Sikorsky S-40
The Sikorsky S-40 was an American amphibious flying boat built by Sikorsky in the early 1930s for Pan American Airways. During World War II they were used by the United States Navy for training.
The Sikorsky S-40 was an American amphibious flying boat built by Sikorsky in the early 1930s for Pan American Airways. During World War II they were used by the United States Navy for training.
The Sikorsky S-40 was an American amphibious flying boat built by Sikorsky in the early 1930s for Pan American Airways. During World War II they were used by the United States Navy for training.
Source: Wikipedia "Sikorsky S-40" · CC BY-SA 4.0
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