Ridali Airfield (ICAO: EERI; Estonian: Ridali lennuväli) is an airfield in Estonia, about 10 kilometers north from Võru in the vicinity of Ridali - a place known for its beautiful scenery, abundance of lakes, fields and forests, giving glider pilots many visual reference points to navigate by. The airfield was used during World War II, in the early 1960s it started serving glider pilots. The first gliders to fly in Ridali were Soviet KAI-12's (Improved design from the Czech LF-109). The only way to launch gliders was by using the Czech winch "Herkules".