Home War Diary of Gen Frank P. Lahm – US Air Service World War One (Part Three) A de Havilland DH-4 that arrived in the United States in August 1917 became the prototype for DH-4s to be manufactured in the U.S. for use by American fliers such as the men seen here
A de Havilland DH-4 that arrived in the United States in August 1917 became the prototype for DH-4s to be manufactured in the U.S. for use by American fliers such as the men seen here
