Directory of History Resources

Resources in This Category

Helicopter History Site

http://www.helis.com/
This site traces the evolution of rotary wing aircraft back to Leonardo Da Vinci.
Igor I. Sikorsky Historical Archives, Inc.

http://www.sikorskyarchives.com/
Dedicated to acquiring, preserving and protecting the historical materials that chronicle the aviation careers of Igor Sikorsky, the companies he founded and the accomplishments of its employees.

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