TM 11-5860-200-12
Section III. TECHNICAL PRINCIPLES OF OPERATION
1-12. Operating Principles
The ALT is designed to reduce the time needed by helicopter crews to sight, aim and fire air-to-ground weapons. The
ALT relies upon a target spotter (a soldier on the battlefield itself or in another helicopter) who, equipped with a laser
designator, can train a coded laser beam on the target. The ALT on board the attack helicopter uses a receiver that can
detect low level energy reflecting from the laser spot. The ALT scans the terrain, finds and tracks the target. and its
output can be used to aim the helicopter's optical sight (telescopic sight unit).
Figure 1-4. ALT Operating Principle.
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