Bruspotter
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Noisy Flaps On Avro.

Tue May 04, 2004 12:41 am

Please confirm or dismiss this theory of mine.............I live right on the flightpath out of BRU about 20km from the airport. Sometimes when I see an Avro climbing out, I swear that I can hear the flaps going up as there is a sudden sound of rushing air. Is it my imagination or are the avro's wings really that loud?
I never think of the future - it comes soon enough.
 
greasespot
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RE: Noisy Flaps On Avro.

Tue May 04, 2004 12:54 am

Your not losing your mind. A/C even makes an announcement inflight about the noise with flaps down on their 146's. I think it is the airflow your hearing and not the flaps moving. At least that is how I understand it when I last flew on a 146.

Greasespot
Sometimes all you can do is look them in the eye and ask " how much did your mom drink when she was pregnant with you?"
 
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Starlionblue
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RE: Noisy Flaps On Avro.

Tue May 04, 2004 12:56 am

Flaps and other appendages make more noise than engines on approach.

And yes, they make some noise, but the plane is still very quiet.
"There are no stupid questions, but there are a lot of inquisitive idiots." - John Ringo
 
meister808
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RE: Noisy Flaps On Avro.

Tue May 04, 2004 2:07 am

Yeah, I just flew on an ARJ85 last month... you are probably hearing the airflow, since it is really loud with the flaps out at all.

-Meister
Twin Cessna 812 Victor, Minneapolis Center, we observe your operation in the immediate vicinity of extreme precipitation
 
J32driver
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RE: Noisy Flaps On Avro.

Tue May 04, 2004 2:34 am

The "flap howl" happens when the flaps are in transit between 0 and 18 degrees going either up or down. Its most prevalent at about 200 knots. And yes, when on the ground you will hear the "flap howl" more than you will hear the engines.
 
av757
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RE: Noisy Flaps On Avro.

Tue May 04, 2004 2:50 am

When MM had 9 ARJ100 flying here in Colombia it was very easy to identify the airplanes overflying the city of BOG during take-off on departure and approaching to land with flaps down due to the particular noise the flap howl made.
 
robsawatsky
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RE: Noisy Flaps On Avro.

Tue May 04, 2004 2:58 am

Yup, got the warning from the Flight Attendant and heard the "howl" on a Air Canada Jazz 146. I'm sure it would be disturbing to some passengers if they weren't told about it in advance.

Me, I'm more concerned about the loading of baggage and cargo containers on larger aircraft when it sounds like they're using a battering ram to get them into place.
 
redngold
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RE: Noisy Flaps On Avro.

Tue May 04, 2004 6:44 am

I heard that "howl" overhead one day as an aircraft passed my apartment building inbound for Rwy 24L at KCLE. Unmistakably an Avro!
Up, up and away!
 
VS346
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RE: Noisy Flaps On Avro.

Tue May 04, 2004 8:02 am

Anyone know where I can find a video or audio file of this sound? Never been on one and unfortunately probably never will be on one, but I'm curious to know the sound.

Thanks,

VS346
Virgin-Atlantic: More experience than our name suggests
 
Jano
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RE: Noisy Flaps On Avro.

Tue May 04, 2004 8:46 am

Two words "Dinosaur roar" Big grin
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hammer
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RE: Noisy Flaps On Avro.

Tue May 04, 2004 10:36 am

I was on a ARJ85 flight last year from MBS to DTW when right after we took off an older couple sitting behind me heard that noise and the guy said to his wife that it is a normal thing to shut 2 engines down to save fuel and that was the noise they heard....I laughed so hard when I heard that but I was never kind enough to tell them different...
 
Continental
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RE: Noisy Flaps On Avro.

Tue May 04, 2004 10:51 am

They are very noisy, as you're right next to them! I noticed this in 2001 LH MUC-ZAG, it freaked me out, I forgot about them!
 
isitsafenow
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RE: Noisy Flaps On Avro.

Tue May 04, 2004 10:56 am

You hear it real good on the inside, too.....r e a l good.
safe
If two people agree on EVERYTHING, then one isn't necessary.
 
NWFltAttendant
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RE: Noisy Flaps On Avro.

Tue May 04, 2004 11:14 am

I know a few FAs at Mesaba (NW Airlink)....nickname for that is the "Jurrasic Park"... i live under the approach for KMSP, hear it all the time
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azjubilee
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RE: Noisy Flaps On Avro.

Wed May 05, 2004 1:55 am

It's all about aerodynamics and is only prevolent with flaps going from 0-18 and 18-0. It's louder if we're faster and of course, that's because of the aerodynamics.

All planes have their werid noises... but this one is definitely unique. And that's why they call it the jurrasic jet.


AZJ
 
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Starlionblue
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RE: Noisy Flaps On Avro.

Wed May 05, 2004 2:15 am

Hammer, that's a classic urban legend. I've heard the same for the 747. FUNNY!

VS346, go to Stockholm and fly from Bromma. Avro Central since Malmö Aviation only flies the BAe-146/Avro RJ. And Stockholm is worth a visit all on it's own. Go from late May to July for the best weather.


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Lovely approach and/or departure too, over the city.

Finally, Malmö Aviation have allowed me to jumpseat after 9/11. The captain said they didn't really see themselves as a hijacking target. In fact, in late 2001, I went up to the cockpit after landing and had a chat. The captain asked: "Why didn't you come up in flight? You could have jumpseated." ARGH!
"There are no stupid questions, but there are a lot of inquisitive idiots." - John Ringo
 
supersonic78
Posts: 146
Joined: Wed May 05, 2004 9:11 am

RE: Noisy Flaps On Avro.

Wed May 05, 2004 10:04 am

Have to agree as well... i flew the Avro dozens of times, and its an extreme noise compared to other planes... and if you are not familiar with planes its rather scary....
 
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Starlionblue
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RE: Noisy Flaps On Avro.

Wed May 05, 2004 3:59 pm

Not to mention the nose down approach angle and the feeling of being thrown forward into the seatbelt  Big grin
"There are no stupid questions, but there are a lot of inquisitive idiots." - John Ringo
 
flyboy1980
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RE: Noisy Flaps On Avro.

Wed May 05, 2004 4:12 pm

I used to be a F/A on the 146-300 for Air NZ, and during training we were never warned of it, and surprisingly, I don't ever remember any pax asking what the noise was. I asked one of the Captains one day, and apparently the official name for the noise is either "flap toot" or "flap hoot"...I can't remember which it was but sounds comical anyway!
 
eg777er
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RE: Noisy Flaps On Avro.

Wed May 05, 2004 9:33 pm

I've heard people describe the noise as like an underground train coming into the station.

But sometimes it can freak you out a bit- especially the first time you hear it!
 
ly334
Posts: 286
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RE: Noisy Flaps On Avro.

Thu May 06, 2004 12:20 am

2 weeks ago I flew an Avro 100 of SNBA from BRU to FCO.
The flaps when they are going in or coming out before landing they really have a strange noise which is completely different than the other a/c's.
It sound as if there is a kind of vacum pressure while the flaps are moving....


ly334
All my toughts are in aviation!!!
 
SNBA319
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RE: Noisy Flaps On Avro.

Thu May 06, 2004 1:30 am

Starlionblue


I can guarantee you you won't hear the same noise in the cockpit Big grin
 
azjubilee
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RE: Noisy Flaps On Avro.

Thu May 06, 2004 1:52 am

What are you talking about? YOu most definitely hear the noise from the flightdeck. Why wouldn't we?



AZJ
 
SNBA319
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RE: Noisy Flaps On Avro.

Thu May 06, 2004 2:32 am

I seriously tried to dicover whether the nois would be as bad from the cockpit, and it just wasn't...honest!
 
aviatortj
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RE: Noisy Flaps On Avro.

Thu May 06, 2004 6:24 am

Is this something that is heard all times the flaps change? I flew one MSP-GFK two weeks ago, the pilots said I would hear it. After takeoff, I felt the flaps retract, and on landing, I felt them go out. I was in front of wings so that could have attributed to it.

__TJ__
 
HlywdCatft
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RE: Noisy Flaps On Avro.

Thu May 06, 2004 6:45 am

I used to hear it all the time when I lived in Livonia Michigan- about 15 miles north of DTW. The ARJs used to turn over my house between 3000- 5000 ft before going in for their final on 22L and 22R.

I used to think the noise was something funky with their engines, like on the A320 which makes a similar noise as it is approaching at about 4000 feet up.

Then I thought it was the little speed cones that open up below the tail that made the noise.

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