CAP 413, Руководство пользователя

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CAP 413 Radiotelephony Manual
Chapter 2 Page 18
1.15.3 In the case of an anticipated infringement of legislation the controller is to warn the
pilot that if he does take-off the facts will be reported to the appropriate authority.
1.16 Simultaneous Transmissions
1.16.1 Direct communications between pilots and ATSUs can be adversely affected by
simultaneous transmissions which, effectively, block all or part of intended
messages. Moreover, whilst the situation may be apparent to the controller or
another pilot, the individuals who inadvertently make such transmissions may be
unaware. On hearing a simultaneous transmission it can be helpful for the controller
(or another pilot if it is the controller’s transmission which has been blocked) to draw
attention to the situation using the word ‘blocked’.
1.16.1.1 Controller Example (where pilots have transmitted simultaneously):
1.16.1.2 Pilot Example (where another pilot has blocked a controller’s transmission):
1.17 Complying with Clearances and Instructions
1.17.1 Pilots are expected to comply with clearances and instructions promptly,
commensurate with normal aircraft operations. If, for any reason, a pilot does not
wish to comply with an instruction promptly, the pilot should advise the ATS unit and
give an indication of when he intends to comply.
1.17.2 If an ATS unit wishes to indicate that time of compliance is at the pilot's discretion,
the ATS message will include the phrase 'when ready'.
1.17.3 If an ATS unit wishes to indicate that the clearance or instruction is required to be
complied with at a particular point in the flight, the message will include the phrase
'after passing'.
1.17.4 If an ATS unit wishes to indicate that the instruction or clearance must be complied
with at once, the controller's message will include the word 'now' or 'immediately'.
Use of the word 'now' indicates that the instruction should be complied with in
accordance with normal aircraft operating procedures, but without delay. Use of the
word 'immediately' indicates a further degree of urgency exists (e.g. to avoid flight
into terrain or restricted airspace, or for the provision of collision avoidance, see
Chapter 5 Paragraph 1.6.4 Avoiding Action Phraseology). In such circumstances, the
pilot should take action to comply with the instruction as soon as practicable, subject
to the safety of the aircraft.
G-ABCD, your planned flight appears
to contravene legislation because
the required minima for VFR flight
are not present. If you take off I shall
be required to report the facts.
Acknowledge
Transmission Blocked – (callsign if
known) say again
Transmission Blocked – Wrayton say
again, BIGJET 345
31 March 2011