Originally Posted by
EMAW
51000 is the all engines service ceiling. Nothing that’s in the manuals is theoretical however, the conditions must be right. And anything over 43 ish may require a step climb.
cool.. I fly the CRJ which can reach FL410.. but I’ve only been there a handful of times, almost always repo flights.. how common is FL510? Seems that one I mentioned reached 495 but couldn’t quite coax it any higher lol.