NAVYPEDIA



HOME
FIGHTING SHIPS OF THE WORLD
UNITED KINGDOM
SHIPS-OF-THE-LINE, CAPITAL SHIPS, MONITORS
ROBERTS monitors (2, 1941 - 1943)


Photo



Roberts  

Ships


Name No Yard No Builder Laid down Launched Comp Fate
Roberts F40 573 John Brown, Clydebank 30/4/1940 1/2/1941 27/10/1941 stricken 1955
Abercrombie F109 42 Vickers-Armstrong, Tyne 26/4/1941 31/3/1942 5/5/1943 drill ship 7/1946, sold for BU 1954


Technical data


Displacement standard, t

Roberts: 7973

Abercrombie: 8536

Displacement full, t

Roberts: 9150

Abercrombie: 9717

Length, m

113.8

Breadth, m

27.4

Draught, m

Roberts: 4.11 deep load

Abercrombie: 4.39 deep load

No of shafts

2

Machinery

2 sets Parsons geared steam turbines, 2 Admiralty 3-drum boilers

Power, h. p.

4800

Max speed, kts

12.5

Fuel, t

491 oil

Endurance, nm(kts)2600-2800(12)
Armour, mm

Roberts: belt: 381 - 102, barbette: 203, turret: 330 (face) - 280 (sides and rear) - 127 (roof), CT: 76 - 51, deck: 102 - 51, longitudinal bulkhead: 38

Abercrombie: belt: 381 - 102, barbette: 203, turret: 330 (face) - 280 (sides and rear) - 152 (roof), CT: 76 - 51, deck: 102 - 51, longitudinal bulkhead: 38

Armament

Roberts: 1 x 2 - 381/42 BL Mk I, 4 x 2 - 102/45 QF Mk XVI, 1 x 8 - 40/39 2pdr QF Mk VIII, 2 x 4 - 40/39 2pdr QF Mk VIII, 8 x 1 - 20/70 Oerlikon Mk II/IV

Abercrombie: 1 x 2 - 381/42 BL Mk I, 4 x 2 - 102/45 QF Mk XVI, 1 x 8 - 40/39 2pdr QF Mk VIII, 2 x 4 - 40/39 2pdr QF Mk VIII, 8 x 2 - 20/70 Oerlikon Mk II/IV, 4 x 1 - 20/70 Oerlikon Mk II/IV

Electronic equipment

Roberts: type 281, 3x type 282, 2x type 285 radars

Abercrombie: type 272M, type 281, 3x type 282, 2x type 285 radars

Complement

442/460



Standard scale images


<i>Abercrombie</i> 1943
Abercrombie 1943


Graphics


<i>Roberts</i>  
Roberts  


Ship project history


Roberts was built by the 1940 program under modified Erebus design with shorter hull, some smaller machinery power and geared turbines instead of machines. In comparison with a prototype they had more developed superstructure and outwardly resembled Nelson class. Roberts received 381mm turret from monitor Marshal Soult. The second ship of this class Abercrombie was armed with a turret in due time ordered for a battlecruiser Furious. She differed from leading ship by arranging of 102mm guns, they were raised at one deck level.

Protection


Main belt extended between barbette and main mast and sloped outwards along the top of bulges. Abercrombie has a greater area of 102mm deck armour than Roberts. Main deck over main magazines was raised and has 152-102mm glacis. There was also 38mm splinter protection for magazines. Thickness of lower deck over steering gear was 76mm. Underwater protection depth was 5.2m, there was 38mm torpedo bulkhead.

Modernizations


1943, Roberts: - type 281 radar; + 8 x 1 - 20/70 Oerlikon Mk II/IV, type 279, type 272P radars

7/1945, Roberts: - type 272P radar; + 8 x 1 - 40/56 Bofors Mk I/III, 4 x 1 - 20/70 Oerlikon Mk II/IV, type 268 radar, full displacement: 9500 t

1945, Abercrombie: - type 272M, 281 radars; + 4 x 1 - 20/70 Oerlikon Mk II/IV, type 293, 79B radars, oil stowage was 670t, full displacement: 9900t

1/1946, Roberts: 1 x 2 - 381/42 Mk I, 4 x 2 - 102/45 Mk XIX, 8 x 1 - 40/60 Mk III, 1 x 8 - 40/39 Mk VIA, 2 x 4 - 40/39 Mk VII, 20 x 1 - 20/70 Mk III, type 272P, type 279, 3x type 282, 2x type 285 radars

1/1946, Abercrombie: 1 x 2 - 381/42 Mk I/N, 4 x 2 - 102/45 Mk XIX, 1 x 8 - 40/39 Mk VIA, 2 x 4 - 40/39 Mk VII, 8 x 2 - 20/70 Mk V, 8 x 1 - 20/70 Mk III, type 79B, 3x type 282, 2x type 285, type 293 radars

Naval service


Roberts served as drill ship after war, stricken in 1955 and sold for BU in 1965. Abercrombie from 7/1946 served as drill ship and later as accommodation ship for RNVR.

Many thanks to Wolfgang Stöhr for additional information on this page.