Sponsor Message:
Civil Aviation Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
What Is Wrong In This Picture?  
User currently offlineHAMAD From United Arab Emirates, joined Apr 2000, 1161 posts, RR: 7
Posted (5 years 9 months 1 week 6 days 15 hours ago) and read 19057 times:

there is a smoke coming from the left main gear, but wasn't sure what could caused it. any ideas?


View Large View Medium
Click here for bigger photo!

Photo © Gilbert Hechema




PHX - i miss spotting
25 replies: All unread, showing first 25:
 
User currently offlineDurangoMac From United States of America, joined Dec 2006, 743 posts, RR: 0
Reply 1, posted (5 years 9 months 1 week 6 days 15 hours ago) and read 19016 times:

I've heard from others that it's the dust from the brakes and the brakes being worked a little to hard before take off. I do admit it seem a little excessive but I've seen other photos with the same thing happening.

User currently offlineSkytony From United States of America, joined Sep 2005, 145 posts, RR: 0
Reply 2, posted (5 years 9 months 1 week 6 days 15 hours ago) and read 19004 times:

I am going to guess brake dust from the landing gear.


Lower your expectations! You will always be pleasantly surprised!
User currently offlineAirbuske From United States of America, joined Jun 2007, 466 posts, RR: 0
Reply 3, posted (5 years 9 months 1 week 6 days 15 hours ago) and read 18978 times:

Yes, I also think it has something to do with the brakes. Just after I replaced the front brake pads and calipers on my car, I had stopped at a red light and noticed smoke coming out of my tires. My friend assured me that that was normal because new brakes have to "wear in".

Hopefully someone can give you a more precise answer.I'm curious true


User currently offlineHAMAD From United Arab Emirates, joined Apr 2000, 1161 posts, RR: 7
Reply 4, posted (5 years 9 months 1 week 6 days 15 hours ago) and read 18970 times:



Quoting Airbuske (Reply 3):
I had stopped at a red light and noticed smoke coming out of my tires. My friend assured me that that was normal because new brakes have to "wear in".

brake dust! wow, i guess thats why my wheel rims have been always getting black after i replaced my brake pads
thanks for the info guys



PHX - i miss spotting
User currently onlineBMI727 From United States of America, joined Feb 2009, 15830 posts, RR: 27
Reply 5, posted (5 years 9 months 1 week 6 days 15 hours ago) and read 18936 times:



Quoting Airbuske (Reply 3):
Yes, I also think it has something to do with the brakes. Just after I replaced the front brake pads and calipers on my car, I had stopped at a red light and noticed smoke coming out of my tires. My friend assured me that that was normal because new brakes have to "wear in".

It's the same stuff that turns the rims on your car black. Sometimes you'll see a car with disc brakes in the front and drums in the rear which will have front rims several shades darker than the rears due to brake dust.



Why do Aerospace Engineering students have to turn things in on time?
User currently offlineJetMech From Australia, joined Mar 2006, 2699 posts, RR: 53
Reply 6, posted (5 years 9 months 1 week 6 days 14 hours ago) and read 18846 times:



Quoting HAMAD (Thread starter):

A lot of aircraft automatically apply brakes to stop the wheels from spinning just before retraction. One reason for this is to minimise forces on the landing gear structure as it retracts due to gyroscopic precession. I suspect another reason is to minimise the chances of damage occurring to wheel well components.

Regards, JetMech



JetMech split the back of his pants. He can feel the wind in his hair.
User currently offlineAcNDTTech From United States of America, joined Jul 2008, 338 posts, RR: 0
Reply 7, posted (5 years 9 months 1 week 6 days 14 hours ago) and read 18840 times:

I'd have to agree....brake dust.

User currently offlineDocLightning From United States of America, joined Nov 2005, 20334 posts, RR: 59
Reply 8, posted (5 years 9 months 1 week 6 days 14 hours ago) and read 18783 times:



Quoting JetMech (Reply 6):

A lot of aircraft automatically apply brakes to stop the wheels from spinning just before retraction. One reason for this is to minimise forces on the landing gear structure as it retracts due to gyroscopic precession. I suspect another reason is to minimise the chances of damage occurring to wheel well components.

The result is a puff of smoke as dust from the wheels comes off.


User currently offlineMascmo From United States of America, joined Mar 2008, 93 posts, RR: 0
Reply 9, posted (5 years 9 months 1 week 6 days 13 hours ago) and read 18616 times:

Now don't you just wish your car could shed brake dust like this?!?!  Big grin

User currently offlineHAMAD From United Arab Emirates, joined Apr 2000, 1161 posts, RR: 7
Reply 10, posted (5 years 9 months 1 week 6 days 13 hours ago) and read 18584 times:



Quoting Mascmo (Reply 9):
Now don't you just wish your car could shed brake dust like this?!?!

NOT  Silly

given the size differences, would airplane break pads be manufactured with the same material car pads are?



PHX - i miss spotting
User currently offlineJetMech From Australia, joined Mar 2006, 2699 posts, RR: 53
Reply 11, posted (5 years 9 months 1 week 6 days 12 hours ago) and read 18501 times:



Quoting HAMAD (Reply 10):
would airplane break pads be manufactured with the same material car pads are?

Most brakes fitted to modern commercial aircraft have carbon pads and discs. Most cars will have steel discs and some sort of non-carbon pad.

Regards JetMech



JetMech split the back of his pants. He can feel the wind in his hair.
User currently offlineSFONative From United States of America, joined Jan 2008, 209 posts, RR: 0
Reply 12, posted (5 years 9 months 1 week 6 days 12 hours ago) and read 18376 times:



Quoting BMI727 (Reply 5):
It's the same stuff that turns the rims on your car black. Sometimes you'll see a car with disc brakes in the front and drums in the rear which will have front rims several shades darker than the rears due to brake dust.

Usually the case on most cars since the front brakes always work the hardest regardless of the brake setup.

Quoting Mascmo (Reply 9):
Now don't you just wish your car could shed brake dust like this?!?!  

That I do. In my experience, I see it as the mark of a true German sports car! Just kidding, It is actually self applying sun block to protect your wheels from fading.  Cool


User currently offlineHAWK21M From India, joined Jan 2001, 31702 posts, RR: 56
Reply 13, posted (5 years 9 months 1 week 6 days 10 hours ago) and read 18150 times:

Brake dust caused by Autoretract braking commencing.
regds
MEL



Think of the brighter side!
User currently offlineFatmirJusufi From Albania, joined Jan 2009, 2441 posts, RR: 7
Reply 14, posted (5 years 9 months 1 week 6 days 10 hours ago) and read 18080 times:

Totally agreed - brake dust. See more examples:


View Large View Medium
Click here for bigger photo!

Photo © Roel Kroes
View Large View Medium
Click here for bigger photo!

Photo © Luc Willems



View Large View Medium
Click here for bigger photo!

Photo © Steve Brimley
View Large View Medium
Click here for bigger photo!

Photo © Michael Carter



View Large View Medium
Click here for bigger photo!

Photo © D. Coleman



Fatmir



DO FLIGHTS. NOT FIGHTS.
User currently offlineHMan From Germany, joined Jul 2006, 58 posts, RR: 0
Reply 15, posted (5 years 9 months 1 week 6 days 5 hours ago) and read 17191 times:

Can't resist to ask  Wink : Does the French government out source the cleaning of its planes to their national flag carrier? Big grin

User currently offlineLGW340 From United Kingdom, joined May 2007, 317 posts, RR: 0
Reply 16, posted (5 years 9 months 1 week 6 days 4 hours ago) and read 15867 times:

Im sure thats brake dust. Great picture!


Live life from the window seat...
User currently offline4EVERVARIG From United States of America, joined Jan 2009, 66 posts, RR: 0
Reply 17, posted (5 years 9 months 1 week 6 days 3 hours ago) and read 15419 times:



Quoting JetMech (Reply 11):
given the size differences, would airplane break pads be manufactured with the same material car pads are?

Although in theory, airplane brakes work similarly to your car's ABS braking system, airplane brake pads are designed to withstand a higher temperature...if I am not mistake above 1000 degrees, to ensure that they do not fail. Remember that we are dealing with an aircraft which is bigger and much heavier than a regular automobile and also take into consideration the speed and engine thrust into the equation.

There was a special on Discovery Channel the other day where they showed the inner workings of an aircraft brake and tire. Many of the tested items failed on the simulator as they caught fire when tested to the limit. They showed how much heat the break pads withstand as they were glowing red hot on the simulator.


User currently offlineN405MX From Mexico, joined May 2004, 1378 posts, RR: 9
Reply 18, posted (5 years 9 months 1 week 6 days 3 hours ago) and read 15419 times:

Brake Dust, usually when the gear retracts, wheels brake to stop spinning before entering the wheel bay, so they don´t cause any damage, the nose gear has no breaks, but in the bay there are two steel plates that stop the wheels when they enter the bay; because of the high speed air passing thru the wheels, it blows the dust away.

Something similar happens to your car brakes, but usually the brake dust covers your wheels (rims) and the brake calipers.

Best Regards

[Edited 2009-03-12 09:20:28]


Life is what happens when you have other plans.....
User currently offline4EVERVARIG From United States of America, joined Jan 2009, 66 posts, RR: 0
Reply 19, posted (5 years 9 months 1 week 6 days 3 hours ago) and read 15376 times:



Quoting HMan (Reply 15):

Nope, like in the United States, the French Air Force takes care of their airplanes, including cleaning and maintenance.


User currently offlineTK787 From United States of America, joined Jan 2006, 4475 posts, RR: 12
Reply 20, posted (5 years 9 months 1 week 6 days 3 hours ago) and read 14880 times:

Here is a thread I started 2.5 years ago, same topic;
http://www.airliners.net/aviation-fo...general_aviation/read.main/2926360


User currently offlineAA777223 From United States of America, joined Feb 2006, 1259 posts, RR: 6
Reply 21, posted (5 years 9 months 1 week 6 days 3 hours ago) and read 14800 times:



Quoting 4EVERVARIG (Reply 19):

Nope, like in the United States, the French Air Force takes care of their airplanes, including cleaning and maintenance.

I think he was referring to the dirtiness of the aircraft in question...



Sic 'em bears
User currently offline413X3 From United States of America, joined Jul 2008, 1983 posts, RR: 0
Reply 22, posted (5 years 9 months 1 week 6 days ago) and read 11318 times:



Quoting 4EVERVARIG (Reply 19):

Nope, like in the United States, the French Air Force takes care of their airplanes, including cleaning and maintenance.

it was a friendly jab at the awful appearance of both the national carrier and the air force of that country


User currently offlineJumboJim747 From Australia, joined Oct 2004, 2465 posts, RR: 44
Reply 23, posted (5 years 9 months 1 week 5 days 23 hours ago) and read 10214 times:



Quoting HAWK21M (Reply 13):
Brake dust caused by Autoretract braking commencing.

Also it could be some of the settled dust from the previous landing no ?
Cheers



On a wing and a prayer
User currently offlineLegacytravel From United States of America, joined Aug 2005, 1067 posts, RR: 2
Reply 24, posted (5 years 9 months 1 week 5 days 19 hours ago) and read 6700 times:



Quoting HAMAD (Reply 4):
i guess thats why my wheel rims have been always getting black after i replaced my brake pads
thanks for the info guys

The car pads should not show dust until they are starting to wear pretty bad. They will smell and smoke a bit but they should be letting off dust right away.

Try a brake pad with gold in them. They are the best and they onlu cost about $35-50 USD for a front set.

I sed to work in auto parts many eons ago when I had a full head of hair and was 50lbs lighter  Silly .

Mark in MKE



I love the smell of Jet fuel in the Morning
User currently offlineHAWK21M From India, joined Jan 2001, 31702 posts, RR: 56
Reply 25, posted (5 years 9 months 1 week 4 days 11 hours ago) and read 3562 times:



Quoting JumboJim747 (Reply 23):
Also it could be some of the settled dust from the previous landing no ?

True.When the Brakes work,the residue dust gets shaken off.
regds
MEL.



Think of the brighter side!
Top Of Page
Forum Index

This topic is archived and can not be replied to any more.

Printer friendly format

Similar topics:More similar topics...
What Is Happening In This Picture posted Fri Jan 5 2007 02:48:54 by Jetdoctor
What Is Wrong With This Picture? posted Sun Aug 29 2004 00:36:26 by KAUST
What Is Wrong With This Picture posted Fri Dec 5 2003 13:36:51 by Yeeha
What Is Wrong With This A/c? posted Wed May 17 2006 08:41:00 by Alespesl
What Is Happening On This Picture? posted Tue Mar 11 2003 07:10:31 by Lacke
What Is Wrong With This Site? posted Sat Jan 20 2001 19:58:42 by Olympic A-340
What's Wrong With This Picture And Where Is It? posted Mon Jun 18 2007 01:27:27 by 87GROUNDED
What's Wrong With This Picture? posted Wed Aug 20 2008 02:24:24 by DL Widget Head
What's Smoking In This Picture? posted Wed Sep 21 2005 22:47:13 by Drinkstrolley
Who Is The Woman In This Picture? posted Sun Jul 17 2005 10:41:05 by Trident2e