Glide slope indicator manufactured by Cilas, mounted at the flight deck aboard F260 Braunschweig. It is part of the helicopter visual landing aids system and helps the pilot to approach the flight deck at a suitable decline.
<a href="//commons.wikimedia.org/wiki/User:Luen" title="User:Luen">Erik Lundin</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>