An all-metal flush riveted sailplane with fabric covered control surfaces, the Blanik is stressed for aerobatics and has held many two-seat records. It is equipped with DFS type airbrakes and Fowler-type flaps. The main wheel has an oleo strut shock absorber and is partially retractable.

An all-metal flush riveted sailplane with fabric covered control surfaces, the Blanik is stressed for aerobatics and has held many two-seat records. It is equipped with DFS type airbrakes and Fowler-type flaps. The main wheel has an oleo strut shock absorber and is partially retractable.

Although out of production for a number of years, the Blanik remains one of the most active two-place training and club aircraft throughout the world. It was designed in the early 70's by Karel Dlouhy in the Czech Republic.

It is often used for advanced training. The Duo Discus replaced the Janus as Schempp Hirth's high performance two seater trainer. Although it shares its name with the highly successful Standard Class Discus, any resemblance is only superficial. It first flew in 1993 and is still in production at the factory in Orlican in the Czech Republic. It has a 20 meter four piece wing that is slightly swept forward so that the rear pilot is close to the center of gravity. Its best glide ratio was measured as 45:1

It is often used for recreational soaring. The G 103 C Twin III is a development of the Twin II with a new ‘Discus’ plan wing of slightly increased span and modified airfoil section. The cockpit has detailed improvements including better ventilation, relocated airbrake levers to give better purchase, and canopies restrained by gas-filled struts. The unpowered sailplane is cleared for aerobatics similar to the Twin II Acro. Its best glide ratio was measured as 36:1