Keywords: Grumman XF4F-3 prototype in flight in 1939.jpg The U S Navy Grumman XF4F-3 Wildcat prototype BuNo 0383 during flight testing circa April 1939 This aircraft had originally been the XF4F-2 with rounded wings and tail and was rebuilt into the XF4F-3 It was finally written off on 16 December 1940 Official U S Navy photo http //www history navy mil/photos/images/h97000/h97481c htm NH 97481 from the U S Navy http //www history navy mil Naval History and Heritage Command ca 1939-04 USN PD-USGov-Military-Navy Grumman F4F Wildcat |