Reply #2: I hardly think [View All]

[salvorhardin]

Terrorists intent on killing a plane load of people by flying into a very tall building full of people are going to reduce speed to 313 knots upon descending below 8,000 feet so they can minimize the risk of killing a few birds. Did you even read what you posted?

From Sea Level to 8,000ft restrict airspeed to 313 kts* for Bird Impact Protection. Above 8,000ft, observe Vmo / Mmo pointer and overspeed warning.

And why go to some site designed to promote conspiracy theories when you can go directly to the manufacturer's site.
http://www.boeing.com/assocproducts/aircompat/757.htm