A Swiss-made solar-powered aircraft took off just after dawn on Tuesday from Muscat, Oman, bound for India for the second leg — and its first sea crossing — in a historic round-the-world trip.
Pilot Bertrand Piccard was at the controls of the single-seater Solar Impulse 2, which is making the 1,465-kilometre journey from Muscat to Ahmedabad without a drop of fuel.
It will take an estimated 16 hours of flying as it crosses over the Arabian Sea to India.
Swiss pilot Bertrand Piccard, left, and his compatriot Andre Borschberg pose for a picture before flying with the Solar Impulse 2 from al-Bateen airport in Abu Dhabi. (Marwan Naamani/AFP/Getty Images)
The aircraft's wings are covered by more than 17,000 solar cells that recharge the plane's batteries. It flies ideally at around 25 knots, or 45 km/h.
On Monday, Andre Borschberg, who co-founded the Solar Impulse company that built the plane, flew the Si2 from Abu Dhabi, the capital of United Arab Emirates, to nearby Oman in the first leg of the epic journey.
The Swiss explorers say their aim is to highlight the importance of renewable energy and the spirit of innovation. They say the visionary journey is a "strong message for clean technologies."
Si2 is slated to make 12 stops during its 35,000-kilometre journey, including in China and Myanmar, before it crosses over the Pacific Ocean. It will then land in Hawaii and the U.S. Midwest and East Coast before flying over the Atlantic Ocean. It may also stop in southern Europe or North Africa, depending on weather conditions.
Some legs of the trip, such as over the Pacific and Atlantic oceans, will mean five days and five nights of flying solo. Both pilots, who are trading off piloting duties, have been training hard for the journey, which will span 25 flight days over five months.
The Si2 aircraft has a wingspan of 72 metres, larger than a Boeing 747 jumbo jet. At around 2,300 kilograms, the Si2 weighs about as much as a minivan or mid-sized truck. An empty Boeing 747, in comparison, weighs some 180,000 kilograms.
The aircraft's journey can be followed online at www.solarimpulse.com.
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