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Saturday, 23 September, 2017

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Category:  Science » Aeronautics and Aerospace » Aviation UPDATE URL | REPORT BROKEN LINK

Helicopter's History Site

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Traces the evolution of rotary wing aircraft back to Leonardo da Vinci, with many photographs.
URL: http://www.helis.com
Title: Helicopter History Site
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Description:

The helicopter history site traces the evolution of rotary wing aircraft back to Leonardo Da Vinci

Category: History - Aircraft - Aviation - Helicopter - Gyro - Evolution - Rotor - Inventor - Chopper - Helo - Copter


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