The war created great demand for new shipping, and shipyards and engine manufacturers alike experienced an unprecedented boom. Like many other builders of marine engines, the Morgan Iron Works was to take full advantage of this demand, building engines for 38 vessels during the war, including 23 merchantmen and 13 warships for the U.S. Navy. The plant even found time to turn out an engine for an Italian Navy warship in this period, the "Re Don Luige de Portogallo". U.S. Navy warships fitted with Morgan Iron Works engines included , , and the experimental high-speed warship . The Works also contracted for the complete construction of the monitor , although the hull was subcontracted out to another firm.