Thanks Algy for the great reports.
In an earlier life I was an officer on big passenger ships. In an emergency we were faced with the safe evacuation of up to 3,500 passengers and crew (on the old Oriana) using only half the boats available but a lot more time to do it in.
I've flown a lot over the past 30 years or so and (touch wood) have never been involved in an evacuation. I hope I never have to in 'real' circumstances.
It may have been a test but the speed element would still have been there and to get that many people out in such a short time is really impressive.
Only two other things to say. (1) How soon before the first airline crams 853 poor souls into an A380 and (2) You're going to have to get a new nic Keiron