The requirement to protect the armoured units through the enemy aviation, pressed the English army to build up this self-propeller equipped with a Bofors 40 mm cannon, utilising the hulls of the Crusader armoured tank, considered out-dated at the conclusion of 1943. The cannon ended up being put into a tower with armoured plating capable guarantee the necessary protection to the gunners. The Crusader AA had been distributed towards air detachments for the protection associated with control units at the end of 1943. Some detachments had been used throughout the French intrusion following the landing in Normandy, but due to the atmosphere superiority for the allies, the German atmosphere threats proved inexistent, which means use of this self-propeller anti-aircraft was not a lot of or even null.
