Cockpit noise levels
Thread Starter
Joined: Oct 2001
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From: U.K
Cockpit noise levels
Is anyone in a position to provide a noise fiqure, in dB for a classic B737 flight deck. Google and PPrune search etc provide lots of generic info on acceptable and non-acceptable levels, but I can not find anything specific to aircraft types.
Trying to do a bit of research prior to buying a headset and any info would be helpful.
Trying to do a bit of research prior to buying a headset and any info would be helpful.
Beacon Outbound
Joined: Mar 2002
Aviation Qualifications: ATPL
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From: "Home is were the answer machine is"
Noise measurement in the cockpits of various aircraft using a hand held Radio Shack Digital-display Sound-level Meter produced interesting results. Boeing 737-300/400 aircraft registered 84-86 dBA in normal cruise flight at FL 270-290 (27000-29000 feet).
I searched google on
"noise level" 737 cockpit
and the above quote was taken from the first hit from this website.
I searched google on
"noise level" 737 cockpit
and the above quote was taken from the first hit from this website.
Joined: Sep 2004
Posts: 17
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From: Darkside of the moon
If you get one of those fancy db meters you'll notice that the noise level goes up exponentially above 300 knots on a 737-800.
The same goes for approaching 82 mach.
This is not a drawback IMO. I like an airplane that talks to you! 757 767 don't really talk to you at those speeds, so an overspeed can really sneak up on you with little warning.
The same goes for approaching 82 mach.
This is not a drawback IMO. I like an airplane that talks to you! 757 767 don't really talk to you at those speeds, so an overspeed can really sneak up on you with little warning.
Joined: Aug 2003
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From: Skagness on the beach
There are a lot of things you might be more concerned about that you can hear that don't have a horn to warn you about like overspeed.
Boeing is working on a fix that I hear puts the flight deck noise around 72 dBa.
Boeing is working on a fix that I hear puts the flight deck noise around 72 dBa.
Last edited by 747FOCAL; 20th September 2004 at 14:11.
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The 757 is very well designed in regard to skin (wind) noise, but to make up for low levels of that kind of noise they invented the aircondition ducts from hell (almost as noisy as the average US home a/c system). There must have been a deaf man designing this apparatus! Very sad.
Joined: Dec 2001
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From: England
Boeing 737-300/400 aircraft registered 84-86 dBA in normal cruise flight
Joined: May 2001
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From: London,England
I like an airplane that talks to you! 757 767 don't really talk to you at those speeds, so an overspeed can really sneak up on you with little warning.
