The benefits are assessed of span distributed loading concepts as applied to future commercial air cargo operations. A two phased program is used to perform this assessment. The first phase consists of selected parametric studies to define significant configuration, performance, and economic trends. The second phase consists of more detailed engineering design, analysis, and economic evaluations to define the technical and economic feasibility of a selected spanloader design. A conventional all-cargo aircraft of comparable technology and size is used as a comparator system. The technical feasibility is demonstrated of the spanloader concept with no new major technology efforts required to implement the system. However, certain high pay-off technologies such as winglets, airfoil design, and advanced structural materials and manufacturing techniques need refinement and definition prior to application. In addition, further structural design analysis could establish the techniques and criteria necessary to fully capitalize upon the high degree of structural commonality and simplicity inherent in the spanloader concept. (Author)

  • Corporate Authors:

    Douglas Aircraft Company, Incorporated

    3855 Lakewood Boulevard
    Long Beach, CA  United States  90801
  • Publication Date: 1976-1

Media Info

  • Pagination: 142 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00145795
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NASA-CR-144962
  • Contract Numbers: NAS1-13964
  • Files: TRIS
  • Created Date: Jan 16 1977 12:00AM