The K21 is used for first-time flyers and trial-lessons, the K13 is used as a trainer, and the Ka6 is used for solo pilots, as is the Astir (G-CGBJ) used for more experienced pilots.
It was replaced with the lower performance but easier to fly ASK 21, GAM.
August Schleicher | Schleicher's fable | Schleicher Ka 6 | Schleicher ASW 24 | Schleicher ASK 21 | Schleicher K 8 | Régis Schleicher | Alexander Schleicher |