Pilot Communications Predator Sport Jet 90” User Manual page 10

After installation
Install the nose retract gear to the
fuselage.
Carefully arrange the nose gear retract
wire lead and the steering wire as well ...
Thanks to the "Test" function of the Pilot- Thanks to the "Test" function of the Pilot-
Rc controller unit, you can test the
correct and free working of the system
without the need for your transmitter or
receiver, just connect a battery direct to
the controller.