For pilots, knowledge of the sky cover helps determine if visual flight rules are being met.

You can fly it during the day and must follow visual flight rules.

If weather conditions did not allow visual flight rules, the latter four would be transported by scheduled services instead.

Pilots using the field usually just follow visual flight rules.

There is no commercial traffic in the area, but please be on the lookout for light aircraft operating under visual flight rules.

Of course, for the time being everything will be on visual flight rules.

In 25 of these, it banned pilots from flying under visual flight rules.

Both were operating under visual flight rules, as the weather at the time of the crash was clear and calm.

However flight rules call for a shorted mission in the event a single unit is lost.

An even larger number of airplanes, no one is sure how many, fly under visual flight rules.