Beechcraft D18 1.5m Manual

PNP Receiver Selection and Installation

AR631 Port

Assignments

BND/PRG = SRXL2

1 = Throttle

2 = Aileron

3 = Elevator

4 = Rudder

5 = GEAR/LEDs

6 = Flaps

The recommended receiver for this aircraft is the Spektrum AR631. If you choose to

install a different receiver, ensure that it is at least a 6-channel full range receiver.

Refer to the manual of your chosen receiver for correct installation and operation

instructions.

AR631 Installation

1. Push the button behind the hatch to release the hatch.

2. Remove the hatch by pulling up on the back of the hatch to expose the receiver

compartment.

3. Connect the control surface servos to the their respective ports on the receiver

using the table at the right.

4. Using double-sided servo tape (not included) mount the receiver to the ﬂat area

of the receiver compartment, as shown. The receiver (A) should be mounted

in the orientation shown, parallel to the length of the fuselage, with the label

facing up and the servo ports facing the rear of the aircraft. The orientation of

the receiver is critical for all AS3X

and SAFE

technology setups.

5. For single antenna receivers, route the antenna on the left side of the fuselage

tube marked “Insert Antenna Here”. For dual antenna receivers route the left

antenna to the left side tube and the right antenna to the right side tube.

CAUTION: Incorrect installation of the receiver could cause a crash.

Differential Thrust

The Beechcraft D18 is equipped with differential thrust. When the rudder is applied

one motor will increase speed and the other will decrease speed to assist with yaw

control. This assists in ground handling, takeoff and landing.

For maximum control during takeoff and landing we recommend increasing the

throttle trim until the motors just start spinning. Then reduce the trim until the

motors stop. It is about 3-5 trim clicks. With the trim set in this position the rudder

will allow one motor to spin to maintain directional control even with the throttle at

idle.

With the trim set in this position we recommend you activate throttle cut if you

pick up or move the aircraft. If the aircraft is picked up and yawed without the

trim lowered or throttle cut activated, a motor may start spinning. Make sure

everything is clear of the propellers when handling the aircraft.