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美军五种最秘密的军机(视频)
送交者: ByStander 2014年05月17日19:00:11 于 [军事天地] 发送悄悄话
美军五种最秘密的军机(视频)

"...Something at 90,000 ft (27.4 km), moving at Mach 4 to Mach 5.2..."

Feb 25, 2014

UFO? Try top secret military aircraft. These are the most mysterious military airplanes, jets and space planes flying today, including the infamous Aurora black triangle, the Boeing X-37, the new Northrop Grumman unmanned RQ-180 stealth drone, the Blackstar space bomber, and stealth Black Hawk helicopters.

These incredible black projects were developed under the watch of the US Air Force, the US Navy, the CIA, the US Army and NASA. With numerous sightings, they've been the subject of conspiracy theories and investigations for decades.

Tested in top secret locations like Area 51, evidence and footage is difficult to obtain but rumors of their existence continue to persist.

So buckle up for a look at the 5 most secret military aircraft, and don't be surprised if you encounter a bit of turbulence...




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