"Martin X. Moleski, SJ" wrote in message
...
| On Tue, 13 Jan 2004 10:22:03 -0600, "Bill Denton"
| wrote:
|
| As far as the siphon effect goes, it definitely exists, even though I may
be
| using incorrect terminology. ...
|
| The first two blowouts of the plywood shield over the
| cockpit windows demonstrated this pretty effectively.
| In the first case, a plastic bag got sucked through
| a relatively small opening. In the second, a whole
| seat got blown out the window and was found
| about 175 yards away from the plane. This was
| at about 6 pounds per square inch of pressure.
| They seemed pretty impressed.
|
| I don't know whether the seat was bolted down
| at the time.

It was just the seat cushion, even though they said it was the seat. The
frame of the seat is bolted down, but cushions are often not attached to
anything at all. They also tend to be light weight.