Russia’s Su-75 Checkmate, the country’s first single-engine stealth fighter in decades, is set for its maiden flight this year. India has been offered the jet, potentially as a MiG-29 replacement.

Western sanctions have delayed the first flight of Russia’s fifth-generation Su-75 Checkmate, now scheduled to take place early next year. The Su-75 Checkmate is a single-engine, stealth-informed ...