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LY777
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B777-200s Engines

Tue Jul 25, 2006 5:09 pm

I don't know if it is an impression or if it is true, the Trent engines seem smaller than than the General Electic ones on the 772.What are the dimensions?
Sacha

[Edited 2006-07-25 10:09:45]
Flown:717,727,732,733,734,735,738,73H,742/744/748,752,753,762/2ER/763/3ER,772/77E/773/77W, 788, 789, DC8,DC10,E190,E195,MD83,MD88, L1011, A3B2,A319,A320-100/200,A321,A332/A333,A343,A388
 
airxliban
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RE: B777-200s Engines

Tue Jul 25, 2006 5:23 pm

Has been discussed before. Do a search, the GE-90 is the largest, I think that the difference in diametre between the PW4090 and the Trent is minimal though.
PARIS, FRANCE...THE BEIRUT OF EUROPE.
 
sq452
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RE: B777-200s Engines

Tue Jul 25, 2006 5:33 pm

Its a fairly small difference. To the point I really can't distinguish whether it is a Pratt or RR Trent engine when I look at a 777. The only way I can tell is that the RR Trent seems to be a bit "longer" and sleeker than the Pratt which is less "tubular". I think (check this) that the Pratt is a bit longer height wise than the RR...but not by much.

Again minor details that, to the naked eye, I can't tell when i see a 777 land or what not. The only way I know off-hand is the airline (for instance UA 777 vs. SQ 777)
SIN > CVG > BOS
 
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kc135topboom
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RE: B777-200s Engines

Tue Jul 25, 2006 5:39 pm

But it does sound odd that the AA B-777-200ERs are equipped with RR Trents, while BA B-777-200ERs carry GE-90s.

Yes, I know about the deal BA made with Boeing and GE when they ordered the B-777.
 
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PM
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RE: B777-200s Engines

Tue Jul 25, 2006 6:07 pm

Quoting KC135TopBoom (Reply 3):
But it does sound odd that the AA B-777-200ERs are equipped with RR Trents, while BA B-777-200ERs carry GE-90s.

Why on earth is it "odd"? Anyway, sixteen of BA's 777-200ERs have RR, not GE.
 
LY777
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RE: B777-200s Engines

Tue Jul 25, 2006 6:09 pm

I can't find any topic about that
Flown:717,727,732,733,734,735,738,73H,742/744/748,752,753,762/2ER/763/3ER,772/77E/773/77W, 788, 789, DC8,DC10,E190,E195,MD83,MD88, L1011, A3B2,A319,A320-100/200,A321,A332/A333,A343,A388
 
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LTU330
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RE: B777-200s Engines

Tue Jul 25, 2006 7:02 pm

B.A sold the Engine Shop in South Wales to G.E, or a company owned by G.E . Of course this does not in any way imply that it had something to do with the first batch of B.A 777s being G.E powered  Wink
 
brendows
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RE: B777-200s Engines

Tue Jul 25, 2006 7:12 pm

Quoting SQ452 (Reply 2):
To the point I really can't distinguish whether it is a Pratt or RR Trent engine when I look at a 777.

Look at the white mark on the spinner, they are different Smile The pylon on the Trent is longer too.

Quoting LY777 (Thread starter):
What are the dimensions?

Fan sizes:
Trent 800: 2,79m (777-200ER)
PW4090/4098: 2,84 (777-200)
GE90-76B->GE90-94B: 3,12 (777-200ER/-300)
GE90-115B1: 3,25m (777-200LR/-300ER)
 
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LTU330
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RE: B777-200s Engines

Tue Jul 25, 2006 7:17 pm

RR Engines rotate opposite to G.E and PW, anti-clockwise, looking from the aft of the Engine forward . Of course it is not advised to get too close when Engine running to check this out !
 
LY777
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RE: B777-200s Engines

Tue Jul 25, 2006 7:41 pm

Quoting Brendows (Reply 7):
Fan sizes:
Trent 800: 2,79m (777-200ER)
PW4090/4098: 2,84 (777-200)
GE90-76B->GE90-94B: 3,12 (777-200ER/-300)
GE90-115B1: 3,25m (777-200LR/-300ER)

so the difference is quite important:2.79 vs 3.12

what about the fan size of an A340-300?
Flown:717,727,732,733,734,735,738,73H,742/744/748,752,753,762/2ER/763/3ER,772/77E/773/77W, 788, 789, DC8,DC10,E190,E195,MD83,MD88, L1011, A3B2,A319,A320-100/200,A321,A332/A333,A343,A388
 
brendows
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RE: B777-200s Engines

Tue Jul 25, 2006 7:53 pm

Quoting LY777 (Reply 9):
what about the fan size of an A340-300?

The CFM56-5CXs have a fan size of 72.3 inches (or 183.6cm.)
 
LY777
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RE: B777-200s Engines

Tue Jul 25, 2006 8:24 pm

Where could I find the fan size for every a/c?
Flown:717,727,732,733,734,735,738,73H,742/744/748,752,753,762/2ER/763/3ER,772/77E/773/77W, 788, 789, DC8,DC10,E190,E195,MD83,MD88, L1011, A3B2,A319,A320-100/200,A321,A332/A333,A343,A388
 
brendows
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RE: B777-200s Engines

Tue Jul 25, 2006 9:33 pm

Quoting LY777 (Reply 11):
Where could I find the fan size for every a/c?

Go to the website for the manufacturer of the aircraft engines, you'll probably find most of the info there.
 
LY777
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RE: B777-200s Engines

Wed Jul 26, 2006 12:22 am

OK, thanks for your answers
Flown:717,727,732,733,734,735,738,73H,742/744/748,752,753,762/2ER/763/3ER,772/77E/773/77W, 788, 789, DC8,DC10,E190,E195,MD83,MD88, L1011, A3B2,A319,A320-100/200,A321,A332/A333,A343,A388
 
brendows
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RE: B777-200s Engines

Wed Jul 26, 2006 3:43 am

Quoting LY777 (Reply 13):
OK, thanks for your answers

You're welcome wave 
 
MCOflyer
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RE: B777-200s Engines

Wed Jul 26, 2006 3:50 am

How I tell are the following characteristics

Noises
Nacelles
Operator

Also I look at enough plane picture on here (thank you to site founders for this features) to tell in real life. Its bothersome enogh to have someone question you about type of plane it is when you really know.

MCOflyer
Never be afraid to stand up for who you are.
 
psimpson
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RE: B777-200s Engines

Wed Jul 26, 2006 7:12 am

I also find it difficult to tell the difference between the 3 different powerplants on the B777 ie GE,PW and RR.
When i see a BA or EK B777 taxing by at LHR ,i can never tell whether it is a RR or GE powered by looking at the engine alone.
The only ways i can tell the difference is 1) aircraft registration 2) sound produce by the engine.
I also find it difficult to tell the difference between the PW4000 series and GE-CF6-80C2 powerplant that are used on the B747-400 just by looking at the engines.
 
aerokiwi
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RE: B777-200s Engines

Wed Jul 26, 2006 7:58 am

Quoting Psimpson (Reply 16):
I also find it difficult to tell the difference between the PW4000 series and GE-CF6-80C2 powerplant that are used on the B747-400 just by looking at the engines.

The PW engines are much shorter, smaller in dimension overall. The GE CF6s are longer, sleeker and better proportioned, in my opinion.

As for the 777 engines, the GE90s are almost square like from the side on view, while just being considerably larger overall. A good way to determine this is to compare the engine to the fuselage. Those GEs really stick out, I love 'em!

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