Not entirely related but I remember when I was an apprentice at RAE Farnborough many years ago. 3 AN124s airlifted the Land Rover Camel Trophy teams out to Siberia I think. The sun came out and the aircraft started sinking into the taxi ways. Even forced cooling with water only meant that they had to be moved ever hour to prevent damage. We had seen these aircraft many times at Farnborough but they were ‘show weight’. When the aircraft left they conducted their familiar engine checks on the runway. It was only then that we realised that the aircraft were really heavy and used maximum take off power to depart. Amazing the size of the bits of turf from the edge on the runway that were lifted and hurled at cars.
Aircraft at air shows are very light indeed.