Drag Calculator

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Introduction and Governing Equations

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Lift and Drag Polar

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Preliminary Aerodynamics

✖The Gross Weight of the airplane is the weight with full fuel and payload.ⓘ Gross Weight [W₀]			+10% -10%
✖The Lift Coefficient is a dimensionless coefficient that relates the lift generated by a lifting body to the fluid density around the body, the fluid velocity and an associated reference area.ⓘ Lift Coefficient [C_L]			+10% -10%
✖Drag Coefficient is a dimensionless quantity that is used to quantify the drag or resistance of an object in a fluid environment, such as air or water.ⓘ Drag Coefficient [C_D]			+10% -10%

✖Drag Force is the resisting force experienced by an object moving through a fluid ,such as air.ⓘ Drag [F_D]

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Formula

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Drag

Formula

`"F"_{"D"} = "W"_{"0"}/"C"_{"L"}/"C"_{"D"}`

Example

`"151.5152N"="5000kg"/"1.1"/"30"`

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Drag Solution

STEP 0: Pre-Calculation Summary

Formula Used

Drag Force = Gross Weight/Lift Coefficient/Drag Coefficient
F_D = W₀/C_L/C_D
This formula uses 4 Variables

Variables Used

Drag Force - (Measured in Newton) - Drag Force is the resisting force experienced by an object moving through a fluid ,such as air.
Gross Weight - (Measured in Kilogram) - The Gross Weight of the airplane is the weight with full fuel and payload.
Lift Coefficient - The Lift Coefficient is a dimensionless coefficient that relates the lift generated by a lifting body to the fluid density around the body, the fluid velocity and an associated reference area.
Drag Coefficient - Drag Coefficient is a dimensionless quantity that is used to quantify the drag or resistance of an object in a fluid environment, such as air or water.

STEP 1: Convert Input(s) to Base Unit

Gross Weight: 5000 Kilogram --> 5000 Kilogram No Conversion Required
Lift Coefficient: 1.1 --> No Conversion Required
Drag Coefficient: 30 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

F_D = W₀/C_L/C_D --> 5000/1.1/30

Evaluating ... ...

F_D = 151.515151515152

STEP 3: Convert Result to Output's Unit

151.515151515152 Newton --> No Conversion Required

FINAL ANSWER

151.515151515152 ≈ 151.5152 Newton <-- Drag Force

(Calculation completed in 00.004 seconds)

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Created by Himanshu Sharma

National Institute of Technology, Hamirpur (NITH), Himachal Pradesh

Himanshu Sharma has created this Calculator and 50+ more calculators!

Verified by Kartikay Pandit

National Institute Of Technology (NIT), Hamirpur

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< 21 Lift and Drag Polar Calculators

Drag Coefficient for given zero-lift drag coefficient

Go Drag Coefficient = Zero-lift drag coefficient+((Lift Coefficient^2)/(pi*Oswald Efficiency Factor*Aspect Ratio of a wing))

Drag Coefficient for given parasite drag coefficient

Go Drag Coefficient = Parasite Drag coefficient+((Lift Coefficient^2)/(pi*Oswald Efficiency Factor*Aspect Ratio of a wing))

Coefficient of Drag due to lift

Go Coefficient of drag due to lift = (Lift Coefficient^2)/(pi*Oswald Efficiency Factor*Aspect Ratio of a wing)

Modern Lift Equation

Go Lift on Airfoil = (Lift Coefficient*Air Density*Aircraft Gross Wing Area*Fluid Velocity^2)/2

Induced drag given span efficiency factor

Go Induced Drag = Drag Coefficient*Density of Material*Velocity^2*Reference Area/2

Lift given induced drag

Go Lift Force = sqrt(Induced Drag*3.14*Dynamic Pressure*Lateral plane span^2)

Induced Drag for Wings having Elliptic Lift Distribution

Go Induced Drag = (Lift Force^2)/(3.14*Dynamic Pressure*Lateral plane span^2)

Coefficient of lift given drag

Go Lift Coefficient = (Gross Weight*Drag Coefficient)/Drag Force

Coefficient of drag given drag

Go Drag Coefficient = (Lift Coefficient*Drag Force)/Gross Weight

Drag

Go Drag Force = Gross Weight/Lift Coefficient/Drag Coefficient

Lift coefficient given drag coefficient

Go Lift Coefficient = Lift Force/Drag Force*Drag Coefficient

Drag coefficient given lift coefficient

Go Drag Coefficient = Lift Coefficient*Drag Force/Lift Force

Lift given drag coefficient

Go Lift Force = Lift Coefficient/Drag Coefficient*Drag Force

Drag given lift coefficient

Go Drag Force = Lift Force*Drag Coefficient/Lift Coefficient

Parasite Drag Coefficient at zero lift

Go Zero-lift drag coefficient = Drag Coefficient-Coefficient of drag due to lift

Lift given lift coefficient

Go Lift Force = Lift Coefficient*Dynamic Pressure

Drag given drag coefficient

Go Drag Force = Drag Coefficient*Dynamic Pressure

Lift coefficient new

Go Lift Coefficient = Lift Force/Dynamic Pressure

Drag coefficient new

Go Drag Coefficient = Drag Force/Dynamic Pressure

Lift given aerodynamic force

Go Lift Force = Aerodynamic Force-Drag Force

Drag given aerodynamic force

Go Drag Force = Aerodynamic Force-Lift Force

Drag Formula

Drag Force = Gross Weight/Lift Coefficient/Drag Coefficient
F_D = W₀/C_L/C_D

What is drag?

In fluid dynamics, drag is a force acting opposite to the relative motion of any object moving with respect to a surrounding fluid. This can exist between two fluid layers or between a fluid and a solid surface.

How to Calculate Drag?

Drag calculator uses Drag Force = Gross Weight/Lift Coefficient/Drag Coefficient to calculate the Drag Force, The Drag formula is defined as the force of drag experienced by an object due to movement through a fully enclosing medium given gross weight and coefficient of lift and drag. Drag Force is denoted by F_D symbol.

How to calculate Drag using this online calculator? To use this online calculator for Drag, enter Gross Weight (W₀), Lift Coefficient (C_L) & Drag Coefficient (C_D) and hit the calculate button. Here is how the Drag calculation can be explained with given input values -> 151.5152 = 5000/1.1/30.

FAQ

What is Drag?

The Drag formula is defined as the force of drag experienced by an object due to movement through a fully enclosing medium given gross weight and coefficient of lift and drag and is represented as F_D = W₀/C_L/C_D or Drag Force = Gross Weight/Lift Coefficient/Drag Coefficient. The Gross Weight of the airplane is the weight with full fuel and payload, The Lift Coefficient is a dimensionless coefficient that relates the lift generated by a lifting body to the fluid density around the body, the fluid velocity and an associated reference area & Drag Coefficient is a dimensionless quantity that is used to quantify the drag or resistance of an object in a fluid environment, such as air or water.

How to calculate Drag?

The Drag formula is defined as the force of drag experienced by an object due to movement through a fully enclosing medium given gross weight and coefficient of lift and drag is calculated using Drag Force = Gross Weight/Lift Coefficient/Drag Coefficient. To calculate Drag, you need Gross Weight (W₀), Lift Coefficient (C_L) & Drag Coefficient (C_D). With our tool, you need to enter the respective value for Gross Weight, Lift Coefficient & Drag Coefficient 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 Drag Force?

In this formula, Drag Force uses Gross Weight, Lift Coefficient & Drag Coefficient. We can use 3 other way(s) to calculate the same, which is/are as follows -

Drag Force = Drag Coefficient*Dynamic Pressure
Drag Force = Lift Force*Drag Coefficient/Lift Coefficient
Drag Force = Aerodynamic Force-Lift Force

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