Military action

I worked from home and mid-morning these helicopters flew very noisily over. There was a big military display marking 100 years of the RAF taking place in central London. The rest of the display didn't fly over my house which I'm happy about. It reminds me of the military air displays that flew over the town I grew up in and meant you couldn't hear anything the teacher said for 2 weeks of school. Although this was a regular occurrence, I always felt nervous of military aircraft flying over a residential area.

(Backblip catchup)