Page 29 - GEN - 2025

5.2.1 Aircraft full Call Sign

An aircraft callsign shall be one of the following types:

- Type A aircraft registration marking e.g. SE-GPD Note: this can be prefixed by the
name of the aircraft manufacturer or aircraft model Piper SE-GPD)

- Type B operating agency designator plus last 4 characters of the registration:
SCANDINAVIAN ABCD

- Type C operating agency designator plus flight number SCANDINAVIAN 939

5.2.2 Aircraft Abbreviated Call Sign

Abbreviated call signs shall be used only after satisfactory communications have

been established and provided no confusion is likely to arise.

Only air traffic control may initiate abbreviation of aircraft call signs. Thereafter
the pilots may use abbreviations but must use full call signs if changing to

another station.

The call signs would be abbreviated as follows:
- Type A: The first character plus at least two last characters:

o “SE-GPD” becomes “S-PD” or “S-GPD”.
▪ Note: either the name of the aircraft manufacturer or the aircraft model may

be used in place of the first character: “Piper SE-GPD” becomes “Piper PD” or
“Piper GPD”.

- Type B: The operating agency designator followed by at least two last
characters:

o ”SCANDINAVIAN ABCD” becomes “SCANDINAVIAN CD” or

SCANDINAVIAN BCD”.
- Type C: No abbreviation.

Examples of Full and Abbreviated Call signs

GEN radio 2025 - Midtjysk Flyveskole 29