- 130mm/50 guns in new design mounts allowing RoF to be increased to about 10rpm.
- 65mm/64 semi-automatic guns in single mounts with 20rpm RoF.
- The usual 37mm/54 AA guns. 60/90/120 rpm RoF.
- New aircraft, 24x Fiat CR.20 and 48x Fiat BR.2, both navalised and thus with slightly lower performance.
- Two hangars. Upper hangar is open and unarmoured. Lower hangar is closed, and armoured with a 100mm thick belt at the side. Deck armour is roof of lower hangar, thus forming a 100mm thick armoured box. Lower hangar used for bombing up and fueling. Upper hangar used for maintainance, warming up engines, and storage.
- Hull has been lengthend in accordance with reconstruction rules. No bulges fitted. Differing freeboard and draft.
- New 140,000shp powerplant instead of old 130,000shp plant. Speed is much the same.
- Vastly increased bunkerage.
RM Francesco Morosini, Italian Portaerei laid down 1920 (Engine 1927)
Displacement:
27,085 t light; 27,986 t standard; 32,953 t normal; 36,927 t full load
Dimensions: Length overall / water x beam x draught
822.75 ft / 787.40 ft x 98.43 ft x 27.56 ft (normal load)
250.77 m / 240.00 m x 30.00 m x 8.40 m
Aircraft:
Airgroup of 72; 2 squadrons of fighters, 4 squadrons of T-bombers
Armament:
16 - 5.12" / 130 mm guns (8x2 guns), 70.55lbs / 32.00kg shells, 1927 Model
Breech loading guns in deck mounts with hoists
on side ends, evenly spread
16 - 2.56" / 65.0 mm guns in single mounts, 9.00lbs / 4.08kg shells, 1927 Model
Quick firing guns in deck mounts with hoists
on side ends, evenly spread
32 - 1.46" / 37.0 mm guns (12 mounts), 2.20lbs / 1.00kg shells, 1927 Model
Anti-aircraft guns in deck mounts
on side, all amidships
Weight of broadside 1,343 lbs / 609 kg
Shells per gun, main battery: 300
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5.91" / 150 mm 428.54 ft / 130.62 m 11.91 ft / 3.63 m
Ends: Unarmoured
Upper: 3.94" / 100 mm 459.32 ft / 140.00 m 16.40 ft / 5.00 m
Main Belt covers 84 % of normal length
Upper belt covers lower hangar for its entirety.
- Torpedo Bulkhead:
1.38" / 35 mm 428.67 ft / 130.66 m 25.13 ft / 7.66 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.57" / 40 mm 1.18" / 30 mm -
2nd: 0.79" / 20 mm 0.39" / 10 mm -
3rd: 0.79" / 20 mm - -
- Armour deck: 3.94" / 100 mm, Conning tower: 5.91" / 150 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 140,000 shp / 104,440 Kw = 30.66 kts
Range 5,940nm at 24.00 kts
Bunker at max displacement = 8,941 tons
Complement:
1,222 - 1,589
Cost:
£4.015 million / $16.059 million
Distribution of weights at normal displacement:
Armament: 157 tons, 0.5 %
Armour: 7,295 tons, 22.1 %
- Belts: 2,618 tons, 7.9 %
- Torpedo bulkhead: 549 tons, 1.7 %
- Armament: 94 tons, 0.3 %
- Armour Deck: 3,903 tons, 11.8 %
- Conning Tower: 131 tons, 0.4 %
Machinery: 4,419 tons, 13.4 %
Hull, fittings & equipment: 9,714 tons, 29.5 %
Fuel, ammunition & stores: 5,868 tons, 17.8 %
Miscellaneous weights: 5,500 tons, 16.7 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
57,527 lbs / 26,094 Kg = 858.2 x 5.1 " / 130 mm shells or 8.2 torpedoes
Stability (Unstable if below 1.00): 1.24
Metacentric height 7.3 ft / 2.2 m
Roll period: 15.3 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.06
Seaboat quality (Average = 1.00): 1.50
Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.540
Length to Beam Ratio: 8.00 : 1
'Natural speed' for length: 28.06 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 47
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 16.40 ft / 5.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 32.81 ft / 10.00 m
- Forecastle (23 %): 32.81 ft / 10.00 m (23.62 ft / 7.20 m aft of break)
- Mid (50 %): 23.62 ft / 7.20 m
- Quarterdeck (23 %): 23.62 ft / 7.20 m
- Stern: 23.62 ft / 7.20 m
- Average freeboard: 25.71 ft / 7.84 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 83.7 %
- Above water (accommodation/working, high = better): 197.3 %
Waterplane Area: 53,583 Square feet or 4,978 Square metres
Displacement factor (Displacement / loading): 144 %
Structure weight / hull surface area: 126 lbs/sq ft or 615 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.13
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather