WesWorld

Due to the recent incident I have decided to rebuild Brisbane. How does this look?

HMAS Brisbane, Australia Light Cruiser laid down 1912 (Engine 1929)

Displacement:
5,486 t light; 5,716 t standard; 6,120 t normal; 6,443 t full load

Dimensions: Length overall / water x beam x draught
450.00 ft / 450.00 ft x 50.00 ft x 17.00 ft (normal load)
137.16 m / 137.16 m x 15.24 m x 5.18 m

Armament:
3 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1912 Model
Breech loading guns in deck mounts
on centreline ends, majority forward
6 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1912 Model
Breech loading guns in deck mounts
on side, evenly spread
4 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1912 Model
Breech loading guns in deck mounts
on side, evenly spread
12 - 1.57" / 40.0 mm guns (3x4 guns), 1.95lbs / 0.88kg shells, 1912 Model
Breech loading guns in deck mounts
on centreline, evenly spread
20 - 0.79" / 20.0 mm guns (10x2 guns), 0.24lbs / 0.11kg shells, 1912 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 1,128 lbs / 512 kg
Shells per gun, main battery: 150
12 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.00" / 76 mm 300.00 ft / 91.44 m 12.00 ft / 3.66 m
Ends: 1.50" / 38 mm 130.00 ft / 39.62 m 12.00 ft / 3.66 m
20.00 ft / 6.10 m Unarmoured ends
Main Belt covers 103 % of normal length
Main belt does not fully cover magazines and engineering spaces

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.00" / 76 mm - -
2nd: 3.00" / 76 mm - -
3rd: 1.00" / 25 mm - -
4th: 0.50" / 13 mm - -
5th: 0.50" / 13 mm - -

- Armour deck: 2.00" / 51 mm, Conning tower: 5.00" / 127 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 65,015 shp / 48,501 Kw = 31.00 kts
Range 4,000nm at 15.00 kts
Bunker at max displacement = 727 tons

Complement:
345 - 449

Cost:
£0.590 million / $2.360 million

Distribution of weights at normal displacement:
Armament: 141 tons, 2.3 %
Armour: 1,271 tons, 20.8 %
- Belts: 540 tons, 8.8 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 108 tons, 1.8 %
- Armour Deck: 586 tons, 9.6 %
- Conning Tower: 36 tons, 0.6 %
Machinery: 1,997 tons, 32.6 %
Hull, fittings & equipment: 1,978 tons, 32.3 %
Fuel, ammunition & stores: 634 tons, 10.4 %
Miscellaneous weights: 100 tons, 1.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
5,012 lbs / 2,273 Kg = 46.4 x 6.0 " / 152 mm shells or 0.9 torpedoes
Stability (Unstable if below 1.00): 1.27
Metacentric height 2.7 ft / 0.8 m
Roll period: 12.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.34
Seaboat quality (Average = 1.00): 1.32

Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.560
Length to Beam Ratio: 9.00 : 1
'Natural speed' for length: 21.21 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 53
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.00 ft / 7.62 m
- Forecastle (20 %): 24.00 ft / 7.32 m
- Mid (50 %): 24.00 ft / 7.32 m
- Quarterdeck (30 %): 16.00 ft / 4.88 m (24.00 ft / 7.32 m before break)
- Stern: 16.00 ft / 4.88 m
- Average freeboard: 21.68 ft / 6.61 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 125.6 %
- Above water (accommodation/working, high = better): 132.8 %
Waterplane Area: 15,851 Square feet or 1,473 Square metres
Displacement factor (Displacement / loading): 94 %
Structure weight / hull surface area: 66 lbs/sq ft or 324 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.73
- Longitudinal: 2.66
- Overall: 0.83
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

No comments???

Alright, alright.

-The belt's too short to fit the new powerplant.

-Why not go a bit further and replace the singles on the centreline with twin deck mounts? Then yank out the six singles on the beams. Same broadside, three less guns taking up space.

-Do you need 100 t of miscellaneous space, and if so...for what?

Sorry the refresh rates abit fast on the new posts so I kinda missed this one.

I have to agree with Rocky, install some twin mounts to reduce the number of turrets and free up some deck space for that 100 Misc. tons (for I'm assuming a floatplane and catipult).

Or just repair her enough for use in the short term, then send her to the breakers when her replacement time is up. That's probably what I would do, given the 1912 build date.

Quoted

-The belt's too short to fit the new powerplant.

Not much I can do about it. It is covered by the end belt.

Quoted

-Why not go a bit further and replace the singles on the centreline with twin deck mounts? Then yank out the six singles on the beams. Same broadside, three less guns taking up space.

I rather keep her as she is. She'll be the only Light Cruiser capable of keeping up with Tiger. So Id rather retain the ability to target two separate ships at the same time. Plus singles have faster ROF than twins.

Quoted

-Do you need 100 t of miscellaneous space, and if so...for what?

They're on the regular Chatmans, dont know what for. I just left it as it is. I might remove it and replace it with extra bunkerage.

Quoted

Or just repair her enough for use in the short term, then send her to the breakers when her replacement time is up. That's probably what I would do, given the 1912 build date.

She'll be the only Light Cruiser capable of keeping up with Tiger for some time. I cant scrap her. And if I get PR Ill need all the LC I can get my hands on.

Not worth the money, she is elligble for replacement and a broadside gun design/layout which makes for limited choices for rebuilding.

If you were still considered part of GB then I'd suggest an exchange for a newer faster cruiser but if Australia claims an independent path then I think that wouldn't be possible.

In reality Brisbane was replaced with an improved Leander.

Cheers,

Yeah...scrap her. You'll get about 800 t of materials, and save the actual ~2700 t cost of rebuilding her. That's about half the cost of a brand new and far superior cruiser to escort Tiger.

I have decided on a less extensive rebuild, essentialy a life extension one.

HMAS Brisbane, Australia Light Cruiser laid down 1912 (Engine 1929)

Displacement:
4,793 t light; 5,058 t standard; 6,120 t normal; 6,970 t full load

Dimensions: Length overall / water x beam x draught
450.00 ft / 450.00 ft x 50.00 ft x 17.00 ft (normal load)
137.16 m / 137.16 m x 15.24 m x 5.18 m

Armament:
3 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1929 Model
Breech loading guns in deck mounts
on centreline ends, majority forward
6 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1929 Model
Breech loading guns in deck mounts
on side, evenly spread
4 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1929 Model
Dual purpose guns in deck mounts
on side, evenly spread
12 - 1.57" / 40.0 mm guns (3x4 guns), 1.95lbs / 0.88kg shells, 1929 Model
Anti-aircraft guns in deck mounts
on centreline, evenly spread
10 - 0.79" / 20.0 mm guns (5x2 guns), 0.24lbs / 0.11kg shells, 1929 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 1,126 lbs / 511 kg
Shells per gun, main battery: 200
8 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.00" / 76 mm 300.00 ft / 91.44 m 12.00 ft / 3.66 m
Ends: Unarmoured
Main Belt covers 103 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.00" / 76 mm - -
2nd: 3.00" / 76 mm - -
3rd: 1.00" / 25 mm - -
4th: 0.50" / 13 mm - -
5th: 0.50" / 13 mm - -

- Armour deck: 2.00" / 51 mm, Conning tower: 5.00" / 127 mm

Machinery:
Coal fired boilers, steam turbines,
Geared drive, 4 shafts, 36,633 shp / 27,328 Kw = 27.00 kts
Range 7,900nm at 15.00 kts
Bunker at max displacement = 1,912 tons (100% coal)

Complement:
345 - 449

Cost:
£0.459 million / $1.837 million

Distribution of weights at normal displacement:
Armament: 141 tons, 2.3 %
Armour: 1,181 tons, 19.3 %
- Belts: 453 tons, 7.4 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 105 tons, 1.7 %
- Armour Deck: 586 tons, 9.6 %
- Conning Tower: 36 tons, 0.6 %
Machinery: 1,238 tons, 20.2 %
Hull, fittings & equipment: 2,084 tons, 34.0 %
Fuel, ammunition & stores: 1,327 tons, 21.7 %
Miscellaneous weights: 150 tons, 2.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
10,363 lbs / 4,700 Kg = 96.0 x 6.0 " / 152 mm shells or 1.5 torpedoes
Stability (Unstable if below 1.00): 1.38
Metacentric height 3.1 ft / 0.9 m
Roll period: 11.9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.31
Seaboat quality (Average = 1.00): 1.94

Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.560
Length to Beam Ratio: 9.00 : 1
'Natural speed' for length: 21.21 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 36
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.00 ft / 7.32 m
- Forecastle (20 %): 24.00 ft / 7.32 m
- Mid (50 %): 24.00 ft / 7.32 m
- Quarterdeck (30 %): 16.00 ft / 4.88 m (24.00 ft / 7.32 m before break)
- Stern: 16.00 ft / 4.88 m
- Average freeboard: 21.60 ft / 6.58 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 87.4 %
- Above water (accommodation/working, high = better): 158.6 %
Waterplane Area: 15,851 Square feet or 1,473 Square metres
Displacement factor (Displacement / loading): 124 %
Structure weight / hull surface area: 70 lbs/sq ft or 342 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.80
- Longitudinal: 2.89
- Overall: 0.91
Caution: Hull subject to strain in open-sea
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

Could try to use the experimental 6" turrets tried on HMS Diomede (single) and HMS Enterprise (duple). They were fairly successful.