SSN 688 Los Angeles

Los Angeles

SSN 688I Improved Los Angeles

Type	SSN
Country	USA
Displacement (t)	7,147
Length (m)	110.0
Beam (m)	10.0
Draft (m)	9.4
Height (m)	10.0
Max speed submerged (kn)	32.0
Max speed surfaced (kn)	15.0
Max safe depth (m)	229
Endurance (days)	90
Propeller	1 x 7 bladed propeller
Nuclear reactors	1
Titanium hull	No
Navigation system	SINS Mk 2 (Inertial Navigation System)
Class year	1988

Sensors

Sonar (10)

Name	Type	Platform	Passive range (km)	Active range (km)
BQA-8B	cav	sub	—	—
BQH-7	ssxbt	sub	—	—
BQN-17	Echo sounder	sub	—	—
BQQ-5E Active	Hull	sub	—	5.1
BQQ-5E Hull	Flank	sub	3.7	—
BQQ-5E Sphere	Spherical	sub	4.3	—
BQS-15	Mine detection	sub	—	0.9
TB-16D	Towed	sub	5.1	—
TB-23	Towed	sub	6.8	—
WLR-9	Active Intercept		—	—

Radar (1)

Name	NATO name	Air search	Surface search	Fire control
BPS-15A		—	Yes	—

Launchers (3)

Name	Tubes	Fire control	Max launch depth (m)
533mm Torpedo Tube (forward) 4 Mk 117 366 1976 - 1976: 20 x Mk 48 Mod 2 , 6 x UGM-84A Harpoon 1977 - 1982: 20 x Mk 48 Mod 3 , 6 x UGM-84A Harpoon 1983 - 1987: 20 x Mk 48 Mod 4 , 6 x UGM-84A Harpoon 1988 - present: 20 x Mk 48 Mod 5 ADCAP , 6 x UGM-84A Harpoon
CSA Mk 2	14	—	366
Missile Launcher 12 — 60 1988 - present: 1 x RGM-109A Tomahawk

Extendable devices (7)

Name	NATO name	Capabilities	Max depth (m)	Max speed (kn)
BPS-15 Radar	—	Radar	—	7.5
BRA-34 Radio Antenna 1	—	Radio (VLF, LF, MF, HF, VHF, UHF), Radio navigation, Navsat, Satcom	—	7.5
BRA-34 Radio Antenna 2	—	Radio (VLF, LF, MF, HF, VHF, UHF), Radio navigation, Navsat, Satcom	—	7.5
BRD-7/BLD-1 ESM	—	ESM, Direction finder	—	7.5
Snorkel	—	Snorkel	—	7.5
Type 18 search periscope	—	Periscope (observation)	—	7.5
Type 8 Mod 3 attack periscope	—	Periscope (attack)	—	7.5

Towed devices (1)

Name	Type	NATO name	Towed decoy	Capabilities	Cable (m)	Depth (m)	Speed (kn)
OE-315 HSBCA	Trailing wire	—	—	Receive, Transmit, Radio (VLF, LF, MF, HF, Radio navigation)	549	91 – 37	2.3 – 9.0