From the most best stealth planes; to top secret helicopters caught on tape; These are 7 Abandoned and Declassified Black Projects HEY YOU ! There are more awesome videos being made every week, like and subscribe to World Unearthed so you don't miss a beat ! 7.B-2 Spirit | Democracy Calls | 6.Bird of Prey | Proof of Concept | 5.F-117 Nighthawk | 4.Lockheed A-12 | 3.SR-71 | The Blackbird | 2. THE FUTURE 1.Stealth UH-60 Black Hawk |