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BobG

Auto Brake setting

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In the sim, flying the in house 737,I always set the auto brake to max when landing on short runways,& use RTO setting on takeoff, does it actually increase braking in the sim? FSX

 BobG

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I use AB2 for any Rwy over 7500 and AB3 for anything under 7500. I use manuals braking instead of AB1, I rarely need to use max AB, even if I'm heavy, I reserve AB max for emergencys. Here are the deceleration rates for the Autobrakes,

 

AB1 4 ft/sec

AB2 5 ft/sec

AB3 7 ft/sec

ABmax 14 ft/sec above 80 knots, 12 under 80 knots.

 

Also max Autobrake doesn't give you full braking, applying full manual braking will wive you the greatest deceleration rate. And I do not believe the default 737 doesn't accurately model the deceleration rates.

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Thanks 738 FLY,

                        Thanks for the info,so the sim does apply the settings,dont think it can make allowances for wet or icy snow covered  runways tho??,but good to know I am not wasting my time setting it,will count on reversers anyway & glad I don't have to pay for the brake linings using max AB?

 Thanks again BobG

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As for wet and snowy runways, Siri it should increase the landing distance, i'm not sure if it is accurately simulated in the Sim. I usually choose to leave autobrake off and go for a light manual breaking and full reverse thrust in those conditions, but if you do use ABs, id probably be better to use 2 to prevent hydroplaning or sliding. Also the thing to know about reverse thrust is the slower you were going to less effective it will be. I usually have my reverse thrust down to idle by 80kts and also disengaged auto brakes 80kts and go for manual breaking.

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