WesWorld

Heavily armoured, she can be built either using the old mounts from the R class or with a completely new, heavily armoured mount with 15/50 guns. There are the two versions:

First one, with 15/50 guns

R Class Replacement, British Battleship laid down 1935

Displacement:
35.819 t light; 37.868 t standard; 41.184 t normal; 43.672 t full load

Dimensions: Length overall / water x beam x draught
780,00 ft / 780,00 ft x 100,00 ft x 30,80 ft (normal load)
237,74 m / 237,74 m x 30,48 m x 9,39 m

Armament:
8 - 15,00" / 381 mm guns (4x2 guns), 1.687,50lbs / 765,44kg shells, 1935 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
20 - 4,50" / 114 mm guns (10x2 guns), 45,56lbs / 20,67kg shells, 1935 Model
Dual purpose guns in turrets (on barbettes)
on side, all amidships, 4 raised mounts - superfiring
24 - 1,57" / 40,0 mm guns (6x4 guns), 1,95lbs / 0,89kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
40 - 0,79" / 20,0 mm guns (10x4 guns), 0,24lbs / 0,11kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 14.468 lbs / 6.563 kg
Shells per gun, main battery: 150

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 16,0" / 406 mm 380,00 ft / 115,82 m 12,00 ft / 3,66 m
Ends: Unarmoured
Main Belt covers 75 % of normal length

- Torpedo Bulkhead:
2,00" / 51 mm 500,00 ft / 152,40 m 28,00 ft / 8,53 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 18,0" / 457 mm 10,0" / 254 mm 12,0" / 305 mm
2nd: 4,00" / 102 mm 1,00" / 25 mm 2,00" / 51 mm
3rd: 2,00" / 51 mm - -
4th: 1,00" / 25 mm - -

- Armour deck: 8,00" / 203 mm, Conning tower: 16,00" / 406 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 100.443 shp / 74.931 Kw = 27,00 kts
Range 11.410nm at 15,00 kts (Bunkerage = 5.968 tons)

Complement:
1.445 - 1.879

Cost:
£16,150 million / $64,599 million

Distribution of weights at normal displacement:
Armament: 1.808 tons, 4,4 %
Armour: 16.378 tons, 39,8 %
- Belts: 3.315 tons, 8,1 %
- Torpedo bulkhead: 1.036 tons, 2,5 %
- Armament: 3.355 tons, 8,1 %
- Armour Deck: 8.259 tons, 20,1 %
- Conning Tower: 413 tons, 1,0 %
Machinery: 2.853 tons, 6,9 %
Hull, fittings & equipment: 14.579 tons, 35,4 %
Fuel, ammunition & stores: 5.365 tons, 13,0 %
Miscellaneous weights: 200 tons, 0,5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
54.808 lbs / 24.861 Kg = 32,5 x 15,0 " / 381 mm shells or 8,2 torpedoes
Stability (Unstable if below 1.00): 1,18
Metacentric height 6,8 ft / 2,1 m
Steadiness - As gun platform (Average = 50 %): 49 %
- Recoil effect (Restricted arc if above 1.00): 0,50
Seaboat quality (Average = 1.00): 1,21

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,600
Length to Beam Ratio: 7,80 : 1
'Natural speed' for length: 27,93 kts
Power going to wave formation at top speed: 47 %
Trim (Max stability = 0, Max steadiness = 100): 39
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: 26,00 ft / 7,92 m
- Forecastle (20 %): 22,00 ft / 6,71 m
- Mid (50 %): 20,00 ft / 6,10 m
- Quarterdeck (15 %): 18,00 ft / 5,49 m
- Stern: 18,00 ft / 5,49 m
- Average freeboard: 20,37 ft / 6,21 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 72,3 %
- Above water (accommodation/working, high = better): 146,5 %
Waterplane Area: 55.802 Square feet or 5.184 Square metres
Displacement factor (Displacement / loading): 112 %
Structure weight / hull surface area: 186 lbs/sq ft or 910 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1,00
- Longitudinal: 1,05
- Overall: 1,00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily

R Class Replacement, British Battleship laid down 1935

Displacement:
35.710 t light; 37.759 t standard; 41.184 t normal; 43.759 t full load

Dimensions: Length overall / water x beam x draught
780,00 ft / 780,00 ft x 100,00 ft x 30,80 ft (normal load)
237,74 m / 237,74 m x 30,48 m x 9,39 m

Armament:
8 - 15,00" / 381 mm guns (4x2 guns), 1.687,50lbs / 765,44kg shells, 1935 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
20 - 4,50" / 114 mm guns (10x2 guns), 45,56lbs / 20,67kg shells, 1935 Model
Dual purpose guns in turrets (on barbettes)
on side, all amidships, 4 raised mounts - superfiring
24 - 1,57" / 40,0 mm guns (6x4 guns), 1,95lbs / 0,89kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
40 - 0,79" / 20,0 mm guns (10x4 guns), 0,24lbs / 0,11kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 14.468 lbs / 6.563 kg
Shells per gun, main battery: 150

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 16,0" / 406 mm 380,00 ft / 115,82 m 12,00 ft / 3,66 m
Ends: Unarmoured
Main Belt covers 75 % of normal length

- Torpedo Bulkhead:
2,00" / 51 mm 500,00 ft / 152,40 m 28,00 ft / 8,53 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 13,0" / 330 mm 8,00" / 203 mm 8,00" / 203 mm
2nd: 4,00" / 102 mm 1,00" / 25 mm 2,00" / 51 mm
3rd: 2,00" / 51 mm - -
4th: 1,00" / 25 mm - -

- Armour deck: 9,00" / 229 mm, Conning tower: 16,00" / 406 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 100.443 shp / 74.931 Kw = 27,00 kts
Range 11.810nm at 15,00 kts (Bunkerage = 6.164 tons)

Complement:
1.445 - 1.879

Cost:
£16,130 million / $64,521 million

Distribution of weights at normal displacement:
Armament: 1.808 tons, 4,4 %
Armour: 16.518 tons, 40,1 %
- Belts: 3.315 tons, 8,1 %
- Torpedo bulkhead: 1.036 tons, 2,5 %
- Armament: 2.463 tons, 6,0 %
- Armour Deck: 9.291 tons, 22,6 %
- Conning Tower: 413 tons, 1,0 %
Machinery: 2.853 tons, 6,9 %
Hull, fittings & equipment: 14.329 tons, 34,8 %
Fuel, ammunition & stores: 5.474 tons, 13,3 %
Miscellaneous weights: 200 tons, 0,5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
55.813 lbs / 25.316 Kg = 33,1 x 15,0 " / 381 mm shells or 8,3 torpedoes
Stability (Unstable if below 1.00): 1,22
Metacentric height 7,2 ft / 2,2 m
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0,49
Seaboat quality (Average = 1.00): 1,27

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,600
Length to Beam Ratio: 7,80 : 1
'Natural speed' for length: 27,93 kts
Power going to wave formation at top speed: 47 %
Trim (Max stability = 0, Max steadiness = 100): 39
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: 26,00 ft / 7,92 m
- Forecastle (20 %): 22,00 ft / 6,71 m
- Mid (50 %): 20,00 ft / 6,10 m
- Quarterdeck (15 %): 18,00 ft / 5,49 m
- Stern: 18,00 ft / 5,49 m
- Average freeboard: 20,37 ft / 6,21 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 72,3 %
- Above water (accommodation/working, high = better): 146,5 %
Waterplane Area: 55.802 Square feet or 5.184 Square metres
Displacement factor (Displacement / loading): 112 %
Structure weight / hull surface area: 183 lbs/sq ft or 894 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1,00
- Longitudinal: 1,07
- Overall: 1,00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily

I like the first one...

This again begs the question, when the Treaty becomes a lame duck, can you lay down 'Treaty-busters' as long as they're completed post-1/1/37?

No, as long as the treaty is in effect you´re not allowed to lay down such vessels.

Quoted

This again begs the question, when the Treaty becomes a lame duck, can you lay down 'Treaty-busters' as long as they're completed post-1/1/37?

Yes you can, but they may get trashed by long-range bombardement in the middle of the night.

Gravina, far too much armour, not enough speed. A KGV with 9x15" is possible.


Displacement:
33,242 t light; 35,371 t standard; 36,994 t normal; 38,292 t full load

Dimensions: Length overall / water x beam x draught
714.23 ft / 704.00 ft x 103.00 ft x 32.00 ft (normal load)
217.70 m / 214.58 m x 31.39 m x 9.75 m

Armament:
9 - 15.00" / 381 mm guns (3x3 guns), 1,687.50lbs / 765.44kg shells, 1937 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
16 - 5.25" / 133 mm guns (8x2 guns), 72.35lbs / 32.82kg shells, 1937 Model
Breech loading guns in deck mounts with hoists
on side, all amidships
32 - 1.57" / 39.9 mm guns in single mounts, 1.93lbs / 0.88kg shells, 1937 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 16,407 lbs / 7,442 kg
Shells per gun, main battery: 150

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 15.0" / 381 mm 413.81 ft / 126.13 m 12.18 ft / 3.71 m
Ends: 4.50" / 114 mm 290.17 ft / 88.44 m 12.18 ft / 3.71 m
Main Belt covers 90 % of normal length

- Torpedo Bulkhead:
1.75" / 44 mm 413.81 ft / 126.13 m 29.52 ft / 9.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 12.8" / 324 mm 8.00" / 203 mm 12.8" / 324 mm
2nd: 1.50" / 38 mm 1.00" / 25 mm -

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

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 119,949 shp / 89,482 Kw = 28.50 kts
Range 14,000nm at 10.00 kts (Bunkerage = 2,921 tons)

Complement:
1,333 - 1,733

Cost:
£18.282 million / $73.127 million

Distribution of weights at normal displacement:
Armament: 2,051 tons, 5.5 %
Armour: 13,218 tons, 35.7 %
- Belts: 3,938 tons, 10.6 %
- Torpedo bulkhead: 791 tons, 2.1 %
- Armament: 2,758 tons, 7.5 %
- Armour Deck: 5,660 tons, 15.3 %
- Conning Tower: 72 tons, 0.2 %
Machinery: 3,325 tons, 9.0 %
Hull, fittings & equipment: 14,548 tons, 39.3 %
Fuel, ammunition & stores: 3,752 tons, 10.1 %
Miscellaneous weights: 100 tons, 0.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
38,868 lbs / 17,630 Kg = 23.0 x 15.0 " / 381 mm shells or 5.4 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 6.1 ft / 1.9 m
Roll period: 17.6 seconds
Steadiness - As gun platform (Average = 50 %): 56 %
- Recoil effect (Restricted arc if above 1.00): 0.63
Seaboat quality (Average = 1.00): 1.03

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.558
Length to Beam Ratio: 6.83 : 1
'Natural speed' for length: 26.53 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 55
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 6.00 ft / 1.83 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.00 ft / 7.32 m
- Forecastle (21 %): 21.00 ft / 6.40 m
- Mid (50 %): 21.00 ft / 6.40 m
- Quarterdeck (21 %): 21.00 ft / 6.40 m
- Stern: 21.00 ft / 6.40 m
- Average freeboard: 21.25 ft / 6.48 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 90.4 %
- Above water (accommodation/working, high = better): 153.0 %
Waterplane Area: 50,987 Square feet or 4,737 Square metres
Displacement factor (Displacement / loading): 102 %
Structure weight / hull surface area: 204 lbs/sq ft or 997 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.44
- Overall: 1.01
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

Quoted

Originally posted by Red Admiral

Quoted

This again begs the question, when the Treaty becomes a lame duck, can you lay down 'Treaty-busters' as long as they're completed post-1/1/37?

Yes you can, but they may get trashed by long-range bombardement in the middle of the night.

Treaty-busters are - of course - not allowed. They would violate Part 3, A (I). To lay down a warship means to start construction and this is not allowed according to the paragraph mentioned during the duration of the treaty.

Quoted

Gravina, far too much armour, not enough speed

I do not agree in this case. I´ve designed these ships deliberately focusing in armor.

My reasons:

The aerial threat is bigger in Wesworld than was in our timeline, most major navies are deploying fleet carriers, and the tech level is closer to the late 20s than the early. Thus the risk of taking bomb hits (or torpedoes) is not to be underestimated (I know that aircrafts are still too weak to carry high payloads, still this is a 1935 desing, so... who knows what can be flying in that year?) .

Also, combat ranges are steadily increasing, as was seen in WWI, so the plunging fire was a menace to consider. Just look at the thickness of the decks of british BBs and projects:

N3 project: 8" (203mm)on the flat, 9" (228mm) on slopes
Nelson class: 6.32" (160.5mm)
KGV class: up to 7" (178mm) all together

So I think a deck armor as thick as posible will not be out of place for a british BB.

As for speed, that´s what I have my BCs and CVs for...

Perhaps 27 knots is a bit slower than the ships other nations are building, but I think it´s enough. After all the QEs did quite well in WWII with speeds that often barely surpassed 24 knots.

First off when I see these ships they counter most other "current" designs nicely. They utilize two types of 15" mounts giving the UK the option of using existing mounts or building fresh if need be.

Secondly the UK has Hood, Renown and Repulse to chase down the faster capital units of other navy's which are thankfully in small numbers, at least currently.

They are faster than Melampus, and I wouldn't dare chase them with Vengeance in her current guise unless she had a proper Battleship accompanying her.

For the current threats this design makes sence.

Quoted

As for speed, that´s what I have my BCs and CVs for...

Perhaps 27 knots is a bit slower than the ships other nations are building, but I think it´s enough.

My current late-30s design is rated for 27.5 knots.

Now, as for her armament and speed, y'all will just have to guess...