94

91

have run 400 yds ahead; the second will have been transferred 300 feet and advanced 600 (my estimate). In another half minute B will have run 600 yds and the second advanced, on a course of 45° 200 yds which will be 140 ahead and 140 to right; total advance 340 yds; total transfer 240, which would place him 260 yds astern of B and 40 to the right of him.) (May not B also have to head to right a little to pass clear of D?) The half wheel to left to bring him into column would leave a gap of 540 yds between him and the leader, besides placing 240 yds to the right. If B do not shorten speed, there will be a lengthening of 600 yds in the column mainly between the leader and next two astern.

This supposes the enemy not to have exceeded twelve knots, a supposition which I think probable, if not absolutely safe.

In making this change to single column upon a flank ship, the fleet, except the leader and two followers, moves at first on a line parallel to the front of the enemy. While so moving, the whole broadside battery is brought into play maintaining therefore a fire quite equal to the bow fire which was surrendered. As fast as each ship comes into column, this advantage is given up. When the enemy's front is 1600 yds off, half the evolution is performed, half the fleet are in colum standing toward the enemy, the other half in column standing parallel to his front. The fleet that is able to hold on to its line abreast and full artillery fire to the last moment, that is, that is capable of performing the evolution described under all conditions, will have gained a decided advantage;