Friday, March 29, 2013

Solar Impulse to fly across the US, pilots preparing for a trip around the world in 2015 Hands-on By Michael Gorman posted Mar 28th, 2013, ENGADGET


Solar Impulse to fly across the US in preparation for a trip around the world in 2015
We've been tracking the sun-powered plane known as Solar Impulse for years as it roved hither and yon. Today, Solar Impulse's pilots, Bertrand Piccard and Andre Borschberg, came to NASA's Ames research center to announce their plan to fly across America. The cross-country tour will begin in the Bay Area and end in New York, with stops in Phoenix, Dallas and Washington DC in between. Solar Impulse will also land in either Atlanta, Nashville or St. Louis, with the plane and its pilots set to stay in each locale for about a week to ten days to talk about the project before moving on. For the next month, Piccard and Borschberg will perform test flights around the Bay Area in preparation, and the plan is for the journey to start on May 1st, with an estimated arrival in Gotham sometime in early July.

Solar Impulse Across America event

The point of this new flight is to inspire and educate the public in general of the benefits of renewable energy and efficiency, and to encourage school children and university students in particular to "think off the grid" and innovate and invent on their own. To that end, the pilots will be broadcasting live transmissions and allowing the public to speak with them as they fly, in addition to providing access to flight planning information on the Solar Impulse website. Read on to learn a bit more about the Solar Impulse project and it's future plans.
During their presentation, Piccard and Borschberg also chatted a bit about their next big challenge, a solar-powered flight around the world in 2015. You see, the current Solar Impulse aircraft is merely a test mule, that has allowed the pair to learn much about solar powered flight. However, there have been advances in materials science, battery technology, electric motors and production processes since the plane first flew over three years ago. So, the new plane will have a larger cockpit that's "at least as comfortable as business class," according to Borschberg, to make the longer journey easier on the pilots. You see, because the current plane is so uncomfortable, it's only suited for being piloted for 24 hours or so continuously. By comparison, the aircraft destined to circumnavigate the globe will be flown for five full days at a time.
Solar Impulse to fly across the US in preparation for a trip around the world in 2015
Of course, that begs the question: exactly how will Piccard and Borschberg be able to pilot a plane for a full workweek without sleeping? Well, Piccard fights fatigue through auto hypnosis, while Borschberg utilizes meditation to rest his mind and body. In preparation for the grueling global journey, they are also spending time in flight simulators to test out resting strategies (i.e. short naps) as the limits of the human body to do without sleep tops out around 36 hours. And, folks leery of having an unmanned solar plane flying overhead needn't worry -- the pilots will only be micro-napping while flying over oceans, not over land.
9 comments
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24 people listening
guillermosolana
guillermosolana
If they are TWO, why don't they take turns to sleep aboard?
MichaelGorman
MichaelGorman moderator
@guillermosolana Due to efficiency requirements (read: the plane's gotta be as light as possible), they can only fly with one pilot on board at a time. Flying with two people means you've gotta carry twice the pilot weight, have a bigger cabin, and carry double the water and provisions to keep them going. It's just not feasible..... yet.
kweku101
kweku101
As awesome as this is, the airplane makers still are using a design that has yet to be innovated on. Still looks like an old fashioned plane.
Weapon
Weapon
@kweku101 What needs to be "innovated" on? Planes have been improving since day 1 to be as efficient as possible. The only difference is they have a large wingspan to fit the solar panels. This is the best form factor  possible with current technology. As materials improve, other more radical designs become a possibility.
ToyYoda
ToyYoda
I can see this being the next type of race around the world non-stop funded and performed by eccentric billionaires like Richard Branson.

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