NAVYPEDIA

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San Marco 1910

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
San Giorgio			R. Cantiere di Castellamare di Stabia	4.7.1905	27.7.1908	1.7.1910	scuttled 22.1.1941
San Marco			R. Cantiere di Castellamare di Stabia	2.1.1907	20.12.1908	7.2.1911	target 1931

Technical data

Displacement normal, t	San Giorgio: 10167 San Marco: 10969
Displacement full, t	San Giorgio: 11300 San Marco: 11900
Length, m	131.0 pp 140.8 oa
Breadth, m	21.0
Draught, m	San Giorgio: 7.30 San Marco: 7.80
No of shafts	San Giorgio: 2 San Marco: 4
Machinery	San Giorgio: 2 VTE, 14 Blechynden boilers San Marco: 4 Parsons steam turbines, 14 Babcock & Wilcox boilers
Power, h. p.	San Giorgio: 19500 San Marco: 23000
Max speed, kts	San Giorgio: 23.2 San Marco: 23.8
Fuel, t	coal 1560 + oil
Endurance, nm(kts)	San Giorgio: 6270(10) San Marco: 4800(10)
Armour, mm	belt: 200, main gun turrets: 200, secondary gun turrets: 160, deck: 50, CT: 250
Armament	2 x 2 - 254/45 A1907, 4 x 2 - 190/45 A1908, 18 x 1 - 76/50 V1908, 2 x 1 - 47/50 V1908, 2 x 1 - 6.5/80, 3 - 450 TT sub (1 fwd, 2 beam)
Complement	698 - 705

Standard scale images

Graphics

Project history

Largest and strongest armoured cruisers of Italian Navy. They were ordered soon after Amalfi class and had similar armament, but advanced protection, improved seaworthiness and habitability. San Marco differed by machinery: she became the first Italian ship with steam turbines. To the mid-1930s San Giorgio was used as TS. In 1937-1938 she was converted to coast defence ship at Spezia. In the early 1940 she was converted to AA floating battery and passed to Tobruk.

Ship protection

Main 200mm belt (full ship length, tapering to 80mm at lower edge), medium belt between stem and aft main gun turret and upper belt between 190mm gun turrets expanded to upper deck, main and upper belts were closed by 150mm bulkheads abreast barbettes. Main belt thickness was 100mm on short parts at ship ends. Main deck was connected with lower edge of main belt by slopes.

Modernizations

1917 - 1918, both: - 8 x 1 - 76/50, 2 x 1 - 47/50; + 6 x 1 - 76/40 A1917

(1937 - 6.1938, Arsenale di La Spezia), San Giorgio: Boilers were reduced to 8 and converted to oil only (18200hp, 18.6kts, 1300t of oil), two funnels were removed; - 10 x 1 - 76/50, 6 x 1 - 76/40, 2 x 1 - 6.5/80, 3 - 450 TT; + 4 x 2 - 100/47 OTO 1928, 2 x 2 - 13.2/76; displacement was 9470 / 11500t.

early 1940, San Giorgio: + 1 x 2 - 100/47 OTO 1928, 6 x 2 - 20/65 Breda 1935, 5 x 2 - 13.2/76

Naval service

San Giorgio was hard damaged at Tobruk 22.1.1941 by British deck aircraft (Eagle air group) and scuttled by crew at shallow water.

San Marco in 1931-1935 was converted to radio-controlled target ship for gunnery training (8600/8966t, 13000hp, 18kts), in September, 1943 she was captured by German troops and scuttled by them at Spezia in 1944.