Assembly Instructions for a Trex 450

Push the flybar through the flybar plate on the pre-assembled main rotor housing. Make sure the bar is evenly spaced through the rotor.

Slide the metal control arms onto the ends of the flybar, and push them down to about 1/4-inch away from the rotor housing.

Attach the B-length linkage rods to the control rods. Screw the control rods onto the control arms.

Attach the flybar weights to the ends of the flybar, then screw the paddles onto the ends of the flybar.

Insert the rotors into the housings, and screw them into place.

Attach the linkage rods to the linkage balls on the helicopter. A-length linkage bars connect the seesaw to the top rotor. Connect the loose B-length rods to the washout plate. Join the washout plate and swashplate with D-length rods.

Screw the lower half of the body to the upper half of the body. Both of these pieces are pre-assembled by the Align Corp. Use aluminum links to attach the pieces together.

Screw the canopy bolts and the anti-rotation bracket onto the back of the model. Screw the servos onto the sides of the helicopter as well.

Mount the motor through the bottom of the helicopter base.

Attach the rotor ring to the back of the main rotor gear. Install the one-way bearing and one-way shaft into the gear, and then attach the tail drive gear to the front of the gear.

Insert the helicopter gear into the body of the helicopter so that it meshes with the motor gear.

Build the skids, using the landing skids, skid pipes, end caps and the antenna. Attach this to the bottom of your helicopter.

Assemble the tail rotor by screwing the rotor blades into the pre-assembled tail housing.

Screw the tail rotor arm onto the ball link unit. Attach this unit to the tail boom, and then attach the tail rotor to the device.

Screw the two tail stabilizers onto the tail boom. There is a vertical one at the very end of the tail, and a horizontal one about halfway down.

Attach the servo mounting brackets and the tail servo to the tail of the helicopter. Use the tail linkage rod to join the tail servo to the tail fin.

Attach the tail boom braces to the bottom of the tail, and join them to the helicopter base.

Mesh the tail belt onto the tail gear.

Install the battery pack on the front, and the receiver on the receiver plate. Screw the canopy into place on the front.