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Engine Polishing (Exhaust Portion)  
User currently offlineSkyTeamTriStar From United States of America, joined Dec 2007, 394 posts, RR: 0
Posted (3 years 2 months 2 weeks 4 days 16 hours ago) and read 5128 times:

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!

10 replies: All unread, jump to last
 
User currently offline26point2 From United States of America, joined Mar 2010, 833 posts, RR: 0
Reply 1, posted (3 years 2 months 2 weeks 4 days 7 hours ago) and read 4953 times:

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.

User currently offlineDalmd88 From United States of America, joined Jul 2000, 2559 posts, RR: 14
Reply 2, posted (3 years 2 months 2 weeks 4 days 5 hours ago) and read 4906 times:

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.

User currently offline474218 From United States of America, joined Oct 2005, 6340 posts, RR: 9
Reply 3, posted (3 years 2 months 2 weeks 4 days 4 hours ago) and read 4885 times:

Nothing shines like that without being polished!


View Large View Medium
Click here for bigger photo!

Photo © Alexander Karmazin



User currently offlinerrobards2 From United States of America, joined Aug 2010, 16 posts, RR: 0
Reply 4, posted (3 years 2 months 2 weeks 3 days 23 hours ago) and read 4808 times:

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.

User currently offlinedkswim From United States of America, joined Sep 2010, 30 posts, RR: 0
Reply 5, posted (3 years 2 months 2 weeks 3 days 22 hours ago) and read 4797 times:

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

User currently offlineSkyTeamTriStar From United States of America, joined Dec 2007, 394 posts, RR: 0
Reply 6, posted (3 years 2 months 2 weeks 3 days 15 hours ago) and read 4699 times:

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?


User currently offlineboeing767mech From United States of America, joined Dec 2000, 1027 posts, RR: 3
Reply 7, posted (3 years 2 months 2 weeks 3 days 15 hours ago) and read 4683 times:

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
User currently offlineRJSampson From United States of America, joined Jul 2010, 35 posts, RR: 0
Reply 8, posted (3 years 2 months 2 weeks 3 days 4 hours ago) and read 4504 times:

The exhaust nozzles on Air Force One sure are polished to a high mirror shine!

User currently offlineAA737-823 From United States of America, joined Mar 2000, 5849 posts, RR: 11
Reply 9, posted (3 years 2 months 1 week 5 days 18 hours ago) and read 4040 times:

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!


User currently offlineSkyTeamTriStar From United States of America, joined Dec 2007, 394 posts, RR: 0
Reply 10, posted (10 months 2 weeks 4 days 14 hours ago) and read 2027 times:

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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