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The STROF project is about the development, manufacturing, and validation of two complex engine structure modules for the demonstrator engine Open Fan. The modules are optimized lightweight constructions that incorporate new manufacturing technology in the form of additive manufacturing (3D printing) and new high temperature materials and are being developed by GKN in collaboration with SMF and academia. Validation to TRL5-6 will occur in a full-scale engine test at an OEM by the end of 2025, which accelerates the introduction of new environmentally friendly technology. The purpose of the project is to strengthen the competitiveness of GKN Aerospace in Trollhättan with SMF partners by participating in an international demonstrator engine with leading OEMs. Together, we will demonstrate the new Open Fan engine concept at full scale for application to the next generation of medium-haul airliners.

The goal is for GKN's components to be 15% lighter than competitors' and contribute to the Open Fan engine enabling a 30% reduction in fuel consumption at the aircraft level. In the first step, the engine will be capable of 100% SAF (Sustainable Aviation Fuel) to then evolve towards using hydrogen further as fuel. The STROF project will also develop a Swedish complete supply chain for metallic aircraft engine components and provide valuable knowledge about new aircraft engines that the university can include in research and education.

Research Area

  • Teknik
  • Maskinteknik

Research environment / Institution

  • Produktionsteknik
  • Primus (KK-miljö)
  • Institutionen för ingenjörsvetenskap

Project leader

Research Partner

  • GKN Aerospace Sweden AB
  • Brogren Industries
  • Innovatum i Trollhättan
  • TPC Components AB
  • Bröderna Carlsson i Motala AB

Research funding

  • Vinnova

Project time

2024 - 2026