USS Ingersoll (DD-990)

Career (US)
Namesake:	Royal E. Ingersoll
Ordered:	15 January 1975
Builder:	Ingalls Shipbuilding
Laid down:	5 December 1977
Launched:	10 March 1979
Acquired:	March 24, 1980
Commissioned:	12 April 1980
Decommissioned:	24 July 1998
Struck:	24 July 1998
Fate:	Sunk as a target, 29 July 2003
General characteristics
Class and type:	Spruance class destroyer
Displacement:	8,040 (long) tons full load
Length:	529 ft (161 m) waterline; 563 ft (172 m) overall
Beam:	55 ft (16.8 m)
Draft:	29 ft (8.8 m)
Propulsion:	4 × General Electric LM2500 gas turbines, 2 shafts, 80,000 shp (60 MW)
Speed:	32.5 knots (60 km/h)
Range:	6,000 nautical miles (11,000 km; 6,900 mi) at 20 knots (37 km/h; 23 mph) 3,300 nautical miles (6,100 km; 3,800 mi) at 30 knots (56 km/h; 35 mph)
Complement:	19 officers, 315 enlisted
Sensors and processing systems:	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 Mk 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
Electronic warfare and decoys:	• AN/SLQ-32 Electronic Warfare System • AN/SLQ-25 Nixie Torpedo Countermeasures • Mark 36 SRBOC Decoy Launching System • AN/SLQ-49 Inflatable Decoys
Armament:	2 x 5 in (127 mm) 54 calibre Mark 45 dual purpose guns 2 x 20 mm Phalanx CIWS Mark 15 guns 1 x 8 cell ASROC launcher (removed) 1 x 8 cell NATO Sea Sparrow Mark 29 missile launcher 2 x quadruple Harpoon missile canisters 2 x Mark 32 triple 12.75 in (324 mm) torpedo tubes (Mk 46 torpedoes) 2 x quadruple ABL Mark 43 Tomahawk missile launchers
Aircraft carried:	2 x Sikorsky SH-60 Seahawk LAMPS III helicopters.
Motto:	Cognitus Eventu (Known By The Results)

For other ships of the same name, see USS Ingersoll.

USS Ingersoll (DD-990), a Spruance-class destroyer, was the second U.S. Navy ship to be named USS Ingersoll; in this case, in honor of Admiral Royal E. Ingersoll (1883–1976), who served as CINC, Atlantic Fleet during most of World War II.

Ingersoll was laid down on 5 December 1977 by Ingalls Shipbuilding, Pascagoula, Miss.; launched on 10 March 1979; and commissioned on 12 April 1980, Commander E. R. Fickenscher III in command.

Ingersoll was first homeported in San Diego, CA, then Long Beach, CA (for overhaul) and then Pearl Harbor.

Ingersoll was one of the first US Navy ships to receive the Armored Box Launcher (ABL) version of the Tomahawk cruise missile system in 1985. This early variant of the missile system held up to four missiles in each of two canisters located directly forward of the pilothouse on the fore deck. Unfortunately, this system proved to be very heavy and affected the ship's seakeeping. The much more capable Vertical Launch missile system (VLS) quickly made the ABL obsolete.

Collision

On 20 June 1992 while transiting the Straights of Malacca, Ingersoll collided with the M/V Matsumi Maru No. 7, a Pakistani oil tanker. Flooding was minimal and the ship was able to reach port in Singapore. After temporary repairs, Ingersoll returned to Pearl Harbor where it completed repairs and began overhaul.

Fate

Though Ingersoll was one of the newest ships of the Spruance class, it was one of the earliest to be decommissioned. The cost to remove the ABL system and retrofit the VLS system likely contributed to the ship's early decommissioning. Ingersoll was decommissioned and stricken from the Navy list on 24 July 1998. She was sunk as a target on 29 July 2003.

References

• This article includes information collected from the Naval Vessel Register, which, as a U.S. government publication, is in the public domain. The entry can be found here.

External links

• navsource.org: USS Ingersoll
• navysite.de: USS Ingersoll
• Ingersoll veterans website