I saw that and think it's a good compromise - just like a
diesel-electric locomotive. I don't think batteries will achieve the
power density needed for practical cross country flight in my lifetime,
but that's no reason not to push the boundaries.

On 12/8/2015 7:26 AM, Charlie M. (UH & 002 owner/pilot) wrote:
On Monday, December 7, 2015 at 12:04:51 PM UTC-5, Dan Marotta wrote:

I also agree that newer battery technology is needed to make this
anything more than a high-priced toy, but then that's what our
gliders are, aren't they?
--

Dan, 5J
Did you see where the site mentioned they were looking at/working on a "hybrid"? Until battery energy density improves (a lot) they will add in a small generator to extend flight time.

--
Dan, 5J