41. The introduction of glass fibre construction allowed sailplanes to achieve new levels of performance. 42. The area has god thermal, making it a favored location for sailplane flights. 43. In 1930, he then worked for the Bowlus Sailplane Company as the Superintendent. 44. The dolphins are closing fast as sailplanes . 45. Gliders and sailplanes that are used for the sport of gliding have high aerodynamic efficiency. 46. The sailplane was canard-configured, with a retractable engine ahead of the cockpit. 47. Schempp-Hirth manufactured 613 Ventus sailplanes . 48. It was the first firm to manufacture a glass-fibre sailplane in large numbers. 49. This ship was the only Schreder sailplane design to be named outside the HP nomenclature. 50. The wings were extremely long, and resembled those of a high-performance sailplane .
