Public information : 2,000tons, 90m x 11.5m, x 4m, 4 x 120mm, 27knts
Class Names :
Numbered PC-1, PC-2, etc.
PC-22-A2, Belgium Escort laid down 1935
Displacement:
1,874 t light; 1,953 t standard; 2,277 t normal; 2,537 t full load
Dimensions: Length overall / water x beam x draught
303.84 ft / 295.28 ft x 37.40 ft x 13.12 ft (normal load)
92.61 m / 90.00 m x 11.40 m x 4.00 m
Armament:
4 - 4.70" / 119 mm guns in single mounts, 51.91lbs / 23.55kg shells, 1935 Model
Breech loading guns in deck mounts
on centreline, all forward, 2 raised mounts - superfiring
4 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, all amidships
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1930 Model
Dual purpose guns in deck mounts
on side, all aft, 1 raised mount - superfiring
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1927 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 2 raised mounts
Weight of broadside 273 lbs / 124 kg
Shells per gun, main battery: 200
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.76" / 70 mm 190.29 ft / 58.00 m 7.22 ft / 2.20 m
Ends: 0.59" / 15 mm 65.62 ft / 20.00 m 7.22 ft / 2.20 m
39.37 ft / 12.00 m Unarmoured ends
Upper: 1.18" / 30 mm 190.29 ft / 58.00 m 6.56 ft / 2.00 m
Main Belt covers 99 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.57" / 40 mm 0.98" / 25 mm -
2nd: 0.98" / 25 mm 0.59" / 15 mm -
3rd: 0.59" / 15 mm - -
4th: 0.39" / 10 mm - -
- Armour deck: 1.18" / 30 mm, Conning tower: 3.15" / 80 mm
Machinery:
Coal and oil fired boilers, steam turbines,
Geared drive, 2 shafts, 16,082 shp / 11,997 Kw = 24.38 kts
Range 8,000nm at 12.00 kts
Bunker at max displacement = 584 tons (90% coal)
Complement:
164 - 214
Cost:
£0.835 million / $3.339 million
Distribution of weights at normal displacement:
Armament: 34 tons, 1.5 %
Armour: 442 tons, 19.4 %
- Belts: 235 tons, 10.3 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 26 tons, 1.2 %
- Armour Deck: 168 tons, 7.4 %
- Conning Tower: 12 tons, 0.5 %
Machinery: 498 tons, 21.8 %
Hull, fittings & equipment: 801 tons, 35.2 %
Fuel, ammunition & stores: 403 tons, 17.7 %
Miscellaneous weights: 100 tons, 4.4 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3,574 lbs / 1,621 Kg = 68.8 x 4.7 " / 119 mm shells or 1.0 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 1.5 ft / 0.4 m
Roll period: 12.9 seconds
Steadiness - As gun platform (Average = 50 %): 73 %
- Recoil effect (Restricted arc if above 1.00): 0.24
Seaboat quality (Average = 1.00): 1.31
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 7.89 : 1
'Natural speed' for length: 17.18 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 56
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.03 ft / 5.80 m
- Forecastle (20 %): 17.06 ft / 5.20 m
- Mid (75 %): 17.06 ft / 5.20 m
- Quarterdeck (15 %): 9.19 ft / 2.80 m
- Stern: 9.19 ft / 2.80 m
- Average freeboard: 15.64 ft / 4.77 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 88.3 %
- Above water (accommodation/working, high = better): 147.3 %
Waterplane Area: 7,707 Square feet or 716 Square metres
Displacement factor (Displacement / loading): 126 %
Structure weight / hull surface area: 56 lbs/sq ft or 274 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.88
- Longitudinal: 3.55
- Overall: 1.01
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
10% license fee to SAE per unit.
4.7" guns are Vickers ordered from England, the 75mm is Semi-Auto by Bourges-FRC (Fonderie Royale de Cannons), and the 37mm are by Schneiders license-built by FRC, while the 20mm is Madsen
Edit : 2/7/12 : The miscellaneous weight is meant to represent sonar, k-guns and depth charges, and early (1937ish Dutch) radar.
This post has been edited 5 times, last edit by "Kaiser Kirk" (Feb 8th 2012, 8:27am)