6-2 D3 Pilot’s Guide
straight and level flight, the HORIZON RECOVERING message will automatically disappear when
the D3 is confident that it is showing the correct attitude.
Figure 16 - Horizon Recovering After Rate Limit Exceeded
AEROBATICS AND NON-STANDARD MANEUVERS
The D3’s attitude sensing algorithm is based on fixed wing aircraft flight dynamics. Using the D3
during aerobatics or other maneuvers that are not encountered during normal fixed wing aircraft
flight may cause the D3’s attitude indicator to lag the actual horizon or be otherwise incorrect.
This will especially be true if the maneuvers being performed exceed 150 degrees per second as
described above. However, once straight and level flight is resumed for a short period, the D3 will
automatically recover and display the correct attitude. Additionally, no aerobatic flight maneuver
will cause any permanent damage to the D3’s attitude sensing ability.
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