Appalling news from the air show at Shoreham, UK today with a Hunter crashing into the adjoining highway (A27) killing 7 and injuring many more. I've watched the video a few times to try to get my head around what went wrong. Of course the UK authorities (AAIB) are conducting a investigation and all will be fully revealed in due course.
It appears the Hunter pulled up into the vertical from quite low, initiated a left roll during the pull up so was 90 degrees off the original heading when inverted, so as to exit the manoeuvre 90 degrees to the right of the original heading - normally this would be a very graceful blended vertical/rolling manoeuvre as part of his display. Appears to me that he started this manoeuvre too low. If he'd had another 100 or so feet, he would have just cleared the trees and road. Another 500 feet it would have been perfectly safe. Other factors - who knows at this stage. It was a warm day so density altitude could have played a part as well on aircraft performance. What works at say 20 deg C, might very well not at 29 deg C.
My opinion has been for a long time is to restrict vertical manoeuvres with high performance warbirds - particularly at smaller air shows. We've all seen this happen time and time again and frankly I'm sick to the base of my stomach seeing this happen again. This appears to have been a very experience pilot - ex-RAF Harrier pilot now airline pilot. So, when this happens to a very experienced pilot, one really then needs to question whether it is right for these sorts of manoeuvres to be carried out at a air show in such a high performance machine. In hindsight, perhaps the A27 should also have been considered part of the crowd line, not to be crossed when doing aerobatic display manoeuvres overhead - transiting yes straight and level or in shallow climb/decent. The awful thing is seeing the Hunter just prior to impact at a very high angle of attack (stick probably full back at this stage) and some wing wobble indicating deep into buffet - perhaps fully stalled and mushing in.
I can only guess now that there will be a shake up of civilian fast jet operations at air shows, given the recent tragedy involving that Gnat as well. My thoughts go out to the families and friends of those people involved in this horrific tragedy. This just should never happen at a air show because it need not happen. It's just so upsetting and disturbing to see this kind of tragedy - at what should be such a fun and joyous event. Very sad day for aviation.