Solar Impulse 2 passed PNR - Is it in trouble again? GS only 9kts now

This computation is dificult to comprehend since the aircraft now has only flown 1/6th of the distance to Hawaii, perhaps even less. At 16.45 GMT the aircraft is literally parked.

Solar Impulse passes 'point of no return' over Pacific

By Rebecca Morelle Science Correspondent, BBC News

• 5 hours ago
• From the section Science & Environment

The plane has a bigger wingspan than a jumbo jet but is incredibly light

A solar-powered plane has passed the "point of no return" in its second bid at making a record-breaking flight across the Pacific Ocean.

Solar Impulse took off from Japan's Nagoya Airfield at 18:03 GMT on Sunday.
The journey to Hawaii is expected to take approximately 120 hours.
The team spent nearly two months waiting for clear weather to cross the Pacific, and a developing cold front forced the plane to make an unscheduled landing in Japan earlier this month.
"Andre Borschberg has passed the point of no return and must now see this 5 days 5 nights flight through to the end," Solar Impulse said on its website.

The pilot now no longer has the option to turn around and return to Japan, if the weather forecast changes.