Just like The Incredibles! — PID
(THE TELEGRAPH) — The Defense Advanced Research Projects Agency (DARPA), the US military science and technology department, has set about creating an aircraft that can fly low over the water until near its target before disappearing under the sea to avoid detection.
It would then creep closer in submarine form before attacking its target, probably a ship or coastal installation, and fly home.
New Scientist reports that the project, which has been in development since 2008, has reached design proposal stage, and several outside developers have submitted designs. DARPA could start allocating funding to developers in as little as a year.