Armoured Troop Carrier (Helicopter) as used for river warfare in South Vietnam, probably the smallest aircraft carrier class in the US Navy.
nelc reblogged
A U.S. Army Bell UH-1D/H Huey lands aboard an ATC(H) of River Assault Division 92, in 1967. The Armoured Troop Carriers were converted LCM-6 landing craft. RAD 92 was based on USS Whitfield County (LST-1169) in the Mekong Delta, Vietnam. https://wrhstol.com/310MqmN