Design proposals are being sought for a revolutionary craft described as a submersible aircraft or flying submarine.

Design proposals are being sought for a revolutionary craft described as a submersible aircraft or flying submarine. The US Government’s Defense Advanced Research Projects Agency (DARPA) says the futuristic craft will combine the speed and range of an aircraft, the loiter capabilities of a boat, and the stealth characteristics of a submarine.

“We are open to submissions from anywhere,” said a DARPA spokesman, “DARPA has a project budget of $3 billion.” The Submersible Aircraft should be capable of carrying eight men and their equipment a combination of 1,150 miles by air, 115 miles by sea, or 22 miles underwater, all in less than eight hours.

Proposers will need to outline experiments or computational models that will be used to demonstrate that the major technological limitations can be overcome.