To clarify my original query: im a two engine bus man. Never been anywhere near a quad.
Yes, the question was inspired by the BRU accident, and also by another thread about tri-engines, and how well they will fly after two out.
I am aware that a two engine out on takeoff is not considered for planning. I was only after a general idea and perhaps a few stories
The answers from 411a and point8six are the sort of thing I was hoping for.
Thanks people!