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A320 Low Autobrake - Type 1 or 2

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A320 Low Autobrake - Type 1 or 2

Old 8th Feb 2023, 08:13
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A320 Low Autobrake - Type 1 or 2

Hi guys,

Is the Autobrake Low Type 1 or 2 setting specific to MSNs or is it a customer option?

Thanks
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Old 8th Feb 2023, 10:47
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Itís an update, new mod.
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Old 8th Feb 2023, 16:48
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Indeed itĎs a mod. Out whole fleet has had the update now, but flysmart isnĎt updated yet. Is that something thats is comming? Or maybe there already but it costs $£Ä and find the beancounters it not worth to purchase?
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Old 9th Feb 2023, 07:20
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Itís a mod I can highly recommend. Type 2 braking is very much braking like you would do manually, but with the advantage of being done by autobrake (one application)
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Old 9th Feb 2023, 13:01
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Only our newest planes have this mod, and itís quite nice.

5/5
would recommend
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Old 9th Feb 2023, 14:42
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Type 2 activates after 2 seconds delay as against 4 seconds in type 1 also deceleration rate is 2m/secē2 instead 1.7m/sec*2 resulting in LDR reduction upto 450mtrs. With the rise of fuel saving tactics with increased use of Flap3 landings, it prevents resorting to sometimes eventual manual braking which results in higher brake temperatures and brake wear.

Last edited by vilas; 9th Feb 2023 at 14:55.
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Old 9th Feb 2023, 21:54
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Hopefully my lot will fit it, I mostly find that low is not enough and medium is too aggressive unless you are somewhere really short.
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Old 10th Feb 2023, 00:51
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Out of curiosity I wonder how much does it cost to do a modification such as this?
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Old 10th Feb 2023, 07:04
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Originally Posted by dream747
Out of curiosity I wonder how much does it cost to do a modification such as this?
Depends on whoís doing it, I suppose. An IT college student will probably do it during his lunch break if you give him change for the vending machine.

Iím guessing Airbus charges 5 or 6 figures.

Last edited by Check Airman; 26th Apr 2023 at 00:22.
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Old 25th Apr 2023, 15:41
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Can someone here pls elaborate how this Type1/2 selection happens? I couldn't find anything via a quick google search.

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Old 25th Apr 2023, 18:09
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Originally Posted by vilas
Type 2 activates after 2 seconds delay as against 4 seconds in type 1 also deceleration rate is 2m/secē2 instead 1.7m/sec*2 resulting in LDR reduction upto 450mtrs. With the rise of fuel saving tactics with increased use of Flap3 landings, it prevents resorting to sometimes eventual manual braking which results in higher brake temperatures and brake wear.

Hi Vilas.

Thanks for the information. I was unaware of the change of the Autobrake low setting. I checked in our FCOM, that modification is quite old actually. Our fleet is equipped since March 2016.
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Old 25th Apr 2023, 18:39
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Originally Posted by pineteam
Hi Vilas.

Thanks for the information. I was unaware of the change of the Autobrake low setting. I checked in our FCOM, that modification is quite old actually. Our fleet is equipped since March 2016.
It was not available in 2016. You may be referring to something else.
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Old 25th Apr 2023, 19:06
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According to the date on top it’s from March 2016. I have a FCOM from 2018 also showing the same 🤔.
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Old 25th Apr 2023, 22:14
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Originally Posted by Zar_1
Can someone here pls elaborate how this Type1/2 selection happens? I couldn't find anything via a quick google search.
Itís a modification, not a selectable mode.
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Old 26th Apr 2023, 16:09
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Originally Posted by AerocatS2A
Itís a modification, not a selectable mode.
Okie, thanks a lot.

How would I know though, if some particular MSN has had the upgrade?
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Old 26th Apr 2023, 16:32
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Originally Posted by Zar_1
Okie, thanks a lot.

How would I know though, if some particular MSN has had the upgrade?
The easiest way is to do what pineteam did and go to FCOM-DSC-32-30-20-AUTO BRAKE PANEL and see what the parameters are for the low setting. If itís 2 m/s2 deceleration after 2 seconds then itís the newer version, if itís 1.7 after 4 itís the older one.

You could also try and find it in the modification section at the front of the FCOM. Look for ďLANDING GEAR - NORMAL BRAKING - MODIFY AUTOBRAKE LOW MODE SETTINGSĒ and see what aircraft itís been applied to.
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Old 26th Apr 2023, 20:14
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You can also check the FCOM filtered for your MSN and check the As installed table at the front of the FCOM.
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Old 27th Apr 2023, 02:24
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Originally Posted by Jwscud
You can also check the FCOM filtered for your MSN and check the As installed table at the front of the FCOM.
Itís not on there for ours.
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Old 27th Apr 2023, 12:32
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It's not there in the "As installed table" as well for us but our fleet has the modifications done.

If your fleet has it FCOM systems should now show for Autobrake LO the deceleration should be 2m/s^2 and start 2s after spoiler extension.

It is indeed a great improvement from the old setting.
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