Page 255 - Planning and Design of Airports
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4,000
                                  A
                            D
                                     7:1
                               7:1
               A
                     C
                                     7:1
                            E
                               7:1
                          B
                                          50:1 7:1  7:1  7:1  E  7:1  7:1  7:1  HORIZONTAL SURFACE  150 FEET ABOVE ESTABLISHED AIRPORT  ELEVATION  20-1 CONICAL SURFACE
                                         40:1     7:1
                                                                  FAR part 77 imaginary surfaces.
                                    7:1



                                          40:1           7:1

                             7:1



                                                                  FIGURE 6-25
                            5,000
                                           A  16,000       5,000




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