Originally Posted by
sonicbum
Hi FD,
in your example, the forecasted visibility is greater than the required RVR for CAT I, hence LIDO (example of what we use in my company) will accept it and will not mark it as "U".
Regarding the conversion, you can convert 600 m of visibility. What the rule says is that you can't convert in order to find RVRs lower than 800 m. If I have a general visibility of 400 m and a conversion factor of 2.0 I will find a CMV of 800m, I'm ok. On the other hand, if I have a conversion factor of 1.5 with the same visibility (daytime, HIRLS) I will find 600 m, less than 800 m , so not allowed.
Let me know your thoughts.
This is EXACTLY in accordance with my own interpretation of the rules for CMV as I posted earlier.