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1. Problem formulation
This section presents the models used for a launcher staging study. Although simplified, these models are sufficiently representative for the preliminary design phase. More complex models are used in later design phases to refine the performance evaluation.
1.1 Launcher modeling
The launcher consists of several propellant stages and carries a payload of mass m u to orbit. Each stage has a propellant mass m e and a dry mass m s . The total masses of the launcher at ignition and shutdown of stage number j are noted respectively M i,j and M f,j ...
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Problem formulation
Impulse method
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