THE WINNER February Mystery Plane contest Steve Zink Pine Castle FL Steve correctly identified Supermarine Type 508 quite few entrants thought aircraft Supermarine Attacker several differences between two aircraft sides V-tail configuration 508 two en gines tricycle gear attacker excellent candidate Car rier model very clean aircraft cir cular fuselage cross section unusual jet tail surfaces quite large just high-powered piston aircraft pre ceded it conventional landing gear rather tricycle gear later carrier aircraft Three-views Attacker appeared August 1978 CL Navy Carrier column have included Mystery Plane month can devote photo space another topic Ill announce winner April Mys tery Plane contest discuss plane itself August column Skyray Carrier 90 Nats As mentioned last column Sig will sponsoring Car rier event its Skyray 35 model Nats will flown Saturday July 21 same event will flown Sig contest June rules adapted Profile Carrier call Skyray 35 built stock outlines minor modifications adapt model Carrier flying elevator movable control surface allowed lead-out position must re main fixed flight Engines up 40 will al lowed include mufflers desired top speed will limited 75 mph scoring purposes preclude need hot engine official rules may ob tained Sig aiso will send copy ficial rules anyone sends selfaddressed stamped envelope SASE Sig introduced Skyray 35 its selection Control Line kits last year Billed aerobatic trainer sport model airplane conven tional profile design slightly unconventional materials longer Ringmaster/Flite Streak/Shoestring designs spring peoples minds think type model straight wing has just under 400 sq area aspect ratio slightly higher other designs Its wings have spruce spars Lite Ply ribs should make very durable model Overall weight about same other kit profile model same size Wood selection parts fit die cutting usual high quality Ive come expect Sig Skyray 35 should make very enjoyable throttle-equipped sport model after Nats little extra work initial building can become excellent practice model Car rier back-up model competition Though cant quali1r bonus points en tered Profile Carrier Skyray 35 transi tion Curtiss XS2C-l can accomplished eas ily Ill discuss transformation later arti cle Anyone wanting fly Skyray Carrier Nats convert model later Profile Car rier should leave top fuselage top bottom nose flat conversion Skyray 35 Carrier opera tion easy Ive included enough detail text photos allow anyone experienced Control Line airplanes build model Skyray Carrier event should fun event good introduction Carrier flying must have some interest Carrier wouldnt have read far right plan attend Sig contest will Nats Sat urday bring along Skyray 35 join fun small word caution Carrier flying can ad dictive Once youve flown Skyray 35 might find yourself planning enter Profile Car rier next contest addition kit tank wheels engine youll need three-line handle bellerank Sig sells LR Products units very good Use upright version internal controls external controls mounted top wing Use inverted unit external controls bottom wing like so-called long span units Youll also need some %2 plywood x -in engine-mount stock %2- %-in music wire few odd bits pieces real decision youve got make youre building Skyray 35 whether mount controls inside outside wing model uses external controls because like additional line slider range available configuration easier access bellcrank effective trainer Skyray 35 has have same control configuration use competition Carrier designs checked Mike Pratt Sig get approval external bellcrank didnt ask Mike about fairing over bellerank keep off oil Internal con trols easier build look better An internal line slider can incorporated tip will just little harder lock Skyray Carrier position full forward An al ternative Skyray Carrier sport flying would use Stunt-type adjustable lead-out set far aft possible still get 75mph top speed internal bellerank installation make new bellerank platform will span entire center section three W-l ribs Cut out center rib allow bellcrank platform fit inside rib Position bellerank throttle pushrod will outboard fuselage Also make sure fuselage will interfere elevator pushrod either extreme el evator throttle movement short-span bellerank will have eleva Continued page 188 June 1990 85 Control Line Navy Carrier Dick Perry 9009 Arley Dr Springfield VA 22153 Sigs Skyray 35 set up 90 AMA Nats unofficial Sig Skyray Carrier event Dick Perry Some malorbut necessarvmoda made New engine bearers extend aft wing cutout additional strength forward fuselage nose can shortened shaded lines heavier engines keep CG about nd wing spar atcn wire soiaerea ins sievator pusnrod keeps tall hook up during takeoff high-speed flight Applying Down elevator pulls latch out tube soldered hook allowing drop landing Rubberband pulls hook down stabilizes plywood block inset aft fuselage serves tail hook mount %2 wire pin controls extension hook Note nylon landing gear retainer holding brass pivot tube place allows hook removed repair sport flying External line slider use Profile Carrier events allowed Skyray Carrier sim pie make An explanation its construc tion operation found column MINI-ELECTRIC MINI POWER AT ITS BEST LIGHT WEIGHT S $1495 ngage disengage Free ocladed snapo onto motor ISY-lO 7 1 gear ratio Wheeing 19 grams NY-70R Same H'7t bat Disconnects Slide HY-70 as, Kv-42 Improved version HY-48 Apprc QUIET ANT START COST TEMSCHAERIES $2495EFC-599 Props Charge Cord aridLow coot Quick ChargEght Batteries Rs spacers etcl4 D type hattedes Ir $2795 FC-492 Remote Battery HolderIdeal accaratelyry VL Flight Batt0iy sf above add $350Above clrargVL Field box $3295 FLIGHT BATrERIES B-62 IHY-70 2 x 50 mA-Hr..$ 995 tery SJ-5 SwitchB-53 IHY-701 3 ii 50 mA-Hr 95 ractionsB33L lIY-42l 3 x t 10 mA-Hr 12P5 B-341 IHY421 4 ii 110 nJ~Hr 1595 B13L IHY-421 3 e iBO mA-Hr QIAI IUVA9i 155 naifr 45 grams1595 - r640ramo1295 very top column CL Speed/Lee Continued page 84 its lot work make mold Maybe will good item future column sure make stabilizer large enough will affect speed sure helps stabil ity stabs use 9-in span 3-in cen ter chord made out %-in very hard balsa Balsa stiffer basswood doesnt warp like plywood also prefer build V-shaped stab ie dihedral keep tips getting scarfed up landing pretty well covers airplane now lets look engine have modelers area running gas-powered RC cars RC boats go see what using engines several excellent 21s market have seen comparable speeds several different brands can find good-looking good-feeling used engine go ahead try Usually repairs needed new bearings maybe new piston get back condition buy new engine dont overload running big prop modem ABC alu minum piston running chromed brass liner RMcM engines built rev high rpm ,oflhIy fljPnr I 47443 PIPER TRI-PACER 2022 span Plans 5 HD PG Cowl 0 Partial kit 5 Alum bar stock machined wing strut fillings $4000 112 piece seti buy sell build Custom Craft Scale RIC Aircraft TRUE HAPPINESS IS BUILDING AND FLYING PIPER TRI-PACER Send check Carl V MIller 130 Yucca Drive Sedona AZ 86336 282-4810 need break-in will dam aged 10%-nitro fuel insist run ning use 7 x 4 6 x 6 prop still ex perimenting props seems 6- 6-in diameter 6-in pitch works best takes good prop pull two big wires around like fairly wide blade best speeds have 6 x 6 cut down fi berglass copy 7 x 6 Tornado have flown several brands 10%-nitro RC fuel seem run OK Since running low-nitro fuel must raise engines compression ratio right Wrong stock heads fine fact might go faster decrease compression using head gaskets various thicknesses Get few spare head gaskets fly Experiment little should find out what head clearance use dif ferent weather conditions butcher engine attempts porting polishing grinding other secret methods hop-up Fly several times first stock condition doesnt go fast think reasons biggestand almost secret proper sleeve-and-piston fit sleeve bore should round should tapered piston fits loose bottom stroke squeaky tight top best ABC en gines have squeaked top stroke should have clearance least 005 bottom sleeve about 002 in area exhaust bypass ports means 002-in difference between diameter piston inside diameter sleeve Dont try lap sleeve piston will ruin piston Brake hones can used Ill tell future columns make proper lap venturi intake restrictor unnecessary will gain speed removing using re mote needle valve mounted behind engine Its easy make saw file drills need construct out scrap block aluminum brass steel Use surgical tubing pressure fuel bladder will need little over ounce fuel about 30cc flight Ill show build takeoff dolly next column Some specialist suppliers Nick Arpino magnesium speed pans Craftsman Wood Ser vice hardwoods Nicks address 301 Wood Acres Rd East Patchogue NY 11772 Crafts mans address 1735 W Cortland Ct Addison IL 60101 responding advertisers mention read about ModelAviation CL Navy Carrier/Perry Continued page 85 tor pushrod outboard side fuselage long-span bellcrank pushrod wjll inboard side Enlarge lead-out holes ribs needed provide clearance extremes control line slider movement external bellcrank installation added extra rib extended center section sheet ing bellcrank mount bellcrank would completely nirrhnrrrt nf thv t LATHES FOR THE AVIATION MODELER UNIMAT 8 / MCwwAY 55 sriCOMPACTS E4uRArcANEwv assas UNIMAT PC 13041568-3538 CATALOG $100 Plus toll tree nunter orders & questions 188 Model Aviation $1795 er 7 leads Quick stor models $1395 02 toel erigine xnernui guiiurun iniuuniuii aiu fled movIng unit the fuselage instead having uuouuad seen author Dick Perrys installa tion solid pIece %2-ln plywood replaC es balsa sheeting thIs area Cut out fuselage clear bellcrank Note view underside wIng Continued page 190 Rubber ft EngIne Power Free FlIght Display Control Line Electric Power RIC Airplanes new Illustrated 32 page tabloid sIze catalog us ft Canada $100 Forelgh $300 Penn Valley Hobby Center 937-A W Main St Lanedele PA 19440 215- 3650770 ThE WIKLMAIK rho exlra large handle bends 118-1I4 coils 51 3Z-3/16 music wire Wire oeep eliminated ur ANTI-KREEP WIRE LOCKtm catalog also has hardware accessories JOM COMPANY 114 WashIngton Tar Dept Waukegan IL 60055 THE PIPER BRAVE 1/4 scale model Pipers latest Ag plane t wing span 30-33 lbs 5 c C power lb payload ational flaps hopper door onal Spreader Kit formed aluminum landing gear rglass cowls um-formed canopy tucted extruded foam ply hardwood E ~O95OPTIONAL 4fl Smoker l actually dustingKITSPREAD ER $100 FOR CATALOG OFRT 1 NEODESHA KS 66757 SAC KITS AND ACCESSORIES316 325-2821 Free Shipping Kit OrdersScott Airplane CompanyVISA/MASTERCARD evator travel hook stop should allow theeach gear leg should lined %2-OD brass CL Navy Carrier/Perryhook extend no about 45O hooktubing Continued page 188should no nine inches long pivot limited rules one-third fuseThats harder needs easierlage length Eight inches about right method would make bellcrank mount ofThe external line slider mounted sec rectangular 1 x 5 piece 42 ply useond rib tip nine inches inboard part wing sheeting immediately behindtip rib Form slot slider mak spar Cut out fuselage make room ing partial rib %-in balsa arA gluing bethe bellcrank Use washers %2 plywood spac- tween spar trailing edge Balsa sheet ers under bellcrank rather cutting slotaround slot will provide base coverin bellcrank mount bellcrank pivot pining Insert slider after wing covered clearance way oil wont get inside wing new two-wheel landing gear mounts nose modified allowed rules bythrough lower hardwood engine bearer installing engine bearers extend wayForward location aids Carrier landings wing cutout way roombut makes normal landings prone bounc landing gear attach point through aing Note aluminum pads installed solid engine bearer flex point noseto provide firmer engine mounting surface moved back past leading edge wingThe outboard wing tip should have about three rather being right leading edge anounces weight internal control system has engine weighing 10 oz nose shouldbeen used external bellcrank because shortened lighter engine can use thethe line guide being closer fuselage litstandard length nosetIe two ounces can used best per new partisi rID ana some oaisa sneesingformance able remove excess weight tail-hook mount consists hardwoodform slot accepts external lead-for sport flying build enclosed plywood box block inset fuselage bottom used ply-out guide after wing has coverein outboard rib bay use lead shot steel wood however basswood engine-mount line slider constructed 1/ nylonBBs adjust tip weight needed stock would also work shape criticalsheet Sig sells -in brass channel -in stop limits hook travel should inbalsa spruce internal framing 4 ply-Ready cover tip weight no control block balsa Use photos forwood external facing hold together 4system tail hook landing gear fuel tank enguidance tail hook formed %2 wire40 bolt nut washers will hold slider agine Skyray can easily weigh less 20 %-in-OD brass-tube bearing landingfixed position Skyrsy Carrier eventoz finished model will slightly over two gear retainer keeps bearing placepounds ready fly depending course Use / wire small piece tubing formThe landing gear bent -in wire latch holds hook up hooks formounted shown photo portion onding advertisers mention rubberband latch should adjusted sothrough fuselage should long enough ex hook releases about half Down el-tend completely through holes about ModelAviation GLIDER RETRACTS Servo actuated 9 de acts Ove cente up down ock urn num pa ta made compute contro ad milling machine 6D61-T6 beautifully crafted retracts made finest materials available best offered anywhere Made USA 1/5 SCALE 3 oz wheel 1-9/16W s 4L 2H 23/u wheel max 1/4 SCALE TWO TO CHOOSE FROM STO FOR GLIDERS UP TO 10 LBS 52 oz wheel 2W 3-7/15L 2I4 H 35 wheel max MD FOR GLIDERS OVER 10 LBS 65 OZ 2W 6L s 23/4H 35 wheel max 1/3 SCALE 88 OZ wheel 23/4W St 23/aH 5 wheel max FIvE-FOOT PusHAOOs-1/16 Music Wire casing Sand stamped self-addressed envelope pricing info SCALE GLIDER COMPONENTS 7034 FERN PLACE CARLSBAD CA 82009 6191 931-1438 190 Model Aviation WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries chargers need agel Fits 48V Ax 96V Tx packsPlus $5 S&HWet Cell & Cycier-Charger $23995 Others available write call eguiar Model$4695 eIFor field kit smallPlus $3 SEtH electric boat batteriesSpecify 612 24V eectnc powerlarge boat charging batteriesSpecify 6 1 2V CaRa Productssseiermioeiaaoe ox 221 605-987-5924Dear equines invitedCanton SD 57013 WA wodisat loss Now available ty Lite. workis first premium grade Ight plywood Mighty Lites ultra smooth grain finish slows ilmited filing vwtually no flaking saving hours precious building time Mighty Ute bonds eas0y ZAP other CAs cuts Ike butter X-ACTO knife Shattering spintering warpin mildew thing past Mighty Ute8 qualty formula tion currently being used leading manufac turers including BOB VIOLETT MODELS HOUSE OF BALSA because its superior strength-to-wsi~ ratio SO youre tired shattering experiences next time right. use Mighty Litel / MIg$ Lit House S rse* info Epurprisee 20130 State Road etritoa caafomiseOlvl2460 SW 65th brace Davie Fiosida 33024 213 860-1216 4732211 Mi0ty LheieaiatbUsr hobby storee everywhere may oatsr ot hum regiofial saline office neareat engine amount tip weight decide use Kids/Haught Continued page 65 make feel investment work though cover costs kids funds never turned away couldnt pay given little jobs work off cost models Imagine having mow lawn whole year As models got expensive found buying balsa bulk helped Bundles balsa became rule fellow modelers whod heard about group quick help Some sent stacks balsa left car others mailed rolls tissue paper no charge Thanks Greg owner hobby shop St Cloud visited business trip gave us box old Cox 049s props wheels gold helped kids couldnt afford engine get Con trol Line flying big project spring series Control Line Top Fun models So far 12 have finished flown After 20 flights pilots earn Ace status re ceive AMA medal get choose model own build 17 kids started day last fall 15 have stuck out Theyre already skilled modelers Control Line Free Flight fliers Much surprise two girls club still us enjoy much boys game plan now get accustomed flying two pilots circle lead ing up Mouse Racing fall /2A Combat us have wonder ful time learned lot others think might willing tackle project sort let offer some pointers Plan having fun Dont too intent making mainly learning experience try keep loose fun Dis cipline importantthe kids need learn respect tools materials theyre working Keep affordable Keep projects objectives simple reasonable Try assemble file poten tial projects well ahead time Use nat ural leaders faster builders helpers Make up workbox modeler Use shoebox like fill knife emery board pins glue etc Share fun have similarly clined modeling friend together Meet ing regular time place essential Most important relax have funand re member what youre giving kids Id glad answer questions might have Dave Haught 302 West Main Ceylon MN 56121 Good luck keep em building Astrostar/Thorkildsen Continued page 72 ribs / x %-in main bottom spar spruce other bottom spar /8 x A-in hard balsa Install main ribs except dihe dral breaks Fit glue / x A-in balsa top center spar Install geodetic ribs sanding ends required good fit Notch geodetic ribs top turbu lator spars dont install spars point youd need cut front geo detic ribs half cut notches straightedge X-Acto knife using main ribs guide notches sanded correct depth usJune 1990 191 Thin plywood enclosing nose out ermost outboard wing rib bay serves container lead shot used adlust tip weight optimum slow-flight perform ance nylon screw plugs access hole
Edition: Model Aviation - 1990/06
Page Numbers: 85, 188, 190, 191
THE WINNER February Mystery Plane contest Steve Zink Pine Castle FL Steve correctly identified Supermarine Type 508 quite few entrants thought aircraft Supermarine Attacker several differences between two aircraft sides V-tail configuration 508 two en gines tricycle gear attacker excellent candidate Car rier model very clean aircraft cir cular fuselage cross section unusual jet tail surfaces quite large just high-powered piston aircraft pre ceded it conventional landing gear rather tricycle gear later carrier aircraft Three-views Attacker appeared August 1978 CL Navy Carrier column have included Mystery Plane month can devote photo space another topic Ill announce winner April Mys tery Plane contest discuss plane itself August column Skyray Carrier 90 Nats As mentioned last column Sig will sponsoring Car rier event its Skyray 35 model Nats will flown Saturday July 21 same event will flown Sig contest June rules adapted Profile Carrier call Skyray 35 built stock outlines minor modifications adapt model Carrier flying elevator movable control surface allowed lead-out position must re main fixed flight Engines up 40 will al lowed include mufflers desired top speed will limited 75 mph scoring purposes preclude need hot engine official rules may ob tained Sig aiso will send copy ficial rules anyone sends selfaddressed stamped envelope SASE Sig introduced Skyray 35 its selection Control Line kits last year Billed aerobatic trainer sport model airplane conven tional profile design slightly unconventional materials longer Ringmaster/Flite Streak/Shoestring designs spring peoples minds think type model straight wing has just under 400 sq area aspect ratio slightly higher other designs Its wings have spruce spars Lite Ply ribs should make very durable model Overall weight about same other kit profile model same size Wood selection parts fit die cutting usual high quality Ive come expect Sig Skyray 35 should make very enjoyable throttle-equipped sport model after Nats little extra work initial building can become excellent practice model Car rier back-up model competition Though cant quali1r bonus points en tered Profile Carrier Skyray 35 transi tion Curtiss XS2C-l can accomplished eas ily Ill discuss transformation later arti cle Anyone wanting fly Skyray Carrier Nats convert model later Profile Car rier should leave top fuselage top bottom nose flat conversion Skyray 35 Carrier opera tion easy Ive included enough detail text photos allow anyone experienced Control Line airplanes build model Skyray Carrier event should fun event good introduction Carrier flying must have some interest Carrier wouldnt have read far right plan attend Sig contest will Nats Sat urday bring along Skyray 35 join fun small word caution Carrier flying can ad dictive Once youve flown Skyray 35 might find yourself planning enter Profile Car rier next contest addition kit tank wheels engine youll need three-line handle bellerank Sig sells LR Products units very good Use upright version internal controls external controls mounted top wing Use inverted unit external controls bottom wing like so-called long span units Youll also need some %2 plywood x -in engine-mount stock %2- %-in music wire few odd bits pieces real decision youve got make youre building Skyray 35 whether mount controls inside outside wing model uses external controls because like additional line slider range available configuration easier access bellcrank effective trainer Skyray 35 has have same control configuration use competition Carrier designs checked Mike Pratt Sig get approval external bellcrank didnt ask Mike about fairing over bellerank keep off oil Internal con trols easier build look better An internal line slider can incorporated tip will just little harder lock Skyray Carrier position full forward An al ternative Skyray Carrier sport flying would use Stunt-type adjustable lead-out set far aft possible still get 75mph top speed internal bellerank installation make new bellerank platform will span entire center section three W-l ribs Cut out center rib allow bellcrank platform fit inside rib Position bellerank throttle pushrod will outboard fuselage Also make sure fuselage will interfere elevator pushrod either extreme el evator throttle movement short-span bellerank will have eleva Continued page 188 June 1990 85 Control Line Navy Carrier Dick Perry 9009 Arley Dr Springfield VA 22153 Sigs Skyray 35 set up 90 AMA Nats unofficial Sig Skyray Carrier event Dick Perry Some malorbut necessarvmoda made New engine bearers extend aft wing cutout additional strength forward fuselage nose can shortened shaded lines heavier engines keep CG about nd wing spar atcn wire soiaerea ins sievator pusnrod keeps tall hook up during takeoff high-speed flight Applying Down elevator pulls latch out tube soldered hook allowing drop landing Rubberband pulls hook down stabilizes plywood block inset aft fuselage serves tail hook mount %2 wire pin controls extension hook Note nylon landing gear retainer holding brass pivot tube place allows hook removed repair sport flying External line slider use Profile Carrier events allowed Skyray Carrier sim pie make An explanation its construc tion operation found column MINI-ELECTRIC MINI POWER AT ITS BEST LIGHT WEIGHT S $1495 ngage disengage Free ocladed snapo onto motor ISY-lO 7 1 gear ratio Wheeing 19 grams NY-70R Same H'7t bat Disconnects Slide HY-70 as, Kv-42 Improved version HY-48 Apprc QUIET ANT START COST TEMSCHAERIES $2495EFC-599 Props Charge Cord aridLow coot Quick ChargEght Batteries Rs spacers etcl4 D type hattedes Ir $2795 FC-492 Remote Battery HolderIdeal accaratelyry VL Flight Batt0iy sf above add $350Above clrargVL Field box $3295 FLIGHT BATrERIES B-62 IHY-70 2 x 50 mA-Hr..$ 995 tery SJ-5 SwitchB-53 IHY-701 3 ii 50 mA-Hr 95 ractionsB33L lIY-42l 3 x t 10 mA-Hr 12P5 B-341 IHY421 4 ii 110 nJ~Hr 1595 B13L IHY-421 3 e iBO mA-Hr QIAI IUVA9i 155 naifr 45 grams1595 - r640ramo1295 very top column CL Speed/Lee Continued page 84 its lot work make mold Maybe will good item future column sure make stabilizer large enough will affect speed sure helps stabil ity stabs use 9-in span 3-in cen ter chord made out %-in very hard balsa Balsa stiffer basswood doesnt warp like plywood also prefer build V-shaped stab ie dihedral keep tips getting scarfed up landing pretty well covers airplane now lets look engine have modelers area running gas-powered RC cars RC boats go see what using engines several excellent 21s market have seen comparable speeds several different brands can find good-looking good-feeling used engine go ahead try Usually repairs needed new bearings maybe new piston get back condition buy new engine dont overload running big prop modem ABC alu minum piston running chromed brass liner RMcM engines built rev high rpm ,oflhIy fljPnr I 47443 PIPER TRI-PACER 2022 span Plans 5 HD PG Cowl 0 Partial kit 5 Alum bar stock machined wing strut fillings $4000 112 piece seti buy sell build Custom Craft Scale RIC Aircraft TRUE HAPPINESS IS BUILDING AND FLYING PIPER TRI-PACER Send check Carl V MIller 130 Yucca Drive Sedona AZ 86336 282-4810 need break-in will dam aged 10%-nitro fuel insist run ning use 7 x 4 6 x 6 prop still ex perimenting props seems 6- 6-in diameter 6-in pitch works best takes good prop pull two big wires around like fairly wide blade best speeds have 6 x 6 cut down fi berglass copy 7 x 6 Tornado have flown several brands 10%-nitro RC fuel seem run OK Since running low-nitro fuel must raise engines compression ratio right Wrong stock heads fine fact might go faster decrease compression using head gaskets various thicknesses Get few spare head gaskets fly Experiment little should find out what head clearance use dif ferent weather conditions butcher engine attempts porting polishing grinding other secret methods hop-up Fly several times first stock condition doesnt go fast think reasons biggestand almost secret proper sleeve-and-piston fit sleeve bore should round should tapered piston fits loose bottom stroke squeaky tight top best ABC en gines have squeaked top stroke should have clearance least 005 bottom sleeve about 002 in area exhaust bypass ports means 002-in difference between diameter piston inside diameter sleeve Dont try lap sleeve piston will ruin piston Brake hones can used Ill tell future columns make proper lap venturi intake restrictor unnecessary will gain speed removing using re mote needle valve mounted behind engine Its easy make saw file drills need construct out scrap block aluminum brass steel Use surgical tubing pressure fuel bladder will need little over ounce fuel about 30cc flight Ill show build takeoff dolly next column Some specialist suppliers Nick Arpino magnesium speed pans Craftsman Wood Ser vice hardwoods Nicks address 301 Wood Acres Rd East Patchogue NY 11772 Crafts mans address 1735 W Cortland Ct Addison IL 60101 responding advertisers mention read about ModelAviation CL Navy Carrier/Perry Continued page 85 tor pushrod outboard side fuselage long-span bellcrank pushrod wjll inboard side Enlarge lead-out holes ribs needed provide clearance extremes control line slider movement external bellcrank installation added extra rib extended center section sheet ing bellcrank mount bellcrank would completely nirrhnrrrt nf thv t LATHES FOR THE AVIATION MODELER UNIMAT 8 / MCwwAY 55 sriCOMPACTS E4uRArcANEwv assas UNIMAT PC 13041568-3538 CATALOG $100 Plus toll tree nunter orders & questions 188 Model Aviation $1795 er 7 leads Quick stor models $1395 02 toel erigine xnernui guiiurun iniuuniuii aiu fled movIng unit the fuselage instead having uuouuad seen author Dick Perrys installa tion solid pIece %2-ln plywood replaC es balsa sheeting thIs area Cut out fuselage clear bellcrank Note view underside wIng Continued page 190 Rubber ft EngIne Power Free FlIght Display Control Line Electric Power RIC Airplanes new Illustrated 32 page tabloid sIze catalog us ft Canada $100 Forelgh $300 Penn Valley Hobby Center 937-A W Main St Lanedele PA 19440 215- 3650770 ThE WIKLMAIK rho exlra large handle bends 118-1I4 coils 51 3Z-3/16 music wire Wire oeep eliminated ur ANTI-KREEP WIRE LOCKtm catalog also has hardware accessories JOM COMPANY 114 WashIngton Tar Dept Waukegan IL 60055 THE PIPER BRAVE 1/4 scale model Pipers latest Ag plane t wing span 30-33 lbs 5 c C power lb payload ational flaps hopper door onal Spreader Kit formed aluminum landing gear rglass cowls um-formed canopy tucted extruded foam ply hardwood E ~O95OPTIONAL 4fl Smoker l actually dustingKITSPREAD ER $100 FOR CATALOG OFRT 1 NEODESHA KS 66757 SAC KITS AND ACCESSORIES316 325-2821 Free Shipping Kit OrdersScott Airplane CompanyVISA/MASTERCARD evator travel hook stop should allow theeach gear leg should lined %2-OD brass CL Navy Carrier/Perryhook extend no about 45O hooktubing Continued page 188should no nine inches long pivot limited rules one-third fuseThats harder needs easierlage length Eight inches about right method would make bellcrank mount ofThe external line slider mounted sec rectangular 1 x 5 piece 42 ply useond rib tip nine inches inboard part wing sheeting immediately behindtip rib Form slot slider mak spar Cut out fuselage make room ing partial rib %-in balsa arA gluing bethe bellcrank Use washers %2 plywood spac- tween spar trailing edge Balsa sheet ers under bellcrank rather cutting slotaround slot will provide base coverin bellcrank mount bellcrank pivot pining Insert slider after wing covered clearance way oil wont get inside wing new two-wheel landing gear mounts nose modified allowed rules bythrough lower hardwood engine bearer installing engine bearers extend wayForward location aids Carrier landings wing cutout way roombut makes normal landings prone bounc landing gear attach point through aing Note aluminum pads installed solid engine bearer flex point noseto provide firmer engine mounting surface moved back past leading edge wingThe outboard wing tip should have about three rather being right leading edge anounces weight internal control system has engine weighing 10 oz nose shouldbeen used external bellcrank because shortened lighter engine can use thethe line guide being closer fuselage litstandard length nosetIe two ounces can used best per new partisi rID ana some oaisa sneesingformance able remove excess weight tail-hook mount consists hardwoodform slot accepts external lead-for sport flying build enclosed plywood box block inset fuselage bottom used ply-out guide after wing has coverein outboard rib bay use lead shot steel wood however basswood engine-mount line slider constructed 1/ nylonBBs adjust tip weight needed stock would also work shape criticalsheet Sig sells -in brass channel -in stop limits hook travel should inbalsa spruce internal framing 4 ply-Ready cover tip weight no control block balsa Use photos forwood external facing hold together 4system tail hook landing gear fuel tank enguidance tail hook formed %2 wire40 bolt nut washers will hold slider agine Skyray can easily weigh less 20 %-in-OD brass-tube bearing landingfixed position Skyrsy Carrier eventoz finished model will slightly over two gear retainer keeps bearing placepounds ready fly depending course Use / wire small piece tubing formThe landing gear bent -in wire latch holds hook up hooks formounted shown photo portion onding advertisers mention rubberband latch should adjusted sothrough fuselage should long enough ex hook releases about half Down el-tend completely through holes about ModelAviation GLIDER RETRACTS Servo actuated 9 de acts Ove cente up down ock urn num pa ta made compute contro ad milling machine 6D61-T6 beautifully crafted retracts made finest materials available best offered anywhere Made USA 1/5 SCALE 3 oz wheel 1-9/16W s 4L 2H 23/u wheel max 1/4 SCALE TWO TO CHOOSE FROM STO FOR GLIDERS UP TO 10 LBS 52 oz wheel 2W 3-7/15L 2I4 H 35 wheel max MD FOR GLIDERS OVER 10 LBS 65 OZ 2W 6L s 23/4H 35 wheel max 1/3 SCALE 88 OZ wheel 23/4W St 23/aH 5 wheel max FIvE-FOOT PusHAOOs-1/16 Music Wire casing Sand stamped self-addressed envelope pricing info SCALE GLIDER COMPONENTS 7034 FERN PLACE CARLSBAD CA 82009 6191 931-1438 190 Model Aviation WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries chargers need agel Fits 48V Ax 96V Tx packsPlus $5 S&HWet Cell & Cycier-Charger $23995 Others available write call eguiar Model$4695 eIFor field kit smallPlus $3 SEtH electric boat batteriesSpecify 612 24V eectnc powerlarge boat charging batteriesSpecify 6 1 2V CaRa Productssseiermioeiaaoe ox 221 605-987-5924Dear equines invitedCanton SD 57013 WA wodisat loss Now available ty Lite. workis first premium grade Ight plywood Mighty Lites ultra smooth grain finish slows ilmited filing vwtually no flaking saving hours precious building time Mighty Ute bonds eas0y ZAP other CAs cuts Ike butter X-ACTO knife Shattering spintering warpin mildew thing past Mighty Ute8 qualty formula tion currently being used leading manufac turers including BOB VIOLETT MODELS HOUSE OF BALSA because its superior strength-to-wsi~ ratio SO youre tired shattering experiences next time right. use Mighty Litel / MIg$ Lit House S rse* info Epurprisee 20130 State Road etritoa caafomiseOlvl2460 SW 65th brace Davie Fiosida 33024 213 860-1216 4732211 Mi0ty LheieaiatbUsr hobby storee everywhere may oatsr ot hum regiofial saline office neareat engine amount tip weight decide use Kids/Haught Continued page 65 make feel investment work though cover costs kids funds never turned away couldnt pay given little jobs work off cost models Imagine having mow lawn whole year As models got expensive found buying balsa bulk helped Bundles balsa became rule fellow modelers whod heard about group quick help Some sent stacks balsa left car others mailed rolls tissue paper no charge Thanks Greg owner hobby shop St Cloud visited business trip gave us box old Cox 049s props wheels gold helped kids couldnt afford engine get Con trol Line flying big project spring series Control Line Top Fun models So far 12 have finished flown After 20 flights pilots earn Ace status re ceive AMA medal get choose model own build 17 kids started day last fall 15 have stuck out Theyre already skilled modelers Control Line Free Flight fliers Much surprise two girls club still us enjoy much boys game plan now get accustomed flying two pilots circle lead ing up Mouse Racing fall /2A Combat us have wonder ful time learned lot others think might willing tackle project sort let offer some pointers Plan having fun Dont too intent making mainly learning experience try keep loose fun Dis cipline importantthe kids need learn respect tools materials theyre working Keep affordable Keep projects objectives simple reasonable Try assemble file poten tial projects well ahead time Use nat ural leaders faster builders helpers Make up workbox modeler Use shoebox like fill knife emery board pins glue etc Share fun have similarly clined modeling friend together Meet ing regular time place essential Most important relax have funand re member what youre giving kids Id glad answer questions might have Dave Haught 302 West Main Ceylon MN 56121 Good luck keep em building Astrostar/Thorkildsen Continued page 72 ribs / x %-in main bottom spar spruce other bottom spar /8 x A-in hard balsa Install main ribs except dihe dral breaks Fit glue / x A-in balsa top center spar Install geodetic ribs sanding ends required good fit Notch geodetic ribs top turbu lator spars dont install spars point youd need cut front geo detic ribs half cut notches straightedge X-Acto knife using main ribs guide notches sanded correct depth usJune 1990 191 Thin plywood enclosing nose out ermost outboard wing rib bay serves container lead shot used adlust tip weight optimum slow-flight perform ance nylon screw plugs access hole
Edition: Model Aviation - 1990/06
Page Numbers: 85, 188, 190, 191
THE WINNER February Mystery Plane contest Steve Zink Pine Castle FL Steve correctly identified Supermarine Type 508 quite few entrants thought aircraft Supermarine Attacker several differences between two aircraft sides V-tail configuration 508 two en gines tricycle gear attacker excellent candidate Car rier model very clean aircraft cir cular fuselage cross section unusual jet tail surfaces quite large just high-powered piston aircraft pre ceded it conventional landing gear rather tricycle gear later carrier aircraft Three-views Attacker appeared August 1978 CL Navy Carrier column have included Mystery Plane month can devote photo space another topic Ill announce winner April Mys tery Plane contest discuss plane itself August column Skyray Carrier 90 Nats As mentioned last column Sig will sponsoring Car rier event its Skyray 35 model Nats will flown Saturday July 21 same event will flown Sig contest June rules adapted Profile Carrier call Skyray 35 built stock outlines minor modifications adapt model Carrier flying elevator movable control surface allowed lead-out position must re main fixed flight Engines up 40 will al lowed include mufflers desired top speed will limited 75 mph scoring purposes preclude need hot engine official rules may ob tained Sig aiso will send copy ficial rules anyone sends selfaddressed stamped envelope SASE Sig introduced Skyray 35 its selection Control Line kits last year Billed aerobatic trainer sport model airplane conven tional profile design slightly unconventional materials longer Ringmaster/Flite Streak/Shoestring designs spring peoples minds think type model straight wing has just under 400 sq area aspect ratio slightly higher other designs Its wings have spruce spars Lite Ply ribs should make very durable model Overall weight about same other kit profile model same size Wood selection parts fit die cutting usual high quality Ive come expect Sig Skyray 35 should make very enjoyable throttle-equipped sport model after Nats little extra work initial building can become excellent practice model Car rier back-up model competition Though cant quali1r bonus points en tered Profile Carrier Skyray 35 transi tion Curtiss XS2C-l can accomplished eas ily Ill discuss transformation later arti cle Anyone wanting fly Skyray Carrier Nats convert model later Profile Car rier should leave top fuselage top bottom nose flat conversion Skyray 35 Carrier opera tion easy Ive included enough detail text photos allow anyone experienced Control Line airplanes build model Skyray Carrier event should fun event good introduction Carrier flying must have some interest Carrier wouldnt have read far right plan attend Sig contest will Nats Sat urday bring along Skyray 35 join fun small word caution Carrier flying can ad dictive Once youve flown Skyray 35 might find yourself planning enter Profile Car rier next contest addition kit tank wheels engine youll need three-line handle bellerank Sig sells LR Products units very good Use upright version internal controls external controls mounted top wing Use inverted unit external controls bottom wing like so-called long span units Youll also need some %2 plywood x -in engine-mount stock %2- %-in music wire few odd bits pieces real decision youve got make youre building Skyray 35 whether mount controls inside outside wing model uses external controls because like additional line slider range available configuration easier access bellcrank effective trainer Skyray 35 has have same control configuration use competition Carrier designs checked Mike Pratt Sig get approval external bellcrank didnt ask Mike about fairing over bellerank keep off oil Internal con trols easier build look better An internal line slider can incorporated tip will just little harder lock Skyray Carrier position full forward An al ternative Skyray Carrier sport flying would use Stunt-type adjustable lead-out set far aft possible still get 75mph top speed internal bellerank installation make new bellerank platform will span entire center section three W-l ribs Cut out center rib allow bellcrank platform fit inside rib Position bellerank throttle pushrod will outboard fuselage Also make sure fuselage will interfere elevator pushrod either extreme el evator throttle movement short-span bellerank will have eleva Continued page 188 June 1990 85 Control Line Navy Carrier Dick Perry 9009 Arley Dr Springfield VA 22153 Sigs Skyray 35 set up 90 AMA Nats unofficial Sig Skyray Carrier event Dick Perry Some malorbut necessarvmoda made New engine bearers extend aft wing cutout additional strength forward fuselage nose can shortened shaded lines heavier engines keep CG about nd wing spar atcn wire soiaerea ins sievator pusnrod keeps tall hook up during takeoff high-speed flight Applying Down elevator pulls latch out tube soldered hook allowing drop landing Rubberband pulls hook down stabilizes plywood block inset aft fuselage serves tail hook mount %2 wire pin controls extension hook Note nylon landing gear retainer holding brass pivot tube place allows hook removed repair sport flying External line slider use Profile Carrier events allowed Skyray Carrier sim pie make An explanation its construc tion operation found column MINI-ELECTRIC MINI POWER AT ITS BEST LIGHT WEIGHT S $1495 ngage disengage Free ocladed snapo onto motor ISY-lO 7 1 gear ratio Wheeing 19 grams NY-70R Same H'7t bat Disconnects Slide HY-70 as, Kv-42 Improved version HY-48 Apprc QUIET ANT START COST TEMSCHAERIES $2495EFC-599 Props Charge Cord aridLow coot Quick ChargEght Batteries Rs spacers etcl4 D type hattedes Ir $2795 FC-492 Remote Battery HolderIdeal accaratelyry VL Flight Batt0iy sf above add $350Above clrargVL Field box $3295 FLIGHT BATrERIES B-62 IHY-70 2 x 50 mA-Hr..$ 995 tery SJ-5 SwitchB-53 IHY-701 3 ii 50 mA-Hr 95 ractionsB33L lIY-42l 3 x t 10 mA-Hr 12P5 B-341 IHY421 4 ii 110 nJ~Hr 1595 B13L IHY-421 3 e iBO mA-Hr QIAI IUVA9i 155 naifr 45 grams1595 - r640ramo1295 very top column CL Speed/Lee Continued page 84 its lot work make mold Maybe will good item future column sure make stabilizer large enough will affect speed sure helps stabil ity stabs use 9-in span 3-in cen ter chord made out %-in very hard balsa Balsa stiffer basswood doesnt warp like plywood also prefer build V-shaped stab ie dihedral keep tips getting scarfed up landing pretty well covers airplane now lets look engine have modelers area running gas-powered RC cars RC boats go see what using engines several excellent 21s market have seen comparable speeds several different brands can find good-looking good-feeling used engine go ahead try Usually repairs needed new bearings maybe new piston get back condition buy new engine dont overload running big prop modem ABC alu minum piston running chromed brass liner RMcM engines built rev high rpm ,oflhIy fljPnr I 47443 PIPER TRI-PACER 2022 span Plans 5 HD PG Cowl 0 Partial kit 5 Alum bar stock machined wing strut fillings $4000 112 piece seti buy sell build Custom Craft Scale RIC Aircraft TRUE HAPPINESS IS BUILDING AND FLYING PIPER TRI-PACER Send check Carl V MIller 130 Yucca Drive Sedona AZ 86336 282-4810 need break-in will dam aged 10%-nitro fuel insist run ning use 7 x 4 6 x 6 prop still ex perimenting props seems 6- 6-in diameter 6-in pitch works best takes good prop pull two big wires around like fairly wide blade best speeds have 6 x 6 cut down fi berglass copy 7 x 6 Tornado have flown several brands 10%-nitro RC fuel seem run OK Since running low-nitro fuel must raise engines compression ratio right Wrong stock heads fine fact might go faster decrease compression using head gaskets various thicknesses Get few spare head gaskets fly Experiment little should find out what head clearance use dif ferent weather conditions butcher engine attempts porting polishing grinding other secret methods hop-up Fly several times first stock condition doesnt go fast think reasons biggestand almost secret proper sleeve-and-piston fit sleeve bore should round should tapered piston fits loose bottom stroke squeaky tight top best ABC en gines have squeaked top stroke should have clearance least 005 bottom sleeve about 002 in area exhaust bypass ports means 002-in difference between diameter piston inside diameter sleeve Dont try lap sleeve piston will ruin piston Brake hones can used Ill tell future columns make proper lap venturi intake restrictor unnecessary will gain speed removing using re mote needle valve mounted behind engine Its easy make saw file drills need construct out scrap block aluminum brass steel Use surgical tubing pressure fuel bladder will need little over ounce fuel about 30cc flight Ill show build takeoff dolly next column Some specialist suppliers Nick Arpino magnesium speed pans Craftsman Wood Ser vice hardwoods Nicks address 301 Wood Acres Rd East Patchogue NY 11772 Crafts mans address 1735 W Cortland Ct Addison IL 60101 responding advertisers mention read about ModelAviation CL Navy Carrier/Perry Continued page 85 tor pushrod outboard side fuselage long-span bellcrank pushrod wjll inboard side Enlarge lead-out holes ribs needed provide clearance extremes control line slider movement external bellcrank installation added extra rib extended center section sheet ing bellcrank mount bellcrank would completely nirrhnrrrt nf thv t LATHES FOR THE AVIATION MODELER UNIMAT 8 / MCwwAY 55 sriCOMPACTS E4uRArcANEwv assas UNIMAT PC 13041568-3538 CATALOG $100 Plus toll tree nunter orders & questions 188 Model Aviation $1795 er 7 leads Quick stor models $1395 02 toel erigine xnernui guiiurun iniuuniuii aiu fled movIng unit the fuselage instead having uuouuad seen author Dick Perrys installa tion solid pIece %2-ln plywood replaC es balsa sheeting thIs area Cut out fuselage clear bellcrank Note view underside wIng Continued page 190 Rubber ft EngIne Power Free FlIght Display Control Line Electric Power RIC Airplanes new Illustrated 32 page tabloid sIze catalog us ft Canada $100 Forelgh $300 Penn Valley Hobby Center 937-A W Main St Lanedele PA 19440 215- 3650770 ThE WIKLMAIK rho exlra large handle bends 118-1I4 coils 51 3Z-3/16 music wire Wire oeep eliminated ur ANTI-KREEP WIRE LOCKtm catalog also has hardware accessories JOM COMPANY 114 WashIngton Tar Dept Waukegan IL 60055 THE PIPER BRAVE 1/4 scale model Pipers latest Ag plane t wing span 30-33 lbs 5 c C power lb payload ational flaps hopper door onal Spreader Kit formed aluminum landing gear rglass cowls um-formed canopy tucted extruded foam ply hardwood E ~O95OPTIONAL 4fl Smoker l actually dustingKITSPREAD ER $100 FOR CATALOG OFRT 1 NEODESHA KS 66757 SAC KITS AND ACCESSORIES316 325-2821 Free Shipping Kit OrdersScott Airplane CompanyVISA/MASTERCARD evator travel hook stop should allow theeach gear leg should lined %2-OD brass CL Navy Carrier/Perryhook extend no about 45O hooktubing Continued page 188should no nine inches long pivot limited rules one-third fuseThats harder needs easierlage length Eight inches about right method would make bellcrank mount ofThe external line slider mounted sec rectangular 1 x 5 piece 42 ply useond rib tip nine inches inboard part wing sheeting immediately behindtip rib Form slot slider mak spar Cut out fuselage make room ing partial rib %-in balsa arA gluing bethe bellcrank Use washers %2 plywood spac- tween spar trailing edge Balsa sheet ers under bellcrank rather cutting slotaround slot will provide base coverin bellcrank mount bellcrank pivot pining Insert slider after wing covered clearance way oil wont get inside wing new two-wheel landing gear mounts nose modified allowed rules bythrough lower hardwood engine bearer installing engine bearers extend wayForward location aids Carrier landings wing cutout way roombut makes normal landings prone bounc landing gear attach point through aing Note aluminum pads installed solid engine bearer flex point noseto provide firmer engine mounting surface moved back past leading edge wingThe outboard wing tip should have about three rather being right leading edge anounces weight internal control system has engine weighing 10 oz nose shouldbeen used external bellcrank because shortened lighter engine can use thethe line guide being closer fuselage litstandard length nosetIe two ounces can used best per new partisi rID ana some oaisa sneesingformance able remove excess weight tail-hook mount consists hardwoodform slot accepts external lead-for sport flying build enclosed plywood box block inset fuselage bottom used ply-out guide after wing has coverein outboard rib bay use lead shot steel wood however basswood engine-mount line slider constructed 1/ nylonBBs adjust tip weight needed stock would also work shape criticalsheet Sig sells -in brass channel -in stop limits hook travel should inbalsa spruce internal framing 4 ply-Ready cover tip weight no control block balsa Use photos forwood external facing hold together 4system tail hook landing gear fuel tank enguidance tail hook formed %2 wire40 bolt nut washers will hold slider agine Skyray can easily weigh less 20 %-in-OD brass-tube bearing landingfixed position Skyrsy Carrier eventoz finished model will slightly over two gear retainer keeps bearing placepounds ready fly depending course Use / wire small piece tubing formThe landing gear bent -in wire latch holds hook up hooks formounted shown photo portion onding advertisers mention rubberband latch should adjusted sothrough fuselage should long enough ex hook releases about half Down el-tend completely through holes about ModelAviation GLIDER RETRACTS Servo actuated 9 de acts Ove cente up down ock urn num pa ta made compute contro ad milling machine 6D61-T6 beautifully crafted retracts made finest materials available best offered anywhere Made USA 1/5 SCALE 3 oz wheel 1-9/16W s 4L 2H 23/u wheel max 1/4 SCALE TWO TO CHOOSE FROM STO FOR GLIDERS UP TO 10 LBS 52 oz wheel 2W 3-7/15L 2I4 H 35 wheel max MD FOR GLIDERS OVER 10 LBS 65 OZ 2W 6L s 23/4H 35 wheel max 1/3 SCALE 88 OZ wheel 23/4W St 23/aH 5 wheel max FIvE-FOOT PusHAOOs-1/16 Music Wire casing Sand stamped self-addressed envelope pricing info SCALE GLIDER COMPONENTS 7034 FERN PLACE CARLSBAD CA 82009 6191 931-1438 190 Model Aviation WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries chargers need agel Fits 48V Ax 96V Tx packsPlus $5 S&HWet Cell & Cycier-Charger $23995 Others available write call eguiar Model$4695 eIFor field kit smallPlus $3 SEtH electric boat batteriesSpecify 612 24V eectnc powerlarge boat charging batteriesSpecify 6 1 2V CaRa Productssseiermioeiaaoe ox 221 605-987-5924Dear equines invitedCanton SD 57013 WA wodisat loss Now available ty Lite. workis first premium grade Ight plywood Mighty Lites ultra smooth grain finish slows ilmited filing vwtually no flaking saving hours precious building time Mighty Ute bonds eas0y ZAP other CAs cuts Ike butter X-ACTO knife Shattering spintering warpin mildew thing past Mighty Ute8 qualty formula tion currently being used leading manufac turers including BOB VIOLETT MODELS HOUSE OF BALSA because its superior strength-to-wsi~ ratio SO youre tired shattering experiences next time right. use Mighty Litel / MIg$ Lit House S rse* info Epurprisee 20130 State Road etritoa caafomiseOlvl2460 SW 65th brace Davie Fiosida 33024 213 860-1216 4732211 Mi0ty LheieaiatbUsr hobby storee everywhere may oatsr ot hum regiofial saline office neareat engine amount tip weight decide use Kids/Haught Continued page 65 make feel investment work though cover costs kids funds never turned away couldnt pay given little jobs work off cost models Imagine having mow lawn whole year As models got expensive found buying balsa bulk helped Bundles balsa became rule fellow modelers whod heard about group quick help Some sent stacks balsa left car others mailed rolls tissue paper no charge Thanks Greg owner hobby shop St Cloud visited business trip gave us box old Cox 049s props wheels gold helped kids couldnt afford engine get Con trol Line flying big project spring series Control Line Top Fun models So far 12 have finished flown After 20 flights pilots earn Ace status re ceive AMA medal get choose model own build 17 kids started day last fall 15 have stuck out Theyre already skilled modelers Control Line Free Flight fliers Much surprise two girls club still us enjoy much boys game plan now get accustomed flying two pilots circle lead ing up Mouse Racing fall /2A Combat us have wonder ful time learned lot others think might willing tackle project sort let offer some pointers Plan having fun Dont too intent making mainly learning experience try keep loose fun Dis cipline importantthe kids need learn respect tools materials theyre working Keep affordable Keep projects objectives simple reasonable Try assemble file poten tial projects well ahead time Use nat ural leaders faster builders helpers Make up workbox modeler Use shoebox like fill knife emery board pins glue etc Share fun have similarly clined modeling friend together Meet ing regular time place essential Most important relax have funand re member what youre giving kids Id glad answer questions might have Dave Haught 302 West Main Ceylon MN 56121 Good luck keep em building Astrostar/Thorkildsen Continued page 72 ribs / x %-in main bottom spar spruce other bottom spar /8 x A-in hard balsa Install main ribs except dihe dral breaks Fit glue / x A-in balsa top center spar Install geodetic ribs sanding ends required good fit Notch geodetic ribs top turbu lator spars dont install spars point youd need cut front geo detic ribs half cut notches straightedge X-Acto knife using main ribs guide notches sanded correct depth usJune 1990 191 Thin plywood enclosing nose out ermost outboard wing rib bay serves container lead shot used adlust tip weight optimum slow-flight perform ance nylon screw plugs access hole
Edition: Model Aviation - 1990/06
Page Numbers: 85, 188, 190, 191
THE WINNER February Mystery Plane contest Steve Zink Pine Castle FL Steve correctly identified Supermarine Type 508 quite few entrants thought aircraft Supermarine Attacker several differences between two aircraft sides V-tail configuration 508 two en gines tricycle gear attacker excellent candidate Car rier model very clean aircraft cir cular fuselage cross section unusual jet tail surfaces quite large just high-powered piston aircraft pre ceded it conventional landing gear rather tricycle gear later carrier aircraft Three-views Attacker appeared August 1978 CL Navy Carrier column have included Mystery Plane month can devote photo space another topic Ill announce winner April Mys tery Plane contest discuss plane itself August column Skyray Carrier 90 Nats As mentioned last column Sig will sponsoring Car rier event its Skyray 35 model Nats will flown Saturday July 21 same event will flown Sig contest June rules adapted Profile Carrier call Skyray 35 built stock outlines minor modifications adapt model Carrier flying elevator movable control surface allowed lead-out position must re main fixed flight Engines up 40 will al lowed include mufflers desired top speed will limited 75 mph scoring purposes preclude need hot engine official rules may ob tained Sig aiso will send copy ficial rules anyone sends selfaddressed stamped envelope SASE Sig introduced Skyray 35 its selection Control Line kits last year Billed aerobatic trainer sport model airplane conven tional profile design slightly unconventional materials longer Ringmaster/Flite Streak/Shoestring designs spring peoples minds think type model straight wing has just under 400 sq area aspect ratio slightly higher other designs Its wings have spruce spars Lite Ply ribs should make very durable model Overall weight about same other kit profile model same size Wood selection parts fit die cutting usual high quality Ive come expect Sig Skyray 35 should make very enjoyable throttle-equipped sport model after Nats little extra work initial building can become excellent practice model Car rier back-up model competition Though cant quali1r bonus points en tered Profile Carrier Skyray 35 transi tion Curtiss XS2C-l can accomplished eas ily Ill discuss transformation later arti cle Anyone wanting fly Skyray Carrier Nats convert model later Profile Car rier should leave top fuselage top bottom nose flat conversion Skyray 35 Carrier opera tion easy Ive included enough detail text photos allow anyone experienced Control Line airplanes build model Skyray Carrier event should fun event good introduction Carrier flying must have some interest Carrier wouldnt have read far right plan attend Sig contest will Nats Sat urday bring along Skyray 35 join fun small word caution Carrier flying can ad dictive Once youve flown Skyray 35 might find yourself planning enter Profile Car rier next contest addition kit tank wheels engine youll need three-line handle bellerank Sig sells LR Products units very good Use upright version internal controls external controls mounted top wing Use inverted unit external controls bottom wing like so-called long span units Youll also need some %2 plywood x -in engine-mount stock %2- %-in music wire few odd bits pieces real decision youve got make youre building Skyray 35 whether mount controls inside outside wing model uses external controls because like additional line slider range available configuration easier access bellcrank effective trainer Skyray 35 has have same control configuration use competition Carrier designs checked Mike Pratt Sig get approval external bellcrank didnt ask Mike about fairing over bellerank keep off oil Internal con trols easier build look better An internal line slider can incorporated tip will just little harder lock Skyray Carrier position full forward An al ternative Skyray Carrier sport flying would use Stunt-type adjustable lead-out set far aft possible still get 75mph top speed internal bellerank installation make new bellerank platform will span entire center section three W-l ribs Cut out center rib allow bellcrank platform fit inside rib Position bellerank throttle pushrod will outboard fuselage Also make sure fuselage will interfere elevator pushrod either extreme el evator throttle movement short-span bellerank will have eleva Continued page 188 June 1990 85 Control Line Navy Carrier Dick Perry 9009 Arley Dr Springfield VA 22153 Sigs Skyray 35 set up 90 AMA Nats unofficial Sig Skyray Carrier event Dick Perry Some malorbut necessarvmoda made New engine bearers extend aft wing cutout additional strength forward fuselage nose can shortened shaded lines heavier engines keep CG about nd wing spar atcn wire soiaerea ins sievator pusnrod keeps tall hook up during takeoff high-speed flight Applying Down elevator pulls latch out tube soldered hook allowing drop landing Rubberband pulls hook down stabilizes plywood block inset aft fuselage serves tail hook mount %2 wire pin controls extension hook Note nylon landing gear retainer holding brass pivot tube place allows hook removed repair sport flying External line slider use Profile Carrier events allowed Skyray Carrier sim pie make An explanation its construc tion operation found column MINI-ELECTRIC MINI POWER AT ITS BEST LIGHT WEIGHT S $1495 ngage disengage Free ocladed snapo onto motor ISY-lO 7 1 gear ratio Wheeing 19 grams NY-70R Same H'7t bat Disconnects Slide HY-70 as, Kv-42 Improved version HY-48 Apprc QUIET ANT START COST TEMSCHAERIES $2495EFC-599 Props Charge Cord aridLow coot Quick ChargEght Batteries Rs spacers etcl4 D type hattedes Ir $2795 FC-492 Remote Battery HolderIdeal accaratelyry VL Flight Batt0iy sf above add $350Above clrargVL Field box $3295 FLIGHT BATrERIES B-62 IHY-70 2 x 50 mA-Hr..$ 995 tery SJ-5 SwitchB-53 IHY-701 3 ii 50 mA-Hr 95 ractionsB33L lIY-42l 3 x t 10 mA-Hr 12P5 B-341 IHY421 4 ii 110 nJ~Hr 1595 B13L IHY-421 3 e iBO mA-Hr QIAI IUVA9i 155 naifr 45 grams1595 - r640ramo1295 very top column CL Speed/Lee Continued page 84 its lot work make mold Maybe will good item future column sure make stabilizer large enough will affect speed sure helps stabil ity stabs use 9-in span 3-in cen ter chord made out %-in very hard balsa Balsa stiffer basswood doesnt warp like plywood also prefer build V-shaped stab ie dihedral keep tips getting scarfed up landing pretty well covers airplane now lets look engine have modelers area running gas-powered RC cars RC boats go see what using engines several excellent 21s market have seen comparable speeds several different brands can find good-looking good-feeling used engine go ahead try Usually repairs needed new bearings maybe new piston get back condition buy new engine dont overload running big prop modem ABC alu minum piston running chromed brass liner RMcM engines built rev high rpm ,oflhIy fljPnr I 47443 PIPER TRI-PACER 2022 span Plans 5 HD PG Cowl 0 Partial kit 5 Alum bar stock machined wing strut fillings $4000 112 piece seti buy sell build Custom Craft Scale RIC Aircraft TRUE HAPPINESS IS BUILDING AND FLYING PIPER TRI-PACER Send check Carl V MIller 130 Yucca Drive Sedona AZ 86336 282-4810 need break-in will dam aged 10%-nitro fuel insist run ning use 7 x 4 6 x 6 prop still ex perimenting props seems 6- 6-in diameter 6-in pitch works best takes good prop pull two big wires around like fairly wide blade best speeds have 6 x 6 cut down fi berglass copy 7 x 6 Tornado have flown several brands 10%-nitro RC fuel seem run OK Since running low-nitro fuel must raise engines compression ratio right Wrong stock heads fine fact might go faster decrease compression using head gaskets various thicknesses Get few spare head gaskets fly Experiment little should find out what head clearance use dif ferent weather conditions butcher engine attempts porting polishing grinding other secret methods hop-up Fly several times first stock condition doesnt go fast think reasons biggestand almost secret proper sleeve-and-piston fit sleeve bore should round should tapered piston fits loose bottom stroke squeaky tight top best ABC en gines have squeaked top stroke should have clearance least 005 bottom sleeve about 002 in area exhaust bypass ports means 002-in difference between diameter piston inside diameter sleeve Dont try lap sleeve piston will ruin piston Brake hones can used Ill tell future columns make proper lap venturi intake restrictor unnecessary will gain speed removing using re mote needle valve mounted behind engine Its easy make saw file drills need construct out scrap block aluminum brass steel Use surgical tubing pressure fuel bladder will need little over ounce fuel about 30cc flight Ill show build takeoff dolly next column Some specialist suppliers Nick Arpino magnesium speed pans Craftsman Wood Ser vice hardwoods Nicks address 301 Wood Acres Rd East Patchogue NY 11772 Crafts mans address 1735 W Cortland Ct Addison IL 60101 responding advertisers mention read about ModelAviation CL Navy Carrier/Perry Continued page 85 tor pushrod outboard side fuselage long-span bellcrank pushrod wjll inboard side Enlarge lead-out holes ribs needed provide clearance extremes control line slider movement external bellcrank installation added extra rib extended center section sheet ing bellcrank mount bellcrank would completely nirrhnrrrt nf thv t LATHES FOR THE AVIATION MODELER UNIMAT 8 / MCwwAY 55 sriCOMPACTS E4uRArcANEwv assas UNIMAT PC 13041568-3538 CATALOG $100 Plus toll tree nunter orders & questions 188 Model Aviation $1795 er 7 leads Quick stor models $1395 02 toel erigine xnernui guiiurun iniuuniuii aiu fled movIng unit the fuselage instead having uuouuad seen author Dick Perrys installa tion solid pIece %2-ln plywood replaC es balsa sheeting thIs area Cut out fuselage clear bellcrank Note view underside wIng Continued page 190 Rubber ft EngIne Power Free FlIght Display Control Line Electric Power RIC Airplanes new Illustrated 32 page tabloid sIze catalog us ft Canada $100 Forelgh $300 Penn Valley Hobby Center 937-A W Main St Lanedele PA 19440 215- 3650770 ThE WIKLMAIK rho exlra large handle bends 118-1I4 coils 51 3Z-3/16 music wire Wire oeep eliminated ur ANTI-KREEP WIRE LOCKtm catalog also has hardware accessories JOM COMPANY 114 WashIngton Tar Dept Waukegan IL 60055 THE PIPER BRAVE 1/4 scale model Pipers latest Ag plane t wing span 30-33 lbs 5 c C power lb payload ational flaps hopper door onal Spreader Kit formed aluminum landing gear rglass cowls um-formed canopy tucted extruded foam ply hardwood E ~O95OPTIONAL 4fl Smoker l actually dustingKITSPREAD ER $100 FOR CATALOG OFRT 1 NEODESHA KS 66757 SAC KITS AND ACCESSORIES316 325-2821 Free Shipping Kit OrdersScott Airplane CompanyVISA/MASTERCARD evator travel hook stop should allow theeach gear leg should lined %2-OD brass CL Navy Carrier/Perryhook extend no about 45O hooktubing Continued page 188should no nine inches long pivot limited rules one-third fuseThats harder needs easierlage length Eight inches about right method would make bellcrank mount ofThe external line slider mounted sec rectangular 1 x 5 piece 42 ply useond rib tip nine inches inboard part wing sheeting immediately behindtip rib Form slot slider mak spar Cut out fuselage make room ing partial rib %-in balsa arA gluing bethe bellcrank Use washers %2 plywood spac- tween spar trailing edge Balsa sheet ers under bellcrank rather cutting slotaround slot will provide base coverin bellcrank mount bellcrank pivot pining Insert slider after wing covered clearance way oil wont get inside wing new two-wheel landing gear mounts nose modified allowed rules bythrough lower hardwood engine bearer installing engine bearers extend wayForward location aids Carrier landings wing cutout way roombut makes normal landings prone bounc landing gear attach point through aing Note aluminum pads installed solid engine bearer flex point noseto provide firmer engine mounting surface moved back past leading edge wingThe outboard wing tip should have about three rather being right leading edge anounces weight internal control system has engine weighing 10 oz nose shouldbeen used external bellcrank because shortened lighter engine can use thethe line guide being closer fuselage litstandard length nosetIe two ounces can used best per new partisi rID ana some oaisa sneesingformance able remove excess weight tail-hook mount consists hardwoodform slot accepts external lead-for sport flying build enclosed plywood box block inset fuselage bottom used ply-out guide after wing has coverein outboard rib bay use lead shot steel wood however basswood engine-mount line slider constructed 1/ nylonBBs adjust tip weight needed stock would also work shape criticalsheet Sig sells -in brass channel -in stop limits hook travel should inbalsa spruce internal framing 4 ply-Ready cover tip weight no control block balsa Use photos forwood external facing hold together 4system tail hook landing gear fuel tank enguidance tail hook formed %2 wire40 bolt nut washers will hold slider agine Skyray can easily weigh less 20 %-in-OD brass-tube bearing landingfixed position Skyrsy Carrier eventoz finished model will slightly over two gear retainer keeps bearing placepounds ready fly depending course Use / wire small piece tubing formThe landing gear bent -in wire latch holds hook up hooks formounted shown photo portion onding advertisers mention rubberband latch should adjusted sothrough fuselage should long enough ex hook releases about half Down el-tend completely through holes about ModelAviation GLIDER RETRACTS Servo actuated 9 de acts Ove cente up down ock urn num pa ta made compute contro ad milling machine 6D61-T6 beautifully crafted retracts made finest materials available best offered anywhere Made USA 1/5 SCALE 3 oz wheel 1-9/16W s 4L 2H 23/u wheel max 1/4 SCALE TWO TO CHOOSE FROM STO FOR GLIDERS UP TO 10 LBS 52 oz wheel 2W 3-7/15L 2I4 H 35 wheel max MD FOR GLIDERS OVER 10 LBS 65 OZ 2W 6L s 23/4H 35 wheel max 1/3 SCALE 88 OZ wheel 23/4W St 23/aH 5 wheel max FIvE-FOOT PusHAOOs-1/16 Music Wire casing Sand stamped self-addressed envelope pricing info SCALE GLIDER COMPONENTS 7034 FERN PLACE CARLSBAD CA 82009 6191 931-1438 190 Model Aviation WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries chargers need agel Fits 48V Ax 96V Tx packsPlus $5 S&HWet Cell & Cycier-Charger $23995 Others available write call eguiar Model$4695 eIFor field kit smallPlus $3 SEtH electric boat batteriesSpecify 612 24V eectnc powerlarge boat charging batteriesSpecify 6 1 2V CaRa Productssseiermioeiaaoe ox 221 605-987-5924Dear equines invitedCanton SD 57013 WA wodisat loss Now available ty Lite. workis first premium grade Ight plywood Mighty Lites ultra smooth grain finish slows ilmited filing vwtually no flaking saving hours precious building time Mighty Ute bonds eas0y ZAP other CAs cuts Ike butter X-ACTO knife Shattering spintering warpin mildew thing past Mighty Ute8 qualty formula tion currently being used leading manufac turers including BOB VIOLETT MODELS HOUSE OF BALSA because its superior strength-to-wsi~ ratio SO youre tired shattering experiences next time right. use Mighty Litel / MIg$ Lit House S rse* info Epurprisee 20130 State Road etritoa caafomiseOlvl2460 SW 65th brace Davie Fiosida 33024 213 860-1216 4732211 Mi0ty LheieaiatbUsr hobby storee everywhere may oatsr ot hum regiofial saline office neareat engine amount tip weight decide use Kids/Haught Continued page 65 make feel investment work though cover costs kids funds never turned away couldnt pay given little jobs work off cost models Imagine having mow lawn whole year As models got expensive found buying balsa bulk helped Bundles balsa became rule fellow modelers whod heard about group quick help Some sent stacks balsa left car others mailed rolls tissue paper no charge Thanks Greg owner hobby shop St Cloud visited business trip gave us box old Cox 049s props wheels gold helped kids couldnt afford engine get Con trol Line flying big project spring series Control Line Top Fun models So far 12 have finished flown After 20 flights pilots earn Ace status re ceive AMA medal get choose model own build 17 kids started day last fall 15 have stuck out Theyre already skilled modelers Control Line Free Flight fliers Much surprise two girls club still us enjoy much boys game plan now get accustomed flying two pilots circle lead ing up Mouse Racing fall /2A Combat us have wonder ful time learned lot others think might willing tackle project sort let offer some pointers Plan having fun Dont too intent making mainly learning experience try keep loose fun Dis cipline importantthe kids need learn respect tools materials theyre working Keep affordable Keep projects objectives simple reasonable Try assemble file poten tial projects well ahead time Use nat ural leaders faster builders helpers Make up workbox modeler Use shoebox like fill knife emery board pins glue etc Share fun have similarly clined modeling friend together Meet ing regular time place essential Most important relax have funand re member what youre giving kids Id glad answer questions might have Dave Haught 302 West Main Ceylon MN 56121 Good luck keep em building Astrostar/Thorkildsen Continued page 72 ribs / x %-in main bottom spar spruce other bottom spar /8 x A-in hard balsa Install main ribs except dihe dral breaks Fit glue / x A-in balsa top center spar Install geodetic ribs sanding ends required good fit Notch geodetic ribs top turbu lator spars dont install spars point youd need cut front geo detic ribs half cut notches straightedge X-Acto knife using main ribs guide notches sanded correct depth usJune 1990 191 Thin plywood enclosing nose out ermost outboard wing rib bay serves container lead shot used adlust tip weight optimum slow-flight perform ance nylon screw plugs access hole