The Ferris Air Testing Facility is an airfield used for testing located in Central City.
In late 2014, Harrison Wells, Cisco Ramon, and Caitlin Snow took a van out to the testing facility to assess Barry Allen's super speed. He ran along a road before crashing into a group of water barrels.
In January 2015, Barry, Wells, Cisco, and Caitlin returned to the testing facility, attempting to improve Barry's speed in order to rival the Reverse-Flash. Rather than outrunning the projectiles, Barry ultimately chose to redirect a missile in to another one.
In May, Barry, Cisco, and Caitlin brought the meta-humans who had been incarcerated in the S.T.A.R. Labs particle accelerator here to move them to A.R.G.U.S.'s high-security prison on Lian Yu after "Wells" reactivated the particle accelerator. However, due to Leonard and Lisa Snart sabotaging the truck they had used to transport the metas, as Barry had asked Leonard to assist with the move, the prisoners escaped.
In late 2017, Cisco, Caitlin, Joe West, and Wally West met there at the testing facility when they used the modified Speed Force bazooka to get Barry out of the Speed Force prison. Cisco stated that he chose the location as they'd had luck here before.