The ASK 21 is a popular German two-seater glider, first built in 1979. It is primarily used for beginner instruction and aerobatics training, as well as for transitioning pilots from older wooden gliders like the K 8 to modern single-seat composite gliders. Capable of withstanding g-loads of +6. 5 and -4G, it has a maximum speed of 280 km/h. Despite not having the best glide ratio, it is appreciated for its well-balanced handling and safety. The ASK 21 is a well-constructed and robust glider wit... The ASK 21 is a popular German two-seater glider, first built in 1979. It is primarily used for beginner instruction and aerobatics training, as well as for transitioning pilots from older wooden gliders like the K 8 to modern single-seat composite gliders. Capable of withstanding g-loads of +6. 5 and -4G, it has a maximum speed of 280 km/h. Despite not having the best glide ratio, it is appreciated for its well-balanced handling and safety. The ASK 21 is a well-constructed and robust glider with forgiving flight characteristics. This simulator version aims to replicate the real aircraft as accurately as possible, featuring authentic custom sounds, a fine-tuned aerobatics-capable flight model, and stunning visuals. Developed in collaboration with real ASK 21 pilots, the f7 Simulations K21 strives to be the most authentic glider available for flight simulators.