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VisualCues

 

THEME

After the implementation of the JAR minima, there is one important question: What can I expect to see at the approach minimum?

If the approach angle is different from 3°, it's difficult to say how are the presentation of the runway and the approach lights.

The expected visual cues are fundamental for approach preparation and for the decision at the minimum.

   

DESCRIPTION

First, the foil with the black marking has to be turned to the intersection point between approach angle and approach minimum in feet.
Second, the actual visibility report can be compared directly with the distance to the approach lights and runway. One find the expected visual cues of approach lights and runway: 

 

LEGEND 1. approach angle
2. minimum in feet (height)
3. mark / aircraft position at the MIN
4. visibility (0-5000m)
5. approach-lights (0-900m)
6. runway (0- ca. 1700m)
7. PAPI (300m aiming point)
8. conversion table ft-SM-m

 

Image
 
EXAMPLE

- approach-angle 3.2° / approach-lights 900m / minima on IAC: 480ft - 2.5 km

• set mark (3) to the intersection angle 3.2° and minimum 480ft (orange ring)
• the reported visibility is 2500m (green ring):

- one is able to see the approach lights and the first 180m of the runway

 


  

Overall description available as pdf-file in different languages:
Image Image

 


 

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