The Royal Navy’s HMS Defender is undergoing one of the most significant firepower upgrades seen on a British warship in decades.
The Type 45 destroyer is being fitted with an additional 24-cell vertical launch system (VLS) for the Sea Ceptor surface-to-air missile, dramatically boosting its air defence capability.
Images captured by naval observer Steve Wenham show the new silo being installed ahead of the ship’s existing Sylver A50 launchers, which currently hold the longer-ranged Aster missile family. Work at Portsmouth dockyard indicates preparations are already well advanced.
A Step-Change in Firepower
The new installation raises Defender’s close-in air defence capacity by roughly 50 per cent. Sea Ceptor, also known as the Common Anti-air Modular Missile (CAMM), is designed to intercept aircraft and missiles at short to medium ranges.
By dedicating 24 new cells to Sea Ceptor, the upgrade frees all 48 Sylver cells to carry the longer-range Aster 30 interceptors. In practice, this gives the ship not only a larger total missile load, but also a sharper balance between short-range point defence and long-range area coverage.
Proven Technology
Sea Ceptor is no stranger to the Royal Navy. Already operational aboard Type 23 frigates, it will also equip the new Type 26 and Type 31 classes. Using active radar homing and a soft-launch system, CAMM is compact enough to be packed in higher numbers while still capable of engaging multiple targets simultaneously. It is also highly resistant to modern electronic countermeasures.
Strategic Edge
For HMS Defender, the refit represents a significant leap forward. It brings the destroyer closer to the layered air-defence standard now common among European fleets, and strengthens its ability to operate independently in contested environments or act as a high-end escort for carriers and amphibious task groups.
The upgrade forms part of a wider programme of Capability Insertion Periods across the Type 45 class, designed to extend service life and plug long-standing gaps in the destroyers’ weapons loadout.
Once complete, Defender’s refit will stand as a landmark modernisation, and a clear signal of the Royal Navy’s intent to keep its frontline warships at the cutting edge of maritime defence.
