Mendekua-class Armoured Cruisers (1885)

Mendekua-class, Syrellian Armoured Cruiser laid down 1885

Displacement:
 5,081 t light; 5,360 t standard; 6,274 t normal; 7,005 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
 (314.96 ft / 311.68 ft) x 55.77 ft x (22.97 / 25.07 ft)
 (96.00 m / 95.00 m) x 17.00 m x (7.00 / 7.64 m)

Armament:

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     2 - 9.20" / 234 mm 31.0 cal guns - 334.84lbs / 151.88kg shells, 130 per gun

```

 Breech loading guns in deck and hoist mounts, 1881 Model
 1 x Single mount on centreline forward
 1 raised mount - superfiring
 1 x Single mount layout not set

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     10 - 5.91" / 150 mm 45.0 cal guns - 99.87lbs / 45.30kg shells, 150 per gun

```

 Breech loading guns in casemate mounts, 1885 Model
 10 x Single mounts on sides, evenly spread
 10 hull mounts in casemates- Limited use in all but light seas

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     10 - 2.95" / 75.0 mm 50.0 cal guns - 13.12lbs / 5.95kg shells, 300 per gun

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 Quick firing guns in deck mounts, 1885 Model
 10 x Single mounts on sides, evenly spread

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     Weight of broadside 1,800 lbs / 816 kg

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Armour:

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  - Belts:		Width (max)	Length (avg)		Height (avg)

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 Main: 5.91" / 150 mm 202.59 ft / 61.75 m 8.96 ft / 2.73 m
 Ends: 2.36" / 60 mm 109.06 ft / 33.24 m 8.96 ft / 2.73 m
 Upper: 2.36" / 60 mm 202.59 ft / 61.75 m 8.01 ft / 2.44 m
 Main Belt covers 100 % of normal length

```
  - Torpedo Bulkhead - Strengthened structural bulkheads:

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 1.18" / 30 mm 202.59 ft / 61.75 m 21.10 ft / 6.43 m
 Beam between torpedo bulkheads 55.77 ft / 17.00 m

```
  - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)

```

 Main: 5.91" / 150 mm 3.94" / 100 mm 3.94" / 100 mm
 2nd: 1.18" / 30 mm 0.79" / 20 mm 0.79" / 20 mm
 3rd: 0.79" / 20 mm - -

```
  - Armoured deck - single deck:

```

 For and Aft decks: 1.57" / 40 mm
 Forecastle: 0.79" / 20 mm Quarter deck: 0.79" / 20 mm

```
  - Conning towers: Forward 9.84" / 250 mm, Aft 2.36" / 60 mm

```

Machinery:
 Coal fired boilers, simple reciprocating steam engines,
 Direct drive, 2 shafts, 7,482 ihp / 5,581 Kw = 17.00 kts
 Range 6,500nm at 10.00 kts
 Bunker at max displacement = 1,645 tons (100% coal)

Complement:
 352 - 458

Cost:
 £0.479 million / $1.917 million

Distribution of weights at normal displacement:
 Armament: 296 tons, 4.7 %
 - Guns: 296 tons, 4.7 %
 Armour: 1,477 tons, 23.5 %
 - Belts: 729 tons, 11.6 %
 - Torpedo bulkhead: 187 tons, 3.0 %
 - Armament: 148 tons, 2.4 %
 - Armour Deck: 323 tons, 5.2 %
 - Conning Towers: 89 tons, 1.4 %
 Machinery: 1,454 tons, 23.2 %
 Hull, fittings & equipment: 1,604 tons, 25.6 %
 Fuel, ammunition & stores: 1,193 tons, 19.0 %
 Miscellaneous weights: 250 tons, 4.0 %
 - Hull below water: 60 tons
 - Hull above water: 100 tons
 - On freeboard deck: 60 tons
 - Above deck: 30 tons

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
 6,349 lbs / 2,880 Kg = 17.6 x 9.2 " / 234 mm shells or 1.4 torpedoes
 Stability (Unstable if below 1.00): 1.42
 Metacentric height 3.8 ft / 1.2 m
 Roll period: 11.9 seconds
 Steadiness - As gun platform (Average = 50 %): 81 %
 - Recoil effect (Restricted arc if above 1.00): 0.37
 Seaboat quality (Average = 1.00): 1.63

Hull form characteristics:
 Hull has a flush deck,
 a ram bow and a cruiser stern
 Block coefficient (normal/deep): 0.550 / 0.562
 Length to Beam Ratio: 5.59 : 1
 'Natural speed' for length: 17.65 kts
 Power going to wave formation at top speed: 50 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): -15.00 degrees
 Stern overhang: -1.64 ft / -0.50 m
 Freeboard (% = length of deck as a percentage of waterline length):
 Fore end, Aft end
 - Forecastle: 20.00 %, 13.12 ft / 4.00 m, 13.12 ft / 4.00 m
 - Forward deck: 40.00 %, 13.12 ft / 4.00 m, 13.12 ft / 4.00 m
 - Aft deck: 25.00 %, 13.12 ft / 4.00 m, 13.12 ft / 4.00 m
 - Quarter deck: 15.00 %, 13.12 ft / 4.00 m, 13.12 ft / 4.00 m
 - Average freeboard: 13.12 ft / 4.00 m
 Ship tends to be wet forward

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 94.0 %
 - Above water (accommodation/working, high = better): 86.2 %
 Waterplane Area: 12,132 Square feet or 1,127 Square metres
 Displacement factor (Displacement / loading): 113 %
 Structure weight / hull surface area: 105 lbs/sq ft or 513 Kg/sq metre
 Hull strength (Relative):
 - Cross-sectional: 0.90
 - Longitudinal: 2.76
 - Overall: 1.01
 Adequate machinery, storage, compartmentation space
 Cramped accommodation and workspace room
 Ship has slow, easy roll, a good, steady gun platform
 Excellent seaboat, comfortable, can fire her guns in the heaviest weather