pet4amn

Thanks, with lower temperatures it indeed performs as it supposed to do, but i encoumtered this strange climb perfomance when departing from Doha. I double-checked the weather: it was +41 on the ground and ISA +23(live weather in MSFS). Still i don't think the aircraft issupposed to perform like that under these conditions as many real-life Qatar A350 super longhaul flights to the US(e.g. QTR85Q) take off at MTOW in similar conditions.

Since the update 1.1.1, the A350 appears to underperform during climb after take off at MTOW. After passing FL230-250, the vertical speed drops to around 200-300 FPM, and in some cases the aircraft even begins descending despite showing CLB mode on the FMA in order to maintain the speed set by the FMC. Reaching the initial cruising altitude (e.g. FL320) takes up to 50 minutes and, in some cases, over an hour. Interestingly enough, in MSFS2020 A350 appears to perform normally during climb under similar conditions. Applicable to both -900 and -1000. Any help or advice would be much appreciated.