OSL has successfully completed the final phase of Project HADO, a UKRI-funded research initiative focused on enabling secure, repeatable Beyond Visual Line of Sight (BVLOS) drone operations in complex environments. The project’s final live trials, conducted within Heathrow’s Flight Restriction Zone, demonstrated critical advancements in autonomous drone operations, with implications for both operational drone use and counter-UAS coordination.
Project HADO – short for High-Intensity Autonomous Drone Operations – was designed to address the operational challenges of deploying autonomous drones in dense, safety-critical environments. Unlike traditional BVLOS projects that focus on corridor-based transit, HADO aimed to develop autonomous drone capabilities for high-traffic locations such as airports, ports and urban centres.
The project incorporated a digital twin environment, developed with Cranfield University, to enhance flight planning and environmental awareness. OSL’s proprietary FACE platform integrated drone-in-a-box infrastructure, layered sensor fusion, Unmanned Traffic Management (UTM) tools and real-time operator interfaces to ensure safe and adaptable operations, even in GPS-denied environments.
One of the project’s key developments was the introduction of a mobile HADO system, which allows for the rapid deployment of autonomous drones within a single day. This capability extends potential applications to critical infrastructure protection, urban security and emergency response.
Implications for counter-UAS
As autonomous drone operations become more prevalent at sensitive sites, counter-UAS strategies must evolve to accommodate both security threats and legitimate drone activity. The growing presence of authorised drones – whether for surveillance, delivery or infrastructure monitoring – requires counter-UAS systems to distinguish between hostile, friendly and neutral aircraft while ensuring seamless coordination with site-managed drone operations.
Project HADO’s advancements in detect-and-avoid technology can be applied in this evolving landscape. The system integrates radar, optical sensors and AI-driven threat assessment to autonomously detect airborne risks, adjust flight paths or return drones to base without disrupting other operations. These capabilities highlight the necessity for counter-UAS platforms to work in tandem with UTM systems, ensuring that defensive measures do not interfere with legitimate drone missions.
Regulatory and future developments
The completion of Project HADO aligns with OSL’s ongoing collaboration with the UK Civil Aviation Authority to advance BVLOS regulatory frameworks. The operational data gathered during the trials will contribute to policy development for the safe expansion of autonomous drone use in controlled airspace.
Beyond security applications, the technologies developed under HADO have potential uses in infrastructure monitoring, smart city management and future airspace integration, including coordination with emerging concepts such as urban air mobility and drone delivery networks.
“Project HADO® has been a defining moment for OSL,” said Mark Legh-Smith, Chief Executive Officer at OSL. “We’ve taken a bold vision and delivered a functioning, field-tested system that brings together autonomy, safety, and situational awareness. It’s a milestone not just for our team, but for the future of UK airspace.”
With autonomous drones playing an increasing role in security, logistics and emergency response, Project HADO’s findings reinforce the importance of integrated airspace management, where operational and counter-UAS measures must function as part of a unified system rather than separate entities.
