Why the Boeing 747's upper deck hump will be nearly impossible to replicate in a modern jet

The 747’s hump became iconic because it solved old problems that modern jets no longer have.
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Boeing chooses leased 747-400 as testbed for 747-8 stretch to provide wing load data

Boeing has decided to use a leased 747-400 to prepare the ground for the forthcoming 747-8 stretch in a similar way that it is using a 777 for concept validation and risk-reduction on the 787. The ...