A coalition of aerospace and technology heavyweights — including Viasat, Thales, Dimetor, TTP plc, and the European Space Agency (ESA) — has successfully completed flight trials testing satellite-based communications for long-range BVLOS (Beyond Visual Line of Sight) drone operations. The tests were conducted at Cranfield University in the UK, one of Europe's premier aerospace research facilities.
What Is BVLOS and Why Does It Matter?
BVLOS — Beyond Visual Line of Sight — refers to drone operations conducted outside the direct visual range of the pilot or operator. It's widely considered the next major frontier for commercial UAV deployment, enabling use cases like long-distance infrastructure inspection, medical and cargo delivery across rural areas, and large-scale aerial surveying.
The catch? Reliable, secure communication links between ground operators and UAVs become exponentially more complex at extended ranges. Traditional radio control systems simply don't have the range or reliability needed. That's where satellite communications — or satcoms — come in.
Satellite Connectivity as the BVLOS Backbone
The trials at Cranfield University's National Flying Laboratory focused on validating whether satellite-based data links could provide the consistent, low-latency command-and-control connectivity required for safe BVLOS drone operations. Involving both established aerospace primes like Thales and Viasat alongside specialist firms like Dimetor and TTP plc, the consortium brings together expertise spanning satellite networks, UAV traffic management, and embedded systems engineering.
Viasat, known globally for its high-capacity satellite broadband services, brings critical connectivity infrastructure to the project. Thales contributes deep aerospace integration experience, while Dimetor specializes in UTM (Unmanned Traffic Management) solutions — a key component for safely routing drones in shared airspace. TTP plc adds engineering and systems integration capabilities to the mix.
Why This Trial Is Significant
Successful satcom-enabled BVLOS trials represent a meaningful step toward regulatory approval for routine long-range drone operations. Regulators including the UK Civil Aviation Authority (CAA) and European Union Aviation Safety Agency (EASA) require robust evidence that UAV command-and-control links remain reliable before granting broad BVLOS operational approvals.
Key implications of this development include:
- Longer operational range — Satellite links are not constrained by terrain or line-of-sight radio limitations
- Redundancy and resilience — Satcoms can serve as a backup or primary link where cellular coverage is unavailable
- Scalability — A satellite-based infrastructure can theoretically support large numbers of simultaneous UAV operations across wide geographic areas
- Regulatory pathway — Real-world flight data from trials like this feeds directly into the evidence base regulators need to craft workable BVLOS frameworks
The Bigger Picture for Commercial UAV Operations
The drone industry has long viewed BVLOS capability as the key that unlocks truly transformative commercial applications — from pipeline and powerline inspection to last-mile delivery in remote communities. Satcom-based solutions are increasingly seen as one of the most viable paths to achieving this at scale, complementing existing 4G/5G cellular-based command links that work well in populated areas but struggle in rural or maritime environments.
With ESA's involvement, this trial also signals growing institutional interest in positioning European satellite infrastructure as a foundation for the continent's emerging drone economy. As BVLOS regulatory frameworks continue to mature across the UK and EU, industry trials like this one will play a crucial role in shaping what safe, scalable long-range drone operations ultimately look like.