The UK's flagship aircraft carrier, HMS Prince of Wales, suffered another mechanical failure while undergoing repairs in a Norwegian port, delaying its participation in the 250th anniversary celebrations of the US Declaration of Independence. According to the report, the incident — likely involving the propeller shaft — adds to a pattern of reliability issues and comes as Prime Minister Keir Starmer faces pressure to publish a delayed Defence Investment Plan (DIP) amid a Treasury standoff over funding. A senior naval source described the situation as "devastating for morale," as reported by the source artcile.

The propeller shaft strikes again: A third breakdown in 18 months

According to the report, defence sources cited a minor technical issue requiring docking in Stavanger, Norway, with the propeller shaft identified as the likely cause — a recurrent problem for both Queen Elizabeth-class carriers. This marks the third significant failure: HMS Queen Elizabeth withdrew from a NATO exercise in 2024, and HMS Prince of Wales was towed in 2022.. the Royal Navy assumed maintenance responsibility from manufacturers without confirming full seaworthiness, leading to taxpayer-funded repairs, the article states. The Ministry of Defence said the carrier is expected to sail in the coming days, but the pattern raises questions about the fleet's long-term reliability.

£15-18 billion compromise :The Treasury's defence spending standoff

The breakdown occurs amid a heated funding dispute. Prime Minister Starmer has pledged to release the delayed Defence Investment Plan within a month, but the Treasury is seeking a compromise between £15 billion and £18 billion against a reported £28 billion shortfall, the article states. sir Richard Knighton, Chief of the Defence Staff, warned that Russia is raising the stakes and risks crossing the line by 2030, urging enhanced capabilities and readiness. starmer acknowledged that funding cuts may be needed elsewhere to support defence, but no agreement has been reached, according to the report.

Devastating morale: What the naval source revealed about the crew's mood

A senior naval source described the situation as "devastating for morale," according to the report. the timing is particularly embarrassing because the carrier was scheduled to take part in the 250th anniversary celebrations of the US Declaration of Independence, an event attended by President Donald Trump, who has previously mocked the Royal Navy as "old and broken." The MoD stated the carrier is expected to sail in the coming days, but the pattern of breakdowns raises concerns about the entire QE-class fleet's operational readiness.

Who signed off on seaworthiness? The unanswered maintenance question

The article reports that the Royal Navy assumed maintenance responsibility from manufacturers without confirming full seaworthiness. It remains unclear which body or official approved the handover and what checks were performed . Open questions also include the exact cost of these repeated repairs and whether the Treasury's funding shortfall will further delay necessary upgrades. The article does not quote any manufacturer's perspective or independent audit, leaving the accountability chain opaque.