1024. A Parametric Analysis of Transport Aircraft System Weights and Costs
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Paper
Abstract
In determining unit and operating costs for advanced aircraft,it has been found that by having
first-order weight and performance approximations for the aircraft systems and structural components,
a step increase in cost prediction accuracy results. This paper presents first-order approximation
equations for these systems and components. These equations were developed from data for most current
jet transports,and they have been ordered to use a minimum number of performance parameters such as
aircraft style, number of passengers, empty and gross weight, cargo load, and operating range. A
NASA Ames Research Center aircraft cost program has been used to compare calculated and actual
weights for the same aircraft. Good aircraft cost correlation is shown to exist between calculated
first-order and actual aircraft weight data.
