Originally Posted by
CW247
To make it clear, I set the new FL, pulled for OPEN CLB, read the FMA, the N1 was on it's way to reaching maximum CLB thrust. At this stage I dialed in the new speed, the N1 fell backwards to chase the speed, not the pitch!
15 years of operating this aircraft, this is not the logic I have experienced before. I've flown MSN 300 all the way to 7000. In fact, I flew LEAP based NEOs for another company, and it didn't happen with those either. I'm now flying LEAP based NEOs that are under 1 year old and see this happening. My very experienced colleague said he too has never seen this behaviour before on A330s, A340s or A350s.
My understanding is once Speed is selected (pulled), the speed value set becomes the #1 priority over everything else. Open Climb will continue (ignoring constraints) but the priority is the speed. "How" it does that, pitch/thrust etc, how much OF pitch and thrust, etc, may indeed be a software thing.