Project 971 Shchuka-B

Project 971

NATO: Akula I

Project 971 (Mod 1)

Type	SSN
Soviet designation	PLA
NATO reporting name	Akula I (Improved)
Country	USSR
Displacement (t)	10,500
Length (m)	113.1
Beam (m)	13.8
Draft (m)	9.9
Height (m)	13.8
Max speed submerged (kn)	33.3
Max speed surfaced (kn)	11.2
Max safe depth (m)	439
Endurance (days)	80
Propeller	1 x 7 bladed propeller
Nuclear reactors	1
Titanium hull	No
Navigation system	Simphoniya-U (Inertial Navigation System)
Class year	1990

Sensors

Sonar (10)

Name	Type	Platform	Passive range (km)	Active range (km)
MG-35 Shtil	com		—	—
MG-512 Vint-M	cav	sub	—	—
MG-518 Sever	Echo sounder	sub	—	—
MG-519	Mine detection	sub	—	1.5
MG-553 Zhgut-M	ssp		—	—
MGK-540 Skat-3 Active	Hull	sub	—	5.1
MGK-540 Skat-3 Cylindrical	Cylindrical	sub	3.4	—
MGK-540 Skat-3 Flank	Flank	sub	3.8	—
MGK-540 Skat-3 OGS	Active Intercept		—	—
MGK-540 Skat-3 Towed	Towed	sub	4.7	—

Launchers (4)

Name	Tubes	Fire control	Max launch depth (m)
533mm Torpedo Tube (forward) 4 — 1,000 Asw 1984 - 1985: 2 x 53-65K , 2 x SAET-60M , 2 x TEST-71M , 1 x URPK-6 Vodopad-PL (83R) , 1 x URPK-6 Vodopad-PL (84R) , 16 x USET-80 , 2 x VA-111 Shkval 1986 - present: 2 x 3M10 Granat , 2 x 53-65K , 2 x SAET-60M , 2 x TEST-71MK , 1 x URPK-6 Vodopad-PL (83R) , 1 x URPK-6 Vodopad-PL (84R) , 16 x USET-80 Attack 1984 - 1985: 4 x 53-65K , 4 x SAET-60M , 2 x TEST-71M , 1 x URPK-6 Vodopad-PL (83R) , 1 x URPK-6 Vodopad-PL (84R) , 12 x USET-80 , 2 x VA-111 Shkval 1986 - present: 2 x 3M10 Granat , 4 x 53-65K , 4 x SAET-60M , 2 x TEST-71MK , 1 x URPK-6 Vodopad-PL (83R) , 1 x URPK-6 Vodopad-PL (84R) , 12 x USET-80
533mm Torpedo Tube (forward)	6	—	1,000
650mm Torpedo Tube (forward) 4 — 1,000 Asw 1984 - present: 1 x 65-73 , 4 x 65-76 , 5 x URPK-7 Veter (86R) , 2 x URPK-7 Veter (88R) Attack 1984 - present: 2 x 65-73 , 8 x 65-76 , 1 x URPK-7 Veter (86R) , 1 x URPK-7 Veter (88R)
VIPS	2	—	100