WHEN SIG INTRODUCED Skyray 35 Carrier event annual Control Line contest later Nationals obtained two kits evaluation purposes built practice model Profile Carrier legal Skyray Carrier eventand try Out new idea two impressed quality kit surprising Sig product decided try convert other kit Profile Carrier model eligible ten scale bonus points first challenge find prototype aircraft straight nontapered wing Changing basic structure would have defeated purpose starting kit first place wing swept leading edge out question Because Skyray already big model 396 sq 44 span didnt want have add flapseven fixed onesto produce tapered wing especially since changing tips likely increase area well fuselage Skyray rather narrow thin fuselage prototype would also desirable few high-wing candidates didnt particularly like looks besides would have required completely new fuselage obvious candidate least since drew mystery plane feature September 1984 issue Curtiss XS2C-1 proportions wing location fuselage shape high-aspect-ratio straight wing lend themselves almost perfectly Skyray configuration single prototype XS2C- 1 manufactured Navy 1933 development YA-l0 tested Army produced A-12 large flaps full-span slats landing qualities acceptable large size 44 feet externally-braced non-folding wing however proved quite unsuitable carrier operations fact combined Navys propensity toward biplanes production aircraft made project short-lived Converting Sig Skyray 35 Profile Carrier operation relatively simple process options project described detail June 1990 column same procedures apply XS2C-1 fuselage main wing structure kit modified described Skyray 35 few additional changes achieve XS2C-l outlines new vertical stabilizer replaces original along new horizontal stabilizer elevator photos show basic changes details modifications follow basic wing structure shortened 39 moving outboard rib 1 leading edge left extend beyond outboard rib serve leading edge tip section shorter main wing structure allows large rounded tips within 50 span limit XS2C-l has span 49 used external controls line slider described Skyray modifications bellerank mounted top wing fairing keep out oil An internal bellerank slider prettier easier provide same amount line sweep rear fuselage sweeps upward aft wing canopy cut down outline Continued page 176 56 Model Aviation Added pieces -in balsa provide new contours rear fuselage Canopy fu selage bottom rear must cut proper outline Navy Carrier Dick Perry 6739 Stonecutter Dr Burke VA 22015 primary wing structure shortened 2 Inches new wingtip 1A-in balsa 1/8-ln bracing completes transforma tion Skyray left XS2C-1 FThis months column describes modifications turn Sig Skyray 35 kit Curtiss XS2C- 1 Profile Carrier Standard Skyray stabilizer elevator top new ones XS2C-1 pro vide similar area moments Skyray kit sturdier vertical stabilizer constructed -in balsa helps prevent damage inad vertent nose-overs flying grass group photos illustrates fuselage detail wing tail shapes nose XS2C-1 stays full depth gets some new con tours Pieces l/8in balsa simulate radial cowl holes fuselage over wing external leadouts Available dealer Made Amenca wait Amerleon Teehiwlogy RJL K61 Feetsea Include Single Ring Forged Piston investment Ceat Crankcase &hnueie Porting Double Ball Swings Forged Rod Bushed Both Ends Machined LaIesr sampurwr LOflcW~UU cuupmUnr HP VT2J & VT49 Four Cycle Made Austna hudwcries Features Include Double 81/Bearings ABC Overhead Rotary Valves supported roller bearings Forged Rod Bushed both ends Ringed ABC Piston/Cylinder true chrome HP Gold Cup 61 ABC Also Available 20 40 Sizes 61 Hell ringed 40& 61 rear intake Marine versions Features Include Schnuerle Porting Double Ball Bearings Slide Valve Carburetor Forged Rod ed both ends ABC Piston/C vlinder true chrome Wntage Forster Glow & Ignition very low production engine produced America Sold factory direct Glow $9500Ignition $13500 choice 29 38 Add $300 S&il CA Residents add tax 4-6 weak delivery FACTORY PARTS & SERVICE FOR HB ENGINES- RJL ENGINES- HP ENGINES KRAFT 61 Cox CONQUEST 15 TAIPAN 40 HGK ENGINES- FORSTER ENGINES MCCOY SERIES 21 SLACK HEAD FINNED CASE CALL OR WRFIE FOR FREE INFORMATION RJL INDUSTRIES USA PO Box5 SIERRA Mwr CA 91025 TELEPHONE 818 359-0016 fr & MODEL BUILDING 7SERVICE RADIO CONT1OL PROOUCI3 carry full line Byron Originals Bob Parkerson Tom Cook Bob Violet products COD Orders Accepted 718 983-9735 128 WATCHOGUE tOAD EN SlAt-f 0314 wants produce turbulent boundary layer downstream attachment delay flow separation later surface nicely contoured NACA 0010 section actually slightly poorer performance slab sheet section Theres still lot learned going build new stab/elevator right now what kind would build No question about light Builder Model Rule has few rules event has remained unchanged least intent since start certainly does imply cannot should changed Over last few years opinions have stated privately press over validity relevance long-standing part event given reality busy modern life has become common local contests permit fliers enter planes comply BOM provided waive appearance points opinion good circumstance event general promotes fliers competing people get flying better off event will now future note endorsement unofficial stops local contests National Event Directors have knowingly permitted violations BOM nor should rule effect Further participants sign names enter stating will comply rules written Therefore rationalization anyone simply valid Realize points intentionally left unsaid perhaps time surface issue again deal course its companion appearance points BOM dropped appearance points go also no good way enforce can see argument facilitating greatest participation good buy has certainly helped RC legal few community would want supply finished competitive planes Thats positive Bottom line Precision Aerobatics community want away BOM get together work official rules process change rules Ive flying stunt thirty-nine years has always basic topic has stood test believe event has endured part because BOM has required competitors persevere achieve high standards Like old friend Ill hate see go year Northwest Regionals reputation largest finest CL meeting grows grows Held permanent CL site Eugene Oregon Airport features three asphalt four grass circles meet includes virtually competitive events year its May 25 26 Contact John Thompson 1145 Birch Ave Cottage Grove Oregon 97424 Tel 503/942-7324 details D CL Navy Carrier/Perry Continued page 56 required forward cockpit rear cockpit turtledeck formed -in balsa forward fuselage kept full depth A-in pieces added expand plywood doublers same height balsa outline cut resemble radial cowl prototype few additional pieces /8-in balsa around nose some sandpaper complete radial engine illusion horizontal stabilizer elevator cut hard %-in balsa n spruce piece hinge line hold dacron thread hinges spruce elevator section spans full width tail connects two halves elevator vertical stabilizer formed A-in balsa added strength Ive kept text short month allow photographs XS2C-l model would happy hear anyone wishes try XS2C-l conversion Sig Skyray will provide full-size outlines wingtips horizontal stabilizer elevator fuselage vertical stabilizer plus threeview drawing prototype XS2C-l bonus point documentation Cost package five dollars Theres still plenty time prepare Nationals Control Line flight areas have paved since last year flying conditions should considerably improved hope see D hi EIectri~g money back Adjustable silchlog polst Solderless lenolnal toe easy hookup ___ ON/OFF Controller ower save weIght very hIgh etficlency 006V loss 20 Sloe 22x13x63 Add SlOt shippio0 cslifoodrcidosodd 725%5217Ts Send Check money order coumoisi h Sky taIoosooo3929 Kansas St #9 obe~ooeSan DlegoCA 92104•- TELLITE FREE FLIGHT KITS ~Oo/o off ad 26 /A Gas 320 Gas 450 A-B Gas 788 B-C-fl Gas 788 8-C-fl Gas Full Kit $2795 Full Kit $3095 Fu K $4295 PoKI $4795 Fu Kt $6795 rnd 4~muhiIhuIsU CA OG P M vrlip U 0Ps Add $3 95 SP p 176 Model Aviation
Edition: Model Aviation - 1991/06
Page Numbers: 56, 176
WHEN SIG INTRODUCED Skyray 35 Carrier event annual Control Line contest later Nationals obtained two kits evaluation purposes built practice model Profile Carrier legal Skyray Carrier eventand try Out new idea two impressed quality kit surprising Sig product decided try convert other kit Profile Carrier model eligible ten scale bonus points first challenge find prototype aircraft straight nontapered wing Changing basic structure would have defeated purpose starting kit first place wing swept leading edge out question Because Skyray already big model 396 sq 44 span didnt want have add flapseven fixed onesto produce tapered wing especially since changing tips likely increase area well fuselage Skyray rather narrow thin fuselage prototype would also desirable few high-wing candidates didnt particularly like looks besides would have required completely new fuselage obvious candidate least since drew mystery plane feature September 1984 issue Curtiss XS2C-1 proportions wing location fuselage shape high-aspect-ratio straight wing lend themselves almost perfectly Skyray configuration single prototype XS2C- 1 manufactured Navy 1933 development YA-l0 tested Army produced A-12 large flaps full-span slats landing qualities acceptable large size 44 feet externally-braced non-folding wing however proved quite unsuitable carrier operations fact combined Navys propensity toward biplanes production aircraft made project short-lived Converting Sig Skyray 35 Profile Carrier operation relatively simple process options project described detail June 1990 column same procedures apply XS2C-1 fuselage main wing structure kit modified described Skyray 35 few additional changes achieve XS2C-l outlines new vertical stabilizer replaces original along new horizontal stabilizer elevator photos show basic changes details modifications follow basic wing structure shortened 39 moving outboard rib 1 leading edge left extend beyond outboard rib serve leading edge tip section shorter main wing structure allows large rounded tips within 50 span limit XS2C-l has span 49 used external controls line slider described Skyray modifications bellerank mounted top wing fairing keep out oil An internal bellerank slider prettier easier provide same amount line sweep rear fuselage sweeps upward aft wing canopy cut down outline Continued page 176 56 Model Aviation Added pieces -in balsa provide new contours rear fuselage Canopy fu selage bottom rear must cut proper outline Navy Carrier Dick Perry 6739 Stonecutter Dr Burke VA 22015 primary wing structure shortened 2 Inches new wingtip 1A-in balsa 1/8-ln bracing completes transforma tion Skyray left XS2C-1 FThis months column describes modifications turn Sig Skyray 35 kit Curtiss XS2C- 1 Profile Carrier Standard Skyray stabilizer elevator top new ones XS2C-1 pro vide similar area moments Skyray kit sturdier vertical stabilizer constructed -in balsa helps prevent damage inad vertent nose-overs flying grass group photos illustrates fuselage detail wing tail shapes nose XS2C-1 stays full depth gets some new con tours Pieces l/8in balsa simulate radial cowl holes fuselage over wing external leadouts Available dealer Made Amenca wait Amerleon Teehiwlogy RJL K61 Feetsea Include Single Ring Forged Piston investment Ceat Crankcase &hnueie Porting Double Ball Swings Forged Rod Bushed Both Ends Machined LaIesr sampurwr LOflcW~UU cuupmUnr HP VT2J & VT49 Four Cycle Made Austna hudwcries Features Include Double 81/Bearings ABC Overhead Rotary Valves supported roller bearings Forged Rod Bushed both ends Ringed ABC Piston/Cylinder true chrome HP Gold Cup 61 ABC Also Available 20 40 Sizes 61 Hell ringed 40& 61 rear intake Marine versions Features Include Schnuerle Porting Double Ball Bearings Slide Valve Carburetor Forged Rod ed both ends ABC Piston/C vlinder true chrome Wntage Forster Glow & Ignition very low production engine produced America Sold factory direct Glow $9500Ignition $13500 choice 29 38 Add $300 S&il CA Residents add tax 4-6 weak delivery FACTORY PARTS & SERVICE FOR HB ENGINES- RJL ENGINES- HP ENGINES KRAFT 61 Cox CONQUEST 15 TAIPAN 40 HGK ENGINES- FORSTER ENGINES MCCOY SERIES 21 SLACK HEAD FINNED CASE CALL OR WRFIE FOR FREE INFORMATION RJL INDUSTRIES USA PO Box5 SIERRA Mwr CA 91025 TELEPHONE 818 359-0016 fr & MODEL BUILDING 7SERVICE RADIO CONT1OL PROOUCI3 carry full line Byron Originals Bob Parkerson Tom Cook Bob Violet products COD Orders Accepted 718 983-9735 128 WATCHOGUE tOAD EN SlAt-f 0314 wants produce turbulent boundary layer downstream attachment delay flow separation later surface nicely contoured NACA 0010 section actually slightly poorer performance slab sheet section Theres still lot learned going build new stab/elevator right now what kind would build No question about light Builder Model Rule has few rules event has remained unchanged least intent since start certainly does imply cannot should changed Over last few years opinions have stated privately press over validity relevance long-standing part event given reality busy modern life has become common local contests permit fliers enter planes comply BOM provided waive appearance points opinion good circumstance event general promotes fliers competing people get flying better off event will now future note endorsement unofficial stops local contests National Event Directors have knowingly permitted violations BOM nor should rule effect Further participants sign names enter stating will comply rules written Therefore rationalization anyone simply valid Realize points intentionally left unsaid perhaps time surface issue again deal course its companion appearance points BOM dropped appearance points go also no good way enforce can see argument facilitating greatest participation good buy has certainly helped RC legal few community would want supply finished competitive planes Thats positive Bottom line Precision Aerobatics community want away BOM get together work official rules process change rules Ive flying stunt thirty-nine years has always basic topic has stood test believe event has endured part because BOM has required competitors persevere achieve high standards Like old friend Ill hate see go year Northwest Regionals reputation largest finest CL meeting grows grows Held permanent CL site Eugene Oregon Airport features three asphalt four grass circles meet includes virtually competitive events year its May 25 26 Contact John Thompson 1145 Birch Ave Cottage Grove Oregon 97424 Tel 503/942-7324 details D CL Navy Carrier/Perry Continued page 56 required forward cockpit rear cockpit turtledeck formed -in balsa forward fuselage kept full depth A-in pieces added expand plywood doublers same height balsa outline cut resemble radial cowl prototype few additional pieces /8-in balsa around nose some sandpaper complete radial engine illusion horizontal stabilizer elevator cut hard %-in balsa n spruce piece hinge line hold dacron thread hinges spruce elevator section spans full width tail connects two halves elevator vertical stabilizer formed A-in balsa added strength Ive kept text short month allow photographs XS2C-l model would happy hear anyone wishes try XS2C-l conversion Sig Skyray will provide full-size outlines wingtips horizontal stabilizer elevator fuselage vertical stabilizer plus threeview drawing prototype XS2C-l bonus point documentation Cost package five dollars Theres still plenty time prepare Nationals Control Line flight areas have paved since last year flying conditions should considerably improved hope see D hi EIectri~g money back Adjustable silchlog polst Solderless lenolnal toe easy hookup ___ ON/OFF Controller ower save weIght very hIgh etficlency 006V loss 20 Sloe 22x13x63 Add SlOt shippio0 cslifoodrcidosodd 725%5217Ts Send Check money order coumoisi h Sky taIoosooo3929 Kansas St #9 obe~ooeSan DlegoCA 92104•- TELLITE FREE FLIGHT KITS ~Oo/o off ad 26 /A Gas 320 Gas 450 A-B Gas 788 B-C-fl Gas 788 8-C-fl Gas Full Kit $2795 Full Kit $3095 Fu K $4295 PoKI $4795 Fu Kt $6795 rnd 4~muhiIhuIsU CA OG P M vrlip U 0Ps Add $3 95 SP p 176 Model Aviation