WesWorld

Actively serving aviation cruisers of the Marina Militare.

Ships in Class
Francesco Ferrucio Layed down 1925, reconstructed 1943

Displacement:
6,427 t light; 6,701 t standard; 7,767 t normal; 8,621 t full load

Dimensions: Length overall / water x beam x draught
539.26 ft / 524.93 ft x 52.49 ft (Bulges 59.06 ft) x 19.49 ft (normal load)
164.37 m / 160.00 m x 16.00 m (Bulges 18.00 m) x 5.94 m

Armament:
4 - 5.98" / 152 mm guns (2x2 guns), 99.21lbs / 45.00kg shells, 1943 Model
Dual purpose guns in turrets (on barbettes)
on centreline, all forward, 1 raised mount - superfiring
4 - 2.99" / 76.0 mm guns in single mounts, 14.26lbs / 6.47kg shells, 1943 Model
Automatic rapid fire guns in deck mounts with hoists
on side, all forward
16 - 1.46" / 37.0 mm guns (4x4 guns), 1.55lbs / 0.70kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side, all aft
20 - 0.98" / 25.0 mm guns (10x2 guns), 0.48lbs / 0.22kg shells, 1943 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 488 lbs / 221 kg
Shells per gun, main battery: 400

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.76" / 70 mm 341.21 ft / 104.00 m 8.69 ft / 2.65 m
Ends: 0.98" / 25 mm 183.69 ft / 55.99 m 8.69 ft / 2.65 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 - -
4th: 0.39" / 10 mm - -

- Armour deck: 1.18" / 30 mm, Conning tower: 2.76" / 70 mm

Machinery:
Oil fired boilers, steam turbines plus diesel motors,
Electric motors, 2 shafts, 66,000 shp / 49,236 Kw = 30.98 kts
Range 5,500nm at 20.00 kts
Bunker at max displacement = 1,920 tons

Complement:
413 - 537

Cost:
£1.698 million / $6.793 million

Distribution of weights at normal displacement:
Armament: 66 tons, 0.8 %
Armour: 942 tons, 12.1 %
- Belts: 398 tons, 5.1 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 137 tons, 1.8 %
- Armour Deck: 384 tons, 4.9 %
- Conning Tower: 23 tons, 0.3 %
Machinery: 1,705 tons, 21.9 %
Hull, fittings & equipment: 2,689 tons, 34.6 %
Fuel, ammunition & stores: 1,341 tons, 17.3 %
Miscellaneous weights: 1,025 tons, 13.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
9,542 lbs / 4,328 Kg = 89.1 x 6.0 " / 152 mm shells or 1.5 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 2.6 ft / 0.8 m
Roll period: 15.4 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.12
Seaboat quality (Average = 1.00): 1.00

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.450
Length to Beam Ratio: 8.89 : 1
'Natural speed' for length: 22.91 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.33 ft / 6.50 m
- Forecastle (12 %): 19.69 ft / 6.00 m
- Mid (70 %): 19.69 ft / 6.00 m (9.84 ft / 3.00 m aft of break)
- Quarterdeck (12 %): 9.84 ft / 3.00 m
- Stern: 9.84 ft / 3.00 m
- Average freeboard: 16.81 ft / 5.12 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 93.6 %
- Above water (accommodation/working, high = better): 140.7 %
Waterplane Area: 17,577 Square feet or 1,633 Square metres
Displacement factor (Displacement / loading): 132 %
Structure weight / hull surface area: 90 lbs/sq ft or 442 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.32
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

6 Cierva R1 ASW/Rec (600t)
2 Crated Spare Cierva R1 and maintenance facilies (50t)
100t Aircraft operations center
50t RaA.6 Air Search radar
20t RaA.5 Air Search radar
20t RaS.4 Surface Search radar x2
30t 2 x GDR1R FC Systems
30t 6 x GDR5 FC Systems
Inert gas AVGAS Shielding (50t)
Seaplane Handeling facilites (50t)
Flag Facilites (50t)
Improved Crew facilities (100t)
Reserve (25t)