HexOmega wrote on Sep 23^rd, 2012 at 6:22am:

Isn't that called a 9G net? That's what we call them at FDX.

Yes, they also are known as "9G Barrier Nets".

"...9G barrier nets are used in a variety of new-build and passenger-to-freighter conversions.

The purpose of the main deck barrier net is to prevent the cargo penetrating into the aircrew area. The risk of this exists in conditions of extreme deceleration during crash landings, which can pull the loads away from their locking devices, and move them in the direction of the cockpit.

Typically a barrier net is designed to safely accommodate the force exerted by the aircraft's maximum cargo payload under conditions of 9G forward movement, while distending by a pre-determined minimal amount. This involves an intricate design of high-strength multi-ply textile members, configured to distribute the load into the airframe..."


Source: http://services.airpartssupport.com/9gbarrier.html

Pinatubo.