San Marco 1911
San Giorgio 1940
San Giorgio 1940
| 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 |
|
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 |
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.
San Marco 1910
San Giorgio 1940
© Ivan Gogin, 2009-14