Abstract
A vessel on the ocean which stops her ergine has the wind from abeam or a little aft, and she starts side drifting. We tried to make clear the relation between the quantity of side drifting and wind velocity, and furthermore attempted to separate the wind effect to a vessel from the wave or swell one by an experiment of a model ship. For this purpose we embarked on the Atsumi, the observation ship at TANGO POINT, about a month and made several experiments.
