Stadt Zürich (ship, 1855) a few minutes. Thirteen men and eleven head of cattle died in this accident, making the sinking of the "Ludwig" by the "Stadt Zürich" the most serious shipping accident known at that time that had happened on Lake Constance. One consequence of the investigations into the disaster was an improvement in the signal regulations: in addition to the white bow light a green starboard and a red port light had to be carried. After the Bavarian ship, the "Ludwig" had sunk, the "Jura" was bought as a replacement, a ship which hitherto had worked on Lake Neuchâtel. She was dismantled,
Port and starboard is the left-hand side and the starboard side is the right-hand side. However, port and starboard never change; they are unambiguous references that are "not" based on the relative directions of an observer, just as the cardinal directions of east and west do not change no matter the direction a person faces. The term "starboard" derives from the Old English "steorbord", meaning the side on which the ship is steered. Before ships had rudders on their centrelines, they were steered with a steering oar at the stern of the ship on the right hand side of the ship, because more