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VNAV, Constraints, and V/S mode


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The A300 is fast approaching perfection, but there are still issues.

Profile VNAV seems to not manage descent altitude constraints (speeds seem OK).

The PAUL2K into MMUN has one between, one at or above, and two at  constraints, and whilst according to the “banana” it would have made the 3000’ constraint before the RNAV (which it flew wonderfully), it was over ten thousand feet too high for the first few even though the descent profile said it was spot on profile.

To manually catch up with constraints, I used V/S mode plus spoilers, but then V/S mode switches itself off periodically.

The PERF takeoff trim is always zero, and clicking trim automatically sets this to zero.

As always, thanks.



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