9
!
Assemble the two fan mounts. Glue with thin CA.
!
Install the battery you intend to use centered in the battery holder.
!
Place one fan mount on the top of the fan and one on the bottom. Slide the fan between the two
carbon rods and slide it forwards and back until the plane balances at the correct CG which is 3 ¼”
from the trailing edge of the wing, not including the ailerons.
!
Once the fan is positioned properly, wrap some tape around the entire fan assembly to tape the fan
in place. I use ½” clear tape.
!
Ducted fans work better if you add ducting. You can make extenders with Styrofoam coffee cups,
etc but I have not tried this myself.
!
Install receiver and speed control. The receiver is velcroed to the side of the fuselage and the
speed controller is light enough to be suspended by its wires. Wire the speed control and servos to
the receiver.
!
Adjust your throws so that the elevator has a total movement of ½” measured from the rear next to
the vertical stabilizer and the ailerons have a total throw of ½”.
Flying
Before you fly the ParkJet, check that the control surfaces move the correct directions. Always check the
directions while you are behind the airplane. I highly recommend that you check the control surfaces
before EVERY takeoff.
The center of gravity (CG) is 3 ¼” from the trailing edge of the wing, not including the ailerons. With the
battery installed, place a finger on each side of the fuselage just at the rear of the spar by the middle rib
(the middle of each wing) and lift the ParkJet. It should balance there. If not, adjust the battery forward
or backwards till the CG is correct.
For your first flight, be patient and wait for a calm day. Choose a large field where you have a smooth
area to land. You will need to throw the ParkJet fairly hard to get it to flying speeds.
