Submarine Group Ten wrote in a Facebook post ... Gun that can fire up to 3,900 rounds per minute protruding from the nose.

"The five officers, all of them experts in submarine work, used every resource in their effort to start once more the electrically driven engines which are used to propel submarin ...

Here’s What You Need to Know: Smaller torpedoes would allow submarines to carry much greater ... “the successful testing of the torpedo nose on the first try is a testament to ...