An air show in southwestern Ohio reopened with a moment of silence Sunday, a day after a pilot and wing walker died in a horrifying, fiery crash in front of thousands of spectators.

The Vectren Air Show near Dayton, which closed right after Saturday’s crash, resumed Sunday in honor of pilot Charlie Schwenker and veteran stuntwoman Jane Wicker, both of Virginia.

“As a pilot, you accept the fact that accidents do happen — it’s an accepted risk we take,” said John King, president of the Flying Circus Airshow, which had trained Wicker.

“They were both dedicated to flying and the act. They were true, ultimate professionals,” King said. “I don’t know of anyone who could have done any better than what they were doing.”

Wicker, 44, and Schwenker, 64, were killed in a fiery plane crash witnessed by thousands. The cause of the crash isn’t yet known.

Jason Aguilera, the National Transportation Safety Board investigator leading the probe into the crash, said Sunday it was too early to rule anything out and the agency would issue its findings in six months to a year.

Video of the crash showed the plane gliding through the sky before abruptly rolling over, crashing and exploding into flames. Wicker, performing at the Dayton show for the first time, had been sitting atop the 450 HP Stearmans biplane.

The decision to resume the show a day after the crash was an emotional one supported by Wicker’s ex-husband, air show general manager Brenda Kerfoot said.

“He said, ‘This is what Jane and Charlie would have wanted,’” Kerfoot said. “‘They want you to have a safe show and go out there and do what you do best.’”

Wicker, who lived in Bristow, Va., was a mother of two boys and engaged to be married, Kerfoot said.

“She was a well-rounded, delightful woman who was passionate about aviation,” Kerfoot said. “She was in the business for a very long time and was well-loved by the air show community; she would certainly have wanted the show to go on.”

On the video of the crash, an announcer narrates as Wicker’s plane glides through the air.

“Keep an eye on Jane. Keep an eye on Charlie. Watch this! Jane Wicker, sitting on top of the world,” the announcer said, right before the plane makes a quick turn and nosedive.

Some spectators said they knew something was wrong because the plane was flying low and slow.

Thanh Tran, of Fairfield, Ohio, said he could see a look of concern on Wicker’s face just before the plane went down.

“She looked very scared,” he said. “Then the airplane crashed on the ground. After that, it was terrible, man … very terrible.”

In 2011, wing walker Todd Green fell 200 feet to his death at an air show in Michigan while performing a stunt in which he grabbed the skid of a helicopter.

In 2007, veteran stunt pilot Jim LeRoy was killed at the Dayton show when his biplane slammed into the runway while performing loops and caught fire.

Organizers were presenting a trimmed-down show and expected smaller crowds at Dayton after the Air Force Thunderbirds and other military participants pulled out this year because of federal budget cuts.

The air show, one of the oldest in the U.S., usually draws around 70,000 people and has a $3.2 million impact on the local economy. Without military aircraft and support, the show expected attendance to be off 30 percent or more.

Still, King said, in the four decades since Flying Circus started, many kids have been so inspired watching the show that they later became military and commercial pilots.

“Our show takes them back to the barnstorming era of air shows,” he said. “It’s amazing how many people have taken up aviation careers because of their first exposure to the Flying Circus.”