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)
