WesWorld

Quoted

Originally posted by Jefgte
When you have a low construction potential, versatility is the way to increase his defensive or offensive power.

I absolutely agree, but these designs seem to be taking a good thing too far, which is what I mean by my comment.

In my opinion, trying to add mission capabilities to a small hull like this causes the small crew to be pulled between too many competing directions. Each capability that's added reduces the crew's ability to handle other missions (sometimes by a slight factor, but an extant one nevertheless). Thus when it comes time to conduct the main mission, the ship's capabilities have already been compromised to a lower state. That's why, when I play smaller countries like Bulgaria and Ireland, I resist the trap of making my ships 'too multipurpose'. It's better to spend just a little bit more funds to make something that does its main job well , even if it does fewer side-jobs along the way.

Even for harbour defence those torpedoes are no use against an enemy bombardment force unless they are close inshore. In open waters a 19kts boat is easy meat, especially when you face a Chilean foe with modern radar-assisted fire-control.

Argentina attempted a fleet of fast coastal torpedo boats. During the SA War they were wiped out...

When I designed the Mehrzweckboote 1940 I had two thoughts in mind - to employ them in coastal waters in the Baltic in support of Motor Torpedo Boats, and to test whether it was possible to design in Springsharp a useful warship under 300 tons light.

For use in confined waters I think the design works, and would prove tactically useful; and I think I achieved my other goal. However, I only built a quartet of them, though in wartime the design could be revived.

Peru faces the open ocean, such a small multipurpose craft has limited usefulness in such conditions. I recognize the difficulty that a nation with small shipbuilding capacity has - just let me put on my Yugoslav hat. But if reasonably consistent choices are made, a small nation can devise a reasonable navy for its needs, even with Peru's capability.

The problem is that Peru's ambitions do not seem to match Peru's ability to produce warships domestically. As the latter are rather fixed, perhaps it is the ambitions that need to change.

More classic approach.

200t-Minesweeper, Peru Mineswweper laid down 1944

Displacement:
200 t light; 211 t standard; 265 t normal; 307 t full load

Dimensions: Length overall / water x beam x draught
150.09 ft / 144.36 ft x 22.31 ft x 6.12 ft (normal load)
45.75 m / 44.00 m x 6.80 m x 1.87 m

Armament:
1 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1944 Model
Quick firing gun in deck mount
on centreline forward
2 - 0.98" / 25.0 mm guns (1x2 guns), 0.48lbs / 0.22kg shells, 1944 Model
Machine guns in deck mount
on centreline forward, all raised guns - superfiring
4 - 0.98" / 25.0 mm guns (2x2 guns), 0.48lbs / 0.22kg shells, 1944 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 38 lbs / 17 kg
Shells per gun, main battery: 250

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.59" / 15 mm - -
2nd: 0.59" / 15 mm - -

Machinery:
Diesel Internal combustion motors,
Geared drive, 1 shaft, 1 173 shp / 875 Kw = 17.38 kts
Range 4 000nm at 15.00 kts
Bunker at max displacement = 96 tons

Complement:
32 - 42

Cost:
£0.102 million / $0.409 million

Distribution of weights at normal displacement:
Armament: 5 tons, 1.8 %
Armour: 1 tons, 0.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1 tons, 0.6 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 30 tons, 11.3 %
Hull, fittings & equipment: 104 tons, 39.2 %
Fuel, ammunition & stores: 65 tons, 24.4 %
Miscellaneous weights: 60 tons, 22.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
507 lbs / 230 Kg = 14.3 x 4.1 " / 105 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 0.6 ft / 0.2 m
Roll period: 12.4 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.15
Seaboat quality (Average = 1.00): 1.27

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.470
Length to Beam Ratio: 6.47 : 1
'Natural speed' for length: 14.30 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 56
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 15.75 ft / 4.80 m
- Forecastle (20 %): 11.15 ft / 3.40 m
- Mid (35 %): 7.87 ft / 2.40 m
- Quarterdeck (18 %): 7.22 ft / 2.20 m
- Stern: 7.22 ft / 2.20 m
- Average freeboard: 8.87 ft / 2.70 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 76.9 %
- Above water (accommodation/working, high = better): 103.7 %
Waterplane Area: 2 171 Square feet or 202 Square metres
Displacement factor (Displacement / loading): 166 %
Structure weight / hull surface area: 28 lbs/sq ft or 138 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.85
- Longitudinal: 4.40
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

10 tons Asdic +
30 tons for paravanes & sweeping stuff
10 tons for 30 DC
10 tons reserve

...

200t-Chasser Class, Peru Sub Chasser laid down 1944

Displacement:
200 t light; 212 t standard; 266 t normal; 310 t full load

Dimensions: Length overall / water x beam x draught
143.53 ft / 137.80 ft x 22.97 ft x 6.27 ft (normal load)
43.75 m / 42.00 m x 7.00 m x 1.91 m

Armament:
1 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1944 Model
Quick firing gun in deck mount
on centreline forward
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Quick firing guns in deck mounts
on centreline, all aft, all raised mounts - superfiring
4 - 0.98" / 25.0 mm guns (2x2 guns), 0.48lbs / 0.22kg shells, 1944 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 43 lbs / 20 kg
Shells per gun, main battery: 250

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.59" / 15 mm - -
2nd: 0.59" / 15 mm - -

Machinery:
Diesel Internal combustion motors,
Geared drive, 1 shaft, 1 387 shp / 1 035 Kw = 18.00 kts
Range 4 000nm at 15.00 kts
Bunker at max displacement = 98 tons

Complement:
32 - 42

Cost:
£0.111 million / $0.444 million

Distribution of weights at normal displacement:
Armament: 5 tons, 2.0 %
Armour: 3 tons, 1.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 1.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 35 tons, 13.3 %
Hull, fittings & equipment: 106 tons, 39.8 %
Fuel, ammunition & stores: 67 tons, 25.1 %
Miscellaneous weights: 50 tons, 18.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
487 lbs / 221 Kg = 13.8 x 4.1 " / 105 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.02
Metacentric height 0.6 ft / 0.2 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.18
Seaboat quality (Average = 1.00): 1.10

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.470
Length to Beam Ratio: 6.00 : 1
'Natural speed' for length: 14.08 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 64
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 15.75 ft / 4.80 m
- Forecastle (20 %): 11.15 ft / 3.40 m
- Mid (50 %): 7.87 ft / 2.40 m
- Quarterdeck (18 %): 7.22 ft / 2.20 m
- Stern: 7.22 ft / 2.20 m
- Average freeboard: 9.17 ft / 2.79 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 81.2 %
- Above water (accommodation/working, high = better): 107.9 %
Waterplane Area: 2 133 Square feet or 198 Square metres
Displacement factor (Displacement / loading): 160 %
Structure weight / hull surface area: 29 lbs/sq ft or 143 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.83
- Longitudinal: 5.19
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

10 tons Asdic +
30 tons for 90 DC
10 tons reserve

A possible DD with SS3 displacement increase to 1400t with SS2

DD, Peru 1400t laid down 1944

Displacement:
1 364 t light; 1 436 t standard; 1 639 t normal; 1 801 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(360.16 ft / 354.33 ft) x 33.46 ft x (12.47 / 13.23 ft)
(109.78 m / 108.00 m) x 10.20 m x (3.80 / 4.03 m)

Armament:
4 - 4.72" / 120 mm 45.0 cal guns - 53.17lbs / 24.12kg shells, 330 per gun
Breech loading guns in deck and hoist mounts, 1944 Model
2 x Single mounts on centreline, evenly spread
4 - 1.46" / 37.0 mm 45.0 cal guns - 1.56lbs / 0.71kg shells, 150 per gun
Anti-air guns in deck mounts, 1944 Model
4 x Twin mounts on centreline, aft deck forward
8 - 0.98" / 25.0 mm 45.0 cal guns - 0.48lbs / 0.22kg shells, 150 per gun
Machine guns in deck mounts, 1944 Model
4 x Twin mounts on centreline, aft deck forward
4 raised mounts
Weight of broadside 223 lbs / 101 kg
Main Torpedoes
8 - 21.0" / 533 mm, 8.00 ft / 2.44 m torpedoes - 0.689 t each, 5.513 t total
In 2 sets of deck mounted centre rotating tubes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.79" / 20 mm - -
2nd: 0.59" / 15 mm - -
3rd: 0.59" / 15 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 36 000 shp / 26 856 Kw = 33.58 kts
Range 5 000nm at 15.00 kts
Bunker at max displacement = 365 tons

Complement:
128 - 167

Cost:
£1.199 million / $4.795 million

Distribution of weights at normal displacement:
Armament: 71 tons, 4.3 %
- Guns: 60 tons, 3.6 %
- Weapons: 11 tons, 0.7 %
Armour: 8 tons, 0.5 %
- Armament: 8 tons, 0.5 %
Machinery: 781 tons, 47.7 %
Hull, fittings & equipment: 463 tons, 28.3 %
Fuel, ammunition & stores: 275 tons, 16.8 %
Miscellaneous weights: 40 tons, 2.4 %
- On freeboard deck: 30 tons
- Above deck: 10 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
491 lbs / 223 Kg = 9.3 x 4.7 " / 120 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 1.2 ft / 0.4 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.43
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has a flush deck,
a normal bow and small transom stern
Block coefficient (normal/deep): 0.388 / 0.402
Length to Beam Ratio: 10.59 : 1
'Natural speed' for length: 20.32 kts
Power going to wave formation at top speed: 65 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 16.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 20.34 ft / 6.20 m, 15.75 ft / 4.80 m
- Forward deck: 30.00 %, 15.75 ft / 4.80 m, 13.12 ft / 4.00 m
- Aft deck: 30.00 %, 13.12 ft / 4.00 m, 12.47 ft / 3.80 m
- Quarter deck: 20.00 %, 12.47 ft / 3.80 m, 12.47 ft / 3.80 m
- Average freeboard: 14.18 ft / 4.32 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 167.3 %
- Above water (accommodation/working, high = better): 134.5 %
Waterplane Area: 7 405 Square feet or 688 Square metres
Displacement factor (Displacement / loading): 78 %
Structure weight / hull surface area: 35 lbs/sq ft or 169 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.80
- Overall: 0.57
Cramped machinery, storage, compartmentation space
Excellent accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform

20t DC
10t Radar
10t reserve

These two designs - the minesweeper and the subchaser - are far more plausible in their armament and their layout.

The designs are workmanlike if not remarkable.

The separate minesweeper and subchaser designs make much more sense.

I'm afraid the destroyer is not permissible in SS3 form because we've already elected to only use SS2 for all ship designs.
Generally it looks ok, a bit low on gun-power perhaps but a cheap and serviceable destroyer.

Even if it was allowed, I'd thow more 37 and 25mm rounds on the ship. 150 rounds per gun isn't much.

Quoted

Originally posted by Hood
I'm afraid the destroyer is not permissible in SS3 form because we've already elected to only use SS2 for all ship designs.

Quoted for truth.

Quoted

Originally posted by BruceDuncan
These two designs - the minesweeper and the subchaser - are far more plausible in their armament and their layout.

The designs are workmanlike if not remarkable.

Seconded. I think letting the ships concentrate on their respective roles is a far better use of limited resources.

Like I wrote the DD must be reSS from SS3 to SS2
She could be updated from 4T1x120 to 5T1x120 to be perfectly balanced: guns/torpedoes.

Big DDs cost too much & Peru had much of them
Peru start a class of "Defender DDs" with more classic performances

1440t, Peru, Class Almirante Deganio laid down 1944

Displacement:
1 440 t light; 1 553 t standard; 1 762 t normal; 1 929 t full load

Dimensions: Length overall / water x beam x draught
393.62 ft / 387.14 ft x 36.09 ft x 11.37 ft (normal load)
119.98 m / 118.00 m x 11.00 m x 3.47 m

Armament:
6 - 4.72" / 120 mm guns (3x2 guns), 52.72lbs / 23.91kg shells, 1944 Model
Quick firing guns in deck mounts with hoists
on centreline ends, majority forward, 1 raised mount - superfiring
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
16 - 0.98" / 25.0 mm guns (4x4 guns), 0.48lbs / 0.22kg shells, 1944 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
4 - 0.31" / 8.0 mm guns in single mounts, 0.02lbs / 0.01kg shells, 1944 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 336 lbs / 153 kg
Shells per gun, main battery: 400
10 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.39" / 10 mm 0.98" / 25 mm
2nd: 0.98" / 25 mm - -
3rd: 0.39" / 10 mm - -

- Conning tower: 1.97" / 50 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 32 000 shp / 23 872 Kw = 33.24 kts
Range 5 500nm at 15.00 kts
Bunker at max displacement = 375 tons

Complement:
135 - 176

Cost:
£1.270 million / $5.078 million

Distribution of weights at normal displacement:
Armament: 42 tons, 2.4 %
Armour: 20 tons, 1.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 14 tons, 0.8 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 6 tons, 0.4 %
Machinery: 736 tons, 41.8 %
Hull, fittings & equipment: 561 tons, 31.9 %
Fuel, ammunition & stores: 322 tons, 18.3 %
Miscellaneous weights: 80 tons, 4.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
598 lbs / 271 Kg = 11.3 x 4.7 " / 120 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.16
Metacentric height 1.4 ft / 0.4 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.54
Seaboat quality (Average = 1.00): 1.03

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.388
Length to Beam Ratio: 10.73 : 1
'Natural speed' for length: 22.67 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 69
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 2.30 ft / 0.70 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.69 ft / 6.00 m
- Forecastle (20 %): 16.08 ft / 4.90 m
- Mid (50 %): 13.12 ft / 4.00 m
- Quarterdeck (20 %): 12.47 ft / 3.80 m
- Stern: 12.47 ft / 3.80 m
- Average freeboard: 14.22 ft / 4.33 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 161.3 %
- Above water (accommodation/working, high = better): 86.9 %
Waterplane Area: 8 869 Square feet or 824 Square metres
Displacement factor (Displacement / loading): 85 %
Structure weight / hull surface area: 36 lbs/sq ft or 176 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.29
- Overall: 0.55
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform

10 tons for Radar
10 tons Asdic
20 tons DC
40 mines

The latest 1440 ton destroyer design seems to be acceptable per our rules, though maybe on the cusp. I really think that she is over-armed with three twin mounts for 120mm guns; on a hull that size I would personally have held the armament to four single 120mm. And, FWIW, they ought to be specified as DP unless you are deliberately limiting yourself to LA guns

As a seaboat she is barely above average, and I tend to prefer more. Her bloc coefficient is knife-edge and here LB ratio extreme. I don't see her as being the best possible design on that tonnage.

TBD, Peru Destroyer laid down 1944

Displacement:
1,490 t light; 1,554 t standard; 1,761 t normal; 1,927 t full load

Dimensions: Length overall / water x beam x draught
368.06 ft / 360.89 ft x 36.09 ft x 11.48 ft (normal load)
112.18 m / 110.00 m x 11.00 m x 3.50 m

Armament:
4 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.92kg shells, 1944 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
4 - 0.31" / 8.0 mm guns in single mounts, 0.02lbs / 0.01kg shells, 1944 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 223 lbs / 101 kg
Shells per gun, main battery: 225
10 - 21.0" / 533 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.59" / 15 mm 0.59" / 15 mm
2nd: 0.59" / 15 mm - -

- Conning tower: 1.97" / 50 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 28,841 shp / 21,515 Kw = 32.00 kts
Range 5,500nm at 15.00 kts
Bunker at max displacement = 372 tons

Complement:
135 - 176

Cost:
£1.194 million / $4.775 million

Distribution of weights at normal displacement:
Armament: 28 tons, 1.6 %
Armour: 18 tons, 1.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 12 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 6 tons, 0.4 %
Machinery: 728 tons, 41.3 %
Hull, fittings & equipment: 636 tons, 36.1 %
Fuel, ammunition & stores: 271 tons, 15.4 %
Miscellaneous weights: 80 tons, 4.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
820 lbs / 372 Kg = 15.5 x 4.7 " / 120 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 1.3 ft / 0.4 m
Roll period: 13.3 seconds
Steadiness - As gun platform (Average = 50 %): 78 %
- Recoil effect (Restricted arc if above 1.00): 0.47
Seaboat quality (Average = 1.00): 1.15

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.412
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 21.93 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 68
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.69 ft / 6.00 m
- Forecastle (20 %): 17.06 ft / 5.20 m
- Mid (50 %): 14.44 ft / 4.40 m
- Quarterdeck (15 %): 14.44 ft / 4.40 m
- Stern: 14.44 ft / 4.40 m
- Average freeboard: 15.56 ft / 4.74 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 151.4 %
- Above water (accommodation/working, high = better): 83.9 %
Waterplane Area: 8,384 Square feet or 779 Square metres
Displacement factor (Displacement / loading): 98 %
Structure weight / hull surface area: 40 lbs/sq ft or 197 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.59
- Longitudinal: 2.17
- Overall: 0.67
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform

Actually, I'd go with Jefgte's DD design here. His design, although block coefficient really is at the edge, perfectly fits our rules and makes full use of our hull strength rules. Accepting less is no wise decision in the face of limited resources. Also, Bruce' design has fewer main guns (with fewer shells per rifle), much weaker light AA and reduced speed - all essential for a DD, methinks. In return additional sea keeping is gained but actually does little good. The original design is not limited by heavy seas already, and I don't think one has to be obsessed by sea boat rating. Historically almost all DD designs suffered reduced performance in heavy sea. No surprise. That would translate into a sea boat rating of 0,8 to 1,00 in SS2 - but you rarely see somebody accept this in WesWorld. Anyway, it is why I think a sea boat rating just at the edge of 1,00 is perfectly fine.

My questions:
- Why a 50mm coning tower on a DD?
- SS2 does not calculate torpedos well. 2x5 TT seems a lot given the number of gun mounts you need to place on deck. Why such a heavy TT battery on a relatively small multi-purpose warship? I'd go with 1x5 TT, still enough for a powerful spread but less problems with weight and space.
- Isn't 80 tons of misc weight more than you actually need?

Deganio class is an economical type.
This is a reduction of the last Teniente Vasquez II 1942 - 1871t.

Lighter choice about speed & weight of engines
1092T for 35kts => 736t for 33kts => economie 356t.
So, I think that instal 2T2x120 is enough.
Identical TT & turret than Teniente Vasquez II...
same coning tower too.

Jef

The 12 DDs in the 1944-1948 plan:


1400t, Peru Almirante Deganio laid down 1944

Displacement:
1 400 t light; 1 488 t standard; 1 710 t normal; 1 889 t full load

Dimensions: Length overall / water x beam x draught
393.62 ft / 387.14 ft x 36.09 ft x 10.71 ft (normal load)
119.98 m / 118.00 m x 11.00 m x 3.27 m

Armament:
4 - 4.72" / 120 mm guns (2x2 guns), 52.72lbs / 23.91kg shells, 1944 Model
Dual purpose guns in deck mounts with hoists
on centreline, evenly spread
6 - 1.46" / 37.0 mm guns (3x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on centreline ends, majority aft, all raised mounts - superfiring
16 - 0.98" / 25.0 mm guns (4x4 guns), 0.48lbs / 0.22kg shells, 1944 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 228 lbs / 103 kg
Shells per gun, main battery: 400
10 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.39" / 10 mm -
2nd: 0.98" / 25 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

- Conning tower: 1.97" / 50 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 32 800 shp / 24 469 Kw = 33.53 kts
Range 6 000nm at 15.00 kts
Bunker at max displacement = 401 tons

Complement:
132 - 172

Cost:
£1.202 million / $4.809 million

Distribution of weights at normal displacement:
Armament: 28 tons, 1.7 %
Armour: 17 tons, 1.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 11 tons, 0.6 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 6 tons, 0.4 %
Machinery: 756 tons, 44.2 %
Hull, fittings & equipment: 519 tons, 30.3 %
Fuel, ammunition & stores: 311 tons, 18.2 %
Miscellaneous weights: 80 tons, 4.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
591 lbs / 268 Kg = 11.2 x 4.7 " / 120 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.23
Metacentric height 1.6 ft / 0.5 m
Roll period: 12.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.31
Seaboat quality (Average = 1.00): 1.02

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.400
Length to Beam Ratio: 10.73 : 1
'Natural speed' for length: 22.63 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 69
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 2.30 ft / 0.70 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.69 ft / 6.00 m
- Forecastle (20 %): 16.08 ft / 4.90 m
- Mid (50 %): 13.12 ft / 4.00 m
- Quarterdeck (20 %): 12.47 ft / 3.80 m
- Stern: 12.47 ft / 3.80 m
- Average freeboard: 14.22 ft / 4.33 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 162.8 %
- Above water (accommodation/working, high = better): 89.4 %
Waterplane Area: 8 925 Square feet or 829 Square metres
Displacement factor (Displacement / loading): 86 %
Structure weight / hull surface area: 34 lbs/sq ft or 164 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.22
- Overall: 0.54
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform

10 tons for Radar
10 tons Asdic
20 tons DC
40 mines

The first calculations for 2 PBBs give:
LD:1946 & 1949
Com: end 1948 & end 1951
dispo: 13700tl in the plan

With actual SS:13481t
190x23
2T2x350+2T2x203 (203 Dispo from the canceled escort cruiser)
boardside: 2994kg
B180-50
BKH45
D50
T230-152
30kts - 6000nm@15kts
Survivability: 10923kg

I'm having a bit of a difficult time understanding your shorthand. Can you please use some more communicative method of showing the information you want to convey?

I get the shorthand, but not the underlying utility of the resulting ships.