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Visual Differences In 777 Engines  
User currently offlineBOEING747400 From United States of America, joined Sep 2001, 319 posts, RR: 0
Posted (11 years 4 months 2 weeks 2 days 9 hours ago) and read 2208 times:

When I look at a photo of a 777 aircraft, how do I visually tell the type of engines it has (GE or PW or RR)? Also, how do I visually figure out what type of GE or PW or RR engines it has? Any visual aids such as technical drawings attached would be helpful to me. Thanks for any guidance on this.

4 replies: All unread, jump to last
 
User currently offlineTsentsan From Singapore, joined Jan 2002, 2016 posts, RR: 15
Reply 1, posted (11 years 4 months 2 weeks 2 days 8 hours ago) and read 2166 times:

RR has a little sticker at the side saying ROLLS ROYCE.
PW has a little sticker at the side showing an eagle.
GE has a little sticker at the side saying GE90.

Then again not all airlines have this, but this is I think the best visual method unless you can tell that the biggest fan is a GE90..

RR:
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Click here for bigger photo!

Photo © TTT



PW:
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Click here for bigger photo!

Photo © PolishAir42 - Chicago Aviation Photography



GE:
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Click here for bigger photo!

Photo © Paul Paulsen




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User currently offline777236ER From , joined Dec 1969, posts, RR:
Reply 2, posted (11 years 4 months 2 weeks 2 days 5 hours ago) and read 2123 times:

The pylon for the GE and RR goes further forward to the front of the engine. The RR has a pointed spinner whereas the GE and P&W ones are rounded.

User currently offlineN79969 From , joined Dec 1969, posts, RR:
Reply 3, posted (11 years 4 months 2 weeks 2 days 1 hour ago) and read 2027 times:

I have observed that the GE90 is sort of short and compact-looking when viewed from the side compared to the others. The Trents seem relatively long compared to the PW and GE. The first 777 I saw was a PW-powered UA aircraft so that seems to be 'normal' for me.

User currently offlineJBirdAV8r From United States of America, joined Jun 2001, 4489 posts, RR: 21
Reply 4, posted (11 years 4 months 2 weeks 2 days 1 hour ago) and read 1990 times:

Also the inlet on the RR's is "squared off" a bit when viewed head-on; the GE and PW are perfect circles...easy to spot.


I got my head checked--by a jumbo jet
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