Designed double ball bearing PAW 049 diesel engine 254-sqin model opens new vistas competition Barry Baxter RECENT ADVANCES engine technology rapidly squeezing out venerable Cox Tee Dees modeling competition Hot-rod Shurikens CSs delivering high performance high rpm have broadened expectations about what engine can Speed Racing Combat fliers benefiting Stunt sport fliers have discovered double ball bearing PAW 049 diesel engine provides excellent Stunt performance one-third price Shuriken PAW 049 far consistently smooth running Cox Tee Dee Its also remarkably easy start simple adjust maximum power Thats 1/ZA Arrow comes designed model take full advantage PAW 049 diesels strengths engine swings 7 x 4 propeller easily pulls 254-sq-in airplane through pattern authority PAW 049 can ordered Eric Clutton 913 Cedar Lane Tullahoma TN 37388 cost about $70 excellent double ball bearing engine Its available both Control Line Scale Radio Control Scale versions 049 35 offers outstanding idling characteristics either application PAW 35 has won Stunt British Nationals last three years 049 first tried 200-sq-in Stork profile Nobler look-alike successfully built Tee Dee Stork has flaps employs rather thin airfoil 2/2-oz engines extra ounce weight lower speed exposed airfoils deficiencies Loops became amazingly wide Obviously large-area wing needed carry weight PAW diesels like Inspiration came two 1950s-vintage Bill Netzeband flying wing designs Half Fast Combat Fierce Arrow Stunt flying wing has proven efficient way gain 54 Model Aviation Above Our author finished flying wing design striking effect yellow MonoKote black MonoKote Trim Sheet sunburats fuselage fin sunburst pattern painted Black Baron black edged white trim tape Clear Black Baron keeps tape lift ing Below look underside model shows landing gear tip skid setup author watershed V2A flying wing needed large wing offset ex tra weight PAW 049 diesel PAW takes through entire pattern sin gle run obvious competitive advantage Full-Size Plans Available . See Page 192 r74 4 ANNICASS N SNAWN BARRY IGAXTER maximum wing area least weight early designs still perform admirably Old-Timer competition 254-sq-in 10A-oz hA model does credit genreand marks watershed Stunt competition Stunt contests dominated Tee Dee-powered models flier made farthest through pattern before engine quit usually won PAW 049-powered hA Arrow makes incomplete patterns thing past unless fly Stunt way forget maneuver two common problem will overruns engine barely sips fuel will run about 10 minutes ounce juice use Red Max Fuel available FHS Supply Inc 239 Bethel Church Rd Clover SC 29710 company mixes recipe 35% ether 20% castor 15% amyl nitrate balance kerosene brew has worked quite well diesel sizes current nitro shortage gives diesel fuel additional advantage availability stable price Because slower higher torque characteristics diesel engines deliver power band lends itself much better Stunt flying high-rpm glow engines Most current engines have modified provide sort power its first flight hA Arrow exceeded highest expectations flaw slight twist wing removed heat gun Test flown sea level again 5000 ft model flew pattern both altitudes high altitude however 7 x 4 propeller too much little engine lost rpm through maneuvers Substituting 7 x 3 propeller would have made engine efficient height PAW 049 starts runs same compression setting little tuning required once initial settings found high-altitude operation compression screw turned about one-eighth turn needle valve adjusted leaner setting Construction Building modelor indeed full-size craftfrom working drawing fraught difficulties usually build airplane draw results time did other way around sure enough make changes led some peculiar building techniques Ive since worked out efficient method shown some photos December 1991 55 basic wing planform under construction Use power pack assembly space No 1 ribs doublers Note spars leading edges reach centeriine fully assembled power pack before Engine tank installation complete except addition firewall lower cowl block shortened fit re designed nose model originally de signed much longer nose plan Its described instructions follow Begin cutting out parts make kit Wing sure use /16 hard balsa least No 3 4 ribs Since ribs unsupported good part length tend become distorted covering material shrunk Draw engine mount reference lines doublers ensure alignment mounts installed Assemble wing planform allowing leading edge 3A6 spars join centerline will trimmed back later Leave No 1 ribs doublers loose until power pack assembly bellcrank mount ready install Install fixed flaps wing tips including fairings gussets tip skids Add 14 -oz tip weight Make sure flaps aligned chord line wing Engine mounting power pack landing gear Make belly block either A-in balsa block laminating A-in 14-in sheet together Assemble power pack gluing engine mounts belly block Check engine mount blocks parallel correct distance apart Bend A6 landing gear wire shape shown assemble landing gear sandwich Slide landing gear power pack assembly wing assembly Align No 1 ribs doublers glue place Cut out lower spar glue landing gear sandwich position Install Goldberg nylon bellcrank 020 piano wire lead-outs lead-out guides Cut away leading edge spars wing center section install power Continued page 144 56 Model Aviation landing gear sanawicn nas neen glued place bellcrank has installed Tip skid detail showing tairing triangular gusset FOX 2-4 Cycle Special Glow Plug 40702 Miracle Plug totally new concept glow plug design Instead using idle bar MIRACLE PLUG built pre-combustion chamber important thing glow plug retains heat better other glow plug know Try notice much smoother motor responds throttle commands Also will probably able fly less intro fuel Try low intro fuel wouldnt rev-out before Tests also show reduced fuel consumption cases WARNING! motor will probably idle faster re-set throttle erwise might able land Hard believe rse check out MIRACLE PLUG case Youll love FLY AMERICAN *** FLY FOX FOX MANUFACTURINO COMPANY July column simply invite reader feelings about EAA idea posing query came few readers incidentally particular some past reader letters comments questioned function value organization Some felt EAA focused interests very few E-fliers namely specializing highest possible Electric performance such may representing interests E-fliers AMA July column intended ask feelings about whether matters attendant question whether its time change EAA time 5305 Towsofl Avenue Fort Smith AR 72901 501 6461856 promised pass along results survey what Im now doing loud clear lack response view very strong message EAA Nuff said final column 1991 ends Please enclose SASE letter requesting response have good Electric fall season RC Helicopters/Jolly Continued page 53 crankshaft PLT allows re tighten prop nut removing engine machine PLT quality unit comes explicit instructions its use must warn you over torque prop-nut could cause serious damage piston connecting rod careful take easy other hand PLT looks much safer certainly desirable stuffing dowel exhaust port enginesomething Ive witnessed other fliers doing Concepts Board Systems can reached 7210 Jordan Ave Suite D37 Canoga Park CA 91303 818/999-3952 BCNU Arrow/Baxter Continued page 56 pack assembly making sure engine mounts aligned wing chord butted up landing gear sandwich assembly Build up sides engine mounts scrap balsa nose can faired spinner Install 1A6 wire pushrod add tank floor bulkheads Plank upper lower center section Install fuel tank Tail surfaces Hinge elevator used Goldberg nylon hinges Rather merely cutting slot elevator trailing edge cut shallow notches both surfaces hinges would mounted After installing hinges filled notches Model Magic Install control horn included bellcrank attach pushrod Glue fin Add fuselage sides triangular fillers top Engine installation Note engine offset Ive experimenting concept much favor foreign Combat fliers use good deal engine offsetbut no rudder offsetin straight airframe straight fin keeps airframe aligned flight path offset thrust maintains line tension combination works well model does foreign designs judging strength showing international competition 144 Model Aviation WE MAKE MIRACLES EVERY DAY 0 N m3oATh bt6 SETS oA6~ 1 aeosyeaP ----- UNA AIRCRAFTIRADIO ID LABEL SETS Identify sIrcsft per AMA safety rules Self stick labels easy apply peerraeeer Seen check set $125 plus 95 P&H $220 six sets 54 pks 195 P951 $5951 BalsadaS EneeryOses PS PaulO New York NY 10021 PINSPATCHES Ltctan rngfim L7 CUSTOM ENAMEL PINS & EMBROIDERED PATCHES MADE TO YOUR DESIGN 303 667-4940 P0 Box 1615Loveland COB0539 durable skis made lighweight aluminum feature unique steel spring holds ski rigid flight plus elevates axle above ski no modification current gear wire needed can go wheels skis seconds sides main skis also have special edge allows excellent tracking icy surfaces available three sizes can ordered trikes just mains order please send check money order MN add 6% sales tax Canada send US money order FREE SHIPPING Allow 2 weeks delivery Phone inquiries after 100 OSE 20-30 Trike2400Mains 2100 NORTHERN40 Trike2880Mains 2400 MODELING60 Trike3200Mains 2720 PRODUCTS PO Box 21181 ColumbIa Heights MN 55421 612-781-7333 Make cowl solid block use laminated pieces Carve sand shape Sand rest model cross sections shown paying particular attention rounding leading edge spars cowl held small wood screws front Keep rear alignment pins short cowl can removed prop spinner place used 1 A-in Merco spinner can difficult find side pond cant locate Merco reshape nose accommodate 1 -in spinner Extra scrap material will required right side engine mounts fair larger spinner dont reduce engine offset accomplish Perhaps spinner manufacturers will soon begin making spinners under 1 /2 ought good market particularly because availability newer /2A engines Covering finishing Choose covering material carefully plastic heat-shrin]cable materials will shrivel up diesel fuel Ive tried several poor results have good luck MonoKote Micafilm An alternative use old-fashioned dope finishes over covering material choice Fuelproof paint required Cover model install tip skids installed canopy after first few flights cut %2-in slit rear Sig five-inch canopy slit followed centerline far enough clear rudder aft portion canopy positioned either side rudder Flying Balanced center-of-gravity CG location shown plan Arrow will stable yet highly responsive Moving CG aft makes model bit twitchy Performance excellent no surprises fly plane 35-ft 012in lines Its outstanding Stunt flier ultimate high-speed performanceand great Combat machineleave off upper fuselage section landing gear add Shuriken prefer torque drop DC Sabre 09 diesel mounts Move firewall rearward accommodate longer heavier engine leaving nose length unchanged maintain CGand enjoy extra power Diesel engines have begun catch countrys RC fliers Eric Clutton having difficulty maintaining inventory RC versions Control Line fraternity wont far behind youre interested ease operation fuel economy good smooth torquy ILL FL Y WHA T FIX Special Fast Turnaround Now Available CALL 4-Frequency Conversion $4000 4-Includes Crystals Certification RCD AM & FM 7 Channel Receiver Special exclusive 6 meters -$7995 TX conversion avaitablel Full 1991 Specsl Rx alone 72/75 mhz-$6995 Order Model RCD100 Futabla G AM$6995 Model RODiSO Futabla J AM$6995 Model RCD200 Futabla J FM$6995 Model RCD300 Airtronic AM$6995 Model RCD150KB Kratt K-Line B$6995 Model RCD15OJR JR AM$6995 Model RCD1 50TH Tower 500$6995 Match tuned Gold 1991 Tx$7495 Tuned aligned updating Tx$7995 Tuned aligned Tx trequency change . $8995 Call Today Ultra Narrow Band AM Receiver Model KMRDC4-7A Years developing worth wait Features Dual conversion AGC Dual Crystal Ceramic Filters 50 53 72 75 Mhz Connectors Kraft styles Deans World & specials Specifications Size 275 70mm x 165 415mm x 825 205mm Weight 165 oz Working Voltage 38 60 VDC Temperature -10 12IYF 10 Khz spacing Bandwidth 1- 85 khz 60db down 30lP 3db Image 60db down Service ACe Cirrus EK Futaba Heathkit HobbyshaCk JR KGL K-Line KO Propo Kraft KSE Logitrol Novak Royal Tower Hobbies World Enaines Spectrum Analyzers Calibrated Test Instruments Large Inventory RIC Parts Crystals 6 Meter Specials List Prices Exceeds AMA Rx Guidelines 4 Channel $9495 5 Channel $9995 6 Channel $10495 7 Channel $10995 Pro-Line Units add $1000 Dealers Discounts available Rx Trade $5-$10 Send Self Addressed Envelope Brochures UPS US Mail Federal Express COD Shipping Charges Extra Mastercard Visa Accepted Kraft Midwest Inc RADI115 E Main Northville MI 48167 313 348-0085 FAX 313 348-4175 power diesels way go hA Stunt competition sport flying Arrow hard beat Power diesel stand ready amazed carefree small models can both operate fly I] AMA/NFFS/Murphy Continued page 14 still widely used readily available new CS Shuriken racing engines copped first three places event models used wing areas 300 sq range added power evident seemed jump away launch much faster rate accustomed Cox engines Ed Keck utilized CS engine set up Galbreath win Robert Dunham II Jean Pailet following Shurikens second third place Jean lost first Shuriken test flight last Nationals Would believe finder returned perfect shape AMA trailer during week Some guys have luck Jim Troutman lacked just three seconds max out win Junior age division Steven Landy stopped Warren Kurths string consecutive Nationals wins four Steven established new Category III record 020 Payload event December 1991 145
Edition: Model Aviation - 1991/12
Page Numbers: 54, 55, 56, 144, 145
Designed double ball bearing PAW 049 diesel engine 254-sqin model opens new vistas competition Barry Baxter RECENT ADVANCES engine technology rapidly squeezing out venerable Cox Tee Dees modeling competition Hot-rod Shurikens CSs delivering high performance high rpm have broadened expectations about what engine can Speed Racing Combat fliers benefiting Stunt sport fliers have discovered double ball bearing PAW 049 diesel engine provides excellent Stunt performance one-third price Shuriken PAW 049 far consistently smooth running Cox Tee Dee Its also remarkably easy start simple adjust maximum power Thats 1/ZA Arrow comes designed model take full advantage PAW 049 diesels strengths engine swings 7 x 4 propeller easily pulls 254-sq-in airplane through pattern authority PAW 049 can ordered Eric Clutton 913 Cedar Lane Tullahoma TN 37388 cost about $70 excellent double ball bearing engine Its available both Control Line Scale Radio Control Scale versions 049 35 offers outstanding idling characteristics either application PAW 35 has won Stunt British Nationals last three years 049 first tried 200-sq-in Stork profile Nobler look-alike successfully built Tee Dee Stork has flaps employs rather thin airfoil 2/2-oz engines extra ounce weight lower speed exposed airfoils deficiencies Loops became amazingly wide Obviously large-area wing needed carry weight PAW diesels like Inspiration came two 1950s-vintage Bill Netzeband flying wing designs Half Fast Combat Fierce Arrow Stunt flying wing has proven efficient way gain 54 Model Aviation Above Our author finished flying wing design striking effect yellow MonoKote black MonoKote Trim Sheet sunburats fuselage fin sunburst pattern painted Black Baron black edged white trim tape Clear Black Baron keeps tape lift ing Below look underside model shows landing gear tip skid setup author watershed V2A flying wing needed large wing offset ex tra weight PAW 049 diesel PAW takes through entire pattern sin gle run obvious competitive advantage Full-Size Plans Available . See Page 192 r74 4 ANNICASS N SNAWN BARRY IGAXTER maximum wing area least weight early designs still perform admirably Old-Timer competition 254-sq-in 10A-oz hA model does credit genreand marks watershed Stunt competition Stunt contests dominated Tee Dee-powered models flier made farthest through pattern before engine quit usually won PAW 049-powered hA Arrow makes incomplete patterns thing past unless fly Stunt way forget maneuver two common problem will overruns engine barely sips fuel will run about 10 minutes ounce juice use Red Max Fuel available FHS Supply Inc 239 Bethel Church Rd Clover SC 29710 company mixes recipe 35% ether 20% castor 15% amyl nitrate balance kerosene brew has worked quite well diesel sizes current nitro shortage gives diesel fuel additional advantage availability stable price Because slower higher torque characteristics diesel engines deliver power band lends itself much better Stunt flying high-rpm glow engines Most current engines have modified provide sort power its first flight hA Arrow exceeded highest expectations flaw slight twist wing removed heat gun Test flown sea level again 5000 ft model flew pattern both altitudes high altitude however 7 x 4 propeller too much little engine lost rpm through maneuvers Substituting 7 x 3 propeller would have made engine efficient height PAW 049 starts runs same compression setting little tuning required once initial settings found high-altitude operation compression screw turned about one-eighth turn needle valve adjusted leaner setting Construction Building modelor indeed full-size craftfrom working drawing fraught difficulties usually build airplane draw results time did other way around sure enough make changes led some peculiar building techniques Ive since worked out efficient method shown some photos December 1991 55 basic wing planform under construction Use power pack assembly space No 1 ribs doublers Note spars leading edges reach centeriine fully assembled power pack before Engine tank installation complete except addition firewall lower cowl block shortened fit re designed nose model originally de signed much longer nose plan Its described instructions follow Begin cutting out parts make kit Wing sure use /16 hard balsa least No 3 4 ribs Since ribs unsupported good part length tend become distorted covering material shrunk Draw engine mount reference lines doublers ensure alignment mounts installed Assemble wing planform allowing leading edge 3A6 spars join centerline will trimmed back later Leave No 1 ribs doublers loose until power pack assembly bellcrank mount ready install Install fixed flaps wing tips including fairings gussets tip skids Add 14 -oz tip weight Make sure flaps aligned chord line wing Engine mounting power pack landing gear Make belly block either A-in balsa block laminating A-in 14-in sheet together Assemble power pack gluing engine mounts belly block Check engine mount blocks parallel correct distance apart Bend A6 landing gear wire shape shown assemble landing gear sandwich Slide landing gear power pack assembly wing assembly Align No 1 ribs doublers glue place Cut out lower spar glue landing gear sandwich position Install Goldberg nylon bellcrank 020 piano wire lead-outs lead-out guides Cut away leading edge spars wing center section install power Continued page 144 56 Model Aviation landing gear sanawicn nas neen glued place bellcrank has installed Tip skid detail showing tairing triangular gusset FOX 2-4 Cycle Special Glow Plug 40702 Miracle Plug totally new concept glow plug design Instead using idle bar MIRACLE PLUG built pre-combustion chamber important thing glow plug retains heat better other glow plug know Try notice much smoother motor responds throttle commands Also will probably able fly less intro fuel Try low intro fuel wouldnt rev-out before Tests also show reduced fuel consumption cases WARNING! motor will probably idle faster re-set throttle erwise might able land Hard believe rse check out MIRACLE PLUG case Youll love FLY AMERICAN *** FLY FOX FOX MANUFACTURINO COMPANY July column simply invite reader feelings about EAA idea posing query came few readers incidentally particular some past reader letters comments questioned function value organization Some felt EAA focused interests very few E-fliers namely specializing highest possible Electric performance such may representing interests E-fliers AMA July column intended ask feelings about whether matters attendant question whether its time change EAA time 5305 Towsofl Avenue Fort Smith AR 72901 501 6461856 promised pass along results survey what Im now doing loud clear lack response view very strong message EAA Nuff said final column 1991 ends Please enclose SASE letter requesting response have good Electric fall season RC Helicopters/Jolly Continued page 53 crankshaft PLT allows re tighten prop nut removing engine machine PLT quality unit comes explicit instructions its use must warn you over torque prop-nut could cause serious damage piston connecting rod careful take easy other hand PLT looks much safer certainly desirable stuffing dowel exhaust port enginesomething Ive witnessed other fliers doing Concepts Board Systems can reached 7210 Jordan Ave Suite D37 Canoga Park CA 91303 818/999-3952 BCNU Arrow/Baxter Continued page 56 pack assembly making sure engine mounts aligned wing chord butted up landing gear sandwich assembly Build up sides engine mounts scrap balsa nose can faired spinner Install 1A6 wire pushrod add tank floor bulkheads Plank upper lower center section Install fuel tank Tail surfaces Hinge elevator used Goldberg nylon hinges Rather merely cutting slot elevator trailing edge cut shallow notches both surfaces hinges would mounted After installing hinges filled notches Model Magic Install control horn included bellcrank attach pushrod Glue fin Add fuselage sides triangular fillers top Engine installation Note engine offset Ive experimenting concept much favor foreign Combat fliers use good deal engine offsetbut no rudder offsetin straight airframe straight fin keeps airframe aligned flight path offset thrust maintains line tension combination works well model does foreign designs judging strength showing international competition 144 Model Aviation WE MAKE MIRACLES EVERY DAY 0 N m3oATh bt6 SETS oA6~ 1 aeosyeaP ----- UNA AIRCRAFTIRADIO ID LABEL SETS Identify sIrcsft per AMA safety rules Self stick labels easy apply peerraeeer Seen check set $125 plus 95 P&H $220 six sets 54 pks 195 P951 $5951 BalsadaS EneeryOses PS PaulO New York NY 10021 PINSPATCHES Ltctan rngfim L7 CUSTOM ENAMEL PINS & EMBROIDERED PATCHES MADE TO YOUR DESIGN 303 667-4940 P0 Box 1615Loveland COB0539 durable skis made lighweight aluminum feature unique steel spring holds ski rigid flight plus elevates axle above ski no modification current gear wire needed can go wheels skis seconds sides main skis also have special edge allows excellent tracking icy surfaces available three sizes can ordered trikes just mains order please send check money order MN add 6% sales tax Canada send US money order FREE SHIPPING Allow 2 weeks delivery Phone inquiries after 100 OSE 20-30 Trike2400Mains 2100 NORTHERN40 Trike2880Mains 2400 MODELING60 Trike3200Mains 2720 PRODUCTS PO Box 21181 ColumbIa Heights MN 55421 612-781-7333 Make cowl solid block use laminated pieces Carve sand shape Sand rest model cross sections shown paying particular attention rounding leading edge spars cowl held small wood screws front Keep rear alignment pins short cowl can removed prop spinner place used 1 A-in Merco spinner can difficult find side pond cant locate Merco reshape nose accommodate 1 -in spinner Extra scrap material will required right side engine mounts fair larger spinner dont reduce engine offset accomplish Perhaps spinner manufacturers will soon begin making spinners under 1 /2 ought good market particularly because availability newer /2A engines Covering finishing Choose covering material carefully plastic heat-shrin]cable materials will shrivel up diesel fuel Ive tried several poor results have good luck MonoKote Micafilm An alternative use old-fashioned dope finishes over covering material choice Fuelproof paint required Cover model install tip skids installed canopy after first few flights cut %2-in slit rear Sig five-inch canopy slit followed centerline far enough clear rudder aft portion canopy positioned either side rudder Flying Balanced center-of-gravity CG location shown plan Arrow will stable yet highly responsive Moving CG aft makes model bit twitchy Performance excellent no surprises fly plane 35-ft 012in lines Its outstanding Stunt flier ultimate high-speed performanceand great Combat machineleave off upper fuselage section landing gear add Shuriken prefer torque drop DC Sabre 09 diesel mounts Move firewall rearward accommodate longer heavier engine leaving nose length unchanged maintain CGand enjoy extra power Diesel engines have begun catch countrys RC fliers Eric Clutton having difficulty maintaining inventory RC versions Control Line fraternity wont far behind youre interested ease operation fuel economy good smooth torquy ILL FL Y WHA T FIX Special Fast Turnaround Now Available CALL 4-Frequency Conversion $4000 4-Includes Crystals Certification RCD AM & FM 7 Channel Receiver Special exclusive 6 meters -$7995 TX conversion avaitablel Full 1991 Specsl Rx alone 72/75 mhz-$6995 Order Model RCD100 Futabla G AM$6995 Model RODiSO Futabla J AM$6995 Model RCD200 Futabla J FM$6995 Model RCD300 Airtronic AM$6995 Model RCD150KB Kratt K-Line B$6995 Model RCD15OJR JR AM$6995 Model RCD1 50TH Tower 500$6995 Match tuned Gold 1991 Tx$7495 Tuned aligned updating Tx$7995 Tuned aligned Tx trequency change . $8995 Call Today Ultra Narrow Band AM Receiver Model KMRDC4-7A Years developing worth wait Features Dual conversion AGC Dual Crystal Ceramic Filters 50 53 72 75 Mhz Connectors Kraft styles Deans World & specials Specifications Size 275 70mm x 165 415mm x 825 205mm Weight 165 oz Working Voltage 38 60 VDC Temperature -10 12IYF 10 Khz spacing Bandwidth 1- 85 khz 60db down 30lP 3db Image 60db down Service ACe Cirrus EK Futaba Heathkit HobbyshaCk JR KGL K-Line KO Propo Kraft KSE Logitrol Novak Royal Tower Hobbies World Enaines Spectrum Analyzers Calibrated Test Instruments Large Inventory RIC Parts Crystals 6 Meter Specials List Prices Exceeds AMA Rx Guidelines 4 Channel $9495 5 Channel $9995 6 Channel $10495 7 Channel $10995 Pro-Line Units add $1000 Dealers Discounts available Rx Trade $5-$10 Send Self Addressed Envelope Brochures UPS US Mail Federal Express COD Shipping Charges Extra Mastercard Visa Accepted Kraft Midwest Inc RADI115 E Main Northville MI 48167 313 348-0085 FAX 313 348-4175 power diesels way go hA Stunt competition sport flying Arrow hard beat Power diesel stand ready amazed carefree small models can both operate fly I] AMA/NFFS/Murphy Continued page 14 still widely used readily available new CS Shuriken racing engines copped first three places event models used wing areas 300 sq range added power evident seemed jump away launch much faster rate accustomed Cox engines Ed Keck utilized CS engine set up Galbreath win Robert Dunham II Jean Pailet following Shurikens second third place Jean lost first Shuriken test flight last Nationals Would believe finder returned perfect shape AMA trailer during week Some guys have luck Jim Troutman lacked just three seconds max out win Junior age division Steven Landy stopped Warren Kurths string consecutive Nationals wins four Steven established new Category III record 020 Payload event December 1991 145
Edition: Model Aviation - 1991/12
Page Numbers: 54, 55, 56, 144, 145
Designed double ball bearing PAW 049 diesel engine 254-sqin model opens new vistas competition Barry Baxter RECENT ADVANCES engine technology rapidly squeezing out venerable Cox Tee Dees modeling competition Hot-rod Shurikens CSs delivering high performance high rpm have broadened expectations about what engine can Speed Racing Combat fliers benefiting Stunt sport fliers have discovered double ball bearing PAW 049 diesel engine provides excellent Stunt performance one-third price Shuriken PAW 049 far consistently smooth running Cox Tee Dee Its also remarkably easy start simple adjust maximum power Thats 1/ZA Arrow comes designed model take full advantage PAW 049 diesels strengths engine swings 7 x 4 propeller easily pulls 254-sq-in airplane through pattern authority PAW 049 can ordered Eric Clutton 913 Cedar Lane Tullahoma TN 37388 cost about $70 excellent double ball bearing engine Its available both Control Line Scale Radio Control Scale versions 049 35 offers outstanding idling characteristics either application PAW 35 has won Stunt British Nationals last three years 049 first tried 200-sq-in Stork profile Nobler look-alike successfully built Tee Dee Stork has flaps employs rather thin airfoil 2/2-oz engines extra ounce weight lower speed exposed airfoils deficiencies Loops became amazingly wide Obviously large-area wing needed carry weight PAW diesels like Inspiration came two 1950s-vintage Bill Netzeband flying wing designs Half Fast Combat Fierce Arrow Stunt flying wing has proven efficient way gain 54 Model Aviation Above Our author finished flying wing design striking effect yellow MonoKote black MonoKote Trim Sheet sunburats fuselage fin sunburst pattern painted Black Baron black edged white trim tape Clear Black Baron keeps tape lift ing Below look underside model shows landing gear tip skid setup author watershed V2A flying wing needed large wing offset ex tra weight PAW 049 diesel PAW takes through entire pattern sin gle run obvious competitive advantage Full-Size Plans Available . See Page 192 r74 4 ANNICASS N SNAWN BARRY IGAXTER maximum wing area least weight early designs still perform admirably Old-Timer competition 254-sq-in 10A-oz hA model does credit genreand marks watershed Stunt competition Stunt contests dominated Tee Dee-powered models flier made farthest through pattern before engine quit usually won PAW 049-powered hA Arrow makes incomplete patterns thing past unless fly Stunt way forget maneuver two common problem will overruns engine barely sips fuel will run about 10 minutes ounce juice use Red Max Fuel available FHS Supply Inc 239 Bethel Church Rd Clover SC 29710 company mixes recipe 35% ether 20% castor 15% amyl nitrate balance kerosene brew has worked quite well diesel sizes current nitro shortage gives diesel fuel additional advantage availability stable price Because slower higher torque characteristics diesel engines deliver power band lends itself much better Stunt flying high-rpm glow engines Most current engines have modified provide sort power its first flight hA Arrow exceeded highest expectations flaw slight twist wing removed heat gun Test flown sea level again 5000 ft model flew pattern both altitudes high altitude however 7 x 4 propeller too much little engine lost rpm through maneuvers Substituting 7 x 3 propeller would have made engine efficient height PAW 049 starts runs same compression setting little tuning required once initial settings found high-altitude operation compression screw turned about one-eighth turn needle valve adjusted leaner setting Construction Building modelor indeed full-size craftfrom working drawing fraught difficulties usually build airplane draw results time did other way around sure enough make changes led some peculiar building techniques Ive since worked out efficient method shown some photos December 1991 55 basic wing planform under construction Use power pack assembly space No 1 ribs doublers Note spars leading edges reach centeriine fully assembled power pack before Engine tank installation complete except addition firewall lower cowl block shortened fit re designed nose model originally de signed much longer nose plan Its described instructions follow Begin cutting out parts make kit Wing sure use /16 hard balsa least No 3 4 ribs Since ribs unsupported good part length tend become distorted covering material shrunk Draw engine mount reference lines doublers ensure alignment mounts installed Assemble wing planform allowing leading edge 3A6 spars join centerline will trimmed back later Leave No 1 ribs doublers loose until power pack assembly bellcrank mount ready install Install fixed flaps wing tips including fairings gussets tip skids Add 14 -oz tip weight Make sure flaps aligned chord line wing Engine mounting power pack landing gear Make belly block either A-in balsa block laminating A-in 14-in sheet together Assemble power pack gluing engine mounts belly block Check engine mount blocks parallel correct distance apart Bend A6 landing gear wire shape shown assemble landing gear sandwich Slide landing gear power pack assembly wing assembly Align No 1 ribs doublers glue place Cut out lower spar glue landing gear sandwich position Install Goldberg nylon bellcrank 020 piano wire lead-outs lead-out guides Cut away leading edge spars wing center section install power Continued page 144 56 Model Aviation landing gear sanawicn nas neen glued place bellcrank has installed Tip skid detail showing tairing triangular gusset FOX 2-4 Cycle Special Glow Plug 40702 Miracle Plug totally new concept glow plug design Instead using idle bar MIRACLE PLUG built pre-combustion chamber important thing glow plug retains heat better other glow plug know Try notice much smoother motor responds throttle commands Also will probably able fly less intro fuel Try low intro fuel wouldnt rev-out before Tests also show reduced fuel consumption cases WARNING! motor will probably idle faster re-set throttle erwise might able land Hard believe rse check out MIRACLE PLUG case Youll love FLY AMERICAN *** FLY FOX FOX MANUFACTURINO COMPANY July column simply invite reader feelings about EAA idea posing query came few readers incidentally particular some past reader letters comments questioned function value organization Some felt EAA focused interests very few E-fliers namely specializing highest possible Electric performance such may representing interests E-fliers AMA July column intended ask feelings about whether matters attendant question whether its time change EAA time 5305 Towsofl Avenue Fort Smith AR 72901 501 6461856 promised pass along results survey what Im now doing loud clear lack response view very strong message EAA Nuff said final column 1991 ends Please enclose SASE letter requesting response have good Electric fall season RC Helicopters/Jolly Continued page 53 crankshaft PLT allows re tighten prop nut removing engine machine PLT quality unit comes explicit instructions its use must warn you over torque prop-nut could cause serious damage piston connecting rod careful take easy other hand PLT looks much safer certainly desirable stuffing dowel exhaust port enginesomething Ive witnessed other fliers doing Concepts Board Systems can reached 7210 Jordan Ave Suite D37 Canoga Park CA 91303 818/999-3952 BCNU Arrow/Baxter Continued page 56 pack assembly making sure engine mounts aligned wing chord butted up landing gear sandwich assembly Build up sides engine mounts scrap balsa nose can faired spinner Install 1A6 wire pushrod add tank floor bulkheads Plank upper lower center section Install fuel tank Tail surfaces Hinge elevator used Goldberg nylon hinges Rather merely cutting slot elevator trailing edge cut shallow notches both surfaces hinges would mounted After installing hinges filled notches Model Magic Install control horn included bellcrank attach pushrod Glue fin Add fuselage sides triangular fillers top Engine installation Note engine offset Ive experimenting concept much favor foreign Combat fliers use good deal engine offsetbut no rudder offsetin straight airframe straight fin keeps airframe aligned flight path offset thrust maintains line tension combination works well model does foreign designs judging strength showing international competition 144 Model Aviation WE MAKE MIRACLES EVERY DAY 0 N m3oATh bt6 SETS oA6~ 1 aeosyeaP ----- UNA AIRCRAFTIRADIO ID LABEL SETS Identify sIrcsft per AMA safety rules Self stick labels easy apply peerraeeer Seen check set $125 plus 95 P&H $220 six sets 54 pks 195 P951 $5951 BalsadaS EneeryOses PS PaulO New York NY 10021 PINSPATCHES Ltctan rngfim L7 CUSTOM ENAMEL PINS & EMBROIDERED PATCHES MADE TO YOUR DESIGN 303 667-4940 P0 Box 1615Loveland COB0539 durable skis made lighweight aluminum feature unique steel spring holds ski rigid flight plus elevates axle above ski no modification current gear wire needed can go wheels skis seconds sides main skis also have special edge allows excellent tracking icy surfaces available three sizes can ordered trikes just mains order please send check money order MN add 6% sales tax Canada send US money order FREE SHIPPING Allow 2 weeks delivery Phone inquiries after 100 OSE 20-30 Trike2400Mains 2100 NORTHERN40 Trike2880Mains 2400 MODELING60 Trike3200Mains 2720 PRODUCTS PO Box 21181 ColumbIa Heights MN 55421 612-781-7333 Make cowl solid block use laminated pieces Carve sand shape Sand rest model cross sections shown paying particular attention rounding leading edge spars cowl held small wood screws front Keep rear alignment pins short cowl can removed prop spinner place used 1 A-in Merco spinner can difficult find side pond cant locate Merco reshape nose accommodate 1 -in spinner Extra scrap material will required right side engine mounts fair larger spinner dont reduce engine offset accomplish Perhaps spinner manufacturers will soon begin making spinners under 1 /2 ought good market particularly because availability newer /2A engines Covering finishing Choose covering material carefully plastic heat-shrin]cable materials will shrivel up diesel fuel Ive tried several poor results have good luck MonoKote Micafilm An alternative use old-fashioned dope finishes over covering material choice Fuelproof paint required Cover model install tip skids installed canopy after first few flights cut %2-in slit rear Sig five-inch canopy slit followed centerline far enough clear rudder aft portion canopy positioned either side rudder Flying Balanced center-of-gravity CG location shown plan Arrow will stable yet highly responsive Moving CG aft makes model bit twitchy Performance excellent no surprises fly plane 35-ft 012in lines Its outstanding Stunt flier ultimate high-speed performanceand great Combat machineleave off upper fuselage section landing gear add Shuriken prefer torque drop DC Sabre 09 diesel mounts Move firewall rearward accommodate longer heavier engine leaving nose length unchanged maintain CGand enjoy extra power Diesel engines have begun catch countrys RC fliers Eric Clutton having difficulty maintaining inventory RC versions Control Line fraternity wont far behind youre interested ease operation fuel economy good smooth torquy ILL FL Y WHA T FIX Special Fast Turnaround Now Available CALL 4-Frequency Conversion $4000 4-Includes Crystals Certification RCD AM & FM 7 Channel Receiver Special exclusive 6 meters -$7995 TX conversion avaitablel Full 1991 Specsl Rx alone 72/75 mhz-$6995 Order Model RCD100 Futabla G AM$6995 Model RODiSO Futabla J AM$6995 Model RCD200 Futabla J FM$6995 Model RCD300 Airtronic AM$6995 Model RCD150KB Kratt K-Line B$6995 Model RCD15OJR JR AM$6995 Model RCD1 50TH Tower 500$6995 Match tuned Gold 1991 Tx$7495 Tuned aligned updating Tx$7995 Tuned aligned Tx trequency change . $8995 Call Today Ultra Narrow Band AM Receiver Model KMRDC4-7A Years developing worth wait Features Dual conversion AGC Dual Crystal Ceramic Filters 50 53 72 75 Mhz Connectors Kraft styles Deans World & specials Specifications Size 275 70mm x 165 415mm x 825 205mm Weight 165 oz Working Voltage 38 60 VDC Temperature -10 12IYF 10 Khz spacing Bandwidth 1- 85 khz 60db down 30lP 3db Image 60db down Service ACe Cirrus EK Futaba Heathkit HobbyshaCk JR KGL K-Line KO Propo Kraft KSE Logitrol Novak Royal Tower Hobbies World Enaines Spectrum Analyzers Calibrated Test Instruments Large Inventory RIC Parts Crystals 6 Meter Specials List Prices Exceeds AMA Rx Guidelines 4 Channel $9495 5 Channel $9995 6 Channel $10495 7 Channel $10995 Pro-Line Units add $1000 Dealers Discounts available Rx Trade $5-$10 Send Self Addressed Envelope Brochures UPS US Mail Federal Express COD Shipping Charges Extra Mastercard Visa Accepted Kraft Midwest Inc RADI115 E Main Northville MI 48167 313 348-0085 FAX 313 348-4175 power diesels way go hA Stunt competition sport flying Arrow hard beat Power diesel stand ready amazed carefree small models can both operate fly I] AMA/NFFS/Murphy Continued page 14 still widely used readily available new CS Shuriken racing engines copped first three places event models used wing areas 300 sq range added power evident seemed jump away launch much faster rate accustomed Cox engines Ed Keck utilized CS engine set up Galbreath win Robert Dunham II Jean Pailet following Shurikens second third place Jean lost first Shuriken test flight last Nationals Would believe finder returned perfect shape AMA trailer during week Some guys have luck Jim Troutman lacked just three seconds max out win Junior age division Steven Landy stopped Warren Kurths string consecutive Nationals wins four Steven established new Category III record 020 Payload event December 1991 145
Edition: Model Aviation - 1991/12
Page Numbers: 54, 55, 56, 144, 145
Designed double ball bearing PAW 049 diesel engine 254-sqin model opens new vistas competition Barry Baxter RECENT ADVANCES engine technology rapidly squeezing out venerable Cox Tee Dees modeling competition Hot-rod Shurikens CSs delivering high performance high rpm have broadened expectations about what engine can Speed Racing Combat fliers benefiting Stunt sport fliers have discovered double ball bearing PAW 049 diesel engine provides excellent Stunt performance one-third price Shuriken PAW 049 far consistently smooth running Cox Tee Dee Its also remarkably easy start simple adjust maximum power Thats 1/ZA Arrow comes designed model take full advantage PAW 049 diesels strengths engine swings 7 x 4 propeller easily pulls 254-sq-in airplane through pattern authority PAW 049 can ordered Eric Clutton 913 Cedar Lane Tullahoma TN 37388 cost about $70 excellent double ball bearing engine Its available both Control Line Scale Radio Control Scale versions 049 35 offers outstanding idling characteristics either application PAW 35 has won Stunt British Nationals last three years 049 first tried 200-sq-in Stork profile Nobler look-alike successfully built Tee Dee Stork has flaps employs rather thin airfoil 2/2-oz engines extra ounce weight lower speed exposed airfoils deficiencies Loops became amazingly wide Obviously large-area wing needed carry weight PAW diesels like Inspiration came two 1950s-vintage Bill Netzeband flying wing designs Half Fast Combat Fierce Arrow Stunt flying wing has proven efficient way gain 54 Model Aviation Above Our author finished flying wing design striking effect yellow MonoKote black MonoKote Trim Sheet sunburats fuselage fin sunburst pattern painted Black Baron black edged white trim tape Clear Black Baron keeps tape lift ing Below look underside model shows landing gear tip skid setup author watershed V2A flying wing needed large wing offset ex tra weight PAW 049 diesel PAW takes through entire pattern sin gle run obvious competitive advantage Full-Size Plans Available . See Page 192 r74 4 ANNICASS N SNAWN BARRY IGAXTER maximum wing area least weight early designs still perform admirably Old-Timer competition 254-sq-in 10A-oz hA model does credit genreand marks watershed Stunt competition Stunt contests dominated Tee Dee-powered models flier made farthest through pattern before engine quit usually won PAW 049-powered hA Arrow makes incomplete patterns thing past unless fly Stunt way forget maneuver two common problem will overruns engine barely sips fuel will run about 10 minutes ounce juice use Red Max Fuel available FHS Supply Inc 239 Bethel Church Rd Clover SC 29710 company mixes recipe 35% ether 20% castor 15% amyl nitrate balance kerosene brew has worked quite well diesel sizes current nitro shortage gives diesel fuel additional advantage availability stable price Because slower higher torque characteristics diesel engines deliver power band lends itself much better Stunt flying high-rpm glow engines Most current engines have modified provide sort power its first flight hA Arrow exceeded highest expectations flaw slight twist wing removed heat gun Test flown sea level again 5000 ft model flew pattern both altitudes high altitude however 7 x 4 propeller too much little engine lost rpm through maneuvers Substituting 7 x 3 propeller would have made engine efficient height PAW 049 starts runs same compression setting little tuning required once initial settings found high-altitude operation compression screw turned about one-eighth turn needle valve adjusted leaner setting Construction Building modelor indeed full-size craftfrom working drawing fraught difficulties usually build airplane draw results time did other way around sure enough make changes led some peculiar building techniques Ive since worked out efficient method shown some photos December 1991 55 basic wing planform under construction Use power pack assembly space No 1 ribs doublers Note spars leading edges reach centeriine fully assembled power pack before Engine tank installation complete except addition firewall lower cowl block shortened fit re designed nose model originally de signed much longer nose plan Its described instructions follow Begin cutting out parts make kit Wing sure use /16 hard balsa least No 3 4 ribs Since ribs unsupported good part length tend become distorted covering material shrunk Draw engine mount reference lines doublers ensure alignment mounts installed Assemble wing planform allowing leading edge 3A6 spars join centerline will trimmed back later Leave No 1 ribs doublers loose until power pack assembly bellcrank mount ready install Install fixed flaps wing tips including fairings gussets tip skids Add 14 -oz tip weight Make sure flaps aligned chord line wing Engine mounting power pack landing gear Make belly block either A-in balsa block laminating A-in 14-in sheet together Assemble power pack gluing engine mounts belly block Check engine mount blocks parallel correct distance apart Bend A6 landing gear wire shape shown assemble landing gear sandwich Slide landing gear power pack assembly wing assembly Align No 1 ribs doublers glue place Cut out lower spar glue landing gear sandwich position Install Goldberg nylon bellcrank 020 piano wire lead-outs lead-out guides Cut away leading edge spars wing center section install power Continued page 144 56 Model Aviation landing gear sanawicn nas neen glued place bellcrank has installed Tip skid detail showing tairing triangular gusset FOX 2-4 Cycle Special Glow Plug 40702 Miracle Plug totally new concept glow plug design Instead using idle bar MIRACLE PLUG built pre-combustion chamber important thing glow plug retains heat better other glow plug know Try notice much smoother motor responds throttle commands Also will probably able fly less intro fuel Try low intro fuel wouldnt rev-out before Tests also show reduced fuel consumption cases WARNING! motor will probably idle faster re-set throttle erwise might able land Hard believe rse check out MIRACLE PLUG case Youll love FLY AMERICAN *** FLY FOX FOX MANUFACTURINO COMPANY July column simply invite reader feelings about EAA idea posing query came few readers incidentally particular some past reader letters comments questioned function value organization Some felt EAA focused interests very few E-fliers namely specializing highest possible Electric performance such may representing interests E-fliers AMA July column intended ask feelings about whether matters attendant question whether its time change EAA time 5305 Towsofl Avenue Fort Smith AR 72901 501 6461856 promised pass along results survey what Im now doing loud clear lack response view very strong message EAA Nuff said final column 1991 ends Please enclose SASE letter requesting response have good Electric fall season RC Helicopters/Jolly Continued page 53 crankshaft PLT allows re tighten prop nut removing engine machine PLT quality unit comes explicit instructions its use must warn you over torque prop-nut could cause serious damage piston connecting rod careful take easy other hand PLT looks much safer certainly desirable stuffing dowel exhaust port enginesomething Ive witnessed other fliers doing Concepts Board Systems can reached 7210 Jordan Ave Suite D37 Canoga Park CA 91303 818/999-3952 BCNU Arrow/Baxter Continued page 56 pack assembly making sure engine mounts aligned wing chord butted up landing gear sandwich assembly Build up sides engine mounts scrap balsa nose can faired spinner Install 1A6 wire pushrod add tank floor bulkheads Plank upper lower center section Install fuel tank Tail surfaces Hinge elevator used Goldberg nylon hinges Rather merely cutting slot elevator trailing edge cut shallow notches both surfaces hinges would mounted After installing hinges filled notches Model Magic Install control horn included bellcrank attach pushrod Glue fin Add fuselage sides triangular fillers top Engine installation Note engine offset Ive experimenting concept much favor foreign Combat fliers use good deal engine offsetbut no rudder offsetin straight airframe straight fin keeps airframe aligned flight path offset thrust maintains line tension combination works well model does foreign designs judging strength showing international competition 144 Model Aviation WE MAKE MIRACLES EVERY DAY 0 N m3oATh bt6 SETS oA6~ 1 aeosyeaP ----- UNA AIRCRAFTIRADIO ID LABEL SETS Identify sIrcsft per AMA safety rules Self stick labels easy apply peerraeeer Seen check set $125 plus 95 P&H $220 six sets 54 pks 195 P951 $5951 BalsadaS EneeryOses PS PaulO New York NY 10021 PINSPATCHES Ltctan rngfim L7 CUSTOM ENAMEL PINS & EMBROIDERED PATCHES MADE TO YOUR DESIGN 303 667-4940 P0 Box 1615Loveland COB0539 durable skis made lighweight aluminum feature unique steel spring holds ski rigid flight plus elevates axle above ski no modification current gear wire needed can go wheels skis seconds sides main skis also have special edge allows excellent tracking icy surfaces available three sizes can ordered trikes just mains order please send check money order MN add 6% sales tax Canada send US money order FREE SHIPPING Allow 2 weeks delivery Phone inquiries after 100 OSE 20-30 Trike2400Mains 2100 NORTHERN40 Trike2880Mains 2400 MODELING60 Trike3200Mains 2720 PRODUCTS PO Box 21181 ColumbIa Heights MN 55421 612-781-7333 Make cowl solid block use laminated pieces Carve sand shape Sand rest model cross sections shown paying particular attention rounding leading edge spars cowl held small wood screws front Keep rear alignment pins short cowl can removed prop spinner place used 1 A-in Merco spinner can difficult find side pond cant locate Merco reshape nose accommodate 1 -in spinner Extra scrap material will required right side engine mounts fair larger spinner dont reduce engine offset accomplish Perhaps spinner manufacturers will soon begin making spinners under 1 /2 ought good market particularly because availability newer /2A engines Covering finishing Choose covering material carefully plastic heat-shrin]cable materials will shrivel up diesel fuel Ive tried several poor results have good luck MonoKote Micafilm An alternative use old-fashioned dope finishes over covering material choice Fuelproof paint required Cover model install tip skids installed canopy after first few flights cut %2-in slit rear Sig five-inch canopy slit followed centerline far enough clear rudder aft portion canopy positioned either side rudder Flying Balanced center-of-gravity CG location shown plan Arrow will stable yet highly responsive Moving CG aft makes model bit twitchy Performance excellent no surprises fly plane 35-ft 012in lines Its outstanding Stunt flier ultimate high-speed performanceand great Combat machineleave off upper fuselage section landing gear add Shuriken prefer torque drop DC Sabre 09 diesel mounts Move firewall rearward accommodate longer heavier engine leaving nose length unchanged maintain CGand enjoy extra power Diesel engines have begun catch countrys RC fliers Eric Clutton having difficulty maintaining inventory RC versions Control Line fraternity wont far behind youre interested ease operation fuel economy good smooth torquy ILL FL Y WHA T FIX Special Fast Turnaround Now Available CALL 4-Frequency Conversion $4000 4-Includes Crystals Certification RCD AM & FM 7 Channel Receiver Special exclusive 6 meters -$7995 TX conversion avaitablel Full 1991 Specsl Rx alone 72/75 mhz-$6995 Order Model RCD100 Futabla G AM$6995 Model RODiSO Futabla J AM$6995 Model RCD200 Futabla J FM$6995 Model RCD300 Airtronic AM$6995 Model RCD150KB Kratt K-Line B$6995 Model RCD15OJR JR AM$6995 Model RCD1 50TH Tower 500$6995 Match tuned Gold 1991 Tx$7495 Tuned aligned updating Tx$7995 Tuned aligned Tx trequency change . $8995 Call Today Ultra Narrow Band AM Receiver Model KMRDC4-7A Years developing worth wait Features Dual conversion AGC Dual Crystal Ceramic Filters 50 53 72 75 Mhz Connectors Kraft styles Deans World & specials Specifications Size 275 70mm x 165 415mm x 825 205mm Weight 165 oz Working Voltage 38 60 VDC Temperature -10 12IYF 10 Khz spacing Bandwidth 1- 85 khz 60db down 30lP 3db Image 60db down Service ACe Cirrus EK Futaba Heathkit HobbyshaCk JR KGL K-Line KO Propo Kraft KSE Logitrol Novak Royal Tower Hobbies World Enaines Spectrum Analyzers Calibrated Test Instruments Large Inventory RIC Parts Crystals 6 Meter Specials List Prices Exceeds AMA Rx Guidelines 4 Channel $9495 5 Channel $9995 6 Channel $10495 7 Channel $10995 Pro-Line Units add $1000 Dealers Discounts available Rx Trade $5-$10 Send Self Addressed Envelope Brochures UPS US Mail Federal Express COD Shipping Charges Extra Mastercard Visa Accepted Kraft Midwest Inc RADI115 E Main Northville MI 48167 313 348-0085 FAX 313 348-4175 power diesels way go hA Stunt competition sport flying Arrow hard beat Power diesel stand ready amazed carefree small models can both operate fly I] AMA/NFFS/Murphy Continued page 14 still widely used readily available new CS Shuriken racing engines copped first three places event models used wing areas 300 sq range added power evident seemed jump away launch much faster rate accustomed Cox engines Ed Keck utilized CS engine set up Galbreath win Robert Dunham II Jean Pailet following Shurikens second third place Jean lost first Shuriken test flight last Nationals Would believe finder returned perfect shape AMA trailer during week Some guys have luck Jim Troutman lacked just three seconds max out win Junior age division Steven Landy stopped Warren Kurths string consecutive Nationals wins four Steven established new Category III record 020 Payload event December 1991 145
Edition: Model Aviation - 1991/12
Page Numbers: 54, 55, 56, 144, 145
Designed double ball bearing PAW 049 diesel engine 254-sqin model opens new vistas competition Barry Baxter RECENT ADVANCES engine technology rapidly squeezing out venerable Cox Tee Dees modeling competition Hot-rod Shurikens CSs delivering high performance high rpm have broadened expectations about what engine can Speed Racing Combat fliers benefiting Stunt sport fliers have discovered double ball bearing PAW 049 diesel engine provides excellent Stunt performance one-third price Shuriken PAW 049 far consistently smooth running Cox Tee Dee Its also remarkably easy start simple adjust maximum power Thats 1/ZA Arrow comes designed model take full advantage PAW 049 diesels strengths engine swings 7 x 4 propeller easily pulls 254-sq-in airplane through pattern authority PAW 049 can ordered Eric Clutton 913 Cedar Lane Tullahoma TN 37388 cost about $70 excellent double ball bearing engine Its available both Control Line Scale Radio Control Scale versions 049 35 offers outstanding idling characteristics either application PAW 35 has won Stunt British Nationals last three years 049 first tried 200-sq-in Stork profile Nobler look-alike successfully built Tee Dee Stork has flaps employs rather thin airfoil 2/2-oz engines extra ounce weight lower speed exposed airfoils deficiencies Loops became amazingly wide Obviously large-area wing needed carry weight PAW diesels like Inspiration came two 1950s-vintage Bill Netzeband flying wing designs Half Fast Combat Fierce Arrow Stunt flying wing has proven efficient way gain 54 Model Aviation Above Our author finished flying wing design striking effect yellow MonoKote black MonoKote Trim Sheet sunburats fuselage fin sunburst pattern painted Black Baron black edged white trim tape Clear Black Baron keeps tape lift ing Below look underside model shows landing gear tip skid setup author watershed V2A flying wing needed large wing offset ex tra weight PAW 049 diesel PAW takes through entire pattern sin gle run obvious competitive advantage Full-Size Plans Available . See Page 192 r74 4 ANNICASS N SNAWN BARRY IGAXTER maximum wing area least weight early designs still perform admirably Old-Timer competition 254-sq-in 10A-oz hA model does credit genreand marks watershed Stunt competition Stunt contests dominated Tee Dee-powered models flier made farthest through pattern before engine quit usually won PAW 049-powered hA Arrow makes incomplete patterns thing past unless fly Stunt way forget maneuver two common problem will overruns engine barely sips fuel will run about 10 minutes ounce juice use Red Max Fuel available FHS Supply Inc 239 Bethel Church Rd Clover SC 29710 company mixes recipe 35% ether 20% castor 15% amyl nitrate balance kerosene brew has worked quite well diesel sizes current nitro shortage gives diesel fuel additional advantage availability stable price Because slower higher torque characteristics diesel engines deliver power band lends itself much better Stunt flying high-rpm glow engines Most current engines have modified provide sort power its first flight hA Arrow exceeded highest expectations flaw slight twist wing removed heat gun Test flown sea level again 5000 ft model flew pattern both altitudes high altitude however 7 x 4 propeller too much little engine lost rpm through maneuvers Substituting 7 x 3 propeller would have made engine efficient height PAW 049 starts runs same compression setting little tuning required once initial settings found high-altitude operation compression screw turned about one-eighth turn needle valve adjusted leaner setting Construction Building modelor indeed full-size craftfrom working drawing fraught difficulties usually build airplane draw results time did other way around sure enough make changes led some peculiar building techniques Ive since worked out efficient method shown some photos December 1991 55 basic wing planform under construction Use power pack assembly space No 1 ribs doublers Note spars leading edges reach centeriine fully assembled power pack before Engine tank installation complete except addition firewall lower cowl block shortened fit re designed nose model originally de signed much longer nose plan Its described instructions follow Begin cutting out parts make kit Wing sure use /16 hard balsa least No 3 4 ribs Since ribs unsupported good part length tend become distorted covering material shrunk Draw engine mount reference lines doublers ensure alignment mounts installed Assemble wing planform allowing leading edge 3A6 spars join centerline will trimmed back later Leave No 1 ribs doublers loose until power pack assembly bellcrank mount ready install Install fixed flaps wing tips including fairings gussets tip skids Add 14 -oz tip weight Make sure flaps aligned chord line wing Engine mounting power pack landing gear Make belly block either A-in balsa block laminating A-in 14-in sheet together Assemble power pack gluing engine mounts belly block Check engine mount blocks parallel correct distance apart Bend A6 landing gear wire shape shown assemble landing gear sandwich Slide landing gear power pack assembly wing assembly Align No 1 ribs doublers glue place Cut out lower spar glue landing gear sandwich position Install Goldberg nylon bellcrank 020 piano wire lead-outs lead-out guides Cut away leading edge spars wing center section install power Continued page 144 56 Model Aviation landing gear sanawicn nas neen glued place bellcrank has installed Tip skid detail showing tairing triangular gusset FOX 2-4 Cycle Special Glow Plug 40702 Miracle Plug totally new concept glow plug design Instead using idle bar MIRACLE PLUG built pre-combustion chamber important thing glow plug retains heat better other glow plug know Try notice much smoother motor responds throttle commands Also will probably able fly less intro fuel Try low intro fuel wouldnt rev-out before Tests also show reduced fuel consumption cases WARNING! motor will probably idle faster re-set throttle erwise might able land Hard believe rse check out MIRACLE PLUG case Youll love FLY AMERICAN *** FLY FOX FOX MANUFACTURINO COMPANY July column simply invite reader feelings about EAA idea posing query came few readers incidentally particular some past reader letters comments questioned function value organization Some felt EAA focused interests very few E-fliers namely specializing highest possible Electric performance such may representing interests E-fliers AMA July column intended ask feelings about whether matters attendant question whether its time change EAA time 5305 Towsofl Avenue Fort Smith AR 72901 501 6461856 promised pass along results survey what Im now doing loud clear lack response view very strong message EAA Nuff said final column 1991 ends Please enclose SASE letter requesting response have good Electric fall season RC Helicopters/Jolly Continued page 53 crankshaft PLT allows re tighten prop nut removing engine machine PLT quality unit comes explicit instructions its use must warn you over torque prop-nut could cause serious damage piston connecting rod careful take easy other hand PLT looks much safer certainly desirable stuffing dowel exhaust port enginesomething Ive witnessed other fliers doing Concepts Board Systems can reached 7210 Jordan Ave Suite D37 Canoga Park CA 91303 818/999-3952 BCNU Arrow/Baxter Continued page 56 pack assembly making sure engine mounts aligned wing chord butted up landing gear sandwich assembly Build up sides engine mounts scrap balsa nose can faired spinner Install 1A6 wire pushrod add tank floor bulkheads Plank upper lower center section Install fuel tank Tail surfaces Hinge elevator used Goldberg nylon hinges Rather merely cutting slot elevator trailing edge cut shallow notches both surfaces hinges would mounted After installing hinges filled notches Model Magic Install control horn included bellcrank attach pushrod Glue fin Add fuselage sides triangular fillers top Engine installation Note engine offset Ive experimenting concept much favor foreign Combat fliers use good deal engine offsetbut no rudder offsetin straight airframe straight fin keeps airframe aligned flight path offset thrust maintains line tension combination works well model does foreign designs judging strength showing international competition 144 Model Aviation WE MAKE MIRACLES EVERY DAY 0 N m3oATh bt6 SETS oA6~ 1 aeosyeaP ----- UNA AIRCRAFTIRADIO ID LABEL SETS Identify sIrcsft per AMA safety rules Self stick labels easy apply peerraeeer Seen check set $125 plus 95 P&H $220 six sets 54 pks 195 P951 $5951 BalsadaS EneeryOses PS PaulO New York NY 10021 PINSPATCHES Ltctan rngfim L7 CUSTOM ENAMEL PINS & EMBROIDERED PATCHES MADE TO YOUR DESIGN 303 667-4940 P0 Box 1615Loveland COB0539 durable skis made lighweight aluminum feature unique steel spring holds ski rigid flight plus elevates axle above ski no modification current gear wire needed can go wheels skis seconds sides main skis also have special edge allows excellent tracking icy surfaces available three sizes can ordered trikes just mains order please send check money order MN add 6% sales tax Canada send US money order FREE SHIPPING Allow 2 weeks delivery Phone inquiries after 100 OSE 20-30 Trike2400Mains 2100 NORTHERN40 Trike2880Mains 2400 MODELING60 Trike3200Mains 2720 PRODUCTS PO Box 21181 ColumbIa Heights MN 55421 612-781-7333 Make cowl solid block use laminated pieces Carve sand shape Sand rest model cross sections shown paying particular attention rounding leading edge spars cowl held small wood screws front Keep rear alignment pins short cowl can removed prop spinner place used 1 A-in Merco spinner can difficult find side pond cant locate Merco reshape nose accommodate 1 -in spinner Extra scrap material will required right side engine mounts fair larger spinner dont reduce engine offset accomplish Perhaps spinner manufacturers will soon begin making spinners under 1 /2 ought good market particularly because availability newer /2A engines Covering finishing Choose covering material carefully plastic heat-shrin]cable materials will shrivel up diesel fuel Ive tried several poor results have good luck MonoKote Micafilm An alternative use old-fashioned dope finishes over covering material choice Fuelproof paint required Cover model install tip skids installed canopy after first few flights cut %2-in slit rear Sig five-inch canopy slit followed centerline far enough clear rudder aft portion canopy positioned either side rudder Flying Balanced center-of-gravity CG location shown plan Arrow will stable yet highly responsive Moving CG aft makes model bit twitchy Performance excellent no surprises fly plane 35-ft 012in lines Its outstanding Stunt flier ultimate high-speed performanceand great Combat machineleave off upper fuselage section landing gear add Shuriken prefer torque drop DC Sabre 09 diesel mounts Move firewall rearward accommodate longer heavier engine leaving nose length unchanged maintain CGand enjoy extra power Diesel engines have begun catch countrys RC fliers Eric Clutton having difficulty maintaining inventory RC versions Control Line fraternity wont far behind youre interested ease operation fuel economy good smooth torquy ILL FL Y WHA T FIX Special Fast Turnaround Now Available CALL 4-Frequency Conversion $4000 4-Includes Crystals Certification RCD AM & FM 7 Channel Receiver Special exclusive 6 meters -$7995 TX conversion avaitablel Full 1991 Specsl Rx alone 72/75 mhz-$6995 Order Model RCD100 Futabla G AM$6995 Model RODiSO Futabla J AM$6995 Model RCD200 Futabla J FM$6995 Model RCD300 Airtronic AM$6995 Model RCD150KB Kratt K-Line B$6995 Model RCD15OJR JR AM$6995 Model RCD1 50TH Tower 500$6995 Match tuned Gold 1991 Tx$7495 Tuned aligned updating Tx$7995 Tuned aligned Tx trequency change . $8995 Call Today Ultra Narrow Band AM Receiver Model KMRDC4-7A Years developing worth wait Features Dual conversion AGC Dual Crystal Ceramic Filters 50 53 72 75 Mhz Connectors Kraft styles Deans World & specials Specifications Size 275 70mm x 165 415mm x 825 205mm Weight 165 oz Working Voltage 38 60 VDC Temperature -10 12IYF 10 Khz spacing Bandwidth 1- 85 khz 60db down 30lP 3db Image 60db down Service ACe Cirrus EK Futaba Heathkit HobbyshaCk JR KGL K-Line KO Propo Kraft KSE Logitrol Novak Royal Tower Hobbies World Enaines Spectrum Analyzers Calibrated Test Instruments Large Inventory RIC Parts Crystals 6 Meter Specials List Prices Exceeds AMA Rx Guidelines 4 Channel $9495 5 Channel $9995 6 Channel $10495 7 Channel $10995 Pro-Line Units add $1000 Dealers Discounts available Rx Trade $5-$10 Send Self Addressed Envelope Brochures UPS US Mail Federal Express COD Shipping Charges Extra Mastercard Visa Accepted Kraft Midwest Inc RADI115 E Main Northville MI 48167 313 348-0085 FAX 313 348-4175 power diesels way go hA Stunt competition sport flying Arrow hard beat Power diesel stand ready amazed carefree small models can both operate fly I] AMA/NFFS/Murphy Continued page 14 still widely used readily available new CS Shuriken racing engines copped first three places event models used wing areas 300 sq range added power evident seemed jump away launch much faster rate accustomed Cox engines Ed Keck utilized CS engine set up Galbreath win Robert Dunham II Jean Pailet following Shurikens second third place Jean lost first Shuriken test flight last Nationals Would believe finder returned perfect shape AMA trailer during week Some guys have luck Jim Troutman lacked just three seconds max out win Junior age division Steven Landy stopped Warren Kurths string consecutive Nationals wins four Steven established new Category III record 020 Payload event December 1991 145