The British adventurer James Ketchell has taken off as he attempts to be the first person to fly around the world solo in a gyrocopter.

The 37-year-old will fly over 22,800 nautical miles across 13 different countries including France, Lithuania, Russia, Canada and Greenland, before arriving back in England in six months’ time.

The gyrocopter travels at 70 knots, with a range of 700 nautical miles.

During his trip he will stop at schools in every country he visits to give motivational talks and raise money for two charities, Kindled Spirit, which supports victims of trafficking, and Over the Wall, which supports children and young people facing serious health challenges.

On Sunday, crowds gathered at Popham airfield in Hampshire to wave him off before he left on Monday to fly across the Channel from Goodwood, Sussex.

Ketchell, from Basingstoke, Hampshire, is also the first British man to have rowed solo across the Atlantic Ocean and reached the summit of Mount Everest. In 2015, he attempted to row across the Indian Ocean but had to be rescued 200 miles from the coast of Australia after his rowing partner sustained an injury.

He said: “I had no idea three or four hundred people were just going to turn up to wave this lunatic off, it’s all a bit surreal really. It’s doable – but I’m just taking it day by day. It’ll probably take me about six months, that’s the plan.

“Hopefully I can achieve my objective of speaking at a school in every country, trying to inspire some young kids to believe in themselves and do things – that’s the mission.

“I enjoy working with kids and for some reason they listen to me. Maybe it’s because I’ve done a few cool things. Maybe they won’t listen to me in 10 years when I’ve lost my hair or gone grey.”

Ketchell’s trip can be tracked in real-time online through his website as he sets out to inspire “1 million young people” on his journey.

Asked what had motivated him to become involved in working with children, he said: “When I was a young teenager I just really struggled. I had no motivation, I left school without one qualification. I didn’t really have any ambition or drive, I was lazy. When I left school I got fired from jobs, left, right, and centre – I spent a lot of time just lying around in bed.

“I never really believed in myself or wanted to anything. I was probably a bit depressed really, but didn’t know or understand how the brain works. I had a very nasty motorcycle accident and that was really the catalyst for rowing across the Atlantic – I’d always wanted to but never had the guts to do it.

“I was very insecure when I was younger and always worried about what other people would think of me. But when I had that accident and the doctor said, ‘well mate, you may never walk again’, I thought that I needed something to aim for and I did it.”