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Noisy Flaps On Avro.  
User currently offlineBRUspotter From Belgium, joined Jan 2004, 145 posts, RR: 0
Posted (10 years 2 months 3 weeks 19 hours ago) and read 3602 times:

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.
25 replies: All unread, showing first 25:
 
User currently offlineGreasespot From Canada, joined Apr 2004, 3078 posts, RR: 20
Reply 1, posted (10 years 2 months 3 weeks 18 hours ago) and read 3498 times:

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?"
User currently offlineStarlionblue From Greenland, joined Feb 2004, 16991 posts, RR: 67
Reply 2, posted (10 years 2 months 3 weeks 18 hours ago) and read 3482 times:

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."
User currently offlineMeister808 From United States of America, joined Jan 2000, 973 posts, RR: 1
Reply 3, posted (10 years 2 months 3 weeks 17 hours ago) and read 3387 times:

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
User currently offlineJ32driver From United States of America, joined May 2000, 399 posts, RR: 1
Reply 4, posted (10 years 2 months 3 weeks 17 hours ago) and read 3310 times:

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.

User currently offlineAV757 From Colombia, joined Apr 2004, 660 posts, RR: 6
Reply 5, posted (10 years 2 months 3 weeks 16 hours ago) and read 3267 times:
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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.

User currently offlineRobsawatsky From Canada, joined Dec 2003, 597 posts, RR: 0
Reply 6, posted (10 years 2 months 3 weeks 16 hours ago) and read 3234 times:

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.


User currently offlineRedngold From United States of America, joined Mar 2000, 6907 posts, RR: 45
Reply 7, posted (10 years 2 months 3 weeks 13 hours ago) and read 3117 times:

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!
User currently offlineVS346 From United States of America, joined Mar 2004, 339 posts, RR: 1
Reply 8, posted (10 years 2 months 3 weeks 11 hours ago) and read 3068 times:

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
User currently offlineJano From Slovakia, joined Jan 2004, 827 posts, RR: 4
Reply 9, posted (10 years 2 months 3 weeks 10 hours ago) and read 3029 times:

Two words "Dinosaur roar" Big grin


The Widget Air Line :)
User currently offlineHammer From United States of America, joined Jul 2001, 688 posts, RR: 2
Reply 10, posted (10 years 2 months 3 weeks 9 hours ago) and read 2951 times:

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...

User currently onlineContinental From United States of America, joined Jun 2000, 5506 posts, RR: 18
Reply 11, posted (10 years 2 months 3 weeks 8 hours ago) and read 2935 times:

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!

User currently offlineIsitsafenow From United States of America, joined Feb 2004, 4984 posts, RR: 24
Reply 12, posted (10 years 2 months 3 weeks 8 hours ago) and read 2913 times:

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.
User currently offlineNwfltattendant From United States of America, joined Nov 2003, 341 posts, RR: 4
Reply 13, posted (10 years 2 months 3 weeks 8 hours ago) and read 2887 times:

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


Go yakkin !!!!!!
User currently offlineAzjubilee From United States of America, joined Apr 2000, 3888 posts, RR: 28
Reply 14, posted (10 years 2 months 2 weeks 6 days 17 hours ago) and read 2802 times:

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


User currently offlineStarlionblue From Greenland, joined Feb 2004, 16991 posts, RR: 67
Reply 15, posted (10 years 2 months 2 weeks 6 days 17 hours ago) and read 2773 times:

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."
User currently offlineSupersonic78 From Switzerland, joined May 2004, 146 posts, RR: 1
Reply 16, posted (10 years 2 months 2 weeks 6 days 9 hours ago) and read 2659 times:

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....


User currently offlineStarlionblue From Greenland, joined Feb 2004, 16991 posts, RR: 67
Reply 17, posted (10 years 2 months 2 weeks 6 days 3 hours ago) and read 2600 times:

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."
User currently offlineFlyboy1980 From New Zealand, joined Nov 2003, 253 posts, RR: 0
Reply 18, posted (10 years 2 months 2 weeks 6 days 3 hours ago) and read 2582 times:

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!

User currently offlineEg777er From United Kingdom, joined Feb 2000, 1836 posts, RR: 14
Reply 19, posted (10 years 2 months 2 weeks 5 days 22 hours ago) and read 2499 times:

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!


User currently offlineLy334 From Israel, joined Apr 2002, 292 posts, RR: 1
Reply 20, posted (10 years 2 months 2 weeks 5 days 19 hours ago) and read 2445 times:

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!!!
User currently offlineSNBA319 From Netherlands, joined Oct 2003, 298 posts, RR: 0
Reply 21, posted (10 years 2 months 2 weeks 5 days 18 hours ago) and read 2383 times:

Starlionblue


I can guarantee you you won't hear the same noise in the cockpit Big grin


User currently offlineAzjubilee From United States of America, joined Apr 2000, 3888 posts, RR: 28
Reply 22, posted (10 years 2 months 2 weeks 5 days 17 hours ago) and read 2353 times:

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



AZJ


User currently offlineSNBA319 From Netherlands, joined Oct 2003, 298 posts, RR: 0
Reply 23, posted (10 years 2 months 2 weeks 5 days 17 hours ago) and read 2306 times:

I seriously tried to dicover whether the nois would be as bad from the cockpit, and it just wasn't...honest!

User currently offlineAviatorTJ From United States of America, joined Jul 2003, 1838 posts, RR: 7
Reply 24, posted (10 years 2 months 2 weeks 5 days 13 hours ago) and read 2250 times:

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__


User currently offlineHlywdCatft From United States of America, joined Jan 2001, 5321 posts, RR: 7
Reply 25, posted (10 years 2 months 2 weeks 5 days 13 hours ago) and read 2209 times:

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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