There was a treat for plane spotters at Adelaide Airport this morning as a gigantic Antonov aircraft touched down.

With a length and wingspan both well over 80 metres, the Russian-built cargo planes are among the largest ever made.

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They come into Adelaide typically about once a year, usually carrying large mining or military equipment.

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This aircraft landed at about 7.30 this morning.

It will refuel and take off again at about 8am tomorrow.