Barbel

Barbel (1977)

Type	SS
Country	USA
Displacement (t)	2,637
Length (m)	66.9
Beam (m)	8.8
Draft (m)	7.6
Height (m)	8.8
Crew	85
Max speed submerged (kn)	18.5
Max speed surfaced (kn)	14.0
Max safe depth (m)	213
Endurance (days)	75
Propeller	1 x 5 bladed propeller
Diesel-electric	Yes
Titanium hull	No
Class year	1977

Sensors

Sonar (7)

Name	Type	Platform	Passive range (km)	Active range (km)
BQA-8B	cav	sub	—	—
BQR-2B	Hull	sub	1.3	—
BQS-4	Hull	sub	—	1.7
BSH-2	ssp	sub	—	—
DUUG-1	Active Intercept		—	—
UQG-1	com	sub	—	—
UQN-1B	Echo sounder	sub	—	—

Radar (3)

Name	NATO name	Air search	Surface search	Fire control
AN/WLR-1		—	—	—
BPS-12		—	Yes	—
BRD-6B		—	—	—

Launchers (2)

Name	Tubes	Fire control	Max launch depth (m)
533mm Torpedo Tube (forward) 6 Mk 101 Mod 20 215 1956 - 1959: 4 x Mk 16 Mod 1 , 8 x Mk 37 Mod 0 1960 - 1966: 4 x Mk 16 Mod 1 , 0 x Mk 37 Mod 0 , 8 x Mk 37 Mod 1 1967 - 1970: 4 x Mk 16 Mod 7 , 8 x Mk 37 Mod 2 , 0 x Mk 37 Mod 3 1971 - 1973: 12 x Mk 48 Mod 1 1974 - 1976: 12 x Mk 48 Mod 2 1977 - 1982: 12 x Mk 48 Mod 3 1983 - 1987: 12 x Mk 48 Mod 4 1988 - present: 12 x Mk 48 Mod 5 ADCAP
Signal Ejector	2	—	305

Extendable devices (10)

Name	NATO name	Capabilities	Max depth (m)	Max speed (kn)
AT-317B Radio Antenna	—	Radio (VLF)	—	7.5
BPS-12 Radar	—	Radar	—	7.5
BRA-19 Radio Antenna	—	—	—	7.5
BRA-9 Radio antenna	—	Radio (LF, MF, HF), Radio navigation	—	7.5
BRD-6B RDF	—	Direction finder	—	7.5
IFF	—	—	—	7.5
Snorkel	—	Snorkel	—	7.5
Type 2F Attack periscope	—	Periscope (attack)	—	7.5
Type 8D Search periscope	—	Periscope (observation)	—	7.5
WLR-1 ESM	—	ESM	—	7.5