~itii Scale Bob Dolly Wischer THE Kitchener-Waterloo Scale Rally weekend annual rally first after Labor Day blessed pleas ant temperature virtually no wind late Friday afternoon better parking spots large campground ad jacent Flying Dutchmens club field Kiwanis Park already occupied Everything about gathering pointed heavy schedule social activitj cen tered around showing large-screen video usual corn roast Satur day evening 154 airplanes regis tered down slightly expected 200 ared past meets Some models displayed flown excellent weather kept sky filled models Only exhaustion RC battery packs stopped some addi tional flights late Sunday afternoon beginning see pairs airplanes flown unison meet Two look-alike CAP-b models John Latest FAI Scale effort Jack Swift Fiat CR32 Chirri OS 12 Cu 4-stroker power Scale ratio 155 finish butyrate dope over Sig Koverall weight 105 lb Camouflage applied airbrush Note authentic scalloped trailing edges wings neatlyapplied cockpit edging Rivet detail does show up well photos panel lines 48 Model Aviation Bob shows us form sturdy plastic windshield Necessary Items include paper template above forms used make windshield Doilys oven used heat plastIc form aluminum tool below L Success below R Small scraps masking tape hold windshield place easy gluing RIC56 glue Britton Ken Coleman finished colors professional aerobatic team French Connection seen numerous air shows around country 1/4-scale CAP lOs superbly aerobatic using 05 160 Gemini twin other Supertigre 2500 Both displayed exceptional vertical perfor mance models constructed Canadian kits having molded fiber glass fuselages foam wings Fuselage stringers molded place kits product Ken Coleman 3300 Don Mills Road Suite 1709 Toronto Ontar io M2J 4X7 couple North American AT-6s built Nick Ziroli kits also flown pair Dick Speidel has produced own worm-gear-driven retract mechan isms models using Boston gears rugged reliable micro switches limit end travel Dicks 32-lb Texan has very active performance Sachs engine model flies though weighs much less Seeing retracts discussing mechanisms Dick sort incentive brings us back K-W rally year Innovative modelers abound Impressively-large models now normally expected type seen K-W beginning Bob Nelitzs perfectlydetailed A-size Piper Cub largest Some smaller models shown fewer flown rally contrast past opposite true first large models began appear Giant models command attention meets course Canada Quadra country engines predominate would expected Nevertheless miss good old days finely-detailed smaller models centers attention present quantity Most larger air craft K-W lacking Scale detail promotes realism close-up viewing Continued page 132 French Connection pair /4-scale CAP-lOs 1 flew formation Kitchener-Waterioo Raily built John Britton Ken Coleman have fiberglass fuselages Johns uses ST 2500 two-stroke Kens OS Gemini 16 Cu twin Steve Gray brought huge fleet planes R KW meet Planes include L R Bellanca WB-2 Dynajet-powered non-scale Dynasoar NOISY deHavilland DH-86B Express Dynasoar built just week WE ARE SHOOTING DOWN~- STOM CUT CONTEST BALSA HIGHBALSAPRICESAll Sheets Piece ed Close Tolerances WITH SUPER QUALITY A Grade Dried ped 100% Satisfaction Guaranteed rious modeler want performance Direct Only must try 4-6 lb balsa BALSA SHEETS 36 48 30 1/16233 3132 240 1/8 ,243 3/16249 1/4 ,256 1/32337 1/20337 1/163374931 3/32 3445837 1/8 3547145 3/18 3630355 1/4 3739561 5/18385 3/8 38812471 1/2 3114155 3/4 ,3195 1/164587648 3/32 4709456 1S 48414666 3/1649312275 /4 411413484 3/8 4165235 1/2 4225261 MATCHED SHEETS 42 3/324100 1/8 4108 3/164120 1/44131 BALSA SliCKS 3648 1/18 1/449 1/16 3/910 1/16 1/214 3/32 1/410 3/32 3/812 3/32 1/216 1/9 1/848 1/8 141116 1/8 381218 1/8 1/21424 3/163/161116 3/16 3/817 3/16 1/22235 1/4 1/41624 1/4 3/81926 1/4 1/22134 1/4 3/43444 1/4 140 5/165162128 3/8 3/82737 3/8 123246 3/8 344255 3/8 152 1/2 1/23653 1/2 3/44662 1/2 158 5/9 5/848 3/4 3467 LIGHT 4-6 LB WOOD36 1/32349 1/20349 1/16349 3/32356 1/8367 3/16376 1/4385 3/83115 1/23139 3/43220 13300 1/16478 332491 1/84140 3/164117 1/44138 3/84207 1/24282 BALSA ,dANGLES 36 1/41425 3/83/830 1/21/234 343/445 1155 BALSA PLANKS36 1185 12150 13250 14280 11/23275 11/24365 22225 23325 24435 33495 34688 TAPERED SHEETS 36 1/4265TRAILING EDGE36 1/43851/4132 3/62685161 1/438 3/83583/811246 1/231251/2279 LORESTAREPOXY 9,L,1 895 5,,598 15,,588 34 ,H598 INSTANT CLUE 1 , Thid296 1 z TS/288 2z TS/k550 2z Th/554 48 28 34 38 46 84 42 48 64 64 70 94 94 100 BUNDLE DEALS 241/6338685 20-1/164361020 243/32336844 15-3/32 436955 15-1/8336715 15-1/8436675 15316336900 10318436910 101/4336630 141/4436890 14-3/8 336450 5-3/8436625 5-1/2336544 5-1/2436855 103/32448845 51/8448485 5-3/16448585 5-1/4448625 PINE STICKS 36 48 HARD MAPLE 1/4 36 3/8 3/8 3/81/2 3/83/4 1/234 18 1/5 1 8 14 1/838 316 316 3/1838 3161/2 / 4 14 1438 14 1 2 38 SPRUCE STICKS 3648 1/8 1/815 18 1/41824 18 3/82428 3163/162534 14 143148 14 3/83650 3/8 3/84583 38 1/25570 12 1/26484 12 346888 SPRUCE TRIANGLES 36 38 3845 121/261 34 3/477 LITE PLY 48 1/86154 1/812300 18 40 45 54 58 68 36 09 11 14 25 32 3PLYBIRCH48 16412525 1/3212425 1/1612435 1/812450 SPLYBIRCH48 33212574 1812585 31512585 1412800 GROOVED LG MOUNTS 12 IncheS 3/83/4/16/40 3834/5/32/40 1234/3/16/45 Handling Charge$300 pay UPS Add $200 COD $300 extra PP APO FPO BIRCH DOWELS 1/8 316 1/4 5/16 3/8 January 1986 49 BASSWOOD 3/163161317 3161/41623 3/163/82027 3/141/21724 316 3/42332 141/43444 143/82637 14343042 38 3/83447 3/81/23752 3/8 3/4 1/212 1/234 BALSA HOT LINE Call 606 7456394 10 am- 6pm Central Time LONE STAR MODELS 1623 57th St Lubbock TX 79412 A4 TEL FOUR CYCLE ENGINE MOUNTS Cast oluminurrr alloy Ground 90 thrust tine Bsght polish finished Socket cop screws inCluded 600 BOO 1000 1000 1000 1000 1000 1000 1200 1100 1300 No JT-62OS MAX FS 60-75-901300 No JT-64ENVA 60-80-90-120 4C1300 No JI-65SAITO PA 651300 No JT-120 Uridrited 120 1600 No Jf-121 ENYA R 120 PC 1800 No JT-122 OS MAX PS 120 1800 No -123 SAITO PA 120 1800 No Jf-125 Super hgre 25-30001800 DRILLED AND TAPPED 1-20 OS MAX PS 20 No JI-40 Undnhted 21-40 Noll-Af t4PVT2f No JI-42 ENVA 35-40 AC No JI-43 SAITO PA 30 No JIM OS MAX PS 40 No J1-45 SAITO PA 40-45 No 1-46 ENVA 46 AC No JI-49 HP VT 49 No J1-60 Undnhled 60-90 No JI-61 OS MAX PS 61 available hobby shop ORDER DIRECT return UPS shipment John rorone ENGINE TESTING STANDS Steel restraining pins Cast Aluminum ton engine No jrrsr J1-rS2 rA 10 60Grant srze 10 25 1150 0 SIDE MOUNT MUFFLERS PillS CAP 21 CESSNA ISO etc No J-40P.No Jr40P 29-4045 60 15001800 2 EXHAUST EXTINSIONS NEO9STNE METAL-FLEXJr-N56 300 r JIM12 DIA GA350 JT-M34 OIA500JT-N58 OIA00 JT-M78V DIX600JT-N34 GA5 50 Jt-Q34 QUADRA 35 Jt-Z34 ZENOAH G-3B A-IDA ALTEC TED 2000 J1-Q3B QUADRA 25 JI-Q5B QUADRA SO JT-Z3B ZENOAR G-3B JI-M38 MAXI 30 2000 JI-Q SS QUADRA SO Jt-M35 MAXI 30 2000 GIANT ENGINE MUFFLERS Matched engine toil pe extensions mounting bolts included Also avaob4e ATLAS 46 BULLY COBRA EAWASAKI KIORtTZ SACII-DOMLER SUPER TiGRE 2500-3000 MAIL ORDER Please add 250 UPS shipping Check MO VISA MC COD accepted Add 200 extra COD Calil residents odd 8% tax -SEND FOR FREE CATALOGJT-Q3L QUADRA 35 JT-Q5L QUADRA 50 JT-23L ZENOAH G-3B JT-TDR ALTEC TED J1-M3R MAN 30 JTQ3R QUADRA 35 Jt-QSR QUADRA 50 JT-23R ZENOAII G-3B JT-M3L MAXI 30 Jt-Q54 QUADRA 50 JI-M34 MAXi 30 2000 arent improvement over AM sets PCM stuff shows some promise better times can lick 31M problem fly Canada can check 20 kHz column saw generally poorer performance 20 kHz spacing expected Hz column misleading got data using transmitters approxi mately equal power case PRS MRS power can up 400 times larger radios wide open interference Yet Ive noted before havent interference reports traced may save some letter-writing tell used old Ace RC Silver Seven built kit AM single-con version receiver tests Tables 2 3 4 Test 14 Simprop PCM-20 am withholding rest names because dont wish set myself up some kind consumers testing service will say 1984 1985 systems did what always work something out test tell you can donduct interpret own tests Now go has debate going about What 1988 Some folks favor splitting band FM-Only preserve Anything Goes area No doubt data will used support positions both sides argument same time may some will data hand start hunting FM scalps Now play nice boys No matter slice splitting band bound reduce number channels use due 31M problems would counterproductive future discussions FCC position remains wit Keep whole band open forms modulation FM can beand will have bedeveloped resist AM because AMA members wont abandon AM systems until/unless FM sets come market offer clearly superior per formance rejecting forms AM interference including dirt-bike ignition noise high-voltage transmission-line cor ona arcing lightning etc However smart thing now may change AMA Phase-k Plan way minimizes 31M Before closing column must ac knowledge help provided long time friend Bob Aberle collected some equipment spent hours performing tests discussing results Without Bob would have stopped writing column longtime ago also have thank Bill Hershberger has saying years 31M major problem must solved finally listened Bill must also thank Ace RC advertisers sug gesting 200-fcot baseline started us off expedition Kraft Systems providing synthesized RF modules make FM testing easy Tower Hobbies loaned us pair AM transmitters some special crystals made AM testing easier Thanks well friends entrusted us equipment test column has led us some unusual conclusions may stir up small amount controversy invitenay challenge disprove data and/or conclusions orderto will have work harder did will have put some hard test data table Opinions worthless analyses no better assumptions George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 responding advertisers mention read about Model Aviation RC Scale/Wischers Continued page 49 Large flying-type models emphasize realism air rather ground dominant rally dont see visitors creeping around knees examine finely-executed detail ing except few rare models Paul Weigand brought Toledo prize-winner K-W rally TA-size Culver Dart flies very well mildly aerobatic its Quadra 50 engine Toledo winners real ly fly Formed windshields Fastening simple sloping windshields curved direc tion can become battle stiff material fights remain flat Glue alone may hold throughout models life Heat-forming 031-inthick acrylic butyrate sheet takes fight out material fastening becomes simple process However windshield isnt formed shape fits closely gluing job can still quite frustrating preferred process begins paper template paper draped over fuselage windshield frame rough ly marked pencil determine ap proximate outline Fold paper along its centerline check equal shapes both halves cut scissors around outline Fit paper template fuselage satisfactory make sec ond third template until shape correct always folding along its centerline certain equal left right halves have never made paper template correct first time Next step duplicate template 010 litho-plate aluminum Form template bending using large-diameter wood dowels rolling pin kitchen fits fuselage Continued page 136 132 Model Aviation 2000 -4: DIA 63 4 728 3 3* 4 5 6 83 3&3/4 4 5 6 8 8*4 5 6 6* 7 94 5 6 6* 7 7* 104 5 6 6W 6* 7 8W 106EW 114 6 T 7* Ti T&3/4 8 116EW iii6 7 125 5W 6 1356 1456 155 6 166 7 FOUR-CYCLE TAILORED HELICAL PITCH 266*T8 46 7 T*8 46 7 Ti8 1567 1667 PYLON RACING 75N 5*N 8&3/46* 6&3/4 7 Ti T&3/4 97 Ti T&3/4 W Wide blade EW Extra wide N PRICE $139 $169 *179 $189 $189 $199 $209 $209 $219 $219 $259 $329 $429 $629 $919 $279 $359 $459 $659 $949 $259 $269 $269 Narrow ALL PRICES ARE POSTPAID ON ORDERS OVER $10 ORDERS SHIPPED FIRST CLASS MAIL WITHIN 24 HRS CALIFORNIA RESIDENTS ADD 6% TAX ADD 8100 IF YOU WANT INSURED MAIL ORDER BY MAIL OR PHONE 714 830-5162 SORRY NO COD VISA & MASTERCARD WELCOME DEALER INQWRIES INVITED SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES COMPLETE INVENTORY OF CUSTOM & STOCK PARTS HARD-TO-FIND ITEMS SUCH AS CUSTOM NEEDLE VALVES RACING WHEELS QUICK FILLS SOLID CONTROL LINES ETC CUSTOM FOX COMBATS HARD CHROME PLATING RC Scate/Wischers Continued page 132 windshield frame snugly edges no gaps should rest place need light force hold its edges down dummy windshield having outline curves match desired finished product exactly second OlO-in-thick rectangular aluminum sheet slightly larger template now formed bending fit templates curved shape using same technique shaping over wood dowels edges sheet stapled wood plank having width dimension equal fuselage width cases front rear edges aluminum will describe dissimilar arcs depending upon fuselage frame shapes now have semi-rigid form will retain its shape form placed kitchen oven set 250 0F Cut piece acrylic sheet same dimensions aluminum form Balance acrylic teeterboard fashion crest form about minute acrylic will soften slowly drape over aluminum until fits shape Too hot plastic may blister Too cool wont drape completely Remove form oven let cool minute two windshield shape will fr permanent Use paper template felt-tip pen trace outline plastic Dont try cutting acrylic scissors because material too brittle will almost certainly crack unwanted direc tions use cutoff disc Dremel grinder cut along line dress edge carefully sandpaper block slip sandpaper new windshield could mined Now set windshield fuselage check uniformity overlap around its edges Sand grind necessary aluminum form bent correctly windshield should fit perfectly bend aluminum corrected shape re-heat plastic over form will take new shape Cement windshield place very narrow ribbon Wllhold R/C-56 glue around edges Only few tabs masking tape needed hold glue dries considerable time because glue trapped between air tight surfaces Mask paint edges may seem lengthy process make simple windshield has no compound curves ps out lined quickly completed gxidthe total time shouldnt thai couple hours reward tight-fitting accurately-shaped windshield having no blemishes can fitted t1 fuselage usual struggle small amount glue used mount wind shield will tend stay needed rather oozing away spoil finish inside Paint around edges com pletely cover glue line large windshield shown photos 75-in-wide fuselage Overall plastic dimensions 5 x 125 acrylic material purchased local plastic supplier large sheet 4 x 6 feetenough lifetime modeling protected both surfaces selfadhesive paper must removed before heating Butyrate sheet can pur chased smaller sizes 85 x 17 17 x 17 see Sig catalog has no protective paper less expensive may have striations spoil clarity softer therefore vulnerable scratching Acrylic can cleaned dope thinner Butyrate dissolved thinner contact must avoided Both types material affected cyanoacrylate tends fog Butyrate withstands impact better acrylic may shatter particularly cutting trimming process Butyrate can cut shears Acrylic can cut like glass scoring cracking off along table edge before removing paper backing Curved lines acrylic best cut Dremel cutoff disc can done before after removal back ing models built past ten years have used acrylic canopies windshields canopy made buty rate 15 years ago has problems warping Models dont ordinarily live long 136 Model Aviation OUH IN VNTUH V AVHAi OVER 8000 PROPS! SPECIAL PRO SERIES PITCH SOCIETY OF ANTIQUE MODELERS MA TERIALS REPLICA OR WICK ENGINES IGNITION CCESSORIES CARBON FIBER * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $225 Cat No 202Air Cleaner Fine$225 Replacement Inserts Cat No 104 PkI2 lnsertsCoarse $195 Cat No 204 Pk/2 Inserts Fine $195 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Add 75 shippingMichigan residents add 4% sales tax Bru Line Industries Inc PO Box 3786 Center Line Michigan 48015 As alternative method acrylic can cut its final outline shape before heating windshield already complete soon cools An advan tage method cutting sanding edges can done paper protection place plastic must precisely centered aluminum form before heating assure exact symmetry latter can bit tricky plastic tends slide easily rotate aluminum could result asymmetrical windshield Marking centerlines plastic form will help keep aligned properly On-board glow ignItion Product reviews dont often appear column occasionally item special interest RC Scale modelers comes attention Ace R/G has Nylite III glow plug lighter on-board ignition throttle servo near idle position adaptable twins two-cylinder engines system consists micro switch box adjustable cam attached throttle pushrod can set close circuit 1200 mAh cell point servo travel Ignition can applied lowest idle other selected engine speed switch box can mounted anywhere model either between servo throttle elsewhere An on-off switch also supplied pre vent discharge battery engine stopped its throttle idle position Switched OFF posi tion external starting battery can plugged charging socket Switched ON starting can done internal cell neat feature lowprofile remote headlock glow plug will fit inside tight cowling Also furnished system charger on-board cell adapter connection external starting battery charging socket Ace R/G has thought detail make workable system course modelers insist upon hidden receiv er switch includes us will now have another switch charging socket hide inside cowl under hatch complete system adds less four ounces model weight provides de pendable slow idle inverted engines four-strokes positive response throttle opened possibility starting need external power source Having used on-board glow cell several older models merit idea recognized 1200 mAh cell can used nose weight ballast tail-heavy situation Nylite II available two glow plugs kit form well assembled Scale instruments peer inside Bob Nelitz Cub T-craft cockpit instrument panel stands out being alto gether realistic having authenticallyreproduced instrument faces Seen K-W Scale Rally Bob has produced print ed Y4- 1A-scale instruments four col ors Background basic black Numerals graduation lines yellow red green maximum minimum mark ings detailed instrument faces heavy paper having lettering repro duced scale smallest inscriptions readable magnifying glass Obviously max mm indications will apply kind instruments card Suggested installation methods included Bobs address Cedarbridge Scale RR4 Creemore Ontario Canada LOM 100 Bob Dolly Wiseher S-221 Lapham Peak Rd Delafield WI 53018 RC Aerobatics/Van Putte Continued page 51 use four-cycle engines continue boom sport fliers Theres vast pool buyers four-cycle engines like power fuel economy pleasant sound possess number con versions four-cycle engines ignition will probably increase too because end up benefits four-cycle engine plus cheaper fuel Im always lookout new prodContinued page 141 January 1986 137
Edition: Model Aviation - 1986/01
Page Numbers: 48, 49, 132, 136, 137
~itii Scale Bob Dolly Wischer THE Kitchener-Waterloo Scale Rally weekend annual rally first after Labor Day blessed pleas ant temperature virtually no wind late Friday afternoon better parking spots large campground ad jacent Flying Dutchmens club field Kiwanis Park already occupied Everything about gathering pointed heavy schedule social activitj cen tered around showing large-screen video usual corn roast Satur day evening 154 airplanes regis tered down slightly expected 200 ared past meets Some models displayed flown excellent weather kept sky filled models Only exhaustion RC battery packs stopped some addi tional flights late Sunday afternoon beginning see pairs airplanes flown unison meet Two look-alike CAP-b models John Latest FAI Scale effort Jack Swift Fiat CR32 Chirri OS 12 Cu 4-stroker power Scale ratio 155 finish butyrate dope over Sig Koverall weight 105 lb Camouflage applied airbrush Note authentic scalloped trailing edges wings neatlyapplied cockpit edging Rivet detail does show up well photos panel lines 48 Model Aviation Bob shows us form sturdy plastic windshield Necessary Items include paper template above forms used make windshield Doilys oven used heat plastIc form aluminum tool below L Success below R Small scraps masking tape hold windshield place easy gluing RIC56 glue Britton Ken Coleman finished colors professional aerobatic team French Connection seen numerous air shows around country 1/4-scale CAP lOs superbly aerobatic using 05 160 Gemini twin other Supertigre 2500 Both displayed exceptional vertical perfor mance models constructed Canadian kits having molded fiber glass fuselages foam wings Fuselage stringers molded place kits product Ken Coleman 3300 Don Mills Road Suite 1709 Toronto Ontar io M2J 4X7 couple North American AT-6s built Nick Ziroli kits also flown pair Dick Speidel has produced own worm-gear-driven retract mechan isms models using Boston gears rugged reliable micro switches limit end travel Dicks 32-lb Texan has very active performance Sachs engine model flies though weighs much less Seeing retracts discussing mechanisms Dick sort incentive brings us back K-W rally year Innovative modelers abound Impressively-large models now normally expected type seen K-W beginning Bob Nelitzs perfectlydetailed A-size Piper Cub largest Some smaller models shown fewer flown rally contrast past opposite true first large models began appear Giant models command attention meets course Canada Quadra country engines predominate would expected Nevertheless miss good old days finely-detailed smaller models centers attention present quantity Most larger air craft K-W lacking Scale detail promotes realism close-up viewing Continued page 132 French Connection pair /4-scale CAP-lOs 1 flew formation Kitchener-Waterioo Raily built John Britton Ken Coleman have fiberglass fuselages Johns uses ST 2500 two-stroke Kens OS Gemini 16 Cu twin Steve Gray brought huge fleet planes R KW meet Planes include L R Bellanca WB-2 Dynajet-powered non-scale Dynasoar NOISY deHavilland DH-86B Express Dynasoar built just week WE ARE SHOOTING DOWN~- STOM CUT CONTEST BALSA HIGHBALSAPRICESAll Sheets Piece ed Close Tolerances WITH SUPER QUALITY A Grade Dried ped 100% Satisfaction Guaranteed rious modeler want performance Direct Only must try 4-6 lb balsa BALSA SHEETS 36 48 30 1/16233 3132 240 1/8 ,243 3/16249 1/4 ,256 1/32337 1/20337 1/163374931 3/32 3445837 1/8 3547145 3/18 3630355 1/4 3739561 5/18385 3/8 38812471 1/2 3114155 3/4 ,3195 1/164587648 3/32 4709456 1S 48414666 3/1649312275 /4 411413484 3/8 4165235 1/2 4225261 MATCHED SHEETS 42 3/324100 1/8 4108 3/164120 1/44131 BALSA SliCKS 3648 1/18 1/449 1/16 3/910 1/16 1/214 3/32 1/410 3/32 3/812 3/32 1/216 1/9 1/848 1/8 141116 1/8 381218 1/8 1/21424 3/163/161116 3/16 3/817 3/16 1/22235 1/4 1/41624 1/4 3/81926 1/4 1/22134 1/4 3/43444 1/4 140 5/165162128 3/8 3/82737 3/8 123246 3/8 344255 3/8 152 1/2 1/23653 1/2 3/44662 1/2 158 5/9 5/848 3/4 3467 LIGHT 4-6 LB WOOD36 1/32349 1/20349 1/16349 3/32356 1/8367 3/16376 1/4385 3/83115 1/23139 3/43220 13300 1/16478 332491 1/84140 3/164117 1/44138 3/84207 1/24282 BALSA ,dANGLES 36 1/41425 3/83/830 1/21/234 343/445 1155 BALSA PLANKS36 1185 12150 13250 14280 11/23275 11/24365 22225 23325 24435 33495 34688 TAPERED SHEETS 36 1/4265TRAILING EDGE36 1/43851/4132 3/62685161 1/438 3/83583/811246 1/231251/2279 LORESTAREPOXY 9,L,1 895 5,,598 15,,588 34 ,H598 INSTANT CLUE 1 , Thid296 1 z TS/288 2z TS/k550 2z Th/554 48 28 34 38 46 84 42 48 64 64 70 94 94 100 BUNDLE DEALS 241/6338685 20-1/164361020 243/32336844 15-3/32 436955 15-1/8336715 15-1/8436675 15316336900 10318436910 101/4336630 141/4436890 14-3/8 336450 5-3/8436625 5-1/2336544 5-1/2436855 103/32448845 51/8448485 5-3/16448585 5-1/4448625 PINE STICKS 36 48 HARD MAPLE 1/4 36 3/8 3/8 3/81/2 3/83/4 1/234 18 1/5 1 8 14 1/838 316 316 3/1838 3161/2 / 4 14 1438 14 1 2 38 SPRUCE STICKS 3648 1/8 1/815 18 1/41824 18 3/82428 3163/162534 14 143148 14 3/83650 3/8 3/84583 38 1/25570 12 1/26484 12 346888 SPRUCE TRIANGLES 36 38 3845 121/261 34 3/477 LITE PLY 48 1/86154 1/812300 18 40 45 54 58 68 36 09 11 14 25 32 3PLYBIRCH48 16412525 1/3212425 1/1612435 1/812450 SPLYBIRCH48 33212574 1812585 31512585 1412800 GROOVED LG MOUNTS 12 IncheS 3/83/4/16/40 3834/5/32/40 1234/3/16/45 Handling Charge$300 pay UPS Add $200 COD $300 extra PP APO FPO BIRCH DOWELS 1/8 316 1/4 5/16 3/8 January 1986 49 BASSWOOD 3/163161317 3161/41623 3/163/82027 3/141/21724 316 3/42332 141/43444 143/82637 14343042 38 3/83447 3/81/23752 3/8 3/4 1/212 1/234 BALSA HOT LINE Call 606 7456394 10 am- 6pm Central Time LONE STAR MODELS 1623 57th St Lubbock TX 79412 A4 TEL FOUR CYCLE ENGINE MOUNTS Cast oluminurrr alloy Ground 90 thrust tine Bsght polish finished Socket cop screws inCluded 600 BOO 1000 1000 1000 1000 1000 1000 1200 1100 1300 No JT-62OS MAX FS 60-75-901300 No JT-64ENVA 60-80-90-120 4C1300 No JI-65SAITO PA 651300 No JT-120 Uridrited 120 1600 No Jf-121 ENYA R 120 PC 1800 No JT-122 OS MAX PS 120 1800 No -123 SAITO PA 120 1800 No Jf-125 Super hgre 25-30001800 DRILLED AND TAPPED 1-20 OS MAX PS 20 No JI-40 Undnhted 21-40 Noll-Af t4PVT2f No JI-42 ENVA 35-40 AC No JI-43 SAITO PA 30 No JIM OS MAX PS 40 No J1-45 SAITO PA 40-45 No 1-46 ENVA 46 AC No JI-49 HP VT 49 No J1-60 Undnhled 60-90 No JI-61 OS MAX PS 61 available hobby shop ORDER DIRECT return UPS shipment John rorone ENGINE TESTING STANDS Steel restraining pins Cast Aluminum ton engine No jrrsr J1-rS2 rA 10 60Grant srze 10 25 1150 0 SIDE MOUNT MUFFLERS PillS CAP 21 CESSNA ISO etc No J-40P.No Jr40P 29-4045 60 15001800 2 EXHAUST EXTINSIONS NEO9STNE METAL-FLEXJr-N56 300 r JIM12 DIA GA350 JT-M34 OIA500JT-N58 OIA00 JT-M78V DIX600JT-N34 GA5 50 Jt-Q34 QUADRA 35 Jt-Z34 ZENOAH G-3B A-IDA ALTEC TED 2000 J1-Q3B QUADRA 25 JI-Q5B QUADRA SO JT-Z3B ZENOAR G-3B JI-M38 MAXI 30 2000 JI-Q SS QUADRA SO Jt-M35 MAXI 30 2000 GIANT ENGINE MUFFLERS Matched engine toil pe extensions mounting bolts included Also avaob4e ATLAS 46 BULLY COBRA EAWASAKI KIORtTZ SACII-DOMLER SUPER TiGRE 2500-3000 MAIL ORDER Please add 250 UPS shipping Check MO VISA MC COD accepted Add 200 extra COD Calil residents odd 8% tax -SEND FOR FREE CATALOGJT-Q3L QUADRA 35 JT-Q5L QUADRA 50 JT-23L ZENOAH G-3B JT-TDR ALTEC TED J1-M3R MAN 30 JTQ3R QUADRA 35 Jt-QSR QUADRA 50 JT-23R ZENOAII G-3B JT-M3L MAXI 30 Jt-Q54 QUADRA 50 JI-M34 MAXi 30 2000 arent improvement over AM sets PCM stuff shows some promise better times can lick 31M problem fly Canada can check 20 kHz column saw generally poorer performance 20 kHz spacing expected Hz column misleading got data using transmitters approxi mately equal power case PRS MRS power can up 400 times larger radios wide open interference Yet Ive noted before havent interference reports traced may save some letter-writing tell used old Ace RC Silver Seven built kit AM single-con version receiver tests Tables 2 3 4 Test 14 Simprop PCM-20 am withholding rest names because dont wish set myself up some kind consumers testing service will say 1984 1985 systems did what always work something out test tell you can donduct interpret own tests Now go has debate going about What 1988 Some folks favor splitting band FM-Only preserve Anything Goes area No doubt data will used support positions both sides argument same time may some will data hand start hunting FM scalps Now play nice boys No matter slice splitting band bound reduce number channels use due 31M problems would counterproductive future discussions FCC position remains wit Keep whole band open forms modulation FM can beand will have bedeveloped resist AM because AMA members wont abandon AM systems until/unless FM sets come market offer clearly superior per formance rejecting forms AM interference including dirt-bike ignition noise high-voltage transmission-line cor ona arcing lightning etc However smart thing now may change AMA Phase-k Plan way minimizes 31M Before closing column must ac knowledge help provided long time friend Bob Aberle collected some equipment spent hours performing tests discussing results Without Bob would have stopped writing column longtime ago also have thank Bill Hershberger has saying years 31M major problem must solved finally listened Bill must also thank Ace RC advertisers sug gesting 200-fcot baseline started us off expedition Kraft Systems providing synthesized RF modules make FM testing easy Tower Hobbies loaned us pair AM transmitters some special crystals made AM testing easier Thanks well friends entrusted us equipment test column has led us some unusual conclusions may stir up small amount controversy invitenay challenge disprove data and/or conclusions orderto will have work harder did will have put some hard test data table Opinions worthless analyses no better assumptions George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 responding advertisers mention read about Model Aviation RC Scale/Wischers Continued page 49 Large flying-type models emphasize realism air rather ground dominant rally dont see visitors creeping around knees examine finely-executed detail ing except few rare models Paul Weigand brought Toledo prize-winner K-W rally TA-size Culver Dart flies very well mildly aerobatic its Quadra 50 engine Toledo winners real ly fly Formed windshields Fastening simple sloping windshields curved direc tion can become battle stiff material fights remain flat Glue alone may hold throughout models life Heat-forming 031-inthick acrylic butyrate sheet takes fight out material fastening becomes simple process However windshield isnt formed shape fits closely gluing job can still quite frustrating preferred process begins paper template paper draped over fuselage windshield frame rough ly marked pencil determine ap proximate outline Fold paper along its centerline check equal shapes both halves cut scissors around outline Fit paper template fuselage satisfactory make sec ond third template until shape correct always folding along its centerline certain equal left right halves have never made paper template correct first time Next step duplicate template 010 litho-plate aluminum Form template bending using large-diameter wood dowels rolling pin kitchen fits fuselage Continued page 136 132 Model Aviation 2000 -4: DIA 63 4 728 3 3* 4 5 6 83 3&3/4 4 5 6 8 8*4 5 6 6* 7 94 5 6 6* 7 7* 104 5 6 6W 6* 7 8W 106EW 114 6 T 7* Ti T&3/4 8 116EW iii6 7 125 5W 6 1356 1456 155 6 166 7 FOUR-CYCLE TAILORED HELICAL PITCH 266*T8 46 7 T*8 46 7 Ti8 1567 1667 PYLON RACING 75N 5*N 8&3/46* 6&3/4 7 Ti T&3/4 97 Ti T&3/4 W Wide blade EW Extra wide N PRICE $139 $169 *179 $189 $189 $199 $209 $209 $219 $219 $259 $329 $429 $629 $919 $279 $359 $459 $659 $949 $259 $269 $269 Narrow ALL PRICES ARE POSTPAID ON ORDERS OVER $10 ORDERS SHIPPED FIRST CLASS MAIL WITHIN 24 HRS CALIFORNIA RESIDENTS ADD 6% TAX ADD 8100 IF YOU WANT INSURED MAIL ORDER BY MAIL OR PHONE 714 830-5162 SORRY NO COD VISA & MASTERCARD WELCOME DEALER INQWRIES INVITED SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES COMPLETE INVENTORY OF CUSTOM & STOCK PARTS HARD-TO-FIND ITEMS SUCH AS CUSTOM NEEDLE VALVES RACING WHEELS QUICK FILLS SOLID CONTROL LINES ETC CUSTOM FOX COMBATS HARD CHROME PLATING RC Scate/Wischers Continued page 132 windshield frame snugly edges no gaps should rest place need light force hold its edges down dummy windshield having outline curves match desired finished product exactly second OlO-in-thick rectangular aluminum sheet slightly larger template now formed bending fit templates curved shape using same technique shaping over wood dowels edges sheet stapled wood plank having width dimension equal fuselage width cases front rear edges aluminum will describe dissimilar arcs depending upon fuselage frame shapes now have semi-rigid form will retain its shape form placed kitchen oven set 250 0F Cut piece acrylic sheet same dimensions aluminum form Balance acrylic teeterboard fashion crest form about minute acrylic will soften slowly drape over aluminum until fits shape Too hot plastic may blister Too cool wont drape completely Remove form oven let cool minute two windshield shape will fr permanent Use paper template felt-tip pen trace outline plastic Dont try cutting acrylic scissors because material too brittle will almost certainly crack unwanted direc tions use cutoff disc Dremel grinder cut along line dress edge carefully sandpaper block slip sandpaper new windshield could mined Now set windshield fuselage check uniformity overlap around its edges Sand grind necessary aluminum form bent correctly windshield should fit perfectly bend aluminum corrected shape re-heat plastic over form will take new shape Cement windshield place very narrow ribbon Wllhold R/C-56 glue around edges Only few tabs masking tape needed hold glue dries considerable time because glue trapped between air tight surfaces Mask paint edges may seem lengthy process make simple windshield has no compound curves ps out lined quickly completed gxidthe total time shouldnt thai couple hours reward tight-fitting accurately-shaped windshield having no blemishes can fitted t1 fuselage usual struggle small amount glue used mount wind shield will tend stay needed rather oozing away spoil finish inside Paint around edges com pletely cover glue line large windshield shown photos 75-in-wide fuselage Overall plastic dimensions 5 x 125 acrylic material purchased local plastic supplier large sheet 4 x 6 feetenough lifetime modeling protected both surfaces selfadhesive paper must removed before heating Butyrate sheet can pur chased smaller sizes 85 x 17 17 x 17 see Sig catalog has no protective paper less expensive may have striations spoil clarity softer therefore vulnerable scratching Acrylic can cleaned dope thinner Butyrate dissolved thinner contact must avoided Both types material affected cyanoacrylate tends fog Butyrate withstands impact better acrylic may shatter particularly cutting trimming process Butyrate can cut shears Acrylic can cut like glass scoring cracking off along table edge before removing paper backing Curved lines acrylic best cut Dremel cutoff disc can done before after removal back ing models built past ten years have used acrylic canopies windshields canopy made buty rate 15 years ago has problems warping Models dont ordinarily live long 136 Model Aviation OUH IN VNTUH V AVHAi OVER 8000 PROPS! SPECIAL PRO SERIES PITCH SOCIETY OF ANTIQUE MODELERS MA TERIALS REPLICA OR WICK ENGINES IGNITION CCESSORIES CARBON FIBER * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $225 Cat No 202Air Cleaner Fine$225 Replacement Inserts Cat No 104 PkI2 lnsertsCoarse $195 Cat No 204 Pk/2 Inserts Fine $195 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Add 75 shippingMichigan residents add 4% sales tax Bru Line Industries Inc PO Box 3786 Center Line Michigan 48015 As alternative method acrylic can cut its final outline shape before heating windshield already complete soon cools An advan tage method cutting sanding edges can done paper protection place plastic must precisely centered aluminum form before heating assure exact symmetry latter can bit tricky plastic tends slide easily rotate aluminum could result asymmetrical windshield Marking centerlines plastic form will help keep aligned properly On-board glow ignItion Product reviews dont often appear column occasionally item special interest RC Scale modelers comes attention Ace R/G has Nylite III glow plug lighter on-board ignition throttle servo near idle position adaptable twins two-cylinder engines system consists micro switch box adjustable cam attached throttle pushrod can set close circuit 1200 mAh cell point servo travel Ignition can applied lowest idle other selected engine speed switch box can mounted anywhere model either between servo throttle elsewhere An on-off switch also supplied pre vent discharge battery engine stopped its throttle idle position Switched OFF posi tion external starting battery can plugged charging socket Switched ON starting can done internal cell neat feature lowprofile remote headlock glow plug will fit inside tight cowling Also furnished system charger on-board cell adapter connection external starting battery charging socket Ace R/G has thought detail make workable system course modelers insist upon hidden receiv er switch includes us will now have another switch charging socket hide inside cowl under hatch complete system adds less four ounces model weight provides de pendable slow idle inverted engines four-strokes positive response throttle opened possibility starting need external power source Having used on-board glow cell several older models merit idea recognized 1200 mAh cell can used nose weight ballast tail-heavy situation Nylite II available two glow plugs kit form well assembled Scale instruments peer inside Bob Nelitz Cub T-craft cockpit instrument panel stands out being alto gether realistic having authenticallyreproduced instrument faces Seen K-W Scale Rally Bob has produced print ed Y4- 1A-scale instruments four col ors Background basic black Numerals graduation lines yellow red green maximum minimum mark ings detailed instrument faces heavy paper having lettering repro duced scale smallest inscriptions readable magnifying glass Obviously max mm indications will apply kind instruments card Suggested installation methods included Bobs address Cedarbridge Scale RR4 Creemore Ontario Canada LOM 100 Bob Dolly Wiseher S-221 Lapham Peak Rd Delafield WI 53018 RC Aerobatics/Van Putte Continued page 51 use four-cycle engines continue boom sport fliers Theres vast pool buyers four-cycle engines like power fuel economy pleasant sound possess number con versions four-cycle engines ignition will probably increase too because end up benefits four-cycle engine plus cheaper fuel Im always lookout new prodContinued page 141 January 1986 137
Edition: Model Aviation - 1986/01
Page Numbers: 48, 49, 132, 136, 137
~itii Scale Bob Dolly Wischer THE Kitchener-Waterloo Scale Rally weekend annual rally first after Labor Day blessed pleas ant temperature virtually no wind late Friday afternoon better parking spots large campground ad jacent Flying Dutchmens club field Kiwanis Park already occupied Everything about gathering pointed heavy schedule social activitj cen tered around showing large-screen video usual corn roast Satur day evening 154 airplanes regis tered down slightly expected 200 ared past meets Some models displayed flown excellent weather kept sky filled models Only exhaustion RC battery packs stopped some addi tional flights late Sunday afternoon beginning see pairs airplanes flown unison meet Two look-alike CAP-b models John Latest FAI Scale effort Jack Swift Fiat CR32 Chirri OS 12 Cu 4-stroker power Scale ratio 155 finish butyrate dope over Sig Koverall weight 105 lb Camouflage applied airbrush Note authentic scalloped trailing edges wings neatlyapplied cockpit edging Rivet detail does show up well photos panel lines 48 Model Aviation Bob shows us form sturdy plastic windshield Necessary Items include paper template above forms used make windshield Doilys oven used heat plastIc form aluminum tool below L Success below R Small scraps masking tape hold windshield place easy gluing RIC56 glue Britton Ken Coleman finished colors professional aerobatic team French Connection seen numerous air shows around country 1/4-scale CAP lOs superbly aerobatic using 05 160 Gemini twin other Supertigre 2500 Both displayed exceptional vertical perfor mance models constructed Canadian kits having molded fiber glass fuselages foam wings Fuselage stringers molded place kits product Ken Coleman 3300 Don Mills Road Suite 1709 Toronto Ontar io M2J 4X7 couple North American AT-6s built Nick Ziroli kits also flown pair Dick Speidel has produced own worm-gear-driven retract mechan isms models using Boston gears rugged reliable micro switches limit end travel Dicks 32-lb Texan has very active performance Sachs engine model flies though weighs much less Seeing retracts discussing mechanisms Dick sort incentive brings us back K-W rally year Innovative modelers abound Impressively-large models now normally expected type seen K-W beginning Bob Nelitzs perfectlydetailed A-size Piper Cub largest Some smaller models shown fewer flown rally contrast past opposite true first large models began appear Giant models command attention meets course Canada Quadra country engines predominate would expected Nevertheless miss good old days finely-detailed smaller models centers attention present quantity Most larger air craft K-W lacking Scale detail promotes realism close-up viewing Continued page 132 French Connection pair /4-scale CAP-lOs 1 flew formation Kitchener-Waterioo Raily built John Britton Ken Coleman have fiberglass fuselages Johns uses ST 2500 two-stroke Kens OS Gemini 16 Cu twin Steve Gray brought huge fleet planes R KW meet Planes include L R Bellanca WB-2 Dynajet-powered non-scale Dynasoar NOISY deHavilland DH-86B Express Dynasoar built just week WE ARE SHOOTING DOWN~- STOM CUT CONTEST BALSA HIGHBALSAPRICESAll Sheets Piece ed Close Tolerances WITH SUPER QUALITY A Grade Dried ped 100% Satisfaction Guaranteed rious modeler want performance Direct Only must try 4-6 lb balsa BALSA SHEETS 36 48 30 1/16233 3132 240 1/8 ,243 3/16249 1/4 ,256 1/32337 1/20337 1/163374931 3/32 3445837 1/8 3547145 3/18 3630355 1/4 3739561 5/18385 3/8 38812471 1/2 3114155 3/4 ,3195 1/164587648 3/32 4709456 1S 48414666 3/1649312275 /4 411413484 3/8 4165235 1/2 4225261 MATCHED SHEETS 42 3/324100 1/8 4108 3/164120 1/44131 BALSA SliCKS 3648 1/18 1/449 1/16 3/910 1/16 1/214 3/32 1/410 3/32 3/812 3/32 1/216 1/9 1/848 1/8 141116 1/8 381218 1/8 1/21424 3/163/161116 3/16 3/817 3/16 1/22235 1/4 1/41624 1/4 3/81926 1/4 1/22134 1/4 3/43444 1/4 140 5/165162128 3/8 3/82737 3/8 123246 3/8 344255 3/8 152 1/2 1/23653 1/2 3/44662 1/2 158 5/9 5/848 3/4 3467 LIGHT 4-6 LB WOOD36 1/32349 1/20349 1/16349 3/32356 1/8367 3/16376 1/4385 3/83115 1/23139 3/43220 13300 1/16478 332491 1/84140 3/164117 1/44138 3/84207 1/24282 BALSA ,dANGLES 36 1/41425 3/83/830 1/21/234 343/445 1155 BALSA PLANKS36 1185 12150 13250 14280 11/23275 11/24365 22225 23325 24435 33495 34688 TAPERED SHEETS 36 1/4265TRAILING EDGE36 1/43851/4132 3/62685161 1/438 3/83583/811246 1/231251/2279 LORESTAREPOXY 9,L,1 895 5,,598 15,,588 34 ,H598 INSTANT CLUE 1 , Thid296 1 z TS/288 2z TS/k550 2z Th/554 48 28 34 38 46 84 42 48 64 64 70 94 94 100 BUNDLE DEALS 241/6338685 20-1/164361020 243/32336844 15-3/32 436955 15-1/8336715 15-1/8436675 15316336900 10318436910 101/4336630 141/4436890 14-3/8 336450 5-3/8436625 5-1/2336544 5-1/2436855 103/32448845 51/8448485 5-3/16448585 5-1/4448625 PINE STICKS 36 48 HARD MAPLE 1/4 36 3/8 3/8 3/81/2 3/83/4 1/234 18 1/5 1 8 14 1/838 316 316 3/1838 3161/2 / 4 14 1438 14 1 2 38 SPRUCE STICKS 3648 1/8 1/815 18 1/41824 18 3/82428 3163/162534 14 143148 14 3/83650 3/8 3/84583 38 1/25570 12 1/26484 12 346888 SPRUCE TRIANGLES 36 38 3845 121/261 34 3/477 LITE PLY 48 1/86154 1/812300 18 40 45 54 58 68 36 09 11 14 25 32 3PLYBIRCH48 16412525 1/3212425 1/1612435 1/812450 SPLYBIRCH48 33212574 1812585 31512585 1412800 GROOVED LG MOUNTS 12 IncheS 3/83/4/16/40 3834/5/32/40 1234/3/16/45 Handling Charge$300 pay UPS Add $200 COD $300 extra PP APO FPO BIRCH DOWELS 1/8 316 1/4 5/16 3/8 January 1986 49 BASSWOOD 3/163161317 3161/41623 3/163/82027 3/141/21724 316 3/42332 141/43444 143/82637 14343042 38 3/83447 3/81/23752 3/8 3/4 1/212 1/234 BALSA HOT LINE Call 606 7456394 10 am- 6pm Central Time LONE STAR MODELS 1623 57th St Lubbock TX 79412 A4 TEL FOUR CYCLE ENGINE MOUNTS Cast oluminurrr alloy Ground 90 thrust tine Bsght polish finished Socket cop screws inCluded 600 BOO 1000 1000 1000 1000 1000 1000 1200 1100 1300 No JT-62OS MAX FS 60-75-901300 No JT-64ENVA 60-80-90-120 4C1300 No JI-65SAITO PA 651300 No JT-120 Uridrited 120 1600 No Jf-121 ENYA R 120 PC 1800 No JT-122 OS MAX PS 120 1800 No -123 SAITO PA 120 1800 No Jf-125 Super hgre 25-30001800 DRILLED AND TAPPED 1-20 OS MAX PS 20 No JI-40 Undnhted 21-40 Noll-Af t4PVT2f No JI-42 ENVA 35-40 AC No JI-43 SAITO PA 30 No JIM OS MAX PS 40 No J1-45 SAITO PA 40-45 No 1-46 ENVA 46 AC No JI-49 HP VT 49 No J1-60 Undnhled 60-90 No JI-61 OS MAX PS 61 available hobby shop ORDER DIRECT return UPS shipment John rorone ENGINE TESTING STANDS Steel restraining pins Cast Aluminum ton engine No jrrsr J1-rS2 rA 10 60Grant srze 10 25 1150 0 SIDE MOUNT MUFFLERS PillS CAP 21 CESSNA ISO etc No J-40P.No Jr40P 29-4045 60 15001800 2 EXHAUST EXTINSIONS NEO9STNE METAL-FLEXJr-N56 300 r JIM12 DIA GA350 JT-M34 OIA500JT-N58 OIA00 JT-M78V DIX600JT-N34 GA5 50 Jt-Q34 QUADRA 35 Jt-Z34 ZENOAH G-3B A-IDA ALTEC TED 2000 J1-Q3B QUADRA 25 JI-Q5B QUADRA SO JT-Z3B ZENOAR G-3B JI-M38 MAXI 30 2000 JI-Q SS QUADRA SO Jt-M35 MAXI 30 2000 GIANT ENGINE MUFFLERS Matched engine toil pe extensions mounting bolts included Also avaob4e ATLAS 46 BULLY COBRA EAWASAKI KIORtTZ SACII-DOMLER SUPER TiGRE 2500-3000 MAIL ORDER Please add 250 UPS shipping Check MO VISA MC COD accepted Add 200 extra COD Calil residents odd 8% tax -SEND FOR FREE CATALOGJT-Q3L QUADRA 35 JT-Q5L QUADRA 50 JT-23L ZENOAH G-3B JT-TDR ALTEC TED J1-M3R MAN 30 JTQ3R QUADRA 35 Jt-QSR QUADRA 50 JT-23R ZENOAII G-3B JT-M3L MAXI 30 Jt-Q54 QUADRA 50 JI-M34 MAXi 30 2000 arent improvement over AM sets PCM stuff shows some promise better times can lick 31M problem fly Canada can check 20 kHz column saw generally poorer performance 20 kHz spacing expected Hz column misleading got data using transmitters approxi mately equal power case PRS MRS power can up 400 times larger radios wide open interference Yet Ive noted before havent interference reports traced may save some letter-writing tell used old Ace RC Silver Seven built kit AM single-con version receiver tests Tables 2 3 4 Test 14 Simprop PCM-20 am withholding rest names because dont wish set myself up some kind consumers testing service will say 1984 1985 systems did what always work something out test tell you can donduct interpret own tests Now go has debate going about What 1988 Some folks favor splitting band FM-Only preserve Anything Goes area No doubt data will used support positions both sides argument same time may some will data hand start hunting FM scalps Now play nice boys No matter slice splitting band bound reduce number channels use due 31M problems would counterproductive future discussions FCC position remains wit Keep whole band open forms modulation FM can beand will have bedeveloped resist AM because AMA members wont abandon AM systems until/unless FM sets come market offer clearly superior per formance rejecting forms AM interference including dirt-bike ignition noise high-voltage transmission-line cor ona arcing lightning etc However smart thing now may change AMA Phase-k Plan way minimizes 31M Before closing column must ac knowledge help provided long time friend Bob Aberle collected some equipment spent hours performing tests discussing results Without Bob would have stopped writing column longtime ago also have thank Bill Hershberger has saying years 31M major problem must solved finally listened Bill must also thank Ace RC advertisers sug gesting 200-fcot baseline started us off expedition Kraft Systems providing synthesized RF modules make FM testing easy Tower Hobbies loaned us pair AM transmitters some special crystals made AM testing easier Thanks well friends entrusted us equipment test column has led us some unusual conclusions may stir up small amount controversy invitenay challenge disprove data and/or conclusions orderto will have work harder did will have put some hard test data table Opinions worthless analyses no better assumptions George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 responding advertisers mention read about Model Aviation RC Scale/Wischers Continued page 49 Large flying-type models emphasize realism air rather ground dominant rally dont see visitors creeping around knees examine finely-executed detail ing except few rare models Paul Weigand brought Toledo prize-winner K-W rally TA-size Culver Dart flies very well mildly aerobatic its Quadra 50 engine Toledo winners real ly fly Formed windshields Fastening simple sloping windshields curved direc tion can become battle stiff material fights remain flat Glue alone may hold throughout models life Heat-forming 031-inthick acrylic butyrate sheet takes fight out material fastening becomes simple process However windshield isnt formed shape fits closely gluing job can still quite frustrating preferred process begins paper template paper draped over fuselage windshield frame rough ly marked pencil determine ap proximate outline Fold paper along its centerline check equal shapes both halves cut scissors around outline Fit paper template fuselage satisfactory make sec ond third template until shape correct always folding along its centerline certain equal left right halves have never made paper template correct first time Next step duplicate template 010 litho-plate aluminum Form template bending using large-diameter wood dowels rolling pin kitchen fits fuselage Continued page 136 132 Model Aviation 2000 -4: DIA 63 4 728 3 3* 4 5 6 83 3&3/4 4 5 6 8 8*4 5 6 6* 7 94 5 6 6* 7 7* 104 5 6 6W 6* 7 8W 106EW 114 6 T 7* Ti T&3/4 8 116EW iii6 7 125 5W 6 1356 1456 155 6 166 7 FOUR-CYCLE TAILORED HELICAL PITCH 266*T8 46 7 T*8 46 7 Ti8 1567 1667 PYLON RACING 75N 5*N 8&3/46* 6&3/4 7 Ti T&3/4 97 Ti T&3/4 W Wide blade EW Extra wide N PRICE $139 $169 *179 $189 $189 $199 $209 $209 $219 $219 $259 $329 $429 $629 $919 $279 $359 $459 $659 $949 $259 $269 $269 Narrow ALL PRICES ARE POSTPAID ON ORDERS OVER $10 ORDERS SHIPPED FIRST CLASS MAIL WITHIN 24 HRS CALIFORNIA RESIDENTS ADD 6% TAX ADD 8100 IF YOU WANT INSURED MAIL ORDER BY MAIL OR PHONE 714 830-5162 SORRY NO COD VISA & MASTERCARD WELCOME DEALER INQWRIES INVITED SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES COMPLETE INVENTORY OF CUSTOM & STOCK PARTS HARD-TO-FIND ITEMS SUCH AS CUSTOM NEEDLE VALVES RACING WHEELS QUICK FILLS SOLID CONTROL LINES ETC CUSTOM FOX COMBATS HARD CHROME PLATING RC Scate/Wischers Continued page 132 windshield frame snugly edges no gaps should rest place need light force hold its edges down dummy windshield having outline curves match desired finished product exactly second OlO-in-thick rectangular aluminum sheet slightly larger template now formed bending fit templates curved shape using same technique shaping over wood dowels edges sheet stapled wood plank having width dimension equal fuselage width cases front rear edges aluminum will describe dissimilar arcs depending upon fuselage frame shapes now have semi-rigid form will retain its shape form placed kitchen oven set 250 0F Cut piece acrylic sheet same dimensions aluminum form Balance acrylic teeterboard fashion crest form about minute acrylic will soften slowly drape over aluminum until fits shape Too hot plastic may blister Too cool wont drape completely Remove form oven let cool minute two windshield shape will fr permanent Use paper template felt-tip pen trace outline plastic Dont try cutting acrylic scissors because material too brittle will almost certainly crack unwanted direc tions use cutoff disc Dremel grinder cut along line dress edge carefully sandpaper block slip sandpaper new windshield could mined Now set windshield fuselage check uniformity overlap around its edges Sand grind necessary aluminum form bent correctly windshield should fit perfectly bend aluminum corrected shape re-heat plastic over form will take new shape Cement windshield place very narrow ribbon Wllhold R/C-56 glue around edges Only few tabs masking tape needed hold glue dries considerable time because glue trapped between air tight surfaces Mask paint edges may seem lengthy process make simple windshield has no compound curves ps out lined quickly completed gxidthe total time shouldnt thai couple hours reward tight-fitting accurately-shaped windshield having no blemishes can fitted t1 fuselage usual struggle small amount glue used mount wind shield will tend stay needed rather oozing away spoil finish inside Paint around edges com pletely cover glue line large windshield shown photos 75-in-wide fuselage Overall plastic dimensions 5 x 125 acrylic material purchased local plastic supplier large sheet 4 x 6 feetenough lifetime modeling protected both surfaces selfadhesive paper must removed before heating Butyrate sheet can pur chased smaller sizes 85 x 17 17 x 17 see Sig catalog has no protective paper less expensive may have striations spoil clarity softer therefore vulnerable scratching Acrylic can cleaned dope thinner Butyrate dissolved thinner contact must avoided Both types material affected cyanoacrylate tends fog Butyrate withstands impact better acrylic may shatter particularly cutting trimming process Butyrate can cut shears Acrylic can cut like glass scoring cracking off along table edge before removing paper backing Curved lines acrylic best cut Dremel cutoff disc can done before after removal back ing models built past ten years have used acrylic canopies windshields canopy made buty rate 15 years ago has problems warping Models dont ordinarily live long 136 Model Aviation OUH IN VNTUH V AVHAi OVER 8000 PROPS! SPECIAL PRO SERIES PITCH SOCIETY OF ANTIQUE MODELERS MA TERIALS REPLICA OR WICK ENGINES IGNITION CCESSORIES CARBON FIBER * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $225 Cat No 202Air Cleaner Fine$225 Replacement Inserts Cat No 104 PkI2 lnsertsCoarse $195 Cat No 204 Pk/2 Inserts Fine $195 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Add 75 shippingMichigan residents add 4% sales tax Bru Line Industries Inc PO Box 3786 Center Line Michigan 48015 As alternative method acrylic can cut its final outline shape before heating windshield already complete soon cools An advan tage method cutting sanding edges can done paper protection place plastic must precisely centered aluminum form before heating assure exact symmetry latter can bit tricky plastic tends slide easily rotate aluminum could result asymmetrical windshield Marking centerlines plastic form will help keep aligned properly On-board glow ignItion Product reviews dont often appear column occasionally item special interest RC Scale modelers comes attention Ace R/G has Nylite III glow plug lighter on-board ignition throttle servo near idle position adaptable twins two-cylinder engines system consists micro switch box adjustable cam attached throttle pushrod can set close circuit 1200 mAh cell point servo travel Ignition can applied lowest idle other selected engine speed switch box can mounted anywhere model either between servo throttle elsewhere An on-off switch also supplied pre vent discharge battery engine stopped its throttle idle position Switched OFF posi tion external starting battery can plugged charging socket Switched ON starting can done internal cell neat feature lowprofile remote headlock glow plug will fit inside tight cowling Also furnished system charger on-board cell adapter connection external starting battery charging socket Ace R/G has thought detail make workable system course modelers insist upon hidden receiv er switch includes us will now have another switch charging socket hide inside cowl under hatch complete system adds less four ounces model weight provides de pendable slow idle inverted engines four-strokes positive response throttle opened possibility starting need external power source Having used on-board glow cell several older models merit idea recognized 1200 mAh cell can used nose weight ballast tail-heavy situation Nylite II available two glow plugs kit form well assembled Scale instruments peer inside Bob Nelitz Cub T-craft cockpit instrument panel stands out being alto gether realistic having authenticallyreproduced instrument faces Seen K-W Scale Rally Bob has produced print ed Y4- 1A-scale instruments four col ors Background basic black Numerals graduation lines yellow red green maximum minimum mark ings detailed instrument faces heavy paper having lettering repro duced scale smallest inscriptions readable magnifying glass Obviously max mm indications will apply kind instruments card Suggested installation methods included Bobs address Cedarbridge Scale RR4 Creemore Ontario Canada LOM 100 Bob Dolly Wiseher S-221 Lapham Peak Rd Delafield WI 53018 RC Aerobatics/Van Putte Continued page 51 use four-cycle engines continue boom sport fliers Theres vast pool buyers four-cycle engines like power fuel economy pleasant sound possess number con versions four-cycle engines ignition will probably increase too because end up benefits four-cycle engine plus cheaper fuel Im always lookout new prodContinued page 141 January 1986 137
Edition: Model Aviation - 1986/01
Page Numbers: 48, 49, 132, 136, 137
~itii Scale Bob Dolly Wischer THE Kitchener-Waterloo Scale Rally weekend annual rally first after Labor Day blessed pleas ant temperature virtually no wind late Friday afternoon better parking spots large campground ad jacent Flying Dutchmens club field Kiwanis Park already occupied Everything about gathering pointed heavy schedule social activitj cen tered around showing large-screen video usual corn roast Satur day evening 154 airplanes regis tered down slightly expected 200 ared past meets Some models displayed flown excellent weather kept sky filled models Only exhaustion RC battery packs stopped some addi tional flights late Sunday afternoon beginning see pairs airplanes flown unison meet Two look-alike CAP-b models John Latest FAI Scale effort Jack Swift Fiat CR32 Chirri OS 12 Cu 4-stroker power Scale ratio 155 finish butyrate dope over Sig Koverall weight 105 lb Camouflage applied airbrush Note authentic scalloped trailing edges wings neatlyapplied cockpit edging Rivet detail does show up well photos panel lines 48 Model Aviation Bob shows us form sturdy plastic windshield Necessary Items include paper template above forms used make windshield Doilys oven used heat plastIc form aluminum tool below L Success below R Small scraps masking tape hold windshield place easy gluing RIC56 glue Britton Ken Coleman finished colors professional aerobatic team French Connection seen numerous air shows around country 1/4-scale CAP lOs superbly aerobatic using 05 160 Gemini twin other Supertigre 2500 Both displayed exceptional vertical perfor mance models constructed Canadian kits having molded fiber glass fuselages foam wings Fuselage stringers molded place kits product Ken Coleman 3300 Don Mills Road Suite 1709 Toronto Ontar io M2J 4X7 couple North American AT-6s built Nick Ziroli kits also flown pair Dick Speidel has produced own worm-gear-driven retract mechan isms models using Boston gears rugged reliable micro switches limit end travel Dicks 32-lb Texan has very active performance Sachs engine model flies though weighs much less Seeing retracts discussing mechanisms Dick sort incentive brings us back K-W rally year Innovative modelers abound Impressively-large models now normally expected type seen K-W beginning Bob Nelitzs perfectlydetailed A-size Piper Cub largest Some smaller models shown fewer flown rally contrast past opposite true first large models began appear Giant models command attention meets course Canada Quadra country engines predominate would expected Nevertheless miss good old days finely-detailed smaller models centers attention present quantity Most larger air craft K-W lacking Scale detail promotes realism close-up viewing Continued page 132 French Connection pair /4-scale CAP-lOs 1 flew formation Kitchener-Waterioo Raily built John Britton Ken Coleman have fiberglass fuselages Johns uses ST 2500 two-stroke Kens OS Gemini 16 Cu twin Steve Gray brought huge fleet planes R KW meet Planes include L R Bellanca WB-2 Dynajet-powered non-scale Dynasoar NOISY deHavilland DH-86B Express Dynasoar built just week WE ARE SHOOTING DOWN~- STOM CUT CONTEST BALSA HIGHBALSAPRICESAll Sheets Piece ed Close Tolerances WITH SUPER QUALITY A Grade Dried ped 100% Satisfaction Guaranteed rious modeler want performance Direct Only must try 4-6 lb balsa BALSA SHEETS 36 48 30 1/16233 3132 240 1/8 ,243 3/16249 1/4 ,256 1/32337 1/20337 1/163374931 3/32 3445837 1/8 3547145 3/18 3630355 1/4 3739561 5/18385 3/8 38812471 1/2 3114155 3/4 ,3195 1/164587648 3/32 4709456 1S 48414666 3/1649312275 /4 411413484 3/8 4165235 1/2 4225261 MATCHED SHEETS 42 3/324100 1/8 4108 3/164120 1/44131 BALSA SliCKS 3648 1/18 1/449 1/16 3/910 1/16 1/214 3/32 1/410 3/32 3/812 3/32 1/216 1/9 1/848 1/8 141116 1/8 381218 1/8 1/21424 3/163/161116 3/16 3/817 3/16 1/22235 1/4 1/41624 1/4 3/81926 1/4 1/22134 1/4 3/43444 1/4 140 5/165162128 3/8 3/82737 3/8 123246 3/8 344255 3/8 152 1/2 1/23653 1/2 3/44662 1/2 158 5/9 5/848 3/4 3467 LIGHT 4-6 LB WOOD36 1/32349 1/20349 1/16349 3/32356 1/8367 3/16376 1/4385 3/83115 1/23139 3/43220 13300 1/16478 332491 1/84140 3/164117 1/44138 3/84207 1/24282 BALSA ,dANGLES 36 1/41425 3/83/830 1/21/234 343/445 1155 BALSA PLANKS36 1185 12150 13250 14280 11/23275 11/24365 22225 23325 24435 33495 34688 TAPERED SHEETS 36 1/4265TRAILING EDGE36 1/43851/4132 3/62685161 1/438 3/83583/811246 1/231251/2279 LORESTAREPOXY 9,L,1 895 5,,598 15,,588 34 ,H598 INSTANT CLUE 1 , Thid296 1 z TS/288 2z TS/k550 2z Th/554 48 28 34 38 46 84 42 48 64 64 70 94 94 100 BUNDLE DEALS 241/6338685 20-1/164361020 243/32336844 15-3/32 436955 15-1/8336715 15-1/8436675 15316336900 10318436910 101/4336630 141/4436890 14-3/8 336450 5-3/8436625 5-1/2336544 5-1/2436855 103/32448845 51/8448485 5-3/16448585 5-1/4448625 PINE STICKS 36 48 HARD MAPLE 1/4 36 3/8 3/8 3/81/2 3/83/4 1/234 18 1/5 1 8 14 1/838 316 316 3/1838 3161/2 / 4 14 1438 14 1 2 38 SPRUCE STICKS 3648 1/8 1/815 18 1/41824 18 3/82428 3163/162534 14 143148 14 3/83650 3/8 3/84583 38 1/25570 12 1/26484 12 346888 SPRUCE TRIANGLES 36 38 3845 121/261 34 3/477 LITE PLY 48 1/86154 1/812300 18 40 45 54 58 68 36 09 11 14 25 32 3PLYBIRCH48 16412525 1/3212425 1/1612435 1/812450 SPLYBIRCH48 33212574 1812585 31512585 1412800 GROOVED LG MOUNTS 12 IncheS 3/83/4/16/40 3834/5/32/40 1234/3/16/45 Handling Charge$300 pay UPS Add $200 COD $300 extra PP APO FPO BIRCH DOWELS 1/8 316 1/4 5/16 3/8 January 1986 49 BASSWOOD 3/163161317 3161/41623 3/163/82027 3/141/21724 316 3/42332 141/43444 143/82637 14343042 38 3/83447 3/81/23752 3/8 3/4 1/212 1/234 BALSA HOT LINE Call 606 7456394 10 am- 6pm Central Time LONE STAR MODELS 1623 57th St Lubbock TX 79412 A4 TEL FOUR CYCLE ENGINE MOUNTS Cast oluminurrr alloy Ground 90 thrust tine Bsght polish finished Socket cop screws inCluded 600 BOO 1000 1000 1000 1000 1000 1000 1200 1100 1300 No JT-62OS MAX FS 60-75-901300 No JT-64ENVA 60-80-90-120 4C1300 No JI-65SAITO PA 651300 No JT-120 Uridrited 120 1600 No Jf-121 ENYA R 120 PC 1800 No JT-122 OS MAX PS 120 1800 No -123 SAITO PA 120 1800 No Jf-125 Super hgre 25-30001800 DRILLED AND TAPPED 1-20 OS MAX PS 20 No JI-40 Undnhted 21-40 Noll-Af t4PVT2f No JI-42 ENVA 35-40 AC No JI-43 SAITO PA 30 No JIM OS MAX PS 40 No J1-45 SAITO PA 40-45 No 1-46 ENVA 46 AC No JI-49 HP VT 49 No J1-60 Undnhled 60-90 No JI-61 OS MAX PS 61 available hobby shop ORDER DIRECT return UPS shipment John rorone ENGINE TESTING STANDS Steel restraining pins Cast Aluminum ton engine No jrrsr J1-rS2 rA 10 60Grant srze 10 25 1150 0 SIDE MOUNT MUFFLERS PillS CAP 21 CESSNA ISO etc No J-40P.No Jr40P 29-4045 60 15001800 2 EXHAUST EXTINSIONS NEO9STNE METAL-FLEXJr-N56 300 r JIM12 DIA GA350 JT-M34 OIA500JT-N58 OIA00 JT-M78V DIX600JT-N34 GA5 50 Jt-Q34 QUADRA 35 Jt-Z34 ZENOAH G-3B A-IDA ALTEC TED 2000 J1-Q3B QUADRA 25 JI-Q5B QUADRA SO JT-Z3B ZENOAR G-3B JI-M38 MAXI 30 2000 JI-Q SS QUADRA SO Jt-M35 MAXI 30 2000 GIANT ENGINE MUFFLERS Matched engine toil pe extensions mounting bolts included Also avaob4e ATLAS 46 BULLY COBRA EAWASAKI KIORtTZ SACII-DOMLER SUPER TiGRE 2500-3000 MAIL ORDER Please add 250 UPS shipping Check MO VISA MC COD accepted Add 200 extra COD Calil residents odd 8% tax -SEND FOR FREE CATALOGJT-Q3L QUADRA 35 JT-Q5L QUADRA 50 JT-23L ZENOAH G-3B JT-TDR ALTEC TED J1-M3R MAN 30 JTQ3R QUADRA 35 Jt-QSR QUADRA 50 JT-23R ZENOAII G-3B JT-M3L MAXI 30 Jt-Q54 QUADRA 50 JI-M34 MAXi 30 2000 arent improvement over AM sets PCM stuff shows some promise better times can lick 31M problem fly Canada can check 20 kHz column saw generally poorer performance 20 kHz spacing expected Hz column misleading got data using transmitters approxi mately equal power case PRS MRS power can up 400 times larger radios wide open interference Yet Ive noted before havent interference reports traced may save some letter-writing tell used old Ace RC Silver Seven built kit AM single-con version receiver tests Tables 2 3 4 Test 14 Simprop PCM-20 am withholding rest names because dont wish set myself up some kind consumers testing service will say 1984 1985 systems did what always work something out test tell you can donduct interpret own tests Now go has debate going about What 1988 Some folks favor splitting band FM-Only preserve Anything Goes area No doubt data will used support positions both sides argument same time may some will data hand start hunting FM scalps Now play nice boys No matter slice splitting band bound reduce number channels use due 31M problems would counterproductive future discussions FCC position remains wit Keep whole band open forms modulation FM can beand will have bedeveloped resist AM because AMA members wont abandon AM systems until/unless FM sets come market offer clearly superior per formance rejecting forms AM interference including dirt-bike ignition noise high-voltage transmission-line cor ona arcing lightning etc However smart thing now may change AMA Phase-k Plan way minimizes 31M Before closing column must ac knowledge help provided long time friend Bob Aberle collected some equipment spent hours performing tests discussing results Without Bob would have stopped writing column longtime ago also have thank Bill Hershberger has saying years 31M major problem must solved finally listened Bill must also thank Ace RC advertisers sug gesting 200-fcot baseline started us off expedition Kraft Systems providing synthesized RF modules make FM testing easy Tower Hobbies loaned us pair AM transmitters some special crystals made AM testing easier Thanks well friends entrusted us equipment test column has led us some unusual conclusions may stir up small amount controversy invitenay challenge disprove data and/or conclusions orderto will have work harder did will have put some hard test data table Opinions worthless analyses no better assumptions George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 responding advertisers mention read about Model Aviation RC Scale/Wischers Continued page 49 Large flying-type models emphasize realism air rather ground dominant rally dont see visitors creeping around knees examine finely-executed detail ing except few rare models Paul Weigand brought Toledo prize-winner K-W rally TA-size Culver Dart flies very well mildly aerobatic its Quadra 50 engine Toledo winners real ly fly Formed windshields Fastening simple sloping windshields curved direc tion can become battle stiff material fights remain flat Glue alone may hold throughout models life Heat-forming 031-inthick acrylic butyrate sheet takes fight out material fastening becomes simple process However windshield isnt formed shape fits closely gluing job can still quite frustrating preferred process begins paper template paper draped over fuselage windshield frame rough ly marked pencil determine ap proximate outline Fold paper along its centerline check equal shapes both halves cut scissors around outline Fit paper template fuselage satisfactory make sec ond third template until shape correct always folding along its centerline certain equal left right halves have never made paper template correct first time Next step duplicate template 010 litho-plate aluminum Form template bending using large-diameter wood dowels rolling pin kitchen fits fuselage Continued page 136 132 Model Aviation 2000 -4: DIA 63 4 728 3 3* 4 5 6 83 3&3/4 4 5 6 8 8*4 5 6 6* 7 94 5 6 6* 7 7* 104 5 6 6W 6* 7 8W 106EW 114 6 T 7* Ti T&3/4 8 116EW iii6 7 125 5W 6 1356 1456 155 6 166 7 FOUR-CYCLE TAILORED HELICAL PITCH 266*T8 46 7 T*8 46 7 Ti8 1567 1667 PYLON RACING 75N 5*N 8&3/46* 6&3/4 7 Ti T&3/4 97 Ti T&3/4 W Wide blade EW Extra wide N PRICE $139 $169 *179 $189 $189 $199 $209 $209 $219 $219 $259 $329 $429 $629 $919 $279 $359 $459 $659 $949 $259 $269 $269 Narrow ALL PRICES ARE POSTPAID ON ORDERS OVER $10 ORDERS SHIPPED FIRST CLASS MAIL WITHIN 24 HRS CALIFORNIA RESIDENTS ADD 6% TAX ADD 8100 IF YOU WANT INSURED MAIL ORDER BY MAIL OR PHONE 714 830-5162 SORRY NO COD VISA & MASTERCARD WELCOME DEALER INQWRIES INVITED SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES COMPLETE INVENTORY OF CUSTOM & STOCK PARTS HARD-TO-FIND ITEMS SUCH AS CUSTOM NEEDLE VALVES RACING WHEELS QUICK FILLS SOLID CONTROL LINES ETC CUSTOM FOX COMBATS HARD CHROME PLATING RC Scate/Wischers Continued page 132 windshield frame snugly edges no gaps should rest place need light force hold its edges down dummy windshield having outline curves match desired finished product exactly second OlO-in-thick rectangular aluminum sheet slightly larger template now formed bending fit templates curved shape using same technique shaping over wood dowels edges sheet stapled wood plank having width dimension equal fuselage width cases front rear edges aluminum will describe dissimilar arcs depending upon fuselage frame shapes now have semi-rigid form will retain its shape form placed kitchen oven set 250 0F Cut piece acrylic sheet same dimensions aluminum form Balance acrylic teeterboard fashion crest form about minute acrylic will soften slowly drape over aluminum until fits shape Too hot plastic may blister Too cool wont drape completely Remove form oven let cool minute two windshield shape will fr permanent Use paper template felt-tip pen trace outline plastic Dont try cutting acrylic scissors because material too brittle will almost certainly crack unwanted direc tions use cutoff disc Dremel grinder cut along line dress edge carefully sandpaper block slip sandpaper new windshield could mined Now set windshield fuselage check uniformity overlap around its edges Sand grind necessary aluminum form bent correctly windshield should fit perfectly bend aluminum corrected shape re-heat plastic over form will take new shape Cement windshield place very narrow ribbon Wllhold R/C-56 glue around edges Only few tabs masking tape needed hold glue dries considerable time because glue trapped between air tight surfaces Mask paint edges may seem lengthy process make simple windshield has no compound curves ps out lined quickly completed gxidthe total time shouldnt thai couple hours reward tight-fitting accurately-shaped windshield having no blemishes can fitted t1 fuselage usual struggle small amount glue used mount wind shield will tend stay needed rather oozing away spoil finish inside Paint around edges com pletely cover glue line large windshield shown photos 75-in-wide fuselage Overall plastic dimensions 5 x 125 acrylic material purchased local plastic supplier large sheet 4 x 6 feetenough lifetime modeling protected both surfaces selfadhesive paper must removed before heating Butyrate sheet can pur chased smaller sizes 85 x 17 17 x 17 see Sig catalog has no protective paper less expensive may have striations spoil clarity softer therefore vulnerable scratching Acrylic can cleaned dope thinner Butyrate dissolved thinner contact must avoided Both types material affected cyanoacrylate tends fog Butyrate withstands impact better acrylic may shatter particularly cutting trimming process Butyrate can cut shears Acrylic can cut like glass scoring cracking off along table edge before removing paper backing Curved lines acrylic best cut Dremel cutoff disc can done before after removal back ing models built past ten years have used acrylic canopies windshields canopy made buty rate 15 years ago has problems warping Models dont ordinarily live long 136 Model Aviation OUH IN VNTUH V AVHAi OVER 8000 PROPS! SPECIAL PRO SERIES PITCH SOCIETY OF ANTIQUE MODELERS MA TERIALS REPLICA OR WICK ENGINES IGNITION CCESSORIES CARBON FIBER * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $225 Cat No 202Air Cleaner Fine$225 Replacement Inserts Cat No 104 PkI2 lnsertsCoarse $195 Cat No 204 Pk/2 Inserts Fine $195 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Add 75 shippingMichigan residents add 4% sales tax Bru Line Industries Inc PO Box 3786 Center Line Michigan 48015 As alternative method acrylic can cut its final outline shape before heating windshield already complete soon cools An advan tage method cutting sanding edges can done paper protection place plastic must precisely centered aluminum form before heating assure exact symmetry latter can bit tricky plastic tends slide easily rotate aluminum could result asymmetrical windshield Marking centerlines plastic form will help keep aligned properly On-board glow ignItion Product reviews dont often appear column occasionally item special interest RC Scale modelers comes attention Ace R/G has Nylite III glow plug lighter on-board ignition throttle servo near idle position adaptable twins two-cylinder engines system consists micro switch box adjustable cam attached throttle pushrod can set close circuit 1200 mAh cell point servo travel Ignition can applied lowest idle other selected engine speed switch box can mounted anywhere model either between servo throttle elsewhere An on-off switch also supplied pre vent discharge battery engine stopped its throttle idle position Switched OFF posi tion external starting battery can plugged charging socket Switched ON starting can done internal cell neat feature lowprofile remote headlock glow plug will fit inside tight cowling Also furnished system charger on-board cell adapter connection external starting battery charging socket Ace R/G has thought detail make workable system course modelers insist upon hidden receiv er switch includes us will now have another switch charging socket hide inside cowl under hatch complete system adds less four ounces model weight provides de pendable slow idle inverted engines four-strokes positive response throttle opened possibility starting need external power source Having used on-board glow cell several older models merit idea recognized 1200 mAh cell can used nose weight ballast tail-heavy situation Nylite II available two glow plugs kit form well assembled Scale instruments peer inside Bob Nelitz Cub T-craft cockpit instrument panel stands out being alto gether realistic having authenticallyreproduced instrument faces Seen K-W Scale Rally Bob has produced print ed Y4- 1A-scale instruments four col ors Background basic black Numerals graduation lines yellow red green maximum minimum mark ings detailed instrument faces heavy paper having lettering repro duced scale smallest inscriptions readable magnifying glass Obviously max mm indications will apply kind instruments card Suggested installation methods included Bobs address Cedarbridge Scale RR4 Creemore Ontario Canada LOM 100 Bob Dolly Wiseher S-221 Lapham Peak Rd Delafield WI 53018 RC Aerobatics/Van Putte Continued page 51 use four-cycle engines continue boom sport fliers Theres vast pool buyers four-cycle engines like power fuel economy pleasant sound possess number con versions four-cycle engines ignition will probably increase too because end up benefits four-cycle engine plus cheaper fuel Im always lookout new prodContinued page 141 January 1986 137
Edition: Model Aviation - 1986/01
Page Numbers: 48, 49, 132, 136, 137
~itii Scale Bob Dolly Wischer THE Kitchener-Waterloo Scale Rally weekend annual rally first after Labor Day blessed pleas ant temperature virtually no wind late Friday afternoon better parking spots large campground ad jacent Flying Dutchmens club field Kiwanis Park already occupied Everything about gathering pointed heavy schedule social activitj cen tered around showing large-screen video usual corn roast Satur day evening 154 airplanes regis tered down slightly expected 200 ared past meets Some models displayed flown excellent weather kept sky filled models Only exhaustion RC battery packs stopped some addi tional flights late Sunday afternoon beginning see pairs airplanes flown unison meet Two look-alike CAP-b models John Latest FAI Scale effort Jack Swift Fiat CR32 Chirri OS 12 Cu 4-stroker power Scale ratio 155 finish butyrate dope over Sig Koverall weight 105 lb Camouflage applied airbrush Note authentic scalloped trailing edges wings neatlyapplied cockpit edging Rivet detail does show up well photos panel lines 48 Model Aviation Bob shows us form sturdy plastic windshield Necessary Items include paper template above forms used make windshield Doilys oven used heat plastIc form aluminum tool below L Success below R Small scraps masking tape hold windshield place easy gluing RIC56 glue Britton Ken Coleman finished colors professional aerobatic team French Connection seen numerous air shows around country 1/4-scale CAP lOs superbly aerobatic using 05 160 Gemini twin other Supertigre 2500 Both displayed exceptional vertical perfor mance models constructed Canadian kits having molded fiber glass fuselages foam wings Fuselage stringers molded place kits product Ken Coleman 3300 Don Mills Road Suite 1709 Toronto Ontar io M2J 4X7 couple North American AT-6s built Nick Ziroli kits also flown pair Dick Speidel has produced own worm-gear-driven retract mechan isms models using Boston gears rugged reliable micro switches limit end travel Dicks 32-lb Texan has very active performance Sachs engine model flies though weighs much less Seeing retracts discussing mechanisms Dick sort incentive brings us back K-W rally year Innovative modelers abound Impressively-large models now normally expected type seen K-W beginning Bob Nelitzs perfectlydetailed A-size Piper Cub largest Some smaller models shown fewer flown rally contrast past opposite true first large models began appear Giant models command attention meets course Canada Quadra country engines predominate would expected Nevertheless miss good old days finely-detailed smaller models centers attention present quantity Most larger air craft K-W lacking Scale detail promotes realism close-up viewing Continued page 132 French Connection pair /4-scale CAP-lOs 1 flew formation Kitchener-Waterioo Raily built John Britton Ken Coleman have fiberglass fuselages Johns uses ST 2500 two-stroke Kens OS Gemini 16 Cu twin Steve Gray brought huge fleet planes R KW meet Planes include L R Bellanca WB-2 Dynajet-powered non-scale Dynasoar NOISY deHavilland DH-86B Express Dynasoar built just week WE ARE SHOOTING DOWN~- STOM CUT CONTEST BALSA HIGHBALSAPRICESAll Sheets Piece ed Close Tolerances WITH SUPER QUALITY A Grade Dried ped 100% Satisfaction Guaranteed rious modeler want performance Direct Only must try 4-6 lb balsa BALSA SHEETS 36 48 30 1/16233 3132 240 1/8 ,243 3/16249 1/4 ,256 1/32337 1/20337 1/163374931 3/32 3445837 1/8 3547145 3/18 3630355 1/4 3739561 5/18385 3/8 38812471 1/2 3114155 3/4 ,3195 1/164587648 3/32 4709456 1S 48414666 3/1649312275 /4 411413484 3/8 4165235 1/2 4225261 MATCHED SHEETS 42 3/324100 1/8 4108 3/164120 1/44131 BALSA SliCKS 3648 1/18 1/449 1/16 3/910 1/16 1/214 3/32 1/410 3/32 3/812 3/32 1/216 1/9 1/848 1/8 141116 1/8 381218 1/8 1/21424 3/163/161116 3/16 3/817 3/16 1/22235 1/4 1/41624 1/4 3/81926 1/4 1/22134 1/4 3/43444 1/4 140 5/165162128 3/8 3/82737 3/8 123246 3/8 344255 3/8 152 1/2 1/23653 1/2 3/44662 1/2 158 5/9 5/848 3/4 3467 LIGHT 4-6 LB WOOD36 1/32349 1/20349 1/16349 3/32356 1/8367 3/16376 1/4385 3/83115 1/23139 3/43220 13300 1/16478 332491 1/84140 3/164117 1/44138 3/84207 1/24282 BALSA ,dANGLES 36 1/41425 3/83/830 1/21/234 343/445 1155 BALSA PLANKS36 1185 12150 13250 14280 11/23275 11/24365 22225 23325 24435 33495 34688 TAPERED SHEETS 36 1/4265TRAILING EDGE36 1/43851/4132 3/62685161 1/438 3/83583/811246 1/231251/2279 LORESTAREPOXY 9,L,1 895 5,,598 15,,588 34 ,H598 INSTANT CLUE 1 , Thid296 1 z TS/288 2z TS/k550 2z Th/554 48 28 34 38 46 84 42 48 64 64 70 94 94 100 BUNDLE DEALS 241/6338685 20-1/164361020 243/32336844 15-3/32 436955 15-1/8336715 15-1/8436675 15316336900 10318436910 101/4336630 141/4436890 14-3/8 336450 5-3/8436625 5-1/2336544 5-1/2436855 103/32448845 51/8448485 5-3/16448585 5-1/4448625 PINE STICKS 36 48 HARD MAPLE 1/4 36 3/8 3/8 3/81/2 3/83/4 1/234 18 1/5 1 8 14 1/838 316 316 3/1838 3161/2 / 4 14 1438 14 1 2 38 SPRUCE STICKS 3648 1/8 1/815 18 1/41824 18 3/82428 3163/162534 14 143148 14 3/83650 3/8 3/84583 38 1/25570 12 1/26484 12 346888 SPRUCE TRIANGLES 36 38 3845 121/261 34 3/477 LITE PLY 48 1/86154 1/812300 18 40 45 54 58 68 36 09 11 14 25 32 3PLYBIRCH48 16412525 1/3212425 1/1612435 1/812450 SPLYBIRCH48 33212574 1812585 31512585 1412800 GROOVED LG MOUNTS 12 IncheS 3/83/4/16/40 3834/5/32/40 1234/3/16/45 Handling Charge$300 pay UPS Add $200 COD $300 extra PP APO FPO BIRCH DOWELS 1/8 316 1/4 5/16 3/8 January 1986 49 BASSWOOD 3/163161317 3161/41623 3/163/82027 3/141/21724 316 3/42332 141/43444 143/82637 14343042 38 3/83447 3/81/23752 3/8 3/4 1/212 1/234 BALSA HOT LINE Call 606 7456394 10 am- 6pm Central Time LONE STAR MODELS 1623 57th St Lubbock TX 79412 A4 TEL FOUR CYCLE ENGINE MOUNTS Cast oluminurrr alloy Ground 90 thrust tine Bsght polish finished Socket cop screws inCluded 600 BOO 1000 1000 1000 1000 1000 1000 1200 1100 1300 No JT-62OS MAX FS 60-75-901300 No JT-64ENVA 60-80-90-120 4C1300 No JI-65SAITO PA 651300 No JT-120 Uridrited 120 1600 No Jf-121 ENYA R 120 PC 1800 No JT-122 OS MAX PS 120 1800 No -123 SAITO PA 120 1800 No Jf-125 Super hgre 25-30001800 DRILLED AND TAPPED 1-20 OS MAX PS 20 No JI-40 Undnhted 21-40 Noll-Af t4PVT2f No JI-42 ENVA 35-40 AC No JI-43 SAITO PA 30 No JIM OS MAX PS 40 No J1-45 SAITO PA 40-45 No 1-46 ENVA 46 AC No JI-49 HP VT 49 No J1-60 Undnhled 60-90 No JI-61 OS MAX PS 61 available hobby shop ORDER DIRECT return UPS shipment John rorone ENGINE TESTING STANDS Steel restraining pins Cast Aluminum ton engine No jrrsr J1-rS2 rA 10 60Grant srze 10 25 1150 0 SIDE MOUNT MUFFLERS PillS CAP 21 CESSNA ISO etc No J-40P.No Jr40P 29-4045 60 15001800 2 EXHAUST EXTINSIONS NEO9STNE METAL-FLEXJr-N56 300 r JIM12 DIA GA350 JT-M34 OIA500JT-N58 OIA00 JT-M78V DIX600JT-N34 GA5 50 Jt-Q34 QUADRA 35 Jt-Z34 ZENOAH G-3B A-IDA ALTEC TED 2000 J1-Q3B QUADRA 25 JI-Q5B QUADRA SO JT-Z3B ZENOAR G-3B JI-M38 MAXI 30 2000 JI-Q SS QUADRA SO Jt-M35 MAXI 30 2000 GIANT ENGINE MUFFLERS Matched engine toil pe extensions mounting bolts included Also avaob4e ATLAS 46 BULLY COBRA EAWASAKI KIORtTZ SACII-DOMLER SUPER TiGRE 2500-3000 MAIL ORDER Please add 250 UPS shipping Check MO VISA MC COD accepted Add 200 extra COD Calil residents odd 8% tax -SEND FOR FREE CATALOGJT-Q3L QUADRA 35 JT-Q5L QUADRA 50 JT-23L ZENOAH G-3B JT-TDR ALTEC TED J1-M3R MAN 30 JTQ3R QUADRA 35 Jt-QSR QUADRA 50 JT-23R ZENOAII G-3B JT-M3L MAXI 30 Jt-Q54 QUADRA 50 JI-M34 MAXi 30 2000 arent improvement over AM sets PCM stuff shows some promise better times can lick 31M problem fly Canada can check 20 kHz column saw generally poorer performance 20 kHz spacing expected Hz column misleading got data using transmitters approxi mately equal power case PRS MRS power can up 400 times larger radios wide open interference Yet Ive noted before havent interference reports traced may save some letter-writing tell used old Ace RC Silver Seven built kit AM single-con version receiver tests Tables 2 3 4 Test 14 Simprop PCM-20 am withholding rest names because dont wish set myself up some kind consumers testing service will say 1984 1985 systems did what always work something out test tell you can donduct interpret own tests Now go has debate going about What 1988 Some folks favor splitting band FM-Only preserve Anything Goes area No doubt data will used support positions both sides argument same time may some will data hand start hunting FM scalps Now play nice boys No matter slice splitting band bound reduce number channels use due 31M problems would counterproductive future discussions FCC position remains wit Keep whole band open forms modulation FM can beand will have bedeveloped resist AM because AMA members wont abandon AM systems until/unless FM sets come market offer clearly superior per formance rejecting forms AM interference including dirt-bike ignition noise high-voltage transmission-line cor ona arcing lightning etc However smart thing now may change AMA Phase-k Plan way minimizes 31M Before closing column must ac knowledge help provided long time friend Bob Aberle collected some equipment spent hours performing tests discussing results Without Bob would have stopped writing column longtime ago also have thank Bill Hershberger has saying years 31M major problem must solved finally listened Bill must also thank Ace RC advertisers sug gesting 200-fcot baseline started us off expedition Kraft Systems providing synthesized RF modules make FM testing easy Tower Hobbies loaned us pair AM transmitters some special crystals made AM testing easier Thanks well friends entrusted us equipment test column has led us some unusual conclusions may stir up small amount controversy invitenay challenge disprove data and/or conclusions orderto will have work harder did will have put some hard test data table Opinions worthless analyses no better assumptions George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 responding advertisers mention read about Model Aviation RC Scale/Wischers Continued page 49 Large flying-type models emphasize realism air rather ground dominant rally dont see visitors creeping around knees examine finely-executed detail ing except few rare models Paul Weigand brought Toledo prize-winner K-W rally TA-size Culver Dart flies very well mildly aerobatic its Quadra 50 engine Toledo winners real ly fly Formed windshields Fastening simple sloping windshields curved direc tion can become battle stiff material fights remain flat Glue alone may hold throughout models life Heat-forming 031-inthick acrylic butyrate sheet takes fight out material fastening becomes simple process However windshield isnt formed shape fits closely gluing job can still quite frustrating preferred process begins paper template paper draped over fuselage windshield frame rough ly marked pencil determine ap proximate outline Fold paper along its centerline check equal shapes both halves cut scissors around outline Fit paper template fuselage satisfactory make sec ond third template until shape correct always folding along its centerline certain equal left right halves have never made paper template correct first time Next step duplicate template 010 litho-plate aluminum Form template bending using large-diameter wood dowels rolling pin kitchen fits fuselage Continued page 136 132 Model Aviation 2000 -4: DIA 63 4 728 3 3* 4 5 6 83 3&3/4 4 5 6 8 8*4 5 6 6* 7 94 5 6 6* 7 7* 104 5 6 6W 6* 7 8W 106EW 114 6 T 7* Ti T&3/4 8 116EW iii6 7 125 5W 6 1356 1456 155 6 166 7 FOUR-CYCLE TAILORED HELICAL PITCH 266*T8 46 7 T*8 46 7 Ti8 1567 1667 PYLON RACING 75N 5*N 8&3/46* 6&3/4 7 Ti T&3/4 97 Ti T&3/4 W Wide blade EW Extra wide N PRICE $139 $169 *179 $189 $189 $199 $209 $209 $219 $219 $259 $329 $429 $629 $919 $279 $359 $459 $659 $949 $259 $269 $269 Narrow ALL PRICES ARE POSTPAID ON ORDERS OVER $10 ORDERS SHIPPED FIRST CLASS MAIL WITHIN 24 HRS CALIFORNIA RESIDENTS ADD 6% TAX ADD 8100 IF YOU WANT INSURED MAIL ORDER BY MAIL OR PHONE 714 830-5162 SORRY NO COD VISA & MASTERCARD WELCOME DEALER INQWRIES INVITED SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES COMPLETE INVENTORY OF CUSTOM & STOCK PARTS HARD-TO-FIND ITEMS SUCH AS CUSTOM NEEDLE VALVES RACING WHEELS QUICK FILLS SOLID CONTROL LINES ETC CUSTOM FOX COMBATS HARD CHROME PLATING RC Scate/Wischers Continued page 132 windshield frame snugly edges no gaps should rest place need light force hold its edges down dummy windshield having outline curves match desired finished product exactly second OlO-in-thick rectangular aluminum sheet slightly larger template now formed bending fit templates curved shape using same technique shaping over wood dowels edges sheet stapled wood plank having width dimension equal fuselage width cases front rear edges aluminum will describe dissimilar arcs depending upon fuselage frame shapes now have semi-rigid form will retain its shape form placed kitchen oven set 250 0F Cut piece acrylic sheet same dimensions aluminum form Balance acrylic teeterboard fashion crest form about minute acrylic will soften slowly drape over aluminum until fits shape Too hot plastic may blister Too cool wont drape completely Remove form oven let cool minute two windshield shape will fr permanent Use paper template felt-tip pen trace outline plastic Dont try cutting acrylic scissors because material too brittle will almost certainly crack unwanted direc tions use cutoff disc Dremel grinder cut along line dress edge carefully sandpaper block slip sandpaper new windshield could mined Now set windshield fuselage check uniformity overlap around its edges Sand grind necessary aluminum form bent correctly windshield should fit perfectly bend aluminum corrected shape re-heat plastic over form will take new shape Cement windshield place very narrow ribbon Wllhold R/C-56 glue around edges Only few tabs masking tape needed hold glue dries considerable time because glue trapped between air tight surfaces Mask paint edges may seem lengthy process make simple windshield has no compound curves ps out lined quickly completed gxidthe total time shouldnt thai couple hours reward tight-fitting accurately-shaped windshield having no blemishes can fitted t1 fuselage usual struggle small amount glue used mount wind shield will tend stay needed rather oozing away spoil finish inside Paint around edges com pletely cover glue line large windshield shown photos 75-in-wide fuselage Overall plastic dimensions 5 x 125 acrylic material purchased local plastic supplier large sheet 4 x 6 feetenough lifetime modeling protected both surfaces selfadhesive paper must removed before heating Butyrate sheet can pur chased smaller sizes 85 x 17 17 x 17 see Sig catalog has no protective paper less expensive may have striations spoil clarity softer therefore vulnerable scratching Acrylic can cleaned dope thinner Butyrate dissolved thinner contact must avoided Both types material affected cyanoacrylate tends fog Butyrate withstands impact better acrylic may shatter particularly cutting trimming process Butyrate can cut shears Acrylic can cut like glass scoring cracking off along table edge before removing paper backing Curved lines acrylic best cut Dremel cutoff disc can done before after removal back ing models built past ten years have used acrylic canopies windshields canopy made buty rate 15 years ago has problems warping Models dont ordinarily live long 136 Model Aviation OUH IN VNTUH V AVHAi OVER 8000 PROPS! SPECIAL PRO SERIES PITCH SOCIETY OF ANTIQUE MODELERS MA TERIALS REPLICA OR WICK ENGINES IGNITION CCESSORIES CARBON FIBER * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $225 Cat No 202Air Cleaner Fine$225 Replacement Inserts Cat No 104 PkI2 lnsertsCoarse $195 Cat No 204 Pk/2 Inserts Fine $195 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Add 75 shippingMichigan residents add 4% sales tax Bru Line Industries Inc PO Box 3786 Center Line Michigan 48015 As alternative method acrylic can cut its final outline shape before heating windshield already complete soon cools An advan tage method cutting sanding edges can done paper protection place plastic must precisely centered aluminum form before heating assure exact symmetry latter can bit tricky plastic tends slide easily rotate aluminum could result asymmetrical windshield Marking centerlines plastic form will help keep aligned properly On-board glow ignItion Product reviews dont often appear column occasionally item special interest RC Scale modelers comes attention Ace R/G has Nylite III glow plug lighter on-board ignition throttle servo near idle position adaptable twins two-cylinder engines system consists micro switch box adjustable cam attached throttle pushrod can set close circuit 1200 mAh cell point servo travel Ignition can applied lowest idle other selected engine speed switch box can mounted anywhere model either between servo throttle elsewhere An on-off switch also supplied pre vent discharge battery engine stopped its throttle idle position Switched OFF posi tion external starting battery can plugged charging socket Switched ON starting can done internal cell neat feature lowprofile remote headlock glow plug will fit inside tight cowling Also furnished system charger on-board cell adapter connection external starting battery charging socket Ace R/G has thought detail make workable system course modelers insist upon hidden receiv er switch includes us will now have another switch charging socket hide inside cowl under hatch complete system adds less four ounces model weight provides de pendable slow idle inverted engines four-strokes positive response throttle opened possibility starting need external power source Having used on-board glow cell several older models merit idea recognized 1200 mAh cell can used nose weight ballast tail-heavy situation Nylite II available two glow plugs kit form well assembled Scale instruments peer inside Bob Nelitz Cub T-craft cockpit instrument panel stands out being alto gether realistic having authenticallyreproduced instrument faces Seen K-W Scale Rally Bob has produced print ed Y4- 1A-scale instruments four col ors Background basic black Numerals graduation lines yellow red green maximum minimum mark ings detailed instrument faces heavy paper having lettering repro duced scale smallest inscriptions readable magnifying glass Obviously max mm indications will apply kind instruments card Suggested installation methods included Bobs address Cedarbridge Scale RR4 Creemore Ontario Canada LOM 100 Bob Dolly Wiseher S-221 Lapham Peak Rd Delafield WI 53018 RC Aerobatics/Van Putte Continued page 51 use four-cycle engines continue boom sport fliers Theres vast pool buyers four-cycle engines like power fuel economy pleasant sound possess number con versions four-cycle engines ignition will probably increase too because end up benefits four-cycle engine plus cheaper fuel Im always lookout new prodContinued page 141 January 1986 137