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Civil Aviation Forum | Callsigns with "Heavy"
Aircraft call signs will use the suffix "heavy" for heavy aircraft, to indicate an aircraft that is going to cause significant wake turbulence, e.g. United Two-Five Heavy; All aircraft capable of operating with a gross take-off weight of more than 300,000 lbs. must use this suffix whether or not they are operating at this weight during a particular phase of flight. These are typically Boeing 747, some models of the 757, 777, or 767, Airbus A340, A330 and A300, McDonnell Douglas DC-10 or MD-11, or Lockheed L-1011 aircraft. The suffix "super" is used for the Airbus A380.
Use of Heavy and Super more prevalent in States whereas in the UK you will hear it a lot less.
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