CFM International’s RISE open-fan demonstrator engine remains “on track” for its first ground and flight tests in the second half of the decade, with the first major parts already built. Briefing ...

Safran displays the RISE demonstrator's low-pressure compressor in Liege, Belgium. Credit: Thierry Dubois/Aviation Week Network LIEGE, Belgium—Safran is gearing up to begin a six-month test campaign ...

Airbus is encouraged by preliminary data analysis of CFM’s RISE engine but the airframer’s propulsion engineering chief insists that the open-rotor technology has still to cement its case for ...

The RISE’s low-pressure compressor will run at about twice the rotation speed of a conventional booster. Credit: Philippe Doutrewe/Safran Aero Boosters Aiming to convince airframers of the technology ...