Clearway Distance Calculator

✖Takeoff Distance is the distance from where the vehicle leaves the ground to until it reaches 50 ft (or 15 m).ⓘ Takeoff Distance [TOD]			+10% -10%
✖Liftoff Distance is the portion of the takeoff procedure during which the airplane is accelerated from a standstill to an airspeed that provides sufficient lift for it to become airborne.ⓘ Liftoff Distance [s_LO]			+10% -10%

✖Clearway Distance is the difference between takeoff distance available (TODA) and takeoff run available (TORA).ⓘ Clearway Distance [CL]

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Formula

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Clearway Distance

Formula

`"CL" = 0.5*("TOD"-(1.15*"s"_{"LO"}))`

Example

`"656.75m"=0.5*("1900m"-(1.15*"510m"))`

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Download Engine-Out Takeoff Case under Estimation of Runway Length Formulas PDF

Clearway Distance Solution

STEP 0: Pre-Calculation Summary

Formula Used

Clearway Distance = 0.5*(Takeoff Distance-(1.15*Liftoff Distance))
CL = 0.5*(TOD-(1.15*s_LO))
This formula uses 3 Variables

Variables Used

Clearway Distance - (Measured in Meter) - Clearway Distance is the difference between takeoff distance available (TODA) and takeoff run available (TORA).
Takeoff Distance - (Measured in Meter) - Takeoff Distance is the distance from where the vehicle leaves the ground to until it reaches 50 ft (or 15 m).
Liftoff Distance - (Measured in Meter) - Liftoff Distance is the portion of the takeoff procedure during which the airplane is accelerated from a standstill to an airspeed that provides sufficient lift for it to become airborne.

STEP 1: Convert Input(s) to Base Unit

Takeoff Distance: 1900 Meter --> 1900 Meter No Conversion Required
Liftoff Distance: 510 Meter --> 510 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

CL = 0.5*(TOD-(1.15*s_LO)) --> 0.5*(1900-(1.15*510))

Evaluating ... ...

CL = 656.75

STEP 3: Convert Result to Output's Unit

656.75 Meter --> No Conversion Required

FINAL ANSWER

656.75 Meter <-- Clearway Distance

(Calculation completed in 00.020 seconds)

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Home » Engineering » Civil » Transportation Engineering » Airport Planning and Design » Engine-Out Takeoff Case under Estimation of Runway Length » Normal Takeoff Cases under Estimation of Runway Length » Clearway Distance

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Created by Mithila Muthamma PA

Coorg Institute of Technology (CIT), Coorg

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National Institute of Technology (NIT), Warangal

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< 8 Normal Takeoff Cases under Estimation of Runway Length Calculators

Takeoff Run

Go Takeoff Run given takeoff distance = Takeoff Distance-Clearway Distance

Lift off Distance given Clearway Distance

Go Liftoff Distance = -(((Clearway Distance/0.5)-Takeoff Distance)/1.15)

Takeoff Distance given Clearway Distance

Go Takeoff Distance = (Clearway Distance/0.5)+(1.15*Liftoff Distance)

Takeoff Distance given Takeoff Run

Go Takeoff Distance given takeoff run = Takeoff Run+Clearway Distance

Clearway Distance

Go Clearway Distance = 0.5*(Takeoff Distance-(1.15*Liftoff Distance))

Clearway Distance given Field Length

Go Clearway Distance = Field Length-Full Strength Pavement Distance

Full Strength Pavement Distance

Go Full Strength Pavement Distance = Field Length-Clearway Distance

Field Length

Go Field Length = Full Strength Pavement Distance+Clearway Distance

Clearway Distance Formula

Clearway Distance = 0.5*(Takeoff Distance-(1.15*Liftoff Distance))
CL = 0.5*(TOD-(1.15*s_LO))

What is Takeoff Distance?

The Takeoff Distance consists of two parts, the ground run, and the distance from where the vehicle leaves the ground to until it reaches 50 ft (or 15 m). The sum of these two distances is considered the takeoff distance

How to Calculate Clearway Distance?

Clearway Distance calculator uses Clearway Distance = 0.5*(Takeoff Distance-(1.15*Liftoff Distance)) to calculate the Clearway Distance, The Clearway Distance is the difference between takeoff distance available (TODA) and takeoff run available (TORA). Clearways originate from the end of the takeoff run available. Clearway Distance is denoted by CL symbol.

How to calculate Clearway Distance using this online calculator? To use this online calculator for Clearway Distance, enter Takeoff Distance (TOD) & Liftoff Distance (s_LO) and hit the calculate button. Here is how the Clearway Distance calculation can be explained with given input values -> 656.75 = 0.5*(1900-(1.15*510)).

FAQ

What is Clearway Distance?

The Clearway Distance is the difference between takeoff distance available (TODA) and takeoff run available (TORA). Clearways originate from the end of the takeoff run available and is represented as CL = 0.5*(TOD-(1.15*s_LO)) or Clearway Distance = 0.5*(Takeoff Distance-(1.15*Liftoff Distance)). Takeoff Distance is the distance from where the vehicle leaves the ground to until it reaches 50 ft (or 15 m) & Liftoff Distance is the portion of the takeoff procedure during which the airplane is accelerated from a standstill to an airspeed that provides sufficient lift for it to become airborne.

How to calculate Clearway Distance?

The Clearway Distance is the difference between takeoff distance available (TODA) and takeoff run available (TORA). Clearways originate from the end of the takeoff run available is calculated using Clearway Distance = 0.5*(Takeoff Distance-(1.15*Liftoff Distance)). To calculate Clearway Distance, you need Takeoff Distance (TOD) & Liftoff Distance (s_LO). With our tool, you need to enter the respective value for Takeoff Distance & Liftoff Distance and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Clearway Distance?

In this formula, Clearway Distance uses Takeoff Distance & Liftoff Distance. We can use 1 other way(s) to calculate the same, which is/are as follows -

Clearway Distance = Field Length-Full Strength Pavement Distance

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