Aft 40 mm Bofors of Swedish patrol vessel <i>Carlskrona</i> (P04) photographed during the Northern Coasts 2014 exercise public pre sail event in Aura river in Turku. Helicopter on the landing pad is AgustaWestland AW109LUH.
<a href="//commons.wikimedia.org/wiki/User:MKFI" title="User:MKFI">MKFI</a>
<span class="int-own-work" lang="en">Own work</span>