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Round Dials
RD-6
IDU-450 EFIS Software Version 8.0H (Rotorcraft)
1
st
Ed Nov 2018
VSI bug set to +1,000 fpm
with HeliSAS enabled
VSI bug set to +1,000 fpm without
autopilot enabled.
Figure RD-13: VSI Bugs
The vertical speed bug is mutually exclusive with the IAS bug and can be
used either as a visual reference or when vertically integrated with the
HeliSAS-E or other autopilot as a control parameter for climbs or descents.
When vertically integrated, the vertical speed bug is filled-white when in
VSI climb or descent mode. Otherwise, the vertical speed bug is hollow-
white as shown above on the left. When not vertically integrated with an
autopilot, the vertical bug is filled-white at all times.
RD 6. Heading Display
The heading display appears in a blacked-out area on the bottom to
emulate a “Basic-T.”
Figure RD-14: Heading Display