Submarines' top speeds are different when they're underwater than when they're cruising on the surface -- and not always in ...

As technology advances, so does the speed at which submarines can travel underwater. What are the five fastest submarines ...

The USS Becuna submarine sank 3,888 tons of shipping and earned four battle stars in World War II.

And finally, Tony Scott's deliriously entertaining naval thriller Crimson Tide unsurprisingly failed to secure the support of ...

Chinese attack submarine, reportedly under construction in Wuhan, may be intended to counter the recent deployment of US-made ...

The Israeli Navy currently operates five Dolphin-class submarines based at Haifa. These diesel-electric vessels were designed ...

Discover how the MQ-9B SeaGuardian drone is transforming anti-submarine warfare with autonomous tracking and high-altitude ...

The Royal Navy's next attack submarine is one step closer to entering service after completing a major milestone. HMS Anson was submerged completely in a 'trim dive' at Devonshire Dock in Barrow.

In 1951, the Becuna underwent a Greater Underwater Propulsive Power (GUPPY) 1-A conversion. The submarine was outfitted with ...