CS 22.583 Winch-launching

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

CS 22.583 Winch-launching ED Decision 2003/13/RM (a) The sailplane must be initially assumed to be in level flight at speed VW with a cable load acting at the launching hook in a forward and downward direction at an angle ranging from 0° to 75° with the horizontal. (b) The cable load must be determined as the lesser of the following two values: (1) 1.2 Qnom as defined in [CS 22.581(b)](#_DxCrossRefBm2056272177), or (2) the loads at which equilibrium is achieved, with either: (i) the elevator fully deflected in upward direction, or (ii) the wing at its maximum lift. A horizontal inertia force may be assumed to complete the equilibrium of horizontal forces. (c) In the conditions of [CS 22.583(a)](#_DxCrossRefBm2056272178), a sudden increase of the cable load to the value of 1.2 Qnom as defined in [CS 22.581(b)](#_DxCrossRefBm2056272177), is assumed. The resulting incremental loads must be balanced by linear and rotational inertia forces.