1. From AIP COM 5.8.1
2. Canadian Private Civil Registration and Canadian or Foreign Carriers Without an Assigned Call Sign
3. (a) Initial contact: The manufacturer's name or the type of aircraft, followed by the last four letters of the registration.
4. Example: Cessna GADT (CESSNA GOLF ALFA DELTA TANGO).
5. Aztec-FADT (AZTEC FOXTROT ALFA DELTA TANGO)

1. If an air traffic controller abbreviates your call sign to the last three letters, you may do that too, but you are not permitted to anticipate this.

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2. The controller needs to record your complete call sign for Nav Canada records, so if you don't say the first letter, she will have to ask you, wasting everyone's time on frequency, "Alfa Bravo Charlie, are you a Foxtrot or a Golf?"

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3. This is the way it's supposed to be done, but most Canadian pilots and controllers don't say "over" at the end of transmissions.

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4. While in Canada, you don't need to say the "Charlie" at the beginning of the registration, because everyone's call sign starts with C. Flying a Canadian airplane in foreign countries you should say the C, as either "Charlie" or "Canadian." Some examples in the Radiotelephone Operator's Guide include the Charlie, but if you look at 5.8.1, the rule to omit the C. (The S&RG refers to 5.7.1, but the sections have been re-numbered).