Flight Visibility – The Wise Pilot

The average range of forward visibility at any given time from the cockpit of an aircraft in flight.

Glossary: Contact Approach
An approach wherein an aircraft on an IFR flight plan (FP), having an ATC authorization and operating clear of clouds with at least 1 mile flight visibility and a reasonable expectation of continuing to the destination airport in those conditions, may deviate from the instrument approach procedure (IAP) and proceed to the destination airport by visual reference to the surface of the earth.