On board the Type 12 general purpose frigate Plymouth (1959) alongside the south side of number 3 basin in Chatham Dockyard at the end of a modernization which commenced in August 1966. The ship is berthed starboard side to the quay. The photographer is in the helicopter hangar between 49 and 57 stations on the centreline of 1 deck looking to starboard and slightly forward showing the stairs up to the air electrical maintenance room on the left. A first aid cabinet, a ladder, a firesuit man's locker and two dry powder fire extinguishers are against the bulkhead. A vertical format negative.