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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=(ηRprop)(CLCD)(ln(W0W1))
c - Specific Fuel Consumption?η - Propeller Efficiency?Rprop - Range of Propeller Aircraft?CL - Lift Coefficient?CD - Drag Coefficient?W0 - Gross Weight?W1 - Weight without Fuel?

Specific Fuel Consumption for given Range of Propeller-Driven Airplane Example

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Here is how the Specific Fuel Consumption for given Range of Propeller-Driven Airplane equation looks like with Values.

Here is how the Specific Fuel Consumption for given Range of Propeller-Driven Airplane equation looks like with Units.

Here is how the Specific Fuel Consumption for given Range of Propeller-Driven Airplane equation looks like.

0.6Edit=(0.93Edit7126.017Edit)(5Edit2Edit)(ln(5000Edit3000Edit))
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Specific Fuel Consumption for given Range of Propeller-Driven Airplane Solution

Follow our step by step solution on how to calculate Specific Fuel Consumption for given Range of Propeller-Driven Airplane?

FIRST Step Consider the formula
c=(ηRprop)(CLCD)(ln(W0W1))
Next Step Substitute values of Variables
c=(0.937126.017m)(52)(ln(5000kg3000kg))
Next Step Prepare to Evaluate
c=(0.937126.017)(52)(ln(50003000))
Next Step Evaluate
c=0.000166666677227395kg/s/W
Next Step Convert to Output's Unit
c=0.600000038018621kg/h/W
LAST Step Rounding Answer
c=0.6kg/h/W

Specific Fuel Consumption for given Range of Propeller-Driven Airplane 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.
Propeller Efficiency
Propeller Efficiency is defined as power produced (propeller power) divided by power applied (engine power).
Symbol: η
Measurement: NAUnit: Unitless
Note: Value should be less than 1.
Range of Propeller Aircraft
Range of Propeller Aircraft is defined as the total distance (measured with respect to ground) traversed by the aircraft on a tank of fuel.
Symbol: Rprop
Measurement: LengthUnit: m
Note: Value should be greater than 0.
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: CL
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Drag Coefficient
Drag Coefficient is a dimensionless quantity that is used to quantify the drag or resistance of an object in a fluid environment, such as air or water.
Symbol: CD
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.
Gross Weight
The Gross Weight of the airplane is the weight with full fuel and payload.
Symbol: W0
Measurement: WeightUnit: kg
Note: Value should be greater than 0.
Weight without Fuel
Weight without Fuel is the total weight of the airplane without fuel.
Symbol: W1
Measurement: WeightUnit: kg
Note: Value should be greater than 0.
ln
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 for given Range and Lift-to-Drag Ratio of Propeller-Driven Airplane
c=(ηRprop)(LD)(ln(W0W1))
​Go Specific Fuel Consumption for given Endurance of Propeller-Driven Airplane
c=ηECL1.5CD2ρS((1W1)12-(1W0)12)

Other formulas in Propeller Driven Airplane category

​Go Range of Propeller-Driven Airplane
Rprop=(ηc)(CLCD)(ln(W0W1))
​Go Propeller Efficiency for given Range of Propeller-Driven Airplane
η=RpropcCDCLln(W0W1)

How to Evaluate Specific Fuel Consumption for given Range of Propeller-Driven Airplane?

Specific Fuel Consumption for given Range of Propeller-Driven Airplane evaluator uses Specific Fuel Consumption = (Propeller Efficiency/Range of Propeller Aircraft)*(Lift Coefficient/Drag Coefficient)*(ln(Gross Weight/Weight without Fuel)) to evaluate the Specific Fuel Consumption, Specific Fuel Consumption for given Range of Propeller-Driven Airplane is a measure of the amount of fuel consumed by an aircraft in relation to its weight and range, considering factors such as propeller efficiency, lift coefficient, and drag coefficient, to optimize flight performance and fuel efficiency. Specific Fuel Consumption is denoted by c symbol.

How to evaluate Specific Fuel Consumption for given Range of Propeller-Driven Airplane using this online evaluator? To use this online evaluator for Specific Fuel Consumption for given Range of Propeller-Driven Airplane, enter Propeller Efficiency (η), Range of Propeller Aircraft (Rprop), Lift Coefficient (CL), Drag Coefficient (CD), Gross Weight (W0) & Weight without Fuel (W1) and hit the calculate button.

FAQs on Specific Fuel Consumption for given Range of Propeller-Driven Airplane

What is the formula to find Specific Fuel Consumption for given Range of Propeller-Driven Airplane?
The formula of Specific Fuel Consumption for given Range of Propeller-Driven Airplane is expressed as Specific Fuel Consumption = (Propeller Efficiency/Range of Propeller Aircraft)*(Lift Coefficient/Drag Coefficient)*(ln(Gross Weight/Weight without Fuel)). Here is an example- 2160.005 = (0.93/7126.017)*(5/2)*(ln(5000/3000)).
How to calculate Specific Fuel Consumption for given Range of Propeller-Driven Airplane?
With Propeller Efficiency (η), Range of Propeller Aircraft (Rprop), Lift Coefficient (CL), Drag Coefficient (CD), Gross Weight (W0) & Weight without Fuel (W1) we can find Specific Fuel Consumption for given Range of Propeller-Driven Airplane using the formula - Specific Fuel Consumption = (Propeller Efficiency/Range of Propeller Aircraft)*(Lift Coefficient/Drag Coefficient)*(ln(Gross Weight/Weight without Fuel)). 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=(Propeller Efficiency/Range of Propeller Aircraft)*(Lift-to-Drag Ratio)*(ln(Gross Weight/Weight without Fuel))OpenImg
  • Specific Fuel Consumption=Propeller Efficiency/Endurance of Aircraft*Lift Coefficient^1.5/Drag Coefficient*sqrt(2*Freestream Density*Reference Area)*((1/Weight without Fuel)^(1/2)-(1/Gross Weight)^(1/2))OpenImg
  • Specific Fuel Consumption=(Propeller Efficiency*Maximum Lift-to-Drag Ratio*ln(Weight at Start of Cruise Phase/Weight at End of Cruise Phase))/Range of Propeller AircraftOpenImg
Can the Specific Fuel Consumption for given Range of Propeller-Driven Airplane be negative?
No, the Specific Fuel Consumption for given Range of Propeller-Driven Airplane, measured in Specific Fuel Consumption cannot be negative.
Which unit is used to measure Specific Fuel Consumption for given Range of Propeller-Driven Airplane?
Specific Fuel Consumption for given Range of Propeller-Driven Airplane 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 for given Range of Propeller-Driven Airplane can be measured.
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