Republic XP-47F Thunderbolt: The Republic XP-47F was a Laminar-Flow airfoil testbed modified from a P-47B airframe. The aircraft was flown for a few months during 1943 as part of Langley's role in the American War Effort NASA Identifier: L32186
The production P-47 wing, sometimes called the Seversky wing, does not get the credit it deserves. The basic semi elliptical wing was used from the Seversky P-35, P-41, P-43 and through all production models of the P-47. The straight leading edge with curved tips and semi-elliptical trailing edge, gave an elliptical area distribution without the manufacturing difficulties of a curved leading edge. It performed well in the high altitude air to air combat of the European theater. It was strong enough to carry heavy bomb loads and rockets for low level interdiction missions. In its final form in the P-47N it provided enough fuel for the P-47, like the P-51, to escort B-29s on missions to Japan.