The concept of the super jumbo blended wing was a development of McDonnell Douglas. They commissioned Stanford University to construct a scale model to determine the low speed handling qualities of the full sized aircraft. Boeing inherited the design and only now are they giving any consideration to building one which would cost billions and would not fly for another ten years. In the mean time they can have an upgrade to the 747 and it could be flying in two years. Don’t count Boeing out and in the meantime, watch for problems in introducing the A380 into service.
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The Cat