Project 629

NATO: Golf

Project 629R

Type	SSB
Soviet designation	PLRB
NATO reporting name	Golf I Mod. SSQ
Country	USSR
Displacement (t)	3,550
Length (m)	98.9
Beam (m)	8.2
Draft (m)	8.1
Height (m)	8.2
Max speed submerged (kn)	12.5
Max speed surfaced (kn)	14.5
Max safe depth (m)	200
Endurance (days)	70
Propeller	3 x 6 bladed propellers
Diesel-electric	Yes
Titanium hull	No
Navigation system	Most-V-629R (Inertial Navigation System)
Class year	1976

Sensors

Sonar (6)

Name	Type	Platform	Passive range (km)	Active range (km)
Beresta	ssp		—	—
MG-10 Kola	Cylindrical	sub	0.9	—
MG-13 Svet	Active Intercept		—	—
MG-15	com	sub	—	—
MG-200 Arktika	Hull	sub	—	1.3
NEL-5	Echo sounder	sub	—	—

Radar (3)

Name	NATO name	Air search	Surface search	Fire control
MRP-10 Nakat		—	—	—
PR-1		—	—	—
RLK-101 Albatros	Snoop Tray 1	—	Yes	—

Launchers (3)

Name	Tubes	Fire control	Max launch depth (m)
533mm Torpedo Tube (forward) 4 — 100 1959 - 1963: 1 x 53-56N , 1 x SAET-50M , 2 x SET-53 1964 - present: 1 x 53-56N , 1 x SAET-60 , 2 x SET-53M
533mm Torpedo Tube (aft) 2 — 100 1959 - 1963: 1 x 53-56N , 1 x SAET-50M 1964 - present: 1 x 53-56N , 1 x SAET-60
Signal Ejector	2	—	100

Extendable devices (8)

Name	NATO name	Capabilities	Max depth (m)	Max speed (kn)
Flag Radar	—	Radar	—	7.5
Lira-1 Search periscope	—	Periscope (observation)	—	7.5
MRP-10 Nakat ESM	—	ESM	—	7.5
PR-1 RDF	—	Direction finder	—	7.5
PR-14 Astrocorrector periscope	—	Periscope (astro)	—	7.5
PZN-9 Attack periscope	—	Periscope (attack)	—	7.5
Snorkel	—	Snorkel	—	7.5
VAN Radio antenna	—	Radio (LF, MF, HF), Radio navigation	—	7.5

Towed devices (1)

Name	Type	NATO name	Towed decoy	Capabilities	Cable (m)	Depth (m)	Speed (kn)
VVABT Paravan	Trailing buoy	—	—	Receive, Radio (VLF)	300	150 – 50	3.0 – 12.0

Notes

Not clear which passive sonar Project 629 is using, maybe Feniks or Tuloma? (Project 629A and 692B use MG-10)