Standbyils
Then my next question would be what if the RVR dropped below 400m with no LVPs in force? Can crew depart? Can the airfield process departing traffic?
Just to clarify a few things,
1) If the rvr drops to 400m then we are in LVPs no matter what.
2) The crucial thing here is whether or not the runway is safeguarded. If not then all pilots will be told that "ATC LVP's are in force but the runway is not safeguarded" It is then up to a pilot wether or not to land/depart depending on what his/her criteria is.
3) It is not a factor as to how high a tower is. It is just weird tho looking down from a tall tower to see clouds below!!
Babe