Feb 182024
 

NASA artwork (probably 1970s/early 80’s) of a dual-fuselage DC-9. This would double the capacity while not doubling the weight; drag would go up, but so would aerodynamic efficiency due to increased effective aspect ratio of the wing, as well as being more structurally sound for the weight. The need for a pretty wide runway is something of a concept-killer, though.

 

 Posted by at 10:01 pm