TM 55-1520-240-23-9
11-268
ADVANCED FLIGHT CONTROL SYSTEM
(Continued)
11-268
Proximity Switches
A switch on each aft landing gear energizes a relay
whenever the helicopter is on the ground. This signals
the AFCS computers to reduce input to the pitch ILCA by
50 percent and disable longitudinal input to the DASH
actuator. The switches also drive the LCT actuators at
the rotor heads to a ground position.
NO BREAK - WORK HARDER
The left landing gear switch controls the No. 1 sections
of the pitch ILCA and DASH actuator. The right landing
gear switch controls the No. 2 sections. The forward and
aft LCT actuators are each controlled by both switches.
END OF TASK
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