Document ID: chunk:federal_register_of_legislation:F2024C01244:reg:5:p114
Version: federal_register_of_legislation:F2024C01244
Segment Type: reg
Provision Reference: reg 5 (pt 114/225)
Character Range: 606319–609832

edge light;

        must be that given in the same row in column 3, as shown in the Figure mentioned in the same row in column 1.

     Table 9.75 (2)   Average main beam light intensity ratios

Relevant figure for light intensity  Lights                                                                 Light intensity ratios
Figure 9.75 (1)                      Low-intensity runway edge lights                                       1.0 (white light)
Figure 9.75 (2)                      Medium-intensity runway edge lights                                    1.0 (white light)
Figure 9.75 (3)                      High-intensity runway edge lights (if the width of runway is 30-45 m)  1.0 (white light)
Figure 9.75 (4)                      High-intensity runway edge lights (if the width of runway is 60 m)     1.0 (white light)
Figure 9.75 (1)                      Low and medium-intensity threshold lights                              1.0 to 1.5 (green light)
Figure 9.75 (5)                      High-intensity threshold lights                                        1.0 to 1.5 (green light)
Figure 9.75 (6)                      High-intensity threshold wing bar lights                               1.0 to 1.5 (green light)
Figure 9.75 (1)                      Low and medium-intensity runway end lights                             0.25 to 0.5 (red light)
                                     Stopway lights
                                     Runway starter extension pre-threshold lights (red)
Figure 9.75 (7)                      High-intensity runway end lights                                       0.25 to 0.5 (red light)
Figure 9.75 (8)                      High-intensity runway centreline lights (longitudinal spacing 30 m)    0.5 to 1.0 (white light)
Figure 9.75 (9)                      High-intensity runway centreline lights (longitudinal spacing 15 m)    0.5 to 1.0 for CAT III (white light)
                                                                                                            0.25 to 0.5 for CAT I, CAT II (white light)
Figure 9.75 (10)                     Runway touchdown zone lights                                           0.5 to 1.0 (white light)

Note   The beam coverages in the Figures mentioned in Table 9.75 (2) provide the necessary guidance for approaches down to an RVR of 150 m and take-off to an RVR of 100 m.

       (3) For this section:

(a) horizontal angles are measured with respect to the vertical plane through the runway centreline; and

(b) for lights other than centreline lights — the direction towards the runway centreline is considered positive.

       (4) Vertical angles must be measured with respect to the horizontal plane.

Note   The vertical minimum values at 0 degrees in Figures 9.75 (1) to 9.75 (12) are depicted for completeness. Values at a 0 degree angle are at not intended to restrict the compliance of fittings as a pilot is not intended to see such an angle in proximity to a fitting due to his or her eye height and the cockpit cut-off angle. If a fitting would otherwise not comply with the values established at 0 degrees, a reassessment is permissible for values at 1 degree vertical and above. Values at a vertical angle of less than 1 degree are excluded from consideration.

       (5) The maximum light intensity value measured on, or within, the boundary (normally an ellipse) defining the main beam must not be more than 3 times the minimum light intensity value so measured.
    Figure 9.75 (1)   Isocandela