Fascinating explanations, thank you so much!
Further one coming, concerns Prague again, and based on what I have learnt here. The airport has put out a blast of
PR about its plans for the second -parallel- runway, and to quell criticism due to the new runway being closer to the built up area than the current main one, they have asserted that the new one will be used mainly for landings.
But I then wonder what that implies about the overall operation if they have the two parallel runways? I think its true that the prevailing winds are westerly. So I suppose, that they see both runways being used most of the time, and both in the same direction, correct?
But if the winds shift, and we get a Beast from the East - and that does happen - they will have to either use the new runway for take-offs, or, in order to deliver their "promise" not use the new runway until the winds allow it to be used for landing again.
Is that a fair summary of the likely plan?