Boeing C-97 Stratofreighter
（重定向自Stratofreighter）
![](/Images/godic/202502/13/C-97_stratofreighter_041116-F-9999R-0021141.jpg")
![Boeing KC-97G Stratofreighter of the Minnesota Air National Guard in 1971 after service as part of Military Airlift Command](/Images/godic/202502/13/Boeing_C-97G_0-30349_Minn_ANG_DM_22.04.711141.jpg")
![C-97A Stratofreighter 49-2607 of Minnesota Air National Guard (1960)](/Images/godic/202502/13/109th_Air_Transport_Squadron_Boeing_C-97A_Stratofreighter_49-26071141.jpg")
![A YC-97J, an experimental turboprop-powered variant, in flight](/Images/godic/202502/13/YC-97J_USAF1141.jpg")
The Boeing C-97 Stratofreighter is a long-range heavy military cargo aircraft developed from the B-29 and B-50 bombers. Design work began in 1942, with the prototype's first flight being on 9 November 1944, and the first production aircraft entered service in 1947. Between 1947 and 1958, 888 C-97s in several versions were built, 811 being KC-97 tankers. C-97s served in the Berlin Airlift, the Korean War, and the Vietnam War. Some aircraft served as flying command posts for the Strategic Air Command, while others were modified for use in Aerospace Rescue and Recovery Squadrons (ARRS).