This test case is based on the Space Systems Template (Planetary) 881C structure, weight distributions, and manufacturing complexities. All hardware objects are scaled to the weight of Voyager. No changes are made to the software objects of the template. This example uses the schedule dates of the Voyager program. Aside from accounting for two spacecraft, no other attempt has been made to simulate the Voyager design heritage or quantities of spares, prototypes, and production units. Therefore, this example should be viewed as an illustration of how the space system template can be used to produce a rough cost estimate of a known space program.