Abstract
In order to recognize some statisical characters of avoiding act, author analyzed the record of "Coarse Recorder" of DW 120, 000 ton tanker, which was putting on the line between Japan and Persian Gulf. There were considered avoiding acts of 338 cases which had ever been practised in Ocean, Malaca Strait and Persian Gulf during 140 days, that is, her voyages of four times. And author quantitatively got a few statistical results regard to following items about avoiding act (1) The Number of avoiding act practised in a watch (2) The Direction, Grade and Pattern of an avoiding act (3) The Transverse shifting distance & proceeding in the acts
