Owner manual

Mounting and Connection

A1 Before you Begin

Fly the helicopter without WKH in open are or large field and make sure that the helicopter works properly without any autopilot

assistance. To do so, you will need external tail gyro. This is a good time to isolate and resolve unwanted vibrations. IT IS IMPORTANT

THAT YOU SHOULD NOT SKIP THIS STEP.

A2 Mount the devices on your helicopter

IMU

 Where? The IMU is best positioned near the helicopter’s center of gravity, where

vibration is relatively low.

 What orientation? Orient the IMU such that the arrow marked on the above

surface of the IMU faces the sky and points directly forward, backward, left or

right. The sides of the IMU should be precisely parallel to the helicopter body.

DO NOT MOUNT THE IMU UPSIDE-DOWN.

 How? Use double-sided foam tape for secured installation.

Check the double-sided foam tape or Velcro regularly to ensure that the

IMU is securely positioned.

DO NOT cover the ventilation holes, keep them unobstructed.

The IMU module is NOT water-proof or oil-proof.

GPS & Compass Module

Lite WKH Lite customers can skip this step.

 Where? Mount it on the tail boom, between the

rotor-head and the tail-rotor. The compass is

sensitive to magnetic interference, so position the

module at least 20 cm from servos and 30 cm from

electric motors or gasoline (petrol) engines. The

GPS is sensitive to vibration interference, so position

the module at least 10 cm from the tail rotor. The

GPS should not be close to the main rotor head

because rotor blades can interfere with GPS satellite

signal, the farther from the center of the rotor disk,

the better. For scale helicopters we find either behind

or in front of main shaft GPS positions can be

applied. It can also be installed inside the fuselage

where the fiber glass shell is relatively thin.

 What Orientation? The DJI logo marked on the

GPS should face the sky, with the orientation arrow

pointing directly forward. The GPS/Compass is

packaged with a special indication line for mounting

for the first time.

If you are uncertain whether materials near the GPS/Compass module are magnetic or not, you can use a compass or

magnet to check it.

GPS/Compass mounting-support hardware is included in the package. If however you prefer to use your own

GPS/Compass mount, please make sure that the mount material is NOT magnetic.

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