21st Congress of International Council of the Aeronautical Sciences, Melbourne, Australia, 13-18 September, 1998
Paper ICAS-98-4.10.2

RECENT INVESTIGATIONS OF THE VERY LARGE PASSENGER BLENDED-WING-BODY AIRCRAFT

Denisov V. E., Bolsunovsky A. L., Buzoverya N. P., Gurevich B. I.
Central Aerohydrodynamic Institute (TsAGI), Russia

Keywords: very large passenger blended-wing-body aircraft

The "Flying Wing" (FW) or Blended-Wing-Body (BWB) layouts for subsonic long-haul ultra-high capacity passenger airplane promise significant benefits in terms of DOC and fuel efficiency. Nevertheless, so cardinal change of the configuration can entail serious difficulties in development and operation. Hybrid layouts, which represent an intermediate link between a "pure" FW and a conventional airplane can overcome these difficulties to a great extent, while retaining a primary advantage of FW -high UD ratio. We call such hybrid schemes the Integrated-Wing-Body (IWB) schemes. The IWB layout has less technical risk, higher commonality with a conventional aircraft in production and operation and higher level of comfort and safety for passengers. The description of the designed 750 passenger IWB airplane is given and its possible performance is assessed in comparison with conventional airplane of the same capacity.

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