This is my 1.5:1 KB50J Aerial Refueler in AF white livery, along with my 1.5:1 B50 Superfortress.

Boeing's B50 is an American strategic bomber. A post–World War II revision of the Boeing B-29, it was fitted with more powerful Pratt & Whitney R-4360 radial engines, stronger structure, a taller tail fin, and other improvements. It was the last piston-engined bomber built by Boeing for the United States Air Force, and was further refined into Boeing's final such design, the B-54. Though not as well known as its direct predecessor, the B-50 was in USAF service for nearly 20 years.