Athens Flying Week 2019, Tanagra Air Force Base.

The Sukhoi Su-26M is a single-seater aerobatic aircraft from the former Soviet Union, powered by a single radial reciprocating engine. The Su-26 has mid-mounted straight wings and fixed landing gear, the main gear mounted on a solid titanium arc. The Su-26 made its first flight in June 1984, the original four having a two-bladed propeller. The production switched to the Su-26M, with refined tail surfaces and a German-made MTV-9 3-blade composite propeller. Further refinements were made, and the model won both the men's and women's team prizes at the 1986 World Aerobatics Championships. (wikipedia)