approach visibility

approach visibility

[ə′prōch ‚viz·ə′bil·əd·ē]
(navigation)
The distance from which a pilot on the instrument approach glide path can see landing aids at the runway threshold. Also known as slant visibility.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
If the 34:1 surface is penetrated, approach visibility is limited to no lower than 3/4 statute mile.
Visual area protection
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