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Wednesday 26 October 2016

Solar plane grounded by bad weather

Published 01/06/2015 | 09:21

The Solar Impulse 2 takes off from Nanjing Lukou International Airport in Nanjing, eastern China (AP)
The Solar Impulse 2 takes off from Nanjing Lukou International Airport in Nanjing, eastern China (AP)

A solar-powered plane attempting to circle the globe without a drop of fuel has made an unscheduled landing in Japan to wait out bad weather.

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Swiss pilot Andre Borschberg took off from Nanjing, China, on Sunday on what was to be the longest leg of the journey, a six-day, 8,175-kilometre (5,079-mile) flight to Hawaii.

Instead, the Solar Impulse 2 made an unscheduled visit in central Japan, and landed safely at the Nagoya Airport.

Japanese Transport Ministry and Nagoya airport officials said earlier that they were arranging for the landing to occur after the airport's usual closing hours to accommodate the plane with a wide wingspan.

Live Internet feed on the organisers' website showed crew members in the control room applauding and cheering at the landing. Mr Borschberg, who emerged from the cockpit with a full smile, was mobbed by the project's ground staff welcoming his safe arrival.

Bertrand Piccard - initiator, chairman and co-pilot of Solar Impulse 2 - told the organiser's live feed, Solar Impulse TV, that it was unfortunate the weather turned bad when the flight was going very well. He said the plane will continue its journey to Hawaii when the weather improves.

"You know, it's one of these strange moments of life between elation and disappointment," he said.

"The team has achieved the longest flight ever of a solar plane going through the night, but the front is too dangerous to cross ..."

"It's just the weather doesn't fit. Everything we could do has been done and was successful. What we cannot control is the weather. So we land in Nagoya, we wait for better conditions, and we continue," he added.

Elke Neumann, a spokeswoman for the Solar Impulse project, said from Nanjing that the team had noticed the weather more than a day ago.

"We thought we might go through it," she said. "But between Japan and Hawaii there's no place to stop."

The safety of the pilot and the plane are a priority, and they will likely wait a few days in Japan until the weather changes, she said.

Solar Impulse 2 needs room to land, so it generally avoids times when commercial flights are operating, Ms Neuman said. The plane also usually lands at night, because the winds tend to be lower. It needs wind to be no more than 10 knots, she said.

At the time of landing, the plane's batteries were still 74% charged, according to the organiser website.

The journey started in March in Abu Dhabi, and the plane has stopped in Oman, India, Myanmar and China. The flight from Nanjing to Hawaii is the seventh of 12 flights and the riskiest.

Press Association

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