Build model time author says assure yourself always having practice models Shown four six SlySirs built session Foam-winged Combat models arent easier build open framework versions have other advantages THIS IS THE BEST around /2A Combat model has designed date opinion wooden Combat models will fly just well far crash resistance goes foam has over balsa models Thats quite statement believe true have flying Combat since 1965 have designed three Combat mod els have published produced kit can see have fair amount experience Steve Hills designer SlySir has flying since 1955 has also designed several Combat models though first design published great Combat pilots Southern California have long recognized soundness Steves foam designs have used year after year What makes design superior others Its strength light weight answers models come between 5 5 oz 180 sq wing area design features tapering trailing edges airfoil section reduce weight wing tips foam wings cored-out except lead-out slot inboard wing l-in-dia hole bladder tank tube outboard wing rocket tube glued place actually acts spar strengthen center model Foam gets its strength its lightweight solid mass coring-out wing will greatly reduce its strength advantage An other advantage foam wing over balsa structure no open bays can distort covering flexes foam airfoil will remain constant 8-in tapering front spar helps hold center section together absorbs vibration engine cover models Left particular model No 9 first Fresno CA meet October 23 1983 Outboard wing stripes done tempera waterbased paintto serve both decoration tip weight Right Designer Steve Hills holds SlySir No 6 against Pacific Ocean background beach flying site Playa del Rey Steve developed design help promote AA Combat encourage limited budgets A9 Mrv-iI Aviation Left Aircraft-type locknuts 3-48 screws good assurance keeping engine tightly filter fuel line feeds engine clean mix Right Recommended engine Cox Tee Dee 049/051here disassembled cleaning fitting Author uses WD-40 Simichrome Fas Cal Mylar material sticky adhe sive side covering gives model much its overall strength use 36 45-lb-test braided nylon fishing line hinges stabilator provides strength flexibility crash resistance would say Cox Tee Dee 049 051 finest Combat engine ever made care taken set up break can get hours hours reliable service find out set up engine read Combat column December 1981 issue Flying Models met Steve Hills Lincoln NE AMA Nats 1979 As turned out live fairly close another Southern Cali fornia have doing lots flying building together since time Steve built eight models set building sessions have since built ad ditional six models waiting foam designs really refined before making switch balsa am now convinced foam way go going fly Combat however think will save time building foam instead balsa crash damage far less foamand repairs quicker eas ier models built correctly will bounce impact ground time Make sure have materials tools adhesives before start project will need following adhe sives 5-mm epoxy slow-cure epoxy ali phatic resin glue cyanoacrylate CyA glue could use some contact cement absolutely necessary will need tools modeling knife doubleedge razor blades razor saw wire cutters hammer vise propane torch longnose pli ers center punch paint brushes various small files hand power drill set drill bits Dremel Moto Shop access lots sandpaper various grits apparatus cutting foam wings book published RC Modeler magazine foam wings can great help can Paul Smiths Dragon article February issue Model Aviation have other articles published subject cutting foam wings will just have go through back issues modeling magazines order thoroughly familiar different setups Decide models want build gather materials buy balsa sheets will have buy 36-in lengths lot need model Make sure check wood densities called plans before buy wood can tremendous weight difference sheet balsa another use wrong weight wood will end up shifting balance point CG Try get friends build some models way can share work expense Make shopping list materials Nothing frustrating get project partly finished find short item hobby shop closed course Start making templates like use /6 plywood easy work templates include two cutting wing panels two cutting spar notches center rib tail boom stabilator mount bellcrank mount stabilator optional may made thin cardboard favorite method making templates use car bon paper typing paper under plans trace over part need plans cut out glue onto 1/6 plywood cut out jigsaw dont want trace over plans simply make photocopies parts need plans Sand file templates exact shape shown plans Remember final product will good templates Read can about cutting foam Once practice little will find isnt very difficult successfully will need cut foam blocks 15 long 8 wide end Left Stabilators sanded airfoil shape covered Fas Cal strength Note holes drilled center rib prior wing assembly Right Its important test-fit wing panels center rib before gluing Ply doubler sanded feather rib March 1984 63 FULL-SIZE PLANS AVAILABLE . SEE PAGE 170 1/32 PLYWOOD DOUBLER __ USE COO 5-3 PROPS I/B DOWELS COO TEE DEE 049 OR 051 TrP /4DRAIN VENT SPRUCE SPAR-IDLEI/R BALSA PLUS 3 V DIAMETER ROCKET TUBE ACCESS HOLE TOP VIEW 3/3D PLY BELLCRANK MOUNT 015 LESS-OUT EYELETS IDA I/3D ID DIR CABLE LEAD OUTSEDIT I-IDLE NOTE WING SPAN 30-7/IS LENUTH 13-I/O AREA NT SO IN CENTER-,2I 27szzsaTIP- CARL DOLOBERS THREADED PUOBROD THREADED NYLON CLEVIS I/B BALSA STABILATOR LISHY-WEISHY 3/B BALSA CENTER RIB MEDIUM WEISHT FOAM WINS 1/2 BALSA BOOM MEDIUM-WEISHY 3/3D PLYWOOD SUPPORT 36 TO 45 POUND TEST BRAIDED NYLON FISHINS LINE FOAM WIND CUTTINS_TEMPLATES DOUBLER TEMPLATE 3/B SO MAPLE ENSINE MOUNTS / SIDE VIEW BALANCE POINT SMALL HORN OW BALSA 3/3D PLY I/3D PLY 0 D2456 TEMPLATE ALIONMENT HOLES CENTER BELLCRANK MOUNT TEMPLATE SPAR NOTCH AND LEAD-OUT CHANNEL TEMPLATEU 3/3D PLY TIP SUPPORT TEMPLATE 3/3D PLYWOOD SLY SIR 1/2 FOAM WING COMBAT 1983 I/2A COMBAT NATIONAL CHAMPION PILOT PETE ATHANS DESIGNED BY STEVE HILLS DRAWN BY RICH VON LOPEZ TRACING BY JOE DEMARCO 6 wide other 1 /2 thick draw centerline ends foam block before templates put place clamp felt-tip pen vise height 3/4 draw ends blocks past pen way centerlines will exactly same order hollow out lead-out slot inboard wing have poke hole through wing cutting wire can passed through made jig holds piece 078 music wire follows will need piece 2 X 4 lumber 6 long Drill hole through 4-in width 2-in side exactly 3/4 edge hole needs very straight accurate have drill press use Cut 4-in section half have 2 x 2 x 6-inch pieces can nailed door heights 20 25 holes should 3/4 door Make sure holes two blocks line verti cally 078 music wire should now able travel up down straight line inboard foam wing panel block held below wire lower end wire heated propane torchThe wire can dropped through foam block melting straight hole its way Line up centerline wing tem plates centerline foam blocks hold place 2-in finishing nails wing templates have long thin extension trailing edge assist cutting operation cutting wire always comes out first wing tip side ex tension guides hot wire level other side wire finishes its cut keeps airfoil constant throughout cut Wing cutting best done two peo ple side cutting bow Start cuts leading edge wing travel slowly evenly over templates toward trailing edge Flip block over bottom half wing same way will notice have extra foam material trailing edge leave until later will protect trailing edge dents han dling Continued page 153 64 Model Aviation I/3D PLY WINS TIP I/B SQUARE SPRUCE SPARS CARL BOLOBERS 1/DA BELLCRANK I/3D PLY WINS TIP Y /wG TIP Left Pete Athans won 1AA Combat unofficial event 1983 AMA Nationals Pete ran out models borrowed authors SlySir final winning match Right Some 31 fliers entered AA Combat Nats unofficial event sponsored Cox Hobbiesl other records FAI files indicate Soviet minds tend seek exploit loopholes rules could expand previous sentence article would appropriately published some Journal Social Psy chology will limit myself express ing hope political officials will leave no loopholes rules now trying write about competitions involving nuclear weapons did record hard way proud have put together real good 4th July picnic food terrible dried-out ham cheese sandwich aerial fireworks spectacular Approxi mately million eight hundred sixtysix thousand consecutive explosions pro duced truly revolutionary celebration SlySir/von Lopez Continued oaue 64 Cut wings stage before start cutting spar notches use same cutting bow spar notches Pull out wing templates plug spar-notch templates will able use same nail holes both templates drilled same spots cut down front across bottom up back Dont spend too much time spot hot wire will melt foam intend Practice some scrap pieces foam Its really easy once get feel After have done first wing panel check grooves spruce spars dont fit perfectly make some adjustments templates try again Leave templates place inboard wing panel cutting wire can now passed through hole made 078 music wire tape end cutting wire piece music wire simply push through hole end cutting wire held surgical forceps Alligator clips electrical power source hooked up between forceps wing cutting wire go around lead-out slot twice stop center slot letting cutting wire cool cutting wire pulled out pull out center rib side rather wing tip side will also pull out foam material has cut out Any remaining foam can poked out wing spar hole bladder tank tube must cut 1-in-dia aluminum tube has sharpened Dremel tool will well found shower curtain rod hardware store exact size Just push turn tube wing will cut foam easily Mark aluminum tube 5 masking tape wont cut too far wing Sometimes round foam plug will come 3-FUNCTION ACCUTACH ITM O LCD Tachometer w/dual scale capability lox bOX @ Digital Voltmeter load /5 && checking/cycling TX/AX battery combosACC&I-tACl7 tor quick 1charging operationa 095 7 prepaid Noror Calqz~ Calif add 6% tax INC94086 wj5NLINE METAL SPECIALISTS COMPLETE THIS FORM AND AlTACH MAILING LABEL FROM RECENT ISSUE LET US KNOW WHERE YOU ARE GOING move please let us know advancesix weeks required change address Attach current MA mailing label check appropriate box mall Subscrip tion Dept Model Aviation 1810 Samuel Morse Dr Reston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION C CHANGE OF ADDRESS Non-AMA subscription rates $1800 12 months US possessions elsewhere tinciuding Canada Mexico $2400 US Schools $900 US Libraries $1350 NAME ADDRESS CITY/STATE _______________________________________________ ZIP ________________ MODEL AVIATION 1810 SAMUEL MORSE DR RESTON VA 22090 Great Lakes Model Company 5173626078 PO Dcx 308 Tawu5 CityIALL MAJOR COMPONENTS Ml 487631MOLDED URETHANE FOAM LEOS LASER * World Aerobatic Champion Top Quality Epoxy Gloss Fuse loge Cowl & Wheel Punts inum Landing Gear loan Wingto Span Wing Area 1440 sq inches Complete Step hy Step InAll Balsa Finish Kit structions Pictures Weight 16-20 Iho Engine 2-4 HP 95 99 PLUS $1* SHIPPING Direct Sales Only JR3 STICK Ideal Trainer An Outstanding Balsa & Fun Cit 72 Wing Span Wint Area-lOSt sq 12 Hour Assembly Time weighs 0 12 lbs 5nginn Sine 75 13 95 $7 9 PLUS SHIPPING Direct Sales Only COMING SOON Cap2O&Cap2l 60- 12 engines ~ j4Manufacturers Quality Kits Large Scale Engines out tube cut through wis half double-edge razor blade round piece foam should just fall out Use templates draw parts out line balsa plywood sheets cut out Drill holes need drilled time first parts glued together stabilator mount tail boom Use CyA aliphatic resin glue like use slowcure epoxy over entire unit fuel proofing added strength epoxy tail boom will fit onto wing Cut 1-in-dia rocket tube Estes BT5O length 5 tubes come 18-in lengths Coat inside tube slow-cure epoxy fiberglass resin polyurethane varnish let dry like let parts dry overnight first rocket tubes dry roll up some fine sandpaper sand inside no sharp edges very important sharp edges bumps will cause bladder tank ruptures Cut two round balsa plugs ends rocket tube Use 5-mm epoxy glue place making sure inside surfaces plugs also have coat epoxy Check fit tube wing Sand outside tube glue will adhere well coat thin coat aliphatic resin glue slide its hole outboard wing Make sure doesnt extend beyond edge wing Cut belicrank mount slot center rib drill two 2-in holes slot ends belicrank mount comes through inboard side model ing knife cut out slot As can see plans bellcrank mount has taper does slot can use small file get taper center rib Check fit often bellcrank mount taper put bellcrank mount cannot pull out rib Glue bellcrank mount slot aliphatic resin Now glue two maple engine mounts center rib aliphatic resin After dry glue 2 plywood engine mount doubler place again aliphatic resin rectangular hole must cut doubler front spar First drill hole through area carve out modeling knife everything dry cut mounts down shape shown plans Moto Shop Sand down doubler rear tapers flush rib Center punch location engine bolt holes drill out Put some CyA glue down hole making sure soaks wood Redrill holes prevents holes getting fuel soaked Drill holes dowels location shown plans glue dowels place aliphatic resin Attach 018 stranded lead-out cables /2A bellcrank C Goldberg #263 Sig #SH 234 Before sand over lead-out holes bellcrank take off sharp edges may cut lead-outs pushrod hole bellcrank will have drilled accept threaded pushrod leave 1 /2 2-in loops lead-outs bellcrank 3A2-in brass copper attachment tubes flatten lock lead-out cable placing vise hitting hammer have crimping tool can use Bend cut pushrod exact shape shown plans Slip pushrod bellcrank bolt assembly bellcrank mount use wood screw comes bellcrank set replaced bolt nut Add drop oil bellcrank bushing smooth operation Cut excess bellcrank bolt tapered groove has cut wings leading edge accommodate tapered front spar mark area felt-tip pen cut some material out modeling knife can sanded perfect fit can glue some sand paper edge scrap sq spar make exact sanding tool oper ation Fit front spar center rib assembly test fit outboard wing off work until fit perfect Some inboard wing has cut out lead-out slot bellcrank will fit binding Try cut out too much foam can create weak spot Mark location pushrod will pass out wing melt out slot hot wire Again make slot too big Continued page 156 154 Model Aviation 0 NEW BUSY PEOPLE KITS CITABRIA STINSON L5 9 CESSNAZLIN 50L 56 INCH ALL BALSA DELUXE PRE-FAB PROFILE FLYING MODELS $695 RUBBER POWER LOG $150 -MA LA MESA CA 92041 Power Soar New Heights C LT-50 Electric Motor 01 Cu equivelent gas engine displacement Send self-addressed stamped envelope catalog ap plication notes Leisure 11 Deerspring/Irvine/CA 92714 THIS FUEL FEATURES ORUST PREVENTION AGENTS ODETERGENTS OLUBRICAllON WITH HIGH FLASH POINTS WEmNG AGENTS FOR MORE EFFICIENT AND DEPENDABLE FUEL FLOW OANTI-FOAMING AGENTS TO PREVENT LEAN RUNS KEEPS YOUR ENGINE RUNNING COOL OAN ODORLESS HIGHLY REFINED FUEL OCHILDPROOF LIDS Available FAd 5 10 15 25 & 40% Nifro-Methane Contents Formulated synthetic lubricants Also available castor DEALERS WANlED DOMESTIC & OVERSEAS WE EXPORT competitrn fuel fast becoming ThE CHOICE tap profesionols tirot cash product Contact us price structureS ordering information Manufncturers Major Brand Distributors Model Engines Kits Radios Accessories SUPER K Fuels brand KINGS RADIO CONTROL HOBBIES INTERNATiONAl 3960 West 16 Ave Hialech Florida 33012 305 557-2024 inboard wing must made fit per fectly bellcrank area also en gine mount doubler latter easy sanding block sliver foam has removed now ready glue wing center rib 5-mm epoxy critical steps careful inboard half first Spread some epoxy contact surface areas wing panel careful get epoxy lead-outs bellcrank pushrod spar notches front spar groove can use front spar scrap /x sq wing spar material help locate wing correct position press wing center rib line up trailing edge center rib use masking tape temporarily hold place Hold inboard wing center rib until glue hardens Pull out front spar scrap wing spars stray globs epoxy wont glue place outboard wing panel lot easier Mix enough epoxy coat outboard side center rib front spar grooves Slip front spar through engine mount doubler its groove inboard half Put scrap wing spars place extend about 2 outboard wing side will serve guides Press outboard wing onto center rib Line up outboard trailing edge inboard wing trailing edge Use masking tape hold place keep front spar place Hold wing until epoxy hard ens Find two wing panel cradles exact size having matching cut-out lines will used hold wing panels perfect alignment spars drying Spread some aliphatic resin glue along spar groove top Slip top spar place Put wing cradles spar facing up Make sure wing panel cradles perfectly flat surface Put some weights spar hold place drying thoroughly dry same bottom spar Sand spar ends flush wing tips Press A2-in lead-out eyelets place inboard wing tip CyA-glue place Use filler micro-balloons baking soda around eyelets come through wing tip Make sure cross lead-outs feed through eyelets can use 5-mm epoxy contact cement foam glue A2 plywood wing tips foam make lead-outs same length about 2/2 extending beyond wing tip Pull lead-out far can bend 2/2 models chances wont have adjust handle model another use metal eyelets lineparts packages lead-out ends along -in lengths brass copper tachment tubes can flatten crimp same way did bellcrank Golden nel RadiO Control TI4 34 Chafl Kit #107 $3995 099 15 EngInes 46 Wingspoa Dealer ributor inquiriesPlease send 500 Phone 17031 273t593for Flyline Catalog Flyline Models Inc PO Bee 2136 FairIes Virginia 22031 USA PRODUCTS FAAMODELER Complete Line Exhaust Systems * Tuned Muffled Tuned Pipes Headers uri Mufflers Expansion Mufflers copter Ball Mufflers ialized Exhaust Systems Unsurpassed WorkmanshD & Performance Ikon NWST PO Box 566 Auburn WA 98071 206 941-8248 156 Model Aviation SlySir/von Lopez Continued aoe 154 specially formulated chemically balanced fuel top pellormance minimum engine wear weather condition CORBEN SUPER ACE 4 CYCLE POWERED 80 WINGSPAN SEND $100 FOR COMPLETE CATALOG OF FINE KITS THE MEN TRAINER Discover what thousands MEN TRAINER pilots have learnedthere jean easy way learn fly A/C Fly trainer specifically designed absolute beginner A/C Years design engineering flight testing updating have given plane its unique flight characteristics Make introduction A/C flying enjoyable experience MEN TRAINERs ultra stability slow flight characteristics will allow hands-off recovery control errors large size gives maximum visibility easy altitude recognition during learning process FEATURES Under-cambered wing ample dihedral slow 5 30 MPH stable flight 3 lb flying weight average radio installed Large roomy fuselage ease radio installationSturdy plywood-spruce-balsa construction withstand beginners abuse learning landEasy follow plans inatructionpre-formed landing gear braceTHRU-CUT die cutting combined TRI SQUARE-LOC construction fast easy assembly Complete hardware packageMonokote cutting guide Building time 12 25 hours THE TWIN TRAINER youve always wanted fly twin have put off cost problems hazards MEN has airplane youve wating fort MEN TWIN TRAINER Weve taken ultra stable MEN TRAINER has introduced thousands modelers pleasures RIC modeling converted simple twin design can flown trimotort new MEN TWIN TRAINER available two ways complete kit already own MEN TRAINERS ass simple building wing kit nose conversion requires no further modification airplane Just switch wings youre off Model Engineering Norwalk% THRU CUT die cutting combined TRI-SQUARE-LOC construc tion plywood betas spruce make construction fast simple MEN TWIN TRAINER can flown two 09 15 engines three channel radio easy-flying twinengine fun MEN TWIN TRAINER cant beat side Use razor blade metal yardstick trim excess foam trailing edge Make 3/s-in-dia bladder tube access hole drain vent hole Check plans exact location Sand entire wing smooth dont round thin trailing edge trailing edge should square sharp possible Coat engine mount area about 1-in foam area slow-cure epoxy Put some epoxy around bladder tube access drain vent holes fill gaps holes around front spar going decorate model now time use different product organization stickers should put AMA number model usually put name mod els also have found pre-mixed tempera paint posters works well foam heavy dont use too much simple stripe two outboard wing tip weight will give model enough color distinguished judges air Having worked AMA Nationals judge know color model helps accurate scoring have found Fas Cal very strong covering material structure Cover wing sheet Fas Cal top bottom Use sealing iron adhere shrink covering Ex periment scraps foam Fas Cal get right heat setting iron iron sets about 45% maximum heat Heat guns get too hot will melt foam THE MEN TRAINER extra strength can add 4-in-wide double layer Fas Cal center section model Sand Fas Cal just bit tail boom will located Use 5-mm epoxy glue place Sand stabilator airfoil shape Add nylon hinge material area control horn will lo cated use CyA glue Cover stab Fas Cal add double layer leading edge will sewn mount Using 36 45-lb-test braided nylon fishing line sew stabilator will need some large-eye sewing needles task sizes 18 22 tie knot 36-in length fishing line melt end over flame knot wont unravel line should go through hole twice Dont tighten up line until stabilator lined up trailing edge wing Tighten line check alignment again perfect put drop CyA glue hole Trim off excess line Locate control horn screw place just push pin through stabila tor wood screw will go serve pilot hole Hook up mini snap clevis adjust pushrod equal travel up down Use top hole control horn Epoxy penny outboard wing tip between spars Coat wing tips clear polyurethane varnish Also coat edges Fas Cal completely fuelproof structure Bolt Tee Dee 049 05 1 will ready fly /2A combat flown 012 lines 35-ft length Use inside holes small Sullivan Pylon Brand handle 11-2 Cox Tee Dee 049s like good bit nitromethane fuel run about 25% Bladders made 3/16-in latex tubing having /32-in wall have found very small black neoprene tubing works real well fuel line recotumend use small Hi Johnson fuel filter fill bladders will need disposable plastic syringe Make adapter medium fuel tubing 2-in length 3A2-in brass copper tubing end syringe will fit small neoprene fuel line adapter should securely fastened syringe copper wire Check warps before make first flight notice warps after first flight iron out Make adjustments pushrod control horn until get desired turning radius Practice can until know exactly what model capable doing Practice Combat flying will ready serious com petition Good luck can buy SlySir wing cores Phil Cartier/Core House Box 300A RD #2 Palmyra PA 17078 Write prices SAFE FLYING IS NO ACCIDENT March 1984 157 THE TWIN TRAINER
Edition: Model Aviation - 1984/03
Page Numbers: 62, 63, 64, 153, 154, 156, 157
Build model time author says assure yourself always having practice models Shown four six SlySirs built session Foam-winged Combat models arent easier build open framework versions have other advantages THIS IS THE BEST around /2A Combat model has designed date opinion wooden Combat models will fly just well far crash resistance goes foam has over balsa models Thats quite statement believe true have flying Combat since 1965 have designed three Combat mod els have published produced kit can see have fair amount experience Steve Hills designer SlySir has flying since 1955 has also designed several Combat models though first design published great Combat pilots Southern California have long recognized soundness Steves foam designs have used year after year What makes design superior others Its strength light weight answers models come between 5 5 oz 180 sq wing area design features tapering trailing edges airfoil section reduce weight wing tips foam wings cored-out except lead-out slot inboard wing l-in-dia hole bladder tank tube outboard wing rocket tube glued place actually acts spar strengthen center model Foam gets its strength its lightweight solid mass coring-out wing will greatly reduce its strength advantage An other advantage foam wing over balsa structure no open bays can distort covering flexes foam airfoil will remain constant 8-in tapering front spar helps hold center section together absorbs vibration engine cover models Left particular model No 9 first Fresno CA meet October 23 1983 Outboard wing stripes done tempera waterbased paintto serve both decoration tip weight Right Designer Steve Hills holds SlySir No 6 against Pacific Ocean background beach flying site Playa del Rey Steve developed design help promote AA Combat encourage limited budgets A9 Mrv-iI Aviation Left Aircraft-type locknuts 3-48 screws good assurance keeping engine tightly filter fuel line feeds engine clean mix Right Recommended engine Cox Tee Dee 049/051here disassembled cleaning fitting Author uses WD-40 Simichrome Fas Cal Mylar material sticky adhe sive side covering gives model much its overall strength use 36 45-lb-test braided nylon fishing line hinges stabilator provides strength flexibility crash resistance would say Cox Tee Dee 049 051 finest Combat engine ever made care taken set up break can get hours hours reliable service find out set up engine read Combat column December 1981 issue Flying Models met Steve Hills Lincoln NE AMA Nats 1979 As turned out live fairly close another Southern Cali fornia have doing lots flying building together since time Steve built eight models set building sessions have since built ad ditional six models waiting foam designs really refined before making switch balsa am now convinced foam way go going fly Combat however think will save time building foam instead balsa crash damage far less foamand repairs quicker eas ier models built correctly will bounce impact ground time Make sure have materials tools adhesives before start project will need following adhe sives 5-mm epoxy slow-cure epoxy ali phatic resin glue cyanoacrylate CyA glue could use some contact cement absolutely necessary will need tools modeling knife doubleedge razor blades razor saw wire cutters hammer vise propane torch longnose pli ers center punch paint brushes various small files hand power drill set drill bits Dremel Moto Shop access lots sandpaper various grits apparatus cutting foam wings book published RC Modeler magazine foam wings can great help can Paul Smiths Dragon article February issue Model Aviation have other articles published subject cutting foam wings will just have go through back issues modeling magazines order thoroughly familiar different setups Decide models want build gather materials buy balsa sheets will have buy 36-in lengths lot need model Make sure check wood densities called plans before buy wood can tremendous weight difference sheet balsa another use wrong weight wood will end up shifting balance point CG Try get friends build some models way can share work expense Make shopping list materials Nothing frustrating get project partly finished find short item hobby shop closed course Start making templates like use /6 plywood easy work templates include two cutting wing panels two cutting spar notches center rib tail boom stabilator mount bellcrank mount stabilator optional may made thin cardboard favorite method making templates use car bon paper typing paper under plans trace over part need plans cut out glue onto 1/6 plywood cut out jigsaw dont want trace over plans simply make photocopies parts need plans Sand file templates exact shape shown plans Remember final product will good templates Read can about cutting foam Once practice little will find isnt very difficult successfully will need cut foam blocks 15 long 8 wide end Left Stabilators sanded airfoil shape covered Fas Cal strength Note holes drilled center rib prior wing assembly Right Its important test-fit wing panels center rib before gluing Ply doubler sanded feather rib March 1984 63 FULL-SIZE PLANS AVAILABLE . SEE PAGE 170 1/32 PLYWOOD DOUBLER __ USE COO 5-3 PROPS I/B DOWELS COO TEE DEE 049 OR 051 TrP /4DRAIN VENT SPRUCE SPAR-IDLEI/R BALSA PLUS 3 V DIAMETER ROCKET TUBE ACCESS HOLE TOP VIEW 3/3D PLY BELLCRANK MOUNT 015 LESS-OUT EYELETS IDA I/3D ID DIR CABLE LEAD OUTSEDIT I-IDLE NOTE WING SPAN 30-7/IS LENUTH 13-I/O AREA NT SO IN CENTER-,2I 27szzsaTIP- CARL DOLOBERS THREADED PUOBROD THREADED NYLON CLEVIS I/B BALSA STABILATOR LISHY-WEISHY 3/B BALSA CENTER RIB MEDIUM WEISHT FOAM WINS 1/2 BALSA BOOM MEDIUM-WEISHY 3/3D PLYWOOD SUPPORT 36 TO 45 POUND TEST BRAIDED NYLON FISHINS LINE FOAM WIND CUTTINS_TEMPLATES DOUBLER TEMPLATE 3/B SO MAPLE ENSINE MOUNTS / SIDE VIEW BALANCE POINT SMALL HORN OW BALSA 3/3D PLY I/3D PLY 0 D2456 TEMPLATE ALIONMENT HOLES CENTER BELLCRANK MOUNT TEMPLATE SPAR NOTCH AND LEAD-OUT CHANNEL TEMPLATEU 3/3D PLY TIP SUPPORT TEMPLATE 3/3D PLYWOOD SLY SIR 1/2 FOAM WING COMBAT 1983 I/2A COMBAT NATIONAL CHAMPION PILOT PETE ATHANS DESIGNED BY STEVE HILLS DRAWN BY RICH VON LOPEZ TRACING BY JOE DEMARCO 6 wide other 1 /2 thick draw centerline ends foam block before templates put place clamp felt-tip pen vise height 3/4 draw ends blocks past pen way centerlines will exactly same order hollow out lead-out slot inboard wing have poke hole through wing cutting wire can passed through made jig holds piece 078 music wire follows will need piece 2 X 4 lumber 6 long Drill hole through 4-in width 2-in side exactly 3/4 edge hole needs very straight accurate have drill press use Cut 4-in section half have 2 x 2 x 6-inch pieces can nailed door heights 20 25 holes should 3/4 door Make sure holes two blocks line verti cally 078 music wire should now able travel up down straight line inboard foam wing panel block held below wire lower end wire heated propane torchThe wire can dropped through foam block melting straight hole its way Line up centerline wing tem plates centerline foam blocks hold place 2-in finishing nails wing templates have long thin extension trailing edge assist cutting operation cutting wire always comes out first wing tip side ex tension guides hot wire level other side wire finishes its cut keeps airfoil constant throughout cut Wing cutting best done two peo ple side cutting bow Start cuts leading edge wing travel slowly evenly over templates toward trailing edge Flip block over bottom half wing same way will notice have extra foam material trailing edge leave until later will protect trailing edge dents han dling Continued page 153 64 Model Aviation I/3D PLY WINS TIP I/B SQUARE SPRUCE SPARS CARL BOLOBERS 1/DA BELLCRANK I/3D PLY WINS TIP Y /wG TIP Left Pete Athans won 1AA Combat unofficial event 1983 AMA Nationals Pete ran out models borrowed authors SlySir final winning match Right Some 31 fliers entered AA Combat Nats unofficial event sponsored Cox Hobbiesl other records FAI files indicate Soviet minds tend seek exploit loopholes rules could expand previous sentence article would appropriately published some Journal Social Psy chology will limit myself express ing hope political officials will leave no loopholes rules now trying write about competitions involving nuclear weapons did record hard way proud have put together real good 4th July picnic food terrible dried-out ham cheese sandwich aerial fireworks spectacular Approxi mately million eight hundred sixtysix thousand consecutive explosions pro duced truly revolutionary celebration SlySir/von Lopez Continued oaue 64 Cut wings stage before start cutting spar notches use same cutting bow spar notches Pull out wing templates plug spar-notch templates will able use same nail holes both templates drilled same spots cut down front across bottom up back Dont spend too much time spot hot wire will melt foam intend Practice some scrap pieces foam Its really easy once get feel After have done first wing panel check grooves spruce spars dont fit perfectly make some adjustments templates try again Leave templates place inboard wing panel cutting wire can now passed through hole made 078 music wire tape end cutting wire piece music wire simply push through hole end cutting wire held surgical forceps Alligator clips electrical power source hooked up between forceps wing cutting wire go around lead-out slot twice stop center slot letting cutting wire cool cutting wire pulled out pull out center rib side rather wing tip side will also pull out foam material has cut out Any remaining foam can poked out wing spar hole bladder tank tube must cut 1-in-dia aluminum tube has sharpened Dremel tool will well found shower curtain rod hardware store exact size Just push turn tube wing will cut foam easily Mark aluminum tube 5 masking tape wont cut too far wing Sometimes round foam plug will come 3-FUNCTION ACCUTACH ITM O LCD Tachometer w/dual scale capability lox bOX @ Digital Voltmeter load /5 && checking/cycling TX/AX battery combosACC&I-tACl7 tor quick 1charging operationa 095 7 prepaid Noror Calqz~ Calif add 6% tax INC94086 wj5NLINE METAL SPECIALISTS COMPLETE THIS FORM AND AlTACH MAILING LABEL FROM RECENT ISSUE LET US KNOW WHERE YOU ARE GOING move please let us know advancesix weeks required change address Attach current MA mailing label check appropriate box mall Subscrip tion Dept Model Aviation 1810 Samuel Morse Dr Reston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION C CHANGE OF ADDRESS Non-AMA subscription rates $1800 12 months US possessions elsewhere tinciuding Canada Mexico $2400 US Schools $900 US Libraries $1350 NAME ADDRESS CITY/STATE _______________________________________________ ZIP ________________ MODEL AVIATION 1810 SAMUEL MORSE DR RESTON VA 22090 Great Lakes Model Company 5173626078 PO Dcx 308 Tawu5 CityIALL MAJOR COMPONENTS Ml 487631MOLDED URETHANE FOAM LEOS LASER * World Aerobatic Champion Top Quality Epoxy Gloss Fuse loge Cowl & Wheel Punts inum Landing Gear loan Wingto Span Wing Area 1440 sq inches Complete Step hy Step InAll Balsa Finish Kit structions Pictures Weight 16-20 Iho Engine 2-4 HP 95 99 PLUS $1* SHIPPING Direct Sales Only JR3 STICK Ideal Trainer An Outstanding Balsa & Fun Cit 72 Wing Span Wint Area-lOSt sq 12 Hour Assembly Time weighs 0 12 lbs 5nginn Sine 75 13 95 $7 9 PLUS SHIPPING Direct Sales Only COMING SOON Cap2O&Cap2l 60- 12 engines ~ j4Manufacturers Quality Kits Large Scale Engines out tube cut through wis half double-edge razor blade round piece foam should just fall out Use templates draw parts out line balsa plywood sheets cut out Drill holes need drilled time first parts glued together stabilator mount tail boom Use CyA aliphatic resin glue like use slowcure epoxy over entire unit fuel proofing added strength epoxy tail boom will fit onto wing Cut 1-in-dia rocket tube Estes BT5O length 5 tubes come 18-in lengths Coat inside tube slow-cure epoxy fiberglass resin polyurethane varnish let dry like let parts dry overnight first rocket tubes dry roll up some fine sandpaper sand inside no sharp edges very important sharp edges bumps will cause bladder tank ruptures Cut two round balsa plugs ends rocket tube Use 5-mm epoxy glue place making sure inside surfaces plugs also have coat epoxy Check fit tube wing Sand outside tube glue will adhere well coat thin coat aliphatic resin glue slide its hole outboard wing Make sure doesnt extend beyond edge wing Cut belicrank mount slot center rib drill two 2-in holes slot ends belicrank mount comes through inboard side model ing knife cut out slot As can see plans bellcrank mount has taper does slot can use small file get taper center rib Check fit often bellcrank mount taper put bellcrank mount cannot pull out rib Glue bellcrank mount slot aliphatic resin Now glue two maple engine mounts center rib aliphatic resin After dry glue 2 plywood engine mount doubler place again aliphatic resin rectangular hole must cut doubler front spar First drill hole through area carve out modeling knife everything dry cut mounts down shape shown plans Moto Shop Sand down doubler rear tapers flush rib Center punch location engine bolt holes drill out Put some CyA glue down hole making sure soaks wood Redrill holes prevents holes getting fuel soaked Drill holes dowels location shown plans glue dowels place aliphatic resin Attach 018 stranded lead-out cables /2A bellcrank C Goldberg #263 Sig #SH 234 Before sand over lead-out holes bellcrank take off sharp edges may cut lead-outs pushrod hole bellcrank will have drilled accept threaded pushrod leave 1 /2 2-in loops lead-outs bellcrank 3A2-in brass copper attachment tubes flatten lock lead-out cable placing vise hitting hammer have crimping tool can use Bend cut pushrod exact shape shown plans Slip pushrod bellcrank bolt assembly bellcrank mount use wood screw comes bellcrank set replaced bolt nut Add drop oil bellcrank bushing smooth operation Cut excess bellcrank bolt tapered groove has cut wings leading edge accommodate tapered front spar mark area felt-tip pen cut some material out modeling knife can sanded perfect fit can glue some sand paper edge scrap sq spar make exact sanding tool oper ation Fit front spar center rib assembly test fit outboard wing off work until fit perfect Some inboard wing has cut out lead-out slot bellcrank will fit binding Try cut out too much foam can create weak spot Mark location pushrod will pass out wing melt out slot hot wire Again make slot too big Continued page 156 154 Model Aviation 0 NEW BUSY PEOPLE KITS CITABRIA STINSON L5 9 CESSNAZLIN 50L 56 INCH ALL BALSA DELUXE PRE-FAB PROFILE FLYING MODELS $695 RUBBER POWER LOG $150 -MA LA MESA CA 92041 Power Soar New Heights C LT-50 Electric Motor 01 Cu equivelent gas engine displacement Send self-addressed stamped envelope catalog ap plication notes Leisure 11 Deerspring/Irvine/CA 92714 THIS FUEL FEATURES ORUST PREVENTION AGENTS ODETERGENTS OLUBRICAllON WITH HIGH FLASH POINTS WEmNG AGENTS FOR MORE EFFICIENT AND DEPENDABLE FUEL FLOW OANTI-FOAMING AGENTS TO PREVENT LEAN RUNS KEEPS YOUR ENGINE RUNNING COOL OAN ODORLESS HIGHLY REFINED FUEL OCHILDPROOF LIDS Available FAd 5 10 15 25 & 40% Nifro-Methane Contents Formulated synthetic lubricants Also available castor DEALERS WANlED DOMESTIC & OVERSEAS WE EXPORT competitrn fuel fast becoming ThE CHOICE tap profesionols tirot cash product Contact us price structureS ordering information Manufncturers Major Brand Distributors Model Engines Kits Radios Accessories SUPER K Fuels brand KINGS RADIO CONTROL HOBBIES INTERNATiONAl 3960 West 16 Ave Hialech Florida 33012 305 557-2024 inboard wing must made fit per fectly bellcrank area also en gine mount doubler latter easy sanding block sliver foam has removed now ready glue wing center rib 5-mm epoxy critical steps careful inboard half first Spread some epoxy contact surface areas wing panel careful get epoxy lead-outs bellcrank pushrod spar notches front spar groove can use front spar scrap /x sq wing spar material help locate wing correct position press wing center rib line up trailing edge center rib use masking tape temporarily hold place Hold inboard wing center rib until glue hardens Pull out front spar scrap wing spars stray globs epoxy wont glue place outboard wing panel lot easier Mix enough epoxy coat outboard side center rib front spar grooves Slip front spar through engine mount doubler its groove inboard half Put scrap wing spars place extend about 2 outboard wing side will serve guides Press outboard wing onto center rib Line up outboard trailing edge inboard wing trailing edge Use masking tape hold place keep front spar place Hold wing until epoxy hard ens Find two wing panel cradles exact size having matching cut-out lines will used hold wing panels perfect alignment spars drying Spread some aliphatic resin glue along spar groove top Slip top spar place Put wing cradles spar facing up Make sure wing panel cradles perfectly flat surface Put some weights spar hold place drying thoroughly dry same bottom spar Sand spar ends flush wing tips Press A2-in lead-out eyelets place inboard wing tip CyA-glue place Use filler micro-balloons baking soda around eyelets come through wing tip Make sure cross lead-outs feed through eyelets can use 5-mm epoxy contact cement foam glue A2 plywood wing tips foam make lead-outs same length about 2/2 extending beyond wing tip Pull lead-out far can bend 2/2 models chances wont have adjust handle model another use metal eyelets lineparts packages lead-out ends along -in lengths brass copper tachment tubes can flatten crimp same way did bellcrank Golden nel RadiO Control TI4 34 Chafl Kit #107 $3995 099 15 EngInes 46 Wingspoa Dealer ributor inquiriesPlease send 500 Phone 17031 273t593for Flyline Catalog Flyline Models Inc PO Bee 2136 FairIes Virginia 22031 USA PRODUCTS FAAMODELER Complete Line Exhaust Systems * Tuned Muffled Tuned Pipes Headers uri Mufflers Expansion Mufflers copter Ball Mufflers ialized Exhaust Systems Unsurpassed WorkmanshD & Performance Ikon NWST PO Box 566 Auburn WA 98071 206 941-8248 156 Model Aviation SlySir/von Lopez Continued aoe 154 specially formulated chemically balanced fuel top pellormance minimum engine wear weather condition CORBEN SUPER ACE 4 CYCLE POWERED 80 WINGSPAN SEND $100 FOR COMPLETE CATALOG OF FINE KITS THE MEN TRAINER Discover what thousands MEN TRAINER pilots have learnedthere jean easy way learn fly A/C Fly trainer specifically designed absolute beginner A/C Years design engineering flight testing updating have given plane its unique flight characteristics Make introduction A/C flying enjoyable experience MEN TRAINERs ultra stability slow flight characteristics will allow hands-off recovery control errors large size gives maximum visibility easy altitude recognition during learning process FEATURES Under-cambered wing ample dihedral slow 5 30 MPH stable flight 3 lb flying weight average radio installed Large roomy fuselage ease radio installationSturdy plywood-spruce-balsa construction withstand beginners abuse learning landEasy follow plans inatructionpre-formed landing gear braceTHRU-CUT die cutting combined TRI SQUARE-LOC construction fast easy assembly Complete hardware packageMonokote cutting guide Building time 12 25 hours THE TWIN TRAINER youve always wanted fly twin have put off cost problems hazards MEN has airplane youve wating fort MEN TWIN TRAINER Weve taken ultra stable MEN TRAINER has introduced thousands modelers pleasures RIC modeling converted simple twin design can flown trimotort new MEN TWIN TRAINER available two ways complete kit already own MEN TRAINERS ass simple building wing kit nose conversion requires no further modification airplane Just switch wings youre off Model Engineering Norwalk% THRU CUT die cutting combined TRI-SQUARE-LOC construc tion plywood betas spruce make construction fast simple MEN TWIN TRAINER can flown two 09 15 engines three channel radio easy-flying twinengine fun MEN TWIN TRAINER cant beat side Use razor blade metal yardstick trim excess foam trailing edge Make 3/s-in-dia bladder tube access hole drain vent hole Check plans exact location Sand entire wing smooth dont round thin trailing edge trailing edge should square sharp possible Coat engine mount area about 1-in foam area slow-cure epoxy Put some epoxy around bladder tube access drain vent holes fill gaps holes around front spar going decorate model now time use different product organization stickers should put AMA number model usually put name mod els also have found pre-mixed tempera paint posters works well foam heavy dont use too much simple stripe two outboard wing tip weight will give model enough color distinguished judges air Having worked AMA Nationals judge know color model helps accurate scoring have found Fas Cal very strong covering material structure Cover wing sheet Fas Cal top bottom Use sealing iron adhere shrink covering Ex periment scraps foam Fas Cal get right heat setting iron iron sets about 45% maximum heat Heat guns get too hot will melt foam THE MEN TRAINER extra strength can add 4-in-wide double layer Fas Cal center section model Sand Fas Cal just bit tail boom will located Use 5-mm epoxy glue place Sand stabilator airfoil shape Add nylon hinge material area control horn will lo cated use CyA glue Cover stab Fas Cal add double layer leading edge will sewn mount Using 36 45-lb-test braided nylon fishing line sew stabilator will need some large-eye sewing needles task sizes 18 22 tie knot 36-in length fishing line melt end over flame knot wont unravel line should go through hole twice Dont tighten up line until stabilator lined up trailing edge wing Tighten line check alignment again perfect put drop CyA glue hole Trim off excess line Locate control horn screw place just push pin through stabila tor wood screw will go serve pilot hole Hook up mini snap clevis adjust pushrod equal travel up down Use top hole control horn Epoxy penny outboard wing tip between spars Coat wing tips clear polyurethane varnish Also coat edges Fas Cal completely fuelproof structure Bolt Tee Dee 049 05 1 will ready fly /2A combat flown 012 lines 35-ft length Use inside holes small Sullivan Pylon Brand handle 11-2 Cox Tee Dee 049s like good bit nitromethane fuel run about 25% Bladders made 3/16-in latex tubing having /32-in wall have found very small black neoprene tubing works real well fuel line recotumend use small Hi Johnson fuel filter fill bladders will need disposable plastic syringe Make adapter medium fuel tubing 2-in length 3A2-in brass copper tubing end syringe will fit small neoprene fuel line adapter should securely fastened syringe copper wire Check warps before make first flight notice warps after first flight iron out Make adjustments pushrod control horn until get desired turning radius Practice can until know exactly what model capable doing Practice Combat flying will ready serious com petition Good luck can buy SlySir wing cores Phil Cartier/Core House Box 300A RD #2 Palmyra PA 17078 Write prices SAFE FLYING IS NO ACCIDENT March 1984 157 THE TWIN TRAINER
Edition: Model Aviation - 1984/03
Page Numbers: 62, 63, 64, 153, 154, 156, 157
Build model time author says assure yourself always having practice models Shown four six SlySirs built session Foam-winged Combat models arent easier build open framework versions have other advantages THIS IS THE BEST around /2A Combat model has designed date opinion wooden Combat models will fly just well far crash resistance goes foam has over balsa models Thats quite statement believe true have flying Combat since 1965 have designed three Combat mod els have published produced kit can see have fair amount experience Steve Hills designer SlySir has flying since 1955 has also designed several Combat models though first design published great Combat pilots Southern California have long recognized soundness Steves foam designs have used year after year What makes design superior others Its strength light weight answers models come between 5 5 oz 180 sq wing area design features tapering trailing edges airfoil section reduce weight wing tips foam wings cored-out except lead-out slot inboard wing l-in-dia hole bladder tank tube outboard wing rocket tube glued place actually acts spar strengthen center model Foam gets its strength its lightweight solid mass coring-out wing will greatly reduce its strength advantage An other advantage foam wing over balsa structure no open bays can distort covering flexes foam airfoil will remain constant 8-in tapering front spar helps hold center section together absorbs vibration engine cover models Left particular model No 9 first Fresno CA meet October 23 1983 Outboard wing stripes done tempera waterbased paintto serve both decoration tip weight Right Designer Steve Hills holds SlySir No 6 against Pacific Ocean background beach flying site Playa del Rey Steve developed design help promote AA Combat encourage limited budgets A9 Mrv-iI Aviation Left Aircraft-type locknuts 3-48 screws good assurance keeping engine tightly filter fuel line feeds engine clean mix Right Recommended engine Cox Tee Dee 049/051here disassembled cleaning fitting Author uses WD-40 Simichrome Fas Cal Mylar material sticky adhe sive side covering gives model much its overall strength use 36 45-lb-test braided nylon fishing line hinges stabilator provides strength flexibility crash resistance would say Cox Tee Dee 049 051 finest Combat engine ever made care taken set up break can get hours hours reliable service find out set up engine read Combat column December 1981 issue Flying Models met Steve Hills Lincoln NE AMA Nats 1979 As turned out live fairly close another Southern Cali fornia have doing lots flying building together since time Steve built eight models set building sessions have since built ad ditional six models waiting foam designs really refined before making switch balsa am now convinced foam way go going fly Combat however think will save time building foam instead balsa crash damage far less foamand repairs quicker eas ier models built correctly will bounce impact ground time Make sure have materials tools adhesives before start project will need following adhe sives 5-mm epoxy slow-cure epoxy ali phatic resin glue cyanoacrylate CyA glue could use some contact cement absolutely necessary will need tools modeling knife doubleedge razor blades razor saw wire cutters hammer vise propane torch longnose pli ers center punch paint brushes various small files hand power drill set drill bits Dremel Moto Shop access lots sandpaper various grits apparatus cutting foam wings book published RC Modeler magazine foam wings can great help can Paul Smiths Dragon article February issue Model Aviation have other articles published subject cutting foam wings will just have go through back issues modeling magazines order thoroughly familiar different setups Decide models want build gather materials buy balsa sheets will have buy 36-in lengths lot need model Make sure check wood densities called plans before buy wood can tremendous weight difference sheet balsa another use wrong weight wood will end up shifting balance point CG Try get friends build some models way can share work expense Make shopping list materials Nothing frustrating get project partly finished find short item hobby shop closed course Start making templates like use /6 plywood easy work templates include two cutting wing panels two cutting spar notches center rib tail boom stabilator mount bellcrank mount stabilator optional may made thin cardboard favorite method making templates use car bon paper typing paper under plans trace over part need plans cut out glue onto 1/6 plywood cut out jigsaw dont want trace over plans simply make photocopies parts need plans Sand file templates exact shape shown plans Remember final product will good templates Read can about cutting foam Once practice little will find isnt very difficult successfully will need cut foam blocks 15 long 8 wide end Left Stabilators sanded airfoil shape covered Fas Cal strength Note holes drilled center rib prior wing assembly Right Its important test-fit wing panels center rib before gluing Ply doubler sanded feather rib March 1984 63 FULL-SIZE PLANS AVAILABLE . SEE PAGE 170 1/32 PLYWOOD DOUBLER __ USE COO 5-3 PROPS I/B DOWELS COO TEE DEE 049 OR 051 TrP /4DRAIN VENT SPRUCE SPAR-IDLEI/R BALSA PLUS 3 V DIAMETER ROCKET TUBE ACCESS HOLE TOP VIEW 3/3D PLY BELLCRANK MOUNT 015 LESS-OUT EYELETS IDA I/3D ID DIR CABLE LEAD OUTSEDIT I-IDLE NOTE WING SPAN 30-7/IS LENUTH 13-I/O AREA NT SO IN CENTER-,2I 27szzsaTIP- CARL DOLOBERS THREADED PUOBROD THREADED NYLON CLEVIS I/B BALSA STABILATOR LISHY-WEISHY 3/B BALSA CENTER RIB MEDIUM WEISHT FOAM WINS 1/2 BALSA BOOM MEDIUM-WEISHY 3/3D PLYWOOD SUPPORT 36 TO 45 POUND TEST BRAIDED NYLON FISHINS LINE FOAM WIND CUTTINS_TEMPLATES DOUBLER TEMPLATE 3/B SO MAPLE ENSINE MOUNTS / SIDE VIEW BALANCE POINT SMALL HORN OW BALSA 3/3D PLY I/3D PLY 0 D2456 TEMPLATE ALIONMENT HOLES CENTER BELLCRANK MOUNT TEMPLATE SPAR NOTCH AND LEAD-OUT CHANNEL TEMPLATEU 3/3D PLY TIP SUPPORT TEMPLATE 3/3D PLYWOOD SLY SIR 1/2 FOAM WING COMBAT 1983 I/2A COMBAT NATIONAL CHAMPION PILOT PETE ATHANS DESIGNED BY STEVE HILLS DRAWN BY RICH VON LOPEZ TRACING BY JOE DEMARCO 6 wide other 1 /2 thick draw centerline ends foam block before templates put place clamp felt-tip pen vise height 3/4 draw ends blocks past pen way centerlines will exactly same order hollow out lead-out slot inboard wing have poke hole through wing cutting wire can passed through made jig holds piece 078 music wire follows will need piece 2 X 4 lumber 6 long Drill hole through 4-in width 2-in side exactly 3/4 edge hole needs very straight accurate have drill press use Cut 4-in section half have 2 x 2 x 6-inch pieces can nailed door heights 20 25 holes should 3/4 door Make sure holes two blocks line verti cally 078 music wire should now able travel up down straight line inboard foam wing panel block held below wire lower end wire heated propane torchThe wire can dropped through foam block melting straight hole its way Line up centerline wing tem plates centerline foam blocks hold place 2-in finishing nails wing templates have long thin extension trailing edge assist cutting operation cutting wire always comes out first wing tip side ex tension guides hot wire level other side wire finishes its cut keeps airfoil constant throughout cut Wing cutting best done two peo ple side cutting bow Start cuts leading edge wing travel slowly evenly over templates toward trailing edge Flip block over bottom half wing same way will notice have extra foam material trailing edge leave until later will protect trailing edge dents han dling Continued page 153 64 Model Aviation I/3D PLY WINS TIP I/B SQUARE SPRUCE SPARS CARL BOLOBERS 1/DA BELLCRANK I/3D PLY WINS TIP Y /wG TIP Left Pete Athans won 1AA Combat unofficial event 1983 AMA Nationals Pete ran out models borrowed authors SlySir final winning match Right Some 31 fliers entered AA Combat Nats unofficial event sponsored Cox Hobbiesl other records FAI files indicate Soviet minds tend seek exploit loopholes rules could expand previous sentence article would appropriately published some Journal Social Psy chology will limit myself express ing hope political officials will leave no loopholes rules now trying write about competitions involving nuclear weapons did record hard way proud have put together real good 4th July picnic food terrible dried-out ham cheese sandwich aerial fireworks spectacular Approxi mately million eight hundred sixtysix thousand consecutive explosions pro duced truly revolutionary celebration SlySir/von Lopez Continued oaue 64 Cut wings stage before start cutting spar notches use same cutting bow spar notches Pull out wing templates plug spar-notch templates will able use same nail holes both templates drilled same spots cut down front across bottom up back Dont spend too much time spot hot wire will melt foam intend Practice some scrap pieces foam Its really easy once get feel After have done first wing panel check grooves spruce spars dont fit perfectly make some adjustments templates try again Leave templates place inboard wing panel cutting wire can now passed through hole made 078 music wire tape end cutting wire piece music wire simply push through hole end cutting wire held surgical forceps Alligator clips electrical power source hooked up between forceps wing cutting wire go around lead-out slot twice stop center slot letting cutting wire cool cutting wire pulled out pull out center rib side rather wing tip side will also pull out foam material has cut out Any remaining foam can poked out wing spar hole bladder tank tube must cut 1-in-dia aluminum tube has sharpened Dremel tool will well found shower curtain rod hardware store exact size Just push turn tube wing will cut foam easily Mark aluminum tube 5 masking tape wont cut too far wing Sometimes round foam plug will come 3-FUNCTION ACCUTACH ITM O LCD Tachometer w/dual scale capability lox bOX @ Digital Voltmeter load /5 && checking/cycling TX/AX battery combosACC&I-tACl7 tor quick 1charging operationa 095 7 prepaid Noror Calqz~ Calif add 6% tax INC94086 wj5NLINE METAL SPECIALISTS COMPLETE THIS FORM AND AlTACH MAILING LABEL FROM RECENT ISSUE LET US KNOW WHERE YOU ARE GOING move please let us know advancesix weeks required change address Attach current MA mailing label check appropriate box mall Subscrip tion Dept Model Aviation 1810 Samuel Morse Dr Reston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION C CHANGE OF ADDRESS Non-AMA subscription rates $1800 12 months US possessions elsewhere tinciuding Canada Mexico $2400 US Schools $900 US Libraries $1350 NAME ADDRESS CITY/STATE _______________________________________________ ZIP ________________ MODEL AVIATION 1810 SAMUEL MORSE DR RESTON VA 22090 Great Lakes Model Company 5173626078 PO Dcx 308 Tawu5 CityIALL MAJOR COMPONENTS Ml 487631MOLDED URETHANE FOAM LEOS LASER * World Aerobatic Champion Top Quality Epoxy Gloss Fuse loge Cowl & Wheel Punts inum Landing Gear loan Wingto Span Wing Area 1440 sq inches Complete Step hy Step InAll Balsa Finish Kit structions Pictures Weight 16-20 Iho Engine 2-4 HP 95 99 PLUS $1* SHIPPING Direct Sales Only JR3 STICK Ideal Trainer An Outstanding Balsa & Fun Cit 72 Wing Span Wint Area-lOSt sq 12 Hour Assembly Time weighs 0 12 lbs 5nginn Sine 75 13 95 $7 9 PLUS SHIPPING Direct Sales Only COMING SOON Cap2O&Cap2l 60- 12 engines ~ j4Manufacturers Quality Kits Large Scale Engines out tube cut through wis half double-edge razor blade round piece foam should just fall out Use templates draw parts out line balsa plywood sheets cut out Drill holes need drilled time first parts glued together stabilator mount tail boom Use CyA aliphatic resin glue like use slowcure epoxy over entire unit fuel proofing added strength epoxy tail boom will fit onto wing Cut 1-in-dia rocket tube Estes BT5O length 5 tubes come 18-in lengths Coat inside tube slow-cure epoxy fiberglass resin polyurethane varnish let dry like let parts dry overnight first rocket tubes dry roll up some fine sandpaper sand inside no sharp edges very important sharp edges bumps will cause bladder tank ruptures Cut two round balsa plugs ends rocket tube Use 5-mm epoxy glue place making sure inside surfaces plugs also have coat epoxy Check fit tube wing Sand outside tube glue will adhere well coat thin coat aliphatic resin glue slide its hole outboard wing Make sure doesnt extend beyond edge wing Cut belicrank mount slot center rib drill two 2-in holes slot ends belicrank mount comes through inboard side model ing knife cut out slot As can see plans bellcrank mount has taper does slot can use small file get taper center rib Check fit often bellcrank mount taper put bellcrank mount cannot pull out rib Glue bellcrank mount slot aliphatic resin Now glue two maple engine mounts center rib aliphatic resin After dry glue 2 plywood engine mount doubler place again aliphatic resin rectangular hole must cut doubler front spar First drill hole through area carve out modeling knife everything dry cut mounts down shape shown plans Moto Shop Sand down doubler rear tapers flush rib Center punch location engine bolt holes drill out Put some CyA glue down hole making sure soaks wood Redrill holes prevents holes getting fuel soaked Drill holes dowels location shown plans glue dowels place aliphatic resin Attach 018 stranded lead-out cables /2A bellcrank C Goldberg #263 Sig #SH 234 Before sand over lead-out holes bellcrank take off sharp edges may cut lead-outs pushrod hole bellcrank will have drilled accept threaded pushrod leave 1 /2 2-in loops lead-outs bellcrank 3A2-in brass copper attachment tubes flatten lock lead-out cable placing vise hitting hammer have crimping tool can use Bend cut pushrod exact shape shown plans Slip pushrod bellcrank bolt assembly bellcrank mount use wood screw comes bellcrank set replaced bolt nut Add drop oil bellcrank bushing smooth operation Cut excess bellcrank bolt tapered groove has cut wings leading edge accommodate tapered front spar mark area felt-tip pen cut some material out modeling knife can sanded perfect fit can glue some sand paper edge scrap sq spar make exact sanding tool oper ation Fit front spar center rib assembly test fit outboard wing off work until fit perfect Some inboard wing has cut out lead-out slot bellcrank will fit binding Try cut out too much foam can create weak spot Mark location pushrod will pass out wing melt out slot hot wire Again make slot too big Continued page 156 154 Model Aviation 0 NEW BUSY PEOPLE KITS CITABRIA STINSON L5 9 CESSNAZLIN 50L 56 INCH ALL BALSA DELUXE PRE-FAB PROFILE FLYING MODELS $695 RUBBER POWER LOG $150 -MA LA MESA CA 92041 Power Soar New Heights C LT-50 Electric Motor 01 Cu equivelent gas engine displacement Send self-addressed stamped envelope catalog ap plication notes Leisure 11 Deerspring/Irvine/CA 92714 THIS FUEL FEATURES ORUST PREVENTION AGENTS ODETERGENTS OLUBRICAllON WITH HIGH FLASH POINTS WEmNG AGENTS FOR MORE EFFICIENT AND DEPENDABLE FUEL FLOW OANTI-FOAMING AGENTS TO PREVENT LEAN RUNS KEEPS YOUR ENGINE RUNNING COOL OAN ODORLESS HIGHLY REFINED FUEL OCHILDPROOF LIDS Available FAd 5 10 15 25 & 40% Nifro-Methane Contents Formulated synthetic lubricants Also available castor DEALERS WANlED DOMESTIC & OVERSEAS WE EXPORT competitrn fuel fast becoming ThE CHOICE tap profesionols tirot cash product Contact us price structureS ordering information Manufncturers Major Brand Distributors Model Engines Kits Radios Accessories SUPER K Fuels brand KINGS RADIO CONTROL HOBBIES INTERNATiONAl 3960 West 16 Ave Hialech Florida 33012 305 557-2024 inboard wing must made fit per fectly bellcrank area also en gine mount doubler latter easy sanding block sliver foam has removed now ready glue wing center rib 5-mm epoxy critical steps careful inboard half first Spread some epoxy contact surface areas wing panel careful get epoxy lead-outs bellcrank pushrod spar notches front spar groove can use front spar scrap /x sq wing spar material help locate wing correct position press wing center rib line up trailing edge center rib use masking tape temporarily hold place Hold inboard wing center rib until glue hardens Pull out front spar scrap wing spars stray globs epoxy wont glue place outboard wing panel lot easier Mix enough epoxy coat outboard side center rib front spar grooves Slip front spar through engine mount doubler its groove inboard half Put scrap wing spars place extend about 2 outboard wing side will serve guides Press outboard wing onto center rib Line up outboard trailing edge inboard wing trailing edge Use masking tape hold place keep front spar place Hold wing until epoxy hard ens Find two wing panel cradles exact size having matching cut-out lines will used hold wing panels perfect alignment spars drying Spread some aliphatic resin glue along spar groove top Slip top spar place Put wing cradles spar facing up Make sure wing panel cradles perfectly flat surface Put some weights spar hold place drying thoroughly dry same bottom spar Sand spar ends flush wing tips Press A2-in lead-out eyelets place inboard wing tip CyA-glue place Use filler micro-balloons baking soda around eyelets come through wing tip Make sure cross lead-outs feed through eyelets can use 5-mm epoxy contact cement foam glue A2 plywood wing tips foam make lead-outs same length about 2/2 extending beyond wing tip Pull lead-out far can bend 2/2 models chances wont have adjust handle model another use metal eyelets lineparts packages lead-out ends along -in lengths brass copper tachment tubes can flatten crimp same way did bellcrank Golden nel RadiO Control TI4 34 Chafl Kit #107 $3995 099 15 EngInes 46 Wingspoa Dealer ributor inquiriesPlease send 500 Phone 17031 273t593for Flyline Catalog Flyline Models Inc PO Bee 2136 FairIes Virginia 22031 USA PRODUCTS FAAMODELER Complete Line Exhaust Systems * Tuned Muffled Tuned Pipes Headers uri Mufflers Expansion Mufflers copter Ball Mufflers ialized Exhaust Systems Unsurpassed WorkmanshD & Performance Ikon NWST PO Box 566 Auburn WA 98071 206 941-8248 156 Model Aviation SlySir/von Lopez Continued aoe 154 specially formulated chemically balanced fuel top pellormance minimum engine wear weather condition CORBEN SUPER ACE 4 CYCLE POWERED 80 WINGSPAN SEND $100 FOR COMPLETE CATALOG OF FINE KITS THE MEN TRAINER Discover what thousands MEN TRAINER pilots have learnedthere jean easy way learn fly A/C Fly trainer specifically designed absolute beginner A/C Years design engineering flight testing updating have given plane its unique flight characteristics Make introduction A/C flying enjoyable experience MEN TRAINERs ultra stability slow flight characteristics will allow hands-off recovery control errors large size gives maximum visibility easy altitude recognition during learning process FEATURES Under-cambered wing ample dihedral slow 5 30 MPH stable flight 3 lb flying weight average radio installed Large roomy fuselage ease radio installationSturdy plywood-spruce-balsa construction withstand beginners abuse learning landEasy follow plans inatructionpre-formed landing gear braceTHRU-CUT die cutting combined TRI SQUARE-LOC construction fast easy assembly Complete hardware packageMonokote cutting guide Building time 12 25 hours THE TWIN TRAINER youve always wanted fly twin have put off cost problems hazards MEN has airplane youve wating fort MEN TWIN TRAINER Weve taken ultra stable MEN TRAINER has introduced thousands modelers pleasures RIC modeling converted simple twin design can flown trimotort new MEN TWIN TRAINER available two ways complete kit already own MEN TRAINERS ass simple building wing kit nose conversion requires no further modification airplane Just switch wings youre off Model Engineering Norwalk% THRU CUT die cutting combined TRI-SQUARE-LOC construc tion plywood betas spruce make construction fast simple MEN TWIN TRAINER can flown two 09 15 engines three channel radio easy-flying twinengine fun MEN TWIN TRAINER cant beat side Use razor blade metal yardstick trim excess foam trailing edge Make 3/s-in-dia bladder tube access hole drain vent hole Check plans exact location Sand entire wing smooth dont round thin trailing edge trailing edge should square sharp possible Coat engine mount area about 1-in foam area slow-cure epoxy Put some epoxy around bladder tube access drain vent holes fill gaps holes around front spar going decorate model now time use different product organization stickers should put AMA number model usually put name mod els also have found pre-mixed tempera paint posters works well foam heavy dont use too much simple stripe two outboard wing tip weight will give model enough color distinguished judges air Having worked AMA Nationals judge know color model helps accurate scoring have found Fas Cal very strong covering material structure Cover wing sheet Fas Cal top bottom Use sealing iron adhere shrink covering Ex periment scraps foam Fas Cal get right heat setting iron iron sets about 45% maximum heat Heat guns get too hot will melt foam THE MEN TRAINER extra strength can add 4-in-wide double layer Fas Cal center section model Sand Fas Cal just bit tail boom will located Use 5-mm epoxy glue place Sand stabilator airfoil shape Add nylon hinge material area control horn will lo cated use CyA glue Cover stab Fas Cal add double layer leading edge will sewn mount Using 36 45-lb-test braided nylon fishing line sew stabilator will need some large-eye sewing needles task sizes 18 22 tie knot 36-in length fishing line melt end over flame knot wont unravel line should go through hole twice Dont tighten up line until stabilator lined up trailing edge wing Tighten line check alignment again perfect put drop CyA glue hole Trim off excess line Locate control horn screw place just push pin through stabila tor wood screw will go serve pilot hole Hook up mini snap clevis adjust pushrod equal travel up down Use top hole control horn Epoxy penny outboard wing tip between spars Coat wing tips clear polyurethane varnish Also coat edges Fas Cal completely fuelproof structure Bolt Tee Dee 049 05 1 will ready fly /2A combat flown 012 lines 35-ft length Use inside holes small Sullivan Pylon Brand handle 11-2 Cox Tee Dee 049s like good bit nitromethane fuel run about 25% Bladders made 3/16-in latex tubing having /32-in wall have found very small black neoprene tubing works real well fuel line recotumend use small Hi Johnson fuel filter fill bladders will need disposable plastic syringe Make adapter medium fuel tubing 2-in length 3A2-in brass copper tubing end syringe will fit small neoprene fuel line adapter should securely fastened syringe copper wire Check warps before make first flight notice warps after first flight iron out Make adjustments pushrod control horn until get desired turning radius Practice can until know exactly what model capable doing Practice Combat flying will ready serious com petition Good luck can buy SlySir wing cores Phil Cartier/Core House Box 300A RD #2 Palmyra PA 17078 Write prices SAFE FLYING IS NO ACCIDENT March 1984 157 THE TWIN TRAINER
Edition: Model Aviation - 1984/03
Page Numbers: 62, 63, 64, 153, 154, 156, 157
Build model time author says assure yourself always having practice models Shown four six SlySirs built session Foam-winged Combat models arent easier build open framework versions have other advantages THIS IS THE BEST around /2A Combat model has designed date opinion wooden Combat models will fly just well far crash resistance goes foam has over balsa models Thats quite statement believe true have flying Combat since 1965 have designed three Combat mod els have published produced kit can see have fair amount experience Steve Hills designer SlySir has flying since 1955 has also designed several Combat models though first design published great Combat pilots Southern California have long recognized soundness Steves foam designs have used year after year What makes design superior others Its strength light weight answers models come between 5 5 oz 180 sq wing area design features tapering trailing edges airfoil section reduce weight wing tips foam wings cored-out except lead-out slot inboard wing l-in-dia hole bladder tank tube outboard wing rocket tube glued place actually acts spar strengthen center model Foam gets its strength its lightweight solid mass coring-out wing will greatly reduce its strength advantage An other advantage foam wing over balsa structure no open bays can distort covering flexes foam airfoil will remain constant 8-in tapering front spar helps hold center section together absorbs vibration engine cover models Left particular model No 9 first Fresno CA meet October 23 1983 Outboard wing stripes done tempera waterbased paintto serve both decoration tip weight Right Designer Steve Hills holds SlySir No 6 against Pacific Ocean background beach flying site Playa del Rey Steve developed design help promote AA Combat encourage limited budgets A9 Mrv-iI Aviation Left Aircraft-type locknuts 3-48 screws good assurance keeping engine tightly filter fuel line feeds engine clean mix Right Recommended engine Cox Tee Dee 049/051here disassembled cleaning fitting Author uses WD-40 Simichrome Fas Cal Mylar material sticky adhe sive side covering gives model much its overall strength use 36 45-lb-test braided nylon fishing line hinges stabilator provides strength flexibility crash resistance would say Cox Tee Dee 049 051 finest Combat engine ever made care taken set up break can get hours hours reliable service find out set up engine read Combat column December 1981 issue Flying Models met Steve Hills Lincoln NE AMA Nats 1979 As turned out live fairly close another Southern Cali fornia have doing lots flying building together since time Steve built eight models set building sessions have since built ad ditional six models waiting foam designs really refined before making switch balsa am now convinced foam way go going fly Combat however think will save time building foam instead balsa crash damage far less foamand repairs quicker eas ier models built correctly will bounce impact ground time Make sure have materials tools adhesives before start project will need following adhe sives 5-mm epoxy slow-cure epoxy ali phatic resin glue cyanoacrylate CyA glue could use some contact cement absolutely necessary will need tools modeling knife doubleedge razor blades razor saw wire cutters hammer vise propane torch longnose pli ers center punch paint brushes various small files hand power drill set drill bits Dremel Moto Shop access lots sandpaper various grits apparatus cutting foam wings book published RC Modeler magazine foam wings can great help can Paul Smiths Dragon article February issue Model Aviation have other articles published subject cutting foam wings will just have go through back issues modeling magazines order thoroughly familiar different setups Decide models want build gather materials buy balsa sheets will have buy 36-in lengths lot need model Make sure check wood densities called plans before buy wood can tremendous weight difference sheet balsa another use wrong weight wood will end up shifting balance point CG Try get friends build some models way can share work expense Make shopping list materials Nothing frustrating get project partly finished find short item hobby shop closed course Start making templates like use /6 plywood easy work templates include two cutting wing panels two cutting spar notches center rib tail boom stabilator mount bellcrank mount stabilator optional may made thin cardboard favorite method making templates use car bon paper typing paper under plans trace over part need plans cut out glue onto 1/6 plywood cut out jigsaw dont want trace over plans simply make photocopies parts need plans Sand file templates exact shape shown plans Remember final product will good templates Read can about cutting foam Once practice little will find isnt very difficult successfully will need cut foam blocks 15 long 8 wide end Left Stabilators sanded airfoil shape covered Fas Cal strength Note holes drilled center rib prior wing assembly Right Its important test-fit wing panels center rib before gluing Ply doubler sanded feather rib March 1984 63 FULL-SIZE PLANS AVAILABLE . SEE PAGE 170 1/32 PLYWOOD DOUBLER __ USE COO 5-3 PROPS I/B DOWELS COO TEE DEE 049 OR 051 TrP /4DRAIN VENT SPRUCE SPAR-IDLEI/R BALSA PLUS 3 V DIAMETER ROCKET TUBE ACCESS HOLE TOP VIEW 3/3D PLY BELLCRANK MOUNT 015 LESS-OUT EYELETS IDA I/3D ID DIR CABLE LEAD OUTSEDIT I-IDLE NOTE WING SPAN 30-7/IS LENUTH 13-I/O AREA NT SO IN CENTER-,2I 27szzsaTIP- CARL DOLOBERS THREADED PUOBROD THREADED NYLON CLEVIS I/B BALSA STABILATOR LISHY-WEISHY 3/B BALSA CENTER RIB MEDIUM WEISHT FOAM WINS 1/2 BALSA BOOM MEDIUM-WEISHY 3/3D PLYWOOD SUPPORT 36 TO 45 POUND TEST BRAIDED NYLON FISHINS LINE FOAM WIND CUTTINS_TEMPLATES DOUBLER TEMPLATE 3/B SO MAPLE ENSINE MOUNTS / SIDE VIEW BALANCE POINT SMALL HORN OW BALSA 3/3D PLY I/3D PLY 0 D2456 TEMPLATE ALIONMENT HOLES CENTER BELLCRANK MOUNT TEMPLATE SPAR NOTCH AND LEAD-OUT CHANNEL TEMPLATEU 3/3D PLY TIP SUPPORT TEMPLATE 3/3D PLYWOOD SLY SIR 1/2 FOAM WING COMBAT 1983 I/2A COMBAT NATIONAL CHAMPION PILOT PETE ATHANS DESIGNED BY STEVE HILLS DRAWN BY RICH VON LOPEZ TRACING BY JOE DEMARCO 6 wide other 1 /2 thick draw centerline ends foam block before templates put place clamp felt-tip pen vise height 3/4 draw ends blocks past pen way centerlines will exactly same order hollow out lead-out slot inboard wing have poke hole through wing cutting wire can passed through made jig holds piece 078 music wire follows will need piece 2 X 4 lumber 6 long Drill hole through 4-in width 2-in side exactly 3/4 edge hole needs very straight accurate have drill press use Cut 4-in section half have 2 x 2 x 6-inch pieces can nailed door heights 20 25 holes should 3/4 door Make sure holes two blocks line verti cally 078 music wire should now able travel up down straight line inboard foam wing panel block held below wire lower end wire heated propane torchThe wire can dropped through foam block melting straight hole its way Line up centerline wing tem plates centerline foam blocks hold place 2-in finishing nails wing templates have long thin extension trailing edge assist cutting operation cutting wire always comes out first wing tip side ex tension guides hot wire level other side wire finishes its cut keeps airfoil constant throughout cut Wing cutting best done two peo ple side cutting bow Start cuts leading edge wing travel slowly evenly over templates toward trailing edge Flip block over bottom half wing same way will notice have extra foam material trailing edge leave until later will protect trailing edge dents han dling Continued page 153 64 Model Aviation I/3D PLY WINS TIP I/B SQUARE SPRUCE SPARS CARL BOLOBERS 1/DA BELLCRANK I/3D PLY WINS TIP Y /wG TIP Left Pete Athans won 1AA Combat unofficial event 1983 AMA Nationals Pete ran out models borrowed authors SlySir final winning match Right Some 31 fliers entered AA Combat Nats unofficial event sponsored Cox Hobbiesl other records FAI files indicate Soviet minds tend seek exploit loopholes rules could expand previous sentence article would appropriately published some Journal Social Psy chology will limit myself express ing hope political officials will leave no loopholes rules now trying write about competitions involving nuclear weapons did record hard way proud have put together real good 4th July picnic food terrible dried-out ham cheese sandwich aerial fireworks spectacular Approxi mately million eight hundred sixtysix thousand consecutive explosions pro duced truly revolutionary celebration SlySir/von Lopez Continued oaue 64 Cut wings stage before start cutting spar notches use same cutting bow spar notches Pull out wing templates plug spar-notch templates will able use same nail holes both templates drilled same spots cut down front across bottom up back Dont spend too much time spot hot wire will melt foam intend Practice some scrap pieces foam Its really easy once get feel After have done first wing panel check grooves spruce spars dont fit perfectly make some adjustments templates try again Leave templates place inboard wing panel cutting wire can now passed through hole made 078 music wire tape end cutting wire piece music wire simply push through hole end cutting wire held surgical forceps Alligator clips electrical power source hooked up between forceps wing cutting wire go around lead-out slot twice stop center slot letting cutting wire cool cutting wire pulled out pull out center rib side rather wing tip side will also pull out foam material has cut out Any remaining foam can poked out wing spar hole bladder tank tube must cut 1-in-dia aluminum tube has sharpened Dremel tool will well found shower curtain rod hardware store exact size Just push turn tube wing will cut foam easily Mark aluminum tube 5 masking tape wont cut too far wing Sometimes round foam plug will come 3-FUNCTION ACCUTACH ITM O LCD Tachometer w/dual scale capability lox bOX @ Digital Voltmeter load /5 && checking/cycling TX/AX battery combosACC&I-tACl7 tor quick 1charging operationa 095 7 prepaid Noror Calqz~ Calif add 6% tax INC94086 wj5NLINE METAL SPECIALISTS COMPLETE THIS FORM AND AlTACH MAILING LABEL FROM RECENT ISSUE LET US KNOW WHERE YOU ARE GOING move please let us know advancesix weeks required change address Attach current MA mailing label check appropriate box mall Subscrip tion Dept Model Aviation 1810 Samuel Morse Dr Reston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION C CHANGE OF ADDRESS Non-AMA subscription rates $1800 12 months US possessions elsewhere tinciuding Canada Mexico $2400 US Schools $900 US Libraries $1350 NAME ADDRESS CITY/STATE _______________________________________________ ZIP ________________ MODEL AVIATION 1810 SAMUEL MORSE DR RESTON VA 22090 Great Lakes Model Company 5173626078 PO Dcx 308 Tawu5 CityIALL MAJOR COMPONENTS Ml 487631MOLDED URETHANE FOAM LEOS LASER * World Aerobatic Champion Top Quality Epoxy Gloss Fuse loge Cowl & Wheel Punts inum Landing Gear loan Wingto Span Wing Area 1440 sq inches Complete Step hy Step InAll Balsa Finish Kit structions Pictures Weight 16-20 Iho Engine 2-4 HP 95 99 PLUS $1* SHIPPING Direct Sales Only JR3 STICK Ideal Trainer An Outstanding Balsa & Fun Cit 72 Wing Span Wint Area-lOSt sq 12 Hour Assembly Time weighs 0 12 lbs 5nginn Sine 75 13 95 $7 9 PLUS SHIPPING Direct Sales Only COMING SOON Cap2O&Cap2l 60- 12 engines ~ j4Manufacturers Quality Kits Large Scale Engines out tube cut through wis half double-edge razor blade round piece foam should just fall out Use templates draw parts out line balsa plywood sheets cut out Drill holes need drilled time first parts glued together stabilator mount tail boom Use CyA aliphatic resin glue like use slowcure epoxy over entire unit fuel proofing added strength epoxy tail boom will fit onto wing Cut 1-in-dia rocket tube Estes BT5O length 5 tubes come 18-in lengths Coat inside tube slow-cure epoxy fiberglass resin polyurethane varnish let dry like let parts dry overnight first rocket tubes dry roll up some fine sandpaper sand inside no sharp edges very important sharp edges bumps will cause bladder tank ruptures Cut two round balsa plugs ends rocket tube Use 5-mm epoxy glue place making sure inside surfaces plugs also have coat epoxy Check fit tube wing Sand outside tube glue will adhere well coat thin coat aliphatic resin glue slide its hole outboard wing Make sure doesnt extend beyond edge wing Cut belicrank mount slot center rib drill two 2-in holes slot ends belicrank mount comes through inboard side model ing knife cut out slot As can see plans bellcrank mount has taper does slot can use small file get taper center rib Check fit often bellcrank mount taper put bellcrank mount cannot pull out rib Glue bellcrank mount slot aliphatic resin Now glue two maple engine mounts center rib aliphatic resin After dry glue 2 plywood engine mount doubler place again aliphatic resin rectangular hole must cut doubler front spar First drill hole through area carve out modeling knife everything dry cut mounts down shape shown plans Moto Shop Sand down doubler rear tapers flush rib Center punch location engine bolt holes drill out Put some CyA glue down hole making sure soaks wood Redrill holes prevents holes getting fuel soaked Drill holes dowels location shown plans glue dowels place aliphatic resin Attach 018 stranded lead-out cables /2A bellcrank C Goldberg #263 Sig #SH 234 Before sand over lead-out holes bellcrank take off sharp edges may cut lead-outs pushrod hole bellcrank will have drilled accept threaded pushrod leave 1 /2 2-in loops lead-outs bellcrank 3A2-in brass copper attachment tubes flatten lock lead-out cable placing vise hitting hammer have crimping tool can use Bend cut pushrod exact shape shown plans Slip pushrod bellcrank bolt assembly bellcrank mount use wood screw comes bellcrank set replaced bolt nut Add drop oil bellcrank bushing smooth operation Cut excess bellcrank bolt tapered groove has cut wings leading edge accommodate tapered front spar mark area felt-tip pen cut some material out modeling knife can sanded perfect fit can glue some sand paper edge scrap sq spar make exact sanding tool oper ation Fit front spar center rib assembly test fit outboard wing off work until fit perfect Some inboard wing has cut out lead-out slot bellcrank will fit binding Try cut out too much foam can create weak spot Mark location pushrod will pass out wing melt out slot hot wire Again make slot too big Continued page 156 154 Model Aviation 0 NEW BUSY PEOPLE KITS CITABRIA STINSON L5 9 CESSNAZLIN 50L 56 INCH ALL BALSA DELUXE PRE-FAB PROFILE FLYING MODELS $695 RUBBER POWER LOG $150 -MA LA MESA CA 92041 Power Soar New Heights C LT-50 Electric Motor 01 Cu equivelent gas engine displacement Send self-addressed stamped envelope catalog ap plication notes Leisure 11 Deerspring/Irvine/CA 92714 THIS FUEL FEATURES ORUST PREVENTION AGENTS ODETERGENTS OLUBRICAllON WITH HIGH FLASH POINTS WEmNG AGENTS FOR MORE EFFICIENT AND DEPENDABLE FUEL FLOW OANTI-FOAMING AGENTS TO PREVENT LEAN RUNS KEEPS YOUR ENGINE RUNNING COOL OAN ODORLESS HIGHLY REFINED FUEL OCHILDPROOF LIDS Available FAd 5 10 15 25 & 40% Nifro-Methane Contents Formulated synthetic lubricants Also available castor DEALERS WANlED DOMESTIC & OVERSEAS WE EXPORT competitrn fuel fast becoming ThE CHOICE tap profesionols tirot cash product Contact us price structureS ordering information Manufncturers Major Brand Distributors Model Engines Kits Radios Accessories SUPER K Fuels brand KINGS RADIO CONTROL HOBBIES INTERNATiONAl 3960 West 16 Ave Hialech Florida 33012 305 557-2024 inboard wing must made fit per fectly bellcrank area also en gine mount doubler latter easy sanding block sliver foam has removed now ready glue wing center rib 5-mm epoxy critical steps careful inboard half first Spread some epoxy contact surface areas wing panel careful get epoxy lead-outs bellcrank pushrod spar notches front spar groove can use front spar scrap /x sq wing spar material help locate wing correct position press wing center rib line up trailing edge center rib use masking tape temporarily hold place Hold inboard wing center rib until glue hardens Pull out front spar scrap wing spars stray globs epoxy wont glue place outboard wing panel lot easier Mix enough epoxy coat outboard side center rib front spar grooves Slip front spar through engine mount doubler its groove inboard half Put scrap wing spars place extend about 2 outboard wing side will serve guides Press outboard wing onto center rib Line up outboard trailing edge inboard wing trailing edge Use masking tape hold place keep front spar place Hold wing until epoxy hard ens Find two wing panel cradles exact size having matching cut-out lines will used hold wing panels perfect alignment spars drying Spread some aliphatic resin glue along spar groove top Slip top spar place Put wing cradles spar facing up Make sure wing panel cradles perfectly flat surface Put some weights spar hold place drying thoroughly dry same bottom spar Sand spar ends flush wing tips Press A2-in lead-out eyelets place inboard wing tip CyA-glue place Use filler micro-balloons baking soda around eyelets come through wing tip Make sure cross lead-outs feed through eyelets can use 5-mm epoxy contact cement foam glue A2 plywood wing tips foam make lead-outs same length about 2/2 extending beyond wing tip Pull lead-out far can bend 2/2 models chances wont have adjust handle model another use metal eyelets lineparts packages lead-out ends along -in lengths brass copper tachment tubes can flatten crimp same way did bellcrank Golden nel RadiO Control TI4 34 Chafl Kit #107 $3995 099 15 EngInes 46 Wingspoa Dealer ributor inquiriesPlease send 500 Phone 17031 273t593for Flyline Catalog Flyline Models Inc PO Bee 2136 FairIes Virginia 22031 USA PRODUCTS FAAMODELER Complete Line Exhaust Systems * Tuned Muffled Tuned Pipes Headers uri Mufflers Expansion Mufflers copter Ball Mufflers ialized Exhaust Systems Unsurpassed WorkmanshD & Performance Ikon NWST PO Box 566 Auburn WA 98071 206 941-8248 156 Model Aviation SlySir/von Lopez Continued aoe 154 specially formulated chemically balanced fuel top pellormance minimum engine wear weather condition CORBEN SUPER ACE 4 CYCLE POWERED 80 WINGSPAN SEND $100 FOR COMPLETE CATALOG OF FINE KITS THE MEN TRAINER Discover what thousands MEN TRAINER pilots have learnedthere jean easy way learn fly A/C Fly trainer specifically designed absolute beginner A/C Years design engineering flight testing updating have given plane its unique flight characteristics Make introduction A/C flying enjoyable experience MEN TRAINERs ultra stability slow flight characteristics will allow hands-off recovery control errors large size gives maximum visibility easy altitude recognition during learning process FEATURES Under-cambered wing ample dihedral slow 5 30 MPH stable flight 3 lb flying weight average radio installed Large roomy fuselage ease radio installationSturdy plywood-spruce-balsa construction withstand beginners abuse learning landEasy follow plans inatructionpre-formed landing gear braceTHRU-CUT die cutting combined TRI SQUARE-LOC construction fast easy assembly Complete hardware packageMonokote cutting guide Building time 12 25 hours THE TWIN TRAINER youve always wanted fly twin have put off cost problems hazards MEN has airplane youve wating fort MEN TWIN TRAINER Weve taken ultra stable MEN TRAINER has introduced thousands modelers pleasures RIC modeling converted simple twin design can flown trimotort new MEN TWIN TRAINER available two ways complete kit already own MEN TRAINERS ass simple building wing kit nose conversion requires no further modification airplane Just switch wings youre off Model Engineering Norwalk% THRU CUT die cutting combined TRI-SQUARE-LOC construc tion plywood betas spruce make construction fast simple MEN TWIN TRAINER can flown two 09 15 engines three channel radio easy-flying twinengine fun MEN TWIN TRAINER cant beat side Use razor blade metal yardstick trim excess foam trailing edge Make 3/s-in-dia bladder tube access hole drain vent hole Check plans exact location Sand entire wing smooth dont round thin trailing edge trailing edge should square sharp possible Coat engine mount area about 1-in foam area slow-cure epoxy Put some epoxy around bladder tube access drain vent holes fill gaps holes around front spar going decorate model now time use different product organization stickers should put AMA number model usually put name mod els also have found pre-mixed tempera paint posters works well foam heavy dont use too much simple stripe two outboard wing tip weight will give model enough color distinguished judges air Having worked AMA Nationals judge know color model helps accurate scoring have found Fas Cal very strong covering material structure Cover wing sheet Fas Cal top bottom Use sealing iron adhere shrink covering Ex periment scraps foam Fas Cal get right heat setting iron iron sets about 45% maximum heat Heat guns get too hot will melt foam THE MEN TRAINER extra strength can add 4-in-wide double layer Fas Cal center section model Sand Fas Cal just bit tail boom will located Use 5-mm epoxy glue place Sand stabilator airfoil shape Add nylon hinge material area control horn will lo cated use CyA glue Cover stab Fas Cal add double layer leading edge will sewn mount Using 36 45-lb-test braided nylon fishing line sew stabilator will need some large-eye sewing needles task sizes 18 22 tie knot 36-in length fishing line melt end over flame knot wont unravel line should go through hole twice Dont tighten up line until stabilator lined up trailing edge wing Tighten line check alignment again perfect put drop CyA glue hole Trim off excess line Locate control horn screw place just push pin through stabila tor wood screw will go serve pilot hole Hook up mini snap clevis adjust pushrod equal travel up down Use top hole control horn Epoxy penny outboard wing tip between spars Coat wing tips clear polyurethane varnish Also coat edges Fas Cal completely fuelproof structure Bolt Tee Dee 049 05 1 will ready fly /2A combat flown 012 lines 35-ft length Use inside holes small Sullivan Pylon Brand handle 11-2 Cox Tee Dee 049s like good bit nitromethane fuel run about 25% Bladders made 3/16-in latex tubing having /32-in wall have found very small black neoprene tubing works real well fuel line recotumend use small Hi Johnson fuel filter fill bladders will need disposable plastic syringe Make adapter medium fuel tubing 2-in length 3A2-in brass copper tubing end syringe will fit small neoprene fuel line adapter should securely fastened syringe copper wire Check warps before make first flight notice warps after first flight iron out Make adjustments pushrod control horn until get desired turning radius Practice can until know exactly what model capable doing Practice Combat flying will ready serious com petition Good luck can buy SlySir wing cores Phil Cartier/Core House Box 300A RD #2 Palmyra PA 17078 Write prices SAFE FLYING IS NO ACCIDENT March 1984 157 THE TWIN TRAINER
Edition: Model Aviation - 1984/03
Page Numbers: 62, 63, 64, 153, 154, 156, 157
Build model time author says assure yourself always having practice models Shown four six SlySirs built session Foam-winged Combat models arent easier build open framework versions have other advantages THIS IS THE BEST around /2A Combat model has designed date opinion wooden Combat models will fly just well far crash resistance goes foam has over balsa models Thats quite statement believe true have flying Combat since 1965 have designed three Combat mod els have published produced kit can see have fair amount experience Steve Hills designer SlySir has flying since 1955 has also designed several Combat models though first design published great Combat pilots Southern California have long recognized soundness Steves foam designs have used year after year What makes design superior others Its strength light weight answers models come between 5 5 oz 180 sq wing area design features tapering trailing edges airfoil section reduce weight wing tips foam wings cored-out except lead-out slot inboard wing l-in-dia hole bladder tank tube outboard wing rocket tube glued place actually acts spar strengthen center model Foam gets its strength its lightweight solid mass coring-out wing will greatly reduce its strength advantage An other advantage foam wing over balsa structure no open bays can distort covering flexes foam airfoil will remain constant 8-in tapering front spar helps hold center section together absorbs vibration engine cover models Left particular model No 9 first Fresno CA meet October 23 1983 Outboard wing stripes done tempera waterbased paintto serve both decoration tip weight Right Designer Steve Hills holds SlySir No 6 against Pacific Ocean background beach flying site Playa del Rey Steve developed design help promote AA Combat encourage limited budgets A9 Mrv-iI Aviation Left Aircraft-type locknuts 3-48 screws good assurance keeping engine tightly filter fuel line feeds engine clean mix Right Recommended engine Cox Tee Dee 049/051here disassembled cleaning fitting Author uses WD-40 Simichrome Fas Cal Mylar material sticky adhe sive side covering gives model much its overall strength use 36 45-lb-test braided nylon fishing line hinges stabilator provides strength flexibility crash resistance would say Cox Tee Dee 049 051 finest Combat engine ever made care taken set up break can get hours hours reliable service find out set up engine read Combat column December 1981 issue Flying Models met Steve Hills Lincoln NE AMA Nats 1979 As turned out live fairly close another Southern Cali fornia have doing lots flying building together since time Steve built eight models set building sessions have since built ad ditional six models waiting foam designs really refined before making switch balsa am now convinced foam way go going fly Combat however think will save time building foam instead balsa crash damage far less foamand repairs quicker eas ier models built correctly will bounce impact ground time Make sure have materials tools adhesives before start project will need following adhe sives 5-mm epoxy slow-cure epoxy ali phatic resin glue cyanoacrylate CyA glue could use some contact cement absolutely necessary will need tools modeling knife doubleedge razor blades razor saw wire cutters hammer vise propane torch longnose pli ers center punch paint brushes various small files hand power drill set drill bits Dremel Moto Shop access lots sandpaper various grits apparatus cutting foam wings book published RC Modeler magazine foam wings can great help can Paul Smiths Dragon article February issue Model Aviation have other articles published subject cutting foam wings will just have go through back issues modeling magazines order thoroughly familiar different setups Decide models want build gather materials buy balsa sheets will have buy 36-in lengths lot need model Make sure check wood densities called plans before buy wood can tremendous weight difference sheet balsa another use wrong weight wood will end up shifting balance point CG Try get friends build some models way can share work expense Make shopping list materials Nothing frustrating get project partly finished find short item hobby shop closed course Start making templates like use /6 plywood easy work templates include two cutting wing panels two cutting spar notches center rib tail boom stabilator mount bellcrank mount stabilator optional may made thin cardboard favorite method making templates use car bon paper typing paper under plans trace over part need plans cut out glue onto 1/6 plywood cut out jigsaw dont want trace over plans simply make photocopies parts need plans Sand file templates exact shape shown plans Remember final product will good templates Read can about cutting foam Once practice little will find isnt very difficult successfully will need cut foam blocks 15 long 8 wide end Left Stabilators sanded airfoil shape covered Fas Cal strength Note holes drilled center rib prior wing assembly Right Its important test-fit wing panels center rib before gluing Ply doubler sanded feather rib March 1984 63 FULL-SIZE PLANS AVAILABLE . SEE PAGE 170 1/32 PLYWOOD DOUBLER __ USE COO 5-3 PROPS I/B DOWELS COO TEE DEE 049 OR 051 TrP /4DRAIN VENT SPRUCE SPAR-IDLEI/R BALSA PLUS 3 V DIAMETER ROCKET TUBE ACCESS HOLE TOP VIEW 3/3D PLY BELLCRANK MOUNT 015 LESS-OUT EYELETS IDA I/3D ID DIR CABLE LEAD OUTSEDIT I-IDLE NOTE WING SPAN 30-7/IS LENUTH 13-I/O AREA NT SO IN CENTER-,2I 27szzsaTIP- CARL DOLOBERS THREADED PUOBROD THREADED NYLON CLEVIS I/B BALSA STABILATOR LISHY-WEISHY 3/B BALSA CENTER RIB MEDIUM WEISHT FOAM WINS 1/2 BALSA BOOM MEDIUM-WEISHY 3/3D PLYWOOD SUPPORT 36 TO 45 POUND TEST BRAIDED NYLON FISHINS LINE FOAM WIND CUTTINS_TEMPLATES DOUBLER TEMPLATE 3/B SO MAPLE ENSINE MOUNTS / SIDE VIEW BALANCE POINT SMALL HORN OW BALSA 3/3D PLY I/3D PLY 0 D2456 TEMPLATE ALIONMENT HOLES CENTER BELLCRANK MOUNT TEMPLATE SPAR NOTCH AND LEAD-OUT CHANNEL TEMPLATEU 3/3D PLY TIP SUPPORT TEMPLATE 3/3D PLYWOOD SLY SIR 1/2 FOAM WING COMBAT 1983 I/2A COMBAT NATIONAL CHAMPION PILOT PETE ATHANS DESIGNED BY STEVE HILLS DRAWN BY RICH VON LOPEZ TRACING BY JOE DEMARCO 6 wide other 1 /2 thick draw centerline ends foam block before templates put place clamp felt-tip pen vise height 3/4 draw ends blocks past pen way centerlines will exactly same order hollow out lead-out slot inboard wing have poke hole through wing cutting wire can passed through made jig holds piece 078 music wire follows will need piece 2 X 4 lumber 6 long Drill hole through 4-in width 2-in side exactly 3/4 edge hole needs very straight accurate have drill press use Cut 4-in section half have 2 x 2 x 6-inch pieces can nailed door heights 20 25 holes should 3/4 door Make sure holes two blocks line verti cally 078 music wire should now able travel up down straight line inboard foam wing panel block held below wire lower end wire heated propane torchThe wire can dropped through foam block melting straight hole its way Line up centerline wing tem plates centerline foam blocks hold place 2-in finishing nails wing templates have long thin extension trailing edge assist cutting operation cutting wire always comes out first wing tip side ex tension guides hot wire level other side wire finishes its cut keeps airfoil constant throughout cut Wing cutting best done two peo ple side cutting bow Start cuts leading edge wing travel slowly evenly over templates toward trailing edge Flip block over bottom half wing same way will notice have extra foam material trailing edge leave until later will protect trailing edge dents han dling Continued page 153 64 Model Aviation I/3D PLY WINS TIP I/B SQUARE SPRUCE SPARS CARL BOLOBERS 1/DA BELLCRANK I/3D PLY WINS TIP Y /wG TIP Left Pete Athans won 1AA Combat unofficial event 1983 AMA Nationals Pete ran out models borrowed authors SlySir final winning match Right Some 31 fliers entered AA Combat Nats unofficial event sponsored Cox Hobbiesl other records FAI files indicate Soviet minds tend seek exploit loopholes rules could expand previous sentence article would appropriately published some Journal Social Psy chology will limit myself express ing hope political officials will leave no loopholes rules now trying write about competitions involving nuclear weapons did record hard way proud have put together real good 4th July picnic food terrible dried-out ham cheese sandwich aerial fireworks spectacular Approxi mately million eight hundred sixtysix thousand consecutive explosions pro duced truly revolutionary celebration SlySir/von Lopez Continued oaue 64 Cut wings stage before start cutting spar notches use same cutting bow spar notches Pull out wing templates plug spar-notch templates will able use same nail holes both templates drilled same spots cut down front across bottom up back Dont spend too much time spot hot wire will melt foam intend Practice some scrap pieces foam Its really easy once get feel After have done first wing panel check grooves spruce spars dont fit perfectly make some adjustments templates try again Leave templates place inboard wing panel cutting wire can now passed through hole made 078 music wire tape end cutting wire piece music wire simply push through hole end cutting wire held surgical forceps Alligator clips electrical power source hooked up between forceps wing cutting wire go around lead-out slot twice stop center slot letting cutting wire cool cutting wire pulled out pull out center rib side rather wing tip side will also pull out foam material has cut out Any remaining foam can poked out wing spar hole bladder tank tube must cut 1-in-dia aluminum tube has sharpened Dremel tool will well found shower curtain rod hardware store exact size Just push turn tube wing will cut foam easily Mark aluminum tube 5 masking tape wont cut too far wing Sometimes round foam plug will come 3-FUNCTION ACCUTACH ITM O LCD Tachometer w/dual scale capability lox bOX @ Digital Voltmeter load /5 && checking/cycling TX/AX battery combosACC&I-tACl7 tor quick 1charging operationa 095 7 prepaid Noror Calqz~ Calif add 6% tax INC94086 wj5NLINE METAL SPECIALISTS COMPLETE THIS FORM AND AlTACH MAILING LABEL FROM RECENT ISSUE LET US KNOW WHERE YOU ARE GOING move please let us know advancesix weeks required change address Attach current MA mailing label check appropriate box mall Subscrip tion Dept Model Aviation 1810 Samuel Morse Dr Reston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION C CHANGE OF ADDRESS Non-AMA subscription rates $1800 12 months US possessions elsewhere tinciuding Canada Mexico $2400 US Schools $900 US Libraries $1350 NAME ADDRESS CITY/STATE _______________________________________________ ZIP ________________ MODEL AVIATION 1810 SAMUEL MORSE DR RESTON VA 22090 Great Lakes Model Company 5173626078 PO Dcx 308 Tawu5 CityIALL MAJOR COMPONENTS Ml 487631MOLDED URETHANE FOAM LEOS LASER * World Aerobatic Champion Top Quality Epoxy Gloss Fuse loge Cowl & Wheel Punts inum Landing Gear loan Wingto Span Wing Area 1440 sq inches Complete Step hy Step InAll Balsa Finish Kit structions Pictures Weight 16-20 Iho Engine 2-4 HP 95 99 PLUS $1* SHIPPING Direct Sales Only JR3 STICK Ideal Trainer An Outstanding Balsa & Fun Cit 72 Wing Span Wint Area-lOSt sq 12 Hour Assembly Time weighs 0 12 lbs 5nginn Sine 75 13 95 $7 9 PLUS SHIPPING Direct Sales Only COMING SOON Cap2O&Cap2l 60- 12 engines ~ j4Manufacturers Quality Kits Large Scale Engines out tube cut through wis half double-edge razor blade round piece foam should just fall out Use templates draw parts out line balsa plywood sheets cut out Drill holes need drilled time first parts glued together stabilator mount tail boom Use CyA aliphatic resin glue like use slowcure epoxy over entire unit fuel proofing added strength epoxy tail boom will fit onto wing Cut 1-in-dia rocket tube Estes BT5O length 5 tubes come 18-in lengths Coat inside tube slow-cure epoxy fiberglass resin polyurethane varnish let dry like let parts dry overnight first rocket tubes dry roll up some fine sandpaper sand inside no sharp edges very important sharp edges bumps will cause bladder tank ruptures Cut two round balsa plugs ends rocket tube Use 5-mm epoxy glue place making sure inside surfaces plugs also have coat epoxy Check fit tube wing Sand outside tube glue will adhere well coat thin coat aliphatic resin glue slide its hole outboard wing Make sure doesnt extend beyond edge wing Cut belicrank mount slot center rib drill two 2-in holes slot ends belicrank mount comes through inboard side model ing knife cut out slot As can see plans bellcrank mount has taper does slot can use small file get taper center rib Check fit often bellcrank mount taper put bellcrank mount cannot pull out rib Glue bellcrank mount slot aliphatic resin Now glue two maple engine mounts center rib aliphatic resin After dry glue 2 plywood engine mount doubler place again aliphatic resin rectangular hole must cut doubler front spar First drill hole through area carve out modeling knife everything dry cut mounts down shape shown plans Moto Shop Sand down doubler rear tapers flush rib Center punch location engine bolt holes drill out Put some CyA glue down hole making sure soaks wood Redrill holes prevents holes getting fuel soaked Drill holes dowels location shown plans glue dowels place aliphatic resin Attach 018 stranded lead-out cables /2A bellcrank C Goldberg #263 Sig #SH 234 Before sand over lead-out holes bellcrank take off sharp edges may cut lead-outs pushrod hole bellcrank will have drilled accept threaded pushrod leave 1 /2 2-in loops lead-outs bellcrank 3A2-in brass copper attachment tubes flatten lock lead-out cable placing vise hitting hammer have crimping tool can use Bend cut pushrod exact shape shown plans Slip pushrod bellcrank bolt assembly bellcrank mount use wood screw comes bellcrank set replaced bolt nut Add drop oil bellcrank bushing smooth operation Cut excess bellcrank bolt tapered groove has cut wings leading edge accommodate tapered front spar mark area felt-tip pen cut some material out modeling knife can sanded perfect fit can glue some sand paper edge scrap sq spar make exact sanding tool oper ation Fit front spar center rib assembly test fit outboard wing off work until fit perfect Some inboard wing has cut out lead-out slot bellcrank will fit binding Try cut out too much foam can create weak spot Mark location pushrod will pass out wing melt out slot hot wire Again make slot too big Continued page 156 154 Model Aviation 0 NEW BUSY PEOPLE KITS CITABRIA STINSON L5 9 CESSNAZLIN 50L 56 INCH ALL BALSA DELUXE PRE-FAB PROFILE FLYING MODELS $695 RUBBER POWER LOG $150 -MA LA MESA CA 92041 Power Soar New Heights C LT-50 Electric Motor 01 Cu equivelent gas engine displacement Send self-addressed stamped envelope catalog ap plication notes Leisure 11 Deerspring/Irvine/CA 92714 THIS FUEL FEATURES ORUST PREVENTION AGENTS ODETERGENTS OLUBRICAllON WITH HIGH FLASH POINTS WEmNG AGENTS FOR MORE EFFICIENT AND DEPENDABLE FUEL FLOW OANTI-FOAMING AGENTS TO PREVENT LEAN RUNS KEEPS YOUR ENGINE RUNNING COOL OAN ODORLESS HIGHLY REFINED FUEL OCHILDPROOF LIDS Available FAd 5 10 15 25 & 40% Nifro-Methane Contents Formulated synthetic lubricants Also available castor DEALERS WANlED DOMESTIC & OVERSEAS WE EXPORT competitrn fuel fast becoming ThE CHOICE tap profesionols tirot cash product Contact us price structureS ordering information Manufncturers Major Brand Distributors Model Engines Kits Radios Accessories SUPER K Fuels brand KINGS RADIO CONTROL HOBBIES INTERNATiONAl 3960 West 16 Ave Hialech Florida 33012 305 557-2024 inboard wing must made fit per fectly bellcrank area also en gine mount doubler latter easy sanding block sliver foam has removed now ready glue wing center rib 5-mm epoxy critical steps careful inboard half first Spread some epoxy contact surface areas wing panel careful get epoxy lead-outs bellcrank pushrod spar notches front spar groove can use front spar scrap /x sq wing spar material help locate wing correct position press wing center rib line up trailing edge center rib use masking tape temporarily hold place Hold inboard wing center rib until glue hardens Pull out front spar scrap wing spars stray globs epoxy wont glue place outboard wing panel lot easier Mix enough epoxy coat outboard side center rib front spar grooves Slip front spar through engine mount doubler its groove inboard half Put scrap wing spars place extend about 2 outboard wing side will serve guides Press outboard wing onto center rib Line up outboard trailing edge inboard wing trailing edge Use masking tape hold place keep front spar place Hold wing until epoxy hard ens Find two wing panel cradles exact size having matching cut-out lines will used hold wing panels perfect alignment spars drying Spread some aliphatic resin glue along spar groove top Slip top spar place Put wing cradles spar facing up Make sure wing panel cradles perfectly flat surface Put some weights spar hold place drying thoroughly dry same bottom spar Sand spar ends flush wing tips Press A2-in lead-out eyelets place inboard wing tip CyA-glue place Use filler micro-balloons baking soda around eyelets come through wing tip Make sure cross lead-outs feed through eyelets can use 5-mm epoxy contact cement foam glue A2 plywood wing tips foam make lead-outs same length about 2/2 extending beyond wing tip Pull lead-out far can bend 2/2 models chances wont have adjust handle model another use metal eyelets lineparts packages lead-out ends along -in lengths brass copper tachment tubes can flatten crimp same way did bellcrank Golden nel RadiO Control TI4 34 Chafl Kit #107 $3995 099 15 EngInes 46 Wingspoa Dealer ributor inquiriesPlease send 500 Phone 17031 273t593for Flyline Catalog Flyline Models Inc PO Bee 2136 FairIes Virginia 22031 USA PRODUCTS FAAMODELER Complete Line Exhaust Systems * Tuned Muffled Tuned Pipes Headers uri Mufflers Expansion Mufflers copter Ball Mufflers ialized Exhaust Systems Unsurpassed WorkmanshD & Performance Ikon NWST PO Box 566 Auburn WA 98071 206 941-8248 156 Model Aviation SlySir/von Lopez Continued aoe 154 specially formulated chemically balanced fuel top pellormance minimum engine wear weather condition CORBEN SUPER ACE 4 CYCLE POWERED 80 WINGSPAN SEND $100 FOR COMPLETE CATALOG OF FINE KITS THE MEN TRAINER Discover what thousands MEN TRAINER pilots have learnedthere jean easy way learn fly A/C Fly trainer specifically designed absolute beginner A/C Years design engineering flight testing updating have given plane its unique flight characteristics Make introduction A/C flying enjoyable experience MEN TRAINERs ultra stability slow flight characteristics will allow hands-off recovery control errors large size gives maximum visibility easy altitude recognition during learning process FEATURES Under-cambered wing ample dihedral slow 5 30 MPH stable flight 3 lb flying weight average radio installed Large roomy fuselage ease radio installationSturdy plywood-spruce-balsa construction withstand beginners abuse learning landEasy follow plans inatructionpre-formed landing gear braceTHRU-CUT die cutting combined TRI SQUARE-LOC construction fast easy assembly Complete hardware packageMonokote cutting guide Building time 12 25 hours THE TWIN TRAINER youve always wanted fly twin have put off cost problems hazards MEN has airplane youve wating fort MEN TWIN TRAINER Weve taken ultra stable MEN TRAINER has introduced thousands modelers pleasures RIC modeling converted simple twin design can flown trimotort new MEN TWIN TRAINER available two ways complete kit already own MEN TRAINERS ass simple building wing kit nose conversion requires no further modification airplane Just switch wings youre off Model Engineering Norwalk% THRU CUT die cutting combined TRI-SQUARE-LOC construc tion plywood betas spruce make construction fast simple MEN TWIN TRAINER can flown two 09 15 engines three channel radio easy-flying twinengine fun MEN TWIN TRAINER cant beat side Use razor blade metal yardstick trim excess foam trailing edge Make 3/s-in-dia bladder tube access hole drain vent hole Check plans exact location Sand entire wing smooth dont round thin trailing edge trailing edge should square sharp possible Coat engine mount area about 1-in foam area slow-cure epoxy Put some epoxy around bladder tube access drain vent holes fill gaps holes around front spar going decorate model now time use different product organization stickers should put AMA number model usually put name mod els also have found pre-mixed tempera paint posters works well foam heavy dont use too much simple stripe two outboard wing tip weight will give model enough color distinguished judges air Having worked AMA Nationals judge know color model helps accurate scoring have found Fas Cal very strong covering material structure Cover wing sheet Fas Cal top bottom Use sealing iron adhere shrink covering Ex periment scraps foam Fas Cal get right heat setting iron iron sets about 45% maximum heat Heat guns get too hot will melt foam THE MEN TRAINER extra strength can add 4-in-wide double layer Fas Cal center section model Sand Fas Cal just bit tail boom will located Use 5-mm epoxy glue place Sand stabilator airfoil shape Add nylon hinge material area control horn will lo cated use CyA glue Cover stab Fas Cal add double layer leading edge will sewn mount Using 36 45-lb-test braided nylon fishing line sew stabilator will need some large-eye sewing needles task sizes 18 22 tie knot 36-in length fishing line melt end over flame knot wont unravel line should go through hole twice Dont tighten up line until stabilator lined up trailing edge wing Tighten line check alignment again perfect put drop CyA glue hole Trim off excess line Locate control horn screw place just push pin through stabila tor wood screw will go serve pilot hole Hook up mini snap clevis adjust pushrod equal travel up down Use top hole control horn Epoxy penny outboard wing tip between spars Coat wing tips clear polyurethane varnish Also coat edges Fas Cal completely fuelproof structure Bolt Tee Dee 049 05 1 will ready fly /2A combat flown 012 lines 35-ft length Use inside holes small Sullivan Pylon Brand handle 11-2 Cox Tee Dee 049s like good bit nitromethane fuel run about 25% Bladders made 3/16-in latex tubing having /32-in wall have found very small black neoprene tubing works real well fuel line recotumend use small Hi Johnson fuel filter fill bladders will need disposable plastic syringe Make adapter medium fuel tubing 2-in length 3A2-in brass copper tubing end syringe will fit small neoprene fuel line adapter should securely fastened syringe copper wire Check warps before make first flight notice warps after first flight iron out Make adjustments pushrod control horn until get desired turning radius Practice can until know exactly what model capable doing Practice Combat flying will ready serious com petition Good luck can buy SlySir wing cores Phil Cartier/Core House Box 300A RD #2 Palmyra PA 17078 Write prices SAFE FLYING IS NO ACCIDENT March 1984 157 THE TWIN TRAINER
Edition: Model Aviation - 1984/03
Page Numbers: 62, 63, 64, 153, 154, 156, 157
Build model time author says assure yourself always having practice models Shown four six SlySirs built session Foam-winged Combat models arent easier build open framework versions have other advantages THIS IS THE BEST around /2A Combat model has designed date opinion wooden Combat models will fly just well far crash resistance goes foam has over balsa models Thats quite statement believe true have flying Combat since 1965 have designed three Combat mod els have published produced kit can see have fair amount experience Steve Hills designer SlySir has flying since 1955 has also designed several Combat models though first design published great Combat pilots Southern California have long recognized soundness Steves foam designs have used year after year What makes design superior others Its strength light weight answers models come between 5 5 oz 180 sq wing area design features tapering trailing edges airfoil section reduce weight wing tips foam wings cored-out except lead-out slot inboard wing l-in-dia hole bladder tank tube outboard wing rocket tube glued place actually acts spar strengthen center model Foam gets its strength its lightweight solid mass coring-out wing will greatly reduce its strength advantage An other advantage foam wing over balsa structure no open bays can distort covering flexes foam airfoil will remain constant 8-in tapering front spar helps hold center section together absorbs vibration engine cover models Left particular model No 9 first Fresno CA meet October 23 1983 Outboard wing stripes done tempera waterbased paintto serve both decoration tip weight Right Designer Steve Hills holds SlySir No 6 against Pacific Ocean background beach flying site Playa del Rey Steve developed design help promote AA Combat encourage limited budgets A9 Mrv-iI Aviation Left Aircraft-type locknuts 3-48 screws good assurance keeping engine tightly filter fuel line feeds engine clean mix Right Recommended engine Cox Tee Dee 049/051here disassembled cleaning fitting Author uses WD-40 Simichrome Fas Cal Mylar material sticky adhe sive side covering gives model much its overall strength use 36 45-lb-test braided nylon fishing line hinges stabilator provides strength flexibility crash resistance would say Cox Tee Dee 049 051 finest Combat engine ever made care taken set up break can get hours hours reliable service find out set up engine read Combat column December 1981 issue Flying Models met Steve Hills Lincoln NE AMA Nats 1979 As turned out live fairly close another Southern Cali fornia have doing lots flying building together since time Steve built eight models set building sessions have since built ad ditional six models waiting foam designs really refined before making switch balsa am now convinced foam way go going fly Combat however think will save time building foam instead balsa crash damage far less foamand repairs quicker eas ier models built correctly will bounce impact ground time Make sure have materials tools adhesives before start project will need following adhe sives 5-mm epoxy slow-cure epoxy ali phatic resin glue cyanoacrylate CyA glue could use some contact cement absolutely necessary will need tools modeling knife doubleedge razor blades razor saw wire cutters hammer vise propane torch longnose pli ers center punch paint brushes various small files hand power drill set drill bits Dremel Moto Shop access lots sandpaper various grits apparatus cutting foam wings book published RC Modeler magazine foam wings can great help can Paul Smiths Dragon article February issue Model Aviation have other articles published subject cutting foam wings will just have go through back issues modeling magazines order thoroughly familiar different setups Decide models want build gather materials buy balsa sheets will have buy 36-in lengths lot need model Make sure check wood densities called plans before buy wood can tremendous weight difference sheet balsa another use wrong weight wood will end up shifting balance point CG Try get friends build some models way can share work expense Make shopping list materials Nothing frustrating get project partly finished find short item hobby shop closed course Start making templates like use /6 plywood easy work templates include two cutting wing panels two cutting spar notches center rib tail boom stabilator mount bellcrank mount stabilator optional may made thin cardboard favorite method making templates use car bon paper typing paper under plans trace over part need plans cut out glue onto 1/6 plywood cut out jigsaw dont want trace over plans simply make photocopies parts need plans Sand file templates exact shape shown plans Remember final product will good templates Read can about cutting foam Once practice little will find isnt very difficult successfully will need cut foam blocks 15 long 8 wide end Left Stabilators sanded airfoil shape covered Fas Cal strength Note holes drilled center rib prior wing assembly Right Its important test-fit wing panels center rib before gluing Ply doubler sanded feather rib March 1984 63 FULL-SIZE PLANS AVAILABLE . SEE PAGE 170 1/32 PLYWOOD DOUBLER __ USE COO 5-3 PROPS I/B DOWELS COO TEE DEE 049 OR 051 TrP /4DRAIN VENT SPRUCE SPAR-IDLEI/R BALSA PLUS 3 V DIAMETER ROCKET TUBE ACCESS HOLE TOP VIEW 3/3D PLY BELLCRANK MOUNT 015 LESS-OUT EYELETS IDA I/3D ID DIR CABLE LEAD OUTSEDIT I-IDLE NOTE WING SPAN 30-7/IS LENUTH 13-I/O AREA NT SO IN CENTER-,2I 27szzsaTIP- CARL DOLOBERS THREADED PUOBROD THREADED NYLON CLEVIS I/B BALSA STABILATOR LISHY-WEISHY 3/B BALSA CENTER RIB MEDIUM WEISHT FOAM WINS 1/2 BALSA BOOM MEDIUM-WEISHY 3/3D PLYWOOD SUPPORT 36 TO 45 POUND TEST BRAIDED NYLON FISHINS LINE FOAM WIND CUTTINS_TEMPLATES DOUBLER TEMPLATE 3/B SO MAPLE ENSINE MOUNTS / SIDE VIEW BALANCE POINT SMALL HORN OW BALSA 3/3D PLY I/3D PLY 0 D2456 TEMPLATE ALIONMENT HOLES CENTER BELLCRANK MOUNT TEMPLATE SPAR NOTCH AND LEAD-OUT CHANNEL TEMPLATEU 3/3D PLY TIP SUPPORT TEMPLATE 3/3D PLYWOOD SLY SIR 1/2 FOAM WING COMBAT 1983 I/2A COMBAT NATIONAL CHAMPION PILOT PETE ATHANS DESIGNED BY STEVE HILLS DRAWN BY RICH VON LOPEZ TRACING BY JOE DEMARCO 6 wide other 1 /2 thick draw centerline ends foam block before templates put place clamp felt-tip pen vise height 3/4 draw ends blocks past pen way centerlines will exactly same order hollow out lead-out slot inboard wing have poke hole through wing cutting wire can passed through made jig holds piece 078 music wire follows will need piece 2 X 4 lumber 6 long Drill hole through 4-in width 2-in side exactly 3/4 edge hole needs very straight accurate have drill press use Cut 4-in section half have 2 x 2 x 6-inch pieces can nailed door heights 20 25 holes should 3/4 door Make sure holes two blocks line verti cally 078 music wire should now able travel up down straight line inboard foam wing panel block held below wire lower end wire heated propane torchThe wire can dropped through foam block melting straight hole its way Line up centerline wing tem plates centerline foam blocks hold place 2-in finishing nails wing templates have long thin extension trailing edge assist cutting operation cutting wire always comes out first wing tip side ex tension guides hot wire level other side wire finishes its cut keeps airfoil constant throughout cut Wing cutting best done two peo ple side cutting bow Start cuts leading edge wing travel slowly evenly over templates toward trailing edge Flip block over bottom half wing same way will notice have extra foam material trailing edge leave until later will protect trailing edge dents han dling Continued page 153 64 Model Aviation I/3D PLY WINS TIP I/B SQUARE SPRUCE SPARS CARL BOLOBERS 1/DA BELLCRANK I/3D PLY WINS TIP Y /wG TIP Left Pete Athans won 1AA Combat unofficial event 1983 AMA Nationals Pete ran out models borrowed authors SlySir final winning match Right Some 31 fliers entered AA Combat Nats unofficial event sponsored Cox Hobbiesl other records FAI files indicate Soviet minds tend seek exploit loopholes rules could expand previous sentence article would appropriately published some Journal Social Psy chology will limit myself express ing hope political officials will leave no loopholes rules now trying write about competitions involving nuclear weapons did record hard way proud have put together real good 4th July picnic food terrible dried-out ham cheese sandwich aerial fireworks spectacular Approxi mately million eight hundred sixtysix thousand consecutive explosions pro duced truly revolutionary celebration SlySir/von Lopez Continued oaue 64 Cut wings stage before start cutting spar notches use same cutting bow spar notches Pull out wing templates plug spar-notch templates will able use same nail holes both templates drilled same spots cut down front across bottom up back Dont spend too much time spot hot wire will melt foam intend Practice some scrap pieces foam Its really easy once get feel After have done first wing panel check grooves spruce spars dont fit perfectly make some adjustments templates try again Leave templates place inboard wing panel cutting wire can now passed through hole made 078 music wire tape end cutting wire piece music wire simply push through hole end cutting wire held surgical forceps Alligator clips electrical power source hooked up between forceps wing cutting wire go around lead-out slot twice stop center slot letting cutting wire cool cutting wire pulled out pull out center rib side rather wing tip side will also pull out foam material has cut out Any remaining foam can poked out wing spar hole bladder tank tube must cut 1-in-dia aluminum tube has sharpened Dremel tool will well found shower curtain rod hardware store exact size Just push turn tube wing will cut foam easily Mark aluminum tube 5 masking tape wont cut too far wing Sometimes round foam plug will come 3-FUNCTION ACCUTACH ITM O LCD Tachometer w/dual scale capability lox bOX @ Digital Voltmeter load /5 && checking/cycling TX/AX battery combosACC&I-tACl7 tor quick 1charging operationa 095 7 prepaid Noror Calqz~ Calif add 6% tax INC94086 wj5NLINE METAL SPECIALISTS COMPLETE THIS FORM AND AlTACH MAILING LABEL FROM RECENT ISSUE LET US KNOW WHERE YOU ARE GOING move please let us know advancesix weeks required change address Attach current MA mailing label check appropriate box mall Subscrip tion Dept Model Aviation 1810 Samuel Morse Dr Reston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION C CHANGE OF ADDRESS Non-AMA subscription rates $1800 12 months US possessions elsewhere tinciuding Canada Mexico $2400 US Schools $900 US Libraries $1350 NAME ADDRESS CITY/STATE _______________________________________________ ZIP ________________ MODEL AVIATION 1810 SAMUEL MORSE DR RESTON VA 22090 Great Lakes Model Company 5173626078 PO Dcx 308 Tawu5 CityIALL MAJOR COMPONENTS Ml 487631MOLDED URETHANE FOAM LEOS LASER * World Aerobatic Champion Top Quality Epoxy Gloss Fuse loge Cowl & Wheel Punts inum Landing Gear loan Wingto Span Wing Area 1440 sq inches Complete Step hy Step InAll Balsa Finish Kit structions Pictures Weight 16-20 Iho Engine 2-4 HP 95 99 PLUS $1* SHIPPING Direct Sales Only JR3 STICK Ideal Trainer An Outstanding Balsa & Fun Cit 72 Wing Span Wint Area-lOSt sq 12 Hour Assembly Time weighs 0 12 lbs 5nginn Sine 75 13 95 $7 9 PLUS SHIPPING Direct Sales Only COMING SOON Cap2O&Cap2l 60- 12 engines ~ j4Manufacturers Quality Kits Large Scale Engines out tube cut through wis half double-edge razor blade round piece foam should just fall out Use templates draw parts out line balsa plywood sheets cut out Drill holes need drilled time first parts glued together stabilator mount tail boom Use CyA aliphatic resin glue like use slowcure epoxy over entire unit fuel proofing added strength epoxy tail boom will fit onto wing Cut 1-in-dia rocket tube Estes BT5O length 5 tubes come 18-in lengths Coat inside tube slow-cure epoxy fiberglass resin polyurethane varnish let dry like let parts dry overnight first rocket tubes dry roll up some fine sandpaper sand inside no sharp edges very important sharp edges bumps will cause bladder tank ruptures Cut two round balsa plugs ends rocket tube Use 5-mm epoxy glue place making sure inside surfaces plugs also have coat epoxy Check fit tube wing Sand outside tube glue will adhere well coat thin coat aliphatic resin glue slide its hole outboard wing Make sure doesnt extend beyond edge wing Cut belicrank mount slot center rib drill two 2-in holes slot ends belicrank mount comes through inboard side model ing knife cut out slot As can see plans bellcrank mount has taper does slot can use small file get taper center rib Check fit often bellcrank mount taper put bellcrank mount cannot pull out rib Glue bellcrank mount slot aliphatic resin Now glue two maple engine mounts center rib aliphatic resin After dry glue 2 plywood engine mount doubler place again aliphatic resin rectangular hole must cut doubler front spar First drill hole through area carve out modeling knife everything dry cut mounts down shape shown plans Moto Shop Sand down doubler rear tapers flush rib Center punch location engine bolt holes drill out Put some CyA glue down hole making sure soaks wood Redrill holes prevents holes getting fuel soaked Drill holes dowels location shown plans glue dowels place aliphatic resin Attach 018 stranded lead-out cables /2A bellcrank C Goldberg #263 Sig #SH 234 Before sand over lead-out holes bellcrank take off sharp edges may cut lead-outs pushrod hole bellcrank will have drilled accept threaded pushrod leave 1 /2 2-in loops lead-outs bellcrank 3A2-in brass copper attachment tubes flatten lock lead-out cable placing vise hitting hammer have crimping tool can use Bend cut pushrod exact shape shown plans Slip pushrod bellcrank bolt assembly bellcrank mount use wood screw comes bellcrank set replaced bolt nut Add drop oil bellcrank bushing smooth operation Cut excess bellcrank bolt tapered groove has cut wings leading edge accommodate tapered front spar mark area felt-tip pen cut some material out modeling knife can sanded perfect fit can glue some sand paper edge scrap sq spar make exact sanding tool oper ation Fit front spar center rib assembly test fit outboard wing off work until fit perfect Some inboard wing has cut out lead-out slot bellcrank will fit binding Try cut out too much foam can create weak spot Mark location pushrod will pass out wing melt out slot hot wire Again make slot too big Continued page 156 154 Model Aviation 0 NEW BUSY PEOPLE KITS CITABRIA STINSON L5 9 CESSNAZLIN 50L 56 INCH ALL BALSA DELUXE PRE-FAB PROFILE FLYING MODELS $695 RUBBER POWER LOG $150 -MA LA MESA CA 92041 Power Soar New Heights C LT-50 Electric Motor 01 Cu equivelent gas engine displacement Send self-addressed stamped envelope catalog ap plication notes Leisure 11 Deerspring/Irvine/CA 92714 THIS FUEL FEATURES ORUST PREVENTION AGENTS ODETERGENTS OLUBRICAllON WITH HIGH FLASH POINTS WEmNG AGENTS FOR MORE EFFICIENT AND DEPENDABLE FUEL FLOW OANTI-FOAMING AGENTS TO PREVENT LEAN RUNS KEEPS YOUR ENGINE RUNNING COOL OAN ODORLESS HIGHLY REFINED FUEL OCHILDPROOF LIDS Available FAd 5 10 15 25 & 40% Nifro-Methane Contents Formulated synthetic lubricants Also available castor DEALERS WANlED DOMESTIC & OVERSEAS WE EXPORT competitrn fuel fast becoming ThE CHOICE tap profesionols tirot cash product Contact us price structureS ordering information Manufncturers Major Brand Distributors Model Engines Kits Radios Accessories SUPER K Fuels brand KINGS RADIO CONTROL HOBBIES INTERNATiONAl 3960 West 16 Ave Hialech Florida 33012 305 557-2024 inboard wing must made fit per fectly bellcrank area also en gine mount doubler latter easy sanding block sliver foam has removed now ready glue wing center rib 5-mm epoxy critical steps careful inboard half first Spread some epoxy contact surface areas wing panel careful get epoxy lead-outs bellcrank pushrod spar notches front spar groove can use front spar scrap /x sq wing spar material help locate wing correct position press wing center rib line up trailing edge center rib use masking tape temporarily hold place Hold inboard wing center rib until glue hardens Pull out front spar scrap wing spars stray globs epoxy wont glue place outboard wing panel lot easier Mix enough epoxy coat outboard side center rib front spar grooves Slip front spar through engine mount doubler its groove inboard half Put scrap wing spars place extend about 2 outboard wing side will serve guides Press outboard wing onto center rib Line up outboard trailing edge inboard wing trailing edge Use masking tape hold place keep front spar place Hold wing until epoxy hard ens Find two wing panel cradles exact size having matching cut-out lines will used hold wing panels perfect alignment spars drying Spread some aliphatic resin glue along spar groove top Slip top spar place Put wing cradles spar facing up Make sure wing panel cradles perfectly flat surface Put some weights spar hold place drying thoroughly dry same bottom spar Sand spar ends flush wing tips Press A2-in lead-out eyelets place inboard wing tip CyA-glue place Use filler micro-balloons baking soda around eyelets come through wing tip Make sure cross lead-outs feed through eyelets can use 5-mm epoxy contact cement foam glue A2 plywood wing tips foam make lead-outs same length about 2/2 extending beyond wing tip Pull lead-out far can bend 2/2 models chances wont have adjust handle model another use metal eyelets lineparts packages lead-out ends along -in lengths brass copper tachment tubes can flatten crimp same way did bellcrank Golden nel RadiO Control TI4 34 Chafl Kit #107 $3995 099 15 EngInes 46 Wingspoa Dealer ributor inquiriesPlease send 500 Phone 17031 273t593for Flyline Catalog Flyline Models Inc PO Bee 2136 FairIes Virginia 22031 USA PRODUCTS FAAMODELER Complete Line Exhaust Systems * Tuned Muffled Tuned Pipes Headers uri Mufflers Expansion Mufflers copter Ball Mufflers ialized Exhaust Systems Unsurpassed WorkmanshD & Performance Ikon NWST PO Box 566 Auburn WA 98071 206 941-8248 156 Model Aviation SlySir/von Lopez Continued aoe 154 specially formulated chemically balanced fuel top pellormance minimum engine wear weather condition CORBEN SUPER ACE 4 CYCLE POWERED 80 WINGSPAN SEND $100 FOR COMPLETE CATALOG OF FINE KITS THE MEN TRAINER Discover what thousands MEN TRAINER pilots have learnedthere jean easy way learn fly A/C Fly trainer specifically designed absolute beginner A/C Years design engineering flight testing updating have given plane its unique flight characteristics Make introduction A/C flying enjoyable experience MEN TRAINERs ultra stability slow flight characteristics will allow hands-off recovery control errors large size gives maximum visibility easy altitude recognition during learning process FEATURES Under-cambered wing ample dihedral slow 5 30 MPH stable flight 3 lb flying weight average radio installed Large roomy fuselage ease radio installationSturdy plywood-spruce-balsa construction withstand beginners abuse learning landEasy follow plans inatructionpre-formed landing gear braceTHRU-CUT die cutting combined TRI SQUARE-LOC construction fast easy assembly Complete hardware packageMonokote cutting guide Building time 12 25 hours THE TWIN TRAINER youve always wanted fly twin have put off cost problems hazards MEN has airplane youve wating fort MEN TWIN TRAINER Weve taken ultra stable MEN TRAINER has introduced thousands modelers pleasures RIC modeling converted simple twin design can flown trimotort new MEN TWIN TRAINER available two ways complete kit already own MEN TRAINERS ass simple building wing kit nose conversion requires no further modification airplane Just switch wings youre off Model Engineering Norwalk% THRU CUT die cutting combined TRI-SQUARE-LOC construc tion plywood betas spruce make construction fast simple MEN TWIN TRAINER can flown two 09 15 engines three channel radio easy-flying twinengine fun MEN TWIN TRAINER cant beat side Use razor blade metal yardstick trim excess foam trailing edge Make 3/s-in-dia bladder tube access hole drain vent hole Check plans exact location Sand entire wing smooth dont round thin trailing edge trailing edge should square sharp possible Coat engine mount area about 1-in foam area slow-cure epoxy Put some epoxy around bladder tube access drain vent holes fill gaps holes around front spar going decorate model now time use different product organization stickers should put AMA number model usually put name mod els also have found pre-mixed tempera paint posters works well foam heavy dont use too much simple stripe two outboard wing tip weight will give model enough color distinguished judges air Having worked AMA Nationals judge know color model helps accurate scoring have found Fas Cal very strong covering material structure Cover wing sheet Fas Cal top bottom Use sealing iron adhere shrink covering Ex periment scraps foam Fas Cal get right heat setting iron iron sets about 45% maximum heat Heat guns get too hot will melt foam THE MEN TRAINER extra strength can add 4-in-wide double layer Fas Cal center section model Sand Fas Cal just bit tail boom will located Use 5-mm epoxy glue place Sand stabilator airfoil shape Add nylon hinge material area control horn will lo cated use CyA glue Cover stab Fas Cal add double layer leading edge will sewn mount Using 36 45-lb-test braided nylon fishing line sew stabilator will need some large-eye sewing needles task sizes 18 22 tie knot 36-in length fishing line melt end over flame knot wont unravel line should go through hole twice Dont tighten up line until stabilator lined up trailing edge wing Tighten line check alignment again perfect put drop CyA glue hole Trim off excess line Locate control horn screw place just push pin through stabila tor wood screw will go serve pilot hole Hook up mini snap clevis adjust pushrod equal travel up down Use top hole control horn Epoxy penny outboard wing tip between spars Coat wing tips clear polyurethane varnish Also coat edges Fas Cal completely fuelproof structure Bolt Tee Dee 049 05 1 will ready fly /2A combat flown 012 lines 35-ft length Use inside holes small Sullivan Pylon Brand handle 11-2 Cox Tee Dee 049s like good bit nitromethane fuel run about 25% Bladders made 3/16-in latex tubing having /32-in wall have found very small black neoprene tubing works real well fuel line recotumend use small Hi Johnson fuel filter fill bladders will need disposable plastic syringe Make adapter medium fuel tubing 2-in length 3A2-in brass copper tubing end syringe will fit small neoprene fuel line adapter should securely fastened syringe copper wire Check warps before make first flight notice warps after first flight iron out Make adjustments pushrod control horn until get desired turning radius Practice can until know exactly what model capable doing Practice Combat flying will ready serious com petition Good luck can buy SlySir wing cores Phil Cartier/Core House Box 300A RD #2 Palmyra PA 17078 Write prices SAFE FLYING IS NO ACCIDENT March 1984 157 THE TWIN TRAINER
Edition: Model Aviation - 1984/03
Page Numbers: 62, 63, 64, 153, 154, 156, 157
Build model time author says assure yourself always having practice models Shown four six SlySirs built session Foam-winged Combat models arent easier build open framework versions have other advantages THIS IS THE BEST around /2A Combat model has designed date opinion wooden Combat models will fly just well far crash resistance goes foam has over balsa models Thats quite statement believe true have flying Combat since 1965 have designed three Combat mod els have published produced kit can see have fair amount experience Steve Hills designer SlySir has flying since 1955 has also designed several Combat models though first design published great Combat pilots Southern California have long recognized soundness Steves foam designs have used year after year What makes design superior others Its strength light weight answers models come between 5 5 oz 180 sq wing area design features tapering trailing edges airfoil section reduce weight wing tips foam wings cored-out except lead-out slot inboard wing l-in-dia hole bladder tank tube outboard wing rocket tube glued place actually acts spar strengthen center model Foam gets its strength its lightweight solid mass coring-out wing will greatly reduce its strength advantage An other advantage foam wing over balsa structure no open bays can distort covering flexes foam airfoil will remain constant 8-in tapering front spar helps hold center section together absorbs vibration engine cover models Left particular model No 9 first Fresno CA meet October 23 1983 Outboard wing stripes done tempera waterbased paintto serve both decoration tip weight Right Designer Steve Hills holds SlySir No 6 against Pacific Ocean background beach flying site Playa del Rey Steve developed design help promote AA Combat encourage limited budgets A9 Mrv-iI Aviation Left Aircraft-type locknuts 3-48 screws good assurance keeping engine tightly filter fuel line feeds engine clean mix Right Recommended engine Cox Tee Dee 049/051here disassembled cleaning fitting Author uses WD-40 Simichrome Fas Cal Mylar material sticky adhe sive side covering gives model much its overall strength use 36 45-lb-test braided nylon fishing line hinges stabilator provides strength flexibility crash resistance would say Cox Tee Dee 049 051 finest Combat engine ever made care taken set up break can get hours hours reliable service find out set up engine read Combat column December 1981 issue Flying Models met Steve Hills Lincoln NE AMA Nats 1979 As turned out live fairly close another Southern Cali fornia have doing lots flying building together since time Steve built eight models set building sessions have since built ad ditional six models waiting foam designs really refined before making switch balsa am now convinced foam way go going fly Combat however think will save time building foam instead balsa crash damage far less foamand repairs quicker eas ier models built correctly will bounce impact ground time Make sure have materials tools adhesives before start project will need following adhe sives 5-mm epoxy slow-cure epoxy ali phatic resin glue cyanoacrylate CyA glue could use some contact cement absolutely necessary will need tools modeling knife doubleedge razor blades razor saw wire cutters hammer vise propane torch longnose pli ers center punch paint brushes various small files hand power drill set drill bits Dremel Moto Shop access lots sandpaper various grits apparatus cutting foam wings book published RC Modeler magazine foam wings can great help can Paul Smiths Dragon article February issue Model Aviation have other articles published subject cutting foam wings will just have go through back issues modeling magazines order thoroughly familiar different setups Decide models want build gather materials buy balsa sheets will have buy 36-in lengths lot need model Make sure check wood densities called plans before buy wood can tremendous weight difference sheet balsa another use wrong weight wood will end up shifting balance point CG Try get friends build some models way can share work expense Make shopping list materials Nothing frustrating get project partly finished find short item hobby shop closed course Start making templates like use /6 plywood easy work templates include two cutting wing panels two cutting spar notches center rib tail boom stabilator mount bellcrank mount stabilator optional may made thin cardboard favorite method making templates use car bon paper typing paper under plans trace over part need plans cut out glue onto 1/6 plywood cut out jigsaw dont want trace over plans simply make photocopies parts need plans Sand file templates exact shape shown plans Remember final product will good templates Read can about cutting foam Once practice little will find isnt very difficult successfully will need cut foam blocks 15 long 8 wide end Left Stabilators sanded airfoil shape covered Fas Cal strength Note holes drilled center rib prior wing assembly Right Its important test-fit wing panels center rib before gluing Ply doubler sanded feather rib March 1984 63 FULL-SIZE PLANS AVAILABLE . SEE PAGE 170 1/32 PLYWOOD DOUBLER __ USE COO 5-3 PROPS I/B DOWELS COO TEE DEE 049 OR 051 TrP /4DRAIN VENT SPRUCE SPAR-IDLEI/R BALSA PLUS 3 V DIAMETER ROCKET TUBE ACCESS HOLE TOP VIEW 3/3D PLY BELLCRANK MOUNT 015 LESS-OUT EYELETS IDA I/3D ID DIR CABLE LEAD OUTSEDIT I-IDLE NOTE WING SPAN 30-7/IS LENUTH 13-I/O AREA NT SO IN CENTER-,2I 27szzsaTIP- CARL DOLOBERS THREADED PUOBROD THREADED NYLON CLEVIS I/B BALSA STABILATOR LISHY-WEISHY 3/B BALSA CENTER RIB MEDIUM WEISHT FOAM WINS 1/2 BALSA BOOM MEDIUM-WEISHY 3/3D PLYWOOD SUPPORT 36 TO 45 POUND TEST BRAIDED NYLON FISHINS LINE FOAM WIND CUTTINS_TEMPLATES DOUBLER TEMPLATE 3/B SO MAPLE ENSINE MOUNTS / SIDE VIEW BALANCE POINT SMALL HORN OW BALSA 3/3D PLY I/3D PLY 0 D2456 TEMPLATE ALIONMENT HOLES CENTER BELLCRANK MOUNT TEMPLATE SPAR NOTCH AND LEAD-OUT CHANNEL TEMPLATEU 3/3D PLY TIP SUPPORT TEMPLATE 3/3D PLYWOOD SLY SIR 1/2 FOAM WING COMBAT 1983 I/2A COMBAT NATIONAL CHAMPION PILOT PETE ATHANS DESIGNED BY STEVE HILLS DRAWN BY RICH VON LOPEZ TRACING BY JOE DEMARCO 6 wide other 1 /2 thick draw centerline ends foam block before templates put place clamp felt-tip pen vise height 3/4 draw ends blocks past pen way centerlines will exactly same order hollow out lead-out slot inboard wing have poke hole through wing cutting wire can passed through made jig holds piece 078 music wire follows will need piece 2 X 4 lumber 6 long Drill hole through 4-in width 2-in side exactly 3/4 edge hole needs very straight accurate have drill press use Cut 4-in section half have 2 x 2 x 6-inch pieces can nailed door heights 20 25 holes should 3/4 door Make sure holes two blocks line verti cally 078 music wire should now able travel up down straight line inboard foam wing panel block held below wire lower end wire heated propane torchThe wire can dropped through foam block melting straight hole its way Line up centerline wing tem plates centerline foam blocks hold place 2-in finishing nails wing templates have long thin extension trailing edge assist cutting operation cutting wire always comes out first wing tip side ex tension guides hot wire level other side wire finishes its cut keeps airfoil constant throughout cut Wing cutting best done two peo ple side cutting bow Start cuts leading edge wing travel slowly evenly over templates toward trailing edge Flip block over bottom half wing same way will notice have extra foam material trailing edge leave until later will protect trailing edge dents han dling Continued page 153 64 Model Aviation I/3D PLY WINS TIP I/B SQUARE SPRUCE SPARS CARL BOLOBERS 1/DA BELLCRANK I/3D PLY WINS TIP Y /wG TIP Left Pete Athans won 1AA Combat unofficial event 1983 AMA Nationals Pete ran out models borrowed authors SlySir final winning match Right Some 31 fliers entered AA Combat Nats unofficial event sponsored Cox Hobbiesl other records FAI files indicate Soviet minds tend seek exploit loopholes rules could expand previous sentence article would appropriately published some Journal Social Psy chology will limit myself express ing hope political officials will leave no loopholes rules now trying write about competitions involving nuclear weapons did record hard way proud have put together real good 4th July picnic food terrible dried-out ham cheese sandwich aerial fireworks spectacular Approxi mately million eight hundred sixtysix thousand consecutive explosions pro duced truly revolutionary celebration SlySir/von Lopez Continued oaue 64 Cut wings stage before start cutting spar notches use same cutting bow spar notches Pull out wing templates plug spar-notch templates will able use same nail holes both templates drilled same spots cut down front across bottom up back Dont spend too much time spot hot wire will melt foam intend Practice some scrap pieces foam Its really easy once get feel After have done first wing panel check grooves spruce spars dont fit perfectly make some adjustments templates try again Leave templates place inboard wing panel cutting wire can now passed through hole made 078 music wire tape end cutting wire piece music wire simply push through hole end cutting wire held surgical forceps Alligator clips electrical power source hooked up between forceps wing cutting wire go around lead-out slot twice stop center slot letting cutting wire cool cutting wire pulled out pull out center rib side rather wing tip side will also pull out foam material has cut out Any remaining foam can poked out wing spar hole bladder tank tube must cut 1-in-dia aluminum tube has sharpened Dremel tool will well found shower curtain rod hardware store exact size Just push turn tube wing will cut foam easily Mark aluminum tube 5 masking tape wont cut too far wing Sometimes round foam plug will come 3-FUNCTION ACCUTACH ITM O LCD Tachometer w/dual scale capability lox bOX @ Digital Voltmeter load /5 && checking/cycling TX/AX battery combosACC&I-tACl7 tor quick 1charging operationa 095 7 prepaid Noror Calqz~ Calif add 6% tax INC94086 wj5NLINE METAL SPECIALISTS COMPLETE THIS FORM AND AlTACH MAILING LABEL FROM RECENT ISSUE LET US KNOW WHERE YOU ARE GOING move please let us know advancesix weeks required change address Attach current MA mailing label check appropriate box mall Subscrip tion Dept Model Aviation 1810 Samuel Morse Dr Reston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION C CHANGE OF ADDRESS Non-AMA subscription rates $1800 12 months US possessions elsewhere tinciuding Canada Mexico $2400 US Schools $900 US Libraries $1350 NAME ADDRESS CITY/STATE _______________________________________________ ZIP ________________ MODEL AVIATION 1810 SAMUEL MORSE DR RESTON VA 22090 Great Lakes Model Company 5173626078 PO Dcx 308 Tawu5 CityIALL MAJOR COMPONENTS Ml 487631MOLDED URETHANE FOAM LEOS LASER * World Aerobatic Champion Top Quality Epoxy Gloss Fuse loge Cowl & Wheel Punts inum Landing Gear loan Wingto Span Wing Area 1440 sq inches Complete Step hy Step InAll Balsa Finish Kit structions Pictures Weight 16-20 Iho Engine 2-4 HP 95 99 PLUS $1* SHIPPING Direct Sales Only JR3 STICK Ideal Trainer An Outstanding Balsa & Fun Cit 72 Wing Span Wint Area-lOSt sq 12 Hour Assembly Time weighs 0 12 lbs 5nginn Sine 75 13 95 $7 9 PLUS SHIPPING Direct Sales Only COMING SOON Cap2O&Cap2l 60- 12 engines ~ j4Manufacturers Quality Kits Large Scale Engines out tube cut through wis half double-edge razor blade round piece foam should just fall out Use templates draw parts out line balsa plywood sheets cut out Drill holes need drilled time first parts glued together stabilator mount tail boom Use CyA aliphatic resin glue like use slowcure epoxy over entire unit fuel proofing added strength epoxy tail boom will fit onto wing Cut 1-in-dia rocket tube Estes BT5O length 5 tubes come 18-in lengths Coat inside tube slow-cure epoxy fiberglass resin polyurethane varnish let dry like let parts dry overnight first rocket tubes dry roll up some fine sandpaper sand inside no sharp edges very important sharp edges bumps will cause bladder tank ruptures Cut two round balsa plugs ends rocket tube Use 5-mm epoxy glue place making sure inside surfaces plugs also have coat epoxy Check fit tube wing Sand outside tube glue will adhere well coat thin coat aliphatic resin glue slide its hole outboard wing Make sure doesnt extend beyond edge wing Cut belicrank mount slot center rib drill two 2-in holes slot ends belicrank mount comes through inboard side model ing knife cut out slot As can see plans bellcrank mount has taper does slot can use small file get taper center rib Check fit often bellcrank mount taper put bellcrank mount cannot pull out rib Glue bellcrank mount slot aliphatic resin Now glue two maple engine mounts center rib aliphatic resin After dry glue 2 plywood engine mount doubler place again aliphatic resin rectangular hole must cut doubler front spar First drill hole through area carve out modeling knife everything dry cut mounts down shape shown plans Moto Shop Sand down doubler rear tapers flush rib Center punch location engine bolt holes drill out Put some CyA glue down hole making sure soaks wood Redrill holes prevents holes getting fuel soaked Drill holes dowels location shown plans glue dowels place aliphatic resin Attach 018 stranded lead-out cables /2A bellcrank C Goldberg #263 Sig #SH 234 Before sand over lead-out holes bellcrank take off sharp edges may cut lead-outs pushrod hole bellcrank will have drilled accept threaded pushrod leave 1 /2 2-in loops lead-outs bellcrank 3A2-in brass copper attachment tubes flatten lock lead-out cable placing vise hitting hammer have crimping tool can use Bend cut pushrod exact shape shown plans Slip pushrod bellcrank bolt assembly bellcrank mount use wood screw comes bellcrank set replaced bolt nut Add drop oil bellcrank bushing smooth operation Cut excess bellcrank bolt tapered groove has cut wings leading edge accommodate tapered front spar mark area felt-tip pen cut some material out modeling knife can sanded perfect fit can glue some sand paper edge scrap sq spar make exact sanding tool oper ation Fit front spar center rib assembly test fit outboard wing off work until fit perfect Some inboard wing has cut out lead-out slot bellcrank will fit binding Try cut out too much foam can create weak spot Mark location pushrod will pass out wing melt out slot hot wire Again make slot too big Continued page 156 154 Model Aviation 0 NEW BUSY PEOPLE KITS CITABRIA STINSON L5 9 CESSNAZLIN 50L 56 INCH ALL BALSA DELUXE PRE-FAB PROFILE FLYING MODELS $695 RUBBER POWER LOG $150 -MA LA MESA CA 92041 Power Soar New Heights C LT-50 Electric Motor 01 Cu equivelent gas engine displacement Send self-addressed stamped envelope catalog ap plication notes Leisure 11 Deerspring/Irvine/CA 92714 THIS FUEL FEATURES ORUST PREVENTION AGENTS ODETERGENTS OLUBRICAllON WITH HIGH FLASH POINTS WEmNG AGENTS FOR MORE EFFICIENT AND DEPENDABLE FUEL FLOW OANTI-FOAMING AGENTS TO PREVENT LEAN RUNS KEEPS YOUR ENGINE RUNNING COOL OAN ODORLESS HIGHLY REFINED FUEL OCHILDPROOF LIDS Available FAd 5 10 15 25 & 40% Nifro-Methane Contents Formulated synthetic lubricants Also available castor DEALERS WANlED DOMESTIC & OVERSEAS WE EXPORT competitrn fuel fast becoming ThE CHOICE tap profesionols tirot cash product Contact us price structureS ordering information Manufncturers Major Brand Distributors Model Engines Kits Radios Accessories SUPER K Fuels brand KINGS RADIO CONTROL HOBBIES INTERNATiONAl 3960 West 16 Ave Hialech Florida 33012 305 557-2024 inboard wing must made fit per fectly bellcrank area also en gine mount doubler latter easy sanding block sliver foam has removed now ready glue wing center rib 5-mm epoxy critical steps careful inboard half first Spread some epoxy contact surface areas wing panel careful get epoxy lead-outs bellcrank pushrod spar notches front spar groove can use front spar scrap /x sq wing spar material help locate wing correct position press wing center rib line up trailing edge center rib use masking tape temporarily hold place Hold inboard wing center rib until glue hardens Pull out front spar scrap wing spars stray globs epoxy wont glue place outboard wing panel lot easier Mix enough epoxy coat outboard side center rib front spar grooves Slip front spar through engine mount doubler its groove inboard half Put scrap wing spars place extend about 2 outboard wing side will serve guides Press outboard wing onto center rib Line up outboard trailing edge inboard wing trailing edge Use masking tape hold place keep front spar place Hold wing until epoxy hard ens Find two wing panel cradles exact size having matching cut-out lines will used hold wing panels perfect alignment spars drying Spread some aliphatic resin glue along spar groove top Slip top spar place Put wing cradles spar facing up Make sure wing panel cradles perfectly flat surface Put some weights spar hold place drying thoroughly dry same bottom spar Sand spar ends flush wing tips Press A2-in lead-out eyelets place inboard wing tip CyA-glue place Use filler micro-balloons baking soda around eyelets come through wing tip Make sure cross lead-outs feed through eyelets can use 5-mm epoxy contact cement foam glue A2 plywood wing tips foam make lead-outs same length about 2/2 extending beyond wing tip Pull lead-out far can bend 2/2 models chances wont have adjust handle model another use metal eyelets lineparts packages lead-out ends along -in lengths brass copper tachment tubes can flatten crimp same way did bellcrank Golden nel RadiO Control TI4 34 Chafl Kit #107 $3995 099 15 EngInes 46 Wingspoa Dealer ributor inquiriesPlease send 500 Phone 17031 273t593for Flyline Catalog Flyline Models Inc PO Bee 2136 FairIes Virginia 22031 USA PRODUCTS FAAMODELER Complete Line Exhaust Systems * Tuned Muffled Tuned Pipes Headers uri Mufflers Expansion Mufflers copter Ball Mufflers ialized Exhaust Systems Unsurpassed WorkmanshD & Performance Ikon NWST PO Box 566 Auburn WA 98071 206 941-8248 156 Model Aviation SlySir/von Lopez Continued aoe 154 specially formulated chemically balanced fuel top pellormance minimum engine wear weather condition CORBEN SUPER ACE 4 CYCLE POWERED 80 WINGSPAN SEND $100 FOR COMPLETE CATALOG OF FINE KITS THE MEN TRAINER Discover what thousands MEN TRAINER pilots have learnedthere jean easy way learn fly A/C Fly trainer specifically designed absolute beginner A/C Years design engineering flight testing updating have given plane its unique flight characteristics Make introduction A/C flying enjoyable experience MEN TRAINERs ultra stability slow flight characteristics will allow hands-off recovery control errors large size gives maximum visibility easy altitude recognition during learning process FEATURES Under-cambered wing ample dihedral slow 5 30 MPH stable flight 3 lb flying weight average radio installed Large roomy fuselage ease radio installationSturdy plywood-spruce-balsa construction withstand beginners abuse learning landEasy follow plans inatructionpre-formed landing gear braceTHRU-CUT die cutting combined TRI SQUARE-LOC construction fast easy assembly Complete hardware packageMonokote cutting guide Building time 12 25 hours THE TWIN TRAINER youve always wanted fly twin have put off cost problems hazards MEN has airplane youve wating fort MEN TWIN TRAINER Weve taken ultra stable MEN TRAINER has introduced thousands modelers pleasures RIC modeling converted simple twin design can flown trimotort new MEN TWIN TRAINER available two ways complete kit already own MEN TRAINERS ass simple building wing kit nose conversion requires no further modification airplane Just switch wings youre off Model Engineering Norwalk% THRU CUT die cutting combined TRI-SQUARE-LOC construc tion plywood betas spruce make construction fast simple MEN TWIN TRAINER can flown two 09 15 engines three channel radio easy-flying twinengine fun MEN TWIN TRAINER cant beat side Use razor blade metal yardstick trim excess foam trailing edge Make 3/s-in-dia bladder tube access hole drain vent hole Check plans exact location Sand entire wing smooth dont round thin trailing edge trailing edge should square sharp possible Coat engine mount area about 1-in foam area slow-cure epoxy Put some epoxy around bladder tube access drain vent holes fill gaps holes around front spar going decorate model now time use different product organization stickers should put AMA number model usually put name mod els also have found pre-mixed tempera paint posters works well foam heavy dont use too much simple stripe two outboard wing tip weight will give model enough color distinguished judges air Having worked AMA Nationals judge know color model helps accurate scoring have found Fas Cal very strong covering material structure Cover wing sheet Fas Cal top bottom Use sealing iron adhere shrink covering Ex periment scraps foam Fas Cal get right heat setting iron iron sets about 45% maximum heat Heat guns get too hot will melt foam THE MEN TRAINER extra strength can add 4-in-wide double layer Fas Cal center section model Sand Fas Cal just bit tail boom will located Use 5-mm epoxy glue place Sand stabilator airfoil shape Add nylon hinge material area control horn will lo cated use CyA glue Cover stab Fas Cal add double layer leading edge will sewn mount Using 36 45-lb-test braided nylon fishing line sew stabilator will need some large-eye sewing needles task sizes 18 22 tie knot 36-in length fishing line melt end over flame knot wont unravel line should go through hole twice Dont tighten up line until stabilator lined up trailing edge wing Tighten line check alignment again perfect put drop CyA glue hole Trim off excess line Locate control horn screw place just push pin through stabila tor wood screw will go serve pilot hole Hook up mini snap clevis adjust pushrod equal travel up down Use top hole control horn Epoxy penny outboard wing tip between spars Coat wing tips clear polyurethane varnish Also coat edges Fas Cal completely fuelproof structure Bolt Tee Dee 049 05 1 will ready fly /2A combat flown 012 lines 35-ft length Use inside holes small Sullivan Pylon Brand handle 11-2 Cox Tee Dee 049s like good bit nitromethane fuel run about 25% Bladders made 3/16-in latex tubing having /32-in wall have found very small black neoprene tubing works real well fuel line recotumend use small Hi Johnson fuel filter fill bladders will need disposable plastic syringe Make adapter medium fuel tubing 2-in length 3A2-in brass copper tubing end syringe will fit small neoprene fuel line adapter should securely fastened syringe copper wire Check warps before make first flight notice warps after first flight iron out Make adjustments pushrod control horn until get desired turning radius Practice can until know exactly what model capable doing Practice Combat flying will ready serious com petition Good luck can buy SlySir wing cores Phil Cartier/Core House Box 300A RD #2 Palmyra PA 17078 Write prices SAFE FLYING IS NO ACCIDENT March 1984 157 THE TWIN TRAINER