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Nuclear submarine USS John Adams (SSBN-620)

Nuclear submarine USS John Adams (SSBN-620) 0Nuclear submarine USS John Adams (SSBN-620) 1Nuclear submarine USS John Adams (SSBN-620) 2Nuclear submarine USS John Adams (SSBN-620) 3Nuclear submarine USS John Adams (SSBN-620) 4

Classification

Ship class:
Lafayette-class submarine
Type:
Ballistic missile submarine (SSB, SSBN)

Basic information

Namesake:
John Adams (1735-1826), second President of the United States (1797-1801), and John Quincy Adams (1767-1848), sixth President of the United States (1825-1829).
Operator:
United States NavyUnited States Navy
Country of build:
Builder:
Portsmouth Naval Shipyard
Ordered:
Laid down:
Launched:
Commissioned (service):
Decommissioned (out):
Status:
Decommissioned

Ship measurements

Displacement:
7,370 t
Submerged displacement:
8,380 t
Length:
130 m
Beam:
10 m
Draft:
9.6 m

Machine

Propulsion:
  • 1 * S5W PWR nuclear reactor
  • 2 * geared steam turbines (15,000 shp (11,000 kW))
  • 1 * shaft
Speed:
20 knots
Submerged speed:
25 knots
Test depth:
400 m

Personnel

Complement:
143

Combat assets

Electronics:
  • BQS-4 sonar
  • BQR-7 passive detecting-ranging sonar
  • BQR-19 navigation
  • BQR-15 Signal Processing and Display (SPAD) towed array
  • SINS Mk2 ship's inertial navigation system
Armament:
  • 16 * Polaris A2/A3 or Poseidon C3 missiles
  • 4 * 21 inch (533 mm) Mark 65 torpedo tubes with Mark 113 firecontrol system (12 * Mark 48 torpedoes)

USS John Adams (SSBN-620), a Lafayette-class ballistic missile submarine, was the second ship of the United States Navy to be named for John Adams (1735-1826), the second President of the United States (1797-1801), and his son John Quincy Adams (1767-1848), the sixth President of the United States (1825-1829). Both names were used with the captains of the Blue and Gold crews alternately using the names John Adams and John Quincy Adams.

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