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.
Aircraft Transport and Travel Aircraft Transport and Travel Limited was a British airline formed during the First World War, a subsidiary of Airco. It was the first airline to operate a regular international flight (between London and Paris).