keesje
5th Mar 2009, 11:45
GE / Safran, the US / French market leaders in the narrow body segment, release details on the new generation CFMI LeapX engines.
http://www.flightglobal.com/assets/getAsset.aspx?ItemID=27816
The CFMI Leap-X will have a bypass ratio of around 10 (like GENX), compared with 5-6 for the CFM56 family and offer 16% sfc improvement compared to CFM56s.
The first phase of performance tests of Leap-X\'s 18-blade, 1.8m (71in)-diameter composite fan mounted on a CFM56-5C core at Villaroche in France are around two-thirds complete, with results \"in line with predictions\", says chief engineer Jerome Friedel.
http://www.flightglobal.com/articles/2009/03/05/323363/cfmi-finalises-leap-x-engine-architecture.html (http://www.flightglobal.com/articles/2009/03/05/323363/cfmi-finalises-leap-x-engine-architecture.html)
PW has put its cards on the GTF GE / Safran's CFMI on this engine. Now Rolls will have to give a sign of what to do I guess.
Rolls-Royce will have to make a choice between Open Rotor and 2 / 3 spool turbofan soon, or they get behind. R-R details three-shaft RB285 study for 150-seat market (http://www.flightglobal.com/articles/2008/09/19/316218/r-r-details-three-shaft-rb285-study-for-150-seat-market.html)
http://www.flightglobal.com/assets/getAsset.aspx?ItemID=27816
The CFMI Leap-X will have a bypass ratio of around 10 (like GENX), compared with 5-6 for the CFM56 family and offer 16% sfc improvement compared to CFM56s.
The first phase of performance tests of Leap-X\'s 18-blade, 1.8m (71in)-diameter composite fan mounted on a CFM56-5C core at Villaroche in France are around two-thirds complete, with results \"in line with predictions\", says chief engineer Jerome Friedel.
http://www.flightglobal.com/articles/2009/03/05/323363/cfmi-finalises-leap-x-engine-architecture.html (http://www.flightglobal.com/articles/2009/03/05/323363/cfmi-finalises-leap-x-engine-architecture.html)
PW has put its cards on the GTF GE / Safran's CFMI on this engine. Now Rolls will have to give a sign of what to do I guess.
Rolls-Royce will have to make a choice between Open Rotor and 2 / 3 spool turbofan soon, or they get behind. R-R details three-shaft RB285 study for 150-seat market (http://www.flightglobal.com/articles/2008/09/19/316218/r-r-details-three-shaft-rb285-study-for-150-seat-market.html)