GLSNightPilot
Thanks for that very logical reply. I can now see the historic reason for the differences.
Heedm
Are you saying the noise attenuation is different in a Heli head set to a FW headset? Do they knock out different ranges of the aural spectrum?
ASPINSWING
What are collective rolleyes?and why would a cord affect them?
To everyone-
All very interesting and thanks for the replies.