Using 'Conservative' Performance Numbers
Was with a pilot the other day that wanted to do the performance numbers using a 5kt tailwaind even though winds reported were around 15kt headwind. Not the first time I've seen this but at the end we had numbers that were around 10-15kts shower than they should have been if we had used the real wind.
Just wondering if anyone could share their thoughts about the advantages or disadvantages of this 'conservatism'.