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Home›Research & Development›UK’s FSS program advances to new phase following completion of CDR
Research & Development

November 19, 2025 · about 9 months ago

UK’s FSS program advances to new phase following completion of CDR

The Fleet Solid Support (FSS) program for the Royal Fleet Auxiliary (RFA) has advanced to a new phase following completion of the critical design review (CDR).

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UK’s FSS program advances to new phase following completion of CDR
Archive; Credit: Defence Equipment and Support (DE&S)

The Fleet Solid Support Ships (FSS) program for the Royal Fleet Auxiliary (RFA) has advanced to a new phase following completion of the critical design review (CDR) by the prime contractor, Navantia UK, and the Defence Equipment and Support ( DE&S) project team, with support from BMT.

As disclosed, the CDR assessed the complete, detailed design of the vessels, from hull structure to equipment fit. Overall structural integrity, safety standards, environmental sustainability, risk minimization, and military systems integration were reportedly covered through the process.

It is understood that this milestone marks significant progress in delivering advanced vessels for the RFA. The ships are expected to enhance the UK’s naval capabilities and support maritime security operations worldwide.

Ian Randles, FSS Chief Engineer at DE&S, said: “Completing the CDR represents a significant achievement for the FSS programme and demonstrates the strong partnership between DE&S, Navantia UK, and BMT. This milestone gives us confidence that we’re on track to deliver these vital support ships that will enhance the Royal Fleet Auxiliary’s global reach and ensure our naval forces have the logistical support they need wherever they operate. We’re now ready to move forward with cutting steel and beginning construction of these advanced vessels.”

Keith Bethell, DE&S Director, Maritime Environment, commented: “I was impressed by the scale of transformation underway in Belfast, seeing firsthand how we will deliver this world-class capability and meeting individuals central to the programme. This important CDR milestone brings us closer to ensuring the RFA can support our naval operations worldwide, whilst strengthening sovereign shipbuilding for years to come.”

Donato Martinez, CEO of Navantia UK, stated: “CDR confirms the hard work and collaboration between MOD, BMT and Navantia UK. This milestone demonstrates that the programme is ready to meet its operational, logistical and efficiency needs as it gears up to deliver for the Royal Navy and RFA.”

Notably, the CDR follows the preliminary design review (PDR) in October 2024 and was marked in Belfast and Cádiz. The FSS program is now set to move toward first steel cutting and the start of the ship assembly.

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