Photographed from directly below, this USAF aircraft is consistent with a forward air control type such as the OV-10 Bronco or O-2 Skymaster, both of which marked targets and coordinated close air support for strike aircraft like the A-1 Skyraider throughout the Vietnam War. FAC pilots flew low and slow over hostile territory to direct airstrikes in support of ground troops and covert reconnaissance teams. Project: 219023