THE COMING OF STEAM AND ARMOURED NAVIES

THE FIGHT IN HAMPTON ROADS
March, 1862

Trafalgar was the greatest fight of the sailing-ships. There were later engagements which were fought under sail, but no battle of such decisive import. It was a fitting close to a heroic era in the history of naval war, a period of not much more than four centuries, in thousands of years. Before it, came the long ages in which the fighting-ship depended more upon the oar than the sail, or on the oar exclusively. After it, came our present epoch of machine-propelled warships, bringing with it wide-sweeping changes in construction, armament, and naval tactics.

Inventive pioneers were busy with projects for the coming revolution in naval war while Nelson was still living. The Irish-American engineer, Fulton, had tried to persuade Napoleon to adopt steam propulsion, and had astonished the Parisians by showing them his little steamer making its way up the Seine with clumsy paddles churning up the waters and much sooty smoke pouring from its tall, thin funnel. The Emperor thought it was a scientific toy. Old admirals—most conservative of men—declared that a gunboat with a few long "sweeps" or oars would be a handier fighting-ship in a calm, and if there was any wind a spread of sail was better than all the American's tea-kettle devices. Fulton went back to America to run passenger steamers on the Hudson, and tell unbelieving commodores and captains that the future of the sea power lay with the "tea-kettle ships."

In the days of the long peace that followed Waterloo, and the great industrial development that came with it, the steam-engine and the paddle-steamer made their way into the commercial fleets of the world, slowly and timidly at first, for it was a long time before a steamship could be provided with enough efficient engine power to enable her to show the way to a smart clipper-built sailing-ship, and the early marine engines were fearfully uneconomical. Steam had obtained a recognized position in small ships for short voyages, ferry-boats, river steamers, and coasting craft, but on the open ocean the sailing-ship still held its own. An eminent scientist proved to demonstration that no steamship would ever be able to cross the Atlantic under steam alone. He showed that to do so it would be necessary for her to carry a quantity of coal exceeding her entire tonnage capacity, and he expressed his readiness to eat the first steamer that made the voyage from Liverpool to New York. But he lived to regret his offer.

In 1838 the "Great Western" and the "Sirius" inaugurated the steam passenger service across the Atlantic, and the days of the liner began. By this time paddle-wheel gunboats were finding their way into the British navy, and other powers were beginning to follow the example of England. Steamships were first in action in 1840, when Sir Charles Napier employed them side by side with sailing-ships that had shared the triumphs of Nelson. This was in the attack on Acre, when England intervened to check the revolt of the Pasha of Egypt, Ibrahim, against his suzerain, the Sultan.

But still the steamship was regarded as an auxiliary. The great three-decker battleships, the smart sailing frigates, were the main strength of navies. The paddle-steamer was a defective type of warship, because her paddle-boxes and paddle-wheels, and her high-placed engines, presented a huge target singularly vulnerable. A couple of shots might disable in a minute her means of propulsion. True she had masts and sails, but if she could not use her engines, the paddles would prove a drag upon all her movements.

It was the invention of the screw-propeller that made steam propulsion for warships really practical. Brunel was one of the great advocates of the change. He was a man who was in many ways before his time, and he had to encounter a more than usual amount of official conservatist obstruction. For years the veteran officers who advised the Admiralty opposed and ridiculed the invention. When at last it was fitted to a gunboat, the "Rattler," it was obvious that it provided the best means of applying steam propulsion to the purposes of naval war. The propeller was safe under water, and the engines could be placed low down in the ship.

By 1854, when the Crimean War began, both the British and French navies possessed a number of steam-propelled line-of-battle ships, frigates, and gunboats, fitted with the screw. They had also some old paddle-ships. But in the fleets dispatched to the Baltic and the Black Sea there were still a considerable number of sailing-ships, and a fleet still did most of its work under sail. Even the steamships had only what we should now describe as auxiliary engines. The most powerful line-of-battle ships in the British navy had engines of only 400 to 600 horsepower.[17] With such relatively small power they still had to depend chiefly on their sails. Tug-boats were attached to the fleets to tow the sailing-ships, when the steamships were using their engines.

Another change was taking place in the armament of warships and coast defences. The rifled cannon was still in the experimental stage, but explosive shells, which in Nelson's days were only fired from mortars at very short range, had now been adapted to guns mounted on the broadside and the coast battery. Solid shot were still largely used, but the coming of the shell meant that there would be terrible loss in action in the crowded gun-decks, and inventors were already proposing that ships should be armoured to keep these destructive missiles from penetrating their sides.