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 10 Brakes on landing (Read 2071 times)
CXA546
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Brakes on landing
Dec 27th, 2012 at 4:29am
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I haven't actually set auto brakes before landing as of yet. When I land, the brakes engage automatically, and won't release until I come to a complete stop. Has anyone experienced this?
  

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Markoz
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Re: Brakes on landing
Reply #1 - Dec 27th, 2012 at 9:58am
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Yes. It's a known issue.

I find that it doesn't make any difference what Autobrake setting I use, they stop me very quickly. So if I use them, I usually turn them OFF manually before coming to a complete stop (this is the only way I have found that works). Also. If I use the Autobrakes, I don't use reverse thrust to slow the plane down because there is no need.
  

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marvic
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Re: Brakes on landing
Reply #2 - Dec 27th, 2012 at 2:52pm
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CXA546 wrote on Dec 27th, 2012 at 4:29am:
I haven't actually set auto brakes before landing as of yet. When I land, the brakes engage automatically, and won't release until I come to a complete stop. Has anyone experienced this?


Yes indeed as Markoz posted, it is know issue. My fix is to go into the aircraft config and set "auto_brakes = 0" Although the autobrakes are inop after that, just use the brakes, spoilers and thrust reversers and finish your rollout. For now some of the fixes are walkarounds to the bugs. Happy Landings.
  

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AirCanadaGuy
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Re: Brakes on landing
Reply #3 - Dec 27th, 2012 at 5:06pm
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The autobrakes apply so much braking power right now that they would get really hot in real life... I set the auto_brake=1 to 0 which disables the autobrakes, like Marvic. I use reverse thrust and spoilers to bring the speed down to 60 knots then lite braking to 20 knots.
  

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Markoz
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Re: Brakes on landing
Reply #4 - Dec 28th, 2012 at 2:30am
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You don't need to set auto_brake=1 to 0. Just don't move the knob. Grin

See my post below!
  

Mark Fletcher



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AirCanadaGuy
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Re: Brakes on landing
Reply #5 - Dec 28th, 2012 at 1:50pm
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Even if I didn't move the knob, they would still be armed and it seems like on a very high setting as I would stop in about 1500'. Shocked

So I had to disable them. The spoilers and reverse thrust is plenty for a small plane.
  

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CXA546
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Re: Brakes on landing
Reply #6 - Dec 28th, 2012 at 3:07pm
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Yep, I don't even touch the switch at all, and the brakes kick in as soon as I land; with the switch in the off position. I'll try the cfg setting. Thanks for the replies.
  

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Markoz
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Re: Brakes on landing
Reply #7 - Dec 30th, 2012 at 5:46am
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Markoz wrote on Dec 28th, 2012 at 2:30am:
You don't need to set auto_brake=1 to 0. Just don't move the knob. Grin

Disregard this. You do need to change it. I just don't remember changing mine. I must be getting old! Shocked
  

Mark Fletcher



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CXA546
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Re: Brakes on landing
Reply #8 - Jan 4th, 2013 at 2:08pm
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My aircraft.cfg had auto_brakes=5. I just set it to 0.

  

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LOU
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Re: Brakes on landing
Reply #9 - Jan 4th, 2013 at 7:10pm
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Auto brakes on the real planes was a show stopper!  Shocked

The rule of thumb was to match auto brake setting with approach.

Example: CAT-II, use 2 on auto brakes, CAT-III use three.

There were two ways to get rid of auto brakes on roll out. A tap of normal brakes with the rudder or move the switch to off.

It was hard to get a smooth disconnect using the foot brakes so most pilots would move the switch to disarm during roll out.

If you fail to disconnect via either method, the plane would come to an abrupt stop.

I never saw full auto brakes used during real world flying, only in the simulator. One time I was ferrying a light 767 from San Diego to KLAX.
On landing I selected 3 on the auto brakes - one below MAX. It was a very short stop!
  

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USCG76
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Re: Brakes on landing
Reply #10 - Jan 4th, 2013 at 11:03pm
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With Canadian North, Ive used the Max autobrake on short iced up rwys. Very common procedure in the Arctic RW. Yes most the time matching AB with type Cat landing is the best method. But remember in the extreme conditions and parts of the world those procedures are optional.
  

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CXA546
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Re: Brakes on landing
Reply #11 - Jan 7th, 2013 at 5:49pm
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Interesting, thanks for the tips. I'll be sure to keep this in mind when CS fixes the autobrakes. Which should be very soon!
  

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Markoz
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Re: Brakes on landing
Reply #12 - Jan 8th, 2013 at 1:31pm
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LOU wrote on Jan 4th, 2013 at 7:10pm:
Auto brakes on the real planes was a show stopper!  Shocked

The rule of thumb was to match auto brake setting with approach.

Example: CAT-II, use 2 on auto brakes, CAT-III use three.

There were two ways to get rid of auto brakes on roll out. A tap of normal brakes with the rudder or move the switch to off.

It was hard to get a smooth disconnect using the foot brakes so most pilots would move the switch to disarm during roll out.

If you fail to disconnect via either method, the plane would come to an abrupt stop.

I never saw full auto brakes used during real world flying, only in the simulator. One time I was ferrying a light 767 from San Diego to KLAX.
On landing I selected 3 on the auto brakes - one below MAX. It was a very short stop!  

Oops. I guess I've been doing it wrong. I use the higher numbers if I want to stop faster and get off the runway ASAP (like at the earliest runway exit possible)! Shocked
  

Mark Fletcher



CS L-1011 (FSX) - YSSY - YMML - 1.3 hours

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LOU
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Re: Brakes on landing
Reply #13 - Jan 8th, 2013 at 4:31pm
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Mark said: Oops. I guess I've been doing it wrong. I use the higher numbers if I want to stop faster and get off the runway ASAP (like at the earliest runway exit possible)!

No, you were doing it correctly.

Bigger number, the more auto-brakes you get. Using auto-brakes should get you stopped sooner since the computer applies just the right amount of brake for the selected amount. Of all the Boeing planes I flew, the only plane that was hard to stop was the 747. It was very easy to heat up the brakes if you applied a bit much. The 767-300 was the next in the hot brake family. The 757 and 727 did not need as much brake to stop.

As I said above in an earlier post, one time I used 4 on the 767-200 at the end of a ferry flight and it stopped VERY fast.  Shocked







Too much brake gets you this!  Shocked



Lou

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