All Ten Custodi I Sloops, depicted below in their final configuration, were scapped in 1926H1
QuoteCustodi I, Imperial Roman Navy Sloop laid down 1890
Displacement:
500 t light; 520 t standard; 596 t normal; 657 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(187.00 ft / 183.73 ft) x 26.25 ft x (9.84 / 10.58 ft)
(57.00 m / 56.00 m) x 8.00 m x (3.00 / 3.22 m)
Armament:
1 - 5.51" / 140 mm 45.0 cal gun - 79.37lbs / 36.00kg shells, 50 per gun
Breech loading gun in deck mount, 1890 Model
1 x Single mount on centreline, forward deck centre
2 - 2.95" / 75.0 mm 45.0 cal guns - 13.23lbs / 6.00kg shells, 150 per gun
Breech loading guns in deck mounts, 1890 Model
2 x Single mounts on sides, aft deck centre
4 - 1.77" / 45.0 mm 45.0 cal guns - 2.76lbs / 1.25kg shells, 500 per gun
Breech loading guns in deck mounts, 1885 Model
4 x Single mounts on sides, evenly spread
Weight of broadside 117 lbs / 53 kg
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.59" / 15 mm - -
2nd: 0.59" / 15 mm - -
Machinery:
Coal fired boilers, simple reciprocating steam engines,
Direct drive, 1 shaft, 675 ihp / 504 Kw = 13.02 kts
Range 2,500nm at 10.00 kts
Bunker at max displacement = 137 tons (100% coal)
Complement:
59 - 78
Cost:
£0.042 million / $0.167 million
Distribution of weights at normal displacement:
Armament: 19 tons, 3.2 %
- Guns: 19 tons, 3.2 %
Armour: 4 tons, 0.7 %
- Armament: 4 tons, 0.7 %
Machinery: 131 tons, 22.0 %
Hull, fittings & equipment: 188 tons, 31.5 %
Fuel, ammunition & stores: 96 tons, 16.0 %
Miscellaneous weights: 158 tons, 26.5 %
- Hull below water: 3 tons
- Hull above water: 95 tons
- On freeboard deck: 50 tons
- Above deck: 10 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
722 lbs / 328 Kg = 8.6 x 5.5 " / 140 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.27
Metacentric height 1.0 ft / 0.3 m
Roll period: 10.8 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.18
Seaboat quality (Average = 1.00): 1.92
Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.440 / 0.451
Length to Beam Ratio: 7.00 : 1
'Natural speed' for length: 13.55 kts
Power going to wave formation at top speed: 40 %
Trim (Max stability = 0, Max steadiness = 100): 37
Bow angle (Positive = bow angles forward): 5.00 degrees
Stern overhang: 2.56 ft / 0.78 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 8.20 ft / 2.50 m, 8.20 ft / 2.50 m
- Forward deck: 30.00 %, 8.20 ft / 2.50 m, 8.20 ft / 2.50 m
- Aft deck: 35.00 %, 8.20 ft / 2.50 m, 8.20 ft / 2.50 m
- Quarter deck: 15.00 %, 8.20 ft / 2.50 m, 8.20 ft / 2.50 m
- Average freeboard: 8.20 ft / 2.50 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 99.2 %
- Above water (accommodation/working, high = better): 76.8 %
Waterplane Area: 2,901 Square feet or 270 Square metres
Displacement factor (Displacement / loading): 124 %
Structure weight / hull surface area: 40 lbs/sq ft or 197 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.44
- Overall: 1.00
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