The British driver will staff up with Logan Sargeant and Zdenek Chovanec to compete within the seventh spherical of the yr, making his debut within the championship.
Yeany is unable to compete in Sochi as a result of prior commitments within the US, however had been set to finish the season with Charouz at Austin earlier than the finale was moved to Russia.
Simmons is stepping up from the GB3 Championship, the place he’s second within the drivers’ standings.
The 20-year-old is one of the final 10 candidates for the 2021 Aston Martin Autosport BRDC Younger Driver of the 12 months Award and was the 2018 British System 4 vice-champion. He additionally has expertise in Euroformula Open and Asian F3.
“I’m actually trying ahead to racing with Charouz Racing System,” mentioned Simmons. “I need to thank the staff and likewise my sponsors for giving me this chance in getting me to Sochi.
“I’ve by no means pushed the automobile earlier than and by no means pushed with Pirelli tyres so it’s in all probability going to be troublesome at first to get used to every little thing having restricted observe time, however we’ll attempt to be taught as a lot as potential, and I’ll be sure that I’ll be as well-prepared as I can to ship the absolute best end result.”
Kaylen Frederick, Carlin Buzz Racing, Zdenek Chovanec, Charouz Racing System and Hunter Yeany, Charouz Racing System
Photograph by: Mark Sutton / Motorsport Images
Charouz is having fun with its greatest season thus far in F3, with 4 podiums and 100 factors placing the staff sixth within the groups’ standings. Sargeant, who completed third final yr, is ninth within the drivers’ standings.
Crew proprietor Antonin Charouz added: “I’m sorry that Hunter will be unable to complete the season with us, however sadly the change within the calendar was essential to permit all of the groups to handle the participation within the final spherical of the championship and there was no strategy to reconcile this transformation along with his different commitments within the US.
“Nonetheless, I’m joyful that Ayrton was accessible to reply the decision and take his seat, he’s a promising driver who already has just a few years of expertise and I’m positive he’ll rise up to hurry very quickly as soon as within the automobile at Sochi.”
Yeany had beforehand changed Enzo Fittipaldi on the Czech staff, who moved up to the outfit’s F2 team forward of the Monza spherical earlier this month.