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REGIA MARINA / ITALIAN NAVY (ITALY)

CRUISERS

"Condottieri 4th group" type light cruisers (1935-1936)

Eugenio di Savoia 1940

Emanuele Filiberto Duca d`Aosta 1942

Name No Builder Laid down Launched Comp Fate
Emanuele Filiberto Duca d`Aosta   OTO, Livorno 29/10/1932 22/4/1934 13/7/1935 to Soviet Union 3/1949 ( <Kerch>)
Eugenio di Savoia   Ansaldo, Genoa 6/7/1933 16/3/1935 16/1/1936 to Greece 7/1951 (Helle)

 

Displacement standard, t

Duca d`Aosta: 8317

di Savoia: 8610

Displacement full, t

Duca d`Aosta: 10374

di Savoia: 10672

Length, m

171.8 pp 186.9 oa

Breadth, m

17.5

Draught, m

6.50 mean deep

No of shafts

2

Machinery

Duca d`Aosta: Parsons geared steam turbines, 6 Thornycroft boilers

di Savoia: Beluzzo geared steam turbines, 6 Yarrow boilers

Power, h. p.

110000

Max speed, kts

36.5

Fuel, t

oil 1653

Endurance, nm(kts) 3900(14)

Armour, mm

belt: 70 + 35, bulkheads: 50 - 30, decks: 35 - 30, barbettes: 70 - 50, turrets: 90, CT: 100 - 25, communication tube: 30 - 20

Armament

4 x 2 - 152/53 OTO 1929, 3 x 2 - 100/47 OTO 1928, 4 x 2 - 37/54 Breda 1932, 6 x 2 - 13.2/76, 2 x 3 - 533 TT, 1 catapult, 2 seaplanes (Cant.25), 2 DCT (12), 112 - 146 mines

Complement

578 - 694

Ship project history: The ships of the 1931-1933 program were built on Montecuccoli design modified towards the further strengthening of protection. Increased to 1700t armour weight has gone on a thickening of a belt to 70mm, and than internal armoured bulkhead to 35mm, however horizontal protection became thicker on 5mm (35mm amidships and 30mm at shipends). As consequence, the same lack, as on predecessors, too narrow immunity zone under 152mm guns fire and absence that one from 203mm guns was generic in the new ships.

Higher armour weight has led to displacement growth (approximately on 1000t). For speed preservation at level 36-37kts machinery power was raised to 110000hp. Thus in its placing there were some changes: on previous "Condottieri" of first three series two third of boilers (4) were placed in fore group, and third (2 boilers) in aft; accordingly the fore funnel in which there were smoke ducts of four boilers, was notably more widely, than the aft one. On 4th "Condottieri" series boilers were placed more even: on three on each funnel of the identical size. Each boiler was positioned in a separate compartment.

Both cruisers have exceeded a contract trial speed (as well as predecessors: at the displacement close to standard, and super-designed machinery power), real sea speed made nearby 34kts.

Ship protection: Main 70mm belt extended up to main deck between center of "A" and fore side "X" barbettes, 30mm longitudinal splinter bulkhead (35mm abreast magazines) placed inside hull in 2m from side. The belt was closed by 50mm upper and 30mm lower bulkheads. All side above the main belt and the platform between lower edge of the belt and longitudinal splinter bulkhead had 20mm thickness. Flat 35mm main deck connected with upper edge of main belt, main deck outside citadel had 30-mm thickness. Barbettes had 70mm protection above weather decks, 60mm between weather and main decks and 50mm below main deck. CT had 100mm sides, 30mm roof and 25mm deck, rest of tower superstructure had 50-40mm protection.

Modernizations: mid-1943, Emanuele Filiberto Duca d`Aosta: + FuMo 39 radar

8/1943, Eugenio di Savoia: + EC.3/ter radar

Autumn 1943, both: - 6 x 2 - 13.2/76; + 10 x 1 - 20/70 Oerlikon

1944, both: - 2 x 3 - 533 TT, catapult with seaplanes; + 2 x 1 - 20/70 Oerlikon

Summer 1944, Emanuele Filiberto Duca d`Aosta: - FuMo39 radar; + type 286 radar

early 1945, Emanuele Filiberto Duca d`Aosta: - type 286 radar

Naval service: Eugenio di Savoia 4/12/1942 was damaged at Naples by bombs of American aircraft and has failed till spring of 1943.

Eugenio di Savoia pre-war

 

Ivan Gogin, 2009-15