Provided the airport is equipped with Instrument landing system category IIIC (CAT IIIc) technology, that the aircraft is equipped with an instrument approach capability and the pilot knows how to use it, then an aircraft could land on a runway with zero visibility. That's the reason CAT IIIc has not been commissioned at any airport, although some do have it. However aircraft can and do land at airport with CAT IIIb technology, for which the minimum runway visual range (RVR) is just 46 metres. READ MORE:* How much visibility does a pilot need to land safely in fog? At typical landing speed, the aircraft will cover that distance in about two-thirds of a second.

Source: Stuff March 12, 2019 22:52 UTC