This is not an UFO. This is supposedly the Secret Arora Plane whose technology they say was secretly developed in Area 51, and the technology was adopted from the crashed UFOs in 1947. Atleast that is what the History Channel was saying about Aurora.
Note that the Triangle is a new concept in space and air navigation. It gives a Delta Wing for Optimal Speed-To-Lift in the Air and the 3 Variable Thurst Vector-Points of the Triangle gives a unique omni-directional maneuvering in one plane - and if the Thrusters can also be turned and rotated, then we get a powerful UFO-like 3-D omni-directional maneuverability in space. They Thrust Engines are Ionic Propellant Engines. Then they can also be spun fast like a spinning disc for anti-gravity effect. Most likely the center red-spot is the place where they have the nuclear reactor - and the red sign is for some warning to the personnels themselves - and not to others as this is a secret plane.
Interestingly the first Propellant Thrust Engines used Heated Mercury - which is also mentioned in the Indian Vimanas literature.
See - http://en.wikipedia.org/wiki/Vaimanika_Shastra (though I independently arrived at the same conclusion based on my previous readings on Vimanas.
The propulsion of the vimanas according to Kanjilal (1985) is by a "Mercury Vortex Engines"[11], apparently a concept similar to electric propulsion. Childress finds evidence for this "mercury vortex engine" in the Samarangana Sutradhara, an 11th century treatise on architecture.