Project 671RT Semga

Project 671RT

NATO: Victor II

Project 671RT Semga (Rubikon)

Type	SSN
Soviet designation	PLA
NATO reporting name	Victor II (mod)
Country	USSR
Displacement (t)	6,000
Length (m)	102.0
Beam (m)	10.6
Draft (m)	6.5
Height (m)	10.6
Max speed submerged (kn)	30.0
Max speed surfaced (kn)	18.0
Max safe depth (m)	320
Endurance (days)	60
Propeller	1 x 5 bladed propeller
Nuclear reactors	2
Titanium hull	No
Class year	1972

Sensors

Sonar (8)

Name	Type	Platform	Passive range (km)	Active range (km)
MG-25	com	sub	—	—
MG-43 Gorizont	ssp		—	—
MG-519	Mine detection	sub	—	1.5
MGK-400 Rubikon Active	Hull	sub	—	4.7
MGK-400 Rubikon Cylindrical	Cylindrical	sub	2.1	—
MGK-400 Rubikon flank array	Flank	sub	2.1	—
MGK-400 Rubikon OGS	Active Intercept		—	—
NEL-6	Echo sounder	sub	—	—

Radar (3)

Name	NATO name	Air search	Surface search	Fire control
MRP-21 Zaliv-P		—	—	—
RLK-101 Albatros	Snoop Tray 1	—	Yes	—
Zavesa-P		—	—	—

Launchers (3)

Name	Tubes	Fire control	Max launch depth (m)
533mm Torpedo Tube (forward) 4 MVU-112 Ladoga-1V-RT 250 Asw 1972 - 1980: 2 x 53-65K , 4 x RPK-2 Vyuga (81R) , 2 x SAET-60M , 4 x SET-65M , 4 x TEST-71 1981 - 1985: 2 x 53-65K , 2 x SAET-60M , 4 x SET-65M , 4 x TEST-71 , 2 x URPK-6 Vodopad-PL (83R) , 2 x URPK-6 Vodopad-PL (84R) 1986 - present: 2 x 53-65K , 2 x SAET-60M , 4 x SET-65K , 4 x TEST-71MK , 2 x URPK-6 Vodopad-PL (83R) , 2 x URPK-6 Vodopad-PL (84R) Attack 1972 - 1980: 4 x 53-65K , 2 x RPK-2 Vyuga (81R) , 4 x SAET-60M , 3 x SET-65M , 3 x TEST-71 1981 - 1985: 4 x 53-65K , 4 x SAET-60M , 3 x SET-65M , 3 x TEST-71 , 1 x URPK-6 Vodopad-PL (83R) , 1 x URPK-6 Vodopad-PL (84R) 1986 - present: 4 x 53-65K , 4 x SAET-60M , 3 x SET-65K , 3 x TEST-71MK , 1 x URPK-6 Vodopad-PL (83R) , 1 x URPK-6 Vodopad-PL (84R) Mine 1972 - 1979: 1 x 53-65K , 1 x SAET-60M , 1 x SET-65M , 1 x TEST-71 1980 - 1980: 1 x 53-65K , 1 x SAET-60M , 1 x SET-65M , 1 x TEST-71 1981 - 1985: 1 x 53-65K , 1 x SAET-60M , 1 x SET-65M , 1 x TEST-71 1986 - present: 1 x 53-65K , 1 x SAET-60M , 1 x SET-65K , 1 x TEST-71MK
650mm Torpedo Tube (forward) 2 MVU-112 Ladoga-1V-RT 250 1972 - 1975: 6 x 65-73 1976 - present: 2 x 65-73 , 4 x 65-76
Signal Ejector	2	—	100

Extendable devices (7)

Name	NATO name	Capabilities	Max depth (m)	Max speed (kn)
Cypress Radio Antenna	—	Radio (VLF, LF, MF, HF, VHF), Radio navigation	—	7.5
MRK-50 Kaskad radar	—	Radar	—	7.5
MRP-21 Zaliv-P ESM	—	ESM	—	7.5
MT-70-8 Periscope (Television)	—	—	—	7.5
Orion-10 search periscope	—	Periscope (observation)	—	7.5
RCP	—	Snorkel	—	7.5
Zavesa-P RDF	—	Direction finder	—	7.5