Destroyer USS Ingersoll (DD-990)

Destroyer USS Ingersoll (DD-990) 0Destroyer USS Ingersoll (DD-990) 1Destroyer USS Ingersoll (DD-990) 2Destroyer USS Ingersoll (DD-990) 3



Basic information

Country of build:
Laid down:
Commissioned (service):
Decommissioned (out):
Sunk as target, 29 July 2003

Ship measurements

8,040 t
161 m
16.8 m
8.8 m


Propulsion system:
  • 4 * General Electric LM2500 gas turbines
  • 2 * shafts, 80,000 shp (60 MW)
32.5 knots
6,000 nautical miles (11,000 km; 6,900 mi) at 20 knots (37 km/h; 23 mph)



Combat assets

  • AN/SPS-40 air search radar
  • AN/SPG-60 fire control radar
  • AN/SPS-55 surface search radar
  • AN/SPQ-9 gun fire control radar
  • Mark 23 TAS automatic detection and tracking radar
  • AN/SPS-65 Missile fire control radar
  • AN/SQS-53 bow mounted Active sonar
  • AN/SQR-19 TACTAS towed array Passive sonar
  • Naval Tactical Data System
  • AN/SLQ-32 Electronic Warfare System
  • AN/SLQ-25 Nixie Torpedo Countermeasures
  • Mark 36 SRBOC Decoy Launching System
  • AN/SLQ-49 Inflatable Decoys
  • 2 * 5 in (127 mm) 54 calibre Mark 45 dual purpose guns
  • 2 * 20 mm Phalanx CIWS Mark 15 guns
  • 1 * 8 cell ASROC launcher (removed)
  • 1 * 8 cell NATO Sea Sparrow Mark 29 missile launcher
  • 2 * quadruple Harpoon missile canisters
  • 2 * Mark 32 triple 12.75 in (324 mm) torpedo tubes (Mk 46 torpedoes)
  • 2 * quadruple Armored Box Launcher (ABL) Mark 43 Tomahawk missile launchers
  • 2 * Sikorsky SH-60 Seahawk LAMPS III helicopters

The USS Ingersoll (DD-990), a destroyer belonging to the Spruance class, marked the second U.S. Navy vessel to carry the name USS Ingersoll, this time in tribute to Admiral Royal E. Ingersoll (1883–1976), who served as CINC, Atlantic Fleet for a significant part of World War II.

Construction of Ingersoll commenced on 5 December 1977 at Ingalls Shipbuilding in Pascagoula, Miss. It was launched on 10 March 1979 and officially commissioned on 12 April 1980.

Initially stationed in San Diego, CA, Ingersoll later underwent an overhaul in Long Beach, CA, before finally being homeported in Pearl Harbor.

In 1985, Ingersoll became one of the pioneering US Navy vessels to receive the Armored Box Launcher iteration of the Tomahawk cruise missile system. This earlier version accommodated up to four missiles in each of two canisters positioned directly ahead of the pilothouse on the fore deck. However, the system's substantial weight significantly affected the ship's stability, leading to the much more efficient Vertical Launch missile system replacing the obsolete Armored Box Launcher.

On 20 June 1992, while navigating the Straits of Malacca, Ingersoll collided with M/V Matsumi Maru No. 7, a Pakistani oil tanker. Despite minimal flooding, Ingersoll managed to reach the port in Singapore. Temporary repairs were undertaken before the ship returned to Pearl Harbor for comprehensive repairs and overhaul.

Despite being among the newer ships in the Spruance class, Ingersoll was one of the first to be decommissioned. The expenses involved in removing the Armored Box Launcher system and retrofitting the Vertical Launching System likely contributed to the ship's premature decommissioning. Ingersoll was decommissioned and removed from the Navy Directory on 24 July 1998. It was ultimately sunk as a target on 29 July 2003, situated north-northwest of Kauai, Hawaii, at coordinates 023°02′N 160°04′W.

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