Originally Posted by
theATCO
.......... only warn an aircraft of wake turbulence (let's say when the loss of separation equals to less than 0.5 nm) and ask them if they want to continue..........
I would suggest it’s a bit more nuanced than that.
If there is a loss of wake turbulence separation of up to 0.5 nm and you’ve taken remedial action (such as further speed reduction or there’s a significant ‘pull out’ due wind gradient) then it may be prudent to caution the pilot as to loss and ask if they wish to continue.
I don’t think anyone would condone habitually busting vortex spacing by up to 0.5 nm and just asking if they want to continue.
In either case, a loss of 0.5 or greater should result in the following aircraft being repositioned and as you say, this would be apparent in local orders or practices.