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Fuel Weight given Fuel Fraction Formula

GoFuel Weight given Takeoff Weight Formula

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Fuel Weight to be Carried is defined as the total mass of the fuel to be carried (usually includes reserve fuel). Check FAQs

FW = F f \cdot DTW

FW - Fuel Weight to be Carried?F_f - Fuel Fraction?DTW - Desired Takeoff Weight?

Fuel Weight given Fuel Fraction Example

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Here is how the Fuel Weight given Fuel Fraction equation looks like with Values.

Here is how the Fuel Weight given Fuel Fraction equation looks like with Units.

Here is how the Fuel Weight given Fuel Fraction equation looks like.

100000 = 0.4 \cdot 250000

100000kg = 0.4 \cdot 250000kg

100000 = 0.4 \cdot 250000

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Fuel Weight given Fuel Fraction Solution

Follow our step by step solution on how to calculate Fuel Weight given Fuel Fraction?

FIRST Step Consider the formula

FW = F f \cdot DTW

Next Step Substitute values of Variables

∴

FW = 0.4 \cdot 250000kg

Next Step Prepare to Evaluate

∴

FW = 0.4 \cdot 250000

LAST Step Evaluate

∴

FW = 100000kg

Fuel Weight given Fuel Fraction Formula Elements

Variables

Fuel Weight to be Carried

Fuel Weight to be Carried is defined as the total mass of the fuel to be carried (usually includes reserve fuel).

Symbol: FW

Measurement: WeightUnit: kg

Note: Value can be positive or negative.

Formulas to find Fuel Weight to be Carried

Fuel Fraction

Fuel Fraction is the ratio between weight of fuel caried by a plane to the aircraft total take off weight.

Symbol: F_f

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Fuel Fraction

Desired Takeoff Weight

Desired Takeoff Weight (or mass) is the weight of the aircraft.

Symbol: DTW

Measurement: WeightUnit: kg

Note: Value should be greater than 0.

Formulas to find Desired Takeoff Weight

Other Formulas to find Fuel Weight to be Carried

Go Fuel Weight given Takeoff Weight

FW = DTW - OEW - PYL - W c

Other formulas in Preliminary Design category

Go Preliminary Take Off Weight Built-up for Manned Aircraft

DTW = PYL + OEW + FW + W c

Go Fuel Fraction

F f = \frac{FW}{DTW}

Go Preliminary Take off Weight Built-Up for Manned Aircraft given Fuel and Empty Weight Fraction

DTW = \frac{PYL + W c}{1 - F f - E f}

Go Optimum Range for Jet Aircraft in Cruising Phase

R = \frac{V L/D(max) \cdot LDmax ratio}{c} \cdot \ln (\frac{W i}{W f})

How to Evaluate Fuel Weight given Fuel Fraction?

Fuel Weight given Fuel Fraction evaluator uses Fuel Weight to be Carried = Fuel Fraction*Desired Takeoff Weight to evaluate the Fuel Weight to be Carried, The Fuel Weight given Fuel Fraction formula refers to the weight of the fuel carried by an aircraft at a particular point in time, typically measured at takeoff, during flight, or at landing, by multiplying the fuel fraction by the takeoff weight, you can determine the weight of the fuel carried by the aircraft, this calculation allows you to estimate the fuel weight based on the specified fuel fraction and takeoff weight values. Fuel Weight to be Carried is denoted by FW symbol.

How to evaluate Fuel Weight given Fuel Fraction using this online evaluator? To use this online evaluator for Fuel Weight given Fuel Fraction, enter Fuel Fraction (F_f) & Desired Takeoff Weight (DTW) and hit the calculate button.

FAQs on Fuel Weight given Fuel Fraction

What is the formula to find Fuel Weight given Fuel Fraction?

The formula of Fuel Weight given Fuel Fraction is expressed as Fuel Weight to be Carried = Fuel Fraction*Desired Takeoff Weight. Here is an example- 62500 = 0.4*250000.

How to calculate Fuel Weight given Fuel Fraction?

With Fuel Fraction (F_f) & Desired Takeoff Weight (DTW) we can find Fuel Weight given Fuel Fraction using the formula - Fuel Weight to be Carried = Fuel Fraction*Desired Takeoff Weight.

What are the other ways to Calculate Fuel Weight to be Carried?

Here are the different ways to Calculate Fuel Weight to be Carried-

Fuel Weight to be Carried=Desired Takeoff Weight-Operating Empty Weight-Payload Carried-Crew Weight

Can the Fuel Weight given Fuel Fraction be negative?

Yes, the Fuel Weight given Fuel Fraction, measured in Weight can be negative.

Which unit is used to measure Fuel Weight given Fuel Fraction?

Fuel Weight given Fuel Fraction is usually measured using the Kilogram[kg] for Weight. Gram[kg], Milligram[kg], Ton (Metric)[kg] are the few other units in which Fuel Weight given Fuel Fraction can be measured.

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