Not sure where one would find definitive information on it but it seems to be 'common knowledge' that the Russian air force has to have such a capability becaus

Not sure where one would find definitive information on it but it seems to be 'common knowledge' that the Russian air force has to have such a capability because of the lack of development in distant parts of the country. Anyway there are videos of aircraft doing it like this one: https://www.youtube.com/watch?v=vVJWm0lf9v4 https://www.youtube.com/watch?v=vVJWm0lf9v4. And this one is on a proper runway but illustrates the toughness of Russian/Soviet designs: a landing gear failure where the aircraft was apparently flying again after two or three days https://www.popularmechanics.com/flight/a18021/su-27-landing-no-landing-gear-video/ https://www.popularmechanics.com/flight/a18021/su-27-landing... Of course the A10 can also use dirt runways.