AMC 25.345(a) High lift devices (Gust conditions)

• ED Decision 2003/2/RM found in: CS-25 Amdt 27 - Large Aeroplanes (Jan 2023)

AMC 25.345(a) High lift devices (Gust conditions) ED Decision 2003/2/RM Compliance with [CS 25.345(a)](#_DxCrossRefBm1709820949) may be demonstrated by an analysis in which the solution of the vertical response equations is made by assuming the aircraft to be rigid. If desired, the analysis may take account of the effects of structural flexibility on a quasi-flexible basis (i.e. using aerodynamic derivatives and load distributions corresponding to the distorted structure under maximum gust load).