Protected Cruisers

[Talos]

Saada class :

Egypt Protected Cruiser laid down 1892

Two old protected cruisers, also considered as light cruisers by the Egyptian naval authorities.

PC-1 Saada
PC-2 Rebaa

Sold for scrap in 1917.

Displacement:
2,526 t light; 2,640 t standard; 3,000 t normal; 3,288 t full load

Dimensions: Length overall / water x beam x draught
260.00 ft / 260.00 ft x 36.00 ft x 20.00 ft (normal load)
79.25 m / 79.25 m x 10.97 m x 6.10 m

Armament:
6 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1892 Model
Quick firing guns in deck mounts
on side, evenly spread
8 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1892 Model
Machine guns in deck mounts
on side, all amidships
Weight of broadside 649 lbs / 294 kg
Shells per gun, main battery: 150
2 - 16.0" / 406.4 mm submerged torpedo tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.00" / 51 mm 240.00 ft / 73.15 m 7.20 ft / 2.19 m
Ends: Unarmoured
Main Belt covers 142 % of normal length
Main belt does not fully cover magazines and engineering spaces

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm - -
2nd: 0.50" / 13 mm - -

- Armour deck: 2.50" / 64 mm, Conning tower: 4.00" / 102 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 7,382 ihp / 5,507 Kw = 19.00 kts
Range 6,000nm at 9.00 kts
Bunker at max displacement = 648 tons (100% coal)

Complement:
202 - 263

Cost:
£0.325 million / $1.298 million

Distribution of weights at normal displacement:
Armament: 81 tons, 2.7 %
Armour: 504 tons, 16.8 %
- Belts: 138 tons, 4.6 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 42 tons, 1.4 %
- Armour Deck: 305 tons, 10.2 %
- Conning Tower: 18 tons, 0.6 %
Machinery: 1,201 tons, 40.0 %
Hull, fittings & equipment: 741 tons, 24.7 %
Fuel, ammunition & stores: 474 tons, 15.8 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,186 lbs / 538 Kg = 11.0 x 6.0 " / 152 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.44
Metacentric height 2.0 ft / 0.6 m
Roll period: 10.6 seconds
Steadiness - As gun platform (Average = 50 %): 65 %
- Recoil effect (Restricted arc if above 1.00): 0.26
Seaboat quality (Average = 1.00): 1.30

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.561
Length to Beam Ratio: 7.22 : 1
'Natural speed' for length: 16.12 kts
Power going to wave formation at top speed: 57 %
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: 17.74 ft / 5.41 m
- Forecastle (20 %): 11.29 ft / 3.44 m
- Mid (50 %): 11.29 ft / 3.44 m
- Quarterdeck (15 %): 11.29 ft / 3.44 m
- Stern: 11.29 ft / 3.44 m
- Average freeboard: 11.81 ft / 3.60 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 161.2 %
- Above water (accommodation/working, high = better): 70.3 %
Waterplane Area: 6,599 Square feet or 613 Square metres
Displacement factor (Displacement / loading): 79 %
Structure weight / hull surface area: 62 lbs/sq ft or 302 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.89
- Longitudinal: 2.89
- 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