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Nuclear submarine USS Louisiana (SSBN-743)

Nuclear submarine USS Louisiana (SSBN-743) 0Nuclear submarine USS Louisiana (SSBN-743) 1Nuclear submarine USS Louisiana (SSBN-743) 2Nuclear submarine USS Louisiana (SSBN-743) 3Nuclear submarine USS Louisiana (SSBN-743) 4Nuclear submarine USS Louisiana (SSBN-743) 5

Classification

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

Basic information

Namesake:
State of louisiana
Operator:
United States NavyUnited States Navy
Country of build:
Builder:
General Dynamics Electric Boat
Ordered:
Laid down:
Launched:
Commissioned (service):
Status:
Active

Ship measurements

Displacement:
16,764 t
Submerged displacement:
18,750 t
Length:
170 m
Beam:
13 m
Draft:
12 m

Machine

Propulsion:
  • 1 * S8G PWR nuclear reactor
  • 2 * geared turbines; 60,000 shp (45 MW)
  • 1 * Fairbanks Morse auxiliary diesel
  • 1 * 325 hp (242 kW) auxiliary motor
  • 1 * shaft with seven-bladed screw
Speed:
12 knots
Submerged speed:
25 knots
Test depth:
240 m

Personnel

Complement:
155

Combat assets

Electronics:
  • BQQ-6 passive bow-mounted array sonar (which includes BQS-13 array sonar)
  • BQR-23 conformal array sonar
  • BQR-15 towed array sonar
  • BQR-19 navigation sonar
  • BQS-15 under-ice/mine avoidance, target detection and tracking sonar
  • BPS-16 radar
  • WLR-10 threat warning system
  • WLR-8 receiver emulation
  • WLY-1 acoustic threat intercept system
Armament:
  • 24 * Trident II D5 SLBM with up to 12 MIRVed W76 or W88 (300–475 ktTNT) nuclear warheads each, range 6,100 nmi (11,300 km; 7,000 mi)
  • 4 * 21 inch (533 mm) Mark 48 torpedo tubes (Forward Compartment 4th level)

USS Louisiana (SSBN-743) is the 18th and last ship of the United States Navy's Ohio class of nuclear-powered fleet ballistic missile submarines. She carries Trident ballistic missiles and has been in commission since 1997. She is the fourth commissioned ship to bear the name of the U.S. state of Louisiana.

On Thursday August 18, 2016, USS Louisiana (SSBN 743) collided with the offshore support vessel USNS Eagleview (T-AGSE-3) while conducting normal operations in the Strait of Juan De Fuca. Both vessels returned to their respective home ports under their own power. Damage to the USS Louisiana was limited to her forward starboard hull.

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