Weekly tips, technique and training from IFR.

Features August 2015 Issue

RVR is not Visibility

The FAA helps us confuse runway visual range (RVR) with flight visibility, but they’re different concepts. RVR is an instrumentally-derived value at a runway. Flight visibility is a pilot-observed distance in flight. Regulation §91.175 is clear—flight visibility is required to descend below DA/MDA. Yet, approach charts confusingly equate the two by providing both RVR and visibility values.

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