Tupolev Tu-404
The flying wing's powerplant would consist of six pusher turboprop engines developing 18,000 kg of thrust each during take-off and each consuming only 0.644 kg/kgf-h of fuel in cruise mode.The engines would have been located in the tail section of the flying wing fuselage between two large V-shaped vertical stabilizers.Two large removable wings containing fuel tanks have the leading-edge sweep of 35 degrees and are attached to the central fuselage.The conventional design featured a two-level passenger aircraft capable of transporting 1,200 people to destinations of up to 10,000 km.Proposed powerplants included four Kuznetsov NK-44 or Rolls-Royce "Trent" engines installed on underwing pylons.