active sites directory

Active Sites Directory is a free directory which covers a large variety of sites organized by category. Browse thousands of web sites that are more focused on one particular aspect of Science, Technology, Aerospace, Aeronautics, Helicopters with just the click of your mouse.

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Science: Technology: Acoustics, Ultrasound and Vibration (704)

http://www.abovetopsecret.com/pages/comanche.html

» Boeing Sikorsky RAH-66 Stealth Comanche Helicopter - Information on the RAH-66 Stealth Comanche helicopter and the stealth technology used in it.

» Helicopter Aviation - This site deals with the aerodynamics of helicopters, instruction on how to fly helicopters, mechanical components, and helicopter maneuvers.

http://www.angelfire.com/ca5/helicopter/index2.html

» Helicopter Zone - Provides links to helicopter sites, animated helicopter GIFs, photographs, and downloads.

http://www.howstuffworks.com/helicopter.htm

» How Helicopters Work - Photos and many brief videos in this narrative help to describe helicopter controls, capabilities and complexity.

» Hummingbird Project - Hummingbird is a small research helicopter, at Stanford University's Aerospace Robotics Laboratory, which navigates using an integration of the Global Positioning System with computer vision.

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