airbuster
Posts: 309
Joined: Fri Mar 30, 2007 12:43 am

CFM56 Chevrons?

Sun Feb 22, 2009 8:19 pm

Last week i saw a AF A321 with the CFM56's having a chevroned outlet instead of the standard one, didn't know it was available.

What are the savings and is it possible to have a chevroned and non chevroned engine on the same aircraft?

rgds

AB

[Edited 2009-02-22 12:21:31]
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oly720man
Posts: 5760
Joined: Fri May 21, 2004 7:13 am

RE: CFM56 Chevrons?

Mon Feb 23, 2009 8:39 pm



Quoting Airbuster (Thread starter):
What are the savings and is it possible to have a chevroned and non chevroned engine on the same aircraft?

I think it's more for noise reduction than for any savings (though it might save on the noise bills). I can't see why you couldn't have both type of nacelle on the same plane. The only reason you may want to was if one got damaged, I'd have thought.

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LY744
Posts: 5185
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RE: CFM56 Chevrons?

Tue Feb 24, 2009 1:12 am

There's at least one An-124 (ADB) that has been flying with chevron exhausts on its engines for the past year or two. It also has some sort of new liner on the inside of the exhaust ducts. Both measures were implemented for noise reduction.


LY744.
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oly720man
Posts: 5760
Joined: Fri May 21, 2004 7:13 am

RE: CFM56 Chevrons?

Tue Feb 24, 2009 7:42 am



Quoting LY744 (Reply 2):
There's at least one An-124 (ADB) that has been flying with chevron exhausts on its engines for the past year or two.

Judging by the photos UR-82009 has had them since late 2007


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