G-Spot, thanks for that info. Do you know how they determined that? Real "testflying", like parallel flights?
Reg.390...we thought about that as well, using our flight planning prog it looks like the differences at least in fuel used aren`t real big.(100-200lbs when climbing to 430 aften an hour) Having said that, for the flight in question I could NOT have used 390 (actually 381 for the metric system over there). We landed with 80 lbs over minimum diversion, 60 lbs more than predicted...
@theaviator2005: sorry for the thread drift...