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

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Aircraft Performance

Aircraft Design

Introduction and Governing Equations

Static Stability and Control

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Propeller-Driven Airplane

✖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.ⓘ Lift Coefficient [C_L]			+10% -10%
✖The Gross Weight of the airplane is the weight with full fuel and payload.ⓘ Gross Weight [W₀]			+10% -10%
✖Weight without fuel is the total weight of the airplane without fuel.ⓘ Weight without fuel [W₁]			+10% -10%
✖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.ⓘ Drag Coefficient [C_D]			+10% -10%
✖Endurance of aircraft is the maximum length of time that an aircraft can spend in cruising flight.ⓘ Endurance of Aircraft [E]			+10% -10%

✖Thrust-specific fuel consumption (TSFC) is the fuel efficiency of an engine design with respect to thrust output.ⓘ Thrust-Specific Fuel Consumption for given Endurance of Jet Airplane [c_t]

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Formula

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Thrust-Specific Fuel Consumption for given Endurance of Jet Airplane

Formula

`"c"_{"t"} = "C"_{"L"}*(ln("W"_{"0"}/"W"_{"1"}))/("C"_{"D"}*"E")`

Example

`"10.1517kg/h/N"="5"*(ln("5000kg"/"3000kg"))/("2"*"452.873s")`

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

STEP 0: Pre-Calculation Summary

Formula Used

Thrust-Specific Fuel Consumption = Lift Coefficient*(ln(Gross Weight/Weight without fuel))/(Drag Coefficient*Endurance of Aircraft)
c_t = C_L*(ln(W₀/W₁))/(C_D*E)
This formula uses 1 Functions, 6 Variables

Functions Used

ln - The natural logarithm, also known as the logarithm to the base e, is the inverse function of the natural exponential function., ln(Number)

Variables Used

Thrust-Specific Fuel Consumption - (Measured in Kilogram per Second per Newton) - Thrust-specific fuel consumption (TSFC) is the fuel efficiency of an engine design with respect to thrust output.
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.
Gross Weight - (Measured in Kilogram) - The Gross Weight of the airplane is the weight with full fuel and payload.
Weight without fuel - (Measured in Kilogram) - Weight without fuel is the total weight of the airplane without fuel.
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.
Endurance of Aircraft - (Measured in Second) - Endurance of aircraft is the maximum length of time that an aircraft can spend in cruising flight.

STEP 1: Convert Input(s) to Base Unit

Lift Coefficient: 5 --> No Conversion Required
Gross Weight: 5000 Kilogram --> 5000 Kilogram No Conversion Required
Weight without fuel: 3000 Kilogram --> 3000 Kilogram No Conversion Required
Drag Coefficient: 2 --> No Conversion Required
Endurance of Aircraft: 452.873 Second --> 452.873 Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

c_t = C_L*(ln(W₀/W₁))/(C_D*E) --> 5*(ln(5000/3000))/(2*452.873)

Evaluating ... ...

c_t = 0.00281991653159932

STEP 3: Convert Result to Output's Unit

0.00281991653159932 Kilogram per Second per Newton -->10.1516995137575 Kilogram per Hour per Newton (Check conversion here)

FINAL ANSWER

10.1516995137575 ≈ 10.1517 Kilogram per Hour per Newton <-- Thrust-Specific Fuel Consumption

(Calculation completed in 00.004 seconds)

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Home » Physics » Aircraft Mechanics » Aircraft Performance » Range and Endurance » Jet Airplane » Thrust-Specific Fuel Consumption for given Endurance of Jet Airplane

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Created by Vinay Mishra

Indian Institute for Aeronautical Engineering and Information Technology (IIAEIT), Pune

Vinay Mishra has created this Calculator and 300+ more calculators!

Verified by Sai Venkata Phanindra Chary Arendra

Vallurupalli Nageswara Rao Vignana Jyothi Institute of Engineering and Technology (VNRVJIET), Hyderabad

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< 18 Jet Airplane Calculators

Thrust-Specific Fuel Consumption for given Range of Jet Airplane

Go Thrust-Specific Fuel Consumption = (sqrt(8/(Freestream density*Reference Area)))*(1/(Range of aircraft*Drag Coefficient))*(sqrt(Lift Coefficient))*((sqrt(Gross Weight))-(sqrt(Weight without fuel)))

Range of Jet Airplane

Go Range of aircraft = (sqrt(8/(Freestream density*Reference Area)))*(1/(Thrust-Specific Fuel Consumption*Drag Coefficient))*(sqrt(Lift Coefficient))*((sqrt(Gross Weight))-(sqrt(Weight without fuel)))

Maximum Lift to Drag Ratio given Range for Jet Aircraft

Go Maximum Lift to Drag Ratio = (Range of aircraft*Specific Fuel Consumption)/(Velocity at Maximum Lift to Drag Ratio*ln(Weight at Start of Cruise Phase/Weight at End of Cruise Phase))

Specific Fuel Consumption given Range for Jet Aircraft

Go 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 aircraft

Breguet Range

Go Range of aircraft = (Lift-to-drag ratio*Flight Velocity*ln(Initial Weight/Final Weight))/([g]*Thrust-Specific Fuel Consumption)

Breguet Endurance Equation

Go Endurance of Aircraft = (1/Thrust-Specific Fuel Consumption)*(Lift Coefficient/Drag Coefficient)*ln(Gross Weight/Weight without fuel)

Thrust-Specific Fuel Consumption for given Endurance of Jet Airplane

Go Thrust-Specific Fuel Consumption = Lift Coefficient*(ln(Gross Weight/Weight without fuel))/(Drag Coefficient*Endurance of Aircraft)

Endurance of Jet Airplane

Go Endurance of Aircraft = Lift Coefficient*(ln(Gross Weight/Weight without fuel))/(Drag Coefficient*Thrust-Specific Fuel Consumption)

Cruise Weight Fraction for Jet Aircraft

Go Cruise Weight Fraction = exp((Range of aircraft*Specific Fuel Consumption*(-1))/(0.866*1.32*Velocity at Maximum Lift to Drag Ratio*Maximum Lift to Drag Ratio))

Constant Speed Cruise using Range Equation

Go Range of aircraft = Flight Velocity/(Thrust-Specific Fuel Consumption*Total Thrust)*int(1,x,Weight without fuel,Gross Weight)

Lift-to-Drag ratio for given Range of Propeller-Driven Airplane

Go Lift-to-drag ratio = Specific Fuel Consumption*Range of aircraft/(Propeller Efficiency*ln(Gross Weight/Weight without fuel))

Maximum Lift to Drag Ratio given Preliminary Endurance for Jet Aircraft

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

Specific Fuel Consumption given Preliminary Endurance for Jet Aircraft

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

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

Go Thrust-Specific Fuel Consumption = (1/Endurance of Aircraft)*Lift-to-drag ratio*ln(Gross Weight/Weight without fuel)

Endurance for given Lift-to-Drag ratio of Jet Airplane

Go Endurance of Aircraft = (1/Thrust-Specific Fuel Consumption)*Lift-to-drag ratio*ln(Gross Weight/Weight without fuel)

Lift-to-Drag ratio for given Endurance of Jet Airplane

Go Lift-to-drag ratio = Thrust-Specific Fuel Consumption*Endurance of Aircraft/(ln(Gross Weight/Weight without fuel))

Loiter Weight Fraction for Jet Aircraft

Go Loiter weight Fraction for Jet aircraft = exp(((-1)*Endurance of Aircraft*Specific Fuel Consumption)/Maximum Lift to Drag Ratio)

Average Value Range Equation

Go Average Value Range Equation = Weight/(Thrust-Specific Fuel Consumption*(Drag Force/Flight Velocity))

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

Thrust-Specific Fuel Consumption = Lift Coefficient*(ln(Gross Weight/Weight without fuel))/(Drag Coefficient*Endurance of Aircraft)
c_t = C_L*(ln(W₀/W₁))/(C_D*E)

How is specific fuel consumption related to exhaust speed?

Specific fuel consumption of air-breathing jet engines at their maximum efficiency is more or less proportional to exhaust speed.

How to Calculate Thrust-Specific Fuel Consumption for given Endurance of Jet Airplane?

Thrust-Specific Fuel Consumption for given Endurance of Jet Airplane calculator uses Thrust-Specific Fuel Consumption = Lift Coefficient*(ln(Gross Weight/Weight without fuel))/(Drag Coefficient*Endurance of Aircraft) to calculate the Thrust-Specific Fuel Consumption, The Thrust-Specific Fuel Consumption for given Endurance of Jet Airplane is a function of fuel weight & aerodynamic coefficients of lift and drag. Thrust-Specific Fuel Consumption is denoted by c_t symbol.

How to calculate Thrust-Specific Fuel Consumption for given Endurance of Jet Airplane using this online calculator? To use this online calculator for Thrust-Specific Fuel Consumption for given Endurance of Jet Airplane, enter Lift Coefficient (C_L), Gross Weight (W₀), Weight without fuel (W₁), Drag Coefficient (C_D) & Endurance of Aircraft (E) and hit the calculate button. Here is how the Thrust-Specific Fuel Consumption for given Endurance of Jet Airplane calculation can be explained with given input values -> 36546.12 = 5*(ln(5000/3000))/(2*452.873).

FAQ

What is Thrust-Specific Fuel Consumption for given Endurance of Jet Airplane?

The Thrust-Specific Fuel Consumption for given Endurance of Jet Airplane is a function of fuel weight & aerodynamic coefficients of lift and drag and is represented as c_t = C_L*(ln(W₀/W₁))/(C_D*E) or Thrust-Specific Fuel Consumption = Lift Coefficient*(ln(Gross Weight/Weight without fuel))/(Drag Coefficient*Endurance of Aircraft). 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, The Gross Weight of the airplane is the weight with full fuel and payload, Weight without fuel is the total weight of the airplane without fuel, 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 & Endurance of aircraft is the maximum length of time that an aircraft can spend in cruising flight.

How to calculate Thrust-Specific Fuel Consumption for given Endurance of Jet Airplane?

The Thrust-Specific Fuel Consumption for given Endurance of Jet Airplane is a function of fuel weight & aerodynamic coefficients of lift and drag is calculated using Thrust-Specific Fuel Consumption = Lift Coefficient*(ln(Gross Weight/Weight without fuel))/(Drag Coefficient*Endurance of Aircraft). To calculate Thrust-Specific Fuel Consumption for given Endurance of Jet Airplane, you need Lift Coefficient (C_L), Gross Weight (W₀), Weight without fuel (W₁), Drag Coefficient (C_D) & Endurance of Aircraft (E). With our tool, you need to enter the respective value for Lift Coefficient, Gross Weight, Weight without fuel, Drag Coefficient & Endurance of Aircraft and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Thrust-Specific Fuel Consumption?

In this formula, Thrust-Specific Fuel Consumption uses Lift Coefficient, Gross Weight, Weight without fuel, Drag Coefficient & Endurance of Aircraft. We can use 2 other way(s) to calculate the same, which is/are as follows -

Thrust-Specific Fuel Consumption = (1/Endurance of Aircraft)*Lift-to-drag ratio*ln(Gross Weight/Weight without fuel)
Thrust-Specific Fuel Consumption = (sqrt(8/(Freestream density*Reference Area)))*(1/(Range of aircraft*Drag Coefficient))*(sqrt(Lift Coefficient))*((sqrt(Gross Weight))-(sqrt(Weight without fuel)))

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