WesWorld

Let me know if anything wrong on the design. I guess my naval mission is trying to buy the Poseidon plus present this design to the Atlanteans to counter the Peruvian coastal ships. I guess two of them should be ok.

Again let me know if anything wrong.


Barranquilla, Colombia Coastal Battleship laid down 1933

Displacement:
9,747 t light; 10,361 t standard; 10,621 t normal; 10,830 t full load

Dimensions: Length overall / water x beam x draught
558.00 ft / 558.00 ft x 72.20 ft x 16.90 ft (normal load)
170.08 m / 170.08 m x 22.01 m x 5.15 m

Armament:
3 - 14.00" / 356 mm guns (1x3 guns), 1,372.00lbs / 622.33kg shells, 1933 Model
Breech loading guns in a turret (on a barbette)
on centreline forward
2 - 6.00" / 152 mm guns (1x2 guns), 108.00lbs / 48.99kg shells, 1933 Model
Breech loading guns in a turret (on a barbette)
on centreline forward, raised mount superfiring.
4 - 4.50" / 114 mm guns in single mounts, 45.56lbs / 20.67kg shells, 1933 Model
Breech loading guns in deck mounts
on side, evenly spread
4 - 4.50" / 114 mm guns in single mounts, 45.56lbs / 20.67kg shells, 1933 Model
Breech loading guns in deck mounts
on centreline, all aft
8 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1933 Model
Anti-aircraft guns in deck mounts with hoists
on side, evenly spread
Weight of broadside 4,698 lbs / 2,131 kg
Shells per gun, main battery: 150

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 6.00" / 152 mm - 6.00" / 152 mm
2nd: 4.00" / 102 mm - 4.00" / 102 mm
3rd: 0.50" / 13 mm - -
4th: 0.50" / 13 mm - -

- Armour deck: 1.20" / 30 mm, Conning tower: 6.00" / 152 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 3 shafts, 37,703 shp / 28,126 Kw = 25.31 kts
Range 4,000nm at 10.00 kts
Bunker at max displacement = 470 tons

Complement:
523 - 680

Cost:
£4.672 million / $18.687 million

Distribution of weights at normal displacement:
Armament: 587 tons, 5.5 %
Armour: 1,062 tons, 10.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 378 tons, 3.6 %
- Armour Deck: 622 tons, 5.9 %
- Conning Tower: 62 tons, 0.6 %
Machinery: 1,099 tons, 10.3 %
Hull, fittings & equipment: 6,998 tons, 65.9 %
Fuel, ammunition & stores: 875 tons, 8.2 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
16,074 lbs / 7,291 Kg = 11.7 x 14.0 " / 356 mm shells or 2.4 torpedoes
Stability (Unstable if below 1.00): 1.07
Metacentric height 3.5 ft / 1.1 m
Roll period: 16.2 seconds
Steadiness - As gun platform (Average = 50 %): 79 %
- Recoil effect (Restricted arc if above 1.00): 0.67
Seaboat quality (Average = 1.00): 1.16

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.546
Length to Beam Ratio: 7.73 : 1
'Natural speed' for length: 23.62 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 68
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.98 ft / 7.92 m
- Forecastle (20 %): 16.54 ft / 5.04 m
- Mid (50 %): 16.54 ft / 5.04 m
- Quarterdeck (15 %): 16.54 ft / 5.04 m
- Stern: 16.54 ft / 5.04 m
- Average freeboard: 17.30 ft / 5.27 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 76.8 %
- Above water (accommodation/working, high = better): 168.7 %
Waterplane Area: 28,011 Square feet or 2,602 Square metres
Displacement factor (Displacement / loading): 133 %
Structure weight / hull surface area: 184 lbs/sq ft or 897 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.28
- Longitudinal: 1.90
- Overall: 1.33
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

While you have an adequate speed advantage to pick a fight with just Lima, you have only a small (1.41kt) margin over Huascar, which is not sufficient. If you want a 'good' margin, try for three knots advantage, or about 27kts.

The 14" is logical, as Posidean has that. However, only having only 3 guns and a single turret is poor for fire control and subject to having your entire battery knocked out in a hit. The last is particularly likely as the armor is far more on a cruiser scale than a battleship.

I think in order to be useful, she should have more barrels. The armor/speed mix is up to what you expect her to do tactically. She could be slow, and operate only with Posidean with more armor, or she could have speed to avoid lima/huascar and keep her cruiser armor, or some other mix.

Two twin 14" turrets from Posiedons sister ship Aggamemnon, now a training ship, would likely make for a better battery for a coastal BB and would make logistics a breeze. It would however limit the design to specs that would suit the turrets.

The frightening thing however is the complete lack of belt armor, it would be a good thing to cover up those 14" shell magazines.

Quoted

Originally posted by Kaiser Kirk
While you have an adequate speed advantage to pick a fight with just Lima, you have only a small (1.41kt) margin over Huascar, which is not sufficient. If you want a 'good' margin, try for three knots advantage, or about 27kts.

The 14" is logical, as Posidean has that. However, only having only 3 guns and a single turret is poor for fire control and subject to having your entire battery knocked out in a hit. The last is particularly likely as the armor is far more on a cruiser scale than a battleship.

I think in order to be useful, she should have more barrels. The armor/speed mix is up to what you expect her to do tactically. She could be slow, and operate only with Posidean with more armor, or she could have speed to avoid lima/huascar and keep her cruiser armor, or some other mix.

I changed the main battery to two dual turrets forward and moved the secondary 6" turret to aft. If they were build I was thinking of two of them, operating together.

Again, thanks for your input. Learning the ropes.Check the new version

Barranquilla, Colombia Coastal Battleship laid down 1933

Displacement:
9,632 t light; 10,361 t standard; 10,621 t normal; 10,830 t full load

Dimensions: Length overall / water x beam x draught
558.00 ft / 558.00 ft x 72.20 ft x 16.90 ft (normal load)
170.08 m / 170.08 m x 22.01 m x 5.15 m

Armament:
4 - 14.00" / 356 mm guns (2x2 guns), 1,372.00lbs / 622.33kg shells, 1933 Model
Breech loading guns in turrets (on barbettes)
on centreline, all forward, 1 raised mount-superfiring
2 - 6.00" / 152 mm guns (1x2 guns), 108.00lbs / 48.99kg shells, 1933 Model
Breech loading guns in a turret (on a barbette)
on centreline aft
4 - 4.50" / 114 mm guns in single mounts, 45.56lbs / 20.67kg shells, 1933 Model
Breech loading guns in deck mounts
on side, evenly spread
4 - 4.50" / 114 mm guns in single mounts, 45.56lbs / 20.67kg shells, 1933 Model
Breech loading guns in deck mounts
on centreline, all aft
8 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1933 Model
Anti-aircraft guns in deck mounts with hoists
on side, evenly spread
Weight of broadside 6,070 lbs / 2,753 kg
Shells per gun, main battery: 150

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 6.00" / 152 mm - 6.00" / 152 mm
2nd: 4.00" / 102 mm - 4.00" / 102 mm
3rd: 0.50" / 13 mm - -
4th: 0.50" / 13 mm - -

- Armour deck: 1.20" / 30 mm, Conning tower: 6.00" / 152 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 3 shafts, 37,703 shp / 28,126 Kw = 25.31 kts
Range 4,000nm at 10.00 kts
Bunker at max displacement = 470 tons

Complement:
523 - 680

Cost:
£5.334 million / $21.336 million

Distribution of weights at normal displacement:
Armament: 759 tons, 7.1 %
Armour: 1,248 tons, 11.7 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 563 tons, 5.3 %
- Armour Deck: 622 tons, 5.9 %
- Conning Tower: 62 tons, 0.6 %
Machinery: 1,099 tons, 10.3 %
Hull, fittings & equipment: 6,527 tons, 61.5 %
Fuel, ammunition & stores: 989 tons, 9.3 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
13,725 lbs / 6,226 Kg = 10.0 x 14.0 " / 356 mm shells or 2.0 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 3.4 ft / 1.0 m
Roll period: 16.5 seconds
Steadiness - As gun platform (Average = 50 %): 78 %
- Recoil effect (Restricted arc if above 1.00): 0.88
Seaboat quality (Average = 1.00): 1.14

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.546
Length to Beam Ratio: 7.73 : 1
'Natural speed' for length: 23.62 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 68
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.98 ft / 7.92 m
- Forecastle (20 %): 16.54 ft / 5.04 m
- Mid (50 %): 16.54 ft / 5.04 m
- Quarterdeck (15 %): 16.54 ft / 5.04 m
- Stern: 16.54 ft / 5.04 m
- Average freeboard: 17.30 ft / 5.27 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 88.9 %
- Above water (accommodation/working, high = better): 168.7 %
Waterplane Area: 28,011 Square feet or 2,602 Square metres
Displacement factor (Displacement / loading): 112 %
Structure weight / hull surface area: 171 lbs/sq ft or 836 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.13
- Longitudinal: 1.67
- Overall: 1.18
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

Quoted

Originally posted by thesmilingassassin
Two twin 14" turrets from Posiedons sister ship Aggamemnon, now a training ship, would likely make for a better battery for a coastal BB and would make logistics a breeze. It would however limit the design to specs that would suit the turrets.

The frightening thing however is the complete lack of belt armor, it would be a good thing to cover up those 14" shell magazines.

Forgot about it. Thanks. What should be a decent protection for the belt?

A couple things that could be looked at: first, this latest design has a fair amount of strength left (overall hull strength, 1.1; second, a single twin turret for 6" guns is probably not useful (either have more of them or ditch the 6" entirely).

As other people have already pointed out, the armor is VERY light considering the main gun size. In some cases, like shore bombardment monitors that are not expected to face heavy opposition, that's fine. If, however, you're expecting this ship to fight other warships, you'll probably want more armor.

Quoted

Forgot about it. Thanks. What should be a decent protection for the belt?

Depends on what you're up against: in general, 1-2" less than the bore size of your opponent's weapon is a good place to start. So, if this ship was actually designed to fight the Peruvian Lima or Huascar, 11" is a good start.

There's also deck armor: right now, your ship is VERY vulnerable to long range fire that hits the deck. Against the Peruvian ships, you'd probably want at least a 3" deck, a 3.5" deck would be better.

Quoted

Originally posted by Hrolf Hakonson
A couple things that could be looked at: first, this latest design has a fair amount of strength left (overall hull strength, 1.1; second, a single twin turret for 6" guns is probably not useful (either have more of them or ditch the 6" entirely).

As other people have already pointed out, the armor is VERY light considering the main gun size. In some cases, like shore bombardment monitors that are not expected to face heavy opposition, that's fine. If, however, you're expecting this ship to fight other warships, you'll probably want more armor.

Quoted

Forgot about it. Thanks. What should be a decent protection for the belt?

Depends on what you're up against: in general, 1-2" less than the bore size of your opponent's weapon is a good place to start. So, if this ship was actually designed to fight the Peruvian Lima or Huascar, 11" is a good start.

There's also deck armor: right now, your ship is VERY vulnerable to long range fire that hits the deck. Against the Peruvian ships, you'd probably want at least a 3" deck, a 3.5" deck would be better.

Thanks for the input. Will play with it and see what comes out. Thanks again.

I'd suggest a Atlantean gun armed version of the Almirante Gideon...or actually CanisD's two turret American Coastal Defense Ship design with 14" guns rather than 12" guns. Two turrets should be enough for Columbia. Chile has Lima covered with a three turret version using guns from the New York (with spares).

Eliminated the six inch turret and half of the 4.5 guns but doubled the AA protection. Also raised the armour but everything else about this numbers put too much strain to the hull.

Feel free to give your opinion. Just a learning experience for me.

Barranquilla, Colombia Coastal Battleship laid down 1933

Displacement:
10,219 t light; 10,920 t standard; 11,192 t normal; 11,411 t full load

Dimensions: Length overall / water x beam x draught
588.00 ft / 588.00 ft x 72.20 ft x 16.90 ft (normal load)
179.22 m / 179.22 m x 22.01 m x 5.15 m

Armament:
4 - 14.00" / 356 mm guns (2x2 guns), 1,372.00lbs / 622.33kg shells, 1933 Model
Breech loading guns in turrets (on barbettes)
on centreline, all forward, 1raised mount-superfiring
4 - 4.50" / 114 mm guns in single mounts, 45.56lbs / 20.67kg shells, 1933 Model
Breech loading guns in deck mounts
on side, evenly spread
8 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread
Weight of broadside 5,674 lbs / 2,574 kg
Shells per gun, main battery: 150

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5.00" / 127 mm 5.00 ft / 1.52 m 5.00 ft / 1.52 m
Ends: Unarmoured
Upper: 5.00" / 127 mm 5.00 ft / 1.52 m 5.00 ft / 1.52 m
Main Belt covers 1 % of normal length
Main belt does not fully cover magazines and engineering spaces

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 10.0" / 254 mm - 10.0" / 254 mm
2nd: 0.50" / 13 mm - -

- Armour deck: 3.00" / 76 mm, Conning tower: 6.00" / 152 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 3 shafts, 38,111 shp / 28,431 Kw = 25.31 kts
Range 4,000nm at 10.00 kts
Bunker at max displacement = 491 tons

Complement:
543 - 707

Cost:
£5.242 million / $20.969 million

Distribution of weights at normal displacement:
Armament: 709 tons, 6.3 %
Armour: 2,673 tons, 23.9 %
- Belts: 143 tons, 1.3 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 828 tons, 7.4 %
- Armour Deck: 1,638 tons, 14.6 %
- Conning Tower: 65 tons, 0.6 %
Machinery: 1,110 tons, 9.9 %
Hull, fittings & equipment: 5,726 tons, 51.2 %
Fuel, ammunition & stores: 973 tons, 8.7 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
15,694 lbs / 7,119 Kg = 11.4 x 14.0 " / 356 mm shells or 2.3 torpedoes
Stability (Unstable if below 1.00): 1.04
Metacentric height 3.3 ft / 1.0 m
Roll period: 16.6 seconds
Steadiness - As gun platform (Average = 50 %): 83 %
- Recoil effect (Restricted arc if above 1.00): 0.85
Seaboat quality (Average = 1.00): 1.22

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.546
Length to Beam Ratio: 8.14 : 1
'Natural speed' for length: 24.25 kts
Power going to wave formation at top speed: 47 %
Trim (Max stability = 0, Max steadiness = 100): 68
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.98 ft / 7.92 m
- Forecastle (20 %): 16.54 ft / 5.04 m
- Mid (50 %): 16.54 ft / 5.04 m
- Quarterdeck (15 %): 16.54 ft / 5.04 m
- Stern: 16.54 ft / 5.04 m
- Average freeboard: 17.30 ft / 5.27 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 81.5 %
- Above water (accommodation/working, high = better): 171.3 %
Waterplane Area: 29,517 Square feet or 2,742 Square metres
Displacement factor (Displacement / loading): 106 %
Structure weight / hull surface area: 143 lbs/sq ft or 696 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.25
- 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

Ok heres my opinion on a few parts of the design, in point form

Armament: Seems good allthough I'd add an additional two 4.5" twin mounts on the centerline super-emposed over the main guns. You might want to explore a twin or triple 20mm mount from Atlantis or another country.

Armour:

Quoted

- Belts: Width (max) Length (avg) Height (avg)
Main: 5.00" / 127 mm 5.00 ft / 1.52 m 5.00 ft / 1.52 m
Ends: Unarmoured
Upper: 5.00" / 127 mm 5.00 ft / 1.52 m 5.00 ft / 1.52 m
Main Belt covers 1 % of normal length
Main belt does not fully cover magazines and engineering spaces

The highlighted phrase is a warning given in SS and basically tells you that your armor doesn't cover the vitals ie. magazines, boilers ect.

On the upper righthand side of your SS screen when the armor tab is highlighted shoes the following...

"Minimum belt length needed to cover machinery and magazines="X number of feet.

I haven't run your design through SS but I suspect this would be higher than 5 feet. Hieght of the belt isn't really specified by the program but others can help you decide the correct height better than I can but it depends on the height of the torpedo bulkhead, freeboard and personal preferance to some extent.

Last version. The hull is longer and raised the speed to 28 knots. Pretty much they are fast heavy cruisers with battleship main armament.

It I raise the armour any more it turns into an unstable ship on open sea. Any opinion is welcomed.


Barranquilla, Colombia Coastal Battleship laid down 1933

Displacement:
10,773 t light; 11,503 t standard; 11,730 t normal; 11,912 t full load

Dimensions: Length overall / water x beam x draught
603.00 ft / 603.00 ft x 72.20 ft x 16.90 ft (normal load)
183.79 m / 183.79 m x 22.01 m x 5.15 m

Armament:
4 - 14.00" / 356 mm guns (2x2 guns), 1,372.00lbs / 622.33kg shells, 1933 Model
Breech loading guns in turrets (on barbettes)
on centreline, all forward, 1 raised mount-superfiring
4 - 4.50" / 114 mm guns in single mounts, 45.56lbs / 20.67kg shells, 1933 Model
Breech loading guns in deck mounts
on side, evenly spread
16 - 0.79" / 20.0 mm guns (8x2 guns), 0.24lbs / 0.11kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
4 - 4.50" / 114 mm guns (2x2 guns), 45.56lbs / 20.67kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on centreline, all forward, superimposed over main guns
Weight of broadside 5,856 lbs / 2,656 kg
Shells per gun, main battery: 150

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 11.0" / 279 mm 372.22 ft / 113.45 m 8.00 ft / 2.44 m
Ends: Unarmoured
Upper: 7.00" / 178 mm 372.22 ft / 113.45 m 8.00 ft / 2.44 m
Main Belt covers 95 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 11.0" / 279 mm - 8.00" / 203 mm
2nd: 0.50" / 13 mm - -
4th: 0.50" / 13 mm - -

- Armour deck: 3.00" / 76 mm, Conning tower: 11.00" / 279 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 3 shafts, 57,844 shp / 43,152 Kw = 28.00 kts
Range 3,000nm at 10.00 kts
Bunker at max displacement = 409 tons

Complement:
563 - 732

Cost:
£5.805 million / $23.219 million

Distribution of weights at normal displacement:
Armament: 732 tons, 6.2 %
Armour: 4,882 tons, 41.6 %
- Belts: 2,296 tons, 19.6 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 765 tons, 6.5 %
- Armour Deck: 1,699 tons, 14.5 %
- Conning Tower: 122 tons, 1.0 %
Machinery: 1,685 tons, 14.4 %
Hull, fittings & equipment: 3,473 tons, 29.6 %
Fuel, ammunition & stores: 957 tons, 8.2 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
8,353 lbs / 3,789 Kg = 6.1 x 14.0 " / 356 mm shells or 1.8 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 3.6 ft / 1.1 m
Roll period: 16.1 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.76
Seaboat quality (Average = 1.00): 1.05

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.558
Length to Beam Ratio: 8.35 : 1
'Natural speed' for length: 24.56 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 68
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.98 ft / 7.92 m
- Forecastle (20 %): 16.54 ft / 5.04 m
- Mid (50 %): 16.54 ft / 5.04 m
- Quarterdeck (15 %): 16.54 ft / 5.04 m
- Stern: 16.54 ft / 5.04 m
- Average freeboard: 17.30 ft / 5.27 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 95.0 %
- Above water (accommodation/working, high = better): 171.3 %
Waterplane Area: 30,613 Square feet or 2,844 Square metres
Displacement factor (Displacement / loading): 83 %
Structure weight / hull surface area: 84 lbs/sq ft or 408 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.57
- Longitudinal: 0.68
- Overall: 0.58
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

You dont need an upper belt get rid of it. Also a Hull strength of 0.58 is definetly not good. You need a much bigger hull. Your design reminds me of the German Pocket BBs.


Heres a rough design I came up for comparison:

Barranquilla, Mexico (export) Pocket Battleship laid down 1934

Displacement:
13,444 t light; 14,232 t standard; 14,921 t normal; 15,471 t full load

Dimensions: Length overall / water x beam x draught
630.00 ft / 630.00 ft x 68.00 ft x 23.00 ft (normal load)
192.02 m / 192.02 m x 20.73 m x 7.01 m

Armament:
6 - 14.00" / 356 mm guns (3x2 guns), 1,372.00lbs / 622.33kg shells, 1934 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward
Main guns limited to end-on fire
2 - 4.50" / 114 mm guns (1x2 guns), 45.56lbs / 20.67kg shells, 1934 Model
Dual purpose guns in a deck mount with hoist
on centreline aft, all raised guns - superfiring
8 - 4.50" / 114 mm guns (4x2 guns), 45.56lbs / 20.67kg shells, 1934 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread
16 - 1.10" / 27.9 mm guns (4x4 guns), 0.67lbs / 0.30kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
16 - 0.50" / 12.7 mm guns (8x2 guns), 0.06lbs / 0.03kg shells, 1934 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 8,699 lbs / 3,946 kg
Shells per gun, main battery: 100

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 7.50" / 191 mm 400.00 ft / 121.92 m 10.00 ft / 3.05 m
Ends: Unarmoured
Main Belt covers 98 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 7.50" / 191 mm 4.00" / 102 mm 6.00" / 152 mm
2nd: 1.00" / 25 mm - -
3rd: 1.00" / 25 mm - -

- Armour deck: 2.30" / 58 mm, Conning tower: 6.00" / 152 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 56,019 shp / 41,790 Kw = 28.00 kts
Range 10,000nm at 10.00 kts
Bunker at max displacement = 1,239 tons

Complement:
674 - 877

Cost:
£7.902 million / $31.606 million

Distribution of weights at normal displacement:
Armament: 1,087 tons, 7.3 %
Armour: 3,556 tons, 23.8 %
- Belts: 1,264 tons, 8.5 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 915 tons, 6.1 %
- Armour Deck: 1,299 tons, 8.7 %
- Conning Tower: 78 tons, 0.5 %
Machinery: 1,612 tons, 10.8 %
Hull, fittings & equipment: 7,089 tons, 47.5 %
Fuel, ammunition & stores: 1,477 tons, 9.9 %
Miscellaneous weights: 100 tons, 0.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
18,270 lbs / 8,287 Kg = 13.3 x 14.0 " / 356 mm shells or 2.0 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 3.4 ft / 1.0 m
Roll period: 15.5 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 1.21
Seaboat quality (Average = 1.00): 1.23

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.530
Length to Beam Ratio: 9.26 : 1
'Natural speed' for length: 28.72 kts
Power going to wave formation at top speed: 50 %
Trim (Max stability = 0, Max steadiness = 100): 40
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28.00 ft / 8.53 m
- Forecastle (20 %): 22.00 ft / 6.71 m
- Mid (50 %): 18.00 ft / 5.49 m
- Quarterdeck (15 %): 18.00 ft / 5.49 m
- Stern: 18.00 ft / 5.49 m
- Average freeboard: 19.88 ft / 6.06 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 90.4 %
- Above water (accommodation/working, high = better): 163.3 %
Waterplane Area: 30,536 Square feet or 2,837 Square metres
Displacement factor (Displacement / loading): 96 %
Structure weight / hull surface area: 154 lbs/sq ft or 753 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.50
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily

Thanks for the info. Is interesting how it went from a coastal battleship into a Pocket one. Thanks everyone for your help and inputs.

Barranquilla, Colombia Pocket Battleship laid down 1933

Displacement:
13,013 t light; 13,789 t standard; 14,043 t normal; 14,246 t full load

Dimensions: Length overall / water x beam x draught
610.00 ft / 610.00 ft x 72.20 ft x 20.00 ft (normal load)
185.93 m / 185.93 m x 22.01 m x 6.10 m

Armament:
4 - 14.00" / 356 mm guns (2x2 guns), 1,372.00lbs / 622.33kg shells, 1933 Model
Breech loading guns in turrets (on barbettes)
on centreline, all forward, 1 raised mount-superfiring
4 - 4.50" / 114 mm guns in single mounts, 45.56lbs / 20.67kg shells, 1933 Model
Breech loading guns in deck mounts
on side, evenly spread
16 - 0.79" / 20.0 mm guns (8x2 guns), 0.24lbs / 0.11kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
4 - 4.50" / 114 mm guns (2x2 guns), 45.56lbs / 20.67kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on centreline, all forward, superimposed with main guns
Weight of broadside 5,856 lbs / 2,656 kg
Shells per gun, main battery: 150

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 11.0" / 279 mm 372.22 ft / 113.45 m 8.00 ft / 2.44 m
Ends: Unarmoured
Main Belt covers 94 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 11.0" / 279 mm - 8.00" / 203 mm
2nd: 0.50" / 13 mm - -
4th: 0.50" / 13 mm - -

- Armour deck: 3.00" / 76 mm, Conning tower: 11.00" / 279 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 3 shafts, 63,619 shp / 47,460 Kw = 28.00 kts
Range 3,000nm at 10.00 kts
Bunker at max displacement = 457 tons

Complement:
644 - 838

Cost:
£6.287 million / $25.147 million

Distribution of weights at normal displacement:
Armament: 732 tons, 5.2 %
Armour: 4,026 tons, 28.7 %
- Belts: 1,404 tons, 10.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 765 tons, 5.4 %
- Armour Deck: 1,719 tons, 12.2 %
- Conning Tower: 138 tons, 1.0 %
Machinery: 1,854 tons, 13.2 %
Hull, fittings & equipment: 6,401 tons, 45.6 %
Fuel, ammunition & stores: 1,030 tons, 7.3 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
17,575 lbs / 7,972 Kg = 12.8 x 14.0 " / 356 mm shells or 2.3 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 3.4 ft / 1.0 m
Roll period: 16.5 seconds
Steadiness - As gun platform (Average = 50 %): 72 %
- Recoil effect (Restricted arc if above 1.00): 0.74
Seaboat quality (Average = 1.00): 1.06

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.558
Length to Beam Ratio: 8.45 : 1
'Natural speed' for length: 24.70 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 68
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.98 ft / 7.92 m
- Forecastle (20 %): 16.54 ft / 5.04 m
- Mid (50 %): 16.54 ft / 5.04 m
- Quarterdeck (15 %): 16.54 ft / 5.04 m
- Stern: 16.54 ft / 5.04 m
- Average freeboard: 17.30 ft / 5.27 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 83.5 %
- Above water (accommodation/working, high = better): 151.5 %
Waterplane Area: 30,968 Square feet or 2,877 Square metres
Displacement factor (Displacement / loading): 103 %
Structure weight / hull surface area: 147 lbs/sq ft or 719 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.04
- Longitudinal: 1.27
- Overall: 1.06
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

Isn't it amazing how a design can swell in size from the one you invisioned?

Another hint, try and keep your guns in order of largest to smallest in the armaments tab.

The current layout

Quoted

4 - 14.00" / 356 mm guns (2x2 guns), on centreline, all forward, 1 raised mount-superfiring
4 - 4.50" / 114 mm guns in single mounts, on side, evenly spread
16 - 0.79" / 20.0 mm guns (8x2 guns), on side, evenly spread
4 - 4.50" / 114 mm guns (2x2 guns), on centreline, all forward, superimposed with main guns

would change to...

4 - 14.00" / 356 mm guns (2x2 guns), on centreline, all forward, 1 raised mount-superfiring
4 - 4.50" / 114 mm guns in single mounts, on side, evenly spread
4 - 4.50" / 114 mm guns (2x2 guns), on centreline, all forward, superimposed with main guns
16 - 0.79" / 20.0 mm guns (8x2 guns), on side, evenly spread

Switching calibers around is seen as a no no and IIRC has some effects on the design.

Quoted

Originally posted by Ubiwan
Only a few thoughts on thinking:

Where does Colombia want to build these ships? Colombia possesses momentarily only Type2 slip. That means a maximum ship length of 170m ! Should this be not also considered?

With the size of the ship, the resources of Colombia would be bound. That means, only this ship could be built, nothing else! This is not a meaningful way to be developed a navy ;-)))) *but this is only my opinion*

Next thought: Why does Colombia need such a ship? I mean, who is the enemy in a future conflict. The opponent, whom this ship could meet. And thus we are for the largest problem. As soon as several opponents emerge, this ship is lost, since it must split up its fire. A ship can be used only at one point !!! In my opinion, it would be more intelligent to build several smaller not so strongly armed ships.

Old hunter wisdom: Too many hunters are the hares death! ;-))))

Thus I find this ship for Colombia useless! But that is only my opinion.

I agree somewhat. Colombia is falling behind their neighbors in regard to capital ships and need to do something in regard to that.

This ship, if build at all, would had been build probably in Cleito. But also agree is tying the resources of the nation for a long time, and is probably either a pipe dream or very bad allocation of resources of their part.

But remember South American nations sometimes build based in prestige and this ship would have been faster than any capital ship of Peru and/or Chile.

But thanks for your input. And you are completely right in the common sense department.

I suppose the question is: can Colombia buy Poseidon or not? If it can, then that would be cheaper and faster than building your own ship (not to mention probably more capable). If it can't, then before Colombia goes ahead and builds one of it's own, it might want to look around and see if there are other possible purchases that could be made. A lot of the major powers are likely to be replacing some of their older ships over the next few years, so take a look at their older vessels.

Of course, now that I look at it, Poseidon does have a minor issue: too much recoil for her hull. But that could be cured with a refit, which is going to be necessary anyway to repair the engines and quarters for another several years of use.

One thing I'd think about is rearranging the main battery. Instead of an A-Bs arrangement, go A-X (turrets forwards and aft); this will both reduce weight from removing the superfiring main turret, and will reduce the chance of a single hit disabiling all of your heavy guns.

Columbia's primary concerns for the moment would probably be Brazil, Iberia, and Peru (in that order). Chile and Argentina are farther away and the likelihood of Chile becoming a problem for Columbia are slim as long as Atlantis and Chile are friendly...and Peru and Equador are between Chile and Columbia.
Brazil might be more of an issue with its expansionist rhetoric of late.
Iberia is an unknown. I don't recall it every really expressing much in the way of goals for its New World possessions.
Peru is, well Peru. It might be building up, but it seems to be doing so in an effort of counter possible Chilean aggression, though Chile is presently at war with Bolivia, and thus Peru seems to be more threatened by Brazil at this time than Chile.

Your new small battleship should be no larger than 555 feet long. Having it up to 12,000 tons to 18,000 tons would be good for engines and armor with 4 x 14" guns. I don't think you will be able to get a ship that isn't shallow draft and light on secondaries to fit on a 8,000 - 12,000 ton hull. You might also consider the draft of such a ship (if it is to be "coastal"). If she is to be a light battlecruiser, light dreadnoughtm or heavy pre-dreadnought, than she'll need to be armed and armored for that reality. If she is a coastal battleship, she just needs to have a good reach and armor to deny an enemy the ability to come to your harbor free of challenge and yet be mobile rather than a fixed fortification.

Before going for the big fish consuming all your resources I´d go for a balanced fleet of small coastal units, torpedoboats, minesweepers, destroyers and a decent pair of modern cruisers. Big ships are impressive but overrated for small powers.