NUS Pacific Shipyards

[Kaiser Kirk]

Well it's similar in layout to the Bavarian AC I posted a bit ago, but on a lower displacement.
I was a little concerned on the beam, but considering Invincible had 12" guns in that arrangement, not 10.75", the 5 ft. less beam seems reasonable.  Armor is good vs 8-9" guns at reasonable ranges.

I would think that the NUS, with the S. Atlantic as a field of operations, may find sea keeping of more import and worth "spending" on a larger ship to obtain. 

[Jefgte]

...You need more light cruisers, not armoured cruisers...

I need modern ACs & CLs...
They are going to be built nearly in the same period.

After studying many SS with 234 & 275 guns, this one is the well balanced.
With  nearly 14000t, 170m hull, 4T2x275, correct protection & good sea boat @28kts - 29kts is the top speed.


Jef

[Jefgte]

Always 1919H2 project

Light Derfflinger, NUS AC laid down 1919 (Engine 1916)

Displacement:
   13 980 t light; 14 680 t standard; 15 614 t normal; 16 362 t full load

Dimensions: Length overall / water x beam x draught
   557.74 ft / 557.74 ft x 76.77 ft x 24.69 ft (normal load)
   170.00 m / 170.00 m x 23.40 m  x 7.52 m

Armament:
      8 - 10.83" / 275 mm guns (4x2 guns), 661.39lbs / 300.00kg shells, 1919 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, evenly spread, 2 raised mounts
     Aft Main mounts separated by engine room
      8 - 4.72" / 120 mm guns (4x2 guns), 52.72lbs / 23.91kg shells, 1919 Model
     Quick firing guns in deck mounts with hoists
     on side, evenly spread
      4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.88kg shells, 1919 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1919 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 5 721 lbs / 2 595 kg
   Shells per gun, main battery: 120
   6 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7.09" / 180 mm   360.89 ft / 110.00 m   12.47 ft / 3.80 m
   Ends:   1.57" / 40 mm   170.60 ft / 52.00 m   8.01 ft / 2.44 m
     26.25 ft / 8.00 m Unarmoured ends
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   7.87" / 200 mm   3.15" / 80 mm      7.09" / 180 mm
   2nd:   2.36" / 60 mm   0.79" / 20 mm      2.36" / 60 mm
   3rd:   0.79" / 20 mm         -               -
   4th:   0.50" / 13 mm         -               -

   - Armour deck: 1.81" / 46 mm, Conning tower: 7.09" / 180 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 80 660 shp / 60 172 Kw = 29.00 kts
   Range 7 000nm at 12.00 kts
   Bunker at max displacement = 1 682 tons

Complement:
   697 - 907

Cost:
   £3.247 million / $12.988 million

Distribution of weights at normal displacement:
   Armament: 688 tons, 4.4 %
   Armour: 3 591 tons, 23.0 %
      - Belts: 1 450 tons, 9.3 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 1 075 tons, 6.9 %
      - Armour Deck: 971 tons, 6.2 %
      - Conning Tower: 95 tons, 0.6 %
   Machinery: 3 005 tons, 19.2 %
   Hull, fittings & equipment: 6 395 tons, 41.0 %
   Fuel, ammunition & stores: 1 635 tons, 10.5 %
   Miscellaneous weights: 300 tons, 1.9 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     17 065 lbs / 7 741 Kg = 26.9 x 10.8 " / 275 mm shells or 2.0 torpedoes
   Stability (Unstable if below 1.00): 1.08
   Metacentric height 3.9 ft / 1.2 m
   Roll period: 16.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 51 %
         - Recoil effect (Restricted arc if above 1.00): 0.69
   Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.517
   Length to Beam Ratio: 7.26 : 1
   'Natural speed' for length: 23.62 kts
   Power going to wave formation at top speed: 58 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   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:      25.59 ft / 7.80 m
      - Forecastle (20 %):   22.64 ft / 6.90 m
      - Mid (50 %):      19.69 ft / 6.00 m
      - Quarterdeck (19 %):   19.03 ft / 5.80 m
      - Stern:      19.03 ft / 5.80 m
      - Average freeboard:   20.73 ft / 6.32 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 98.3 %
      - Above water (accommodation/working, high = better): 144.8 %
   Waterplane Area: 28 978 Square feet or 2 692 Square metres
   Displacement factor (Displacement / loading): 101 %
   Structure weight / hull surface area: 147 lbs/sq ft or 716 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 1.82
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent

[Jefgte]

Other 1919H2 project

CL5970t, NUS 6000T Fleet Cruiser laid down 1919 (Engine 1916)

Displacement:
   5 970 t light; 6 226 t standard; 7 028 t normal; 7 670 t full load

Dimensions: Length overall / water x beam x draught
   557.74 ft / 557.74 ft x 59.06 ft x 16.82 ft (normal load)
   170.00 m / 170.00 m x 18.00 m  x 5.13 m

Armament:
      8 - 6.00" / 152 mm guns (4x2 guns), 108.00lbs / 48.99kg shells, 1919 Model
     Quick firing guns in deck mounts with hoists
     on centreline, evenly spread, 2 raised mounts
     Aft Main mounts separated by engine room
      2 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1919 Model
     Quick firing guns in deck mounts
     on centreline, all amidships
      2 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1919 Model
     Quick firing guns in deck mounts
     on side, all amidships
      4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.89kg shells, 1919 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1919 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 1 000 lbs / 454 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:   1.57" / 40 mm   482.28 ft / 147.00 m   9.45 ft / 2.88 m
   Ends:   Unarmoured
     Main Belt covers 133 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   2nd:   0.79" / 20 mm         -               -
   3rd:   0.79" / 20 mm         -               -
   4th:   0.50" / 13 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 68 000 shp / 50 728 Kw = 31.97 kts
   Range 7 000nm at 14.00 kts
   Bunker at max displacement = 1 444 tons

Complement:
   383 - 498

Cost:
   £1.459 million / $5.836 million

Distribution of weights at normal displacement:
   Armament: 125 tons, 1.8 %
   Armour: 335 tons, 4.8 %
      - Belts: 286 tons, 4.1 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 50 tons, 0.7 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 2 534 tons, 36.0 %
   Hull, fittings & equipment: 2 846 tons, 40.5 %
   Fuel, ammunition & stores: 1 058 tons, 15.1 %
   Miscellaneous weights: 130 tons, 1.8 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5 266 lbs / 2 389 Kg = 48.8 x 6.0 " / 152 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.30
   Metacentric height 3.6 ft / 1.1 m
   Roll period: 13.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.24
   Seaboat quality  (Average = 1.00): 1.03

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.444
   Length to Beam Ratio: 9.44 : 1
   'Natural speed' for length: 23.62 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   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:      22.97 ft / 7.00 m
      - Forecastle (18 %):   18.37 ft / 5.60 m
      - Mid (40 %):      15.09 ft / 4.60 m
      - Quarterdeck (17 %):   15.09 ft / 4.60 m
      - Stern:      15.09 ft / 4.60 m
      - Average freeboard:   16.36 ft / 4.99 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 133.0 %
      - Above water (accommodation/working, high = better): 121.9 %
   Waterplane Area: 20 908 Square feet or 1 942 Square metres
   Displacement factor (Displacement / loading): 108 %
   Structure weight / hull surface area: 91 lbs/sq ft or 446 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.99
      - Longitudinal: 1.14
      - Overall: 1.00
   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

[Jefgte]

Lighter

CL5000t, Peru 5000T PCruiser laid down 1919 (Engine 1916)

Displacement:
   5 000 t light; 5 232 t standard; 5 815 t normal; 6 281 t full load

Dimensions: Length overall / water x beam x draught
   495.41 ft / 495.41 ft x 49.21 ft x 17.25 ft (normal load)
   151.00 m / 151.00 m x 15.00 m  x 5.26 m

Armament:
      8 - 6.00" / 152 mm guns (4x2 guns), 108.00lbs / 48.99kg shells, 1919 Model
     Quick firing guns in deck mounts with hoists
     on centreline, evenly spread, 2 raised mounts
     Aft Main mounts separated by engine room
      4 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1919 Model
     Quick firing guns in deck mounts
     on centreline, all amidships
      4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.89kg shells, 1919 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread
      2 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1919 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 1 000 lbs / 454 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   396.98 ft / 121.00 m   12.01 ft / 3.66 m
   Ends:   1.18" / 30 mm     32.81 ft / 10.00 m   8.01 ft / 2.44 m
     65.62 ft / 20.00 m Unarmoured ends
     Main Belt covers 123 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   2nd:   0.79" / 20 mm         -               -
   3rd:   0.79" / 20 mm         -               -
   4th:   0.50" / 13 mm         -               -

   - Armour deck: 0.79" / 20 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 49 618 shp / 37 015 Kw = 30.00 kts
   Range 8 000nm at 12.00 kts
   Bunker at max displacement = 1 049 tons

Complement:
   332 - 432

Cost:
   £1.176 million / $4.702 million

Distribution of weights at normal displacement:
   Armament: 125 tons, 2.1 %
   Armour: 673 tons, 11.6 %
      - Belts: 390 tons, 6.7 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 50 tons, 0.9 %
      - Armour Deck: 233 tons, 4.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 1 849 tons, 31.8 %
   Hull, fittings & equipment: 2 234 tons, 38.4 %
   Fuel, ammunition & stores: 815 tons, 14.0 %
   Miscellaneous weights: 120 tons, 2.1 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4 805 lbs / 2 180 Kg = 44.5 x 6.0 " / 152 mm shells or 0.9 torpedoes
   Stability (Unstable if below 1.00): 1.18
   Metacentric height 2.3 ft / 0.7 m
   Roll period: 13.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.50
   Seaboat quality  (Average = 1.00): 1.12

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.484
   Length to Beam Ratio: 10.07 : 1
   'Natural speed' for length: 22.26 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 62
   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:      21.65 ft / 6.60 m
      - Forecastle (19 %):   18.37 ft / 5.60 m
      - Mid (50 %):      15.75 ft / 4.80 m
      - Quarterdeck (18 %):   15.75 ft / 4.80 m
      - Stern:      15.75 ft / 4.80 m
      - Average freeboard:   16.89 ft / 5.15 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 122.5 %
      - Above water (accommodation/working, high = better): 99.5 %
   Waterplane Area: 16 012 Square feet or 1 488 Square metres
   Displacement factor (Displacement / loading): 106 %
   Structure weight / hull surface area: 84 lbs/sq ft or 410 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.47
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform

[Jefgte]

NUS Pacific Shipyards could built 2x6720t CL in 1919-1920-

These cruisers '' ll name Cuntisuyu & Collasuyu

6720t, NUS Light Cruiser laid down 1919 (Engine 1916)

Displacement:
   6 720 t light; 6 979 t standard; 7 590 t normal; 8 079 t full load

Dimensions: Length overall / water x beam x draught
   551.18 ft / 551.18 ft x 55.12 ft x 18.45 ft (normal load)
   168.00 m / 168.00 m x 16.80 m  x 5.62 m

Armament:
      8 - 6.00" / 152 mm guns (4x2 guns), 108.00lbs / 48.99kg shells, 1919 Model
     Quick firing guns in deck mounts with hoists
     on centreline, evenly spread, 1 raised mount
     Aft Main mounts separated by engine room
      2 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.92kg shells, 1919 Model
     Quick firing guns in deck mounts with hoists
     on side, all amidships
      1 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.92kg shells, 1919 Model
     Quick firing gun in a deck mount with hoist
     on centreline amidships
      4 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.89kg shells, 1919 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1919 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 1 030 lbs / 467 kg
   Shells per gun, main battery: 180
   12 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2.95" / 75 mm   465.88 ft / 142.00 m   9.84 ft / 3.00 m
   Ends:   Unarmoured
     Main Belt covers 130 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   2nd:   0.79" / 20 mm         -               -
   3rd:   0.79" / 20 mm         -               -
   4th:   0.50" / 13 mm         -               -

   - Armour deck: 0.98" / 25 mm, Conning tower: 2.36" / 60 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 72 000 shp / 53 712 Kw = 31.96 kts
   Range 7 000nm at 12.00 kts
   Bunker at max displacement = 1 100 tons

Complement:
   406 - 528

Cost:
   £1.569 million / $6.274 million

Distribution of weights at normal displacement:
   Armament: 129 tons, 1.7 %
   Armour: 970 tons, 12.8 %
      - Belts: 541 tons, 7.1 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 49 tons, 0.6 %
      - Armour Deck: 360 tons, 4.7 %
      - Conning Tower: 20 tons, 0.3 %
   Machinery: 2 683 tons, 35.3 %
   Hull, fittings & equipment: 2 824 tons, 37.2 %
   Fuel, ammunition & stores: 870 tons, 11.5 %
   Miscellaneous weights: 115 tons, 1.5 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5 455 lbs / 2 474 Kg = 50.5 x 6.0 " / 152 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.20
   Metacentric height 2.9 ft / 0.9 m
   Roll period: 13.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.33
   Seaboat quality  (Average = 1.00): 1.02

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.474
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 23.48 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   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:      21.33 ft / 6.50 m
      - Forecastle (20 %):   18.04 ft / 5.50 m
      - Mid (50 %):      15.75 ft / 4.80 m
      - Quarterdeck (18 %):   15.75 ft / 4.80 m
      - Stern:      15.75 ft / 4.80 m
      - Average freeboard:   16.81 ft / 5.13 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 129.6 %
      - Above water (accommodation/working, high = better): 110.1 %
   Waterplane Area: 19 777 Square feet or 1 837 Square metres
   Displacement factor (Displacement / loading): 101 %
   Structure weight / hull surface area: 90 lbs/sq ft or 441 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.22
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform

Cuntisuyu - Collasuyu

[Jefgte]

Last adjustements for Cuntisuyu class

(hull form - 4x120)

6720t, NUS Light Cruiser laid down 1919 (Engine 1916)

Displacement:
   6 720 t light; 6 985 t standard; 7 595 t normal; 8 082 t full load

Dimensions: Length overall / water x beam x draught
   538.06 ft / 538.06 ft x 53.81 ft x 19.37 ft (normal load)
   164.00 m / 164.00 m x 16.40 m  x 5.90 m

Armament:
     8 - 6.00" / 152 mm guns (4x2 guns), 108.00lbs / 48.99kg shells, 1919 Model
     Quick firing guns in deck mounts with hoists
     on centreline, evenly spread, 2 raised mounts
     Aft Main mounts separated by engine room
     2 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1919 Model
     Quick firing guns in deck mounts with hoists
     on side, all amidships
     2 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1919 Model
     Quick firing guns in deck mounts with hoists
     on centreline, all amidships
     4 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.88kg shells, 1919 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
     4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1919 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 1 083 lbs / 491 kg
   Shells per gun, main battery: 180
   12 - 21.0" / 533.4 mm above water torpedoes

Armour:
  - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2.95" / 75 mm   456.04 ft / 139.00 m   9.84 ft / 3.00 m
   Ends:   Unarmoured
     Main Belt covers 130 % of normal length

  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   2nd:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   3rd:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   4th:   0.79" / 20 mm         -               -
   5th:   0.50" / 13 mm         -               -

  - Armour deck: 0.98" / 25 mm, Conning tower: 2.36" / 60 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 72 038 shp / 53 740 Kw = 31.88 kts
   Range 7 000nm at 12.00 kts
   Bunker at max displacement = 1 097 tons

Complement:
   406 - 528

Cost:
   £1.581 million / $6.324 million

Distribution of weights at normal displacement:
   Armament: 135 tons, 1.8 %
   Armour: 954 tons, 12.6 %
      - Belts: 529 tons, 7.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 62 tons, 0.8 %
      - Armour Deck: 343 tons, 4.5 %
      - Conning Tower: 20 tons, 0.3 %
   Machinery: 2 684 tons, 35.3 %
   Hull, fittings & equipment: 2 827 tons, 37.2 %
   Fuel, ammunition & stores: 875 tons, 11.5 %
   Miscellaneous weights: 120 tons, 1.6 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5 251 lbs / 2 382 Kg = 48.6 x 6.0 " / 152 mm shells or 0.9 torpedoes
   Stability (Unstable if below 1.00): 1.15
   Metacentric height 2.6 ft / 0.8 m
   Roll period: 14.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.42
   Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.474
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 23.20 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   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:      21.65 ft / 6.60 m
      - Forecastle (20 %):   19.03 ft / 5.80 m
      - Mid (50 %):      16.08 ft / 4.90 m
      - Quarterdeck (18 %):   16.08 ft / 4.90 m
      - Stern:      16.08 ft / 4.90 m
      - Average freeboard:   17.32 ft / 5.28 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 130.3 %
      - Above water (accommodation/working, high = better): 106.1 %
   Waterplane Area: 18 846 Square feet or 1 751 Square metres
   Displacement factor (Displacement / loading): 101 %
   Structure weight / hull surface area: 92 lbs/sq ft or 449 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.37
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform

[Jefgte]

The Raider Cruisers Amazonas & Tarapaca are now obsolete , poor armament, low speed, light armor... but they are just 10yo.

NUS Admiralty is studying the possiblity to rebuilt these cruisers.

1st project: Squadron DDs Leader
Change armament to 4T2x120 - 12x533TT - 30kts.

2nd project: Seaplane Carrier
Reduce armament to 1T2x120 & 2 seaplanes after the 3rd funnel -29.8kts.

3rd project: Light Carrier
Made the rebuilt a few years later, to have the technos,  with a complete deck for 10 Aircrafts - 28.9kts.

The cost is about 2BPs & 2.2$.

Here are 2 studies rebuilts.




Jef

[Jefgte]

The Cls studies were upgrade to 7000t to have better performances.


7000t, NUS Light Cruiser Cuntisuyu & Collasuyu  laid down 1919H2 (Engine 1916)

Displacement:
   7 000 t light; 7 287 t standard; 8 047 t normal; 8 655 t full load

Dimensions: Length overall / water x beam x draught
   556.36 ft / 554.46 ft x 55.45 ft x 18.70 ft (normal load)
   169.58 m / 169.00 m x 16.90 m  x 5.70 m

Armament:
      8 - 6.00" / 152 mm guns (4x2 guns), 108.00lbs / 48.99kg shells, 1919 Model
     Quick firing guns in deck mounts with hoists
     on centreline, evenly spread, 2 raised mounts
     Aft Main mounts separated by engine room
      2 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1919 Model
     Quick firing guns in deck mounts with hoists
     on side, all amidships
      2 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1919 Model
     Quick firing guns in deck mounts with hoists
     on centreline, all amidships
      4 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.88kg shells, 1919 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1919 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 1 083 lbs / 491 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   459.32 ft / 140.00 m   9.84 ft / 3.00 m
   Ends:   Unarmoured
     Main Belt covers 127 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   2nd:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   3rd:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   4th:   0.79" / 20 mm         -               -
   5th:   0.50" / 13 mm         -               -

   - Armour deck: 0.98" / 25 mm, Conning tower: 3.15" / 80 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 74 600 shp / 55 651 Kw = 31.91 kts
   Range 8 500nm at 12.00 kts
   Bunker at max displacement = 1 368 tons

Complement:
   424 - 552

Cost:
   £1.632 million / $6.526 million

Distribution of weights at normal displacement:
   Armament: 135 tons, 1.7 %
   Armour: 1 030 tons, 12.8 %
      - Belts: 571 tons, 7.1 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 62 tons, 0.8 %
      - Armour Deck: 370 tons, 4.6 %
      - Conning Tower: 27 tons, 0.3 %
   Machinery: 2 779 tons, 34.5 %
   Hull, fittings & equipment: 2 955 tons, 36.7 %
   Fuel, ammunition & stores: 1 047 tons, 13.0 %
   Miscellaneous weights: 100 tons, 1.2 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5 954 lbs / 2 701 Kg = 55.1 x 6.0 " / 152 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.18
   Metacentric height 2.8 ft / 0.9 m
   Roll period: 13.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.36
   Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.490
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 23.55 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   Bow angle (Positive = bow angles forward): 5.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      21.65 ft / 6.60 m
      - Forecastle (20 %):   19.03 ft / 5.80 m
      - Mid (50 %):      15.75 ft / 4.80 m
      - Quarterdeck (18 %):   15.75 ft / 4.80 m
      - Stern:      15.75 ft / 4.80 m
      - Average freeboard:   17.11 ft / 5.21 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 126.8 %
      - Above water (accommodation/working, high = better): 110.3 %
   Waterplane Area: 20 299 Square feet or 1 886 Square metres
   Displacement factor (Displacement / loading): 104 %
   Structure weight / hull surface area: 92 lbs/sq ft or 449 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.98
      - Longitudinal: 1.22
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform

[Jefgte]

Testing quickly a Coastal BB for Pacific

3T2x400-AB-Y, NUS Coastal BB laid down 1926

Displacement:
   19 900 t light; 21 132 t standard; 22 480 t normal; 23 559 t full load

Dimensions: Length overall / water x beam x draught
   557.74 ft / 557.74 ft x 88.58 ft x 26.54 ft (normal load)
   170.00 m / 170.00 m x 27.00 m  x 8.09 m

Armament:
      6 - 15.75" / 400 mm guns (3x2 guns), 2 000.00lbs / 907.18kg shells, 1926 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, majority forward
      12 - 4.72" / 120 mm guns (6x2 guns), 52.72lbs / 23.92kg shells, 1926 Model
     Breech loading guns in deck mounts with hoists
     on side, evenly spread
      8 - 1.57" / 40.0 mm guns (2x4 guns), 1.95lbs / 0.89kg shells, 1926 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1926 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 12 649 lbs / 5 737 kg
   Shells per gun, main battery: 110

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12.6" / 320 mm   334.65 ft / 102.00 m   13.00 ft / 3.96 m
   Ends:   4.72" / 120 mm   144.36 ft / 44.00 m   8.01 ft / 2.44 m
     78.74 ft / 24.00 m Unarmoured ends
   Upper:   4.72" / 120 mm   334.65 ft / 102.00 m   12.73 ft / 3.88 m
     Main Belt covers 92 % of normal length

   - Torpedo Bulkhead:
      1.57" / 40 mm   334.65 ft / 102.00 m   25.49 ft / 7.77 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13.4" / 340 mm   4.72" / 120 mm      11.8" / 300 mm
   2nd:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   3rd:   0.79" / 20 mm         -               -
   4th:   0.50" / 13 mm         -               -

   - Armour deck: 3.94" / 100 mm, Conning tower: 12.60" / 320 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 36 000 shp / 26 856 Kw = 22.06 kts
   Range 7 000nm at 14.00 kts
   Bunker at max displacement = 2 427 tons

Complement:
   917 - 1 193

Cost:
   £7.449 million / $29.794 million

Distribution of weights at normal displacement:
   Armament: 1 546 tons, 6.9 %
   Armour: 8 517 tons, 37.9 %
      - Belts: 3 550 tons, 15.8 %
      - Torpedo bulkhead: 497 tons, 2.2 %
      - Armament: 1 622 tons, 7.2 %
      - Armour Deck: 2 632 tons, 11.7 %
      - Conning Tower: 216 tons, 1.0 %
   Machinery: 1 152 tons, 5.1 %
   Hull, fittings & equipment: 8 385 tons, 37.3 %
   Fuel, ammunition & stores: 2 580 tons, 11.5 %
   Miscellaneous weights: 300 tons, 1.3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     28 502 lbs / 12 928 Kg = 14.6 x 15.7 " / 400 mm shells or 5.0 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 5.0 ft / 1.5 m
   Roll period: 16.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 65 %
         - Recoil effect (Restricted arc if above 1.00): 0.63
   Seaboat quality  (Average = 1.00): 1.21

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.600
   Length to Beam Ratio: 6.30 : 1
   'Natural speed' for length: 23.62 kts
   Power going to wave formation at top speed: 48 %
   Trim (Max stability = 0, Max steadiness = 100): 54
   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:      20.67 ft / 6.30 m
      - Forecastle (22 %):   17.39 ft / 5.30 m
      - Mid (50 %):      14.76 ft / 4.50 m
      - Quarterdeck (20 %):   14.76 ft / 4.50 m
      - Stern:      14.76 ft / 4.50 m
      - Average freeboard:   16.00 ft / 4.88 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 91.0 %
      - Above water (accommodation/working, high = better): 115.6 %
   Waterplane Area: 36 135 Square feet or 3 357 Square metres
   Displacement factor (Displacement / loading): 96 %
   Structure weight / hull surface area: 173 lbs/sq ft or 843 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.44
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is adequate
   Good seaboat, rides out heavy weather easily

[Jefgte]

Testing the Gunboat with 1912 Bariloche guns (6x234) & 1909 Amazonas oil engines (20000shp).

real coast 3.89BP

Lima-Buenos Aires, NUS CGB laid down 1922 (Engine 1909)

Displacement:
   4 950 t light; 5 237 t standard; 5 937 t normal; 6 498 t full load

Dimensions: Length overall / water x beam x draught
   393.70 ft / 393.70 ft x 59.06 ft x 15.28 ft (normal load)
   120.00 m / 120.00 m x 18.00 m  x 4.66 m

Armament:
      2 - 9.20" / 234 mm guns in single mounts, 389.34lbs / 176.60kg shells, 1912 Model
     Breech loading guns in deck mounts with hoists
     on centreline, evenly spread
      4 - 9.20" / 234 mm guns in single mounts, 389.34lbs / 176.60kg shells, 1912 Model
     Breech loading guns in deck mounts with hoists
     on side, evenly spread
      8 - 4.72" / 120 mm guns (4x2 guns), 52.72lbs / 23.92kg shells, 1922 Model
     Quick firing guns in deck mounts with hoists
     on side, all amidships
      4 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.88kg shells, 1922 Model
     Anti-aircraft guns in deck mounts
     on side, all amidships, all raised mounts - superfiring
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1922 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 2 766 lbs / 1 255 kg
   Shells per gun, main battery: 100

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.15" / 80 mm   255.91 ft / 78.00 m   9.84 ft / 3.00 m
   Ends:   1.57" / 40 mm   124.67 ft / 38.00 m   8.01 ft / 2.44 m
     13.12 ft / 4.00 m Unarmoured ends
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   2.36" / 60 mm   1.18" / 30 mm      1.97" / 50 mm
   2nd:   2.36" / 60 mm   1.18" / 30 mm      1.97" / 50 mm
   3rd:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   4th:   0.79" / 20 mm         -               -
   5th:   0.50" / 13 mm         -               -

   - Armour deck: 1.38" / 35 mm, Conning tower: 3.15" / 80 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 20 000 shp / 14 920 Kw = 22.68 kts
   Range 7 000nm at 12.00 kts
   Bunker at max displacement = 1 260 tons

Complement:
   337 - 439

Cost:
   £1.612 million / $6.447 million

Distribution of weights at normal displacement:
   Armament: 346 tons, 5.8 %
   Armour: 966 tons, 16.3 %
      - Belts: 403 tons, 6.8 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 113 tons, 1.9 %
      - Armour Deck: 427 tons, 7.2 %
      - Conning Tower: 22 tons, 0.4 %
   Machinery: 909 tons, 15.3 %
   Hull, fittings & equipment: 2 430 tons, 40.9 %
   Fuel, ammunition & stores: 987 tons, 16.6 %
   Miscellaneous weights: 300 tons, 5.1 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     6 689 lbs / 3 034 Kg = 17.2 x 9.2 " / 234 mm shells or 1.3 torpedoes
   Stability (Unstable if below 1.00): 1.11
   Metacentric height 2.8 ft / 0.8 m
   Roll period: 14.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.68
   Seaboat quality  (Average = 1.00): 1.04

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.585
   Length to Beam Ratio: 6.67 : 1
   'Natural speed' for length: 19.84 kts
   Power going to wave formation at top speed: 56 %
   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:      19.69 ft / 6.00 m
      - Forecastle (23 %):   16.40 ft / 5.00 m
      - Mid (50 %):      13.12 ft / 4.00 m
      - Quarterdeck (21 %):   13.12 ft / 4.00 m
      - Stern:      13.12 ft / 4.00 m
      - Average freeboard:   14.61 ft / 4.45 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 99.0 %
      - Above water (accommodation/working, high = better): 131.9 %
   Waterplane Area: 16 768 Square feet or 1 558 Square metres
   Displacement factor (Displacement / loading): 101 %
   Structure weight / hull surface area: 104 lbs/sq ft or 510 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.70
      - Overall: 1.00
   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

[Jefgte]

With the engines of the cruisers Amazonas & Tarapaca
1909-1910 techno 54190shp in all - modified to burn oil, Callao shipyards could laid down in 1921H2 ;1 AC in surplus of the program

The speed is just enough to work with the classic 27kts NUS cruisers.
Protection is correct vs 9"2 shells
The main artillery with 300kg shell is good vs 7" armor, classic on AC -
but reduce to 6 guns due to the limited performance made by the 1909 engines.
Note: "Ship has slow, easy roll, a good, steady gun platform"
to maintain high speed in heavy sea.

Cost: 8.612BP & 11.075$

Lima, NUS AC laid down 1921 (Engine 1909)

Displacement:
   11 075 t light; 11 755 t standard; 12 880 t normal; 13 780 t full load

Dimensions: Length overall / water x beam x draught
   557.74 ft / 557.74 ft x 66.93 ft x 21.00 ft (normal load)
   170.00 m / 170.00 m x 20.40 m  x 6.40 m

Armament:
     6 - 10.83" / 275 mm guns (2x3 guns), 661.39lbs / 300.00kg shells, 1921 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, evenly spread
     12 - 4.72" / 120 mm guns (6x2 guns), 52.72lbs / 23.92kg shells, 1921 Model
     Quick firing guns in deck mounts with hoists
     on side, evenly spread
     4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.89kg shells, 1921 Model
     Anti-aircraft guns in deck mounts
     on centreline, evenly spread, all raised mounts
     4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1921 Model
     Machine guns in deck mounts
     on side, all amidships, all raised mounts - superfiring
   Weight of broadside 4 609 lbs / 2 091 kg
   Shells per gun, main battery: 160
   12 - 21.0" / 533 mm above water torpedoes

Armour:
  - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   6.89" / 175 mm   357.61 ft / 109.00 m   10.00 ft / 3.05 m
   Ends:   1.57" / 40 mm   157.48 ft / 48.00 m   8.01 ft / 2.44 m
     42.65 ft / 13.00 m Unarmoured ends
     Main Belt covers 99 % of normal length

  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   7.87" / 200 mm   2.76" / 70 mm      6.89" / 175 mm
   2nd:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   3rd:   0.79" / 20 mm         -               -
   4th:   0.50" / 13 mm         -               -

  - Armour deck: 1.97" / 50 mm, Conning tower: 6.89" / 175 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 54 190 shp / 40 426 Kw = 27.00 kts
   Range 7 000nm at 12.00 kts
   Bunker at max displacement = 2 025 tons

Complement:
   603 - 785

Cost:
   £3.053 million / $12.213 million

Distribution of weights at normal displacement:
   Armament: 556 tons, 4.3 %
   Armour: 2 740 tons, 21.3 %
      - Belts: 1 123 tons, 8.7 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 564 tons, 4.4 %
      - Armour Deck: 971 tons, 7.5 %
      - Conning Tower: 82 tons, 0.6 %
   Machinery: 2 463 tons, 19.1 %
   Hull, fittings & equipment: 5 016 tons, 38.9 %
   Fuel, ammunition & stores: 1 805 tons, 14.0 %
   Miscellaneous weights: 300 tons, 2.3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     13 969 lbs / 6 336 Kg = 22.0 x 10.8 " / 275 mm shells or 1.7 torpedoes
   Stability (Unstable if below 1.00): 1.11
   Metacentric height 3.3 ft / 1.0 m
   Roll period: 15.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.75
   Seaboat quality  (Average = 1.00): 1.14

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.575
   Length to Beam Ratio: 8.33 : 1
   'Natural speed' for length: 23.62 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 61
   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:      23.62 ft / 7.20 m
      - Forecastle (23 %):   20.01 ft / 6.10 m
      - Mid (50 %):      16.73 ft / 5.10 m
      - Quarterdeck (21 %):   16.73 ft / 5.10 m
      - Stern:      16.73 ft / 5.10 m
      - Average freeboard:   18.25 ft / 5.56 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 98.5 %
      - Above water (accommodation/working, high = better): 115.0 %
   Waterplane Area: 26 670 Square feet or 2 478 Square metres
   Displacement factor (Displacement / loading): 104 %
   Structure weight / hull surface area: 127 lbs/sq ft or 621 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.38
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform

[Jefgte]

Start mid 1919, in Callao Shipyards 2 x 6" cruisers - Cuntisuyu & Collasuyu



Note that NUS Admiralty choose, with the armament disposition, the possibility to engage 3 DDs.
Fore & aft 6" turrets could engage 2 differents targets & the middle 120mm guns had the own directory fire control for a third target.
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7200t, NUS Light Cruiser laid down 1919 (Engine 1916)

Displacement:
   7 200 t light; 7 485 t standard; 8 256 t normal; 8 874 t full load

Dimensions: Length overall / water x beam x draught
   556.36 ft / 554.46 ft x 55.45 ft x 19.18 ft (normal load)
   169.58 m / 169.00 m x 16.90 m  x 5.85 m

Armament:
     8 - 6.00" / 152 mm guns (4x2 guns), 108.00lbs / 48.99kg shells, 1919 Model
     Quick firing guns in deck mounts with hoists
     on centreline, evenly spread, 2 raised mounts
     Aft Main mounts separated by engine room
     2 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1919 Model
     Quick firing guns in deck mounts with hoists
     on side, all amidships
     2 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1919 Model
     Quick firing guns in deck mounts with hoists
     on centreline, all amidships
     4 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.88kg shells, 1919 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
     4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1919 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 1 083 lbs / 491 kg
   Shells per gun, main battery: 190
   12 - 21.0" / 533.4 mm above water torpedoes

Armour:
  - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.15" / 80 mm   459.32 ft / 140.00 m   9.19 ft / 2.80 m
   Ends:   Unarmoured
     Main Belt covers 127 % of normal length

  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   2nd:   1.57" / 40 mm   0.79" / 20 mm      1.97" / 50 mm
   3rd:   1.57" / 40 mm   0.79" / 20 mm      1.97" / 50 mm
   4th:   0.79" / 20 mm         -               -
   5th:   0.50" / 13 mm         -               -

  - Armour deck: 0.98" / 25 mm, Conning tower: 3.15" / 80 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 75 960 shp / 56 666 Kw = 31.93 kts
   Range 8 500nm at 12.00 kts
   Bunker at max displacement = 1 389 tons

Complement:
   432 - 562

Cost:
   £1.662 million / $6.650 million

Distribution of weights at normal displacement:
   Armament: 135 tons, 1.6 %
   Armour: 991 tons, 12.0 %
      - Belts: 533 tons, 6.5 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 60 tons, 0.7 %
      - Armour Deck: 370 tons, 4.5 %
      - Conning Tower: 28 tons, 0.3 %
   Machinery: 2 830 tons, 34.3 %
   Hull, fittings & equipment: 2 995 tons, 36.3 %
   Fuel, ammunition & stores: 1 056 tons, 12.8 %
   Miscellaneous weights: 249 tons, 3.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5 920 lbs / 2 685 Kg = 54.8 x 6.0 " / 152 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.15
   Metacentric height 2.7 ft / 0.8 m
   Roll period: 14.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.37
   Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.490
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 23.55 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   Bow angle (Positive = bow angles forward): 5.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      21.65 ft / 6.60 m
      - Forecastle (20 %):   20.01 ft / 6.10 m
      - Mid (50 %):      15.75 ft / 4.80 m
      - Quarterdeck (18 %):   15.75 ft / 4.80 m
      - Stern:      15.75 ft / 4.80 m
      - Average freeboard:   17.37 ft / 5.30 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 127.4 %
      - Above water (accommodation/working, high = better): 109.8 %
   Waterplane Area: 20 299 Square feet or 1 886 Square metres
   Displacement factor (Displacement / loading): 103 %
   Structure weight / hull surface area: 92 lbs/sq ft or 450 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.26
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform


100t -fire control
25t -Marconi long range
24t - torpedoes
20t - for 60 depth charges
80t - for 80 mines

[Guinness]

I don't see the need for 152mm and 120mm guns on the same ship. If they ever engage the same target fire control will be confused. I suspect you could simply ship an additional pair of 152mm guns instead.

[Jefgte]

I don't see the need for 152mm and 120mm guns on the same ship. If they ever engage the same target fire control will be confused. I suspect you could simply ship an additional pair of 152mm guns instead.

This choice was made early but not retain.

The protection of the BBs against torpedo boats charge was considered as a new job for the 6" cruisers by NUS Admiralty, so engage 3 differents targets (4x6" fore + 3x120 middle + 4x6" aft) was add in the concept to the classic 1 vs 1