It has been remarked, that a ship of war should carry her lowest tier of cannon sufficiently above the surface of the water to be used when necessary. If this quality is neglected, a small ship will have the advantage of a large one, inasmuch as the latter cannot open her lower battery in a fresh side-wind, without being exposed to extreme danger, by receiving a great quantity of water in at her ports between-decks.

A ship should be duly poised, so as not to dive or pitch heavily, but go smoothly and easily through the water, rising to the waves when they run high, or when the vessel has reduced her sail to the storm. If she is deficient in this article, the seas will frequently burst aboard, and strain the decks or carry away the boats. The masts are also greatly endangered from the same cause.

A ship should sail well when large, or before the wind; but particularly when close-hauled, or sailing with a side-wind. She should also be enabled in the latter situation to keep her wind, without deviating much to leeward; to work and tack easily, and lie in a turbulent sea without straining violently.

Many of our shipwrights have considered it extremely difficult, if not impracticable, to make a ship carry her cannon well, bear a competent sail, and advance swiftly through the water; because a very full bottom is necessary to acquire the two first qualities; whereas a sharp floor is better fitted to procure the latter. But when it is remembered, that a full ship will carry a much greater force of sail than a sharp one, a good artist may form the body so as to unite all these three qualities with the additional one of steering easily, by paying a proper attention to the following general rules.

To make a ship carry a good sail. A flat floor-timber somewhat long, or the lower-futtocks pretty round, a streight upper-futtock, the top-timber to throw out the breadth aloft; at any rate to carry the main-breadth as high as the lower-deck. Now if the rigging be well adapted to such a body, and the upper-works lightened as much as possible, so that the whole contributes to lower the center of gravity, there will be no reason to doubt of the ship’s carrying a good sail.

To make a ship steer well, and answer the helm readily. If the fashion-pieces be well formed, the tuck, or spreading-parts under the stern, carried pretty high; the midship-frame well forward; a considerable additional depth in the draught of water abaft more than forward; a great rake forward and none abaft; a snug quarter-deck and forecastle: all these will greatly facilitate the steerage; and a ship that sails well will always steer easily.

To make a ship carry her guns well out of the water. A long floor-timber, and not of great rising; a very full midship-frame, and low tuck, with light upper-works.

To make a ship go smoothly through the water, and prevent her from pitching heavily. A long keel, a long floor, not to rise too high afore and abaft; but the area, or space contained in the fore-body, according to the respective weight it is destined to carry: all these are necessary to make a ship pass easily through the sea.

To make a ship keep a good wind and drive little to leeward. A good length by the keel; not too broad, but pretty deep in the hold, which will occasion her to have a short floor-timber and a very great rising. As such a ship will meet with great resistance in driving sideways, and feel very little, in advancing or going ahead, she will fall very little to leeward.

Being thus furnished with the methods to qualify a ship for the different purposes of navigation, the only difficulty remains to apply them properly in the construction, which must, in a great measure, be left to the judgment of the artist. The whole art then is evidently to form the body in such a manner, as that none of these qualities shall be entirely destroyed; and in giving the preference to that which is principally required in the service for which the ship is destined. As it therefore appears possible to unite them all in one vessel so that each of them may be easily discerned, a neglect of this circumstance ought to be attributed to the incapacity of the shipwright, who has not studied the principles of his art with proper application. See Naval Architecture, Building, and Ship.