Powering On; Compass Check And Calibration - Impossible US-1 Operating Handbook

6.5 Powering On

1. To power on US-1, press and hold the black power button.
2. To power on the handset, slide the switch on the bottom right
of the handset to the 'ON' position.
3. Ensure the tablet is powered on and the USB cable is con-
nected to the handset, and launch the IAGS application.
4. Within IAGS, check for connection to the aircraft.
5. When connection is verified, verify the state of charge of the
Aircraft, Handset, and Tablet are sufficient for the intended
mission. For more on Aircraft Battery Management, see sec-
tion 7.7.
6. Toggle each switch on the handset and check for the expected
behaviors.For more on handset functions, refer to sections 7.3
and 7.5.
7. Verify that camera settings are sufficient for the intended mis-
sion. For more on camera settings , refer to section 3.3.1.
8. Wait for US-1's GPS to connect; this will be indicated when
Position mode becomes available.

6.6 Compass Check and Calibration

The US-1 uses an internal compass as a stabilization reference. If
the aircraft has moved more than 50 miles since the compass was
last calibrated or is operating in an environment with high magnetic
noise, the compass may require recalibration. To check if the com-
pass is calibrated, point the front of the aircraft towards geographic
north and verify the aircraft's heading in IAGS. Next, rotate the air-
craft 90 degrees to point to the east or west and verify the aircraft's
heading again. If either heading is changing or varies by more than
12 degrees in 30 seconds, the compass requires re-calibration.
Impossible Aerospace recommends calibrating the aircraft with
the propellers folded and secured by rubber bands.
To calibrate the compass:
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