Helicopter Aviation This site deals with the aerodynamics of helicopters, instruction on how to fly helicopters, mechanical components, and helicopter maneuvers.
Helicopter Zone Provides links to helicopter sites, animated helicopter GIFs, photographs, and downloads.
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.
