smartt1982 From United Kingdom, joined Nov 2007, 107 posts, RR: 0 Posted (3 months 2 weeks 1 day 4 hours ago) and read 1250 times:
Hello,
Just regarding the forecast winds in the descent planning page, does the FMC take the reference level from your landing altitude or MSL. What if I was to put a wind at 000, what would the FMC take this as? The same would go for the levels I plan to have anti ice on and off at?
wilco737 From Greenland, joined Jun 2004, 8015 posts, RR: 83 Reply 1, posted (3 months 2 weeks 1 day 3 hours ago) and read 1229 times:
AIRLINERS.NET CREW FORUM MODERATOR
Quoting smartt1982 (Thread starter): What if I was to put a wind at 000, what would the FMC take this as?
Doesn't the FMC see it as either FL or altitude depending on transition altitude? I haven't flown the 737 in 5 years, so cannot remember 100%, but on the 744 I see on the descent forecast: "FL300, FL200, FL100, 5000"
So my guess it is MSL, and not above landing altitude.
AAR90 From United States of America, joined Jan 2000, 3342 posts, RR: 51 Reply 2, posted (3 months 2 weeks 1 day 2 hours ago) and read 1203 times:
Quoting smartt1982 (Thread starter): Just regarding the forecast winds in the descent planning page, does the FMC take the reference level from your landing altitude or MSL.
MSL.
Quoting smartt1982 (Thread starter): What if I was to put a wind at 000, what would the FMC take this as?
Never tried that, but I don't think the FMC will take that altitude. The FMC doesn't need wind at sea level.
Quoting smartt1982 (Thread starter): The same would go for the levels I plan to have anti ice on and off at?
MSL.
*NO CARRIER* -- A Naval Aviator's worst nightmare!
Sponsor Message: 
From United Kingdom, joined Nov 2007, 107 posts, 
From Greenland, joined Jun 2004, 8015 posts, 
From United States of America, joined Jan 2000, 3342 posts, 
Sponsor Message: 
Printer friendly format
