CFM International

aviation propulsion CFM RISE CFM RISE engine jet engine technology narrowbody aircraft next-generation aircraft engines open fan engine sustainable aviation sustainable aviation fuel

Cleared Direct Jun 14, 2026

The CFM RISE open fan engine and the radical bet to strip the nacelle off the future of flight

The CFM RISE open fan engine aims to cut fuel burn 20% by removing the nacelle, marking the biggest propulsion shift in decades.

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Cleared Direct Apr 30, 2026

The CFM RISE open fan engine and the radical redesign that could power every narrowbody in the twenty thirties

CFM's RISE open fan engine targets 20% fuel savings over the LEAP and could power every narrowbody jet by the mid-2030s.

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