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Noisy Flaps  
User currently offlineRootsAir From Costa Rica, joined Feb 2005, 4186 posts, RR: 41
Posted (9 years 5 months 2 weeks 3 days 5 hours ago) and read 1996 times:

Last year I took SN brussels from GVA to Marseille on an AvroJet and I was surprised at how noisy the flaps were . When they were moving before landing in marseille, I sleeping and freaked out with the noise. Is it me or are ARJ's flaps that noisy


A man without the knowledge of his past history,culture and origins is like a tree without roots
14 replies: All unread, jump to last
 
User currently offlinePilotaydin From Turkey, joined Sep 2004, 2539 posts, RR: 51
Reply 1, posted (9 years 5 months 2 weeks 3 days 5 hours ago) and read 1977 times:

yeah the Avrojets have this aerodynamic flow for flaps 18, that cause this issue, im not sure if it's flaps 18 or 11 now....rats...well somewhere in the acute angle range....

it freaks out first time flyers, i know this very well from TK Rj70 and 100s



The only time there is too much fuel onboard, is when you're on fire!
User currently offlineArmitageShanks From UK - England, joined Dec 2003, 3607 posts, RR: 15
Reply 2, posted (9 years 5 months 2 weeks 3 days 4 hours ago) and read 1926 times:

Some spots on the 767 can be noisy on landing when the flaps are extended.

User currently offlineSlamClick From United States of America, joined Nov 2003, 10062 posts, RR: 68
Reply 3, posted (9 years 5 months 2 weeks 3 days 3 hours ago) and read 1914 times:

The BAe or Avro does have that very noisy band. It actually occurs only (or loudest) when in transit. IIRC it was around 12-16 degrees on their way to or from the first setting which was 18.

It was programmed into our simulator and sitting in the briefing room near the end of the session before you, you could actually hear it. It was then time to hit the bathroom before getting into the box.

Once evening my wife and I were standing in our driveway when we lived near an airport. We could hear a jet idling by overhead but when we heard that sound my wife laughed out loud and said: "I don't even have to look up!" I was flying the "quadrophonic leaf blower" at that time and she knew the sound.



Happiness is not seeing another trite Ste. Maarten photo all week long.
User currently offline2H4 From United States of America, joined Oct 2004, 8955 posts, RR: 60
Reply 4, posted (9 years 5 months 2 weeks 2 days 20 hours ago) and read 1792 times:
AIRLINERS.NET CREW
DATABASE EDITOR

I always liked the name "Quadrapuff" for the Avro/146.


2H4



Intentionally Left Blank
User currently offlineSlamClick From United States of America, joined Nov 2003, 10062 posts, RR: 68
Reply 5, posted (9 years 5 months 2 weeks 2 days 19 hours ago) and read 1781 times:

Or, because of the howling flaps - The Hound of Hatfield.

Swineliner.




Happiness is not seeing another trite Ste. Maarten photo all week long.
User currently offlineAJ From Australia, joined Nov 1999, 2386 posts, RR: 24
Reply 6, posted (9 years 5 months 2 weeks 2 days 15 hours ago) and read 1743 times:

Ansett and Southern Flight Attendants used to give a PA regarding the noise made while the flaps were in transit so passengers would not get alarmed!

On the 767 the howling noise sometimes made during flap movement was traced to loose or missing seals in the inboard leading edge slat.


User currently offlineTroubleshooter From Germany, joined Feb 2005, 423 posts, RR: 5
Reply 7, posted (9 years 5 months 2 weeks 2 days 13 hours ago) and read 1726 times:

I was once told that this noise on the "vierzylinder" (146/RJ) is produced by the slot between the flap panel and the fuselage. They introduced a shutter for the # 1 flap track on later 146 versions and on all RJs. But this did not solve the problem. I love that sound. That makes the ship more "personal".


This job sucks!!! I love this job!!!
User currently offlineHAWK21M From India, joined Jan 2001, 31667 posts, RR: 56
Reply 8, posted (9 years 5 months 2 weeks 2 days 12 hours ago) and read 1711 times:

Any pics of this Flap panel near Fuselage.
regds
MEL



Think of the brighter side!
User currently offlineTWAMD-80 From United States of America, joined Oct 2001, 1006 posts, RR: 4
Reply 9, posted (9 years 5 months 2 weeks 1 day 20 hours ago) and read 1605 times:

When I flew on the 146 I noticed that it had particularly noisy flaps. Another jet that I found to have noisy flaps is the 737-300,400,500 series. When the flaps extend, you can hear the motor.

TW



Two A-4's, left ten o'clock level continue left turn!
User currently offlineBri2k1 From United States of America, joined Dec 2004, 988 posts, RR: 4
Reply 10, posted (9 years 5 months 2 weeks 1 day 20 hours ago) and read 1607 times:

I just took UA from IAH to DEN today and I agree! We were on a 737-500. During the landing roll, with the ground spoilers still deployed, the flaps began to retract. From seat 17A, I was able to see the long green-colored bar beneath the spoilers rotate (noisily) to retract the flaps. It was very loud without the spoliers stowed. Howver, I also flew CO 737-800 and 900 craft over the weekend, and I didn't find them to be any less noisy.


Position and hold
User currently offlineAirgypsy From United States of America, joined Nov 1999, 130 posts, RR: 2
Reply 11, posted (9 years 5 months 2 weeks 1 day 20 hours ago) and read 1593 times:

The Howl of Hatfield is caused by the same thing that makes a blade of grass hum between your fingers.
The spoilers have a seal strip that is pressed down tight against the flap when it is retracted and then opens when the flap extends 0-18 degrees. A very large reed instrument. The seal strips are replaced for cracking because of this dynamic. Been there, done that on the -146.


User currently offlineAirplay From , joined Dec 1969, posts, RR:
Reply 12, posted (9 years 5 months 2 weeks 1 day 19 hours ago) and read 1589 times:

The first time I heard the howl on a BAE-146, the flight attendant warned us on the pre-landing briefing. I notice they don't do it anymore.

It was kind of an odd sound.

Recently, on a flight on an IAI Westwind I really noticed a great deal of noise when land flap was selected. There is a really loud groan followed by lots of air noise.


User currently offlineCaptoveur From , joined Dec 1969, posts, RR:
Reply 13, posted (9 years 5 months 2 weeks 1 day 19 hours ago) and read 1584 times:

When the flaps extend, you can hear the motor.

I like that sound, it means they are working.


User currently offlineHAWK21M From India, joined Jan 2001, 31667 posts, RR: 56
Reply 14, posted (9 years 5 months 2 weeks 1 day 17 hours ago) and read 1574 times:

Another jet that I found to have noisy flaps is the 737-300,400,500 series. When the flaps extend, you can hear the motor

Thats the Flap Drive unit operating the Torque tube located below in the MWW.

regds
MEL



Think of the brighter side!
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