Quoted
Tyrfring, SAE Light Heavy Crusier laid down 1928 (Engine 1943)
Displacement:
9,314 t light; 9,788 t standard; 10,412 t normal; 10,911 t full load
Dimensions: Length overall / water x beam x draught
597.11 ft / 597.11 ft x 68.90 ft x 14.76 ft (normal load)
182.00 m / 182.00 m x 21.00 m x 4.50 m
Armament:
6 - 9.84" / 250 mm guns (2x3 guns), 476.75lbs / 216.25kg shells, 1928 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
16 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1943 Model
Automatic rapid fire guns in deck mounts with hoists
on side, all amidships, 8 raised mounts - superfiring
16 - 1.57" / 40.0 mm guns (4x4 guns), 1.95lbs / 0.89kg shells, 1928 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
12 - 0.79" / 20.0 mm guns (6x2 guns), 0.24lbs / 0.11kg shells, 1928 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 3,101 lbs / 1,406 kg
Shells per gun, main battery: 150
6 - 0.8" / 21 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.72" / 120 mm 368.64 ft / 112.36 m 10.17 ft / 3.10 m
Ends: 4.72" / 120 mm 89.24 ft / 27.20 m 10.17 ft / 3.10 m
139.23 ft / 42.44 m Unarmoured ends
Main Belt covers 95 % of normal length
Main belt does not fully cover magazines and engineering spaces
- Torpedo Bulkhead:
0.98" / 25 mm 368.64 ft / 112.36 m 9.19 ft / 2.80 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 7.09" / 180 mm 3.54" / 90 mm 4.72" / 120 mm
2nd: 0.79" / 20 mm 0.39" / 10 mm -
3rd: 0.59" / 15 mm - -
4th: 0.39" / 10 mm - -
- Armour deck: 1.57" / 40 mm, Conning tower: 5.91" / 150 mm
Machinery:
Diesel Internal combustion motors,
Geared drive, 4 shafts, 56,774 shp / 42,354 Kw = 28.20 kts
Range 8,000nm at 12.00 kts
Bunker at max displacement = 1,123 tons
Complement:
514 - 669
Cost:
£3.288 million / $13.152 million
Distribution of weights at normal displacement:
Armament: 393 tons, 3.8 %
Armour: 2,351 tons, 22.6 %
- Belts: 916 tons, 8.8 %
- Torpedo bulkhead: 123 tons, 1.2 %
- Armament: 374 tons, 3.6 %
- Armour Deck: 877 tons, 8.4 %
- Conning Tower: 61 tons, 0.6 %
Machinery: 1,466 tons, 14.1 %
Hull, fittings & equipment: 5,054 tons, 48.5 %
Fuel, ammunition & stores: 1,098 tons, 10.5 %
Miscellaneous weights: 50 tons, 0.5 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
18,624 lbs / 8,448 Kg = 39.1 x 9.8 " / 250 mm shells or 3.0 torpedoes
Stability (Unstable if below 1.00): 1.25
Metacentric height 4.3 ft / 1.3 m
Roll period: 14.0 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
- Recoil effect (Restricted arc if above 1.00): 0.39
Seaboat quality (Average = 1.00): 0.92
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.600
Length to Beam Ratio: 8.67 : 1
'Natural speed' for length: 24.44 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 57
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.82 ft / 6.65 m
- Forecastle (20 %): 19.23 ft / 5.86 m
- Mid (70 %): 19.23 ft / 5.86 m (11.35 ft / 3.46 m aft of break)
- Quarterdeck (15 %): 11.35 ft / 3.46 m
- Stern: 11.35 ft / 3.46 m
- Average freeboard: 17.07 ft / 5.20 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 107.1 %
- Above water (accommodation/working, high = better): 194.1 %
Waterplane Area: 30,089 Square feet or 2,795 Square metres
Displacement factor (Displacement / loading): 123 %
Structure weight / hull surface area: 126 lbs/sq ft or 613 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.07
- Longitudinal: 0.97
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather
This post has been edited 1 times, last edit by "TexanCowboy" (Jul 13th 2011, 8:55pm)
Quoted
How would a command ship for amphibious assaults look like?
This post has been edited 1 times, last edit by "AdmKuznetsov" (Jul 14th 2011, 6:24pm)
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