Comment: Why practice landings on a runway 3 X longer than needed?

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SteveMT's picture

Why practice landings on a runway 3 X longer than needed?

With 18,000 hours flying time, wouldn't this pilot feel confident enough to be able to land his 777 on a 4,200 meter long runway without any practice? What's the point? Just asking.
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According to Boeing’s specifications for 777 aircraft (pdf, pg. 16), the plane would need between approximately 1,160 to 1,600 meters (3,800 and 5,200 feet) to land at sea level, depending on its weight at the time:

http://qz.com/187891/how-much-room-would-the-missing-malaysi...
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http://worldaerodata.com/wad.cgi?runway=IO2100431
http://worldaerodata.com/wad.cgi?id=IO21004
DIEGO GARCIA NSF
Runway 13/31
12003 x 200 feet
3659 x 61 meters

Landing Distance 12003 feet
3659 meters
Takeoff Distance 12953 feet
3948 meters
Overrun Length 950 feet
290 meters
Overrun Surface ASPHALT

Runway 31
Elevation 9.0 feet
3 meters
Slope 0.0°
Landing Distance 12003 feet
3659 meters
Takeoff Distance 12953 feet
3948 meters
Overrun Length 950 feet
290 meters
Overrun Surface ASPHALT
http://worldaerodata.com/wad.cgi?runway=IO2100431
Source: DAFIF
http://worldaerodata.com/wad.cgi?id=IO21004