The Ontario Regiment (RCAC) Museum is a military museum located in Oshawa, Ontario, Canada. The museum is located on the South Field of the Oshawa Municipal Airport, 1000 Stevenson Rd N, Oshawa, Ontario.

The M551 "Sheridan" AR/AAV was a light tank developed by the United States and named after General Philip Sheridan, of American Civil War fame. It was designed to be landed by parachute and to swim across rivers. It was armed with the technically advanced but troublesome M81/M81 Modified/M81E1 152 mm gun/launcher, which fired both conventional ammunition and the MGM-51 Shillelagh guided anti-tank missile.