Langley researcher Elton W. Miller stands poised in the Propeller Research Tunnel, as if pondering the future of aviation in this image from mid-1927. Miller is looking on at the Sperry M-1 Messenger, the first full-scale airplane tested in the tunnel. Miller was chief of aerodynamics.
NASA
Langley researcher Elton W. Miller stands poised in the Propeller Research Tunnel, as if pondering the future of aviation in this image from mid-1927. Miller is looking on at the Sperry M-1 Messenger, the first full-scale airplane tested in the tunnel. Miller was chief of aerodynamics.Image Credit: NASA