For example, distances both at sea and in the air are considered in sea miles (1852 m). In English, the right side of the ship is called Starboard (literally “star board”). In fact, the stars have nothing to do with it, Star in this old word is related to the modern English verb to steer – “steering”. In the old days, ships for steering and mooring used the steering oar, and since most people are right -handed, the oar was located on the right. Accordingly, the left side is called Portboard, that is, “Board for mooring”. The ancient marine tradition migrated to aviation, and the entire airfield infrastructure is now designed to land and land passengers from the left side, as if on the pier and from the pier. On the left on the plane is the seat of the ship commander, which, of course, is more convenient to steer to the “sleeve” with the left side.