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Thread: Emirates 380 landing from tail camera
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Old 14th Mar 2010, 23:31
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Back Seat Driver
 
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DrMatt
I still don't think we can conclude that the others landed before the threshold or dangerously close to it.
Ref the 2nd A380 video.
Allowing for 'lowish' landing weight of 340 tonnes Vref+5 = 134 knots (226ft/sec.)
4 -5 seconds for spoiler deployment.
Autobrake deceleration rates of 'LO' @ 4knots/sec or 'MED' @ 5knots/sec. Therefore average speed in that 4 second period is 125 knots (211ft/sec) (any HW would decrease the G/S)
The video shows the spoilers extended before the aircraft reaches the 1000ft touchdown zone marking.
You do the maths.
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