FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Specific Fuel Consumption given Range for Jet Aircraft Formula

GoSpecific Fuel Consumption given Preliminary Endurance for Jet Aircraft Formula

Fx Copy

LaTeX Copy

Specific Fuel Consumption is a characteristic of the engine and defined as the weight of fuel consumed per unit power per unit time. Check FAQs

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

c - Specific Fuel Consumption?V_L/D,max - Velocity at Maximum Lift to Drag Ratio?LDmax_ratio - Maximum Lift-to-Drag Ratio?W_i - Weight at Start of Cruise Phase?W_f - Weight at End of Cruise Phase?R_jet - Range of Jet Aircraft?

Specific Fuel Consumption given Range for Jet Aircraft Example

With values

With units

Only example

Here is how the Specific Fuel Consumption given Range for Jet Aircraft equation looks like with Values.

Here is how the Specific Fuel Consumption given Range for Jet Aircraft equation looks like with Units.

Here is how the Specific Fuel Consumption given Range for Jet Aircraft equation looks like.

0.677 = \frac{1.05 \cdot 5.0815 \cdot \ln (\frac{450}{350})}{7130}

0.677kg/h/W = \frac{1.05m/s \cdot 5.0815 \cdot \ln (\frac{450kg}{350kg})}{7130m}

0.677 = \frac{1.05 \cdot 5.0815 \cdot \ln (\frac{450}{350})}{7130}

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Physics » Category

Aerospace » Category

Aircraft Mechanics » fx Specific Fuel Consumption given Range for Jet Aircraft

Specific Fuel Consumption given Range for Jet Aircraft Solution

Follow our step by step solution on how to calculate Specific Fuel Consumption given Range for Jet Aircraft?

FIRST Step Consider the formula

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

Next Step Substitute values of Variables

∴

c = \frac{1.05m/s \cdot 5.0815 \cdot \ln (\frac{450kg}{350kg})}{7130m}

Next Step Prepare to Evaluate

∴

c = \frac{1.05 \cdot 5.0815 \cdot \ln (\frac{450}{350})}{7130}

Next Step Evaluate

∴

c = 0.000188066494451464kg/s/W

Next Step Convert to Output's Unit

∴

c = 0.67703938002527kg/h/W

LAST Step Rounding Answer

∴

c = 0.677kg/h/W

Specific Fuel Consumption given Range for Jet Aircraft Formula Elements

Variables

Functions

Specific Fuel Consumption

Specific Fuel Consumption is a characteristic of the engine and defined as the weight of fuel consumed per unit power per unit time.

Symbol: c

Measurement: Specific Fuel ConsumptionUnit: kg/h/W

Note: Value should be greater than 0.

Formulas to find Specific Fuel Consumption

Velocity at Maximum Lift to Drag Ratio

Velocity at Maximum Lift to Drag Ratio is the velocity when the ratio of lift and drag coefficient is maximum in value. Basically considered for the cruise phase.

Symbol: V_L/D,max

Measurement: SpeedUnit: m/s

Note: Value should be greater than 0.

Formulas to find Velocity at Maximum Lift to Drag Ratio

Maximum Lift-to-Drag Ratio

The Maximum Lift-to-Drag Ratio is the highest ratio of lift force to drag force that an aircraft can achieve.

Symbol: LDmax_ratio

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Maximum Lift-to-Drag Ratio

Weight at Start of Cruise Phase

Weight at Start of Cruise Phase is the weight of the plane just before going to cruise phase of the mission.

Symbol: W_i

Measurement: WeightUnit: kg

Note: Value should be greater than 0.

Formulas to find Weight at Start of Cruise Phase

Weight at End of Cruise Phase

Weight at End of Cruise Phase is the weight before the loitering/descent/action phase of the mission plan.

Symbol: W_f

Measurement: WeightUnit: kg

Note: Value should be greater than 0.

Formulas to find Weight at End of Cruise Phase

Range of Jet Aircraft

Range of Jet Aircraft is defined as the total distance (measured with respect to ground) traversed by the aircraft on a tank of fuel.

Symbol: R_jet

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Range of Jet Aircraft

The natural logarithm, also known as the logarithm to the base e, is the inverse function of the natural exponential function.

Syntax: ln(Number)

Other Formulas to find Specific Fuel Consumption

Go Specific Fuel Consumption given Preliminary Endurance for Jet Aircraft

c = \frac{LDmax ratio \cdot \ln (\frac{W L,beg}{W L,end})}{E}

Other formulas in Jet Airplane category

Go Endurance of Jet Airplane

E = C L \cdot \frac{\ln (\frac{W 0}{W 1})}{C D \cdot c t}

Go Thrust-Specific Fuel Consumption for given Endurance of Jet Airplane

c t = C L \cdot \frac{\ln (\frac{W 0}{W 1})}{C D \cdot E}

Go Endurance for given Lift-to-Drag Ratio of Jet Airplane

E = (\frac{1}{c t}) \cdot LD \cdot \ln (\frac{W 0}{W 1})

Go Thrust-Specific Fuel Consumption for given Endurance and Lift-to-Drag Ratio of Jet Airplane

c t = (\frac{1}{E}) \cdot LD \cdot \ln (\frac{W 0}{W 1})

How to Evaluate Specific Fuel Consumption given Range for Jet Aircraft?

Specific Fuel Consumption given Range for Jet Aircraft evaluator uses Specific Fuel Consumption = (Velocity at Maximum Lift to Drag Ratio*Maximum Lift-to-Drag Ratio*ln(Weight at Start of Cruise Phase/Weight at End of Cruise Phase))/Range of Jet Aircraft to evaluate the Specific Fuel Consumption, Specific Fuel Consumption given Range for Jet Aircraft is a measure of the fuel efficiency of a jet aircraft, calculated as the ratio of the maximum lift-to-drag ratio at the end of the range, the natural logarithm of the ratio of the beginning and ending aircraft weights, and the range of the jet aircraft, providing a valuable indicator of an aircraft's performance and efficiency. Specific Fuel Consumption is denoted by c symbol.

How to evaluate Specific Fuel Consumption given Range for Jet Aircraft using this online evaluator? To use this online evaluator for Specific Fuel Consumption given Range for Jet Aircraft, enter Velocity at Maximum Lift to Drag Ratio (V_L/D,max), Maximum Lift-to-Drag Ratio (LDmax_ratio), Weight at Start of Cruise Phase (W_i), Weight at End of Cruise Phase (W_f) & Range of Jet Aircraft (R_jet) and hit the calculate button.

FAQs on Specific Fuel Consumption given Range for Jet Aircraft

What is the formula to find Specific Fuel Consumption given Range for Jet Aircraft?

The formula of Specific Fuel Consumption given Range for Jet Aircraft is expressed as Specific Fuel Consumption = (Velocity at Maximum Lift to Drag Ratio*Maximum Lift-to-Drag Ratio*ln(Weight at Start of Cruise Phase/Weight at End of Cruise Phase))/Range of Jet Aircraft. Here is an example- 2437.089 = (1.05*5.081527*ln(450/350))/7130.

How to calculate Specific Fuel Consumption given Range for Jet Aircraft?

With Velocity at Maximum Lift to Drag Ratio (V_L/D,max), Maximum Lift-to-Drag Ratio (LDmax_ratio), Weight at Start of Cruise Phase (W_i), Weight at End of Cruise Phase (W_f) & Range of Jet Aircraft (R_jet) we can find Specific Fuel Consumption given Range for Jet Aircraft using the formula - Specific Fuel Consumption = (Velocity at Maximum Lift to Drag Ratio*Maximum Lift-to-Drag Ratio*ln(Weight at Start of Cruise Phase/Weight at End of Cruise Phase))/Range of Jet Aircraft. This formula also uses Natural Logarithm (ln) function(s).

What are the other ways to Calculate Specific Fuel Consumption?

Here are the different ways to Calculate Specific Fuel Consumption-

Specific Fuel Consumption=(Maximum Lift-to-Drag Ratio*ln(Weight at Start of Loiter Phase/Weight at End of Loiter Phase))/Endurance of Aircraft

Can the Specific Fuel Consumption given Range for Jet Aircraft be negative?

No, the Specific Fuel Consumption given Range for Jet Aircraft, measured in Specific Fuel Consumption cannot be negative.

Which unit is used to measure Specific Fuel Consumption given Range for Jet Aircraft?

Specific Fuel Consumption given Range for Jet Aircraft is usually measured using the Kilogram per Hour per Watt[kg/h/W] for Specific Fuel Consumption. Kilogram per Second per Watt[kg/h/W], Kilogram per Second per Brake horsepower[kg/h/W], Kilogram per Hour per Kilowatt[kg/h/W] are the few other units in which Specific Fuel Consumption given Range for Jet Aircraft can be measured.

Let Others Know

✖

Facebook

Twitter

Copied!

Specific Fuel Consumption given Range for Jet Aircraft Formula

​GoSpecific Fuel Consumption given Preliminary Endurance for Jet Aircraft Formula

Specific Fuel Consumption given Range for Jet Aircraft Example

Specific Fuel Consumption given Range for Jet Aircraft Solution

Specific Fuel Consumption given Range for Jet Aircraft Formula Elements

Other Formulas to find Specific Fuel Consumption

Other formulas in Jet Airplane category

How to Evaluate Specific Fuel Consumption given Range for Jet Aircraft?

FAQs on Specific Fuel Consumption given Range for Jet Aircraft

Variable Name

GoSpecific Fuel Consumption given Preliminary Endurance for Jet Aircraft Formula