Only seen from the ground.
Lord Mayor's Show, London, I am guessing about 1990. Formation of four Sea Kings were to build overhead London City one Saturday lunchtime, and presumably head towards Central London from there.
Absolutely sheeting with rain, low cloud, all that (it would be unkind to say "typical Duxford display weather....."), nevertheless they came in to have a shot. From our house about 1 mile north of LCY tremendous noise and little glimpses of the holding aircraft in between the clouds scudding across the sky. Cannot possibly have been VMC for them. This went on for about 10 minutes.
Eventually it was called off.
Anyone here on board ? Looked like the sort of event you wouldn't forget.