WesWorld

[This is entirely informal for now. Cook up an aircraft carrier for Brazil with the following guidelines: no more than 721 feet at the waterline, no more than 20,250 fonts, AA battery with guns no larger than 90mm, no anti-ship armament, and a speed of 12/30.5-32. Has to have adequate work space, excellent personnel space, and be a good seaboat. Let's call the lay-down date 1929.]

Quoted

20,250 fonts

So you want a carrier covered in graffiti of differing styles? Sounds almost like Japan's casino carrier.

I meant tons, of course. I was looking through the carriers and with very few exceptions people seem to have completely skipped carriers that fit in type 3 slips and docks.

If you were buying a carrier to lay down in 1934, all AA may be appropriate, but in 1929, it is still likely that a carrier would have anti-shipping weapons, especially in the Brazillian Navy where cruisers to provide sufficient escort are in short supply.

As for designs, look at Hoo's carriers, which are in that tonnage range, and also the UK's Ark Royals.

I assume this isn't a design you'll be building for wesworld given its lay down date. i do have to agree given the year laid down she would likely mount a CL's armament. Reguardless heres my stab at it.

Project 201/29, Brazilian Aircraft Carrier laid down 1929

Displacement:
15,902 t light; 16,381 t standard; 18,514 t normal; 20,221 t full load

Dimensions: Length overall / water x beam x draught
700.21 ft / 675.00 ft x 80.00 ft x 24.00 ft (normal load)
213.42 m / 205.74 m x 24.38 m x 7.32 m

Armament:
16 - 3.54" / 90.0 mm guns (8x2 guns), 22.26lbs / 10.10kg shells, 1929 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, all raised mounts - superfiring
24 - 1.46" / 37.0 mm guns (12x2 guns), 1.55lbs / 0.70kg shells, 1929 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
24 - 0.79" / 20.0 mm guns (12x2 guns), 0.24lbs / 0.11kg shells, 1929 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
16 - 0.54" / 13.7 mm guns (8x2 guns), 0.08lbs / 0.04kg shells, 1929 Model
Machine guns in deck mounts
on side, evenly spread, 4 raised mounts
Weight of broadside 400 lbs / 182 kg
Shells per gun, main battery: 450

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.95" / 100 mm 465.00 ft / 141.73 m 10.00 ft / 3.05 m
Ends: Unarmoured
Upper: 1.00" / 25 mm 465.00 ft / 141.73 m 14.00 ft / 4.27 m
Main Belt covers 106 % of normal length

- Torpedo Bulkhead:
1.57" / 40 mm 465.00 ft / 141.73 m 22.00 ft / 6.71 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm 1.00" / 25 mm 1.58" / 40 mm
2nd: 1.00" / 25 mm - -

- Armour deck: 1.58" / 40 mm, Conning tower: 3.95" / 100 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 92,291 shp / 68,849 Kw = 31.08 kts
Range 12,000nm at 15.00 kts
Bunker at max displacement = 3,840 tons

Complement:
793 - 1,031

Cost:
£3.982 million / $15.927 million

Distribution of weights at normal displacement:
Armament: 50 tons, 0.3 %
Armour: 2,841 tons, 15.3 %
- Belts: 1,041 tons, 5.6 %
- Torpedo bulkhead: 594 tons, 3.2 %
- Armament: 57 tons, 0.3 %
- Armour Deck: 1,090 tons, 5.9 %
- Conning Tower: 60 tons, 0.3 %
Machinery: 2,834 tons, 15.3 %
Hull, fittings & equipment: 5,736 tons, 31.0 %
Fuel, ammunition & stores: 2,613 tons, 14.1 %
Miscellaneous weights: 4,440 tons, 24.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
26,288 lbs / 11,924 Kg = 1,181.1 x 3.5 " / 90 mm shells or 4.1 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 4.2 ft / 1.3 m
Roll period: 16.5 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.05
Seaboat quality (Average = 1.00): 1.26

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.500
Length to Beam Ratio: 8.44 : 1
'Natural speed' for length: 30.06 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 56
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 5.00 ft / 1.52 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 35.00 ft / 10.67 m
- Forecastle (20 %): 20.00 ft / 6.10 m
- Mid (50 %): 20.00 ft / 6.10 m
- Quarterdeck (15 %): 20.00 ft / 6.10 m
- Stern: 20.00 ft / 6.10 m
- Average freeboard: 21.20 ft / 6.46 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 105.3 %
- Above water (accommodation/working, high = better): 179.7 %
Waterplane Area: 37,415 Square feet or 3,476 Square metres
Displacement factor (Displacement / loading): 139 %
Structure weight / hull surface area: 107 lbs/sq ft or 520 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 1.16
- Overall: 1.01
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Gah, I must've been really tired. I meant 1939. Just a note, though, that I would really prefer is the ship was close to, if not at, the 721 foot limit.

Keep in mind that bow sheer ect needs to fit into a type 3 slip (721 feet). Heres the 1939 version.

Project 201/39, Brazilian Aircraft Carrier laid down 1939

Displacement:
17,583 t light; 18,096 t standard; 20,160 t normal; 21,811 t full load

Dimensions: Length overall / water x beam x draught
720.74 ft / 703.00 ft x 82.00 ft x 24.00 ft (normal load)
219.68 m / 214.27 m x 24.99 m x 7.32 m

Armament:
16 - 3.54" / 90.0 mm guns (8x2 guns), 22.26lbs / 10.10kg shells, 1939 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, all raised mounts - superfiring
24 - 1.46" / 37.0 mm guns (12x2 guns), 1.55lbs / 0.70kg shells, 1939 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
24 - 0.79" / 20.0 mm guns (12x2 guns), 0.24lbs / 0.11kg shells, 1939 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
16 - 0.54" / 13.7 mm guns (8x2 guns), 0.08lbs / 0.04kg shells, 1939 Model
Machine guns in deck mounts
on side, evenly spread, 4 raised mounts
Weight of broadside 400 lbs / 182 kg
Shells per gun, main battery: 450

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.95" / 100 mm 465.00 ft / 141.73 m 10.00 ft / 3.05 m
Ends: Unarmoured
Upper: 1.00" / 25 mm 465.00 ft / 141.73 m 14.00 ft / 4.27 m
Main Belt covers 102 % of normal length

- Torpedo Bulkhead:
2.38" / 60 mm 465.00 ft / 141.73 m 22.00 ft / 6.71 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.96" / 50 mm 1.00" / 25 mm 1.58" / 40 mm
2nd: 1.00" / 25 mm - -

- Armour deck: 2.38" / 60 mm, Conning tower: 3.95" / 100 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 97,651 shp / 72,847 Kw = 31.17 kts
Range 12,000nm at 15.00 kts
Bunker at max displacement = 3,715 tons

Complement:
845 - 1,099

Cost:
£5.977 million / $23.909 million

Distribution of weights at normal displacement:
Armament: 50 tons, 0.2 %
Armour: 3,843 tons, 19.1 %
- Belts: 1,047 tons, 5.2 %
- Torpedo bulkhead: 901 tons, 4.5 %
- Armament: 56 tons, 0.3 %
- Armour Deck: 1,775 tons, 8.8 %
- Conning Tower: 63 tons, 0.3 %
Machinery: 2,642 tons, 13.1 %
Hull, fittings & equipment: 6,609 tons, 32.8 %
Fuel, ammunition & stores: 2,576 tons, 12.8 %
Miscellaneous weights: 4,440 tons, 22.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
32,562 lbs / 14,770 Kg = 1,463.1 x 3.5 " / 90 mm shells or 5.5 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 4.5 ft / 1.4 m
Roll period: 16.3 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.04
Seaboat quality (Average = 1.00): 1.25

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.510
Length to Beam Ratio: 8.57 : 1
'Natural speed' for length: 30.60 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 56
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 5.00 ft / 1.52 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 35.00 ft / 10.67 m
- Forecastle (20 %): 20.00 ft / 6.10 m
- Mid (50 %): 20.00 ft / 6.10 m
- Quarterdeck (15 %): 20.00 ft / 6.10 m
- Stern: 20.00 ft / 6.10 m
- Average freeboard: 21.20 ft / 6.46 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 92.1 %
- Above water (accommodation/working, high = better): 181.8 %
Waterplane Area: 40,318 Square feet or 3,746 Square metres
Displacement factor (Displacement / loading): 144 %
Structure weight / hull surface area: 115 lbs/sq ft or 564 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.07
- Longitudinal: 1.14
- Overall: 1.08
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Nice. The formula for aircraft volume says this can carry 76 aircraft, IIRC the formula right, but something tells me the design doesn't live up to that potential. Here are some critiques.

1) The Marinha Imperial doesn't deploy 20mm guns, so delete those and use the spare tonnage for more aircraft.

2) Reduce the battery to 12/20/12 and use the tonnage for aircraft.

3) Make the cruise speed/distance 12/10,000. If there's free tonnage, use that for aircraft as well.

4) Drop the main belt to 3", the torpedo bulkhead to 2", the main gun armour to 1.5"/.5"/1.5", secondary gun armour to .5" and the conning tower to 3". Freed tonnage to be used for aircraft.

Basically I want these to be the best aircraft carriers they can be, not the quasi-cruisers that most carriers are now.

The aircraft capacity, is the square root of the tonnage allocated.

This design is modified from another carrier sim I had. I wasn't sure about the shell weight for the 90mm guns.
No points for guessing why I went for that name. ^_^

MIBN Hélio Castroneves, Brazil Carrier laid down 1939

Displacement:
16,206 t light; 16,684 t standard; 17,921 t normal; 18,911 t full load

Dimensions: Length overall / water x beam x draught
700.90 ft / 680.00 ft x 68.00 ft x 25.00 ft (normal load)
213.63 m / 207.26 m x 20.73 m x 7.62 m

Armament:
8 - 3.54" / 90.0 mm guns (4x2 guns), 25.00lbs / 11.34kg shells, 1939 Model
Anti-aircraft guns in deck mounts with hoists
on side, all amidships, 2 raised mounts - superfiring
8 - 3.54" / 90.0 mm guns in single mounts, 25.00lbs / 11.34kg shells, 1939 Model
Anti-aircraft guns in deck mounts with hoists
on side ends, evenly spread
24 - 1.46" / 37.0 mm guns (12x2 guns), 2.00lbs / 0.91kg shells, 1939 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 2 raised mounts
16 - 0.54" / 13.7 mm guns in single mounts, 0.08lbs / 0.04kg shells, 1939 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 449 lbs / 204 kg
Shells per gun, main battery: 400

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.00" / 102 mm 440.00 ft / 134.11 m 9.50 ft / 2.90 m
Ends: 10.0" / 254 mm 26.00 ft / 7.92 m 26.00 ft / 7.92 m
214.00 ft / 65.23 m Unarmoured ends
Main Belt covers 100 % 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: 2.00" / 51 mm 1.00" / 25 mm 1.00" / 25 mm
3rd: 1.00" / 25 mm - -

- Armour deck: 4.00" / 102 mm, Conning tower: 2.75" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 125,000 shp / 93,250 Kw = 33.69 kts
Range 7,500nm at 15.00 kts
Bunker at max displacement = 2,226 tons

Complement:
773 - 1,006

Cost:
£6.296 million / $25.183 million

Distribution of weights at normal displacement:
Armament: 49 tons, 0.3 %
Armour: 3,516 tons, 19.6 %
- Belts: 948 tons, 5.3 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 60 tons, 0.3 %
- Armour Deck: 2,469 tons, 13.8 %
- Conning Tower: 41 tons, 0.2 %
Machinery: 3,382 tons, 18.9 %
Hull, fittings & equipment: 5,558 tons, 31.0 %
Fuel, ammunition & stores: 1,715 tons, 9.6 %
Miscellaneous weights: 3,700 tons, 20.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
23,970 lbs / 10,873 Kg = 1,077.7 x 3.5 " / 90 mm shells or 2.3 torpedoes
Stability (Unstable if below 1.00): 1.07
Metacentric height 3.2 ft / 1.0 m
Roll period: 16.0 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
- Recoil effect (Restricted arc if above 1.00): 0.08
Seaboat quality (Average = 1.00): 1.22

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.543
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 29.62 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 43
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.00 ft / 0.91 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.00 ft / 9.45 m
- Forecastle (20 %): 29.00 ft / 8.84 m
- Mid (40 %): 29.00 ft / 8.84 m (21.00 ft / 6.40 m aft of break)
- Quarterdeck (15 %): 21.00 ft / 6.40 m
- Stern: 21.00 ft / 6.40 m
- Average freeboard: 24.36 ft / 7.42 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 86.9 %
- Above water (accommodation/working, high = better): 192.9 %
Waterplane Area: 33,359 Square feet or 3,099 Square metres
Displacement factor (Displacement / loading): 125 %
Structure weight / hull surface area: 101 lbs/sq ft or 494 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.42
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily

Roo,

why do you have 26' long, 10" thick end armor?

Icebreaking?

To plow through over-whelming waves.

Crap! I forgot to indicate that that is to sim the spare planes. ^_^;;
When you use ends armor that is 26 feet long and 26 feet high, you'll get 25 tons of ends armor for every inch thickness (25.012 tons to be exact). So if I want ten spare planes, I'll use 10 inches for the ends belt. If I want to change that to 15 spare planes, I'll change it to 15. If I need to recalculate the miscellaneous weight for the operational planes, I don't have to worry about forgetting to add weight for the spare planes. No need to recalculate the miscellaneous tonnage needed every time you change the number of spares.
Call it the lazy man's way.
Should be noted that the design barely changes when I remove the ends belt and add the tonnages to the miscellaneous weights (when doing that, stability drops by 0.01 and seaboat rating rises by 0.05). When you increase miscellaneous weights, more armor coverage is needed, so keeping that in mind, I always make sure that the armor coverage is enough.

Revised with requested specifications. I also tried to up the speed just slightly.

Project 201/29, Brazilian Aircraft Carrier laid down 1939

Displacement:
18,628 t light; 19,114 t standard; 20,244 t normal; 21,148 t full load

Dimensions: Length overall / water x beam x draught
720.74 ft / 703.00 ft x 82.00 ft x 24.10 ft (normal load)
219.68 m / 214.27 m x 24.99 m x 7.35 m

Armament:
12 - 3.54" / 90.0 mm guns (6x2 guns), 22.26lbs / 10.10kg shells, 1939 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, all raised mounts - superfiring
20 - 1.46" / 37.0 mm guns (10x2 guns), 1.55lbs / 0.70kg shells, 1939 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
12 - 0.54" / 13.7 mm guns in single mounts, 0.08lbs / 0.04kg shells, 1939 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 299 lbs / 136 kg
Shells per gun, main battery: 450

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.00" / 76 mm 465.00 ft / 141.73 m 10.00 ft / 3.05 m
Ends: Unarmoured
Upper: 1.00" / 25 mm 465.00 ft / 141.73 m 14.00 ft / 4.27 m
Main Belt covers 102 % of normal length

- Torpedo Bulkhead:
2.00" / 51 mm 465.00 ft / 141.73 m 22.00 ft / 6.71 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.50" / 38 mm 0.50" / 13 mm 1.50" / 38 mm
2nd: 0.50" / 13 mm - -

- Armour deck: 2.38" / 60 mm, Conning tower: 3.00" / 76 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 102,000 shp / 76,092 Kw = 31.50 kts
Range 10,000nm at 12.00 kts
Bunker at max displacement = 2,034 tons

Complement:
848 - 1,103

Cost:
£6.224 million / $24.896 million

Distribution of weights at normal displacement:
Armament: 37 tons, 0.2 %
Armour: 3,468 tons, 17.1 %
- Belts: 861 tons, 4.3 %
- Torpedo bulkhead: 757 tons, 3.7 %
- Armament: 27 tons, 0.1 %
- Armour Deck: 1,775 tons, 8.8 %
- Conning Tower: 48 tons, 0.2 %
Machinery: 2,760 tons, 13.6 %
Hull, fittings & equipment: 7,363 tons, 36.4 %
Fuel, ammunition & stores: 1,615 tons, 8.0 %
Miscellaneous weights: 5,000 tons, 24.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
30,066 lbs / 13,638 Kg = 1,350.9 x 3.5 " / 90 mm shells or 4.9 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 4.0 ft / 1.2 m
Roll period: 17.1 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.03
Seaboat quality (Average = 1.00): 1.21

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.510
Length to Beam Ratio: 8.57 : 1
'Natural speed' for length: 30.60 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 5.00 ft / 1.52 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 35.00 ft / 10.67 m
- Forecastle (20 %): 20.00 ft / 6.10 m
- Mid (50 %): 20.00 ft / 6.10 m
- Quarterdeck (15 %): 20.00 ft / 6.10 m
- Stern: 20.00 ft / 6.10 m
- Average freeboard: 21.20 ft / 6.46 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 97.3 %
- Above water (accommodation/working, high = better): 181.1 %
Waterplane Area: 40,318 Square feet or 3,746 Square metres
Displacement factor (Displacement / loading): 142 %
Structure weight / hull surface area: 129 lbs/sq ft or 627 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.19
- Longitudinal: 1.27
- Overall: 1.20
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Excellent job, Wes. I'm really liking the design, although I want to see what Canis and Red can come up with.

Something like this? Airgroup of 72 with two double hangars with extensive armouring. Excellent seakeeping.

Portaerei laid down 1939

Displacement:
19,449 t light; 20,034 t standard; 22,226 t normal; 23,979 t full load

Dimensions: Length overall / water x beam x draught
750.57 ft / 721.78 ft x 87.60 ft x 24.61 ft (normal load)
228.77 m / 220.00 m x 26.70 m x 7.50 m

Armament:
24 - 3.54" / 90.0 mm guns (12x2 guns), 22.24lbs / 10.09kg shells, 1939 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread
32 - 1.46" / 37.0 mm guns (8x4 guns), 1.83lbs / 0.83kg shells, 1939 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 592 lbs / 269 kg
Shells per gun, main battery: 400

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.76" / 70 mm 426.51 ft / 130.00 m 9.84 ft / 3.00 m
Ends: Unarmoured
Upper: 1.57" / 40 mm 492.13 ft / 150.00 m 32.81 ft / 10.00 m
Main Belt covers 91 % of normal length

- Torpedo Bulkhead:
1.57" / 40 mm 426.51 ft / 130.00 m 26.25 ft / 8.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm 0.79" / 20 mm -
2nd: 0.39" / 10 mm - -

- Armour deck: 2.36" / 60 mm, Conning tower: 2.76" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 100,000 shp / 74,600 Kw = 30.96 kts
Range 12,000nm at 15.00 kts
Bunker at max displacement = 3,945 tons

Complement:
909 - 1,183

Cost:
£6.521 million / $26.083 million

Distribution of weights at normal displacement:
Armament: 73 tons, 0.3 %
Armour: 4,232 tons, 19.0 %
- Belts: 1,566 tons, 7.0 %
- Torpedo bulkhead: 652 tons, 2.9 %
- Armament: 52 tons, 0.2 %
- Armour Deck: 1,914 tons, 8.6 %
- Conning Tower: 47 tons, 0.2 %
Machinery: 2,706 tons, 12.2 %
Hull, fittings & equipment: 7,239 tons, 32.6 %
Fuel, ammunition & stores: 2,777 tons, 12.5 %
Miscellaneous weights: 5,200 tons, 23.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
41,270 lbs / 18,720 Kg = 1,855.4 x 3.5 " / 90 mm shells or 6.3 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 5.3 ft / 1.6 m
Roll period: 16.0 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.03
Seaboat quality (Average = 1.00): 1.58

Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.500
Length to Beam Ratio: 8.24 : 1
'Natural speed' for length: 31.15 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 45
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 9.84 ft / 3.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 32.81 ft / 10.00 m
- Forecastle (25 %): 32.81 ft / 10.00 m (24.61 ft / 7.50 m aft of break)
- Mid (50 %): 24.61 ft / 7.50 m
- Quarterdeck (20 %): 24.61 ft / 7.50 m
- Stern: 24.61 ft / 7.50 m
- Average freeboard: 26.66 ft / 8.13 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 89.1 %
- Above water (accommodation/working, high = better): 225.9 %
Waterplane Area: 43,808 Square feet or 4,070 Square metres
Displacement factor (Displacement / loading): 144 %
Structure weight / hull surface area: 113 lbs/sq ft or 549 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.40
- Overall: 1.01
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Will that fit in a Type 3? Wes said the bow had to be accounted for. I didn't know that myself, I always thought it was the waterline length. Anyway, armour's not all that important for a carrier in my eyes, however a large air group for a given displacement is important so if you can exchange armour for air group it would be more than acceptable.

We had a discussion about how much of the ships hull could pertrude past the specified length of X slip, I just don't recall exactly how much we agreed on.

IIRC we also felt that part of the bow/stern could be welded on durring the fitting out of the ship.

That said I simply stick to just under the slips length as a matter of practice, if there are limited slips that is.

From Australia:


Export, Australia Aircraft carrier laid down 1939

Displacement:
16,921 t light; 17,387 t standard; 19,931 t normal; 21,967 t full load

Dimensions: Length overall / water x beam x draught
733.82 ft / 715.00 ft x 79.00 ft x 24.70 ft (normal load)
223.67 m / 217.93 m x 24.08 m x 7.53 m

Armament:
8 - 3.54" / 90.0 mm guns (4x2 guns), 22.24lbs / 10.09kg shells, 1939 Model
Dual purpose guns in deck mounts
on side, all amidships, 2 raised mounts - superfiring
12 - 3.54" / 90.0 mm guns in single mounts, 22.24lbs / 10.09kg shells, 1939 Model
Dual purpose guns in deck mounts
on side ends, evenly spread
32 - 1.46" / 37.0 mm guns (8x4 guns), 1.55lbs / 0.70kg shells, 1939 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 494 lbs / 224 kg
Shells per gun, main battery: 200

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.00" / 51 mm 500.00 ft / 152.40 m 9.00 ft / 2.74 m
Ends: Unarmoured
Main Belt covers 108 % of normal length

- Torpedo Bulkhead:
0.50" / 13 mm 500.00 ft / 152.40 m 20.00 ft / 6.10 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - -

- Armour deck: 2.00" / 51 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 105,936 shp / 79,028 Kw = 32.00 kts
Range 15,000nm at 15.00 kts
Bunker at max displacement = 4,580 tons

Complement:
838 - 1,090

Cost:
£6.082 million / $24.330 million

Distribution of weights at normal displacement:
Armament: 62 tons, 0.3 %
Armour: 2,019 tons, 10.1 %
- Belts: 373 tons, 1.9 %
- Torpedo bulkhead: 185 tons, 0.9 %
- Armament: 13 tons, 0.1 %
- Armour Deck: 1,448 tons, 7.3 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 2,866 tons, 14.4 %
Hull, fittings & equipment: 6,474 tons, 32.5 %
Fuel, ammunition & stores: 3,010 tons, 15.1 %
Miscellaneous weights: 5,500 tons, 27.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
31,136 lbs / 14,123 Kg = 1,399.8 x 3.5 " / 90 mm shells or 3.9 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 4.1 ft / 1.2 m
Roll period: 16.5 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.03
Seaboat quality (Average = 1.00): 1.50

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.500
Length to Beam Ratio: 9.05 : 1
'Natural speed' for length: 30.76 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 47
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 2.50 ft / 0.76 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 35.00 ft / 10.67 m
- Forecastle (25 %): 25.00 ft / 7.62 m
- Mid (50 %): 25.00 ft / 7.62 m
- Quarterdeck (20 %): 25.00 ft / 7.62 m
- Stern: 24.00 ft / 7.32 m
- Average freeboard: 25.90 ft / 7.89 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 106.9 %
- Above water (accommodation/working, high = better): 222.4 %
Waterplane Area: 39,137 Square feet or 3,636 Square metres
Displacement factor (Displacement / loading): 145 %
Structure weight / hull surface area: 108 lbs/sq ft or 527 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.38
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather