Nyan is a British low-observable one-way effector UAV developed by Callen-Lenz under BAE Systems' FalconWorks umbrella. Public reporting connects the small turbojet or microturbine-powered air vehicle to a combat debut in Ukraine, British Army deep-fires service, Threod CATA B catapult launch, and 2026 UK land-and-sea trials.
Aviation Week reported in June 2026 that Nyan had made its combat debut in Ukraine before entering limited British Army service; other public reporting described the wartime customer as undisclosed but believed to be Ukraine.
Role detailsNyan sits in the low-cost one-way-effector tier rather than a recoverable reconnaissance-UAV family. Aviation Week describes a carbon-fiber air vehicle with more than 150 km range, UK assembly, and domestic component sourcing where possible, while BAE Systems later identified the aircraft as a 2.9 m-wingspan UAS.
Callen-Lenz began the design in 2022 after UK requirements emphasized payload, speed, and price point for an expendable strike air vehicle.
The February 2026 UK MoD notice said the Nyan OWE had already been tested, assured, and purchased by the Army before wider Field Army introduction.
BAE Systems said the British Army used Nyan during Exercise Spring Storm, and the Royal Navy said sailors and army personnel later launched it from XV Patrick Blackett while the ship was underway.
Callen-Lenz's chief executive told Aviation Week the airframe could potentially accept other payloads, different warheads, or scaled range and endurance variants.
Sources: BAE's Nyan One-Way Effector To Join British Army After Ukraine Debut; PDA2 Transparency Notice OWE Nyan; UK Armed Forces trial British Strike Drone across land and sea; Royal Navy launches strike drone at sea in landmark trials.
Public reporting connects Nyan to Threod's CATA B launcher for British Army one-way-effector operations.
| Launcher | Launcher type | Launch evidence |
|---|---|---|
 | Pneumatic catapult launcher | Callen-Lenz says Nyan was fielded alongside the Estonian-built CATA B launcher at Exercise Spring Storm, and Aviation Week reports that Nyan was combined with a Threod-supplied catapult. Sources: UK-Estonia collaboration in action: Nyan at exercise SPRING STORM, BAE's Nyan One-Way Effector To Join British Army After Ukraine Debut |
Aviation Week reported that Callen-Lenz began Nyan development in 2022 against UK Ministry of Defence parameters for payload, speed, and price point.
Sources: BAE's Nyan One-Way Effector To Join British Army After Ukraine Debut
The UK MoD transparency notice listed Callen-Lenz Associates Limited as supplier for a Nyan OWE contract valued at £4,996,500 excluding VAT.
Sources: PDA2 Transparency Notice OWE Nyan
Callen-Lenz announced Nyan's first British Army appearance in Estonia during Exercise Spring Storm, fielded alongside the Estonian-built Threod Systems CATA B launcher.
Sources: UK-Estonia collaboration in action: Nyan at exercise SPRING STORM
Aviation Week reported that Nyan had made its combat debut in Ukraine and was entering limited British Army Royal Artillery service.
Sources: BAE's Nyan One-Way Effector To Join British Army After Ukraine Debut
BAE Systems and the Royal Navy said UK forces had tested Nyan for land and maritime operations, including a launch from XV Patrick Blackett during Exercise Neptune Reach after the Spring Storm army trials.
Sources: UK Armed Forces trial British Strike Drone across land and sea, Royal Navy launches strike drone at sea in landmark trials
