ED Decision 2003/18/RM
In the absence of a more rational analysis, the gust load factors may be computed as follows:
where –
|
Kg |
= |
|
|
µg |
= |
|
|
Ude |
= |
derived gust velocities referred to in CS-VLA 333(c) (m/s) ; |
|
ρ0 |
= |
density of air at sea level (kg/m3); |
|
ρ |
= |
density of air (kg/m3); |
|
M/S |
= |
wing loading (kg/m2); |
|
C̅ |
= |
mean geometric chord (m); g = acceleration due to gravity (m/s2); |
|
V |
= |
aeroplane equivalent speed (m/s); and |
|
a |
= |
slope of the aeroplane normal force coefficient curve CNA per radian if the gust loads are applied to the wings and horizontal tail surfaces simultaneously by a rational method. The wing lift curve slope CL per radian may be used when the gust load is applied to the wings only and the horizontal tail gust loads are treated as a separate condition. |
