Rebuilt too...

[Jefgte]

Hmmm. At 22.4 knots there will be very few DDs, PCs or ACs this ship can force into a fight. Weapons are right, speed is definitely not up to that task

These ships are defenders first .
When the enemy cruisers & DDs attack ... their job is to protect the BBs.

...With the weapons change you're bassically downgrading the quality of the battleline by downgrading those ships to the role of AC hunter,...

With that rebuilt, I have 2 ECs abble to repulse & sink 10 000t cruisers.

[Jefgte]

From the Rules

...Newer machinery can be installed, but the weight can not exceed the previous set of machinery... 

I am limited to 1253t
For this weight, I could rebuilt to - 31 420shp & 22.64kts

[RAM]

From the Rules

...Newer machinery can be installed, but the weight can not exceed the previous set of machinery... 

I am limited to 1253t
For this weight, I could rebuilt to - 31 420shp & 22.64kts

That's only appliable to refurbishments. A reconstruction gives you a free hand regarding machinery weights. At an added cost, of course.

[Jefgte]

Here is the last study for a rebuilt in 13050t EC

- lenght increase to 10m
- deck level increase by 1.2m (0.5 deck) on the first 48% of the lenght
- A turret level increase by 0.5m.
- 4x152 casemates are removed



Autofagasta class, Peru 13050T EC laid down 1905 (Engine 1912)

Displacement:
   13 050 t light; 13 740 t standard; 14 810 t normal; 15 665 t full load

Dimensions: Length overall / water x beam x draught
   524.93 ft / 524.93 ft x 78.74 ft x 21.08 ft (normal load)
   160.00 m / 160.00 m x 24.00 m  x 6.42 m

Armament:
      6 - 10.83" / 275 mm guns (2x3 guns), 661.39lbs / 300.00kg shells, 1905 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread
      12 - 5.98" / 152 mm guns in single mounts, 107.15lbs / 48.60kg shells, 1905 Model
     Breech loading guns in casemate mounts
     on side, evenly spread, 8 raised mounts
      4 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1905 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, 1905 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 5 308 lbs / 2 408 kg
   Shells per gun, main battery: 128
   6 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12.6" / 320 mm   328.08 ft / 100.00 m   9.19 ft / 2.80 m
   Ends:   3.00" / 76 mm   164.04 ft / 50.00 m   8.01 ft / 2.44 m
     32.81 ft / 10.00 m Unarmoured ends
   Upper:   2.36" / 60 mm   328.08 ft / 100.00 m   7.55 ft / 2.30 m
     Main Belt covers 96 % of normal length

   - Torpedo Bulkhead:
      1.18" / 30 mm   328.08 ft / 100.00 m   20.96 ft / 6.39 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11.0" / 280 mm   3.94" / 100 mm      11.0" / 280 mm
   2nd:   2.36" / 60 mm         -               -
   3rd:   0.79" / 20 mm         -               -
   4th:   0.50" / 13 mm         -               -

   - Armour deck: 2.95" / 75 mm, Conning tower: 11.02" / 280 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 40 000 shp / 29 840 Kw = 24.08 kts
   Range 7 000nm at 12.00 kts
   Bunker at max displacement = 1 925 tons

Complement:
   670 - 872

Cost:
   £1.221 million / $4.882 million

Distribution of weights at normal displacement:
   Armament: 643 tons, 4.3 %
   Armour: 5 040 tons, 34.0 %
      - Belts: 2 071 tons, 14.0 %
      - Torpedo bulkhead: 301 tons, 2.0 %
      - Armament: 882 tons, 6.0 %
      - Armour Deck: 1 644 tons, 11.1 %
      - Conning Tower: 143 tons, 1.0 %
   Machinery: 1 595 tons, 10.8 %
   Hull, fittings & equipment: 5 421 tons, 36.6 %
   Fuel, ammunition & stores: 1 760 tons, 11.9 %
   Miscellaneous weights: 350 tons, 2.4 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     21 742 lbs / 9 862 Kg = 34.3 x 10.8 " / 275 mm shells or 3.9 torpedoes
   Stability (Unstable if below 1.00): 1.17
   Metacentric height 4.7 ft / 1.4 m
   Roll period: 15.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.41
   Seaboat quality  (Average = 1.00): 1.16

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.595
   Length to Beam Ratio: 6.67 : 1
   'Natural speed' for length: 22.91 kts
   Power going to wave formation at top speed: 52 %
   Trim (Max stability = 0, Max steadiness = 100): 60
   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:      26.25 ft / 8.00 m
      - Forecastle (23 %):   21.33 ft / 6.50 m
      - Mid (48 %):      17.72 ft / 5.40 m (13.78 ft / 4.20 m aft of break)
      - Quarterdeck (18 %):   13.78 ft / 4.20 m
      - Stern:      13.78 ft / 4.20 m
      - Average freeboard:   17.40 ft / 5.30 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 95.7 %
      - Above water (accommodation/working, high = better): 124.8 %
   Waterplane Area: 30 090 Square feet or 2 795 Square metres
   Displacement factor (Displacement / loading): 108 %
   Structure weight / hull surface area: 132 lbs/sq ft or 646 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.39
      - 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

[RAM]

I like her, except for the part that means you're giving up two of your 340mm gunned ships.

I'd do something like that to one of the 12'' PD classes you have (keeping the 12'' and not swapping them for 275mm guns) and keep antofagasta class as it is.

But at least this reconstruction has the merit of an increased speed and a credible anti-AC gunnery setup. With that speed, armor and weapons combo it's a good ship to do fleet scouting in force or to brush aside any enemy scouting efforts not involving true battlecruisers.

I still think rebuilding some of the older PDs keeping their 12'' weaponry would be a better invest (that way the ship would be a menace even for enemy medium to light BCs. 275mm won't cut it imo), but I like this iteration much more than the previous ones.

One question, though. why putting the eight raised 152mm guns in casemates?. Give them proper single mounts, that will mean better firing arcs...as it is if the ship has to engage an enemy directly ahead (probable scenario in a scout role), it'll be hard pressed to bring more than two secondaries to the correct bearing. Turrets would solve it.

[Jefgte]

Rebuilt  as
13500t – 1917
160x24 – 23.97kts – 40000shp – 2T2x340+12x152+4x76.2+6TTx533

Good to protect the BBs in a squadron.

Design identical to the last one (main guns are just to be redraw bigger)

Autofagasta class, Peru 13500T EC laid down 1905 (Engine 1912)

Displacement:
   13 500 t light; 14 159 t standard; 15 244 t normal; 16 112 t full load

Dimensions: Length overall / water x beam x draught
   524.93 ft / 524.93 ft x 78.74 ft x 21.69 ft (normal load)
   160.00 m / 160.00 m x 24.00 m  x 6.61 m

Armament:
      4 - 13.39" / 340 mm guns (2x2 guns), 1 200.00lbs / 544.31kg shells, 1905 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread
      12 - 5.98" / 152 mm guns in single mounts, 107.15lbs / 48.60kg shells, 1905 Model
     Breech loading guns in casemate mounts
     on side, evenly spread, 8 raised mounts
      4 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1905 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, 1905 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 6 140 lbs / 2 785 kg
   Shells per gun, main battery: 100
   6 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12.6" / 320 mm   341.21 ft / 104.00 m   9.19 ft / 2.80 m
   Ends:   3.00" / 76 mm   164.04 ft / 50.00 m   8.01 ft / 2.44 m
     19.69 ft / 6.00 m Unarmoured ends
   Upper:   2.36" / 60 mm   328.08 ft / 100.00 m   7.55 ft / 2.30 m
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead:
      1.18" / 30 mm   328.08 ft / 100.00 m   20.96 ft / 6.39 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   12.6" / 320 mm   3.94" / 100 mm      11.0" / 280 mm
   2nd:   2.36" / 60 mm         -               -
   3rd:   0.79" / 20 mm         -               -
   4th:   0.50" / 13 mm         -               -

   - Armour deck: 2.95" / 75 mm, Conning tower: 11.02" / 280 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 40 000 shp / 29 840 Kw = 23.98 kts
   Range 7 000nm at 12.00 kts
   Bunker at max displacement = 1 954 tons

Complement:
   685 - 891

Cost:
   £1.340 million / $5.361 million

Distribution of weights at normal displacement:
   Armament: 767 tons, 5.0 %
   Armour: 5 141 tons, 33.7 %
      - Belts: 2 123 tons, 13.9 %
      - Torpedo bulkhead: 301 tons, 2.0 %
      - Armament: 928 tons, 6.1 %
      - Armour Deck: 1 644 tons, 10.8 %
      - Conning Tower: 146 tons, 1.0 %
   Machinery: 1 595 tons, 10.5 %
   Hull, fittings & equipment: 5 672 tons, 37.2 %
   Fuel, ammunition & stores: 1 744 tons, 11.4 %
   Miscellaneous weights: 325 tons, 2.1 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     20 869 lbs / 9 466 Kg = 17.4 x 13.4 " / 340 mm shells or 3.7 torpedoes
   Stability (Unstable if below 1.00): 1.14
   Metacentric height 4.5 ft / 1.4 m
   Roll period: 15.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.49
   Seaboat quality  (Average = 1.00): 1.16

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.595
   Length to Beam Ratio: 6.67 : 1
   'Natural speed' for length: 22.91 kts
   Power going to wave formation at top speed: 52 %
   Trim (Max stability = 0, Max steadiness = 100): 60
   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:      26.25 ft / 8.00 m
      - Forecastle (23 %):   21.33 ft / 6.50 m
      - Mid (48 %):      17.72 ft / 5.40 m (13.78 ft / 4.20 m aft of break)
      - Quarterdeck (18 %):   13.78 ft / 4.20 m
      - Stern:      13.78 ft / 4.20 m
      - Average freeboard:   17.40 ft / 5.30 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 99.9 %
      - Above water (accommodation/working, high = better): 122.1 %
   Waterplane Area: 30 090 Square feet or 2 795 Square metres
   Displacement factor (Displacement / loading): 103 %
   Structure weight / hull surface area: 138 lbs/sq ft or 672 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 excellent
   Ship has slow, easy roll, a good, steady gun platform

The cost:
13500t – 1917
160x24 – 23.97kts – 40000shp – 2T2x340+12x152+4x76.2+6TTx533
New machinery : 1595t – 1.6BP – 3.2$
New armament : 63t – 0.6BP – 1.2$
New hull 1200t : 1.2BP – 2.4$
Rebuilt Package : 1.2BP + 3.1$
TOTAL : 4.6BP + 9.9$
Old Machinery: 1 253 tons - 0.188BP - 0.188$
TOTAL : 4.42BP-9.72$

[miketr]

New armament : 63t – 0.6BP – 1.2$

That should be 63 / 1000 = 0.063 BP...

Otherwise looks like a great reconstruction...

Michael

[Jefgte]

Testing an other rebuilt

Autofagasta is rebuilt with 2 turrets forward.
In red , the rebuilt



Autofagasta class, Peru 12300t to 15650t - light BB laid down 1905 (Engine 1917)

Displacement:
   15 650 t light; 16 507 t standard; 17 502 t normal; 18 298 t full load

Dimensions: Length overall / water x beam x draught
   551.18 ft / 551.18 ft x 78.74 ft (Bulges 85.63 ft) x 21.07 ft (normal load)
   168.00 m / 168.00 m x 24.00 m (Bulges 26.10 m)  x 6.42 m

Armament:
      6 - 13.39" / 340 mm guns (3x2 guns), 1 200.00lbs / 544.31kg shells, 1905 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, majority forward, 1 raised mount - superfiring
      12 - 5.98" / 152 mm guns in single mounts, 107.15lbs / 48.60kg shells, 1905 Model
     Breech loading guns in casemate mounts
     on side, evenly spread, 4 raised mounts
      4 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1905 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, 1905 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 8 540 lbs / 3 874 kg
   Shells per gun, main battery: 104
   6 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12.6" / 320 mm   367.45 ft / 112.00 m   9.19 ft / 2.80 m
   Ends:   3.00" / 76 mm   124.67 ft / 38.00 m   8.01 ft / 2.44 m
     59.06 ft / 18.00 m Unarmoured ends
   Upper:   2.36" / 60 mm   367.45 ft / 112.00 m   7.55 ft / 2.30 m
     Main Belt covers 103 % of normal length

   - Torpedo Bulkhead and Bulges:
      1.18" / 30 mm   367.45 ft / 112.00 m   20.96 ft / 6.39 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   12.6" / 320 mm   3.94" / 100 mm      11.0" / 280 mm
   2nd:   2.36" / 60 mm         -               -
   3rd:   0.79" / 20 mm         -               -
   4th:   0.50" / 13 mm         -               -

   - Armour deck: 2.95" / 75 mm, Conning tower: 11.02" / 280 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 33 994 shp / 25 360 Kw = 22.49 kts
   Range 7 000nm at 12.00 kts
   Bunker at max displacement = 1 791 tons

Complement:
   760 - 989

Cost:
   £1.618 million / $6.474 million

Distribution of weights at normal displacement:
   Armament: 1 067 tons, 6.1 %
   Armour: 5 975 tons, 34.1 %
      - Belts: 2 228 tons, 12.7 %
      - Torpedo bulkhead: 337 tons, 1.9 %
      - Armament: 1 490 tons, 8.5 %
      - Armour Deck: 1 760 tons, 10.1 %
      - Conning Tower: 160 tons, 0.9 %
   Machinery: 1 246 tons, 7.1 %
   Hull, fittings & equipment: 7 012 tons, 40.1 %
   Fuel, ammunition & stores: 1 852 tons, 10.6 %
   Miscellaneous weights: 350 tons, 2.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     23 325 lbs / 10 580 Kg = 19.5 x 13.4 " / 340 mm shells or 4.3 torpedoes
   Stability (Unstable if below 1.00): 1.09
   Metacentric height 4.1 ft / 1.3 m
   Roll period: 17.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 72 %
         - Recoil effect (Restricted arc if above 1.00): 0.58
   Seaboat quality  (Average = 1.00): 1.20

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.616
   Length to Beam Ratio: 6.44 : 1
   'Natural speed' for length: 23.48 kts
   Power going to wave formation at top speed: 48 %
   Trim (Max stability = 0, Max steadiness = 100): 60
   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:      26.90 ft / 8.20 m
      - Forecastle (26 %):   21.65 ft / 6.60 m
      - Mid (43 %):      18.37 ft / 5.60 m (13.78 ft / 4.20 m aft of break)
      - Quarterdeck (20 %):   13.78 ft / 4.20 m
      - Stern:      13.78 ft / 4.20 m
      - Average freeboard:   17.43 ft / 5.31 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 95.9 %
      - Above water (accommodation/working, high = better): 115.0 %
   Waterplane Area: 32 219 Square feet or 2 993 Square metres
   Displacement factor (Displacement / loading): 101 %
   Structure weight / hull surface area: 157 lbs/sq ft or 765 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.26
      - 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

The first cost calculation for 16300tl

168x24 (27)x6.45 – 16300tl - 19010tfl - 40000shp – 23.27kts - 3T2x340+12x152+4x76.2+6TTx533
New machinery : 1466t – 1253t = 213t – 0.21BP – 0.42$
New armament : 1067t – 756t = 853t – 0.76BP + 1.5$
New hull :16300t – 12300t = 4000t = 4BP – 8$
New Armour : 6098t – 4854t =1244t – 1.24BP – 2.48$
Rebuilt Package : 1.2BP + 3.1$
Total : 7.41BP – 15.5$
Srapp :1466t x 0.15 = 0.22 BP – 0.22$
Total : 7.2BP – 15.3$

[The Rock Doctor]

If you're going to go down that route, consider increasing the height of the main belt.

For comparison - if you scrapped the two Antofagastas, retaining their machinery (for used in slower fleet train elements) and armament (for a Vanguard), what would be the cost of a battleship with 4x2 340mm and 22.5 kts speed?

[Jefgte]

Last SS with the drawing in progress



Autofagasta class, Peru 12300t rebuilt to 16200t - light BB laid down 1905 (Engine 1917)

Displacement:
   16 200 t light; 17 069 t standard; 18 087 t normal; 18 902 t full load

Dimensions: Length overall / water x beam x draught
   557.22 ft / 551.18 ft x 78.74 ft (Bulges 88.58 ft) x 21.05 ft (normal load)
   169.84 m / 168.00 m x 24.00 m (Bulges 27.00 m)  x 6.42 m

Armament:
      6 - 13.39" / 340 mm guns (3x2 guns), 1 200.00lbs / 544.31kg shells, 1905 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, majority forward, 1 raised mount - superfiring
      12 - 5.98" / 152 mm guns in single mounts, 107.15lbs / 48.60kg shells, 1905 Model
     Breech loading guns in casemate mounts
     on side, evenly spread, 4 raised mounts
      4 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1905 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, 1905 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 8 540 lbs / 3 874 kg
   Shells per gun, main battery: 104
   6 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12.6" / 320 mm   367.45 ft / 112.00 m   9.19 ft / 2.80 m
   Ends:   3.00" / 76 mm   177.17 ft / 54.00 m   8.01 ft / 2.44 m
     6.56 ft / 2.00 m Unarmoured ends
   Upper:   2.36" / 60 mm   367.45 ft / 112.00 m   7.55 ft / 2.30 m
     Main Belt covers 103 % of normal length

   - Torpedo Bulkhead and Bulges:
      1.18" / 30 mm   367.45 ft / 112.00 m   20.96 ft / 6.39 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   12.6" / 320 mm   3.94" / 100 mm      11.0" / 280 mm
   2nd:   2.36" / 60 mm         -               -
   3rd:   0.79" / 20 mm         -               -
   4th:   0.50" / 13 mm         -               -

   - Armour deck: 2.95" / 75 mm, Conning tower: 11.02" / 280 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 38 000 shp / 28 348 Kw = 22.98 kts
   Range 7 000nm at 12.00 kts
   Bunker at max displacement = 1 833 tons

Complement:
   779 - 1 013

Cost:
   £1.658 million / $6.633 million

Distribution of weights at normal displacement:
   Armament: 1 067 tons, 5.9 %
   Armour: 6 117 tons, 33.8 %
      - Belts: 2 275 tons, 12.6 %
      - Torpedo bulkhead: 337 tons, 1.9 %
      - Armament: 1 582 tons, 8.7 %
      - Armour Deck: 1 760 tons, 9.7 %
      - Conning Tower: 164 tons, 0.9 %
   Machinery: 1 393 tons, 7.7 %
   Hull, fittings & equipment: 7 273 tons, 40.2 %
   Fuel, ammunition & stores: 1 887 tons, 10.4 %
   Miscellaneous weights: 350 tons, 1.9 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     24 371 lbs / 11 055 Kg = 20.3 x 13.4 " / 340 mm shells or 4.5 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 4.2 ft / 1.3 m
   Roll period: 18.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.54
   Seaboat quality  (Average = 1.00): 1.18

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.616
   Length to Beam Ratio: 6.22 : 1
   'Natural speed' for length: 23.48 kts
   Power going to wave formation at top speed: 49 %
   Trim (Max stability = 0, Max steadiness = 100): 60
   Bow angle (Positive = bow angles forward): 12.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      28.41 ft / 8.66 m
      - Forecastle (26 %):   23.95 ft / 7.30 m
      - Mid (43 %):      22.31 ft / 6.80 m (13.78 ft / 4.20 m aft of break)
      - Quarterdeck (20 %):   13.78 ft / 4.20 m
      - Stern:      13.78 ft / 4.20 m
      - Average freeboard:   18.48 ft / 5.63 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 96.4 %
      - Above water (accommodation/working, high = better): 119.2 %
   Waterplane Area: 32 219 Square feet or 2 993 Square metres
   Displacement factor (Displacement / loading): 102 %
   Structure weight / hull surface area: 159 lbs/sq ft or 777 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.32
      - 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

[Carthaginian]

Engine year is 1917, should be 1916.
Other than that, it's a damn fine little rebuild. It won't be as capable as a new-build BB, but it will make a much stronger ship that's easily on par with several classes of ships that it might be facing in the next 5-10 years.

[Jefgte]

what would be the cost of a battleship with 4x2 340mm and 22.5 kts speed?

4T2x340-22.5kts ...18000t, BB Atahualpa cost

With this rebuilt, Autofagasta could work with 21kts BBs Atahualpa & BB Waskhar.
If they do this job, they are classed as AC.
The first generation of BCs with 12" guns, 14 000 to 20 000t don't like very much to receive 1200lb shells.
The reconstruction could be made in 1917-1918-1919 , just before the Peruvian new BB.
Autofagastas rebuilt take the BPs & price of the 16 000t AC in the Peruvian program.


;)

[Jefgte]

If you're going to go down that route, consider increasing the height of the main belt.

Increase the height of the belt to 0.5m (2.8 to 3.3m) mean that the displacement increase to 16 600t (+400t)
& the speed drop down to 22.6kts (-0.4kts).
Not cool :(

With 16200t - 320mm x112mx2.8m belt - 23kts - rebuilt, Autofagasta & LaPaz "ll reclassed as ACs.


;)

[Jefgte]

The drawing, ready to built the 1/700 WL scratch.





Jef  ;)

[Carthaginian]

The N-verse shall now truly come to life!

We can't wait to see the finished product, Jef.