HMS E45
HMS "E45" was a British E class submarine built by Cammell Laird, Birkenhead. She was launched on 25 January 1916 and was commissioned in August 1916. "E45" torpedoed U-boat in the North Sea on 15 October 1917. "E45" was sold in South Wales on 6 September 1922. Design. Like all post-"E8" British E-class submarines, "E45" had a displacement of at the surface and while submerged. She had a total length of and a beam of . She was powered by two Vickers eight-cylinder two-stroke diesel engines and two electric motors. The submarine had a maximum  surface speed of and a submerged speed of . British E-class submarines had fuel capacities of of diesel and ranges of when travelling at . "E45" was capable of operating submerged for five hours when travelling at . "E45" was armed with a 12-pounder QF gun mounted forward of the conning tower. She had five 18 inch (450 mm) torpedo tubes, two in the bow, one either side amidships, and one in the stern; a total of 10 torpedoes were carried. E-Class submarines had wireless systems with power ratings; in some submarines, these were later upgraded to systems by removing  a midship torpedo tube. Their maximum design depth was although in service some reached depths of below . Some submarines contained Fessenden oscillator systems.