90K views · 1.6K reactions | 1953 #OnThisDay The first and (thankfully) only nuclear artillery test is carried out when a 800 lb. shell is fired 6 miles at the Nevada Test Site. | American Heroes Channel | Facebook

Do you hear about nuclear shells for Iowa class battleships? The largest battleship salvo in the world: Operation Katie (kt). In the 1950’s the US Navy developed the MK23 nuclear shell for deployment aboard Iowa class battleships. In the early 1950’s as the Korean War was raging, the US Navy was tasked with adapting the Army’s Mark 8 11" tactical nuclear artillery shell for use with 16" battleship fleet guns. The Mark 8 shell was fitted into an exisiting MK13 shell casing with appropriate change