Obstacle Surface Identification - Ellipsis

Obstacle Surface Identification - Ellipsis

Obstacle Surfaces Identification Not to Scale ICAO Specs ICAO Annex 14 TO THE CONVENTION ON INTERNATIONAL CIVIL AVIATION, VOLUME I, AERODROME DESIGN AND OPERATIONS, Lateral Surfaces Not to Scale Runway Not to Scale Runway Strip and Runway End Safety Area For the purposes of determining obstacles on the sides

of the runway, the Runway Strip is referenced horizontally to the runway ends and vertically to the highest threshold on the facility. It extends 300m (240m beyond 60m strip) from each runway end and 150m on either side of the centerline. 150m m 300 Not to Scale 150m Transitional Surface The transitional surfaces extend outward (perpendicular to the centerline of each runway) from the edges of the Runway strip 315m, at a 1:7 slope upward to a height 45m above the published reference elevation of the aerodrome ome r

d o r he ae t f o vation e l e e c feren e r d blishe u p e

ve th o b a 45 m 1: 45m Tr l a n o i ansit 7S e

lo p 5m 31 5 46 m Not to Scale Inner Horizontal Surface The inner horizontal surface for each runway is defined by 2 half circles centered on the runway ends and joined by tangents. The radii of the half circles is 4000m and the tangents are parallel to the runway centerline at a distance of 4000m. The surface is a constant 45m above the published reference elevation of the aerodrome rence e f e

r d blishe u p e h rome t d e o r v e o a b 45m a ation of the elev al

400 0 t n o z i r Ho r e n n I m 4000m

CL Not to Scale n of the 150 m above the published reference elevatio Conical Surface Conical 6100m 150m 1:2 4000 m 0S e lop

The inner edge of conical surface for each runway begins at the outer edge of the inner horizontal surface. Its outer edge is defined by 2 half circles centered on the runway ends and joined by tangents. The radii of the half circles is 6100 m and the tangents are parallel to the runway centerline at a distance of 6100 m. The surfaces extend 2100 m horizontally and are sloped at a 1:20 ratio. The outer edge is 150 m above the height of the published reference elevation of the aerodrome

610 0m aerodrome m 2100 Not to Scale CL Outer Horizontal 800 0 m 8000m The Outer Horizontal surface begins at the outer edge of the conical surface

and extends outward to a distance of 8000 m from the endpoints and centerline of the runway at a constant height of 150 m above the published reference elevation of the aerodrome 150m Outer Horizontal Surface CL Not to Scale Oute r Ho rizo

ntal Co l a nic Recap of Lateral Surfaces Inn er H oriz ont a l l

itiona s n a r T Runw a y St rip Not to Scale CL Approach/Departure Surfaces 240m min 15% divergence (9 Degrees) RESA runway end safety area Not to Scale

Runway Strip and Clearway For the purposes of determining obstacles on the sides of the runway, the Primary Surface is referenced horizontally to the runway ends and vertically to the highest threshold on the facility. It extends 300 m from each runway end and 150 m on either side of the centerline. For the purposes of determining obstacles in the approach/departure zones, the horizontal and vertical point of reference is the runway Threshold Not to Scale 150m m 300 150 m Approach/Departure Surfaces 1:50 Surface vertical reference is the height of the runway threshold

300m 150m Above lowest Runway end on airport 1:50 Slope ~8 000m 1:50 Surface horizontal reference is 60 m from the runway end Not to Scale 15 000m The runway and stopway is included in the runway strip 60

m At the end of the runway 150m Runway strip CL 150m Runway strip 60 m Not to Scale If no object reaches the 2 per cent (1:50) take-off climb surface, new objects shall be limited to preserve the existing obstacle free surface or a surface down to a slope of 1.6 per cent (1:62.5). est port w lo e air

e h h t v e on t o ab end m h 150 roac p ap 1:50 ( 1: Fi rs ts n

62.5) Slope ~8 000m Not to Scale ec tio The 1:50 Sloped surface Side view ex te nd st o 30

00 H eig ht m of ap pr Threshold oa c h en

d 60 m At the end of the runway 150 m 300m 150 m Not to Scale 60m The 1:50 Sloped surface Not to Scale

150m above the lowest approach end on the airport Not to Scale 150m m 300 15 0m At the end of the runway Side View Not to Scale 150M above the lowest approach end on the airport 1:50 Slop

e 15 000m 60 m ~8 000m Threshold The flat approach departure surface Not to Scale owest ort l e h t airp above

150m h end on the ac appro 0 ~15 0 0m 0m ~8 00 150m m 300 15 0m Approach/Departure Surfaces 1:50 Surface vertical reference

is the height of the runway end point 300m 150m Above lowest approach end on airport 1:50 Slope ~8 000m 1:50 Surface horizontal reference is 60m from the runway end Not to Scale 15 000m + Transitional Not to Scale + Inner Horizontal

Not to Scale + Conical Not to Scale + Outer Horizontal Not to Scale Obstacle Identification Surfaces Not to Scale

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