 Complete the following phrase:  One a href526quot3B3820caliber20gun38a caliber dual-purpose gun was mounted on the stern. Anti-aircraft defense was provided by eight Bofors anti-aircraft guns in single mounts, as well as 12 Oerlikon cannons, which were mounted around the perimeter of the deck. Casablanca-class escort carriers were designed to carry 27 aircraft, but the hangar deck could accommodate more. For example, during her only combat deployment, 