"Yes, I remember the Spaniards tried to prove that the Maine blew up from one of her magazines."
"Such a thing couldn't happen in the American navy, because the discipline is too strict. Now, when a gun is being served, several men in the magazine get out the shells for the shellmen, who load them on the ammunition hoist over there, which is nothing more than a warship dumbwaiter. The hoist takes the shells up to the guns, in this case in the forward turret. Other hoists supply the rear turret and the secondary battery and other guns, including the rapid-firing weapons in the military tops."
"You mean those platforms around the upper ends of the two masts?"
"Exactly. The tops are the places for the sharpshooters and the range-finders."
"The range-finders?"
"Exactly. You see, it is a difficult matter to get an exact range on an enemy several miles off, and we have to try to get the range in various ways. One of the simplest ways is to station two range-finders in the tops, as far away from each other as possible. Each man gets a bead on the enemy with his glasses, and then proceeds to get the angle between the bead and an imaginary line drawn between his station and that taken by the other fellow. The three points—that is, the two range-finders and the enemy—form a triangle, and having one line and the two angles to work on, the working out of the problem gives the distance the gunners are hunting for."
"That makes pointing a gun nothing but a mathematical problem doesn't it?"
"It makes it partly a mathematical problem, lad. But having the distance isn't everything, for that will only give us the height at which a gun should be elevated in order to make its charge cover that distance and hit the mark, instead of flying over it or ploughing the water below it. After getting the distance we have to calculate on how the enemy's vessel is moving, if she is under steam, and then, most important, we have to let the gun go off at just the right motion of our own craft. In some navies they discharge the guns on the upward roll of the ship, and in others on the downward roll. My private opinion on that point is, a downward roll in clear weather, and an upward roll in a choppy sea, when you don't know just what is coming next."
"I see. Firing a gun isn't so easy as one would imagine."
"Easy enough if you want to waste ammunition, as those Spaniards did at Manila. Gun practice is expensive, and Spain hasn't any money to waste in that direction. Come, we'll have to get up to sleeping quarters now," concluded the old gunner, as a drum beat was heard sounding throughout the warship. "That's tattoo. It will soon be two bells, nine o'clock, and then comes pipe down."