What Is Area 51?
2. Test Facility
Something else that we do know about the facility is that it is used for testing advanced prototype aircraft. In the past, it has been used as a test facility for top-secret planes such as the U2 spy plane, the SR-71 Blackbird, and the F-117 Nighthawk, among others.
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New experimental planes will often have appearances that are quite unlike previous aircraft. It is thought that people living in the area getting a glimpse of these peculiar flying craft contributes to sightings of alleged UFOs. The facility has an especially extended runway and other facilities to allow them to accommodate these planes.
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