Grendel, Gothia Works Light Cruiser laid down 1935
Displacement:
6 938 t light; 7 244 t standard; 7 906 t normal; 8 436 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(540,36 ft / 521,65 ft) x 52,49 ft x (18,04 / 18,98 ft)
(164,70 m / 159,00 m) x 16,00 m x (5,50 / 5,79 m)
Armament:
9 - 5,98" / 152 mm 45,0 cal guns - 108,07lbs / 49,02kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1935 Model
3 x Triple mounts on centreline ends, majority forward
1 raised mount - superfiring
8 - 4,13" / 105 mm 45,0 cal guns - 35,62lbs / 16,16kg shells, 350 per gun
Dual purpose guns in deck mounts, 1935 Model
4 x Twin mounts on sides, evenly spread
20 - 0,98" / 25,0 mm 45,0 cal guns - 0,48lbs / 0,22kg shells, 2 000 per gun
Anti-air guns in deck mounts, 1935 Model
10 x 2-gun mounts on sides, evenly spread
Weight of broadside 1 267 lbs / 575 kg
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2,00" / 51 mm 421,16 ft / 128,37 m 8,69 ft / 2,65 m
Ends: 1,00" / 25 mm 100,48 ft / 30,63 m 8,69 ft / 2,65 m
Upper: 1,00" / 25 mm 365,16 ft / 111,30 m 8,00 ft / 2,44 m
Main Belt covers 124 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2,00" / 51 mm - 2,00" / 51 mm
- Conning towers: Forward 3,00" / 76 mm, Aft 0,00" / 0 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 94 312 shp / 70 357 Kw = 34,00 kts
Range 3 000nm at 20,00 kts
Bunker at max displacement = 1 192 tons
Complement:
418 - 544
Cost:
£3,688 million / $14,754 million
Distribution of weights at normal displacement:
Armament: 269 tons, 3,4 %
Armour: 598 tons, 7,6 %
- Belts: 444 tons, 5,6 %
- Armament: 129 tons, 1,6 %
- Conning Tower: 26 tons, 0,3 %
Machinery: 2 679 tons, 33,9 %
Hull, fittings & equipment: 3 392 tons, 42,9 %
Fuel, ammunition & stores: 968 tons, 12,2 %
Miscellaneous weights: 0 tons, 0,0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7 236 lbs / 3 282 Kg = 67,5 x 6,0 " / 152 mm shells or 1,0 torpedoes
Stability (Unstable if below 1.00): 1,01
Metacentric height 2,0 ft / 0,6 m
Roll period: 15,8 seconds
Steadiness - As gun platform (Average = 50 %): 78 %
- Recoil effect (Restricted arc if above 1.00): 0,85
Seaboat quality (Average = 1.00): 1,29
Hull form characteristics:
Hull has low quarterdeck ,
a normal bow and small transom stern
Block coefficient (normal/deep): 0,560 / 0,568
Length to Beam Ratio: 9,94 : 1
'Natural speed' for length: 24,42 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 60
Bow angle (Positive = bow angles forward): 12,00 degrees
Stern overhang: 13,12 ft / 4,00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 17,50 %, 26,25 ft / 8,00 m, 24,61 ft / 7,50 m
- Forward deck: 27,50 %, 24,61 ft / 7,50 m, 24,61 ft / 7,50 m
- Aft deck: 42,50 %, 24,61 ft / 7,50 m, 24,61 ft / 7,50 m
- Quarter deck: 12,50 %, 19,69 ft / 6,00 m, 19,69 ft / 6,00 m
- Average freeboard: 24,11 ft / 7,35 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 123,2 %
- Above water (accommodation/working, high = better): 221,7 %
Waterplane Area: 19 769 Square feet or 1 837 Square metres
Displacement factor (Displacement / loading): 113 %
Structure weight / hull surface area: 92 lbs/sq ft or 451 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,88
- Longitudinal: 3,34
- Overall: 1,01
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
And Variation B
Grendel B, Gothia Works Light Cruiser laid down 1935
Displacement:
8 831 t light; 9 254 t standard; 10 013 t normal; 10 620 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(605,97 ft / 587,27 ft) x 59,06 ft x (18,04 / 18,89 ft)
(184,70 m / 179,00 m) x 18,00 m x (5,50 / 5,76 m)
Armament:
6 - 7,99" / 203 mm 45,0 cal guns - 257,42lbs / 116,76kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1935 Model
3 x Twin mounts on centreline ends, majority forward
1 raised mount - superfiring
12 - 4,13" / 105 mm 45,0 cal guns - 35,62lbs / 16,16kg shells, 350 per gun
Dual purpose guns in deck mounts, 1935 Model
6 x Twin mounts on sides, evenly spread
20 - 0,98" / 25,0 mm 45,0 cal guns - 0,48lbs / 0,22kg shells, 2 000 per gun
Anti-air guns in deck mounts, 1935 Model
10 x 2-gun mounts on sides amidships
Weight of broadside 1 982 lbs / 899 kg
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2,00" / 51 mm 521,09 ft / 158,83 m 9,22 ft / 2,81 m
Ends: 1,00" / 25 mm 66,16 ft / 20,17 m 9,22 ft / 2,81 m
Upper: 1,00" / 25 mm 411,09 ft / 125,30 m 8,00 ft / 2,44 m
Main Belt covers 137 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2,00" / 51 mm - 2,00" / 51 mm
- Conning towers: Forward 3,00" / 76 mm, Aft 0,00" / 0 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 116 830 shp / 87 155 Kw = 35,00 kts
Range 3 000nm at 20,00 kts
Bunker at max displacement = 1 367 tons
Complement:
499 - 650
Cost:
£4,786 million / $19,145 million
Distribution of weights at normal displacement:
Armament: 416 tons, 4,2 %
Armour: 708 tons, 7,1 %
- Belts: 534 tons, 5,3 %
- Armament: 144 tons, 1,4 %
- Conning Tower: 30 tons, 0,3 %
Machinery: 3 319 tons, 33,1 %
Hull, fittings & equipment: 4 388 tons, 43,8 %
Fuel, ammunition & stores: 1 182 tons, 11,8 %
Miscellaneous weights: 0 tons, 0,0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
9 283 lbs / 4 211 Kg = 36,4 x 8,0 " / 203 mm shells or 1,2 torpedoes
Stability (Unstable if below 1.00): 1,06
Metacentric height 2,5 ft / 0,8 m
Roll period: 15,6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,78
Seaboat quality (Average = 1.00): 1,17
Hull form characteristics:
Hull has low quarterdeck ,
a normal bow and small transom stern
Block coefficient (normal/deep): 0,560 / 0,567
Length to Beam Ratio: 9,94 : 1
'Natural speed' for length: 25,91 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 60
Bow angle (Positive = bow angles forward): 12,00 degrees
Stern overhang: 13,12 ft / 4,00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 17,50 %, 26,25 ft / 8,00 m, 24,61 ft / 7,50 m
- Forward deck: 27,50 %, 24,61 ft / 7,50 m, 24,61 ft / 7,50 m
- Aft deck: 42,50 %, 24,61 ft / 7,50 m, 24,61 ft / 7,50 m
- Quarter deck: 12,50 %, 19,69 ft / 6,00 m, 19,69 ft / 6,00 m
- Average freeboard: 24,11 ft / 7,35 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 123,8 %
- Above water (accommodation/working, high = better): 235,2 %
Waterplane Area: 25 038 Square feet or 2 326 Square metres
Displacement factor (Displacement / loading): 112 %
Structure weight / hull surface area: 106 lbs/sq ft or 518 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,93
- Longitudinal: 2,34
- Overall: 1,02
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Both are undergunned according to SS