W drugiej
połowie lat 30-tych duńska Marynarka Wojenna rozważała zbudowanie nowego
okrętu obrony wybrzeża. Spowodowane to było faktem, iż spośród
wszystkich większych duńskich okrętów, jedynie Niels Juel była jako tako
nowoczesny (choć pozbawiony artylerii ciężkiej), zaś wszystkie
pozostałe jednostki reprezentowały sobą poziom przełomu XIX i XX wieku,
były w kiepskim stanie i de facto dożywały już swych dni (dwa z nich –
Herluf Trolle i Olfert Fischer zresztą wycofano jeszcze w latach
30-tych, pozostawiając w służbie tylko pancernik Peder Skram).
Wśród rozważanych projektów były:
- z maja 1936 r.: 5730 ton, 20 w., 2xII-254mm, 3xII-150mm,
- z października 1936 r.: 5775 ton, 18 w., 2xII-280mm, 4xII-120mm (w tym połowa plot.), 1xII-533mm wt,
- z listopada 1936 r.: 4600 ton, 21 w., 2xII-203mm, 4xII-120mm (również połowa plot.), 1xII-533mm wt,
- z grudnia 1936 r.: 4000 ton, ? w., 2xII-203mm, cxII-120mm
- z sierpnia 1939 r.: 5730 ton, 20 w., 2xII-254mm, 4xII-120mm (uniwersalne?)
Spośród
tych projektów, największy potencjał wydaje się mieć propozycja z
października 1936 r. (przypomina pomniejszony i nieco wolniejszy
Sverige), i ten okręt postanowiłem zasymulować. Oto raport ze
Springsharpa:
Sehested, danish coastal battleship laid down 1937 (Engine 1938)
Displacement:
5 332 t light; 5 652 t standard; 5 776 t normal; 5 876 t full load
Dimensions: Length overall / water x beam x draught
348,48 ft / 345,21 ft x 59,12 ft x 17,91 ft (normal load)
106,22 m / 105,22 m x 18,02 m x 5,46 m
Armament:
4 - 11,02" / 280 mm guns (2x2 guns), 669,80lbs / 303,82kg shells, 1937 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
4 - 4,72" / 120 mm guns (2x2 guns), 52,72lbs / 23,91kg shells, 1937 Model
Breech loading guns in turrets (on barbettes)
on side, all amidships
4 - 4,72" / 120 mm guns (2x2 guns), 52,72lbs / 23,91kg shells, 1937 Model
Anti-aircraft guns in deck mounts with hoists
on centreline ends, evenly spread, all raised mounts
4 - 1,57" / 40,0 mm guns (2x2 guns), 1,95lbs / 0,88kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, all forward, all raised mounts - superfiring
6 - 0,79" / 20,0 mm guns in single mounts, 0,24lbs / 0,11kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 3 110 lbs / 1 411 kg
Shells per gun, main battery: 115
2 - 21,0" / 533 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 8,19" / 208 mm 220,01 ft / 67,06 m 8,01 ft / 2,44 m
Ends: 3,54" / 90 mm 79,99 ft / 24,38 m 8,01 ft / 2,44 m
45,21 ft / 13,78 m Unarmoured ends
Upper: 5,98" / 152 mm 135,01 ft / 41,15 m 6,00 ft / 1,83 m
Main Belt covers 98% of normal length
- Torpedo Bulkhead:
1,18" / 30 mm 220,01 ft / 67,06 m 16,01 ft / 4,88 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 9,02" / 229 mm 6,30" / 160 mm 9,02" / 229 mm
2nd: 1,97" / 50 mm 1,97" / 50 mm 1,97" / 50 mm
3rd: 1,97" / 50 mm - -
4th: 0,51" / 13 mm - -
5th: 0,51" / 13 mm - -
- Armour deck: 1,97" / 50 mm, Conning tower: 9,21" / 234 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 8 206 shp / 6 122 Kw = 18,00 kts
Range 3 000nm at 10,00 kts
Bunker at max displacement = 224 tons
Complement:
330 - 430
Cost:
£2,971 million / $11,883 million
Distribution of weights at normal displacement:
Armament: 389 tons, 6,7%
Armour: 2 269 tons, 39,3%
- Belts: 969 tons, 16,8%
- Torpedo bulkhead: 154 tons, 2,7%
- Armament: 562 tons, 9,7%
- Armour Deck: 520 tons, 9,0%
- Conning Tower: 64 tons, 1,1%
Machinery: 225 tons, 3,9%
Hull, fittings & equipment: 2 449 tons, 42,4%
Fuel, ammunition & stores: 445 tons, 7,7%
Miscellaneous weights: 0 tons, 0,0%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
8 720 lbs / 3 955 Kg = 13,0 x 11,0 " / 280 mm shells or 2,4 torpedoes
Stability (Unstable if below 1.00): 1,05
Metacentric height 2,5 ft / 0,8 m
Roll period: 15,7 seconds
Steadiness - As gun platform (Average = 50 %): 66 %
- Recoil effect (Restricted arc if above 1.00): 0,72
Seaboat quality (Average = 1.00): 1,32
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,553
Length to Beam Ratio: 5,84 : 1
'Natural speed' for length: 18,58 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 11,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 16,83 ft / 5,13 m
- Forecastle (20%): 12,66 ft / 3,86 m
- Mid (50%): 12,66 ft / 3,86 m
- Quarterdeck (15%): 12,66 ft / 3,86 m
- Stern: 14,63 ft / 4,46 m
- Average freeboard: 13,15 ft / 4,01 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 96,9%
- Above water (accommodation/working, high = better): 97,4%
Waterplane Area: 14 283 Square feet or 1 327 Square metres
Displacement factor (Displacement / loading): 99%
Structure weight / hull surface area: 121 lbs/sq ft or 593 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,92
- Longitudinal: 2,13
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Good seaboat, rides out heavy weather easily
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