SSN 578 Skate

Skate

Type	SSN
Country	USA
Displacement (t)	2,848
Length (m)	81.6
Beam (m)	7.6
Draft (m)	6.5
Height (m)	7.6
Max speed submerged (kn)	18.0
Max speed surfaced (kn)	15.5
Max safe depth (m)	213
Endurance (days)	60
Propeller	2 x 4 bladed propellers
Nuclear reactors	1
Titanium hull	No
Navigation system	SINS Mk 2 (Inertial Navigation System)
Class year	1957

Sensors

Sonar (8)

Name	Type	Platform	Passive range (km)	Active range (km)
BQA-8	cav	sub	—	—
BQR-2B	Hull	sub	1.3	—
BQR-4	Hull	sub	2.0	—
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
BLD-1		—	—	—
BLR-1		—	—	—
BPS-12		—	Yes	—

Launchers (3)

Name	Tubes	Fire control	Max launch depth (m)
533mm Torpedo Tube (forward) 6 Mk 101 215 1956 - 1966: 6 x Mk 16 Mod 1 , 12 x Mk 37 Mod 0 1967 - present: 6 x Mk 16 Mod 7 , 12 x Mk 37 Mod 3
533mm Torpedo Tube (aft) 2 Mk 101 215 1956 - 1966: 2 x Mk 16 Mod 1 , 2 x Mk 37 Mod 0 1967 - present: 2 x Mk 16 Mod 7 , 2 x Mk 37 Mod 3
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
BLR-1 ESM	—	ESM	—	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