Autobrake Landing Distance Calculation
In order to calculate the Landing Distance with the different Autobrake settings, use one of the following formulas below.
Rule Of Thumb
Autobreak LOW
Landing Distance = Grossweight (GW) in tons [t] x 30
Autobreak MEDIUM
Landing Distance = Grossweight (GW) in tons [t] x 20
Wet Runway
Landing Distance = Calculated LD in meters [m] + 15%
Examples
Use these examples to help with the calculation.
Autobrake LOW
Example with AutoBreak LOW and a Grossweight (GW) of 60 [t].
LD = Grossweight (GW) in tons [t] x 30
Example
With a GW of 60 [t] the calculation would be as follows:
LD = 60 [t] x 30 = 1800 [m] required Landing Distance
Autobrake MEDIUM
Example with AutoBreak MEDIUM and a GroundWeight of 60 [t].
LD = Grossweight (GW) in tons [t] x 20
Example
With a GW of 60 [t] the calculation would be as follows: LD = 60 x 20 = 1200 [m] required Landing Distance
Wet Runway
Caution
In case the runway is wet, add another 15% to that.
Taken the example above, with a calculated Landing Distance of 1200 [m], the calculation for a wet runway would be:
1200[m] + 15% (180[m])
= 1380 [m]
Warning
Only for Flight-Simulation!