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720B
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Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Thu Dec 28, 2017 9:40 pm

The government of Canada has asked Air Canada to retrofit about 100 A320 series passenger planes to eliminate a loud whistling noise under the wings that has led to noise complaints from residents near Toronto, Montreal and Vancouver airports. This is currently not an order, government expects the airline to do so voluntarily.



https://www.theglobeandmail.com/news/po ... sf_globefb
Last edited by 720B on Thu Dec 28, 2017 9:49 pm, edited 1 time in total.
 
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ikolkyo
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Thu Dec 28, 2017 9:43 pm

Sounds similar to what LH did a few years back, https://www.flyertalk.com/articles/luft ... logy.html/

AC will probably be retiring a majority of these aircraft in the coming years so they might only do the A321s.
Last edited by ikolkyo on Thu Dec 28, 2017 10:04 pm, edited 1 time in total.
 
Skywatcher
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Thu Dec 28, 2017 9:54 pm

Doesn't Transport Canada have more important issues to work on (reducing government taxes/fees, making flying more affordable to smaller cities, improving railway hydrocarbon transport safety and so on)? This is just more bureaucratic Ottawa garbage-no substance, just feel good..
Last edited by Skywatcher on Thu Dec 28, 2017 9:56 pm, edited 1 time in total.
 
720B
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Thu Dec 28, 2017 9:55 pm

Guess I will never understand why residential developments (pretty much worldwide) are allowed to flourish so close to airports
 
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william
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Thu Dec 28, 2017 10:01 pm

Isn't it caused by the landing lights being extended?
 
720B
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Thu Dec 28, 2017 10:03 pm

william wrote:
Isn't it caused by the landing lights being extended?


This is well explained in the link provided by ikolkyo (first reply to original post)


"This noise is generated when air flows over an opening on the lower side of the wing, just like blowing air over the mouth of a bottle. The opening draws in and expels air through vents attached to the fuel tank...."
 
williamenglish
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Thu Dec 28, 2017 11:03 pm

Hmmm I'm gonna buy a house close to an airport only to complain it's too noisy.
 
jubguy3
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Thu Dec 28, 2017 11:11 pm

Skywatcher wrote:
Doesn't Transport Canada have more important issues to work on (reducing government taxes/fees, making flying more affordable to smaller cities, improving railway hydrocarbon transport safety and so on)? This is just more bureaucratic Ottawa garbage-no substance, just feel good..


What dumb nonsense. Waah waaah waaah. Believe it or not Transport Canada has the capacity to do more than one thing at once.
 
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VCEflyboy
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Thu Dec 28, 2017 11:15 pm

Yes those a320s have one foot out of the door. But who knows. If they have to spend money on them they might as well transfer them to rouge to start some new NA route.
 
godsbeloved
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Thu Dec 28, 2017 11:22 pm

I have been living near AMS for all of my consious life now. I know exactly what sound theymean. But this whistling sound makes the A32X not evena bit noisier than other comparable planes....when you're neurotic the sound can be quite annoying though.
 
Jalap
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Thu Dec 28, 2017 11:51 pm

Well this is new to me. Of course I know this distinctive sound, typical for A320's. But I always thought it was something about the engines. And I've always been puzzled why every A320 has this sound, regardless of the engine type. Now I feel pretty stupid for not concluding that it wasn't the engine :banghead:

Anyway, I wonder why this is a problem in any way. It is a typical sound, but it isn't louder than any other aircraft. Perhaps some people are more vulnerable to certain frequencies of noise and so are irritated by this particular sound. Or perhaps people who don't like an aircrafts noise (I hear they do exist) find it easier to get used to a smaller variation of noises overflying. I can imagine that if every aircraft type had its own very distinctive noise, it would be harder to get used to such a kakaphony...
 
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767333ER
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Fri Dec 29, 2017 2:25 am

I feel I’m bothered by any noise, I’m more bothered by the roar of excessively loud 737’s with their undersized fans flying over myself, but I’m not bothered by any of these noises.
Been on: 732 733 734 73G 738 752 763 A319 A320 A321 CRJ CR7 CRA/CR9 E145 E175 E190 F28 MD-82 MD-83 C172R C172S P2006T PA-28-180

2 ears for spatial hearing, 2 eyes for depth perception, 2 ears for balance... How did Boeing think 1 sensor was good enough?!
 
jackieman27
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Fri Dec 29, 2017 2:35 am

Any videos of this sound for those of us not familiar with it?
 
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ikolkyo
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Fri Dec 29, 2017 2:37 am

767333ER wrote:
I feel I’m bothered by any noise, I’m more bothered by the roar of excessively loud 737’s with their undersized fans flying over myself, but I’m not bothered by any of these noises.


Seems like you’re bothered about everything on the 737, we get it.
 
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ikolkyo
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Fri Dec 29, 2017 2:39 am

Like I said above, AC may only do it on the Rouge fleet and the A321s. Newer A320s are already fitted with this vortex generator.
 
1900Driver
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Fri Dec 29, 2017 2:51 am

ikolkyo wrote:
Like I said above, AC may only do it on the Rouge fleet and the A321s. Newer A320s are already fitted with this vortex generator.


RV 321s are equipped with vortex generators below fuel vents to prevent the whistling sound. Balance of mainline & RV fleet may have to be modified.
 
helhem
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Fri Dec 29, 2017 3:29 am

Does Bombardier anything quieter by any chance. Probably not but that was the first thing that I thought about.
 
santi319
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Fri Dec 29, 2017 3:29 am

And soon all 737s well good luck with that, they are waaaay noiser than Airbus..
 
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iseeyyc
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Fri Dec 29, 2017 3:30 am

An odd request considering there are still cargo 727's and combi/pax 732's howling into and rocketing out of many Canadian airports.
 
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DocLightning
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Fri Dec 29, 2017 3:39 am

Skywatcher wrote:
Doesn't Transport Canada have more important issues to work on (reducing government taxes/fees, making flying more affordable to smaller cities, improving railway hydrocarbon transport safety and so on)? This is just more bureaucratic Ottawa garbage-no substance, just feel good..


Reducing noise pollution is an important part of regulatory bodies.
-Doc Lightning-

"The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars."
-Carl Sagan
 
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caoimhin
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Fri Dec 29, 2017 3:41 am

jackieman27 wrote:
Any videos of this sound for those of us not familiar with it?


You’ve almost certainly heard it. It’s that UFO kind of noise that sounds like a two-tone whistle.

Edit: https://youtu.be/4dj8yHcslDA

Found one on YouTube.
 
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caoimhin
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Re: Canadian goverment asks Air Canada to reduce noise on A320 passenger jets

Fri Dec 29, 2017 3:53 am

santi319 wrote:
And soon all 737s well good luck with that, they are waaaay noiser than Airbus..


Yes, but this is a different quality of sound. The A320 whine is clearly audible from inside a home when the engine noise is not. It cuts through the air over large distances in a unique way when the roar of the engine is only faint.

The sound isn’t bothersome to me (in fact, I enjoy it), but I can understand how it could be an annoyance to someone more sensitive.

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