<a href="https://en.wikipedia.org/wiki/Dornier_Do_29" class="extiw" title="en:Dornier Do 29">Dornier Do-29 V-1</a> YA-101 (s/n 29-001) an experimental S/VTOL airplane with tilting propellers.
<a href="//commons.wikimedia.org/wiki/User:Ad_Meskens" title="User:Ad Meskens">Ad Meskens</a> (scan)
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>