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19th Jan 2005, 00:25

#1 (permalink)

grey matter

Join Date: Jan 2005

Location: Australia

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Noise

This may be an old topic I'm touching on, but would anyone be able to point me in the right direction for some info/studies etc on heli noise i.e. sound footprints, different types of a/c etc??
Thanks in advance for your help
gm