Aircraft Operations

Part I — Section 4, Chapter 6
I-4-6-3
6.4.2 Turning missed approach
6.4.2.1 Turns in a missed approach procedure are only prescribed where terrain or other factors make a turn
necessary.
6.4.2.2 If a turn from the final approach track is made, a specially constructed turning missed approach area is
specified. See Section 2, Chapter 3, “Turn Area Construction”.
6.4.3 Airspeed
6.4.3.1 The protected airspace for turns is based on the speeds for final missed approach (see Tables I-4-1-1 and
I-4-1-2).
6.4.3.2 However, where operationally required to avoid obstacles, the IAS as slow as for intermediate missed
approach may be used. In this case, the instrument approach chart contains the following note: “Missed approach turn
limited to ________ km/h (kt) IAS maximum”.
6.4.3.3 In addition, where an obstacle is located early in the missed approach procedure, the instrument approach
chart is annotated “Missed approach turn as soon as operationally practicable to __________ heading”.
Note.— Flight personnel are expected to comply with such annotations on approach charts and to execute the
appropriate manoeuvres without undue delay.
6.4.4 Turn parameters
The parameters which are common to all turns appear in Table I-2-3-1 in Section 2, Chapter 3, “Turn Area
Construction”. The following parameters are specific to turning missed approaches:
a) bank angle: 15° average achieved;
b) speed: see 6.4.3, “Airspeed”;
c) wind: where statistical data are available, a maximum 95 per cent probability on an omnidirectional basis is
used. Where no data are available, omnidirectional wind of 56 km/h (30 kt) is used; and
d) flight technical tolerances:
1) pilot reaction time: 0 to +3 s; and
2) bank establishment time: 0 to +3 s.
23/11/06