On Wed, 12 Sep 2007 16:49:36 -0500, "Gig 601XL Builder"
wrDOTgiaconaATsuddenlink.net wrote in
:

Which is cheaper? A $1000 pair of headsets or the multi hundred pounds it
will take to make aircraft quieter in the cockpit.

Now that the jet airliners are quieter than the light singles, isn't
it time for some noise reduction? What significant disadvantage would
there be to a muffler re-design to reduce noise? I realize there
isn't much room available for a larger muffler, and the increased heat
it might radiate would be a factor to consider. But I can recall when
police helos would awaken the neighborhood; now that's a thing of the
past. Surely there is some technologic expertise that could be
applied to aircraft noise reduction, isn't there? Aren't Q-tip props
quieter?