The story of Westinghouse gas turbine experience lists the many "firsts" achieved during the more than 50 years prior to the sale of the Power Generation Business Unit to Siemens, AG in 1998. As indicated below, the history actually begins with the successful development of the first fully US-designed jet engine during World War II. The first industrial gas turbine installation took place in 1948 with the installation of a 2000 hp W21 at Mississippi River Fuel Corp. gas compression station at Wilmar, Arkansas, USA.