OV-10 Bronco USMCNorth American OV 10 Bronco USMC airplane model. The OV 10 was a twin turboprop short takeoff and landing aircraft conceived by the U. S. Marine Corps and developed under a U. S. Air Force, Navy and Marine Corps tri service program. The first production OV 10A was ordered in 1966, and its initial flight took place in August 1967. The Bronco's missions included observation, forward air control, helicopter escort, armed reconnaissance, gunfire spotting,