Leonardo's Proteus helicopter flew autonomously for the first time, marking a major step in the Royal Navy’s Atlantic Bastion.
British aviation crossed a major milestone this week as the UK’s first truly autonomous full-size helicopter completed its maiden flight in Cornwall.The aircraft flew from Predannack airfield on the Lizard Peninsula, marking a breakthrough for uncrewed military aviation.
The helicopter, called Proteus, is a technology demonstrator built by Leonardo for the Royal Navy.The project aims to show how large autonomous helicopters could operate alongside crewed aircraft as part of a future hybrid air wing.Proteus flew just weeks after completing extensive ground trials at Leonardo’s Yeovil facility. Engineers tested engines, sensors, and control systems before authorising flight.Representatives from industry, the Royal Navy, and UK defence bodies attended the event.Autonomous flight milestoneDuring the maiden flight, Proteus followed a short test profile. The aircraft controlled its own flight systems without direct human input.Proteus autonomous helicopter parked after flight test. Credit – Royal NavyTest pilots monitored the mission from the ground to ensure safety.Unlike smaller drones already in Royal Navy service, Proteus matches the scale of conventional helicopters. The service already operates systems such as Malloy octocopters and Peregrine.Proteus exceeds them in payload, endurance, and decision-making autonomy.The helicopter replaces onboard crew with advanced sensors and onboard computers. These systems process environmental data, assess conditions, and respond in real time.Engineers designed the software to allow independent operation in complex maritime environments.Proteus can carry payloads exceeding one tonne. This capacity allows it to deploy surveillance systems, sensors, or other mission equipment. The aircraft can operate in high winds and rough sea conditions.This capability reduces risk to personnel and frees crewed helicopters for other tasks.Built in YeovilLeonardo developed and manufactured Proteus in Yeovil, long regarded as the home of British helicopter production. The £60 million programme supports around 100 skilled UK jobs.Leonardo believes Proteus ranks among the world’s first full-size autonomous helicopters.Luke Pollard, Minister for Defence Readiness and Industry, described the flight as a landmark for UK innovation. He said the aircraft supports skilled jobs while advancing the hybrid navy outlined in the Strategic Defence Review. Pollard added that autonomy will help protect UK waters without exposing personnel to danger.Nigel Colman, Managing Director of Leonardo Helicopters UK, said Proteus changes how maritime aviation can operate.He said the aircraft can handle dull, dirty, and dangerous missions without risking human operators. Colman highlighted the achievement of seeing a UK-built autonomous helicopter take flight.Proteus plays a central role in the UK’s Atlantic Bastion strategy. The Ministry of Defence unveiled the programme last month. It aims to defend the North Atlantic and NATO allies using advanced hybrid forces.The helicopter can support anti-submarine warfare, maritime patrol, and surveillance missions. It can draw data from allied ships, submarines, crewed aircraft, and sensor networks.This approach improves detection and tracking across vast ocean areas.Commodore Steve Bolton, Royal Navy Deputy Director for Aviation Future Programmes, said the flight marked a key step in naval transformation. He said the milestone shows a firm commitment to autonomy and technological leadership.Predannack airfield, a satellite site for RNAS Culdrose near Helston, played a key role in the flight.The location also supports the UK’s National Drone Hub. Future testing will expand Proteus’ mission envelope as the Royal Navy pushes toward a hybrid air wing.
Leonardo Helicopters Proteus Helicopter Royal Navy Aviation Uncrewed Aerial Systems
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