Keywords: Rockwell OV-10 Bronco.jpg A U S Navy Rockwell OV-10A Bronco of light attack squadron VAL-4 Black Ponies in Vietnam VAL-4 tail code UM was established in 1969 and retired in 1972 Official U S Navy photograph http //www nwc navy mil circa 1969 -72 USN PD-USGov-Military-Navy North American OV-10 Bronco |