What is effect of wind on Ship Manoeuvring or Motion ?

Wind on the Bow

With the wind on the bow, there will be an  increasing transverse wind-force when the bow falls off. The transverse wind-force grows to about 15 tons when the 25-knot wind is 30 degrees on the port bow and in­creases to about 27 tons when the ship is heading 60 degrees off the wind. The longi­tudinal wind-force decreases to about 4 tons with the wind 30 degrees on the bow and to about 2 tons with the wind 60 de­grees on the bow.

When moving ahead through the water, the ship will have a tendency to swing to port. Under sternway, there will be a strong tendency for the bow to fall off to starboard; it is only by coming ahead on   • the engine and bringing the pivot point forward that we can check the swing.