A Martin MB-2 at the Langley Aeronautical Laboratory at Hampton, Virginia (USA). Most of the early aircraft flown by the NACA at Langley were smaller, pursuit type aircraft. One of the first large multi-engine types tested was this Martin MB-2 bomber.
NASA
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-2002-00574&amp;page=1&amp;media=image,video,audio&amp;yearStart=1920&amp;yearEnd=2023">EL-2002-00574</a>.