Parsons Marine Steam Turbine Company Parsons Marine Steam Turbine Company Parsons Marine Steam Turbine Company was a British engineering company based in Wallsend, North East England, on the River Tyne. The company was founded by Charles Algernon Parsons in 1897 with £500,000 of capital, and specialised in building the steam turbine engines that he had invented for naval use. The first ship to use a Parsons propulsion system was "Turbinia", launched in 1894; the successful demonstration of this vessel led to the creation of the company and the subsequent construction of the engines for the first two turbine-powered destroyers for the Navy, and , launched
Delaware River Iron Ship Building and Engine Works being not only America's first turbine-powered vessel, but also of eventually becoming the world's first helicopter carrier. The ship had a top speed of . The 3,750-ton sister ships "Yale" and "Harvard"—built in 1907 for the Metropolitan Steamship Company, which operated them between New York and Boston—had a top speed of and when first entering service were the fastest American-flagged vessels afloat. After the death of John Baker Roach in 1908, the Roach family heirs decided not to continue the business. The shipyard lay idle for some years until being leased in about 1913 by an engineer and former naval