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Network Rail completes longest civilian BVLOS drone flight in Britain

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Posted: 28 October 2021 | | No comments yet

Believed to be the furthest civilian drone flight in Britain, the flight marks a huge step forward in terms of how drones can be used to inspect railway infrastructure safely, quickly, and cost-effectively.

Network Rail completes longest civilian BVLOS drone flight in Britain

Credit: Network Rail

Network Rail’s air operations team have successfully flown a drone Beyond Visual Line of Sight (BVLOS) for 25km over dry land, believed to be the furthest such civilian drone flight in Britain.

The proof-of-concept flight, which took place on 27 October 2021 from Bicester along the East West Railway, is the culmination of 18 months of work. It is a significant step forward in terms of how drones can be used to inspect the railway safely, quickly, and cost-effectively.

Drones and helicopters have long been used by Network Rail to identify faults on the railway, helping to predict and prevent failures to reduce disruption for passengers, while also representing a safer form of maintenance by limiting the number of manual inspections that need to be carried out by foot.

Until now, drones were only ever flown above the railway when they were in clear sight of the operator, and usually only for four or five km at a time. While this can still be a helpful tool to inspect Britain’s rail infrastructure, it requires the team involved to set up multiple times at different locations. The ability to fly Beyond Visual Line of Sight enables the air operations team to inspect the railway over a much larger area while saving valuable time and costs.

Rikke Carmichael, Network Rail’s Head of Air Operations said: “While flying Beyond Visual Line of Sight will ultimately provide us with much greater capability, it is worth emphasising that this was a proof-of-concept flight, and that a shift to using BVLOS as business as usual will take some time.

“Nonetheless, it was an important milestone and I’d like to thank my team for all their hard work on this project over the last couple of years. We’ll now turn our attention to agreeing a strategy for using drones both VLOS and BVLOS, after which we will want to engage with industry for the next exciting phase of BVLOS becoming another routine service the Air Ops team provides the business.”

A Network Rail helicopter also flew alongside the drone to test whether or not the two could work together, and whether their respective systems recognised each other. It was proved that they did work effectively together. Data captured by the helicopter will be used to create a ‘digital twin’ of the railway that was flown over.

 

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