Thanks for the info about the Super Viscount, chaps! I must search the book out and read again, one of my favourites also.
Washoutt, I think the prototype Concordes had a crew escape hatch to make simplify bail out in an irrecoverable situation, not found in the production aircraft.
I've seen quite a few pics of light aircraft with anti-spin 'chutes fitted over the years, presumably while exploring low speed or aerobatic handling,