Touchdown Velocity in Take Off and Landing Formulas

Touchdown Velocity is the instantaneous velocity of an aircraft when it touches the ground during landing. And is denoted by V_T. Touchdown Velocity is usually measured using the Meter per Second for Speed. Note that the value of Touchdown Velocity is always positive.

Formulas to find Touchdown Velocity in Take Off and Landing

fxTouchdown velocity for given stall velocityGo

fxTouchdown velocityGo

Take Off and Landing formulas that make use of Touchdown Velocity

fxStall velocity for given touchdown velocityGo

fxLanding ground roll distanceGo

List of variables in Take Off and Landing formulas

fx Stall Velocity Go

fx Weight Go

fx Freestream Density Go

fx Reference Area Go

fx Maximum Lift Coefficient Go

FAQ

What is the Touchdown Velocity?

Touchdown Velocity is the instantaneous velocity of an aircraft when it touches the ground during landing. Touchdown Velocity is usually measured using the Meter per Second for Speed. Note that the value of Touchdown Velocity is always positive.

Can the Touchdown Velocity be negative?

No, the Touchdown Velocity, measured in Speed cannot be negative.

What unit is used to measure Touchdown Velocity?

Touchdown Velocity is usually measured using the Meter per Second[m/s] for Speed. Meter per Minute[m/s], Meter per Hour[m/s], Kilometer per Hour[m/s] are the few other units in which Touchdown Velocity can be measured.

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