HMS E27
HMS E27 was a British E-class submarine built by Yarrow Shipbuilders, Scotstoun. She was launched on 9 June 1917 and commissioned in August 1917. HMS E27 was sold to John Cashmore Ltd in Newport for scrapping on 6 September 1922.
Design
Like all post-E8 British E-class submarines, E27 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. E27 was capable of operating submerged for five hours when travelling at.E27 was constructed with a 12-pounder QF gun mounted forward of the conning tower, although this was later removed. She had five 18 inch 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.