Here's your answer:
From PER-DES-EMG
A descent from FL370 to 1500ft for:
A320
@65t = 6.2 minutes
A321:
@55:5.8min
@75t: 7.3min
(interpolate @65t: 6.55min)
A319:
@65t: 7.3min
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Times from FL370 to FL100 using the same charts at 65t (interpolating for A321)
A321: 4.5minutes
A320: 4.2 minutes
A319: 5.35minutes
In all cases above this is with speedbrakes extended flown at Mmo/Vmo
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Max Spoiler Deflection, Clean config, Manual Flight:
A321: 25 degrees
A320: 40 degrees (spoilers 3 & 4)
------20 degrees (spoiler 2)
A319: 25 degrees (spoilers 3 & 4)
------17.5 degrees (spoiler2)
Last edited by Airmann; 5th November 2012 at 15:39.