A U.S. Navy Lockheed PV-1 <i>Ventura</i> patrol plane dropping a Mark XIII torpedo over Saratoga Strait, Washington (USA), on 4 June 1943. Note the wooden stabilizer fitted around the tail of this torpedo, and exhaust from its engine.
USN
Official U.S. Navy photo <a rel="nofollow" class="external text" href="http://www.history.navy.mil/our-collections/photography/numerical-list-of-images/nara-series/80-g/80-G-350000/80-G-356150.html">80-G-356150</a> from the U.S. Navy <a rel="nofollow" class="external text" href="http://www.history.navy.mil">Naval History and Heritage Command</a>