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

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

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.

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

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, ...

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.

A Trident submarine displaces 18,700 tons while submerged. Normally when we would surface, we would blow 2,000 tons of water out of the ballast tanks so we could sit higher in the water.

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 ...

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, ...