On 3 January 1944, "Ranger" became a training carrier out of Quonset Point, Rhode Island. This duty was interrupted on 20 April when she steamed to Staten Island, New York, to take on 76 Lockheed P-38 Lightning fighters—together with Army, Navy, and French Navy personnel—for transportation to Casablanca. Steaming out on 24 April for her fifth and final transatlantic ferry mission, she arrived at Casablanca on 4 May. The new aircraft were exchanged with damaged U.S. Army aircraft marked for repair in the U.S., while military passengers were embarked for the return to New York City. After New York City, she moved to Norfolk for refit on 19 May 1944.