As a test pilot, Alfred "Paul" Metz flew some of the nation's cutting-edge fighter aircraft, including this Y-23 "Black Widow" -- as well as a biplane from the former Soviet Union. <a rel="nofollow" class="external autonumber" href="http://www.nasa.gov/centers/langley/news/researchernews/rn_Metz.html">[1]</a>
Nasa.gov
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