Demonstration of advanced airframe for ultra-efficient regional aircraft

Opened

Programme Category

EU Competitive Programmes

Programme Name

Clean Aviation Joint Undertaking (CAJU)

Programme Description

The Clean Aviation Joint Undertaking (CAJU) is a successful public-private partnership between the European Commission and the European aeronautics industry that is on the way to achieving its environmental performance targets.

The Clean Aviation JU will develop disruptive new aircraft technologies to support the European Green Deal, and climate neutrality by 2050. These technologies will deliver net greenhouse gas (GHG) reductions of no less than 30%, compared to 2020 state-of-the-art. The technological and industrial readiness will allow the deployment of new aircraft incorporating these technologies no later than 2035, enabling 75% of the world’s civil aviation fleet to be replaced by 2050. The aircraft developed will enable net CO2 reductions of up to 90% when combined with the effect of sustainable ‘drop-in’ fuels, or zero CO2 emissions in flight when using hydrogen as energy source.

Clean Aviation’s aeronautics-related research and innovation activities, focusing on breakthrough technology initiatives, will contribute to the global sustainable competitiveness of the European aviation industry. European aviation research and innovation capacity will be strengthened through the partnership, enabling new and ambitious global standards to be set.

Programme Details

Identifier Code

HORIZON-JU-CLEAN-AVIATION-2026-04-REG-01

Call

Demonstration of advanced airframe for ultra-efficient regional aircraft

Summary

Development and demonstration of an advanced airframe, including the wing, fuselage, empennage, and key enabling systems, for the Ultra-Efficient Regional Aircraft concept based on hybrid-electric propulsion. The topic targets a 10% CO2 reduction contribution from airframe technologies compared to 2020 State of the Art, and covers ground demonstrations to TRL6, supporting an entry into service by 2035. See the topic description document published with this call for full details.

Detailed Call Description

The configuration of the Ultra-Efficient Regional Aircraft (UERA) concept proposed in Clean Aviation is expected to remain tube and wing and should target an Entry into Service (EIS) from 2035. Such an 36 aircraft concept should have a capacity of around 50-100 passengers (pax) with a design range up to 500 Nautical Miles (NM), operated on a typical mission of 250NM.

This new generation aircraft concept is based on several advanced design features that affect most of the critical systems and major components, plus an innovative wing-mounted powerplant with hybridelectric capability based on batteries.

The present topic aims to develop and demonstrate the advanced airframe supporting this UERA concept. The airframe is a key contributor to the aircraft performance objectives, complementing the performance improvements expected from the hybrid-electric propulsion system. The integration constraints of hybrid-electric propulsive technologies (powerplant & nacelle, batteries, electrical, thermal and energy management systems) shall be considered as part of the cooperation with other Clean Aviation projects, to ensure the compatibility of the airframe architecture and technologies with the overall UERA concept.

Call Total Budget

€40.000.000

Financing percentage by EU or other bodies / Level of Subsidy or Loan

70%

The maximum EU contribution for the topic is €40.000.000.

The Clean Aviation Joint Undertaking may award up to 1 project with funding depending on the outcome of the evaluation and the complementarity of the proposed actions.

The maximum EU contribution per project funded under this topic is €40.000.000.

Proposals requesting an EU contribution above the maximum amount specified above will be declared non-eligible and will not be evaluated.

A minimum of 15% of the total EU contribution shall be allocated per proposal to Small-Medium Enterprises (SMEs) 28, Research and Technology Organisations (RTOs) and/or Universities having a beneficiary status.

Proposals not meeting this condition will be declared non-eligible and will not be evaluated.

The condition should be met by involving entities under such a legal status in the meaning of Horizon Europe rules across EU Member States and countries associated to Horizon Europe.

Thematic Categories

  • Energy
  • Environment and Climate Change
  • Research, Technological Development and Innovation
  • Transport

Eligibility for Participation

  • Businesses
  • Large Enterprises
  • Legal Entities
  • Other Beneficiaries
  • Researchers/Research Centers/Institutions
  • Small and Medium Enterprises (SMEs)

Eligibility For Participation Notes

A number of non-EU/non-Associated Countries that are not automatically eligible for funding have made specific provisions for making funding available for their participants in Horizon Europe projects.

Call Opening Date

31/03/2026

Call Closing Date

19/05/2026