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
-
Industrial capacity under scrutiny as US approves further $8.6 billion Middle East arms sale
The fast-tracked emergency approvals come as the conflict in the Middle East stretches out into its third month, after Iranian attacks depleted US allies’ missile stockpiles and testing air defence systems.
-
Intelligence innovation: From data overload to decision advantage (Podcast)
As militaries face an overwhelming flow of data, the challenge is shifting from collection to delivering fast, actionable insights that drive decision-making. Advances in AI and data integration are helping armed forces move beyond siloed systems to generate real-time intelligence across domains and allies.
-
SAHA 2026 to Convene the Global Defence Ecosystem
SAHA 2026 brings global defence and aerospace leaders to Istanbul for partnerships, launches, panels and high-value meetings.
-
Teledyne FLIR adds GPS-denied 3D-mapping capabilities to its CBRN uncrewed platforms
In a partnership with Emesent, Teledyne FLIR will equip its autonomous air, ground and detection systems with the Hovermap LiDAR payload in a move that highlights a broader market shift towards modular architectures, shared payloads and interoperability across platforms.
-
US seeks 32% boost for missile defence budget with $23 billion earmarked for interceptors
The Pentagon’s proposed budget for the next fiscal year includes an impressive increase in the procurement of interceptors, with the number of the US Army’s PAC-3 MSE rounds expanding by 683%, the US Navy’s Standard Missile by 365% and the MDA’s SM-3 IIA by more than 1,000%.
-
US Army partners with Global Military Products to surge munitions production
Global Military Products was selected by the US Army to operate the Quad Cities Cartridge Case Facility and ramp up the production of various calibre shell cases.