Libelle

The Glasflügel Libelle, introduced in 1968, quickly became one of the most influential single‑seat sailplanes of the late 20th century. Developed by the German firm Glasflügel under the guidance of designer Eugen Hänle, the Libelle was built from fiberglass composites, a material that was still novel in glider construction at the time. Its sleek 15‑metre wingspan, high‑aspect‑ratio wing and refined airfoil gave the aircraft an exceptional lift‑to‑drag ratio, allowing pilots to achieve long cross‑country flights and record‑breaking altitude gains. The aircraft featured innovative flaps that could be set to negative positions for improved cruising efficiency and a retractable undercarriage that reduced drag. A spacious, ergonomically designed cockpit offered excellent visibility, which, together with the responsive handling, made the Libelle popular among competition pilots and club members alike. Over 600 units were produced before production ceased in 1981, and the type remains a benchmark for modern composite gliders. Its success helped establish Glasflügel as a pioneer in the transition from wood and metal to all‑composite sailplanes, influencing subsequent designs such as the ASW 19 and Discus. Today, restored Libelles still compete and inspire new generations of pilots.