Is the B757 really a "heavy" aircraft?

Details

• Creators:
  Hallock, J. N. ; Soares, Melanie A.
• Corporate Creators:
  John A. Volpe National Transportation Systems Center (U.S.)
• Subject/TRT Terms:
  • Wakes
  • Vortices
  • Air traffic control
  • Aircraft
  • Takeoff
  • Landing
• Publication/ Report Number:
  AIAA 2007-288
• Resource Type:
  Proceedings
• Geographical Coverage:
  United States
• Corporate Publisher:
  American Institute of Aeronautics and Astronautics
• Abstract:
  In July 1996, a new wake vortex category was created for the B757 which placed it ; between revised Large and Heavy categories. Shortly thereafter, the B757-300, stretched ; version of the B757-200, was placed in service and soon was treated by Air Traffic Control ; as a Heavy aircraft due to its maximum certificated takeoff weight. This study examines the ; behavior of vortices from both aircraft during approach/landing operations and shows little ; difference between the vortices of the two B757 series. In fact, both measurements and ; theory indicate that B757-300 vortices decay somewhat faster than B757-200 vortices. ; Therefore, the B757-300 is being penalized by unneeded increased wake vortex spacing ; during approach/landing operations.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/8953/dot_8953_DS1.pdf
• File Type:
  [PDF - 590.18 KB]
• Collection(s):
  Volpe Center
• Main Document Checksum:
  urn:sha-512:c330445e407240e1eb19600ebb860dbc12f82369e68b39f7012da3a6c37aad466976b32172e7736e53dfdbdc4364a9ade0b48bd6269bdc91f8e0abee0f1720ba