The Boeing KB-29 was a modified Boeing B-29 Superfortress for air refueling needs by the USAF. Two primary versions were developed and produced: KB-29M and KB-29P.
Experimental Boeing YKB-29T Superfortress (Boeing B-29-90-BW Superfortress) 45–21734, assigned to the 421st Air Refueling Squadron, Yokota Air Base, Japan, 1954 Returned to United States and retired to AMARC, Feb 1955.
KB-29P tanker of 420th Air Refueling Squadron based at RAF Sculthorpe Norfolk in 1956
The 509th Weapons Squadron is a United States Air Force unit. It is assigned to the USAF Weapons School at Fairchild Air Force Base, Washington. The squadron is a geographically separated unit of the 57th Wing at Nellis Air Force Base, Nevada.