Radio Telephony

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Civil Aviation Publication 413

CAP 413 is the Radiotelephony Manual and is available on the CAA website in a pdf document, size 3.4mb. You can save a copy to your computer so that you can reference it. The link below will take you to the document.

CAP 413

RT Navigation

Transmission of Letters

The words in the table below shall be used when individual letters are required to be transmitted. The syllables to be emphasised are underlined.

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Transmission of Numbers

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Practical

Before take off you need to listen to ATIS (Automatic Terminal Information Service ) for flight information.

At Southend this is on frequency 136.050
(Wun tree six dayseemal zero fife zero)

THe ATIS broadcast is changed every hour and each broadcast has a letter designated, so that the controllers know that you have the correct departure information.

You will get the following information.

Information – this is a letter ( Alpha, Bravo, etc)

Runway in Use

Surface wind direction & speed

Visibility

Cloud information

Air temperature and Dew point

QNH (Altitude)

QFE (Height)

Departing aircraft contact tower on 127.725 on first contact report altimeter setting & info received

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The first call you are likely to make will go something like:-

	"southend tower, golf alpha victor uniform uniform"
	"golf alpha victor uniform uniform, pass your message"
	"golf alpha victor uniform uniform, PA28 at southend flying club, request taxi for a local flight to the north. I have information Oscar QNH 1032" 2 POB (persons on board)
CAP413 - Chapter 2 - 1.8.2 After satisfactory communication has been established and provided that no confusion is likely to occur, the ground station may abbreviate callsigns. A pilot may only abbreviate the callsign of his aircraft if it has first been abbreviated by the aeronautical station.
	"golf uniform uniform, taxi holding point alpha 1, for runway 24 via taxiway charlie"
	"taxi holding point alpha 1, for runway 24 via taxiway charlie, golf uniform uniform"
After taxying to A1 and completing your power and pre take off checks
	"golf uniform uniform, ready for departure"
	"golf uniform uniform, right turn after take off, VFR, cleared for take off"
	"cleared for take off, golf uniform uniform"

CAP 413 states that you should maintain an even rate of speech not exceeding 100 words per minute.

So the call below should take around 15 Seconds - have a practice.

GAVUU is a PA28 at Southend Flying Club
We have information Alpha, QNH 1012
2 POB
Request taxi for a local flight to the north.

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Readback

The ATS messages listed below are to be read back in full by the pilot. If a readback is not received the pilot will be asked to do so. Similarly, the pilot is expected to request that instructions are repeated or clarified if any are not fully understood.

Taxi/Towing Instructions
Level Instructions
Heading Instructions
Speed Instructions
Airways or Route Clearances
Approach Clearances
Runway-in-Use
Clearance to Enter, Land On, Take-Off On, Backtrack, Cross, or Hold Short of any Active Runway
SSR Operating Instructions
Altimeter Settings
VDF Information
Frequency Changes
Type of Radar Service
Transition Levels

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