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Quoted
Date 1945
Coastal
Armament: None
H2O2HP 100
DieselHP 400
CREW 13
Misc Weight 100 (representative of additional safety measures put in place for the H2O2 systems and other non-standard equipment relating to H2O2)
wt fuel&batts 30
Light weight 241
kerb wt 271
disp 320
res buoyancy 15%
Max Surf Spd 10.7knts
Max Sub Spd 6.7knts
L: 40m
Beam: 4m
D: 4m
Crush depth 225
#TT 0
Tons: Oil 20
Tons H2O2: 10
Surface Range: 3063@10knts
Underwater range: 1375@4knts
Quoted
Date 1945
Oceanic
Armament: 2x 25 in hydrodynamic mounting
ElecHP 3000
DieselHP 3600
CREW 43
Misc weight 20 (representative of 25mm AA guns, Snorkel and radar)
wt fuel&batts 560
Light weight 1225
kerb wt 1445
disp 1775
res buoyancy 19%
Max Surf Spd 15.5knts
Max Sub Spd 14.2knts
L 75.0m
Beam 8.6m
D 5.5m
Crush depth 317.5
#TT 6 x 533mm (6 bow)
Mines 20 (used to sim reload torps)
Tons Oil 200.0
Tons Battery 360.0
Surface Range 10350@10knts
Underwater range 715@4knts
Quoted
Date 1945
Coastal
Armament 1x 25 in hydrodynamic mount
ElecHP 600
DieselHP 400
CREW 14
Misc Weight 15 (representative of 25mm AA gun, Snorkel and radar)
wt fuel&batts 70
Light weight 227
kerb wt 271
disp 320
res buoyancy 15%
Max Surf Spd 10.7knts
Max Sub Spd 12.2knts
L 40m
Beam 4m
D 4m
Crush depth 225
#TT 4 x 533mm (4 bow)
Mines 4 (used to sim reload torps)
Tons Oil 40.0
Tons Battery 30.0
Surface Range 6125@10knts
Underwater range 177@4knts
Quoted
Duca degli Abruzzi , Italian Cruiser laid down 1934 (Engine 1945)
Displacement:
7,900 t light; 8,354 t standard; 9,777 t normal; 10,916 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
16 - 2.99" / 76.0 mm guns (8x2 guns), 14.86lbs / 6.74kg shells, 1945 Model
Automatic rapid fire guns in deck mounts with hoists
on side, all amidships, 2 raised mounts - superfiring
16 - 1.46" / 37.0 mm guns (4x4 guns), 1.55lbs / 0.70kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
12 - 0.98" / 25.0 mm guns (6x2 guns), 0.48lbs / 0.22kg shells, 1934 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 1,062 lbs / 482 kg
Shells per gun, main battery: 400
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
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: 1.18" / 30 mm 0.79" / 20 mm 0.79" / 20 mm
3rd: 0.39" / 10 mm - -
4th: 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 4,000nm at 25.00 kts
Bunker at max displacement = 2,562 tons
Complement:
491 - 639
Cost:
£3.093 million / $12.371 million
Distribution of weights at normal displacement:
Armament: 143 tons, 1.5 %
Armour: 2,059 tons, 21.1 %
- Belts: 581 tons, 5.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 317 tons, 3.2 %
- Armour Deck: 1,108 tons, 11.3 %
- Conning Tower: 52 tons, 0.5 %
Machinery: 1,667 tons, 17.0 %
Hull, fittings & equipment: 3,681 tons, 37.6 %
Fuel, ammunition & stores: 1,877 tons, 19.2 %
Miscellaneous weights: 350 tons, 3.6 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
17,901 lbs / 8,120 Kg = 167.1 x 6.0 " / 152 mm shells or 2.4 torpedoes
Stability (Unstable if below 1.00): 1.25
Metacentric height 4.0 ft / 1.2 m
Roll period: 13.8 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0.19
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): 50
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): 73.1 %
- Above water (accommodation/working, high = better): 185.1 %
Waterplane Area: 25,357 Square feet or 2,356 Square metres
Displacement factor (Displacement / loading): 142 %
Structure weight / hull surface area: 100 lbs/sq ft or 487 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.35
- 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
25t Emergency Diesel
20t Construction Reserve
Quoted
Asmara, East African Coastal Defence Ship laid down 1925 (Engine 1945)
Displacement:
1,941 t light; 2,053 t standard; 2,227 t normal; 2,367 t full load
Dimensions: Length overall / water x beam x draught
242.77 ft / 229.66 ft x 45.93 ft x 11.38 ft (normal load)
74.00 m / 70.00 m x 14.00 m x 3.47 m
Armament:
4 - 7.99" / 203 mm guns (2x2 guns), 276.24lbs / 125.30kg shells, 1925 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
4 - 2.99" / 76.0 mm guns in single mounts, 14.26lbs / 6.47kg shells, 1945 Model
Automatic rapid fire guns in deck mounts with hoists
on side, all amidships
8 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1945 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
16 - 0.79" / 20.0 mm guns (1x16 guns), 0.24lbs / 0.11kg shells, 1925 Model
Breech loading guns in deck mount
on side
Weight of broadside 1,178 lbs / 534 kg
Shells per gun, main battery: 100
5 - 23.6" / 600 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.94" / 100 mm 110.24 ft / 33.60 m 8.14 ft / 2.48 m
Ends: 0.79" / 20 mm 119.39 ft / 36.39 m 8.14 ft / 2.48 m
Upper: 0.79" / 20 mm 110.24 ft / 33.60 m 8.01 ft / 2.44 m
Main Belt covers 74 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.94" / 100 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:
Diesel Internal combustion generators,
Electric motors, 2 shafts, 5,800 shp / 4,327 Kw = 18.00 kts
Range 3,000nm at 15.00 kts
Bunker at max displacement = 314 tons
Complement:
161 - 210
Cost:
£0.668 million / $2.672 million
Distribution of weights at normal displacement:
Armament: 138 tons, 6.2 %
Armour: 628 tons, 28.2 %
- Belts: 238 tons, 10.7 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 145 tons, 6.5 %
- Armour Deck: 235 tons, 10.6 %
- Conning Tower: 10 tons, 0.5 %
Machinery: 146 tons, 6.6 %
Hull, fittings & equipment: 1,004 tons, 45.1 %
Fuel, ammunition & stores: 286 tons, 12.9 %
Miscellaneous weights: 25 tons, 1.1 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,106 lbs / 1,862 Kg = 16.1 x 8.0 " / 203 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.13
Metacentric height 1.9 ft / 0.6 m
Roll period: 13.8 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.71
Seaboat quality (Average = 1.00): 1.02
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.649
Length to Beam Ratio: 5.00 : 1
'Natural speed' for length: 15.15 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 49
Bow angle (Positive = bow angles forward): 23.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 15.42 ft / 4.70 m
- Forecastle (26 %): 13.78 ft / 4.20 m
- Mid (50 %): 13.78 ft / 4.20 m
- Quarterdeck (26 %): 13.78 ft / 4.20 m
- Stern: 13.78 ft / 4.20 m
- Average freeboard: 13.95 ft / 4.25 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 69.6 %
- Above water (accommodation/working, high = better): 77.2 %
Waterplane Area: 8,074 Square feet or 750 Square metres
Displacement factor (Displacement / loading): 109 %
Structure weight / hull surface area: 87 lbs/sq ft or 426 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.86
- Longitudinal: 3.85
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped
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