Control Line NAVY CARRIER Dick Perry THE UNIDENTIFIED CARRIER AIR CRAFT January column un successful competitor against Fairey Gannet anti-submarine aircraft British Royal Navy Blackburn YA5 shared common awkwardness form Gan net almost specification built required particular variant illustrated first four con figurations modified vertical stabi lizer rudder became YA7 outer wing panels modified swept back third crew member position added second prototype YA8 third last prototype YB 1 YA8 configuration Arm strong Siddeley Double Mamba turbine powerplant replacing Rolls-Royce Grif fon 56 piston engine first two aircraft As write have yet received replies Ill announce winner May column months Mystery Aircraft uncommon airplane almost never recognized carrier aircraft Ill tell Identify Carrier plane win prize years membership Navy Carrier Society Send entries Dick Perry address end col umn pulls winner correct entries flaps John Kramers Class Douglas SBD Dauntless use standard control horn buried within fuselage change wings dihedral angle angle hinge line requires lisp three segments Outer segments couple inner via wire-and-tube see column els Although flaps beneficial slow flight wing flying argue flaps add lift fully-stalled wing cause poor handling qualities An airfoil 450 600 angle attack produces little usable lift whether has flaps flaps provide impor tant lift force within slipstream propeller very high angles attack force helps slow airplane effect can produce very low speeds particularly heavier models require high power settings keep aloft Flaps tend force nose down deflected can produce some pitch instability particularly during rapid changes power tendency can re duced large tail long tail moment aft balance point smooth throttle technique Another way reduce effect use split flaps rather plain flaps commonly used Carrier models split flap extends lower wing surface shape upper wing surface unchanged flap deflected split flap will produce almost exactly same change lift coefficient Continued page 164 about next time As before Ill select winner random correctly identify aircraft will re ceive years membership Navy Car rier Society Previous columns have dealt aircraft configurations techniques achieving very slow less 12 mph low speed performance occurring more Profile Carrier event may soon showing up Class II well basic requirements 1 lot wingtip weight 2 line-slider 3 large air plane Profile models approaching 400 sq wing area may about maximum practical area before model starts becoming too heavy Class II models also growing larger biggest models 1983 Nats Dave Wallicks 40-in Guardian Class II 42-in MO-l Class models also slowest class placed first Class second Class II some disagreement whether flaps desirable Flaps ailerons add some weight drag effect small particularly Profile Carrier modDave Wallicks Class ii Guardian best slow speed 83 Nets 165 mph Can see super-thick airfoil deflected flaps Look elevator position Aft balance point thick wing flap combination does require lots Up elevator hold attitude C 4 line-connector model attachment fourth line both model control handle will leave construction installation items own ingenuity last thought before closing has comments need additional infor mation about project would too glad hear Good luck Send CL Scale items Bill Boss 77-06 269th Sr New Hyde Park NY 11040 CL Navy Carrier/Perry Continued page 67 plain hap nose-down pitching moment will about half pro duced plain flap 1 have run tests comparing full-stall low-speed performance flaps What have noticed however models consistently fly seven eight miles per hour light winds have flaps can make own conclusions own observations Putting flaps airplane rather straightforward task Probably common way operating flaps use standard horn arrangement push/pull rod connected arm tailhook Ive used wide variety hinges tube-andwire through full range commercial hinges hinges made iron-on Mylar covering oh convenient hinges Ive used last two models onepiece polypropylene hinge Full Com mand Systems 908 E Rosewood Spokane WA 99208 Because no hinge pins no sliding surfaces cant harm hinge inadvertently getting CyA glue epoxy paint hinge line light very stronga good characteristic flaps actuated tailhook Wings have straight hinge line must have divided flaps F4U Cor sair three flap segments per wing An easy way connect flap segments shown accompanying photo segment contains Vi6-in OD brass aluminum tube mounted near trailing edge other flap segment has 0025 wire tached extending across break tube wire can bend slide within tube allow movement tween segments Richard L Perry 7578 Vogels Way Springfield VA 22153 CL Racing/Ballard Continued oaoe 68 amount fuel engine receives prime tube works independently fuel shutoff fuel shutoff does have open engine receive prime think majority problems develop fuel shutoff open during filling process allowing large amount fuel injected carburetor and/or Fine Quality Flying Models Catalog Si 50 98 RUBBER POWER KITSI plus Gliders C/L R/C Accessories Books MAJESTIC MODELS 3273 West 129th Street Cleveland Ohio 44111 FREE 1984 Catalog tools Hobbyist Miniature lathes Milling/drilling machines Jig & circular saws Styrofoam cutter W1i hobby products co PO Box 07846 Columbus OH 4320 HOOOYHTDEAWAYHOBOYHIEAWAYHOOBYHIDEAWAYHOOBYHIOEAWAi FAMOUS BRITISH DIESELS AEROMODELLER PLANS SPARES FOR M/E PAW 0/C 3rd PRINTING CATALOG - DIESEL HANDBOOK $350 pp HOBBY HIDE WAY DELAVANIL 309 244-7389 61734 HOOOYIIIOEAWAYHOBOYHTDEAWAYIIOBOYHIDEAWAYFIOOOYHIDEAW 164 Model Aviation Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant * Constantly monitors receiver interference another trans mitter outside sources instantly reducing throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo Case Power 17 ma Volt Cut-Out Point 46 volts Pulse Width Range Adj 0628 milliseconds Systems 3 4 wire Temp Range 00 1400 F Weight 12 oz Price $4795 Postpaid Specify connector type positive negative pulse ordering RF Enterprises 106 N Main St. Arlington OH 46814 419 355-5065 GIANT SCALE & SPORT PLANS SETS & KITS order contains concise construction manual Partial kits include precut wing ribs fuselage formers prebent landing gear already have plan sets may deduct 1000 prices partial kits listed below Fiberglass parts f,lI kits Travel Air D 4000 j 8 Special MK4 convertible 84 Monoplane 78 Siplane Weighs 18 lbs Low Wing elpiane & Parasol Plans $1700Plans $1700 Partial Kit $8500 EitherSoth Partial Kit $9500 Travel Air 2000 105 classic Scale niplane Wt 23 lbs Plans $1700 Partial Kit $13000 Travel Air 4000 99 Radial Eng Classic Siplane 23 lbs Plans $1700 Partial Kit $13000 Fokker 0-VII 58 German WWI Fighter elplane 23 lbs Plans $1700Partial Kit $13000 Sopwith Tripehound80WWI Triplane 17 lbs Plans $1700Partial Kit $14000 Sopwith Pup80 WWI Siplane16-17 lbs Plans $1700 Partial Kit $13000 WACO uPF-790 Siplane 23 lbsPlans $1700 Airplanes LandingGear 2wireformedonly$995 r $1shipping Assembled ready install $1995 ipping IWbeel Pants models add $51 Cabanas$995 hipping Fokker Cabanas$1495 hipping Hardware Packageincludes famous 8ehrens strut system$11 95PP Ordering information orders shipped uS Parcal Post add $3 shipping plans $10 kits Make checks payable Jerry eehrens fastest service send Postal Money Order bank check Sorry no COOs accepted Send mail orders BEHRENS PLAN SERVICE 3127 Healy Ave Far Rockaway NY 11691 Phone 12121 337-6987 Allow 4-6 weeks delivery g BALANCt IC ALL UlHtIIlUN Heres equipment yuu need give props sey bes balance--balance directions Carefully crafted tsp grad materials BUBBLE BALANCER accomodates 3/161/49/32 prol holes Other sizes available us special order Dealers invited $1795 AddStOOfar HOWARD B HUEBL OEPT$O postage handling Miss 6% sales tan Na CODs Seo 82 St 6 Monkate MN 5600
Edition: Model Aviation - 1984/03
Page Numbers: 67, 164
Control Line NAVY CARRIER Dick Perry THE UNIDENTIFIED CARRIER AIR CRAFT January column un successful competitor against Fairey Gannet anti-submarine aircraft British Royal Navy Blackburn YA5 shared common awkwardness form Gan net almost specification built required particular variant illustrated first four con figurations modified vertical stabi lizer rudder became YA7 outer wing panels modified swept back third crew member position added second prototype YA8 third last prototype YB 1 YA8 configuration Arm strong Siddeley Double Mamba turbine powerplant replacing Rolls-Royce Grif fon 56 piston engine first two aircraft As write have yet received replies Ill announce winner May column months Mystery Aircraft uncommon airplane almost never recognized carrier aircraft Ill tell Identify Carrier plane win prize years membership Navy Carrier Society Send entries Dick Perry address end col umn pulls winner correct entries flaps John Kramers Class Douglas SBD Dauntless use standard control horn buried within fuselage change wings dihedral angle angle hinge line requires lisp three segments Outer segments couple inner via wire-and-tube see column els Although flaps beneficial slow flight wing flying argue flaps add lift fully-stalled wing cause poor handling qualities An airfoil 450 600 angle attack produces little usable lift whether has flaps flaps provide impor tant lift force within slipstream propeller very high angles attack force helps slow airplane effect can produce very low speeds particularly heavier models require high power settings keep aloft Flaps tend force nose down deflected can produce some pitch instability particularly during rapid changes power tendency can re duced large tail long tail moment aft balance point smooth throttle technique Another way reduce effect use split flaps rather plain flaps commonly used Carrier models split flap extends lower wing surface shape upper wing surface unchanged flap deflected split flap will produce almost exactly same change lift coefficient Continued page 164 about next time As before Ill select winner random correctly identify aircraft will re ceive years membership Navy Car rier Society Previous columns have dealt aircraft configurations techniques achieving very slow less 12 mph low speed performance occurring more Profile Carrier event may soon showing up Class II well basic requirements 1 lot wingtip weight 2 line-slider 3 large air plane Profile models approaching 400 sq wing area may about maximum practical area before model starts becoming too heavy Class II models also growing larger biggest models 1983 Nats Dave Wallicks 40-in Guardian Class II 42-in MO-l Class models also slowest class placed first Class second Class II some disagreement whether flaps desirable Flaps ailerons add some weight drag effect small particularly Profile Carrier modDave Wallicks Class ii Guardian best slow speed 83 Nets 165 mph Can see super-thick airfoil deflected flaps Look elevator position Aft balance point thick wing flap combination does require lots Up elevator hold attitude C 4 line-connector model attachment fourth line both model control handle will leave construction installation items own ingenuity last thought before closing has comments need additional infor mation about project would too glad hear Good luck Send CL Scale items Bill Boss 77-06 269th Sr New Hyde Park NY 11040 CL Navy Carrier/Perry Continued page 67 plain hap nose-down pitching moment will about half pro duced plain flap 1 have run tests comparing full-stall low-speed performance flaps What have noticed however models consistently fly seven eight miles per hour light winds have flaps can make own conclusions own observations Putting flaps airplane rather straightforward task Probably common way operating flaps use standard horn arrangement push/pull rod connected arm tailhook Ive used wide variety hinges tube-andwire through full range commercial hinges hinges made iron-on Mylar covering oh convenient hinges Ive used last two models onepiece polypropylene hinge Full Com mand Systems 908 E Rosewood Spokane WA 99208 Because no hinge pins no sliding surfaces cant harm hinge inadvertently getting CyA glue epoxy paint hinge line light very stronga good characteristic flaps actuated tailhook Wings have straight hinge line must have divided flaps F4U Cor sair three flap segments per wing An easy way connect flap segments shown accompanying photo segment contains Vi6-in OD brass aluminum tube mounted near trailing edge other flap segment has 0025 wire tached extending across break tube wire can bend slide within tube allow movement tween segments Richard L Perry 7578 Vogels Way Springfield VA 22153 CL Racing/Ballard Continued oaoe 68 amount fuel engine receives prime tube works independently fuel shutoff fuel shutoff does have open engine receive prime think majority problems develop fuel shutoff open during filling process allowing large amount fuel injected carburetor and/or Fine Quality Flying Models Catalog Si 50 98 RUBBER POWER KITSI plus Gliders C/L R/C Accessories Books MAJESTIC MODELS 3273 West 129th Street Cleveland Ohio 44111 FREE 1984 Catalog tools Hobbyist Miniature lathes Milling/drilling machines Jig & circular saws Styrofoam cutter W1i hobby products co PO Box 07846 Columbus OH 4320 HOOOYHTDEAWAYHOBOYHIEAWAYHOOBYHIDEAWAYHOOBYHIOEAWAi FAMOUS BRITISH DIESELS AEROMODELLER PLANS SPARES FOR M/E PAW 0/C 3rd PRINTING CATALOG - DIESEL HANDBOOK $350 pp HOBBY HIDE WAY DELAVANIL 309 244-7389 61734 HOOOYIIIOEAWAYHOBOYHTDEAWAYIIOBOYHIDEAWAYFIOOOYHIDEAW 164 Model Aviation Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant * Constantly monitors receiver interference another trans mitter outside sources instantly reducing throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo Case Power 17 ma Volt Cut-Out Point 46 volts Pulse Width Range Adj 0628 milliseconds Systems 3 4 wire Temp Range 00 1400 F Weight 12 oz Price $4795 Postpaid Specify connector type positive negative pulse ordering RF Enterprises 106 N Main St. Arlington OH 46814 419 355-5065 GIANT SCALE & SPORT PLANS SETS & KITS order contains concise construction manual Partial kits include precut wing ribs fuselage formers prebent landing gear already have plan sets may deduct 1000 prices partial kits listed below Fiberglass parts f,lI kits Travel Air D 4000 j 8 Special MK4 convertible 84 Monoplane 78 Siplane Weighs 18 lbs Low Wing elpiane & Parasol Plans $1700Plans $1700 Partial Kit $8500 EitherSoth Partial Kit $9500 Travel Air 2000 105 classic Scale niplane Wt 23 lbs Plans $1700 Partial Kit $13000 Travel Air 4000 99 Radial Eng Classic Siplane 23 lbs Plans $1700 Partial Kit $13000 Fokker 0-VII 58 German WWI Fighter elplane 23 lbs Plans $1700Partial Kit $13000 Sopwith Tripehound80WWI Triplane 17 lbs Plans $1700Partial Kit $14000 Sopwith Pup80 WWI Siplane16-17 lbs Plans $1700 Partial Kit $13000 WACO uPF-790 Siplane 23 lbsPlans $1700 Airplanes LandingGear 2wireformedonly$995 r $1shipping Assembled ready install $1995 ipping IWbeel Pants models add $51 Cabanas$995 hipping Fokker Cabanas$1495 hipping Hardware Packageincludes famous 8ehrens strut system$11 95PP Ordering information orders shipped uS Parcal Post add $3 shipping plans $10 kits Make checks payable Jerry eehrens fastest service send Postal Money Order bank check Sorry no COOs accepted Send mail orders BEHRENS PLAN SERVICE 3127 Healy Ave Far Rockaway NY 11691 Phone 12121 337-6987 Allow 4-6 weeks delivery g BALANCt IC ALL UlHtIIlUN Heres equipment yuu need give props sey bes balance--balance directions Carefully crafted tsp grad materials BUBBLE BALANCER accomodates 3/161/49/32 prol holes Other sizes available us special order Dealers invited $1795 AddStOOfar HOWARD B HUEBL OEPT$O postage handling Miss 6% sales tan Na CODs Seo 82 St 6 Monkate MN 5600