6/17/21
AIM
FIG 7
−
4
−
4
Vortex Flow Field
AVOID
AVOID
Nominally 500-1000 Ft.
Nominally 500-1000 Ft.
Sink Rate
Several Hundred Ft.,/Min.
Sink Rate
Several Hundred Ft.,/Min.
FIG 7
−
4
−
5
Vortex Movement Near Ground
−
No Wind
No Wind
No Wind
3K
3K
3K
3K
FIG 7
−
4
−
6
Vortex Movement Near Ground
−
with Cross Winds
6K
6K
(3K + 3K)
(3K + 3K)
3K Wind
3K Wind
0 (3K - 3K)
0 (3K - 3K)
Wake Turbulence
7
−
4
−
3