The first plane was a size four commercial aircraft engine, designed by Igor Sikorsky first flew on December 10, 1913 and on February 25, 1914 has issued a test flight. with 16 passengers and fly - back. The route between St. Petersburg - Kiev. Between 21 and 23 June in the same year
The first plane is provided in a commercial airliner.Sikorsky Ilya Muro Metz.
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