737 NG altitude constraints
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737 NG altitude constraints
Setting descent altitude constraints on the legs page is a pretty straightforward process: ie. 250/FL200, 120A, 120B. However, if an arrival incorporates a crossing between two altitudes, say below 16,000/above 12,000, how is that coded so the FMC will accept it manually?
This question is related to the 737NG Smith FMC.
THANKS
This question is related to the 737NG Smith FMC.
THANKS
Input 120A/160B in the legs page.
It's in the VNAV section of your FCOM in the section SPEED/ALTITUDE constraints.
It's in the VNAV section of your FCOM in the section SPEED/ALTITUDE constraints.
Last edited by Capt Chambo; 2nd Mar 2013 at 08:02. Reason: Accuracy
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The reference for the above, in my FCOM, is 11.31.21 "Altitude restrictions that are between two altitudes are displayed with the lower limit first, followed by a suffix letter A, then the upper limit, followed by a suffix letter B (example: 220A240B).
So if that's correct my first post on the subject should have read 250/120A160B.
So if that's correct my first post on the subject should have read 250/120A160B.
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If you had to do it you could conceivably create a new waypoint short of the one with the constraint (ABC-0.1) and give that the other constraint... That'd be a little excessive though I guess.
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Thanks for all responses. I mistakenly thought there was a method to manually code it. The situation arose descending off airway with this type of altitude constraint based on DME alone (MMMX).