Engineering Department Takes Control of Future USS Tripoli (LHA 7)

The engineering department of the future USS Tripoli (LHA 7) began turnover of onboard engineering operations from Huntington Ingalls Industries (HII) on March 13, a process that puts the ship on the path to becoming a fully operational Navy warship.

The planned turnover process consists of handing off operations of major systems to Tripoli engineers. The ship’s engineers started up major engineering plant equipment for the first time, which takes time because of the numerous shipboard spaces, types of equipment, and variations between Navy and HII processes.

Additionally, the Navy has specific procedures required to operate each type of equipment in its inventory and are designed to ensure the safety of personnel and equipment during normal operations and scheduled maintenance.

The engineers of Electrical division, Repair division, Auxiliaries division and Main propulsion reviewed all engineering assets in their spaces such as fuel, oil, and machinery equipment. For Sailors, these inspections gave them the time and vital training necessary to familiarize themselves with Tripoli’s onboard equipment.

For Tripoli engineers, taking ownership of the spaces is only the beginning. They will continue preparing for inspections and assessments with the goal of becoming a fully operational and qualified engineering department.

With this the ship one step closer to commissioning and its journey to homeport in San Diego.

USS Tripoli (LHA-7)

USS Tripoli (LHA-7) is the second America-class amphibious assault ship built for the United States Navy.

The construction of LHA 7 began in July 2013, and the ship’s keel was laid in a ceremony on 20 June 2014 in Pascagoula. Tripoli was christened on 16 September 2017, with Lynne Mabus (wife of former Navy Secretary Ray Mabus) as her sponsor.

The vessel completed her builder’s trials on June 19 and acceptance trials in October last year. She was officially delivered to the Navy on Feb. 28 this year.

Tripoli is built to facilitate forward presence and power projection. She is the third U.S. Navy ship named for the Battle of Derne in 1805. It was the decisive victory of a mercenary army led by a detachment of United States Marines and soldiers against the forces of Tripoli during the First Barbary War. It was the first recorded land battle of the United States fought overseas.

LHA 7 incorporates the fuel-efficient gas turbine propulsion plant, zonal electrical distribution, and electric auxiliary systems first installed on Wasp-class amphibious assault ship USS Makin Island (LHD 8). LHA 7 will be 844 feet in length, will have a displacement of approximately 44,971 long tons, and is capable of operating at speeds of over 20 knots.

The future USS Tripoli is the last Flight 0 America-class LHA ship planned for construction and features an enlarged hangar deck, realignment, and expansion of the aviation maintenance facilities, an increase in available stowage for parts and support equipment, and increased aviation fuel capacity. LHA 8 (future USS Bougainville) will be the first Flight I ship, reincorporating a well deck to enhance expeditionary warfighting capabilities while maintaining the principal aviation characteristics of the Flight 0 ships.

Tripoli will enhance Marine Corps aviation with its enlarged hangar deck, greater maintenance capability, and JP-5 fuel capacity.

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