SSN 637 Sturgeon

SSN 637

SSN 637 Sturgeon (1967)

Type	SSN
Country	USA
Displacement (t)	4,780
Length (m)	89.1
Beam (m)	9.7
Draft (m)	7.4
Height (m)	9.7
Max speed submerged (kn)	25.0
Max speed surfaced (kn)	15.0
Max safe depth (m)	305
Endurance (days)	70
Nuclear reactors	1
Titanium hull	No
Class year	1967

Sensors

Sonar (9)

Name	Type	Platform	Passive range (km)	Active range (km)
BQQ-1 AIR	Active Intercept		—	—
BQQ-1B Active	Hull	sub	—	4.3
BQQ-1B Hull (BQR-7)	Flank	sub	2.6	—
BQQ-1B Sphere (BQS-6B)	Spherical	sub	2.6	—
BQS-14	Mine hunting	sub	—	0.9
BSH-2	ssp	sub	—	—
OMA	cav		—	—
UQG-1	com	sub	—	—
UQN-1B	Echo sounder	sub	—	—

Radar (1)

Name	NATO name	Air search	Surface search	Fire control
BPS-14		—	Yes	—

Launchers (2)

Name	Tubes	Fire control	Max launch depth (m)
533mm Torpedo Tube (forward) 4 Mk 113 Mod 6 305 1967 - 1970: 6 x Mk 16 Mod 8 , 14 x Mk 37 Mod 2 , 4 x UUM-44A SUBROC 1971 - 1973: 20 x Mk 48 Mod 1 , 4 x UUM-44A SUBROC 1974 - 1976: 20 x Mk 48 Mod 2 , 4 x UUM-44A SUBROC 1977 - 1982: 20 x Mk 48 Mod 3 , 4 x UUM-44A SUBROC 1983 - 1987: 20 x Mk 48 Mod 4 , 4 x UUM-44A SUBROC 1988 - present: 20 x Mk 48 Mod 5 ADCAP , 4 x UUM-44A SUBROC
Signal Ejector	2	—	305

Extendable devices (9)

Name	NATO name	Capabilities	Max depth (m)	Max speed (kn)
BPS-14 Radar	—	Radar	—	6.5
BRA-15 Radio Antenna	—	Radio (LF, MF, HF), Radio navigation	—	6.5
BRA-16 Radio Antenna	—	Radio (VLF), Radio navigation	—	6.5
BRD-6 RDF	—	Direction finder	—	6.5
SATCOM Antenna	—	Radio (UHF), Navsat, Satcom	—	6.5
Snorkel	—	Snorkel	—	6.5
Type 2D attack periscope	—	Periscope (attack)	—	6.5
Type 8 search periscope	—	Periscope (observation)	—	6.5
WLR-4 ESM	—	ESM, Radio navigation	—	6.5

Towed devices (1)

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