Document ID: chunk:federal_register_of_legislation:F2024C01244:reg:4:p15
Version: federal_register_of_legislation:F2024C01244
Segment Type: reg
Provision Reference: reg 4 (pt 15/21)
Character Range: 179998–182427

distance between the points of intersection of 2 successive longitudinal slope changes, that is required by subsection 6.06 (8), where the runway is the transverse line running from higher left to lower right.

If the runway code number is 3, and the slopes are S1 (+1%), S2 (-1.5%) and S3 (+1.5%), then the distance in metres between the 2 points of intersection must not be less than 15 000 x (2.5 + 3)/100, that is to say 825 m.

     Figure 6.06 (9)   Part of the calculation for the distance between the points of intersection of 2 successive longitudinal slope changes (illustrates matters)

6.07 Runway sight distance

       (1) For a runway with a code letter mentioned in a row of column 1 of Table 6.07 (1), the minimum unobstructed line of sight along the surface of a runway must not be less than the distance mentioned in the row of column 2 of the Table that is for the code letter.

     Table 6.07 (1)   Runway line of sight
Code letter   Minimum unobstructed line of sight
A             From a point 1.5 m above the runway to any other point 1.5 m above the runway for half the length of the runway.
B             From a point 2 m above the runway to any other point 2 m above the runway for half the length of the runway.
C, D, E or F  From a point 3 m above the runway to any other point 3 m above the runway for half the length of the runway.

Note   CASA recommends that runways for aircraft codes both above and below Code C should use the Code A minimum unobstructed line of sight. This would ensure superior visibility for aircraft with lower pilot eye heights when measured above the runway surface.

       (2) If runway lighting is provided for a runway with a code letter mentioned in a row of column 1 of Table 6.07 (2), the minimum unobstructed line of sight to the runway end lights must not be less than the distance mentioned in the row of column 2 of the Table that is for the code letter, when viewed at the height mentioned in the row.

      Table 6.07 (2)   Line of sight to runway end lights
Code letter   Minimum unobstructed line of sight to runway end lights
A             200 m — when viewed at a height of 1.5 m above the surface.
B             400 m — when viewed at a height of 2 m above the surface.
C, D, E or F  600 m — when viewed at a height of 3 m above the surface.

6.08 Transverse slopes on runways

       (1) The transverse slope on any part of a runway must not permit