When is adding "Heavy" to callsign apropriate?

As the title says it. Is the callsign related to aircraft size or weight? I know that the A380 is i think the only plane in IF to use Super, but idk where the lowest limit is for using Heavy. Is the A330 maybe the smallest that can use Heavy?

Hey Ivan! The term heavy is used for any aircraft which has been assigned a maximum takeoff weight (MTOW) rating of 136 tons (300,000 lb) or more. These aircraft create wake turbulence from their wings and require extra separation between following aircraft, and the use of “heavy” reminds other pilots of that fact. This is only used in the US I believe.


I use heavy on any above A340 size! @Ivan0921

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Aircraft include the 747, 767, 777, 787, A330, A340, A350, DC-10, and MD-11.

All depends on the weight that Luca provided, though.


Also you add “Super” for A380.


@Thunderbolt @lucaviness @PilotChrisSG thanks for the info!

Mods might as well close this now :)

You can use heavy in any plane on IF of course, it isn’t offensive at all.

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OP requested closure.