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6/17/21 

AIM 

FIG 7

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

Vortex Movement Near Ground 

 No Wind 

No Wind

No Wind 

3K

3K 

3K

3K 

FIG 7

4

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