This is an artist impression of an ANB-M glider from the early 1980's
<a href="//commons.wikimedia.org/w/index.php?title=User:Goney3&amp;action=edit&amp;redlink=1" class="new" title="User:Goney3 (page does not exist)">Goney3</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>