These ships were comissioned into the RM last quarter. They are now present with the Italian East Africa naval squadron. She looks good. Unfortunately she is 6tons over the limit for destroyers
Guns are 130mm/50 in duple turrets with 50 degree elevation. RoF should be around 10-12rpm
Varese, Italian Light Cruiser laid down 1921
Displacement:
1,928 t light; 2,006 t standard; 2,244 t normal; 2,425 t full load
Loading submergence 225 tons/feet
Dimensions:
370.00 ft x 38.00 ft x 13.30 ft (normal load)
112.78 m x 11.58 m x 4.05 m
Armament:
6 - 5.12" / 130 mm guns (3 Main turrets x 2 guns, 1 superfiring turret)
Superfiring turret is aft
Aft turrets separated by engine room
6 - 0.79" / 20 mm AA guns
Weight of broadside 404 lbs / 183 kg
6 - 21.0" / 533.4 mm above water torpedoes
Armour:
Main turrets 1.00" / 25 mm
Conning tower 3.00" / 76 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 42,671 shp / 31,833 Kw = 32.50 kts
Range 10,000nm at 10.00 kts
Complement:
163 - 211
Cost:
£0.693 million / $2.771 million
Distribution of weights at normal displacement:
Armament: 50 tons, 2.2 %
Armour: 57 tons, 2.5 %
Belts: 0 tons, 0.0 %, Armament: 46 tons, 2.0 %, Armour Deck: 0 tons, 0.0 %
Conning Tower: 11 tons, 0.5 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 1,159 tons, 51.7 %
Hull, fittings & equipment: 611 tons, 27.2 %
Fuel, ammunition & stores: 316 tons, 14.1 %
Miscellaneous weights: 50 tons, 2.2 %
Metacentric height 1.6
Remarks:
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.19
Shellfire needed to sink: 500 lbs / 227 Kg = 7.5 x 5.1 " / 130 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 0.3
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 70 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.56
Relative quality as seaboat: 1.05
Hull form characteristics:
Block coefficient: 0.420
Sharpness coefficient: 0.31
Hull speed coefficient 'M': 8.64
'Natural speed' for length: 19.24 kts
Power going to wave formation at top speed: 66 %
Trim: 67
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)
Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 186.3 %
Relative accommodation and working space: 103.8 %
(Average = 100%)
Displacement factor: 65 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.50
(Structure weight / hull surface area: 40 lbs / square foot or 197 Kg / square metre)
Relative longitudinal hull strength: 1.23
(for 16.00 ft / 4.88 m average freeboard, freeboard adjustment 4.77 ft)
Relative composite hull strength: 0.54