w. b author pull piano wire tubing alternately attached wing aileron Plane authors rtglnal-deeign high-performance 2-Meter Sailplane uses type hinge rudder ailerons speed brakes/flaps HERE IS inexpensive method easily making perfect hinges mov able control surfaces Originally developed high-performance RC Sailplanes hinging method can also used sizes power planes including Giant Scale piano-like hinges have already used rudders elevators flaps aileronsand flown speeds approaching 100 mph problem hinges produced metlod have following desirable characteristics 1 high degree freedom permits very large control surface movement 2 very free mov ing due low friction 3 perfect control surface alignment 4 precise no hinge slop 5 practically no gaps 6 control surface can removed seconds repairs adjust ments 7 wont loosen under vibration 8 withstands heavy loads 9 can used length control surfaces 10 made readily available lightweight inex pensive materials 11 very easy make Materials hinges made 1/16-in outside diameter aluminum tubing usually comes 12-in lengths Piano wire near-perfect fit inside tubing also standard hobby shop item wire usually comes 36-in lengths seemsas have piano hinges au thor provides new look excellent hinging method application high-performance RC Sailplanes though piano-type hinging ideal types models will also need thick gap-filling cya noacrylate adhesive such Super Jet Hot Stuff Super T Zap-A-Gap some masking similar flexible tape gap seals optional will need thin drafting Mylar sheet thin double-adhesive tape Tools 1/16-in drill bit 400-grit sand paper wire cutter razor saw small flat file something grind file end Method Construction Determine much control surface throw will require Shape leading edge control surface angle about two de 34 Model Aviation Pianos have beenpiano wire tools needed make hinges around forever vur auinor 2-Meter Sailplane shown other pictures too ciose fire Dave illustrations text explain step step make install hinges Illustrations Jim Newman ''I 31d32o - -A . \3Q0 0 -5%-i FIG 1 S 3/64 FIG 2 aluminum tubing grees greater example allow rudder move 300 shape its leading edge 310 320 slope See Fig 1 details Sand away enough leading edge produce flat will allow about 3/64-in gap See Fig 2 short piece aluminum tubing held angle run along flat scrapes rounded groove Take time Try careful keep groove straight center flat See Fig 3 Saw off -in 3/4-in piece tubing File off outside burrs Take 1/16-in drill hit slowly twist inside hole both ends tubing will enlarge taper entrances tubing piano wire can easily slip out will also remove inside burrs Gently roughen out side tub ing 400grit sandpaper L tape VA%7 glue j~v music 7TTue wire control surfaceFIG 7 April 1983 35 iL 1/16 drill C BEFOREAFTER hibThg FIG 4 control surface~ glue 1A 99FIG 5 1/4 II Imw1 control surface FIG 6 tape FIG 10 maximum deflection % ~ K double sided tape mylar note direction curve FIG 11 careful aluminum tubing bends very easily should kept straight possible See Fig 4 Carefully adhere short piece tubing end control surface careful get adhesive inside tubing See Fig 5 Cut piano wire lengthabout /4-in longer full length con trol surface File grind end point Make 900 bend about -in other end See Fig 6 Cut off another piece tubing about same length Treat both ends drill bit before Roughen outside 400-grit sandpaper Starting end control surface insert pointed end wire tubing already adhered con trol surface Now slip loose short piece tubing over wire Slide along * 0 wire until just about touches adhered piece tubing Carefully place control surface posi tion wing other fixed surface exact place want ad hered tubing should just about touch planes surface Use tape hold control surface place See Fig 7 Attach second piece tubing plane control surface placing single drop cyanoacrylate fixed surface center tubing Make sure control surface still aligned After drop adhesive has set remove wire control surface Carefully run bead adhesive along full length both sides second piece tubing let get inside tubing Allow set Keep repeating process thereby building hinge along entire length control surface Make sure alternate adhering tubing fixed surface control surface Keep control surface alignment dont allow wan der out position direction Check free movement let go control surface should easily fall its own weight doesnt check burrs kinks tubing wire Also ensure no two pieces tubing butted against another tightly scrape control surface moves Sand off excess adhesive lumps next steps occur after completion plane surfaces covered use Super MonoKote Important note gap between control surface fixed surface less thickness covering material before covering carefully Continued page 123 0 Sailplane brake/flap deployed left closed above apparent hinging method allows precise movement sur faces perfect alignmentimportant plus factors 36 Model Aviation covering 11Jj%jI sand away clear covering FIG 8 o coveringFIG 9 transmitters pulse-timing 15 ins s less industry standard should able plug servo youve got set assuming have right plug first-look standpoint system looks like exceptionally good value money great way sample new RC channels five years hard work members AMA Frequency Committee have provided Kudos Tower Hobbies having guts ready Day George M Myers 70 Froehlich Farm Rd Hicksvjlle NY 11801 Hinges/Peltz Continued page 36 sand away just enough surface between piece tubing allow piece covering material slide through easily See Fig 8 covering plane control sur faces run covering material around piece tubing completely enclose will hide its aluminum color will also serve strengthen hinge con siderably See Fig 9 make optional gap seals suggested high-movement surfaces large bevel angles follow steps Cut piece drafting Mylar use acetate will buckle changing hu midity temperature exact length control surface twice de sired width strip width deter mined moving control surface its maximum throw adding one-half width double sticky tape plus another /8-in See Fig 10 Mark center Mylar strip lay down double-sided tape along center full length strip came roll Mylar should have natural curve adhere tape convex side will press against control surface See Fig 11 Cut strip half along full length tape now exact edge what will front gap seal Starting end carefully lay down Mylar strip attached fixed surface control surface will act gap seal now have perfect control sur face hinges could hope Workshop/Kruse Continued oaae 40 us keep overall impression shop its neat well-organized appearance would make vety comfortable re laxed place spend time Through very small outlay money combined genuity planning Harold Rouse has made hobby integral part life style workshop showplace home RC Aerobatics/Van Putte Continued page 43 making aileron corrections use Low-rate ai leron inside loops enabling use fairly large aileron stick corrections still result smooth airplane response Recovery loop achieved letting go elevator stick input just airplane passes through horizontal may little difficult judge first confidence maneuver developed gets easier easier takes care Inside Loops Fortunately lot what takes perform Inside Loops prop erly also works Reverse Outside Loops toughest parts Reverse Outside Loops whether youre doing three entry exit way both parts well leam proper technique practice Timing Important doesnt come easy fliers half-roll inverted flight should ini tiated early airplane should inverted second prior elevator push loop takes lot distance perform half-roll inverted flight fliers think airplane set up perform three rolls about five six seconds half-roll will consume about second means maneuver must initiated about two seconds before airplane passes front flier Since Pattem airplanes travel about 100 mph con verts about 300 feet travel during half roll inverted flight Start maneuver early Most airplanes require touch Down elevator following half-roll keep airplane level flight timing technique come Some fliers start put down just before half roll completed others walt until airplane inverted alrplane different needs different technique find out what works yours Reverse Outside Loops performed just like Inside Loops except Down elevator used insted Up elevator Rudder corrections tricky because everything seems backwards Fliers use kinds mental tricks figure out way push rudder control best Ive heard imagine youre hanging straps inside airplane what comes nat urally Dont surprised have lot trouble learning proper rudder input direction occasion some really good fliers have problems figunng out what use Aileron corrections usually fairly simple because airplane responds way expect toughest part Reverse Outside Loop exit Timing critical because just right amount Down elevator must released airplane passes through horizontal take air plane out loop level flight Most fliers either wait too long dont relese enough Down elevator airplane baboons wish dime time airplane ballooned exiting Three Outside Loops However easy wouldnt get much satisfaction learning properly After airplane has horizontal about second roll up upright flight Depending airplane small amount Down ele vator may released start roll dur ing roll just alrplane wings level again Thats Inside Loops Reverse Outside Loops really need both well technique practice hots practice keep telling fliers dont practice theyll get old wont get good Get good April 1983 123 November 1982 issue Sentral II
Edition: Model Aviation - 1983/04
Page Numbers: 34, 35, 36, 123
w. b author pull piano wire tubing alternately attached wing aileron Plane authors rtglnal-deeign high-performance 2-Meter Sailplane uses type hinge rudder ailerons speed brakes/flaps HERE IS inexpensive method easily making perfect hinges mov able control surfaces Originally developed high-performance RC Sailplanes hinging method can also used sizes power planes including Giant Scale piano-like hinges have already used rudders elevators flaps aileronsand flown speeds approaching 100 mph problem hinges produced metlod have following desirable characteristics 1 high degree freedom permits very large control surface movement 2 very free mov ing due low friction 3 perfect control surface alignment 4 precise no hinge slop 5 practically no gaps 6 control surface can removed seconds repairs adjust ments 7 wont loosen under vibration 8 withstands heavy loads 9 can used length control surfaces 10 made readily available lightweight inex pensive materials 11 very easy make Materials hinges made 1/16-in outside diameter aluminum tubing usually comes 12-in lengths Piano wire near-perfect fit inside tubing also standard hobby shop item wire usually comes 36-in lengths seemsas have piano hinges au thor provides new look excellent hinging method application high-performance RC Sailplanes though piano-type hinging ideal types models will also need thick gap-filling cya noacrylate adhesive such Super Jet Hot Stuff Super T Zap-A-Gap some masking similar flexible tape gap seals optional will need thin drafting Mylar sheet thin double-adhesive tape Tools 1/16-in drill bit 400-grit sand paper wire cutter razor saw small flat file something grind file end Method Construction Determine much control surface throw will require Shape leading edge control surface angle about two de 34 Model Aviation Pianos have beenpiano wire tools needed make hinges around forever vur auinor 2-Meter Sailplane shown other pictures too ciose fire Dave illustrations text explain step step make install hinges Illustrations Jim Newman ''I 31d32o - -A . \3Q0 0 -5%-i FIG 1 S 3/64 FIG 2 aluminum tubing grees greater example allow rudder move 300 shape its leading edge 310 320 slope See Fig 1 details Sand away enough leading edge produce flat will allow about 3/64-in gap See Fig 2 short piece aluminum tubing held angle run along flat scrapes rounded groove Take time Try careful keep groove straight center flat See Fig 3 Saw off -in 3/4-in piece tubing File off outside burrs Take 1/16-in drill hit slowly twist inside hole both ends tubing will enlarge taper entrances tubing piano wire can easily slip out will also remove inside burrs Gently roughen out side tub ing 400grit sandpaper L tape VA%7 glue j~v music 7TTue wire control surfaceFIG 7 April 1983 35 iL 1/16 drill C BEFOREAFTER hibThg FIG 4 control surface~ glue 1A 99FIG 5 1/4 II Imw1 control surface FIG 6 tape FIG 10 maximum deflection % ~ K double sided tape mylar note direction curve FIG 11 careful aluminum tubing bends very easily should kept straight possible See Fig 4 Carefully adhere short piece tubing end control surface careful get adhesive inside tubing See Fig 5 Cut piano wire lengthabout /4-in longer full length con trol surface File grind end point Make 900 bend about -in other end See Fig 6 Cut off another piece tubing about same length Treat both ends drill bit before Roughen outside 400-grit sandpaper Starting end control surface insert pointed end wire tubing already adhered con trol surface Now slip loose short piece tubing over wire Slide along * 0 wire until just about touches adhered piece tubing Carefully place control surface posi tion wing other fixed surface exact place want ad hered tubing should just about touch planes surface Use tape hold control surface place See Fig 7 Attach second piece tubing plane control surface placing single drop cyanoacrylate fixed surface center tubing Make sure control surface still aligned After drop adhesive has set remove wire control surface Carefully run bead adhesive along full length both sides second piece tubing let get inside tubing Allow set Keep repeating process thereby building hinge along entire length control surface Make sure alternate adhering tubing fixed surface control surface Keep control surface alignment dont allow wan der out position direction Check free movement let go control surface should easily fall its own weight doesnt check burrs kinks tubing wire Also ensure no two pieces tubing butted against another tightly scrape control surface moves Sand off excess adhesive lumps next steps occur after completion plane surfaces covered use Super MonoKote Important note gap between control surface fixed surface less thickness covering material before covering carefully Continued page 123 0 Sailplane brake/flap deployed left closed above apparent hinging method allows precise movement sur faces perfect alignmentimportant plus factors 36 Model Aviation covering 11Jj%jI sand away clear covering FIG 8 o coveringFIG 9 transmitters pulse-timing 15 ins s less industry standard should able plug servo youve got set assuming have right plug first-look standpoint system looks like exceptionally good value money great way sample new RC channels five years hard work members AMA Frequency Committee have provided Kudos Tower Hobbies having guts ready Day George M Myers 70 Froehlich Farm Rd Hicksvjlle NY 11801 Hinges/Peltz Continued page 36 sand away just enough surface between piece tubing allow piece covering material slide through easily See Fig 8 covering plane control sur faces run covering material around piece tubing completely enclose will hide its aluminum color will also serve strengthen hinge con siderably See Fig 9 make optional gap seals suggested high-movement surfaces large bevel angles follow steps Cut piece drafting Mylar use acetate will buckle changing hu midity temperature exact length control surface twice de sired width strip width deter mined moving control surface its maximum throw adding one-half width double sticky tape plus another /8-in See Fig 10 Mark center Mylar strip lay down double-sided tape along center full length strip came roll Mylar should have natural curve adhere tape convex side will press against control surface See Fig 11 Cut strip half along full length tape now exact edge what will front gap seal Starting end carefully lay down Mylar strip attached fixed surface control surface will act gap seal now have perfect control sur face hinges could hope Workshop/Kruse Continued oaae 40 us keep overall impression shop its neat well-organized appearance would make vety comfortable re laxed place spend time Through very small outlay money combined genuity planning Harold Rouse has made hobby integral part life style workshop showplace home RC Aerobatics/Van Putte Continued page 43 making aileron corrections use Low-rate ai leron inside loops enabling use fairly large aileron stick corrections still result smooth airplane response Recovery loop achieved letting go elevator stick input just airplane passes through horizontal may little difficult judge first confidence maneuver developed gets easier easier takes care Inside Loops Fortunately lot what takes perform Inside Loops prop erly also works Reverse Outside Loops toughest parts Reverse Outside Loops whether youre doing three entry exit way both parts well leam proper technique practice Timing Important doesnt come easy fliers half-roll inverted flight should ini tiated early airplane should inverted second prior elevator push loop takes lot distance perform half-roll inverted flight fliers think airplane set up perform three rolls about five six seconds half-roll will consume about second means maneuver must initiated about two seconds before airplane passes front flier Since Pattem airplanes travel about 100 mph con verts about 300 feet travel during half roll inverted flight Start maneuver early Most airplanes require touch Down elevator following half-roll keep airplane level flight timing technique come Some fliers start put down just before half roll completed others walt until airplane inverted alrplane different needs different technique find out what works yours Reverse Outside Loops performed just like Inside Loops except Down elevator used insted Up elevator Rudder corrections tricky because everything seems backwards Fliers use kinds mental tricks figure out way push rudder control best Ive heard imagine youre hanging straps inside airplane what comes nat urally Dont surprised have lot trouble learning proper rudder input direction occasion some really good fliers have problems figunng out what use Aileron corrections usually fairly simple because airplane responds way expect toughest part Reverse Outside Loop exit Timing critical because just right amount Down elevator must released airplane passes through horizontal take air plane out loop level flight Most fliers either wait too long dont relese enough Down elevator airplane baboons wish dime time airplane ballooned exiting Three Outside Loops However easy wouldnt get much satisfaction learning properly After airplane has horizontal about second roll up upright flight Depending airplane small amount Down ele vator may released start roll dur ing roll just alrplane wings level again Thats Inside Loops Reverse Outside Loops really need both well technique practice hots practice keep telling fliers dont practice theyll get old wont get good Get good April 1983 123 November 1982 issue Sentral II
Edition: Model Aviation - 1983/04
Page Numbers: 34, 35, 36, 123
w. b author pull piano wire tubing alternately attached wing aileron Plane authors rtglnal-deeign high-performance 2-Meter Sailplane uses type hinge rudder ailerons speed brakes/flaps HERE IS inexpensive method easily making perfect hinges mov able control surfaces Originally developed high-performance RC Sailplanes hinging method can also used sizes power planes including Giant Scale piano-like hinges have already used rudders elevators flaps aileronsand flown speeds approaching 100 mph problem hinges produced metlod have following desirable characteristics 1 high degree freedom permits very large control surface movement 2 very free mov ing due low friction 3 perfect control surface alignment 4 precise no hinge slop 5 practically no gaps 6 control surface can removed seconds repairs adjust ments 7 wont loosen under vibration 8 withstands heavy loads 9 can used length control surfaces 10 made readily available lightweight inex pensive materials 11 very easy make Materials hinges made 1/16-in outside diameter aluminum tubing usually comes 12-in lengths Piano wire near-perfect fit inside tubing also standard hobby shop item wire usually comes 36-in lengths seemsas have piano hinges au thor provides new look excellent hinging method application high-performance RC Sailplanes though piano-type hinging ideal types models will also need thick gap-filling cya noacrylate adhesive such Super Jet Hot Stuff Super T Zap-A-Gap some masking similar flexible tape gap seals optional will need thin drafting Mylar sheet thin double-adhesive tape Tools 1/16-in drill bit 400-grit sand paper wire cutter razor saw small flat file something grind file end Method Construction Determine much control surface throw will require Shape leading edge control surface angle about two de 34 Model Aviation Pianos have beenpiano wire tools needed make hinges around forever vur auinor 2-Meter Sailplane shown other pictures too ciose fire Dave illustrations text explain step step make install hinges Illustrations Jim Newman ''I 31d32o - -A . \3Q0 0 -5%-i FIG 1 S 3/64 FIG 2 aluminum tubing grees greater example allow rudder move 300 shape its leading edge 310 320 slope See Fig 1 details Sand away enough leading edge produce flat will allow about 3/64-in gap See Fig 2 short piece aluminum tubing held angle run along flat scrapes rounded groove Take time Try careful keep groove straight center flat See Fig 3 Saw off -in 3/4-in piece tubing File off outside burrs Take 1/16-in drill hit slowly twist inside hole both ends tubing will enlarge taper entrances tubing piano wire can easily slip out will also remove inside burrs Gently roughen out side tub ing 400grit sandpaper L tape VA%7 glue j~v music 7TTue wire control surfaceFIG 7 April 1983 35 iL 1/16 drill C BEFOREAFTER hibThg FIG 4 control surface~ glue 1A 99FIG 5 1/4 II Imw1 control surface FIG 6 tape FIG 10 maximum deflection % ~ K double sided tape mylar note direction curve FIG 11 careful aluminum tubing bends very easily should kept straight possible See Fig 4 Carefully adhere short piece tubing end control surface careful get adhesive inside tubing See Fig 5 Cut piano wire lengthabout /4-in longer full length con trol surface File grind end point Make 900 bend about -in other end See Fig 6 Cut off another piece tubing about same length Treat both ends drill bit before Roughen outside 400-grit sandpaper Starting end control surface insert pointed end wire tubing already adhered con trol surface Now slip loose short piece tubing over wire Slide along * 0 wire until just about touches adhered piece tubing Carefully place control surface posi tion wing other fixed surface exact place want ad hered tubing should just about touch planes surface Use tape hold control surface place See Fig 7 Attach second piece tubing plane control surface placing single drop cyanoacrylate fixed surface center tubing Make sure control surface still aligned After drop adhesive has set remove wire control surface Carefully run bead adhesive along full length both sides second piece tubing let get inside tubing Allow set Keep repeating process thereby building hinge along entire length control surface Make sure alternate adhering tubing fixed surface control surface Keep control surface alignment dont allow wan der out position direction Check free movement let go control surface should easily fall its own weight doesnt check burrs kinks tubing wire Also ensure no two pieces tubing butted against another tightly scrape control surface moves Sand off excess adhesive lumps next steps occur after completion plane surfaces covered use Super MonoKote Important note gap between control surface fixed surface less thickness covering material before covering carefully Continued page 123 0 Sailplane brake/flap deployed left closed above apparent hinging method allows precise movement sur faces perfect alignmentimportant plus factors 36 Model Aviation covering 11Jj%jI sand away clear covering FIG 8 o coveringFIG 9 transmitters pulse-timing 15 ins s less industry standard should able plug servo youve got set assuming have right plug first-look standpoint system looks like exceptionally good value money great way sample new RC channels five years hard work members AMA Frequency Committee have provided Kudos Tower Hobbies having guts ready Day George M Myers 70 Froehlich Farm Rd Hicksvjlle NY 11801 Hinges/Peltz Continued page 36 sand away just enough surface between piece tubing allow piece covering material slide through easily See Fig 8 covering plane control sur faces run covering material around piece tubing completely enclose will hide its aluminum color will also serve strengthen hinge con siderably See Fig 9 make optional gap seals suggested high-movement surfaces large bevel angles follow steps Cut piece drafting Mylar use acetate will buckle changing hu midity temperature exact length control surface twice de sired width strip width deter mined moving control surface its maximum throw adding one-half width double sticky tape plus another /8-in See Fig 10 Mark center Mylar strip lay down double-sided tape along center full length strip came roll Mylar should have natural curve adhere tape convex side will press against control surface See Fig 11 Cut strip half along full length tape now exact edge what will front gap seal Starting end carefully lay down Mylar strip attached fixed surface control surface will act gap seal now have perfect control sur face hinges could hope Workshop/Kruse Continued oaae 40 us keep overall impression shop its neat well-organized appearance would make vety comfortable re laxed place spend time Through very small outlay money combined genuity planning Harold Rouse has made hobby integral part life style workshop showplace home RC Aerobatics/Van Putte Continued page 43 making aileron corrections use Low-rate ai leron inside loops enabling use fairly large aileron stick corrections still result smooth airplane response Recovery loop achieved letting go elevator stick input just airplane passes through horizontal may little difficult judge first confidence maneuver developed gets easier easier takes care Inside Loops Fortunately lot what takes perform Inside Loops prop erly also works Reverse Outside Loops toughest parts Reverse Outside Loops whether youre doing three entry exit way both parts well leam proper technique practice Timing Important doesnt come easy fliers half-roll inverted flight should ini tiated early airplane should inverted second prior elevator push loop takes lot distance perform half-roll inverted flight fliers think airplane set up perform three rolls about five six seconds half-roll will consume about second means maneuver must initiated about two seconds before airplane passes front flier Since Pattem airplanes travel about 100 mph con verts about 300 feet travel during half roll inverted flight Start maneuver early Most airplanes require touch Down elevator following half-roll keep airplane level flight timing technique come Some fliers start put down just before half roll completed others walt until airplane inverted alrplane different needs different technique find out what works yours Reverse Outside Loops performed just like Inside Loops except Down elevator used insted Up elevator Rudder corrections tricky because everything seems backwards Fliers use kinds mental tricks figure out way push rudder control best Ive heard imagine youre hanging straps inside airplane what comes nat urally Dont surprised have lot trouble learning proper rudder input direction occasion some really good fliers have problems figunng out what use Aileron corrections usually fairly simple because airplane responds way expect toughest part Reverse Outside Loop exit Timing critical because just right amount Down elevator must released airplane passes through horizontal take air plane out loop level flight Most fliers either wait too long dont relese enough Down elevator airplane baboons wish dime time airplane ballooned exiting Three Outside Loops However easy wouldnt get much satisfaction learning properly After airplane has horizontal about second roll up upright flight Depending airplane small amount Down ele vator may released start roll dur ing roll just alrplane wings level again Thats Inside Loops Reverse Outside Loops really need both well technique practice hots practice keep telling fliers dont practice theyll get old wont get good Get good April 1983 123 November 1982 issue Sentral II
Edition: Model Aviation - 1983/04
Page Numbers: 34, 35, 36, 123
w. b author pull piano wire tubing alternately attached wing aileron Plane authors rtglnal-deeign high-performance 2-Meter Sailplane uses type hinge rudder ailerons speed brakes/flaps HERE IS inexpensive method easily making perfect hinges mov able control surfaces Originally developed high-performance RC Sailplanes hinging method can also used sizes power planes including Giant Scale piano-like hinges have already used rudders elevators flaps aileronsand flown speeds approaching 100 mph problem hinges produced metlod have following desirable characteristics 1 high degree freedom permits very large control surface movement 2 very free mov ing due low friction 3 perfect control surface alignment 4 precise no hinge slop 5 practically no gaps 6 control surface can removed seconds repairs adjust ments 7 wont loosen under vibration 8 withstands heavy loads 9 can used length control surfaces 10 made readily available lightweight inex pensive materials 11 very easy make Materials hinges made 1/16-in outside diameter aluminum tubing usually comes 12-in lengths Piano wire near-perfect fit inside tubing also standard hobby shop item wire usually comes 36-in lengths seemsas have piano hinges au thor provides new look excellent hinging method application high-performance RC Sailplanes though piano-type hinging ideal types models will also need thick gap-filling cya noacrylate adhesive such Super Jet Hot Stuff Super T Zap-A-Gap some masking similar flexible tape gap seals optional will need thin drafting Mylar sheet thin double-adhesive tape Tools 1/16-in drill bit 400-grit sand paper wire cutter razor saw small flat file something grind file end Method Construction Determine much control surface throw will require Shape leading edge control surface angle about two de 34 Model Aviation Pianos have beenpiano wire tools needed make hinges around forever vur auinor 2-Meter Sailplane shown other pictures too ciose fire Dave illustrations text explain step step make install hinges Illustrations Jim Newman ''I 31d32o - -A . \3Q0 0 -5%-i FIG 1 S 3/64 FIG 2 aluminum tubing grees greater example allow rudder move 300 shape its leading edge 310 320 slope See Fig 1 details Sand away enough leading edge produce flat will allow about 3/64-in gap See Fig 2 short piece aluminum tubing held angle run along flat scrapes rounded groove Take time Try careful keep groove straight center flat See Fig 3 Saw off -in 3/4-in piece tubing File off outside burrs Take 1/16-in drill hit slowly twist inside hole both ends tubing will enlarge taper entrances tubing piano wire can easily slip out will also remove inside burrs Gently roughen out side tub ing 400grit sandpaper L tape VA%7 glue j~v music 7TTue wire control surfaceFIG 7 April 1983 35 iL 1/16 drill C BEFOREAFTER hibThg FIG 4 control surface~ glue 1A 99FIG 5 1/4 II Imw1 control surface FIG 6 tape FIG 10 maximum deflection % ~ K double sided tape mylar note direction curve FIG 11 careful aluminum tubing bends very easily should kept straight possible See Fig 4 Carefully adhere short piece tubing end control surface careful get adhesive inside tubing See Fig 5 Cut piano wire lengthabout /4-in longer full length con trol surface File grind end point Make 900 bend about -in other end See Fig 6 Cut off another piece tubing about same length Treat both ends drill bit before Roughen outside 400-grit sandpaper Starting end control surface insert pointed end wire tubing already adhered con trol surface Now slip loose short piece tubing over wire Slide along * 0 wire until just about touches adhered piece tubing Carefully place control surface posi tion wing other fixed surface exact place want ad hered tubing should just about touch planes surface Use tape hold control surface place See Fig 7 Attach second piece tubing plane control surface placing single drop cyanoacrylate fixed surface center tubing Make sure control surface still aligned After drop adhesive has set remove wire control surface Carefully run bead adhesive along full length both sides second piece tubing let get inside tubing Allow set Keep repeating process thereby building hinge along entire length control surface Make sure alternate adhering tubing fixed surface control surface Keep control surface alignment dont allow wan der out position direction Check free movement let go control surface should easily fall its own weight doesnt check burrs kinks tubing wire Also ensure no two pieces tubing butted against another tightly scrape control surface moves Sand off excess adhesive lumps next steps occur after completion plane surfaces covered use Super MonoKote Important note gap between control surface fixed surface less thickness covering material before covering carefully Continued page 123 0 Sailplane brake/flap deployed left closed above apparent hinging method allows precise movement sur faces perfect alignmentimportant plus factors 36 Model Aviation covering 11Jj%jI sand away clear covering FIG 8 o coveringFIG 9 transmitters pulse-timing 15 ins s less industry standard should able plug servo youve got set assuming have right plug first-look standpoint system looks like exceptionally good value money great way sample new RC channels five years hard work members AMA Frequency Committee have provided Kudos Tower Hobbies having guts ready Day George M Myers 70 Froehlich Farm Rd Hicksvjlle NY 11801 Hinges/Peltz Continued page 36 sand away just enough surface between piece tubing allow piece covering material slide through easily See Fig 8 covering plane control sur faces run covering material around piece tubing completely enclose will hide its aluminum color will also serve strengthen hinge con siderably See Fig 9 make optional gap seals suggested high-movement surfaces large bevel angles follow steps Cut piece drafting Mylar use acetate will buckle changing hu midity temperature exact length control surface twice de sired width strip width deter mined moving control surface its maximum throw adding one-half width double sticky tape plus another /8-in See Fig 10 Mark center Mylar strip lay down double-sided tape along center full length strip came roll Mylar should have natural curve adhere tape convex side will press against control surface See Fig 11 Cut strip half along full length tape now exact edge what will front gap seal Starting end carefully lay down Mylar strip attached fixed surface control surface will act gap seal now have perfect control sur face hinges could hope Workshop/Kruse Continued oaae 40 us keep overall impression shop its neat well-organized appearance would make vety comfortable re laxed place spend time Through very small outlay money combined genuity planning Harold Rouse has made hobby integral part life style workshop showplace home RC Aerobatics/Van Putte Continued page 43 making aileron corrections use Low-rate ai leron inside loops enabling use fairly large aileron stick corrections still result smooth airplane response Recovery loop achieved letting go elevator stick input just airplane passes through horizontal may little difficult judge first confidence maneuver developed gets easier easier takes care Inside Loops Fortunately lot what takes perform Inside Loops prop erly also works Reverse Outside Loops toughest parts Reverse Outside Loops whether youre doing three entry exit way both parts well leam proper technique practice Timing Important doesnt come easy fliers half-roll inverted flight should ini tiated early airplane should inverted second prior elevator push loop takes lot distance perform half-roll inverted flight fliers think airplane set up perform three rolls about five six seconds half-roll will consume about second means maneuver must initiated about two seconds before airplane passes front flier Since Pattem airplanes travel about 100 mph con verts about 300 feet travel during half roll inverted flight Start maneuver early Most airplanes require touch Down elevator following half-roll keep airplane level flight timing technique come Some fliers start put down just before half roll completed others walt until airplane inverted alrplane different needs different technique find out what works yours Reverse Outside Loops performed just like Inside Loops except Down elevator used insted Up elevator Rudder corrections tricky because everything seems backwards Fliers use kinds mental tricks figure out way push rudder control best Ive heard imagine youre hanging straps inside airplane what comes nat urally Dont surprised have lot trouble learning proper rudder input direction occasion some really good fliers have problems figunng out what use Aileron corrections usually fairly simple because airplane responds way expect toughest part Reverse Outside Loop exit Timing critical because just right amount Down elevator must released airplane passes through horizontal take air plane out loop level flight Most fliers either wait too long dont relese enough Down elevator airplane baboons wish dime time airplane ballooned exiting Three Outside Loops However easy wouldnt get much satisfaction learning properly After airplane has horizontal about second roll up upright flight Depending airplane small amount Down ele vator may released start roll dur ing roll just alrplane wings level again Thats Inside Loops Reverse Outside Loops really need both well technique practice hots practice keep telling fliers dont practice theyll get old wont get good Get good April 1983 123 November 1982 issue Sentral II