Originally Posted by
CaptainMongo
Too tired,
I like your K.I.S.S. matrix, where would you put in winds going out of limits? Let's say they are just in limits at the start of the approach.
Must be a strange airfield - RVR just above 75 m ( why else Cat 3b needed) and still the wind going out of limits?
For the OP, many times when LOVIS procedures are used, the WX actually isn't all that bad. Sure, your Cat3 dual allows 75m RVR, but if actual conditions are 200 m RVR, a downgrade to Cat3 Single is no problem at all. If the cause for the downgrade does not really require any more action than turning one knob one click, then that should not be too difficult, even below 1.000 ft. Until when? Well, that would be a nice point to ponder for a captain, who is the PF anyway during LOVIS. Of course, all this has been evaluated and briefed beforehand.