S Class SubmarineEdit
|Afilliation||United States Navy|
|Upgraded From||O Class|
|Upgrades Into||V-Boat (Barracudas)|
The United States' S-class submarines, often simply called S-boats (sometimes "Sugar" boats, after the then contemporary Navy phonetic alphabet for "S"), were the first class of submarines with a significant number built to United States Navy designs. Others of this class were built to contractor designs.
The United States Navy commissioned 51 S-class submarines from 1920 to 1925. The first S-boat, USS S-1 (SS-105), was commissioned in 1920 and the last numerically,USS S-51 (SS-162), in 1922. The last of the class actually commissioned was USS S-47 (SS-158) in 1925.