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Excess power Formula

GoExcess power for given rate of climb Formula

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Excess Power is defined as the difference between the power available and the power required at a particular speed and altitude of aircraft. Check FAQs

P excess = v \cdot (T - F D)

P_excess - Excess Power?v - Velocity?T - Thrust?F_D - Drag Force?

Excess power Example

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Here is how the Excess power equation looks like with Values.

Here is how the Excess power equation looks like with Units.

Here is how the Excess power equation looks like.

37197.6 = 60 \cdot (700 - 80.04)

37197.6W = 60m/s \cdot (700N - 80.04N)

37197.6 = 60 \cdot (700 - 80.04)

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Excess power Solution

Follow our step by step solution on how to calculate Excess power?

FIRST Step Consider the formula

P excess = v \cdot (T - F D)

Next Step Substitute values of Variables

∴

P excess = 60m/s \cdot (700N - 80.04N)

Next Step Prepare to Evaluate

∴

P excess = 60 \cdot (700 - 80.04)

LAST Step Evaluate

∴

P excess = 37197.6W

Excess power Formula Elements

Variables

Excess Power

Excess Power is defined as the difference between the power available and the power required at a particular speed and altitude of aircraft.

Symbol: P_excess

Measurement: PowerUnit: W

Note: Value should be greater than 0.

Formulas to find Excess Power

Velocity

Velocity is a vector quantity (it has both magnitude and direction) and is the rate of change of the position of an object with respect to time.

Symbol: v

Measurement: SpeedUnit: m/s

Note: Value should be greater than 0.

Formulas to find Velocity

Thrust

Thrust denotes the force exerted by the engine to propel an aircraft forward.

Symbol: T

Measurement: ForceUnit: N

Note: Value should be greater than 0.

Formulas to find Thrust

Drag Force

Drag Force is the resisting force experienced by an object moving through a fluid.

Symbol: F_D

Measurement: ForceUnit: N

Note: Value should be greater than 0.

Formulas to find Drag Force

Other Formulas to find Excess Power

Go Excess power for given rate of climb

P excess = RC \cdot W

Other formulas in Climbing Flight category

Go Rate of Climb

RC = v \cdot \sin (γ)

Go Flight path angle at given rate of climb

γ = a \sin (\frac{RC}{v})

Go Velocity of aircraft at given rate of climb

v = \frac{RC}{\sin (γ)}

Go Weight of Aircraft for given Excess Power

W = \frac{P excess}{RC}

How to Evaluate Excess power?

Excess power evaluator uses Excess Power = Velocity*(Thrust-Drag Force) to evaluate the Excess Power, The Excess power refers to the surplus power available to an aircraft beyond what is required to maintain level flight at a specific speed and altitude, it is particularly important during critical phases of flight, such as takeoff, climb, and maneuvering. Excess Power is denoted by P_excess symbol.

How to evaluate Excess power using this online evaluator? To use this online evaluator for Excess power, enter Velocity (v), Thrust (T) & Drag Force (F_D) and hit the calculate button.

FAQs on Excess power

What is the formula to find Excess power?

The formula of Excess power is expressed as Excess Power = Velocity*(Thrust-Drag Force). Here is an example- 37197.6 = 60*(700-80.04).

How to calculate Excess power?

With Velocity (v), Thrust (T) & Drag Force (F_D) we can find Excess power using the formula - Excess Power = Velocity*(Thrust-Drag Force).

What are the other ways to Calculate Excess Power?

Here are the different ways to Calculate Excess Power-

Excess Power=Rate of Climb*Aircraft Weight

Can the Excess power be negative?

No, the Excess power, measured in Power cannot be negative.

Which unit is used to measure Excess power?

Excess power is usually measured using the Watt[W] for Power. Kilowatt[W], Milliwatt[W], Microwatt[W] are the few other units in which Excess power can be measured.

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Excess power Formula

​GoExcess power for given rate of climb Formula

Excess power Example

Excess power Solution

Excess power Formula Elements

Other Formulas to find Excess Power

Other formulas in Climbing Flight category

How to Evaluate Excess power?

FAQs on Excess power

Variable Name

GoExcess power for given rate of climb Formula