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P&WC to Lead PHARES Hybrid-Electric Clean Aviation Consortium

P&WC to Lead PHARES Hybrid-Electric Clean Aviation Consortium
Pratt & Whitney Canada (P&WC) has been appointed by the European Union’s Clean Aviation Joint Undertaking to lead the Powerplant Hybrid Application REgional Segment (PHARES) project. This marks a historic milestone as the first time a Canadian company has both participated in and taken leadership of a Clean Aviation programme. In its role as consortium leader, P&WC will collaborate closely with RTX affiliate Collins Aerospace, aircraft manufacturers ATR and Airbus, as well as several technology research organizations, to advance hybrid-electric propulsion systems tailored for regional aircraft.
Advancing Hybrid-Electric Propulsion for Regional Aircraft
PHARES is one of several initiatives under Clean Aviation’s third call for proposals involving RTX. The project’s primary objective is to design and integrate a hybrid-electric propulsion demonstrator capable of achieving up to 20% greater fuel efficiency on regional aircraft missions. This system will integrate an advanced PW127XT-derivative turboprop engine with a Collins 250 kW electric motor drive, linked through an optimized propeller gearbox and enhanced by thermal efficiency improvements. Collins Aerospace will also contribute by developing an advanced propeller system aimed at further improving fuel efficiency while reducing noise emissions.
Maria Della Posta, president of Pratt & Whitney Canada, emphasized the strategic importance of the project, stating, “Hybrid-electric propulsion and electrified aircraft systems are key parts of RTX’s technology roadmap for optimizing performance and enhancing fuel efficiency across multiple future aircraft platforms. PHARES represents a transformative opportunity to demonstrate the potential for regional aviation.” She highlighted that P&WC and Collins Aerospace will leverage their extensive expertise in propulsion and electric power systems, supported by state-of-the-art research facilities.
Strategic and Technical Challenges Ahead
PHARES is a critical component of Clean Aviation’s Ultra-Efficient Regional Aircraft architecture, which aligns with the European Union’s climate action plan and the broader aviation industry’s decarbonisation goals by promoting next-generation, energy-efficient technologies. However, P&WC’s leadership role entails significant challenges. The development and testing of new hybrid-electric propulsion systems involve considerable financial investment and technical complexity, particularly in integrating these novel technologies with existing aircraft platforms. The project also demands extensive coordination among a diverse consortium of stakeholders, adding layers of operational risk.
Market responses to P&WC’s leadership have been mixed. Some traditional aviation investors remain cautious about the transition from conventional jet engines to hybrid-electric solutions. At the same time, competitors such as General Electric and Airbus are anticipated to intensify their research and development efforts, potentially accelerating competition within the clean aviation sector.
Despite these challenges, the PHARES project positions P&WC and its partners at the forefront of the industry’s shift toward cleaner, more efficient regional aviation, reflecting the growing momentum behind sustainable flight technologies.

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