A new open fan engine project aimed at transforming commercial aviation propulsion has officially begun in Europe. The initiative seeks to test a next-generation engine architecture that could significantly reduce fuel consumption and emissions.
According to aerospace journalist Dominic Perry, writing for FlightGlobal, the project, known as TAKE OFF (Technology and Knowledge for European Open Fan Flight), is scheduled to culminate in flight tests in 2029.
The project is led by Safran Aircraft Engines and involves a consortium of major aerospace companies, research institutions, and universities across Europe.
EU Clean Aviation Funding Drives Sustainable Aviation Technology
The initiative is backed by the European Union’s Clean Aviation research program. The total project budget is approximately €139 million, with about €100 million provided through EU funding.
Key participants include:
- Airbus
- GE Aerospace
- GKN Aerospace
- National aerospace research centers in France, Germany, and the Netherlands.
The program will run from 2026 to 2029, covering the full development cycle—from engine design and assembly to flight testing and post-flight data analysis.
Why the Open Fan Engine Project Matters
The open fan engine project represents a major step toward sustainable aviation technology.
Traditional turbofan engines enclose the fan within a nacelle. By contrast, open fan engines expose the blades, allowing for:
- Larger fan diameters
- Higher propulsive efficiency
- Reduced fuel consumption
According to the CFM RISE technology program, this architecture could deliver about 20% lower fuel burn compared with today’s engines.
Such improvements are critical as the aviation industry works toward net-zero carbon emissions by 2050.
Airbus A380 Test Aircraft Planned for Demonstration
Flight tests will use a modified Airbus A380, one of the world’s largest commercial jets.
The aircraft will serve as a flight test demonstrator, allowing engineers to evaluate the engine’s:
- aerodynamic performance
- noise levels
- fuel efficiency
- integration with aircraft systems
Modification of the A380 platform is expected to begin in 2027 ahead of the planned flight tests.
The testing effort will also involve another Clean Aviation initiative called COMPANION, led by Airbus.
How the Technology Will Be Developed
The project will follow a staged development process.
Timeline
2026–2027
- Final engine design and component testing
- Aircraft integration planning
2027–2028
- Demonstrator engine assembly
- Instrumentation and regulatory certification preparation
2029
- Full flight-test campaign on the Airbus A380
- Performance data analysis and technology validation
By the end of the program, engineers aim to raise the engine design to Technology Readiness Level (TRL) 6, meaning the technology will be validated in a relevant operational environment.
Industry Context: Race for Next-Generation Aircraft Engines
The open-fan concept has gained attention as airlines seek lower emissions and fuel costs.
Research programs like CFM’s RISE demonstrator, developed by Safran and GE Aerospace, are exploring advanced propulsion systems capable of powering future single-aisle aircraft entering service in the mid-2030s.
According to Airbus research, open fan engines combine elements of turboprop efficiency with turbofan speed and performance.
However, challenges remain, including:
- controlling noise from exposed rotor blades
- integrating large engines with aircraft wings
- meeting aviation certification standards
What’s Next for the Open Fan Engine Project
If the open fan engine project succeeds, it could shape the next generation of commercial aircraft propulsion.
Key milestones to watch:
- 2027: modification of the Airbus A380 test platform
- 2028: demonstrator engine integration
- 2029: first full flight tests
Successful validation could pave the way for new aircraft engines entering service around 2035, potentially transforming fuel efficiency across global airline fleets.
Sources
- FlightGlobal: TAKE OFF project spools up as open-fan partners build towards 2029 flight tests
- Safran: Launch of European Clean Aviation TAKE OFF project led by Safran and partners
- GE Aerospace: Technology And Knowledge for European Open Fan Flight
- Airbus: Testing the open fan’s promise
