3D Robotics X8-M - Manual (Page 26)

25
Pre-flight Checks
Visual Check
Before flying, examine the X8 to verify the following:
» All propellers are tightly attached in the correct order with the writing
on each propeller facing the sky.
» All propellers can spin without obstruction.
» The antenna is oriented vertically.
Test Flight
Before flying the mission, fly a brief test flight to verify that the X8:
» Responds to controls correctly in stabilize mode.
» Holds position in loiter mode.
» Correctly executes a return-to-launch command.
LED Indicators
Low battery, automatic landing
Loss of RC signal, automatic landing
System error, see troubleshooting guide
Loss of GPS signal, automatic landing
Initializing, please wait
Acquiring GPS, please wait
Armed
Tones
Visit 3DR.com/X8-M to listen to Pixhawk’s status tones.
GPS Lock
Auto, RTL, and loiter modes requires GPS lock. When powered,
the autopilot will automatically search for GPS lock. If you plan to
use auto, RTL, or loiter modes during your flight, ensure that the
autopilot acquires GPS lock before takeoff, indicated by a blinking
green status LED.
Autopilot ready, GPS locked