THIS PART series differs somewhatKRC Electric Fly wanting know towant review installment Additional earlier parts two ways First in-put stuff Its amazing manyinformation provided mounting stallations lengthy topic requiring twoeager observers someone re-motors speed reducers attached Howissues cover thoroughly month wemoves wing reveal hidden secretsever other instances will present Section next month wellof its doneseries examples known quite have Section Bworkable surely second way part series1 Motor mounts topic partiallygood schemes imaginative modeler differs others much theillustrated Part 2 October 1983 Thatshould able envision variations information contained photos andsection devoted motors few specific comments order sketches format prompted theinstallations some aspects mountingWhen using machine screws front endlarge number people visiting annualfitted nicely discussion mightbell motor sure protrude Installations Electrics interest lots folks judging number guys eager see whats inside fuselage whenever wing removed important topic being covered issue next Part 5 U Bob KopskiAll about Left Removing cowl Dan Mittens 54-in Taylorcraft reveals motor plastic mount Plane needed thrust adjustments right down easily done kind mount Note air holes cowl front former center windshield Right Belt-drive installation Sport Scale J-3 Astro 15 held structural mount consisting Lite Ply formers fore aft assembly held against front former three metal tabs No 2 sheet metal screws 9 3 6 oclock positions shaped balsa nose block slips over front keyed place held wrap %-in-wide yellow auto trim tape photos author Air exit holes bottoms two different planesSpectra left Friendly right Spectra has extra holes allow shifting battery changing CG adding cells unused battery location filled foam block outline iron-on cloth rein forcement patch can seen under MonoKote covering two lengthwise black stripes glider skid material Ace R/C slit two pieces Friendly fuselage bottom has lots ventilation large 12-cell 12 Ah pack holes located line up spaces between cells plane also uses cloth reinforcing material around battery compartment beneath landing gear attachment 56 Model Aviation too far motor assembly chipped field magnets scored armature windings can result Check latter slight forward pull armature like props thrust would cause sure motor sembly reasonably well-supported front rear along its length fabricating structural type mount may easier bit oversize supporting former holes motor tube di ameter motor can bushed up few wraps plastic tape front rear achieve snug fit prefer /4-inch-wide automobile trim striping tape sure motor cannot rotate Use front endbell mounting holes clamps plastic motor mounts setscrews help assure Always sure motor vent holes free clear cooling air can easily flow through Some exit air fuse lage necessary V4-in-dia hole fuselage bottom good situations exit vent air has no other path take Most installations have rear motor vents located motor air merges other airflow going through battery Install motor accessible Sometimes maintenance required sure prop adapter setscrew tightpref erably against flat armature shaft 2 Battery mounts Last months Part 4 pic tured variety batteries obvious wide range battery shapes requires correspondingly wide range enclosures often battery single most-massive component model should adequately supported contained restrained battery ever starts mov ing its likely anything model structure will stop thought mind wise pay little extra attention fuselage struc ture around battery always use iron-on cloth patching material around outside fuselage reinforce battery area sometimes other areas like landing gear available several brands colors use white Bondex brand product can purchased variety departRECOMMENDED BATTERY INSTALLATION______ 0I i 060 __________0CELL~ 1/16 PLY OR l/l6HARD BALSA AIR OUT THRU BATTERY WITH IRON-ON CLOTH METAL OR PLASTIC MOTOR TOP VIEW MOUNT STRAPS USE 4-40 X3/16 IN MOTOit #2 SHEET METAL IN FORMER %NYWOOD 12 RECOMMENDED MOTOR MOUNT CUT SNUG-FITTING HOLES IN /8 PLY FORMERS TO SUPPORT MOTOR OFFSET MOTOR HOLE IN REAR FORMER FOR DESIRED SIDE AND/OR DOWN THRUST ISHOWN EXAGGERATED HERE SIDE VIEW III 12 NOTE REAR FORMER MAY BE POSI TIONED AT OR AT 2 IN FRONT OR IN BACK OF MOTOR COOLING HOLE BE SURE THERE IS I/2DIA AIR EXIT HOLE MIN IN FUSE BOTTOM January 1984 57 left air-scoop/hatch Persuader lifted Wide tape wing leading edge posi tion forms hinge A-in strip tape holds closed Elevator motor control servos Persuader shown picture above servos receiver 70 mAh radio battery pack visible held place double-sticky tape Velcro lever switch held atop servo double-sticky foam tape Lightweight mountings desirable Electrics three pictures show installation Leisure gear drive nose Playboy motor rests structural mount kept rotating single screw blind nut front former shaped balsa nose block keyed position held transparent tape Motor supporting surfaces kind installation must hardwood balsa isnt strong enough Left Balsa box added interior Playboy fuselage holds radio stuff motor battery Note cooling holes bottom box well fuselage bottom Theres reinforcing cloth wrap around box bottom motor battery will located though may show magazine reproduction picturel models box contents simply rest sheet fuselage bottom sides Right Heat-activated cloth patch material being applied over around ply landing gear mount Paper towel protects household iron ment sewing stores Follow direc tions regarding temperature use paper towel between household iron cloth keep heat-activated stickies off iron cloth adds tremendous strength plane has somewhere motor batteries constrained fuselage between sides front back formers Make front former very strong further secure cloth strip has dipped white glue plaster corner formed junction fuselage sides former larger heavier batteries use reinforcing tech nique joints inside balsa battery box Use cloth strips about I-in wide cut material like mans handkerchief Smear glue smoothly press soaked cloth firmly blot excess glue let dry thoroughly battery container floor can very hard cross-grained balsa /s ply As Distribution TotalSystem WeightWeight 33 oz185 oz 38ozl9oz 68oz32oz 99ozS3oz 16 oz 35oz 35 oz 48 oz 27 oz 20 oz Sys 56 53 47 54 45 60 70 60 47 49 examples use /6 balsa under six-cell 12 Ah packs plywood under larger packs Sometimes make battery box longer necessary distance between front rear formers allow fore-aft positioning battery aid balancing model empty space filled foam block Also use thin /x /16 foam food carton material snug up fit tween fuselage sides battery Finally battery box can air box too often extend fore aft formers high enough part wing saddle complete seating tape Thus wing place cooling air has no place go out through battery course no other leak fuse lage air has go through battery anyway Use good judgment Study il lustrations general idea am partial rectangular shaped battery folks prefer flat pack often install fuselage bottom using hatch door access Vari ous other mounting cooling schemes illustrated everincreasing number electric-powered plane plans MA 58 Model Aviation Left A peek inside cabin Playboy six-cell rectangular battery pack wedged between balsa formers thin plastic foam food carton Lever switch double-sticky-taped servo servo arm actuates lever Wires switch connected single conduc tor crimp-on connectors Servos caseless receiver held balsa sheet along sides double-sticky-backed Velcro Rudder elevator servos pressed apart wedged-in foam block Note thread binding screwed-in wire ends balsa pushrods Small lightweight radio wiring harness switch charging connector almost hide servos Right air-scoop/hatch removed John Hickeys twin Jack Rabbit can see flat-pack battery installation Air exit aft John has multiple battery packsflies charges other publications However too often feel just tad uncomfortable small amount cooling designs appear have usually form air scoop wing leading edge removable access hatch forward wing scoop typically least % high about width fuselage bigger battery larger air inlet passage should cases simply cant get sufficient cooling airflow no choice remove battery after flight al low cool touched last month 3 Radio equipment will become evident later single important factor electric-powered planes often weight mind basic importance construct model least possible weight consistent reason able strength durability large block ounces RC model course radio equipment Since radio motive power system often interrelated represent equipment installed modelprobably about same time Ill get area now RECOMMENDED MOTOR MOUNT strongly recommend use increas ingly-popular miniature receivers batteries servos Since usually several servos model lets start Electric applications smallContinued page 153 CUT SIDE AND/OR DOWN SOFT BALSA BLOCKTHRUST INTO FUSE OR HOLE SAW THROUGHFRONT tolA TO SUIT MOTOR SNUG FIT -~ 3 LINE BALSA HOLE. WITH 1/64 PLY 4 GLUE BLOCK TO PROP DRIVE FRONT OF FUSE 5 CARVE TO STREAM LINED SHAPE 6MOTOR INSERTS THROUGH TOP\- 1/2 DIA HATCH REMOVE FIRST L......T 11/2UST 7 HOT STUFF 8 BAKING SODA 2 GOLDBERG NYLON RIGHT ANGLES TO PLYWOOD LINR tRECESS MOTOR ABOUT 5/16 DRILL I/B HOLES IN NYLON ANGLES TO MATCH TAPPED MOTOR HOLES USE 4-4OxI/4 SCREWS THROUGH NYLON ANGLES INTO MOTOR BE SURE MOTOR REAR COOLING HOLES ARE CLEAR FULL-SIZE COOLING AIR EXIT HOLE PATTERN I13 c LO~OO 6CELLI2 AH 00 0 0 Th 4 0 ~0 0 0 0 0 12 CELL 12 AH January 1984 59 Spinks Akromaster $20995 Add $1000 postagelhandling * 90 Span 15-17 lbs * Fiberglass Cowl/Pants * Built-up Fuselage * Foam Wing * Quadra Power GIANT FUN SCALE AIRCRAFT Immediate Delivery DEALER INQUIRIES WELCOME Send $100 catalogue perfectly balanced prop exactly same length center tip blade exactly same pitch blade Get right rpm should have very competitive racer Now its up Oh way might have weiner roast just bonfire props cannot use kidding aside once find some good props will guard life So after race put upthen bal ance extra props use practice hope information some help comes no guarantees will go Quarter Midget Formula props next issue See next month Bill Hager 706 Glen Haven Dr Conroe lx 77302 Electrics/Kopski Continued page 59 est available servos will bequite satis factory say because have seen exceptions larger and/or faster planes can have considerable load control surfaces adequate servo power neces sary Some judgment always called no matter what powers plane present installations use Bantam Midget mechanics others use locally include D&R Micro mechanics Futaba S-20s World 522s Cannon Micro others mechanics mentioned above incorporated servos including Ace Litco Cannon Charlies several others thing characterizes servos under ounce weight thats key Electrics use 250 mAh flight packs smaller 250s go glider types long flight times large ships acrobatic planes both latter have heavier servo loads Smaller packs quite practi cal provided keep track flying time aerobatic Persuader uses 70 mAh cells taken GE nine-volt Ni-Cd semblies consumer products flew plane bench continuously moving ailerons elevator 22 mm before battery ran down Persuader flights aver age 4 5 minutes surfaces arent continuous motion fly plane four times carefully ru pack down rest way fast-charge field L1LO SPIHllR 5Y1 flCE WAN TED IHE STI RT FELLOW V/HO TO UY MY PLRiNE LL ROUND2 Fokker Triplane 4 Flight TestedContest Proven Rhinebeck 82 Results CamelFirst Triplanes5 awards Scale 2 gine 60 Send 75C latest price list & literature VK MODEL AIRCRAFT CO 4350 Arondale Dr Williamsville NY 14221 716-6324838 Consumers Guide RC Aircraft Products 242 Pages Photos & Descriptions over 2000 RC Aircraft Products fered 176 companies Outstanding Value Only $495 plus shipping* Send $660 Includes ups handling Foreign orders send $786 US surface mail $1049 US air mail Catalogs tram companies would cost over 10 times price outstanding reference book product lines nearly major man ufacturer distributor importer well unique interesting products small companies seldom advertise national modeling magazines July 83 Model Aviation See Local Dealer Order Direct Send check money order Consumera Guide 150 Ott St Harrisonburg VA 22801 January 1984 153 PO Box 9044 Little Rock Arkansas 72219501J 224-8044 nundreds New Products TIGER TAIL 4 Ron Chidgeys latest A best series little larger lighter slower retains honest flight character tistics its predecessors Especially recommended sportsman ad vanced pattern also good choice tor turn-around pattern Plans construction hints -$995 WELLER 3 BLADE PROP very stiff molded fiberglas propellor trom England Its efficient design allows substantial reduction noise level actually improving per formance $2000 NEW CLAMP IT FOREVER STAINLESS STEEL PIPE CLAMPS Light strong Low-profile seiflocking 3116 width wont cut silicone couplers Pkg 4 clamps -$295 flights Persuader weights 33 oz cobalt 05 motor six 12 Ah cells three servos Receivers generally weigh between 1 2 oz some planes remove plastic case save about neaky overweight item flight pack can wiring harness Some surprisingly heavy large switches complete bulky plastic covers lots wire Try some thing lighter Radio installation Electrics relatively easy since minimal vibration usually light mechanical loads Ive elimi nated foam packing am getting away servo rails trays smaller planes double-sticky foam servo mounting tape double sticky Velcro Radio Shack holds servos receiver flight battery attaching double stickies balsa first coat balsa model airplane cement such Ambroid let dry fill wood make sound surface sticky stick case servos stock fuselage sides opposite other put light balsa foam block between keep servos presssed sides prevent rocking pushrod loads feel comfortable con ventional servo-mounting techniques sug gest making servo tray out /v-in Lite Ply using tray sort horizon tal fuselage former during assembly does wonders alignment like Golden Rod small balsa pushrods planes 3/i sq firm balsa rods work very well bind end heavy thread drill #50 hole end center Thread hole 2-56 tap put CyA threads Retap standard pushrod fittings can screwed inadjustable too least weight maximize use pushrod mate rial minimize length metal fitNEW NEW WING TUBE & SOCKETS 1 dia aluminum alloy tubing plug wings Included pair special slip-fit phenolic sockets build wing-structure 2024 alum tube 24 long socket 12 long S8951se1 / - Sleeve Puller -$795 Bearing Puller -$695 ENGINE SLEEVE & BEARING PULLER Pull tight sleeves bearings easily damage Cone cone expanding brass ring grips sleeve bearing ID new 60s 17MM rear bearing *Special* Both $1395 See Dealer Order Direct Include 75 Per Item f UPS Gator RIC Products Pompano Dr G3713 P ensacolaFL 32514 Phone AC t904 476-8639 tings end suggest think terms quarter ounces Four make up ounce four make up quarter-pounder 4 Installation weight purpose following information give some preliminary guidelines examples elec tric power system weight Part 7 well look finished plane weight size power flight times As general rule thumb weight power system motor battery wiring switch prop typical RC Electric about 50% total_place weightwith range limits usually between 40% 60% radio plane make up rest total Table shows some examples As further guideline electricpowered gliders generally have wing load ings 10-11 oz/sq ft aerobatics ships range 12-22 sport Scale about 12-14 Well look particulars future section cant wait can work backwards estimate wing area examples Table 1 5 Look pictures sketchesand compare examples text Since come installations next month should keep part handy another look time Also some illus trations coming up Section B can viewed standpoint text well Speaving next month youll find Part 6 loaded detailed information other things needed make installation completeswitches connectors fuses wir ing etc After well discuss planes flying previous parts will come together fairly extensive tabulation known performers complete statisti cal performance information 154 Model Aviation plan wrap up sorts most-often-asked questions will reviewed Also some incidentals oversights throughout will included may wondering Spectra construction article still planned conclusion series Its just end near once perceived Please forward questions SASE author Bob Kopski 25 West End Dr Lansdale PA 19446 realize have times past should have responded bit faster apologize However continue resolute intent answer expedient fashion conditions permitting FF Duration/Meuser Continued paoe 61 models sorts parts accessories miscellaneous goodies small rubberpower CO-2 power models has just troduced new line molded plastic wheels Molded mind vacuumformed As result detail crystalclear neatly-reinforced builtin hub Three sizes currently available hope therell 3/4 diameters weighing respectively 04 06 07 grams price 99tt pack eight size Actually wheel sort halfwheel flip side concave used as-is look pretty good Scale buffs will quick realize look lot realistic two wheels glued together back-to-back way come out rather fat-looking just right some applications prefer thinner look just scrub wheel around piece 80-grit garnet paper few sec onds before gluing halves together dont like looks six-spoke hub glue paper disc pattern preference local dealer doesnt carry tell him Meuser says hes shmoe order direct Peck send $150 Pecks larger-than-ever catalog address PO Box 2498 -La Mesa CA 92041 As sort gentle hint theyd like business catalog comes free first order word wise - Miter boxes revisited Ive published sev eral methods cutting gussets using special home-brew jigs Nat Comfort expressed amusement seeing modelers make such elaborate efforts perform such simple operation points out modelers already own razor saw small miter boxes available X-Acto FAI Model Supply others Using balsa stripstock appropriate size flip-cutflip-cut sequence can up ears gussets watching evening news So whats fuss Well building Half-A larger model using medium-to-hard balsa saw will cut neatly gumming NEW
Edition: Model Aviation - 1984/01
Page Numbers: 56, 57, 58, 59, 153, 154
THIS PART series differs somewhatKRC Electric Fly wanting know towant review installment Additional earlier parts two ways First in-put stuff Its amazing manyinformation provided mounting stallations lengthy topic requiring twoeager observers someone re-motors speed reducers attached Howissues cover thoroughly month wemoves wing reveal hidden secretsever other instances will present Section next month wellof its doneseries examples known quite have Section Bworkable surely second way part series1 Motor mounts topic partiallygood schemes imaginative modeler differs others much theillustrated Part 2 October 1983 Thatshould able envision variations information contained photos andsection devoted motors few specific comments order sketches format prompted theinstallations some aspects mountingWhen using machine screws front endlarge number people visiting annualfitted nicely discussion mightbell motor sure protrude Installations Electrics interest lots folks judging number guys eager see whats inside fuselage whenever wing removed important topic being covered issue next Part 5 U Bob KopskiAll about Left Removing cowl Dan Mittens 54-in Taylorcraft reveals motor plastic mount Plane needed thrust adjustments right down easily done kind mount Note air holes cowl front former center windshield Right Belt-drive installation Sport Scale J-3 Astro 15 held structural mount consisting Lite Ply formers fore aft assembly held against front former three metal tabs No 2 sheet metal screws 9 3 6 oclock positions shaped balsa nose block slips over front keyed place held wrap %-in-wide yellow auto trim tape photos author Air exit holes bottoms two different planesSpectra left Friendly right Spectra has extra holes allow shifting battery changing CG adding cells unused battery location filled foam block outline iron-on cloth rein forcement patch can seen under MonoKote covering two lengthwise black stripes glider skid material Ace R/C slit two pieces Friendly fuselage bottom has lots ventilation large 12-cell 12 Ah pack holes located line up spaces between cells plane also uses cloth reinforcing material around battery compartment beneath landing gear attachment 56 Model Aviation too far motor assembly chipped field magnets scored armature windings can result Check latter slight forward pull armature like props thrust would cause sure motor sembly reasonably well-supported front rear along its length fabricating structural type mount may easier bit oversize supporting former holes motor tube di ameter motor can bushed up few wraps plastic tape front rear achieve snug fit prefer /4-inch-wide automobile trim striping tape sure motor cannot rotate Use front endbell mounting holes clamps plastic motor mounts setscrews help assure Always sure motor vent holes free clear cooling air can easily flow through Some exit air fuse lage necessary V4-in-dia hole fuselage bottom good situations exit vent air has no other path take Most installations have rear motor vents located motor air merges other airflow going through battery Install motor accessible Sometimes maintenance required sure prop adapter setscrew tightpref erably against flat armature shaft 2 Battery mounts Last months Part 4 pic tured variety batteries obvious wide range battery shapes requires correspondingly wide range enclosures often battery single most-massive component model should adequately supported contained restrained battery ever starts mov ing its likely anything model structure will stop thought mind wise pay little extra attention fuselage struc ture around battery always use iron-on cloth patching material around outside fuselage reinforce battery area sometimes other areas like landing gear available several brands colors use white Bondex brand product can purchased variety departRECOMMENDED BATTERY INSTALLATION______ 0I i 060 __________0CELL~ 1/16 PLY OR l/l6HARD BALSA AIR OUT THRU BATTERY WITH IRON-ON CLOTH METAL OR PLASTIC MOTOR TOP VIEW MOUNT STRAPS USE 4-40 X3/16 IN MOTOit #2 SHEET METAL IN FORMER %NYWOOD 12 RECOMMENDED MOTOR MOUNT CUT SNUG-FITTING HOLES IN /8 PLY FORMERS TO SUPPORT MOTOR OFFSET MOTOR HOLE IN REAR FORMER FOR DESIRED SIDE AND/OR DOWN THRUST ISHOWN EXAGGERATED HERE SIDE VIEW III 12 NOTE REAR FORMER MAY BE POSI TIONED AT OR AT 2 IN FRONT OR IN BACK OF MOTOR COOLING HOLE BE SURE THERE IS I/2DIA AIR EXIT HOLE MIN IN FUSE BOTTOM January 1984 57 left air-scoop/hatch Persuader lifted Wide tape wing leading edge posi tion forms hinge A-in strip tape holds closed Elevator motor control servos Persuader shown picture above servos receiver 70 mAh radio battery pack visible held place double-sticky tape Velcro lever switch held atop servo double-sticky foam tape Lightweight mountings desirable Electrics three pictures show installation Leisure gear drive nose Playboy motor rests structural mount kept rotating single screw blind nut front former shaped balsa nose block keyed position held transparent tape Motor supporting surfaces kind installation must hardwood balsa isnt strong enough Left Balsa box added interior Playboy fuselage holds radio stuff motor battery Note cooling holes bottom box well fuselage bottom Theres reinforcing cloth wrap around box bottom motor battery will located though may show magazine reproduction picturel models box contents simply rest sheet fuselage bottom sides Right Heat-activated cloth patch material being applied over around ply landing gear mount Paper towel protects household iron ment sewing stores Follow direc tions regarding temperature use paper towel between household iron cloth keep heat-activated stickies off iron cloth adds tremendous strength plane has somewhere motor batteries constrained fuselage between sides front back formers Make front former very strong further secure cloth strip has dipped white glue plaster corner formed junction fuselage sides former larger heavier batteries use reinforcing tech nique joints inside balsa battery box Use cloth strips about I-in wide cut material like mans handkerchief Smear glue smoothly press soaked cloth firmly blot excess glue let dry thoroughly battery container floor can very hard cross-grained balsa /s ply As Distribution TotalSystem WeightWeight 33 oz185 oz 38ozl9oz 68oz32oz 99ozS3oz 16 oz 35oz 35 oz 48 oz 27 oz 20 oz Sys 56 53 47 54 45 60 70 60 47 49 examples use /6 balsa under six-cell 12 Ah packs plywood under larger packs Sometimes make battery box longer necessary distance between front rear formers allow fore-aft positioning battery aid balancing model empty space filled foam block Also use thin /x /16 foam food carton material snug up fit tween fuselage sides battery Finally battery box can air box too often extend fore aft formers high enough part wing saddle complete seating tape Thus wing place cooling air has no place go out through battery course no other leak fuse lage air has go through battery anyway Use good judgment Study il lustrations general idea am partial rectangular shaped battery folks prefer flat pack often install fuselage bottom using hatch door access Vari ous other mounting cooling schemes illustrated everincreasing number electric-powered plane plans MA 58 Model Aviation Left A peek inside cabin Playboy six-cell rectangular battery pack wedged between balsa formers thin plastic foam food carton Lever switch double-sticky-taped servo servo arm actuates lever Wires switch connected single conduc tor crimp-on connectors Servos caseless receiver held balsa sheet along sides double-sticky-backed Velcro Rudder elevator servos pressed apart wedged-in foam block Note thread binding screwed-in wire ends balsa pushrods Small lightweight radio wiring harness switch charging connector almost hide servos Right air-scoop/hatch removed John Hickeys twin Jack Rabbit can see flat-pack battery installation Air exit aft John has multiple battery packsflies charges other publications However too often feel just tad uncomfortable small amount cooling designs appear have usually form air scoop wing leading edge removable access hatch forward wing scoop typically least % high about width fuselage bigger battery larger air inlet passage should cases simply cant get sufficient cooling airflow no choice remove battery after flight al low cool touched last month 3 Radio equipment will become evident later single important factor electric-powered planes often weight mind basic importance construct model least possible weight consistent reason able strength durability large block ounces RC model course radio equipment Since radio motive power system often interrelated represent equipment installed modelprobably about same time Ill get area now RECOMMENDED MOTOR MOUNT strongly recommend use increas ingly-popular miniature receivers batteries servos Since usually several servos model lets start Electric applications smallContinued page 153 CUT SIDE AND/OR DOWN SOFT BALSA BLOCKTHRUST INTO FUSE OR HOLE SAW THROUGHFRONT tolA TO SUIT MOTOR SNUG FIT -~ 3 LINE BALSA HOLE. WITH 1/64 PLY 4 GLUE BLOCK TO PROP DRIVE FRONT OF FUSE 5 CARVE TO STREAM LINED SHAPE 6MOTOR INSERTS THROUGH TOP\- 1/2 DIA HATCH REMOVE FIRST L......T 11/2UST 7 HOT STUFF 8 BAKING SODA 2 GOLDBERG NYLON RIGHT ANGLES TO PLYWOOD LINR tRECESS MOTOR ABOUT 5/16 DRILL I/B HOLES IN NYLON ANGLES TO MATCH TAPPED MOTOR HOLES USE 4-4OxI/4 SCREWS THROUGH NYLON ANGLES INTO MOTOR BE SURE MOTOR REAR COOLING HOLES ARE CLEAR FULL-SIZE COOLING AIR EXIT HOLE PATTERN I13 c LO~OO 6CELLI2 AH 00 0 0 Th 4 0 ~0 0 0 0 0 12 CELL 12 AH January 1984 59 Spinks Akromaster $20995 Add $1000 postagelhandling * 90 Span 15-17 lbs * Fiberglass Cowl/Pants * Built-up Fuselage * Foam Wing * Quadra Power GIANT FUN SCALE AIRCRAFT Immediate Delivery DEALER INQUIRIES WELCOME Send $100 catalogue perfectly balanced prop exactly same length center tip blade exactly same pitch blade Get right rpm should have very competitive racer Now its up Oh way might have weiner roast just bonfire props cannot use kidding aside once find some good props will guard life So after race put upthen bal ance extra props use practice hope information some help comes no guarantees will go Quarter Midget Formula props next issue See next month Bill Hager 706 Glen Haven Dr Conroe lx 77302 Electrics/Kopski Continued page 59 est available servos will bequite satis factory say because have seen exceptions larger and/or faster planes can have considerable load control surfaces adequate servo power neces sary Some judgment always called no matter what powers plane present installations use Bantam Midget mechanics others use locally include D&R Micro mechanics Futaba S-20s World 522s Cannon Micro others mechanics mentioned above incorporated servos including Ace Litco Cannon Charlies several others thing characterizes servos under ounce weight thats key Electrics use 250 mAh flight packs smaller 250s go glider types long flight times large ships acrobatic planes both latter have heavier servo loads Smaller packs quite practi cal provided keep track flying time aerobatic Persuader uses 70 mAh cells taken GE nine-volt Ni-Cd semblies consumer products flew plane bench continuously moving ailerons elevator 22 mm before battery ran down Persuader flights aver age 4 5 minutes surfaces arent continuous motion fly plane four times carefully ru pack down rest way fast-charge field L1LO SPIHllR 5Y1 flCE WAN TED IHE STI RT FELLOW V/HO TO UY MY PLRiNE LL ROUND2 Fokker Triplane 4 Flight TestedContest Proven Rhinebeck 82 Results CamelFirst Triplanes5 awards Scale 2 gine 60 Send 75C latest price list & literature VK MODEL AIRCRAFT CO 4350 Arondale Dr Williamsville NY 14221 716-6324838 Consumers Guide RC Aircraft Products 242 Pages Photos & Descriptions over 2000 RC Aircraft Products fered 176 companies Outstanding Value Only $495 plus shipping* Send $660 Includes ups handling Foreign orders send $786 US surface mail $1049 US air mail Catalogs tram companies would cost over 10 times price outstanding reference book product lines nearly major man ufacturer distributor importer well unique interesting products small companies seldom advertise national modeling magazines July 83 Model Aviation See Local Dealer Order Direct Send check money order Consumera Guide 150 Ott St Harrisonburg VA 22801 January 1984 153 PO Box 9044 Little Rock Arkansas 72219501J 224-8044 nundreds New Products TIGER TAIL 4 Ron Chidgeys latest A best series little larger lighter slower retains honest flight character tistics its predecessors Especially recommended sportsman ad vanced pattern also good choice tor turn-around pattern Plans construction hints -$995 WELLER 3 BLADE PROP very stiff molded fiberglas propellor trom England Its efficient design allows substantial reduction noise level actually improving per formance $2000 NEW CLAMP IT FOREVER STAINLESS STEEL PIPE CLAMPS Light strong Low-profile seiflocking 3116 width wont cut silicone couplers Pkg 4 clamps -$295 flights Persuader weights 33 oz cobalt 05 motor six 12 Ah cells three servos Receivers generally weigh between 1 2 oz some planes remove plastic case save about neaky overweight item flight pack can wiring harness Some surprisingly heavy large switches complete bulky plastic covers lots wire Try some thing lighter Radio installation Electrics relatively easy since minimal vibration usually light mechanical loads Ive elimi nated foam packing am getting away servo rails trays smaller planes double-sticky foam servo mounting tape double sticky Velcro Radio Shack holds servos receiver flight battery attaching double stickies balsa first coat balsa model airplane cement such Ambroid let dry fill wood make sound surface sticky stick case servos stock fuselage sides opposite other put light balsa foam block between keep servos presssed sides prevent rocking pushrod loads feel comfortable con ventional servo-mounting techniques sug gest making servo tray out /v-in Lite Ply using tray sort horizon tal fuselage former during assembly does wonders alignment like Golden Rod small balsa pushrods planes 3/i sq firm balsa rods work very well bind end heavy thread drill #50 hole end center Thread hole 2-56 tap put CyA threads Retap standard pushrod fittings can screwed inadjustable too least weight maximize use pushrod mate rial minimize length metal fitNEW NEW WING TUBE & SOCKETS 1 dia aluminum alloy tubing plug wings Included pair special slip-fit phenolic sockets build wing-structure 2024 alum tube 24 long socket 12 long S8951se1 / - Sleeve Puller -$795 Bearing Puller -$695 ENGINE SLEEVE & BEARING PULLER Pull tight sleeves bearings easily damage Cone cone expanding brass ring grips sleeve bearing ID new 60s 17MM rear bearing *Special* Both $1395 See Dealer Order Direct Include 75 Per Item f UPS Gator RIC Products Pompano Dr G3713 P ensacolaFL 32514 Phone AC t904 476-8639 tings end suggest think terms quarter ounces Four make up ounce four make up quarter-pounder 4 Installation weight purpose following information give some preliminary guidelines examples elec tric power system weight Part 7 well look finished plane weight size power flight times As general rule thumb weight power system motor battery wiring switch prop typical RC Electric about 50% total_place weightwith range limits usually between 40% 60% radio plane make up rest total Table shows some examples As further guideline electricpowered gliders generally have wing load ings 10-11 oz/sq ft aerobatics ships range 12-22 sport Scale about 12-14 Well look particulars future section cant wait can work backwards estimate wing area examples Table 1 5 Look pictures sketchesand compare examples text Since come installations next month should keep part handy another look time Also some illus trations coming up Section B can viewed standpoint text well Speaving next month youll find Part 6 loaded detailed information other things needed make installation completeswitches connectors fuses wir ing etc After well discuss planes flying previous parts will come together fairly extensive tabulation known performers complete statisti cal performance information 154 Model Aviation plan wrap up sorts most-often-asked questions will reviewed Also some incidentals oversights throughout will included may wondering Spectra construction article still planned conclusion series Its just end near once perceived Please forward questions SASE author Bob Kopski 25 West End Dr Lansdale PA 19446 realize have times past should have responded bit faster apologize However continue resolute intent answer expedient fashion conditions permitting FF Duration/Meuser Continued paoe 61 models sorts parts accessories miscellaneous goodies small rubberpower CO-2 power models has just troduced new line molded plastic wheels Molded mind vacuumformed As result detail crystalclear neatly-reinforced builtin hub Three sizes currently available hope therell 3/4 diameters weighing respectively 04 06 07 grams price 99tt pack eight size Actually wheel sort halfwheel flip side concave used as-is look pretty good Scale buffs will quick realize look lot realistic two wheels glued together back-to-back way come out rather fat-looking just right some applications prefer thinner look just scrub wheel around piece 80-grit garnet paper few sec onds before gluing halves together dont like looks six-spoke hub glue paper disc pattern preference local dealer doesnt carry tell him Meuser says hes shmoe order direct Peck send $150 Pecks larger-than-ever catalog address PO Box 2498 -La Mesa CA 92041 As sort gentle hint theyd like business catalog comes free first order word wise - Miter boxes revisited Ive published sev eral methods cutting gussets using special home-brew jigs Nat Comfort expressed amusement seeing modelers make such elaborate efforts perform such simple operation points out modelers already own razor saw small miter boxes available X-Acto FAI Model Supply others Using balsa stripstock appropriate size flip-cutflip-cut sequence can up ears gussets watching evening news So whats fuss Well building Half-A larger model using medium-to-hard balsa saw will cut neatly gumming NEW
Edition: Model Aviation - 1984/01
Page Numbers: 56, 57, 58, 59, 153, 154
THIS PART series differs somewhatKRC Electric Fly wanting know towant review installment Additional earlier parts two ways First in-put stuff Its amazing manyinformation provided mounting stallations lengthy topic requiring twoeager observers someone re-motors speed reducers attached Howissues cover thoroughly month wemoves wing reveal hidden secretsever other instances will present Section next month wellof its doneseries examples known quite have Section Bworkable surely second way part series1 Motor mounts topic partiallygood schemes imaginative modeler differs others much theillustrated Part 2 October 1983 Thatshould able envision variations information contained photos andsection devoted motors few specific comments order sketches format prompted theinstallations some aspects mountingWhen using machine screws front endlarge number people visiting annualfitted nicely discussion mightbell motor sure protrude Installations Electrics interest lots folks judging number guys eager see whats inside fuselage whenever wing removed important topic being covered issue next Part 5 U Bob KopskiAll about Left Removing cowl Dan Mittens 54-in Taylorcraft reveals motor plastic mount Plane needed thrust adjustments right down easily done kind mount Note air holes cowl front former center windshield Right Belt-drive installation Sport Scale J-3 Astro 15 held structural mount consisting Lite Ply formers fore aft assembly held against front former three metal tabs No 2 sheet metal screws 9 3 6 oclock positions shaped balsa nose block slips over front keyed place held wrap %-in-wide yellow auto trim tape photos author Air exit holes bottoms two different planesSpectra left Friendly right Spectra has extra holes allow shifting battery changing CG adding cells unused battery location filled foam block outline iron-on cloth rein forcement patch can seen under MonoKote covering two lengthwise black stripes glider skid material Ace R/C slit two pieces Friendly fuselage bottom has lots ventilation large 12-cell 12 Ah pack holes located line up spaces between cells plane also uses cloth reinforcing material around battery compartment beneath landing gear attachment 56 Model Aviation too far motor assembly chipped field magnets scored armature windings can result Check latter slight forward pull armature like props thrust would cause sure motor sembly reasonably well-supported front rear along its length fabricating structural type mount may easier bit oversize supporting former holes motor tube di ameter motor can bushed up few wraps plastic tape front rear achieve snug fit prefer /4-inch-wide automobile trim striping tape sure motor cannot rotate Use front endbell mounting holes clamps plastic motor mounts setscrews help assure Always sure motor vent holes free clear cooling air can easily flow through Some exit air fuse lage necessary V4-in-dia hole fuselage bottom good situations exit vent air has no other path take Most installations have rear motor vents located motor air merges other airflow going through battery Install motor accessible Sometimes maintenance required sure prop adapter setscrew tightpref erably against flat armature shaft 2 Battery mounts Last months Part 4 pic tured variety batteries obvious wide range battery shapes requires correspondingly wide range enclosures often battery single most-massive component model should adequately supported contained restrained battery ever starts mov ing its likely anything model structure will stop thought mind wise pay little extra attention fuselage struc ture around battery always use iron-on cloth patching material around outside fuselage reinforce battery area sometimes other areas like landing gear available several brands colors use white Bondex brand product can purchased variety departRECOMMENDED BATTERY INSTALLATION______ 0I i 060 __________0CELL~ 1/16 PLY OR l/l6HARD BALSA AIR OUT THRU BATTERY WITH IRON-ON CLOTH METAL OR PLASTIC MOTOR TOP VIEW MOUNT STRAPS USE 4-40 X3/16 IN MOTOit #2 SHEET METAL IN FORMER %NYWOOD 12 RECOMMENDED MOTOR MOUNT CUT SNUG-FITTING HOLES IN /8 PLY FORMERS TO SUPPORT MOTOR OFFSET MOTOR HOLE IN REAR FORMER FOR DESIRED SIDE AND/OR DOWN THRUST ISHOWN EXAGGERATED HERE SIDE VIEW III 12 NOTE REAR FORMER MAY BE POSI TIONED AT OR AT 2 IN FRONT OR IN BACK OF MOTOR COOLING HOLE BE SURE THERE IS I/2DIA AIR EXIT HOLE MIN IN FUSE BOTTOM January 1984 57 left air-scoop/hatch Persuader lifted Wide tape wing leading edge posi tion forms hinge A-in strip tape holds closed Elevator motor control servos Persuader shown picture above servos receiver 70 mAh radio battery pack visible held place double-sticky tape Velcro lever switch held atop servo double-sticky foam tape Lightweight mountings desirable Electrics three pictures show installation Leisure gear drive nose Playboy motor rests structural mount kept rotating single screw blind nut front former shaped balsa nose block keyed position held transparent tape Motor supporting surfaces kind installation must hardwood balsa isnt strong enough Left Balsa box added interior Playboy fuselage holds radio stuff motor battery Note cooling holes bottom box well fuselage bottom Theres reinforcing cloth wrap around box bottom motor battery will located though may show magazine reproduction picturel models box contents simply rest sheet fuselage bottom sides Right Heat-activated cloth patch material being applied over around ply landing gear mount Paper towel protects household iron ment sewing stores Follow direc tions regarding temperature use paper towel between household iron cloth keep heat-activated stickies off iron cloth adds tremendous strength plane has somewhere motor batteries constrained fuselage between sides front back formers Make front former very strong further secure cloth strip has dipped white glue plaster corner formed junction fuselage sides former larger heavier batteries use reinforcing tech nique joints inside balsa battery box Use cloth strips about I-in wide cut material like mans handkerchief Smear glue smoothly press soaked cloth firmly blot excess glue let dry thoroughly battery container floor can very hard cross-grained balsa /s ply As Distribution TotalSystem WeightWeight 33 oz185 oz 38ozl9oz 68oz32oz 99ozS3oz 16 oz 35oz 35 oz 48 oz 27 oz 20 oz Sys 56 53 47 54 45 60 70 60 47 49 examples use /6 balsa under six-cell 12 Ah packs plywood under larger packs Sometimes make battery box longer necessary distance between front rear formers allow fore-aft positioning battery aid balancing model empty space filled foam block Also use thin /x /16 foam food carton material snug up fit tween fuselage sides battery Finally battery box can air box too often extend fore aft formers high enough part wing saddle complete seating tape Thus wing place cooling air has no place go out through battery course no other leak fuse lage air has go through battery anyway Use good judgment Study il lustrations general idea am partial rectangular shaped battery folks prefer flat pack often install fuselage bottom using hatch door access Vari ous other mounting cooling schemes illustrated everincreasing number electric-powered plane plans MA 58 Model Aviation Left A peek inside cabin Playboy six-cell rectangular battery pack wedged between balsa formers thin plastic foam food carton Lever switch double-sticky-taped servo servo arm actuates lever Wires switch connected single conduc tor crimp-on connectors Servos caseless receiver held balsa sheet along sides double-sticky-backed Velcro Rudder elevator servos pressed apart wedged-in foam block Note thread binding screwed-in wire ends balsa pushrods Small lightweight radio wiring harness switch charging connector almost hide servos Right air-scoop/hatch removed John Hickeys twin Jack Rabbit can see flat-pack battery installation Air exit aft John has multiple battery packsflies charges other publications However too often feel just tad uncomfortable small amount cooling designs appear have usually form air scoop wing leading edge removable access hatch forward wing scoop typically least % high about width fuselage bigger battery larger air inlet passage should cases simply cant get sufficient cooling airflow no choice remove battery after flight al low cool touched last month 3 Radio equipment will become evident later single important factor electric-powered planes often weight mind basic importance construct model least possible weight consistent reason able strength durability large block ounces RC model course radio equipment Since radio motive power system often interrelated represent equipment installed modelprobably about same time Ill get area now RECOMMENDED MOTOR MOUNT strongly recommend use increas ingly-popular miniature receivers batteries servos Since usually several servos model lets start Electric applications smallContinued page 153 CUT SIDE AND/OR DOWN SOFT BALSA BLOCKTHRUST INTO FUSE OR HOLE SAW THROUGHFRONT tolA TO SUIT MOTOR SNUG FIT -~ 3 LINE BALSA HOLE. WITH 1/64 PLY 4 GLUE BLOCK TO PROP DRIVE FRONT OF FUSE 5 CARVE TO STREAM LINED SHAPE 6MOTOR INSERTS THROUGH TOP\- 1/2 DIA HATCH REMOVE FIRST L......T 11/2UST 7 HOT STUFF 8 BAKING SODA 2 GOLDBERG NYLON RIGHT ANGLES TO PLYWOOD LINR tRECESS MOTOR ABOUT 5/16 DRILL I/B HOLES IN NYLON ANGLES TO MATCH TAPPED MOTOR HOLES USE 4-4OxI/4 SCREWS THROUGH NYLON ANGLES INTO MOTOR BE SURE MOTOR REAR COOLING HOLES ARE CLEAR FULL-SIZE COOLING AIR EXIT HOLE PATTERN I13 c LO~OO 6CELLI2 AH 00 0 0 Th 4 0 ~0 0 0 0 0 12 CELL 12 AH January 1984 59 Spinks Akromaster $20995 Add $1000 postagelhandling * 90 Span 15-17 lbs * Fiberglass Cowl/Pants * Built-up Fuselage * Foam Wing * Quadra Power GIANT FUN SCALE AIRCRAFT Immediate Delivery DEALER INQUIRIES WELCOME Send $100 catalogue perfectly balanced prop exactly same length center tip blade exactly same pitch blade Get right rpm should have very competitive racer Now its up Oh way might have weiner roast just bonfire props cannot use kidding aside once find some good props will guard life So after race put upthen bal ance extra props use practice hope information some help comes no guarantees will go Quarter Midget Formula props next issue See next month Bill Hager 706 Glen Haven Dr Conroe lx 77302 Electrics/Kopski Continued page 59 est available servos will bequite satis factory say because have seen exceptions larger and/or faster planes can have considerable load control surfaces adequate servo power neces sary Some judgment always called no matter what powers plane present installations use Bantam Midget mechanics others use locally include D&R Micro mechanics Futaba S-20s World 522s Cannon Micro others mechanics mentioned above incorporated servos including Ace Litco Cannon Charlies several others thing characterizes servos under ounce weight thats key Electrics use 250 mAh flight packs smaller 250s go glider types long flight times large ships acrobatic planes both latter have heavier servo loads Smaller packs quite practi cal provided keep track flying time aerobatic Persuader uses 70 mAh cells taken GE nine-volt Ni-Cd semblies consumer products flew plane bench continuously moving ailerons elevator 22 mm before battery ran down Persuader flights aver age 4 5 minutes surfaces arent continuous motion fly plane four times carefully ru pack down rest way fast-charge field L1LO SPIHllR 5Y1 flCE WAN TED IHE STI RT FELLOW V/HO TO UY MY PLRiNE LL ROUND2 Fokker Triplane 4 Flight TestedContest Proven Rhinebeck 82 Results CamelFirst Triplanes5 awards Scale 2 gine 60 Send 75C latest price list & literature VK MODEL AIRCRAFT CO 4350 Arondale Dr Williamsville NY 14221 716-6324838 Consumers Guide RC Aircraft Products 242 Pages Photos & Descriptions over 2000 RC Aircraft Products fered 176 companies Outstanding Value Only $495 plus shipping* Send $660 Includes ups handling Foreign orders send $786 US surface mail $1049 US air mail Catalogs tram companies would cost over 10 times price outstanding reference book product lines nearly major man ufacturer distributor importer well unique interesting products small companies seldom advertise national modeling magazines July 83 Model Aviation See Local Dealer Order Direct Send check money order Consumera Guide 150 Ott St Harrisonburg VA 22801 January 1984 153 PO Box 9044 Little Rock Arkansas 72219501J 224-8044 nundreds New Products TIGER TAIL 4 Ron Chidgeys latest A best series little larger lighter slower retains honest flight character tistics its predecessors Especially recommended sportsman ad vanced pattern also good choice tor turn-around pattern Plans construction hints -$995 WELLER 3 BLADE PROP very stiff molded fiberglas propellor trom England Its efficient design allows substantial reduction noise level actually improving per formance $2000 NEW CLAMP IT FOREVER STAINLESS STEEL PIPE CLAMPS Light strong Low-profile seiflocking 3116 width wont cut silicone couplers Pkg 4 clamps -$295 flights Persuader weights 33 oz cobalt 05 motor six 12 Ah cells three servos Receivers generally weigh between 1 2 oz some planes remove plastic case save about neaky overweight item flight pack can wiring harness Some surprisingly heavy large switches complete bulky plastic covers lots wire Try some thing lighter Radio installation Electrics relatively easy since minimal vibration usually light mechanical loads Ive elimi nated foam packing am getting away servo rails trays smaller planes double-sticky foam servo mounting tape double sticky Velcro Radio Shack holds servos receiver flight battery attaching double stickies balsa first coat balsa model airplane cement such Ambroid let dry fill wood make sound surface sticky stick case servos stock fuselage sides opposite other put light balsa foam block between keep servos presssed sides prevent rocking pushrod loads feel comfortable con ventional servo-mounting techniques sug gest making servo tray out /v-in Lite Ply using tray sort horizon tal fuselage former during assembly does wonders alignment like Golden Rod small balsa pushrods planes 3/i sq firm balsa rods work very well bind end heavy thread drill #50 hole end center Thread hole 2-56 tap put CyA threads Retap standard pushrod fittings can screwed inadjustable too least weight maximize use pushrod mate rial minimize length metal fitNEW NEW WING TUBE & SOCKETS 1 dia aluminum alloy tubing plug wings Included pair special slip-fit phenolic sockets build wing-structure 2024 alum tube 24 long socket 12 long S8951se1 / - Sleeve Puller -$795 Bearing Puller -$695 ENGINE SLEEVE & BEARING PULLER Pull tight sleeves bearings easily damage Cone cone expanding brass ring grips sleeve bearing ID new 60s 17MM rear bearing *Special* Both $1395 See Dealer Order Direct Include 75 Per Item f UPS Gator RIC Products Pompano Dr G3713 P ensacolaFL 32514 Phone AC t904 476-8639 tings end suggest think terms quarter ounces Four make up ounce four make up quarter-pounder 4 Installation weight purpose following information give some preliminary guidelines examples elec tric power system weight Part 7 well look finished plane weight size power flight times As general rule thumb weight power system motor battery wiring switch prop typical RC Electric about 50% total_place weightwith range limits usually between 40% 60% radio plane make up rest total Table shows some examples As further guideline electricpowered gliders generally have wing load ings 10-11 oz/sq ft aerobatics ships range 12-22 sport Scale about 12-14 Well look particulars future section cant wait can work backwards estimate wing area examples Table 1 5 Look pictures sketchesand compare examples text Since come installations next month should keep part handy another look time Also some illus trations coming up Section B can viewed standpoint text well Speaving next month youll find Part 6 loaded detailed information other things needed make installation completeswitches connectors fuses wir ing etc After well discuss planes flying previous parts will come together fairly extensive tabulation known performers complete statisti cal performance information 154 Model Aviation plan wrap up sorts most-often-asked questions will reviewed Also some incidentals oversights throughout will included may wondering Spectra construction article still planned conclusion series Its just end near once perceived Please forward questions SASE author Bob Kopski 25 West End Dr Lansdale PA 19446 realize have times past should have responded bit faster apologize However continue resolute intent answer expedient fashion conditions permitting FF Duration/Meuser Continued paoe 61 models sorts parts accessories miscellaneous goodies small rubberpower CO-2 power models has just troduced new line molded plastic wheels Molded mind vacuumformed As result detail crystalclear neatly-reinforced builtin hub Three sizes currently available hope therell 3/4 diameters weighing respectively 04 06 07 grams price 99tt pack eight size Actually wheel sort halfwheel flip side concave used as-is look pretty good Scale buffs will quick realize look lot realistic two wheels glued together back-to-back way come out rather fat-looking just right some applications prefer thinner look just scrub wheel around piece 80-grit garnet paper few sec onds before gluing halves together dont like looks six-spoke hub glue paper disc pattern preference local dealer doesnt carry tell him Meuser says hes shmoe order direct Peck send $150 Pecks larger-than-ever catalog address PO Box 2498 -La Mesa CA 92041 As sort gentle hint theyd like business catalog comes free first order word wise - Miter boxes revisited Ive published sev eral methods cutting gussets using special home-brew jigs Nat Comfort expressed amusement seeing modelers make such elaborate efforts perform such simple operation points out modelers already own razor saw small miter boxes available X-Acto FAI Model Supply others Using balsa stripstock appropriate size flip-cutflip-cut sequence can up ears gussets watching evening news So whats fuss Well building Half-A larger model using medium-to-hard balsa saw will cut neatly gumming NEW
Edition: Model Aviation - 1984/01
Page Numbers: 56, 57, 58, 59, 153, 154
THIS PART series differs somewhatKRC Electric Fly wanting know towant review installment Additional earlier parts two ways First in-put stuff Its amazing manyinformation provided mounting stallations lengthy topic requiring twoeager observers someone re-motors speed reducers attached Howissues cover thoroughly month wemoves wing reveal hidden secretsever other instances will present Section next month wellof its doneseries examples known quite have Section Bworkable surely second way part series1 Motor mounts topic partiallygood schemes imaginative modeler differs others much theillustrated Part 2 October 1983 Thatshould able envision variations information contained photos andsection devoted motors few specific comments order sketches format prompted theinstallations some aspects mountingWhen using machine screws front endlarge number people visiting annualfitted nicely discussion mightbell motor sure protrude Installations Electrics interest lots folks judging number guys eager see whats inside fuselage whenever wing removed important topic being covered issue next Part 5 U Bob KopskiAll about Left Removing cowl Dan Mittens 54-in Taylorcraft reveals motor plastic mount Plane needed thrust adjustments right down easily done kind mount Note air holes cowl front former center windshield Right Belt-drive installation Sport Scale J-3 Astro 15 held structural mount consisting Lite Ply formers fore aft assembly held against front former three metal tabs No 2 sheet metal screws 9 3 6 oclock positions shaped balsa nose block slips over front keyed place held wrap %-in-wide yellow auto trim tape photos author Air exit holes bottoms two different planesSpectra left Friendly right Spectra has extra holes allow shifting battery changing CG adding cells unused battery location filled foam block outline iron-on cloth rein forcement patch can seen under MonoKote covering two lengthwise black stripes glider skid material Ace R/C slit two pieces Friendly fuselage bottom has lots ventilation large 12-cell 12 Ah pack holes located line up spaces between cells plane also uses cloth reinforcing material around battery compartment beneath landing gear attachment 56 Model Aviation too far motor assembly chipped field magnets scored armature windings can result Check latter slight forward pull armature like props thrust would cause sure motor sembly reasonably well-supported front rear along its length fabricating structural type mount may easier bit oversize supporting former holes motor tube di ameter motor can bushed up few wraps plastic tape front rear achieve snug fit prefer /4-inch-wide automobile trim striping tape sure motor cannot rotate Use front endbell mounting holes clamps plastic motor mounts setscrews help assure Always sure motor vent holes free clear cooling air can easily flow through Some exit air fuse lage necessary V4-in-dia hole fuselage bottom good situations exit vent air has no other path take Most installations have rear motor vents located motor air merges other airflow going through battery Install motor accessible Sometimes maintenance required sure prop adapter setscrew tightpref erably against flat armature shaft 2 Battery mounts Last months Part 4 pic tured variety batteries obvious wide range battery shapes requires correspondingly wide range enclosures often battery single most-massive component model should adequately supported contained restrained battery ever starts mov ing its likely anything model structure will stop thought mind wise pay little extra attention fuselage struc ture around battery always use iron-on cloth patching material around outside fuselage reinforce battery area sometimes other areas like landing gear available several brands colors use white Bondex brand product can purchased variety departRECOMMENDED BATTERY INSTALLATION______ 0I i 060 __________0CELL~ 1/16 PLY OR l/l6HARD BALSA AIR OUT THRU BATTERY WITH IRON-ON CLOTH METAL OR PLASTIC MOTOR TOP VIEW MOUNT STRAPS USE 4-40 X3/16 IN MOTOit #2 SHEET METAL IN FORMER %NYWOOD 12 RECOMMENDED MOTOR MOUNT CUT SNUG-FITTING HOLES IN /8 PLY FORMERS TO SUPPORT MOTOR OFFSET MOTOR HOLE IN REAR FORMER FOR DESIRED SIDE AND/OR DOWN THRUST ISHOWN EXAGGERATED HERE SIDE VIEW III 12 NOTE REAR FORMER MAY BE POSI TIONED AT OR AT 2 IN FRONT OR IN BACK OF MOTOR COOLING HOLE BE SURE THERE IS I/2DIA AIR EXIT HOLE MIN IN FUSE BOTTOM January 1984 57 left air-scoop/hatch Persuader lifted Wide tape wing leading edge posi tion forms hinge A-in strip tape holds closed Elevator motor control servos Persuader shown picture above servos receiver 70 mAh radio battery pack visible held place double-sticky tape Velcro lever switch held atop servo double-sticky foam tape Lightweight mountings desirable Electrics three pictures show installation Leisure gear drive nose Playboy motor rests structural mount kept rotating single screw blind nut front former shaped balsa nose block keyed position held transparent tape Motor supporting surfaces kind installation must hardwood balsa isnt strong enough Left Balsa box added interior Playboy fuselage holds radio stuff motor battery Note cooling holes bottom box well fuselage bottom Theres reinforcing cloth wrap around box bottom motor battery will located though may show magazine reproduction picturel models box contents simply rest sheet fuselage bottom sides Right Heat-activated cloth patch material being applied over around ply landing gear mount Paper towel protects household iron ment sewing stores Follow direc tions regarding temperature use paper towel between household iron cloth keep heat-activated stickies off iron cloth adds tremendous strength plane has somewhere motor batteries constrained fuselage between sides front back formers Make front former very strong further secure cloth strip has dipped white glue plaster corner formed junction fuselage sides former larger heavier batteries use reinforcing tech nique joints inside balsa battery box Use cloth strips about I-in wide cut material like mans handkerchief Smear glue smoothly press soaked cloth firmly blot excess glue let dry thoroughly battery container floor can very hard cross-grained balsa /s ply As Distribution TotalSystem WeightWeight 33 oz185 oz 38ozl9oz 68oz32oz 99ozS3oz 16 oz 35oz 35 oz 48 oz 27 oz 20 oz Sys 56 53 47 54 45 60 70 60 47 49 examples use /6 balsa under six-cell 12 Ah packs plywood under larger packs Sometimes make battery box longer necessary distance between front rear formers allow fore-aft positioning battery aid balancing model empty space filled foam block Also use thin /x /16 foam food carton material snug up fit tween fuselage sides battery Finally battery box can air box too often extend fore aft formers high enough part wing saddle complete seating tape Thus wing place cooling air has no place go out through battery course no other leak fuse lage air has go through battery anyway Use good judgment Study il lustrations general idea am partial rectangular shaped battery folks prefer flat pack often install fuselage bottom using hatch door access Vari ous other mounting cooling schemes illustrated everincreasing number electric-powered plane plans MA 58 Model Aviation Left A peek inside cabin Playboy six-cell rectangular battery pack wedged between balsa formers thin plastic foam food carton Lever switch double-sticky-taped servo servo arm actuates lever Wires switch connected single conduc tor crimp-on connectors Servos caseless receiver held balsa sheet along sides double-sticky-backed Velcro Rudder elevator servos pressed apart wedged-in foam block Note thread binding screwed-in wire ends balsa pushrods Small lightweight radio wiring harness switch charging connector almost hide servos Right air-scoop/hatch removed John Hickeys twin Jack Rabbit can see flat-pack battery installation Air exit aft John has multiple battery packsflies charges other publications However too often feel just tad uncomfortable small amount cooling designs appear have usually form air scoop wing leading edge removable access hatch forward wing scoop typically least % high about width fuselage bigger battery larger air inlet passage should cases simply cant get sufficient cooling airflow no choice remove battery after flight al low cool touched last month 3 Radio equipment will become evident later single important factor electric-powered planes often weight mind basic importance construct model least possible weight consistent reason able strength durability large block ounces RC model course radio equipment Since radio motive power system often interrelated represent equipment installed modelprobably about same time Ill get area now RECOMMENDED MOTOR MOUNT strongly recommend use increas ingly-popular miniature receivers batteries servos Since usually several servos model lets start Electric applications smallContinued page 153 CUT SIDE AND/OR DOWN SOFT BALSA BLOCKTHRUST INTO FUSE OR HOLE SAW THROUGHFRONT tolA TO SUIT MOTOR SNUG FIT -~ 3 LINE BALSA HOLE. WITH 1/64 PLY 4 GLUE BLOCK TO PROP DRIVE FRONT OF FUSE 5 CARVE TO STREAM LINED SHAPE 6MOTOR INSERTS THROUGH TOP\- 1/2 DIA HATCH REMOVE FIRST L......T 11/2UST 7 HOT STUFF 8 BAKING SODA 2 GOLDBERG NYLON RIGHT ANGLES TO PLYWOOD LINR tRECESS MOTOR ABOUT 5/16 DRILL I/B HOLES IN NYLON ANGLES TO MATCH TAPPED MOTOR HOLES USE 4-4OxI/4 SCREWS THROUGH NYLON ANGLES INTO MOTOR BE SURE MOTOR REAR COOLING HOLES ARE CLEAR FULL-SIZE COOLING AIR EXIT HOLE PATTERN I13 c LO~OO 6CELLI2 AH 00 0 0 Th 4 0 ~0 0 0 0 0 12 CELL 12 AH January 1984 59 Spinks Akromaster $20995 Add $1000 postagelhandling * 90 Span 15-17 lbs * Fiberglass Cowl/Pants * Built-up Fuselage * Foam Wing * Quadra Power GIANT FUN SCALE AIRCRAFT Immediate Delivery DEALER INQUIRIES WELCOME Send $100 catalogue perfectly balanced prop exactly same length center tip blade exactly same pitch blade Get right rpm should have very competitive racer Now its up Oh way might have weiner roast just bonfire props cannot use kidding aside once find some good props will guard life So after race put upthen bal ance extra props use practice hope information some help comes no guarantees will go Quarter Midget Formula props next issue See next month Bill Hager 706 Glen Haven Dr Conroe lx 77302 Electrics/Kopski Continued page 59 est available servos will bequite satis factory say because have seen exceptions larger and/or faster planes can have considerable load control surfaces adequate servo power neces sary Some judgment always called no matter what powers plane present installations use Bantam Midget mechanics others use locally include D&R Micro mechanics Futaba S-20s World 522s Cannon Micro others mechanics mentioned above incorporated servos including Ace Litco Cannon Charlies several others thing characterizes servos under ounce weight thats key Electrics use 250 mAh flight packs smaller 250s go glider types long flight times large ships acrobatic planes both latter have heavier servo loads Smaller packs quite practi cal provided keep track flying time aerobatic Persuader uses 70 mAh cells taken GE nine-volt Ni-Cd semblies consumer products flew plane bench continuously moving ailerons elevator 22 mm before battery ran down Persuader flights aver age 4 5 minutes surfaces arent continuous motion fly plane four times carefully ru pack down rest way fast-charge field L1LO SPIHllR 5Y1 flCE WAN TED IHE STI RT FELLOW V/HO TO UY MY PLRiNE LL ROUND2 Fokker Triplane 4 Flight TestedContest Proven Rhinebeck 82 Results CamelFirst Triplanes5 awards Scale 2 gine 60 Send 75C latest price list & literature VK MODEL AIRCRAFT CO 4350 Arondale Dr Williamsville NY 14221 716-6324838 Consumers Guide RC Aircraft Products 242 Pages Photos & Descriptions over 2000 RC Aircraft Products fered 176 companies Outstanding Value Only $495 plus shipping* Send $660 Includes ups handling Foreign orders send $786 US surface mail $1049 US air mail Catalogs tram companies would cost over 10 times price outstanding reference book product lines nearly major man ufacturer distributor importer well unique interesting products small companies seldom advertise national modeling magazines July 83 Model Aviation See Local Dealer Order Direct Send check money order Consumera Guide 150 Ott St Harrisonburg VA 22801 January 1984 153 PO Box 9044 Little Rock Arkansas 72219501J 224-8044 nundreds New Products TIGER TAIL 4 Ron Chidgeys latest A best series little larger lighter slower retains honest flight character tistics its predecessors Especially recommended sportsman ad vanced pattern also good choice tor turn-around pattern Plans construction hints -$995 WELLER 3 BLADE PROP very stiff molded fiberglas propellor trom England Its efficient design allows substantial reduction noise level actually improving per formance $2000 NEW CLAMP IT FOREVER STAINLESS STEEL PIPE CLAMPS Light strong Low-profile seiflocking 3116 width wont cut silicone couplers Pkg 4 clamps -$295 flights Persuader weights 33 oz cobalt 05 motor six 12 Ah cells three servos Receivers generally weigh between 1 2 oz some planes remove plastic case save about neaky overweight item flight pack can wiring harness Some surprisingly heavy large switches complete bulky plastic covers lots wire Try some thing lighter Radio installation Electrics relatively easy since minimal vibration usually light mechanical loads Ive elimi nated foam packing am getting away servo rails trays smaller planes double-sticky foam servo mounting tape double sticky Velcro Radio Shack holds servos receiver flight battery attaching double stickies balsa first coat balsa model airplane cement such Ambroid let dry fill wood make sound surface sticky stick case servos stock fuselage sides opposite other put light balsa foam block between keep servos presssed sides prevent rocking pushrod loads feel comfortable con ventional servo-mounting techniques sug gest making servo tray out /v-in Lite Ply using tray sort horizon tal fuselage former during assembly does wonders alignment like Golden Rod small balsa pushrods planes 3/i sq firm balsa rods work very well bind end heavy thread drill #50 hole end center Thread hole 2-56 tap put CyA threads Retap standard pushrod fittings can screwed inadjustable too least weight maximize use pushrod mate rial minimize length metal fitNEW NEW WING TUBE & SOCKETS 1 dia aluminum alloy tubing plug wings Included pair special slip-fit phenolic sockets build wing-structure 2024 alum tube 24 long socket 12 long S8951se1 / - Sleeve Puller -$795 Bearing Puller -$695 ENGINE SLEEVE & BEARING PULLER Pull tight sleeves bearings easily damage Cone cone expanding brass ring grips sleeve bearing ID new 60s 17MM rear bearing *Special* Both $1395 See Dealer Order Direct Include 75 Per Item f UPS Gator RIC Products Pompano Dr G3713 P ensacolaFL 32514 Phone AC t904 476-8639 tings end suggest think terms quarter ounces Four make up ounce four make up quarter-pounder 4 Installation weight purpose following information give some preliminary guidelines examples elec tric power system weight Part 7 well look finished plane weight size power flight times As general rule thumb weight power system motor battery wiring switch prop typical RC Electric about 50% total_place weightwith range limits usually between 40% 60% radio plane make up rest total Table shows some examples As further guideline electricpowered gliders generally have wing load ings 10-11 oz/sq ft aerobatics ships range 12-22 sport Scale about 12-14 Well look particulars future section cant wait can work backwards estimate wing area examples Table 1 5 Look pictures sketchesand compare examples text Since come installations next month should keep part handy another look time Also some illus trations coming up Section B can viewed standpoint text well Speaving next month youll find Part 6 loaded detailed information other things needed make installation completeswitches connectors fuses wir ing etc After well discuss planes flying previous parts will come together fairly extensive tabulation known performers complete statisti cal performance information 154 Model Aviation plan wrap up sorts most-often-asked questions will reviewed Also some incidentals oversights throughout will included may wondering Spectra construction article still planned conclusion series Its just end near once perceived Please forward questions SASE author Bob Kopski 25 West End Dr Lansdale PA 19446 realize have times past should have responded bit faster apologize However continue resolute intent answer expedient fashion conditions permitting FF Duration/Meuser Continued paoe 61 models sorts parts accessories miscellaneous goodies small rubberpower CO-2 power models has just troduced new line molded plastic wheels Molded mind vacuumformed As result detail crystalclear neatly-reinforced builtin hub Three sizes currently available hope therell 3/4 diameters weighing respectively 04 06 07 grams price 99tt pack eight size Actually wheel sort halfwheel flip side concave used as-is look pretty good Scale buffs will quick realize look lot realistic two wheels glued together back-to-back way come out rather fat-looking just right some applications prefer thinner look just scrub wheel around piece 80-grit garnet paper few sec onds before gluing halves together dont like looks six-spoke hub glue paper disc pattern preference local dealer doesnt carry tell him Meuser says hes shmoe order direct Peck send $150 Pecks larger-than-ever catalog address PO Box 2498 -La Mesa CA 92041 As sort gentle hint theyd like business catalog comes free first order word wise - Miter boxes revisited Ive published sev eral methods cutting gussets using special home-brew jigs Nat Comfort expressed amusement seeing modelers make such elaborate efforts perform such simple operation points out modelers already own razor saw small miter boxes available X-Acto FAI Model Supply others Using balsa stripstock appropriate size flip-cutflip-cut sequence can up ears gussets watching evening news So whats fuss Well building Half-A larger model using medium-to-hard balsa saw will cut neatly gumming NEW
Edition: Model Aviation - 1984/01
Page Numbers: 56, 57, 58, 59, 153, 154
THIS PART series differs somewhatKRC Electric Fly wanting know towant review installment Additional earlier parts two ways First in-put stuff Its amazing manyinformation provided mounting stallations lengthy topic requiring twoeager observers someone re-motors speed reducers attached Howissues cover thoroughly month wemoves wing reveal hidden secretsever other instances will present Section next month wellof its doneseries examples known quite have Section Bworkable surely second way part series1 Motor mounts topic partiallygood schemes imaginative modeler differs others much theillustrated Part 2 October 1983 Thatshould able envision variations information contained photos andsection devoted motors few specific comments order sketches format prompted theinstallations some aspects mountingWhen using machine screws front endlarge number people visiting annualfitted nicely discussion mightbell motor sure protrude Installations Electrics interest lots folks judging number guys eager see whats inside fuselage whenever wing removed important topic being covered issue next Part 5 U Bob KopskiAll about Left Removing cowl Dan Mittens 54-in Taylorcraft reveals motor plastic mount Plane needed thrust adjustments right down easily done kind mount Note air holes cowl front former center windshield Right Belt-drive installation Sport Scale J-3 Astro 15 held structural mount consisting Lite Ply formers fore aft assembly held against front former three metal tabs No 2 sheet metal screws 9 3 6 oclock positions shaped balsa nose block slips over front keyed place held wrap %-in-wide yellow auto trim tape photos author Air exit holes bottoms two different planesSpectra left Friendly right Spectra has extra holes allow shifting battery changing CG adding cells unused battery location filled foam block outline iron-on cloth rein forcement patch can seen under MonoKote covering two lengthwise black stripes glider skid material Ace R/C slit two pieces Friendly fuselage bottom has lots ventilation large 12-cell 12 Ah pack holes located line up spaces between cells plane also uses cloth reinforcing material around battery compartment beneath landing gear attachment 56 Model Aviation too far motor assembly chipped field magnets scored armature windings can result Check latter slight forward pull armature like props thrust would cause sure motor sembly reasonably well-supported front rear along its length fabricating structural type mount may easier bit oversize supporting former holes motor tube di ameter motor can bushed up few wraps plastic tape front rear achieve snug fit prefer /4-inch-wide automobile trim striping tape sure motor cannot rotate Use front endbell mounting holes clamps plastic motor mounts setscrews help assure Always sure motor vent holes free clear cooling air can easily flow through Some exit air fuse lage necessary V4-in-dia hole fuselage bottom good situations exit vent air has no other path take Most installations have rear motor vents located motor air merges other airflow going through battery Install motor accessible Sometimes maintenance required sure prop adapter setscrew tightpref erably against flat armature shaft 2 Battery mounts Last months Part 4 pic tured variety batteries obvious wide range battery shapes requires correspondingly wide range enclosures often battery single most-massive component model should adequately supported contained restrained battery ever starts mov ing its likely anything model structure will stop thought mind wise pay little extra attention fuselage struc ture around battery always use iron-on cloth patching material around outside fuselage reinforce battery area sometimes other areas like landing gear available several brands colors use white Bondex brand product can purchased variety departRECOMMENDED BATTERY INSTALLATION______ 0I i 060 __________0CELL~ 1/16 PLY OR l/l6HARD BALSA AIR OUT THRU BATTERY WITH IRON-ON CLOTH METAL OR PLASTIC MOTOR TOP VIEW MOUNT STRAPS USE 4-40 X3/16 IN MOTOit #2 SHEET METAL IN FORMER %NYWOOD 12 RECOMMENDED MOTOR MOUNT CUT SNUG-FITTING HOLES IN /8 PLY FORMERS TO SUPPORT MOTOR OFFSET MOTOR HOLE IN REAR FORMER FOR DESIRED SIDE AND/OR DOWN THRUST ISHOWN EXAGGERATED HERE SIDE VIEW III 12 NOTE REAR FORMER MAY BE POSI TIONED AT OR AT 2 IN FRONT OR IN BACK OF MOTOR COOLING HOLE BE SURE THERE IS I/2DIA AIR EXIT HOLE MIN IN FUSE BOTTOM January 1984 57 left air-scoop/hatch Persuader lifted Wide tape wing leading edge posi tion forms hinge A-in strip tape holds closed Elevator motor control servos Persuader shown picture above servos receiver 70 mAh radio battery pack visible held place double-sticky tape Velcro lever switch held atop servo double-sticky foam tape Lightweight mountings desirable Electrics three pictures show installation Leisure gear drive nose Playboy motor rests structural mount kept rotating single screw blind nut front former shaped balsa nose block keyed position held transparent tape Motor supporting surfaces kind installation must hardwood balsa isnt strong enough Left Balsa box added interior Playboy fuselage holds radio stuff motor battery Note cooling holes bottom box well fuselage bottom Theres reinforcing cloth wrap around box bottom motor battery will located though may show magazine reproduction picturel models box contents simply rest sheet fuselage bottom sides Right Heat-activated cloth patch material being applied over around ply landing gear mount Paper towel protects household iron ment sewing stores Follow direc tions regarding temperature use paper towel between household iron cloth keep heat-activated stickies off iron cloth adds tremendous strength plane has somewhere motor batteries constrained fuselage between sides front back formers Make front former very strong further secure cloth strip has dipped white glue plaster corner formed junction fuselage sides former larger heavier batteries use reinforcing tech nique joints inside balsa battery box Use cloth strips about I-in wide cut material like mans handkerchief Smear glue smoothly press soaked cloth firmly blot excess glue let dry thoroughly battery container floor can very hard cross-grained balsa /s ply As Distribution TotalSystem WeightWeight 33 oz185 oz 38ozl9oz 68oz32oz 99ozS3oz 16 oz 35oz 35 oz 48 oz 27 oz 20 oz Sys 56 53 47 54 45 60 70 60 47 49 examples use /6 balsa under six-cell 12 Ah packs plywood under larger packs Sometimes make battery box longer necessary distance between front rear formers allow fore-aft positioning battery aid balancing model empty space filled foam block Also use thin /x /16 foam food carton material snug up fit tween fuselage sides battery Finally battery box can air box too often extend fore aft formers high enough part wing saddle complete seating tape Thus wing place cooling air has no place go out through battery course no other leak fuse lage air has go through battery anyway Use good judgment Study il lustrations general idea am partial rectangular shaped battery folks prefer flat pack often install fuselage bottom using hatch door access Vari ous other mounting cooling schemes illustrated everincreasing number electric-powered plane plans MA 58 Model Aviation Left A peek inside cabin Playboy six-cell rectangular battery pack wedged between balsa formers thin plastic foam food carton Lever switch double-sticky-taped servo servo arm actuates lever Wires switch connected single conduc tor crimp-on connectors Servos caseless receiver held balsa sheet along sides double-sticky-backed Velcro Rudder elevator servos pressed apart wedged-in foam block Note thread binding screwed-in wire ends balsa pushrods Small lightweight radio wiring harness switch charging connector almost hide servos Right air-scoop/hatch removed John Hickeys twin Jack Rabbit can see flat-pack battery installation Air exit aft John has multiple battery packsflies charges other publications However too often feel just tad uncomfortable small amount cooling designs appear have usually form air scoop wing leading edge removable access hatch forward wing scoop typically least % high about width fuselage bigger battery larger air inlet passage should cases simply cant get sufficient cooling airflow no choice remove battery after flight al low cool touched last month 3 Radio equipment will become evident later single important factor electric-powered planes often weight mind basic importance construct model least possible weight consistent reason able strength durability large block ounces RC model course radio equipment Since radio motive power system often interrelated represent equipment installed modelprobably about same time Ill get area now RECOMMENDED MOTOR MOUNT strongly recommend use increas ingly-popular miniature receivers batteries servos Since usually several servos model lets start Electric applications smallContinued page 153 CUT SIDE AND/OR DOWN SOFT BALSA BLOCKTHRUST INTO FUSE OR HOLE SAW THROUGHFRONT tolA TO SUIT MOTOR SNUG FIT -~ 3 LINE BALSA HOLE. WITH 1/64 PLY 4 GLUE BLOCK TO PROP DRIVE FRONT OF FUSE 5 CARVE TO STREAM LINED SHAPE 6MOTOR INSERTS THROUGH TOP\- 1/2 DIA HATCH REMOVE FIRST L......T 11/2UST 7 HOT STUFF 8 BAKING SODA 2 GOLDBERG NYLON RIGHT ANGLES TO PLYWOOD LINR tRECESS MOTOR ABOUT 5/16 DRILL I/B HOLES IN NYLON ANGLES TO MATCH TAPPED MOTOR HOLES USE 4-4OxI/4 SCREWS THROUGH NYLON ANGLES INTO MOTOR BE SURE MOTOR REAR COOLING HOLES ARE CLEAR FULL-SIZE COOLING AIR EXIT HOLE PATTERN I13 c LO~OO 6CELLI2 AH 00 0 0 Th 4 0 ~0 0 0 0 0 12 CELL 12 AH January 1984 59 Spinks Akromaster $20995 Add $1000 postagelhandling * 90 Span 15-17 lbs * Fiberglass Cowl/Pants * Built-up Fuselage * Foam Wing * Quadra Power GIANT FUN SCALE AIRCRAFT Immediate Delivery DEALER INQUIRIES WELCOME Send $100 catalogue perfectly balanced prop exactly same length center tip blade exactly same pitch blade Get right rpm should have very competitive racer Now its up Oh way might have weiner roast just bonfire props cannot use kidding aside once find some good props will guard life So after race put upthen bal ance extra props use practice hope information some help comes no guarantees will go Quarter Midget Formula props next issue See next month Bill Hager 706 Glen Haven Dr Conroe lx 77302 Electrics/Kopski Continued page 59 est available servos will bequite satis factory say because have seen exceptions larger and/or faster planes can have considerable load control surfaces adequate servo power neces sary Some judgment always called no matter what powers plane present installations use Bantam Midget mechanics others use locally include D&R Micro mechanics Futaba S-20s World 522s Cannon Micro others mechanics mentioned above incorporated servos including Ace Litco Cannon Charlies several others thing characterizes servos under ounce weight thats key Electrics use 250 mAh flight packs smaller 250s go glider types long flight times large ships acrobatic planes both latter have heavier servo loads Smaller packs quite practi cal provided keep track flying time aerobatic Persuader uses 70 mAh cells taken GE nine-volt Ni-Cd semblies consumer products flew plane bench continuously moving ailerons elevator 22 mm before battery ran down Persuader flights aver age 4 5 minutes surfaces arent continuous motion fly plane four times carefully ru pack down rest way fast-charge field L1LO SPIHllR 5Y1 flCE WAN TED IHE STI RT FELLOW V/HO TO UY MY PLRiNE LL ROUND2 Fokker Triplane 4 Flight TestedContest Proven Rhinebeck 82 Results CamelFirst Triplanes5 awards Scale 2 gine 60 Send 75C latest price list & literature VK MODEL AIRCRAFT CO 4350 Arondale Dr Williamsville NY 14221 716-6324838 Consumers Guide RC Aircraft Products 242 Pages Photos & Descriptions over 2000 RC Aircraft Products fered 176 companies Outstanding Value Only $495 plus shipping* Send $660 Includes ups handling Foreign orders send $786 US surface mail $1049 US air mail Catalogs tram companies would cost over 10 times price outstanding reference book product lines nearly major man ufacturer distributor importer well unique interesting products small companies seldom advertise national modeling magazines July 83 Model Aviation See Local Dealer Order Direct Send check money order Consumera Guide 150 Ott St Harrisonburg VA 22801 January 1984 153 PO Box 9044 Little Rock Arkansas 72219501J 224-8044 nundreds New Products TIGER TAIL 4 Ron Chidgeys latest A best series little larger lighter slower retains honest flight character tistics its predecessors Especially recommended sportsman ad vanced pattern also good choice tor turn-around pattern Plans construction hints -$995 WELLER 3 BLADE PROP very stiff molded fiberglas propellor trom England Its efficient design allows substantial reduction noise level actually improving per formance $2000 NEW CLAMP IT FOREVER STAINLESS STEEL PIPE CLAMPS Light strong Low-profile seiflocking 3116 width wont cut silicone couplers Pkg 4 clamps -$295 flights Persuader weights 33 oz cobalt 05 motor six 12 Ah cells three servos Receivers generally weigh between 1 2 oz some planes remove plastic case save about neaky overweight item flight pack can wiring harness Some surprisingly heavy large switches complete bulky plastic covers lots wire Try some thing lighter Radio installation Electrics relatively easy since minimal vibration usually light mechanical loads Ive elimi nated foam packing am getting away servo rails trays smaller planes double-sticky foam servo mounting tape double sticky Velcro Radio Shack holds servos receiver flight battery attaching double stickies balsa first coat balsa model airplane cement such Ambroid let dry fill wood make sound surface sticky stick case servos stock fuselage sides opposite other put light balsa foam block between keep servos presssed sides prevent rocking pushrod loads feel comfortable con ventional servo-mounting techniques sug gest making servo tray out /v-in Lite Ply using tray sort horizon tal fuselage former during assembly does wonders alignment like Golden Rod small balsa pushrods planes 3/i sq firm balsa rods work very well bind end heavy thread drill #50 hole end center Thread hole 2-56 tap put CyA threads Retap standard pushrod fittings can screwed inadjustable too least weight maximize use pushrod mate rial minimize length metal fitNEW NEW WING TUBE & SOCKETS 1 dia aluminum alloy tubing plug wings Included pair special slip-fit phenolic sockets build wing-structure 2024 alum tube 24 long socket 12 long S8951se1 / - Sleeve Puller -$795 Bearing Puller -$695 ENGINE SLEEVE & BEARING PULLER Pull tight sleeves bearings easily damage Cone cone expanding brass ring grips sleeve bearing ID new 60s 17MM rear bearing *Special* Both $1395 See Dealer Order Direct Include 75 Per Item f UPS Gator RIC Products Pompano Dr G3713 P ensacolaFL 32514 Phone AC t904 476-8639 tings end suggest think terms quarter ounces Four make up ounce four make up quarter-pounder 4 Installation weight purpose following information give some preliminary guidelines examples elec tric power system weight Part 7 well look finished plane weight size power flight times As general rule thumb weight power system motor battery wiring switch prop typical RC Electric about 50% total_place weightwith range limits usually between 40% 60% radio plane make up rest total Table shows some examples As further guideline electricpowered gliders generally have wing load ings 10-11 oz/sq ft aerobatics ships range 12-22 sport Scale about 12-14 Well look particulars future section cant wait can work backwards estimate wing area examples Table 1 5 Look pictures sketchesand compare examples text Since come installations next month should keep part handy another look time Also some illus trations coming up Section B can viewed standpoint text well Speaving next month youll find Part 6 loaded detailed information other things needed make installation completeswitches connectors fuses wir ing etc After well discuss planes flying previous parts will come together fairly extensive tabulation known performers complete statisti cal performance information 154 Model Aviation plan wrap up sorts most-often-asked questions will reviewed Also some incidentals oversights throughout will included may wondering Spectra construction article still planned conclusion series Its just end near once perceived Please forward questions SASE author Bob Kopski 25 West End Dr Lansdale PA 19446 realize have times past should have responded bit faster apologize However continue resolute intent answer expedient fashion conditions permitting FF Duration/Meuser Continued paoe 61 models sorts parts accessories miscellaneous goodies small rubberpower CO-2 power models has just troduced new line molded plastic wheels Molded mind vacuumformed As result detail crystalclear neatly-reinforced builtin hub Three sizes currently available hope therell 3/4 diameters weighing respectively 04 06 07 grams price 99tt pack eight size Actually wheel sort halfwheel flip side concave used as-is look pretty good Scale buffs will quick realize look lot realistic two wheels glued together back-to-back way come out rather fat-looking just right some applications prefer thinner look just scrub wheel around piece 80-grit garnet paper few sec onds before gluing halves together dont like looks six-spoke hub glue paper disc pattern preference local dealer doesnt carry tell him Meuser says hes shmoe order direct Peck send $150 Pecks larger-than-ever catalog address PO Box 2498 -La Mesa CA 92041 As sort gentle hint theyd like business catalog comes free first order word wise - Miter boxes revisited Ive published sev eral methods cutting gussets using special home-brew jigs Nat Comfort expressed amusement seeing modelers make such elaborate efforts perform such simple operation points out modelers already own razor saw small miter boxes available X-Acto FAI Model Supply others Using balsa stripstock appropriate size flip-cutflip-cut sequence can up ears gussets watching evening news So whats fuss Well building Half-A larger model using medium-to-hard balsa saw will cut neatly gumming NEW
Edition: Model Aviation - 1984/01
Page Numbers: 56, 57, 58, 59, 153, 154
THIS PART series differs somewhatKRC Electric Fly wanting know towant review installment Additional earlier parts two ways First in-put stuff Its amazing manyinformation provided mounting stallations lengthy topic requiring twoeager observers someone re-motors speed reducers attached Howissues cover thoroughly month wemoves wing reveal hidden secretsever other instances will present Section next month wellof its doneseries examples known quite have Section Bworkable surely second way part series1 Motor mounts topic partiallygood schemes imaginative modeler differs others much theillustrated Part 2 October 1983 Thatshould able envision variations information contained photos andsection devoted motors few specific comments order sketches format prompted theinstallations some aspects mountingWhen using machine screws front endlarge number people visiting annualfitted nicely discussion mightbell motor sure protrude Installations Electrics interest lots folks judging number guys eager see whats inside fuselage whenever wing removed important topic being covered issue next Part 5 U Bob KopskiAll about Left Removing cowl Dan Mittens 54-in Taylorcraft reveals motor plastic mount Plane needed thrust adjustments right down easily done kind mount Note air holes cowl front former center windshield Right Belt-drive installation Sport Scale J-3 Astro 15 held structural mount consisting Lite Ply formers fore aft assembly held against front former three metal tabs No 2 sheet metal screws 9 3 6 oclock positions shaped balsa nose block slips over front keyed place held wrap %-in-wide yellow auto trim tape photos author Air exit holes bottoms two different planesSpectra left Friendly right Spectra has extra holes allow shifting battery changing CG adding cells unused battery location filled foam block outline iron-on cloth rein forcement patch can seen under MonoKote covering two lengthwise black stripes glider skid material Ace R/C slit two pieces Friendly fuselage bottom has lots ventilation large 12-cell 12 Ah pack holes located line up spaces between cells plane also uses cloth reinforcing material around battery compartment beneath landing gear attachment 56 Model Aviation too far motor assembly chipped field magnets scored armature windings can result Check latter slight forward pull armature like props thrust would cause sure motor sembly reasonably well-supported front rear along its length fabricating structural type mount may easier bit oversize supporting former holes motor tube di ameter motor can bushed up few wraps plastic tape front rear achieve snug fit prefer /4-inch-wide automobile trim striping tape sure motor cannot rotate Use front endbell mounting holes clamps plastic motor mounts setscrews help assure Always sure motor vent holes free clear cooling air can easily flow through Some exit air fuse lage necessary V4-in-dia hole fuselage bottom good situations exit vent air has no other path take Most installations have rear motor vents located motor air merges other airflow going through battery Install motor accessible Sometimes maintenance required sure prop adapter setscrew tightpref erably against flat armature shaft 2 Battery mounts Last months Part 4 pic tured variety batteries obvious wide range battery shapes requires correspondingly wide range enclosures often battery single most-massive component model should adequately supported contained restrained battery ever starts mov ing its likely anything model structure will stop thought mind wise pay little extra attention fuselage struc ture around battery always use iron-on cloth patching material around outside fuselage reinforce battery area sometimes other areas like landing gear available several brands colors use white Bondex brand product can purchased variety departRECOMMENDED BATTERY INSTALLATION______ 0I i 060 __________0CELL~ 1/16 PLY OR l/l6HARD BALSA AIR OUT THRU BATTERY WITH IRON-ON CLOTH METAL OR PLASTIC MOTOR TOP VIEW MOUNT STRAPS USE 4-40 X3/16 IN MOTOit #2 SHEET METAL IN FORMER %NYWOOD 12 RECOMMENDED MOTOR MOUNT CUT SNUG-FITTING HOLES IN /8 PLY FORMERS TO SUPPORT MOTOR OFFSET MOTOR HOLE IN REAR FORMER FOR DESIRED SIDE AND/OR DOWN THRUST ISHOWN EXAGGERATED HERE SIDE VIEW III 12 NOTE REAR FORMER MAY BE POSI TIONED AT OR AT 2 IN FRONT OR IN BACK OF MOTOR COOLING HOLE BE SURE THERE IS I/2DIA AIR EXIT HOLE MIN IN FUSE BOTTOM January 1984 57 left air-scoop/hatch Persuader lifted Wide tape wing leading edge posi tion forms hinge A-in strip tape holds closed Elevator motor control servos Persuader shown picture above servos receiver 70 mAh radio battery pack visible held place double-sticky tape Velcro lever switch held atop servo double-sticky foam tape Lightweight mountings desirable Electrics three pictures show installation Leisure gear drive nose Playboy motor rests structural mount kept rotating single screw blind nut front former shaped balsa nose block keyed position held transparent tape Motor supporting surfaces kind installation must hardwood balsa isnt strong enough Left Balsa box added interior Playboy fuselage holds radio stuff motor battery Note cooling holes bottom box well fuselage bottom Theres reinforcing cloth wrap around box bottom motor battery will located though may show magazine reproduction picturel models box contents simply rest sheet fuselage bottom sides Right Heat-activated cloth patch material being applied over around ply landing gear mount Paper towel protects household iron ment sewing stores Follow direc tions regarding temperature use paper towel between household iron cloth keep heat-activated stickies off iron cloth adds tremendous strength plane has somewhere motor batteries constrained fuselage between sides front back formers Make front former very strong further secure cloth strip has dipped white glue plaster corner formed junction fuselage sides former larger heavier batteries use reinforcing tech nique joints inside balsa battery box Use cloth strips about I-in wide cut material like mans handkerchief Smear glue smoothly press soaked cloth firmly blot excess glue let dry thoroughly battery container floor can very hard cross-grained balsa /s ply As Distribution TotalSystem WeightWeight 33 oz185 oz 38ozl9oz 68oz32oz 99ozS3oz 16 oz 35oz 35 oz 48 oz 27 oz 20 oz Sys 56 53 47 54 45 60 70 60 47 49 examples use /6 balsa under six-cell 12 Ah packs plywood under larger packs Sometimes make battery box longer necessary distance between front rear formers allow fore-aft positioning battery aid balancing model empty space filled foam block Also use thin /x /16 foam food carton material snug up fit tween fuselage sides battery Finally battery box can air box too often extend fore aft formers high enough part wing saddle complete seating tape Thus wing place cooling air has no place go out through battery course no other leak fuse lage air has go through battery anyway Use good judgment Study il lustrations general idea am partial rectangular shaped battery folks prefer flat pack often install fuselage bottom using hatch door access Vari ous other mounting cooling schemes illustrated everincreasing number electric-powered plane plans MA 58 Model Aviation Left A peek inside cabin Playboy six-cell rectangular battery pack wedged between balsa formers thin plastic foam food carton Lever switch double-sticky-taped servo servo arm actuates lever Wires switch connected single conduc tor crimp-on connectors Servos caseless receiver held balsa sheet along sides double-sticky-backed Velcro Rudder elevator servos pressed apart wedged-in foam block Note thread binding screwed-in wire ends balsa pushrods Small lightweight radio wiring harness switch charging connector almost hide servos Right air-scoop/hatch removed John Hickeys twin Jack Rabbit can see flat-pack battery installation Air exit aft John has multiple battery packsflies charges other publications However too often feel just tad uncomfortable small amount cooling designs appear have usually form air scoop wing leading edge removable access hatch forward wing scoop typically least % high about width fuselage bigger battery larger air inlet passage should cases simply cant get sufficient cooling airflow no choice remove battery after flight al low cool touched last month 3 Radio equipment will become evident later single important factor electric-powered planes often weight mind basic importance construct model least possible weight consistent reason able strength durability large block ounces RC model course radio equipment Since radio motive power system often interrelated represent equipment installed modelprobably about same time Ill get area now RECOMMENDED MOTOR MOUNT strongly recommend use increas ingly-popular miniature receivers batteries servos Since usually several servos model lets start Electric applications smallContinued page 153 CUT SIDE AND/OR DOWN SOFT BALSA BLOCKTHRUST INTO FUSE OR HOLE SAW THROUGHFRONT tolA TO SUIT MOTOR SNUG FIT -~ 3 LINE BALSA HOLE. WITH 1/64 PLY 4 GLUE BLOCK TO PROP DRIVE FRONT OF FUSE 5 CARVE TO STREAM LINED SHAPE 6MOTOR INSERTS THROUGH TOP\- 1/2 DIA HATCH REMOVE FIRST L......T 11/2UST 7 HOT STUFF 8 BAKING SODA 2 GOLDBERG NYLON RIGHT ANGLES TO PLYWOOD LINR tRECESS MOTOR ABOUT 5/16 DRILL I/B HOLES IN NYLON ANGLES TO MATCH TAPPED MOTOR HOLES USE 4-4OxI/4 SCREWS THROUGH NYLON ANGLES INTO MOTOR BE SURE MOTOR REAR COOLING HOLES ARE CLEAR FULL-SIZE COOLING AIR EXIT HOLE PATTERN I13 c LO~OO 6CELLI2 AH 00 0 0 Th 4 0 ~0 0 0 0 0 12 CELL 12 AH January 1984 59 Spinks Akromaster $20995 Add $1000 postagelhandling * 90 Span 15-17 lbs * Fiberglass Cowl/Pants * Built-up Fuselage * Foam Wing * Quadra Power GIANT FUN SCALE AIRCRAFT Immediate Delivery DEALER INQUIRIES WELCOME Send $100 catalogue perfectly balanced prop exactly same length center tip blade exactly same pitch blade Get right rpm should have very competitive racer Now its up Oh way might have weiner roast just bonfire props cannot use kidding aside once find some good props will guard life So after race put upthen bal ance extra props use practice hope information some help comes no guarantees will go Quarter Midget Formula props next issue See next month Bill Hager 706 Glen Haven Dr Conroe lx 77302 Electrics/Kopski Continued page 59 est available servos will bequite satis factory say because have seen exceptions larger and/or faster planes can have considerable load control surfaces adequate servo power neces sary Some judgment always called no matter what powers plane present installations use Bantam Midget mechanics others use locally include D&R Micro mechanics Futaba S-20s World 522s Cannon Micro others mechanics mentioned above incorporated servos including Ace Litco Cannon Charlies several others thing characterizes servos under ounce weight thats key Electrics use 250 mAh flight packs smaller 250s go glider types long flight times large ships acrobatic planes both latter have heavier servo loads Smaller packs quite practi cal provided keep track flying time aerobatic Persuader uses 70 mAh cells taken GE nine-volt Ni-Cd semblies consumer products flew plane bench continuously moving ailerons elevator 22 mm before battery ran down Persuader flights aver age 4 5 minutes surfaces arent continuous motion fly plane four times carefully ru pack down rest way fast-charge field L1LO SPIHllR 5Y1 flCE WAN TED IHE STI RT FELLOW V/HO TO UY MY PLRiNE LL ROUND2 Fokker Triplane 4 Flight TestedContest Proven Rhinebeck 82 Results CamelFirst Triplanes5 awards Scale 2 gine 60 Send 75C latest price list & literature VK MODEL AIRCRAFT CO 4350 Arondale Dr Williamsville NY 14221 716-6324838 Consumers Guide RC Aircraft Products 242 Pages Photos & Descriptions over 2000 RC Aircraft Products fered 176 companies Outstanding Value Only $495 plus shipping* Send $660 Includes ups handling Foreign orders send $786 US surface mail $1049 US air mail Catalogs tram companies would cost over 10 times price outstanding reference book product lines nearly major man ufacturer distributor importer well unique interesting products small companies seldom advertise national modeling magazines July 83 Model Aviation See Local Dealer Order Direct Send check money order Consumera Guide 150 Ott St Harrisonburg VA 22801 January 1984 153 PO Box 9044 Little Rock Arkansas 72219501J 224-8044 nundreds New Products TIGER TAIL 4 Ron Chidgeys latest A best series little larger lighter slower retains honest flight character tistics its predecessors Especially recommended sportsman ad vanced pattern also good choice tor turn-around pattern Plans construction hints -$995 WELLER 3 BLADE PROP very stiff molded fiberglas propellor trom England Its efficient design allows substantial reduction noise level actually improving per formance $2000 NEW CLAMP IT FOREVER STAINLESS STEEL PIPE CLAMPS Light strong Low-profile seiflocking 3116 width wont cut silicone couplers Pkg 4 clamps -$295 flights Persuader weights 33 oz cobalt 05 motor six 12 Ah cells three servos Receivers generally weigh between 1 2 oz some planes remove plastic case save about neaky overweight item flight pack can wiring harness Some surprisingly heavy large switches complete bulky plastic covers lots wire Try some thing lighter Radio installation Electrics relatively easy since minimal vibration usually light mechanical loads Ive elimi nated foam packing am getting away servo rails trays smaller planes double-sticky foam servo mounting tape double sticky Velcro Radio Shack holds servos receiver flight battery attaching double stickies balsa first coat balsa model airplane cement such Ambroid let dry fill wood make sound surface sticky stick case servos stock fuselage sides opposite other put light balsa foam block between keep servos presssed sides prevent rocking pushrod loads feel comfortable con ventional servo-mounting techniques sug gest making servo tray out /v-in Lite Ply using tray sort horizon tal fuselage former during assembly does wonders alignment like Golden Rod small balsa pushrods planes 3/i sq firm balsa rods work very well bind end heavy thread drill #50 hole end center Thread hole 2-56 tap put CyA threads Retap standard pushrod fittings can screwed inadjustable too least weight maximize use pushrod mate rial minimize length metal fitNEW NEW WING TUBE & SOCKETS 1 dia aluminum alloy tubing plug wings Included pair special slip-fit phenolic sockets build wing-structure 2024 alum tube 24 long socket 12 long S8951se1 / - Sleeve Puller -$795 Bearing Puller -$695 ENGINE SLEEVE & BEARING PULLER Pull tight sleeves bearings easily damage Cone cone expanding brass ring grips sleeve bearing ID new 60s 17MM rear bearing *Special* Both $1395 See Dealer Order Direct Include 75 Per Item f UPS Gator RIC Products Pompano Dr G3713 P ensacolaFL 32514 Phone AC t904 476-8639 tings end suggest think terms quarter ounces Four make up ounce four make up quarter-pounder 4 Installation weight purpose following information give some preliminary guidelines examples elec tric power system weight Part 7 well look finished plane weight size power flight times As general rule thumb weight power system motor battery wiring switch prop typical RC Electric about 50% total_place weightwith range limits usually between 40% 60% radio plane make up rest total Table shows some examples As further guideline electricpowered gliders generally have wing load ings 10-11 oz/sq ft aerobatics ships range 12-22 sport Scale about 12-14 Well look particulars future section cant wait can work backwards estimate wing area examples Table 1 5 Look pictures sketchesand compare examples text Since come installations next month should keep part handy another look time Also some illus trations coming up Section B can viewed standpoint text well Speaving next month youll find Part 6 loaded detailed information other things needed make installation completeswitches connectors fuses wir ing etc After well discuss planes flying previous parts will come together fairly extensive tabulation known performers complete statisti cal performance information 154 Model Aviation plan wrap up sorts most-often-asked questions will reviewed Also some incidentals oversights throughout will included may wondering Spectra construction article still planned conclusion series Its just end near once perceived Please forward questions SASE author Bob Kopski 25 West End Dr Lansdale PA 19446 realize have times past should have responded bit faster apologize However continue resolute intent answer expedient fashion conditions permitting FF Duration/Meuser Continued paoe 61 models sorts parts accessories miscellaneous goodies small rubberpower CO-2 power models has just troduced new line molded plastic wheels Molded mind vacuumformed As result detail crystalclear neatly-reinforced builtin hub Three sizes currently available hope therell 3/4 diameters weighing respectively 04 06 07 grams price 99tt pack eight size Actually wheel sort halfwheel flip side concave used as-is look pretty good Scale buffs will quick realize look lot realistic two wheels glued together back-to-back way come out rather fat-looking just right some applications prefer thinner look just scrub wheel around piece 80-grit garnet paper few sec onds before gluing halves together dont like looks six-spoke hub glue paper disc pattern preference local dealer doesnt carry tell him Meuser says hes shmoe order direct Peck send $150 Pecks larger-than-ever catalog address PO Box 2498 -La Mesa CA 92041 As sort gentle hint theyd like business catalog comes free first order word wise - Miter boxes revisited Ive published sev eral methods cutting gussets using special home-brew jigs Nat Comfort expressed amusement seeing modelers make such elaborate efforts perform such simple operation points out modelers already own razor saw small miter boxes available X-Acto FAI Model Supply others Using balsa stripstock appropriate size flip-cutflip-cut sequence can up ears gussets watching evening news So whats fuss Well building Half-A larger model using medium-to-hard balsa saw will cut neatly gumming NEW