On board the Royal Navy Type 81 general purpose frigate Tartar (1960) while at sea off Barbados during exercises involving the 7th and 8th Frigate Squadrons. The Tartar is a unit of the 8th Frigate Squadron (West Indies). The photographer is on the starboard side of the quarterdeck just abaft the helicopter hangar looking aft and to port showing the 4.5 inch gun mount trained to port. The gun's crew are at action stations and the officer of the gun has a pair of binoculars and a whistle round his neck.