Photograph of a radial motor and propeller mounted on a test block, Dayton, Ohio, 1915.
Inscription on verso: "Dayton Ohio - 1915. Radial motor on test block."
Typescript article, "The Running and Regulation of the 80 H.P. Gnome Engine," circa 1917. 10 typed pages.
Inscription: "J. M. Wilson."
Part of a series of loose materials included inside the J. M. Wilson notebook.
Notebook of U.S. Army Air Service serviceman J. M. Wilson, circa July 1917. A4 sized, lined notebook containing notes on World War I-era aircraft engines such as Le Rhône, Beardmore, Salmson and Gnome, along with notes on aircraft rigging and other…
Syllabus for the Brasier-Hispano-Suiza motors instruction course, October 17, 1917. Describes a six-week schedule that includes seven hours a day in motor factory and 90-minute lecture topics. One page with handwritten notes on verso.
Photograph of three servicemen replacing the engine on a Curtiss JN-4 Jenny aircraft, circa 1918-1919.Inscription on album page: "And some of their troubles - changing motors 175 miles from home."Part of a photograph album from the J. V. and Harley…