Resistance force during ground roll Calculator

↳

⤿

Aircraft Performance

Aircraft Design

Introduction and Governing Equations

Static Stability and Control

⤿

⤿

✖Coefficient of Rolling Friction is the ratio of the force of rolling friction to the total weight of the object.ⓘ Coefficient of Rolling Friction [μ_r]			+10% -10%
✖Weight Newton is a vector quantity and defined as the product of mass and acceleration acting on that mass.ⓘ Weight Newton [W]			+10% -10%
✖The Lift Force, lifting force or simply lift is the sum of all the forces on a body that force it to move perpendicular to the direction of flow.ⓘ Lift Force [F_L]			+10% -10%

✖Rolling Resistance (or Rolling friction) is the force resisting the motion of a rolling body on a surface.ⓘ Resistance force during ground roll [R]

⎘ Copy

👎

Formula

✖

Resistance force during ground roll

Formula

`"R" = "μ"_{"r"}*("W"-"F"_{"L"})`

Example

`"4.984N"="0.1"*("60.34N"-"10.5N")`

Calculator

LaTeX

Reset

👍

Download Physics Formula PDF

Resistance force during ground roll Solution

STEP 0: Pre-Calculation Summary

Formula Used

Rolling Resistance = Coefficient of Rolling Friction*(Weight Newton-Lift Force)
R = μ_r*(W-F_L)
This formula uses 4 Variables

Variables Used

Rolling Resistance - (Measured in Newton) - Rolling Resistance (or Rolling friction) is the force resisting the motion of a rolling body on a surface.
Coefficient of Rolling Friction - Coefficient of Rolling Friction is the ratio of the force of rolling friction to the total weight of the object.
Weight Newton - (Measured in Newton) - Weight Newton is a vector quantity and defined as the product of mass and acceleration acting on that mass.
Lift Force - (Measured in Newton) - The Lift Force, lifting force or simply lift is the sum of all the forces on a body that force it to move perpendicular to the direction of flow.

STEP 1: Convert Input(s) to Base Unit

Coefficient of Rolling Friction: 0.1 --> No Conversion Required
Weight Newton: 60.34 Newton --> 60.34 Newton No Conversion Required
Lift Force: 10.5 Newton --> 10.5 Newton No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R = μ_r*(W-F_L) --> 0.1*(60.34-10.5)

Evaluating ... ...

R = 4.984

STEP 3: Convert Result to Output's Unit

4.984 Newton --> No Conversion Required

FINAL ANSWER

4.984 Newton <-- Rolling Resistance

(Calculation completed in 00.004 seconds)

You are here -

Home » Physics » Aircraft Mechanics » Aircraft Performance » Take-off and Landing » Take-Off » Resistance force during ground roll

Credits

Created by Vinay Mishra

Indian Institute for Aeronautical Engineering and Information Technology (IIAEIT), Pune

Vinay Mishra has created this Calculator and 300+ more calculators!

Verified by Shikha Maurya

Indian Institute of Technology (IIT), Bombay

Shikha Maurya has verified this Calculator and 200+ more calculators!

< 15 Take-Off Calculators

Take Off Ground Run

Go Takeoff Ground Run = Weight Of Aircraft/(2*[g])*int((2*Velocity of Aircraft)/(Thrust Force-Drag Force-Reference Of Rolling Resistance Coefficient*(Weight Of Aircraft-Lift Force)),x,0,Aircraft Lift Off Speed)

Drag during ground effect

Go Drag Force = (Parasite Drag coefficient+(((Lift Coefficient^2)*Ground effect factor)/(pi*Oswald efficiency factor*Aspect Ratio of a wing)))*(0.5*Freestream density*(Flight Velocity^2)*Reference Area)

Thrust for given liftoff distance

Go Thrust of an aircraft = 1.44*(Weight Newton^2)/([g]*Freestream density*Reference Area*Maximum Lift Coefficient*Liftoff Distance)

Liftoff distance

Go Liftoff Distance = 1.44*(Weight Newton^2)/([g]*Freestream density*Reference Area*Maximum Lift Coefficient*Thrust of an aircraft)

Liftoff velocity for given weight

Go Liftoff velocity = 1.2*(sqrt((2*Weight Newton)/(Freestream density*Reference Area*Maximum Lift Coefficient)))

Stall velocity for given weight

Go Stall Velocity = sqrt((2*Weight Newton)/(Freestream density*Reference Area*Maximum Lift Coefficient))

Maximum Lift coefficient for given liftoff velocity

Go Maximum Lift Coefficient = 2.88*Weight Newton/(Freestream density*Reference Area*(Liftoff velocity^2))

Ground effect factor

Go Ground effect factor = ((16*Height from Ground/Wingspan)^2)/(1+((16*Height from Ground/Wingspan)^2))

Maximum Lift coefficient for given stall velocity

Go Maximum Lift Coefficient = 2*Weight Newton/(Freestream density*Reference Area*(Stall Velocity^2))

Coefficient of rolling friction during ground roll

Go Coefficient of Rolling Friction = Rolling Resistance/(Weight Newton-Lift Force)

Lift acting on aircraft during ground roll

Go Lift Force = Weight Newton-(Rolling Resistance/Coefficient of Rolling Friction)

Weight of aircraft during ground roll

Go Weight Newton = (Rolling Resistance/Coefficient of Rolling Friction)+Lift Force

Resistance force during ground roll

Go Rolling Resistance = Coefficient of Rolling Friction*(Weight Newton-Lift Force)

Liftoff velocity for given stall velocity

Go Liftoff velocity = 1.2*Stall Velocity

Stall velocity for given liftoff velocity

Go Stall Velocity = Liftoff velocity/1.2

Resistance force during ground roll Formula

Rolling Resistance = Coefficient of Rolling Friction*(Weight Newton-Lift Force)
R = μ_r*(W-F_L)

What does the coefficient of rolling friction indicate?

The coefficient of rolling friction is the indication of how great the rolling resistance is for a given normal force between the wheel and the surface upon which it is rolling.

How to Calculate Resistance force during ground roll?

Resistance force during ground roll calculator uses Rolling Resistance = Coefficient of Rolling Friction*(Weight Newton-Lift Force) to calculate the Rolling Resistance, The Resistance force during ground roll is given by the coefficient of rolling resistance times the difference between weight and lift acting on the aircraft. Rolling Resistance is denoted by R symbol.

How to calculate Resistance force during ground roll using this online calculator? To use this online calculator for Resistance force during ground roll, enter Coefficient of Rolling Friction (μ_r), Weight Newton (W) & Lift Force (F_L) and hit the calculate button. Here is how the Resistance force during ground roll calculation can be explained with given input values -> 4.984 = 0.1*(60.34-10.5).

FAQ

What is Resistance force during ground roll?

The Resistance force during ground roll is given by the coefficient of rolling resistance times the difference between weight and lift acting on the aircraft and is represented as R = μ_r*(W-F_L) or Rolling Resistance = Coefficient of Rolling Friction*(Weight Newton-Lift Force). Coefficient of Rolling Friction is the ratio of the force of rolling friction to the total weight of the object, Weight Newton is a vector quantity and defined as the product of mass and acceleration acting on that mass & The Lift Force, lifting force or simply lift is the sum of all the forces on a body that force it to move perpendicular to the direction of flow.

How to calculate Resistance force during ground roll?

The Resistance force during ground roll is given by the coefficient of rolling resistance times the difference between weight and lift acting on the aircraft is calculated using Rolling Resistance = Coefficient of Rolling Friction*(Weight Newton-Lift Force). To calculate Resistance force during ground roll, you need Coefficient of Rolling Friction (μ_r), Weight Newton (W) & Lift Force (F_L). With our tool, you need to enter the respective value for Coefficient of Rolling Friction, Weight Newton & Lift Force and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search