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Collective notes to Figures A2-1 to A2-11 Besluit toezicht luchtvaart BES

1. The ellipses in each figure are symmetrical about the common vertical and horizontal axes.

2. Figures A2-1 to A2-10 show the minimum allowable light intensities. The average intensity of the main beam is calculated by establishing grid points as shown in Figure A2-11 and using the intensity values measures at all grid points located within and on the perimeter of the ellipse representing the main beam. The average value is the arithmetic average of light intensities measured at all considered grid points.

3. No deviations are acceptable in the main beam pattern when the lighting fixture is properly aimed.

4. Average intensity ratio. The ratio between the average intensity within the ellipse defining the main beam of a typical new light and the average light intensity of the main beam of a new runway edge light shall be as follows:

Figure A2-1 | Approach centre line and crossbars | 1.5 to 2.0 (white light)

Figure A2-2 | Approach side row | 0.5 to 1.0 (red light)

Figure A2-3 | Threshold | 1.0 to 1.5 (green light)

Figure A2-4 | Threshold wing bar | 1.0 to 1.5 (green light)

Figure A2-5 | Touchdown zone | 0.5 to 1.0 (white light)

Figure A2-6 | Runway centre line (longitudinal spacing 30 m) | 0.5 to 1.0 (white light)

Figure A2-7 | Runway centre line (longitudinal spacing 15 m) | 0.5 to 1.0 for CAT III (white light)

0.25 to 0.5 for CAT I, II (white light)

Figure A2-8 | Runway end | 0.25 to 0.5 (red light)

Figure A2-9 | Runway edge (45 m runway width) | 1.0 (white light)

Figure A2-10 | Runway edge (60 m runway width) | 1.0 (white light)

5. The beam coverage in the figures provide the necessary guidance for approaches down to an RVR of the order of 150 m and take-offs down to an RVR of the order of 100 m.

6. Horizontal angles are measured with respect to the vertical plane through the runway centre line. For lights other than centre line lights, the direction towards the runway centre line is considered positive. Vertical angles are measured with respect to the horizontal plane.

7. Where, for approach centre line lights and crossbars and for approach side row lights, inset lights are used in lieu of elevated lights, e.g. on a runway with a displaced threshold, the intensity requirements can be met by installing two or three fittings (lower intensity) at each position.

8. The importance of adequate maintenance cannot be over-emphasized. The average intensity shall never fall to a value less than 50 per cent of the value shown in the figures and it shall be the aim of airport authorities to maintain a level of light output close to the specified minimum average intensity.

9. The light unit shall be installed so that the main beam is aligned within one-half degree of the specified requirement.

Regeling
Besluit toezicht luchtvaart BES
Soort
AMvB-BES
Geldend vanaf
01-01-2021
BWB-id
BWBR0028721
Versie
2021-01-01_0

In de hele regeling · Officiële tekst op wetten.overheid.nl