In order to carry out the provisions of this subchapter, there are hereby created and established certain zones which include all of the land lying beneath the approach surfaces, transitional surfaces, horizontal surfaces, and conical surfaces shown on that certain Huntington Municipal Airport Height Restriction Overlay District Zoning Map which is made a part hereof. An area located in more than one of these zones is considered to be only in the zone with the more restrictive height limitation. These zones are hereby established and defined as follows:
(A) Utility runway visual approach zone. The inner edge of this approach zone coincides with the width of the primary surface and is 250 feet wide. The approach zone expands outward uniformly to a width of 1,250 feet at a horizontal distance of 5,000 feet from the primary surface. It's centerline is the continuation of the centerline of the runway.
(B) Utility runway nonprecision instrument approach zone. The inner edge of the approach zone coincides with the width of the primary surface and is 500 feet wide. The approach zone expands outward uniformly to a width of 2,000 feet at a horizontal distance 5,000 feet from the primary surface. Its centerline is the continuation of the centerline of the runway.
(C) Runway larger than utility visual approach zone. The inner edge of this approach zone coincides with the width of the primary surface and is 500 feet wide. The approach zone expands outward uniformly to a width of 1,500 feet at a horizontal distance 5,000 feet from the primary surface. Its centerline is the continuation of the centerline of the runway.
(D) Runway larger than utility with a visibility minimum greater than 3/4 mile nonprecision instrument approach zone. The inner edge of this approach zone coincides with the width of the primary surface and is 500 feet wide. The approach zone expands outward uniformly to a width of 3,500 feet at a horizontal distance 10,000 feet from the primary surface. Its centerline is the continuation of the centerline of the runway.
(E) Runway larger than utility with a visibility minimum as low as 3/4 mile nonprecision instrument approach zone. The inner edge of this approach zone coincides with the width of the primary surface and is 1,000 feet wide. The approach zone expands outward uniformly to a width of 4,000 feet at a horizontal distance 10,000 feet from the primary surface. Its centerline is the continuation of the centerline of the runway.
(F) Transitional zones. The transitional zones are the areas beneath the transitional surfaces.
(G) Horizontal zone. The horizontal zone is established by swinging arcs of 5,000 feet radii for all runways designated utility or visual and 10,000 feet for all others from the center of each end of the primary surface of each runway and connecting the adjacent arcs by drawing lines tangent to those arcs. The horizontal zone does not include the approach and transitional zones.
(H) Conical zone. The conical zone is established as the area that commences at the periphery of the horizontal zone and extends outward therefrom a horizontal distance of 4,000 feet.
(Ord. 50-C-90, passed 2-12-91)