HMS Holland 5
 Holland 5 was the last of the five Holland-class submarines ordered by the British Admiralty to evaluate the potential of the submarine with the Royal Navy. She was one of the first submarines to be accepted into Royal Navy service and unique to her class she carried one of the earliest periscopes. By the time she was launched a number of A class submarines had already been ordered to replace this class in navy service.She had a single hull design built from s grade steel.