Spitoon,
Please don't ask me to find its location now, but a long time ago I happened to stumble upon a research paper documenting the most common causes of death resulting from aircraft accidents.
I seem to remember the real killer was blunt force trauma to the head and abdomen. Crush injuries were somewhere on there, but more common was blood loss/shock through dismemberment.
Don't seem to recall seeing whiplash on there however...