A hand drawn schematic of a blind spot on a (large) motorboat. The schematic was based on an image in the book "Leidraad voor het Stuurbrevet" by Richard Vooren, Paul Van den Keybus
<ul><li><a href="//commons.wikimedia.org/wiki/File:Blind_spot_(watercraft).JPG" title="File:Blind spot (watercraft).JPG">Blind_spot_(watercraft).JPG</a>: <a href="//commons.wikimedia.org/wiki/User:KVDP" class="mw-redirect" title="User:KVDP">KVDP</a></li>
<li>derivative work: <a href="//commons.wikimedia.org/w/index.php?title=User:Blleininger&amp;action=edit&amp;redlink=1" class="new" title="User:Blleininger (page does not exist)">Blleininger</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Blleininger" title="User talk:Blleininger"><span class="signature-talk">talk</span></a>)</li></ul>
<ul><li><a href="//commons.wikimedia.org/wiki/File:Blind_spot_(watercraft).JPG" title="File:Blind spot (watercraft).JPG">Blind_spot_(watercraft).JPG</a></li></ul>