A self-stabilizing airfoil profile.
<a href="https://en.wikipedia.org/wiki/it:User:Ariannacassani" class="extiw" title="w:it:User:Ariannacassani">Ariannacassani</a> at <a href="https://en.wikipedia.org/wiki/it:" class="extiw" title="w:it:">Italian Wikipedia</a>
6 September 2005 (original upload date)
<span class="int-own-work" lang="en">Own work</span>