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Old 18th Apr 2010, 00:03
  #734 (permalink)  
PaleBlueDot
 
Join Date: Oct 2005
Location: Europe
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Hi,
I readed some have ideas about cut trees ...
Mething it's useless ...
The trees are where they must be ... the aircraft was not where he must be.
The trees have no responsability with this accident. Blame anything or anyone .. but not the trees.
Of course, trees were not primary cause, but they were part of the chain of events necessary for the tragedy. We must always expect unusual and emergency situations. If the airport does not have modern navigational aids, and it does have very featureless and very gradually rising, almost invisible 60m deep valley just before the runaway, then it is reasonable to expect some trouble in non-standard situations. I was suggesting that, only in places like this, some additional measures be taken. For example clearing approach paths more than is usually required. Is there somebody who knows requirements or recommendations?

Because, look at the situation we have here. This tree, and its neighbors, is probably 20m high.

Tree with the cut near the main road

By the look at the satellite image, it's not much different 30m to the left, at the real axis of the runaway.

Road is at the runaway level. At the 860m distance from touchdown and with 3% approach, plane should be 45m above the road. With 20m trees, plane wheels are ideally some 20m above the tops of the trees that flank the road. Isn't that a bit to close for the runaway without modern equipment, and invisible hole in front of it?
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