Originally Posted by sing
The A330-203 was at max cruise altitude and at faster than normal mach (because of the high/heavy choice). Mach .82 and encountering moderate turbulence
- I appreciate you do not fly the 330, but you may wish to note that flying at .82 instead of .8 reduces the max (and opt) alt by 2000' and puts it well BELOW 35000 at anything warmer than ISA+17 at the 0210Z estimated weight. I suspect there may be a strong element of 'too high' here with the ITCZ to penetrate - I'm not sure, of course, what manoeuvre margin the graphs posted a while back allow for.