Jet engine endurance is the duration an aircraft’s engine can operate continuously on a given amount of fuel. It is determined by the Thrust Specific Fuel Consumption (TSFC), representing fuel efficiency. The formula for endurance involves the natural logarithm of the ratio of initial to final weights. Higher efficiency or reduced aircraft weight contributes to increased endurance. Real-world operational factors may affect actual endurance, but the formula provides a fundamental understanding of the relationship between fuel consumption and aircraft endurance. The formula to calculate Endurance of jet engine as follows:
Where:
- Ct is the Thrust Specific Fuel Consumption in Kg/Ns
- CD is the Drag Coefficient.
- CL is the Lift Coefficient.
- W0 is the Gross Weight in Kg
- W1 is the Weight with out Fuel in kg.