Reminds me of anecdotes about deHavilland of Canada's two military transports: DHC-4 Cariboo and DHC-5 Buffalo. Rumour has it that when DHC designed the Cariboo's wing roots, they routed the wing root over the cargo compartment but then applied negative dihedral (anhedral) of to the engine nacelles. The anhedral was incorporated to allow shorter main undercarriage legs. By the time DHC designed the Cariboo's tail, they realized how much the inverted gull-wings (vertical area) decreased lateral stability, so they installed a massive vertical fin and double-hinged rudder. When they up-engined the Cariboo with turboprop engines, they flattened the wing Center-section and hinged the main undercarriage legs to very deep engine nacelles.