USS Princeton underway in the river during Operation Jackstay in Vietnam.

Operation 'Jackstay' in Vung Tau, Vietnam. The USS Princeton underway in Dong Tranh River. A Deck Petty Officer gives a signal for a helicopter lift off. A man talks over a telephone behind him. A shoreline in the background. The officer gives signal for take-off. Crewmen on the flight deck. Helicopter UH -34D lands on the flight deck. Men rush up with a stretcher. Men offload wounded men on stretchers. A wounded man is carried on a stretcher by three other wounded men. The wounded men lowered on the elevator to the hangar bay level en route to the sick bay. Personnel stand around the wounded men. The elevator arrives to flight deck level. Seriously wounded men are taken back to helicopters for removal to shore facilities. Men arrive at the side of helicopters with stretchers. Armored jackets lying on the deck.