The 33 FW is an AETC training unit. Its main mission is to train U.S. Air Force, U.S. Marine Corps, and U.S. Navy pilots and maintainers on the F-35 Lightning II. The wing will reach full strength in 2014, with more than 2,000 military personnel and 260 contractors. Annual capacity is planned for 2,150 pilot and maintenance students. A minimum of 59 F-35A, F-35B, and F-35C aircraft supporting Air Force training in the F-35A, Marine training in the F-35B, and Navy and Marine training in the F-35C, as well as international partner training in the various versions of the aircraft.