Icao Doc 8168 Vol 2 Apr 2026

: Providing design rules for the five segments of an instrument approach: arrival, initial, intermediate, final, and missed approach.

: Establishing parameters for turn areas, including wind spirals and bank angles, to ensure aircraft stay within protected airspace. Icao Doc 8168 Vol 2

, formally titled "Construction of Visual and Instrument Flight Procedures," is the essential technical manual for procedure design specialists. While Volume I is designed for flight crews, Volume II provides the complex mathematical criteria and obstacle clearance requirements needed to build safe, regular instrument flight operations worldwide. Core Purpose and Scope : Providing design rules for the five segments

: Grouping aircraft by stall speed to determine specific obstacle clearance altitudes (OCA/H) for each type. Key Technical Components While Volume I is designed for flight crews,

: Defining the minimum vertical separation (MOC) required between an aircraft and any terrain or man-made obstacles.

Procedures for Air Navigation Services (PANS) - Aircraft Operations