LVThrustToWeight:

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   Compute takeoff thrust to weight ratio for a launch vehicle.
   Accounts for solid boosters using LVCombineSRB.
   Since version 2015.1
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   Form:
   [ratio,time] = LVThrustToWeight( lv )
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   ------
   Inputs
   ------
   lv             (.)    Launch vehicle data structure

   -------
   Outputs
   -------
   ratio         (1,:)   Takeoff thrust to weight ratio per stage
   time          (1,:)   Start time of each stage

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Children:

LaunchVehicle: LVDatabase/RocketDatabase
LaunchVehicle: Utilities/LaunchConstants
LaunchVehicle: VehicleModels/LVCombineSRB