Boeing B-29 Superfortress "Fifi"
Fifi" owned and maintained by the Commemorative Air Force (formerly the Confederate Air Force) since 1971 has held the title as the only flyable B-29 for many years. On 5 August 2010, Fifi was flown for the first time in several years, after engine trouble occurred during an airshow . It was grounded due to costly engine problems. In a joint press release, the Commemorative Air Force and the Cavanaugh Flight Museum, announced a pledge of $1.2M USD to re-engine Fifi.The Wright R-3350-57AM engines have been exchanged for a custom built combination of the R-3350-95W and R-3350-26WD engines.
The Boeing B-29 Superfortress was a four-engine propeller-driven heavy bomber that was flown primarily by the United States in World War II and the Korean War. The B-29 remained in service in various roles throughout the 1950s. The British Royal Air Force flew the B-29 and used the name Washington for the type, and the Soviet Union produced an unlicensed copy as the Tupolev Tu-4. The name "Superfortress" was derived from that of its well-known predecessor, the B-17 Flying Fortress. The B-29 was the progenitor of a series of Boeing-built bombers, reconnaissance aircraft, trainers and tankers including the B-29 variant, B-50 Superfortress. The later, jet powered B-47 Stratojet and the B-52 Stratofortress carried on the lineage.