|Quoting BA787 (Reply 1):|
Could Concorde hav survived a barrle roell?
It's a 1g manoeuvre. No technical reason why it couldn't be done but I'm sure a few armchair experts here would consider it dangerous, hence the reason airliners aren't rolled very often and never with fare-paying passengers on board.
There's some information here, within the discussion about loops:
Could The Concorde Do A Loop? (by Vio Oct 20 2006 in Tech Ops)