AMC8 NCC.OP.110 Aerodrome operating minima – general
CAA ORS9 Decision No. 1
CONVERSION OF REPORTED METEOROLOGICAL VISIBILITY TO RVR/CMV
(a) A conversion from meteorological visibility to RVR/CMV should not be used:
(1) when reported RVR is available;
(2) for calculating take-off minima; and
(3) for other RVR minima less than 800 m.
(b) If the RVR is reported as being above the maximum value assessed by the aerodrome operator,
e.g. ‘RVR more than 1 500 m’, it should not be considered as a reported value for (a)(1).
(c) When converting meteorological visibility to RVR in circumstances other than those in (a), the conversion factors specified in Table 5 should be used.
Table 5 : Conversion of reported meteorological visibility to RVR/CMV
|
Light elements in operation |
RVR/CMV = reported meteorological visibility x |
|
|---|---|---|
|
Day |
Night |
|
|
HI approach and runway lights |
1.5 |
2.0 |
|
Any type of light installation other than above |
1.0 |
1.5 |
|
No lights |
1.0 |
not applicable |