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Question Re: BA 777s -- Usage By Engine Type  
User currently offlineAT From United States of America, joined Jul 2000, 992 posts, RR: 0
Posted (6 years 5 months 3 weeks 2 days 14 hours ago) and read 2814 times:

I am wondering for airlines that have big fleets of aircraft powered by multiple engines types (e.g., BA with both GE and RR powered 777s), if the engine type determines the scheduling of the aircraft for specific routes? It seems here at New York that we predominantly though not exclusively see the VII* series.

Related but unrelated, does the price of the aircraft vary if you choose one engine type over another?

9 replies: All unread, jump to last
 
User currently offlineTdscanuck From Canada, joined Jan 2006, 12709 posts, RR: 80
Reply 1, posted (6 years 5 months 3 weeks 2 days 14 hours ago) and read 2788 times:



Quoting AT (Thread starter):
I am wondering for airlines that have big fleets of aircraft powered by multiple engines types (e.g., BA with both GE and RR powered 777s), if the engine type determines the scheduling of the aircraft for specific routes?

The performance between models is close enough that engine type would only require specific scheduling if you were right at the bleeding edge of the payload/range curve or you were going to an airport that would force you to do a full power takeoff and you have different thrust ratings.

That said, for operational reasons you might want to keep your engines on different routes so your outstations don't have to stock all the tools and parts for both types.

Quoting AT (Thread starter):
Related but unrelated, does the price of the aircraft vary if you choose one engine type over another?

Sort of. The price of the aircraft itself is pretty insensitive to engine selection but the price of the engine varies.

Tom.


User currently offlineLH423 From Canada, joined Jul 1999, 6501 posts, RR: 54
Reply 2, posted (6 years 5 months 3 weeks 2 days 14 hours ago) and read 2781 times:

Generally speaking, the RR-powered 777s are used on longer flights to deep Africa, South America, India and Asia/Australia as they are fitted with crew rests. They also serve destinations like YUL and DEN. 777 markets that don't have First class.

The GE-powered 777s are more commonly (but not exclusively) used on routes to the US and Canadian east, Middle East and northern Africa. As well as all routes out of LGW. This is particularly true for the G-ZZZ* registered aircraft as those are original A-market 777s with shorter range and a larger First class (17 seats v 14 on the rest of the GE fleet).

This is just a generality. I don't have the time to go into more detail. Also, nothing is set in stone. The RR-powered 777s are often seen in cities like BOS, IAD and ORD and GE-powered 777s can be seen in India.

LH423



« On ne voit bien qu'avec le cœur. L'essentiel est invisible pour les yeux » Antoine de Saint-Exupéry
User currently offlineBAW217 From United Kingdom, joined Jun 2007, 122 posts, RR: 0
Reply 3, posted (6 years 5 months 3 weeks 2 days 14 hours ago) and read 2781 times:

Hi,

BA mainly operates the YMM* Series to India and the Far East/Australia.

The YMM* series along with the VII* series have 2 layeouts, with First and Without Fisrt Class.

YMM* Series aircraft do visit N America, but not as frequently as the VII* Series.

YMM* series are always (99.9%) used on the following routes (Winter 07):

Beijing
Calcutta
Denver
Dhaka
Islamabad
Luanda
Madras
Mumbai
Nairobi
Singapore/Sydney
Shanghai

The ZZZ* Fleet are used to the Middle East and NE USA only, as they are straight 200's.

Cheers

[Edited 2008-01-23 13:52:29]

User currently offlinePlanesarecool From United Kingdom, joined Nov 2001, 4119 posts, RR: 11
Reply 4, posted (6 years 5 months 3 weeks 2 days 11 hours ago) and read 2667 times:



Quoting BAW217 (Reply 3):
YMM* series are always (99.9%) used on the following routes (Winter 07):

Beijing
Calcutta
Denver
Dhaka
Islamabad
Luanda
Madras
Mumbai
Nairobi
Singapore/Sydney
Shanghai

Luanda is a GE route. The following are also exclusively RR routes

Montreal (3-class)
Seattle (BA049 on days operated by 777)

Quoting BAW217 (Reply 3):
The ZZZ* Fleet are used to the Middle East and NE USA only.

Plus Abuja on Wednesdays.

Many flights are operated by both GE and RR powered aircraft and 99% of the time they are scheduled as so. For example, Calgary is a GE route, except on Fridays, when it is operated by RR aircraft. There are a few occasions where, for whatever reason, one type may operate a flight that is scheduled to be operated by the other type.


User currently offlineJohnClipper From Hong Kong, joined Aug 2005, 833 posts, RR: 0
Reply 5, posted (6 years 5 months 3 weeks 2 days 4 hours ago) and read 2522 times:

Why the change from GE to RR in the first place?

User currently offlineKC135TopBoom From United States of America, joined Jan 2005, 12128 posts, RR: 52
Reply 6, posted (6 years 5 months 3 weeks 2 days 3 hours ago) and read 2472 times:



Quoting JohnClipper (Reply 5):
Why the change from GE to RR in the first place?

BA had some type of disput with GE in the 1990s.

As I understand it, the G-VII airplanes are all GE powered B-777-200ERs.

The G-ZZZ airplanes are all GE powered B-777-200s.

The G-YMM airplanes are all RR powered B-777-200ERs.

Is that correct?

Airplane #G-YMMM that crashed the other day was a RR powered B-777-200ER, is that correct?


User currently offlinePHKLM From Northern Mariana Islands, joined Dec 2005, 1198 posts, RR: 2
Reply 7, posted (6 years 5 months 3 weeks 2 days 3 hours ago) and read 2447 times:



Quoting KC135TopBoom (Reply 6):
Airplane #G-YMMM that crashed the other day was a RR powered B-777-200ER, is that correct?

You've got more than 2000 posts to look that up...
Yes it was.


User currently offlineKC135TopBoom From United States of America, joined Jan 2005, 12128 posts, RR: 52
Reply 8, posted (6 years 5 months 3 weeks 2 days 2 hours ago) and read 2435 times:



Quoting PHKLM (Reply 7):
You've got more than 2000 posts to look that up...

Yeah, I'm trying to stay away from the LHR BA B-777 crash posts, versions 1 through about 158.  bouncy  (all with 200+ replies)

Quoting PHKLM (Reply 7):
Yes it was.

Thank you, sir.


User currently offlineCarduelis From United Kingdom, joined Dec 2001, 1585 posts, RR: 10
Reply 9, posted (6 years 5 months 3 weeks 2 days 2 hours ago) and read 2429 times:



Quoting KC135TopBoom (Reply 6):
BA had some type of disput with GE in the 1990s.

The 'dispute' was in fact a very cosy deal between GE and BA.

Simply, in exchange for using GE engines on the early BA 777s, BA gave GE their engine overhaul base in Treforest to GE. This base stills overhauls BA aircraft, irrespective of engine type.



Per Ardua ad Astra! ........ Honi Soit Qui Mal y Pense!
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