The DH-4 was a versatile two-seat biplane designed by Geoffrey de Havilland for Airco and used as a principal Allied reconnaissance and light-bomber aircraft in the First World War. Large U.S. production runs made it the American air service's principal combat aircraft, while surplus and modified examples helped establish air-mail, air-ambulance, crop-dusting, and early transport operations after the war.
Future launches and major activity directly linked to this vehicle family.