Section 3 Display Symbology
3-24
IDU-450 EFIS Software Version 8.0H (Rotorcraft)
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st
Ed Nov 2018
Figure 3-43: PFD with GPS Failure after 1 Minute
3.3.15. Hover Vector
The FPM is removed at low speed, <30 knots groundspeed, and is replaced
with hover vector symbology. The hover vector indicates direction and
groundspeed of drift at low groundspeeds (when lower than 30 kts)
consisting of large aircraft symbol reference marks, an inner concentric ring
indicating 10 knots groundspeed, an outer concentric ring indicating 20
knots groundspeed, and a vertical and horizontal dashed line passing
through the center extending to the outer ring. The white dot of the large
aircraft symbol reference marks indicates 0 knots groundspeed and is the
center for the concentric rings. A gray dot equal in size to the white dot and
connected to the white dot by a white line floats over the concentric ring
area to indicate direction and magnitude of drift in a gods-eye view.
AGL Indicator (Normal)
AGL Indicator (Analog)
Figure 3-44: PFD Hover Vector Symbology