Which aircraft manufacturer used to be known as Pacific Aero Products Co.?

In the early years of aviation, the development, manufacture and operation of aircraft were often intertwined. The Boeing Company was started in 1916, when American lumber industrialist William E. Boeing (1 October 1881 – September 28, 1956) founded Aero Products Company in Seattle, Washington. Shortly before doing so, he and Conrad Westervelt created the "B&W" seaplane, shown in the accompanying picture.

In 1917, the organization was renamed Boeing Airplane Company, with William Boeing forming Boeing Airplane & Transport Corporation in 1928. In 1929, the company was renamed United Aircraft and Transport Corporation, followed by the acquisition of several aircraft makers such as Avion, Chance Vought, Sikorsky Aviation, Stearman Aircraft, Pratt & Whitney, and Hamilton Metalplane.

In 1931, the group merged its four smaller airlines into United Airlines. In 1934, the manufacture of aircraft was required to be separate from air transportation. Therefore, Boeing Airplane Company became one of three organizations to arise from the dissolution of United Aircraft and Transport; the other two groups were United Aircraft (now United Technologies) and United Airlines.