Using Your D3
D3 Pilot’s Guide 4-3
On-Screen Elements
The D3 is primarily a portable backup attitude indicator but also has a variety of other useful
information to improve situational awareness.
Aircraft Attitude is determined by combining information from internal solid-state rotation rate
sensors (gyros) and accelerometers. GPS-based ground speed is additionally used to ensure the
quality of the displayed attitude
indication. Like a mechanical
attitude indicator, the artificial
horizon depicted on the D3
screen displays both the pitch
and roll of the aircraft. The D3’s
attitude depiction is not GPS-
based, but a GPS fix is required
for the attitude to work
properly.
Figure 3 - Full D3 Display with Attitude
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