August 27, 2004

Raytheon concept of  Cobra Judy replacement ship

Navy seeks CJR vessel

Operated by Military Sealift Command, the USNS Observation Island is a missile range instrumentation ship that mounts the "Cobra Judy" radar system used to monitor international compliance with strategic arms treaties.

The ship was originally built as a merchant vessel and delivered from New York Shipbuilding, Camden, NJ, as the Empire State Mariner, in 1952.

Since then, the ship has had an almost unbelievable career—-including being used as the platform for the first shipborne launch of a Polaris missile (back in September 1959).

Now, after more than half a century, the Navy is shopping for a replacement.

In December 2003, the Navy awarded Raytheon a $1.04 billion letter contract for the Cobra Judy Replacement (CJR) Mission Equipment program. Under that arrangement, Raytheon Integrated Defense Systems (IDS) will replace the existing Cobra Judy, an integrated, computer-driven surveillance and data collection radar system that supports U.S. treaty monitoring activities with a dual-band radar suite consisting of X-band and S-band active phased array sensors and other related mission equipment.

The Raytheon-led team will design,fabricate, integrate and test the dual band radar suite and provide engineering and management support for procurement of the Cobra Judy Replacement ship.

Earlier this month, Naval Sea Systems Command announced that it plans to issue an unrestricted solicitation for the replacement ship.

The Navy plans to conduct the T-AGM (R) procurement in two phases. Phase I will contract for a concept/preliminary design with the award of only two firm fixed price contracts. Phase II will be for detail design and construction of the ship. Award for Phase II will only be made to the Contractors who received a Phase I award.

According to the initial information made public by the Navy, T-AGM(R) will be a U.S. flagged new construction ship classed in accordance with American Bureau of Shipping (ABS) standards, certified by the United States Coast Guard (USCG) and designed / built in conformance with Safety of Life at Sea (SOLAS) requirements and other commercial and regulatory body rules and regulations as applicable.

The maximum length overall will not exceed 712 feet, the maximum beam will not exceed 106 feet, the maximum navigation draft wwill not exceed 27 feet and the air draft will not exceed 136 ft.

The T-AGM(R) will be capable of using all current T-AGM 23 USNS OBSERVATION ISLAND facilities and ports.  

The T-AGM(R) will be capable of performing mission operations in wave heights of 8-13 feet and surviving in wave heights of 25-46 feet.

A Military Sealift Command (MSC) Civilian Mariner (CIVMAR) crew or an MSC contracted civilian crew will operate the ship. 

The ship will be designed for a full complement of 88 persons berthed in 62 single staterooms and 13 double staterooms.

Dedicated interior mission space with a combined usable deck area of no less then 1,254 square meters is required. 

Mission system power requirements are estimated at 8 MW at a five (5) knot loitering speed

The T-AGM(R) is required to support two deck mounted mission radar arrays and a topside antenna area is required to accommodate approximately 38 communication antennas.     A horizontal separation of 30 meters and a vertical separation of 11 meters is required for the deck mounted mission radars.     The distance from the bridge wings to the closest mission radar shall be no less then 30 meters. The estimated weight of the upper mission radar array is 298 long tons and that of the lower mission radar array is 270 long tons.

The projected service life of the T-AGM(R) will be 30 years.

The ship is required to be fully supportable within the current commercial and DoD supply chains

The ship will have the capability to conduct independent and unreplenished operations for up to 70 days with an operational range of at least 12000 nautical miles at a sustained speed of 20 knots at 80% of the Maximum Continuous Rating (MCR).


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