Dutch cruiser “B” tonnage.
Basically I’m considering keeping the eight Breda and Wadden Einlanden classes as my 8,000s and replacing the other 16 light cruisers with 6,000 tons vessels, which would use my allotment. One variable is if I want to expend some of that tonnage on destroyer leaders (which would be exchanged 2:1 for 6,000 tonners). Another is if I do wish to build a 6” armed CA ala Kometstar to serve as a heavy stiffener to the cruiser force.
At the current time, CLAA cruisers are not seen as needed by the Dutch, so that design will wait.
Three vessels for consideration and comments.
1. Roode Haes – “Red Hare” – Destroyer leader. I note the French Volta class fit twin 5.5” mounts on a 41’ beam, but felt twin 6” on a 36’ beam might be pushing it, so I went with the layout La Fantastque had.
2. Windhond is what shall hopefully be the standard CL. She seems adequate.
3. Kometstar II is a 10:1 L:B iteration of the fabulous 18x6” that I will probably have to learn how to draw in order to show how it may work. I’m just going from ISE’s deckplan for turret arrangements.
Roode Haes, Netherlands Contre-Torpilleur laid down 1934
Displacement:
3,009 t light; 3,145 t standard; 3,500 t normal; 3,784 t full load
Dimensions: Length overall / water x beam x draught
445.41 ft / 433.07 ft x 36.09 ft x 17.98 ft (normal load)
135.76 m / 132.00 m x 11.00 m x 5.48 m
Armament:
5 - 5.98" / 152 mm guns in single mounts, 110.23lbs / 50.00kg shells, 1934 Model
Breech loading guns in deck mounts with hoists
on centreline ends, majority aft, 3 raised mounts - superfiring
4 - 1.57" / 40.0 mm guns (1x4 guns), 1.95lbs / 0.88kg shells, 1934 Model
Anti-aircraft guns in deck mount
on centreline amidships, all raised guns - superfiring
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.88kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
8 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
4 - 0.52" / 13.2 mm guns in single mounts, 0.07lbs / 0.03kg shells, 1934 Model
Machine guns in deck mounts
on side, all forward, all raised mounts - superfiring
Weight of broadside 577 lbs / 262 kg
Shells per gun, main battery: 200
12 - 21.0" / 533.4 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.97" / 50 mm 433.07 ft / 132.00 m 11.48 ft / 3.50 m
Ends: Unarmoured
Main Belt covers 154 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.46" / 37 mm 0.20" / 5 mm 0.79" / 20 mm
2nd: 0.59" / 15 mm - -
3rd: 0.59" / 15 mm - -
4th: 0.59" / 15 mm - -
5th: 0.31" / 8 mm - -
- Armour deck: 0.79" / 20 mm, Conning tower: 1.97" / 50 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 53,170 shp / 39,665 Kw = 34.00 kts
Range 5,500nm at 15.00 kts
Bunker at max displacement = 639 tons
Complement:
226 - 295
Cost:
£1.799 million / $7.197 million
Distribution of weights at normal displacement:
Armament: 70 tons, 2.0 %
Armour: 539 tons, 15.4 %
- Belts: 362 tons, 10.3 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 18 tons, 0.5 %
- Armour Deck: 149 tons, 4.3 %
- Conning Tower: 10 tons, 0.3 %
Machinery: 1,445 tons, 41.3 %
Hull, fittings & equipment: 881 tons, 25.2 %
Fuel, ammunition & stores: 491 tons, 14.0 %
Miscellaneous weights: 75 tons, 2.1 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,068 lbs / 485 Kg = 10.0 x 6.0 " / 152 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 1.4 ft / 0.4 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 61 %
- Recoil effect (Restricted arc if above 1.00): 0.85
Seaboat quality (Average = 1.00): 1.21
Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.436
Length to Beam Ratio: 12.00 : 1
'Natural speed' for length: 23.61 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 4.00 ft / 1.22 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.90 ft / 6.98 m
- Forecastle (18 %): 21.59 ft / 6.58 m
- Mid (50 %): 13.62 ft / 4.15 m
- Quarterdeck (18 %): 13.62 ft / 4.15 m
- Stern: 13.62 ft / 4.15 m
- Average freeboard: 16.40 ft / 5.00 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 151.8 %
- Above water (accommodation/working, high = better): 63.4 %
Waterplane Area: 10,238 Square feet or 951 Square metres
Displacement factor (Displacement / loading): 83 %
Structure weight / hull surface area: 40 lbs/sq ft or 194 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.69
- Overall: 0.57
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Good seaboat, rides out heavy weather easily
Intended as destroyer leaders and loosely based on the French Volta class.
Windhond, Netherlands Light Cruiser laid down 1932
Displacement:
5,995 t light; 6,270 t standard; 7,469 t normal; 8,428 t full load
Dimensions: Length overall / water x beam x draught
575.38 ft / 557.74 ft x 53.15 ft x 18.37 ft (normal load)
175.37 m / 170.00 m x 16.20 m x 5.60 m
Armament:
8 - 5.98" / 152 mm guns (4x2 guns), 110.23lbs / 50.00kg shells, 1932 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 2.95" / 75.0 mm guns (4x2 guns), 12.87lbs / 5.84kg shells, 1932 Model
Dual purpose guns in deck mounts with hoists
on side ends, evenly spread
16 - 1.57" / 40.0 mm guns (2x8 guns), 1.95lbs / 0.88kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread, all raised mounts
16 - 1.57" / 40.0 mm guns (4x4 guns), 1.95lbs / 0.88kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
20 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 1,052 lbs / 477 kg
Shells per gun, main battery: 200
12 - 21.0" / 533.4 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.15" / 80 mm 426.51 ft / 130.00 m 9.84 ft / 3.00 m
Ends: Unarmoured
Main Belt covers 118 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.15" / 80 mm 1.18" / 30 mm 1.97" / 50 mm
2nd: 0.59" / 15 mm 0.20" / 5 mm 0.59" / 15 mm
3rd: 0.59" / 15 mm - -
4th: 0.59" / 15 mm - -
5th: 0.31" / 8 mm - -
- Armour deck: 1.26" / 32 mm, Conning tower: 3.15" / 80 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 78,599 shp / 58,635 Kw = 34.00 kts
Range 12,000nm at 15.00 kts
Bunker at max displacement = 2,158 tons
Complement:
401 - 522
Cost:
£2.921 million / $11.682 million
Distribution of weights at normal displacement:
Armament: 128 tons, 1.7 %
Armour: 1,187 tons, 15.9 %
- Belts: 535 tons, 7.2 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 156 tons, 2.1 %
- Armour Deck: 470 tons, 6.3 %
- Conning Tower: 26 tons, 0.3 %
Machinery: 2,320 tons, 31.1 %
Hull, fittings & equipment: 2,285 tons, 30.6 %
Fuel, ammunition & stores: 1,474 tons, 19.7 %
Miscellaneous weights: 75 tons, 1.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
5,370 lbs / 2,436 Kg = 50.1 x 6.0 " / 152 mm shells or 1.0 torpedoes
Stability (Unstable if below 1.00): 1.19
Metacentric height 2.7 ft / 0.8 m
Roll period: 13.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.44
Seaboat quality (Average = 1.00): 1.12
Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.480
Length to Beam Ratio: 10.49 : 1
'Natural speed' for length: 26.91 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 63
Bow angle (Positive = bow angles forward): 23.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.08 ft / 7.95 m
- Forecastle (20 %): 25.85 ft / 7.88 m (17.85 ft / 5.44 m aft of break)
- Mid (50 %): 17.85 ft / 5.44 m
- Quarterdeck (15 %): 17.85 ft / 5.44 m
- Stern: 17.85 ft / 5.44 m
- Average freeboard: 19.47 ft / 5.93 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 115.8 %
- Above water (accommodation/working, high = better): 123.3 %
Waterplane Area: 20,165 Square feet or 1,873 Square metres
Displacement factor (Displacement / loading): 108 %
Structure weight / hull surface area: 68 lbs/sq ft or 330 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.71
- Longitudinal: 1.19
- Overall: 0.75
Caution: Hull subject to strain in open-sea
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
Armor is 40mm over vitals. None on ends.
Kometstar II, Netherlands Light Cruiser laid down 1932
Displacement:
10,005 t light; 10,484 t standard; 12,110 t normal; 13,411 t full load
Dimensions: Length overall / water x beam x draught
681.95 ft / 666.01 ft x 66.60 ft x 20.51 ft (normal load)
207.86 m / 203.00 m x 20.30 m x 6.25 m
Armament:
18 - 5.98" / 152 mm guns (6x3 guns), 110.23lbs / 50.00kg shells, 1932 Model
Breech loading guns in turrets (on barbettes)
on centreline, evenly spread, 3 raised mounts
12 - 3.94" / 100 mm guns (6x2 guns), 30.51lbs / 13.84kg shells, 1932 Model
Dual purpose guns in deck mounts with hoists
on side ends, evenly spread
16 - 1.57" / 40.0 mm guns (4x4 guns), 1.95lbs / 0.88kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
16 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
4 - 0.52" / 13.2 mm guns in single mounts, 0.07lbs / 0.03kg shells, 1932 Model
Machine guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 2,386 lbs / 1,082 kg
Shells per gun, main battery: 170
12 - 21.0" / 533.4 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.33" / 110 mm 432.91 ft / 131.95 m 10.66 ft / 3.25 m
Ends: Unarmoured
Main Belt covers 100 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4.92" / 125 mm 1.97" / 50 mm 3.15" / 80 mm
2nd: 1.18" / 30 mm 0.79" / 20 mm 0.98" / 25 mm
3rd: 0.59" / 15 mm - -
4th: 0.59" / 15 mm - -
5th: 0.59" / 15 mm - -
- Armour deck: 1.86" / 47 mm, Conning tower: 4.33" / 110 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 78,409 shp / 58,493 Kw = 32.00 kts
Range 12,000nm at 15.00 kts
Bunker at max displacement = 2,927 tons
Complement:
576 - 750
Cost:
£4.177 million / $16.707 million
Distribution of weights at normal displacement:
Armament: 291 tons, 2.4 %
Armour: 2,389 tons, 19.7 %
- Belts: 830 tons, 6.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 483 tons, 4.0 %
- Armour Deck: 1,027 tons, 8.5 %
- Conning Tower: 49 tons, 0.4 %
Machinery: 2,314 tons, 19.1 %
Hull, fittings & equipment: 4,960 tons, 41.0 %
Fuel, ammunition & stores: 2,105 tons, 17.4 %
Miscellaneous weights: 50 tons, 0.4 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
18,068 lbs / 8,196 Kg = 168.6 x 6.0 " / 152 mm shells or 2.2 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 3.5 ft / 1.1 m
Roll period: 14.9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.46
Seaboat quality (Average = 1.00): 1.21
Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.466
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 29.57 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 18.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28.87 ft / 8.80 m
- Forecastle (18 %): 23.62 ft / 7.20 m (18.37 ft / 5.60 m aft of break)
- Mid (50 %): 18.37 ft / 5.60 m
- Quarterdeck (18 %): 18.37 ft / 5.60 m
- Stern: 18.37 ft / 5.60 m
- Average freeboard: 19.66 ft / 5.99 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 82.0 %
- Above water (accommodation/working, high = better): 147.3 %
Waterplane Area: 29,798 Square feet or 2,768 Square metres
Displacement factor (Displacement / loading): 129 %
Structure weight / hull surface area: 111 lbs/sq ft or 543 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.12
- 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
Good seaboat, rides out heavy weather easily
Deck armor is concentrated in a 60mm citadel. Actual armor figure entered is 47.3mm.
General deck plan is that of the the historical Ise, which fit 6xtwin 14" on a 640' hull.
Secondary mounts are expected to 4 bracketing forward superstructure, 2 bracketing rear. Mounts are enclosed vs. muzzle blast.