- Registration: N301JJ / DL
- Manufacturer: Glasflügel* (modified by JJ Sinclair)
- Country of Orgin: Germany
- Glide Ratio: 40.5*
- Year Built: 1968
In 1964 the H-301 Libelle ("Dragonfly") received the first German and first U.S. Type Certificate issued to an all-fiberglass aircraft. It had flaps, water ballast and retractable landing gear. There are two canopy variants: the normal canopy and a sleeker, lower-profiled 'racing' canopy with no side vent. The canopy is unique in that it has a catch that enables the front to be raised by 25 mm (1 in) in flight to provide a flow of ventilating air instead of the more conventional small sliding panel used for this purpose. The American Will Schuemann pioneered several performance-enhancing modifications to the type, including a re-profiled wing, converting the airfoil to a Wortmann section, various fairings, a new canopy and a reshaped fuselage nose. Aircraft incorporating these changes are informally known as 'Schümanised' Libelles.
Maximum speed: 200 km/h (124 mph) Maximum glide ratio: ca. 40.5* Rate of sink: 0.55 m/s (108 ft/min)