Page 2 on this thread. 22nd June.
"Now I'm no Physics "Major", but as impressive as some of the effects look, some of them do not look quite right to me. A plane diving at a collosal speed regardless of its weight is going to build up a lot of mass and energy, right? It just seems sometimes that they just crumple like the paper aeroplanes I used to throw at my maths teacher as a kid, when they were'nt looking Maybe I am wrong about this, but I would expect for example them to be impaled into the ground in this scenario, if coming down at speed at a 90 degree angle. Like I say, maybe due to their relatively light weight this would be correct, someone please correct me if this is so."
Hmph.
