Honeywell Bendix/King KFD 840 Primary Flight Display
KFD 840 PG PN 7450-0840-01 Airspeed Area
Rev C May 28, 2010 4-3
© Honeywell International Inc. Do not copy without express permission of Honeywell
If airspeed data is invalid, the airspeed tape is
removed and replaced with a red X. If invalid,
the airspeed rolling digits display is removed.
Loss of air data will also cause the loss of
TAS (true airspeed), standard rate of turn
indicator, and winds (if installed).
AIRSPEED TREND VECTOR
Airspeed trend is represented by a white
vertical bar positioned along the right side of
the airspeed tape depicting the airspeed in 6
seconds if the current
acceleration/deceleration trend continues.
The airspeed trend vector expands upward
for positive acceleration values and
downward for negative acceleration values.
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