A320

[FlyVeryHigh-]

Hi there. Can anyone tell me how many brake units there are on an A320? Is there one on the nose gear?


Cheers!


*Apologies, title is meant to say A320 Brakes*

[spo]

Hi There are 4 Brake Units. One for each Mainwheel. Nothing on the Nosewheels.

[TomU]

Technically, and I really don't mean this to sound pedantic or smart - some A320s have "Spin Brakes" on the nosewheels. That is, friction brakes in the top of the NLG Bay that stop the nosewheel spin on retraction. I don't know if it was abandoned on later production aircraft, but there is an optional SB to remove them as they were deemed not necessary.

As an aside, the B727 is the only aircraft I have encountered with actual brakes on the nosewheels, are there any others?

[FlyVeryHigh-]

Many thanks for the information. Much appreciated spo!

[FlyVeryHigh-]

I have another question if you guys don't mind! If we are talking about carbon/carbon a320 braking units, does this mean that both rotors & stators are made from the carbon/carbon material?

[TURIN]

As an aside, the B727 is the only aircraft I have encountered with actual brakes on the nosewheels, are there any others?


I think Concorde did. Something to do with having a long leg and gyroscopic precession as the nose gear retracted.

[dixi188]

Indian Airlines have bogie main gear with 4 wheels on each main leg, so I presume there are 8 brake units on these aircraft.

[Terry McCassey]

I believe the Convair CV880/990 had nose gear brakes too.

[FlyVeryHigh-]

Hello again.


Am I correct in thinking the following brake assembly has 4 stators, 3 rotors?


https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcTICei-FypoA_6uAli4ATLOz1Woh9wCYjNFRP8IHv-F6cXb8ZVJ (http://www.google.co.uk/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0CAcQjRw&url=http%3A%2F%2Fcommons.wikimedia.org%2Fwiki%2FFile%3AA320-Carbon-Brake_Le_Bourget_20110624.jpg&ei=_tIFVduYJNDzasSwguAO&bvm=bv.88198703,d.ZGU&psig=AFQjCNHIstlFXoCGOj03BBuqXERhPeluZg&ust=1426531411346754)

[TURIN]

Looks like four of each to me. :ok:

Thinking about it, there would be a stator at each end of the pack so four rotors and five stators.

[FlyVeryHigh-]

Many thanks TURIN! Its surprisingly difficult to find this information on the internet, meaning having to resort to counting them from an image is all I can really do at the moment!


Thanks again!

[jaja]

TomU

"As an aside, the B727 is the only aircraft I have encountered with actual brakes on the nosewheels, are there any others?"

Yes, MAERSK AIR (Denmark) had brakes on the nose wheels on some of their B737, that flew into the Faroe Islands

[FlyVeryHigh-]

Back again. Does anyone have any idea what the brake temperature would usually be after a landing or rto? Im aware that t/o with a temp exceeding 150 degrees isn't allowed, but not sure which kind of temperature range would be hit after the landing or rto. Am I right in assuming approximately 600 degrees would be a good ball park figure?

[Terry McCassey]

Very difficult to cite average temperatures as too many variables. 600°C not good, likely something wrong somewhere if it's just one brake at this temp ! Max take off temp for an A330/A340 from FCOM is 300°C


Don't quote me - memory items only

[Terry McCassey]

The A320 brake unit has 4 rotors and 5 stators.