HMS E43
HMS E43 was a British E class submarine built by Swan Hunter, Wallsend. She was laid down on 22 December 1914 and was commissioned on 20 February 1916. On 19 January 1917 E43 collided with  off Harwich in the North Sea; E36 sank with all hands. E43 was sold on 3 January 1921 but became stranded under tow west off St Agnes Head, Cornwall on 25 November 1921.

Design
Like all post-E8 British E-class submarines, E43 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 . E43 was capable of operating submerged for five hours when travelling at .

E43 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.

Crew
Her complement was three officers and 28 men.

References

Bibliography
 

 

British E-class submarines of the Royal Navy
Ships built on the River Tyne
1915 ships
World War I submarines of the United Kingdom
Royal Navy ship names
Ships built by Swan Hunter
Maritime incidents in 1917
British submarine accidents