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Old 8th April 2022 | 05:59
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subria023
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Joined: Aug 2007
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From: FL160
A320 One Brake Released landing performance

Hi,

I just had a flight with a MEL item of one main wheel brake inop and in-flight landing performance calculation in the QRH has two different delta Vref for flaps 3 and flaps Full landing. For Flaps 3, delta Vref is 6 and for Flaps Full, delta Vref is 0.

What I don’t understand is why Flaps 3 need a higher delta Vref or why is there a need for delta Vref for Flaps 3 at all, given the overall braking efficiency is less. Can anybody shed some light on this?

Thank you,

Subria

Last edited by subria023; 8th April 2022 at 06:11.
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