Thanks BOAC
I do remember something about that a number of years ago but it seemed to die a death. As I remember, it was principally aimed at reducing the effect of strong wind conditions on the landing rate. It seems to me the touble might then be that the types that are typically slow once de-restricted may then be slower for longer and as the traffic behind would then be 170kts for longer it may lead to greater catch-up.
I don't feel qualified to give an opinion really but if you feel that it is worth looking at then can it be raised through some mechanism and let's trial it? I know a gentleman (CM) who has done a lot of work with NATS' staff on the mathematics of final approach spacing and speeds.
As Porco has correctly pointed out, with the rule changes for 2.5nm spacing, we cannot leave speed fluctuations unchallenged as they will quickly drop us in the doodoo. And I promise you, the first time somebody does it to me will be the last time; I will flat refuse to do anything less than 3nm.
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