3-view drawing of <a href="https://en.wikipedia.org/wiki/Bell_X-2" class="extiw" title="en:Bell X-2">Bell X-2</a> rocket plane
Dryden Flight Research Center
1998-02
Dryden Flight Research Center <a rel="nofollow" class="external text" href="http://www.dfrc.nasa.gov/Gallery/Graphics/X-2/index.html">Graphics Collection</a> (archive <a rel="nofollow" class="external text" href="https://web.archive.org/web/20161224061543/http://www.dfrc.nasa.gov/Gallery/Graphics/X-2/EPS/EG-0085-01.eps">EPS</a>)