WesWorld

Actively serving Light Cruisers of the Marina Militare.

Ships in Class
Sant' Achilleo Laid down 1928, reconstructed 1942
San Bacco Laid down 1928, reconstructed 1942


Picture is pre-refit. By RA.

Displacement:
7,931 t light; 8,392 t standard; 9,374 t normal; 10,160 t full load

Dimensions: Length overall / water x beam x draught
610.88 ft / 590.55 ft x 60.70 ft x 20.34 ft (normal load)
186.20 m / 180.00 m x 18.50 m x 6.20 m

Armament:
8 - 5.98" / 152 mm guns (4x2 guns), 99.21lbs / 45.00kg shells, 1942 Model
Dual purpose guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
20 - 2.99" / 76.0 mm guns (10x2 guns), 14.86lbs / 6.74kg shells, 1942 Model
Automatic rapid fire guns in deck mounts with hoists
on side, all amidships, 4 raised mounts - superfiring
12 - 1.46" / 37.0 mm guns (4x3 guns), 1.55lbs / 0.70kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread
12 - 0.98" / 25.0 mm guns in single mounts, 0.48lbs / 0.22kg shells, 1942 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 1,115 lbs / 506 kg
Shells per gun, main battery: 400

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.72" / 120 mm 393.70 ft / 120.00 m 9.84 ft / 3.00 m
Ends: Unarmoured
Main Belt covers 103 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.31" / 135 mm 2.76" / 70 mm 3.94" / 100 mm

- Armour deck: 1.57" / 40 mm, Conning tower: 5.91" / 150 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 84,000 shp / 62,664 Kw = 32.44 kts
Range 4,500nm at 20.00 kts
Bunker at max displacement = 1,767 tons

Complement:
476 - 619

Cost:
£2.715 million / $10.860 million

Distribution of weights at normal displacement:
Armament: 150 tons, 1.6 %
Armour: 1,777 tons, 19.0 %
- Belts: 759 tons, 8.1 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 295 tons, 3.2 %
- Armour Deck: 666 tons, 7.1 %
- Conning Tower: 57 tons, 0.6 %
Machinery: 2,194 tons, 23.4 %
Hull, fittings & equipment: 3,484 tons, 37.2 %
Fuel, ammunition & stores: 1,443 tons, 15.4 %
Miscellaneous weights: 325 tons, 3.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
11,094 lbs / 5,032 Kg = 103.5 x 6.0 " / 152 mm shells or 1.6 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 3.1 ft / 0.9 m
Roll period: 14.6 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.25
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.450
Length to Beam Ratio: 9.73 : 1
'Natural speed' for length: 24.30 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 59
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 29.53 ft / 9.00 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (37 %): 22.97 ft / 7.00 m (13.12 ft / 4.00 m aft of break)
- Quarterdeck (15 %): 13.12 ft / 4.00 m
- Stern: 13.12 ft / 4.00 m
- Average freeboard: 17.29 ft / 5.27 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 94.6 %
- Above water (accommodation/working, high = better): 143.6 %
Waterplane Area: 22,863 Square feet or 2,124 Square metres
Displacement factor (Displacement / loading): 122 %
Structure weight / hull surface area: 98 lbs/sq ft or 477 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.15
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

50t RaA.6 Air Search radar
20t RaA.5 Air Search radar
20t RaS.4 Surface Search radar
30t 2 x GDR1R FC Systems
30t 6 x GDR5 FC Systems
40t Improved 152mm mountings (5t per gun)
50t Improved AA mountings
65t Enhanced Command Facilities (Includes Fleet-level AA screen directors and dedicated communication equipment)
15t Emergency Diesel
5t Construction Reserve

Ships in Class
San Calepodio Layed down 1932, reconstructed 1943
San Calimero Layed down 1932, reconstructed 1943


Picture is pre-refit. By RA.

Displacement:
6,905 t light; 7,337 t standard; 8,751 t normal; 9,882 t full load

Dimensions: Length overall / water x beam x draught
579.02 ft / 557.74 ft x 58.73 ft x 18.70 ft (normal load)
176.48 m / 170.00 m x 17.90 m x 5.70 m

Armament:
8 - 5.98" / 152 mm guns (4x2 guns), 99.21lbs / 45.00kg shells, 1943 Model
Dual purpose guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
16 - 2.99" / 76.0 mm guns (8x2 guns), 14.86lbs / 6.74kg shells, 1943 Model
Automatic rapid fire guns in deck mounts with hoists
on side, all amidships, 4 raised mounts - superfiring
12 - 1.46" / 37.0 mm guns (6x2 guns), 1.55lbs / 0.70kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
12 - 0.98" / 25.0 mm guns in single mounts, 0.48lbs / 0.22kg shells, 1943 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 1,056 lbs / 479 kg
Shells per gun, main battery: 400

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.76" / 70 mm 360.89 ft / 110.00 m 11.48 ft / 3.50 m
Ends: Unarmoured
Upper: 1.18" / 30 mm 229.66 ft / 70.00 m 8.20 ft / 2.50 m
Main Belt covers 100 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.31" / 135 mm 2.76" / 70 mm 2.76" / 70 mm
2nd: 1.18" / 30 mm 0.79" / 20 mm 0.79" / 20 mm
3rd: 0.39" / 10 mm 0.39" / 10 mm -
4th: 0.39" / 10 mm - -

- Armour deck: 1.57" / 40 mm, Conning tower: 2.76" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 62,000 shp / 46,252 Kw = 31.11 kts
Range 4,200nm at 25.00 kts
Bunker at max displacement = 2,545 tons

Complement:
452 - 588

Cost:
£2.661 million / $10.644 million

Distribution of weights at normal displacement:
Armament: 142 tons, 1.6 %
Armour: 1,536 tons, 17.6 %
- Belts: 579 tons, 6.6 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 271 tons, 3.1 %
- Armour Deck: 661 tons, 7.6 %
- Conning Tower: 25 tons, 0.3 %
Machinery: 1,601 tons, 18.3 %
Hull, fittings & equipment: 3,150 tons, 36.0 %
Fuel, ammunition & stores: 1,845 tons, 21.1 %
Miscellaneous weights: 475 tons, 5.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
12,567 lbs / 5,700 Kg = 117.3 x 6.0 " / 152 mm shells or 1.9 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 2.9 ft / 0.9 m
Roll period: 14.4 seconds
Steadiness - As gun platform (Average = 50 %): 57 %
- Recoil effect (Restricted arc if above 1.00): 0.26
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.500
Length to Beam Ratio: 9.50 : 1
'Natural speed' for length: 27.06 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 57
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.17 ft / 9.50 m
- Forecastle (24 %): 21.33 ft / 6.50 m
- Mid (40 %): 21.33 ft / 6.50 m (13.12 ft / 4.00 m aft of break)
- Quarterdeck (22 %): 13.12 ft / 4.00 m
- Stern: 13.12 ft / 4.00 m
- Average freeboard: 17.35 ft / 5.29 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 80.5 %
- Above water (accommodation/working, high = better): 148.8 %
Waterplane Area: 22,695 Square feet or 2,108 Square metres
Displacement factor (Displacement / loading): 138 %
Structure weight / hull surface area: 93 lbs/sq ft or 452 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.17
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent

50t RaA.6 Air Search radar
20t RaA.5 Air Search radar
20t RaS.4 Surface Search radar
30t 2 x GDR1R FC Systems
30t 6 x GDR5 FC Systems
40t Improved 152mm mountings (5t per gun)
50t Improved AA mountings
45t Enhanced Command Facilities
20t Recon Management and intelligence distribution equipment
75t Three Helicopters/Auto-gyros
50t Command, Control, and Support assets for Helicopters/Auto-gyros
25t Structural accommodations/reinforcement for hanger and landing deck.
15t Emergency Diesel
5t Construction Reserve

Duca degli Abruzzi Class

Ships in Class
Duca degli Abruzzi Layed down 1934
Duca d'Aosta Layed down 1934



Displacement:
8,095 t light; 8,398 t standard; 9,777 t normal; 10,880 t full load

Dimensions: Length overall / water x beam x draught
579.02 ft / 557.74 ft x 65.62 ft x 18.70 ft (normal load)
176.48 m / 170.00 m x 20.00 m x 5.70 m

Armament:
8 - 5.98" / 152 mm guns (4x2 guns), 99.21lbs / 45.00kg shells, 1934 Model
Dual purpose guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
28 - 1.85" / 47.0 mm guns (7x4 guns), 3.86lbs / 1.75kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, all forward, all raised mounts - superfiring
12 - 0.98" / 25.0 mm guns (6x2 guns), 0.53lbs / 0.24kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, all forward
Weight of broadside 908 lbs / 412 kg
Shells per gun, main battery: 200
16 - 23.6" / 600 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.94" / 100 mm 328.08 ft / 100.00 m 10.47 ft / 3.19 m
Ends: Unarmoured
Upper: 0.79" / 20 mm 65.62 ft / 20.00 m 8.20 ft / 2.50 m
Main Belt covers 90 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.31" / 135 mm 2.76" / 70 mm 3.94" / 100 mm
2nd: 0.39" / 10 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

- Armour deck: 2.36" / 60 mm, Conning tower: 5.31" / 135 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 66,000 shp / 49,236 Kw = 31.02 kts
Range 3,500nm at 25.00 kts
Bunker at max displacement = 2,482 tons

Complement:
491 - 639

Cost:
£3.186 million / $12.745 million

Distribution of weights at normal displacement:
Armament: 119 tons, 1.2 %
Armour: 2,069 tons, 21.2 %
- Belts: 612 tons, 6.3 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 296 tons, 3.0 %
- Armour Deck: 1,108 tons, 11.3 %
- Conning Tower: 52 tons, 0.5 %
Machinery: 1,899 tons, 19.4 %
Hull, fittings & equipment: 3,608 tons, 36.9 %
Fuel, ammunition & stores: 1,682 tons, 17.2 %
Miscellaneous weights: 400 tons, 4.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
15,837 lbs / 7,184 Kg = 147.8 x 6.0 " / 152 mm shells or 2.2 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 3.3 ft / 1.0 m
Roll period: 15.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.21
Seaboat quality (Average = 1.00): 1.04

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.500
Length to Beam Ratio: 8.50 : 1
'Natural speed' for length: 27.31 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 67
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.17 ft / 9.50 m
- Forecastle (26 %): 21.33 ft / 6.50 m
- Mid (60 %): 21.33 ft / 6.50 m (13.12 ft / 4.00 m aft of break)
- Quarterdeck (25 %): 13.12 ft / 4.00 m
- Stern: 13.12 ft / 4.00 m
- Average freeboard: 19.07 ft / 5.81 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 77.9 %
- Above water (accommodation/working, high = better): 114.5 %
Waterplane Area: 25,357 Square feet or 2,356 Square metres
Displacement factor (Displacement / loading): 135 %
Structure weight / hull surface area: 98 lbs/sq ft or 477 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.33
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

48t = 16x600mm torpedoes
40t = 25mm deck over torpedoes

Belt = 100mm@20degrees = 3.00 eff height

100 x 50kg AP shells
100 x 40kg MTF shells

Orignialy by RA

Ships in Class
Alberto da Giussano Laid down 1925, reconstructed 1934



Displacement:
5,444 t light; 5,739 t standard; 6,664 t normal; 7,404 t full load

Dimensions: Length overall / water x beam x draught
550.44 ft / 524.93 ft x 52.49 ft x 19.69 ft (normal load)
167.77 m / 160.00 m x 16.00 m x 6.00 m

Armament:
8 - 3.94" / 100 mm guns (4x2 guns), 33.07lbs / 15.00kg shells, 1934 Model
Anti-aircraft guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 3.94" / 100 mm guns (4x2 guns), 33.07lbs / 15.00kg shells, 1934 Model
Anti-aircraft guns in deck mounts with hoists
on side ends, evenly spread, 2 raised mounts - superfiring
20 - 1.85" / 47.0 mm guns (5x4 guns), 3.86lbs / 1.75kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, all amidships, 4 raised guns - superfiring
4 - 1.46" / 37.0 mm guns in single mounts, 1.83lbs / 0.83kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on centreline, all forward
Weight of broadside 614 lbs / 278 kg
Shells per gun, main battery: 400

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.76" / 70 mm 448.72 ft / 136.77 m 8.69 ft / 2.65 m
Ends: Unarmoured
Main Belt covers 132 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm 0.79" / 20 mm -
2nd: 1.18" / 30 mm 0.79" / 20 mm -
3rd: 0.39" / 10 mm 0.39" / 10 mm -

- Armour deck: 1.38" / 35 mm, Conning tower: 2.76" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 62,000 shp / 46,252 Kw = 32.63 kts
Range 3,000nm at 25.00 kts
Bunker at max displacement = 1,665 tons

Complement:
368 - 479

Cost:
£1.633 million / $6.530 million

Distribution of weights at normal displacement:
Armament: 70 tons, 1.0 %
Armour: 951 tons, 14.3 %
- Belts: 428 tons, 6.4 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 44 tons, 0.7 %
- Armour Deck: 458 tons, 6.9 %
- Conning Tower: 21 tons, 0.3 %
Machinery: 1,784 tons, 26.8 %
Hull, fittings & equipment: 2,340 tons, 35.1 %
Fuel, ammunition & stores: 1,220 tons, 18.3 %
Miscellaneous weights: 300 tons, 4.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7,851 lbs / 3,561 Kg = 257.3 x 3.9 " / 100 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.32
Metacentric height 3.1 ft / 0.9 m
Roll period: 12.5 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.20
Seaboat quality (Average = 1.00): 1.22

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.430
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 26.38 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 41
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 32.81 ft / 10.00 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (40 %): 22.97 ft / 7.00 m (14.76 ft / 4.50 m aft of break)
- Quarterdeck (15 %): 14.76 ft / 4.50 m
- Stern: 14.76 ft / 4.50 m
- Average freeboard: 18.83 ft / 5.74 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 102.0 %
- Above water (accommodation/working, high = better): 160.8 %
Waterplane Area: 17,967 Square feet or 1,669 Square metres
Displacement factor (Displacement / loading): 124 %
Structure weight / hull surface area: 76 lbs/sq ft or 373 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.86
- Longitudinal: 1.66
- Overall: 0.92
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily

Miscellaneous weight to be defined.
Orignialy by RA

Ships in Class
Ischia Laid down 1935
Gorgona Laid down 1935
Marittimo Laid down 1935
Tino Laid down 1935



Displacement:
4,581 t light; 4,780 t standard; 5,619 t normal; 6,290 t full load

Dimensions: Length overall / water x beam x draught
513.78 ft / 492.13 ft x 49.21 ft x 18.04 ft (normal load)
156.60 m / 150.00 m x 15.00 m x 5.50 m

Armament:
6 - 5.98" / 152 mm guns (3x2 guns), 104.72lbs / 47.50kg shells, 1935 Model
Dual purpose guns in turrets (on barbettes)
on centreline ends, majority aft, 1 raised mount aft - superfiring
24 - 1.85" / 47.0 mm guns (6x4 guns), 3.86lbs / 1.75kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side, all amidships, 2 raised mounts - superfiring
2 - 0.98" / 25.0 mm guns (1x2 guns), 0.55lbs / 0.25kg shells, 1935 Model
Anti-aircraft guns in deck mount
on side aft
Weight of broadside 722 lbs / 328 kg
Shells per gun, main battery: 200
8 - 23.6" / 600 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 10.6" / 268 mm* 1.97" / 50 mm 1.97" / 50 mm
2nd: 0.39" / 10 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

- Armour deck: 1.57" / 40 mm, Conning tower: 2.76" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 52,000 shp / 38,792 Kw = 31.77 kts
Range 3,000nm at 25.00 kts
Bunker at max displacement = 1,511 tons

Complement:
323 - 421

Cost:
£2.254 million / $9.016 million

Distribution of weights at normal displacement:
Armament: 90 tons, 1.6 %
Armour: 667 tons, 11.9 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 181 tons, 3.2 %
- Armour Deck: 468 tons, 8.3 %
- Conning Tower: 19 tons, 0.3 %
Machinery: 1,477 tons, 26.3 %
Hull, fittings & equipment: 2,247 tons, 40.0 %
Fuel, ammunition & stores: 1,037 tons, 18.5 %
Miscellaneous weights: 100 tons, 1.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
6,804 lbs / 3,086 Kg = 63.5 x 6.0 " / 152 mm shells or 1.2 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 2.1 ft / 0.6 m
Roll period: 14.3 seconds
Steadiness - As gun platform (Average = 50 %): 69 %
- Recoil effect (Restricted arc if above 1.00): 0.40
Seaboat quality (Average = 1.00): 1.17

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.450
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 25.47 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 59
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.82 ft / 9.70 m
- Forecastle (20 %): 21.98 ft / 6.70 m
- Mid (46 %): 21.98 ft / 6.70 m (13.78 ft / 4.20 m aft of break)
- Quarterdeck (15 %): 13.78 ft / 4.20 m
- Stern: 13.78 ft / 4.20 m
- Average freeboard: 18.34 ft / 5.59 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 100.5 %
- Above water (accommodation/working, high = better): 114.9 %
Waterplane Area: 16,047 Square feet or 1,491 Square metres
Displacement factor (Displacement / loading): 127 %
Structure weight / hull surface area: 81 lbs/sq ft or 395 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 1.88
- Overall: 0.97
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate

10t = EC.1 radar
24t = 8x600mm TT
7t = Scaricabombe
9t = D3 sonar
10t = 2x Diesel gensets

20tons per 152mm turret extra = HA loading etc

*Turret face armour = 70mm

Orignialy by RA

Ships in Class
Lombardia Laid down 1936
Trentino Laid down 1936
Piedmonte Laid down 1937
Liguria Laid down 1937


Drawing by RA

Displacement:
9,910 t light; 10,386 t standard; 11,892 t normal; 13,096 t full load

Dimensions: Length overall / water x beam x draught
649.24 ft / 623.36 ft x 65.94 ft x 19.69 ft (normal load)
197.89 m / 190.00 m x 20.10 m x 6.00 m

Armament:
16 - 5.98" / 152 mm guns (4x4 guns), 104.72lbs / 47.50kg shells, 1936 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 3.94" / 100 mm guns (4x2 guns), 33.07lbs / 15.00kg shells, 1936 Model
Anti-aircraft guns in deck mounts with hoists
on side, all amidships, all raised mounts - superfiring
24 - 1.85" / 47.0 mm guns (6x4 guns), 3.31lbs / 1.50kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 2 raised mounts
20 - 0.98" / 25.0 mm guns (10x2 guns), 0.48lbs / 0.22kg shells, 1936 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 2,029 lbs / 920 kg
Shells per gun, main battery: 200

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.72" / 120 mm 393.70 ft / 120.00 m 9.84 ft / 3.00 m
Ends: Unarmoured
Main Belt covers 97 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.31" / 135 mm 2.76" / 70 mm 3.94" / 100 mm
2nd: 1.18" / 30 mm 0.79" / 20 mm -
3rd: 0.39" / 10 mm 0.39" / 10 mm -
4th: 0.39" / 10 mm - -

- Armour deck: 1.40" / 36 mm, Conning tower: 2.76" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 80,000 shp / 59,680 Kw = 31.88 kts
Range 3,500nm at 25.00 kts
Bunker at max displacement = 2,710 tons

Complement:
569 - 740

Cost:
£4.617 million / $18.470 million

Distribution of weights at normal displacement:
Armament: 256 tons, 2.1 %
Armour: 2,013 tons, 16.9 %
- Belts: 770 tons, 6.5 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 466 tons, 3.9 %
- Armour Deck: 746 tons, 6.3 %
- Conning Tower: 31 tons, 0.3 %
Machinery: 2,245 tons, 18.9 %
Hull, fittings & equipment: 5,197 tons, 43.7 %
Fuel, ammunition & stores: 1,982 tons, 16.7 %
Miscellaneous weights: 200 tons, 1.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
19,491 lbs / 8,841 Kg = 181.9 x 6.0 " / 152 mm shells or 2.3 torpedoes
Stability (Unstable if below 1.00): 1.16
Metacentric height 3.5 ft / 1.1 m
Roll period: 14.7 seconds
Steadiness - As gun platform (Average = 50 %): 61 %
- Recoil effect (Restricted arc if above 1.00): 0.44
Seaboat quality (Average = 1.00): 1.21

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.514
Length to Beam Ratio: 9.45 : 1
'Natural speed' for length: 28.57 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 33.46 ft / 10.20 m
- Forecastle (20 %): 23.62 ft / 7.20 m
- Mid (50 %): 20.34 ft / 6.20 m
- Quarterdeck (15 %): 20.34 ft / 6.20 m
- Stern: 20.34 ft / 6.20 m
- Average freeboard: 22.28 ft / 6.79 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 80.9 %
- Above water (accommodation/working, high = better): 203.9 %
Waterplane Area: 28,869 Square feet or 2,682 Square metres
Displacement factor (Displacement / loading): 136 %
Structure weight / hull surface area: 118 lbs/sq ft or 574 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.02
- Longitudinal: 1.52
- Overall: 1.06
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily

50t = radars
100t = aircrafts and catapult

Ships in Class
Genoa Layed down 1942
Milian Layed down 1942
Sicily Layed down 1943
Sardinia Layed down 1943

Displacement:
9,750 t light; 10,426 t standard; 11,850 t normal; 12,989 t full load

Dimensions: Length overall / water x beam x draught
649.24 ft / 623.36 ft x 65.94 ft x 19.69 ft (normal load)
197.89 m / 190.00 m x 20.10 m x 6.00 m

Armament:
16 - 5.98" / 152 mm guns (4x4 guns), 99.21lbs / 45.00kg shells, 1942 Model
Dual purpose guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
16 - 2.99" / 76.0 mm guns (8x2 guns), 14.26lbs / 6.47kg shells, 1942 Model
Automatic rapid fire guns in deck mounts with hoists
on side, all amidships, 4 raised mounts - superfiring
24 - 1.46" / 37.0 mm guns (6x4 guns), 1.55lbs / 0.70kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
20 - 0.98" / 25.0 mm guns (10x2 guns), 0.48lbs / 0.22kg shells, 1942 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 1,862 lbs / 845 kg
Shells per gun, main battery: 400

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.72" / 120 mm 393.70 ft / 120.00 m 9.84 ft / 3.00 m
Ends: Unarmoured
Main Belt covers 97 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.31" / 135 mm 2.76" / 70 mm 3.94" / 100 mm
2nd: 1.18" / 30 mm 0.79" / 20 mm -
3rd: 0.39" / 10 mm 0.39" / 10 mm -
4th: 0.39" / 10 mm - -

- Armour deck: 1.97" / 50 mm, Conning tower: 2.76" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 80,000 shp / 59,680 Kw = 31.90 kts
Range 3,500nm at 25.00 kts
Bunker at max displacement = 2,563 tons

Complement:
567 - 738

Cost:
£5.382 million / $21.528 million

Distribution of weights at normal displacement:
Armament: 252 tons, 2.1 %
Armour: 2,323 tons, 19.6 %
- Belts: 770 tons, 6.5 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 473 tons, 4.0 %
- Armour Deck: 1,050 tons, 8.9 %
- Conning Tower: 31 tons, 0.3 %
Machinery: 2,090 tons, 17.6 %
Hull, fittings & equipment: 4,836 tons, 40.8 %
Fuel, ammunition & stores: 2,100 tons, 17.7 %
Miscellaneous weights: 250 tons, 2.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
19,461 lbs / 8,827 Kg = 181.6 x 6.0 " / 152 mm shells or 2.3 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 3.3 ft / 1.0 m
Roll period: 15.3 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.45
Seaboat quality (Average = 1.00): 1.23

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.513
Length to Beam Ratio: 9.45 : 1
'Natural speed' for length: 28.58 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 57
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 33.46 ft / 10.20 m
- Forecastle (20 %): 23.62 ft / 7.20 m
- Mid (50 %): 20.34 ft / 6.20 m
- Quarterdeck (15 %): 20.34 ft / 6.20 m
- Stern: 20.34 ft / 6.20 m
- Average freeboard: 22.28 ft / 6.79 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 79.1 %
- Above water (accommodation/working, high = better): 204.3 %
Waterplane Area: 28,819 Square feet or 2,677 Square metres
Displacement factor (Displacement / loading): 135 %
Structure weight / hull surface area: 110 lbs/sq ft or 535 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.42
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

50t RaA.6 Air Search radar
20t RaA.5 Air Search radar
20t RaS.4 Surface Search radar
30t 2 x GDR1R FC Systems
30t 6 x GDR5 FC Systems
80t Improved 152mm mountings (5t per gun)
50t Improved AA mountings
15t Emergency Diesel
5t Construction Reserve