Not sure when the Classic does it!!!
Muduckace The Classic usually takes off with the packs OFF. Packs introduced after airborne by the old bloke who no longer gets a position in the cockpit. Always set the cabin pressure controller to 1000' above cruise level, to reduce the chnces of getting an overpressure, and ideally the cabin would be fully depressurised by touch-down. All manual, no "electronic magic" involved, just the guy whose presence allowed the MEL to be a lot thicker than it is without him being there.