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Author: Whaddaya, Stunad?   Date: 5/18/2025 1:28:11 PM  +4/-1   Show Orig. Msg (this window) Or  In New Window

This is a compass!   Direction is displayed with a vertical compass card!


From the Pilot Handbook of Aeronautical Knowledge

[IOWs, fundamental flying stuff]


https://www.faa.gov/sites/faa.gov/files/10_phak_ch8.pdf

As instrument panels become more crowded and the pilot’s
available scan time is reduced by a heavier flight deck
workload, instrument manufacturers have worked toward
combining instruments. One good example of this is the
RMI in Figure 8-30. The compass card is driven by signals
from the flux valve, and the two pointers are driven by an
automatic direction finder (ADF) and a very high frequency
(VHF) omni-directional radio range (VOR).





Figure 8-30. Driven by signals from a flux valve, the compass card
in this RMI indicates the heading of the aircraft opposite the upper
center index mark. The green pointer is driven by the ADF


Page 8-22
 
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Vertical card compass +1/-2 Hold my beer 5/17/2025 3:09:58 PM