Embarking On The Lonely And Longest Part Of Solar Impulse 2’s Round-The-World Journey

The Solar Impulse 2 has embarked on the most challenging leg of its ambitious global journey. At least five days and five nights lay ahead for the solar powered aircraft as it makes the trip from Japan to Hawaii. Having just passed the point of no return over the Pacific Ocean, Solar Impulse 2 has already made its mark on aviation history.

Solar Impulse 2 takes off from Japan for Hawaii | Aerospace Manufacturing and Design

“The attempt to reach Hawaii from Japan to encourage the use of clean technologies is the longest exploration leg of the Solar Impulse’s round-the-world mission.  This flight is demanding and challenging particularly given its duration: 120 hours on solar power only. It is a feat never accomplished before in the world of aviation. At t 8:32am UTC on June 29, the end of Solar day 1, Si2 reached Energy Neutral Evening – the moment it no longer collects energy from the sun and starts using the energy in the batteries. The aircraft descended from 28,000ft down to minimum flight level for the night of 8 000ft.”

Provided the remainder of the flight goes smoothly for pilots Bertrand Piccard and André Borschberg, the Solar Impulse 2 could change the way we think about alternatively powered flight.

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