Hamworthy Pumps chosen for two special mission vessels

Hamworthy Pumps chosen for two special mission vessels

The excellent collaboration with Wärtsilä Defense paves the way for new orders with the US Navy. Hamworthy Pumps will supply a total of 60 pumps for two towing, salvage and rescue ships.


The order book at Hamworthy Pumps contains many orders for pumps for US Navy newbuilds. Earlier this year the company received orders for 42 pumps for the fourth tanker in the John Lewis (T-AO 205) class programme, and now two more contracts have been signed for pumps for US Navy newbuilds.


This time it concerns two towing, salvage and rescue ships, which are to be built by Gulf Island Fabrication Inc. in Louisiana, USA. The ships are part of the US Navy’s new T-ATS class programme, which will consist of eight vessels. In 2019, Hamworthy Pumps delivered pumps for the first T-ATS ship – USNS Navajo – and will now continue to be a supplier for the next two ships in the programme – USNS Cherokee Nation and USNS Saginaw Ojibwe Anishinabek.


Hamworthy Pumps will deliver a total of 60 pumps for the two vessels as a subcontractor of Wärtsilä Defense Inc. The ships of the new T-ATS class are built based on Wärtsilä’s VS 4612 vessel design.


The orders of pumps for USNS Cherokee Nation and USNS Saginaw Ojibwe Anishinabek underlines Hamworthy Pumps’ strong position as a supplier for the US Navy. In collaboration with Wärtsilä Defense, Hamworthy Pumps has delivered complete shipsets for all new-builds under T-AO 205 and T-ATS. Therefore, the company is in a favourable position for future projects under the two programmes.


Facts: Each shipset consists of:

Fire pump (1 unit)

Emergency fire-fighting pump (1 unit)

Deck wash pump (1 unit)

Seawater cooling pump main system (3 units)

Seawater cooling pump A/C & provisions (2 units)

Seawater cooling pump hydraulic equip (2 units)

Seawater cooling aux system (1 unit)

Sewage pump (1 unit)

Bilge pump (2 units)

Ballast pump (2 units)

Fresh water cooling (4 units)

Fresh water cooling main propulsion aux (4 units)

Fresh water cooling bow thrusters (4 units)

Fresh water cooling aft thrusters (2 units)


View PDF_Client Case_US Navy T-ATS class

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