Aeronca K

NO OCR TEXT NO OCR TEXT simple yellow black color scneme OT tne proorype gives moasi great VISIDIIITY say ana ii easiest dupiicate werent piiot figure wouid very difficuit indeed teii what see fuii-size version modei OS Gemini 120 twin proved wise choice K its 12-lb weight Power adequate normal climb maneuvers new OS 160 twin could also used its overall dimensions nearly identical 120 Flying Aeronca high altitude Reno Nats could have used extra power 160 Under ordinary flying circumstances 120 four-stroke either single twin cylinder sufficient Because Aeronca light weight flies quite slowly 120 engine no need special highenergy servos servos used Tech RC Titans 38 in-oz output torque has no problem control surface travel servo large ailerons assures full travel Mounting servos near wing root shortens extension cord Y-shaped exhaust pipe brass tubing sliver soldered tothe stub exhausts Gemini combination aircisanerand carburetor heateronthepipebecomesa muffleronthe modei piane much exquisite de taii niceiy compiimented scaisilke appearance four-stroke Gemini Twin passes upward behind cabin rear bulkhead over cabin roof Y connection cord becomes part airplane structure Cabin interior quite compiete controi whesis push-pu ii throttie strument panei visibie hinges doorwere fordoli houses butworkweii 24 Model Aviation nougul viewi ,1rutattachmentto fuselage unuws wing-warp adjust ment setup rear strut func tional modei great heip trimming Aileron servos iccated wing roots hooked receiver Y connection An aiuminum access panei can removed service servo Left The 05 GeminI 120 engIne appears have made tar Aeronca K crankcase has shrouded tapered aluminum tube simulate Aeronca engines shape Right halt-dozen tins beneath Gemini turther disguise Aeronca E-113C Left The seat belt ana meatner-covered seat Vi5iDl through open door inside surtace tabric covered Note door latch Right sefvos tor rudder elevator completely hidden seat can reached through large cabin door Left Rib stitching rib tapes aileron horn strut brackets Inspection covers shown bottom view ot right wing Right small tabric tiliet top ot landing gear talring true scale natural shape taken covering buried beneath covering fabric Elevator rudder servos located beneath cabin seat receiver battery throttle servo mounted just behind engine short length flexible pushrod carburetor An extension cord servo passes beneath cabin floor receiver manner RC equipment hidden view cockpit can completely finished controls instru ment panel seat basic fuselage structure fullsize model triangular truss faked out formers stringers triangular cross section first used Aeronca C series K subsequent Chief Champion air planes Nose substructure cabin sides model plywood strength Construction The following steps recommended proper assembly se quence Begin fuselage structure August 1985 25 Left Working shock absorbers within landing gear legs operating scissors functional realistic details text alec describes aftemate methods wish invest time construct Right Taii surfaces braced functionai streamilned wires fastened surfaces miniature hexagonai screws License number authors fuli-size K Left The windshield fastened prototype aiumlnum strips rows 0-80 00-90 machine wood screws Dowei intemai fuseisge bracing represents steel tubing cabin Right Wings heid aiignment music wire pins shown extending tube guides Aiieron servo connector extension cord hidden cabin roof Note aluminum frames around windshield side window edges Au istypicai detaiiing shouid strive contest worknot necemryto just have fun Left The acrylic Plexiglas skylight fastened prototypical manner aluminum framework Aluminum strips cover fuse lage-to-wing joint Right dummy control horn adds realism Note view aileron ribs aligned wing ribs building basic A-frame lower longerons crosspieces differs usual method building-up joined sides necessary because fuselage cross section changes drastically front rear triangular upper structure added vertically above A-frame formers cabin floor added Plywood cabin sides cut out framing balsa added external surfaces two birch dowels drilled axially brass tube inserts will mount wings Cabin sides assembled tubes through sides alignment sub-assembly set loosely A-frame blocked certain angular equality direc tions Use thin cyanoacrylate CyA ce 26 Model Aviation N % N 3/16 BALSA N 1/16 DIA NUSIC WIRE AILERON PUSHROD /8 BALSA FILLER NOVER SPARS TOP B BOTTOM 1/4 SQUARE SPRUCE SPARS BOB WISCHER AERONCR K - 5/32 X 3/8 SPRUCE TRAILING EDGE 3/16 X 1/4 BALSA STRINGERS 1/4 BALSA CABIN ROOF 1/8 BALSA /4 SQUARE BALSA 3/32 PLYWOOD 3/32 BALSA /16 BALSA EDGE OVERLAY & 1/4 SQ BALSA 3/32 BALSA 1/4 SQ SPRUCE SPARS- BEVELED /2 SQ BALSA- BEVELED LEADING EDGE /4 SQ BALSA 3/16 X 1/4 BALSA WITH SLOTTED ENDS ALL FORMERS 1/8 BALSA FRONT COWL 010 ALUMINUM 120 TWIN ENGINE FIBERGLASS NOSE-BOWL ED OVER FOAM PLUG BOTTOM COVER 9 010 ALUMINUM 4130 STEEL TUBE 437 OD 028 WALL 3/8 BALSA CABIN REAR BULKHEAD 1/B BALSA 1/8 BALSA 1/4 SQ BALSA STRUT ATTACHMENT BRACKET 031 ALUMINUM REAR STRUT- MAPLE WING STRUT AND LANDINGFRONT STRUTMAPLE GEAR BRACKETS RIB I/B BALSA3/16 DOWEL AlL CENTER HINGE SUPPORT LANDING GEAR FAIRING 010 ALUMINUM 4 OR 45 SMOOTH TREAD TIRES 015 BRASS CLAMP ment freeze joints dowel ends bottom cabin sides meet A-frame Before removing supporting blocks add balsa cabin roof rear triangular bracing join sides A-frame structure fuselage has now become rigid assembly can handled addi tion A-in balsa stiffeners top area along lower longerons Air foil-shaped blocks YB-in balsa now cemented together form angle shown fuselage top view assembled cabin sides stringers tail post plywood stabilizer keel added next followed fin ribs leading edge plywood nose sub-structure assembled unit cemented inside edges fuselage front epoxy basswood gusset strips sides will act alignment fixture cementing balsa floor nose section next sequence followed formers plywood cowlings rear landing gear support Landing gear order complete fuselage steel tube landing gear needed next decision needs made point regarding shock-absorb ing feature landing gear simpli fied non-shock gear shown anyone prefers evade extra labor tubing used aircraft quality 4130 chrome-molybdenum steel tub ing wall thickness 035 would suitable avoid necessity elabo rate fixturing brazed joints tube should notched rather cut through completely tube bent held together remaining metal proper angle gap closed nearly Braze bronze rod will fill gaps joint used Tuf-Grind AC-4 wheel Dremel grinder cut notch could also done hacksaw %2-in music wire brace also brazed main gear paying particular attention difference level two parts shown drawing sheet 1 landing gear can now set its grooved supports metal clamps fabricated secure place Balsa fair ing support blocks tack-cemented gear legs gussets added anchor blocks nose sub-structure Once fairing blocks located final position landing gear can removed breaking tack-cemented joints landing gear can now complet ed Lower legs also made aircraft steel turned down slide fit inside upper legs spring wound 055 music wire standard size hobby shops carry K&S line products some areas local Ace Hardware Stores also have wide selec tion ready-made springs pair can chosen will support 12-lb airplane spring should have load about 6 lb deflection R BALSA CABIN ROOF H5j__ LB BALSA N INOTCH FOB AlL SERVO LEAD WIRE 3HR BALSA / SS2 PLYWOOS / F-S lSt PLYWOOD S ROLE SCREWORIVER ACCESS ________________TO TITAN THROTTLE SERVO o0Z BALSACBLISS NOES F-I FOELSTDRPHOLEtifi NOR~FFzz POINTII ROTSFS INO 0112 BALSA ____ OIOD PLO ENGINE MDSRHTF-IAS/ LAMINATE TIWEE LAYERSItO SD BALSA 112 50 BALSA FINE NEROL-17/I SCREEN1 BIRCH SUWELICH BRACELIC AERONCA COMSNATIDNFIB RALASS NODE BOWL AIB CLEANER ABS FOBBES OVER FOAM P500 AM HEATER BAFFLER ON NOVEL S 540 ALUMINUM CLAMP 114 BALSA \\ \\\\\ VOD ALUMMAM BINS STROT ABS LANSINO I BOTTOM COVER OIO ALUMISIDA 0 OS SMOOTH TREAS TIRES\\\\\\\ Brass plugs low-temperaturesoldered spring ends No brazing heat will alter music wire no longer spring machine screw top secures spring lower leg upper leg brass blocks scissors subject abuse hard landings should brazed position alternate landing gear consists 4130 tubing longer legs either type short tube brazed lower end accept %2-in music wire stub axle reasoned hard landing could bend wire should easily replaceable soft-soldered tube An simple landing gear could formed single piece bent Y16-in dia rod However some hazard damage landing gear fairings due deflection type gear hard landing tie rod 28 Model Aviation Full-Size Plans Available. See Page 156 001 ALUMINUM MACRET /MUSE WIRE DIAMETERS FOR STAB BRACE WWEO Ii PER/ STREAMLINES STEEL STABILIZER BRACE WIRES 094 WIDE DAT TRICK MULTIPLE SOLDERED MUSIC WIRESSLOTTO BREMEL ABRASIVE DISC LOWERA BRASS CLEVIS TABILIZER Vzzz/BRUCE WRE SECTORS 0 TIMES SIZE SOLDER SANDED /SYDA 010 MUSIC WIREBBS BARNISRED WITS STEEL WOOL TO SIMULATE STABILIZER ROASTSPOLISHED STAINLESS STEEL IItOD SLURINAM TAME CRIMPED TISOTLY 7 -ItS PLOWOOS RUDDER BOSS 018 CIA MAIMED STEEL CABLE VSO 15 MUSS TAME ASS LOSS 3V5Z LU BRASS TARE STABILIZER KEEL SVSZ PLTWOOO 015 BALSA EDUE OVERLAT __________________BINDOBIELD PATTERN 051 PLESISLAS / — . 7________ F- 8/ APPEB COWLIiI lUST PLTWOODI A[AS OS BALSA FOVIR B IUO BULSAITO BALSAK BSTRINGERS A7 ~iIIl iIII ALSA 4SUAABE BALSAvsZ PLTRSOD__rr r ITO SOI _____________________BALSASTABILIZER44SILVER SOLDER MACE WIRE to4BALSABASSETjliOlA_____ ATELASS 0DM TORE 001 BRASS UTLII USA BASIC TED 0flHY MERE BLYUSC ALAMOSUM BRACKETS TB 05 BRASS TUBE110 BRASS 001 BRASS PLATES/TUBE 450 STEEL TAMETURNS TAL WBEEL TILLER BAR 500 SD OS BALLAND FOLD SAWN OTiB S ITO TAPERED STRISSER US EDETEBIANESILVER SOLDER ASSEMBLYO4SALAMINAB B RE LUSSIRS SEAR BRACEBRAZES JOINT lUBE BRONZE RODITAIL WHEEL FORK STO U 110 BALSA RIBS I 6 BOOSSBO 050 SCREW LOWER PHINS PLUSSPRIIS CR8 MASS ASSMERE APPROD/ OOH US/ // SAL SE B TA DIA STEELHISS STEEL TABE-MUSIC WIRES SALACRED AST OS SAR WALL STEEL LAS BRAZE TO STRUT BATBOC LSAAIKTERB TOO BUSRECIIMED TO HUB IBRARS ELDVBALTERNATE LANDINS SEARBLACKSNO H-AC ARE WITHOUT SABER STRATS RUSS MUSIC MERE-LOW TEMP RSLDER 0IA4SU II .iIIiIiIiiI IN LEVELSSO PLYWOOD - ~E-LOWERUPPER SO 301 IISI DBILL..-IIAHO LORNI DRILL SEISSSBS-OSJ ALAUBBJN AEREWA AERONCA K BODEL AND DRAWIBOS BT BOB WISEHER BINUSPAS 5 FEET BEISRT lIT LBS WIRU LOADINS 203 OZ PER SOFT SCALE ITO S"I FT hown across gear legs drawings s mostly cosmetic rigid tubing rear would become functional lecessity smaller diameter rod-type Lrrangement tube-type landing gear allows full-scale construction closely nglne Mount Gemini furnished vith aluminum radial mount cant e used Aeronca because its xcessive overall dimensions However didnRt wish subject engine mount ing lugs undue loads uneven tight ening mounting bolts wood surface chose mount engine 3A6-in aluminum plate worth addition prevent breaking lug horribly expensive over $60 crankcase rear housing Handle Gemini carefully though family jewels four-spar wings simple basic construction Spars spruce hard balsa acceptable substitute Front spars beveled match slope leading edge balsa sheeting table saw can used beveling angles 80 lower spar 170 upper Rear spars set beneath surface covering fabric will touch consequence small blocks fitted gaps above August 1985 29 NOTE ALISIRERT FUR I/B BA 0 SALESI NEGATIVE INCIMENCE Left Balsa farmers fill out shape Cyanoacrylate cement speedsup building time phases Right Plywood cabin sides have door opening right side window left plywood template used cutting wing ribs also shown Left Plywood cabin sides after theyve balsa framework cemented external surfaces Right cabin sides dowel wing supports have erected over fuselage framework cabin floor roof diagonal bracing have also added dowels represent tubing structure prototype will drilled axially brass inserts will mount wing spars rib position angled tail root ribs should exactly match angle airfoil-shaped blocks cabin sides certain exact alignment brass tubes wing fuselage following procedure will helpful step completed before adding balsa sheeting wing bottom surface fuselage blocked up invert ed position wings plugged music wire alignment pins have proper dihedral angle ing held firmly position tapered balsa blocks epoxied above below brass tubes fill gaps between tube front spars Tapered blocks also used rear spars epoxied spar front surfaces plywood gusset plates balsa blocks between rear spars added wing bottom surface will left un covered between first two ribs between spars servo access cover area made 010 aluminum held place small wood screws few places model deviates true-scale appearance Aeronca K has friese-type ailerons hinges located below aileron sur face aileron nose leading edge dips below lower wing surface alleron raised banking turn 30 Model Aviation Left Fuselage construction begun basic A-frame 1/4 sq balsa lower longerons crosapieces Above Trlanguiar uprights dlagonai bracing foliow pattern fuli-size Aeronca K fuselage form basic skeleton model Full-Size Plans Available. See Page 156 / EASERAS ELERCETIS ASS ES SEASliTin ECUE EAR ACELjLJLiIS SEAR EULSCSAS ______ EPTF-6 F-7 RUTS CIA MUSIC WIRE EET TIE- ICTA ALTIECCO UTTER COCELSASS PARASItERCAA CTR CABIN ElSE I, I ICAA ICE EALTA STRIESER _Ir IiIi\ AL PASSERS1C5 BARASCAC SESECT ASEAT U SCIE CIA ElECT COSEL/ SETACI TETUA SECTAERONCA K S EAR ISECTETRESETS principle portion dips down intended induce drag counteracts adverse yaw tendency airplane yaw direction opposite turn some doubt about effective ness friese ailerons model view shows drastic shape change occurs frontto rearof fuselage cabin sides paraiiei being some what narrower bottom top Aeronca supposedly true-scale air craft therefore necessary models aileron hihges actually metal-on-wood bearing surface concerned about unlimited life wear hinges would considered un Cabin roof rear triangie iower iongerons fiiied-in sheet baisa wing root baisa blocks shaped airfoli cemented sides August 1985 31 Li suitable have used wood surface bearings past though have found wear occurs metal part wood hinge will outlast model Wing struts model made scrap soft maple purchased pennies local furniture factory really easy carve streamlined shape excess material removed successive cuts table saw struts could made bass spruce very hard balsa strut ends made round brass rod holes drilled tapped brass machine screw screw silver-soldered brass rod screw head removed rod drilled axially fastening screw threaded end epoxy-cemented deep hole drilled strut end very permanent joint inner end rear strut made adjustable two pieces head removed No 10 brass screw hole bored down its center tapped No 6-32 thread epoxied strut end brass clevis has No 6-32 thread locked nut Turning clevis pro vides adjustment twist wing panel exactly same manner prototype adjustment can bless ing model tends turn flight neutral rudder ailerons Tail surfaces Aeronca thin flat airfoil shape Leading trailing edges smaller diameter tub ing hinge line model sand balsa edge material simulate smaller diameter especially along tralling edge prototype connec tion stabilizer fuselage means telescoping tubes exter nal wire bracing principal support models stabilizer halves support ed similar manner tubes music wire pins inner end func tional streamlined steel wires carry load outer extremities stabilizer tubes must exactly match plywood stabilizer keel fuselage Tubes keel length shown sheet 1 drawings tube ends will just touch stretched fabric fuselage sides must exactly parallel viewed vertically horizontally wing mounting Parallelism can checked dimensionally inserting 1-ft lengths %2-in music wire keel tubes before freezing position CyA stabilizer halves assembled short music wire pins blocked position tubes epoxy-cemented sequence assures alignment stabilizer can freely inserted over pins final assembly binding model brace wires actually hold stabilizer halves tightly against fuselage As shown drawing sheet 1 /1/I/B BALSA f/Il H B BALSA IEOBE SOEBYAT TOP ABA BOTTOM V -_ 11 I/B BALSA11BETWEEN 2RBS -ffi ~~~1~~~ I/B S S/B BALSA Ii I/IA PLYROOS I/B B I/A BALSA AILEBOB BELCBABB 0/02 PLY 3/IA DEWY F/ 3/32 MUSIC WIRE Z DIHEDRAL lB2 3/320 BRASS TUBE EPOXY B ALIABMENT WITH 804 __STABILIZER KEEL /4 55 BALSA ELEVATOR BORN 0/SO BALSA 0/IB 01/4 BALSA BALSAWITH S LOTTEDI EBBS/4 B B/IN BALSA I/HO 3/B BARS BALSA I/IA BALSA EDGE OVEBLAB brace wires made music wire two different diameters soldered together board prevent warping sanded burnished steel wool bring polish appear ance stainless steel Solder least 50% tin content will provide best finish Ends central music wire 0/SO BALSA soldered brass devises pinned brackets mount tail surfaces melting solder devises wires can adjusted length make quite tight after assembly model Clamp heat sink polished portion wire avoid melting 32 Model Aviation Full-Size Plans Available. See Page 156 T I,I..~~ II I~4...----i4- zzzz. [v32][b-1-10-1-10]] VB 00 BRASS TUBE ROSB 0 3/B SCREW DOUBLE SIZE VIEW OF AILERON HINGE I. 5/32 03/B SPRUCE TRAILING EDGE AILERON HINGE RIB HINGE RIB I/H OGUAFA SPRUCEI/B BALSA FILLER SPARSOVER SPURS TOP BOTTOB I/B PLYWOOD I/H BASSWOOD I/IS SIA MUOC WIRETECH B/C TITAN AILERON P000000I/ISPLYWOODSEHOS SHOWN I/H5G UPRUCESAG BALSAI/H PLYSROOS SPARS BE VS LEO IS 0 o -H-----$----------L----I-- --m-----------.., AILE BRA BELCBANS I/IS R/CWOOU MB GA DOWEL I/IS GA BASE WISE YHBAISAE IS PLYWOOS IS PLYWOOW AL HORN S/H BALSA SECT BALSA -I/H BALSA 1/2 55 BALSA BEVELED SECT C NI/B PLOHOOD AUSSET 010 ALUMINUM COUCH BUTTON IS OPES BETWEEN FIHST TWO RIBS 5/B 55 BASSWOOD I/B PLYWOOD 5/IS SO BASSWOOD 1W PLYWOOD ISI2345 INSIDE/SECD I/B 00 ALUM5/52DIAMETER BBASS TUBE EPOST BETWEEN I/H BALSA WEDGE TUBEBLOCAS IN ALIGNMENT WITH MUSIC WIBE PINS SUOWN ON SHEET 2 SO ______STRUT ATTACHMENT BRACKETMAINTAIN DIHEDRAL DIMENSION 031 ALUMINUMWHILE EPOXY HARDENS S/B SIAAILERON HISS- I/B BALSA 5/IS ALOMBIUM STREAMLINEDTUBE N RIB -I/B BALSACUT ID BINS FOR AILERON 1/2 DIA 3/IS SIAS/IS DIA 5/52 ALUM TUBE RACE ET3/DO BALSA ROOT RIB I/H HARD BALSA I/H DIA 015 BBASS CLAMPND SOLIDRO DBILLNO HO LONG DRILL HINGE RIB- I/IS PLYWOUDAILERON IMISE RIB- I/IS PLOWOUS 3/32 BALSAFRONT STRUT ENDS- I/H DIA BRAGS -SILVER SOLDER TO NOR-3D THREADED ROD - EPOSY ISTS STRUT //AERONCA K 052 ALOB PLATEMV BAR WISCRER EPSOT PLATE IN SLOT CLEVIS WITH NO H-SD THBEAS ROD-BRASS BRASS TUBE-TAP 5-52 EPOUTSHEETS CoverIng material Aeronca Sig Koverall producing very scalelike finish particularly well-suited making fabric fillets small dor sal fin front edge landing gear fairings wood surfaces will come contact covering material given three coats heavy dope fuselage sides toP fin covered two pieces Koverall side joined top stringer bottom separate piece though would have small challenge have included side pieces small heat sealing tool set medium heat used shrink Koverall smooth cover fillets formed special effort Sig recommends nitrate clear dope However brushed three coats non-tautening butyrate stead5 can see no ill effects Koverall already tight dope applied Simulated rib stitching made Wilhold R/C-56 glue applied August 1985 33 -I/H 0G SPRUCE SPARS- BESELED -IIS PLYWOOD PAIRLEASS FOR AILERON PUNOROUS Left Stringers added sides top framework fitted notches tail post added rear diagonal bracing provides rigidity point fuseiage weighed 14 oz Right plywood stabilizer keel cemented iiace brass tubes stab support Ply balsa gussets strengthen tail post very light model slightly nose-heavy 1 Left m plywood nose sub-structure engine mount ianding gear gruuved supports place Use epoxy cement area maximum strength Right Bottom view cover removed show landing gear mounting Aluminum clamps se cure gear grooves shockabsorbing landing gear helps keep model bouncing being damaged rough landings throttle servo wire routed beneath cabin floor keep interior iooking neat Au photos author over wing tail surface ribs wear points fabric such ribs stringers leading edges trailing edges longerons covered pinked tape material used selfadhesive 3M Hair Setting Tape purchased drug store Its serrations bit too large strictly scale size static judging class competition done distance finer serra tions would visible tape given coat clear dope additional coat clear butyrate mixed aluminum powder sprayed before two coats yellow butyrate standard color factory Loening Yellow color commonly found today used Randolphs Lockha yen Yellow convenient substitute Loening Yellow tinge green slightly different Lockhaven enhance appearance inside cabin door also covered painted fiberglass nose-bowl formed over plug blue insulation styrene foam sanded shape slightly undersize coated vinyl spackling com pound protect foam polyester resin followed Several layers 6-oz fiberglass cloth impregnated poly ester finishing resin laid over plug final layer lighter cloth finer weave used screwdriver digging tool remove foam plug Coarse sandpaper removed last bits foam smoothed interior Remov ing foam simple task matter minutes Dont believe stories about dissolving foam gasoline dope thinner wastes expensive thinner hazardous leaves sticky mess cleaned out bowl afterward Detailing Door hinges brass butt-type came hobby shop carried line doll house supplies A2-scale nearly correct size quarter-scale airplane same shop also tiny piano hinges elevator trim tab Aeronca acrylic Plexiglas windshield afld Continued page 119 34 Model Aviation Upper portion tubular ianding gear has brazed bronze brazing rod angled joints also points rear brace meets tubing windshield form aluminum litho plate stapled biock Note change shape round semi-rectangular rounded corners Hints obtaining kind shape contained text dJ& ROBERTS f last tip own transmit ter switches dual rate mixers ser vo reversing etc comes Guy Wire newsletter Daytona Beach RC Association editor Bill Brad ford month club president Steve Searle Jr has Message Left Seat first page April 1985 issue message concerns safety included preflight check list Item No 3 list DOUBLE CHECK bells whistles transmitter before flying Youd sur prised reports Ive seen crashes caused inadvertent switching bells whistles switches Dont humans makes error month Have safe John Preston 12235 Tilden wood Dr Rockville MD 20852 Aeronca K/Wischer Continued page 34 skylight window drape-formed over aluminum sheet forms made printers litho plate plastic laid across form balanced along its centerline placed pre-heated oven 250 0F Rt 2 Box 2547 La Grande OR 97850 503- 963-0596 VISA Welcome VERY FINEST QUALITY MATERIALS SUPERIOR MACHINE FINISHED PARTS SUPER CLEAN FLYING AIRPLANES FAST BUILDING ENJOYABLE ASSEMBLY forming takes minute two Remove form oven wait another minute cooling plas tic retains shape prefer cut plastic its final shape after forming Use pattern shown drawing determine beforehand whether will fit fuselage Make corrections neces sary make new pattern before cut ting precious windshield blank doubt about exact bent shape windshield form use pattern cut dummy windshield aluminum sheet Bend dummy fit fuselage use shape form Thats extra step may save time end Flying Aeronca few air planes have built slightly noseheavy spite its long tall short nose moments No ballast has add ed flies very well its present balance condition shown drawing will perform tail-spin very well see no reason add tail weight model reluctant enter spin some extra weight would have required tail spin few aerobatic maneuvers K capable performing some concern anyone thinking com petition full-size plane no ballof-fire could perform simple loop split-S wing-over spin Elevator travel measured FIRECAT SPAN 577 ENGINE 35 50 CLASSY LOW WING BEAUTY FLIES IN GROOVE EASY TO TRIM VERY AEROBATIC Also Available TOPCAT Span 577$5950 BI-CAT Span 478750 LASERCAT Span 547450 Dealer Inquiries Invited model 1% up 1% down extra down-motion result elevator horn being swept forward clearance reasons isnt required flight Down-elevator rather useless control Scale models aileron travel 1 in direction could increased bit possibly 1 Rud der travel maximum allowable 3 in direction dimension rudder comes very close touching elevator Wheels Aeronca quite far ward effect landings tendency bounce three-pointer attempted under ideal conditions cer tain bounce-free landing bring bit fast land main wheels also applied flying full-size ship although expected make landing three-pointer during train ing Takeoff requires very little rudder narrow landing gear crosswind takeoff landing can quite adven ture Its best lined up directly wind No model have ever built easier fly highly detailed three-view documen tation drawing Aeronca K NC 19345 license number available 44th-scale Paul Matts Historical Aviation Album Price $500 postpaid Drawing number 15-103-A competition document pur Continued page 122 GIANT TEST STAND recent development large 60 1 6 two cycle four cycle engines has created demand durable heavy duty engivetesting stand newtest stand cast aluminum will become softand oil soaked wood test stands often OCAST IN ALUMINUM FOR STRENGTH DURABILITY AND ENGINE HEAT DISSIPATION SWIDE MOUNTING BASE SUPPORT SADJUSTABLE ENGINE SUPPORT BASES WILL HOLD MOST ENGINES FROM 12 DOWN TO 1/2A S HEAVY DUTY LUG PRESSURE PADS STEEL ENGINE RESTRAINING PINS No 51617SMOUNTING SCREWS INCLUDED AT MOST HOBBY SHOPS OR ORDER DIRECT a aa Send 100 13 page illustrated catalog August1985 119 it- Ai Safety Preston Continued page 20 Schlueter Free Flight Models 3508 Poinsettia Ave Manhattan Beach Ca 90266 Dealer Inquiries Invited 0 S PACIEiC ACE BLACK BULLET PARTIAL KITS plans &printed wood PACIFIC ACE BLACK BULLET 2O$3253O$47O 40T665ADD S2OO SHIPPVJGPOREACHITO3 KIT ORDERCA RES ADO 6I TAX poses drawing should changed show less aileron rib As indicated construction drawing aileron ribs arent line wing ribs small change possibly Paul Matt can convinced correct original art work sketches Aeronca made modeling purposes 1941 contain accurate measurements wing aileron rib spacing positions Pauls address Historical Aviation Album PO Box 33 Temple City CA 91780 RC Scale/Wischers Continued page 43 planes weight seven pounds past Roger Brennom has won first places Stand-off Scale Nats Toledo Northrop P-61 Black Widows has built series MFG OF NI-STARTER $2995 Charger PLEASE SPECIFY WHICH CHARGER WHEN ORDERING newest P-61 entered Precision class because increase exterior detail new model electricallyoperated retracting landing gear weight 25 lbs 05 90 engines eight-foot-span night fighter fits Giant Scale class Hal Parentis new Savoia-Marchetti SM 79 trimotor Italian bomber intend ed FAI competition conten tion against such airplanes Saugers Stinson Skip Masts Hercules Savoia uses three 05 25 engines weighs 125 lbs Finish combination FabriKote silk K&B epoxy Hals ability old-time Pattern flier secret weapon competition wars Several planes built kits displayed among scratch-built Preci sion class models Ed Wisser returned another DH Tiger Moth Bud Barkley kit A-scale During construc tion finishing Ed worked closely lady owner restorer full-size airplane subse quently killed crash Moth TORK-STARTER revolutionary concept power iSV glow plugs model cars boats end air planes using glow fuel engines TORK-STARTERITMI has steel wrench strong enough reduce compression easier starting supplies power doing comes new CI1O charger has LED indicate unit charging also has removable T handle can used Torque amplifier Over 50 consecutive starts full charge rechargeable hundreds times Clips onto plug positive connection Send ad along pre-payment receive free shipping handling 12421 Ransom Dr Glenn Dale MD 20769 L TORK-STARTER $29 95 Charger 11 OV 220V 1 2V Fast Charger $2095 Without Charger CHARGERS $1295 Charger Only 11 OV 220V 1 2V Fast Charger 301 464-2260 Another kit-built model John Revel bs Cessna L-19 Bird Dog using OS 120 Gemini twin model originated Circus Hobbies kit Stand-off Scale classes produced array quality aircraft some sur prises Non-Military group winner 1928 Heath Super-Parasol equipped Saito four-stroke FA 120 large model 35o scale 104-in wingspan followed full-scale practice great extent example external aileron cable controls faithfully reproduced working order Only exposed Saito engine relegated Heath Stand-off class second place German primary glider built Jeff Troy Surrounded soaring gliders model hardly seemed contention prize constructed follow full-scale fabrica tion possible respect controls through cables exposed view fuselage primary glider-type machine exposed skeleton models framework authentic laminatedform wooden members competition against some rather astoundingly impres sive Giant Scale entries gliders high placing real surpriseand welldeserved Military Stand-off Scale winner finely-camouflaged Fiesler Storch again small model among giants displayed built Jim Suchy 70-in span model wasnt really small ex cept comparison its competitors featured working slats flaps original STOL aircraft Jim built model Dennis Bryant drawings available US Bob Holman Plans Operational slats seldom seen models second place Frank Hoffer German WW Albatross D III small airplane wingspan 59 almost hidden overwhelming mass larger display craft Frank Toledo regulars has something new exhibit year mostly WW vintage out-ofordinary Keith Shaw electric-power enthus iast previously shown Spitfire TICK OFF TIMER Now Available 0-20 Seconds Fuel shutoff Flood Off Auto rudder function Weight % oz Fuel line included EXTRA FUEL LINE TUBINGSO- ft DIRECT ORDER ONLY Send Cash Check MO $3 extra Calif 6% JOHN TATONE 62 BELHAVEN AVE DALY CITY CA 94015 Limited supply 122 Model Aviation Aeronca K/Wischer Continued page 119

NO OCR TEXT NO OCR TEXT simple yellow black color scneme OT tne proorype gives moasi great VISIDIIITY say ana ii easiest dupiicate werent piiot figure wouid very difficuit indeed teii what see fuii-size version modei OS Gemini 120 twin proved wise choice K its 12-lb weight Power adequate normal climb maneuvers new OS 160 twin could also used its overall dimensions nearly identical 120 Flying Aeronca high altitude Reno Nats could have used extra power 160 Under ordinary flying circumstances 120 four-stroke either single twin cylinder sufficient Because Aeronca light weight flies quite slowly 120 engine no need special highenergy servos servos used Tech RC Titans 38 in-oz output torque has no problem control surface travel servo large ailerons assures full travel Mounting servos near wing root shortens extension cord Y-shaped exhaust pipe brass tubing sliver soldered tothe stub exhausts Gemini combination aircisanerand carburetor heateronthepipebecomesa muffleronthe modei piane much exquisite de taii niceiy compiimented scaisilke appearance four-stroke Gemini Twin passes upward behind cabin rear bulkhead over cabin roof Y connection cord becomes part airplane structure Cabin interior quite compiete controi whesis push-pu ii throttie strument panei visibie hinges doorwere fordoli houses butworkweii 24 Model Aviation nougul viewi ,1rutattachmentto fuselage unuws wing-warp adjust ment setup rear strut func tional modei great heip trimming Aileron servos iccated wing roots hooked receiver Y connection An aiuminum access panei can removed service servo Left The 05 GeminI 120 engIne appears have made tar Aeronca K crankcase has shrouded tapered aluminum tube simulate Aeronca engines shape Right halt-dozen tins beneath Gemini turther disguise Aeronca E-113C Left The seat belt ana meatner-covered seat Vi5iDl through open door inside surtace tabric covered Note door latch Right sefvos tor rudder elevator completely hidden seat can reached through large cabin door Left Rib stitching rib tapes aileron horn strut brackets Inspection covers shown bottom view ot right wing Right small tabric tiliet top ot landing gear talring true scale natural shape taken covering buried beneath covering fabric Elevator rudder servos located beneath cabin seat receiver battery throttle servo mounted just behind engine short length flexible pushrod carburetor An extension cord servo passes beneath cabin floor receiver manner RC equipment hidden view cockpit can completely finished controls instru ment panel seat basic fuselage structure fullsize model triangular truss faked out formers stringers triangular cross section first used Aeronca C series K subsequent Chief Champion air planes Nose substructure cabin sides model plywood strength Construction The following steps recommended proper assembly se quence Begin fuselage structure August 1985 25 Left Working shock absorbers within landing gear legs operating scissors functional realistic details text alec describes aftemate methods wish invest time construct Right Taii surfaces braced functionai streamilned wires fastened surfaces miniature hexagonai screws License number authors fuli-size K Left The windshield fastened prototype aiumlnum strips rows 0-80 00-90 machine wood screws Dowei intemai fuseisge bracing represents steel tubing cabin Right Wings heid aiignment music wire pins shown extending tube guides Aiieron servo connector extension cord hidden cabin roof Note aluminum frames around windshield side window edges Au istypicai detaiiing shouid strive contest worknot necemryto just have fun Left The acrylic Plexiglas skylight fastened prototypical manner aluminum framework Aluminum strips cover fuse lage-to-wing joint Right dummy control horn adds realism Note view aileron ribs aligned wing ribs building basic A-frame lower longerons crosspieces differs usual method building-up joined sides necessary because fuselage cross section changes drastically front rear triangular upper structure added vertically above A-frame formers cabin floor added Plywood cabin sides cut out framing balsa added external surfaces two birch dowels drilled axially brass tube inserts will mount wings Cabin sides assembled tubes through sides alignment sub-assembly set loosely A-frame blocked certain angular equality direc tions Use thin cyanoacrylate CyA ce 26 Model Aviation N % N 3/16 BALSA N 1/16 DIA NUSIC WIRE AILERON PUSHROD /8 BALSA FILLER NOVER SPARS TOP B BOTTOM 1/4 SQUARE SPRUCE SPARS BOB WISCHER AERONCR K - 5/32 X 3/8 SPRUCE TRAILING EDGE 3/16 X 1/4 BALSA STRINGERS 1/4 BALSA CABIN ROOF 1/8 BALSA /4 SQUARE BALSA 3/32 PLYWOOD 3/32 BALSA /16 BALSA EDGE OVERLAY & 1/4 SQ BALSA 3/32 BALSA 1/4 SQ SPRUCE SPARS- BEVELED /2 SQ BALSA- BEVELED LEADING EDGE /4 SQ BALSA 3/16 X 1/4 BALSA WITH SLOTTED ENDS ALL FORMERS 1/8 BALSA FRONT COWL 010 ALUMINUM 120 TWIN ENGINE FIBERGLASS NOSE-BOWL ED OVER FOAM PLUG BOTTOM COVER 9 010 ALUMINUM 4130 STEEL TUBE 437 OD 028 WALL 3/8 BALSA CABIN REAR BULKHEAD 1/B BALSA 1/8 BALSA 1/4 SQ BALSA STRUT ATTACHMENT BRACKET 031 ALUMINUM REAR STRUT- MAPLE WING STRUT AND LANDINGFRONT STRUTMAPLE GEAR BRACKETS RIB I/B BALSA3/16 DOWEL AlL CENTER HINGE SUPPORT LANDING GEAR FAIRING 010 ALUMINUM 4 OR 45 SMOOTH TREAD TIRES 015 BRASS CLAMP ment freeze joints dowel ends bottom cabin sides meet A-frame Before removing supporting blocks add balsa cabin roof rear triangular bracing join sides A-frame structure fuselage has now become rigid assembly can handled addi tion A-in balsa stiffeners top area along lower longerons Air foil-shaped blocks YB-in balsa now cemented together form angle shown fuselage top view assembled cabin sides stringers tail post plywood stabilizer keel added next followed fin ribs leading edge plywood nose sub-structure assembled unit cemented inside edges fuselage front epoxy basswood gusset strips sides will act alignment fixture cementing balsa floor nose section next sequence followed formers plywood cowlings rear landing gear support Landing gear order complete fuselage steel tube landing gear needed next decision needs made point regarding shock-absorb ing feature landing gear simpli fied non-shock gear shown anyone prefers evade extra labor tubing used aircraft quality 4130 chrome-molybdenum steel tub ing wall thickness 035 would suitable avoid necessity elabo rate fixturing brazed joints tube should notched rather cut through completely tube bent held together remaining metal proper angle gap closed nearly Braze bronze rod will fill gaps joint used Tuf-Grind AC-4 wheel Dremel grinder cut notch could also done hacksaw %2-in music wire brace also brazed main gear paying particular attention difference level two parts shown drawing sheet 1 landing gear can now set its grooved supports metal clamps fabricated secure place Balsa fair ing support blocks tack-cemented gear legs gussets added anchor blocks nose sub-structure Once fairing blocks located final position landing gear can removed breaking tack-cemented joints landing gear can now complet ed Lower legs also made aircraft steel turned down slide fit inside upper legs spring wound 055 music wire standard size hobby shops carry K&S line products some areas local Ace Hardware Stores also have wide selec tion ready-made springs pair can chosen will support 12-lb airplane spring should have load about 6 lb deflection R BALSA CABIN ROOF H5j__ LB BALSA N INOTCH FOB AlL SERVO LEAD WIRE 3HR BALSA / SS2 PLYWOOS / F-S lSt PLYWOOD S ROLE SCREWORIVER ACCESS ________________TO TITAN THROTTLE SERVO o0Z BALSACBLISS NOES F-I FOELSTDRPHOLEtifi NOR~FFzz POINTII ROTSFS INO 0112 BALSA ____ OIOD PLO ENGINE MDSRHTF-IAS/ LAMINATE TIWEE LAYERSItO SD BALSA 112 50 BALSA FINE NEROL-17/I SCREEN1 BIRCH SUWELICH BRACELIC AERONCA COMSNATIDNFIB RALASS NODE BOWL AIB CLEANER ABS FOBBES OVER FOAM P500 AM HEATER BAFFLER ON NOVEL S 540 ALUMINUM CLAMP 114 BALSA \\ \\\\\ VOD ALUMMAM BINS STROT ABS LANSINO I BOTTOM COVER OIO ALUMISIDA 0 OS SMOOTH TREAS TIRES\\\\\\\ Brass plugs low-temperaturesoldered spring ends No brazing heat will alter music wire no longer spring machine screw top secures spring lower leg upper leg brass blocks scissors subject abuse hard landings should brazed position alternate landing gear consists 4130 tubing longer legs either type short tube brazed lower end accept %2-in music wire stub axle reasoned hard landing could bend wire should easily replaceable soft-soldered tube An simple landing gear could formed single piece bent Y16-in dia rod However some hazard damage landing gear fairings due deflection type gear hard landing tie rod 28 Model Aviation Full-Size Plans Available. See Page 156 001 ALUMINUM MACRET /MUSE WIRE DIAMETERS FOR STAB BRACE WWEO Ii PER/ STREAMLINES STEEL STABILIZER BRACE WIRES 094 WIDE DAT TRICK MULTIPLE SOLDERED MUSIC WIRESSLOTTO BREMEL ABRASIVE DISC LOWERA BRASS CLEVIS TABILIZER Vzzz/BRUCE WRE SECTORS 0 TIMES SIZE SOLDER SANDED /SYDA 010 MUSIC WIREBBS BARNISRED WITS STEEL WOOL TO SIMULATE STABILIZER ROASTSPOLISHED STAINLESS STEEL IItOD SLURINAM TAME CRIMPED TISOTLY 7 -ItS PLOWOOS RUDDER BOSS 018 CIA MAIMED STEEL CABLE VSO 15 MUSS TAME ASS LOSS 3V5Z LU BRASS TARE STABILIZER KEEL SVSZ PLTWOOO 015 BALSA EDUE OVERLAT __________________BINDOBIELD PATTERN 051 PLESISLAS / — . 7________ F- 8/ APPEB COWLIiI lUST PLTWOODI A[AS OS BALSA FOVIR B IUO BULSAITO BALSAK BSTRINGERS A7 ~iIIl iIII ALSA 4SUAABE BALSAvsZ PLTRSOD__rr r ITO SOI _____________________BALSASTABILIZER44SILVER SOLDER MACE WIRE to4BALSABASSETjliOlA_____ ATELASS 0DM TORE 001 BRASS UTLII USA BASIC TED 0flHY MERE BLYUSC ALAMOSUM BRACKETS TB 05 BRASS TUBE110 BRASS 001 BRASS PLATES/TUBE 450 STEEL TAMETURNS TAL WBEEL TILLER BAR 500 SD OS BALLAND FOLD SAWN OTiB S ITO TAPERED STRISSER US EDETEBIANESILVER SOLDER ASSEMBLYO4SALAMINAB B RE LUSSIRS SEAR BRACEBRAZES JOINT lUBE BRONZE RODITAIL WHEEL FORK STO U 110 BALSA RIBS I 6 BOOSSBO 050 SCREW LOWER PHINS PLUSSPRIIS CR8 MASS ASSMERE APPROD/ OOH US/ // SAL SE B TA DIA STEELHISS STEEL TABE-MUSIC WIRES SALACRED AST OS SAR WALL STEEL LAS BRAZE TO STRUT BATBOC LSAAIKTERB TOO BUSRECIIMED TO HUB IBRARS ELDVBALTERNATE LANDINS SEARBLACKSNO H-AC ARE WITHOUT SABER STRATS RUSS MUSIC MERE-LOW TEMP RSLDER 0IA4SU II .iIIiIiIiiI IN LEVELSSO PLYWOOD - ~E-LOWERUPPER SO 301 IISI DBILL..-IIAHO LORNI DRILL SEISSSBS-OSJ ALAUBBJN AEREWA AERONCA K BODEL AND DRAWIBOS BT BOB WISEHER BINUSPAS 5 FEET BEISRT lIT LBS WIRU LOADINS 203 OZ PER SOFT SCALE ITO S"I FT hown across gear legs drawings s mostly cosmetic rigid tubing rear would become functional lecessity smaller diameter rod-type Lrrangement tube-type landing gear allows full-scale construction closely nglne Mount Gemini furnished vith aluminum radial mount cant e used Aeronca because its xcessive overall dimensions However didnRt wish subject engine mount ing lugs undue loads uneven tight ening mounting bolts wood surface chose mount engine 3A6-in aluminum plate worth addition prevent breaking lug horribly expensive over $60 crankcase rear housing Handle Gemini carefully though family jewels four-spar wings simple basic construction Spars spruce hard balsa acceptable substitute Front spars beveled match slope leading edge balsa sheeting table saw can used beveling angles 80 lower spar 170 upper Rear spars set beneath surface covering fabric will touch consequence small blocks fitted gaps above August 1985 29 NOTE ALISIRERT FUR I/B BA 0 SALESI NEGATIVE INCIMENCE Left Balsa farmers fill out shape Cyanoacrylate cement speedsup building time phases Right Plywood cabin sides have door opening right side window left plywood template used cutting wing ribs also shown Left Plywood cabin sides after theyve balsa framework cemented external surfaces Right cabin sides dowel wing supports have erected over fuselage framework cabin floor roof diagonal bracing have also added dowels represent tubing structure prototype will drilled axially brass inserts will mount wing spars rib position angled tail root ribs should exactly match angle airfoil-shaped blocks cabin sides certain exact alignment brass tubes wing fuselage following procedure will helpful step completed before adding balsa sheeting wing bottom surface fuselage blocked up invert ed position wings plugged music wire alignment pins have proper dihedral angle ing held firmly position tapered balsa blocks epoxied above below brass tubes fill gaps between tube front spars Tapered blocks also used rear spars epoxied spar front surfaces plywood gusset plates balsa blocks between rear spars added wing bottom surface will left un covered between first two ribs between spars servo access cover area made 010 aluminum held place small wood screws few places model deviates true-scale appearance Aeronca K has friese-type ailerons hinges located below aileron sur face aileron nose leading edge dips below lower wing surface alleron raised banking turn 30 Model Aviation Left Fuselage construction begun basic A-frame 1/4 sq balsa lower longerons crosapieces Above Trlanguiar uprights dlagonai bracing foliow pattern fuli-size Aeronca K fuselage form basic skeleton model Full-Size Plans Available. See Page 156 / EASERAS ELERCETIS ASS ES SEASliTin ECUE EAR ACELjLJLiIS SEAR EULSCSAS ______ EPTF-6 F-7 RUTS CIA MUSIC WIRE EET TIE- ICTA ALTIECCO UTTER COCELSASS PARASItERCAA CTR CABIN ElSE I, I ICAA ICE EALTA STRIESER _Ir IiIi\ AL PASSERS1C5 BARASCAC SESECT ASEAT U SCIE CIA ElECT COSEL/ SETACI TETUA SECTAERONCA K S EAR ISECTETRESETS principle portion dips down intended induce drag counteracts adverse yaw tendency airplane yaw direction opposite turn some doubt about effective ness friese ailerons model view shows drastic shape change occurs frontto rearof fuselage cabin sides paraiiei being some what narrower bottom top Aeronca supposedly true-scale air craft therefore necessary models aileron hihges actually metal-on-wood bearing surface concerned about unlimited life wear hinges would considered un Cabin roof rear triangie iower iongerons fiiied-in sheet baisa wing root baisa blocks shaped airfoli cemented sides August 1985 31 Li suitable have used wood surface bearings past though have found wear occurs metal part wood hinge will outlast model Wing struts model made scrap soft maple purchased pennies local furniture factory really easy carve streamlined shape excess material removed successive cuts table saw struts could made bass spruce very hard balsa strut ends made round brass rod holes drilled tapped brass machine screw screw silver-soldered brass rod screw head removed rod drilled axially fastening screw threaded end epoxy-cemented deep hole drilled strut end very permanent joint inner end rear strut made adjustable two pieces head removed No 10 brass screw hole bored down its center tapped No 6-32 thread epoxied strut end brass clevis has No 6-32 thread locked nut Turning clevis pro vides adjustment twist wing panel exactly same manner prototype adjustment can bless ing model tends turn flight neutral rudder ailerons Tail surfaces Aeronca thin flat airfoil shape Leading trailing edges smaller diameter tub ing hinge line model sand balsa edge material simulate smaller diameter especially along tralling edge prototype connec tion stabilizer fuselage means telescoping tubes exter nal wire bracing principal support models stabilizer halves support ed similar manner tubes music wire pins inner end func tional streamlined steel wires carry load outer extremities stabilizer tubes must exactly match plywood stabilizer keel fuselage Tubes keel length shown sheet 1 drawings tube ends will just touch stretched fabric fuselage sides must exactly parallel viewed vertically horizontally wing mounting Parallelism can checked dimensionally inserting 1-ft lengths %2-in music wire keel tubes before freezing position CyA stabilizer halves assembled short music wire pins blocked position tubes epoxy-cemented sequence assures alignment stabilizer can freely inserted over pins final assembly binding model brace wires actually hold stabilizer halves tightly against fuselage As shown drawing sheet 1 /1/I/B BALSA f/Il H B BALSA IEOBE SOEBYAT TOP ABA BOTTOM V -_ 11 I/B BALSA11BETWEEN 2RBS -ffi ~~~1~~~ I/B S S/B BALSA Ii I/IA PLYROOS I/B B I/A BALSA AILEBOB BELCBABB 0/02 PLY 3/IA DEWY F/ 3/32 MUSIC WIRE Z DIHEDRAL lB2 3/320 BRASS TUBE EPOXY B ALIABMENT WITH 804 __STABILIZER KEEL /4 55 BALSA ELEVATOR BORN 0/SO BALSA 0/IB 01/4 BALSA BALSAWITH S LOTTEDI EBBS/4 B B/IN BALSA I/HO 3/B BARS BALSA I/IA BALSA EDGE OVEBLAB brace wires made music wire two different diameters soldered together board prevent warping sanded burnished steel wool bring polish appear ance stainless steel Solder least 50% tin content will provide best finish Ends central music wire 0/SO BALSA soldered brass devises pinned brackets mount tail surfaces melting solder devises wires can adjusted length make quite tight after assembly model Clamp heat sink polished portion wire avoid melting 32 Model Aviation Full-Size Plans Available. See Page 156 T I,I..~~ II I~4...----i4- zzzz. [v32][b-1-10-1-10]] VB 00 BRASS TUBE ROSB 0 3/B SCREW DOUBLE SIZE VIEW OF AILERON HINGE I. 5/32 03/B SPRUCE TRAILING EDGE AILERON HINGE RIB HINGE RIB I/H OGUAFA SPRUCEI/B BALSA FILLER SPARSOVER SPURS TOP BOTTOB I/B PLYWOOD I/H BASSWOOD I/IS SIA MUOC WIRETECH B/C TITAN AILERON P000000I/ISPLYWOODSEHOS SHOWN I/H5G UPRUCESAG BALSAI/H PLYSROOS SPARS BE VS LEO IS 0 o -H-----$----------L----I-- --m-----------.., AILE BRA BELCBANS I/IS R/CWOOU MB GA DOWEL I/IS GA BASE WISE YHBAISAE IS PLYWOOS IS PLYWOOW AL HORN S/H BALSA SECT BALSA -I/H BALSA 1/2 55 BALSA BEVELED SECT C NI/B PLOHOOD AUSSET 010 ALUMINUM COUCH BUTTON IS OPES BETWEEN FIHST TWO RIBS 5/B 55 BASSWOOD I/B PLYWOOD 5/IS SO BASSWOOD 1W PLYWOOD ISI2345 INSIDE/SECD I/B 00 ALUM5/52DIAMETER BBASS TUBE EPOST BETWEEN I/H BALSA WEDGE TUBEBLOCAS IN ALIGNMENT WITH MUSIC WIBE PINS SUOWN ON SHEET 2 SO ______STRUT ATTACHMENT BRACKETMAINTAIN DIHEDRAL DIMENSION 031 ALUMINUMWHILE EPOXY HARDENS S/B SIAAILERON HISS- I/B BALSA 5/IS ALOMBIUM STREAMLINEDTUBE N RIB -I/B BALSACUT ID BINS FOR AILERON 1/2 DIA 3/IS SIAS/IS DIA 5/52 ALUM TUBE RACE ET3/DO BALSA ROOT RIB I/H HARD BALSA I/H DIA 015 BBASS CLAMPND SOLIDRO DBILLNO HO LONG DRILL HINGE RIB- I/IS PLYWOUDAILERON IMISE RIB- I/IS PLOWOUS 3/32 BALSAFRONT STRUT ENDS- I/H DIA BRAGS -SILVER SOLDER TO NOR-3D THREADED ROD - EPOSY ISTS STRUT //AERONCA K 052 ALOB PLATEMV BAR WISCRER EPSOT PLATE IN SLOT CLEVIS WITH NO H-SD THBEAS ROD-BRASS BRASS TUBE-TAP 5-52 EPOUTSHEETS CoverIng material Aeronca Sig Koverall producing very scalelike finish particularly well-suited making fabric fillets small dor sal fin front edge landing gear fairings wood surfaces will come contact covering material given three coats heavy dope fuselage sides toP fin covered two pieces Koverall side joined top stringer bottom separate piece though would have small challenge have included side pieces small heat sealing tool set medium heat used shrink Koverall smooth cover fillets formed special effort Sig recommends nitrate clear dope However brushed three coats non-tautening butyrate stead5 can see no ill effects Koverall already tight dope applied Simulated rib stitching made Wilhold R/C-56 glue applied August 1985 33 -I/H 0G SPRUCE SPARS- BESELED -IIS PLYWOOD PAIRLEASS FOR AILERON PUNOROUS Left Stringers added sides top framework fitted notches tail post added rear diagonal bracing provides rigidity point fuseiage weighed 14 oz Right plywood stabilizer keel cemented iiace brass tubes stab support Ply balsa gussets strengthen tail post very light model slightly nose-heavy 1 Left m plywood nose sub-structure engine mount ianding gear gruuved supports place Use epoxy cement area maximum strength Right Bottom view cover removed show landing gear mounting Aluminum clamps se cure gear grooves shockabsorbing landing gear helps keep model bouncing being damaged rough landings throttle servo wire routed beneath cabin floor keep interior iooking neat Au photos author over wing tail surface ribs wear points fabric such ribs stringers leading edges trailing edges longerons covered pinked tape material used selfadhesive 3M Hair Setting Tape purchased drug store Its serrations bit too large strictly scale size static judging class competition done distance finer serra tions would visible tape given coat clear dope additional coat clear butyrate mixed aluminum powder sprayed before two coats yellow butyrate standard color factory Loening Yellow color commonly found today used Randolphs Lockha yen Yellow convenient substitute Loening Yellow tinge green slightly different Lockhaven enhance appearance inside cabin door also covered painted fiberglass nose-bowl formed over plug blue insulation styrene foam sanded shape slightly undersize coated vinyl spackling com pound protect foam polyester resin followed Several layers 6-oz fiberglass cloth impregnated poly ester finishing resin laid over plug final layer lighter cloth finer weave used screwdriver digging tool remove foam plug Coarse sandpaper removed last bits foam smoothed interior Remov ing foam simple task matter minutes Dont believe stories about dissolving foam gasoline dope thinner wastes expensive thinner hazardous leaves sticky mess cleaned out bowl afterward Detailing Door hinges brass butt-type came hobby shop carried line doll house supplies A2-scale nearly correct size quarter-scale airplane same shop also tiny piano hinges elevator trim tab Aeronca acrylic Plexiglas windshield afld Continued page 119 34 Model Aviation Upper portion tubular ianding gear has brazed bronze brazing rod angled joints also points rear brace meets tubing windshield form aluminum litho plate stapled biock Note change shape round semi-rectangular rounded corners Hints obtaining kind shape contained text dJ& ROBERTS f last tip own transmit ter switches dual rate mixers ser vo reversing etc comes Guy Wire newsletter Daytona Beach RC Association editor Bill Brad ford month club president Steve Searle Jr has Message Left Seat first page April 1985 issue message concerns safety included preflight check list Item No 3 list DOUBLE CHECK bells whistles transmitter before flying Youd sur prised reports Ive seen crashes caused inadvertent switching bells whistles switches Dont humans makes error month Have safe John Preston 12235 Tilden wood Dr Rockville MD 20852 Aeronca K/Wischer Continued page 34 skylight window drape-formed over aluminum sheet forms made printers litho plate plastic laid across form balanced along its centerline placed pre-heated oven 250 0F Rt 2 Box 2547 La Grande OR 97850 503- 963-0596 VISA Welcome VERY FINEST QUALITY MATERIALS SUPERIOR MACHINE FINISHED PARTS SUPER CLEAN FLYING AIRPLANES FAST BUILDING ENJOYABLE ASSEMBLY forming takes minute two Remove form oven wait another minute cooling plas tic retains shape prefer cut plastic its final shape after forming Use pattern shown drawing determine beforehand whether will fit fuselage Make corrections neces sary make new pattern before cut ting precious windshield blank doubt about exact bent shape windshield form use pattern cut dummy windshield aluminum sheet Bend dummy fit fuselage use shape form Thats extra step may save time end Flying Aeronca few air planes have built slightly noseheavy spite its long tall short nose moments No ballast has add ed flies very well its present balance condition shown drawing will perform tail-spin very well see no reason add tail weight model reluctant enter spin some extra weight would have required tail spin few aerobatic maneuvers K capable performing some concern anyone thinking com petition full-size plane no ballof-fire could perform simple loop split-S wing-over spin Elevator travel measured FIRECAT SPAN 577 ENGINE 35 50 CLASSY LOW WING BEAUTY FLIES IN GROOVE EASY TO TRIM VERY AEROBATIC Also Available TOPCAT Span 577$5950 BI-CAT Span 478750 LASERCAT Span 547450 Dealer Inquiries Invited model 1% up 1% down extra down-motion result elevator horn being swept forward clearance reasons isnt required flight Down-elevator rather useless control Scale models aileron travel 1 in direction could increased bit possibly 1 Rud der travel maximum allowable 3 in direction dimension rudder comes very close touching elevator Wheels Aeronca quite far ward effect landings tendency bounce three-pointer attempted under ideal conditions cer tain bounce-free landing bring bit fast land main wheels also applied flying full-size ship although expected make landing three-pointer during train ing Takeoff requires very little rudder narrow landing gear crosswind takeoff landing can quite adven ture Its best lined up directly wind No model have ever built easier fly highly detailed three-view documen tation drawing Aeronca K NC 19345 license number available 44th-scale Paul Matts Historical Aviation Album Price $500 postpaid Drawing number 15-103-A competition document pur Continued page 122 GIANT TEST STAND recent development large 60 1 6 two cycle four cycle engines has created demand durable heavy duty engivetesting stand newtest stand cast aluminum will become softand oil soaked wood test stands often OCAST IN ALUMINUM FOR STRENGTH DURABILITY AND ENGINE HEAT DISSIPATION SWIDE MOUNTING BASE SUPPORT SADJUSTABLE ENGINE SUPPORT BASES WILL HOLD MOST ENGINES FROM 12 DOWN TO 1/2A S HEAVY DUTY LUG PRESSURE PADS STEEL ENGINE RESTRAINING PINS No 51617SMOUNTING SCREWS INCLUDED AT MOST HOBBY SHOPS OR ORDER DIRECT a aa Send 100 13 page illustrated catalog August1985 119 it- Ai Safety Preston Continued page 20 Schlueter Free Flight Models 3508 Poinsettia Ave Manhattan Beach Ca 90266 Dealer Inquiries Invited 0 S PACIEiC ACE BLACK BULLET PARTIAL KITS plans &printed wood PACIFIC ACE BLACK BULLET 2O$3253O$47O 40T665ADD S2OO SHIPPVJGPOREACHITO3 KIT ORDERCA RES ADO 6I TAX poses drawing should changed show less aileron rib As indicated construction drawing aileron ribs arent line wing ribs small change possibly Paul Matt can convinced correct original art work sketches Aeronca made modeling purposes 1941 contain accurate measurements wing aileron rib spacing positions Pauls address Historical Aviation Album PO Box 33 Temple City CA 91780 RC Scale/Wischers Continued page 43 planes weight seven pounds past Roger Brennom has won first places Stand-off Scale Nats Toledo Northrop P-61 Black Widows has built series MFG OF NI-STARTER $2995 Charger PLEASE SPECIFY WHICH CHARGER WHEN ORDERING newest P-61 entered Precision class because increase exterior detail new model electricallyoperated retracting landing gear weight 25 lbs 05 90 engines eight-foot-span night fighter fits Giant Scale class Hal Parentis new Savoia-Marchetti SM 79 trimotor Italian bomber intend ed FAI competition conten tion against such airplanes Saugers Stinson Skip Masts Hercules Savoia uses three 05 25 engines weighs 125 lbs Finish combination FabriKote silk K&B epoxy Hals ability old-time Pattern flier secret weapon competition wars Several planes built kits displayed among scratch-built Preci sion class models Ed Wisser returned another DH Tiger Moth Bud Barkley kit A-scale During construc tion finishing Ed worked closely lady owner restorer full-size airplane subse quently killed crash Moth TORK-STARTER revolutionary concept power iSV glow plugs model cars boats end air planes using glow fuel engines TORK-STARTERITMI has steel wrench strong enough reduce compression easier starting supplies power doing comes new CI1O charger has LED indicate unit charging also has removable T handle can used Torque amplifier Over 50 consecutive starts full charge rechargeable hundreds times Clips onto plug positive connection Send ad along pre-payment receive free shipping handling 12421 Ransom Dr Glenn Dale MD 20769 L TORK-STARTER $29 95 Charger 11 OV 220V 1 2V Fast Charger $2095 Without Charger CHARGERS $1295 Charger Only 11 OV 220V 1 2V Fast Charger 301 464-2260 Another kit-built model John Revel bs Cessna L-19 Bird Dog using OS 120 Gemini twin model originated Circus Hobbies kit Stand-off Scale classes produced array quality aircraft some sur prises Non-Military group winner 1928 Heath Super-Parasol equipped Saito four-stroke FA 120 large model 35o scale 104-in wingspan followed full-scale practice great extent example external aileron cable controls faithfully reproduced working order Only exposed Saito engine relegated Heath Stand-off class second place German primary glider built Jeff Troy Surrounded soaring gliders model hardly seemed contention prize constructed follow full-scale fabrica tion possible respect controls through cables exposed view fuselage primary glider-type machine exposed skeleton models framework authentic laminatedform wooden members competition against some rather astoundingly impres sive Giant Scale entries gliders high placing real surpriseand welldeserved Military Stand-off Scale winner finely-camouflaged Fiesler Storch again small model among giants displayed built Jim Suchy 70-in span model wasnt really small ex cept comparison its competitors featured working slats flaps original STOL aircraft Jim built model Dennis Bryant drawings available US Bob Holman Plans Operational slats seldom seen models second place Frank Hoffer German WW Albatross D III small airplane wingspan 59 almost hidden overwhelming mass larger display craft Frank Toledo regulars has something new exhibit year mostly WW vintage out-ofordinary Keith Shaw electric-power enthus iast previously shown Spitfire TICK OFF TIMER Now Available 0-20 Seconds Fuel shutoff Flood Off Auto rudder function Weight % oz Fuel line included EXTRA FUEL LINE TUBINGSO- ft DIRECT ORDER ONLY Send Cash Check MO $3 extra Calif 6% JOHN TATONE 62 BELHAVEN AVE DALY CITY CA 94015 Limited supply 122 Model Aviation Aeronca K/Wischer Continued page 119

NO OCR TEXT NO OCR TEXT simple yellow black color scneme OT tne proorype gives moasi great VISIDIIITY say ana ii easiest dupiicate werent piiot figure wouid very difficuit indeed teii what see fuii-size version modei OS Gemini 120 twin proved wise choice K its 12-lb weight Power adequate normal climb maneuvers new OS 160 twin could also used its overall dimensions nearly identical 120 Flying Aeronca high altitude Reno Nats could have used extra power 160 Under ordinary flying circumstances 120 four-stroke either single twin cylinder sufficient Because Aeronca light weight flies quite slowly 120 engine no need special highenergy servos servos used Tech RC Titans 38 in-oz output torque has no problem control surface travel servo large ailerons assures full travel Mounting servos near wing root shortens extension cord Y-shaped exhaust pipe brass tubing sliver soldered tothe stub exhausts Gemini combination aircisanerand carburetor heateronthepipebecomesa muffleronthe modei piane much exquisite de taii niceiy compiimented scaisilke appearance four-stroke Gemini Twin passes upward behind cabin rear bulkhead over cabin roof Y connection cord becomes part airplane structure Cabin interior quite compiete controi whesis push-pu ii throttie strument panei visibie hinges doorwere fordoli houses butworkweii 24 Model Aviation nougul viewi ,1rutattachmentto fuselage unuws wing-warp adjust ment setup rear strut func tional modei great heip trimming Aileron servos iccated wing roots hooked receiver Y connection An aiuminum access panei can removed service servo Left The 05 GeminI 120 engIne appears have made tar Aeronca K crankcase has shrouded tapered aluminum tube simulate Aeronca engines shape Right halt-dozen tins beneath Gemini turther disguise Aeronca E-113C Left The seat belt ana meatner-covered seat Vi5iDl through open door inside surtace tabric covered Note door latch Right sefvos tor rudder elevator completely hidden seat can reached through large cabin door Left Rib stitching rib tapes aileron horn strut brackets Inspection covers shown bottom view ot right wing Right small tabric tiliet top ot landing gear talring true scale natural shape taken covering buried beneath covering fabric Elevator rudder servos located beneath cabin seat receiver battery throttle servo mounted just behind engine short length flexible pushrod carburetor An extension cord servo passes beneath cabin floor receiver manner RC equipment hidden view cockpit can completely finished controls instru ment panel seat basic fuselage structure fullsize model triangular truss faked out formers stringers triangular cross section first used Aeronca C series K subsequent Chief Champion air planes Nose substructure cabin sides model plywood strength Construction The following steps recommended proper assembly se quence Begin fuselage structure August 1985 25 Left Working shock absorbers within landing gear legs operating scissors functional realistic details text alec describes aftemate methods wish invest time construct Right Taii surfaces braced functionai streamilned wires fastened surfaces miniature hexagonai screws License number authors fuli-size K Left The windshield fastened prototype aiumlnum strips rows 0-80 00-90 machine wood screws Dowei intemai fuseisge bracing represents steel tubing cabin Right Wings heid aiignment music wire pins shown extending tube guides Aiieron servo connector extension cord hidden cabin roof Note aluminum frames around windshield side window edges Au istypicai detaiiing shouid strive contest worknot necemryto just have fun Left The acrylic Plexiglas skylight fastened prototypical manner aluminum framework Aluminum strips cover fuse lage-to-wing joint Right dummy control horn adds realism Note view aileron ribs aligned wing ribs building basic A-frame lower longerons crosspieces differs usual method building-up joined sides necessary because fuselage cross section changes drastically front rear triangular upper structure added vertically above A-frame formers cabin floor added Plywood cabin sides cut out framing balsa added external surfaces two birch dowels drilled axially brass tube inserts will mount wings Cabin sides assembled tubes through sides alignment sub-assembly set loosely A-frame blocked certain angular equality direc tions Use thin cyanoacrylate CyA ce 26 Model Aviation N % N 3/16 BALSA N 1/16 DIA NUSIC WIRE AILERON PUSHROD /8 BALSA FILLER NOVER SPARS TOP B BOTTOM 1/4 SQUARE SPRUCE SPARS BOB WISCHER AERONCR K - 5/32 X 3/8 SPRUCE TRAILING EDGE 3/16 X 1/4 BALSA STRINGERS 1/4 BALSA CABIN ROOF 1/8 BALSA /4 SQUARE BALSA 3/32 PLYWOOD 3/32 BALSA /16 BALSA EDGE OVERLAY & 1/4 SQ BALSA 3/32 BALSA 1/4 SQ SPRUCE SPARS- BEVELED /2 SQ BALSA- BEVELED LEADING EDGE /4 SQ BALSA 3/16 X 1/4 BALSA WITH SLOTTED ENDS ALL FORMERS 1/8 BALSA FRONT COWL 010 ALUMINUM 120 TWIN ENGINE FIBERGLASS NOSE-BOWL ED OVER FOAM PLUG BOTTOM COVER 9 010 ALUMINUM 4130 STEEL TUBE 437 OD 028 WALL 3/8 BALSA CABIN REAR BULKHEAD 1/B BALSA 1/8 BALSA 1/4 SQ BALSA STRUT ATTACHMENT BRACKET 031 ALUMINUM REAR STRUT- MAPLE WING STRUT AND LANDINGFRONT STRUTMAPLE GEAR BRACKETS RIB I/B BALSA3/16 DOWEL AlL CENTER HINGE SUPPORT LANDING GEAR FAIRING 010 ALUMINUM 4 OR 45 SMOOTH TREAD TIRES 015 BRASS CLAMP ment freeze joints dowel ends bottom cabin sides meet A-frame Before removing supporting blocks add balsa cabin roof rear triangular bracing join sides A-frame structure fuselage has now become rigid assembly can handled addi tion A-in balsa stiffeners top area along lower longerons Air foil-shaped blocks YB-in balsa now cemented together form angle shown fuselage top view assembled cabin sides stringers tail post plywood stabilizer keel added next followed fin ribs leading edge plywood nose sub-structure assembled unit cemented inside edges fuselage front epoxy basswood gusset strips sides will act alignment fixture cementing balsa floor nose section next sequence followed formers plywood cowlings rear landing gear support Landing gear order complete fuselage steel tube landing gear needed next decision needs made point regarding shock-absorb ing feature landing gear simpli fied non-shock gear shown anyone prefers evade extra labor tubing used aircraft quality 4130 chrome-molybdenum steel tub ing wall thickness 035 would suitable avoid necessity elabo rate fixturing brazed joints tube should notched rather cut through completely tube bent held together remaining metal proper angle gap closed nearly Braze bronze rod will fill gaps joint used Tuf-Grind AC-4 wheel Dremel grinder cut notch could also done hacksaw %2-in music wire brace also brazed main gear paying particular attention difference level two parts shown drawing sheet 1 landing gear can now set its grooved supports metal clamps fabricated secure place Balsa fair ing support blocks tack-cemented gear legs gussets added anchor blocks nose sub-structure Once fairing blocks located final position landing gear can removed breaking tack-cemented joints landing gear can now complet ed Lower legs also made aircraft steel turned down slide fit inside upper legs spring wound 055 music wire standard size hobby shops carry K&S line products some areas local Ace Hardware Stores also have wide selec tion ready-made springs pair can chosen will support 12-lb airplane spring should have load about 6 lb deflection R BALSA CABIN ROOF H5j__ LB BALSA N INOTCH FOB AlL SERVO LEAD WIRE 3HR BALSA / SS2 PLYWOOS / F-S lSt PLYWOOD S ROLE SCREWORIVER ACCESS ________________TO TITAN THROTTLE SERVO o0Z BALSACBLISS NOES F-I FOELSTDRPHOLEtifi NOR~FFzz POINTII ROTSFS INO 0112 BALSA ____ OIOD PLO ENGINE MDSRHTF-IAS/ LAMINATE TIWEE LAYERSItO SD BALSA 112 50 BALSA FINE NEROL-17/I SCREEN1 BIRCH SUWELICH BRACELIC AERONCA COMSNATIDNFIB RALASS NODE BOWL AIB CLEANER ABS FOBBES OVER FOAM P500 AM HEATER BAFFLER ON NOVEL S 540 ALUMINUM CLAMP 114 BALSA \\ \\\\\ VOD ALUMMAM BINS STROT ABS LANSINO I BOTTOM COVER OIO ALUMISIDA 0 OS SMOOTH TREAS TIRES\\\\\\\ Brass plugs low-temperaturesoldered spring ends No brazing heat will alter music wire no longer spring machine screw top secures spring lower leg upper leg brass blocks scissors subject abuse hard landings should brazed position alternate landing gear consists 4130 tubing longer legs either type short tube brazed lower end accept %2-in music wire stub axle reasoned hard landing could bend wire should easily replaceable soft-soldered tube An simple landing gear could formed single piece bent Y16-in dia rod However some hazard damage landing gear fairings due deflection type gear hard landing tie rod 28 Model Aviation Full-Size Plans Available. See Page 156 001 ALUMINUM MACRET /MUSE WIRE DIAMETERS FOR STAB BRACE WWEO Ii PER/ STREAMLINES STEEL STABILIZER BRACE WIRES 094 WIDE DAT TRICK MULTIPLE SOLDERED MUSIC WIRESSLOTTO BREMEL ABRASIVE DISC LOWERA BRASS CLEVIS TABILIZER Vzzz/BRUCE WRE SECTORS 0 TIMES SIZE SOLDER SANDED /SYDA 010 MUSIC WIREBBS BARNISRED WITS STEEL WOOL TO SIMULATE STABILIZER ROASTSPOLISHED STAINLESS STEEL IItOD SLURINAM TAME CRIMPED TISOTLY 7 -ItS PLOWOOS RUDDER BOSS 018 CIA MAIMED STEEL CABLE VSO 15 MUSS TAME ASS LOSS 3V5Z LU BRASS TARE STABILIZER KEEL SVSZ PLTWOOO 015 BALSA EDUE OVERLAT __________________BINDOBIELD PATTERN 051 PLESISLAS / — . 7________ F- 8/ APPEB COWLIiI lUST PLTWOODI A[AS OS BALSA FOVIR B IUO BULSAITO BALSAK BSTRINGERS A7 ~iIIl iIII ALSA 4SUAABE BALSAvsZ PLTRSOD__rr r ITO SOI _____________________BALSASTABILIZER44SILVER SOLDER MACE WIRE to4BALSABASSETjliOlA_____ ATELASS 0DM TORE 001 BRASS UTLII USA BASIC TED 0flHY MERE BLYUSC ALAMOSUM BRACKETS TB 05 BRASS TUBE110 BRASS 001 BRASS PLATES/TUBE 450 STEEL TAMETURNS TAL WBEEL TILLER BAR 500 SD OS BALLAND FOLD SAWN OTiB S ITO TAPERED STRISSER US EDETEBIANESILVER SOLDER ASSEMBLYO4SALAMINAB B RE LUSSIRS SEAR BRACEBRAZES JOINT lUBE BRONZE RODITAIL WHEEL FORK STO U 110 BALSA RIBS I 6 BOOSSBO 050 SCREW LOWER PHINS PLUSSPRIIS CR8 MASS ASSMERE APPROD/ OOH US/ // SAL SE B TA DIA STEELHISS STEEL TABE-MUSIC WIRES SALACRED AST OS SAR WALL STEEL LAS BRAZE TO STRUT BATBOC LSAAIKTERB TOO BUSRECIIMED TO HUB IBRARS ELDVBALTERNATE LANDINS SEARBLACKSNO H-AC ARE WITHOUT SABER STRATS RUSS MUSIC MERE-LOW TEMP RSLDER 0IA4SU II .iIIiIiIiiI IN LEVELSSO PLYWOOD - ~E-LOWERUPPER SO 301 IISI DBILL..-IIAHO LORNI DRILL SEISSSBS-OSJ ALAUBBJN AEREWA AERONCA K BODEL AND DRAWIBOS BT BOB WISEHER BINUSPAS 5 FEET BEISRT lIT LBS WIRU LOADINS 203 OZ PER SOFT SCALE ITO S"I FT hown across gear legs drawings s mostly cosmetic rigid tubing rear would become functional lecessity smaller diameter rod-type Lrrangement tube-type landing gear allows full-scale construction closely nglne Mount Gemini furnished vith aluminum radial mount cant e used Aeronca because its xcessive overall dimensions However didnRt wish subject engine mount ing lugs undue loads uneven tight ening mounting bolts wood surface chose mount engine 3A6-in aluminum plate worth addition prevent breaking lug horribly expensive over $60 crankcase rear housing Handle Gemini carefully though family jewels four-spar wings simple basic construction Spars spruce hard balsa acceptable substitute Front spars beveled match slope leading edge balsa sheeting table saw can used beveling angles 80 lower spar 170 upper Rear spars set beneath surface covering fabric will touch consequence small blocks fitted gaps above August 1985 29 NOTE ALISIRERT FUR I/B BA 0 SALESI NEGATIVE INCIMENCE Left Balsa farmers fill out shape Cyanoacrylate cement speedsup building time phases Right Plywood cabin sides have door opening right side window left plywood template used cutting wing ribs also shown Left Plywood cabin sides after theyve balsa framework cemented external surfaces Right cabin sides dowel wing supports have erected over fuselage framework cabin floor roof diagonal bracing have also added dowels represent tubing structure prototype will drilled axially brass inserts will mount wing spars rib position angled tail root ribs should exactly match angle airfoil-shaped blocks cabin sides certain exact alignment brass tubes wing fuselage following procedure will helpful step completed before adding balsa sheeting wing bottom surface fuselage blocked up invert ed position wings plugged music wire alignment pins have proper dihedral angle ing held firmly position tapered balsa blocks epoxied above below brass tubes fill gaps between tube front spars Tapered blocks also used rear spars epoxied spar front surfaces plywood gusset plates balsa blocks between rear spars added wing bottom surface will left un covered between first two ribs between spars servo access cover area made 010 aluminum held place small wood screws few places model deviates true-scale appearance Aeronca K has friese-type ailerons hinges located below aileron sur face aileron nose leading edge dips below lower wing surface alleron raised banking turn 30 Model Aviation Left Fuselage construction begun basic A-frame 1/4 sq balsa lower longerons crosapieces Above Trlanguiar uprights dlagonai bracing foliow pattern fuli-size Aeronca K fuselage form basic skeleton model Full-Size Plans Available. See Page 156 / EASERAS ELERCETIS ASS ES SEASliTin ECUE EAR ACELjLJLiIS SEAR EULSCSAS ______ EPTF-6 F-7 RUTS CIA MUSIC WIRE EET TIE- ICTA ALTIECCO UTTER COCELSASS PARASItERCAA CTR CABIN ElSE I, I ICAA ICE EALTA STRIESER _Ir IiIi\ AL PASSERS1C5 BARASCAC SESECT ASEAT U SCIE CIA ElECT COSEL/ SETACI TETUA SECTAERONCA K S EAR ISECTETRESETS principle portion dips down intended induce drag counteracts adverse yaw tendency airplane yaw direction opposite turn some doubt about effective ness friese ailerons model view shows drastic shape change occurs frontto rearof fuselage cabin sides paraiiei being some what narrower bottom top Aeronca supposedly true-scale air craft therefore necessary models aileron hihges actually metal-on-wood bearing surface concerned about unlimited life wear hinges would considered un Cabin roof rear triangie iower iongerons fiiied-in sheet baisa wing root baisa blocks shaped airfoli cemented sides August 1985 31 Li suitable have used wood surface bearings past though have found wear occurs metal part wood hinge will outlast model Wing struts model made scrap soft maple purchased pennies local furniture factory really easy carve streamlined shape excess material removed successive cuts table saw struts could made bass spruce very hard balsa strut ends made round brass rod holes drilled tapped brass machine screw screw silver-soldered brass rod screw head removed rod drilled axially fastening screw threaded end epoxy-cemented deep hole drilled strut end very permanent joint inner end rear strut made adjustable two pieces head removed No 10 brass screw hole bored down its center tapped No 6-32 thread epoxied strut end brass clevis has No 6-32 thread locked nut Turning clevis pro vides adjustment twist wing panel exactly same manner prototype adjustment can bless ing model tends turn flight neutral rudder ailerons Tail surfaces Aeronca thin flat airfoil shape Leading trailing edges smaller diameter tub ing hinge line model sand balsa edge material simulate smaller diameter especially along tralling edge prototype connec tion stabilizer fuselage means telescoping tubes exter nal wire bracing principal support models stabilizer halves support ed similar manner tubes music wire pins inner end func tional streamlined steel wires carry load outer extremities stabilizer tubes must exactly match plywood stabilizer keel fuselage Tubes keel length shown sheet 1 drawings tube ends will just touch stretched fabric fuselage sides must exactly parallel viewed vertically horizontally wing mounting Parallelism can checked dimensionally inserting 1-ft lengths %2-in music wire keel tubes before freezing position CyA stabilizer halves assembled short music wire pins blocked position tubes epoxy-cemented sequence assures alignment stabilizer can freely inserted over pins final assembly binding model brace wires actually hold stabilizer halves tightly against fuselage As shown drawing sheet 1 /1/I/B BALSA f/Il H B BALSA IEOBE SOEBYAT TOP ABA BOTTOM V -_ 11 I/B BALSA11BETWEEN 2RBS -ffi ~~~1~~~ I/B S S/B BALSA Ii I/IA PLYROOS I/B B I/A BALSA AILEBOB BELCBABB 0/02 PLY 3/IA DEWY F/ 3/32 MUSIC WIRE Z DIHEDRAL lB2 3/320 BRASS TUBE EPOXY B ALIABMENT WITH 804 __STABILIZER KEEL /4 55 BALSA ELEVATOR BORN 0/SO BALSA 0/IB 01/4 BALSA BALSAWITH S LOTTEDI EBBS/4 B B/IN BALSA I/HO 3/B BARS BALSA I/IA BALSA EDGE OVEBLAB brace wires made music wire two different diameters soldered together board prevent warping sanded burnished steel wool bring polish appear ance stainless steel Solder least 50% tin content will provide best finish Ends central music wire 0/SO BALSA soldered brass devises pinned brackets mount tail surfaces melting solder devises wires can adjusted length make quite tight after assembly model Clamp heat sink polished portion wire avoid melting 32 Model Aviation Full-Size Plans Available. See Page 156 T I,I..~~ II I~4...----i4- zzzz. [v32][b-1-10-1-10]] VB 00 BRASS TUBE ROSB 0 3/B SCREW DOUBLE SIZE VIEW OF AILERON HINGE I. 5/32 03/B SPRUCE TRAILING EDGE AILERON HINGE RIB HINGE RIB I/H OGUAFA SPRUCEI/B BALSA FILLER SPARSOVER SPURS TOP BOTTOB I/B PLYWOOD I/H BASSWOOD I/IS SIA MUOC WIRETECH B/C TITAN AILERON P000000I/ISPLYWOODSEHOS SHOWN I/H5G UPRUCESAG BALSAI/H PLYSROOS SPARS BE VS LEO IS 0 o -H-----$----------L----I-- --m-----------.., AILE BRA BELCBANS I/IS R/CWOOU MB GA DOWEL I/IS GA BASE WISE YHBAISAE IS PLYWOOS IS PLYWOOW AL HORN S/H BALSA SECT BALSA -I/H BALSA 1/2 55 BALSA BEVELED SECT C NI/B PLOHOOD AUSSET 010 ALUMINUM COUCH BUTTON IS OPES BETWEEN FIHST TWO RIBS 5/B 55 BASSWOOD I/B PLYWOOD 5/IS SO BASSWOOD 1W PLYWOOD ISI2345 INSIDE/SECD I/B 00 ALUM5/52DIAMETER BBASS TUBE EPOST BETWEEN I/H BALSA WEDGE TUBEBLOCAS IN ALIGNMENT WITH MUSIC WIBE PINS SUOWN ON SHEET 2 SO ______STRUT ATTACHMENT BRACKETMAINTAIN DIHEDRAL DIMENSION 031 ALUMINUMWHILE EPOXY HARDENS S/B SIAAILERON HISS- I/B BALSA 5/IS ALOMBIUM STREAMLINEDTUBE N RIB -I/B BALSACUT ID BINS FOR AILERON 1/2 DIA 3/IS SIAS/IS DIA 5/52 ALUM TUBE RACE ET3/DO BALSA ROOT RIB I/H HARD BALSA I/H DIA 015 BBASS CLAMPND SOLIDRO DBILLNO HO LONG DRILL HINGE RIB- I/IS PLYWOUDAILERON IMISE RIB- I/IS PLOWOUS 3/32 BALSAFRONT STRUT ENDS- I/H DIA BRAGS -SILVER SOLDER TO NOR-3D THREADED ROD - EPOSY ISTS STRUT //AERONCA K 052 ALOB PLATEMV BAR WISCRER EPSOT PLATE IN SLOT CLEVIS WITH NO H-SD THBEAS ROD-BRASS BRASS TUBE-TAP 5-52 EPOUTSHEETS CoverIng material Aeronca Sig Koverall producing very scalelike finish particularly well-suited making fabric fillets small dor sal fin front edge landing gear fairings wood surfaces will come contact covering material given three coats heavy dope fuselage sides toP fin covered two pieces Koverall side joined top stringer bottom separate piece though would have small challenge have included side pieces small heat sealing tool set medium heat used shrink Koverall smooth cover fillets formed special effort Sig recommends nitrate clear dope However brushed three coats non-tautening butyrate stead5 can see no ill effects Koverall already tight dope applied Simulated rib stitching made Wilhold R/C-56 glue applied August 1985 33 -I/H 0G SPRUCE SPARS- BESELED -IIS PLYWOOD PAIRLEASS FOR AILERON PUNOROUS Left Stringers added sides top framework fitted notches tail post added rear diagonal bracing provides rigidity point fuseiage weighed 14 oz Right plywood stabilizer keel cemented iiace brass tubes stab support Ply balsa gussets strengthen tail post very light model slightly nose-heavy 1 Left m plywood nose sub-structure engine mount ianding gear gruuved supports place Use epoxy cement area maximum strength Right Bottom view cover removed show landing gear mounting Aluminum clamps se cure gear grooves shockabsorbing landing gear helps keep model bouncing being damaged rough landings throttle servo wire routed beneath cabin floor keep interior iooking neat Au photos author over wing tail surface ribs wear points fabric such ribs stringers leading edges trailing edges longerons covered pinked tape material used selfadhesive 3M Hair Setting Tape purchased drug store Its serrations bit too large strictly scale size static judging class competition done distance finer serra tions would visible tape given coat clear dope additional coat clear butyrate mixed aluminum powder sprayed before two coats yellow butyrate standard color factory Loening Yellow color commonly found today used Randolphs Lockha yen Yellow convenient substitute Loening Yellow tinge green slightly different Lockhaven enhance appearance inside cabin door also covered painted fiberglass nose-bowl formed over plug blue insulation styrene foam sanded shape slightly undersize coated vinyl spackling com pound protect foam polyester resin followed Several layers 6-oz fiberglass cloth impregnated poly ester finishing resin laid over plug final layer lighter cloth finer weave used screwdriver digging tool remove foam plug Coarse sandpaper removed last bits foam smoothed interior Remov ing foam simple task matter minutes Dont believe stories about dissolving foam gasoline dope thinner wastes expensive thinner hazardous leaves sticky mess cleaned out bowl afterward Detailing Door hinges brass butt-type came hobby shop carried line doll house supplies A2-scale nearly correct size quarter-scale airplane same shop also tiny piano hinges elevator trim tab Aeronca acrylic Plexiglas windshield afld Continued page 119 34 Model Aviation Upper portion tubular ianding gear has brazed bronze brazing rod angled joints also points rear brace meets tubing windshield form aluminum litho plate stapled biock Note change shape round semi-rectangular rounded corners Hints obtaining kind shape contained text dJ& ROBERTS f last tip own transmit ter switches dual rate mixers ser vo reversing etc comes Guy Wire newsletter Daytona Beach RC Association editor Bill Brad ford month club president Steve Searle Jr has Message Left Seat first page April 1985 issue message concerns safety included preflight check list Item No 3 list DOUBLE CHECK bells whistles transmitter before flying Youd sur prised reports Ive seen crashes caused inadvertent switching bells whistles switches Dont humans makes error month Have safe John Preston 12235 Tilden wood Dr Rockville MD 20852 Aeronca K/Wischer Continued page 34 skylight window drape-formed over aluminum sheet forms made printers litho plate plastic laid across form balanced along its centerline placed pre-heated oven 250 0F Rt 2 Box 2547 La Grande OR 97850 503- 963-0596 VISA Welcome VERY FINEST QUALITY MATERIALS SUPERIOR MACHINE FINISHED PARTS SUPER CLEAN FLYING AIRPLANES FAST BUILDING ENJOYABLE ASSEMBLY forming takes minute two Remove form oven wait another minute cooling plas tic retains shape prefer cut plastic its final shape after forming Use pattern shown drawing determine beforehand whether will fit fuselage Make corrections neces sary make new pattern before cut ting precious windshield blank doubt about exact bent shape windshield form use pattern cut dummy windshield aluminum sheet Bend dummy fit fuselage use shape form Thats extra step may save time end Flying Aeronca few air planes have built slightly noseheavy spite its long tall short nose moments No ballast has add ed flies very well its present balance condition shown drawing will perform tail-spin very well see no reason add tail weight model reluctant enter spin some extra weight would have required tail spin few aerobatic maneuvers K capable performing some concern anyone thinking com petition full-size plane no ballof-fire could perform simple loop split-S wing-over spin Elevator travel measured FIRECAT SPAN 577 ENGINE 35 50 CLASSY LOW WING BEAUTY FLIES IN GROOVE EASY TO TRIM VERY AEROBATIC Also Available TOPCAT Span 577$5950 BI-CAT Span 478750 LASERCAT Span 547450 Dealer Inquiries Invited model 1% up 1% down extra down-motion result elevator horn being swept forward clearance reasons isnt required flight Down-elevator rather useless control Scale models aileron travel 1 in direction could increased bit possibly 1 Rud der travel maximum allowable 3 in direction dimension rudder comes very close touching elevator Wheels Aeronca quite far ward effect landings tendency bounce three-pointer attempted under ideal conditions cer tain bounce-free landing bring bit fast land main wheels also applied flying full-size ship although expected make landing three-pointer during train ing Takeoff requires very little rudder narrow landing gear crosswind takeoff landing can quite adven ture Its best lined up directly wind No model have ever built easier fly highly detailed three-view documen tation drawing Aeronca K NC 19345 license number available 44th-scale Paul Matts Historical Aviation Album Price $500 postpaid Drawing number 15-103-A competition document pur Continued page 122 GIANT TEST STAND recent development large 60 1 6 two cycle four cycle engines has created demand durable heavy duty engivetesting stand newtest stand cast aluminum will become softand oil soaked wood test stands often OCAST IN ALUMINUM FOR STRENGTH DURABILITY AND ENGINE HEAT DISSIPATION SWIDE MOUNTING BASE SUPPORT SADJUSTABLE ENGINE SUPPORT BASES WILL HOLD MOST ENGINES FROM 12 DOWN TO 1/2A S HEAVY DUTY LUG PRESSURE PADS STEEL ENGINE RESTRAINING PINS No 51617SMOUNTING SCREWS INCLUDED AT MOST HOBBY SHOPS OR ORDER DIRECT a aa Send 100 13 page illustrated catalog August1985 119 it- Ai Safety Preston Continued page 20 Schlueter Free Flight Models 3508 Poinsettia Ave Manhattan Beach Ca 90266 Dealer Inquiries Invited 0 S PACIEiC ACE BLACK BULLET PARTIAL KITS plans &printed wood PACIFIC ACE BLACK BULLET 2O$3253O$47O 40T665ADD S2OO SHIPPVJGPOREACHITO3 KIT ORDERCA RES ADO 6I TAX poses drawing should changed show less aileron rib As indicated construction drawing aileron ribs arent line wing ribs small change possibly Paul Matt can convinced correct original art work sketches Aeronca made modeling purposes 1941 contain accurate measurements wing aileron rib spacing positions Pauls address Historical Aviation Album PO Box 33 Temple City CA 91780 RC Scale/Wischers Continued page 43 planes weight seven pounds past Roger Brennom has won first places Stand-off Scale Nats Toledo Northrop P-61 Black Widows has built series MFG OF NI-STARTER $2995 Charger PLEASE SPECIFY WHICH CHARGER WHEN ORDERING newest P-61 entered Precision class because increase exterior detail new model electricallyoperated retracting landing gear weight 25 lbs 05 90 engines eight-foot-span night fighter fits Giant Scale class Hal Parentis new Savoia-Marchetti SM 79 trimotor Italian bomber intend ed FAI competition conten tion against such airplanes Saugers Stinson Skip Masts Hercules Savoia uses three 05 25 engines weighs 125 lbs Finish combination FabriKote silk K&B epoxy Hals ability old-time Pattern flier secret weapon competition wars Several planes built kits displayed among scratch-built Preci sion class models Ed Wisser returned another DH Tiger Moth Bud Barkley kit A-scale During construc tion finishing Ed worked closely lady owner restorer full-size airplane subse quently killed crash Moth TORK-STARTER revolutionary concept power iSV glow plugs model cars boats end air planes using glow fuel engines TORK-STARTERITMI has steel wrench strong enough reduce compression easier starting supplies power doing comes new CI1O charger has LED indicate unit charging also has removable T handle can used Torque amplifier Over 50 consecutive starts full charge rechargeable hundreds times Clips onto plug positive connection Send ad along pre-payment receive free shipping handling 12421 Ransom Dr Glenn Dale MD 20769 L TORK-STARTER $29 95 Charger 11 OV 220V 1 2V Fast Charger $2095 Without Charger CHARGERS $1295 Charger Only 11 OV 220V 1 2V Fast Charger 301 464-2260 Another kit-built model John Revel bs Cessna L-19 Bird Dog using OS 120 Gemini twin model originated Circus Hobbies kit Stand-off Scale classes produced array quality aircraft some sur prises Non-Military group winner 1928 Heath Super-Parasol equipped Saito four-stroke FA 120 large model 35o scale 104-in wingspan followed full-scale practice great extent example external aileron cable controls faithfully reproduced working order Only exposed Saito engine relegated Heath Stand-off class second place German primary glider built Jeff Troy Surrounded soaring gliders model hardly seemed contention prize constructed follow full-scale fabrica tion possible respect controls through cables exposed view fuselage primary glider-type machine exposed skeleton models framework authentic laminatedform wooden members competition against some rather astoundingly impres sive Giant Scale entries gliders high placing real surpriseand welldeserved Military Stand-off Scale winner finely-camouflaged Fiesler Storch again small model among giants displayed built Jim Suchy 70-in span model wasnt really small ex cept comparison its competitors featured working slats flaps original STOL aircraft Jim built model Dennis Bryant drawings available US Bob Holman Plans Operational slats seldom seen models second place Frank Hoffer German WW Albatross D III small airplane wingspan 59 almost hidden overwhelming mass larger display craft Frank Toledo regulars has something new exhibit year mostly WW vintage out-ofordinary Keith Shaw electric-power enthus iast previously shown Spitfire TICK OFF TIMER Now Available 0-20 Seconds Fuel shutoff Flood Off Auto rudder function Weight % oz Fuel line included EXTRA FUEL LINE TUBINGSO- ft DIRECT ORDER ONLY Send Cash Check MO $3 extra Calif 6% JOHN TATONE 62 BELHAVEN AVE DALY CITY CA 94015 Limited supply 122 Model Aviation Aeronca K/Wischer Continued page 119

NO OCR TEXT NO OCR TEXT simple yellow black color scneme OT tne proorype gives moasi great VISIDIIITY say ana ii easiest dupiicate werent piiot figure wouid very difficuit indeed teii what see fuii-size version modei OS Gemini 120 twin proved wise choice K its 12-lb weight Power adequate normal climb maneuvers new OS 160 twin could also used its overall dimensions nearly identical 120 Flying Aeronca high altitude Reno Nats could have used extra power 160 Under ordinary flying circumstances 120 four-stroke either single twin cylinder sufficient Because Aeronca light weight flies quite slowly 120 engine no need special highenergy servos servos used Tech RC Titans 38 in-oz output torque has no problem control surface travel servo large ailerons assures full travel Mounting servos near wing root shortens extension cord Y-shaped exhaust pipe brass tubing sliver soldered tothe stub exhausts Gemini combination aircisanerand carburetor heateronthepipebecomesa muffleronthe modei piane much exquisite de taii niceiy compiimented scaisilke appearance four-stroke Gemini Twin passes upward behind cabin rear bulkhead over cabin roof Y connection cord becomes part airplane structure Cabin interior quite compiete controi whesis push-pu ii throttie strument panei visibie hinges doorwere fordoli houses butworkweii 24 Model Aviation nougul viewi ,1rutattachmentto fuselage unuws wing-warp adjust ment setup rear strut func tional modei great heip trimming Aileron servos iccated wing roots hooked receiver Y connection An aiuminum access panei can removed service servo Left The 05 GeminI 120 engIne appears have made tar Aeronca K crankcase has shrouded tapered aluminum tube simulate Aeronca engines shape Right halt-dozen tins beneath Gemini turther disguise Aeronca E-113C Left The seat belt ana meatner-covered seat Vi5iDl through open door inside surtace tabric covered Note door latch Right sefvos tor rudder elevator completely hidden seat can reached through large cabin door Left Rib stitching rib tapes aileron horn strut brackets Inspection covers shown bottom view ot right wing Right small tabric tiliet top ot landing gear talring true scale natural shape taken covering buried beneath covering fabric Elevator rudder servos located beneath cabin seat receiver battery throttle servo mounted just behind engine short length flexible pushrod carburetor An extension cord servo passes beneath cabin floor receiver manner RC equipment hidden view cockpit can completely finished controls instru ment panel seat basic fuselage structure fullsize model triangular truss faked out formers stringers triangular cross section first used Aeronca C series K subsequent Chief Champion air planes Nose substructure cabin sides model plywood strength Construction The following steps recommended proper assembly se quence Begin fuselage structure August 1985 25 Left Working shock absorbers within landing gear legs operating scissors functional realistic details text alec describes aftemate methods wish invest time construct Right Taii surfaces braced functionai streamilned wires fastened surfaces miniature hexagonai screws License number authors fuli-size K Left The windshield fastened prototype aiumlnum strips rows 0-80 00-90 machine wood screws Dowei intemai fuseisge bracing represents steel tubing cabin Right Wings heid aiignment music wire pins shown extending tube guides Aiieron servo connector extension cord hidden cabin roof Note aluminum frames around windshield side window edges Au istypicai detaiiing shouid strive contest worknot necemryto just have fun Left The acrylic Plexiglas skylight fastened prototypical manner aluminum framework Aluminum strips cover fuse lage-to-wing joint Right dummy control horn adds realism Note view aileron ribs aligned wing ribs building basic A-frame lower longerons crosspieces differs usual method building-up joined sides necessary because fuselage cross section changes drastically front rear triangular upper structure added vertically above A-frame formers cabin floor added Plywood cabin sides cut out framing balsa added external surfaces two birch dowels drilled axially brass tube inserts will mount wings Cabin sides assembled tubes through sides alignment sub-assembly set loosely A-frame blocked certain angular equality direc tions Use thin cyanoacrylate CyA ce 26 Model Aviation N % N 3/16 BALSA N 1/16 DIA NUSIC WIRE AILERON PUSHROD /8 BALSA FILLER NOVER SPARS TOP B BOTTOM 1/4 SQUARE SPRUCE SPARS BOB WISCHER AERONCR K - 5/32 X 3/8 SPRUCE TRAILING EDGE 3/16 X 1/4 BALSA STRINGERS 1/4 BALSA CABIN ROOF 1/8 BALSA /4 SQUARE BALSA 3/32 PLYWOOD 3/32 BALSA /16 BALSA EDGE OVERLAY & 1/4 SQ BALSA 3/32 BALSA 1/4 SQ SPRUCE SPARS- BEVELED /2 SQ BALSA- BEVELED LEADING EDGE /4 SQ BALSA 3/16 X 1/4 BALSA WITH SLOTTED ENDS ALL FORMERS 1/8 BALSA FRONT COWL 010 ALUMINUM 120 TWIN ENGINE FIBERGLASS NOSE-BOWL ED OVER FOAM PLUG BOTTOM COVER 9 010 ALUMINUM 4130 STEEL TUBE 437 OD 028 WALL 3/8 BALSA CABIN REAR BULKHEAD 1/B BALSA 1/8 BALSA 1/4 SQ BALSA STRUT ATTACHMENT BRACKET 031 ALUMINUM REAR STRUT- MAPLE WING STRUT AND LANDINGFRONT STRUTMAPLE GEAR BRACKETS RIB I/B BALSA3/16 DOWEL AlL CENTER HINGE SUPPORT LANDING GEAR FAIRING 010 ALUMINUM 4 OR 45 SMOOTH TREAD TIRES 015 BRASS CLAMP ment freeze joints dowel ends bottom cabin sides meet A-frame Before removing supporting blocks add balsa cabin roof rear triangular bracing join sides A-frame structure fuselage has now become rigid assembly can handled addi tion A-in balsa stiffeners top area along lower longerons Air foil-shaped blocks YB-in balsa now cemented together form angle shown fuselage top view assembled cabin sides stringers tail post plywood stabilizer keel added next followed fin ribs leading edge plywood nose sub-structure assembled unit cemented inside edges fuselage front epoxy basswood gusset strips sides will act alignment fixture cementing balsa floor nose section next sequence followed formers plywood cowlings rear landing gear support Landing gear order complete fuselage steel tube landing gear needed next decision needs made point regarding shock-absorb ing feature landing gear simpli fied non-shock gear shown anyone prefers evade extra labor tubing used aircraft quality 4130 chrome-molybdenum steel tub ing wall thickness 035 would suitable avoid necessity elabo rate fixturing brazed joints tube should notched rather cut through completely tube bent held together remaining metal proper angle gap closed nearly Braze bronze rod will fill gaps joint used Tuf-Grind AC-4 wheel Dremel grinder cut notch could also done hacksaw %2-in music wire brace also brazed main gear paying particular attention difference level two parts shown drawing sheet 1 landing gear can now set its grooved supports metal clamps fabricated secure place Balsa fair ing support blocks tack-cemented gear legs gussets added anchor blocks nose sub-structure Once fairing blocks located final position landing gear can removed breaking tack-cemented joints landing gear can now complet ed Lower legs also made aircraft steel turned down slide fit inside upper legs spring wound 055 music wire standard size hobby shops carry K&S line products some areas local Ace Hardware Stores also have wide selec tion ready-made springs pair can chosen will support 12-lb airplane spring should have load about 6 lb deflection R BALSA CABIN ROOF H5j__ LB BALSA N INOTCH FOB AlL SERVO LEAD WIRE 3HR BALSA / SS2 PLYWOOS / F-S lSt PLYWOOD S ROLE SCREWORIVER ACCESS ________________TO TITAN THROTTLE SERVO o0Z BALSACBLISS NOES F-I FOELSTDRPHOLEtifi NOR~FFzz POINTII ROTSFS INO 0112 BALSA ____ OIOD PLO ENGINE MDSRHTF-IAS/ LAMINATE TIWEE LAYERSItO SD BALSA 112 50 BALSA FINE NEROL-17/I SCREEN1 BIRCH SUWELICH BRACELIC AERONCA COMSNATIDNFIB RALASS NODE BOWL AIB CLEANER ABS FOBBES OVER FOAM P500 AM HEATER BAFFLER ON NOVEL S 540 ALUMINUM CLAMP 114 BALSA \\ \\\\\ VOD ALUMMAM BINS STROT ABS LANSINO I BOTTOM COVER OIO ALUMISIDA 0 OS SMOOTH TREAS TIRES\\\\\\\ Brass plugs low-temperaturesoldered spring ends No brazing heat will alter music wire no longer spring machine screw top secures spring lower leg upper leg brass blocks scissors subject abuse hard landings should brazed position alternate landing gear consists 4130 tubing longer legs either type short tube brazed lower end accept %2-in music wire stub axle reasoned hard landing could bend wire should easily replaceable soft-soldered tube An simple landing gear could formed single piece bent Y16-in dia rod However some hazard damage landing gear fairings due deflection type gear hard landing tie rod 28 Model Aviation Full-Size Plans Available. See Page 156 001 ALUMINUM MACRET /MUSE WIRE DIAMETERS FOR STAB BRACE WWEO Ii PER/ STREAMLINES STEEL STABILIZER BRACE WIRES 094 WIDE DAT TRICK MULTIPLE SOLDERED MUSIC WIRESSLOTTO BREMEL ABRASIVE DISC LOWERA BRASS CLEVIS TABILIZER Vzzz/BRUCE WRE SECTORS 0 TIMES SIZE SOLDER SANDED /SYDA 010 MUSIC WIREBBS BARNISRED WITS STEEL WOOL TO SIMULATE STABILIZER ROASTSPOLISHED STAINLESS STEEL IItOD SLURINAM TAME CRIMPED TISOTLY 7 -ItS PLOWOOS RUDDER BOSS 018 CIA MAIMED STEEL CABLE VSO 15 MUSS TAME ASS LOSS 3V5Z LU BRASS TARE STABILIZER KEEL SVSZ PLTWOOO 015 BALSA EDUE OVERLAT __________________BINDOBIELD PATTERN 051 PLESISLAS / — . 7________ F- 8/ APPEB COWLIiI lUST PLTWOODI A[AS OS BALSA FOVIR B IUO BULSAITO BALSAK BSTRINGERS A7 ~iIIl iIII ALSA 4SUAABE BALSAvsZ PLTRSOD__rr r ITO SOI _____________________BALSASTABILIZER44SILVER SOLDER MACE WIRE to4BALSABASSETjliOlA_____ ATELASS 0DM TORE 001 BRASS UTLII USA BASIC TED 0flHY MERE BLYUSC ALAMOSUM BRACKETS TB 05 BRASS TUBE110 BRASS 001 BRASS PLATES/TUBE 450 STEEL TAMETURNS TAL WBEEL TILLER BAR 500 SD OS BALLAND FOLD SAWN OTiB S ITO TAPERED STRISSER US EDETEBIANESILVER SOLDER ASSEMBLYO4SALAMINAB B RE LUSSIRS SEAR BRACEBRAZES JOINT lUBE BRONZE RODITAIL WHEEL FORK STO U 110 BALSA RIBS I 6 BOOSSBO 050 SCREW LOWER PHINS PLUSSPRIIS CR8 MASS ASSMERE APPROD/ OOH US/ // SAL SE B TA DIA STEELHISS STEEL TABE-MUSIC WIRES SALACRED AST OS SAR WALL STEEL LAS BRAZE TO STRUT BATBOC LSAAIKTERB TOO BUSRECIIMED TO HUB IBRARS ELDVBALTERNATE LANDINS SEARBLACKSNO H-AC ARE WITHOUT SABER STRATS RUSS MUSIC MERE-LOW TEMP RSLDER 0IA4SU II .iIIiIiIiiI IN LEVELSSO PLYWOOD - ~E-LOWERUPPER SO 301 IISI DBILL..-IIAHO LORNI DRILL SEISSSBS-OSJ ALAUBBJN AEREWA AERONCA K BODEL AND DRAWIBOS BT BOB WISEHER BINUSPAS 5 FEET BEISRT lIT LBS WIRU LOADINS 203 OZ PER SOFT SCALE ITO S"I FT hown across gear legs drawings s mostly cosmetic rigid tubing rear would become functional lecessity smaller diameter rod-type Lrrangement tube-type landing gear allows full-scale construction closely nglne Mount Gemini furnished vith aluminum radial mount cant e used Aeronca because its xcessive overall dimensions However didnRt wish subject engine mount ing lugs undue loads uneven tight ening mounting bolts wood surface chose mount engine 3A6-in aluminum plate worth addition prevent breaking lug horribly expensive over $60 crankcase rear housing Handle Gemini carefully though family jewels four-spar wings simple basic construction Spars spruce hard balsa acceptable substitute Front spars beveled match slope leading edge balsa sheeting table saw can used beveling angles 80 lower spar 170 upper Rear spars set beneath surface covering fabric will touch consequence small blocks fitted gaps above August 1985 29 NOTE ALISIRERT FUR I/B BA 0 SALESI NEGATIVE INCIMENCE Left Balsa farmers fill out shape Cyanoacrylate cement speedsup building time phases Right Plywood cabin sides have door opening right side window left plywood template used cutting wing ribs also shown Left Plywood cabin sides after theyve balsa framework cemented external surfaces Right cabin sides dowel wing supports have erected over fuselage framework cabin floor roof diagonal bracing have also added dowels represent tubing structure prototype will drilled axially brass inserts will mount wing spars rib position angled tail root ribs should exactly match angle airfoil-shaped blocks cabin sides certain exact alignment brass tubes wing fuselage following procedure will helpful step completed before adding balsa sheeting wing bottom surface fuselage blocked up invert ed position wings plugged music wire alignment pins have proper dihedral angle ing held firmly position tapered balsa blocks epoxied above below brass tubes fill gaps between tube front spars Tapered blocks also used rear spars epoxied spar front surfaces plywood gusset plates balsa blocks between rear spars added wing bottom surface will left un covered between first two ribs between spars servo access cover area made 010 aluminum held place small wood screws few places model deviates true-scale appearance Aeronca K has friese-type ailerons hinges located below aileron sur face aileron nose leading edge dips below lower wing surface alleron raised banking turn 30 Model Aviation Left Fuselage construction begun basic A-frame 1/4 sq balsa lower longerons crosapieces Above Trlanguiar uprights dlagonai bracing foliow pattern fuli-size Aeronca K fuselage form basic skeleton model Full-Size Plans Available. See Page 156 / EASERAS ELERCETIS ASS ES SEASliTin ECUE EAR ACELjLJLiIS SEAR EULSCSAS ______ EPTF-6 F-7 RUTS CIA MUSIC WIRE EET TIE- ICTA ALTIECCO UTTER COCELSASS PARASItERCAA CTR CABIN ElSE I, I ICAA ICE EALTA STRIESER _Ir IiIi\ AL PASSERS1C5 BARASCAC SESECT ASEAT U SCIE CIA ElECT COSEL/ SETACI TETUA SECTAERONCA K S EAR ISECTETRESETS principle portion dips down intended induce drag counteracts adverse yaw tendency airplane yaw direction opposite turn some doubt about effective ness friese ailerons model view shows drastic shape change occurs frontto rearof fuselage cabin sides paraiiei being some what narrower bottom top Aeronca supposedly true-scale air craft therefore necessary models aileron hihges actually metal-on-wood bearing surface concerned about unlimited life wear hinges would considered un Cabin roof rear triangie iower iongerons fiiied-in sheet baisa wing root baisa blocks shaped airfoli cemented sides August 1985 31 Li suitable have used wood surface bearings past though have found wear occurs metal part wood hinge will outlast model Wing struts model made scrap soft maple purchased pennies local furniture factory really easy carve streamlined shape excess material removed successive cuts table saw struts could made bass spruce very hard balsa strut ends made round brass rod holes drilled tapped brass machine screw screw silver-soldered brass rod screw head removed rod drilled axially fastening screw threaded end epoxy-cemented deep hole drilled strut end very permanent joint inner end rear strut made adjustable two pieces head removed No 10 brass screw hole bored down its center tapped No 6-32 thread epoxied strut end brass clevis has No 6-32 thread locked nut Turning clevis pro vides adjustment twist wing panel exactly same manner prototype adjustment can bless ing model tends turn flight neutral rudder ailerons Tail surfaces Aeronca thin flat airfoil shape Leading trailing edges smaller diameter tub ing hinge line model sand balsa edge material simulate smaller diameter especially along tralling edge prototype connec tion stabilizer fuselage means telescoping tubes exter nal wire bracing principal support models stabilizer halves support ed similar manner tubes music wire pins inner end func tional streamlined steel wires carry load outer extremities stabilizer tubes must exactly match plywood stabilizer keel fuselage Tubes keel length shown sheet 1 drawings tube ends will just touch stretched fabric fuselage sides must exactly parallel viewed vertically horizontally wing mounting Parallelism can checked dimensionally inserting 1-ft lengths %2-in music wire keel tubes before freezing position CyA stabilizer halves assembled short music wire pins blocked position tubes epoxy-cemented sequence assures alignment stabilizer can freely inserted over pins final assembly binding model brace wires actually hold stabilizer halves tightly against fuselage As shown drawing sheet 1 /1/I/B BALSA f/Il H B BALSA IEOBE SOEBYAT TOP ABA BOTTOM V -_ 11 I/B BALSA11BETWEEN 2RBS -ffi ~~~1~~~ I/B S S/B BALSA Ii I/IA PLYROOS I/B B I/A BALSA AILEBOB BELCBABB 0/02 PLY 3/IA DEWY F/ 3/32 MUSIC WIRE Z DIHEDRAL lB2 3/320 BRASS TUBE EPOXY B ALIABMENT WITH 804 __STABILIZER KEEL /4 55 BALSA ELEVATOR BORN 0/SO BALSA 0/IB 01/4 BALSA BALSAWITH S LOTTEDI EBBS/4 B B/IN BALSA I/HO 3/B BARS BALSA I/IA BALSA EDGE OVEBLAB brace wires made music wire two different diameters soldered together board prevent warping sanded burnished steel wool bring polish appear ance stainless steel Solder least 50% tin content will provide best finish Ends central music wire 0/SO BALSA soldered brass devises pinned brackets mount tail surfaces melting solder devises wires can adjusted length make quite tight after assembly model Clamp heat sink polished portion wire avoid melting 32 Model Aviation Full-Size Plans Available. See Page 156 T I,I..~~ II I~4...----i4- zzzz. [v32][b-1-10-1-10]] VB 00 BRASS TUBE ROSB 0 3/B SCREW DOUBLE SIZE VIEW OF AILERON HINGE I. 5/32 03/B SPRUCE TRAILING EDGE AILERON HINGE RIB HINGE RIB I/H OGUAFA SPRUCEI/B BALSA FILLER SPARSOVER SPURS TOP BOTTOB I/B PLYWOOD I/H BASSWOOD I/IS SIA MUOC WIRETECH B/C TITAN AILERON P000000I/ISPLYWOODSEHOS SHOWN I/H5G UPRUCESAG BALSAI/H PLYSROOS SPARS BE VS LEO IS 0 o -H-----$----------L----I-- --m-----------.., AILE BRA BELCBANS I/IS R/CWOOU MB GA DOWEL I/IS GA BASE WISE YHBAISAE IS PLYWOOS IS PLYWOOW AL HORN S/H BALSA SECT BALSA -I/H BALSA 1/2 55 BALSA BEVELED SECT C NI/B PLOHOOD AUSSET 010 ALUMINUM COUCH BUTTON IS OPES BETWEEN FIHST TWO RIBS 5/B 55 BASSWOOD I/B PLYWOOD 5/IS SO BASSWOOD 1W PLYWOOD ISI2345 INSIDE/SECD I/B 00 ALUM5/52DIAMETER BBASS TUBE EPOST BETWEEN I/H BALSA WEDGE TUBEBLOCAS IN ALIGNMENT WITH MUSIC WIBE PINS SUOWN ON SHEET 2 SO ______STRUT ATTACHMENT BRACKETMAINTAIN DIHEDRAL DIMENSION 031 ALUMINUMWHILE EPOXY HARDENS S/B SIAAILERON HISS- I/B BALSA 5/IS ALOMBIUM STREAMLINEDTUBE N RIB -I/B BALSACUT ID BINS FOR AILERON 1/2 DIA 3/IS SIAS/IS DIA 5/52 ALUM TUBE RACE ET3/DO BALSA ROOT RIB I/H HARD BALSA I/H DIA 015 BBASS CLAMPND SOLIDRO DBILLNO HO LONG DRILL HINGE RIB- I/IS PLYWOUDAILERON IMISE RIB- I/IS PLOWOUS 3/32 BALSAFRONT STRUT ENDS- I/H DIA BRAGS -SILVER SOLDER TO NOR-3D THREADED ROD - EPOSY ISTS STRUT //AERONCA K 052 ALOB PLATEMV BAR WISCRER EPSOT PLATE IN SLOT CLEVIS WITH NO H-SD THBEAS ROD-BRASS BRASS TUBE-TAP 5-52 EPOUTSHEETS CoverIng material Aeronca Sig Koverall producing very scalelike finish particularly well-suited making fabric fillets small dor sal fin front edge landing gear fairings wood surfaces will come contact covering material given three coats heavy dope fuselage sides toP fin covered two pieces Koverall side joined top stringer bottom separate piece though would have small challenge have included side pieces small heat sealing tool set medium heat used shrink Koverall smooth cover fillets formed special effort Sig recommends nitrate clear dope However brushed three coats non-tautening butyrate stead5 can see no ill effects Koverall already tight dope applied Simulated rib stitching made Wilhold R/C-56 glue applied August 1985 33 -I/H 0G SPRUCE SPARS- BESELED -IIS PLYWOOD PAIRLEASS FOR AILERON PUNOROUS Left Stringers added sides top framework fitted notches tail post added rear diagonal bracing provides rigidity point fuseiage weighed 14 oz Right plywood stabilizer keel cemented iiace brass tubes stab support Ply balsa gussets strengthen tail post very light model slightly nose-heavy 1 Left m plywood nose sub-structure engine mount ianding gear gruuved supports place Use epoxy cement area maximum strength Right Bottom view cover removed show landing gear mounting Aluminum clamps se cure gear grooves shockabsorbing landing gear helps keep model bouncing being damaged rough landings throttle servo wire routed beneath cabin floor keep interior iooking neat Au photos author over wing tail surface ribs wear points fabric such ribs stringers leading edges trailing edges longerons covered pinked tape material used selfadhesive 3M Hair Setting Tape purchased drug store Its serrations bit too large strictly scale size static judging class competition done distance finer serra tions would visible tape given coat clear dope additional coat clear butyrate mixed aluminum powder sprayed before two coats yellow butyrate standard color factory Loening Yellow color commonly found today used Randolphs Lockha yen Yellow convenient substitute Loening Yellow tinge green slightly different Lockhaven enhance appearance inside cabin door also covered painted fiberglass nose-bowl formed over plug blue insulation styrene foam sanded shape slightly undersize coated vinyl spackling com pound protect foam polyester resin followed Several layers 6-oz fiberglass cloth impregnated poly ester finishing resin laid over plug final layer lighter cloth finer weave used screwdriver digging tool remove foam plug Coarse sandpaper removed last bits foam smoothed interior Remov ing foam simple task matter minutes Dont believe stories about dissolving foam gasoline dope thinner wastes expensive thinner hazardous leaves sticky mess cleaned out bowl afterward Detailing Door hinges brass butt-type came hobby shop carried line doll house supplies A2-scale nearly correct size quarter-scale airplane same shop also tiny piano hinges elevator trim tab Aeronca acrylic Plexiglas windshield afld Continued page 119 34 Model Aviation Upper portion tubular ianding gear has brazed bronze brazing rod angled joints also points rear brace meets tubing windshield form aluminum litho plate stapled biock Note change shape round semi-rectangular rounded corners Hints obtaining kind shape contained text dJ& ROBERTS f last tip own transmit ter switches dual rate mixers ser vo reversing etc comes Guy Wire newsletter Daytona Beach RC Association editor Bill Brad ford month club president Steve Searle Jr has Message Left Seat first page April 1985 issue message concerns safety included preflight check list Item No 3 list DOUBLE CHECK bells whistles transmitter before flying Youd sur prised reports Ive seen crashes caused inadvertent switching bells whistles switches Dont humans makes error month Have safe John Preston 12235 Tilden wood Dr Rockville MD 20852 Aeronca K/Wischer Continued page 34 skylight window drape-formed over aluminum sheet forms made printers litho plate plastic laid across form balanced along its centerline placed pre-heated oven 250 0F Rt 2 Box 2547 La Grande OR 97850 503- 963-0596 VISA Welcome VERY FINEST QUALITY MATERIALS SUPERIOR MACHINE FINISHED PARTS SUPER CLEAN FLYING AIRPLANES FAST BUILDING ENJOYABLE ASSEMBLY forming takes minute two Remove form oven wait another minute cooling plas tic retains shape prefer cut plastic its final shape after forming Use pattern shown drawing determine beforehand whether will fit fuselage Make corrections neces sary make new pattern before cut ting precious windshield blank doubt about exact bent shape windshield form use pattern cut dummy windshield aluminum sheet Bend dummy fit fuselage use shape form Thats extra step may save time end Flying Aeronca few air planes have built slightly noseheavy spite its long tall short nose moments No ballast has add ed flies very well its present balance condition shown drawing will perform tail-spin very well see no reason add tail weight model reluctant enter spin some extra weight would have required tail spin few aerobatic maneuvers K capable performing some concern anyone thinking com petition full-size plane no ballof-fire could perform simple loop split-S wing-over spin Elevator travel measured FIRECAT SPAN 577 ENGINE 35 50 CLASSY LOW WING BEAUTY FLIES IN GROOVE EASY TO TRIM VERY AEROBATIC Also Available TOPCAT Span 577$5950 BI-CAT Span 478750 LASERCAT Span 547450 Dealer Inquiries Invited model 1% up 1% down extra down-motion result elevator horn being swept forward clearance reasons isnt required flight Down-elevator rather useless control Scale models aileron travel 1 in direction could increased bit possibly 1 Rud der travel maximum allowable 3 in direction dimension rudder comes very close touching elevator Wheels Aeronca quite far ward effect landings tendency bounce three-pointer attempted under ideal conditions cer tain bounce-free landing bring bit fast land main wheels also applied flying full-size ship although expected make landing three-pointer during train ing Takeoff requires very little rudder narrow landing gear crosswind takeoff landing can quite adven ture Its best lined up directly wind No model have ever built easier fly highly detailed three-view documen tation drawing Aeronca K NC 19345 license number available 44th-scale Paul Matts Historical Aviation Album Price $500 postpaid Drawing number 15-103-A competition document pur Continued page 122 GIANT TEST STAND recent development large 60 1 6 two cycle four cycle engines has created demand durable heavy duty engivetesting stand newtest stand cast aluminum will become softand oil soaked wood test stands often OCAST IN ALUMINUM FOR STRENGTH DURABILITY AND ENGINE HEAT DISSIPATION SWIDE MOUNTING BASE SUPPORT SADJUSTABLE ENGINE SUPPORT BASES WILL HOLD MOST ENGINES FROM 12 DOWN TO 1/2A S HEAVY DUTY LUG PRESSURE PADS STEEL ENGINE RESTRAINING PINS No 51617SMOUNTING SCREWS INCLUDED AT MOST HOBBY SHOPS OR ORDER DIRECT a aa Send 100 13 page illustrated catalog August1985 119 it- Ai Safety Preston Continued page 20 Schlueter Free Flight Models 3508 Poinsettia Ave Manhattan Beach Ca 90266 Dealer Inquiries Invited 0 S PACIEiC ACE BLACK BULLET PARTIAL KITS plans &printed wood PACIFIC ACE BLACK BULLET 2O$3253O$47O 40T665ADD S2OO SHIPPVJGPOREACHITO3 KIT ORDERCA RES ADO 6I TAX poses drawing should changed show less aileron rib As indicated construction drawing aileron ribs arent line wing ribs small change possibly Paul Matt can convinced correct original art work sketches Aeronca made modeling purposes 1941 contain accurate measurements wing aileron rib spacing positions Pauls address Historical Aviation Album PO Box 33 Temple City CA 91780 RC Scale/Wischers Continued page 43 planes weight seven pounds past Roger Brennom has won first places Stand-off Scale Nats Toledo Northrop P-61 Black Widows has built series MFG OF NI-STARTER $2995 Charger PLEASE SPECIFY WHICH CHARGER WHEN ORDERING newest P-61 entered Precision class because increase exterior detail new model electricallyoperated retracting landing gear weight 25 lbs 05 90 engines eight-foot-span night fighter fits Giant Scale class Hal Parentis new Savoia-Marchetti SM 79 trimotor Italian bomber intend ed FAI competition conten tion against such airplanes Saugers Stinson Skip Masts Hercules Savoia uses three 05 25 engines weighs 125 lbs Finish combination FabriKote silk K&B epoxy Hals ability old-time Pattern flier secret weapon competition wars Several planes built kits displayed among scratch-built Preci sion class models Ed Wisser returned another DH Tiger Moth Bud Barkley kit A-scale During construc tion finishing Ed worked closely lady owner restorer full-size airplane subse quently killed crash Moth TORK-STARTER revolutionary concept power iSV glow plugs model cars boats end air planes using glow fuel engines TORK-STARTERITMI has steel wrench strong enough reduce compression easier starting supplies power doing comes new CI1O charger has LED indicate unit charging also has removable T handle can used Torque amplifier Over 50 consecutive starts full charge rechargeable hundreds times Clips onto plug positive connection Send ad along pre-payment receive free shipping handling 12421 Ransom Dr Glenn Dale MD 20769 L TORK-STARTER $29 95 Charger 11 OV 220V 1 2V Fast Charger $2095 Without Charger CHARGERS $1295 Charger Only 11 OV 220V 1 2V Fast Charger 301 464-2260 Another kit-built model John Revel bs Cessna L-19 Bird Dog using OS 120 Gemini twin model originated Circus Hobbies kit Stand-off Scale classes produced array quality aircraft some sur prises Non-Military group winner 1928 Heath Super-Parasol equipped Saito four-stroke FA 120 large model 35o scale 104-in wingspan followed full-scale practice great extent example external aileron cable controls faithfully reproduced working order Only exposed Saito engine relegated Heath Stand-off class second place German primary glider built Jeff Troy Surrounded soaring gliders model hardly seemed contention prize constructed follow full-scale fabrica tion possible respect controls through cables exposed view fuselage primary glider-type machine exposed skeleton models framework authentic laminatedform wooden members competition against some rather astoundingly impres sive Giant Scale entries gliders high placing real surpriseand welldeserved Military Stand-off Scale winner finely-camouflaged Fiesler Storch again small model among giants displayed built Jim Suchy 70-in span model wasnt really small ex cept comparison its competitors featured working slats flaps original STOL aircraft Jim built model Dennis Bryant drawings available US Bob Holman Plans Operational slats seldom seen models second place Frank Hoffer German WW Albatross D III small airplane wingspan 59 almost hidden overwhelming mass larger display craft Frank Toledo regulars has something new exhibit year mostly WW vintage out-ofordinary Keith Shaw electric-power enthus iast previously shown Spitfire TICK OFF TIMER Now Available 0-20 Seconds Fuel shutoff Flood Off Auto rudder function Weight % oz Fuel line included EXTRA FUEL LINE TUBINGSO- ft DIRECT ORDER ONLY Send Cash Check MO $3 extra Calif 6% JOHN TATONE 62 BELHAVEN AVE DALY CITY CA 94015 Limited supply 122 Model Aviation Aeronca K/Wischer Continued page 119