It was in the First World War that the destroyer became a "maid of all work" and her value as a convoy escort and anti submarine vessel was realized
A. Ship, boat , or vessel is a floating structure capable of motion. As such, it must be strong enough to support the loads it carries.
The Primary reason for the preparation of this work was to present the characteristics of a ship in such a way as to be of the maximum usefulness to officers of the Merchant Marine