Tom-Tom aircraft (the B-29 and the two jet fighters) and their crews were lost in a crash on April 24, 1953. RB-29J (RB-29, FB-29J, F-13, F-13A) Section source: see Baugher Early B-29/B-29As that were modified for photo reconnaissance carried the F-13/F-13A designations, with "F" meaning 'photo'. The aircraft (118 modified B-29BWs and B-29As) carried three K-17B, two K-22 and one K-18 cameras. Between the end of World War II (1945) and 1948 the designation was changed to FB-29J. In 1948, the F-13/FB-29s were redesignated RB-29 and RB-29A. Six B-29A/F-13As were modified with the Wright R-3350-CA-2 fuel injected engines and designated at YB-29Js. These were then converted to RB-29Js. In January 1949, RB-29s were assigned to the 91st Strategic Reconnaissance Wing and moved to Yokota AB, Japan in December 1950; to provide support to the Korean War and attached to the 15th Air Force, Far East Air Force. SB-29 Section source:Birdsall The SB-29 'Super Dumbo' was a version of the B-29 adapted for air-sea rescue duty after World War II. Sixteen B-29s were modified to carry a droppable A-3 lifeboat under the fuselage; redesignated SB-29, they were used mainly as rescue support for air units that flew long distances over water. The first SB-29s were received by the Air Rescue Service in February 1947. With the exception of the forward lower gun turret, all defensive armament was retained; the aircraft additionally carried a variety of radio equipment, provisions, survival kits, and extra crew. The SB-29 was used operationally throughout the Korean War into the mid-1950s. It received its nickname from Dumbo, the Disney character, whose name was given to the aircraft used in previous missions to pick airmen up when they crashed at sea. TB-29 The TB-29 was a trainer conversion of B-29 used to train crew for bombing missions; some were also used to tow targets, and the designation included B-29s modified solely for that purpose. Their most important role was serving as radar targets in the 1950s when the United States Air Force was developing intercept tactics for its fighters. WB-29 The WB-29s were production aircraft modified to perform weather monitoring missions. An observation position was fitted above the central fuselage section. They conducted standard data-gathering flights, including from the UK over the Atlantic. They were also used to fly into the eye of a hurricane or typhoon to gather information. Following nuclear weapons tests, some WB-29s used air