On 28 Sep, 19:35, (Alan Braggins) wrote:
In article , harry wrote:
On 28 Sep, 11:07, Andy Burns wrote:

There is an explanation of sorts on their website, more or less it's not
the propeller turning the wheels, but the other way round ...
https://docs.google.com/View?docID=0AdRsKX7aaZTPZGRnbjhkajdfMTY0aGRzN...

"The reason the car works is that the propeller is pushing on air that
is moving slower than the speed of the car because there is a tailwind..
* This allows energy to flow into the system for propulsion, something
that would be impossible if there were no wind."

Clearly between you, Harry and TNP the details can now be thrashed out
for weeks.

So, you might just as well use a sail. Cheaper and more efficient.

Apart from the bit where the whole point is to go directly downwind,
faster than the wind, powered by the wind, and a sail can't do that.
Do try and keep up.

http://jalopnik.com/5556198/wind+pow...ernet-naysayer...
seems to be the most appropriately titled article on the subject.

http://blogs.discovermagazine.com/sc...0/06/10/imposs...
has a more suspect title, but does have a good explanation of how it gets
past the wind speed (i.e. through zero relative wind) without relying on
energy storage or switching mode of operation.- Hide quoted text -

- Show quoted text -

http://www.sciencedaily.com/releases...0827104702.htm
Noticable, they are going crosswind.