From left to right, SD Salmaid, SD Colonel Templer and SD Tormentor. These ships all date from the 1980s and were operated by the Royal Maritime Auxiliary service in support of the Royal Navy. Salmaid was for maintaning moorings and markers, Templer was an acoustic research ship and Tormentor was for Torpedo recovery. Since this photo was taken Tormentor has been scrapped and the other two sold.