Open Directory - Science: Technology: Aerospace: Aeronautics: Helicopters: History

See also:

Helicopter History Site - This site traces the evolution of rotary wing aircraft back to Leonardo Da Vinci.
Helicopters and Autogiros 1939 to 1945 - Aviation history in the WWW: Index of aircraft by category and time period.
Igor I. Sikorsky Historical Archives, Inc. - 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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Last update: Wednesday, November 5, 2008 2:46:26 PM EST - edit

Open Directory - Reference: Museums: Transportation: Aviation

See also:

This category in other languages:

Aviation Museum - Directory according to area. Provides detailed descriptions, photos, and lists of aircraft displayed.
Planespot.com - Showcases aviation museum and air show visit reviews with photo galleries and information about the importance of each location provided for potential visitors.
World Aviation Museums - Provides details and links to aviation museums. Details include opening times and location.

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Last update: Monday, October 10, 2011 1:59:28 PM EDT - edit