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Old 23rd Jun 2013, 12:39
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Luckyguy
 
Join Date: Sep 1999
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auto retraction.....

Vilas....
the slats do not auto retract at 210 kts, the flaps do !
With an S speed higher than 210kts, the flap lever should be moved to the 0 position at S speed assuming the aircraft is accelerating. This means that the flaps will already be travelling, followed by the slats commanded by the flap lever position.
The FCTM makes no mention of SPD select to control the IAS at or below FLAP limit speed of 230Kts. It is also going to be pretty close to GD, however, there is also nothing to say that you can't fly below GD speed withouit selecting flap 1. Airbus just don't recommend it !
In turbulent conditions, it may be impossible to control the speed at or below 230 Kts before the slats have completely retracted. It is transient in most cases and short term.
What would the check Captain prefer.... flying below green dot clean or the slats retracting the final few degrees with a decreasing aerodynamic load passing 230Kts.

Last edited by Luckyguy; 23rd Jun 2013 at 12:41.
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