UAVRetired

Thales Watchkeeper WK450

Tactical MALE ISR · Thales UK / U-TacS · GB

Hermes 450-derived ISR system operated by the British Army's Royal Artillery, combining EO/IR and a dual-mode radar. The UK announced its withdrawal from service, with the fleet being retired in favor of successor UAS programs.

Specifications

Performance

Thales Watchkeeper WK450 — Performance
Specification	Value
Endurance	16 h
Ceiling	4877 m
Max speed	175 km/h

Thales Watchkeeper WK450 — Mass & payload
Specification	Value
MTOW	450 kg
Payload	150 kg

Full spec sheet

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Thales Watchkeeper WK450 vs Elbit Hermes 900

Watchkeeper was derived from the Hermes 450 lineage, while the Hermes 900 is Elbit's own next step up. With the UK fleet retired, the pairing is a case study in how derivative-nationalization strategies compare against buying the manufacturer's current product.

Sources

Every entry is verified against at least two independent sources before it ships.