Unit cost estimation methodology for commercial aircraft

The development of a new flexible design-oriented, unit cost methodology for large commercial jet aircraft with a seating capacity of more than 100 passengers is presented. The method is based on actual technical and cost data and incorporates cost estimation relationships derived from a thorough statistical and regression analysis filtered according to established engineering criteria. The selected models are implemented into a computer program, which provides quick, flexible, and accurate cost estimations, sensitivity analysis, and cost comparisons. The methodology's validity is tested by applying it to new aircraft, which are not included in the initial sample. The quantitative approach is focused on by analyzing and comparing these results in detail.