Air Screws

Propeller

The propeller of a anti-submarine warfare airplane the EP-3E Orion. Note the blade's attack angles are variable, and in this case turned flat.

800px-Hercules propeller

The propellers of a cargo aircraft Hercules. Note the blade's attack angle are variable, and in this case turned very sharp.

Contrarotating

A contra-rotating propellers of a modified P-51 Mustang fitted with a Rolls-Royce Griffon. Photo by Eric Gideon. source

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2004-09
© 2002 by Xah Lee.