Armored Cruisers

Talos · September 11, 2008, 12:40:39 PM

Bardai class :

Egypt Armored Cruiser laid down 1890

AC-1 Bardai, sold to Gran Colombia in 1918 (out of service)
AC-2 Jawf, sold to Gran Colombia in 1918 (out of service)

Displacement:
5,097 t light; 5,285 t standard; 6,000 t normal; 6,572 t full load

Dimensions: Length overall / water x beam x draught
340.00 ft / 340.00 ft x 50.00 ft x 21.00 ft (normal load)
103.63 m / 103.63 m x 15.24 m x 6.40 m

Armament:
2 - 8.00" / 203 mm guns in single mounts, 256.00lbs / 116.12kg shells, 1890 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
4 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1890 Model
Quick firing guns in casemate mounts
on side, all amidships
12 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1890 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 945 lbs / 429 kg
Shells per gun, main battery: 120

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.00" / 76 mm 321.00 ft / 97.84 m 8.49 ft / 2.59 m
Ends: 2.00" / 51 mm 19.00 ft / 5.79 m 8.49 ft / 2.59 m
Upper: 1.00" / 25 mm 221.00 ft / 67.36 m 8.00 ft / 2.44 m
Main Belt covers 145 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4.00" / 102 mm - 2.00" / 51 mm
2nd: 2.00" / 51 mm - -

- Armour deck: 2.00" / 51 mm, Conning tower: 6.00" / 152 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 12,664 ihp / 9,448 Kw = 20.00 kts
Range 6,000nm at 10.00 kts
Bunker at max displacement = 1,287 tons (100% coal)

Complement:
340 - 443

Cost:
£0.606 million / $2.424 million

Distribution of weights at normal displacement:
Armament: 118 tons, 2.0 %
Armour: 1,002 tons, 16.7 %
- Belts: 414 tons, 6.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 90 tons, 1.5 %
- Armour Deck: 455 tons, 7.6 %
- Conning Tower: 43 tons, 0.7 %
Machinery: 2,345 tons, 39.1 %
Hull, fittings & equipment: 1,631 tons, 27.2 %
Fuel, ammunition & stores: 903 tons, 15.1 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3,193 lbs / 1,448 Kg = 12.5 x 8.0 " / 203 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.48
Metacentric height 3.5 ft / 1.1 m
Roll period: 11.3 seconds
Steadiness - As gun platform (Average = 50 %): 67 %
- Recoil effect (Restricted arc if above 1.00): 0.21
Seaboat quality (Average = 1.00): 1.33

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.588
Length to Beam Ratio: 6.80 : 1
'Natural speed' for length: 18.44 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 20.28 ft / 6.18 m
- Forecastle (20 %): 12.91 ft / 3.93 m
- Mid (50 %): 12.91 ft / 3.93 m
- Quarterdeck (15 %): 12.91 ft / 3.93 m
- Stern: 12.91 ft / 3.93 m
- Average freeboard: 13.50 ft / 4.11 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 141.5 %
- Above water (accommodation/working, high = better): 88.9 %
Waterplane Area: 12,297 Square feet or 1,142 Square metres
Displacement factor (Displacement / loading): 90 %
Structure weight / hull surface area: 84 lbs/sq ft or 409 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.92
- Longitudinal: 2.01
- Overall: 1.00

Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Good seaboat, rides out heavy weather easily

ciders · August 05, 2009, 08:04:41 AM

Campeon Class (20 knots)

Campeon, AC-05, laid down 1898, to Egypt 1914
Paladin, AC-06, laid down 1899, to Egypt 1914

slated for replacement by 1926

Campeon, laid down 1898

Length, 134.0 m x Beam, 20.5 m x Depth, 7.7 m
11516 tonnes normal displacement (10426 tonnes standard)

Main battery: 6 x 24.0-cm (3 x 2)
Secondary battery: 8 x 14.0-cm
QF battery: 8 x 10.0-cm
Light battery: 12 x 4.7-cm

Weight of broadside: 1583 kg

4 TT, 45.7 cm (submerged)

Main belt, 20.0 cm; bow and stern, 7.0 cm
Upper belt, 10.0 cm
Armor deck, average 4.0 cm
Conning tower, 20.0 cm

Battery armor:
Main, 20.0 cm / secondary, 10.0 cm
QF, 10.0 cm / light guns, 3.0 cm shields

Maximum speed for 11997 indicated kw = 19.69 knots
Approximate cruising radius, 7000 nm / 10 knots

Typical complement: 556-723

Estimated cost, $4.301 million (£1.075 million)

Remarks:

Relative extent of belt armor, 108 percent of 'typical' coverage.

Ship has slow, easy roll; a good, steady gun platform.

Excellent seaboat; comfortable and able to fight her guns
in the heaviest weather.

Main deck secondary guns subject to being washed down
in a seaway.

Main deck QF guns subject to being washed down in a seaway.

Distribution of weights:
Percent
normal
displacement:

Armament ......................... 435 tonnes = 4 pct
Armor, total ..................... 3145 tonnes = 27 pct

Belt 1616 tonnes = 14 pct
Deck 570 tonnes = 5 pct
C.T. 87 tonnes = 1 pct
Armament 872 tonnes = 8 pct

Machinery ........................ 2593 tonnes = 23 pct
Hull and fittings; equipment ..... 3682 tonnes = 32 pct
Fuel, ammunition, stores ......... 1611 tonnes = 14 pct
Miscellaneous weights ............ 50 tonnes = 0 pct
-----
11516 tonnes = 100 pct

Estimated metacentric height, 1.2 m

Displacement summary:

Light ship: 9905 tonnes
Standard displacement: 10426 tonnes
Normal service: 11516 tonnes
Full load: 12342 tonnes

Loading submergence 1833 tonnes/metre

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.20

Shellfire needed to sink: 4408 kg = 23.0 x 24.0-cm shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 1.4
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 71 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.50

Relative quality as a seaboat: 1.58

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.54
Sharpness coefficient: 0.40
Hull speed coefficient 'M' = 5.95
'Natural speed' for length = 21.0 knots
Power going to wave formation
at top speed: 46 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 108 percent

Relative accommodation and working space: 108 percent

Displacement factor: 97 percent
(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.94
(Structure weight per square
metre of hull surface: 590 kg)

Relative longitudinal hull strength: 1.87
(for 4.90 m average freeboard;
freeboard adjustment +0.15 m)

Relative composite hull strength: 1.01

+++++++++++++++++++++++++

[Machine-readable parameters: Spring Style v. 1.2.1]

439.52 x 67.24 x 25.26; 16.07 -- Dimensions
0.54 -- Block coefficient
1898 -- Year laid down
19.69 / 7000 / 10.00; Reciprocating -- Speed / radius / cruise
50 tons -- Miscellaneous weights
++++++++++
6 x 9.45; 3; 0 -- Main battery; turrets; superfiring
:
8 x 5.51; 0 -- Secondary battery; turrets
Main deck battery
:
8 x 3.94 -- Tertiary (QF/AA) battery
Main deck battery
:
12 x 1.85 -- Fourth (light) battery
4 / 4 / 17.99 -- TT / submerged / size
++++++++++
7.87 / 2.76 / 3.94 / 0.00; 108 -- Belt armor; relative extent
1.57 / 7.87 -- Deck / CT
7.87 / 3.94 / 3.94 / 1.18 -- Battery armor

(Note: For portability, values are stored in Anglo-American units)

Darman · August 01, 2010, 01:19:26 PM

Demarce III, France protected cruiser laid down 1911 (Engine 1912)

2 vessels given to Egypt in 1917:

AC-7 Mameluke
AC-8 Furusiyya

Displacement:
5.929 t light; 6.193 t standard; 7.284 t normal; 8.157 t full load

Dimensions: Length overall / water x beam x draught
529,20 ft / 528,22 ft x 49,21 ft x 19,19 ft (normal load)
161,30 m / 161,00 m x 15,00 m x 5,85 m

Armament:
8 - 6,50" / 165 mm guns (4x2 guns), 143,30lbs / 65,00kg shells, 1911 Model
Breech loading guns in deck mounts with hoists
on centreline, evenly spread, 2 raised mounts
Aft Main mounts separated by engine room
4 - 2,76" / 70,0 mm guns in single mounts, 10,47lbs / 4,75kg shells, 1911 Model
Quick firing guns in deck mounts with hoists
on side, evenly spread
6 - 1,46" / 37,0 mm guns in single mounts, 1,55lbs / 0,70kg shells, 1911 Model
Anti-aircraft guns in deck mounts
on centreline, evenly spread, all raised mounts
Weight of broadside 1.198 lbs / 543 kg
Shells per gun, main battery: 175
8 - 21,0" / 533,4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3,00" / 76 mm 380,00 ft / 115,82 m 14,50 ft / 4,42 m
Ends: Unarmoured
Main Belt covers 111% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2,00" / 51 mm 1,00" / 25 mm 3,00" / 76 mm
2nd: 1,00" / 25 mm 1,00" / 25 mm 2,00" / 51 mm
3rd: 0,50" / 13 mm 0,50" / 13 mm -

- Armour deck: 1,50" / 38 mm, Conning tower: 5,00" / 127 mm

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 4 shafts, 42.360 shp / 31.600 Kw = 28,00 kts
Range 8.000nm at 14,00 kts
Bunker at max displacement = 1.964 tons

Complement:
393 - 512

Cost:
£0,564 million / $2,258 million

Distribution of weights at normal displacement:
Armament: 143 tons, 2,0%
Armour: 1.267 tons, 17,4%
- Belts: 674 tons, 9,3%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 67 tons, 0,9%
- Armour Deck: 485 tons, 6,7%
- Conning Tower: 40 tons, 0,6%
Machinery: 1.689 tons, 23,2%
Hull, fittings & equipment: 2.549 tons, 35,0%
Fuel, ammunition & stores: 1.355 tons, 18,6%
Miscellaneous weights: 280 tons, 3,8%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
8.786 lbs / 3.985 Kg = 64,1 x 6,5 " / 165 mm shells or 1,3 torpedoes
Stability (Unstable if below 1.00): 1,15
Metacentric height 2,2 ft / 0,7 m
Roll period: 13,8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,62
Seaboat quality (Average = 1.00): 1,25

Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0,511
Length to Beam Ratio: 10,73 : 1
'Natural speed' for length: 22,98 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 56
Bow angle (Positive = bow angles forward): -5,00 degrees
Stern overhang: 0,98 ft / 0,30 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23,62 ft / 7,20 m
- Forecastle (20%): 18,04 ft / 5,50 m
- Mid (50%): 16,40 ft / 5,00 m
- Quarterdeck (15%): 9,84 ft / 3,00 m (16,40 ft / 5,00 m before break)
- Stern: 9,84 ft / 3,00 m
- Average freeboard: 16,44 ft / 5,01 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 95,4%
- Above water (accommodation/working, high = better): 112,1%
Waterplane Area: 17.495 Square feet or 1.625 Square metres
Displacement factor (Displacement / loading): 120%
Structure weight / hull surface area: 87 lbs/sq ft or 426 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,97
- Longitudinal: 1,28
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

The dedication of 50 tons to Crew comfort makes this vessel ready for deployment in every weatherzone on earth, except the artic ice.

An early 1916 refit gives this ship.

70mm QF guns are changed to 6 37mm AA guns.
35 tons are reserved for the 21" CSA provided Torpedos in Italian style twin tubes.
1 fish in the tubes and 1 reload per tube. 3 tons of this are rails set in the deck and trolleys to move the 2 ton heavy torpedos in relative safety.

100 ton firecontrol
25 ton long range marconi
2 depth charge handling apparatus and 120 charges

28 tons undefined

Armored Cruisers

Talos

ciders

Darman