english: The Sukhoi Su-31 is a Russian single-engined aerobatic aircraft designed by Sukhoi as a lighter and more powerful version of the Sukhoi Su-29.
non_english: The Sukhoi Su-31 yaiku pesawat aerobatic siji mesin Russian dirancang dening Sukhoi minangka luwih entheng lan kuat Sukhoi Su-29.