rudder allowing minimum overlap because curved edges surfaces dry sand apply second coat Nudope sand IIS~ STABILIZER ALPHA-ONE DIMENSIONS 0 0 1 4 5 E again thoroughly dry Double-cover entire fuselage except bottom landing gear mount installed very front Use -in /4-in overlaps Cover fuselage before installing firewall Add third layer paper forward LE stabilizer will perhaps three inches extending aft point another inch will strengthen otherwise weak spot plastic film used Alpha-One would appropriate point film wing tail sur faces following general instructions provided previously Epoxy rudder stabilizer Cut IA6inwide /2-in-long slot frontcenter stabilizer epoxy front Continued page 151 64 Model Aviation __02A 1 DIHEDRAL NOT TO SCALE IV4h71BIT/B FUSELAGE TOPI 30 B SIB 0/16NOTE ONE BOTTOM CAMBER PATTERNS51/2 TO ESTABLISH CORRECT CURVES 4SFOR WING R STAB PLATFORMS FUSELAGE SID 2/B CAT OUT 9/16HHI Its easy trim off prolections left 1/e sq pieces Author uses razor blade Rough-sanding fine end flat Perma Grit tool Author finds handy Jig made squarely cutting dihedral wing panels also handy cutting downthrust The finished foam authors right hand what will become left hand Authors SFC fuselage simply angled correct degree process fully described April 1982 MA ideal lightweight strong applications airports servicing private aircraft may have can order aircraft supply houses Aircraft-grade dope much thicker available hobby shops will require thinning model use Lanzo airfoils recently received ac companying airfoils Chet Lanzo Chet has recieved requests airfoils several interested parties has generously offered use modeling public drawings coordi nates allow reproduced chord size taken directly original ribs 1-larley Hoffman Harley Chet fly models together Both Lanzo Bomber Lanzo 1937 Nats RC Champ seen occasional meet modelers familiar Lanzo Record Breaker favorite 0-I designs Ive seen eight-footer scaled up 12 feet flown RC-assist Harley has built four versions Lanzo Bomber original eight-ft span plus 74 80 106 wingspans thanks Chet New goodies Ive advised avid Old-Timer enthusiast Woody Bartelt long last producing die cast aluminum timer housings Arden 099 199 en gines Now chance get Arden back service Contact Woody Micro Model Engineering 5600 Portage Road Suite 112 Kalamazoo MI 49002 Ive also received word new pub lication England SAM 35 Yearbook Vol available Lord David Baker 22 Ellington Rd Muswell Hill London N 10 England Seven bucks will bring door postpaid Clarence Haught 3226 Hone vsackle Dr Cocur dAlene ID 83814 SFC Alpha-One/St Jean Continued paqe 64 stab hook place Bend 3-in-long piece A2-in piano wire U shape epoxy rudder-stabilizer junction protrude out rear /2 Cut stabilizer platform either / hard /32 lightweight balsa grain running spanwise should 11/4 wide 5/ long provide mount /6 x a stab-stop block pieces may quickly joined cyanoacrylate glue CyA shaped suit sanded epoxy stab platform fuselage time unless fuselage filmed Perform trial balance model fuselage tail wing engine tem porarily assembled Should plane nose-heavy move engine aft until CG center gravity balance point about /x forward wings TE Carefully saw off excess forward fuse lage necessary point indicated reproducing 5-degree downthrust anglewith no sidethrust Cut out /4 plywood firewall fit front fuselage epoxy place Block-sand ordinary sandpaper feather foam being careful hold block slight angle paper foam will sanded Should firewall little undersize places add epoxy make level foam Nudope third layer silkspan fuselage overlaps firewall run ning aft cabin starts Put fourth layer about /2-in wide just around firewall help secure Put extra coat Nudope entire fuselage once dry trimmed sanded lightly Add coloring desired simulate cabin other trim label name address phone number case model becomes lost done completely dry film fuselage except landing gear stab plat form located front firewall Epoxy stab platform place adding 3-in-long U-shaped piece /32-in piano wire stab bottom fuse lage snuffer tube dethermalizer DI fuse Bend landing gear /16-in piano wire cut out its /16 plywood mounting plate fit fuselage drill /6-in holes ap propriate sew gear plate large needle carpet thread desired have gear forward shown mount backwards Epoxy Continued page 152 RUBBER STRIP FAI RUBBER Made USA SIZES 1/4 3/16 1/82/32 1/16 1mm thick 042 BOXED 16 ounces rubber per box PRICE$1250 per box ppdin USA California Residents Add 6% Sales Tax KSB TIMERS FUEL SHUTOFF 3OSEC $1195 6 MIN DT $1195 SEND 5OFOR 1982/83 CATALOG Model I-POBOX3957TORFlANcEcAgo51o OFF tMtt SMASH SUCCESS TOLEDO! Thousands Already SOLD! 242 PAGES KITS/RADIOS ENGINES/ACCESSORIES TOOLS/SUPPLIES BOOKS/EQUIPMENT Major minor US Manufacturers represented entire product line Technical Descriptions & Prices Photos & Illustrations & Buy Hundreds Scratch Plans Model Aviation RCM & Others An Invaluable Source Book Products Beginner Expert See July 83 Model Aviation Product Review Guide Dealer Inquiries Welcome See Local Dealer Order Direct NAME ADDRESS Send check money order consumers Guide consumers Guide P0 Box 376 Great Falls VA 22066 Send S6B0llncludes osta alhandlina canadian Orders sendInc udes postjhandl Overseas orders sand $786 Includes post/hand MA AUgUSt 1983 151 First Guide Devoted Exclusively R/C Aircraft PRODUCTS FOR THE DISCERNING MODELER Complete Line Exhaust Systems * Tuned Pipes * Muffled Tuned Pioes * Headers uri Mufflers * Expansion Mufflers Helicopter Ball Mufflers * Specialized Exhaust Systems Unsurpassed Workmanship & PerformanCe Nick Zirolis F4U CORSAIR 2 Cu size Engines Fberglass Fuselage & Cowling s aca able roe des go GIANT RIC SCALE PLAN DESIGNS AT 6 TEXAN24 I101,Span$2700ppUSA FOEKOR DR-i27 163Teipa$2500ppUSA F8F REARCAT2w 186Span$2700ppUSA CURTISS p421/ 184Span$2700ppUSA P4U CORSAIR2/ 193Span$2700ppUSA Fiberglass Cow ogs & Cairopes available Send otamp deta 00 brocoores os oar Goer Scale Accessories lOr plans seer Postpaid wtbie tOe UbAl thread contact points mount gear bottom fuselage Add two /g-jn dowel hooks mounting wing twist I/gm drill sharp wire fuselage make holes dowel Nudope landing gear plate stab plat form wing hooks add color seal pores Put extra coat firewall too needed two three coats total fuselage again dry sanded lightly spread thin coat epoxy onto exposed non-filmed surfaces film used brush spray entire fuselage varnish clear Formula U finish coat Mark front stab platform slot Make I/jr wide /4 long accept front stab hook its roles front stabilizer key DI angle limit Adjust length slot necessary rotating tail will pop up about 45-deg angle dethermalize model Cut slot X-Acto similar knife Once through balsa epoxy foam can gouged out clear hook dull tool Mount engine small wood screws sheet-metal screws long enough go through l/4in firewall blindmounting nuts have used instead /o-in firewall adequate No 2 screws 5/o-in /2-in length will fine Should ever strip replace No 4 screw same length Solder wheels landing gear suggest following procedure Locate small #2 brass washers inside Punch small hole thin piece card board single-edge razor blade matchbook cover etc slide onto axle wheel will go should have tight fit Solder washer inside axle working inside cardboard help hold washer prevent solder resin flux running onto axle wheel Once cool enough handle remove card board put wheel remount card board another piece first has come too loose its prior use add another brass washer After soldering outside washer cut tear out cardboard has also provided small amount end play prevent binding Lubricate 3-in-I Oil wheel does turn freely plan always keep engine runs around 15 sec less Icc syringe will adequate fuel tank 2 3cc sy ringe will provide engine runs up 40 seconds morefor long flights En gine runs can also made short measur ing fuel larger tank stock Babe Bee tank another calibrated syringe just tank filling using larger tank cut off 2/2cc mark will hold 2cc stopper added wish able visually check fuel level before launching mount fuel syringe externallyeither piece balsa sanded concave partially embed ding fuselage side such exposed tank found displeasing eye drill hole down through top fuselage center line epoxy syringe hole Cut 2/r-3cc syr inge flush top bottom protrudes just enough get fuel line event tilt top tank forward about 15-20 degrees compensate nose-high attitude under power rubber syringe piston needs some work make breathing stopper Drill punch small hole through hole epoxy thinnest piece tubing can find tubing will allow tank take air fuel level drops Cut tubing long enough provide exter nal handle epoxying tubing stopper put washer just little larger syringe top can grasped pulling out stopper Keep epoxy outside using Cox reed-valve engine other plastic CL model will necessary drill hole tank order get fuel line bottom syringe carburetor just use Cox tank instead syringe controlling amount fuel two cubic centi meters per fill calibrated syringe Should done may wise dis assemble tank engine ensure internal fuel line arranged pick up fuel bottom tank side Pre-flight rigging Check wing en sure still has left-turn twist tended As long eye can discern some twist sighting along bottom probably OK warp some electric heater Mount tail fuselage check approximate 45-degree DT angle shouldnt bind would hold tail down neither should significant side-to-side sloppiness would allow rudder setting vary Some slop piness may removed adding epoxy either hook sides slot both front rear tail firmly tied down rubberbands epoxy two small wooden blocks /e X /ig X stab key rear stab platform has cured again check see stab free go DT position just before gluing two keys adjust tail line-of-sight through rudder goes through wingmount platform about /3 fuselage width point right side will provide small amount left rudder needed partially overcome strong natural tendency model go right under power left turn glide imparted shimming up left side stab plat form small amountup %2 depend ing upon model just make sure some stab tilt dont have look too hard see Check finished model see balance point CG about 1 ard 152 Model Aviation Power Soar New Heights IT-SO Electric Motor 01 Cu equivelent gas engine displacement Send self-addressed stamped envelope catalog ap plication notes Leisure ii DeerspringllrvinelCA 92714 L -COUPON R ORDERED FROM TOWER HOBBIES FIND OUT WHAT YOUVE BEEN MISSING Tower Hobbies best place shop RC modeling needs customers enjoy best TOWER IALordering fast service giant product selection personalized service low discount prices Toll Free Inventory back up regular free issues Tower Talk value-packed private label products available Tower plus much much Give us try today find out what youve missing receive sample what youve missing CALL TOWER HOBBIES TOLL FREE OR MAIL coupon today FREE copy Tower Talk 32 40 page publication gives up-to-date information new products well hundreds low low priced products shown ads really want save money cant afford Tower Talk Please note reg ular Tower customers already receive Tower Talks automatically Mail Tower Hobbies Dept AMA PO Box 778 Champaign IL 61820 ____________________Name _______________________ ITOAIER HOBBIESAddress_______________________________________ POOoIOCO,o90r no6182039 30 ITOLIFREE Con ,oIUSA V go 00605 Al0a & 0o. 000 63L000000cityStateZip -COUPON trailing edge wing Plus minus /4 probably close enough now outside tolerance add some weight whichever end model needed Modeling clay and/or lead good Just dont put clay fingers fuel will getting tail-heavy models engine may shimmed forward another piece plywood similar firewall Once cut size epoxy original firewall Use propeller 6-in diameter 3-in pitch called 6-3 model shops neighbors will put up noise test-run engine home few times developing procedures can control engine runs 5-10 sec after starting adjusting engine Should engine run erratically due vibration causing fuel foam add little hard plastic mesh dish scrubber bottom tank Flying Test-gliding model best done over some long grass available mistakes dont cost much cushioning effect offers Start running against slight breeze dont fly windy days allowing model lift out hand return exercise will tell what approximate gliding speed model whether may have strong tendency stall dive Should stall obvious shim up leading edge stabilizer side front ply wood hook model diving put shim under stab TE making sure does bind dethermalizing action ready make first real test glide Run same speed before launch model nose slightly below level about five degrees Any stall dive correct before noticeable left turn glide flat slightly left ready first power flight Fuel model 5- 10-sec engine run about 1 /2cc give time start adjust engine Put prop backwards flat front convex rear wont pull hard anticipate thermal activity best use DT fuse smolders like cigar will break tiny rubberband holding down tail once embers reach allowing tail pop up spoil glide Start engine Make first flight engine running slowly rich mixture Launch over grass wind horizontal attitude well will climb 10-20 degree angle wing almost level making wide right-hand turn engine quits may stall once twice should go flat glide left OK try second flight engine leaned out maximum rpm OK too third flight should have prop turned around forward normal way Should experience fol lowing problems make corrections indicatedthen try another flight increasing power I If model turns steeply left under power reduce left rudder offset check wing make sure left-turn twist excessive twist excessive remove part before attempt ing another flight Sometimes model will go slightly left lower power wide right high power 2 If turn too tight right bank-angle steep add leftrudder offset after making sure some left-turn wing twist generally change rudder settings slicing off part rear key block epoxy ing other Some would prefer cut tab rudder glue back desired offset angle 3 If model wants loop reduce CLEVELAND GIANT PLANS -- No 1 in oostor flying ogodelo 1/32 1/4 ooe Fo RI -inoinhiog ol. uk bnoooyinobee AnIin old Ii, -C C1 F/F RobbO, Sloso Sooo 1919 oboolf,o donigo oooIoblo Roi Coiloclo eo. yoo 00 oodol, oho folio, pinoolype polo dot holhoog ooinelf ooy long, bo neod $150 fon picoioI oololog Mol oil 0 foloinoIIy peneoled P01bhp hhlonlond pk Ill olon 60, foinoigo 75c {Add $100 fo oj ,oiii Nooe foe N doom, Edoo-dT Po0od---Aooljonn 00 fiodCLEVELAND MODEL & SUPPLY CO 103070 Delnoll Ao, Cinoolond 0110 44102- August 1983 153 TOWER HOES CESSNA 188 AGVGON MANY MORE NEW ITEMS INSIDE PAW DIESELS En g lands Finest 049 29 New low low prices Send $100 list Eric clutton 3816 DeSoto Ave Fort Myers Florida 22905 SHIPPING AND HANDLING sO Page CATALOGUE Up $800 add $150 $200 PP/lot Class $801 $2000 add $225 copy will sent $2001 $4500 add $300 free requested-$4501 $7000 add $350 order over $7000 add $400 HOBBY HORN CA Addresaees add 6% taxSahobby specialtiesna Send MO Visa/MC#Exp 11173 Moran Street [Al Check allow up 30 PO Boa 2212 daya check clearance Westminster Ca 02603 CODExact Charges 7101 193 0311 HdI Cash OnIyIAII UPSI 714 0911253 incidence raising front sta bilizer add weight rear model prevent diving glide Test-glide again confirm changes have ad versely affected glide may also necessary add downthrust 4 If model dives-in under power falls like arrow glide incidence must increased raising rear stabilizer same time add weight nose plane eliminate glide stall Should problem occur under power reducing amount downthrust may answer 5 power pattern OK glide circle too wide shim up left side stab some morethe same amount front back change inci dence setting Should ship appear spiraling-in during glide phase flight widen circle removing some shims Dont confuse however lack incidence described Prob lem 4 Although other patterns may work some modem models will safest stable flown right un der power left glide right left pattern Should experience some difficulty problem covered previous SEC article please feel free direct questions author address phone number given below effort will made help would like try SEC AlphaOne before getting equipped cut foam yourself will provide foam-only kits $18 plus $300 shipping way can prove yourself SEC way go before having make time investment required cut own foam Good luck Ron St Jean 3744 E Nye Lane Carson City NV 89701 tele phone 702 883-2400 Editor max obtain photocopies Ron St JeatIS Structureless Foam Com posites article April 1982 issue ]r $1 00check money order pleasefrom Model Aviation 1810 Samuel Morse Dr Resron VA 22090 CL Aerobatics/Paul Continued pate 65 cables outstanding still best handles Maybe E-Z Just did us favor going out business opened door adjustability performance using handle variables did lot testing several years ago because using six-in bellcranks big control horns now seems lot fliers par ticularly eastern part States have gone heavy-duty control systems East Coast fliers using larger bellcranks l/oindiameter steel rod flap elevator horns fiberglass pushrods cus tom handles etc have another suggestion experi menting handles E-Z Just grip axis straight up down Bob Hunt handle inclined about 10 degrees see diagram find inclinedgrip handle about 10-12 degrees much comfortable suited natural anatomy hand extended flying position comfortable Hunt handle designed like need plane corner little faster try short ening arms overhang will see sensitivity arms get shorter Id like especially thank Doug Stout Rich Siefert Big Jim Greenaway helped handle ideas suggestions technology Anyone wishes contact Windy can 9 Union Avenue Little Ferry New Jersey 07643 tel 201 440-0905 thanks him supplying information about handles certainly agree light handle flies better also like idea having adjustable think can keep handle 75 gm less will have workable solution thats about 2/2 oz appears little confusion availability plans engine work Tom Dixon can contact him Controline Sales Tom Dixon PO Box 27540 Contract Station #7 Atlanta GA 30327 has added following plans list El Diablo Red Reinhardt Baby Barnstormer Half-A Guillow kit Tom-Tom Warrior Veco kits Gob bleswantz Charlie Mackey Argus Steve Wooley own plans Oriental 40 similar 35-size scaled up 40-46 engine Tom recently said has filled several orders customworked Fox 35 Stunt engines see May 1983 column want good 35 summer contact him about various stages rework veteran engine infrwmation stunt PAMPA contaft Wynn Paul 1640 Maywick Dr Lex ington KY 40504 CL Navy Carrier/Perry Continued tjaoe 66 figuration produced option original Profile Carrier Special en gine longer crankshaft will produce better shaft seal provide room carb problem CS conversions short shaft left little room carburetor According literature port ing head configuration have opti mized running straight alcohol fuel may overcompressed high-nitro fuels major advantage new Fox its weight nine oz lightest throttled 36 available beats Supertigre ST 35 fraction ounce engine uses Mark X carb fits square intake boss new carb may fit old Fox CS well engine due out May should able get 154 Model Aviation Horn Span--750 564 Sq SENSOAR glider HOBBY HORN Easlusisel 808ev HORN Kit SENSOAR Glider kit high quality kit Machine sot sanded parts Select quabty balsa spruce Detailed plans ar1tten InstructIons Far THERMAL SLOPE 51 ELECTRIC POWER VALUE PRICED t 51600 OLD 1IlThR NflS bull Parttal 105 P & W Semi-Kilo Cambined full stripwssd plan Now md Wire Window etc Mat Nate may purchased just seoll kits plans-write call prices 1930 Buccaneer54SS1 1938 Cbpper MR t72-$30 1917 Datlaire Sptaer108581 1140 Ranger-fO- $27 1939 Mereury72-$50 1935 Miss Axerica04--SSO 1041 Playboy Jr-54929 1941 Playboy Sr80-948 1938 Power llouse84-943 1940 Sailplane-28- 974 1940 So tongSOSZf 1938 Trenton Terror-2T-432 1139 Zipper54948 1139 Korda Wakefield-44- 117 MIOtPAY MODEL CO SemI-kIlo Csm5lned a/strIp 1938 Plying Quaker84S49 1037 Quaker Plasb07130 1032 Long Cabin78S42 1037 Air Chiet6I-040 STRUCKS 1940 74 Span 135 Sq SEMI-KIT Plan IncI- $3300 new r HIDE Combo IFuII Kit $8300 SCALE PLANS nd ORAWINGS 5 50 HEINKEL HE 1000 62 60s $1000 AlTENTION ERS EPOXY GLASS COWLS FOR NOSEN PICA S/fl AIORGA9I BALSA USA PLATt CONCEPT FLEET HOSTETLER RCM TCRAFT SHEBER PIUS & /a SCALE SIJPER CUB FOEKER 0-7 BOEING PI2 P-2B F4B2 F4B4 SPARROW HAWK GEE BEE MOO Y MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELIAS STARDUSTER Va SCALE J3-BI BABY FLYBABY AIRAMPER PILOT JUWOPAAWW 135 SCAfE 1/4 SCALE DECA THALON PIPER PA-/B ft OTHERS WHEEL PANTS FOR CITABRIA STAROUSTERIL PIUS SKYBOLT LIBERTYSPORT CHRISTEN EAGLE P6E HAWI STEARMAN SnNSON SR-B MULLIGAN ft OTHERS BRAZED TREATEDW1REGEARS6CABANES LARGE SCALE PLANS AVAILABLE Send $100 latest list supply Modelers libergiass parts plansWrite call us T 8 D FIBERGLASS SPECIALTIES 30925 BIOCK GARDEN CfIY Ml 49135 PHONE 313 421-6358 BIG STANDS BIG AIRPLANES Now Can Get Stands Big 1/a 1/3 Scale Airplanes * Holds airplane eaay wing inatallation * Positions plane easy access radio * Disassembles easy transportation STANDARD SIZE12 width front fuse 8 width rear fuse sizes larger atandard aend width dimensiolia custom built stands $1995 plus $300 postage ft handling Send check money order aspee PRODUCTIONS % Harlan Payne R#1 Ina IL 62846
Edition: Model Aviation - 1983/08
Page Numbers: 60, 61, 62, 63, 64, 151, 152, 153, 154
SFC __ne cant really tell fuselage flying surfaces made foam has shaped hot-wire method Adequate strength provided system developed author covering silkspan double-covering mostly finishing thinned white glue called Nudope Build low-cost Sport 1/2A Free Flight foam techniques perfected author Its less expensive balsa just strong Normal full-size plans arent needed unique construction method FF model created especially beginners master FF Power designerE Ron St Jean HAVE DISCOVERED within myself two driving forces guide life desire assist others enjoying thrill successfully flying Free Flight Gas model first time 2 desire help myself others save buck Driving force No 2 probably stems fact maternal grandfather Scotch descent has now made much important forces flation own mother used refer Grandpa Jones still teenager Its Im cheap Im just inex pensive things would rather have said scientific terms thoughts represent new epitome cost-effec tiveness two forces combined author Alpha-One resulted Hopefully will permit people ages enter ranks Free Flighters simple inex pensive enjoyable way design such probability success high cost absolute rock-bottom perform ance moderate reed-valve 049 en60 Model Aviation Ron St Jean gets off another flight fun-flier uses eye-dropper fuel tank limiting engine run thereby avoiding expense complication timer Pictures Allen Smith gine friend suggested model would have appeal looked like real airplane made way complete tail-dragging landing gear orig inal ship fully-adjusted third flight almost lost flew unanticipated thermal 15 20 minutes second model flew right off board too New enjoyment being found slow-climbing FFs Perhaps flying fun because get watch climb longer look like real planes flight Once transitioned glide thermal just well anything else would guess much added enjoy ment also due reduced risks fact ship lost does lose much terms dollars SFC Structureless Foam Composites construction replacement time effort also minimums fond hope FF clubs will pick up Alpha-One use ginner projects Much learning could take place very little expenditure en gine could come old Cox plastic RTF CL model such PT-19 l5 syringe used instead $15 timer rest materials dont amount hill beans wheels can come same old CL model engine may made inexpensively /16 ply wood thicker desired short length /16-in ID brass tubing Should beginners club have much fun success ships decide have contest would suggest no maximum engine run flight score would merely calculated dividing total time engine run both seconds scheme will expensive timers continue un necessary shorter engine runs nor mal could used no penalty flying small fields wind anticipated Foam-cutting Unless have band saw would suggest patterns cut matt board art supply store instead plywood wont last long set can made much quickly gluing registration blocks onto top camber patterns sure make right-handed left-handed Should equipped cut foam sheets rud August 1983 61 Eye-dropper tank stopper curbs loss fuel allows easy filling Engine old Cox PT-19 Landing gear sewn 1/16 ply plate reversed forward plans show Fwnning snuffer tube angle fuselage rear allows fuse pulled out Steel aluminum yardstick fine-line marker such Flair handy laying Out foam blanks preparation cutting Wire-cutting blank length Guide workbench provides square cut Actually cutting tool can used rough-shaping foam Complete pattern set SFB Alpha-One Made matt board plywood first step Full-size patterns included wing stabilizer cambers rudder front stabilizer hook Its simple matter scale off dimensions fuselage N /090C900 S0000000000/ FIREWALL DETAiL\ 000090RE/ / LANDING GEAR DETAIL / 0000 090/ S0000000F0NICC 0090007c.. 009000/ /DIHEDRALDE L N 97ooooC0o7 -x 7DT DETAIL 7 77 / /~0 PHA-i 9C09U/ -7 DT DETAIL 2 /7 / oN/ 0 WHEEL DETAIL I/2A FREE-FLIGHT MODEL WING AHEA280sqrn WEIGHT 7-1/2lOoza designed Ron St Jean oziginOl drawing Leonard St Jean traced ink Mossy Gome der /16 balsa may substituted /x-in foam Please refer previous SFC article April 1982 MA pictures hints convert large foam blocks SEC kits general information article also needed guidance mixing Nudope sanding covering filming finished model cutting wing sections identical avoid mix-ups sembling put /02 /i twist panel give trailing-edge washin right washout left will provide completed wing leftturn aileron-type warp needs Construction Once have foam kit cut out sand parts smooth Use plasticbacked sandpaper #150 roughing about #280-320 finishing desired putting radius leading trailing edges described previous SFC article DC Products Perma-Grit0 tool useful sanding Join three wing sections 5-mm epoxy using little possible avoid its being squeezed out ensuring dihedral looks about same tip Use second shot epoxy fill voids dihedral joint necessary after first has cured Using general information provided previously cover wing GM silkspan intermediate weight bottom wing first allowing generous fold-over topat least /2 over lap leading edge /4 trailing edge same top cover62 Model Aviation / / ANbN00EC090R0NO Hot-wire-cutting fuselage sides progress Foam has little-used FF Pattern being pinned foam blank preparatory hot-wire-cutting fuselage sides Spruce lIe sq pieces used pattern convex inflection points help eliminate possible botching hot wire isnt square PIN HOLES-FOR MOUNTING TO FOAM 0 WING BOTTOM CAMBER-2 REQUIRED WING CHORD 6-5/8 0 zzIz 0 WING TOP CAMBER 2 REQUIRED / 1/8 x 3/16 REGISTRATION BLOCKS GLUE TO OPPOSITE SIDE OF 2ND PATTERN 000 STAB TOP CAMBER 2 REQUIRED STAB CHORD 5-1/2 STAB BOTTOM PATTERN-2 REQUIRED 0 N / F" ~1 NOTE ALL PATTERNS ARE MADE FROM 1/8 PLYWOOD OR ARTISTS MATT BOARD ONT STAB HOOK RUDDER OUTLINE TALLER RUDDER NEEDED IF POLYHEDRAL WING IS USED FULL SIZE PATTERNS ALPHA ONE WING PLAN I15 IF ADDITIONAL STABILITY IS DESIRED CUT WINS HERE OLOCK-SANS ANGLES OR ENDS AND REJOIN TOTAL DIHEORAL AT EACH TIP IS 4-I/D I15 5-I/O ing lap over onto bottom dry sand lightly regular #150 paper put second layer paper both sides center section using about same overlaps will provide four thicknesses silkspan both leading trailing edges center section ter panels will have two layers stabilizer covered similarly except second layer paper used leading edge reinforce front ply wood hook Make about 3 wide ex tending aft leading edge LE about 11/2 Again generous overlaps should provided result four layers paper right LE Single-cover rudder allowing minimum overlap because curved edges surfaces dry sand apply second coat Nudope sand IIS~ STABILIZER ALPHA-ONE DIMENSIONS 0 0 1 4 5 E again thoroughly dry Double-cover entire fuselage except bottom landing gear mount installed very front Use -in /4-in overlaps Cover fuselage before installing firewall Add third layer paper forward LE stabilizer will perhaps three inches extending aft point another inch will strengthen otherwise weak spot plastic film used Alpha-One would appropriate point film wing tail sur faces following general instructions provided previously Epoxy rudder stabilizer Cut IA6inwide /2-in-long slot frontcenter stabilizer epoxy front Continued page 151 64 Model Aviation __02A 1 DIHEDRAL NOT TO SCALE IV4h71BIT/B FUSELAGE TOPI 30 B SIB 0/16NOTE ONE BOTTOM CAMBER PATTERNS51/2 TO ESTABLISH CORRECT CURVES 4SFOR WING R STAB PLATFORMS FUSELAGE SID 2/B CAT OUT 9/16HHI Its easy trim off prolections left 1/e sq pieces Author uses razor blade Rough-sanding fine end flat Perma Grit tool Author finds handy Jig made squarely cutting dihedral wing panels also handy cutting downthrust The finished foam authors right hand what will become left hand Authors SFC fuselage simply angled correct degree process fully described April 1982 MA ideal lightweight strong applications airports servicing private aircraft may have can order aircraft supply houses Aircraft-grade dope much thicker available hobby shops will require thinning model use Lanzo airfoils recently received ac companying airfoils Chet Lanzo Chet has recieved requests airfoils several interested parties has generously offered use modeling public drawings coordi nates allow reproduced chord size taken directly original ribs 1-larley Hoffman Harley Chet fly models together Both Lanzo Bomber Lanzo 1937 Nats RC Champ seen occasional meet modelers familiar Lanzo Record Breaker favorite 0-I designs Ive seen eight-footer scaled up 12 feet flown RC-assist Harley has built four versions Lanzo Bomber original eight-ft span plus 74 80 106 wingspans thanks Chet New goodies Ive advised avid Old-Timer enthusiast Woody Bartelt long last producing die cast aluminum timer housings Arden 099 199 en gines Now chance get Arden back service Contact Woody Micro Model Engineering 5600 Portage Road Suite 112 Kalamazoo MI 49002 Ive also received word new pub lication England SAM 35 Yearbook Vol available Lord David Baker 22 Ellington Rd Muswell Hill London N 10 England Seven bucks will bring door postpaid Clarence Haught 3226 Hone vsackle Dr Cocur dAlene ID 83814 SFC Alpha-One/St Jean Continued paqe 64 stab hook place Bend 3-in-long piece A2-in piano wire U shape epoxy rudder-stabilizer junction protrude out rear /2 Cut stabilizer platform either / hard /32 lightweight balsa grain running spanwise should 11/4 wide 5/ long provide mount /6 x a stab-stop block pieces may quickly joined cyanoacrylate glue CyA shaped suit sanded epoxy stab platform fuselage time unless fuselage filmed Perform trial balance model fuselage tail wing engine tem porarily assembled Should plane nose-heavy move engine aft until CG center gravity balance point about /x forward wings TE Carefully saw off excess forward fuse lage necessary point indicated reproducing 5-degree downthrust anglewith no sidethrust Cut out /4 plywood firewall fit front fuselage epoxy place Block-sand ordinary sandpaper feather foam being careful hold block slight angle paper foam will sanded Should firewall little undersize places add epoxy make level foam Nudope third layer silkspan fuselage overlaps firewall run ning aft cabin starts Put fourth layer about /2-in wide just around firewall help secure Put extra coat Nudope entire fuselage once dry trimmed sanded lightly Add coloring desired simulate cabin other trim label name address phone number case model becomes lost done completely dry film fuselage except landing gear stab plat form located front firewall Epoxy stab platform place adding 3-in-long U-shaped piece /32-in piano wire stab bottom fuse lage snuffer tube dethermalizer DI fuse Bend landing gear /16-in piano wire cut out its /16 plywood mounting plate fit fuselage drill /6-in holes ap propriate sew gear plate large needle carpet thread desired have gear forward shown mount backwards Epoxy Continued page 152 RUBBER STRIP FAI RUBBER Made USA SIZES 1/4 3/16 1/82/32 1/16 1mm thick 042 BOXED 16 ounces rubber per box PRICE$1250 per box ppdin USA California Residents Add 6% Sales Tax KSB TIMERS FUEL SHUTOFF 3OSEC $1195 6 MIN DT $1195 SEND 5OFOR 1982/83 CATALOG Model I-POBOX3957TORFlANcEcAgo51o OFF tMtt SMASH SUCCESS TOLEDO! Thousands Already SOLD! 242 PAGES KITS/RADIOS ENGINES/ACCESSORIES TOOLS/SUPPLIES BOOKS/EQUIPMENT Major minor US Manufacturers represented entire product line Technical Descriptions & Prices Photos & Illustrations & Buy Hundreds Scratch Plans Model Aviation RCM & Others An Invaluable Source Book Products Beginner Expert See July 83 Model Aviation Product Review Guide Dealer Inquiries Welcome See Local Dealer Order Direct NAME ADDRESS Send check money order consumers Guide consumers Guide P0 Box 376 Great Falls VA 22066 Send S6B0llncludes osta alhandlina canadian Orders sendInc udes postjhandl Overseas orders sand $786 Includes post/hand MA AUgUSt 1983 151 First Guide Devoted Exclusively R/C Aircraft PRODUCTS FOR THE DISCERNING MODELER Complete Line Exhaust Systems * Tuned Pipes * Muffled Tuned Pioes * Headers uri Mufflers * Expansion Mufflers Helicopter Ball Mufflers * Specialized Exhaust Systems Unsurpassed Workmanship & PerformanCe Nick Zirolis F4U CORSAIR 2 Cu size Engines Fberglass Fuselage & Cowling s aca able roe des go GIANT RIC SCALE PLAN DESIGNS AT 6 TEXAN24 I101,Span$2700ppUSA FOEKOR DR-i27 163Teipa$2500ppUSA F8F REARCAT2w 186Span$2700ppUSA CURTISS p421/ 184Span$2700ppUSA P4U CORSAIR2/ 193Span$2700ppUSA Fiberglass Cow ogs & Cairopes available Send otamp deta 00 brocoores os oar Goer Scale Accessories lOr plans seer Postpaid wtbie tOe UbAl thread contact points mount gear bottom fuselage Add two /g-jn dowel hooks mounting wing twist I/gm drill sharp wire fuselage make holes dowel Nudope landing gear plate stab plat form wing hooks add color seal pores Put extra coat firewall too needed two three coats total fuselage again dry sanded lightly spread thin coat epoxy onto exposed non-filmed surfaces film used brush spray entire fuselage varnish clear Formula U finish coat Mark front stab platform slot Make I/jr wide /4 long accept front stab hook its roles front stabilizer key DI angle limit Adjust length slot necessary rotating tail will pop up about 45-deg angle dethermalize model Cut slot X-Acto similar knife Once through balsa epoxy foam can gouged out clear hook dull tool Mount engine small wood screws sheet-metal screws long enough go through l/4in firewall blindmounting nuts have used instead /o-in firewall adequate No 2 screws 5/o-in /2-in length will fine Should ever strip replace No 4 screw same length Solder wheels landing gear suggest following procedure Locate small #2 brass washers inside Punch small hole thin piece card board single-edge razor blade matchbook cover etc slide onto axle wheel will go should have tight fit Solder washer inside axle working inside cardboard help hold washer prevent solder resin flux running onto axle wheel Once cool enough handle remove card board put wheel remount card board another piece first has come too loose its prior use add another brass washer After soldering outside washer cut tear out cardboard has also provided small amount end play prevent binding Lubricate 3-in-I Oil wheel does turn freely plan always keep engine runs around 15 sec less Icc syringe will adequate fuel tank 2 3cc sy ringe will provide engine runs up 40 seconds morefor long flights En gine runs can also made short measur ing fuel larger tank stock Babe Bee tank another calibrated syringe just tank filling using larger tank cut off 2/2cc mark will hold 2cc stopper added wish able visually check fuel level before launching mount fuel syringe externallyeither piece balsa sanded concave partially embed ding fuselage side such exposed tank found displeasing eye drill hole down through top fuselage center line epoxy syringe hole Cut 2/r-3cc syr inge flush top bottom protrudes just enough get fuel line event tilt top tank forward about 15-20 degrees compensate nose-high attitude under power rubber syringe piston needs some work make breathing stopper Drill punch small hole through hole epoxy thinnest piece tubing can find tubing will allow tank take air fuel level drops Cut tubing long enough provide exter nal handle epoxying tubing stopper put washer just little larger syringe top can grasped pulling out stopper Keep epoxy outside using Cox reed-valve engine other plastic CL model will necessary drill hole tank order get fuel line bottom syringe carburetor just use Cox tank instead syringe controlling amount fuel two cubic centi meters per fill calibrated syringe Should done may wise dis assemble tank engine ensure internal fuel line arranged pick up fuel bottom tank side Pre-flight rigging Check wing en sure still has left-turn twist tended As long eye can discern some twist sighting along bottom probably OK warp some electric heater Mount tail fuselage check approximate 45-degree DT angle shouldnt bind would hold tail down neither should significant side-to-side sloppiness would allow rudder setting vary Some slop piness may removed adding epoxy either hook sides slot both front rear tail firmly tied down rubberbands epoxy two small wooden blocks /e X /ig X stab key rear stab platform has cured again check see stab free go DT position just before gluing two keys adjust tail line-of-sight through rudder goes through wingmount platform about /3 fuselage width point right side will provide small amount left rudder needed partially overcome strong natural tendency model go right under power left turn glide imparted shimming up left side stab plat form small amountup %2 depend ing upon model just make sure some stab tilt dont have look too hard see Check finished model see balance point CG about 1 ard 152 Model Aviation Power Soar New Heights IT-SO Electric Motor 01 Cu equivelent gas engine displacement Send self-addressed stamped envelope catalog ap plication notes Leisure ii DeerspringllrvinelCA 92714 L -COUPON R ORDERED FROM TOWER HOBBIES FIND OUT WHAT YOUVE BEEN MISSING Tower Hobbies best place shop RC modeling needs customers enjoy best TOWER IALordering fast service giant product selection personalized service low discount prices Toll Free Inventory back up regular free issues Tower Talk value-packed private label products available Tower plus much much Give us try today find out what youve missing receive sample what youve missing CALL TOWER HOBBIES TOLL FREE OR MAIL coupon today FREE copy Tower Talk 32 40 page publication gives up-to-date information new products well hundreds low low priced products shown ads really want save money cant afford Tower Talk Please note reg ular Tower customers already receive Tower Talks automatically Mail Tower Hobbies Dept AMA PO Box 778 Champaign IL 61820 ____________________Name _______________________ ITOAIER HOBBIESAddress_______________________________________ POOoIOCO,o90r no6182039 30 ITOLIFREE Con ,oIUSA V go 00605 Al0a & 0o. 000 63L000000cityStateZip -COUPON trailing edge wing Plus minus /4 probably close enough now outside tolerance add some weight whichever end model needed Modeling clay and/or lead good Just dont put clay fingers fuel will getting tail-heavy models engine may shimmed forward another piece plywood similar firewall Once cut size epoxy original firewall Use propeller 6-in diameter 3-in pitch called 6-3 model shops neighbors will put up noise test-run engine home few times developing procedures can control engine runs 5-10 sec after starting adjusting engine Should engine run erratically due vibration causing fuel foam add little hard plastic mesh dish scrubber bottom tank Flying Test-gliding model best done over some long grass available mistakes dont cost much cushioning effect offers Start running against slight breeze dont fly windy days allowing model lift out hand return exercise will tell what approximate gliding speed model whether may have strong tendency stall dive Should stall obvious shim up leading edge stabilizer side front ply wood hook model diving put shim under stab TE making sure does bind dethermalizing action ready make first real test glide Run same speed before launch model nose slightly below level about five degrees Any stall dive correct before noticeable left turn glide flat slightly left ready first power flight Fuel model 5- 10-sec engine run about 1 /2cc give time start adjust engine Put prop backwards flat front convex rear wont pull hard anticipate thermal activity best use DT fuse smolders like cigar will break tiny rubberband holding down tail once embers reach allowing tail pop up spoil glide Start engine Make first flight engine running slowly rich mixture Launch over grass wind horizontal attitude well will climb 10-20 degree angle wing almost level making wide right-hand turn engine quits may stall once twice should go flat glide left OK try second flight engine leaned out maximum rpm OK too third flight should have prop turned around forward normal way Should experience fol lowing problems make corrections indicatedthen try another flight increasing power I If model turns steeply left under power reduce left rudder offset check wing make sure left-turn twist excessive twist excessive remove part before attempt ing another flight Sometimes model will go slightly left lower power wide right high power 2 If turn too tight right bank-angle steep add leftrudder offset after making sure some left-turn wing twist generally change rudder settings slicing off part rear key block epoxy ing other Some would prefer cut tab rudder glue back desired offset angle 3 If model wants loop reduce CLEVELAND GIANT PLANS -- No 1 in oostor flying ogodelo 1/32 1/4 ooe Fo RI -inoinhiog ol. uk bnoooyinobee AnIin old Ii, -C C1 F/F RobbO, Sloso Sooo 1919 oboolf,o donigo oooIoblo Roi Coiloclo eo. yoo 00 oodol, oho folio, pinoolype polo dot holhoog ooinelf ooy long, bo neod $150 fon picoioI oololog Mol oil 0 foloinoIIy peneoled P01bhp hhlonlond pk Ill olon 60, foinoigo 75c {Add $100 fo oj ,oiii Nooe foe N doom, Edoo-dT Po0od---Aooljonn 00 fiodCLEVELAND MODEL & SUPPLY CO 103070 Delnoll Ao, Cinoolond 0110 44102- August 1983 153 TOWER HOES CESSNA 188 AGVGON MANY MORE NEW ITEMS INSIDE PAW DIESELS En g lands Finest 049 29 New low low prices Send $100 list Eric clutton 3816 DeSoto Ave Fort Myers Florida 22905 SHIPPING AND HANDLING sO Page CATALOGUE Up $800 add $150 $200 PP/lot Class $801 $2000 add $225 copy will sent $2001 $4500 add $300 free requested-$4501 $7000 add $350 order over $7000 add $400 HOBBY HORN CA Addresaees add 6% taxSahobby specialtiesna Send MO Visa/MC#Exp 11173 Moran Street [Al Check allow up 30 PO Boa 2212 daya check clearance Westminster Ca 02603 CODExact Charges 7101 193 0311 HdI Cash OnIyIAII UPSI 714 0911253 incidence raising front sta bilizer add weight rear model prevent diving glide Test-glide again confirm changes have ad versely affected glide may also necessary add downthrust 4 If model dives-in under power falls like arrow glide incidence must increased raising rear stabilizer same time add weight nose plane eliminate glide stall Should problem occur under power reducing amount downthrust may answer 5 power pattern OK glide circle too wide shim up left side stab some morethe same amount front back change inci dence setting Should ship appear spiraling-in during glide phase flight widen circle removing some shims Dont confuse however lack incidence described Prob lem 4 Although other patterns may work some modem models will safest stable flown right un der power left glide right left pattern Should experience some difficulty problem covered previous SEC article please feel free direct questions author address phone number given below effort will made help would like try SEC AlphaOne before getting equipped cut foam yourself will provide foam-only kits $18 plus $300 shipping way can prove yourself SEC way go before having make time investment required cut own foam Good luck Ron St Jean 3744 E Nye Lane Carson City NV 89701 tele phone 702 883-2400 Editor max obtain photocopies Ron St JeatIS Structureless Foam Com posites article April 1982 issue ]r $1 00check money order pleasefrom Model Aviation 1810 Samuel Morse Dr Resron VA 22090 CL Aerobatics/Paul Continued pate 65 cables outstanding still best handles Maybe E-Z Just did us favor going out business opened door adjustability performance using handle variables did lot testing several years ago because using six-in bellcranks big control horns now seems lot fliers par ticularly eastern part States have gone heavy-duty control systems East Coast fliers using larger bellcranks l/oindiameter steel rod flap elevator horns fiberglass pushrods cus tom handles etc have another suggestion experi menting handles E-Z Just grip axis straight up down Bob Hunt handle inclined about 10 degrees see diagram find inclinedgrip handle about 10-12 degrees much comfortable suited natural anatomy hand extended flying position comfortable Hunt handle designed like need plane corner little faster try short ening arms overhang will see sensitivity arms get shorter Id like especially thank Doug Stout Rich Siefert Big Jim Greenaway helped handle ideas suggestions technology Anyone wishes contact Windy can 9 Union Avenue Little Ferry New Jersey 07643 tel 201 440-0905 thanks him supplying information about handles certainly agree light handle flies better also like idea having adjustable think can keep handle 75 gm less will have workable solution thats about 2/2 oz appears little confusion availability plans engine work Tom Dixon can contact him Controline Sales Tom Dixon PO Box 27540 Contract Station #7 Atlanta GA 30327 has added following plans list El Diablo Red Reinhardt Baby Barnstormer Half-A Guillow kit Tom-Tom Warrior Veco kits Gob bleswantz Charlie Mackey Argus Steve Wooley own plans Oriental 40 similar 35-size scaled up 40-46 engine Tom recently said has filled several orders customworked Fox 35 Stunt engines see May 1983 column want good 35 summer contact him about various stages rework veteran engine infrwmation stunt PAMPA contaft Wynn Paul 1640 Maywick Dr Lex ington KY 40504 CL Navy Carrier/Perry Continued tjaoe 66 figuration produced option original Profile Carrier Special en gine longer crankshaft will produce better shaft seal provide room carb problem CS conversions short shaft left little room carburetor According literature port ing head configuration have opti mized running straight alcohol fuel may overcompressed high-nitro fuels major advantage new Fox its weight nine oz lightest throttled 36 available beats Supertigre ST 35 fraction ounce engine uses Mark X carb fits square intake boss new carb may fit old Fox CS well engine due out May should able get 154 Model Aviation Horn Span--750 564 Sq SENSOAR glider HOBBY HORN Easlusisel 808ev HORN Kit SENSOAR Glider kit high quality kit Machine sot sanded parts Select quabty balsa spruce Detailed plans ar1tten InstructIons Far THERMAL SLOPE 51 ELECTRIC POWER VALUE PRICED t 51600 OLD 1IlThR NflS bull Parttal 105 P & W Semi-Kilo Cambined full stripwssd plan Now md Wire Window etc Mat Nate may purchased just seoll kits plans-write call prices 1930 Buccaneer54SS1 1938 Cbpper MR t72-$30 1917 Datlaire Sptaer108581 1140 Ranger-fO- $27 1939 Mereury72-$50 1935 Miss Axerica04--SSO 1041 Playboy Jr-54929 1941 Playboy Sr80-948 1938 Power llouse84-943 1940 Sailplane-28- 974 1940 So tongSOSZf 1938 Trenton Terror-2T-432 1139 Zipper54948 1139 Korda Wakefield-44- 117 MIOtPAY MODEL CO SemI-kIlo Csm5lned a/strIp 1938 Plying Quaker84S49 1037 Quaker Plasb07130 1032 Long Cabin78S42 1037 Air Chiet6I-040 STRUCKS 1940 74 Span 135 Sq SEMI-KIT Plan IncI- $3300 new r HIDE Combo IFuII Kit $8300 SCALE PLANS nd ORAWINGS 5 50 HEINKEL HE 1000 62 60s $1000 AlTENTION ERS EPOXY GLASS COWLS FOR NOSEN PICA S/fl AIORGA9I BALSA USA PLATt CONCEPT FLEET HOSTETLER RCM TCRAFT SHEBER PIUS & /a SCALE SIJPER CUB FOEKER 0-7 BOEING PI2 P-2B F4B2 F4B4 SPARROW HAWK GEE BEE MOO Y MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELIAS STARDUSTER Va SCALE J3-BI BABY FLYBABY AIRAMPER PILOT JUWOPAAWW 135 SCAfE 1/4 SCALE DECA THALON PIPER PA-/B ft OTHERS WHEEL PANTS FOR CITABRIA STAROUSTERIL PIUS SKYBOLT LIBERTYSPORT CHRISTEN EAGLE P6E HAWI STEARMAN SnNSON SR-B MULLIGAN ft OTHERS BRAZED TREATEDW1REGEARS6CABANES LARGE SCALE PLANS AVAILABLE Send $100 latest list supply Modelers libergiass parts plansWrite call us T 8 D FIBERGLASS SPECIALTIES 30925 BIOCK GARDEN CfIY Ml 49135 PHONE 313 421-6358 BIG STANDS BIG AIRPLANES Now Can Get Stands Big 1/a 1/3 Scale Airplanes * Holds airplane eaay wing inatallation * Positions plane easy access radio * Disassembles easy transportation STANDARD SIZE12 width front fuse 8 width rear fuse sizes larger atandard aend width dimensiolia custom built stands $1995 plus $300 postage ft handling Send check money order aspee PRODUCTIONS % Harlan Payne R#1 Ina IL 62846
Edition: Model Aviation - 1983/08
Page Numbers: 60, 61, 62, 63, 64, 151, 152, 153, 154
SFC __ne cant really tell fuselage flying surfaces made foam has shaped hot-wire method Adequate strength provided system developed author covering silkspan double-covering mostly finishing thinned white glue called Nudope Build low-cost Sport 1/2A Free Flight foam techniques perfected author Its less expensive balsa just strong Normal full-size plans arent needed unique construction method FF model created especially beginners master FF Power designerE Ron St Jean HAVE DISCOVERED within myself two driving forces guide life desire assist others enjoying thrill successfully flying Free Flight Gas model first time 2 desire help myself others save buck Driving force No 2 probably stems fact maternal grandfather Scotch descent has now made much important forces flation own mother used refer Grandpa Jones still teenager Its Im cheap Im just inex pensive things would rather have said scientific terms thoughts represent new epitome cost-effec tiveness two forces combined author Alpha-One resulted Hopefully will permit people ages enter ranks Free Flighters simple inex pensive enjoyable way design such probability success high cost absolute rock-bottom perform ance moderate reed-valve 049 en60 Model Aviation Ron St Jean gets off another flight fun-flier uses eye-dropper fuel tank limiting engine run thereby avoiding expense complication timer Pictures Allen Smith gine friend suggested model would have appeal looked like real airplane made way complete tail-dragging landing gear orig inal ship fully-adjusted third flight almost lost flew unanticipated thermal 15 20 minutes second model flew right off board too New enjoyment being found slow-climbing FFs Perhaps flying fun because get watch climb longer look like real planes flight Once transitioned glide thermal just well anything else would guess much added enjoy ment also due reduced risks fact ship lost does lose much terms dollars SFC Structureless Foam Composites construction replacement time effort also minimums fond hope FF clubs will pick up Alpha-One use ginner projects Much learning could take place very little expenditure en gine could come old Cox plastic RTF CL model such PT-19 l5 syringe used instead $15 timer rest materials dont amount hill beans wheels can come same old CL model engine may made inexpensively /16 ply wood thicker desired short length /16-in ID brass tubing Should beginners club have much fun success ships decide have contest would suggest no maximum engine run flight score would merely calculated dividing total time engine run both seconds scheme will expensive timers continue un necessary shorter engine runs nor mal could used no penalty flying small fields wind anticipated Foam-cutting Unless have band saw would suggest patterns cut matt board art supply store instead plywood wont last long set can made much quickly gluing registration blocks onto top camber patterns sure make right-handed left-handed Should equipped cut foam sheets rud August 1983 61 Eye-dropper tank stopper curbs loss fuel allows easy filling Engine old Cox PT-19 Landing gear sewn 1/16 ply plate reversed forward plans show Fwnning snuffer tube angle fuselage rear allows fuse pulled out Steel aluminum yardstick fine-line marker such Flair handy laying Out foam blanks preparation cutting Wire-cutting blank length Guide workbench provides square cut Actually cutting tool can used rough-shaping foam Complete pattern set SFB Alpha-One Made matt board plywood first step Full-size patterns included wing stabilizer cambers rudder front stabilizer hook Its simple matter scale off dimensions fuselage N /090C900 S0000000000/ FIREWALL DETAiL\ 000090RE/ / LANDING GEAR DETAIL / 0000 090/ S0000000F0NICC 0090007c.. 009000/ /DIHEDRALDE L N 97ooooC0o7 -x 7DT DETAIL 7 77 / /~0 PHA-i 9C09U/ -7 DT DETAIL 2 /7 / oN/ 0 WHEEL DETAIL I/2A FREE-FLIGHT MODEL WING AHEA280sqrn WEIGHT 7-1/2lOoza designed Ron St Jean oziginOl drawing Leonard St Jean traced ink Mossy Gome der /16 balsa may substituted /x-in foam Please refer previous SFC article April 1982 MA pictures hints convert large foam blocks SEC kits general information article also needed guidance mixing Nudope sanding covering filming finished model cutting wing sections identical avoid mix-ups sembling put /02 /i twist panel give trailing-edge washin right washout left will provide completed wing leftturn aileron-type warp needs Construction Once have foam kit cut out sand parts smooth Use plasticbacked sandpaper #150 roughing about #280-320 finishing desired putting radius leading trailing edges described previous SFC article DC Products Perma-Grit0 tool useful sanding Join three wing sections 5-mm epoxy using little possible avoid its being squeezed out ensuring dihedral looks about same tip Use second shot epoxy fill voids dihedral joint necessary after first has cured Using general information provided previously cover wing GM silkspan intermediate weight bottom wing first allowing generous fold-over topat least /2 over lap leading edge /4 trailing edge same top cover62 Model Aviation / / ANbN00EC090R0NO Hot-wire-cutting fuselage sides progress Foam has little-used FF Pattern being pinned foam blank preparatory hot-wire-cutting fuselage sides Spruce lIe sq pieces used pattern convex inflection points help eliminate possible botching hot wire isnt square PIN HOLES-FOR MOUNTING TO FOAM 0 WING BOTTOM CAMBER-2 REQUIRED WING CHORD 6-5/8 0 zzIz 0 WING TOP CAMBER 2 REQUIRED / 1/8 x 3/16 REGISTRATION BLOCKS GLUE TO OPPOSITE SIDE OF 2ND PATTERN 000 STAB TOP CAMBER 2 REQUIRED STAB CHORD 5-1/2 STAB BOTTOM PATTERN-2 REQUIRED 0 N / F" ~1 NOTE ALL PATTERNS ARE MADE FROM 1/8 PLYWOOD OR ARTISTS MATT BOARD ONT STAB HOOK RUDDER OUTLINE TALLER RUDDER NEEDED IF POLYHEDRAL WING IS USED FULL SIZE PATTERNS ALPHA ONE WING PLAN I15 IF ADDITIONAL STABILITY IS DESIRED CUT WINS HERE OLOCK-SANS ANGLES OR ENDS AND REJOIN TOTAL DIHEORAL AT EACH TIP IS 4-I/D I15 5-I/O ing lap over onto bottom dry sand lightly regular #150 paper put second layer paper both sides center section using about same overlaps will provide four thicknesses silkspan both leading trailing edges center section ter panels will have two layers stabilizer covered similarly except second layer paper used leading edge reinforce front ply wood hook Make about 3 wide ex tending aft leading edge LE about 11/2 Again generous overlaps should provided result four layers paper right LE Single-cover rudder allowing minimum overlap because curved edges surfaces dry sand apply second coat Nudope sand IIS~ STABILIZER ALPHA-ONE DIMENSIONS 0 0 1 4 5 E again thoroughly dry Double-cover entire fuselage except bottom landing gear mount installed very front Use -in /4-in overlaps Cover fuselage before installing firewall Add third layer paper forward LE stabilizer will perhaps three inches extending aft point another inch will strengthen otherwise weak spot plastic film used Alpha-One would appropriate point film wing tail sur faces following general instructions provided previously Epoxy rudder stabilizer Cut IA6inwide /2-in-long slot frontcenter stabilizer epoxy front Continued page 151 64 Model Aviation __02A 1 DIHEDRAL NOT TO SCALE IV4h71BIT/B FUSELAGE TOPI 30 B SIB 0/16NOTE ONE BOTTOM CAMBER PATTERNS51/2 TO ESTABLISH CORRECT CURVES 4SFOR WING R STAB PLATFORMS FUSELAGE SID 2/B CAT OUT 9/16HHI Its easy trim off prolections left 1/e sq pieces Author uses razor blade Rough-sanding fine end flat Perma Grit tool Author finds handy Jig made squarely cutting dihedral wing panels also handy cutting downthrust The finished foam authors right hand what will become left hand Authors SFC fuselage simply angled correct degree process fully described April 1982 MA ideal lightweight strong applications airports servicing private aircraft may have can order aircraft supply houses Aircraft-grade dope much thicker available hobby shops will require thinning model use Lanzo airfoils recently received ac companying airfoils Chet Lanzo Chet has recieved requests airfoils several interested parties has generously offered use modeling public drawings coordi nates allow reproduced chord size taken directly original ribs 1-larley Hoffman Harley Chet fly models together Both Lanzo Bomber Lanzo 1937 Nats RC Champ seen occasional meet modelers familiar Lanzo Record Breaker favorite 0-I designs Ive seen eight-footer scaled up 12 feet flown RC-assist Harley has built four versions Lanzo Bomber original eight-ft span plus 74 80 106 wingspans thanks Chet New goodies Ive advised avid Old-Timer enthusiast Woody Bartelt long last producing die cast aluminum timer housings Arden 099 199 en gines Now chance get Arden back service Contact Woody Micro Model Engineering 5600 Portage Road Suite 112 Kalamazoo MI 49002 Ive also received word new pub lication England SAM 35 Yearbook Vol available Lord David Baker 22 Ellington Rd Muswell Hill London N 10 England Seven bucks will bring door postpaid Clarence Haught 3226 Hone vsackle Dr Cocur dAlene ID 83814 SFC Alpha-One/St Jean Continued paqe 64 stab hook place Bend 3-in-long piece A2-in piano wire U shape epoxy rudder-stabilizer junction protrude out rear /2 Cut stabilizer platform either / hard /32 lightweight balsa grain running spanwise should 11/4 wide 5/ long provide mount /6 x a stab-stop block pieces may quickly joined cyanoacrylate glue CyA shaped suit sanded epoxy stab platform fuselage time unless fuselage filmed Perform trial balance model fuselage tail wing engine tem porarily assembled Should plane nose-heavy move engine aft until CG center gravity balance point about /x forward wings TE Carefully saw off excess forward fuse lage necessary point indicated reproducing 5-degree downthrust anglewith no sidethrust Cut out /4 plywood firewall fit front fuselage epoxy place Block-sand ordinary sandpaper feather foam being careful hold block slight angle paper foam will sanded Should firewall little undersize places add epoxy make level foam Nudope third layer silkspan fuselage overlaps firewall run ning aft cabin starts Put fourth layer about /2-in wide just around firewall help secure Put extra coat Nudope entire fuselage once dry trimmed sanded lightly Add coloring desired simulate cabin other trim label name address phone number case model becomes lost done completely dry film fuselage except landing gear stab plat form located front firewall Epoxy stab platform place adding 3-in-long U-shaped piece /32-in piano wire stab bottom fuse lage snuffer tube dethermalizer DI fuse Bend landing gear /16-in piano wire cut out its /16 plywood mounting plate fit fuselage drill /6-in holes ap propriate sew gear plate large needle carpet thread desired have gear forward shown mount backwards Epoxy Continued page 152 RUBBER STRIP FAI RUBBER Made USA SIZES 1/4 3/16 1/82/32 1/16 1mm thick 042 BOXED 16 ounces rubber per box PRICE$1250 per box ppdin USA California Residents Add 6% Sales Tax KSB TIMERS FUEL SHUTOFF 3OSEC $1195 6 MIN DT $1195 SEND 5OFOR 1982/83 CATALOG Model I-POBOX3957TORFlANcEcAgo51o OFF tMtt SMASH SUCCESS TOLEDO! Thousands Already SOLD! 242 PAGES KITS/RADIOS ENGINES/ACCESSORIES TOOLS/SUPPLIES BOOKS/EQUIPMENT Major minor US Manufacturers represented entire product line Technical Descriptions & Prices Photos & Illustrations & Buy Hundreds Scratch Plans Model Aviation RCM & Others An Invaluable Source Book Products Beginner Expert See July 83 Model Aviation Product Review Guide Dealer Inquiries Welcome See Local Dealer Order Direct NAME ADDRESS Send check money order consumers Guide consumers Guide P0 Box 376 Great Falls VA 22066 Send S6B0llncludes osta alhandlina canadian Orders sendInc udes postjhandl Overseas orders sand $786 Includes post/hand MA AUgUSt 1983 151 First Guide Devoted Exclusively R/C Aircraft PRODUCTS FOR THE DISCERNING MODELER Complete Line Exhaust Systems * Tuned Pipes * Muffled Tuned Pioes * Headers uri Mufflers * Expansion Mufflers Helicopter Ball Mufflers * Specialized Exhaust Systems Unsurpassed Workmanship & PerformanCe Nick Zirolis F4U CORSAIR 2 Cu size Engines Fberglass Fuselage & Cowling s aca able roe des go GIANT RIC SCALE PLAN DESIGNS AT 6 TEXAN24 I101,Span$2700ppUSA FOEKOR DR-i27 163Teipa$2500ppUSA F8F REARCAT2w 186Span$2700ppUSA CURTISS p421/ 184Span$2700ppUSA P4U CORSAIR2/ 193Span$2700ppUSA Fiberglass Cow ogs & Cairopes available Send otamp deta 00 brocoores os oar Goer Scale Accessories lOr plans seer Postpaid wtbie tOe UbAl thread contact points mount gear bottom fuselage Add two /g-jn dowel hooks mounting wing twist I/gm drill sharp wire fuselage make holes dowel Nudope landing gear plate stab plat form wing hooks add color seal pores Put extra coat firewall too needed two three coats total fuselage again dry sanded lightly spread thin coat epoxy onto exposed non-filmed surfaces film used brush spray entire fuselage varnish clear Formula U finish coat Mark front stab platform slot Make I/jr wide /4 long accept front stab hook its roles front stabilizer key DI angle limit Adjust length slot necessary rotating tail will pop up about 45-deg angle dethermalize model Cut slot X-Acto similar knife Once through balsa epoxy foam can gouged out clear hook dull tool Mount engine small wood screws sheet-metal screws long enough go through l/4in firewall blindmounting nuts have used instead /o-in firewall adequate No 2 screws 5/o-in /2-in length will fine Should ever strip replace No 4 screw same length Solder wheels landing gear suggest following procedure Locate small #2 brass washers inside Punch small hole thin piece card board single-edge razor blade matchbook cover etc slide onto axle wheel will go should have tight fit Solder washer inside axle working inside cardboard help hold washer prevent solder resin flux running onto axle wheel Once cool enough handle remove card board put wheel remount card board another piece first has come too loose its prior use add another brass washer After soldering outside washer cut tear out cardboard has also provided small amount end play prevent binding Lubricate 3-in-I Oil wheel does turn freely plan always keep engine runs around 15 sec less Icc syringe will adequate fuel tank 2 3cc sy ringe will provide engine runs up 40 seconds morefor long flights En gine runs can also made short measur ing fuel larger tank stock Babe Bee tank another calibrated syringe just tank filling using larger tank cut off 2/2cc mark will hold 2cc stopper added wish able visually check fuel level before launching mount fuel syringe externallyeither piece balsa sanded concave partially embed ding fuselage side such exposed tank found displeasing eye drill hole down through top fuselage center line epoxy syringe hole Cut 2/r-3cc syr inge flush top bottom protrudes just enough get fuel line event tilt top tank forward about 15-20 degrees compensate nose-high attitude under power rubber syringe piston needs some work make breathing stopper Drill punch small hole through hole epoxy thinnest piece tubing can find tubing will allow tank take air fuel level drops Cut tubing long enough provide exter nal handle epoxying tubing stopper put washer just little larger syringe top can grasped pulling out stopper Keep epoxy outside using Cox reed-valve engine other plastic CL model will necessary drill hole tank order get fuel line bottom syringe carburetor just use Cox tank instead syringe controlling amount fuel two cubic centi meters per fill calibrated syringe Should done may wise dis assemble tank engine ensure internal fuel line arranged pick up fuel bottom tank side Pre-flight rigging Check wing en sure still has left-turn twist tended As long eye can discern some twist sighting along bottom probably OK warp some electric heater Mount tail fuselage check approximate 45-degree DT angle shouldnt bind would hold tail down neither should significant side-to-side sloppiness would allow rudder setting vary Some slop piness may removed adding epoxy either hook sides slot both front rear tail firmly tied down rubberbands epoxy two small wooden blocks /e X /ig X stab key rear stab platform has cured again check see stab free go DT position just before gluing two keys adjust tail line-of-sight through rudder goes through wingmount platform about /3 fuselage width point right side will provide small amount left rudder needed partially overcome strong natural tendency model go right under power left turn glide imparted shimming up left side stab plat form small amountup %2 depend ing upon model just make sure some stab tilt dont have look too hard see Check finished model see balance point CG about 1 ard 152 Model Aviation Power Soar New Heights IT-SO Electric Motor 01 Cu equivelent gas engine displacement Send self-addressed stamped envelope catalog ap plication notes Leisure ii DeerspringllrvinelCA 92714 L -COUPON R ORDERED FROM TOWER HOBBIES FIND OUT WHAT YOUVE BEEN MISSING Tower Hobbies best place shop RC modeling needs customers enjoy best TOWER IALordering fast service giant product selection personalized service low discount prices Toll Free Inventory back up regular free issues Tower Talk value-packed private label products available Tower plus much much Give us try today find out what youve missing receive sample what youve missing CALL TOWER HOBBIES TOLL FREE OR MAIL coupon today FREE copy Tower Talk 32 40 page publication gives up-to-date information new products well hundreds low low priced products shown ads really want save money cant afford Tower Talk Please note reg ular Tower customers already receive Tower Talks automatically Mail Tower Hobbies Dept AMA PO Box 778 Champaign IL 61820 ____________________Name _______________________ ITOAIER HOBBIESAddress_______________________________________ POOoIOCO,o90r no6182039 30 ITOLIFREE Con ,oIUSA V go 00605 Al0a & 0o. 000 63L000000cityStateZip -COUPON trailing edge wing Plus minus /4 probably close enough now outside tolerance add some weight whichever end model needed Modeling clay and/or lead good Just dont put clay fingers fuel will getting tail-heavy models engine may shimmed forward another piece plywood similar firewall Once cut size epoxy original firewall Use propeller 6-in diameter 3-in pitch called 6-3 model shops neighbors will put up noise test-run engine home few times developing procedures can control engine runs 5-10 sec after starting adjusting engine Should engine run erratically due vibration causing fuel foam add little hard plastic mesh dish scrubber bottom tank Flying Test-gliding model best done over some long grass available mistakes dont cost much cushioning effect offers Start running against slight breeze dont fly windy days allowing model lift out hand return exercise will tell what approximate gliding speed model whether may have strong tendency stall dive Should stall obvious shim up leading edge stabilizer side front ply wood hook model diving put shim under stab TE making sure does bind dethermalizing action ready make first real test glide Run same speed before launch model nose slightly below level about five degrees Any stall dive correct before noticeable left turn glide flat slightly left ready first power flight Fuel model 5- 10-sec engine run about 1 /2cc give time start adjust engine Put prop backwards flat front convex rear wont pull hard anticipate thermal activity best use DT fuse smolders like cigar will break tiny rubberband holding down tail once embers reach allowing tail pop up spoil glide Start engine Make first flight engine running slowly rich mixture Launch over grass wind horizontal attitude well will climb 10-20 degree angle wing almost level making wide right-hand turn engine quits may stall once twice should go flat glide left OK try second flight engine leaned out maximum rpm OK too third flight should have prop turned around forward normal way Should experience fol lowing problems make corrections indicatedthen try another flight increasing power I If model turns steeply left under power reduce left rudder offset check wing make sure left-turn twist excessive twist excessive remove part before attempt ing another flight Sometimes model will go slightly left lower power wide right high power 2 If turn too tight right bank-angle steep add leftrudder offset after making sure some left-turn wing twist generally change rudder settings slicing off part rear key block epoxy ing other Some would prefer cut tab rudder glue back desired offset angle 3 If model wants loop reduce CLEVELAND GIANT PLANS -- No 1 in oostor flying ogodelo 1/32 1/4 ooe Fo RI -inoinhiog ol. uk bnoooyinobee AnIin old Ii, -C C1 F/F RobbO, Sloso Sooo 1919 oboolf,o donigo oooIoblo Roi Coiloclo eo. yoo 00 oodol, oho folio, pinoolype polo dot holhoog ooinelf ooy long, bo neod $150 fon picoioI oololog Mol oil 0 foloinoIIy peneoled P01bhp hhlonlond pk Ill olon 60, foinoigo 75c {Add $100 fo oj ,oiii Nooe foe N doom, Edoo-dT Po0od---Aooljonn 00 fiodCLEVELAND MODEL & SUPPLY CO 103070 Delnoll Ao, Cinoolond 0110 44102- August 1983 153 TOWER HOES CESSNA 188 AGVGON MANY MORE NEW ITEMS INSIDE PAW DIESELS En g lands Finest 049 29 New low low prices Send $100 list Eric clutton 3816 DeSoto Ave Fort Myers Florida 22905 SHIPPING AND HANDLING sO Page CATALOGUE Up $800 add $150 $200 PP/lot Class $801 $2000 add $225 copy will sent $2001 $4500 add $300 free requested-$4501 $7000 add $350 order over $7000 add $400 HOBBY HORN CA Addresaees add 6% taxSahobby specialtiesna Send MO Visa/MC#Exp 11173 Moran Street [Al Check allow up 30 PO Boa 2212 daya check clearance Westminster Ca 02603 CODExact Charges 7101 193 0311 HdI Cash OnIyIAII UPSI 714 0911253 incidence raising front sta bilizer add weight rear model prevent diving glide Test-glide again confirm changes have ad versely affected glide may also necessary add downthrust 4 If model dives-in under power falls like arrow glide incidence must increased raising rear stabilizer same time add weight nose plane eliminate glide stall Should problem occur under power reducing amount downthrust may answer 5 power pattern OK glide circle too wide shim up left side stab some morethe same amount front back change inci dence setting Should ship appear spiraling-in during glide phase flight widen circle removing some shims Dont confuse however lack incidence described Prob lem 4 Although other patterns may work some modem models will safest stable flown right un der power left glide right left pattern Should experience some difficulty problem covered previous SEC article please feel free direct questions author address phone number given below effort will made help would like try SEC AlphaOne before getting equipped cut foam yourself will provide foam-only kits $18 plus $300 shipping way can prove yourself SEC way go before having make time investment required cut own foam Good luck Ron St Jean 3744 E Nye Lane Carson City NV 89701 tele phone 702 883-2400 Editor max obtain photocopies Ron St JeatIS Structureless Foam Com posites article April 1982 issue ]r $1 00check money order pleasefrom Model Aviation 1810 Samuel Morse Dr Resron VA 22090 CL Aerobatics/Paul Continued pate 65 cables outstanding still best handles Maybe E-Z Just did us favor going out business opened door adjustability performance using handle variables did lot testing several years ago because using six-in bellcranks big control horns now seems lot fliers par ticularly eastern part States have gone heavy-duty control systems East Coast fliers using larger bellcranks l/oindiameter steel rod flap elevator horns fiberglass pushrods cus tom handles etc have another suggestion experi menting handles E-Z Just grip axis straight up down Bob Hunt handle inclined about 10 degrees see diagram find inclinedgrip handle about 10-12 degrees much comfortable suited natural anatomy hand extended flying position comfortable Hunt handle designed like need plane corner little faster try short ening arms overhang will see sensitivity arms get shorter Id like especially thank Doug Stout Rich Siefert Big Jim Greenaway helped handle ideas suggestions technology Anyone wishes contact Windy can 9 Union Avenue Little Ferry New Jersey 07643 tel 201 440-0905 thanks him supplying information about handles certainly agree light handle flies better also like idea having adjustable think can keep handle 75 gm less will have workable solution thats about 2/2 oz appears little confusion availability plans engine work Tom Dixon can contact him Controline Sales Tom Dixon PO Box 27540 Contract Station #7 Atlanta GA 30327 has added following plans list El Diablo Red Reinhardt Baby Barnstormer Half-A Guillow kit Tom-Tom Warrior Veco kits Gob bleswantz Charlie Mackey Argus Steve Wooley own plans Oriental 40 similar 35-size scaled up 40-46 engine Tom recently said has filled several orders customworked Fox 35 Stunt engines see May 1983 column want good 35 summer contact him about various stages rework veteran engine infrwmation stunt PAMPA contaft Wynn Paul 1640 Maywick Dr Lex ington KY 40504 CL Navy Carrier/Perry Continued tjaoe 66 figuration produced option original Profile Carrier Special en gine longer crankshaft will produce better shaft seal provide room carb problem CS conversions short shaft left little room carburetor According literature port ing head configuration have opti mized running straight alcohol fuel may overcompressed high-nitro fuels major advantage new Fox its weight nine oz lightest throttled 36 available beats Supertigre ST 35 fraction ounce engine uses Mark X carb fits square intake boss new carb may fit old Fox CS well engine due out May should able get 154 Model Aviation Horn Span--750 564 Sq SENSOAR glider HOBBY HORN Easlusisel 808ev HORN Kit SENSOAR Glider kit high quality kit Machine sot sanded parts Select quabty balsa spruce Detailed plans ar1tten InstructIons Far THERMAL SLOPE 51 ELECTRIC POWER VALUE PRICED t 51600 OLD 1IlThR NflS bull Parttal 105 P & W Semi-Kilo Cambined full stripwssd plan Now md Wire Window etc Mat Nate may purchased just seoll kits plans-write call prices 1930 Buccaneer54SS1 1938 Cbpper MR t72-$30 1917 Datlaire Sptaer108581 1140 Ranger-fO- $27 1939 Mereury72-$50 1935 Miss Axerica04--SSO 1041 Playboy Jr-54929 1941 Playboy Sr80-948 1938 Power llouse84-943 1940 Sailplane-28- 974 1940 So tongSOSZf 1938 Trenton Terror-2T-432 1139 Zipper54948 1139 Korda Wakefield-44- 117 MIOtPAY MODEL CO SemI-kIlo Csm5lned a/strIp 1938 Plying Quaker84S49 1037 Quaker Plasb07130 1032 Long Cabin78S42 1037 Air Chiet6I-040 STRUCKS 1940 74 Span 135 Sq SEMI-KIT Plan IncI- $3300 new r HIDE Combo IFuII Kit $8300 SCALE PLANS nd ORAWINGS 5 50 HEINKEL HE 1000 62 60s $1000 AlTENTION ERS EPOXY GLASS COWLS FOR NOSEN PICA S/fl AIORGA9I BALSA USA PLATt CONCEPT FLEET HOSTETLER RCM TCRAFT SHEBER PIUS & /a SCALE SIJPER CUB FOEKER 0-7 BOEING PI2 P-2B F4B2 F4B4 SPARROW HAWK GEE BEE MOO Y MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELIAS STARDUSTER Va SCALE J3-BI BABY FLYBABY AIRAMPER PILOT JUWOPAAWW 135 SCAfE 1/4 SCALE DECA THALON PIPER PA-/B ft OTHERS WHEEL PANTS FOR CITABRIA STAROUSTERIL PIUS SKYBOLT LIBERTYSPORT CHRISTEN EAGLE P6E HAWI STEARMAN SnNSON SR-B MULLIGAN ft OTHERS BRAZED TREATEDW1REGEARS6CABANES LARGE SCALE PLANS AVAILABLE Send $100 latest list supply Modelers libergiass parts plansWrite call us T 8 D FIBERGLASS SPECIALTIES 30925 BIOCK GARDEN CfIY Ml 49135 PHONE 313 421-6358 BIG STANDS BIG AIRPLANES Now Can Get Stands Big 1/a 1/3 Scale Airplanes * Holds airplane eaay wing inatallation * Positions plane easy access radio * Disassembles easy transportation STANDARD SIZE12 width front fuse 8 width rear fuse sizes larger atandard aend width dimensiolia custom built stands $1995 plus $300 postage ft handling Send check money order aspee PRODUCTIONS % Harlan Payne R#1 Ina IL 62846
Edition: Model Aviation - 1983/08
Page Numbers: 60, 61, 62, 63, 64, 151, 152, 153, 154
SFC __ne cant really tell fuselage flying surfaces made foam has shaped hot-wire method Adequate strength provided system developed author covering silkspan double-covering mostly finishing thinned white glue called Nudope Build low-cost Sport 1/2A Free Flight foam techniques perfected author Its less expensive balsa just strong Normal full-size plans arent needed unique construction method FF model created especially beginners master FF Power designerE Ron St Jean HAVE DISCOVERED within myself two driving forces guide life desire assist others enjoying thrill successfully flying Free Flight Gas model first time 2 desire help myself others save buck Driving force No 2 probably stems fact maternal grandfather Scotch descent has now made much important forces flation own mother used refer Grandpa Jones still teenager Its Im cheap Im just inex pensive things would rather have said scientific terms thoughts represent new epitome cost-effec tiveness two forces combined author Alpha-One resulted Hopefully will permit people ages enter ranks Free Flighters simple inex pensive enjoyable way design such probability success high cost absolute rock-bottom perform ance moderate reed-valve 049 en60 Model Aviation Ron St Jean gets off another flight fun-flier uses eye-dropper fuel tank limiting engine run thereby avoiding expense complication timer Pictures Allen Smith gine friend suggested model would have appeal looked like real airplane made way complete tail-dragging landing gear orig inal ship fully-adjusted third flight almost lost flew unanticipated thermal 15 20 minutes second model flew right off board too New enjoyment being found slow-climbing FFs Perhaps flying fun because get watch climb longer look like real planes flight Once transitioned glide thermal just well anything else would guess much added enjoy ment also due reduced risks fact ship lost does lose much terms dollars SFC Structureless Foam Composites construction replacement time effort also minimums fond hope FF clubs will pick up Alpha-One use ginner projects Much learning could take place very little expenditure en gine could come old Cox plastic RTF CL model such PT-19 l5 syringe used instead $15 timer rest materials dont amount hill beans wheels can come same old CL model engine may made inexpensively /16 ply wood thicker desired short length /16-in ID brass tubing Should beginners club have much fun success ships decide have contest would suggest no maximum engine run flight score would merely calculated dividing total time engine run both seconds scheme will expensive timers continue un necessary shorter engine runs nor mal could used no penalty flying small fields wind anticipated Foam-cutting Unless have band saw would suggest patterns cut matt board art supply store instead plywood wont last long set can made much quickly gluing registration blocks onto top camber patterns sure make right-handed left-handed Should equipped cut foam sheets rud August 1983 61 Eye-dropper tank stopper curbs loss fuel allows easy filling Engine old Cox PT-19 Landing gear sewn 1/16 ply plate reversed forward plans show Fwnning snuffer tube angle fuselage rear allows fuse pulled out Steel aluminum yardstick fine-line marker such Flair handy laying Out foam blanks preparation cutting Wire-cutting blank length Guide workbench provides square cut Actually cutting tool can used rough-shaping foam Complete pattern set SFB Alpha-One Made matt board plywood first step Full-size patterns included wing stabilizer cambers rudder front stabilizer hook Its simple matter scale off dimensions fuselage N /090C900 S0000000000/ FIREWALL DETAiL\ 000090RE/ / LANDING GEAR DETAIL / 0000 090/ S0000000F0NICC 0090007c.. 009000/ /DIHEDRALDE L N 97ooooC0o7 -x 7DT DETAIL 7 77 / /~0 PHA-i 9C09U/ -7 DT DETAIL 2 /7 / oN/ 0 WHEEL DETAIL I/2A FREE-FLIGHT MODEL WING AHEA280sqrn WEIGHT 7-1/2lOoza designed Ron St Jean oziginOl drawing Leonard St Jean traced ink Mossy Gome der /16 balsa may substituted /x-in foam Please refer previous SFC article April 1982 MA pictures hints convert large foam blocks SEC kits general information article also needed guidance mixing Nudope sanding covering filming finished model cutting wing sections identical avoid mix-ups sembling put /02 /i twist panel give trailing-edge washin right washout left will provide completed wing leftturn aileron-type warp needs Construction Once have foam kit cut out sand parts smooth Use plasticbacked sandpaper #150 roughing about #280-320 finishing desired putting radius leading trailing edges described previous SFC article DC Products Perma-Grit0 tool useful sanding Join three wing sections 5-mm epoxy using little possible avoid its being squeezed out ensuring dihedral looks about same tip Use second shot epoxy fill voids dihedral joint necessary after first has cured Using general information provided previously cover wing GM silkspan intermediate weight bottom wing first allowing generous fold-over topat least /2 over lap leading edge /4 trailing edge same top cover62 Model Aviation / / ANbN00EC090R0NO Hot-wire-cutting fuselage sides progress Foam has little-used FF Pattern being pinned foam blank preparatory hot-wire-cutting fuselage sides Spruce lIe sq pieces used pattern convex inflection points help eliminate possible botching hot wire isnt square PIN HOLES-FOR MOUNTING TO FOAM 0 WING BOTTOM CAMBER-2 REQUIRED WING CHORD 6-5/8 0 zzIz 0 WING TOP CAMBER 2 REQUIRED / 1/8 x 3/16 REGISTRATION BLOCKS GLUE TO OPPOSITE SIDE OF 2ND PATTERN 000 STAB TOP CAMBER 2 REQUIRED STAB CHORD 5-1/2 STAB BOTTOM PATTERN-2 REQUIRED 0 N / F" ~1 NOTE ALL PATTERNS ARE MADE FROM 1/8 PLYWOOD OR ARTISTS MATT BOARD ONT STAB HOOK RUDDER OUTLINE TALLER RUDDER NEEDED IF POLYHEDRAL WING IS USED FULL SIZE PATTERNS ALPHA ONE WING PLAN I15 IF ADDITIONAL STABILITY IS DESIRED CUT WINS HERE OLOCK-SANS ANGLES OR ENDS AND REJOIN TOTAL DIHEORAL AT EACH TIP IS 4-I/D I15 5-I/O ing lap over onto bottom dry sand lightly regular #150 paper put second layer paper both sides center section using about same overlaps will provide four thicknesses silkspan both leading trailing edges center section ter panels will have two layers stabilizer covered similarly except second layer paper used leading edge reinforce front ply wood hook Make about 3 wide ex tending aft leading edge LE about 11/2 Again generous overlaps should provided result four layers paper right LE Single-cover rudder allowing minimum overlap because curved edges surfaces dry sand apply second coat Nudope sand IIS~ STABILIZER ALPHA-ONE DIMENSIONS 0 0 1 4 5 E again thoroughly dry Double-cover entire fuselage except bottom landing gear mount installed very front Use -in /4-in overlaps Cover fuselage before installing firewall Add third layer paper forward LE stabilizer will perhaps three inches extending aft point another inch will strengthen otherwise weak spot plastic film used Alpha-One would appropriate point film wing tail sur faces following general instructions provided previously Epoxy rudder stabilizer Cut IA6inwide /2-in-long slot frontcenter stabilizer epoxy front Continued page 151 64 Model Aviation __02A 1 DIHEDRAL NOT TO SCALE IV4h71BIT/B FUSELAGE TOPI 30 B SIB 0/16NOTE ONE BOTTOM CAMBER PATTERNS51/2 TO ESTABLISH CORRECT CURVES 4SFOR WING R STAB PLATFORMS FUSELAGE SID 2/B CAT OUT 9/16HHI Its easy trim off prolections left 1/e sq pieces Author uses razor blade Rough-sanding fine end flat Perma Grit tool Author finds handy Jig made squarely cutting dihedral wing panels also handy cutting downthrust The finished foam authors right hand what will become left hand Authors SFC fuselage simply angled correct degree process fully described April 1982 MA ideal lightweight strong applications airports servicing private aircraft may have can order aircraft supply houses Aircraft-grade dope much thicker available hobby shops will require thinning model use Lanzo airfoils recently received ac companying airfoils Chet Lanzo Chet has recieved requests airfoils several interested parties has generously offered use modeling public drawings coordi nates allow reproduced chord size taken directly original ribs 1-larley Hoffman Harley Chet fly models together Both Lanzo Bomber Lanzo 1937 Nats RC Champ seen occasional meet modelers familiar Lanzo Record Breaker favorite 0-I designs Ive seen eight-footer scaled up 12 feet flown RC-assist Harley has built four versions Lanzo Bomber original eight-ft span plus 74 80 106 wingspans thanks Chet New goodies Ive advised avid Old-Timer enthusiast Woody Bartelt long last producing die cast aluminum timer housings Arden 099 199 en gines Now chance get Arden back service Contact Woody Micro Model Engineering 5600 Portage Road Suite 112 Kalamazoo MI 49002 Ive also received word new pub lication England SAM 35 Yearbook Vol available Lord David Baker 22 Ellington Rd Muswell Hill London N 10 England Seven bucks will bring door postpaid Clarence Haught 3226 Hone vsackle Dr Cocur dAlene ID 83814 SFC Alpha-One/St Jean Continued paqe 64 stab hook place Bend 3-in-long piece A2-in piano wire U shape epoxy rudder-stabilizer junction protrude out rear /2 Cut stabilizer platform either / hard /32 lightweight balsa grain running spanwise should 11/4 wide 5/ long provide mount /6 x a stab-stop block pieces may quickly joined cyanoacrylate glue CyA shaped suit sanded epoxy stab platform fuselage time unless fuselage filmed Perform trial balance model fuselage tail wing engine tem porarily assembled Should plane nose-heavy move engine aft until CG center gravity balance point about /x forward wings TE Carefully saw off excess forward fuse lage necessary point indicated reproducing 5-degree downthrust anglewith no sidethrust Cut out /4 plywood firewall fit front fuselage epoxy place Block-sand ordinary sandpaper feather foam being careful hold block slight angle paper foam will sanded Should firewall little undersize places add epoxy make level foam Nudope third layer silkspan fuselage overlaps firewall run ning aft cabin starts Put fourth layer about /2-in wide just around firewall help secure Put extra coat Nudope entire fuselage once dry trimmed sanded lightly Add coloring desired simulate cabin other trim label name address phone number case model becomes lost done completely dry film fuselage except landing gear stab plat form located front firewall Epoxy stab platform place adding 3-in-long U-shaped piece /32-in piano wire stab bottom fuse lage snuffer tube dethermalizer DI fuse Bend landing gear /16-in piano wire cut out its /16 plywood mounting plate fit fuselage drill /6-in holes ap propriate sew gear plate large needle carpet thread desired have gear forward shown mount backwards Epoxy Continued page 152 RUBBER STRIP FAI RUBBER Made USA SIZES 1/4 3/16 1/82/32 1/16 1mm thick 042 BOXED 16 ounces rubber per box PRICE$1250 per box ppdin USA California Residents Add 6% Sales Tax KSB TIMERS FUEL SHUTOFF 3OSEC $1195 6 MIN DT $1195 SEND 5OFOR 1982/83 CATALOG Model I-POBOX3957TORFlANcEcAgo51o OFF tMtt SMASH SUCCESS TOLEDO! Thousands Already SOLD! 242 PAGES KITS/RADIOS ENGINES/ACCESSORIES TOOLS/SUPPLIES BOOKS/EQUIPMENT Major minor US Manufacturers represented entire product line Technical Descriptions & Prices Photos & Illustrations & Buy Hundreds Scratch Plans Model Aviation RCM & Others An Invaluable Source Book Products Beginner Expert See July 83 Model Aviation Product Review Guide Dealer Inquiries Welcome See Local Dealer Order Direct NAME ADDRESS Send check money order consumers Guide consumers Guide P0 Box 376 Great Falls VA 22066 Send S6B0llncludes osta alhandlina canadian Orders sendInc udes postjhandl Overseas orders sand $786 Includes post/hand MA AUgUSt 1983 151 First Guide Devoted Exclusively R/C Aircraft PRODUCTS FOR THE DISCERNING MODELER Complete Line Exhaust Systems * Tuned Pipes * Muffled Tuned Pioes * Headers uri Mufflers * Expansion Mufflers Helicopter Ball Mufflers * Specialized Exhaust Systems Unsurpassed Workmanship & PerformanCe Nick Zirolis F4U CORSAIR 2 Cu size Engines Fberglass Fuselage & Cowling s aca able roe des go GIANT RIC SCALE PLAN DESIGNS AT 6 TEXAN24 I101,Span$2700ppUSA FOEKOR DR-i27 163Teipa$2500ppUSA F8F REARCAT2w 186Span$2700ppUSA CURTISS p421/ 184Span$2700ppUSA P4U CORSAIR2/ 193Span$2700ppUSA Fiberglass Cow ogs & Cairopes available Send otamp deta 00 brocoores os oar Goer Scale Accessories lOr plans seer Postpaid wtbie tOe UbAl thread contact points mount gear bottom fuselage Add two /g-jn dowel hooks mounting wing twist I/gm drill sharp wire fuselage make holes dowel Nudope landing gear plate stab plat form wing hooks add color seal pores Put extra coat firewall too needed two three coats total fuselage again dry sanded lightly spread thin coat epoxy onto exposed non-filmed surfaces film used brush spray entire fuselage varnish clear Formula U finish coat Mark front stab platform slot Make I/jr wide /4 long accept front stab hook its roles front stabilizer key DI angle limit Adjust length slot necessary rotating tail will pop up about 45-deg angle dethermalize model Cut slot X-Acto similar knife Once through balsa epoxy foam can gouged out clear hook dull tool Mount engine small wood screws sheet-metal screws long enough go through l/4in firewall blindmounting nuts have used instead /o-in firewall adequate No 2 screws 5/o-in /2-in length will fine Should ever strip replace No 4 screw same length Solder wheels landing gear suggest following procedure Locate small #2 brass washers inside Punch small hole thin piece card board single-edge razor blade matchbook cover etc slide onto axle wheel will go should have tight fit Solder washer inside axle working inside cardboard help hold washer prevent solder resin flux running onto axle wheel Once cool enough handle remove card board put wheel remount card board another piece first has come too loose its prior use add another brass washer After soldering outside washer cut tear out cardboard has also provided small amount end play prevent binding Lubricate 3-in-I Oil wheel does turn freely plan always keep engine runs around 15 sec less Icc syringe will adequate fuel tank 2 3cc sy ringe will provide engine runs up 40 seconds morefor long flights En gine runs can also made short measur ing fuel larger tank stock Babe Bee tank another calibrated syringe just tank filling using larger tank cut off 2/2cc mark will hold 2cc stopper added wish able visually check fuel level before launching mount fuel syringe externallyeither piece balsa sanded concave partially embed ding fuselage side such exposed tank found displeasing eye drill hole down through top fuselage center line epoxy syringe hole Cut 2/r-3cc syr inge flush top bottom protrudes just enough get fuel line event tilt top tank forward about 15-20 degrees compensate nose-high attitude under power rubber syringe piston needs some work make breathing stopper Drill punch small hole through hole epoxy thinnest piece tubing can find tubing will allow tank take air fuel level drops Cut tubing long enough provide exter nal handle epoxying tubing stopper put washer just little larger syringe top can grasped pulling out stopper Keep epoxy outside using Cox reed-valve engine other plastic CL model will necessary drill hole tank order get fuel line bottom syringe carburetor just use Cox tank instead syringe controlling amount fuel two cubic centi meters per fill calibrated syringe Should done may wise dis assemble tank engine ensure internal fuel line arranged pick up fuel bottom tank side Pre-flight rigging Check wing en sure still has left-turn twist tended As long eye can discern some twist sighting along bottom probably OK warp some electric heater Mount tail fuselage check approximate 45-degree DT angle shouldnt bind would hold tail down neither should significant side-to-side sloppiness would allow rudder setting vary Some slop piness may removed adding epoxy either hook sides slot both front rear tail firmly tied down rubberbands epoxy two small wooden blocks /e X /ig X stab key rear stab platform has cured again check see stab free go DT position just before gluing two keys adjust tail line-of-sight through rudder goes through wingmount platform about /3 fuselage width point right side will provide small amount left rudder needed partially overcome strong natural tendency model go right under power left turn glide imparted shimming up left side stab plat form small amountup %2 depend ing upon model just make sure some stab tilt dont have look too hard see Check finished model see balance point CG about 1 ard 152 Model Aviation Power Soar New Heights IT-SO Electric Motor 01 Cu equivelent gas engine displacement Send self-addressed stamped envelope catalog ap plication notes Leisure ii DeerspringllrvinelCA 92714 L -COUPON R ORDERED FROM TOWER HOBBIES FIND OUT WHAT YOUVE BEEN MISSING Tower Hobbies best place shop RC modeling needs customers enjoy best TOWER IALordering fast service giant product selection personalized service low discount prices Toll Free Inventory back up regular free issues Tower Talk value-packed private label products available Tower plus much much Give us try today find out what youve missing receive sample what youve missing CALL TOWER HOBBIES TOLL FREE OR MAIL coupon today FREE copy Tower Talk 32 40 page publication gives up-to-date information new products well hundreds low low priced products shown ads really want save money cant afford Tower Talk Please note reg ular Tower customers already receive Tower Talks automatically Mail Tower Hobbies Dept AMA PO Box 778 Champaign IL 61820 ____________________Name _______________________ ITOAIER HOBBIESAddress_______________________________________ POOoIOCO,o90r no6182039 30 ITOLIFREE Con ,oIUSA V go 00605 Al0a & 0o. 000 63L000000cityStateZip -COUPON trailing edge wing Plus minus /4 probably close enough now outside tolerance add some weight whichever end model needed Modeling clay and/or lead good Just dont put clay fingers fuel will getting tail-heavy models engine may shimmed forward another piece plywood similar firewall Once cut size epoxy original firewall Use propeller 6-in diameter 3-in pitch called 6-3 model shops neighbors will put up noise test-run engine home few times developing procedures can control engine runs 5-10 sec after starting adjusting engine Should engine run erratically due vibration causing fuel foam add little hard plastic mesh dish scrubber bottom tank Flying Test-gliding model best done over some long grass available mistakes dont cost much cushioning effect offers Start running against slight breeze dont fly windy days allowing model lift out hand return exercise will tell what approximate gliding speed model whether may have strong tendency stall dive Should stall obvious shim up leading edge stabilizer side front ply wood hook model diving put shim under stab TE making sure does bind dethermalizing action ready make first real test glide Run same speed before launch model nose slightly below level about five degrees Any stall dive correct before noticeable left turn glide flat slightly left ready first power flight Fuel model 5- 10-sec engine run about 1 /2cc give time start adjust engine Put prop backwards flat front convex rear wont pull hard anticipate thermal activity best use DT fuse smolders like cigar will break tiny rubberband holding down tail once embers reach allowing tail pop up spoil glide Start engine Make first flight engine running slowly rich mixture Launch over grass wind horizontal attitude well will climb 10-20 degree angle wing almost level making wide right-hand turn engine quits may stall once twice should go flat glide left OK try second flight engine leaned out maximum rpm OK too third flight should have prop turned around forward normal way Should experience fol lowing problems make corrections indicatedthen try another flight increasing power I If model turns steeply left under power reduce left rudder offset check wing make sure left-turn twist excessive twist excessive remove part before attempt ing another flight Sometimes model will go slightly left lower power wide right high power 2 If turn too tight right bank-angle steep add leftrudder offset after making sure some left-turn wing twist generally change rudder settings slicing off part rear key block epoxy ing other Some would prefer cut tab rudder glue back desired offset angle 3 If model wants loop reduce CLEVELAND GIANT PLANS -- No 1 in oostor flying ogodelo 1/32 1/4 ooe Fo RI -inoinhiog ol. uk bnoooyinobee AnIin old Ii, -C C1 F/F RobbO, Sloso Sooo 1919 oboolf,o donigo oooIoblo Roi Coiloclo eo. yoo 00 oodol, oho folio, pinoolype polo dot holhoog ooinelf ooy long, bo neod $150 fon picoioI oololog Mol oil 0 foloinoIIy peneoled P01bhp hhlonlond pk Ill olon 60, foinoigo 75c {Add $100 fo oj ,oiii Nooe foe N doom, Edoo-dT Po0od---Aooljonn 00 fiodCLEVELAND MODEL & SUPPLY CO 103070 Delnoll Ao, Cinoolond 0110 44102- August 1983 153 TOWER HOES CESSNA 188 AGVGON MANY MORE NEW ITEMS INSIDE PAW DIESELS En g lands Finest 049 29 New low low prices Send $100 list Eric clutton 3816 DeSoto Ave Fort Myers Florida 22905 SHIPPING AND HANDLING sO Page CATALOGUE Up $800 add $150 $200 PP/lot Class $801 $2000 add $225 copy will sent $2001 $4500 add $300 free requested-$4501 $7000 add $350 order over $7000 add $400 HOBBY HORN CA Addresaees add 6% taxSahobby specialtiesna Send MO Visa/MC#Exp 11173 Moran Street [Al Check allow up 30 PO Boa 2212 daya check clearance Westminster Ca 02603 CODExact Charges 7101 193 0311 HdI Cash OnIyIAII UPSI 714 0911253 incidence raising front sta bilizer add weight rear model prevent diving glide Test-glide again confirm changes have ad versely affected glide may also necessary add downthrust 4 If model dives-in under power falls like arrow glide incidence must increased raising rear stabilizer same time add weight nose plane eliminate glide stall Should problem occur under power reducing amount downthrust may answer 5 power pattern OK glide circle too wide shim up left side stab some morethe same amount front back change inci dence setting Should ship appear spiraling-in during glide phase flight widen circle removing some shims Dont confuse however lack incidence described Prob lem 4 Although other patterns may work some modem models will safest stable flown right un der power left glide right left pattern Should experience some difficulty problem covered previous SEC article please feel free direct questions author address phone number given below effort will made help would like try SEC AlphaOne before getting equipped cut foam yourself will provide foam-only kits $18 plus $300 shipping way can prove yourself SEC way go before having make time investment required cut own foam Good luck Ron St Jean 3744 E Nye Lane Carson City NV 89701 tele phone 702 883-2400 Editor max obtain photocopies Ron St JeatIS Structureless Foam Com posites article April 1982 issue ]r $1 00check money order pleasefrom Model Aviation 1810 Samuel Morse Dr Resron VA 22090 CL Aerobatics/Paul Continued pate 65 cables outstanding still best handles Maybe E-Z Just did us favor going out business opened door adjustability performance using handle variables did lot testing several years ago because using six-in bellcranks big control horns now seems lot fliers par ticularly eastern part States have gone heavy-duty control systems East Coast fliers using larger bellcranks l/oindiameter steel rod flap elevator horns fiberglass pushrods cus tom handles etc have another suggestion experi menting handles E-Z Just grip axis straight up down Bob Hunt handle inclined about 10 degrees see diagram find inclinedgrip handle about 10-12 degrees much comfortable suited natural anatomy hand extended flying position comfortable Hunt handle designed like need plane corner little faster try short ening arms overhang will see sensitivity arms get shorter Id like especially thank Doug Stout Rich Siefert Big Jim Greenaway helped handle ideas suggestions technology Anyone wishes contact Windy can 9 Union Avenue Little Ferry New Jersey 07643 tel 201 440-0905 thanks him supplying information about handles certainly agree light handle flies better also like idea having adjustable think can keep handle 75 gm less will have workable solution thats about 2/2 oz appears little confusion availability plans engine work Tom Dixon can contact him Controline Sales Tom Dixon PO Box 27540 Contract Station #7 Atlanta GA 30327 has added following plans list El Diablo Red Reinhardt Baby Barnstormer Half-A Guillow kit Tom-Tom Warrior Veco kits Gob bleswantz Charlie Mackey Argus Steve Wooley own plans Oriental 40 similar 35-size scaled up 40-46 engine Tom recently said has filled several orders customworked Fox 35 Stunt engines see May 1983 column want good 35 summer contact him about various stages rework veteran engine infrwmation stunt PAMPA contaft Wynn Paul 1640 Maywick Dr Lex ington KY 40504 CL Navy Carrier/Perry Continued tjaoe 66 figuration produced option original Profile Carrier Special en gine longer crankshaft will produce better shaft seal provide room carb problem CS conversions short shaft left little room carburetor According literature port ing head configuration have opti mized running straight alcohol fuel may overcompressed high-nitro fuels major advantage new Fox its weight nine oz lightest throttled 36 available beats Supertigre ST 35 fraction ounce engine uses Mark X carb fits square intake boss new carb may fit old Fox CS well engine due out May should able get 154 Model Aviation Horn Span--750 564 Sq SENSOAR glider HOBBY HORN Easlusisel 808ev HORN Kit SENSOAR Glider kit high quality kit Machine sot sanded parts Select quabty balsa spruce Detailed plans ar1tten InstructIons Far THERMAL SLOPE 51 ELECTRIC POWER VALUE PRICED t 51600 OLD 1IlThR NflS bull Parttal 105 P & W Semi-Kilo Cambined full stripwssd plan Now md Wire Window etc Mat Nate may purchased just seoll kits plans-write call prices 1930 Buccaneer54SS1 1938 Cbpper MR t72-$30 1917 Datlaire Sptaer108581 1140 Ranger-fO- $27 1939 Mereury72-$50 1935 Miss Axerica04--SSO 1041 Playboy Jr-54929 1941 Playboy Sr80-948 1938 Power llouse84-943 1940 Sailplane-28- 974 1940 So tongSOSZf 1938 Trenton Terror-2T-432 1139 Zipper54948 1139 Korda Wakefield-44- 117 MIOtPAY MODEL CO SemI-kIlo Csm5lned a/strIp 1938 Plying Quaker84S49 1037 Quaker Plasb07130 1032 Long Cabin78S42 1037 Air Chiet6I-040 STRUCKS 1940 74 Span 135 Sq SEMI-KIT Plan IncI- $3300 new r HIDE Combo IFuII Kit $8300 SCALE PLANS nd ORAWINGS 5 50 HEINKEL HE 1000 62 60s $1000 AlTENTION ERS EPOXY GLASS COWLS FOR NOSEN PICA S/fl AIORGA9I BALSA USA PLATt CONCEPT FLEET HOSTETLER RCM TCRAFT SHEBER PIUS & /a SCALE SIJPER CUB FOEKER 0-7 BOEING PI2 P-2B F4B2 F4B4 SPARROW HAWK GEE BEE MOO Y MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELIAS STARDUSTER Va SCALE J3-BI BABY FLYBABY AIRAMPER PILOT JUWOPAAWW 135 SCAfE 1/4 SCALE DECA THALON PIPER PA-/B ft OTHERS WHEEL PANTS FOR CITABRIA STAROUSTERIL PIUS SKYBOLT LIBERTYSPORT CHRISTEN EAGLE P6E HAWI STEARMAN SnNSON SR-B MULLIGAN ft OTHERS BRAZED TREATEDW1REGEARS6CABANES LARGE SCALE PLANS AVAILABLE Send $100 latest list supply Modelers libergiass parts plansWrite call us T 8 D FIBERGLASS SPECIALTIES 30925 BIOCK GARDEN CfIY Ml 49135 PHONE 313 421-6358 BIG STANDS BIG AIRPLANES Now Can Get Stands Big 1/a 1/3 Scale Airplanes * Holds airplane eaay wing inatallation * Positions plane easy access radio * Disassembles easy transportation STANDARD SIZE12 width front fuse 8 width rear fuse sizes larger atandard aend width dimensiolia custom built stands $1995 plus $300 postage ft handling Send check money order aspee PRODUCTIONS % Harlan Payne R#1 Ina IL 62846
Edition: Model Aviation - 1983/08
Page Numbers: 60, 61, 62, 63, 64, 151, 152, 153, 154
SFC __ne cant really tell fuselage flying surfaces made foam has shaped hot-wire method Adequate strength provided system developed author covering silkspan double-covering mostly finishing thinned white glue called Nudope Build low-cost Sport 1/2A Free Flight foam techniques perfected author Its less expensive balsa just strong Normal full-size plans arent needed unique construction method FF model created especially beginners master FF Power designerE Ron St Jean HAVE DISCOVERED within myself two driving forces guide life desire assist others enjoying thrill successfully flying Free Flight Gas model first time 2 desire help myself others save buck Driving force No 2 probably stems fact maternal grandfather Scotch descent has now made much important forces flation own mother used refer Grandpa Jones still teenager Its Im cheap Im just inex pensive things would rather have said scientific terms thoughts represent new epitome cost-effec tiveness two forces combined author Alpha-One resulted Hopefully will permit people ages enter ranks Free Flighters simple inex pensive enjoyable way design such probability success high cost absolute rock-bottom perform ance moderate reed-valve 049 en60 Model Aviation Ron St Jean gets off another flight fun-flier uses eye-dropper fuel tank limiting engine run thereby avoiding expense complication timer Pictures Allen Smith gine friend suggested model would have appeal looked like real airplane made way complete tail-dragging landing gear orig inal ship fully-adjusted third flight almost lost flew unanticipated thermal 15 20 minutes second model flew right off board too New enjoyment being found slow-climbing FFs Perhaps flying fun because get watch climb longer look like real planes flight Once transitioned glide thermal just well anything else would guess much added enjoy ment also due reduced risks fact ship lost does lose much terms dollars SFC Structureless Foam Composites construction replacement time effort also minimums fond hope FF clubs will pick up Alpha-One use ginner projects Much learning could take place very little expenditure en gine could come old Cox plastic RTF CL model such PT-19 l5 syringe used instead $15 timer rest materials dont amount hill beans wheels can come same old CL model engine may made inexpensively /16 ply wood thicker desired short length /16-in ID brass tubing Should beginners club have much fun success ships decide have contest would suggest no maximum engine run flight score would merely calculated dividing total time engine run both seconds scheme will expensive timers continue un necessary shorter engine runs nor mal could used no penalty flying small fields wind anticipated Foam-cutting Unless have band saw would suggest patterns cut matt board art supply store instead plywood wont last long set can made much quickly gluing registration blocks onto top camber patterns sure make right-handed left-handed Should equipped cut foam sheets rud August 1983 61 Eye-dropper tank stopper curbs loss fuel allows easy filling Engine old Cox PT-19 Landing gear sewn 1/16 ply plate reversed forward plans show Fwnning snuffer tube angle fuselage rear allows fuse pulled out Steel aluminum yardstick fine-line marker such Flair handy laying Out foam blanks preparation cutting Wire-cutting blank length Guide workbench provides square cut Actually cutting tool can used rough-shaping foam Complete pattern set SFB Alpha-One Made matt board plywood first step Full-size patterns included wing stabilizer cambers rudder front stabilizer hook Its simple matter scale off dimensions fuselage N /090C900 S0000000000/ FIREWALL DETAiL\ 000090RE/ / LANDING GEAR DETAIL / 0000 090/ S0000000F0NICC 0090007c.. 009000/ /DIHEDRALDE L N 97ooooC0o7 -x 7DT DETAIL 7 77 / /~0 PHA-i 9C09U/ -7 DT DETAIL 2 /7 / oN/ 0 WHEEL DETAIL I/2A FREE-FLIGHT MODEL WING AHEA280sqrn WEIGHT 7-1/2lOoza designed Ron St Jean oziginOl drawing Leonard St Jean traced ink Mossy Gome der /16 balsa may substituted /x-in foam Please refer previous SFC article April 1982 MA pictures hints convert large foam blocks SEC kits general information article also needed guidance mixing Nudope sanding covering filming finished model cutting wing sections identical avoid mix-ups sembling put /02 /i twist panel give trailing-edge washin right washout left will provide completed wing leftturn aileron-type warp needs Construction Once have foam kit cut out sand parts smooth Use plasticbacked sandpaper #150 roughing about #280-320 finishing desired putting radius leading trailing edges described previous SFC article DC Products Perma-Grit0 tool useful sanding Join three wing sections 5-mm epoxy using little possible avoid its being squeezed out ensuring dihedral looks about same tip Use second shot epoxy fill voids dihedral joint necessary after first has cured Using general information provided previously cover wing GM silkspan intermediate weight bottom wing first allowing generous fold-over topat least /2 over lap leading edge /4 trailing edge same top cover62 Model Aviation / / ANbN00EC090R0NO Hot-wire-cutting fuselage sides progress Foam has little-used FF Pattern being pinned foam blank preparatory hot-wire-cutting fuselage sides Spruce lIe sq pieces used pattern convex inflection points help eliminate possible botching hot wire isnt square PIN HOLES-FOR MOUNTING TO FOAM 0 WING BOTTOM CAMBER-2 REQUIRED WING CHORD 6-5/8 0 zzIz 0 WING TOP CAMBER 2 REQUIRED / 1/8 x 3/16 REGISTRATION BLOCKS GLUE TO OPPOSITE SIDE OF 2ND PATTERN 000 STAB TOP CAMBER 2 REQUIRED STAB CHORD 5-1/2 STAB BOTTOM PATTERN-2 REQUIRED 0 N / F" ~1 NOTE ALL PATTERNS ARE MADE FROM 1/8 PLYWOOD OR ARTISTS MATT BOARD ONT STAB HOOK RUDDER OUTLINE TALLER RUDDER NEEDED IF POLYHEDRAL WING IS USED FULL SIZE PATTERNS ALPHA ONE WING PLAN I15 IF ADDITIONAL STABILITY IS DESIRED CUT WINS HERE OLOCK-SANS ANGLES OR ENDS AND REJOIN TOTAL DIHEORAL AT EACH TIP IS 4-I/D I15 5-I/O ing lap over onto bottom dry sand lightly regular #150 paper put second layer paper both sides center section using about same overlaps will provide four thicknesses silkspan both leading trailing edges center section ter panels will have two layers stabilizer covered similarly except second layer paper used leading edge reinforce front ply wood hook Make about 3 wide ex tending aft leading edge LE about 11/2 Again generous overlaps should provided result four layers paper right LE Single-cover rudder allowing minimum overlap because curved edges surfaces dry sand apply second coat Nudope sand IIS~ STABILIZER ALPHA-ONE DIMENSIONS 0 0 1 4 5 E again thoroughly dry Double-cover entire fuselage except bottom landing gear mount installed very front Use -in /4-in overlaps Cover fuselage before installing firewall Add third layer paper forward LE stabilizer will perhaps three inches extending aft point another inch will strengthen otherwise weak spot plastic film used Alpha-One would appropriate point film wing tail sur faces following general instructions provided previously Epoxy rudder stabilizer Cut IA6inwide /2-in-long slot frontcenter stabilizer epoxy front Continued page 151 64 Model Aviation __02A 1 DIHEDRAL NOT TO SCALE IV4h71BIT/B FUSELAGE TOPI 30 B SIB 0/16NOTE ONE BOTTOM CAMBER PATTERNS51/2 TO ESTABLISH CORRECT CURVES 4SFOR WING R STAB PLATFORMS FUSELAGE SID 2/B CAT OUT 9/16HHI Its easy trim off prolections left 1/e sq pieces Author uses razor blade Rough-sanding fine end flat Perma Grit tool Author finds handy Jig made squarely cutting dihedral wing panels also handy cutting downthrust The finished foam authors right hand what will become left hand Authors SFC fuselage simply angled correct degree process fully described April 1982 MA ideal lightweight strong applications airports servicing private aircraft may have can order aircraft supply houses Aircraft-grade dope much thicker available hobby shops will require thinning model use Lanzo airfoils recently received ac companying airfoils Chet Lanzo Chet has recieved requests airfoils several interested parties has generously offered use modeling public drawings coordi nates allow reproduced chord size taken directly original ribs 1-larley Hoffman Harley Chet fly models together Both Lanzo Bomber Lanzo 1937 Nats RC Champ seen occasional meet modelers familiar Lanzo Record Breaker favorite 0-I designs Ive seen eight-footer scaled up 12 feet flown RC-assist Harley has built four versions Lanzo Bomber original eight-ft span plus 74 80 106 wingspans thanks Chet New goodies Ive advised avid Old-Timer enthusiast Woody Bartelt long last producing die cast aluminum timer housings Arden 099 199 en gines Now chance get Arden back service Contact Woody Micro Model Engineering 5600 Portage Road Suite 112 Kalamazoo MI 49002 Ive also received word new pub lication England SAM 35 Yearbook Vol available Lord David Baker 22 Ellington Rd Muswell Hill London N 10 England Seven bucks will bring door postpaid Clarence Haught 3226 Hone vsackle Dr Cocur dAlene ID 83814 SFC Alpha-One/St Jean Continued paqe 64 stab hook place Bend 3-in-long piece A2-in piano wire U shape epoxy rudder-stabilizer junction protrude out rear /2 Cut stabilizer platform either / hard /32 lightweight balsa grain running spanwise should 11/4 wide 5/ long provide mount /6 x a stab-stop block pieces may quickly joined cyanoacrylate glue CyA shaped suit sanded epoxy stab platform fuselage time unless fuselage filmed Perform trial balance model fuselage tail wing engine tem porarily assembled Should plane nose-heavy move engine aft until CG center gravity balance point about /x forward wings TE Carefully saw off excess forward fuse lage necessary point indicated reproducing 5-degree downthrust anglewith no sidethrust Cut out /4 plywood firewall fit front fuselage epoxy place Block-sand ordinary sandpaper feather foam being careful hold block slight angle paper foam will sanded Should firewall little undersize places add epoxy make level foam Nudope third layer silkspan fuselage overlaps firewall run ning aft cabin starts Put fourth layer about /2-in wide just around firewall help secure Put extra coat Nudope entire fuselage once dry trimmed sanded lightly Add coloring desired simulate cabin other trim label name address phone number case model becomes lost done completely dry film fuselage except landing gear stab plat form located front firewall Epoxy stab platform place adding 3-in-long U-shaped piece /32-in piano wire stab bottom fuse lage snuffer tube dethermalizer DI fuse Bend landing gear /16-in piano wire cut out its /16 plywood mounting plate fit fuselage drill /6-in holes ap propriate sew gear plate large needle carpet thread desired have gear forward shown mount backwards Epoxy Continued page 152 RUBBER STRIP FAI RUBBER Made USA SIZES 1/4 3/16 1/82/32 1/16 1mm thick 042 BOXED 16 ounces rubber per box PRICE$1250 per box ppdin USA California Residents Add 6% Sales Tax KSB TIMERS FUEL SHUTOFF 3OSEC $1195 6 MIN DT $1195 SEND 5OFOR 1982/83 CATALOG Model I-POBOX3957TORFlANcEcAgo51o OFF tMtt SMASH SUCCESS TOLEDO! Thousands Already SOLD! 242 PAGES KITS/RADIOS ENGINES/ACCESSORIES TOOLS/SUPPLIES BOOKS/EQUIPMENT Major minor US Manufacturers represented entire product line Technical Descriptions & Prices Photos & Illustrations & Buy Hundreds Scratch Plans Model Aviation RCM & Others An Invaluable Source Book Products Beginner Expert See July 83 Model Aviation Product Review Guide Dealer Inquiries Welcome See Local Dealer Order Direct NAME ADDRESS Send check money order consumers Guide consumers Guide P0 Box 376 Great Falls VA 22066 Send S6B0llncludes osta alhandlina canadian Orders sendInc udes postjhandl Overseas orders sand $786 Includes post/hand MA AUgUSt 1983 151 First Guide Devoted Exclusively R/C Aircraft PRODUCTS FOR THE DISCERNING MODELER Complete Line Exhaust Systems * Tuned Pipes * Muffled Tuned Pioes * Headers uri Mufflers * Expansion Mufflers Helicopter Ball Mufflers * Specialized Exhaust Systems Unsurpassed Workmanship & PerformanCe Nick Zirolis F4U CORSAIR 2 Cu size Engines Fberglass Fuselage & Cowling s aca able roe des go GIANT RIC SCALE PLAN DESIGNS AT 6 TEXAN24 I101,Span$2700ppUSA FOEKOR DR-i27 163Teipa$2500ppUSA F8F REARCAT2w 186Span$2700ppUSA CURTISS p421/ 184Span$2700ppUSA P4U CORSAIR2/ 193Span$2700ppUSA Fiberglass Cow ogs & Cairopes available Send otamp deta 00 brocoores os oar Goer Scale Accessories lOr plans seer Postpaid wtbie tOe UbAl thread contact points mount gear bottom fuselage Add two /g-jn dowel hooks mounting wing twist I/gm drill sharp wire fuselage make holes dowel Nudope landing gear plate stab plat form wing hooks add color seal pores Put extra coat firewall too needed two three coats total fuselage again dry sanded lightly spread thin coat epoxy onto exposed non-filmed surfaces film used brush spray entire fuselage varnish clear Formula U finish coat Mark front stab platform slot Make I/jr wide /4 long accept front stab hook its roles front stabilizer key DI angle limit Adjust length slot necessary rotating tail will pop up about 45-deg angle dethermalize model Cut slot X-Acto similar knife Once through balsa epoxy foam can gouged out clear hook dull tool Mount engine small wood screws sheet-metal screws long enough go through l/4in firewall blindmounting nuts have used instead /o-in firewall adequate No 2 screws 5/o-in /2-in length will fine Should ever strip replace No 4 screw same length Solder wheels landing gear suggest following procedure Locate small #2 brass washers inside Punch small hole thin piece card board single-edge razor blade matchbook cover etc slide onto axle wheel will go should have tight fit Solder washer inside axle working inside cardboard help hold washer prevent solder resin flux running onto axle wheel Once cool enough handle remove card board put wheel remount card board another piece first has come too loose its prior use add another brass washer After soldering outside washer cut tear out cardboard has also provided small amount end play prevent binding Lubricate 3-in-I Oil wheel does turn freely plan always keep engine runs around 15 sec less Icc syringe will adequate fuel tank 2 3cc sy ringe will provide engine runs up 40 seconds morefor long flights En gine runs can also made short measur ing fuel larger tank stock Babe Bee tank another calibrated syringe just tank filling using larger tank cut off 2/2cc mark will hold 2cc stopper added wish able visually check fuel level before launching mount fuel syringe externallyeither piece balsa sanded concave partially embed ding fuselage side such exposed tank found displeasing eye drill hole down through top fuselage center line epoxy syringe hole Cut 2/r-3cc syr inge flush top bottom protrudes just enough get fuel line event tilt top tank forward about 15-20 degrees compensate nose-high attitude under power rubber syringe piston needs some work make breathing stopper Drill punch small hole through hole epoxy thinnest piece tubing can find tubing will allow tank take air fuel level drops Cut tubing long enough provide exter nal handle epoxying tubing stopper put washer just little larger syringe top can grasped pulling out stopper Keep epoxy outside using Cox reed-valve engine other plastic CL model will necessary drill hole tank order get fuel line bottom syringe carburetor just use Cox tank instead syringe controlling amount fuel two cubic centi meters per fill calibrated syringe Should done may wise dis assemble tank engine ensure internal fuel line arranged pick up fuel bottom tank side Pre-flight rigging Check wing en sure still has left-turn twist tended As long eye can discern some twist sighting along bottom probably OK warp some electric heater Mount tail fuselage check approximate 45-degree DT angle shouldnt bind would hold tail down neither should significant side-to-side sloppiness would allow rudder setting vary Some slop piness may removed adding epoxy either hook sides slot both front rear tail firmly tied down rubberbands epoxy two small wooden blocks /e X /ig X stab key rear stab platform has cured again check see stab free go DT position just before gluing two keys adjust tail line-of-sight through rudder goes through wingmount platform about /3 fuselage width point right side will provide small amount left rudder needed partially overcome strong natural tendency model go right under power left turn glide imparted shimming up left side stab plat form small amountup %2 depend ing upon model just make sure some stab tilt dont have look too hard see Check finished model see balance point CG about 1 ard 152 Model Aviation Power Soar New Heights IT-SO Electric Motor 01 Cu equivelent gas engine displacement Send self-addressed stamped envelope catalog ap plication notes Leisure ii DeerspringllrvinelCA 92714 L -COUPON R ORDERED FROM TOWER HOBBIES FIND OUT WHAT YOUVE BEEN MISSING Tower Hobbies best place shop RC modeling needs customers enjoy best TOWER IALordering fast service giant product selection personalized service low discount prices Toll Free Inventory back up regular free issues Tower Talk value-packed private label products available Tower plus much much Give us try today find out what youve missing receive sample what youve missing CALL TOWER HOBBIES TOLL FREE OR MAIL coupon today FREE copy Tower Talk 32 40 page publication gives up-to-date information new products well hundreds low low priced products shown ads really want save money cant afford Tower Talk Please note reg ular Tower customers already receive Tower Talks automatically Mail Tower Hobbies Dept AMA PO Box 778 Champaign IL 61820 ____________________Name _______________________ ITOAIER HOBBIESAddress_______________________________________ POOoIOCO,o90r no6182039 30 ITOLIFREE Con ,oIUSA V go 00605 Al0a & 0o. 000 63L000000cityStateZip -COUPON trailing edge wing Plus minus /4 probably close enough now outside tolerance add some weight whichever end model needed Modeling clay and/or lead good Just dont put clay fingers fuel will getting tail-heavy models engine may shimmed forward another piece plywood similar firewall Once cut size epoxy original firewall Use propeller 6-in diameter 3-in pitch called 6-3 model shops neighbors will put up noise test-run engine home few times developing procedures can control engine runs 5-10 sec after starting adjusting engine Should engine run erratically due vibration causing fuel foam add little hard plastic mesh dish scrubber bottom tank Flying Test-gliding model best done over some long grass available mistakes dont cost much cushioning effect offers Start running against slight breeze dont fly windy days allowing model lift out hand return exercise will tell what approximate gliding speed model whether may have strong tendency stall dive Should stall obvious shim up leading edge stabilizer side front ply wood hook model diving put shim under stab TE making sure does bind dethermalizing action ready make first real test glide Run same speed before launch model nose slightly below level about five degrees Any stall dive correct before noticeable left turn glide flat slightly left ready first power flight Fuel model 5- 10-sec engine run about 1 /2cc give time start adjust engine Put prop backwards flat front convex rear wont pull hard anticipate thermal activity best use DT fuse smolders like cigar will break tiny rubberband holding down tail once embers reach allowing tail pop up spoil glide Start engine Make first flight engine running slowly rich mixture Launch over grass wind horizontal attitude well will climb 10-20 degree angle wing almost level making wide right-hand turn engine quits may stall once twice should go flat glide left OK try second flight engine leaned out maximum rpm OK too third flight should have prop turned around forward normal way Should experience fol lowing problems make corrections indicatedthen try another flight increasing power I If model turns steeply left under power reduce left rudder offset check wing make sure left-turn twist excessive twist excessive remove part before attempt ing another flight Sometimes model will go slightly left lower power wide right high power 2 If turn too tight right bank-angle steep add leftrudder offset after making sure some left-turn wing twist generally change rudder settings slicing off part rear key block epoxy ing other Some would prefer cut tab rudder glue back desired offset angle 3 If model wants loop reduce CLEVELAND GIANT PLANS -- No 1 in oostor flying ogodelo 1/32 1/4 ooe Fo RI -inoinhiog ol. uk bnoooyinobee AnIin old Ii, -C C1 F/F RobbO, Sloso Sooo 1919 oboolf,o donigo oooIoblo Roi Coiloclo eo. yoo 00 oodol, oho folio, pinoolype polo dot holhoog ooinelf ooy long, bo neod $150 fon picoioI oololog Mol oil 0 foloinoIIy peneoled P01bhp hhlonlond pk Ill olon 60, foinoigo 75c {Add $100 fo oj ,oiii Nooe foe N doom, Edoo-dT Po0od---Aooljonn 00 fiodCLEVELAND MODEL & SUPPLY CO 103070 Delnoll Ao, Cinoolond 0110 44102- August 1983 153 TOWER HOES CESSNA 188 AGVGON MANY MORE NEW ITEMS INSIDE PAW DIESELS En g lands Finest 049 29 New low low prices Send $100 list Eric clutton 3816 DeSoto Ave Fort Myers Florida 22905 SHIPPING AND HANDLING sO Page CATALOGUE Up $800 add $150 $200 PP/lot Class $801 $2000 add $225 copy will sent $2001 $4500 add $300 free requested-$4501 $7000 add $350 order over $7000 add $400 HOBBY HORN CA Addresaees add 6% taxSahobby specialtiesna Send MO Visa/MC#Exp 11173 Moran Street [Al Check allow up 30 PO Boa 2212 daya check clearance Westminster Ca 02603 CODExact Charges 7101 193 0311 HdI Cash OnIyIAII UPSI 714 0911253 incidence raising front sta bilizer add weight rear model prevent diving glide Test-glide again confirm changes have ad versely affected glide may also necessary add downthrust 4 If model dives-in under power falls like arrow glide incidence must increased raising rear stabilizer same time add weight nose plane eliminate glide stall Should problem occur under power reducing amount downthrust may answer 5 power pattern OK glide circle too wide shim up left side stab some morethe same amount front back change inci dence setting Should ship appear spiraling-in during glide phase flight widen circle removing some shims Dont confuse however lack incidence described Prob lem 4 Although other patterns may work some modem models will safest stable flown right un der power left glide right left pattern Should experience some difficulty problem covered previous SEC article please feel free direct questions author address phone number given below effort will made help would like try SEC AlphaOne before getting equipped cut foam yourself will provide foam-only kits $18 plus $300 shipping way can prove yourself SEC way go before having make time investment required cut own foam Good luck Ron St Jean 3744 E Nye Lane Carson City NV 89701 tele phone 702 883-2400 Editor max obtain photocopies Ron St JeatIS Structureless Foam Com posites article April 1982 issue ]r $1 00check money order pleasefrom Model Aviation 1810 Samuel Morse Dr Resron VA 22090 CL Aerobatics/Paul Continued pate 65 cables outstanding still best handles Maybe E-Z Just did us favor going out business opened door adjustability performance using handle variables did lot testing several years ago because using six-in bellcranks big control horns now seems lot fliers par ticularly eastern part States have gone heavy-duty control systems East Coast fliers using larger bellcranks l/oindiameter steel rod flap elevator horns fiberglass pushrods cus tom handles etc have another suggestion experi menting handles E-Z Just grip axis straight up down Bob Hunt handle inclined about 10 degrees see diagram find inclinedgrip handle about 10-12 degrees much comfortable suited natural anatomy hand extended flying position comfortable Hunt handle designed like need plane corner little faster try short ening arms overhang will see sensitivity arms get shorter Id like especially thank Doug Stout Rich Siefert Big Jim Greenaway helped handle ideas suggestions technology Anyone wishes contact Windy can 9 Union Avenue Little Ferry New Jersey 07643 tel 201 440-0905 thanks him supplying information about handles certainly agree light handle flies better also like idea having adjustable think can keep handle 75 gm less will have workable solution thats about 2/2 oz appears little confusion availability plans engine work Tom Dixon can contact him Controline Sales Tom Dixon PO Box 27540 Contract Station #7 Atlanta GA 30327 has added following plans list El Diablo Red Reinhardt Baby Barnstormer Half-A Guillow kit Tom-Tom Warrior Veco kits Gob bleswantz Charlie Mackey Argus Steve Wooley own plans Oriental 40 similar 35-size scaled up 40-46 engine Tom recently said has filled several orders customworked Fox 35 Stunt engines see May 1983 column want good 35 summer contact him about various stages rework veteran engine infrwmation stunt PAMPA contaft Wynn Paul 1640 Maywick Dr Lex ington KY 40504 CL Navy Carrier/Perry Continued tjaoe 66 figuration produced option original Profile Carrier Special en gine longer crankshaft will produce better shaft seal provide room carb problem CS conversions short shaft left little room carburetor According literature port ing head configuration have opti mized running straight alcohol fuel may overcompressed high-nitro fuels major advantage new Fox its weight nine oz lightest throttled 36 available beats Supertigre ST 35 fraction ounce engine uses Mark X carb fits square intake boss new carb may fit old Fox CS well engine due out May should able get 154 Model Aviation Horn Span--750 564 Sq SENSOAR glider HOBBY HORN Easlusisel 808ev HORN Kit SENSOAR Glider kit high quality kit Machine sot sanded parts Select quabty balsa spruce Detailed plans ar1tten InstructIons Far THERMAL SLOPE 51 ELECTRIC POWER VALUE PRICED t 51600 OLD 1IlThR NflS bull Parttal 105 P & W Semi-Kilo Cambined full stripwssd plan Now md Wire Window etc Mat Nate may purchased just seoll kits plans-write call prices 1930 Buccaneer54SS1 1938 Cbpper MR t72-$30 1917 Datlaire Sptaer108581 1140 Ranger-fO- $27 1939 Mereury72-$50 1935 Miss Axerica04--SSO 1041 Playboy Jr-54929 1941 Playboy Sr80-948 1938 Power llouse84-943 1940 Sailplane-28- 974 1940 So tongSOSZf 1938 Trenton Terror-2T-432 1139 Zipper54948 1139 Korda Wakefield-44- 117 MIOtPAY MODEL CO SemI-kIlo Csm5lned a/strIp 1938 Plying Quaker84S49 1037 Quaker Plasb07130 1032 Long Cabin78S42 1037 Air Chiet6I-040 STRUCKS 1940 74 Span 135 Sq SEMI-KIT Plan IncI- $3300 new r HIDE Combo IFuII Kit $8300 SCALE PLANS nd ORAWINGS 5 50 HEINKEL HE 1000 62 60s $1000 AlTENTION ERS EPOXY GLASS COWLS FOR NOSEN PICA S/fl AIORGA9I BALSA USA PLATt CONCEPT FLEET HOSTETLER RCM TCRAFT SHEBER PIUS & /a SCALE SIJPER CUB FOEKER 0-7 BOEING PI2 P-2B F4B2 F4B4 SPARROW HAWK GEE BEE MOO Y MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELIAS STARDUSTER Va SCALE J3-BI BABY FLYBABY AIRAMPER PILOT JUWOPAAWW 135 SCAfE 1/4 SCALE DECA THALON PIPER PA-/B ft OTHERS WHEEL PANTS FOR CITABRIA STAROUSTERIL PIUS SKYBOLT LIBERTYSPORT CHRISTEN EAGLE P6E HAWI STEARMAN SnNSON SR-B MULLIGAN ft OTHERS BRAZED TREATEDW1REGEARS6CABANES LARGE SCALE PLANS AVAILABLE Send $100 latest list supply Modelers libergiass parts plansWrite call us T 8 D FIBERGLASS SPECIALTIES 30925 BIOCK GARDEN CfIY Ml 49135 PHONE 313 421-6358 BIG STANDS BIG AIRPLANES Now Can Get Stands Big 1/a 1/3 Scale Airplanes * Holds airplane eaay wing inatallation * Positions plane easy access radio * Disassembles easy transportation STANDARD SIZE12 width front fuse 8 width rear fuse sizes larger atandard aend width dimensiolia custom built stands $1995 plus $300 postage ft handling Send check money order aspee PRODUCTIONS % Harlan Payne R#1 Ina IL 62846
Edition: Model Aviation - 1983/08
Page Numbers: 60, 61, 62, 63, 64, 151, 152, 153, 154
SFC __ne cant really tell fuselage flying surfaces made foam has shaped hot-wire method Adequate strength provided system developed author covering silkspan double-covering mostly finishing thinned white glue called Nudope Build low-cost Sport 1/2A Free Flight foam techniques perfected author Its less expensive balsa just strong Normal full-size plans arent needed unique construction method FF model created especially beginners master FF Power designerE Ron St Jean HAVE DISCOVERED within myself two driving forces guide life desire assist others enjoying thrill successfully flying Free Flight Gas model first time 2 desire help myself others save buck Driving force No 2 probably stems fact maternal grandfather Scotch descent has now made much important forces flation own mother used refer Grandpa Jones still teenager Its Im cheap Im just inex pensive things would rather have said scientific terms thoughts represent new epitome cost-effec tiveness two forces combined author Alpha-One resulted Hopefully will permit people ages enter ranks Free Flighters simple inex pensive enjoyable way design such probability success high cost absolute rock-bottom perform ance moderate reed-valve 049 en60 Model Aviation Ron St Jean gets off another flight fun-flier uses eye-dropper fuel tank limiting engine run thereby avoiding expense complication timer Pictures Allen Smith gine friend suggested model would have appeal looked like real airplane made way complete tail-dragging landing gear orig inal ship fully-adjusted third flight almost lost flew unanticipated thermal 15 20 minutes second model flew right off board too New enjoyment being found slow-climbing FFs Perhaps flying fun because get watch climb longer look like real planes flight Once transitioned glide thermal just well anything else would guess much added enjoy ment also due reduced risks fact ship lost does lose much terms dollars SFC Structureless Foam Composites construction replacement time effort also minimums fond hope FF clubs will pick up Alpha-One use ginner projects Much learning could take place very little expenditure en gine could come old Cox plastic RTF CL model such PT-19 l5 syringe used instead $15 timer rest materials dont amount hill beans wheels can come same old CL model engine may made inexpensively /16 ply wood thicker desired short length /16-in ID brass tubing Should beginners club have much fun success ships decide have contest would suggest no maximum engine run flight score would merely calculated dividing total time engine run both seconds scheme will expensive timers continue un necessary shorter engine runs nor mal could used no penalty flying small fields wind anticipated Foam-cutting Unless have band saw would suggest patterns cut matt board art supply store instead plywood wont last long set can made much quickly gluing registration blocks onto top camber patterns sure make right-handed left-handed Should equipped cut foam sheets rud August 1983 61 Eye-dropper tank stopper curbs loss fuel allows easy filling Engine old Cox PT-19 Landing gear sewn 1/16 ply plate reversed forward plans show Fwnning snuffer tube angle fuselage rear allows fuse pulled out Steel aluminum yardstick fine-line marker such Flair handy laying Out foam blanks preparation cutting Wire-cutting blank length Guide workbench provides square cut Actually cutting tool can used rough-shaping foam Complete pattern set SFB Alpha-One Made matt board plywood first step Full-size patterns included wing stabilizer cambers rudder front stabilizer hook Its simple matter scale off dimensions fuselage N /090C900 S0000000000/ FIREWALL DETAiL\ 000090RE/ / LANDING GEAR DETAIL / 0000 090/ S0000000F0NICC 0090007c.. 009000/ /DIHEDRALDE L N 97ooooC0o7 -x 7DT DETAIL 7 77 / /~0 PHA-i 9C09U/ -7 DT DETAIL 2 /7 / oN/ 0 WHEEL DETAIL I/2A FREE-FLIGHT MODEL WING AHEA280sqrn WEIGHT 7-1/2lOoza designed Ron St Jean oziginOl drawing Leonard St Jean traced ink Mossy Gome der /16 balsa may substituted /x-in foam Please refer previous SFC article April 1982 MA pictures hints convert large foam blocks SEC kits general information article also needed guidance mixing Nudope sanding covering filming finished model cutting wing sections identical avoid mix-ups sembling put /02 /i twist panel give trailing-edge washin right washout left will provide completed wing leftturn aileron-type warp needs Construction Once have foam kit cut out sand parts smooth Use plasticbacked sandpaper #150 roughing about #280-320 finishing desired putting radius leading trailing edges described previous SFC article DC Products Perma-Grit0 tool useful sanding Join three wing sections 5-mm epoxy using little possible avoid its being squeezed out ensuring dihedral looks about same tip Use second shot epoxy fill voids dihedral joint necessary after first has cured Using general information provided previously cover wing GM silkspan intermediate weight bottom wing first allowing generous fold-over topat least /2 over lap leading edge /4 trailing edge same top cover62 Model Aviation / / ANbN00EC090R0NO Hot-wire-cutting fuselage sides progress Foam has little-used FF Pattern being pinned foam blank preparatory hot-wire-cutting fuselage sides Spruce lIe sq pieces used pattern convex inflection points help eliminate possible botching hot wire isnt square PIN HOLES-FOR MOUNTING TO FOAM 0 WING BOTTOM CAMBER-2 REQUIRED WING CHORD 6-5/8 0 zzIz 0 WING TOP CAMBER 2 REQUIRED / 1/8 x 3/16 REGISTRATION BLOCKS GLUE TO OPPOSITE SIDE OF 2ND PATTERN 000 STAB TOP CAMBER 2 REQUIRED STAB CHORD 5-1/2 STAB BOTTOM PATTERN-2 REQUIRED 0 N / F" ~1 NOTE ALL PATTERNS ARE MADE FROM 1/8 PLYWOOD OR ARTISTS MATT BOARD ONT STAB HOOK RUDDER OUTLINE TALLER RUDDER NEEDED IF POLYHEDRAL WING IS USED FULL SIZE PATTERNS ALPHA ONE WING PLAN I15 IF ADDITIONAL STABILITY IS DESIRED CUT WINS HERE OLOCK-SANS ANGLES OR ENDS AND REJOIN TOTAL DIHEORAL AT EACH TIP IS 4-I/D I15 5-I/O ing lap over onto bottom dry sand lightly regular #150 paper put second layer paper both sides center section using about same overlaps will provide four thicknesses silkspan both leading trailing edges center section ter panels will have two layers stabilizer covered similarly except second layer paper used leading edge reinforce front ply wood hook Make about 3 wide ex tending aft leading edge LE about 11/2 Again generous overlaps should provided result four layers paper right LE Single-cover rudder allowing minimum overlap because curved edges surfaces dry sand apply second coat Nudope sand IIS~ STABILIZER ALPHA-ONE DIMENSIONS 0 0 1 4 5 E again thoroughly dry Double-cover entire fuselage except bottom landing gear mount installed very front Use -in /4-in overlaps Cover fuselage before installing firewall Add third layer paper forward LE stabilizer will perhaps three inches extending aft point another inch will strengthen otherwise weak spot plastic film used Alpha-One would appropriate point film wing tail sur faces following general instructions provided previously Epoxy rudder stabilizer Cut IA6inwide /2-in-long slot frontcenter stabilizer epoxy front Continued page 151 64 Model Aviation __02A 1 DIHEDRAL NOT TO SCALE IV4h71BIT/B FUSELAGE TOPI 30 B SIB 0/16NOTE ONE BOTTOM CAMBER PATTERNS51/2 TO ESTABLISH CORRECT CURVES 4SFOR WING R STAB PLATFORMS FUSELAGE SID 2/B CAT OUT 9/16HHI Its easy trim off prolections left 1/e sq pieces Author uses razor blade Rough-sanding fine end flat Perma Grit tool Author finds handy Jig made squarely cutting dihedral wing panels also handy cutting downthrust The finished foam authors right hand what will become left hand Authors SFC fuselage simply angled correct degree process fully described April 1982 MA ideal lightweight strong applications airports servicing private aircraft may have can order aircraft supply houses Aircraft-grade dope much thicker available hobby shops will require thinning model use Lanzo airfoils recently received ac companying airfoils Chet Lanzo Chet has recieved requests airfoils several interested parties has generously offered use modeling public drawings coordi nates allow reproduced chord size taken directly original ribs 1-larley Hoffman Harley Chet fly models together Both Lanzo Bomber Lanzo 1937 Nats RC Champ seen occasional meet modelers familiar Lanzo Record Breaker favorite 0-I designs Ive seen eight-footer scaled up 12 feet flown RC-assist Harley has built four versions Lanzo Bomber original eight-ft span plus 74 80 106 wingspans thanks Chet New goodies Ive advised avid Old-Timer enthusiast Woody Bartelt long last producing die cast aluminum timer housings Arden 099 199 en gines Now chance get Arden back service Contact Woody Micro Model Engineering 5600 Portage Road Suite 112 Kalamazoo MI 49002 Ive also received word new pub lication England SAM 35 Yearbook Vol available Lord David Baker 22 Ellington Rd Muswell Hill London N 10 England Seven bucks will bring door postpaid Clarence Haught 3226 Hone vsackle Dr Cocur dAlene ID 83814 SFC Alpha-One/St Jean Continued paqe 64 stab hook place Bend 3-in-long piece A2-in piano wire U shape epoxy rudder-stabilizer junction protrude out rear /2 Cut stabilizer platform either / hard /32 lightweight balsa grain running spanwise should 11/4 wide 5/ long provide mount /6 x a stab-stop block pieces may quickly joined cyanoacrylate glue CyA shaped suit sanded epoxy stab platform fuselage time unless fuselage filmed Perform trial balance model fuselage tail wing engine tem porarily assembled Should plane nose-heavy move engine aft until CG center gravity balance point about /x forward wings TE Carefully saw off excess forward fuse lage necessary point indicated reproducing 5-degree downthrust anglewith no sidethrust Cut out /4 plywood firewall fit front fuselage epoxy place Block-sand ordinary sandpaper feather foam being careful hold block slight angle paper foam will sanded Should firewall little undersize places add epoxy make level foam Nudope third layer silkspan fuselage overlaps firewall run ning aft cabin starts Put fourth layer about /2-in wide just around firewall help secure Put extra coat Nudope entire fuselage once dry trimmed sanded lightly Add coloring desired simulate cabin other trim label name address phone number case model becomes lost done completely dry film fuselage except landing gear stab plat form located front firewall Epoxy stab platform place adding 3-in-long U-shaped piece /32-in piano wire stab bottom fuse lage snuffer tube dethermalizer DI fuse Bend landing gear /16-in piano wire cut out its /16 plywood mounting plate fit fuselage drill /6-in holes ap propriate sew gear plate large needle carpet thread desired have gear forward shown mount backwards Epoxy Continued page 152 RUBBER STRIP FAI RUBBER Made USA SIZES 1/4 3/16 1/82/32 1/16 1mm thick 042 BOXED 16 ounces rubber per box PRICE$1250 per box ppdin USA California Residents Add 6% Sales Tax KSB TIMERS FUEL SHUTOFF 3OSEC $1195 6 MIN DT $1195 SEND 5OFOR 1982/83 CATALOG Model I-POBOX3957TORFlANcEcAgo51o OFF tMtt SMASH SUCCESS TOLEDO! Thousands Already SOLD! 242 PAGES KITS/RADIOS ENGINES/ACCESSORIES TOOLS/SUPPLIES BOOKS/EQUIPMENT Major minor US Manufacturers represented entire product line Technical Descriptions & Prices Photos & Illustrations & Buy Hundreds Scratch Plans Model Aviation RCM & Others An Invaluable Source Book Products Beginner Expert See July 83 Model Aviation Product Review Guide Dealer Inquiries Welcome See Local Dealer Order Direct NAME ADDRESS Send check money order consumers Guide consumers Guide P0 Box 376 Great Falls VA 22066 Send S6B0llncludes osta alhandlina canadian Orders sendInc udes postjhandl Overseas orders sand $786 Includes post/hand MA AUgUSt 1983 151 First Guide Devoted Exclusively R/C Aircraft PRODUCTS FOR THE DISCERNING MODELER Complete Line Exhaust Systems * Tuned Pipes * Muffled Tuned Pioes * Headers uri Mufflers * Expansion Mufflers Helicopter Ball Mufflers * Specialized Exhaust Systems Unsurpassed Workmanship & PerformanCe Nick Zirolis F4U CORSAIR 2 Cu size Engines Fberglass Fuselage & Cowling s aca able roe des go GIANT RIC SCALE PLAN DESIGNS AT 6 TEXAN24 I101,Span$2700ppUSA FOEKOR DR-i27 163Teipa$2500ppUSA F8F REARCAT2w 186Span$2700ppUSA CURTISS p421/ 184Span$2700ppUSA P4U CORSAIR2/ 193Span$2700ppUSA Fiberglass Cow ogs & Cairopes available Send otamp deta 00 brocoores os oar Goer Scale Accessories lOr plans seer Postpaid wtbie tOe UbAl thread contact points mount gear bottom fuselage Add two /g-jn dowel hooks mounting wing twist I/gm drill sharp wire fuselage make holes dowel Nudope landing gear plate stab plat form wing hooks add color seal pores Put extra coat firewall too needed two three coats total fuselage again dry sanded lightly spread thin coat epoxy onto exposed non-filmed surfaces film used brush spray entire fuselage varnish clear Formula U finish coat Mark front stab platform slot Make I/jr wide /4 long accept front stab hook its roles front stabilizer key DI angle limit Adjust length slot necessary rotating tail will pop up about 45-deg angle dethermalize model Cut slot X-Acto similar knife Once through balsa epoxy foam can gouged out clear hook dull tool Mount engine small wood screws sheet-metal screws long enough go through l/4in firewall blindmounting nuts have used instead /o-in firewall adequate No 2 screws 5/o-in /2-in length will fine Should ever strip replace No 4 screw same length Solder wheels landing gear suggest following procedure Locate small #2 brass washers inside Punch small hole thin piece card board single-edge razor blade matchbook cover etc slide onto axle wheel will go should have tight fit Solder washer inside axle working inside cardboard help hold washer prevent solder resin flux running onto axle wheel Once cool enough handle remove card board put wheel remount card board another piece first has come too loose its prior use add another brass washer After soldering outside washer cut tear out cardboard has also provided small amount end play prevent binding Lubricate 3-in-I Oil wheel does turn freely plan always keep engine runs around 15 sec less Icc syringe will adequate fuel tank 2 3cc sy ringe will provide engine runs up 40 seconds morefor long flights En gine runs can also made short measur ing fuel larger tank stock Babe Bee tank another calibrated syringe just tank filling using larger tank cut off 2/2cc mark will hold 2cc stopper added wish able visually check fuel level before launching mount fuel syringe externallyeither piece balsa sanded concave partially embed ding fuselage side such exposed tank found displeasing eye drill hole down through top fuselage center line epoxy syringe hole Cut 2/r-3cc syr inge flush top bottom protrudes just enough get fuel line event tilt top tank forward about 15-20 degrees compensate nose-high attitude under power rubber syringe piston needs some work make breathing stopper Drill punch small hole through hole epoxy thinnest piece tubing can find tubing will allow tank take air fuel level drops Cut tubing long enough provide exter nal handle epoxying tubing stopper put washer just little larger syringe top can grasped pulling out stopper Keep epoxy outside using Cox reed-valve engine other plastic CL model will necessary drill hole tank order get fuel line bottom syringe carburetor just use Cox tank instead syringe controlling amount fuel two cubic centi meters per fill calibrated syringe Should done may wise dis assemble tank engine ensure internal fuel line arranged pick up fuel bottom tank side Pre-flight rigging Check wing en sure still has left-turn twist tended As long eye can discern some twist sighting along bottom probably OK warp some electric heater Mount tail fuselage check approximate 45-degree DT angle shouldnt bind would hold tail down neither should significant side-to-side sloppiness would allow rudder setting vary Some slop piness may removed adding epoxy either hook sides slot both front rear tail firmly tied down rubberbands epoxy two small wooden blocks /e X /ig X stab key rear stab platform has cured again check see stab free go DT position just before gluing two keys adjust tail line-of-sight through rudder goes through wingmount platform about /3 fuselage width point right side will provide small amount left rudder needed partially overcome strong natural tendency model go right under power left turn glide imparted shimming up left side stab plat form small amountup %2 depend ing upon model just make sure some stab tilt dont have look too hard see Check finished model see balance point CG about 1 ard 152 Model Aviation Power Soar New Heights IT-SO Electric Motor 01 Cu equivelent gas engine displacement Send self-addressed stamped envelope catalog ap plication notes Leisure ii DeerspringllrvinelCA 92714 L -COUPON R ORDERED FROM TOWER HOBBIES FIND OUT WHAT YOUVE BEEN MISSING Tower Hobbies best place shop RC modeling needs customers enjoy best TOWER IALordering fast service giant product selection personalized service low discount prices Toll Free Inventory back up regular free issues Tower Talk value-packed private label products available Tower plus much much Give us try today find out what youve missing receive sample what youve missing CALL TOWER HOBBIES TOLL FREE OR MAIL coupon today FREE copy Tower Talk 32 40 page publication gives up-to-date information new products well hundreds low low priced products shown ads really want save money cant afford Tower Talk Please note reg ular Tower customers already receive Tower Talks automatically Mail Tower Hobbies Dept AMA PO Box 778 Champaign IL 61820 ____________________Name _______________________ ITOAIER HOBBIESAddress_______________________________________ POOoIOCO,o90r no6182039 30 ITOLIFREE Con ,oIUSA V go 00605 Al0a & 0o. 000 63L000000cityStateZip -COUPON trailing edge wing Plus minus /4 probably close enough now outside tolerance add some weight whichever end model needed Modeling clay and/or lead good Just dont put clay fingers fuel will getting tail-heavy models engine may shimmed forward another piece plywood similar firewall Once cut size epoxy original firewall Use propeller 6-in diameter 3-in pitch called 6-3 model shops neighbors will put up noise test-run engine home few times developing procedures can control engine runs 5-10 sec after starting adjusting engine Should engine run erratically due vibration causing fuel foam add little hard plastic mesh dish scrubber bottom tank Flying Test-gliding model best done over some long grass available mistakes dont cost much cushioning effect offers Start running against slight breeze dont fly windy days allowing model lift out hand return exercise will tell what approximate gliding speed model whether may have strong tendency stall dive Should stall obvious shim up leading edge stabilizer side front ply wood hook model diving put shim under stab TE making sure does bind dethermalizing action ready make first real test glide Run same speed before launch model nose slightly below level about five degrees Any stall dive correct before noticeable left turn glide flat slightly left ready first power flight Fuel model 5- 10-sec engine run about 1 /2cc give time start adjust engine Put prop backwards flat front convex rear wont pull hard anticipate thermal activity best use DT fuse smolders like cigar will break tiny rubberband holding down tail once embers reach allowing tail pop up spoil glide Start engine Make first flight engine running slowly rich mixture Launch over grass wind horizontal attitude well will climb 10-20 degree angle wing almost level making wide right-hand turn engine quits may stall once twice should go flat glide left OK try second flight engine leaned out maximum rpm OK too third flight should have prop turned around forward normal way Should experience fol lowing problems make corrections indicatedthen try another flight increasing power I If model turns steeply left under power reduce left rudder offset check wing make sure left-turn twist excessive twist excessive remove part before attempt ing another flight Sometimes model will go slightly left lower power wide right high power 2 If turn too tight right bank-angle steep add leftrudder offset after making sure some left-turn wing twist generally change rudder settings slicing off part rear key block epoxy ing other Some would prefer cut tab rudder glue back desired offset angle 3 If model wants loop reduce CLEVELAND GIANT PLANS -- No 1 in oostor flying ogodelo 1/32 1/4 ooe Fo RI -inoinhiog ol. uk bnoooyinobee AnIin old Ii, -C C1 F/F RobbO, Sloso Sooo 1919 oboolf,o donigo oooIoblo Roi Coiloclo eo. yoo 00 oodol, oho folio, pinoolype polo dot holhoog ooinelf ooy long, bo neod $150 fon picoioI oololog Mol oil 0 foloinoIIy peneoled P01bhp hhlonlond pk Ill olon 60, foinoigo 75c {Add $100 fo oj ,oiii Nooe foe N doom, Edoo-dT Po0od---Aooljonn 00 fiodCLEVELAND MODEL & SUPPLY CO 103070 Delnoll Ao, Cinoolond 0110 44102- August 1983 153 TOWER HOES CESSNA 188 AGVGON MANY MORE NEW ITEMS INSIDE PAW DIESELS En g lands Finest 049 29 New low low prices Send $100 list Eric clutton 3816 DeSoto Ave Fort Myers Florida 22905 SHIPPING AND HANDLING sO Page CATALOGUE Up $800 add $150 $200 PP/lot Class $801 $2000 add $225 copy will sent $2001 $4500 add $300 free requested-$4501 $7000 add $350 order over $7000 add $400 HOBBY HORN CA Addresaees add 6% taxSahobby specialtiesna Send MO Visa/MC#Exp 11173 Moran Street [Al Check allow up 30 PO Boa 2212 daya check clearance Westminster Ca 02603 CODExact Charges 7101 193 0311 HdI Cash OnIyIAII UPSI 714 0911253 incidence raising front sta bilizer add weight rear model prevent diving glide Test-glide again confirm changes have ad versely affected glide may also necessary add downthrust 4 If model dives-in under power falls like arrow glide incidence must increased raising rear stabilizer same time add weight nose plane eliminate glide stall Should problem occur under power reducing amount downthrust may answer 5 power pattern OK glide circle too wide shim up left side stab some morethe same amount front back change inci dence setting Should ship appear spiraling-in during glide phase flight widen circle removing some shims Dont confuse however lack incidence described Prob lem 4 Although other patterns may work some modem models will safest stable flown right un der power left glide right left pattern Should experience some difficulty problem covered previous SEC article please feel free direct questions author address phone number given below effort will made help would like try SEC AlphaOne before getting equipped cut foam yourself will provide foam-only kits $18 plus $300 shipping way can prove yourself SEC way go before having make time investment required cut own foam Good luck Ron St Jean 3744 E Nye Lane Carson City NV 89701 tele phone 702 883-2400 Editor max obtain photocopies Ron St JeatIS Structureless Foam Com posites article April 1982 issue ]r $1 00check money order pleasefrom Model Aviation 1810 Samuel Morse Dr Resron VA 22090 CL Aerobatics/Paul Continued pate 65 cables outstanding still best handles Maybe E-Z Just did us favor going out business opened door adjustability performance using handle variables did lot testing several years ago because using six-in bellcranks big control horns now seems lot fliers par ticularly eastern part States have gone heavy-duty control systems East Coast fliers using larger bellcranks l/oindiameter steel rod flap elevator horns fiberglass pushrods cus tom handles etc have another suggestion experi menting handles E-Z Just grip axis straight up down Bob Hunt handle inclined about 10 degrees see diagram find inclinedgrip handle about 10-12 degrees much comfortable suited natural anatomy hand extended flying position comfortable Hunt handle designed like need plane corner little faster try short ening arms overhang will see sensitivity arms get shorter Id like especially thank Doug Stout Rich Siefert Big Jim Greenaway helped handle ideas suggestions technology Anyone wishes contact Windy can 9 Union Avenue Little Ferry New Jersey 07643 tel 201 440-0905 thanks him supplying information about handles certainly agree light handle flies better also like idea having adjustable think can keep handle 75 gm less will have workable solution thats about 2/2 oz appears little confusion availability plans engine work Tom Dixon can contact him Controline Sales Tom Dixon PO Box 27540 Contract Station #7 Atlanta GA 30327 has added following plans list El Diablo Red Reinhardt Baby Barnstormer Half-A Guillow kit Tom-Tom Warrior Veco kits Gob bleswantz Charlie Mackey Argus Steve Wooley own plans Oriental 40 similar 35-size scaled up 40-46 engine Tom recently said has filled several orders customworked Fox 35 Stunt engines see May 1983 column want good 35 summer contact him about various stages rework veteran engine infrwmation stunt PAMPA contaft Wynn Paul 1640 Maywick Dr Lex ington KY 40504 CL Navy Carrier/Perry Continued tjaoe 66 figuration produced option original Profile Carrier Special en gine longer crankshaft will produce better shaft seal provide room carb problem CS conversions short shaft left little room carburetor According literature port ing head configuration have opti mized running straight alcohol fuel may overcompressed high-nitro fuels major advantage new Fox its weight nine oz lightest throttled 36 available beats Supertigre ST 35 fraction ounce engine uses Mark X carb fits square intake boss new carb may fit old Fox CS well engine due out May should able get 154 Model Aviation Horn Span--750 564 Sq SENSOAR glider HOBBY HORN Easlusisel 808ev HORN Kit SENSOAR Glider kit high quality kit Machine sot sanded parts Select quabty balsa spruce Detailed plans ar1tten InstructIons Far THERMAL SLOPE 51 ELECTRIC POWER VALUE PRICED t 51600 OLD 1IlThR NflS bull Parttal 105 P & W Semi-Kilo Cambined full stripwssd plan Now md Wire Window etc Mat Nate may purchased just seoll kits plans-write call prices 1930 Buccaneer54SS1 1938 Cbpper MR t72-$30 1917 Datlaire Sptaer108581 1140 Ranger-fO- $27 1939 Mereury72-$50 1935 Miss Axerica04--SSO 1041 Playboy Jr-54929 1941 Playboy Sr80-948 1938 Power llouse84-943 1940 Sailplane-28- 974 1940 So tongSOSZf 1938 Trenton Terror-2T-432 1139 Zipper54948 1139 Korda Wakefield-44- 117 MIOtPAY MODEL CO SemI-kIlo Csm5lned a/strIp 1938 Plying Quaker84S49 1037 Quaker Plasb07130 1032 Long Cabin78S42 1037 Air Chiet6I-040 STRUCKS 1940 74 Span 135 Sq SEMI-KIT Plan IncI- $3300 new r HIDE Combo IFuII Kit $8300 SCALE PLANS nd ORAWINGS 5 50 HEINKEL HE 1000 62 60s $1000 AlTENTION ERS EPOXY GLASS COWLS FOR NOSEN PICA S/fl AIORGA9I BALSA USA PLATt CONCEPT FLEET HOSTETLER RCM TCRAFT SHEBER PIUS & /a SCALE SIJPER CUB FOEKER 0-7 BOEING PI2 P-2B F4B2 F4B4 SPARROW HAWK GEE BEE MOO Y MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELIAS STARDUSTER Va SCALE J3-BI BABY FLYBABY AIRAMPER PILOT JUWOPAAWW 135 SCAfE 1/4 SCALE DECA THALON PIPER PA-/B ft OTHERS WHEEL PANTS FOR CITABRIA STAROUSTERIL PIUS SKYBOLT LIBERTYSPORT CHRISTEN EAGLE P6E HAWI STEARMAN SnNSON SR-B MULLIGAN ft OTHERS BRAZED TREATEDW1REGEARS6CABANES LARGE SCALE PLANS AVAILABLE Send $100 latest list supply Modelers libergiass parts plansWrite call us T 8 D FIBERGLASS SPECIALTIES 30925 BIOCK GARDEN CfIY Ml 49135 PHONE 313 421-6358 BIG STANDS BIG AIRPLANES Now Can Get Stands Big 1/a 1/3 Scale Airplanes * Holds airplane eaay wing inatallation * Positions plane easy access radio * Disassembles easy transportation STANDARD SIZE12 width front fuse 8 width rear fuse sizes larger atandard aend width dimensiolia custom built stands $1995 plus $300 postage ft handling Send check money order aspee PRODUCTIONS % Harlan Payne R#1 Ina IL 62846
Edition: Model Aviation - 1983/08
Page Numbers: 60, 61, 62, 63, 64, 151, 152, 153, 154
SFC __ne cant really tell fuselage flying surfaces made foam has shaped hot-wire method Adequate strength provided system developed author covering silkspan double-covering mostly finishing thinned white glue called Nudope Build low-cost Sport 1/2A Free Flight foam techniques perfected author Its less expensive balsa just strong Normal full-size plans arent needed unique construction method FF model created especially beginners master FF Power designerE Ron St Jean HAVE DISCOVERED within myself two driving forces guide life desire assist others enjoying thrill successfully flying Free Flight Gas model first time 2 desire help myself others save buck Driving force No 2 probably stems fact maternal grandfather Scotch descent has now made much important forces flation own mother used refer Grandpa Jones still teenager Its Im cheap Im just inex pensive things would rather have said scientific terms thoughts represent new epitome cost-effec tiveness two forces combined author Alpha-One resulted Hopefully will permit people ages enter ranks Free Flighters simple inex pensive enjoyable way design such probability success high cost absolute rock-bottom perform ance moderate reed-valve 049 en60 Model Aviation Ron St Jean gets off another flight fun-flier uses eye-dropper fuel tank limiting engine run thereby avoiding expense complication timer Pictures Allen Smith gine friend suggested model would have appeal looked like real airplane made way complete tail-dragging landing gear orig inal ship fully-adjusted third flight almost lost flew unanticipated thermal 15 20 minutes second model flew right off board too New enjoyment being found slow-climbing FFs Perhaps flying fun because get watch climb longer look like real planes flight Once transitioned glide thermal just well anything else would guess much added enjoy ment also due reduced risks fact ship lost does lose much terms dollars SFC Structureless Foam Composites construction replacement time effort also minimums fond hope FF clubs will pick up Alpha-One use ginner projects Much learning could take place very little expenditure en gine could come old Cox plastic RTF CL model such PT-19 l5 syringe used instead $15 timer rest materials dont amount hill beans wheels can come same old CL model engine may made inexpensively /16 ply wood thicker desired short length /16-in ID brass tubing Should beginners club have much fun success ships decide have contest would suggest no maximum engine run flight score would merely calculated dividing total time engine run both seconds scheme will expensive timers continue un necessary shorter engine runs nor mal could used no penalty flying small fields wind anticipated Foam-cutting Unless have band saw would suggest patterns cut matt board art supply store instead plywood wont last long set can made much quickly gluing registration blocks onto top camber patterns sure make right-handed left-handed Should equipped cut foam sheets rud August 1983 61 Eye-dropper tank stopper curbs loss fuel allows easy filling Engine old Cox PT-19 Landing gear sewn 1/16 ply plate reversed forward plans show Fwnning snuffer tube angle fuselage rear allows fuse pulled out Steel aluminum yardstick fine-line marker such Flair handy laying Out foam blanks preparation cutting Wire-cutting blank length Guide workbench provides square cut Actually cutting tool can used rough-shaping foam Complete pattern set SFB Alpha-One Made matt board plywood first step Full-size patterns included wing stabilizer cambers rudder front stabilizer hook Its simple matter scale off dimensions fuselage N /090C900 S0000000000/ FIREWALL DETAiL\ 000090RE/ / LANDING GEAR DETAIL / 0000 090/ S0000000F0NICC 0090007c.. 009000/ /DIHEDRALDE L N 97ooooC0o7 -x 7DT DETAIL 7 77 / /~0 PHA-i 9C09U/ -7 DT DETAIL 2 /7 / oN/ 0 WHEEL DETAIL I/2A FREE-FLIGHT MODEL WING AHEA280sqrn WEIGHT 7-1/2lOoza designed Ron St Jean oziginOl drawing Leonard St Jean traced ink Mossy Gome der /16 balsa may substituted /x-in foam Please refer previous SFC article April 1982 MA pictures hints convert large foam blocks SEC kits general information article also needed guidance mixing Nudope sanding covering filming finished model cutting wing sections identical avoid mix-ups sembling put /02 /i twist panel give trailing-edge washin right washout left will provide completed wing leftturn aileron-type warp needs Construction Once have foam kit cut out sand parts smooth Use plasticbacked sandpaper #150 roughing about #280-320 finishing desired putting radius leading trailing edges described previous SFC article DC Products Perma-Grit0 tool useful sanding Join three wing sections 5-mm epoxy using little possible avoid its being squeezed out ensuring dihedral looks about same tip Use second shot epoxy fill voids dihedral joint necessary after first has cured Using general information provided previously cover wing GM silkspan intermediate weight bottom wing first allowing generous fold-over topat least /2 over lap leading edge /4 trailing edge same top cover62 Model Aviation / / ANbN00EC090R0NO Hot-wire-cutting fuselage sides progress Foam has little-used FF Pattern being pinned foam blank preparatory hot-wire-cutting fuselage sides Spruce lIe sq pieces used pattern convex inflection points help eliminate possible botching hot wire isnt square PIN HOLES-FOR MOUNTING TO FOAM 0 WING BOTTOM CAMBER-2 REQUIRED WING CHORD 6-5/8 0 zzIz 0 WING TOP CAMBER 2 REQUIRED / 1/8 x 3/16 REGISTRATION BLOCKS GLUE TO OPPOSITE SIDE OF 2ND PATTERN 000 STAB TOP CAMBER 2 REQUIRED STAB CHORD 5-1/2 STAB BOTTOM PATTERN-2 REQUIRED 0 N / F" ~1 NOTE ALL PATTERNS ARE MADE FROM 1/8 PLYWOOD OR ARTISTS MATT BOARD ONT STAB HOOK RUDDER OUTLINE TALLER RUDDER NEEDED IF POLYHEDRAL WING IS USED FULL SIZE PATTERNS ALPHA ONE WING PLAN I15 IF ADDITIONAL STABILITY IS DESIRED CUT WINS HERE OLOCK-SANS ANGLES OR ENDS AND REJOIN TOTAL DIHEORAL AT EACH TIP IS 4-I/D I15 5-I/O ing lap over onto bottom dry sand lightly regular #150 paper put second layer paper both sides center section using about same overlaps will provide four thicknesses silkspan both leading trailing edges center section ter panels will have two layers stabilizer covered similarly except second layer paper used leading edge reinforce front ply wood hook Make about 3 wide ex tending aft leading edge LE about 11/2 Again generous overlaps should provided result four layers paper right LE Single-cover rudder allowing minimum overlap because curved edges surfaces dry sand apply second coat Nudope sand IIS~ STABILIZER ALPHA-ONE DIMENSIONS 0 0 1 4 5 E again thoroughly dry Double-cover entire fuselage except bottom landing gear mount installed very front Use -in /4-in overlaps Cover fuselage before installing firewall Add third layer paper forward LE stabilizer will perhaps three inches extending aft point another inch will strengthen otherwise weak spot plastic film used Alpha-One would appropriate point film wing tail sur faces following general instructions provided previously Epoxy rudder stabilizer Cut IA6inwide /2-in-long slot frontcenter stabilizer epoxy front Continued page 151 64 Model Aviation __02A 1 DIHEDRAL NOT TO SCALE IV4h71BIT/B FUSELAGE TOPI 30 B SIB 0/16NOTE ONE BOTTOM CAMBER PATTERNS51/2 TO ESTABLISH CORRECT CURVES 4SFOR WING R STAB PLATFORMS FUSELAGE SID 2/B CAT OUT 9/16HHI Its easy trim off prolections left 1/e sq pieces Author uses razor blade Rough-sanding fine end flat Perma Grit tool Author finds handy Jig made squarely cutting dihedral wing panels also handy cutting downthrust The finished foam authors right hand what will become left hand Authors SFC fuselage simply angled correct degree process fully described April 1982 MA ideal lightweight strong applications airports servicing private aircraft may have can order aircraft supply houses Aircraft-grade dope much thicker available hobby shops will require thinning model use Lanzo airfoils recently received ac companying airfoils Chet Lanzo Chet has recieved requests airfoils several interested parties has generously offered use modeling public drawings coordi nates allow reproduced chord size taken directly original ribs 1-larley Hoffman Harley Chet fly models together Both Lanzo Bomber Lanzo 1937 Nats RC Champ seen occasional meet modelers familiar Lanzo Record Breaker favorite 0-I designs Ive seen eight-footer scaled up 12 feet flown RC-assist Harley has built four versions Lanzo Bomber original eight-ft span plus 74 80 106 wingspans thanks Chet New goodies Ive advised avid Old-Timer enthusiast Woody Bartelt long last producing die cast aluminum timer housings Arden 099 199 en gines Now chance get Arden back service Contact Woody Micro Model Engineering 5600 Portage Road Suite 112 Kalamazoo MI 49002 Ive also received word new pub lication England SAM 35 Yearbook Vol available Lord David Baker 22 Ellington Rd Muswell Hill London N 10 England Seven bucks will bring door postpaid Clarence Haught 3226 Hone vsackle Dr Cocur dAlene ID 83814 SFC Alpha-One/St Jean Continued paqe 64 stab hook place Bend 3-in-long piece A2-in piano wire U shape epoxy rudder-stabilizer junction protrude out rear /2 Cut stabilizer platform either / hard /32 lightweight balsa grain running spanwise should 11/4 wide 5/ long provide mount /6 x a stab-stop block pieces may quickly joined cyanoacrylate glue CyA shaped suit sanded epoxy stab platform fuselage time unless fuselage filmed Perform trial balance model fuselage tail wing engine tem porarily assembled Should plane nose-heavy move engine aft until CG center gravity balance point about /x forward wings TE Carefully saw off excess forward fuse lage necessary point indicated reproducing 5-degree downthrust anglewith no sidethrust Cut out /4 plywood firewall fit front fuselage epoxy place Block-sand ordinary sandpaper feather foam being careful hold block slight angle paper foam will sanded Should firewall little undersize places add epoxy make level foam Nudope third layer silkspan fuselage overlaps firewall run ning aft cabin starts Put fourth layer about /2-in wide just around firewall help secure Put extra coat Nudope entire fuselage once dry trimmed sanded lightly Add coloring desired simulate cabin other trim label name address phone number case model becomes lost done completely dry film fuselage except landing gear stab plat form located front firewall Epoxy stab platform place adding 3-in-long U-shaped piece /32-in piano wire stab bottom fuse lage snuffer tube dethermalizer DI fuse Bend landing gear /16-in piano wire cut out its /16 plywood mounting plate fit fuselage drill /6-in holes ap propriate sew gear plate large needle carpet thread desired have gear forward shown mount backwards Epoxy Continued page 152 RUBBER STRIP FAI RUBBER Made USA SIZES 1/4 3/16 1/82/32 1/16 1mm thick 042 BOXED 16 ounces rubber per box PRICE$1250 per box ppdin USA California Residents Add 6% Sales Tax KSB TIMERS FUEL SHUTOFF 3OSEC $1195 6 MIN DT $1195 SEND 5OFOR 1982/83 CATALOG Model I-POBOX3957TORFlANcEcAgo51o OFF tMtt SMASH SUCCESS TOLEDO! Thousands Already SOLD! 242 PAGES KITS/RADIOS ENGINES/ACCESSORIES TOOLS/SUPPLIES BOOKS/EQUIPMENT Major minor US Manufacturers represented entire product line Technical Descriptions & Prices Photos & Illustrations & Buy Hundreds Scratch Plans Model Aviation RCM & Others An Invaluable Source Book Products Beginner Expert See July 83 Model Aviation Product Review Guide Dealer Inquiries Welcome See Local Dealer Order Direct NAME ADDRESS Send check money order consumers Guide consumers Guide P0 Box 376 Great Falls VA 22066 Send S6B0llncludes osta alhandlina canadian Orders sendInc udes postjhandl Overseas orders sand $786 Includes post/hand MA AUgUSt 1983 151 First Guide Devoted Exclusively R/C Aircraft PRODUCTS FOR THE DISCERNING MODELER Complete Line Exhaust Systems * Tuned Pipes * Muffled Tuned Pioes * Headers uri Mufflers * Expansion Mufflers Helicopter Ball Mufflers * Specialized Exhaust Systems Unsurpassed Workmanship & PerformanCe Nick Zirolis F4U CORSAIR 2 Cu size Engines Fberglass Fuselage & Cowling s aca able roe des go GIANT RIC SCALE PLAN DESIGNS AT 6 TEXAN24 I101,Span$2700ppUSA FOEKOR DR-i27 163Teipa$2500ppUSA F8F REARCAT2w 186Span$2700ppUSA CURTISS p421/ 184Span$2700ppUSA P4U CORSAIR2/ 193Span$2700ppUSA Fiberglass Cow ogs & Cairopes available Send otamp deta 00 brocoores os oar Goer Scale Accessories lOr plans seer Postpaid wtbie tOe UbAl thread contact points mount gear bottom fuselage Add two /g-jn dowel hooks mounting wing twist I/gm drill sharp wire fuselage make holes dowel Nudope landing gear plate stab plat form wing hooks add color seal pores Put extra coat firewall too needed two three coats total fuselage again dry sanded lightly spread thin coat epoxy onto exposed non-filmed surfaces film used brush spray entire fuselage varnish clear Formula U finish coat Mark front stab platform slot Make I/jr wide /4 long accept front stab hook its roles front stabilizer key DI angle limit Adjust length slot necessary rotating tail will pop up about 45-deg angle dethermalize model Cut slot X-Acto similar knife Once through balsa epoxy foam can gouged out clear hook dull tool Mount engine small wood screws sheet-metal screws long enough go through l/4in firewall blindmounting nuts have used instead /o-in firewall adequate No 2 screws 5/o-in /2-in length will fine Should ever strip replace No 4 screw same length Solder wheels landing gear suggest following procedure Locate small #2 brass washers inside Punch small hole thin piece card board single-edge razor blade matchbook cover etc slide onto axle wheel will go should have tight fit Solder washer inside axle working inside cardboard help hold washer prevent solder resin flux running onto axle wheel Once cool enough handle remove card board put wheel remount card board another piece first has come too loose its prior use add another brass washer After soldering outside washer cut tear out cardboard has also provided small amount end play prevent binding Lubricate 3-in-I Oil wheel does turn freely plan always keep engine runs around 15 sec less Icc syringe will adequate fuel tank 2 3cc sy ringe will provide engine runs up 40 seconds morefor long flights En gine runs can also made short measur ing fuel larger tank stock Babe Bee tank another calibrated syringe just tank filling using larger tank cut off 2/2cc mark will hold 2cc stopper added wish able visually check fuel level before launching mount fuel syringe externallyeither piece balsa sanded concave partially embed ding fuselage side such exposed tank found displeasing eye drill hole down through top fuselage center line epoxy syringe hole Cut 2/r-3cc syr inge flush top bottom protrudes just enough get fuel line event tilt top tank forward about 15-20 degrees compensate nose-high attitude under power rubber syringe piston needs some work make breathing stopper Drill punch small hole through hole epoxy thinnest piece tubing can find tubing will allow tank take air fuel level drops Cut tubing long enough provide exter nal handle epoxying tubing stopper put washer just little larger syringe top can grasped pulling out stopper Keep epoxy outside using Cox reed-valve engine other plastic CL model will necessary drill hole tank order get fuel line bottom syringe carburetor just use Cox tank instead syringe controlling amount fuel two cubic centi meters per fill calibrated syringe Should done may wise dis assemble tank engine ensure internal fuel line arranged pick up fuel bottom tank side Pre-flight rigging Check wing en sure still has left-turn twist tended As long eye can discern some twist sighting along bottom probably OK warp some electric heater Mount tail fuselage check approximate 45-degree DT angle shouldnt bind would hold tail down neither should significant side-to-side sloppiness would allow rudder setting vary Some slop piness may removed adding epoxy either hook sides slot both front rear tail firmly tied down rubberbands epoxy two small wooden blocks /e X /ig X stab key rear stab platform has cured again check see stab free go DT position just before gluing two keys adjust tail line-of-sight through rudder goes through wingmount platform about /3 fuselage width point right side will provide small amount left rudder needed partially overcome strong natural tendency model go right under power left turn glide imparted shimming up left side stab plat form small amountup %2 depend ing upon model just make sure some stab tilt dont have look too hard see Check finished model see balance point CG about 1 ard 152 Model Aviation Power Soar New Heights IT-SO Electric Motor 01 Cu equivelent gas engine displacement Send self-addressed stamped envelope catalog ap plication notes Leisure ii DeerspringllrvinelCA 92714 L -COUPON R ORDERED FROM TOWER HOBBIES FIND OUT WHAT YOUVE BEEN MISSING Tower Hobbies best place shop RC modeling needs customers enjoy best TOWER IALordering fast service giant product selection personalized service low discount prices Toll Free Inventory back up regular free issues Tower Talk value-packed private label products available Tower plus much much Give us try today find out what youve missing receive sample what youve missing CALL TOWER HOBBIES TOLL FREE OR MAIL coupon today FREE copy Tower Talk 32 40 page publication gives up-to-date information new products well hundreds low low priced products shown ads really want save money cant afford Tower Talk Please note reg ular Tower customers already receive Tower Talks automatically Mail Tower Hobbies Dept AMA PO Box 778 Champaign IL 61820 ____________________Name _______________________ ITOAIER HOBBIESAddress_______________________________________ POOoIOCO,o90r no6182039 30 ITOLIFREE Con ,oIUSA V go 00605 Al0a & 0o. 000 63L000000cityStateZip -COUPON trailing edge wing Plus minus /4 probably close enough now outside tolerance add some weight whichever end model needed Modeling clay and/or lead good Just dont put clay fingers fuel will getting tail-heavy models engine may shimmed forward another piece plywood similar firewall Once cut size epoxy original firewall Use propeller 6-in diameter 3-in pitch called 6-3 model shops neighbors will put up noise test-run engine home few times developing procedures can control engine runs 5-10 sec after starting adjusting engine Should engine run erratically due vibration causing fuel foam add little hard plastic mesh dish scrubber bottom tank Flying Test-gliding model best done over some long grass available mistakes dont cost much cushioning effect offers Start running against slight breeze dont fly windy days allowing model lift out hand return exercise will tell what approximate gliding speed model whether may have strong tendency stall dive Should stall obvious shim up leading edge stabilizer side front ply wood hook model diving put shim under stab TE making sure does bind dethermalizing action ready make first real test glide Run same speed before launch model nose slightly below level about five degrees Any stall dive correct before noticeable left turn glide flat slightly left ready first power flight Fuel model 5- 10-sec engine run about 1 /2cc give time start adjust engine Put prop backwards flat front convex rear wont pull hard anticipate thermal activity best use DT fuse smolders like cigar will break tiny rubberband holding down tail once embers reach allowing tail pop up spoil glide Start engine Make first flight engine running slowly rich mixture Launch over grass wind horizontal attitude well will climb 10-20 degree angle wing almost level making wide right-hand turn engine quits may stall once twice should go flat glide left OK try second flight engine leaned out maximum rpm OK too third flight should have prop turned around forward normal way Should experience fol lowing problems make corrections indicatedthen try another flight increasing power I If model turns steeply left under power reduce left rudder offset check wing make sure left-turn twist excessive twist excessive remove part before attempt ing another flight Sometimes model will go slightly left lower power wide right high power 2 If turn too tight right bank-angle steep add leftrudder offset after making sure some left-turn wing twist generally change rudder settings slicing off part rear key block epoxy ing other Some would prefer cut tab rudder glue back desired offset angle 3 If model wants loop reduce CLEVELAND GIANT PLANS -- No 1 in oostor flying ogodelo 1/32 1/4 ooe Fo RI -inoinhiog ol. uk bnoooyinobee AnIin old Ii, -C C1 F/F RobbO, Sloso Sooo 1919 oboolf,o donigo oooIoblo Roi Coiloclo eo. yoo 00 oodol, oho folio, pinoolype polo dot holhoog ooinelf ooy long, bo neod $150 fon picoioI oololog Mol oil 0 foloinoIIy peneoled P01bhp hhlonlond pk Ill olon 60, foinoigo 75c {Add $100 fo oj ,oiii Nooe foe N doom, Edoo-dT Po0od---Aooljonn 00 fiodCLEVELAND MODEL & SUPPLY CO 103070 Delnoll Ao, Cinoolond 0110 44102- August 1983 153 TOWER HOES CESSNA 188 AGVGON MANY MORE NEW ITEMS INSIDE PAW DIESELS En g lands Finest 049 29 New low low prices Send $100 list Eric clutton 3816 DeSoto Ave Fort Myers Florida 22905 SHIPPING AND HANDLING sO Page CATALOGUE Up $800 add $150 $200 PP/lot Class $801 $2000 add $225 copy will sent $2001 $4500 add $300 free requested-$4501 $7000 add $350 order over $7000 add $400 HOBBY HORN CA Addresaees add 6% taxSahobby specialtiesna Send MO Visa/MC#Exp 11173 Moran Street [Al Check allow up 30 PO Boa 2212 daya check clearance Westminster Ca 02603 CODExact Charges 7101 193 0311 HdI Cash OnIyIAII UPSI 714 0911253 incidence raising front sta bilizer add weight rear model prevent diving glide Test-glide again confirm changes have ad versely affected glide may also necessary add downthrust 4 If model dives-in under power falls like arrow glide incidence must increased raising rear stabilizer same time add weight nose plane eliminate glide stall Should problem occur under power reducing amount downthrust may answer 5 power pattern OK glide circle too wide shim up left side stab some morethe same amount front back change inci dence setting Should ship appear spiraling-in during glide phase flight widen circle removing some shims Dont confuse however lack incidence described Prob lem 4 Although other patterns may work some modem models will safest stable flown right un der power left glide right left pattern Should experience some difficulty problem covered previous SEC article please feel free direct questions author address phone number given below effort will made help would like try SEC AlphaOne before getting equipped cut foam yourself will provide foam-only kits $18 plus $300 shipping way can prove yourself SEC way go before having make time investment required cut own foam Good luck Ron St Jean 3744 E Nye Lane Carson City NV 89701 tele phone 702 883-2400 Editor max obtain photocopies Ron St JeatIS Structureless Foam Com posites article April 1982 issue ]r $1 00check money order pleasefrom Model Aviation 1810 Samuel Morse Dr Resron VA 22090 CL Aerobatics/Paul Continued pate 65 cables outstanding still best handles Maybe E-Z Just did us favor going out business opened door adjustability performance using handle variables did lot testing several years ago because using six-in bellcranks big control horns now seems lot fliers par ticularly eastern part States have gone heavy-duty control systems East Coast fliers using larger bellcranks l/oindiameter steel rod flap elevator horns fiberglass pushrods cus tom handles etc have another suggestion experi menting handles E-Z Just grip axis straight up down Bob Hunt handle inclined about 10 degrees see diagram find inclinedgrip handle about 10-12 degrees much comfortable suited natural anatomy hand extended flying position comfortable Hunt handle designed like need plane corner little faster try short ening arms overhang will see sensitivity arms get shorter Id like especially thank Doug Stout Rich Siefert Big Jim Greenaway helped handle ideas suggestions technology Anyone wishes contact Windy can 9 Union Avenue Little Ferry New Jersey 07643 tel 201 440-0905 thanks him supplying information about handles certainly agree light handle flies better also like idea having adjustable think can keep handle 75 gm less will have workable solution thats about 2/2 oz appears little confusion availability plans engine work Tom Dixon can contact him Controline Sales Tom Dixon PO Box 27540 Contract Station #7 Atlanta GA 30327 has added following plans list El Diablo Red Reinhardt Baby Barnstormer Half-A Guillow kit Tom-Tom Warrior Veco kits Gob bleswantz Charlie Mackey Argus Steve Wooley own plans Oriental 40 similar 35-size scaled up 40-46 engine Tom recently said has filled several orders customworked Fox 35 Stunt engines see May 1983 column want good 35 summer contact him about various stages rework veteran engine infrwmation stunt PAMPA contaft Wynn Paul 1640 Maywick Dr Lex ington KY 40504 CL Navy Carrier/Perry Continued tjaoe 66 figuration produced option original Profile Carrier Special en gine longer crankshaft will produce better shaft seal provide room carb problem CS conversions short shaft left little room carburetor According literature port ing head configuration have opti mized running straight alcohol fuel may overcompressed high-nitro fuels major advantage new Fox its weight nine oz lightest throttled 36 available beats Supertigre ST 35 fraction ounce engine uses Mark X carb fits square intake boss new carb may fit old Fox CS well engine due out May should able get 154 Model Aviation Horn Span--750 564 Sq SENSOAR glider HOBBY HORN Easlusisel 808ev HORN Kit SENSOAR Glider kit high quality kit Machine sot sanded parts Select quabty balsa spruce Detailed plans ar1tten InstructIons Far THERMAL SLOPE 51 ELECTRIC POWER VALUE PRICED t 51600 OLD 1IlThR NflS bull Parttal 105 P & W Semi-Kilo Cambined full stripwssd plan Now md Wire Window etc Mat Nate may purchased just seoll kits plans-write call prices 1930 Buccaneer54SS1 1938 Cbpper MR t72-$30 1917 Datlaire Sptaer108581 1140 Ranger-fO- $27 1939 Mereury72-$50 1935 Miss Axerica04--SSO 1041 Playboy Jr-54929 1941 Playboy Sr80-948 1938 Power llouse84-943 1940 Sailplane-28- 974 1940 So tongSOSZf 1938 Trenton Terror-2T-432 1139 Zipper54948 1139 Korda Wakefield-44- 117 MIOtPAY MODEL CO SemI-kIlo Csm5lned a/strIp 1938 Plying Quaker84S49 1037 Quaker Plasb07130 1032 Long Cabin78S42 1037 Air Chiet6I-040 STRUCKS 1940 74 Span 135 Sq SEMI-KIT Plan IncI- $3300 new r HIDE Combo IFuII Kit $8300 SCALE PLANS nd ORAWINGS 5 50 HEINKEL HE 1000 62 60s $1000 AlTENTION ERS EPOXY GLASS COWLS FOR NOSEN PICA S/fl AIORGA9I BALSA USA PLATt CONCEPT FLEET HOSTETLER RCM TCRAFT SHEBER PIUS & /a SCALE SIJPER CUB FOEKER 0-7 BOEING PI2 P-2B F4B2 F4B4 SPARROW HAWK GEE BEE MOO Y MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELIAS STARDUSTER Va SCALE J3-BI BABY FLYBABY AIRAMPER PILOT JUWOPAAWW 135 SCAfE 1/4 SCALE DECA THALON PIPER PA-/B ft OTHERS WHEEL PANTS FOR CITABRIA STAROUSTERIL PIUS SKYBOLT LIBERTYSPORT CHRISTEN EAGLE P6E HAWI STEARMAN SnNSON SR-B MULLIGAN ft OTHERS BRAZED TREATEDW1REGEARS6CABANES LARGE SCALE PLANS AVAILABLE Send $100 latest list supply Modelers libergiass parts plansWrite call us T 8 D FIBERGLASS SPECIALTIES 30925 BIOCK GARDEN CfIY Ml 49135 PHONE 313 421-6358 BIG STANDS BIG AIRPLANES Now Can Get Stands Big 1/a 1/3 Scale Airplanes * Holds airplane eaay wing inatallation * Positions plane easy access radio * Disassembles easy transportation STANDARD SIZE12 width front fuse 8 width rear fuse sizes larger atandard aend width dimensiolia custom built stands $1995 plus $300 postage ft handling Send check money order aspee PRODUCTIONS % Harlan Payne R#1 Ina IL 62846
Edition: Model Aviation - 1983/08
Page Numbers: 60, 61, 62, 63, 64, 151, 152, 153, 154
SFC __ne cant really tell fuselage flying surfaces made foam has shaped hot-wire method Adequate strength provided system developed author covering silkspan double-covering mostly finishing thinned white glue called Nudope Build low-cost Sport 1/2A Free Flight foam techniques perfected author Its less expensive balsa just strong Normal full-size plans arent needed unique construction method FF model created especially beginners master FF Power designerE Ron St Jean HAVE DISCOVERED within myself two driving forces guide life desire assist others enjoying thrill successfully flying Free Flight Gas model first time 2 desire help myself others save buck Driving force No 2 probably stems fact maternal grandfather Scotch descent has now made much important forces flation own mother used refer Grandpa Jones still teenager Its Im cheap Im just inex pensive things would rather have said scientific terms thoughts represent new epitome cost-effec tiveness two forces combined author Alpha-One resulted Hopefully will permit people ages enter ranks Free Flighters simple inex pensive enjoyable way design such probability success high cost absolute rock-bottom perform ance moderate reed-valve 049 en60 Model Aviation Ron St Jean gets off another flight fun-flier uses eye-dropper fuel tank limiting engine run thereby avoiding expense complication timer Pictures Allen Smith gine friend suggested model would have appeal looked like real airplane made way complete tail-dragging landing gear orig inal ship fully-adjusted third flight almost lost flew unanticipated thermal 15 20 minutes second model flew right off board too New enjoyment being found slow-climbing FFs Perhaps flying fun because get watch climb longer look like real planes flight Once transitioned glide thermal just well anything else would guess much added enjoy ment also due reduced risks fact ship lost does lose much terms dollars SFC Structureless Foam Composites construction replacement time effort also minimums fond hope FF clubs will pick up Alpha-One use ginner projects Much learning could take place very little expenditure en gine could come old Cox plastic RTF CL model such PT-19 l5 syringe used instead $15 timer rest materials dont amount hill beans wheels can come same old CL model engine may made inexpensively /16 ply wood thicker desired short length /16-in ID brass tubing Should beginners club have much fun success ships decide have contest would suggest no maximum engine run flight score would merely calculated dividing total time engine run both seconds scheme will expensive timers continue un necessary shorter engine runs nor mal could used no penalty flying small fields wind anticipated Foam-cutting Unless have band saw would suggest patterns cut matt board art supply store instead plywood wont last long set can made much quickly gluing registration blocks onto top camber patterns sure make right-handed left-handed Should equipped cut foam sheets rud August 1983 61 Eye-dropper tank stopper curbs loss fuel allows easy filling Engine old Cox PT-19 Landing gear sewn 1/16 ply plate reversed forward plans show Fwnning snuffer tube angle fuselage rear allows fuse pulled out Steel aluminum yardstick fine-line marker such Flair handy laying Out foam blanks preparation cutting Wire-cutting blank length Guide workbench provides square cut Actually cutting tool can used rough-shaping foam Complete pattern set SFB Alpha-One Made matt board plywood first step Full-size patterns included wing stabilizer cambers rudder front stabilizer hook Its simple matter scale off dimensions fuselage N /090C900 S0000000000/ FIREWALL DETAiL\ 000090RE/ / LANDING GEAR DETAIL / 0000 090/ S0000000F0NICC 0090007c.. 009000/ /DIHEDRALDE L N 97ooooC0o7 -x 7DT DETAIL 7 77 / /~0 PHA-i 9C09U/ -7 DT DETAIL 2 /7 / oN/ 0 WHEEL DETAIL I/2A FREE-FLIGHT MODEL WING AHEA280sqrn WEIGHT 7-1/2lOoza designed Ron St Jean oziginOl drawing Leonard St Jean traced ink Mossy Gome der /16 balsa may substituted /x-in foam Please refer previous SFC article April 1982 MA pictures hints convert large foam blocks SEC kits general information article also needed guidance mixing Nudope sanding covering filming finished model cutting wing sections identical avoid mix-ups sembling put /02 /i twist panel give trailing-edge washin right washout left will provide completed wing leftturn aileron-type warp needs Construction Once have foam kit cut out sand parts smooth Use plasticbacked sandpaper #150 roughing about #280-320 finishing desired putting radius leading trailing edges described previous SFC article DC Products Perma-Grit0 tool useful sanding Join three wing sections 5-mm epoxy using little possible avoid its being squeezed out ensuring dihedral looks about same tip Use second shot epoxy fill voids dihedral joint necessary after first has cured Using general information provided previously cover wing GM silkspan intermediate weight bottom wing first allowing generous fold-over topat least /2 over lap leading edge /4 trailing edge same top cover62 Model Aviation / / ANbN00EC090R0NO Hot-wire-cutting fuselage sides progress Foam has little-used FF Pattern being pinned foam blank preparatory hot-wire-cutting fuselage sides Spruce lIe sq pieces used pattern convex inflection points help eliminate possible botching hot wire isnt square PIN HOLES-FOR MOUNTING TO FOAM 0 WING BOTTOM CAMBER-2 REQUIRED WING CHORD 6-5/8 0 zzIz 0 WING TOP CAMBER 2 REQUIRED / 1/8 x 3/16 REGISTRATION BLOCKS GLUE TO OPPOSITE SIDE OF 2ND PATTERN 000 STAB TOP CAMBER 2 REQUIRED STAB CHORD 5-1/2 STAB BOTTOM PATTERN-2 REQUIRED 0 N / F" ~1 NOTE ALL PATTERNS ARE MADE FROM 1/8 PLYWOOD OR ARTISTS MATT BOARD ONT STAB HOOK RUDDER OUTLINE TALLER RUDDER NEEDED IF POLYHEDRAL WING IS USED FULL SIZE PATTERNS ALPHA ONE WING PLAN I15 IF ADDITIONAL STABILITY IS DESIRED CUT WINS HERE OLOCK-SANS ANGLES OR ENDS AND REJOIN TOTAL DIHEORAL AT EACH TIP IS 4-I/D I15 5-I/O ing lap over onto bottom dry sand lightly regular #150 paper put second layer paper both sides center section using about same overlaps will provide four thicknesses silkspan both leading trailing edges center section ter panels will have two layers stabilizer covered similarly except second layer paper used leading edge reinforce front ply wood hook Make about 3 wide ex tending aft leading edge LE about 11/2 Again generous overlaps should provided result four layers paper right LE Single-cover rudder allowing minimum overlap because curved edges surfaces dry sand apply second coat Nudope sand IIS~ STABILIZER ALPHA-ONE DIMENSIONS 0 0 1 4 5 E again thoroughly dry Double-cover entire fuselage except bottom landing gear mount installed very front Use -in /4-in overlaps Cover fuselage before installing firewall Add third layer paper forward LE stabilizer will perhaps three inches extending aft point another inch will strengthen otherwise weak spot plastic film used Alpha-One would appropriate point film wing tail sur faces following general instructions provided previously Epoxy rudder stabilizer Cut IA6inwide /2-in-long slot frontcenter stabilizer epoxy front Continued page 151 64 Model Aviation __02A 1 DIHEDRAL NOT TO SCALE IV4h71BIT/B FUSELAGE TOPI 30 B SIB 0/16NOTE ONE BOTTOM CAMBER PATTERNS51/2 TO ESTABLISH CORRECT CURVES 4SFOR WING R STAB PLATFORMS FUSELAGE SID 2/B CAT OUT 9/16HHI Its easy trim off prolections left 1/e sq pieces Author uses razor blade Rough-sanding fine end flat Perma Grit tool Author finds handy Jig made squarely cutting dihedral wing panels also handy cutting downthrust The finished foam authors right hand what will become left hand Authors SFC fuselage simply angled correct degree process fully described April 1982 MA ideal lightweight strong applications airports servicing private aircraft may have can order aircraft supply houses Aircraft-grade dope much thicker available hobby shops will require thinning model use Lanzo airfoils recently received ac companying airfoils Chet Lanzo Chet has recieved requests airfoils several interested parties has generously offered use modeling public drawings coordi nates allow reproduced chord size taken directly original ribs 1-larley Hoffman Harley Chet fly models together Both Lanzo Bomber Lanzo 1937 Nats RC Champ seen occasional meet modelers familiar Lanzo Record Breaker favorite 0-I designs Ive seen eight-footer scaled up 12 feet flown RC-assist Harley has built four versions Lanzo Bomber original eight-ft span plus 74 80 106 wingspans thanks Chet New goodies Ive advised avid Old-Timer enthusiast Woody Bartelt long last producing die cast aluminum timer housings Arden 099 199 en gines Now chance get Arden back service Contact Woody Micro Model Engineering 5600 Portage Road Suite 112 Kalamazoo MI 49002 Ive also received word new pub lication England SAM 35 Yearbook Vol available Lord David Baker 22 Ellington Rd Muswell Hill London N 10 England Seven bucks will bring door postpaid Clarence Haught 3226 Hone vsackle Dr Cocur dAlene ID 83814 SFC Alpha-One/St Jean Continued paqe 64 stab hook place Bend 3-in-long piece A2-in piano wire U shape epoxy rudder-stabilizer junction protrude out rear /2 Cut stabilizer platform either / hard /32 lightweight balsa grain running spanwise should 11/4 wide 5/ long provide mount /6 x a stab-stop block pieces may quickly joined cyanoacrylate glue CyA shaped suit sanded epoxy stab platform fuselage time unless fuselage filmed Perform trial balance model fuselage tail wing engine tem porarily assembled Should plane nose-heavy move engine aft until CG center gravity balance point about /x forward wings TE Carefully saw off excess forward fuse lage necessary point indicated reproducing 5-degree downthrust anglewith no sidethrust Cut out /4 plywood firewall fit front fuselage epoxy place Block-sand ordinary sandpaper feather foam being careful hold block slight angle paper foam will sanded Should firewall little undersize places add epoxy make level foam Nudope third layer silkspan fuselage overlaps firewall run ning aft cabin starts Put fourth layer about /2-in wide just around firewall help secure Put extra coat Nudope entire fuselage once dry trimmed sanded lightly Add coloring desired simulate cabin other trim label name address phone number case model becomes lost done completely dry film fuselage except landing gear stab plat form located front firewall Epoxy stab platform place adding 3-in-long U-shaped piece /32-in piano wire stab bottom fuse lage snuffer tube dethermalizer DI fuse Bend landing gear /16-in piano wire cut out its /16 plywood mounting plate fit fuselage drill /6-in holes ap propriate sew gear plate large needle carpet thread desired have gear forward shown mount backwards Epoxy Continued page 152 RUBBER STRIP FAI RUBBER Made USA SIZES 1/4 3/16 1/82/32 1/16 1mm thick 042 BOXED 16 ounces rubber per box PRICE$1250 per box ppdin USA California Residents Add 6% Sales Tax KSB TIMERS FUEL SHUTOFF 3OSEC $1195 6 MIN DT $1195 SEND 5OFOR 1982/83 CATALOG Model I-POBOX3957TORFlANcEcAgo51o OFF tMtt SMASH SUCCESS TOLEDO! Thousands Already SOLD! 242 PAGES KITS/RADIOS ENGINES/ACCESSORIES TOOLS/SUPPLIES BOOKS/EQUIPMENT Major minor US Manufacturers represented entire product line Technical Descriptions & Prices Photos & Illustrations & Buy Hundreds Scratch Plans Model Aviation RCM & Others An Invaluable Source Book Products Beginner Expert See July 83 Model Aviation Product Review Guide Dealer Inquiries Welcome See Local Dealer Order Direct NAME ADDRESS Send check money order consumers Guide consumers Guide P0 Box 376 Great Falls VA 22066 Send S6B0llncludes osta alhandlina canadian Orders sendInc udes postjhandl Overseas orders sand $786 Includes post/hand MA AUgUSt 1983 151 First Guide Devoted Exclusively R/C Aircraft PRODUCTS FOR THE DISCERNING MODELER Complete Line Exhaust Systems * Tuned Pipes * Muffled Tuned Pioes * Headers uri Mufflers * Expansion Mufflers Helicopter Ball Mufflers * Specialized Exhaust Systems Unsurpassed Workmanship & PerformanCe Nick Zirolis F4U CORSAIR 2 Cu size Engines Fberglass Fuselage & Cowling s aca able roe des go GIANT RIC SCALE PLAN DESIGNS AT 6 TEXAN24 I101,Span$2700ppUSA FOEKOR DR-i27 163Teipa$2500ppUSA F8F REARCAT2w 186Span$2700ppUSA CURTISS p421/ 184Span$2700ppUSA P4U CORSAIR2/ 193Span$2700ppUSA Fiberglass Cow ogs & Cairopes available Send otamp deta 00 brocoores os oar Goer Scale Accessories lOr plans seer Postpaid wtbie tOe UbAl thread contact points mount gear bottom fuselage Add two /g-jn dowel hooks mounting wing twist I/gm drill sharp wire fuselage make holes dowel Nudope landing gear plate stab plat form wing hooks add color seal pores Put extra coat firewall too needed two three coats total fuselage again dry sanded lightly spread thin coat epoxy onto exposed non-filmed surfaces film used brush spray entire fuselage varnish clear Formula U finish coat Mark front stab platform slot Make I/jr wide /4 long accept front stab hook its roles front stabilizer key DI angle limit Adjust length slot necessary rotating tail will pop up about 45-deg angle dethermalize model Cut slot X-Acto similar knife Once through balsa epoxy foam can gouged out clear hook dull tool Mount engine small wood screws sheet-metal screws long enough go through l/4in firewall blindmounting nuts have used instead /o-in firewall adequate No 2 screws 5/o-in /2-in length will fine Should ever strip replace No 4 screw same length Solder wheels landing gear suggest following procedure Locate small #2 brass washers inside Punch small hole thin piece card board single-edge razor blade matchbook cover etc slide onto axle wheel will go should have tight fit Solder washer inside axle working inside cardboard help hold washer prevent solder resin flux running onto axle wheel Once cool enough handle remove card board put wheel remount card board another piece first has come too loose its prior use add another brass washer After soldering outside washer cut tear out cardboard has also provided small amount end play prevent binding Lubricate 3-in-I Oil wheel does turn freely plan always keep engine runs around 15 sec less Icc syringe will adequate fuel tank 2 3cc sy ringe will provide engine runs up 40 seconds morefor long flights En gine runs can also made short measur ing fuel larger tank stock Babe Bee tank another calibrated syringe just tank filling using larger tank cut off 2/2cc mark will hold 2cc stopper added wish able visually check fuel level before launching mount fuel syringe externallyeither piece balsa sanded concave partially embed ding fuselage side such exposed tank found displeasing eye drill hole down through top fuselage center line epoxy syringe hole Cut 2/r-3cc syr inge flush top bottom protrudes just enough get fuel line event tilt top tank forward about 15-20 degrees compensate nose-high attitude under power rubber syringe piston needs some work make breathing stopper Drill punch small hole through hole epoxy thinnest piece tubing can find tubing will allow tank take air fuel level drops Cut tubing long enough provide exter nal handle epoxying tubing stopper put washer just little larger syringe top can grasped pulling out stopper Keep epoxy outside using Cox reed-valve engine other plastic CL model will necessary drill hole tank order get fuel line bottom syringe carburetor just use Cox tank instead syringe controlling amount fuel two cubic centi meters per fill calibrated syringe Should done may wise dis assemble tank engine ensure internal fuel line arranged pick up fuel bottom tank side Pre-flight rigging Check wing en sure still has left-turn twist tended As long eye can discern some twist sighting along bottom probably OK warp some electric heater Mount tail fuselage check approximate 45-degree DT angle shouldnt bind would hold tail down neither should significant side-to-side sloppiness would allow rudder setting vary Some slop piness may removed adding epoxy either hook sides slot both front rear tail firmly tied down rubberbands epoxy two small wooden blocks /e X /ig X stab key rear stab platform has cured again check see stab free go DT position just before gluing two keys adjust tail line-of-sight through rudder goes through wingmount platform about /3 fuselage width point right side will provide small amount left rudder needed partially overcome strong natural tendency model go right under power left turn glide imparted shimming up left side stab plat form small amountup %2 depend ing upon model just make sure some stab tilt dont have look too hard see Check finished model see balance point CG about 1 ard 152 Model Aviation Power Soar New Heights IT-SO Electric Motor 01 Cu equivelent gas engine displacement Send self-addressed stamped envelope catalog ap plication notes Leisure ii DeerspringllrvinelCA 92714 L -COUPON R ORDERED FROM TOWER HOBBIES FIND OUT WHAT YOUVE BEEN MISSING Tower Hobbies best place shop RC modeling needs customers enjoy best TOWER IALordering fast service giant product selection personalized service low discount prices Toll Free Inventory back up regular free issues Tower Talk value-packed private label products available Tower plus much much Give us try today find out what youve missing receive sample what youve missing CALL TOWER HOBBIES TOLL FREE OR MAIL coupon today FREE copy Tower Talk 32 40 page publication gives up-to-date information new products well hundreds low low priced products shown ads really want save money cant afford Tower Talk Please note reg ular Tower customers already receive Tower Talks automatically Mail Tower Hobbies Dept AMA PO Box 778 Champaign IL 61820 ____________________Name _______________________ ITOAIER HOBBIESAddress_______________________________________ POOoIOCO,o90r no6182039 30 ITOLIFREE Con ,oIUSA V go 00605 Al0a & 0o. 000 63L000000cityStateZip -COUPON trailing edge wing Plus minus /4 probably close enough now outside tolerance add some weight whichever end model needed Modeling clay and/or lead good Just dont put clay fingers fuel will getting tail-heavy models engine may shimmed forward another piece plywood similar firewall Once cut size epoxy original firewall Use propeller 6-in diameter 3-in pitch called 6-3 model shops neighbors will put up noise test-run engine home few times developing procedures can control engine runs 5-10 sec after starting adjusting engine Should engine run erratically due vibration causing fuel foam add little hard plastic mesh dish scrubber bottom tank Flying Test-gliding model best done over some long grass available mistakes dont cost much cushioning effect offers Start running against slight breeze dont fly windy days allowing model lift out hand return exercise will tell what approximate gliding speed model whether may have strong tendency stall dive Should stall obvious shim up leading edge stabilizer side front ply wood hook model diving put shim under stab TE making sure does bind dethermalizing action ready make first real test glide Run same speed before launch model nose slightly below level about five degrees Any stall dive correct before noticeable left turn glide flat slightly left ready first power flight Fuel model 5- 10-sec engine run about 1 /2cc give time start adjust engine Put prop backwards flat front convex rear wont pull hard anticipate thermal activity best use DT fuse smolders like cigar will break tiny rubberband holding down tail once embers reach allowing tail pop up spoil glide Start engine Make first flight engine running slowly rich mixture Launch over grass wind horizontal attitude well will climb 10-20 degree angle wing almost level making wide right-hand turn engine quits may stall once twice should go flat glide left OK try second flight engine leaned out maximum rpm OK too third flight should have prop turned around forward normal way Should experience fol lowing problems make corrections indicatedthen try another flight increasing power I If model turns steeply left under power reduce left rudder offset check wing make sure left-turn twist excessive twist excessive remove part before attempt ing another flight Sometimes model will go slightly left lower power wide right high power 2 If turn too tight right bank-angle steep add leftrudder offset after making sure some left-turn wing twist generally change rudder settings slicing off part rear key block epoxy ing other Some would prefer cut tab rudder glue back desired offset angle 3 If model wants loop reduce CLEVELAND GIANT PLANS -- No 1 in oostor flying ogodelo 1/32 1/4 ooe Fo RI -inoinhiog ol. uk bnoooyinobee AnIin old Ii, -C C1 F/F RobbO, Sloso Sooo 1919 oboolf,o donigo oooIoblo Roi Coiloclo eo. yoo 00 oodol, oho folio, pinoolype polo dot holhoog ooinelf ooy long, bo neod $150 fon picoioI oololog Mol oil 0 foloinoIIy peneoled P01bhp hhlonlond pk Ill olon 60, foinoigo 75c {Add $100 fo oj ,oiii Nooe foe N doom, Edoo-dT Po0od---Aooljonn 00 fiodCLEVELAND MODEL & SUPPLY CO 103070 Delnoll Ao, Cinoolond 0110 44102- August 1983 153 TOWER HOES CESSNA 188 AGVGON MANY MORE NEW ITEMS INSIDE PAW DIESELS En g lands Finest 049 29 New low low prices Send $100 list Eric clutton 3816 DeSoto Ave Fort Myers Florida 22905 SHIPPING AND HANDLING sO Page CATALOGUE Up $800 add $150 $200 PP/lot Class $801 $2000 add $225 copy will sent $2001 $4500 add $300 free requested-$4501 $7000 add $350 order over $7000 add $400 HOBBY HORN CA Addresaees add 6% taxSahobby specialtiesna Send MO Visa/MC#Exp 11173 Moran Street [Al Check allow up 30 PO Boa 2212 daya check clearance Westminster Ca 02603 CODExact Charges 7101 193 0311 HdI Cash OnIyIAII UPSI 714 0911253 incidence raising front sta bilizer add weight rear model prevent diving glide Test-glide again confirm changes have ad versely affected glide may also necessary add downthrust 4 If model dives-in under power falls like arrow glide incidence must increased raising rear stabilizer same time add weight nose plane eliminate glide stall Should problem occur under power reducing amount downthrust may answer 5 power pattern OK glide circle too wide shim up left side stab some morethe same amount front back change inci dence setting Should ship appear spiraling-in during glide phase flight widen circle removing some shims Dont confuse however lack incidence described Prob lem 4 Although other patterns may work some modem models will safest stable flown right un der power left glide right left pattern Should experience some difficulty problem covered previous SEC article please feel free direct questions author address phone number given below effort will made help would like try SEC AlphaOne before getting equipped cut foam yourself will provide foam-only kits $18 plus $300 shipping way can prove yourself SEC way go before having make time investment required cut own foam Good luck Ron St Jean 3744 E Nye Lane Carson City NV 89701 tele phone 702 883-2400 Editor max obtain photocopies Ron St JeatIS Structureless Foam Com posites article April 1982 issue ]r $1 00check money order pleasefrom Model Aviation 1810 Samuel Morse Dr Resron VA 22090 CL Aerobatics/Paul Continued pate 65 cables outstanding still best handles Maybe E-Z Just did us favor going out business opened door adjustability performance using handle variables did lot testing several years ago because using six-in bellcranks big control horns now seems lot fliers par ticularly eastern part States have gone heavy-duty control systems East Coast fliers using larger bellcranks l/oindiameter steel rod flap elevator horns fiberglass pushrods cus tom handles etc have another suggestion experi menting handles E-Z Just grip axis straight up down Bob Hunt handle inclined about 10 degrees see diagram find inclinedgrip handle about 10-12 degrees much comfortable suited natural anatomy hand extended flying position comfortable Hunt handle designed like need plane corner little faster try short ening arms overhang will see sensitivity arms get shorter Id like especially thank Doug Stout Rich Siefert Big Jim Greenaway helped handle ideas suggestions technology Anyone wishes contact Windy can 9 Union Avenue Little Ferry New Jersey 07643 tel 201 440-0905 thanks him supplying information about handles certainly agree light handle flies better also like idea having adjustable think can keep handle 75 gm less will have workable solution thats about 2/2 oz appears little confusion availability plans engine work Tom Dixon can contact him Controline Sales Tom Dixon PO Box 27540 Contract Station #7 Atlanta GA 30327 has added following plans list El Diablo Red Reinhardt Baby Barnstormer Half-A Guillow kit Tom-Tom Warrior Veco kits Gob bleswantz Charlie Mackey Argus Steve Wooley own plans Oriental 40 similar 35-size scaled up 40-46 engine Tom recently said has filled several orders customworked Fox 35 Stunt engines see May 1983 column want good 35 summer contact him about various stages rework veteran engine infrwmation stunt PAMPA contaft Wynn Paul 1640 Maywick Dr Lex ington KY 40504 CL Navy Carrier/Perry Continued tjaoe 66 figuration produced option original Profile Carrier Special en gine longer crankshaft will produce better shaft seal provide room carb problem CS conversions short shaft left little room carburetor According literature port ing head configuration have opti mized running straight alcohol fuel may overcompressed high-nitro fuels major advantage new Fox its weight nine oz lightest throttled 36 available beats Supertigre ST 35 fraction ounce engine uses Mark X carb fits square intake boss new carb may fit old Fox CS well engine due out May should able get 154 Model Aviation Horn Span--750 564 Sq SENSOAR glider HOBBY HORN Easlusisel 808ev HORN Kit SENSOAR Glider kit high quality kit Machine sot sanded parts Select quabty balsa spruce Detailed plans ar1tten InstructIons Far THERMAL SLOPE 51 ELECTRIC POWER VALUE PRICED t 51600 OLD 1IlThR NflS bull Parttal 105 P & W Semi-Kilo Cambined full stripwssd plan Now md Wire Window etc Mat Nate may purchased just seoll kits plans-write call prices 1930 Buccaneer54SS1 1938 Cbpper MR t72-$30 1917 Datlaire Sptaer108581 1140 Ranger-fO- $27 1939 Mereury72-$50 1935 Miss Axerica04--SSO 1041 Playboy Jr-54929 1941 Playboy Sr80-948 1938 Power llouse84-943 1940 Sailplane-28- 974 1940 So tongSOSZf 1938 Trenton Terror-2T-432 1139 Zipper54948 1139 Korda Wakefield-44- 117 MIOtPAY MODEL CO SemI-kIlo Csm5lned a/strIp 1938 Plying Quaker84S49 1037 Quaker Plasb07130 1032 Long Cabin78S42 1037 Air Chiet6I-040 STRUCKS 1940 74 Span 135 Sq SEMI-KIT Plan IncI- $3300 new r HIDE Combo IFuII Kit $8300 SCALE PLANS nd ORAWINGS 5 50 HEINKEL HE 1000 62 60s $1000 AlTENTION ERS EPOXY GLASS COWLS FOR NOSEN PICA S/fl AIORGA9I BALSA USA PLATt CONCEPT FLEET HOSTETLER RCM TCRAFT SHEBER PIUS & /a SCALE SIJPER CUB FOEKER 0-7 BOEING PI2 P-2B F4B2 F4B4 SPARROW HAWK GEE BEE MOO Y MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELIAS STARDUSTER Va SCALE J3-BI BABY FLYBABY AIRAMPER PILOT JUWOPAAWW 135 SCAfE 1/4 SCALE DECA THALON PIPER PA-/B ft OTHERS WHEEL PANTS FOR CITABRIA STAROUSTERIL PIUS SKYBOLT LIBERTYSPORT CHRISTEN EAGLE P6E HAWI STEARMAN SnNSON SR-B MULLIGAN ft OTHERS BRAZED TREATEDW1REGEARS6CABANES LARGE SCALE PLANS AVAILABLE Send $100 latest list supply Modelers libergiass parts plansWrite call us T 8 D FIBERGLASS SPECIALTIES 30925 BIOCK GARDEN CfIY Ml 49135 PHONE 313 421-6358 BIG STANDS BIG AIRPLANES Now Can Get Stands Big 1/a 1/3 Scale Airplanes * Holds airplane eaay wing inatallation * Positions plane easy access radio * Disassembles easy transportation STANDARD SIZE12 width front fuse 8 width rear fuse sizes larger atandard aend width dimensiolia custom built stands $1995 plus $300 postage ft handling Send check money order aspee PRODUCTIONS % Harlan Payne R#1 Ina IL 62846