The first solar aircraft aiming to fly night and day without fuel will be unveiled in Switzerland on 26 June.
The prototype aircraft, called the HB-SIA, has been developed through Solar Impulse, a project run by Swiss aviators Bertrand Piccard and André Borschberg.
The aircraft, which has been under construction since 2007, combines a lightweight 1,500kg structure with a 61m wingspan and a length resembling that of an Airbus 340. The difference is these wings are covered in a thin sheet of solar cells that convert the sun’s rays into electricity that drives the machine’s engines.
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