RFA Tideflow refuelling at sea - I served on this ship for a time during 1970. Note RFA Tideflow is refuelling two ships which are visible in the photo (one on either side - the frigate F115 is HMS Berwick) and one astern which isn't visible in the photo (note you can see the trailing hose which connects to the ship's stern on the starboard side of the stern trailing into the sea).