On Thu, 11 Jan 2007 01:10:23 GMT, David CL Francis
wrote in
:

On Tue, 9 Jan 2007 at 14:38:16 in message
, Larry Dighera
wrote:

http://www.teslamotors.com/

Interesting. I see Vauxhall in the UK have just launched a similar car.

Environmentally they do not produce much pollution on the road but, of
course, where they do create it is at the providing power station

I believe the efficiency of commercial electric generating power
stations and electrical motors is far superior to that of internal
combustion Otto Cycle engines ~38%.

(except for Nuclear of course).

The jury is still out on Nuclear. It is relatively clean during
normal operation, but one Chernobyl incident pollutes vast amounts
land (and air) for centuries. And then there's the waste disposal
issue....

I am prejudiced - I have just purchased a Toyota Prius! Nothing like as
sporty of course!

And considerably less expensive than the Tesla Motors car by a factor
of four or so.

Batteries will have to have a very great capacity for their weight to
make a normal aircraft successful.

That seems to be the reality. It is because battery energy must be
expended to support the aircraft as well as propel it, except for
lighter than air airships and balloons.