PPRuNe Forums - View Single Post - Helicopter noise in films

29th Jun 2017, 06:10

#15 (permalink)

tartare

Join Date: Oct 2007

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Now that sounds like a helicopter.
Interesting - three noises there.
The low frequency boom at first I assume is a shockwave ahead of the main rotor?
Then some main rotor tip noise as it flies past - and finally the noise of the fenestron?

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