The obstacle-free zone (OFZ) is a 3D volume of
airspace below , above the established airport elevation which protects for the transition of aircraft to and from the runway. The Obstacle Free Zone (OFZ) clearing standard precludes
taxiing and parked airplanes and object penetrations, except for
frangible
A material is said to be frangible if through deformation it tends to break up into fragments, rather than deforming elastically and retaining its cohesion as a single object. Common crackers are examples of frangible materials, while fresh bre ...
navigation aid (
NAVAID) locations that are fixed by function. It is centered above the runway and the extended runway centerline and is intended to provide clearance protection for aircraft landing or taking off from the runway and for missed approaches.
The OFZ is subdivided into:
*Runway OFZ, the airspace above a surface centered on the runway centerline
*Inner-approach OFZ, centered on the extended runway centerline and applicable only to runways with an approach lighting system
*Inner-transitional OFZ, the airspace above the surface located on the outer edges of the runway OFZ and the inner-approach OFZ; applicable only to runways with an approach visibility minimum lower than
See also
*
Index of aviation articles
Aviation is the design, development, production, operation, and use of aircraft, especially heavier-than-air aircraft. Articles related to aviation include:
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Aviation accidents and incidents
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References
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Aviation safety