#OTD in 1955, America's only midget submarine was launched at Oyster Bay, Long Island. SS X-1 was used for research and is now located at the Submarine Force Museum in Groton.
Video - US Navy Midget Submarine SS X-1
In terms of design, USS X-1 featured a number of similarities to the Royal Navy’s X class. Proportionally, the two types of midget submarine were broadly similar, bar USS X-1's larger beam and draft.
USS X-1 ran a total length of around 50 feet, a beam of roughly seven feet, and a draft just over six feet, whereas the general characteristics of the Royal Navy's X class were as follows: roughly 51-52 feet in length, roughly six feet for the beam, and around five feet for the draft.
