Erebus-class monitor

Class overview
NameErebus-class monitor
BuildersHarland and Wolff
Operators Royal Navy
Preceded byM29 class
Succeeded byRoberts class
In service1916 - 1946
In commissionAugust 1916
Completed2
Lost1
Scrapped1
General characteristics
TypeMonitor
Displacement
  • 8,000 tons (standard)
  • 8,450 tons (full load)
Length405 ft (123 m)
Beam88 ft (27 m)
Draught11 ft 8 in (3.56 m)
Propulsion4 oil-fired boilers, 2 shaft reciprocating engines, 6,000 hp (4,500 kW)
Speed12 knots (22 km/h; 14 mph)
Complement204, rising to 315 later
Armament
Armour
  • Belt and bulkheads: 4 inch
  • Barbette: 8 inch
  • Turret: 13 inch
  • Deck: 4 inch
  • Anti-torpedo bulges: 9 ft (2.7 m) wide

The Erebus class of warships was a class of 20th century Royal Navy monitors armed with a main battery of two 15-inch /42 Mk 1 guns in a single turret. It consisted of two vessels, Erebus and Terror, named after the two ships lost in the Franklin Expedition. Both were launched in 1916 and saw active service in World War I off the Belgian coast. After being placed in reserve between the wars, they served in World War II, with Terror being lost in 1941 and Erebus surviving to be scrapped in 1946.