4 Clear Zone Surface B See Table See See 3.6 Table 3.2 Table 3.2 5 Start of Approach C 22.86m from 45.72m 22.86m Departure Surface end of from GPI from GPI runway or landing lane 6 Length of Sloped C 365.76m 365.76m 365.76m Measured Portion of horizontally 7 Slope of C 8:1 8:1 8:1 Slope ration is Surface horizontal to vertical. 8:1 is 8 meters horizontal to 1m vertical. 8 Width of Sloped Portion C 91.44m 91.44m 45.72m Centered on the of Approach-Departure extended centerline, Surface at start of and is the same sloped portion width as the primary surface 9 Width of Sloped Portion C 182.88m 182.88m 152.40m Centered on the of Approach-Departure extended centerline Surface at End of Sloped Portion 10 Elevation of C 0m 0m 0m Above the Surface at established elevation Start of Sloped Portion of the landing surface. 11 Elevation of C 45.72m 45.72m 45.72m Above the Surface at established elevation End of Sloped Portion of the landing surface. 12 Length of D 365.76m 365.76m 365.76m Measured Zone horizontally from the end of the primary surface and is the same length as the Approach-Departure Clearance Surface length. 13 Start of D 22.86m from 45.72m 22.86m Starts at the end of zone end of from from the primary surface. runway center of center of helipad helipad 14 Transitional Surface H 2H:1V See 2H:1V 2H:1V The Slope Remark 1 See See transitional surface Remark 1 Remark 2 starts at the lateral edges of the primary surface and the approach-departure clearance surface. It continues outward and upward at the prescribed slope to an elevation of 45.72m above the established airfield elevation.(2) the transitional surface starts at the lateral edges of the primary surface and the
4 Clear Zone Surface B See Table 3.6 See Table 3.2 See Table 3.2 5 Start of Approach Departure Surface C 22.86m from end of runway or landing lane 45.72m from GPI 22.86m from GPI 6 Length of Sloped Portion of C 365.76m 365.76m 365.76m Measured horizontally 7 Slope of Surface C 8:1 8:1 8:1 Slope ration is horizontal to vertical. 8:1 is 8 meters horizontal to 1m vertical. 8 Width of Sloped Portion of Approach-Departure Surface at start of sloped portion C 91.44m 91.44m 45.72m Centered on the extended centerline, and is the same width as the primary surface 9 Width of Sloped Portion of Approach-Departure Surface at End of Sloped Portion C 182.88m 182.88m 152.40m Centered on the extended centerline 10 Elevation of Surface at Start of Sloped Portion C 0m 0m 0m Above the established elevation of the landing surface. 11 Elevation of Surface at End of Sloped Portion C 45.72m 45.72m 45.72m Above the established elevation of the landing surface. 12 Length of Zone D 365.76m 365.76m 365.76m Measured horizontally from the end of the primary surface and is the same length as the Approach-Departure Clearance Surface length. 13 Start of zone D 22.86m from end of runway 45.72m from center of helipad 22.86m from center of helipad Starts at the end of the primary surface. 14 Transitional Surface Slope H 2H:1V See Remark 1 2H:1V See Remark 1 2H:1V See Remark 2 The transitional surface starts at the lateral edges of the primary surface and the approach-departure clearance surface. It continues outward and upward at the prescribed slope to an elevation of 45.72m above the established airfield elevation.(2) the transitional surface starts at the lateral edges of the primary surface and the
AED%20Design%20Requirements%20-%20Heliport%20Planning%20&%20Design_Mar-11.docx