BLilMINIITOR II TO STAY jump ahead compe tition name game controlline Speed very competitive nature Class speed today requires some kind advantage order win Eliminator II step direction design taken partly Chuck Schuettes Sidewinder uses low-drag concept half wing tail alone simnli city upright theory th wing tail aster comes een cr whatever theage will create highdrag situatiSo have elimi nated manyof junctions possible andhave stable flying airplanewing fillets unknownmodel air planes may doing harm good using big wide fillets between wing fuselage Therefore dont recommend fillets larger neces sary safe strong glue joint Although Chuch Schuette admits wasnt first use asymmetric de sign models has man behind development design prob ably fastest its size world As upright Sidewinder engines Chuch Schuettes Sidewinder design engine side inboard will make faster airplane upright engine airplane other things equal ever Sidewinder easier trim will slow down much hav ing nose yaw slightly out flying Just look frontal area upright-engined airplane nose yawed out slightly side-mounted engine Sidewinder type will have less frontal area yawed out slightly Both Sidewinder upright will have equal frontal areas trimmed per fectly Sidewinder airplane design requires some uncommon construction techniques limited useable space So Eliminator II its much simpler fuse lage easy construction techniques some extra work trimming should just fast design concept proven John Newton set speed record 172 mph tied lines placed sec ond 1974 speed 16599 mph Monoline Contrary popular belief ma chine shop necessary build control-line speed airplane Eliminator II built completely hand tools Construction Eliminator II almost off-the-shelf airplane fiberglass/epoxy fuselage available commercially fuel tank speed pan choice engine other small pieces local hobby shop hardware store other department store items Speed Pan first step construction drilling tapping pan engine tie-downs can get drill press great use hand drill hand drill method best done two people couple right angle triangles check drilling straight use electric drill youre doing hand youll wind up hole too big will need make some kind clamp hold pan drilling can done four aluminum bars equal length bolted gether top bottom end pan can clamped vise 4-40 bolts available tie downs use 6-32 bolts shown plans standard hard ware store item Fuselage The engine pan pipe fitted fuselage necessary holes cut out sure ohn Newton Ejim Wade asymmetric design may fastest its size world Having set Class record 172 mph offers advantage needed win its highly competitive class some c ance erything espe. engine ne downs next Use wood motor mount materI run tie-downs throuch drill clearance hole wood bolts cut woj about /4 square hole enter blocks oiteo pan fuselage dropped over shell has cut outs bolt heads Tape pan place alignment cor rect shell Now can reach through engine head cut out did leave engine out didnt tack glue tie-downs five-minute epoxy dry unbolt untape pan permanently glue blocks place glass cloth over Use slow drying Hobbypoxy final assemblies Above Half wing half tail eliminate drag two surface/fuselage junctions theory goes Noteworthy craft clean fuselage lines semi-enclosed pipe 38 Model Aviation GLASS CLOTH OVER TUBES 1/16 ID BRASS TUBES HARDWOOD7 1/8BALSA71/16WIRE 3/32WIRECONTROLUNITANCHOR 1/16 PLYWOOD INSERT CONTROLUNITHARD WOOD WING GUIDE FIVE 008 MUSIC WIRES FULL LENGTH OF FUSELAGE SIX INCHES BETWEEN WRAPS MAPLE SPAR ar A-A 010 2024 T-3 ALUMINUM WING SKIN WING ROOT POSITIVE INCIDENCE WING TIP NEGATIVE INCIDENCE ROSSI SUPERTIGRE WHATEVER 3/32 WIRE SKID 2-56 FH MACH SCREW PLIO-BOND CONTACT CEMENT CLAMP WING THEN BAKE 2-56 NUT ORAT 3500F FOR ONE HOUR SPECIAL NUT TURNED FROM ALUMHARD WOOD BLOCKS x 2 MACHINE SCREWS 32 uarnwauea cGMkR Mde 015 TIN PIPE CLAMP HARD WOOD BLOCK TO SUPPORT PIPE O3OSTEEL CONTROL HORN BRAZE TO WIRE HINGE ____ TANK PATTERNS 010 TIN AHARTER AVAILABLE FROM1/16 WIRE3/32 ID BRASS PAN JOHN NEWTON PRODUCTSPUSHROD BES 2154 LOS PADRES ROWLAND HEIGHTS CA 91748 65492I12945674916 1/8 BRASS LEADOUTFUEL TANK 3/32 OD BRASS TUBE C I m -u z I m cn m m -u 0 m 0 N CD 0 0 CD five-minute kind tack glueing rear pan waxed re bolted shell run some epoxy down rear pan form key hold rear pan alignment couple keys front pan might helpful absolutely necessary Make cut outs wing spar tail Also split rear top fuselage down stabilizer cut out Dont forget cut out 1/16 ply wood inserts fuselage inserts strengthen fuselage keep hot air around pipe entering engine intake Coat glue before inserting fuselage Stabilizer The stabilizer shaped symmetrical airfoil Coat slow drying Hobbypoxy before elevator cut out note warning elevator must large shown airplane stable requires large elevator control properly elevator hinge system will require some brazing Sears good source brazing wire propane torch Dont expect first hinge assembly come out perfect especially have never brazed wire before brazed five hinges before proved acceptable brazing done assembly glued stabilizer Some wax brass tube bushings helpful glueing thing place because glue likes run inside tubes stick everything together pushrod bent installed finished tail before inserting fuse lage Now rear fuselage cut open whole tail assembly pushrod slipped place glued Fiberglass cloth used inside fuselage around stabilizer strengthen things Wing The wing spar X k maple tapered k tip taper done bottom side spar wing skin 0l0-012 20-24 T-3 aluminum anything close will work no metal brake available wing can bent over edge table anything else smooth has slight ra dius Use some wood metal blocks back up wing skin bending After bending cut wing roughly shape tin snips scissors metal shear Next rough up inside aluminum clean thinner before applying plio-bond cement apply both sides Some kind clamp needed hold trailing edge wing together baking use two aluminum strips bolts two inches wing should set up clamp bolts lightly tightened set up flat surface glass plate bend wing until correct incidence Cont inued page 95 40 Model Aviation Speed specialists will appreciate location fuel tank relative needle valve outside vent tube filler tube tank Eliminator built entirely hand tools wing partially removed show Monoline control unit wing spar end alignment blocks design has set records using both Monoline two-line control systems Suction fuel system Tail hinge detail showing hardwood outlines completely enclose balsa surtace course positioned line perpendicular start finish course Between line sight course ends vertical pole used reference point As model passed point would acti vate stopwatches times electronically relayed back master screen manned directing official numbers hit screen would vocal ly report cassette recorder avoid confusion error After flight finished times trans ferred recorder paper along information concerning whether run official order speed run accepted timing cannot 2/100 second difference end course watches two timers other words timers chance hitting within range times con verted speed Now will explain what official means speed run First improve communications used citizen-band radios converse point point points being course itself master screen timers also altitude judge As copter flew course altitude judge informed directing official whether altitude between 20 60 meters model enters course correctly stays boundaries course will stated official prepared repeat flight over over because will increase chance good flight get chance go record prepared obtain lot signatures comes time fill out paperwork just about everything requires paper Photographs three-view drawing model will also needed complete dossier will also asked ex plain course measured altutude checked method timing used will require some technical data concerning helicopter such weight overall size rotor blade area disc area power used tail-blade span mechanical ratios fuel capacity must admit lot work involved record over again would Believe will know three times about machine afterwards did before no excuse person break record Just dont break too badly because Im going give another shot someday want acknowledge Manned Spacecraft Center Radio Control Club organizing speed trial because couldnt have done writing advertisers mention read about MA Eliminator/Newton/Wade continued page 40 root tip achieved Use small steel scale marked hundredths inch 01 check alignment tip 1/16 negative root should 1/16 positive alignment correct tighten bolts re-check alignment bake required time After glue baked has cooled trailing edge filed smooth straight Control Units Although Mono-line unit shown plans will go detail its construction because parts readily available have built similar control unit before can find parts numbers plans two-line system can substituted very successfully Mono-line control unit fact reasons originally designing building Eliminator TIso could fly two lines still competitive Mono-line Final Assembly Notes Set up everything glass plate measure before final assembly ensure perfect alignment thrust line Some tooth picks might helpful aligning spar stab Drill some 1/16 holes outboard side February 1 978 95 shell spar will butt against spar use toothpicks align hold spar same stabilizer Use glass cloth around spar added strength several layers glass cloth paint tails of airplanes because weight build up possibility warping tail surface sealed epoxy glue rubbed wood unpainted wood surfaces Fuel Tank suction fuel system very simple should provide very constant engine runs tank itself can easily made 010 tin can ordered John Newton Speed Racing Products completely assembled ready bolt airplane Takeoff Dolly Any three-wheel dolly front wheel spread close wing span should prove satisfactory lift-out type two guide pins extending two three inches above wingone mid-wing other close fuse lage Some weight might needed close outboard wheel just depends dolly design Engines Fuel Props use essentially stock Rossi Rear Rotor 15s Except bar stock head engine stock use bar-stock head save price Rossi inserts Rossi insert faster can keep element whole run stock Rossi stock 6-7 Rev-Up prop 65% nitro can very consistently put 162-mph bracket nitro Rossi pipe short will go 170 mph range achievable consistently standard fuel mix used usually 65-75% nitro 20% oils rest alco hol have always used least 5%-10% castor oil fuel other oil content being synthetic oil Rev-Up 6-7 prop seems about right 65-75% nitro fuel weather conditions dont stop Experiment Flying The airplane very smooth flying should present no real problems takeoff run hold some down elevator until flying speed approached ease neutral airplane should lift off easily Dont let airplane climb too high Keep about 5 feet have questions problems feel free contact us John Newton 2154 Los Padres Rowland Heights CA 91748 Jim Wade 1853 Yettford Rd Vista CA 92083 Stripper/Lidberg continued page 56 As example handy strip per can recently built unlimited rubber model long geodetically braced fuselage Cross braces 1/16 X 3/16 local hobby shop out size bought sheet 1/16 X 2 Using stripper made up 3/16 width 1/16 depth able cut 10 pieces 3/l6 wide piece about /8 wide left over strip square edges uniform width con struction sanding finished fuse lage simplified Looking again yield piece sheet balsa shows considerable savings can made 2 sheet cost 5l yielded 10 strips would have cost ll $110 Thats bad just few minutes work addition able finish model making extra trip search strip wood An Easy Balsa Stripper can made just size 15 20 minutes can make half dozen commonly used sizes Mark width stripper ready reference prevent throwing strippers out scrap color markers colored paint strip pers can used two ways Either way works better sheet balsa has good straight edge sure check first knife/straightedge routine maybe just sanding block can used produce straigbt-edged sheet method prefer cutting strips shown photos sheet held down left hand stripper used right hand Keep slight amount pressure toward sheet keep strips consistent width may prefer holding stripper left hand blade pointing up pushing sheet through right hand Rubbing surfaces stripper slide sheet balsa lightly small dry bar soap will speed up process small sharpening stone can used touch up blade new stripper can quickly made blade chipped too dull dont need strip balsa right now remember Easy Balsa Stripper next time need some Friday Saturday night after hobby shop closes hope youll find handy M uffler/Weber con tinued page 41 through muffler has pressure tap main body graph can seen expansion chamber supplies pressure flow-through other comparison between 10-6 9-6 Semco shows pressure given rpm 10-6 full throt tIe pressure slightly higher 9-6 testing muffler pressure manometer fuel level should higher open side U indicates muffler pressure exceeding atmospheric pressure fuel level higher muffler side U muffler has suc tion instead positive pressure solve problem try different location pressure tap get different muffler just forget about using muffler pressure muffler behaves well will show positive pressure rpm increasing higher rpm found examples graph same simple manometer setup can also used check other pressures such crankcase pressure fuel pump pres sure FF Duration/Meuser continued page 54 awards must somehow represent signifi cant contribution sport perhaps evidenced outstanding contest record under exceptional circumstan ces awards have presented models intended competition awards have made things other specific models name few Pennyplane event Rossi 15 Normale engine Peanut-Scale concept Seelig timer Old-Timer movement Both domestic foreign candidates eligible Supply much information can Xeroxes articles lists contest wins National records whatever cant supply send name designer whatever do soon Time awastin New Digest Editor Free Flight NFFS Digest known affectionately simply Digest has new editor Several fact After being editor seven months just really getting swing Keith Varnau found necessary give up job Bob Stalick Tom Hutchin son put together interim issue Lee Vicki Hines put out another Now its hands John Oldenkamp lives 654 India St San Diego CA 92101 Send him good stuff photos sketches stories articles contest results reports whatever Im sure hed appreciate receiving club newsletters too 96 Model Aviation FINE QUALITY KITS AND ACCESSORIES Qj2Ij SCALE PLASTIC KITS FLYING MODEL ACCESSORIES SCALE PILOTS INE GUNS WHEELS & WHEEL PANTS ENGINE KITS & CYLINDERS SEND SOt FOR COMPLETE CATALOG Dept MA ,18 1 PAWNEE STREET 4iLIJAMSSAN MARCOS CALIPORNIA 9
Edition: Model Aviation - 1978/02
Page Numbers: 38, 39, 40, 95, 96
BLilMINIITOR II TO STAY jump ahead compe tition name game controlline Speed very competitive nature Class speed today requires some kind advantage order win Eliminator II step direction design taken partly Chuck Schuettes Sidewinder uses low-drag concept half wing tail alone simnli city upright theory th wing tail aster comes een cr whatever theage will create highdrag situatiSo have elimi nated manyof junctions possible andhave stable flying airplanewing fillets unknownmodel air planes may doing harm good using big wide fillets between wing fuselage Therefore dont recommend fillets larger neces sary safe strong glue joint Although Chuch Schuette admits wasnt first use asymmetric de sign models has man behind development design prob ably fastest its size world As upright Sidewinder engines Chuch Schuettes Sidewinder design engine side inboard will make faster airplane upright engine airplane other things equal ever Sidewinder easier trim will slow down much hav ing nose yaw slightly out flying Just look frontal area upright-engined airplane nose yawed out slightly side-mounted engine Sidewinder type will have less frontal area yawed out slightly Both Sidewinder upright will have equal frontal areas trimmed per fectly Sidewinder airplane design requires some uncommon construction techniques limited useable space So Eliminator II its much simpler fuse lage easy construction techniques some extra work trimming should just fast design concept proven John Newton set speed record 172 mph tied lines placed sec ond 1974 speed 16599 mph Monoline Contrary popular belief ma chine shop necessary build control-line speed airplane Eliminator II built completely hand tools Construction Eliminator II almost off-the-shelf airplane fiberglass/epoxy fuselage available commercially fuel tank speed pan choice engine other small pieces local hobby shop hardware store other department store items Speed Pan first step construction drilling tapping pan engine tie-downs can get drill press great use hand drill hand drill method best done two people couple right angle triangles check drilling straight use electric drill youre doing hand youll wind up hole too big will need make some kind clamp hold pan drilling can done four aluminum bars equal length bolted gether top bottom end pan can clamped vise 4-40 bolts available tie downs use 6-32 bolts shown plans standard hard ware store item Fuselage The engine pan pipe fitted fuselage necessary holes cut out sure ohn Newton Ejim Wade asymmetric design may fastest its size world Having set Class record 172 mph offers advantage needed win its highly competitive class some c ance erything espe. engine ne downs next Use wood motor mount materI run tie-downs throuch drill clearance hole wood bolts cut woj about /4 square hole enter blocks oiteo pan fuselage dropped over shell has cut outs bolt heads Tape pan place alignment cor rect shell Now can reach through engine head cut out did leave engine out didnt tack glue tie-downs five-minute epoxy dry unbolt untape pan permanently glue blocks place glass cloth over Use slow drying Hobbypoxy final assemblies Above Half wing half tail eliminate drag two surface/fuselage junctions theory goes Noteworthy craft clean fuselage lines semi-enclosed pipe 38 Model Aviation GLASS CLOTH OVER TUBES 1/16 ID BRASS TUBES HARDWOOD7 1/8BALSA71/16WIRE 3/32WIRECONTROLUNITANCHOR 1/16 PLYWOOD INSERT CONTROLUNITHARD WOOD WING GUIDE FIVE 008 MUSIC WIRES FULL LENGTH OF FUSELAGE SIX INCHES BETWEEN WRAPS MAPLE SPAR ar A-A 010 2024 T-3 ALUMINUM WING SKIN WING ROOT POSITIVE INCIDENCE WING TIP NEGATIVE INCIDENCE ROSSI SUPERTIGRE WHATEVER 3/32 WIRE SKID 2-56 FH MACH SCREW PLIO-BOND CONTACT CEMENT CLAMP WING THEN BAKE 2-56 NUT ORAT 3500F FOR ONE HOUR SPECIAL NUT TURNED FROM ALUMHARD WOOD BLOCKS x 2 MACHINE SCREWS 32 uarnwauea cGMkR Mde 015 TIN PIPE CLAMP HARD WOOD BLOCK TO SUPPORT PIPE O3OSTEEL CONTROL HORN BRAZE TO WIRE HINGE ____ TANK PATTERNS 010 TIN AHARTER AVAILABLE FROM1/16 WIRE3/32 ID BRASS PAN JOHN NEWTON PRODUCTSPUSHROD BES 2154 LOS PADRES ROWLAND HEIGHTS CA 91748 65492I12945674916 1/8 BRASS LEADOUTFUEL TANK 3/32 OD BRASS TUBE C I m -u z I m cn m m -u 0 m 0 N CD 0 0 CD five-minute kind tack glueing rear pan waxed re bolted shell run some epoxy down rear pan form key hold rear pan alignment couple keys front pan might helpful absolutely necessary Make cut outs wing spar tail Also split rear top fuselage down stabilizer cut out Dont forget cut out 1/16 ply wood inserts fuselage inserts strengthen fuselage keep hot air around pipe entering engine intake Coat glue before inserting fuselage Stabilizer The stabilizer shaped symmetrical airfoil Coat slow drying Hobbypoxy before elevator cut out note warning elevator must large shown airplane stable requires large elevator control properly elevator hinge system will require some brazing Sears good source brazing wire propane torch Dont expect first hinge assembly come out perfect especially have never brazed wire before brazed five hinges before proved acceptable brazing done assembly glued stabilizer Some wax brass tube bushings helpful glueing thing place because glue likes run inside tubes stick everything together pushrod bent installed finished tail before inserting fuse lage Now rear fuselage cut open whole tail assembly pushrod slipped place glued Fiberglass cloth used inside fuselage around stabilizer strengthen things Wing The wing spar X k maple tapered k tip taper done bottom side spar wing skin 0l0-012 20-24 T-3 aluminum anything close will work no metal brake available wing can bent over edge table anything else smooth has slight ra dius Use some wood metal blocks back up wing skin bending After bending cut wing roughly shape tin snips scissors metal shear Next rough up inside aluminum clean thinner before applying plio-bond cement apply both sides Some kind clamp needed hold trailing edge wing together baking use two aluminum strips bolts two inches wing should set up clamp bolts lightly tightened set up flat surface glass plate bend wing until correct incidence Cont inued page 95 40 Model Aviation Speed specialists will appreciate location fuel tank relative needle valve outside vent tube filler tube tank Eliminator built entirely hand tools wing partially removed show Monoline control unit wing spar end alignment blocks design has set records using both Monoline two-line control systems Suction fuel system Tail hinge detail showing hardwood outlines completely enclose balsa surtace course positioned line perpendicular start finish course Between line sight course ends vertical pole used reference point As model passed point would acti vate stopwatches times electronically relayed back master screen manned directing official numbers hit screen would vocal ly report cassette recorder avoid confusion error After flight finished times trans ferred recorder paper along information concerning whether run official order speed run accepted timing cannot 2/100 second difference end course watches two timers other words timers chance hitting within range times con verted speed Now will explain what official means speed run First improve communications used citizen-band radios converse point point points being course itself master screen timers also altitude judge As copter flew course altitude judge informed directing official whether altitude between 20 60 meters model enters course correctly stays boundaries course will stated official prepared repeat flight over over because will increase chance good flight get chance go record prepared obtain lot signatures comes time fill out paperwork just about everything requires paper Photographs three-view drawing model will also needed complete dossier will also asked ex plain course measured altutude checked method timing used will require some technical data concerning helicopter such weight overall size rotor blade area disc area power used tail-blade span mechanical ratios fuel capacity must admit lot work involved record over again would Believe will know three times about machine afterwards did before no excuse person break record Just dont break too badly because Im going give another shot someday want acknowledge Manned Spacecraft Center Radio Control Club organizing speed trial because couldnt have done writing advertisers mention read about MA Eliminator/Newton/Wade continued page 40 root tip achieved Use small steel scale marked hundredths inch 01 check alignment tip 1/16 negative root should 1/16 positive alignment correct tighten bolts re-check alignment bake required time After glue baked has cooled trailing edge filed smooth straight Control Units Although Mono-line unit shown plans will go detail its construction because parts readily available have built similar control unit before can find parts numbers plans two-line system can substituted very successfully Mono-line control unit fact reasons originally designing building Eliminator TIso could fly two lines still competitive Mono-line Final Assembly Notes Set up everything glass plate measure before final assembly ensure perfect alignment thrust line Some tooth picks might helpful aligning spar stab Drill some 1/16 holes outboard side February 1 978 95 shell spar will butt against spar use toothpicks align hold spar same stabilizer Use glass cloth around spar added strength several layers glass cloth paint tails of airplanes because weight build up possibility warping tail surface sealed epoxy glue rubbed wood unpainted wood surfaces Fuel Tank suction fuel system very simple should provide very constant engine runs tank itself can easily made 010 tin can ordered John Newton Speed Racing Products completely assembled ready bolt airplane Takeoff Dolly Any three-wheel dolly front wheel spread close wing span should prove satisfactory lift-out type two guide pins extending two three inches above wingone mid-wing other close fuse lage Some weight might needed close outboard wheel just depends dolly design Engines Fuel Props use essentially stock Rossi Rear Rotor 15s Except bar stock head engine stock use bar-stock head save price Rossi inserts Rossi insert faster can keep element whole run stock Rossi stock 6-7 Rev-Up prop 65% nitro can very consistently put 162-mph bracket nitro Rossi pipe short will go 170 mph range achievable consistently standard fuel mix used usually 65-75% nitro 20% oils rest alco hol have always used least 5%-10% castor oil fuel other oil content being synthetic oil Rev-Up 6-7 prop seems about right 65-75% nitro fuel weather conditions dont stop Experiment Flying The airplane very smooth flying should present no real problems takeoff run hold some down elevator until flying speed approached ease neutral airplane should lift off easily Dont let airplane climb too high Keep about 5 feet have questions problems feel free contact us John Newton 2154 Los Padres Rowland Heights CA 91748 Jim Wade 1853 Yettford Rd Vista CA 92083 Stripper/Lidberg continued page 56 As example handy strip per can recently built unlimited rubber model long geodetically braced fuselage Cross braces 1/16 X 3/16 local hobby shop out size bought sheet 1/16 X 2 Using stripper made up 3/16 width 1/16 depth able cut 10 pieces 3/l6 wide piece about /8 wide left over strip square edges uniform width con struction sanding finished fuse lage simplified Looking again yield piece sheet balsa shows considerable savings can made 2 sheet cost 5l yielded 10 strips would have cost ll $110 Thats bad just few minutes work addition able finish model making extra trip search strip wood An Easy Balsa Stripper can made just size 15 20 minutes can make half dozen commonly used sizes Mark width stripper ready reference prevent throwing strippers out scrap color markers colored paint strip pers can used two ways Either way works better sheet balsa has good straight edge sure check first knife/straightedge routine maybe just sanding block can used produce straigbt-edged sheet method prefer cutting strips shown photos sheet held down left hand stripper used right hand Keep slight amount pressure toward sheet keep strips consistent width may prefer holding stripper left hand blade pointing up pushing sheet through right hand Rubbing surfaces stripper slide sheet balsa lightly small dry bar soap will speed up process small sharpening stone can used touch up blade new stripper can quickly made blade chipped too dull dont need strip balsa right now remember Easy Balsa Stripper next time need some Friday Saturday night after hobby shop closes hope youll find handy M uffler/Weber con tinued page 41 through muffler has pressure tap main body graph can seen expansion chamber supplies pressure flow-through other comparison between 10-6 9-6 Semco shows pressure given rpm 10-6 full throt tIe pressure slightly higher 9-6 testing muffler pressure manometer fuel level should higher open side U indicates muffler pressure exceeding atmospheric pressure fuel level higher muffler side U muffler has suc tion instead positive pressure solve problem try different location pressure tap get different muffler just forget about using muffler pressure muffler behaves well will show positive pressure rpm increasing higher rpm found examples graph same simple manometer setup can also used check other pressures such crankcase pressure fuel pump pres sure FF Duration/Meuser continued page 54 awards must somehow represent signifi cant contribution sport perhaps evidenced outstanding contest record under exceptional circumstan ces awards have presented models intended competition awards have made things other specific models name few Pennyplane event Rossi 15 Normale engine Peanut-Scale concept Seelig timer Old-Timer movement Both domestic foreign candidates eligible Supply much information can Xeroxes articles lists contest wins National records whatever cant supply send name designer whatever do soon Time awastin New Digest Editor Free Flight NFFS Digest known affectionately simply Digest has new editor Several fact After being editor seven months just really getting swing Keith Varnau found necessary give up job Bob Stalick Tom Hutchin son put together interim issue Lee Vicki Hines put out another Now its hands John Oldenkamp lives 654 India St San Diego CA 92101 Send him good stuff photos sketches stories articles contest results reports whatever Im sure hed appreciate receiving club newsletters too 96 Model Aviation FINE QUALITY KITS AND ACCESSORIES Qj2Ij SCALE PLASTIC KITS FLYING MODEL ACCESSORIES SCALE PILOTS INE GUNS WHEELS & WHEEL PANTS ENGINE KITS & CYLINDERS SEND SOt FOR COMPLETE CATALOG Dept MA ,18 1 PAWNEE STREET 4iLIJAMSSAN MARCOS CALIPORNIA 9
Edition: Model Aviation - 1978/02
Page Numbers: 38, 39, 40, 95, 96
BLilMINIITOR II TO STAY jump ahead compe tition name game controlline Speed very competitive nature Class speed today requires some kind advantage order win Eliminator II step direction design taken partly Chuck Schuettes Sidewinder uses low-drag concept half wing tail alone simnli city upright theory th wing tail aster comes een cr whatever theage will create highdrag situatiSo have elimi nated manyof junctions possible andhave stable flying airplanewing fillets unknownmodel air planes may doing harm good using big wide fillets between wing fuselage Therefore dont recommend fillets larger neces sary safe strong glue joint Although Chuch Schuette admits wasnt first use asymmetric de sign models has man behind development design prob ably fastest its size world As upright Sidewinder engines Chuch Schuettes Sidewinder design engine side inboard will make faster airplane upright engine airplane other things equal ever Sidewinder easier trim will slow down much hav ing nose yaw slightly out flying Just look frontal area upright-engined airplane nose yawed out slightly side-mounted engine Sidewinder type will have less frontal area yawed out slightly Both Sidewinder upright will have equal frontal areas trimmed per fectly Sidewinder airplane design requires some uncommon construction techniques limited useable space So Eliminator II its much simpler fuse lage easy construction techniques some extra work trimming should just fast design concept proven John Newton set speed record 172 mph tied lines placed sec ond 1974 speed 16599 mph Monoline Contrary popular belief ma chine shop necessary build control-line speed airplane Eliminator II built completely hand tools Construction Eliminator II almost off-the-shelf airplane fiberglass/epoxy fuselage available commercially fuel tank speed pan choice engine other small pieces local hobby shop hardware store other department store items Speed Pan first step construction drilling tapping pan engine tie-downs can get drill press great use hand drill hand drill method best done two people couple right angle triangles check drilling straight use electric drill youre doing hand youll wind up hole too big will need make some kind clamp hold pan drilling can done four aluminum bars equal length bolted gether top bottom end pan can clamped vise 4-40 bolts available tie downs use 6-32 bolts shown plans standard hard ware store item Fuselage The engine pan pipe fitted fuselage necessary holes cut out sure ohn Newton Ejim Wade asymmetric design may fastest its size world Having set Class record 172 mph offers advantage needed win its highly competitive class some c ance erything espe. engine ne downs next Use wood motor mount materI run tie-downs throuch drill clearance hole wood bolts cut woj about /4 square hole enter blocks oiteo pan fuselage dropped over shell has cut outs bolt heads Tape pan place alignment cor rect shell Now can reach through engine head cut out did leave engine out didnt tack glue tie-downs five-minute epoxy dry unbolt untape pan permanently glue blocks place glass cloth over Use slow drying Hobbypoxy final assemblies Above Half wing half tail eliminate drag two surface/fuselage junctions theory goes Noteworthy craft clean fuselage lines semi-enclosed pipe 38 Model Aviation GLASS CLOTH OVER TUBES 1/16 ID BRASS TUBES HARDWOOD7 1/8BALSA71/16WIRE 3/32WIRECONTROLUNITANCHOR 1/16 PLYWOOD INSERT CONTROLUNITHARD WOOD WING GUIDE FIVE 008 MUSIC WIRES FULL LENGTH OF FUSELAGE SIX INCHES BETWEEN WRAPS MAPLE SPAR ar A-A 010 2024 T-3 ALUMINUM WING SKIN WING ROOT POSITIVE INCIDENCE WING TIP NEGATIVE INCIDENCE ROSSI SUPERTIGRE WHATEVER 3/32 WIRE SKID 2-56 FH MACH SCREW PLIO-BOND CONTACT CEMENT CLAMP WING THEN BAKE 2-56 NUT ORAT 3500F FOR ONE HOUR SPECIAL NUT TURNED FROM ALUMHARD WOOD BLOCKS x 2 MACHINE SCREWS 32 uarnwauea cGMkR Mde 015 TIN PIPE CLAMP HARD WOOD BLOCK TO SUPPORT PIPE O3OSTEEL CONTROL HORN BRAZE TO WIRE HINGE ____ TANK PATTERNS 010 TIN AHARTER AVAILABLE FROM1/16 WIRE3/32 ID BRASS PAN JOHN NEWTON PRODUCTSPUSHROD BES 2154 LOS PADRES ROWLAND HEIGHTS CA 91748 65492I12945674916 1/8 BRASS LEADOUTFUEL TANK 3/32 OD BRASS TUBE C I m -u z I m cn m m -u 0 m 0 N CD 0 0 CD five-minute kind tack glueing rear pan waxed re bolted shell run some epoxy down rear pan form key hold rear pan alignment couple keys front pan might helpful absolutely necessary Make cut outs wing spar tail Also split rear top fuselage down stabilizer cut out Dont forget cut out 1/16 ply wood inserts fuselage inserts strengthen fuselage keep hot air around pipe entering engine intake Coat glue before inserting fuselage Stabilizer The stabilizer shaped symmetrical airfoil Coat slow drying Hobbypoxy before elevator cut out note warning elevator must large shown airplane stable requires large elevator control properly elevator hinge system will require some brazing Sears good source brazing wire propane torch Dont expect first hinge assembly come out perfect especially have never brazed wire before brazed five hinges before proved acceptable brazing done assembly glued stabilizer Some wax brass tube bushings helpful glueing thing place because glue likes run inside tubes stick everything together pushrod bent installed finished tail before inserting fuse lage Now rear fuselage cut open whole tail assembly pushrod slipped place glued Fiberglass cloth used inside fuselage around stabilizer strengthen things Wing The wing spar X k maple tapered k tip taper done bottom side spar wing skin 0l0-012 20-24 T-3 aluminum anything close will work no metal brake available wing can bent over edge table anything else smooth has slight ra dius Use some wood metal blocks back up wing skin bending After bending cut wing roughly shape tin snips scissors metal shear Next rough up inside aluminum clean thinner before applying plio-bond cement apply both sides Some kind clamp needed hold trailing edge wing together baking use two aluminum strips bolts two inches wing should set up clamp bolts lightly tightened set up flat surface glass plate bend wing until correct incidence Cont inued page 95 40 Model Aviation Speed specialists will appreciate location fuel tank relative needle valve outside vent tube filler tube tank Eliminator built entirely hand tools wing partially removed show Monoline control unit wing spar end alignment blocks design has set records using both Monoline two-line control systems Suction fuel system Tail hinge detail showing hardwood outlines completely enclose balsa surtace course positioned line perpendicular start finish course Between line sight course ends vertical pole used reference point As model passed point would acti vate stopwatches times electronically relayed back master screen manned directing official numbers hit screen would vocal ly report cassette recorder avoid confusion error After flight finished times trans ferred recorder paper along information concerning whether run official order speed run accepted timing cannot 2/100 second difference end course watches two timers other words timers chance hitting within range times con verted speed Now will explain what official means speed run First improve communications used citizen-band radios converse point point points being course itself master screen timers also altitude judge As copter flew course altitude judge informed directing official whether altitude between 20 60 meters model enters course correctly stays boundaries course will stated official prepared repeat flight over over because will increase chance good flight get chance go record prepared obtain lot signatures comes time fill out paperwork just about everything requires paper Photographs three-view drawing model will also needed complete dossier will also asked ex plain course measured altutude checked method timing used will require some technical data concerning helicopter such weight overall size rotor blade area disc area power used tail-blade span mechanical ratios fuel capacity must admit lot work involved record over again would Believe will know three times about machine afterwards did before no excuse person break record Just dont break too badly because Im going give another shot someday want acknowledge Manned Spacecraft Center Radio Control Club organizing speed trial because couldnt have done writing advertisers mention read about MA Eliminator/Newton/Wade continued page 40 root tip achieved Use small steel scale marked hundredths inch 01 check alignment tip 1/16 negative root should 1/16 positive alignment correct tighten bolts re-check alignment bake required time After glue baked has cooled trailing edge filed smooth straight Control Units Although Mono-line unit shown plans will go detail its construction because parts readily available have built similar control unit before can find parts numbers plans two-line system can substituted very successfully Mono-line control unit fact reasons originally designing building Eliminator TIso could fly two lines still competitive Mono-line Final Assembly Notes Set up everything glass plate measure before final assembly ensure perfect alignment thrust line Some tooth picks might helpful aligning spar stab Drill some 1/16 holes outboard side February 1 978 95 shell spar will butt against spar use toothpicks align hold spar same stabilizer Use glass cloth around spar added strength several layers glass cloth paint tails of airplanes because weight build up possibility warping tail surface sealed epoxy glue rubbed wood unpainted wood surfaces Fuel Tank suction fuel system very simple should provide very constant engine runs tank itself can easily made 010 tin can ordered John Newton Speed Racing Products completely assembled ready bolt airplane Takeoff Dolly Any three-wheel dolly front wheel spread close wing span should prove satisfactory lift-out type two guide pins extending two three inches above wingone mid-wing other close fuse lage Some weight might needed close outboard wheel just depends dolly design Engines Fuel Props use essentially stock Rossi Rear Rotor 15s Except bar stock head engine stock use bar-stock head save price Rossi inserts Rossi insert faster can keep element whole run stock Rossi stock 6-7 Rev-Up prop 65% nitro can very consistently put 162-mph bracket nitro Rossi pipe short will go 170 mph range achievable consistently standard fuel mix used usually 65-75% nitro 20% oils rest alco hol have always used least 5%-10% castor oil fuel other oil content being synthetic oil Rev-Up 6-7 prop seems about right 65-75% nitro fuel weather conditions dont stop Experiment Flying The airplane very smooth flying should present no real problems takeoff run hold some down elevator until flying speed approached ease neutral airplane should lift off easily Dont let airplane climb too high Keep about 5 feet have questions problems feel free contact us John Newton 2154 Los Padres Rowland Heights CA 91748 Jim Wade 1853 Yettford Rd Vista CA 92083 Stripper/Lidberg continued page 56 As example handy strip per can recently built unlimited rubber model long geodetically braced fuselage Cross braces 1/16 X 3/16 local hobby shop out size bought sheet 1/16 X 2 Using stripper made up 3/16 width 1/16 depth able cut 10 pieces 3/l6 wide piece about /8 wide left over strip square edges uniform width con struction sanding finished fuse lage simplified Looking again yield piece sheet balsa shows considerable savings can made 2 sheet cost 5l yielded 10 strips would have cost ll $110 Thats bad just few minutes work addition able finish model making extra trip search strip wood An Easy Balsa Stripper can made just size 15 20 minutes can make half dozen commonly used sizes Mark width stripper ready reference prevent throwing strippers out scrap color markers colored paint strip pers can used two ways Either way works better sheet balsa has good straight edge sure check first knife/straightedge routine maybe just sanding block can used produce straigbt-edged sheet method prefer cutting strips shown photos sheet held down left hand stripper used right hand Keep slight amount pressure toward sheet keep strips consistent width may prefer holding stripper left hand blade pointing up pushing sheet through right hand Rubbing surfaces stripper slide sheet balsa lightly small dry bar soap will speed up process small sharpening stone can used touch up blade new stripper can quickly made blade chipped too dull dont need strip balsa right now remember Easy Balsa Stripper next time need some Friday Saturday night after hobby shop closes hope youll find handy M uffler/Weber con tinued page 41 through muffler has pressure tap main body graph can seen expansion chamber supplies pressure flow-through other comparison between 10-6 9-6 Semco shows pressure given rpm 10-6 full throt tIe pressure slightly higher 9-6 testing muffler pressure manometer fuel level should higher open side U indicates muffler pressure exceeding atmospheric pressure fuel level higher muffler side U muffler has suc tion instead positive pressure solve problem try different location pressure tap get different muffler just forget about using muffler pressure muffler behaves well will show positive pressure rpm increasing higher rpm found examples graph same simple manometer setup can also used check other pressures such crankcase pressure fuel pump pres sure FF Duration/Meuser continued page 54 awards must somehow represent signifi cant contribution sport perhaps evidenced outstanding contest record under exceptional circumstan ces awards have presented models intended competition awards have made things other specific models name few Pennyplane event Rossi 15 Normale engine Peanut-Scale concept Seelig timer Old-Timer movement Both domestic foreign candidates eligible Supply much information can Xeroxes articles lists contest wins National records whatever cant supply send name designer whatever do soon Time awastin New Digest Editor Free Flight NFFS Digest known affectionately simply Digest has new editor Several fact After being editor seven months just really getting swing Keith Varnau found necessary give up job Bob Stalick Tom Hutchin son put together interim issue Lee Vicki Hines put out another Now its hands John Oldenkamp lives 654 India St San Diego CA 92101 Send him good stuff photos sketches stories articles contest results reports whatever Im sure hed appreciate receiving club newsletters too 96 Model Aviation FINE QUALITY KITS AND ACCESSORIES Qj2Ij SCALE PLASTIC KITS FLYING MODEL ACCESSORIES SCALE PILOTS INE GUNS WHEELS & WHEEL PANTS ENGINE KITS & CYLINDERS SEND SOt FOR COMPLETE CATALOG Dept MA ,18 1 PAWNEE STREET 4iLIJAMSSAN MARCOS CALIPORNIA 9
Edition: Model Aviation - 1978/02
Page Numbers: 38, 39, 40, 95, 96
BLilMINIITOR II TO STAY jump ahead compe tition name game controlline Speed very competitive nature Class speed today requires some kind advantage order win Eliminator II step direction design taken partly Chuck Schuettes Sidewinder uses low-drag concept half wing tail alone simnli city upright theory th wing tail aster comes een cr whatever theage will create highdrag situatiSo have elimi nated manyof junctions possible andhave stable flying airplanewing fillets unknownmodel air planes may doing harm good using big wide fillets between wing fuselage Therefore dont recommend fillets larger neces sary safe strong glue joint Although Chuch Schuette admits wasnt first use asymmetric de sign models has man behind development design prob ably fastest its size world As upright Sidewinder engines Chuch Schuettes Sidewinder design engine side inboard will make faster airplane upright engine airplane other things equal ever Sidewinder easier trim will slow down much hav ing nose yaw slightly out flying Just look frontal area upright-engined airplane nose yawed out slightly side-mounted engine Sidewinder type will have less frontal area yawed out slightly Both Sidewinder upright will have equal frontal areas trimmed per fectly Sidewinder airplane design requires some uncommon construction techniques limited useable space So Eliminator II its much simpler fuse lage easy construction techniques some extra work trimming should just fast design concept proven John Newton set speed record 172 mph tied lines placed sec ond 1974 speed 16599 mph Monoline Contrary popular belief ma chine shop necessary build control-line speed airplane Eliminator II built completely hand tools Construction Eliminator II almost off-the-shelf airplane fiberglass/epoxy fuselage available commercially fuel tank speed pan choice engine other small pieces local hobby shop hardware store other department store items Speed Pan first step construction drilling tapping pan engine tie-downs can get drill press great use hand drill hand drill method best done two people couple right angle triangles check drilling straight use electric drill youre doing hand youll wind up hole too big will need make some kind clamp hold pan drilling can done four aluminum bars equal length bolted gether top bottom end pan can clamped vise 4-40 bolts available tie downs use 6-32 bolts shown plans standard hard ware store item Fuselage The engine pan pipe fitted fuselage necessary holes cut out sure ohn Newton Ejim Wade asymmetric design may fastest its size world Having set Class record 172 mph offers advantage needed win its highly competitive class some c ance erything espe. engine ne downs next Use wood motor mount materI run tie-downs throuch drill clearance hole wood bolts cut woj about /4 square hole enter blocks oiteo pan fuselage dropped over shell has cut outs bolt heads Tape pan place alignment cor rect shell Now can reach through engine head cut out did leave engine out didnt tack glue tie-downs five-minute epoxy dry unbolt untape pan permanently glue blocks place glass cloth over Use slow drying Hobbypoxy final assemblies Above Half wing half tail eliminate drag two surface/fuselage junctions theory goes Noteworthy craft clean fuselage lines semi-enclosed pipe 38 Model Aviation GLASS CLOTH OVER TUBES 1/16 ID BRASS TUBES HARDWOOD7 1/8BALSA71/16WIRE 3/32WIRECONTROLUNITANCHOR 1/16 PLYWOOD INSERT CONTROLUNITHARD WOOD WING GUIDE FIVE 008 MUSIC WIRES FULL LENGTH OF FUSELAGE SIX INCHES BETWEEN WRAPS MAPLE SPAR ar A-A 010 2024 T-3 ALUMINUM WING SKIN WING ROOT POSITIVE INCIDENCE WING TIP NEGATIVE INCIDENCE ROSSI SUPERTIGRE WHATEVER 3/32 WIRE SKID 2-56 FH MACH SCREW PLIO-BOND CONTACT CEMENT CLAMP WING THEN BAKE 2-56 NUT ORAT 3500F FOR ONE HOUR SPECIAL NUT TURNED FROM ALUMHARD WOOD BLOCKS x 2 MACHINE SCREWS 32 uarnwauea cGMkR Mde 015 TIN PIPE CLAMP HARD WOOD BLOCK TO SUPPORT PIPE O3OSTEEL CONTROL HORN BRAZE TO WIRE HINGE ____ TANK PATTERNS 010 TIN AHARTER AVAILABLE FROM1/16 WIRE3/32 ID BRASS PAN JOHN NEWTON PRODUCTSPUSHROD BES 2154 LOS PADRES ROWLAND HEIGHTS CA 91748 65492I12945674916 1/8 BRASS LEADOUTFUEL TANK 3/32 OD BRASS TUBE C I m -u z I m cn m m -u 0 m 0 N CD 0 0 CD five-minute kind tack glueing rear pan waxed re bolted shell run some epoxy down rear pan form key hold rear pan alignment couple keys front pan might helpful absolutely necessary Make cut outs wing spar tail Also split rear top fuselage down stabilizer cut out Dont forget cut out 1/16 ply wood inserts fuselage inserts strengthen fuselage keep hot air around pipe entering engine intake Coat glue before inserting fuselage Stabilizer The stabilizer shaped symmetrical airfoil Coat slow drying Hobbypoxy before elevator cut out note warning elevator must large shown airplane stable requires large elevator control properly elevator hinge system will require some brazing Sears good source brazing wire propane torch Dont expect first hinge assembly come out perfect especially have never brazed wire before brazed five hinges before proved acceptable brazing done assembly glued stabilizer Some wax brass tube bushings helpful glueing thing place because glue likes run inside tubes stick everything together pushrod bent installed finished tail before inserting fuse lage Now rear fuselage cut open whole tail assembly pushrod slipped place glued Fiberglass cloth used inside fuselage around stabilizer strengthen things Wing The wing spar X k maple tapered k tip taper done bottom side spar wing skin 0l0-012 20-24 T-3 aluminum anything close will work no metal brake available wing can bent over edge table anything else smooth has slight ra dius Use some wood metal blocks back up wing skin bending After bending cut wing roughly shape tin snips scissors metal shear Next rough up inside aluminum clean thinner before applying plio-bond cement apply both sides Some kind clamp needed hold trailing edge wing together baking use two aluminum strips bolts two inches wing should set up clamp bolts lightly tightened set up flat surface glass plate bend wing until correct incidence Cont inued page 95 40 Model Aviation Speed specialists will appreciate location fuel tank relative needle valve outside vent tube filler tube tank Eliminator built entirely hand tools wing partially removed show Monoline control unit wing spar end alignment blocks design has set records using both Monoline two-line control systems Suction fuel system Tail hinge detail showing hardwood outlines completely enclose balsa surtace course positioned line perpendicular start finish course Between line sight course ends vertical pole used reference point As model passed point would acti vate stopwatches times electronically relayed back master screen manned directing official numbers hit screen would vocal ly report cassette recorder avoid confusion error After flight finished times trans ferred recorder paper along information concerning whether run official order speed run accepted timing cannot 2/100 second difference end course watches two timers other words timers chance hitting within range times con verted speed Now will explain what official means speed run First improve communications used citizen-band radios converse point point points being course itself master screen timers also altitude judge As copter flew course altitude judge informed directing official whether altitude between 20 60 meters model enters course correctly stays boundaries course will stated official prepared repeat flight over over because will increase chance good flight get chance go record prepared obtain lot signatures comes time fill out paperwork just about everything requires paper Photographs three-view drawing model will also needed complete dossier will also asked ex plain course measured altutude checked method timing used will require some technical data concerning helicopter such weight overall size rotor blade area disc area power used tail-blade span mechanical ratios fuel capacity must admit lot work involved record over again would Believe will know three times about machine afterwards did before no excuse person break record Just dont break too badly because Im going give another shot someday want acknowledge Manned Spacecraft Center Radio Control Club organizing speed trial because couldnt have done writing advertisers mention read about MA Eliminator/Newton/Wade continued page 40 root tip achieved Use small steel scale marked hundredths inch 01 check alignment tip 1/16 negative root should 1/16 positive alignment correct tighten bolts re-check alignment bake required time After glue baked has cooled trailing edge filed smooth straight Control Units Although Mono-line unit shown plans will go detail its construction because parts readily available have built similar control unit before can find parts numbers plans two-line system can substituted very successfully Mono-line control unit fact reasons originally designing building Eliminator TIso could fly two lines still competitive Mono-line Final Assembly Notes Set up everything glass plate measure before final assembly ensure perfect alignment thrust line Some tooth picks might helpful aligning spar stab Drill some 1/16 holes outboard side February 1 978 95 shell spar will butt against spar use toothpicks align hold spar same stabilizer Use glass cloth around spar added strength several layers glass cloth paint tails of airplanes because weight build up possibility warping tail surface sealed epoxy glue rubbed wood unpainted wood surfaces Fuel Tank suction fuel system very simple should provide very constant engine runs tank itself can easily made 010 tin can ordered John Newton Speed Racing Products completely assembled ready bolt airplane Takeoff Dolly Any three-wheel dolly front wheel spread close wing span should prove satisfactory lift-out type two guide pins extending two three inches above wingone mid-wing other close fuse lage Some weight might needed close outboard wheel just depends dolly design Engines Fuel Props use essentially stock Rossi Rear Rotor 15s Except bar stock head engine stock use bar-stock head save price Rossi inserts Rossi insert faster can keep element whole run stock Rossi stock 6-7 Rev-Up prop 65% nitro can very consistently put 162-mph bracket nitro Rossi pipe short will go 170 mph range achievable consistently standard fuel mix used usually 65-75% nitro 20% oils rest alco hol have always used least 5%-10% castor oil fuel other oil content being synthetic oil Rev-Up 6-7 prop seems about right 65-75% nitro fuel weather conditions dont stop Experiment Flying The airplane very smooth flying should present no real problems takeoff run hold some down elevator until flying speed approached ease neutral airplane should lift off easily Dont let airplane climb too high Keep about 5 feet have questions problems feel free contact us John Newton 2154 Los Padres Rowland Heights CA 91748 Jim Wade 1853 Yettford Rd Vista CA 92083 Stripper/Lidberg continued page 56 As example handy strip per can recently built unlimited rubber model long geodetically braced fuselage Cross braces 1/16 X 3/16 local hobby shop out size bought sheet 1/16 X 2 Using stripper made up 3/16 width 1/16 depth able cut 10 pieces 3/l6 wide piece about /8 wide left over strip square edges uniform width con struction sanding finished fuse lage simplified Looking again yield piece sheet balsa shows considerable savings can made 2 sheet cost 5l yielded 10 strips would have cost ll $110 Thats bad just few minutes work addition able finish model making extra trip search strip wood An Easy Balsa Stripper can made just size 15 20 minutes can make half dozen commonly used sizes Mark width stripper ready reference prevent throwing strippers out scrap color markers colored paint strip pers can used two ways Either way works better sheet balsa has good straight edge sure check first knife/straightedge routine maybe just sanding block can used produce straigbt-edged sheet method prefer cutting strips shown photos sheet held down left hand stripper used right hand Keep slight amount pressure toward sheet keep strips consistent width may prefer holding stripper left hand blade pointing up pushing sheet through right hand Rubbing surfaces stripper slide sheet balsa lightly small dry bar soap will speed up process small sharpening stone can used touch up blade new stripper can quickly made blade chipped too dull dont need strip balsa right now remember Easy Balsa Stripper next time need some Friday Saturday night after hobby shop closes hope youll find handy M uffler/Weber con tinued page 41 through muffler has pressure tap main body graph can seen expansion chamber supplies pressure flow-through other comparison between 10-6 9-6 Semco shows pressure given rpm 10-6 full throt tIe pressure slightly higher 9-6 testing muffler pressure manometer fuel level should higher open side U indicates muffler pressure exceeding atmospheric pressure fuel level higher muffler side U muffler has suc tion instead positive pressure solve problem try different location pressure tap get different muffler just forget about using muffler pressure muffler behaves well will show positive pressure rpm increasing higher rpm found examples graph same simple manometer setup can also used check other pressures such crankcase pressure fuel pump pres sure FF Duration/Meuser continued page 54 awards must somehow represent signifi cant contribution sport perhaps evidenced outstanding contest record under exceptional circumstan ces awards have presented models intended competition awards have made things other specific models name few Pennyplane event Rossi 15 Normale engine Peanut-Scale concept Seelig timer Old-Timer movement Both domestic foreign candidates eligible Supply much information can Xeroxes articles lists contest wins National records whatever cant supply send name designer whatever do soon Time awastin New Digest Editor Free Flight NFFS Digest known affectionately simply Digest has new editor Several fact After being editor seven months just really getting swing Keith Varnau found necessary give up job Bob Stalick Tom Hutchin son put together interim issue Lee Vicki Hines put out another Now its hands John Oldenkamp lives 654 India St San Diego CA 92101 Send him good stuff photos sketches stories articles contest results reports whatever Im sure hed appreciate receiving club newsletters too 96 Model Aviation FINE QUALITY KITS AND ACCESSORIES Qj2Ij SCALE PLASTIC KITS FLYING MODEL ACCESSORIES SCALE PILOTS INE GUNS WHEELS & WHEEL PANTS ENGINE KITS & CYLINDERS SEND SOt FOR COMPLETE CATALOG Dept MA ,18 1 PAWNEE STREET 4iLIJAMSSAN MARCOS CALIPORNIA 9
Edition: Model Aviation - 1978/02
Page Numbers: 38, 39, 40, 95, 96
BLilMINIITOR II TO STAY jump ahead compe tition name game controlline Speed very competitive nature Class speed today requires some kind advantage order win Eliminator II step direction design taken partly Chuck Schuettes Sidewinder uses low-drag concept half wing tail alone simnli city upright theory th wing tail aster comes een cr whatever theage will create highdrag situatiSo have elimi nated manyof junctions possible andhave stable flying airplanewing fillets unknownmodel air planes may doing harm good using big wide fillets between wing fuselage Therefore dont recommend fillets larger neces sary safe strong glue joint Although Chuch Schuette admits wasnt first use asymmetric de sign models has man behind development design prob ably fastest its size world As upright Sidewinder engines Chuch Schuettes Sidewinder design engine side inboard will make faster airplane upright engine airplane other things equal ever Sidewinder easier trim will slow down much hav ing nose yaw slightly out flying Just look frontal area upright-engined airplane nose yawed out slightly side-mounted engine Sidewinder type will have less frontal area yawed out slightly Both Sidewinder upright will have equal frontal areas trimmed per fectly Sidewinder airplane design requires some uncommon construction techniques limited useable space So Eliminator II its much simpler fuse lage easy construction techniques some extra work trimming should just fast design concept proven John Newton set speed record 172 mph tied lines placed sec ond 1974 speed 16599 mph Monoline Contrary popular belief ma chine shop necessary build control-line speed airplane Eliminator II built completely hand tools Construction Eliminator II almost off-the-shelf airplane fiberglass/epoxy fuselage available commercially fuel tank speed pan choice engine other small pieces local hobby shop hardware store other department store items Speed Pan first step construction drilling tapping pan engine tie-downs can get drill press great use hand drill hand drill method best done two people couple right angle triangles check drilling straight use electric drill youre doing hand youll wind up hole too big will need make some kind clamp hold pan drilling can done four aluminum bars equal length bolted gether top bottom end pan can clamped vise 4-40 bolts available tie downs use 6-32 bolts shown plans standard hard ware store item Fuselage The engine pan pipe fitted fuselage necessary holes cut out sure ohn Newton Ejim Wade asymmetric design may fastest its size world Having set Class record 172 mph offers advantage needed win its highly competitive class some c ance erything espe. engine ne downs next Use wood motor mount materI run tie-downs throuch drill clearance hole wood bolts cut woj about /4 square hole enter blocks oiteo pan fuselage dropped over shell has cut outs bolt heads Tape pan place alignment cor rect shell Now can reach through engine head cut out did leave engine out didnt tack glue tie-downs five-minute epoxy dry unbolt untape pan permanently glue blocks place glass cloth over Use slow drying Hobbypoxy final assemblies Above Half wing half tail eliminate drag two surface/fuselage junctions theory goes Noteworthy craft clean fuselage lines semi-enclosed pipe 38 Model Aviation GLASS CLOTH OVER TUBES 1/16 ID BRASS TUBES HARDWOOD7 1/8BALSA71/16WIRE 3/32WIRECONTROLUNITANCHOR 1/16 PLYWOOD INSERT CONTROLUNITHARD WOOD WING GUIDE FIVE 008 MUSIC WIRES FULL LENGTH OF FUSELAGE SIX INCHES BETWEEN WRAPS MAPLE SPAR ar A-A 010 2024 T-3 ALUMINUM WING SKIN WING ROOT POSITIVE INCIDENCE WING TIP NEGATIVE INCIDENCE ROSSI SUPERTIGRE WHATEVER 3/32 WIRE SKID 2-56 FH MACH SCREW PLIO-BOND CONTACT CEMENT CLAMP WING THEN BAKE 2-56 NUT ORAT 3500F FOR ONE HOUR SPECIAL NUT TURNED FROM ALUMHARD WOOD BLOCKS x 2 MACHINE SCREWS 32 uarnwauea cGMkR Mde 015 TIN PIPE CLAMP HARD WOOD BLOCK TO SUPPORT PIPE O3OSTEEL CONTROL HORN BRAZE TO WIRE HINGE ____ TANK PATTERNS 010 TIN AHARTER AVAILABLE FROM1/16 WIRE3/32 ID BRASS PAN JOHN NEWTON PRODUCTSPUSHROD BES 2154 LOS PADRES ROWLAND HEIGHTS CA 91748 65492I12945674916 1/8 BRASS LEADOUTFUEL TANK 3/32 OD BRASS TUBE C I m -u z I m cn m m -u 0 m 0 N CD 0 0 CD five-minute kind tack glueing rear pan waxed re bolted shell run some epoxy down rear pan form key hold rear pan alignment couple keys front pan might helpful absolutely necessary Make cut outs wing spar tail Also split rear top fuselage down stabilizer cut out Dont forget cut out 1/16 ply wood inserts fuselage inserts strengthen fuselage keep hot air around pipe entering engine intake Coat glue before inserting fuselage Stabilizer The stabilizer shaped symmetrical airfoil Coat slow drying Hobbypoxy before elevator cut out note warning elevator must large shown airplane stable requires large elevator control properly elevator hinge system will require some brazing Sears good source brazing wire propane torch Dont expect first hinge assembly come out perfect especially have never brazed wire before brazed five hinges before proved acceptable brazing done assembly glued stabilizer Some wax brass tube bushings helpful glueing thing place because glue likes run inside tubes stick everything together pushrod bent installed finished tail before inserting fuse lage Now rear fuselage cut open whole tail assembly pushrod slipped place glued Fiberglass cloth used inside fuselage around stabilizer strengthen things Wing The wing spar X k maple tapered k tip taper done bottom side spar wing skin 0l0-012 20-24 T-3 aluminum anything close will work no metal brake available wing can bent over edge table anything else smooth has slight ra dius Use some wood metal blocks back up wing skin bending After bending cut wing roughly shape tin snips scissors metal shear Next rough up inside aluminum clean thinner before applying plio-bond cement apply both sides Some kind clamp needed hold trailing edge wing together baking use two aluminum strips bolts two inches wing should set up clamp bolts lightly tightened set up flat surface glass plate bend wing until correct incidence Cont inued page 95 40 Model Aviation Speed specialists will appreciate location fuel tank relative needle valve outside vent tube filler tube tank Eliminator built entirely hand tools wing partially removed show Monoline control unit wing spar end alignment blocks design has set records using both Monoline two-line control systems Suction fuel system Tail hinge detail showing hardwood outlines completely enclose balsa surtace course positioned line perpendicular start finish course Between line sight course ends vertical pole used reference point As model passed point would acti vate stopwatches times electronically relayed back master screen manned directing official numbers hit screen would vocal ly report cassette recorder avoid confusion error After flight finished times trans ferred recorder paper along information concerning whether run official order speed run accepted timing cannot 2/100 second difference end course watches two timers other words timers chance hitting within range times con verted speed Now will explain what official means speed run First improve communications used citizen-band radios converse point point points being course itself master screen timers also altitude judge As copter flew course altitude judge informed directing official whether altitude between 20 60 meters model enters course correctly stays boundaries course will stated official prepared repeat flight over over because will increase chance good flight get chance go record prepared obtain lot signatures comes time fill out paperwork just about everything requires paper Photographs three-view drawing model will also needed complete dossier will also asked ex plain course measured altutude checked method timing used will require some technical data concerning helicopter such weight overall size rotor blade area disc area power used tail-blade span mechanical ratios fuel capacity must admit lot work involved record over again would Believe will know three times about machine afterwards did before no excuse person break record Just dont break too badly because Im going give another shot someday want acknowledge Manned Spacecraft Center Radio Control Club organizing speed trial because couldnt have done writing advertisers mention read about MA Eliminator/Newton/Wade continued page 40 root tip achieved Use small steel scale marked hundredths inch 01 check alignment tip 1/16 negative root should 1/16 positive alignment correct tighten bolts re-check alignment bake required time After glue baked has cooled trailing edge filed smooth straight Control Units Although Mono-line unit shown plans will go detail its construction because parts readily available have built similar control unit before can find parts numbers plans two-line system can substituted very successfully Mono-line control unit fact reasons originally designing building Eliminator TIso could fly two lines still competitive Mono-line Final Assembly Notes Set up everything glass plate measure before final assembly ensure perfect alignment thrust line Some tooth picks might helpful aligning spar stab Drill some 1/16 holes outboard side February 1 978 95 shell spar will butt against spar use toothpicks align hold spar same stabilizer Use glass cloth around spar added strength several layers glass cloth paint tails of airplanes because weight build up possibility warping tail surface sealed epoxy glue rubbed wood unpainted wood surfaces Fuel Tank suction fuel system very simple should provide very constant engine runs tank itself can easily made 010 tin can ordered John Newton Speed Racing Products completely assembled ready bolt airplane Takeoff Dolly Any three-wheel dolly front wheel spread close wing span should prove satisfactory lift-out type two guide pins extending two three inches above wingone mid-wing other close fuse lage Some weight might needed close outboard wheel just depends dolly design Engines Fuel Props use essentially stock Rossi Rear Rotor 15s Except bar stock head engine stock use bar-stock head save price Rossi inserts Rossi insert faster can keep element whole run stock Rossi stock 6-7 Rev-Up prop 65% nitro can very consistently put 162-mph bracket nitro Rossi pipe short will go 170 mph range achievable consistently standard fuel mix used usually 65-75% nitro 20% oils rest alco hol have always used least 5%-10% castor oil fuel other oil content being synthetic oil Rev-Up 6-7 prop seems about right 65-75% nitro fuel weather conditions dont stop Experiment Flying The airplane very smooth flying should present no real problems takeoff run hold some down elevator until flying speed approached ease neutral airplane should lift off easily Dont let airplane climb too high Keep about 5 feet have questions problems feel free contact us John Newton 2154 Los Padres Rowland Heights CA 91748 Jim Wade 1853 Yettford Rd Vista CA 92083 Stripper/Lidberg continued page 56 As example handy strip per can recently built unlimited rubber model long geodetically braced fuselage Cross braces 1/16 X 3/16 local hobby shop out size bought sheet 1/16 X 2 Using stripper made up 3/16 width 1/16 depth able cut 10 pieces 3/l6 wide piece about /8 wide left over strip square edges uniform width con struction sanding finished fuse lage simplified Looking again yield piece sheet balsa shows considerable savings can made 2 sheet cost 5l yielded 10 strips would have cost ll $110 Thats bad just few minutes work addition able finish model making extra trip search strip wood An Easy Balsa Stripper can made just size 15 20 minutes can make half dozen commonly used sizes Mark width stripper ready reference prevent throwing strippers out scrap color markers colored paint strip pers can used two ways Either way works better sheet balsa has good straight edge sure check first knife/straightedge routine maybe just sanding block can used produce straigbt-edged sheet method prefer cutting strips shown photos sheet held down left hand stripper used right hand Keep slight amount pressure toward sheet keep strips consistent width may prefer holding stripper left hand blade pointing up pushing sheet through right hand Rubbing surfaces stripper slide sheet balsa lightly small dry bar soap will speed up process small sharpening stone can used touch up blade new stripper can quickly made blade chipped too dull dont need strip balsa right now remember Easy Balsa Stripper next time need some Friday Saturday night after hobby shop closes hope youll find handy M uffler/Weber con tinued page 41 through muffler has pressure tap main body graph can seen expansion chamber supplies pressure flow-through other comparison between 10-6 9-6 Semco shows pressure given rpm 10-6 full throt tIe pressure slightly higher 9-6 testing muffler pressure manometer fuel level should higher open side U indicates muffler pressure exceeding atmospheric pressure fuel level higher muffler side U muffler has suc tion instead positive pressure solve problem try different location pressure tap get different muffler just forget about using muffler pressure muffler behaves well will show positive pressure rpm increasing higher rpm found examples graph same simple manometer setup can also used check other pressures such crankcase pressure fuel pump pres sure FF Duration/Meuser continued page 54 awards must somehow represent signifi cant contribution sport perhaps evidenced outstanding contest record under exceptional circumstan ces awards have presented models intended competition awards have made things other specific models name few Pennyplane event Rossi 15 Normale engine Peanut-Scale concept Seelig timer Old-Timer movement Both domestic foreign candidates eligible Supply much information can Xeroxes articles lists contest wins National records whatever cant supply send name designer whatever do soon Time awastin New Digest Editor Free Flight NFFS Digest known affectionately simply Digest has new editor Several fact After being editor seven months just really getting swing Keith Varnau found necessary give up job Bob Stalick Tom Hutchin son put together interim issue Lee Vicki Hines put out another Now its hands John Oldenkamp lives 654 India St San Diego CA 92101 Send him good stuff photos sketches stories articles contest results reports whatever Im sure hed appreciate receiving club newsletters too 96 Model Aviation FINE QUALITY KITS AND ACCESSORIES Qj2Ij SCALE PLASTIC KITS FLYING MODEL ACCESSORIES SCALE PILOTS INE GUNS WHEELS & WHEEL PANTS ENGINE KITS & CYLINDERS SEND SOt FOR COMPLETE CATALOG Dept MA ,18 1 PAWNEE STREET 4iLIJAMSSAN MARCOS CALIPORNIA 9