Why CFM's open-fan engine must solve the acoustic problem that killed GE's 1980s open-rotor program

What was the issue and what impact did it have?
Flightglobal

CFM keeps focus on RISE open-fan engine but is ‘prepared for any scenario’: Safran chief

Safran has played down the significance of reports that its CFM International narrowbody joint venture with GE Aerospace is developing a ducted-fan alternative to the open-rotor architecture being ...
Aviation Week Network

CFM Pushes Open Fan Cost Of Ownership Advantage Claim

CFM International says its Open Fan propulsion system will be capable of beating competing next-generation turbofans on both fuel burn efficiency and durability, but that it may dial back the former ...
Flightglobal

Test Progress Builds Confidence in Open Fan Architecture

Progress is accelerating for the RISE technology demonstrator, a program of CFM International, a 50-50 joint company between GE Aerospace and Safran Aircraft Engines. More than 250 tests have been ...
Aviation Week Network

GE Studies Dowty Propellers Technology For Open Fan

GE Studies Dowty Propellers Technology For Open Fan is published in Aerospace Daily & Defense Report, an Aviation Week Intelligence Network (AWIN) Market Briefing and is included with your AWIN ...