Thales Watchkeeper WK450

Watchkeeper WK450
A Watchkeeper based at RAF Akrotiri
General information
TypeUnmanned surveillance and reconnaissance aerial vehicle
National originUnited Kingdom
Israel
ManufacturerThales Group & Elbit Systems
StatusOut of service
Primary userBritish Army
Number built54
History
Introduction date30 November 2018 (full operational capability)
First flight14 April 2010
Developed fromElbit Hermes 450
VariantsWatchkeeper X

The Thales Watchkeeper WK450 is an unmanned aerial vehicle (UAV) for intelligence, surveillance, target acquisition, and reconnaissance (ISTAR) formerly used by the British Army. It was developed by UAV Tactical Systems (U-TacS), a joint venture of Elbit Systems UK and Thales UK, and is based on Elbit's Hermes 450.

The Watchkeeper entered full service in 2019, but was retired by March 2025, significantly before its earlier planned out-of-service date of 2042.