Delivered to the USMC as an OV-10A in 1969 and converted to OV-10D in 1980 with more powerful engines and night vision equipment. Displayed (in an awkward shaded spot for photos) in the colours of Marine Observation Squadron 2 (VMO-2), Camp Pendleton, CA with which it operated from 1987 to 1993 when retired. Prior to that, it had been with NATC and VX-5