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Design program algorithm. Serial staging
Earth to LEO:
try one stage. Use Isp=301, ε list. Solve for mp and Z using the optimization algorithm for one stage.
try 2 stages. Use Isp=[301 316] , ε list. Solve for mp and Z using optimization algorithm for two stages.
try 3 stages. Use Isp=[301 316 316 ] , ε list. Solve for mp and Z using optimization algorithm for three stages.
How much reduction in total mp we obtained from going from one stage to 2 stages? Is reduction worthwhile? (> 5-10% ?) If so, then ask the same question for going from 2 stages to 3 stages. Based on this, select the number of stages.
Result of the design are shown next.
Notes: