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----- HISTORICAL RECORD -----

HOFIN

Country of Origin: Britain

description

The HOFIN (Hostile Fire Indicator) was a passive warning system designed for helicopters. The system was responsive to supersonic projectiles.

HOFIN consisted of three units -- the sensor array, the computer unit and the indicator unit.

The sensor array was mounted on the underside of the helicopter. Four sensor "arms" connected in the center at 90-degree intervals made up the array, with an additional central arm perpendicular to the others.

The array detected the...

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