Not only the aiming system needs to be thoroughly aligned to the weapon. Both their movements during the aiming process must be as well. If not done so the ballistic calculation used to make a weapon effective on long ranges becomes useless. The synchronous operation test devices from Airbus DS Optronics measure both the elevation of weapon barrel and targeting system, providing the ability to check, to adjust and to hit. Designed for the gunner sight of the Leopard 1 MBT.