The Boeing YP-29A at the Langley Aeronautical Laboratory at Hampton, Virginia (USA). The YP-29A originally was an enclosed cockpit fighter with a NACA cowling around the Pratt and Whitney Wasp power plant, but was modified to this configuration with a Townend ring around the Wasp and an open cockpit. The redesigned headrest which extended to the tail surfaces was reminiscent of, and substantially larger than that on the Boeing.
NASA
1938-03-08
This image or video was catalogued by one of the centers of the United States <a href="https://en.wikipedia.org/wiki/NASA" class="extiw" title="w:NASA">National Aeronautics and Space Administration</a> (NASA) under <b>Photo ID:</b> <a rel="nofollow" class="external text" href="https://images.nasa.gov/search?q=EL-2003-00021&amp;page=1&amp;media=image,video,audio&amp;yearStart=1920&amp;yearEnd=2023">EL-2003-00021</a>.