It’s most likely a scaled model otherwise it would make it smaller than most current drones the X-47B is pretty darn big it’s wingspan is larger than an F-18
It definitely has some interesting bulges and the flap at the bottom looks like an odd shape for a landing gear. My guess would be scram jet. What’s more interesting to me is the propulsion. Nuclear salt water rocket seems totally within the realm of current or near current technology.
See link skunkworker's post above. It is probably not a working vehicle, but a test shape. Also, it is probably upside down, and what you think is odd landing gear is just a stand for the shape.
