The Sikorsky S-40 was an American sesquiplane amphibious flying boat built for an airline founded in what year?
Sikorsky S-40: The Sikorsky S-40 was an American sesquiplane amphibious flying boat built by Sikorsky in the early 1930s for Pan American World Airways. Pan American World Airways:  Founded in 1927 as a scheduled air mail and passenger service operating between Key West, Florida, and Havana, Cuba, the airline became a major company credited with many innovations that shaped the international airline industry, including the widespread use of jet aircraft, jumbo jets, and computerized reservation systems.
1927