I'm not saying you should be landing on an unsuitable runway. And 45kts xw is clearly unsuitable. I'm reacting to the 767 pilot who says he always required the long runway because why wouldn't you. It's the safest option.
The "somewhere" between A and B is the key. Unfortunately you have to be conservative to account for all aircraft types, but I think it could be airport specific. Why should YSSY grind to a halt on 25 only when the crosswind is 20kts, is 20kts really significant for the majority of aircraft types landing at YSSY? There would be a massive benefit to making this airport specific.
For example the crosswind component for converging arrivals on 01/14 at Brisbane is 20kts. Which is appropriate given the much shorter length, 30m width and nasty double go around confliction. But with parallels at YSSY, raising the threshold by only 5 kts or so could save millions of dollars, is more than safe, and done at many other airports around the world.
Last edited by 1Charlie; 29th Dec 2016 at 23:43.