Approach Surface, Precision

The dataset provides information on airport approach surfaces. The approach surface is longitudinally centered on the extended runway centerline and extends outward and upward from each end of the primary surface. An approach surface is applied to the end of each runway based upon the type of approach available. (Slopes can vary from 20:1, 34:1, 40:1 or 50:1).
Organization: State of Iowa
Organization URL: https://catalog.data.gov/organization/iowa
Last updated: 2024-07-25
Tags: airfield, aviation, imaginary surface, inventory, part 77, runway