Mahan’s influence, both as author and adviser to the Secretary of the Navy, was pivotal. His writings strengthened the hand of imperialists and reformers who had called for new strategic thinking. The United States, they reasoned, was a growing industrial power with increasing overseas interests, and some—among them Mahan disciple and future Assistant Secretary of the Navy and President Theodore Roosevelt—believed the nation should have a navy befitting its role, one able to open markets, protect those economic interests, and project U.S. power.
In a burst of enthusiasm recalling that for the ship-of-the-line at the end of the War of 1812, Congress in 1890 authorized the country’s first full-sized battleships. They represented enormous commitments of resources, time, and money. Called “coastline” battleships to placate still powerful coast defense advocates, they were nevertheless another step in the United States’ emergence by the turn of the century as a world power with a widening sphere of influence. The Navy kept its faith in battleships until their vulnerability to air power and the superiority of aircraft carriers as attack weapons were demonstrated in World War II.
Although a succession of battleships, cruisers, submarines, and other vessels were now being laid down, Charlestown didn’t immediately reap the benefits. The majority of the warships launched between 1883 and 1905 were built by contract in private yards, and Charlestown built none of them. For most of the 1890s, the yard continued to be primarily a manufacturing facility. The New Navy’s hulls did account for much of the yard’s repair work. Steel hulls didn’t rot, but they more easily fouled with barnacles and seaweed than a coppered wooden hull and were less resistant to corrosion than iron. Maintaining them became the Charlestown yard’s bread and butter.
The Spanish-American War broke this pattern, making Charlestown once again a repair yard. Besides the new warships the United States was trying out against the Spanish navy, there was also the “mosquito fleet” (old monitors, converted yachts, and other small craft used for coastal defense during the war) to be maintained and repaired. In all some 50 vessels were serviced by 1,200-1,400 workers.
To beef up its workforce for war, the yard began hiring more foreign workers, especially from Scandinavian countries with shipbuilding traditions. Charlestown thereafter maintained a workforce averaging over 2,000 during the two decades before World War I—compared to the fewer than 400 workers there through most of the 1890s. The Spanish-American War was pivotal, marking a permanent expansion in the size and diversity of the Charlestown workforce.
At war’s end the United States was recognized as a world power with attendant responsibilities. This new status was symbolized by the establishment of a coaling station in the recently acquired Philippines. The capital ship building program continued apace—given renewed vigor by President Theodore Roosevelt, staunch advocate of big ships and a strong navy.
The yard continued to be mainly a repair facility with a steadily increasing workload. The new 750-foot Dry Dock 2, authorized three months after the sinking of Maine, was built to receive the Navy’s biggest ships. But soon after the massive structure’s 1905 completion, Britain launched H.M.S. Dreadnought, ushering in an even larger class of battleship the dock could not accommodate.
In this period the yard specialized in the smaller battleships and the newest type of warship: destroyers. These fast, versatile ships had evolved from British “torpedo boat destroyers” built in the 1880s to counter the new torpedo boats. The mobile torpedo, also developed in Britain, was a self-propelled explosive device launched from a warship’s deck, traveling underwater to open the hull of its target.
Developments in naval technology from the 1880s to the eve of World War II included nothing quite so dramatic as the epochal shifts from sail to steam and wood to iron, but the period saw advances in strategic weapons such as submarines and aircraft carriers, and major innovations that resulted in ships and shipbuilding essentially like what we see today. In the period before the age of flight, sophisticated warships were highly visible embodiments of the state of a nation’s technology, and the rapidly expanding U.S. fleet was an unmistakable sign of its growing industrial and technological prominence.
