After testing the car this week at Road Atlanta, former Dragon Racing IndyCar driver will race the open-topped DeltaWing at Mazda Raceway Laguna Seca on May 11.
Legge joins Andy Meyrick to create an all-English driver lineup for the DeltaWing's first start in Monterey, and second race with the its new Élan engine and Bridgestone tires.
“It was really exciting to get in the car on Sunday for the first time,” said Legge. “Having driven lots of types of racing cars, I didn't know what to expect, so I was very pleasantly surprised.”
The DeltaWing is unique in running at half the weight, half the fuel and half the horsepower of a normal prototype, and three quarters of the tire consumption. The car ran for the first time in the LMP1 class at Sebring.
“It braked really well, it turned really positively, and it was really fast in a straight line – it drove like a really good racing car,” she said. “It was very stable, and I also was impressed with the way it handled. It was really neat to get it going.”
Legge replaces Olivier Pla, who raced the DeltaWing in Sebring, due to Pla's extended European racing schedule. Pla's schedule includes the remainder of the FIA World Endurance Championship with OAK Racing, and also additional Porsche GT commitments.
DeltaWing team manager Dave Price said: "Most of the time we were doing engine work, but Katherine got on with it and didn't make a fuss. She did a good job."
Price plans to test again at the team's home track of Road Atlanta next week to give Legge further time in the car. A test scheduled for Wednesday has now been canceled.
"We are involved in what is really a development program and we are trying to reconfigure the turbo side of things," he explained. "That's why we need some time before we run again."
The 2013 version of the DeltaWing, which raced with a Nissan engine at last year's Le Mans 24 Hours, is powered by a new engine developed by team owner Don Panoz's Elan Motorsports Technologies group.
The DeltaWing team has yet to confirm drivers for the remainder of the ALMS season, over the course of which it will give a debut to the coupe version of the car unveiled in show form at Sebring in March.