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http://www.aviation-history.com/curtiss/p40.html

http://www.acepilots.com/planes/p40_warhawk.html

http://www.chuckhawks.com/p40.htm

http://ww2db.com/aircraft_spec.php?aircraft_model_id=36

http://science.howstuffworks.com/curtiss-p-40-warhawk.htm

http://www.nationalmuseum.af.mil/factsheets/factsheet.asp?id=478

http://www.nitroplanes.com/p40warhawk.html

http://www.thefind.com/family/info-p~40-warhawk-aircraft

http://www.p40warhawk.com/Variants/Variants.htm

http://www.world-war-2-planes.com/p-40-warhawk.html

http://science.howstuffworks.com/curtiss-p-40-warhawk.htm/printable

http://www.warbirdsoverlongisland.com/warhawk.shtml

http://www.aviationarthangar.com/p40warhawk.html

http://www.uswarplanes.net/p40.html

http://www.armyaircorps.us/P-40_Warhawk.cfm

http://www.wwiivehicles.com/usa/aircraft/fighter/curtiss-p-40-warhawk.asp

http://www.historynet.com/curtiss-p-40-warhawk-one-of-ww-iis-most-famous-fighters.htm/2