Here's a fun and working model aircraft powered by articulated flight: https://www.youtube.com/watch?v=ysnAVwtdbYc https://www.youtube.com/watch?v=ysnAVwtdbYc

Here's a fun and working model aircraft powered by articulated flight: https://www.youtube.com/watch?v=ysnAVwtdbYc https://www.youtube.com/watch?v=ysnAVwtdbYc Things that strike me off the bat for creating "the real thing:" Ground effect with rising heat, helping with lift. Longer and lighter wingspans made out of special exotic materials that is incredibly durable, flexible and easy to articulate, perhaps with a "muscular" system. Much stronger, lighter and tuneable machines. Systems or mechanics preventing compartment shake. I think this is probably the most difficult part in order to achieve comfortable flight. The part of a bird best evolved to counteract this movement is the head, since they need that as a stable platform to observe the world despite the rest of the body moving.