If China’s rim-driven pumpjet propulsion technology works, it would be a significant advance for the People’s Liberation Army Navy’s undersea force. In a recent article that appeared in the South ...

Although underwater scooters may offer users an aquatic "thrill ride," many of the things don't go much faster than the ...

But the real magic is its propulsion. The Virginia-class does not use a traditional, multi-bladed propeller. A spinning propeller, no matter how well-designed, creates "cavitation"—a fizz of tiny, ...

America’s Virginia-class submarines are the backbone of U.S. undersea warfare — fast, stealthy, nuclear-powered attack subs ...