3597. Aircraft Weight Estimation In Interactive Design Process

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Title3597. Aircraft Weight Estimation In Interactive Design Process
Publication TypeConference Paper
Paper Number3597
Year of Publication2013
AuthorsAl-Shamma, Omran, and Ali Dr. Rashid
Conference72nd Annual Conference, St. Louis, Missouri
Conference LocationSaint Louis, Missouri
PublisherSociety of Allied Weight Engineers, Inc.
Date Published05/2013
Abstract

Amongst all the design variables employed in aircraft design process, weight is the most significant one. Aircraft performance is dependent on a suitable weight in order for it to carry out its intended mission. In the interactive design process, the weight design engineers usually follow one particular published methodology such as that proposed by Roskam or Torenbeek or etc.
The main drawback of these methodologies is their limited accuracy, especially when applied to the vast variation of civilian aircraft. Furthermore, the non-availability of component- weight data, which may be used in evaluating maximum take-off weight, makes the design process difficult.
A new weight estimation method has been developed and has been applied to interactive design process. In this method many equations of different methodologies are applied to each aircraft component instead of applying one analyst’s methodology. Simultaneously, any formula that has secondary variables, which may not be available in the early stages of aircraft design, is rejected. The equation that gives the lowest average value is selected. The results from the new method shows that the accuracy of the estimated operating empty weight and the maximum take-off weight is better than 5% can be obtained.

Pages11
Key Words11. Weight Engineering - Aircraft Estimation
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