For the CAP advisory example, what is the effect as to the ground visibility equivalent to '3/4'?

For the CAP advisory example, what is the effect as to the ground visibility equivalent to '3/4'?

• A. 0.75 statute miles
• B. 0.50 statute miles
• C. 0.25 statute miles
• D. 1.00 statute mile

Answer: (A)

Interpreting fractional visibility values in miles is the key. In U.S. aviation weather, visibility is given in statute miles, and a fraction like 3/4 is simply its decimal equivalent. 3 divided by 4 equals 0.75, so the ground visibility described as 3/4 mile corresponds to 0.75 statute miles. That’s about 3,960 feet of visibility (roughly 1.21 kilometers). This conveys a fairly low level of ground visibility for planning and decisions under VFR.

Interpreting fractional visibility values in miles is the key. In U.S. aviation weather, visibility is given in statute miles, and a fraction like 3/4 is simply its decimal equivalent. 3 divided by 4 equals 0.75, so the ground visibility described as 3/4 mile corresponds to 0.75 statute miles. That’s about 3,960 feet of visibility (roughly 1.21 kilometers). This conveys a fairly low level of ground visibility for planning and decisions under VFR.