Project 61 "Gostinitsa" class, Russian Patrul'ny Storozhevoy Kater (Coastguard Patrol Cutter) laid down 1941
Displacement:
222 t light; 231 t standard; 285 t normal; 327 t full load
Dimensions: Length overall / water x beam x draught
173.51 ft / 164.04 ft x 19.69 ft x 7.71 ft (normal load)
52.89 m / 50.00 m x 6.00 m x 2.35 m
Armament:
1 - 3.00" / 76.2 mm guns in single mounts, 15.43lbs / 7.00kg shells, 1941 Model
Dual purpose gun in a deck mount with hoist
on centreline forward
2 - 1.46" / 37.0 mm guns (1x2 guns), 1.55lbs / 0.70kg shells, 1941 Model
Anti-aircraft guns in a deck mount with hoist
on centreline aft
8 - 0.55" / 14.0 mm guns (4x2 guns), 0.08lbs / 0.04kg shells, 1941 Model
Breech loading guns in deck mounts
on side, evenly spread, 2 raised mounts
Weight of broadside 19 lbs / 9 kg
Shells per gun, main battery: 300
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.20" / 5 mm -
2nd: 0.98" / 25 mm 0.20" / 5 mm -
- Conning tower: 1.18" / 30 mm
Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 1,518 shp / 1,132 Kw = 18.00 kts
Range 6,300nm at 12.00 kts
Bunker at max displacement = 96 tons
Complement:
34 - 45
Cost:
£0.094 million / $0.375 million
Distribution of weights at normal displacement:
Armament: 2 tons, 0.8 %
Armour: 3 tons, 1.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 2 tons, 0.6 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 1 tons, 0.4 %
Machinery: 40 tons, 14.1 %
Hull, fittings & equipment: 142 tons, 49.8 %
Fuel, ammunition & stores: 63 tons, 22.1 %
Miscellaneous weights: 35 tons, 12.3 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
670 lbs / 304 Kg = 49.6 x 3.0 " / 76 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 0.5 ft / 0.2 m
Roll period: 11.6 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.22
Seaboat quality (Average = 1.00): 2.00
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.400
Length to Beam Ratio: 8.33 : 1
'Natural speed' for length: 12.81 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 25
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 16.40 ft / 5.00 m
- Forecastle (20 %): 10.17 ft / 3.10 m
- Mid (50 %): 10.17 ft / 3.10 m
- Quarterdeck (15 %): 10.17 ft / 3.10 m
- Stern: 11.48 ft / 3.50 m
- Average freeboard: 10.77 ft / 3.28 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 66.8 %
- Above water (accommodation/working, high = better): 113.3 %
Waterplane Area: 1,988 Square feet or 185 Square metres
Displacement factor (Displacement / loading): 210 %
Structure weight / hull surface area: 28 lbs/sq ft or 138 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.77
- Longitudinal: 9.99
- Overall: 1.00
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
Breakdown of Miscellaneous Weights:
- 5 tons for electronics
- 20 tons for mines or depth charges
- 5 tons for climatization gear
- 5 tons for minesweeping paravanes
Electronics Suite:
- NR-119 navigational and air-warning radar (1 radar, 2.5 tons)
- Antisubmarine Hydrophones (1 sonar, 2.5 tons)
Ships in Class:
PSKR-01: Laid down January 1st, 1941
PSKR-02: Laid down January 1st, 1941
PSKR-03: Laid down January 1st, 1941
PSKR-04: Laid down January 1st, 1941
PSKR-05: Laid down January 1st, 1941
PSKR-06: Laid down September 1st, 1941
PSKR-07: Laid down September 1st, 1941
PSKR-08: Laid down September 1st, 1941
PSKR-09: Laid down September 1st, 1941
PSKR-10: Laid down September 1st, 1941
PSKR-11: Laid down January 1st, 1943
PSKR-12: Laid down January 1st, 1943
PSKR-13: Laid down January 1st, 1943
PSKR-14: Laid down January 1st, 1943
PSKR-15: Laid down January 1st, 1943
PSKR-16: Laid down January 1st, 1943
PSKR-17: Laid down January 1st, 1943
PSKR-18: Laid down January 1st, 1943
PSKR-19: Laid down January 1st, 1943
PSKR-20: Laid down January 1st, 1943
PSKR-21: Laid down March 1st, 1943
PSKR-22: Laid down March 1st, 1943
PSKR-23: Laid down March 1st, 1943
PSKR-24: Laid down March 1st, 1943
PSKR-25: Laid down March 1st, 1943
PSKR-26: Laid down March 1st, 1943
PSKR-27: Laid down March 1st, 1943
PSKR-28: Laid down March 1st, 1943
PSKR-29: Laid down March 1st, 1943
PSKR-30: Laid down March 1st, 1943
PSKR-31: Laid down July 1st, 1943
PSKR-32: Laid down July 1st, 1943
PSKR-33: Laid down July 1st, 1943
PSKR-34: Laid down July 1st, 1943
PSKR-35: Laid down July 1st, 1943
PSKR-36: Laid down July 1st, 1943
PSKR-37: Laid down July 1st, 1943
PSKR-38: Laid down July 1st, 1943
PSKR-39: Laid down July 1st, 1943
PSKR-40: Laid down July 1st, 1943
PSKR-41: Laid down January 1st, 1944
PSKR-42: Laid down January 1st, 1944
PSKR-43: Laid down January 1st, 1944
PSKR-44: Laid down January 1st, 1944
PSKR-45: Laid down January 1st, 1944
PSKR-46: Laid down January 1st, 1944
PSKR-47: Laid down January 1st, 1944
PSKR-48: Laid down January 1st, 1944
PSKR-49: Laid down January 1st, 1944
PSKR-50: Laid down January 1st, 1944
PSKR-51: Laid down July 1st, 1944
PSKR-52: Laid down July 1st, 1944
PSKR-53: Laid down July 1st, 1944
PSKR-54: Laid down July 1st, 1944
PSKR-55: Laid down July 1st, 1944
PSKR-56: Laid down July 1st, 1944
PSKR-57: Laid down July 1st, 1944
PSKR-58: Laid down July 1st, 1944
PSKR-59: Laid down July 1st, 1944
PSKR-60: Laid down July 1st, 1944
PSKR-61: Laid down January 1st, 1945
PSKR-62: Laid down January 1st, 1945
PSKR-63: Laid down January 1st, 1945
PSKR-64: Laid down January 1st, 1945
PSKR-65: Laid down January 1st, 1945
PSKR-66: Laid down January 1st, 1945
PSKR-67: Laid down January 1st, 1945
PSKR-68: Laid down January 1st, 1945
PSKR-69: Laid down January 1st, 1945
PSKR-70: Laid down January 1st, 1945
PSKR-71: Laid down July 1st, 1945
PSKR-72: Laid down July 1st, 1945
PSKR-73: Laid down July 1st, 1945
PSKR-74: Laid down July 1st, 1945
PSKR-75: Laid down July 1st, 1945
PSKR-76: Laid down July 1st, 1945
PSKR-77: Laid down July 1st, 1945
PSKR-78: Laid down July 1st, 1945
PSKR-79: Laid down July 1st, 1945
PSKR-80: Laid down July 1st, 1945
PSKR-81: Laid down January 1st, 1946
PSKR-82: Laid down January 1st, 1946
PSKR-83: Laid down January 1st, 1946
PSKR-84: Laid down January 1st, 1946
PSKR-85: Laid down January 1st, 1946
PSKR-86: Laid down January 1st, 1946
PSKR-87: Laid down January 1st, 1946
PSKR-88: Laid down January 1st, 1946
PSKR-89: Laid down January 1st, 1946
PSKR-90: Laid down January 1st, 1946
PSKR-91: Laid down July 1st, 1946
PSKR-92: Laid down July 1st, 1946
PSKR-93: Laid down July 1st, 1946
PSKR-94: Laid down July 1st, 1946
PSKR-95: Laid down July 1st, 1946
PSKR-96: Laid down July 1st, 1946
PSKR-97: Laid down July 1st, 1946
PSKR-98: Laid down July 1st, 1946
PSKR-99: Laid down July 1st, 1946
PSKR-100: Laid down July 1st, 1946