Listening Igor Sikorsky.
Aviation was the first thing Igor Sikorsky decided to study.
Some of Sikorsky’s inventions were not successful.
Sikorsky contributed to world aviation with more than one invention.
Sikorsky’s company was founded in the United States in 1939.
Igor Sikorsky was 72 when he died.
In 2013, he was listed in the
Sikorsky Manufacturing Corporation became a part of the giant
He studied ....... at Kyiv Polytechnic Institute
Igor Sikorsky decided to study aviation ........due to the achievements of other famous inventors, like the Wright brothers and Ferdinand von Zeppelin
Which made him famous all over the world.
He created the first working helicopter in 1939
When he moved to the United States he worked for
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