There were 9 on the ground at Farnborough yesterday!
Six got airborne about 1300 and disappeared leaving 3 on the ground.
Six returned and broke into the circuit to land about 45 minutes later (before the show proper started)
Nine remained on the ground for the rest of the day because the forecast front duly arrived and put paid to their display (one supposes)!
Airbus 380 was extremely impressive - stayed (just about) inside the airfield perimeter and never got above 160 kts (that's according to the Airbus Chief Test Pilot who was flying it - an ex-RAF Buccaneer mate who came for a beer afterwards).
Foldie