Serious firepower

snowy_again there's a regular weekly trip up and down the thames by two Chinooks, they manage to shake the building I work in. Royals and the like apparently.

Completely different, but also impressive is when the horseguards thunder through London from green / hyde park back to their barracks somewhere in the north. Always slightly awe inspriring to watch 30 - 40 horses go past at a good speed with only 1 fella per 4 horses...