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Re: [OM] OT: Noise levels in light aircraft, was More eruptions

Subject: Re: [OM] OT: Noise levels in light aircraft, was More eruptions
From: Chris Barker <ftog@xxxxxxxxxxxxxx>
Date: Sun, 16 May 2010 19:12:42 +0100
Yes, the "mass budget" is a big problem.  The Grob 115e weighs only 990kg, so I 
am over a tenth of the weight of a full aircraft (with my cushion, parachute 
and other stuff for flying).  When I get out to send a student solo, the 
aircraft becomes suddenly a performance machine, almost bounding off the runway.

Chris

On 16 May 2010, at 17:37, Jim Nichols wrote:

> I have never seen an effective muffler used on AC built in the US. 
> Propeller tip noise is one of the big problems.  Most noise reduction comes 
> from using thicker windshields and side windows, and firewall and side panel 
> sound insulation, but all of these things add weight, which is not popular 
> to a company selling carrying capacity.

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