Hi Roffa,
Thanks for that, very interesting. The links I already had, and still say nothing about most controllers wanting a link between the 'formation number' and the actual aircraft registration. But good to see the separation requirements written down...
Does look as if our hour between first and last arrivals (the separation on departure is often less than 2 minutes!) is pushing things a little
Thanks for all the input, onward and upward... Sam.