CS 22.711 Release mechanisms

• ED Decision 2003/13/RM found in: Sailplane Rule Book - Part-SAO Part-SFCL CS-22 (Nov 2022)

CS 22.711 Release mechanisms ED Decision 2003/13/RM (a) Release mechanisms to be used for winch-launching must be so designed and installed as to release the towing cable automatically (i.e. to back-release) if the sailplane overruns the cable while it is carrying any appreciable load. (b) The release mechanisms must be approved. (c) It must be extremely improbable for bolts or other projections on the release mechanism itself or the structure surrounding the mechanism, including the landing gear, to foul the towing cable or its parachute. (d) It must be shown that the release force will not exceed that prescribed in [CS 22.143(c)](#_DxCrossRefBm2056272052) when a cable load Qnom is applied in any direction (see [CS 22.583](#_DxCrossRefBm2056272178)), and that the release mechanism functions properly under any operating condition. (e) The range of travel of the release lever in the cockpit, including free travel, must not exceed 120 mm. (f) The release lever in the cockpit must be arranged and designed so that the pilot force as defined in [CS 22.143(c)](#_DxCrossRefBm2056272052) can be easily applied. (g) A visual inspection of the release mechanism must be easily possible.