Originally Posted by
tubby linton
321XLR I don’t know what protections you are talking about. You are fully protected in V/S mode. Perhaps you mean mode reversions, they are described in DSC 22_30-40-110
I think he meant that when you go on V/S plane will keep ROD and speed could keep increasing during descent if you ask for too much v/s, and go faster than atc/company restrictions. Whereas in OP DES ROD will reduce to try to maintain the desired speed.