Originally Posted by
BahrainLad
I am sure that there will be some study saying it aids the situational awareness of the cabin crew or some such.
Like the bloody great
thud when the gear locks up?
More pings are needed to indicate flap position, in case anyone fails to notice a large reduction in wing surface area and a consequent change in aircraft attitude. And, of course, there's the distinctive ping that says "We're safely airborne, coffee with milk and 1 sugar".