TOOLS TO BUILD model airplanes range simple exotic As rule though modelers start knife some pins glue sandpaper As time goes add tool chest items enable build faster better Costlows Law says will never have right tools need After building models 40 years still am looking elusive right tool items described bought built stolen idea someone else Hopefully some may some help youre building traditional style invariably need some odd-sized sticks have access power tools world cut balsa sticks Dremel jigsaw idea new has written about before though several variations may useful use piece A-in plywood rip fence Two slots cut ply clear 6-32 screws screw size critical Two holes drilled tapped saw table screws match slots Set blade cutting side table way length can cut Measure distance blade ply fence thickness sticks need Run some tests scrap wood cases fence will have angled since blade almost never straight Check widths satisfied rip number sticks need Lay strips have cut flat sur face sawed edges up Using sanding block 150 grit lightly stroke sawed edges knocks off fuzz left jigsaw gives perfect strips nice feature about process strips same hardness have same grain structuregreat longerons spars modeler should have Perma 42 Model Aviation Grit sanders DG Products come coarse fine flat round will chew up material fast clog grit work equally well foam balsa plywood fiberglas An example 81 %-size Goldberg Sail plane built wing elliptical whole airplane elliptical trailing edge laminated 3A6 balsa width 3/4 pinned sticks plans wicked thin cyanoacrylate glue CyA tween CyA balsa sand wellthe balsa goes CyA stays placing rear wing edge bench able sand lami nated trailing edge using coarse Perma-Grit about 20 mm worked well did leading edge tail surfaces same way method lami author has active modeler over4Oyearsln Free Flight Rubberand Gas Control Line Speed now Radio Con trol During WW ii hewasa wind tunnel tech nicianatLangleyFieldVAanda memberof Hampton Brain Busters MAC Hes li censed radio operator W7GXR Current RC interests Quarter Scale Sailpianes Old-Timers director au dio-visual section Motorola Phoenix before joining Ace RC 1980 marketing manager Member Mid-Missouri Modelers nated construction very light strong cowl made fiberglass over foam Naturally very rough cowl matter minutes smooth sur face using coarse Perma-Grit After glass cloth finished fine sand paper dissolved foam thinner Doc Mathews says idea know thought first Ed Actually Doc says idea came him vision reading Hobby Poxy EZ-Duzit booklet found round files hardware store ordinarily used Cut-off disks Dremel Moto Tool can strengthened last longer byan applica tion cyanoacrylate glue Also handy Carbide Drum Cutters sold Robart disk sander Merit Abrasive Prod hard ware store item Tuf-Grind cut-off wheels House Balsa Latterare fibertype materiai suitable heavy-dutycutting January1985 43 rip fence -in ply isa handy addition Dremel jigsaw custom-cutting balsa strips way can make longerons spars desired same hardness grain round files leftwere bought hardware store homemade handles added Original ly meant sharpening chainsaw blades will nicely cut wood though loading-up quickly fiberglass plastic metal three center tools familiar Perma-Grit sanders DG Products chew up material fast last almost forever dont get clogged Homemade round sanders have sandpaper wrapped/glued around dowels sharpening chainsaw blades very sharp will cut wood fiberglass plastic metal load up quickly working wood use stiff wire brush clean frequently-used cutting device Dremel Moto Tool Cut-off disks ex cellent cutting music wire make short work A-in drill rod always use safety goggles strengthen disks place end round toothpick stuck piece balsa foam Put light coating thin CyA disk soaks way through disk dry will find has less tendency break will last much longer Another nifty product Carbide Drum Cutter Robart cutters fit Dremel 407 mandrel like Perma-Grit eat away material seconds great hollowing-out balsa cowls etc dont load up useful item found hardware store disk sander Merit Abrasive Products chucks Dremel Moto Tool comes assorted grits disks snap out locking cam action Ive used wood rounding off corners sheet aluminum House Balsa makes cut-off wheel called Tuf-Grind fiber-type material work well heavy-duty cutting long-lasting also much safer use Dremel disks make wider cut though Dremel has wide assortment cutters grinders No 115 cutter best Ive seen cutting various open ings plastic cowls marking gauge handy modeling tool shown small-sized ver sion carpenters marking gauge ball point pen refill used place metal scribe Use mark centerline ailerons elevators rudders application doesnt have set exact midpoint just mark side surface gap middle make hinge slot have rib template wing needs modified sheeting use cap strips set gauge thickness required Run gauge around edge template Sand materi al away up line have new template cutting foam core rib built-up wing will find appli cations tool often have needed third hand ubiquitous clothespin has used modelers ages variations pictured add utility Cut off jaws two clothes pins Glue two together have wide-jaw clip Before glue gether cut slot lengthwise inside of remaining jaws use cut off wheel X-Acto knife slot Continued page 141 44 Model Aviation tool isa small-size edition ofa carpenters marking gauge using ballpoint pen refill place scribe can build yourself may want get made Ace RC Ah amazing versatile spring-type clothespin Shown several possible vari ations use clamps tweezers Mount block practical third hand Handrills convenient some applications hand power drills takes inexpensive set small twist drills hardware store some clothes pole handles lumberyard Oryou can purchase Handrills put out Ace RC S KY FOX SPORT FLYER Wing Span Wing Area Length Weight Engine Radio SEE YOUR 54 Inches 620 Sq 43 Inches 55 Lbs 40 50 4 Channel DEALER RLA MODELS513866-0105 P 0 BOX 640 WEST CARROLLTON OHIO 45449 Direct Orders Send check money order pay shipping handling Ohio residents add 6% Sales Tax $7495 problemand suggested solu tion problem group formerly all-airplane club has taken interest flying Helicopters want fly club field isnt working out After considering alternate solutions some make sense now looking idea 1 Survey members find out RC channels using purpose 2 Assign Airplane Only Heli copter Only channels club basis according distribution falls now will make sense later Mike leaning toward idea Helicopters should use 72400 Mhz under take over replacement low-band channels released 1987 Airplanes should use RC38 up now forever reas oning airplanes usually fly higher farther away control trans mitters hence likely see destructive interference operating old even-numbered channels Aiso fields area getting smaller fewer number seems likely choppers will replace airplanes ever-increasing percentages number available channels will increase about same rate need increases What think idea Now dont flip back Bob Kopskis feature article get authoritative word what went Hatfield George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 FLYING NEAR AIRPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY ToolslCostlow Continued page 44 will hold servo amplifier other small printed circuit board can glue spacer between hold wider objects Glue some modified clips short piece 2 4 wood will have stationary mount clips Take clothespin apart reverse spring makes tweezer type clip can also sand nose clothes pin angle will give much closer grip Avoid cheap clothespins have found just arent worth less couple dollars should able get bag 50 good quality clips get very frustrated have drill holes model An electric drill big clumsy usually need hand drill ties up both hands its awk ward hold fuselage between knees drill looking solution came up what call Handrills Generally about five drill bits will cover appli cations some stores have set couple dollars Pick up 2-ft length clothes pole lumberyard Cut suitable lengths used 3-in pieces may want try 2 smaller bits possible use drill press next step bits bought drill hole center end length Rough-up shank bit press drilled holes Use thin CyA apply around bit until wood wont absorb anymore Mark Handrills its respective size may want make small stand hold drills Use would screwdriver make holes firewalls engine mounts fuel lines pushrods etc A-in bit perfect drilling holes servo rails No 2 screws wont replace regu lar drill will surprised applications have outset mentioned some ideas stolen originated compliments fine idea Check local hobby shop items mentioned contact following manufacturers Dremel Racine WI 53406 DG Products 209 Carrlands Dr Dayton OH 45429 Robart 310 N 5th St Charles IL 60174 House Balsa 20134 State Rd Cer ritos CA 90701 Merit Abrasive Products 201 W Man ville PO Box 5447 Compton CA 90224 RC SoaringlPruss Continued page 47 month happy provide picture finished product mod el flown two days after picture taken May article Martin reports after satisfactory test flights 22 pounds lead ballast added increase performance brought weight bird up 75 kg thats about 164 pounds bird DG-202 scale three-and-a-half Span five meters fuselage length two meters Airfoils used wing Wortmann sections start FX6l-163 transition FX-140 subsequently changing FX6O-126 stab measures 0164 meters has NACA 0012 section Wing area just under square meter Birds type designed primarily slope flying fully aerobatic contrast Bamerts creation Larry Jolly shows latest designs January1985 141 Engineered sport modeler mind
Edition: Model Aviation - 1985/01
Page Numbers: 42, 43, 44, 141
TOOLS TO BUILD model airplanes range simple exotic As rule though modelers start knife some pins glue sandpaper As time goes add tool chest items enable build faster better Costlows Law says will never have right tools need After building models 40 years still am looking elusive right tool items described bought built stolen idea someone else Hopefully some may some help youre building traditional style invariably need some odd-sized sticks have access power tools world cut balsa sticks Dremel jigsaw idea new has written about before though several variations may useful use piece A-in plywood rip fence Two slots cut ply clear 6-32 screws screw size critical Two holes drilled tapped saw table screws match slots Set blade cutting side table way length can cut Measure distance blade ply fence thickness sticks need Run some tests scrap wood cases fence will have angled since blade almost never straight Check widths satisfied rip number sticks need Lay strips have cut flat sur face sawed edges up Using sanding block 150 grit lightly stroke sawed edges knocks off fuzz left jigsaw gives perfect strips nice feature about process strips same hardness have same grain structuregreat longerons spars modeler should have Perma 42 Model Aviation Grit sanders DG Products come coarse fine flat round will chew up material fast clog grit work equally well foam balsa plywood fiberglas An example 81 %-size Goldberg Sail plane built wing elliptical whole airplane elliptical trailing edge laminated 3A6 balsa width 3/4 pinned sticks plans wicked thin cyanoacrylate glue CyA tween CyA balsa sand wellthe balsa goes CyA stays placing rear wing edge bench able sand lami nated trailing edge using coarse Perma-Grit about 20 mm worked well did leading edge tail surfaces same way method lami author has active modeler over4Oyearsln Free Flight Rubberand Gas Control Line Speed now Radio Con trol During WW ii hewasa wind tunnel tech nicianatLangleyFieldVAanda memberof Hampton Brain Busters MAC Hes li censed radio operator W7GXR Current RC interests Quarter Scale Sailpianes Old-Timers director au dio-visual section Motorola Phoenix before joining Ace RC 1980 marketing manager Member Mid-Missouri Modelers nated construction very light strong cowl made fiberglass over foam Naturally very rough cowl matter minutes smooth sur face using coarse Perma-Grit After glass cloth finished fine sand paper dissolved foam thinner Doc Mathews says idea know thought first Ed Actually Doc says idea came him vision reading Hobby Poxy EZ-Duzit booklet found round files hardware store ordinarily used Cut-off disks Dremel Moto Tool can strengthened last longer byan applica tion cyanoacrylate glue Also handy Carbide Drum Cutters sold Robart disk sander Merit Abrasive Prod hard ware store item Tuf-Grind cut-off wheels House Balsa Latterare fibertype materiai suitable heavy-dutycutting January1985 43 rip fence -in ply isa handy addition Dremel jigsaw custom-cutting balsa strips way can make longerons spars desired same hardness grain round files leftwere bought hardware store homemade handles added Original ly meant sharpening chainsaw blades will nicely cut wood though loading-up quickly fiberglass plastic metal three center tools familiar Perma-Grit sanders DG Products chew up material fast last almost forever dont get clogged Homemade round sanders have sandpaper wrapped/glued around dowels sharpening chainsaw blades very sharp will cut wood fiberglass plastic metal load up quickly working wood use stiff wire brush clean frequently-used cutting device Dremel Moto Tool Cut-off disks ex cellent cutting music wire make short work A-in drill rod always use safety goggles strengthen disks place end round toothpick stuck piece balsa foam Put light coating thin CyA disk soaks way through disk dry will find has less tendency break will last much longer Another nifty product Carbide Drum Cutter Robart cutters fit Dremel 407 mandrel like Perma-Grit eat away material seconds great hollowing-out balsa cowls etc dont load up useful item found hardware store disk sander Merit Abrasive Products chucks Dremel Moto Tool comes assorted grits disks snap out locking cam action Ive used wood rounding off corners sheet aluminum House Balsa makes cut-off wheel called Tuf-Grind fiber-type material work well heavy-duty cutting long-lasting also much safer use Dremel disks make wider cut though Dremel has wide assortment cutters grinders No 115 cutter best Ive seen cutting various open ings plastic cowls marking gauge handy modeling tool shown small-sized ver sion carpenters marking gauge ball point pen refill used place metal scribe Use mark centerline ailerons elevators rudders application doesnt have set exact midpoint just mark side surface gap middle make hinge slot have rib template wing needs modified sheeting use cap strips set gauge thickness required Run gauge around edge template Sand materi al away up line have new template cutting foam core rib built-up wing will find appli cations tool often have needed third hand ubiquitous clothespin has used modelers ages variations pictured add utility Cut off jaws two clothes pins Glue two together have wide-jaw clip Before glue gether cut slot lengthwise inside of remaining jaws use cut off wheel X-Acto knife slot Continued page 141 44 Model Aviation tool isa small-size edition ofa carpenters marking gauge using ballpoint pen refill place scribe can build yourself may want get made Ace RC Ah amazing versatile spring-type clothespin Shown several possible vari ations use clamps tweezers Mount block practical third hand Handrills convenient some applications hand power drills takes inexpensive set small twist drills hardware store some clothes pole handles lumberyard Oryou can purchase Handrills put out Ace RC S KY FOX SPORT FLYER Wing Span Wing Area Length Weight Engine Radio SEE YOUR 54 Inches 620 Sq 43 Inches 55 Lbs 40 50 4 Channel DEALER RLA MODELS513866-0105 P 0 BOX 640 WEST CARROLLTON OHIO 45449 Direct Orders Send check money order pay shipping handling Ohio residents add 6% Sales Tax $7495 problemand suggested solu tion problem group formerly all-airplane club has taken interest flying Helicopters want fly club field isnt working out After considering alternate solutions some make sense now looking idea 1 Survey members find out RC channels using purpose 2 Assign Airplane Only Heli copter Only channels club basis according distribution falls now will make sense later Mike leaning toward idea Helicopters should use 72400 Mhz under take over replacement low-band channels released 1987 Airplanes should use RC38 up now forever reas oning airplanes usually fly higher farther away control trans mitters hence likely see destructive interference operating old even-numbered channels Aiso fields area getting smaller fewer number seems likely choppers will replace airplanes ever-increasing percentages number available channels will increase about same rate need increases What think idea Now dont flip back Bob Kopskis feature article get authoritative word what went Hatfield George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 FLYING NEAR AIRPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY ToolslCostlow Continued page 44 will hold servo amplifier other small printed circuit board can glue spacer between hold wider objects Glue some modified clips short piece 2 4 wood will have stationary mount clips Take clothespin apart reverse spring makes tweezer type clip can also sand nose clothes pin angle will give much closer grip Avoid cheap clothespins have found just arent worth less couple dollars should able get bag 50 good quality clips get very frustrated have drill holes model An electric drill big clumsy usually need hand drill ties up both hands its awk ward hold fuselage between knees drill looking solution came up what call Handrills Generally about five drill bits will cover appli cations some stores have set couple dollars Pick up 2-ft length clothes pole lumberyard Cut suitable lengths used 3-in pieces may want try 2 smaller bits possible use drill press next step bits bought drill hole center end length Rough-up shank bit press drilled holes Use thin CyA apply around bit until wood wont absorb anymore Mark Handrills its respective size may want make small stand hold drills Use would screwdriver make holes firewalls engine mounts fuel lines pushrods etc A-in bit perfect drilling holes servo rails No 2 screws wont replace regu lar drill will surprised applications have outset mentioned some ideas stolen originated compliments fine idea Check local hobby shop items mentioned contact following manufacturers Dremel Racine WI 53406 DG Products 209 Carrlands Dr Dayton OH 45429 Robart 310 N 5th St Charles IL 60174 House Balsa 20134 State Rd Cer ritos CA 90701 Merit Abrasive Products 201 W Man ville PO Box 5447 Compton CA 90224 RC SoaringlPruss Continued page 47 month happy provide picture finished product mod el flown two days after picture taken May article Martin reports after satisfactory test flights 22 pounds lead ballast added increase performance brought weight bird up 75 kg thats about 164 pounds bird DG-202 scale three-and-a-half Span five meters fuselage length two meters Airfoils used wing Wortmann sections start FX6l-163 transition FX-140 subsequently changing FX6O-126 stab measures 0164 meters has NACA 0012 section Wing area just under square meter Birds type designed primarily slope flying fully aerobatic contrast Bamerts creation Larry Jolly shows latest designs January1985 141 Engineered sport modeler mind
Edition: Model Aviation - 1985/01
Page Numbers: 42, 43, 44, 141
TOOLS TO BUILD model airplanes range simple exotic As rule though modelers start knife some pins glue sandpaper As time goes add tool chest items enable build faster better Costlows Law says will never have right tools need After building models 40 years still am looking elusive right tool items described bought built stolen idea someone else Hopefully some may some help youre building traditional style invariably need some odd-sized sticks have access power tools world cut balsa sticks Dremel jigsaw idea new has written about before though several variations may useful use piece A-in plywood rip fence Two slots cut ply clear 6-32 screws screw size critical Two holes drilled tapped saw table screws match slots Set blade cutting side table way length can cut Measure distance blade ply fence thickness sticks need Run some tests scrap wood cases fence will have angled since blade almost never straight Check widths satisfied rip number sticks need Lay strips have cut flat sur face sawed edges up Using sanding block 150 grit lightly stroke sawed edges knocks off fuzz left jigsaw gives perfect strips nice feature about process strips same hardness have same grain structuregreat longerons spars modeler should have Perma 42 Model Aviation Grit sanders DG Products come coarse fine flat round will chew up material fast clog grit work equally well foam balsa plywood fiberglas An example 81 %-size Goldberg Sail plane built wing elliptical whole airplane elliptical trailing edge laminated 3A6 balsa width 3/4 pinned sticks plans wicked thin cyanoacrylate glue CyA tween CyA balsa sand wellthe balsa goes CyA stays placing rear wing edge bench able sand lami nated trailing edge using coarse Perma-Grit about 20 mm worked well did leading edge tail surfaces same way method lami author has active modeler over4Oyearsln Free Flight Rubberand Gas Control Line Speed now Radio Con trol During WW ii hewasa wind tunnel tech nicianatLangleyFieldVAanda memberof Hampton Brain Busters MAC Hes li censed radio operator W7GXR Current RC interests Quarter Scale Sailpianes Old-Timers director au dio-visual section Motorola Phoenix before joining Ace RC 1980 marketing manager Member Mid-Missouri Modelers nated construction very light strong cowl made fiberglass over foam Naturally very rough cowl matter minutes smooth sur face using coarse Perma-Grit After glass cloth finished fine sand paper dissolved foam thinner Doc Mathews says idea know thought first Ed Actually Doc says idea came him vision reading Hobby Poxy EZ-Duzit booklet found round files hardware store ordinarily used Cut-off disks Dremel Moto Tool can strengthened last longer byan applica tion cyanoacrylate glue Also handy Carbide Drum Cutters sold Robart disk sander Merit Abrasive Prod hard ware store item Tuf-Grind cut-off wheels House Balsa Latterare fibertype materiai suitable heavy-dutycutting January1985 43 rip fence -in ply isa handy addition Dremel jigsaw custom-cutting balsa strips way can make longerons spars desired same hardness grain round files leftwere bought hardware store homemade handles added Original ly meant sharpening chainsaw blades will nicely cut wood though loading-up quickly fiberglass plastic metal three center tools familiar Perma-Grit sanders DG Products chew up material fast last almost forever dont get clogged Homemade round sanders have sandpaper wrapped/glued around dowels sharpening chainsaw blades very sharp will cut wood fiberglass plastic metal load up quickly working wood use stiff wire brush clean frequently-used cutting device Dremel Moto Tool Cut-off disks ex cellent cutting music wire make short work A-in drill rod always use safety goggles strengthen disks place end round toothpick stuck piece balsa foam Put light coating thin CyA disk soaks way through disk dry will find has less tendency break will last much longer Another nifty product Carbide Drum Cutter Robart cutters fit Dremel 407 mandrel like Perma-Grit eat away material seconds great hollowing-out balsa cowls etc dont load up useful item found hardware store disk sander Merit Abrasive Products chucks Dremel Moto Tool comes assorted grits disks snap out locking cam action Ive used wood rounding off corners sheet aluminum House Balsa makes cut-off wheel called Tuf-Grind fiber-type material work well heavy-duty cutting long-lasting also much safer use Dremel disks make wider cut though Dremel has wide assortment cutters grinders No 115 cutter best Ive seen cutting various open ings plastic cowls marking gauge handy modeling tool shown small-sized ver sion carpenters marking gauge ball point pen refill used place metal scribe Use mark centerline ailerons elevators rudders application doesnt have set exact midpoint just mark side surface gap middle make hinge slot have rib template wing needs modified sheeting use cap strips set gauge thickness required Run gauge around edge template Sand materi al away up line have new template cutting foam core rib built-up wing will find appli cations tool often have needed third hand ubiquitous clothespin has used modelers ages variations pictured add utility Cut off jaws two clothes pins Glue two together have wide-jaw clip Before glue gether cut slot lengthwise inside of remaining jaws use cut off wheel X-Acto knife slot Continued page 141 44 Model Aviation tool isa small-size edition ofa carpenters marking gauge using ballpoint pen refill place scribe can build yourself may want get made Ace RC Ah amazing versatile spring-type clothespin Shown several possible vari ations use clamps tweezers Mount block practical third hand Handrills convenient some applications hand power drills takes inexpensive set small twist drills hardware store some clothes pole handles lumberyard Oryou can purchase Handrills put out Ace RC S KY FOX SPORT FLYER Wing Span Wing Area Length Weight Engine Radio SEE YOUR 54 Inches 620 Sq 43 Inches 55 Lbs 40 50 4 Channel DEALER RLA MODELS513866-0105 P 0 BOX 640 WEST CARROLLTON OHIO 45449 Direct Orders Send check money order pay shipping handling Ohio residents add 6% Sales Tax $7495 problemand suggested solu tion problem group formerly all-airplane club has taken interest flying Helicopters want fly club field isnt working out After considering alternate solutions some make sense now looking idea 1 Survey members find out RC channels using purpose 2 Assign Airplane Only Heli copter Only channels club basis according distribution falls now will make sense later Mike leaning toward idea Helicopters should use 72400 Mhz under take over replacement low-band channels released 1987 Airplanes should use RC38 up now forever reas oning airplanes usually fly higher farther away control trans mitters hence likely see destructive interference operating old even-numbered channels Aiso fields area getting smaller fewer number seems likely choppers will replace airplanes ever-increasing percentages number available channels will increase about same rate need increases What think idea Now dont flip back Bob Kopskis feature article get authoritative word what went Hatfield George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 FLYING NEAR AIRPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY ToolslCostlow Continued page 44 will hold servo amplifier other small printed circuit board can glue spacer between hold wider objects Glue some modified clips short piece 2 4 wood will have stationary mount clips Take clothespin apart reverse spring makes tweezer type clip can also sand nose clothes pin angle will give much closer grip Avoid cheap clothespins have found just arent worth less couple dollars should able get bag 50 good quality clips get very frustrated have drill holes model An electric drill big clumsy usually need hand drill ties up both hands its awk ward hold fuselage between knees drill looking solution came up what call Handrills Generally about five drill bits will cover appli cations some stores have set couple dollars Pick up 2-ft length clothes pole lumberyard Cut suitable lengths used 3-in pieces may want try 2 smaller bits possible use drill press next step bits bought drill hole center end length Rough-up shank bit press drilled holes Use thin CyA apply around bit until wood wont absorb anymore Mark Handrills its respective size may want make small stand hold drills Use would screwdriver make holes firewalls engine mounts fuel lines pushrods etc A-in bit perfect drilling holes servo rails No 2 screws wont replace regu lar drill will surprised applications have outset mentioned some ideas stolen originated compliments fine idea Check local hobby shop items mentioned contact following manufacturers Dremel Racine WI 53406 DG Products 209 Carrlands Dr Dayton OH 45429 Robart 310 N 5th St Charles IL 60174 House Balsa 20134 State Rd Cer ritos CA 90701 Merit Abrasive Products 201 W Man ville PO Box 5447 Compton CA 90224 RC SoaringlPruss Continued page 47 month happy provide picture finished product mod el flown two days after picture taken May article Martin reports after satisfactory test flights 22 pounds lead ballast added increase performance brought weight bird up 75 kg thats about 164 pounds bird DG-202 scale three-and-a-half Span five meters fuselage length two meters Airfoils used wing Wortmann sections start FX6l-163 transition FX-140 subsequently changing FX6O-126 stab measures 0164 meters has NACA 0012 section Wing area just under square meter Birds type designed primarily slope flying fully aerobatic contrast Bamerts creation Larry Jolly shows latest designs January1985 141 Engineered sport modeler mind
Edition: Model Aviation - 1985/01
Page Numbers: 42, 43, 44, 141
TOOLS TO BUILD model airplanes range simple exotic As rule though modelers start knife some pins glue sandpaper As time goes add tool chest items enable build faster better Costlows Law says will never have right tools need After building models 40 years still am looking elusive right tool items described bought built stolen idea someone else Hopefully some may some help youre building traditional style invariably need some odd-sized sticks have access power tools world cut balsa sticks Dremel jigsaw idea new has written about before though several variations may useful use piece A-in plywood rip fence Two slots cut ply clear 6-32 screws screw size critical Two holes drilled tapped saw table screws match slots Set blade cutting side table way length can cut Measure distance blade ply fence thickness sticks need Run some tests scrap wood cases fence will have angled since blade almost never straight Check widths satisfied rip number sticks need Lay strips have cut flat sur face sawed edges up Using sanding block 150 grit lightly stroke sawed edges knocks off fuzz left jigsaw gives perfect strips nice feature about process strips same hardness have same grain structuregreat longerons spars modeler should have Perma 42 Model Aviation Grit sanders DG Products come coarse fine flat round will chew up material fast clog grit work equally well foam balsa plywood fiberglas An example 81 %-size Goldberg Sail plane built wing elliptical whole airplane elliptical trailing edge laminated 3A6 balsa width 3/4 pinned sticks plans wicked thin cyanoacrylate glue CyA tween CyA balsa sand wellthe balsa goes CyA stays placing rear wing edge bench able sand lami nated trailing edge using coarse Perma-Grit about 20 mm worked well did leading edge tail surfaces same way method lami author has active modeler over4Oyearsln Free Flight Rubberand Gas Control Line Speed now Radio Con trol During WW ii hewasa wind tunnel tech nicianatLangleyFieldVAanda memberof Hampton Brain Busters MAC Hes li censed radio operator W7GXR Current RC interests Quarter Scale Sailpianes Old-Timers director au dio-visual section Motorola Phoenix before joining Ace RC 1980 marketing manager Member Mid-Missouri Modelers nated construction very light strong cowl made fiberglass over foam Naturally very rough cowl matter minutes smooth sur face using coarse Perma-Grit After glass cloth finished fine sand paper dissolved foam thinner Doc Mathews says idea know thought first Ed Actually Doc says idea came him vision reading Hobby Poxy EZ-Duzit booklet found round files hardware store ordinarily used Cut-off disks Dremel Moto Tool can strengthened last longer byan applica tion cyanoacrylate glue Also handy Carbide Drum Cutters sold Robart disk sander Merit Abrasive Prod hard ware store item Tuf-Grind cut-off wheels House Balsa Latterare fibertype materiai suitable heavy-dutycutting January1985 43 rip fence -in ply isa handy addition Dremel jigsaw custom-cutting balsa strips way can make longerons spars desired same hardness grain round files leftwere bought hardware store homemade handles added Original ly meant sharpening chainsaw blades will nicely cut wood though loading-up quickly fiberglass plastic metal three center tools familiar Perma-Grit sanders DG Products chew up material fast last almost forever dont get clogged Homemade round sanders have sandpaper wrapped/glued around dowels sharpening chainsaw blades very sharp will cut wood fiberglass plastic metal load up quickly working wood use stiff wire brush clean frequently-used cutting device Dremel Moto Tool Cut-off disks ex cellent cutting music wire make short work A-in drill rod always use safety goggles strengthen disks place end round toothpick stuck piece balsa foam Put light coating thin CyA disk soaks way through disk dry will find has less tendency break will last much longer Another nifty product Carbide Drum Cutter Robart cutters fit Dremel 407 mandrel like Perma-Grit eat away material seconds great hollowing-out balsa cowls etc dont load up useful item found hardware store disk sander Merit Abrasive Products chucks Dremel Moto Tool comes assorted grits disks snap out locking cam action Ive used wood rounding off corners sheet aluminum House Balsa makes cut-off wheel called Tuf-Grind fiber-type material work well heavy-duty cutting long-lasting also much safer use Dremel disks make wider cut though Dremel has wide assortment cutters grinders No 115 cutter best Ive seen cutting various open ings plastic cowls marking gauge handy modeling tool shown small-sized ver sion carpenters marking gauge ball point pen refill used place metal scribe Use mark centerline ailerons elevators rudders application doesnt have set exact midpoint just mark side surface gap middle make hinge slot have rib template wing needs modified sheeting use cap strips set gauge thickness required Run gauge around edge template Sand materi al away up line have new template cutting foam core rib built-up wing will find appli cations tool often have needed third hand ubiquitous clothespin has used modelers ages variations pictured add utility Cut off jaws two clothes pins Glue two together have wide-jaw clip Before glue gether cut slot lengthwise inside of remaining jaws use cut off wheel X-Acto knife slot Continued page 141 44 Model Aviation tool isa small-size edition ofa carpenters marking gauge using ballpoint pen refill place scribe can build yourself may want get made Ace RC Ah amazing versatile spring-type clothespin Shown several possible vari ations use clamps tweezers Mount block practical third hand Handrills convenient some applications hand power drills takes inexpensive set small twist drills hardware store some clothes pole handles lumberyard Oryou can purchase Handrills put out Ace RC S KY FOX SPORT FLYER Wing Span Wing Area Length Weight Engine Radio SEE YOUR 54 Inches 620 Sq 43 Inches 55 Lbs 40 50 4 Channel DEALER RLA MODELS513866-0105 P 0 BOX 640 WEST CARROLLTON OHIO 45449 Direct Orders Send check money order pay shipping handling Ohio residents add 6% Sales Tax $7495 problemand suggested solu tion problem group formerly all-airplane club has taken interest flying Helicopters want fly club field isnt working out After considering alternate solutions some make sense now looking idea 1 Survey members find out RC channels using purpose 2 Assign Airplane Only Heli copter Only channels club basis according distribution falls now will make sense later Mike leaning toward idea Helicopters should use 72400 Mhz under take over replacement low-band channels released 1987 Airplanes should use RC38 up now forever reas oning airplanes usually fly higher farther away control trans mitters hence likely see destructive interference operating old even-numbered channels Aiso fields area getting smaller fewer number seems likely choppers will replace airplanes ever-increasing percentages number available channels will increase about same rate need increases What think idea Now dont flip back Bob Kopskis feature article get authoritative word what went Hatfield George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 FLYING NEAR AIRPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY ToolslCostlow Continued page 44 will hold servo amplifier other small printed circuit board can glue spacer between hold wider objects Glue some modified clips short piece 2 4 wood will have stationary mount clips Take clothespin apart reverse spring makes tweezer type clip can also sand nose clothes pin angle will give much closer grip Avoid cheap clothespins have found just arent worth less couple dollars should able get bag 50 good quality clips get very frustrated have drill holes model An electric drill big clumsy usually need hand drill ties up both hands its awk ward hold fuselage between knees drill looking solution came up what call Handrills Generally about five drill bits will cover appli cations some stores have set couple dollars Pick up 2-ft length clothes pole lumberyard Cut suitable lengths used 3-in pieces may want try 2 smaller bits possible use drill press next step bits bought drill hole center end length Rough-up shank bit press drilled holes Use thin CyA apply around bit until wood wont absorb anymore Mark Handrills its respective size may want make small stand hold drills Use would screwdriver make holes firewalls engine mounts fuel lines pushrods etc A-in bit perfect drilling holes servo rails No 2 screws wont replace regu lar drill will surprised applications have outset mentioned some ideas stolen originated compliments fine idea Check local hobby shop items mentioned contact following manufacturers Dremel Racine WI 53406 DG Products 209 Carrlands Dr Dayton OH 45429 Robart 310 N 5th St Charles IL 60174 House Balsa 20134 State Rd Cer ritos CA 90701 Merit Abrasive Products 201 W Man ville PO Box 5447 Compton CA 90224 RC SoaringlPruss Continued page 47 month happy provide picture finished product mod el flown two days after picture taken May article Martin reports after satisfactory test flights 22 pounds lead ballast added increase performance brought weight bird up 75 kg thats about 164 pounds bird DG-202 scale three-and-a-half Span five meters fuselage length two meters Airfoils used wing Wortmann sections start FX6l-163 transition FX-140 subsequently changing FX6O-126 stab measures 0164 meters has NACA 0012 section Wing area just under square meter Birds type designed primarily slope flying fully aerobatic contrast Bamerts creation Larry Jolly shows latest designs January1985 141 Engineered sport modeler mind