![](http://www.alamy.com/thumbs/6/06C6CC0F-239D-4B91-A093-030894D9C659/GE4G47.jpg)
Description: (November 9, 1944) General Henry Harley "Hap" Arnold visits the Aircraft Engine Research Laboratory, National Advisory Committee for Aeronautics, Cleveland, Ohio, now known as John H. Glenn Research Center at Lewis Field. Inspection of ice formation on propeller blades. General Arnold was the Commanding General of the Army Air Forces during World War II and a strong advocate for aeronautical research. Center: GRC Image # : C1944-7494
Size: 2043px × 1634px
Photo credit: © NC Collections / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: aircraft, arnold, center, engine, flight, hap, laboratory, lewis, naca, propulsion, research