A U.S. Navy Sikorsky HSS-1 <i>Seabat</i> helicopter on the USS <i>Corporal</i> (SS-346), 1956.
USN photo courtesy of ussubvetsofwwii.org.
<a rel="nofollow" class="external text" href="http://www.navsource.org/archives/08/0834605.jpg">Image</a> in <a rel="nofollow" class="external text" href="http://www.navsource.org/archives/08/08346.htm">navsource.org</a>