TUCKnTRUCK
That guy
Negative.3 miles and 500 above MVA is the legal minimum for vectoring for the visual. 3 miles and 1,000 AGL is the legal limit for issuing a visual. Below that its a contact approach.
http://www.faa.gov/air_traffic/publications/ATpubs/AIM/aim0504.html#aim0504.html.57
3/1 is the reported field conditions. Visual is an IFR procedure, and does not require cloud clearance limits.
Quoted from the faa, ". Reported weather at the airport must have a ceiling at or above 1,000 feet and visibility 3 miles or greater. ATC may authorize this type approach when it will be operationally beneficial. Visual approaches are an IFR procedure conducted under IFR in visual meteorological conditions. Cloud clearance requirements of 14 CFR Section 91.155 are not applicable, unless required by operation specifications."
There is no required flight visibility, and airport vis/ rvr is not flight visibility, where as a contact approach requires 1 mike flight visibility. The primary diuference being that a contact approach my st be requested, and the airport need not be in sight.
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