AEGIS Cruiser (CG 47 Class)

Product Type:

AEGIS Missile Cruiser

Service (US):


Program Status:

In service but no longer in production.
Currently undergoing modernization.

Prime Contractors:

General Dynamics (Bath Iron Works)
Huntington Ingalls Industries

The AEGIS Missile Cruiser

About the AEGIS Cruiser:

The CG 47 Ticonderoga Class AEGIS Cruiser is a multi-mission guided missile cruiser designed to perform Anti-Air Warfare (AAW), Undersea Warfare (USW), Naval Surface Fire Support (NSFS), and Anti-Surface Warfare (ASuW) missions. The AEGIS Cruiser operates independently or as units of carrier strike groups and surface action groups. The class was named for the capture of Fort Ticonderoga in 1775 during the American Revolutionary War and most of the ships in the Ticonderoga class are named to commemorate key battles in U.S. history.

The Ticonderoga Class ships are powered by four General Electric LM2500 marine gas simple-cycle high-performance turbine engines, each delivering 20,000 shp. The LM2500 is derived from the GE CF6 turbofan aircraft engine.

First intended as a guided missile destroyer, the contract to build the first DDG 47 Ticonderoga Class (USS Ticonderoga) was awarded to Ingalls Shipbuilding (Huntington Ingalls Industries) in September 1978. In January 1980, the program was modified and USS Ticonderoga (and future ships) were redesignated as guided missile cruisers (CG 47 Class). The keel of the first ship was laid down on January 21, 1980, and the ship was launched in April 1981 and delivered to the U.S. Navy in December 1982. The last Ticonderoga Class AEGIS Cruiser, the USS Port Royal (CG 73), was comissioned on July 9, 1994. Of the 27 ships built, nineteen were built by Ingalls Shipbuilding (Huntington Ingalls Industries) and eight by Bath Iron Works (General Dynamics).

The AEGIS Cruiser is equipped with two SH-60B Seahawk LAMPS III (Light Airborne Multipurpose System Mk III) surface warfare (SUW) and anti-submarine warfare (ASW) helicopters (the SH-60B will be replaced by the MH-60R Seahawk). The first two ships of the class had two Kaman SH-2 Seasprite helicopters.

The CG 47 Class is an important component of the AEGIS Ballistic Missile Defense (BMD) System, where it - together with Arleigh Burke Class Missile Destroyers (DDG 51) - patrols the oceans to detect and track ballistic missiles of all ranges, including Intercontinental Ballistic Missiles (ICBM). The tracking data is then reported to the U.S. Ballistic Missile Defense System (BMDS). The AEGIS Cruiser can also operate in concert with the Navy's carrier-based E-2C/D Advanced Hawkeye AEW&C aircraft. The E-2 is designed to detect missile launches and alert AEGIS Cruisers + provide continuous cueing information until the missile has been intercepted and destroyed.

At the core of CG 47 shipboard systems is the Lockheed Martin-developed AEGIS Combat System, an integrated missile guidance system used on U.S. Navy and allied ships. The system operates as an integrated single ship system, as well as in ship-to-ship networks. The key component of the AEGIS Combat System is the Raytheon AN/SPY-1B maritime radar. The role of the radar is to acquire and track targets such as planes and missiles and defend against them. Other electronic systems onboard include the Lockheed Martin AN/SQQ-89(V) Undersea Warfare / Anti-Submarine Warfare Combat System, the Raytheon AN/SLQ-32(V) Shipboard Electronic Warfare (EW) System, and the AN/SPQ-9B multi-purpose surface search and fire control radar.

The lead ship of the class, USS Ticonderoga (CG 47) and CGs 48 to 51 were decommissioned in 2004 and 2005 and the DoD will decommission another 7 cruisers in the 2013 to 2015 time frame.

The U.S. Navy is currently modernizing Ticonderoga Class ships. The last ships will be modified and upgraded in FY 2015. The program provides a structured modernization to ensure that the AEGIS Cruisers reach their projected 35-year service life. The program will improve the CG 47 Ticonderoga class by modernizing the computing and display infrastructure, and the Hull, Mechanical and Electrical (HM&E) systems. Weapons and sensor systems will have their anti-submarine capabilities upgraded and short range electro-optical (E/O) systems that can monitor the ship's surroundings without the use of radar will be added. Other modifications include routine machinery upgrades to improve all areas of ship functionality. The modernized ships are expected to be more cost efficient to operate and their lives are extended to serve in the fleet through 2030.

Armament/Ship Self-Defense:

The AEGIS Cruiser is equipped with two Mk 41 Vertical Launching Systems (VLS) that accommodate a total of 122 Standard Missile (SM-2/SM-6), Standard Missile (SM-3), RUM-139 VL-ASROC, and RGM-109E Tactical Tomahawk missiles. The ships are also equipped with two 5-inch Mk 45 127mm guns that provide surface fire support to forces on land and + an anti-ship gun capability; two Raytheon Mk 15 Phalanx 20mm Close In Weapon Systems (CIWS); two Mk 32 triple 324mm torpedo tubes with a total of six Mk 46/50/54 torpedoes; and three .50 caliber (12.7mm) machine guns. For more detail, see specifications below.


The CG 47 AEGIS Cruiser provides an Anti-Air Warfare
(AAW), Undersea Warfare (USW), Naval Surface Fire Support (NSFS), and Surface Warfare (SUW) capability. AEGIS cruisers operate independently or as units of Carrier Battle Groups and Surface Action Groups, in support of the Marine Amphibious Task Forces in multi-threat environments that include air, surface and subsurface threats.

FY 2014 DoD Program:

FY 2014 provides funds in the amount of $10.5M for continued modifications to AEGIS Cruisers under the CG Modernization program.

For more information, click to see the Complete FY 2014 CG 47 Class DoD Budget.

FY 2015 DoD Program:

No funds provided for the AEGIS Cruiser in FY 2015.

Source: U.S. Department of Defense (DoD), General Dynamics BIW,
Lockheed Martin, and Raytheon.

Specifications Armament DoD Spending FY2015 Budget

Last Update: June 17, 2014.

By Joakim Kasper Oestergaard /// (

External Resources:

Bath Iron Works: ------------------------------------------

Lockheed Martin: AEGIS Combat System
Raytheon: AN/SPY-1 Maritime Radar
General Electric: LM2500 Marine Engine

YouTube: AEGIS Cruiser | YouTube Videos

Fact Sheet: Not Available

CG 47 Photos:

CG 47 U.S. Defense Spending:

DoD Spending on the CG-47 Ticonderoga Class AEGIS Cruiser in FY 2011, FY 2012, FY 2013, FY 2014 and FY 2015
DoD Purchases of CG-47 Ticonderoga Class AEGIS Cruisers in FY 2011, FY 2012, FY 2013, FY 2014 and FY 2015
Defense Budget Data

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DoD Spending, Procurement and RDT&E: FY 2011/12/13 + Budget for FYs 2014 + 2015

DoD Defense Spending, Procurement, Modifications, Spares, and RDT&E for the CG 47 Ticonderoga Class AEGIS Cruiser

Download Official U.S. Department of Defense (DoD) Budget Data:

Modifications | CG Modernization (NAVY-FY2014)

Specifications: CG 47 Ticonderoga Class AEGIS Cruiser

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Primary Function: Anti-Air Warfare (AAW), Undersea Warfare (USW),
Naval Surface Fire Support (NSFS), and Anti-Surface Warfare (ASuW)
Prime Contractor: Huntington Ingalls: CGs 47-50, CG 52-57, 59, 62, 65-66, 68-69, and 71-73;
General Dynamics (Bath Iron Works) (CGs 51, 58, 60-61, 63-64, 67, and 70)
Hull: All-steel hull
Propulsion: 4x General Electric LM 2500 gas turbines with two shafts and 80,000 total hp
Propellers: Two (with 5 blades each)
Length: 567 ft (173 meters)
Beam: 55 ft (16.8 m)
Draft: 23 ft (7 m)
Full Load Displacement: 9,600 tons (9,750 metric tons)
Speed: 30+ kts/ 35+ mph (56+ km/h)
Range: 6,000 nm/6,900 miles (11,100 km) at 20 kts
Aircraft: 2x SH-60B Seahawk helicopters (will be replaced by the MH-60R Seahawk)
Armament/Ship Self-Defense:
2x Mk 26 Missile Launcher (CGs 47 through 51 - Note: These vessels have been decomissioned);
2x Mk 41 Vertical Launching System (VLS) (CGs 52 through 73);
1x Mk 41 61-cell Vertical Launching System (VLS) forward;
1x Mk 41 61-cell Vertical Launching System (VLS) aft;
up to 122x Standard Missile (SM-2/SM-6), Standard Missile (SM-3), RUM-139 VL-ASROC, or RGM-109E Tactical Tomahawk;
6x Mk 46/Mk 50/Mk 54 torpedoes (fired from 2x Mk 32 triple 324mm torpedo tubes);
2x Mk 45 5-inch (127mm) guns;
2x Raytheon Mk 15 Phalanx Close In Weapon System (CIWS);
3x .50 caliber (12.7mm) machine guns
Crew: 324 (24 Officers and 300 Enlisted Men)
Price/Unit Cost: Unknown
Deployed: January 22, 1983 (USS Ticonderoga)


Ticonderoga (CG 47) - Decommissioned on September 30, 2004
Yorktown (CG 48) - Decomissioned on December 3, 2004
Vincennes (CG 49) - Decomissioned on June 29, 2005
Valley Forge (CG 50) - Decomissioned on August 30, 2004
Thomas S. Gates (CG 51) - Decomissioned on December 14, 2005
USS Bunker Hill (CG 52)
USS Mobile Bay (CG 53)
USS Antietam (CG 54)
USS Leyte Gulf (CG 55)
USS San Jacinto (CG 56)
USS Lake Champlain (CG 57)
USS Philippine Sea (CG 58)
USS Princeton (CG 59)
USS Normandy (CG 60)
USS Monterey (CG 61)
USS Chancellorsville (CG 62)
USS Cowpens (CG 63)
USS Gettysburg (CG 64)
USS Chosin (CG 65)
USS Hue City (CG 66)
USS Shiloh (CG 67)
USS Anzio (CG 68)
USS Vicksburg (CG 69)
USS Lake Erie (CG 70)
USS Cape St. George (CG 71)
USS Vella Gulf (CG 72)
USS Port Royal (CG 73)
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