X-200, Greek X Lighter laid down 1941-42
X-201 through X-216
Displacement:
180 t light; 187 t standard; 200 t normal; 210 t full load
Dimensions: Length overall / water x beam x draught
101.76 ft / 100.00 ft x 23.80 ft x 5.25 ft (normal load)
31.02 m / 30.48 m x 7.25 m x 1.60 m
Armament:
4 - 0.98" / 25.0 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Aft Main mounts separated by engine room
2 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1941 Model
Machine guns in deck mounts
on side, all forward
Weight of broadside 2 lbs / 1 kg
Shells per gun, main battery: 2,500
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.50" / 13 mm - -
2nd: 0.50" / 13 mm - -
Machinery:
Diesel Internal combustion motors,
Direct drive, 1 shaft, 149 shp / 112 Kw = 9.70 kts
Range 2,500nm at 9.70 kts
Bunker at max displacement = 23 tons
Complement:
26 - 34
Cost:
£0.044 million / $0.175 million
Distribution of weights at normal displacement:
Armament: 0 tons, 0.1 %
Armour: 0 tons, 0.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.2 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 4 tons, 2.0 %
Hull, fittings & equipment: 75 tons, 37.6 %
Fuel, ammunition & stores: 20 tons, 10.0 %
Miscellaneous weights: 100 tons, 50.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
516 lbs / 234 Kg = 1,082.4 x 1.0 " / 25 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 0.7 ft / 0.2 m
Roll period: 11.9 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 2.00
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.560
Length to Beam Ratio: 4.20 : 1
'Natural speed' for length: 10.00 kts
Power going to wave formation at top speed: 50 %
Trim (Max stability = 0, Max steadiness = 100): 25
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 10.00 ft / 3.05 m
- Forecastle (20 %): 10.00 ft / 3.05 m
- Mid (50 %): 9.00 ft / 2.74 m
- Quarterdeck (15 %): 9.00 ft / 2.74 m
- Stern: 9.00 ft / 2.74 m
- Average freeboard: 9.35 ft / 2.85 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 64.3 %
- Above water (accommodation/working, high = better): 110.2 %
Waterplane Area: 1,629 Square feet or 151 Square metres
Displacement factor (Displacement / loading): 181 %
Structure weight / hull surface area: 28 lbs/sq ft or 136 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.89
- Longitudinal: 8.45
- Overall: 1.11
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
This post has been edited 1 times, last edit by "Sachmle" (Dec 7th 2012, 12:35am)