I used a Telex ANR500 in the 747 and found it very good at killing noise, yet still able to talk cross-cockpit easily. It even has a on-headset volume control for those intercom boxes that are near impossible to modulate properly. The ear pieces fit on top of the ear rather than all around it like some other noise attenuating headsets. It's also not as expensive as the Sensennheiser's (sp?). Very lightweight and fits on top of your Jepps in your kit bag. It's TSO'd too.
[ 08 August 2001: Message edited by: Roadtrip ]