Global Combat Air Programme
UK/Italy/Japan aircraft development and acquisition programme From Wikipedia, the free encyclopedia
The Global Combat Air Programme (GCAP; Italian: Programma Aereo da Combattimento Globale; PACG; Japanese: グローバル戦闘航空プログラム, romanized: Gurōbaru Sentō Kōkū Puroguramu) is a multinational initiative led by the United Kingdom, Japan, and Italy to jointly develop a sixth-generation stealth fighter. The programme aims to replace the Eurofighter Typhoon in service with the Royal Air Force (RAF) and Italian Air Force, and the Mitsubishi F-2 in service with the Japan Air Self-Defense Force.
| Global Combat Air Programme
Programma Aereo da Combattimento Globale グローバル戦闘航空プログラム | |
|---|---|
_left_rear_top_view_in_GCAP_booth_of_JA2024_at_Tokyo_Big_Sight_October_19,_2024_02.jpg) GCAP concept model (delta wing type) left rear top view in GCAP booth of JA2024 at Tokyo Big Sight 2024 | |
| General information | |
| Other name(s) | |
| Project for | Multirole fighter |
| National origin | United Kingdom Italy Japan |
| Manufacturer | BAE Systems Military Air & Information Leonardo S.p.A. Mitsubishi Heavy Industries |
| Designer | GCAP International Government Organisation (GIGO) |
| Issued by | Royal Air Force Italian Air Force Japan Air Self-Defense Force |
| Prototypes | Mitsubishi X-2 flown April 2016 - March 2018 'Excalibur' Flight-test aircraft expected in 2026 Flight demonstrator expected in 2027 |
| History | |
| Initiated | December 2022 |
| Expected | 2035 |
| Developed from | BAE Systems Tempest, Mitsubishi F-X |
| Predecessors | Eurofighter Typhoon, Mitsubishi F-2 |
On 9 December 2022, the governments of Japan, the United Kingdom, and Italy jointly announced that they would develop and deploy a common fighter jet, merging their previously separate sixth-generation projects: the United Kingdom-led BAE Systems Tempest developed with Italy, and the Japanese Mitsubishi F-X.[1][2] This was cemented with a treaty signed in December 2023 in Japan.[3]
There are around 9,000 people working on the programme worldwide, with 1,000 and more suppliers from across the three partner nations. 600 such suppliers are based in the UK, and 400 are based in Italy and Japan.[4]
Under the current timeline, the programme expects to begin the formal development phase from 2025, with a demonstrator aircraft to fly in 2027, and production aircraft to begin entering service from 2035.[5]
Background
Summarize
Perspective
Japan (F-X)
Japan, an island nation, has a disproportionately vast air defence identification zone given the size of its land territory, and it was expected that the country would have to protect it with a smaller fleet of fighters compared to those of its growing neighbours with much larger populations.[6] To address this issue, the Ministry of Defence decided in 2010 that Japan's next-generation fighter had to be highly information-based, intelligent, and capable of instantaneous response (i3 fighter). At the time, the fighter fleet of the Japan Air Self-Defence Force mainly consisted of the Mitsubishi F-15J and the Mitsubishi F-2. The former is a variant of the F-15, manufactured by Mitsubishi Heavy Industries (hereafter referred to as Mitsubishi) under licence, while the latter was developed by Mitsubishi and Lockheed Martin based on the F-16 in the 1990s. While the F-15J was set to be replaced by the F-35,[7] a replacement for the F-2 needed to be found before its planned retirement in the 2030s.
Following the USA's decision not to allow the export of the F-22 Raptor to any other country in 2007, Japan began looking for a domestic solution to field a new fighter aircraft to replace its Mitsubishi F-2 fleet. From the mid-2000s Japan began funding various research programmes involved in fighter design culminating in the Mitsubishi X-2 Shinshin experimental aircraft which took flight on 22 April 2016. This research and the data collected from the X-2 programme would feed the development of Japan's main fighter effort, the Mitsubishi F-X programme. The IHI Corporation completed a prototype for the XF9 engine in 2018. In 2018, after more than a decade since America's refusal to export the F-22, Lockheed Martin proposed a potential Japan-America collaboration project to develop the F-2 successor based on the F-22 and F-35, but this was rejected by Japan.[8]
United Kingdom & Italy (Tempest)
The 2010 Strategic Defence and Security Review (SDSR) outlined that the United Kingdom was committed to ensuring that by the 2020s, the RAF would be operating a fast-jet fleet composed of the recently delivered Eurofighter Typhoons, the then soon to be delivered F-35s, and complemented by a fleet of uncrewed combat and reconnaissance aircraft.[9] In the build-up to the 2015 SDSR, the UK began undertaking a two-year Future Combat Air System (FCAS) programme to examine the mix of platforms and systems that would be needed by the RAF beyond the 2030s, exploring options including new Uncrewed Combat Air Vehicles (UCAV) operating alongside an additional order of F-35s, extending the life of Typhoon, or designing a new crewed-fighter aircraft.[10][11]
Following the 2010 Lancaster House Treaties between the UK and France, the two nations agreed to cooperate in the pursuit of uncrewed systems as both parties would be seeking replacements for their Typhoon and Dassault Rafale fighters respectively around the same timeframe, the 2030s.[10][12] By 2012, both began joint funding a study alongside BAE Systems, Dassault Aviation to explore uncrewed technologies, and in 2014 both nations signed a £120 million contract alongside BAE, Dassault, Thales France, Selex ES, Rolls-Royce and Safran, with the UK and France each pledging £40 million of nation funding to begin a Future Combat Air System (FCAS) Feasibility Phase study. The study was to examine the concepts and options for the potential collaborative purchase of UCAS which would draw upon both nations' existing demonstration programmes at the time, specifically the Dassault nEUROn and BAE Systems Taranis. The study was to conclude by the end of 2016 and could have possibly led to the construction of a new demonstrator platform and flight-test campaign. The eventual goal was the procurement of the new joint UCAV capability in the 2030s along with the possibility of integrating the technology into a future crewed platform.[10][13] The 2015 SDSR then gave rise to the Future Combat Air System Technology Initiative (FCAS TI) which would eventually consisted of three core strands for the development of combat air technologies: international projects, which included the joint work with France; national projects; and an open mission system architecture project.[14] By May 2016, it was announced the feasibility study had led to a £1.54bn project to build a prototype of a UCAV by 2017.[15]
In July 2017, France and Germany agree to jointly examine building a replacement fighter for their Rafale and Typhoon fleets. This would eventual become the multi-national European Future Combat Air System which would include a new sixth generation fighter (will henceforth be referred to by the French designation: Système de Combat Aérien du Futur or (SCAF) to avoid confusion). This announcement initially cast doubt on the of the FCAS demonstrator programme and was attributed to the diplomatic fallout from the 2016 BREXIT referendum where the UK voted to withdraw from the European Union.[16] It was later clarified in early 2018 that the UK-France FCAS demonstrator programme was still ongoing, and that the intention was for France to continue to developed an uncrewed aircraft with the UK and a crewed fighter to replace its Rafales with Germany.[14][17]
On 16 July 2018 during the Farnborough Airshow, a mock-up of 'Tempest' was revealed, a BAE Systems led sixth-generation fighter programme that would be developed to replace the RAF's Typhoons in the mid-to-late 2030s.[18][19] This would be developed by an industrial consortium known as Team Tempest consisting of BAE, Rolls Royce, Leonardo UK, and MBDA UK working in conjunction with the Ministry of Defence and the Royal Air Force's Rapid Capabilities Office.[20] An new Combat Air Strategy was also revealed which outlined the importance of maintaining a technological advantage in air combat technologies during as well as maintaining the UK's sovereign air combat industry which as of 2016 supported £6.5Bn in annual turnover, and directed supported 18,000 jobs as well as 28,000 jobs in the wider supply chain. The strategy highlighted that failure to invest in domestic skills and technology would see the UK domestic air combat sector atrophy, leading to the loss of a critical sovereign capability.[21][22]
In February 2019, the earlier FCAS UCAV demonstration programme between the UK and France had seemingly been downgraded from an effort to potentially pursue a joint UCAV development and production initiative, to purely a technology demonstration and study effort, with the French instead choosing a closer defence partnership in air combat technologies with Germany instead.[23]
On 19 July 2019, Sweden signed a Memorandum of understanding (MoU) with the UK to work together to develop concepts and understanding for both nations' FCAS for the future of air combat platforms.[24] On 11 September during DSEI 2019, Italy formally joined the Tempest programme.[25][26] In 2020, Sweden and the UK 'firmed up' their MoU for FCAS and saw Sweden's SAAB establish a centre-of-excellence in the UK as part of a £50 million investment, However it was stressed that this was not an indication that Sweden or SAAB had signed onto the main Tempest effort.[27] On the 21 December 2021, The UK, Italy, and Sweden signed a trilateral MoU for cooperation on the FCAS.[28]
A number of new technologies were being explored for Tempest, including:[29][30]
- Directed-energy weapons
- Augmented reality cockpit - control scheme featuring little-to-no physical controls, instead displaying features virtually on the heads up display via the pilot's helmet. This would reduce aircraft weight, improve upgradability through a software-based approach, and provide additional display space for information outside of the typical flat-screen arrangement. This also includes examinations into interactivity such as motion-control and eye-tracking.
- Biometric and psycho-analytical monitoring - exploring pilot health monitoring during combat and training to identify issues such as stress, confusion, cognitive load, as well as hypoxia or G-LOC.
- Manned-unmanned teaming - crewed aircraft like Tempest working cooperatively with uncrewed aerial vehicles (UAVs) known as 'Adjuncts' (also known as Loyal Wingmen or Remote Weapon Carriers in other aircraft programs)
- Artificial intelligence (AI) - known as the Intelligent Virtual Assistant (IVA) that could assist with aircraft operations or data processing in certain operations or situations.
Much of the technology envisioned for use on Tempest would initially be fielded on two distinct testbed platforms. The first is 'Excalibur', a Boeing 757-200 modified by British firm 2Excel in conjunction with Leonardo UK to serve as a flight test aircraft to de-risk and validate the technologies being examined for use on the fighter including the aerodynamics of the fighter's nose section and testing the aircraft's sensor suite.[31][32] The second would be a crewed supersonic demonstrator aircraft announced in 2022 and expected to take flight around 2027, which would test, among other technologies, the integration of stealth compatible features.[33]
It was envisaged that the programme would agree to funding and manufacturing arrangements by 2025 with an expected in-service date for the aircraft in 2035.[29]
Development
Summarize
Perspective
Programme Initialisation
Discussions for both parties combining their respective fighter development efforts as a means of reducing their overall development costs began as early as 2017.[34][35][36] In December 2021, the first results of this endeavour appeared when the UK and Japan announced they would jointly cooperate to produce a demonstrator for a new fighter engine as well as the signing of a memorandum of cooperation to explore future air combat technologies together.[37] On 15 February 2022, a further agreement was reached between both nations to jointly develop sensor capabilities for their respective fighters known as the 'Japan and Great Britain Universal Advanced RF (radio-frequency) system' or 'JAGUAR'.[38]
In July 2022, Reuters reported from anonymous sources within both programmes that both parties were close to a deal that would combine both Tempest and F-X into a single joint programme.[39] On 9 December 2022, this was proven correct when it was officially announced by British Prime Minister Rishi Sunak that the Tempest and F-X programmes would merge into a single endeavour to procure a common multi-role fighter now called the "Global Combat Air Programme" (GCAP).[40][41][2] The resulting aircraft would also be expected to be available for export to further reduce the per-unit costs.[42]
The programme is envisaged as an equal partnership between the member nations. In the UK, BAE Systems will act as prime contractor and handle the airframe, Rolls-Royce the engines, Leonardo's UK division the electronics, and MBDA UK the weapons. In Japan, Mitsubishi Heavy Industries will act as prime contractor, with IHI Corporation handling the engines, and Mitsubishi Electric handling the electronics. In Italy, Leonardo S.p.A. will be prime contractor, with Avio Aero working on the engines, and MBDA Italy will also work on missile development.[43] By around 2024, detailed development and cost sharing for each company would be clarified, production to begin around 2030, and the first aircraft to be deployed in 2035.[43]
Additional membership efforts
Sweden
In late December 2022, two weeks after GCAP was announced, Japan and Sweden signed an ‘Agreement on the Transfer of Defence Equipment and Technology' that would explore deeper bilateral ties between both nations.[44] This also began speculation as to Sweden potentially becoming a member of GCAP as a means of replacing their Saab JAS 39 Gripen given that Sweden had previously been cooperating with the UK and Italy regarding the FCAS to which Tempest would have contributed.[28][44] However, in March 2023, several industrial figures involved in GCAP placed doubt on Sweden joining GCAP with some stating that Sweden's concepts for FCAS did not align with the views of the UK or Italy.[45]
In December 2023, a Swedish official during the International Fighter Conference announced that Sweden would not make a decision on a future fighter to replace the Gripen until 2031 following several national studies and related planning efforts.[46][47] It was also mentioned that Sweden walked away from bilateral and trilateral discussions with the UK and Italy a year before, but did not expand on the reasons for this decision. Whilst such a decision does not rule-out future Swedish participation in GCAP, delaying membership in the programme would risk losing industrial influence over design requirements.[45]
Saudi Arabia
On 11 August 2023, the Financial Times reported that Saudi Arabia was pushing to join the programme.[48] While the UK and Italy were reportedly open to the concept, Japan was firmly opposed, seeing Saudi membership as a complication to both further domestic efforts in allowing Japanese defence exports to foreign nations and to the overall timeline for the programme in successfully producing an in-service aircraft by 2035.[48][49] There were also concerns from defence sources that the security of sensitive technology might be complicated by Saudi membership as well as the questionable technical contribution that the Kingdom could feasibly provide to the programme.[48]
On 15 September, Leonardo's CEO said that Saudi Arabia would not become a core partner in GCAP, with Reuters reporting that in a response to the question of Saudi membership they said "The programme is (for) UK, Japan, Italy, that's it. There is nothing else at the moment".[50][51]
During the February 2024 World Defence Show in Saudi Arabia, Ahmad Al-Ohali, the governor of the Saudi government’s General Authority for Military Industries (GAMI) stated that the kingdom remained "very keen" on participating in GCAP but stressed that this can only happen if "localisation" can occur and that Saudi Arabian industries are meaningfully involved in the program. This is seen as part of a larger national effort to ensure that at least 50% of all defence expenditure is reinvested domestically by 2030.[52]
In late July 2024, Leonardo chief executive Roberto Cingolani said he would be “personally very open” to Saudi Arabia joining if Britain decides to reduce its commitment, “especially if there were some reallocation of resources” after the UK’s new Labour government completes its defence spending review.[53]
At the 2024 G20 Summit in Brazil, leaders from Italy, the UK, and Japan advanced discussions on GCAP, including the potential participation of Saudi Arabia. Italian Prime Minister Giorgia Meloni, British Prime Minister Keir Starmer, and Japanese Prime Minister Shigeru Ishiba focused on cooperation frameworks during the negotiations, addressing key issues such as cost-sharing and technology transfer. The talks are expected to conclude by the end of the year, with Italian Foreign Minister Antonio Tajani confirming that Saudi Arabia is likely to join the programme.[54]
On 13 February 2025, Lorenzo Mariani, Leonardo’s co-director general told Defence News that potential Saudi Arabian participation in GCAP could be enhanced by increasing its existing aerospace capabilities. Following on from an memorandum of understanding signed in January to tighten industrial cooperation, by working in cooperation with Leonardo regarding NH90 helicopters and/or an additional order of Typhoons, establishing either an assembly or production line for core components of the aircraft would allow the Kingdom to build up the know-how before potentially taking a productive role on GCAP.[55]
Germany
On 1 November 2023, The Times reported that Germany was considering abandoning the €100 billion SCAF programme with other core members France and Spain, and would instead look to join GCAP.[56] This was said to be due to ongoing problems within the SCAF programme regarding intellectual property and industrial participation as well as tensions spilling over from other European programmes such as on matters of air defence and Germany's procurement of the F-35A. However, Shepard News reported that this leak might potentially be a German negotiating tactic to pressure France and Spain to concede to Germany's demands for the programme. There was also scepticism as to whether Germany would even be able to join GCAP, at least to the same level of membership they had within SCAF, especially given previous statements by GCAP industry heads.[57][50][51]
Australia
In December 2024, it was reported that the United Kingdom was approaching Australia for involvement in the programme.[58] On 27 March 2025, it was confirmed that an informational briefing from the GCAP consortium to officials of the Royal Australian Air Force (RAAF) occurred during the Avalon Australian International Airshow. However, Air Vice-Marshal Nicholas Hogan, head of air force capability for the RAAF said that whilst GCAP was exciting, there were still too many unknowns at this stage to present options to the Government regarding the aircraft.[59][60]
Joint Venture and Corporate Structure
GCAP international Government Organisation
On 12 September 2023, a trilateral collaboration agreement was signed between all three parties to support the long-term working arrangements and capability requirements of the programme.[61] Three months later, on 14 December 2023, and twelve months after the initial agreement to pursue GCAP, the tri-lateral effort was cemented with the signing of an international treaty for the development of the aircraft in Tokyo. This treaty would see both the collaborative governmental headquarters and industrial hub for the effort be based in the UK, confirming earlier reports,[50] with Japan providing the first CEO and Italy the first leader of the business entity. This would culminate in the formation of the GCAP international Government Organisation (GIGO) which would be responsible for managing the development of the fighter once the nations' respective political bodies gave their approval.[62][63] The Defense of Japan 2024 white paper outlined that the GIGO would first see technical officials dispatched as technology experts and a sophisticated and secure working environment established to ensure a smooth and reliable development process for the aircraft. Meeting with the various companies and industries contributing to the programme as well consultations with representatives of each of the governments involved will take place daily either by face-to-face meetings or through video conferencing.[64]
On 6 March 2024, Japanese Prime Minister Fumio Kishida told the House of Councillors budget committee that additional defence-related export reforms would be required to reduce the production costs involved in GCAP, support Japan's national security, and to ensure that Japan can be seen internationally as a reliable defence partner. Additionally it was reported that the Prime Minister also highlighted that Italy and the UK "consider promoting the transfer of finished products to third countries to lower procurement prices as an important element of their contribution, and [they have] requested that Japan take a similar response.”[65] On 15 March 2024, Japan's government agreed to the revision of stringent defence export rules which would allow for the export of defence equipment, including the jointly developed fighter jet, to other countries that Japan has signed defence equipment and technology transfer deals with whilst also being free of ongoing conflict.[66][67] However Komeito of the ruling coalition expressed reservations about the decision in line with the party's pacifist platform.[66] In May 2024, Japan's House of Representatives, followed by the House of Councillors on June 5th 2024, approved the signing of the Tokyo treaty formally establishing the GIGO. [68][69]
The Defense of Japan 2024 white paper outlined Japan's revisions to its policy on the transfer of defence equipment and technology brought about by Japan's membership in GCAP. On the question of transferring the finished aircraft to third countries (countries outside of GCAP membership), the document states that joint development programmes like GCAP come with the assumption of equal contributions from all parties regarding requirements and performance and that because the UK and Italy "consider promoting the transfer of finished products to third countries an important contribution, they also expect a similar response from Japan". Therefore, to ensure this remains compatible with requirements of the UK and Italy, and that the aircraft could be exported to further reduce costs (economy of scale), a mechanism had to be created to enable such transfers. To this end, the current Three Principles on Transfer of Defense Equipment and Technology and its Implementation Guidelines originally formulated in April 2024 were revised. These revisions included guidelines covering GCAP and created "three restrictions" regarding GCAP exports:[64]
- At present, direct transfers between Japan of GCAP material are restricted to finished products only.
- Transfers are restricted to nations who have signed international agreements obligating the use of Japanese defence equipment transferred in a manner consistent with the purposes and principles of the Charter of the United Nations.
- Transfers can not be made to a country where combat is currently deemed to be taking place as part of an armed conflict.
On 14 October 2024, Luke Pollard the Under-Secretary of State for Defence announced that the UK had ratified the GCAP convention to establish the GIGO in September 2024.[70] On 12 November 2024, the Italian Parliament ratified the GCAP convention.[71]
On 15 January 2025, the UK Ministry of Defence (MoD) announced that the GIGO would be headquartered in Reading and led by its first Chief Executive Mr Oka Masami from Japan.[72]
Joint Venture
On 13 December 2024, the three national industrial partners for the GCAP announced the formation of a business joint venture that will be accountable for the design, development, and delivery of the aircraft by the mid-2030s and throughout its expected service life beyond 2070. BAE Systems, Japan Aircraft Industrial Enhancement Co Ltd (JAIEC), and Leonardo will each hold a 33.3% stake in the venture. The agreement will now go for approval to the national regulatory authorities before it is formally established in mid-2025; the company will be headquartered in the UK alongside the GIGO.[73][74]
In December 2024, Leonardo stated that it had already signed GCAP-related R&D contracts worth €100 million with subcontractors in Italy, whilst the Italian MoD had earmarked €8.8 billion to the programme. Leonardo outlined that it would be the leader in four domains for the aircraft's development: flight system integration, weapons integration, training integration, and two activities under the domain of mission system: the weapons effect management system and the flight control system. Leonardo emphasised a new way of collaborating on the development of all key activities linked to sixth-generation aspects, using an innovative model that will see all three national entities working together but with the leading nation in that domain coordinating the different areas, with clusters of engineers from all three nations working together across different sites. Meanwhile, more conventional elements of the aircraft will be assigned to single nations for development.[58]
The Joint Venture will have four main sites one in each nation, including the headquarters in the United Kingdom. The main Italian site will be Torino Caselle already the home of the Eurofighter assembly line, but the work will be spread across Leonardo sites in Rome, Pomezia, Florence and Nerviano for electronics and avionics. Of the 9000 people working on GCAP at the current stage, 3000 of them are Italian. Leonardo highlighted the importance of cyber-security and cyber-engineers to the programme, both for aircraft itself, but also for the facilities developing the aircraft.[58]
Concept phase
Technology demonstrators
Tempest Combat Air Demonstrator
In June 2023, the UK's industrial partners shared progress on developing the 2027 technological demonstrator already contracted under the Tempest programme. Initial flight trials flown on simulators at BAE's facility in Warton had by this time conducted 150 hours of simulated flight-time, with BAE also claiming that through the use of auto-coding, critical system software used and tested in the simulator had been created in a matter of days rather than weeks. Meanwhile, Rolls Royce announced that it had used a EJ200 engine to test a new S-shaped stealth intake/duct developed by BAE. Finally, Martin Baker and BAE had conducted initial ejector-seat trials using a mock-up cockpit.[75][76]
In July 2023, BAE Systems outlined that a total of 60 technology demonstration projects were underway. In reference to the actual demonstrator aircraft, BAE emphasised the need to prove the stealth characteristics and weapon bay operation, but also highlighted that BAE was still open to either a twin or single engine design.[77]
On 24 July 2024, following the passing of a critical design review, BAE Systems had reportedly already begun manufacturing and assembling of the flyable technology demonstrator. Most of the aircraft's parts will be produced in the UK with the involvement of over 100 suppliers. The manufacturing process had utilised a hot isostatic press to reduce material waste and lead times associated with forgings, as well as additive manufacturing. The demonstrator is expected to feature an integrated weapons bay, the first for a British-made aircraft since the Blackburn Buccaneer, with MBDA UK assisting with weapons integration. Meanwhile, Rolls-Royce will be providing two EJ200 engines donated by the Ministry of Defence to power the demonstrator. The aircraft will also be the first aircraft to utilise the Pyramid avionic design architecture. First disclosed by the Ministry of Defence in October 2021, Pyramid is a reusable open-system mission architecture designed to make avionic upgrades to aircraft simpler, cheaper, and quicker by focusing on a software-based approach with inbuilt compatibility with other platforms running the Pyramid Reference Architecture.[78][79] Additionally, simulated test-flight time of the demonstrator were now reportedly totalling 215 hours. Whilst the development of this technology demonstrator is a UK sovereign effort, the lessons learned will feed into GCAP much like with Japan's Mitsubishi X-2 years earlier. Dimensions for the technology demonstrator have not been revealed but, due to the size of its engine ducts publicly showcased by BAE Systems, it is estimated the aircraft is likely a third larger than a Eurofighter Typhoon.[80][81]
Excalibur Flight Test Aircraft
On July 14 2023, the RAF awarded Leonardo UK and 2Excel a £115 million contract to enable the Excalibur Flight Test Aircraft (FTA) to transition into second phase development. This would see the purchase of a second Boeing 757 that would be modified into Excalibur, building upon the analysis conducted from the deconstruction of the first 757 airframe between 2021 and 2022. Excalibur is expected to commence testing in 2026.[82]
On 9 December 2024, it was announced that the Excalibur FTA had successfully completed its first phase of modification and flight testing with the aircraft having been fitted with side and belly pods for hosting systems such as the Integrated Sensors, Non-Kinetic Effects (ISANKE) and Integrated Communications Systems (ICS), developed by Leonardo UK and its international partners. Excalibur is also expected to be fitted with a fighter jet-style nose cone to integrate radar demonstrators.[83]
Engine demonstrators
During Farnborough Airshow 2024, Rolls-Royce stated that it was progressing with the full-scale ground-based engine demonstrator for the fighter. Developed in concert with Italy's Avio Aero and Japan's IHI Corporation, the demonstrator is designed to initially test technologies developed by the three companies for compatibility, as well as common design tools, design processes, and audit processes for the production engine. In the future, the demonstrator is expected to serve as a test-bed for upgrades to the production-model power and propulsion system of the fighter.[84]
Aircraft design concepts
The initial concept art for the aircraft shown following GCAP's announcement in 2022 was of a large, twin-engine, low-observable aircraft with a unique modified cranked delta-wing configuration. However, on 22 July 2024, at the Farnborough Airshow, an updated airframe concept design was unveiled alongside the aircraft's first 1:1 scale model. The new model showed a redesigned wing shape to that of a true delta and increase in wing size indicative of an emphasis on increased fuel capacity (range), weapon capacity, and speed.[85][86][87] Whilst there has yet to be official dimensional characteristics released for the fighter, Janes' Gareth Jennings in attendance of the unveiling talking of the scale model drew comparison to the 19 metre wingspan of the F-111 Aardvark.[88] GCAP officials stressed that this was still a concept model and therefore not representative of the finished design.[89] Officials also highlighted that tens of thousands of people could be involved with GCAP over the programme's decades-long life and shared their belief that full-rate production for the aircraft would stretch beyond 2060. Herman Claesen of BAE Systems indicated that the current design philosophy for the aircraft is that it is not intended to have any designated full-operational capability (FOC) dates. Claesen explained that aircraft's open-architecture design simplifies upgrades throughout the aircraft's service life compared to legacy air systems.[89]
On 5 February 2025, the UK revealed the Tornado 2 Tempest project (T2T), which saw components from the RAF's since retired Tornado aircraft fleet recycled into new complex components which could be used for the future fighter. The initiative was formed to examine whether strategic materials still present in surplus MoD assets such as high quality steel, aluminium and titanium could be atomised into powders, known as “feedstock”, for additive manufacturing to make new parts. The potential benefit being to increase the accessibility of critical and high-value metals by reusing what is already present in existing stockpiles that could now be remade in lighter, stronger, and long lasting forms than what could be previously possible with traditional forging methods. T2T demonstrated the cleaning and atomising of titanium from a Tornado's jet engine compressor blades from a low-pressure air compressor which was then used to 3D print new compressor blades and nose cone which Roll-Royce installed into an Orpheus test engine which then successfully ran at test-conditions (Orpheus being a Roll-Royce programme exploring new design, development, and manufacturing concepts for defence-related propulsion systems).[90][91] T2T also demonstrated a Digital Product Passport system, capturing and recording material provenance and lifecycle data which potentially enables more informed decisions around material allocation and protect against the use of counterfeit materials.[92]
On 12 March 2025, It was reported that Leonardo expects that 350 aircraft will be ordered by 2035. For comparison, combining the Typhoon and F-2 fleets of Italy, the UK, and Japan yields a minimum requirement for 290 airframes from the three core partner nations.[93][94]
On 1 April 2025, during an interview an MoD representative detailed some expected capabilities of the aircraft including carrying "roughly double an F-35As [weapon] payload", carrying sufficient sensor capability to independently form a kill-chain, and carrying the necessary computing power for controlling the system of systems (i.e. low-cost drones) whilst deep inside hostile territory where connections to traditional support assets like the E7-Wedgetail may be restricted, all whilst remaining survivable. In regards to the aircraft's range, it may be able to cross the Atlantic on internal fuel unlike the Typhoon which requires refuelling three or four times.[95]
System of systems
As of 2024, GCAP is solely focused on the development of a sixth generation fighter aircraft, with the partner nations not having publicly stated their intention to cooperate on wider air combat developments under the system of systems approach taken by similar programmes like the European FCAS. As such, the development of wider assets, namely uncrewed systems has so far been a sovereign effort for each nation (e.g. UK's LANCA programme).
In mid-March 2024, during a press briefing, Leonardo's CEO Roberto Cingolani criticised the UK for lack of transparency regarding the details for the procurement of the wider System of systems for GCAP that the crewed fighter component would contribute to and that there was still uncertainty regarding the manufacturing and development responsibilities of the various partner companies.[96]
In July 2024, during the Farnborough Airshow, Airbus had reportedly suggested that its Wingman Unmanned Adjunct (WUA) could be developed for GCAP with help from the programme's industrial partners. Airbus also stressed that this would not conflict with its existing efforts as a lead industrial partner for FCAS as the WUA is an entirely separate and self-funded effort.[97]
Similar programs
- Chengdu J-36 – (China)
- Shenyang J-50 – (China)
- Next Generation Air Dominance (NGAD) - US Air Force's sixth-generation fighter programme.
- F/A-XX - US Navy's sixth-generation fighter programme.
- Future Combat Air System (FCAS / SCAF) - European (French / German / Spanish / Belgian) sixth-generation fighter programme.
See also
External links
- Official website at Leonardo – Archived 28 March 2025 at the Wayback Machine
- Official website at BAE Systems – Archived 16 January 2025 at the Wayback Machine
References
Wikiwand - on
Seamless Wikipedia browsing. On steroids.