KC-135 fra Edwards betjente et ukjent fly i Area 51 i september - Tyler Rogoway

Area 51 with flight tracking apps and websites, but you can track the tankers that support some of those operations. Often times, tankers out of Travis AFB with the callsign 'SIERA 99' or 'SIERA 98' will support more mundane test duties over the Nevada Test and Training Range (NTTR), but a tiny fleet of dedicated test tankers based out of the heart of the USAF's flight test apparatus at Edwards AFB will provide much-needed fuel to very secretive flying machines. One of these flights was especially peculiar, occurring on September 20th, 2018 and taking place right over Area 51 that sits deep inside the NTTR under its own super-restricted airspace.