<p>A sample of OH-6J's rotor hub.
</p>
Taken at Kakamigahara Aerospace Science Museum (<a rel="nofollow" class="external text" href="http://www.city.kakamigahara.lg.jp/museum/">かかみがはら航空宇宙科学博物館</a>).
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/25451699@N04">tataquax</a> from Japan
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/25451699@N04/20956760129/">かかみがはら航空宇宙科学博物館</a>