HMS Erebus was a
First World War monitor launched on 19 June 1916 and served in both world wars. She and her
sister ship Terror are known as the
Erebus class. They were named after the two
bomb ketches sent to investigate the
Northwest Passage as part of
Franklin's Lost Expedition (1845-1848), in which all 129 members eventually perished.
Monitors were designed as stable gun platforms with a shallow
draft to allow operations close inshore in support of land operations and were not intended to contest naval battles.
Erebus was equipped with two
15 in (381 mm)/42 guns (removed from
HMS Marshal Ney) in a single forward turret mounted on a tall
barbette to extend the range of fire to 40,000 yd (22.7 mi; 36.6 km).
The
Erebus class were designed to outrange German heavy shore batteries and they were also fitted with highly effective
anti-torpedo bulges on each side of the
hull. (
See Wiki HERE)