Project 971 Shchuka-B

Project 971

NATO: Akula I

Project 971 Shchuka-B

Type	SSN
Soviet designation	PLA
NATO reporting name	Akula I
Country	USSR
Displacement (t)	10,500
Length (m)	110.3
Beam (m)	13.8
Draft (m)	9.9
Height (m)	13.8
Max speed submerged (kn)	33.3
Max speed surfaced (kn)	20.0
Max safe depth (m)	439
Endurance (days)	80
Nuclear reactors	1
Titanium hull	No
Class year	1985

Sensors

Sonar (10)

Name	Type	Platform	Passive range (km)	Active range (km)
MG-512 Vint-M	cav	sub	—	—
MG-518 Sever	Echo sounder	sub	—	—
MG-519	Mine hunting	sub	—	1.5
MG-553 Zhgut-M	ssp		—	—
MGK-540 Skat-3 Active	Hull	sub	—	5.1
MGK-540 Skat-3 AIR	Active Intercept		—	—
MGK-540 Skat-3 Cylindrical	Cylindrical	sub	3.4	—
MGK-540 Skat-3 Flank	Flank	sub	3.8	—
MGK-540 Skat-3 Towed	Towed	sub	4.7	—
SOKS-3	Non-acoustic		—	—

Radar (3)

Name	NATO name	Air search	Surface search	Fire control
MRKP-58 Radian		—	Yes	—
MRKP-58 Radian ESM		—	—	—
Zone		—	—	—

Launchers (3)

Name	Tubes	Fire control	Max launch depth (m)
533mm Torpedo Tube (forward) 4 — 1,000 1984 - 1985: 6 x TEST-71M , 2 x URPK-6 Vodopad-PL (83R) , 2 x URPK-6 Vodopad-PL (84R) , 14 x USET-80 , 2 x VA-111 Shkval 1986 - present: 2 x 3M10 Granat , 6 x TEST-71MK , 2 x URPK-6 Vodopad-PL (83R) , 2 x URPK-6 Vodopad-PL (84R) , 12 x USET-80 , 2 x VA-111 Shkval
650mm Torpedo Tube (forward) 4 — 1,000 1984 - present: 2 x 65-73 , 6 x 65-76 , 2 x URPK-7 Veter (86R) , 2 x URPK-7 Veter (88R)
Signal Ejector	2	—	100

Extendable devices (8)

Name	NATO name	Capabilities	Max depth (m)	Max speed (kn)
Anis Radio Antenna	—	Radio (LF, MF, HF), Radio navigation	—	6.5
Kora Radio Antenna	—	Radio (VLF, LF), Radio navigation	—	6.5
MRKP-58 Radian Radar	—	Radar, ESM	—	6.5
RCP	—	Snorkel	—	6.5
Signal-3 search periscope	—	Periscope (observation)	—	6.5
Sintez satcom/nav	—	Radio (UHF), Navsat, Satcom	—	6.5
Swan-21 attack periscope	—	Periscope (attack)	—	6.5
Zone RDF	—	Direction finder	—	6.5