Bear in mind that IIRC that is 90 seconds with half the exits! And that's going to be one hell of a drop from the upper deck too.

Out of curiosity, on some of the assembly line pics, it looks like sllides will be stored under the door rather than on it?

If you want a study of an evacuation, there was a BA flight ex-IAH that returned and evacuated. Someone knew someone on board who wrote a de-brief of the incident.

It brought up a training day at Cranebrook, which I don't think ever got off the ground here.