Double rotar US Air Force Helicopter.
David Jolley <a href="https://en.wikipedia.org/wiki/User:Staplegunther" class="extiw" title="en:User:Staplegunther">Staplegunther</a>
<p><span class="int-own-work" lang="en">Own work</span>
</p>
<ul><li><span lang="en" dir="ltr">Original text: <i><bdi lang="">I (<a href="https://en.wikipedia.org/wiki/User:Staplegunther" class="extiw" title="en:User:Staplegunther">Staplegunther</a>) created this work entirely by myself.</bdi></i></span></li></ul>
Transferred from English Wikipedia; <a href="https://en.wikipedia.org/wiki/File:HillAFBmuseum2.jpg" class="extiw" title="en:File:HillAFBmuseum2.jpg">en:File:HillAFBmuseum2.jpg</a>