SDN World 3 Ship Design Thread

[Ma Deuce]

This is the tentative design for my next light cruiser. At 10,000 tons standard she may seem a bit bloated for a six-gun cruiser, but there was no other way to combine a 32-knot speed (the same as the previous class) without using a large transom, a 1.2 seakeeping rating, plus the scale of armor protection I wanted. Even then I had to scratch my head to keep it under 10,000 tons for the sake of the build-time threshold.

CL1927, Madagascar Light Cruiser laid down 1926 (Engine 1927)

Displacement:
9,603 t light; 9,999 t standard; 11,353 t normal; 12,435 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(575.79 ft / 567.59 ft) x 55.77 ft (Bulges 62.34 ft) x (22.97 / 24.74 ft)
(175.50 m / 173.00 m) x 17.00 m (Bulges 19.00 m) x (7.00 / 7.54 m)

Armament:
6 - 7.87" / 200 mm 50.0 cal guns - 279.99lbs / 127.00kg shells, 140 per gun
Breech loading guns in turret on barbette mounts, 1926 Model
3 x 2-gun mounts on centreline ends, majority forward
1 raised mount - superfiring
7 - 3.94" / 100.0 mm 50.0 cal guns - 30.86lbs / 14.00kg shells, 275 per gun
Dual purpose guns in deck mounts, 1926 Model
6 x Single mounts on sides, aft deck forward
6 raised mounts
1 x Single mount on centreline, aft deck aft
1 raised mount
20 - 0.59" / 15.0 mm 90.0 cal guns - 0.17lbs / 0.08kg shells, 3,000 per gun
Anti-air guns in deck mounts, 1926 Model
8 x Single mounts on centreline, evenly spread
8 raised mounts
6 x Twin mounts on centreline, evenly spread
6 raised mounts
Weight of broadside 1,899 lbs / 862 kg
Main Torpedoes
8 - 21.7" / 550 mm, 24.61 ft / 7.50 m torpedoes - 1.691 t each, 13.530 t total
In 2 sets of deck mounted side rotating tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5.51" / 140 mm 354.33 ft / 108.00 m 12.04 ft / 3.67 m
Ends: Unarmoured
Main Belt covers 96 % of normal length
Main Belt inclined 5.00 degrees (positive = in)

- Torpedo Bulkhead - Strengthened structural bulkheads:
0.98" / 25 mm 354.33 ft / 108.00 m 19.91 ft / 6.07 m
Beam between torpedo bulkheads 55.77 ft / 17.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 7.87" / 200 mm 3.74" / 95 mm 5.91" / 150 mm
2nd: 0.98" / 25 mm - -
3rd: 0.39" / 10 mm - -

- Armoured deck - single deck:
For and Aft decks: 2.56" / 65 mm
Forecastle: 0.00" / 0 mm Quarter deck: 1.57" / 40 mm

- Conning towers: Forward 5.91" / 150 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 86,000 shp / 64,156 Kw = 32.00 kts
Range 9,180nm at 15.00 kts
Bunker at max displacement = 2,436 tons

Complement:
549 - 714

Cost:
£3.078 million / $12.311 million

Distribution of weights at normal displacement:
Armament: 561 tons, 4.9 %
- Guns: 534 tons, 4.7 %
- Weapons: 27 tons, 0.2 %
Armour: 2,640 tons, 23.3 %
- Belts: 970 tons, 8.5 %
- Torpedo bulkhead: 257 tons, 2.3 %
- Armament: 475 tons, 4.2 %
- Armour Deck: 874 tons, 7.7 %
- Conning Tower: 64 tons, 0.6 %
Machinery: 2,715 tons, 23.9 %
Hull, fittings & equipment: 3,623 tons, 31.9 %
Fuel, ammunition & stores: 1,750 tons, 15.4 %
Miscellaneous weights: 64 tons, 0.6 %
- On freeboard deck: 64 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
13,613 lbs / 6,175 Kg = 55.8 x 7.9 " / 200 mm shells or 1.6 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 2.7 ft / 0.8 m
Roll period: 15.9 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.45
Seaboat quality (Average = 1.00): 1.20

Hull form characteristics:
Hull has a flush deck,
a normal bow and small transom stern
Block coefficient (normal/deep): 0.489 / 0.497
Length to Beam Ratio: 9.11 : 1
'Natural speed' for length: 25.69 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 12.90 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 22.10 %, 28.67 ft / 8.74 m, 21.49 ft / 6.55 m
- Forward deck: 25.00 %, 21.49 ft / 6.55 m, 19.69 ft / 6.00 m
- Aft deck: 37.40 %, 19.69 ft / 6.00 m, 19.69 ft / 6.00 m
- Quarter deck: 15.50 %, 19.69 ft / 6.00 m, 19.69 ft / 6.00 m
- Average freeboard: 20.94 ft / 6.38 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 92.5 %
- Above water (accommodation/working, high = better): 144.2 %
Waterplane Area: 21,380 Square feet or 1,986 Square metres
Displacement factor (Displacement / loading): 116 %
Structure weight / hull surface area: 108 lbs/sq ft or 525 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 1.87
- Overall: 1.00
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room
Good seaboat, rides out heavy weather easily

50 tons for aircraft carried
13.5 tons for torpedoes

[Thanas]

Having had a very long workday, I am too tired to put up a storypost, but I think I can post a design for review here.

It is also about time that Germany makes the switch to Diesel engines for those ships that do not require heavy deck armor. Application will however be confined to ships with slow max speed or light cruisers.

Hecht, Germany Destroyer escort laid down 1927

Displacement:
997 t light; 1,081 t standard; 1,275 t normal; 1,430 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(337.48 ft / 328.08 ft) x 34.45 ft x (9.84 / 10.62 ft)
(102.87 m / 100.00 m) x 10.50 m x (3.00 / 3.24 m)

Armament:
6 - 5.00" / 127 mm 38.0 cal guns - 59.33lbs / 26.91kg shells, 200 per gun
Dual purpose guns in deck and hoist mounts, 1927 Model
3 x Twin mounts on centreline ends, majority forward
1 raised mount - superfiring
8 - 1.57" / 40.0 mm 45.0 cal guns - 1.96lbs / 0.89kg shells, 1,000 per gun
Anti-air guns in deck and hoist mounts, 1927 Model
4 x Twin mounts on side ends, evenly spread
16 - 0.79" / 20.0 mm 22.0 cal guns - 0.22lbs / 0.10kg shells, 5,000 per gun
Machine guns in deck mounts, 1927 Model
4 x Quad mounts on sides, evenly spread
2 raised mounts
Weight of broadside 375 lbs / 170 kg
Main DC/AS Mortars
1 - 400.00 lbs / 181.44 kg Depth Charge + 80 reloads - 14.464 t total
in Depth charge throwers
2nd DC/AS Mortars
2 - 400.00 lbs / 181.44 kg Depth Charges + 160 reloads - 28.929 t total
in Stern depth charge racks

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm 1.00" / 25 mm 1.00" / 25 mm
2nd: 1.00" / 25 mm - -

- Conning towers: Forward 6.00" / 152 mm, Aft 0.00" / 0 mm

Machinery:
Diesel Internal combustion motors,
Electric cruising motors plus geared drives, 2 shafts, 6,445 shp / 4,808 Kw = 22.00 kts
Range 5,000nm at 15.00 kts
Bunker at max displacement = 349 tons

Complement:
106 - 138

Cost:
£0.343 million / $1.370 million

Distribution of weights at normal displacement:
Armament: 132 tons, 10.4 %
- Guns: 74 tons, 5.8 %
- Weapons: 58 tons, 4.5 %
Armour: 42 tons, 3.3 %
- Armament: 27 tons, 2.1 %
- Conning Tower: 15 tons, 1.2 %
Machinery: 203 tons, 16.0 %
Hull, fittings & equipment: 620 tons, 48.6 %
Fuel, ammunition & stores: 277 tons, 21.8 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,149 lbs / 975 Kg = 34.4 x 5.0 " / 127 mm shells or 0.9 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 1.3 ft / 0.4 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.63
Seaboat quality (Average = 1.00): 1.22

Hull form characteristics:
Hull has a flush deck,
a straight bulbous bow and a round stern
Block coefficient (normal/deep): 0.401 / 0.417
Length to Beam Ratio: 9.52 : 1
'Natural speed' for length: 18.11 kts
Power going to wave formation at top speed: 47 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 13.12 ft / 4.00 m, 9.51 ft / 2.90 m
- Forward deck: 30.00 %, 9.51 ft / 2.90 m, 9.19 ft / 2.80 m
- Aft deck: 35.00 %, 9.19 ft / 2.80 m, 9.19 ft / 2.80 m
- Quarter deck: 15.00 %, 9.19 ft / 2.80 m, 9.19 ft / 2.80 m
- Average freeboard: 9.59 ft / 2.92 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 77.5 %
- Above water (accommodation/working, high = better): 115.6 %
Waterplane Area: 6,961 Square feet or 647 Square metres
Displacement factor (Displacement / loading): 172 %
Structure weight / hull surface area: 63 lbs/sq ft or 309 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.38
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Adequate accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

64 tons for depth charges carried. (1 thrower, 2 stern racks, total of 160 charges)

A war emergency Destroyer escort design, created to free up real DDs for fleet service.

[Fingolfin_Noldor]

A 22knot... destroyer? Huh?

[Thanas]

A war emergency Destroyer escort design, created to free up real DDs for fleet service.

[Raesene]

New Tuscan Design, a superdestroyer/very small cruiser:

*********

Diamante, Tuscan Kingdom destroyer laid down 1927

Displacement:
4.301 t light; 4.497 t standard; 4.828 t normal; 5.093 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(487,20 ft / 475,72 ft) x 49,21 ft x (16,40 / 17,01 ft)
(148,50 m / 145,00 m) x 15,00 m x (5,00 / 5,18 m)

Armament:
6 - 5,51" / 140 mm 55,0 cal guns - 88,18lbs / 40,00kg shells, 200 per gun
Dual purpose guns in deck and hoist mounts, 1927 Model
3 x 2-gun mounts on centreline ends, evenly spread
1 raised mount - superfiring
12 - 1,57" / 40,0 mm 45,0 cal guns - 2,20lbs / 1,00kg shells, 150 per gun
Anti-air guns in deck mounts, 1927 Model
12 x Single mounts on sides, evenly spread
6 raised mounts
Weight of broadside 556 lbs / 252 kg
9 - 23,6" / 600 mm, 26,25 ft / 8,00 m torpedoes - 2,112 t each, 19,010 t total
In 3 sets of deck mounted centre rotating tubes
9 - 23,6" / 600 mm, 26,25 ft / 8,00 m torpedoes - 2,112 t each, 19,010 t total
In 3 sets of deck mounted reloads

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0,79" / 20 mm 0,59" / 15 mm 0,79" / 20 mm
2nd: 0,39" / 10 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 62.588 shp / 46.691 Kw = 34,00 kts
Range 4.000nm at 14,00 kts
Bunker at max displacement = 596 tons

Complement:
289 - 376

Cost:
£1,787 million / $7,148 million

Distribution of weights at normal displacement:
Armament: 233 tons, 4,8%
- Guns: 195 tons, 4,0%
- Torpedoes: 38 tons, 0,8%
Armour: 20 tons, 0,4%
- Armament: 20 tons, 0,4%
Machinery: 1.976 tons, 40,9%
Hull, fittings & equipment: 2.008 tons, 41,6%
Fuel, ammunition & stores: 527 tons, 10,9%
Miscellaneous weights: 65 tons, 1,3%
- Hull below water: 10 tons
- Hull above water: 25 tons
- On freeboard deck: 20 tons
- Above deck: 10 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3.352 lbs / 1.520 Kg = 40,0 x 5,5 " / 140 mm shells or 0,7 torpedoes
Stability (Unstable if below 1.00): 1,25
Metacentric height 2,6 ft / 0,8 m
Roll period: 12,8 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0,28
Seaboat quality (Average = 1.00): 1,01

Hull form characteristics:
Hull has rise forward of midbreak,
a normal bow and large transom stern
Block coefficient (normal/deep): 0,440 / 0,448
Length to Beam Ratio: 9,67 : 1
'Natural speed' for length: 25,15 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 25,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 15,00%, 24,61 ft / 7,50 m, 19,69 ft / 6,00 m
- Forward deck: 35,00%, 19,69 ft / 6,00 m, 19,69 ft / 6,00 m
- Aft deck: 35,00%, 16,40 ft / 5,00 m, 16,40 ft / 5,00 m
- Quarter deck: 15,00%, 16,40 ft / 5,00 m, 18,04 ft / 5,50 m
- Average freeboard: 18,46 ft / 5,63 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 145,6%
- Above water (accommodation/working, high = better): 124,9%
Waterplane Area: 15.385 Square feet or 1.429 Square metres
Displacement factor (Displacement / loading): 104%
Structure weight / hull surface area: 81 lbs/sq ft or 396 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,92
- Longitudinal: 2,13
- Overall: 1,00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent

12 building: Diamante, Rubino, Smeraldo, Zaffiro, Topazio, Tormalina, Opale, Turchese, Corniola, Ambra, Perla, Giada

*************

larger than desired, but as I see it as a high seas destroyer I wanted strength of 1.0 and average seakeeping.

[CmdrWilkens]

larger than desired, but as I see it as a high seas destroyer I wanted strength of 1.0 and average seakeeping.

4.5kt along with six 5"+ guns? Yeah that makes it a light cruiser...the only thing it is missing is range and armor. I get the range thing (since where would you really need to go) but I'd look to see if there is a way to slap some armor on the sucker otherwise its really just an under-defended CL.

[Thanas]

Alright, here are the two troop ship designs (based on US Attack transports of WWII):

Otter, Germany Troop ship laid down 1927 (Engine 1928)

Displacement:
3,804 t light; 3,961 t standard; 5,483 t normal; 6,700 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(414.69 ft / 410.11 ft) x 59.06 ft x (16.40 / 19.09 ft)
(126.40 m / 125.00 m) x 18.00 m x (5.00 / 5.82 m)

Armament:
2 - 5.00" / 127 mm 38.0 cal guns - 59.33lbs / 26.91kg shells, 250 per gun
Dual purpose guns in deck and hoist mounts, 1927 Model
2 x Single mounts on centreline ends, evenly spread
10 - 1.57" / 40.0 mm 45.0 cal guns - 1.96lbs / 0.89kg shells, 1,500 per gun
Breech loading guns in deck mounts, 1927 Model
4 x Twin mounts on side ends, evenly spread
1 x Twin mount on centreline amidships (forward deck)
1 raised mount
24 - 0.79" / 20.0 mm 22.0 cal guns - 0.22lbs / 0.10kg shells, 5,000 per gun
Anti-air guns in deck mounts, 1927 Model
6 x 2 row quad mounts on sides, evenly spread
Weight of broadside 144 lbs / 65 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.00" / 51 mm 140.00 ft / 42.67 m 12.00 ft / 3.66 m
Ends: Unarmoured
Main Belt covers 53 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm 1.00" / 25 mm 1.00" / 25 mm
2nd: 1.00" / 25 mm - -
3rd: 1.00" / 25 mm - -

- Armoured deck - single deck:
For and Aft decks: 1.00" / 25 mm
Forecastle: 1.00" / 25 mm Quarter deck: 1.00" / 25 mm

Machinery:
Diesel Internal combustion generators,
Electric motors, 2 shafts, 10,876 shp / 8,113 Kw = 20.00 kts
Range 20,000nm at 14.00 kts
Bunker at max displacement = 2,739 tons

Complement:
318 - 414

Cost:
£0.697 million / $2.788 million

Distribution of weights at normal displacement:
Armament: 33 tons, 0.6 %
- Guns: 33 tons, 0.6 %
Armour: 500 tons, 9.1 %
- Belts: 169 tons, 3.1 %
- Armament: 34 tons, 0.6 %
- Armour Deck: 296 tons, 5.4 %
Machinery: 339 tons, 6.2 %
Hull, fittings & equipment: 1,532 tons, 27.9 %
Fuel, ammunition & stores: 1,679 tons, 30.6 %
Miscellaneous weights: 1,400 tons, 25.5 %
- Hull below water: 600 tons
- Hull above water: 800 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
12,598 lbs / 5,714 Kg = 201.6 x 5.0 " / 127 mm shells or 2.9 torpedoes
Stability (Unstable if below 1.00): 1.70
Metacentric height 5.5 ft / 1.7 m
Roll period: 10.6 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.32

Hull form characteristics:
Hull has a flush deck,
an extended bulbous bow and a round stern
Block coefficient (normal/deep): 0.483 / 0.507
Length to Beam Ratio: 6.94 : 1
'Natural speed' for length: 20.25 kts
Power going to wave formation at top speed: 44 %
Trim (Max stability = 0, Max steadiness = 100): 54
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 9.84 ft / 3.00 m, 9.84 ft / 3.00 m
- Forward deck: 30.00 %, 9.84 ft / 3.00 m, 9.84 ft / 3.00 m
- Aft deck: 35.00 %, 9.84 ft / 3.00 m, 9.84 ft / 3.00 m
- Quarter deck: 15.00 %, 9.84 ft / 3.00 m, 9.84 ft / 3.00 m
- Average freeboard: 9.84 ft / 3.00 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 51.6 %
- Above water (accommodation/working, high = better): 93.7 %
Waterplane Area: 15,891 Square feet or 1,476 Square metres
Displacement factor (Displacement / loading): 204 %
Structure weight / hull surface area: 74 lbs/sq ft or 360 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.07
- Longitudinal: 0.98
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Adequate accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

1400 tons for 1350 tons cargo and 500 troops

Note that it takes advantage of the German proficiency in Diesel engines, which frees up both steam turbines for "real" warships as well as saves time. Plus, with that small of an armor deck, replacing them will not be an issue if need be. (Historically, diesels were not an option on battleships because replacing them was pretty much impossible due to the huge armored deck on top). The Armor scheme mostly saves the ship from bombs and artillery fire from the shores. Probably only calibers of 5" and higher will be a direct threat. It's draft should allow it to operate in the smaller harbors as well as pacific islands.

And for its bigger brother:

Blauwal, Germany troop ship laid down 1927 (Engine 1928)

Displacement:
5,834 t light; 6,063 t standard; 7,970 t normal; 9,495 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(430.03 ft / 426.51 ft) x 62.34 ft x (19.69 / 22.71 ft)
(131.07 m / 130.00 m) x 19.00 m x (6.00 / 6.92 m)

Armament:
2 - 5.00" / 127 mm 38.0 cal guns - 59.33lbs / 26.91kg shells, 450 per gun
Dual purpose guns in deck and hoist mounts, 1927 Model
2 x Single mounts on centreline ends, evenly spread
16 - 1.57" / 40.0 mm 45.0 cal guns - 1.96lbs / 0.89kg shells, 1,500 per gun
Breech loading guns in deck mounts, 1927 Model
4 x Twin mounts on side ends, evenly spread
4 x Twin mounts on sides, evenly spread
2 raised mounts
24 - 0.79" / 20.0 mm 22.0 cal guns - 0.22lbs / 0.10kg shells, 5,000 per gun
Anti-air guns in deck mounts, 1927 Model
4 x 2 row quad mounts on sides, evenly spread
2 x 2 row quad mounts on centreline, evenly spread
2 raised mounts
Weight of broadside 155 lbs / 70 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.00" / 51 mm 200.00 ft / 60.96 m 9.00 ft / 2.74 m
Ends: Unarmoured
Main Belt covers 72 % of normal length

- Torpedo Bulkhead - Strengthened structural bulkheads:
4.00" / 102 mm 450.00 ft / 137.16 m 20.00 ft / 6.10 m
Beam between torpedo bulkheads 56.00 ft / 17.07 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm 1.00" / 25 mm 1.00" / 25 mm
2nd: 1.00" / 25 mm - -
3rd: 1.00" / 25 mm - -

- Armoured deck - single deck:
For and Aft decks: 1.00" / 25 mm
Forecastle: 1.00" / 25 mm Quarter deck: 1.00" / 25 mm

Machinery:
Diesel Internal combustion motors,
Electric cruising motors plus geared drives, 1 shaft, 13,726 shp / 10,239 Kw = 20.00 kts
Range 20,000nm at 14.00 kts
Bunker at max displacement = 3,432 tons

Complement:
421 - 548

Cost:
£1.003 million / $4.012 million

Distribution of weights at normal displacement:
Armament: 35 tons, 0.4 %
- Guns: 35 tons, 0.4 %
Armour: 1,869 tons, 23.4 %
- Belts: 167 tons, 2.1 %
- Torpedo bulkhead: 1,332 tons, 16.7 %
- Armament: 41 tons, 0.5 %
- Armour Deck: 329 tons, 4.1 %
Machinery: 427 tons, 5.4 %
Hull, fittings & equipment: 502 tons, 6.3 %
Fuel, ammunition & stores: 2,137 tons, 26.8 %
Miscellaneous weights: 3,000 tons, 37.6 %
- Hull below water: 1,000 tons
- Hull above water: 2,000 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
13,752 lbs / 6,238 Kg = 220.0 x 5.0 " / 127 mm shells or 3.6 torpedoes
Stability (Unstable if below 1.00): 1.71
Metacentric height 5.9 ft / 1.8 m
Roll period: 10.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.52

Hull form characteristics:
Hull has raised forecastle, raised quarterdeck ,
an extended bulbous bow and a round stern
Block coefficient (normal/deep): 0.533 / 0.550
Length to Beam Ratio: 6.84 : 1
'Natural speed' for length: 20.65 kts
Power going to wave formation at top speed: 46 %
Trim (Max stability = 0, Max steadiness = 100): 46
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 23.00 %, 13.12 ft / 4.00 m, 13.12 ft / 4.00 m
- Forward deck: 25.00 %, 9.84 ft / 3.00 m, 9.84 ft / 3.00 m
- Aft deck: 32.00 %, 9.84 ft / 3.00 m, 9.84 ft / 3.00 m
- Quarter deck: 20.00 %, 13.12 ft / 4.00 m, 13.12 ft / 4.00 m
- Average freeboard: 11.25 ft / 3.43 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 68.4 %
- Above water (accommodation/working, high = better): 78.6 %
Waterplane Area: 17,658 Square feet or 1,641 Square metres
Displacement factor (Displacement / loading): 137 %
Structure weight / hull surface area: 75 lbs/sq ft or 364 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 1.03
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Cramped accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

3000 tons for 2900 tons cargo and 1500 troops

Note that the Otter class has a better cargo/troop ratio. The idea behind is that the Otter is supposed to either carry attack formations by itself for sustained operations or - if used with the Blauwal - to carry the brigade artillery/command staff. 3 6000t Blauwal and 1 4000t Otter will be enough to carry one brigade.

EDIT: Most of the AA armament is clustered around/on top of the superstructure for better coverage. I am not sure if that was clear from the springsharp layout.

[Thanas]

I have finally managed to simulate the N3 and G3 designs, using the real hull dimensions.

N3, Britain Battleship laid down 1926

Displacement:
44.892 t light; 47.544 t standard; 49.461 t normal; 50.995 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(877,80 ft / 862,50 ft) x 104,99 ft x (32,51 / 33,33 ft)
(267,55 m / 262,89 m) x 32,00 m x (9,91 / 10,16 m)

Armament:
9 - 18,00" / 457 mm 45,0 cal guns - 2.940,86lbs / 1.333,95kg shells, 90 per gun
Breech loading guns in turret on barbette mounts, 1926 Model
3 x Triple mounts on centreline ends, majority forward
1 raised mount - superfiring
16 - 6,00" / 152 mm 45,0 cal guns - 108,92lbs / 49,41kg shells, 250 per gun
Breech loading guns in deck and hoist mounts, 1926 Model
8 x Twin mounts on sides, evenly spread
32 - 1,57" / 40,0 mm 45,0 cal guns - 1,97lbs / 0,89kg shells, 1.500 per gun
Anti-air guns in deck mounts, 1926 Model
4 x 2 row octuple mounts on sides, evenly spread
6 - 4,72" / 120 mm 45,0 cal guns - 53,17lbs / 24,12kg shells, 250 per gun
Breech loading guns in deck and hoist mounts, 1926 Model
6 x Single mounts on sides, evenly spread
Weight of broadside 28.593 lbs / 12.969 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 15,0" / 381 mm 380,00 ft / 115,82 m 14,00 ft / 4,27 m
Ends: Unarmoured
Main Belt covers 68% of normal length

- Torpedo Bulkhead - Additional damage containing bulkheads:
3,00" / 76 mm 380,00 ft / 115,82 m 25,00 ft / 7,62 m
Beam between torpedo bulkheads 98,00 ft / 29,87 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 16,0" / 406 mm 10,0" / 254 mm 15,0" / 381 mm
2nd: 1,00" / 25 mm 0,50" / 13 mm 0,50" / 13 mm
3rd: 1,00" / 25 mm - -
4th: 1,00" / 25 mm - -

- Armoured deck - multiple decks:
For and Aft decks: 8,00" / 203 mm
Forecastle: 4,50" / 114 mm Quarter deck: 4,50" / 114 mm

- Conning towers: Forward 14,00" / 356 mm, Aft 0,00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 64.867 shp / 48.391 Kw = 23,50 kts
Range 5.000nm at 15,00 kts
Bunker at max displacement = 3.451 tons

Complement:
1.657 - 2.155

Cost:
£15,639 million / $62,555 million

Distribution of weights at normal displacement:
Armament: 4.567 tons, 9,2%
- Guns: 4.567 tons, 9,2%
Armour: 18.208 tons, 36,8%
- Belts: 3.647 tons, 7,4%
- Torpedo bulkhead: 1.055 tons, 2,1%
- Armament: 4.125 tons, 8,3%
- Armour Deck: 8.975 tons, 18,1%
- Conning Tower: 406 tons, 0,8%
Machinery: 2.076 tons, 4,2%
Hull, fittings & equipment: 20.041 tons, 40,5%
Fuel, ammunition & stores: 4.569 tons, 9,2%
Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
73.998 lbs / 33.565 Kg = 25,4 x 18,0 " / 457 mm shells or 11,4 torpedoes
Stability (Unstable if below 1.00): 1,09
Metacentric height 6,3 ft / 1,9 m
Roll period: 17,5 seconds
Steadiness - As gun platform (Average = 50 %): 55 %
- Recoil effect (Restricted arc if above 1.00): 1,00
Seaboat quality (Average = 1.00): 1,28

Hull form characteristics:
Hull has a flush deck,
an extended bulbous bow and a round stern
Block coefficient (normal/deep): 0,588 / 0,591
Length to Beam Ratio: 8,22 : 1
'Natural speed' for length: 29,37 kts
Power going to wave formation at top speed: 36 %
Trim (Max stability = 0, Max steadiness = 100): 43
Bow angle (Positive = bow angles forward): 25,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20,00%, 32,81 ft / 10,00 m, 21,33 ft / 6,50 m
- Forward deck: 30,00%, 21,33 ft / 6,50 m, 21,33 ft / 6,50 m
- Aft deck: 35,00%, 21,33 ft / 6,50 m, 21,33 ft / 6,50 m
- Quarter deck: 15,00%, 21,33 ft / 6,50 m, 21,33 ft / 6,50 m
- Average freeboard: 22,24 ft / 6,78 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 67,3%
- Above water (accommodation/working, high = better): 160,5%
Waterplane Area: 65.488 Square feet or 6.084 Square metres
Displacement factor (Displacement / loading): 104%
Structure weight / hull surface area: 234 lbs/sq ft or 1.145 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,98
- Longitudinal: 1,18
- Overall: 1,00
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room
Good seaboat, rides out heavy weather easily

Sadly, there is no way to turn it into a good gunnery ship with that beam and this armament.

G3, Britain Battlecruiser laid down 1926

Displacement:
46.624 t light; 48.880 t standard; 50.975 t normal; 52.651 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(877,80 ft / 862,50 ft) x 104,99 ft x (32,51 / 33,36 ft)
(267,55 m / 262,89 m) x 32,00 m x (9,91 / 10,17 m)

Armament:
9 - 16,00" / 406 mm 45,0 cal guns - 2.065,47lbs / 936,88kg shells, 90 per gun
Breech loading guns in turret on barbette mounts, 1926 Model
3 x Triple mounts on centreline ends, majority forward
1 raised mount - superfiring
16 - 6,00" / 152 mm 45,0 cal guns - 108,93lbs / 49,41kg shells, 250 per gun
Breech loading guns in deck and hoist mounts, 1926 Model
8 x Twin mounts on sides, evenly spread
40 - 1,57" / 40,0 mm 45,0 cal guns - 1,96lbs / 0,89kg shells, 1.500 per gun
Anti-air guns in deck mounts, 1926 Model
4 x 2 row decuple mounts on sides, evenly spread
Weight of broadside 20.411 lbs / 9.258 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 14,0" / 356 mm 413,00 ft / 125,88 m 14,00 ft / 4,27 m
Ends: Unarmoured
Main Belt covers 74% of normal length

- Torpedo Bulkhead - Additional damage containing bulkheads:
2,00" / 51 mm 413,00 ft / 125,88 m 25,00 ft / 7,62 m
Beam between torpedo bulkheads 98,00 ft / 29,87 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 16,0" / 406 mm 10,0" / 254 mm 14,0" / 356 mm
2nd: 1,00" / 25 mm 0,50" / 13 mm 0,50" / 13 mm
3rd: 1,00" / 25 mm - -

- Armoured deck - multiple decks:
For and Aft decks: 9,00" / 229 mm
Forecastle: 4,50" / 114 mm Quarter deck: 4,50" / 114 mm

- Conning towers: Forward 14,00" / 356 mm, Aft 0,00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 165.911 shp / 123.770 Kw = 31,00 kts
Range 5.000nm at 15,00 kts
Bunker at max displacement = 3.771 tons

Complement:
1.696 - 2.205

Cost:
£14,777 million / $59,108 million

Distribution of weights at normal displacement:
Armament: 3.406 tons, 6,7%
- Guns: 3.406 tons, 6,7%
Armour: 19.008 tons, 37,3%
- Belts: 3.649 tons, 7,2%
- Torpedo bulkhead: 764 tons, 1,5%
- Armament: 3.621 tons, 7,1%
- Armour Deck: 10.559 tons, 20,7%
- Conning Tower: 415 tons, 0,8%
Machinery: 5.311 tons, 10,4%
Hull, fittings & equipment: 18.899 tons, 37,1%
Fuel, ammunition & stores: 4.351 tons, 8,5%
Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
74.914 lbs / 33.980 Kg = 36,6 x 16,0 " / 406 mm shells or 10,0 torpedoes
Stability (Unstable if below 1.00): 1,04
Metacentric height 5,8 ft / 1,8 m
Roll period: 18,3 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0,93
Seaboat quality (Average = 1.00): 1,22

Hull form characteristics:
Hull has a flush deck,
an extended bulbous bow and large transom stern
Block coefficient (normal/deep): 0,606 / 0,610
Length to Beam Ratio: 8,22 : 1
'Natural speed' for length: 33,65 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 25,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20,00%, 32,81 ft / 10,00 m, 24,93 ft / 7,60 m
- Forward deck: 30,00%, 24,93 ft / 7,60 m, 24,93 ft / 7,60 m
- Aft deck: 35,00%, 24,93 ft / 7,60 m, 24,93 ft / 7,60 m
- Quarter deck: 15,00%, 24,93 ft / 7,60 m, 24,93 ft / 7,60 m
- Average freeboard: 25,56 ft / 7,79 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 73,1%
- Above water (accommodation/working, high = better): 194,4%
Waterplane Area: 69.420 Square feet or 6.449 Square metres
Displacement factor (Displacement / loading): 107%
Structure weight / hull surface area: 208 lbs/sq ft or 1.014 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,97
- Longitudinal: 1,25
- Overall: 1,00
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

So unless anybody has any objections, I'll use these to calculate potential damage resistance to shells.

[Thanas]

Some ship designs currently fitting out:

The Scharnhorst class Battlecruiser (2 fitting out, 1 building):

Scharnhorst, Germany Schlachtkreuzer laid down 1925 (Engine 1926)

Displacement:
52,757 t light; 55,628 t standard; 58,938 t normal; 61,586 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(905.74 ft / 853.02 ft) x 113.19 ft x (36.09 / 37.36 ft)
(276.07 m / 260.00 m) x 34.50 m x (11.00 / 11.39 m)

Armament:
8 - 18.00" / 457 mm 45.0 cal guns - 3,900.00lbs / 1,769.01kg shells, 90 per gun
Breech loading guns in turret on barbette mounts, 1925 Model
1 x Twin mount on centreline ends, evenly spread
1 raised mount - superfiring
2 x Triple mounts on centreline ends, evenly spread
Main guns limited to end-on fire
16 - 4.00" / 102 mm 39.0 cal guns - 30.52lbs / 13.84kg shells, 250 per gun
Dual purpose guns in deck and hoist mounts, 1925 Model
8 x Twin mounts on sides, evenly spread
32 - 1.57" / 40.0 mm 45.0 cal guns - 1.97lbs / 0.89kg shells, 1,000 per gun
Anti-air guns in deck mounts, 1925 Model
16 x Twin mounts on sides, evenly spread
48 - 0.79" / 20.0 mm 22.0 cal guns - 0.22lbs / 0.10kg shells, 5,000 per gun
Anti-air guns in deck mounts, 1925 Model
8 x 2 row sextuple mounts on sides, evenly spread
2 raised mounts
Weight of broadside 31,762 lbs / 14,407 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 16.0" / 406 mm 429.00 ft / 130.76 m 16.00 ft / 4.88 m
Ends: Unarmoured
Main Belt covers 77 % of normal length

- Torpedo Bulkhead:
3.00" / 76 mm 429.00 ft / 130.76 m 25.00 ft / 7.62 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 24.0" / 610 mm 8.00" / 203 mm 17.0" / 432 mm
2nd: 2.00" / 51 mm 1.00" / 25 mm 1.00" / 25 mm
3rd: 0.50" / 13 mm - -
4th: 0.50" / 13 mm - -

- Armoured deck - single deck: 8.00" / 203 mm For and Aft decks
Forecastle: 3.50" / 89 mm Quarter deck: 3.50" / 89 mm

- Conning towers: Forward 12.00" / 305 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Electric cruising motors plus geared drives, 4 shafts, 159,428 shp / 118,933 Kw = 30.00 kts
Range 7,500nm at 15.00 kts
Bunker at max displacement = 5,958 tons

Complement:
1,890 - 2,458

Cost:
£15.704 million / $62.817 million

Distribution of weights at normal displacement:
Armament: 3,753 tons, 6.4 %
Armour: 20,897 tons, 35.5 %
- Belts: 4,968 tons, 8.4 %
- Torpedo bulkhead: 1,190 tons, 2.0 %
- Armament: 4,346 tons, 7.4 %
- Armour Deck: 10,001 tons, 17.0 %
- Conning Tower: 392 tons, 0.7 %
Machinery: 5,103 tons, 8.7 %
Hull, fittings & equipment: 22,929 tons, 38.9 %
Fuel, ammunition & stores: 6,181 tons, 10.5 %
Miscellaneous weights: 75 tons, 0.1 %
- Above deck: 75 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
88,604 lbs / 40,190 Kg = 30.4 x 18.0 " / 457 mm shells or 13.4 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 6.9 ft / 2.1 m
Roll period: 18.1 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 1.01
Seaboat quality (Average = 1.00): 1.20

Hull form characteristics:
Hull has a flush deck,
an extended bulbous bow and large transom stern
Block coefficient (normal/deep): 0.592 / 0.598
Length to Beam Ratio: 7.54 : 1
'Natural speed' for length: 33.75 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 40.00 degrees
Stern overhang: 19.69 ft / 6.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 16.00 %, 39.37 ft / 12.00 m, 23.95 ft / 7.30 m
- Forward deck: 34.00 %, 23.95 ft / 7.30 m, 23.95 ft / 7.30 m
- Aft deck: 37.00 %, 23.95 ft / 7.30 m, 23.62 ft / 7.20 m
- Quarter deck: 13.00 %, 23.62 ft / 7.20 m, 23.62 ft / 7.20 m
- Average freeboard: 24.83 ft / 7.57 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 77.2 %
- Above water (accommodation/working, high = better): 175.7 %
Waterplane Area: 73,037 Square feet or 6,785 Square metres
Displacement factor (Displacement / loading): 112 %
Structure weight / hull surface area: 239 lbs/sq ft or 1,168 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.44
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

75t for three aircraft carried

and the Imperator class BB (2 fitting out, 0 building)

Imperator, Germany Battleship laid down 1925 (Engine 1926)

Displacement:
52,092 t light; 55,709 t standard; 62,614 t normal; 68,138 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(721.10 ft / 688.98 ft) x 119.75 ft x (36.09 / 38.92 ft)
(219.79 m / 210.00 m) x 36.50 m x (11.00 / 11.86 m)

Armament:
11 - 18.00" / 457 mm 45.0 cal guns - 3,900.00lbs / 1,769.01kg shells, 90 per gun
Breech loading guns in turret on barbette mounts, 1925 Model
1 x Triple mount on centreline forward
1 raised mount - superfiring
2 x Quad mounts on centreline ends, evenly spread
16 - 5.00" / 127 mm 38.0 cal guns - 59.33lbs / 26.91kg shells, 250 per gun
Dual purpose guns in deck and hoist mounts, 1925 Model
4 x Twin mounts on sides, evenly spread
4 x Twin mounts on side ends, evenly spread
40 - 1.57" / 40.0 mm 45.0 cal guns - 1.97lbs / 0.89kg shells, 1,500 per gun
Anti-air guns in deck and hoist mounts, 1925 Model
20 x Twin mounts on sides, evenly spread
60 - 0.79" / 20.0 mm 22.0 cal guns - 0.22lbs / 0.10kg shells, 3,000 per gun
Anti-air guns in deck mounts, 1925 Model
10 x 2 row sextuple mounts on sides, evenly spread
2 raised mounts
Weight of broadside 43,941 lbs / 19,931 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 18.0" / 457 mm 307.00 ft / 93.57 m 18.00 ft / 5.49 m
Ends: Unarmoured
Main Belt covers 69 % of normal length

- Torpedo Bulkhead:
5.00" / 127 mm 307.00 ft / 93.57 m 25.00 ft / 7.62 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 26.0" / 660 mm 12.0" / 305 mm 20.0" / 508 mm
2nd: 2.00" / 51 mm 1.00" / 25 mm 1.00" / 25 mm
3rd: 2.00" / 51 mm 1.00" / 25 mm 1.00" / 25 mm
4th: 1.00" / 25 mm - -

- Armoured deck - single deck: 8.00" / 203 mm For and Aft decks
Forecastle: 3.50" / 89 mm Quarter deck: 3.50" / 89 mm

- Conning towers: Forward 16.00" / 406 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Electric cruising motors plus geared drives, 4 shafts, 66,116 shp / 49,322 Kw = 22.00 kts
Range 20,000nm at 14.00 kts
Bunker at max displacement = 12,429 tons

Complement:
1,978 - 2,572

Cost:
£17.085 million / $68.342 million

Distribution of weights at normal displacement:
Armament: 5,213 tons, 8.3 %
Armour: 22,078 tons, 35.3 %
- Belts: 4,977 tons, 7.9 %
- Torpedo bulkhead: 1,420 tons, 2.3 %
- Armament: 6,048 tons, 9.7 %
- Armour Deck: 9,090 tons, 14.5 %
- Conning Tower: 544 tons, 0.9 %
Machinery: 2,116 tons, 3.4 %
Hull, fittings & equipment: 22,610 tons, 36.1 %
Fuel, ammunition & stores: 10,522 tons, 16.8 %
Miscellaneous weights: 75 tons, 0.1 %
- Above deck: 75 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
101,872 lbs / 46,208 Kg = 34.9 x 18.0 " / 457 mm shells or 18.1 torpedoes
Stability (Unstable if below 1.00): 1.22
Metacentric height 9.4 ft / 2.9 m
Roll period: 16.4 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.96
Seaboat quality (Average = 1.00): 1.50

Hull form characteristics:
Hull has a flush deck,
an extended bulbous bow and a round stern
Block coefficient (normal/deep): 0.736 / 0.743
Length to Beam Ratio: 5.75 : 1
'Natural speed' for length: 26.25 kts
Power going to wave formation at top speed: 47 %
Trim (Max stability = 0, Max steadiness = 100): 47
Bow angle (Positive = bow angles forward): 35.00 degrees
Stern overhang: 9.84 ft / 3.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 31.82 ft / 9.70 m, 21.98 ft / 6.70 m
- Forward deck: 30.00 %, 21.98 ft / 6.70 m, 21.98 ft / 6.70 m
- Aft deck: 35.00 %, 21.98 ft / 6.70 m, 21.98 ft / 6.70 m
- Quarter deck: 15.00 %, 21.98 ft / 6.70 m, 21.98 ft / 6.70 m
- Average freeboard: 22.77 ft / 6.94 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 68.5 %
- Above water (accommodation/working, high = better): 144.5 %
Waterplane Area: 68,265 Square feet or 6,342 Square metres
Displacement factor (Displacement / loading): 112 %
Structure weight / hull surface area: 267 lbs/sq ft or 1,302 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 1.89
- 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

75t for 3 aircraft carried

Note: the 18" armor belt of this ship is not 18" armor. Rather, it is a decapping plate followed by a high quality 16" armor plate. See this and this for the ideas behind it. The Italians also incorporated that idea. The Imperator class is the first class to use this feature.

[Fingolfin_Noldor]

Hmm... I definitely can match my new battleships to the above spec... only if I allow the Block Coefficient to go above 0.65.

That was done on Steve's advice but...

Do you put any beam between bulkheads at all? Or that is Springsharp 2?

[Thanas]

Hmm... I definitely can match my new battleships to the above spec... only if I allow the Block Coefficient to go above 0.65.

That was done on Steve's advice but...

As Sea Skimmer said in this very same thread, the block coefficient may go above 0.65. It will make the hull look less slender and give the ship more of a bulky look, but it should not be a technical problem. So I have no problem with it.

Do you put any beam between bulkheads at all? Or that is Springsharp 2?

An early version of Springsharp 3, I think. I designed all my heavy units before 3b3 came out (I actually have 18 BB designs lying around). However, I cannot really be certain - I have the rtf. report files lying around, but the ship files are on another computer.

EDIT: Just tried to recreate the ship in springsharp 3b3. It works as well. Set as beam between bulkheads 113 feet.

[Steve]

I was told that beam between bulkhead should usually be about 30 feet less than full beam to represent the actual protective bulkheads on a ship.

[Thanas]

I was told that beam between bulkhead should usually be about 30 feet less than full beam to represent the actual protective bulkheads on a ship.

I'd be curious about that source, but it works as well with those specifications. In any case, I don't really feel like redesigning 18+ BB designs.

[Steve]

The source was my navy geek friend, who provided this:

http://www.kbismarck.com/proteccioni.html

[Thanas]

The source was my navy geek friend, who provided this:

http://www.kbismarck.com/proteccioni.html

That nowhere near gives a total of 30 feet between the bulkheads and the outer hull. The only place where that holds true is central amidships.

[Beowulf]

The source was my navy geek friend, who provided this:

http://www.kbismarck.com/proteccioni.html

That nowhere near gives a total of 30 feet between the bulkheads and the outer hull. The only place where that holds true is central amidships.

That is also where the maximum beam is, which is the point of the exercise.