John
Will do.... (paternity leave at the mo, so may take me a day or two). The figures used in the example above were just for illustration purposes only and are not actual figures. However, it is a fair representation of what I'm talking about. I swear to God I'm not making this up!
As I said, I presume that when Flugprestanda enter the performance criteria (factor) for each column, the 0 wind speeds are worked out for optimum performance whereas the 10kt tailwind speeds are calculated for minimum required performance.