This thesis compares attributes of the heavy lift launch vehicle options that are available for the United States to use in support of the Space Exploration Initiative. The systems compared are the Advanced Launch System, Shuttle-C, Saturn V/F-1 and Energia. The F-1 development history is presented along with the proposed development of the ALS and Shuttle-C. Advantages and disadvantages of each of the systems are presented and possible trade-offs between them are discussed. The thesis shows that the option that is most cost effective and can be used to support the deployment of Space Station Freedom is that of developing a booster with a core engine like the F-1. In conclusion, a recommendation is given as to what the best option, with regard to both short and long term mission requirements, is for a new heavy lift launch vehicle for the United States.
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