CAP 413
Radiotelephony Manual
Chapter 5 Page 6
1.5.4
A controller may not know the aircraft’s heading but does require the aircraft to fly a
particular heading.
or,
1.5.5
The controller may instruct the aircraft to fly a particular heading after passing a
specific point.
1.5.6
When vectoring is complete, pilots will be instructed to resume their own navigation,
given position information if considered necessary by the controller and appropriate
instructions as necessary. Where a direct route is required, the controller shall include
this in the instructions.
1.5.7
Occasionally an aircraft may be instructed to make a complete turn (known as an orbit
or a 360 degree turn), for delaying purposes or to achieve a required spacing behind
preceding traffic.
NOTE:
360 turn spoken as “TREE SIXTY TURN”
1.6
Traffic Information and Avoiding Action Phraseology
1.6.1
Whenever practicable, information regarding traffic on a possible conflicting path
should be given in the following form:
a) relative bearing of the conflicting traffic in terms of the 12 hour clock with the
optional prefix ‘left or right’ as appropriate; or, if the aircraft under service is
established in a turn, the relative position of the conflicting traffic in relation to
cardinal points i.e. northwest, south etc.;
G-CD, fly heading 275
Roger, turning left heading 275,
G-CD
Roger, turning right 20 degrees
heading 275, G-CD
BIGJET 347, leave Wicken heading
245
Leave Wicken heading 245, BIGJET
347
BIGJET 347, resume own navigation
direct Wicken, magnetic track 075
distance 27 miles
Wilco, BIGJET 347
G-CD, resume own navigation
Walden position is 15 miles
southeast of Westbury
Wilco, G-CD
G-CD, for spacing orbit left
Orbit left, G-CD
BIGJET 347, for spacing make a 360
turn left
360 turn left, BIGJET 347
17 November 2011
Summary of Contents for 413
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