Hawks going through London CTR in future
I imagine the CAA will at some point think long and hard before they let military single engine turbines over central London.
At 1300 ft down the mall.....more like below 1000ft temporarily to wow the crowds....the donkey stopping won't give the pilot much chance to respond....quick pull up to trade speed for height and reach best glide speed. And then see if it can be put down in the river. And eject just before putting it into the Thames.
But the CAA allows this on overcast days. VFR on top with no sight of ground with no donkey.....bad place to be.