WesWorld

CL46A, Nordmarl Light Cruiser laid down 1946

Displacement:
6,969 t light; 7,424 t standard; 8,311 t normal; 9,021 t full load

Dimensions: Length overall / water x beam x draught
531.97 ft / 524.93 ft x 59.06 ft x 18.04 ft (normal load)
162.14 m / 160.00 m x 18.00 m x 5.50 m

Armament:
8 - 5.12" / 130 mm guns (4x2 guns), 67.03lbs / 30.41kg shells, 1946 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, evenly spread
8 - 3.54" / 90.0 mm guns (4x2 guns), 22.24lbs / 10.09kg shells, 1946 Model
Automatic rapid fire guns in deck mounts with hoists
on side, all amidships
32 - 1.57" / 40.0 mm guns (8x4 guns), 1.95lbs / 0.89kg shells, 1946 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 777 lbs / 352 kg
Shells per gun, main battery: 600

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.15" / 80 mm 328.08 ft / 100.00 m 13.12 ft / 4.00 m
Ends: Unarmoured
Main Belt covers 96 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.15" / 80 mm 1.97" / 50 mm 1.97" / 50 mm
2nd: 1.97" / 50 mm 0.98" / 25 mm 1.18" / 30 mm
3rd: 0.98" / 25 mm 0.59" / 15 mm -

- Armour deck: 1.97" / 50 mm, Conning tower: 3.15" / 80 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 78,831 shp / 58,808 Kw = 33.00 kts
Range 3,000nm at 24.00 kts
Bunker at max displacement = 1,597 tons

Complement:
434 - 565

Cost:
£4.369 million / $17.475 million

Distribution of weights at normal displacement:
Armament: 115 tons, 1.4 %
Armour: 1,506 tons, 18.1 %
- Belts: 575 tons, 6.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 106 tons, 1.3 %
- Armour Deck: 797 tons, 9.6 %
- Conning Tower: 28 tons, 0.3 %
Machinery: 1,969 tons, 23.7 %
Hull, fittings & equipment: 3,129 tons, 37.6 %
Fuel, ammunition & stores: 1,342 tons, 16.2 %
Miscellaneous weights: 250 tons, 3.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
12,248 lbs / 5,555 Kg = 182.7 x 5.1 " / 130 mm shells or 1.6 torpedoes
Stability (Unstable if below 1.00): 1.19
Metacentric height 3.1 ft / 1.0 m
Roll period: 14.0 seconds
Steadiness - As gun platform (Average = 50 %): 61 %
- Recoil effect (Restricted arc if above 1.00): 0.21
Seaboat quality (Average = 1.00): 1.03

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.520
Length to Beam Ratio: 8.89 : 1
'Natural speed' for length: 26.33 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 59
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.25 ft / 8.00 m
- Forecastle (15 %): 22.97 ft / 7.00 m
- Mid (50 %): 19.69 ft / 6.00 m
- Quarterdeck (15 %): 19.69 ft / 6.00 m
- Stern: 19.69 ft / 6.00 m
- Average freeboard: 20.95 ft / 6.39 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 94.0 %
- Above water (accommodation/working, high = better): 197.0 %
Waterplane Area: 21,887 Square feet or 2,033 Square metres
Displacement factor (Displacement / loading): 126 %
Structure weight / hull surface area: 90 lbs/sq ft or 441 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 1.81
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

Variant C, with errors corrected and a revised freeboard for more seakeeping.


CL46C, Nordmark Light Cruiser laid down 1946

Displacement:
7,368 t light; 7,832 t standard; 8,758 t normal; 9,499 t full load

Dimensions: Length overall / water x beam x draught
532.85 ft / 524.93 ft x 59.06 ft x 18.04 ft (normal load)
162.41 m / 160.00 m x 18.00 m x 5.50 m

Armament:
8 - 5.12" / 130 mm guns (4x2 guns), 67.03lbs / 30.41kg shells, 1946 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 3.54" / 90.0 mm guns (4x2 guns), 22.24lbs / 10.09kg shells, 1946 Model
Automatic rapid fire guns in deck mounts with hoists
on side ends, evenly spread
32 - 1.57" / 40.0 mm guns (8x4 guns), 1.95lbs / 0.89kg shells, 1946 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 777 lbs / 352 kg
Shells per gun, main battery: 600

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.15" / 80 mm 328.08 ft / 100.00 m 13.12 ft / 4.00 m
Ends: Unarmoured
Main Belt covers 96 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.15" / 80 mm 1.97" / 50 mm 1.97" / 50 mm
2nd: 1.97" / 50 mm 0.98" / 25 mm 1.18" / 30 mm
3rd: 0.98" / 25 mm 0.59" / 15 mm -

- Armour deck: 1.97" / 50 mm, Conning tower: 3.15" / 80 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 82,847 shp / 61,804 Kw = 33.00 kts
Range 3,000nm at 24.00 kts
Bunker at max displacement = 1,667 tons

Complement:
452 - 588

Cost:
£4.567 million / $18.269 million

Distribution of weights at normal displacement:
Armament: 115 tons, 1.3 %
Armour: 1,530 tons, 17.5 %
- Belts: 576 tons, 6.6 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 107 tons, 1.2 %
- Armour Deck: 819 tons, 9.3 %
- Conning Tower: 29 tons, 0.3 %
Machinery: 2,069 tons, 23.6 %
Hull, fittings & equipment: 3,404 tons, 38.9 %
Fuel, ammunition & stores: 1,390 tons, 15.9 %
Miscellaneous weights: 250 tons, 2.9 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
13,775 lbs / 6,248 Kg = 205.5 x 5.1 " / 130 mm shells or 1.7 torpedoes
Stability (Unstable if below 1.00): 1.20
Metacentric height 3.2 ft / 1.0 m
Roll period: 13.9 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.25
Seaboat quality (Average = 1.00): 1.18

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.548
Length to Beam Ratio: 8.89 : 1
'Natural speed' for length: 26.25 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 51
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 29.53 ft / 9.00 m
- Forecastle (15 %): 26.25 ft / 8.00 m
- Mid (50 %): 22.97 ft / 7.00 m
- Quarterdeck (15 %): 19.69 ft / 6.00 m
- Stern: 19.69 ft / 6.00 m
- Average freeboard: 23.16 ft / 7.06 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 93.0 %
- Above water (accommodation/working, high = better): 217.6 %
Waterplane Area: 22,480 Square feet or 2,089 Square metres
Displacement factor (Displacement / loading): 128 %
Structure weight / hull surface area: 91 lbs/sq ft or 442 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.91
- Longitudinal: 2.33
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

Variant C looks to be an extremely good design - very powerful AA outfit, good seakeeping and enough miscellaneous weight to specify a good radar and electronics package. My only question - are you deliberately eschewing torpedoes?

I am at best skeptical of the value torpedoes offer to ships large enough to hope to survive any hit - having such spectacular explosive potential out on the deck seems to defeat the purpose of building a protected ship. OTOH, Nordmark's practice in the past has been to use torpedoes on cruisers, so in this case, yeah, it's a mistake.

Torpedoes should be laid out in four sets of three, six to a side, with superstructure decking them over and aircraft facilities on top of that.


CL46D, Nordmark Light Cruiser laid down 1946

Displacement:
7,368 t light; 7,832 t standard; 8,758 t normal; 9,499 t full load

Dimensions: Length overall / water x beam x draught
532.85 ft / 524.93 ft x 59.06 ft x 18.04 ft (normal load)
162.41 m / 160.00 m x 18.00 m x 5.50 m

Armament:
8 - 5.12" / 130 mm guns (4x2 guns), 67.03lbs / 30.41kg shells, 1946 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 3.54" / 90.0 mm guns (4x2 guns), 22.24lbs / 10.09kg shells, 1946 Model
Automatic rapid fire guns in deck mounts with hoists
on side ends, evenly spread
32 - 1.57" / 40.0 mm guns (8x4 guns), 1.95lbs / 0.89kg shells, 1946 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 777 lbs / 352 kg
Shells per gun, main battery: 600
12 - 24.0" / 610 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.15" / 80 mm 328.08 ft / 100.00 m 13.12 ft / 4.00 m
Ends: Unarmoured
Main Belt covers 96 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.15" / 80 mm 1.97" / 50 mm 1.97" / 50 mm
2nd: 1.97" / 50 mm 0.98" / 25 mm 1.18" / 30 mm
3rd: 0.98" / 25 mm 0.59" / 15 mm -

- Armour deck: 1.97" / 50 mm, Conning tower: 3.15" / 80 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 82,847 shp / 61,804 Kw = 33.00 kts
Range 3,000nm at 24.00 kts
Bunker at max displacement = 1,667 tons

Complement:
452 - 588

Cost:
£4.567 million / $18.269 million

Distribution of weights at normal displacement:
Armament: 115 tons, 1.3 %
Armour: 1,530 tons, 17.5 %
- Belts: 576 tons, 6.6 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 107 tons, 1.2 %
- Armour Deck: 819 tons, 9.3 %
- Conning Tower: 29 tons, 0.3 %
Machinery: 2,069 tons, 23.6 %
Hull, fittings & equipment: 3,404 tons, 38.9 %
Fuel, ammunition & stores: 1,390 tons, 15.9 %
Miscellaneous weights: 250 tons, 2.9 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
13,775 lbs / 6,248 Kg = 205.5 x 5.1 " / 130 mm shells or 1.7 torpedoes
Stability (Unstable if below 1.00): 1.20
Metacentric height 3.2 ft / 1.0 m
Roll period: 13.9 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.25
Seaboat quality (Average = 1.00): 1.18

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.548
Length to Beam Ratio: 8.89 : 1
'Natural speed' for length: 26.25 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 51
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 29.53 ft / 9.00 m
- Forecastle (15 %): 26.25 ft / 8.00 m
- Mid (50 %): 22.97 ft / 7.00 m
- Quarterdeck (15 %): 19.69 ft / 6.00 m
- Stern: 19.69 ft / 6.00 m
- Average freeboard: 23.16 ft / 7.06 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 93.0 %
- Above water (accommodation/working, high = better): 141.7 %
Waterplane Area: 22,480 Square feet or 2,089 Square metres
Displacement factor (Displacement / loading): 128 %
Structure weight / hull surface area: 91 lbs/sq ft or 442 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.91
- Longitudinal: 2.33
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

The design looks good, and ought to be a powerful antiaircraft escort. However, having just constructed a run of light cruisers, are more cruisers that necessary to the detriment of a balanced fleet?

If they were being contemplated as an increase in numbers, they would certainly be excess - but there are still seven more CLs aging out of viability, which these would be laid down to replace.

Block obsolescence is a thing, but I'm already behind that 8-ball, so it's either draw down my strength or try and find a way out when things are less... pressured.