Right, Im BACK!
In order to check I am not barking up the wrong tree on any changes to how we design things please feel free to cast your eyes over the big ships from Nordmark for 1940:-
RNNS Gam Class, Nordmark Aircraft Carrier laid down 1940
Displacement:
30,000 t light; 31,062 t standard; 34,681 t normal; 37,576 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(881.59 ft / 820.00 ft) x 98.00 ft x (28.50 / 30.27 ft)
(268.71 m / 249.94 m) x 29.87 m x (8.69 / 9.23 m)
Armament:
12 - 5.12" / 130 mm 52.0 cal guns - 65.00lbs / 29.48kg shells, 480 per gun
Dual purpose guns in deck and hoist mounts, 1940 Model
4 x Twin mounts on sides, evenly spread
4 raised mounts
4 x Single mounts on sides amidships
4 raised mounts
64 - 1.46" / 37.0 mm 56.0 cal guns - 1.65lbs / 0.75kg shells, 2,000 per gun
Anti-air guns in deck mounts, 1940 Model
16 x Quad mounts on side ends, evenly spread
16 raised mounts
48 - 0.79" / 20.0 mm 70.0 cal guns - 0.27lbs / 0.12kg shells, 6,000 per gun
Anti-air guns in deck mounts, 1940 Model
24 x Twin mounts on centreline, aft deck forward
24 raised mounts
Weight of broadside 899 lbs / 408 kg
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.50" / 114 mm 550.00 ft / 167.64 m 12.00 ft / 3.66 m
Ends: Unarmoured
Main Belt covers 103 % of normal length
- Torpedo Bulkhead:
2.00" / 51 mm 550.00 ft / 167.64 m 27.00 ft / 8.23 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm 1.00" / 25 mm 1.50" / 38 mm
2nd: 0.50" / 13 mm - -
3rd: 0.50" / 13 mm - -
- Armoured deck - single deck: 3.00" / 76 mm For and Aft decks
Forecastle: 1.50" / 38 mm Quarter deck: 2.00" / 51 mm
- Conning towers: Forward 2.50" / 64 mm, Aft 0.00" / 0 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 163,514 shp / 121,981 Kw = 33.00 kts
Range 5,140nm at 24.00 kts
Bunker at max displacement = 6,514 tons
Complement:
1,269 - 1,651
Cost:
£10.607 million / $42.430 million
Distribution of weights at normal displacement:
Armament: 291 tons, 0.8 %
Armour: 5,475 tons, 15.8 %
- Belts: 1,241 tons, 3.6 %
- Torpedo bulkhead: 1,099 tons, 3.2 %
- Armament: 90 tons, 0.3 %
- Armour Deck: 2,988 tons, 8.6 %
- Conning Tower: 57 tons, 0.2 %
Machinery: 4,372 tons, 12.6 %
Hull, fittings & equipment: 10,778 tons, 31.1 %
Fuel, ammunition & stores: 4,681 tons, 13.5 %
Miscellaneous weights: 9,084 tons, 26.2 %
- Hull below water: 1,000 tons
- Hull above water: 1,525 tons
- On freeboard deck: 3,000 tons
- Above deck: 3,559 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
79,863 lbs / 36,225 Kg = 1,191.4 x 5.1 " / 130 mm shells or 13.5 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 6.2 ft / 1.9 m
Roll period: 16.5 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.06
Seaboat quality (Average = 1.00): 1.58
Hull form characteristics:
Hull has raised forecastle,
a normal bow and large transom stern
Block coefficient (normal/deep): 0.530 / 0.541
Length to Beam Ratio: 8.37 : 1
'Natural speed' for length: 33.03 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 45
Bow angle (Positive = bow angles forward): 36.43 degrees
Stern overhang: 21.00 ft / 6.40 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 12.00 %, 55.00 ft / 16.76 m, 50.00 ft / 15.24 m
- Forward deck: 58.00 %, 28.00 ft / 8.53 m, 28.00 ft / 8.53 m
- Aft deck: 10.00 %, 28.00 ft / 8.53 m, 28.00 ft / 8.53 m
- Quarter deck: 20.00 %, 28.00 ft / 8.53 m, 28.00 ft / 8.53 m
- Average freeboard: 30.88 ft / 9.41 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 67.5 %
- Above water (accommodation/working, high = better): 240.7 %
Waterplane Area: 57,280 Square feet or 5,321 Square metres
Displacement factor (Displacement / loading): 143 %
Structure weight / hull surface area: 129 lbs/sq ft or 629 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.39
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
Can Carry 84 Aircraft (Usually 36 Fighters, 42 Torpedo/Dive Bombers and 2 Helicopters) = 7056tons
8 Crated Aircraft @25t each = 200t
250tons for Command space & Electronics
200,000 gallons AVGAS = 760t
10000lb ordinance each for Fighters/Bombers = 368t
Catapults = 200t
Deck edge lift = 250t
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Gota Lejon Class, Nordmark Battlecruiser laid down 1940
Displacement:
29,765 t light; 31,461 t standard; 35,053 t normal; 37,926 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(822.25 ft / 805.00 ft) x 93.00 ft x (28.50 / 30.31 ft)
(250.62 m / 245.36 m) x 28.35 m x (8.69 / 9.24 m)
Armament:
9 - 12.00" / 305 mm 52.0 cal guns - 992.08lbs / 450.00kg shells, 135 per gun
Breech loading guns in turret on barbette mounts, 1940 Model
3 x Triple mounts on centreline ends, majority forward
1 raised mount - superfiring
14 - 5.12" / 130 mm 52.0 cal guns - 65.00lbs / 29.48kg shells, 450 per gun
Dual purpose guns in turret on barbette mounts, 1940 Model
6 x Twin mounts on sides, evenly spread
4 raised mounts
1 x Twin mount on centreline, aft evenly spread
1 raised mount
40 - 1.46" / 37.0 mm 56.0 cal guns - 1.65lbs / 0.75kg shells, 2,000 per gun
Breech loading guns in deck mounts, 1940 Model
5 x 2 row octuple mounts on sides, evenly spread
5 raised mounts
32 - 0.79" / 20.0 mm 70.0 cal guns - 0.27lbs / 0.12kg shells, 5,000 per gun
Breech loading guns in deck mounts, 1940 Model
16 x Twin mounts on sides, evenly spread
8 raised mounts
Weight of broadside 9,913 lbs / 4,497 kg
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 10.0" / 254 mm 500.00 ft / 152.40 m 12.50 ft / 3.81 m
Ends: Unarmoured
Upper: 2.00" / 51 mm 500.00 ft / 152.40 m 15.00 ft / 4.57 m
Main Belt covers 96 % of normal length
- Torpedo Bulkhead:
1.50" / 38 mm 500.00 ft / 152.40 m 26.00 ft / 7.92 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 10.0" / 254 mm 7.00" / 178 mm 8.50" / 216 mm
2nd: 3.00" / 76 mm 1.50" / 38 mm 2.00" / 51 mm
3rd: 0.50" / 13 mm - -
- Armoured deck - multiple decks: 4.00" / 102 mm For and Aft decks
Forecastle: 1.00" / 25 mm Quarter deck: 1.50" / 38 mm
- Conning towers: Forward 8.50" / 216 mm, Aft 0.00" / 0 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 168,682 shp / 125,837 Kw = 33.00 kts
Range 5,000nm at 24.00 kts
Bunker at max displacement = 6,465 tons
Complement:
1,280 - 1,665
Cost:
£16.117 million / $64.470 million
Distribution of weights at normal displacement:
Armament: 2,013 tons, 5.7 %
Armour: 9,643 tons, 27.5 %
- Belts: 3,284 tons, 9.4 %
- Torpedo bulkhead: 722 tons, 2.1 %
- Armament: 1,858 tons, 5.3 %
- Armour Deck: 3,584 tons, 10.2 %
- Conning Tower: 196 tons, 0.6 %
Machinery: 4,510 tons, 12.9 %
Hull, fittings & equipment: 13,149 tons, 37.5 %
Fuel, ammunition & stores: 5,287 tons, 15.1 %
Miscellaneous weights: 450 tons, 1.3 %
- Hull below water: 100 tons
- Hull above water: 100 tons
- On freeboard deck: 150 tons
- Above deck: 100 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
57,150 lbs / 25,923 Kg = 66.1 x 12.0 " / 305 mm shells or 7.6 torpedoes
Stability (Unstable if below 1.00): 1.07
Metacentric height 5.1 ft / 1.6 m
Roll period: 17.3 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.76
Seaboat quality (Average = 1.00): 1.23
Hull form characteristics:
Hull has a flush deck,
a normal bow and large transom stern
Block coefficient (normal/deep): 0.575 / 0.585
Length to Beam Ratio: 8.66 : 1
'Natural speed' for length: 32.48 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 57
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 22.00 %, 37.00 ft / 11.28 m, 28.00 ft / 8.53 m
- Forward deck: 50.00 %, 28.00 ft / 8.53 m, 26.00 ft / 7.92 m
- Aft deck: 13.00 %, 26.00 ft / 7.92 m, 26.00 ft / 7.92 m
- Quarter deck: 15.00 %, 26.00 ft / 7.92 m, 26.00 ft / 7.92 m
- Average freeboard: 27.73 ft / 8.45 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 89.5 %
- Above water (accommodation/working, high = better): 222.1 %
Waterplane Area: 55,716 Square feet or 5,176 Square metres
Displacement factor (Displacement / loading): 122 %
Structure weight / hull surface area: 171 lbs/sq ft or 837 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.39
- 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
Good seaboat, rides out heavy weather easily
Comments welcome as ever. These babies really need settling before I can start posting.