Gulf temperatures reduce WR-21 output
The high temperatures in the Arabian Gulf have resulted in increasing wear and reductions in power generation for the UK Royal Navy’s T45 destroyers when deployed to the region.
Briefing media at the Rolls Royce site in Bristol this week officials said initial experiences of the temperatures, which can top 50 degrees in the peak of summer, ‘tripped out’ the WR-21 gas turbine engines. The problem had since been solved by effectively installing a limiter into the engine management, enabling the crew to take into account climatic conditions when on deployment.
‘We have seen some reduction in power in high
Our news & analysis is now part of Defence Insight®
A Basic-level or higher Defence Insight subscription is now required to view this content.
More from Defence Notes
-
Eurosatory 2026: Partnership deals surge as industry prepares for defence spending growth
Dozens of partnership agreements, joint ventures and industrial cooperation arrangements were announced at Eurosatory 2026, highlighting how defence companies are expanding production capacity, localising manufacturing and accelerating capability development in anticipation of rising defence spending.
-
Eurosatory 2026: New public security needs drive personal protection equipment modernisation
European law enforcement and public security agencies are entering a new cycle of investment in personal protection equipment (PPE), driven by evolving threat profiles, officer welfare requirements and advances in materials technology.
-
The speed of relevance: how companies can navigate the new era of European defence procurement
European militaries face a rapidly evolving security landscape and defence production must accelerate to meet surging demand for platforms and equipment. Industry needs to adapt to ensure it gets its products into the hands of the end user, Evelyn Rafferty, Senior Director Aerospace and Defence - Europe at Plexus told Shephard’s Gerrard Cowan.
-
Eurosatory 2026: Milrem Robotics puts forward multi-layered defence concept for NATO’s eastern flank
Autonomous systems developer Milrem has evolved a model for an interoperable robotised approach to the Eastern Flank Deterrence Initiative (EFDI), showing how uncrewed systems could provide a multi-layered defence architecture in the air and on land along NATO’s eastern borders.
-
Eurosatory 2026 to highlight changing defence and security priorities
Eurosatory 2026 will reflect a defence and security sector shaped by conflict, rising government spending, uncrewed systems, multidomain networks and growing demand for sovereign capabilities.
-
Delays, departures and drama cloud UK defence programmes ahead of absent DIP
The UK defence secretary’s departure suggests that the long-delayed Defence Investment Plan is unlikely to meet the funding demands of the armed forces, with consequences for procurement and the UK’s standing at a NATO summit weeks away.