Topic - Richard P. Hellion

Subscribe to this topic via RSS or ATOM
Related Stories
  • No Stories Found

More Stories →

Quotations
  • A leading authority on hypersonic flight, Richard P. Hellion, former chief historian of the U.S. Air Force, told The Times that the fiery end to the Falcon's April test flight "raises serious questions about how well DARPA conceived and executed the project."

    Pentagon to test 2nd near-space strike craft →

Happening Now