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We usually look for what’s new, with innovative drones emerging and gaining traction in commercial and military applications, but this month, news of the termination of a leading UAV program has sparked interest.
The British Army’s Watchkeeper drone program has long been the subject of criticism over development delays, cost overruns and poor performance. Recent reports that the Watchkeeper fleet could be retired as early as 2025 — though that timeline may now slip to 2027 — have renewed scrutiny of the troubled effort. Perhaps a review of the story behind this drone adventure may be in order.
The UK has been involved with drone operations going back into the 1960s, giving this military force deep experience and expertise in the field. Political support has enabled significant investment over time. When the Watchkeeper program was rolling in 2004-05, the US was moving toward the MQ-9 Reaper project, and military forces around the world were building their own mil-spec UAVs, mostly for surveillance to support military ground operations.
At that time, few commercial drones existed beyond radio-controlled model aircraft flown by hobbyists. The idea was growing in China at that time for DJI and quad-copters, so these multi-use UAVs eventually emerged, and have led to a multitude of outfits elsewhere also making commercially available drones.
When the Watchkeeper program took shape in 2004, developing a custom platform was essentially the only way for the UK to obtain a medium-altitude ISTAR intelligence, surveillance, target acquisition and reconnaissance (ISTAR) drone tailored to its requirements. The Ministry of Defence identified Israel-based Elbit Systems, which produced the Hermes 450 military drone, as a close match. The program was built around an extensively modified version of that aircraft, with the goal of bringing production to the UK
In 2005, the U.K. Ministry of Defence awarded a £775 million contract to U-TacS, a joint venture between Thales UK and Elbit Systems, for the design, manufacture and support of 54 Watchkeeper WK-450 drones. The modifications involved making the UAV all-weather capable, including Thales integrated radar/GPS system for automated landing and take-off (Magic-ATOLS), Thales MASTER SAR/GMTI radar, dual electro-optical/IR cameras, laser designator, and tweaks to the Line-of-Sight radio system, with a satellite link option. Nevertheless, the range of the radio limits operation to within less than 100 miles of the mobile base-station, but it did provide a high-bandwidth, secure, direct, unobstructed wireless link for control and real-time video and targeting data back from the vehicle.
Cost overruns and delays pushed the first flight to 2008 in Israel. Production of the WK-450 was then established at Thales UK, formerly Racal Electronics. The technology transfer between the two companies, separated by more than 2,000 miles, operating across different corporate cultures and exchanging proprietary material, proved more difficult and time-consuming than anticipated.
The program delivered its first aircraft in 2014. Four drone systems flew in Afghanistan during the British troop withdrawal, logging a total of just 140 flight hours. Performance fell short of expectations, particularly the system’s all-weather capability, which proved inadequate in Afghan conditions. The U.S. military encountered similar challenges with sand contamination of helicopters and fixed-wing aircraft during early operations in Iraq and Afghanistan.
As time rolled by, Watchkeeper found some use in Cyprus and in the UK, mostly for training, but problems continued. Between 2014 and 2022 eight vehicles crashed, and most have presumably been written off. Others have apparently experienced unplanned ‘contact with ground’ in more recent times. Faith in the now pretty old drone system has waned with the British forces — even recent political pressure to hand over the remaining fleet to Ukraine has been rebuffed by the Army — maybe too many problems with which to coach Ukraine troops. Watchkeeper is apparently now dismantled for the UK, along with the whole £1 billion investment. But not without gaining a lot of knowledge and operational experience, however an expensive lesson none the less.
The UK has operated MQ-9A Reapers in Afghanistan, Iraq and Syria for more than 18 years, but after the Royal Air Force’s success with this US drone, these too have been retired in favor of the new MQ-9B Protector. The Protector has been customized and brought up to civilian certification standards by the manufacturer General Atomics. There have been similar sad programs with many ground, marine, and air projects around the world, but this has been such a visible and unhappy tale, it’s sad to see it end, but it’s probably a good thing so that other newer, more promising projects can get funding and become successful.
Almost in the same breath, another UK company has already been supplying unmanned cargo aircraft to Ukrainian forces for more than three years. Windracer ULTRA is a twin-prop aircraft that can lift 330 lb for up to 620 miles, with 10 hours of endurance at a ceiling of up to 13,000ft. A newer version can reportedly travel twice as far with more payload.
In Ukraine, the drone has been supplying front-line troop emplacements on a regular basis. The UK has been using ULTRA for surveillance and parachute drop re-supply, middle-mile parcel and cargo delivery to remote destinations, and for aerial surveys in Antarctica and elsewhere.
So, a commercial start-up got there on its own, no direct government funding other than contracted support, and apparently no JV with another company! So does 100% government funded development work better than setting up on your own, borrowing a bunch of cash, and doing it yourself? Mil-spec stuff is special with a limited market, so it’s unlikely that governments will ever be able to pick up finished products that fulfil all needs, but as the U.S. is proving with its bulk buy of off-the-shelf small one-way UAVs, these can meet many requirements.
