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Tail Efficiency for given lift coefficients Formula

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Tail Efficiency is defined as the ratio of dynamic pressure associated with the tail to dynamic pressure associated with an aircraft's wing. Check FAQs

η = S \cdot \frac{C L - CW lift}{CT lift \cdot S t}

η - Tail Efficiency?S - Reference Area?C_L - Lift Coefficient?CW_lift - Wing Lift Coefficient?CT_lift - Tail Lift Coefficient?S_t - Horizontal Tail Area?

Tail Efficiency for given lift coefficients Example

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Here is how the Tail Efficiency for given lift coefficients equation looks like with Values.

Here is how the Tail Efficiency for given lift coefficients equation looks like with Units.

Here is how the Tail Efficiency for given lift coefficients equation looks like.

0.9219 = 5.08 \cdot \frac{1.108 - 1.01}{0.3 \cdot 1.8}

0.9219 = 5.08m² \cdot \frac{1.108 - 1.01}{0.3 \cdot 1.8m²}

0.9219 = 5.08 \cdot \frac{1.108 - 1.01}{0.3 \cdot 1.8}

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Tail Efficiency for given lift coefficients Solution

Follow our step by step solution on how to calculate Tail Efficiency for given lift coefficients?

FIRST Step Consider the formula

η = S \cdot \frac{C L - CW lift}{CT lift \cdot S t}

Next Step Substitute values of Variables

∴

η = 5.08m² \cdot \frac{1.108 - 1.01}{0.3 \cdot 1.8m²}

Next Step Prepare to Evaluate

∴

η = 5.08 \cdot \frac{1.108 - 1.01}{0.3 \cdot 1.8}

Next Step Evaluate

∴

η = 0.921925925925927

LAST Step Rounding Answer

∴

η = 0.9219

Tail Efficiency for given lift coefficients Formula Elements

Variables

Tail Efficiency

Tail Efficiency is defined as the ratio of dynamic pressure associated with the tail to dynamic pressure associated with an aircraft's wing.

Symbol: η

Measurement: NAUnit: Unitless

Note: Value should be between 0.8 to 1.2.

Formulas to find Tail Efficiency

Reference Area

The Reference Area is arbitrarily an area that is characteristic of the object being considered. For an aircraft wing, the wing's planform area is called the reference wing area or simply wing area.

Symbol: S

Measurement: AreaUnit: m²

Note: Value should be greater than 0.

Formulas to find Reference Area

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.

Symbol: C_L

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Lift Coefficient

Wing Lift Coefficient

Wing Lift Coefficient is the lift coefficient associated with the wing (only) of an aircraft. It is a dimensionless quantity.

Symbol: CW_lift

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Wing Lift Coefficient

Tail Lift Coefficient

Tail Lift Coefficient is the lift coefficient associated with the tail (only) of an aircraft. It is a dimensionless quantity.

Symbol: CT_lift

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Tail Lift Coefficient

Horizontal Tail Area

The Horizontal Tail Area is the surface area of the horizontal stabilizer on an aircraft, which provides pitch stability and control.

Symbol: S_t

Measurement: AreaUnit: m²

Note: Value should be greater than 0.

Formulas to find Horizontal Tail Area

Other formulas in Wing Tail Contribution category

Go Angle of Attack at Tail

α t = α w - 𝒊 w - ε + 𝒊 t

Go Angle of Attack of Wing

α w = α t + 𝒊 w + ε - 𝒊 t

Go Angle of incidence of wing

𝒊 w = α w - α t - ε + 𝒊 t

Go Downwash angle

ε = α w - 𝒊 w - α t + 𝒊 t

How to Evaluate Tail Efficiency for given lift coefficients?

Tail Efficiency for given lift coefficients evaluator uses Tail Efficiency = Reference Area*(Lift Coefficient-Wing Lift Coefficient)/(Tail Lift Coefficient*Horizontal Tail Area) to evaluate the Tail Efficiency, Tail Efficiency for given Lift Coefficients is a measure of the proportion of the total lift provided by the tail section of an aircraft, considering the reference area, lift coefficients of the tail and wing, and horizontal tail area. Tail Efficiency is denoted by η symbol.

How to evaluate Tail Efficiency for given lift coefficients using this online evaluator? To use this online evaluator for Tail Efficiency for given lift coefficients, enter Reference Area (S), Lift Coefficient (C_L), Wing Lift Coefficient (CW_lift), Tail Lift Coefficient (CT_lift) & Horizontal Tail Area (S_t) and hit the calculate button.

FAQs on Tail Efficiency for given lift coefficients

What is the formula to find Tail Efficiency for given lift coefficients?

The formula of Tail Efficiency for given lift coefficients is expressed as Tail Efficiency = Reference Area*(Lift Coefficient-Wing Lift Coefficient)/(Tail Lift Coefficient*Horizontal Tail Area). Here is an example- 0.921926 = 5.08*(1.108-1.01)/(0.3*1.8).

How to calculate Tail Efficiency for given lift coefficients?

With Reference Area (S), Lift Coefficient (C_L), Wing Lift Coefficient (CW_lift), Tail Lift Coefficient (CT_lift) & Horizontal Tail Area (S_t) we can find Tail Efficiency for given lift coefficients using the formula - Tail Efficiency = Reference Area*(Lift Coefficient-Wing Lift Coefficient)/(Tail Lift Coefficient*Horizontal Tail Area).

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Tail Efficiency for given lift coefficients Formula

Tail Efficiency for given lift coefficients Example

Tail Efficiency for given lift coefficients Solution

Tail Efficiency for given lift coefficients Formula Elements

Other formulas in Wing Tail Contribution category

How to Evaluate Tail Efficiency for given lift coefficients?

FAQs on Tail Efficiency for given lift coefficients

Variable Name