How cold did it get in Denver? Aluminum and plastic have
different contraction rates with cold. Plastic also gets
brittle with cold. Wind flexes wing, which also flexes
fuselages, erg---cracks.



"Matt Barrow" wrote in message
...
| "Kev" wrote in message
|
ups.com...
| On Feb 17, 11:15 am, Mxsmanic
wrote:
| See
|
|
http://us.cnn.com/2007/WEATHER/02/17....ap/index.html
|
| So what would cause windshields to crack on many
different types of
| aircraft
| at the same time? It wasn't impact or anything like
that. [..]
|
| I don't believe the "wasn't impact" part. I lived in
Denver for a
| while, and when the winds whip up, stones fly around.
|
| That brought to mind the skit in "Monty Python and the
Holy Grail" about
| things that will float in water, one of them being small
rocks.
|