BOEING747400
Topic Author
Posts: 292
Joined: Tue Sep 11, 2001 3:47 pm

Visual Differences In 777 Engines

Fri Apr 11, 2003 4:58 pm

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.
 
tsentsan
Posts: 1921
Joined: Mon Jan 28, 2002 10:48 pm

RE: Visual Differences In 777 Engines

Fri Apr 11, 2003 6:11 pm

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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Photo © TTT



PW:
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Photo © PolishAir42 - Chicago Aviation Photography



GE:
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Photo © Paul Paulsen

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777236ER
Posts: 12213
Joined: Sat Aug 18, 2001 7:10 am

RE: Visual Differences In 777 Engines

Fri Apr 11, 2003 8:42 pm

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.
Your bone's got a little machine
 
N79969
Posts: 6605
Joined: Tue Jan 29, 2002 1:43 am

RE: Visual Differences In 777 Engines

Sat Apr 12, 2003 12:43 am

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.
 
JBirdAV8r
Posts: 3454
Joined: Sun Jun 24, 2001 4:44 am

RE: Visual Differences In 777 Engines

Sat Apr 12, 2003 1:25 am

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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