This document discusses ICAO Annex 14 Chapter 4 which relates to obstacle restriction and removal. It provides images and descriptions of various surfaces around airports that must be kept clear of obstacles, including the outer horizontal surface, conical surface, inner horizontal surface, approach surfaces, inner approach surface, transitional surfaces, inner transitional surfaces, balked landing surface, obstacle free zone, and take-off climb surface. The images can be used worldwide if credit is provided to the author.
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ICAO Annex 14 Chapter 4 Obstacle Restriction
1. ICAO Annex 14 Chapter 4. OBSTACLE RESTRICTION AND REMOVAL.
OACI Anexo 14 CAPÍTULO 4. RESTRICCIÓN Y ELIMINACIÓN DE
OBSTÁCULOS
• Author: Ir. Herwig Callebaut Flanders Belgium Europe herwig.callebaut@gmail.com
• Working Languages: Dutch / French / English
• The use of these images is allowed worldwide provided the mentioning of the name and e-mailadress of the Author. – Antwerp 1.7. 2009.
2. Outer horizontal surface
Superficie horizontal externa
• The use of these images is allowed worldwide provided the mentioning of the name and e-mailadress of the
Author. Antwerp 1.07.2009.
3. Conical surface
Superficie cónica
The use of these images is allowed worldwide provided the mentioning of the name and e-mailadress of the Author. Antwerp 1.07.2009.
4. Inner horizontal surface
Superficie horizontal interna
• The use of these images is allowed worldwide provided the mentioning of the name and e-mailadress of the Author. Antwerp 1.07.2009.
5. Approach surface - transitional surfaces
Superficie de aproximación – superficies de transición
The use of these images is allowed worldwide provided the mentioning of the name and e-mailadress of the Author. Antwerp 1.07.2009.
6. Approach surface; first, second and horizontal section
Superficie de aproximación; primera, segunda sección y sección
horizontal
• The use of these images is allowed worldwide provided the mentioning of the name and e-mailadress of the Author. Antwerp 1.07.2009.
7. Inner approach surface
Superficie de aproximación interna
The use of these images is allowed worldwide provided the mentioning of the name and e-mailadress of the Author. Antwerp 1.07.2009.
8. Transitional surface
Superficies de transición
The use of these images is allowed worldwide provided the mentioning of the name and e-mailadress of the Author. Antwerp 1.07.2009.
9. Inner transitional surfaces
Superficie de transición interna
The use of these images is allowed worldwide provided the mentioning of the name and e-mailadress of the Author. Antwerp 1.07.2009.
10. Balked landing surface
Superficie de aterrizaje interrumpido
• The use of these images is allowed worldwide provided the mentioning of the name and e-mailadress of the Author. Antwerp 1.07.2009.
11. Obstacle Free Zone (OFZ)
Zona despejada de obstáculos (OFZ)
The use of these images is allowed worldwide provided the mentioning of the name and e-
mailadress of the Author. Antwerp 1.07.2009.
12. Take-off climb surface
Superficie de ascenso en el despegue
• The use of these images is allowed worldwide provided the mentioning of the name and e-mailadress of the Author. Antwerp 1.07.2009.