Even if GMT/BST had been confused by plus or minus one hour, the timings were still inaccurate. There was
both a parachute jump and Seafire/Swordfish flypast on each day, around about 1230-1330 BST
and 1630 - 1730 BST.
The massed ascent of hot air balloons has been NOTAMed in the past but not this weekend; mind you, none of them could get it up anyway
.
There is some software/website called Notamplot which I believe transposes the NOTAMs onto a map of the British Isles - may help some of you.
As a Life Member of the Society, maybe I'll suggest for future events they'll need an Aviation Committee - with a membership of one.
Cheers
Whirls