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Gromoboy 1906

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Громобой [Gromoboy]			Baltic Wks, St. Petersburg	20.5.1898	21.5.1899	8.11.1899	sold 7.1922

Technical data

Displacement normal, t	12360
Displacement full, t	12455
Length, m	140.6 pp 144.2 wl 146.6 oa
Breadth, m	20.9
Draught, m	7.92 max
No of shafts	3
Machinery	3 VTE, 32 Belleville boilers
Power, h. p.	14500
Max speed, kts	19
Fuel, t	coal 2400
Endurance, nm(kts)	8100(10)
Armour, mm	belt: 152, bulkhead: 178, glacises: 127, deck: 76 - 37, casemates: 127 - 51, CT: 305
Armament	4 x 1 - 203/43, 16 x 1 - 152/44 Canet, 24 x 1 - 75/48 Canet, 12 x 1 - 47/40 Hotchkiss, 18 x 1 - 37/20 Hotchkiss, 4 - 381 TT (4 beam)
Complement	874

Standard scale images

Graphics

Project history

Further development of high-endurance cruisers Riurik and Rossiya. Generally similar to the Rossiya but with some important changes including normal 3-shaft machinery.

Ship protection

Main 2.36m-high belt protected 91.5m length and had 152mm thickness (tapering to 102mm at lower edge) between 203mm gun sponsos. Belt was closed by 152mm bulkheads. Flat protective 38mm deck covered main belt, this deck has turtleback form outside citadel and had 63mm thickness near centerline with 76mm slopes. Fore 203mm guns were protected by 51mm transverse bulkheads and 121mm sponsons, 152mm battery had 51mm fore and aft transverse bulkheads, separated gun casemates were protected by 121mm outer and 51mm inner sides and 25mm roofs. Gun hoists were protected by 38mm armour. CT had 305mm sides. Boiler glacises had 38mm and communication tube 76mm protection.

Modernizations

1904: - 6 x 1 - 75/48; + 6 x 1 - 152/44 Canet

1913: - 14 x 1 - 75/48, 8 x 1 - 47/40, 18 x 1 - 37/20, 4 - 381 TT; + 2 - 450 TT (beam), 200 mines

1915: - 2 x 1 - 152/44; + 4 x 1 - 203/43

Naval service

She was mined on 23.5.1905 off Vladivostock but was repaired and served in the Baltic during the First World War. Gromoboy was disarmed in 1919 and broken up in 1922.