The Air Force primarily employed the OV-10A in a FAC role. The first of those arrived in Vietnam in July 1968, and in total 157 OV-10As were delivered to the United States Air Force before ...

The USAF and US Marine Corps acquired 157 OV-10A Broncos between 1966 and 1969 to perform light observation and forward air controller duties in Vietnam, according to a military fact sheet. The ...