<p>Experimental rigid-rotor helicopter based on the KH-4, itself a local development of the Bell 47.
It first flew in April 1968.
Kakamigahara Aerospace Science Museum
Kakamigahara City, 
Gifu Prefecture, Japan
</p>
15th March 2019
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/65001151@N03">Alan Wilson</a> from Peterborough, Cambs, UK
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/ajw1970/48183474981/">Kawasaki KHR-1 ‘2500’</a>