The PRICE Commercial Turbofan template is constructed to the Work Breakdown Structure defined by research conducted by the PRICE cost research team. It is populated with input values representative of turbofan engine hardware and operating specifications. The values are based upon the acquired PRICE Systems, LLC knowledge and data pertinent to specific turbofan engines. That knowledge and data have been reduced to a single template, reduction accomplished through averaging and like statistical practices. This template can be used to create examples (called Template Test Cases) to illustrate Rough Order of Magnitude (ROM) estimating of specific turbofan engines. However, PRICE templates are only intended as solid starting points for quality estimation. They require a degree of tailoring and adjustment to meet a specific instance for use. This could be due to differences in production units, prototypes, production schedules, architectures, weight distributions, and design heritage aspects between the template and test case.