Maybe because I'm from a landlocked country, but this article didn't help me understand the why.
Maybe because I'm from a landlocked country, but this article didn't help me understand the why.
- There's an incoming boat !
- From where ?
- From the left !
Is it the left of the sailor, or is it the left of the vessel ?
So it’s not actually achieving anything. You could just say left always refers to the ship’s left.
What you achieve is a new set of coordinates relative to the vessel. You are going north, sitting on the port, with a glass of wine in your right hand, instead of going up and sitting on the left.
If you use left and right for the ship, you wouldn't be able to use personal left and right without risking ambiguity. You'd just be trading one convenience for the other.
It's probably a similar reason people talk about the "driver's side" and "passenger's side" of a car instead of the left and right sides.
The concept of left and right hands was not commonly used historically. During the English Civil War many recruits didn't know which hand or foot was left or right. During marching training instructors used to stick some hay in one boot and straw in the other for each recruit and call out "Hay, Straw, Hay, Straw".
- Turn it left, no, I mean the ship’s left, not my left!
So they could just say something like "ship left" and "ship right" that are always referenced to the bow of the ship, and that would work almost as well, but having special terms just removes any possibility for confusion.