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Helicopter - Igor Sikorsky

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The Helicopter

1932

Igor Sikorsky

Sikorsky's Direct Lift Amphibian Type Aircraft looks like a cross between an airplane, a boat and today's modern helicopter.

The dual horizontal engines provided forward thrust and compensated for the torque resulting from the main lift propeller. The craft was equipped to alight on land and water.

Sikorsky was the founder of the Sikorsky Helicopter company which today is part of United Technologies Inc.

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The above double-matted, framed patent can be yours!

A piece of history from the aerospace industry

All patent art is double-matted 16" x 20" with flat-black frame.

A full copy of the patent is included along with the historical context for the invention.

Price: $150.00 USD

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Last updated: 17 March, 2003

 The Art of Invention (c) Copyright 2001, 2002, 2003 by Wes Bruning

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