ABU DHABI: Solar Impulse 2 was on Monday approaching the end of its epic bid to become the first sun-powered airplane to circle the globe without a drop of fuel to promote renewable energy.
When the experimental aircraft touches down in Abu Dhabi in the early hours of Tuesday it will cap a remarkable 42,000-kilometre journey across four continents, two oceans and three seas.
With Swiss explorer and project director Bertrand Piccard in the cockpit, the plane is due to land at Al-Bateen Executive Airport in the UAE capital where it launched its tour on March 9, 2015.
On Monday Solar Impulse 2 was flying over the Saudi desert north of Riyadh, heading towards the Gulf.