Project 671 Yorsh

Project 671

NATO: Victor I

Project 671 Yorsh

Type	SSN
Soviet designation	PLA
NATO reporting name	Victor I
Country	USSR
Displacement (t)	4,690
Length (m)	93.0
Beam (m)	10.6
Draft (m)	7.2
Height (m)	10.6
Max speed submerged (kn)	33.5
Max speed surfaced (kn)	11.5
Max safe depth (m)	320
Endurance (days)	50
Propeller	1 x 5 bladed propeller
Nuclear reactors	2
Titanium hull	No
Navigation system	Sigma (Automatic Dead Reckoning)
Class year	1968

Sensors

Sonar (8)

Name	Type	Platform	Passive range (km)	Active range (km)
MG-25	com	sub	—	—
MG-43 Gorizont	ssp		—	—
MG-509 Radian	Mine detection	sub	—	1.3
MGK-300 Rubin Active	Hull	sub	—	4.3
MGK-300 Rubin Cylindrical	Cylindrical	sub	1.7	—
MGK-300 Rubin flank array	Flank	sub	2.1	—
MGK-300 Rubin 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 (2)

Name	Tubes	Fire control	Max launch depth (m)
533mm Torpedo Tube (forward) 6 Ladoga-2 250 1967 - 1967: 0 x 53-56 , 1 x 53-56N , 0 x 53-57 , 1 x 53-61 , 1 x SAET-60 , 3 x SET-65 1968 - 1968: 0 x 53-56 , 1 x 53-56N , 0 x 53-57 , 1 x 53-61 , 1 x SAET-60 , 1 x SET-65M , 2 x TEST-68 1969 - 1970: 1 x 53-65K , 1 x SAET-60M , 2 x SET-65M , 2 x TEST-68 1971 - 1971: 1 x 53-65K , 1 x SAET-60M , 1 x SET-65M , 1 x TEST-68 , 2 x TEST-71 1972 - present: 1 x 53-65K , 1 x SAET-60M , 1 x SET-65M , 2 x TEST-71 Asw 1967 - 1967: 1 x 53-56N , 3 x 53-61 , 2 x SAET-60 , 12 x SET-65 1968 - 1968: 1 x 53-56N , 2 x 53-61 , 2 x SAET-60 , 8 x SET-65M , 5 x TEST-68 1969 - 1970: 3 x 53-65K , 2 x SAET-60M , 8 x SET-65M , 5 x TEST-68 1971 - 1971: 3 x 53-65K , 2 x SAET-60M , 6 x SET-65M , 2 x TEST-68 , 5 x TEST-71 1972 - present: 2 x 53-65K , 4 x SAET-60M , 6 x SET-65M , 4 x TEST-71 Attack 1967 - 1967: 1 x 53-56N , 6 x 53-61 , 5 x SAET-60 , 6 x SET-65 1968 - 1968: 1 x 53-56N , 6 x 53-61 , 5 x SAET-60 , 4 x SET-65M , 2 x TEST-68 1969 - 1970: 7 x 53-65K , 5 x SAET-60M , 4 x SET-65M , 2 x TEST-68 1971 - 1971: 7 x 53-65K , 5 x SAET-60M , 3 x SET-65M , 1 x TEST-68 , 2 x TEST-71 1972 - present: 6 x 53-65K , 4 x SAET-60M , 4 x SET-65M , 2 x TEST-71
VIPS	2	—	250

Extendable devices (6)

Name	NATO name	Capabilities	Max depth (m)	Max speed (kn)
Iva-MV 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
Orion-10 search periscope	—	Periscope (observation)	—	7.5
RCP	—	Snorkel	—	7.5
Zavesa-P RDF	—	Direction finder	—	7.5