CreateRocketModel:

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   Create a rocket model from individual fields.
   Specify whether each stage is liquid or solid using 'type'.
   Since version 2015.1
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   Form:
   d = CreateRocketModel( mStructure, mFuel, thrust, Isp, name, type )
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   ------
   Inputs
   ------
   mStructure    (1,n)    Structural mass of stages
   mFuel         (1,n)    Fuel mass (kg)
   thrust        (1,n)    Thrust (kN)
   Isp           (1,n)    Specific impulse (s)
   name          (1,:)    Name of vehicle
   type          (1,n)    Fuel type: 'l' or 's'

   -------
   Outputs
   -------
   d             (.)      Rocket data structure

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Children:

Common: Database/Constant
LaunchVehicle: MultiStage/MSData