Has anyone on this thread consulted the ACAPS document?
I've misread the A359 chart on the phone which changes the conclusion entirely. It should be:
34t payload @ 7,700nm
30t payload @ 8,200nm
25t payload @ 7,700nm
A particular individual seems to be under the impression that the A350-900 has similar payload-range of a MD-11 non-ER. If that were the case, there would be waves of cancellations as the MD-11 missed promise by a far smaller margin than what this individual is implying.
ACAPS doesn't reflect actual cabin weight (ACAPS assumes a very light cabin), catering, reserve fuel, etc. In real world, for example, DL188 flight from PEK to DTW
), the performance is 49t payload @ 5763nm. That flight took off at 275t. Also notice that PEK-DTW is downwind. The reverse flight can take less payload.
While I know you get those number from ACAPS, in real world A350's performance is not as good as you suggested (true for all aircrafts, not just A350). Some member has done a very good job analyzing the result, using real world data (viewtopic.php?f=3&t=1393909&start=350#p21034697
Still same story. Read carefully tech/ops thread: viewtopic.php?f=5&t=1406387#p20792909
Posted by thepinkmachine 787 pilot
We can do a comparison. I have 787 flight planning data from the manual, I guess you can provide A350 numbers. It would be interesting to see what comes out of it.
Below are 787 trip fuel figures @LRC:
I assumed 40T payload and ~8T reserve fuel at landing
5000Nm - 54T corrected by later to 56.3T
6000Nm - 70T
7000Nm - 84,5T*
* Above MTOW, can’t carry 40T payload that far
Posted by Zeke A350 pilot
Okay the numbers I got from an early version of the performance program that I used during my initial training (new version is better now they have more data).
Assumed a DOW of 135 tonnes, Landing weight of 183 tonnes.
4000 nm - 45.2
5000 nm - 57.5
6000 nm - 70.3
7000 nm - 83.9
I think it would carry that payload out to around 8000 nm.
Given what I see when I plot the two series, your 5000 nm number looks to be in error, should be around 57 tonnes.
789 can lift 40t further then approx 6700nm becuse is MTOW limited while A359 can lift off that load to 7000nm at 266,9 T of TOW.
On the topic. There is no real indication A350 cannot do LAX-SYD-LAX with full pax and bags in DL configuration with some spare weight for cargo.