Obstacle Limitation Surfaces · Obstacle Limitation Surfaces ICAO/FAA Airport Certification...
Transcript of Obstacle Limitation Surfaces · Obstacle Limitation Surfaces ICAO/FAA Airport Certification...
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Obstacle Limitation Surfaces
ICAO/FAA Airport Certification
Workshop for the Caribbean Region
Sint Maarten June11-15, 2012
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INTRODUCTION General overview of the Obstacle
Limitation Surfaces
The relationships of these standards to daily airport operations
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OBJECTIVE
Describe Key Obstacle Limitations surfaces
Identify the criteria for inspecting Obstacle Limitation surfaces
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Obstacle Limitation Surfaces
Defines “Obstruction to Air Navigation.”
Defines “Imaginary Surfaces.”
Requires notice to AIS
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Obstacle Limitation Surfaces
Assumes that the aircraft is operating normally
Provides volumes of airspace around and above an airport for an aircraft in normal flight
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Obstacle Limitation Surfaces
Obstacle: All fixed (temporary or permanent) and mobile objects or parts thereof that are located on an area intended for the surface movement of aircraft or that extend above a defined surface intended to protect aircraft in fight
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Obstacle Limitation Surfaces
Certificate holder shall give AIS and
shall arrange for ATC and the Flight Operations unit to receive immediate notice detailing any projection into the Obstacle Limitation Surfaces
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Obstacle Limitation Surfaces
Certificate holder shall remove from
the airdrome any vehicle or other obstruction that is likely to be a hazard
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Obstacle Limitation Surfaces
A certificate holder can consist of: A single city A single county Multiple cities, and Multiple counties Airport authority
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Obstacle Limitation Surfaces
Within its authority includes Other land owned by the certificate holder
golf courses city parks land fills aviation easements
Within other cities or counties if jointly owned
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Obstacle Limitation Surfaces
Eight Obstacle Limitation Surfaces: • Conical Surface • Inner Horizontal Surface • Approach Surface • Inner Approach Surface • Transitional Surface • Inner Transitional Surface • Balked Landing Surface • Take-off Climb
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Obstacle Limitation Surfaces
For the purposes of this presentation, we will only address: • Conical Surface • Inner Horizontal Surface • Approach Surface • Inner Approach Surface • Transitional Surface
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T-13-OBS
OBSTACLE LIMITATION SURFACES
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T-14-OBS
OBSTACLE LIMITATION SURFACES
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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
STRIP
Transitional Surface
Apch Surface Apch Surface Approach Approach
Inner edge
Distance from Threshold
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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 Surface Apch Surface Approach Inner Approach
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Obstacle Limitation SURFACES
Transitional Surface - A surface along side of the strip and part of the side of the approach
Lower edge along the side of the approach along the length of the strip Elevation lower edge - equal to side of approach and equal to the
nearest point of the center of the runway or its extension Slope 14.3%
Transitional Surface
Apch Surface Apch Surface Approach Approach
Lower edge
Strip
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Obstacle Limitation Surfaces Inner Horizontal Surface
45 m
STRIP
R/W
TRANSITIONAL
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COMMON IMPACTS TO OBSTACLE LIMITATION
SURFACES
STRIP
RUNWAY END
60 m
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COMMON IMPACTS TO OBSTACLE LIMITATION
SURFACES
STRIP
RUNWAY END
60 m
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COMMON IMPACTS TO OBSTACLE LIMITATION
SURFACES
SIDE EDGE OF STRIP
RUNWAY EDGE
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OBSTACLE LIMITATION SURFACES
Transitional Surface
Slope 14.3% Inner Horizontal Surface 45 m
STRIP Runway INNER APPROACH
APPROACH APPROACH
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OBSTACLE LIMITATIONS SURFACES
Use hand tools to estimate surface penetrations. i.e. hand level, clinometer, maps, approach slope surface guide, compass, measuring devices, etc.
If necessary, require survey by AO
Check marking and lighting condition
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Hand-held tools used to measure the value of a slope
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CLINOMETER
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Instructor demonstration
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CLINOMETER
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OBSTACLE LIMITATIONS SURFACES
Check AO’s system for obstruction reporting and airspace study compliance Ensure all lighted or marked
obstructions ARE in ACM
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The AIS The Obstacle data sheet The ACM Copy of the airport publications Clinometer Measuring wheel Approach Surface Sighting Guide
INFORMATION TOOLS AND EQUIPMENT
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OBSTRACLE EVALUATION
T-29-OBS
Centerline extended
Distance from runway end Height above Threshold
Distance from centerline
Pilots left
Pilots right
60 m ?
5 %
2%
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OBSTRACLE EVALUATION
T-30-OBS
Runway
STRIP
60-m
Close In Obstruction
Tree
Fence
APPROACH
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OBSTRACLE EVALUATION
T-31-OBS
60 m
Close in obstruction APPROACH
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Use a hand-held clinometer to estimate slopes and possible penetrations
If an object is suspected of being an obstruction
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ACSI TECHNIQUES
Tell the certificate holder to survey the object
Have the certificate holder issue the proper notices
Include suspicion in the inspection report to initiate an aeronautical study
Notify the airport that the object might need to be lighted, marked or removed
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Verify that required obstruction lighting and/or marking is in accordance with standards
Ensure that all locations of marked and/or lighted obstructions are in the ACM
Ensure that the airport has a system for
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ACSI TECHNIQUES
Reporting objects as required
Assuring compliance with aeronautical studies
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REFERENCE MATERIAL
Annex 14 Volume 1 Aerodrome Design and Operations
DOC 9774 Manual on Certification of Aerodromes
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QUESTIONS?