A port side detailof the Royal Fleet Auxiliary oiler Wave Chief (1946) under way during the Maritime Air Defence Exercise Highwood which took place in the North Sea and the Norwegian Sea. Only her forward well deck and her bridge are in the picture. The photographer is on board the frigate Rapid (1942) looking to starboard from the starboard side at 01 deck level as she prepares to refuel from the oiler. In the background is the destroyer Cavalier (1944), pendant D73, steaming away after refuelling.