3 ms·
Boeing looked at many possible configurations for the 747, a full-length double-deck among them (photos exist of such a wind tunnel model). The short top deck e
by nickff 6y ago
Boeing looked at many possible configurations for the 747, a full-length double-deck among them (photos exist of such a wind tunnel model). The short top deck exists for a variety of reasons, one of the more interesting ones is that the 747 was designed to be faster than later airliners, so the Whitcomb area rule is a factor in its design, especially noticeable in the -400 model, where the top deck ends above the wing root leading edge.