A "Monte Carlo-like" design analysis tool is developed and applied to an aeromaneuvering Mars entry vehicle. This tool provides realistic but challenging design cases using many fewer cases than a full Monte Carlo analysis. The problem of random input variables that are provided a priori (as opposed to being drawn from a given distribution) is addressed and a solution is found that shows prospects for future improvement. Queen, Eric M. and Striepe, Scott A. and Powell, Richard W. Langley Research Center NASA/TM-2001-211246, L-18125, NAS 1.15:211246