A hypersonic attack weapon could be operational in 10 years or less, Richard Hallion, former Air Force chief historian, told attendees at a seminar on hypersonics sponsored by AFA's Mitchell Institute for Airpower Studies in Arlington, Va., June 30, 2010. Such a weapon would likely be an air- or sea-launched missile, not unlike the experimental X-51A air vehicle in size, Hallion said. The seminar coincided with the release of Hypersonic Power Projection, the new Mitchell Paper authored by Hallion. Here, an artist's rendition of the scramjet-powered X-51A hypersonic vehicle, which flew successfully on its maiden flight over the Pacific Ocean, May 26, 2010.
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