After all, TCAS does not know that the winch will run out of steam at 1500' or so.
I know nothing about gliding but do know that many UK gliding sites are marked on the charts as cable hazards to in excess of 3000ft.
Can cables really go this high? or does this hazard just relate to tow releases?Allowing for the slant angle at time of cable release it would seem to necessitate runway lengths well in excess of 1000metres?