Re: "crackle"

Date:         05 Nov 99 00:04:09 
From:         "samsmart" <sam@poti.com>
Organization: MindSpring Enterprises
References:   1 2 3 4 5
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Bob Mann wrote in message ...
>Perhaps this has been stated before; if not, the Space Shuttle boosters
>and main engines produce the loudest, most distinct crackle, due to (as
>others suggest) transonic/supersonic exhaust flow mixing.

Similar to that of a 'top-fuel' drag racer. The nitro-methane/alcohol mix
they use is highly flammable.