One of the most storied aircraft of WWII, the Vought F4U-4 Corsair was the first single engine production aircraft capable of 400 mph in level flight. With its characteristic gull wing and giant 18-cylinder Double Wasp engine, it proved a superb fighter in the Pacific Theater and achieved victory ratio approaching 11 to 1. The exploits of the famed Black Sheep Squadron of Corsairs was recounted by their leader, Marine fighter ace Major Gregory Pappy Boyington, in the book Baa Baa Black Sheep. This Flight Operating Instructions manual taught pilots everything they needed to know before climbing into the cockpit. Originally classified Restricted , the manual was declassified long ago and is here reprinted in book form. This revised version includes an original assembly breakdown manual as an appendix.