TM 11-6605-202-12/TO 5N3-3-1O-1
BASIC FUNCTIONS (continued)
BLOCK DIAGRAM 1
Block diagram 1 uses course indicator 1, the ECA, and the MAG-DG switch as additional equipment with
the compass set. The mode of operation is selected by setting the MAG-DG switch to the desired posi-
tion. In the MAG mode, the gyro is slaved to the fluxgate. The heading indicated will be referenced to
Magnetic North, stabilized by the gyro. In the DG mode, the gyro functions as a latitude-corrected free
gyro. The heading indicated will be referenced to True North. In either mode of operation, an additional
synchro output is available to provide a stabilized reference signal to an Automatic Flight Control System
(AFCS).
2-2
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