This was too good an opportunity to miss, so I stepped out of the office at lunchtime and stationed myself on the Hungerford footbridge. Expectant, upturned faces were clustered everywhere: on the roof of the Shell building, on Waterloo Bridge, in the pods of the London Eye. At 1 precisely people began to point in a different direction to the one I'd been straining my eyes in, and I turned to see the nine red Hawks trailing red, white and blue smoke across the sky in their Big Battle formation. The four Typhoons followed in a diamond.
Here is a photo taken by somebody else. If you're interested, I was standing on the further bridge, just to the right of the rightmost stanchion.