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How to Build an Ultrafly PC-9

The Ultrafly PC-9 radio controlled aircraft is a kit model that includes all needed parts to go from assembly to flight. The Ultrafly is a smaller RC aircraft and uses a Falcon 400 motor with a gear ratio of 3:1. The ratio gives the aircraft the power to go into aerobatic moves like rolls, spins and loops. Because of the slender fuselage on the PC-9, high winds are not as much of an issue for flight as other, larger sized RC aircraft.

Instructions

- 1
  Push the two side pieces together, snapping the interlocking grooves to assemble the PC-9 fuselage. Glue the fuselage nut to the plastic base part. Glue the plastic plate to the side slope on the rear of the fuselage using the kit's foam glue.
- 2
  Cut out the wings from the sheet in the kit. Follow the cut lines and do not create larger cuts. Take the ailerons out of the kit sheet and snap off the aileron hinges from the wire sheet. Slide the hinges into the rubber aileron gaskets, then slide the ailerons at the connection points nearest the wings and slide the opposite side of the hinge into the wing slits. Connect the aileron controls into the PC-9 servos. The servo has a female plug and the aileron connections a male. Snap them together.
- 3
  Run the aileron linkage wires down the sides of the wings on the PC-9 and then run it into the servo plugs which control the aileron hinges. Add a drop of glue to each connection point on the hinges and ailerons.
- 4
  Tape the servo into the center servo channel in the middle of the wing. Glue the wing connector at the fuselage to connect wing to main airplane.
- 5
  Cut out the rudder, empennage and canard from the kit sheet and assemble the tail piece with the rudder lateral to the canard (the long tail piece) and the empennage tail going upwards.
- 6
  Apply a drop of foam glue to each connecting pin along the interior edge of the rudder and canard and then glue them together.
- 7
  Add glue to the empennage assembly and the tail end of the fuselage and push them together.
- 8
  Push the empennage horn down under the fuselage and into the airplane. Lock them together using a push rod. Take the other push rod and push it toward the nose of the aircraft through the fuselage cockpit.
- 9
  Place the elevator servo into the channel under the fuselage near the empennage. Plug the male to female ends together to connect the elevator and rudder wires to the servo.
- 10
  Glue the cockpit piece into the fuselage cockpit position, covering the push rod and wires. Glue the cockpit canopy over the cockpit.
- 11
  Place the nose cone down and insert the propeller into the tip using the propeller adapter, M5 nut and the 12x5 washer stack. Push the blade over the nose and tighten it into place using the nut on the stack.
- 12
  Slide the engine into the fuselage nose, with the drive-shaft sticking out toward the nose-cone. Run the wires on the engine into the servos. Push the nose-cone into the drive-shaft, connecting the propeller adapter to the drive-shaft.
- 13
  Apply glue to the outside edge of the cowling to set it into the fuselage and then slide the entire nose-cone assembly over the cowling.
- 14
  Turn on the servos and transmitter and test the controls. Make sure the elevators, ailerons and canard move and then turn on the engine to test the propeller.

Aviation