118.9 - thanks.
On the specifics of risk assessment, this phrase jumped out at me in the AAIB second interim report:-
The risk assessment for the 2015 Shoreham Airshow did not show the range of hazards presented by different display aircraft that formed the display and did not consider specifically where the hazards would occur or who would be exposed to them. There was no evidence of an attempt to consider either a hierarchy of protection or control.
The discussion expands then at great length, but basically what it says is that a generic risk assessment was used at Shoreham, that didn't take detailed account of the nature of the aeroplanes and manoeuvres in the display.
G