" By 1929 a handful of farsighted flight pioneers had concluded that “aviation could not progress until planes could fly safely day or night in almost any kind of weather.” Foremost among these was Dr. Jimmy Doolittle, recently armed with a PhD in aeronautical engineering from the Massachusetts Institute of Technology. In "

― Winston Groom , The Aviators: Eddie Rickenbacker, Jimmy Doolittle, Charles Lindbergh, and the Epic Age of Flight