NO OCR TEXT NO OCR TEXT Above inupy unu uuuput uuiau iuup wau umi uuu easily made See text fordetalis securing canopy finger grips greatly simpilfy gripping hand-iaunches slicker iook antenna runs through fuseiage before exiting Radio Shack microswitch left provides motor on/off control through radio very important also install manual motor kill switch well batteVs hard-wired plugged circuit manual switch safety feature should overlooked Finger grips wing make easier safer hold onto airplane Balanced comfortably between thumb index finger positive control launching 26 Model Aviation urapnic aetails personaiize your air piane case iettering pressuresensitive vinyl applied top MonoKate trim sheet lightening bolt MonoKote straightforward aileron control instaila trim striping tape Goldberg tion uses Du-Bro 1/2A aileron package 5ecause OT fla quietne. ana ama rne modei can have tooiing around iocal sports fields open area impromp tu flying sessions aimost hasslefree modei grooves weli dont expect verticai performance takeoff NO OCR TEXT time setting up approach model easily flown anyone average sport flying capabilitiesbeing Spars held plan bulletin board push pins line along top spar guide aligning shear webs gluing place trail ing edge propped up lengths balsa maneuverable stable predictable being fast simple design keeps construction time minimumand holds weight down completed ready-tofly model should weigh between 20 23 difficulties hand-launching rap SFSR TIP BOTTOM SFSR TIP / \ \ \ 3/32 BALSA KyHEET WHO Ps 1/16 BALSA VS GRAIl WEBS WI 1/IS BALSA SHEET TE -lOP 8 BOTTOM wI I/I6B WEBS 3/32 AILEF F DIHEDRAL BRACES WING TiP DETA L 1/B BALSA SHEET--BTOP~BOT NOSE SARADIO C SHEE F-Ir77 SIDE NOSEV DOUBLERSL2 F-IA 1/4Vi BALSALL NOSEBATT COOL- RADII HG HOLES BULKHEAD1/Bc 1/4 T/I6DIAL16 BALSA HATa CROSS F-I ASIRO 035GRAIN 14 o oo _ 44 SOO MA I/IS PLY ILXMNr 7 MOTOM MOI*4TIF4G SCREWS 4-40 I/BA1/16 BALSACA 1/8 BALSA DOUBFuse CROSS GRAIN MOIS COSF Fl \I/S2PtY\ 1/16 BALSA SHEET 1/6 BALSA TOP TTOM DOUBLERS After pinning down spars trailing edge add ribs webs tip root Adding webs before top spar installed much easier wedging later 28 Model Aviation completed prototype wing horizontal vertical stabilizers main fuselage parts ready assembly wing has tip rib spaced closer shown plans scrap pieces spar material notches stackthe ribsforalignmentand sand match pattern spar trailing edge shear webs cut 4-in-wide balsa I/lB DIA MUSIC WIRE NGLD DOWN PBO1/32 BALSA SHEET3/16 SQ BALSA TOP B BOTTOMLEADING EDGE W-IW-2 FINGER GRIP 1/16 BALSA L8 BALSA CROSS BRACE W-3 D-2 -~ E di HARD WOOO O MOUNTS WING 11W1 PLAN 1/16 C GRA- BALSA RIBS HINGE TO SUIT W-I TOP 1/4x 1/16 SPRUCE SPARS W-IWI VIEW - _ 4 ___ TE EXTENSIONS TOP I/B BALSA BOTTOM 1/32 PLY 1/8SO HO BALSA LEADING EDGEj 1/2 STRIP AlL AGE1/16 BALSAFIN SLOT FINGER GRIPS / LEV2 REQ REQDETAILSHEETINGSTILIZE PLY-T -_____________________ REQ_______ CUT LINES I 2REO - ___ 2 REQ BC v--0 -REQ REQ- -2 AB1/B BALSA BLERS-REQSHEET 1/8 BALSAF-2 1/32 PLYALL RIBS 1/16 C GRAIN BALSAFIN 0OR7 ROYAL MILITARY CANGPY 1/8, 3A6 BALSA INSTRUMENTS DRAWN ON MOTOR SWITCH /B BALSA SHEET HITE PAPER B GLUED 1/8 I/4 HQ WOODI/B SQ BALSATO REAR OF PANEL WOOD SCREWSSTAB LEFRONT HOLD DOWNI/BBALSA 1A6 1/4 HO WOOD1/16HOLES CUT WITH --- / 7BALSA3/16 ID BRASS lUBE IiL~tW FUSELAGE SIDE.--ISHEET jL2zzrThVILWHRU STAB KiN KEYED 183" 4-1/2SCREWSI/16BALSA SIDESHINGE LINE A/1621/2RUD-ELEVRADIO COMR HATCH DETAIL HO WOODI/B SQ BALSA LONGERONS BALSA PUSHROOAND CROSS BRACES E VSUPPORTOPEN FRAMEWORK 11tH 1/B BALSA -V /SHEET I/B 4 BALSA / SHEET TO -4 ELEVATOR 332 BALSA SHEETPAPER CLIP JOINER BOTTOM TE PIN 1 TRAILING EDGE 3/16 SQ 1/4 SQ COCKPIT DETAIL BAa- RESTHEAD-REST I/8BALSAI/4BALSA 1/4DIA LBALSA INSTRUMENT PANEL 1/16 BALSA K7 KILL SWITCH 65 271-406 CHARGIN AMP JACK_ 0FUSE BAIT PACICSERVO ACTVD SW AS 275-046 MODEL AVIATION LAVLTh RJV 035 ELECTRIC --FORWARD HATCH DETAIL WING SPAN 44B WT 21 OZ AREA 290 SQ IN LOADING II OZ 0 2 3 4 5 K DESIGNED DRAWN BY KEN MARRON IThAj11113 low-wing design has always gripping model near center-of-gravity CG finger grips underside wing attempt solve problem prefer rudder-and-elevator configuration can made doubling dihedral angle 120 hinging rudder along dotted line shown plan Decide way want build model nowand lets begin building Wing construction Make rib template A2 plywood pin sheet of46 C grain stiff straight-grain balsa fas tening both onto cutting board method keeps template slipping helps ensure uniform results Have two scrap pieces 1/16 x -in spruce spar stock handy 14 ribs cut out place between two spar scraps check proper spar-notch fit ribs stacked between spar scraps add template front pile sand ribs its exact July1987 29 1/32 PLY DIHED BRACES Full-Size Plans Available Page 178 MT JOE bEjwMrnu last look centersection before sheeting hides Things note finger grips center rib spacing should adjusted now suit aileron servo outline Trim /i2 top bottom four ribs form W2s W3s eight 6 balsa vertical-grain shear webs cut 4-in-wide stock available otherwise half-width pieces cut 2- 3-in-wide stock butted tightly together will suffice top bottom trailing edge strips TE webs also cut 6 balsa Finally make dihedral braces Dl D2 A2 plywood rear brace D2 A6 narrower Dl allow 1A2in top bottom sheeting rest major parts made up way wing construction will move along quickly like use building board hinged middle order eliminate possibility building twist wing panels joined Prop up both sides hinged board two separate boards butted together middle dihedral brace Dl fits V flush surface both sides producing angle about 60 Cut wing pattern plans sheet fold half creasing along wing centerline Pin board cover plastic film Once wing finished can tape wing pattern back place using clear transparent tape entire model glued cyanoacrylate CyA unless otherwise specified wing built following se quence Bevel ends two pieces 6 x -in spruce spar material cut length Note bottom spar shorter top extends outer edge last Wl rib Join bevelled ends white glue pin spars place over plan Since hard push straight pins through hard spars use bulletin-board-type push pins positioned along length hold spars place semi-symmetrical airfoil its eas ier build wing bottom TE strips propped up shims run length TE Y16-sq piece front -in-sq toward rear edge work well Using few ribs spacers pin bottom TE strips place through shims glue butted edges together Starting tip wing panel glue down rib shear web TE web Continue until five Wl ribs wing half place Add top spars Y16-sq LE using white glue install front dihedral brace Dl clamp position clothespins remainder center-section pieces shimmed up 2 installed following order W2A W2B D2 white glue -in cross brace between ribs W2B lastly sections W3 ribs Space W3C sections suit aileron servo Finish installing TE webs top TE sheeting Add top bottom center-section sheeting Round off lead ing edge add wing tips finger grips remainder wing will completed after fuselage built Fuselage Cut sides two pieces medium-weight straight-grain V16 x 3 x 36-in balsa equal density will curve evenly Clamp both halves gether clothespins using balsa scraps prevent soft wood denting sand identical shape 30 Model Aviation positions Fl FlA P2 marked insides fuselage halves After squaring formers triangle glue half fuselage CyA Lon gerons doublers added before joining everthing must square After trial fit radio compartment floor position fuselage halves joined Use centerlines formers graph paper make alignment easier accurate Square up aides triangle right clamp place Temporarily wrap tape around body motor forget remove before running motor prevent sawdust entering half-round file remove just enough material nose doublers allow motorto slip through opening After white glue used attach radio compartment floor thoroughly dry pull nose clamp top bottom doublers place Flood jointswith CyA Nose details include locations OT doublers longerons hatch hold-down blocks radio compartment doublers forward hatch Cut out radio compartment doublers B remaining scrap Formers Fl F2 made hard -in balsa F lA either piece hard balsa two pieces -in balsa glued together four nose doublers cut medium-density -in balsa radio compartment floor /32 plywood Although cut out motor battery vent holes after fuselage constructed its easier sides flat cutting board sharpened piece ofMs ID brass tubing makes good tool Carefully mark off vertical centers Fl FlA F2 mark off locations inside fuselage halves Using triangle ensure accuracy glue formers Fl F2 half fuselage Orient former FlA its centerline faces toward rear Glue place white glue clamp together until dry Glue doublers B between formers making sure slit between wide enough accept floor Add Vs-in-sq balsa longerons attach -in nose doublers white glue Prepare other half fuselage gluing doublers B lon gerons leaving spaces formers F 1 F2 slide nose doublers Trial-fit sides together floor position sand down inside rear fuselage halves drawn together taper sfied fit disassemble pieces place bead white glue floor slots top FlA Fit sides floor back together Put C-clamps around fuselage F 1 F2 fuselage over plan orwith help some other alignment aid pull tail clamp position hespin everything lined up properly triangle shows sides square building board glue F 1 F2 tail place Let white glue dry thoroughly before continuing Draw line down center top bottom nose doublers help align ment Pull nose position doublers clamp place liberally hit joints CyA glue Finish fuselage adding 1/16 balsa top bottom nose area cross-grain sheeting -in balsa cross braces Use white glue three Vs x -in hardwood hatchhold-down blocks n rearwing-hold-down block Finally make up hatches 1/is balsa Nose Bulkhead Draw out bulkhead sheet l/~ plywood stock Cut slots drill holes cut out bulkhead itself During construction cover motor vent holes tape prevent sawdust getting remember remove tape before running motor Drill Yis-dia center hole motor first -in-dia motor mount ing holes Check see motor lines up properly air inlets formed drilling in-dia hole corner inlet filing out area between rattail file sanding block sand down front nose bulkhead will seat flush against front edges doublers must filed down slightly allow motor slip through opening Continued page 32 July 1987 31 strip aileron hardware epoxied grove filed along joint between trail ing edge balsa extension Light cloth epoxied overthe brasstublng adds strength rear vertical stab hanging over edge building board seated slot horizontal stab CyA two pieces together using triangle accuracy Additional strength obtained gluing piece 1/32 plywood underside TE balsa TE extension ply tapered blend sheeting finished framework readyforcovering should weigh about41/2 oz Pickone lighter covering materials keep overall weight down Atterthe model covered canopy attached fuselage narrow strip ironon covering material Im going flying words conjure up images battles balky engines instead carefree days field youre using McDaniel R/C NiStarterTM light plug NiStartersTM heavy-duty nicad power will provide up 50 reliable quick starts charge features famous Head LockTM adapter brass reinforcing ring around crimped end really extends its life works sideways inverted information well NiStarter works just go local flying field may have wait NiStartersTM always flying McDaniel RIC FIncorporated 12206 Guinevere Road enn Dale MD 20769 3011464-2260 Telex 287901 McD-UR K take hassle out hobby 32 Model Aviation Bolt motor bulkhead trialfit through opening Saturate front nose CyA glue slip motor bulkhead back position until adhesive sets up Unbolt motor round off corners nose fuselage eliminate boxy look Tail Section Build stabilizer fin over plan help square triangle assure 900 alignment glue fin its slot stab Attach assembled tail section fuselage using favorite method alignment round off edges Wing Mounting Check see wing rests properly its saddle add hold-down peg drilling A6-dla hole wing LE dihedral joint Cut 1in peg /16-dia music wire roughen up half file Drop some CyA glue hole roughened wire push wire hole Center wing saddle slide forward until tip music wire touches centerline F lA Make indentation Fl wire wing removed drill /~ hole through FlA Fl necessary elon gate hole rattail file proper wing seating Cut out two -in balsa TE exten sions wing back place fit between rear wing F2 glue wing Cut out 1 x 4-in piece of/32 plywood attach white glue underside TE balsa TE extension Clamp clothespins drying sanding block taper plywood blend center-section sheeting Drill holes through extensions sheet metal hold-down screws file grooves along joint TE extension piece accept brass tube strip aileron set Make up set roughen up brass tubes epoxy place Epoxy light fiberglass cloth fabric over added rein forcement Remember think light applying epoxy Align wing per fectly drill holes through holddown block accept sheet metal screws Covering Sand entire model lightly wipe down tack rag before covering lightweight material model presented covered Top Flite EconoKote has weight /s oz per sq ft After entire plane covered ailerons elevators hinged EconoKote follows Cut two strips covering material Ye x 12 Peel off backing overlap about adhesive sides facing other heatseal together Cut 1-in widths ailerons -in widths elevator apply surfaces over-and-under pattern Continued page 34 * Over $200000 prizes drawn * Guest appearance Ivan Kristensen *Trophies awanled foc best show best flyer best 4 cycle aircraft best sport scale aircraft *Frec intro lesson radio control flying *Fr sport shirt first 100 pilots *BARBQ cook Saturday evening *DOOr prizes spectators *Raffles airplane kits PARKING STEELES AVE IALBION RD C zREXDALE BLVD 0 HWY 401 Contact HUMBER VALLEY R/C FLYERS 105 Stiliwater Cr Willowdale Ont M2R-353 416 222-7509 ATT- CHEIC ON-Board Battery Tester Saves Time. Saves Models BATT-CHEK RX-1 7~$1495 NT P U Use TATON ES THRUST TESTER determine maximum engine output using different props fuel mixtures RPM levels Check engine aaainst another 34 Model Aviation NW Install RO Models Check receiver battery status press button Small Light /2 oz Precise Rugged ORDER TODAY dealer Protune corp t91 41462-6452 PO Boa 1808 Poughkeepsie NY 12601 OPTIMIZE YOUR ENGINES OUTPUT TATONES THRUST TESTER TATONE 30-13 ALUM MOTOR MOUNT ENGINE THROTTLE CONTROL SAFETY STARTING LOCK Canopy hope take time install headrest instrument panel well canopy since add lot appearance model radio compartment hatch screwed place trim bottom canopy conform its shape Cut away hatch covering interior details will placed before attaching After attaching interior details have someone hold canopy place attach hatch strips Y16-in-wide tape made covering materialfirst making sure theres no dust trapped inside Position tape carefully before applying heat method makes much stronger bond can achieved commercial trim stripping tape Radio installation elevator motor control servos mounted strips 46 plywood rest top doublers motor on-off microswitch Radio Shack #275-016 positioned left wall turned transmitter control stick trim tab full-throttle position Mark location attach switch epoxy use CyA glue chance will run inside switch render useless Motor installation Because battery pack permanently soldered motor cannot unplugged safety kill switch must installed system prevent accidental motor turn-on pos sible injury prop during trans porting range checking making adjustments Please eliminate it important safety feature constant torque small electric motor such should underestimated As further aid safety remove prop plane away flying field After charging jacks switches installed wired position receiver run its antenna back through fuse lage out hole near pushrod exit Position receiver battery pack get model balance correct CG tail built lightly shouldnt problem Charging vents fuselage sides above motor battery pack much cooling batteries flight dissipating heat during charging 6-amp 12-volt lead-acid start ing battery average condition has suf ficient charging capacity five six flights Little current drawn flight system no binding control surfaces pushrods 30 minutes flight time should expected 100 mAh battery using mini system Checking its condition between flights strongly advised however Trimming flying Elevator throw should about ailerons Continued page 136 FUNFLY 4- CYCLE EXTRAVAGANZA 2 cycle sport scale welcome JUNE 27 & 28 1987 Sponsored NATIONAL HOBBY stores CANADAS LARGEST 4CYCLE RALLY Toronto Ont Spectators $200 per person per day Pilot registration $1000 per day Noise limit 88db 7 meters enforeed DIRECT READING THRUST DIALONLY $6996 NOR THEA ST AEROD YNAMICS 61C LEBANON STREET ORD ME 04073 490-1881 TRAIN-AIR 20 TRAIN-AIR 40 SPORT-AIR 40 BEL-AIR 40 AO U See local dealer call us referral BEL-AIR 60 Safety Preston Continued page 22 wear gloves dust masks safety gog gles special clothing respirators Learn about chemicals materials what precautions should taken working Study warning labels have questions contact manu facturer ask safety data sheets can replace hazardous materials safer ones Store materials original containers keep covered Keep work area clean Wipe up flammable liquid spills immediately put soaked rags tightly-covered trash container Dispose chemicals properly have World famous kits Europe Large magnificent replicas over 4 feet long beautiful walnut mahogany planking fittings details exquisitely cast bronze brass rare hardwoods Large scale plans step-bystep instructions materials included VHS Video tapecassette howto build also available Send 64-pg full-color catalog $100 MODEL EXPO INC Dept MA-77S 23 Just Road Fairfield NJ 07007 Please send full color ship model catalog $100 enclosed Name questions about disposal contact local health fire department Dont work flammable materials near ignition source such open flame heater water heater cigarette suffer asthma emphysema aller gies heart condition check doctor about materials processes work pregnant ask doctor about continuing hobby also applies wives male hobbyists JP Space out sessions hobby give body time recover between pos sible exposures Ive previously mentioned number above DuPont safety tips dont think can hurt repeat continue see new comers enter hobby may aware some hazards associated products use Before leaving subject potentially haz ardous chemicals want mention two have seemingly similar names have very different properties methyl ethyl ketone MEK methyl ethyl ketone peroxide MEKP MEK solvent commonly used join styrene plastic products Chemically closely related ace tone addition being another common modeling solvent may well principal gredient wifes girlfriends nail polish remover recent letter claimed writer told never allow MEK come contact ones skin since readily ab sorbed ones system will stay until die letter-writer also stated told MEK will cause permanent blind ness upon contact eyeball latter statement leads believe confusing MEK MEKP Methyl ethyl ketone peroxide MEKP clear liquid hardener accompanies polyester resin strong oxidizer extreme care should taken avoid getting drop ones eye Such mishap could well result permanent eye damage blindness would rather get drop methyl ethyl ketone MEK eye does present anywhere near same hazard eyes does MEKP eyes immediately flushed water upon contact MEK no lasting damage should result Similarly am aware MEK presents hazard due skin contact Cyanoacrylate CyA glues have also con fused MEKP some letter-writers writers believed mere drop CyA eye would result instant blindness drop CyA glue eye may well cause eyelids become stuck together likely will very uncomfortable its likely will result permanent damage However would urge take precautions against getting anything eye days ever find time would like list various chemicals use hobby together associated hazards handling precautions Meanwhile urge take care John Preston 2812 Northampton St N W Washington DC 20015 Low Voltage/Marron Continued page 34 /I6 Make sure kill switch off position check controls working properly right direction Since plane light glides well its easy trim out standing top small hill firmly throwing power nose level slightly down wind Make whatever adjustments necessary before attempting powered flight Top Flite nylon 6 x 4 prop installed turn kill switch check proper control surface movement start motor Launch model good shove nose down prevent stall let fly straight level until picks up speed Start feeding some up elevator remembering small electric motor doesnt have much power snarling glow engine Low Voltage has gained some height heart starts beating nor mally again put through some maneuvers get feel control responses Make mental notes adjustments may needed After about 4 5 min will hear whine motor noticeably decrease pitch model wont climb Its time shut off mjttor prepare landing ailerons effective down stall speed experienced landing planes landing gear will pleasantly surprised ease accomplished responding advertisers mention read about ModelAviation 136 Model Aviation city State_____________________ Zip
Edition: Model Aviation - 1987/07
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 31, 32, 34, 136
NO OCR TEXT NO OCR TEXT Above inupy unu uuuput uuiau iuup wau umi uuu easily made See text fordetalis securing canopy finger grips greatly simpilfy gripping hand-iaunches slicker iook antenna runs through fuseiage before exiting Radio Shack microswitch left provides motor on/off control through radio very important also install manual motor kill switch well batteVs hard-wired plugged circuit manual switch safety feature should overlooked Finger grips wing make easier safer hold onto airplane Balanced comfortably between thumb index finger positive control launching 26 Model Aviation urapnic aetails personaiize your air piane case iettering pressuresensitive vinyl applied top MonoKate trim sheet lightening bolt MonoKote straightforward aileron control instaila trim striping tape Goldberg tion uses Du-Bro 1/2A aileron package 5ecause OT fla quietne. ana ama rne modei can have tooiing around iocal sports fields open area impromp tu flying sessions aimost hasslefree modei grooves weli dont expect verticai performance takeoff NO OCR TEXT time setting up approach model easily flown anyone average sport flying capabilitiesbeing Spars held plan bulletin board push pins line along top spar guide aligning shear webs gluing place trail ing edge propped up lengths balsa maneuverable stable predictable being fast simple design keeps construction time minimumand holds weight down completed ready-tofly model should weigh between 20 23 difficulties hand-launching rap SFSR TIP BOTTOM SFSR TIP / \ \ \ 3/32 BALSA KyHEET WHO Ps 1/16 BALSA VS GRAIl WEBS WI 1/IS BALSA SHEET TE -lOP 8 BOTTOM wI I/I6B WEBS 3/32 AILEF F DIHEDRAL BRACES WING TiP DETA L 1/B BALSA SHEET--BTOP~BOT NOSE SARADIO C SHEE F-Ir77 SIDE NOSEV DOUBLERSL2 F-IA 1/4Vi BALSALL NOSEBATT COOL- RADII HG HOLES BULKHEAD1/Bc 1/4 T/I6DIAL16 BALSA HATa CROSS F-I ASIRO 035GRAIN 14 o oo _ 44 SOO MA I/IS PLY ILXMNr 7 MOTOM MOI*4TIF4G SCREWS 4-40 I/BA1/16 BALSACA 1/8 BALSA DOUBFuse CROSS GRAIN MOIS COSF Fl \I/S2PtY\ 1/16 BALSA SHEET 1/6 BALSA TOP TTOM DOUBLERS After pinning down spars trailing edge add ribs webs tip root Adding webs before top spar installed much easier wedging later 28 Model Aviation completed prototype wing horizontal vertical stabilizers main fuselage parts ready assembly wing has tip rib spaced closer shown plans scrap pieces spar material notches stackthe ribsforalignmentand sand match pattern spar trailing edge shear webs cut 4-in-wide balsa I/lB DIA MUSIC WIRE NGLD DOWN PBO1/32 BALSA SHEET3/16 SQ BALSA TOP B BOTTOMLEADING EDGE W-IW-2 FINGER GRIP 1/16 BALSA L8 BALSA CROSS BRACE W-3 D-2 -~ E di HARD WOOO O MOUNTS WING 11W1 PLAN 1/16 C GRA- BALSA RIBS HINGE TO SUIT W-I TOP 1/4x 1/16 SPRUCE SPARS W-IWI VIEW - _ 4 ___ TE EXTENSIONS TOP I/B BALSA BOTTOM 1/32 PLY 1/8SO HO BALSA LEADING EDGEj 1/2 STRIP AlL AGE1/16 BALSAFIN SLOT FINGER GRIPS / LEV2 REQ REQDETAILSHEETINGSTILIZE PLY-T -_____________________ REQ_______ CUT LINES I 2REO - ___ 2 REQ BC v--0 -REQ REQ- -2 AB1/B BALSA BLERS-REQSHEET 1/8 BALSAF-2 1/32 PLYALL RIBS 1/16 C GRAIN BALSAFIN 0OR7 ROYAL MILITARY CANGPY 1/8, 3A6 BALSA INSTRUMENTS DRAWN ON MOTOR SWITCH /B BALSA SHEET HITE PAPER B GLUED 1/8 I/4 HQ WOODI/B SQ BALSATO REAR OF PANEL WOOD SCREWSSTAB LEFRONT HOLD DOWNI/BBALSA 1A6 1/4 HO WOOD1/16HOLES CUT WITH --- / 7BALSA3/16 ID BRASS lUBE IiL~tW FUSELAGE SIDE.--ISHEET jL2zzrThVILWHRU STAB KiN KEYED 183" 4-1/2SCREWSI/16BALSA SIDESHINGE LINE A/1621/2RUD-ELEVRADIO COMR HATCH DETAIL HO WOODI/B SQ BALSA LONGERONS BALSA PUSHROOAND CROSS BRACES E VSUPPORTOPEN FRAMEWORK 11tH 1/B BALSA -V /SHEET I/B 4 BALSA / SHEET TO -4 ELEVATOR 332 BALSA SHEETPAPER CLIP JOINER BOTTOM TE PIN 1 TRAILING EDGE 3/16 SQ 1/4 SQ COCKPIT DETAIL BAa- RESTHEAD-REST I/8BALSAI/4BALSA 1/4DIA LBALSA INSTRUMENT PANEL 1/16 BALSA K7 KILL SWITCH 65 271-406 CHARGIN AMP JACK_ 0FUSE BAIT PACICSERVO ACTVD SW AS 275-046 MODEL AVIATION LAVLTh RJV 035 ELECTRIC --FORWARD HATCH DETAIL WING SPAN 44B WT 21 OZ AREA 290 SQ IN LOADING II OZ 0 2 3 4 5 K DESIGNED DRAWN BY KEN MARRON IThAj11113 low-wing design has always gripping model near center-of-gravity CG finger grips underside wing attempt solve problem prefer rudder-and-elevator configuration can made doubling dihedral angle 120 hinging rudder along dotted line shown plan Decide way want build model nowand lets begin building Wing construction Make rib template A2 plywood pin sheet of46 C grain stiff straight-grain balsa fas tening both onto cutting board method keeps template slipping helps ensure uniform results Have two scrap pieces 1/16 x -in spruce spar stock handy 14 ribs cut out place between two spar scraps check proper spar-notch fit ribs stacked between spar scraps add template front pile sand ribs its exact July1987 29 1/32 PLY DIHED BRACES Full-Size Plans Available Page 178 MT JOE bEjwMrnu last look centersection before sheeting hides Things note finger grips center rib spacing should adjusted now suit aileron servo outline Trim /i2 top bottom four ribs form W2s W3s eight 6 balsa vertical-grain shear webs cut 4-in-wide stock available otherwise half-width pieces cut 2- 3-in-wide stock butted tightly together will suffice top bottom trailing edge strips TE webs also cut 6 balsa Finally make dihedral braces Dl D2 A2 plywood rear brace D2 A6 narrower Dl allow 1A2in top bottom sheeting rest major parts made up way wing construction will move along quickly like use building board hinged middle order eliminate possibility building twist wing panels joined Prop up both sides hinged board two separate boards butted together middle dihedral brace Dl fits V flush surface both sides producing angle about 60 Cut wing pattern plans sheet fold half creasing along wing centerline Pin board cover plastic film Once wing finished can tape wing pattern back place using clear transparent tape entire model glued cyanoacrylate CyA unless otherwise specified wing built following se quence Bevel ends two pieces 6 x -in spruce spar material cut length Note bottom spar shorter top extends outer edge last Wl rib Join bevelled ends white glue pin spars place over plan Since hard push straight pins through hard spars use bulletin-board-type push pins positioned along length hold spars place semi-symmetrical airfoil its eas ier build wing bottom TE strips propped up shims run length TE Y16-sq piece front -in-sq toward rear edge work well Using few ribs spacers pin bottom TE strips place through shims glue butted edges together Starting tip wing panel glue down rib shear web TE web Continue until five Wl ribs wing half place Add top spars Y16-sq LE using white glue install front dihedral brace Dl clamp position clothespins remainder center-section pieces shimmed up 2 installed following order W2A W2B D2 white glue -in cross brace between ribs W2B lastly sections W3 ribs Space W3C sections suit aileron servo Finish installing TE webs top TE sheeting Add top bottom center-section sheeting Round off lead ing edge add wing tips finger grips remainder wing will completed after fuselage built Fuselage Cut sides two pieces medium-weight straight-grain V16 x 3 x 36-in balsa equal density will curve evenly Clamp both halves gether clothespins using balsa scraps prevent soft wood denting sand identical shape 30 Model Aviation positions Fl FlA P2 marked insides fuselage halves After squaring formers triangle glue half fuselage CyA Lon gerons doublers added before joining everthing must square After trial fit radio compartment floor position fuselage halves joined Use centerlines formers graph paper make alignment easier accurate Square up aides triangle right clamp place Temporarily wrap tape around body motor forget remove before running motor prevent sawdust entering half-round file remove just enough material nose doublers allow motorto slip through opening After white glue used attach radio compartment floor thoroughly dry pull nose clamp top bottom doublers place Flood jointswith CyA Nose details include locations OT doublers longerons hatch hold-down blocks radio compartment doublers forward hatch Cut out radio compartment doublers B remaining scrap Formers Fl F2 made hard -in balsa F lA either piece hard balsa two pieces -in balsa glued together four nose doublers cut medium-density -in balsa radio compartment floor /32 plywood Although cut out motor battery vent holes after fuselage constructed its easier sides flat cutting board sharpened piece ofMs ID brass tubing makes good tool Carefully mark off vertical centers Fl FlA F2 mark off locations inside fuselage halves Using triangle ensure accuracy glue formers Fl F2 half fuselage Orient former FlA its centerline faces toward rear Glue place white glue clamp together until dry Glue doublers B between formers making sure slit between wide enough accept floor Add Vs-in-sq balsa longerons attach -in nose doublers white glue Prepare other half fuselage gluing doublers B lon gerons leaving spaces formers F 1 F2 slide nose doublers Trial-fit sides together floor position sand down inside rear fuselage halves drawn together taper sfied fit disassemble pieces place bead white glue floor slots top FlA Fit sides floor back together Put C-clamps around fuselage F 1 F2 fuselage over plan orwith help some other alignment aid pull tail clamp position hespin everything lined up properly triangle shows sides square building board glue F 1 F2 tail place Let white glue dry thoroughly before continuing Draw line down center top bottom nose doublers help align ment Pull nose position doublers clamp place liberally hit joints CyA glue Finish fuselage adding 1/16 balsa top bottom nose area cross-grain sheeting -in balsa cross braces Use white glue three Vs x -in hardwood hatchhold-down blocks n rearwing-hold-down block Finally make up hatches 1/is balsa Nose Bulkhead Draw out bulkhead sheet l/~ plywood stock Cut slots drill holes cut out bulkhead itself During construction cover motor vent holes tape prevent sawdust getting remember remove tape before running motor Drill Yis-dia center hole motor first -in-dia motor mount ing holes Check see motor lines up properly air inlets formed drilling in-dia hole corner inlet filing out area between rattail file sanding block sand down front nose bulkhead will seat flush against front edges doublers must filed down slightly allow motor slip through opening Continued page 32 July 1987 31 strip aileron hardware epoxied grove filed along joint between trail ing edge balsa extension Light cloth epoxied overthe brasstublng adds strength rear vertical stab hanging over edge building board seated slot horizontal stab CyA two pieces together using triangle accuracy Additional strength obtained gluing piece 1/32 plywood underside TE balsa TE extension ply tapered blend sheeting finished framework readyforcovering should weigh about41/2 oz Pickone lighter covering materials keep overall weight down Atterthe model covered canopy attached fuselage narrow strip ironon covering material Im going flying words conjure up images battles balky engines instead carefree days field youre using McDaniel R/C NiStarterTM light plug NiStartersTM heavy-duty nicad power will provide up 50 reliable quick starts charge features famous Head LockTM adapter brass reinforcing ring around crimped end really extends its life works sideways inverted information well NiStarter works just go local flying field may have wait NiStartersTM always flying McDaniel RIC FIncorporated 12206 Guinevere Road enn Dale MD 20769 3011464-2260 Telex 287901 McD-UR K take hassle out hobby 32 Model Aviation Bolt motor bulkhead trialfit through opening Saturate front nose CyA glue slip motor bulkhead back position until adhesive sets up Unbolt motor round off corners nose fuselage eliminate boxy look Tail Section Build stabilizer fin over plan help square triangle assure 900 alignment glue fin its slot stab Attach assembled tail section fuselage using favorite method alignment round off edges Wing Mounting Check see wing rests properly its saddle add hold-down peg drilling A6-dla hole wing LE dihedral joint Cut 1in peg /16-dia music wire roughen up half file Drop some CyA glue hole roughened wire push wire hole Center wing saddle slide forward until tip music wire touches centerline F lA Make indentation Fl wire wing removed drill /~ hole through FlA Fl necessary elon gate hole rattail file proper wing seating Cut out two -in balsa TE exten sions wing back place fit between rear wing F2 glue wing Cut out 1 x 4-in piece of/32 plywood attach white glue underside TE balsa TE extension Clamp clothespins drying sanding block taper plywood blend center-section sheeting Drill holes through extensions sheet metal hold-down screws file grooves along joint TE extension piece accept brass tube strip aileron set Make up set roughen up brass tubes epoxy place Epoxy light fiberglass cloth fabric over added rein forcement Remember think light applying epoxy Align wing per fectly drill holes through holddown block accept sheet metal screws Covering Sand entire model lightly wipe down tack rag before covering lightweight material model presented covered Top Flite EconoKote has weight /s oz per sq ft After entire plane covered ailerons elevators hinged EconoKote follows Cut two strips covering material Ye x 12 Peel off backing overlap about adhesive sides facing other heatseal together Cut 1-in widths ailerons -in widths elevator apply surfaces over-and-under pattern Continued page 34 * Over $200000 prizes drawn * Guest appearance Ivan Kristensen *Trophies awanled foc best show best flyer best 4 cycle aircraft best sport scale aircraft *Frec intro lesson radio control flying *Fr sport shirt first 100 pilots *BARBQ cook Saturday evening *DOOr prizes spectators *Raffles airplane kits PARKING STEELES AVE IALBION RD C zREXDALE BLVD 0 HWY 401 Contact HUMBER VALLEY R/C FLYERS 105 Stiliwater Cr Willowdale Ont M2R-353 416 222-7509 ATT- CHEIC ON-Board Battery Tester Saves Time. Saves Models BATT-CHEK RX-1 7~$1495 NT P U Use TATON ES THRUST TESTER determine maximum engine output using different props fuel mixtures RPM levels Check engine aaainst another 34 Model Aviation NW Install RO Models Check receiver battery status press button Small Light /2 oz Precise Rugged ORDER TODAY dealer Protune corp t91 41462-6452 PO Boa 1808 Poughkeepsie NY 12601 OPTIMIZE YOUR ENGINES OUTPUT TATONES THRUST TESTER TATONE 30-13 ALUM MOTOR MOUNT ENGINE THROTTLE CONTROL SAFETY STARTING LOCK Canopy hope take time install headrest instrument panel well canopy since add lot appearance model radio compartment hatch screwed place trim bottom canopy conform its shape Cut away hatch covering interior details will placed before attaching After attaching interior details have someone hold canopy place attach hatch strips Y16-in-wide tape made covering materialfirst making sure theres no dust trapped inside Position tape carefully before applying heat method makes much stronger bond can achieved commercial trim stripping tape Radio installation elevator motor control servos mounted strips 46 plywood rest top doublers motor on-off microswitch Radio Shack #275-016 positioned left wall turned transmitter control stick trim tab full-throttle position Mark location attach switch epoxy use CyA glue chance will run inside switch render useless Motor installation Because battery pack permanently soldered motor cannot unplugged safety kill switch must installed system prevent accidental motor turn-on pos sible injury prop during trans porting range checking making adjustments Please eliminate it important safety feature constant torque small electric motor such should underestimated As further aid safety remove prop plane away flying field After charging jacks switches installed wired position receiver run its antenna back through fuse lage out hole near pushrod exit Position receiver battery pack get model balance correct CG tail built lightly shouldnt problem Charging vents fuselage sides above motor battery pack much cooling batteries flight dissipating heat during charging 6-amp 12-volt lead-acid start ing battery average condition has suf ficient charging capacity five six flights Little current drawn flight system no binding control surfaces pushrods 30 minutes flight time should expected 100 mAh battery using mini system Checking its condition between flights strongly advised however Trimming flying Elevator throw should about ailerons Continued page 136 FUNFLY 4- CYCLE EXTRAVAGANZA 2 cycle sport scale welcome JUNE 27 & 28 1987 Sponsored NATIONAL HOBBY stores CANADAS LARGEST 4CYCLE RALLY Toronto Ont Spectators $200 per person per day Pilot registration $1000 per day Noise limit 88db 7 meters enforeed DIRECT READING THRUST DIALONLY $6996 NOR THEA ST AEROD YNAMICS 61C LEBANON STREET ORD ME 04073 490-1881 TRAIN-AIR 20 TRAIN-AIR 40 SPORT-AIR 40 BEL-AIR 40 AO U See local dealer call us referral BEL-AIR 60 Safety Preston Continued page 22 wear gloves dust masks safety gog gles special clothing respirators Learn about chemicals materials what precautions should taken working Study warning labels have questions contact manu facturer ask safety data sheets can replace hazardous materials safer ones Store materials original containers keep covered Keep work area clean Wipe up flammable liquid spills immediately put soaked rags tightly-covered trash container Dispose chemicals properly have World famous kits Europe Large magnificent replicas over 4 feet long beautiful walnut mahogany planking fittings details exquisitely cast bronze brass rare hardwoods Large scale plans step-bystep instructions materials included VHS Video tapecassette howto build also available Send 64-pg full-color catalog $100 MODEL EXPO INC Dept MA-77S 23 Just Road Fairfield NJ 07007 Please send full color ship model catalog $100 enclosed Name questions about disposal contact local health fire department Dont work flammable materials near ignition source such open flame heater water heater cigarette suffer asthma emphysema aller gies heart condition check doctor about materials processes work pregnant ask doctor about continuing hobby also applies wives male hobbyists JP Space out sessions hobby give body time recover between pos sible exposures Ive previously mentioned number above DuPont safety tips dont think can hurt repeat continue see new comers enter hobby may aware some hazards associated products use Before leaving subject potentially haz ardous chemicals want mention two have seemingly similar names have very different properties methyl ethyl ketone MEK methyl ethyl ketone peroxide MEKP MEK solvent commonly used join styrene plastic products Chemically closely related ace tone addition being another common modeling solvent may well principal gredient wifes girlfriends nail polish remover recent letter claimed writer told never allow MEK come contact ones skin since readily ab sorbed ones system will stay until die letter-writer also stated told MEK will cause permanent blind ness upon contact eyeball latter statement leads believe confusing MEK MEKP Methyl ethyl ketone peroxide MEKP clear liquid hardener accompanies polyester resin strong oxidizer extreme care should taken avoid getting drop ones eye Such mishap could well result permanent eye damage blindness would rather get drop methyl ethyl ketone MEK eye does present anywhere near same hazard eyes does MEKP eyes immediately flushed water upon contact MEK no lasting damage should result Similarly am aware MEK presents hazard due skin contact Cyanoacrylate CyA glues have also con fused MEKP some letter-writers writers believed mere drop CyA eye would result instant blindness drop CyA glue eye may well cause eyelids become stuck together likely will very uncomfortable its likely will result permanent damage However would urge take precautions against getting anything eye days ever find time would like list various chemicals use hobby together associated hazards handling precautions Meanwhile urge take care John Preston 2812 Northampton St N W Washington DC 20015 Low Voltage/Marron Continued page 34 /I6 Make sure kill switch off position check controls working properly right direction Since plane light glides well its easy trim out standing top small hill firmly throwing power nose level slightly down wind Make whatever adjustments necessary before attempting powered flight Top Flite nylon 6 x 4 prop installed turn kill switch check proper control surface movement start motor Launch model good shove nose down prevent stall let fly straight level until picks up speed Start feeding some up elevator remembering small electric motor doesnt have much power snarling glow engine Low Voltage has gained some height heart starts beating nor mally again put through some maneuvers get feel control responses Make mental notes adjustments may needed After about 4 5 min will hear whine motor noticeably decrease pitch model wont climb Its time shut off mjttor prepare landing ailerons effective down stall speed experienced landing planes landing gear will pleasantly surprised ease accomplished responding advertisers mention read about ModelAviation 136 Model Aviation city State_____________________ Zip
Edition: Model Aviation - 1987/07
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 31, 32, 34, 136
NO OCR TEXT NO OCR TEXT Above inupy unu uuuput uuiau iuup wau umi uuu easily made See text fordetalis securing canopy finger grips greatly simpilfy gripping hand-iaunches slicker iook antenna runs through fuseiage before exiting Radio Shack microswitch left provides motor on/off control through radio very important also install manual motor kill switch well batteVs hard-wired plugged circuit manual switch safety feature should overlooked Finger grips wing make easier safer hold onto airplane Balanced comfortably between thumb index finger positive control launching 26 Model Aviation urapnic aetails personaiize your air piane case iettering pressuresensitive vinyl applied top MonoKate trim sheet lightening bolt MonoKote straightforward aileron control instaila trim striping tape Goldberg tion uses Du-Bro 1/2A aileron package 5ecause OT fla quietne. ana ama rne modei can have tooiing around iocal sports fields open area impromp tu flying sessions aimost hasslefree modei grooves weli dont expect verticai performance takeoff NO OCR TEXT time setting up approach model easily flown anyone average sport flying capabilitiesbeing Spars held plan bulletin board push pins line along top spar guide aligning shear webs gluing place trail ing edge propped up lengths balsa maneuverable stable predictable being fast simple design keeps construction time minimumand holds weight down completed ready-tofly model should weigh between 20 23 difficulties hand-launching rap SFSR TIP BOTTOM SFSR TIP / \ \ \ 3/32 BALSA KyHEET WHO Ps 1/16 BALSA VS GRAIl WEBS WI 1/IS BALSA SHEET TE -lOP 8 BOTTOM wI I/I6B WEBS 3/32 AILEF F DIHEDRAL BRACES WING TiP DETA L 1/B BALSA SHEET--BTOP~BOT NOSE SARADIO C SHEE F-Ir77 SIDE NOSEV DOUBLERSL2 F-IA 1/4Vi BALSALL NOSEBATT COOL- RADII HG HOLES BULKHEAD1/Bc 1/4 T/I6DIAL16 BALSA HATa CROSS F-I ASIRO 035GRAIN 14 o oo _ 44 SOO MA I/IS PLY ILXMNr 7 MOTOM MOI*4TIF4G SCREWS 4-40 I/BA1/16 BALSACA 1/8 BALSA DOUBFuse CROSS GRAIN MOIS COSF Fl \I/S2PtY\ 1/16 BALSA SHEET 1/6 BALSA TOP TTOM DOUBLERS After pinning down spars trailing edge add ribs webs tip root Adding webs before top spar installed much easier wedging later 28 Model Aviation completed prototype wing horizontal vertical stabilizers main fuselage parts ready assembly wing has tip rib spaced closer shown plans scrap pieces spar material notches stackthe ribsforalignmentand sand match pattern spar trailing edge shear webs cut 4-in-wide balsa I/lB DIA MUSIC WIRE NGLD DOWN PBO1/32 BALSA SHEET3/16 SQ BALSA TOP B BOTTOMLEADING EDGE W-IW-2 FINGER GRIP 1/16 BALSA L8 BALSA CROSS BRACE W-3 D-2 -~ E di HARD WOOO O MOUNTS WING 11W1 PLAN 1/16 C GRA- BALSA RIBS HINGE TO SUIT W-I TOP 1/4x 1/16 SPRUCE SPARS W-IWI VIEW - _ 4 ___ TE EXTENSIONS TOP I/B BALSA BOTTOM 1/32 PLY 1/8SO HO BALSA LEADING EDGEj 1/2 STRIP AlL AGE1/16 BALSAFIN SLOT FINGER GRIPS / LEV2 REQ REQDETAILSHEETINGSTILIZE PLY-T -_____________________ REQ_______ CUT LINES I 2REO - ___ 2 REQ BC v--0 -REQ REQ- -2 AB1/B BALSA BLERS-REQSHEET 1/8 BALSAF-2 1/32 PLYALL RIBS 1/16 C GRAIN BALSAFIN 0OR7 ROYAL MILITARY CANGPY 1/8, 3A6 BALSA INSTRUMENTS DRAWN ON MOTOR SWITCH /B BALSA SHEET HITE PAPER B GLUED 1/8 I/4 HQ WOODI/B SQ BALSATO REAR OF PANEL WOOD SCREWSSTAB LEFRONT HOLD DOWNI/BBALSA 1A6 1/4 HO WOOD1/16HOLES CUT WITH --- / 7BALSA3/16 ID BRASS lUBE IiL~tW FUSELAGE SIDE.--ISHEET jL2zzrThVILWHRU STAB KiN KEYED 183" 4-1/2SCREWSI/16BALSA SIDESHINGE LINE A/1621/2RUD-ELEVRADIO COMR HATCH DETAIL HO WOODI/B SQ BALSA LONGERONS BALSA PUSHROOAND CROSS BRACES E VSUPPORTOPEN FRAMEWORK 11tH 1/B BALSA -V /SHEET I/B 4 BALSA / SHEET TO -4 ELEVATOR 332 BALSA SHEETPAPER CLIP JOINER BOTTOM TE PIN 1 TRAILING EDGE 3/16 SQ 1/4 SQ COCKPIT DETAIL BAa- RESTHEAD-REST I/8BALSAI/4BALSA 1/4DIA LBALSA INSTRUMENT PANEL 1/16 BALSA K7 KILL SWITCH 65 271-406 CHARGIN AMP JACK_ 0FUSE BAIT PACICSERVO ACTVD SW AS 275-046 MODEL AVIATION LAVLTh RJV 035 ELECTRIC --FORWARD HATCH DETAIL WING SPAN 44B WT 21 OZ AREA 290 SQ IN LOADING II OZ 0 2 3 4 5 K DESIGNED DRAWN BY KEN MARRON IThAj11113 low-wing design has always gripping model near center-of-gravity CG finger grips underside wing attempt solve problem prefer rudder-and-elevator configuration can made doubling dihedral angle 120 hinging rudder along dotted line shown plan Decide way want build model nowand lets begin building Wing construction Make rib template A2 plywood pin sheet of46 C grain stiff straight-grain balsa fas tening both onto cutting board method keeps template slipping helps ensure uniform results Have two scrap pieces 1/16 x -in spruce spar stock handy 14 ribs cut out place between two spar scraps check proper spar-notch fit ribs stacked between spar scraps add template front pile sand ribs its exact July1987 29 1/32 PLY DIHED BRACES Full-Size Plans Available Page 178 MT JOE bEjwMrnu last look centersection before sheeting hides Things note finger grips center rib spacing should adjusted now suit aileron servo outline Trim /i2 top bottom four ribs form W2s W3s eight 6 balsa vertical-grain shear webs cut 4-in-wide stock available otherwise half-width pieces cut 2- 3-in-wide stock butted tightly together will suffice top bottom trailing edge strips TE webs also cut 6 balsa Finally make dihedral braces Dl D2 A2 plywood rear brace D2 A6 narrower Dl allow 1A2in top bottom sheeting rest major parts made up way wing construction will move along quickly like use building board hinged middle order eliminate possibility building twist wing panels joined Prop up both sides hinged board two separate boards butted together middle dihedral brace Dl fits V flush surface both sides producing angle about 60 Cut wing pattern plans sheet fold half creasing along wing centerline Pin board cover plastic film Once wing finished can tape wing pattern back place using clear transparent tape entire model glued cyanoacrylate CyA unless otherwise specified wing built following se quence Bevel ends two pieces 6 x -in spruce spar material cut length Note bottom spar shorter top extends outer edge last Wl rib Join bevelled ends white glue pin spars place over plan Since hard push straight pins through hard spars use bulletin-board-type push pins positioned along length hold spars place semi-symmetrical airfoil its eas ier build wing bottom TE strips propped up shims run length TE Y16-sq piece front -in-sq toward rear edge work well Using few ribs spacers pin bottom TE strips place through shims glue butted edges together Starting tip wing panel glue down rib shear web TE web Continue until five Wl ribs wing half place Add top spars Y16-sq LE using white glue install front dihedral brace Dl clamp position clothespins remainder center-section pieces shimmed up 2 installed following order W2A W2B D2 white glue -in cross brace between ribs W2B lastly sections W3 ribs Space W3C sections suit aileron servo Finish installing TE webs top TE sheeting Add top bottom center-section sheeting Round off lead ing edge add wing tips finger grips remainder wing will completed after fuselage built Fuselage Cut sides two pieces medium-weight straight-grain V16 x 3 x 36-in balsa equal density will curve evenly Clamp both halves gether clothespins using balsa scraps prevent soft wood denting sand identical shape 30 Model Aviation positions Fl FlA P2 marked insides fuselage halves After squaring formers triangle glue half fuselage CyA Lon gerons doublers added before joining everthing must square After trial fit radio compartment floor position fuselage halves joined Use centerlines formers graph paper make alignment easier accurate Square up aides triangle right clamp place Temporarily wrap tape around body motor forget remove before running motor prevent sawdust entering half-round file remove just enough material nose doublers allow motorto slip through opening After white glue used attach radio compartment floor thoroughly dry pull nose clamp top bottom doublers place Flood jointswith CyA Nose details include locations OT doublers longerons hatch hold-down blocks radio compartment doublers forward hatch Cut out radio compartment doublers B remaining scrap Formers Fl F2 made hard -in balsa F lA either piece hard balsa two pieces -in balsa glued together four nose doublers cut medium-density -in balsa radio compartment floor /32 plywood Although cut out motor battery vent holes after fuselage constructed its easier sides flat cutting board sharpened piece ofMs ID brass tubing makes good tool Carefully mark off vertical centers Fl FlA F2 mark off locations inside fuselage halves Using triangle ensure accuracy glue formers Fl F2 half fuselage Orient former FlA its centerline faces toward rear Glue place white glue clamp together until dry Glue doublers B between formers making sure slit between wide enough accept floor Add Vs-in-sq balsa longerons attach -in nose doublers white glue Prepare other half fuselage gluing doublers B lon gerons leaving spaces formers F 1 F2 slide nose doublers Trial-fit sides together floor position sand down inside rear fuselage halves drawn together taper sfied fit disassemble pieces place bead white glue floor slots top FlA Fit sides floor back together Put C-clamps around fuselage F 1 F2 fuselage over plan orwith help some other alignment aid pull tail clamp position hespin everything lined up properly triangle shows sides square building board glue F 1 F2 tail place Let white glue dry thoroughly before continuing Draw line down center top bottom nose doublers help align ment Pull nose position doublers clamp place liberally hit joints CyA glue Finish fuselage adding 1/16 balsa top bottom nose area cross-grain sheeting -in balsa cross braces Use white glue three Vs x -in hardwood hatchhold-down blocks n rearwing-hold-down block Finally make up hatches 1/is balsa Nose Bulkhead Draw out bulkhead sheet l/~ plywood stock Cut slots drill holes cut out bulkhead itself During construction cover motor vent holes tape prevent sawdust getting remember remove tape before running motor Drill Yis-dia center hole motor first -in-dia motor mount ing holes Check see motor lines up properly air inlets formed drilling in-dia hole corner inlet filing out area between rattail file sanding block sand down front nose bulkhead will seat flush against front edges doublers must filed down slightly allow motor slip through opening Continued page 32 July 1987 31 strip aileron hardware epoxied grove filed along joint between trail ing edge balsa extension Light cloth epoxied overthe brasstublng adds strength rear vertical stab hanging over edge building board seated slot horizontal stab CyA two pieces together using triangle accuracy Additional strength obtained gluing piece 1/32 plywood underside TE balsa TE extension ply tapered blend sheeting finished framework readyforcovering should weigh about41/2 oz Pickone lighter covering materials keep overall weight down Atterthe model covered canopy attached fuselage narrow strip ironon covering material Im going flying words conjure up images battles balky engines instead carefree days field youre using McDaniel R/C NiStarterTM light plug NiStartersTM heavy-duty nicad power will provide up 50 reliable quick starts charge features famous Head LockTM adapter brass reinforcing ring around crimped end really extends its life works sideways inverted information well NiStarter works just go local flying field may have wait NiStartersTM always flying McDaniel RIC FIncorporated 12206 Guinevere Road enn Dale MD 20769 3011464-2260 Telex 287901 McD-UR K take hassle out hobby 32 Model Aviation Bolt motor bulkhead trialfit through opening Saturate front nose CyA glue slip motor bulkhead back position until adhesive sets up Unbolt motor round off corners nose fuselage eliminate boxy look Tail Section Build stabilizer fin over plan help square triangle assure 900 alignment glue fin its slot stab Attach assembled tail section fuselage using favorite method alignment round off edges Wing Mounting Check see wing rests properly its saddle add hold-down peg drilling A6-dla hole wing LE dihedral joint Cut 1in peg /16-dia music wire roughen up half file Drop some CyA glue hole roughened wire push wire hole Center wing saddle slide forward until tip music wire touches centerline F lA Make indentation Fl wire wing removed drill /~ hole through FlA Fl necessary elon gate hole rattail file proper wing seating Cut out two -in balsa TE exten sions wing back place fit between rear wing F2 glue wing Cut out 1 x 4-in piece of/32 plywood attach white glue underside TE balsa TE extension Clamp clothespins drying sanding block taper plywood blend center-section sheeting Drill holes through extensions sheet metal hold-down screws file grooves along joint TE extension piece accept brass tube strip aileron set Make up set roughen up brass tubes epoxy place Epoxy light fiberglass cloth fabric over added rein forcement Remember think light applying epoxy Align wing per fectly drill holes through holddown block accept sheet metal screws Covering Sand entire model lightly wipe down tack rag before covering lightweight material model presented covered Top Flite EconoKote has weight /s oz per sq ft After entire plane covered ailerons elevators hinged EconoKote follows Cut two strips covering material Ye x 12 Peel off backing overlap about adhesive sides facing other heatseal together Cut 1-in widths ailerons -in widths elevator apply surfaces over-and-under pattern Continued page 34 * Over $200000 prizes drawn * Guest appearance Ivan Kristensen *Trophies awanled foc best show best flyer best 4 cycle aircraft best sport scale aircraft *Frec intro lesson radio control flying *Fr sport shirt first 100 pilots *BARBQ cook Saturday evening *DOOr prizes spectators *Raffles airplane kits PARKING STEELES AVE IALBION RD C zREXDALE BLVD 0 HWY 401 Contact HUMBER VALLEY R/C FLYERS 105 Stiliwater Cr Willowdale Ont M2R-353 416 222-7509 ATT- CHEIC ON-Board Battery Tester Saves Time. Saves Models BATT-CHEK RX-1 7~$1495 NT P U Use TATON ES THRUST TESTER determine maximum engine output using different props fuel mixtures RPM levels Check engine aaainst another 34 Model Aviation NW Install RO Models Check receiver battery status press button Small Light /2 oz Precise Rugged ORDER TODAY dealer Protune corp t91 41462-6452 PO Boa 1808 Poughkeepsie NY 12601 OPTIMIZE YOUR ENGINES OUTPUT TATONES THRUST TESTER TATONE 30-13 ALUM MOTOR MOUNT ENGINE THROTTLE CONTROL SAFETY STARTING LOCK Canopy hope take time install headrest instrument panel well canopy since add lot appearance model radio compartment hatch screwed place trim bottom canopy conform its shape Cut away hatch covering interior details will placed before attaching After attaching interior details have someone hold canopy place attach hatch strips Y16-in-wide tape made covering materialfirst making sure theres no dust trapped inside Position tape carefully before applying heat method makes much stronger bond can achieved commercial trim stripping tape Radio installation elevator motor control servos mounted strips 46 plywood rest top doublers motor on-off microswitch Radio Shack #275-016 positioned left wall turned transmitter control stick trim tab full-throttle position Mark location attach switch epoxy use CyA glue chance will run inside switch render useless Motor installation Because battery pack permanently soldered motor cannot unplugged safety kill switch must installed system prevent accidental motor turn-on pos sible injury prop during trans porting range checking making adjustments Please eliminate it important safety feature constant torque small electric motor such should underestimated As further aid safety remove prop plane away flying field After charging jacks switches installed wired position receiver run its antenna back through fuse lage out hole near pushrod exit Position receiver battery pack get model balance correct CG tail built lightly shouldnt problem Charging vents fuselage sides above motor battery pack much cooling batteries flight dissipating heat during charging 6-amp 12-volt lead-acid start ing battery average condition has suf ficient charging capacity five six flights Little current drawn flight system no binding control surfaces pushrods 30 minutes flight time should expected 100 mAh battery using mini system Checking its condition between flights strongly advised however Trimming flying Elevator throw should about ailerons Continued page 136 FUNFLY 4- CYCLE EXTRAVAGANZA 2 cycle sport scale welcome JUNE 27 & 28 1987 Sponsored NATIONAL HOBBY stores CANADAS LARGEST 4CYCLE RALLY Toronto Ont Spectators $200 per person per day Pilot registration $1000 per day Noise limit 88db 7 meters enforeed DIRECT READING THRUST DIALONLY $6996 NOR THEA ST AEROD YNAMICS 61C LEBANON STREET ORD ME 04073 490-1881 TRAIN-AIR 20 TRAIN-AIR 40 SPORT-AIR 40 BEL-AIR 40 AO U See local dealer call us referral BEL-AIR 60 Safety Preston Continued page 22 wear gloves dust masks safety gog gles special clothing respirators Learn about chemicals materials what precautions should taken working Study warning labels have questions contact manu facturer ask safety data sheets can replace hazardous materials safer ones Store materials original containers keep covered Keep work area clean Wipe up flammable liquid spills immediately put soaked rags tightly-covered trash container Dispose chemicals properly have World famous kits Europe Large magnificent replicas over 4 feet long beautiful walnut mahogany planking fittings details exquisitely cast bronze brass rare hardwoods Large scale plans step-bystep instructions materials included VHS Video tapecassette howto build also available Send 64-pg full-color catalog $100 MODEL EXPO INC Dept MA-77S 23 Just Road Fairfield NJ 07007 Please send full color ship model catalog $100 enclosed Name questions about disposal contact local health fire department Dont work flammable materials near ignition source such open flame heater water heater cigarette suffer asthma emphysema aller gies heart condition check doctor about materials processes work pregnant ask doctor about continuing hobby also applies wives male hobbyists JP Space out sessions hobby give body time recover between pos sible exposures Ive previously mentioned number above DuPont safety tips dont think can hurt repeat continue see new comers enter hobby may aware some hazards associated products use Before leaving subject potentially haz ardous chemicals want mention two have seemingly similar names have very different properties methyl ethyl ketone MEK methyl ethyl ketone peroxide MEKP MEK solvent commonly used join styrene plastic products Chemically closely related ace tone addition being another common modeling solvent may well principal gredient wifes girlfriends nail polish remover recent letter claimed writer told never allow MEK come contact ones skin since readily ab sorbed ones system will stay until die letter-writer also stated told MEK will cause permanent blind ness upon contact eyeball latter statement leads believe confusing MEK MEKP Methyl ethyl ketone peroxide MEKP clear liquid hardener accompanies polyester resin strong oxidizer extreme care should taken avoid getting drop ones eye Such mishap could well result permanent eye damage blindness would rather get drop methyl ethyl ketone MEK eye does present anywhere near same hazard eyes does MEKP eyes immediately flushed water upon contact MEK no lasting damage should result Similarly am aware MEK presents hazard due skin contact Cyanoacrylate CyA glues have also con fused MEKP some letter-writers writers believed mere drop CyA eye would result instant blindness drop CyA glue eye may well cause eyelids become stuck together likely will very uncomfortable its likely will result permanent damage However would urge take precautions against getting anything eye days ever find time would like list various chemicals use hobby together associated hazards handling precautions Meanwhile urge take care John Preston 2812 Northampton St N W Washington DC 20015 Low Voltage/Marron Continued page 34 /I6 Make sure kill switch off position check controls working properly right direction Since plane light glides well its easy trim out standing top small hill firmly throwing power nose level slightly down wind Make whatever adjustments necessary before attempting powered flight Top Flite nylon 6 x 4 prop installed turn kill switch check proper control surface movement start motor Launch model good shove nose down prevent stall let fly straight level until picks up speed Start feeding some up elevator remembering small electric motor doesnt have much power snarling glow engine Low Voltage has gained some height heart starts beating nor mally again put through some maneuvers get feel control responses Make mental notes adjustments may needed After about 4 5 min will hear whine motor noticeably decrease pitch model wont climb Its time shut off mjttor prepare landing ailerons effective down stall speed experienced landing planes landing gear will pleasantly surprised ease accomplished responding advertisers mention read about ModelAviation 136 Model Aviation city State_____________________ Zip
Edition: Model Aviation - 1987/07
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 31, 32, 34, 136
NO OCR TEXT NO OCR TEXT Above inupy unu uuuput uuiau iuup wau umi uuu easily made See text fordetalis securing canopy finger grips greatly simpilfy gripping hand-iaunches slicker iook antenna runs through fuseiage before exiting Radio Shack microswitch left provides motor on/off control through radio very important also install manual motor kill switch well batteVs hard-wired plugged circuit manual switch safety feature should overlooked Finger grips wing make easier safer hold onto airplane Balanced comfortably between thumb index finger positive control launching 26 Model Aviation urapnic aetails personaiize your air piane case iettering pressuresensitive vinyl applied top MonoKate trim sheet lightening bolt MonoKote straightforward aileron control instaila trim striping tape Goldberg tion uses Du-Bro 1/2A aileron package 5ecause OT fla quietne. ana ama rne modei can have tooiing around iocal sports fields open area impromp tu flying sessions aimost hasslefree modei grooves weli dont expect verticai performance takeoff NO OCR TEXT time setting up approach model easily flown anyone average sport flying capabilitiesbeing Spars held plan bulletin board push pins line along top spar guide aligning shear webs gluing place trail ing edge propped up lengths balsa maneuverable stable predictable being fast simple design keeps construction time minimumand holds weight down completed ready-tofly model should weigh between 20 23 difficulties hand-launching rap SFSR TIP BOTTOM SFSR TIP / \ \ \ 3/32 BALSA KyHEET WHO Ps 1/16 BALSA VS GRAIl WEBS WI 1/IS BALSA SHEET TE -lOP 8 BOTTOM wI I/I6B WEBS 3/32 AILEF F DIHEDRAL BRACES WING TiP DETA L 1/B BALSA SHEET--BTOP~BOT NOSE SARADIO C SHEE F-Ir77 SIDE NOSEV DOUBLERSL2 F-IA 1/4Vi BALSALL NOSEBATT COOL- RADII HG HOLES BULKHEAD1/Bc 1/4 T/I6DIAL16 BALSA HATa CROSS F-I ASIRO 035GRAIN 14 o oo _ 44 SOO MA I/IS PLY ILXMNr 7 MOTOM MOI*4TIF4G SCREWS 4-40 I/BA1/16 BALSACA 1/8 BALSA DOUBFuse CROSS GRAIN MOIS COSF Fl \I/S2PtY\ 1/16 BALSA SHEET 1/6 BALSA TOP TTOM DOUBLERS After pinning down spars trailing edge add ribs webs tip root Adding webs before top spar installed much easier wedging later 28 Model Aviation completed prototype wing horizontal vertical stabilizers main fuselage parts ready assembly wing has tip rib spaced closer shown plans scrap pieces spar material notches stackthe ribsforalignmentand sand match pattern spar trailing edge shear webs cut 4-in-wide balsa I/lB DIA MUSIC WIRE NGLD DOWN PBO1/32 BALSA SHEET3/16 SQ BALSA TOP B BOTTOMLEADING EDGE W-IW-2 FINGER GRIP 1/16 BALSA L8 BALSA CROSS BRACE W-3 D-2 -~ E di HARD WOOO O MOUNTS WING 11W1 PLAN 1/16 C GRA- BALSA RIBS HINGE TO SUIT W-I TOP 1/4x 1/16 SPRUCE SPARS W-IWI VIEW - _ 4 ___ TE EXTENSIONS TOP I/B BALSA BOTTOM 1/32 PLY 1/8SO HO BALSA LEADING EDGEj 1/2 STRIP AlL AGE1/16 BALSAFIN SLOT FINGER GRIPS / LEV2 REQ REQDETAILSHEETINGSTILIZE PLY-T -_____________________ REQ_______ CUT LINES I 2REO - ___ 2 REQ BC v--0 -REQ REQ- -2 AB1/B BALSA BLERS-REQSHEET 1/8 BALSAF-2 1/32 PLYALL RIBS 1/16 C GRAIN BALSAFIN 0OR7 ROYAL MILITARY CANGPY 1/8, 3A6 BALSA INSTRUMENTS DRAWN ON MOTOR SWITCH /B BALSA SHEET HITE PAPER B GLUED 1/8 I/4 HQ WOODI/B SQ BALSATO REAR OF PANEL WOOD SCREWSSTAB LEFRONT HOLD DOWNI/BBALSA 1A6 1/4 HO WOOD1/16HOLES CUT WITH --- / 7BALSA3/16 ID BRASS lUBE IiL~tW FUSELAGE SIDE.--ISHEET jL2zzrThVILWHRU STAB KiN KEYED 183" 4-1/2SCREWSI/16BALSA SIDESHINGE LINE A/1621/2RUD-ELEVRADIO COMR HATCH DETAIL HO WOODI/B SQ BALSA LONGERONS BALSA PUSHROOAND CROSS BRACES E VSUPPORTOPEN FRAMEWORK 11tH 1/B BALSA -V /SHEET I/B 4 BALSA / SHEET TO -4 ELEVATOR 332 BALSA SHEETPAPER CLIP JOINER BOTTOM TE PIN 1 TRAILING EDGE 3/16 SQ 1/4 SQ COCKPIT DETAIL BAa- RESTHEAD-REST I/8BALSAI/4BALSA 1/4DIA LBALSA INSTRUMENT PANEL 1/16 BALSA K7 KILL SWITCH 65 271-406 CHARGIN AMP JACK_ 0FUSE BAIT PACICSERVO ACTVD SW AS 275-046 MODEL AVIATION LAVLTh RJV 035 ELECTRIC --FORWARD HATCH DETAIL WING SPAN 44B WT 21 OZ AREA 290 SQ IN LOADING II OZ 0 2 3 4 5 K DESIGNED DRAWN BY KEN MARRON IThAj11113 low-wing design has always gripping model near center-of-gravity CG finger grips underside wing attempt solve problem prefer rudder-and-elevator configuration can made doubling dihedral angle 120 hinging rudder along dotted line shown plan Decide way want build model nowand lets begin building Wing construction Make rib template A2 plywood pin sheet of46 C grain stiff straight-grain balsa fas tening both onto cutting board method keeps template slipping helps ensure uniform results Have two scrap pieces 1/16 x -in spruce spar stock handy 14 ribs cut out place between two spar scraps check proper spar-notch fit ribs stacked between spar scraps add template front pile sand ribs its exact July1987 29 1/32 PLY DIHED BRACES Full-Size Plans Available Page 178 MT JOE bEjwMrnu last look centersection before sheeting hides Things note finger grips center rib spacing should adjusted now suit aileron servo outline Trim /i2 top bottom four ribs form W2s W3s eight 6 balsa vertical-grain shear webs cut 4-in-wide stock available otherwise half-width pieces cut 2- 3-in-wide stock butted tightly together will suffice top bottom trailing edge strips TE webs also cut 6 balsa Finally make dihedral braces Dl D2 A2 plywood rear brace D2 A6 narrower Dl allow 1A2in top bottom sheeting rest major parts made up way wing construction will move along quickly like use building board hinged middle order eliminate possibility building twist wing panels joined Prop up both sides hinged board two separate boards butted together middle dihedral brace Dl fits V flush surface both sides producing angle about 60 Cut wing pattern plans sheet fold half creasing along wing centerline Pin board cover plastic film Once wing finished can tape wing pattern back place using clear transparent tape entire model glued cyanoacrylate CyA unless otherwise specified wing built following se quence Bevel ends two pieces 6 x -in spruce spar material cut length Note bottom spar shorter top extends outer edge last Wl rib Join bevelled ends white glue pin spars place over plan Since hard push straight pins through hard spars use bulletin-board-type push pins positioned along length hold spars place semi-symmetrical airfoil its eas ier build wing bottom TE strips propped up shims run length TE Y16-sq piece front -in-sq toward rear edge work well Using few ribs spacers pin bottom TE strips place through shims glue butted edges together Starting tip wing panel glue down rib shear web TE web Continue until five Wl ribs wing half place Add top spars Y16-sq LE using white glue install front dihedral brace Dl clamp position clothespins remainder center-section pieces shimmed up 2 installed following order W2A W2B D2 white glue -in cross brace between ribs W2B lastly sections W3 ribs Space W3C sections suit aileron servo Finish installing TE webs top TE sheeting Add top bottom center-section sheeting Round off lead ing edge add wing tips finger grips remainder wing will completed after fuselage built Fuselage Cut sides two pieces medium-weight straight-grain V16 x 3 x 36-in balsa equal density will curve evenly Clamp both halves gether clothespins using balsa scraps prevent soft wood denting sand identical shape 30 Model Aviation positions Fl FlA P2 marked insides fuselage halves After squaring formers triangle glue half fuselage CyA Lon gerons doublers added before joining everthing must square After trial fit radio compartment floor position fuselage halves joined Use centerlines formers graph paper make alignment easier accurate Square up aides triangle right clamp place Temporarily wrap tape around body motor forget remove before running motor prevent sawdust entering half-round file remove just enough material nose doublers allow motorto slip through opening After white glue used attach radio compartment floor thoroughly dry pull nose clamp top bottom doublers place Flood jointswith CyA Nose details include locations OT doublers longerons hatch hold-down blocks radio compartment doublers forward hatch Cut out radio compartment doublers B remaining scrap Formers Fl F2 made hard -in balsa F lA either piece hard balsa two pieces -in balsa glued together four nose doublers cut medium-density -in balsa radio compartment floor /32 plywood Although cut out motor battery vent holes after fuselage constructed its easier sides flat cutting board sharpened piece ofMs ID brass tubing makes good tool Carefully mark off vertical centers Fl FlA F2 mark off locations inside fuselage halves Using triangle ensure accuracy glue formers Fl F2 half fuselage Orient former FlA its centerline faces toward rear Glue place white glue clamp together until dry Glue doublers B between formers making sure slit between wide enough accept floor Add Vs-in-sq balsa longerons attach -in nose doublers white glue Prepare other half fuselage gluing doublers B lon gerons leaving spaces formers F 1 F2 slide nose doublers Trial-fit sides together floor position sand down inside rear fuselage halves drawn together taper sfied fit disassemble pieces place bead white glue floor slots top FlA Fit sides floor back together Put C-clamps around fuselage F 1 F2 fuselage over plan orwith help some other alignment aid pull tail clamp position hespin everything lined up properly triangle shows sides square building board glue F 1 F2 tail place Let white glue dry thoroughly before continuing Draw line down center top bottom nose doublers help align ment Pull nose position doublers clamp place liberally hit joints CyA glue Finish fuselage adding 1/16 balsa top bottom nose area cross-grain sheeting -in balsa cross braces Use white glue three Vs x -in hardwood hatchhold-down blocks n rearwing-hold-down block Finally make up hatches 1/is balsa Nose Bulkhead Draw out bulkhead sheet l/~ plywood stock Cut slots drill holes cut out bulkhead itself During construction cover motor vent holes tape prevent sawdust getting remember remove tape before running motor Drill Yis-dia center hole motor first -in-dia motor mount ing holes Check see motor lines up properly air inlets formed drilling in-dia hole corner inlet filing out area between rattail file sanding block sand down front nose bulkhead will seat flush against front edges doublers must filed down slightly allow motor slip through opening Continued page 32 July 1987 31 strip aileron hardware epoxied grove filed along joint between trail ing edge balsa extension Light cloth epoxied overthe brasstublng adds strength rear vertical stab hanging over edge building board seated slot horizontal stab CyA two pieces together using triangle accuracy Additional strength obtained gluing piece 1/32 plywood underside TE balsa TE extension ply tapered blend sheeting finished framework readyforcovering should weigh about41/2 oz Pickone lighter covering materials keep overall weight down Atterthe model covered canopy attached fuselage narrow strip ironon covering material Im going flying words conjure up images battles balky engines instead carefree days field youre using McDaniel R/C NiStarterTM light plug NiStartersTM heavy-duty nicad power will provide up 50 reliable quick starts charge features famous Head LockTM adapter brass reinforcing ring around crimped end really extends its life works sideways inverted information well NiStarter works just go local flying field may have wait NiStartersTM always flying McDaniel RIC FIncorporated 12206 Guinevere Road enn Dale MD 20769 3011464-2260 Telex 287901 McD-UR K take hassle out hobby 32 Model Aviation Bolt motor bulkhead trialfit through opening Saturate front nose CyA glue slip motor bulkhead back position until adhesive sets up Unbolt motor round off corners nose fuselage eliminate boxy look Tail Section Build stabilizer fin over plan help square triangle assure 900 alignment glue fin its slot stab Attach assembled tail section fuselage using favorite method alignment round off edges Wing Mounting Check see wing rests properly its saddle add hold-down peg drilling A6-dla hole wing LE dihedral joint Cut 1in peg /16-dia music wire roughen up half file Drop some CyA glue hole roughened wire push wire hole Center wing saddle slide forward until tip music wire touches centerline F lA Make indentation Fl wire wing removed drill /~ hole through FlA Fl necessary elon gate hole rattail file proper wing seating Cut out two -in balsa TE exten sions wing back place fit between rear wing F2 glue wing Cut out 1 x 4-in piece of/32 plywood attach white glue underside TE balsa TE extension Clamp clothespins drying sanding block taper plywood blend center-section sheeting Drill holes through extensions sheet metal hold-down screws file grooves along joint TE extension piece accept brass tube strip aileron set Make up set roughen up brass tubes epoxy place Epoxy light fiberglass cloth fabric over added rein forcement Remember think light applying epoxy Align wing per fectly drill holes through holddown block accept sheet metal screws Covering Sand entire model lightly wipe down tack rag before covering lightweight material model presented covered Top Flite EconoKote has weight /s oz per sq ft After entire plane covered ailerons elevators hinged EconoKote follows Cut two strips covering material Ye x 12 Peel off backing overlap about adhesive sides facing other heatseal together Cut 1-in widths ailerons -in widths elevator apply surfaces over-and-under pattern Continued page 34 * Over $200000 prizes drawn * Guest appearance Ivan Kristensen *Trophies awanled foc best show best flyer best 4 cycle aircraft best sport scale aircraft *Frec intro lesson radio control flying *Fr sport shirt first 100 pilots *BARBQ cook Saturday evening *DOOr prizes spectators *Raffles airplane kits PARKING STEELES AVE IALBION RD C zREXDALE BLVD 0 HWY 401 Contact HUMBER VALLEY R/C FLYERS 105 Stiliwater Cr Willowdale Ont M2R-353 416 222-7509 ATT- CHEIC ON-Board Battery Tester Saves Time. Saves Models BATT-CHEK RX-1 7~$1495 NT P U Use TATON ES THRUST TESTER determine maximum engine output using different props fuel mixtures RPM levels Check engine aaainst another 34 Model Aviation NW Install RO Models Check receiver battery status press button Small Light /2 oz Precise Rugged ORDER TODAY dealer Protune corp t91 41462-6452 PO Boa 1808 Poughkeepsie NY 12601 OPTIMIZE YOUR ENGINES OUTPUT TATONES THRUST TESTER TATONE 30-13 ALUM MOTOR MOUNT ENGINE THROTTLE CONTROL SAFETY STARTING LOCK Canopy hope take time install headrest instrument panel well canopy since add lot appearance model radio compartment hatch screwed place trim bottom canopy conform its shape Cut away hatch covering interior details will placed before attaching After attaching interior details have someone hold canopy place attach hatch strips Y16-in-wide tape made covering materialfirst making sure theres no dust trapped inside Position tape carefully before applying heat method makes much stronger bond can achieved commercial trim stripping tape Radio installation elevator motor control servos mounted strips 46 plywood rest top doublers motor on-off microswitch Radio Shack #275-016 positioned left wall turned transmitter control stick trim tab full-throttle position Mark location attach switch epoxy use CyA glue chance will run inside switch render useless Motor installation Because battery pack permanently soldered motor cannot unplugged safety kill switch must installed system prevent accidental motor turn-on pos sible injury prop during trans porting range checking making adjustments Please eliminate it important safety feature constant torque small electric motor such should underestimated As further aid safety remove prop plane away flying field After charging jacks switches installed wired position receiver run its antenna back through fuse lage out hole near pushrod exit Position receiver battery pack get model balance correct CG tail built lightly shouldnt problem Charging vents fuselage sides above motor battery pack much cooling batteries flight dissipating heat during charging 6-amp 12-volt lead-acid start ing battery average condition has suf ficient charging capacity five six flights Little current drawn flight system no binding control surfaces pushrods 30 minutes flight time should expected 100 mAh battery using mini system Checking its condition between flights strongly advised however Trimming flying Elevator throw should about ailerons Continued page 136 FUNFLY 4- CYCLE EXTRAVAGANZA 2 cycle sport scale welcome JUNE 27 & 28 1987 Sponsored NATIONAL HOBBY stores CANADAS LARGEST 4CYCLE RALLY Toronto Ont Spectators $200 per person per day Pilot registration $1000 per day Noise limit 88db 7 meters enforeed DIRECT READING THRUST DIALONLY $6996 NOR THEA ST AEROD YNAMICS 61C LEBANON STREET ORD ME 04073 490-1881 TRAIN-AIR 20 TRAIN-AIR 40 SPORT-AIR 40 BEL-AIR 40 AO U See local dealer call us referral BEL-AIR 60 Safety Preston Continued page 22 wear gloves dust masks safety gog gles special clothing respirators Learn about chemicals materials what precautions should taken working Study warning labels have questions contact manu facturer ask safety data sheets can replace hazardous materials safer ones Store materials original containers keep covered Keep work area clean Wipe up flammable liquid spills immediately put soaked rags tightly-covered trash container Dispose chemicals properly have World famous kits Europe Large magnificent replicas over 4 feet long beautiful walnut mahogany planking fittings details exquisitely cast bronze brass rare hardwoods Large scale plans step-bystep instructions materials included VHS Video tapecassette howto build also available Send 64-pg full-color catalog $100 MODEL EXPO INC Dept MA-77S 23 Just Road Fairfield NJ 07007 Please send full color ship model catalog $100 enclosed Name questions about disposal contact local health fire department Dont work flammable materials near ignition source such open flame heater water heater cigarette suffer asthma emphysema aller gies heart condition check doctor about materials processes work pregnant ask doctor about continuing hobby also applies wives male hobbyists JP Space out sessions hobby give body time recover between pos sible exposures Ive previously mentioned number above DuPont safety tips dont think can hurt repeat continue see new comers enter hobby may aware some hazards associated products use Before leaving subject potentially haz ardous chemicals want mention two have seemingly similar names have very different properties methyl ethyl ketone MEK methyl ethyl ketone peroxide MEKP MEK solvent commonly used join styrene plastic products Chemically closely related ace tone addition being another common modeling solvent may well principal gredient wifes girlfriends nail polish remover recent letter claimed writer told never allow MEK come contact ones skin since readily ab sorbed ones system will stay until die letter-writer also stated told MEK will cause permanent blind ness upon contact eyeball latter statement leads believe confusing MEK MEKP Methyl ethyl ketone peroxide MEKP clear liquid hardener accompanies polyester resin strong oxidizer extreme care should taken avoid getting drop ones eye Such mishap could well result permanent eye damage blindness would rather get drop methyl ethyl ketone MEK eye does present anywhere near same hazard eyes does MEKP eyes immediately flushed water upon contact MEK no lasting damage should result Similarly am aware MEK presents hazard due skin contact Cyanoacrylate CyA glues have also con fused MEKP some letter-writers writers believed mere drop CyA eye would result instant blindness drop CyA glue eye may well cause eyelids become stuck together likely will very uncomfortable its likely will result permanent damage However would urge take precautions against getting anything eye days ever find time would like list various chemicals use hobby together associated hazards handling precautions Meanwhile urge take care John Preston 2812 Northampton St N W Washington DC 20015 Low Voltage/Marron Continued page 34 /I6 Make sure kill switch off position check controls working properly right direction Since plane light glides well its easy trim out standing top small hill firmly throwing power nose level slightly down wind Make whatever adjustments necessary before attempting powered flight Top Flite nylon 6 x 4 prop installed turn kill switch check proper control surface movement start motor Launch model good shove nose down prevent stall let fly straight level until picks up speed Start feeding some up elevator remembering small electric motor doesnt have much power snarling glow engine Low Voltage has gained some height heart starts beating nor mally again put through some maneuvers get feel control responses Make mental notes adjustments may needed After about 4 5 min will hear whine motor noticeably decrease pitch model wont climb Its time shut off mjttor prepare landing ailerons effective down stall speed experienced landing planes landing gear will pleasantly surprised ease accomplished responding advertisers mention read about ModelAviation 136 Model Aviation city State_____________________ Zip
Edition: Model Aviation - 1987/07
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 31, 32, 34, 136
NO OCR TEXT NO OCR TEXT Above inupy unu uuuput uuiau iuup wau umi uuu easily made See text fordetalis securing canopy finger grips greatly simpilfy gripping hand-iaunches slicker iook antenna runs through fuseiage before exiting Radio Shack microswitch left provides motor on/off control through radio very important also install manual motor kill switch well batteVs hard-wired plugged circuit manual switch safety feature should overlooked Finger grips wing make easier safer hold onto airplane Balanced comfortably between thumb index finger positive control launching 26 Model Aviation urapnic aetails personaiize your air piane case iettering pressuresensitive vinyl applied top MonoKate trim sheet lightening bolt MonoKote straightforward aileron control instaila trim striping tape Goldberg tion uses Du-Bro 1/2A aileron package 5ecause OT fla quietne. ana ama rne modei can have tooiing around iocal sports fields open area impromp tu flying sessions aimost hasslefree modei grooves weli dont expect verticai performance takeoff NO OCR TEXT time setting up approach model easily flown anyone average sport flying capabilitiesbeing Spars held plan bulletin board push pins line along top spar guide aligning shear webs gluing place trail ing edge propped up lengths balsa maneuverable stable predictable being fast simple design keeps construction time minimumand holds weight down completed ready-tofly model should weigh between 20 23 difficulties hand-launching rap SFSR TIP BOTTOM SFSR TIP / \ \ \ 3/32 BALSA KyHEET WHO Ps 1/16 BALSA VS GRAIl WEBS WI 1/IS BALSA SHEET TE -lOP 8 BOTTOM wI I/I6B WEBS 3/32 AILEF F DIHEDRAL BRACES WING TiP DETA L 1/B BALSA SHEET--BTOP~BOT NOSE SARADIO C SHEE F-Ir77 SIDE NOSEV DOUBLERSL2 F-IA 1/4Vi BALSALL NOSEBATT COOL- RADII HG HOLES BULKHEAD1/Bc 1/4 T/I6DIAL16 BALSA HATa CROSS F-I ASIRO 035GRAIN 14 o oo _ 44 SOO MA I/IS PLY ILXMNr 7 MOTOM MOI*4TIF4G SCREWS 4-40 I/BA1/16 BALSACA 1/8 BALSA DOUBFuse CROSS GRAIN MOIS COSF Fl \I/S2PtY\ 1/16 BALSA SHEET 1/6 BALSA TOP TTOM DOUBLERS After pinning down spars trailing edge add ribs webs tip root Adding webs before top spar installed much easier wedging later 28 Model Aviation completed prototype wing horizontal vertical stabilizers main fuselage parts ready assembly wing has tip rib spaced closer shown plans scrap pieces spar material notches stackthe ribsforalignmentand sand match pattern spar trailing edge shear webs cut 4-in-wide balsa I/lB DIA MUSIC WIRE NGLD DOWN PBO1/32 BALSA SHEET3/16 SQ BALSA TOP B BOTTOMLEADING EDGE W-IW-2 FINGER GRIP 1/16 BALSA L8 BALSA CROSS BRACE W-3 D-2 -~ E di HARD WOOO O MOUNTS WING 11W1 PLAN 1/16 C GRA- BALSA RIBS HINGE TO SUIT W-I TOP 1/4x 1/16 SPRUCE SPARS W-IWI VIEW - _ 4 ___ TE EXTENSIONS TOP I/B BALSA BOTTOM 1/32 PLY 1/8SO HO BALSA LEADING EDGEj 1/2 STRIP AlL AGE1/16 BALSAFIN SLOT FINGER GRIPS / LEV2 REQ REQDETAILSHEETINGSTILIZE PLY-T -_____________________ REQ_______ CUT LINES I 2REO - ___ 2 REQ BC v--0 -REQ REQ- -2 AB1/B BALSA BLERS-REQSHEET 1/8 BALSAF-2 1/32 PLYALL RIBS 1/16 C GRAIN BALSAFIN 0OR7 ROYAL MILITARY CANGPY 1/8, 3A6 BALSA INSTRUMENTS DRAWN ON MOTOR SWITCH /B BALSA SHEET HITE PAPER B GLUED 1/8 I/4 HQ WOODI/B SQ BALSATO REAR OF PANEL WOOD SCREWSSTAB LEFRONT HOLD DOWNI/BBALSA 1A6 1/4 HO WOOD1/16HOLES CUT WITH --- / 7BALSA3/16 ID BRASS lUBE IiL~tW FUSELAGE SIDE.--ISHEET jL2zzrThVILWHRU STAB KiN KEYED 183" 4-1/2SCREWSI/16BALSA SIDESHINGE LINE A/1621/2RUD-ELEVRADIO COMR HATCH DETAIL HO WOODI/B SQ BALSA LONGERONS BALSA PUSHROOAND CROSS BRACES E VSUPPORTOPEN FRAMEWORK 11tH 1/B BALSA -V /SHEET I/B 4 BALSA / SHEET TO -4 ELEVATOR 332 BALSA SHEETPAPER CLIP JOINER BOTTOM TE PIN 1 TRAILING EDGE 3/16 SQ 1/4 SQ COCKPIT DETAIL BAa- RESTHEAD-REST I/8BALSAI/4BALSA 1/4DIA LBALSA INSTRUMENT PANEL 1/16 BALSA K7 KILL SWITCH 65 271-406 CHARGIN AMP JACK_ 0FUSE BAIT PACICSERVO ACTVD SW AS 275-046 MODEL AVIATION LAVLTh RJV 035 ELECTRIC --FORWARD HATCH DETAIL WING SPAN 44B WT 21 OZ AREA 290 SQ IN LOADING II OZ 0 2 3 4 5 K DESIGNED DRAWN BY KEN MARRON IThAj11113 low-wing design has always gripping model near center-of-gravity CG finger grips underside wing attempt solve problem prefer rudder-and-elevator configuration can made doubling dihedral angle 120 hinging rudder along dotted line shown plan Decide way want build model nowand lets begin building Wing construction Make rib template A2 plywood pin sheet of46 C grain stiff straight-grain balsa fas tening both onto cutting board method keeps template slipping helps ensure uniform results Have two scrap pieces 1/16 x -in spruce spar stock handy 14 ribs cut out place between two spar scraps check proper spar-notch fit ribs stacked between spar scraps add template front pile sand ribs its exact July1987 29 1/32 PLY DIHED BRACES Full-Size Plans Available Page 178 MT JOE bEjwMrnu last look centersection before sheeting hides Things note finger grips center rib spacing should adjusted now suit aileron servo outline Trim /i2 top bottom four ribs form W2s W3s eight 6 balsa vertical-grain shear webs cut 4-in-wide stock available otherwise half-width pieces cut 2- 3-in-wide stock butted tightly together will suffice top bottom trailing edge strips TE webs also cut 6 balsa Finally make dihedral braces Dl D2 A2 plywood rear brace D2 A6 narrower Dl allow 1A2in top bottom sheeting rest major parts made up way wing construction will move along quickly like use building board hinged middle order eliminate possibility building twist wing panels joined Prop up both sides hinged board two separate boards butted together middle dihedral brace Dl fits V flush surface both sides producing angle about 60 Cut wing pattern plans sheet fold half creasing along wing centerline Pin board cover plastic film Once wing finished can tape wing pattern back place using clear transparent tape entire model glued cyanoacrylate CyA unless otherwise specified wing built following se quence Bevel ends two pieces 6 x -in spruce spar material cut length Note bottom spar shorter top extends outer edge last Wl rib Join bevelled ends white glue pin spars place over plan Since hard push straight pins through hard spars use bulletin-board-type push pins positioned along length hold spars place semi-symmetrical airfoil its eas ier build wing bottom TE strips propped up shims run length TE Y16-sq piece front -in-sq toward rear edge work well Using few ribs spacers pin bottom TE strips place through shims glue butted edges together Starting tip wing panel glue down rib shear web TE web Continue until five Wl ribs wing half place Add top spars Y16-sq LE using white glue install front dihedral brace Dl clamp position clothespins remainder center-section pieces shimmed up 2 installed following order W2A W2B D2 white glue -in cross brace between ribs W2B lastly sections W3 ribs Space W3C sections suit aileron servo Finish installing TE webs top TE sheeting Add top bottom center-section sheeting Round off lead ing edge add wing tips finger grips remainder wing will completed after fuselage built Fuselage Cut sides two pieces medium-weight straight-grain V16 x 3 x 36-in balsa equal density will curve evenly Clamp both halves gether clothespins using balsa scraps prevent soft wood denting sand identical shape 30 Model Aviation positions Fl FlA P2 marked insides fuselage halves After squaring formers triangle glue half fuselage CyA Lon gerons doublers added before joining everthing must square After trial fit radio compartment floor position fuselage halves joined Use centerlines formers graph paper make alignment easier accurate Square up aides triangle right clamp place Temporarily wrap tape around body motor forget remove before running motor prevent sawdust entering half-round file remove just enough material nose doublers allow motorto slip through opening After white glue used attach radio compartment floor thoroughly dry pull nose clamp top bottom doublers place Flood jointswith CyA Nose details include locations OT doublers longerons hatch hold-down blocks radio compartment doublers forward hatch Cut out radio compartment doublers B remaining scrap Formers Fl F2 made hard -in balsa F lA either piece hard balsa two pieces -in balsa glued together four nose doublers cut medium-density -in balsa radio compartment floor /32 plywood Although cut out motor battery vent holes after fuselage constructed its easier sides flat cutting board sharpened piece ofMs ID brass tubing makes good tool Carefully mark off vertical centers Fl FlA F2 mark off locations inside fuselage halves Using triangle ensure accuracy glue formers Fl F2 half fuselage Orient former FlA its centerline faces toward rear Glue place white glue clamp together until dry Glue doublers B between formers making sure slit between wide enough accept floor Add Vs-in-sq balsa longerons attach -in nose doublers white glue Prepare other half fuselage gluing doublers B lon gerons leaving spaces formers F 1 F2 slide nose doublers Trial-fit sides together floor position sand down inside rear fuselage halves drawn together taper sfied fit disassemble pieces place bead white glue floor slots top FlA Fit sides floor back together Put C-clamps around fuselage F 1 F2 fuselage over plan orwith help some other alignment aid pull tail clamp position hespin everything lined up properly triangle shows sides square building board glue F 1 F2 tail place Let white glue dry thoroughly before continuing Draw line down center top bottom nose doublers help align ment Pull nose position doublers clamp place liberally hit joints CyA glue Finish fuselage adding 1/16 balsa top bottom nose area cross-grain sheeting -in balsa cross braces Use white glue three Vs x -in hardwood hatchhold-down blocks n rearwing-hold-down block Finally make up hatches 1/is balsa Nose Bulkhead Draw out bulkhead sheet l/~ plywood stock Cut slots drill holes cut out bulkhead itself During construction cover motor vent holes tape prevent sawdust getting remember remove tape before running motor Drill Yis-dia center hole motor first -in-dia motor mount ing holes Check see motor lines up properly air inlets formed drilling in-dia hole corner inlet filing out area between rattail file sanding block sand down front nose bulkhead will seat flush against front edges doublers must filed down slightly allow motor slip through opening Continued page 32 July 1987 31 strip aileron hardware epoxied grove filed along joint between trail ing edge balsa extension Light cloth epoxied overthe brasstublng adds strength rear vertical stab hanging over edge building board seated slot horizontal stab CyA two pieces together using triangle accuracy Additional strength obtained gluing piece 1/32 plywood underside TE balsa TE extension ply tapered blend sheeting finished framework readyforcovering should weigh about41/2 oz Pickone lighter covering materials keep overall weight down Atterthe model covered canopy attached fuselage narrow strip ironon covering material Im going flying words conjure up images battles balky engines instead carefree days field youre using McDaniel R/C NiStarterTM light plug NiStartersTM heavy-duty nicad power will provide up 50 reliable quick starts charge features famous Head LockTM adapter brass reinforcing ring around crimped end really extends its life works sideways inverted information well NiStarter works just go local flying field may have wait NiStartersTM always flying McDaniel RIC FIncorporated 12206 Guinevere Road enn Dale MD 20769 3011464-2260 Telex 287901 McD-UR K take hassle out hobby 32 Model Aviation Bolt motor bulkhead trialfit through opening Saturate front nose CyA glue slip motor bulkhead back position until adhesive sets up Unbolt motor round off corners nose fuselage eliminate boxy look Tail Section Build stabilizer fin over plan help square triangle assure 900 alignment glue fin its slot stab Attach assembled tail section fuselage using favorite method alignment round off edges Wing Mounting Check see wing rests properly its saddle add hold-down peg drilling A6-dla hole wing LE dihedral joint Cut 1in peg /16-dia music wire roughen up half file Drop some CyA glue hole roughened wire push wire hole Center wing saddle slide forward until tip music wire touches centerline F lA Make indentation Fl wire wing removed drill /~ hole through FlA Fl necessary elon gate hole rattail file proper wing seating Cut out two -in balsa TE exten sions wing back place fit between rear wing F2 glue wing Cut out 1 x 4-in piece of/32 plywood attach white glue underside TE balsa TE extension Clamp clothespins drying sanding block taper plywood blend center-section sheeting Drill holes through extensions sheet metal hold-down screws file grooves along joint TE extension piece accept brass tube strip aileron set Make up set roughen up brass tubes epoxy place Epoxy light fiberglass cloth fabric over added rein forcement Remember think light applying epoxy Align wing per fectly drill holes through holddown block accept sheet metal screws Covering Sand entire model lightly wipe down tack rag before covering lightweight material model presented covered Top Flite EconoKote has weight /s oz per sq ft After entire plane covered ailerons elevators hinged EconoKote follows Cut two strips covering material Ye x 12 Peel off backing overlap about adhesive sides facing other heatseal together Cut 1-in widths ailerons -in widths elevator apply surfaces over-and-under pattern Continued page 34 * Over $200000 prizes drawn * Guest appearance Ivan Kristensen *Trophies awanled foc best show best flyer best 4 cycle aircraft best sport scale aircraft *Frec intro lesson radio control flying *Fr sport shirt first 100 pilots *BARBQ cook Saturday evening *DOOr prizes spectators *Raffles airplane kits PARKING STEELES AVE IALBION RD C zREXDALE BLVD 0 HWY 401 Contact HUMBER VALLEY R/C FLYERS 105 Stiliwater Cr Willowdale Ont M2R-353 416 222-7509 ATT- CHEIC ON-Board Battery Tester Saves Time. Saves Models BATT-CHEK RX-1 7~$1495 NT P U Use TATON ES THRUST TESTER determine maximum engine output using different props fuel mixtures RPM levels Check engine aaainst another 34 Model Aviation NW Install RO Models Check receiver battery status press button Small Light /2 oz Precise Rugged ORDER TODAY dealer Protune corp t91 41462-6452 PO Boa 1808 Poughkeepsie NY 12601 OPTIMIZE YOUR ENGINES OUTPUT TATONES THRUST TESTER TATONE 30-13 ALUM MOTOR MOUNT ENGINE THROTTLE CONTROL SAFETY STARTING LOCK Canopy hope take time install headrest instrument panel well canopy since add lot appearance model radio compartment hatch screwed place trim bottom canopy conform its shape Cut away hatch covering interior details will placed before attaching After attaching interior details have someone hold canopy place attach hatch strips Y16-in-wide tape made covering materialfirst making sure theres no dust trapped inside Position tape carefully before applying heat method makes much stronger bond can achieved commercial trim stripping tape Radio installation elevator motor control servos mounted strips 46 plywood rest top doublers motor on-off microswitch Radio Shack #275-016 positioned left wall turned transmitter control stick trim tab full-throttle position Mark location attach switch epoxy use CyA glue chance will run inside switch render useless Motor installation Because battery pack permanently soldered motor cannot unplugged safety kill switch must installed system prevent accidental motor turn-on pos sible injury prop during trans porting range checking making adjustments Please eliminate it important safety feature constant torque small electric motor such should underestimated As further aid safety remove prop plane away flying field After charging jacks switches installed wired position receiver run its antenna back through fuse lage out hole near pushrod exit Position receiver battery pack get model balance correct CG tail built lightly shouldnt problem Charging vents fuselage sides above motor battery pack much cooling batteries flight dissipating heat during charging 6-amp 12-volt lead-acid start ing battery average condition has suf ficient charging capacity five six flights Little current drawn flight system no binding control surfaces pushrods 30 minutes flight time should expected 100 mAh battery using mini system Checking its condition between flights strongly advised however Trimming flying Elevator throw should about ailerons Continued page 136 FUNFLY 4- CYCLE EXTRAVAGANZA 2 cycle sport scale welcome JUNE 27 & 28 1987 Sponsored NATIONAL HOBBY stores CANADAS LARGEST 4CYCLE RALLY Toronto Ont Spectators $200 per person per day Pilot registration $1000 per day Noise limit 88db 7 meters enforeed DIRECT READING THRUST DIALONLY $6996 NOR THEA ST AEROD YNAMICS 61C LEBANON STREET ORD ME 04073 490-1881 TRAIN-AIR 20 TRAIN-AIR 40 SPORT-AIR 40 BEL-AIR 40 AO U See local dealer call us referral BEL-AIR 60 Safety Preston Continued page 22 wear gloves dust masks safety gog gles special clothing respirators Learn about chemicals materials what precautions should taken working Study warning labels have questions contact manu facturer ask safety data sheets can replace hazardous materials safer ones Store materials original containers keep covered Keep work area clean Wipe up flammable liquid spills immediately put soaked rags tightly-covered trash container Dispose chemicals properly have World famous kits Europe Large magnificent replicas over 4 feet long beautiful walnut mahogany planking fittings details exquisitely cast bronze brass rare hardwoods Large scale plans step-bystep instructions materials included VHS Video tapecassette howto build also available Send 64-pg full-color catalog $100 MODEL EXPO INC Dept MA-77S 23 Just Road Fairfield NJ 07007 Please send full color ship model catalog $100 enclosed Name questions about disposal contact local health fire department Dont work flammable materials near ignition source such open flame heater water heater cigarette suffer asthma emphysema aller gies heart condition check doctor about materials processes work pregnant ask doctor about continuing hobby also applies wives male hobbyists JP Space out sessions hobby give body time recover between pos sible exposures Ive previously mentioned number above DuPont safety tips dont think can hurt repeat continue see new comers enter hobby may aware some hazards associated products use Before leaving subject potentially haz ardous chemicals want mention two have seemingly similar names have very different properties methyl ethyl ketone MEK methyl ethyl ketone peroxide MEKP MEK solvent commonly used join styrene plastic products Chemically closely related ace tone addition being another common modeling solvent may well principal gredient wifes girlfriends nail polish remover recent letter claimed writer told never allow MEK come contact ones skin since readily ab sorbed ones system will stay until die letter-writer also stated told MEK will cause permanent blind ness upon contact eyeball latter statement leads believe confusing MEK MEKP Methyl ethyl ketone peroxide MEKP clear liquid hardener accompanies polyester resin strong oxidizer extreme care should taken avoid getting drop ones eye Such mishap could well result permanent eye damage blindness would rather get drop methyl ethyl ketone MEK eye does present anywhere near same hazard eyes does MEKP eyes immediately flushed water upon contact MEK no lasting damage should result Similarly am aware MEK presents hazard due skin contact Cyanoacrylate CyA glues have also con fused MEKP some letter-writers writers believed mere drop CyA eye would result instant blindness drop CyA glue eye may well cause eyelids become stuck together likely will very uncomfortable its likely will result permanent damage However would urge take precautions against getting anything eye days ever find time would like list various chemicals use hobby together associated hazards handling precautions Meanwhile urge take care John Preston 2812 Northampton St N W Washington DC 20015 Low Voltage/Marron Continued page 34 /I6 Make sure kill switch off position check controls working properly right direction Since plane light glides well its easy trim out standing top small hill firmly throwing power nose level slightly down wind Make whatever adjustments necessary before attempting powered flight Top Flite nylon 6 x 4 prop installed turn kill switch check proper control surface movement start motor Launch model good shove nose down prevent stall let fly straight level until picks up speed Start feeding some up elevator remembering small electric motor doesnt have much power snarling glow engine Low Voltage has gained some height heart starts beating nor mally again put through some maneuvers get feel control responses Make mental notes adjustments may needed After about 4 5 min will hear whine motor noticeably decrease pitch model wont climb Its time shut off mjttor prepare landing ailerons effective down stall speed experienced landing planes landing gear will pleasantly surprised ease accomplished responding advertisers mention read about ModelAviation 136 Model Aviation city State_____________________ Zip
Edition: Model Aviation - 1987/07
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 31, 32, 34, 136
NO OCR TEXT NO OCR TEXT Above inupy unu uuuput uuiau iuup wau umi uuu easily made See text fordetalis securing canopy finger grips greatly simpilfy gripping hand-iaunches slicker iook antenna runs through fuseiage before exiting Radio Shack microswitch left provides motor on/off control through radio very important also install manual motor kill switch well batteVs hard-wired plugged circuit manual switch safety feature should overlooked Finger grips wing make easier safer hold onto airplane Balanced comfortably between thumb index finger positive control launching 26 Model Aviation urapnic aetails personaiize your air piane case iettering pressuresensitive vinyl applied top MonoKate trim sheet lightening bolt MonoKote straightforward aileron control instaila trim striping tape Goldberg tion uses Du-Bro 1/2A aileron package 5ecause OT fla quietne. ana ama rne modei can have tooiing around iocal sports fields open area impromp tu flying sessions aimost hasslefree modei grooves weli dont expect verticai performance takeoff NO OCR TEXT time setting up approach model easily flown anyone average sport flying capabilitiesbeing Spars held plan bulletin board push pins line along top spar guide aligning shear webs gluing place trail ing edge propped up lengths balsa maneuverable stable predictable being fast simple design keeps construction time minimumand holds weight down completed ready-tofly model should weigh between 20 23 difficulties hand-launching rap SFSR TIP BOTTOM SFSR TIP / \ \ \ 3/32 BALSA KyHEET WHO Ps 1/16 BALSA VS GRAIl WEBS WI 1/IS BALSA SHEET TE -lOP 8 BOTTOM wI I/I6B WEBS 3/32 AILEF F DIHEDRAL BRACES WING TiP DETA L 1/B BALSA SHEET--BTOP~BOT NOSE SARADIO C SHEE F-Ir77 SIDE NOSEV DOUBLERSL2 F-IA 1/4Vi BALSALL NOSEBATT COOL- RADII HG HOLES BULKHEAD1/Bc 1/4 T/I6DIAL16 BALSA HATa CROSS F-I ASIRO 035GRAIN 14 o oo _ 44 SOO MA I/IS PLY ILXMNr 7 MOTOM MOI*4TIF4G SCREWS 4-40 I/BA1/16 BALSACA 1/8 BALSA DOUBFuse CROSS GRAIN MOIS COSF Fl \I/S2PtY\ 1/16 BALSA SHEET 1/6 BALSA TOP TTOM DOUBLERS After pinning down spars trailing edge add ribs webs tip root Adding webs before top spar installed much easier wedging later 28 Model Aviation completed prototype wing horizontal vertical stabilizers main fuselage parts ready assembly wing has tip rib spaced closer shown plans scrap pieces spar material notches stackthe ribsforalignmentand sand match pattern spar trailing edge shear webs cut 4-in-wide balsa I/lB DIA MUSIC WIRE NGLD DOWN PBO1/32 BALSA SHEET3/16 SQ BALSA TOP B BOTTOMLEADING EDGE W-IW-2 FINGER GRIP 1/16 BALSA L8 BALSA CROSS BRACE W-3 D-2 -~ E di HARD WOOO O MOUNTS WING 11W1 PLAN 1/16 C GRA- BALSA RIBS HINGE TO SUIT W-I TOP 1/4x 1/16 SPRUCE SPARS W-IWI VIEW - _ 4 ___ TE EXTENSIONS TOP I/B BALSA BOTTOM 1/32 PLY 1/8SO HO BALSA LEADING EDGEj 1/2 STRIP AlL AGE1/16 BALSAFIN SLOT FINGER GRIPS / LEV2 REQ REQDETAILSHEETINGSTILIZE PLY-T -_____________________ REQ_______ CUT LINES I 2REO - ___ 2 REQ BC v--0 -REQ REQ- -2 AB1/B BALSA BLERS-REQSHEET 1/8 BALSAF-2 1/32 PLYALL RIBS 1/16 C GRAIN BALSAFIN 0OR7 ROYAL MILITARY CANGPY 1/8, 3A6 BALSA INSTRUMENTS DRAWN ON MOTOR SWITCH /B BALSA SHEET HITE PAPER B GLUED 1/8 I/4 HQ WOODI/B SQ BALSATO REAR OF PANEL WOOD SCREWSSTAB LEFRONT HOLD DOWNI/BBALSA 1A6 1/4 HO WOOD1/16HOLES CUT WITH --- / 7BALSA3/16 ID BRASS lUBE IiL~tW FUSELAGE SIDE.--ISHEET jL2zzrThVILWHRU STAB KiN KEYED 183" 4-1/2SCREWSI/16BALSA SIDESHINGE LINE A/1621/2RUD-ELEVRADIO COMR HATCH DETAIL HO WOODI/B SQ BALSA LONGERONS BALSA PUSHROOAND CROSS BRACES E VSUPPORTOPEN FRAMEWORK 11tH 1/B BALSA -V /SHEET I/B 4 BALSA / SHEET TO -4 ELEVATOR 332 BALSA SHEETPAPER CLIP JOINER BOTTOM TE PIN 1 TRAILING EDGE 3/16 SQ 1/4 SQ COCKPIT DETAIL BAa- RESTHEAD-REST I/8BALSAI/4BALSA 1/4DIA LBALSA INSTRUMENT PANEL 1/16 BALSA K7 KILL SWITCH 65 271-406 CHARGIN AMP JACK_ 0FUSE BAIT PACICSERVO ACTVD SW AS 275-046 MODEL AVIATION LAVLTh RJV 035 ELECTRIC --FORWARD HATCH DETAIL WING SPAN 44B WT 21 OZ AREA 290 SQ IN LOADING II OZ 0 2 3 4 5 K DESIGNED DRAWN BY KEN MARRON IThAj11113 low-wing design has always gripping model near center-of-gravity CG finger grips underside wing attempt solve problem prefer rudder-and-elevator configuration can made doubling dihedral angle 120 hinging rudder along dotted line shown plan Decide way want build model nowand lets begin building Wing construction Make rib template A2 plywood pin sheet of46 C grain stiff straight-grain balsa fas tening both onto cutting board method keeps template slipping helps ensure uniform results Have two scrap pieces 1/16 x -in spruce spar stock handy 14 ribs cut out place between two spar scraps check proper spar-notch fit ribs stacked between spar scraps add template front pile sand ribs its exact July1987 29 1/32 PLY DIHED BRACES Full-Size Plans Available Page 178 MT JOE bEjwMrnu last look centersection before sheeting hides Things note finger grips center rib spacing should adjusted now suit aileron servo outline Trim /i2 top bottom four ribs form W2s W3s eight 6 balsa vertical-grain shear webs cut 4-in-wide stock available otherwise half-width pieces cut 2- 3-in-wide stock butted tightly together will suffice top bottom trailing edge strips TE webs also cut 6 balsa Finally make dihedral braces Dl D2 A2 plywood rear brace D2 A6 narrower Dl allow 1A2in top bottom sheeting rest major parts made up way wing construction will move along quickly like use building board hinged middle order eliminate possibility building twist wing panels joined Prop up both sides hinged board two separate boards butted together middle dihedral brace Dl fits V flush surface both sides producing angle about 60 Cut wing pattern plans sheet fold half creasing along wing centerline Pin board cover plastic film Once wing finished can tape wing pattern back place using clear transparent tape entire model glued cyanoacrylate CyA unless otherwise specified wing built following se quence Bevel ends two pieces 6 x -in spruce spar material cut length Note bottom spar shorter top extends outer edge last Wl rib Join bevelled ends white glue pin spars place over plan Since hard push straight pins through hard spars use bulletin-board-type push pins positioned along length hold spars place semi-symmetrical airfoil its eas ier build wing bottom TE strips propped up shims run length TE Y16-sq piece front -in-sq toward rear edge work well Using few ribs spacers pin bottom TE strips place through shims glue butted edges together Starting tip wing panel glue down rib shear web TE web Continue until five Wl ribs wing half place Add top spars Y16-sq LE using white glue install front dihedral brace Dl clamp position clothespins remainder center-section pieces shimmed up 2 installed following order W2A W2B D2 white glue -in cross brace between ribs W2B lastly sections W3 ribs Space W3C sections suit aileron servo Finish installing TE webs top TE sheeting Add top bottom center-section sheeting Round off lead ing edge add wing tips finger grips remainder wing will completed after fuselage built Fuselage Cut sides two pieces medium-weight straight-grain V16 x 3 x 36-in balsa equal density will curve evenly Clamp both halves gether clothespins using balsa scraps prevent soft wood denting sand identical shape 30 Model Aviation positions Fl FlA P2 marked insides fuselage halves After squaring formers triangle glue half fuselage CyA Lon gerons doublers added before joining everthing must square After trial fit radio compartment floor position fuselage halves joined Use centerlines formers graph paper make alignment easier accurate Square up aides triangle right clamp place Temporarily wrap tape around body motor forget remove before running motor prevent sawdust entering half-round file remove just enough material nose doublers allow motorto slip through opening After white glue used attach radio compartment floor thoroughly dry pull nose clamp top bottom doublers place Flood jointswith CyA Nose details include locations OT doublers longerons hatch hold-down blocks radio compartment doublers forward hatch Cut out radio compartment doublers B remaining scrap Formers Fl F2 made hard -in balsa F lA either piece hard balsa two pieces -in balsa glued together four nose doublers cut medium-density -in balsa radio compartment floor /32 plywood Although cut out motor battery vent holes after fuselage constructed its easier sides flat cutting board sharpened piece ofMs ID brass tubing makes good tool Carefully mark off vertical centers Fl FlA F2 mark off locations inside fuselage halves Using triangle ensure accuracy glue formers Fl F2 half fuselage Orient former FlA its centerline faces toward rear Glue place white glue clamp together until dry Glue doublers B between formers making sure slit between wide enough accept floor Add Vs-in-sq balsa longerons attach -in nose doublers white glue Prepare other half fuselage gluing doublers B lon gerons leaving spaces formers F 1 F2 slide nose doublers Trial-fit sides together floor position sand down inside rear fuselage halves drawn together taper sfied fit disassemble pieces place bead white glue floor slots top FlA Fit sides floor back together Put C-clamps around fuselage F 1 F2 fuselage over plan orwith help some other alignment aid pull tail clamp position hespin everything lined up properly triangle shows sides square building board glue F 1 F2 tail place Let white glue dry thoroughly before continuing Draw line down center top bottom nose doublers help align ment Pull nose position doublers clamp place liberally hit joints CyA glue Finish fuselage adding 1/16 balsa top bottom nose area cross-grain sheeting -in balsa cross braces Use white glue three Vs x -in hardwood hatchhold-down blocks n rearwing-hold-down block Finally make up hatches 1/is balsa Nose Bulkhead Draw out bulkhead sheet l/~ plywood stock Cut slots drill holes cut out bulkhead itself During construction cover motor vent holes tape prevent sawdust getting remember remove tape before running motor Drill Yis-dia center hole motor first -in-dia motor mount ing holes Check see motor lines up properly air inlets formed drilling in-dia hole corner inlet filing out area between rattail file sanding block sand down front nose bulkhead will seat flush against front edges doublers must filed down slightly allow motor slip through opening Continued page 32 July 1987 31 strip aileron hardware epoxied grove filed along joint between trail ing edge balsa extension Light cloth epoxied overthe brasstublng adds strength rear vertical stab hanging over edge building board seated slot horizontal stab CyA two pieces together using triangle accuracy Additional strength obtained gluing piece 1/32 plywood underside TE balsa TE extension ply tapered blend sheeting finished framework readyforcovering should weigh about41/2 oz Pickone lighter covering materials keep overall weight down Atterthe model covered canopy attached fuselage narrow strip ironon covering material Im going flying words conjure up images battles balky engines instead carefree days field youre using McDaniel R/C NiStarterTM light plug NiStartersTM heavy-duty nicad power will provide up 50 reliable quick starts charge features famous Head LockTM adapter brass reinforcing ring around crimped end really extends its life works sideways inverted information well NiStarter works just go local flying field may have wait NiStartersTM always flying McDaniel RIC FIncorporated 12206 Guinevere Road enn Dale MD 20769 3011464-2260 Telex 287901 McD-UR K take hassle out hobby 32 Model Aviation Bolt motor bulkhead trialfit through opening Saturate front nose CyA glue slip motor bulkhead back position until adhesive sets up Unbolt motor round off corners nose fuselage eliminate boxy look Tail Section Build stabilizer fin over plan help square triangle assure 900 alignment glue fin its slot stab Attach assembled tail section fuselage using favorite method alignment round off edges Wing Mounting Check see wing rests properly its saddle add hold-down peg drilling A6-dla hole wing LE dihedral joint Cut 1in peg /16-dia music wire roughen up half file Drop some CyA glue hole roughened wire push wire hole Center wing saddle slide forward until tip music wire touches centerline F lA Make indentation Fl wire wing removed drill /~ hole through FlA Fl necessary elon gate hole rattail file proper wing seating Cut out two -in balsa TE exten sions wing back place fit between rear wing F2 glue wing Cut out 1 x 4-in piece of/32 plywood attach white glue underside TE balsa TE extension Clamp clothespins drying sanding block taper plywood blend center-section sheeting Drill holes through extensions sheet metal hold-down screws file grooves along joint TE extension piece accept brass tube strip aileron set Make up set roughen up brass tubes epoxy place Epoxy light fiberglass cloth fabric over added rein forcement Remember think light applying epoxy Align wing per fectly drill holes through holddown block accept sheet metal screws Covering Sand entire model lightly wipe down tack rag before covering lightweight material model presented covered Top Flite EconoKote has weight /s oz per sq ft After entire plane covered ailerons elevators hinged EconoKote follows Cut two strips covering material Ye x 12 Peel off backing overlap about adhesive sides facing other heatseal together Cut 1-in widths ailerons -in widths elevator apply surfaces over-and-under pattern Continued page 34 * Over $200000 prizes drawn * Guest appearance Ivan Kristensen *Trophies awanled foc best show best flyer best 4 cycle aircraft best sport scale aircraft *Frec intro lesson radio control flying *Fr sport shirt first 100 pilots *BARBQ cook Saturday evening *DOOr prizes spectators *Raffles airplane kits PARKING STEELES AVE IALBION RD C zREXDALE BLVD 0 HWY 401 Contact HUMBER VALLEY R/C FLYERS 105 Stiliwater Cr Willowdale Ont M2R-353 416 222-7509 ATT- CHEIC ON-Board Battery Tester Saves Time. Saves Models BATT-CHEK RX-1 7~$1495 NT P U Use TATON ES THRUST TESTER determine maximum engine output using different props fuel mixtures RPM levels Check engine aaainst another 34 Model Aviation NW Install RO Models Check receiver battery status press button Small Light /2 oz Precise Rugged ORDER TODAY dealer Protune corp t91 41462-6452 PO Boa 1808 Poughkeepsie NY 12601 OPTIMIZE YOUR ENGINES OUTPUT TATONES THRUST TESTER TATONE 30-13 ALUM MOTOR MOUNT ENGINE THROTTLE CONTROL SAFETY STARTING LOCK Canopy hope take time install headrest instrument panel well canopy since add lot appearance model radio compartment hatch screwed place trim bottom canopy conform its shape Cut away hatch covering interior details will placed before attaching After attaching interior details have someone hold canopy place attach hatch strips Y16-in-wide tape made covering materialfirst making sure theres no dust trapped inside Position tape carefully before applying heat method makes much stronger bond can achieved commercial trim stripping tape Radio installation elevator motor control servos mounted strips 46 plywood rest top doublers motor on-off microswitch Radio Shack #275-016 positioned left wall turned transmitter control stick trim tab full-throttle position Mark location attach switch epoxy use CyA glue chance will run inside switch render useless Motor installation Because battery pack permanently soldered motor cannot unplugged safety kill switch must installed system prevent accidental motor turn-on pos sible injury prop during trans porting range checking making adjustments Please eliminate it important safety feature constant torque small electric motor such should underestimated As further aid safety remove prop plane away flying field After charging jacks switches installed wired position receiver run its antenna back through fuse lage out hole near pushrod exit Position receiver battery pack get model balance correct CG tail built lightly shouldnt problem Charging vents fuselage sides above motor battery pack much cooling batteries flight dissipating heat during charging 6-amp 12-volt lead-acid start ing battery average condition has suf ficient charging capacity five six flights Little current drawn flight system no binding control surfaces pushrods 30 minutes flight time should expected 100 mAh battery using mini system Checking its condition between flights strongly advised however Trimming flying Elevator throw should about ailerons Continued page 136 FUNFLY 4- CYCLE EXTRAVAGANZA 2 cycle sport scale welcome JUNE 27 & 28 1987 Sponsored NATIONAL HOBBY stores CANADAS LARGEST 4CYCLE RALLY Toronto Ont Spectators $200 per person per day Pilot registration $1000 per day Noise limit 88db 7 meters enforeed DIRECT READING THRUST DIALONLY $6996 NOR THEA ST AEROD YNAMICS 61C LEBANON STREET ORD ME 04073 490-1881 TRAIN-AIR 20 TRAIN-AIR 40 SPORT-AIR 40 BEL-AIR 40 AO U See local dealer call us referral BEL-AIR 60 Safety Preston Continued page 22 wear gloves dust masks safety gog gles special clothing respirators Learn about chemicals materials what precautions should taken working Study warning labels have questions contact manu facturer ask safety data sheets can replace hazardous materials safer ones Store materials original containers keep covered Keep work area clean Wipe up flammable liquid spills immediately put soaked rags tightly-covered trash container Dispose chemicals properly have World famous kits Europe Large magnificent replicas over 4 feet long beautiful walnut mahogany planking fittings details exquisitely cast bronze brass rare hardwoods Large scale plans step-bystep instructions materials included VHS Video tapecassette howto build also available Send 64-pg full-color catalog $100 MODEL EXPO INC Dept MA-77S 23 Just Road Fairfield NJ 07007 Please send full color ship model catalog $100 enclosed Name questions about disposal contact local health fire department Dont work flammable materials near ignition source such open flame heater water heater cigarette suffer asthma emphysema aller gies heart condition check doctor about materials processes work pregnant ask doctor about continuing hobby also applies wives male hobbyists JP Space out sessions hobby give body time recover between pos sible exposures Ive previously mentioned number above DuPont safety tips dont think can hurt repeat continue see new comers enter hobby may aware some hazards associated products use Before leaving subject potentially haz ardous chemicals want mention two have seemingly similar names have very different properties methyl ethyl ketone MEK methyl ethyl ketone peroxide MEKP MEK solvent commonly used join styrene plastic products Chemically closely related ace tone addition being another common modeling solvent may well principal gredient wifes girlfriends nail polish remover recent letter claimed writer told never allow MEK come contact ones skin since readily ab sorbed ones system will stay until die letter-writer also stated told MEK will cause permanent blind ness upon contact eyeball latter statement leads believe confusing MEK MEKP Methyl ethyl ketone peroxide MEKP clear liquid hardener accompanies polyester resin strong oxidizer extreme care should taken avoid getting drop ones eye Such mishap could well result permanent eye damage blindness would rather get drop methyl ethyl ketone MEK eye does present anywhere near same hazard eyes does MEKP eyes immediately flushed water upon contact MEK no lasting damage should result Similarly am aware MEK presents hazard due skin contact Cyanoacrylate CyA glues have also con fused MEKP some letter-writers writers believed mere drop CyA eye would result instant blindness drop CyA glue eye may well cause eyelids become stuck together likely will very uncomfortable its likely will result permanent damage However would urge take precautions against getting anything eye days ever find time would like list various chemicals use hobby together associated hazards handling precautions Meanwhile urge take care John Preston 2812 Northampton St N W Washington DC 20015 Low Voltage/Marron Continued page 34 /I6 Make sure kill switch off position check controls working properly right direction Since plane light glides well its easy trim out standing top small hill firmly throwing power nose level slightly down wind Make whatever adjustments necessary before attempting powered flight Top Flite nylon 6 x 4 prop installed turn kill switch check proper control surface movement start motor Launch model good shove nose down prevent stall let fly straight level until picks up speed Start feeding some up elevator remembering small electric motor doesnt have much power snarling glow engine Low Voltage has gained some height heart starts beating nor mally again put through some maneuvers get feel control responses Make mental notes adjustments may needed After about 4 5 min will hear whine motor noticeably decrease pitch model wont climb Its time shut off mjttor prepare landing ailerons effective down stall speed experienced landing planes landing gear will pleasantly surprised ease accomplished responding advertisers mention read about ModelAviation 136 Model Aviation city State_____________________ Zip
Edition: Model Aviation - 1987/07
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 31, 32, 34, 136
NO OCR TEXT NO OCR TEXT Above inupy unu uuuput uuiau iuup wau umi uuu easily made See text fordetalis securing canopy finger grips greatly simpilfy gripping hand-iaunches slicker iook antenna runs through fuseiage before exiting Radio Shack microswitch left provides motor on/off control through radio very important also install manual motor kill switch well batteVs hard-wired plugged circuit manual switch safety feature should overlooked Finger grips wing make easier safer hold onto airplane Balanced comfortably between thumb index finger positive control launching 26 Model Aviation urapnic aetails personaiize your air piane case iettering pressuresensitive vinyl applied top MonoKate trim sheet lightening bolt MonoKote straightforward aileron control instaila trim striping tape Goldberg tion uses Du-Bro 1/2A aileron package 5ecause OT fla quietne. ana ama rne modei can have tooiing around iocal sports fields open area impromp tu flying sessions aimost hasslefree modei grooves weli dont expect verticai performance takeoff NO OCR TEXT time setting up approach model easily flown anyone average sport flying capabilitiesbeing Spars held plan bulletin board push pins line along top spar guide aligning shear webs gluing place trail ing edge propped up lengths balsa maneuverable stable predictable being fast simple design keeps construction time minimumand holds weight down completed ready-tofly model should weigh between 20 23 difficulties hand-launching rap SFSR TIP BOTTOM SFSR TIP / \ \ \ 3/32 BALSA KyHEET WHO Ps 1/16 BALSA VS GRAIl WEBS WI 1/IS BALSA SHEET TE -lOP 8 BOTTOM wI I/I6B WEBS 3/32 AILEF F DIHEDRAL BRACES WING TiP DETA L 1/B BALSA SHEET--BTOP~BOT NOSE SARADIO C SHEE F-Ir77 SIDE NOSEV DOUBLERSL2 F-IA 1/4Vi BALSALL NOSEBATT COOL- RADII HG HOLES BULKHEAD1/Bc 1/4 T/I6DIAL16 BALSA HATa CROSS F-I ASIRO 035GRAIN 14 o oo _ 44 SOO MA I/IS PLY ILXMNr 7 MOTOM MOI*4TIF4G SCREWS 4-40 I/BA1/16 BALSACA 1/8 BALSA DOUBFuse CROSS GRAIN MOIS COSF Fl \I/S2PtY\ 1/16 BALSA SHEET 1/6 BALSA TOP TTOM DOUBLERS After pinning down spars trailing edge add ribs webs tip root Adding webs before top spar installed much easier wedging later 28 Model Aviation completed prototype wing horizontal vertical stabilizers main fuselage parts ready assembly wing has tip rib spaced closer shown plans scrap pieces spar material notches stackthe ribsforalignmentand sand match pattern spar trailing edge shear webs cut 4-in-wide balsa I/lB DIA MUSIC WIRE NGLD DOWN PBO1/32 BALSA SHEET3/16 SQ BALSA TOP B BOTTOMLEADING EDGE W-IW-2 FINGER GRIP 1/16 BALSA L8 BALSA CROSS BRACE W-3 D-2 -~ E di HARD WOOO O MOUNTS WING 11W1 PLAN 1/16 C GRA- BALSA RIBS HINGE TO SUIT W-I TOP 1/4x 1/16 SPRUCE SPARS W-IWI VIEW - _ 4 ___ TE EXTENSIONS TOP I/B BALSA BOTTOM 1/32 PLY 1/8SO HO BALSA LEADING EDGEj 1/2 STRIP AlL AGE1/16 BALSAFIN SLOT FINGER GRIPS / LEV2 REQ REQDETAILSHEETINGSTILIZE PLY-T -_____________________ REQ_______ CUT LINES I 2REO - ___ 2 REQ BC v--0 -REQ REQ- -2 AB1/B BALSA BLERS-REQSHEET 1/8 BALSAF-2 1/32 PLYALL RIBS 1/16 C GRAIN BALSAFIN 0OR7 ROYAL MILITARY CANGPY 1/8, 3A6 BALSA INSTRUMENTS DRAWN ON MOTOR SWITCH /B BALSA SHEET HITE PAPER B GLUED 1/8 I/4 HQ WOODI/B SQ BALSATO REAR OF PANEL WOOD SCREWSSTAB LEFRONT HOLD DOWNI/BBALSA 1A6 1/4 HO WOOD1/16HOLES CUT WITH --- / 7BALSA3/16 ID BRASS lUBE IiL~tW FUSELAGE SIDE.--ISHEET jL2zzrThVILWHRU STAB KiN KEYED 183" 4-1/2SCREWSI/16BALSA SIDESHINGE LINE A/1621/2RUD-ELEVRADIO COMR HATCH DETAIL HO WOODI/B SQ BALSA LONGERONS BALSA PUSHROOAND CROSS BRACES E VSUPPORTOPEN FRAMEWORK 11tH 1/B BALSA -V /SHEET I/B 4 BALSA / SHEET TO -4 ELEVATOR 332 BALSA SHEETPAPER CLIP JOINER BOTTOM TE PIN 1 TRAILING EDGE 3/16 SQ 1/4 SQ COCKPIT DETAIL BAa- RESTHEAD-REST I/8BALSAI/4BALSA 1/4DIA LBALSA INSTRUMENT PANEL 1/16 BALSA K7 KILL SWITCH 65 271-406 CHARGIN AMP JACK_ 0FUSE BAIT PACICSERVO ACTVD SW AS 275-046 MODEL AVIATION LAVLTh RJV 035 ELECTRIC --FORWARD HATCH DETAIL WING SPAN 44B WT 21 OZ AREA 290 SQ IN LOADING II OZ 0 2 3 4 5 K DESIGNED DRAWN BY KEN MARRON IThAj11113 low-wing design has always gripping model near center-of-gravity CG finger grips underside wing attempt solve problem prefer rudder-and-elevator configuration can made doubling dihedral angle 120 hinging rudder along dotted line shown plan Decide way want build model nowand lets begin building Wing construction Make rib template A2 plywood pin sheet of46 C grain stiff straight-grain balsa fas tening both onto cutting board method keeps template slipping helps ensure uniform results Have two scrap pieces 1/16 x -in spruce spar stock handy 14 ribs cut out place between two spar scraps check proper spar-notch fit ribs stacked between spar scraps add template front pile sand ribs its exact July1987 29 1/32 PLY DIHED BRACES Full-Size Plans Available Page 178 MT JOE bEjwMrnu last look centersection before sheeting hides Things note finger grips center rib spacing should adjusted now suit aileron servo outline Trim /i2 top bottom four ribs form W2s W3s eight 6 balsa vertical-grain shear webs cut 4-in-wide stock available otherwise half-width pieces cut 2- 3-in-wide stock butted tightly together will suffice top bottom trailing edge strips TE webs also cut 6 balsa Finally make dihedral braces Dl D2 A2 plywood rear brace D2 A6 narrower Dl allow 1A2in top bottom sheeting rest major parts made up way wing construction will move along quickly like use building board hinged middle order eliminate possibility building twist wing panels joined Prop up both sides hinged board two separate boards butted together middle dihedral brace Dl fits V flush surface both sides producing angle about 60 Cut wing pattern plans sheet fold half creasing along wing centerline Pin board cover plastic film Once wing finished can tape wing pattern back place using clear transparent tape entire model glued cyanoacrylate CyA unless otherwise specified wing built following se quence Bevel ends two pieces 6 x -in spruce spar material cut length Note bottom spar shorter top extends outer edge last Wl rib Join bevelled ends white glue pin spars place over plan Since hard push straight pins through hard spars use bulletin-board-type push pins positioned along length hold spars place semi-symmetrical airfoil its eas ier build wing bottom TE strips propped up shims run length TE Y16-sq piece front -in-sq toward rear edge work well Using few ribs spacers pin bottom TE strips place through shims glue butted edges together Starting tip wing panel glue down rib shear web TE web Continue until five Wl ribs wing half place Add top spars Y16-sq LE using white glue install front dihedral brace Dl clamp position clothespins remainder center-section pieces shimmed up 2 installed following order W2A W2B D2 white glue -in cross brace between ribs W2B lastly sections W3 ribs Space W3C sections suit aileron servo Finish installing TE webs top TE sheeting Add top bottom center-section sheeting Round off lead ing edge add wing tips finger grips remainder wing will completed after fuselage built Fuselage Cut sides two pieces medium-weight straight-grain V16 x 3 x 36-in balsa equal density will curve evenly Clamp both halves gether clothespins using balsa scraps prevent soft wood denting sand identical shape 30 Model Aviation positions Fl FlA P2 marked insides fuselage halves After squaring formers triangle glue half fuselage CyA Lon gerons doublers added before joining everthing must square After trial fit radio compartment floor position fuselage halves joined Use centerlines formers graph paper make alignment easier accurate Square up aides triangle right clamp place Temporarily wrap tape around body motor forget remove before running motor prevent sawdust entering half-round file remove just enough material nose doublers allow motorto slip through opening After white glue used attach radio compartment floor thoroughly dry pull nose clamp top bottom doublers place Flood jointswith CyA Nose details include locations OT doublers longerons hatch hold-down blocks radio compartment doublers forward hatch Cut out radio compartment doublers B remaining scrap Formers Fl F2 made hard -in balsa F lA either piece hard balsa two pieces -in balsa glued together four nose doublers cut medium-density -in balsa radio compartment floor /32 plywood Although cut out motor battery vent holes after fuselage constructed its easier sides flat cutting board sharpened piece ofMs ID brass tubing makes good tool Carefully mark off vertical centers Fl FlA F2 mark off locations inside fuselage halves Using triangle ensure accuracy glue formers Fl F2 half fuselage Orient former FlA its centerline faces toward rear Glue place white glue clamp together until dry Glue doublers B between formers making sure slit between wide enough accept floor Add Vs-in-sq balsa longerons attach -in nose doublers white glue Prepare other half fuselage gluing doublers B lon gerons leaving spaces formers F 1 F2 slide nose doublers Trial-fit sides together floor position sand down inside rear fuselage halves drawn together taper sfied fit disassemble pieces place bead white glue floor slots top FlA Fit sides floor back together Put C-clamps around fuselage F 1 F2 fuselage over plan orwith help some other alignment aid pull tail clamp position hespin everything lined up properly triangle shows sides square building board glue F 1 F2 tail place Let white glue dry thoroughly before continuing Draw line down center top bottom nose doublers help align ment Pull nose position doublers clamp place liberally hit joints CyA glue Finish fuselage adding 1/16 balsa top bottom nose area cross-grain sheeting -in balsa cross braces Use white glue three Vs x -in hardwood hatchhold-down blocks n rearwing-hold-down block Finally make up hatches 1/is balsa Nose Bulkhead Draw out bulkhead sheet l/~ plywood stock Cut slots drill holes cut out bulkhead itself During construction cover motor vent holes tape prevent sawdust getting remember remove tape before running motor Drill Yis-dia center hole motor first -in-dia motor mount ing holes Check see motor lines up properly air inlets formed drilling in-dia hole corner inlet filing out area between rattail file sanding block sand down front nose bulkhead will seat flush against front edges doublers must filed down slightly allow motor slip through opening Continued page 32 July 1987 31 strip aileron hardware epoxied grove filed along joint between trail ing edge balsa extension Light cloth epoxied overthe brasstublng adds strength rear vertical stab hanging over edge building board seated slot horizontal stab CyA two pieces together using triangle accuracy Additional strength obtained gluing piece 1/32 plywood underside TE balsa TE extension ply tapered blend sheeting finished framework readyforcovering should weigh about41/2 oz Pickone lighter covering materials keep overall weight down Atterthe model covered canopy attached fuselage narrow strip ironon covering material Im going flying words conjure up images battles balky engines instead carefree days field youre using McDaniel R/C NiStarterTM light plug NiStartersTM heavy-duty nicad power will provide up 50 reliable quick starts charge features famous Head LockTM adapter brass reinforcing ring around crimped end really extends its life works sideways inverted information well NiStarter works just go local flying field may have wait NiStartersTM always flying McDaniel RIC FIncorporated 12206 Guinevere Road enn Dale MD 20769 3011464-2260 Telex 287901 McD-UR K take hassle out hobby 32 Model Aviation Bolt motor bulkhead trialfit through opening Saturate front nose CyA glue slip motor bulkhead back position until adhesive sets up Unbolt motor round off corners nose fuselage eliminate boxy look Tail Section Build stabilizer fin over plan help square triangle assure 900 alignment glue fin its slot stab Attach assembled tail section fuselage using favorite method alignment round off edges Wing Mounting Check see wing rests properly its saddle add hold-down peg drilling A6-dla hole wing LE dihedral joint Cut 1in peg /16-dia music wire roughen up half file Drop some CyA glue hole roughened wire push wire hole Center wing saddle slide forward until tip music wire touches centerline F lA Make indentation Fl wire wing removed drill /~ hole through FlA Fl necessary elon gate hole rattail file proper wing seating Cut out two -in balsa TE exten sions wing back place fit between rear wing F2 glue wing Cut out 1 x 4-in piece of/32 plywood attach white glue underside TE balsa TE extension Clamp clothespins drying sanding block taper plywood blend center-section sheeting Drill holes through extensions sheet metal hold-down screws file grooves along joint TE extension piece accept brass tube strip aileron set Make up set roughen up brass tubes epoxy place Epoxy light fiberglass cloth fabric over added rein forcement Remember think light applying epoxy Align wing per fectly drill holes through holddown block accept sheet metal screws Covering Sand entire model lightly wipe down tack rag before covering lightweight material model presented covered Top Flite EconoKote has weight /s oz per sq ft After entire plane covered ailerons elevators hinged EconoKote follows Cut two strips covering material Ye x 12 Peel off backing overlap about adhesive sides facing other heatseal together Cut 1-in widths ailerons -in widths elevator apply surfaces over-and-under pattern Continued page 34 * Over $200000 prizes drawn * Guest appearance Ivan Kristensen *Trophies awanled foc best show best flyer best 4 cycle aircraft best sport scale aircraft *Frec intro lesson radio control flying *Fr sport shirt first 100 pilots *BARBQ cook Saturday evening *DOOr prizes spectators *Raffles airplane kits PARKING STEELES AVE IALBION RD C zREXDALE BLVD 0 HWY 401 Contact HUMBER VALLEY R/C FLYERS 105 Stiliwater Cr Willowdale Ont M2R-353 416 222-7509 ATT- CHEIC ON-Board Battery Tester Saves Time. Saves Models BATT-CHEK RX-1 7~$1495 NT P U Use TATON ES THRUST TESTER determine maximum engine output using different props fuel mixtures RPM levels Check engine aaainst another 34 Model Aviation NW Install RO Models Check receiver battery status press button Small Light /2 oz Precise Rugged ORDER TODAY dealer Protune corp t91 41462-6452 PO Boa 1808 Poughkeepsie NY 12601 OPTIMIZE YOUR ENGINES OUTPUT TATONES THRUST TESTER TATONE 30-13 ALUM MOTOR MOUNT ENGINE THROTTLE CONTROL SAFETY STARTING LOCK Canopy hope take time install headrest instrument panel well canopy since add lot appearance model radio compartment hatch screwed place trim bottom canopy conform its shape Cut away hatch covering interior details will placed before attaching After attaching interior details have someone hold canopy place attach hatch strips Y16-in-wide tape made covering materialfirst making sure theres no dust trapped inside Position tape carefully before applying heat method makes much stronger bond can achieved commercial trim stripping tape Radio installation elevator motor control servos mounted strips 46 plywood rest top doublers motor on-off microswitch Radio Shack #275-016 positioned left wall turned transmitter control stick trim tab full-throttle position Mark location attach switch epoxy use CyA glue chance will run inside switch render useless Motor installation Because battery pack permanently soldered motor cannot unplugged safety kill switch must installed system prevent accidental motor turn-on pos sible injury prop during trans porting range checking making adjustments Please eliminate it important safety feature constant torque small electric motor such should underestimated As further aid safety remove prop plane away flying field After charging jacks switches installed wired position receiver run its antenna back through fuse lage out hole near pushrod exit Position receiver battery pack get model balance correct CG tail built lightly shouldnt problem Charging vents fuselage sides above motor battery pack much cooling batteries flight dissipating heat during charging 6-amp 12-volt lead-acid start ing battery average condition has suf ficient charging capacity five six flights Little current drawn flight system no binding control surfaces pushrods 30 minutes flight time should expected 100 mAh battery using mini system Checking its condition between flights strongly advised however Trimming flying Elevator throw should about ailerons Continued page 136 FUNFLY 4- CYCLE EXTRAVAGANZA 2 cycle sport scale welcome JUNE 27 & 28 1987 Sponsored NATIONAL HOBBY stores CANADAS LARGEST 4CYCLE RALLY Toronto Ont Spectators $200 per person per day Pilot registration $1000 per day Noise limit 88db 7 meters enforeed DIRECT READING THRUST DIALONLY $6996 NOR THEA ST AEROD YNAMICS 61C LEBANON STREET ORD ME 04073 490-1881 TRAIN-AIR 20 TRAIN-AIR 40 SPORT-AIR 40 BEL-AIR 40 AO U See local dealer call us referral BEL-AIR 60 Safety Preston Continued page 22 wear gloves dust masks safety gog gles special clothing respirators Learn about chemicals materials what precautions should taken working Study warning labels have questions contact manu facturer ask safety data sheets can replace hazardous materials safer ones Store materials original containers keep covered Keep work area clean Wipe up flammable liquid spills immediately put soaked rags tightly-covered trash container Dispose chemicals properly have World famous kits Europe Large magnificent replicas over 4 feet long beautiful walnut mahogany planking fittings details exquisitely cast bronze brass rare hardwoods Large scale plans step-bystep instructions materials included VHS Video tapecassette howto build also available Send 64-pg full-color catalog $100 MODEL EXPO INC Dept MA-77S 23 Just Road Fairfield NJ 07007 Please send full color ship model catalog $100 enclosed Name questions about disposal contact local health fire department Dont work flammable materials near ignition source such open flame heater water heater cigarette suffer asthma emphysema aller gies heart condition check doctor about materials processes work pregnant ask doctor about continuing hobby also applies wives male hobbyists JP Space out sessions hobby give body time recover between pos sible exposures Ive previously mentioned number above DuPont safety tips dont think can hurt repeat continue see new comers enter hobby may aware some hazards associated products use Before leaving subject potentially haz ardous chemicals want mention two have seemingly similar names have very different properties methyl ethyl ketone MEK methyl ethyl ketone peroxide MEKP MEK solvent commonly used join styrene plastic products Chemically closely related ace tone addition being another common modeling solvent may well principal gredient wifes girlfriends nail polish remover recent letter claimed writer told never allow MEK come contact ones skin since readily ab sorbed ones system will stay until die letter-writer also stated told MEK will cause permanent blind ness upon contact eyeball latter statement leads believe confusing MEK MEKP Methyl ethyl ketone peroxide MEKP clear liquid hardener accompanies polyester resin strong oxidizer extreme care should taken avoid getting drop ones eye Such mishap could well result permanent eye damage blindness would rather get drop methyl ethyl ketone MEK eye does present anywhere near same hazard eyes does MEKP eyes immediately flushed water upon contact MEK no lasting damage should result Similarly am aware MEK presents hazard due skin contact Cyanoacrylate CyA glues have also con fused MEKP some letter-writers writers believed mere drop CyA eye would result instant blindness drop CyA glue eye may well cause eyelids become stuck together likely will very uncomfortable its likely will result permanent damage However would urge take precautions against getting anything eye days ever find time would like list various chemicals use hobby together associated hazards handling precautions Meanwhile urge take care John Preston 2812 Northampton St N W Washington DC 20015 Low Voltage/Marron Continued page 34 /I6 Make sure kill switch off position check controls working properly right direction Since plane light glides well its easy trim out standing top small hill firmly throwing power nose level slightly down wind Make whatever adjustments necessary before attempting powered flight Top Flite nylon 6 x 4 prop installed turn kill switch check proper control surface movement start motor Launch model good shove nose down prevent stall let fly straight level until picks up speed Start feeding some up elevator remembering small electric motor doesnt have much power snarling glow engine Low Voltage has gained some height heart starts beating nor mally again put through some maneuvers get feel control responses Make mental notes adjustments may needed After about 4 5 min will hear whine motor noticeably decrease pitch model wont climb Its time shut off mjttor prepare landing ailerons effective down stall speed experienced landing planes landing gear will pleasantly surprised ease accomplished responding advertisers mention read about ModelAviation 136 Model Aviation city State_____________________ Zip
Edition: Model Aviation - 1987/07
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 31, 32, 34, 136
NO OCR TEXT NO OCR TEXT Above inupy unu uuuput uuiau iuup wau umi uuu easily made See text fordetalis securing canopy finger grips greatly simpilfy gripping hand-iaunches slicker iook antenna runs through fuseiage before exiting Radio Shack microswitch left provides motor on/off control through radio very important also install manual motor kill switch well batteVs hard-wired plugged circuit manual switch safety feature should overlooked Finger grips wing make easier safer hold onto airplane Balanced comfortably between thumb index finger positive control launching 26 Model Aviation urapnic aetails personaiize your air piane case iettering pressuresensitive vinyl applied top MonoKate trim sheet lightening bolt MonoKote straightforward aileron control instaila trim striping tape Goldberg tion uses Du-Bro 1/2A aileron package 5ecause OT fla quietne. ana ama rne modei can have tooiing around iocal sports fields open area impromp tu flying sessions aimost hasslefree modei grooves weli dont expect verticai performance takeoff NO OCR TEXT time setting up approach model easily flown anyone average sport flying capabilitiesbeing Spars held plan bulletin board push pins line along top spar guide aligning shear webs gluing place trail ing edge propped up lengths balsa maneuverable stable predictable being fast simple design keeps construction time minimumand holds weight down completed ready-tofly model should weigh between 20 23 difficulties hand-launching rap SFSR TIP BOTTOM SFSR TIP / \ \ \ 3/32 BALSA KyHEET WHO Ps 1/16 BALSA VS GRAIl WEBS WI 1/IS BALSA SHEET TE -lOP 8 BOTTOM wI I/I6B WEBS 3/32 AILEF F DIHEDRAL BRACES WING TiP DETA L 1/B BALSA SHEET--BTOP~BOT NOSE SARADIO C SHEE F-Ir77 SIDE NOSEV DOUBLERSL2 F-IA 1/4Vi BALSALL NOSEBATT COOL- RADII HG HOLES BULKHEAD1/Bc 1/4 T/I6DIAL16 BALSA HATa CROSS F-I ASIRO 035GRAIN 14 o oo _ 44 SOO MA I/IS PLY ILXMNr 7 MOTOM MOI*4TIF4G SCREWS 4-40 I/BA1/16 BALSACA 1/8 BALSA DOUBFuse CROSS GRAIN MOIS COSF Fl \I/S2PtY\ 1/16 BALSA SHEET 1/6 BALSA TOP TTOM DOUBLERS After pinning down spars trailing edge add ribs webs tip root Adding webs before top spar installed much easier wedging later 28 Model Aviation completed prototype wing horizontal vertical stabilizers main fuselage parts ready assembly wing has tip rib spaced closer shown plans scrap pieces spar material notches stackthe ribsforalignmentand sand match pattern spar trailing edge shear webs cut 4-in-wide balsa I/lB DIA MUSIC WIRE NGLD DOWN PBO1/32 BALSA SHEET3/16 SQ BALSA TOP B BOTTOMLEADING EDGE W-IW-2 FINGER GRIP 1/16 BALSA L8 BALSA CROSS BRACE W-3 D-2 -~ E di HARD WOOO O MOUNTS WING 11W1 PLAN 1/16 C GRA- BALSA RIBS HINGE TO SUIT W-I TOP 1/4x 1/16 SPRUCE SPARS W-IWI VIEW - _ 4 ___ TE EXTENSIONS TOP I/B BALSA BOTTOM 1/32 PLY 1/8SO HO BALSA LEADING EDGEj 1/2 STRIP AlL AGE1/16 BALSAFIN SLOT FINGER GRIPS / LEV2 REQ REQDETAILSHEETINGSTILIZE PLY-T -_____________________ REQ_______ CUT LINES I 2REO - ___ 2 REQ BC v--0 -REQ REQ- -2 AB1/B BALSA BLERS-REQSHEET 1/8 BALSAF-2 1/32 PLYALL RIBS 1/16 C GRAIN BALSAFIN 0OR7 ROYAL MILITARY CANGPY 1/8, 3A6 BALSA INSTRUMENTS DRAWN ON MOTOR SWITCH /B BALSA SHEET HITE PAPER B GLUED 1/8 I/4 HQ WOODI/B SQ BALSATO REAR OF PANEL WOOD SCREWSSTAB LEFRONT HOLD DOWNI/BBALSA 1A6 1/4 HO WOOD1/16HOLES CUT WITH --- / 7BALSA3/16 ID BRASS lUBE IiL~tW FUSELAGE SIDE.--ISHEET jL2zzrThVILWHRU STAB KiN KEYED 183" 4-1/2SCREWSI/16BALSA SIDESHINGE LINE A/1621/2RUD-ELEVRADIO COMR HATCH DETAIL HO WOODI/B SQ BALSA LONGERONS BALSA PUSHROOAND CROSS BRACES E VSUPPORTOPEN FRAMEWORK 11tH 1/B BALSA -V /SHEET I/B 4 BALSA / SHEET TO -4 ELEVATOR 332 BALSA SHEETPAPER CLIP JOINER BOTTOM TE PIN 1 TRAILING EDGE 3/16 SQ 1/4 SQ COCKPIT DETAIL BAa- RESTHEAD-REST I/8BALSAI/4BALSA 1/4DIA LBALSA INSTRUMENT PANEL 1/16 BALSA K7 KILL SWITCH 65 271-406 CHARGIN AMP JACK_ 0FUSE BAIT PACICSERVO ACTVD SW AS 275-046 MODEL AVIATION LAVLTh RJV 035 ELECTRIC --FORWARD HATCH DETAIL WING SPAN 44B WT 21 OZ AREA 290 SQ IN LOADING II OZ 0 2 3 4 5 K DESIGNED DRAWN BY KEN MARRON IThAj11113 low-wing design has always gripping model near center-of-gravity CG finger grips underside wing attempt solve problem prefer rudder-and-elevator configuration can made doubling dihedral angle 120 hinging rudder along dotted line shown plan Decide way want build model nowand lets begin building Wing construction Make rib template A2 plywood pin sheet of46 C grain stiff straight-grain balsa fas tening both onto cutting board method keeps template slipping helps ensure uniform results Have two scrap pieces 1/16 x -in spruce spar stock handy 14 ribs cut out place between two spar scraps check proper spar-notch fit ribs stacked between spar scraps add template front pile sand ribs its exact July1987 29 1/32 PLY DIHED BRACES Full-Size Plans Available Page 178 MT JOE bEjwMrnu last look centersection before sheeting hides Things note finger grips center rib spacing should adjusted now suit aileron servo outline Trim /i2 top bottom four ribs form W2s W3s eight 6 balsa vertical-grain shear webs cut 4-in-wide stock available otherwise half-width pieces cut 2- 3-in-wide stock butted tightly together will suffice top bottom trailing edge strips TE webs also cut 6 balsa Finally make dihedral braces Dl D2 A2 plywood rear brace D2 A6 narrower Dl allow 1A2in top bottom sheeting rest major parts made up way wing construction will move along quickly like use building board hinged middle order eliminate possibility building twist wing panels joined Prop up both sides hinged board two separate boards butted together middle dihedral brace Dl fits V flush surface both sides producing angle about 60 Cut wing pattern plans sheet fold half creasing along wing centerline Pin board cover plastic film Once wing finished can tape wing pattern back place using clear transparent tape entire model glued cyanoacrylate CyA unless otherwise specified wing built following se quence Bevel ends two pieces 6 x -in spruce spar material cut length Note bottom spar shorter top extends outer edge last Wl rib Join bevelled ends white glue pin spars place over plan Since hard push straight pins through hard spars use bulletin-board-type push pins positioned along length hold spars place semi-symmetrical airfoil its eas ier build wing bottom TE strips propped up shims run length TE Y16-sq piece front -in-sq toward rear edge work well Using few ribs spacers pin bottom TE strips place through shims glue butted edges together Starting tip wing panel glue down rib shear web TE web Continue until five Wl ribs wing half place Add top spars Y16-sq LE using white glue install front dihedral brace Dl clamp position clothespins remainder center-section pieces shimmed up 2 installed following order W2A W2B D2 white glue -in cross brace between ribs W2B lastly sections W3 ribs Space W3C sections suit aileron servo Finish installing TE webs top TE sheeting Add top bottom center-section sheeting Round off lead ing edge add wing tips finger grips remainder wing will completed after fuselage built Fuselage Cut sides two pieces medium-weight straight-grain V16 x 3 x 36-in balsa equal density will curve evenly Clamp both halves gether clothespins using balsa scraps prevent soft wood denting sand identical shape 30 Model Aviation positions Fl FlA P2 marked insides fuselage halves After squaring formers triangle glue half fuselage CyA Lon gerons doublers added before joining everthing must square After trial fit radio compartment floor position fuselage halves joined Use centerlines formers graph paper make alignment easier accurate Square up aides triangle right clamp place Temporarily wrap tape around body motor forget remove before running motor prevent sawdust entering half-round file remove just enough material nose doublers allow motorto slip through opening After white glue used attach radio compartment floor thoroughly dry pull nose clamp top bottom doublers place Flood jointswith CyA Nose details include locations OT doublers longerons hatch hold-down blocks radio compartment doublers forward hatch Cut out radio compartment doublers B remaining scrap Formers Fl F2 made hard -in balsa F lA either piece hard balsa two pieces -in balsa glued together four nose doublers cut medium-density -in balsa radio compartment floor /32 plywood Although cut out motor battery vent holes after fuselage constructed its easier sides flat cutting board sharpened piece ofMs ID brass tubing makes good tool Carefully mark off vertical centers Fl FlA F2 mark off locations inside fuselage halves Using triangle ensure accuracy glue formers Fl F2 half fuselage Orient former FlA its centerline faces toward rear Glue place white glue clamp together until dry Glue doublers B between formers making sure slit between wide enough accept floor Add Vs-in-sq balsa longerons attach -in nose doublers white glue Prepare other half fuselage gluing doublers B lon gerons leaving spaces formers F 1 F2 slide nose doublers Trial-fit sides together floor position sand down inside rear fuselage halves drawn together taper sfied fit disassemble pieces place bead white glue floor slots top FlA Fit sides floor back together Put C-clamps around fuselage F 1 F2 fuselage over plan orwith help some other alignment aid pull tail clamp position hespin everything lined up properly triangle shows sides square building board glue F 1 F2 tail place Let white glue dry thoroughly before continuing Draw line down center top bottom nose doublers help align ment Pull nose position doublers clamp place liberally hit joints CyA glue Finish fuselage adding 1/16 balsa top bottom nose area cross-grain sheeting -in balsa cross braces Use white glue three Vs x -in hardwood hatchhold-down blocks n rearwing-hold-down block Finally make up hatches 1/is balsa Nose Bulkhead Draw out bulkhead sheet l/~ plywood stock Cut slots drill holes cut out bulkhead itself During construction cover motor vent holes tape prevent sawdust getting remember remove tape before running motor Drill Yis-dia center hole motor first -in-dia motor mount ing holes Check see motor lines up properly air inlets formed drilling in-dia hole corner inlet filing out area between rattail file sanding block sand down front nose bulkhead will seat flush against front edges doublers must filed down slightly allow motor slip through opening Continued page 32 July 1987 31 strip aileron hardware epoxied grove filed along joint between trail ing edge balsa extension Light cloth epoxied overthe brasstublng adds strength rear vertical stab hanging over edge building board seated slot horizontal stab CyA two pieces together using triangle accuracy Additional strength obtained gluing piece 1/32 plywood underside TE balsa TE extension ply tapered blend sheeting finished framework readyforcovering should weigh about41/2 oz Pickone lighter covering materials keep overall weight down Atterthe model covered canopy attached fuselage narrow strip ironon covering material Im going flying words conjure up images battles balky engines instead carefree days field youre using McDaniel R/C NiStarterTM light plug NiStartersTM heavy-duty nicad power will provide up 50 reliable quick starts charge features famous Head LockTM adapter brass reinforcing ring around crimped end really extends its life works sideways inverted information well NiStarter works just go local flying field may have wait NiStartersTM always flying McDaniel RIC FIncorporated 12206 Guinevere Road enn Dale MD 20769 3011464-2260 Telex 287901 McD-UR K take hassle out hobby 32 Model Aviation Bolt motor bulkhead trialfit through opening Saturate front nose CyA glue slip motor bulkhead back position until adhesive sets up Unbolt motor round off corners nose fuselage eliminate boxy look Tail Section Build stabilizer fin over plan help square triangle assure 900 alignment glue fin its slot stab Attach assembled tail section fuselage using favorite method alignment round off edges Wing Mounting Check see wing rests properly its saddle add hold-down peg drilling A6-dla hole wing LE dihedral joint Cut 1in peg /16-dia music wire roughen up half file Drop some CyA glue hole roughened wire push wire hole Center wing saddle slide forward until tip music wire touches centerline F lA Make indentation Fl wire wing removed drill /~ hole through FlA Fl necessary elon gate hole rattail file proper wing seating Cut out two -in balsa TE exten sions wing back place fit between rear wing F2 glue wing Cut out 1 x 4-in piece of/32 plywood attach white glue underside TE balsa TE extension Clamp clothespins drying sanding block taper plywood blend center-section sheeting Drill holes through extensions sheet metal hold-down screws file grooves along joint TE extension piece accept brass tube strip aileron set Make up set roughen up brass tubes epoxy place Epoxy light fiberglass cloth fabric over added rein forcement Remember think light applying epoxy Align wing per fectly drill holes through holddown block accept sheet metal screws Covering Sand entire model lightly wipe down tack rag before covering lightweight material model presented covered Top Flite EconoKote has weight /s oz per sq ft After entire plane covered ailerons elevators hinged EconoKote follows Cut two strips covering material Ye x 12 Peel off backing overlap about adhesive sides facing other heatseal together Cut 1-in widths ailerons -in widths elevator apply surfaces over-and-under pattern Continued page 34 * Over $200000 prizes drawn * Guest appearance Ivan Kristensen *Trophies awanled foc best show best flyer best 4 cycle aircraft best sport scale aircraft *Frec intro lesson radio control flying *Fr sport shirt first 100 pilots *BARBQ cook Saturday evening *DOOr prizes spectators *Raffles airplane kits PARKING STEELES AVE IALBION RD C zREXDALE BLVD 0 HWY 401 Contact HUMBER VALLEY R/C FLYERS 105 Stiliwater Cr Willowdale Ont M2R-353 416 222-7509 ATT- CHEIC ON-Board Battery Tester Saves Time. Saves Models BATT-CHEK RX-1 7~$1495 NT P U Use TATON ES THRUST TESTER determine maximum engine output using different props fuel mixtures RPM levels Check engine aaainst another 34 Model Aviation NW Install RO Models Check receiver battery status press button Small Light /2 oz Precise Rugged ORDER TODAY dealer Protune corp t91 41462-6452 PO Boa 1808 Poughkeepsie NY 12601 OPTIMIZE YOUR ENGINES OUTPUT TATONES THRUST TESTER TATONE 30-13 ALUM MOTOR MOUNT ENGINE THROTTLE CONTROL SAFETY STARTING LOCK Canopy hope take time install headrest instrument panel well canopy since add lot appearance model radio compartment hatch screwed place trim bottom canopy conform its shape Cut away hatch covering interior details will placed before attaching After attaching interior details have someone hold canopy place attach hatch strips Y16-in-wide tape made covering materialfirst making sure theres no dust trapped inside Position tape carefully before applying heat method makes much stronger bond can achieved commercial trim stripping tape Radio installation elevator motor control servos mounted strips 46 plywood rest top doublers motor on-off microswitch Radio Shack #275-016 positioned left wall turned transmitter control stick trim tab full-throttle position Mark location attach switch epoxy use CyA glue chance will run inside switch render useless Motor installation Because battery pack permanently soldered motor cannot unplugged safety kill switch must installed system prevent accidental motor turn-on pos sible injury prop during trans porting range checking making adjustments Please eliminate it important safety feature constant torque small electric motor such should underestimated As further aid safety remove prop plane away flying field After charging jacks switches installed wired position receiver run its antenna back through fuse lage out hole near pushrod exit Position receiver battery pack get model balance correct CG tail built lightly shouldnt problem Charging vents fuselage sides above motor battery pack much cooling batteries flight dissipating heat during charging 6-amp 12-volt lead-acid start ing battery average condition has suf ficient charging capacity five six flights Little current drawn flight system no binding control surfaces pushrods 30 minutes flight time should expected 100 mAh battery using mini system Checking its condition between flights strongly advised however Trimming flying Elevator throw should about ailerons Continued page 136 FUNFLY 4- CYCLE EXTRAVAGANZA 2 cycle sport scale welcome JUNE 27 & 28 1987 Sponsored NATIONAL HOBBY stores CANADAS LARGEST 4CYCLE RALLY Toronto Ont Spectators $200 per person per day Pilot registration $1000 per day Noise limit 88db 7 meters enforeed DIRECT READING THRUST DIALONLY $6996 NOR THEA ST AEROD YNAMICS 61C LEBANON STREET ORD ME 04073 490-1881 TRAIN-AIR 20 TRAIN-AIR 40 SPORT-AIR 40 BEL-AIR 40 AO U See local dealer call us referral BEL-AIR 60 Safety Preston Continued page 22 wear gloves dust masks safety gog gles special clothing respirators Learn about chemicals materials what precautions should taken working Study warning labels have questions contact manu facturer ask safety data sheets can replace hazardous materials safer ones Store materials original containers keep covered Keep work area clean Wipe up flammable liquid spills immediately put soaked rags tightly-covered trash container Dispose chemicals properly have World famous kits Europe Large magnificent replicas over 4 feet long beautiful walnut mahogany planking fittings details exquisitely cast bronze brass rare hardwoods Large scale plans step-bystep instructions materials included VHS Video tapecassette howto build also available Send 64-pg full-color catalog $100 MODEL EXPO INC Dept MA-77S 23 Just Road Fairfield NJ 07007 Please send full color ship model catalog $100 enclosed Name questions about disposal contact local health fire department Dont work flammable materials near ignition source such open flame heater water heater cigarette suffer asthma emphysema aller gies heart condition check doctor about materials processes work pregnant ask doctor about continuing hobby also applies wives male hobbyists JP Space out sessions hobby give body time recover between pos sible exposures Ive previously mentioned number above DuPont safety tips dont think can hurt repeat continue see new comers enter hobby may aware some hazards associated products use Before leaving subject potentially haz ardous chemicals want mention two have seemingly similar names have very different properties methyl ethyl ketone MEK methyl ethyl ketone peroxide MEKP MEK solvent commonly used join styrene plastic products Chemically closely related ace tone addition being another common modeling solvent may well principal gredient wifes girlfriends nail polish remover recent letter claimed writer told never allow MEK come contact ones skin since readily ab sorbed ones system will stay until die letter-writer also stated told MEK will cause permanent blind ness upon contact eyeball latter statement leads believe confusing MEK MEKP Methyl ethyl ketone peroxide MEKP clear liquid hardener accompanies polyester resin strong oxidizer extreme care should taken avoid getting drop ones eye Such mishap could well result permanent eye damage blindness would rather get drop methyl ethyl ketone MEK eye does present anywhere near same hazard eyes does MEKP eyes immediately flushed water upon contact MEK no lasting damage should result Similarly am aware MEK presents hazard due skin contact Cyanoacrylate CyA glues have also con fused MEKP some letter-writers writers believed mere drop CyA eye would result instant blindness drop CyA glue eye may well cause eyelids become stuck together likely will very uncomfortable its likely will result permanent damage However would urge take precautions against getting anything eye days ever find time would like list various chemicals use hobby together associated hazards handling precautions Meanwhile urge take care John Preston 2812 Northampton St N W Washington DC 20015 Low Voltage/Marron Continued page 34 /I6 Make sure kill switch off position check controls working properly right direction Since plane light glides well its easy trim out standing top small hill firmly throwing power nose level slightly down wind Make whatever adjustments necessary before attempting powered flight Top Flite nylon 6 x 4 prop installed turn kill switch check proper control surface movement start motor Launch model good shove nose down prevent stall let fly straight level until picks up speed Start feeding some up elevator remembering small electric motor doesnt have much power snarling glow engine Low Voltage has gained some height heart starts beating nor mally again put through some maneuvers get feel control responses Make mental notes adjustments may needed After about 4 5 min will hear whine motor noticeably decrease pitch model wont climb Its time shut off mjttor prepare landing ailerons effective down stall speed experienced landing planes landing gear will pleasantly surprised ease accomplished responding advertisers mention read about ModelAviation 136 Model Aviation city State_____________________ Zip
Edition: Model Aviation - 1987/07
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 31, 32, 34, 136
NO OCR TEXT NO OCR TEXT Above inupy unu uuuput uuiau iuup wau umi uuu easily made See text fordetalis securing canopy finger grips greatly simpilfy gripping hand-iaunches slicker iook antenna runs through fuseiage before exiting Radio Shack microswitch left provides motor on/off control through radio very important also install manual motor kill switch well batteVs hard-wired plugged circuit manual switch safety feature should overlooked Finger grips wing make easier safer hold onto airplane Balanced comfortably between thumb index finger positive control launching 26 Model Aviation urapnic aetails personaiize your air piane case iettering pressuresensitive vinyl applied top MonoKate trim sheet lightening bolt MonoKote straightforward aileron control instaila trim striping tape Goldberg tion uses Du-Bro 1/2A aileron package 5ecause OT fla quietne. ana ama rne modei can have tooiing around iocal sports fields open area impromp tu flying sessions aimost hasslefree modei grooves weli dont expect verticai performance takeoff NO OCR TEXT time setting up approach model easily flown anyone average sport flying capabilitiesbeing Spars held plan bulletin board push pins line along top spar guide aligning shear webs gluing place trail ing edge propped up lengths balsa maneuverable stable predictable being fast simple design keeps construction time minimumand holds weight down completed ready-tofly model should weigh between 20 23 difficulties hand-launching rap SFSR TIP BOTTOM SFSR TIP / \ \ \ 3/32 BALSA KyHEET WHO Ps 1/16 BALSA VS GRAIl WEBS WI 1/IS BALSA SHEET TE -lOP 8 BOTTOM wI I/I6B WEBS 3/32 AILEF F DIHEDRAL BRACES WING TiP DETA L 1/B BALSA SHEET--BTOP~BOT NOSE SARADIO C SHEE F-Ir77 SIDE NOSEV DOUBLERSL2 F-IA 1/4Vi BALSALL NOSEBATT COOL- RADII HG HOLES BULKHEAD1/Bc 1/4 T/I6DIAL16 BALSA HATa CROSS F-I ASIRO 035GRAIN 14 o oo _ 44 SOO MA I/IS PLY ILXMNr 7 MOTOM MOI*4TIF4G SCREWS 4-40 I/BA1/16 BALSACA 1/8 BALSA DOUBFuse CROSS GRAIN MOIS COSF Fl \I/S2PtY\ 1/16 BALSA SHEET 1/6 BALSA TOP TTOM DOUBLERS After pinning down spars trailing edge add ribs webs tip root Adding webs before top spar installed much easier wedging later 28 Model Aviation completed prototype wing horizontal vertical stabilizers main fuselage parts ready assembly wing has tip rib spaced closer shown plans scrap pieces spar material notches stackthe ribsforalignmentand sand match pattern spar trailing edge shear webs cut 4-in-wide balsa I/lB DIA MUSIC WIRE NGLD DOWN PBO1/32 BALSA SHEET3/16 SQ BALSA TOP B BOTTOMLEADING EDGE W-IW-2 FINGER GRIP 1/16 BALSA L8 BALSA CROSS BRACE W-3 D-2 -~ E di HARD WOOO O MOUNTS WING 11W1 PLAN 1/16 C GRA- BALSA RIBS HINGE TO SUIT W-I TOP 1/4x 1/16 SPRUCE SPARS W-IWI VIEW - _ 4 ___ TE EXTENSIONS TOP I/B BALSA BOTTOM 1/32 PLY 1/8SO HO BALSA LEADING EDGEj 1/2 STRIP AlL AGE1/16 BALSAFIN SLOT FINGER GRIPS / LEV2 REQ REQDETAILSHEETINGSTILIZE PLY-T -_____________________ REQ_______ CUT LINES I 2REO - ___ 2 REQ BC v--0 -REQ REQ- -2 AB1/B BALSA BLERS-REQSHEET 1/8 BALSAF-2 1/32 PLYALL RIBS 1/16 C GRAIN BALSAFIN 0OR7 ROYAL MILITARY CANGPY 1/8, 3A6 BALSA INSTRUMENTS DRAWN ON MOTOR SWITCH /B BALSA SHEET HITE PAPER B GLUED 1/8 I/4 HQ WOODI/B SQ BALSATO REAR OF PANEL WOOD SCREWSSTAB LEFRONT HOLD DOWNI/BBALSA 1A6 1/4 HO WOOD1/16HOLES CUT WITH --- / 7BALSA3/16 ID BRASS lUBE IiL~tW FUSELAGE SIDE.--ISHEET jL2zzrThVILWHRU STAB KiN KEYED 183" 4-1/2SCREWSI/16BALSA SIDESHINGE LINE A/1621/2RUD-ELEVRADIO COMR HATCH DETAIL HO WOODI/B SQ BALSA LONGERONS BALSA PUSHROOAND CROSS BRACES E VSUPPORTOPEN FRAMEWORK 11tH 1/B BALSA -V /SHEET I/B 4 BALSA / SHEET TO -4 ELEVATOR 332 BALSA SHEETPAPER CLIP JOINER BOTTOM TE PIN 1 TRAILING EDGE 3/16 SQ 1/4 SQ COCKPIT DETAIL BAa- RESTHEAD-REST I/8BALSAI/4BALSA 1/4DIA LBALSA INSTRUMENT PANEL 1/16 BALSA K7 KILL SWITCH 65 271-406 CHARGIN AMP JACK_ 0FUSE BAIT PACICSERVO ACTVD SW AS 275-046 MODEL AVIATION LAVLTh RJV 035 ELECTRIC --FORWARD HATCH DETAIL WING SPAN 44B WT 21 OZ AREA 290 SQ IN LOADING II OZ 0 2 3 4 5 K DESIGNED DRAWN BY KEN MARRON IThAj11113 low-wing design has always gripping model near center-of-gravity CG finger grips underside wing attempt solve problem prefer rudder-and-elevator configuration can made doubling dihedral angle 120 hinging rudder along dotted line shown plan Decide way want build model nowand lets begin building Wing construction Make rib template A2 plywood pin sheet of46 C grain stiff straight-grain balsa fas tening both onto cutting board method keeps template slipping helps ensure uniform results Have two scrap pieces 1/16 x -in spruce spar stock handy 14 ribs cut out place between two spar scraps check proper spar-notch fit ribs stacked between spar scraps add template front pile sand ribs its exact July1987 29 1/32 PLY DIHED BRACES Full-Size Plans Available Page 178 MT JOE bEjwMrnu last look centersection before sheeting hides Things note finger grips center rib spacing should adjusted now suit aileron servo outline Trim /i2 top bottom four ribs form W2s W3s eight 6 balsa vertical-grain shear webs cut 4-in-wide stock available otherwise half-width pieces cut 2- 3-in-wide stock butted tightly together will suffice top bottom trailing edge strips TE webs also cut 6 balsa Finally make dihedral braces Dl D2 A2 plywood rear brace D2 A6 narrower Dl allow 1A2in top bottom sheeting rest major parts made up way wing construction will move along quickly like use building board hinged middle order eliminate possibility building twist wing panels joined Prop up both sides hinged board two separate boards butted together middle dihedral brace Dl fits V flush surface both sides producing angle about 60 Cut wing pattern plans sheet fold half creasing along wing centerline Pin board cover plastic film Once wing finished can tape wing pattern back place using clear transparent tape entire model glued cyanoacrylate CyA unless otherwise specified wing built following se quence Bevel ends two pieces 6 x -in spruce spar material cut length Note bottom spar shorter top extends outer edge last Wl rib Join bevelled ends white glue pin spars place over plan Since hard push straight pins through hard spars use bulletin-board-type push pins positioned along length hold spars place semi-symmetrical airfoil its eas ier build wing bottom TE strips propped up shims run length TE Y16-sq piece front -in-sq toward rear edge work well Using few ribs spacers pin bottom TE strips place through shims glue butted edges together Starting tip wing panel glue down rib shear web TE web Continue until five Wl ribs wing half place Add top spars Y16-sq LE using white glue install front dihedral brace Dl clamp position clothespins remainder center-section pieces shimmed up 2 installed following order W2A W2B D2 white glue -in cross brace between ribs W2B lastly sections W3 ribs Space W3C sections suit aileron servo Finish installing TE webs top TE sheeting Add top bottom center-section sheeting Round off lead ing edge add wing tips finger grips remainder wing will completed after fuselage built Fuselage Cut sides two pieces medium-weight straight-grain V16 x 3 x 36-in balsa equal density will curve evenly Clamp both halves gether clothespins using balsa scraps prevent soft wood denting sand identical shape 30 Model Aviation positions Fl FlA P2 marked insides fuselage halves After squaring formers triangle glue half fuselage CyA Lon gerons doublers added before joining everthing must square After trial fit radio compartment floor position fuselage halves joined Use centerlines formers graph paper make alignment easier accurate Square up aides triangle right clamp place Temporarily wrap tape around body motor forget remove before running motor prevent sawdust entering half-round file remove just enough material nose doublers allow motorto slip through opening After white glue used attach radio compartment floor thoroughly dry pull nose clamp top bottom doublers place Flood jointswith CyA Nose details include locations OT doublers longerons hatch hold-down blocks radio compartment doublers forward hatch Cut out radio compartment doublers B remaining scrap Formers Fl F2 made hard -in balsa F lA either piece hard balsa two pieces -in balsa glued together four nose doublers cut medium-density -in balsa radio compartment floor /32 plywood Although cut out motor battery vent holes after fuselage constructed its easier sides flat cutting board sharpened piece ofMs ID brass tubing makes good tool Carefully mark off vertical centers Fl FlA F2 mark off locations inside fuselage halves Using triangle ensure accuracy glue formers Fl F2 half fuselage Orient former FlA its centerline faces toward rear Glue place white glue clamp together until dry Glue doublers B between formers making sure slit between wide enough accept floor Add Vs-in-sq balsa longerons attach -in nose doublers white glue Prepare other half fuselage gluing doublers B lon gerons leaving spaces formers F 1 F2 slide nose doublers Trial-fit sides together floor position sand down inside rear fuselage halves drawn together taper sfied fit disassemble pieces place bead white glue floor slots top FlA Fit sides floor back together Put C-clamps around fuselage F 1 F2 fuselage over plan orwith help some other alignment aid pull tail clamp position hespin everything lined up properly triangle shows sides square building board glue F 1 F2 tail place Let white glue dry thoroughly before continuing Draw line down center top bottom nose doublers help align ment Pull nose position doublers clamp place liberally hit joints CyA glue Finish fuselage adding 1/16 balsa top bottom nose area cross-grain sheeting -in balsa cross braces Use white glue three Vs x -in hardwood hatchhold-down blocks n rearwing-hold-down block Finally make up hatches 1/is balsa Nose Bulkhead Draw out bulkhead sheet l/~ plywood stock Cut slots drill holes cut out bulkhead itself During construction cover motor vent holes tape prevent sawdust getting remember remove tape before running motor Drill Yis-dia center hole motor first -in-dia motor mount ing holes Check see motor lines up properly air inlets formed drilling in-dia hole corner inlet filing out area between rattail file sanding block sand down front nose bulkhead will seat flush against front edges doublers must filed down slightly allow motor slip through opening Continued page 32 July 1987 31 strip aileron hardware epoxied grove filed along joint between trail ing edge balsa extension Light cloth epoxied overthe brasstublng adds strength rear vertical stab hanging over edge building board seated slot horizontal stab CyA two pieces together using triangle accuracy Additional strength obtained gluing piece 1/32 plywood underside TE balsa TE extension ply tapered blend sheeting finished framework readyforcovering should weigh about41/2 oz Pickone lighter covering materials keep overall weight down Atterthe model covered canopy attached fuselage narrow strip ironon covering material Im going flying words conjure up images battles balky engines instead carefree days field youre using McDaniel R/C NiStarterTM light plug NiStartersTM heavy-duty nicad power will provide up 50 reliable quick starts charge features famous Head LockTM adapter brass reinforcing ring around crimped end really extends its life works sideways inverted information well NiStarter works just go local flying field may have wait NiStartersTM always flying McDaniel RIC FIncorporated 12206 Guinevere Road enn Dale MD 20769 3011464-2260 Telex 287901 McD-UR K take hassle out hobby 32 Model Aviation Bolt motor bulkhead trialfit through opening Saturate front nose CyA glue slip motor bulkhead back position until adhesive sets up Unbolt motor round off corners nose fuselage eliminate boxy look Tail Section Build stabilizer fin over plan help square triangle assure 900 alignment glue fin its slot stab Attach assembled tail section fuselage using favorite method alignment round off edges Wing Mounting Check see wing rests properly its saddle add hold-down peg drilling A6-dla hole wing LE dihedral joint Cut 1in peg /16-dia music wire roughen up half file Drop some CyA glue hole roughened wire push wire hole Center wing saddle slide forward until tip music wire touches centerline F lA Make indentation Fl wire wing removed drill /~ hole through FlA Fl necessary elon gate hole rattail file proper wing seating Cut out two -in balsa TE exten sions wing back place fit between rear wing F2 glue wing Cut out 1 x 4-in piece of/32 plywood attach white glue underside TE balsa TE extension Clamp clothespins drying sanding block taper plywood blend center-section sheeting Drill holes through extensions sheet metal hold-down screws file grooves along joint TE extension piece accept brass tube strip aileron set Make up set roughen up brass tubes epoxy place Epoxy light fiberglass cloth fabric over added rein forcement Remember think light applying epoxy Align wing per fectly drill holes through holddown block accept sheet metal screws Covering Sand entire model lightly wipe down tack rag before covering lightweight material model presented covered Top Flite EconoKote has weight /s oz per sq ft After entire plane covered ailerons elevators hinged EconoKote follows Cut two strips covering material Ye x 12 Peel off backing overlap about adhesive sides facing other heatseal together Cut 1-in widths ailerons -in widths elevator apply surfaces over-and-under pattern Continued page 34 * Over $200000 prizes drawn * Guest appearance Ivan Kristensen *Trophies awanled foc best show best flyer best 4 cycle aircraft best sport scale aircraft *Frec intro lesson radio control flying *Fr sport shirt first 100 pilots *BARBQ cook Saturday evening *DOOr prizes spectators *Raffles airplane kits PARKING STEELES AVE IALBION RD C zREXDALE BLVD 0 HWY 401 Contact HUMBER VALLEY R/C FLYERS 105 Stiliwater Cr Willowdale Ont M2R-353 416 222-7509 ATT- CHEIC ON-Board Battery Tester Saves Time. Saves Models BATT-CHEK RX-1 7~$1495 NT P U Use TATON ES THRUST TESTER determine maximum engine output using different props fuel mixtures RPM levels Check engine aaainst another 34 Model Aviation NW Install RO Models Check receiver battery status press button Small Light /2 oz Precise Rugged ORDER TODAY dealer Protune corp t91 41462-6452 PO Boa 1808 Poughkeepsie NY 12601 OPTIMIZE YOUR ENGINES OUTPUT TATONES THRUST TESTER TATONE 30-13 ALUM MOTOR MOUNT ENGINE THROTTLE CONTROL SAFETY STARTING LOCK Canopy hope take time install headrest instrument panel well canopy since add lot appearance model radio compartment hatch screwed place trim bottom canopy conform its shape Cut away hatch covering interior details will placed before attaching After attaching interior details have someone hold canopy place attach hatch strips Y16-in-wide tape made covering materialfirst making sure theres no dust trapped inside Position tape carefully before applying heat method makes much stronger bond can achieved commercial trim stripping tape Radio installation elevator motor control servos mounted strips 46 plywood rest top doublers motor on-off microswitch Radio Shack #275-016 positioned left wall turned transmitter control stick trim tab full-throttle position Mark location attach switch epoxy use CyA glue chance will run inside switch render useless Motor installation Because battery pack permanently soldered motor cannot unplugged safety kill switch must installed system prevent accidental motor turn-on pos sible injury prop during trans porting range checking making adjustments Please eliminate it important safety feature constant torque small electric motor such should underestimated As further aid safety remove prop plane away flying field After charging jacks switches installed wired position receiver run its antenna back through fuse lage out hole near pushrod exit Position receiver battery pack get model balance correct CG tail built lightly shouldnt problem Charging vents fuselage sides above motor battery pack much cooling batteries flight dissipating heat during charging 6-amp 12-volt lead-acid start ing battery average condition has suf ficient charging capacity five six flights Little current drawn flight system no binding control surfaces pushrods 30 minutes flight time should expected 100 mAh battery using mini system Checking its condition between flights strongly advised however Trimming flying Elevator throw should about ailerons Continued page 136 FUNFLY 4- CYCLE EXTRAVAGANZA 2 cycle sport scale welcome JUNE 27 & 28 1987 Sponsored NATIONAL HOBBY stores CANADAS LARGEST 4CYCLE RALLY Toronto Ont Spectators $200 per person per day Pilot registration $1000 per day Noise limit 88db 7 meters enforeed DIRECT READING THRUST DIALONLY $6996 NOR THEA ST AEROD YNAMICS 61C LEBANON STREET ORD ME 04073 490-1881 TRAIN-AIR 20 TRAIN-AIR 40 SPORT-AIR 40 BEL-AIR 40 AO U See local dealer call us referral BEL-AIR 60 Safety Preston Continued page 22 wear gloves dust masks safety gog gles special clothing respirators Learn about chemicals materials what precautions should taken working Study warning labels have questions contact manu facturer ask safety data sheets can replace hazardous materials safer ones Store materials original containers keep covered Keep work area clean Wipe up flammable liquid spills immediately put soaked rags tightly-covered trash container Dispose chemicals properly have World famous kits Europe Large magnificent replicas over 4 feet long beautiful walnut mahogany planking fittings details exquisitely cast bronze brass rare hardwoods Large scale plans step-bystep instructions materials included VHS Video tapecassette howto build also available Send 64-pg full-color catalog $100 MODEL EXPO INC Dept MA-77S 23 Just Road Fairfield NJ 07007 Please send full color ship model catalog $100 enclosed Name questions about disposal contact local health fire department Dont work flammable materials near ignition source such open flame heater water heater cigarette suffer asthma emphysema aller gies heart condition check doctor about materials processes work pregnant ask doctor about continuing hobby also applies wives male hobbyists JP Space out sessions hobby give body time recover between pos sible exposures Ive previously mentioned number above DuPont safety tips dont think can hurt repeat continue see new comers enter hobby may aware some hazards associated products use Before leaving subject potentially haz ardous chemicals want mention two have seemingly similar names have very different properties methyl ethyl ketone MEK methyl ethyl ketone peroxide MEKP MEK solvent commonly used join styrene plastic products Chemically closely related ace tone addition being another common modeling solvent may well principal gredient wifes girlfriends nail polish remover recent letter claimed writer told never allow MEK come contact ones skin since readily ab sorbed ones system will stay until die letter-writer also stated told MEK will cause permanent blind ness upon contact eyeball latter statement leads believe confusing MEK MEKP Methyl ethyl ketone peroxide MEKP clear liquid hardener accompanies polyester resin strong oxidizer extreme care should taken avoid getting drop ones eye Such mishap could well result permanent eye damage blindness would rather get drop methyl ethyl ketone MEK eye does present anywhere near same hazard eyes does MEKP eyes immediately flushed water upon contact MEK no lasting damage should result Similarly am aware MEK presents hazard due skin contact Cyanoacrylate CyA glues have also con fused MEKP some letter-writers writers believed mere drop CyA eye would result instant blindness drop CyA glue eye may well cause eyelids become stuck together likely will very uncomfortable its likely will result permanent damage However would urge take precautions against getting anything eye days ever find time would like list various chemicals use hobby together associated hazards handling precautions Meanwhile urge take care John Preston 2812 Northampton St N W Washington DC 20015 Low Voltage/Marron Continued page 34 /I6 Make sure kill switch off position check controls working properly right direction Since plane light glides well its easy trim out standing top small hill firmly throwing power nose level slightly down wind Make whatever adjustments necessary before attempting powered flight Top Flite nylon 6 x 4 prop installed turn kill switch check proper control surface movement start motor Launch model good shove nose down prevent stall let fly straight level until picks up speed Start feeding some up elevator remembering small electric motor doesnt have much power snarling glow engine Low Voltage has gained some height heart starts beating nor mally again put through some maneuvers get feel control responses Make mental notes adjustments may needed After about 4 5 min will hear whine motor noticeably decrease pitch model wont climb Its time shut off mjttor prepare landing ailerons effective down stall speed experienced landing planes landing gear will pleasantly surprised ease accomplished responding advertisers mention read about ModelAviation 136 Model Aviation city State_____________________ Zip
Edition: Model Aviation - 1987/07
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 31, 32, 34, 136
NO OCR TEXT NO OCR TEXT Above inupy unu uuuput uuiau iuup wau umi uuu easily made See text fordetalis securing canopy finger grips greatly simpilfy gripping hand-iaunches slicker iook antenna runs through fuseiage before exiting Radio Shack microswitch left provides motor on/off control through radio very important also install manual motor kill switch well batteVs hard-wired plugged circuit manual switch safety feature should overlooked Finger grips wing make easier safer hold onto airplane Balanced comfortably between thumb index finger positive control launching 26 Model Aviation urapnic aetails personaiize your air piane case iettering pressuresensitive vinyl applied top MonoKate trim sheet lightening bolt MonoKote straightforward aileron control instaila trim striping tape Goldberg tion uses Du-Bro 1/2A aileron package 5ecause OT fla quietne. ana ama rne modei can have tooiing around iocal sports fields open area impromp tu flying sessions aimost hasslefree modei grooves weli dont expect verticai performance takeoff NO OCR TEXT time setting up approach model easily flown anyone average sport flying capabilitiesbeing Spars held plan bulletin board push pins line along top spar guide aligning shear webs gluing place trail ing edge propped up lengths balsa maneuverable stable predictable being fast simple design keeps construction time minimumand holds weight down completed ready-tofly model should weigh between 20 23 difficulties hand-launching rap SFSR TIP BOTTOM SFSR TIP / \ \ \ 3/32 BALSA KyHEET WHO Ps 1/16 BALSA VS GRAIl WEBS WI 1/IS BALSA SHEET TE -lOP 8 BOTTOM wI I/I6B WEBS 3/32 AILEF F DIHEDRAL BRACES WING TiP DETA L 1/B BALSA SHEET--BTOP~BOT NOSE SARADIO C SHEE F-Ir77 SIDE NOSEV DOUBLERSL2 F-IA 1/4Vi BALSALL NOSEBATT COOL- RADII HG HOLES BULKHEAD1/Bc 1/4 T/I6DIAL16 BALSA HATa CROSS F-I ASIRO 035GRAIN 14 o oo _ 44 SOO MA I/IS PLY ILXMNr 7 MOTOM MOI*4TIF4G SCREWS 4-40 I/BA1/16 BALSACA 1/8 BALSA DOUBFuse CROSS GRAIN MOIS COSF Fl \I/S2PtY\ 1/16 BALSA SHEET 1/6 BALSA TOP TTOM DOUBLERS After pinning down spars trailing edge add ribs webs tip root Adding webs before top spar installed much easier wedging later 28 Model Aviation completed prototype wing horizontal vertical stabilizers main fuselage parts ready assembly wing has tip rib spaced closer shown plans scrap pieces spar material notches stackthe ribsforalignmentand sand match pattern spar trailing edge shear webs cut 4-in-wide balsa I/lB DIA MUSIC WIRE NGLD DOWN PBO1/32 BALSA SHEET3/16 SQ BALSA TOP B BOTTOMLEADING EDGE W-IW-2 FINGER GRIP 1/16 BALSA L8 BALSA CROSS BRACE W-3 D-2 -~ E di HARD WOOO O MOUNTS WING 11W1 PLAN 1/16 C GRA- BALSA RIBS HINGE TO SUIT W-I TOP 1/4x 1/16 SPRUCE SPARS W-IWI VIEW - _ 4 ___ TE EXTENSIONS TOP I/B BALSA BOTTOM 1/32 PLY 1/8SO HO BALSA LEADING EDGEj 1/2 STRIP AlL AGE1/16 BALSAFIN SLOT FINGER GRIPS / LEV2 REQ REQDETAILSHEETINGSTILIZE PLY-T -_____________________ REQ_______ CUT LINES I 2REO - ___ 2 REQ BC v--0 -REQ REQ- -2 AB1/B BALSA BLERS-REQSHEET 1/8 BALSAF-2 1/32 PLYALL RIBS 1/16 C GRAIN BALSAFIN 0OR7 ROYAL MILITARY CANGPY 1/8, 3A6 BALSA INSTRUMENTS DRAWN ON MOTOR SWITCH /B BALSA SHEET HITE PAPER B GLUED 1/8 I/4 HQ WOODI/B SQ BALSATO REAR OF PANEL WOOD SCREWSSTAB LEFRONT HOLD DOWNI/BBALSA 1A6 1/4 HO WOOD1/16HOLES CUT WITH --- / 7BALSA3/16 ID BRASS lUBE IiL~tW FUSELAGE SIDE.--ISHEET jL2zzrThVILWHRU STAB KiN KEYED 183" 4-1/2SCREWSI/16BALSA SIDESHINGE LINE A/1621/2RUD-ELEVRADIO COMR HATCH DETAIL HO WOODI/B SQ BALSA LONGERONS BALSA PUSHROOAND CROSS BRACES E VSUPPORTOPEN FRAMEWORK 11tH 1/B BALSA -V /SHEET I/B 4 BALSA / SHEET TO -4 ELEVATOR 332 BALSA SHEETPAPER CLIP JOINER BOTTOM TE PIN 1 TRAILING EDGE 3/16 SQ 1/4 SQ COCKPIT DETAIL BAa- RESTHEAD-REST I/8BALSAI/4BALSA 1/4DIA LBALSA INSTRUMENT PANEL 1/16 BALSA K7 KILL SWITCH 65 271-406 CHARGIN AMP JACK_ 0FUSE BAIT PACICSERVO ACTVD SW AS 275-046 MODEL AVIATION LAVLTh RJV 035 ELECTRIC --FORWARD HATCH DETAIL WING SPAN 44B WT 21 OZ AREA 290 SQ IN LOADING II OZ 0 2 3 4 5 K DESIGNED DRAWN BY KEN MARRON IThAj11113 low-wing design has always gripping model near center-of-gravity CG finger grips underside wing attempt solve problem prefer rudder-and-elevator configuration can made doubling dihedral angle 120 hinging rudder along dotted line shown plan Decide way want build model nowand lets begin building Wing construction Make rib template A2 plywood pin sheet of46 C grain stiff straight-grain balsa fas tening both onto cutting board method keeps template slipping helps ensure uniform results Have two scrap pieces 1/16 x -in spruce spar stock handy 14 ribs cut out place between two spar scraps check proper spar-notch fit ribs stacked between spar scraps add template front pile sand ribs its exact July1987 29 1/32 PLY DIHED BRACES Full-Size Plans Available Page 178 MT JOE bEjwMrnu last look centersection before sheeting hides Things note finger grips center rib spacing should adjusted now suit aileron servo outline Trim /i2 top bottom four ribs form W2s W3s eight 6 balsa vertical-grain shear webs cut 4-in-wide stock available otherwise half-width pieces cut 2- 3-in-wide stock butted tightly together will suffice top bottom trailing edge strips TE webs also cut 6 balsa Finally make dihedral braces Dl D2 A2 plywood rear brace D2 A6 narrower Dl allow 1A2in top bottom sheeting rest major parts made up way wing construction will move along quickly like use building board hinged middle order eliminate possibility building twist wing panels joined Prop up both sides hinged board two separate boards butted together middle dihedral brace Dl fits V flush surface both sides producing angle about 60 Cut wing pattern plans sheet fold half creasing along wing centerline Pin board cover plastic film Once wing finished can tape wing pattern back place using clear transparent tape entire model glued cyanoacrylate CyA unless otherwise specified wing built following se quence Bevel ends two pieces 6 x -in spruce spar material cut length Note bottom spar shorter top extends outer edge last Wl rib Join bevelled ends white glue pin spars place over plan Since hard push straight pins through hard spars use bulletin-board-type push pins positioned along length hold spars place semi-symmetrical airfoil its eas ier build wing bottom TE strips propped up shims run length TE Y16-sq piece front -in-sq toward rear edge work well Using few ribs spacers pin bottom TE strips place through shims glue butted edges together Starting tip wing panel glue down rib shear web TE web Continue until five Wl ribs wing half place Add top spars Y16-sq LE using white glue install front dihedral brace Dl clamp position clothespins remainder center-section pieces shimmed up 2 installed following order W2A W2B D2 white glue -in cross brace between ribs W2B lastly sections W3 ribs Space W3C sections suit aileron servo Finish installing TE webs top TE sheeting Add top bottom center-section sheeting Round off lead ing edge add wing tips finger grips remainder wing will completed after fuselage built Fuselage Cut sides two pieces medium-weight straight-grain V16 x 3 x 36-in balsa equal density will curve evenly Clamp both halves gether clothespins using balsa scraps prevent soft wood denting sand identical shape 30 Model Aviation positions Fl FlA P2 marked insides fuselage halves After squaring formers triangle glue half fuselage CyA Lon gerons doublers added before joining everthing must square After trial fit radio compartment floor position fuselage halves joined Use centerlines formers graph paper make alignment easier accurate Square up aides triangle right clamp place Temporarily wrap tape around body motor forget remove before running motor prevent sawdust entering half-round file remove just enough material nose doublers allow motorto slip through opening After white glue used attach radio compartment floor thoroughly dry pull nose clamp top bottom doublers place Flood jointswith CyA Nose details include locations OT doublers longerons hatch hold-down blocks radio compartment doublers forward hatch Cut out radio compartment doublers B remaining scrap Formers Fl F2 made hard -in balsa F lA either piece hard balsa two pieces -in balsa glued together four nose doublers cut medium-density -in balsa radio compartment floor /32 plywood Although cut out motor battery vent holes after fuselage constructed its easier sides flat cutting board sharpened piece ofMs ID brass tubing makes good tool Carefully mark off vertical centers Fl FlA F2 mark off locations inside fuselage halves Using triangle ensure accuracy glue formers Fl F2 half fuselage Orient former FlA its centerline faces toward rear Glue place white glue clamp together until dry Glue doublers B between formers making sure slit between wide enough accept floor Add Vs-in-sq balsa longerons attach -in nose doublers white glue Prepare other half fuselage gluing doublers B lon gerons leaving spaces formers F 1 F2 slide nose doublers Trial-fit sides together floor position sand down inside rear fuselage halves drawn together taper sfied fit disassemble pieces place bead white glue floor slots top FlA Fit sides floor back together Put C-clamps around fuselage F 1 F2 fuselage over plan orwith help some other alignment aid pull tail clamp position hespin everything lined up properly triangle shows sides square building board glue F 1 F2 tail place Let white glue dry thoroughly before continuing Draw line down center top bottom nose doublers help align ment Pull nose position doublers clamp place liberally hit joints CyA glue Finish fuselage adding 1/16 balsa top bottom nose area cross-grain sheeting -in balsa cross braces Use white glue three Vs x -in hardwood hatchhold-down blocks n rearwing-hold-down block Finally make up hatches 1/is balsa Nose Bulkhead Draw out bulkhead sheet l/~ plywood stock Cut slots drill holes cut out bulkhead itself During construction cover motor vent holes tape prevent sawdust getting remember remove tape before running motor Drill Yis-dia center hole motor first -in-dia motor mount ing holes Check see motor lines up properly air inlets formed drilling in-dia hole corner inlet filing out area between rattail file sanding block sand down front nose bulkhead will seat flush against front edges doublers must filed down slightly allow motor slip through opening Continued page 32 July 1987 31 strip aileron hardware epoxied grove filed along joint between trail ing edge balsa extension Light cloth epoxied overthe brasstublng adds strength rear vertical stab hanging over edge building board seated slot horizontal stab CyA two pieces together using triangle accuracy Additional strength obtained gluing piece 1/32 plywood underside TE balsa TE extension ply tapered blend sheeting finished framework readyforcovering should weigh about41/2 oz Pickone lighter covering materials keep overall weight down Atterthe model covered canopy attached fuselage narrow strip ironon covering material Im going flying words conjure up images battles balky engines instead carefree days field youre using McDaniel R/C NiStarterTM light plug NiStartersTM heavy-duty nicad power will provide up 50 reliable quick starts charge features famous Head LockTM adapter brass reinforcing ring around crimped end really extends its life works sideways inverted information well NiStarter works just go local flying field may have wait NiStartersTM always flying McDaniel RIC FIncorporated 12206 Guinevere Road enn Dale MD 20769 3011464-2260 Telex 287901 McD-UR K take hassle out hobby 32 Model Aviation Bolt motor bulkhead trialfit through opening Saturate front nose CyA glue slip motor bulkhead back position until adhesive sets up Unbolt motor round off corners nose fuselage eliminate boxy look Tail Section Build stabilizer fin over plan help square triangle assure 900 alignment glue fin its slot stab Attach assembled tail section fuselage using favorite method alignment round off edges Wing Mounting Check see wing rests properly its saddle add hold-down peg drilling A6-dla hole wing LE dihedral joint Cut 1in peg /16-dia music wire roughen up half file Drop some CyA glue hole roughened wire push wire hole Center wing saddle slide forward until tip music wire touches centerline F lA Make indentation Fl wire wing removed drill /~ hole through FlA Fl necessary elon gate hole rattail file proper wing seating Cut out two -in balsa TE exten sions wing back place fit between rear wing F2 glue wing Cut out 1 x 4-in piece of/32 plywood attach white glue underside TE balsa TE extension Clamp clothespins drying sanding block taper plywood blend center-section sheeting Drill holes through extensions sheet metal hold-down screws file grooves along joint TE extension piece accept brass tube strip aileron set Make up set roughen up brass tubes epoxy place Epoxy light fiberglass cloth fabric over added rein forcement Remember think light applying epoxy Align wing per fectly drill holes through holddown block accept sheet metal screws Covering Sand entire model lightly wipe down tack rag before covering lightweight material model presented covered Top Flite EconoKote has weight /s oz per sq ft After entire plane covered ailerons elevators hinged EconoKote follows Cut two strips covering material Ye x 12 Peel off backing overlap about adhesive sides facing other heatseal together Cut 1-in widths ailerons -in widths elevator apply surfaces over-and-under pattern Continued page 34 * Over $200000 prizes drawn * Guest appearance Ivan Kristensen *Trophies awanled foc best show best flyer best 4 cycle aircraft best sport scale aircraft *Frec intro lesson radio control flying *Fr sport shirt first 100 pilots *BARBQ cook Saturday evening *DOOr prizes spectators *Raffles airplane kits PARKING STEELES AVE IALBION RD C zREXDALE BLVD 0 HWY 401 Contact HUMBER VALLEY R/C FLYERS 105 Stiliwater Cr Willowdale Ont M2R-353 416 222-7509 ATT- CHEIC ON-Board Battery Tester Saves Time. Saves Models BATT-CHEK RX-1 7~$1495 NT P U Use TATON ES THRUST TESTER determine maximum engine output using different props fuel mixtures RPM levels Check engine aaainst another 34 Model Aviation NW Install RO Models Check receiver battery status press button Small Light /2 oz Precise Rugged ORDER TODAY dealer Protune corp t91 41462-6452 PO Boa 1808 Poughkeepsie NY 12601 OPTIMIZE YOUR ENGINES OUTPUT TATONES THRUST TESTER TATONE 30-13 ALUM MOTOR MOUNT ENGINE THROTTLE CONTROL SAFETY STARTING LOCK Canopy hope take time install headrest instrument panel well canopy since add lot appearance model radio compartment hatch screwed place trim bottom canopy conform its shape Cut away hatch covering interior details will placed before attaching After attaching interior details have someone hold canopy place attach hatch strips Y16-in-wide tape made covering materialfirst making sure theres no dust trapped inside Position tape carefully before applying heat method makes much stronger bond can achieved commercial trim stripping tape Radio installation elevator motor control servos mounted strips 46 plywood rest top doublers motor on-off microswitch Radio Shack #275-016 positioned left wall turned transmitter control stick trim tab full-throttle position Mark location attach switch epoxy use CyA glue chance will run inside switch render useless Motor installation Because battery pack permanently soldered motor cannot unplugged safety kill switch must installed system prevent accidental motor turn-on pos sible injury prop during trans porting range checking making adjustments Please eliminate it important safety feature constant torque small electric motor such should underestimated As further aid safety remove prop plane away flying field After charging jacks switches installed wired position receiver run its antenna back through fuse lage out hole near pushrod exit Position receiver battery pack get model balance correct CG tail built lightly shouldnt problem Charging vents fuselage sides above motor battery pack much cooling batteries flight dissipating heat during charging 6-amp 12-volt lead-acid start ing battery average condition has suf ficient charging capacity five six flights Little current drawn flight system no binding control surfaces pushrods 30 minutes flight time should expected 100 mAh battery using mini system Checking its condition between flights strongly advised however Trimming flying Elevator throw should about ailerons Continued page 136 FUNFLY 4- CYCLE EXTRAVAGANZA 2 cycle sport scale welcome JUNE 27 & 28 1987 Sponsored NATIONAL HOBBY stores CANADAS LARGEST 4CYCLE RALLY Toronto Ont Spectators $200 per person per day Pilot registration $1000 per day Noise limit 88db 7 meters enforeed DIRECT READING THRUST DIALONLY $6996 NOR THEA ST AEROD YNAMICS 61C LEBANON STREET ORD ME 04073 490-1881 TRAIN-AIR 20 TRAIN-AIR 40 SPORT-AIR 40 BEL-AIR 40 AO U See local dealer call us referral BEL-AIR 60 Safety Preston Continued page 22 wear gloves dust masks safety gog gles special clothing respirators Learn about chemicals materials what precautions should taken working Study warning labels have questions contact manu facturer ask safety data sheets can replace hazardous materials safer ones Store materials original containers keep covered Keep work area clean Wipe up flammable liquid spills immediately put soaked rags tightly-covered trash container Dispose chemicals properly have World famous kits Europe Large magnificent replicas over 4 feet long beautiful walnut mahogany planking fittings details exquisitely cast bronze brass rare hardwoods Large scale plans step-bystep instructions materials included VHS Video tapecassette howto build also available Send 64-pg full-color catalog $100 MODEL EXPO INC Dept MA-77S 23 Just Road Fairfield NJ 07007 Please send full color ship model catalog $100 enclosed Name questions about disposal contact local health fire department Dont work flammable materials near ignition source such open flame heater water heater cigarette suffer asthma emphysema aller gies heart condition check doctor about materials processes work pregnant ask doctor about continuing hobby also applies wives male hobbyists JP Space out sessions hobby give body time recover between pos sible exposures Ive previously mentioned number above DuPont safety tips dont think can hurt repeat continue see new comers enter hobby may aware some hazards associated products use Before leaving subject potentially haz ardous chemicals want mention two have seemingly similar names have very different properties methyl ethyl ketone MEK methyl ethyl ketone peroxide MEKP MEK solvent commonly used join styrene plastic products Chemically closely related ace tone addition being another common modeling solvent may well principal gredient wifes girlfriends nail polish remover recent letter claimed writer told never allow MEK come contact ones skin since readily ab sorbed ones system will stay until die letter-writer also stated told MEK will cause permanent blind ness upon contact eyeball latter statement leads believe confusing MEK MEKP Methyl ethyl ketone peroxide MEKP clear liquid hardener accompanies polyester resin strong oxidizer extreme care should taken avoid getting drop ones eye Such mishap could well result permanent eye damage blindness would rather get drop methyl ethyl ketone MEK eye does present anywhere near same hazard eyes does MEKP eyes immediately flushed water upon contact MEK no lasting damage should result Similarly am aware MEK presents hazard due skin contact Cyanoacrylate CyA glues have also con fused MEKP some letter-writers writers believed mere drop CyA eye would result instant blindness drop CyA glue eye may well cause eyelids become stuck together likely will very uncomfortable its likely will result permanent damage However would urge take precautions against getting anything eye days ever find time would like list various chemicals use hobby together associated hazards handling precautions Meanwhile urge take care John Preston 2812 Northampton St N W Washington DC 20015 Low Voltage/Marron Continued page 34 /I6 Make sure kill switch off position check controls working properly right direction Since plane light glides well its easy trim out standing top small hill firmly throwing power nose level slightly down wind Make whatever adjustments necessary before attempting powered flight Top Flite nylon 6 x 4 prop installed turn kill switch check proper control surface movement start motor Launch model good shove nose down prevent stall let fly straight level until picks up speed Start feeding some up elevator remembering small electric motor doesnt have much power snarling glow engine Low Voltage has gained some height heart starts beating nor mally again put through some maneuvers get feel control responses Make mental notes adjustments may needed After about 4 5 min will hear whine motor noticeably decrease pitch model wont climb Its time shut off mjttor prepare landing ailerons effective down stall speed experienced landing planes landing gear will pleasantly surprised ease accomplished responding advertisers mention read about ModelAviation 136 Model Aviation city State_____________________ Zip