Lockheed Martin

7418.79 - 7446.453 David Rosenthal

You owe it to yourself if you have not seen one of these things in person. It's just one of the most amazing objects ever created. But these cones, what do they do? So the engines get the thing up. And then once it's up in the air, the cones expand and retract. First suck in and then compress and then superheat massive amounts of air that they then mix with fuel in the engines and ignite.