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Brake Cooling A320

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Brake Cooling A320

Old 27th Jun 2023, 01:04
  #21 (permalink)  
 
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Low auto brake shouldn’t be giving anyone whiplash.
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Old 27th Jun 2023, 07:01
  #22 (permalink)  
 
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Originally Posted by Odins Raven
Iím new to the Airbus, having previously flown Boeing and other types.

Since there is no brake cooling table, is there a particular technique to work out whether I should be landing with max reverse to limit brake temps? I want to use idle reverse as much as possible but I donít want the brakes to be amber by the time I push back / reach the runway.

For info: Our fleet DOES NOT have brake fans and the turnaround times vary from 45 minutes to 1 hour.

Any help would be much appreciated.
Iíve never had to wait for brakes to cool before takeoff in 15 years of flying the A320/21. And thatís flying into some very short and hot airports. If the brakes are hot on turnaround turn the parking brake off to increase airflow around the brake pack.

Wether to use max reverse is a judgment call. If youíre looking at a short runway, heavy aircraft (medium auto brake/flap full), and a 45 min turn, then max reverse will help the brakes.
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Old 27th Jun 2023, 10:56
  #23 (permalink)  
 
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Jonty, I had a similar experience to you for the best part of 15 years. Then it happened. Where I least expected it. Smaller airports with short runways actually give us better control over managing hot brakes. Ludicrous airport layouts like Barcelona where you can be parked on the far side of the airport only to then have to taxi around the entire perimeter of the airport before you can depart (runway crossings not allowed) are the real culprit. 10 brake applications from 30-10 Kts (our company doesn't allow single engine taxi out) on a 30 degree day without brake fans will give you hot brakes at line up.
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Old 4th Jul 2023, 20:39
  #24 (permalink)  
 
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Originally Posted by Hey m8
Now I see. Iím saying exactly the same. Thatís why I suggest to use manual braking at lower speed (below 100 kts) and not to use autobrake. Looks like you misunderstood me
I wait until 70kts, especially in places like Vegas. Reverser to idle, feet on the brakes simultaneously. Works great every time. In fact, this past Sunday, we were landing 26L in Vegas when the tower asked us to exit at A6 instead of A7 since they flew a 737 of an airline with a widget on its tail right up our butt. I applied the brakes at 70kts, and even though I did so somewhat more robustly than normal, they never went above 200C. It was +37C outside.
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Old 4th Jul 2023, 22:12
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If you're landing somewhere long enough to have the luxury of delaying brake application until 70 knots then brake cooling is never going to be an issue anyway. Try landing in 1900m and get back to me.
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Old 4th Jul 2023, 22:13
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Originally Posted by Smooth Airperator
Jonty, I had a similar experience to you for the best part of 15 years. Then it happened. Where I least expected it. Smaller airports with short runways actually give us better control over managing hot brakes. Ludicrous airport layouts like Barcelona where you can be parked on the far side of the airport only to then have to taxi around the entire perimeter of the airport before you can depart (runway crossings not allowed) are the real culprit. 10 brake applications from 30-10 Kts (our company doesn't allow single engine taxi out) on a 30 degree day without brake fans will give you hot brakes at line up.
Indeed, it's often the taxi that causes the issues rather than the landing.
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Old 5th Jul 2023, 01:43
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Originally Posted by AerocatS2A
If you're landing somewhere long enough to have the luxury of delaying brake application until 70 knots then brake cooling is never going to be an issue anyway. Try landing in 1900m and get back to me.
Sounds like LGA to me. Same technique, except when landing a heavy 321, in which case it's medium autobrakes until the reverser rev up, then autobrakes off until 70kts then feet on the brakes again. Won't keep them under 200C, but under 300C-350C for sure. By the time we deplane 228 people and board up another 228, things will have cooled down nicely.
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Old 5th Jul 2023, 04:06
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Originally Posted by Amadis of Gaul
Sounds like LGA to me. Same technique, except when landing a heavy 321, in which case it's medium autobrakes until the reverser rev up, then autobrakes off until 70kts then feet on the brakes again. Won't keep them under 200C, but under 300C-350C for sure. By the time we deplane 228 people and board up another 228, things will have cooled down nicely.
Wellington, New Zealand. I find the best results is just to leave the medium brakes on until down to taxi speed. One brake application. Sometimes they go above 300 but I haven't had to use fans as yet.
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