Northrop Grumman, together with Scaled Composites and Virgin Galactic, has unveiled its preliminary design for DARPA’s Experimental Spaceplane XS-1.
![28304[1]](http://alert5.com/wp-content/uploads/2014/08/283041.jpg)
Photo: Northrop Grumman Corp.
Category: Research
AFRL studying British SABRE engine concept
The U.S. Air Force Research Laboratory is studying English company Reaction Engines Ltd.’s Synergetic Air-Breathing Rocket Engine (SABRE) concept as a way to power hypersonic vehicles.
[thumb]http://www.space.com/26838-air-force-hypersonic-skylon-space-plane.html[/thumb]
F-35 test planes cleared to fly 6 six hours before engine inspections
The Pentagon has further eased restrictions imposed on the F-35 test fleet by allowing the roughly twenty jets to to fly six hours between engine inspection if their missions involved aerial refueling missions and weapons testing.
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Prototype Indian surface-to-surface missile lay unguarded at South Korean port
A prototype surface-to-surface short-range tactical ballistic missile was sent from India to a defense show in South Korea 10 months ago, however, the weapon lay unguarded at a local port when it missed the ship that will bring it home.
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Second Y-20 prototype now flying
