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The airport reference point shown on Spence Bay Airport Zoning Plan No. E.2739 dated July 25, 1989, is a point located on the centre line of runway 151-331 distant 580.5 m from the threshold of runway 151.
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The approach surfaces, shown on Spence Bay Airport Zoning Plan No. E.2739 dated July 25, 1989, are surfaces abutting each end of the strip associated with the runway designated 151-331, and are described as follows:
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The outer surface, shown on Spence Bay Airport Zoning Plan No. E.2739 dated July 25, 1989, is an imaginary surface located at a common plane established at a constant elevation of 45 m above the elevation of the airport reference point, except that, where that common plane is less than 9 m above the surface of the ground, the outer surface is an imaginary surface located at 9 m above the surface of the ground.
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The strip associated with runway 151-331, shown on Spence Bay Airport Zoning Plan No. E.2739 dated July 25, 1989, is 90 m in width, 45 m being on each side of the centre line of the runway, and 1 220 m in length.
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Each transitional surface, shown on Spence Bay Airport Zoning Plan No. E.2739 dated July 25, 1989, is a surface consisting of an inclined plane rising at a ratio of 1 m measured vertically to 7 m measured horizontally at right angles to the centre line and projected centre line of the strip and extending upward and outward from the lateral limits of the strip and its approach surfaces to an intersection with the outer surface.
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The boundary of the outer limits of lands, shown on Spence Bay Airport Zoning Plan No. E.2739 dated July 25, 1989, is a circle with a radius of 4 000 m centered on the airport reference point.
