Alternate warships of nations

[RamscoopRaider]

Guys I just designed an Austro Hungarian Aircraft Carrier, and I don't know if I when too crazy or not. Thoughts?

Lissa Class Aircraft Carriers

33,400 tons displacement, oil fired boilers, turbine driven, 26 knots, 4 x 21 cm L/45s castmate, 8 12 cm L/50s Twin Turrets/Castmates, 4 x 9 cm AA Guns, 42 Aircraft

I'd say a bit too crazy, the KuK Marine is only going to be operating out of the Adriatic, that's basically 150 miles wide at most. Carriers there, basically a knife fight in an alleyway, and unless A-H holds Albania breaking out of the Adriatic and breaking back in would be harder. Within the Adriatic, if they wanted a CV for dickwaving, they'd want the smallest they could get away with and credibly call it a CV so they have more budget for useful ships, and you could get away with a lot smaller than that for a fleet CV, say an Illustrious with a heavier gun battery (mix of 15cm and 12cm) for DD and small CL killing enlarged to 25-27,000t

 

[Jim Smitty]

What is the designed objective for the aircraft carrier, and what are the likely foes? My initial feeling is that it seems a little too large in displacement unless this is a conversion from a battlecruiser.

Conversion from a battleship as they agreed to stop building a fourth in a 33.000 ish ton displacement battleship.

I'd say a bit too crazy, the KuK Marine is only going to be operating out of the Adriatic, that's basically 150 miles wide at most. Carriers there, basically a knife fight in an alleyway, and unless A-H holds Albania breaking out of the Adriatic and breaking back in would be harder. Within the Adriatic, if they wanted a CV for dickwaving, they'd want the smallest they could get away with and credibly call it a CV so they have more budget for useful ships, and you could get away with a lot smaller than that for a fleet CV, say an Illustrious with a heavier gun battery (mix of 15cm and 12cm) for DD and small CL killing enlarged to 25-27,000t

Yeah they control Albania as a puppet so I figure this thing could break out into the Med.

 

[RamscoopRaider]

Conversion from a battleship as they agreed to stop building a fourth in a 33.000 ish ton displacement battleship.

Yeah they control Albania as a puppet so I figure this thing could break out into the Med.

Okay then the design makes sense, a BB hull would be slow, inefficient and justify why they are spending the money, that said it would likely be faster as a CV than as a BB, so could add 1-2 knots if it is from the hull I think

 

[Luminous]

Conversion from a battleship as they agreed to stop building a fourth in a 33.000 ish ton displacement battleship.

That makes a bit more sense. The number of planes seems a little bit too small, (Lex could hold 78, Akagi could hold 66+25 reserve) and those were both total conversion. (Also, I'm unsure if there are 8 120 mm guns or 8 twin ones, or 8 total guns in a mix of mounts). The overall number of guns are similar to other ships.

Correct me if I'm wrong, but casemate mounts are relatively lighter than turrets. At the very least, they save more space, so there'd be no need for construction of sponsons and open mounts.

My only question here is :where is all the weight going? One thing the Austrians should be able to skimp on is range (they only need to project power in the Med) so they should be able to squeeze a bit more into a CV. it wouldn't be as efficient as a purpose built design, but the air group would be matched by a carrier 2/3 its size. Although, considering the casemates... Did they just go with the primarily battleship hull and not cut down for a complete redesign? That might explain it.

 

[RamscoopRaider]

That makes a bit more sense. The number of planes seems a little bit too small, (Lex could hold 78, Akagi could hold 66+25 reserve) and those were both total conversion. (Also, I'm unsure if there are 8 120 mm guns or 8 twin ones, or 8 total guns in a mix of mounts). The overall number of guns are similar to other ships.

Correct me if I'm wrong, but casemate mounts are relatively lighter than turrets. At the very least, they save more space, so there'd be no need for construction of sponsons and open mounts.

My only question here is :where is all the weight going? One thing the Austrians should be able to skimp on is range (they only need to project power in the Med) so they should be able to squeeze a bit more into a CV. it wouldn't be as efficient as a purpose built design, but the air group would be matched by a carrier 2/3 its size. Although, considering the casemates... Did they just go with the primarily battleship hull and not cut down for a complete redesign? That might explain it.

I'd guess lots of extra armor, it would be operating in a confined space, so armored flight deck, protection against 6" guns, huge TDS, etc.

 

[Luminous]

I'd guess lots of extra armor, it would be operating in a confined space, so armored flight deck, protection against 6" guns, huge TDS, etc.

6" guns means 5" armor. If this is a late war battleship instead of a BB, it's probably at least 12" gun protection, so a 10" belt. (if not more) So they could have kept with that in addition to everything else.

 

[RamscoopRaider]

6" guns means 5" armor. If this is a late war battleship instead of a BB, it's probably at least 12" gun protection, so a 10" belt. (if not more) So they could have kept with that in addition to everything else.

Battleship protection was in a narrow belt, I'd imagine a carrier would need much broader protection, belt has to be longer and taller to protect the hangar, otherwise it is useless as a carrier, plus one would want more protection for the propulsion system so it could avoid being lamed and caught by heavier units

 

[Luminous]

Battleship protection was in a narrow belt, I'd imagine a carrier would need much broader protection, belt has to be longer and taller to protect the hangar, otherwise it is useless as a carrier, plus one would want more protection for the propulsion system so it could avoid being lamed and caught by heavier units

If it's a conversion, especially a late conversion, it'd retain the same armor scheme as the ship it was based on (like how Lexington and Saratoga kept their 7" narrow belt). The armor is likely an integral part of the ship construction (imagining something analogous to late WW1 era). To remove it would necessitate a complete rebuild, which wasn't done on any conversions. And, typically, armored decks are a later invention.

Although, the Austrians are well placed to emphasize armor and integrate an armed deck (maybe not an armored landing deck, but some protection for the hangers as you said) due to their geographical position being hemmed in. But the only thing that will change from the keel down would be additions of torpedo defenses and other underwater protections. The protection for the hangers would composed of a higher grade sheet metal, but to alter the armor of the existing hull would mean to rebuild the entire ship from that point up.

 

[Jim Smitty]

OTL the Italians during the treaty period could had built up to 70,000 tons worth of battleships. For various reasons the Italians never till they started the Littorio Class. However they had drawn up plans on for a 23,000 six gun 12 inch design for three ships in the 70,000 limits. I was wondering what kind of hard numbers those 23,000 tons ships would have looked liked. Because I really haven't found none so I was wondering if you guys had any.

 

[Luminous]

OTL the Italians during the treaty period could had built up to 70,000 tons worth of battleships. For various reasons the Italians never till they started the Littorio Class. However they had drawn up plans on for a 23,000 six gun 12 inch design for three ships in the 70,000 limits. I was wondering what kind of hard numbers those 23,000 tons ships would have looked liked. Because I really haven't found none so I was wondering if you guys had any.

EDIT: Sorry, thought you said pic, not numbers. Give me a bit and I'll see if I can find anything

EDIT THE SECOND: Anywho, there's not much on the subject. The ship would have used three twin 13.5" guns, from what I can tell, not the 12" guns. The secondary armament would be 4 twin 6" guns and 6 twin 100mm guns (probably dual purpose). There would be some number of AA included and I think there would have been 8 21" torpedo tubes.

There is a link here to a similar looking ship that is upsized for triple 13.5" guns and what looks like 4 triple 6" guns. Your speed for the Livorno would have been in the 29-30 knot range. Dimensions for this ship are included in the link. One source mentioned that the ship had to be lengthened 132 feet in order to maintain the same lines for speed.

http://xoomer.virgilio.it/bk/MuseoL...lecruiser 1930/source/2002_0824_152105aa.html

https://stefsap.wordpress.com/2015/10/11/oto-lenghorn-battlecruiser-design-for-the-regia-marina-30/

Also, there seems to be a book that has the information on page 48, but I don't believe it's available online. The book is: Italian Battleships 1928-1957 an Illustrated Technical Reference

Ref Image below:

Is this what you were looking for? Source: http://www.shipbucket.com/images.php?dir=Never Built Designs/Italy/BC Livorno 1928.png

 

[Butchpfd]

Question, I am not yet really good on Springs hip, so what would have resulted if the USN had built 2 follow on New. York/ Texas Battleships, with the following changes. Delete repla e the triple expansionengines with turbines, and delete turret 3, amidships. Using the below deck space for additional boilers and engines, also replace coal with oil. What kind of performance boos would you See?

 

[Killer in]

Question, I am not yet really good on Springs hip, so what would have resulted if the USN had built 2 follow on New. York/ Texas Battleships, with the following changes. Delete repla e the triple expansionengines with turbines, and delete turret 3, amidships. Using the below deck space for additional boilers and engines, also replace coal with oil. What kind of performance boos would you See?

I'd say a sort of US Queen Elizabeth

 

[matlef]

Spoiler: HMS Jacob Bagge, Cruiser

HMS Jacob Bagge, Swedish Cruiser laid down 1937

Displacement:
7 471 t light; 7 935 t standard; 8 524 t normal; 8 995 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(533.57 ft / 524.93 ft) x 52.49 ft x (19.69 / 20.54 ft)
(162.63 m / 160.00 m) x 16.00 m x (6.00 / 6.26 m)

Armament:
6 - 8.27" / 210 mm 45.0 cal guns - 286.60lbs / 130.00kg shells, 200 per gun
Breech loading guns in turret on barbette mounts, 1935 Model
3 x Twin mounts on centreline ends, majority aft
1 raised mount aft - superfiring
8 - 4.72" / 120 mm 45.0 cal guns - 53.17lbs / 24.12kg shells, 300 per gun
Breech loading guns in deck and hoist mounts, 1937 Model
4 x Twin mounts on sides, evenly spread
6 - 2.95" / 75.0 mm 60.0 cal guns - 14.99lbs / 6.80kg shells, 500 per gun
Anti-air guns in deck mounts, 1928 Model
6 x Single mounts on centreline, evenly spread
6 raised mounts
4 - 1.57" / 40.0 mm 57.0 cal guns - 1.96lbs / 0.89kg shells, 1 000 per gun
Anti-air guns in deck mounts, 1936 Model
4 x Single mounts on centreline, evenly spread
4 raised mounts
6 - 0.98" / 25.0 mm 47.0 cal guns - 0.55lbs / 0.25kg shells, 1 000 per gun
Anti-air guns in deck mounts, 1930 Model
3 x Single mounts on centreline, aft deck forward
3 raised mounts
3 x Single mounts on centreline, forward deck aft
3 double raised mounts
Weight of broadside 2 246 lbs / 1 019 kg
Main Torpedoes
6 - 21.0" / 533 mm, 19.69 ft / 6.00 m torpedoes - 1.352 t each, 8.113 t total
In 2 sets of deck mounted side rotating tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5.94" / 151 mm 299.64 ft / 91.33 m 8.69 ft / 2.65 m
Ends: 0.79" / 20 mm 225.30 ft / 68.67 m 8.69 ft / 2.65 m
Upper: 2.76" / 70 mm 299.64 ft / 91.33 m 8.01 ft / 2.44 m
Main Belt covers 88 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4.72" / 120 mm 1.97" / 50 mm 3.94" / 100 mm
2nd: 0.98" / 25 mm 0.79" / 20 mm 1.57" / 40 mm

- Armoured deck - multiple decks:
For and Aft decks: 3.35" / 85 mm
Forecastle: 0.98" / 25 mm Quarter deck: 1.57" / 40 mm

- Conning towers: Forward 1.97" / 50 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 60 000 shp / 44 760 Kw = 29.61 kts
Range 4 498nm at 16.00 kts
Bunker at max displacement = 1 060 tons

Complement:
443 - 576

Cost:
£3.828 million / $15.314 million

Distribution of weights at normal displacement:
Armament: 517 tons, 6.1 %
- Guns: 501 tons, 5.9 %
- Weapons: 16 tons, 0.2 %
Armour: 2 302 tons, 27.0 %
- Belts: 986 tons, 11.6 %
- Armament: 282 tons, 3.3 %
- Armour Deck: 1 017 tons, 11.9 %
- Conning Tower: 18 tons, 0.2 %
Machinery: 1 663 tons, 19.5 %
Hull, fittings & equipment: 2 989 tons, 35.1 %
Fuel, ammunition & stores: 1 053 tons, 12.3 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
10 434 lbs / 4 733 Kg = 36.9 x 8.3 " / 210 mm shells or 1.5 torpedoes
Stability (Unstable if below 1.00): 1.04
Metacentric height 2.1 ft / 0.6 m
Roll period: 15.3 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0.89
Seaboat quality (Average = 1.00): 1.03

Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.550 / 0.556
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 22.91 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 21.46 %, 25.20 ft / 7.68 m, 20.64 ft / 6.29 m
- Forward deck: 30.00 %, 20.64 ft / 6.29 m, 16.04 ft / 4.89 m
- Aft deck: 27.08 %, 16.04 ft / 4.89 m, 16.04 ft / 4.89 m
- Quarter deck: 21.46 %, 16.04 ft / 4.89 m, 16.04 ft / 4.89 m
- Average freeboard: 18.11 ft / 5.52 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 87.8 %
- Above water (accommodation/working, high = better): 139.7 %
Waterplane Area: 19 231 Square feet or 1 787 Square metres
Displacement factor (Displacement / loading): 112 %
Structure weight / hull surface area: 101 lbs/sq ft or 495 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.50
- Overall: 1.00
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room

The Jacob Bagge and her sistership Johan af Puke were the first major ships built for the Swedish Navy since the Göta Lejon class pansarskepp of the early 20ies. They signaled a return to the 21cm main armament of earlier Swedish pansarskepp while the armour and speed made them comparable to a heavy cruiser. As such they were classified as pansarkryssare and considered an amalgation of the early armoured cruiser concepts with the now outdated pansarskepp concept.

The plan was for the Pansarkryssare to be the flagships of two divisions of cruisers and destroyers while the remaining Göta Lejon and Karl XI class formed a heavy division for the purpose of providing support if need be.

(this ship is the last in a series of ships i have been tinkering on starting with a different Oscar II. Unfortunatly i don't have access to the computer with them on right now. The idea is a standard of 2x2 21cm guns, while focusing on the speed of the ship. And later 3x2 21 cm and a 2x2 254 cm ship instead of the OTL Sveriges. Faster than a battleship, more heavily armed/armoured than a cruiser.)

 

[Ash19256]

Question, I am not yet really good on SpringSharp, so what would have resulted if the USN had built 2 follow on New York/ Texas Battleships, with the following changes: replace the triple expansion engines with turbines, and delete turret 3, amidships. Using the below deck space for additional boilers and engines, also replace coal with oil. What kind of performance boost would you See?

Here's what I came up with trying to mock this up in SpringSharp.

Spoiler: USS Michigan, hull number BB-36

USS Michigan, American Battleship laid down 1912

Displacement:
19,888 t light; 21,655 t standard; 27,000 t normal; 31,276 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(575.94 ft / 564.30 ft) x 95.14 ft x (28.51 / 32.26 ft)
(175.55 m / 172.00 m) x 29.00 m x (8.69 / 9.83 m)

Armament:
8 - 14.00" / 356 mm 45.0 cal guns - 1,400.00lbs / 635.03kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1912 Model
2 x 2-gun mounts on centreline, forward deck forward
1 raised mount - superfiring
2 x 2-gun mounts on centreline, aft deck aft
1 raised mount - superfiring
18 - 5.00" / 127 mm 51.0 cal guns - 55.00lbs / 24.95kg shells, 450 per gun
Breech loading guns in casemate mounts, 1912 Model
18 x Single mounts on sides, evenly spread
3 - 5.00" / 127 mm 51.0 cal guns - 55.00lbs / 24.95kg shells, 450 per gun
Breech loading guns in deck mounts, 1912 Model
3 x Single mounts on centreline, evenly spread
Weight of broadside 12,355 lbs / 5,604 kg
4 - 21.0" / 533 mm, 16.40 ft / 5.00 m torpedoes - 1.057 t each, 4.227 t total
In 4 sets of submerged side tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12.0" / 305 mm 263.09 ft / 80.19 m 11.71 ft / 3.57 m
Ends: 2.01" / 51 mm 301.21 ft / 91.81 m 11.71 ft / 3.57 m
Upper: 2.01" / 51 mm 263.09 ft / 80.19 m 8.01 ft / 2.44 m
Main Belt covers 72 % of normal length

- Torpedo Bulkhead:
3.00" / 76 mm 263.09 ft / 80.19 m 27.07 ft / 8.25 m

- Hull Bulges:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 0.24" / 6 mm 12.0" / 305 mm
2nd: 8.66" / 220 mm 6.69" / 170 mm 2.95" / 75 mm
3rd: 3.94" / 100 mm 0.98" / 25 mm -

- Armoured deck - multiple decks: 2.01" / 51 mm For and Aft decks
Forecastle: 0.98" / 25 mm Quarter deck: 0.98" / 25 mm

- Conning towers: Forward 12.01" / 305 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 33,604 shp / 25,069 Kw = 21.00 kts
Range 15,360nm at 15.00 kts
Bunker at max displacement = 9,622 tons

Complement:
1,053 - 1,369

Cost:
£1.990 million / $7.962 million

Distribution of weights at normal displacement:
Armament: 2,545 tons, 9.4 %
- Guns: 2,541 tons, 9.4 %
- Torpedoes: 4 tons, 0.0 %
Armour: 7,102 tons, 26.3 %
- Belts: 2,257 tons, 8.4 %
- Torpedo bulkhead: 790 tons, 2.9 %
- Armament: 2,469 tons, 9.1 %
- Armour Deck: 1,352 tons, 5.0 %
- Conning Tower: 233 tons, 0.9 %
Machinery: 1,340 tons, 5.0 %
Hull, fittings & equipment: 8,677 tons, 32.1 %
Fuel, ammunition & stores: 7,112 tons, 26.3 %
Miscellaneous weights: 225 tons, 0.8 %
- Hull below water: 75 tons
- Hull void weights: 75 tons
- Hull above water: 25 tons
- On freeboard deck: 25 tons
- Above deck: 25 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
52,176 lbs / 23,667 Kg = 38.1 x 14.0 " / 356 mm shells or 9.4 torpedoes
Stability (Unstable if below 1.00): 1.33
Metacentric height 7.7 ft / 2.3 m
Roll period: 14.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.61
Seaboat quality (Average = 1.00): 1.80

Hull form characteristics:
Hull has a flush deck,
a straight bulbous bow and a round stern
Block coefficient (normal/deep): 0.617 / 0.632
Length to Beam Ratio: 5.93 : 1
'Natural speed' for length: 23.76 kts
Power going to wave formation at top speed: 46 %
Trim (Max stability = 0, Max steadiness = 100): 39
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 26.69 %, 22.97 ft / 7.00 m, 21.33 ft / 6.50 m
- Forward deck: 23.31 %, 21.33 ft / 6.50 m, 21.33 ft / 6.50 m
- Aft deck: 23.31 %, 21.33 ft / 6.50 m, 21.33 ft / 6.50 m
- Quarter deck: 26.69 %, 21.33 ft / 6.50 m, 22.97 ft / 7.00 m
- Average freeboard: 21.72 ft / 6.62 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 71.7 %
- Above water (accommodation/working, high = better): 153.9 %
Waterplane Area: 39,908 Square feet or 3,708 Square metres
Displacement factor (Displacement / loading): 131 %
Structure weight / hull surface area: 178 lbs/sq ft or 867 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 2.05
- 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
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Modified New York-class battleship design, deleting the midships gun turret and replacing the triple expansion engines and coal burning boilers with steam turbines and oil-fired boilers. The end result has a lighter standard load than the New York-class, but has more than twice the range at a higher cruising speed. Theoretically, one could instead have decided to increase the armoring of the Michigan-class significantly without negatively impacting the range all that much compared to the New York-class.

This is if you wanted to stick to minimal changes beyond what you suggested. If one was given free reign to break away from the Standard design philosophy, you could probably coax a few more knots out of the amount of power that can be run through two shafts.

 

[edgeworthy]

Here's what I came up with trying to mock this up in SpringSharp.

Spoiler: USS Michigan, hull number BB-36

USS Michigan, American Battleship laid down 1912

Displacement:
19,888 t light; 21,655 t standard; 27,000 t normal; 31,276 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(575.94 ft / 564.30 ft) x 95.14 ft x (28.51 / 32.26 ft)
(175.55 m / 172.00 m) x 29.00 m x (8.69 / 9.83 m)

Armament:
8 - 14.00" / 356 mm 45.0 cal guns - 1,400.00lbs / 635.03kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1912 Model
2 x 2-gun mounts on centreline, forward deck forward
1 raised mount - superfiring
2 x 2-gun mounts on centreline, aft deck aft
1 raised mount - superfiring
18 - 5.00" / 127 mm 51.0 cal guns - 55.00lbs / 24.95kg shells, 450 per gun
Breech loading guns in casemate mounts, 1912 Model
18 x Single mounts on sides, evenly spread
3 - 5.00" / 127 mm 51.0 cal guns - 55.00lbs / 24.95kg shells, 450 per gun
Breech loading guns in deck mounts, 1912 Model
3 x Single mounts on centreline, evenly spread
Weight of broadside 12,355 lbs / 5,604 kg
4 - 21.0" / 533 mm, 16.40 ft / 5.00 m torpedoes - 1.057 t each, 4.227 t total
In 4 sets of submerged side tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12.0" / 305 mm 263.09 ft / 80.19 m 11.71 ft / 3.57 m
Ends: 2.01" / 51 mm 301.21 ft / 91.81 m 11.71 ft / 3.57 m
Upper: 2.01" / 51 mm 263.09 ft / 80.19 m 8.01 ft / 2.44 m
Main Belt covers 72 % of normal length

- Torpedo Bulkhead:
3.00" / 76 mm 263.09 ft / 80.19 m 27.07 ft / 8.25 m

- Hull Bulges:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 0.24" / 6 mm 12.0" / 305 mm
2nd: 8.66" / 220 mm 6.69" / 170 mm 2.95" / 75 mm
3rd: 3.94" / 100 mm 0.98" / 25 mm -

- Armoured deck - multiple decks: 2.01" / 51 mm For and Aft decks
Forecastle: 0.98" / 25 mm Quarter deck: 0.98" / 25 mm

- Conning towers: Forward 12.01" / 305 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 33,604 shp / 25,069 Kw = 21.00 kts
Range 15,360nm at 15.00 kts
Bunker at max displacement = 9,622 tons

Complement:
1,053 - 1,369

Cost:
£1.990 million / $7.962 million

Distribution of weights at normal displacement:
Armament: 2,545 tons, 9.4 %
- Guns: 2,541 tons, 9.4 %
- Torpedoes: 4 tons, 0.0 %
Armour: 7,102 tons, 26.3 %
- Belts: 2,257 tons, 8.4 %
- Torpedo bulkhead: 790 tons, 2.9 %
- Armament: 2,469 tons, 9.1 %
- Armour Deck: 1,352 tons, 5.0 %
- Conning Tower: 233 tons, 0.9 %
Machinery: 1,340 tons, 5.0 %
Hull, fittings & equipment: 8,677 tons, 32.1 %
Fuel, ammunition & stores: 7,112 tons, 26.3 %
Miscellaneous weights: 225 tons, 0.8 %
- Hull below water: 75 tons
- Hull void weights: 75 tons
- Hull above water: 25 tons
- On freeboard deck: 25 tons
- Above deck: 25 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
52,176 lbs / 23,667 Kg = 38.1 x 14.0 " / 356 mm shells or 9.4 torpedoes
Stability (Unstable if below 1.00): 1.33
Metacentric height 7.7 ft / 2.3 m
Roll period: 14.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.61
Seaboat quality (Average = 1.00): 1.80

Hull form characteristics:
Hull has a flush deck,
a straight bulbous bow and a round stern
Block coefficient (normal/deep): 0.617 / 0.632
Length to Beam Ratio: 5.93 : 1
'Natural speed' for length: 23.76 kts
Power going to wave formation at top speed: 46 %
Trim (Max stability = 0, Max steadiness = 100): 39
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 26.69 %, 22.97 ft / 7.00 m, 21.33 ft / 6.50 m
- Forward deck: 23.31 %, 21.33 ft / 6.50 m, 21.33 ft / 6.50 m
- Aft deck: 23.31 %, 21.33 ft / 6.50 m, 21.33 ft / 6.50 m
- Quarter deck: 26.69 %, 21.33 ft / 6.50 m, 22.97 ft / 7.00 m
- Average freeboard: 21.72 ft / 6.62 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 71.7 %
- Above water (accommodation/working, high = better): 153.9 %
Waterplane Area: 39,908 Square feet or 3,708 Square metres
Displacement factor (Displacement / loading): 131 %
Structure weight / hull surface area: 178 lbs/sq ft or 867 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 2.05
- 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
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Modified New York-class battleship design, deleting the midships gun turret and replacing the triple expansion engines and coal burning boilers with steam turbines and oil-fired boilers. The end result has a lighter standard load than the New York-class, but has more than twice the range at a higher cruising speed. Theoretically, one could instead have decided to increase the armoring of the Michigan-class significantly without negatively impacting the range all that much compared to the New York-class.

This is if you wanted to stick to minimal changes beyond what you suggested. If one was given free reign to break away from the Standard design philosophy, you could probably coax a few more knots out of the amount of power that can be run through two shafts.

For the era that's a pretty impressive Torpedo Defence?

 

[Butchpfd]

Here's what I came up with trying to mock this up in SpringSharp.

Spoiler: USS Michigan, hull number BB-36

USS Michigan, American Battleship laid down 1912

Displacement:
19,888 t light; 21,655 t standard; 27,000 t normal; 31,276 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(575.94 ft / 564.30 ft) x 95.14 ft x (28.51 / 32.26 ft)
(175.55 m / 172.00 m) x 29.00 m x (8.69 / 9.83 m)

Armament:
8 - 14.00" / 356 mm 45.0 cal guns - 1,400.00lbs / 635.03kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1912 Model
2 x 2-gun mounts on centreline, forward deck forward
1 raised mount - superfiring
2 x 2-gun mounts on centreline, aft deck aft
1 raised mount - superfiring
18 - 5.00" / 127 mm 51.0 cal guns - 55.00lbs / 24.95kg shells, 450 per gun
Breech loading guns in casemate mounts, 1912 Model
18 x Single mounts on sides, evenly spread
3 - 5.00" / 127 mm 51.0 cal guns - 55.00lbs / 24.95kg shells, 450 per gun
Breech loading guns in deck mounts, 1912 Model
3 x Single mounts on centreline, evenly spread
Weight of broadside 12,355 lbs / 5,604 kg
4 - 21.0" / 533 mm, 16.40 ft / 5.00 m torpedoes - 1.057 t each, 4.227 t total
In 4 sets of submerged side tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12.0" / 305 mm 263.09 ft / 80.19 m 11.71 ft / 3.57 m
Ends: 2.01" / 51 mm 301.21 ft / 91.81 m 11.71 ft / 3.57 m
Upper: 2.01" / 51 mm 263.09 ft / 80.19 m 8.01 ft / 2.44 m
Main Belt covers 72 % of normal length

- Torpedo Bulkhead:
3.00" / 76 mm 263.09 ft / 80.19 m 27.07 ft / 8.25 m

- Hull Bulges:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 0.24" / 6 mm 12.0" / 305 mm
2nd: 8.66" / 220 mm 6.69" / 170 mm 2.95" / 75 mm
3rd: 3.94" / 100 mm 0.98" / 25 mm -

- Armoured deck - multiple decks: 2.01" / 51 mm For and Aft decks
Forecastle: 0.98" / 25 mm Quarter deck: 0.98" / 25 mm

- Conning towers: Forward 12.01" / 305 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 33,604 shp / 25,069 Kw = 21.00 kts
Range 15,360nm at 15.00 kts
Bunker at max displacement = 9,622 tons

Complement:
1,053 - 1,369

Cost:
£1.990 million / $7.962 million

Distribution of weights at normal displacement:
Armament: 2,545 tons, 9.4 %
- Guns: 2,541 tons, 9.4 %
- Torpedoes: 4 tons, 0.0 %
Armour: 7,102 tons, 26.3 %
- Belts: 2,257 tons, 8.4 %
- Torpedo bulkhead: 790 tons, 2.9 %
- Armament: 2,469 tons, 9.1 %
- Armour Deck: 1,352 tons, 5.0 %
- Conning Tower: 233 tons, 0.9 %
Machinery: 1,340 tons, 5.0 %
Hull, fittings & equipment: 8,677 tons, 32.1 %
Fuel, ammunition & stores: 7,112 tons, 26.3 %
Miscellaneous weights: 225 tons, 0.8 %
- Hull below water: 75 tons
- Hull void weights: 75 tons
- Hull above water: 25 tons
- On freeboard deck: 25 tons
- Above deck: 25 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
52,176 lbs / 23,667 Kg = 38.1 x 14.0 " / 356 mm shells or 9.4 torpedoes
Stability (Unstable if below 1.00): 1.33
Metacentric height 7.7 ft / 2.3 m
Roll period: 14.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.61
Seaboat quality (Average = 1.00): 1.80

Hull form characteristics:
Hull has a flush deck,
a straight bulbous bow and a round stern
Block coefficient (normal/deep): 0.617 / 0.632
Length to Beam Ratio: 5.93 : 1
'Natural speed' for length: 23.76 kts
Power going to wave formation at top speed: 46 %
Trim (Max stability = 0, Max steadiness = 100): 39
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 26.69 %, 22.97 ft / 7.00 m, 21.33 ft / 6.50 m
- Forward deck: 23.31 %, 21.33 ft / 6.50 m, 21.33 ft / 6.50 m
- Aft deck: 23.31 %, 21.33 ft / 6.50 m, 21.33 ft / 6.50 m
- Quarter deck: 26.69 %, 21.33 ft / 6.50 m, 22.97 ft / 7.00 m
- Average freeboard: 21.72 ft / 6.62 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 71.7 %
- Above water (accommodation/working, high = better): 153.9 %
Waterplane Area: 39,908 Square feet or 3,708 Square metres
Displacement factor (Displacement / loading): 131 %
Structure weight / hull surface area: 178 lbs/sq ft or 867 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 2.05
- 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
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Modified New York-class battleship design, deleting the midships gun turret and replacing the triple expansion engines and coal burning boilers with steam turbines and oil-fired boilers. The end result has a lighter standard load than the New York-class, but has more than twice the range at a higher cruising speed. Theoretically, one could instead have decided to increase the armoring of the Michigan-class significantly without negatively impacting the range all that much compared to the New York-class.

This is if you wanted to stick to minimal changes beyond what you suggested. If one was given free reign to break away from the Standard design philosophy, you could probably coax a few more knots out of the amount of power that can be run through two shafts.

Thanks you I was hoping for a bit more speed similar to a QE class BB. However the range and cruising speed is impressive. The as ships imo would work well in the Pacific.

 

[Killer in]

Thanks you I was hoping for a bit more speed similar to a QE class BB. However the range and cruising speed is impressive. The as ships imo would work well in the Pacific.

I thinks that due to the limited capacity of the two propeller shafts

 

[Not James Stockdale]

Here's what I came up with trying to mock this up in SpringSharp.

Spoiler: USS Michigan, hull number BB-36

USS Michigan, American Battleship laid down 1912

Displacement:
19,888 t light; 21,655 t standard; 27,000 t normal; 31,276 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(575.94 ft / 564.30 ft) x 95.14 ft x (28.51 / 32.26 ft)
(175.55 m / 172.00 m) x 29.00 m x (8.69 / 9.83 m)

Armament:
8 - 14.00" / 356 mm 45.0 cal guns - 1,400.00lbs / 635.03kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1912 Model
2 x 2-gun mounts on centreline, forward deck forward
1 raised mount - superfiring
2 x 2-gun mounts on centreline, aft deck aft
1 raised mount - superfiring
18 - 5.00" / 127 mm 51.0 cal guns - 55.00lbs / 24.95kg shells, 450 per gun
Breech loading guns in casemate mounts, 1912 Model
18 x Single mounts on sides, evenly spread
3 - 5.00" / 127 mm 51.0 cal guns - 55.00lbs / 24.95kg shells, 450 per gun
Breech loading guns in deck mounts, 1912 Model
3 x Single mounts on centreline, evenly spread
Weight of broadside 12,355 lbs / 5,604 kg
4 - 21.0" / 533 mm, 16.40 ft / 5.00 m torpedoes - 1.057 t each, 4.227 t total
In 4 sets of submerged side tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12.0" / 305 mm 263.09 ft / 80.19 m 11.71 ft / 3.57 m
Ends: 2.01" / 51 mm 301.21 ft / 91.81 m 11.71 ft / 3.57 m
Upper: 2.01" / 51 mm 263.09 ft / 80.19 m 8.01 ft / 2.44 m
Main Belt covers 72 % of normal length

- Torpedo Bulkhead:
3.00" / 76 mm 263.09 ft / 80.19 m 27.07 ft / 8.25 m

- Hull Bulges:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 0.24" / 6 mm 12.0" / 305 mm
2nd: 8.66" / 220 mm 6.69" / 170 mm 2.95" / 75 mm
3rd: 3.94" / 100 mm 0.98" / 25 mm -

- Armoured deck - multiple decks: 2.01" / 51 mm For and Aft decks
Forecastle: 0.98" / 25 mm Quarter deck: 0.98" / 25 mm

- Conning towers: Forward 12.01" / 305 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 33,604 shp / 25,069 Kw = 21.00 kts
Range 15,360nm at 15.00 kts
Bunker at max displacement = 9,622 tons

Complement:
1,053 - 1,369

Cost:
£1.990 million / $7.962 million

Distribution of weights at normal displacement:
Armament: 2,545 tons, 9.4 %
- Guns: 2,541 tons, 9.4 %
- Torpedoes: 4 tons, 0.0 %
Armour: 7,102 tons, 26.3 %
- Belts: 2,257 tons, 8.4 %
- Torpedo bulkhead: 790 tons, 2.9 %
- Armament: 2,469 tons, 9.1 %
- Armour Deck: 1,352 tons, 5.0 %
- Conning Tower: 233 tons, 0.9 %
Machinery: 1,340 tons, 5.0 %
Hull, fittings & equipment: 8,677 tons, 32.1 %
Fuel, ammunition & stores: 7,112 tons, 26.3 %
Miscellaneous weights: 225 tons, 0.8 %
- Hull below water: 75 tons
- Hull void weights: 75 tons
- Hull above water: 25 tons
- On freeboard deck: 25 tons
- Above deck: 25 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
52,176 lbs / 23,667 Kg = 38.1 x 14.0 " / 356 mm shells or 9.4 torpedoes
Stability (Unstable if below 1.00): 1.33
Metacentric height 7.7 ft / 2.3 m
Roll period: 14.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.61
Seaboat quality (Average = 1.00): 1.80

Hull form characteristics:
Hull has a flush deck,
a straight bulbous bow and a round stern
Block coefficient (normal/deep): 0.617 / 0.632
Length to Beam Ratio: 5.93 : 1
'Natural speed' for length: 23.76 kts
Power going to wave formation at top speed: 46 %
Trim (Max stability = 0, Max steadiness = 100): 39
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 26.69 %, 22.97 ft / 7.00 m, 21.33 ft / 6.50 m
- Forward deck: 23.31 %, 21.33 ft / 6.50 m, 21.33 ft / 6.50 m
- Aft deck: 23.31 %, 21.33 ft / 6.50 m, 21.33 ft / 6.50 m
- Quarter deck: 26.69 %, 21.33 ft / 6.50 m, 22.97 ft / 7.00 m
- Average freeboard: 21.72 ft / 6.62 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 71.7 %
- Above water (accommodation/working, high = better): 153.9 %
Waterplane Area: 39,908 Square feet or 3,708 Square metres
Displacement factor (Displacement / loading): 131 %
Structure weight / hull surface area: 178 lbs/sq ft or 867 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 2.05
- 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
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Modified New York-class battleship design, deleting the midships gun turret and replacing the triple expansion engines and coal burning boilers with steam turbines and oil-fired boilers. The end result has a lighter standard load than the New York-class, but has more than twice the range at a higher cruising speed. Theoretically, one could instead have decided to increase the armoring of the Michigan-class significantly without negatively impacting the range all that much compared to the New York-class.

This is if you wanted to stick to minimal changes beyond what you suggested. If one was given free reign to break away from the Standard design philosophy, you could probably coax a few more knots out of the amount of power that can be run through two shafts.

This is entirely nonsensical. The only point of removing the amidships turret would be to free up space for additional machinery. This ship has the same problem as H-class battleships or P-class battlecruisers, with far too much weight devoted to range (especially at 15 knots, almost battle speed for dreadnoughts).

Here, I have used the Springstyle drawings of the accepted BB-34 design as a basis, reducing the number of gun turrets by one and maintaining the same armor scheme and range at speed. Power output has been increased from 28,100 hp to 92,000 hp. The end result gets 27 knots, but is flagged with the "poor seakeeping" warnings that Springsharp tends to throw when you replace guns or armor with engines on wide, deep battleship hulls.

Spoiler: USS Michigan, hull number BB-36

USS Michigan (BB-36), United States Navy fast dreadnought laid down 1913

Displacement:
24,509 t light; 25,850 t standard; 27,011 t normal; 27,939 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(572.99 ft / 565.00 ft) x 95.00 ft x (28.50 / 29.31 ft)
(174.65 m / 172.21 m) x 28.96 m x (8.69 / 8.93 m)

Armament:
8 - 14.00" / 356 mm 45.0 cal guns - 1,500.00lbs / 680.39kg shells, 100 per gun
Breech loading guns in turret on barbette mounts, 1910 Model
4 x Twin mounts on centreline ends, evenly spread
2 raised mounts - superfiring
21 - 5.00" / 127 mm 51.0 cal guns - 50.00lbs / 22.68kg shells, 230 per gun
Breech loading guns in casemate mounts, 1910 Model
21 x Single mounts on sides, evenly spread
Weight of broadside 13,050 lbs / 5,919 kg
Main Torpedoes
4 - 21.0" / 533 mm, 15.00 ft / 4.57 m torpedoes - 0.979 t each, 3.917 t total
submerged side tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12.0" / 305 mm 367.25 ft / 111.94 m 21.40 ft / 6.52 m
Ends: 2.00" / 51 mm 197.73 ft / 60.27 m 21.40 ft / 6.52 m
Upper: 6.00" / 152 mm 367.25 ft / 111.94 m 8.00 ft / 2.44 m
Main Belt covers 100 % of normal length

- Torpedo Bulkhead - Strengthened structural bulkheads:
1.00" / 25 mm 367.25 ft / 111.94 m 27.07 ft / 8.25 m
Beam between torpedo bulkheads 85.00 ft / 25.91 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 8.00" / 203 mm 12.0" / 305 mm
2nd: 4.00" / 102 mm 2.00" / 51 mm 2.00" / 51 mm

- Armoured deck - multiple decks:
For and Aft decks: 1.50" / 38 mm
Forecastle: 1.00" / 25 mm Quarter deck: 1.00" / 25 mm

- Conning towers: Forward 12.00" / 305 mm, Aft 6.00" / 152 mm

Machinery:
Oil fired boilers, steam turbines,
Electric motors, 2 shafts, 92,000 shp / 68,632 Kw = 27.05 kts
Range 8,000nm at 10.00 kts
Bunker at max displacement = 2,089 tons

Complement:
1,053 - 1,369

Cost:
£2.695 million / $10.779 million

Distribution of weights at normal displacement:
Armament: 2,128 tons, 7.9 %
- Guns: 2,121 tons, 7.9 %
- Weapons: 8 tons, 0.0 %
Armour: 9,498 tons, 35.2 %
- Belts: 5,261 tons, 19.5 %
- Torpedo bulkhead: 368 tons, 1.4 %
- Armament: 2,472 tons, 9.2 %
- Armour Deck: 1,047 tons, 3.9 %
- Conning Towers: 349 tons, 1.3 %
Machinery: 3,605 tons, 13.3 %
Hull, fittings & equipment: 8,878 tons, 32.9 %
Fuel, ammunition & stores: 2,502 tons, 9.3 %
Miscellaneous weights: 400 tons, 1.5 %
- On freeboard deck: 400 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
29,242 lbs / 13,264 Kg = 21.3 x 14.0 " / 356 mm shells or 6.0 torpedoes
Stability (Unstable if below 1.00): 1.00
Metacentric height 4.7 ft / 1.4 m
Roll period: 18.5 seconds
Steadiness - As gun platform (Average = 50 %): 55 %
- Recoil effect (Restricted arc if above 1.00): 0.69
Seaboat quality (Average = 1.00): 0.78

Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.618 / 0.621
Length to Beam Ratio: 5.95 : 1
'Natural speed' for length: 23.77 kts
Power going to wave formation at top speed: 60 %
Trim (Max stability = 0, Max steadiness = 100): 71
Bow angle (Positive = bow angles forward): 14.00 degrees
Stern overhang: 3.00 ft / 0.91 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 20.00 ft / 6.10 m, 19.00 ft / 5.79 m
- Forward deck: 30.00 %, 19.00 ft / 5.79 m, 18.00 ft / 5.49 m
- Aft deck: 35.00 %, 18.00 ft / 5.49 m, 17.00 ft / 5.18 m
- Quarter deck: 15.00 %, 17.00 ft / 5.18 m, 17.00 ft / 5.18 m
- Average freeboard: 18.11 ft / 5.52 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): 129.7 %
Waterplane Area: 39,921 Square feet or 3,709 Square metres
Displacement factor (Displacement / loading): 98 %
Structure weight / hull surface area: 186 lbs/sq ft or 909 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.57
- Overall: 1.00
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

This design is somewhat reminiscent of CanisD's battlecruiser variant of HMS Agincourt, which exchanged two turrets for more engines and was capable of reaching 27 knots while still carrying full battleship armor. The speed of this hypothetical BB-36 design could be further improved, or engine weight decreased, by increasing the hull's length-to-width ratio.

 

[Some Bloke]

@steamboy, Assuming the R class Battlecruisers and the Cockattoo Cruisers are in the same timeline, any other design ideas?
What does post WWI Battleship design look like? Or the Carrier Defiance?

Some interesting butterflies reading between the lines like Mers-el-Kebir turning out differently.

 

[steamboy]

@steamboy, Assuming the R class Battlecruisers and the Cockattoo Cruisers are in the same timeline, any other design ideas?
What does post WWI Battleship design look like? Or the Carrier Defiance?

Some interesting butterflies reading between the lines like Mers-el-Kebir turning out differently.

Well I had an idea that the RN would go for a trio of 16-inch gunned ships as per the Washington treaty, but arguing for a slightly greater tonnage of 38,000 tons. This is far less restrictive than the 35k tons and you'd not have to get so radical with the weight shedding.

The Defiance is basically a carrier version of the Hood. The Admirals being laid down as a successor to the Revenge's, with higher speed, better protection etc but they were far from complete by the end of the war with resources being diverted elsewhere. Assuming the Washington treaty is kind of like OTL, then the RN needs some big carriers to counter the USN and IJN's two, so two of the incomplete hulls are converted into carriers. I was also thinking of having HMS Canada be completed as another Eagle type carrier, so the RN ends out with Argus, Eagle, her sister, Hermes and the two Admiral carriers Dauntless and Defiance. This is instead of Eagle, Argus and the three follies.

And you spotted that about Mers eh?