Ho Benny CL Howards 1930s racer Scale competition 46 Model Aviation ank Beatty Pete rest Note hand-carved scale prop screw eye used check CG Tips gleaned Don Typonds Paint Pilot Figures tape Dummy manifold largest cutout helps hide otherwise Robins View Productions added realistic detail unsightly hole Stacks protrude slightly above openings Fullscale aircraft engineers faced challenging design performance requirements often can resolved compromise tradeoff same holds true model designers will make big difference model will designed built instance weekend sport model all-out competition machine Pete intended competition machine would participate future Nationals order enhance its true scale appearance control system leadout wires should enclosed wing recognized sharply curved fillet wing-to-fuselage joint would complicate locating bellcrank Space limitations clearances dictated use 2 /-inch short-span bellerank though might induce somewhat sensitive foreand-aft pitch-axis flight qualities As design work progressed noted bellcrank mounting plate must also serve rear undercarriage strutmounting plate raised concerns hard landing might buckle plate render control system inoperable fear has proved groundless Finally seemed wing center section should built separate unit order facilitate bellcrank rear undercarriage strut installations An alternate approach weekend sport model would locate 3- 3/2-inch long-span bellcrank top engine mounts between bulkheads 6 9 fuselage wing center section could built unit fears about undercarriage strut location would also eliminated course revised cutouts rerouting throttle elevator pushrod linkages would required Tradeoffs anyone CONSTRUCTION Though Pete especially difficult model build construction sequence important tail surfaces wing center section wing outer panels built first construction will delayed parts needed Stabilizer Elevators Thin scalelike strong fabric-covered tail surface structures can achieved building around internal /64 plywood core Cut /&i plywood cores stabilizer elevators Cement spars balsa ribs cores Soak four /j X a strips ammonia bind around structures outlines dry strips can cemented structures Install elevator horn Robart hinges Build up epoxy around hardware items plywood cutouts joints quite strong will need no other reinforcement Drill stabilizer spar use cyanoacrylate CyA glue attach /16 brass tubing holes rigging wire locators October 1999 47 Ready fuselage covering Author prefers realism sturdiness small basswood stringers sag after covering finish have applied Cover surfaces using Sig Stix-it Sig Koverall Sig clear dope set aside Fin/Rudder built same manner stabilizer elevators Fitting shaping rudder cone fairings must wait until can faired rear fuselage Wing Center Section Make up bellcrank mounting plate Bolt bellerank plate check freedom movement remove bellcrank plate center section will built upside down building board Pin /s X /2 x 7 wood strip board guide will help align center section bulkheads Fit bulkheads 6A 7A 8 onto bellcrank mounting plate Epoxy parts together before set up quickly pin parts building board using wood strip bulkhead cutouts ensure alignment Epoxy plywood ribs H bulkheads 5 9A assembly Plank exposed curved wing root fillets l/ balsa strips dry lift assembly board plank fillets top surface /s balsa strips CyA ywood rectangles bulkheads 6A 9A form boxlike receptacles will mate tabs bulkheads 6 9 wing assembled fuselage system will square wing fuselage set dihedral angle set incidence angle accurately rear landing gear struts will bound bellcrank mounting plate later key structural element Wing Outer Panels Cut out ribs false ribs spars leading trailing edges Block up pin aileron spar leading trailing edges building board Slip ribs slots Thread /s basswood spars through ribs Fit false ribs position CyA joints Lift assemblies board Fit 3/4 balsa tips wings Fit sheet balsa fillers mounting aileron horn details Box spars rigging wire locations basswood blocks Add wing tip weight Shape sand wing panels final shape Test-fit center section outer panels Mark matching cutouts port wing root H ribs remove material required leadout wire passageway Use extension drill bit pierce holes ribs leadout wires port outer wing panel Install tubing leadout wire guides wingtip Cut ailerons separate wing panels Drill spars CyA As diameter brass tubing holes rigging wire locators Set assemblies aside now Fuselage Obtain piece 3/-i diameter Reynolds aluminum tubing 26 inches long Make up plug assembly see drawing detail CyA end tubing plug end will slip cutout bulkhead 13 narrow tail end fuselage Carefully align CyA /s x s basswood strip onto bottom side tubing will keep bulkheads rotating out alignment being threaded onto tube Carefully mark bulkhead locations tube assembly will key tool used building straight round stringered fuselage am indebted Robert Underwoods article describing technique Model Airplane News March 1996 Cut out bulkheads Make up bind forward landing gear strut axle assembly bulkhead 4A Thread bulkheads onto tubing Carefully align bulkheads CyA top three stringers side place Before proceeding use wing center section make sure tabs fuselage formers mate corresponding cutouts wing center section bulkheads Epoxy engine mounts gussets / dowel locking pegs fuel tank 11/4 diameter plastic golf tube tailskid assembly position Use plastic golf tube allows us avoid making nonscale openings cowling providing passage through fuselage cooling air can exit out cockpit opening 48 Model Aviation center section Brodak three-wire belicrank temporarily installed photo purposes Starboard wing panel test-fitted center section Three panels joined fairing blocks installed bellcrank leadout wires place Note wing root curve Upper cowl 1/32 plywood Lower section /32 basswood planked over plywood bulkheadslighter balsa Photos author Graphic Design Jill Ann Cavanaugh Install remaining stringers above fuselage centerline Study plans drill temporarily fit two A6 diameter brass tubing rigging wire locators position between bulkheads 6 7 Cut out 1/32 plywood cowling soak ammonia snap tape position top fuselage dry mark drill holes rigging wire locators CyA cowling tubing place Make up head rest fairing block cement fuselage Add /8 balsa filler strips base cowling headrest Bolt engine engine mounts Make up install tntermediate throttle crank Temporarily tape wing center section fuselage order bend up fit I64 diameter music wire rear landing gear strut correct shape mate main gear axle Make up linkage throttle crank Set center section rear landing gear strut throttle linkage aside now Cowling Three plywood formers four plywood stringers assembled trued Cover upper structure A2 plywood cowling similar procedure used fuselage Plank lower cowling /32 x wood strips nose block three layers wood hollowed shown drawings Cowlings made hardwoods just smidgen difficult build just little heavier built balsa However hardwoods take paints beautifully ding resistance high openings can have thin crisp scalelike edges hold up use cowling break models firewall slides forward removal aligned held position four /s dowel guide pins firewall two blind mounting bolts hidden behind spinner Cover cowling /.ounce fiberglass set aside Wing Assembly wing will assembled upside down building board Use one-inch-thick block wood raise center section above building board surface Slip outer wing panels onto center section block tips up approximately t/ inch Epoxy joints dty lift assembly board Fit carve balsa leading trailing edge center section root fairing blocks shape Leave long enough extend fuselage past planking line fuselage planking can trimmed butt against root fillets Bind epoxy rear undercarriage struts mounting plate Thread leadout wires through wing bolt bellcrank throttle linkage mounting plate Bend up leadout loop ends now cover sharp ends tape prevent injuries Give entire wing assembly good final sanding Use Sig Stix Sig Koverall cover wing Brush two coats clear dope set assembly aside Assembly An unsightly nonscale cowling opening glow plug access avoided using remote glow plug connector Install its October 1999 49 Front view shows stringer notches cooling air duct opening Four /a dowel pins used align cowl Aluminum tubing guide passes through holes bulkheads ensures fuselage will alignment Bulkheads engine mount main landing gear struts some stringers have installed Note cooling air duct HOWARD PETE Type CL Scale Wingspan 4O/4 inches Engine 05 32 Flying weight 65 ounces approx Construction Built-up Covering/finish Sig Koverall Sig dope Tail surfaces have 1/ea plywood cores balsa ribs Strong light realistic fabric-covered structures 1-1/4 OIA COOLINGI/IS DIA GRASS TUBING AIR OUTLETRIGGING WIRE GUIDE IKMART PLASTIC GOLF CLUB TUBE 7IS ALL STRINGERS IA U B BASGWOOO I/B SOT S AL S I/B PlYWOOD rR PLYWOOD SEPARATIONSEPARATION LINE CUT AWAT AFTERTA8 ASSEMBLY TO CLEAR 2 ~1ET1ZT2II2 CARBURETOR DETAILS SIMMY ERRALIOTGA -iIE7STUCK N ROUST I/SO PLYWOOD SPLIT BIROR REMOVE ASTYPICAL SLOT DETAIL IN POURERS BEGS AFTERDAYRRI 7 TO INTERLOCK RITA SLOTG IN I/3D PLYWOOD COWLINSO COWLING GOLD I/B PLYIROOS LOCATIONS 5 DII I/A RAGSWOOS PLAGUING RECESS HUGO I SCALE PROP READ BOLTII ASOS IRESS COWLING STRINGERS I/B PLYWUOD COLOR SCHEME AIRCRAFT ALL AEGIS WRITE LETTERING & DETAILS AG NOTES Ii CENTER OPTRRGTTLE ONANR SNAWITY 031 BRAGS 0 READLOCR 001 K 1-I/SD PLYWOOb T XlCOOLING I MOTE BLOWIlAIR DUCT / PLUI CONNECTOR__Il ENGINE --- FASTA DI/UOIA SPINNER 0 B ASSOCIATESEBTENSION NO SOUlGRAFT RG-SCALE PROVIDES ACCESS TO REMOTE GLOW PLUG BASSWOOD PA RNBG~ MUDO WRE SAG C W ~12 BBA WE LANSING SEAR SETAIL NOT TO SCALE S-i/S 02 TANK RU--N ~-/e1/PJ~ P BP WOOB A~I-CGAAL GWOOD EDJlBEWALL BSR BA GAiSUBD A4z{jBASSROL ~2JjB BA GA - SE'- SE ABA OS NERO ______________REMOTE GDA PLUS K DON T INS ULOCY BUSYWOSA I_______________________I--- STRINGERS ORATTES CLARITY II/BB 3/1K BASSWOOD CoR TO 5/4 ALUMINUM TUBING BOTTOM SIDE DROWN FOR CLARITY -S/IA BASGWUOD PLSO IS GNAW PIT CRA IN TABNS OK FUSELAGE FORMER ALIGNMENT GUIDE SELLORANK B UNDER CARRIAGE B RAT MOAN SB PL WOOSREND DOORS I/4G S/B _________ BASGWOBO~5~ A/4~WELL. \ BY DOER OFFSET LAMINATES I/IAG I/N BALSA I/NM PLYWOOD CURE RI I/IA Al/B BALGA I/ B 5/5 BALSA UBLDITh\ V BLACK DATLIN K SS RNGERS SR DIG ELYATOR PUGRROOAXURNSMUSIC WIRE 1/4 DIA MUSIC WIRE4 1/5 PLYWOOD I- I/OPLYWGSD II REGO TAI SKID SUPPORT SISSASB III T7/2YIBRATON DAMPENERRR9NG WRE PTT ASS I/IA SIAI/lB WA BRASS TAKE BRAGS RODCRW N DINLE 7DB PR I/SDOIA MUSIC ARE RIGGING WIGESSLBTSDIN MISIC /ABLE /G DR IRE RIGGING MAGIC WIRE PlN- I/SD GIA9 SI/BDIA WILLIAMS BROSMAGIC AWE ""NUTOUT TRREA1~~ GOLDEN ARE WHEELS MO GDREAM 010 GUT BRAGG BRACKETSLIP ONTO ASLE RSOLDERI DOUBLE AROUND DRILL ROD SWEAT SOLDER FREE ENDS DRILL SOT & BEND AS SASAG ASSEMBLE N SOLGER SN ABLE AG GROWN NOT TO SCALE AVIATION I BOULE 51 -0 WINGSPAN /U SESIDWED B DRAWN BY PRANK BEUTTY WACO PLAN ST PRUNA BEATTY 1O-ISRB ALL RISITS SYCETIBRAS cii 0 0 D 0 - L4- II TJjUIJ II BRASS TUBING PITOT TUBE DETAILS SLACK 37"SK-ZYPITOT TARE NR-ZT IROD ILYIK BALSAGOLD WITHBLACK 37 ING WIRE LOCATORS _________________LEADING EGGEBLACK OOTLWESGOD-IN SPARD WITH SASSAUSO 70 OUNCE LEAD ANGLE RIG sj7 LE RiB 3voosr RALSA PRONTSPAR IWW B BASSWOOD REAR SPAR II -EflQO_SPAR 1/B BUOSIROOD 0 REUD - - COWLNG PATTERG 1732 PLYWOOD FRONTREAR SLOTS INTERLOCIG WITH MATING SLOTS IN BOLAIIEAT ROTH COWLINSO B PL WOOD 00 RA NO EDGESOWEA ERA EMSS AGOG SE0 C AWA ERAN AS SE M B ~1II1 B OS j1~114YjL7GSOAAREB WAC BASSWOOO SPAR AR SPARI AGEDD7 175 PLTWOOO -O REDO 3\RALSA PAIRING COWLING PATTERN 70 PTWGDSI FRONTREARPLANK SIUOATEDI/B BALSA GRASS LATOP N BOTTOM II HDRARIRS PLYWOOD COKE DARK GREENTRIM ERCESS MATERIAL AFTER_________ ASSEMBLY BOTR COWLINGS BUILD UP EPOG AROUNDRODART BELLORANK MOONTCU OGGAREI/IA DIA GRASS TUBE BIASING WIRE LOCATOR UP-RIGHT BELLEBANK BALSA PAIRB4G 3 DIHEDRALI1~ZDCI ING WIRE CONNECTION DETAIL CAL AIBRATION DAMPENER AIR C 0-I/B BRASS ROD 3RE PLYWOOD DISKALLRIISI/reA&SAE I1I11 0I23BSK EE BRACKET DETAL ILifEP 2-1i3f~i PRESS I/IN DIG BRASSPAGS I/GO DIG WIRE THRASLIP 5/32 BRASS TRAINS THEN COGERPHINT NWIRED- ALLOW 3/B OVERLAP TUBING INTO DRiLLEDTONING BEND WIRE ENDODYER WIRES SWEAT SOLDER BOLE N COG -PARALELL WITH RIGGING POLISH MODEL TO SCALESESIGNED N ORAWN RY FRANK W BEATTY NOTE RIGGING WIRES ARE CONSIDERED TO SE FUNCTIONAL MODEL DHOILO NOT BE FLOWN WITHOUT TREM ~ARIAT ION PETE INKED PLAN ST FRANG REATTT BR-SB ALL RIOGTS SHEET RESERVES 2 OP 0 0 C 0 CD 0 0 0 cii mounting block bracket firewall bulkhead 4A Access remote glow plug through scale hole bottom cowling Attach wine fuselage Tabs bulkhead separation lines should mate receptacles wing center section bulkheads should automatically align wing axes double-check alignments before epoxying wing llace Cement dowel-pin fin stabilizer mount assembly fuselage Install elevator pushrods throttle linkages check fieedom movement Fit Vs x /4 sheet balsa fairings way around wing root fuselage remainder stringers can added Fit shape cement fairing blocks fin-to-stabilizer joint Sand entire fuselage well cover using Stix-It Koverall two coats Sig Dope Install fairings undercarriage axle struts prefer use basswood such fairings because resists compression fatigue-type distortions model has hard landing Cover struts /2-ounce fiberglass Finish At point model assembled engine wheels hardware items installed weighed approximately 51 ounces hung nose-down about 50 suspended its desienated Center Gravity CC location reasonable assume completed model would weigh mid 60s require little no ballast balance properly seemed going well fatal error made time scrapped 40-year-old hobby type compressor bought new /2-horsepower compressor same time switched brands dope new sealers dopes thinned applied manner accustomed realized new paints thicker required great deal thinner fewer coats would required little old compressor would have bilked new compressor dutifully laid heavy stuff Suddenly aware now very heavy model gone decidedly tailheavy Several courses action including stripping paint off contemplated summer contest season dreadfully near decided go ahead finish model finishing process model should include number coats sanding sealer followed coats white dope wet-or-dry sanding after coat satisfied white can dress up model decorative markings Mask off racing registration numbers wings fuselage sides spray black Cover up 37s wings fuselage Mask around registration numbers wing top bottom surfaces /s tape Spray remaining enclosed areas gold Prepare pane glass coating very soapy water dry pane sprayed gold Pete NR-2Y lettering rudder cut out lifted glass applied model using thinner bonding agent protected clear dope overspray See description technique Hot Canary article March 1996 Model Aviation Talcum powder rubbed lightly over gold Pete NR-27 lettering use black Top-Elite Panel-Line Pen draw black pinstriping around lettering Protect clear dope overspray little previous success sort ink applications doped surfaces procedure made almost like writing note paper after talcum applied little trick am indebted information gleaned Windy Urtnowskis videotapes Various panel lines applied using talcum panel-line pen technique Simulated rivets screw heads applied Pilot Silver Marker Protect clear dope overspray Finally several coats Sig clear dope sprayed over entire model whole hand-rubbed compound polished Final Assembly Study drawings carefully install rigging wires INTRODUCING NW LINE PRECISION PROP NUTS AND HUBS Now greater choice quality Tru-Turn products 3 sizes PROP NUTS ranging 5/8 7/8 diameter 2 shapes available stock R/O engine thread sizes 5 sizes PROP HUBS ranging 1to 2 diameter 2 shapes new PROP NUTS PROP HUBS addition existing line precision aluminum spinners range 1-1/2 6 over 90 shapes sizes blade configurations new Tru-Turn PROP HUB line complimented extensive line over 70 adapter kits Tru-Turn makes adapter production R/O engine market have adapter problem. help phone call away. See hobby dealer call us direct. Made USA PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY ATILITY T LOOKS TY PO Box 836 South Houston Texas 77587 713 / 943-1867 Visit us internet ru-turnnet ws 52 Model Aviation s tail Details brackets axles sweated tubing fittings rigging wire junction should selfexplanatory fear axle bracket fittings would fail first landing Instead four original-design fittings top wing failed first flight system replaced sweat tubing hardware shown rigging setup holding up nicely rigging considered functional model should flown cockpit doors formed 010 sheet brass doors attached miniature pins hinge line drawn panel line pin protected clear dope Finish model adding remaining details such vibration dampeners exhaust stacks dummy carburetor manifold Contest rules require us install dummy pilot visible flight Mine painted using advice gleaned Don Typonds fabulous videotape Paint Pilot Figuresit looks great videotape should serious Scale builders library true-scale carved propeller adds wonders models appearance prop made four /32 basswood laminations Carve stain paint varnish bolt model will pleased results Flying There no question excess weight bad avoided lately have come around thinking also down side lightly loaded models thing get bounced around wind especially true doing taxi operations Such operations upwind side circle coming wind can troublesome have come realize heavier models enjoy some advantages Truly overweight models can flown successfully balanced properly have ample power Such models very unforgiving pilot errors however pilot errors no-no built originally intended ready-to-fly weight 60-65 ounces Pete will dream machine aspects flying ground-handling operations So fly 90-ounce Pete sure model balanced properly nose should bang down approximately five degrees suspended CG location Fly model shorter-than-normal linessay 52 feet long OS 32 provides ample power Pete flies quite fast smooth Takeoffs level flight routine matters High flight operations especially attempted significant amount wind will definitely put model risk 54 Model Aviation 4 stalling out disastrous consequences Power-on landings accomplished maintaining sufficient power speed fly airplane way ground Gradually reduce power altitude until model has touched down rolling its main gear reduce power bit use bit elevator set tail ground trick maintain enough speed avoid stalling model landing approach yet going slowly enough avoid ballooning back air upwind side landing approach taxi run am telling Pete going weigh 65 ouncesis During learning process flying overweight clipped-wing racer some really hard landings made model cartwheeled once Midwest contest its wheels dug circles soft dirt surfaces Much surprise no compression fatigue stress cracks have shown up part models surface So listen up Build light fly right k Beatty 2608 Pontoon Rd Granite City IL 62040 Custom Built R/CAirCr aft Engines Single Twin cylinder Gas Engines Sini948 Fox Manufactuf any has building worlds finest model airplane motors carry filltliie accessories model airplane engines including Fox 24 32 42 58 Fox new engines coming soon Call today free catalog look us up internet wwwfoxmanufacturingcom 501 646-1656 Fax 501 646-1757 5305 Towson Avenue Fort Smith AR 72901 e-mail foxmotors@aolcom /CO tRI Olt1ffA4aUchi Association RnR Products Presents Wayne Handleys new Oracle TURBO RAVEN 1/5 Scale Options 1 High performance 2 mu vinyl graphics masking Set includes Raven masking gold border fuse wing wheel pants Oracle graphics wing stab fuse Price $65 Option 2 Factory applied graphics DuPont Chroma paint Graphics t Gene Barton Spinner Just looking Turbo Raven screams - EXTREME Two months after its debut Stockton CA Airshow 11/98 Wayne new Turbo Raven set new time-toclimb world record sea level 3000 meters 9843 feet less minute 10 seconds Turbo Ravens sexy sleek lines generous proportions ie large fin/rudder area gigantic strip ailerons allowed us design fully molded great flying model deviating originals outline no STAND-OFF-SCALE 4- Light weight hollow-core wing technology utilizing epoxy glass & carbon fiber skin hinging both wing stabilizer 4- Removable wing stab already mounted 4- Carbon fiber gear strut its mount hardware place 4 Durable gel-coat surfacing red/white no shrink film used zontally split engine cowl realism service ability removing prop spinner 4 Control surface horns attached Introductory Price ping Handling 56 Model Aviation ff best model aitplane parts First Line Signature Series AIatIo 935 Tamarack Avenue San Jose CA 95128 Phone 408248-4642 Fax 408248-4642 Email slpstream@earthlinknet Website wwwslipstream-aviationcom
Edition: Model Aviation - 1999/10
Page Numbers: 46, 47, 48, 49, 50, 51, 52, 54, 56
Ho Benny CL Howards 1930s racer Scale competition 46 Model Aviation ank Beatty Pete rest Note hand-carved scale prop screw eye used check CG Tips gleaned Don Typonds Paint Pilot Figures tape Dummy manifold largest cutout helps hide otherwise Robins View Productions added realistic detail unsightly hole Stacks protrude slightly above openings Fullscale aircraft engineers faced challenging design performance requirements often can resolved compromise tradeoff same holds true model designers will make big difference model will designed built instance weekend sport model all-out competition machine Pete intended competition machine would participate future Nationals order enhance its true scale appearance control system leadout wires should enclosed wing recognized sharply curved fillet wing-to-fuselage joint would complicate locating bellcrank Space limitations clearances dictated use 2 /-inch short-span bellerank though might induce somewhat sensitive foreand-aft pitch-axis flight qualities As design work progressed noted bellcrank mounting plate must also serve rear undercarriage strutmounting plate raised concerns hard landing might buckle plate render control system inoperable fear has proved groundless Finally seemed wing center section should built separate unit order facilitate bellcrank rear undercarriage strut installations An alternate approach weekend sport model would locate 3- 3/2-inch long-span bellcrank top engine mounts between bulkheads 6 9 fuselage wing center section could built unit fears about undercarriage strut location would also eliminated course revised cutouts rerouting throttle elevator pushrod linkages would required Tradeoffs anyone CONSTRUCTION Though Pete especially difficult model build construction sequence important tail surfaces wing center section wing outer panels built first construction will delayed parts needed Stabilizer Elevators Thin scalelike strong fabric-covered tail surface structures can achieved building around internal /64 plywood core Cut /&i plywood cores stabilizer elevators Cement spars balsa ribs cores Soak four /j X a strips ammonia bind around structures outlines dry strips can cemented structures Install elevator horn Robart hinges Build up epoxy around hardware items plywood cutouts joints quite strong will need no other reinforcement Drill stabilizer spar use cyanoacrylate CyA glue attach /16 brass tubing holes rigging wire locators October 1999 47 Ready fuselage covering Author prefers realism sturdiness small basswood stringers sag after covering finish have applied Cover surfaces using Sig Stix-it Sig Koverall Sig clear dope set aside Fin/Rudder built same manner stabilizer elevators Fitting shaping rudder cone fairings must wait until can faired rear fuselage Wing Center Section Make up bellcrank mounting plate Bolt bellerank plate check freedom movement remove bellcrank plate center section will built upside down building board Pin /s X /2 x 7 wood strip board guide will help align center section bulkheads Fit bulkheads 6A 7A 8 onto bellcrank mounting plate Epoxy parts together before set up quickly pin parts building board using wood strip bulkhead cutouts ensure alignment Epoxy plywood ribs H bulkheads 5 9A assembly Plank exposed curved wing root fillets l/ balsa strips dry lift assembly board plank fillets top surface /s balsa strips CyA ywood rectangles bulkheads 6A 9A form boxlike receptacles will mate tabs bulkheads 6 9 wing assembled fuselage system will square wing fuselage set dihedral angle set incidence angle accurately rear landing gear struts will bound bellcrank mounting plate later key structural element Wing Outer Panels Cut out ribs false ribs spars leading trailing edges Block up pin aileron spar leading trailing edges building board Slip ribs slots Thread /s basswood spars through ribs Fit false ribs position CyA joints Lift assemblies board Fit 3/4 balsa tips wings Fit sheet balsa fillers mounting aileron horn details Box spars rigging wire locations basswood blocks Add wing tip weight Shape sand wing panels final shape Test-fit center section outer panels Mark matching cutouts port wing root H ribs remove material required leadout wire passageway Use extension drill bit pierce holes ribs leadout wires port outer wing panel Install tubing leadout wire guides wingtip Cut ailerons separate wing panels Drill spars CyA As diameter brass tubing holes rigging wire locators Set assemblies aside now Fuselage Obtain piece 3/-i diameter Reynolds aluminum tubing 26 inches long Make up plug assembly see drawing detail CyA end tubing plug end will slip cutout bulkhead 13 narrow tail end fuselage Carefully align CyA /s x s basswood strip onto bottom side tubing will keep bulkheads rotating out alignment being threaded onto tube Carefully mark bulkhead locations tube assembly will key tool used building straight round stringered fuselage am indebted Robert Underwoods article describing technique Model Airplane News March 1996 Cut out bulkheads Make up bind forward landing gear strut axle assembly bulkhead 4A Thread bulkheads onto tubing Carefully align bulkheads CyA top three stringers side place Before proceeding use wing center section make sure tabs fuselage formers mate corresponding cutouts wing center section bulkheads Epoxy engine mounts gussets / dowel locking pegs fuel tank 11/4 diameter plastic golf tube tailskid assembly position Use plastic golf tube allows us avoid making nonscale openings cowling providing passage through fuselage cooling air can exit out cockpit opening 48 Model Aviation center section Brodak three-wire belicrank temporarily installed photo purposes Starboard wing panel test-fitted center section Three panels joined fairing blocks installed bellcrank leadout wires place Note wing root curve Upper cowl 1/32 plywood Lower section /32 basswood planked over plywood bulkheadslighter balsa Photos author Graphic Design Jill Ann Cavanaugh Install remaining stringers above fuselage centerline Study plans drill temporarily fit two A6 diameter brass tubing rigging wire locators position between bulkheads 6 7 Cut out 1/32 plywood cowling soak ammonia snap tape position top fuselage dry mark drill holes rigging wire locators CyA cowling tubing place Make up head rest fairing block cement fuselage Add /8 balsa filler strips base cowling headrest Bolt engine engine mounts Make up install tntermediate throttle crank Temporarily tape wing center section fuselage order bend up fit I64 diameter music wire rear landing gear strut correct shape mate main gear axle Make up linkage throttle crank Set center section rear landing gear strut throttle linkage aside now Cowling Three plywood formers four plywood stringers assembled trued Cover upper structure A2 plywood cowling similar procedure used fuselage Plank lower cowling /32 x wood strips nose block three layers wood hollowed shown drawings Cowlings made hardwoods just smidgen difficult build just little heavier built balsa However hardwoods take paints beautifully ding resistance high openings can have thin crisp scalelike edges hold up use cowling break models firewall slides forward removal aligned held position four /s dowel guide pins firewall two blind mounting bolts hidden behind spinner Cover cowling /.ounce fiberglass set aside Wing Assembly wing will assembled upside down building board Use one-inch-thick block wood raise center section above building board surface Slip outer wing panels onto center section block tips up approximately t/ inch Epoxy joints dty lift assembly board Fit carve balsa leading trailing edge center section root fairing blocks shape Leave long enough extend fuselage past planking line fuselage planking can trimmed butt against root fillets Bind epoxy rear undercarriage struts mounting plate Thread leadout wires through wing bolt bellcrank throttle linkage mounting plate Bend up leadout loop ends now cover sharp ends tape prevent injuries Give entire wing assembly good final sanding Use Sig Stix Sig Koverall cover wing Brush two coats clear dope set assembly aside Assembly An unsightly nonscale cowling opening glow plug access avoided using remote glow plug connector Install its October 1999 49 Front view shows stringer notches cooling air duct opening Four /a dowel pins used align cowl Aluminum tubing guide passes through holes bulkheads ensures fuselage will alignment Bulkheads engine mount main landing gear struts some stringers have installed Note cooling air duct HOWARD PETE Type CL Scale Wingspan 4O/4 inches Engine 05 32 Flying weight 65 ounces approx Construction Built-up Covering/finish Sig Koverall Sig dope Tail surfaces have 1/ea plywood cores balsa ribs Strong light realistic fabric-covered structures 1-1/4 OIA COOLINGI/IS DIA GRASS TUBING AIR OUTLETRIGGING WIRE GUIDE IKMART PLASTIC GOLF CLUB TUBE 7IS ALL STRINGERS IA U B BASGWOOO I/B SOT S AL S I/B PlYWOOD rR PLYWOOD SEPARATIONSEPARATION LINE CUT AWAT AFTERTA8 ASSEMBLY TO CLEAR 2 ~1ET1ZT2II2 CARBURETOR DETAILS SIMMY ERRALIOTGA -iIE7STUCK N ROUST I/SO PLYWOOD SPLIT BIROR REMOVE ASTYPICAL SLOT DETAIL IN POURERS BEGS AFTERDAYRRI 7 TO INTERLOCK RITA SLOTG IN I/3D PLYWOOD COWLINSO COWLING GOLD I/B PLYIROOS LOCATIONS 5 DII I/A RAGSWOOS PLAGUING RECESS HUGO I SCALE PROP READ BOLTII ASOS IRESS COWLING STRINGERS I/B PLYWUOD COLOR SCHEME AIRCRAFT ALL AEGIS WRITE LETTERING & DETAILS AG NOTES Ii CENTER OPTRRGTTLE ONANR SNAWITY 031 BRAGS 0 READLOCR 001 K 1-I/SD PLYWOOb T XlCOOLING I MOTE BLOWIlAIR DUCT / PLUI CONNECTOR__Il ENGINE --- FASTA DI/UOIA SPINNER 0 B ASSOCIATESEBTENSION NO SOUlGRAFT RG-SCALE PROVIDES ACCESS TO REMOTE GLOW PLUG BASSWOOD PA RNBG~ MUDO WRE SAG C W ~12 BBA WE LANSING SEAR SETAIL NOT TO SCALE S-i/S 02 TANK RU--N ~-/e1/PJ~ P BP WOOB A~I-CGAAL GWOOD EDJlBEWALL BSR BA GAiSUBD A4z{jBASSROL ~2JjB BA GA - SE'- SE ABA OS NERO ______________REMOTE GDA PLUS K DON T INS ULOCY BUSYWOSA I_______________________I--- STRINGERS ORATTES CLARITY II/BB 3/1K BASSWOOD CoR TO 5/4 ALUMINUM TUBING BOTTOM SIDE DROWN FOR CLARITY -S/IA BASGWUOD PLSO IS GNAW PIT CRA IN TABNS OK FUSELAGE FORMER ALIGNMENT GUIDE SELLORANK B UNDER CARRIAGE B RAT MOAN SB PL WOOSREND DOORS I/4G S/B _________ BASGWOBO~5~ A/4~WELL. \ BY DOER OFFSET LAMINATES I/IAG I/N BALSA I/NM PLYWOOD CURE RI I/IA Al/B BALGA I/ B 5/5 BALSA UBLDITh\ V BLACK DATLIN K SS RNGERS SR DIG ELYATOR PUGRROOAXURNSMUSIC WIRE 1/4 DIA MUSIC WIRE4 1/5 PLYWOOD I- I/OPLYWGSD II REGO TAI SKID SUPPORT SISSASB III T7/2YIBRATON DAMPENERRR9NG WRE PTT ASS I/IA SIAI/lB WA BRASS TAKE BRAGS RODCRW N DINLE 7DB PR I/SDOIA MUSIC ARE RIGGING WIGESSLBTSDIN MISIC /ABLE /G DR IRE RIGGING MAGIC WIRE PlN- I/SD GIA9 SI/BDIA WILLIAMS BROSMAGIC AWE ""NUTOUT TRREA1~~ GOLDEN ARE WHEELS MO GDREAM 010 GUT BRAGG BRACKETSLIP ONTO ASLE RSOLDERI DOUBLE AROUND DRILL ROD SWEAT SOLDER FREE ENDS DRILL SOT & BEND AS SASAG ASSEMBLE N SOLGER SN ABLE AG GROWN NOT TO SCALE AVIATION I BOULE 51 -0 WINGSPAN /U SESIDWED B DRAWN BY PRANK BEUTTY WACO PLAN ST PRUNA BEATTY 1O-ISRB ALL RISITS SYCETIBRAS cii 0 0 D 0 - L4- II TJjUIJ II BRASS TUBING PITOT TUBE DETAILS SLACK 37"SK-ZYPITOT TARE NR-ZT IROD ILYIK BALSAGOLD WITHBLACK 37 ING WIRE LOCATORS _________________LEADING EGGEBLACK OOTLWESGOD-IN SPARD WITH SASSAUSO 70 OUNCE LEAD ANGLE RIG sj7 LE RiB 3voosr RALSA PRONTSPAR IWW B BASSWOOD REAR SPAR II -EflQO_SPAR 1/B BUOSIROOD 0 REUD - - COWLNG PATTERG 1732 PLYWOOD FRONTREAR SLOTS INTERLOCIG WITH MATING SLOTS IN BOLAIIEAT ROTH COWLINSO B PL WOOD 00 RA NO EDGESOWEA ERA EMSS AGOG SE0 C AWA ERAN AS SE M B ~1II1 B OS j1~114YjL7GSOAAREB WAC BASSWOOO SPAR AR SPARI AGEDD7 175 PLTWOOO -O REDO 3\RALSA PAIRING COWLING PATTERN 70 PTWGDSI FRONTREARPLANK SIUOATEDI/B BALSA GRASS LATOP N BOTTOM II HDRARIRS PLYWOOD COKE DARK GREENTRIM ERCESS MATERIAL AFTER_________ ASSEMBLY BOTR COWLINGS BUILD UP EPOG AROUNDRODART BELLORANK MOONTCU OGGAREI/IA DIA GRASS TUBE BIASING WIRE LOCATOR UP-RIGHT BELLEBANK BALSA PAIRB4G 3 DIHEDRALI1~ZDCI ING WIRE CONNECTION DETAIL CAL AIBRATION DAMPENER AIR C 0-I/B BRASS ROD 3RE PLYWOOD DISKALLRIISI/reA&SAE I1I11 0I23BSK EE BRACKET DETAL ILifEP 2-1i3f~i PRESS I/IN DIG BRASSPAGS I/GO DIG WIRE THRASLIP 5/32 BRASS TRAINS THEN COGERPHINT NWIRED- ALLOW 3/B OVERLAP TUBING INTO DRiLLEDTONING BEND WIRE ENDODYER WIRES SWEAT SOLDER BOLE N COG -PARALELL WITH RIGGING POLISH MODEL TO SCALESESIGNED N ORAWN RY FRANK W BEATTY NOTE RIGGING WIRES ARE CONSIDERED TO SE FUNCTIONAL MODEL DHOILO NOT BE FLOWN WITHOUT TREM ~ARIAT ION PETE INKED PLAN ST FRANG REATTT BR-SB ALL RIOGTS SHEET RESERVES 2 OP 0 0 C 0 CD 0 0 0 cii mounting block bracket firewall bulkhead 4A Access remote glow plug through scale hole bottom cowling Attach wine fuselage Tabs bulkhead separation lines should mate receptacles wing center section bulkheads should automatically align wing axes double-check alignments before epoxying wing llace Cement dowel-pin fin stabilizer mount assembly fuselage Install elevator pushrods throttle linkages check fieedom movement Fit Vs x /4 sheet balsa fairings way around wing root fuselage remainder stringers can added Fit shape cement fairing blocks fin-to-stabilizer joint Sand entire fuselage well cover using Stix-It Koverall two coats Sig Dope Install fairings undercarriage axle struts prefer use basswood such fairings because resists compression fatigue-type distortions model has hard landing Cover struts /2-ounce fiberglass Finish At point model assembled engine wheels hardware items installed weighed approximately 51 ounces hung nose-down about 50 suspended its desienated Center Gravity CC location reasonable assume completed model would weigh mid 60s require little no ballast balance properly seemed going well fatal error made time scrapped 40-year-old hobby type compressor bought new /2-horsepower compressor same time switched brands dope new sealers dopes thinned applied manner accustomed realized new paints thicker required great deal thinner fewer coats would required little old compressor would have bilked new compressor dutifully laid heavy stuff Suddenly aware now very heavy model gone decidedly tailheavy Several courses action including stripping paint off contemplated summer contest season dreadfully near decided go ahead finish model finishing process model should include number coats sanding sealer followed coats white dope wet-or-dry sanding after coat satisfied white can dress up model decorative markings Mask off racing registration numbers wings fuselage sides spray black Cover up 37s wings fuselage Mask around registration numbers wing top bottom surfaces /s tape Spray remaining enclosed areas gold Prepare pane glass coating very soapy water dry pane sprayed gold Pete NR-2Y lettering rudder cut out lifted glass applied model using thinner bonding agent protected clear dope overspray See description technique Hot Canary article March 1996 Model Aviation Talcum powder rubbed lightly over gold Pete NR-27 lettering use black Top-Elite Panel-Line Pen draw black pinstriping around lettering Protect clear dope overspray little previous success sort ink applications doped surfaces procedure made almost like writing note paper after talcum applied little trick am indebted information gleaned Windy Urtnowskis videotapes Various panel lines applied using talcum panel-line pen technique Simulated rivets screw heads applied Pilot Silver Marker Protect clear dope overspray Finally several coats Sig clear dope sprayed over entire model whole hand-rubbed compound polished Final Assembly Study drawings carefully install rigging wires INTRODUCING NW LINE PRECISION PROP NUTS AND HUBS Now greater choice quality Tru-Turn products 3 sizes PROP NUTS ranging 5/8 7/8 diameter 2 shapes available stock R/O engine thread sizes 5 sizes PROP HUBS ranging 1to 2 diameter 2 shapes new PROP NUTS PROP HUBS addition existing line precision aluminum spinners range 1-1/2 6 over 90 shapes sizes blade configurations new Tru-Turn PROP HUB line complimented extensive line over 70 adapter kits Tru-Turn makes adapter production R/O engine market have adapter problem. help phone call away. See hobby dealer call us direct. Made USA PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY ATILITY T LOOKS TY PO Box 836 South Houston Texas 77587 713 / 943-1867 Visit us internet ru-turnnet ws 52 Model Aviation s tail Details brackets axles sweated tubing fittings rigging wire junction should selfexplanatory fear axle bracket fittings would fail first landing Instead four original-design fittings top wing failed first flight system replaced sweat tubing hardware shown rigging setup holding up nicely rigging considered functional model should flown cockpit doors formed 010 sheet brass doors attached miniature pins hinge line drawn panel line pin protected clear dope Finish model adding remaining details such vibration dampeners exhaust stacks dummy carburetor manifold Contest rules require us install dummy pilot visible flight Mine painted using advice gleaned Don Typonds fabulous videotape Paint Pilot Figuresit looks great videotape should serious Scale builders library true-scale carved propeller adds wonders models appearance prop made four /32 basswood laminations Carve stain paint varnish bolt model will pleased results Flying There no question excess weight bad avoided lately have come around thinking also down side lightly loaded models thing get bounced around wind especially true doing taxi operations Such operations upwind side circle coming wind can troublesome have come realize heavier models enjoy some advantages Truly overweight models can flown successfully balanced properly have ample power Such models very unforgiving pilot errors however pilot errors no-no built originally intended ready-to-fly weight 60-65 ounces Pete will dream machine aspects flying ground-handling operations So fly 90-ounce Pete sure model balanced properly nose should bang down approximately five degrees suspended CG location Fly model shorter-than-normal linessay 52 feet long OS 32 provides ample power Pete flies quite fast smooth Takeoffs level flight routine matters High flight operations especially attempted significant amount wind will definitely put model risk 54 Model Aviation 4 stalling out disastrous consequences Power-on landings accomplished maintaining sufficient power speed fly airplane way ground Gradually reduce power altitude until model has touched down rolling its main gear reduce power bit use bit elevator set tail ground trick maintain enough speed avoid stalling model landing approach yet going slowly enough avoid ballooning back air upwind side landing approach taxi run am telling Pete going weigh 65 ouncesis During learning process flying overweight clipped-wing racer some really hard landings made model cartwheeled once Midwest contest its wheels dug circles soft dirt surfaces Much surprise no compression fatigue stress cracks have shown up part models surface So listen up Build light fly right k Beatty 2608 Pontoon Rd Granite City IL 62040 Custom Built R/CAirCr aft Engines Single Twin cylinder Gas Engines Sini948 Fox Manufactuf any has building worlds finest model airplane motors carry filltliie accessories model airplane engines including Fox 24 32 42 58 Fox new engines coming soon Call today free catalog look us up internet wwwfoxmanufacturingcom 501 646-1656 Fax 501 646-1757 5305 Towson Avenue Fort Smith AR 72901 e-mail foxmotors@aolcom /CO tRI Olt1ffA4aUchi Association RnR Products Presents Wayne Handleys new Oracle TURBO RAVEN 1/5 Scale Options 1 High performance 2 mu vinyl graphics masking Set includes Raven masking gold border fuse wing wheel pants Oracle graphics wing stab fuse Price $65 Option 2 Factory applied graphics DuPont Chroma paint Graphics t Gene Barton Spinner Just looking Turbo Raven screams - EXTREME Two months after its debut Stockton CA Airshow 11/98 Wayne new Turbo Raven set new time-toclimb world record sea level 3000 meters 9843 feet less minute 10 seconds Turbo Ravens sexy sleek lines generous proportions ie large fin/rudder area gigantic strip ailerons allowed us design fully molded great flying model deviating originals outline no STAND-OFF-SCALE 4- Light weight hollow-core wing technology utilizing epoxy glass & carbon fiber skin hinging both wing stabilizer 4- Removable wing stab already mounted 4- Carbon fiber gear strut its mount hardware place 4 Durable gel-coat surfacing red/white no shrink film used zontally split engine cowl realism service ability removing prop spinner 4 Control surface horns attached Introductory Price ping Handling 56 Model Aviation ff best model aitplane parts First Line Signature Series AIatIo 935 Tamarack Avenue San Jose CA 95128 Phone 408248-4642 Fax 408248-4642 Email slpstream@earthlinknet Website wwwslipstream-aviationcom
Edition: Model Aviation - 1999/10
Page Numbers: 46, 47, 48, 49, 50, 51, 52, 54, 56
Ho Benny CL Howards 1930s racer Scale competition 46 Model Aviation ank Beatty Pete rest Note hand-carved scale prop screw eye used check CG Tips gleaned Don Typonds Paint Pilot Figures tape Dummy manifold largest cutout helps hide otherwise Robins View Productions added realistic detail unsightly hole Stacks protrude slightly above openings Fullscale aircraft engineers faced challenging design performance requirements often can resolved compromise tradeoff same holds true model designers will make big difference model will designed built instance weekend sport model all-out competition machine Pete intended competition machine would participate future Nationals order enhance its true scale appearance control system leadout wires should enclosed wing recognized sharply curved fillet wing-to-fuselage joint would complicate locating bellcrank Space limitations clearances dictated use 2 /-inch short-span bellerank though might induce somewhat sensitive foreand-aft pitch-axis flight qualities As design work progressed noted bellcrank mounting plate must also serve rear undercarriage strutmounting plate raised concerns hard landing might buckle plate render control system inoperable fear has proved groundless Finally seemed wing center section should built separate unit order facilitate bellcrank rear undercarriage strut installations An alternate approach weekend sport model would locate 3- 3/2-inch long-span bellcrank top engine mounts between bulkheads 6 9 fuselage wing center section could built unit fears about undercarriage strut location would also eliminated course revised cutouts rerouting throttle elevator pushrod linkages would required Tradeoffs anyone CONSTRUCTION Though Pete especially difficult model build construction sequence important tail surfaces wing center section wing outer panels built first construction will delayed parts needed Stabilizer Elevators Thin scalelike strong fabric-covered tail surface structures can achieved building around internal /64 plywood core Cut /&i plywood cores stabilizer elevators Cement spars balsa ribs cores Soak four /j X a strips ammonia bind around structures outlines dry strips can cemented structures Install elevator horn Robart hinges Build up epoxy around hardware items plywood cutouts joints quite strong will need no other reinforcement Drill stabilizer spar use cyanoacrylate CyA glue attach /16 brass tubing holes rigging wire locators October 1999 47 Ready fuselage covering Author prefers realism sturdiness small basswood stringers sag after covering finish have applied Cover surfaces using Sig Stix-it Sig Koverall Sig clear dope set aside Fin/Rudder built same manner stabilizer elevators Fitting shaping rudder cone fairings must wait until can faired rear fuselage Wing Center Section Make up bellcrank mounting plate Bolt bellerank plate check freedom movement remove bellcrank plate center section will built upside down building board Pin /s X /2 x 7 wood strip board guide will help align center section bulkheads Fit bulkheads 6A 7A 8 onto bellcrank mounting plate Epoxy parts together before set up quickly pin parts building board using wood strip bulkhead cutouts ensure alignment Epoxy plywood ribs H bulkheads 5 9A assembly Plank exposed curved wing root fillets l/ balsa strips dry lift assembly board plank fillets top surface /s balsa strips CyA ywood rectangles bulkheads 6A 9A form boxlike receptacles will mate tabs bulkheads 6 9 wing assembled fuselage system will square wing fuselage set dihedral angle set incidence angle accurately rear landing gear struts will bound bellcrank mounting plate later key structural element Wing Outer Panels Cut out ribs false ribs spars leading trailing edges Block up pin aileron spar leading trailing edges building board Slip ribs slots Thread /s basswood spars through ribs Fit false ribs position CyA joints Lift assemblies board Fit 3/4 balsa tips wings Fit sheet balsa fillers mounting aileron horn details Box spars rigging wire locations basswood blocks Add wing tip weight Shape sand wing panels final shape Test-fit center section outer panels Mark matching cutouts port wing root H ribs remove material required leadout wire passageway Use extension drill bit pierce holes ribs leadout wires port outer wing panel Install tubing leadout wire guides wingtip Cut ailerons separate wing panels Drill spars CyA As diameter brass tubing holes rigging wire locators Set assemblies aside now Fuselage Obtain piece 3/-i diameter Reynolds aluminum tubing 26 inches long Make up plug assembly see drawing detail CyA end tubing plug end will slip cutout bulkhead 13 narrow tail end fuselage Carefully align CyA /s x s basswood strip onto bottom side tubing will keep bulkheads rotating out alignment being threaded onto tube Carefully mark bulkhead locations tube assembly will key tool used building straight round stringered fuselage am indebted Robert Underwoods article describing technique Model Airplane News March 1996 Cut out bulkheads Make up bind forward landing gear strut axle assembly bulkhead 4A Thread bulkheads onto tubing Carefully align bulkheads CyA top three stringers side place Before proceeding use wing center section make sure tabs fuselage formers mate corresponding cutouts wing center section bulkheads Epoxy engine mounts gussets / dowel locking pegs fuel tank 11/4 diameter plastic golf tube tailskid assembly position Use plastic golf tube allows us avoid making nonscale openings cowling providing passage through fuselage cooling air can exit out cockpit opening 48 Model Aviation center section Brodak three-wire belicrank temporarily installed photo purposes Starboard wing panel test-fitted center section Three panels joined fairing blocks installed bellcrank leadout wires place Note wing root curve Upper cowl 1/32 plywood Lower section /32 basswood planked over plywood bulkheadslighter balsa Photos author Graphic Design Jill Ann Cavanaugh Install remaining stringers above fuselage centerline Study plans drill temporarily fit two A6 diameter brass tubing rigging wire locators position between bulkheads 6 7 Cut out 1/32 plywood cowling soak ammonia snap tape position top fuselage dry mark drill holes rigging wire locators CyA cowling tubing place Make up head rest fairing block cement fuselage Add /8 balsa filler strips base cowling headrest Bolt engine engine mounts Make up install tntermediate throttle crank Temporarily tape wing center section fuselage order bend up fit I64 diameter music wire rear landing gear strut correct shape mate main gear axle Make up linkage throttle crank Set center section rear landing gear strut throttle linkage aside now Cowling Three plywood formers four plywood stringers assembled trued Cover upper structure A2 plywood cowling similar procedure used fuselage Plank lower cowling /32 x wood strips nose block three layers wood hollowed shown drawings Cowlings made hardwoods just smidgen difficult build just little heavier built balsa However hardwoods take paints beautifully ding resistance high openings can have thin crisp scalelike edges hold up use cowling break models firewall slides forward removal aligned held position four /s dowel guide pins firewall two blind mounting bolts hidden behind spinner Cover cowling /.ounce fiberglass set aside Wing Assembly wing will assembled upside down building board Use one-inch-thick block wood raise center section above building board surface Slip outer wing panels onto center section block tips up approximately t/ inch Epoxy joints dty lift assembly board Fit carve balsa leading trailing edge center section root fairing blocks shape Leave long enough extend fuselage past planking line fuselage planking can trimmed butt against root fillets Bind epoxy rear undercarriage struts mounting plate Thread leadout wires through wing bolt bellcrank throttle linkage mounting plate Bend up leadout loop ends now cover sharp ends tape prevent injuries Give entire wing assembly good final sanding Use Sig Stix Sig Koverall cover wing Brush two coats clear dope set assembly aside Assembly An unsightly nonscale cowling opening glow plug access avoided using remote glow plug connector Install its October 1999 49 Front view shows stringer notches cooling air duct opening Four /a dowel pins used align cowl Aluminum tubing guide passes through holes bulkheads ensures fuselage will alignment Bulkheads engine mount main landing gear struts some stringers have installed Note cooling air duct HOWARD PETE Type CL Scale Wingspan 4O/4 inches Engine 05 32 Flying weight 65 ounces approx Construction Built-up Covering/finish Sig Koverall Sig dope Tail surfaces have 1/ea plywood cores balsa ribs Strong light realistic fabric-covered structures 1-1/4 OIA COOLINGI/IS DIA GRASS TUBING AIR OUTLETRIGGING WIRE GUIDE IKMART PLASTIC GOLF CLUB TUBE 7IS ALL STRINGERS IA U B BASGWOOO I/B SOT S AL S I/B PlYWOOD rR PLYWOOD SEPARATIONSEPARATION LINE CUT AWAT AFTERTA8 ASSEMBLY TO CLEAR 2 ~1ET1ZT2II2 CARBURETOR DETAILS SIMMY ERRALIOTGA -iIE7STUCK N ROUST I/SO PLYWOOD SPLIT BIROR REMOVE ASTYPICAL SLOT DETAIL IN POURERS BEGS AFTERDAYRRI 7 TO INTERLOCK RITA SLOTG IN I/3D PLYWOOD COWLINSO COWLING GOLD I/B PLYIROOS LOCATIONS 5 DII I/A RAGSWOOS PLAGUING RECESS HUGO I SCALE PROP READ BOLTII ASOS IRESS COWLING STRINGERS I/B PLYWUOD COLOR SCHEME AIRCRAFT ALL AEGIS WRITE LETTERING & DETAILS AG NOTES Ii CENTER OPTRRGTTLE ONANR SNAWITY 031 BRAGS 0 READLOCR 001 K 1-I/SD PLYWOOb T XlCOOLING I MOTE BLOWIlAIR DUCT / PLUI CONNECTOR__Il ENGINE --- FASTA DI/UOIA SPINNER 0 B ASSOCIATESEBTENSION NO SOUlGRAFT RG-SCALE PROVIDES ACCESS TO REMOTE GLOW PLUG BASSWOOD PA RNBG~ MUDO WRE SAG C W ~12 BBA WE LANSING SEAR SETAIL NOT TO SCALE S-i/S 02 TANK RU--N ~-/e1/PJ~ P BP WOOB A~I-CGAAL GWOOD EDJlBEWALL BSR BA GAiSUBD A4z{jBASSROL ~2JjB BA GA - SE'- SE ABA OS NERO ______________REMOTE GDA PLUS K DON T INS ULOCY BUSYWOSA I_______________________I--- STRINGERS ORATTES CLARITY II/BB 3/1K BASSWOOD CoR TO 5/4 ALUMINUM TUBING BOTTOM SIDE DROWN FOR CLARITY -S/IA BASGWUOD PLSO IS GNAW PIT CRA IN TABNS OK FUSELAGE FORMER ALIGNMENT GUIDE SELLORANK B UNDER CARRIAGE B RAT MOAN SB PL WOOSREND DOORS I/4G S/B _________ BASGWOBO~5~ A/4~WELL. \ BY DOER OFFSET LAMINATES I/IAG I/N BALSA I/NM PLYWOOD CURE RI I/IA Al/B BALGA I/ B 5/5 BALSA UBLDITh\ V BLACK DATLIN K SS RNGERS SR DIG ELYATOR PUGRROOAXURNSMUSIC WIRE 1/4 DIA MUSIC WIRE4 1/5 PLYWOOD I- I/OPLYWGSD II REGO TAI SKID SUPPORT SISSASB III T7/2YIBRATON DAMPENERRR9NG WRE PTT ASS I/IA SIAI/lB WA BRASS TAKE BRAGS RODCRW N DINLE 7DB PR I/SDOIA MUSIC ARE RIGGING WIGESSLBTSDIN MISIC /ABLE /G DR IRE RIGGING MAGIC WIRE PlN- I/SD GIA9 SI/BDIA WILLIAMS BROSMAGIC AWE ""NUTOUT TRREA1~~ GOLDEN ARE WHEELS MO GDREAM 010 GUT BRAGG BRACKETSLIP ONTO ASLE RSOLDERI DOUBLE AROUND DRILL ROD SWEAT SOLDER FREE ENDS DRILL SOT & BEND AS SASAG ASSEMBLE N SOLGER SN ABLE AG GROWN NOT TO SCALE AVIATION I BOULE 51 -0 WINGSPAN /U SESIDWED B DRAWN BY PRANK BEUTTY WACO PLAN ST PRUNA BEATTY 1O-ISRB ALL RISITS SYCETIBRAS cii 0 0 D 0 - L4- II TJjUIJ II BRASS TUBING PITOT TUBE DETAILS SLACK 37"SK-ZYPITOT TARE NR-ZT IROD ILYIK BALSAGOLD WITHBLACK 37 ING WIRE LOCATORS _________________LEADING EGGEBLACK OOTLWESGOD-IN SPARD WITH SASSAUSO 70 OUNCE LEAD ANGLE RIG sj7 LE RiB 3voosr RALSA PRONTSPAR IWW B BASSWOOD REAR SPAR II -EflQO_SPAR 1/B BUOSIROOD 0 REUD - - COWLNG PATTERG 1732 PLYWOOD FRONTREAR SLOTS INTERLOCIG WITH MATING SLOTS IN BOLAIIEAT ROTH COWLINSO B PL WOOD 00 RA NO EDGESOWEA ERA EMSS AGOG SE0 C AWA ERAN AS SE M B ~1II1 B OS j1~114YjL7GSOAAREB WAC BASSWOOO SPAR AR SPARI AGEDD7 175 PLTWOOO -O REDO 3\RALSA PAIRING COWLING PATTERN 70 PTWGDSI FRONTREARPLANK SIUOATEDI/B BALSA GRASS LATOP N BOTTOM II HDRARIRS PLYWOOD COKE DARK GREENTRIM ERCESS MATERIAL AFTER_________ ASSEMBLY BOTR COWLINGS BUILD UP EPOG AROUNDRODART BELLORANK MOONTCU OGGAREI/IA DIA GRASS TUBE BIASING WIRE LOCATOR UP-RIGHT BELLEBANK BALSA PAIRB4G 3 DIHEDRALI1~ZDCI ING WIRE CONNECTION DETAIL CAL AIBRATION DAMPENER AIR C 0-I/B BRASS ROD 3RE PLYWOOD DISKALLRIISI/reA&SAE I1I11 0I23BSK EE BRACKET DETAL ILifEP 2-1i3f~i PRESS I/IN DIG BRASSPAGS I/GO DIG WIRE THRASLIP 5/32 BRASS TRAINS THEN COGERPHINT NWIRED- ALLOW 3/B OVERLAP TUBING INTO DRiLLEDTONING BEND WIRE ENDODYER WIRES SWEAT SOLDER BOLE N COG -PARALELL WITH RIGGING POLISH MODEL TO SCALESESIGNED N ORAWN RY FRANK W BEATTY NOTE RIGGING WIRES ARE CONSIDERED TO SE FUNCTIONAL MODEL DHOILO NOT BE FLOWN WITHOUT TREM ~ARIAT ION PETE INKED PLAN ST FRANG REATTT BR-SB ALL RIOGTS SHEET RESERVES 2 OP 0 0 C 0 CD 0 0 0 cii mounting block bracket firewall bulkhead 4A Access remote glow plug through scale hole bottom cowling Attach wine fuselage Tabs bulkhead separation lines should mate receptacles wing center section bulkheads should automatically align wing axes double-check alignments before epoxying wing llace Cement dowel-pin fin stabilizer mount assembly fuselage Install elevator pushrods throttle linkages check fieedom movement Fit Vs x /4 sheet balsa fairings way around wing root fuselage remainder stringers can added Fit shape cement fairing blocks fin-to-stabilizer joint Sand entire fuselage well cover using Stix-It Koverall two coats Sig Dope Install fairings undercarriage axle struts prefer use basswood such fairings because resists compression fatigue-type distortions model has hard landing Cover struts /2-ounce fiberglass Finish At point model assembled engine wheels hardware items installed weighed approximately 51 ounces hung nose-down about 50 suspended its desienated Center Gravity CC location reasonable assume completed model would weigh mid 60s require little no ballast balance properly seemed going well fatal error made time scrapped 40-year-old hobby type compressor bought new /2-horsepower compressor same time switched brands dope new sealers dopes thinned applied manner accustomed realized new paints thicker required great deal thinner fewer coats would required little old compressor would have bilked new compressor dutifully laid heavy stuff Suddenly aware now very heavy model gone decidedly tailheavy Several courses action including stripping paint off contemplated summer contest season dreadfully near decided go ahead finish model finishing process model should include number coats sanding sealer followed coats white dope wet-or-dry sanding after coat satisfied white can dress up model decorative markings Mask off racing registration numbers wings fuselage sides spray black Cover up 37s wings fuselage Mask around registration numbers wing top bottom surfaces /s tape Spray remaining enclosed areas gold Prepare pane glass coating very soapy water dry pane sprayed gold Pete NR-2Y lettering rudder cut out lifted glass applied model using thinner bonding agent protected clear dope overspray See description technique Hot Canary article March 1996 Model Aviation Talcum powder rubbed lightly over gold Pete NR-27 lettering use black Top-Elite Panel-Line Pen draw black pinstriping around lettering Protect clear dope overspray little previous success sort ink applications doped surfaces procedure made almost like writing note paper after talcum applied little trick am indebted information gleaned Windy Urtnowskis videotapes Various panel lines applied using talcum panel-line pen technique Simulated rivets screw heads applied Pilot Silver Marker Protect clear dope overspray Finally several coats Sig clear dope sprayed over entire model whole hand-rubbed compound polished Final Assembly Study drawings carefully install rigging wires INTRODUCING NW LINE PRECISION PROP NUTS AND HUBS Now greater choice quality Tru-Turn products 3 sizes PROP NUTS ranging 5/8 7/8 diameter 2 shapes available stock R/O engine thread sizes 5 sizes PROP HUBS ranging 1to 2 diameter 2 shapes new PROP NUTS PROP HUBS addition existing line precision aluminum spinners range 1-1/2 6 over 90 shapes sizes blade configurations new Tru-Turn PROP HUB line complimented extensive line over 70 adapter kits Tru-Turn makes adapter production R/O engine market have adapter problem. help phone call away. See hobby dealer call us direct. Made USA PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY ATILITY T LOOKS TY PO Box 836 South Houston Texas 77587 713 / 943-1867 Visit us internet ru-turnnet ws 52 Model Aviation s tail Details brackets axles sweated tubing fittings rigging wire junction should selfexplanatory fear axle bracket fittings would fail first landing Instead four original-design fittings top wing failed first flight system replaced sweat tubing hardware shown rigging setup holding up nicely rigging considered functional model should flown cockpit doors formed 010 sheet brass doors attached miniature pins hinge line drawn panel line pin protected clear dope Finish model adding remaining details such vibration dampeners exhaust stacks dummy carburetor manifold Contest rules require us install dummy pilot visible flight Mine painted using advice gleaned Don Typonds fabulous videotape Paint Pilot Figuresit looks great videotape should serious Scale builders library true-scale carved propeller adds wonders models appearance prop made four /32 basswood laminations Carve stain paint varnish bolt model will pleased results Flying There no question excess weight bad avoided lately have come around thinking also down side lightly loaded models thing get bounced around wind especially true doing taxi operations Such operations upwind side circle coming wind can troublesome have come realize heavier models enjoy some advantages Truly overweight models can flown successfully balanced properly have ample power Such models very unforgiving pilot errors however pilot errors no-no built originally intended ready-to-fly weight 60-65 ounces Pete will dream machine aspects flying ground-handling operations So fly 90-ounce Pete sure model balanced properly nose should bang down approximately five degrees suspended CG location Fly model shorter-than-normal linessay 52 feet long OS 32 provides ample power Pete flies quite fast smooth Takeoffs level flight routine matters High flight operations especially attempted significant amount wind will definitely put model risk 54 Model Aviation 4 stalling out disastrous consequences Power-on landings accomplished maintaining sufficient power speed fly airplane way ground Gradually reduce power altitude until model has touched down rolling its main gear reduce power bit use bit elevator set tail ground trick maintain enough speed avoid stalling model landing approach yet going slowly enough avoid ballooning back air upwind side landing approach taxi run am telling Pete going weigh 65 ouncesis During learning process flying overweight clipped-wing racer some really hard landings made model cartwheeled once Midwest contest its wheels dug circles soft dirt surfaces Much surprise no compression fatigue stress cracks have shown up part models surface So listen up Build light fly right k Beatty 2608 Pontoon Rd Granite City IL 62040 Custom Built R/CAirCr aft Engines Single Twin cylinder Gas Engines Sini948 Fox Manufactuf any has building worlds finest model airplane motors carry filltliie accessories model airplane engines including Fox 24 32 42 58 Fox new engines coming soon Call today free catalog look us up internet wwwfoxmanufacturingcom 501 646-1656 Fax 501 646-1757 5305 Towson Avenue Fort Smith AR 72901 e-mail foxmotors@aolcom /CO tRI Olt1ffA4aUchi Association RnR Products Presents Wayne Handleys new Oracle TURBO RAVEN 1/5 Scale Options 1 High performance 2 mu vinyl graphics masking Set includes Raven masking gold border fuse wing wheel pants Oracle graphics wing stab fuse Price $65 Option 2 Factory applied graphics DuPont Chroma paint Graphics t Gene Barton Spinner Just looking Turbo Raven screams - EXTREME Two months after its debut Stockton CA Airshow 11/98 Wayne new Turbo Raven set new time-toclimb world record sea level 3000 meters 9843 feet less minute 10 seconds Turbo Ravens sexy sleek lines generous proportions ie large fin/rudder area gigantic strip ailerons allowed us design fully molded great flying model deviating originals outline no STAND-OFF-SCALE 4- Light weight hollow-core wing technology utilizing epoxy glass & carbon fiber skin hinging both wing stabilizer 4- Removable wing stab already mounted 4- Carbon fiber gear strut its mount hardware place 4 Durable gel-coat surfacing red/white no shrink film used zontally split engine cowl realism service ability removing prop spinner 4 Control surface horns attached Introductory Price ping Handling 56 Model Aviation ff best model aitplane parts First Line Signature Series AIatIo 935 Tamarack Avenue San Jose CA 95128 Phone 408248-4642 Fax 408248-4642 Email slpstream@earthlinknet Website wwwslipstream-aviationcom
Edition: Model Aviation - 1999/10
Page Numbers: 46, 47, 48, 49, 50, 51, 52, 54, 56
Ho Benny CL Howards 1930s racer Scale competition 46 Model Aviation ank Beatty Pete rest Note hand-carved scale prop screw eye used check CG Tips gleaned Don Typonds Paint Pilot Figures tape Dummy manifold largest cutout helps hide otherwise Robins View Productions added realistic detail unsightly hole Stacks protrude slightly above openings Fullscale aircraft engineers faced challenging design performance requirements often can resolved compromise tradeoff same holds true model designers will make big difference model will designed built instance weekend sport model all-out competition machine Pete intended competition machine would participate future Nationals order enhance its true scale appearance control system leadout wires should enclosed wing recognized sharply curved fillet wing-to-fuselage joint would complicate locating bellcrank Space limitations clearances dictated use 2 /-inch short-span bellerank though might induce somewhat sensitive foreand-aft pitch-axis flight qualities As design work progressed noted bellcrank mounting plate must also serve rear undercarriage strutmounting plate raised concerns hard landing might buckle plate render control system inoperable fear has proved groundless Finally seemed wing center section should built separate unit order facilitate bellcrank rear undercarriage strut installations An alternate approach weekend sport model would locate 3- 3/2-inch long-span bellcrank top engine mounts between bulkheads 6 9 fuselage wing center section could built unit fears about undercarriage strut location would also eliminated course revised cutouts rerouting throttle elevator pushrod linkages would required Tradeoffs anyone CONSTRUCTION Though Pete especially difficult model build construction sequence important tail surfaces wing center section wing outer panels built first construction will delayed parts needed Stabilizer Elevators Thin scalelike strong fabric-covered tail surface structures can achieved building around internal /64 plywood core Cut /&i plywood cores stabilizer elevators Cement spars balsa ribs cores Soak four /j X a strips ammonia bind around structures outlines dry strips can cemented structures Install elevator horn Robart hinges Build up epoxy around hardware items plywood cutouts joints quite strong will need no other reinforcement Drill stabilizer spar use cyanoacrylate CyA glue attach /16 brass tubing holes rigging wire locators October 1999 47 Ready fuselage covering Author prefers realism sturdiness small basswood stringers sag after covering finish have applied Cover surfaces using Sig Stix-it Sig Koverall Sig clear dope set aside Fin/Rudder built same manner stabilizer elevators Fitting shaping rudder cone fairings must wait until can faired rear fuselage Wing Center Section Make up bellcrank mounting plate Bolt bellerank plate check freedom movement remove bellcrank plate center section will built upside down building board Pin /s X /2 x 7 wood strip board guide will help align center section bulkheads Fit bulkheads 6A 7A 8 onto bellcrank mounting plate Epoxy parts together before set up quickly pin parts building board using wood strip bulkhead cutouts ensure alignment Epoxy plywood ribs H bulkheads 5 9A assembly Plank exposed curved wing root fillets l/ balsa strips dry lift assembly board plank fillets top surface /s balsa strips CyA ywood rectangles bulkheads 6A 9A form boxlike receptacles will mate tabs bulkheads 6 9 wing assembled fuselage system will square wing fuselage set dihedral angle set incidence angle accurately rear landing gear struts will bound bellcrank mounting plate later key structural element Wing Outer Panels Cut out ribs false ribs spars leading trailing edges Block up pin aileron spar leading trailing edges building board Slip ribs slots Thread /s basswood spars through ribs Fit false ribs position CyA joints Lift assemblies board Fit 3/4 balsa tips wings Fit sheet balsa fillers mounting aileron horn details Box spars rigging wire locations basswood blocks Add wing tip weight Shape sand wing panels final shape Test-fit center section outer panels Mark matching cutouts port wing root H ribs remove material required leadout wire passageway Use extension drill bit pierce holes ribs leadout wires port outer wing panel Install tubing leadout wire guides wingtip Cut ailerons separate wing panels Drill spars CyA As diameter brass tubing holes rigging wire locators Set assemblies aside now Fuselage Obtain piece 3/-i diameter Reynolds aluminum tubing 26 inches long Make up plug assembly see drawing detail CyA end tubing plug end will slip cutout bulkhead 13 narrow tail end fuselage Carefully align CyA /s x s basswood strip onto bottom side tubing will keep bulkheads rotating out alignment being threaded onto tube Carefully mark bulkhead locations tube assembly will key tool used building straight round stringered fuselage am indebted Robert Underwoods article describing technique Model Airplane News March 1996 Cut out bulkheads Make up bind forward landing gear strut axle assembly bulkhead 4A Thread bulkheads onto tubing Carefully align bulkheads CyA top three stringers side place Before proceeding use wing center section make sure tabs fuselage formers mate corresponding cutouts wing center section bulkheads Epoxy engine mounts gussets / dowel locking pegs fuel tank 11/4 diameter plastic golf tube tailskid assembly position Use plastic golf tube allows us avoid making nonscale openings cowling providing passage through fuselage cooling air can exit out cockpit opening 48 Model Aviation center section Brodak three-wire belicrank temporarily installed photo purposes Starboard wing panel test-fitted center section Three panels joined fairing blocks installed bellcrank leadout wires place Note wing root curve Upper cowl 1/32 plywood Lower section /32 basswood planked over plywood bulkheadslighter balsa Photos author Graphic Design Jill Ann Cavanaugh Install remaining stringers above fuselage centerline Study plans drill temporarily fit two A6 diameter brass tubing rigging wire locators position between bulkheads 6 7 Cut out 1/32 plywood cowling soak ammonia snap tape position top fuselage dry mark drill holes rigging wire locators CyA cowling tubing place Make up head rest fairing block cement fuselage Add /8 balsa filler strips base cowling headrest Bolt engine engine mounts Make up install tntermediate throttle crank Temporarily tape wing center section fuselage order bend up fit I64 diameter music wire rear landing gear strut correct shape mate main gear axle Make up linkage throttle crank Set center section rear landing gear strut throttle linkage aside now Cowling Three plywood formers four plywood stringers assembled trued Cover upper structure A2 plywood cowling similar procedure used fuselage Plank lower cowling /32 x wood strips nose block three layers wood hollowed shown drawings Cowlings made hardwoods just smidgen difficult build just little heavier built balsa However hardwoods take paints beautifully ding resistance high openings can have thin crisp scalelike edges hold up use cowling break models firewall slides forward removal aligned held position four /s dowel guide pins firewall two blind mounting bolts hidden behind spinner Cover cowling /.ounce fiberglass set aside Wing Assembly wing will assembled upside down building board Use one-inch-thick block wood raise center section above building board surface Slip outer wing panels onto center section block tips up approximately t/ inch Epoxy joints dty lift assembly board Fit carve balsa leading trailing edge center section root fairing blocks shape Leave long enough extend fuselage past planking line fuselage planking can trimmed butt against root fillets Bind epoxy rear undercarriage struts mounting plate Thread leadout wires through wing bolt bellcrank throttle linkage mounting plate Bend up leadout loop ends now cover sharp ends tape prevent injuries Give entire wing assembly good final sanding Use Sig Stix Sig Koverall cover wing Brush two coats clear dope set assembly aside Assembly An unsightly nonscale cowling opening glow plug access avoided using remote glow plug connector Install its October 1999 49 Front view shows stringer notches cooling air duct opening Four /a dowel pins used align cowl Aluminum tubing guide passes through holes bulkheads ensures fuselage will alignment Bulkheads engine mount main landing gear struts some stringers have installed Note cooling air duct HOWARD PETE Type CL Scale Wingspan 4O/4 inches Engine 05 32 Flying weight 65 ounces approx Construction Built-up Covering/finish Sig Koverall Sig dope Tail surfaces have 1/ea plywood cores balsa ribs Strong light realistic fabric-covered structures 1-1/4 OIA COOLINGI/IS DIA GRASS TUBING AIR OUTLETRIGGING WIRE GUIDE IKMART PLASTIC GOLF CLUB TUBE 7IS ALL STRINGERS IA U B BASGWOOO I/B SOT S AL S I/B PlYWOOD rR PLYWOOD SEPARATIONSEPARATION LINE CUT AWAT AFTERTA8 ASSEMBLY TO CLEAR 2 ~1ET1ZT2II2 CARBURETOR DETAILS SIMMY ERRALIOTGA -iIE7STUCK N ROUST I/SO PLYWOOD SPLIT BIROR REMOVE ASTYPICAL SLOT DETAIL IN POURERS BEGS AFTERDAYRRI 7 TO INTERLOCK RITA SLOTG IN I/3D PLYWOOD COWLINSO COWLING GOLD I/B PLYIROOS LOCATIONS 5 DII I/A RAGSWOOS PLAGUING RECESS HUGO I SCALE PROP READ BOLTII ASOS IRESS COWLING STRINGERS I/B PLYWUOD COLOR SCHEME AIRCRAFT ALL AEGIS WRITE LETTERING & DETAILS AG NOTES Ii CENTER OPTRRGTTLE ONANR SNAWITY 031 BRAGS 0 READLOCR 001 K 1-I/SD PLYWOOb T XlCOOLING I MOTE BLOWIlAIR DUCT / PLUI CONNECTOR__Il ENGINE --- FASTA DI/UOIA SPINNER 0 B ASSOCIATESEBTENSION NO SOUlGRAFT RG-SCALE PROVIDES ACCESS TO REMOTE GLOW PLUG BASSWOOD PA RNBG~ MUDO WRE SAG C W ~12 BBA WE LANSING SEAR SETAIL NOT TO SCALE S-i/S 02 TANK RU--N ~-/e1/PJ~ P BP WOOB A~I-CGAAL GWOOD EDJlBEWALL BSR BA GAiSUBD A4z{jBASSROL ~2JjB BA GA - SE'- SE ABA OS NERO ______________REMOTE GDA PLUS K DON T INS ULOCY BUSYWOSA I_______________________I--- STRINGERS ORATTES CLARITY II/BB 3/1K BASSWOOD CoR TO 5/4 ALUMINUM TUBING BOTTOM SIDE DROWN FOR CLARITY -S/IA BASGWUOD PLSO IS GNAW PIT CRA IN TABNS OK FUSELAGE FORMER ALIGNMENT GUIDE SELLORANK B UNDER CARRIAGE B RAT MOAN SB PL WOOSREND DOORS I/4G S/B _________ BASGWOBO~5~ A/4~WELL. \ BY DOER OFFSET LAMINATES I/IAG I/N BALSA I/NM PLYWOOD CURE RI I/IA Al/B BALGA I/ B 5/5 BALSA UBLDITh\ V BLACK DATLIN K SS RNGERS SR DIG ELYATOR PUGRROOAXURNSMUSIC WIRE 1/4 DIA MUSIC WIRE4 1/5 PLYWOOD I- I/OPLYWGSD II REGO TAI SKID SUPPORT SISSASB III T7/2YIBRATON DAMPENERRR9NG WRE PTT ASS I/IA SIAI/lB WA BRASS TAKE BRAGS RODCRW N DINLE 7DB PR I/SDOIA MUSIC ARE RIGGING WIGESSLBTSDIN MISIC /ABLE /G DR IRE RIGGING MAGIC WIRE PlN- I/SD GIA9 SI/BDIA WILLIAMS BROSMAGIC AWE ""NUTOUT TRREA1~~ GOLDEN ARE WHEELS MO GDREAM 010 GUT BRAGG BRACKETSLIP ONTO ASLE RSOLDERI DOUBLE AROUND DRILL ROD SWEAT SOLDER FREE ENDS DRILL SOT & BEND AS SASAG ASSEMBLE N SOLGER SN ABLE AG GROWN NOT TO SCALE AVIATION I BOULE 51 -0 WINGSPAN /U SESIDWED B DRAWN BY PRANK BEUTTY WACO PLAN ST PRUNA BEATTY 1O-ISRB ALL RISITS SYCETIBRAS cii 0 0 D 0 - L4- II TJjUIJ II BRASS TUBING PITOT TUBE DETAILS SLACK 37"SK-ZYPITOT TARE NR-ZT IROD ILYIK BALSAGOLD WITHBLACK 37 ING WIRE LOCATORS _________________LEADING EGGEBLACK OOTLWESGOD-IN SPARD WITH SASSAUSO 70 OUNCE LEAD ANGLE RIG sj7 LE RiB 3voosr RALSA PRONTSPAR IWW B BASSWOOD REAR SPAR II -EflQO_SPAR 1/B BUOSIROOD 0 REUD - - COWLNG PATTERG 1732 PLYWOOD FRONTREAR SLOTS INTERLOCIG WITH MATING SLOTS IN BOLAIIEAT ROTH COWLINSO B PL WOOD 00 RA NO EDGESOWEA ERA EMSS AGOG SE0 C AWA ERAN AS SE M B ~1II1 B OS j1~114YjL7GSOAAREB WAC BASSWOOO SPAR AR SPARI AGEDD7 175 PLTWOOO -O REDO 3\RALSA PAIRING COWLING PATTERN 70 PTWGDSI FRONTREARPLANK SIUOATEDI/B BALSA GRASS LATOP N BOTTOM II HDRARIRS PLYWOOD COKE DARK GREENTRIM ERCESS MATERIAL AFTER_________ ASSEMBLY BOTR COWLINGS BUILD UP EPOG AROUNDRODART BELLORANK MOONTCU OGGAREI/IA DIA GRASS TUBE BIASING WIRE LOCATOR UP-RIGHT BELLEBANK BALSA PAIRB4G 3 DIHEDRALI1~ZDCI ING WIRE CONNECTION DETAIL CAL AIBRATION DAMPENER AIR C 0-I/B BRASS ROD 3RE PLYWOOD DISKALLRIISI/reA&SAE I1I11 0I23BSK EE BRACKET DETAL ILifEP 2-1i3f~i PRESS I/IN DIG BRASSPAGS I/GO DIG WIRE THRASLIP 5/32 BRASS TRAINS THEN COGERPHINT NWIRED- ALLOW 3/B OVERLAP TUBING INTO DRiLLEDTONING BEND WIRE ENDODYER WIRES SWEAT SOLDER BOLE N COG -PARALELL WITH RIGGING POLISH MODEL TO SCALESESIGNED N ORAWN RY FRANK W BEATTY NOTE RIGGING WIRES ARE CONSIDERED TO SE FUNCTIONAL MODEL DHOILO NOT BE FLOWN WITHOUT TREM ~ARIAT ION PETE INKED PLAN ST FRANG REATTT BR-SB ALL RIOGTS SHEET RESERVES 2 OP 0 0 C 0 CD 0 0 0 cii mounting block bracket firewall bulkhead 4A Access remote glow plug through scale hole bottom cowling Attach wine fuselage Tabs bulkhead separation lines should mate receptacles wing center section bulkheads should automatically align wing axes double-check alignments before epoxying wing llace Cement dowel-pin fin stabilizer mount assembly fuselage Install elevator pushrods throttle linkages check fieedom movement Fit Vs x /4 sheet balsa fairings way around wing root fuselage remainder stringers can added Fit shape cement fairing blocks fin-to-stabilizer joint Sand entire fuselage well cover using Stix-It Koverall two coats Sig Dope Install fairings undercarriage axle struts prefer use basswood such fairings because resists compression fatigue-type distortions model has hard landing Cover struts /2-ounce fiberglass Finish At point model assembled engine wheels hardware items installed weighed approximately 51 ounces hung nose-down about 50 suspended its desienated Center Gravity CC location reasonable assume completed model would weigh mid 60s require little no ballast balance properly seemed going well fatal error made time scrapped 40-year-old hobby type compressor bought new /2-horsepower compressor same time switched brands dope new sealers dopes thinned applied manner accustomed realized new paints thicker required great deal thinner fewer coats would required little old compressor would have bilked new compressor dutifully laid heavy stuff Suddenly aware now very heavy model gone decidedly tailheavy Several courses action including stripping paint off contemplated summer contest season dreadfully near decided go ahead finish model finishing process model should include number coats sanding sealer followed coats white dope wet-or-dry sanding after coat satisfied white can dress up model decorative markings Mask off racing registration numbers wings fuselage sides spray black Cover up 37s wings fuselage Mask around registration numbers wing top bottom surfaces /s tape Spray remaining enclosed areas gold Prepare pane glass coating very soapy water dry pane sprayed gold Pete NR-2Y lettering rudder cut out lifted glass applied model using thinner bonding agent protected clear dope overspray See description technique Hot Canary article March 1996 Model Aviation Talcum powder rubbed lightly over gold Pete NR-27 lettering use black Top-Elite Panel-Line Pen draw black pinstriping around lettering Protect clear dope overspray little previous success sort ink applications doped surfaces procedure made almost like writing note paper after talcum applied little trick am indebted information gleaned Windy Urtnowskis videotapes Various panel lines applied using talcum panel-line pen technique Simulated rivets screw heads applied Pilot Silver Marker Protect clear dope overspray Finally several coats Sig clear dope sprayed over entire model whole hand-rubbed compound polished Final Assembly Study drawings carefully install rigging wires INTRODUCING NW LINE PRECISION PROP NUTS AND HUBS Now greater choice quality Tru-Turn products 3 sizes PROP NUTS ranging 5/8 7/8 diameter 2 shapes available stock R/O engine thread sizes 5 sizes PROP HUBS ranging 1to 2 diameter 2 shapes new PROP NUTS PROP HUBS addition existing line precision aluminum spinners range 1-1/2 6 over 90 shapes sizes blade configurations new Tru-Turn PROP HUB line complimented extensive line over 70 adapter kits Tru-Turn makes adapter production R/O engine market have adapter problem. help phone call away. See hobby dealer call us direct. Made USA PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY ATILITY T LOOKS TY PO Box 836 South Houston Texas 77587 713 / 943-1867 Visit us internet ru-turnnet ws 52 Model Aviation s tail Details brackets axles sweated tubing fittings rigging wire junction should selfexplanatory fear axle bracket fittings would fail first landing Instead four original-design fittings top wing failed first flight system replaced sweat tubing hardware shown rigging setup holding up nicely rigging considered functional model should flown cockpit doors formed 010 sheet brass doors attached miniature pins hinge line drawn panel line pin protected clear dope Finish model adding remaining details such vibration dampeners exhaust stacks dummy carburetor manifold Contest rules require us install dummy pilot visible flight Mine painted using advice gleaned Don Typonds fabulous videotape Paint Pilot Figuresit looks great videotape should serious Scale builders library true-scale carved propeller adds wonders models appearance prop made four /32 basswood laminations Carve stain paint varnish bolt model will pleased results Flying There no question excess weight bad avoided lately have come around thinking also down side lightly loaded models thing get bounced around wind especially true doing taxi operations Such operations upwind side circle coming wind can troublesome have come realize heavier models enjoy some advantages Truly overweight models can flown successfully balanced properly have ample power Such models very unforgiving pilot errors however pilot errors no-no built originally intended ready-to-fly weight 60-65 ounces Pete will dream machine aspects flying ground-handling operations So fly 90-ounce Pete sure model balanced properly nose should bang down approximately five degrees suspended CG location Fly model shorter-than-normal linessay 52 feet long OS 32 provides ample power Pete flies quite fast smooth Takeoffs level flight routine matters High flight operations especially attempted significant amount wind will definitely put model risk 54 Model Aviation 4 stalling out disastrous consequences Power-on landings accomplished maintaining sufficient power speed fly airplane way ground Gradually reduce power altitude until model has touched down rolling its main gear reduce power bit use bit elevator set tail ground trick maintain enough speed avoid stalling model landing approach yet going slowly enough avoid ballooning back air upwind side landing approach taxi run am telling Pete going weigh 65 ouncesis During learning process flying overweight clipped-wing racer some really hard landings made model cartwheeled once Midwest contest its wheels dug circles soft dirt surfaces Much surprise no compression fatigue stress cracks have shown up part models surface So listen up Build light fly right k Beatty 2608 Pontoon Rd Granite City IL 62040 Custom Built R/CAirCr aft Engines Single Twin cylinder Gas Engines Sini948 Fox Manufactuf any has building worlds finest model airplane motors carry filltliie accessories model airplane engines including Fox 24 32 42 58 Fox new engines coming soon Call today free catalog look us up internet wwwfoxmanufacturingcom 501 646-1656 Fax 501 646-1757 5305 Towson Avenue Fort Smith AR 72901 e-mail foxmotors@aolcom /CO tRI Olt1ffA4aUchi Association RnR Products Presents Wayne Handleys new Oracle TURBO RAVEN 1/5 Scale Options 1 High performance 2 mu vinyl graphics masking Set includes Raven masking gold border fuse wing wheel pants Oracle graphics wing stab fuse Price $65 Option 2 Factory applied graphics DuPont Chroma paint Graphics t Gene Barton Spinner Just looking Turbo Raven screams - EXTREME Two months after its debut Stockton CA Airshow 11/98 Wayne new Turbo Raven set new time-toclimb world record sea level 3000 meters 9843 feet less minute 10 seconds Turbo Ravens sexy sleek lines generous proportions ie large fin/rudder area gigantic strip ailerons allowed us design fully molded great flying model deviating originals outline no STAND-OFF-SCALE 4- Light weight hollow-core wing technology utilizing epoxy glass & carbon fiber skin hinging both wing stabilizer 4- Removable wing stab already mounted 4- Carbon fiber gear strut its mount hardware place 4 Durable gel-coat surfacing red/white no shrink film used zontally split engine cowl realism service ability removing prop spinner 4 Control surface horns attached Introductory Price ping Handling 56 Model Aviation ff best model aitplane parts First Line Signature Series AIatIo 935 Tamarack Avenue San Jose CA 95128 Phone 408248-4642 Fax 408248-4642 Email slpstream@earthlinknet Website wwwslipstream-aviationcom
Edition: Model Aviation - 1999/10
Page Numbers: 46, 47, 48, 49, 50, 51, 52, 54, 56
Ho Benny CL Howards 1930s racer Scale competition 46 Model Aviation ank Beatty Pete rest Note hand-carved scale prop screw eye used check CG Tips gleaned Don Typonds Paint Pilot Figures tape Dummy manifold largest cutout helps hide otherwise Robins View Productions added realistic detail unsightly hole Stacks protrude slightly above openings Fullscale aircraft engineers faced challenging design performance requirements often can resolved compromise tradeoff same holds true model designers will make big difference model will designed built instance weekend sport model all-out competition machine Pete intended competition machine would participate future Nationals order enhance its true scale appearance control system leadout wires should enclosed wing recognized sharply curved fillet wing-to-fuselage joint would complicate locating bellcrank Space limitations clearances dictated use 2 /-inch short-span bellerank though might induce somewhat sensitive foreand-aft pitch-axis flight qualities As design work progressed noted bellcrank mounting plate must also serve rear undercarriage strutmounting plate raised concerns hard landing might buckle plate render control system inoperable fear has proved groundless Finally seemed wing center section should built separate unit order facilitate bellcrank rear undercarriage strut installations An alternate approach weekend sport model would locate 3- 3/2-inch long-span bellcrank top engine mounts between bulkheads 6 9 fuselage wing center section could built unit fears about undercarriage strut location would also eliminated course revised cutouts rerouting throttle elevator pushrod linkages would required Tradeoffs anyone CONSTRUCTION Though Pete especially difficult model build construction sequence important tail surfaces wing center section wing outer panels built first construction will delayed parts needed Stabilizer Elevators Thin scalelike strong fabric-covered tail surface structures can achieved building around internal /64 plywood core Cut /&i plywood cores stabilizer elevators Cement spars balsa ribs cores Soak four /j X a strips ammonia bind around structures outlines dry strips can cemented structures Install elevator horn Robart hinges Build up epoxy around hardware items plywood cutouts joints quite strong will need no other reinforcement Drill stabilizer spar use cyanoacrylate CyA glue attach /16 brass tubing holes rigging wire locators October 1999 47 Ready fuselage covering Author prefers realism sturdiness small basswood stringers sag after covering finish have applied Cover surfaces using Sig Stix-it Sig Koverall Sig clear dope set aside Fin/Rudder built same manner stabilizer elevators Fitting shaping rudder cone fairings must wait until can faired rear fuselage Wing Center Section Make up bellcrank mounting plate Bolt bellerank plate check freedom movement remove bellcrank plate center section will built upside down building board Pin /s X /2 x 7 wood strip board guide will help align center section bulkheads Fit bulkheads 6A 7A 8 onto bellcrank mounting plate Epoxy parts together before set up quickly pin parts building board using wood strip bulkhead cutouts ensure alignment Epoxy plywood ribs H bulkheads 5 9A assembly Plank exposed curved wing root fillets l/ balsa strips dry lift assembly board plank fillets top surface /s balsa strips CyA ywood rectangles bulkheads 6A 9A form boxlike receptacles will mate tabs bulkheads 6 9 wing assembled fuselage system will square wing fuselage set dihedral angle set incidence angle accurately rear landing gear struts will bound bellcrank mounting plate later key structural element Wing Outer Panels Cut out ribs false ribs spars leading trailing edges Block up pin aileron spar leading trailing edges building board Slip ribs slots Thread /s basswood spars through ribs Fit false ribs position CyA joints Lift assemblies board Fit 3/4 balsa tips wings Fit sheet balsa fillers mounting aileron horn details Box spars rigging wire locations basswood blocks Add wing tip weight Shape sand wing panels final shape Test-fit center section outer panels Mark matching cutouts port wing root H ribs remove material required leadout wire passageway Use extension drill bit pierce holes ribs leadout wires port outer wing panel Install tubing leadout wire guides wingtip Cut ailerons separate wing panels Drill spars CyA As diameter brass tubing holes rigging wire locators Set assemblies aside now Fuselage Obtain piece 3/-i diameter Reynolds aluminum tubing 26 inches long Make up plug assembly see drawing detail CyA end tubing plug end will slip cutout bulkhead 13 narrow tail end fuselage Carefully align CyA /s x s basswood strip onto bottom side tubing will keep bulkheads rotating out alignment being threaded onto tube Carefully mark bulkhead locations tube assembly will key tool used building straight round stringered fuselage am indebted Robert Underwoods article describing technique Model Airplane News March 1996 Cut out bulkheads Make up bind forward landing gear strut axle assembly bulkhead 4A Thread bulkheads onto tubing Carefully align bulkheads CyA top three stringers side place Before proceeding use wing center section make sure tabs fuselage formers mate corresponding cutouts wing center section bulkheads Epoxy engine mounts gussets / dowel locking pegs fuel tank 11/4 diameter plastic golf tube tailskid assembly position Use plastic golf tube allows us avoid making nonscale openings cowling providing passage through fuselage cooling air can exit out cockpit opening 48 Model Aviation center section Brodak three-wire belicrank temporarily installed photo purposes Starboard wing panel test-fitted center section Three panels joined fairing blocks installed bellcrank leadout wires place Note wing root curve Upper cowl 1/32 plywood Lower section /32 basswood planked over plywood bulkheadslighter balsa Photos author Graphic Design Jill Ann Cavanaugh Install remaining stringers above fuselage centerline Study plans drill temporarily fit two A6 diameter brass tubing rigging wire locators position between bulkheads 6 7 Cut out 1/32 plywood cowling soak ammonia snap tape position top fuselage dry mark drill holes rigging wire locators CyA cowling tubing place Make up head rest fairing block cement fuselage Add /8 balsa filler strips base cowling headrest Bolt engine engine mounts Make up install tntermediate throttle crank Temporarily tape wing center section fuselage order bend up fit I64 diameter music wire rear landing gear strut correct shape mate main gear axle Make up linkage throttle crank Set center section rear landing gear strut throttle linkage aside now Cowling Three plywood formers four plywood stringers assembled trued Cover upper structure A2 plywood cowling similar procedure used fuselage Plank lower cowling /32 x wood strips nose block three layers wood hollowed shown drawings Cowlings made hardwoods just smidgen difficult build just little heavier built balsa However hardwoods take paints beautifully ding resistance high openings can have thin crisp scalelike edges hold up use cowling break models firewall slides forward removal aligned held position four /s dowel guide pins firewall two blind mounting bolts hidden behind spinner Cover cowling /.ounce fiberglass set aside Wing Assembly wing will assembled upside down building board Use one-inch-thick block wood raise center section above building board surface Slip outer wing panels onto center section block tips up approximately t/ inch Epoxy joints dty lift assembly board Fit carve balsa leading trailing edge center section root fairing blocks shape Leave long enough extend fuselage past planking line fuselage planking can trimmed butt against root fillets Bind epoxy rear undercarriage struts mounting plate Thread leadout wires through wing bolt bellcrank throttle linkage mounting plate Bend up leadout loop ends now cover sharp ends tape prevent injuries Give entire wing assembly good final sanding Use Sig Stix Sig Koverall cover wing Brush two coats clear dope set assembly aside Assembly An unsightly nonscale cowling opening glow plug access avoided using remote glow plug connector Install its October 1999 49 Front view shows stringer notches cooling air duct opening Four /a dowel pins used align cowl Aluminum tubing guide passes through holes bulkheads ensures fuselage will alignment Bulkheads engine mount main landing gear struts some stringers have installed Note cooling air duct HOWARD PETE Type CL Scale Wingspan 4O/4 inches Engine 05 32 Flying weight 65 ounces approx Construction Built-up Covering/finish Sig Koverall Sig dope Tail surfaces have 1/ea plywood cores balsa ribs Strong light realistic fabric-covered structures 1-1/4 OIA COOLINGI/IS DIA GRASS TUBING AIR OUTLETRIGGING WIRE GUIDE IKMART PLASTIC GOLF CLUB TUBE 7IS ALL STRINGERS IA U B BASGWOOO I/B SOT S AL S I/B PlYWOOD rR PLYWOOD SEPARATIONSEPARATION LINE CUT AWAT AFTERTA8 ASSEMBLY TO CLEAR 2 ~1ET1ZT2II2 CARBURETOR DETAILS SIMMY ERRALIOTGA -iIE7STUCK N ROUST I/SO PLYWOOD SPLIT BIROR REMOVE ASTYPICAL SLOT DETAIL IN POURERS BEGS AFTERDAYRRI 7 TO INTERLOCK RITA SLOTG IN I/3D PLYWOOD COWLINSO COWLING GOLD I/B PLYIROOS LOCATIONS 5 DII I/A RAGSWOOS PLAGUING RECESS HUGO I SCALE PROP READ BOLTII ASOS IRESS COWLING STRINGERS I/B PLYWUOD COLOR SCHEME AIRCRAFT ALL AEGIS WRITE LETTERING & DETAILS AG NOTES Ii CENTER OPTRRGTTLE ONANR SNAWITY 031 BRAGS 0 READLOCR 001 K 1-I/SD PLYWOOb T XlCOOLING I MOTE BLOWIlAIR DUCT / PLUI CONNECTOR__Il ENGINE --- FASTA DI/UOIA SPINNER 0 B ASSOCIATESEBTENSION NO SOUlGRAFT RG-SCALE PROVIDES ACCESS TO REMOTE GLOW PLUG BASSWOOD PA RNBG~ MUDO WRE SAG C W ~12 BBA WE LANSING SEAR SETAIL NOT TO SCALE S-i/S 02 TANK RU--N ~-/e1/PJ~ P BP WOOB A~I-CGAAL GWOOD EDJlBEWALL BSR BA GAiSUBD A4z{jBASSROL ~2JjB BA GA - SE'- SE ABA OS NERO ______________REMOTE GDA PLUS K DON T INS ULOCY BUSYWOSA I_______________________I--- STRINGERS ORATTES CLARITY II/BB 3/1K BASSWOOD CoR TO 5/4 ALUMINUM TUBING BOTTOM SIDE DROWN FOR CLARITY -S/IA BASGWUOD PLSO IS GNAW PIT CRA IN TABNS OK FUSELAGE FORMER ALIGNMENT GUIDE SELLORANK B UNDER CARRIAGE B RAT MOAN SB PL WOOSREND DOORS I/4G S/B _________ BASGWOBO~5~ A/4~WELL. \ BY DOER OFFSET LAMINATES I/IAG I/N BALSA I/NM PLYWOOD CURE RI I/IA Al/B BALGA I/ B 5/5 BALSA UBLDITh\ V BLACK DATLIN K SS RNGERS SR DIG ELYATOR PUGRROOAXURNSMUSIC WIRE 1/4 DIA MUSIC WIRE4 1/5 PLYWOOD I- I/OPLYWGSD II REGO TAI SKID SUPPORT SISSASB III T7/2YIBRATON DAMPENERRR9NG WRE PTT ASS I/IA SIAI/lB WA BRASS TAKE BRAGS RODCRW N DINLE 7DB PR I/SDOIA MUSIC ARE RIGGING WIGESSLBTSDIN MISIC /ABLE /G DR IRE RIGGING MAGIC WIRE PlN- I/SD GIA9 SI/BDIA WILLIAMS BROSMAGIC AWE ""NUTOUT TRREA1~~ GOLDEN ARE WHEELS MO GDREAM 010 GUT BRAGG BRACKETSLIP ONTO ASLE RSOLDERI DOUBLE AROUND DRILL ROD SWEAT SOLDER FREE ENDS DRILL SOT & BEND AS SASAG ASSEMBLE N SOLGER SN ABLE AG GROWN NOT TO SCALE AVIATION I BOULE 51 -0 WINGSPAN /U SESIDWED B DRAWN BY PRANK BEUTTY WACO PLAN ST PRUNA BEATTY 1O-ISRB ALL RISITS SYCETIBRAS cii 0 0 D 0 - L4- II TJjUIJ II BRASS TUBING PITOT TUBE DETAILS SLACK 37"SK-ZYPITOT TARE NR-ZT IROD ILYIK BALSAGOLD WITHBLACK 37 ING WIRE LOCATORS _________________LEADING EGGEBLACK OOTLWESGOD-IN SPARD WITH SASSAUSO 70 OUNCE LEAD ANGLE RIG sj7 LE RiB 3voosr RALSA PRONTSPAR IWW B BASSWOOD REAR SPAR II -EflQO_SPAR 1/B BUOSIROOD 0 REUD - - COWLNG PATTERG 1732 PLYWOOD FRONTREAR SLOTS INTERLOCIG WITH MATING SLOTS IN BOLAIIEAT ROTH COWLINSO B PL WOOD 00 RA NO EDGESOWEA ERA EMSS AGOG SE0 C AWA ERAN AS SE M B ~1II1 B OS j1~114YjL7GSOAAREB WAC BASSWOOO SPAR AR SPARI AGEDD7 175 PLTWOOO -O REDO 3\RALSA PAIRING COWLING PATTERN 70 PTWGDSI FRONTREARPLANK SIUOATEDI/B BALSA GRASS LATOP N BOTTOM II HDRARIRS PLYWOOD COKE DARK GREENTRIM ERCESS MATERIAL AFTER_________ ASSEMBLY BOTR COWLINGS BUILD UP EPOG AROUNDRODART BELLORANK MOONTCU OGGAREI/IA DIA GRASS TUBE BIASING WIRE LOCATOR UP-RIGHT BELLEBANK BALSA PAIRB4G 3 DIHEDRALI1~ZDCI ING WIRE CONNECTION DETAIL CAL AIBRATION DAMPENER AIR C 0-I/B BRASS ROD 3RE PLYWOOD DISKALLRIISI/reA&SAE I1I11 0I23BSK EE BRACKET DETAL ILifEP 2-1i3f~i PRESS I/IN DIG BRASSPAGS I/GO DIG WIRE THRASLIP 5/32 BRASS TRAINS THEN COGERPHINT NWIRED- ALLOW 3/B OVERLAP TUBING INTO DRiLLEDTONING BEND WIRE ENDODYER WIRES SWEAT SOLDER BOLE N COG -PARALELL WITH RIGGING POLISH MODEL TO SCALESESIGNED N ORAWN RY FRANK W BEATTY NOTE RIGGING WIRES ARE CONSIDERED TO SE FUNCTIONAL MODEL DHOILO NOT BE FLOWN WITHOUT TREM ~ARIAT ION PETE INKED PLAN ST FRANG REATTT BR-SB ALL RIOGTS SHEET RESERVES 2 OP 0 0 C 0 CD 0 0 0 cii mounting block bracket firewall bulkhead 4A Access remote glow plug through scale hole bottom cowling Attach wine fuselage Tabs bulkhead separation lines should mate receptacles wing center section bulkheads should automatically align wing axes double-check alignments before epoxying wing llace Cement dowel-pin fin stabilizer mount assembly fuselage Install elevator pushrods throttle linkages check fieedom movement Fit Vs x /4 sheet balsa fairings way around wing root fuselage remainder stringers can added Fit shape cement fairing blocks fin-to-stabilizer joint Sand entire fuselage well cover using Stix-It Koverall two coats Sig Dope Install fairings undercarriage axle struts prefer use basswood such fairings because resists compression fatigue-type distortions model has hard landing Cover struts /2-ounce fiberglass Finish At point model assembled engine wheels hardware items installed weighed approximately 51 ounces hung nose-down about 50 suspended its desienated Center Gravity CC location reasonable assume completed model would weigh mid 60s require little no ballast balance properly seemed going well fatal error made time scrapped 40-year-old hobby type compressor bought new /2-horsepower compressor same time switched brands dope new sealers dopes thinned applied manner accustomed realized new paints thicker required great deal thinner fewer coats would required little old compressor would have bilked new compressor dutifully laid heavy stuff Suddenly aware now very heavy model gone decidedly tailheavy Several courses action including stripping paint off contemplated summer contest season dreadfully near decided go ahead finish model finishing process model should include number coats sanding sealer followed coats white dope wet-or-dry sanding after coat satisfied white can dress up model decorative markings Mask off racing registration numbers wings fuselage sides spray black Cover up 37s wings fuselage Mask around registration numbers wing top bottom surfaces /s tape Spray remaining enclosed areas gold Prepare pane glass coating very soapy water dry pane sprayed gold Pete NR-2Y lettering rudder cut out lifted glass applied model using thinner bonding agent protected clear dope overspray See description technique Hot Canary article March 1996 Model Aviation Talcum powder rubbed lightly over gold Pete NR-27 lettering use black Top-Elite Panel-Line Pen draw black pinstriping around lettering Protect clear dope overspray little previous success sort ink applications doped surfaces procedure made almost like writing note paper after talcum applied little trick am indebted information gleaned Windy Urtnowskis videotapes Various panel lines applied using talcum panel-line pen technique Simulated rivets screw heads applied Pilot Silver Marker Protect clear dope overspray Finally several coats Sig clear dope sprayed over entire model whole hand-rubbed compound polished Final Assembly Study drawings carefully install rigging wires INTRODUCING NW LINE PRECISION PROP NUTS AND HUBS Now greater choice quality Tru-Turn products 3 sizes PROP NUTS ranging 5/8 7/8 diameter 2 shapes available stock R/O engine thread sizes 5 sizes PROP HUBS ranging 1to 2 diameter 2 shapes new PROP NUTS PROP HUBS addition existing line precision aluminum spinners range 1-1/2 6 over 90 shapes sizes blade configurations new Tru-Turn PROP HUB line complimented extensive line over 70 adapter kits Tru-Turn makes adapter production R/O engine market have adapter problem. help phone call away. See hobby dealer call us direct. Made USA PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY ATILITY T LOOKS TY PO Box 836 South Houston Texas 77587 713 / 943-1867 Visit us internet ru-turnnet ws 52 Model Aviation s tail Details brackets axles sweated tubing fittings rigging wire junction should selfexplanatory fear axle bracket fittings would fail first landing Instead four original-design fittings top wing failed first flight system replaced sweat tubing hardware shown rigging setup holding up nicely rigging considered functional model should flown cockpit doors formed 010 sheet brass doors attached miniature pins hinge line drawn panel line pin protected clear dope Finish model adding remaining details such vibration dampeners exhaust stacks dummy carburetor manifold Contest rules require us install dummy pilot visible flight Mine painted using advice gleaned Don Typonds fabulous videotape Paint Pilot Figuresit looks great videotape should serious Scale builders library true-scale carved propeller adds wonders models appearance prop made four /32 basswood laminations Carve stain paint varnish bolt model will pleased results Flying There no question excess weight bad avoided lately have come around thinking also down side lightly loaded models thing get bounced around wind especially true doing taxi operations Such operations upwind side circle coming wind can troublesome have come realize heavier models enjoy some advantages Truly overweight models can flown successfully balanced properly have ample power Such models very unforgiving pilot errors however pilot errors no-no built originally intended ready-to-fly weight 60-65 ounces Pete will dream machine aspects flying ground-handling operations So fly 90-ounce Pete sure model balanced properly nose should bang down approximately five degrees suspended CG location Fly model shorter-than-normal linessay 52 feet long OS 32 provides ample power Pete flies quite fast smooth Takeoffs level flight routine matters High flight operations especially attempted significant amount wind will definitely put model risk 54 Model Aviation 4 stalling out disastrous consequences Power-on landings accomplished maintaining sufficient power speed fly airplane way ground Gradually reduce power altitude until model has touched down rolling its main gear reduce power bit use bit elevator set tail ground trick maintain enough speed avoid stalling model landing approach yet going slowly enough avoid ballooning back air upwind side landing approach taxi run am telling Pete going weigh 65 ouncesis During learning process flying overweight clipped-wing racer some really hard landings made model cartwheeled once Midwest contest its wheels dug circles soft dirt surfaces Much surprise no compression fatigue stress cracks have shown up part models surface So listen up Build light fly right k Beatty 2608 Pontoon Rd Granite City IL 62040 Custom Built R/CAirCr aft Engines Single Twin cylinder Gas Engines Sini948 Fox Manufactuf any has building worlds finest model airplane motors carry filltliie accessories model airplane engines including Fox 24 32 42 58 Fox new engines coming soon Call today free catalog look us up internet wwwfoxmanufacturingcom 501 646-1656 Fax 501 646-1757 5305 Towson Avenue Fort Smith AR 72901 e-mail foxmotors@aolcom /CO tRI Olt1ffA4aUchi Association RnR Products Presents Wayne Handleys new Oracle TURBO RAVEN 1/5 Scale Options 1 High performance 2 mu vinyl graphics masking Set includes Raven masking gold border fuse wing wheel pants Oracle graphics wing stab fuse Price $65 Option 2 Factory applied graphics DuPont Chroma paint Graphics t Gene Barton Spinner Just looking Turbo Raven screams - EXTREME Two months after its debut Stockton CA Airshow 11/98 Wayne new Turbo Raven set new time-toclimb world record sea level 3000 meters 9843 feet less minute 10 seconds Turbo Ravens sexy sleek lines generous proportions ie large fin/rudder area gigantic strip ailerons allowed us design fully molded great flying model deviating originals outline no STAND-OFF-SCALE 4- Light weight hollow-core wing technology utilizing epoxy glass & carbon fiber skin hinging both wing stabilizer 4- Removable wing stab already mounted 4- Carbon fiber gear strut its mount hardware place 4 Durable gel-coat surfacing red/white no shrink film used zontally split engine cowl realism service ability removing prop spinner 4 Control surface horns attached Introductory Price ping Handling 56 Model Aviation ff best model aitplane parts First Line Signature Series AIatIo 935 Tamarack Avenue San Jose CA 95128 Phone 408248-4642 Fax 408248-4642 Email slpstream@earthlinknet Website wwwslipstream-aviationcom
Edition: Model Aviation - 1999/10
Page Numbers: 46, 47, 48, 49, 50, 51, 52, 54, 56
Ho Benny CL Howards 1930s racer Scale competition 46 Model Aviation ank Beatty Pete rest Note hand-carved scale prop screw eye used check CG Tips gleaned Don Typonds Paint Pilot Figures tape Dummy manifold largest cutout helps hide otherwise Robins View Productions added realistic detail unsightly hole Stacks protrude slightly above openings Fullscale aircraft engineers faced challenging design performance requirements often can resolved compromise tradeoff same holds true model designers will make big difference model will designed built instance weekend sport model all-out competition machine Pete intended competition machine would participate future Nationals order enhance its true scale appearance control system leadout wires should enclosed wing recognized sharply curved fillet wing-to-fuselage joint would complicate locating bellcrank Space limitations clearances dictated use 2 /-inch short-span bellerank though might induce somewhat sensitive foreand-aft pitch-axis flight qualities As design work progressed noted bellcrank mounting plate must also serve rear undercarriage strutmounting plate raised concerns hard landing might buckle plate render control system inoperable fear has proved groundless Finally seemed wing center section should built separate unit order facilitate bellcrank rear undercarriage strut installations An alternate approach weekend sport model would locate 3- 3/2-inch long-span bellcrank top engine mounts between bulkheads 6 9 fuselage wing center section could built unit fears about undercarriage strut location would also eliminated course revised cutouts rerouting throttle elevator pushrod linkages would required Tradeoffs anyone CONSTRUCTION Though Pete especially difficult model build construction sequence important tail surfaces wing center section wing outer panels built first construction will delayed parts needed Stabilizer Elevators Thin scalelike strong fabric-covered tail surface structures can achieved building around internal /64 plywood core Cut /&i plywood cores stabilizer elevators Cement spars balsa ribs cores Soak four /j X a strips ammonia bind around structures outlines dry strips can cemented structures Install elevator horn Robart hinges Build up epoxy around hardware items plywood cutouts joints quite strong will need no other reinforcement Drill stabilizer spar use cyanoacrylate CyA glue attach /16 brass tubing holes rigging wire locators October 1999 47 Ready fuselage covering Author prefers realism sturdiness small basswood stringers sag after covering finish have applied Cover surfaces using Sig Stix-it Sig Koverall Sig clear dope set aside Fin/Rudder built same manner stabilizer elevators Fitting shaping rudder cone fairings must wait until can faired rear fuselage Wing Center Section Make up bellcrank mounting plate Bolt bellerank plate check freedom movement remove bellcrank plate center section will built upside down building board Pin /s X /2 x 7 wood strip board guide will help align center section bulkheads Fit bulkheads 6A 7A 8 onto bellcrank mounting plate Epoxy parts together before set up quickly pin parts building board using wood strip bulkhead cutouts ensure alignment Epoxy plywood ribs H bulkheads 5 9A assembly Plank exposed curved wing root fillets l/ balsa strips dry lift assembly board plank fillets top surface /s balsa strips CyA ywood rectangles bulkheads 6A 9A form boxlike receptacles will mate tabs bulkheads 6 9 wing assembled fuselage system will square wing fuselage set dihedral angle set incidence angle accurately rear landing gear struts will bound bellcrank mounting plate later key structural element Wing Outer Panels Cut out ribs false ribs spars leading trailing edges Block up pin aileron spar leading trailing edges building board Slip ribs slots Thread /s basswood spars through ribs Fit false ribs position CyA joints Lift assemblies board Fit 3/4 balsa tips wings Fit sheet balsa fillers mounting aileron horn details Box spars rigging wire locations basswood blocks Add wing tip weight Shape sand wing panels final shape Test-fit center section outer panels Mark matching cutouts port wing root H ribs remove material required leadout wire passageway Use extension drill bit pierce holes ribs leadout wires port outer wing panel Install tubing leadout wire guides wingtip Cut ailerons separate wing panels Drill spars CyA As diameter brass tubing holes rigging wire locators Set assemblies aside now Fuselage Obtain piece 3/-i diameter Reynolds aluminum tubing 26 inches long Make up plug assembly see drawing detail CyA end tubing plug end will slip cutout bulkhead 13 narrow tail end fuselage Carefully align CyA /s x s basswood strip onto bottom side tubing will keep bulkheads rotating out alignment being threaded onto tube Carefully mark bulkhead locations tube assembly will key tool used building straight round stringered fuselage am indebted Robert Underwoods article describing technique Model Airplane News March 1996 Cut out bulkheads Make up bind forward landing gear strut axle assembly bulkhead 4A Thread bulkheads onto tubing Carefully align bulkheads CyA top three stringers side place Before proceeding use wing center section make sure tabs fuselage formers mate corresponding cutouts wing center section bulkheads Epoxy engine mounts gussets / dowel locking pegs fuel tank 11/4 diameter plastic golf tube tailskid assembly position Use plastic golf tube allows us avoid making nonscale openings cowling providing passage through fuselage cooling air can exit out cockpit opening 48 Model Aviation center section Brodak three-wire belicrank temporarily installed photo purposes Starboard wing panel test-fitted center section Three panels joined fairing blocks installed bellcrank leadout wires place Note wing root curve Upper cowl 1/32 plywood Lower section /32 basswood planked over plywood bulkheadslighter balsa Photos author Graphic Design Jill Ann Cavanaugh Install remaining stringers above fuselage centerline Study plans drill temporarily fit two A6 diameter brass tubing rigging wire locators position between bulkheads 6 7 Cut out 1/32 plywood cowling soak ammonia snap tape position top fuselage dry mark drill holes rigging wire locators CyA cowling tubing place Make up head rest fairing block cement fuselage Add /8 balsa filler strips base cowling headrest Bolt engine engine mounts Make up install tntermediate throttle crank Temporarily tape wing center section fuselage order bend up fit I64 diameter music wire rear landing gear strut correct shape mate main gear axle Make up linkage throttle crank Set center section rear landing gear strut throttle linkage aside now Cowling Three plywood formers four plywood stringers assembled trued Cover upper structure A2 plywood cowling similar procedure used fuselage Plank lower cowling /32 x wood strips nose block three layers wood hollowed shown drawings Cowlings made hardwoods just smidgen difficult build just little heavier built balsa However hardwoods take paints beautifully ding resistance high openings can have thin crisp scalelike edges hold up use cowling break models firewall slides forward removal aligned held position four /s dowel guide pins firewall two blind mounting bolts hidden behind spinner Cover cowling /.ounce fiberglass set aside Wing Assembly wing will assembled upside down building board Use one-inch-thick block wood raise center section above building board surface Slip outer wing panels onto center section block tips up approximately t/ inch Epoxy joints dty lift assembly board Fit carve balsa leading trailing edge center section root fairing blocks shape Leave long enough extend fuselage past planking line fuselage planking can trimmed butt against root fillets Bind epoxy rear undercarriage struts mounting plate Thread leadout wires through wing bolt bellcrank throttle linkage mounting plate Bend up leadout loop ends now cover sharp ends tape prevent injuries Give entire wing assembly good final sanding Use Sig Stix Sig Koverall cover wing Brush two coats clear dope set assembly aside Assembly An unsightly nonscale cowling opening glow plug access avoided using remote glow plug connector Install its October 1999 49 Front view shows stringer notches cooling air duct opening Four /a dowel pins used align cowl Aluminum tubing guide passes through holes bulkheads ensures fuselage will alignment Bulkheads engine mount main landing gear struts some stringers have installed Note cooling air duct HOWARD PETE Type CL Scale Wingspan 4O/4 inches Engine 05 32 Flying weight 65 ounces approx Construction Built-up Covering/finish Sig Koverall Sig dope Tail surfaces have 1/ea plywood cores balsa ribs Strong light realistic fabric-covered structures 1-1/4 OIA COOLINGI/IS DIA GRASS TUBING AIR OUTLETRIGGING WIRE GUIDE IKMART PLASTIC GOLF CLUB TUBE 7IS ALL STRINGERS IA U B BASGWOOO I/B SOT S AL S I/B PlYWOOD rR PLYWOOD SEPARATIONSEPARATION LINE CUT AWAT AFTERTA8 ASSEMBLY TO CLEAR 2 ~1ET1ZT2II2 CARBURETOR DETAILS SIMMY ERRALIOTGA -iIE7STUCK N ROUST I/SO PLYWOOD SPLIT BIROR REMOVE ASTYPICAL SLOT DETAIL IN POURERS BEGS AFTERDAYRRI 7 TO INTERLOCK RITA SLOTG IN I/3D PLYWOOD COWLINSO COWLING GOLD I/B PLYIROOS LOCATIONS 5 DII I/A RAGSWOOS PLAGUING RECESS HUGO I SCALE PROP READ BOLTII ASOS IRESS COWLING STRINGERS I/B PLYWUOD COLOR SCHEME AIRCRAFT ALL AEGIS WRITE LETTERING & DETAILS AG NOTES Ii CENTER OPTRRGTTLE ONANR SNAWITY 031 BRAGS 0 READLOCR 001 K 1-I/SD PLYWOOb T XlCOOLING I MOTE BLOWIlAIR DUCT / PLUI CONNECTOR__Il ENGINE --- FASTA DI/UOIA SPINNER 0 B ASSOCIATESEBTENSION NO SOUlGRAFT RG-SCALE PROVIDES ACCESS TO REMOTE GLOW PLUG BASSWOOD PA RNBG~ MUDO WRE SAG C W ~12 BBA WE LANSING SEAR SETAIL NOT TO SCALE S-i/S 02 TANK RU--N ~-/e1/PJ~ P BP WOOB A~I-CGAAL GWOOD EDJlBEWALL BSR BA GAiSUBD A4z{jBASSROL ~2JjB BA GA - SE'- SE ABA OS NERO ______________REMOTE GDA PLUS K DON T INS ULOCY BUSYWOSA I_______________________I--- STRINGERS ORATTES CLARITY II/BB 3/1K BASSWOOD CoR TO 5/4 ALUMINUM TUBING BOTTOM SIDE DROWN FOR CLARITY -S/IA BASGWUOD PLSO IS GNAW PIT CRA IN TABNS OK FUSELAGE FORMER ALIGNMENT GUIDE SELLORANK B UNDER CARRIAGE B RAT MOAN SB PL WOOSREND DOORS I/4G S/B _________ BASGWOBO~5~ A/4~WELL. \ BY DOER OFFSET LAMINATES I/IAG I/N BALSA I/NM PLYWOOD CURE RI I/IA Al/B BALGA I/ B 5/5 BALSA UBLDITh\ V BLACK DATLIN K SS RNGERS SR DIG ELYATOR PUGRROOAXURNSMUSIC WIRE 1/4 DIA MUSIC WIRE4 1/5 PLYWOOD I- I/OPLYWGSD II REGO TAI SKID SUPPORT SISSASB III T7/2YIBRATON DAMPENERRR9NG WRE PTT ASS I/IA SIAI/lB WA BRASS TAKE BRAGS RODCRW N DINLE 7DB PR I/SDOIA MUSIC ARE RIGGING WIGESSLBTSDIN MISIC /ABLE /G DR IRE RIGGING MAGIC WIRE PlN- I/SD GIA9 SI/BDIA WILLIAMS BROSMAGIC AWE ""NUTOUT TRREA1~~ GOLDEN ARE WHEELS MO GDREAM 010 GUT BRAGG BRACKETSLIP ONTO ASLE RSOLDERI DOUBLE AROUND DRILL ROD SWEAT SOLDER FREE ENDS DRILL SOT & BEND AS SASAG ASSEMBLE N SOLGER SN ABLE AG GROWN NOT TO SCALE AVIATION I BOULE 51 -0 WINGSPAN /U SESIDWED B DRAWN BY PRANK BEUTTY WACO PLAN ST PRUNA BEATTY 1O-ISRB ALL RISITS SYCETIBRAS cii 0 0 D 0 - L4- II TJjUIJ II BRASS TUBING PITOT TUBE DETAILS SLACK 37"SK-ZYPITOT TARE NR-ZT IROD ILYIK BALSAGOLD WITHBLACK 37 ING WIRE LOCATORS _________________LEADING EGGEBLACK OOTLWESGOD-IN SPARD WITH SASSAUSO 70 OUNCE LEAD ANGLE RIG sj7 LE RiB 3voosr RALSA PRONTSPAR IWW B BASSWOOD REAR SPAR II -EflQO_SPAR 1/B BUOSIROOD 0 REUD - - COWLNG PATTERG 1732 PLYWOOD FRONTREAR SLOTS INTERLOCIG WITH MATING SLOTS IN BOLAIIEAT ROTH COWLINSO B PL WOOD 00 RA NO EDGESOWEA ERA EMSS AGOG SE0 C AWA ERAN AS SE M B ~1II1 B OS j1~114YjL7GSOAAREB WAC BASSWOOO SPAR AR SPARI AGEDD7 175 PLTWOOO -O REDO 3\RALSA PAIRING COWLING PATTERN 70 PTWGDSI FRONTREARPLANK SIUOATEDI/B BALSA GRASS LATOP N BOTTOM II HDRARIRS PLYWOOD COKE DARK GREENTRIM ERCESS MATERIAL AFTER_________ ASSEMBLY BOTR COWLINGS BUILD UP EPOG AROUNDRODART BELLORANK MOONTCU OGGAREI/IA DIA GRASS TUBE BIASING WIRE LOCATOR UP-RIGHT BELLEBANK BALSA PAIRB4G 3 DIHEDRALI1~ZDCI ING WIRE CONNECTION DETAIL CAL AIBRATION DAMPENER AIR C 0-I/B BRASS ROD 3RE PLYWOOD DISKALLRIISI/reA&SAE I1I11 0I23BSK EE BRACKET DETAL ILifEP 2-1i3f~i PRESS I/IN DIG BRASSPAGS I/GO DIG WIRE THRASLIP 5/32 BRASS TRAINS THEN COGERPHINT NWIRED- ALLOW 3/B OVERLAP TUBING INTO DRiLLEDTONING BEND WIRE ENDODYER WIRES SWEAT SOLDER BOLE N COG -PARALELL WITH RIGGING POLISH MODEL TO SCALESESIGNED N ORAWN RY FRANK W BEATTY NOTE RIGGING WIRES ARE CONSIDERED TO SE FUNCTIONAL MODEL DHOILO NOT BE FLOWN WITHOUT TREM ~ARIAT ION PETE INKED PLAN ST FRANG REATTT BR-SB ALL RIOGTS SHEET RESERVES 2 OP 0 0 C 0 CD 0 0 0 cii mounting block bracket firewall bulkhead 4A Access remote glow plug through scale hole bottom cowling Attach wine fuselage Tabs bulkhead separation lines should mate receptacles wing center section bulkheads should automatically align wing axes double-check alignments before epoxying wing llace Cement dowel-pin fin stabilizer mount assembly fuselage Install elevator pushrods throttle linkages check fieedom movement Fit Vs x /4 sheet balsa fairings way around wing root fuselage remainder stringers can added Fit shape cement fairing blocks fin-to-stabilizer joint Sand entire fuselage well cover using Stix-It Koverall two coats Sig Dope Install fairings undercarriage axle struts prefer use basswood such fairings because resists compression fatigue-type distortions model has hard landing Cover struts /2-ounce fiberglass Finish At point model assembled engine wheels hardware items installed weighed approximately 51 ounces hung nose-down about 50 suspended its desienated Center Gravity CC location reasonable assume completed model would weigh mid 60s require little no ballast balance properly seemed going well fatal error made time scrapped 40-year-old hobby type compressor bought new /2-horsepower compressor same time switched brands dope new sealers dopes thinned applied manner accustomed realized new paints thicker required great deal thinner fewer coats would required little old compressor would have bilked new compressor dutifully laid heavy stuff Suddenly aware now very heavy model gone decidedly tailheavy Several courses action including stripping paint off contemplated summer contest season dreadfully near decided go ahead finish model finishing process model should include number coats sanding sealer followed coats white dope wet-or-dry sanding after coat satisfied white can dress up model decorative markings Mask off racing registration numbers wings fuselage sides spray black Cover up 37s wings fuselage Mask around registration numbers wing top bottom surfaces /s tape Spray remaining enclosed areas gold Prepare pane glass coating very soapy water dry pane sprayed gold Pete NR-2Y lettering rudder cut out lifted glass applied model using thinner bonding agent protected clear dope overspray See description technique Hot Canary article March 1996 Model Aviation Talcum powder rubbed lightly over gold Pete NR-27 lettering use black Top-Elite Panel-Line Pen draw black pinstriping around lettering Protect clear dope overspray little previous success sort ink applications doped surfaces procedure made almost like writing note paper after talcum applied little trick am indebted information gleaned Windy Urtnowskis videotapes Various panel lines applied using talcum panel-line pen technique Simulated rivets screw heads applied Pilot Silver Marker Protect clear dope overspray Finally several coats Sig clear dope sprayed over entire model whole hand-rubbed compound polished Final Assembly Study drawings carefully install rigging wires INTRODUCING NW LINE PRECISION PROP NUTS AND HUBS Now greater choice quality Tru-Turn products 3 sizes PROP NUTS ranging 5/8 7/8 diameter 2 shapes available stock R/O engine thread sizes 5 sizes PROP HUBS ranging 1to 2 diameter 2 shapes new PROP NUTS PROP HUBS addition existing line precision aluminum spinners range 1-1/2 6 over 90 shapes sizes blade configurations new Tru-Turn PROP HUB line complimented extensive line over 70 adapter kits Tru-Turn makes adapter production R/O engine market have adapter problem. help phone call away. See hobby dealer call us direct. Made USA PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY ATILITY T LOOKS TY PO Box 836 South Houston Texas 77587 713 / 943-1867 Visit us internet ru-turnnet ws 52 Model Aviation s tail Details brackets axles sweated tubing fittings rigging wire junction should selfexplanatory fear axle bracket fittings would fail first landing Instead four original-design fittings top wing failed first flight system replaced sweat tubing hardware shown rigging setup holding up nicely rigging considered functional model should flown cockpit doors formed 010 sheet brass doors attached miniature pins hinge line drawn panel line pin protected clear dope Finish model adding remaining details such vibration dampeners exhaust stacks dummy carburetor manifold Contest rules require us install dummy pilot visible flight Mine painted using advice gleaned Don Typonds fabulous videotape Paint Pilot Figuresit looks great videotape should serious Scale builders library true-scale carved propeller adds wonders models appearance prop made four /32 basswood laminations Carve stain paint varnish bolt model will pleased results Flying There no question excess weight bad avoided lately have come around thinking also down side lightly loaded models thing get bounced around wind especially true doing taxi operations Such operations upwind side circle coming wind can troublesome have come realize heavier models enjoy some advantages Truly overweight models can flown successfully balanced properly have ample power Such models very unforgiving pilot errors however pilot errors no-no built originally intended ready-to-fly weight 60-65 ounces Pete will dream machine aspects flying ground-handling operations So fly 90-ounce Pete sure model balanced properly nose should bang down approximately five degrees suspended CG location Fly model shorter-than-normal linessay 52 feet long OS 32 provides ample power Pete flies quite fast smooth Takeoffs level flight routine matters High flight operations especially attempted significant amount wind will definitely put model risk 54 Model Aviation 4 stalling out disastrous consequences Power-on landings accomplished maintaining sufficient power speed fly airplane way ground Gradually reduce power altitude until model has touched down rolling its main gear reduce power bit use bit elevator set tail ground trick maintain enough speed avoid stalling model landing approach yet going slowly enough avoid ballooning back air upwind side landing approach taxi run am telling Pete going weigh 65 ouncesis During learning process flying overweight clipped-wing racer some really hard landings made model cartwheeled once Midwest contest its wheels dug circles soft dirt surfaces Much surprise no compression fatigue stress cracks have shown up part models surface So listen up Build light fly right k Beatty 2608 Pontoon Rd Granite City IL 62040 Custom Built R/CAirCr aft Engines Single Twin cylinder Gas Engines Sini948 Fox Manufactuf any has building worlds finest model airplane motors carry filltliie accessories model airplane engines including Fox 24 32 42 58 Fox new engines coming soon Call today free catalog look us up internet wwwfoxmanufacturingcom 501 646-1656 Fax 501 646-1757 5305 Towson Avenue Fort Smith AR 72901 e-mail foxmotors@aolcom /CO tRI Olt1ffA4aUchi Association RnR Products Presents Wayne Handleys new Oracle TURBO RAVEN 1/5 Scale Options 1 High performance 2 mu vinyl graphics masking Set includes Raven masking gold border fuse wing wheel pants Oracle graphics wing stab fuse Price $65 Option 2 Factory applied graphics DuPont Chroma paint Graphics t Gene Barton Spinner Just looking Turbo Raven screams - EXTREME Two months after its debut Stockton CA Airshow 11/98 Wayne new Turbo Raven set new time-toclimb world record sea level 3000 meters 9843 feet less minute 10 seconds Turbo Ravens sexy sleek lines generous proportions ie large fin/rudder area gigantic strip ailerons allowed us design fully molded great flying model deviating originals outline no STAND-OFF-SCALE 4- Light weight hollow-core wing technology utilizing epoxy glass & carbon fiber skin hinging both wing stabilizer 4- Removable wing stab already mounted 4- Carbon fiber gear strut its mount hardware place 4 Durable gel-coat surfacing red/white no shrink film used zontally split engine cowl realism service ability removing prop spinner 4 Control surface horns attached Introductory Price ping Handling 56 Model Aviation ff best model aitplane parts First Line Signature Series AIatIo 935 Tamarack Avenue San Jose CA 95128 Phone 408248-4642 Fax 408248-4642 Email slpstream@earthlinknet Website wwwslipstream-aviationcom
Edition: Model Aviation - 1999/10
Page Numbers: 46, 47, 48, 49, 50, 51, 52, 54, 56
Ho Benny CL Howards 1930s racer Scale competition 46 Model Aviation ank Beatty Pete rest Note hand-carved scale prop screw eye used check CG Tips gleaned Don Typonds Paint Pilot Figures tape Dummy manifold largest cutout helps hide otherwise Robins View Productions added realistic detail unsightly hole Stacks protrude slightly above openings Fullscale aircraft engineers faced challenging design performance requirements often can resolved compromise tradeoff same holds true model designers will make big difference model will designed built instance weekend sport model all-out competition machine Pete intended competition machine would participate future Nationals order enhance its true scale appearance control system leadout wires should enclosed wing recognized sharply curved fillet wing-to-fuselage joint would complicate locating bellcrank Space limitations clearances dictated use 2 /-inch short-span bellerank though might induce somewhat sensitive foreand-aft pitch-axis flight qualities As design work progressed noted bellcrank mounting plate must also serve rear undercarriage strutmounting plate raised concerns hard landing might buckle plate render control system inoperable fear has proved groundless Finally seemed wing center section should built separate unit order facilitate bellcrank rear undercarriage strut installations An alternate approach weekend sport model would locate 3- 3/2-inch long-span bellcrank top engine mounts between bulkheads 6 9 fuselage wing center section could built unit fears about undercarriage strut location would also eliminated course revised cutouts rerouting throttle elevator pushrod linkages would required Tradeoffs anyone CONSTRUCTION Though Pete especially difficult model build construction sequence important tail surfaces wing center section wing outer panels built first construction will delayed parts needed Stabilizer Elevators Thin scalelike strong fabric-covered tail surface structures can achieved building around internal /64 plywood core Cut /&i plywood cores stabilizer elevators Cement spars balsa ribs cores Soak four /j X a strips ammonia bind around structures outlines dry strips can cemented structures Install elevator horn Robart hinges Build up epoxy around hardware items plywood cutouts joints quite strong will need no other reinforcement Drill stabilizer spar use cyanoacrylate CyA glue attach /16 brass tubing holes rigging wire locators October 1999 47 Ready fuselage covering Author prefers realism sturdiness small basswood stringers sag after covering finish have applied Cover surfaces using Sig Stix-it Sig Koverall Sig clear dope set aside Fin/Rudder built same manner stabilizer elevators Fitting shaping rudder cone fairings must wait until can faired rear fuselage Wing Center Section Make up bellcrank mounting plate Bolt bellerank plate check freedom movement remove bellcrank plate center section will built upside down building board Pin /s X /2 x 7 wood strip board guide will help align center section bulkheads Fit bulkheads 6A 7A 8 onto bellcrank mounting plate Epoxy parts together before set up quickly pin parts building board using wood strip bulkhead cutouts ensure alignment Epoxy plywood ribs H bulkheads 5 9A assembly Plank exposed curved wing root fillets l/ balsa strips dry lift assembly board plank fillets top surface /s balsa strips CyA ywood rectangles bulkheads 6A 9A form boxlike receptacles will mate tabs bulkheads 6 9 wing assembled fuselage system will square wing fuselage set dihedral angle set incidence angle accurately rear landing gear struts will bound bellcrank mounting plate later key structural element Wing Outer Panels Cut out ribs false ribs spars leading trailing edges Block up pin aileron spar leading trailing edges building board Slip ribs slots Thread /s basswood spars through ribs Fit false ribs position CyA joints Lift assemblies board Fit 3/4 balsa tips wings Fit sheet balsa fillers mounting aileron horn details Box spars rigging wire locations basswood blocks Add wing tip weight Shape sand wing panels final shape Test-fit center section outer panels Mark matching cutouts port wing root H ribs remove material required leadout wire passageway Use extension drill bit pierce holes ribs leadout wires port outer wing panel Install tubing leadout wire guides wingtip Cut ailerons separate wing panels Drill spars CyA As diameter brass tubing holes rigging wire locators Set assemblies aside now Fuselage Obtain piece 3/-i diameter Reynolds aluminum tubing 26 inches long Make up plug assembly see drawing detail CyA end tubing plug end will slip cutout bulkhead 13 narrow tail end fuselage Carefully align CyA /s x s basswood strip onto bottom side tubing will keep bulkheads rotating out alignment being threaded onto tube Carefully mark bulkhead locations tube assembly will key tool used building straight round stringered fuselage am indebted Robert Underwoods article describing technique Model Airplane News March 1996 Cut out bulkheads Make up bind forward landing gear strut axle assembly bulkhead 4A Thread bulkheads onto tubing Carefully align bulkheads CyA top three stringers side place Before proceeding use wing center section make sure tabs fuselage formers mate corresponding cutouts wing center section bulkheads Epoxy engine mounts gussets / dowel locking pegs fuel tank 11/4 diameter plastic golf tube tailskid assembly position Use plastic golf tube allows us avoid making nonscale openings cowling providing passage through fuselage cooling air can exit out cockpit opening 48 Model Aviation center section Brodak three-wire belicrank temporarily installed photo purposes Starboard wing panel test-fitted center section Three panels joined fairing blocks installed bellcrank leadout wires place Note wing root curve Upper cowl 1/32 plywood Lower section /32 basswood planked over plywood bulkheadslighter balsa Photos author Graphic Design Jill Ann Cavanaugh Install remaining stringers above fuselage centerline Study plans drill temporarily fit two A6 diameter brass tubing rigging wire locators position between bulkheads 6 7 Cut out 1/32 plywood cowling soak ammonia snap tape position top fuselage dry mark drill holes rigging wire locators CyA cowling tubing place Make up head rest fairing block cement fuselage Add /8 balsa filler strips base cowling headrest Bolt engine engine mounts Make up install tntermediate throttle crank Temporarily tape wing center section fuselage order bend up fit I64 diameter music wire rear landing gear strut correct shape mate main gear axle Make up linkage throttle crank Set center section rear landing gear strut throttle linkage aside now Cowling Three plywood formers four plywood stringers assembled trued Cover upper structure A2 plywood cowling similar procedure used fuselage Plank lower cowling /32 x wood strips nose block three layers wood hollowed shown drawings Cowlings made hardwoods just smidgen difficult build just little heavier built balsa However hardwoods take paints beautifully ding resistance high openings can have thin crisp scalelike edges hold up use cowling break models firewall slides forward removal aligned held position four /s dowel guide pins firewall two blind mounting bolts hidden behind spinner Cover cowling /.ounce fiberglass set aside Wing Assembly wing will assembled upside down building board Use one-inch-thick block wood raise center section above building board surface Slip outer wing panels onto center section block tips up approximately t/ inch Epoxy joints dty lift assembly board Fit carve balsa leading trailing edge center section root fairing blocks shape Leave long enough extend fuselage past planking line fuselage planking can trimmed butt against root fillets Bind epoxy rear undercarriage struts mounting plate Thread leadout wires through wing bolt bellcrank throttle linkage mounting plate Bend up leadout loop ends now cover sharp ends tape prevent injuries Give entire wing assembly good final sanding Use Sig Stix Sig Koverall cover wing Brush two coats clear dope set assembly aside Assembly An unsightly nonscale cowling opening glow plug access avoided using remote glow plug connector Install its October 1999 49 Front view shows stringer notches cooling air duct opening Four /a dowel pins used align cowl Aluminum tubing guide passes through holes bulkheads ensures fuselage will alignment Bulkheads engine mount main landing gear struts some stringers have installed Note cooling air duct HOWARD PETE Type CL Scale Wingspan 4O/4 inches Engine 05 32 Flying weight 65 ounces approx Construction Built-up Covering/finish Sig Koverall Sig dope Tail surfaces have 1/ea plywood cores balsa ribs Strong light realistic fabric-covered structures 1-1/4 OIA COOLINGI/IS DIA GRASS TUBING AIR OUTLETRIGGING WIRE GUIDE IKMART PLASTIC GOLF CLUB TUBE 7IS ALL STRINGERS IA U B BASGWOOO I/B SOT S AL S I/B PlYWOOD rR PLYWOOD SEPARATIONSEPARATION LINE CUT AWAT AFTERTA8 ASSEMBLY TO CLEAR 2 ~1ET1ZT2II2 CARBURETOR DETAILS SIMMY ERRALIOTGA -iIE7STUCK N ROUST I/SO PLYWOOD SPLIT BIROR REMOVE ASTYPICAL SLOT DETAIL IN POURERS BEGS AFTERDAYRRI 7 TO INTERLOCK RITA SLOTG IN I/3D PLYWOOD COWLINSO COWLING GOLD I/B PLYIROOS LOCATIONS 5 DII I/A RAGSWOOS PLAGUING RECESS HUGO I SCALE PROP READ BOLTII ASOS IRESS COWLING STRINGERS I/B PLYWUOD COLOR SCHEME AIRCRAFT ALL AEGIS WRITE LETTERING & DETAILS AG NOTES Ii CENTER OPTRRGTTLE ONANR SNAWITY 031 BRAGS 0 READLOCR 001 K 1-I/SD PLYWOOb T XlCOOLING I MOTE BLOWIlAIR DUCT / PLUI CONNECTOR__Il ENGINE --- FASTA DI/UOIA SPINNER 0 B ASSOCIATESEBTENSION NO SOUlGRAFT RG-SCALE PROVIDES ACCESS TO REMOTE GLOW PLUG BASSWOOD PA RNBG~ MUDO WRE SAG C W ~12 BBA WE LANSING SEAR SETAIL NOT TO SCALE S-i/S 02 TANK RU--N ~-/e1/PJ~ P BP WOOB A~I-CGAAL GWOOD EDJlBEWALL BSR BA GAiSUBD A4z{jBASSROL ~2JjB BA GA - SE'- SE ABA OS NERO ______________REMOTE GDA PLUS K DON T INS ULOCY BUSYWOSA I_______________________I--- STRINGERS ORATTES CLARITY II/BB 3/1K BASSWOOD CoR TO 5/4 ALUMINUM TUBING BOTTOM SIDE DROWN FOR CLARITY -S/IA BASGWUOD PLSO IS GNAW PIT CRA IN TABNS OK FUSELAGE FORMER ALIGNMENT GUIDE SELLORANK B UNDER CARRIAGE B RAT MOAN SB PL WOOSREND DOORS I/4G S/B _________ BASGWOBO~5~ A/4~WELL. \ BY DOER OFFSET LAMINATES I/IAG I/N BALSA I/NM PLYWOOD CURE RI I/IA Al/B BALGA I/ B 5/5 BALSA UBLDITh\ V BLACK DATLIN K SS RNGERS SR DIG ELYATOR PUGRROOAXURNSMUSIC WIRE 1/4 DIA MUSIC WIRE4 1/5 PLYWOOD I- I/OPLYWGSD II REGO TAI SKID SUPPORT SISSASB III T7/2YIBRATON DAMPENERRR9NG WRE PTT ASS I/IA SIAI/lB WA BRASS TAKE BRAGS RODCRW N DINLE 7DB PR I/SDOIA MUSIC ARE RIGGING WIGESSLBTSDIN MISIC /ABLE /G DR IRE RIGGING MAGIC WIRE PlN- I/SD GIA9 SI/BDIA WILLIAMS BROSMAGIC AWE ""NUTOUT TRREA1~~ GOLDEN ARE WHEELS MO GDREAM 010 GUT BRAGG BRACKETSLIP ONTO ASLE RSOLDERI DOUBLE AROUND DRILL ROD SWEAT SOLDER FREE ENDS DRILL SOT & BEND AS SASAG ASSEMBLE N SOLGER SN ABLE AG GROWN NOT TO SCALE AVIATION I BOULE 51 -0 WINGSPAN /U SESIDWED B DRAWN BY PRANK BEUTTY WACO PLAN ST PRUNA BEATTY 1O-ISRB ALL RISITS SYCETIBRAS cii 0 0 D 0 - L4- II TJjUIJ II BRASS TUBING PITOT TUBE DETAILS SLACK 37"SK-ZYPITOT TARE NR-ZT IROD ILYIK BALSAGOLD WITHBLACK 37 ING WIRE LOCATORS _________________LEADING EGGEBLACK OOTLWESGOD-IN SPARD WITH SASSAUSO 70 OUNCE LEAD ANGLE RIG sj7 LE RiB 3voosr RALSA PRONTSPAR IWW B BASSWOOD REAR SPAR II -EflQO_SPAR 1/B BUOSIROOD 0 REUD - - COWLNG PATTERG 1732 PLYWOOD FRONTREAR SLOTS INTERLOCIG WITH MATING SLOTS IN BOLAIIEAT ROTH COWLINSO B PL WOOD 00 RA NO EDGESOWEA ERA EMSS AGOG SE0 C AWA ERAN AS SE M B ~1II1 B OS j1~114YjL7GSOAAREB WAC BASSWOOO SPAR AR SPARI AGEDD7 175 PLTWOOO -O REDO 3\RALSA PAIRING COWLING PATTERN 70 PTWGDSI FRONTREARPLANK SIUOATEDI/B BALSA GRASS LATOP N BOTTOM II HDRARIRS PLYWOOD COKE DARK GREENTRIM ERCESS MATERIAL AFTER_________ ASSEMBLY BOTR COWLINGS BUILD UP EPOG AROUNDRODART BELLORANK MOONTCU OGGAREI/IA DIA GRASS TUBE BIASING WIRE LOCATOR UP-RIGHT BELLEBANK BALSA PAIRB4G 3 DIHEDRALI1~ZDCI ING WIRE CONNECTION DETAIL CAL AIBRATION DAMPENER AIR C 0-I/B BRASS ROD 3RE PLYWOOD DISKALLRIISI/reA&SAE I1I11 0I23BSK EE BRACKET DETAL ILifEP 2-1i3f~i PRESS I/IN DIG BRASSPAGS I/GO DIG WIRE THRASLIP 5/32 BRASS TRAINS THEN COGERPHINT NWIRED- ALLOW 3/B OVERLAP TUBING INTO DRiLLEDTONING BEND WIRE ENDODYER WIRES SWEAT SOLDER BOLE N COG -PARALELL WITH RIGGING POLISH MODEL TO SCALESESIGNED N ORAWN RY FRANK W BEATTY NOTE RIGGING WIRES ARE CONSIDERED TO SE FUNCTIONAL MODEL DHOILO NOT BE FLOWN WITHOUT TREM ~ARIAT ION PETE INKED PLAN ST FRANG REATTT BR-SB ALL RIOGTS SHEET RESERVES 2 OP 0 0 C 0 CD 0 0 0 cii mounting block bracket firewall bulkhead 4A Access remote glow plug through scale hole bottom cowling Attach wine fuselage Tabs bulkhead separation lines should mate receptacles wing center section bulkheads should automatically align wing axes double-check alignments before epoxying wing llace Cement dowel-pin fin stabilizer mount assembly fuselage Install elevator pushrods throttle linkages check fieedom movement Fit Vs x /4 sheet balsa fairings way around wing root fuselage remainder stringers can added Fit shape cement fairing blocks fin-to-stabilizer joint Sand entire fuselage well cover using Stix-It Koverall two coats Sig Dope Install fairings undercarriage axle struts prefer use basswood such fairings because resists compression fatigue-type distortions model has hard landing Cover struts /2-ounce fiberglass Finish At point model assembled engine wheels hardware items installed weighed approximately 51 ounces hung nose-down about 50 suspended its desienated Center Gravity CC location reasonable assume completed model would weigh mid 60s require little no ballast balance properly seemed going well fatal error made time scrapped 40-year-old hobby type compressor bought new /2-horsepower compressor same time switched brands dope new sealers dopes thinned applied manner accustomed realized new paints thicker required great deal thinner fewer coats would required little old compressor would have bilked new compressor dutifully laid heavy stuff Suddenly aware now very heavy model gone decidedly tailheavy Several courses action including stripping paint off contemplated summer contest season dreadfully near decided go ahead finish model finishing process model should include number coats sanding sealer followed coats white dope wet-or-dry sanding after coat satisfied white can dress up model decorative markings Mask off racing registration numbers wings fuselage sides spray black Cover up 37s wings fuselage Mask around registration numbers wing top bottom surfaces /s tape Spray remaining enclosed areas gold Prepare pane glass coating very soapy water dry pane sprayed gold Pete NR-2Y lettering rudder cut out lifted glass applied model using thinner bonding agent protected clear dope overspray See description technique Hot Canary article March 1996 Model Aviation Talcum powder rubbed lightly over gold Pete NR-27 lettering use black Top-Elite Panel-Line Pen draw black pinstriping around lettering Protect clear dope overspray little previous success sort ink applications doped surfaces procedure made almost like writing note paper after talcum applied little trick am indebted information gleaned Windy Urtnowskis videotapes Various panel lines applied using talcum panel-line pen technique Simulated rivets screw heads applied Pilot Silver Marker Protect clear dope overspray Finally several coats Sig clear dope sprayed over entire model whole hand-rubbed compound polished Final Assembly Study drawings carefully install rigging wires INTRODUCING NW LINE PRECISION PROP NUTS AND HUBS Now greater choice quality Tru-Turn products 3 sizes PROP NUTS ranging 5/8 7/8 diameter 2 shapes available stock R/O engine thread sizes 5 sizes PROP HUBS ranging 1to 2 diameter 2 shapes new PROP NUTS PROP HUBS addition existing line precision aluminum spinners range 1-1/2 6 over 90 shapes sizes blade configurations new Tru-Turn PROP HUB line complimented extensive line over 70 adapter kits Tru-Turn makes adapter production R/O engine market have adapter problem. help phone call away. See hobby dealer call us direct. Made USA PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY ATILITY T LOOKS TY PO Box 836 South Houston Texas 77587 713 / 943-1867 Visit us internet ru-turnnet ws 52 Model Aviation s tail Details brackets axles sweated tubing fittings rigging wire junction should selfexplanatory fear axle bracket fittings would fail first landing Instead four original-design fittings top wing failed first flight system replaced sweat tubing hardware shown rigging setup holding up nicely rigging considered functional model should flown cockpit doors formed 010 sheet brass doors attached miniature pins hinge line drawn panel line pin protected clear dope Finish model adding remaining details such vibration dampeners exhaust stacks dummy carburetor manifold Contest rules require us install dummy pilot visible flight Mine painted using advice gleaned Don Typonds fabulous videotape Paint Pilot Figuresit looks great videotape should serious Scale builders library true-scale carved propeller adds wonders models appearance prop made four /32 basswood laminations Carve stain paint varnish bolt model will pleased results Flying There no question excess weight bad avoided lately have come around thinking also down side lightly loaded models thing get bounced around wind especially true doing taxi operations Such operations upwind side circle coming wind can troublesome have come realize heavier models enjoy some advantages Truly overweight models can flown successfully balanced properly have ample power Such models very unforgiving pilot errors however pilot errors no-no built originally intended ready-to-fly weight 60-65 ounces Pete will dream machine aspects flying ground-handling operations So fly 90-ounce Pete sure model balanced properly nose should bang down approximately five degrees suspended CG location Fly model shorter-than-normal linessay 52 feet long OS 32 provides ample power Pete flies quite fast smooth Takeoffs level flight routine matters High flight operations especially attempted significant amount wind will definitely put model risk 54 Model Aviation 4 stalling out disastrous consequences Power-on landings accomplished maintaining sufficient power speed fly airplane way ground Gradually reduce power altitude until model has touched down rolling its main gear reduce power bit use bit elevator set tail ground trick maintain enough speed avoid stalling model landing approach yet going slowly enough avoid ballooning back air upwind side landing approach taxi run am telling Pete going weigh 65 ouncesis During learning process flying overweight clipped-wing racer some really hard landings made model cartwheeled once Midwest contest its wheels dug circles soft dirt surfaces Much surprise no compression fatigue stress cracks have shown up part models surface So listen up Build light fly right k Beatty 2608 Pontoon Rd Granite City IL 62040 Custom Built R/CAirCr aft Engines Single Twin cylinder Gas Engines Sini948 Fox Manufactuf any has building worlds finest model airplane motors carry filltliie accessories model airplane engines including Fox 24 32 42 58 Fox new engines coming soon Call today free catalog look us up internet wwwfoxmanufacturingcom 501 646-1656 Fax 501 646-1757 5305 Towson Avenue Fort Smith AR 72901 e-mail foxmotors@aolcom /CO tRI Olt1ffA4aUchi Association RnR Products Presents Wayne Handleys new Oracle TURBO RAVEN 1/5 Scale Options 1 High performance 2 mu vinyl graphics masking Set includes Raven masking gold border fuse wing wheel pants Oracle graphics wing stab fuse Price $65 Option 2 Factory applied graphics DuPont Chroma paint Graphics t Gene Barton Spinner Just looking Turbo Raven screams - EXTREME Two months after its debut Stockton CA Airshow 11/98 Wayne new Turbo Raven set new time-toclimb world record sea level 3000 meters 9843 feet less minute 10 seconds Turbo Ravens sexy sleek lines generous proportions ie large fin/rudder area gigantic strip ailerons allowed us design fully molded great flying model deviating originals outline no STAND-OFF-SCALE 4- Light weight hollow-core wing technology utilizing epoxy glass & carbon fiber skin hinging both wing stabilizer 4- Removable wing stab already mounted 4- Carbon fiber gear strut its mount hardware place 4 Durable gel-coat surfacing red/white no shrink film used zontally split engine cowl realism service ability removing prop spinner 4 Control surface horns attached Introductory Price ping Handling 56 Model Aviation ff best model aitplane parts First Line Signature Series AIatIo 935 Tamarack Avenue San Jose CA 95128 Phone 408248-4642 Fax 408248-4642 Email slpstream@earthlinknet Website wwwslipstream-aviationcom
Edition: Model Aviation - 1999/10
Page Numbers: 46, 47, 48, 49, 50, 51, 52, 54, 56
Ho Benny CL Howards 1930s racer Scale competition 46 Model Aviation ank Beatty Pete rest Note hand-carved scale prop screw eye used check CG Tips gleaned Don Typonds Paint Pilot Figures tape Dummy manifold largest cutout helps hide otherwise Robins View Productions added realistic detail unsightly hole Stacks protrude slightly above openings Fullscale aircraft engineers faced challenging design performance requirements often can resolved compromise tradeoff same holds true model designers will make big difference model will designed built instance weekend sport model all-out competition machine Pete intended competition machine would participate future Nationals order enhance its true scale appearance control system leadout wires should enclosed wing recognized sharply curved fillet wing-to-fuselage joint would complicate locating bellcrank Space limitations clearances dictated use 2 /-inch short-span bellerank though might induce somewhat sensitive foreand-aft pitch-axis flight qualities As design work progressed noted bellcrank mounting plate must also serve rear undercarriage strutmounting plate raised concerns hard landing might buckle plate render control system inoperable fear has proved groundless Finally seemed wing center section should built separate unit order facilitate bellcrank rear undercarriage strut installations An alternate approach weekend sport model would locate 3- 3/2-inch long-span bellcrank top engine mounts between bulkheads 6 9 fuselage wing center section could built unit fears about undercarriage strut location would also eliminated course revised cutouts rerouting throttle elevator pushrod linkages would required Tradeoffs anyone CONSTRUCTION Though Pete especially difficult model build construction sequence important tail surfaces wing center section wing outer panels built first construction will delayed parts needed Stabilizer Elevators Thin scalelike strong fabric-covered tail surface structures can achieved building around internal /64 plywood core Cut /&i plywood cores stabilizer elevators Cement spars balsa ribs cores Soak four /j X a strips ammonia bind around structures outlines dry strips can cemented structures Install elevator horn Robart hinges Build up epoxy around hardware items plywood cutouts joints quite strong will need no other reinforcement Drill stabilizer spar use cyanoacrylate CyA glue attach /16 brass tubing holes rigging wire locators October 1999 47 Ready fuselage covering Author prefers realism sturdiness small basswood stringers sag after covering finish have applied Cover surfaces using Sig Stix-it Sig Koverall Sig clear dope set aside Fin/Rudder built same manner stabilizer elevators Fitting shaping rudder cone fairings must wait until can faired rear fuselage Wing Center Section Make up bellcrank mounting plate Bolt bellerank plate check freedom movement remove bellcrank plate center section will built upside down building board Pin /s X /2 x 7 wood strip board guide will help align center section bulkheads Fit bulkheads 6A 7A 8 onto bellcrank mounting plate Epoxy parts together before set up quickly pin parts building board using wood strip bulkhead cutouts ensure alignment Epoxy plywood ribs H bulkheads 5 9A assembly Plank exposed curved wing root fillets l/ balsa strips dry lift assembly board plank fillets top surface /s balsa strips CyA ywood rectangles bulkheads 6A 9A form boxlike receptacles will mate tabs bulkheads 6 9 wing assembled fuselage system will square wing fuselage set dihedral angle set incidence angle accurately rear landing gear struts will bound bellcrank mounting plate later key structural element Wing Outer Panels Cut out ribs false ribs spars leading trailing edges Block up pin aileron spar leading trailing edges building board Slip ribs slots Thread /s basswood spars through ribs Fit false ribs position CyA joints Lift assemblies board Fit 3/4 balsa tips wings Fit sheet balsa fillers mounting aileron horn details Box spars rigging wire locations basswood blocks Add wing tip weight Shape sand wing panels final shape Test-fit center section outer panels Mark matching cutouts port wing root H ribs remove material required leadout wire passageway Use extension drill bit pierce holes ribs leadout wires port outer wing panel Install tubing leadout wire guides wingtip Cut ailerons separate wing panels Drill spars CyA As diameter brass tubing holes rigging wire locators Set assemblies aside now Fuselage Obtain piece 3/-i diameter Reynolds aluminum tubing 26 inches long Make up plug assembly see drawing detail CyA end tubing plug end will slip cutout bulkhead 13 narrow tail end fuselage Carefully align CyA /s x s basswood strip onto bottom side tubing will keep bulkheads rotating out alignment being threaded onto tube Carefully mark bulkhead locations tube assembly will key tool used building straight round stringered fuselage am indebted Robert Underwoods article describing technique Model Airplane News March 1996 Cut out bulkheads Make up bind forward landing gear strut axle assembly bulkhead 4A Thread bulkheads onto tubing Carefully align bulkheads CyA top three stringers side place Before proceeding use wing center section make sure tabs fuselage formers mate corresponding cutouts wing center section bulkheads Epoxy engine mounts gussets / dowel locking pegs fuel tank 11/4 diameter plastic golf tube tailskid assembly position Use plastic golf tube allows us avoid making nonscale openings cowling providing passage through fuselage cooling air can exit out cockpit opening 48 Model Aviation center section Brodak three-wire belicrank temporarily installed photo purposes Starboard wing panel test-fitted center section Three panels joined fairing blocks installed bellcrank leadout wires place Note wing root curve Upper cowl 1/32 plywood Lower section /32 basswood planked over plywood bulkheadslighter balsa Photos author Graphic Design Jill Ann Cavanaugh Install remaining stringers above fuselage centerline Study plans drill temporarily fit two A6 diameter brass tubing rigging wire locators position between bulkheads 6 7 Cut out 1/32 plywood cowling soak ammonia snap tape position top fuselage dry mark drill holes rigging wire locators CyA cowling tubing place Make up head rest fairing block cement fuselage Add /8 balsa filler strips base cowling headrest Bolt engine engine mounts Make up install tntermediate throttle crank Temporarily tape wing center section fuselage order bend up fit I64 diameter music wire rear landing gear strut correct shape mate main gear axle Make up linkage throttle crank Set center section rear landing gear strut throttle linkage aside now Cowling Three plywood formers four plywood stringers assembled trued Cover upper structure A2 plywood cowling similar procedure used fuselage Plank lower cowling /32 x wood strips nose block three layers wood hollowed shown drawings Cowlings made hardwoods just smidgen difficult build just little heavier built balsa However hardwoods take paints beautifully ding resistance high openings can have thin crisp scalelike edges hold up use cowling break models firewall slides forward removal aligned held position four /s dowel guide pins firewall two blind mounting bolts hidden behind spinner Cover cowling /.ounce fiberglass set aside Wing Assembly wing will assembled upside down building board Use one-inch-thick block wood raise center section above building board surface Slip outer wing panels onto center section block tips up approximately t/ inch Epoxy joints dty lift assembly board Fit carve balsa leading trailing edge center section root fairing blocks shape Leave long enough extend fuselage past planking line fuselage planking can trimmed butt against root fillets Bind epoxy rear undercarriage struts mounting plate Thread leadout wires through wing bolt bellcrank throttle linkage mounting plate Bend up leadout loop ends now cover sharp ends tape prevent injuries Give entire wing assembly good final sanding Use Sig Stix Sig Koverall cover wing Brush two coats clear dope set assembly aside Assembly An unsightly nonscale cowling opening glow plug access avoided using remote glow plug connector Install its October 1999 49 Front view shows stringer notches cooling air duct opening Four /a dowel pins used align cowl Aluminum tubing guide passes through holes bulkheads ensures fuselage will alignment Bulkheads engine mount main landing gear struts some stringers have installed Note cooling air duct HOWARD PETE Type CL Scale Wingspan 4O/4 inches Engine 05 32 Flying weight 65 ounces approx Construction Built-up Covering/finish Sig Koverall Sig dope Tail surfaces have 1/ea plywood cores balsa ribs Strong light realistic fabric-covered structures 1-1/4 OIA COOLINGI/IS DIA GRASS TUBING AIR OUTLETRIGGING WIRE GUIDE IKMART PLASTIC GOLF CLUB TUBE 7IS ALL STRINGERS IA U B BASGWOOO I/B SOT S AL S I/B PlYWOOD rR PLYWOOD SEPARATIONSEPARATION LINE CUT AWAT AFTERTA8 ASSEMBLY TO CLEAR 2 ~1ET1ZT2II2 CARBURETOR DETAILS SIMMY ERRALIOTGA -iIE7STUCK N ROUST I/SO PLYWOOD SPLIT BIROR REMOVE ASTYPICAL SLOT DETAIL IN POURERS BEGS AFTERDAYRRI 7 TO INTERLOCK RITA SLOTG IN I/3D PLYWOOD COWLINSO COWLING GOLD I/B PLYIROOS LOCATIONS 5 DII I/A RAGSWOOS PLAGUING RECESS HUGO I SCALE PROP READ BOLTII ASOS IRESS COWLING STRINGERS I/B PLYWUOD COLOR SCHEME AIRCRAFT ALL AEGIS WRITE LETTERING & DETAILS AG NOTES Ii CENTER OPTRRGTTLE ONANR SNAWITY 031 BRAGS 0 READLOCR 001 K 1-I/SD PLYWOOb T XlCOOLING I MOTE BLOWIlAIR DUCT / PLUI CONNECTOR__Il ENGINE --- FASTA DI/UOIA SPINNER 0 B ASSOCIATESEBTENSION NO SOUlGRAFT RG-SCALE PROVIDES ACCESS TO REMOTE GLOW PLUG BASSWOOD PA RNBG~ MUDO WRE SAG C W ~12 BBA WE LANSING SEAR SETAIL NOT TO SCALE S-i/S 02 TANK RU--N ~-/e1/PJ~ P BP WOOB A~I-CGAAL GWOOD EDJlBEWALL BSR BA GAiSUBD A4z{jBASSROL ~2JjB BA GA - SE'- SE ABA OS NERO ______________REMOTE GDA PLUS K DON T INS ULOCY BUSYWOSA I_______________________I--- STRINGERS ORATTES CLARITY II/BB 3/1K BASSWOOD CoR TO 5/4 ALUMINUM TUBING BOTTOM SIDE DROWN FOR CLARITY -S/IA BASGWUOD PLSO IS GNAW PIT CRA IN TABNS OK FUSELAGE FORMER ALIGNMENT GUIDE SELLORANK B UNDER CARRIAGE B RAT MOAN SB PL WOOSREND DOORS I/4G S/B _________ BASGWOBO~5~ A/4~WELL. \ BY DOER OFFSET LAMINATES I/IAG I/N BALSA I/NM PLYWOOD CURE RI I/IA Al/B BALGA I/ B 5/5 BALSA UBLDITh\ V BLACK DATLIN K SS RNGERS SR DIG ELYATOR PUGRROOAXURNSMUSIC WIRE 1/4 DIA MUSIC WIRE4 1/5 PLYWOOD I- I/OPLYWGSD II REGO TAI SKID SUPPORT SISSASB III T7/2YIBRATON DAMPENERRR9NG WRE PTT ASS I/IA SIAI/lB WA BRASS TAKE BRAGS RODCRW N DINLE 7DB PR I/SDOIA MUSIC ARE RIGGING WIGESSLBTSDIN MISIC /ABLE /G DR IRE RIGGING MAGIC WIRE PlN- I/SD GIA9 SI/BDIA WILLIAMS BROSMAGIC AWE ""NUTOUT TRREA1~~ GOLDEN ARE WHEELS MO GDREAM 010 GUT BRAGG BRACKETSLIP ONTO ASLE RSOLDERI DOUBLE AROUND DRILL ROD SWEAT SOLDER FREE ENDS DRILL SOT & BEND AS SASAG ASSEMBLE N SOLGER SN ABLE AG GROWN NOT TO SCALE AVIATION I BOULE 51 -0 WINGSPAN /U SESIDWED B DRAWN BY PRANK BEUTTY WACO PLAN ST PRUNA BEATTY 1O-ISRB ALL RISITS SYCETIBRAS cii 0 0 D 0 - L4- II TJjUIJ II BRASS TUBING PITOT TUBE DETAILS SLACK 37"SK-ZYPITOT TARE NR-ZT IROD ILYIK BALSAGOLD WITHBLACK 37 ING WIRE LOCATORS _________________LEADING EGGEBLACK OOTLWESGOD-IN SPARD WITH SASSAUSO 70 OUNCE LEAD ANGLE RIG sj7 LE RiB 3voosr RALSA PRONTSPAR IWW B BASSWOOD REAR SPAR II -EflQO_SPAR 1/B BUOSIROOD 0 REUD - - COWLNG PATTERG 1732 PLYWOOD FRONTREAR SLOTS INTERLOCIG WITH MATING SLOTS IN BOLAIIEAT ROTH COWLINSO B PL WOOD 00 RA NO EDGESOWEA ERA EMSS AGOG SE0 C AWA ERAN AS SE M B ~1II1 B OS j1~114YjL7GSOAAREB WAC BASSWOOO SPAR AR SPARI AGEDD7 175 PLTWOOO -O REDO 3\RALSA PAIRING COWLING PATTERN 70 PTWGDSI FRONTREARPLANK SIUOATEDI/B BALSA GRASS LATOP N BOTTOM II HDRARIRS PLYWOOD COKE DARK GREENTRIM ERCESS MATERIAL AFTER_________ ASSEMBLY BOTR COWLINGS BUILD UP EPOG AROUNDRODART BELLORANK MOONTCU OGGAREI/IA DIA GRASS TUBE BIASING WIRE LOCATOR UP-RIGHT BELLEBANK BALSA PAIRB4G 3 DIHEDRALI1~ZDCI ING WIRE CONNECTION DETAIL CAL AIBRATION DAMPENER AIR C 0-I/B BRASS ROD 3RE PLYWOOD DISKALLRIISI/reA&SAE I1I11 0I23BSK EE BRACKET DETAL ILifEP 2-1i3f~i PRESS I/IN DIG BRASSPAGS I/GO DIG WIRE THRASLIP 5/32 BRASS TRAINS THEN COGERPHINT NWIRED- ALLOW 3/B OVERLAP TUBING INTO DRiLLEDTONING BEND WIRE ENDODYER WIRES SWEAT SOLDER BOLE N COG -PARALELL WITH RIGGING POLISH MODEL TO SCALESESIGNED N ORAWN RY FRANK W BEATTY NOTE RIGGING WIRES ARE CONSIDERED TO SE FUNCTIONAL MODEL DHOILO NOT BE FLOWN WITHOUT TREM ~ARIAT ION PETE INKED PLAN ST FRANG REATTT BR-SB ALL RIOGTS SHEET RESERVES 2 OP 0 0 C 0 CD 0 0 0 cii mounting block bracket firewall bulkhead 4A Access remote glow plug through scale hole bottom cowling Attach wine fuselage Tabs bulkhead separation lines should mate receptacles wing center section bulkheads should automatically align wing axes double-check alignments before epoxying wing llace Cement dowel-pin fin stabilizer mount assembly fuselage Install elevator pushrods throttle linkages check fieedom movement Fit Vs x /4 sheet balsa fairings way around wing root fuselage remainder stringers can added Fit shape cement fairing blocks fin-to-stabilizer joint Sand entire fuselage well cover using Stix-It Koverall two coats Sig Dope Install fairings undercarriage axle struts prefer use basswood such fairings because resists compression fatigue-type distortions model has hard landing Cover struts /2-ounce fiberglass Finish At point model assembled engine wheels hardware items installed weighed approximately 51 ounces hung nose-down about 50 suspended its desienated Center Gravity CC location reasonable assume completed model would weigh mid 60s require little no ballast balance properly seemed going well fatal error made time scrapped 40-year-old hobby type compressor bought new /2-horsepower compressor same time switched brands dope new sealers dopes thinned applied manner accustomed realized new paints thicker required great deal thinner fewer coats would required little old compressor would have bilked new compressor dutifully laid heavy stuff Suddenly aware now very heavy model gone decidedly tailheavy Several courses action including stripping paint off contemplated summer contest season dreadfully near decided go ahead finish model finishing process model should include number coats sanding sealer followed coats white dope wet-or-dry sanding after coat satisfied white can dress up model decorative markings Mask off racing registration numbers wings fuselage sides spray black Cover up 37s wings fuselage Mask around registration numbers wing top bottom surfaces /s tape Spray remaining enclosed areas gold Prepare pane glass coating very soapy water dry pane sprayed gold Pete NR-2Y lettering rudder cut out lifted glass applied model using thinner bonding agent protected clear dope overspray See description technique Hot Canary article March 1996 Model Aviation Talcum powder rubbed lightly over gold Pete NR-27 lettering use black Top-Elite Panel-Line Pen draw black pinstriping around lettering Protect clear dope overspray little previous success sort ink applications doped surfaces procedure made almost like writing note paper after talcum applied little trick am indebted information gleaned Windy Urtnowskis videotapes Various panel lines applied using talcum panel-line pen technique Simulated rivets screw heads applied Pilot Silver Marker Protect clear dope overspray Finally several coats Sig clear dope sprayed over entire model whole hand-rubbed compound polished Final Assembly Study drawings carefully install rigging wires INTRODUCING NW LINE PRECISION PROP NUTS AND HUBS Now greater choice quality Tru-Turn products 3 sizes PROP NUTS ranging 5/8 7/8 diameter 2 shapes available stock R/O engine thread sizes 5 sizes PROP HUBS ranging 1to 2 diameter 2 shapes new PROP NUTS PROP HUBS addition existing line precision aluminum spinners range 1-1/2 6 over 90 shapes sizes blade configurations new Tru-Turn PROP HUB line complimented extensive line over 70 adapter kits Tru-Turn makes adapter production R/O engine market have adapter problem. help phone call away. See hobby dealer call us direct. Made USA PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY ATILITY T LOOKS TY PO Box 836 South Houston Texas 77587 713 / 943-1867 Visit us internet ru-turnnet ws 52 Model Aviation s tail Details brackets axles sweated tubing fittings rigging wire junction should selfexplanatory fear axle bracket fittings would fail first landing Instead four original-design fittings top wing failed first flight system replaced sweat tubing hardware shown rigging setup holding up nicely rigging considered functional model should flown cockpit doors formed 010 sheet brass doors attached miniature pins hinge line drawn panel line pin protected clear dope Finish model adding remaining details such vibration dampeners exhaust stacks dummy carburetor manifold Contest rules require us install dummy pilot visible flight Mine painted using advice gleaned Don Typonds fabulous videotape Paint Pilot Figuresit looks great videotape should serious Scale builders library true-scale carved propeller adds wonders models appearance prop made four /32 basswood laminations Carve stain paint varnish bolt model will pleased results Flying There no question excess weight bad avoided lately have come around thinking also down side lightly loaded models thing get bounced around wind especially true doing taxi operations Such operations upwind side circle coming wind can troublesome have come realize heavier models enjoy some advantages Truly overweight models can flown successfully balanced properly have ample power Such models very unforgiving pilot errors however pilot errors no-no built originally intended ready-to-fly weight 60-65 ounces Pete will dream machine aspects flying ground-handling operations So fly 90-ounce Pete sure model balanced properly nose should bang down approximately five degrees suspended CG location Fly model shorter-than-normal linessay 52 feet long OS 32 provides ample power Pete flies quite fast smooth Takeoffs level flight routine matters High flight operations especially attempted significant amount wind will definitely put model risk 54 Model Aviation 4 stalling out disastrous consequences Power-on landings accomplished maintaining sufficient power speed fly airplane way ground Gradually reduce power altitude until model has touched down rolling its main gear reduce power bit use bit elevator set tail ground trick maintain enough speed avoid stalling model landing approach yet going slowly enough avoid ballooning back air upwind side landing approach taxi run am telling Pete going weigh 65 ouncesis During learning process flying overweight clipped-wing racer some really hard landings made model cartwheeled once Midwest contest its wheels dug circles soft dirt surfaces Much surprise no compression fatigue stress cracks have shown up part models surface So listen up Build light fly right k Beatty 2608 Pontoon Rd Granite City IL 62040 Custom Built R/CAirCr aft Engines Single Twin cylinder Gas Engines Sini948 Fox Manufactuf any has building worlds finest model airplane motors carry filltliie accessories model airplane engines including Fox 24 32 42 58 Fox new engines coming soon Call today free catalog look us up internet wwwfoxmanufacturingcom 501 646-1656 Fax 501 646-1757 5305 Towson Avenue Fort Smith AR 72901 e-mail foxmotors@aolcom /CO tRI Olt1ffA4aUchi Association RnR Products Presents Wayne Handleys new Oracle TURBO RAVEN 1/5 Scale Options 1 High performance 2 mu vinyl graphics masking Set includes Raven masking gold border fuse wing wheel pants Oracle graphics wing stab fuse Price $65 Option 2 Factory applied graphics DuPont Chroma paint Graphics t Gene Barton Spinner Just looking Turbo Raven screams - EXTREME Two months after its debut Stockton CA Airshow 11/98 Wayne new Turbo Raven set new time-toclimb world record sea level 3000 meters 9843 feet less minute 10 seconds Turbo Ravens sexy sleek lines generous proportions ie large fin/rudder area gigantic strip ailerons allowed us design fully molded great flying model deviating originals outline no STAND-OFF-SCALE 4- Light weight hollow-core wing technology utilizing epoxy glass & carbon fiber skin hinging both wing stabilizer 4- Removable wing stab already mounted 4- Carbon fiber gear strut its mount hardware place 4 Durable gel-coat surfacing red/white no shrink film used zontally split engine cowl realism service ability removing prop spinner 4 Control surface horns attached Introductory Price ping Handling 56 Model Aviation ff best model aitplane parts First Line Signature Series AIatIo 935 Tamarack Avenue San Jose CA 95128 Phone 408248-4642 Fax 408248-4642 Email slpstream@earthlinknet Website wwwslipstream-aviationcom
Edition: Model Aviation - 1999/10
Page Numbers: 46, 47, 48, 49, 50, 51, 52, 54, 56
Ho Benny CL Howards 1930s racer Scale competition 46 Model Aviation ank Beatty Pete rest Note hand-carved scale prop screw eye used check CG Tips gleaned Don Typonds Paint Pilot Figures tape Dummy manifold largest cutout helps hide otherwise Robins View Productions added realistic detail unsightly hole Stacks protrude slightly above openings Fullscale aircraft engineers faced challenging design performance requirements often can resolved compromise tradeoff same holds true model designers will make big difference model will designed built instance weekend sport model all-out competition machine Pete intended competition machine would participate future Nationals order enhance its true scale appearance control system leadout wires should enclosed wing recognized sharply curved fillet wing-to-fuselage joint would complicate locating bellcrank Space limitations clearances dictated use 2 /-inch short-span bellerank though might induce somewhat sensitive foreand-aft pitch-axis flight qualities As design work progressed noted bellcrank mounting plate must also serve rear undercarriage strutmounting plate raised concerns hard landing might buckle plate render control system inoperable fear has proved groundless Finally seemed wing center section should built separate unit order facilitate bellcrank rear undercarriage strut installations An alternate approach weekend sport model would locate 3- 3/2-inch long-span bellcrank top engine mounts between bulkheads 6 9 fuselage wing center section could built unit fears about undercarriage strut location would also eliminated course revised cutouts rerouting throttle elevator pushrod linkages would required Tradeoffs anyone CONSTRUCTION Though Pete especially difficult model build construction sequence important tail surfaces wing center section wing outer panels built first construction will delayed parts needed Stabilizer Elevators Thin scalelike strong fabric-covered tail surface structures can achieved building around internal /64 plywood core Cut /&i plywood cores stabilizer elevators Cement spars balsa ribs cores Soak four /j X a strips ammonia bind around structures outlines dry strips can cemented structures Install elevator horn Robart hinges Build up epoxy around hardware items plywood cutouts joints quite strong will need no other reinforcement Drill stabilizer spar use cyanoacrylate CyA glue attach /16 brass tubing holes rigging wire locators October 1999 47 Ready fuselage covering Author prefers realism sturdiness small basswood stringers sag after covering finish have applied Cover surfaces using Sig Stix-it Sig Koverall Sig clear dope set aside Fin/Rudder built same manner stabilizer elevators Fitting shaping rudder cone fairings must wait until can faired rear fuselage Wing Center Section Make up bellcrank mounting plate Bolt bellerank plate check freedom movement remove bellcrank plate center section will built upside down building board Pin /s X /2 x 7 wood strip board guide will help align center section bulkheads Fit bulkheads 6A 7A 8 onto bellcrank mounting plate Epoxy parts together before set up quickly pin parts building board using wood strip bulkhead cutouts ensure alignment Epoxy plywood ribs H bulkheads 5 9A assembly Plank exposed curved wing root fillets l/ balsa strips dry lift assembly board plank fillets top surface /s balsa strips CyA ywood rectangles bulkheads 6A 9A form boxlike receptacles will mate tabs bulkheads 6 9 wing assembled fuselage system will square wing fuselage set dihedral angle set incidence angle accurately rear landing gear struts will bound bellcrank mounting plate later key structural element Wing Outer Panels Cut out ribs false ribs spars leading trailing edges Block up pin aileron spar leading trailing edges building board Slip ribs slots Thread /s basswood spars through ribs Fit false ribs position CyA joints Lift assemblies board Fit 3/4 balsa tips wings Fit sheet balsa fillers mounting aileron horn details Box spars rigging wire locations basswood blocks Add wing tip weight Shape sand wing panels final shape Test-fit center section outer panels Mark matching cutouts port wing root H ribs remove material required leadout wire passageway Use extension drill bit pierce holes ribs leadout wires port outer wing panel Install tubing leadout wire guides wingtip Cut ailerons separate wing panels Drill spars CyA As diameter brass tubing holes rigging wire locators Set assemblies aside now Fuselage Obtain piece 3/-i diameter Reynolds aluminum tubing 26 inches long Make up plug assembly see drawing detail CyA end tubing plug end will slip cutout bulkhead 13 narrow tail end fuselage Carefully align CyA /s x s basswood strip onto bottom side tubing will keep bulkheads rotating out alignment being threaded onto tube Carefully mark bulkhead locations tube assembly will key tool used building straight round stringered fuselage am indebted Robert Underwoods article describing technique Model Airplane News March 1996 Cut out bulkheads Make up bind forward landing gear strut axle assembly bulkhead 4A Thread bulkheads onto tubing Carefully align bulkheads CyA top three stringers side place Before proceeding use wing center section make sure tabs fuselage formers mate corresponding cutouts wing center section bulkheads Epoxy engine mounts gussets / dowel locking pegs fuel tank 11/4 diameter plastic golf tube tailskid assembly position Use plastic golf tube allows us avoid making nonscale openings cowling providing passage through fuselage cooling air can exit out cockpit opening 48 Model Aviation center section Brodak three-wire belicrank temporarily installed photo purposes Starboard wing panel test-fitted center section Three panels joined fairing blocks installed bellcrank leadout wires place Note wing root curve Upper cowl 1/32 plywood Lower section /32 basswood planked over plywood bulkheadslighter balsa Photos author Graphic Design Jill Ann Cavanaugh Install remaining stringers above fuselage centerline Study plans drill temporarily fit two A6 diameter brass tubing rigging wire locators position between bulkheads 6 7 Cut out 1/32 plywood cowling soak ammonia snap tape position top fuselage dry mark drill holes rigging wire locators CyA cowling tubing place Make up head rest fairing block cement fuselage Add /8 balsa filler strips base cowling headrest Bolt engine engine mounts Make up install tntermediate throttle crank Temporarily tape wing center section fuselage order bend up fit I64 diameter music wire rear landing gear strut correct shape mate main gear axle Make up linkage throttle crank Set center section rear landing gear strut throttle linkage aside now Cowling Three plywood formers four plywood stringers assembled trued Cover upper structure A2 plywood cowling similar procedure used fuselage Plank lower cowling /32 x wood strips nose block three layers wood hollowed shown drawings Cowlings made hardwoods just smidgen difficult build just little heavier built balsa However hardwoods take paints beautifully ding resistance high openings can have thin crisp scalelike edges hold up use cowling break models firewall slides forward removal aligned held position four /s dowel guide pins firewall two blind mounting bolts hidden behind spinner Cover cowling /.ounce fiberglass set aside Wing Assembly wing will assembled upside down building board Use one-inch-thick block wood raise center section above building board surface Slip outer wing panels onto center section block tips up approximately t/ inch Epoxy joints dty lift assembly board Fit carve balsa leading trailing edge center section root fairing blocks shape Leave long enough extend fuselage past planking line fuselage planking can trimmed butt against root fillets Bind epoxy rear undercarriage struts mounting plate Thread leadout wires through wing bolt bellcrank throttle linkage mounting plate Bend up leadout loop ends now cover sharp ends tape prevent injuries Give entire wing assembly good final sanding Use Sig Stix Sig Koverall cover wing Brush two coats clear dope set assembly aside Assembly An unsightly nonscale cowling opening glow plug access avoided using remote glow plug connector Install its October 1999 49 Front view shows stringer notches cooling air duct opening Four /a dowel pins used align cowl Aluminum tubing guide passes through holes bulkheads ensures fuselage will alignment Bulkheads engine mount main landing gear struts some stringers have installed Note cooling air duct HOWARD PETE Type CL Scale Wingspan 4O/4 inches Engine 05 32 Flying weight 65 ounces approx Construction Built-up Covering/finish Sig Koverall Sig dope Tail surfaces have 1/ea plywood cores balsa ribs Strong light realistic fabric-covered structures 1-1/4 OIA COOLINGI/IS DIA GRASS TUBING AIR OUTLETRIGGING WIRE GUIDE IKMART PLASTIC GOLF CLUB TUBE 7IS ALL STRINGERS IA U B BASGWOOO I/B SOT S AL S I/B PlYWOOD rR PLYWOOD SEPARATIONSEPARATION LINE CUT AWAT AFTERTA8 ASSEMBLY TO CLEAR 2 ~1ET1ZT2II2 CARBURETOR DETAILS SIMMY ERRALIOTGA -iIE7STUCK N ROUST I/SO PLYWOOD SPLIT BIROR REMOVE ASTYPICAL SLOT DETAIL IN POURERS BEGS AFTERDAYRRI 7 TO INTERLOCK RITA SLOTG IN I/3D PLYWOOD COWLINSO COWLING GOLD I/B PLYIROOS LOCATIONS 5 DII I/A RAGSWOOS PLAGUING RECESS HUGO I SCALE PROP READ BOLTII ASOS IRESS COWLING STRINGERS I/B PLYWUOD COLOR SCHEME AIRCRAFT ALL AEGIS WRITE LETTERING & DETAILS AG NOTES Ii CENTER OPTRRGTTLE ONANR SNAWITY 031 BRAGS 0 READLOCR 001 K 1-I/SD PLYWOOb T XlCOOLING I MOTE BLOWIlAIR DUCT / PLUI CONNECTOR__Il ENGINE --- FASTA DI/UOIA SPINNER 0 B ASSOCIATESEBTENSION NO SOUlGRAFT RG-SCALE PROVIDES ACCESS TO REMOTE GLOW PLUG BASSWOOD PA RNBG~ MUDO WRE SAG C W ~12 BBA WE LANSING SEAR SETAIL NOT TO SCALE S-i/S 02 TANK RU--N ~-/e1/PJ~ P BP WOOB A~I-CGAAL GWOOD EDJlBEWALL BSR BA GAiSUBD A4z{jBASSROL ~2JjB BA GA - SE'- SE ABA OS NERO ______________REMOTE GDA PLUS K DON T INS ULOCY BUSYWOSA I_______________________I--- STRINGERS ORATTES CLARITY II/BB 3/1K BASSWOOD CoR TO 5/4 ALUMINUM TUBING BOTTOM SIDE DROWN FOR CLARITY -S/IA BASGWUOD PLSO IS GNAW PIT CRA IN TABNS OK FUSELAGE FORMER ALIGNMENT GUIDE SELLORANK B UNDER CARRIAGE B RAT MOAN SB PL WOOSREND DOORS I/4G S/B _________ BASGWOBO~5~ A/4~WELL. \ BY DOER OFFSET LAMINATES I/IAG I/N BALSA I/NM PLYWOOD CURE RI I/IA Al/B BALGA I/ B 5/5 BALSA UBLDITh\ V BLACK DATLIN K SS RNGERS SR DIG ELYATOR PUGRROOAXURNSMUSIC WIRE 1/4 DIA MUSIC WIRE4 1/5 PLYWOOD I- I/OPLYWGSD II REGO TAI SKID SUPPORT SISSASB III T7/2YIBRATON DAMPENERRR9NG WRE PTT ASS I/IA SIAI/lB WA BRASS TAKE BRAGS RODCRW N DINLE 7DB PR I/SDOIA MUSIC ARE RIGGING WIGESSLBTSDIN MISIC /ABLE /G DR IRE RIGGING MAGIC WIRE PlN- I/SD GIA9 SI/BDIA WILLIAMS BROSMAGIC AWE ""NUTOUT TRREA1~~ GOLDEN ARE WHEELS MO GDREAM 010 GUT BRAGG BRACKETSLIP ONTO ASLE RSOLDERI DOUBLE AROUND DRILL ROD SWEAT SOLDER FREE ENDS DRILL SOT & BEND AS SASAG ASSEMBLE N SOLGER SN ABLE AG GROWN NOT TO SCALE AVIATION I BOULE 51 -0 WINGSPAN /U SESIDWED B DRAWN BY PRANK BEUTTY WACO PLAN ST PRUNA BEATTY 1O-ISRB ALL RISITS SYCETIBRAS cii 0 0 D 0 - L4- II TJjUIJ II BRASS TUBING PITOT TUBE DETAILS SLACK 37"SK-ZYPITOT TARE NR-ZT IROD ILYIK BALSAGOLD WITHBLACK 37 ING WIRE LOCATORS _________________LEADING EGGEBLACK OOTLWESGOD-IN SPARD WITH SASSAUSO 70 OUNCE LEAD ANGLE RIG sj7 LE RiB 3voosr RALSA PRONTSPAR IWW B BASSWOOD REAR SPAR II -EflQO_SPAR 1/B BUOSIROOD 0 REUD - - COWLNG PATTERG 1732 PLYWOOD FRONTREAR SLOTS INTERLOCIG WITH MATING SLOTS IN BOLAIIEAT ROTH COWLINSO B PL WOOD 00 RA NO EDGESOWEA ERA EMSS AGOG SE0 C AWA ERAN AS SE M B ~1II1 B OS j1~114YjL7GSOAAREB WAC BASSWOOO SPAR AR SPARI AGEDD7 175 PLTWOOO -O REDO 3\RALSA PAIRING COWLING PATTERN 70 PTWGDSI FRONTREARPLANK SIUOATEDI/B BALSA GRASS LATOP N BOTTOM II HDRARIRS PLYWOOD COKE DARK GREENTRIM ERCESS MATERIAL AFTER_________ ASSEMBLY BOTR COWLINGS BUILD UP EPOG AROUNDRODART BELLORANK MOONTCU OGGAREI/IA DIA GRASS TUBE BIASING WIRE LOCATOR UP-RIGHT BELLEBANK BALSA PAIRB4G 3 DIHEDRALI1~ZDCI ING WIRE CONNECTION DETAIL CAL AIBRATION DAMPENER AIR C 0-I/B BRASS ROD 3RE PLYWOOD DISKALLRIISI/reA&SAE I1I11 0I23BSK EE BRACKET DETAL ILifEP 2-1i3f~i PRESS I/IN DIG BRASSPAGS I/GO DIG WIRE THRASLIP 5/32 BRASS TRAINS THEN COGERPHINT NWIRED- ALLOW 3/B OVERLAP TUBING INTO DRiLLEDTONING BEND WIRE ENDODYER WIRES SWEAT SOLDER BOLE N COG -PARALELL WITH RIGGING POLISH MODEL TO SCALESESIGNED N ORAWN RY FRANK W BEATTY NOTE RIGGING WIRES ARE CONSIDERED TO SE FUNCTIONAL MODEL DHOILO NOT BE FLOWN WITHOUT TREM ~ARIAT ION PETE INKED PLAN ST FRANG REATTT BR-SB ALL RIOGTS SHEET RESERVES 2 OP 0 0 C 0 CD 0 0 0 cii mounting block bracket firewall bulkhead 4A Access remote glow plug through scale hole bottom cowling Attach wine fuselage Tabs bulkhead separation lines should mate receptacles wing center section bulkheads should automatically align wing axes double-check alignments before epoxying wing llace Cement dowel-pin fin stabilizer mount assembly fuselage Install elevator pushrods throttle linkages check fieedom movement Fit Vs x /4 sheet balsa fairings way around wing root fuselage remainder stringers can added Fit shape cement fairing blocks fin-to-stabilizer joint Sand entire fuselage well cover using Stix-It Koverall two coats Sig Dope Install fairings undercarriage axle struts prefer use basswood such fairings because resists compression fatigue-type distortions model has hard landing Cover struts /2-ounce fiberglass Finish At point model assembled engine wheels hardware items installed weighed approximately 51 ounces hung nose-down about 50 suspended its desienated Center Gravity CC location reasonable assume completed model would weigh mid 60s require little no ballast balance properly seemed going well fatal error made time scrapped 40-year-old hobby type compressor bought new /2-horsepower compressor same time switched brands dope new sealers dopes thinned applied manner accustomed realized new paints thicker required great deal thinner fewer coats would required little old compressor would have bilked new compressor dutifully laid heavy stuff Suddenly aware now very heavy model gone decidedly tailheavy Several courses action including stripping paint off contemplated summer contest season dreadfully near decided go ahead finish model finishing process model should include number coats sanding sealer followed coats white dope wet-or-dry sanding after coat satisfied white can dress up model decorative markings Mask off racing registration numbers wings fuselage sides spray black Cover up 37s wings fuselage Mask around registration numbers wing top bottom surfaces /s tape Spray remaining enclosed areas gold Prepare pane glass coating very soapy water dry pane sprayed gold Pete NR-2Y lettering rudder cut out lifted glass applied model using thinner bonding agent protected clear dope overspray See description technique Hot Canary article March 1996 Model Aviation Talcum powder rubbed lightly over gold Pete NR-27 lettering use black Top-Elite Panel-Line Pen draw black pinstriping around lettering Protect clear dope overspray little previous success sort ink applications doped surfaces procedure made almost like writing note paper after talcum applied little trick am indebted information gleaned Windy Urtnowskis videotapes Various panel lines applied using talcum panel-line pen technique Simulated rivets screw heads applied Pilot Silver Marker Protect clear dope overspray Finally several coats Sig clear dope sprayed over entire model whole hand-rubbed compound polished Final Assembly Study drawings carefully install rigging wires INTRODUCING NW LINE PRECISION PROP NUTS AND HUBS Now greater choice quality Tru-Turn products 3 sizes PROP NUTS ranging 5/8 7/8 diameter 2 shapes available stock R/O engine thread sizes 5 sizes PROP HUBS ranging 1to 2 diameter 2 shapes new PROP NUTS PROP HUBS addition existing line precision aluminum spinners range 1-1/2 6 over 90 shapes sizes blade configurations new Tru-Turn PROP HUB line complimented extensive line over 70 adapter kits Tru-Turn makes adapter production R/O engine market have adapter problem. help phone call away. See hobby dealer call us direct. Made USA PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY ATILITY T LOOKS TY PO Box 836 South Houston Texas 77587 713 / 943-1867 Visit us internet ru-turnnet ws 52 Model Aviation s tail Details brackets axles sweated tubing fittings rigging wire junction should selfexplanatory fear axle bracket fittings would fail first landing Instead four original-design fittings top wing failed first flight system replaced sweat tubing hardware shown rigging setup holding up nicely rigging considered functional model should flown cockpit doors formed 010 sheet brass doors attached miniature pins hinge line drawn panel line pin protected clear dope Finish model adding remaining details such vibration dampeners exhaust stacks dummy carburetor manifold Contest rules require us install dummy pilot visible flight Mine painted using advice gleaned Don Typonds fabulous videotape Paint Pilot Figuresit looks great videotape should serious Scale builders library true-scale carved propeller adds wonders models appearance prop made four /32 basswood laminations Carve stain paint varnish bolt model will pleased results Flying There no question excess weight bad avoided lately have come around thinking also down side lightly loaded models thing get bounced around wind especially true doing taxi operations Such operations upwind side circle coming wind can troublesome have come realize heavier models enjoy some advantages Truly overweight models can flown successfully balanced properly have ample power Such models very unforgiving pilot errors however pilot errors no-no built originally intended ready-to-fly weight 60-65 ounces Pete will dream machine aspects flying ground-handling operations So fly 90-ounce Pete sure model balanced properly nose should bang down approximately five degrees suspended CG location Fly model shorter-than-normal linessay 52 feet long OS 32 provides ample power Pete flies quite fast smooth Takeoffs level flight routine matters High flight operations especially attempted significant amount wind will definitely put model risk 54 Model Aviation 4 stalling out disastrous consequences Power-on landings accomplished maintaining sufficient power speed fly airplane way ground Gradually reduce power altitude until model has touched down rolling its main gear reduce power bit use bit elevator set tail ground trick maintain enough speed avoid stalling model landing approach yet going slowly enough avoid ballooning back air upwind side landing approach taxi run am telling Pete going weigh 65 ouncesis During learning process flying overweight clipped-wing racer some really hard landings made model cartwheeled once Midwest contest its wheels dug circles soft dirt surfaces Much surprise no compression fatigue stress cracks have shown up part models surface So listen up Build light fly right k Beatty 2608 Pontoon Rd Granite City IL 62040 Custom Built R/CAirCr aft Engines Single Twin cylinder Gas Engines Sini948 Fox Manufactuf any has building worlds finest model airplane motors carry filltliie accessories model airplane engines including Fox 24 32 42 58 Fox new engines coming soon Call today free catalog look us up internet wwwfoxmanufacturingcom 501 646-1656 Fax 501 646-1757 5305 Towson Avenue Fort Smith AR 72901 e-mail foxmotors@aolcom /CO tRI Olt1ffA4aUchi Association RnR Products Presents Wayne Handleys new Oracle TURBO RAVEN 1/5 Scale Options 1 High performance 2 mu vinyl graphics masking Set includes Raven masking gold border fuse wing wheel pants Oracle graphics wing stab fuse Price $65 Option 2 Factory applied graphics DuPont Chroma paint Graphics t Gene Barton Spinner Just looking Turbo Raven screams - EXTREME Two months after its debut Stockton CA Airshow 11/98 Wayne new Turbo Raven set new time-toclimb world record sea level 3000 meters 9843 feet less minute 10 seconds Turbo Ravens sexy sleek lines generous proportions ie large fin/rudder area gigantic strip ailerons allowed us design fully molded great flying model deviating originals outline no STAND-OFF-SCALE 4- Light weight hollow-core wing technology utilizing epoxy glass & carbon fiber skin hinging both wing stabilizer 4- Removable wing stab already mounted 4- Carbon fiber gear strut its mount hardware place 4 Durable gel-coat surfacing red/white no shrink film used zontally split engine cowl realism service ability removing prop spinner 4 Control surface horns attached Introductory Price ping Handling 56 Model Aviation ff best model aitplane parts First Line Signature Series AIatIo 935 Tamarack Avenue San Jose CA 95128 Phone 408248-4642 Fax 408248-4642 Email slpstream@earthlinknet Website wwwslipstream-aviationcom