HII’s Ingalls Shipbuilding division has received a $99m contract modification from the US Navy to conduct sea trials for the future USS Lyndon B Johnson (DDG 1002), the third and final vessel in the Zumwalt class.
The contract covers system testing and sea-trial activities required before the ship is delivered to the US Navy.
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The future USS Lyndon B Johnson is undergoing work at Ingalls after arriving at the shipyard in January 2022 for the installation, activation and testing of its combat systems.
The ship is also receiving modernisation upgrades, including the integration of the Conventional Prompt Strike (CPS) weapon system. Once the work is completed, it will become the Navy’s second CPS-equipped platform.
Ingalls Shipbuilding president Brian Blanchette said: “This award reflects the Navy’s continued confidence in the Ingalls team to execute the critical system test and sea trials work essential to the Navy’s phased delivery approach.”
The future USS Lyndon B Johnson was launched in 2018 at General Dynamics Bath Iron Works in Maine. It is expected to be commissioned in 2027.
The ship is the final member of a class originally developed under the Navy’s DD-21 programme, which the US Department of War redesignated as DD(X) in November 2001.
The lead ship of the programme, USS Zumwalt (DDG 1000) was delivered to the Navy in May 2016 and commissioned later that year.
In January this year, Ingalls completed builder’s sea trials for USS Zumwalt after the destroyer underwent a modernisation programme at the company’s Pascagoula shipyard in Mississippi.
The second ship, USS Michael Monsoor (DDG 1001) was delivered in April 2018 and commissioned in January 2019.
The Zumwalt-class ships are designed for littoral and land-attack missions. Their stated roles include area air surveillance, power projection, sea control and command and control across the sea-land interface.
The vessels measure 610ft in length, have a beam of 80.7ft and displace 15,997 tonnes. Each ship is designed to reach a sustained speed of 30 knots and accommodate a crew of 197.
The class features an electric propulsion system, a wave-piercing tumblehome hull and a design intended to reduce detectability. They are also designed to accommodate new systems and capabilities over their service lives.
