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Guided missile destroyer USS Ralph Johnson (DDG-114)

Guided missile destroyer USS Ralph Johnson (DDG-114) 0Guided missile destroyer USS Ralph Johnson (DDG-114) 1Guided missile destroyer USS Ralph Johnson (DDG-114) 2Guided missile destroyer USS Ralph Johnson (DDG-114) 3

Classification

Ship class:
Arleigh Burke-class destroyer
Type:
Guided missile destroyer

Basic information

Namesake:
Ralph H. Johnson
Operator:
United States NavyUnited States Navy
Country of build:
Builder:
Ingalls ShipbuildingIngalls Shipbuilding
Ordered:
Laid down:
Launched:
Commissioned (service):
Status:
Active
MMSI number:
368926268

Ship measurements

Displacement:
9,500 t
Length:
155.29 m
Beam:
20 m
Draft:
9.4 m

Machine

Propulsion system:
CODLAG (CODELAG)
Propulsion:
  • 3 * Allison AG9140 Generators (2,500 kW (3,400 hp) each, 440 V)
  • 4 * General Electric LM2500 gas turbines each generating 26,250 bhp (19,570 kW)
  • 2 * shafts, each driving a five-bladed reversible controllable-pitch propeller
  • Total output: 105,000 bhp (78,000 kW)
Speed:
30 knots
Range:
4,400 nautical miles at 20 knots (8,100 km at 37 km/h)

Personnel

Complement:
323

Combat assets

Boats & landing craft:
  • 2 * RHIB
Electronics:
  • AN/SPY-1D 3D radar
  • AN/SPS-67(V)2 surface-search radar
  • AN/SPS-73(V)12 surface-search radar
  • AN/SPG-62 fire-control radar
  • AN/SQS-53C sonar array
  • AN/SQR-19 tactical towed array sonar
  • AN/SQQ-28 LAMPS III shipboard system
  • AN/SLQ-32(V)3 Electronic Warfare System
  • AN/SLQ-25 Nixie Torpedo Countermeasures
  • MK 36 MOD 12 Decoy Launching System
  • MK 53 Nulka Decoy Launching System
  • AN/SLQ-39 CHAFF Buoys
Armament:
  • 1 * 5-inch (127 mm)/62 Mk. 45 Mod 4 (lightweight gun)
  • 1 * 20 mm Phalanx CIWS
  • 2 * 25 mm M242 Bushmaster chain gun
  • 96-cell Mk. 41 Vertical Launching System (VLS)
  • BGM-109 Tomahawk Land Attack Missile
  • RIM-66M Surface-to-Air Missile with an ASuW mode
  • RIM-156 Surface-to-Air Missile
  • RIM-161 Anti-Ballistic Missile
  • RIM-162 ESSM quadpacked configuration
  • RUM-139 Vertical Launch ASROC
  • RIM-174A Standard ERAM
  • 2 * Mark 32 triple torpedo tubes:
  • Mark 46 torpedo
  • Mark 50 torpedo
  • Mark 54 Lightweight Torpedo
Aircraft:
  • 2 * SH-60 Seahawk LAMPS III helicopters
  • Aviation facilities:
  • Flight deck and enclosed hangars for two MH-60R LAMPS III helicopters

USS Ralph Johnson (DDG-114) is an Arleigh Burke-class (Flight IIA Restart) Aegis guided missile destroyer of the United States Navy. Ralph Johnson is the 64th ship of the class and was commissioned on 24 March 2018.

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