operations, average 461 per day: 99% general aviation and <1% military. 947 aircraft are based at the airport: 77 percent single-engine, 18 percent multi-engine, four percent jet, and one percent helicopter. FBOs: Encore Jet Center Threshold Aviation Group Airport businesses M.I. AIR Aviation Education – flight school Dubois Flight School Mach One Air Charters – jet charter provider with multiple FAA violations for unsafe operations See also List of airports in California California World War II Army Airfields References Notes Bibliography Manning, Thomas A. (2005), History of Air Education and Training Command, 1942–2002. Office of History and Research, Headquarters, AETC, Randolph AFB, Texas Shaw, Frederick J. (2004), Locating Air Force Base Sites, History’s Legacy, Air Force History and Museums Program, United States Air Force, Washington DC. External links San Bernardino County Department of Airports The History of Cal Aero Field USAAF Contract Flying School Airfields Airfields of the United States Army Air Forces in California Airports in San Bernardino County, California Post-World War II aircraft storage facilities World War II airfields in the United States