Abstract: In a fire control system for a vehicle or vessel a data processor (21) connected to the target tracking unit (7) determines, in a first coordinate system coupled to said unit (7), angular error data about a target position for aligning the tracking unit (7) with the target position.A fire control computer (22) is incorporated for:a. determining matrix (H) elements concerning the transformation from the first coordinate system to a second fixed horizontal coordinate system, using data about relative angular positions between the tracking unit (7), the vehicle or vessel and a turret mounted thereon, and using data from reference orientation means (18, 19, 20) about the angular positions in said second coordinate system;b. converting the angular error data into target positions in said second coordinate system;c. changing said target positions to gun aiming data; andd. transforming the latter data to a third coordinate system coupled to the vehicle or vessel.

Abstract: Integrated weapon control system including target search and tracking means, whereby the turret is rotatable about an axis perpendicular to a first reference plane and whereby the gun is slewable about an axis parallel to this first reference plane. The target search means are fitted triaxially on the turret and stabilized biaxially with respect to a second reference plane, wherewith the target tracking means are mounted multi-axially on the gun.