The guns on the top of the plane. There's also an open hatch covered by plexiglass so one can stand and look around.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/80441498@N00">Venkat Mangudi</a>
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/venkatmangudi/25979190646/">P3221964</a>