Paul H<p>Would 16 knots* be a sensible speed for a ship coming out of the Humber Estuary in dense fog?</p><p>(& what's wrong with a sensible speed unit like kilometres per hour).</p><p><a href="https://mastodon.online/tags/NorthSea" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NorthSea</span></a> <a href="https://mastodon.online/tags/Collision" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Collision</span></a> <a href="https://mastodon.online/tags/Allision" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Allision</span></a></p>