Zaindaria-class Ironclad Corvette (1867)

Zaindaria, Syrellian Ironclad Cruiser laid down 1867 (Engine 1895)

Displacement:
 2,994 t light; 3,149 t standard; 3,416 t normal; 3,630 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
 (295.28 ft / 295.28 ft) x 39.37 ft x (18.70 / 19.65 ft)
 (90.00 m / 90.00 m) x 12.00 m x (5.70 / 5.99 m)

Armament:

```
     2 - 9.06" / 230 mm 28.0 cal guns - 268.88lbs / 121.96kg shells, 180 per gun

```

 Muzzle loading guns in deck mounts, 1865 Model
 1 x Single mount on centreline, forward deck aft
 1 x Single mount on centreline, aft deck forward

```
     10 - 5.51" / 140 mm 24.0 cal guns - 59.97lbs / 27.20kg shells, 100 per gun

```

 Muzzle loading guns in casemate mounts, 1865 Model
 10 x Single mounts on sides, evenly spread
 10 hull mounts in casemates- Limited use in all but light seas

```
     Weight of broadside 1,137 lbs / 516 kg

```

Armour:

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

```

 Main: 5.91" / 150 mm 191.93 ft / 58.50 m 7.51 ft / 2.29 m
 Ends: 3.94" / 100 mm 103.31 ft / 31.49 m 7.51 ft / 2.29 m
 Main Belt covers 100 % of normal length

Machinery:
 Coal fired boilers, simple reciprocating steam engines,
 Direct drive, 1 shaft, 739 ihp / 551 Kw = 10.00 kts
 Range 5,500nm at 8.00 kts
 Bunker at max displacement = 481 tons (100% coal)

Complement:
 223 - 290

Cost:
 £0.155 million / $0.619 million

Distribution of weights at normal displacement:
 Armament: 92 tons, 2.7 %
 - Guns: 92 tons, 2.7 %
 Armour: 474 tons, 13.9 %
 - Belts: 474 tons, 13.9 %
 Machinery: 137 tons, 4.0 %
 Hull, fittings & equipment: 1,540 tons, 45.1 %
 Fuel, ammunition & stores: 423 tons, 12.4 %
 Miscellaneous weights: 750 tons, 22.0 %
 - Hull below water: 350 tons
 - Hull above water: 30 tons
 - On freeboard deck: 20 tons
 - Above deck: 350 tons

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
 5,625 lbs / 2,552 Kg = 23.1 x 9.1 " / 230 mm shells or 2.6 torpedoes
 Stability (Unstable if below 1.00): 1.03
 Metacentric height 1.3 ft / 0.4 m
 Roll period: 14.5 seconds
 Steadiness - As gun platform (Average = 50 %): 86 %
 - Recoil effect (Restricted arc if above 1.00): 0.43
 Seaboat quality (Average = 1.00): 1.71

Hull form characteristics:
 Hull has a flush deck,
 a normal bow and a cruiser stern
 Block coefficient (normal/deep): 0.550 / 0.556
 Length to Beam Ratio: 7.50 : 1
 'Natural speed' for length: 17.18 kts
 Power going to wave formation at top speed: 22 %
 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 (% = length of deck as a percentage of waterline length):
 Fore end, Aft end
 - Forecastle: 20.00 %, 15.94 ft / 4.86 m, 13.98 ft / 4.26 m
 - Forward deck: 30.00 %, 13.98 ft / 4.26 m, 12.04 ft / 3.67 m
 - Aft deck: 35.00 %, 12.04 ft / 3.67 m, 12.04 ft / 3.67 m
 - Quarter deck: 15.00 %, 12.04 ft / 3.67 m, 12.04 ft / 3.67 m
 - Average freeboard: 12.88 ft / 3.92 m
 Ship tends to be wet forward

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 36.8 %
 - Above water (accommodation/working, high = better): 83.9 %
 Waterplane Area: 7,868 Square feet or 731 Square metres
 Displacement factor (Displacement / loading): 191 %
 Structure weight / hull surface area: 114 lbs/sq ft or 558 Kg/sq metre
 Hull strength (Relative):
 - Cross-sectional: 1.18
 - Longitudinal: 2.76
 - Overall: 1.29
 Excellent 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