Requirements to servo-boosted control elements for sailplanes

  • Identification and characterization of novel DNA methylation biomarkers in human breast cancer

Gäb, Andreas; Nowack, Jan; Alles, Wolfgang

Aachen : Publikationsserver der RWTH Aachen University (2009)
Conference Presentation

In: XXIX OSTIV Congress : August 6 - 13, 2008, Lüsse, Germany / Organisation Scientifique et Technique Internationale du Vol à Voile = International Scientific and Technical Soaring Organisation. Chairman: Dr. Hermann Trimmel


Requirements for control systems in sailplanes and powered sailplanes to be equipped with servo-powered transmission and control elements have been analyzed to provide information regarding airworthiness of such controls. A flight dynamics dataset was acquired in flight tests and used to create a six degree-of-freedom simulation in which various potential actuator failure scenarios were investigated. An exemplary functional hazard analysis was conducted. To demonstrate a servo-boosted control system for the airbrakes, a system based on an electric actuator was designed, built, and evaluated in flight. The system kept the hand force below a specified level and allowed controlled deployment of the airbrakes over the whole speed range.