Richair
Why don't airlines try the Crabair (Royal Air Force Transport Command as it use to be known) system and put all the seats except the aircrew's facing backwards? Many plus points here. Most crashes seem to have the kite going roughly forwards; no need to learn or even know of a 'brace' position; no whiplash; no real need to announce the emergency, as the first thing to happen on "brace - brace" is that a cloud of prayer rises to the heavens, and passengers get in a muddle about what they were told about braces. Just a thought.