Roberts-class monitor

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Class overview
Name	Roberts
Operators	Royal Navy
Preceded by	Erebus class
In commission	1 April 1941
Completed	2
Scrapped	2
General characteristics [1]
Type	monitor
Displacement	Roberts: 7,973 tons (Standard) 9,150 tons (Full load) Abercrombie: 8,536 tons (Standard) 9,717 tons (Full load)
Length	373 ft (114 m)
Beam	89 ft (27 m)
Draught	Roberts: 13 ft 6 in (4.11 m) Abercrombie: 14 ft 5 in (4.39 m)
Propulsion	2 shaft, Parsons steam turbines, 2 boilers, 4,800 hp
Speed	12.5 knots (14.4 mph)
Complement	442 - 460
Armament	2 × BL 15-inch Mk I guns in a single turret 8 × 4 in (100 mm) AA guns (4 × 2) 16 × QF 2-pdr "pom-pom"s (1 × 8, 2 × 4) 20 × Oerlikon 20mm guns
Armour	Turret: 13 inch Barbette: 8 inch Belt: 4-5 inches
Notes	Ships in class include: HMS Roberts (F40), HMS Abercrombie (F109)

The Roberts class of monitors of the Royal Navy consisted of two heavily gunned vessels built during the Second World War. They were the Roberts, completed in 1941, and Abercrombie, completed in 1943.

Features of the class were two 15-inch guns in a twin turret, shallow draught for operating inshore, broad beam to give stability (and also resistance to torpedoes and mines) and a high observation platform to observe fall of shot.