Originally Posted by
ScepticalOptomist
Can you assume a minimum climb rate and ground speed then determine the time taken to reach a specified altitude or distance?
That's the whole point I'm trying to make: performance calculations won't cover you in every aspect. If people claim it's covered, I presume these are things done and checked in the simulator by a standard set of procedures.
Take Geneva 22 with a 3,4% climb gradient starting from 1500ft up to 7000ft. Standard 2,5% is 400-500fpm, (a performance check that we used to include in single engine go-arounds). 3,4% requires more like 600-700fpm. If with 10' thrust, you have to climb 5500ft you know it is going to take you already 8 minutes and there is 2 minutes left to accelerate. We have a 5' TOGA limit, but the performance tool we use is never going to warn us, it is up to the pilots to know and adapt and not think "it is covered".