Sweden's Daniel Ryfa impressed with the top result in Free Practice 1, but Baptiste Vignes of France and Florian Bergér of Germany charged ahead in Free Practice 2 and logged the fastest times of the day.
Free Practice 1 was a tight affair, with Vignes, Bergér and home pilot Kevin Coleman all within 0.310s of Ryfa's chart-topping 55.394s, while Poland's Luke Czepiela was substantially behind due to a penalty for an incorrect Vertical Turning Manoeuvre.
And while the Swede improved his time in Free Practice 2, it was Vignes who jumped to the front, smashing the 55-second mark with 54.225s. Bergér was more than a half-second behind at 54.856s, followed by Czepiela, Ryfa and Coleman.
"I love this racetrack. You can fly fast, and I think the Vertical Turning Manoeuvre and Gate 7 are the keys. It's amazing to fly in this kind of place, and we have beautiful weather, so everything is set for a great race," the fastest pilot of the day Vignes said.
Hong Kong's Kenny Chiang had earned a place in the Red Bull Air Race Challenger Cup final, but he cannot participate due to illness. He will be evaluated as "Did Not Start" (DNS), finishing the 2018 Challenger Cup with a total of 26 points.
Tomorrow will see the Challengers in FP3 and then Qualifying. You can follow all the action live, HERE.
Fort Worth 2018 Challenger Class FP1 results
Fort Worth 2018 Challenger Class FP2 results