This test case is based on the Commercial Turbofan Template structure, weight distributions, and manufacturing complexities. All hardware objects are scaled to the weight of the GE 90-115B. No changes are made to the software objects of the template. This example uses production schedule dates and quantities of the GE 90-115B program. No attempt has been made to differentiate among the various models of the GE 90-115B nor has any attempt been made to simulate the mutilple production lots of the program. Therefore, this example should be viewed as an illustration of how the commercial turbofan template can be used to produce a rough cost estimate of a known turbofan program.