Leaderboard

BTW...after setting the proper parameters, I was able to conduct a safe/uneventful 200NM flight at 20,000' MSL. Thank you sir!!!

I will take a look in the archives. I believe I have one from a while back. I totally agree. We rarely use LVL change from cruise though the few times we have done the aircraft handles it quite well. We actually used it recently from cruise to catch our path from a late descent clearance in which we also reached a 5000-6000 fpm rate albeit the AP did this gradually with no more than -5 degress nose down. What I think the OP is experiencing and the same thing I have seen is an aggressive pitch down to 6000+ fpm in a matter of seconds with the speed blowing past the target speed. I'll try find my video.

Quite familiar with all the Air Cond and Pressurization instrumentation but greatly appreciate your in depth explanation and your example. If you're interested, I'd like to send you a pdf copy of the actual wording contained within the real POH on the subject. Email me at <randy.passeno@gmail.com> and I'll do just that. Now, I'm going to attempt another flight using your recommendations

I found this one really helpful, not intimidating in terms of length nor detail. Once you've watched this one you will be able to get your aircraft to the RWY in no time. When proficient with this, you can dive into much more detail with the FAAV videos.