This seems to come up a lot. Several times teammates collide and one decides to get mad about it. It really shouldn't be a big deal because it's just a game, but people do enjoy trying to play games well. So, I thought right-of-way should be discussed a bit. Granted, most people probably aren't going to even bother reading this but who knows, it might help some people.
If a ship isn't moving, it has the right of way. That doesn't mean a ship should run right into you and stop right there then blame you in chat, I'm assuming the players aren't deliberately being obnoxious.
If two ships are moving, the biggest ship has the right of way. Cruisers and Destroyers shouldn't collide with a moving Battleships because the Battleships simply cannot maneuver as easily, though everyone should be aware of everyone else. Destroyers shouldn't collide with any teammate. Carriers basically should never be collided with by any teammate.
A Battleship really has right-of-way at all times so long as they aren't being silly. If there are some teammates sitting at the corner of an island, the battleship shouldn't try to full-steam that edge of the island.
The reason I'm posting this is because it keeps happening and it baffles me. I was in a Myogi and a teammate Cruiser T-Boned me. It was about a minute into the match, the Cruiser was fleeing the side of the map they were placed at for the entire other side of the map. That was ridiculous enough, but then they put their bow into my stern and proceeded to ask me if I was blind. They apparently believed that I was responsible, as though it were a ground-pounder intersection and I had run a red light. The high seas rules for right-of-way are not the same as the rules for cars. It would help if people knew this. It would also help if people didn't treat a ~1% notch to HP as significant, but hey, one step at a time.