Safran

Cleared Direct Oct 24, 2026

The CFM RISE Program, the Open Fan Architecture That GE Aerospace and Safran Are Betting Will Replace the Turbofan, and the Fuel Burn Promise That Could Rewrite the Narrowbody Market by the Mid-Thirties

CFM International's RISE open fan engine promises more than 20% better fuel burn than the LEAP, targeting commercial service in the mid-2030s with a design that breaks from 50 years of turbofan architecture.

Vector

Cleared Direct Oct 20, 2026

The CFM RISE Open Fan Engine, the Return of the Propfan, and Why GE and Safran Think They Can Finally Solve the Problem That Beat Them in the Nineteen Eighties

CFM International's RISE program targets 20%-plus fuel efficiency over today's LEAP engines by removing the nacelle and exposing fan blades - a concept the 1980s couldn't close out, now back with better physics support.

Vector

Cleared Direct Sep 3, 2026

The CFM RISE Open Fan Engine, the Return of the Propfan, and the Forty-Year-Old Idea That Could Reshape Every Narrowbody in the Sky

CFM International's RISE program is reviving the open fan engine with modern materials and AI design tools that could deliver 20%+ fuel savings for the next narrowbody generation.

Vector

Cleared Direct Aug 11, 2026

The CFM RISE Open Fan, the Unducted Engine Aviation Tried and Abandoned in the Eighties, and the Twenty Percent Fuel Bet Coming Back to the Single-Aisle Jet

CFM's RISE open fan engine promises 20% better fuel burn and could power the next single-aisle jet around 2035.

Vector

Cleared Direct Aug 4, 2026

The CFM RISE Open Fan, the Uncowled Engine GE and Safran Are Betting Will Power the Next Narrowbody, and Why an Idea the 1980s Abandoned Is Back on the Test Stand

CFM's RISE open fan revives a 1980s design, targeting 20% less fuel burn for the next single-aisle jet, with service entry around 2035.

Vector