The O 19 class was a class of two submarines, built for the Royal Netherlands Navy by Fijenoord, Rotterdam. The ships were designed as submarine minelayer...

The O 21 class was a class of seven submarines, built for the Royal Netherlands Navy. The boats were still incomplete at the start of the German invasion...

O 19, laid down as K XIX, was an O 19-class submarine of the Royal Netherlands Navy that saw service during World War II. O 19, along with her sister ship...

The United States Navy (USN)'s sixteen O-class coastal patrol submarines were built during World War I and served the USN from 1918 through the end of...

O-class submarine may refer to: United States O-class submarine Oberon-class submarine Odin-class submarine Several early submarine classes of the Royal...

The Virginia class, or the SSN-774 class, is the newest class of nuclear-powered cruise missile fast attack submarines in service with the United States...

USS O-12 (SS-73) was an O-class submarine of the United States Navy. These later O-boats, O-11 through O-16, were designed by Lake Torpedo Boat to different...

class (or Triton class) of diesel-electric submarines was designed in the 1930s to replace the O, P, and R classes. Fifty-three members of the class were...

The Riachuelo class are a Brazilian class of diesel-electric and nuclear-powered attack submarines developed by the state-owned shipyard Itaguaí Construções...

class was, with the British S Class and T class submarines, the Dutch O 21 class and German Type VII class one of the most advanced submarine classes...