In order to obtain the effect of propeller race on steerage, author made an experiment on full sized ship (G.T. 334 ton), and gained the results as follows: 1. The distance which the ship has proceeded while her turning from 0°to 10°is nearly constant at any different speed. 2. The ratio on steerage of the ship running by inertia to the propelling is shown in Fig.7. 3. When the ship increases her eng. rev. for a moment, much more steerage, without increasing her speed so remarkably, can be obtained.
