The ballast and trim tanks control a submarine's buoyancy. To put it simply, when a submarine needs to surface, it empties ...

World War II submarines were some of the most feared and effective weapons of the war. Operating mostly in stealth, these ...

What you are seeing here is a rare test of a fast attack nuclear submarine's ability to rapidly empty its ballast tanks via forcing high pressure air into them, otherwise known as an "emergency blow." ...

Pumps transfer water between the front and rear ballast tanks to keep the submarine level or adjust the pitch as needed. Control Surfaces. Jelena83 / Getty Images. A submarine blueprint.

The report confirms that one of Corner Brook's main ballast tanks ruptured last March during a test by Babcock Canada, which has been contracted to maintain and repair the sub fleet since 2008.

From Berlin came a report of sucfessful tests of a metal noncollapsible diving suit. The suit has a metal body built solidly like the conning tower of a submarine, and flexible aluminum arms and ...

2) The use of ballast tanks for surfacing in an ambient submarine seems less than ideal. To avoid issues others have pointed out, you need to accurately control the ascent to the surface.

The USS Clamagore departed from its home of more than 40 years at Patriots Point Naval and Maritime Museum. As the World War II-era submarine started its journey to Norfolk, ...

The USS Nautilus was the world's first nuclear-powered submarine. It participated in scientific and military operations around the world.

The ballast and trim tanks control a submarine's buoyancy. To put it simply, when a submarine needs to surface, it empties its tanks of water and when it needs to submerge, ...