Ben Kelsey
... that, as Fighter Project Officer for the United States Army Air Corps, Ben Kelsey crashed two P-38 Lightning aircraft including the only prototype built?
... that, as Fighter Project Officer for the <a href="./United_States_Army_Air_Corps" id="mwF1c" rel="mw:WikiLink" title="United States Army Air Corps">United States Army Air Corps</a>, <b id="mwF1g"><a href="./Benjamin_S._Kelsey" id="mwF1k" rel="mw:WikiLink" title="Benjamin S. Kelsey">Ben Kelsey</a></b> crashed two <a class="mw-redirect" href="./P-38_Lightning" id="mwF1o" rel="mw:WikiLink" title="P-38 Lightning">P-38 Lightning</a> aircraft including the only prototype built?