CS 22.425 Gust loads

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

CS 22.425 Gust loads ED Decision 2003/13/RM In the absence of a more rational analysis, the horizontal tail loads must be computed as follows:  where: P = horizontal tail load (N) Po = horizontal tail balancing load acting on the horizontal tail before the appearance of the gust (N) ρo = density of air at sea-level (kg/m3) St = area of horizontal tail (m2) ah = slope of horizontal tail lift curve per radian U = gust speed (m/s) kH = gust factor. In the absence of a rational analysis the same value may be taken as for the wing. V = speed of flight (m/s)  = rate of change of downwash angle with wing angle of attack