What about the pure solar plane flying around the globe - as we speak?

On Wed, Jun 17, 2015 at 1:54 PM, Meade Dillon via Mercedes <
mercedes@okiebenz.com> wrote:

> Please tell us the amount of power (kilowatts) in a square meter of
> sunlight at sea level.  Now compare that to the amount of power required to
> fly an airplane, and the square meters of wing surface on the upper wings
> of the subject airplane.  A little simple math, fill in some reasonable
> estimates for missing information, and I think you will begin to see that
> even if solar panels reach 100% efficiency, they still won't work...
>
> -------------
> Max
> Charleston SC
>
> On Wed, Jun 17, 2015 at 1:49 PM, Andrew Strasfogel via Mercedes <
> mercedes@okiebenz.com> wrote:
>
> > I beg to differ.  Solar panel efficiencies are climbing relentlessly
> while
> > the manufacturing cost continues to decline.
> >
> >
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