Total drag force for given required power Calculator

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Aircraft Performance

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Lift and Drag Requirements

Thrust and Power Requirements

✖Power is defined as the product of thrust force and velocity of aircraft.ⓘ Power [P]			+10% -10%
✖The Freestream Velocity is the velocity of air far upstream of an aerodynamic body, that is before the body has a chance to deflect, slow down or compress the air.ⓘ Freestream Velocity [V_∞]			+10% -10%

✖Drag Force is the resisting force experienced by an object moving through a fluid.ⓘ Total drag force for given required power [F_D]

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Formula

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Total drag force for given required power

Formula

`"F"_{"D"} = "P"/"V"_{"∞"}`

Example

`"100N"="3000W"/"30m/s"`

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Total drag force for given required power Solution

STEP 0: Pre-Calculation Summary

Formula Used

Drag Force = Power/Freestream Velocity
F_D = P/V_∞
This formula uses 3 Variables

Variables Used

Drag Force - (Measured in Newton) - Drag Force is the resisting force experienced by an object moving through a fluid.
Power - (Measured in Watt) - Power is defined as the product of thrust force and velocity of aircraft.
Freestream Velocity - (Measured in Meter per Second) - The Freestream Velocity is the velocity of air far upstream of an aerodynamic body, that is before the body has a chance to deflect, slow down or compress the air.

STEP 1: Convert Input(s) to Base Unit

Power: 3000 Watt --> 3000 Watt No Conversion Required
Freestream Velocity: 30 Meter per Second --> 30 Meter per Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

F_D = P/V_∞ --> 3000/30

Evaluating ... ...

F_D = 100

STEP 3: Convert Result to Output's Unit

100 Newton --> No Conversion Required

FINAL ANSWER

100 Newton <-- Drag Force

(Calculation completed in 00.004 seconds)

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Created by Vinay Mishra

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

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Verified by Maiarutselvan V

PSG College of Technology (PSGCT), Coimbatore

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< 19 Lift and Drag Requirements Calculators

Lift coefficient for given minimum required thrust

Go Lift Coefficient = sqrt(pi*Oswald Efficiency Factor*Aspect Ratio of a wing*((Thrust/(Dynamic Pressure*Area))-Zero Lift Drag Coefficient))

Zero-lift drag coefficient for given lift coefficient

Go Zero Lift Drag Coefficient = (Thrust/(Dynamic Pressure*Area))-((Lift Coefficient^2)/(pi*Oswald Efficiency Factor*Aspect Ratio of a wing))

Zero-lift drag coefficient at minimum required thrust

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

Lift-induced drag coefficient for given required thrust

Go Coefficient Of Drag Due to Lift = (Thrust/(Dynamic Pressure*Reference Area))-Zero Lift Drag Coefficient

Zero-lift drag coefficient for given required thrust

Go Zero Lift Drag Coefficient = (Thrust/(Dynamic Pressure*Reference Area))-Coefficient Of Drag Due to Lift

Lift for Unaccelerated Flight

Go Lift Force = Weight of Body-Thrust*sin(Thrust angle)

Coefficient of Drag for given thrust and weight

Go Drag Coefficient = Thrust*Lift Coefficient/Weight of Body

Coefficient of Lift for given thrust and weight

Go Lift Coefficient = Weight of Body*Drag Coefficient/Thrust

Drag for Level and Unaccelerated Flight at Negligible Thrust Angle

Go Drag Force = Dynamic Pressure*Area*Drag Coefficient

Lift for Level and Unaccelerated Flight at Negligible Thrust Angle

Go Lift Force = Dynamic Pressure*Area*Lift Coefficient

Drag for Level and Unaccelerated Flight

Go Drag Force = Thrust*(cos(Thrust angle))

Coefficient of Drag for given thrust-to-weight ratio

Go Drag Coefficient = Lift Coefficient*Thrust-to-Weight Ratio

Coefficient of Lift for given thrust-to-weight ratio

Go Lift Coefficient = Drag Coefficient/Thrust-to-Weight Ratio

Lift-to-drag ratio for given required thrust of aircraft

Go Lift-to-drag Ratio = Weight of Body/Thrust

Freestream Velocity for given total drag force

Go Freestream Velocity = Power/Drag Force

Total drag force for given required power

Go Drag Force = Power/Freestream Velocity

Freestream velocity for given required power

Go Freestream Velocity = Power/Thrust

Coefficient of Drag due to lift for minimum power required

Go Coefficient Of Drag Due to Lift = 3*Zero Lift Drag Coefficient

Zero-lift drag coefficient for minimum power required

Go Zero Lift Drag Coefficient = Coefficient Of Drag Due to Lift/3

Total drag force for given required power Formula

Drag Force = Power/Freestream Velocity
F_D = P/V_∞

What is Drag?

Drag is the aerodynamic force that opposes an aircraft's motion through the air. Drag is generated by every part of the airplane (even the engines!).

How to Calculate Total drag force for given required power?

Total drag force for given required power calculator uses Drag Force = Power/Freestream Velocity to calculate the Drag Force, The Total drag force for given required power in a steady, level flight is equal to the ratio of required power and freestream velocity. Drag Force is denoted by F_D symbol.

How to calculate Total drag force for given required power using this online calculator? To use this online calculator for Total drag force for given required power, enter Power (P) & Freestream Velocity (V_∞) and hit the calculate button. Here is how the Total drag force for given required power calculation can be explained with given input values -> 5.666667 = power__/30.

FAQ

What is Total drag force for given required power?

The Total drag force for given required power in a steady, level flight is equal to the ratio of required power and freestream velocity and is represented as F_D = P/V_∞ or Drag Force = Power/Freestream Velocity. Power is defined as the product of thrust force and velocity of aircraft & The Freestream Velocity is the velocity of air far upstream of an aerodynamic body, that is before the body has a chance to deflect, slow down or compress the air.

How to calculate Total drag force for given required power?

The Total drag force for given required power in a steady, level flight is equal to the ratio of required power and freestream velocity is calculated using Drag Force = Power/Freestream Velocity. To calculate Total drag force for given required power, you need Power (P) & Freestream Velocity (V_∞). With our tool, you need to enter the respective value for Power & Freestream Velocity 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 Power & Freestream Velocity. We can use 2 other way(s) to calculate the same, which is/are as follows -

Drag Force = Thrust*(cos(Thrust angle))
Drag Force = Dynamic Pressure*Area*Drag Coefficient

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