Reno, Nevada (CNN) - A year after a deadly crash, the annual air races are back in the skies in Reno, Nevada.
The first race started on Wednesday, after a several days of qualifying runs.
Organizers made some changes to the race.
The course is farther north and there's also an altitude maximum, as well as a concrete barrier between the race and fans.
The idea is to limit how much debris can travel in case of an accident.
Organizers say people they've talked to are glad to be back in Reno.
Mike Houghton, with the Reno Air Racing Association said, “They've been the source of the encouragement to keep moving forward and they're real happy because we've succeeded and we're here." Last year, 11 people were killed, and dozens hurt, after a plane crash.