BAE Systems Unveils Brontanax: Britain's First Sovereign Collaborative Combat Aircraft

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At the Farnborough International Airshow 2026, BAE Systems unveiled Brontanax, the UK's first fully sovereign Collaborative Combat Aircraft (CCA), which is scheduled to fly in 2027. The Brontanax — whose name translates as 'Thunder King' — is a loyal wingman drone designed for use by the United Kingdom, roughly the size of a BAE Hawk trainer jet.

A full-scale mock-up of the platform was unveiled at FIA 2026. Brontanax is BAE's answer to the UK's StormFighter CCA requirement. The UK Government has committed £300 million to the StormFighter programme through its Defence Investment Plan, with the ambition of fielding Europe's first sixth-generation air force capability.

The prototype was built in secret at BAE Systems' facility in Warton, Lancashire. More than 500 BAE Systems employees have been involved in the aircraft's development to date, working with over 75 large companies and SMEs from across Britain's aerospace sector. BAE Systems states that Brontanax builds on more than 25 years of company experience in uncrewed and autonomous systems, and has been developed through its FalconWorks team and funded to date through self-funded research and development. That internal investment has totalled "several hundred million [pounds]", with initial concept work having been launched in 2022.

Although the new platform is seen as a demonstrator by the RAF, for BAE the aircraft is a "pre-series, pre-production prototype" of an aircraft it wants to put into serial production and field with the UK or allies, according to Dave Holmes, the director of BAE's FalconWorks aerospace research and development arm.

The concepting of the aircraft first started in 2022 and involved an 18-month period where BAE drew on requirements and operational analysis "to try and come up with a solution that we feel matches the balance of survivability, performance, affordability, and deployability," according to Holmes.

Power-on is planned for Q3 2026, followed by ground trials in the first half of 2027, before planned flight trials in the second half of the year. The prototype is set to fly alongside a Typhoon by the end of 2027.

The aircraft draws on experience gained through the earlier Taranis technology demonstrator programme, which explored low-observable autonomous combat air technologies. According to Holmes, "some of the genius that's going in this prototype system actually comes from our Taranis activity," referring to trials of an unmanned combat air vehicle demonstrator conducted in 2013.

BAE Systems is aiming at a CCA with 70–80% of the Typhoon's capabilities, but at 20–25% of the cost. The platform has been designed to operate alongside Typhoon, F-35B and, eventually, the UK-led GCAP combat aircraft.

Technical Breakdown

Platform class: Collaborative Combat Aircraft (CCA) / loyal wingman

Size: Similar in size to a BAE Systems Hawk aircraft.

Maximum Take-Off Weight: Greater than 5 tonnes.

Airframe design: The notably stealthy aircraft features large-area trapezoidal wings, cropped outward-canted vertical stabilizers, a prominent chine line, a faceted fuselage, a shovel-like nose, and low-observable apertures. The drone has a wedge-shaped ventral air intake, partially shrouded by a prominent 'lip', feeding a serpentine inlet.

Propulsion (current demonstrator): The aircraft is currently driven by an unspecified engine produced by the US-based Williams International, which is known for producing jet engines for cruise missiles and small aircraft.

Propulsion (production roadmap): The longer-term solution is based on integration of Rolls-Royce's Orpheus powerplant family. The partnership with Rolls-Royce is intended to enable BAE Systems to upscale the thrust output of the CCA.

Payload / weapons: Brontanax is intended to provide electronic warfare and precision strike capabilities against airborne and ground targets. The payload bay could host systems like Blizzard, a decoy and suppression effector developed by BAE Systems' FalconWorks in collaboration with Lockheed Martin's Skunk Works. The drone is confirmed compatible with all current weapons in service with the RAF.

Architecture: The aircraft has been developed with an open architecture and modular design that, according to the company, can be adapted as threats evolve.

Autonomy level / control: The drone can be operated by a Typhoon pilot or a mission commander on the ground. The platform is designed for Crewed-Uncrewed Teaming (CUT) operations.

Carrier compatibility: BAE says the Brontanax could be adapted for carrier operations and would not need the use of a catapult, making it suitable for use on the UK's Queen Elizabeth-class carriers, though it would probably need some arrestor gear.

Production site: The aircraft was designed and built by engineers at BAE Systems in Warton, Lancashire, the company's UK combat air site.

Target service entry: Planned availability to enter service before the end of the decade.

Industry Impact

For BAE Systems and UK sovereign industry: Brontanax represents BAE's clearest industrial statement yet in the CCA market. Building on more than 25 years of experience in uncrewed and autonomous systems, Brontanax was designed and delivered through BAE Systems' FalconWorks team and funded entirely through the company's own R&D investment to this point. The company invested more than £400 million in self-funded R&D in 2025. The decision to characterise Brontanax as a pre-production prototype rather than a technology demonstrator signals an intent to move rapidly toward a production contract.

For the RAF and MoD: Exports are a crucial element for both BAE and the RAF; future CCA platforms will adopt the US government reference architecture so that they can become more accessible and controllable for export customers. While designed for British use, the platform will also be available to export customers, and its modular design will enable the rapid integration of a variety of munitions, electronic attack/warfare payloads, and sensor suites.

For Rolls-Royce: The Brontanax programme gives Rolls-Royce a high-profile near-term application for its emerging Orpheus turbofan family. With an eye on sovereign capability, Rolls-Royce will provide the engine for the production system, drawing on its ongoing Orpheus technology programme. Winning the propulsion contract for a volume CCA programme could anchor the Orpheus family as a standard for the UK and its allies.

For the wider CCA competitive landscape: Other companies, including more established CCA programmes, will also be competing for the Royal Air Force's Storm Fighter requirement. BAE's decision to field a physical prototype, rather than a rendered concept, meaningfully raises the bar for competing bids. The aggressive flight timeline underscores the RAF's determination to become "Europe's first 6th Generation Air Force", with a sixth-generation formation needing to be fielded before 2030 to achieve that ambition.

For the naval aviation sector: Under Project Vanquish, the Royal Navy plans to demonstrate a fixed-wing, short takeoff and landing autonomous collaborative platform from a Queen Elizabeth-class aircraft carrier before the end of 2027. BAE Systems may well plan to adapt Brontanax for this naval requirement. If realised, this would substantially expand the addressable market for the platform beyond the RAF.