I think all A380's have the same certified takeoff weights so the only difference would be in the resulting takeoff performance. QF probably need the higher thrust engines to enhance takeoff performance out of MEL, SYD or LAX on a hot day for a maxed out transpacific flight without incurring weight penalties.I do realise that.
Which is why I posed the question.
I guess my real question is what is the specific requirement for the 72k thrust vs 70k, and how often is it required? And what are the specifics of that requirement?
I would think that eventually all the QF A380's would return to service apart from the badly damaged one involved in the incident which hasn't been repaired yet,it may be awhile before that aircraft is back in the air.Which is the aircraft coming back into service.
There is a strange lack of information coming out of QF on all of this such as;
Which is the aircraft coming back into service.
Which aircraft have had their engines changed.
Why do some engines need to be replaced whilst others do not.
When do they expect other A380's to come back into service.
What are the new service directives that have to be followed.
And I really like this one from the QF website;
"Do you have confidence in the A380 and the Rolls-Royce Trent 900 engine?
Yes. We recognise the seriousness of the QF32 incident, but also have confidence in both the aircraft and the engine."
QF please actually explain to the public why it is that you have confidence in the Trent 900 after telling us that 40 of them on 21 aircraft are going to be replaced.
AFF Supporters can remove this and all advertisements
I have to wonder if RR has managed to provide any new/modified/upgraded engines yet for the QF fleet? Numbers mentioned are that 40 QF engines need to be replaced. So have the QF A380s in LAX already had engine changes which is why they are being brought back to Aus to commence the SIN/LHR services rather than using the ones in SYD and LHR.
NM, I think that was either a goof on Joyce's part, or else misinterpreted. Given that Qantas only has six (correct me if I am wrong) of the A380s operational at the time of the incident, then a worse case scenario would mean it was facing the issue of replacing 24 engines immediately.
This means that either the other 16 engines would relate to other four planes due in service: 2 due by the end of 2010, and another 2 in Frbruary 2011 - and would you have to replace those engines before they become operational? Given that R-R chaged the specs of the engines on new deliveries, I find that a difficult one to get to the bottom of.
I would think that eventually all the QF A380's would return to service apart from the badly damaged one involved in the incident which hasn't been repaired yet,it may be awhile before that aircraft is back in the air.
They are concerned about LAX, is that due to the higher rated takeoffs?
Underwriters restrictions?...
Insider?..
I would say it has very little to do with your over water scenario but I'm happy to be proven wrong.I think you'll find it also has a bit to do with the fact that LAX-Australia flights are completely over water with few possible diversion airports if anything went wrong. Hence why they are flying the A380s back from LAX without pax. In contrast, the Kangaroo route flights are largely over land, with suitable and close diversion ports available pretty much the whole way.
Certainly not a great vote of confidence in the RR engines, replaced or not!! :shock:
Correct. I believe the number 40 was relating to the three current operators and not just to Qantas.NM, I think that was either a goof on Joyce's part, or else misinterpreted. Given that Qantas only has six (correct me if I am wrong) of the A380s operational at the time of the incident, then a worse case scenario would mean it was facing the issue of replacing 24 engines immediately.
I would say it has very little to do with your over water scenario but I'm happy to be proven wrong.
You are getting more info out of QF then what you did with SQ.
No company will ever tell you if you are flying on a plane that has had an incident before. I was on the QF A330 a few months after it had its incident, and FWIW I would not have known that it was the one involved with the QF72 dramas.
What is the point of answering the other questions you have asked. SQ never told any passengers on which engines they replaced. According to AJ, he stated that RR know what engines have the fix, and apparently have worked a fix for those ones that don't need replacing.
If you are commenting on a lack of information from QF, surely you would make comment about smaller amount of information coming from SQ
There is a strange lack of information coming out of QF on all of this such as;