FeiYu Tech FY-91Q - Manual (Page 20)

GuiLin FeiYu Electronic Technology Co., Ltd
GuiLin FeiYu Electronic Technology Co., Ltd www.feiyudz.cn E-mail: [email protected]
Page 19
12 o’clock. Anything less than that may result in no flight stability for this first
flight.
6. Tie down test: Before proceeding, we highly advise that you tie down the
aircraft to the ground to prevent any possibility it going out of control during
this initial flight tests. Safety first.
7. First test lift off: Advance your throttle stick, but do not take off (usually around
30% throttle). Let the aircraft float just enough so that you can see the aircraft
reaction as you move your Aileron, Elevator and Rudder sticks.
8. If the control movement is reversed, just reverse the channel on your RC
transmitter.
9. After step 8, you can take off higher. If the aircraft hovers well, you can proceed
to remove the aircraft from the tie down test.
10. Observe the flight for stability and oscillations as the aircraft hovers higher.
11. If you feel there is not enough stability (e.g. excessive drifting), you can increase
the sensitivity of the three dials.
12. If there are rapid oscillations, reduce the corresponding sensitivity knob.
13. More fine tuning adjustment can be done via the FeiYu software (you will need
the TTL-USB cable for this).
Pre-flight Debugging
If your aircraft fails to lift off and hover for the initial pre-fight tests, please
check the following:
a) Check the ESC connections are all correctly plugged in. Take time to check
and re-check that each ESC has been plugged in and that the plugs are
correctly placed.
b) Please ensure there is no short circuit of the power (positive) and GND
wires. Short circuits can damage the internal processor chip beyond repair
(voiding all warranty).
c) Check that all motors are rotating in the direction noted in this manual.