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Old 30th Jul 2014, 16:13
  #1043 (permalink)  
RetiredF4
 
Join Date: Jun 2009
Location: Germany
Age: 71
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rageye

Article published today by former airline pilot Peter Haisenko
http://www.anderweltonline.com/wisse...alaysian-mh17/
The article is BS.
It is true, where the material is two layered in the enforced cockpit section the inner layer looks perforated from outside to inside and the outer layer is bent to the outside, as if a bullet has been shot from the inside.
The explanation is simple to understand.

When the hot fragments of the warhead (they are very hot, glowing at the beginning) hit a single layer of metal, they just penetrate, they nearly melt through. All the expansion of gases the fragment causes goes to the inside.

If the fragment meets a doubled layer metal construction the first sheet again is perforated, but at the same time a lot of pressure is building up between those two sheets of metal due to expanding gases and melting of parts of the first metal, thus bending the edges of the inlet hole to the outside. Then the second metal sheet is penetrated. This principle is used to protect armored vehicles by using multiple sheets of metal layers instead a thick one.

And this pilot in the article has no idea of how an air-to air gun is used and where a pilot intending to shoot down an airliner would aim at. A head on path with a closure rate of 1500 km/h to hit the cockpit area from the front quarter (like the damage would suggest) would be the last maneuver some pilot would try.

He would be better to comment on thing he has a basic understandig.

Last edited by RetiredF4; 30th Jul 2014 at 18:40.
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