Picking nits here perhaps, but the schmucks piloting the Ady Gil crossed in front of the Japanese whaling vessel from the *starboard*, not the port side. In any event, pity they and their boat weren't completely crushed and subsequently chewed up by the prop.
Not talking about the whalers port side. I am talking the black vessels port side. Didn't clarify that I guess. A vessel that holds another vessel on her port side is the give way vessel.
