France launches its Avion de Combat du Futur (ACF) following the collapse of the FCAS project. A sovereign fighter planned for 2040, with a nuclear capability scheduled for 2050.
In Summary
The cancellation of the European New Generation Fighter (NGF) project has not brought an end to France’s plans for a sixth-generation combat aircraft. On October 14, 2026, General Jérôme Bellanger, Chief of Staff of the French Air and Space Force, presented the Avion de Combat du Futur (ACF) as a fully national program. The roadmap sets operational readiness for conventional missions around 2040, followed by the integration of the ASN4G nuclear missile by 2050.
This strategic direction does not mean the aircraft is already funded, fully designed, or ordered; rather, it establishes an industrial blueprint. France aims to maintain full sovereign control over the design of its next-generation jet while continuing European collaboration on data links and combat cloud systems.
The Rafale F5, expected around 2035 alongside the ASN4G, will serve as the transition platform. Specific French operational requirements—notably airborne nuclear deterrence and carrier compatibility—make adopting a standardized foreign fighter impractical.
The Future French Fighter Shifts Framework Following FCAS Breakdown
The ACF takes over the mission originally assigned to the New Generation Fighter (NGF), the piloted aircraft planned within the Future Combat Air System (FCAS / SCAF) alongside Germany and Spain. In June 2026, Berlin decided to exit the joint project following prolonged disagreements between defense contractors regarding workshare distribution and lead design responsibilities.
Testifying before the French Senate on June 10, Minister of the Armed Forces Catherine Vautrin evaluated the investment at 2.5 billion euros over eight years, half of which was dedicated to sovereign technology developments. These expenditures are not entirely lost; studies conducted on stealth, propulsion, unmanned systems, and combat cloud architecture remain valuable assets.
This marks a major pivot. France intends to ensure that potential partnerships no longer dictate or delay the creation of the aircraft. Future cooperation may involve complementary sub-systems without imposing complex industrial compromises on the airframe or core equipment.
This decision marks a new chapter for modern fighter jets, echoing France’s choice to pursue an independent national path with the Rafale during the 1980s.
The ACF Timeline Driven First by Nuclear Requirements
The two announced milestones reflect distinct operational roles. By 2040, the ACF is expected to carry out conventional operations: air defense, deep strike missions, and networked warfare. By 2050, it must be capable of deploying the ASN4G, the fourth-generation air-launched nuclear missile.
However, development of the missile will not wait until 2050. On June 2, 2026, the French Defense Procurement Agency (DGA) contracted MBDA to begin development, aiming for initial deployment on the Rafale F5 around 2035.
Hypersonic in nature, the ASN4G is designed to exceed Mach 5—more than five times the local speed of sound—and perform high-speed maneuvers to evade defensive systems.
For the ACF, the primary technical challenge extends beyond merely carrying the payload. Engineers must ensure flawless mechanical and electronic integration, mission system reliability, and full compliance with national nuclear deterrence protocols. Publicly available specifications regarding the missile’s size and weight remain insufficient to extrapolate the precise dimensions of the future airframe.
The Rafale F5 Matures Key Technologies Ahead of the New Fighter
The Dassault Rafale maintains a central operational role during this transition. In September 2026, the DGA detailed development work for the F5 standard, including the RBE2-XG radar, digital upgrades to the SPECTRA electronic warfare suite, and the evolution of the M88 engine into the T-REX variant.
The stated target for the T-REX engine is a 20% increase in thrust, rising from 73.6 kN to 88.3 kN (7.5 to 9 tonnes-force).
The F5 standard will also operate alongside uncrewed aerial vehicles (UAVs) and deploy new ordnance, notably the STRATUS RS missile designed to suppress enemy air defenses. Understanding these advances helps illustrate how fighter jet technology continues to evolve toward fully integrated combat networks.
These technological milestones establish a vital bridge. However, their integration on the Rafale does not mean they will be transferred directly to the ACF without further modification.
Sixth Generation Focuses on Low Observability and Networked Warfare
No official technical specification currently sets the definitive dimensions, weight, maximum speed, or combat range of the ACF. Assigning exact performance figures at this stage would be premature, though key operational requirements are clearly defined.
Radar stealth aims to significantly reduce detection distances against adversary radar networks. This requires precise shaping of the airframe, optimized air intakes, specialized radar-absorbent materials, and internal weapons bays wherever possible. However, stealth alone does not grant absolute invisibility, particularly against multi-static sensor networks.
The aircraft will need to fuse data from its onboard sensors with external platforms, transmitting continuous data streams even under intense electronic jamming conditions.
The key benefit of collaborative combat is enabling uncrewed wingmen to penetrate high-threat zones, distract defenses, or deliver strikes without unnecessarily exposing human pilots.
Computing power, cybersecurity, and secure data link reliability become as critical as raw airspeed. The ACF is engineered to operate as a node within a broader network rather than as an isolated weapon system.
Carrier Compatibility Imposes Strict Design Constraints
The future aircraft must also be capable of operating aboard the next-generation aircraft carrier France Libre, in accordance with military planning guidelines.
A carrier-capable variant requires reinforced landing gear, an arrestor hook, precise low-speed approach control, and structural resistance to catapult launches. It also enforces strict limits on gross weight and overall wingspan.
These engineering constraints are fundamental: an airframe designed strictly for land-based operations can prove excessively costly—or structurally impossible—to adapt for naval operations later.
Balancing stealth geometry, nuclear strike capability, and carrier suitability represents one of the major design trade-offs of the program.
Industrial Sovereignty Requires Concrete Budgetary Commitments
Dassault Aviation brings extensive experience as a prime contractor for military combat aircraft, complemented by Safran, Thales, and MBDA in propulsion, avionics, radar, and missile systems.
However, industrial capability alone cannot replace contractual milestones or sustained funding.
The military programming law amendment passed on August 16, 2026, makes provision for a national sixth-generation demonstrator by 2035, leaving the door open to international partnerships. While a technology demonstrator validates critical flight systems, it is not equivalent to a fully qualified, production-ready aircraft deployed in active squadrons.
France’s sovereign stance does not preclude international cooperation. General Bellanger emphasized the need for a shared tactical combat cloud with European allies.
For those interested in experiencing the physical demands and performance of military aviation firsthand, taking part in a jet fighter ride provides unique insight into high-G tactical maneuvers and cockpit operations.
For France, the primary risk is not losing the technical capacity to build a fighter jet. The true challenge lies in preventing delays in flight testing, qualification, and serial production beyond the hard deadline set by the renewal of the airborne nuclear deterrent.
Ultimately, French sovereignty regarding the ACF will not be measured solely by the nationality of its defense contractors, but by their ability to deliver a complete, scalable, and operational combat system on schedule.