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Propeller efficiency given thrust Formula

GoPropeller Efficiency Formula

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Propeller efficiency is defined as power produced (propeller power) divided by power applied (engine power). Check FAQs

η p = \frac{T prop \cdot V}{S p}

η_p - Propeller Efficiency?T_prop - Propeller Thrust?V - Flight Speed?S_p - Shaft Power?

Propeller efficiency given thrust Example

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Here is how the Propeller efficiency given thrust equation looks like with Values.

Here is how the Propeller efficiency given thrust equation looks like with Units.

Here is how the Propeller efficiency given thrust equation looks like.

0.9401 = \frac{1.21 \cdot 101}{130}

0.9401 = \frac{1.21kN \cdot 101m/s}{130kW}

0.9401 = \frac{1.21 \cdot 101}{130}

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Propeller efficiency given thrust Solution

Follow our step by step solution on how to calculate Propeller efficiency given thrust?

FIRST Step Consider the formula

η p = \frac{T prop \cdot V}{S p}

Next Step Substitute values of Variables

∴

η p = \frac{1.21kN \cdot 101m/s}{130kW}

Next Step Convert Units

∴

η p = \frac{1210N \cdot 101m/s}{130000W}

Next Step Prepare to Evaluate

∴

η p = \frac{1210 \cdot 101}{130000}

Next Step Evaluate

∴

η p = 0.940076923076923

LAST Step Rounding Answer

∴

η p = 0.9401

Propeller efficiency given thrust Formula Elements

Variables

Propeller Efficiency

Propeller efficiency is defined as power produced (propeller power) divided by power applied (engine power).

Symbol: η_p

Measurement: NAUnit: Unitless

Note: Value should be less than 1.

Formulas to find Propeller Efficiency

Propeller Thrust

Propeller Thrust is the force generated by a rotating propeller, driving an aircraft forward.

Symbol: T_prop

Measurement: ForceUnit: kN

Note: Value should be greater than 0.

Formulas to find Propeller Thrust

Flight Speed

Flight Speed is the velocity of the aircraft with which it is moving through air.

Symbol: V

Measurement: SpeedUnit: m/s

Note: Value can be positive or negative.

Formulas to find Flight Speed

Shaft Power

Shaft Power is the mechanical power transmitted from one rotating element of a vehicle, ship, and all types of machinery to another.

Symbol: S_p

Measurement: PowerUnit: kW

Note: Value can be positive or negative.

Formulas to find Shaft Power

Other Formulas to find Propeller Efficiency

Go Propeller Efficiency

η p = \frac{P thrust}{S p}

Other formulas in Turboprops category

Go Total thrust given nozzle thrust and propeller thrust

T = T nozzle + T prop

Go Thermal Efficiency of Propeller Engines

η th = \frac{BP}{m f \cdot Q}

How to Evaluate Propeller efficiency given thrust?

Propeller efficiency given thrust evaluator uses Propeller Efficiency = (Propeller Thrust*Flight Speed)/Shaft Power to evaluate the Propeller Efficiency, The Propeller efficiency given thrust formula is defined as the ratio of product of thrust and aircraft forward speed to the shaft power. Propeller Efficiency is denoted by η_p symbol.

How to evaluate Propeller efficiency given thrust using this online evaluator? To use this online evaluator for Propeller efficiency given thrust, enter Propeller Thrust (T_prop), Flight Speed (V) & Shaft Power (S_p) and hit the calculate button.

FAQs on Propeller efficiency given thrust

What is the formula to find Propeller efficiency given thrust?

The formula of Propeller efficiency given thrust is expressed as Propeller Efficiency = (Propeller Thrust*Flight Speed)/Shaft Power. Here is an example- 0.932308 = (1210*101)/130000.

How to calculate Propeller efficiency given thrust?

With Propeller Thrust (T_prop), Flight Speed (V) & Shaft Power (S_p) we can find Propeller efficiency given thrust using the formula - Propeller Efficiency = (Propeller Thrust*Flight Speed)/Shaft Power.

What are the other ways to Calculate Propeller Efficiency?

Here are the different ways to Calculate Propeller Efficiency-

Propeller Efficiency=Thrust Power/Shaft Power

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