Interesting that they are still using the old solid drogue
Older than 1962. The drogue on the Valiant was the original flat fronted probe. Those was changed to the standard NATO probe which had a rounded nose.
The underwing tanks held 12,000 lbs. of fuel each. At the top of descent the checklist called for the residual fuel to be jettisoned. My self-appointed task was to hoard as much fuel in them as possible so as to leave a nice white cloud over the coast.
Unfortunately this would leave insufficient fuel to pound the circuit for ages so we would then end up in the bar.