Charles Vincent wrote:


In a statement, DARPA said that "prior attempts to demonstrate a vehicle
with the maneuverability of both a submersible and an aircraft have
primarily explored approaches that would endow flight capability to
platforms that were largely optimized for underwater operations." Those
efforts, the agency said, "have been unsuccessful largely because the
design requirements for a submersible and an aircraft are diametrically
opposed."

DARPA noted that a submersible aircraft requires the speed and range of
an aircraft and the loiter capabilities of a boat; along with the
stealth of a submarine.

The agency is first looking for conceptual design proposals. The
proposals must also identify technical challenges and outline models or
experiments that will show how those challenges can be overcome.

Perhaps the Mid-Atlantic Air Museum will enter theirs.

http://1000aircraftphotos.com/Contri...nhard/6559.htm


Kevin Gallimore


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