Did you mean: Boeing B-29 Superfortress
Boeing KB-29 Superfortress
Aircraft model
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.
The 509th and 43d Air Refueling Squadrons were created in 1948 to operate the... Wikipedia