SAFRAN TRANSMISSION SYSTEMS

Their core work

Safran Transmission Systems designs and manufactures power transmission systems for aircraft engines and helicopters — primarily accessory gearboxes (AGB), power offtake mechanisms, and speed reducers that convert and distribute shaft power within aero-engines. As a subsidiary of the Safran Group, one of Europe's largest aerospace and defense conglomerates, they operate as a Tier 1 supplier embedded in the industrial supply chains that build modern commercial and military aircraft. Their H2020 participation sits entirely within Clean Sky 2's Engine Integrated Technology Demonstrator (Engine ITD), where they contribute mechanical transmission components to next-generation engine demonstrators aimed at cutting fuel burn and CO₂ emissions. Their practical value is precision mechanical engineering that meets the strictest aerospace certification standards while enabling more fuel-efficient propulsion architectures.

What they specialise in

How they've shifted over time

In their earliest H2020 phase (2018–2019), Safran Transmission Systems focused on foundational engine and combustion technology within the Clean Sky 2 Engine ITD — characteristic of the component development and sub-system testing stage of that program. By 2020–2024, the explicit appearance of "demonstrators" as a keyword signals a transition to full engine system demonstrator programs, where individual contributions are integrated and validated at the full-scale engine level. This arc is entirely consistent with the CS2 program's own maturation timeline: moving from TRL 3–5 component work toward TRL 6–7 flight-testable demonstrators, suggesting Safran Transmission Systems' role deepened and expanded as the program progressed.

Their trajectory tracks the Clean Sky 2 program lifecycle toward full engine demonstrator maturity, making them a strong candidate for follow-on engagements in Clean Aviation (the CS2 successor) and hybrid-electric propulsion programs requiring advanced mechanical power transmission.

How they like to work

Safran Transmission Systems participates exclusively as a third party across all recorded projects — a form of engagement common among Tier 1 aerospace suppliers who contribute proprietary subsystems under industrial agreements rather than appearing as direct EU funding beneficiaries. This means they are systematically embedded in large program consortia driven by primes (like Safran Aircraft Engines or Rolls-Royce), not self-initiating research consortia. With 41 unique partners across 12 countries, their network is broad but tightly structured around the CS2 industrial ecosystem rather than open cross-sector partnerships.

41 unique consortium partners across 12 countries, reflecting the pan-European multi-tier supply chain assembled under Clean Sky 2 rather than independently built research relationships. Their geographic spread is European in scope but aerospace-sector specific in nature.

What sets them apart

Safran Transmission Systems occupies a narrow but structurally critical niche in aero-engine architecture: very few companies in Europe combine the mechanical precision of gearbox and power transmission design with the industrial scale, certification infrastructure, and program management capacity demanded by Clean Sky 2 demonstrators. Their consistent presence across both the 2018 and 2020 CS2 Engine ITD waves signals recognized strategic supplier status — they are not occasional contributors but a load-bearing part of Europe's engine decarbonization roadmap. For any consortium targeting aviation efficiency, electrification of propulsion, or next-generation turbofan architectures, they bring proprietary IP, manufacturing credibility, and direct CS2 pedigree that is difficult to substitute.

Highlights from their portfolio

• GAM-2020-ENG
  The longest and most complex of their recorded engagements (2020–2024), this project represents the full demonstrator phase of Clean Sky 2's Engine ITD — where technology contributions must survive ground and flight test conditions, marking Safran Transmission Systems' deepest integration into European aviation decarbonization efforts.
• ENG GAM 2018
  Their first Clean Sky 2 Engine ITD contribution, establishing Safran Transmission Systems as a third-party supplier in the program and laying the industrial relationship foundation that carried through to the 2020–2024 demonstrator phase.