Posted by Jock on June 19, 2007 at 08:36:58 from 87.105.81.146 user Jock.
In Reply to: Re: Ships, boats and submarines posted by Andy on June 19, 2007 at 07:31:15:
"ever heard of a U ship"
There were also the K class submarines with a surface speed of 24 knots. They were introduced in 1915 and were steam powered. The original design was flawed, but a debugged version, the K26, was built and sailed from 1919 until 1931.