Leeham News
• Scott Hamilton
CFM, rivals back open-fan ‘Plan A’ with conventional ‘Plan B’ in engine R&D
CFM International is positioning its open-fan RISE demonstrator as the prime solution for next-generation narrowbody propulsion, while GE/Safran and competitors are also advancing conventional low-risk turbofan upgrades and geared-turbofan demonstrators to ensure contingency paths for performance, efficiency and emissions targets if open fan integration hurdles persist.
