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Parametric study on the turbojet engines used in modern-day aircraft. The parameter selected for the study was the Distance between the intake holes present in the combustion tube or “flame tube,” and its effect was observed on the jet’s thrust force and thrust force/Kg. This study is entirely research-based. A density study in the combustion tube is done using a CFD solver for validating the assumptions. The changes in the density directly or indirectly define all the properties necessary for change in the thrust values. The relation is based on the accuracy of the model and the simulation. Hence, proper modeling and fine meshing have been done to obtain accurate results. The main objective of this study is to predict a relationship between the thrust force per kg of fuel to the distances between the primary and secondary holes in a flame tube.