The SB-29 'Super Dumbo' was a version of the B-29 adapted for air-sea rescue duty near the end of World War II. Sixteen 29s were modified to carry a droppable A-3 lifeboat under the fuselage, the SB-29 was used mainly as rescue support for air units that flew long distances over water. With the exception of the forward lower gun turret, all defensive armament was retained. They also carried a variety of radio equipment, provisions, survival kits, and extra crew. It was used 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.