A320 LDR (over wt landing proc)
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A320 LDR (over wt landing proc)
Hi all
Can someone point me in the right direction or give me a definitive answer on the additional distance required if OVR WT landing proc is applied when doing the calculations from the QRH?
I have been given a rough answer but I am struggling to find any reference in the manuals.
Thanks in advance
Can someone point me in the right direction or give me a definitive answer on the additional distance required if OVR WT landing proc is applied when doing the calculations from the QRH?
I have been given a rough answer but I am struggling to find any reference in the manuals.
Thanks in advance
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I remember reading and/or being told that additional distance in case of overweight landing is because you are supposed to touch down with a lower vertical speed than in normal case and thus the flare takes longer.
How exactly this is calculated for different failure cases - I doubt there is any answer oudside of Airbus performance engineering dept. I guess the extra distance will vary with approach speed for a given case
How exactly this is calculated for different failure cases - I doubt there is any answer oudside of Airbus performance engineering dept. I guess the extra distance will vary with approach speed for a given case
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Good answers guys
This is what I suspected but just wanted to confirm. It would be good if there was a reference to this somewhere but I can't seem to find but it basically makes perfect sense.
Thanks for the replies.
This is what I suspected but just wanted to confirm. It would be good if there was a reference to this somewhere but I can't seem to find but it basically makes perfect sense.
Thanks for the replies.
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from an airbus WISE document
This “Overweight Ldg proc” correction reflects the application of the OVERWEIGHT LANDING procedure, such as:
• Longer airborne phase (modelled with 7 seconds and a touchdown speed of 98% of the approach speed on A330/A340 aircraft; 9 seconds and a touchdown speed of 97% of the approach speed on A320 family aircraft),
• Braking application is delayed until Nose Landing Gear touchdown (ground spoiler deployment still set at or near main gear touchdown),
• An adapted derotation to account for the smooth touchdown recommended in the procedure.
• Longer airborne phase (modelled with 7 seconds and a touchdown speed of 98% of the approach speed on A330/A340 aircraft; 9 seconds and a touchdown speed of 97% of the approach speed on A320 family aircraft),
• Braking application is delayed until Nose Landing Gear touchdown (ground spoiler deployment still set at or near main gear touchdown),
• An adapted derotation to account for the smooth touchdown recommended in the procedure.