Gigneil From United States of America, joined Nov 2002, 16308 posts, RR: 87 Posted (10 years 12 months 2 days 22 hours ago) and read 3472 times:
I was just talking to a friend that took the DL BizElite 767-300ER service from JFK to SFO yesterday.
He said the weather was exceedingly bad, and that they cruised around FL430 a good part of the trip.
I was under the impression that the 763's max alt was only FL410.
This prompted a discussion of altimeters. We visited the possibility that the turbulent air caused a misread with a barometric altimeter. But then he pointed out that a lot of planes judge alt via GPS now.
Rick767 From United Kingdom, joined Jan 2000, 2662 posts, RR: 52 Reply 2, posted (10 years 12 months 2 days 4 hours ago) and read 3290 times:
Like AJ said, we can go right up to FL431 (operationally FL430) but the weight must be very low to achieve this. Even at the very end of our long flights with most fuel burnt we can only sometimes make FL410.
I used to love the smell of Jet-A in the morning...