Source41

No worries. Just thought it would be cool but yes there is no global database so it would have to be done manually.

Yep I understand that and use that feature a lot but what I am thinking about is being able to show in the remarks that for example that at EGLL when the tail wind component is less than 6 knots than the 27's are default in calm wind. It's usually more of a planning feature but I think it would be a nice addition. Example of how pfpx can be set.

I was thinking of a nice enhancement for the EFB would be the ability to add the calm wind runways to the data so that when you are selecting your dep/arr runway if the wind is under a calm wind threshold it will have a suggestion of which runway to use.