A line drawing top view of the <a href="https://en.wikipedia.org/wiki/T-34_Mentor" class="extiw" title="w:T-34 Mentor">Beechcraft T-34C Mentor</a>, a trainer aircraft used by the US Navy.
<a href="//commons.wikimedia.org/wiki/User:Inductiveload" title="User:Inductiveload">Inductiveload</a>
Self-made, Inkscape 0.45. The drawing was traced from <a rel="nofollow" class="external text" href="http://force.navair.navy.mil/images/t34_top.gif">http://force.navair.navy.mil/images/t34_top.gif</a>. This is a US Government (Navy) work, and so is in the public domain.