OY-XXI
| Type | Schempp-Hirth Discus CS |
| Construction number | 071CS |
| Year of manufacture | 1992 |
| Year of registration- cancellation | 1998-2003 |
| ICAO | 0 |
| Notes | D-3934, OY-XXI, competition number B2, D-5070 |
| Type | Schempp-Hirth Discus CS |
| Construction number | 071CS |
| Year of manufacture | 1992 |
| Year of registration- cancellation | 1998-2003 |
| ICAO | 0 |
| Notes | D-3934, OY-XXI, competition number B2, D-5070 |