Rockwell Field is a former United States Army Air Corps military airfield, located northwest of Coronado, California on North Island, San Diego. This airfield played a fundamental role in the development of United States military aviation in the period before and during World War I. Originally The Curtiss School of Aviation, founded by Glenn Curtiss. In November 1912, the Army established a permanent flying school on the island. It served as a major flying school during World War I, and remained active as an Army Air Corps facility after the war. The facility was transferred to the United States Navy on 31 January 1939.