Langley metal workers fabricated NACA cowlings for early test installations. Photograph published in Winds of Change, 75th Anniversary NASA publication, by James Schultz, c1992, (page 35). Photograph published in NACA mechanics install cowling for testing, 1928. Published in Engineer in Charge: A History of the Langley Aeronautical Laboratory, 1917-1958 by James R. Hansen, c1987 (page 125). Also published in Sixty Years of Aeronautical Research 1917-1977 By David A. Anderton - A NASA publication, c1978 (page 13).
