SkyTeamTriStar
Topic Author
Posts: 245
Joined: Tue Dec 11, 2007 2:47 pm

Engine Polishing (Exhaust Portion)

Sat Jul 16, 2011 1:34 pm

When does airlines perform the polishing on the exhaust portion of the engines? Browsing through the photo's on A.net, I've noticed Delta has shined-up some of the 767s but what about the rest of the fleet now that the painting of the new livery is finished?

Working for DL back in the 80s & 90s, Delta seemed to keep their engines all shined-up. I'm talking about the silver, exhaust part.

The part of the engine where its determined if its a PW or GE....what is that shiny, silver part of the engine called?

Thanks!
 
26point2
Posts: 816
Joined: Wed Mar 03, 2010 6:01 am

RE: Engine Polishing (Exhaust Portion)

Sat Jul 16, 2011 11:12 pm

Can't answer your question about polishing but I believe you're talking about the "Exhaust Nozzle". Very soon likely taken to task telling me that answer is wrong however Stand by.
 
Dalmd88
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Joined: Fri Jul 28, 2000 3:19 am

RE: Engine Polishing (Exhaust Portion)

Sun Jul 17, 2011 12:57 am

The exhaust nozzle never gets polished. The type of metal never takes a shine, I think its titanium. The core cowls on the DL fleet are unpainted for all the 757/767. Those are aluminum and get cleaned when the rest of the aircraft gets cleaned. I don't know how often that is now, but they seem to get done more often since the merger.
 
474218
Posts: 4510
Joined: Mon Oct 10, 2005 12:27 pm

RE: Engine Polishing (Exhaust Portion)

Sun Jul 17, 2011 1:51 am

Nothing shines like that without being polished!


View Large View Medium
Click here for bigger photo!

Photo © Alexander Karmazin

 
rrobards2
Posts: 12
Joined: Thu Aug 05, 2010 4:28 pm

RE: Engine Polishing (Exhaust Portion)

Sun Jul 17, 2011 6:54 am

With the GEs on 767, you don't see the actual exhaust nozzle like you do on other types of engines. What you see is most likely made out of aluminum and doesn't have exhaust gases touching it, but thrust from the fan blades.
 
dkswim
Posts: 29
Joined: Thu Sep 09, 2010 9:28 am

RE: Engine Polishing (Exhaust Portion)

Sun Jul 17, 2011 7:57 am

the shiny part is the cowl surrounding the core, its not part of the engine it is part of the airframe.
 
SkyTeamTriStar
Topic Author
Posts: 245
Joined: Tue Dec 11, 2007 2:47 pm

RE: Engine Polishing (Exhaust Portion)

Sun Jul 17, 2011 2:44 pm

Good example, 474218!

It totally completes the look of any airliner. Its like washing your car but forgetting to shine the tires or the rims. Right?
 
boeing767mech
Posts: 805
Joined: Fri Dec 15, 2000 5:03 pm

RE: Engine Polishing (Exhaust Portion)

Sun Jul 17, 2011 3:18 pm

Quoting rrobards2 (Reply 4):
With the GEs on 767, you don't see the actual exhaust nozzle like you do on other types of engines

Ummmmm those are GE engines on the picture in this thread and I can see the exhaust nozzle very well behind the core cowl which is polished
Never under-estimate the predictably of stupidty
 
rjsampson
Posts: 85
Joined: Sat Jul 31, 2010 12:00 am

RE: Engine Polishing (Exhaust Portion)

Mon Jul 18, 2011 1:40 am

The exhaust nozzles on Air Force One sure are polished to a high mirror shine!
 
AA737-823
Posts: 4906
Joined: Wed Mar 01, 2000 11:10 am

RE: Engine Polishing (Exhaust Portion)

Fri Jul 22, 2011 12:03 pm

Quoting 474218 (Reply 3):
Nothing shines like that without being polished!

Wrong.

Quoting rrobards2 (Reply 4):
you don't see the actual exhaust nozzle like you do on other types of engines

Wrong.

Quoting dkswim (Reply 5):

the shiny part is the cowl surrounding the core, its not part of the engine it is part of the airframe.

Wrong.

Quoting boeing767mech (Reply 7):
Ummmmm those are GE engines on the picture in this thread and I can see the exhaust nozzle very well behind the core cowl which is polished

FINALLY! Someone gets it right!

Airlines don't polish these things any more- it's a waste of money, and chemicals, which our friends at the EPA no longer smile upon.
But the aft-most cone in the exhaust assembly IS the exhaust nozzle, and it is riveted onto the engine- it is NOT a part of the core cowl.

Quoting RJSampson (Reply 8):
The exhaust nozzles on Air Force One sure are polished to a high mirror shine!

Undoubtedly the most polished 747 ever to grace the skies!
 
SkyTeamTriStar
Topic Author
Posts: 245
Joined: Tue Dec 11, 2007 2:47 pm

RE: Engine Polishing (Exhaust Portion)

Sun Nov 17, 2013 3:56 pm

Regarding Delta, specifically…..

When will DL shine those engines on the 744? They're in dire need. IMHO, it completes the whole look of a clean airplane.

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