GUPPY

GUPPY IIA

Type	SS
Country	USA
Displacement (t)	2,440
Length (m)	94.9
Beam (m)	8.3
Draft (m)	4.7
Height (m)	8.3
Max speed submerged (kn)	15.0
Max speed surfaced (kn)	17.0
Max safe depth (m)	122
Endurance (days)	75
Propeller	2 x 5 bladed propellers
Diesel-electric	Yes
Titanium hull	No
Class year	1955

Sensors

Sonar (8)

Name	Type	Platform	Passive range (km)	Active range (km)
BQR-2B	Hull	sub	1.3	—
BQR-3A	Hull	surf	0.9	—
BQS-2	Mine detection	sub	—	0.9
BQS-2	Mine detection	sub	—	0.9
BSH-2	ssp	sub	—	—
DUUG-1	Active Intercept		—	—
OMA-1	cav	sub	—	—
UQN-1B	Echo sounder	sub	—	—

Radar (3)

Name	NATO name	Air search	Surface search	Fire control
AN/BLR-1		—	—	—
AN/SRD-7		—	—	—
BPS-4		—	Yes	—

Launchers (3)

Name	Tubes	Fire control	Max launch depth (m)
533mm Torpedo Tube (forward) 6 Mk 106 305 1962 - 1966: 8 x Mk 16 Mod 1 , 8 x Mk 37 Mod 0 1967 - present: 8 x Mk 16 Mod 7 , 8 x Mk 37 Mod 3
533mm Torpedo Tube (aft) 4 Mk 106 305 1962 - 1966: 4 x Mk 16 Mod 1 , 4 x Mk 37 Mod 0 1967 - present: 4 x Mk 16 Mod 7 , 4 x Mk 37 Mod 3
Signal Ejector	2	—	305

Extendable devices (8)

Name	NATO name	Capabilities	Max depth (m)	Max speed (kn)
BLR-1 ESM	—	ESM	—	7.5
BPS-5A Radar	—	Radar	—	7.5
BRA-9 Radio antenna	—	Radio (LF, MF, HF), Radio navigation	—	7.5
BRD-6B RDF	—	Direction finder	—	7.5
BRR Radio Antenna	—	Radio (VLF)	—	7.5
Snorkel	—	Snorkel	—	7.5
Type 2F Attack periscope	—	Periscope (attack)	—	7.5
Type 8D Search periscope	—	Periscope (observation)	—	7.5