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Old 11th Aug 2022, 09:37
  #29 (permalink)  
FlightDetent

Only half a speed-brake
 
Join Date: Apr 2003
Location: Commuting not home
Age: 46
Posts: 4,321
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Hope the scolding is equally aimed at the BA liveried crew from the video posted upthread.

The rest is agreed, apart from the showboating part. My guess is insufficient competence where high competence is required.

A321 standard landing geometry (following a 50' RDH calibrated 3 deg GP) will provide 31' landing gear clearance when crossing the threshold.

Landing distance and braking performance rules only allow dispatching for a runway where 67% margin is available over the numbers for manual maximum braking effort from a standard landing profile.

Safety on limiting runways is achieved by learning the acceptable touchdown spot (which is by far not 1000 m or 1/3 runway) and going around if the landing gets deep.
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Safety levels assured or markedly improved by using any specific short landing technique are wholly unacceptable.

If you wish to land nearer the threshold anyways, pick a closer aiming point and do some magic to shorten the flare phase from a standard approach angle. Going more shallow is geometrical and energetic nonsense even if it makes the pilot feel good.

Those are facts. Human factors go on top and always shift the picture. To avoid straying too far the underlying theoretical knowledge needs to be accurate.


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Last edited by FlightDetent; 11th Aug 2022 at 09:52.
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