What is the objective of the obstacle limitation surfaces?

What is the objective of the obstacle limitation surfaces?

Obstacle control surfaces are necessary to ensure that the existing and planned aeroplane operations at the aerodrome are able to be conducted safely and to prevent the aerodromes from becoming unusable. The two following sets of surfaces are intended to meet this purpose.

What is Obstacle Identification Surface?

Obstruction identification surfaces (OIS) determine which objects are vertical obstructions. An object is considered a vertical obstruction if it penetrates the OIS surface. Surfaces are used to support planning and design activities.

What is the purpose of the aerodrome?

In formal terminology, as defined by the International Civil Aviation Organization (ICAO), an aerodrome is “a defined area on land or water (including any buildings, installations, and equipment) intended to be used either wholly or in part for the arrival, departure, and surface movement of aircraft.”

What is approach surface?

An imaginary surface longitudinally centered on the extended centerline of the runway, beginning at the end of the primary surface and rising outward and upward to a specified height above the established airport elevation.

What is transitional surface?

Transitional Surface: A surface extending outward and upward, at right angles to the runway centerline and runway centerline extended, from the sides of the Primary Surface and the Approach Surfaces. The slope is 7-1 (14.3 percent) and the surface extends until it intersects the Horizontal or Conical Surface.

What are the criteria for inspecting Obstacle Limitation Surfaces?

Describe Key Obstacle Limitations surfaces Identify the criteria for inspecting Obstacle Limitation surfaces Obstacle Limitation Surfaces Defines “Obstruction to Air Navigation.” Defines “Imaginary Surfaces.” Requires notice to AIS Obstacle Limitation Surfaces

What is the inner edge of an obstacle limitation surface?

Inner edge Distance from Threshold Obstacle Limitation SURFACES Inner Approach – A rectangular portion of the approach: – Inner edge coincident with inner edge of approach – Distance from threshold 60 m – Length 900 m – Slope 2.5% to 2% Transitional Surface Apch SurfaceApproach Inner Approach Obstacle Limitation SURFACES

Who are the certificate holders of Obstacle Limitation Surfaces?

Obstacle Limitation Surfaces A certificate holder can consist of: A single city A single county Multiple cities, and Multiple counties Airport authority Obstacle Limitation Surfaces Within its authority includes Other land owned by the certificate holder golf courses city parks land fills aviation easements

How big is an obstacle on a T-13 OBS?

T-13-OBS OBSTACLE LIMITATION SURFACES T-14-OBS OBSTACLE LIMITATION SURFACES Obstacle Limitation Surfaces Approach Surface: PIR Codes II or III –Length Inner Edge 150-300 m –Distance from Threshold 60 m PIR Slope: 2.5% to 2 % 50:1 Length: 3000 m Elevation equal to mid point of runway