SAN FRANCISCO, Dec. 5 (UPI) -- Inventor Graham Hawkes is banking on the notion his underwater flying machine would make the perfect gift for the yacht owner who has everything, including shipfuls of ...

If submarines possessed the high vision and quick speed of aircraft, they could dramatically extend their reach. If aircraft took off and landed from underwater platforms, their staging and strikes ...

Like Ushakov’s pioneering design, it’s a flying wing on pontoons, full of hollow spaces and a pressure compartment. Thirty-four to 36 feet long with a wingspan of between 90 and 110 feet, the ...

NEWPORT BEACH, California: British billionaire Richard Branson unveiled plans Tuesday to pilot a “flying” mini-submarine down to the furthest depths of the oceans, in his latest record-breaking ...

Guillemots and gannets do it. Cormorants and kingfishers do it. Even the tiny insect-eating dipper does it. And if a plan by the Pentagon’s Defense Advanced Research Projects Agency (DARPA) succeeds, ...

One of the United States' most advanced nuclear submarines returned to port in Washington state this week flying a Jolly Roger, a move steeped in maritime lore and mystery. The images of the USS Jimmy ...

SAN FRANCISCO, Dec. 5 (UPI) -- With the launch of the holiday season, American engineer, explorer, entrepreneur Graham Hawkes hopes his latest invention -- a winged submersible that soars beneath the ...