P-39Q Airacobra Propeller Blade

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Caption: 
The propeller blades on variable-pitch aircraft can adjust the angle of the blades, allowing the aircraft to "bite" out more air and increase performance.
Caption Written By: 
Jason McDonald
Photographed By: 
Jason McDonald
Date Photographed: 
Saturday, January 7, 2006
City: 
Duxford
State/Province/Oblast: 
Cambridgeshire
Country: 
England
Copyright Notice: 
©2011 MFA Productions LLC Please Do Not Duplicate or Distribute Without Permission

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