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Natya Class (Project 266M Akvamarin Class) Russian Ocean Minesweeper

Natya Class

Mine Clearing Vehicle
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Basic Information
Name
Natya Class (Project 266M Akvamarin Class) Russian Ocean Minesweeper
Designation
Natya Class
Alternate Designation
Natya Class; Project 266M Akvamarin Class
Equipment Type
Mine Clearing Vehicle
Manufacturer
Sudostroitel'noye Obyedineniye "Almaz" (Sredniy Neva)
Date of Introduction
1970
Description

The Natya Class (Project 266M Akvamarin Class) Russian Ocean Minesweeper were a group of minesweepers built for the Soviet Navy and export customers during the 1970s and 1980s (58 ships were built). The Soviet designation was Project 266M Akvamarin. The ships were used for ocean minesweeping. The design evolved from the Yurka class minesweeper with new demining equipment including more advanced sonar and closed-circuit TV. A stern ramp made recovering sweeps easier. The hull was built of low magnetic steel. To protect against acoustic mines the foundation's main engines and diesel generators were padded with rubber, installation of mechanisms for isolating dampers; installation of flexible inserts in pipes; application of low-noise propellers controlled step large-diameter, as well as the installation of low-noise machinery and equipment. An electrical field compensator was also installed.

Naval & Littoral Specifications
Crew 68
Beam 10.20 m
Draft 3.60 m
Variants
Semen Roshal Commissioned: 1970 Status: Active Fleet: INA
Kontr-admiral Pershin Commissioned: 1970 Status: Active Fleet: INA
RADIST (ex-Russian KHARKOVSKIY KOMSOMOLETS Commissioned: 1973 Status: Reserve Fleet: INA
KOMENDOR Commissioned: 1974 Status: Active Fleet: INA
NAVODCHIK Commissioned: 1974 Status: Reserve Fleet: INA
TURBINIST Commissioned: 1975 Status: Active Fleet: INA
PULEMETCHIK Commissioned: 1975 Status: Active Fleet: INA
MASHINIST Commissioned: 1975 Status: Active Fleet: INA
MOTORIST Commissioned: 1976 Status: Active Fleet: INA
SNAYPR Commissioned: 1976 Status: Active Fleet: INA
VITSE-ADMIRAL ZHUKOV (ex-Russian EHLETRIK) Commissioned: 1977 Status: Active Fleet: INA
SVYTAZIST Commissioned: 1978 Status: Active Fleet: INA
MARSOVTY Commissioned: 1986 Status: Active Fleet: INA
DAL'NOMERSHCHIK Commissioned: 1987 Status: Active Fleet: INA
System
Alternative Designation Natya Class; Project 266M Akvamarin Class
Type Ocean Minesweeper
Builder Sudostroitel'noye Obyedineniye "Almaz" (Sredniy Neva), Kolpino, Russia
Crew 68 total (6 Off. + 62 Enl.)
Dimensions
Length 61.0 m
Beam 10.2 m
Draft 3.6 m
Displacement, Standard 750 tons
Displacement, Full Load 873 tons
Propulsion System
Engine Name M503-3E
Engine Type 2 x Diesel (2 shafts)
Engine Power 5,000 bhp
Propellers 2 x shrouded, controllable-pitch propellers
Maximum Range 5,200 nm
Maximum Speed 18 kts
Endurance 3 days
Minesweeping Equipment
Sonar 1 x MG-7 and 1 x MG-69 Lan-2
Contact Sweep Equipment 1 x VKT-1 mechanical sweep; 1 x AT-2 acoustic sweep; 1 x .SEMT-1 solenoid coil sweep
Automated Mine Warfare System Yes
Mine Disposal Charges Yes, 32 x mine-disposal charges in lieu of mines
Mine Trawler Net Yes, net trawl deployed over the stern ramp
Gun Weapon Systems
Gun Weapon System #1
Name 2 x AK-230 30mm Naval Gun
Type Naval Gun
Caliber 30 mm
Crew 1
Barrel Length 2,140 mm
Width 865 mm
Height INA
Weight, Gun Mount 156 kg
Barrels 2 ea
Action Gas-operated revolver cannon
Elevation +87° to -12° (50°/sec)
Traverse ±180° (35°/sec)
Rate of Fire (Max) 1,000 rounds/min (Cyclic)
Muzzle Velocity 1,050 m/s
Maximum Firing Range 5,000 m
Effective Firing Range 2,500 m (aerial); 4,000 m (maritime)
Feed System Belt-fed
Sights The weapon is remote-directed, typically by a fire-control system linked to either a Drum Tilt or Muff Cobb radar systems.
Gun Weapon System #1 Ammunition
Type HEI-Frag, Frag-T, API
Caliber 30 mm
Shell Weight 0.39 kg
Basic Load INA
Gun Weapon System #2
Name 2 x 2M-3M Naval dual-purpose gun
Type Naval dual-purpose gun
Caliber 25 mm
Crew 1
Barrel Length 2.0 m
Height INA
Weight, Gun Mount 110 kg
Barrels 2 ea
Action Gas-operated
Elevation -10 / +85 degrees
Traverse 360 degrees
Rate of Fire 450 rds/min (Cyclic)
Muzzle Velocity 900 m/s
Effective Firing Range 2,800 m
Feed System Belt-fed (65 rd belts)
Sights Optical
Gun Weapon System #2 Ammunition
Type HE-FRAG, AP, Tracer, Bursting Charge
Caliber 25 mm
Shell Weight 0.644 - 0.672 kg
Basic Load INA
Missiles
Name SA-N-5 Grail [9M32M]
Type Surface to Air Missile
Length 1.42 m
Weight 9.0 kg
Purpose Anti-air, Stern Chase
Guidance IR Seeker
Range (Maximum) 18 km
Rocket Weapon System
Name 2 x RBU-1200
Type Subsurface Rocket
Purpose Anti-submarine Warfare (ASW)
Length 1.24 m
Weight 72.0 kg
Wing Span 0.25 m
Quantity 5 x Rockets (standard loadout)
Fire Control Systems (FCS)
FCS Name INA
Computerized FCS Yes
Integrated Bridge System Yes
Radar Systems
Navigation Radar 1 x Kivach navigation radar
Fire Control System Radar 1 x Drum Tilt FCS radar
Surface Search 2 x Don 2 Surface / Search
Radar Warning Receiver 1 x Bell Tap radar receiver
Protection
Hull The hull was built of low magnetic steel.
Countermeasures INA
NBC Water Washdown System Yes
Details
Country of Origin Russia
Category Naval
Naval
Filter Label
N
Classification
Domain
Naval & Littoral
Equipment Status
Active
Dimensions
Length
61 m
Width
10.2 m
Height
Weight
9 kg
Operators (5)
Russia
India
Libya
Syria
Yemen
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