Hatching aylesbury duck eggs?

[QueenDuck]

I am getting some Aylesbury duck eggs in the post soon and I need to know what temp and humidity and whatever else I need to do. I am very new to this and I have looked on the Internet but I have seen so many different answers that I don't know who to go with! I have seen people saying 45-50% and 65-80% and I'm just coufuzzled I don't know what to set it too. So anyone who has any idea on what settings i should put my Aylesbury duck eggs on please reply. Oh and I forgot to mention how often do I need to set the turning to?
Thanks!