RootsAir From Costa Rica, joined Feb 2005, 4187 posts, RR: 39 Posted (9 years 6 months 6 days 9 hours ago) and read 3100 times:
This project has been going on for at least 2years. Bertrand Piccard, first man to have achieved circumnavigating the world in a balloon with Brian Jones wants to circumnavigate the earth with a solar plane...here are more info
HAJFlyer From Switzerland, joined Sep 2005, 1475 posts, RR: 8
Reply 2, posted (9 years 6 months 6 days 9 hours ago) and read 3043 times:
"Another drawback of the airplane's low speed is that a trip around the world could take as long as 15 days. More time aloft means more food, water and supplies are needed"
"By the time each day dawns, Solar Impulse will have sunk to just 10,000 to 15,000 ft.--below the altitude at which clouds commonly form. If sunrise finds Solar Impulse struggling along beneath heavy cloud cover, it will be Game Over."
Let me get this straight:
- 40 hp
- 30 mph
- 15 days
- need for constant good weather
- massive payload restrictions
- today's battery technology
I don't think it will happen any time soon in spite of the massive advances in solar cell technology that have occurred recently. If we ever get light weight high capacity batteries he might stand a chance, but until then I am somewhat sceptical.
Nevertheless it would be great if Switzerland did mange to write aviation history one again.