CAP 413
Radiotelephony Manual
Chapter 10 Page 17
3.18
Suspension of RT Procedures
Aircraft may require to operate in a specified area or on an area of an aerodrome
without making RTF transmissions that would normally be required.
The request to
suspend such transmissions is referred to as operating 'negative RT' and the
associated phraseology is as follows:
* The time between Ops Normal calls will be covered in local flying orders.
3.19
Formations in Trail
The request for conducting a trail approach shall be made as follows:
3.20
Contact Lost
The term "Contact Lost" when used by a pilot refers to a situation where one or more
elements of an aircraft formation loses visual or station keeping equipment contact
with one or more elements of the formation. In this instance the formation will invoke
standard procedures to establish separation between the elements and the controller
must be prepared for a request to identify individual formation elements in order to
provide a service and potentially pass instructions aimed at allowing the formation to
rejoin. Upon losing contact within a formation, pilots may set transponder code to
7700.
3.21
Freecall and Continue With
The term "Freecall" is used by a controller to indicate to the pilot that landline
communication to the next controller has not been possible prior to transfer position.
The pilot should then be prepared to give full position, heading and level information
to the next controller.
The term "Continue With" is used by a controller to indicate to the pilot that his flight
details and profile have been prenoted to the next controller, but it is not possible to
effect a formal radar handover.
Rotor 99, request operate for
(number) minutes no RT
southside
Rotor 99, negative RT approved, for
(number) minutes, remaining
southside
Rotor 99, request Ops normal*
Rotor 99, Ops normal
Rotor 99, operate full RT
Operating full RT, Rotor 99
(Callsign), request trails approach
[(number) aircraft or elements]
(Callsign), trails approach approved
Ranger 22, unable to arrange a
handover to Wadford, your position
10 miles east of Smallville, freecall
Wadford Approach 345.675
Freecall Wadford Approach 345.675,
Ranger 22
31 March 2011
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