§ 154.294  ZONES.
   In order to carry out the provisions of this subchapter, there are hereby created and established certain zones within the airport hazard area of the Wadsworth Municipal Airport.  The various zones are described as follows:
   (A)   Runway landing areas.  All runway landing areas.  The runway landing area is a rectangular area symmetrically about the runway center line with an overall width of 200 feet and with its length extending to a line of 100 feet beyond each end of the runway, which line is defined as the landing area end.
   (B)   Approach zones.  Instrument approach zones.  The approach zone for each end of the instrument runway is the air space above a plane sloping upward and outward from the end of the runway landing area to its outer boundary at the uniform rate of one foot in elevation for each 30 feet measured horizontally along the extended center line of such runway.  This plane shall increase in width, at a uniform rate symmetrically about the extended runway center line, from 200 feet at its beginning to 2,200 feet at its outer boundary which, at 10,000 feet above the elevation at the end of the runway.
   (C)   Transitional zones.  Transitional zones consist of the air space above planes which slope upward and outward laterally from the sides of the planes forming the base of the approach zones and from the sides of the runway landing areas.  These planes shall be contiguous with the sides of the runway landing areas an extending upward and outward at the uniform rate of one foot in elevation for each seven feet in horizontal distances.  These planes extend upward and outward until they intersect with the planes forming, respectively the bases of the horizontal and conical zones, which are described in divisions (D) and (E) herein.
   (D)   Horizontal zone.  The horizontal zone is the air space above a circular horizontal plane 150 feet above the airport elevation having a radius of 6,600 feet measured horizontally from the airport reference point.  The elevation of the horizontal zone is 1,122 O.M.S.L.
   (E)   Conical zone.  The conical zone is the air space above a conical surface extending upward and outward at a uniform rate of one foot in elevation for each 20 feet in horizontal distance starting at the circumference of a circle whose radius is 6,600 feet from the airport reference point and an elevation of 150 feet above airport elevation (this being the outer boundary of the plane forming the base of the horizontal zone) and terminating at a radius of 10,000 feet from the airport reference point and at an elevation of 320 feet above the airport elevation.
('65 Code, § 1347.05)