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fighting ships of the world

KAISERLICHE MARINE (GERMANY)

CRUISERS

ROON armoured cruisers (1905-1906)

Yorck 1914

Name No Yard No Builder Laid down Launched Comp Fate
Roon   28 Kiel KW 1902 27.6.1903 5.4.1906 barrack ship 1916
Yorck   167 Blohm & Voss, Hamburg 1903 14.5.1904 21.11.1905 sunk 4.11.1914

 

Displacement normal, t

9533

Displacement full, t

10266

Length, m

127.8 oa 127.3 wl

Breadth, m

20.2

Draught, m

7.73 mean 7.76 deep load

No of shafts

3

Machinery

3 VTE, 16 Dürr boilers

Power, h. p.

19000

Max speed, kts

21

Fuel, t

coal 1570 + oil 207

Endurance, nm(kts)

4200(12)

Armour, mm belt: 100 - 80, deck: 60 - 40 with 50 - 40mm slopes, main turrets: 150, secondary turrets: 100, casemates: 100, CT: 150

Armament

2 x 2 - 209/37 SK L/40 C/04, 10 x 1 - 149/37 SK L/40 C/97, 14 x 1 - 88/32 SK L/35 C/01, 4 x 1 - 7.9/79, 4 - 450 TT (1 bow, 2 beam, 1 stern)

Complement

633

Project history: Apart from their four funnels this class were little more than repeats of the previous design, though with minor adjustments to the armour. Like previous classes they were not very well protected, and were not considered particularly successful in service.

Ship protection: Main belt was 100mm between main barbettes and 80mm abreast them and was backed by 55mm wood. 40mm protective deck was connected with its lower edge by 40mm slopes, outside citadel protective deck had turtleback form and had 60mm flat and 50mm slopes. Fwd CT had 150m sides and 30mm roof, aft CT had 80mm sides and 20mm roof. Main turrets had 150mm sides and 30mm crowns, 4 15cm guns were placed in the turrets with 100mm sides, others were protected by 100mm casemates with 80mm shields, closed by 100mm bulkheads.

Modernizations: None.

Naval service: After Yorck was lost 4.11.1914 on German mines in the Jade, Roon soon followed the earlier armoured cruisers into retirement as a disarmed accommodation ship in 1916. A project to convert her into a seaplane carrier with 4 seaplanes, carried in a hangar aft, and 6-150mm and 6-88mm AA guns never materialized.

Roon

 

© Ivan Gogin, 2014