Typically, positions on the ship measured range and bearing of the target these instantaneous measurements are used to calculate rate of change values, and the computer ('fire control table' in Royal Navy terms) then predicts the correct firing solution, taking into account other parameters, such as wind direction, air temperature, and ballistic factors for the guns. Naval warships World War II–era Mark 37 Director for 5 in/38 caliber dual purpose guns above bridge of destroyer USS Cassin Young, backfitted with postwar AN/SPG-25 radar antennaįor warships of the 20th century, the director is part of the fire control system it passes information to the computer that calculates range and elevation for the guns.

Computer that calculates aiming for weapons M7 gun director 1944Ī director, also called an auxiliary predictor, is a mechanical or electronic computer that continuously calculates trigonometric firing solutions for use against a moving target, and transmits targeting data to direct the weapon firing crew.

World of warships anti aircraft aiming