GCAP joint contract awarded to Edgewing for next-generation fighter

The GCAP Agency has awarded the first international GCAP joint contract to Edgewing, a tri-national industrial joint venture. This agreement marks a major milestone in the development of a next-generation stealth aircraft for the UK, Italy, and Japan. 

By Sam Cranny-Evans, Editor of Calibre Defence, published April 6, 2026. 

The GCAP Agency placed a £686 million GCAP joint contract with Edgewing, according to an April 2 press release. This contract represents the first joint international agreement since the Global Combat Air Programme (GCAP) began in 2022. It focuses on essential design and engineering activities for the trilateral partnership. Consequently, the three nations can now build momentum and accelerate the delivery pace for the future combat aircraft. 

Previously, the partner nations conducted activities under separate national contracts. However, this GCAP joint contract signifies the transition into a fully-fledged international programme, the press release states.  

Edgewing, which leads the design and development, consists of industrial partners from the UK, Italy, and Japan including:  

• BAE Systems
• Leonardo 
• Japan Aircraft Industrial Enhancement Co. Ltd. (JAIEC) 

Masami Oka, the GCAP Agency Chief Executive, stated that this moment is important because it unifies the program’s efforts. 

Accelerating GCAP development 

The GCAP joint contract aims to deliver an innovative stealth fighter equipped with cutting-edge technologies. These technologies will help the partner nations meet evolving global threats while supporting their sovereign industries. The latter is an important aspect to note; the skills and technology needed to build fast jets is very specific and hard to recover. And, despite what many like to think and present, the need for jets is unlikely to disappear in the next 30 years. So, retaining those unique capabilities is a matter of national concern.  

Marco Zoff, the Chief Executive Officer of Edgewing, noted that the joint venture has ramped up operations quickly. He attributed this success to a shared purpose and strong collaboration with the GCAP Agency. Because of this investment, the engineering teams can now focus on the complex integration of sensors and flight systems, he said. However, that does not mean the programme is set to deliver, there are significant risks, as some analysts have highlighted. 

Financial scrutiny and programme risks

Justin Bronk, a Senior Research Fellow at the Royal United Services Institute (RUSI), has frequently highlighted the significant financial commitments required. Writing in 2023, he suggested that for GCAP to be operationally credible, it would be unlikely to cost less than the Eurofighter Typhoon. He was referencing the unrealistic expectations that digital engineering and new techniques could reduce the design costs below those of Typhoon. 

According to Bronk’s analysis, the development and procurement of the Typhoon cost the partner states approximately £100 billion in current terms. Therefore, if GCAP follows a similar trajectory, the UK and Japan might each need to contribute around £40 billion. Bronk has warned that without realistic cost estimates, the programme risks distorting wider Ministry of Defence planning. 

Moreover, the timeline for initial operating capability in 2035 remains ambitious. The UK government previously committed £12 billion to the project, but some reports suggest costs could rise to £16.2 billion. Consequently, Bronk has noted that any delays in funding from partner nations could make the project avoidably expensive. 

Calibre comment: GCAP and opportunity costs

 It is not secret that the British MoD is struggling to finance all of its planned procurements. This has been recently borne out over rumours that shipbuilding would be cut. It is not alone in facing these issues, and Italy and Japan both have their own ambitious modernisation plans that will demand significant investment. The challenge is that they must simultaneously resource their current capability, which is lacking, and invest in the future. For the UK, for example, its Type 45 air defence destroyers are a constant source of costs and readiness issues. But the British government must also look to its replacement – the Type 83. At the same time, the F-35B fleet is woefully under-resourced in terms of weapons integration. The Typhoon fleet is much better, but it is unlikely that they could sustain anything like the 2011 Libya campaign, let alone the US campaign against Iran.

However, the UK must invest in GCAP. If it does not properly fund the project, it risks losing its domestic production capabilities for fast air altogether. That would likely be far more expensive in the long-run. This is the challenge with many future capabilities. They are necessary, critical even, but they come at a time when the capability gaps within the wider force are so significant that they also cannot be ignored.  

• Delay, defer, repeat: UK shipbuilding plans at risk as MoD scrambles to close £16.9 billion funding gap  
• No Spear 3 for British F-35B before 2030  
• “The Answer is No”: Knighton Admits SDR and Current Programmes Don’t Mix  

The lead image shows a model of the GCAP fighter on display at an exhibition. Credit: Leonardo.