Project 633 class
NATO: Romeo class
Overview
Project 633 class
Soviet navy Project 633 (NATO: Romeo) class diesel-electric attack submarine.
Source: salar1933 -
© Copyright lies with original owner
Origin
Soviet Union
Type
Diesel-electric attack submarine
Entered service
1959
Status
Obsolete
Development
1955 - 1956
Developer
Soviet Union
-
TsKB-112 Lazurit central design bureau
Production
1957 - 1961
Producer
Soviet Union
-
Krasnoye Sormovo yard, Gorky
Number produced
20
Designations
Romeo class (NATO reporting name)
Notable users
Soviet Union
Bulgaria
Egypt
Algeria
Syria
Bulgaria
Egypt
Algeria
Syria
Details
Facts
Project 633 class
General
Origin
Soviet Union
Type
Diesel-electric attack submarine
Complement
52, including 9 officers
55 berths
Dimensions
Displacement (surface)
1.330 t standard
1.480 t with max fuel
Displacement (submerged)
1.730 t
Length
76.6 m
Beam
6.7 m
Draft
4.6 m
Propulsion
Arrangement
2x PG-101 main electric motors, 1.350 hp each
2x PG-103 economic electric motors, 50 hp each
Power source
2x 37D diesel engines, 2.000 hp each
224 batteries of type 46SU
Propulsion
2 shafts, shrouded six blade controllable pitch propellers
Mobility
Speed (surface)
15.2 knots
Speed (submerged)
13 knots
Range
7.400 nm surfaced at 9.2 knots
2.400 nm surfaced at 15.2 knots
Reportedly up to 14.600 nm surface with extended fuel load
4.500 nm snorkeling at 8 knots
350 nm diving at 2 knots
13 nm diving at 13 knots
Depth
170 m normal
240 m operational depth
300 m limit
Endurance
60 days
Sensors
Sonar
MG-200 Arktika-M (NATO: Pike Jaw)
MG-15 Sviyaga mine detection sonar
Surface search
Flag X-band surface search radar (NATO: Snoop Plate)
(some with MRK-50 Kaskad in refits since 1968)
Periscope
PA-10 attack periscope
PZN-10 or PNZG-10 anti-aircraft periscope
Systems
Fire control
Leningrad-633
Navigation
Krus-5 gyrocompass
EL-1 and NEL-5 echosounders
Communications
MG-15 Sviyaga doubles as underwater telephone
Electronic warfare
Electronic warfare
Nakat ELINT system
Van-S electronic reconnaissance system (NATO: Stop Light B)
ARP-53 radio direction finder
Svet-M active sonar detection
Khrom-K IFF system
Torpedoes
Tube arrangement
6x 533mm in bow
2x 533mm in stern
Weapon types
ET-46, ET-56, 53-39MP, 53-56, 53-57, 53-61
Weapon load
14 torpedoes or 28 AMD-1000 mines or 12 PMR-1 or PMR-2 naval mines
Media
Project 633 class
Soviet navy Project 633 (NATO: Romeo) class diesel-electric attack submarine seen in transit at sea.
Source: www.hazegray.org
Copyright: Copyright lies with original owner
Project 633 class
Soviet navy Project 633 (NATO: Romeo) class diesel-electric attack submarine seen in transit at sea.
Source: www.hazegray.org
Copyright: Copyright lies with original owner
Project 633 class
Soviet navy Project 633 (NATO: Romeo) class diesel-electric attack submarine.
Source: salar1933
Copyright: Copyright lies with original owner
Related articles
Project 613 class
The Project 633 is a further development of the Project 613 (Whiskey class) and is of a similar displacement. It has a sleeker hull shape and improved sonar and sensors.
Type 53-39
Among the various types of torpedoes carried by the Project 633 is the Type 53-39PM, a post war modification of the World War 2 era 53-39 torpedo.