Twelve feet deep

The ship is a catamaran that weighs one thousand tons, is almost as long as a football field, and can carry two helicopters. It's also able to operate in water as shallow as twelve feet.

That's the new Sea Fighter, which is a small-scale concept ship being tested right now. Techniques and technologies learned from Sea Fighter will be applied to the Navy's next-generation Littoral Combat Ship. The US Coast Guard is participating in the test program as well, because Sea Fighter might just become their new standard coastal patrol craft.

Murdoc Online has pictures and links.