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1

Tuesday, March 22nd 2016, 1:25pm

Refitted Tai-Pei

Tai-pei, China Battle Cruiser laid down 1925; refitted 1946

Displacement:
28,784 t light; 30,044 t standard; 32,573 t normal; 34,596 t full load

Dimensions:
Length overall / water x beam x draught
817.01 ft / 800.00 ft x 80.00 ft (Bulges 91.00 ft) x 29.00 ft (normal load)
249.03 m / 243.84 m x 24.38 m (Bulges 27.74 m) x 8.84 m

Armament:
9 - 12.00" / 305 mm guns (3x3 guns), 925.00lbs / 419.57kg shells, 1925 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
16 - 4.13" / 105 mm guns (8x2 guns), 35.32lbs / 16.02kg shells, 1946 Model
Dual purpose guns in turrets (on barbettes)
on side, all amidships, 4 raised mounts - superfiring
28 - 1.46" / 37.0 mm guns (14x2 guns), 1.55lbs / 0.70kg shells, 1946 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread
60 - 0.79" / 20.0 mm guns (30x2 guns), 0.24lbs / 0.11kg shells, 1946 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 10 raised mounts
Weight of broadside 8,948 lbs / 4,059 kg
Shells per gun, main battery: 120


Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 10.0" / 254 mm 635.50 ft / 193.70 m 10.90 ft / 3.32 m
Ends: Unarmoured
Main Belt covers 122 % of normal length

- Torpedo Bulkhead and Bulges:
1.00" / 25 mm 635.50 ft / 193.70 m 26.44 ft / 8.06 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 11.0" / 279 mm 7.00" / 178 mm 8.00" / 203 mm
2nd: 2.00" / 51 mm 1.00" / 25 mm 2.00" / 51 mm
3rd: 1.00" / 25 mm - -
4th: 1.00" / 25 mm - -

- Armour deck: 4.00" / 102 mm, Conning tower: 12.00" / 305 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 205,167 shp / 153,054 Kw = 34.00 kts
Range 9,015nm at 15.00 kts
Bunker at max displacement = 4,551 tons

Complement:
1,211 - 1,575

Cost:
£9.235 million / $36.941 million

Distribution of weights at normal displacement:
Armament: 1,050 tons, 3.2 %
Armour: 8,742 tons, 26.8 %
- Belts: 2,804 tons, 8.6 %
- Torpedo bulkhead: 622 tons, 1.9 %
- Armament: 1,778 tons, 5.5 %
- Armour Deck: 3,274 tons, 10.1 %
- Conning Tower: 264 tons, 0.8 %
Machinery: 6,661 tons, 20.5 %
Hull, fittings & equipment: 12,231 tons, 37.5 %
Fuel, ammunition & stores: 3,789 tons, 11.6 %
Miscellaneous weights: 100 tons, 0.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
34,609 lbs / 15,698 Kg = 40.1 x 12.0 " / 305 mm shells or 4.4 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 3.9 ft / 1.2 m
Roll period: 19.3 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.66
Seaboat quality (Average = 1.00): 1.04

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.540
Length to Beam Ratio: 8.79 : 1
'Natural speed' for length: 28.28 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 67
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: 33.00 ft / 10.06 m
- Forecastle (20 %): 24.00 ft / 7.32 m
- Mid (50 %): 23.00 ft / 7.01 m
- Quarterdeck (15 %): 23.00 ft / 7.01 m
- Stern: 23.00 ft / 7.01 m
- Average freeboard: 24.07 ft / 7.34 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 122.2 %
- Above water (accommodation/working, high = better): 143.5 %
Waterplane Area: 44,249 Square feet or 4,111 Square metres
Displacement factor (Displacement / loading): 107 %
Structure weight / hull surface area: 170 lbs/sq ft or 828 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.12
- Overall: 1.00
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

Refit (marked in bold) 25%:
- changed to 37mm AA's and additional added
- changed to 20mm AA's and additional added
- Torpedos removed (simmed in the orignal as above water)
- Life extension refit
- no modification of bunkerage and shell magazin

Refit costs:
7196 tons

Refit duration:
10 month

2

Tuesday, March 22nd 2016, 4:45pm

Looking around a bit, I forgot that the 105mm mount is incorrect. What I mentioned with the Sinyo refit in the Japanese ships thread also applies to the other ships that were built for Chosen and Formosa back then:

Quoted

While digging up the sim I had noticed that I had originally simmed the 105mm and 75mm as being in turrets on barbettes which is actually an error due to the change from springstyle to springsharp which I kept on using. They should have been in mounts with hoists.