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Australian teen is youngest to make solo around-the-world flight

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An Australian teenager has flown around the world and into the record books.

At 18 years old, Lachlan Smart is the youngest person ever to fly around the world in a single engine aircraft, by himself.

The journey was 24,000 air-miles long, and he stopped in 15 different countries along the way.

54 days after setting off, Lachlan got a big welcome as he touched down back home in eastern Australia.

Leah's been taking a look at how he did it.