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1

Monday, September 27th 2004, 5:44am

A Chilean/Nordmark Destroyer (Long Range)

This is the first time I've seriously played with StringStyle to make a light fast combatant so I don't know if this is even remotely correct.

Remember this is a pre-treaty ship belonging to a non-treaty nation.

Capitan Herlock, Chilean/(Nordmark) Destroyer laid down 1914

Displacement:
1,012 t light; 1,046 t standard; 1,200 t normal; 1,318 t full load
Loading submergence 146 tons/feet

Dimensions:
305.00 ft x 30.50 ft x 11.00 ft (normal load)
92.96 m x 9.30 m x 3.35 m

Armament:
3 - 4.30" / 109 mm guns (3 Main turrets x 1 guns)(centerline)
2 - 1.46" / 37 mm AA guns (sides)
2 - 1.90" / 48 mm guns (sides)
Weight of broadside 129 lbs / 59 kg
4 - 18.0" / 457.2 mm above water torpedoes (twin mounts)


Armour:
Main turrets 0.50" / 13 mm
Armour deck 1.00" / 25 mm, Conning tower 4.50" / 114 mm

Machinery:
Coal and oil fired boilers, steam turbines,
Direct drive, 2 shafts, 22,501 shp / 16,786 Kw = 30.00 kts
Range 6,400nm at 10.00 kts

Complement:
101 - 132

Cost:
£0.170 million / $0.679 million

Distribution of weights at normal displacement:
Armament: 16 tons, 1.3 %
Armour: 115 tons, 9.5 %
Belts: 0 tons, 0.0 %, Armament: 9 tons, 0.7 %, Armour Deck: 95 tons, 7.9 %
Conning Tower: 11 tons, 0.9 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 602 tons, 50.2 %
Hull, fittings & equipment: 279 tons, 23.2 %
Fuel, ammunition & stores: 188 tons, 15.7 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 1.3

Remarks:
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.25
Shellfire needed to sink: 293 lbs / 133 Kg = 7.4 x 4.3 " / 109 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 0.2
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 83 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.37
Relative quality as seaboat: 1.11

Hull form characteristics:
Block coefficient: 0.410
Sharpness coefficient: 0.30
Hull speed coefficient 'M': 8.77
'Natural speed' for length: 17.46 kts
Power going to wave formation at top speed: 65 %
Trim: 75
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 172.4 %
Relative accommodation and working space: 98.2 %
(Average = 100%)
Displacement factor: 58 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.46
(Structure weight / hull surface area: 28 lbs / square foot or 135 Kg / square metre)
Relative longitudinal hull strength: 1.14
(for 13.00 ft / 3.96 m average freeboard, freeboard adjustment 3.09 ft)
Relative composite hull strength: 0.50


See what you think. Is this even remotely possible for a long range destroyer?

2

Monday, September 27th 2004, 7:45am

Relative cross-sectional hull strength: 0.46

we have an internal rule that says "none of the three strength must be below 50%". Yes that makes it rather hard ....

3

Monday, September 27th 2004, 9:14am

What about this instead?

Will this work then?


Capitan Herlock, Chile Destroyer laid down 1914

Displacement:
1,096 t light; 1,132 t standard; 1,300 t normal; 1,429 t full load
Loading submergence 145 tons/feet

Dimensions:
315.00 ft x 28.00 ft x 11.75 ft (normal load)
96.01 m x 8.53 m x 3.58 m

Armament:
3 - 4.30" / 109 mm guns (3 Main turrets x 1 guns)
2 - 1.46" / 37 mm AA guns
2 - 1.90" / 48 mm guns
Weight of broadside 129 lbs / 59 kg
4 - 18.0" / 457.2 mm above water torpedoes

Armour:
Main turrets 0.50" / 13 mm
Armour deck 1.00" / 25 mm, Conning tower 4.50" / 114 mm

Machinery:
Coal and oil fired boilers, steam turbines,
Direct drive, 2 shafts, 23,265 shp / 17,356 Kw = 30.00 kts
Range 6,400nm at 10.00 kts

Complement:
108 - 140

Cost:
£0.183 million / $0.732 million

Distribution of weights at normal displacement:
Armament: 16 tons, 1.2 %
Armour: 114 tons, 8.8 %
Belts: 0 tons, 0.0 %, Armament: 9 tons, 0.7 %, Armour Deck: 94 tons, 7.2 %
Conning Tower: 11 tons, 0.9 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 656 tons, 50.4 %
Hull, fittings & equipment: 309 tons, 23.8 %
Fuel, ammunition & stores: 204 tons, 15.7 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 1.0

Remarks:
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.17
Shellfire needed to sink: 324 lbs / 147 Kg = 8.2 x 4.3 " / 109 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 0.2
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 95 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.56
Relative quality as seaboat: 1.26

Hull form characteristics:
Block coefficient: 0.439
Sharpness coefficient: 0.30
Hull speed coefficient 'M': 8.82
'Natural speed' for length: 17.75 kts
Power going to wave formation at top speed: 64 %
Trim: 75
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 172.4 %
Relative accommodation and working space: 91.5 %
(Average = 100%)
Displacement factor: 61 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.51
(Structure weight / hull surface area: 29 lbs / square foot or 143 Kg / square metre)
Relative longitudinal hull strength: 1.19
(for 13.25 ft / 4.04 m average freeboard, freeboard adjustment 3.18 ft)
Relative composite hull strength: 0.55

4

Monday, September 27th 2004, 9:43am

yes she will and you know, I quite like her. I am not sure that in period a destroyer would have had that kind of seakeeping OTOH given the waters the Chilean Navy operates in, it makes sense.

5

Monday, September 27th 2004, 10:09am

Drop the freeboard just a bit...

You don't need 1.26 seakeeping to get "good seaboat". 1.2 will do that just fine, and in return you'll get more cross-sectional hull strength, so you can add a bit of miscellaneous weight for anti-submarine work.

I agree that good seakeeping is important in the rough waters around southern Chile.

At the ranges destroyer combat hapens, deck hits are rare, and belt hits can't really be defended against, so deck or belt armor on a destroyer dosen't really help. Use the weight for more speed.

Capitan Herlock, Chilean/Nordmark Destroyer laid down 1914

Displacement:
1,089 t light; 1,129 t standard; 1,300 t normal; 1,431 t full load
Loading submergence 145 tons/feet

Dimensions:
315.00 ft x 28.00 ft x 11.75 ft (normal load)
96.01 m x 8.53 m x 3.58 m

Armament:
4 - 4.30" / 109 mm guns
2 - 1.46" / 37 mm guns
2 - 1.90" / 48 mm AA guns
Weight of broadside 169 lbs / 77 kg
4 - 18.0" / 457.2 mm above water torpedoes

Armour:

Conning tower 4.00" / 102 mm

Machinery:
Coal and oil fired boilers, steam turbines,
Geared drive, 2 shafts, 26,731 shp / 19,941 Kw = 31.00 kts
Range 6,700nm at 10.00 kts

Complement:
108 - 140

Cost:
£0.194 million / $0.775 million

Distribution of weights at normal displacement:
Armament: 21 tons, 1.6 %
Armour: 10 tons, 0.8 %
Belts: 0 tons, 0.0 %, Armament: 0 tons, 0.0 %, Armour Deck: 0 tons, 0.0 %
Conning Tower: 10 tons, 0.8 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 688 tons, 52.9 %
Hull, fittings & equipment: 320 tons, 24.6 %
Fuel, ammunition & stores: 211 tons, 16.2 %
Miscellaneous weights: 50 tons, 3.8 %

Metacentric height 1.2

Remarks:
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.28
Shellfire needed to sink: 292 lbs / 132 Kg = 7.3 x 4.3 " / 109 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 0.2
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 70 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.28
Relative quality as seaboat: 1.20

Hull form characteristics:
Block coefficient: 0.439
Sharpness coefficient: 0.30
Hull speed coefficient 'M': 8.82
'Natural speed' for length: 17.75 kts
Power going to wave formation at top speed: 66 %
Trim: 58
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 187.4 %
Relative accommodation and working space: 93.9 %
(Average = 100%)
Displacement factor: 54 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.50
(Structure weight / hull surface area: 30 lbs / square foot or 147 Kg / square metre)
Relative longitudinal hull strength: 1.28
(for 13.60 ft / 4.15 m average freeboard, freeboard adjustment 3.53 ft)
Relative composite hull strength: 0.55



Good start on a difficult specification. Destroyers are a pain to simulate.

6

Tuesday, September 28th 2004, 5:19am

Something like this then?

Would this be possible?

Originally a class of four built for the Chilean Navy by Nordmark. Retained for Nordmark service in Great War. Two lost in one of the many battles in the Atlantic and Baltic. Remaining two returned to Chile after the war ends.

Capitan Herlock
Capitan Avatar
Capitan Zero - lost in Nordmark service
Capitan Gideon - lost in Nordmark service

Capitan Herlock, Chilean/Nordmark Destroyer laid down 1914

Displacement:
1,087 t light; 1,129 t standard; 1,300 t normal; 1,432 t full load
Loading submergence 145 tons/feet

Dimensions:
315.00 ft x 28.00 ft x 11.75 ft (normal load)
96.01 m x 8.53 m x 3.58 m

Armament:
4 - 4.30" / 109 mm guns (4 Main turrets x 1 guns, 2 superfiring turrets)
1 - 3.00" / 76 mm DP guns (1 2nd turrets x 1 guns)
2 - 1.46" / 37 mm AA guns
2 - 1.90" / 48 mm guns
Weight of broadside 182 lbs / 83 kg
4 - 18.0" / 457.2 mm above water torpedoes in twin mounts

Armour:

Conning tower 5.00" / 127 mm

Machinery:
Coal and oil fired boilers, steam turbines,
Direct drive, 2 shafts, 23,263 shp / 17,354 Kw = 30.00 kts
Range 6,500nm at 10.00 kts

Complement:
108 - 140

Cost:
£0.190 million / $0.758 million

Distribution of weights at normal displacement:
Armament: 23 tons, 1.8 %
Armour: 13 tons, 1.0 %
Belts: 0 tons, 0.0 %, Armament: 0 tons, 0.0 %, Armour Deck: 0 tons, 0.0 %
Conning Tower: 13 tons, 1.0 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 655 tons, 50.4 %
Hull, fittings & equipment: 347 tons, 26.7 %
Fuel, ammunition & stores: 213 tons, 16.4 %
Miscellaneous weights: 50 tons, 3.8 %
Far Anti-sub work plus other equipment.

Metacentric height 1.0

Remarks:
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.20
Shellfire needed to sink: 322 lbs / 146 Kg = 8.1 x 4.3 " / 109 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 0.2
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 75 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.65
Relative quality as seaboat: 1.22

Hull form characteristics:
Block coefficient: 0.439
Sharpness coefficient: 0.30
Hull speed coefficient 'M': 8.82
'Natural speed' for length: 17.75 kts
Power going to wave formation at top speed: 64 %
Trim: 61
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 180.3 %
Relative accommodation and working space: 91.5 %
(Average = 100%)
Displacement factor: 61 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.54
(Structure weight / hull surface area: 33 lbs / square foot or 161 Kg / square metre)
Relative longitudinal hull strength: 1.32
(for 13.25 ft / 4.04 m average freeboard, freeboard adjustment 3.18 ft)
Relative composite hull strength: 0.59

7

Tuesday, September 28th 2004, 12:26pm

Nice

That will do nicely.

8

Tuesday, September 28th 2004, 3:27pm

Nice, but -

The 4.3" and 3" guns should not be in turrets. Aside from being (the dreaded) 'Too Modern', those barbettes eat up a lot of space and weight...

Try simming them as deck mounts, with shields (or in 2.0.1, 'Deck Mounts with Hoists') and see how she looks.

9

Wednesday, September 29th 2004, 3:13am

Quoted

Try simming them as deck mounts, with shields (or in 2.0.1, 'Deck Mounts with Hoists') and see how she looks.


I'd rather not actually (I did, but the results didn't come in my favor in terms of seakeeping verse Cross-sectional strength, the best I could to was 1.17 vs 0.50) I'd have to redo the hull again to get better seakeeping, or tweek on the freeboard for a few hours.

How many shells would the each main battery on a 1914 destroyer leader carry anyway?