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**TL;DR:** The FCAS fighter airframe is effectively dead — Dassault gave Airbus weeks to agree or walk. But the engine programme under EUMET (Safran–MTU–ITP Aero) remains the best-functioning FCAS pillar, and both partners want to keep it alive regardless of the airframe outcome. The question is no longer whether Europe can build a 6th-gen engine. It is whether the engine will have a European aircraft to power. ## The airframe is dead. The engine is not. On 1 April 2026, Dassault CEO Eric Trappier gave Airbus "two to three weeks" to reach agreement on the Next Generation Fighter (NGF) airframe — or the programme dies. Germany has set a mid-April deadline tied to federal budget decisions. The Dassault–Airbus workshare dispute, which has paralysed NGF development since summer 2025, appears terminal. The engine programme tells a different story. EUMET GmbH — the 50/50 joint venture between Safran Aircraft Engines and MTU Aero Engines, established in April 2021 and headquartered in Munich — has been consistently described as the best-functioning element of the entire FCAS architecture. MTU CEO Johannes Bussmann stated in February 2026: "On the side of the engine manufacturers Safran and MTU, things go very well." More importantly, Bussmann has explicitly committed to maintaining the Safran–MTU partnership even if France and Germany build separate fighters — the "two-fighter" option backed by Airbus CEO Guillaume Faury and endorsed by BDLI and IG Metall in a February 2026 position paper. "The engines would probably be slightly different, and the numbers produced would be smaller," Bussmann acknowledged, "but it would be cheaper if the two engines came from the same consortium than if they came out of two separate developments." ## What EUMET is building The New Generation Fighter Engine (NGFE) uses a **variable cycle engine** (VCE) architecture — an adaptive propulsion system that dynamically adjusts its bypass ratio via a third airflow stream. At subsonic cruise, it operates like a high-bypass turbofan for fuel efficiency and range. At supersonic speeds, it reconfigures toward a low-bypass turbojet for thrust. The third stream doubles as a heat sink and can drive an accessory power system generating electricity far beyond current fighter engines. This is not theoretical ambition. It is the enabling technology for every capability a 6th-generation fighter requires: supercruise without afterburner, thermal management for high-power AESA radars and electronic warfare suites, and electrical generation approaching one megawatt — necessary for directed energy weapons at tactically relevant power levels. Current fighters generate approximately 100–150 kW; the gap is an order of magnitude. Parameter| M88 (Rafale)| NGFE target ---|---|--- Thrust class| 7.5 tonnes (75 kN)| ~11 tonnes (~108 kN) Turbine inlet temp.| ~1,850 K| ~2,100 K Airframe class| 9.5 t (Rafale)| ~15 t (NGF) Cycle type| Fixed low-bypass| Variable cycle (adaptive) General Fabien Mandon, France's Chief of Defence Staff, told French senators on 5 November 2025: "It's been over forty years since we last did fundamental research on the hot section of a jet engine. The Americans have continued; we haven't. If we don't invest now, we won't be able to do it later." ## Industrial structure and the workshare that works EUMET's division of labour has not produced the sovereignty disputes that destroyed the airframe programme: Partner| Responsibility ---|--- Safran Aircraft Engines| Overall engine design, hot section (HP turbine, combustor), afterburner, engine control MTU Aero Engines| Fan, LP/HP compressor, MRO lead ITP Aero (Spain)| LP turbine, exhaust nozzle ITP Aero participates as a "main partner" — not a JV shareholder — under an arrangement designed to deliver effective one-third workshare per nation despite the 50/50 corporate structure. Crucially, ITP Aero's 2022 sale by Rolls-Royce to Bain Capital for EUR 1.7 billion has not disrupted the trilateral engine cooperation — unlike the airframe pillar, where Dassault's demand for up to 80% workshare triggered the current crisis. The difference is structural. Engine programmes have a long history of successful multinational cooperation (CFM International, Eurojet, MTR390) because component boundaries are physically clean: whoever builds the compressor does not need to argue with whoever builds the turbine about aerodynamic authority. Airframe integration is inherently more contested — control laws, signature management, and systems architecture cannot be cleanly partitioned. ## Where the demonstrator stands Under Phase 1B (EUR 3.2 billion across all FCAS pillars, awarded December 2022), EUMET's work has focused on technology maturation: advanced materials, thermal barrier coatings, high-temperature alloys, and aircraft integration studies. No full-engine ground-test demonstrator has been built or tested yet. The Phase 1B contract expires in April 2026 — this month. A nationally funded precursor effort produced results earlier. In January 2022, France's DGA, ONERA, and Safran completed a high-pressure turbine demonstrator test under the "Turenne" project, using M88-derived hardware to validate thermal management at elevated temperatures. This was a Safran national effort, not part of the EUMET trilateral programme. Safran has also built a technology bridge. At the Paris Air Show on 17 June 2025, it unveiled the **M88 T-REX** — a 20% thrust increase over the baseline M88 (from 75 kN to approximately 88 kN), achieved via a new LP compressor and HP turbine with next-generation cooling. T-REX is designed for the Rafale F5 standard (early 2030s) and explicitly serves as a stepping stone: 9-tonne class now, 11-tonne NGFE later. ## The open question Phase 2 — the approximately EUR 5 billion next stage covering all FCAS pillars — has not been contracted. Without a Phase 2 decision, the ground-test demonstrator engine (targeted for the early 2030s) cannot proceed. The NGF flight demonstrator, if it survives at all, was planned for 2029 — but powered by off-the-shelf M88s, not the NGFE. The irony is precise. Europe's most functional defence-industrial cooperation — the one programme where France, Germany, and Spain divided work without sovereignty theatrics — now depends on politicians resolving a fighter airframe dispute that the engine partners had nothing to do with. Bussmann's offer to keep EUMET alive under a two-fighter scenario is the clearest signal: the industrial logic holds. Whether the political logic catches up before the Phase 1B contract expires is the question that matters this month. * * * ** Großwald is an independent European defence intelligence publication. We track procurement, alliance posture, and industrial readiness across the continent — verified, attributed, and structured for the professionals who need to know. Subscribe at grosswald.org. **