How to Calculate Landing ground roll distance?
Landing ground roll distance calculator uses Landing Roll=1.69*(Weight^2)*(1/([g]*Freestream density*Reference Area*Maximum Lift Coefficient))*(1/((0.5*Freestream density*((0.7*Touchdown Velocity)^2)*Reference Area*(Zero-lift drag coefficient+(Ground effect factor*(lift coefficient^2)/(pi*Oswald efficiency factor*Aspect Ratio of a wing))))+(Coefficient of Rolling Friction*(Weight-(0.5*Freestream density*((0.7*Touchdown Velocity)^2)*Reference Area*lift coefficient))))) to calculate the Landing Roll, Landing ground roll distance is a function of weight, freestream density, maximum lift coefficient, touchdown velocity, coefficient of rolling friction (between the tires and ground), ground effect factor, lift and drag of the aircraft. Landing Roll and is denoted by s_{L} symbol.
How to calculate Landing ground roll distance using this online calculator? To use this online calculator for Landing ground roll distance, enter Weight (W), Freestream density (ρ_{∞}), Reference Area (S), Maximum Lift Coefficient (C_{L,max}), Touchdown Velocity (V_{T}), Zero-lift drag coefficient (C_{D,0}), Ground effect factor (ϕ), lift coefficient (C_{L}), Oswald efficiency factor (e), Aspect Ratio of a wing (AR) and Coefficient of Rolling Friction (μ_{r}) and hit the calculate button. Here is how the Landing ground roll distance calculation can be explained with given input values -> 0.000567 = 1.69*(100^2)*(1/([g]*1.225*5*1.65))*(1/((0.5*1.225*((0.7*193)^2)*5*(0.0161+(0.4*(10^2)/(pi*0.5*4))))+(0.1*(100-(0.5*1.225*((0.7*193)^2)*5*10))))).