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Topic: CFM Releases More Info On Leap-X Engine
Username: Art
Posted 2008-10-31 01:19:39 and read 6214 times.

CFM International has outlined some of the technologies that will allow its Leap-X new generation narrowbody engine achieve 16% lower fuel burn.

http://www.flightglobal.com/articles...nes-leap-in-engine-technology.html

The article also mentions CFM is working on an open rotor design with a 4.27m diameter fan envelope. Where would you place a 4.27m diameter fan on an aircraft?

[Edited 2008-10-31 01:49:41]

Topic: RE: CFM Releases More Info On Leap-X Engine
Username: StealthZ
Posted 2008-10-31 02:57:33 and read 6144 times.



Quoting Art (Thread starter):
Where would you place a 4.27m diameter fan on an aircraft?

Not on a 737 class narrow body, that fan is half a metre greater in diameter than a B737 fuselage.
It would likely be neat retrofit on the AN-22 or TU-95 replacing the 5.7 metre contra rotating turboshaft engines!

Topic: RE: CFM Releases More Info On Leap-X Engine
Username: Keesje
Posted 2008-10-31 04:58:39 and read 6036 times.



Quoting Art (Thread starter):
The article also mentions CFM is working on an open rotor design with a 4.27m diameter fan envelope. Where would you place a 4.27m diameter fan on an aircraft?

Airbus and Boeing have been studying alternative configurations for over a decade.

Topic: RE: CFM Releases More Info On Leap-X Engine
Username: PW100
Posted 2008-10-31 06:10:57 and read 5933 times.



Quoting Art (Thread starter):
Where would you place a 4.27m diameter fan on an aircraft?

Keesje, can you post your 150 seat turboprop again, it seems you just found an engine for your design!

Regards,
PW100

Topic: RE: CFM Releases More Info On Leap-X Engine
Username: AcNDTTech
Posted 2008-10-31 06:18:24 and read 5913 times.

So we are finally coming back to the UDF idea. I was wondering how long it would take.


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