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-   -   Qantas 767s (http://www.yssyforum.net/board/showthread.php?t=3834)

Andre R. 22nd August 2009 07:27 AM

Qantas 767s
 
Hi,
Has Qantas ever published figures wich 767 is cheaper to operate the GE or RR powered one?

Thanks
Andre

Jack B 22nd August 2009 01:08 PM

I believe I read somewhere the GE's burn less fuel during descent...

Jason Carruthers 22nd August 2009 01:42 PM

Well there has to be a reason why only two airlines brought only a handful of RR powered 767's

Andre R. 22nd August 2009 02:47 PM

When BA bought the 767 in the late '80s they wanted to streamline maintenance.
747 and 757 as well as TriStars used all the RB211 engine. BA was the launch
customer for the RR powerd 767 ,if I remember correct. I have to chase this up
I still got some journals from that time.

NickN 22nd August 2009 03:36 PM

As far as I am aware the GE powered 767 is the more fuel efficient of the two.

QF only purchased the ex-BA RR powered 767's as they were going for a steal at the time is what I have heard.

Martin Buzzell 23rd August 2009 03:18 PM

On a side note. In the flare, when closing the thrust levers, the Rb211's run down to idle very quickly. The CF6 is a bit slower being two shafted. So you have to treat them a bit differently just before touchdown.

NickN 23rd August 2009 05:53 PM

Martin, is that why the RR powered a/c hit the deck like a rock?:D

On that note what is the difference (apart from being single shafted) and benefit of a single shaft RB211 vs the twin shaft CF6?

Owen H 23rd August 2009 06:36 PM

Nick,

I believe the QF 767's were leased from BA, not purchased.

I am not sure that BA really want them back!

As to handling in the flare... maybe thats my problem! I've never had the brainspace to do anything other than just close them!

Mick F 23rd August 2009 06:43 PM

Owen,
The ZX series were leased originally from BA for a number of years, and then at the end of the lease Qantas purchased them I am lead to believe.

Mick

Nathan Long 23rd August 2009 06:45 PM

Nick,

I think you'll find the RB211 has three shafts.


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