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Monday, March 10th 2008, 5:27am

Cruzeros de Batalla (Battlecruisers)



Pancho Villa
Emiliano Zapata


Villa class, Mexico Heavy Cruiser laid down 1935

Displacement:
13,851 t light; 14,635 t standard; 17,031 t normal; 18,949 t full load

Dimensions: Length overall / water x beam x draught
699.79 ft / 670.00 ft x 67.00 ft x 27.10 ft (normal load)
213.30 m / 204.22 m x 20.42 m x 8.26 m

Armament:
9 - 10.00" / 254 mm guns (3x3 guns), 500.00lbs / 226.80kg shells, 1935 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
2 - 5.00" / 127 mm guns (1x2 guns), 62.50lbs / 28.35kg shells, 1935 Model
Dual purpose guns in a deck mount with hoist
on centreline aft, all raised guns - superfiring
8 - 5.00" / 127 mm guns (4x2 guns), 62.50lbs / 28.35kg shells, 1935 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread
12 - 1.85" / 47.0 mm guns (6x2 guns), 3.17lbs / 1.44kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
16 - 0.50" / 12.7 mm guns (8x2 guns), 0.06lbs / 0.03kg shells, 1935 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 5,164 lbs / 2,342 kg
Shells per gun, main battery: 150
6 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 7.00" / 178 mm 370.00 ft / 112.78 m 10.00 ft / 3.05 m
Ends: Unarmoured
Main Belt covers 85 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 7.00" / 178 mm 3.00" / 76 mm 7.00" / 178 mm
2nd: 1.00" / 25 mm - -
3rd: 1.00" / 25 mm - -

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

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 97,344 shp / 72,618 Kw = 32.00 kts
Range 15,000nm at 15.00 kts
Bunker at max displacement = 4,314 tons

Complement:
745 - 969

Cost:
£7.199 million / $28.798 million

Distribution of weights at normal displacement:
Armament: 646 tons, 3.8 %
Armour: 3,676 tons, 21.6 %
- Belts: 1,106 tons, 6.5 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 817 tons, 4.8 %
- Armour Deck: 1,710 tons, 10.0 %
- Conning Tower: 43 tons, 0.3 %
Machinery: 2,765 tons, 16.2 %
Hull, fittings & equipment: 6,645 tons, 39.0 %
Fuel, ammunition & stores: 3,180 tons, 18.7 %
Miscellaneous weights: 120 tons, 0.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
21,404 lbs / 9,709 Kg = 42.8 x 10.0 " / 254 mm shells or 2.3 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 3.4 ft / 1.0 m
Roll period: 15.3 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.78
Seaboat quality (Average = 1.00): 1.05

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.490
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 29.57 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 47
Bow angle (Positive = bow angles forward): 50.00 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 %): 19.00 ft / 5.79 m
- Mid (40 %): 19.00 ft / 5.79 m
- Quarterdeck (15 %): 19.00 ft / 5.79 m
- Stern: 19.00 ft / 5.79 m
- Average freeboard: 19.48 ft / 5.94 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 83.3 %
- Above water (accommodation/working, high = better): 135.9 %
Waterplane Area: 30,816 Square feet or 2,863 Square metres
Displacement factor (Displacement / loading): 118 %
Structure weight / hull surface area: 136 lbs/sq ft or 662 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.37
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent

This post has been edited 1 times, last edit by "Desertfox" (Feb 15th 2012, 5:19am)


2

Wednesday, July 21st 2010, 2:28am


Pic was a quick and dirty draft using a couple of Brock's drawings, which are based on drawings by Wes. It is not accurate.


Chapultepec, Mexico Battleship laid down 1937

Displacement:
28,734 t light; 30,175 t standard; 33,520 t normal; 36,196 t full load

Dimensions: Length overall / water x beam x draught
710.00 ft / 710.00 ft x 90.00 ft x 34.00 ft (normal load)
216.41 m / 216.41 m x 27.43 m x 10.36 m

Armament:
6 - 16.00" / 406 mm guns (2x3 guns), 2,048.00lbs / 928.96kg shells, 1937 Model
Breech loading guns in turrets (on barbettes)
on centreline, all forward, 1 raised mount - superfiring
4 - 5.00" / 127 mm guns (2x2 guns), 62.50lbs / 28.35kg shells, 1937 Model
Breech loading guns in deck mounts with hoists
on centreline, all aft, 1 raised mount - superfiring
16 - 5.00" / 127 mm guns (8x2 guns), 62.50lbs / 28.35kg shells, 1937 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread, 4 raised mounts
16 - 1.85" / 47.0 mm guns (8x2 guns), 3.17lbs / 1.44kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 13,589 lbs / 6,164 kg
Shells per gun, main battery: 100

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 11.0" / 279 mm 420.00 ft / 128.02 m 15.00 ft / 4.57 m
Ends: Unarmoured
Main Belt covers 91 % of normal length

- Torpedo Bulkhead:
1.50" / 38 mm 420.00 ft / 128.02 m 20.00 ft / 6.10 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 11.0" / 279 mm 7.00" / 178 mm 11.0" / 279 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

- Armour deck: 5.00" / 127 mm, Conning tower: 11.00" / 279 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 115,740 shp / 86,342 Kw = 30.00 kts
Range 14,400nm at 15.00 kts
Bunker at max displacement = 6,021 tons

Complement:
1,238 - 1,610

Cost:
£15.718 million / $62.872 million

Distribution of weights at normal displacement:
Armament: 1,699 tons, 5.1 %
Armour: 10,128 tons, 30.2 %
- Belts: 3,009 tons, 9.0 %
- Torpedo bulkhead: 466 tons, 1.4 %
- Armament: 2,152 tons, 6.4 %
- Armour Deck: 4,254 tons, 12.7 %
- Conning Tower: 246 tons, 0.7 %
Machinery: 3,208 tons, 9.6 %
Hull, fittings & equipment: 13,530 tons, 40.4 %
Fuel, ammunition & stores: 4,786 tons, 14.3 %
Miscellaneous weights: 170 tons, 0.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
47,189 lbs / 21,404 Kg = 23.0 x 16.0 " / 406 mm shells or 6.2 torpedoes
Stability (Unstable if below 1.00): 1.07
Metacentric height 4.8 ft / 1.5 m
Roll period: 17.2 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.92
Seaboat quality (Average = 1.00): 1.26

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.540
Length to Beam Ratio: 7.89 : 1
'Natural speed' for length: 30.85 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 40
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: 33.00 ft / 10.06 m
- Forecastle (50 %): 27.00 ft / 8.23 m
- Mid (50 %): 27.00 ft / 8.23 m
- Quarterdeck (20 %): 20.00 ft / 6.10 m
- Stern: 20.00 ft / 6.10 m
- Average freeboard: 25.75 ft / 7.85 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 90.2 %
- Above water (accommodation/working, high = better): 166.3 %
Waterplane Area: 45,985 Square feet or 4,272 Square metres
Displacement factor (Displacement / loading): 111 %
Structure weight / hull surface area: 192 lbs/sq ft or 936 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.92
- Longitudinal: 2.04
- 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

3

Tuesday, February 7th 2012, 9:57pm



Iztaccíhuatl

Samal class, Mexican (ex-Filipino) battlecruiser, laid down 1925 (bought 1942)

Displacement: 23,120 t light; 24,355 t standard; 26,422 t normal; 27,969 t full load

Dimensions: Length overall / water x beam x draught

752.68 ft / 750.00 ft x 80.00 ft (Bulges 91.20 ft) x 26.00 ft (normal load) [229.42 m / 228.60 m x 24.38 m (Bulges 27.80 m) x 7.92 m]

Armament:

6 - 12.60" / 320 mm guns (3x2 guns), 1,050.00lbs / 476.27kg shells, 1926 Model Breech loading guns in turrets (on barbettes) on centreline ends, majority forward, 1 raised mount - superfiring
10 - 6.10" / 155 mm guns (5x2 guns), 120.00lbs / 54.43kg shells, 1926 Model Breech loading guns in turrets (on barbettes) on side, all amidships, 1 raised mount - superfiring
18 - 3.94" / 100 mm guns (6x2, 6x1 guns), 32.00lbs / 14.51kg shells, 1923 Model Dual purpose guns in deck mounts with hoists on side, evenly spread, 8 raised mounts - 2 superfiring
4 - 2.24" / 57.0 mm guns in single mounts, 6.00lbs / 2.72kg shells, 1923 Model Dual purpose guns in deck mounts on side, all amidships, all raised mounts
8 - 1.57" / 40.0 mm guns in single mounts, 2.00lbs / 0.91kg shells, 1918 Model Anti-aircraft guns in deck mounts on side, evenly spread, all raised mounts
Weight of broadside 8,116 lbs / 3,681 kg
Shells per gun, main battery: 150

8 - 21.0" / 533.5 mm above water torpedoes (provision for 24" / 610 mm)

Armour:

Belts: Width (max) Length (avg) Height (avg)
Main: 8.27" / 210 mm 564.00 ft / 171.91 m 11.46 ft / 3.49 m
Ends: Unarmoured
Upper: 1.57" / 40 mm 564.00 ft / 171.91 m 14.00 ft / 4.27 m
Main Belt covers 116 % of normal length

Torpedo Bulkhead and Bulges: 1.18" / 30 mm 564.00 ft / 171.91 m 23.33 ft / 7.11 m

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 8.27" / 210 mm 5.12" / 130 mm 8.27" / 210 mm
2nd: 2.95" / 75 mm 1.57" / 40 mm 2.95" / 75 mm
3rd: 1.18" / 30 mm 0.54" / 14 mm 0.59" / 15 mm
4th: 0.98" / 25 mm - -
5th: 0.79" / 20 mm - -

Armour deck: 3.15" / 80 mm, Conning tower: 5.12" / 130 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 4 shafts, 140,750 shp / 105,000 Kw = 31.73 kts
Range 13,500nm at 12.00 kts (Bunkerage = 3,683 tons)

Complement: 67 officers and 1,125 men

Cost: £7.396 million / $29.584 million

Distribution of weights at normal displacement:

Armament: 965 tons, 3.7 %
Armour: 7,141 tons, 27.0 %
- Belts: 2,697 tons, 10.2 %
- Torpedo bulkhead: 575 tons, 2.2 %
- Armament: 1,482 tons, 5.6 %
- Armour Deck: 2,289 tons, 8.7 %
- Conning Tower: 98 tons, 0.4 %
Machinery: 4,570 tons, 17.3 %
Hull, fittings & equipment: 10,344 tons, 39.1 %
Fuel, ammunition & stores: 3,302 tons, 12.5 %
Miscellaneous weights: 100 tons, 0.4 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):
19,970 lbs / 9,058 Kg = 19.1 x 12.6 " / 320 mm shells or 2.8 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 5.3 ft / 1.6 m
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.56
Seaboat quality (Average = 1.00): 1.11

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.520
Length to Beam Ratio: 8.22: 1
'Natural speed' for length: 27.39 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 63
Bow angle (Positive = bow angles forward): 5.00 degrees
Stern overhang: -2.00 ft / -0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 30.60 ft / 9.33 m
- Forecastle (20 %): 22.50 ft / 6.86 m
- Mid (50 %): 21.50 ft / 6.55 m
- Quarterdeck (15 %): 21.50 ft / 6.55 m
- Stern: 21.50 ft / 6.55 m
- Average freeboard: 22.50 ft / 6.86 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 115.6 %
- Above water (accommodation/working, high = better): 138.1 %
Waterplane Area: 39,280 Square feet or 3,649 Square metres
Displacement factor (Displacement / loading): 110 %
Structure weight / hull surface area: 163 lbs/sq ft or 798 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.11
- 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

Armour belt is 210mm + 40mm decapping plate

Misc. weight:
50t...catapult+aircraft
25t...flag accommodations
25t...acclimatization

Trials @ 24,000t, 20% overload: 33.67knt

This post has been edited 1 times, last edit by "Desertfox" (Feb 15th 2012, 5:23am)


4

Tuesday, February 7th 2012, 9:58pm



Popocatépetl

Bohol class, Mexican (ex-Filipino) Battlecruiser laid down 1926 (bought 1942)

Displacement: 23,452 t light; 24,670 t standard; 26,930 t normal; 28,738 t full load

Dimensions: Length overall / water x beam x draught

752.63 ft / 750.00 ft x 80.00 ft (Bulges 91.20 ft) x 26.50 ft (normal load) [229.40 m / 228.60 m x 24.38 m (Bulges 27.80 m) x 8.08 m]

Armament:

6 - 12.60" / 320 mm guns (3x2 guns), 1,050.00lbs / 476.27kg shells, 1926 Model Breech loading guns in turrets (on barbettes) on centreline ends, majority forward, 1 raised mount - superfiring
10 - 6.10" / 155 mm guns (5x2 guns), 120.00lbs / 54.43kg shells, 1926 Model Breech loading guns in turrets (on barbettes) on side, all amidships, 1 raised mount - superfiring
24 - 2.95" / 75.0 mm guns (12x2 guns), 13.00lbs / 5.90kg shells, 1926 Model Dual purpose guns in deck mounts with hoists on side, evenly spread, 8 raised mounts - 2 superfiring
8 - 1.38" / 35.0 mm guns (2x2, 4x1 guns), 1.32lbs / 0.60kg shells, 1929 Model Anti-aircraft guns in deck mounts on side, evenly spread, all raised mounts
8 - 1.38" / 35.0 mm guns (4x2 guns), 1.32lbs / 0.60kg shells, 1929 Model Breech loading guns in deck mounts on side, all amidships, all raised mounts
Weight of broadside 7,833 lbs / 3,553 kg
Shells per gun, main battery: 150

8 - 21.0" above water torpedoes (provision for 24" / 610mm)

Armour:

Belts: Width (max) Length (avg) Height (avg)
Main: 8.27" / 210 mm 534.78 ft / 163.00 m 11.48 ft / 3.50 m
Ends: Unarmoured
Upper: 1.57" / 40 mm 534.78 ft / 163.00 m 13.12 ft / 4.00 m
Main Belt covers 110 % of normal length

Torpedo Bulkhead and Bulges: 1.18" / 30 mm 534.78 ft / 163.00 m 23.29 ft / 7.10 m

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 8.27" / 210 mm 5.12" / 130 mm 8.27" / 210 mm
2nd: 2.95" / 75 mm 1.57" / 40 mm 2.95" / 75 mm
3rd: 1.18" / 30 mm - -
4th: 0.79" / 20 mm - -
5th: 0.59" / 15 mm - -

Armour deck: 3.94" / 100 mm, Conning tower: 5.12" / 130 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 4 shafts, 140,929 shp / 105,133 Kw = 31.66 kts
Range 14,850nm at 12.00 kts (Bunkerage = 4,069 tons)

Complement: 1,050 - 1,366

Cost: £7.725 million / $30.901 million

Distribution of weights at normal displacement:

Armament: 933 tons, 3.5 %
Armour: 7,615 tons, 28.3 %
- Belts: 2,552 tons, 9.5 %
- Torpedo bulkhead: 544 tons, 2.0 %
- Armament: 1,453 tons, 5.4 %
- Armour Deck: 2,966 tons, 11.0 %
- Conning Tower: 99 tons, 0.4 %
Machinery: 4,511 tons, 16.8 %
Hull, fittings & equipment: 10,292 tons, 38.2 %
Fuel, ammunition & stores: 3,478 tons, 12.9 %
Miscellaneous weights: 100 tons, 0.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
22,576 lbs / 10,240 Kg = 22.6 x 12.6 " / 320 mm shells or 3.1 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 4.4 ft / 1.3 m
Roll period: 18.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.52
Seaboat quality (Average = 1.00): 1.11

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.520
Length to Beam Ratio: 8.22: 1
'Natural speed' for length: 27.39 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 63
Bow angle (Positive = bow angles forward): 5.00 degrees
Stern overhang: -2.00 ft / -0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 30.10 ft / 9.17 m
- Forecastle (20 %): 22.00 ft / 6.71 m
- Mid (50 %): 21.00 ft / 6.40 m
- Quarterdeck (15 %): 21.00 ft / 6.40 m
- Stern: 21.00 ft / 6.40 m
- Average freeboard: 22.00 ft / 6.70 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 109.7 %
- Above water (accommodation/working, high = better): 138.0 %
Waterplane Area: 40,718 Square feet or 3,783 Square metres
Displacement factor (Displacement / loading): 111 %
Structure weight / hull surface area: 161 lbs/sq ft or 787 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.10
- 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

Armour belt is 210mm + 40mm decapping plate

Misc. weight:
75t...catapult+2 aircraft
25t...acclimatization

This post has been edited 1 times, last edit by "Desertfox" (Feb 7th 2012, 10:04pm)