Originally Posted by
Check Airman
My suggested way is with OP CLB. What I'm saying is IF i opted to maintain a specific VS with climb thrust, I'd do it with the AT off. I wouldn't employ pineteam's technique, but it's not against SOP (at my company) and isn't inherently unsafe. I can't criticize him any more than I can criticize somebody for intercepting a localizer in NAV.
How things go around. In old 747 classic for climb only IAS or vertical speed was available, and off course Auto throttle was not available so CLB thrust was manually set. When change over altitude was reached you had to maintain the Mach in VS mode. Later Mach mode and FFRATS(Full Flight Regime Auto Throttle System) was developed the practice of VS was stopped and you simply selected Mach mode for climb. Now in a sophisticated FBW A320 some prefer the archaic practice.