Varsity Changing gear
There was a call in the climb somewhere 8 to 10,000 "Changing into S gear". Where upon power ran down for about 5 seconds and then returned to normal.
What was going on? Was the "driver" actually changing up a gear or in the car sense down a gear to spin the supercharger faster? Or engaging the superchargers which had not been required at the lower altitude or engaging a second stage of supercharging?
From the kid down the back who was too shy to ask then.