Abstract: A system for target designation by laser comprises circuitry for precise alignment of the aircraft and pod lines of sight. The alignment circuitry operates digitally in a computer in which the director cosine data of the aircraft and pod lines of sight are compared to provide error signals fed to corresponding servo-controls. Alignment is obtained by the introduction of corrective data utilized for producing vector rotations, the corrective data being produced by means of a manually controlled stick device, integration circuits and a non-volatile memory.