A couple of nice prototype machine firm images I discovered:
Steven F. Udvar-Hazy Center: principal hall panorama (F-4 Corsair, et al)
Image by Chris Devers
Quoting Smithsonian National Air and Space Museum | Vought F4U-1D Corsair:
By V-J Day, September two, 1945, Corsair pilots had amassed an 11:1 kill ratio against enemy aircraft. The aircraft’s distinctive inverted gull-wing design and style allowed ground clearance for the enormous, 3-bladed Hamilton Normal Hydromatic propeller, which spanned more than 4 meters (13 feet). The Pratt and Whitney R-2800 radial engine and Hydromatic propeller was the biggest and 1 of the most effective engine-propeller combinations ever flown on a fighter aircraft.
Charles Lindbergh flew bombing missions in a Corsair with Marine Air Group 31 against Japanese strongholds in the Pacific in 1944. This airplane is painted in the colors and markings of the Corsair Sun Setter, a Marine close-support fighter assigned to the USS Essex in July 1944.
Transferred from the United States Navy.
Vought Aircraft Firm
Nation of Origin:
United States of America
General: 460 x 1020cm, 4037kg, 1250cm (15ft 1 1/8in. x 33ft 5 9/16in., 8900lb., 41ft 1/8in.)
All metal with fabric-covered wings behind the main spar.
R-2800 radial air-cooled engine with 1,850 horsepower, turned a three-blade Hamilton Normal Hydromatic propeller with strong aluminum blades spanning 13 feet 1 inch wing bent gull-shaped on each sides of the fuselage.