GRUIAD From United States of America, joined Sep 2010, 36 posts, RR: 0 Posted (2 years 1 month 5 days 23 hours ago) and read 2257 times:
I have seen range charts / maps or range circles from a specific airport (e.g. ORD) for Boeing and Airbus for various aircraft types in their inventories. A notation at the bottom of the page has references to assumptions. One of the assumptions is:
Typical Mission rules:
85% annual winds
What does the term "85% annual winds" mean in this case? Anyone that can help would be much appreciated.