Event Brief
Sep 11, 2026 at 11:02 AM ET
Type 45 destroyers lose power in warm water
By The BriefBrief
Britain’s Type 45 destroyers can lose all electrical power when sea temperatures exceed about 28°C. The WR-21 gas-turbine intercoolers fail outright, tripping the turbines and forcing the ship’s electrical load onto undersized diesel generators, which then collapse in sequence, taking propulsion, sensors, weapons and navigation offline.
WHO: Type 45 destroyer design (Rolls-Royce WR-21 gas turbines; ship’s integrated electric propulsion system)
WHAT: Warm-water conditions trigger intercooler failure on Type 45 destroyers, causing turbines to trip and electrical power to collapse across the ship.
WHEN: Reported Sep 11, 2026 at 10:27 AM ET
WHERE: Persian Gulf
WHY: Sea water warmer than about 28°C causes the turbines’ intercoolers to fail outright, tripping the WR-21 gas turbines and cascading electrical-system failure.
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