The Nyan One Way Effector (OWE) was launched from the experimental test vessel XV Patrick Blackett, sailing off the south coast of England.
The trials, which will take place in early June 2026, are assessed as the next step towards operational integration of One Way Effector (OWE) drones into the UK Armed Forces, according to imaging data. Designed by BAE Systems subsidiary Callen-Lenz, the Nyan OWE was previously tested on land by British Army personnel in Estonia.
The launch, organized under Operation Neptune Reach, brought together forces from the Royal Navy, Royal Air Force and British Armed Forces. Launching OWE drones from Royal Navy ships was earmarked as the first objective of Project VANTAGE, with later stages focusing on spreading OWE launch capabilities to ships across the fleet, including the Queen Elizabeth class aircraft carriers. This is a key part of the MoD’s aim to transform the Royal Navy into a ‘hybrid navy’, utilizing a bespoke mix of crewed and unmanned systems, with the motto ‘crewed when necessary, unmanned where possible’.
.@BAESystems @callenlenz Nyan One-Way Effector is now available at @XVPTBK https://t.co/KR68KfHm3I pic.twitter.com/VA8vH69274
— Navy Lookout (@NavyLookout) July 3, 2026
Rear Admiral David Burton, sponsor of the Royal Navy’s maritime OWE capability, said: “This trial takes a significant step forward in delivering a maritime one-way effector at speed.
“Under Project Vantage, we plan to integrate these capabilities into a hybrid Navy, combining manned platforms and unmanned systems to extend reach, increase speed, and enhance lethality. Working closely with our Army colleagues, this effort demonstrates how we are accelerating the Atlantic Strike concept into a practical, deployable capability for the fleet,” he added.
Luke Pollard, Secretary of State for Defense Industry, said: “The UK is serious about transitioning to a hybrid navy with new, powerful drones at the heart of the Royal Navy. By combining the expertise of the Army and Navy with field strike drones aboard sea-going ships, we are accelerating the capabilities our forces need to stay ahead of their adversaries.”
Designed for precision strike missions, Nyan OWE is powered by small ‘microturbine’ jet engines and has a wingspan of 2.9 metres. In its February 2026 direct award contract notice, the Ministry of Defense noted that it was the only off-the-shelf product registered on the UK Military Aircraft Register and said it was “the only viable option to enter service in the short term on safety and legality grounds.”
Matt Foster, CEO of Callen-Lenz at BAE Systems, said more than 1,000 Nyan devices have been produced so far and have proven their performance through land testing. “We have now successfully demonstrated our ability to add real value in the maritime environment as well. These trials reflect the strong collaboration across services and industry, highlighting the speed with which we can deliver innovation to advance the UK’s integrated multi-domain defense capabilities.”
The drone was launched from a rail mounted on Patrick Blackett’s rear deck and then launched toward a predetermined target. Test data is currently being analyzed by specialist Royal Navy teams and the Royal Air Force Air and Space Warfare Center (ASWC).
Patrick Blackett, 15 years old
The futuristic all-black test vessel XV Patrick Blackett was delivered to the Royal Navy in 2022 and officially began acceptance trials in February 2023. Although it is not a Royal Navy commissioned ship, it is crewed by Royal Navy personnel and is wholly owned by the British Government.
Its key role will be to support the testing of unmanned surface and underwater vessels, which will become a key part of the Royal Navy’s overall fleet structure in the future.
A new RN construction plan as unconventional as Fisher’s New Navy is confirmed. This was revealed in the recent Frazer-Nash NDP rendering (below).
category ?? The Common Combat Vessel, a small crew command hub (perhaps based on the AH140?), is expected to be operational until the early 2030s.
Type 91 – Unmanned… https://t.co/NJcFFPFeE3 pic.twitter.com/l2mpWVInfI— JamesFennell MBE (@FennellJW) June 29, 2026
The vessel’s spacious, open rear deck space is ideal for frequent configuration changes to support a variety of programs. This provides ample space for a rail launcher. In previous exercises, the deck area was also used as a target area for dummy bombs dropped from drones.
A less visible but very important additional part of XV Patrick Blackett’s mission is to pioneer the use of quantum navigation equipment at sea. These systems use atomic interferometry to provide inertial navigation. This means it can provide answers to problems caused by vulnerabilities in GPS. Quantum navigation also works in places where GPS is not possible – under the sea, underground, or in parts of the world where access to a reliable Global Navigation Satellite System (GNSS) cannot be guaranteed.
The UK’s first airborne quantum navigation system test took place at MoD Boscombe Down in 2024, with support from BAE Systems and Qinetiq.
