5. For 2-bar VASI (4 light units) see FIG 2-1-2.

FIG 2-1-2
2-Bar VASI

Far Bar


Near Bar

Below Glide Path On Glide Path

6. For 3-bar VASI (6 light units) see FIG 2-1-3.

FIG 2-1-3
3-Bar VASI

Far Bar

Middle Bar

Near Bar

Below Both On Lower
Glide Paths Glide Path

7. For other VASI configurations see FIG 2-1-4.

FIG 2-1-4
VASI Variations

2 Bar 2 Bar
2 Light Units 12 Light Units
On Glide Path On Glide Path

= Red
= White

Above Glide Path

On Upper Above Both
Glide Path Glide Paths

3 Bar
16 Light Units
on Lower Glide Path