RM Alberto Di Giussano (CL-1931 (CLA-1938))

 

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The so-called high speed Italian light cruisers of the Condottieri types were an expensive failure when compared to the light cruisers of Italy's contemporaries in France and the Commonwealth. When the ships were first put through their trials they were credited with speeds over 40 knots and even in general service at light displacement they were credited with 37 knots. Unfortunately at full load displacement the ships struggled to make 33 knots. This gave the ships no margin over the possible enemy ships from the Commonwealth that were designed to make 32 knots at full load displacement, which a lot of the ships exceeded when neccessary. As more and more new equipment was fitted to the ships they got slower and slower. (In the real world the HMAS Sydney catching and sinking the Bartolomeo Colleoni was a shock to the Italian Navy which had thought their cruisers had enough of a speed advantage never to be caught).

The Italians did recognise the problems and their Condottieri type cruisers from batch 3 onwards were given better protection and more sustainable propulsion systems to keep the ships at their seagoing speeds. The final type, Giuseppe Garibaldi were perhaps some of the best light cruisers built by any nation, and showed it by serving over 30 years in times of war and peace.

The thought with the group 1 & 2 Condottieri types was to convert them to Anti-aircraft cruisers where they would be acting with other fleet units which would screen them from surface action while the ships would cover the other fleet units from aircraft. To this end the ships would have their twin 6" replaced with the triple 5.3" dual purpose turrets with another pair of twin 5.3" would replace the centrally mounted 3.9". This would give the ships 14 barrels capable of firing to one side or the other with 4 AA directors to control them. A lot od light AA weapons in 37 and 20mm sizes were fitted for close range defence. A triple set of torpedo tubes on each beam rounded out a useful armament that certainly made them equivalent to their contemporary conversions and new builds in other Navies (Anchorage, Dupuy de Lome, Dido).

 

Displacement 6,500 tons std 7,200 tons full load
Length 555 ft
Breadth 51 ft
Draught 18 ft
Machinery 2 shaft steam turbines, 80,000shp
Speed 37 knots (in light conditions) 32-33 knots sea speed
Range 4000 miles at 18 knots
Armour 1" side, 3/4" deck, 1" turrets
Armament Original

8 x 6" (4x2)

6 x 3.9" (3x2)

4 x 37mm (4x1)

8 x 20mm (1x4 4x1)

As AA Cruiser

16 x 5.3" (4x3 2x2)

14 x 37mm (14x1)

16 x 20mm (8x2)

 

Aircraft nil
Torpedoes 4 x 21" (2x2) orig 6 x 21" (2x3) as CLA
Complement 510
Notes
RM Alberto da Giussano

RM Alberico da Barbiano

RM Bartolomeo Colleoni

RM Giovanni delle Bande Nere

RM Luigi Cadorna

RM Armando Diaz

 

 

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