page_title: William E. Boeing
section_title: Breakup of Boeing Group
hierarchical_section_title: William E. Boeing / Breakup of Boeing Group
caption_attribution_description: English: Title: William E. Boeing and Fred Rentschler standing in front of an airplane, 1929
context_page_description: William Edward Boeing was an American aviation pioneer who founded The Boeing Company in 1916.
context_section_description: In 1929, Boeing joined with Frederick Rentschler of Pratt & Whitney to form United Aircraft and Transport Corporation. The new grouping was a vertically integrated company with interests in all aspects of aviation, intending to serve all aviation markets. In a short time, it bought a host of small airlines, merging them with Boeing's pioneering airline under a holding company, United Air Lines.
  In 1934, the United States government accused William Boeing of monopolistic practices. The same year, the Air Mail Act forced airplane companies to separate flight operations from development and manufacturing. William Boeing divested himself of ownership as his holding company, United Aircraft and Transport Corporation, broke into three separate entities:
  United Aircraft Corporation, holding the former eastern US manufacturing (now United Technologies Corporation)
  Boeing Airplane Company, with western US manufacturing, which later became The Boeing Company
  United Air Lines for flight operations
  He began investing most of his time in his horses in 1937.
  Boeing Airplane Company, though a major manufacturer in a fragmented industry, did not really become successful until the beginning of World War II.
caption: Boeing and Fred Rentschler, 1929
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