Unsere Flugzeuge Ventus2c D-3214 ASK21 D-3520 Duo Discus D-1181 Grob Twin III D-3599 LS4b D-0115 „3F“ Grob Astir CS D-6979 K8 D-1963 Grob 109 D-KMED Z-602 D-MZSM