This video is of the UPS aircraft going missed at Ontario, CA a few
years ago. The Santa Ana winds were positively howling that day; I
seem to recall seeing this on the news, and the winds were up to 40
knots or more. You can see the San Bernadino Mountains in the
background, and the snowcapped one near the end of the clip appears to
be Mt. Baldy.
The runways at Ontario run east-west, and this appears to be an
approach to the east, which puts the mountains (to the north) on the
left side. This is also where the Santa Anas come from (north to
northeast).
It appears that the aircraft got hit with a good gust just before
touchdown--possibly a loss of airspeed windshear. That would be
consistent with the nose drop you see just before the go around.
It is also probable that the pilot found that he had insufficient
rudder to combat the crosswind and was losing ground towards the
downwind side of the runway. This is suggested by the substantial yaw
to the left as the go around was initiated. Either the aircraft
weathervaned into a gust, or the pilot did that to get back over the
runway.
Large turbofans such as those on this aircraft usually require anywhere
from thee to six seconds to spool up to full thrust, which is one
reason that in this class of aircraft you do not want to do power off
approaches. They put out a whole lot of drag (gear and flaps) and then
approach with a significant amount of power on. This substantially
shortens the time it takes to get up to full thrust if something goes
wrong... like seen here.
The early jet engines were much higher rpm and had longer spool up
times. Not a few early jet pilots were killed transitioning to jets
because they would approach with little or no power as they used to do
in their piston fighters, only to find in a go around sitation they had
waited too long to get the power coming up. They crashed, while
waiting for the engine to catch up with what they had asked it to do.
Gene
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