The top-secret unmanned stealth plane that was mistaken for a genuine UFO as it was transported through Washington D.C. has been unveiled by the U.S. Navy.

The experimental X-47B caused a stir when the 'alien spacecraft' was driven along the Capitol Beltway as it was moved from West Virginia to Naval Air Station Patuxent River in Southern Maryland.

The internet exploded with sightings of the 62 feet long, 32 feet wide and 14 feet high craft as it was transported to begin test flights that will eventually see the Unmanned Combat Air System aircraft take off and land onto an aircraft carrier.
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