HGFC1:
Glad you enjoyed the day and thanks for sharing the Pix. It is good to see Concorde outside again.
I believe there were about a dozen or so aircraft who were unable to come due to weather -- two fronts, one to the east and one to the west (with heavy rain according to the radar picture) with Duxford in the clear in between the two. Still, that's the way it is with flying. Hope to see the others on another day.
Next Bonus Day is for single engine Pipers on 3rd June, when there's also a mini-display planned.
Alan.