Joe Walker's
... that NASA test pilot Joe Walker's X-1E and record-setting X-15 were two of the very few research aircraft to have nose art? 
... that <a href="./NASA" id="mwAZk" rel="mw:WikiLink" title="NASA">NASA</a> test pilot <b id="mwAZo"><a href="./Joseph_A._Walker" id="mwAZs" rel="mw:WikiLink" title="Joseph A. Walker">Joe Walker's</a></b> <a href="./Bell_X-1" id="mwAZw" rel="mw:WikiLink" title="Bell X-1">X-1E</a> and record-setting <a class="mw-redirect" href="./X-15" id="mwAZ0" rel="mw:WikiLink" title="X-15">X-15</a> were two of the very few research aircraft to have <a href="./Nose_art" id="mwAZ4" rel="mw:WikiLink" title="Nose art">nose art</a>?  <i id="mwAZ8">(pictured, Joe Walker and the X-1E)</i>