Caractéristiques des cuirassés de poche:
Study 14, Germany Pocket Battleship laid down 1931
Study 15 = Study 14 rebuilt in 1939Displacement:Study14 - 11 619 t light; 12 245 t standard; 12 745 t normal; 13 145 t full load
Study 15 - 13 697 t light; 14 446 t standard; 15 279 t normal; 15 946 t full load
Dimensions: Length overall / water x beam x draught
Study14 - 148.00 m / 146.00 m x 24.40 m x 7.08 m
Study15 - 149.56 m / 146.00 m x 24.40 m (Bulges 26.86 m) x 7.71 m
Rebuilt with Atlantic bow .The hull receive 30mm double hull
- bulges, 1.43m each side with new tanks for 600t fuel.
- double bottom, 60 cm box
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Study14 Armament:2T3x280 mm - 303.82kg shells – 130 Shells per gun
4T2x150 mm - 45.30kg shells
3T2x88 - 9.43kg shells
8 x37 mm - 0.70kg shells
8 x20 mm - 0.11kg shells
4T2x 533 mm torpedoes tubes
Weight of broadside 4 957 lbs / 2 248 kg
Study15 Armament 2T2x380 mm -800.00kg shells - 96 Shells per gun
4T2x150 mm - 45.30kg shells
3T2x105 mm - 16.02kg shells
16 x37 mm - 0.70kg shells
28x20 mm - 0.11kg shells
4T2x 533 mm torpedoes tubes
Weight of broadside 8 097 lbs / 3 673 kg
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Armour:Designed as armor citadel for close-range gunnery actions in the Baltic & North Sea
Belts:
Main: 250mm – 89mx2.44m - Inclined 12°
Ends: 40 mm – 28mx2.00m (8m added on std 15 bow)
Torpedo Bulkhead: 40 mm – 89mx6.8m
Main Turret: 280-100
Barbette: 280
Sec Turret: 100-30
Barbette: 100
AA Turret: 20
Light AA guns: 10
For Study 15, front main turret increase to 360mm
Front sec turret increase to 140mm
Armour deck: 100 mm
Conning tower: 280 mm
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Machinery: Study 14Diesel Internal combustion motors,
Geared drive, 4 shafts, 41 361 shp / 30 856 Kw = 24.84 kts
Range 3 107nm at 15.00 kts
Bunker at max displacement = 900 tons
Machinery: Study 15Diesel Internal combustion motors,
Geared drive, 4 shafts, 41 361 shp / 30 856 Kw = 24.08 kts
Range 4 833nm at 15.00 kts
Bunker at max displacement = 1 500 tons
(Bulges with new tanks for 600t fuel.)
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Fighting equipement3 Blockhauss
1 main with 7m rangefinder
2 secondary with 10m rangefinder
2x10m rangefinder in the 2 main turrets
3x4m rangefinder (AA)
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Complement:599 – 779 in 1931
686 – 893 in 1944
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Cost: 1931
£4.813 million / $19.251 million
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SurvivabilityStudy 14
8720kg = 28.7x280mmshells or 3.9 torpedoes
Study 15
9016 Kg = 11.9 x 380mm shells or 4.2 torpedoes
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Seakeeping ability:Study 14
Stability (Unstable if below 1.00): 1.07
Metacentric height 4.1 ft / 1.2 m
Roll period: 16.6 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.51
Seaboat quality (Average = 1.00): 1.18
Study 15
Stability (Unstable if below 1.00): 1.08
Metacentric height 4.2 ft / 1.3 m
Roll period: 18.1 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.58
Seaboat quality (Average = 1.00): 1.16
Study 14 Hull form characteristics:Hull has a flush deck
Block coefficient: 0.501
Length to Beam Ratio: 5.98 : 1
'Natural speed' for length: 21.89 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 60
Bow angle (Positive = bow angles forward): 5.00 degrees
Stern overhang: 4.33 ft / 1.32 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.59 ft / 7.80 m
- Forecastle (23 %): 20.67 ft / 6.30 m
- Mid (55 %): 17.13 ft / 5.22 m
- Quarterdeck (22 %): 17.13 ft / 5.22 m
- Stern: 17.13 ft / 5.22 m
- Average freeboard: 18.96 ft / 5.78 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 92.8 %
- Above water (accommodation/working, high = better): 126.5 %
Waterplane Area: 25 572 Square feet or 2 376 Square metres
Displacement factor (Displacement / loading): 107 %
Structure weight / hull surface area: 144 lbs/sq ft or 701 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.91
- Longitudinal: 2.17
- 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
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Stydy 15 Hull form characteristics: Hull has a flush deck
Block coefficient: 0.501
Length to Beam Ratio: 5.44 : 1
'Natural speed' for length: 21.89 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 60
Bow angle (Positive = bow angles forward): 16.00 degrees
Stern overhang: 4.33 ft / 1.32 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.59 ft / 7.80 m
- Forecastle (23 %): 20.67 ft / 6.30 m
- Mid (55 %): 17.13 ft / 5.22 m
- Quarterdeck (22 %): 17.13 ft / 5.22 m
- Stern: 17.13 ft / 5.22 m
- Average freeboard: 18.96 ft / 5.78 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 99.2 %
- Above water (accommodation/working, high = better): 110.4 %
Waterplane Area: 25 572 Square feet or 2 376 Square metres
Displacement factor (Displacement / loading): 100 %
Structure weight / hull surface area: 170 lbs/sq ft or 828 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.37
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Jef
