CS 22.585 Strength of launching hook attachment
CAA ORS9 Decision No. 1
(a) The launching hook attachment must be designed to carry a limit load of 1.5 Qnom, as defined in CS 22.581(b), acting in the directions specified in CS 22.581 and CS 22.583.
(b) The launching hook attachment must be designed to carry a limit load equal to the maximum weight of the sailplane, acting at an angle of 90° to the plane of symmetry.