Because of this, the Skyshark manner according to the rules set forth by the Academy of Edge 540 is one of the lightest and best flying airplanes in Model Aeronautics. The builder assumes the responsibility this size range.
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We do recommend using dual rates on the ailerons, rudder and elevators. The Skyshark Edge 540 is a very easy plane to handle on the ground and in the air. On low rates it flies similar to a low wing trainer.
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Note: All control surfaces are pre-hinged, however, the hinges are not glued in place. All hinges should be glued in place using high quality thin CA. 7. Locate the plywood wing joiner and mark a line down the center of the joiner. 1.
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11. Apply 30 min epoxy to both wing root ribs, the other side of the wing joiner and remaining joiner cavity. 15. Using a hobby knife, remove the covering about 1/8” on the inboard side of the line you marked in the previous step. Be careful not to cut the sheeting.
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Before connecting servos and linkages, it’s a good idea to make sure the servos are properly centered. 19. Locate 2 servos and connect a 12” extension to each one. You can use electrical tape to secure the connection. 25. Locate a 2-56 pushrod and cut it in half. Connect a clevis and control horn on one end of one pushrod.
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29. Install the control horn with the include screws and plastic back- 34. Remove the wing from the fuselage. Thread two wing mounting plate. Tighten until the control horn is snug on the aileron without bolts into the blind nuts in the wing rear mounting plate from the bot- crushing the wood.
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39. Bolt the wing to the fuselage and double check for proper align- ment. 43. Once the horizontal stab is aligned mark a line on each side of the stab where it meets the fuselage on both top and bottom. 40.
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47. Using a hobby knife carefully cut and remove the covering about 1/8” below the line that was drawn in the previous step. Be careful not to cut into the wood on the stab. Leave the covering on the trail- ing edge of the vertical stab in place.
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55. Align the elevator half with the horizontal stab and insert the 61. Hold the tailwheel assembly up to the aft fuselage and mark the hinges into place. location of the plastic slot. The round “lip” should sit below the fuse- lage.
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65. Drill a 7/64” hole in the leading edge of the rudder at the location 74. Measure 1-1/4” from the bottom of the rudder at the hinge line. marked in the previous step. Mark this location, it will serve as the center point for the rudder con- trol arm.
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85. Drill a 5/32” hole in each of the wheel pants at the marked loca- tion. 80. Install a washer on the threaded bolt and insert the bolt in a wheel. Install another washer and nut onto the bolt as shown. 81.
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89. Locate the square ply piece and use 5 min epoxy to glue it to the inside of the wheel pant about 1/4” above the hole on the groved side of the wheel pant. This piece will be the reinforcing plate for the wood screw that fits into the upper hole in the landing gear.
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98. Make a 60 - 90 degree bend in one of the brass tubes as shown. Be careful not to kink the tube. You can insert a small pushrod into the brass tube to help bend it without kinking. 104. Locate the engine mounting hardware. 99.
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113. Remove the engine from the mounts and align the cowl on the fuselage so the front of the cowl sits 4-7/8” from the firewall. 107. Align the engine on the mounts so the drive washer is 5” from the firewall. 114.
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121. Make a mark 1” from the end of each side on both wood dow- els. 118. The cowl will be secure by 2 button head screws on each side. The screws should anchor into the ply plates that extend on each side of the firewall.
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128. Cut a short piece of heat shrink tubing and slide it over the dowel/pushrod. Use a match or torch to carefully shrink the tubing. This assembly will be your elevator pushrod. 133. Locate the upper elevator pushrod slots in the rear of the fuse- lage on both sides and remove the covering.
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142. Wrap the fuel tank in foam where it will contact the fuselage for- mers. This will help eliminate fuel foaming. 137. Center the elevator and rudder servos and position the servo arms so they are 90 degrees to the pushrod. Make a mark on the pushrods where they intersect the servo arm and make a Z-bend on those marks.
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145. Locate the instrument panel assembly pieces. 150. Using a hobby knife, make some small cuts in the paper back- ing where the gauges are not located. This will give you a solid glu- ing surface when attaching to the model. 146.
155. Glue the canopy in place using RC-56 or Epoxy. You can use 159. Set the center of gravity but turning the plane upside down and masking tape to secure the canopy in place. using your fingertips or a plane balancer to balance the plane 2-5/8” - 2-7/8”...
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