Abstract
The Blended Wing Body (BWB) has been studied as a configuration of next-generation large-scale jet transport. The principal advantages of the BWB configuration are reduction in fuel consumption by improvement of lift-drag ratio and decrease in structural weight. In this study, the optimal number of passengers for the BWB is discussed by designing several BWB aircrafts for different numbers of passengers. Suitable number of passengers is found to be about 400 from the viewpoint of the cabin layout and airport facilities. Then, the BWB and a conventional aircraft have been designed by a conceptual design method under similar design requirements. By comparing the results, drastic reduction in fuel weight was confirmed.
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